A method for stabilizing and regulating the pressure of a coke oven gas collecting pipe

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

Active Publication Date: 2022-06-28
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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  • A method for stabilizing and regulating the pressure of a coke oven gas collecting pipe

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Experimental program
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Embodiment Construction

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

[0034] 1) Suction pipe double flap adjustment

[0035] The waste gas generated during the dry distillation of coking coal in the carbonization chamber of coke oven 1 is collected into the gas collecting pipe 4 through the riser pipe 2 and the bridge pipe 3, and then connected to the gas exhaust fan 6 through the suction pipe 5 and led out for purification treatment, and the suction pipe 5 is connected in series Two pressure regulating flaps 7, 7' are provided, and the adjustment ranges of the opening degrees of the two pressure regulating flaps 7, 7' are both 10% to 80%;

[0036] 2) Ignition emission system control

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

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Abstract

A coke oven gas collecting pipe pressure stabilization method, which includes: 1) suction pipe double flap adjustment; 2) ignition and release system control, controlling the pressure change rate V of the gas collecting pipe, V=ΔP / T; 3) rising pipe Cover control, when the bridge tube flap is in the "open" state, the riser pipe cover is in the "open" signal, and the system will make the riser pipe cover close action until the riser pipe cover "close" signal appears; When the "close" signal of the riser pipe cover is received, an alarm is output and the personnel on the post are instructed to deal with it on the spot. The invention can effectively control the pressure fluctuation of the gas collecting pipe under normal production conditions, and avoid a large amount of waste gas from being released due to the pressure surge of the gas collecting pipe and the carbonization chamber under the sudden abnormal situation of the gas exhaust fan, reduce visible pollution and VOCs emissions, and improve coke oven operation surroundings.

Description

technical field [0001] The invention relates to coke oven technology, in particular to a method for regulating voltage regulation of a coke oven gas collecting pipe. Background technique [0002] The waste gas produced in the process of dry distillation of coking coal 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 led out for purification treatment. Due to the regular changes in the amount of waste gas generated during the dry distillation of coking coal in the carbonization chamber, the pressure of the gas collecting pipe changes accordingly. The manual and automatic adjustment flaps are arranged on the suction pipe, and the pressure of the gas collecting pipe is closed-loop controlled. At the same time, the gas exhaust fan and the fan The front negative pressure is also closed-loop controlled to keep the pressure of the gas collecting pip...

Claims

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Application Information

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Patent Type & Authority Patents(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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