Multifunctional spandex spinning solvent device

Abstract

The invention discloses a multifunctional spandex spinning solvent device. The multifunctional spandex spinning solvent device comprises a comprehensive reaction system for intensively treating chemical raw materials such as a spandex spinning additive, a mater control table which is sequentially provided with a display device, a program setting device, a temperature controller and a precaution device from left to right, a liquid return slot, a filter system, five or more liquid distributing slots and an automatic supply pipeline which are sequentially arranged above the comprehensive reactionsystem, a drive motor which is arranged between the master control table and the automatic supply pipeline, wherein the filter system is connected with the comprehensive reaction system through a plurality of input pipelines; a metering trigger which is matched with each liquid distributing slot is arranged on the slot wall which corresponds to the liquid distributing slot; the metering trigger is connected with a master control table through a circuit; a joint of the bottom of each liquid distributing slot and the filter system is provided with an application valve; and the automatic supplypipeline, the application valve and the liquid return slot realize mutually matched opening and closing operations through the signal trigger conduction effect of the metering trigger.

Description

technical field [0001] The invention relates to the technical field of textile machinery, in particular to a multifunctional spandex spinning solvent device. Background technique [0002] Spandex is a block copolymer, and its production methods include dry method, wet method, chemical method and melting method. Taking dry spinning as an example, this method is currently the most widely used method for producing spandex in the world, such as Dupont in the United States and Dorlastan in Germany. Large manufacturers such as ESPA and Toyobo in Japan all use dry spinning for production, and the output of dry spinning accounts for more than 80% of the total output. Dry spinning uses the chain-extended polyurethane as raw material, uses dimethylformamide (DMF) or dimethylcaproamide (DMAC) as solvent, heats and stirs to make a certain concentration, after adding additives, it is filtered, detached Foaming and degassing to obtain spinning dope with uniform viscosity. In traditiona...

AI Technical Summary

Problems solved by technology

In traditional production equipment, the above-mentioned processing machines are large in size, single and independent in function, complex in process, difficult in operation, high in production cost, and low in safety and environmental protection index, so it is not an ideal choice for long-term use by manufacturers

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