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Fuzzy control method and system for dust removal of dust collector

A technology of fuzzy control and dust collector, which is applied in the field of waste incineration flue gas treatment, can solve the problems of many variables and difficult realization, and achieve the effect of prolonging service life, overcoming uneven load, and realizing automatic injection

Active Publication Date: 2018-06-08
EVERBRIGHT ENVIRONMENTAL PROTECTION TECH RES INST SHENZHEN CO LTD +1
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

Usually, it is a very complicated job to judge the load of each chamber through the differential signal of the inlet and outlet of the dust collector and the differential pressure signal of each chamber. It is difficult to use the classical control method because there may be too many variables.

Method used

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  • Fuzzy control method and system for dust removal of dust collector
  • Fuzzy control method and system for dust removal of dust collector
  • Fuzzy control method and system for dust removal of dust collector

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Embodiment Construction

[0023] In the following description, numerous specific details are given in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without one or more of these details. In other examples, some technical features known in the art are not described in order to avoid confusion with the present invention.

[0024] In order to provide a thorough understanding of the present invention, detailed method steps and / or structures will be set forth in the following description. It is evident that the practice of the invention is not limited to specific details familiar to those skilled in the art. Preferred embodiments of the present invention are described in detail below, however, the present invention may have other embodiments besides these detailed descriptions.

[0025] It should be understood that when the terms "comprising" and / or "comprising" are used in this sp...

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Abstract

The invention discloses a fuzzy control used for ash cleaning of a deduster and a system. The fuzzy control method comprises steps of receiving a detection input transmitted by the detection device, calculating the deviation between detection input and a given value and a deviation changing rate as an input variable of the fuzzy control, fuzzifying the input variable into a fuzzy input, performing fuzzy inference and decision based on the fuzzy input in order to obtain fuzzy output and defuzzifying the fuzzy output as control output, and outputting the control output to a deduster pulse valve controller in order to control the switch of the pulse valve of the deduster, wherein the detection input comprises pressure difference of the outlet and inlet of the deduster and inlet and outlet pressure difference of various chambers of the deduster; and the control output is the dust cleaning time of various chambers of the deduster. The above method and the system adopt the fuzzy control strategy to realize the dedusting control of various chambers of the deduster, and can solve the dust cleaning problem under the condition that the filtering loads of the filtering bags of various chambers are not uniform.

Description

technical field [0001] The invention relates to the field of garbage incineration flue gas treatment, in particular to a fuzzy control method and system for dust removal of dust collectors. Background technique [0002] At present, the relatively mature process of waste incineration flue gas purification is semi-dry method + dry method + bag dust removal + activated carbon process. The key equipment for flue gas treatment includes: semi-dry method deacidification reaction tower, dust collector, SNCR, and fly ash collection. Among them, the dust collector is used to collect fine dust in the flue gas, and at the same time collect lime powder and activated carbon to allow the harmful substances in the flue gas to continue to react and further process and filter harmful and toxic gases. The operation of the dust collector directly affects the dust concentration of the flue gas emission, which in turn affects environmental protection. Among them, the dust cleaning process of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B13/04B01D46/02
Inventor 陈涛胡建民邵哲如王健生朱亮张二威钱中华洪益州曹伟杨应永
Owner EVERBRIGHT ENVIRONMENTAL PROTECTION TECH RES INST SHENZHEN CO LTD
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