Continuous unpowered dosing and mixing device

Abstract

The invention relates to a continuous unpowered dosing and mixing device which comprises a variable-frequency dosing module, a treated water inlet pipe, an impeller, a dosing pipe, a first fixing support, a mixed fluid pipeline, a second fixing support, a stirring shaft and a mixed water outlet pipe, one end of the mixed fluid pipeline is communicated with the treated water inlet pipe, and the other end of the mixed fluid pipeline is communicated with the mixed water outlet pipe. The side wall is communicated with the medicine inlet pipe, the variable-frequency medicine adding module is communicated with the medicine inlet pipe, the first fixing support and the second fixing support are located in the mixed fluid pipeline and close to the two ends of the mixed fluid pipeline respectively, and the stirring shaft is movably arranged between the first fixing support and the second fixing support. A spiral blade is arranged on the side wall of the stirring shaft, and the impeller is fixedly connected with the stirring shaft and is close to the treated water inlet pipe. Compared with the prior art, the device has the advantages of good mixing effect, simple structure, low operation cost, high safety and the like.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to a continuous unpowered dosing and mixing device. Background technique [0002] At present, the dosing system of thermal power generation is based on frequency conversion control, adding oxidant, reducing agent, ammonia and other chemical liquids to the treated water, increasing or reducing the dosing amount according to the flow rate, or adding other drugs to synthesize, but the chemical liquid The mixing effect with the treated water is not ideal. One of the reasons is that the output of the pump is not linear, and the dose of the liquid cannot be accurately controlled, so the effect cannot be controlled. Meter) dosing effect, when the dosing effect is not good, the staff often think that the measuring instrument is inaccurate, but in fact, the staff does not really understand the mixing and dissolution of chemicals, and the liquid and the treated water are too late to b...

AI Technical Summary

Problems solved by technology

[0002]The current chemical dosing system for thermal power generation is based on frequency conversion control, adding oxidants, reducing agents, and ammonia and other chemical liquids to the treated water, and increasing or decreasing the dosing according to the flow rate. The dosage, or add other medicines to synthesize, but the mixing effect of the liquid medicine and the treated water is not ideal, one of the reasons is that the output of the pump is not linear, and the dosage of the liquid medicine cannot be accurately controlled, so the effect cannot be controlled. The staff usually measure the dosing effect through measuring instruments (such as conductivity, ORP, PH instrument). When the dosing effect is not good, the staff often think that the measuring instrument is inaccurate, but in fact the staff do not have a real understanding of chemistry The mixing and dissolution of medicines, the medicine liquid and the treated water leave the mixing area before they are fully mixed and reach the measuring point of the measuring instrument

The staff repeatedly calibrated and checked the measuring instrument and found that the instrument was normal, which made the staff helpless. Even if the process was adjusted, the problem could not be solved well, and it was often affected by the water quality.

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