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Monomer recovery device for polyamide slice extraction water

A technology for monomer recovery and water extraction, applied in the field of chemical equipment, can solve the problems of difficult balance of steam evaporation between effects, insufficient three-effect steam evaporation, and inability to increase material concentration, and achieves steam evaporation balance and steam utilization. High, the effect of increasing the material concentration

Active Publication Date: 2015-07-22
FUJIAN JINJIANG TECH
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Problems solved by technology

[0002] At present, the monomer recovery device for extracting water from polyamide slices generally adopts a three-effect concentration device. When the material output is large, the three-effect concentration device alone has insufficient steam evaporation, low steam utilization efficiency, and difficult balance of steam evaporation between effects. , the material concentration cannot be increased

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  • Monomer recovery device for polyamide slice extraction water

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Embodiment Construction

[0016] In order to describe the technical content, structural features, achieved goals and effects of the present invention in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.

[0017] Please also refer to figure 1 , as shown in the figure, a monomer recovery device for extracting water from polyamide slices according to the present invention includes a four-effect concentration device, which is respectively a first-effect concentration device 11, a second-effect concentration device 12, and a three-effect concentration device according to the flow direction of the extraction water. 13 and four-effect concentrating device 14, each concentrating device is made up of material heating evaporator and steam-water separator respectively. Each concentration device can be directly heated by the material heating evaporator, or the heating of the evaporator of the one-effect concentration device is directly heated by raw st...

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Abstract

The invention discloses a monomer recovery device for polyamide slice extraction water. The monomer recovery device is characterized by comprising a four-effect concentration device, wherein the four-effect concentration device is divided into a first-effect concentration device, a second-effect concentration device, a third-effect concentration device and a fourth-effect concentration device along the extraction water flow direction respectively; each concentration device consists of a material heating evaporator and a steam-water separator respectively. The monomer recovery device has the beneficial effects that the steam evaporation is provided by using the four-effect concentration device, the steam utilization rate is higher, the evaporation of steams between the effects is in balance, the material concentration is greatly improved and the purpose of energy conservation is favorably reached.

Description

technical field [0001] The invention belongs to the field of chemical equipment, and in particular relates to a monomer recovery device for extracting water from polyamide slices. Background technique [0002] At present, the monomer recovery device for extracting water from polyamide slices generally adopts a three-effect concentration device. When the material output is large, the three-effect concentration device alone has insufficient steam evaporation, low steam utilization efficiency, and difficult balance of steam evaporation between effects. , the material concentration cannot be increased. Contents of the invention [0003] The object of the present invention is to overcome the problems of the prior art and provide a monomer recovery device for extracting water from polyamide slices with high monomer recovery concentration. [0004] In order to realize the above-mentioned purpose of the invention, the technical scheme adopted in the present invention is: [0005...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D1/26C08J11/02C08G69/00
Inventor 陈万钟郑载禄
Owner FUJIAN JINJIANG TECH
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