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Pressure stabilization adjusting method for gas collecting pipe of coke oven

A technology for voltage regulation and gas collector pressure, applied in the field of coke ovens, can solve problems such as visible pollution, achieve the effects of reducing pressure fluctuations, improving emergency response capabilities, improving configuration capabilities and pressure regulation levels

Active Publication Date: 2021-12-03
BAOSHAN IRON & STEEL CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the pressure of the gas collecting pipe rises very quickly when the exhaust fan is shut down, the ignition and release system has no time to respond, and some rising pipe covers will be washed away, and the raw gas will be discharged directly without ignition and combustion, resulting in serious visible pollution

Method used

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  • Pressure stabilization adjusting method for gas collecting pipe of coke oven

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Embodiment Construction

[0033] see figure 1 , the coke oven gas collecting pipe voltage stabilizing and regulating method of the present invention, it comprises:

[0034] 1) Suction pipe double flap adjustment

[0035] The raw coal gas produced during the coking coal carbonization process in the carbonization chamber of the coke oven 1 is collected to the gas collecting pipe 4 through the ascending pipe 2 and the bridge pipe 3, and then connected to the gas exhaust fan 6 through the suction pipe 5 and then purified and treated. The suction pipe 5 is connected in series Two pressure regulating flaps 7, 7' are provided, and the adjustment ranges of the openings of the two pressure regulating flaps 7, 7' are both 10% to 80%;

[0036] 2) Ignition and release system control

[0037]Control the pressure change rate V of the air collecting pipe 4, V=ΔP / T, V unit Pa / ms, ΔP is the pressure change of the air collecting pipe 4, the unit is Pa, T time, the unit is ms; The pressure rises rapidly. When the pres...

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Abstract

The invention provides a pressure stabilization adjusting method for a gas collecting pipe of a coke oven. The method comprises the following steps: 1) adjusting double turning plates of a gas suction pipe; 2) ignition diffusion system control: controlling the pressure change rate V of a gas collecting pipe, V = delta P / T; (3) riser pipe cover control: when the bridge pipe turning plate is in an open state, the riser pipe cover is in an open signal, and the system makes a riser pipe cover closing action until a riser pipe cover closing signal appears; and if the closing signal of the riser tube cover cannot be received, outputting an alarm and instructing post personnel to process on site. The pressure fluctuation of the gas collecting pipe under the normal production condition can be effectively controlled, the diffusion of a large amount of raw gas caused by the pressure surge of the gas collecting pipe and the carbonization chamber under the sudden abnormal condition of the gas exhaust fan is avoided, the visible pollution and the VOCs emission are reduced, and the coke oven operation environment is improved.

Description

technical field [0001] The invention relates to coke oven technology, in particular to a method for stabilizing and regulating the pressure of a coke oven gas collecting pipe. Background technique [0002] The raw coal gas generated during the coking coal dry distillation process in the carbonization chamber is collected to the gas collecting pipe through the riser pipe and the bridge pipe, and then connected to the gas exhaust fan through the suction pipe and then purified. Due to the regular changes in the amount of raw gas generated during the coking coal carbonization process in the carbonization chamber, the pressure of the gas collection pipe changes accordingly. Manual and automatic adjustment flaps are arranged on the suction pipe to control the pressure of the gas collection pipe in a closed-loop manner. The front negative pressure is also closed-loop controlled to keep the gas collecting pipe pressure in a relatively stable state and avoid the escape of raw gas dur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10B41/08C10B27/00C10B27/06
CPCC10B41/08C10B27/00C10B27/06
Inventor 刘杰徐昶辉马寅元许永跃周海忠
Owner BAOSHAN IRON & STEEL CO LTD
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