CN217098848U - Environment-friendly vacuum pumping exhaust system for extruder - Google Patents
Environment-friendly vacuum pumping exhaust system for extruder Download PDFInfo
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- CN217098848U CN217098848U CN202220056795.8U CN202220056795U CN217098848U CN 217098848 U CN217098848 U CN 217098848U CN 202220056795 U CN202220056795 U CN 202220056795U CN 217098848 U CN217098848 U CN 217098848U
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Abstract
The utility model relates to the technical field of extruder exhaust, in particular to an environment-friendly vacuumizing exhaust system for an extruder, which comprises an exhaust vacuum tank, a water ring vacuum pump and a water-gas separator which are sequentially connected through an exhaust pipeline according to the direction of gas exhaust, wherein the exhaust vacuum tank comprises a tank body, a particulate blocking assembly arranged in the tank body and a condensed gas injection assembly arranged on the tank wall of the tank body and communicated with the interior of the tank body; the particle interception component comprises a middle connecting rod vertically arranged in the middle of the inner part of the tank body and a plurality of condensation baffles which are sequentially and horizontally connected to the middle connecting rod at intervals from top to bottom; and the tank wall of the tank body is also respectively provided with an exhaust gas inlet for receiving high-temperature exhaust gas on the extruder and an exhaust gas outlet for connecting the water ring vacuum pump through the exhaust pipeline. The utility model discloses reduce exhaust gas's impurity concentration, improved water ring vacuum pump's life.
Description
Technical Field
The utility model relates to an extruder exhaust technical field, concretely relates to environment-friendly evacuation exhaust system for extruder.
Background
A screw extruder is a plastic molding apparatus for heating and melting a solid polymer material and shaping the solid polymer material by pushing the molten material into a specific mold by means of the extrusion action of a screw. The screw extruder is mainly used for extruding soft and hard polyvinyl chloride, polyethylene and other thermoplastic plastics, can process various plastic products such as blown film, extruded tube, press plate, wire drawing belt and the like, and can also be used for melt granulation. In the process of extrusion molding of plastics, high-temperature gas generated by materials in a molten state needs to be discharged to improve the quality of extrusion molded plastic products, so a corresponding gas discharge device is generally required to be arranged on a screw extruder.
Among the prior art, screw extruder's exhaust apparatus adopts water ring vacuum pump usually, utilizes water ring vacuum pump's negative pressure suction effect to discharge the high-temperature gas of extruder during operation, and its not enough that exists is: the high-temperature gas generated after the polymer solid material is melted at high temperature not only contains air and moisture, but also decomposes volatile oligomer and other impurities, so that the water used by the water ring vacuum pump is easily polluted when the high-temperature gas enters the water ring vacuum pump, and the service life of the water ring vacuum pump is shortened.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides an environment-friendly evacuation exhaust system for extruder aims at reducing exhaust gas's impurity concentration, improves water ring vacuum pump's life. The specific technical scheme is as follows:
an environment-friendly vacuumizing exhaust system for an extruder comprises an exhaust vacuum tank, a water ring vacuum pump and a water-gas separator which are sequentially connected through an exhaust pipeline according to the direction of gas exhaust, wherein the exhaust vacuum tank comprises a tank body, a particulate matter intercepting component arranged in the tank body, and a condensed gas injection component arranged on the tank wall of the tank body and communicated with the interior of the tank body; the particle interception component comprises a middle connecting rod vertically arranged in the middle of the inner part of the tank body and a plurality of condensation baffles which are sequentially and horizontally connected to the middle connecting rod at intervals from top to bottom; and the tank wall of the tank body is also respectively provided with an exhaust gas inlet for receiving high-temperature exhaust gas on the extruder and an exhaust gas outlet for connecting the water ring vacuum pump through the exhaust pipeline.
Preferably, the condensed gas injection assembly comprises a plurality of condensed gas nozzles, and the plurality of condensed gas nozzles are distributed along the circumferential direction and the up-down direction of the tank wall of the tank body at intervals.
The utility model discloses in, the condensation gas shower nozzle passes through condensation gas tube coupling compressed air source.
Preferably, the exhaust air inlet is positioned at the left side of the upper part of the tank body, and the exhaust air outlet is positioned at the right side of the lower part of the tank body;
preferably, one of the two adjacent condensation baffles is arranged to the left relative to the middle connecting rod, and the other condensation baffle is arranged to the right relative to the middle connecting rod.
The left and right offset arrangement of the upper and lower adjacent condensation baffles can form a labyrinth type exhaust passage in the tank body of the exhaust vacuum tank, so that the condensation effect on high-temperature gas is further enhanced.
In order to facilitate cleaning and maintenance of the particulate matter interception component, a detachable tank cover is arranged at an upper port of the tank body, and a handle which is convenient for the particulate matter interception component to be integrally pulled upwards is arranged at the upper end of an intermediate connecting rod of the particulate matter interception component.
Wherein, be close to on the condensation baffle the one end of jar internal wall still is provided with conveniently dodge when particulate matter interception subassembly upwards pulls out the breach of dodging of condensation gas shower nozzle.
The utility model discloses in, the lower part of the jar body is provided with blowdown clearance mouth, be provided with detachable blowdown clearance apron on the blowdown clearance mouth.
In the utility model, a one-way valve is arranged on the exhaust pipeline between the exhaust vacuum tank and the water ring vacuum pump; and a pressure gauge and an air supply regulating valve are respectively connected on the exhaust pipeline between the exhaust vacuum tank and the one-way valve.
The utility model discloses in, be connected with the water intake pipe on the water ring vacuum pump, be provided with water regulating valve, inlet solenoid valve and flow switch on the water intake pipe.
The flow switch is arranged on the water inlet pipeline, so that the control and the regulation of the flow on the water inlet pipeline are facilitated.
The utility model discloses a theory of operation is: high-temperature gas from an extruder firstly enters an exhaust vacuum tank, impurities such as oligomer in the high-temperature gas are intercepted under the combined action of a condensed gas injection assembly and a particulate matter intercepting assembly on the exhaust vacuum tank, the concentration of the impurities in the gas is greatly reduced, and then the gas is pumped to a water-gas separator by a water ring vacuum pump and is exhausted after water is separated out.
The utility model has the advantages that:
first, the utility model discloses an environment-friendly evacuation exhaust system for extruder has set up the exhaust vacuum jar of special construction between extruder and water ring vacuum pump, and it has particulate matter interception subassembly to embed in the exhaust vacuum jar, and the high-temperature gas who comes from the extruder gets into the exhaust vacuum jar earlier and carries out the interception of pollutant and handle, and rethread water ring vacuum pump discharges, and the gaseous impurity concentration of exhaust that has significantly reduced from this has avoided the pollution to the water ring vacuum pump water, has improved the life of vacuum pump.
Second, the utility model discloses an environment-friendly evacuation exhaust system for extruder, condensation gas shower nozzle can spray condensation air with the dispersion form along the jar body circumference evenly distributed of exhaust vacuum jar, cools off rapidly the high-temperature gas that gets into in the exhaust vacuum jar, makes impurity and oligomer in the gas separate out and subsides and glutinous on the condensation plate, through the mutual synergism of condensation gas injection subassembly and particulate matter interception subassembly and further improved the interception effect of pollutant.
Third, the utility model discloses an environment-friendly evacuation exhaust system for extruder, through about two adjacent condensation baffles the biasing setting, can be at the internal labyrinth exhaust passage that forms of jar of exhaust vacuum jar to further reinforcing is to high-temperature gas's condensation effect.
Fourth, the utility model discloses an exhaust system is pumped in vacuum to environment-friendly for extruder, particulate matter interception subassembly accessible handle are cleared up after up pulling out, and its maintainability is good.
Drawings
FIG. 1 is a schematic structural view of an environment-friendly vacuum-pumping exhaust system for an extruder according to the present invention;
fig. 2 is a schematic view of the structure of the exhaust vacuum tank in fig. 1.
In the figure: 1. the device comprises an exhaust vacuum tank, 2, a water ring vacuum pump, 3, a water-gas separator, 4, a tank body, 5, a particulate matter intercepting component, 6, a condensed gas injection component, 7, an intermediate connecting rod, 8, a condensation baffle, 9, an exhaust gas inlet, 10, an exhaust gas outlet, 11, a condensed gas nozzle, 12, a tank cover, 13, a handle, 14, an avoidance notch, 15, a pollution discharge cleaning port, 16, a pollution discharge cleaning cover plate, 17, a one-way valve, 18, a pressure gauge, 19, an air supply adjusting valve, 20, a water quantity adjusting valve, 21, a water inlet electromagnetic valve, 22 and a flow switch.
Detailed Description
The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Fig. 1 to 2 show an embodiment of an environment-friendly vacuum pumping system for an extruder, comprising an exhaust vacuum tank 1, a water ring vacuum pump 2 and a moisture separator 3 sequentially connected through an exhaust pipeline according to a gas exhaust direction, wherein the exhaust vacuum tank 1 comprises a tank body 4, a particulate blocking component 5 arranged in the tank body 4, and a condensed gas injection component 6 arranged on a tank wall of the tank body 4 and communicated with the inside of the tank body 4; the particle intercepting component 5 comprises a middle connecting rod 7 vertically arranged in the middle of the inside of the tank body 4 and a plurality of condensation baffles 8 which are sequentially and horizontally connected to the middle connecting rod 7 at intervals from top to bottom; and the wall of the tank body 4 is also provided with an exhaust gas inlet 9 for receiving high-temperature exhaust gas on the extruder and an exhaust gas outlet 10 for connecting the water ring vacuum pump 2 through the exhaust pipeline.
Preferably, the condensed gas injection assembly 6 comprises a plurality of condensed gas injection nozzles 11, and the plurality of condensed gas injection nozzles 11 are distributed at intervals along the circumferential direction and the up-down direction of the tank wall of the tank 4.
In this embodiment, the condensed gas nozzle 11 is connected to a compressed air source through a condensed gas pipeline.
Preferably, the exhaust air inlet 9 is located at the left side position of the upper part of the tank 4, and the exhaust air outlet 10 is located at the right side position of the lower part of the tank 4;
preferably, one condensation baffle 8 of two adjacent condensation baffles 8 is arranged to the left of the middle connecting rod 7, and the other condensation baffle 8 is arranged to the right of the middle connecting rod 7.
The left and right offset arrangement of the two condensation baffles 8 adjacent up and down can form a labyrinth type exhaust passage in the tank body of the exhaust vacuum tank 1, so that the condensation effect on high-temperature gas is further enhanced.
In order to facilitate cleaning and maintenance of the particulate matter intercepting component 5, a detachable tank cover 12 is arranged at an upper port of the tank body 4, and a handle 13 which facilitates upward pulling of the particulate matter intercepting component 5 as a whole is arranged at the upper end of the middle connecting rod 7 of the particulate matter intercepting component 5.
Wherein, be close to on the condensation baffle 8 the one end of the inner wall of jar body 4 still is provided with conveniently when particulate matter interception subassembly 5 upwards pulls out give way dodge breach 14 of condensation gas shower nozzle 11.
In this embodiment, the lower part of the tank 4 is provided with a pollution discharge cleaning port 15, and the pollution discharge cleaning port 5 is provided with a detachable pollution discharge cleaning cover plate 16.
In this embodiment, a check valve 17 is provided on the exhaust line between the exhaust vacuum tank 1 and the water ring vacuum pump 2; and a pressure gauge 18 and an air supply adjusting valve 19 are respectively connected on the air exhaust pipeline between the exhaust vacuum tank 1 and the one-way valve 17.
In this embodiment, the water ring vacuum pump 2 is connected with a water inlet pipeline, and the water inlet pipeline is provided with a water quantity regulating valve 20, a water inlet electromagnetic valve 21 and a flow switch 22.
The flow switch 22 is arranged on the water inlet pipeline, so that the control and the regulation of the flow on the water inlet pipeline are facilitated.
The working principle of the embodiment is as follows: high-temperature gas from an extruder firstly enters an exhaust vacuum tank 1, impurities such as oligomer in the high-temperature gas are intercepted under the combined action of a condensed gas injection assembly 6 and a particulate matter interception assembly 5 on the exhaust vacuum tank 1, the concentration of the impurities in the gas is greatly reduced, and then the high-temperature gas is pumped to a water-gas separator 3 by a water ring vacuum pump 2 and is exhausted after water is separated.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. An environment-friendly vacuumizing exhaust system for an extruder is characterized by comprising an exhaust vacuum tank, a water ring vacuum pump and a water-gas separator which are sequentially connected through an exhaust pipeline according to the direction of gas exhaust, wherein the exhaust vacuum tank comprises a tank body, a particulate matter intercepting component arranged in the tank body, and a condensed gas injection component arranged on the tank wall of the tank body and communicated with the interior of the tank body; the particle interception component comprises a middle connecting rod vertically arranged in the middle of the inner part of the tank body and a plurality of condensation baffles which are sequentially and horizontally connected to the middle connecting rod at intervals from top to bottom; and the tank wall of the tank body is also respectively provided with an exhaust gas inlet for receiving high-temperature exhaust gas on the extruder and an exhaust gas outlet for connecting the water ring vacuum pump through the exhaust pipeline.
2. The environment-friendly vacuum pumping and exhausting system for the extruder as claimed in claim 1, wherein the condensed gas injection assembly comprises a plurality of condensed gas nozzles, and the plurality of condensed gas nozzles are distributed and distributed at intervals along the circumferential direction and the up-down direction of the tank wall of the tank body.
3. The environment-friendly vacuumizing system for extruders according to claim 2, wherein the condensation gas nozzle is connected to a compressed air source through a condensation gas pipeline.
4. The environment-friendly vacuum pumping system for the extruder as claimed in claim 2, wherein the exhaust air inlet is located at the left side of the upper part of the tank body, and the exhaust air outlet is located at the right side of the lower part of the tank body.
5. The environment-friendly vacuum pumping system for the extruder as claimed in claim 4, wherein one of the two adjacent condensation baffles is disposed to the left of the middle connecting rod, and the other condensation baffle is disposed to the right of the middle connecting rod.
6. The environment-friendly vacuumizing and exhausting system for the extruder as claimed in claim 5, wherein a detachable can cover is provided at an upper port of the can body, and a handle facilitating the upward pulling of the particulate matter intercepting component as a whole is provided at an upper end of an intermediate connecting rod of the particulate matter intercepting component.
7. The environment-friendly vacuum pumping and exhausting system for the extruder as claimed in claim 6, wherein an avoiding notch is further provided at one end of the condensation baffle close to the inner wall of the tank body for facilitating the opening of the condensed gas nozzle when the particulate blocking component is pulled out upwards.
8. The environment-friendly vacuumizing system for the extruder as claimed in claim 1, wherein a blowdown cleaning port is formed at the lower part of the tank body, and a detachable blowdown cleaning cover plate is arranged on the blowdown cleaning port.
9. The environment-friendly vacuum pumping and exhausting system for the extruder as claimed in claim 1, wherein a check valve is arranged on the exhaust pipeline between the exhaust vacuum tank and the water ring vacuum pump; and a pressure gauge and an air supply regulating valve are respectively connected on the exhaust pipeline between the exhaust vacuum tank and the one-way valve.
10. The environment-friendly vacuumizing system for extruders of claim 9, wherein the water ring vacuum pump is connected with a water inlet pipeline, and the water inlet pipeline is provided with a water quantity regulating valve, a water inlet electromagnetic valve and a flow switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220056795.8U CN217098848U (en) | 2022-01-11 | 2022-01-11 | Environment-friendly vacuum pumping exhaust system for extruder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220056795.8U CN217098848U (en) | 2022-01-11 | 2022-01-11 | Environment-friendly vacuum pumping exhaust system for extruder |
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| CN217098848U true CN217098848U (en) | 2022-08-02 |
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| CN202220056795.8U Active CN217098848U (en) | 2022-01-11 | 2022-01-11 | Environment-friendly vacuum pumping exhaust system for extruder |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115898517A (en) * | 2023-01-06 | 2023-04-04 | 淄博水环真空泵厂有限公司 | High negative pressure water conservation colliery gas drainage system |
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2022
- 2022-01-11 CN CN202220056795.8U patent/CN217098848U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115898517A (en) * | 2023-01-06 | 2023-04-04 | 淄博水环真空泵厂有限公司 | High negative pressure water conservation colliery gas drainage system |
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