CN207465825U - Double screw extruder - Google Patents
Double screw extruder Download PDFInfo
- Publication number
- CN207465825U CN207465825U CN201721580453.1U CN201721580453U CN207465825U CN 207465825 U CN207465825 U CN 207465825U CN 201721580453 U CN201721580453 U CN 201721580453U CN 207465825 U CN207465825 U CN 207465825U
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- CN
- China
- Prior art keywords
- vacuum pump
- double screw
- screw extruder
- collecting tank
- vacuum
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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.)
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses the double screw extruders that a kind of achievable vacuum pump sealing fluid recycles, including double screw extruder ontology, the double screw extruder ontology connects successively with vacuum tank, vacuum pump, further include the collecting tank with vacuum pump diconnected, moisture separator and cooling structure are equipped in collecting tank, flue gas leading is connected on collecting tank.The utility model carries out aqueous vapor separation by collecting tank to the elevated-temperature seal liquid that vacuum pump is discharged, discarded discharge, liquid cools down by heat exchange pipe network, send back to vacuum pump after being filtered by strainer again to be recycled, the vacuum degree of vacuum pump seal generation will not be changed simultaneously, it can guarantee the negative pressure requirements of double screw extruder granulation process, sealing fluid, which recycles, can largely reduce wastewater disposition, and production cost and pollution treatment cost are all greatly reduced.
Description
Technical field
The utility model is related to a kind of double screw extruders.
Background technology
When double screw extruder is granulated using plastic raw materials, due to organic containing moisture and volatility in plastic raw materials
Object, if not discharging moisture and volatile organic matter can impact the appearance and performance of plastic product, twin-screw when being granulated
Extruder generally by force separated moisture and volatile organic matter using external force by vacuumizing, and improves product successively
Quality.It vacuumizes mostly using vacuum pump, in vacuum, the high-temperature gas from double screw extruder is mixed with sealing fluid
Discharge vacuum pump together afterwards, sealing fluid temperature drastically increases in mixed process, and part volatile organic matter mixes shape with sealing fluid
Into emulsion, the emulsus fluid viscosity is high, smell is big and is difficult to handle.Existing double screw extruder cannot be to vacuum pump used
Sealing fluid recycled, but be directly discharged into Sewage Disposal, cost for wastewater treatment is higher.
Utility model content
Technical problem to be solved in the utility model is：Pair that a kind of achievable vacuum pump sealing fluid recycles is provided
Screw extruder.
Technical solution is used by the utility model to solve above-mentioned technical problem：Double screw extruder, including double spiral shells
Bar extruder ontology, the double screw extruder ontology connect successively with vacuum tank, vacuum pump, further include and the two-way company of vacuum pump
Logical collecting tank, collecting tank is interior to be equipped with moisture separator and cooling structure, and flue gas leading is connected on collecting tank.
It is further：Strainer is additionally provided in the collecting tank, strainer is between cooling structure and vacuum pump.
It is further：The cooling structure is heat exchange pipe network, and heat exchange pipe network connects water-cooling tower.
It is further：The vacuum pump passes through vacuum pump discharges pipe, vacuum pump inlet tube and collecting tank diconnected.
It is further：The vacuum pump is water ring vacuum pump.
It is further：The heat exchange pipe network is stainless steel coiled pipe net.
It is further：The aperture of the strainer is 1.0mm~1.5mm.
The beneficial effects of the utility model are：The utility model by collecting tank to the elevated-temperature seal liquid that vacuum pump is discharged into
Row aqueous vapor detaches, and discards discharge, and liquid cools down, then send back to vacuum pump after being filtered by strainer by heat exchange pipe network
It is recycled, while the vacuum degree of vacuum pump seal generation will not be changed, can guarantee double screw extruder granulation process
Negative pressure requirements, sealing fluid, which recycles, can largely reduce wastewater disposition, and production cost and pollution treatment cost are all greatly reduced.
Description of the drawings
Fig. 1 is the schematic diagram of the utility model；
In figure label for：1- double screw extruders ontology, 2- vacuum tanks, 3- vacuum pumps, 4- collecting tanks, the separation of 41- aqueous vapors
Device, 42- strainers, 43- heat exchange pipe network, 5- flue gas leadings, 6- water-cooling towers, 7- vacuum pump discharges pipe, 8- vacuum pump inlet tubes.
Specific embodiment
For the ease of understanding the utility model, the utility model is further detailed below in conjunction with the accompanying drawings.
As shown in Figure 1, the utility model recycles for the sealing fluid discharged to vacuum pump 3, in twin-screw
On the basis of double screw extruder ontology 1, vacuum tank 2 and vacuum pump 3 that extruder includes, increase for 3 institute of vacuum pump
The collecting tank 4 that the high-temperature gas of discharge and the mixture of sealing fluid are handled is equipped with moisture separator 41, water in collecting tank 4
Gas separating device 41 can will be detached by mixture of the vacuum pump discharges pipe 7 from 3 dispatch of vacuum pump, and that isolates is discarded from even
The flue gas leading 5 led on collecting tank 4 is discharged, and is dropped in the cooling structure that the liquid mixture isolated enters in collecting tank 4
Recyclable sealing fluid is obtained by filtration through filter screen 42 after cooling in temperature, and sealing fluid is stored in the liquid storage in 4 left side of collecting tank
Qu Zhong, when vacuum pump 3 works, the sealing fluid after filtering is directly sucked and is recycled from vacuum pump inlet tube 8 by vacuum pump 3
It utilizes, so as to greatly save production cost, it is not required that carry out sewage disposal, saved the expense of sewage disposal.
In order to further save production cost in the utility model, cooling structure also selects recyclable clear water conduct
Heat transferring medium, cooling structure are made of heat exchange pipe network 43, and heat exchange pipe network 43 connects water-cooling tower 6, and clear water is in heat exchange pipe network 43 and water
It is circulated between cold tower 6, when sealing liquid mixture enters cooling structure, the clear water and the sealing liquid mixture that exchange heat in pipe network 43
Heat exchange is carried out, is cooled down to sealing liquid mixture, then takes away in the clear water inflow water-cooling tower 6 of heat and cools down, after cooling
Heat exchange next time is carried out in inflowization hot pipe network 43 again, is worked by the cycle heat exchange of this cooling structure, by further
Reduce production cost.
Wherein, vacuum pump 3 selects vacuum pump；The pipe network 43 that exchanges heat selects stainless steel coiled pipe net.
The granularity of the sundries filtered according to needed for sealing fluid, the pore diameter range of strainer 42 are set as 1.0mm~1.5mm.
Claims (7)
1. double screw extruder, including double screw extruder ontology (1), the double screw extruder ontology (1) successively with vacuum
Tank (2), vacuum pump (3) connection, it is characterised in that：It further includes and the collecting tank (4) of vacuum pump (3) diconnected, collecting tank (4)
It is interior to be equipped with moisture separator (41) and cooling structure, connect flue gas leading (5) on collecting tank (4).
2. double screw extruder as described in claim 1, it is characterised in that：Strainer (42) is additionally provided in the collecting tank (4),
Strainer (42) is between cooling structure and vacuum pump (3).
3. double screw extruder as claimed in claim 1 or 2, it is characterised in that：The cooling structure is heat exchange pipe network (43),
The pipe network (43) that exchanges heat connects water-cooling tower (6).
4. double screw extruder as described in claim 1, it is characterised in that：The vacuum pump (3) passes through vacuum pump discharges pipe
(7), vacuum pump inlet tube (8) and collecting tank (4) diconnected.
5. double screw extruder as claimed in claim 4, it is characterised in that：The vacuum pump (3) is water ring vacuum pump.
6. double screw extruder as claimed in claim 3, it is characterised in that：The heat exchange pipe network (43) is stainless steel coiled pipe
Net.
7. double screw extruder as claimed in claim 2, it is characterised in that：The aperture of the strainer (42) for 1.0mm~
1.5mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721580453.1U CN207465825U (en) | 2017-11-23 | 2017-11-23 | Double screw extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721580453.1U CN207465825U (en) | 2017-11-23 | 2017-11-23 | Double screw extruder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207465825U true CN207465825U (en) | 2018-06-08 |
Family
ID=62259259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721580453.1U Active CN207465825U (en) | 2017-11-23 | 2017-11-23 | Double screw extruder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207465825U (en) |
-
2017
- 2017-11-23 CN CN201721580453.1U patent/CN207465825U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 610400 energy saving Avenue, huaikou Town, Jintang County, Chengdu, Sichuan 1 Patentee after: Sichuan Changhong green environmental protection Polytron Technologies Inc Address before: 610400 Sichuan Chengdu Jintang County huaikou town Sichuan Jintang Industrial Park Sichuan Changhong grid renewable resources limited liability company Patentee before: Sichuan Changhong Gerun Regeneration Resource Co., Ltd. |
|
| CP03 | Change of name, title or address |