CN213695561U - Black tea system that withers - Google Patents
Black tea system that withers Download PDFInfo
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- CN213695561U CN213695561U CN202022331609.0U CN202022331609U CN213695561U CN 213695561 U CN213695561 U CN 213695561U CN 202022331609 U CN202022331609 U CN 202022331609U CN 213695561 U CN213695561 U CN 213695561U
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Abstract
A black tea withering system comprises a conveying device, a fresh leaf freezing chamber and an intelligent withering machine, wherein the intelligent withering machine comprises a plurality of withering troughs, each withering trough comprises a leaf turning device, a temperature sensor, a weighing device, a leaf spreading net, an air volume regulating valve, an air blower, a heating device and a controller, the weighing device is located below the leaf spreading net, and the controller is connected with the leaf turning device, the weighing device, the air volume regulating valve and the air blower. The utility model discloses a low temperature refrigeration technique improves withering efficiency and quality. The fresh leaves can be ventilated by arranging the leaf spreading net; the blower can blow away the evaporated water vapor in time; the leaf spreading device is arranged to ensure that the thickness of the spread leaves is uniform and consistent and the ventilation of the leaf layer is good; the weighing device can accurately control the weight of the fresh leaves, and a better withering effect is achieved. The utility model provides high black tea efficiency of withering is favorable to keeping the even and stable of black tea quality of withering.
Description
Technical Field
The utility model relates to an agricultural machine field especially relates to a novel black tea system that withers.
Background
The black tea is a fully fermented tea which is prepared by using fresh tea tree leaves as raw materials and processing the fresh tea tree leaves through the processes of withering, rolling, fermentation and the like. In the withering process, fresh leaves are spread thinly under certain conditions, so that a proper amount of water is uniformly dissipated, the cell tension is reduced, and the leaf quality is softened. Along with the loss of water, the permeability of cell membranes is enhanced, the enzyme activity is enhanced, and the change of content substances is caused, thereby being beneficial to the formation of the aroma and the taste of the tea. Withering has the physical dehydration function and the chemical change process of the contained substances, and lays a good foundation for the enzymatic oxidation in the fermentation process. Withering is a basic process in the processing process of black tea, and the withering degree has great relation to the quality of subsequent processing and tea making of the black tea.
At present, fresh leaves are withered mainly by adopting indoor withering and sunlight withering methods, although the two withering methods can effectively keep the fragrance of the tea leaves and reduce the labor intensity, the withering efficiency is low, manual judgment is still relied on, and intellectualization is not realized.
SUMMERY OF THE UTILITY MODEL
In view of this, there is a need to address the deficiencies in the prior art by providing a black tea withering system.
A black tea withering system comprises a conveying device, a fresh leaf freezing chamber and an intelligent withering machine, wherein the intelligent withering machine comprises a plurality of withering troughs, each withering trough comprises a leaf turning device, a temperature sensor, a weighing device, a leaf spreading net, an air volume regulating valve, an air blower, a heating device and a controller, the weighing device is located below the leaf spreading net, and the controller is connected with the leaf turning device, the weighing device, the air volume regulating valve and the air blower.
Further, the fresh tea leaf freezing chamber comprises a chain plate type conveying structure, and tea leaves are transferred layer by layer on the chain plate type conveying structure.
Further, the fresh leaf freezer still includes box, feeder hopper, observation window, temperature sensor, compressor and controller, the below of conveyor discharge gate is located to the feeder hopper to chain slat type transport structure top is located to the feeder hopper, chain slat type transport structure in the fresh leaf freezer comprises the multiunit link joint, and the upper and lower two-layer of every group link joint is the loop configuration, and rotates opposite direction.
Furthermore, the box body of the fresh leaf freezing chamber is a cuboid composed of a thick steel plate and angle iron, a heat insulation layer is arranged on the inner side of the box body, and the chain plate is made of 304 stainless steel.
Further, conveyor is equipped with the conveyer belt, the material of conveyer belt is PU.
Further, the intelligent withering machine further comprises a blanking device; the blanking device comprises a blanking hopper, a conveyor belt, a shell and a driving device, wherein the blanking hopper and the conveyor belt are arranged on the shell, the blanking hopper is arranged below the discharge position of the conveyor belt, and the driving device drives the shell to move so that the blanking hopper can move to the upper part of each withering trough.
Furthermore, the shell is provided with guide rails on two sides of the conveyor belt, and the conveyor belt can reciprocate along with the guide rails.
Furthermore, the leaf turning device is arranged above the leaf spreading net, and the leaf spreading net is of a metal net structure.
Further, the temperature sensor is a far infrared device.
Further, the heating device, the blower and the air volume adjusting valve are connected in sequence.
The utility model relates to a novel black tea system of withering's beneficial effect lies in: the low-temperature freezing technology is adopted, the fresh tea tree leaves are frozen and then withered indoors, the cell membrane permeability can be increased, and the withering efficiency and quality are improved. The arrangement of the leaf spreading net can ensure that the fresh leaves are ventilated and the water is uniformly dissipated; the blower can blow away the evaporated water vapor in time; the leaf spreading device is arranged to ensure that the thickness of the spread leaves is uniform and consistent and the ventilation of the leaf layer is good; the weighing device can accurately control the weight of the fresh leaves, and a better withering effect is achieved. The utility model provides high black tea efficiency of withering is favorable to keeping the even and stable of black tea quality of withering.
Drawings
Fig. 1 is a schematic structural diagram of the black tea withering system of the present invention.
Fig. 2 is the structure schematic diagram of the intelligent withering machine of the black tea withering system of the utility model.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments.
As shown in fig. 1-2, the utility model provides a black tea withering system, which comprises a conveying device 10, a fresh leaf freezing chamber 20 and an intelligent withering machine. The conveying device 10 is arranged at the front side and the rear side of the fresh leaf freezing chamber, and the conveying device 10 transfers the unprocessed tea leaves to the fresh leaf freezing chamber 20. Fresh leaf freezer 20 adopts chain slat type transport structure 22, and tealeaves carry out the layer upon layer transition on chain slat type transport structure 22 to fresh leaf freezer 20 still is equipped with temperature sensor 23, observation window 24, compressor 25 and controller 26, controller 26 control compressor 25 work, and temperature sensor 23 feeds back the temperature information that detects to controller 26 on. The intelligent withering machine comprises a plurality of withering troughs 30, wherein each withering trough comprises a leaf turning device 31, a temperature sensor 32, a weighing device 33, a leaf spreading net 34, an air volume adjusting valve 35, an air blower 36, a heating device 37 and a controller 38.
The fresh leaf freezing chamber 20 further comprises a box body, a feed hopper 21, an observation window 23, a temperature sensor 24, a compressor 25 and a controller 26. The box body of the fresh leaf freezing chamber is a cuboid composed of a thick steel plate and angle iron, and a heat insulation layer is arranged on the inner side of the box body. Feeder hopper 21 locates the below of conveyor 10 discharge gate, chain slat type conveyer belt 22's material is 304 stainless steel, and chain slat type conveying structure 22 comprises the multiunit link joint in the fresh leaf freezer 20, and the upper and lower two-layer of every group link joint is the loop configuration, and rotates opposite direction, and feeder hopper 21 locates chain slat type conveyer belt 22 top.
The intelligent withering machine comprises a blanking device 40 and a plurality of groups of withering troughs 30 which are distributed side by side; the feeding device 40 comprises a feeding hopper 41, a conveyor belt 42, a housing (not shown) and a driving device (not shown), wherein the feeding hopper 41 and the conveyor belt 42 are mounted on the housing, the feeding hopper 42 is disposed below the discharging position of the conveyor belt 42, and the driving device drives the housing to move, so that the feeding hopper 41 can move above each withering trough 30; the housing is provided with guide rails on both sides of the conveyor belt 42, and the conveyor belt 42 reciprocates along with the guide rails. Each set of the withering troughs comprises a leaf turning device 31, a temperature sensor 32, a weighing device 33, a leaf spreading net 34, an air volume adjusting valve 35, a blower 36, a heating device 37 and a controller 38. The leaf turning device 31 is arranged above the leaf spreading net 34, and two ends of the leaf turning device 31 are provided with a fixed knob and a slide rail which can move up and down and back and forth, namely the height and the advancing speed of the leaf turning device can be adjusted. The leaf turning device turns the leaves once every half hour. The temperature sensor 32 is a far infrared device. Weighing devices 33 are located below the leaf spreading net 34 and weighing points are located in the middle and at the ends of the withering trough 30. The leaf spreading net 34 is a metal net structure and is arranged on the uppermost layer of the trough body of the withering trough 30. The heating device 37, the blower 36 and the air volume adjusting valve 35 are connected in sequence. The controller 38 is connected with the leaf turning device 31, the weighing device 33, the air volume adjusting valve 35 and the blower 36.
In the actual operation process, a cooling system switch on the controller 26 is firstly turned on, the fresh leaf freezing compressor 25 is started, and the whole freezing chamber is pre-cooled in advance to reduce the temperature to-15 ℃. Fresh tea tree leaves are conveyed to a fresh leaf freezing chamber feed hopper 21 through a conveying device 10 and conveyed by a chain plate type conveying belt 22 to be pre-frozen, and the freezing state of the fresh leaves can be observed in real time through an observation window 23 in the process. The frozen fresh leaves are partially transported out of the bottom chain conveyor 22 of the freezing chamber, into a hopper 41 and then to the withering trough 30. The height of the leaf turning device 31 is set in advance, and the pre-frozen fresh leaves are spread on the leaf spreading net 34. When the pre-frozen fresh leaves reach the leaf spreading net 34, the blower 36 and the weighing device 33 are started to reach the set weight of the spread leaves, and the spread leaves in the withering trough are stopped. The lower hopper 41 moves to the upper part of the next withering trough 30, and the leaf turning device 31 in the next withering trough 30 is started to spread leaves. The leaf turning device 31 can turn leaves once every half hour from the discharging hopper 41 to the direction of the blower.
The above-described embodiments only represent one embodiment of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, many variations and modifications can be made without departing from the spirit of the invention, and these are within the scope of the invention. Therefore, the protection scope of the utility model patent should be subject to the appended claims.
Claims (10)
1. A black tea withering system comprises a conveying device, a fresh leaf freezing chamber and an intelligent withering machine, wherein the intelligent withering machine comprises a plurality of withering troughs, each withering trough comprises a leaf turning device, a temperature sensor, a weighing device, a leaf spreading net, an air volume regulating valve, an air blower, a heating device and a controller, the weighing device is located below the leaf spreading net, and the controller is connected with the leaf turning device, the weighing device, the air volume regulating valve and the air blower.
2. A black tea withering system according to claim 1 wherein: the fresh tea leaf freezing chamber comprises a chain plate type conveying structure, and tea leaves are transferred layer by layer on the chain plate type conveying structure.
3. A black tea withering system according to claim 2 wherein: fresh leaf freezer still includes box, feeder hopper, observation window, temperature sensor, compressor and controller, the below of conveyor discharge gate is located to the feeder hopper to chain slat type transport structure top is located to the feeder hopper, chain slat type transport structure in the fresh leaf freezer comprises the multiunit link joint, and two-layer upper and lower of every group link joint is the loop configuration, and rotates opposite direction.
4. A black tea withering system according to claim 3 wherein: the box of fresh leaf freezer is the cuboid that comprises steel plate and angle bar, and the inboard is equipped with the heat preservation, the material of link joint is 304 stainless steel.
5. A black tea withering system according to claim 1 wherein: the conveying device is provided with a conveying belt, and the conveying belt is made of PU.
6. A black tea withering system according to claim 1 wherein: the intelligent withering machine further comprises a blanking device; the blanking device comprises a blanking hopper, a conveyor belt, a shell and a driving device, wherein the blanking hopper and the conveyor belt are arranged on the shell, the blanking hopper is arranged below the discharge position of the conveyor belt, and the driving device drives the shell to move so that the blanking hopper can move to the upper part of each withering trough.
7. A black tea withering system according to claim 6 wherein: the shell is provided with guide rails on two sides of the conveyor belt, and the conveyor belt can reciprocate along with the guide rails.
8. A black tea withering system according to claim 1 wherein: the leaf turning device is arranged above the leaf spreading net, and the leaf spreading net is of a metal net structure.
9. A black tea withering system according to claim 1 wherein: the temperature sensor is a far infrared device.
10. A black tea withering system according to claim 1 wherein: the heating device, the air blower and the air volume adjusting valve are connected in sequence.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022331609.0U CN213695561U (en) | 2020-10-19 | 2020-10-19 | Black tea system that withers |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022331609.0U CN213695561U (en) | 2020-10-19 | 2020-10-19 | Black tea system that withers |
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| CN213695561U true CN213695561U (en) | 2021-07-16 |
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| CN202022331609.0U Active CN213695561U (en) | 2020-10-19 | 2020-10-19 | Black tea system that withers |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114946967A (en) * | 2022-05-24 | 2022-08-30 | 华中农业大学 | Multilayer circulating type intelligent withering equipment and withering method |
| CN115868552A (en) * | 2022-11-14 | 2023-03-31 | 会同瑞春茶业有限公司 | Brick tea making process capable of reducing fluorine content |
-
2020
- 2020-10-19 CN CN202022331609.0U patent/CN213695561U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114946967A (en) * | 2022-05-24 | 2022-08-30 | 华中农业大学 | Multilayer circulating type intelligent withering equipment and withering method |
| CN114946967B (en) * | 2022-05-24 | 2024-05-31 | 华中农业大学 | Multilayer circulating intelligent withering equipment and withering method |
| CN115868552A (en) * | 2022-11-14 | 2023-03-31 | 会同瑞春茶业有限公司 | Brick tea making process capable of reducing fluorine content |
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