A white tea aroma enhancement production process and production equipment

Abstract

The present invention relates to the field of white tea production, and in particular to a white tea aroma enhancement production process and production equipment thereof, comprising a box body, wherein the box body is provided with a hot air component, and the hot air component is used for replacing hot air inside the box body; a flexible mesh belt, which is placed in the box body and is used for carrying the white tea for hot air drying; a top belt component, which is distributed below the portion of the flexible mesh belt that carries the white tea, and has several groups of top belt components, wherein the top belt components include an axle column, and two parallel top rollers are connected on both sides of the axle column by a connecting frame. The present invention adopts the flexible mesh belt as the main body for carrying the white tea, supports the flexible mesh belt through several top belt components, so that several concave gaps for accommodating the white tea are formed on the upper surface of the flexible mesh belt, and hot air penetrates the flexible mesh belt to dry the white tea, and regularly drives the top rollers on both sides of the axle column to rotate and displace, so that the concave gaps on the surface of the flexible mesh belt are displaced to the side, which is used for turning the white tea, promoting uniform drying of the white tea, and maintaining a uniform "aroma enhancement" taste of the white tea.

Description

Technical Field

[0001] The invention relates to the field of white tea production, and in particular to a white tea aroma enhancement production process and production equipment. Background Art

[0002] Baking is a necessary process in the production of white tea. After the white tea withers naturally, it forms "raw tea". At this time, the water content is relatively high, and baking is needed to further remove the higher moisture in the white tea. The water content of qualified white tea is less than 8.5% after baking. The aroma of the low-moisture white tea is more easily revealed after baking, so baking is also called "enhancing the aroma".

[0003] White tea can be roasted naturally or by machine. Natural roasting is achieved by irradiating tea leaves with sunlight. This roasting method is greatly affected by the weather and has low roasting efficiency. Machine roasting uses a hot air oven to dry the white tea, which has higher roasting efficiency. When using a roasting machine to dry white tea, the white tea is spread flat on the surface of a baking tray, and several tea trays are stacked in the roasting machine. During the roasting process, the white tea is in a static state, the outer layer of white tea dries faster, and the inner layer of white tea dries slower. The static placement of the white tea leads to inconsistent drying efficiency of the white tea distributed inside and outside, which makes the flavor of the white tea different. Summary of the Invention

[0004] The purpose of the present invention is to solve the following problems existing in the prior art: when using a roaster to dry white tea, the white tea is spread flat on the surface of a baking tray, and several tea trays are stacked in the roaster. During the roasting process, the white tea is in a static state, the outer layer of white tea is dried faster, and the inner layer of white tea is dried slower. The static placement of the white tea leads to inconsistent drying efficiency of the white tea distributed inside and outside, resulting in differences in the flavor and taste of the white tea.

[0005] In order to solve the problems existing in the prior art, the present invention provides a white tea production device, comprising a box body, the box body is equipped with a hot air component, and the hot air component is used for replacing hot air inside the box body;

[0006] A flexible mesh belt is placed in the box and is used to carry the white tea for hot air drying;

[0007] The top belt assembly is distributed below the portion of the flexible mesh belt that carries the white tea, and the top belt assembly has several groups. The top belt assembly includes a shaft column, and two parallel top rollers are connected on both sides of the shaft column through a connecting frame. Each group of top belt assemblies has a top roller supporting the flexible mesh belt. The surface of the flexible mesh belt is supported by the top roller to form a continuous concave gap, and the white tea is placed in the concave gap;

[0008] The driving assembly is connected to the shaft column and is used to drive the two top rollers to support the flexible mesh belt in a displaced manner, so that the concave gap on the surface of the flexible mesh belt is displaced, so as to turn over the white tea in the concave gap.

[0009] Preferably, the driving assembly includes a first cylinder, the telescopic end of the first cylinder is connected to a rack, and a gear is fixed to the end of each shaft column, and the rack is synchronously meshed with the gear.

[0010] Preferably, the hot air component includes a hot air blower, the bottom of the box is provided with an air duct running through its inner cavity, the exhaust end of the hot air blower is connected to the air duct, and the top of the box is provided with an exhaust port.

[0011] Preferably, the flexible mesh belt is distributed in the shape of a continuous closed belt, the recessed gap is placed on the upper part of the flexible mesh belt, and a driving belt roller and a movable belt roller parallel to the top roller are provided in the box body. The driving belt roller, the movable belt roller and the top roller support the flexible mesh belt so that the flexible mesh belt can continuously conduct movement, and the driving belt roller is connected to a motor.

[0012] Preferably, one side of the box body has an extension part, and the upper and lower parts of the extension part are respectively provided with a loading port and a discharging port. The two ends of the movable belt roller are connected to a second cylinder, and the second cylinder extends to drive the movable belt roller to move linearly into the extension part, so that the concave gap on the surface of the flexible mesh belt is flattened, which is used for loading and unloading materials on the surface of the flexible mesh belt.

[0013] Preferably, both ends of the driving belt roller, the movable belt roller and the top roller are provided with expansion disks, and both sides of the flexible mesh belt have rubber belt edges with arc-shaped cross-sections, and the edges of the rubber belt edges are fixed with steel wire ropes. The rubber belt edges are covered on the surface of the expansion disk and are used to axially straighten the flexible mesh belt.

[0014] Preferably, a lifting frame is vertically slidable on the top of the box body, and a plurality of rollers are rotated at the bottom of the lifting frame. The rollers are aligned with the edge of the rubber belt. The lifting frame is connected to a third cylinder, and the third cylinder drives the lifting frame to descend, so that the rollers press down the edge of the rubber belt to form the concave gap on the surface of the flexible mesh belt.

[0015] Preferably, a micro switch is provided on the inner wall of the box, a contact piece is fixed on the surface of the flexible mesh belt, the contact piece is aligned with the micro switch, and the micro switch is electrically connected to the motor.

[0016] Preferably, a plurality of rubber strips are fixed on the surface of the flexible mesh belt, and the rubber strips are parallel to the top roller.

[0017] A fragrance enhancement production process based on the white tea production equipment, comprising the following specific steps:

[0018] A. Place the white tea in the concave gap on the surface of the flexible mesh belt;

[0019] B. Hot air is delivered into the box through the hot air component, and the hot air passes through the flexible mesh belt to dry the white tea;

[0020] C. Drive the shaft column to rotate through the driving assembly, so that the top rollers on both sides of the top belt assembly swing and change positions to support the flexible mesh belt, so that the position of the concave gap on the surface of the flexible mesh belt moves, and the white tea in the concave gap is turned over during the drying process.

[0021] Compared with related technologies, the white tea aroma enhancement production process and production equipment provided by the present invention have the following beneficial effects:

[0022] The present invention adopts a flexible mesh belt as the main body for carrying white tea, and supports the flexible mesh belt through a plurality of top belt components, so that a plurality of concave gaps for accommodating white tea are formed on the upper surface of the flexible mesh belt. Hot air passes through the flexible mesh belt to dry the white tea, and the top rollers on both sides of the shaft are driven to rotate and replace at a regular time, so that the concave gaps on the surface of the flexible mesh belt are displaced to the side, which is used to turn the white tea, promote uniform drying of the white tea, and maintain a uniform "fragrant" taste of the white tea. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is one of the overall structural diagrams of the present invention;

[0024] Figure 2 This is the second schematic diagram of the overall structure of the present invention;

[0025] Figure 3 Schematic diagram of the recess gap distribution of the present invention;

[0026] Figure 4 This is a schematic diagram of the concave gap straightening of the present invention;

[0027] Figure 5 This is a schematic structural diagram of the top belt assembly of the present invention;

[0028] Figure 6 It is a schematic diagram of the side straightening and limiting structure of the flexible mesh belt of the present invention.

[0029] Numbers in the figure: 1. Box body; 11. Discharge port; 12. Loading port; 13. Exhaust port; 2. Hot air blower; 21. Air duct; 3. Flexible mesh belt; 31. Rubber belt edge; 32. Rubber strip; 33. Steel wire; 34. Expansion disk; 4. Top belt assembly; 41. Shaft column; 42. Connecting frame; 43. Top roller; 5. Driving belt roller; 51. Motor; 6. Moving belt roller; 61. Second cylinder; 7. Lifting frame; 71. Roller; 72. Third cylinder; 8. First cylinder; 81. Rack; 82. Gear; 9. Micro switch; 91. Contact piece. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0031] The specific implementation of the present invention is described in detail below with reference to specific embodiments.

[0032] The white tea production equipment provided by the present invention is used for baking and processing white tea to achieve the "fragrance enhancement" effect of white tea. The present application adopts a flexible mesh belt to carry the white tea, and supports the flexible mesh belt 3 through a uniformly distributed top belt assembly 4 to form a plurality of concave gaps, so that the white tea is placed in the concave gaps. Hot air passes through the flexible mesh belt 3 to dry the white tea in the concave gaps. The two top rollers 43 of the top belt assembly 4 are driven at regular intervals to support the flexible mesh belt 3 in a transposed manner, so that the concave gaps are located, and are used to turn the white tea in the concave gaps so that the white tea is dried evenly. The specific implementation conditions are as follows:

[0033] Example 1

[0034] like Figure 1 and Figure 4 As shown, the box body 1 has a cavity inside;

[0035] The hot air assembly includes a hot air blower 2, which is mounted on the outer wall of the box body 1. An air duct 21 is provided at the bottom of the box body 1, and the air duct 21 passes through the inner cavity of the box body 1. A filter is encapsulated at the portion through which the air duct 21 passes. The exhaust end of the hot air blower 2 is connected to the air duct 21. An exhaust port 13 is provided at the top of the box body 1, and a filter is encapsulated in the exhaust port 13.

[0036] The hot air is generated by the hot air blower 2 and introduced into the air duct 21. The hot air is then evenly guided from bottom to top in the box 1 through the air duct 21 and discharged from the exhaust port 13.

[0037] The flexible mesh belt 3 is woven from mesh cloth and is a continuous closed annular belt body. The flexible mesh belt 3 is placed in the box body 1, and its upper surface is nearly horizontal. Several groups of top belt assemblies 4 are placed inside the flexible mesh belt 3 to support the upper surface of the flexible mesh belt 3.

[0038] like Figure 3 、 Figure 4 and Figure 5 As shown, the top belt assembly 4 includes a shaft column 41, and two parallel top rollers 43 are connected on both sides of the shaft column 41 through a connecting frame 42. The two ends of the shaft column 41 are rotatably connected to the box body 1. Each set of top belt assemblies 4 has a top roller 43 supporting the flexible mesh belt 3. Adjacent top rollers 43 support the flexible mesh belt 3 to form a continuous downward V-shaped concave gap;

[0039] like Figure 2 As shown, the driving assembly includes a first cylinder 8, which is mounted on the outer wall of the box body 1. A rack 81 is linearly slidably mounted on the outer wall of the box body 1. A gear 82 is fixedly mounted on the end of each shaft column 41, and the rack 81 is meshed with the gear 82.

[0040] Hot air is delivered from bottom to top into the box body 1 by the hot air blower 2. The white tea is placed in the various concave gaps on the upper surface of the flexible mesh belt 3. The hot air passes through the flexible mesh belt 3 to dry the white tea. The airflow with moisture is discharged from the exhaust port 13. The first cylinder 8 is started at a regular time to drive the rack 81 to slide linearly. The rack 81 is meshed with the gear 82 to make the shaft column 41 rotate 90 degrees each time, which is used to replace the top rollers 43 on both sides of the shaft column 41. The upper top roller 43 descends to gradually expand the concave gap. At the same time, the lower top roller 43 rises to support the flexible mesh belt 3, so that the concave gap moves horizontally from the original position to both sides. The white tea in the concave gap is turned over, which is conducive to uniform drying of the white tea.

[0041] like Figure 5 and Figure 6 As shown, a plurality of rubber strips 32 are fixed on the upper surface of the flexible mesh belt 3. The rubber strips 32 are parallel to the top roller 43. The distribution of the rubber strips 32 increases the weight of the upper surface of the flexible mesh belt 3, making it easier to fall and form a concave gap. In addition, the setting of the rubber strips 32 is used to spread the white tea in the concave gap, increase the distribution area of ​​the white tea, and improve the drying efficiency.

[0042] Example 2

[0043] like Figure 3 and Figure 4 As shown, a driving belt roller 5 and a moving belt roller 6 are provided on the inner side of the flexible mesh belt 3 and are parallel to the top roller 43. The flexible mesh belt 3 is supported by the driving belt roller 5, the moving belt roller 6 and the top roller 43 to form a conveyor belt shape. The driving belt roller 5 is rotatably connected to the box body 1. A motor 51 is installed on the outside of the box body 1, and the output shaft of the motor 51 is connected to the driving belt roller 5.

[0044] An extension portion is provided on one side of the box body 1, and a loading port 12 and a discharging port 11 are provided at the upper and lower parts of the extension portion, respectively. The movable belt roller 6 is parallel to the upper surface of the flexible mesh belt 3, and chute grooves are symmetrically provided on both sides of the extension portion. Slide blocks are slidably installed in the chute. Both ends of the movable belt roller 6 are rotatably connected to the slide blocks. A second cylinder 61 is installed on the outer wall of the box body 1, and the telescopic end of the second cylinder 61 is fixedly connected to the slide block.

[0045] After the white tea is dried, the second cylinder 61 is extended, causing the movable belt roller 6 to move along the chute to the end of the extension portion, the flexible mesh belt 3 is tightened, and the concave gap is flattened. At this time, the motor 51 is turned on to drive the driving belt roller 5 to rotate, causing the upper surface of the flexible mesh belt 3 to be transferred toward the extension portion, and the dried white tea is discharged from the discharge port 11;

[0046] An expansion disk 34 is installed at both ends of the driving belt roller 5, the moving belt roller 6, and the top roller 43. Both sides of the flexible mesh belt 3 have a rubber belt edge 31 with an arc-shaped cross section. The rubber belt edge 31 is coated on the surface of the expansion disk 34. A steel wire 33 is fixed to the edge of the rubber belt edge 31. The flexible mesh belt 3 is axially flattened by the rubber belt edge 31 and the expansion disk 34 covering and limiting, and the steel wire 33 pulling and limiting.

[0047] like Figure 1 、 Figure 2 and Figure 3 As shown, a lifting frame 7 is vertically slidably installed on the top of the box body 1, and a plurality of rollers 71 are rotated at the bottom of the lifting frame 7. The rollers 71 are aligned with the rubber belt edge 31. A third cylinder 72 is installed on the surface of the box body 1, and the telescopic end of the third cylinder 72 is connected to the lifting frame 7;

[0048] White tea loading: The second cylinder 61 extends and drives the moving belt roller 6 to move to the extension part, so that the flexible mesh belt 3 is tightened. At this time, the motor 51 is turned on to rotate in the opposite direction, driving the upper surface of the flexible mesh belt 3 to conduct in the direction away from the extension part. In this process, white tea is added to the surface of the flexible mesh belt 3 through the feeding port 12. When the part of the flexible mesh belt 3 carrying white tea reaches the inner end of the box 1, the motor 51 is stopped and the third cylinder 72 is turned on to contract, so that the lifting frame 7 drives the roller 71 to descend. The roller 71 squeezes the rubber belt edge 31 downward, so that a concave gap is gradually formed on the upper surface of the flexible mesh belt 3. After the concave gap is formed, the third cylinder 72 is reset;

[0049] like Figure 4 As shown, a micro switch 9 is provided on the inner wall of the box body 1 away from the extension part, and a contact piece 91 is fixed on the surface of the flexible mesh belt 3. The contact piece 91 is aligned with the micro switch 9, and the micro switch 9 is electrically connected to the motor 51. During the loading process, when the motor 51 drives the flexible mesh belt 3 to convey the tea leaves to the inner end of the box body 1, the contact piece 91 touches the micro switch 9, which is used to timely pause the operation of the motor 51 to avoid excessive conduction of the flexible mesh belt 3.

[0050] Example 3

[0051] A fragrance enhancement production process based on the white tea production equipment, comprising the following specific steps:

[0052] A. Place the white tea in the concave gap on the surface of the flexible mesh belt 3;

[0053] B. Hot air is delivered into the box 1 through the hot air component, and the hot air passes through the flexible mesh belt 3 to dry the white tea;

[0054] C. The driving assembly drives the shaft column 41 to rotate, so that the top rollers 43 on both sides of the top belt assembly 4 swing and change positions to support the flexible mesh belt 3, so that the position of the concave gap on the surface of the flexible mesh belt 3 moves, so that the white tea in the concave gap is turned over during the drying process.

Claims

1. A white tea production equipment, characterized in that, include: The box (1) is equipped with a hot air component, and the hot air component is used for replacing hot air inside the box (1); A flexible mesh belt (3), the flexible mesh belt (3) is placed in the box (1) and is used to carry the white tea for hot air drying; A top belt assembly (4), the top belt assembly (4) is distributed below the portion of the flexible mesh belt (3) that carries the white tea, and the top belt assembly (4) has a plurality of groups, the top belt assembly (4) includes a shaft column (41), two parallel top rollers (43) are connected on both sides of the shaft column (41) via a connecting frame (42), each group of top belt assemblies (4) has a top roller (43) that supports the flexible mesh belt (3), the surface of the flexible mesh belt (3) is supported by the top roller (43) to form a continuous concave gap, and the white tea is placed in the concave gap; A driving assembly connected to the shaft column (41) for driving two top rollers (43) to support the flexible mesh belt (3) in a transposed manner, so that the concave gap on the surface of the flexible mesh belt (3) is displaced, thereby turning over the white tea in the concave gap; The flexible mesh belt (3) is distributed in a continuous closed belt shape, the recessed gap is located at the upper portion of the flexible mesh belt (3), a driving belt roller (5) and a moving belt roller (6) parallel to the top roller (43) are provided in the box (1), the driving belt roller (5), the moving belt roller (6), and the top roller (43) support the flexible mesh belt (3), so that the flexible mesh belt (3) can continuously conduct movement, and the driving belt roller (5) is connected to a motor (51); One side of the box body (1) has an extension portion, and the upper and lower portions of the extension portion are respectively provided with a loading port (12) and a discharging port (11), and both ends of the movable belt roller (6) are connected to a second cylinder (61), and the second cylinder (61) extends to drive the movable belt roller (6) to move linearly into the extension portion, so that the concave gap on the surface of the flexible mesh belt (3) is flattened, and is used for loading and unloading materials on the surface of the flexible mesh belt (3).

2. The white tea production equipment according to claim 1, characterized in that The driving assembly comprises a first cylinder (8), the telescopic end of the first cylinder (8) is connected to a rack (81), the end of each shaft column (41) is fixed with a gear (82), and the rack (81) is synchronously meshed with the gear (82).

3. The white tea production equipment according to claim 1, characterized in that, The hot air assembly comprises a hot air blower (2); the bottom of the box body (1) is provided with an air duct (21) penetrating the inner cavity thereof; the exhaust end of the hot air blower (2) is connected to the air duct (21); and the top of the box body (1) is provided with an air outlet (13).

4. The white tea production equipment according to claim 1, characterized in that, Both ends of the driving belt roller (5), the moving belt roller (6), and the top roller (43) are provided with a diameter expansion disk (34), and both sides of the flexible mesh belt (3) have a rubber belt edge (31) with an arc-shaped cross section, and a steel wire (33) rope is fixed to the edge of the rubber belt edge (31). The rubber belt edge (31) is covered on the surface of the diameter expansion disk (34) and is used to axially straighten the flexible mesh belt (3).

5. The white tea production equipment according to claim 4, characterized in that, A lifting frame (7) is vertically slidably mounted on the top of the box (1). A plurality of rollers (71) are rotated at the bottom of the lifting frame (7). The rollers (71) are aligned with the edge of the rubber belt (31). The lifting frame (7) is connected to a third cylinder (72). The third cylinder (72) drives the lifting frame (7) to descend, causing the rollers (71) to press down the edge of the rubber belt (31), thereby forming the recessed gap on the surface of the flexible mesh belt (3).

6. The white tea production equipment according to claim 1, characterized in that, A micro switch (9) is provided on the inner wall of the box (1), a contact piece (91) is fixed on the surface of the flexible mesh belt (3), the contact piece (91) is aligned with the micro switch (9), and the micro switch (9) is electrically connected to the motor (51).

7. The white tea production equipment according to claim 1, characterized in that: A plurality of rubber strips (32) are fixed on the surface of the flexible mesh belt (3), and the rubber strips (32) are parallel to the top roller (43).

8. A fragrance-enhancing production process based on the white tea production equipment according to any one of claims 1 to 7, characterized in that: The specific steps are as follows: A. Place the white tea in the concave gap on the surface of the flexible mesh belt (3); B. delivering hot air into the box (1) through the hot air component, and the hot air passes through the flexible mesh belt (3) to dry the white tea; C. The driving assembly drives the shaft column (41) to rotate, so that the top rollers (43) on both sides of the top belt assembly (4) swing and change positions to support the flexible mesh belt (3), so that the position of the concave gap on the surface of the flexible mesh belt (3) moves, so that the white tea in the concave gap is turned over during the drying process.

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