US1451589A - Drier - Google Patents

Description

Apr. lo, w23.

. W. M SCHWARTZ ET AL.

DRIER lFaded Jan. 28, 1922 5 Sheets-sheet 5 l 'Patented Apr. i6, 1923.

:WLTER M. SCHWARTZ .AND ELWOOD B. AYRES,

ASSIGNORS T PROCTOR 8c SCHWARTZ,

SYLVANLB., A. CORPORATION 0F PENNSYLVANIA.

raise DRIER.

Application filed January T ol fzlZ whom it may concern Be" it known tthat We, WALTER M. SCHWARTZ and Enwoon B. Aimes, citizens of the United States, residing in Philadelphia, Pennsylvania, have invented certain Improvements in Driers, of which the following is a specification.

This invention relates to cert-ain improvements in dr'iers, .particularly adapted for drying bricks and other clayf or pottery ware,`prior to being baked in a kiln.

l@ne object of-our invention is'to design the drier so that the waste heat of a kiln can be utilized to dry material prioreto the `introduction of the material into the kiln.

A further object of the invention is to design the drier so that the heat obtained from the cooling zone ot the kiln-can be circulated in the drying chamber and the waste heat from the products of Combustion can be used by passing the products f ot combustion through flues in the drier.

The invention also relates to'details of construction, which will be fully described hereinafter.

In the accompanying drawings: y Fig. 1 isla side -view of our improved drier; y Fig. 2` isa sectional plan View, showing the two ends of the drier, the section being on the line 2-2, Fig. 3;

Fig. 3 is a longitudinal sectional view on the line 3--3, Fig. 2 Fig. 4 is a longitudinal sectional View on the line 4--4c, Fig. 2, illustrating the mechanism for pushing the cars into theA drier;

'F ig. 5 is a transverse sectionaL-view on the line .5f-5, Fig. 3; and

Fig. 6 is a diagram plan View, showing 40 drier in connection with a. kiln.

Referring toA the drawings, 1 is the casing of our improved drier. 'This casing. in the present instance, encloses two longitudinal drying chambers a and Z) and an intermediate circulating chamber c. Partitions 2 separate the drying chamber from the circulating chamber. TheseI partitions have upper openings 3 and lower openings 4 for the free circulation of the air. In the'present instarce, the drier is designed for drying bricks prior to their vlpassage to the kiln Where' they' are baked.

fn each drying chamber -is a track 5 on vwhich the cars .6 are moved through the the 2s, i922.r serial no. 532,388.

drier. .These cars are shown as designed especially to carry. the bricks ,which are stacked in .courses so that the air will pass ireely through the stacks ot bricks, thoroughly drying the entire load. Defiectors .7 i l 10, extending through ythe roof of the drier and each fan is driven from a. longitudinal shaft 11 by worm gearing 12, although the method ot' driving the tans and their location, may be changed without departing from the main features of the invention.

13 is a hot a'irflue extending longitudinally under the eircuiat-ing chamber c of the drier in the present instance. Connected with the fine is a pipe 14 leading from the cooling zone of a kiln. The upper portion of the flue 13 is closed by sheet metal. In this upperportion are passages 15, which communicate'with the circulating chamber c, as shown clearly in Figs. 3 and 5. These passages 15 may be closed, or partly closed, by dempers 16.

17 are a series of shafts to which the dampers 16 are attached. These shafts .extend to one side`of the drier and are provided with hand levers v18, by which they are operated. vBy having a series of passages throughout the length of the flue 13 and by providing independent ulated. The opening'k near 'theinlet is preferably somewhat smaller 'than those near the outlet, as shown in Fig. 3, to 'aid in controlling the gases. y

At the discharge end of the drier is a stack 19, which communicates withl a ,flue 20, which, in turn, communicates with the outlet ,end of the combustion chamber of the kiln 21, Fig. 6, in, the present instance.

dampers for the fines, theflow of the hot gases into the drier can be reg-H 22 vis a stack at the inlet endof the drier.

Extending through tnecirculating chamber c, below the series of fans 8, are a series of lues 23 of comparatively large diameter-- These flues 23 communicate with the stacks;

19 and 22, as shown. vProjectmg from each side of the teck 19 is e, header and coml munieeting. with these headers are tiues 25,

Ywhich extend through the upper iportion of each dryingchemher wand-b. Each set of ues communicates with e header 26 irma-ted 'within the drying chamber at the feed end. Each` header 26 communicates with the Steck 22 through v) ipes 27 and 28. f It will nemen that, hy this construction7 the products of combustion pass through thel iu'es`20 and 25 and that the air in circule!A tion in the drier is heated hy coming in Contact Vith thefthuis."4 Only the het genes: from; the cooling zone'n the kiln come in dire tleonteet with the. hrieks being died. I ...Prnti instance, 'the 'ears Gi are pnhedeinto the drier by hydraulic pushing :'izparatus 30 located between the tracks 5 et the eed end of the drier. Eeielr pushing apperatne. consists of e. cylinder 3i, a head 32 honi-lign plunger adapted to the'eylinder, end' limi/3 33 for the heed. On the head 32 "s .it pl'voted pusher 3e eo arranged ae to engage the rear of eem: .whenraised and eapebleot being tilted when e eer is moved over the pushing apparatus. The meehenism is shown clearly in' Figs. 2 and 4. it Vwill he nnderstoodthet the eylindermay be connected with e pump or other power Lip- .peretue f i 'il he notedy that the fons', or other it Wi 4suitable eppiienoesrare loeetedi in the fines connecting the eooling zone of the kiln withx 'the interior of the drier end the pipes leedher; Iand ing from the combustion chamber ot' the kiln communicate ,with ythe flue tubes ot the drier. The fans arti/.indicated at 35i and 36., Fig. 6. v i

vWhiie uur improved drier is described being connected, with :i lciln for haking. bricks, it will he understood that the :fines me 4he connected 'Y with other vapparatus wit out departing from the spirit of the invention, es the drier een he used for drying other articles. a

At each end of the drying chambers' of the drier fire doors, which can he manually operated. The doors at thc delivery endu of the drier me be pushed open by the eers as they ere oreedr out m the drier by Sueeeeding cars.

claim: i i

1. The combination in nv drier,/of e drying chamber; moans lfor cironleti-ng air in said chainher; n flue communicating directly with the lower portion of the cl-uimher; :i series of tiue's extending through the upper portion. hut not communicating therewith; and means, in the ehenil'icr, for supporting the. articles to he dried, seid first mentioned flue admitting heated eir tothe driernnd the other iuegi 'radiating heat derived from the produetelof combustion passing through theiues.`

2. The combination ofeL drier having' a meinen drying chiimher; means lor traversing arli- 'cles to he dried througlrtlic chamber;4 means foroirculutiug air iu the 'chumhorz u hot air [lue connuunicuting directly with thc drying chzimher through :i series, ul' pesszigcs; dempers in Suid passages; und u series of' heating lines extending through the upper portion of the drying chamher for the pus- Huge of Aproducto oi' combustion und indirectly heating the drying chumher.

"3. l`he combination in u drier. ot' n cusing ;4 two longitudinal partitions separating the (fusing into u centrul ciri'zulii'ling churnher land side drying rhnmhers; passages in the partitions for the circulation of nir;

means for cirruhiting the nir; longitudinal fines .extendil-ig through the casing in the path ol' the nir in circulation; end u flue communicating with the lower portion of the drier for the introduction of' lient/ed air. yl. The mmhinution in u drier. of :i eesing; two longitudimil` partitions separating the using into :i central circulating ehemhcr and iside drying.,clianibers; tracks extending througlu the drying Chambers for cnrs carrying articles to he dried; n hori- '/:ontal partition in the upper portion of the .teirculuting chamberharing fen openings therein.; time located in the openings; menne for driving the tune, said longitudinal pertitlonel having openings to ullow for the iree circulation of oir;` loi'igitudinel lines in-,theupper portion oi' `each drying chainlongitudinhl tlueis in the circulating 'Whemher helow the lfansf The conihinetion in e drier, ot n easing; two longitud'iniil partitions uSeparating 'the casing into'ii 'centralcirculating ehemher und side drying cheinher;` trucks eX- tending through the drying -iheinhe'rfs for cursy cnrnying articles to he dried; a horizontal partition inthe upper portion of the circulating chamber haring .fun openings therein funs .located in the openings; means for driving the funs, said.longitudinel'pertitions having openings `to allow for the tree `firculiition ol' nir; longitudinal ilues in the upper portion of euoh drying chamber; longitudinal ilues in the circulating ohnmher helow the funs; und :i 'longitudinal flue under the center oi the drier communicating Witl. the circulating chamber for. the introduction oi' heated nir. y

(i. The romhinat'ion in u, drier, of a casing having two longitudinal partitions therein dividing the easing into n central circuhiting chamber und side drying chiunhers; means for conveying n'ieterial to be dried `through lthe drying chilmhers; a seriesv of ansdfor circulating oir in the casing; means for' :ulmitting heated nir to' the interior-ot the easing; il scriesoi" lonV gitudinnl luos in the up ier portion of each drying chamber; e .fieries of'iiue in the circulating chandler; e. .einen` et @emesse each end of the drier communicating with the ues extending' through bthe circulate ing ehamher'; and 4headers at eachI end of -side of the drier for opereting the dempers. 2o

ing;

8. The eombination in e, drie-r, of a. caetwo @lign-,mimel` partitions therein separating the casing into three chambers, therside chambers being the drying chambers und the ICent-ral chamber being a eirc-ulating Chamber; circulating fans in the last mentioned chamber; upper and lower .openings in the partitions for the free eiroulation of air; u fiile extending ongitudinniiy" .under the center of the drierend communie-ating 'at intervalle with the circuiatng chamber and with the cooling zone ofe kiln; fines extending longitudinaiiy through the upper-portion of each of the drying chambers; a` series of. central ues extending through the circulatinq chamber; a stack connected .at one end with said iues und with the combustion chamber-of a kiin;

rend a stack communicating with the oppo-` site end of said iues.

. WALTER. M. eemimnfrz.

- i EL-Wooo B. AYRES.

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