A method for on-line uncovering of a coke oven feeding port

Abstract

An online decapping method for a coke oven coal charging port. The online decapping system is an independent control unit, which is linked with an existing riser system and a coal charging truck. The furnace number, using the electromagnet principle to open and put the open-hearth furnace cover, can run to other areas to stay or continue to open the furnace cover, or return to a certain furnace number according to the remote command, and put the furnace cover back into the corresponding coal filling port. The invention can realize remote control and unmanned operation, and can completely replace the manual opening and closing of the furnace top of the coke oven; it can realize the orderly empty burning of coal residual graphite and secondary coke, and avoid excessive empty burning in local carbonization chambers. The damage to the refractory masonry of the coke oven caused by the damage can also eliminate the problem of unburned gas emission during the opening of the riser cover, reduce the fugitive emission of VOCs in the coking production process, reduce environmental pollution, and improve the coke oven operating environment.

Description

technical field [0001] The invention relates to coke oven technology, in particular to a method for on-line uncovering of a coal feeding port of a coke oven. Background technique [0002] The top-loading coke oven has 4-5 coal filling ports in each hole of the carbonization chamber. The furnace cover is opened during the coal charging operation, and the furnace cover is closed when the coal charging is completed. The opening and closing of the furnace cover is carried out by the coal charging truck. In the process of dry distillation of coking coal in the coke oven, the volatiles are continuously precipitated into waste gas, which passes through the high temperature refractory masonry and enters the bridge pipe for cooling and then collects into the gas collecting pipe. The raw gas is mainly composed of multi-component hydrocarbons, which are cracked at high temperature to form carbon black, mixed with coal dust during the coal charging process, and deposited on rough parts ...

AI Technical Summary

Problems solved by technology

[0006] In the existing technology, except that the coal loading car uses the cover removal machine to open the cover, it is all carried out manually, and there are problems such as poor working environment for workers, safety risks of man-machine combination, and difficulty in synchronizing the operation and the riser cover.

Restricted by the characteristics of coking production, maintenance operations such as the coal inlet on the top of the coke oven and the riser pipe need to be manually opened. For a long time, there has been no significant breakthrough in domestic and foreign technologies, which restricts the realization of smart coking

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