Coaling method for a coke oven vehicle

Abstract

The invention belongs to the coaling field of coke oven vehicles and especially relates to a coaling method for a 7.63m coke oven vehicle. A coal charger charges coal into a coke oven charring room through four helical coal charging devices with the same structures. The four helical coal charging devices are controlled by delay time, and coal charging time of each helical coal charging device is 85 s. First coal leveling is carried out when 85-95% of the pre-coaling amount undergoes coal charging in the coke oven charring room by the four helical coal charging devices; and second coal leveling is carried out when coal charging is completely finished. According to the invention, furnace-mouth gas and smoke leakage caused by too much pressure in the space of the furnace roof is avoided. Meanwhile, coal charging amount of a single coke oven charring room is increased, the space height of the furnace roof is reduced, the temperature of the furnace roof space is decreased, single-hole coke yield is increased, and coke output is raised.

Description

technical field [0001] The invention belongs to the field of coal charging of coke oven vehicles, in particular, it is suitable for a coal charging method of 7.63m coke oven vehicles. Background technique [0002] The coal loading method of the 7.63m coke oven vehicle is different from the coal loading method of the 4.3m coke oven through the coal loading car, which is mainly adjusted by setting the volumes to be loaded into the four coal hoppers. Due to differences in coal particle size, coal moisture, and coal blending, etc., at the final stage of coal loading, there may be excessive pressure in the top space of the furnace, resulting in gas leakage at the furnace mouth, and the environmental protection cannot meet the required standards; at the same time Because the speed of coal loading changes too quickly in a short period of time, it will affect the normal operation of the coal loading screw mechanism, and problems such as large screw current, screw screwing, and furna...

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Problems solved by technology

[0003] The technical problem to be solved by the present invention: how to dynamically adjust the coal loading capacity of the four coal hoppers to the greatest extent according to the actual process conditions of each coke oven carbonization chamber, so as to ensure that each coke oven carbonization chamber reaches the maximum coal loading amount; Avoid the phenomenon of gas leakage and smoke leakage at the furnace mouth due to excessive pressure in the furnace top space

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