Continuous tea leaf drying and aroma improving device
By combining vacuum drying and atmospheric pressure drying in a circulating drying process and using a drum design, the problem of charring caused by oxygen during tea roasting is solved, achieving rapid dehydration and preservation of aroma and color, thus improving tea quality.
Patent Information
- Application Number
- CN202521061372.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-27
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-05-27
AI Technical Summary
The current tea roasting and aroma enhancement process involves oxygen, which leads to charring and the production of a burnt flavor, affecting the quality of the tea.
The vacuum drying of drying component two and the normal pressure drying of drying component one are used in an intermittent combination to form a repeated cycle of normal pressure-negative pressure-normal pressure drying. By using vacuum to isolate oxygen, combined with the anti-slip ribs and frying plate design inside the drum, the moisture inside the tea leaves is migrated to the surface layer and evaporates quickly.
It effectively reduces the scorching and burnt taste of tea leaves, while preserving the color, aroma, flavor, and nutrients of the tea. The tea has a fragrant and high aroma, a bright green color, and improves the quality of the tea.
Smart Images
Figure CN223909924U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to tea processing technical field, specifically a continuous tea drying and aroma improving device. BACKGROUND
[0002] In order to make the aroma of tea more concentrated and rich, usually there is a production process of improving aroma, and the means usually adopted by tea aroma improving is baking, which aims at evaporating the moisture in tea, and at the same time, making the aromatic substances in the inside of tea leaves transform or volatilize under the conditions of heating and drying, so as to cause aroma type transformation or make the aroma more rich.
[0003] During the process of tea baking and aroma improving, a series of quality chemical reactions such as Maillard reaction and caramelization reaction occur, and oxygen is an indispensable factor in the progress of these reactions, and currently, the baking and aroma improving exist the phenomenon that the quality of tea is reduced due to the defects of process, such as tea carbonization and high fire taste. UTILITY MODEL CONTENT
[0004] Therefore, the technical problem to be solved by the utility model lies in providing a continuous tea drying and aroma improving device, the vacuum drying of the drying assembly two can isolate oxygen in vacuum, so as to effectively reduce the generation of tea carbonization and fire taste, and through the intermittent cooperation of the vacuum drying of the drying assembly two and the normal pressure drying of the drying assembly one, the drying is carried out in the mode of repeated circulation of normal pressure-negative pressure-normal pressure, which is beneficial to the migration of the internal moisture of tea to the surface layer, makes the moisture more easily vaporize and evaporate in time, speeds up the dehydration of tea, so as to realize color and aroma preservation, and is beneficial to the preservation of color, aroma, taste and nutritional ingredients of food.
[0005] In order to solve the above technical problem, the utility model provides the following technical scheme:
[0006] A continuous tea drying and aroma improving device, which comprises a support and a drying cylinder arranged on the support, the inside of the drying cylinder is provided with a roller corresponding to the axis of the drying cylinder, and the two ends of the drying cylinder in the axial direction are respectively connected with a drying assembly one and a drying assembly two, and the drying assembly one and the drying assembly two are sequentially matched to repeatedly and circularly dry the tea in the roller.
[0007] Furthermore, the roller barrel is rolled from a steel plate with a through hole, and the inside of the roller corresponds to the drying cylinder.
[0008] Furthermore, the drying assembly one comprises a hot blast furnace and an air blower, the hot blast furnace is connected with the drying cylinder through the air blower, and the hot blast of the hot blast furnace enters the drying cylinder under the action of the air blower.
[0009] Further, the drying assembly two comprises a heat pump compressor, a cooler, a vacuum pump and a heating plate arranged on the inner side wall of the drying cylinder, one end of the heating plate is connected to the output end of the cooler through the heat pump compressor, the other end of the heating plate is connected to the input end of the cooler through an expansion valve, and the vacuum pump is communicated with the inside of the drying cylinder.
[0010] Further, the drying assembly two comprises a heat pump compressor, a cooler, a vacuum pump and a heating plate arranged on the inner side wall of the drying cylinder, one end of the heating plate is connected to the output end of the cooler through the heat pump compressor, the other end of the heating plate is connected to the input end of the cooler through an expansion valve, and the vacuum pump is communicated with the inside of the drying cylinder.
[0011] The inside of the drying cylinder is provided with a support rod corresponding to the driving wheel, and the two ends of the support rod are connected with the driving wheel through universal ball hinges.
[0012] Further, the drying assembly two comprises a heat pump compressor, a cooler, a vacuum pump and a heating plate arranged on the inner side wall of the drying cylinder, one end of the heating plate is connected to the output end of the cooler through the heat pump compressor, the other end of the heating plate is connected to the input end of the cooler through an expansion valve, and the vacuum pump is communicated with the inside of the drying cylinder.
[0013] The technical scheme of the utility model has the following beneficial technical effects:
[0014] 1、The utility model relates to a continuous tea drying and aroma improving device, which is intermittent cooperation of vacuum drying of the drying assembly two and normal pressure drying of the drying assembly one, forms a drying mode of normal pressure - negative pressure - normal pressure repeated circulation, is favorable for tea internal moisture to migrate to the surface layer, makes moisture more easy to vaporize and evaporate in time, prevents dry tea from producing water smothering smell, tea aroma is more fragrant and high, color is emerald green and lustrous, simultaneously high efficiency, short time consumption, accelerates tea dehydration, realizes color and aroma preservation, is favorable for preserving food color, aroma, taste and nutrient components.
[0015] 2、The utility model relates to a continuous tea drying and aroma improving device, which can isolate oxygen through vacuum drying of the drying assembly two, has low drying temperature, small damage to tea nutrient components, is not easy to cause tea oxidation and metamorphic change, effectively reduces tea scorching and the generation of fire smell, and improves tea quality.
[0016] 3、The utility model relates to a continuous tea drying and aroma improving device, which is intermittent cooperation of vacuum drying of the drying assembly two and normal pressure drying of the drying assembly one, forms a drying mode of normal pressure - negative pressure - normal pressure repeated circulation, is favorable for tea internal moisture to migrate to the surface layer, makes moisture more easy to vaporize and evaporate in time, prevents dry tea from producing water smothering smell, tea aroma is more fragrant and high, color is emerald green and lustrous, simultaneously high efficiency, short time consumption, accelerates tea dehydration, realizes color and aroma preservation, is favorable for preserving food color, aroma, taste and nutrient components. DRAWINGS
[0017] Figure 1 This is a schematic diagram of the structure of a continuous tea drying and aroma-enhancing device according to the present invention.
[0018] Figure 2 This is a schematic diagram of the drum of a continuous tea drying and aroma-enhancing device according to this utility model;
[0019] Figure 3 This is a schematic diagram of the rotating component of a continuous tea drying and aroma-enhancing device according to the present invention.
[0020] Figure 4 This is a schematic diagram of the inside of the drum of a continuous tea drying and aroma-enhancing device according to this utility model;
[0021] Figure 5 This is a schematic diagram of the second drying component of a continuous tea drying and aroma-enhancing device according to this utility model.
[0022] The reference numerals in the figure are as follows: 100, support; 200, drying drum; 1, hot air furnace; 2, induced draft fan; 3, drying assembly two; 4, drum; 41, drive shaft; 42, short shaft; 5, support rod; 6, fixed wheel; 7, moving wheel; 8, universal ball joint; 9, anti-slip rib; 10, stir-frying plate; 11, heating plate; 12, vacuum pump; 13, cooler; 14, heat pump compressor; 15, expansion valve. Detailed Implementation Example 1
[0023] This embodiment describes a continuous tea drying and aroma-enhancing device, such as... Figure 1 As shown, the device includes a support 100 and a drying cylinder 200 mounted on the support 100. The drying cylinder 200 is a sealed container with a pressure-bearing inner liner. Inside the drying cylinder 200, there is a roller 4 that corresponds to the axis of the drying cylinder 200. The drying cylinder 200 is respectively provided with a feed bin and a discharge bin corresponding to the feed inlet on the roller 4. The feed bin, discharge bin, and feed inlet are all sealed. The cylinder body of the roller 4 is rolled from a steel plate with through holes. The inside of the roller 4 is connected to the drying cylinder 200 through the through holes, forming a relatively sealed space between the roller 4 and the drying cylinder 200. Figure 4 The inner circumferential wall of the roller 4 is provided with uniformly arranged anti-slip ribs 9. The angle of the anti-slip ribs 9 is along the tangential direction and consistent with the rotation direction of the roller. The inner sidewalls at both ends of the roller 4 are provided with uniformly arranged frying plates 10. The frying plates 10 are bent and extended radially along the inner sidewalls at the ends of the roller 4. As the tea leaves rotate with the roller 4, the frying plates 10 at both ends of the roller 4 automatically squeeze the tea leaves, making the tea leaves more compact and better shaped. The anti-slip ribs 9 can prevent the tea leaves from sliding and rubbing against the inner wall of the roller 4, causing the tea leaves to turn over and form a material curtain, so that the tea leaves can fully contact the hot air and prevent the tea leaves from discoloring.
[0024] The two ends of the drying cylinder 200 are connected with drying assembly one and drying assembly two 3, respectively, which are matched in sequence to repeatedly circulate the tea in the roller 4, wherein the drying assembly one includes a hot blast stove 1 and an air blower 2, the hot blast stove 1 is connected with the drying cylinder 200 through the air blower 2, the hot blast of the hot blast stove 1 enters the drying cylinder 200 under the action of the air blower 2, the hot blast of the hot blast stove 1 is introduced into the drying cylinder 200 under the action of the air blower 2 and enters the roller 4 through the through hole, under the rotation of the roller 4, the tea is thrown up, so that the dried tea is fully mixed with the hot blast, and the tea in the roller 4 is dried under normal pressure.
[0025] In combination Figure 5 , the drying assembly two 3 includes a heat pump compressor 14, a cooler 13, a vacuum pump 12 and a heating plate 11 arranged on the inner side wall of the drying cylinder 200 in the axial direction, the heating plate 11 is arranged along the axial direction of the drying cylinder 200 and is communicated between each heating plate 11, one end of the heating plate 11 is connected to the output end of the cooler 13 through the heat pump compressor 14, the other end of the heating plate 11 is connected to the input end of the cooler 13 through the expansion valve 15, the vacuum pump 12 is communicated with the inside of the drying cylinder 200, after the heat pump compressor 14 is started, the heat pump working medium absorbs the heat energy contained in the water vapor in the drying cylinder 200 through the cooler 13, enters the heating plate 11 after being heated and pressurized by the heat pump compressor 14, and is heat released by the heating plate 11, the water in the tea is vaporized by the heat conduction of the heating plate 11, the air in the drying cylinder 200 is absorbed by the vacuum pump 12, so that the inside of the drying cylinder 200 becomes a negative pressure state, the boiling point of the water in the tea is reduced, the water vaporization in the tea is accelerated, and the water vapor discharged from the tea is taken away, sent to the cooler 13 and discharged to the air after the residual heat is absorbed, the boiling point of the water vapor in the tea is reduced and the drying rate is improved, which greatly avoids the contact between the tea and the air, and the oxygen is isolated by the vacuum drying of the drying assembly two, the drying temperature is low, the damage to the nutritional ingredients of the tea is small, the tea is not easy to oxidize and deteriorate, the generation of tea oxidation and fire taste is effectively reduced, and the quality of the tea is improved.
[0026] Through the intermittent cooperation of the vacuum drying of the drying assembly two 3 and the normal pressure drying of the drying assembly one, the drying is carried out in the mode of normal pressure-negative pressure-normal pressure repeated circulation, which is beneficial to the migration of the internal water in the tea to the surface layer, so that the water is more easily vaporized and evaporated in time, so as to avoid the generation of water smog taste of the dried tea, the tea aroma is more fragrant, the color is green and lustrous, the efficiency is high, the time is short, the dehydration of the tea is accelerated, the color and aroma are preserved, and the color, aroma, taste and nutritional ingredients of the food are preserved. Example 2
[0027] The continuous tea drying and aroma improving device of the embodiment is like Figure 1As shown, including the bracket 100 and installed on the bracket 100 drying cylinder 200, the drying cylinder 200 inside is provided with the drum 4 corresponding to the shaft center of the drying cylinder 200 overlap, drying cylinder 200 is respectively provided with the feeding bin corresponding to the drum 4 on the inlet and outlet, feeding bin, discharge bin and inlet are all sealed, the drum body of the drum 4 is rolled from the steel plate with a hole, the inside of the drum 4 is communicated with the drying cylinder 200 through the hole, a relatively closed space is formed between the drum 4 and the drying cylinder 200, combined with Figure 2 And Figure 3 , the drum 4 is provided with uniform anti-skid rib 9 on the inner wall of the axial direction, the angle of the anti-skid rib 9 is along the tangent direction and consistent with the drum operation direction, the inner wall of the both ends of the drum 4 is provided with uniform frying plate 10, the frying plate 10 is arranged on the inner wall of the end of the drum 4 along the radial direction of the drum, the tea leaf is automatically extruded by the frying plate 10 at both ends of the drum 4 in the process of rotating with the drum body, so that the tea leaf is more compact in shape and better in modeling, the anti-skid rib 9 can prevent the tea leaf from sliding friction with the inner wall of the drum 4, drive the tea leaf to turn over, form a curtain, and make the tea leaf fully contact with the hot air to prevent the tea leaf from discoloration.
[0028] Combined with Figure 2 , the both ends of the drum 4 are connected with the drying cylinder 200 through the rotating assembly, the rotating assembly includes a fixed wheel 6 and a movable wheel 7, the movable wheel 7 is engaged with the fixed wheel 6, the fixed wheel 6 is located at the center of the outer wall of the drum 4, the driving shaft 41 penetrating the fixed wheel 6 is connected at the shaft center of the fixed wheel 6, the driving shaft 41 is fixedly connected with the outer wall of the end of the drum 4 through the fixed wheel 6, one end of the driving shaft 41 close to the drum 4 is connected with the short shaft 42 extending along the radial direction of the drum 4, the driving shaft 41 and the short shaft 42 are in one-piece structure, the movable wheel 7 is installed at the end of the short shaft 42 away from the driving shaft 41, the support rod 5 is provided inside the drum 4 corresponding to the movable wheel 7, the both ends of the support rod 5 are connected with the movable wheel 7 through the universal ball hinge 8, one end of the universal ball hinge 8 towards the movable wheel 7 is connected with the movable wheel 7 through the short shaft 42.
[0029] The driving shaft 41 is driven by external force to drive the whole drum 4 to rotate, the short shaft 42 rotates synchronously with the driving shaft 41, so that the movable wheel 7 at the end of the short shaft 42 rotates around the fixed wheel 6, the outer surface of the universal ball hinge 8 has a groove, the end of the support rod 5 has a clamping frame matched with the groove, the universal ball hinge 8 rotates with the movable wheel 7, the support rod 5 rotates with the movable wheel 7 in the drum 4 under the action of the universal ball hinge 8, and rotates synchronously with the drum 4, so as to stir and turn over the tea leaf in the drum 4, so that the tea leaf moves in a circulating manner in the drum 4, and the uniformity of the tea leaf is improved.
[0030] Obviously, the above embodiments are only examples for clearly illustrating the present application and are not intended to limit the present application. Based on the above description, other different forms of changes or variations can be made by those skilled in the art without departing from the spirit of the present application. Here, it is not necessary or possible to enumerate all the embodiments, and the obvious changes or variations derived therefrom are still within the protection scope of the claims of the present patent application.
Claims
1. A continuous tea drying and flavour enhancing apparatus, characterised in that, The application relates to a tea drying device, which comprises a support (100) and a drying cylinder (200) arranged on the support (100), wherein the drying cylinder (200) is internally provided with a drum (4) corresponding to the axis of the drying cylinder (200), and the two ends of the drying cylinder (200) are respectively connected with drying assembly one and drying assembly two (3), and the drying assembly one and the drying assembly two (3) are sequentially matched to repeatedly dry tea in the drum (4).
2. The continuous tea drying and flavour enhancing device as claimed in claim 1, wherein, The drum (4) is rolled from a steel plate with a through hole, and the drum (4) is internally communicated with the drying cylinder (200).
3. The continuous tea drying and flavour enhancing device as claimed in claim 1 wherein, The drying assembly one comprises a hot blast furnace (1) and an air blower (2), the hot blast furnace (1) is connected with the drying cylinder (200) through the air blower (2), and hot air of the hot blast furnace (1) enters the drying cylinder (200) under the action of the air blower (2).
4. The continuous tea drying and flavour enhancing device as claimed in claim 1, wherein, The drying assembly two (3) comprises a heat pump compressor (14), a cooler (13), a vacuum pump (12) and a heating plate (11) arranged on the inner side wall of the drying cylinder (200) in the axial direction, one end of the heating plate (11) is connected to the output end of the cooler (13) through the heat pump compressor (14), the other end of the heating plate (11) is connected to the input end of the cooler (13) through an expansion valve (15), and the vacuum pump (12) is communicated with the inside of the drying cylinder (200).
5. The continuous tea drying and flavour enhancing device as claimed in claim 1 wherein, The two ends of the drum (4) are connected with the drying cylinder (200) through rotating assemblies, the rotating assemblies comprise a fixed wheel (6) and a movable wheel (7), the movable wheel (7) is engaged with the fixed wheel (6), the fixed wheel (6) is located at the center of the outer side wall of the drum (4), a driving shaft (41) penetrating through the fixed wheel (6) is connected with the fixed wheel (6) at the axis, the driving shaft (41) is fixedly connected with the outer side wall of the end of the drum (4) through the fixed wheel (6), one end of the driving shaft (41) close to the drum (4) is connected with a short shaft (42) extending in the radial direction of the drum (4), and the movable wheel (7) is arranged at the end of the short shaft (42) away from the driving shaft (41). A supporting rod (5) is arranged in the drum (4) corresponding to the movable wheel (7), and the two ends of the supporting rod (5) are connected with the movable wheel (7) through universal ball hinges (8).
6. The continuous tea drying and flavour enhancing device as claimed in claim 1 wherein, Anti-skid ribs (9) are uniformly arranged on the inner circumferential wall of the drum (4) in the axial direction, and frying plates (10) are uniformly arranged on the inner side walls of the two ends of the drum (4).