Polymer settling separation system

By separating light and heavy phases and small molecule polymers using a settling tank system, the problem of low centrifuge efficiency in polymerization reactions is solved, achieving efficient separation and improved product quality.

CN224270269UActive Publication Date: 2026-05-26LIAOCHENG LUXI POLYCARBONATE CO LTD
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Patent Information

Application Number
CN202521025487.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-23
Publication Date
2026-05-26
Estimated Expiration
2035-05-23

AI Technical Summary

Technical Problem

In the polymer solution generated by the polymerization reaction, the proportion of water in the light phase is high, resulting in low centrifuge separation efficiency, which cannot effectively separate small molecule polymers and affects the product strength and appearance quality.

Method used

A settling tank system is used for light and heavy phase separation. The boundary line is observed using structured corrugated packing and a sight glass. Small molecule polymers are separated, and the feed rate to the centrifuge is reduced, thereby improving the centrifuge efficiency.

Benefits of technology

It effectively separates small molecule polymers, reduces centrifuge load, improves separation efficiency, avoids degradation of small molecules at high temperatures, and improves product quality.

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Abstract

The utility model relates to the technical field of polymer solution separation, in particular to a polymer settling separation system, which overcomes the technical problems that a centrifugal machine is low in treatment efficiency and cannot effectively separate micromolecular polymers, and comprises a settling tank which is a closed tank body, light-phase structured packing is arranged at the upper part in the settling tank, and heavy-phase structured packing is arranged at the lower part in the settling tank; the top of the settling tank is communicated with a light phase outlet pipeline, and the bottom of the settling tank is communicated with a heavy phase outlet pipeline; the side wall of the settling tank is communicated with a polymer solution feeding pipeline and a small-molecule polymer outlet pipe between the light-phase structured packing and the heavy-phase structured packing; a sight glass through which the interior of the settling tank can be observed is mounted at the tail end of the small-molecule polymer outlet pipe, and the side wall of the small-molecule polymer outlet pipe is sequentially communicated with a switch valve, a small-molecule polymer discharge pipeline and a defective product collecting tank.
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