US1657138A - Combined drying and burning kiln - Google Patents

Description

H. R. STRAIGHT COMBINED DRYING AND BURNING KILN Jan. 24, 1928.

2 Sheet Jan. 24, 1928.

H. R. STRAIGHT COMBINED DRYING AND BURNING KILN Filed April 1926 Sheets-SheetZ Patented clan, 192d,

sierra STATE near nanvnn B. STRAIGHT, or Anna, town.

GOIMBINED DBYIJEQ G fill) BURNING EILN.

Application fi'cd April 14,

This invention relates to improvements in and burning of ceramic Wares. ,3 ct of my invention is to so construct andarrange a kiln that the drying and hitu'ning kilns may be so combined that the plastic or undricd ivare may be placed on zolc cars and first passed through the di ig kiln, and then advanced. through the burning kiln in a progressivemanner, and provide in connection therewith means whereby the said cars may be partially filled with drain tile or similar Ware and then dried, after which other plastic Ware may be placed on top of the dry Ware and then passed through the remainder of the drying kiln, ter Which it may be advanced through the burning kiln, thereby providing means whereby the cars may be tilled to a larger capacity, before entering the burningkiln, than would otherwise be permitted if the cars were completely filled and then dried, as the iveight of the material on the top portion of thecar vould crush that in the lower part. I find in burning pressed brick and the like that this precaution is not necessary, as the brick in the lower part otthe car will support the entire Weight of the stack, even it it is all stacked in an undried condi' tion.

It is, therefore, a further object of my invention to provide means whereby pressed lnJick and the like may be introduced at a later point of admission to the drying kiln, thereby eliminating the necessity of operating the first stage or stages While burning this class of ware.

A further object is to so arrange and construct the kiln and apparatus for delivering i e thereto, that a single pug mill may be utilised to feed a number of tile machines,

' one of which is located at a point adjacent to the first point of delivering the tile to the drying kiln, and another at a second point of delivering tile to the drying kiln and etc, so that tile may be fed to the kiln cars at either one or several of these points of delivery. j

A further object is to provide one or more b ick machines located atthe second point of deliveryiso that the cars maybe loaded with were at this point anddelivered to the second drying kiln. H a

A further object is to provide two sets of drying and burning kilns arranged in a parallel manner with each other, and to provide 1926. Serial no. 101,9es.

means whereby the tile or brick machines of one set of kilns may be utilized to furnish material to either one or both of said sets of kilns, so that it one set of tile machines is out oi. operation, the other tile machine may be made to supply both sets o'fkilns.

A, further object is to arrange the sets of kilns in such a manner that a track arrangement may be provided ivhereby freight cars may be lilled easily and economically from either one or both of said sets of kilns.

it. further object is to provide in a drying kiln improved means for circulating the drying med um through the Ware.

My invention consists in the construction, arrangen'ient and combination of the various parts of the device, whereby the objects contemplated are attained, as hereinafter more fully set forth, pointed out in my claims, and illustrated in the accompanying drawings, in which:

Figure 1 is a plan view of my improved combined drying and burning kiln.

Figure 2 is a detail sectional view taken on the line 22 of Figure 1.

Figure 3 is a detail sectional view taken on the line 3-3 of Figure 1.

Figure 4 is a detail sectional View taken on the line 44- of Figure 1.

Figure 5 is a segmental, longitudinal, sectional view taken on the line 5-5 01": Figure 1. j s Figure 6 is an enlarged, detail, segmental, sectional view showing a tile supporting floor, taken substantially on the line 66 of Figure 52.

Figure 7 is a detail sectional view taken on the line 7'? of Figure 1.

Figure 8 is a detail sectional View taken on the line 8-8 oi. Figure 2.

My improved kiln construction comprises a drying kiln 10, a second drying kiln 11 and a burning kiln 12, all of said kilns beingin the form of anarched tunnel and arranged in common alinement. The drying kilns 10 and 11 have their adjacent ends spaced a considerable distance apart, While the adjacent ends of the kilns 11 and 12 are joined. The bottoms of all of said kilns are provided With tracks 13 for supporting Ware bearing cars 14;. The upper surface of each of the cars 14 is provided Witha fireproof floor construction formed of a series of transversely arranged blocks 15. The adja cent edges of said blocks are provided with lit) grooves 16 so arranged that when the blocks are laid side by side on the said cars, transversely arranged passages will be provided, which are open at each end and top. The lloor so constructed that tile 17 may be stacked thereon in a vertical manner so that vertical passages may be provided through the stack of were which will communicate with the horizontally and t 'ansverscly arranged passages in the floor.

Supported at each side of the *ars 14 and resting on the floor of the kilns 10 and 11 I have provided conduits 18, the top faces 01" Which are slightly below the horizontal pas sages through the floor blocks 15. Arranged above each of the conduits 18 is a second conduit 19 which has 1ts inner SIClG open and in alineinent with said horizontal passages. The upper surfaces of the conduits 19 are provided with a series of upwardly extending nozzles 20, Whilethe upper faces otthe conduits 18 are also provided with a series of upwardly extending nozzles 21, the nozzles 21 beingarranged beneath and in alinement with the nozzles 20. The conduits 18 are connected by means of a transversely arranged conduit 22, one end of which extends upwardly along one side of the kiln 12 adjacentto the kiln 11 and has its upper end operatively connected with a blower casing 23, which is provided with a suitable blower mechanism not illustrated, and which may beoperated by a suitable 1notor 24.

The casing is provided with an intake pipe 25 which may be connected with the interiorof the burning kiln 12 at various convenient points in the cooling end of said kiln, so that heated air may be drawn from said kiln and delivered to theicondnits 18 under pressure, which will be discharged through the nozzles21 and into the nozzles 20, thereby causing an, induced air current through the passages lti and downwardly through the vertical passages of the ware, which will be discharged upwardly between the sides of the Ware and the inner face 01 the Walls of the kiln in the manner as indicated by the arrows in Figure '2, thereby providing means for creating a very uniform circulation of air through said ware.

In the top of the kilns 11 andlO I have provided a series of longitudinally extending pipes 26. The pipes of the kiln 11 are mounted in an end portion 27 above. the were in the cars and communicating with the interior of the burning kiln 12. The opposite ends of the pipes 26 of the kiln 11 are mounted in a, header 28. A similar header 2.9 isprovided for the kiln 10. The said headers 28 and 29 are connected by a pipe 30. The opposite ends of the pipes 26 of the kiln 10 are provided with upwardly extended portions 31 extending through the top of said kiln, thereby providing means whereby heated air from the kiln 12 may he passed through the top of both oil. the kilns 10 and 11 and cause the space above the wore in said kilns to be heated. The blast from the nozzles 20 and the circulation formed thereby cause said heated air or 12 similar to the ones above described and parallel therewith, said kilns being spaced apart a consideral'ile distanre so that a double railroad track may he placed between said kilns, and also tracks 33 and till placed between said railroad tracks and the corresponding kilns. The said tracks 33 and 33 are designed to receive the kiln cars by means of suitable transfer cars 34 which are mounted on transversely arranged tracks and 35. By this arrangement it will be seen that loaded kiln cars from either the kilns 1.2 or 12 may he i'noved to the respective tracks 33 or 33*, which run parallel and adjacent to the tracks 32, so that Ware may be easily and quickly loaded from said kiln cars directly to the freight cars with a minimum amount 0t labor.

Located near the outer Wall 01 the kiln 10 and at each end, I have provided a tile niaehine 36, both of which are designed to receive material from a pug mill 37 located between said tile machines. Said tile machines and said pug mill are simply illustrated diagrammatically, as the details oil. construction of the machines fol-1n no part of my present invention. In alineinent with the delivery end of each of said tile ll'il'uilllluls 36 are conveyors 38 and 3!... The conveyor 38 has its upper run lomled slightly above the top surtareolf the cars .14 and l t, the lower run of said conveyor extending hcneath said cars. irny suitable lllflilllf-l lfltly be provided for mounting and operating said conveyors, so they may be caused to rotate in either direction.

By this arrangement it will he seen that tile from the left hand tile machine, as shown in Figure 1, may be delivered to the conveyor 38 and received from said conveyor 38 and placed on the bottom of the car 14 or 14 which should be partially loaded. after which the said partially hauled. caraare moved through the kilns Ill and 10 and to a point between said kilns l0 and 10" and the adj accnt kilns 11 and .11 respectively.

The conveyor 39 is mounted insuch a manner as to pass above this first tier of tile, in the manner clearly shown in Figure 5. Tile may then be delivered from the sec ond tile cutter 36 to the conveyor 39, and from said conveyor 39 to the cars 14 or 14 till / brick machine,

At a pint adjacent to the outer walls of the kilns 10 and 11 and located between their adjoining ends, I have provided a series of brick machines machines being and 11*. Each of said brick machines is provided with a conveyor l-l. In the drawings I have illustrated the brick machines as arranged in groups of three. The conveyor d1 of the forward one of said brick machines is longer than the conveyor ell of: the second and so on in the manner clearly illustrated in Figure 1, so that material from theouter one of said brick machines may be delivered to the inner edge of the platform of'the cars ll, while the material from the second tile machine may be delivered to the center of said cars, and the material from the third tile machine delivered to the outer edge of said platform, The operator stands on the carplatform, while laying the ware, which is arranged in the manner illustrated at the point as.

By this arrangement it will be seen that I have provided means whereby the ware may be easily and quickly placed on said cars with a minimum amount of energy. The conveyors ll are pivotally mounted relative to the brick machines in such a manner that they may be elevated to a vertical position when notin use, as shown by dotted lines in Figure 7, to thereby permit the cars to be loaded with tile as previouslydescribed.

In connection with the loading of the tile from the conveyor 39, it should be mentined that a platform 43 is provided on which the operator stands, said platform be ing located above'the first layer of tile, as clearly shown in Figure 5. This platform is detachably and slidably mounted on suitable supports l4, so that itmay be moved to a convenient position adjacent to the stock being piled, If the operators are stacking the ware faster than the advance of the ware bearing cars, the platform 4:3 may be moved.

rearwardly to a position partially under the.

upper run of the conveyor 39, or vice versa.

Thus itwill be seen that I have provided pair of combined drying and burning kiln, said combined kiln being arranged in pairs in such a manner that the said pair of kilns may be economically operated at a minimum amount of labor and power.

It will further be seen that each set of kilns may be provided with its own set of mills, which are provided with suitable deafter which itmay be moved through 40, a similar set of briclr provided for the kilns l0.

livery conveyors so arranged that the mills forfone set of kilns may deliver material to either set of kilns or to both, sets of kilns, thereby avoiding delays on account of one of the sets of mills being inoperative.

It will further be'seen that I have provided an improved circulating system for the drier kilns.

I claim as my invention: a

1. In a device of the class described, a series of drying kilns and a burning kiln arranged in common alinement, said drying kilns being slightly spaced apart, said burning kiln being arranged adjacent to the outer end of one of said drying kilns, means for conveying ceramic ware through all of said kilns, means for delivering plastic-ware to said conveying means atthe outer end of one of said drying kilns so that said conveying means may be partially loaded, and means. for delivering plastic ware to said conveying means at a point between two adjttCtlDt drying kilns so that the said conveyingmeans may be completely loaded.

2. In a device of the class described, combined drying and burning kilns, means for conveying ceramic ware through all of said kilns, means for delivering plastic ware to said conveying means at a point adjacent to the receiving end of said drying kiln, and means for delivering plastic ware to said conveying means at a point between the re ceiving and delivery ends of said drying kilns.

3. In a device of the class described, a pair of combined drying and burning kilns arranged parallel and spaced apart, means forconveying ceramic ware through each combined drying and burning kilns, means for conveying plastic ware to either of said conveying means said drying kilns, and means for delivering plastic ware to either of said conveying at the receiving end of means at a point between the receiving and delivery ends of said drying kilns.

4:. In a device of the class described, a pair of drying kilns arranged parallel and spaced apart, mean-s for conveying ceramic ware through each of said kilns, means for conveying plastic ware to either of said conveying means at the receiving ends of said kilns, and means for delivering plastic ware to either of said conveying means at a point between the receiving and delivering ends of said drying kilns.

5. In a device of the class described, a pair of drying kilns arranged parallel and spaced apart, means for conveying ceramic ware through each of said kilns. means for conveying plastic ware to either of said conveying means at the receiving end of said kilns, means for delivering plastic ware to either of said conveying means at a point between the receiving and delivering ends 10 of said kiln,

15 plastic material to of said drying kilns, and means for delivering plastic Ware delivering means. i

6. In a device of the class described, a pair 5 e of drying kilns arranged parallel and spaced apart, means for conveying ceramic ware through each of saidkilns, means for conveying one form of plastic materialto either of said conveying means at the receiving end means for delivering the same form of plastic material to either of said conveying means at a point between the receiving and delivering ends of said kilns, and means for delivering another form of either of the last receiving points of said kilns. 7. In a device of the class described, a pair of drying kilns arranged parallel and spaced apart, means i 29 ware through eachof said kilns, means for conveying one form of plastic material to either of ceiving ends of said kilns, meansi'or delivering the same .form of plastic material to either or both of said to either ofsaid conveying means at'a point between the receiving and delivering ends of for conveying ceramic said conveying means at the re said kilns, means for delivering another form of plastic material to either of the second receiving points of said kilns, anril means for delivering plastic material to, either or both of said delivery means.

8. In a device of the class described, slightly spaced andadjacent drying kilns, means for conveying ceramic Ware through all of said kilns, means for delivering plastic 35 Ware to said conveying means at a point adjacent to the receiving; and of onev of said drying;- kilns, and means for delivering plastic Ware to said conveying means through the space between said kilns. 4n

9. In a device of the class described, a drying kiln, means for conveyingceramic ware through said kiln means for delivering plastic Ware to said conveying means at a point adjacent t'othe receiving, end of said drying kiln, and means for delivering plastic ware tosaid conveying means ata point between the receiving and delivery ends of said drying kiln.

Des lirloines, Iowa, April 8, 1926.

HALVER STRAIGHT.

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