Tea leaf processing high-efficiency drying equipment

Abstract

The present application relates to the technical field of tea processing equipment, and discloses a high-efficiency drying equipment for tea processing, which comprises a drying bin body, a hot air machine, a moisture removal machine, a drying rack, a drying disc and a sealing bin door, the inside of the drying bin body is symmetrically provided with a drying mechanism, the drying mechanism comprises a blowing hose, the end of the blowing hose away from the hot air machine is fixedly connected with a vertical blowing main pipe, the outside of the vertical blowing main pipe is uniformly fixedly connected with horizontal blowing branch pipes, the outside of the horizontal blowing branch pipes is uniformly provided with blowing nozzles, and the inside of the drying bin body is uniformly and symmetrically provided with a turnover mechanism. The vertical blowing main pipe drives the blowing nozzles to reciprocatingly move to uniformly dry the tea leaves laid on the drying disc while the reduction motor is started, the turnover harrow A and the turnover harrow B can alternately flexibly turn over the tea leaves, that is, the tea leaves can be uniformly and sufficiently dried, and the generation of broken tea leaves can be reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tea processing equipment, and particularly relates to a high-efficiency tea processing drying equipment. BACKGROUND

[0002] Tea drying is one of the key steps in the tea processing process, which can not only remove excess moisture in tea to prevent mold, but also help fix the shape of tea, enhance aroma and maintain color. The high-efficiency tea processing drying equipment is a device specially used for tea drying, which aims to improve the drying efficiency and quality of tea to maintain the color, aroma, taste and shape of tea, and adopts advanced drying technology and intelligent control system to realize accurate control of the tea drying process, ensure uniform heating and moderate evaporation of moisture during the drying process, thereby improving the quality and taste of tea.

[0003] According to the search, the Chinese invention patent with the publication number CN115371402A discloses a multi-layer drying equipment and method for tea processing, which comprises a drying box, two drying fans are fixedly installed at the top and bottom of the inner cavity of the drying box, a first heat preservation door and a second heat preservation door are rotatably installed on the two sides of the drying box, two transmission belts are rotatably installed in the drying box, a plurality of drying mechanisms are fixedly installed between the two transmission belts, and a lifting assembly is fixedly installed at the bottom of the outer wall of the drying box. Compared with the prior art, the drying box is provided with a plurality of circulating movable drying mechanisms to ensure that the tea on each drying mechanism can be fully dried.

[0004] The above-mentioned multi-layer drying equipment for tea processing needs to pass through the horizontal conveying of the conveying net to realize the uniform drying of tea, pass through the downward conveying of the conveying net to realize the falling and turning of tea, pass through the horizontal conveying of the conveying net to realize the secondary drying of the turned tea, and pass through the conveying of the tea suction machine to realize the circulating drying of tea. Although the whole drying process can ensure that the tea in each layer can be uniformly and fully dried, the operation process involved in changing the movement state and spatial position of the conveying net is too complicated, and the repeated conveying of tea will undoubtedly increase the generation of broken tea, which will greatly reduce the appearance of tea. Therefore, a high-efficiency tea processing drying equipment capable of uniformly and fully drying tea and reducing the generation of broken tea is needed. SUMMARY

[0005] The purpose of the present application is to solve the problems of complicated operation process and increased generation of broken tea caused by repeated conveying of tea in the prior art, and to provide a high-efficiency tea processing drying equipment.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A high-efficiency drying device for tea processing includes a drying chamber, a hot air blower and a dehumidifier symmetrically installed at the bottom and top of the drying chamber, a drying rack placed inside the drying chamber, multiple drying trays symmetrically placed inside the drying rack, and a sealed chamber door located outside the drying chamber. The drying chamber contains symmetrically arranged drying mechanisms for uniformly drying the tea leaves. Each drying mechanism includes a flexible air supply hose fixedly connected to the air outlet of the hot air blower. One end of the flexible air supply hose away from the hot air blower is fixedly connected to a vertical main air supply pipe capable of horizontal reciprocating movement. A horizontal branch air supply pipe located above the drying trays is uniformly fixedly connected to the outside of the vertical main air supply pipe, and air supply nozzles are uniformly arranged on the outside of the horizontal branch air supply pipe.

[0008] The interior of the drying chamber is uniformly and symmetrically equipped with a turning mechanism for flexibly turning the tea leaves. The turning mechanism includes rotating gears uniformly rotatably connected to the outside of the horizontal air supply branch pipe. The uniformly distributed rotating gears rotate together through a connecting frame. Vertical toothed rods A are meshed with one side of the uniformly distributed rotating gears at intervals, and vertical toothed rods B are meshed with the other side of the uniformly distributed rotating gears at intervals. Turning rakes A and B are respectively fixedly connected to the bottom of the vertical toothed rods A and B. The horizontal positions of the rubber rake teeth at the bottom of the turning rakes A and B are staggered.

[0009] The drying mechanism and the turning mechanism are connected by a linkage mechanism. The linkage mechanism includes an L-shaped connecting rod that slides horizontally with the vertical air supply pipe. The vertical end of the L-shaped connecting rod is fixedly connected to an abutment plate that slides vertically inside the drying chamber via a connecting plate. A return spring A is fixedly connected between the connecting plate and the drying chamber and is sleeved on the outside of the L-shaped connecting rod. An abutment slope is provided on the side of the abutment plate away from the connecting plate. An abutment block is fixedly connected to the inside of the sealed chamber door on the outside of the abutment slope. The abutment block can abut against the abutment plate through the abutment slope. When the sealed chamber door is closed, the abutment block can press against the abutment slope, causing the vertical air supply pipe to drive the turning mechanism downwards towards the tea leaves in the drying tray.

[0010] The linkage mechanism also includes a linkage gear rotatably connected to the outside of the vertical air supply main pipe, and the linkage gear is fixedly connected to the connecting frame outside the rotating gear; the linkage gear drives the evenly distributed rotating gears to rotate synchronously through the connecting frame;

[0011] The linkage mechanism also includes vertical sliding grooves symmetrically formed on the inner wall of the drying chamber. A sliding plate is slidably connected inside the vertical sliding groove. A return spring B is fixedly connected between the top of the sliding plate and the vertical sliding groove. A magnetic top block B is fixedly connected to the bottom of the sliding plate. A magnetic bottom block B is installed inside the vertical sliding groove below the magnetic top block B. A horizontal toothed rod is fixedly connected to the outside of the sliding plate. The serrations at the bottom of the horizontal toothed rod can rotate outward and return inward. After the vertical air supply pipe drives the flipping mechanism downward and approaches the drying tray, the vertical air supply pipe moving towards the center can drive the linkage gear to rotate counterclockwise through the serrations. The vertical air supply pipe moving towards the side can drive the linkage gear to rotate clockwise through the serrations.

[0012] The above technical solution further includes:

[0013] The drying chamber is symmetrically and fixedly connected with positioning blocks for positioning the drying rack. A temperature and humidity sensor is installed inside the drying chamber. A control display is installed outside the sealed chamber door and is electrically connected to the hot air blower, the dehumidifier, and the temperature and humidity sensor. The drying temperature, drying degree, drying time, and dehumidification degree of the tea inside the drying chamber can be controlled through the temperature and humidity sensor and the control display.

[0014] The drying mechanism also includes a geared motor installed outside the drying chamber. The input end of the geared motor is electrically connected to the control display. The output end of the geared motor is fixedly connected to a bidirectional lead screw that is slidably connected inside the drying chamber. The external thread of the bidirectional lead screw is connected to a movable connecting block that slides vertically with the vertical air supply main pipe. By starting the geared motor and rotating it continuously, the horizontal air supply branch pipe can drive the evenly arranged air supply nozzles to evenly dry the tea leaves spread on the drying tray.

[0015] The turning mechanism also includes U-shaped telescopic rods uniformly fixedly connected to the top of the horizontal air supply branch pipe. One output end of each uniformly distributed U-shaped telescopic rod is fixedly connected to the top of the turning rake A, and the other output end of each uniformly distributed U-shaped telescopic rod is fixedly connected to the top of the turning rake B. Magnetic top blocks A are fixedly connected to both fixed ends of the uniformly distributed U-shaped telescopic rods. Magnetic bottom blocks A are uniformly fixedly connected to the tops of the turning rake A and the turning rake B. The interlaced rubber rake teeth at the bottom of the turning rake A and the turning rake B can alternately and gently turn the tea leaves. The magnetic top blocks A and the magnetic bottom blocks A attract each other and can limit the turning rake A or the turning rake B that is gently turning.

[0016] The drying chamber is equipped with a dehumidification mechanism that is uniformly and symmetrically arranged inside to assist in the removal of moisture. This mechanism includes longitudinal moisture-absorbing pipes evenly distributed at the top of the drying tray and vertical dehumidification pipes evenly distributed on the sides of the drying rack. One-way valves are installed at the ends of both the longitudinal and vertical dehumidification pipes. The ends of the evenly distributed longitudinal moisture-absorbing pipes are all fixedly connected to a Z-shaped connecting pipe. The end of the Z-shaped connecting pipe furthest from the drying rack is fixedly connected to a U-shaped connecting pipe that passes through the drying chamber. The U-shaped connecting pipe is furthest from the drying rack. One end of the Z-shaped connecting pipe is equipped with a piston rod that is fixedly connected to the vertical air supply pipe. The outside of the U-shaped connecting pipe is fixedly connected to a longitudinal connecting pipe that is fixedly connected to the bottom end of the evenly distributed longitudinal moisture absorption pipes. When the vertical air supply pipe moves towards the center, the longitudinal moisture absorption pipes can absorb the moisture generated during the drying process of the drying tray, so as to prevent excessive moisture from rising and passing through the upper drying tray. When the vertical air supply pipe moves towards the side, the vertical exhaust pipes can exhaust the moisture drawn in by the longitudinal moisture absorption pipes to the side of the drying rack, so as to promote the rising speed of moisture in the side space.

[0017] The present invention has the following beneficial effects:

[0018] This invention enables the vertical air supply main pipe to drive multiple layers of air supply nozzles to reciprocate and evenly dry the tea leaves spread on each drying tray by activating the geared motor. While the evenly distributed air supply nozzles are drying the tea leaves in the drying tray for the first time, the turning rake A can gently turn the tea leaves in the drying tray for the first time. While the evenly distributed air supply nozzles are drying the tea leaves in the drying tray for the second time, the turning rake B can gently turn the tea leaves in the drying tray for the second time. That is, while performing uniform drying, the tea leaves are also being gently turned over. This invention can dry the tea leaves evenly and thoroughly, while reducing the production of broken tea leaves.

[0019] This invention achieves uniform drying of multiple layers of tea leaves by reciprocating the vertical air supply pipe and flexibly staggering and turning them. The longitudinal moisture absorption pipe and the vertical moisture exhaust pipe can alternately absorb moisture above the drying tray and promote the upward speed of moisture in the side space, avoiding excessive moisture rising through the upper drying tray and affecting the drying efficiency of the upper tea leaves. At the same time, it can promote the upward discharge of moisture. Attached Figure Description

[0020] Figure 1 This is a front structural diagram of a high-efficiency drying equipment for tea processing proposed in this invention;

[0021] Figure 2 This is a schematic diagram of the back structure of a high-efficiency drying device for tea processing proposed in this invention;

[0022] Figure 3 This is a schematic diagram of the structure of the sealed compartment door in this invention when it is open;

[0023] Figure 4 for Figure 3 A front view structural diagram;

[0024] Figure 5 for Figure 4 Enlarged schematic diagram of the structure at point A in the middle;

[0025] Figure 6 for Figure 4 Enlarged schematic diagram of the structure at point B;

[0026] Figure 7 for Figure 4 Enlarged schematic diagram of the structure at point C;

[0027] Figure 8 for Figure 4 A schematic diagram of the side section structure;

[0028] Figure 9 for Figure 4 A schematic diagram of the split structure;

[0029] Figure 10 for Figure 9 The first part of the structural diagram;

[0030] Figure 11 for Figure 9 The second part of the structural diagram;

[0031] Figure 12 This is a schematic diagram of the flipping mechanism in this invention.

[0032] In the diagram: 1. Drying chamber; 2. Hot air blower; 3. Dehumidifier; 4. Drying rack; 5. Drying tray; 6. Sealed door; 70. Drying mechanism; 71. Air supply hose; 72. Vertical main air supply pipe; 73. Horizontal branch air supply pipe; 74. Air supply nozzle; 75. Gear motor; 76. Two-way lead screw; 77. Moving connecting block; 80. Tilting mechanism; 81. Rotating gear; 82. Connecting frame; 83. Vertical rack A; 84. Vertical rack B; 85. Tilting rake A; 86. Tilting rake B; 87. Rubber rake teeth; 88. U-shaped telescopic rod; 89. Magnetic top block A; 90. Magnetic bottom block A; 9. Positioning block; 10. Temperature and humidity sensor; 11. 120. Control display; 121. Linkage mechanism; 122. L-shaped connecting rod; 123. Connecting plate; 124. Abutting plate; 125. Return spring A; 126. Abutting inclined surface; 127. Abutting block; 128. Linkage gear; 129. Vertical sliding groove; 130. Sliding plate; 131. Return spring B; 132. Magnetic suction top block B; 133. Magnetic suction bottom block B; 134. Horizontal gear; 145. Sawtooth; 146. Dehumidification mechanism; 147. Longitudinal dehumidification pipe; 148. Vertical dehumidification pipe; 149. One-way valve plate; 140. Z-shaped connecting pipe; 141. U-shaped connecting pipe; 142. Piston rod; 143. Longitudinal connecting pipe. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example 1

[0034] like Figures 1-12As shown, the present invention proposes a high-efficiency drying equipment for tea processing, including a drying chamber 1, a hot air blower 2 and a dehumidifier 3 symmetrically installed at the top and bottom of the drying chamber 1, a drying rack 4 placed inside the drying chamber 1, multiple drying trays 5 symmetrically placed inside the drying rack 4, and a sealed chamber door 6 set outside the drying chamber 1. The hot air blower 2 is symmetrically installed at the top of the drying chamber 1, and the dehumidifier 3 is symmetrically installed at the back of the drying chamber 1. The specific structure and connection method of the hot air blower 2 and the dehumidifier 3 are based on existing technology, therefore, they are not described in detail in this embodiment. The drying chamber 1 is symmetrically fixedly connected with positioning blocks 9 for positioning the drying rack 4. The drying chamber 1 is equipped with a temperature and humidity sensor 10. The sealed chamber door 6 is equipped with a control display 11 electrically connected to the hot air blower 2, the dehumidifier 3, and the temperature and humidity sensor 10. The drying temperature, drying degree, drying time, and dehumidification degree of the tea inside the drying chamber 1 can be controlled through the temperature and humidity sensor 10 and the control display 11.

[0035] The drying chamber 1 is symmetrically equipped with drying mechanisms 70 for uniformly drying tea leaves. Each drying mechanism 70 includes a flexible air supply hose 71 fixedly connected to the air outlet of a hot air blower 2. The end of the flexible air supply hose 71 furthest from the hot air blower 2 is fixedly connected to a vertical main air supply pipe 72 capable of horizontal reciprocating movement. Horizontal branch air supply pipes 73, located above the drying tray 5, are uniformly fixedly connected to the outside of the vertical main air supply pipe 72. Air supply nozzles 74 are uniformly arranged on the outside of the horizontal branch air supply pipes 73. The drying mechanism 70 also includes a geared motor 75 installed outside the drying chamber 1. The input end of the geared motor 75 is electrically connected to the control display 11. The output end of the geared motor 75 is fixedly connected to a bidirectional lead screw 76 that is slidably connected inside the drying chamber 1. The external thread of the bidirectional lead screw 76 is connected to a movable connecting block 77 that slides vertically with the vertical air supply main pipe 72. By starting the geared motor 75 to rotate continuously, the movable connecting block 77 can drive the vertical air supply main pipe 72 to move back and forth at a slow speed, thereby causing the horizontal air supply branch pipe 73 to drive the evenly arranged air supply nozzles 74 to evenly dry the tea leaves spread flat in the drying tray 5.

[0036] The drying chamber 1 is equipped with a symmetrically arranged turning mechanism 80 for gently turning the tea leaves. The turning mechanism 80 includes rotating gears 81 that are rotatably connected to the outside of the horizontal air supply branch pipe 73. The evenly distributed rotating gears 81 rotate together through a connecting frame 82. Vertical toothed rods A83 are interleaved and meshed on one side of the evenly distributed rotating gears 81, and vertical toothed rods B84 are interleaved and meshed on the other side of the evenly distributed rotating gears 81. Turning rakes A85 and B84 are respectively fixedly connected to the bottom of the vertical toothed rods A83 and B84. 6. The rubber rake teeth 87 at the bottom of the turning rake A85 and the turning rake B86 are horizontally staggered. When the horizontal air supply branch pipe 73 is in the edge position, the rotating gear 81 rotates counterclockwise, which can drive the turning rake A85 to contact the tea in the drying tray 5 through the vertical toothed rod A83. When the horizontal air supply branch pipe 73 is in the middle position, the rotating gear 81 rotates clockwise, which can drive the turning rake B86 to contact the tea in the drying tray 5 through the vertical toothed rod B84. This allows the rubber rake teeth 87 at the bottom of the turning rake A85 and the turning rake B86 to alternately and gently turn the tea.

[0037] The turning mechanism 80 also includes U-shaped telescopic rods 88 that are uniformly fixedly connected to the top of the horizontal air supply branch pipe 73. One output end of each of the uniformly distributed U-shaped telescopic rods 88 is fixedly connected to the top of the turning rake A85, and the other output end of each of the uniformly distributed U-shaped telescopic rods 88 is fixedly connected to the top of the turning rake B86. Magnetic top blocks A89 are fixedly connected to both fixed ends of the uniformly distributed U-shaped telescopic rods 88. Magnetic bottom blocks A90 are uniformly fixedly connected to the tops of the turning rake A85 and the turning rake B86. The magnetic top blocks A89 and the magnetic bottom blocks A90 attract each other and can limit the turning rake A85 or the turning rake B86 that is flexibly turning.

[0038] A linkage mechanism 120 is provided between the drying mechanism 70 and the turning mechanism 80. The linkage mechanism 120 includes an L-shaped connecting rod 121 that slides horizontally with the vertical air supply pipe 72. The vertical end of the L-shaped connecting rod 121 is fixedly connected to an abutment plate 123 that slides vertically inside the drying chamber 1 via a connecting plate 122. A return spring A124 is fixedly connected between the connecting plate 122 and the drying chamber 1 and is sleeved on the outside of the L-shaped connecting rod 121. An abutment slope 125 is provided on the side of the abutment plate 123 away from the connecting plate 122. An abutment block 126 is fixedly connected to the inside of the sealed door 6 on the outside of the inclined surface 125. The abutment block 126 can press the abutment plate 123 through the abutment inclined surface 125. When the sealed door 6 is closed, the abutment block 126 can press the abutment inclined surface 125 to make the abutment plate 123 move downward. The downward movement of the abutment plate 123 will drive the vertical air supply pipe 72 to move downward through the connecting plate 122 and the L-shaped connecting rod 121 and press the return spring A124, thereby causing the vertical air supply pipe 72 to drive the flipping mechanism 80 to move downward and approach the tea in the drying tray 5.

[0039] The linkage mechanism 120 also includes a linkage gear 127 rotatably connected to the outside of the vertical air supply pipe 72. The linkage gear 127 is fixedly connected to the connecting frame 82 outside the rotating gear 81, that is, the linkage gear 127 drives the evenly distributed rotating gear 81 to rotate synchronously through the connecting frame 82.

[0040] The linkage mechanism 120 also includes vertical sliding grooves 128 symmetrically formed on the inner wall of the drying chamber 1. A sliding plate 129 is slidably connected inside the vertical sliding groove 128. A return spring B130 is fixedly connected between the top of the sliding plate 129 and the vertical sliding groove 128. A magnetic top block B131 is fixedly connected to the bottom of the sliding plate 129. A magnetic bottom block B132 is installed inside the vertical sliding groove 128 below the magnetic top block B131. A horizontal toothed rod 133 is fixedly connected to the outside of the sliding plate 129. The serrations 134 at the bottom of the horizontal toothed rod 133 can move towards... After the vertical air supply pipe 72 rotates outward and resets inward, it drives the turning mechanism 80 downward and approaches the drying tray 5. The vertical air supply pipe 72 moves towards the center and drives the linkage gear 127 to rotate counterclockwise through the serration 134 at the bottom of the horizontal gear 133, so that the turning rake A85 contacts the tea leaves in the drying tray 5 and performs subsequent tea leaf turning. The vertical air supply pipe 72 moves towards the side and drives the linkage gear 127 to rotate clockwise through the serration 134 at the bottom of the horizontal gear 133, so that the turning rake B86 contacts the tea leaves in the drying tray 5 and performs subsequent tea leaf turning.

[0041] The working principle of this embodiment is as follows: Figure 9As shown, after the tea leaves are spread evenly on the drying tray 5, the drying tray 5 is placed on the drying rack 4, so that the drying tray 5 is evenly and symmetrically placed on the drying rack 4. Then the drying rack 4 is pushed into the drying chamber 1, so that the multi-layer drying tray 5 can enter the drying chamber 1. At the same time, the positioning blocks 9 on both sides of the drying chamber 1 can position the drying rack 4. After the multi-layer drying tray 5 enters the drying chamber 1, the air supply nozzle 74, the turning rake A85 and the turning rake B86 of each layer are all located above the corresponding layer of drying tray 5.

[0042] like Figure 4 As shown, the sealing door 6 is closed, causing the abutment block 126 to follow the sealing door 6 and approach the drying chamber 1. The abutment block 126, by pressing the abutment slope 125, drives the abutment plate 123 to move downward. The downward movement of the abutment plate 123, through the connecting plate 122 and the L-shaped connecting rod 121, drives the vertical air supply pipe 72 to move downward and press the reset spring A124. This causes the vertical air supply pipe 72 to drive the multi-layer horizontal air supply branch pipe 73 and its external flipping mechanism 80 to move downward and approach the corresponding drying tray 5.

[0043] Subsequently, the hot air blower 2, dehumidifier 3, and geared motor 75 are started via the control display 11. The hot air blower 2, when started, can deliver hot air into the air supply hose 71, the vertical air supply main pipe 72, and the horizontal air supply branch pipe 73, so that the evenly distributed air supply nozzles 74 can dry the tea leaves inside the drying tray 5 with hot air. The dehumidifier 3, when started, can discharge the moisture generated during the drying process. The geared motor 75, when started, can drive the bidirectional lead screw 76 to rotate slowly. The slowly rotating bidirectional lead screw 76 drives the vertical air supply main pipe 72 to move back and forth at a slow speed through the moving connecting block 77, so that the multi-layer horizontal air supply branch pipe 73 drives the multi-layer air supply nozzles 74 to move back and forth to evenly dry the tea leaves spread flat in each drying tray 5.

[0044] While the vertical air supply pipe 72 drives the multi-layer air supply nozzles 74 to evenly dry the tea leaves spread on each drying tray 5, it will drive the turning mechanism 80 of each layer to move synchronously.

[0045] When the vertical air supply main pipe 72 moves slowly toward the center, it can drive the linkage gear 127 to rotate counterclockwise through the sawtooth 134 at the bottom of the horizontal rack 133. The counterclockwise rotation of the linkage gear 127 drives the evenly distributed rotating gear 81 to rotate counterclockwise synchronously through the connecting frame 82. This causes the vertical rack A83 to drive the turning rake A85 to contact the tea leaves in the drying tray 5 downwards, while the vertical rack B84 drives the turning rake B86 to move upwards away from the tea leaves in the drying tray 5. The position of the turning rake A85 is limited by the magnetic top block A89 and magnetic bottom block A90 that attract each other on the outside of the turning rake B86. That is, while the evenly distributed air supply nozzles 74 perform a uniform drying of the tea leaves laid flat in the drying tray 5, they can also perform a gentle turning of the tea leaves laid flat in the drying tray 5.

[0046] When the vertical air supply pipe 72 moves slowly toward the edge, the sawtooth 134 at the bottom of the horizontal toothed rod 133 drives the linkage gear 127 and the evenly distributed rotating gear 81 to rotate clockwise. This causes the vertical toothed rod A83 to drive the turning rake A85 upward away from the tea leaves in the drying tray 5, while the vertical toothed rod B84 drives the turning rake B86 downward to contact the tea leaves in the drying tray 5. The position of the turning rake B86 is limited by the magnetic top block A89 and magnetic bottom block A90 that attract each other on the outside of the turning rake A85. That is, while the evenly distributed air supply nozzles 74 perform secondary uniform drying on the tea leaves laid flat in the drying tray 5, they can also perform secondary flexible staggered turning on the tea leaves in the drying tray 5.

[0047] The main difference between this embodiment and the prior art is that, in this embodiment, by starting the reduction motor 75, the vertical air supply pipe 72 drives the multi-layer air supply nozzles 74 to move back and forth, uniformly drying the tea leaves spread flat in each drying tray 5. While the evenly distributed air supply nozzles 74 are uniformly drying the tea leaves in the drying tray 5 once, the turning rake A85 can gently turn the tea leaves in the drying tray 5 once. While the evenly distributed air supply nozzles 74 are uniformly drying the tea leaves in the drying tray 5 a second time, the turning rake B86 can gently and staggeredly turn the tea leaves in the drying tray 5 a second time. That is, while uniformly drying is being performed, gentle staggered turning is also being performed. This embodiment can dry the tea leaves evenly and thoroughly, while reducing the production of broken tea leaves. Example 2

[0048] like Figures 1-4 and Figures 8-11As shown, based on Embodiment 1, the drying chamber 1 is uniformly and symmetrically equipped with a dehumidification mechanism 140 for assisting in the discharge of moisture. The dehumidification mechanism 140 includes a longitudinal moisture absorption pipe 141 located at the top of the drying tray 5 and uniformly distributed, and a vertical dehumidification pipe 142 located on the side of the drying rack 4 and uniformly distributed. The uniformly distributed longitudinal moisture absorption pipe 141 is located at the top of each drying tray 5 and at the bottom of the upper drying tray 5. A one-way valve plate 143 is installed at the end of both the longitudinal moisture absorption pipe 141 and the vertical dehumidification pipe 142. The longitudinal moisture absorption pipe 141 can absorb the moisture generated during the drying process of the drying tray 5, and the vertical dehumidification pipe 142 can discharge the moisture absorbed by the longitudinal moisture absorption pipe 141 to the side of the drying rack 4 to promote the rising speed of moisture in the side space.

[0049] The ends of the uniformly distributed longitudinal moisture-absorbing pipes 141 are all fixedly connected to a Z-shaped connecting pipe 144. The end of the Z-shaped connecting pipe 144 away from the drying rack 4 is fixedly connected to a U-shaped connecting pipe 145 that passes through the drying chamber 1. The end of the U-shaped connecting pipe 145 away from the Z-shaped connecting pipe 144 is provided with a piston rod 146 fixedly connected to the vertical air supply pipe 72. The outside of the U-shaped connecting pipe 145 is fixedly connected to a longitudinal connecting pipe 147 fixedly connected to the bottom end of the uniformly distributed longitudinal moisture-absorbing pipes 141. When the vertical air supply pipe 72 moves towards the center, it can drive the piston rod 146 to extend outward, so that the longitudinal moisture-absorbing pipes 141 are in a negative pressure state and absorb the moisture above the drying tray 5. When the vertical air supply pipe 72 moves towards the side, it can drive the piston rod 146 to enter inward, so that the absorbed moisture is discharged through the vertical exhaust pipe 142.

[0050] The working principle of this embodiment is as follows: Based on the first embodiment, when the vertical air supply pipe 72 moves slowly toward the center, it can drive the piston rod 146 to extend outward into the U-shaped connecting pipe 145, so that the interior of the U-shaped connecting pipe 145, the longitudinal connecting pipe 147 and the Z-shaped connecting pipe 144 is in a negative pressure state, thereby allowing the longitudinal moisture absorption pipe 141 to absorb the moisture above the drying tray 5, so as to prevent excessive moisture from rising through the upper drying tray 5 and affecting the drying efficiency of the upper tea leaves.

[0051] When the vertical air supply pipe 72 moves slowly toward the side, it can drive the piston rod 146 inward into the U-shaped connecting pipe 145, so that the moisture absorbed inside the U-shaped connecting pipe 145 enters the interior of the longitudinal connecting pipe 147 and is discharged through the vertical dehumidification pipe 142, thereby promoting the rising speed of moisture in the side space and thus promoting the discharge of moisture.

[0052] The main difference between this embodiment and the prior art is that: in this embodiment, the vertical air supply pipe 72 moves back and forth to achieve uniform drying of multiple layers of tea leaves and flexible staggered turning. The longitudinal moisture absorption pipe 141 and the vertical moisture exhaust pipe 142 can alternately absorb moisture above the drying tray 5 and promote the upward speed of moisture in the side space. This avoids excessive moisture rising through the upper drying tray 5 and affecting the drying efficiency of the upper tea leaves, while also promoting the upward discharge of moisture.

[0053] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency drying equipment for tea processing, comprising a drying chamber (1), a hot air blower (2) symmetrically installed at the bottom and top of the drying chamber (1), a dehumidifier (3), a drying rack (4) placed inside the drying chamber (1), multiple drying trays (5) symmetrically placed inside the drying rack (4), and a sealed chamber door (6) disposed outside the drying chamber (1), characterized in that: The drying chamber (1) is symmetrically equipped with a drying mechanism (70) for uniformly drying tea leaves. The drying mechanism (70) includes a flexible air supply hose (71) that is fixedly connected to the air outlet of the hot air blower (2). The end of the flexible air supply hose (71) away from the hot air blower (2) is fixedly connected to a vertical air supply main pipe (72) that can move horizontally back and forth. The outside of the vertical air supply main pipe (72) is uniformly fixedly connected to a horizontal air supply branch pipe (73) located above the drying tray (5). Air supply nozzles (74) are uniformly arranged on the outside of the horizontal air supply branch pipe (73). The drying chamber (1) is uniformly and symmetrically equipped with a turning mechanism (80) for flexibly turning the tea leaves. The turning mechanism (80) includes rotating gears (81) uniformly rotatably connected to the outside of the horizontal air supply branch pipe (73). The uniformly distributed rotating gears (81) rotate together through a connecting frame (82). A vertical toothed rod A (83) is interleaved on one side of the uniformly distributed rotating gears (81), and a vertical toothed rod B (84) is interleaved on the other side of the uniformly distributed rotating gears (81). Turning rake A (85) and turning rake B (86) are respectively fixedly connected to the bottom of the vertical toothed rod A (83) and the turning rake B (84). The horizontal positions of the rubber rake teeth (87) at the bottom of the turning rake A (85) and the turning rake B (86) are staggered. A linkage mechanism (120) is provided between the drying mechanism (70) and the turning mechanism (80). The linkage mechanism (120) includes an L-shaped connecting rod (121) that slides horizontally with the vertical air supply pipe (72). The vertical end of the L-shaped connecting rod (121) is fixedly connected to an abutment plate (123) that slides vertically inside the drying chamber (1) via a connecting plate (122). The connecting plate (122) is connected to the drying chamber (1). A return spring A (124) is fixedly connected to the L-shaped connecting rod (121) and sleeved on the outside. The abutting plate (123) is provided with an abutting slope (125) on the side away from the connecting plate (122). An abutting block (126) is fixedly connected to the inside of the sealed compartment door (6) on the outside of the abutting slope (125). The abutting block (126) can abut against the abutting plate (123) through the abutting slope (125). The linkage mechanism (1 20) also includes a linkage gear (127) rotatably connected to the outside of the vertical air supply pipe (72). The linkage gear (127) is fixedly connected to the connecting frame (82) outside the rotating gear (81). The linkage mechanism (120) also includes vertical sliding grooves (128) symmetrically opened on the inner wall of the drying chamber (1). A sliding plate (129) is slidably connected inside the vertical sliding groove (128). A return spring B (130) is fixedly connected between the top of the sliding plate (129) and the vertical sliding groove (128). A magnetic suction top block B (131) is fixedly connected to the bottom of the sliding plate (129). A magnetic suction bottom block B (132) installed inside the vertical sliding groove (128) is provided below the magnetic suction top block B (131). A horizontal toothed rod (133) is fixedly connected to the outside of the sliding plate (129). The serrations (134) at the bottom of the horizontal toothed rod (133) can rotate outward and return inward.

2. The high-efficiency drying equipment for tea processing according to claim 1, characterized in that: The drying chamber (1) is symmetrically fixed with positioning blocks (9) for positioning the drying rack (4). The drying chamber (1) is equipped with a temperature and humidity sensor (10). The sealed chamber door (6) is equipped with a control display (11) that is electrically connected to the hot air blower (2), the dehumidifier (3), and the temperature and humidity sensor (10).

3. The high-efficiency drying equipment for tea processing according to claim 2, characterized in that: The drying mechanism (70) also includes a geared motor (75) installed outside the drying chamber (1). The input end of the geared motor (75) is electrically connected to the control display (11). The output end of the geared motor (75) is fixedly connected to a bidirectional lead screw (76) that is slidably connected inside the drying chamber (1). The external thread of the bidirectional lead screw (76) is connected to a movable connecting block (77) that slides vertically with the vertical air supply main pipe (72).

4. The high-efficiency drying equipment for tea processing according to claim 1, characterized in that: The turning mechanism (80) further includes U-shaped telescopic rods (88) that are uniformly fixedly connected to the top of the horizontal air supply branch pipe (73). One output end of the uniformly distributed U-shaped telescopic rods (88) is fixedly connected to the top of the turning rake A (85), and the other output end of the uniformly distributed U-shaped telescopic rods (88) is fixedly connected to the top of the turning rake B (86). Magnetic top blocks A (89) are fixedly connected to both fixed ends of the uniformly distributed U-shaped telescopic rods (88). Magnetic bottom blocks A (90) are uniformly fixedly connected to the tops of the turning rake A (85) and the turning rake B (86).

5. The high-efficiency drying equipment for tea processing according to claim 1, characterized in that: The drying chamber (1) is uniformly and symmetrically equipped with a dehumidification mechanism (140) for assisting in the discharge of moisture. The dehumidification mechanism (140) includes longitudinal moisture-absorbing pipes (141) located on the top of the drying tray (5) and uniformly distributed, and vertical dehumidification pipes (142) located on the side of the drying rack (4) and uniformly distributed. One-way valve plates (143) are installed at the ends of both the longitudinal moisture-absorbing pipes (141) and the vertical dehumidification pipes (142). The ends of the uniformly distributed longitudinal moisture-absorbing pipes (141) are fixedly connected together. A Z-shaped connecting pipe (144) is provided. The end of the Z-shaped connecting pipe (144) away from the drying rack (4) is fixedly connected to a U-shaped connecting pipe (145) that passes through the drying chamber (1). The end of the U-shaped connecting pipe (145) away from the Z-shaped connecting pipe (144) is provided with a piston rod (146) that is fixedly connected to the vertical air supply pipe (72). The outside of the U-shaped connecting pipe (145) is fixedly connected to a longitudinal connecting pipe (147) that is fixedly connected to the bottom end of the uniformly distributed longitudinal moisture absorption pipe (141).

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