US 5,087,328 AGranted

Method and apparatus for removing filling gases from coke ovens

AssigneeVoest-Alpine Stahl Linz Gasellschaft m.b.H.

InventorsJohannes Wegerer, Wilhelm Kandler, Horst Panzer, Karl Buchberger

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Abstract

A gas jumper arrangement for a coke oven is composed of adjacently arranged coke oven chambers each having a gas opening with rims at the top portion thereof. The gas jumper arrangement overlaps gas openings of two adjacent coke oven chambers by one lid chamber each. The two lid chambers are connected in a duct-like manner by a gas jumper pipe and lids covering the gas openings during filling of a coke oven chamber are displaceable from an opened position into a closed position and settable into a rotational movement within the lid chambers by an actuation device. In order to ensure the tightness of the gas openings at the rims thereof even at larger pressure fluctuations and to enable the introduction of inert gas into the gas jumper arrangment, both the lid and the rim of each gas opening includes valve-face type sealing surfaces that mate with each other when pressed against each other in the closed position of the lid. A feed line for supplying an inert gas runs into the gas jumper arrangement. An inert gas pressure prevails in the gas jumper arrangement with the lids closed which is in excess of the pressure prevailing in the coke oven chambers.

A method of filling a coke oven chamber of a coke oven comprised of adjacently arranged coke oven chambers each having a gas opening by using a stationary gas jumper arrangement including two lid chambers each disposed over a respective gas opening of two adjacently arranged coke oven chambers and each containing a coke oven chamber lid for covering said gas openings and uncovering said gas openings during filling of one of said coke oven chambers,

said two lid chambers being connected together by a duct in the form of a gas jumper pipe, actuating means for moving each of said coke oven chamber lids from an opened position to a closed position on said gas openings during which each of said chamber lids is rotationally fitted to said gas openings,
wherein each of said gas openings is characterized by an annular rim having sealing surfaces and each of said coke oven chamber lids has sealing surfaces which mate with said rims to provide a tight fit with each other in the closed position,
wherein a gas feeding duct is connected to said gas jumper pipe for supplying inert gas into said gas jumper pipe when the coke oven chamber lids are closed against the rims of said gas openings and wherein a closable air opening means is provided in each of said coke oven chambers near the gas jumper pipe, said method comprising;
filling a first one of said two adjacent coke oven chamber with coal and thereby generating filling gases;
placing said two adjacent coke oven chambers under negative pressure;
removing part of the filling gases by suction directly from said first one of said two adjacent coke oven chambers and
removing another part of the filling gases by suction from the second one of said two adjacent coke oven chambers by transfer through said gas jumper arrangement while
aspirating air through the air opening means of the first one of said two adjacent coke oven chambers for combustion with said another part of the filling gases during transfer so as to prevent carbonaceous deposits from forming on the interior of the gas jumper arrangement.

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Abstract

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