CN104552652A - Drying equipment for plasticizing of plastic sheets - Google Patents
Drying equipment for plasticizing of plastic sheets Download PDFInfo
- Publication number
- CN104552652A CN104552652A CN201410837294.3A CN201410837294A CN104552652A CN 104552652 A CN104552652 A CN 104552652A CN 201410837294 A CN201410837294 A CN 201410837294A CN 104552652 A CN104552652 A CN 104552652A
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- extruder
- drying
- drying tower
- vented
- plastic sheet
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Abstract
The invention discloses drying equipment for plasticizing of plastic sheets. The equipment comprises a dryer, a screw conveyer and a vent type extruder, wherein the dryer comprises a dehumidifier and a drying tower, and the lower end of the drying tower is connected with the dehumidifier; a discharging port is arranged at the other end of the screw conveyer and connected with a hopper; the hopper is mounted on the vent type extruder; the vent type extruder comprises an extruder body, a vent pipe, an air exhaust filter and a vacuum pump. The equipment substitutes for previous continuous drying equipment, the drying time is shortened under the condition of the same drying efficiency.
Description
Technical field
The present invention relates to the dry field of plastic sheet plasticizing process, especially a kind of plastic sheet plasticizing drying equipment.
Background technology
In PET bottle sheet plasticizing process, material needs the dry processing that fully just can enter next step.Existing equipment, in raw material extrusion, can produce gas, and on the one hand from material itself, the moisture on the other hand on material flashes to steam at processing temperatures, is exactly the low molecular weight volatile thing of internal batch and the evaporation of moisture in addition.This air can leave bubble on material, increases the end breakage rate of spinning process, also can impact end product quality.
The existing pump-down process to material is before extruded material, utilizes predrying equipment to carry out continuous drying to material.This predrying equipment, drying effect is poor, and the continuous drying time is long, and the use of equipment adds the height of single unit system, adds the height of factory building simultaneously, improves building cost.
Summary of the invention
The object of this invention is to provide a kind of plastic sheet plasticizing drying equipment.
Solution of the present invention be that the drying time existing for continuous drying is long, and drying effect is poor, and equipment cost is high in PET bottle sheet plasticizing process, the defect that factory building height is high.
The technical scheme that the present invention solves the employing of its technical problem is: the present invention includes drying machine and be connected to the conveying worm on drying machine, connect vented extruder, vented extruder is connected with extraction sector after it is characterized in that described conveying worm; Described drying machine comprises dehumidifier and drying tower, and dehumidifier is connected on drying tower; Described vented extruder comprises extruder and extraction sector, and extruder is connected with extraction sector, and top, extruder one end is provided with feed hopper, and the extruder other end is provided with discharging opening; The feed end of described conveying worm is connected with drying tower, and the discharge end of conveying worm is facing to feed hopper.
Further, described extraction sector comprises blast pipe, air exhaust filtering device and vavuum pump, described blast pipe one end connecting extruder, and the other end is connected with vavuum pump by air exhaust filtering device.
Further, described extruder top is provided with exhaust outlet, and described extruder is connected with blast pipe by exhaust outlet.
Further, described extruder comprises vented screw, vented screw and reduction box, and vented screw is located in extruder, and described vented screw is connected with reduction box, and reduction box is connected with motor.
It is further, described that dehumidifier upper end is provided with discharge pipe, lower end is provided with backwind tube.
Further, be provided with mixer in described drying tower, drying tower bottom is provided with hopper, and drying tower top is provided with feeding mouth.
Further, described dehumidifier is communicated with drying tower top by discharge pipe, and dehumidifier is communicated with by the hopper of backwind tube with drying tower bottom.
Further, described conveying worm tilts to be installed between drying machine and vented extruder, and the feed end of conveying worm is connected with the hopper of drying tower bottom.
The invention has the beneficial effects as follows: the present invention, in the dry run of material, employs vented extruder, air exhaust filtering device and vavuum pump, and combinationally using of these equipment can improve drying efficiency, shorten drying time.The steam that vented screw in vented extruder evaporates under can making the moisture content in material, solvent, monomer, incoagulable gas and processing temperature is volatilized and is removed, thus eliminates bubble, raising quality of item.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of extruder of the present invention.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described.
As shown in Figure 1, the present invention includes drying machine and be connected to the conveying worm 3 on drying machine, connect vented extruder after described conveying worm 3, vented extruder is connected with extraction sector.
Described drying machine comprises dehumidifier 1 and drying tower 2, and dehumidifier 1 is connected on drying tower 2.Described vented extruder comprises extruder 5 and extraction sector, and extruder 5 is connected with extraction sector.Top, extruder 5 one end is provided with feed hopper 4, and the extruder other end is provided with discharging opening 5-2.The feed end 3-1 of described conveying worm 3 is connected with drying tower 2, and the discharge end 3-2 of conveying worm 3 is facing to feed hopper 4.
Described extraction sector comprises blast pipe 6, air exhaust filtering device 7 and vavuum pump 8, described blast pipe 6 one end connecting extruder 5, and the other end is connected 8 by air exhaust filtering device 7 with vavuum pump.
Described extruder 5 top is provided with exhaust outlet 5-1, and described extruder 5 is connected with blast pipe 6 by exhaust outlet 5-1.Described extruder 5 comprises vented screw 14, vented screw 14 and reduction box 15, and be connected with reduction box 15 in vented screw 14 extruder 5, reduction box 15 is connected with motor 16.
Described dehumidifier upper end is provided with discharge pipe 1-1, lower end is provided with backwind tube 2-1.Be provided with mixer 2-3 in described drying tower 2, drying tower 2 bottom is provided with hopper 2-4, and drying tower 2 top is provided with feeding mouth 2-2.Described dehumidifier 1 is communicated with drying tower 2 top by discharge pipe 1-1, and dehumidifier 1 is communicated with the hopper 2-4 of drying tower 2 bottom by backwind tube 2-1.Described conveying worm 3 tilts to be installed between drying machine and vented extruder.Described conveying worm 3 tilts to be installed between drying machine and vented extruder, and the feed end 3-1 of conveying worm is connected with the hopper 2-4 of drying tower 2 bottom.
For workflow of the present invention is:
(1) material enters from the feeding mouth 2-2 of drying tower, fully mixes under mixer 2-3 stirs;
(2) material after mixing concentrates in drying tower 2, starts dehumidifier 1, reduces the humidity of material;
(3) material, under the work of conveying worm 3, is delivered to the feed hopper 4 vented extruder by the material after dehumidifying from drying tower 2.
(4) material enters the first stage A of vented screw, and Solid Conveying and Melting, melting compression and mixing homogenizing are to plastifying state;
(5) due to the intensification of screw channel on vented screw 14, and the swabbing action of vavuum pump 8, pressure drop, in plastic melt, air under pressure foams in the melt with the volatile matter gasified, under the stirring shear action of vented screw 14, bubbles burst, the gas of spilling is discharged from exhaust outlet 5-1, reduces the water content in melt;
(7) through the melt of exhaust, continue the second stage B entering vented screw 14, compression and mixing homogenizing, then extrude from the discharging opening 5-2 of extruder further.
Equipment of the present invention, can replace the dry processing of time-consuming existing continuous drying equipment, further shortens the dry time, enhances productivity.
Claims (7)
1. a plastic sheet plasticizing drying equipment, comprises drying machine and is connected to the conveying worm on drying machine, connect vented extruder, vented extruder is connected with extraction sector after it is characterized in that described conveying worm; Described drying machine comprises dehumidifier and drying tower, and dehumidifier is connected on drying tower; Described vented extruder comprises extruder and extraction sector, and extruder is connected with extraction sector, and top, extruder one end is provided with feed hopper, and the extruder other end is provided with discharging opening; The feed end of described conveying worm is connected with drying tower, and the discharge end of conveying worm is facing to feed hopper.
2. a kind of plastic sheet plasticizing drying equipment according to claim 1, it is characterized in that described extraction sector comprises blast pipe, air exhaust filtering device and vavuum pump, described blast pipe one end connecting extruder, the other end is connected with vavuum pump by air exhaust filtering device.
3. a kind of plastic sheet plasticizing drying equipment according to claim 2, it is characterized in that described extruder top is provided with exhaust outlet, described extruder is connected with blast pipe by exhaust outlet.
4. a kind of plastic sheet plasticizing drying equipment according to claim 1, it is characterized in that described extruder comprises vented screw, vented screw and reduction box, vented screw is located in extruder, and described vented screw is connected with reduction box, and reduction box is connected with motor.
5. a kind of plastic sheet plasticizing drying equipment according to claim 1, is characterized in that described dehumidifier upper end is provided with discharge pipe, lower end is provided with backwind tube.
6. a kind of plastic sheet plasticizing drying equipment according to claim 1, it is characterized in that being provided with mixer in described drying tower, drying tower bottom is provided with hopper, and drying tower top is provided with feeding mouth.
A kind of plastic sheet plasticizing drying equipment according to claim 5 or 6, it is characterized in that described dehumidifier is communicated with drying tower top by discharge pipe, dehumidifier is communicated with by the hopper of backwind tube with drying tower bottom.
7. a kind of plastic sheet plasticizing drying equipment according to claim 1 or 6, it is characterized in that described conveying worm tilts to be installed between drying machine and vented extruder, the feed end of conveying worm is connected with the hopper of drying tower bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410837294.3A CN104552652A (en) | 2014-12-30 | 2014-12-30 | Drying equipment for plasticizing of plastic sheets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410837294.3A CN104552652A (en) | 2014-12-30 | 2014-12-30 | Drying equipment for plasticizing of plastic sheets |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104552652A true CN104552652A (en) | 2015-04-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410837294.3A Pending CN104552652A (en) | 2014-12-30 | 2014-12-30 | Drying equipment for plasticizing of plastic sheets |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104552652A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108407137A (en) * | 2018-03-18 | 2018-08-17 | 宁波革创新材料科技有限公司 | A kind of fiber reinforced thermolplastic composite material process units |
-
2014
- 2014-12-30 CN CN201410837294.3A patent/CN104552652A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108407137A (en) * | 2018-03-18 | 2018-08-17 | 宁波革创新材料科技有限公司 | A kind of fiber reinforced thermolplastic composite material process units |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150429 |