A kind of large-scale coke oven coking process carbonization chamber pressure regulation and control device and method

Abstract

The invention relates to a device and method for adjusting and controlling the pressure of a carbonization chamber in the coking process of a large coke oven. The device includes a riser cover control device, an ammonia water injection device, a carbonization chamber pressure detection device, a pressure regulating device, a mathematical modeling device and a control device. Based on the characteristics of the coking time of the coke oven and the pressure of the carbonization chamber, the mathematical modeling device uses mechanism analysis and myopia processing to establish a dynamic mathematical model for the pressure control of the carbonization chamber, divides the whole coking process into several stages, and obtains the pressure target of each stage Set value; the carbonization chamber pressure detection device detects and collects the pressure data of the coke oven carbonization chamber, the control device compares the actual coking time and the target coking time, and outputs the pressure setting value corresponding to each stage as the pressure adjustment target value of a single carbonization chamber Provide pressure regulating equipment to realize the regulation and control of the carbonization chamber pressure. The invention has a high degree of production automation, can greatly improve production efficiency, and at the same time greatly reduce labor costs.

Description

technical field [0001] The invention belongs to the technical field of coke ovens, and in particular relates to an automatic control device and method for adjusting the pressure of a single carbonization chamber during coking of a large coke oven, which can conveniently realize the adjustment of the pressure of the carbonization chamber during the coking process of a large coke oven. Background technique [0002] At present, the new coke oven must integrate large-scale, environmental protection, mechanization and automation. The coke oven system has generally adopted automatic control technology, and the traditional coke oven’s extensive adjustment method for the suction pipe pressure is changed to by adjusting each carbonization. The fine adjustment method of controlling the pressure of the gas collecting pipe by using the rising pipe pressure of the chamber, and realizes the fully automatic operation of the coking process of each carbonization chamber, reduces the labor int...

AI Technical Summary

Problems solved by technology

[0004] 1) The pressure control of the carbonization chamber of the coke oven is adjusted by the main pipe of the gas collector, the pressure of each carbonization chamber is unbalanced, and has a great influence with coal loading and coke pushing;

[0005] 2) When the coke oven is charged with coal, because the carbonization chamber is charged with positive pressure, the phenomenon of smoke, fire and dust from the coal charging hole is serious;

[0006] 3) When pushing coke, the ascending pipe is directly connected with the gas collecting pipe and the atmosphere, so it is very easy to string air into the raw gas system, resulting in high oxygen content;

[0007] 4) When coking, the pressure of each carbonization chamber is unbalanced, which affects the quality of coke, and the recovery rate of raw gas is not very high;

[0008] 5) The degree of production automation is low, which greatly reduces production efficiency and greatly increases labor costs

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