US1166175A

US1166175A - Continuous-process coke-oven.

Info

Publication number: US1166175A
Application number: US3396815A
Authority: US
Inventors: James A Bishop
Original assignee: Individual
Current assignee: Individual
Priority date: 1915-06-14
Filing date: 1915-06-14
Publication date: 1915-12-28
Anticipated expiration: 1932-12-28

Description

J. A. BISHOP.

CONTINUOUS PRocEsscoKE OVEN.

APPLICATION FILED JUNE I4, 1915.

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Il -JI 1. A. BISHOP. :oNTlNuous PROCESS coKEovEN. PPLICATION FiLED 1UNE14| 1915-.

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CONTINUOUS PROCESS CUKE OVEN.

APPLICATION FILED JUNE I4. 1915. i

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I LEN/@wmf i mmm* iwfp JAMES A. BISHOP, OFAMASCOUTAH, ILLINOIS.

CONTINUOUS-ROCESS COKE-0VEN.

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Specification of Letters Patent.

Patented Dec., 2d, imita.

Application filed .Tune 14, 1315. Serial No. 33,968.

To all whom t may concern.'

Be it knownthat I, JAMES A., BISHOP, a citizen of the United States, residing at Masccutah, in the county of St. Clair and Sta-te of Illinois, have invented certain new and useful Improvements in Continuous-Process vCoke-Ovens, of which the following is a specification.

The present invention has reference to certain improvements in coke ovens of that general type in which the coking operation is continuous as distinguished from the type in'which separate charges of coal are individually coked. The invention has to do, among other things, with the general form of the oven, the manner in which the same is heated, the manner in which the coal is introduced into one portion of the carbonizing chamber, and the manner in which it is removed from another portion thereof.

One of the objects'of'the present invention `is to provide a` continuous process oven of such form and construction'that the coal can be very rapidly coked, so as to reduce the coking period to a comparatively short time.: This will increasethe tonnage capacity of aplant of given size as compared to itsy capacity when operating at a lesser coking rate.

Another object is to provide means for securing a kuniform distribution of the coking material throughout the carbonizing chamber, insuring, at the same time, a uniform and regular travel of the material from the point ofinlet for the raw material to the point of delivery for the coked product.

Another object of the invention is to pro vide means for continuously and perfectly cooling the distributing device, so that the same will not` be injured or` rendered in: operative, by reason of the high temperature existing within the carbonizing chamber.

Other objects and uses of the invention will appear from a detailed description of the same which consists in the features of construction and combinations of parts hereinafter described and claimed.

yIn the drawings, Figurev l is a vertical section through a constructionof oven embodying the features of the present invention, the discharge port being partially open; it being a section taken on line 1 1 of Fig.

2, looking in the direction of the arrows;

FigLQ is a horizontal section taken on line i :2 2 of Fig l, looking in the direction of the arrows; and Fig-3 is a horizontal section taken on line 3 8 of Fig. l, looking in the direction of the arrows.

Referring to the several figures, the particular construction of oven illustrated may be considered as being made up from three divisions broadly numbered l, 5, and 6, respectively. rIhe division 4 is in the, nature of a foundation for-the structure, and at the same time it accommodates certain of the operating mechanisms. lllhe division 5 may be termed the heating di-vision, and it is in this division that the heat is generatedvfor heat- -ing the carbonizing chamber. The division 6 is the carbonizing division, comprising the carbonizing' Achamber and the distributing device or mechanism contained therein.

I have thus described the apparatus as sub-divided into three divisions merely for purposes of convenience, and it 'will be understood that thef mechanisms shown in changed between the different divisions, or`

certain of the divisions may even be eliminated entirely. The carbonizing chamber has-the ioor 7 and the dome-shaped roof 8. As shown inFigs. 2 and 3, the carbonizing chamber is preferably circular in form, in-

asmuch as a simple type of distributing'de- .vice is one which rotates about a` yvertical axis. rIhe heating division is shown 'more in detail in F ig. 2. It is provided around its periphery with a number of furnaces or grates 9, wherein are generated the heating gases by means -of which the .carbonizing chamber is heated effectively for the distillation of the coal. Leading from the furnaces 9 are heating passages which surround the floor, sides, and roof of the carbonizing chamber, so as to heat the same as uniformly as possible. Invthe particular arrangement illustrated, there are provided in the heating division a plurality of radial passages 10 and a plurality of radial passages l1, there being as many of each of the passages l0 and l1 as there are furnaces 9. The heating gases from each furnace 9-travel inwardly along the corresponding passage l0, and lthen turn and tra-vel outwardly along the corresponding passage 1l, the passages 10 and l1 being connected together in pairs ends, as best shown in Fig.,2.'

' In the roof o f the structure, there are a plurality of radial passages 12, or a single at their inner :the yseveral divisions maybe largely interf large space 12, depending upon the form of construction adopted, having its outer portion adjacent to the periphery of the carbonizing chamber and having its inner portion communicating with a spent gas iiue 13. The outer ends of the passages 12 communicate by means of vertical passages 14 in the peripheral wall of the carbonizing chamber with the outer ends of the passages 11. From the foregoing, it will appear that the heating gases, after having traveled toward and from the center of the structure in theheating device, thereafter travel up and' over the carbonizing chamber to the spent gas delivery flue 13. Thus, the arrangement is such that the carbonizing chamber 'is heated on its bottom, its side walls, and

its roof.

The coal is introduced atthe central portion of the carbonizing chamber, and is v,caused to travel toward the periphery thereof, being discharged at a suitable point on the periphery after having remained in the i shown in Figs. 1 and 3.

carb'onizing chamber the desired interval of time. thedistributing Ydevice 14a which is best The same comprises a vertical axial member which carries a plurality of radial arms, the radial arms being provided with scrapers or shovels whose function is to cause the carbonizing mass to travel toward the periphery and toward the discharge point.

The coal is delivered into the carboni-Zing chamber through a central opening or pocket 15. Leading up to this pocket is a tubular passage 16` within which is shown the screw conveyer' 17. The conveyer transfers the coal from a hopper 13 to the pocket 15. The distributing device comprises the vertical axial member 19 which carries a plurality of radial distributing arms 20. Each of these arms is provided with shovels 21 set at different-radial positions onthe arms, ,so that, as 'the distributing device rotates, the scrapers will transfer the coal successively farther and farther from the center, and thus eventually deliver it to the point of delivery. To insure this result, the shovels are so placed as to form a` spiral,

- as shown in Fig. 3, instead of being placed yon tangents to circles drawn about the cen- For this purpose, I have provided of cooling wa'ter to the chamber. From the chamber, this cooling water [lows radially outward through the pipes to the members 26. The upper axial portion 2T of the distributing device is also hollow, but does not coi'i'imunicate directly with the chamber 25. 0n the other hand, correspoinling to each of the arms 20 there is a pipe 28 leading from the member 2U up and into communication with the member 2T, so that the cooling water will be -delivered through the pipes 2S to said member.

Extending upward from the foundation of the structure and through the heating division is a bearing member 29. This bearing member has a flange 30 which -is supported by the foundation and serves to transmit thrust from the member 2S) to the foundation. The hollow cliambered ineinber 25 rests on the upper end of the member 29, which thus provides a bearing on which the distributing device may rotate. A stuliing box 31 between the member 2S) and the hollow axial member 19 serves to prevent a downward flow of gas from the carbonizing chamber. Anysuitable means may be provided for rotating the member 19 and therewiththe distributing device. For this purpose, I have illustrated a worm gear 32 driven by the worm 33. A pipe 34 delivers the cooling water to the 4axial member 19, a stuing box 35 providing a water tight connection between these parts.

Leading upufardly from the roof of the carbonizing chamber is the distillate gas delivery pipe 36. This delivers the distillate. gases to' the pipe 37, from which they may be carried to ahy-product recovery apparatus, or ,to any other point of disposition desired. The upper hollow axial member 27.13rojects above the pipe 3G and communicates with the cooling water delivery pipe 38. The stuffing boxes 39 and 4() prevent a leakage of cooling water at the point of connection into the pipe 38 and prevent a n leakage of gas at the point of exit from the pipe 36, respectively.

At any suitable portion in the periphery of the carbonizing chamber. there is a coke delivery .opening 41, best shown in Fig. 1.

, A downwardly extending chute 42 conveys the coke from this opening into a receiving chamber 43 from whencethe coke may be removed through the door 44. By luting in the door 44 soas to close the chamber 43, coke may be collected from an interval of run, and cooled preparatory to removal into the atmosphere, A horizontally traveling door 45 is provided for closing the chute 42. This door has the threadedsleeve 46 work- `ing in a bearing 47 within which it may travel horizontally and without rotation. A crank 48' on the 'threaded rod 49 working with respect to a stationary member 50, serves to force the threaded sleeve 46 back idear/5 a sight hole or opening, through which the operation'of the coking process may be 0bserved. The construction illustrated includes a vtile 53 extending through the side wall ofthe carbonizing chamber and carrying at itsouter end a cap member54. `This cap member hasthe outwardly extending neck 55 which closed by means of a w'indow of mica 56. `By looking in through the mica window, the operation of the carbonizing process may be observed, and also the operation of the distributing device. A partition 57 is clamped between the tile and the cap member. rIhis partition has a door seat 58 extending at an angle of lapproximately degrees to the axis of observation. The observer ylooking through the window' 56 also loo-ks through the seated opening 58 to the interior of the carbonizing chamber.l

A door 59 may be carried into engagement with the seat so as to close theopening thereof by means of the threaded pin 60 `profided with the hand wheel Gl. Y By means of this construction, the door may be closed at all times except when' it 'is desired to make an observation, thus preventingl the blackening of the mica window. While I have shown the pin G0 as lying in the same horizontal plane with the aXis of observation, still it will'be understood that this pin might lie in any other plane desired, and that, as far as this feature of construction is concerned, the main point is that the door 59 travels along an axis lying at an angle tothe axis of observation. y.

-`While I have herein shown and described only a single-embodiment of my invention,

still it will be understood that I do not limit f y myself vto the same, except as I may-dose in f the claims, but that I contemplate within the sco-pe of my invention any equivalent constructions operating in equivalent manners to produce equivalent results.

-I claim: j

1. In a continuous process coke oven the co-mbinationwvith a carbonizing chamber and means for heating the same,isaid chamber having a central pening in its floor for v i the supply of raw materialand a peripheral opening yfor the delivery of coked material,

of alrotary element, mounted within said chamber, apluralityv of radial arms on said element,*and shovels mounted on the arms land driven thereby, each shovel being mounted at an angle to the tangent of the .Circle4 in which it rotates, and sald shovels being mounted at different radial positions, whereby the coking material is transferred from the center of the ioor toward the periphery of the carbonizing chamber.

2. In a continuous process coke oven the combination witha carbonizing chamber, and means for heating the same, said chamber being provided witha central opening in its floor for the supply of raw. material anda peripheral opening for the'4 delivery of coked material, of a rotary element mounted in the carbonizing chamber, a plurality of ,shovels located at different radial positions from the rotary element, each shovel having its effective planelying at an angle to the tangentof the circle in which it rotates, and driving connections from therotary element to the-shovels, w'hereby'the shovels co operate with each otherto regularly transfer coking material from the central opening of the ioor to the peripheral opening during the rotation of. the rotary element.

3. In a continuous process coke oven the combination with a carbonizing chamber and means for heating the'same, said chamber being provided with a central opening in'its floor for the supply of rawy material -and with a peripheral opening for the deV livery of coked material, of a rotary element mounted within the carbonizing chamber, a

- plurality of :shovels within thecarbonizing chamber, and operative connections from the rotary element to the shovels for the purpose of driving the shovels in such manner as to secure a transfer lof the coking material from the central opening of the iioor to the peripheral opening.

, 4l. In a continuous process coke oven .the

combination with a carbonizing chamber and means forheating the same, there being a central opening in its floor and a periphera'lopening in communication with the in'- terio-r -of said chamber, of a rotary .element mounted within said chamber, a pluralityA of shovelswithin the chamber, each shovel lyl10 ing at an angle to the tangent of the'circle in which it rotates, and 'operative connections from the rotary element to the shovels frthe purpose of driving them, Vwhereby material introduced at 'one of said openings 115 is t'ransferredfby the shovels to the other of said openings.

' 5. In a continuous process coke oven the it combination with a carbonizing chamber and means for heating the same, of a central 1z0' having a plane floor, and means for heating said chamber, there being a central opening in its floor for the supply of raw material to said chamber and a peripheral opening for the deliveryof coled material from said chamber, of means for continuously feeding raw material into the chamber through the central opening of the fl'oor, and means for transferring said material in a relatively .thinlayer over the floor of the earbonizing chamber to the delivery opening. l 7. In a continuous process coke oven the combination with a carbonizing chamber having a plane Hoor, and means heating said chamber, there being a central pocket in the floor of the carbonizing chamber, and there being an opening for the supply of raw material into said pocket and a peripheral opening for the delivery of coked material from the chamber, of means for continuously supplying raw material into said pocket, and means for continuously transferring the coking material in acomparatively thin layer across the floor of th-e carbonizing chamber from'the pocket to the delivery opening.

8. In a continuous process coke oven the 1 combination with a carbonizing chamber having a subtantially plane floor, of heating lues beneath said floor, heating fines in the roof of the carbonizing chamber, connections between the first and second mentioned heating fines, furnaces forl the combustion of fuel for the supply of hot gases to the first mentioned lues, there being a central opening in the floor of the carbonizing chamber and a .peripheral opening connecting with the interior of the carbonizing chamber, means for supplying raw material to one of saidI openings, and means for transferring the coking material `across the Hoor of 'the c arbonizing chamber in a relatively thin layer to the delivery opening.

9. In a continuous processv coke oven the combination With a circular carbonizing chamber having a substantially plane floor and' a dome-shaped roof, and means for heating the floor and roof, there being a central pocket in .the floor,`and there being a peripheral opening for the delivery of coked 'material' from the carbonizing chamber, of 4 means for supplying raw material into said pocket, a tubular rotary member extending vertically through the pocket and through the carbonizing chamber, the tubular openingq'thereof being closed at a point Within the carbonizing chamber, a plurality of tubular radial arms mounted upon and driven by said rotary member, tubular-braces extending from the outer ends of said arms to the upper portion of the rotar)7 member, and

shovels mounted upon and,driven by said arms, the tubular openings of the rotary member, arms and braces, being relatively in communication with each other in such manner as to permit the circulation of the cooling medium from the lower portion of the-rotary member through the arms and,

braces to the upper portion of the rotary member.

l0. In a continuous process coke oven the combination with a carbonizing chamber .having a substantially plane 'loor and having a dome-shaped roof, and means for heating said vloor and roof,'thcre being a central pocket in the ioor, and tlierc'being a peripheral opening for the delivery of coked material from the carbonizing chainber, of means for supplying raw material to the pocket, a rotary member extending verticallythrough the central portion of the pocket and carbonizing chamber, a plurality of radial arms connected to and driven by the rotary member, and shovels on said arms, the rotary member and arms being of tubular formation and relativelyso intercon nected as to permit the circulation of cooling medium through the rotary member and through the arms, and shovels mounted upon and driven by the arms for the purpose of transferring coking material from the central pocket to the peripheral delivery opening.

1l. A transferring device for the radial I transfer of material across a substantially yplane floor, comprising a vertical tubular