Pearl wool coiled material continuous foaming composite technology and waste gas recovery system thereof

By using continuous production lines and waste gas recycling systems, the problems of frequent equipment start-ups and shutdowns and VOC emissions in the production of pearl cotton rolls have been solved, achieving an efficient and environmentally friendly production mode and improving production efficiency and economic benefits.

CN121105443APending Publication Date: 2025-12-12江苏远真包装制品有限公司
0 Cites 1 Cited by

Patent Information

Application Number
CN202511091149.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-05
Publication Date
2025-12-12

AI Technical Summary

Technical Problem

Traditional EPE foam roll foaming and composite processes suffer from energy waste due to frequent equipment start-ups and shutdowns, low production efficiency, and direct emissions of VOCs, making it difficult to meet the needs of large-scale production and posing a threat to the environment and health.

Method used

The continuous production line combines automated unwinding, online lamination, and multi-stage temperature-controlled foaming technology with a combined treatment system of condensation recovery, activated carbon adsorption, and catalytic combustion to achieve resource recovery of waste gas. By precisely controlling the raw material ratio and process parameters, production efficiency and environmental protection are ensured.

Benefits of technology

It has achieved continuous production, reduced energy consumption per unit product by 15%-20%, achieved a waste gas purification efficiency of ≥98%, met environmental protection standards, and improved production efficiency and economic benefits.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The invention discloses a continuous foaming composite process for a pearl wool coiled material and a waste gas recovery system thereof, and belongs to the technical field of pearl wool processing. Aiming at the problems of low efficiency and waste gas pollution of a traditional intermittent process, the process realizes continuous production through raw material selection (the melt index of LDPE is 1.0-2.5 g / 10min), drying and mixing pretreatment, melting and plasticizing through a twin-screw extruder, injection of foaming agents such as butane under the pressure of 8-12MPa, extrusion foaming at a die head of 140-160 DEG C and combination of air-cooling and water-cooling shaping. The compounding link comprises multiple processes such as hot pressing and co-extrusion to adapt to different base materials, after-treatment is conducted through trimming, taper tension coiling and standing stress release, the product density fluctuation is + / -3%, and the peel strength is larger than or equal to 3 N / cm. According to the waste gas recovery system, negative pressure collection is conducted through a closed gas collecting hood, indirect cooling and alkali liquor spraying pretreatment are conducted, activated carbon adsorption concentration and catalytic combustion purification are conducted, the VOCs removal rate is larger than or equal to 98%, the emission concentration is smaller than or equal to 50 mg / m < 3 >, and efficient production and environmental protection benefits are achieved.
Need to check novelty before this filing date? Find Prior Art