CN117848047B - Pressure roasting furnace for graphite preparation - Google Patents
Pressure roasting furnace for graphite preparation Download PDFInfo
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- CN117848047B CN117848047B CN202410256875.1A CN202410256875A CN117848047B CN 117848047 B CN117848047 B CN 117848047B CN 202410256875 A CN202410256875 A CN 202410256875A CN 117848047 B CN117848047 B CN 117848047B
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- inner cylinder
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- graphite
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 93
- 239000010439 graphite Substances 0.000 title claims abstract description 92
- 229910002804 graphite Inorganic materials 0.000 title claims abstract description 92
- 238000002360 preparation method Methods 0.000 title description 3
- 238000011049 filling Methods 0.000 claims abstract description 89
- 230000007246 mechanism Effects 0.000 claims abstract description 48
- 230000005484 gravity Effects 0.000 claims abstract description 12
- 238000010438 heat treatment Methods 0.000 claims description 66
- 238000007599 discharging Methods 0.000 claims description 34
- 239000000463 material Substances 0.000 claims description 23
- 238000007789 sealing Methods 0.000 claims description 15
- 238000002485 combustion reaction Methods 0.000 claims description 12
- 238000005096 rolling process Methods 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000007664 blowing Methods 0.000 claims description 2
- 238000010030 laminating Methods 0.000 claims description 2
- 210000001161 mammalian embryo Anatomy 0.000 claims description 2
- 239000010426 asphalt Substances 0.000 abstract description 20
- 239000011230 binding agent Substances 0.000 abstract description 20
- 238000000034 method Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 8
- 239000011449 brick Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 230000005012 migration Effects 0.000 abstract description 4
- 238000013508 migration Methods 0.000 abstract description 4
- 230000009471 action Effects 0.000 description 11
- 239000011305 binder pitch Substances 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 7
- 230000004888 barrier function Effects 0.000 description 5
- 239000000571 coke Substances 0.000 description 5
- 238000004939 coking Methods 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- 238000004804 winding Methods 0.000 description 5
- 238000000605 extraction Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000006253 pitch coke Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B17/00—Furnaces of a kind not covered by any of groups F27B1/00 - F27B15/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D7/00—Forming, maintaining or circulating atmospheres in heating chambers
- F27D7/06—Forming or maintaining special atmospheres or vacuum within heating chambers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
The invention relates to the technical field of roasting furnaces, in particular to a pressurized roasting furnace for preparing graphite, which comprises an inner cylinder, an inflation pressurizing mechanism, a plurality of baffles and a plurality of baffle rings. The plurality of baffles are uniformly distributed in the inner barrel along the first direction, each baffle ring is arranged corresponding to one baffle, the inner barrel and the inflation pressurizing mechanism are sequentially arranged along the first direction, and when the filling space is in a closed state, the inflation pressurizing mechanism can generate gas. In the process of roasting the graphite green bricks, the gas generated by the gas charging pressurizing mechanism enters the inner cylinder to generate gas pressure, and the gas pressure is utilized to apply acting force opposite to the gravity direction of the graphite green bricks to the binder asphalt in a molten state in the inner cylinder, so that the downward migration effect of the binder asphalt in the molten state is weakened, and the consistency of the mechanical strength of the binder in the vertical height is improved.
Description
Technical Field
The invention relates to the technical field of roasting furnaces, in particular to a pressurized roasting furnace for preparing graphite.
Background
The graphite pressurizing roasting furnace is widely applied to production and research links of materials such as graphite products and carbon fibers, and in the roasting process, graphite blanks are surrounded by a filling material for isolating air, and the binder asphalt in the products is changed into asphalt coke by continuously receiving external heat and is combined with carbon aggregate particles into a firm whole.
However, in the roasting process of the graphite pressure roasting furnace in the prior art, as the roasting temperature rises, the binder asphalt is converted into a molten state from a solid state in a certain temperature interval and migrates in the vertical direction under the action of gravity, so that the coking value of the binder asphalt when the binder asphalt is converted into asphalt coke is reduced, and finally the mechanical strength of the binder is inconsistent in the vertical height.
Disclosure of Invention
The invention provides a pressurized roasting furnace for graphite preparation, which aims to solve the problems that in the roasting process of the existing pressurized roasting furnace for graphite, as the roasting temperature rises, binder asphalt is converted into a molten state from a solid state in a certain temperature interval and is migrated in the vertical direction under the action of gravity, so that the coking value of the binder asphalt is reduced when the binder asphalt is converted into asphalt coke, and finally, the mechanical strength of the binder is inconsistent in the vertical height.
The invention relates to a pressure roasting furnace for preparing graphite, which adopts the following technical scheme: a pressurized roasting furnace for preparing graphite comprises an inner cylinder, an inflation pressurizing mechanism, a plurality of baffles and a plurality of baffle rings; the plurality of baffles are uniformly distributed in the inner cylinder along a first direction, the first direction is a vertical direction, a discharging space is defined among the plurality of baffles, and the discharging space is used for placing graphite blanks; a plurality of baffle rings are uniformly distributed in the inner cylinder along a first direction, and each baffle ring is arranged corresponding to one baffle plate; the baffle ring and the baffle plate correspondingly arranged in the inner cylinder define a filling space, the filling space is communicated with the discharging space, the filling space is provided with an opening state and a closing state, when the filling space is in the opening state, the baffle ring and the baffle plate correspondingly arranged in the opening state have a space in a first direction, and the filling material can enter the filling space, and when the filling material is in the closing state, the baffle ring and the baffle plate correspondingly arranged in the closing state are contacted and sealed with each other; the filling space is in an open state in the initial state, the inner cylinder and the inflating and pressurizing mechanism are sequentially arranged along a first direction, when the filling space is in a closed state, the inflating and pressurizing mechanism can generate gas, the gas can enter the discharging space and exert pressure on the graphite green blanks in the discharging space, and the direction of the air pressure is opposite to the gravity direction of the graphite green blanks; the plurality of baffle rings are movably mounted to the inner cylinder in a first direction, and the baffle rings are movable in the first direction to switch the filling space between an open state and a closed state.
Further, a bottom plate is arranged at one end of the inner cylinder along the first direction, the bottom plate is positioned at one side of the baffle plate, which is close to the inflation pressurizing mechanism along the first direction, and the bottom plate is arranged into a net structure.
Further, the inflation pressurizing mechanism comprises an air pump, and the air pump is arranged below the inner cylinder and is communicated with the inner cylinder through a bottom plate.
Further, the graphite green brick heating device further comprises a heating cylinder and a combustion furnace, wherein the heating cylinder is sleeved on the inner cylinder and is positioned on one side, far away from the graphite green brick, of the inner cylinder along a second direction, the second direction is the radial direction of the inner cylinder, a heating cavity is defined between the inner cylinder and the heating cylinder, the combustion furnace is connected with the heating cavity, and the combustion furnace is used for providing a heat source for the heating cavity.
Further, the graphite blank heating device also comprises a plurality of heating rings, wherein the plurality of heating rings are uniformly distributed on the heating cylinder along a first direction, and the plurality of heating rings are positioned on one side of the heating cylinder away from the graphite blank along a second direction; each heating ring is provided with a plurality of heat source ports, the heat source ports are uniformly distributed on the heating ring around the first direction, the heating cylinder is provided with a plurality of heating ports, the heating cylinders are uniformly distributed around the first direction, and each heating port is communicated with one heat source port.
Further, still include at least one connecting rod, the connecting rod sets up along first direction, and a plurality of baffle rings coaxial setting and link to each other through at least one connecting rod, are connected with at least one cylinder on the inner tube, and every cylinder corresponds the setting with a connecting rod, and connecting rod fixed mounting is in the output of its cylinder that corresponds the setting.
Further, the baffle is fan-shaped and coaxial with the graphite green body, two ends of the baffle in the circumferential direction are two free ends, the two free ends are overlapped to form an annular structure, the baffle is provided with an outer ring and an inner ring, the outer ring is positioned at one side of the inner ring away from the inflation pressurizing mechanism along the first direction, and the outer ring is positioned at one side of the inner ring away from the central axis of the inner cylinder along the second direction; the discharging space is defined by the inner rings of a plurality of baffles together, the baffle ring is located at one side, close to the inflation pressurizing mechanism, of the baffle plate which is arranged correspondingly along the first direction, an inclined surface is arranged on the baffle ring, the inclined surface of the baffle ring is located at one side, close to the baffle plate which is arranged correspondingly along the first direction, of the baffle plate, the diameter of the outer ring of the baffle plate is smaller than that of the baffle ring, and the baffle ring moves along the first direction to the side, far away from the inflation pressurizing mechanism, of the baffle ring, so that the filling space can be switched from an opening state to a closing state.
Further, the baffle ring is provided with first sealing ring along one side of baffle that its corresponds that sets up along first direction, and the baffle is provided with the second sealing ring along one side of baffle that its corresponds that sets up along first direction, keeps away from inflation pressurization mechanism one side along first direction to the baffle ring and removes, can make first sealing ring and second sealing ring laminating.
Further, graphite embryo is the cylindricality structure, and the blowing space that the inner circle of a plurality of baffles defined is the cylindricality structure, and two free ends of baffle are rolling end and stiff end respectively, and the rolling end extends at its circumference to the stiff end, and stiff end fixed mounting is in the inner tube, and the rolling end can set up rotationally around first direction.
Further, the fixed ends of the plurality of baffles are connected through a fixed rod, the fixed rod is arranged along the first direction, and the fixed rod is fixedly arranged on the inner cylinder; the rolling ends of the baffles are connected through a rotating rod, the rotating rod is arranged along a first direction, a friction ring is arranged on the rotating rod, the friction ring and the baffles are coaxially arranged, a motor is arranged on the inner cylinder, a friction wheel is arranged at the output end of the motor, and the friction wheel and the friction ring are in friction transmission.
The beneficial effects of the invention are as follows: according to the pressurized roasting furnace for preparing graphite, the inflation pressurizing mechanism, the plurality of baffles and the plurality of baffle rings are arranged in the inner cylinder to be matched, the filling space is in an open state in an initial state, at the moment, the filling material can enter the filling space, and the graphite green body can also be placed in the discharging space, and the filling space is communicated with the discharging space, so that the filling material can be used for coating the graphite green body, and subsequent roasting is facilitated. When the placement of the graphite blanks and the filling of the filling materials are completed, the blocking ring is utilized to move along the first direction to enable the filling space to be switched from an open state to a closed state, then the graphite blanks are roasted, in the roasting process of the graphite blanks, the binder asphalt is converted into a molten state from a solid state within a certain temperature range along with the rising of the roasting temperature and is downwards migrated in the vertical direction under the action of gravity, at the moment, gas generated by the inflation pressurizing mechanism enters the inner cylinder to generate air pressure due to the action of the inflation pressurizing mechanism, and the air pressure is utilized to apply an acting force opposite to the gravity direction of the graphite blanks to the binder asphalt in the molten state in the inner cylinder, namely, the acting force upwards along the vertical direction, so that the downwards migration effect of the binder asphalt in the molten state is weakened under the action of pressure difference, the phenomenon that the coking value of the binder asphalt is excessively reduced when the binder asphalt is converted into asphalt coke is avoided, and the consistency of the mechanical strength of the binder on the vertical height is improved. And the baffle ring moves along the first direction to switch the filling space from the open state to the closed state, so that the sealing property of the filling space can be improved, and gas generated by the inflation pressurizing mechanism is prevented from entering the filling space.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view showing the overall structure of an embodiment of a pressure roasting furnace for graphite production according to the present invention;
FIG. 2 is a front view showing the overall structure of an embodiment of a pressure roasting furnace for graphite production according to the present invention;
FIG. 3 is a cross-sectional view showing the overall structure of an embodiment of a pressure roasting furnace for graphite production according to the present invention;
FIG. 4 is an enlarged view of FIG. 3 at A;
FIG. 5 is a schematic view showing the internal structure of an embodiment of a pressure roasting furnace for graphite production according to the present invention;
Fig. 6 is a schematic view showing the structure of a baffle plate of an embodiment of a press-roasting furnace for graphite production according to the present invention.
In the figure: 100. an inner cylinder; 110. a bottom plate; 120. a barrel cover; 130. a cylinder; 140. a motor; 141. a friction wheel; 200. an inflation pressurizing mechanism; 300. a baffle; 301. an outer ring; 302. an inner ring; 303. a winding end; 304. a fixed end; 305. a rotating lever; 306. a fixed rod; 307. a friction ring; 310. a discharging space; 400. a baffle ring; 410. filling the space; 420. a connecting rod; 500. a graphite green body; 600. a heating cylinder; 610. a heating chamber; 700. a combustion furnace; 710. a heating ring; 711. a heat source port.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
An example of a press-roasting furnace for graphite production according to the present invention is shown in fig. 1 to 6.
A pressurized roasting furnace for preparing graphite comprises an inner cylinder 100, an inflation pressurizing mechanism 200, a plurality of baffles 300 and a plurality of baffle rings 400. The baffles 300 are uniformly distributed in the inner cylinder 100 along a first direction, wherein the first direction is a vertical direction, a discharging space 310 is defined between the baffles 300, and the discharging space 310 is used for placing the graphite green bodies 500.
The baffle rings 400 are uniformly distributed in the inner cylinder 100 along the first direction, each baffle ring 400 is correspondingly arranged with one baffle 300, the baffle rings 400 and the baffle 300 correspondingly arranged in the inner cylinder 100 define a filling space 410, the filling space 410 is communicated with the discharging space 310, the filling space 410 has an open state and a closed state, when the filling space 410 is in the open state, the baffle rings 400 and the baffle 300 correspondingly arranged in the opening state have a space in the first direction, and the filling material can enter the filling space 410, can cover the graphite green body 500, and when the filling space is in the closed state, the baffle rings 400 and the baffle 300 correspondingly arranged in the closing state are contacted and sealed with each other; the filling space 410 is in an open state in the initial state.
The inner cylinder 100 and the inflation pressurization mechanism 200 are sequentially arranged along the first direction, and when the filling space 410 is in a closed state, the inflation pressurization mechanism 200 can generate gas, the gas can enter the discharging space 310 and exert pressure on the graphite green body 500 in the discharging space 310, and the direction of the air pressure is opposite to the gravity direction of the graphite green body 500; the plurality of barrier rings 400 are each movably mounted to the inner cylinder 100 in a first direction, and movement of the barrier rings 400 in the first direction can switch the filling space 410 between an open state and a closed state.
In this embodiment, the inflation and pressurization mechanism 200, the plurality of baffles 300 and the plurality of baffle rings 400 are disposed in the inner cylinder 100, the filling space 410 is in an open state in the initial state, and the filling material can enter the filling space 410, and the graphite green body 500 can also be placed in the discharging space 310, and the filling space 410 is communicated with the discharging space 310, so that the filling material can be utilized to cover the graphite green body 500, thereby facilitating the subsequent roasting.
When the placement of the graphite blank 500 and the filling of the filling material are completed, the filling space 410 is switched from the open state to the closed state by moving the baffle ring 400 along the first direction, and then the graphite blank 500 is baked, in the process of baking the graphite blank 500, as the baking temperature rises, the binder pitch is converted from a solid state to a molten state within a certain temperature interval and is migrated downwards in the vertical direction under the action of gravity, at this time, due to the action of the inflation pressurizing mechanism 200, the gas generated by the inflation pressurizing mechanism 200 enters the inner cylinder 100 to generate air pressure, and the air pressure is utilized to apply a force opposite to the gravity direction of the graphite blank 500 to the binder pitch in the molten state in the inner cylinder 100, namely, an upward force along the vertical direction, so that the downward migration effect of the binder pitch in the molten state is achieved under the action of the pressure difference, the coking value of the binder pitch is prevented from being reduced too much when the binder pitch is converted into pitch coke, and the uniformity of the mechanical strength of the binder in the vertical height is improved. And the baffle ring 400 moves along the first direction to switch the filling space 410 from the open state to the closed state, so that the sealing performance of the filling space 410 can be improved, and the gas generated by the inflation pressurization mechanism 200 is prevented from entering the filling space 410.
In the present embodiment, a bottom plate 110 is disposed at one end of the inner cylinder 100 along the first direction, the bottom plate 110 is located at one side of the baffle 300 along the first direction near the inflation pressurization mechanism 200, and the bottom plate 110 is disposed in a mesh structure. The other end of the inner cylinder 100 along the first direction is provided with a barrel cover 120, the barrel cover 120 is rotatably connected to the inner cylinder 100, and the barrel cover 120 is positioned at one side of the baffle 300 away from the inflation pressurization mechanism 200 along the first direction.
When the filling device is used, the barrel cover 120 is opened, the graphite green body 500 and the filling material are added into the inner barrel 100, the baffle ring 400 is moved along the first direction, the filling space 410 is switched from the opened state to the closed state, gas generated by the inflating and pressurizing mechanism 200 can flow upwards through the meshed bottom plate 110 and enter the inner barrel 100 to generate air pressure, the air pressure is utilized to apply an upward acting force to the adhesive asphalt in the molten state in the inner barrel 100 along the vertical direction, and the baffle 300 and the baffle ring 400 correspondingly arranged are hermetically arranged when the gas enters the inner barrel 100, so that the gas basically cannot escape, namely, the baffle ring 400 moves along the first direction to enable the filling space 410 to be switched from the opened state to the closed state, the sealing performance of the filling space 410 can be improved, and the gas generated by the inflating and pressurizing mechanism 200 is prevented from entering the filling space 410.
Specifically, the inflation pressurization mechanism 200 includes an air pump that is mounted below the inner cylinder 100 and communicates with the inner cylinder 100 through the bottom plate 110.
In this embodiment, the pressure roasting furnace for preparing graphite further includes a heating cylinder 600 and a combustion furnace 700, the heating cylinder 600 is sleeved on the inner cylinder 100 and is located at one side of the inner cylinder 100 away from the graphite green body 500 along a second direction, the second direction is a radial direction of the inner cylinder 100, a heating cavity 610 is defined between the inner cylinder 100 and the heating cylinder 600, the combustion furnace 700 is connected with the heating cavity 610, and the combustion furnace 700 is used for providing a heat source for the heating cavity 610.
Specifically, the press roasting furnace for preparing graphite further includes a plurality of heating rings 710, wherein the plurality of heating rings 710 are uniformly distributed on the heating cylinder 600 along the first direction, and the plurality of heating rings 710 are located on one side of the heating cylinder 600 away from the graphite green body 500 along the second direction. Each heating ring 710 is provided with a plurality of heat source openings 711, the plurality of heat source openings 711 are uniformly distributed on the heating ring 710 around the first direction, the heating cylinder 600 is provided with a plurality of heating openings, the plurality of heating openings are uniformly distributed on the heating cylinder 600 around the first direction, and each heating opening is communicated with one heat source opening 711.
In use, the heat source provided by the burner 700 will be equally divided into a plurality of heating rings 710 and split from a plurality of heat source ports 711 on the plurality of heating rings 710, so that the heat source enters the heating chamber 610 from a corresponding one of the heat source ports 711, thereby realizing the calcination of the graphite green body 500.
In this embodiment, the pressure roasting furnace for preparing graphite further includes at least one connecting rod 420, the connecting rod 420 is disposed along the first direction, the plurality of baffle rings 400 are coaxially disposed and connected through the at least one connecting rod 420, at least one cylinder 130 is connected to the inner cylinder 100, each cylinder 130 is disposed corresponding to one connecting rod 420, and the connecting rod 420 is fixedly mounted at the output end of the corresponding cylinder 130.
When in use, the cylinder 130 is driven to act, so that the connecting rods 420 correspondingly arranged on the cylinder 130 are driven to move in the first direction, and the baffle rings 400 are driven to synchronously move.
In this embodiment, the baffle 300 is fan-shaped and coaxial with the graphite blank 500, two ends of the baffle 300 in the circumferential direction thereof are two free ends, the two free ends are overlapped to form an annular structure, the baffle 300 has an outer ring 301 and an inner ring 302, the outer ring 301 is located at a side of the inner ring 302 away from the inflation pressurization mechanism 200 in the first direction, and the outer ring 301 is located at a side of the inner ring 302 away from the central axis of the inner cylinder 100 in the second direction, that is, the baffle 300 has a tapered structure. The discharging space 310 is defined by the inner rings 302 of the plurality of baffles 300, the baffle ring 400 is positioned at one side, close to the inflation pressurization mechanism 200, of the baffle 300 correspondingly arranged along the first direction, an inclined surface is arranged on the baffle ring 400, the inclined surface of the baffle ring 400 is positioned at one side, close to the baffle 300 correspondingly arranged along the first direction, of the baffle ring 300, and the diameter of the outer ring 301 of the baffle ring 300 is smaller than that of the baffle ring 400.
When the baffle ring 400 and the baffle 300 disposed corresponding thereto are spaced apart in the first direction, the filling space 410 is in an open state, and when the baffle ring 400 and the baffle 300 disposed corresponding thereto are in contact and sealed with each other, the filling space 410 is in a closed state, and the baffle ring 400 is moved away from the inflation pressurization mechanism 200 in the first direction, so that the filling space 410 can be switched from the open state to the closed state.
Specifically, a first sealing ring is disposed on one side, close to the baffle 300, that is disposed corresponding to the baffle 400 along the first direction, and a second sealing ring is disposed on one side, close to the baffle 400, that is disposed corresponding to the baffle 300 along the first direction, of the baffle 400, and the baffle 400 moves away from the inflation pressurization mechanism 200 along the first direction, that is, the baffle 400 moves upward along the first direction, so that the first sealing ring and the second sealing ring can be attached.
In another possible embodiment, the baffle 300 is fan-shaped and coaxial with the graphite green body 500, two free ends of the baffle 300 in the circumferential direction thereof are overlapped to form an annular structure, the baffle 300 has an outer ring 301 and an inner ring 302, the outer ring 301 is located on a side of the inner ring 302 away from the inflation pressurization mechanism 200 in the first direction, and the outer ring 301 is located on a side of the inner ring 302 away from the central axis of the inner cylinder 100 in the second direction, that is, the baffle 300 is in a tapered structure. The baffle ring 400 is located at a side of the baffle 300 which is disposed correspondingly away from the inflation pressurization mechanism 200 in the first direction, and the diameter of the baffle 300 is smaller than that of the baffle ring 400.
When the stopper ring 400 and the corresponding baffle 300 are spaced apart in the first direction, the filling space 410 is in an open state, and when the stopper ring 400 and the corresponding baffle 300 are in contact and sealed with each other, the filling space 410 is in a closed state, and the stopper ring 400 can be moved to a side close to the inflation pressurization mechanism 200 in the first direction, so that the filling space 410 can be switched from the open state to the closed state.
In this embodiment, the graphite green body 500 is of a cylindrical structure, the discharging space 310 defined by the inner rings 302 of the plurality of baffles 300 is of a cylindrical structure, two free ends of the baffles 300 are respectively a winding end 303 and a fixing end 304, the winding end 303 extends towards the fixing end 304 in the circumferential direction thereof, the fixing end 304 is fixedly mounted on the inner cylinder 100, and the winding end 303 can be rotatably arranged around the first direction.
Specifically, the fixed ends 304 of the plurality of baffles 300 are connected by a fixing rod 306, the fixing rod 306 is disposed along the first direction, and the fixing rod 306 is fixedly mounted to the inner cylinder 100. The rolling ends 303 of the baffles 300 are connected through a rotating rod 305, the rotating rod 305 is arranged along the first direction, a friction ring 307 is arranged on the rotating rod 305, the friction ring 307 and the baffles 300 are coaxially arranged, a motor 140 is arranged on the inner cylinder 100, a friction wheel 141 is arranged at the output end of the motor 140, and the friction wheel 141 and the friction ring 307 are in friction transmission.
In this embodiment, the rolling ends 303 of the plurality of baffles 300 are connected together by the rotating rod 305, and because the fixed ends 304 of the plurality of baffles 300 are connected to the inner cylinder 100 by the fixed rod 306, before the graphite green body 500 is placed, the motor 140 is started, when the motor 140 is started, the friction wheel 141 can be driven to rotate, and then the friction ring 307 in friction transmission with the friction wheel 141 is driven to rotate, the friction ring 307 rotates to drive the rotating rod 305 to rotate, the rotating rod 305 rotates to drive the rolling ends 303 of the plurality of baffles 300 connected with the rotating rod 305 to rotate around the first direction at the same time, the diameter of the inner ring 302 of the baffles 300 is changed, namely, the diameter of the discharging space 310 is changed, and then the motor 140 is matched with the graphite green bodies 500 with different diameters, so that the application range is increased. And after the roasting is completed, the motor 140 can be started again, the diameter of the discharging space 310 is reduced, and then the residual filling material on the roasted graphite is scraped, and as the discharging space 310 is communicated with the filling space 410, the filling space 410 is relatively enlarged after the whole discharging space 310 is reduced, so that the space of the filling material in the filling space 410 is enlarged, the extrusion of the filling material to the roasted graphite is reduced, and the extraction of the roasted graphite is facilitated.
In combination with the above embodiment, the working principle and working process are as follows:
before placing the graphite green body 500, the motor 140 is started, when the motor 140 is started, the friction wheel 141 can be driven to rotate, then the friction ring 307 in friction transmission with the friction wheel 141 is driven to rotate, the friction ring 307 rotates to drive the rotating rod 305 to rotate, the rotating rod 305 rotates to drive the winding ends 303 of the plurality of baffles 300 connected with the rotating rod 305 to rotate around the first direction, the diameter of the discharging space 310 is changed, and then the graphite green body 500 with different diameters is matched.
In the initial state, the filling space 410 is in an open state, the baffle ring 400 and the baffle 300 correspondingly arranged are spaced in the first direction, at the moment, the filling material can enter the filling space 410, and the graphite green body 500 can also be placed in the discharging space 310, and the filling space 410 is communicated with the discharging space 310, so that the filling material can be utilized to coat the graphite green body 500, and the subsequent roasting is convenient.
When the placement of the graphite green body 500 and the filling of the filling material are completed, the cylinder 130 is driven to act, and then the connecting rods 420 correspondingly arranged by the cylinder 130 are driven to move in the first direction, and the plurality of baffle rings 400 are driven to synchronously move. The filling space 410 is switched from the opened state to the closed state by the movement of the barrier ring 400 in the first direction, i.e., the barrier ring 400 contacts and seals with the corresponding barrier 300.
The barrel cover 120 is closed, the combustion furnace 700 is started, the heat source provided by the combustion furnace 700 is equally divided into a plurality of heating rings 710, and the heat source is divided into a plurality of heat source ports 711 on the plurality of heating rings 710, so that the heat source enters the heating cavity 610 from a corresponding heating port of each heat source port 711, and further, the roasting of the graphite green body 500 is realized.
In the process of roasting the graphite green compact 500, as the roasting temperature increases, the binder pitch is converted from a solid state to a molten state in a certain temperature interval and migrates downwards in the vertical direction under the action of gravity, at this time, due to the action of the inflation pressurizing mechanism 200, gas generated by the inflation pressurizing mechanism 200 enters the inner cylinder 100 to generate air pressure, and the air pressure is utilized to generate an acting force opposite to the gravity direction of the graphite green compact 500 on the binder pitch in the molten state in the inner cylinder 100, namely, an acting force upwards in the vertical direction, so that the downward migration effect of the binder pitch in the molten state is weakened under the action of a pressure difference, thereby avoiding excessive decline of coking values when the binder pitch is converted into asphalt coke, and improving the consistency of the mechanical strength of the binder in the vertical height.
After the roasting is completed, the motor 140 can be started again, the diameter of the discharging space 310 is reduced, and then the residual filling material on the roasted graphite is scraped, and since the discharging space 310 is communicated with the filling space 410, the filling space 410 is relatively enlarged after the whole discharging space 310 is reduced, so that the space of the filling material in the filling space 410 is enlarged, the extrusion of the filling material to the roasted graphite is reduced, and the extraction of the roasted graphite is facilitated.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (10)
1. A pressure roasting furnace for preparing graphite is characterized in that: comprises an inner cylinder, an inflation pressurizing mechanism, a plurality of baffles and a plurality of baffle rings; the plurality of baffles are uniformly distributed in the inner cylinder along a first direction, the first direction is a vertical direction, a discharging space is defined among the plurality of baffles, and the discharging space is used for placing graphite blanks; a plurality of baffle rings are uniformly distributed in the inner cylinder along a first direction, and each baffle ring is arranged corresponding to one baffle plate; the baffle ring and the baffle plate correspondingly arranged in the inner cylinder define a filling space, the filling space is communicated with the discharging space, the filling space is provided with an opening state and a closing state, when the filling space is in the opening state, the baffle ring and the baffle plate correspondingly arranged in the opening state have a space in a first direction, and the filling material can enter the filling space, and when the filling material is in the closing state, the baffle ring and the baffle plate correspondingly arranged in the closing state are contacted and sealed with each other; the filling space is in an open state in the initial state, the inner cylinder and the inflating and pressurizing mechanism are sequentially arranged along a first direction, when the filling space is in a closed state, the inflating and pressurizing mechanism can generate gas, the gas can enter the discharging space and exert pressure on the graphite green blanks in the discharging space, and the direction of the air pressure is opposite to the gravity direction of the graphite green blanks; the plurality of baffle rings are movably mounted to the inner cylinder in a first direction, and the baffle rings are movable in the first direction to switch the filling space between an open state and a closed state.
2. The pressure roasting furnace for preparing graphite of claim 1, wherein: one end of the inner cylinder along the first direction is provided with a bottom plate, the bottom plate is positioned on one side of the baffle plate, which is close to the inflation pressurizing mechanism along the first direction, and the bottom plate is arranged into a net structure.
3. The pressure roasting furnace for preparing graphite as claimed in claim 2, wherein: the inflation pressurizing mechanism comprises an air pump, and the air pump is arranged below the inner cylinder and is communicated with the inner cylinder through a bottom plate.
4. The pressure roasting furnace for preparing graphite of claim 1, wherein: the heating device comprises an inner cylinder, and is characterized by further comprising a heating cylinder and a combustion furnace, wherein the heating cylinder is sleeved on the inner cylinder and is positioned on one side, far away from the graphite green body, of the inner cylinder along a second direction, the second direction is the radial direction of the inner cylinder, a heating cavity is defined between the inner cylinder and the heating cylinder, the combustion furnace is connected with the heating cavity, and the combustion furnace is used for providing a heat source for the heating cavity.
5. The pressure roasting furnace for preparing graphite of claim 4, wherein: the graphite blank heating device further comprises a plurality of heating rings, wherein the heating rings are uniformly distributed on the heating cylinder along a first direction, and the heating rings are positioned on one side, far away from the graphite blank, of the heating cylinder along a second direction; each heating ring is provided with a plurality of heat source ports, the heat source ports are uniformly distributed on the heating ring around the first direction, the heating cylinder is provided with a plurality of heating ports, the heating cylinders are uniformly distributed around the first direction, and each heating port is communicated with one heat source port.
6. The pressure roasting furnace for preparing graphite of claim 1, wherein: the device comprises an inner cylinder, a plurality of baffle rings, at least one connecting rod, at least one cylinder, a plurality of connecting rods and a plurality of connecting rods, wherein the connecting rods are arranged along the first direction, the baffle rings are coaxially arranged and connected through the connecting rods, the inner cylinder is connected with the at least one cylinder, each cylinder corresponds to one connecting rod, and the connecting rods are fixedly installed at the output ends of the corresponding cylinders.
7. The pressure roasting furnace for preparing graphite of claim 1, wherein: the baffle is fan-shaped and coaxial with the graphite green body, two ends of the baffle in the circumferential direction of the baffle are two free ends, the two free ends are overlapped to form an annular structure, the baffle is provided with an outer ring and an inner ring, the outer ring is positioned at one side of the inner ring away from the inflation pressurizing mechanism along the first direction, and the outer ring is positioned at one side of the inner ring away from the central axis of the inner cylinder along the second direction; the discharging space is defined by the inner rings of a plurality of baffles together, the baffle ring is located at one side, close to the inflation pressurizing mechanism, of the baffle plate which is arranged correspondingly along the first direction, an inclined surface is arranged on the baffle ring, the inclined surface of the baffle ring is located at one side, close to the baffle plate which is arranged correspondingly along the first direction, of the baffle plate, the diameter of the outer ring of the baffle plate is smaller than that of the baffle ring, and the baffle ring moves along the first direction to the side, far away from the inflation pressurizing mechanism, of the baffle ring, so that the filling space can be switched from an opening state to a closing state.
8. The pressure roasting furnace for preparing graphite of claim 7, wherein: the baffle ring is provided with first sealing washer along the one side of baffle that its corresponds that sets up along first direction, and the baffle is provided with the second sealing washer along the one side of baffle that its corresponds that sets up along first direction, keeps away from inflation pressurization mechanism one side along first direction to the baffle ring and removes, can make first sealing washer and second sealing washer laminating.
9. The pressure roasting furnace for preparing graphite of claim 7, wherein: the graphite embryo is the cylindricality structure, and the blowing space that the inner circle of a plurality of baffles was limited is the cylindricality structure, and two free ends of baffle are rolling end and stiff end respectively, and the rolling end extends at its circumference to the stiff end, and stiff end fixed mounting is in the inner tube, and the rolling end can set up rotationally around first direction.
10. The pressure roasting furnace for preparing graphite of claim 9, wherein: the fixed ends of the baffles are connected through a fixed rod, the fixed rod is arranged along the first direction, and the fixed rod is fixedly arranged on the inner cylinder; the rolling ends of the baffles are connected through a rotating rod, the rotating rod is arranged along a first direction, a friction ring is arranged on the rotating rod, the friction ring and the baffles are coaxially arranged, a motor is arranged on the inner cylinder, a friction wheel is arranged at the output end of the motor, and the friction wheel and the friction ring are in friction transmission.
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Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH521288A (en) * | 1968-10-18 | 1972-04-15 | Philips Nv | Process for the production of cubic silicon carbide crystals |
| GB1386667A (en) * | 1972-06-09 | 1975-03-12 | Wickman Wimet Ltd | Sintering hard metal alloys |
| CN1583668A (en) * | 2004-06-10 | 2005-02-23 | 山东八三特种耐火材料厂 | Graphite sleeves of rollers at furnace bottom and their dipping process and special apparatus thereof |
| DE102008058329A1 (en) * | 2008-11-23 | 2010-05-27 | Dieffenbacher Gmbh + Co. Kg | Method for tempering a hot isostatic press and a hot isostatic press |
| JP2011020243A (en) * | 2009-07-21 | 2011-02-03 | Honda Motor Co Ltd | Method for manufacturing metal-bonded grinding wheel |
| CN102774830A (en) * | 2012-08-10 | 2012-11-14 | 昆明冶金研究院 | Method for impregnating high-purity graphite by using high-purity coal tar pitch |
| CN102795620A (en) * | 2012-09-07 | 2012-11-28 | 宝丰县五星石墨有限公司 | Compression roasting furnace for producing high-purity graphite |
| CN204824184U (en) * | 2015-08-24 | 2015-12-02 | 江西宁新碳素有限公司 | Produce high purity graphite's burning furnace that bakes over a slow fire |
| CN206546097U (en) * | 2017-03-15 | 2017-10-10 | 昆山台上品工业自动化有限公司 | A kind of lift pressured atmosphere sintering furnace |
| CN209740722U (en) * | 2018-12-10 | 2019-12-06 | 成都海成远创科技有限公司 | Furnace box for roasting large-size isostatic pressing graphite products at one time |
| JP2021130601A (en) * | 2020-02-19 | 2021-09-09 | 国立研究開発法人産業技術総合研究所 | Method for producing molding of graphite material |
| CN219037584U (en) * | 2022-10-12 | 2023-05-16 | 启东市乘龙密封有限公司 | Bidirectional high-pressure sintering device for sintered graphite |
| CN117287982A (en) * | 2023-09-07 | 2023-12-26 | 青岛晨阳石墨有限公司 | Pressurized roasting furnace for graphite production |
| CN117443656A (en) * | 2023-10-10 | 2024-01-26 | 河北天天碳素有限公司 | Impregnating device for graphite electrode production |
| CN117450791A (en) * | 2023-12-26 | 2024-01-26 | 山西晋能集团大同能源发展有限公司 | Pressure roasting furnace for graphite preparation |
| CN117463240A (en) * | 2023-12-27 | 2024-01-30 | 山西科福能源科技有限公司 | Continuous production device for high-purity graphite |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5692216B2 (en) * | 2010-03-11 | 2015-04-01 | 三菱化学株式会社 | Silicon manufacturing method and jig |
-
2024
- 2024-03-07 CN CN202410256875.1A patent/CN117848047B/en active Active
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH521288A (en) * | 1968-10-18 | 1972-04-15 | Philips Nv | Process for the production of cubic silicon carbide crystals |
| GB1386667A (en) * | 1972-06-09 | 1975-03-12 | Wickman Wimet Ltd | Sintering hard metal alloys |
| CN1583668A (en) * | 2004-06-10 | 2005-02-23 | 山东八三特种耐火材料厂 | Graphite sleeves of rollers at furnace bottom and their dipping process and special apparatus thereof |
| DE102008058329A1 (en) * | 2008-11-23 | 2010-05-27 | Dieffenbacher Gmbh + Co. Kg | Method for tempering a hot isostatic press and a hot isostatic press |
| JP2011020243A (en) * | 2009-07-21 | 2011-02-03 | Honda Motor Co Ltd | Method for manufacturing metal-bonded grinding wheel |
| CN102774830A (en) * | 2012-08-10 | 2012-11-14 | 昆明冶金研究院 | Method for impregnating high-purity graphite by using high-purity coal tar pitch |
| CN102795620A (en) * | 2012-09-07 | 2012-11-28 | 宝丰县五星石墨有限公司 | Compression roasting furnace for producing high-purity graphite |
| CN204824184U (en) * | 2015-08-24 | 2015-12-02 | 江西宁新碳素有限公司 | Produce high purity graphite's burning furnace that bakes over a slow fire |
| CN206546097U (en) * | 2017-03-15 | 2017-10-10 | 昆山台上品工业自动化有限公司 | A kind of lift pressured atmosphere sintering furnace |
| CN209740722U (en) * | 2018-12-10 | 2019-12-06 | 成都海成远创科技有限公司 | Furnace box for roasting large-size isostatic pressing graphite products at one time |
| JP2021130601A (en) * | 2020-02-19 | 2021-09-09 | 国立研究開発法人産業技術総合研究所 | Method for producing molding of graphite material |
| CN219037584U (en) * | 2022-10-12 | 2023-05-16 | 启东市乘龙密封有限公司 | Bidirectional high-pressure sintering device for sintered graphite |
| CN117287982A (en) * | 2023-09-07 | 2023-12-26 | 青岛晨阳石墨有限公司 | Pressurized roasting furnace for graphite production |
| CN117443656A (en) * | 2023-10-10 | 2024-01-26 | 河北天天碳素有限公司 | Impregnating device for graphite electrode production |
| CN117450791A (en) * | 2023-12-26 | 2024-01-26 | 山西晋能集团大同能源发展有限公司 | Pressure roasting furnace for graphite preparation |
| CN117463240A (en) * | 2023-12-27 | 2024-01-30 | 山西科福能源科技有限公司 | Continuous production device for high-purity graphite |
Non-Patent Citations (2)
| Title |
|---|
| 抗热震石墨材料研究;陈蔚然, 陈而旺, 周声勱;炭素;19830621(第02期);18-2318-23 * |
| 生物质黏结基石墨电极生坯焙烧过程中的膨化行为;赵子龙;王宏杰;董文艺;;哈尔滨工业大学学报;20170928(第02期);110-114 * |
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