CN209941157U - Dichloromethane extraction device for producing ultra-high molecular weight polyethylene fiber - Google Patents
Dichloromethane extraction device for producing ultra-high molecular weight polyethylene fiber Download PDFInfo
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- CN209941157U CN209941157U CN201920645783.7U CN201920645783U CN209941157U CN 209941157 U CN209941157 U CN 209941157U CN 201920645783 U CN201920645783 U CN 201920645783U CN 209941157 U CN209941157 U CN 209941157U
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Abstract
The utility model discloses a dichloromethane extraction device of ultra high molecular weight polyethylene production, including the extraction tank that is used for holding water, the extraction tank include extraction capping and extraction tank body, extraction capping and extraction tank body can dismantle the connection, the bottom of extraction tank body be provided with heating device, be provided with bubble generator and the temperature sensor of measuring the temperature of water on the lateral wall of extraction tank body, this internal godet that pulls ultra high molecular weight polyethylene that is provided with a plurality of crisscross settings of extraction tank get into the water bath. The utility model discloses an extraction device utilizes water to extract dichloromethane, has reduced manufacturing cost, and heats water through temperature sensor control heating device, utilizes the boiling point of dichloromethane to be less than hydrothermal temperature far away, and dichloromethane is separable in hot water promptly, can real-time monitoring water's temperature, has still saved the time when having improved the extraction effect.
Description
Technical Field
The utility model belongs to the technical field of the spinning, concretely relates to dichloromethane extraction device of ultra high molecular weight polyethylene fiber production.
Background
The ultra-high molecular weight polyethylene fiber is also called high-strength high-modulus polyethylene fiber, is the fiber with the highest specific strength and specific modulus in the world at present, and is the fiber spun by polyethylene with the molecular weight of 100-500 ten thousand. With the rapid development of science and technology, the demand of characteristic fibers is increasing day by day, and after carbon fibers and aramid fibers, ultrahigh molecular weight polyethylene fibers are popular in various industries due to excellent performance and wide application prospect.
The preparation process of the ultra-high molecular weight polyethylene fiber is extremely complex, and the preparation of raw materials, namely a double-screw extruder, a spinning box, extraction, drying, heating and drafting, winding and forming are sequentially required, the gel spinning technology is usually adopted, polyethylene and a solvent are prepared into a spinning melt, the spinning melt is spun and cooled to prepare gel filaments, a hydrocarbon solution is used as an extracting agent to extract the solvent in the gel filaments, and then the high-strength and high-modulus polyethylene fiber is prepared after heating and drafting. Because the macromolecules are in a highly entangled state, the processing difficulty is very high, a large amount of solvent is added in the spinning process, the network structure and the carding are enabled to be realized, the acting force among the polyethylene macromolecules in the network is broken up by the solvent molecules and becomes very small, the acting force among the macromolecules is very easy to generate in the later-stage stretching process and becomes very small after being broken up by the solvent molecules, the macromolecules slide very easily in the later-stage stretching process and are difficult to stably stretch, and the high-strength and high-modulus performance cannot be achieved.
In view of the above, the present invention is particularly proposed.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problem that prior art exists, the utility model provides a dichloromethane extraction device of ultra high molecular weight polyethylene fiber production, the utility model discloses a sealed structure setting of extraction device utilizes water to extract dichloromethane, has reduced manufacturing cost, and heats water through temperature sensor control heating device, utilizes the boiling point of dichloromethane to be less than hydrothermal temperature far away, and dichloromethane is separable in hot water promptly.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a dichloromethane extraction device of ultra high molecular weight polyethylene production, is including the extraction tank that is used for holding water, the extraction tank include extraction capping and extraction tank body, extraction capping and extraction tank body can dismantle the connection, the bottom of extraction tank body be provided with heating device and bubble generator, be provided with the temperature sensor of the temperature of measuring water on the lateral wall of extraction tank body, this internal godet that is provided with a plurality of crisscross settings of extraction tank pull ultra high molecular weight polyethylene and get into the water bath.
Furthermore, the heating device is electrically connected with the temperature sensor, and the heating device is automatically turned on or turned off according to the temperature measured by the temperature sensor.
Furthermore, the side wall of the extraction tank body is also provided with an inlet and an outlet of the ultra-high molecular weight polyethylene fiber.
Furthermore, the ultra-high molecular weight polyethylene fiber enters the inlet through a silk feeding roller, the ultra-high molecular weight polyethylene fiber is led out of the outlet through a silk discharging roller after being extracted, and the inlet and the outlet are hermetically connected with a pipeline.
Furthermore, the extraction tank cover is also provided with a water injection port, and water is injected through the water injection port to maintain the stability of the water level in the extraction tank.
Furthermore, the bottom of the extraction tank body is also provided with a sewage draining outlet.
Furthermore, the godet roller is connected with a motor through a gear transmission structure.
Furthermore, an air outlet for discharging steam is arranged on the extraction tank cover.
Further, the air outlet is sequentially connected with a condenser and a dichloromethane separation device through pipelines.
Further, the extraction tank is made of stainless steel, ceramic or polytetrafluoroethylene corrosion-resistant materials.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the utility model discloses an extraction device utilizes water to extract dichloromethane, has reduced manufacturing cost, and heats water through temperature sensor control heating device, utilizes the boiling point of dichloromethane to be far less than hydrothermal temperature, and dichloromethane is separable in hot water promptly, can real-time monitoring water temperature, extracts dichloromethane out completely, has still saved the time when having improved the extraction effect; meanwhile, the bubble generator is adopted to replace the traditional ultrasonic generator, so that the volatilization of dichloromethane caused by the cavitation of ultrasonic waves is reduced, and the potential safety hazard in the production process is reduced;
(2) the utility model discloses a dichloromethane extraction device of ultra high molecular weight polyethylene fiber production is rational in infrastructure, easily processing, low in production cost, and work efficiency is high, and it is effectual to extract, and the dichloromethane extraction rate can reach more than 99%, separates recovery processing to the dichloromethane of extraction, can carry out the reutilization, has practiced thrift the resource simultaneously.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of a methylene dichloride extraction device for producing ultra-high molecular weight polyethylene fibers according to the present invention;
the device comprises an extraction tank cover 1, an extraction tank body 2, an ultrahigh molecular weight polyethylene fiber inlet 21, an ultrahigh molecular weight polyethylene fiber outlet 22, a heating device 3, a bubble generator 4, a godet roller 5, a water injection port 6, an air outlet 7, a sewage draining outlet 8, a condenser 9, a dichloromethane separating device 10 and a temperature sensor 11.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1, the utility model discloses a dichloromethane extraction device of ultra high molecular weight polyethylene production, including the extraction tank that is used for holding water, the extraction tank include extraction capping 1 and extraction tank body 2, extraction capping 1 and extraction tank body 2 can dismantle the connection, the bottom of extraction tank body 2 be provided with heating device 3 and bubble generator 4, be provided with the temperature sensor 11 of measuring the temperature of water on the lateral wall of extraction tank body 2, this internal godet roller 5 that pulls ultra high molecular weight polyethylene entering water bath that is provided with a plurality of crisscross settings of extraction tank.
Wherein, extraction tank cap 1 and 2 threaded connection of extraction tank body, extraction tank cap 1 in be provided with the sealing washer so that extraction tank cap 1 and 2 sealing connection of extraction tank, the utility model discloses a whole extraction device adopts sealing connection, prevents that the dichloromethane from volatilizing, causes the pollution problem.
The utility model discloses a bubble generator 4 can produce the bubble, play the stirring effect can, the utility model discloses preferred bubble generator's structure does, bubble generator for the pipe that pierces through extraction unit bottom, pipe one end be located the inside of extraction unit, the other end is connected with air compressor, air compressor produces compressed air and enters into the inside gassing of extraction unit through the pipe for the flow of extractant, and then improve the extraction effect.
The heating device 3 is electrically connected with the temperature sensor 11, and the heating device 3 is automatically turned on or off according to the temperature measured by the temperature sensor 11.
The utility model discloses an extraction device passes through heating device 3 and heats the water in the extraction tank to the uniform temperature, utilize the boiling point (39.8 ℃) of dichloromethane to be less than the boiling point of water far away, dichloromethane separates with the water separation very easily under the high temperature, the invention selects heating device 3 to heat water to 60-70 ℃ and separates, can furthest separate out dichloromethane in this temperature range, and the evaporation of water is less, utilize temperature sensor 11 can real-time monitoring water's temperature, when the temperature is higher than this within range, heating device is not heating, when the temperature is lower than this within range, heating device heats, like this can real-time assurance extraction tank water's temperature is in above-mentioned within range, play the highest extraction efficiency.
The side wall of the extraction tank body 2 is also provided with an inlet 21 of ultra-high molecular weight polyethylene fiber and an outlet 22 of ultra-high molecular weight polyethylene fiber. The ultra-high molecular weight polyethylene fiber enters the inlet 21 of the ultra-high molecular weight polyethylene fiber through the wire inlet roller, the ultra-high molecular weight polyethylene fiber is led out of the outlet 22 of the ultra-high molecular weight polyethylene fiber through the wire outlet roller after being extracted, and the inlet 21 of the ultra-high molecular weight polyethylene fiber and the outlet 22 of the ultra-high molecular weight polyethylene fiber are both connected with a pipeline in a sealing way.
The extraction tank cover 1 on still be provided with water filling port 6, through 6 stability of injected water in order to maintain the extraction tank water level in the water filling port 6, opening or closing of water filling port 6 passes through valve control, water filling port 6 is in the state that the valve was closed when not using to keep the leakproofness of extraction tank, prevent that dichloromethane from leaking.
The bottom of the extraction tank body 2 is also provided with a sewage outlet 8, so that the extraction sewage is convenient to discharge, recover and treat.
The godet roller 5 is connected with a motor through a gear transmission structure.
The extraction tank cover 1 is provided with an air outlet 7 for discharging steam. The air outlet 1 is sequentially connected with a condenser 9 and a dichloromethane separating device 10 through pipelines. Most of the gas coming out from the gas outlet 7 is dichloromethane gas, a small amount of water vapor is brought out, mixed gas of dichloromethane and water vapor is introduced into the condenser 9 for condensation, and since dichloromethane is insoluble in water and has density higher than water, and further, the dichloromethane is mixed with water at low temperature to generate a layering phenomenon, so that the dichloromethane can be separated by using the dichloromethane separating device 10.
The extraction tank in this embodiment is made of stainless steel, ceramic or teflon corrosion resistant material.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a dichloromethane extraction device of ultra high molecular weight polyethylene production, is including the extraction tank that is used for holding water, its characterized in that, the extraction tank include extraction capping and extraction tank body, extraction capping and extraction tank body can dismantle the connection, the bottom of extraction tank body be provided with heating device and bubble generator, be provided with the temperature sensor of the temperature of measuring water on the lateral wall of extraction tank body, this internal godet that is provided with a plurality of crisscross settings of extraction tank pull ultra high molecular weight polyethylene and get into the water bath.
2. The extraction apparatus for dichloromethane produced from ultra-high molecular weight polyethylene fiber as claimed in claim 1, wherein the heating device is electrically connected to the temperature sensor, and the heating device is automatically turned on or off according to the temperature measured by the temperature sensor.
3. The extraction apparatus for dichloromethane produced from ultra-high molecular weight polyethylene fiber as claimed in claim 1, wherein the side wall of the extraction tank body is further provided with an inlet and an outlet for ultra-high molecular weight polyethylene fiber.
4. The apparatus of claim 3, wherein the UHMWPE fibers enter the inlet via a fiber feeding roller, and are guided out of the outlet via a fiber discharging roller after being extracted, and the inlet and the outlet are hermetically connected to a pipeline.
5. The extraction apparatus for dichloromethane produced from ultra-high molecular weight polyethylene fiber according to claim 1, wherein the extraction tank cover is further provided with a water injection port through which water is injected to maintain the stability of the water level in the extraction tank.
6. The extraction apparatus for dichloromethane produced from ultra-high molecular weight polyethylene fiber as claimed in claim 5, wherein the bottom of the extraction tank body is further provided with a sewage draining outlet.
7. The extraction apparatus for dichloromethane produced from ultra-high molecular weight polyethylene fiber as claimed in claim 1, wherein the godet roller is connected with the motor through a gear transmission structure.
8. The extraction apparatus for dichloromethane produced from ultra-high molecular weight polyethylene fiber as claimed in claim 1, wherein the extraction tank cover is provided with a gas outlet for discharging steam.
9. The extraction apparatus for dichloromethane produced from ultra-high molecular weight polyethylene fiber as claimed in claim 8, wherein the gas outlet is connected with the condenser and the dichloromethane separation apparatus in sequence through a pipeline.
10. The extraction apparatus for methylene chloride produced from ultra-high molecular weight polyethylene fiber according to any one of claims 1 to 9, wherein the extraction tank is made of stainless steel, ceramic or polytetrafluoroethylene corrosion-resistant material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920645783.7U CN209941157U (en) | 2019-05-07 | 2019-05-07 | Dichloromethane extraction device for producing ultra-high molecular weight polyethylene fiber |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920645783.7U CN209941157U (en) | 2019-05-07 | 2019-05-07 | Dichloromethane extraction device for producing ultra-high molecular weight polyethylene fiber |
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| CN209941157U true CN209941157U (en) | 2020-01-14 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113046846A (en) * | 2021-03-08 | 2021-06-29 | 上海工程技术大学 | Continuous extraction device for preparing hollow fiber membrane |
| CN114215884A (en) * | 2021-12-06 | 2022-03-22 | 中材锂膜有限公司 | Integrated transmission system with low rotational inertia for wet lithium battery diaphragm extraction |
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2019
- 2019-05-07 CN CN201920645783.7U patent/CN209941157U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113046846A (en) * | 2021-03-08 | 2021-06-29 | 上海工程技术大学 | Continuous extraction device for preparing hollow fiber membrane |
| CN114215884A (en) * | 2021-12-06 | 2022-03-22 | 中材锂膜有限公司 | Integrated transmission system with low rotational inertia for wet lithium battery diaphragm extraction |
| CN114215884B (en) * | 2021-12-06 | 2023-06-23 | 中材锂膜有限公司 | Low-moment-of-inertia integrated transmission system for wet lithium battery diaphragm extraction |
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