Horizontal sedimentation tank dosing control system
A technology of advection sedimentation tank and control system, which is applied in the field of dosing control system of advection sedimentation tank to achieve the effect of improving work efficiency and work quality and reducing material consumption
Inactive Publication Date: 2019-01-25
SHANXIN SOFTWARE CO LTD
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Problems solved by technology
[0004] In view of the deficiencies and defects in the prior art, the present invention provides a dosing control system for advection sedimentation tanks to solve the problems of accurately dosing the sedimentation tanks so as to reduce material consumption and improve the working efficiency and quality of the sedimentation tanks
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[0065] In order to make the technical solutions and beneficial effects of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only for understanding the present invention and are not intended to limit In the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0066] The present invention is an automatic control system with a programmable logic controller (PLC) as the core, and all its input, output and process control signals are transmitted in a continuous and real-time manner. like figure 2 As shown, the system control method is composed of three regulating loops, which are PAC flow regulating loop, PAM flow regulating loop and lime milk flow regulating loop.
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The invention discloses a horizontal sedimentation tank dosing control system, and mainly relates to the technical field of sewage treatment. The system adopts a PLC controller as a core, an input device is provided with a sedimentation tank inlet flowmeter, a PAC flowmeter, a PAM flowmeter and a lime milk flowmeter, an output device includes a PAC metering pump, a PAM metering pump and a lime milk metering pump, the PAC metering pump, the PAM metering pump and the lime milk metering pump are all frequency-driven metering pumps, which can adjust the pump body output by changing the operating frequency of a driving motor, the sedimentation tank inlet flowmeter inputs a detected water flow result into PLC, based on which, the PLC calculates PAC, PAM and lime milk demands and adjusts the operating frequency of the PAC metering pump, the PAM metering pump and the lime milk metering pump to automatically match the dosage of coagulating agents with the inlet amount of sewage, the automatic adjustment of the dosage of the sedimentation tank is achieved, and the system has a direct effect on improving the dosing precision and quality of the sedimentation tank.
Description
technical field [0001] The invention mainly relates to the technical field of sewage treatment, in particular to a dosing control system for an advection sedimentation tank. Background technique [0002] In sewage treatment, after primary sedimentation, sand pumping, stirring, biological reaction, re-precipitation, filtration and other processes, it enters the reuse water system, and the sludge in the remaining water enters the sludge concentration tank to further increase the concentration of sludge, and then pass through the sludge The sludge pump transports the hydrated sludge to the sludge tank for further sedimentation, and then the sludge pump pumps the sludge from the sludge tank to the sludge desilter to dehydrate the sludge for subsequent transportation and further processing. The treated sewage can be discharged up to the standard or reused; in the sewage treatment process, in order to accelerate the precipitation of these impurities and remove harmful substances, ...
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IPC IPC(8): C02F1/52C02F1/56
CPCC02F1/008C02F1/5236C02F1/56
Inventor 李春雷靖长续杨桢
Owner SHANXIN SOFTWARE CO LTD