A waste heat recovery device for nylon 6 polymerization production

By using an inclined filter cylinder and filter screen structure in the waste heat recovery device produced by nylon 6 polymerization, the problems of heat exchanger blockage and wear caused by steam entrainment impurities were solved, achieving efficient heat energy recovery and stable equipment operation, and extending equipment life.

CN224534856UActive Publication Date: 2026-07-21HENAN SHENMAPULI MATERIAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HENAN SHENMAPULI MATERIAL CO LTD
Filing Date
2025-05-23
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

During the polymerization process of nylon 6, unreacted particles and impurities entrained by steam cause heat exchanger blockage and wear, affecting production stability and equipment safety.

Method used

Design a waste heat recovery device with an inclined filter cylinder and filter screen. The steam input pipe is divided into two parts by the filter cylinder, and a filter screen is installed at the filter port to intercept solid particles and polymer residues in the steam. Combined with a detachable dirt collection hood and cleaning device, effective impurity filtration and cleaning can be achieved.

Benefits of technology

It effectively reduces heat exchanger blockage and wear, improves heat recovery efficiency, extends equipment life, and reduces maintenance costs and safety risks.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to nylon 6 processing equipment technical field discloses a kind of waste heat recovery devices for nylon 6 polymerization production, including heat exchanger, steam input pipe is provided on the heat exchanger, the bottom of steam input pipe is provided with filter cartridge, wherein the filter cartridge is inclinedly arranged and the inside delivery channel of steam input pipe is divided into two parts, the side, away from the steam input pipe entrance of filter cartridge, is provided with filter mouth, filter screen is provided at the filter mouth, the two parts separated of steam input pipe are conducted through the filter mouth;The utility model can effectively filter steam impurities, reduce the blockage and abrasion of heat exchanger, improve the heat recovery efficiency and equipment service life in the production process of nylon 6.
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