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
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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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