CN214514532U - Polyethylene cracking separation purification cauldron - Google Patents
Polyethylene cracking separation purification cauldron Download PDFInfo
- Publication number
- CN214514532U CN214514532U CN202023064131.6U CN202023064131U CN214514532U CN 214514532 U CN214514532 U CN 214514532U CN 202023064131 U CN202023064131 U CN 202023064131U CN 214514532 U CN214514532 U CN 214514532U
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- China
- Prior art keywords
- polyethylene
- kettle
- cauldron
- cauldron body
- purification
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- -1 Polyethylene Polymers 0.000 title claims abstract description 93
- 239000004698 Polyethylene Substances 0.000 title claims abstract description 91
- 229920000573 polyethylene Polymers 0.000 title claims abstract description 91
- 238000000746 purification Methods 0.000 title claims abstract description 31
- 238000000926 separation method Methods 0.000 title claims abstract description 17
- 238000005336 cracking Methods 0.000 title claims description 15
- 239000012535 impurity Substances 0.000 claims abstract description 34
- 238000003756 stirring Methods 0.000 claims abstract description 20
- 238000007599 discharging Methods 0.000 claims description 15
- 239000011261 inert gas Substances 0.000 claims description 14
- 239000007789 gas Substances 0.000 claims description 11
- 238000012546 transfer Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 21
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 3
- 238000007689 inspection Methods 0.000 abstract description 2
- 230000009467 reduction Effects 0.000 abstract description 2
- 238000001816 cooling Methods 0.000 description 34
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 14
- 239000000523 sample Substances 0.000 description 11
- 238000005070 sampling Methods 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 229910001873 dinitrogen Inorganic materials 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 150000001247 metal acetylides Chemical class 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
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- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
The utility model discloses a polyethylene schizolysis separation purification cauldron, it includes the cauldron body, the cauldron body is including setting up the polyethylene pan feeding mouth in cauldron body one side, set up at the polyethylene discharge gate of polyethylene pan feeding mouth offside, set up the heavy matter impurity discharge port in cauldron body bottom, set up the sample connection that is used for the polyethylene sample in cauldron body bottom, set up the agitating unit who is used for stirring polyethylene in the cauldron body, and set up the light impurity eduction gear on the cauldron body, this purification cauldron can realize the discharge of heavy matter and light matter behind the polyethylene schizolysis, realize the purification to polyethylene, can accelerate the purification process simultaneously, improve polyethylene schizolysis production efficiency, and can get the material inspection to the polyethylene after the purification, guarantee polyethylene purification effect, and the reduction in production cost.
Description
Technical Field
The utility model belongs to the technical field of the polyethylene schizolysis, specifically speaking relates to a polyethylene schizolysis separation purification cauldron.
Background
Polyethylene wax is a chemical material and is widely used because of its excellent cold resistance, heat resistance, chemical resistance and wear resistance. The polyethylene wax is obtained by high-temperature cracking of polyethylene, and the polyethylene after cracking enters a purification kettle to remove impurities, so that the polyethylene wax is produced.
In the prior art, for the purification of polyethylene, the polyethylene is purified in a way of automatic layering after standing, so that a large amount of time is needed for standing the polyethylene, and meanwhile, the polyethylene with small molecular weight is dissolved in the polyethylene feed liquid in a gaseous state, so that the purity of the polyethylene feed liquid is reduced, and the production cost is increased.
Accordingly, further developments and improvements are still needed in the art.
SUMMERY OF THE UTILITY MODEL
Aiming at various defects in the prior art and solving the problems, the polyethylene cracking separation and purification kettle is provided, and the equipment can improve the product quality and reduce the production cost.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a polyethylene schizolysis separation purification cauldron, its includes the cauldron body, the cauldron body is including setting up the polyethylene pan feeding mouth in cauldron body one side, setting up the polyethylene discharge gate in polyethylene pan feeding mouth offside, setting up the heavy matter impurity discharge port in cauldron body bottom, setting up the sample connection that is used for the polyethylene sample in cauldron body bottom, setting up the internal agitating unit who is used for stirring polyethylene of cauldron and the light impurity eduction gear of setting on the cauldron body.
Preferably, the kettle body is of a cylindrical circular truncated cone splicing structure, and the diameter of the bottom of the kettle body is smaller than that of the top of the kettle body.
Preferably, the light impurity discharging device includes an inert gas introducing device provided at a top end of the kettle body for introducing gas into the kettle body, and a light impurity discharging port provided at the top end of the kettle body for discharging light impurities.
Preferably, the light impurity discharging port is provided with a vacuum device for completely discharging the light impurities.
Preferably, the inert gas introducing device comprises an inert gas tank and a vent pipe connected with the inert gas tank and used for introducing gas into the kettle body, and a gas outlet of the vent pipe is arranged at the lower side in the kettle body.
Preferably, the stirring device comprises a stirring motor arranged outside the kettle body and a stirring blade connected with the stirring motor and arranged in the kettle body and used for stirring polyethylene.
Preferably, the purification kettle is provided with a vacuum heat-insulating layer, and the vacuum heat-insulating layer is arranged on the kettle body.
Preferably, the kettle body is further provided with a thermometer, and the thermometer is arranged at the top of the kettle body.
Preferably, still including setting up the supporting seat that is used for bearing the weight of the cauldron body in cauldron body bottom, be provided with the universal wheel on the supporting seat, realize the free transfer of separation purification cauldron through the universal wheel.
Has the advantages that:
the utility model provides a polyethylene schizolysis separation purification cauldron, this purification cauldron can realize the discharge of polyethylene schizolysis back heavy matter and light material, realizes the purification to polyethylene, can accelerate the purification process simultaneously, improves polyethylene schizolysis production efficiency, and can get the material inspection to the polyethylene after the purification, guarantees polyethylene purification effect, reduction in production cost.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a polyethylene cracking separation and purification kettle according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a sampling device of a polyethylene cracking separation and purification kettle in an embodiment of the present invention.
In the drawings: 100 polyethylene inlet, 200 polyethylene outlet, 300 heavy impurity outlet, 400 sampling port, 500 agitating unit, 610 gas inlet device, 620 light impurity outlet, 630 evacuating device, 710 thermometer inlet, 810 cooling tube, 820 switch valve, 830 cooling box, 831 first box, 832 second box, 833 fastening bolt, 840 inlet pipe, 850 outlet pipe, 860 connecting pipe.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the following description, together with the drawings of the present invention, clearly and completely describes the technical solution of the present invention, and based on the embodiments in the present application, other similar embodiments obtained by those skilled in the art without creative efforts shall all belong to the protection scope of the present application. In addition, directional terms such as "upper", "lower", "left", "right", etc. in the following embodiments are directions with reference to the drawings only, and thus, the directional terms are used for illustration and not for limitation of the present invention.
The utility model provides a polyethylene schizolysis separation purification cauldron, it includes the cauldron body, the cauldron body is including setting up polyethylene pan feeding mouth 100 in cauldron body one side, setting up at polyethylene pan feeding mouth 100 offside polyethylene discharge gate 200, setting up at the heavy matter impurity discharge port 300 of cauldron body bottom, setting up the sample connection 400 that is used for the polyethylene sample in cauldron body bottom, setting up the agitating unit 500 that is used for stirring polyethylene in the cauldron body and set up the light impurity eduction gear on the cauldron body.
Specifically, the cauldron body is cylinder round platform mosaic structure, and cauldron body bottom diameter is less than cauldron body top diameter, and the heavy matter impurity of being convenient for collects in cauldron body bottom, and it discharges to be convenient for.
In a preferred embodiment, the heavy impurities are carbides generated by pyrolysis, the density of the carbides is greater than that of the polyethylene material, and therefore the carbides can sink to the bottom of the kettle body after standing.
Specifically, the light impurity discharging device includes an inert gas introducing device 610 disposed at the top of the kettle body for introducing gas into the kettle body, and a light impurity discharging port 620 disposed at the top of the kettle body for discharging light impurities.
Specifically, the light impurity discharging port 620 is provided with a vacuum pumping device 630 for completely discharging the light impurities.
Specifically, the inert gas introducing device 610 includes an inert gas tank and a vent pipe connected to the inert gas tank for introducing gas into the autoclave body, and a gas outlet of the vent pipe is disposed at the lower side of the autoclave body.
In a preferred embodiment, the vent pipe is arranged at the top end of the box body close to one side of the polyethylene feeding port 100, and the low molecular weight gaseous polyethylene material remained in the polyethylene material is taken out by introducing an inert gas into the kettle body through the vent pipe.
In a preferred embodiment, the inert gas is nitrogen, and the cost can be effectively controlled by using the nitrogen under the condition that the nitrogen does not react with polyethylene, so that the condition that the high-temperature polyethylene material is in contact with oxygen to generate combustion is avoided, and the production safety is ensured.
In a preferred embodiment, the vacuum pumping device 630 is arranged in the middle of the top of the kettle body, and the light impurities in the kettle body are pumped out together with the nitrogen through the vacuum pumping device 630, so that the light impurities are prevented from remaining in the polyethylene material, and the purity of the polyethylene material can be improved.
Specifically, agitating unit 500 is including setting up the stirring motor outside the cauldron body, and be connected with stirring motor and set up the stirring leaf that is used for stirring polyethylene in the cauldron body, discharges gaseous light impurity from polyethylene material through the stirring, sees the device through heavily shaking and extracts.
Specifically, the purification kettle is provided with a vacuum heat-insulating layer, the vacuum heat-insulating layer is arranged on the kettle body, the heat-insulating layer is arranged to ensure that sufficient temperature is obtained during separation and purification, and the temperature of the polyethylene feed liquid is prevented from dropping so that the low-molecular-weight polyethylene is changed from a gaseous state to a liquid state and returns to the polyethylene feed liquid.
Specifically, still be provided with the thermometer on the cauldron body, the thermometer sets up at cauldron body top, the thermometer probe sets up at the cauldron internally, and the internal temperature of ability real time monitoring cauldron avoids the internal temperature of cauldron to descend and causes the polyethylene material to solidify, and causes the unable complete discharge of polyethylene of small molecular weight to cause easily to contain impurity in the polyethylene material.
In a preferred embodiment, the thermometer is arranged to be a detachable structure, a thermometer inserting hole 710 for installing the thermometer is formed in the kettle body, and a tight valve is arranged on the thermometer inserting hole 710, so that the phenomenon that air is sucked into the kettle body reversely to cause polyethylene combustion is avoided.
The device comprises a kettle body, and is characterized by comprising a supporting seat arranged at the bottom of the kettle body and used for bearing the kettle body, wherein universal wheels are arranged on the supporting seat, and the free transfer of the separation and purification kettle is realized through the universal wheels.
Specifically, a sampling device is arranged on the sampling port 400, the sampling device comprises a cooling pipe 810, a switch valve 820 and a cooling box 830, and the cooling pipe 810 is communicated with the sampling port 400; two switching valves 820 are provided, and both the switching valves 820 are provided on the cooling pipe 810; the cooling tube 810 passes through the cooling box 830, and the cooling box 830 is located between two ooff valves 820, and the cooling box 830 expert has cold water, sets up two ooff valves 820 to ensure that in the sampling process, ethylene, propylene under the internal high temperature state of cauldron can not contact with a large amount of air, have avoided ethylene, propylene under the high temperature state to produce the explosion because of contacting with a large amount of air. And simultaneously, the utility model discloses can cool off the inside sample that is located cooling box 830 through the water-cooling to improve the cooling rate of sample in cooling tube 810.
Specifically, the sampling device further comprises a water inlet pipe 840 and a water outlet pipe 850, and the water inlet pipe 840 and the water outlet pipe 850 are communicated with the cooling box 830.
Specifically, the water outlet pipe 850 is located above the cooling pipe 810, and water in the cooling box 830 can be in complete contact with the outer wall of the cooling pipe 810 located in the cooling box 830, so that the cooling speed of the sample in the cooling pipe 810 is further increased.
Specifically, the part that the cooling tube 810 is located cooling box 830 is S type return bend, the utility model discloses a set up cooling tube 810 into S type return bend, increased the cooling tube 810 length that is located cooling box 830, further improved the cooling rate of sample in cooling tube 810.
Specifically, the cooling box 830 comprises a first box 831 and a second box 832, and cooling grooves for containing water are formed in two sides of the first box 831, which are close to each other, of the second box 832; the first case 831 and the second case 832 sandwich the cooling pipe 810, and the first case 831 and the second case 832 are detachably coupled together.
Specifically, the cooling box 830 further includes a fastening bolt 833, and the fastening bolt 833 detachably connects the second box 832 and the first box 831 together.
Specifically, sampling device still includes connecting pipe 860, and the one end and the sample connection 400 fixed connection of connecting pipe 860 near the cauldron body, the one end that connecting pipe 860 deviates from the cauldron body links together with the one end detachable that cooling tube 810 is close to the cauldron body, connecting pipe 860 and cauldron body and cooling tube 810 intercommunication.
The utility model discloses a specific use is as follows, use evacuating device 630, with the internal air evacuation of cauldron, then through polyethylene pan feeding mouth 100, the polyethylene material of schizolysis lets in the cauldron internal, let in after to the cauldron internal nitrogen gas that lets in, nitrogen gas directly lets in the polyethylene material, take out the gaseous state polyethylene material of small molecular weight in the polyethylene material through the effect of nitrogen gas, agitating unit 500 starts to stir when letting in nitrogen gas, make the polyethylene material of small molecular weight more abundant take out, evacuating device 630 simultaneously continues to evacuate, continuously take out nitrogen gas and small molecular weight polyethylene material, after stopping letting in nitrogen gas, evacuating device 630 continues to evacuate, ensure the internal gas of cauldron completely discharges, then the layering of stewing, discharge the material that receives high temperature carbonization through heavy matter impurity discharge port 300 after the layering, take out through sample connection 400 after discharging and examine, if no black heavy impurities exist, the separation and purification work is finished, and the purified polyethylene material can be discharged through a polyethylene discharge port 200.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the scope of the invention, i.e. the present invention is intended to cover all equivalent variations and modifications within the scope of the present invention.
Claims (9)
1. The utility model provides a polyethylene schizolysis separation purification cauldron which characterized in that, includes the cauldron body, the cauldron body is including setting up the polyethylene pan feeding mouth in cauldron body one side, setting up at the polyethylene discharge gate of polyethylene pan feeding mouth offside, setting up the heavy matter impurity discharge port in cauldron body bottom, setting up the sample connection that is used for the polyethylene sample in cauldron body bottom, setting up the internal agitating unit who is used for stirring polyethylene of cauldron and the light impurity eduction gear of setting on the cauldron body.
2. The polyethylene cracking, separating and purifying kettle according to claim 1, wherein the kettle body is a splicing structure of cylindrical truncated cones, and the diameter of the bottom of the kettle body is smaller than that of the top of the kettle body.
3. The polyethylene cracking, separating and purifying kettle according to claim 1, wherein the light impurities discharging means comprises an inert gas introducing means disposed at the top of the kettle for introducing gas into the kettle, and a light impurities discharging port disposed at the top of the kettle for discharging light impurities.
4. The polyethylene cracking separation purification kettle of claim 3, wherein a vacuum extractor for completely discharging the light impurities is arranged on the light impurities discharge port.
5. The polyethylene cracking, separating and purifying kettle according to claim 3, wherein the inert gas introducing device comprises an inert gas tank and a vent pipe connected with the inert gas tank for introducing gas into the kettle body, and the gas outlet of the vent pipe is arranged at the lower side in the kettle body.
6. The polyethylene cracking separation purification kettle of claim 1, wherein the stirring device comprises a stirring motor arranged outside the kettle body and a stirring blade connected with the stirring motor and arranged in the kettle body for stirring polyethylene.
7. The polyethylene cracking, separating and purifying kettle according to claim 1, wherein the purifying kettle is provided with a vacuum heat-insulating layer, and the vacuum heat-insulating layer is arranged on the kettle body.
8. The polyethylene cracking, separating and purifying kettle according to claim 1, wherein a thermometer is further arranged on the kettle body, and the thermometer is arranged at the top of the kettle body.
9. The polyethylene cracking, separating and purifying kettle according to claim 1, further comprising a supporting seat disposed at the bottom of the kettle for supporting the kettle, wherein the supporting seat is provided with universal wheels, and the free transfer of the separating and purifying kettle is realized through the universal wheels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023064131.6U CN214514532U (en) | 2020-12-18 | 2020-12-18 | Polyethylene cracking separation purification cauldron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023064131.6U CN214514532U (en) | 2020-12-18 | 2020-12-18 | Polyethylene cracking separation purification cauldron |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214514532U true CN214514532U (en) | 2021-10-29 |
Family
ID=78294629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023064131.6U Expired - Fee Related CN214514532U (en) | 2020-12-18 | 2020-12-18 | Polyethylene cracking separation purification cauldron |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214514532U (en) |
-
2020
- 2020-12-18 CN CN202023064131.6U patent/CN214514532U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211029 |
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| CF01 | Termination of patent right due to non-payment of annual fee |