Sealing device for preventing flue gas from overflowing when tamping coke oven is charged with coal

Abstract

The invention discloses a sealing device for preventing flue gas from overflowing when a tamping coke oven is charged with coal, which comprises a shell with an open bottom; a flue gas buffer chamber inside the shell; , the front door is compatible with the door of the tamping coke oven, and the two sides and the upper edge are respectively provided with sealing knife edges, and the left and right edges and the upper edge of the rear door are respectively provided with high-temperature-resistant soft sealing strips; The middle parts of the outer sides of the left and right side walls of the gas buffer chamber are respectively equipped with guide wheels that match the guide rails on the coal loading car; rail wheel. The present invention effectively solves the problem that the flue gas in the coke oven overflows and the external air is sucked into the coke oven due to pressure fluctuations in the coke oven when charging coal into the tamping coke oven, and realizes that the furnace door does not emit smoke when charging coal The goal of achieving the environmental protection emission standard, there is a support and restriction relationship between the present invention and the coal loading vehicle, so the operation is reliable and stable, and it is not easy to tilt.

Description

technical field [0001] The invention relates to a device for eliminating smoke during the coal charging process of a tamping coke oven, in particular to a sealing device for preventing smoke from overflowing when the tamping coke oven is charging coal. Background technique [0002] The negative pressure recovery method is used to eliminate smoke when the tamping coke oven is charged, but during the process of charging the coke oven, there is serious smoke at the furnace door, and it is very difficult to control the pressure of the high-pressure ammonia water that controls the suction of the coke oven gas outlet pipe. If the pressure is increased, the suction force of the gas outlet pipe will increase, and the amount of gas overflow will decrease, but the external air sucked in from the furnace door will increase, resulting in an increase in the oxygen content of the gas, which may lead to the risk of gas explosion; if the pressure of high-pressure ammonia water is lowered , ...

AI Technical Summary

Problems solved by technology

[0002] The negative pressure recovery method is used to eliminate smoke when the tamping coke oven is charged, but during the process of charging the coke oven, there is serious smoke at the furnace door, and it is very difficult to control the pressure of the high-pressure ammonia water that controls the suction of the coke oven gas outlet pipe. If the pressure is increased, the suction force of the gas outlet pipe will increase, and the amount of gas overflow will decrease, but the external air sucked in from the furnace door will increase, resulting in an increase in the oxygen content of the gas, which may lead to the risk of gas explosion; if the pressure of high-pressure ammonia water is lowered , the suction of the gas outlet pipe will decrease, and the amount of gas overflowing from the furnace door will increase, which will pollute the environment and fail to meet the requirements of environmental protection.

Moreover, even when the coal is charged under the same pressure of high-pressure ammonia water, when the coal cake is sent to the first 1 / 3 section of the coke oven, the amount of gas produced is small, which leads to a large amount of external air being sucked into the furnace, resulting in an increase in the oxygen content of the gas , resulting in the danger of gas explosion; when the briquettes are sent into the coke oven after 2 / 3, due to the sharp increase of gas, a large amount of smoke will overflow from the furnace door, polluting the atmosphere

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