Novel vinyl chloride dehydration and purification device

Abstract

The invention discloses a novel vinyl chloride dehydration and purification device. The vinyl chloride dehydration and purification device comprises a box body. During dehydrating of vinyl chloride subjected to water washing and alkali washing, a vinyl chloride gas is dehydrated by a first dehydration assembly and a second dehydration assembly in sequence; after dehydration, the gas is dedusted bya dedusting cloth bag; the dehydrated and dedusted gas is discharged out of an exhaust pipe for later use; after power-on of an electromagnet, an iron block approaches the electromagnet; after power-off of the electromagnet, the iron block gets away from the electromagnet; in the power-on and power-off processes, a dust removal box moves up and down, dust on the dedusting cloth bag falls to the bottom of the box body; after the dust is discharged out of a dedusting pipeline, the dedusting pipeline is closed; when the adsorption effect of an adsorbent is reduced, heated air passes through theexhaust pipe, flows into an air outlet pipe of the first dehydration assembly after passing through an air outlet pipe of the second dehydration assembly and then is discharged out of an air inlet pipe of the first dehydration assembly; and in the flowing process of the heated air, the motor works to drive a rotating rod to rotate, so that the regeneration speed of the adsorbent is increased.

Description

technical field [0001] The invention belongs to the technical field of dust removal and purification, in particular to a novel vinyl chloride dehydration and purification device. Background technique [0002] In the prior art, in the production process of vinyl chloride by calcium carbide method, in the process of water washing and alkali washing, the vinyl chloride contains moisture. If the moisture in the gas is not completely dehydrated, the moisture in the gas and the peroxide in the reaction product will produce Hydrolysis produces acidic substances, which will not only corrode equipment but also affect the whiteness and thermal stability of polyvinyl chloride. Therefore, after the calcium carbide method produces polyethylene monomer, it is necessary to completely dehydrate the polyethylene monomer, but the dehydration is completed. The gas will carry the dust in the adsorbent and enter the follow-up system. These dusts will enter the screw compressor system, block the ...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a new type of vinyl chloride dehydration and purification device to solve the problem of incomplete dehydration of water in the gas proposed in the above background technology, corrosion of equipment and affecting the quality of polyvinyl chloride produced, and dust in the adsorbent entering the compressor , a problem that causes the compressor to fail

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