Coaling method for a coke oven vehicle

A coke oven and coal charging technology, which is applied in the coal charging field of 7.63m coke oven vehicles, can solve problems such as gas leakage and smoke leakage at the furnace mouth, and achieve the effects of reducing the temperature of the furnace top space, increasing coke production, and increasing the amount of coal loaded

Active Publication Date: 2014-04-16
SHANXI TAIGANG STAINLESS STEEL CO LTD
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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

Method used

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  • Coaling method for a coke oven vehicle
  • Coaling method for a coke oven vehicle

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Embodiment Construction

[0012] Such as figure 1 and figure 2 As shown, a 7.63m coke oven vehicle coal charging method makes the four coal inlets of the coke oven carbonization chamber correspond to the coal lower coal outlets of the four spiral coal lowering devices of the coal loading car, and the motor starts to be controlled by an industrial automation logic controller. Running, the motor is controlled by a frequency converter, and the industrial automation logic controller adjusts the instantaneous and total coal loading volume of the coal loading car by controlling the motor, and adjusts the motor in real time according to the pre-loading coal volume of the coal hopper (coke oven carbonization chamber). Rotation speed, so as to control the screw speed of the screw rod of the coal loading car spiral unloading device, so that the four spiral unloading coal devices can delay the unloading of coal, and 90% of the pre-loaded coal in the coke oven carbonization chamber can be completed after the four...

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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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10B31/00
Inventor 苟晓峰
Owner SHANXI TAIGANG STAINLESS STEEL CO LTD
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