Self-proportioning mixing device and mixing method for foam polyurethane raw material

Abstract

The invention relates to the technical field of polyurethane production, in particular to a self-proportioning mixing device and mixing method for a foam polyurethane raw material. The self-proportioning mixing device comprises a crude polyether feeding device 10, an additive storing and feeding device 20, an additive mixing tank 30, a main mixing tank 40 and a mixture circulating device 50. According to the self-proportioning mixing device and mixing method for the foam polyurethane raw material, a plurality of additives are mixed at first, the molecular structures of the multiple additives produce a cross-linking effect, then the additive mixture and main ingredient crude polyether are mixed, and the mixing effect and the mixture quality are improved; and in addition, the mixing device can conduct metering and mixing according to the preset ratio and can separate storing and feeding from mixing of the additives, and proportioning is more flexible.

Description

technical field [0001] The invention relates to the technical field of polyurethane production, in particular to a foaming polyurethane raw material self-batching and mixing device and a foaming polyurethane raw material mixing method. Background technique [0002] With the development of my country's automobile industry and the increasingly high performance requirements for automotive interior parts, how to achieve flexible process control and reduce raw material production costs in terms of foaming raw materials Topics discussed by interior parts manufacturers. [0003] In the past, the supply mode of foaming raw materials was that manufacturers of automotive interior parts directly purchased mixed polyurethane raw materials from polyurethane raw material suppliers. Adjustment, and raw material manufacturers will charge ingredient fees, resulting in high cost of purchasing raw materials, but with the continuous increase of automobile production and the difference in raw ma...

AI Technical Summary

Problems solved by technology

[0003] In the past, the supply mode of foaming raw materials was that manufacturers of automotive interior parts directly purchased mixed polyurethane raw materials from polyurethane raw material suppliers. Adjustment, and raw material manufacturers will charge ingredient fees, resulting in high cost of purchasing raw materials, but with the continuous increase of automobile production and the difference in raw material formulations for foaming of interior parts of different models, the factory needs to be able to flexibly adjust raw materials during the production process The formula is suitable for the production of different interior parts, so the existing foam raw material supply system can no longer meet the current demand for multiple varieties and mass production of automotive interior parts

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