Pot furnace flame path negative pressure automatic control system and method

Abstract

The invention relates to a negative pressure automatic control system and method, and especially relates to a pot furnace flame path negative pressure automatic control system and method, wherein the pot furnace is used for producing anodes, cathodes, electrodes and carbon graphitized materials which are used for aluminium in the carbon industry. The pot furnace flame path negative pressure automatic control system is formed in a way that a first layer flame path entrance is provided with a pressure detection transmitter, the pressure detection transmitter is connected with the input terminal of a controller, the output terminal of the controller is connected with an actuator, and the actuator is connected with a flame path negative pressure pulling plate. The pot furnace flame path negative pressure automatic control system is advantaged in that the opening degree of the flame path negative pressure pulling plate can be automatically adjusted according to the position of each first layer flame path entrance, furthermore the pressure of the flame path entrance is controlled accurately, and therefore the pressure distribution of the whole flame path is controlled. It is guaranteed that the length of the flame in the flame path is moderate, and the production stability and the thermal efficiency of the pot furnace can be improved.

Description

technical field [0001] The invention relates to a negative pressure automatic control system and method, in particular to a tank type furnace fire channel negative pressure automatic control system and method for producing aluminum anodes, cathodes, electrodes and carbon graphitized materials in the carbon industry. Background technique [0002] Due to the use of indirect heating mode, the tank-type calciner is favored by the market because of its uniform material heating rate, small burning loss, and high product quality. However, the tank-type calciner has a low level of control during the production process and relies entirely on the state of the furnace body itself. And operating experience, it is necessary to improve the tank furnace automatic control technology. The negative pressure control is the premise and foundation of the temperature control of the tank furnace. The overall negative pressure of the furnace body depends on the flue gate, while the negative pressu...

AI Technical Summary

Problems solved by technology

[0002] Due to the use of indirect heating mode, the tank-type calciner is favored by the market because of its uniform material heating rate, small burning loss, and high product quality. However, the tank-type calciner has a low level of control during the production process and relies entirely on the state of the furnace body itself. and operating experience, so it is necessary to improve the automatic control technology of the retort furnace

The negative pressure control is the premise and foundation of the temperature control of the tank furnace. The overall negative pressure of the furnace body depends on the flue gate, while the negative pressure adjustment in a single flue depends on the negative pressure pull plate adjustment. The negative pressure control of a single fire path will cause insufficient combustion of volatile matter or large fluctuations in the temperature of the fire path, which will affect the furnace production capacity and product quality

Images