Distillation: processes – thermolytic – Miscellaneous
Patent
1981-02-17
1983-07-05
Garris, Bradley
Distillation: processes, thermolytic
Miscellaneous
202262, 202263, 202270, 414210, 414212, 414786, C10B 3300, C10B 3314, C10B 4502
Patent
active
043916740
DESCRIPTION:
BRIEF SUMMARY
DESCRIPTION
1. Technical Field
This invention relates generally to coke oven batteries, and more specifically to an improved method and apparatus for transferring hot coke from a coke oven chamber into quench cars.
2. Background Art
Coke is produced for iron making by treating coal in batteries of coking ovens. Finished coke is pushed from chambers of an oven along a movable coke rack and into a quench car for transportation to sites of subsequent coke use in the iron making process. The quench cars are moved by a locomotive on tracks alongside the batteries of coke ovens.
Previously, as coke was pushed from an oven chamber, a quench car being loaded would be concurrently driven slowly past the oven chamber thereby distributing the pushed coke within the car. More recently, so called single spot coke cars which remain motionless during a coke push have been utilized to transport coke. Use of these single spot cars has allowed easy and efficient recovery of fumes evolved from the coke during the push, and has resolved past problems in timing the rate of movement of the coke car with the speed of the coke push. Use of the single spot cars has lead to development of devices for distributing coke within the quench car during a coke push.
Coke distributing devices have been proposed which function within the confines of a fume hood lowered over both the distributing device and a hatch through which coke is dropped into the quench car. Typically, such a distribution device forms an extension of the coke rack, and is raised to a storage position following a coke push to provide track clearance for moving the filled quench car. Some prior systems each had a distribution device which acted as a spreader or plow to spread and level the coke within the quench car. With one of these systems the spreading action occurs as the distributor is raised for storage. These distributors have fostered operating difficulties caused by coke remaining within the distributor following a coke push. This remaining coke falls from the distributor into the coke rack as the distributor is raised. This fallen coke from time to time causes mechanical damage to the mechanism used to retract the coke rack from the oven. Additionally, some coke remaining within the distributor may fall over the edge of the quench car to the ground potentially posing environmental problems.
In one commercial system the fume hood and the distribution device are moved to and from the coke guiding positions by separate and independently acting sets of hydraulic cylinders. These multiple cylinders are frequently a source mechanical downtime, delaying the processing of coke.
When the cylinders for raising the hood function properly and raise the hood following a coke push, but the cylinders for raising the distribution device fail to function, movement of the quench car may cause serious mechanical damage to the distribution device. Further, until the distribution device is raised from the quench car, any hatch necessary to seal the quench car for quenching the coke cannot be closed, leading to coke losses through combustion, and posing potential environmental problems.
DISCLOSURE OF INVENTION
The present invention provides an improved method and apparatus for (a) guiding coke pushed from a coke oven chamber into a quench car; (b) distributing the coke within the car; (c) assuring that coke remaining on the distributor following a push is deposited in the quench car; and (d) increasing mechanical reliability of the coke pushing operation.
A device made in accordance with this invention includes a swingable coke guiding chute. During a coke push the chute extends from an opening through which the coke is pushed to a suitable location for guiding the coke into a quench car. Upon completion of the push the chute is swung along a curvilinear pathway from the coke guiding position to a storage position. As the chute is swung any coke remaining on it is dumped into the quench car and concurrently coke within the quench car is distributed.
The swingable chute include
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Kovatch Michael S.
Mautz, Jr. Gus H.
Velmin Rolf
Garris Bradley
Republic Steel Corporation
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