CN114264142A - Air-source heat pump tea seed drying system - Google Patents
Air-source heat pump tea seed drying system Download PDFInfo
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- CN114264142A CN114264142A CN202111682205.9A CN202111682205A CN114264142A CN 114264142 A CN114264142 A CN 114264142A CN 202111682205 A CN202111682205 A CN 202111682205A CN 114264142 A CN114264142 A CN 114264142A
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- air
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- heat pump
- tea seed
- drying system
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- 241001122767 Theaceae Species 0.000 title claims abstract description 40
- 238000001035 drying Methods 0.000 title claims abstract description 39
- 238000007599 discharging Methods 0.000 claims description 13
- 230000006698 induction Effects 0.000 claims description 6
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 4
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 4
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 4
- 239000011425 bamboo Substances 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 2
- 241001330002 Bambuseae Species 0.000 claims 2
- 230000037431 insertion Effects 0.000 claims 1
- 238000003780 insertion Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 8
- 238000009434 installation Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000007602 hot air drying Methods 0.000 description 3
- 241000526900 Camellia oleifera Species 0.000 description 2
- 244000082204 Phyllostachys viridis Species 0.000 description 2
- 238000003032 molecular docking Methods 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 235000009024 Ceanothus sanguineus Nutrition 0.000 description 1
- 240000003553 Leptospermum scoparium Species 0.000 description 1
- 235000015459 Lycium barbarum Nutrition 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention discloses an air energy heat pump tea seed drying system which comprises a base, wherein a first connecting table and a second connecting table are respectively fixed on the base, a first shaft sleeve is fixedly embedded in the first connecting table, a second shaft sleeve is fixedly embedded in the second connecting table, supporting shafts are rotatably arranged in the first shaft sleeve and the second shaft sleeve respectively, a net barrel is fixed between the first connecting table and the second connecting table, a spiral sheet tightly attached to the inner wall of the net barrel is fixedly wound on each supporting shaft, a motor is fixed on the first connecting table, the motor and the supporting shafts are fixed through a coupler, and an air energy heat pump dryer is fixed on the base. According to the tea seed drying cover, spiral feeding can be achieved through the spiral sheet, tea seeds can be turned, hot air is blown out through the air nozzles, the drying effect is achieved in the surrounding environment of the cover body, the cover body is of a half-and-half splicing structure, the installation and the disassembly are convenient, and the cover body can be operated quickly through the connection mode of the positioning pins.
Description
Technical Field
The invention relates to the technical field of tea seed drying, in particular to an air-source heat pump tea seed drying system.
Background
The tea seeds are divided into seeds of camellia oleifera and seeds of tea trees according to the growth conditions of the tea seeds, namely camellia oleifera seeds and tea seeds, and both can extract oil for eating.
At present, tea seeds need to be cleaned before being processed, the tea seeds are dried after being cleaned, drying equipment for the tea seeds mainly comprises a drying room with an air energy heat pump, the air energy heat pump drying room is that hot water generated by the air energy heat pump is transferred through a pipeline with fins in a machine body, hot air is sent into the drying room through a fan, cold air exchanged in the drying room is recycled to the position of heat transfer conveying of the air energy heat pump, and heat is conveyed in a circulating mode.
In the stoving room, its operation process is mainly directly spread out the tea seed, dries, but this kind of mode causes the stoving of tea seed inhomogeneous easily, simultaneously, pay-off and ejection of compact process, also greatly increased the time of drying.
Disclosure of Invention
The invention aims to provide an air-source heat pump tea seed drying system to solve the problem that tea seeds are not uniformly dried in a drying room.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an air-source heat pump tea seed drying system, includes the base, be fixed with respectively on the base that first link up the platform and the second links up the platform, first link up the bench fixed embedding have first axle sleeve, the second links up the bench fixed embedding and has the second axle sleeve, it is provided with the back shaft all to rotate in the first axle sleeve and the second axle sleeve, first link up the platform and the second links up and is fixed with a net section of thick bamboo between the platform, fixed winding has the flight of hugging closely with a net section of thick bamboo inner wall on the back shaft, first link up the bench and be fixed with the motor, it is fixed that motor and back shaft pass through the shaft coupling, be fixed with air-source heat pump drying-machine on the base.
Preferably, a feeding channel is fixed at the upper end of the net cylinder, and a discharging channel is fixed at the lower end of the net cylinder, so that stable feeding and discharging can be realized.
Preferably, the first connecting table and the second connecting table are both fixed with cover bodies through screws, the cover bodies are respectively penetrated through the feeding channel and the discharging channel in a sliding mode, the cover bodies are communicated with a circulating air inlet of the air energy heat pump dryer through a pipeline, and the hot air drying effect can be guaranteed during hot air conveying.
Preferably, an induced draft fan is fixed on the second connection table, an air pipe is fixed on the induced draft fan, an air inlet of the induced draft fan is communicated with an air outlet of the air energy heat pump dryer, the induced draft fan plays a hot air guiding effect, and the induced draft fan is of a vortex structure.
Preferably, the hood body is provided with a plurality of air nozzles which are communicated and fixed with the air pipe, so that the heat for drying the tea seeds at different conveying positions can be guaranteed.
Preferably, the cover body divide into first cover and second cover, and the both sides of first cover all are fixed with the counterpoint piece, and the both sides of second cover all are fixed with the counterpoint seat that inserts the setting with the counterpoint piece, and the cover body splices half to half and conveniently dismantles the clearance.
Preferably, the alignment seat is provided with a positioning hole, a positioning pin is slidably sleeved in the positioning hole, and the positioning pin is connected with the alignment seat through a spring, so that the stretching and resetting stability of the positioning pin is ensured.
Preferably, be provided with the constant head tank on the counterpoint piece, the setting is inserted with the constant head tank slip, and the ann of two upper and lower half covers of being convenient for is torn open, but manual direct assembly.
Preferably, an induction device is fixedly installed in the cover body, a control device is fixed on the base, the temperature sensor is TB-100, and the humidity sensor is AHT 20.
Preferably, the induction system comprises a temperature sensor and a humidity sensor, the control device comprises a processor, the processor is connected with the motor, the air energy heat pump dryer, the draught fan, the temperature sensor and the humidity sensor through power transmission lines respectively, the processor is controlled by terminal equipment in an operation mode, the motor is of a servo type and can be used in cooperation with the processor, the processor is of an AMD series in type, the air energy heat pump dryer utilizes the inverse Carnot principle, gas Freon is pressurized by the compressor to become high-temperature high-pressure gas (the temperature is up to 100 ℃) and enters the heat exchanger (condenser) on the indoor side, and refrigerant condensation and liquefaction release high-temperature heat to heat air in the drying room.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the tea seed drying device, spiral feeding can be realized through the spiral sheet, so that tea seeds can be turned over, and hot air is blown out by matching with the air nozzles, so that the drying effect is realized in the surrounding environment of the cover body.
2. The cover body adopts a half-and-half splicing structure, so that the installation and the disassembly are convenient, and the cover body can be quickly operated by adopting a connection mode of the positioning pin.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a cross-sectional view of a first engagement platform of the present invention;
FIG. 3 is a schematic side view of the cage splice of the present invention;
fig. 4 is a schematic diagram of tea seed drying control according to the present invention.
In the figure: 1. a base; 11. a first docking station; 12. a second docking station; 13. a first bushing; 14. a second shaft sleeve; 15. a support shaft; 16. a net drum; 17. a spiral sheet; 18. a motor; 19. an air energy heat pump dryer; 2. a feed channel; 21. a discharge channel; 22. a cover body; 3. an induced draft fan; 31. an air duct; 32. a tuyere; 4. a positioning block; 41. a positioning seat; 42. positioning holes; 43. positioning pins; 44. a spring; 45. positioning a groove; 5. an induction device; 51. and a control device.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example I
Referring to fig. 1 and 2, an air-source heat pump tea seed drying system includes a base 1, a first connecting table 11 and a second connecting table 12 are respectively fixed on the base 1, a first shaft sleeve 13 is fixed on the first connecting table 11, a second shaft sleeve 14 is fixed on the second connecting table 12, support shafts 15 are rotatably arranged in the first shaft sleeve 13 and the second shaft sleeve 14, a net barrel 16 is fixed between the first connecting table 11 and the second connecting table 12, a spiral sheet 17 tightly attached to the inner wall of the net barrel 16 is fixedly wound on the support shaft 15, a motor 18 is fixed on the first connecting table 11, the motor 18 and the support shaft 15 are fixed through a coupler, and an air-source heat pump dryer 19 is fixed on the base 1.
Referring to fig. 1, a feeding channel 2 is fixed at the upper end of the net cylinder 16, and a discharging channel 21 is fixed at the lower end of the net cylinder 16, so that stable feeding and discharging can be realized.
Referring to fig. 1, a cover body 22 is fixed on the first connecting table 11 and the second connecting table 12 through screws, the cover body 22 is slidably penetrated through the feeding channel 2 and the discharging channel 21, and the cover body 22 is communicated with a circulating air inlet of the air energy heat pump dryer 19 through a pipeline, so that a hot air drying effect can be ensured during hot air delivery.
This embodiment is used: the cover body 22 can avoid the hot air from running off too fast, so that the heat air flow can frequently flow in the cover body 22, and the drying effect on the tea seeds is improved.
Example II
Referring to fig. 1 and 2, in this embodiment, as further described in embodiment 1, an air-source heat pump tea seed drying system includes a base 1, a first connecting table 11 and a second connecting table 12 are respectively fixed on the base 1, a first sleeve 13 is fixed on the first connecting table 11, a second sleeve 14 is fixed on the second connecting table 12, support shafts 15 are rotatably arranged in the first sleeve 13 and the second sleeve 14, a net barrel 16 is fixed between the first connecting table 11 and the second connecting table 12, a spiral sheet 17 tightly attached to an inner wall of the net barrel 16 is fixedly wound on the support shaft 15, a motor 18 is fixed on the first connecting table 11, the motor 18 and the support shaft 15 are fixed through a shaft coupling, and an air-source heat pump dryer 19 is fixed on the base 1.
Referring to fig. 1, an induced draft fan 3 is fixed on the second connecting table 12, an air pipe 31 is fixed on the induced draft fan 3, an air inlet of the induced draft fan 3 is communicated with an air outlet of the air energy heat pump dryer 19, the induced draft fan 3 plays a role of guiding hot air, and the induced draft fan 3 is of a vortex structure.
Referring to fig. 1, a plurality of air nozzles 32 are provided on the cover 22, the air nozzles 32 are connected and fixed with the air pipe 31, and the heat for drying tea seeds at different delivery positions can be ensured by the plurality of air nozzles 32.
This embodiment is used: the induced draft fan 3 can send the heat generated by the air energy heat pump dryer into the cover body 22 through air flow.
Example III
Referring to fig. 1 and 2, in this embodiment, as further described with respect to other embodiments, an air energy heat pump tea seed drying system includes a base 1, a first connecting table 11 and a second connecting table 12 are respectively fixed on the base 1, a first sleeve 13 is fixed on the first connecting table 11, a second sleeve 14 is fixed on the second connecting table 12, support shafts 15 are rotatably arranged in the first sleeve 13 and the second sleeve 14, a net barrel 16 is fixed between the first connecting table 11 and the second connecting table 12, a spiral sheet 17 tightly attached to an inner wall of the net barrel 16 is fixedly wound on the support shaft 15, a motor 18 is fixed on the first connecting table 11, the motor 18 is fixed to the support shaft 15 through a shaft coupling, and an air energy heat pump dryer 19 is fixed on the base 1.
Referring to fig. 1, a feeding channel 2 is fixed at the upper end of the net cylinder 16, and a discharging channel 21 is fixed at the lower end of the net cylinder 16, so that stable feeding and discharging can be realized.
Referring to fig. 1, a cover body 22 is fixed on the first connecting table 11 and the second connecting table 12 through screws, the cover body 22 is slidably penetrated through the feeding channel 2 and the discharging channel 21, and the cover body 22 is communicated with a circulating air inlet of the air energy heat pump dryer 19 through a pipeline, so that a hot air drying effect can be ensured during hot air delivery.
Referring to fig. 1, an induced draft fan 3 is fixed on the second connecting table 12, an air pipe 31 is fixed on the induced draft fan 3, an air inlet of the induced draft fan 3 is communicated with an air outlet of the air energy heat pump dryer 19, the induced draft fan 3 plays a role of guiding hot air, and the induced draft fan 3 is of a vortex structure.
Referring to fig. 1, a plurality of air nozzles 32 are provided on the cover 22, the air nozzles 32 are connected and fixed with the air pipe 31, and the heat for drying tea seeds at different delivery positions can be ensured by the plurality of air nozzles 32.
Referring to fig. 1 and 3, the cover body 22 is divided into an upper cover half and a lower cover half, the alignment block 4 is fixed on both sides of the upper cover half, the alignment seat 41 inserted into the alignment block 4 is fixed on both sides of the lower cover half, and the cover body 22 is spliced in half to facilitate disassembly and cleaning.
Referring to fig. 1 and 3, a positioning hole 42 is formed in the alignment seat 41, a positioning pin 43 is slidably sleeved in the positioning hole 42, and the positioning pin 43 is connected with the alignment seat 41 through a spring 44, so as to ensure the stable extension and retraction of the positioning pin 43.
Referring to fig. 1 and 3, the positioning block 4 is provided with a positioning slot 45, and the positioning pin 43 and the positioning slot 45 are slidably inserted into each other, so that the upper half cover and the lower half cover can be conveniently mounted and dismounted, and can be directly assembled manually.
Referring to fig. 1 and 4, a sensing device 5 is fixedly installed in the cover 22, a control device 51 is fixed on the base 1, the temperature sensor is TB-100, and the humidity sensor is AHT 20.
Referring to fig. 1 and 4, the sensing device 5 includes a temperature sensor and a humidity sensor, the control device 51 includes a processor, the processor is respectively connected with the motor 18 through a power transmission line, the air energy heat pump dryer 19, the induced draft fan 3, the temperature sensor and the humidity sensor are connected, the processor adopts terminal equipment operation control, the model of the motor 18 is a servo type, the processor can be used in combination with the processor, the model of the processor is an AMD series, the air energy heat pump dryer 19 utilizes the inverse carnot principle, gas freon is pressurized by a compressor to become high-temperature high-pressure gas (the temperature is up to 100 ℃), the high-temperature high-pressure gas enters a heat exchanger (a condenser) at the indoor side, and refrigerant is condensed and liquefied to release high-temperature heat to heat air in a drying room.
This embodiment is used: when tea seeds are required to be dried, the motor 18 is started firstly, the motor 18 drives the supporting shaft 15 to rotate, spiral feeding can be achieved through the spiral sheet 17, meanwhile, the induced draft fan 3 and the air source heat pump dryer 19 are started, and hot air can be sent into the cover body 22 through the air nozzle 32.
Tea seeds after being washed and drained are sent into the net barrel 16 through the feeding channel 2, and are rolled through continuous feeding of the spiral piece 17, so that the tea seeds can be in all-round contact with hot air, drying is achieved, and then discharging is achieved through the discharging channel 21.
When the cover body 22 needs to be cleaned, the cover body 22 and the two connecting screws of the connecting table are detached, then the positioning pin 43 is pulled, the positioning pin 43 is separated from the positioning groove 45 through the stretching effect of the spring 44, the alignment block 4 is separated from the alignment seat 41, and the separation of the cover body 22 is completed.
The temperature sensor and the humidity sensor can detect the temperature and the humidity in the cover body 22, and the processor performs feedback processing, so that the wind speed of the draught fan 3 and the rotating feeding speed of the motor 18 are adjusted, and the terminal equipment can be remotely adjusted.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides an air energy heat pump tea seed drying system, includes base (1), its characterized in that: it links up platform (12) to be fixed with first linking up platform (11) and second on base (1) respectively, first linking up fixed embedding on platform (11) has first axle sleeve (13), the second links up fixed embedding on platform (12) and has second axle sleeve (14), all rotate in first axle sleeve (13) and second axle sleeve (14) and be provided with back shaft (15), first linking up platform (11) and second and link up and be fixed with net section of thick bamboo (16) between platform (12), fixed winding has spiral piece (17) of hugging closely with net section of thick bamboo (16) inner wall on back shaft (15), first linking up and being fixed with motor (18) on platform (11), motor (18) are fixed through the shaft coupling with back shaft (15), be fixed with air ability heat pump drying-machine (19) on base (1).
2. The air-source heat pump tea seed drying system of claim 1, wherein: the feeding channel (2) is fixed at the upper end of the net cylinder (16), and the discharging channel (21) is fixed at the lower end of the net cylinder (16).
3. The air-source heat pump tea seed drying system of claim 2, wherein: the first connection table (11) and the second connection table (12) are both fixed with cover bodies (22) through screws, the cover bodies (22) are respectively penetrated through the feeding channel (2) and the discharging channel (21) in a sliding mode, and the cover bodies (22) are communicated with a circulating air inlet of the air energy heat pump dryer (19) through a pipeline.
4. The air-source heat pump tea seed drying system of claim 3, wherein: and an induced draft fan (3) is fixed on the second connecting table (12), an air pipe (31) is fixed on the induced draft fan (3), and an air inlet of the induced draft fan (3) is communicated with an air outlet of the air energy heat pump dryer (19).
5. The air-source heat pump tea seed drying system of claim 4, wherein: an air nozzle (32) penetrates through the cover body (22), and the air nozzle (32) is communicated and fixed with the air pipe (31).
6. The air-source heat pump tea seed drying system of claim 5, wherein: the cover body (22) is divided into an upper half cover and a lower half cover, the two sides of the upper half cover are respectively fixed with a positioning block (4), and the two sides of the lower half cover are respectively fixed with a positioning seat (41) inserted into the positioning blocks (4).
7. The air-source heat pump tea seed drying system of claim 6, wherein: the positioning seat (41) is provided with a positioning hole (42), a positioning pin (43) is sleeved in the positioning hole (42) in a sliding mode, and the positioning pin (43) is connected with the positioning seat (41) through a spring (44).
8. The air-source heat pump tea seed drying system of claim 7, wherein: the positioning block (4) is provided with a positioning groove (45), and the positioning pin (43) and the positioning groove (45) are arranged in a sliding insertion mode.
9. The air-source heat pump tea seed drying system of claim 8, wherein: an induction device (5) is fixedly installed in the cover body (22), and a control device (51) is fixed on the base (1).
10. The air-source heat pump tea seed drying system of claim 9, wherein: the induction system is characterized in that the induction device (5) comprises a temperature sensor and a humidity sensor, the control device (51) comprises a processor, the processor is connected with the motor (18), the air energy heat pump dryer (19), the draught fan (3), the temperature sensor and the humidity sensor through power transmission lines respectively, and the processor is controlled by terminal equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111682205.9A CN114264142A (en) | 2021-12-28 | 2021-12-28 | Air-source heat pump tea seed drying system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111682205.9A CN114264142A (en) | 2021-12-28 | 2021-12-28 | Air-source heat pump tea seed drying system |
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| CN114264142A true CN114264142A (en) | 2022-04-01 |
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| CN202111682205.9A Pending CN114264142A (en) | 2021-12-28 | 2021-12-28 | Air-source heat pump tea seed drying system |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008039350A (en) * | 2006-08-10 | 2008-02-21 | Kokubun Nojo Kk | Dryer |
| KR20180010413A (en) * | 2016-07-21 | 2018-01-31 | 김현경 | Roatary type Powder Drying Apparatus |
| CN207472002U (en) * | 2017-11-22 | 2018-06-08 | 深圳市启彦新能源有限公司 | A kind of air energy particle drying system |
| CN207751293U (en) * | 2017-11-30 | 2018-08-21 | 盈江县华康高山生态茶业有限责任公司 | Novel tea dries equipment |
| CN208653177U (en) * | 2018-05-15 | 2019-03-26 | 龙川绿油农业发展有限公司 | A kind of ribes processing unit (plant) |
| CN112161465A (en) * | 2020-10-09 | 2021-01-01 | 衡山食为天食用油有限公司 | Low temperature drying equipment of camellia oil production usefulness |
| CN212987865U (en) * | 2020-08-19 | 2021-04-16 | 常德市天地农耕发展有限公司 | Tea seed baking equipment for tea oil production |
| CN214691726U (en) * | 2021-04-25 | 2021-11-12 | 江苏宇东塑业有限公司 | Plastics color masterbatch conveyer |
-
2021
- 2021-12-28 CN CN202111682205.9A patent/CN114264142A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008039350A (en) * | 2006-08-10 | 2008-02-21 | Kokubun Nojo Kk | Dryer |
| KR20180010413A (en) * | 2016-07-21 | 2018-01-31 | 김현경 | Roatary type Powder Drying Apparatus |
| CN207472002U (en) * | 2017-11-22 | 2018-06-08 | 深圳市启彦新能源有限公司 | A kind of air energy particle drying system |
| CN207751293U (en) * | 2017-11-30 | 2018-08-21 | 盈江县华康高山生态茶业有限责任公司 | Novel tea dries equipment |
| CN208653177U (en) * | 2018-05-15 | 2019-03-26 | 龙川绿油农业发展有限公司 | A kind of ribes processing unit (plant) |
| CN212987865U (en) * | 2020-08-19 | 2021-04-16 | 常德市天地农耕发展有限公司 | Tea seed baking equipment for tea oil production |
| CN112161465A (en) * | 2020-10-09 | 2021-01-01 | 衡山食为天食用油有限公司 | Low temperature drying equipment of camellia oil production usefulness |
| CN214691726U (en) * | 2021-04-25 | 2021-11-12 | 江苏宇东塑业有限公司 | Plastics color masterbatch conveyer |
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Application publication date: 20220401 |