US1432125A - Drier - Google Patents

Description

A. C. SARGENT.

DRIER.

APPLICATION FILED MAR. I0, 1921.

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` DETER.

. .,Application filed March 10, 1921. Serial No. 451,159.

To all 'whom it my concern:

. Be it known that l, ALLAN C. SAizeaNn a citizen of the United States, Vresiding at Westiord, in the cunt ave invented anew and usetul'Drier, oi'which the ollowing is Thisinvention relates to a drier for brus materials `in which the stock is f ed through continuously and loosened and dried as it passes through the machine. The principal-objects of the invention areqto provide a device orP simple characterfor both .conveying the stock through and loosening it up into a condition in which each liber `practically will be exposed to the drying action oit the air introduced; and to provide improved means for directing the 'current of drying air through the stock. Tn general, the invention involves a construction which isI very simpleand inexpensive, has few parts, and `is not likely to get out of order in use.

Reference is to be had tothe accompanyin drawings in which `g. 1 is a side elevation Qt a dryling plant is invenconstructed in accordance with t .tiony n Fig. 2 is a side elevation oit' the d rying and conveying drum proper the casi being shown with 'its stront' wail removed in order to' illustrate the interior parts in elevation;

' Fig. 3 -is an end view of the same; 'd is acentral'sectional view on an enlarged lscale on the line 4-4 rif-Fig. 1; Fig. 5 is a-.v longitudinal central sectional view 'showing the ends lof the device.

. ll have shown the invention asinvolving a ca sing'10y provided with a arret/shafts 11. extending longitudinall t erect .hut 1n i. an'.,{inclined direction. he shafts are id riven vfrom a pulley 12 b means'ot gearing e same direction.

Each shaft` 11 is liprovided with a series of i 'snpplorting rolls 1d and on these rolls is sup- .ported a conveying and dryingY .drum 15. This drum consists ofafc lin erf of wire i mesh `or other o en materia Athat will allow the air to circan ate through it -hut prevent vided :with ay pluralitylo `cylindrical bands 16S-hy which itis supported oiyn the several pair-sof rollers V14.. At; one end-the. dis provided with a v e5 zcylindrifcal receiving projection17-but both of Middlesex and Althoughll f noted that the drum 15 'is located on an inclined axis, receives the material at the upl per end, and discharges it by gravity and its rotary action at the lower end. Tt is also provided with longitudinal bars 21, each having a series of pins 22 located at an inclination toward thedirection in which the drum rotates for picking up the ibrous material at the bottom, carrying it u around with them to the top, and then etting it y drop back across the drum. This action results in bpening up the ber and holding it in loose conditlon.

Located between the two ends of the casingj 10 ll have shown a pair ot Sturtevant pressure fans 25' although any other convenient number can be used. rThey operate to draw the air in along a passage 26, art or it coming in through a regulating amper v2'? and part 'of it coming upl through the drums as indicated bythe arrows. This air is forced down through a heating unit consisting of aseries oir steam pipes 28, in the f form shown. v. llt is forcedto circulate inte ythe bottom of the drum through an opening or passage 29 which may be bounded .by two wals 30 and 3l. The heated air therefore passes up through the loose material, while that is in the act of falling and rising, and

out' through an opening 32 into the passage i,

.95: tremely simple drying device and vone that. i

26.(This atords av vvery edicient and enaey has. great durability and requires verylittle 1 attention.

only asin le orinot thetfinventionll am. awarey et t e fact'pthat modications can he made therein by any` erson' skilled in the art witljiofutl departin rom the scope et the invention asexpresse inthe claims.. There- ,'oreg Tide not wish to be limited to all thel the-combirfationf or arotary having have described and illustrated les' details of construction and' arrangements -walls through which the air can circulate freely and providedwith internal inclined straight pointed pins for carrying the stock upwardly and part way around as the drum rotates, a heating unit adjacent to the drum between its ends, means for blowing air through said unit and intothe drum near the bottom, and means for leading the current of air' from the top of the drum transversely back to said blowing means.

2. In a drier for fibrous materials, the

' combination of an inclined rotary screen 1drum having longitudinal rows of carrying pins projecting inwardly therefrom at an angle, means for rotatlng sald drum, means for nasales forcing it down through the heating pipes.v ln testimony whereof I have hereunto aixed my signature.

ALLAN o.' sARGENT.'

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