Pressure regulating device for coke oven carbonization chamber and fuzzy control method thereof

Abstract

The invention discloses a pressure regulating device for a coke oven carbonization chamber and a fuzzy control method thereof. The method comprises the following steps: acquiring a state signal of the coke oven carbonization chamber, and judging the state of the coke oven carbonization chamber; acquiring the pressure value of the coke oven carbonization chamber; calculating deviation between the pressure set value and actual value and the deviation change rate; carrying out fuzzy treatment on the deviation and deviation change rate; and after the fuzzy PID (proportional-integral-derivative) operation, outputting a kinematic trajectory of a servo-cylinder, thereby controlling the pressure of the coke oven carbonization chamber to fluctuate within a small set value range. The fuzzy control method disclosed by the invention overcomes the defect of complex and unstable pressure of the coke oven carbonization chamber, and has the advantages of strong system robustness, quick reaction speed and high antijamming capability.

Description

technical field [0001] The invention relates to a coke oven carbonization chamber pressure regulating device and a fuzzy control method thereof. Background technique [0002] In the traditional process, the raw coal gas produced in each carbonization chamber of the coke oven enters the gas collecting pipe through the riser pipe and the bridge pipe, and a negative pressure is formed at the other end of the gas collecting pipe through a blower, so that the raw gas in the gas collecting pipe is sucked away, and the entire coke oven group The pressure of raw gas is controlled by a regulating valve installed on the gas collection pipe. Due to the different coking states of each carbonization chamber, the process of charging coal and pushing coke in the carbonization chamber fluctuates, and the overall stability of the system is poor, which can easily lead to gas shortage in the gas collection pipe. Backflow into the carbonization chamber, leakage of the furnace wall of the carbon...

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Problems solved by technology

[0002] In the traditional process, the raw coal gas produced in each carbonization chamber of the coke oven enters the gas collecting pipe through the riser pipe and the bridge pipe, and a negative pressure is formed at the other end of the gas collecting pipe through a blower, so that the raw gas in the gas collecting pipe is sucked away, and the entire coke oven group The pressure of raw gas is controlled by a regulating valve installed on the gas collection pipe. Due to the different coking states of each carbonization chamber, the process of charging coal and pushing coke in the carbonization chamber fluctuates, and the overall stability of the system is poor, which can easily lead to gas shortage in the gas collection pipe. Backflow into the carbonization chamber, leakage of the furnace wall of the carbonization chamber, yellow smoke from the furnace body and other adverse consequences

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