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Caprolactam crystallizing device and using method

A caprolactam and crystallization device technology, applied in solution crystallization, organic chemistry and other directions, can solve the problems of difficult solid-liquid separation and washing and filtration, limiting the wide application of crystallization methods, low washing efficiency and other problems, achieving low breakage rate and high production efficiency. , the effect of simple equipment

Pending Publication Date: 2018-01-09
SHEN MA INDUSTRY CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Using the existing solid-liquid separation methods such as centrifugal filtration, press filtration, vacuum suction filtration, etc., the process is cumbersome, the investment is large, the washing efficiency is low, and the operation is difficult
Due to the inherent characteristics of caprolactam, common crystals are sheet-like structures, poor in strength, easily broken, and difficult to separate solid-liquid and wash and filter, which limits the wide application of crystallization.

Method used

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  • Caprolactam crystallizing device and using method

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Effect test

Embodiment 1

[0030] See attached figure 1 , caprolactam crystallization device of the present invention, comprises crystallization tank 1, base 2, material pipe 3, ventilation pipe 4, gas distributor 5, conveyer belt 6, transmission chain 7 and motor 8; Described crystallization tank 1 is inclined to be set, and the inclination is controlled 30-50 ° The crystallization tank 1 is connected with the base 2 and the transmission chain 7 respectively, and the transmission chain 7 is connected with the motor 8; the ventilation pipe 4 is connected with the gas distributor 5, and the gas distributor 5 is located inside the crystallization tank 1 The material pipe 3 is located at the top of the crystallization tank 1, and the bottom of the material tube 3 is lower than the upper edge of the crystallization tank 1; the conveyor belt 6 is located at the bottom of the crystallization tank 1, and one end of the conveyor belt 6 is positioned at the lower edge of the crystallization tank 1 and is vertica...

Embodiment 2

[0032] See attached figure 1 , caprolactam crystallization device of the present invention, comprises crystallization tank 1, base 2, material pipe 3, ventilation pipe 4, gas distributor 5, conveyer belt 6, transmission chain 7 and motor 8; Described crystallization tank 1 is inclined to be set, and the inclination is controlled for 35 ° The crystallization tank 1 is connected with the base 2 and the transmission chain 7 respectively, and the transmission chain 7 is connected with the motor 8; the ventilation pipe 4 is connected with the gas distributor 5, and the gas distributor 5 is located inside the crystallization tank 1 The material pipe 3 is located at the top of the crystallization tank 1, and the bottom of the material tube 3 is lower than the upper edge of the crystallization tank 1; the conveyor belt 6 is located at the bottom of the crystallization tank 1, and one end of the conveyor belt 6 is positioned at the lower edge of the crystallization tank 1 and is vertic...

Embodiment 3

[0034] See attached figure 1 , caprolactam crystallization device of the present invention, comprises crystallization tank 1, base 2, material pipe 3, ventilation pipe 4, gas distributor 5, conveyer belt 6, transmission chain 7 and motor 8; Described crystallization tank 1 is inclined to be set, and the inclination is controlled for 45 ° The crystallization tank 1 is connected with the base 2 and the transmission chain 7 respectively, and the transmission chain 7 is connected with the motor 8; the ventilation pipe 4 is connected with the gas distributor 5, and the gas distributor 5 is located inside the crystallization tank 1 The material pipe 3 is located at the top of the crystallization tank 1, and the bottom of the material tube 3 is lower than the upper edge of the crystallization tank 1; the conveyor belt 6 is located at the bottom of the crystallization tank 1, and one end of the conveyor belt 6 is positioned at the lower edge of the crystallization tank 1 and is vertic...

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Abstract

The invention discloses a caprolactam crystallizing device and a using method. According to the crystallizing device, a crystallizing tank is respectively connected with a base and a transmission chain, and the transmission chain is connected with a motor; a vent pipe is connected with a gas distributor, and the gas distributor is arranged inside the crystallizing tank; a material pipe is arrangedon the upper part of the crystallizing tank, and the bottom of the material pipe is lower than the upper edge of the crystallizing tank; a conveyer belt is arranged on the lower part of the crystallizing tank; and one end of the conveyer belt is positioned on the inner side of the vertical lower part of the lower edge of the crystallizing tank. The using method comprises the following steps: controlling the crystallizing tank to be positioned in an inclined state; starting a motor, and enabling the crystallizing tank to rotate by virtue of the transmission chain; starting a conveyor belt button to move the conveyor belt; feeding gases into the crystallizing tank through the vent pipe; and feeding materials into the crystallizing tank by the material pipe, crystallizing and drying in the crystallizing tank so as to obtain the caprolactam crystal, and conveying the crystal to the next process by the conveyor belt. The device disclosed by the invention has the advantages of being scientific in design, reasonable in structure, high in production efficiency and the like. According to the caprolactam crystallizing device provided by the invention, the prepared product is high in purity,uniform in particle size, high in strength and low in damage rate.

Description

technical field [0001] The invention relates to a caprolactam production device and method, in particular to a caprolactam crystallization device and a use method thereof. Background technique [0002] With the enhancement of people's awareness of energy saving and environmental protection, people pay more and more attention to energy consumption in chemical production. How to improve the production efficiency of reaction devices is a problem that people focus on. [0003] Caprolactam, formula C 6 h 11 NO, with a molecular weight of 113.18, is a white powder or crystalline substance; it has a greasy feeling, and the industrial product has a slight odor of tertiary amine compounds. It is easy to absorb water and is soluble in ethanol, benzene, ether, dimethylformamide, Various organic solvents such as chlorinated solvents. Caprolactam is an important organic chemical raw material. It is a monomer for the production of nylon 6 fiber (namely nylon) and nylon 6 engineering pl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D9/02C07D223/10
Inventor 郑晓广董建勋齐建华李晓辉李识寒何泽涵吴华文胡红勤徐蓓蕾胡莹莹王龙鑫
Owner SHEN MA INDUSTRY CO LTD
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