CN220736329U - Vacuum separation device for polyester resin micromolecular residues - Google Patents
Vacuum separation device for polyester resin micromolecular residues Download PDFInfo
- Publication number
- CN220736329U CN220736329U CN202322308532.9U CN202322308532U CN220736329U CN 220736329 U CN220736329 U CN 220736329U CN 202322308532 U CN202322308532 U CN 202322308532U CN 220736329 U CN220736329 U CN 220736329U
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- Prior art keywords
- vacuum
- polyester resin
- separation device
- residues
- reciprocating screw
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- 229920001225 polyester resin Polymers 0.000 title claims abstract description 50
- 239000004645 polyester resin Substances 0.000 title claims abstract description 50
- 238000000926 separation method Methods 0.000 title claims abstract description 34
- 238000003756 stirring Methods 0.000 claims description 34
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 25
- 229920000742 Cotton Polymers 0.000 claims description 13
- 230000001877 deodorizing effect Effects 0.000 claims description 12
- 238000001179 sorption measurement Methods 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 9
- 238000003860 storage Methods 0.000 claims description 8
- 238000001914 filtration Methods 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000009423 ventilation Methods 0.000 claims description 2
- 150000003384 small molecules Chemical group 0.000 abstract description 5
- 238000007599 discharging Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 17
- 239000010410 layer Substances 0.000 description 10
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920006337 unsaturated polyester resin Polymers 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 150000002009 diols Chemical class 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 150000007519 polyprotic acids Polymers 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 229920006305 unsaturated polyester Polymers 0.000 description 1
- 239000011345 viscous material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Landscapes
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The utility model discloses a vacuum separation device for polyester resin micromolecular residues, which relates to the technical field of vacuum separation devices and comprises a separation box, wherein a vacuum tank is fixedly arranged at the left side of the bottom end of the inner surface of the separation box, a driving motor is fixedly arranged in the middle of the upper end of the outer surface of the vacuum tank, a circulating mechanism is arranged at the lower end of the driving motor, penetrates through the upper end of the outer surface of the vacuum tank, the circulating mechanism consists of a reciprocating screw rod, a telescopic spring, a telescopic column, a movable sleeve, an outer sleeve, a guide chute, a limiting sliding block and a bearing ring, and the lower end of the driving motor is provided with the reciprocating screw rod. Compared with the existing common polyester resin small molecule residue vacuum separation device, the polyester resin small molecule residue vacuum separation device has the advantages that the polyester resin is stirred and turned up and down circularly, the activity of molecules is enhanced at high temperature, the efficiency of discharging the molecule residues can be greatly improved, the polyester resin is prevented from being coagulated at high temperature, and the use stability is improved.
Description
Technical Field
The utility model relates to the technical field of vacuum separation devices, in particular to a vacuum separation device for small molecular residues of polyester resin.
Background
Polyester resins are a generic term for polymer compounds obtained by polycondensation of a diol or a dibasic acid or a polyhydric alcohol and a polybasic acid. The polyester resins are classified into saturated polyester resins and unsaturated polyester resins. The unsaturated polyester adhesive mainly comprises unsaturated polyester resin, pigment and filler, initiator and other auxiliary agents. The adhesive has the advantages of small viscosity, easy wetting, good manufacturability, large hardness of the cured adhesive layer, good transparency, high brightness, quick curing under room temperature pressurization, good heat resistance and good electrical property. The disadvantages are large shrinkage, low adhesive toughness, poor chemical medium resistance and water resistance, and the use for non-structural adhesives. The polyester resin is mainly used for gluing glass fiber reinforced plastic, hard plastic, concrete, electrical sealing and the like, but a certain amount of viscous micromolecular residues exist in the production process of the polyester resin or are mixed in polyester resin bubbles, and in order to ensure the production quality of the polyester resin, the micromolecular residues are required to be discharged together with the bubbles through a vacuum separation device.
The existing vacuum separating device for the small molecular residues of the polyester resin is used for placing the polyester resin into the separating device, sucking the polyester resin to a vacuum state, utilizing negative pressure difference to discharge and extrude the small molecular bubble residues in the separating device, wherein the polyester resin is made of viscous materials, small molecular bubbles at the bottom and in the separating device are difficult to rapidly discharge through the negative pressure difference, the polyester resin is packaged and sealed in the separating device in a standing state, so that the small molecular bubble discharging efficiency is low, and the bubble molecules in the separating device are difficult to completely discharge, so that the quality of the polyester resin is low.
Accordingly, in view of the above, an improvement of the conventional structure is proposed to provide a vacuum stripping device for small molecular residues of polyester resin.
Disclosure of Invention
The utility model aims to provide a vacuum separation device for small molecular residues of polyester resin, which is used for solving the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a polyester resin micromolecule residue vacuum break away from device, includes breaks away from the case, break away from the inside surface bottom left side fixed mounting of case and have the vacuum tank, the fixed driving motor that is provided with in surface upper end middle part of vacuum tank, driving motor's lower extreme runs through vacuum tank surface upper end and is provided with circulation mechanism, circulation mechanism comprises reciprocating screw rod, telescopic spring, telescopic column, movable sleeve, outer sleeve, direction spout, spacing slider and bearing ring, driving motor's lower extreme is provided with reciprocating screw rod, reciprocating screw rod's inside surface middle part lower extreme fixed mounting has telescopic spring, telescopic spring's lower extreme is fixedly provided with the telescopic column, and the telescopic column slides and set up in reciprocating screw rod's inside, reciprocating screw rod's surface threaded connection has movable sleeve, movable sleeve's outside cover is equipped with the outer sleeve, and the upper end of outer sleeve and the inside surface upper end fixed connection of vacuum tank, the guide spout has been seted up to the inside slip of guide chute, and spacing slider's subtended one end and movable sleeve fixed connection, movable sleeve's lower extreme fixedly is provided with the telescopic column, the fixed stirring rod is provided with the bearing ring, the fixed surface is provided with the fixed stirring rod around the fixed surface of stirring rod, the fixed stirring rod is provided with the fixed surface around the fixed column.
Preferably, an electromagnetic valve port is arranged at the upper end of the right side of the outer surface of the vacuum tank, the right end of the electromagnetic valve port is connected with a vacuum pump through a pipeline, and a filtering mechanism is connected above the left end of the vacuum pump through a pipeline.
Preferably, the filter mechanism is composed of a filter box, a fan, adsorption cotton, a deodorizing layer and an activated carbon plate, wherein the filter box is connected above the left end of the vacuum pump through a pipeline, and the fan is installed at the front end of the inner surface of the filter box.
Preferably, the inner surface of the filter box is sequentially provided with adsorption cotton, a deodorizing layer and an activated carbon plate from front to back, the adsorption cotton, the deodorizing layer and the activated carbon plate are fixedly connected with the filter box, and the filter box is arranged on the rear side of the inner surface of the separation box through fixing bolts.
Preferably, a drain pipe is arranged above the rear end of the outer surface of the filter box, and penetrates through the right side of the inner surface of the separation box.
Preferably, a feeding pipe is fixedly arranged on the left side of the upper end of the outer surface of the vacuum tank, a sealing valve is arranged at the upper end of the feeding pipe in a penetrating way through the separation box, and a suction pump is connected to the right side of the sealing valve through a pipeline.
Preferably, the right end of the suction pump is connected with a pressurizing storage bin through a pipeline, the pressurizing storage bin is fixedly connected with the right side above the outer surface of the separation box, and ventilation mesh plates are arranged on two sides of the outer surface of the separation box.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the utility model, through the arrangement of the driving motor, the circulating mechanism, the stirring rod and the heating ring, the driving motor drives the reciprocating screw rod to rotate, the stirring rod is connected with the stirring rod through the telescopic spring and the telescopic column, so that the stirring rod can rotate along with the reciprocating screw rod when the reciprocating screw rod rotates, the polyester resin is stirred, the movable sleeve moves up and down circularly under the limitation of the guide chute and the limiting sliding block when the reciprocating screw rod rotates, the movable sleeve is connected with the stirring rod through the bearing ring, the stirring rod is driven to move up and down when the movable sleeve moves up and down circularly, the stirring rod is not influenced, the telescopic spring and the telescopic column can be matched with the stirring rod to extend, the stirring rod is not influenced to move up and down, the stirring rod can stir the polyester resin in an up and down circulating manner, the polyester resin is continuously turned in the vacuum tank, the vacuum pumping efficiency of small molecular residues is improved, the temperature of the small molecules and the bubble molecules in the polyester resin can be improved through the heating ring, the condensation of the polyester resin is prevented, the molecular residue discharging efficiency is further improved, and the use stability is improved;
2. through the arrangement of the electromagnetic valve port, the vacuum pump, the filtering mechanism and the discharge pipe, the vacuum pump pumps residual fine molecular gas through the pipeline, then the residual fine molecular gas is discharged into the filter box through the pipeline, the blower at the front end of the filter box and the gas continuously discharged by the vacuum pump blow the small molecular residue to the rear side of the filter box, the small molecular gas is mixed and deodorized, filtered and separated through the adsorption cotton, the deodorizing layer and the active carbon plate, the molecular residue is separated from the gas and remains in the filter box, the residue is collected, and the gas is discharged through the discharge pipe after being deodorized and purified, so that the pollution to the air caused by direct discharge is prevented, the small molecular residue can be intensively treated, and the subsequent taking out is convenient for secondary utilization.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic cross-sectional view of a knock-out box of the present utility model;
FIG. 3 is a schematic cross-sectional view of a vacuum tank according to the present utility model;
FIG. 5 is a schematic view of a circulation mechanism according to the present utility model;
FIG. 4 is a schematic diagram of a filtering mechanism according to the present utility model.
In the figure: 1. separating from the box; 2. a vacuum tank; 3. a driving motor; 4. a circulation mechanism; 401. a reciprocating screw; 402. a telescopic spring; 403. a telescopic column; 404. a movable sleeve; 405. an outer sleeve; 406. a guide chute; 407. a limit sliding block; 408. a bearing ring; 5. a stirring rod; 6. a heating ring; 7. an electromagnetic valve port; 8. a vacuum pump; 9. a filtering mechanism; 901. a filter box; 902. a blower; 903. adsorbing cotton; 904. a deodorizing layer; 905. an activated carbon plate; 10. a discharge pipe; 11. a feed pipe; 12. sealing the valve; 13. a suction pump; 14. pressurizing the storage bin; 15. a breathable mesh plate.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 2-4, a vacuum separation device for small molecular residues of polyester resin comprises a separation box 1, a vacuum tank 2 is fixedly installed at the left side of the bottom end of the inner surface of the separation box 1, a driving motor 3 is fixedly arranged in the middle of the upper end of the outer surface of the vacuum tank 2, a circulating mechanism 4 is arranged at the lower end of the driving motor 3, the circulating mechanism 4 is composed of a reciprocating screw 401, a telescopic spring 402, a telescopic column 403, a movable sleeve 404, an outer sleeve 405, a guide sliding groove 406, a limit sliding block 407 and a bearing ring 408, the lower end of the driving motor 3 is provided with the reciprocating screw 401, the telescopic spring 402 is fixedly arranged at the lower end of the middle part of the inner surface of the reciprocating screw 401, the telescopic column 403 is fixedly arranged at the lower end of the telescopic column 403, the telescopic column 403 is slidably arranged in the reciprocating screw 401, the outer surface of the reciprocating screw 401 is in threaded connection with the movable sleeve 404, an outer sleeve 405 is sleeved on the outer side of the movable sleeve 404, the upper end of the outer sleeve 405 is fixedly connected with the upper end of the inner surface of the vacuum tank 2, the two sides of the inner surface of the outer sleeve 405 are provided with the guide sliding grooves 406, the inner sliding block 407 is slidably arranged in the inner surface of the guide sliding groove 407, the inner sliding block 407 is fixedly connected with the limit sliding block 408, the upper end of the outer sleeve is fixedly connected with the upper end of the bearing ring 408, the upper end of the inner surface of the outer sleeve 5 is fixedly connected with the outer sleeve 408, the upper end of the vacuum tank 5 is fixedly connected with the heating sleeve, and the upper end of the stirring rod 5 is fixedly connected with the upper end of the stirring rod 5.
Further, the expansion spring 402 and the expansion column 403 are connected with the stirring rod 5, so that the stirring rod 5 can follow rotation when the reciprocating screw 401 rotates, and the polyester resin is stirred.
Further, when the reciprocating screw 401 rotates, the movable sleeve 404 moves up and down circularly under the restriction of the guide chute 406 and the limit slider 407.
Further, the movable sleeve 404 is connected with the stirring rod 5 through the bearing ring 408, and when the movable sleeve 404 moves up and down circularly, the stirring rod 5 is driven to move up and down, and the rotation of the stirring rod 5 is not affected.
Further, the heating ring 6 heats the inside of the vacuum tank 2, and the high temperature can improve the movement activity of small molecules and bubble molecules inside the polyester resin and prevent the polyester resin from condensing.
As shown in fig. 1, fig. 2 and fig. 5, the upper end of the outer surface right side of the vacuum tank 2 is provided with an electromagnetic valve port 7, and the right end of the electromagnetic valve port 7 is connected with a vacuum pump 8 through a pipeline, and the upper left end of the vacuum pump 8 is connected with a filter mechanism 9 through a pipeline, the filter mechanism 9 is provided with a discharge pipe 10 above the outer surface rear end of the filter tank 901, an adsorption cotton 903, an odor removal layer 904 and an activated carbon plate 905, and the upper left end of the vacuum pump 8 is connected with the filter tank 901 through a pipeline, and the front end of the inner surface of the filter tank 901 is provided with a fan 902, the inner surface of the filter tank 901 is sequentially provided with an adsorption cotton 903, an odor removal layer 904 and an activated carbon plate 905 from front to back, and the adsorption cotton 903, the odor removal layer 904 and the activated carbon plate 905 are all fixedly connected with the filter tank 901 through a fixing bolt, and the filter tank 901 is installed on the inner surface rear side of the separation tank 1, a discharge pipe 10 penetrates through the inner surface right side of the separation tank 1, the upper left side of the outer surface upper left side of the vacuum tank 2 is fixedly provided with a filter tank 11, and the upper left side of the suction hopper 11 is provided with a valve 12 penetrating through the suction hopper 12, and the suction hopper 13 is connected with the right side of the suction pipe 13 through the sealing inlet pipe 13, and the suction hopper 13 is connected with the outer surface 13 on the suction hopper 1, and the suction hopper 13 is fixedly connected with the two sides of the suction hopper 13.
Further, the vacuum pump 8 pumps out the residual fine molecular gas through a pipeline.
Further, the molecular gas enters the filter box 901, and the air continuously discharged from the fan 902 and the vacuum pump 8 at the front end of the filter box 901 blows small molecular residues to the rear side of the filter box 901.
Further, after the gas small molecules are mixed and deodorized, filtered and separated by the adsorption cotton 903, the deodorizing layer 904 and the activated carbon plate 905, the molecular residues are separated from the gas and remain in the filter box 901, and the residues are collected.
Further, the gas is discharged through the discharge pipe 10 after being deodorized and purified, so that the air is prevented from being polluted by direct discharge.
Working principle: when the vacuum separation device for the small molecular residues of the polyester resin is used, firstly, the polyester resin is poured into a pressurizing storage bin 14, the pressurizing storage bin 14 is sealed, after being continuously pressurized, a sealing valve 12 and a suction pump 13 are opened, the polyester resin can be rapidly sucked into a vacuum tank 2 through a feeding pipe 11, the pressurizing storage bin 14 is pressurized, the polyester resin is prevented from being stuck, then the sealing valve 12 is closed, a driving motor 3 drives a reciprocating screw 401 to rotate, the reciprocating screw 401 is connected with a stirring rod 5 through a telescopic spring 402 and a telescopic column 403, the stirring rod 5 can rotate along with the rotation of the screw 401 when the reciprocating screw rotates, the movable sleeve 404 moves up and down circularly under the limit of a guide chute 406 and a limit sliding block 407 when the reciprocating screw 401 rotates, the movable sleeve 404 is connected with the stirring rod 5 through the bearing ring 408, when the movable sleeve 404 moves up and down circularly, the stirring rod 5 is driven to move up and down, the rotation of the stirring rod 5 is not influenced, the telescopic spring 402 and the telescopic column 403 can be matched with the stirring rod 5 to extend, the up and down movement of the stirring rod 5 is not influenced, the stirring rod 5 can stir polyester resin in an up and down circulation manner, the polyester resin can be continuously turned in the vacuum tank 2, the vacuum extraction efficiency of micromolecule residues is improved, the heating ring 6 heats the inside of the vacuum tank 2, the movement activity of micromolecule and bubble molecules in the polyester resin can be improved at high temperature, the condensation of the polyester resin is prevented, the discharge efficiency of the molecule residues is further improved, the residual micromolecule gases are extracted through the vacuum pump 8, the residual micromolecule gases are discharged into the filter tank 901 through a pipeline, the fan 902 and the vacuum pump 8 at the front end of the filter box 901 continuously exhaust gas to blow the small molecular residues to the rear side of the filter box 901, after the adsorption cotton 903, the deodorizing layer 904 and the activated carbon plate 905 are used for deodorizing, filtering and separating the gas small molecular mixture, the molecular residues are separated from the gas and remain in the filter box 901, the residues are collected, and the gas is discharged through the discharge pipe 10 after deodorizing and purifying, so that the working principle of the polyester resin small molecular residues vacuum separation device is that the polyester resin small molecular residues are separated from the device in vacuum.
Claims (7)
1. The utility model provides a polyester resin micromolecule residue vacuum separation device, includes breaks away from case (1), its characterized in that, break away from the internal surface bottom left side fixed mounting of case (1) and have vacuum tank (2), the fixed driving motor (3) that is provided with in surface upper end middle part of vacuum tank (2), the lower extreme of driving motor (3) runs through vacuum tank (2) surface upper end and is provided with circulation mechanism (4), circulation mechanism (4) are by reciprocating screw rod (401), telescopic spring (402), telescopic column (403), movable sleeve (404), outer sleeve (405), direction spout (406), limit slider (407) and bearing ring (408) are constituteed, the lower extreme of driving motor (3) is provided with reciprocating screw rod (401), the fixed telescopic spring (402) in interior surface middle part lower extreme of reciprocating screw rod (401), and telescopic column (403) slide and set up in the inside of reciprocating screw rod (401), the external surface threaded connection of reciprocating screw rod (401) has movable sleeve (404), the upper end of the vacuum tank (2) is fixed with the outer sleeve (405), guide sliding grooves (406) are formed in two sides of the inner surface of the outer sleeve (405), limiting sliding blocks (407) are arranged in the guide sliding grooves (406) in a sliding mode, one opposite ends of the limiting sliding blocks (407) are fixedly connected with the movable sleeve (404), a bearing ring (408) is fixedly arranged at the lower end of the movable sleeve (404), a stirring rod (5) is fixedly arranged on the inner surface of the bearing ring (408), the top end of the stirring rod (5) is fixedly connected with the telescopic column (403), and heating rings (6) are fixedly arranged around the outer surface of the vacuum tank (2).
2. The vacuum separation device for the small molecular residues of the polyester resin according to claim 1, wherein an electromagnetic valve port (7) is arranged at the upper end of the right side of the outer surface of the vacuum tank (2), the right end of the electromagnetic valve port (7) is connected with a vacuum pump (8) through a pipeline, and a filtering mechanism (9) is connected above the left end of the vacuum pump (8) through a pipeline.
3. The vacuum separation device for the small molecular residues of the polyester resin according to claim 2, wherein the filtering mechanism (9) consists of a filter box (901), a fan (902), adsorption cotton (903), a deodorizing layer (904) and an activated carbon plate (905), the filter box (901) is connected above the left end of the vacuum pump (8) through a pipeline, and the fan (902) is arranged at the front end of the inner surface of the filter box (901).
4. The vacuum separation device for the polyester resin micromolecular residues according to claim 3, wherein the inner surface of the filter box (901) is sequentially provided with adsorption cotton (903), a deodorizing layer (904) and an activated carbon plate (905) from front to back, the adsorption cotton (903), the deodorizing layer (904) and the activated carbon plate (905) are fixedly connected with the filter box (901), and the filter box (901) is mounted on the rear side of the inner surface of the separation box (1) through fixing bolts.
5. A vacuum stripping apparatus for small molecular residues of polyester resin as claimed in claim 3, wherein a discharge pipe (10) is provided above the rear end of the outer surface of the filter tank (901), and the discharge pipe (10) penetrates the right side of the inner surface of the stripping tank (1).
6. The vacuum separation device for the small molecular residues of the polyester resin according to claim 1, wherein a feeding pipe (11) is fixedly arranged on the left side of the upper end of the outer surface of the vacuum tank (2), a sealing valve (12) is arranged at the upper end of the feeding pipe (11) penetrating through the separation box (1), and a suction pump (13) is connected to the right side of the sealing valve (12) through a pipeline.
7. The vacuum separation device for the small molecular residues of the polyester resin according to claim 6, wherein the right end of the suction pump (13) is connected with a pressurizing storage bin (14) through a pipeline, the pressurizing storage bin (14) is fixedly connected with the right side above the outer surface of the separation box (1), and ventilation mesh plates (15) are arranged on two sides of the outer surface of the separation box (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322308532.9U CN220736329U (en) | 2023-08-28 | 2023-08-28 | Vacuum separation device for polyester resin micromolecular residues |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322308532.9U CN220736329U (en) | 2023-08-28 | 2023-08-28 | Vacuum separation device for polyester resin micromolecular residues |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220736329U true CN220736329U (en) | 2024-04-09 |
Family
ID=90557402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322308532.9U Active CN220736329U (en) | 2023-08-28 | 2023-08-28 | Vacuum separation device for polyester resin micromolecular residues |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220736329U (en) |
-
2023
- 2023-08-28 CN CN202322308532.9U patent/CN220736329U/en active Active
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