Intelligent control method for gypsum preparation
An intelligent control and gypsum technology, applied in the field of gypsum production, can solve the problems of low overall level of operating personnel, unreliable desulfurization system, high labor cost, etc., achieve considerable economic and social benefits, avoid the expansion of accidents, and reduce energy consumption. Effect
Inactive Publication Date: 2019-02-22
ELECTRIC POWER SCI & RES INST OF STATE GRID TIANJIN ELECTRIC POWER CO +2
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Problems solved by technology
At present, there are many operating equipment in the desulfurization pulping system, including pulp pump, hydrocyclone, vacuum belt filter and other equipment. The overall level of desulfurization system operators is low, and they are used to manual operation of various equipment. Unable to meet the needs of the process, high labor costs, low production efficiency, and unreliable operation of the desulfurization system have become important problems to be solved urgently in the desulfurization system
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[0034] The present invention is further described in detail through the following examples, but the technical content described in this example is illustrative rather than limiting, and should not limit the protection scope of the present invention accordingly.
[0035] An intelligent control method for gypsum preparation, the innovation of the present invention lies in: comprising the following steps:
[0036] (1) Start the vacuum filter belt conveyor first, and then start the slurry discharge pump;
[0037] ⑵Vacuum filter belt conveyor and slurry pump enter into automatic operation mode respectively;
[0038] (3) The thickness gauge set by the vacuum filter belt machine automatically detects the thickness of the gypsum and adjusts it;
[0039] ⑷The pressure detector at the outlet of the slurry pump automatically detects the outlet pressure of the slurry pump and adjusts it;
[0040] ⑸ Repeat steps ⑶ and ⑷ continuously until the production is completed; when there is a fail...
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The invention relates to an intelligent control method for gypsum preparation. The method comprises the following steps that: step one, a vacuum filtering belt conveyor is started and then a slurry drain pump is started; step two, the vacuum filtering belt conveyor and the slurry drain pump enter automatic operation modes respectively; step three, a thickness gauge arranged at the vacuum filteringbelt conveyor detects the gypsum thickness automatically and carries out adjustment; step four, a pressure detection instrument arranged at the outlet of the slurry drain pump detects the pressure atthe outlet of the slurry drain pump automatically and carries out adjustment; and step five, the steps three and four are repeated continuously until production is completed; and the equipment is stopped automatically when a fault occurs in the production process. According to the invention, a PID regulator is used and an advanced control mode is employed; and since the slurry drain pump outlet pressure adjustment system and the gypsum thickness adjustment system are integrated ingeniously to realize high stability of the slurry drain pump outlet pressure and the gypsum thickness. Therefore,the process level is improved and the intelligent control of the process is realized.
Description
technical field [0001] The invention belongs to the technical field of gypsum production, in particular to an intelligent control method for gypsum 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 the flue gas desulfurization system has become a matter of great concern to thermal power companies. In the wet desulfurization system of thermal power plants, gypsum is the main component of flue gas desulfurization The main product of the chemical reaction, among which the quality of gypsum, the stability of the gypsum preparation system and other factors affect the efficiency and safe operation of the desulfurization system. At present, there are many operating equipment in the desulfurization pulping system, including pulp pump, hydrocyclone, vacuum belt filter and other equipment. The overall l...
Claims
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IPC IPC(8): G05B19/418
CPCG05B19/41865G05B2219/32252
Inventor 赵毅张长志李浩然倪玮晨王建军周连升甘智勇张应田郑卫洪曹晓男杜岩郭凌旭鄂志君陈天恒杨晓静段建勋冯长强张志良沙威欧阳佳慧
Owner ELECTRIC POWER SCI & RES INST OF STATE GRID TIANJIN ELECTRIC POWER CO