Strain-free stationary furnace door actuator for a coke furnace battery of the "heat-recovery" type

Abstract

A strain-free stationary furnace door actuator for a coke furnace battery of the “non-recovery” or “heat-recovery” type, by way of which vertical opening of the coke furnace chamber doors is possible without the use of a coke furnace operating machine, wherein the deviations of the tension elements of the furnace door actuator from the intended arrangements, which result from strain of the transmitting devices, and undesired increases in tension force, which result from differences in the adhesion forces of the coke furnace chamber doors during closure, are avoided by the use of low-strain transmitting devices and tension elements. A method for the strain-free, stationary actuation of the door of a coke furnace battery of the “heat-recovery” type is also disclosed. The method uses rigid tension elements and low-strain transmitting devices for automatically opening and closing coke furnace chamber doors.

1 .- 15 . (canceled) 
     
     
         16 . A coke oven plant having an expansion-free stationary oven door controller for a coke oven plant type “Heat-Recovery”, comprising
 a coke oven bench or a coke oven battery with a quantity of in-line coke oven chambers, 
 coke oven chamber doors, which are vertically movable and close the coke oven chambers at the front, 
 a horizontally displaceable tension member, which runs along the front of the coke oven chamber at least in parts, and which is equipped with a drive unit, and which is equipped with at least one draw hook, 
 a fraction trolley, which runs on a guiding device along the front of the coke oven chamber at least in parts in a horizontally movable manner, 
 a transmission device, which is firmly connected to the traction trolley, and which is firmly connected to the coke oven chamber doors via deflection pulleys, and which is to be at least temporarily connected to the rigid tension member via the traction trolley, 
 wherein the tension member is rigid and expansion-free, and 
 the transmission device is low in expansion, and 
 a connecting mechanism connects the traction trolley to the rigid tension member upon request. 
 
     
     
         17 . The coke oven plant in accordance with  claim 16 , wherein the rigid tension member is a tension rod. 
     
     
         18 . The coke oven plant in accordance with  claim 16 , wherein the low-expansion transmission device is a chain made of low-expansion steel segments. 
     
     
         19 . The coke oven plant in accordance with  claim 16 , wherein the connecting mechanism is a stirrup fastened to the traction trolley via a joint, and which can be pivoted using a lever on request, as a result of which the draw hook of the tension member engages in a bracket provided in the stirrup when the tension member is displaced, which enables trouble-free passing of the draw hook when the stirrup is not pivoted. 
     
     
         20 . The coke oven plant in accordance with  claim 16 , wherein the connecting mechanism is a slide, which is fastened to the traction trolley via a bearing such that this can be moved transversely to the direction of movement of the traction trolley, and which can be pushed on request using a lever, as a result of which the draw hook of the tension member engages into an opening provided for this purpose on request when the tension member moves, or presses the draw hook against a protrusion of the slide. 
     
     
         21 . The coke oven plant in accordance with  claim 16 , wherein one traction trolley each is provided for each coke oven chamber with a coke oven chamber door to be opened. 
     
     
         22 . The coke oven plant in accordance with  claim 16 , wherein the tension member is equipped at least at one end with a hydraulic cylinder, which is driven by the hydraulic pump of a hydraulic unit. 
     
     
         23 . The coke oven plant in accordance with  claim 16 , wherein the tension member is equipped at least at one end with a geared motor unit. 
     
     
         24 . The coke oven plant in accordance with  claim 16 , wherein the tension member is equipped with draw hooks that are longitudinally adjustable. 
     
     
         25 . A method for the expansion-free, stationary oven door control of a coke oven plant type “Heat-Recovery”, in which
 the coke oven chamber doors of a coke oven bench or a coke oven battery with a quantity of in-line coke oven chambers are to be periodically opened and closed, and 
 a traction trolley which is equipped with a connecting mechanism and is movable along the front of the coke oven chamber via a guiding device remains in the resting position without request, 
 wherein a rigid and expansion-free tension member, which is equipped with a draw hook, moves upon request longitudinally along the front of the coke oven chamber, and 
 the connecting mechanism connects the traction trolley and the tension member upon request via the draw hook, such that the traction trolley with the tension member is moved longitudinally along the front of the coke oven chamber, and 
 the traction trolley opens the coke oven chamber door via a low-expansion transmission device and closes the coke oven chamber door upon the return of the traction trolley. 
 
     
     
         26 . The method in accordance with  claim 25 , wherein the tension member is moved by a hydraulic cylinder, which is driven by the hydraulic pump of a hydraulic unit. 
     
     
         27 . The method in accordance with  claim 25 , wherein the tension member is moved by a geared motor unit with pinion or lantern gear force transmission. 
     
     
         28 . The method in accordance with  claim 25 , wherein the drive unit is requested by a radio transmission mechanism. 
     
     
         29 . The method in accordance with  claim 25 , wherein the connecting mechanism is manually requested. 
     
     
         30 . The method in accordance with  claim 25 , wherein the connecting mechanism is requested by remote control.