CN207237348U - A kind of crystallization apparatus of caprolactam - Google Patents
A kind of crystallization apparatus of caprolactam Download PDFInfo
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- CN207237348U CN207237348U CN201721259106.9U CN201721259106U CN207237348U CN 207237348 U CN207237348 U CN 207237348U CN 201721259106 U CN201721259106 U CN 201721259106U CN 207237348 U CN207237348 U CN 207237348U
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- caprolactam
- crystallization
- crystallization tank
- crystallization apparatus
- conveyer belt
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Abstract
The utility model discloses a kind of crystallization apparatus of caprolactam.The crystallization apparatus includes crystallization tank, base, materail tube, ventilation duct, gas distributor, conveyer belt, driving chain and motor；The crystallization tank is connected respectively with base and driving chain, and the driving chain is connected with motor；The ventilation duct is connected with gas distributor, and gas distributor is arranged on inside crystallization tank；The materail tube is arranged on crystallization tank top, and material bottom of the tube is less than edge on crystallization tank；The conveyer belt is arranged on crystallization tank lower part, and conveyer belt one end is located under crystallization tank along the inner side of vertical lower.The utility model crystallization apparatus has the advantages that design science, rational in infrastructure, production efficiency is high.Handled by the utility model device, make its gained caprolactam crystal purity height, uniform particle sizes, intensity is big, breakage rate is low.
Description
Technical field
It the utility model is related to a kind of process units of caprolactam, and in particular to a kind of crystallization apparatus of caprolactam.
Background technology
With the enhancing of people's energy conservation and environmental awareness, in Chemical Manufacture the consumption of the energy increasingly obtain the attention of people,
How to lift the production efficiency of reaction unit is people's issues that need special attention.
Caprolactam, molecular formula C6H11NO, molecular weight 113.18, is a kind of white powder or crystalline material；There is oil
Soapy feeling, the smell of industrial goods slightly tertiary amine compounds, has hygroscopic property, be dissolved in ethanol, benzene, ether, dimethylformamide,
A variety of organic solvents such as chlorinated solvent.Caprolactam is a kind of important Organic Chemicals, is that production nylon 6 fiber is (i.e. bright and beautiful
Synthetic fibre) and nylon 6 engineering plastic monomer, the downstream product such as nylon plastic(s), fiber and L-lysine can be produced.
The main production process of caprolactam is cyclohexanone oxime liquid phase Beckmann rearrangement work of the oleum as catalyst
The methods of skill, purification process includes rectifying, extraction, absorption, hydrogenation, oxidation, crystallization, wherein crystallisation are effectively to remove acyl in oneself
One of most effectual way of multiclass impurity in amine.
US2813858 patent applications disclose a kind of method of refined caprolactam, are that one is added in crude caprolactam
Quantitative water or fusing point are less than the organic hydrocarbon solvent of caprolactam, by the way that the processes such as crystallization, centrifugation and washing are repeated several times
Purifying caprolactam.
CN104059018B patent applications disclose the purification process of another caprolactam, and this method is by slightly acyl in oneself
The magma separation of amine, then the process purifying crude caprolactam such as wash through multiple times of filtration, be hydrogenated with.
Using existing solid-liquid separation method such as centrifugal filtration, press filtration, vacuum filtration etc., process is cumbersome, investment is big, washing
Efficiency is low, operating difficulties.Due to the inherent characteristic of caprolactam, common crystal is laminated structure, and intensity difference is broken, solid-liquid
Separation and washing and filtering difficulty are big, limit the extensive use of crystallisation.
In order to solve problem above existing for existing caprolactam purification technique, a kind of more environmentally friendly, efficiency is researched and developed
Higher technical solution is very important.
The content of the invention
The technical problems to be solved in the utility model is：For deficiency existing for existing caprolactam purification technique aspect
Place, the utility model provide a kind of design science, caprolactam crystallization dress rational in infrastructure, easy to operate and high production efficiency
Put.Handled by the utility model crystallization apparatus, gained caprolactam crystal product purity height, uniform particle sizes, intensity are big, damaged
Rate is low.
To solve the above-mentioned problems, the technical solution that the utility model is taken is：
The utility model provides a kind of caprolactam crystallization apparatus, and the crystallization apparatus includes crystallization tank, base, material
Pipe, ventilation duct, gas distributor, conveyer belt, driving chain and motor；The crystallization tank connects respectively with base and driving chain
Connect, the driving chain is connected with motor；The ventilation duct is connected with gas distributor, and gas distributor is arranged on crystallization tank
It is internal；The materail tube is arranged on crystallization tank top, and material bottom of the tube is less than edge on crystallization tank；The conveyer belt is arranged under crystallization tank
Portion, conveyer belt one end are located under crystallization tank along the inner side of vertical lower.
According to above-mentioned caprolactam crystallization apparatus, the crystallization tank is obliquely installed, its gradient is 10~80°。
According to above-mentioned caprolactam crystallization apparatus, the gradient is 30~50°。
According to above-mentioned caprolactam crystallization apparatus, the gas temperature control being passed through in ventilation duct is 50~75 DEG C.
According to above-mentioned caprolactam crystallization apparatus, the gas temperature control being passed through in ventilation duct is 60~65 DEG C.
According to above-mentioned caprolactam crystallization apparatus, the material being passed through in materail tube is 85~100% caprolactam saturation
Aqueous solution.
According to above-mentioned caprolactam crystallization apparatus, the material being passed through in materail tube is 90~95% caprolactam saturation
Aqueous solution.
According to above-mentioned caprolactam crystallization apparatus, the crystal that is obtained in crystallization apparatus be 2~15mm of particle diameter oneself in acyl
Amine crystal.
According to above-mentioned caprolactam crystallization apparatus, the crystal obtained in crystallization apparatus is the caprolactam of 4~8mm of particle diameter
Crystal.
The positive beneficial effect of the utility model：
1st, the utility model caprolactam crystallization apparatus include crystallization tank, base, materail tube, ventilation duct, gas distributor,
Conveyer belt, driving chain and motor etc., each equipment are connected according to certain order；Using a kind of circular groove device, caprolactam is realized
Crystallization, make its products obtained therefrom caprolactam crystal purity high（Purity >=99.80%）, uniform particle sizes（Uniform particle sizes' degree >=
85%）, intensity is big, breakage rate is low.The utility model device has the advantages that design science, rational in infrastructure, production efficiency is high.
2nd, the utility model uses a set of circular groove device, you can to realize the crystallization of caprolactam, equipment is simple, investment
Few, production efficiency is high.
Brief description of the drawings：
The structure diagram of Fig. 1 the utility model caprolactam crystallization apparatus.
In Fig. 1：1 is crystallization tank, and 2 be base, and 3 be materail tube, and 4 be ventilation duct, and 5 be gas distributor, and 6 be conveyer belt, 7
It is motor for driving chain, 8.
Embodiment：
The utility model is expanded on further with reference to embodiments, but is not intended to limit in the technology of the utility model protection
Hold.
Embodiment 1：
Referring to attached drawing 1, the utility model caprolactam crystallization apparatus, including crystallization tank 1, base 2, materail tube 3, ventilation duct
4th, gas distributor 5, conveyer belt 6, driving chain 7 and motor 8；The crystallization tank 1 is obliquely installed, control gradient for 30~
50°；The crystallization tank 1 is connected respectively with base 2 and driving chain 7, and the driving chain 7 is connected with motor 8；The ventilation
Pipe 4 is connected with gas distributor 5, and gas distributor 5 is arranged on inside crystallization tank 1；The materail tube 3 is arranged on 1 top of crystallization tank,
The bottom of materail tube 3 is less than the upper edge of crystallization tank 1；The conveyer belt 6 is arranged on 1 lower part of crystallization tank, and 6 one end of conveyer belt is positioned at crystallization
Along the inner side of vertical lower under groove 1.
Embodiment 2：Substantially the same manner as Example 1, difference is：
Referring to attached drawing 1, the utility model caprolactam crystallization apparatus, including crystallization tank 1, base 2, materail tube 3, ventilation duct
4th, gas distributor 5, conveyer belt 6, driving chain 7 and motor 8；The crystallization tank 1 is obliquely installed, and it is 35 to control gradient°；Institute
State crystallization tank 1 to be connected respectively with base 2 and driving chain 7, the driving chain 7 is connected with motor 8；4 He of ventilation duct
Gas distributor 5 is connected, and gas distributor 5 is arranged on inside crystallization tank 1；The materail tube 3 is arranged on 1 top of crystallization tank, material
The bottom of pipe 3 is less than the upper edge of crystallization tank 1；The conveyer belt 6 is arranged on 1 lower part of crystallization tank, and 6 one end of conveyer belt is located at crystallization tank 1
The lower inner side along vertical lower.
Embodiment 3：Substantially the same manner as Example 1, difference is：
Referring to attached drawing 1, the utility model caprolactam crystallization apparatus, including crystallization tank 1, base 2, materail tube 3, ventilation duct
4th, gas distributor 5, conveyer belt 6, driving chain 7 and motor 8；The crystallization tank 1 is obliquely installed, and it is 45 to control gradient°；Institute
State crystallization tank 1 to be connected respectively with base 2 and driving chain 7, the driving chain 7 is connected with motor 8；4 He of ventilation duct
Gas distributor 5 is connected, and gas distributor 5 is arranged on inside crystallization tank 1；The materail tube 3 is arranged on 1 top of crystallization tank, material
The bottom of pipe 3 is less than the upper edge of crystallization tank 1；The conveyer belt 6 is arranged on 1 lower part of crystallization tank, and 6 one end of conveyer belt is located at crystallization tank 1
The lower inner side along vertical lower.
Embodiment 4：Substantially the same manner as Example 1, difference is：
Referring to attached drawing 1, the utility model caprolactam crystallization apparatus, including crystallization tank 1, base 2, materail tube 3, ventilation duct
4th, gas distributor 5, conveyer belt 6, driving chain 7 and motor 8；The crystallization tank 1 is obliquely installed, and it is 50 to control gradient°；Institute
State crystallization tank 1 to be connected respectively with base 2 and driving chain 7, the driving chain 7 is connected with motor 8；4 He of ventilation duct
Gas distributor 5 is connected, and gas distributor 5 is arranged on inside crystallization tank 1；The materail tube 3 is arranged on 1 top of crystallization tank, material
The bottom of pipe 3 is less than the upper edge of crystallization tank 1；The conveyer belt 6 is arranged on 1 lower part of crystallization tank, and 6 one end of conveyer belt is located at crystallization tank 1
The lower inner side along vertical lower.
Embodiment 5：Substantially the same manner as Example 1, difference is：
Referring to attached drawing 1, the utility model caprolactam crystallization apparatus, including crystallization tank 1, base 2, materail tube 3, ventilation duct
4th, gas distributor 5, conveyer belt 6, driving chain 7 and motor 8；The crystallization tank 1 is obliquely installed, and it is 40 to control gradient°；Institute
State crystallization tank 1 to be connected respectively with base 2 and driving chain 7, the driving chain 7 is connected with motor 8；4 He of ventilation duct
Gas distributor 5 is connected, and gas distributor 5 is arranged on inside crystallization tank 1；The materail tube 3 is arranged on 1 top of crystallization tank, material
The bottom of pipe 3 is less than the upper edge of crystallization tank 1；The conveyer belt 6 is arranged on 1 lower part of crystallization tank, and 6 one end of conveyer belt is located at crystallization tank 1
The lower inner side along vertical lower.
In the utility model caprolactam crystallization apparatus, the gas temperature control being passed through in ventilation duct is 50~75 DEG C, excellent
Elect 60~65 DEG C as；The material being passed through in materail tube is 85~100% caprolactam saturated aqueous solution, is preferably 90~95%
Caprolactam saturated aqueous solution；It is 2~15mm that the caprolactam quartz crystal obtained in crystallization apparatus, which controls particle diameter, preferable particle size
For 4~8mm.
The application method of the utility model caprolactam crystallization apparatus, the detailed step of the application method are as follows：
A, the control of gradient switch of crystallization tank is first turned on, crystallization tank is in heeling condition, it is 30 to control gradient
~50°；Then the control button of motor is opened, drives crystallization tank to be rotated with the speed of 15~30r/min by driving chain；And
Conveyer belt control button is opened, conveyer belt is moved with the speed of 3~8m/min；
B, the controlling switch of ventilation duct is opened, 60~65 DEG C of gas is sent into by ventilation duct, the gas being sent into by ventilation duct
Crystallization tank is uniformly passed through through gas distributor；Then the controlling switch of materail tube is opened, by 90~95% caprolactam saturated water
Solution is sent into crystallization tank with the flow of 30~300kg/min, in crystallization tank by the equally distributed gas of gas distributor into
Row crystallizing and drying, throws away after crystallizing and drying from crystallization tank lowest edge, obtains caprolactam crystal, gained caprolactam crystal
Particle diameter is 4~8mm, and subsequent processing is transferred into through conveyer belt.
Finally it should be noted that：Above example is only illustrating the technical solution of the utility model rather than it is limited
System；Although the utility model is described in detail with reference to preferred embodiment, those skilled in the art should be understood：According to
It can so modify to specific embodiment of the present utility model or equivalent substitution is carried out to some technical characteristics；Without de-
From the spirit of technical solutions of the utility model, it should all cover among the claimed technical solution scope of the utility model.
Claims (9)
- A kind of 1. caprolactam crystallization apparatus, it is characterised in that：The crystallization apparatus includes crystallization tank, base, materail tube, ventilation Pipe, gas distributor, conveyer belt, driving chain and motor；The crystallization tank is connected respectively with base and driving chain, the biography Dynamic chain is connected with motor；The ventilation duct is connected with gas distributor, and gas distributor is arranged on inside crystallization tank；It is described Materail tube is arranged on crystallization tank top, and material bottom of the tube is less than edge on crystallization tank；The conveyer belt is arranged on crystallization tank lower part, conveyer belt One end is located under crystallization tank along the inner side of vertical lower.
- 2. caprolactam crystallization apparatus according to claim 1, it is characterised in that：The crystallization tank is obliquely installed, it inclines Gradient is 10~80°。
- 3. caprolactam crystallization apparatus according to claim 2, it is characterised in that：The gradient is 30~50°。
- 4. caprolactam crystallization apparatus according to claim 1, it is characterised in that：The gas temperature control being passed through in ventilation duct It is made as 50~75 DEG C.
- 5. caprolactam crystallization apparatus according to claim 4, it is characterised in that：The gas temperature control being passed through in ventilation duct It is made as 60~65 DEG C.
- 6. caprolactam crystallization apparatus according to claim 1, it is characterised in that：The material being passed through in materail tube for 85~ 100% caprolactam saturated aqueous solution.
- 7. caprolactam crystallization apparatus according to claim 6, it is characterised in that：The material being passed through in materail tube for 90~ 95% caprolactam saturated aqueous solution.
- 8. caprolactam crystallization apparatus according to claim 1, it is characterised in that：The crystal obtained in crystallization apparatus is grain The caprolactam crystal of 2~15mm of footpath.
- 9. caprolactam crystallization apparatus according to claim 8, it is characterised in that：The crystal obtained in crystallization apparatus is grain The caprolactam crystal of 4~8mm of footpath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721259106.9U CN207237348U (en) | 2017-09-28 | 2017-09-28 | A kind of crystallization apparatus of caprolactam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721259106.9U CN207237348U (en) | 2017-09-28 | 2017-09-28 | A kind of crystallization apparatus of caprolactam |
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| Publication Number | Publication Date |
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| CN207237348U true CN207237348U (en) | 2018-04-17 |
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ID=61889428
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| CN201721259106.9U Active CN207237348U (en) | 2017-09-28 | 2017-09-28 | A kind of crystallization apparatus of caprolactam |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107551598A (en) * | 2017-09-28 | 2018-01-09 | 神马实业股份有限公司 | The crystallization apparatus and application method of a kind of caprolactam |
| CN112556358A (en) * | 2020-12-25 | 2021-03-26 | 中国平煤神马集团尼龙科技有限公司 | Drying device for caprolactam test |
-
2017
- 2017-09-28 CN CN201721259106.9U patent/CN207237348U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107551598A (en) * | 2017-09-28 | 2018-01-09 | 神马实业股份有限公司 | The crystallization apparatus and application method of a kind of caprolactam |
| CN107551598B (en) * | 2017-09-28 | 2023-12-01 | 神马实业股份有限公司 | Caprolactam crystallization device and use method |
| CN112556358A (en) * | 2020-12-25 | 2021-03-26 | 中国平煤神马集团尼龙科技有限公司 | Drying device for caprolactam test |
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