US3729384A

US3729384A - Flexible belt movable hood

Info

Publication number: US3729384A
Application number: US00108507A
Authority: US
Inventors: R Kinzler; R Staats
Original assignee: Koppers Co Inc
Current assignee: Raymond Kaiser Engineers Inc
Priority date: 1971-01-21
Filing date: 1971-01-21
Publication date: 1973-04-24
Anticipated expiration: 1990-04-24
Also published as: DE2201963A1; DE2201963B2; GB1374655A; JPS5720355B1

Abstract

A gas collecting main, extruding coextensively of a coke oven battery, has a flexible, heat-resistant web closing one side. An apparatus that is mounted to, or that is movable synchronously with, a coke guide cooperates with the flexible web to provide an opening in the collecting main wherever the apparatus stops so that gases, emitted from a coking chamber when the doors are removed and while pushing coke, are directed into the collecting main only through such opening.

Description

Elite tates atent Kinzler et all.

Apr. 24, 1973 FLEXIBLE BELT MOVABLE HOOD [75] Inventors: Raymond C. Kinzler, Carnegie; Robert M. Staats. Beaver Falls, both of Pa.

[7 3] Assignee: Koppers Company, Inc., Pittsburgh,

[22] Filed: Jan. 21,1971

[21] Appl. No.: 108,507

[52] US. Cl ..202/263 [51] Int. Cl. ..Cl0b 27/00 [58] Field of Search ..202/227230, 262,

VM, 115 R; 263/50 56] References Cited UNITED STATES PATENTS 2,923,227 2/1960 Hawley ..98/115 VM 3,380,371 4/1968 Scheel 98/1 15 VM 809,645 l/1906 Treat ..202/227 X 3,647,636 3/1972 Helm ..202/263 FOREIGN PATENTS OR APPLICATIONS Germany 202/263 Germany ..202/227 Primary ExaminerNorman Yudkoff Assistant ExaminerDavid Edwards Attorney-Sherman H. Barber, Oscar B. Brumback and Olin E. Williams [57] ABSTRACT A gas collecting main, extruding coextensively of a coke oven battery, has a flexible, heat-resistant web closing one side. An apparatus that is mounted to, or that is movable synchronously with, a coke guide cooperates with the flexible web to provide an opening in the collecting main wherever the apparatus stops so that gases, emitted from a coking chamber when the doors are removed and while pushing coke, are directed into the collecting main only through such opening.

6 Claims, 3 Drawing Figures ll l l l l g Patented April 24, 1973 3,729,384

3 Sheets-Sheet 1 FIG. I

INVENTORS' RAYMOND c. K/IVZLER I ROEERTM. $74 473 BY JWMM Patented April 24, 1973 3,729,384

3 Sheets-Sheet 5 FLEXIBLE BELT MOVABLE HOOD BACKGROUND OF THE INVENTION This invention relates to coke ovens and, more particularly, to method and apparatus for tapping a suction main into which gases, emitted from the coke oven when doors are removed and coke is pushed, are directed and thereby removed from the coke oven battery.

During the pushing of hot coke from a coking chamber of a coke oven battery there evol-ves a large volume of gases containing dust and other particulate matter that pollute the air since these pollutant gases are not now collected and scrubbed. However, because of the passage and enforcement of more rigid code requirements on air pollution, ways and means are being found to curb the pollution of the environmental air around a coke oven battery. One novel apparatus that is adapted for collecting the pollutant gases evolving during pushing of coke from a coke o-ven chamber is described hereinafter.

SUMMARY OF THE INVENTION and smoke to flow into the second conduit; such means also replaces the flexible belting as the third conduit moves.

BRIEF DESCRIPTION OF THE DRAWING The drawing illustrates one embodiment of the invention wherein:

FIG. I is a schematic elevational view of apparatus in accordance with the invention;

FIG. 2 is a view along line IIII of FIG. 1;

FIG. 3 is a schematic view ofa portion ofa coke oven showing the relation of the apparatus of FIGS. 1 and 2 thereto.

DETAILED DESCRIPTION Referring to FIG. I, an elongate gas collecting main I 11 is fixed in a suitable location and is coextensive with the length ofa coke oven battery 12. The gas collecting main II has a generally rectangular shape, as shown in FIG. 2, being comprised of parallel vertical spaced apart side walls 13, I and a flat horizontal bottom 17 connecting the

side walls

13, 15. The top of the collecting main II is open between the toes of oppositely

0pposed angles

19, 21 mounted securely to the top edges of

respective side walls

13, 15.

At regularly spaced apart intervals along the length of the gas collecting main 11, there are transversely extending Tee members 23 which are connected suitably, as by welding, to the

angles

19, 21. Thus, there are-a plurality of substantially rectangular shaped openings 25 .in the top of the gas collecting main 11 through which gases pass entering the main.

Outwardly extending

angles

27, 29 are fitted to the

side walls

13, 15 respectively, as shown in FIG. 2, and these angles are coextensive with the length of the gas collecting main 11. The angle 27 carries an inverted angle 31 welded thereto, as shown in FIG. 2, which angle 31 forms a track that coacts with a pair of notched or

grooved rollers

33, 35.

The

rollers

33, 35 are journaled respectively in a hood structure 37 mounted for movement along the length of the gas collecting main 11.

The hood structure 37 comprises a vertical front wall 39 that is generally triangular in shape with its apex at the top and an envelope 41 which is secured to the two sloping edges of the triangular vertical wall 39. The envelope 41 connects to a duct 43 which is shaped about as shown in FIG. 2 and which is connected to a gas conduit 45 by means of a flexible joint 47 of the bellows type. The gas conduit 45 is secured to andcommunicates with a hood enveloping the coke guide. Internally, there is a butterfly type of damper 49 in the gas conduit 45 about where shown in FIG. 2.

It will be noted that one wall of the duct is journaled to the left hand ends of the

rollers

33, 35.

Within the envelope 41 there is another vertical wall 51 that is parallel to the vertical front wall 39, but the interior wall 51 has a large generally triangular opening 53 in it through which gases rising in the gas conduit 45 pass.

The spaced apart

vertical walls

39, 51 are interconnected by a plurality of transversely extruding Tee bars or members 55; three Tee bars 55 being on the left and three Tee bars being on the right of the vertical centerline of the front wall 39, as may be noticed by reference to FIG. 1.

At the apex of the front wall 39 and the interior wall 51 there is journaled in each wall respectively another horizontally extending roller 57.

A flat flexible belt 59, which may be made of any suitable material such as asbestos wire woven belting having a silicon coating, extends across the top of the open gas collecting main 11, and it extends from a dead end connection (not shown) at the right hand end of the gas collecting main 11, to the roller 35. The belting 59 passes under roller 35 and up on the surface provided by a pair of oppositely positioned angles 61, 63 mounted to the front wall 39 and to interior wall 51. The belting 59 is also supported transversely by the several Tee

bar members

23 and 55.

The belting 59 passes over the upper roller 57 and down the opposite side on the surface of the angles 61, 63 and Tee bar members 53 to the roller 33. The belting passes under the roller 33 and then lies flat on the top ofthe gas collecting main I I Thus, the lower

parallel rollers

33, 35 are in upper surface contact with the belting 59 and the upper single and connecting rods fixed to structure adjacent the gas collecting main' 11. Thus, the belting 59 is maintained continually under tension.

ovenbattery 12, to' a movable closed coke guide 91 and to a closed quenching car 93 that is moved by a locomotive 95. It will be noted that the collecting main ll is independently supported on structural columns 97in such a way that the collecting main 11 is closely adjacent the movable coke guide 91. The coke guide 91, of course, moves relative to the fixed collecting main 11,

In operation, the motor 77 is .activated so that the roller 33 turns either clockwise (in FIG. 1) to move the apparatus toward the right when the coke guide (gas conduit 45 being fixed to' and movable with the coke guide) moves toward the right to the next oven that is to be pushed. Whenthe coke guide is moved into position to receive pushed coke, linkage connected to the coke guide also pivots the butterfly valve 49 about its support shaft 85 to the open position, where shown by dotted outline.

lt will be observed that when the apparatus moves with the coke guide, the belting material remains stationary lengthwise, but that the

rollers

33, 35, 65 rotate and move respectively over, over, and under the belting at all times. Thus, the belting provides a unique seal on the collecting main that is easily and readily opened, at selected locations, in fact at any location at which the coke guide stops.

It should be recognized by those skilled in the art that in some applications, the apparatus may not be driven by .the motor, chain and sprockets described previously, but the apparatus may just move with the coke guide whenever the guide moves along the coke oven battery.

A feature of the invention is that the collecting main remains sealed atall times except at a location where the apparatus is positioned and that position is at a coking chamber that is to be or is being pushed.

A feature of the inventionis that thecollecting main opens automatically at the coke oven to be pushed and seals automatically after pushing when the coke guide and the apparatus move to the next oven to be pushed.

Although the invention has been'described herein with a certain degree of particularity, it is understood that the present disclosure is made only as an example and thatvarious modifications may be made within the scope of the invention defined by what is hereinafter claimed;

What is claimed is:

- 1. In a coke oven battery having a coke guide with means associated with such guide for collecting smoke and gases emitted during the door removal and pushing of coke from said battery, the improvement comprising: I

a. a first conduit mounted to the means associated with said coke guide for conducting saidsmoke and gases therefrom;

b. a second conduit fixed adjacent to and extending coextensively with said coke oven battery, and including a continuous flexible belting forming a portion of one side thereof;

c. a third conduit connected to said first conduit and disposed in close proximity to and over a finite area portion of said flexible belting;

d. first and second spaced apart parallely arranged rollers, each being journaled to said third conduit and disposed in upper surface contact with said flexible belting and with said second conduit;

e. a third roller disposed parallel to and spaced apart from said first and said second rollers and journaled to said third conduinsaid third roller being disposed in under surface contact with said flexible belting;

f. a motor mounted to said third conduit;

a driving sprocket mounted to said motor;

. a driven sprocket mounted to one of said first and second rollers;

' i. a drive chain looped around said sprockets and providing a driving connection to said roller whereby when said motor is actuated said third conduit moves relative to said second conduit; and

j. means cooperating with said third conduit for partially detaching said flexible belting in the area beneath said third conduit and forming an opening into said second conduit, said means being adapted for replacing said flexible belting when said third conduit moves along said battery and for continuing to so open said second conduit as said third conduit moves.

2. The apparatus of claim 1 including:

a flexible bellows-like sleeve connected to both said first and said third conduits.

. The invention of claim 1 including:

. damper means in said first conduit that is operable to open and close said conduit to the flow of smoke and gases in said first conduit.

4. In a coke oven battery having a coke guide with means associated with said guide for collecting smoke and gases emitted during the door removal and pushing v of coke from said battery, the improvement comprisa. a first conduit mounted to the means associated with said coke guide for conducting said smoke and gases therefrom; i

b. a damper mounted in said first conduit that is operable to open and close said conduit to the flow of smoke and gases in said first conduit;

c. a second conduit fixed adjacent to and extending coextensively with said coke oven battery and including a continuous flexible belting forming a portion of one side thereof;

d. a plurality of structural members on said second conduit forming a skeletal frame on which said flexible belting is supported;

e. a third conduit connected tosaid first conduit anddisposed in close proximity to and over a finite area portion of said flexible belting; f. first and second spaced apart parallely arranged rollers, each being journaled to said third conduit conduit moves relative to said second conduit; and

m. a flexible bellows-like sleeve connecting said first and third conduits.

5. The apparatus of claim 4 including:

a. a skeletal frame in said third conduit disposed between said first and said third rollers on which said flexible belting is supported.

6. The apparatus of claim 5 including:

a. a skeletal frame in said third conduit disposed between said second and said third rollers on which said flexible belting is supported.

Claims

1. In a coke oven battery having a coke guide with means associated with such guide for collecting smoke and gases emitted during the door removal and pushing of coke from said battery, the improvement comprising: a. a first conduit mounted to the means associated with said coke guide for conducting said smoke and gases therefrom; b. a second conduit fixed adjacent to and extending coextensively with said coke oven battery, and including a continuous flexible belting forming a portion of one side thereof; c. a third conduit connected to said first conduit and disposed in close proximity to and over a finite area portion of said flexible belting; d. first and second spaced apart parallely arranged rollers, each being journaled to said third conduit and disposed in upper surface contact with said flexible belting and with said second conduit; e. a third roller disposed parallel to and spaced apart from said first and said second rollers and journaled to said third conduit, said third roller being disposed in under surface contact with said flexible belting; f. a motor mounted to said third conduit; g. a driving sprocket mounted to said motor; h. a driven sprocket mounted to one of said first and second rollers; i. a drive chain looped around said sprockets and providing a driving connection to said roller whereby when said motor is actuated said third conduit moves relative to said second conduit; and j. means cooperating with said third conduit for partially detaching said flexible belting in the area beneath said third conduit and forming an opening into said second conduit, said means being adapted for replacing said flexible belting when said third conduit moves along said battery and for continuing to so open said second conduit as said third conduit moves.

2. The apparatus of claim 1 including: a. a flexiblE bellows-like sleeve connected to both said first and said third conduits.

3. The invention of claim 1 including: a. damper means in said first conduit that is operable to open and close said conduit to the flow of smoke and gases in said first conduit.

4. In a coke oven battery having a coke guide with means associated with said guide for collecting smoke and gases emitted during the door removal and pushing of coke from said battery, the improvement comprising: a. a first conduit mounted to the means associated with said coke guide for conducting said smoke and gases therefrom; b. a damper mounted in said first conduit that is operable to open and close said conduit to the flow of smoke and gases in said first conduit; c. a second conduit fixed adjacent to and extending coextensively with said coke oven battery and including a continuous flexible belting forming a portion of one side thereof; d. a plurality of structural members on said second conduit forming a skeletal frame on which said flexible belting is supported; e. a third conduit connected to said first conduit and disposed in close proximity to and over a finite area portion of said flexible belting; f. first and second spaced apart parallely arranged rollers, each being journaled to said third conduit and disposed in upper surface contact with said flexible belting and with said second conduit; g. a third roller disposed parallel to and spaced apart from said first and said second rollers and journaled to said third conduit, said third roller being disposed in under surface contact with said flexible belting; h. means fixing one end of said flexible belting and means resiliently biasing the other end of said flexible belting whereby said flexible belting is continually under tension; i. a motor mounted to said third conduit; j. a driving sprocket mounted to said motor; k. a driven sprocket mounted to one of said first and said second rollers; l. a drive chain looped around said sprockets and providing a driving connection to said roller whereby when said motor is actuated said third conduit moves relative to said second conduit; and m. a flexible bellows-like sleeve connecting said first and third conduits.

5. The apparatus of claim 4 including: a. a skeletal frame in said third conduit disposed between said first and said third rollers on which said flexible belting is supported.

6. The apparatus of claim 5 including: a. a skeletal frame in said third conduit disposed between said second and said third rollers on which said flexible belting is supported.