Multistage precipitating device for industrial sewage treatment

Abstract

The invention discloses a multistage precipitating device for industrial sewage treatment. The device comprises an outer barrel, an inner barrel, a water inlet pipe, a sand collecting hopper, a plurality of supporting legs, a discharge valve I, a plurality of short joints, an annular pipe and a water outlet pipe, wherein the water inlet pipe is arranged on one side of the upper portion of the inner barrel and the water inlet pipe is tangentially connected to the inner barrel; the outer barrel is arranged on one side out of the inner barrel; the short joints which are uniformly distributed arearranged on one side of the upper portion of the outer barrel and are connected to the outer barrel in a through manner; and the short joints are connected to the annular pipe, the water outlet pipe is arranged on one side of the short joints, the sand collecting hopper which is funnel-shaped is arranged on one side of the lower portion of the outer barrel, the supporting legs are arranged on oneside of the outer side of the sand collecting hopper, and the discharge valve I is arranged on one side of the lower portion of the sand collecting hopper. The water inlet pipe is tangentially connected to the inner barrel, sand is removed by rotational flow in the inner barrel to remove most precipitates, and precipitation is performed in the outer barrel, so that the sewage precipitating effectis enhanced, and the sewage precipitating efficiency is improved.

Description

Technical field [0001] The invention belongs to the technical field of environmental protection equipment, and particularly relates to a multi-stage precipitation device for industrial sewage treatment. Background technique [0002] For a long time, industrial wastewater has been one of the problems that restrict the rapid development of industry, and how to treat industrial wastewater is also a problem that everyone is concerned about; therefore, how to scientifically and rationally treat industrial wastewater has always been the subject of efforts by domestic and foreign experts; precipitation It is one of the commonly used processes in sewage treatment. It uses the natural precipitation or coagulation precipitation of water to remove suspended solids in the water. The traditional precipitation device covers a large area and can only use the passage of time when performing the precipitation operation. It slowly settles naturally, it takes a long time to complete the precipitati...

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Problems solved by technology

[0002] For a long time, industrial sewage has been one of the problems restricting the rapid development of industry, and how to deal with industrial sewage is also an issue of concern to everyone; therefore, how to treat industrial sewage scientifically and rationally has always been a subject of hard work by experts at home and abroad; precipitation It is one of the commonly used processes for sewage treatment. It uses the natural sedimentation or coagulation of water to remove suspended solids in water. Traditional sedimentation devices occupy a large area and can only use the passage of time when performing sedimentation operations. Slowly and naturally precipitate, it takes a long time to complete the precipitation, and the efficiency is low

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