Tunnel laminated tea drying device and drying method

Abstract

The present invention discloses a tunnel stacked tea drying device and drying method, which relates to the technical field of tea making, and includes: a casing, which is a long structure, and has a feed hopper and a discharge hole; at least two layers of transmission plates, and the multiple layers of the transmission plates are all tiltedly arranged in the inner cavity of the casing, and the tilt directions of the two adjacent transmission plates are opposite, and the high end of the lower transmission plate extends to the outside of the low end of the upper transmission plate, and the low end of the lower transmission plate extends to the outside of the casing through the discharge hole, and each layer of the transmission plate is provided with a vibrator; a dispersion mechanism, which is arranged inside the casing and corresponds to the feed hopper. In the present invention, the tea leaves discharged through the feed hopper are dispersed to the high end of the uppermost transmission plate by the dispersion mechanism, thereby achieving uniform dispersion of the tea leaves, avoiding the accumulation of tea leaves, and facilitating the drying of the tea leaves and improving the quality of the tea leaves.

Description

Technical Field

[0001] The invention relates to the technical field of tea making, and in particular to a tunnel laminated tea drying device and a drying method. Background Art

[0002] Tea leaves, commonly known as tea, generally include leaves and buds of the tea tree. Tea ingredients include catechins, cholestenone, caffeine, inositol, folic acid, and pantothenic acid, which are beneficial to health. Tea beverages made from tea are one of the three major beverages in the world. Tea originated in China and can be divided into spring tea, summer tea, autumn tea, and winter tea according to the season of harvesting. Reprocessed tea is formed by reprocessing various raw teas or refined teas, including scented tea, compressed tea, extracted tea, medicinal health tea, tea food, tea-containing beverages, etc. At present, the process of tea production and processing includes drying technology.

[0003] After searching, it was found that the Chinese national patent publication number is CN 115615154 B, and the name is a multifunctional tea drying device. In this patent, although the water vapor generated by drying the tea leaves can be extracted into the smoke-water separation tower through the pipeline by starting the vacuum pump, the moisture and air can be separated and discharged separately, so as to achieve the effect of assisting the rapid discharge of water vapor and ensure that the tea leaves can be completely dried, but in this patent, the tea leaves cannot be effectively dispersed. When the tea leaves are piled up, the efficiency of tea drying will be affected, and the quality of the tea leaves will also be affected. Summary of the invention

[0004] The purpose of the present invention is to provide a tunnel stacked tea drying device and a drying method, which solves the problem that tea leaves cannot be effectively dispersed in the existing tea drying device and the tea leaves will pile up, which will affect the drying efficiency of the tea leaves and will also affect the quality of the tea leaves.

[0005] The present invention solves the above technical problems through the following technical solutions, which include:

[0006] A casing, the casing is an elongated structure, and the casing has a feed hopper and a discharge hole;

[0007] At least two layers of transmission plates, the transmission plates of the multiple layers are all tiltedly arranged in the inner cavity of the casing, the tilting directions of the two adjacent transmission plates are opposite, and the high end of the lower transmission plate extends to the outside of the low end of the upper transmission plate, and the low end of the lowest transmission plate extends to the outside of the casing through the discharge hole, and each layer of the transmission plates is provided with a vibrator;

[0008] A dispersing mechanism, which is arranged inside the casing and corresponds to the feed hopper, and is used to disperse the tea leaves discharged through the feed hopper to the high end of the uppermost transmission plate;

[0009] A plurality of blowing mechanisms, each blowing mechanism being arranged on a corresponding transmission plate, and the blowing mechanism being used to blow away the tea leaves on the transmission plate;

[0010] A heater, which is arranged inside the casing and is used to dry tea leaves;

[0011] Infrared temperature sensor, which is used to monitor the temperature inside the casing.

[0012] Preferably, the dispersion mechanism includes a tea storage box corresponding to the feed hopper, and the tea storage box is installed on the inner top of the casing through a sliding member, the bottom of the tea storage box has a screen, and the casing is equipped with a driving member for driving the tea storage box to reciprocate lateral displacement to drive the tea storage box to shake reciprocatingly, so as to achieve uniform scattering of the tea leaves in the tea storage box to the high end of the uppermost transmission plate.

[0013] Preferably, the driving member comprises a motor fixed to the side wall of the casing via a mounting plate, a disc is fixed to the output end of the motor, a connecting rod is hinged to the outer edge of the motor, and an inner end of the connecting rod is hinged to the side wall of the tea storage box.

[0014] Preferably, the sliding member includes two first sliding rods fixed to the inner wall of the casing, and sliding sleeves are slidably provided on the two first sliding rods, and the two sliding sleeves are fixedly connected to the outer side wall of the tea storage box.

[0015] Preferably, the dispersing mechanism further comprises a dispersing member, and the dispersing member comprises two groups of dispersing racks longitudinally slidably arranged on the tea storage box; the two groups of dispersing racks are respectively driven by the pushing member to reciprocate longitudinally;

[0016] The distribution rack comprises a second slide bar slidably arranged on the tea storage box, each of the second slide bars is fixed with a plurality of U-shaped bars, and the U-shaped bars of two adjacent groups of the distribution racks are cross-arranged;

[0017] The two groups of pushing members include two triangular blocks fixed to the first sliding rod, and the two triangular blocks both have inclined surfaces. Push rods are slidably installed on the two outer walls of the tea storage box through mounting sleeves, and the two ends of each group of dispersion racks are respectively fixed to the two push rods in the corresponding group of pushing members. A roller is installed at one end of the push rod close to the triangular block, and a spring is sleeved on the push rod to drive the roller to contact the inclined surface of the triangular block.

[0018] Preferably, a rectangular through hole is provided on the transmission plate, and the blowing mechanism is arranged on the lower side of the rectangular through hole. The blowing mechanism includes two first mounting vertical plates fixed on the lower side of the transmission plate, and a plurality of elongated air nozzles are installed between the two first mounting vertical plates, and the plurality of elongated air nozzles are all connected to an external air pump. A plurality of partitions fixed on the upper surface of the transmission plate are provided at the rectangular through hole, and the wind force blown out by the plurality of elongated air nozzles throws the tea leaves into the air and falls back onto the transmission plate, thereby realizing the re-blowing and sorting of the tea leaves.

[0019] Preferably, the plurality of elongated air nozzles are rotatably mounted on the first mounting vertical plate, and the blowing mechanism further comprises a rotating member for synchronously driving the plurality of elongated air nozzles to rotate;

[0020] The rotating member comprises an electric push rod fixed to the lower side of the transmission plate through a second mounting vertical plate, a rack is fixed to the telescopic end of the electric push rod, and a half gear ring meshing with the rack is fixed to each of the plurality of elongated air nozzles.

[0021] Preferably, the blowing mechanism also includes an extension piece for filling the gap between the uppermost elongated air nozzle and the edge of the rectangular through hole, the extension piece includes an extension plate slidably arranged in the rectangular through hole, and the upper end of the extension plate extends to the lower side of the transmission plate, the extension plate and the lower side of the transmission plate are both fixed with connecting plates, a tension spring is installed between the two connecting plates, a seesaw is rotatably installed between the two first mounting vertical plates via a rotating shaft, the lower end of the seesaw abuts against the end of the rack, and the upper end of the seesaw abuts against the connecting plate fixed on the extension plate.

[0022] Preferably, a material receiving mechanism is provided on the lower side of each of the blowing mechanisms, and the material receiving mechanism comprises a carrier frame fixed to the lower side of the transmission plate by a bracket, a collection box is placed on the carrier frame, and an operating window corresponding to the collection box is opened on the casing.

[0023] The present invention also provides a drying method of the tunnel laminated tea drying device as described above, comprising the following steps:

[0024] Step 1: Put tea leaves into the machine housing through the hopper by an external elevator;

[0025] Step 2: Dispersing tea leaves: The tea leaves falling into the casing will fall into the dispersing mechanism. The driving member drives the tea storage box to move back and forth, and at the same time, the tea leaves in the tea storage box will be dispersed longitudinally through the dispersing member, so that the tea leaves can be evenly dispersed to the high end of the uppermost transmission plate through the screen.

[0026] Step 3: Transmission and drying of tea leaves: operate the heater and the vibrator. The operation of the vibrator causes the transmission plate to vibrate, and the tea leaves on the transmission plate will gradually be transmitted downward along the transmission plate; the heater increases the temperature inside the casing to dry the tea leaves during transmission, and the temperature inside the casing is monitored by an infrared temperature sensor;

[0027] Step 4: Blowing the tea leaves apart: When the tea leaves are transported through the blowing mechanism, the blowing mechanism will throw the tea leaves into the air and drop them back onto the transmission plate, thus achieving re-blowing and sorting of the tea leaves;

[0028] Step 5: Discharging tea leaves: The tea leaves are dried during the process of being transported through multiple transport plates, and are finally discharged from the casing through the discharge hole.

[0029] Compared with the prior art, the beneficial effects of the present invention are:

[0030] In the present invention, the tea leaves discharged through the hopper are dispersed to the upper end of the uppermost transmission plate by the dispersion mechanism, thereby achieving uniform dispersion of the tea leaves and avoiding accumulation of the tea leaves, which is beneficial to drying the tea leaves and improving the quality of the tea leaves.

[0031] The U-shaped rods of two adjacent groups of dispersion racks in the dispersion mechanism are cross-arranged, and the two groups of dispersion racks move in opposite directions. The tea leaves are first dispersed preliminarily through a plurality of slide bars, so that the tea leaves can be dispersed as much as possible and fall into the tea storage box. Subsequently, the movement of the two groups of dispersion racks will push the tea leaves in the tea storage box, so that the tea leaves in the tea storage box can be evenly spread, thereby achieving further dispersion and avoiding the accumulation of tea leaves.

[0032] The gas generated by the air pump in the present invention will be discharged from the long flat mouth to form an upwardly inclined air flow wall. The wind force blown by the plurality of long air nozzles will throw the tea leaves into the air and fall back onto the transmission plate, thereby achieving the re-dispersion and sorting of the tea leaves.

[0033] 4. The angle of the long air nozzle is adjustable to meet different processing requirements. At the same time, the extension piece can ensure that the tea leaves transmitted from the upstream of the transmission plate can fall through the extension plate to the corresponding air flow wall blown out by the uppermost long air nozzle. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0035] Figure 2 for Figure 1 A schematic diagram of a cross-sectional three-dimensional structure;

[0036] Figure 3 It is a cross-sectional structural schematic diagram of the present invention;

[0037] Figure 4 for Figure 2 Schematic diagram of the three-dimensional structure of the central dispersion mechanism;

[0038] Figure 5 for Figure 2 A schematic diagram of the main structure of the central blowing mechanism;

[0039] Figure 6 for Figure 5 The enlarged structural diagram at A in the middle;

[0040] The numbers in the figure represent:

[0041] 1- housing; 11- hopper; 12- support leg; 13- discharge hole;

[0042] 2-dispersion mechanism; 211-motor; 212-disk; 213-connecting rod; 221-first slide rod; 222-sleeve; 23-tea storage box; 231-screen; 232-long slide hole; 241-second slide rod; 242-U-shaped rod; 251-push rod; 252-spring; 253-roller; 254-triangular block;

[0043] 3-transmission plate; 31-vibrator; 32-rectangular through hole;

[0044] 4-blowing mechanism; 41-long air nozzle; 421-rack; 422-half gear ring; 423-electric push rod; 431-rocker; 432-tension spring; 433-slide; 434-extension plate; 435-connecting plate; 44-partition plate;

[0045] 51-carrying frame; 52-collection box; 53-operation window;

[0046] 6- Heater;

[0047] 7- Infrared temperature sensor. DETAILED DESCRIPTION

[0048] The above and other technical features and advantages of the present invention are described in more detail below in conjunction with the accompanying drawings.

[0049] This embodiment provides a technical solution: a tunnel laminated tea drying device, such as Figure 1-3 As shown, it includes a housing 1, at least two layers of transmission plates 3, a dispersion mechanism 2, multiple groups of blowing mechanisms 4, a heater 6 and an infrared temperature sensor 7. The transmission plate 3 is a plate-like structure or a dense mesh structure, and a protective structure is provided at the edge of the transmission plate 3 to prevent tea leaves from falling. All electrical appliances in the device are controlled and operated by an external control system. A plurality of infrared temperature sensors 7 are installed to monitor the temperature of various positions inside the housing 1 and transmit data to the control system. The control system can adjust the heater 6 according to the temperature data sent back by the infrared temperature sensor 7.

[0050] like Figure 1-3 As shown, the casing 1 is a long structure and has supporting legs 12 at the bottom to support the casing 1. The casing 1 has a feed hopper 11 and a discharge hole 13. The feed hopper 11 is located on one side of the top of the casing 1 and is used to cooperate with the elevator to input tea leaves. The heater 6 is arranged inside the casing 1 to increase the temperature inside the casing 1 to achieve drying of the tea leaves.

[0051] like Figure 1-3 As shown, the multi-layer transmission plates 3 are all tiltedly arranged in the inner cavity of the casing 1 (in this embodiment, two layers of transmission plates 3 are taken as an example for explanation), and the tilt angle is 2° to 4°, the tilt directions of the two adjacent transmission plates 3 are opposite, and the high end of the lower transmission plate 3 extends to the outside of the low end of the upper transmission plate 3 (in this embodiment, the high end of the transmission plate 3 is the end of the transmission plate 3 with a higher height, and the low end of the transmission plate 3 is the end of the transmission plate 3 with a lower height). This arrangement can make the tea leaves discharged from the upper transmission plate 3 fall smoothly onto the lower transmission plate 3, and the low end of the lowest transmission plate 3 extends to the outside of the casing 1 through the discharge hole 13, that is, the finally dried tea leaves are discharged from the casing 1, and each layer of the transmission plate 3 is provided with a vibrator 31. When the vibrator 31 is in operation, it can drive the transmission plate 3 to vibrate, so that the tea leaves on the transmission plate 3 move slowly along its length direction, and the speed of the tea leaves moving can be adjusted according to the power of the vibration of the vibrator 31.

[0052] like Figure 2-4 As shown, the dispersing mechanism 2 is arranged inside the casing 1 and corresponds to the feed hopper 11, that is, the tea leaves entering through the feed hopper 11 will fall into the dispersing mechanism 2, and the dispersing mechanism 2 is used to disperse the tea leaves discharged through the feed hopper 11 to the high end of the uppermost transmission plate 3, thereby achieving uniform dispersion of the tea leaves and avoiding accumulation of the tea leaves, which is beneficial to the drying of the tea leaves and improving the quality of the tea leaves.

[0053] like Figure 2-4 As shown, the dispersing mechanism 2 includes a tea storage box 23 corresponding to the feed hopper 11, and the tea storage box 23 is installed on the inner top of the casing 1 through a sliding member. When the tea storage box 23 moves, it always overlaps with the feed hopper 11 to ensure that the tea leaves can always fall smoothly into the tea storage box 23. The bottom of the tea storage box 23 is provided with a screen 231, and the mesh number of the screen 231 is sufficient for the tea leaves to pass through. A driving member for driving the tea storage box 23 to reciprocate and laterally displace is installed on the casing 1 to drive the tea storage box 23 to reciprocate and shake, so that the tea leaves in the tea storage box 23 are evenly scattered to the high end of the uppermost transmission plate 3.

[0054] like Figure 2-4As shown, the driving member includes a motor 211 fixed to the side wall of the housing 1 through a mounting plate, a disc 212 is fixed to the output end of the motor 211, a connecting rod 213 is hinged to the outer edge of the motor 211, and the inner end of the connecting rod 213 is hinged to the side wall of the tea storage box 23. When the motor 211 is running, the disc 212 is driven to rotate continuously, and then driven by the connecting rod 213, the tea storage box 23 is pulled to reciprocate horizontal displacement.

[0055] like Figure 4 As shown, the sliding member includes two first sliding rods 221 fixed to the inner wall of the casing 1, and the two first sliding rods 221 are slidably provided with sliding sleeves 222, and the two sliding sleeves 222 are fixedly connected to the outer wall of the tea storage box 23 to realize the lateral sliding of the tea storage box 23.

[0056] like Figure 4 As shown, the dispersion mechanism 2 also includes a dispersion member, which includes two groups of dispersion racks longitudinally slidably arranged on the tea storage box 23; the two groups of dispersion racks are driven to move reciprocatingly longitudinally by pushing members respectively; the dispersion rack includes a second slide bar 241 slidably arranged on the tea storage box 23, specifically: long slide holes 232 are opened on both sides of the tea storage box 23, both ends of the second slide bar 241 are slidably penetrated and installed in the two long slide holes 232, and each second slide bar 241 is fixed with a plurality of U-shaped rods 242, and the lower ends of the U-shaped rods 242 are close to the screen 231, and the U-shaped rods 242 of two adjacent groups of dispersion racks are cross-arranged, and the two groups of dispersion racks move in opposite directions. The moving strokes of the U-shaped rods 242 of two adjacent dispersion racks have overlapping parts, so that the tea leaves in the tea storage box 23 can be evenly spread to avoid the accumulation of tea leaves.

[0057] like Figure 4 As shown, the two groups of pushing members include two triangular blocks 254 fixed to the first sliding rod 221 (it should be noted that the two groups of pushing members are symmetrically arranged, that is, the triangular blocks 254 of the two groups of pushing members are respectively fixed to the first sliding rods 221 on both sides), the two triangular blocks 254 have inclined surfaces, and the inclined surfaces of the triangular blocks 254 on each first sliding rod 221 are arranged in the same direction. The two outer side walls of the tea storage box 23 are slidably installed with push rods 251 through mounting sleeves, and the two ends of each group of dispersion racks are respectively fixed to the two push rods 251 in the corresponding group of pushing members, and the push rod 251 is close to one end of the triangular block 254. A roller 253 is installed on the push rod 251, and a spring 252 is sleeved on the push rod 251 to drive the roller 253 to contact the inclined surface of the triangular block 254. The setting of the roller 253 can reduce the friction between the push rod 251 and the inclined surface of the triangular block 254, so that the contact between the two is smoother.

[0058] When the tea storage box 23 is reciprocated by the driving member, the push rod 251 will be reciprocated longitudinally under the action of the inclined surface of the triangular block 254 and the spring 252, and will further drive the corresponding dispersion rack to move, and at the same time, the movement directions of the two groups of dispersion members are opposite. When the tea leaves are discharged into the hopper 11, the tea leaves are first dispersed by multiple second slide bars 241, so that the tea leaves can be dispersed as much as possible and fall into the tea storage box 23. Subsequently, the movement of the two groups of dispersion racks will push and confuse the tea leaves in the tea storage box 23 to achieve further dispersion, and because the two groups of moving strokes have overlapping parts, the push of the two groups of dispersion racks on the tea leaves will overlap, so that the tea leaves are evenly distributed in the tea storage box 23; further, the reciprocating lateral movement of the tea storage box 23 will cause the tea leaves in the tea storage box 23 to fall through the screen 231 and evenly scatter to the high end of the uppermost transmission plate 3, ensuring that the tea leaves can be dried and the quality of the tea leaves is ensured.

[0059] like Figure 5 and Figure 6 As shown, each group of blowing mechanisms 4 is respectively arranged on the corresponding transmission plate 3, and the blowing mechanisms 4 are used to blow away the tea leaves on the transmission plate 3; rectangular through holes 32 are opened on the transmission plate 3, and the lateral spacing of the rectangular through holes 32 is set according to needs. The blowing mechanisms 4 are arranged on the lower side of the rectangular through holes 32, and the blowing mechanisms 4 include two first mounting vertical plates fixed to the lower side of the transmission plate 3, and a plurality of elongated air nozzles 41 are installed between the two first mounting vertical plates, and the plurality of elongated air nozzles 41 are all connected to the external air pump, and the elongated air nozzle 41 has a long cylindrical portion and a long flat mouth portion connected to the long cylindrical portion.

[0060] The gas generated by the air pump will be discharged from the long flat mouth to form an upward inclined air flow wall. The wind force blown by the multiple long air nozzles 41 will throw the tea leaves into the air and fall back onto the transmission plate 3, so as to realize the re-blowing and sorting of the tea leaves, and the tea leaves can also be turned over. It should be noted that the wind force blown by the long air nozzle 41 can only blow the tea leaves in an arc movement, and will eventually fall onto the transmission plate 3 again. Therefore, when designing, it is necessary to pay attention to the size of the wind force of the long air nozzle 41. A plurality of partitions 44 fixed to the upper surface of the transmission plate 3 are provided at the rectangular through hole 32. The plurality of partitions 44 can prevent the tea leaves from being concentrated when being blown.

[0061] like Figure 5 and Figure 6As shown, in order to achieve the adjustable angle of the airflow wall blown out by the multiple long air nozzles 41, the multiple long air nozzles 41 are all rotatably mounted on the first mounting vertical plate, and the blowing mechanism 4 also includes a rotating member that synchronously drives the multiple long air nozzles 41 to rotate; the rotating member includes an electric push rod 423 fixed to the lower side of the transmission plate 3 through the second mounting vertical plate, the telescopic end of the electric push rod 423 is fixed with a rack 421, and the multiple long air nozzles 41 are all fixed with a half gear ring 422 that meshes with the rack 421. When the electric push rod 423 is operated, the rack 421 can be driven to move, and further cooperated with the multiple half gear rings 422, the multiple long air nozzles 41 can be synchronously driven to rotate, thereby adjusting the angle of the airflow wall blown out by the multiple long air nozzles 41.

[0062] like Figure 5 and Figure 6 As shown, since the angles of the multiple long air nozzles 41 are adjusted, in order to ensure that the tea leaves transmitted downward from the upstream of the transmission plate 3 can be smoothly blown to the air flow wall blown out by the long air nozzles 41 (the upstream in this embodiment is the high end side of the transmission plate 3, and the downstream is the low end side of the transmission plate 3), an extension piece can be added to fill the gap between the uppermost long air nozzle 41 and the edge of the rectangular through hole 32. The extension member includes an extension plate 434 slidably arranged in the rectangular through hole 32. Specifically, sliding grooves 433 are provided on both side walls of the rectangular through hole 32, and the two ends of the extension plate 434 are respectively slidably arranged in the two sliding grooves 433. The upper end of the extension plate 434 extends to the lower side of the transmission plate 3, so that the tea leaves transmitted from the upstream of the transmission plate 3 can be transmitted to the extension plate 434. The extension plate 434 and the lower side of the transmission plate 3 are fixed with connecting plates 435. A tension spring 432 is installed between the two connecting plates 435. The force of the tension spring 432 will cause the extension plate 434 to shrink toward the lower side of the transmission plate 3. A seesaw 431 is rotatably installed between the two first mounting vertical plates through a rotating shaft. The lower end of the seesaw 431 abuts against the end of the rack 421, and the upper end of the seesaw 431 abuts against the connecting plate 435 fixed on the extension plate 434.

[0063] When the telescopic end of the electric push rod 423 is extended, the multiple long air nozzles 41 will be driven to rotate toward the downstream of the transmission plate 3, so that the air flow wall of the long air nozzle 41 will also move away from the upper edge position of the rectangular through hole 32. At this time, the rack 421 pushes the lower end of the seesaw 431, so that the upper end of the seesaw 431 flips toward the downstream of the transmission plate 3, and then extends the extension plate 434 toward the downstream of the transmission plate 3, so as to ensure that the tea leaves transmitted from the upstream of the transmission plate 3 can fall through the extension plate 434 to correspond to the air flow wall blown out by the uppermost long air nozzle 41; otherwise, the extension plate 434 will shrink toward the upstream of the transmission plate 3 due to the action of the tension spring 432.

[0064] like Figure 2 and Figure 3As shown, a material receiving mechanism is arranged on the lower side of each blowing mechanism 4, and the material receiving mechanism can catch and collect the tea leaves falling through the rectangular through hole 32. The material receiving mechanism includes a supporting frame 51 fixed to the lower side of the transmission plate 3 by a bracket, and the supporting frame 51 can also be fixed to the inner wall of the casing 1. A collecting box 52 is placed on the supporting frame 51, and a handle is arranged on the side of the collecting box 52 to facilitate pulling out the collecting box 52. An operating window 53 corresponding to the collecting box 52 is opened on the casing 1, and the collecting box 52 is taken out or put in through the operating window 53. In order to prevent the heat in the casing 1 from dissipating, a sealing structure, such as a sealing plate or a sealing curtain, can be arranged on the operating window 53.

[0065] The present invention also provides a drying method for tea leaves in the tunnel laminated tea drying device as described above, Figure 1-6 As shown, the following steps are included:

[0066] Step 1: Add tea leaves: Use an external elevator to put tea leaves into the housing 1 through the hopper 11;

[0067] Step 2: Dispersing tea leaves: The tea leaves falling into the casing 1 will fall into the dispersing mechanism 2. The driving member drives the tea storage box 23 to move back and forth, and the tea leaves in the tea storage box 23 will be dispersed longitudinally through the dispersing member, so that the tea leaves can be evenly dispersed to the high end of the uppermost transmission plate 3 through the screen 231.

[0068] Step 3: Transmission and drying of tea leaves: operate the heater 6 and the vibrator 31. The operation of the vibrator 31 causes the transmission plate 3 to vibrate, and the tea leaves on the transmission plate 3 are gradually transmitted downward along the transmission plate 3. The heater 6 increases the temperature in the housing 1 to dry the tea leaves during transmission, and the temperature in the housing 1 is monitored by the infrared temperature sensor 7.

[0069] Step 4: Blowing the tea leaves apart: When the tea leaves are transported through the blowing mechanism 4, the blowing mechanism 4 will throw the tea leaves into the air and drop them back onto the transmission plate 3, so as to realize the re-blowing and sorting of the tea leaves;

[0070] Step 5: Discharging the tea leaves: The tea leaves are dried during the process of being transported by the multiple transport plates 3 , and are finally discharged from the housing 1 through the discharge hole 13 .

[0071] The above are only preferred embodiments of the present invention, which are only illustrative and not restrictive. Those skilled in the art understand that many changes, modifications, and even equivalences may be made to the present invention within the spirit and scope defined by the claims, but all of them will fall within the scope of protection of the present invention.

Claims

1. A tunnel laminated tea drying device, characterized in that: include: A casing (1), the casing (1) being an elongated structure, and the casing (1) having a material inlet hopper (11) and a material discharge hole (13); At least two layers of transmission plates (3), the plurality of transmission plates (3) are all arranged obliquely in the inner cavity of the casing (1), the inclination directions of two adjacent transmission plates (3) are opposite, and the high end of the lower transmission plate (3) extends to the outside of the low end of the upper transmission plate (3), and the low end of the lowest transmission plate (3) passes through the discharge hole (13) and extends to the outside of the casing (1), and each layer of the transmission plates (3) is provided with a vibrator (31); A dispersion mechanism (2), the dispersion mechanism (2) being arranged inside the housing (1) and corresponding to the feed hopper (11), the dispersion mechanism (2) being used to disperse the tea leaves discharged through the feed hopper (11) to the upper end of the uppermost transmission plate (3); A plurality of groups of blowing mechanisms (4), each group of the blowing mechanisms (4) being respectively arranged on a corresponding transmission plate (3), and the blowing mechanisms (4) being used to blow away the tea leaves on the transmission plate (3); A heater (6), the heater (6) being arranged inside the casing (1) and being used for drying tea leaves; An infrared temperature sensor (7) for monitoring the temperature inside the housing (1); The transmission plate (3) is provided with a rectangular through hole (32), the blowing mechanism (4) is arranged at the lower side of the rectangular through hole (32), the blowing mechanism (4) comprises two first mounting vertical plates fixed to the lower side of the transmission plate (3), a plurality of elongated air nozzles (41) are installed between the two first mounting vertical plates, and the plurality of elongated air nozzles (41) are all connected to an external air pump; The plurality of elongated air nozzles (41) are all rotatably mounted on the first mounting vertical plate, and the blowing mechanism (4) further comprises a rotating member for synchronously driving the plurality of elongated air nozzles (41) to rotate; the rotating member comprises an electric push rod (423) fixed to the lower side of the transmission plate (3) via the second mounting vertical plate, a rack (421) being fixed to the telescopic end of the electric push rod (423), and a half gear ring (422) meshing with the rack (421) being fixed to the plurality of elongated air nozzles (41); The blowing mechanism (4) further comprises an extension member for filling a gap between the uppermost elongated air nozzle (41) and an edge of the rectangular through hole (32); the extension member comprises an extension plate (434) slidably arranged in the rectangular through hole (32); the upper end of the extension plate (434) extends to the lower side of the transmission plate (3); a connecting plate (435) is fixed to the lower side of the extension plate (434) and the transmission plate (3); a tension spring (432) is installed between the two connecting plates (435); a seesaw (431) is rotatably installed between the two first mounting vertical plates via a rotating shaft; the lower end of the seesaw (431) abuts against the end of the rack (421); and the upper end of the seesaw (431) abuts against the connecting plate (435) fixed to the extension plate (434).

2. The tunnel laminated tea drying device according to claim 1, characterized in that: The dispersion mechanism (2) comprises a tea storage box (23) corresponding to the feed hopper (11), and the tea storage box (23) is mounted on the inner top of the casing (1) via a sliding member, and the bottom of the tea storage box (23) has a screen (231). The casing (1) is provided with a driving member for driving the tea storage box (23) to reciprocate in lateral displacement, so as to drive the tea storage box (23) to reciprocate and shake, so as to achieve uniform scattering of tea leaves in the tea storage box (23) to the high end of the uppermost transmission plate (3).

3. The tunnel laminated tea drying device according to claim 2, characterized in that: The driving member comprises a motor (211) fixed to a side wall of the casing (1) via a mounting plate, a disc (212) being fixed to an output end of the motor (211), a connecting rod (213) being hinged to an outer edge of the motor (211), and an inner end of the connecting rod (213) being hinged to a side wall of a tea storage box (23).

4. The tunnel laminated tea drying device according to claim 2, characterized in that: The sliding member comprises two first sliding rods (221) fixed to the inner wall of the housing (1), a sliding sleeve (222) being slidably arranged on the two first sliding rods (221), and the two sliding sleeves (222) are fixedly connected to the outer wall of the tea storage box (23).

5. The tunnel laminated tea drying device according to claim 3, characterized in that: The dispersion mechanism (2) further comprises a dispersion member, wherein the dispersion member comprises two groups of dispersion racks longitudinally slidably arranged on the tea storage box (23); the two groups of dispersion racks are respectively driven by the pusher to reciprocate longitudinally; The distribution rack comprises a second sliding rod (241) slidably arranged on the tea storage box (23), a plurality of U-shaped rods (242) are fixed on each of the second sliding rods (241), and the U-shaped rods (242) of two adjacent groups of the distribution racks are cross-arranged; The two groups of pushing members include two triangular blocks (254) fixed to the first sliding rod (221), and the two triangular blocks (254) both have inclined surfaces. Push rods (251) are slidably mounted on the two outer side walls of the tea storage box (23) through mounting sleeves, and the two ends of each group of the dispersion racks are respectively fixed to the two push rods (251) in the corresponding group of pushing members. A roller (253) is mounted on one end of the push rod (251) close to the triangular block (254), and a spring (252) is sleeved on the push rod (251) for driving the roller (253) to contact the inclined surface of the triangular block (254).

6. The tunnel laminated tea drying device according to claim 1, characterized in that: A plurality of partitions (44) fixed to the upper surface of the transmission plate (3) are provided at the rectangular through holes (32), and the wind force blown out by the plurality of long air nozzles (41) throws the tea leaves into the air and causes them to fall back onto the transmission plate (3), thereby achieving re-dispersion and sorting of the tea leaves.

7. The tunnel-type laminated tea drying device according to claim 1, characterized in that: A material receiving mechanism is provided on the lower side of each of the blowing mechanisms (4), the material receiving mechanism comprising a support frame (51) fixed to the lower side of the transmission plate (3) via a bracket, a collection box (52) being placed on the support frame (51), and an operating window (53) corresponding to the collection box (52) being provided on the housing (1).

8. A drying method for tea leaves using a tunnel-laminated tea drying device as claimed in any one of claims 1 to 7, characterized in that: The following steps are involved: Step 1: Adding tea leaves: using an external elevator to feed tea leaves through a hopper (11) into the interior of the housing (1); Step 2, dispersing tea leaves: the tea leaves falling into the casing (1) will fall into the dispersing mechanism (2), and the driving member will drive the tea storage box (23) to move back and forth, and at the same time, the tea leaves in the tea storage box (23) will be dispersed longitudinally through the dispersing member, so that the tea leaves can be evenly dispersed to the high end of the uppermost transmission plate (3) through the screen (231); Step 3: transmission and drying of tea leaves: operating the heater (6) and the vibrator (31); the operation of the vibrator (31) causes the transmission plate (3) to vibrate, and the tea leaves on the transmission plate (3) are gradually transmitted downward along the transmission plate (3); the heater (6) increases the temperature inside the casing (1) to dry the tea leaves during the transmission process, and the temperature inside the casing (1) is monitored by the infrared temperature sensor (7); Step 4: Blowing the tea leaves apart: When the tea leaves are transported through the blowing mechanism (4), the blowing mechanism (4) will throw the tea leaves into the air and drop them back onto the transport plate (3), thereby re-blowing and re-sorting the tea leaves. Step 5: Discharging the tea leaves: The tea leaves are dried during the process of being transported by the multiple transport plates (3) and are finally discharged from the casing (1) through the discharge hole (13).

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