Tea withering machine

Abstract

The utility model relates to the technical field of tea production, in particular to a tea withering machine which comprises a withering box and a supporting frame, a withering groove is formed in one side in the withering box, a tea placing net rack is arranged in the withering groove, an exhaust fan and a heating box are arranged in one side of the withering box, and an air distributing pipe extending to one side of the bottom in the withering groove is arranged at the rear end of the heating box. An electric cylinder is arranged at the top of the supporting frame, a top cover matched with the withering groove is arranged at the power end of the bottom of the electric cylinder, a pipeline is arranged on one side of the sealing top cover, and the air distribution pipe extends to the outside and is communicated with an air conveying hose of the pipeline. Compared with the prior art, the tea leaf withering device has the advantages that the device can perform high-efficiency and high-quality withering operation on tea leaves placed on the tea leaf placing net rack through hot air circulation with a sealed stroke and a uniform air outlet structure, and meanwhile, the energy consumption of equipment can be reduced through the hot air circulation.

Description

Technical Field

[0001] The utility model relates to the technical field of tea production, in particular to a tea withering machine. Background Art

[0002] Tea withering is an important step in the tea-making process. Its main purpose is to control the evaporation of water in the tea leaves, soften and oxidize them, thereby promoting chemical reactions inside the tea leaves and forming a unique aroma and taste.

[0003] In the prior art, tea withering generally adopts natural withering and mechanical withering. Natural withering generally involves placing the tea leaves directly on a bamboo dustpan and then withering them through natural wind and natural light. Although the tea produced by this type of withering is of good quality, the efficiency is relatively low. Therefore, more tea farmers are now beginning to use tea withering machines for rapid withering. However, conventional withering machines simply use hot air blowing. The tea produced by simple mechanical hot air has low quality and uneven withering. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a tea withering machine for tea production in view of the deficiencies raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the technical solution provided by the utility model is as follows: a tea withering machine comprises a withering box, a withering trough is provided on one side of the withering box, a tea-laying rack is connected in the withering trough, an exhaust fan and a heating box are connected inside one side of the withering box, an exhaust fan is connected with an exhaust pipe and an air outlet pipe connected with the heating box, a multi-layer electric heating net is connected in the heating box, an air distribution pipe extending to one side of the bottom of the withering trough is connected at the rear end of the heating box, a plurality of air guide pipes extending to the bottom of the tea-laying rack are connected to the air distribution pipe, and a plurality of air outlets are provided on the top of the air guide pipe;

[0006] A support frame is connected to the top of the outer side of the withering box, an electric cylinder is connected to the top of the support frame, a top cover matching the withering trough is connected to the bottom power end of the electric cylinder, a connecting pipe is connected to one side of the sealed top cover, and the gas distribution pipe extends to an external gas hose connected to the connecting pipe.

[0007] Furthermore, one side of the withering box is connected to an air inlet that cooperates with the exhaust fan, the air inlet is connected to a coarse filter, and the withering box is connected to a fine filter plate between the air inlet and the exhaust fan to facilitate filtering of garbage dust particles in the gas.

[0008] Furthermore, the top of the sealing top cover is connected with a plurality of limiting sleeve rods penetrating the top of the support frame, so as to facilitate the stable lifting and lowering operation of the sealing top cover.

[0009] Furthermore, a first temperature sensor and a second temperature sensor are respectively connected inside the heating box and inside the sealing top cover to facilitate temperature sensing operations.

[0010] Furthermore, a pressure sensor is connected to the bottom of the sealing top cover, and a pressure relief valve pipe is connected to the top of the sealing top cover to prevent excessive internal pressure.

[0011] Furthermore, a sealing rubber ring is connected to the outer side of the bottom of the sealing top cover to facilitate the sealing state of the sealing top cover and the withering trough.

[0012] The advantage of the tea withering machine of the utility model over the prior art is that the device can perform efficient and high-quality withering operations on tea leaves placed on a tea placing grid rack through a hot air circulation that can be sealed and a uniform air outlet structure, and at the same time, the energy consumption of the equipment can be reduced through this hot air circulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a first structural schematic diagram of a tea withering machine of the utility model.

[0014] Figure 2 This is a second structural schematic diagram of a tea withering machine of the utility model.

[0015] Figure 3 The utility model is a schematic diagram of a top sectional structure of a withering box of a tea withering machine.

[0016] Figure 4 The utility model is a schematic diagram of the structure of a support frame of a tea withering machine when viewed from above.

[0017] As shown in the figure: 1. Withering box; 2. Withering trough; 3. Exhaust fan; 4. Heating box; 5. Exhaust duct; 6. Air outlet duct; 7. Electric heating net; 8. Air inlet; 9. Coarse filter; 10. Fine filter plate; 11. Air distribution pipe; 12. Air guide pipe; 13. Air outlet; 14. Support frame; 15. Electric cylinder; 16. Sealing top cover; 17. Limit sleeve rod; 18. Connecting pipe; 19. Gas supply hose; 20. First temperature sensor; 21. Second temperature sensor; 22. Pressure sensor; 23. Pressure relief valve pipe; 24. Sealing rubber ring; 25. Tea leaves placement rack. DETAILED DESCRIPTION

[0018] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0019] Combined with Figure 1-4A tea withering machine comprises a withering box 1, a withering trough 2 is provided on one side of the withering box 1, a tea placing rack 25 is connected in the withering trough 2, an exhaust fan 3 and a heating box 4 are connected inside one side of the withering box 1, the exhaust fan 3 is connected with an exhaust pipe 5 and an air outlet pipe 6 connected with the heating box 4, gas can be drawn into the heating box 4 through the exhaust fan 3, an air inlet 8 matching the exhaust fan 3 is connected on one side of the withering box 1, a coarse filter 9 is connected in the air inlet 8, and the coarse filter 9 can pass through the To filter larger garbage, a fine filter screen 10 is connected between the air inlet 8 and the exhaust fan 3 in the withering box 1. Fine dust can be filtered through the fine filter screen 10, and the mesh size can be set as needed. A multi-layer electric heating net 7 is connected in the heating box 4. A first temperature sensor 20 is connected in the heating box 4. Temperature control input can be performed through the multi-layer electric heating net 7 and the first temperature sensor 20, that is, multiple electric heating nets 7 can be started at the same time in the heating stage, and fewer electric heating nets 7 can be started in the insulation input stage.

[0020] During specific implementation: filtered gas can be drawn into the heating box 4 through the exhaust fan 3, and then temperature control input can be performed through the multi-layer electric heating network 7 in cooperation with the first temperature sensor 20.

[0021] Combined with Figure 3 The rear end of the heating box 4 is connected with an air distribution pipe 11 extending to one side of the bottom of the withering tank 2. The air distribution pipe 11 is connected with multiple air guide pipes 12 extending to the bottom of the tea placing rack 25. The top of the air guide pipe 12 is provided with multiple air outlets 13.

[0022] In specific implementation, hot gas can be input through multiple gas distribution pipes 11, and then uniform gas transmission upward can be ensured through multiple evenly distributed gas guide pipes 12 and multiple evenly distributed gas outlets 13.

[0023] Combined with Figure 4The top of the outer side of the withering box 1 is connected with a support frame 14, the top of the support frame 14 is connected with an electric cylinder 15, the bottom power end of the electric cylinder 15 is connected with a sealing top cover 16 that matches the withering trough 2, and the electric cylinder 15 can drive the sealing cover 16 to seal the withering trough 2. The top of the sealing top cover 16 is connected with a plurality of limiting sleeve rods 17 that penetrate the top of the support frame 14. The plurality of limiting sleeve rods 17 can ensure that the sealing top cover 16 can be stably lifted and lowered. The bottom outer side of the sealing top cover 16 is connected with a sealing The rubber ring 24 can ensure the sealing of the withering trough 2. A connecting pipe 18 is connected to one side of the sealing top cover 16. The air distribution pipe 11 extends to an air hose 19 outside that is connected to the connecting pipe 18. The internal hot air circulation can be ensured through pipeline transportation, which can ensure uniform withering and energy saving. A pressure sensor 22 is connected to the bottom of the sealing top cover 16, a pressure relief valve pipe 23 is connected to the top of the sealing top cover 16, and a second temperature sensor 21 is connected to the inside of the sealing top cover 16.

[0024] During specific implementation: before withering, starting the electric cylinder 15 can drive the sealing cover 16 to seal the withering trough 2, starting the exhaust fan 3 to draw the filtered gas into the heating box 4, and hot air can be input through multiple gas distribution pipes 11, and then the multiple evenly distributed air guide pipes 12 and the multiple evenly distributed air outlets 13 can ensure uniform upward gas supply, and then the gas passes through the sealing top cover 16 and the pipeline to carry out hot air circulation and transportation.

[0025] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A tea withering machine, comprising a withering box (1), characterized in that: A withering trough (2) is provided on one side of the withering box (1), a tea-leaf placing rack (25) is connected to the withering trough (2), an exhaust fan (3) and a heating box (4) are connected to one side of the withering box (1), the exhaust fan (3) is connected to an exhaust pipe (5) and an air outlet pipe (6) connected to the heating box (4), a multi-layer electric heating net (7) is connected to the heating box (4), an air distribution pipe (11) extending to one side of the bottom of the withering trough (2) is connected to the rear end of the heating box (4), the air distribution pipe (11) is connected to a plurality of air guide pipes (12) extending to the bottom of the tea-leaf placing rack (25), and a plurality of air outlets (13) are provided on the top of the air guide pipe (12); The outer top of the withering box (1) is connected to a support frame (14), the top of the support frame (14) is connected to an electric cylinder (15), the bottom power end of the electric cylinder (15) is connected to a sealing top cover (16) that matches the withering trough (2), one side of the sealing top cover (16) is connected to a connecting pipe (18), and the gas distribution pipe (11) extends to an external gas supply hose (19) that is connected to the connecting pipe (18).

2. A tea withering machine according to claim 1, characterized in that: One side of the withering box (1) is connected to an air inlet (8) cooperating with the exhaust fan (3), the air inlet (8) is connected to a coarse filter (9), and the withering box (1) is connected to a fine filter plate (10) between the air inlet (8) and the exhaust fan (3).

3. A tea withering machine according to claim 1, characterized in that: The top of the sealing top cover (16) is connected to a plurality of limiting sleeve rods (17) that penetrate the top of the supporting frame (14).

4. A tea withering machine according to claim 1, characterized in that: The heating box (4) and the inner side of the sealing top cover (16) are respectively connected with a first temperature sensor (20) and a second temperature sensor (21).

5. A tea withering machine according to claim 1, characterized in that: The bottom of the sealing top cover (16) is connected to a pressure sensor (22), and the top of the sealing top cover (16) is connected to a pressure relief valve pipe (23).

6. A tea withering machine according to claim 1, characterized in that: A sealing rubber ring (24) is connected to the outer side of the bottom of the sealing top cover (16).

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