US2040887A

US2040887A - Coke oven door

Info

Publication number: US2040887A
Application number: US608873A
Authority: US
Inventors: Paul Van Ackeren
Original assignee: Koppers Co Inc
Current assignee: Beazer East Inc; Koppers Co of Delaware
Priority date: 1931-05-04
Filing date: 1932-05-03
Publication date: 1936-05-19
Anticipated expiration: 1953-05-19

Description

May 19, 1936. P VAN ACKEREN 2,040,887

COKE OVEN DOOR Filed May 3, 1932 2 SheeJs-Sheel'l 1 Unvenlar;

May 19, 1936. P. VAN ACKEREN 2,040,887

COKE OVEN DOOR Filed May 3, 1932 2 Sheets-Sheet 2 @l f8 2o zo si f V fR-I7 ii ZZ i o l@ @l o l C@ Q a A I Q i \i Q O Q) f l 8 V I /l/ i 26 l- O Q Q O Z7 I E: Z8

Q La 4 i o O t Q 25 I "t9 l 'i \9- 5 4 '5 i i I i i 1 l i Patented May 19, 1936 UNITED STATES COKE lOVEN Doon Paul Van Ackeren, Essen, Germany, assig'nor, by mesne assignments, to The Koppers Company of Delaware, Pittsburgh, Pa., a corporation of Delaware Application May3, 1932, Serial No. 608,873

In Germany May 4, 1931 2 Claims.

This invention relates to coke oven doors, that is to the door-like arrangements employed for closing during the coking pro-cess the apertures through which the coke is removedl from the chambers of coke ovens, and has more particular reference to coke oven doors of the type in Which the crack or fissure between door and door frame is selectively either closed` with. clay or the like or covered by a metal frame resting on at sealing surfaces or in flat grooves formed in the door or door frame.

In my pending patent application relating to coke oven doors filed December 5, 1930, Serial No. 500,221, I have described a coke oven door which u can be used either with a so-called clay packing or a so-called metal-on-metal sealing. In the door described in this prior patent application, when the metal-on-metal sealing is employed, the door fissure is closed by a resilient sheet metal frame running substantially parallel to the plane of the door which is secured to the outer periphery of the door and has an edge projection or flange facing towards the door frame which when the door is closed applies itself resiliently against a suitable sealing or packing surface formed on the door frame. If my prior coke oven door is used with clay packing the metal sealing frame descrlbed is removed fro-m the door so that the packing clay can be pressed into the space between the faces of the door or door frame which widen outwards in the form of a wedge. For this purpose the door frame is provided with an outwardly projecting peripheral bar which when the door is set in position in the frame projects somewhat, beyond the door element on all sides.

One object kof my present invention is to provide an improved coke oven door adapted to be used selectively either with clay packing or with a metal-on-metal sealing without a metal sealing frame having to be removed from or secured to the door element when the manner of sealing the door is changed.

The essential feature of the coke oven door constructed in accordance with my present invention is the provision of a resilient metal sealingi frame on the side of the door element facing the coking chamber, the said sealing frame being secured to the door element in such a manner that its projecting sealing surface can be adjusted relatively to the door element or bent in accordance with the existing course of the sealing surface of the door frame.

Reference will now be made to the accompanying drawings in which I have illustrated a coke oven door constructed in accordance with my present invention and in which:-

Figure 1 is a section taken through the door along the line I-I of Figure 2, and

Figure 2 is an elevational view of the door, the upper part thereof being omitted for clearness of illustration, being the same as the lower partV shown.

In the embodiment of my invention which is illustrated in the drawings the coke oven door serves to close the chamber I of a horizontal chamber oven consisting of refractory brickwork 2. The brickwork 2 of the oven is surrounded externally by a metal covering 3 having anchor stanchions 4 which serve to hold together the brickwo-rk blocks of the oven.

On the metal covering 3 around the door aperture or doorway of the coking chamber I a metal frame 5 is secured, packing' material 6 being provided between the frame 5 and the metal covering 3. The door frame 5 is secured by means of bolts 8 (only one of which is shown in detail in Fig. 1 and four inA Fig. 2, since the others are duplicates thereof) whose heads engage in cavities 1 inthe metal covering 3. The door frame 5 is provided externally with a peripheral bar,- shaped extension 9 which is provided at the parts adjacent the bolts 8 with reinforcing ribs I0 on whose end surfaces the nuts II of the bolts 8 eirgage through the intermediary of plate springs resiliently against the metal covering of the oven brickwork so that when the metal covering 3 bends as it must do during the operation of the oven the door frame 5 remains unharmed.

The door itself consists of a stopper-shaped element I3 composed of refractory material which when the door is set in position projects into the oven chamber approximately as far as the heating zone. 'I'he stopper element I3 is secured by bars I4 to the metal door element I5 which has an edge projection or ange I5 engaging over the door frame 5 on all sides and providing on the edge I6 of the door an inner face ISE having a groove I1 of approximately Ushaped cross section. In the groove I1 selfsealing means are provided comprising a resilient packing material I8 in which a sealing frame I9 consisting of resilient T-iron or the like is embedded in such a manner that one edge of the T-iron projects out from the groove I1..

The projecting edge of the frame I9 is shaped in the form of a knife and when the door is shut In this mannerthe door frame 5 is held itapplies itself against a suitable sealing surface 2l of thedoor frame I.

In Iorder to enable kthe sealing edge of the metal frame i9 to be adapted when necessary to the sealing surface 20 of the door frame l, set screws 2i are provided on the door element which act vthrough the intermediary `of a press frame 22 on the packing material provided in the groove -of said channel 23.

Il which consists preferably of asbestos or the like. Preferably the section of the groove l1 is reduced somewhat outwardly so that the packing material' I8 is pressed like a wedge by the screws 2| into the groove I1 thus forming-a very eiective packing.

When the door illustrated in the drawings ls used with clay packing the clay paste is introduced into the space of the luting channel indicated at 23 between the peripheral bar-shaped extension 9 of the door frame 5 andthe face of the door projection or peripheral luting member I6 on the door. As shown in Figure 1 the peripheral luting member I6 on the door and the peripheral bar-shaped extension 9 cooperate to form a luting channel 2l for pacldng material. and the self-sealing means is within the confines The packing space 22 is of approximately V-shaped section, the .end face I6' of the door projection I6 and the inner face 9' of the bar 9 of the doorl frame 5 gradually becoming more remote from each other outwardly.

The door is secured in the door frame by means of the rotary bolt bar 24 mounted rotatably in a bearing 25 of the door. The bar 24 is pro'vided with a square head'26 for the key. In the closedY position the bar 2l engages behind hook-shaped projections 21 which are secured tothe doo frame 5 by means of screws 28.

I rwish it to be understood that I do not desire to be limited to the exact details of construction illustrated and described herein, for obvious modiilcations will occur to a person skilled in the art.

In the claims hereinafter made no selection of any particular embodiment of my present invention is intended to the exclusion of other embodiments thereof, and the right subsequently to the door on all sides for sealing the space'between the door body and the door frame, the self-sealing means being located on the inner face of anedge of the door overlapping the door frame but still within the conilnes of the luting Sealing meansy and having means forjits adjustment from outside the door,a`nd the-luting sealing means comprising a peripheral edge surface of the door and a peripheral extension on the door frame forming a V-shaped channel opening outwardly around the door and gradually befor se1f-cleaning,and the luting sealingl means being spaced a sumcient distance from the selfsealing means sov that the adjusting means for the self-sealing means and the V-shaped channel are both accessible without interfering with each other fromoutside the door in its closed position for adjustment at will: of the self-sealing means or for manual packing of the luting channel and independently of the presence of each other while both sealing means are still in position on the door. I

2. A combination closure for coke ovens, comprising a door frame and a door body adapted to it in said frame and comprising both anouter peripheral luting sealing means adapted for holding a manually applied clay packing seal and an inner peripheral self-sealing means for automatic metal-on metal sealing surrounding the door on all sides for sealing the space between the door body and the door frame, the self-sealing means being located within a channel on the inner faceof an edge of the door overlapping the door frame but still within the conilnes of the luting sealing means land having means forl its coming more remote from each other outwardly adjustment from outside the door, andthe luting sealing means comprising a peripheral surface of the aforesaid edge of the door and a peripheral extension on the door frame forming a V-shaped channel opening outwardly around the door and gradually becoming more remote from each other outwardly for self cleaning, and the luting sealing means being spaced'a suiiicient distance from the self-sealing means so that the adjusting means for the self-sealing means and the V- shaped channel are both accessible without interfering with each. other from outside the door in its closed position for adjustment at will of the self-sealing means or for-manual packing of the luting channel and independently of the presence of each other while both sealing means are still in position on the door.

PAUL VAN vACKEREN.