CN219600347U - Extruder vacuum exhaust device for preventing volatile matters easy to condense and crystallize from blocking exhaust pipe - Google Patents
Extruder vacuum exhaust device for preventing volatile matters easy to condense and crystallize from blocking exhaust pipe Download PDFInfo
- Publication number
- CN219600347U CN219600347U CN202320001805.2U CN202320001805U CN219600347U CN 219600347 U CN219600347 U CN 219600347U CN 202320001805 U CN202320001805 U CN 202320001805U CN 219600347 U CN219600347 U CN 219600347U
- Authority
- CN
- China
- Prior art keywords
- exhaust
- pipe
- extruder
- vacuum
- vacuum exhaust
- Prior art date
- 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.)
- Active
Links
- 230000000903 blocking effect Effects 0.000 title claims abstract description 13
- 238000009833 condensation Methods 0.000 claims abstract description 18
- 230000005494 condensation Effects 0.000 claims abstract description 18
- 238000002425 crystallisation Methods 0.000 claims abstract description 12
- 230000008025 crystallization Effects 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims description 13
- 239000011521 glass Substances 0.000 claims description 5
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims description 3
- 229920005372 Plexiglas® Polymers 0.000 claims description 3
- 230000001174 ascending effect Effects 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000012855 volatile organic compound Substances 0.000 abstract description 10
- 238000007385 chemical modification Methods 0.000 abstract description 3
- 229920003002 synthetic resin Polymers 0.000 abstract description 3
- 239000000057 synthetic resin Substances 0.000 abstract description 3
- 238000002464 physical blending Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 10
- 238000000605 extraction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 238000013022 venting Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000407 epitaxy Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 239000012768 molten material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model relates to an extruder vacuum exhaust device for preventing volatile matters of easy condensation and crystallization from blocking an exhaust pipe, which comprises a machine barrel of an exhaust section of the extruder, wherein an exhaust baffle block is connected to the machine barrel, the end part of the exhaust baffle block, which extends out of the machine barrel, is connected with a vacuum exhaust sleeve head with a condensate tank, a condensate tank outlet is arranged on an exhaust cavity of the vacuum exhaust sleeve head, the condensate tank outlet is connected with an oblique angle pipe with a temperature control jacket, a pressure gauge and a pressure control valve are arranged on a vertical upward branch of the oblique angle pipe, a condensate collecting tank is connected to a vertical downward branch of the oblique angle pipe, and the other end of the oblique angle pipe, which is obliquely downward, is connected with an air extractor. The device is used for solving the problem that volatile organic compounds which are easy to condense and crystallize in a machine barrel easily cause pipeline blockage of a vacuum exhaust device of the extruder when the extruder is used for carrying out physical blending or chemical modification on synthetic resin, so that the extruder can stably run.
Description
Technical Field
The utility model relates to an extruder vacuum exhaust device for preventing volatile matters which are easy to condense and crystallize from blocking an exhaust pipe.
Background
The extruder is an important electromechanical device in the field of plastic processing, and is mainly applied to melt extrusion, physical or chemical modification, granulation and the like of plastic chemical raw materials. Typically, the extruder is operated at barrel temperatures typically up to 170-240 ℃. Synthetic resin raw materials such as polypropylene, polyethylene and the like are prone to Volatile Organic Compounds (VOCs) in the extruder barrel at higher temperatures. Especially in the field of plastic modification, when the modifier relates to volatile components, the volatile components in the barrel cannot all physically combine or chemically react with the raw materials, so that a large amount of volatile organic compounds exist in the barrel. The portion of the volatile organic compounds is removed along the vent path of the extruder and a substantial portion of the volatile is vented through the vacuum vent of the extruder. When the existing vacuum exhaust device is used, after the volatile organic compounds are separated from the high-temperature environment of the machine barrel, the temperature is quickly reduced, and the volatile organic compounds are easy to condense and flow back into the machine barrel. In addition, partial volatile matters are easy to condense and crystallize in a vacuum exhaust device pipeline, so that an exhaust channel is seriously blocked, the effect of the vacuum exhaust device is reduced, even the vacuum exhaust device is invalid, the volatile matters in an extrusion product are greatly increased, and the quality of a plastic modified product is seriously influenced.
Patent CN206011688U discloses an extruder vacuum exhaust device comprising a vacuum seat, an exhaust chamber, a barrel, a condensing tank and the like. The exhaust chamber is arranged above the machine barrel, a hollow exhaust baffle block is arranged between the exhaust chamber and the machine barrel, a flange backflow valve is arranged on an exhaust port, one side of the upper part of the exhaust chamber is connected with a transverse exhaust pipe connected with an exhaust pipe, and the exhaust pipe is connected with a vacuum pump. The top of the condensing tank is connected with the exhaust baffle block through a condensing pipeline, and a first ball valve is arranged on the condensing pipeline. The design has the advantages of avoiding impurity reflux and absorbing materials.
Patent CN206048762U discloses an exhaust device for an extruder, in which two screws arranged side by side are arranged in an exhaust pipe. When the extruder runs, waste gas is pumped out and discharged through the exhaust pipeline, and the motor drives the first screw rod and the second screw rod to rotate, so that materials in the extruder charging barrel are pressed down, and the materials are prevented from being discharged along with the materials.
Patent CN204123650U discloses an extruder vacuum exhaust device for preventing material return, comprising a piston cylinder, a piston driving part, a vacuum pumping pipeline and the like. The piston cylinder is perpendicular to the cylinder direction of the extruder, and the piston driving part can drive the piston to do axial reciprocating motion along the piston cylinder. Through the up-and-down motion of the piston, the flow passage between the vacuumizing pipeline and the exhaust port of the machine barrel can be cut off, and the return of molten materials is effectively avoided.
Patent CN211542292U discloses a dynamic exhaust mechanism, which is provided with a reaction chamber and a fixed chamber, and a rotary column is rotatably installed in the fixed chamber. The filter plate can fully filter gas during exhausting and prevent the filter plate from being blocked.
Patent CN102700110a discloses a vacuum exhaust device for an extruder, which comprises a vacuum seat fixed at a vacuum exhaust port of the extruder, a vacuum exhaust port, a vacuumizing tube of a vacuum pump, and the like. Through the alternate action of the pressing device, the blocking materials in the vacuum seat can be cleaned on line.
In summary, the existing vacuum exhaust device patents are mainly aimed at improving the aspects of material overflow or material returning, convenient cleaning and the like of the vacuum exhaust device. At present, few or no technology is involved in the venting device of the extruder to solve the problem that volatile matters which are easy to condense and crystallize block a venting pipeline by improving the vacuum venting device process.
Disclosure of Invention
The utility model aims to provide an extruder vacuum exhaust device for preventing volatile matters which are easy to condense and crystallize from blocking an exhaust pipe, which is used for solving the problem that volatile organic compounds which are easy to condense and crystallize in a machine barrel easily cause pipeline blockage of the extruder vacuum exhaust device when the extruder is used for physically blending or chemically modifying synthetic resin, so that the extruder can stably run.
The technical scheme of the utility model is as follows: the utility model provides an extruder vacuum exhaust device for preventing easy condensation crystallization volatile from blocking up blast pipe, includes the barrel of extruder exhaust section, be connected with the exhaust baffle block on the barrel, the tip that the exhaust baffle block outwards extends the barrel is connected with the vacuum exhaust pullover that has the congeal liquid groove, be provided with the congeal liquid groove export on the exhaust cavity of vacuum exhaust pullover, congeal liquid groove export is connected with the oblique angle pipe that has the accuse temperature and press from both sides the cover, be provided with manometer and pressure control valve on the vertical ascending branch of oblique angle pipe, connect the congeal liquid collection tank on the vertical decurrent branch of oblique angle pipe, oblique decurrent other end of oblique angle pipe is connected with air exhaust device.
Further, the air extraction device comprises an air extraction pipe, the air extraction pipe is connected with the other end of the bevel pipe, which is inclined downwards, and the other end of the air extraction pipe is connected with a vacuum pump through a vacuum buffer tank.
Further, the bottom of the exhaust baffle block is provided with an M-shaped wave part with the radius the same as that of the inner wall of the machine barrel, a funnel-shaped exhaust channel is arranged in the exhaust baffle block, and one end of a small opening is connected with the machine barrel.
Further, the upper end of the exhaust baffle block is consistent with the size and the model of the vacuum exhaust sleeve head, and the contact surfaces are completely consistent.
Further, the condensate tank is an annular groove connected to the inner wall of the exhaust chamber of the vacuum exhaust sleeve head, and the lowest point of the condensate tank is connected with the lowest point of the inner diameter of one end of the bevel pipe obliquely upwards.
Further, a glass window is arranged at the upper end of the exhaust chamber of the vacuum exhaust sleeve head; and a filter screen is arranged at the outlets of the bevel pipe and the condensate tank.
Further, the mesh number of the filter screen is 50-100 meshes.
Further, the temperature control jacket is an external jacket with a heating function and a constant temperature function and is wrapped outside the bevel pipe.
Further, the bevel pipe can be made of stainless steel or plexiglass; and the bevel pipe is a multi-channel pipe with an included angle of 0-90 degrees with the horizontal angle.
Further, the vertical downward branch of the bevel pipe is connected with the condensate collecting tank through a ball valve.
Compared with the prior art, the utility model has the following advantages:
1. the device has the advantages of simple structure, convenient operation and the like. The device can be according to the fusing point of easy condensation crystallization volatile, the temperature of reasonable regulation diagonal pipe, when the extruder operation, use this exhaust apparatus can be high-efficient with the volatile organic compounds desorption of the easy condensation crystallization of remaining in the extruder barrel for easy condensation crystallization volatile is in the liquid state that easily flows before flowing through the collection tank, thereby realizes the high-efficient collection to it, avoids easy condensation volatile to block up the pipeline.
2. The method can prevent volatile components from flowing back into a machine barrel melt after condensation (mixed gas or impurities are prevented from flowing back into the machine barrel) to pollute the extrudate product, can effectively improve the purity of the final product, and can prevent materials of a vacuum exhaust device from overflowing, so that the extruder can still continuously run when a large amount of volatile components which are easy to condense and crystallize are used for physical blending or chemical modification of resin, and the working efficiency of the extruder is greatly improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a cross-sectional view of an exhaust block of the present utility model;
in the figure: 1. a barrel; 2. an exhaust baffle block; 2a, wave parts; 2b, an exhaust passage; 3. vacuum exhaust sleeve head; 3a, a condensate tank; 3b, an exhaust chamber; 4. a glass window; 5. a filter screen; 6. a temperature control jacket; 7. a bevel pipe; 8. a pressure gauge; 9. a pressure control valve; 10. a ball valve; 11. a condensate collection tank; 12. an exhaust pipe; 13. a vacuum buffer tank; 14. and a vacuum pump.
Detailed Description
In order to make the above features and advantages of the present utility model more comprehensible, embodiments accompanied with figures are described in detail below, but the present utility model is not limited thereto.
Referring to fig. 1 and 2
The utility model provides an extruder vacuum exhaust device for preventing easy condensation crystallization volatile from blocking up blast pipe, includes the barrel 1 of extruder exhaust section, be connected with exhaust baffle piece 2 on the barrel, the tip of exhaust baffle piece epitaxy barrel is connected with the vacuum exhaust pullover 3 that has condensation groove 3a, be provided with the condensation groove export on the exhaust cavity 3b of vacuum exhaust pullover, the condensation groove export is connected with the oblique angle pipe 7 that has accuse temperature and press from both sides cover 6, be provided with manometer 8 and pressure control valve 9 on the vertical ascending branch of oblique angle pipe, connect condensation collection tank 11 through ball valve 10 on the vertical decurrent branch of oblique angle pipe, the oblique decurrent other end of oblique angle pipe is connected with air exhaust device.
In this embodiment, the air extractor includes an air extracting tube 12 connected to the other end of the bevel tube, where the other end of the air extracting tube is connected to a vacuum pump 14 via a vacuum buffer tank 13.
In this embodiment, the bottom of the exhaust baffle block is provided with an "M" wave portion 2a with the same radius as the inner wall of the machine barrel, a funnel-shaped exhaust channel 2b is provided in the exhaust baffle block, and one end of the small opening is connected with the machine barrel. The material of the exhaust baffle block is consistent with the material of the machine barrel.
In this embodiment, the upper end of the exhaust baffle block is identical to the size and model of the vacuum exhaust sleeve head, and the contact surfaces are completely coincident. And the exhaust baffle block is provided with a flange part matched with the vacuum exhaust sleeve head.
In this embodiment, the condensate tank is an annular groove connected to the inner wall of the exhaust chamber of the vacuum exhaust sleeve head, and the lowest point of the condensate tank is connected to the lowest point of the inner diameter of one end of the bevel pipe, which is inclined upwards, so that the condensed liquid can enter the bevel pipe.
In this embodiment, the upper end of the exhaust chamber of the vacuum exhaust sleeve head is provided with a glass window 4, so that the environment in the exhaust chamber can be conveniently observed.
In this embodiment, in order to filter large particles, impurities, etc., a filter screen 5 is disposed at the outlet of the bevel pipe and the condensate tank, and the mesh number of the filter screen is 50-100 mesh.
In this embodiment, the temperature control jacket is an external jacket with a heating function and a constant temperature function, and is wrapped outside the bevel pipe, so that the internal environment temperature of the bevel pipe is always kept at 50-260 ℃.
In this embodiment, the bevel tube may be made of stainless steel or plexiglass; the bevel pipe is a multi-channel pipe with an included angle of 0-90 degrees with the horizontal angle, can be replaced according to requirements, and is not limited to three channels as shown in fig. 1.
In this embodiment, the effective range of the pressure gauge 8 is adapted to the range of pressure that can be generated by the vacuum pump 14.
In this embodiment, the ball valve 10 may be closed when the condensate tank 11 needs to be cleaned, without affecting the operation of the extruder.
In this embodiment, the model and parameters of the vacuum pump 14 are not limited, but can be changed according to actual production requirements.
After the vacuum pump 14 is started, the vacuum degree of the exhaust block 2 and the exhaust device sleeve head exhaust chamber is controlled by controlling the opening degree of the pressure control valve 9. When the extruder is in operation, gas in the melt in the machine barrel 1, volatile organic compound waste gas easy to condense and crystallize and the like enter a vacuum exhaust device from an exhaust channel of the exhaust baffle block 2 under the action of negative pressure. For volatile matters which are not easy to condense, the volatile matters can be directly discharged through an exhaust device; after leaving the extruder exhaust chamber, the volatile components that are prone to condensation and crystallization can condense into liquid in the condensate tank 3a near the glass window and then enter the bevel pipe 7. The temperature control jacket 6 is set according to the melting point of volatile matters easy to condense and crystallize, so that the volatile matters in the part are ensured to be in a liquid state, condensate enters the condensate collecting tank 11 through the bevel pipe 7, and the phenomenon that the condensate is condensed and crystallized in the bevel pipe or a subsequent pipeline to block the pipeline to cause the condensate of the volatile matters in the condensing tank 3 to flow back to the extruder is avoided, so that the extruder can continuously run, and the production efficiency of the extruder is greatly improved.
This exhaust apparatus can carry out temperature regulation according to the fusing point of the easy condensation crystallization volatile of key, ensures that easy condensation crystallization volatile is in liquid state before flowing through the collecting vessel, and the condensate gets into the collecting vessel under the action of gravity to realize the effective collection to easy condensation crystallization volatile, prevent to block up the vacuum pumping pipeline, improve the operating efficiency of extruder.
If the utility model discloses or relates to components or structures fixedly connected with each other, then unless otherwise stated, the fixed connection is understood as: detachably fixed connection (e.g. using bolts or screws) can also be understood as: the non-detachable fixed connection (e.g. riveting, welding), of course, the mutual fixed connection may also be replaced by an integral structure (e.g. integrally formed using a casting process) (except for obviously being unable to use an integral forming process).
In addition, terms used in any of the above-described aspects of the present disclosure to express positional relationship or shape have meanings including a state or shape similar to, similar to or approaching thereto unless otherwise stated.
Any part provided by the utility model can be assembled by a plurality of independent components, or can be manufactured by an integral forming process.
The foregoing description is only of the preferred embodiments of the utility model, and all changes and modifications that come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (10)
1. The utility model provides an prevent extruder vacuum exhaust device of easy condensation crystallization volatile blocking blast pipe, includes the barrel of extruder exhaust section, its characterized in that is connected with the exhaust baffle piece on the barrel, the tip of exhaust baffle piece epitaxial barrel is connected with the vacuum exhaust pullover that has the congeal liquid groove, be provided with the congeal liquid groove export on the exhaust cavity of vacuum exhaust pullover, congeal liquid groove export is connected with the oblique angle pipe that has the accuse temperature and press from both sides the cover, be provided with manometer and pressure control valve on the vertical ascending branch of oblique angle pipe, connect the congeal liquid collection tank on the vertical decurrent branch of oblique angle pipe, oblique decurrent other end of oblique angle pipe is connected with air extractor.
2. The apparatus according to claim 1, wherein the air extractor comprises an air extracting tube connected to the other end of the bevel tube in a downward direction, and the other end of the air extracting tube is connected to the vacuum pump via a vacuum buffer tank.
3. The vacuum exhaust device for the extruder for preventing volatile matters from being condensed and crystallized from blocking an exhaust pipe according to claim 1 or 2, wherein an M-shaped wavy part with the same radius as the inner wall of the machine barrel is arranged at the bottom of the exhaust baffle block, a funnel-shaped exhaust channel is arranged in the exhaust baffle block, and one end of a small opening is connected with the machine barrel.
4. The vacuum exhaust device for an extruder for preventing plugging of an exhaust pipe by volatile matters easy to condense and crystallize according to claim 1 or 2, wherein the upper end of the exhaust baffle block is identical to the size of the vacuum exhaust sleeve head, and the contact surfaces are completely coincident.
5. The vacuum exhaust device for the extruder for preventing volatile matters from being easily condensed and crystallized from blocking an exhaust pipe according to claim 1, wherein the condensate tank is an annular groove connected to the inner wall of the exhaust chamber of the vacuum exhaust sleeve head, and the lowest point of the condensate tank is connected with the lowest point of the inner diameter of one end of the bevel pipe obliquely upwards.
6. The vacuum exhaust device for an extruder for preventing volatile matters from being easily condensed and crystallized from blocking an exhaust pipe according to claim 1, 2 or 5, wherein a glass window is arranged at the upper end of an exhaust chamber of the vacuum exhaust sleeve head; and a filter screen is arranged at the outlets of the bevel pipe and the condensate tank.
7. The vacuum exhaust device for an extruder for preventing plugging of an exhaust pipe by volatile matters crystallized easily condensed according to claim 6, wherein the mesh number of said filter net is 50-100 mesh.
8. The vacuum exhaust device of the extruder for preventing volatile matters from being blocked by the exhaust pipe due to easy condensation and crystallization according to claim 1, wherein the temperature control jacket is an external jacket with a heating function and a constant temperature function and is wrapped outside the bevel pipe.
9. The vacuum exhaust device for an extruder for preventing volatile matters from being easily condensed and crystallized from blocking an exhaust pipe according to claim 1, 2, 5, 7 or 8, wherein the bevel pipe is made of stainless steel or plexiglass; and the bevel pipe is a multi-channel pipe with an included angle of 0-90 degrees with the horizontal angle.
10. The apparatus of claim 1, 2, 5, 7 or 8, wherein the vertical downward branch of the bevel pipe is connected to the condensate collection tank via a ball valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320001805.2U CN219600347U (en) | 2023-01-03 | 2023-01-03 | Extruder vacuum exhaust device for preventing volatile matters easy to condense and crystallize from blocking exhaust pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320001805.2U CN219600347U (en) | 2023-01-03 | 2023-01-03 | Extruder vacuum exhaust device for preventing volatile matters easy to condense and crystallize from blocking exhaust pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219600347U true CN219600347U (en) | 2023-08-29 |
Family
ID=87754194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320001805.2U Active CN219600347U (en) | 2023-01-03 | 2023-01-03 | Extruder vacuum exhaust device for preventing volatile matters easy to condense and crystallize from blocking exhaust pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219600347U (en) |
-
2023
- 2023-01-03 CN CN202320001805.2U patent/CN219600347U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN219600347U (en) | Extruder vacuum exhaust device for preventing volatile matters easy to condense and crystallize from blocking exhaust pipe | |
| CN110370551A (en) | Mold is used in a kind of production of mechanical fitting | |
| CN114984618A (en) | Raw material extraction device and method for wine making processing | |
| CN214232787U (en) | Energy-concerving and environment-protective lubricating oil production purification equipment | |
| CN103213262A (en) | Screw extruder with air purifying function | |
| CN209459413U (en) | A kind of Metal Melting device convenient for dedusting | |
| CN209504847U (en) | A kind of pvc pipe extruder | |
| CN209616314U (en) | Sectional material extruder sizing platform | |
| CN207842026U (en) | A kind of single screw extrusion machine | |
| CN209552416U (en) | Material extruder is used in a kind of production of optical cable | |
| CN209188412U (en) | A kind of environment-friendly type centrifugal dust collection device for antioxidant production | |
| CN208827022U (en) | A kind of Universal type radiator water chamber processing mold | |
| CN219073890U (en) | Waste recycling device for candle production | |
| CN209260177U (en) | A kind of zinc residue produced in hot zinc plating strainer | |
| CN207290404U (en) | A kind of geo-polymer extrusion equipment | |
| CN208866864U (en) | A kind of gear-hobbing machine waste treatment device | |
| CN217454850U (en) | Material return prevention vacuumizing device | |
| CN207195114U (en) | A kind of petroleum coke closed conveying machine | |
| CN206780969U (en) | A kind of plastic extruder reverse-filling vacuum extractor | |
| CN210145582U (en) | Pulp residue refiltering device | |
| CN109202034A (en) | A kind of gas-filtering device and evacuated die-casting process device | |
| CN217144818U (en) | Cleaning device of double-screw granulator vacuum pumping system | |
| CN114194833B (en) | Vacuum feeding system for sea sedge puffed food production | |
| CN211566898U (en) | Lateral exhaust chamber | |
| CN217553221U (en) | Powder press with material collecting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |