Automatic control device of active coke adsorption tower flue gas balance system

Abstract

The invention belongs to the field of environmental protection production automation control, and particularly relates to an automatic control device of an active coke adsorption tower flue gas balance system, which is characterized by comprising a gas flow meter and a flow transmitter arranged on a booster fan outlet main pipe, and a pressure transmitter arranged on an inlet branch pipe of an air inlet chamber of each adsorption unit, the pressure transmitter and the thermal resistor of each adsorption unit transition air chamber, the pressure transmitter on the outlet branch pipe of each adsorption unit air outlet chamber, the electric butterfly valve on the outlet branch pipe of each adsorption unit air outlet chamber, and the pressure transmitter, the thermal resistor and the electric butterfly valve at different positions of each adsorption unit are connected with the PLC system. The device is not affected by the steps of element machining, manufacturing, assembling, welding and the like of each adsorption unit, the resistance coefficient zeta of each adsorption unit is measured under the actual production working condition, and therefore the smoke flow of each adsorption unit is obtained, the smoke amount is controlled by adjusting an outlet electric butterfly valve, and automatic control over the tower-attached smoke balance system is truly achieved.

Description

technical field [0001] The invention belongs to the field of automatic control of environmental protection production, and in particular relates to an automatic control device for the flue gas balance system of an active coke adsorption tower. Background technique [0002] With the implementation of ultra-low emission standards for industrial flue gas, the flue gas purification system has gradually become an indispensable process for sintering and thermal power generation. At present, flue gas purification mainly includes dry, semi-dry and wet desulfurization processes. In recent years, more and more attention has been paid to activated coke dry desulfurization, and the process has become the first choice for flue gas purification. In the activated coke flue gas purification project, the adsorption tower is the core equipment, because the flue gas purification is completed in the adsorption unit of the adsorption tower, and the flue gas is fully in contact with the active co...

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Problems solved by technology

[0004] The purpose of the present invention is to provide an automatic control device for the flue gas balance system of the activated coke adsorption tower, so as to solve the phenomenon of slow operation and adjustment after the flue gas of each adsorption unit between the adsorption towers is unbalanced, which can improve the productivity of the purification system and shorten the abnormal discharge exceeding the standard The time to make the flue gas purification system run stably and efficiently

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