US1197306A

US1197306A - Recuperative foundation for coke-ovens.

Info

Publication number: US1197306A
Application number: US69996A
Authority: US
Inventors: Arthur Roberts
Original assignee: Individual
Current assignee: Individual
Priority date: 1914-12-04
Filing date: 1916-01-03
Publication date: 1916-09-05
Anticipated expiration: 1933-09-05

Description

Patented ifiept. 5, 1916.

3 SHEETS-SHEET l.

A. ROBERTS.

RECUPEB-ATIVE FOUNDATIONS F08 COKE OVENS.

APPLICATION FILED IANI 3, 1916.

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l llllllliAlll I I A. ROBERTS. RECUPERATIVE FOUNDATIONS FOR com overus.

APPLICATION FILED JAN- 3. 1915- iiqirlfiwfia Patented @yept. 5 1916.

3 $H|EET$*SHEET 2.

1 1211... 11, liii r- A. ROBERTS. RECUPERATIVE FOUNDATIONS FOR OKE OVENS.-

APPLICATION FILED IAN. 3.1916.

Patented Sept. 5, 1916.

3 SHEETS-SHEET 3.

MN QQ 9m ARTHUR ROBERTS, OF EVANS'ION, ILLINOIS.

BiECUlERATIVE FOUNDATION FOR COKE-OVENS.

tra nee.

Specification of Letters Patent.

Patented Sept. 5,1916.

Original application filed December 2,1914, Serial No. 875,503. Divided andthis application filed January 3, 1916. serial No. 69,996.

To all whom 2'25 may concern Bedt known that I, ARTHUR Ronnirrs, a citizen of the United States, residing at Evanston, county of (1001?, and State of Illinois, have invented certain new and use ful Improvements in liecuperative Foundations for Coke-Ovens, of which the following is a specification.

This application is a. division of my copending application for Letters Patent of the United States on improvements in recuperative coke ovens, Serial No. 875,508, filed December 4, 1914. In that application, there is disclosed a coke oven construction in which recuperator Walls are placed between the adjacent heating walls of the ad jacent 'coke ovens of a bench, and that application relates genenlly to constructions in which the said recuperato'r walls are independent of the heating walls to the extent that they may expand and contract in dependently of the heating walls, and to the extent that they may be constructed or maintained as independent elements or portions of a bench of coke ovens. That application also disclosed a construction of foundation and waste gas fiues wherein and whereby heat may be recuperated in said foundation from the waste gas fiues.

This application relates to a type of foundation and flue construction wherein and whereby the waste heat contained in the gas traversing the lines may be recuperated in the walls orbody of said lines and returned to the burners through the medium or preheated air.

The recuperator principle is onein which heat is'constantly delivered from hot gases through a wall or the like to the air or gases traveling separately or independently of the hot gases from which the heatvis extracted. That is to say, there is a substantially constant input of heat units into one portion of the structure, and a corresponding, substantially simultaneous, withdrawal of heat units from the other portion of the structure. The rate at which. the heat will e delivered into or withdrawn from said structure depends, among other things, upon the intimacy of contact of all portions of the heat carrying medium, or the heat extracting medium, with said structure.

I have dlscovered the fact that, 1f the air or other gas be allowed to travel in a lit substantially unobstructed manner along the structure, there will form a layer or coating of substantially inert air or gas on the surface of said structure, which layer or coating of air or gas will effectively insulate or cut off the body of the air or gas from the structure. On account of the comparatively high heat insulating quality of this layer of air or gas, the transfer of heat to or from the structure will be very seriously impeded and, consequently the recuperating capacity per unit of superficial area of the structure will be correspondingly lowered.

One of the objects of this invention is to provide one or more spent gas fines of such construction that the incoming air or gas may travel through and within the body of one or more walls of said flue .or Hues-in such a manner that the air or gas will be driven with great frequency and violence against portions of the wall construction to thereby bring all portions of the air or gas into direct and forcible contactwith the structure one or more times and at one or more points during the travel of the air or gas. That is to say, the main object of the invention is to so construct the walls of the flue that the transfer of heat into the air or gas traveling through said walls will be occasioned largely by the impingement prin ciple disclosed in my co-pending application for Letters Patent of the United States on improvements in the art ot' heating, Serial No. 48,753, which was filed August 5, 1915.

Another object of the invention is to so construct the walls of said flue that the walls can be built from a minimum number of block forms. Also to so construct said walls that they will be provided with a mesh of impingement passages contained within its body portion in combination with openings or passages suitably disposed with respect to said mesh to secure a desired transfer of air or gas to andlfrornthe mesh.

Other objects and uses of the invention will appear from a detailed description of the same which consists in the features of construction and cinnbinations of parts here.- inafter described and claimed.

ieferring' to the drawings: Figure 1 shows a plan view of a foundation for ataken on the line -l't of Fig. (3, looking in the direction of the arrows; F ig. 5 is a detailed fragmentary view of that corner of the lower portion of the foundation diagonally opposite to the corner shown in Fig. 4, and is a section taken on the line 5- -5 of Fig. 7, looking in the direction of the arrows; Fig. 6 is an enlarged fragmentary detailed vertical section corre sponding to Fig. 4, being taken on the line 6-6 of Fig. 4, looking in the direction of the arrows; and Fig. 7 is an enlarged fragmentary detailed vertical section corresponding to Fig. 5, being taken on the line 77 of Fig. 5, looking 1n the direction of the arrows. Figs. 6 and 7 may also be considered as being taken on the lines 66 and 7-7 of Fig. 1, looking in the direction of the arrows.

Referring to Fig. 2, the same is a section taken through the center portion of carbonizing chamber 8, said carbonizing chamher being one of the chambers of the bench of ovens. It will be understood that a section throu h the foundationimmediately beneath eacn carbonizing chamber would be similar to the section shown in Fig. Immediately beneath each carbonizing chainher is the transversely extending sole passage 9, and beneath each of said. sole passages is a corresponding spent gas channel 10. Each sole passage connects with a corresponding channel by means of a plurality of vertical connections 11, so that the spent gases from the heating walls of each oven collect in the corresponding channel 10.

Referring to Fig. 1, it will be seen that there are the spent gas fines l2 and 13, which extend lengthwise of the bench beneath its side portions, these fines extending along beneath the end portions of the several ovens. The

flues

12 and 13 deliver their spent gases to the common connection Ll from which the spent gases may be withdrawn in any desired manner. Each of the channels 10 delivers its spent gases to the

flues

12 and 13 by means of the down-comers 15 and 16, respectively, said'down-comers being connected to the fines by means of the openings 17 and 18. The construction thus far described is shown in my issued Letters Patent cf he United States No. 1,132,685, issued to me as inventor, March 23, 1915, and I will not describe the same at greater length at this point. Adjacent to the lower portion of each coke oven, there is a transversely extending air channel 19 from which the air is delivered upward to the various memos burners to whicn it may be connected. the particular arrangement illustrated in the drawings, each of the channels 15) delivers its air into the lower portion of a recu 'ierai'ing wall 20, the particular construction of which recuperating wall is shown in my co-pending application for Letters Patent of the United States on inuirovcmen'ts in recuperating walls, executed by me as inventor, of even date herewith, filed January 3, lSllG, as Serial No. (39,995 said application also being'a divisioh oi my co-- pending application, Serial No. 875,503 tiled December l, 19H. The various air channels 19 of the various ovens of the bench are connected togetl'ier by a pair of longitudinally extending passages 21v and 22 which extend substantially the entire length oi the bench, so that the incoming air may be equalized throughout the entire bench of ovens.

According to the features of the present invention, as particularly illustrated in the drawings herein, 1 so construct one or more of the spent gas fines that the incoming air travels adjacent to the hot gases in said lines, while, nevertheless, being isolated or cut oil from said gases, to thereby transfer a portion of the waste heat from the spent gases into the incoming fresh air., According to the features of the present invention, such heat transfer is secured by so constructing one or'inore walls of such fines that the incoming air or gas will. travel through. the body or interior portion of said wall, receiving its heatfrom the wall, and the wall, in turn, being heated by the hot gas or air traveling adjacent to it.

Figs. 2, 3, (5 and 7 show that certain oi the walls of the

flues

12 and 13 are provided' with a meshwork of horizontally and vertically .extending passages 23. In the construction illustrated. this result is accomplished by building the desired walls from blocks which have one or more horizontal and vertical faces centrally recessed, so that, when said blocks are set together, their recesses will cooperate to produce the desired mesh of passages.

Figs. 2 and 3 show the blocks in longitudinal section, whereas Figs. (5 and 7 show the blocks in transverse section. in the arrangement illustrated, I have shown both side walls of each line as being constructed from blocks oi this character, and I have also shown each fine as being provided with another central wall, constructed in similar manner. manifestly, however, any desired number of such walls might be provided in each fine, or in selected fines, or each of said selected fines might be provided with only one such wall. Tlherct'ore, while in the viirions figures l have shown a construction in. which there are two fines for carrying ed the spent gases, each ol said filler. bcing pr llf) vided with three such walls, still it will be understood that a greater or lesser number of tlues might be used, and a greater or lesser number of walls of this character might be used in each flue within which a recuperating action is desired.

Adjacent to one end of the fluelQ, there is a vertically extending pocket or chamber 24 to which fresh air or gas is delivered by means of a pipe 25. This pocket is in communication with one end of each of the recuperating walls of the fine 12. Adjacent to the other end of the due 13, and beneath the same is a transverse passageway 26 into which fresh air or gas is delivered by means of the pipe 27. The passageway 26 connects by means of risers 28 with the adjacent ends of recuperating walls of the flue 13. It thus appears that the air or gas within the recuperating walls of the flue 12 travels in the direction-opposite to the air or gas within the recuperating walls of the flue 13.

Above each recuperating wall is a longitudinally extending channel 29 into which the heatedair or gas from said wall collects. The various channels 29 above each flue are in communication with each other by means or" the cross connections 30, shown in Figs. 6 and 7, so that the heated air or gas above each flue may equalize itself from the various recuperating walls of said flue. Corresponding to each of the channels 19, a riser 31 extends upward from the connections 30 of the adjacent fines, and the heated air or gas is delivered to the channel 19 by means of said risers.

Inasmuch as the channels 19 connect together the'recuperating walls of the two lines, and inasmuch asthe air or gas within the recuperating walls of the two flues travels in opposite directions, it will be evident that an equalization of air or gas pressure will besecured, and there will also be an equalization of recuperative action in the amount of air or gas delivered to each of the channels; Such equalization would not be secured it the air or gas in all of the recuperating walls traveled in the same di rection along the length of the bench, and, therefore, it may be considered that I have provided means for causing the air or gas traveling through two or more recuperating walls to so equalize in said walls that the air or delivered to the various ovens from said walls will all be at substantially the same temperature or subjected to substantially the same amount of recuperating action.

In the several figures, the foundation pillars are designated by the numeral 32.

It will be observed from a consideration of the foregoing disclosures that I have made provision for the recuperation of heat between the gases flowing within the passages of the tunnels themselves on the one hand, and the gas or air flowing within the walls of said tunnel on the other hand. Said recuperation may be in the form either of transmission of heat from the-air or gas flowing through the tunnel into the air or gas flowing within the walls, or in a reverse direction, although in the particular construction illustrated the recuperation is from the tunnel passages to the gas or air flowing Within the walls. It will also be observed that I have provided a construction whereby the amount of recuperation may be increased beyond'that amount which would be secured merely by the recuperation. in the two opposite walls of the tunnel. Such increased rate or amount of recuperation may be seecured by the interposition of a desired number of recuperating partitions within the body of the tunnel itself, although in the particular construction illustrated I have shown only a single partition extending along the central portion of each tunnel. I claim:

1. In a construction of the class described a foundation having two parallel tunnels, each tunnel having walls, selected ones of said walls having passages for air, connections for the delivery of air to all of said passages, and connections for the delivery of air from all of said passages at selected intervals.

2. In a construction of the class described a foundation having two parallel tunnels,

each tunnel having walls, air passages within all of said walls, connections for the delivery of waste gas to the spa :e between the walls of each tunnel, connections for the delivery of air into one end of the air passages of the walls of One tunnel, connections for the delivery of air into the other end of the air passage of the walls of the other tunnel, and connections for the delivery of air from all of said air passages at selected intervals.

3. In a construction of the class described, a foundation having two parallel tunnels, each tunnel having wa-lls, air passages within selected walls of each tunnel, connections for the delivery of gas to the space between the walls of each tunnel, connections for the delivery of air into one end of the air passages of the walls of one tunnel, connections for the delivery of air into the other end of the air passages of the walls of the other tunnel, and connections for the delivery of air from said air passages at selected intervals. 4. In a construction of the class described, a foundation having a. tunnel, said tunnel having walls, selected ones of said walls having passages for air, connections for the delivery of air to all of said passages, and connections for the delivery of air from all of said passages at selected intervals.

,' 5. In a construction of the class described,

a foundation having a tunnel, said tunnel having Walls, air passageswithin selected walls, connections for the delivery of waste gas to the space between the Walls, connec tions for the delivery of air to said passages, and connections for the delivery of air from all of said passages at selected intervals.

6. In a construction of the class described, a foundation, aplurality of Walls therein, air passages Within selected ones of said Walls, connections for thedelivery of air into one end of the air passages of one wall,

connections for the delivery of air into the other end of the air passages of the other Wall, and connections for the delivery of air XRTHUR ROBERTS.

Witnesses:

FRANCES M. Fnos'r, THOMAS A. BANNING, Jr.