Chemicals feeding device

Abstract

The invention discloses a chemicals feeding device which comprises a storage box and a plurality of stirring machines, wherein the storage box is internally provided with a vibration motor; one ends of the stirring machines are connected with a pneumatic diaphragm pump, the storage box is connected with the stirring machines through a control valve, and the control valve comprises a star-type cinder valve, a manually-operated flap valve and a splitting valve; and the manually-operated flap valve is connected with the storage box, the splitting valve is connected with the stirring machines, and the star-type cinder valve is arranged between the manually-operated flap valve and the splitting valve. The chemicals feeding device provided by the invention can be used for automatically or manually controlling the cast of materials through a control system, the operation is convenient, the automaticity is high, and the efficiency of sewage treatment is greatly improved; and meanwhile, the control valve is arranged between the storage box and the control valve, the baiting of the material is smooth, the releasing speed of the material is effectively controlled, the pipeline and the valve have less possibility of being blocked, and the device is convenient to use.

Description

technical field [0001] The invention relates to a dosing device, in particular to a dosing device for sewage treatment. Background technique [0002] The main component of lime is calcium hydroxide, which is a fine white powdery object, which is a slightly soluble substance, and its solubility in water at 20°C is only 0.165%. The aqueous solution is strongly alkaline, and the dust has certain volatility. [0003] The main function of adding lime is to adjust the pH of the water body, and at the same time, the lime can help the coagulation of the colloidal particles in the water body. As a particle nucleus weighting agent, lime has the functions of accelerating the precipitation and separation of insoluble matter, improving the effect of coagulation and precipitation, and increasing the chemical stability of water. [0004] Since lime is slightly soluble in water and cannot be completely dissolved in water, the prepared lime solution is in the state of milky solution with pa...

AI Technical Summary

Problems solved by technology

[0004] Since lime is slightly soluble in water and cannot be completely dissolved in water, the prepared lime solution is in the state of milky solution with particulate matter, which is easy to deposit during pipeline transportation, and it is easy to block the pipeline after a long time. Dilute with water to reduce the concentration of lime during the addition process, the prepared solution is not easy to store in the dissolution tank for too long

[0005] The metering pumps and valves of the existing dosing device are often easily blocked, and the dosage of lime is not easy to control, and the degree of automation is low, which seriously affects the normal operation of sewage treatment

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