CN115615151B - A dry unloader for polyurethane granule - Google Patents
A dry unloader for polyurethane granule Download PDFInfo
- Publication number
- CN115615151B CN115615151B CN202210513696.2A CN202210513696A CN115615151B CN 115615151 B CN115615151 B CN 115615151B CN 202210513696 A CN202210513696 A CN 202210513696A CN 115615151 B CN115615151 B CN 115615151B
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- China
- Prior art keywords
- pipe
- unidirectional
- stoving jar
- inlet
- ejection
- 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.)
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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 55
- 239000004594 Masterbatch (MB) Substances 0.000 claims abstract description 28
- 230000008676 import Effects 0.000 claims abstract description 6
- 238000000926 separation method Methods 0.000 claims abstract description 3
- 238000007599 discharging Methods 0.000 claims description 14
- 238000010981 drying operation Methods 0.000 description 7
- 238000003756 stirring Methods 0.000 description 7
- 238000002425 crystallisation Methods 0.000 description 5
- 230000008025 crystallization Effects 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- 238000007602 hot air drying Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 229920006351 engineering plastic Polymers 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000000034 method Methods 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
- 238000010923 batch production Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000011161 development Methods 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
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Classifications
-
- 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
-
- 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
-
- 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
Abstract
The utility model provides a dry unloader for polyurethane granule, including stoving jar and feed portion, the stoving jar is connected with circulation air supply portion through the pipeline, the feed portion is connected with the stoving jar through the inlet pipe, be provided with first unidirectional pipe on the play tuber pipe of circulation air supply portion, first unidirectional pipe is connected with the lateral part of stoving jar, the air outlet of first unidirectional pipe is linked together with the inner chamber of stoving jar, the discharge gate of stoving jar is located the another lateral part of stoving jar, be connected with the ejection of compact guide pipe on the discharge gate, the ejection of compact guide pipe is connected with the carousel ware, be provided with the second unidirectional pipe on the carousel ware, when the import of second unidirectional pipe and the opening of ejection of compact guide pipe align, master batch that is located the stoving jar leaves the stoving jar from the second unidirectional pipe, when the import of second unidirectional pipe and the opening staggered separation of ejection of compact guide pipe, the opening of ejection of compact guide pipe is sealed to the outer wall of carousel ware. The utility model has the advantages that: reduces the occupied space of the drying device and improves the drying efficiency.
Description
Technical Field
The utility model relates to the technical field of manufacturing of chemical fiber master batch drying devices, in particular to a drying and blanking device for polyurethane particles.
Background
The prior Chinese patent with the application number of CN201922161941.4 entitled "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 in the box body; the stirring mechanism comprises a stirring barrel, a first gear is fixedly sleeved on the outer side of the stirring barrel, a second gear is arranged on one side of the first gear, a rotating shaft is fixedly arranged inside the second gear, a motor is fixedly arranged at one end of the rotating shaft, a first belt pulley is fixedly sleeved on the outer side of the other end of the rotating shaft, a belt is sleeved on the outer side of the first belt pulley, a second belt pulley is arranged at the other end of the belt, a stirring rod is fixedly arranged inside the second belt pulley, an air inlet pipe is fixedly arranged on one side of the conveying pipe, and an air heater is fixedly arranged at the other end of the air inlet pipe. According to the utility model, the stirring rod and the stirring barrel are different in steering, and the raw materials are stirred and dried by matching with the hot air blower, so that the drying efficiency is improved. However, the device needs to suspend the drying operation after a batch of raw materials are dried and processed, and is started again after new raw materials are put into the device, so that the drying efficiency still has room for improvement, and the structure of the device needs to be further improved.
Disclosure of Invention
The utility model aims to solve the technical problems of the prior art, and provides a drying and discharging 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 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 stoving PBT master batch and the feed portion that can send into the stoving jar with the PBT master batch, the stoving jar is connected with circulation air supply portion through the pipeline, the feed portion is connected with the stoving jar through the inlet pipe that can the unidirectional unloading, its characterized in that: the utility model provides a drying device, including circulation air supply portion, stoving jar, rotary table, first unidirectional pipe is provided with on the play tuber pipe of circulation air supply portion, first unidirectional pipe is connected with the lateral part of stoving jar, the air outlet of first unidirectional pipe is linked together with the inner chamber of stoving jar, the discharge gate of stoving jar is located the other lateral part of stoving jar be connected with the ejection of compact guide pipe on the discharge gate, the ejection of compact guide pipe is connected with the rotary table ware that can relative ejection of compact guide pipe's opening pivoted be provided with the second unidirectional pipe on the rotary table ware, when the import of second unidirectional pipe and the opening of ejection of compact guide pipe align, the masterbatch that is located the stoving jar leaves the stoving jar from the second unidirectional pipe, when the import of second unidirectional pipe and the opening staggered separation of ejection of compact guide pipe, the opening of rotary table ware is sealed to the outer wall of ejection of compact guide pipe.
As a modification, the first unidirectional tube may preferably be a tesla valve tube.
Further improved, one end of the first unidirectional pipe can be preferably provided with a first air inlet and a second air inlet, 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.
Further improved, the circulating air supply part may preferably include a first air heater and a filter, an air outlet pipe of the first air heater is connected with a first unidirectional 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 branch pipe is arranged on the circulating pipe, and a switch valve is arranged on the exhaust branch pipe.
Further improved, the drying tank and the filter can be preferably arranged on an overhaul frame, and an overhaul opening which can be opened and closed is arranged on the side wall of the drying tank.
As an improvement, the rotary table may preferably include an annular rail, a rotary table body rotatable in the annular rail, and a discharge pipe connected to the annular rail, the second one-way pipe being connected to the rotary table body, the inlet of the discharge pipe being in communication with the outlet of the second one-way pipe when the inlet of the second one-way pipe is aligned with the opening of the discharge guide pipe, and a driver being provided on the annular rail for driving the rotary table body to rotate relative to the annular rail.
Further improved, the second unidirectional tube may preferably be a tesla valve tube.
Further, the inlet and the outlet of the second unidirectional pipe may be preferably parallel to the length direction of the second unidirectional pipe, and the inlet and the outlet of the second unidirectional pipe are rotationally symmetrical.
Further, the turntable body can be preferably provided with a turntable body through hole which can lighten the weight of the turntable body.
In a further development, a backflushing device can be preferably arranged on the discharge pipe, the backflushing opening of the backflushing device being connected to the inlet of the discharge pipe, and the backflushing opening of the backflushing device being connected to the outlet of the second unidirectional pipe when the outlet of the second unidirectional pipe is aligned with the opening of the discharge guide pipe.
Compared with the prior art, the utility model has the advantages that: the pre-crystallization and drying operation of the PBT master batch are integrated in the drying tank for one time, so that the occupied space of the device is greatly reduced, the main parts of the device are arranged in one floor layer, the maintenance and the overhaul are convenient, the first air heater blows hot air to perform first drying after the master batch enters the drying tank, the second air heater is opened after the evaporation of water vapor remained on the master batch reaches the set time, the air speed and the hot air temperature are improved, the drying operation of the master batch is realized, and the drying efficiency is high; because the inlet and outlet of the drying tank skillfully utilizes the design of the one-way pipe, and the one-way pipe is positioned at the side part of the drying tank, the shutdown discharging is not needed, the masterbatch drying of multiple batches can be continuously carried out, and the drying efficiency is obviously improved.
Drawings
FIG. 1 is a perspective view of an embodiment of the present utility model;
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 structure of the floor display dry blanking device of FIG. 1 with floors removed;
FIG. 5 is an exploded view of the structure of FIG. 4;
FIG. 6 is a cross-sectional view taken along line A-A of FIG. 5;
fig. 7 is a cross-sectional view taken along line B-B in fig. 5.
Detailed Description
The utility model is described in further detail below with reference to the embodiments 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 being fed with hot air to dry PBT master batch and a feeding portion 2 capable of feeding PBT master batch into the drying tank 1, the drying tank 1 is connected with a circulating air supply portion 3 through a pipe, the feeding portion 2 is connected with the drying tank 1 through a feeding pipe capable of unidirectional blanking, a first unidirectional pipe 4 is arranged on an air outlet pipe of the circulating air supply portion 3, the first unidirectional pipe 4 is connected with a side portion of the drying tank 1, an air outlet of the first unidirectional pipe 4 is communicated with an inner cavity of the drying tank 1, a discharge port of the drying tank 1 is located at the other side portion of the drying tank 1, a discharge guide pipe 11 is connected on the discharge port, the discharge guide pipe 11 is connected with a turntable 5 capable of rotating relative to an opening of the discharge guide pipe 11, a second unidirectional pipe 51 is arranged on the turntable 5, master batch located in the drying tank 1 leaves the drying tank 1 from the second unidirectional pipe 51 when an inlet of the second unidirectional pipe 51 is aligned with an opening of the discharge guide pipe 11, and the opening of the turntable 11 is sealed by a side wall of the second unidirectional pipe 51 when the opening of the second unidirectional pipe is staggered and the opening guide pipe 11 is separated from the opening of the turntable 11. The specific structure of the feeding portion 2 belongs to the prior art and will not be described in detail.
The first unidirectional tube 4 is tesla valve tube. A first air inlet 41 and a second air inlet 42 are arranged at one end of the first unidirectional 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.
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 the first unidirectional pipe 4, the filter 31 is connected with the air outlet pipe positioned at the top of the drying tank 1, and an air inlet of the air outlet pipe is formed by a corresponding filter screen to prevent master batch from leaving the drying tank 1 from the air outlet pipe along with hot air. The same is provided with a one-way valve in the feeding pipe to prevent master batch from being blown by hot air to be backflushed into the feeding pipe, and the master batch is not easy to backflush into the feeding pipe because the first one-way pipe 4 is of a side air inlet structure different from a bottom air inlet hot air device in the prior art. 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 structures of the first air heater, the second air heater 6 and the filter 31 are known in the art, and will not be described in detail. The switch valve can be automatically controlled by the controller, and the controller is connected with the temperature sensor, the pressure sensor and the moisture percentage sensor on the drying tank through the circuits, and the switch valve can be manually controlled according to the thermometer, the pressure gauge and the hygrometer on the drying tank, and no matter what control method is adopted, the specific safe drying operation and the drying method belong to the prior art, so that the detailed description is omitted.
The drying tank 1 and the filter 31 are provided on the service frame 7, and a service opening which can be opened and closed is provided on a side wall of the drying tank 1.
The turnplate 5 comprises an annular track 50, a turnplate body capable of rotating in the annular track, and a discharging pipe 52, wherein the discharging pipe 52 is connected with the annular track 50, a second one-way pipe 51 is connected to the turnplate body, when the inlet of the second one-way pipe 51 is aligned with the opening of the discharging guide pipe 11, the inlet of the discharging pipe 52 is communicated with the outlet of the second one-way pipe 51, and a driver 53 capable of driving the turnplate 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 unidirectional tube 51 is a tesla valve tube. The inlet 511 and the outlet 512 of the second unidirectional tube 51 are 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 rotating disc body is provided with a rotating disc body through hole which can lighten the weight of the rotating disc body.
A backflushing device 54 is arranged on the discharging pipe 52, a backflushing port of the backflushing device 54 is communicated with an inlet of the discharging pipe 52, and when an outlet of the second one-way pipe 51 is aligned with an opening of the discharging guide pipe 11, the backflushing port of the backflushing device 54 is communicated with the inlet of the second one-way pipe 51.
Working principle: in the prior art, PBT master batch is subjected to two pre-crystallization and hot air drying steps, so that a pre-crystallization device and a hot air drying device which are arranged up and down are required to carry out drying operation, the occupied space of the two devices is large, and three layers (a layer is provided with a PBT feeding tank, namely a feeding part, and a layer is provided with the pre-crystallization device and a layer is provided with the hot air drying device) in a building are required to be occupied. In the drying process, the batch process is needed, when one batch is finished, the hot air blower is needed to be stopped, the dried master batch is conveyed out of the corresponding drying process, and then the next batch of drying process is carried out, so that the drying efficiency is very low.
After the device is adopted, the pre-crystallization and the drying operation are integrated in the drying tank, and the dried master batch is directly blown out of the drying tank by hot air without stopping the operation of the hot air blower, so that the service efficiency of the whole device is improved.
Because the design of the unidirectional pipe is adopted in hot air inlet and outlet, hot air is circulated through the effect of circulation air supply portion when drying and is dried the master batch in getting into the stoving jar, and evaporated vapor and waste gas are discharged after getting into the filter from the pipeline, when the stoving reaches the settlement time after, the carousel body originally confined stoving jar discharge gate is opened when rotating, master batch leaves the stoving jar along with hot air from the unidirectional pipe of second, gets into next process from the discharging pipe again, and the feed portion can directly carry out next batch unloading and stoving this moment, need not to stop the work of air heater.
After the master batch enters the drying tank, hot air is blown into the drying tank by the first hot air blower to dry for the first time, the water vapor remained on the master batch is evaporated, and after the set time is reached, the second hot air blower is opened, so that the air speed and the hot air temperature are improved, and the drying operation of the master batch is realized.
The second unidirectional pipe can also rotate by 360 degrees, and the backflushing device is started after rotation, so that backflushing air is blown into the drying tank again after the master batch remained in the second unidirectional pipe due to the action of the unidirectional pipe, and the residue in the pipe is avoided.
Claims (10)
1. A dry unloader for polyurethane granule, including can letting in hot-blast stoving PBT master batch stoving jar (1) and can send into the feed portion (2) of stoving jar (1) with the PBT master batch, stoving jar (1) are connected with circulation air supply portion (3) through the pipeline, feed portion (2) are connected with stoving jar (1) through the inlet pipe that can one-way unloading, its characterized in that: the utility model provides a circulation air supply portion (3) go out be provided with first unidirectional pipe (4) on the tuber pipe, first unidirectional pipe (4) are connected with the lateral part of stoving jar (1), the air outlet of first unidirectional pipe (4) is linked together with the inner chamber of stoving jar (1), the discharge gate of stoving jar (1) is located the other lateral part of stoving jar (1) be connected with ejection of compact guide pipe (11) on the discharge gate, ejection of compact guide pipe (11) are connected with carousel ware (5) that can rotate relative the opening of ejection of compact guide pipe (11) be provided with second unidirectional pipe (51) on carousel ware (5), when the import of second unidirectional pipe (51) is aligned with the opening of ejection of compact guide pipe (11), master batch that is located in stoving jar (1) leaves stoving jar (1) from second unidirectional pipe (51), when the import of second unidirectional pipe (51) and the crisscross separation of ejection of compact guide pipe (11), the opening of the lateral wall of carousel ware (5) seals the opening of ejection of compact guide pipe (11).
2. The dry blanking apparatus of claim 1, wherein: the first unidirectional tube (4) is a tesla valve tube.
3. The dry blanking apparatus of claim 2, wherein: one end of the first unidirectional pipe (4) is provided with a first air inlet (41) and a second air inlet (42), 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. A dry blanking apparatus as claimed in claim 3, wherein: the circulating 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), the filter (31) is connected with the first air heater through a circulating pipe, an exhaust branch pipe (32) is arranged on the circulating pipe, and a switch valve is arranged on the exhaust branch pipe (32).
5. The dry blanking apparatus of claim 4, wherein: the drying tank (1) and the filter (31) are arranged on the overhaul frame (7), and overhaul openings capable of being opened and closed are formed in the side wall of the drying tank (1).
6. The dry blanking device according to any of the claims 1 to 5, characterized in that: the rotary table device is characterized in that the rotary table device (5) comprises an annular track (50), a rotary table body capable of rotating in the annular track and a discharge pipe (52), the discharge pipe (52) is connected with the annular track (50), the second unidirectional pipe (51) is connected to the rotary table body, when the inlet of the second unidirectional pipe (51) is aligned with the opening of the discharge guide pipe (11), the inlet of the discharge pipe (52) is communicated with the outlet of the second unidirectional pipe (51), and a driver (53) capable of driving the rotary table body to rotate relative to the annular track (50) is arranged on the annular track (50).
7. The dry blanking apparatus of claim 6, wherein: the second unidirectional tube (51) is a tesla valve tube.
8. The dry blanking apparatus of claim 7, wherein: the inlet (511) and the outlet (512) of the second unidirectional pipe (51) are parallel to the length direction of the second unidirectional pipe (51), and the inlet (511) and the outlet (512) of the second unidirectional pipe (51) are rotationally symmetrical.
9. The dry blanking apparatus of claim 6, wherein: the rotary table body is provided with a rotary table body through hole which can lighten the weight of the rotary table body.
10. The dry blanking apparatus of claim 6, wherein: a backflushing device (54) is arranged on the discharging pipe (52), a backflushing port of the backflushing device (54) is communicated with an inlet of the discharging pipe (52), and when an outlet of the second unidirectional pipe (51) is aligned with an opening of the discharging guide pipe (11), the backflushing port of the backflushing device (54) is communicated with the inlet of the second unidirectional 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 CN115615151A (en) | 2023-01-17 |
| CN115615151B true CN115615151B (en) | 2024-02-02 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210513696.2A Active CN115615151B (en) | 2022-05-12 | 2022-05-12 | A dry unloader for polyurethane granule |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115615151B (en) |
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