US1873078A

US1873078A - Coke oven apparatus

Info

Publication number: US1873078A
Application number: US423930A
Authority: US
Inventors: Joseph Van Ackeren
Original assignee: Koppers Co of Delaware
Current assignee: Koppers Co of Delaware
Priority date: 1930-01-28
Filing date: 1930-01-28
Publication date: 1932-08-23
Anticipated expiration: 1949-08-23

Description

Aug; 23, 1932. J. VAN ACKEREN coma OVEN APPARATUS Filed Jan. 28. 1930 3 Sheets-Sheet 1 INVENTOR. wage/7 V00 flame/ B @fi fi I ATT RNE 23, 1932- J. VANACKERENV v 1,873,078

COKE OVEN APPARATUS Filed Jan. 28,1930 3Sheets-Sheet 2 ll/ill .z 1

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rigid construction of the latter. 7

Patented Aug. 23,- 1932 UNITED STATES;

AT NT 'FF-ica,

JOSEPH vim AOKEREN, or onannirownsmr, ALLEGHENY COUNTY, PENNSYLVANIA, nssrenon TO THE xorrnns coMPAnYon DELAWARE, A coRroRArIon or Janna,

WARE

v coxn ovnn APPARATUS Application filed January 28, 1930. Serial ma a- My invention relates to coke-oven; apparatus and particularly to means for conducting and collecting the products of distillationfrom coke ovens. e An object of my invention is to provide a simple and convenient means for connecting.

the collecting main of the coke-oven battery to the ascension pipes of the latter in such manner as to permit relative movement there'- between. j

Y A further object of my invention is to provide means for connecting the collecting mains of coke-oven batteries to ascension pipes in such manner as to permit 'a unitary- A still further object of my invention is to provide an ascension pipe flfor coking retort ovens that is of simple and rigid construction whereby its parts are not subject to deterioration by reason of relative movements there} between. g 1

' In the construction of coke-oven apparatus prior to thepres'ent inventiomit has been the practice to provide a rigid connection be tween the collecting main and the'return bend of the ascension pipe. Inasmuch as variations in relative temperatures of the'series of communicably-connected parts comprising the coke oven, the ascension pipe andthe collecting main tend to. cause relative movements of these parts, the straight vertical portion of the ascension pipe has been constructed in two parts, witha flexible connection therebetween to provide 7 for the necessary relative movement.- r

Difficulty has been experienced in maintaining the structure described above because of the severe strains between the ascension pipe and the collecting main, tending, under certain circumstances, to rotate the collecting main to which the upper portion is connected and, under other circumstances, the strains have tended to deflect the ascension pipe from its vertical position.- Under these conditions, it has been practically impossible to'maintain gas-tight joints between the sections of the ascension pipes.

Leakage of air into the ascension pipes around the joints causedcombustion therein and the upper sections were 'not protected from such combustionlas were the lower sectlons w th their refractory linings. This combustion caused bulging or distortion of the upper sections and 'further increased the tendency to leakage. 'Als0, carbon deposits near the joints causedthelifting of'the upper sections. All of these conditions caused. relatively high maintenance costs for material and labor in attempting to maintain gas-tight connectionsbetween the ovens and the collecting main. Cement or other materials were used substantially continuously to keep the joints inproper condition. i

In accordance with the present invention, it is proposed to provide a flexible connection between the collecting main and the asc'ension pipe whereby the latter may be of rigid unitary construction, with the entire vertical section protected from high temperatures. in the manner heretofore usual with the lower section only. The flexible connection-*between the ascension pipe and the collecting main is of such nature as to permit the rela tive movements that occur by reason of variations in relative temperatures of the connected parts.

'ly, the strains to which the ascension pipehas previously been subjected aresubstantially entirely eliminated. Theexpense in maintaining the'ascension pipes has been co'rrespondingly diminished.

-My invention will be described in'con-nection with the accompanying drawings, in which 5 Figure 1 is a View in transverse vertical section of a portion of a coke-oven embodying my invention;

Fig. 2 is a view, partially in elevation and partially in section, of an ascension pipe having two sections; and I a Fig. 3 is an enlarged view, partially in elevation and partially in'section, of a portion of the apparatus of Fig. 1

Referring particularly to Fig. 1, a coke oven battery 1, only a portion of which is shown, comprises a foundation 2, a side wall conducting products of combustion to the usual stack, not shown.

The battery is provided with the usualbuckstays 12 for bracing the side walls of'the battery and which support a framework 13 at the top thereof and upon which is-mounteda collecting main 14. An ascension pipe 15 that is mounted upon the top 4 and is connected to the gas ofltake opening 7 is flexibly connected to the collecting main 14in a manner tobe described. I

An ascension pipe 16 of the prior art type is shown in Fig. 2. The lower section 17,-.connected to the ofi'take opening of a coke oven, is of metal that is provided with a lining 18 of refractory material such as ramtite. The upper section 19 telescopes with the lower section and asbestos rope or other packing or refractory material indicated at 20 provides a flexible seal between the sections.

Leakage of air occured at this junction of the sections and the resulting combustion caused damage of the unprotected upper section 19 as described above and it has been found to be substantially impossible to maintain satisfactory operating conditions even with constant maintenance.

The upper section 19- isrigidly connected to a return bend 21 in which is located a spray 22. The return bend 21 is rigidly con-. nected by a casting 23 to a collecting main 24'.- A valve 25 under the spray 22 operates as a seal when closed by the operation of a weighted arm 26. I

Reference may now be had to Fig. 3, in which the details of construction of the ascension pipe 15 and its associated parts are illustrated. The ascension pipe 15 comprises a vertical section 27 that is rigidly connected tothe oven top 4 by refractory cement, indicated at 28. The section 27 comprises a metal pipe 29 having an inner lining 30 of refractory material, such, for example, as ramtite.

Secured to the upper end of the section 27 is a return bend 32, the lower outer end of which is provided with an annular flangev 33. The return bend 32 is connected to the collecting main 14 by means of a curved pipe 34, having a vertical section 35 which telescopes the lower end of the return bend 32. The space between the telescoping portions of these connected members is filled with as bestos rope 36, which rests upon the flange 33. The remainder of the space is filled with carbon pitch, the section 35 of the pipe 34'flaring outwardly to provide an annular space-to receive this material.

'While other plastic materials may be used the temperature'range referred to above, car

bon pitch is always 'sutflciently plastic to permit relative movements of the telescoping pipes "by-reason of varying temperature conditions.

At the temperatures to which the flexible COIlIlGCtlOILdS. subjected, the carbon pitch maintainsa'gas-tight connection between therelatively movable parts and there isno leaL- age of gas by reason of suchrelative movements.- No strains are transmitted between the ascension pipeand the-collecting main 14. The usualseal-for preventingthe flow of gasufrom the collecting main into the ascension pipe 15 when the oven to which the latter is connected is not charged is provided by a rpivotally-mounted; cup-shaped valve member 39 that maybe operated by a lever 40 and is heldin-position by a weight 41. An annular flange 42 projects below the rim of the cup-shaped member 39 when the latter is in the; position illustrated and the ammonia liquor accumulates in the latter to constitute aliquid seal'for the pipe 34.

Ascension pipes constructed in accordance with my invention are cheaper in construction and require much less maintenance than those formerly. used.- The provision of a protective refractorylining-for the entire vertical section ofthe standpipe insures that theentire section is subjected to substantiallyuniform'operating conditions and the deterioration of-the-ascensi'on-pipe will be substantially eliminated inallportions of the vertical section. V I i p The foregoing and other-advantages will be apparent to those skilled in the art relating to the construction and operation of coking retort ovens; My invention may be embodied inva-rious forms; and it is not to be limited to the preferred embodiment shown and described herein except as ex pressed in the appended claims.

I claim as my invention: 1

1.- Coke oven apparatus comprising a collectinglmain, and an ascension pipe having a vertical portion and a return bend rigidly connected to said vertical portion and flexibly connected to said collecting main. 7

2. Coke oven apparatus comprising an as cension pipe having a vertical portion and a return bend rigidly mounted. thereon, a collecting main and means for yieldinglyconnecting said return bend to. said, collecting main.

3.v Coke {oven apparatus comprising an ascension pipe having a vertical portion and a return bend rigidly mounted thereon, a collecting main and means for yieldingly connecting said return bend to said collecting main, said means comprising a member for telescopic connection to said return bend and plastic material between said member and said return bend.

4:. Coke oven apparatus comprising an ascension pipe having a single unitary vertical portion and a return bend rigidly connected thereto, a collecting main and means for yieldingly connecting said collecting main to said return bend for movement relative thereto.

5. Coke oven apparatus comprising an ascension pipe having a single unitary vertical portion and a return bend rigidly connected thereto, a collecting main, and means for yieldingly connecting said collecting main to said return bend for movement relative thereto, said means comprising a member telescoping with said return bend and plastic material for connecting the telescoping parts of s aid member and said return bend.

6. Coke oven apparatus comprising a collecting main, and an ascension pipe having a single upright portion that is rigidly mounted in position and a return bend rigidly connected to said vertical portion and flexibly connected to said collecting main for communication therewith and relative movement therebetween.

7 Coke oven apparatus comprisingv a collecting main, and an ascension pipe having a single upright portion that is rigidly mounted in position and a return bend rigid- 1y connected to said vertical portion and flexibly connected to said collecting main for communication therewith and relative movement therebetween, said collecting main having a member for telescoping a portion of said return bend and plastic material for sealing the space between the telescoping portions.

8. Coke oven appartus comprising an ascension pipe consisting of a single vertical section and a return bend rigidly connected thereto, and a collecting main flexibly and communicably connected thereto.

9. Coke oven apparatus comprising an ascension pipe having a sprayer for liquid, a collecting main, and means comprising a flexible joint of plastic material for com-' municably connecting said ipe and said main, said plastic material eing beneath said sprayer whereby the temperature ,of said plastic material is modified by said liquid.

10. Coke oven apparatus comprising an ascension pipe, a collecting main, and means comprising a return bend having a sprayer for liquid therein and a flexible joint of plastic material beneath said sprayer for ary, 1930.

JOSEPH VAN ACKEREN.