Calibration method of coke discharge quantity in CDQ oven

Abstract

The invention discloses a method for calibrating the amount of coke discharged in a dry quenching coke oven. The first coke discharge value and the test amount of the test point are input in the man-machine interface, and the system control equipment reads the current time, and reads the time installed in the CDQ. The height value of the material level in the furnace currently sent by the upper material level detection device of the coke oven is used to calculate the current stock volume, and the value of the first coke discharge amount is obtained through the corresponding first analog value through the curve corresponding to the coke discharge amount, and the system control equipment outputs The first analog quantity is sent to the controller of the vibrating discharge device, and the vibrating discharge device starts to vibrate and discharge until the material level in the furnace drops to a certain value. High coke weight, the system control equipment reads the current time, calculates the test time and coke discharge amount, the coke discharge amount replaces the first coke discharge amount and corresponds to the first analog quantity, and refreshes the curve of the analog quantity corresponding to the coke discharge amount. The invention can simplify the calibration process of coke discharge quantity, which can also be carried out in the normal production process of CDQ coke oven.

Description

technical field [0001] The invention relates to a method for checking the coke discharge amount of CDQ ovens in metallurgical coking, especially in the occasion where multiple CDQ ovens jointly discharge coke to a conveyor belt conveyor. Background technique [0002] In metallurgical CDQ coking, it is necessary to put the high-temperature red coke at 1000°C after carbonization in the coke oven into a CDQ oven (or CDQ furnace) for extinguishing, and put the high-temperature red coke into a closed CDQ furnace to be extinguished with air. Insulate and cool the high-temperature red coke by circulating nitrogen. The coke tank transports the high-temperature red coke from the coke oven into the furnace from the upper part of the CDQ furnace, and the coke cooled by nitrogen is continuously discharged out of the furnace from the lower part of the CDQ furnace. The coke discharge control of the CDQ furnace is an important index in the CDQ production process, which affects the pressur...

AI Technical Summary

Problems solved by technology

[0006] The prior art CDQ coke discharge coke discharge calibration method has the following major defects: Since the CDQ coke discharge vibration coke discharge device needs to be checked once every 1-3 months under normal conditions

In addition, after the device is overhauled or when it is found that there is a large difference between the set value and the actual coke discharge amount, it is also necessary to check the coke discharge amount.

1. In the prior art, the calibration of the amount of coke discharge in CDQ ovens needs to interrupt the normal production process for calibration, which affects the normal production

2. The calibration process of the amount of coke discharge is complex, involving many people, and time-consuming

3. It is necessary to use tools such as coke containers, scales, and transport vehicles, which are expensive

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