Classified dosing device for sewage treatment

Abstract

The invention discloses a classified dosing device for sewage treatment, belonging to the technical field of sewage treatment. According to the invention, a stirring mechanism is arranged in a sewagetank; two ends of a stirring shaft in the stirring mechanism are respectively screwed with the left and right side walls of the sewage tank through sealing bearings; a conveying pipe is inserted intoone end of the stirring shaft and is screwed with the stirring shaft through a sealing bearing; the other end of the conveying pipe penetrates through one side wall of the sewage tank and then is inserted and fixed to the outer ring wall of a connecting pipe; a plurality of first hoses are inserted into the other side of the outer ring wall of the connecting pipe at an equal interval; the other ends of the first hoses are connected with a plurality of water suction pumps in a medicine distribution mechanism; and the medicine distribution mechanism is arranged on one side of the sewage tank. Different medicines are respectively separated through separation plates, and a second hose on the upper side of each separation plate is connected with one water suction pump, so the different medicines can be pumped into the sewage tank for mixing through the water suction pumps at different time periods; and thus, the phenomenon of excessive addition of medicines cannot occur. The classified dosing device of the invention has the advantages of reasonable arrangement, low production cost and the like.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a classified dosing device for sewage treatment. Background technique [0002] Sewage treatment is the process of purifying sewage to meet the water quality requirements of a certain water body for drainage or reuse. Sewage treatment is widely used in various fields such as construction, agriculture, transportation, medical care, and catering. In the existing sewage treatment, It is usually necessary to add drugs to the sewage to treat various substances in the water body. At the same time, in order to treat the sewage efficiently, it is necessary to use a stirring device to stir the sewage to speed up the interaction between the drug and the various substances in the sewage. However, when adding the drug, it is usually in the form of A large amount of medicine is added manually or mechanically at one time, and then stirred. During this process, the dissolution rate of t...

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Problems solved by technology

[0002] Sewage treatment is the process of purifying sewage to meet the water quality requirements of a certain water body for drainage or reuse. Sewage treatment is widely used in various fields such as construction, agriculture, transportation, medical care, and catering. In the existing sewage treatment, It is usually necessary to add drugs to the sewage to treat various substances in the water body. At the same time, in order to treat the sewage efficiently, it is necessary to use a stirring device to stir the sew

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