CN202225418U - Vacuum device for double-screw extruder - Google Patents
Vacuum device for double-screw extruder Download PDFInfo
- Publication number
- CN202225418U CN202225418U CN2011203387412U CN201120338741U CN202225418U CN 202225418 U CN202225418 U CN 202225418U CN 2011203387412 U CN2011203387412 U CN 2011203387412U CN 201120338741 U CN201120338741 U CN 201120338741U CN 202225418 U CN202225418 U CN 202225418U
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- CN
- China
- Prior art keywords
- surge tank
- vacuum
- screw extruder
- double screw
- vacuum pipe
- 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.)
- Expired - Fee Related
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses a vacuum device for a double-screw extruder, which comprises the double-screw extruder (1). The double-screw extruder (1) is provided with an exhaust port (2) which is respectively connected with a first buffer tank (51) and a second buffer tank (52) through vacuum pipelines (4), the first buffer tank (51) and the second buffer tank (52) are respectively communicated with a vacuum pump (7) through the vacuum pipelines (4) arranged outside the first buffer tank and the second buffer tank, and the vacuum pipelines (4) are provided with pipeline switching valves (11). By the aid of the two buffer tanks and the pipeline switching valves which are additionally mounted on the vacuum pipelines and used for switching the two buffer tanks, quality reduction of products during cleaning of the buffer tanks is avoided. The vacuum device for the double-screw extruder has the advantages of simple structure, low manufacturing cost, evident economic benefits and suitability for popularization and use, and stability and continuity of production are guaranteed.
Description
Technical field
The utility model relates to a kind of vacuum plant, specifically a kind of vacuum plant that is used for double screw extruder that can keep continuous and stable production.
Background technology
Double screw extruder is a key equipment in the production of polyethylene separator, its mixing of materials of will filling a prescription, and fusion is carried.In fusion, course of conveying, can produce some gaseous volatilization things; If these gaseous volatilization things are followed material and are arrived die head; Then cause polyethylene separator to produce the appearance of hole even roll banding phenomenon easily; And because material must keep vacuum mode in process of production, therefore vacuum plant must be set on double screw extruder these gaseous volatilization things are extracted out.Be pumped to vavuum pump owing in the vacuum drawn process, have a small amount of material chip with the gaseous volatilization thing in addition; If the exhaust outlet of double screw extruder is directly linked to each other with vavuum pump then can cause that vavuum pump stops up; Therefore existing vacuum plant generally installs a surge tank additional between the exhaust outlet of vavuum pump and double screw extruder; And on the side of surge tank, filter screen is installed, so then solved the vavuum pump blocking problem.
The existing vacuum plant that is used for double screw extruder is as shown in Figure 1; Can know by Fig. 1; Double screw extruder 1 is provided with exhaust outlet 2; Exhaust outlet 2 links to each other with surge tank 5 through the vacuum pipe 4 that is provided with vacuum meter 3, and the side of surge tank 5 is provided with filter screen 6, and filter screen 6 places on the surge tank 5 link to each other with vavuum pump 7 through vacuum pipe 4; Be provided with sewage draining exit 8 in the bottom of surge tank 5 in addition, sewage draining exit 8 places are provided with blow-off pipe 9, and blow-off pipe 9 is provided with blowoff valve 10.This kind vacuum plant has solved the problem that vavuum pump 7 blocks up preferably; But because the production of polyethylene separator is successional, in general, the impurity that continues production vavuum pumps 7 extractions in about 12 hours will be full of surge tank 5; Must clean out surge tank 5 this moment; And in the scale removal process of surge tank 5, till vavuum pump 7 must out of servicely come into operation to surge tank 5 again, the vavuum pump 7 polyethylene separator qualities that cause this section to be produced in the period out of service descended.
Summary of the invention
The purpose of the utility model is the defective to prior art, and a kind of vacuum plant that the polyethylene separator quantity-produced is used for double screw extruder that carries out is provided.
The purpose of the utility model solves through following technical scheme:
A kind of vacuum plant that is used for double screw extruder; Comprise double screw extruder; Double screw extruder is provided with exhaust outlet; Described exhaust outlet links to each other with second surge tank with first surge tank through vacuum pipe respectively, and described first surge tank and second surge tank are connected with vavuum pump through the vacuum pipe of its arranged outside respectively; Described vacuum pipe is provided with the pipeline transfer valve.
Vacuum pipe between said first surge tank and the exhaust outlet is provided with the pipeline transfer valve.
Vacuum pipe between said second surge tank and the exhaust outlet is provided with the pipeline transfer valve.
Vacuum pipe between described first surge tank or second surge tank and the exhaust outlet is provided with vacuum meter.
Be respectively equipped with filter screen on the side of said first surge tank and second surge tank, described filter screen is positioned at link to each other with second surge tank endface position place of an end of vacuum pipe and first surge tank or vacuum pipe.
Vacuum pipe between described first surge tank and second surge tank and the vavuum pump is made up of first arm, second arm and the person in charge; Described first surge tank is communicated with vavuum pump through first arm and the person in charge successively, and described second surge tank is communicated with vavuum pump through second arm and the person in charge successively.
The pipeline transfer valve that is provided with on the vacuum pipe between said first surge tank and the vavuum pump is positioned on first arm.
The pipeline transfer valve that is provided with on the vacuum pipe between said second surge tank and the vavuum pump is positioned on second arm.
The bottom of said first surge tank and second surge tank is respectively equipped with sewage draining exit, and described sewage draining exit is provided with blow-off pipe, and blow-off pipe is provided with blowoff valve.
The utility model is compared prior art has following advantage:
The utility model switches different surge tanks through disposing two surge tanks and on vacuum pipe, installing the pipeline transfer valve additional; The phenomenon that the product quality that has caused when having avoided the cleaning surge tank descends makes polyethylene separator reach continuous, stable lasting production.
Simple in structure, the low cost of manufacture of the utility model can guarantee the continuation of production to have tangible economic benefit, suitable promoting the use of.
Description of drawings
Accompanying drawing 1 is the structural representation of existing double screw extruder vacuum plant;
Accompanying drawing 2 is structural representations of the utility model.
Wherein: 1-double screw extruder; 2-exhaust outlet; 3-vacuum meter; 4-vacuum pipe; 40-be responsible for; 41-the first arm; 42-the second arm; 5-surge tank; 51-the first surge tank; 52-the second surge tank; 6-filter screen; 7-vavuum pump; 8-sewage draining exit; 9-blow-off pipe; 10-blowoff valve; 11-pipeline transfer valve.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
As shown in Figure 2: a kind of vacuum plant that is used for double screw extruder; Comprise double screw extruder 1; Double screw extruder 1 is provided with exhaust outlet 2; This exhaust outlet 2 links to each other with second surge tank 52 with first surge tank 51 through vacuum pipe 4 respectively, and first surge tank 51 and second surge tank 52 are connected with vavuum pump 7 through the vacuum pipe 4 of its arranged outside respectively.Vacuum pipe 4 is provided with pipeline transfer valve 11, wherein on the vacuum pipe 4 between first surge tank 51 and the exhaust outlet 2, on the vacuum pipe 4 on the vacuum pipe 4 between second surge tank 52 and the exhaust outlet 2, between first surge tank 51 and the vavuum pump 7 and all be provided with pipeline transfer valve 11 on the vacuum pipe 4 between second surge tank 52 and the vavuum pump 7.Be respectively equipped with on the first above-mentioned surge tank 51 and the side of second surge tank 52 and be positioned at link to each other with second surge tank 52 filter screen 6 at endface position place of an end of vacuum pipe 4 and first surge tank 51 or vacuum pipe 4, filter screen 6 is used for being deposited in first surge tank 51 or second surge tank 52 with following a small amount of material chip that the gaseous volatilization thing is pumped to vavuum pump 7 together.Vacuum pipe 4 between first surge tank 51 and second surge tank 52 and the vavuum pump 7 is by first arm 41, second arm 42 and be responsible for 40 and form; Wherein first surge tank 51 successively through first arm 41 be responsible for 40 and be communicated with vavuum pump 7, the pipeline transfer valve 11 of setting is positioned on first arm 41 on the vacuum pipe 4 between first surge tank 51 and the vavuum pump 7; Second surge tank 52 successively through second arm 42 be responsible for 40 and be communicated with vavuum pump 7, the pipeline transfer valve 11 of setting is positioned on second arm 42 on the vacuum pipe 4 between second surge tank 52 and the vavuum pump 7.In order to monitor the level of vacuum in the vacuum pipe 4, on the vacuum pipe 4 between first surge tank 51 or second surge tank 52 and the exhaust outlet 2, be provided with vacuum meter 3; And the sewage draining exit 8 that impurity is got rid of in the bottom of first surge tank 51 and second surge tank 52 is respectively equipped with surge tank, this sewage draining exit 8 is connected with the external world through the blow-off pipe 9 of its arranged outside, and blow-off pipe 9 is provided with the blowoff valve 10 of control piper.
The structure chart of the utility model is as shown in Figure 2; Exhaust outlet 2 on the double screw extruder 1 links to each other with second surge tank 52 with first surge tank 51 through vacuum pipe 4 respectively; Article two, all be provided with the pipeline transfer valve 11 that is used to switch pipeline on the vacuum pipe 4; Wherein on the vacuum pipe 4 between first surge tank 51 and the exhaust outlet 2, be provided with vacuum meter 3, vacuum meter 3 is between pipeline transfer valve 11 and exhaust outlet 2; On the side of first surge tank 51 and second surge tank 52, be respectively equipped with and be positioned at link to each other with second surge tank 52 filter screen 6 at endface position place of an end of vacuum pipe 4 and first surge tank 51 or vacuum pipe 4, wherein first arm 41 through being provided with pipeline transfer valve 11 and the person in charge 40 are communicated with vavuum pump 7 first surge tank 51 successively; Second surge tank 52 successively second arm 42 through being provided with pipeline transfer valve 11 be responsible for 40 and be communicated with vavuum pump 7.The sewage draining exit 8 that impurity is got rid of in the bottom of first surge tank 51 and second surge tank 52 is respectively equipped with surge tank, this sewage draining exit 8 is connected with the external world through the blow-off pipe 9 of its arranged outside, and blow-off pipe 9 is provided with the blowoff valve 10 of control piper.When reality is used; Can the pipeline transfer valve 11 on the vacuum pipe 4 of first surge tank, 51 1 sides cut out; Start vavuum pump 7 and carry out work, when the impurity in second surge tank 52 is about to be full of, the pipeline transfer valve 11 on the vacuum pipe 4 of first surge tank, 51 1 sides is opened; Then the pipeline transfer valve 11 on the vacuum pipe 4 of second surge tank, 52 1 sides cuts out, with the contaminant removal in second surge tank 52.So be used alternatingly, avoided the decline of product quality, guaranteed the stability and the continuation of production, have tangible economic benefit, suitable promoting the use of.
The technology that the utility model does not relate to all can realize through prior art.
Claims (9)
1. vacuum plant that is used for double screw extruder; Comprise double screw extruder (1); Double screw extruder (1) is provided with exhaust outlet (2); It is characterized in that described exhaust outlet (2) links to each other with second surge tank (52) with first surge tank (51) through vacuum pipe (4) respectively, described first surge tank (51) and second surge tank (52) are connected with vavuum pump (7) through the vacuum pipe (4) of its arranged outside respectively; Described vacuum pipe (4) is provided with pipeline transfer valve (11).
2. the vacuum plant that is used for double screw extruder according to claim 1 is characterized in that the vacuum pipe (4) between said first surge tank (51) and the exhaust outlet (2) is provided with pipeline transfer valve (11).
3. the vacuum plant that is used for double screw extruder according to claim 1 is characterized in that the vacuum pipe (4) between said second surge tank (52) and the exhaust outlet (2) is provided with pipeline transfer valve (11).
4. the vacuum plant that is used for double screw extruder according to claim 1 is characterized in that the vacuum pipe (4) between described first surge tank (51) or second surge tank (52) and the exhaust outlet (2) is provided with vacuum meter (3).
5. the vacuum plant that is used for double screw extruder according to claim 1; It is characterized in that being respectively equipped with filter screen (6) on the side of said first surge tank (51) and second surge tank (52), described filter screen (6) is positioned at link to each other with second surge tank (52) the endface position place of an end of vacuum pipe (4) and first surge tank (51) or vacuum pipe (4).
6. the vacuum plant that is used for double screw extruder according to claim 1 is characterized in that the vacuum pipe (4) between described first surge tank (51) and second surge tank (52) and the vavuum pump (7) is made up of first arm (41), second arm (42) and the person in charge (40); Described first surge tank (51) is communicated with vavuum pump (7) through first arm (41) and the person in charge (40) successively, and described second surge tank (52) is communicated with vavuum pump (7) through second arm (42) and the person in charge (40) successively.
7. the vacuum plant that is used for double screw extruder according to claim 6 is characterized in that the pipeline transfer valve (11) that the vacuum pipe (4) between said first surge tank (51) and the vavuum pump (7) upward is provided with is positioned on first arm (41).
8. the vacuum plant that is used for double screw extruder according to claim 6 is characterized in that the pipeline transfer valve (11) that the vacuum pipe (4) between said second surge tank (52) and the vavuum pump (7) upward is provided with is positioned on second arm (42).
9. the vacuum plant that is used for double screw extruder according to claim 1; The bottom that it is characterized in that said first surge tank (51) and second surge tank (52) is respectively equipped with sewage draining exit (8); Described sewage draining exit (8) is provided with blow-off pipe (9), and blow-off pipe (9) is provided with blowoff valve (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203387412U CN202225418U (en) | 2011-09-09 | 2011-09-09 | Vacuum device for double-screw extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203387412U CN202225418U (en) | 2011-09-09 | 2011-09-09 | Vacuum device for double-screw extruder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202225418U true CN202225418U (en) | 2012-05-23 |
Family
ID=46076022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203387412U Expired - Fee Related CN202225418U (en) | 2011-09-09 | 2011-09-09 | Vacuum device for double-screw extruder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202225418U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102990903A (en) * | 2011-09-09 | 2013-03-27 | 江苏南方涂装环保股份有限公司 | Vacuum device for double-screw extruder |
| CN105189073A (en) * | 2013-03-22 | 2015-12-23 | 株式会社日本制钢所 | Continuous extrusion device based on twin screw extruder |
-
2011
- 2011-09-09 CN CN2011203387412U patent/CN202225418U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102990903A (en) * | 2011-09-09 | 2013-03-27 | 江苏南方涂装环保股份有限公司 | Vacuum device for double-screw extruder |
| CN105189073A (en) * | 2013-03-22 | 2015-12-23 | 株式会社日本制钢所 | Continuous extrusion device based on twin screw extruder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120523 Termination date: 20140909 |
|
| EXPY | Termination of patent right or utility model |