Double screw extruder suitable to hierarchy of middle-high viscosity

A twin-screw extruder and high-viscosity technology, applied in the field of twin-screw extruders, can solve the problems of long residence time of materials, poor conveying effect, large shearing effect of materials, etc., and achieve the effect of quality optimization
CN1462682AActive Publication Date: 2003-12-24江苏圣杰实业有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
江苏圣杰实业有限公司
Publication Date
2003-12-24

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Abstract

A dual-screw extruder for middle-or high-viscosity system is composed of drive motor, shaft coupling, gear box, primary and secondary materials feeding system, mixing-conveying system, air exhaustingsystem, extruding-out and particle-cutting system, and cylinder. It features that on two parallel screw bolts in the cylinder, the engaged and non-engaged spiral elements are simultaneously and serially connected in combination mode. Its advantage is optimal effect to remove volatile compnents, mix materials, convey mixture and transfer heat.
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Description

technical field

[0001] The present invention relates to a twin-screw extruder, in particular to a twin-screw extruder for chemical reaction, washing, agglomeration, blending and removal of residual low-molecular substances in a heterogeneous system characterized by medium and high viscosity machine. Background technique

[0002] At present, synthetic high polymers usually undergo various polymerization reactions such as bulk polymerization, solution polymerization, emulsion polymerization or suspension polymerization to prepare various high polymers. However, the polymer products obtained through various polymerization reactions have a viscosity Generally very high, but all contain various solvents, water, various additives used in the polymerization process, as well as unreacted monomers and reaction by-products, so the so-called post-treatment must be carried out, and the above solvents, water, unreacted monomers Substances such as solids and additives are removed from th...

Claims

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