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Intelligent control method for preparing limestone slurry

A technology of limestone slurry and intelligent control, applied in separation methods, chemical instruments and methods, and separation of dispersed particles, can solve the problems of no published patent documents, reduce equipment loss and energy waste, ensure stability, and manufacture The effect of pulp density stabilization

Active Publication Date: 2012-10-17
STATE GRID TIANJIN ELECTRIC POWER +1
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Problems solved by technology

[0004] By searching domestic published patent documents, no published patent documents similar to the method of the present invention are found

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  • Intelligent control method for preparing limestone slurry

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Embodiment Construction

[0037] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be emphasized that the embodiments of the present invention are illustrative rather than limiting, so the present invention is not limited to the implementation described in the specific embodiments. For example, all other implementations obtained by those skilled in the art according to the technical solution of the present invention also belong to the protection scope of the present invention.

[0038] A kind of limestone slurry preparation intelligent control method, limestone slurry preparation system such as figure 1 As shown, the working steps are as follows:

[0039] (1) The computer control device starts the related equipment in the limestone slurry preparation system in sequence:

[0040] ① Start the water supply pump: the operator starts the operation of the water supply pump through the button of the computer control device;

[004...

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Abstract

The invention relates to an intelligent control method for preparing limestone slurry. The method mainly comprises the following steps of: (1) sequentially starting related equipment for preparing limestone slurry through a computer control device; (2) performing automatic feedback regulation employing two sets of operating processes with automatic liquid level regulation and automatic density regulation, wherein the computer control device judges the difference e1 between the current liquid level value L and a standard liquid level value L0 of a slurry tank according to the reading of a liquid level meter, judges the difference e2 between the current actual slurry density value p and a standard density value p0 according to the reading of a densimeter and takes the differences e1 and e2 as regulation parameters of regulating the opening of a door and a feeder; and (3) automatically stopping a slurry preparing system. By adoption of intelligent control, the start of the slurry preparing system, stable operation of the slurry preparing process and operation stop after the slurry preparation are automatically controlled, the method is proper in slurry preparing density and reasonable in slurry preparing speed, the technical level is improved, and the process flow and equipment safety are guaranteed.

Description

technical field [0001] The invention belongs to the technical field of desulfurization process control, and specifically relates to an intelligent control method for limestone slurry preparation. Background technique [0002] With the rapid development of the thermal power industry and the gradual improvement and standardization of my country's environmental protection system, the investment and stable operation of flue gas desulfurization process equipment has become a matter of great concern to thermal power companies. In the wet desulfurization process of thermal power plants, limestone slurry is the main raw material for the chemical reaction of flue gas desulfurization. Factors such as the concentration of limestone slurry and the pulping rate affect the efficiency and safe operation of the desulfurization process. At present, there are many operating equipment in the desulfurization pulping system, such as figure 1 As shown, it includes limestone powder bin, feeder, n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/80B01D53/48
Inventor 陈涛张应田
Owner STATE GRID TIANJIN ELECTRIC POWER
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