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Automatic fluorine removal agent adding system

An automatic dosing and fluoride removal technology, which is applied in water treatment parameter control, water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of inaccurate manual dosing and waste of dosing, and achieve sewage The treatment system is stable, the treatment cost is saved, and the effect of avoiding the waste of medicine

Inactive Publication Date: 2020-06-05
SHENZHEN CHANGLONG TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide an automatic dosing system for defluorinating agent to solve the problem of waste of dosing caused by inaccurate manual dosing, and to stabilize the concentration of fluoride ions in the effluent after adding an appropriate amount of defluorinating agent to the sewage containing fluoride. standard

Method used

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  • Automatic fluorine removal agent adding system

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Embodiment (1

[0027] like figure 1 As shown, the defluoridation agent automatic dosing system of the present invention includes: on-line fluoride ion meter ① and on-line fluoride ion meter ②, flow meter, PLC system, touch screen, frequency conversion dosing pump, defluoride agent storage tank. Among them, the online fluoride ion meter can measure the fluoride ion concentration in the sewage in real time, and transmit the tested fluoride ion concentration signal to the PLC controller; the PLC controller can receive the output signals of the online fluoride ion meter and flow meter, and perform logic operations. And output the signal to the frequency conversion dosing pump to adjust the dosing amount of the defluoridation agent.

[0028] In this embodiment, the automatic dosing system for defluoridation agent is a closed-loop control system composed of online fluoride ion meter, flow meter, PLC controller and frequency conversion dosing device, which enhances the reliability and stability of ...

Embodiment (2

[0036] In a sewage plant in Henan Province, the water volume is 1-20,000 cubic meters per day, the fluoride ion concentration is 5-15 mg / L, and the fluoride ion discharge standard is 3.0 mg / L. Before the automatic dosing system of this embodiment was adopted, Shenzhen Changlong The liquid defluorinating agent (Type II) produced by Technology Co., Ltd. is used for defluorinating, and the dosage of the defluorinating agent is 6.7 tons / day. After the defluoridation agent automatic dosing system of this embodiment is used for dosing the defluorination agent, the dosage of the defluorination agent is 5.5 tons / day, and the concentration of fluorine ion in the effluent is stable between 2.80-2.95 mg / L. By adopting the automatic dosing system of the present invention, 438 tons of fluoride-removing agent can be saved every year, and the cost of fluorine-containing waste water treatment agent can be saved as high as 18%. Therefore, the defluoridation agent automatic dosing system of the...

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Abstract

The invention provides an automatic fluorine removal agent dosing system, which comprises two online fluorine ion meters, which are used for analyzing fluorine ion concentrations before and after a liquid fluorine removal agent is added into sewage; a flow meter used for metering the amount of the fluorine-containing sewage; a defluorinating agent storage tank used for storing a defluorinating agent and connected with a variable-frequency dosing pump through a pipeline; a PLC receiving output signals of the on-line fluorinion meter and the flow meter and outputting the control signals; a touchscreen used for displaying the PLC and setting and modifying parameters; and the variable-frequency dosing pump used for adjusting the dosing amount of the liquid defluorination agent according to the control signal of the PLC. According to the automatic fluorine removal agent adding system, fluorine removal agent loss caused by inaccurate manual agent adding can be avoided, in addition, the automatic fluorine removal agent adding system can further save labor cost, the concentration of fluorine ions in effluent stably reaches an emission standard, and good economic benefits are generated forsewage treatment enterprises.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to an automatic dosing system for defluoridation agent for the treatment of fluorine-containing sewage. Background technique [0002] In the production process of semiconductor, glass industry, coking, coal chemical industry, metallurgy, phosphorus chemical industry and other industries, sewage containing fluoride ions is often produced. Fluorine has a strong affinity for calcium and phosphorus in the human body, it can destroy the normal metabolism of calcium and phosphorus in the body, and can inhibit the activity of certain enzymes, which will cause a series of diseases including: dental fluorosis, skeletal fluorosis, Kidney, liver, brain damage, immune dysfunction, pulmonary edema, pulmonary hemorrhage, mental decline in children and other diseases. In order to reduce the fluoride ion in the sewage below the discharge standard, it is necessary to add liquid defluoridation agent....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/58
CPCC02F1/583C02F2209/005
Inventor 伏振宇朱文渊周友元袁久婷周小峰董林辉陈煜辉蔡振山
Owner SHENZHEN CHANGLONG TECH CO LTD
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