Aeration device for recycled plastic particle wastewater

Abstract

The invention belongs to the technical field of wastewater treatment devices,and in particular relates to an aeration device for recycled plastic particle wastewater. The aeration device comprisesa base, an aeration cylinder is arranged on the base, a motor is arranged at bottom of aeration cylinder, an output shaft of the motor upwards penetrates through the bottom of the aeration cylinder and extends upwards; a clamping block is arranged at the top of the output shaft, a shaft sleeve is arranged on the periphery of the output shaft, a limiting block wrapping the clamping block is arranged atthe top of the shaft sleeve, a conical liquid guide piece is fixedly arranged outside the limiting block, a plurality offixing rings are arranged on the periphery of the shaft sleeve and connected with a stirring rod and a floating ball, a lifting ring is fixed to the bottom of the stirring rod, and the bottom of the lifting ring is connected with a suspender; a limiting piece is arranged at thebottom of the shaft sleeve, and an annular bulge matched with the limiting piece is arranged at the bottom of the aeration cylinder; an annular through groove is formed in the aeration cylinder; the annular through groove is inwards communicated with anair pipeline and aninflation pipe. Compared with the prior art, the aeration device has the advantages that the aeration device is simple and reasonable in structure and easy to maintain, and wastewater in the aeration cylinder is uniformly mixed, so that the dissolved oxygen is in full contact with the wastewater.

Description

technical field [0001] The invention belongs to the technical field of waste water treatment devices, and in particular relates to an aeration device for recycled plastic particle waste water. Background technique [0002] Recycled plastic is a kind of plastic granules produced by recycling used new materials or waste plastics through a screw machine, and then cut into granules by a granulator. The raw materials pass through a crusher, a washing machine, a dehydrator, and a feeding Machine, extruder, granulator and a series of sections, the final product is plastic granules; therefore, a certain amount of cleaning wastewater is generated during the production process, and the quality of the wastewater after sampling is: pH 7-9, COD 500mg / L. BOD 5 200mg / L for SS, 200mg / L for SS, NH 3 -N is 10mg / L, according to the GB18918-2002 primary standard, the urban sewage discharge standard is: pH 6-9, COD 60mg / L, BOD 5 20mg / L, SS 20mg / L, NH 3 -N is 8mg / L; in the sewage purificatio...

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Problems solved by technology

[0003] The purpose of the present invention is to provide an aeration device for recycled plastic particle wastewater in view of the problems of the existing aeration device with complex structure, excessive resistance in the stirring process and easy uneven force.

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