CN115615151A - A dry unloader for polyurethane granule - Google Patents
A dry unloader for polyurethane granule Download PDFInfo
- Publication number
- CN115615151A CN115615151A CN202210513696.2A CN202210513696A CN115615151A CN 115615151 A CN115615151 A CN 115615151A CN 202210513696 A CN202210513696 A CN 202210513696A CN 115615151 A CN115615151 A CN 115615151A
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- pipe
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- air
- way pipe
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- 229920002635 polyurethane Polymers 0.000 title claims abstract description 8
- 239000004814 polyurethane Substances 0.000 title claims abstract description 8
- 239000008187 granular material Substances 0.000 title claims abstract description 5
- 238000001035 drying Methods 0.000 claims abstract description 58
- 239000004594 Masterbatch (MB) Substances 0.000 claims abstract description 13
- 230000008676 import Effects 0.000 claims abstract description 9
- 238000000926 separation method Methods 0.000 claims abstract description 3
- 238000007599 discharging Methods 0.000 claims description 10
- 238000007602 hot air drying Methods 0.000 claims description 4
- 238000010981 drying operation Methods 0.000 description 6
- 238000002425 crystallisation Methods 0.000 description 5
- 230000008025 crystallization Effects 0.000 description 5
- 230000006872 improvement Effects 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- 238000007689 inspection Methods 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 229920006351 engineering plastic Polymers 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B9/00—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards
- F26B9/06—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in stationary drums or chambers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/18—Check valves with actuating mechanism; Combined check valves and actuated valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/001—Handling, e.g. loading or unloading arrangements
- F26B25/002—Handling, e.g. loading or unloading arrangements for bulk goods
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/005—Treatment of dryer exhaust gases
- F26B25/007—Dust filtering; Exhaust dust filters
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The utility model provides a dry unloader for polyurethane granule, including stoving jar and feed portion, it is connected with circulation air feed portion to dry the jar through the pipeline, feed portion is connected with the stoving jar through the inlet pipe, be provided with first check pipe on the play tuber pipe of circulation air feed portion, first check pipe is connected with the lateral part of stoving jar, the air outlet of first check pipe is linked together with the inner chamber of stoving jar, the discharge gate of stoving jar is located another lateral part of stoving jar, be connected with the ejection of compact guiding tube on the discharge gate, the ejection of compact guiding tube is connected with the carousel ware, be provided with the second check pipe on the carousel ware, when the import of second check pipe aligns with the opening of ejection of compact guiding tube, the master batch that is located in the stoving jar leaves the stoving jar from the second check pipe, when the import of second check pipe and the crisscross separation of opening of ejection of compact guiding tube, the opening of ejection of compact guiding tube is sealed to the outer wall of carousel ware. The invention has the advantages that: the occupied space of the drying device is reduced, and the drying efficiency is improved.
Description
Technical Field
The invention relates to the technical field of manufacturing of chemical fiber master batch drying devices, in particular to a drying and discharging device for polyurethane particles.
Background
The prior Chinese utility model patent with the application number of CN201922161941.4, namely 'a raw material drying device for producing modified PBT engineering plastics' discloses a raw material drying device for producing modified PBT engineering plastics, which comprises a box body, wherein a drying and stirring mechanism is arranged inside the box body; the utility model discloses a stirring mechanism, including the rabbling mechanism, the fixed cover in the rabbling barrel outside is equipped with first gear, first gear one side is equipped with the second gear, the inside fixed pivot that is equipped with of second gear, the fixed motor that is equipped with of pivot one end, the fixed cover in the pivot other end outside is equipped with first belt pulley, first belt pulley outside cover is equipped with the belt, the belt other end is equipped with the second belt pulley, the inside fixed puddler that is equipped with of second belt pulley, the fixed air-supply line that is equipped with in conveying pipeline one side, the fixed air-supply line other end is equipped with the air-heater. The utility model discloses a turn to the difference through puddler and agitator, deuterogamy air heater stirs the stoving to the raw materials, has improved drying efficiency. However, the device needs to suspend the drying operation after a batch of raw materials is dried, and when the device is started again after a new raw material is put in, the drying efficiency still has room to be improved, so the structure of the device needs to be further improved.
Disclosure of Invention
The invention aims to solve the technical problem of providing a drying and blanking device for polyurethane particles, which has the advantages of small occupied space, capability of continuously drying materials and high material drying efficiency.
The technical scheme adopted by the invention for solving the technical problems is as follows: this a dry unloader for polyurethane granule, including the stoving jar that can let in hot-blast drying PBT master batch and the feed portion that can send the PBT master batch into the stoving jar, the stoving jar is connected with circulation air feed portion through the pipeline, feed portion is connected its characterized in that with the stoving jar through the inlet pipe that can one-way unloading: be provided with first check pipe on the play tuber pipe of circulation air feed portion, first check pipe is connected with the lateral part of stoving jar, the air outlet of first check pipe is linked together with the inner chamber of stoving jar, the discharge gate of stoving jar is located another lateral part of stoving jar be connected with ejection of compact guiding tube on the discharge gate, ejection of compact guiding tube is connected with the opening pivoted carousel ware of ejection of compact guiding tube relatively be provided with the second check pipe on the carousel ware, when the import of second check pipe aligns with the opening of ejection of compact guiding tube, the master batch that is located in the stoving jar leaves the stoving jar from the second check pipe, when the import of second check pipe and the opening staggered separation of ejection of compact guiding tube, the opening of ejection of compact guiding tube is sealed to the outer wall of carousel ware.
As a refinement, the first one-way tube may preferably be a tesla valve tube.
In a further improvement, a first air inlet and a second air inlet can be preferably arranged at one end of the first one-way pipe, the first air inlet is communicated with an outlet of an air outlet pipe of the circulating air supply part, and the second air inlet is communicated with a hot air outlet of the second air heater.
The circulating air supply part can preferably comprise a first air heater and a filter, an air outlet pipe of the first air heater is connected with a first one-way pipe, the filter is connected with an air outlet pipe positioned at the top of the drying tank, the filter is connected with the first air heater through a circulating pipe, an exhaust gas branch pipe is arranged on the circulating pipe, and a switch valve is arranged on the exhaust gas branch pipe.
In a further improvement, the drying tank and the filter may preferably be disposed on an inspection rack, and an inspection opening that can be opened and closed is provided on a side wall of the drying tank.
As an improvement, the turntable device preferably comprises an annular track, a turntable body capable of rotating in the annular track and a discharge pipe, the discharge pipe is connected with the annular track, the second one-way pipe is connected to the turntable body, when an inlet of the second one-way pipe is aligned with an opening of the discharge guide pipe, an inlet of the discharge pipe is communicated with an outlet of the second one-way pipe, and a driver capable of driving the turntable body to rotate relative to the annular track is arranged on the annular track.
In a further refinement, the second one-way tube may preferably be a tesla valve tube.
In a further improvement, the inlet and the outlet of the second one-way pipe are preferably parallel to the length direction of the second one-way pipe, and the inlet and the outlet of the second one-way pipe are rotationally symmetrical.
In a further improvement, the turntable body can be preferably provided with a turntable body through hole which can reduce the weight of the turntable body.
The discharging pipe can be preferably provided with a backflushing device, a backflushing opening of the backflushing device is communicated with an inlet of the discharging pipe, and when an outlet of the second one-way pipe is aligned with an opening of the discharging guide pipe, the backflushing opening of the backflushing device is communicated with an outlet of the second one-way pipe.
Compared with the prior art, the invention has the advantages that: the method has the advantages that the pre-crystallization and drying operation of the PBT master batches are integrated in the drying tank to be completed in one step, so that the occupied space of the device is greatly reduced, the main parts of the device are arranged in one floor, the maintenance and the overhaul are convenient, hot air is firstly blown in by the first air heater to perform primary drying after the master batches enter the drying tank, water vapor remained on the master batches is evaporated, the second air heater is opened after the set time is reached, the air speed and the hot air temperature are improved, the drying operation of the master batches is realized, and the drying efficiency is high; because the business turn over of stoving jar has all utilized the one-way pipe design ingeniously, and the one-way pipe is located the lateral part of stoving jar, consequently need not to shut down the ejection of compact, can carry out the master batch stoving of many batches continuously, drying efficiency obviously improves.
Drawings
FIG. 1 is a perspective view of an embodiment of the present invention;
FIG. 2 is a perspective view of FIG. 1 at another angle;
FIG. 3 is a perspective view of FIG. 2 at another angle;
FIG. 4 is a perspective view of the drying and blanking device shown in FIG. 1 with the floor removed;
FIG. 5 is an exploded view of the structure of FIG. 4;
FIG. 6 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 5;
fig. 7 is a cross-sectional view taken along line B-B of fig. 5.
Detailed Description
The invention is described in further detail below with reference to the following examples of the drawings.
As shown in fig. 1 to 7, the drying and blanking device for polyurethane particles of this embodiment includes a drying tank 1 capable of introducing hot air to dry PBT master batches and a feeding portion 2 capable of feeding PBT master batches into the drying tank 1, the drying tank 1 is connected to a circulating air supply portion 3 through a pipeline, the feeding portion 2 is connected to the drying tank 1 through a feeding pipe capable of unidirectional blanking, a first one-way pipe 4 is disposed on an air outlet pipe of the circulating air supply portion 3, the first one-way pipe 4 is connected to a side portion of the drying tank 1, an air outlet of the first one-way pipe 4 is communicated with an inner cavity of the drying tank 1, a discharge port of the drying tank 1 is located at another side portion of the drying tank 1, a discharge guide pipe 11 is connected to the discharge port, the discharge guide pipe 11 is connected to a rotary table device 5 capable of rotating relative to an opening of the discharge guide pipe 11, a second one-way pipe 51 is disposed on the rotary table device 5, when an inlet of the second one-way pipe 51 is aligned to an opening of the discharge guide pipe 11, the discharge guide pipe located in the drying tank 1 is separated from the second one-way pipe 51, and when the opening of the rotary table device is separated from the rotary table device, the opening of the discharge guide pipe 11, the discharge guide pipe 11. The specific structure of the feeding portion 2 belongs to the prior art and will not be described in detail.
The first check tube 4 is a tesla valve tube. One end of the first one-way pipe 4 is provided with a first air inlet 41 and a second air inlet 42, the first air inlet 41 is communicated with the outlet of the air outlet pipe of the circulating air supply part 3, and the second air inlet 42 is communicated with the hot air outlet of the second hot air blower 6.
The circulation air supply part 3 comprises a first air heater and a filter 31, an air outlet pipe of the first air heater is connected with a first one-way pipe 4, the filter 31 is connected with an air outlet pipe positioned at the top of the drying tank 1, and an air inlet of the air outlet pipe prevents the master batches from leaving the drying tank 1 along with hot air from the air outlet pipe by a corresponding filter screen. In the same way, the feed pipe is also provided with a one-way valve to prevent the master batches from being blown by hot air and backflushed into the feed pipe, and the first one-way pipe 4 is a hot air device structure with air inlet at the side part, so that the structure is different from that of a bottom air inlet device in the prior art, and the master batches are not easy to backflush into the feed pipe. The filter 31 is connected to the first air heater through a circulation pipe, an exhaust branch pipe 32 is provided on the circulation pipe, and a switching valve is provided on the exhaust branch pipe 32. The specific structure of the first hot air blower, the second hot air blower 6 and the filter 31 is well known in the art and will not be described in detail. The switch valve can be automatically controlled through the controller, the controller is connected with the temperature sensor, the pressure sensor and the moisture percentage sensor on the drying tank through the circuit at the moment, the switch valve can also be manually controlled according to the thermometer, the pressure gauge and the moisture measuring instrument on the drying tank, and no matter what control method, the specific safe drying operation and the drying method belong to the prior art, so the detailed description is not given.
The drying tank 1 and the filter 31 are provided on the inspection rack 7, and an inspection opening that can be opened and closed is provided on a side wall of the drying tank 1.
The turntable device 5 comprises an annular track 50, a turntable body capable of rotating in the annular track and a discharge pipe 52, the discharge pipe 52 is connected with the annular track 50, a second one-way pipe 51 is connected on the turntable body, when an inlet of the second one-way pipe 51 is aligned with an opening of the discharge guide pipe 11, an inlet of the discharge pipe 52 is communicated with an outlet of the second one-way pipe 51, and a driver 53 capable of driving the turntable body to rotate relative to the annular track 50 is arranged on the annular track 50. The driver 53 comprises driving wheels symmetrically arranged at two sides of the discharging guide pipe 11, the two driving wheels are respectively attached to the outer wall of the turntable body, and the two driving wheels are respectively connected with respective driving motors in a transmission way.
The second check pipe 51 is a tesla valve pipe. The inlet 511 and the outlet 512 of the second unidirectional tube 51 are both parallel to the length direction of the second unidirectional tube 51, and the inlet 511 and the outlet 512 of the second unidirectional tube 51 are rotationally symmetrical. The turntable body is provided with a turntable body through hole which can reduce the weight of the turntable body.
A backflushing device 54 is arranged on the discharge pipe 52, a backflushing opening of the backflushing device 54 is communicated with an inlet of the discharge pipe 52, and when an outlet of the second one-way pipe 51 is aligned with an opening of the discharge guide pipe 11, the backflushing opening of the backflushing device 54 is communicated with an inlet of the second one-way pipe 51.
The working principle is as follows: in the prior art, the PBT master batches are subjected to two preposed drying steps of pre-crystallization and hot air drying, so that a pre-crystallization device and a hot air drying device which are arranged up and down are required to perform drying operation, and the two devices occupy large space and often occupy three layers (one layer is provided with a PBT feeding tank, namely a feeding part, the other layer is provided with a pre-crystallization device, and the other layer is provided with a hot air drying device) in a building. In the drying process, the drying is carried out in batches, after one batch is finished, the hot air blower needs to be shut down first, the dried master batches are conveyed out for corresponding drying, then the next batch of drying processing is carried out, and the drying efficiency is very low.
Adopt behind this device crystallization in advance and stoving operation integration go on in the stoving jar, and the master batch after the stoving directly blows out the stoving jar by hot-blast, need not to stop the operation of air heater, has improved the availability factor of whole device.
Because the design of one-way pipe is all adopted in hot-blast import and export, hot-blast stoving masterbatch in the effect endless entering drying tank of circulation air feed portion when drying, the vapor of evaporation and waste gas are discharged after getting into the filter from the pipeline, after the stoving reaches the settlement time, originally confined drying tank discharge gate is opened when the carousel body rotates, the masterbatch leaves the drying tank along with hot-blast from the second one-way pipe, get into next process from the discharging pipe again, feeding portion can directly carry out next batch unloading and stoving this moment, need not to stop the work of air heater.
After the master batches enter the drying tank, hot air is blown in by the first air heater to perform primary drying, water vapor remained on the master batches is evaporated, the second air heater is opened after the set time is reached, the air speed and the hot air temperature are improved, and the drying operation of the master batches is realized.
The second one-way pipe can also rotate by 360 degrees, the recoil device is started after the rotation, and at the moment, due to the action of the one-way pipe, the recoil air is remained in the master batch of the second one-way pipe and is blown into the drying tank again, so that the residual in the pipe is avoided.
Claims (10)
1. The utility model provides a dry unloader for polyurethane granule, is including drying tank (1) that can let in hot air drying PBT master batch and feeding portion (2) that can send the PBT master batch into drying tank (1), drying tank (1) is connected with circulation air feed portion (3) through the pipeline, feeding portion (2) are connected with drying tank (1) through the inlet pipe that can one-way unloading, its characterized in that: be provided with first one-way pipe (4) on the play tuber pipe of circulation air feed portion (3), first one-way pipe (4) are connected with the lateral part of stoving jar (1), the air outlet of first one-way pipe (4) is linked together with the inner chamber of stoving jar (1), the discharge gate of stoving jar (1) is located another lateral part of stoving jar (1) be connected with ejection of compact guiding tube (11) on the discharge gate, ejection of compact guiding tube (11) are connected with opening pivoted carousel ware (5) of ejection of compact guiding tube (11) relatively be provided with second one-way pipe (51) on carousel ware (5), when the import of second one-way pipe (51) aligns with the opening of ejection of compact guiding tube (11), the master batch that is located in stoving jar (1) leaves stoving jar (1) from second one-way pipe (51), when the import of second one-way discharging tube (51) and the crisscross separation of opening of guiding tube (11), the opening of the ejection of compact dish guiding tube (11) is sealed to the lateral wall of carousel ware (5).
2. The dry blanking device of claim 1, wherein: the first one-way tube (4) is a Tesla valve tube.
3. A dry blanking device according to claim 2, characterised in that: and a first air inlet (41) and a second air inlet (42) are arranged at one end of the first one-way pipe (4), the first air inlet (41) is communicated with an outlet of an air outlet pipe of the circulating air supply part (3), and the second air inlet (42) is communicated with a hot air outlet of the second air heater (6).
4. The dry blanking device of claim 3, wherein: circulation air feed portion (3) include first air heater and filter (31), the play tuber pipe of first air heater is connected with first check pipe (4), filter (31) are connected with the play tuber pipe that is located stoving jar (1) top, filter (31) are connected with first air heater through the circulating pipe be provided with exhaust branch pipe (32) on the circulating pipe be provided with the ooff valve on exhaust branch pipe (32).
5. The dry blanking device of claim 4, wherein: the drying tank (1) and the filter (31) are arranged on the overhaul frame (7), and an overhaul opening capable of being opened and closed is arranged on the side wall of the drying tank (1).
6. A dry blanking device according to any one of claims 1 to 5, characterised in that: carousel ware (5) include annular track (50), can be in annular track pivoted carousel body and discharging pipe (52), discharging pipe (52) are connected with annular track (50), second one-way pipe (51) are connected on the carousel body, and when the import of second one-way pipe (51) aligns with the opening of ejection of compact guide tube (11), the import of discharging pipe (52) is linked together with the export of second one-way pipe (51) be provided with on annular track (50) and drive carousel body relative annular track (50) pivoted driver (53).
7. The dry blanking device of claim 6, wherein: the second one-way tube (51) is a Tesla valve tube.
8. The dry blanking device of claim 7, wherein: the inlet (511) and the outlet (512) of the second one-way pipe (51) are both parallel to the length direction of the second one-way pipe (51), and the inlet (511) and the outlet (512) of the second one-way pipe (51) are rotationally symmetrical.
9. The dry blanking device of claim 6, wherein: the turntable body is provided with a turntable body through hole which can reduce the weight of the turntable body.
10. The dry blanking device of claim 6, wherein: a backflushing device (54) is arranged on the discharge pipe (52), a backflushing opening of the backflushing device (54) is communicated with an inlet of the discharge pipe (52), and when an outlet of the second one-way pipe (51) is aligned with an opening of the discharge guide pipe (11), the backflushing opening of the backflushing device (54) is communicated with an inlet of the second one-way pipe (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210513696.2A CN115615151B (en) | 2022-05-12 | 2022-05-12 | A dry unloader for polyurethane granule |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210513696.2A CN115615151B (en) | 2022-05-12 | 2022-05-12 | A dry unloader for polyurethane granule |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115615151A true CN115615151A (en) | 2023-01-17 |
| CN115615151B CN115615151B (en) | 2024-02-02 |
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| CN202210513696.2A Active CN115615151B (en) | 2022-05-12 | 2022-05-12 | A dry unloader for polyurethane granule |
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