Waste plastic cleaning wastewater treatment system

By designing a waste plastic washing wastewater treatment system with a filtration unit and a stirring unit, the system uses scrapers and power components to drive the cylinder to rotate, transferring foreign matter to a storage tank. Combined with an auxiliary blowing mechanism and a stirring unit, it accelerates the separation of flocculants, solving the problem of foreign matter accumulation on the filter screen, achieving automated separation, and improving treatment efficiency.

CN120646994BActive Publication Date: 2026-07-21SHAANXI DONGFANG ENVIRONMENTAL PROTECTION IND GRP XINHENG PLASTICS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHAANXI DONGFANG ENVIRONMENTAL PROTECTION IND GRP XINHENG PLASTICS CO LTD
Filing Date
2025-07-31
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

In existing technologies, when filtering waste plastic washing wastewater, a lot of foreign matter accumulates in the filter screen, which requires regular replacement or cleaning, making the operation cumbersome.

Method used

A wastewater treatment system for washing waste plastics was designed, which includes a filtration unit and a stirring unit. The system uses scrapers and power components to drive the cylinder to rotate, transferring foreign matter to a storage tank. Combined with an auxiliary blowing mechanism and a stirring unit, the system accelerates the separation of flocs. The system also controls the opening and closing of the discharge port through a cleaning plate and a sealing plate, thus achieving automated separation.

Benefits of technology

It achieves automated separation of foreign matter and flocculents, reduces the need for frequent cleaning of the filter unit, and improves processing efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN120646994B_ABST
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Abstract

This invention belongs to the technical field of wastewater treatment systems and discloses a waste plastic washing wastewater treatment system. It includes a shell with an inlet pipe and an outlet pipe. The shell houses a filtration unit, a stirring unit, and a storage tank. The filtration unit includes a frame, two annular plates with side holes, a cylinder, multiple scrapers with filter holes, and a power component. The two annular plates are fixed to the shell via the frame. The cylinder is rotatably positioned between the two annular plates. The multiple scrapers are fixed to the outer wall of the cylinder. The power component is fixed to the corresponding annular plates and drives the cylinder to rotate. Adjacent scrapers and the two annular plates form a filtration trough. In operation, the inlet pipe is located above the cylinder. Wastewater containing foreign matter falls into the filtration trough for filtration. The foreign matter generated during filtration is transferred to the storage tank as the cylinder rotates. This invention can continuously transfer foreign matter from the wastewater to the storage tank and can remove some of the flocculent material generated in the wastewater through the filtration unit.
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