DMAC multi-stage spraying recycling system and method
A recovery box and outer surface technology, applied in separation methods, chemical instruments and methods, filtration separation, etc., can solve problems such as incomplete recovery of DMAC and incomplete spraying
Active Publication Date: 2022-08-02
杭州青云新材料股份有限公司
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Problems solved by technology
[0004] Aiming at the deficiencies of the prior art, the present invention provides a DMAC multi-stage spray recovery and reuse system and method, which solves the problem of incomplete recovery of DMAC caused by incomplete spraying of the existing recovery device
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[0036] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0037] see Figure 1-10 , the present invention provides a technical solution: a DMAC multi-stage spray recycling system, including a recovery box 1, the internal structure of the recovery box 1 is treated with corrosion resistance, the bottom of the recovery box 1 is provided with legs 2, and the side of the recovery box 1 is provided with A box door 3 is provided. The box door 3 is made of a material with good airtightness and press...
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A recycling mechanism comprises a connecting pipe and a fixing seat, the interior of the connecting pipe is communicated with the interior of a recycling box in a penetrating mode, the fixing seat is arranged in the recycling box, a filtering assembly and an exhaust assembly are arranged outside the fixing seat, a transverse strip is fixedly connected to the top of the fixing seat, and the transverse strip is fixedly connected to the top of the fixing seat. And the outer surface of the transverse strip is fixedly connected with the inner wall of the recycling box. According to the DMAC multi-stage spraying recycling system and method, by arranging the recycling mechanism, firstly, a motor is driven to drive a rotating shaft to rotate, so that an impeller rotates along with the rotating shaft, DMAC liquid and sprayed mist after spraying are absorbed through the action of suction force and a connecting pipe, the DMAC liquid and the sprayed mist enter a recycling box, and therefore DMAC can be comprehensively recycled into the recycling box; through the combination of the structure, the problem that DMAC is not recycled thoroughly due to the fact that spraying of a spraying system of an existing recycling device is not comprehensive is solved.
Description
technical field [0001] The invention relates to the technical field of DMAC recycling, in particular to a DMAC multi-stage spray recycling system and method. Background technique [0002] Dimethylacetamide, the full name is N,N-dimethylacetamide, abbreviated as DMAC or DMA; a commonly used aprotic polar solvent; colorless transparent liquid, flammable. Can be arbitrarily mixed with organic solvents such as water, alcohol, ether, ester, benzene, chloroform and aromatic compounds; used in the preparation of medicines, synthetic resins, and also used as a solvent for polyacrylonitrile spinning and separation of styrene from C8 fractions Extractive distillation solvent, etc.; prepared by the action of dimethylamine and acetyl chloride. [0003] In the traditional DMAC recovery and spray device, DMAC is generally recovered by using the water-soluble characteristics of DMAC. However, during the recovery process, the air containing DMAC is often mixed with more impurities, and due...
Claims
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IPC IPC(8): B01D46/12B01D29/03B01D46/88
CPCB01D46/12B01D46/88B01D29/03Y02P70/10
Inventor 秦春
Owner 杭州青云新材料股份有限公司