Fuzzy control method used for ash cleaning of deduster and system

A technology of fuzzy control and dust collector, applied in the field of waste incineration flue gas treatment, can solve problems such as difficulty in realization and many variables, and achieve the effect of prolonging service life, overcoming uneven load and realizing automatic injection.
CN105159092AActive Publication Date: 2015-12-16EVERBRIGHT ENVIRONMENTAL PROTECTION TECH RES INST SHENZHEN CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
EVERBRIGHT ENVIRONMENTAL PROTECTION TECH RES INST SHENZHEN CO LTD
Publication Date
2015-12-16

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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.
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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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