Mesh cylinder type tea leaf fixation device

Abstract

The invention provides a mesh cylinder type tea leaf fixation device, and relates to the technical field of tea leaf fixation devices, the mesh cylinder type tea leaf fixation device comprises a cylinder seat, the cylinder seat is horizontally and fixedly arranged, the cylinder seat is hollow and is internally provided with a fixation cavity, and the fixation cavity comprises a preheating part, a fixation part and a drying part which are sequentially communicated from one end to the other end; one side of the preheating part and one side of the drying part of the cylinder seat are respectively communicated with a feed port and a discharge port, a net cylinder is rotatably arranged in the enzyme deactivation cavity, two end openings of the net cylinder are respectively communicated with the feed port and the discharge port, a spiral guide plate is fixedly arranged in the net cylinder, and the net cylinder is driven by a first driving source fixedly arranged on the outer side of the cylinder seat to rotate; heat sources are evenly arranged on the inner wall of the fixation part in a surrounding mode, a hot air assembly communicated with the fixation part is fixedly arranged on the outer wall, close to the fixation part, of the cylinder base and used for inputting hot air into the fixation part, and an air conveying pipe communicated with the preheating part and the drying part is fixedly arranged along the outer side of the cylinder base; and the conveying part is used for conveying air of the drying part into the preheating part.

Description

Technical Field

[0001] The invention relates to the technical field of tea leaf withering devices, and in particular to a net-drum type tea leaf withering device. Background Art

[0002] Withering is a key process in tea production. It mainly destroys the activity of enzymes in fresh tea leaves through high temperature and prevents the oxidation of polyphenols, thereby fixing the color, aroma and taste of the tea. High temperature withering can soften the leaves by evaporating part of the water in the fresh leaves, making them easier to roll and shape, while reducing the grassy smell and promoting the formation and release of tea aroma substances. Withering can also destroy the cell structure of tea leaves, causing cell fluid to seep out, increasing the concentration and taste of the tea soup, reducing the bitterness of the tea, and extending the shelf life of the tea.

[0003] The existing tea withering methods mainly include pot-type tea withering, drum-type tea withering, steam tea withering or hot air tea withering, among which pot-type tea withering is to put fresh leaves into a preheated iron pot, and stir-fry the tea leaves manually or mechanically to achieve the purpose of withering. This method has high labor intensity, low production efficiency, high technical requirements for operators, and it is difficult to accurately control the temperature and time, which is prone to uneven withering or burning. Drum-type tea withering is to heat the leaves during the rolling process by continuously rotating the heated drum, but the drum is generally made of steel, and the heat is transferred from the heat source to the drum, which easily leads to uneven temperature distribution, resulting in insufficient or excessive withering of some tea leaves. Steam withering is to quickly penetrate the fresh leaves with high-temperature steam, so that the leaves are heated in a short time, but the water content of the tea leaves after steam withering is high, and additional dehydration treatment is required, and steam equipment is required, and the production and maintenance costs are high. Hot air withering is to quickly bake and dehydrate the fresh leaves with high-temperature hot air, but in actual use, due to the temperature difference between the wind temperature and the fresh leaves, the moisture loss rate at the edge of the fresh tea leaves will be faster, which is easy to cause burnt edges.

[0004] The Chinese utility model patent with the authorization announcement number CN221532745U proposes a "Intelligent Tea Withering Machine", which includes a conveyor belt, a hot air blower, a waste tray, a heating chamber, a motor, a top plate, an L-shaped baffle, a sliding door, and a heat-insulating shell. The surface of the conveyor belt is in a grid shape, and a hot air blower, a heating chamber, and a waste tray fixedly connected to the heat-insulating shell are arranged below it. The hot air blower is fixedly connected to the heating chamber, and the conveyor belt is fixedly connected to the heat-insulating shell through the motor. A top plate is fixedly connected below the top of the heat-insulating shell, and the top plate is fixedly connected to two L-shaped baffles. A sliding door is arranged inside the L-shaped baffle at one end. The intelligent tea withering machine, through the coordinated use of the hot air blower, the heating chamber, and the conveyor belt, realizes accurate and uniform heating of tea leaves, can screen out leaf debris and tea stems, avoids the reduction of tea quality due to mutual squeezing and mechanical friction between tea leaves, and achieves the purpose of improving the output quality of tea leaves.

[0005] In the above structure, the tea leaves are mainly dispersed and withered by utilizing the differences in size, quality and water content between tea leaves and using a hot air blower to blow the tea leaves to different heights. In actual application, although the above structure can achieve a good dispersion effect, the fresh leaves on the conveyor belt are directly affected by the heat of the heat source. There is a temperature difference between the temperature of the heat source and the fresh leaves just entering the heating chamber. If the temperature is too high, it is easy to cause the moisture on the edge of the fresh leaves to lose too quickly, resulting in burnt edges and burst points, affecting the quality of the tea. If the temperature is too low, the activity of the enzyme may not be effectively deactivated, resulting in incomplete withering. Summary of the invention

[0006] In view of the deficiencies existing in the prior art, the present invention provides a net-drum type tea withering device, which solves the problem in the prior art that there is a temperature difference between the heat source temperature and the fresh leaves just entering the heating chamber. If the temperature is too high, it is easy to cause the moisture at the edge of the fresh leaves to lose too quickly, resulting in burnt edges and bursting points, affecting the quality of the tea leaves. If the temperature is too low, it may not be able to effectively passivate the activity of the enzyme, resulting in incomplete withering.

[0007] According to an embodiment of the present invention, a net-drum type tea leaf withering device comprises:

[0008] A cylinder seat, the cylinder seat is fixedly arranged horizontally, a cylindrical green-fixing cavity is arranged hollow inside the cylinder seat, the green-fixing cavity comprises a preheating part, a green-fixing part and a drying part which are sequentially connected from one end to the other end, a feeding port is connected to one side of the preheating part of the cylinder seat, and a discharging port is connected to one side of the drying part of the cylinder seat;

[0009] A net cylinder, wherein a plurality of mesh holes are evenly distributed on the net cylinder, the net cylinder is transversely rotatably arranged in the fixing chamber, and the openings at both ends of the net cylinder are respectively connected with the feed port and the discharge port, a spiral material guide plate is fixedly arranged in the net cylinder, and the net cylinder is driven to rotate by a first driving source fixedly arranged on the outer side of the cylinder seat;

[0010] The fixing mechanism includes a heat source and a hot air component. The heat source is evenly arranged on the inner wall of the fixing part. The hot air component is fixedly arranged on the outer wall of the cylinder seat close to the fixing part and is connected with the fixing part for inputting hot air into the fixing part.

[0011] The circulation mechanism includes a second driving source and an air supply pipe, wherein the air supply pipe connects the preheating section and the drying section along the outer side of the cylinder seat, and the second driving source is fixedly arranged on the outer wall of the cylinder seat close to the drying section, and is used to transport the air of the drying section to the preheating section.

[0012] The technical principle of the present invention is as follows: when in use, fresh tea leaves are put into the withering chamber from the feed inlet, and the fresh leaves will fall into the net cylinder from the opening of the net cylinder, and the first driving source is started to drive the net cylinder to rotate. Driven by the spiral structure of the guide plate, the fresh leaves will continuously slide forward or fall and disperse along the spiral plate surface when the guide plate rotates to a certain height, and then the withering mechanism is started. When the fresh leaves move to the withering part, the heat source evenly surrounding the inner wall will bake and heat the fresh leaves in all directions, and the hot air component inputs hot air to further bake the fresh leaves to ensure the withering effect; then the circulation mechanism is started, and the second driving source will transport the air of the drying part to the preheating part, and the water vapor generated by the fresh leaves being baked in the withering part will be extracted from the air duct together with the hot air, to ensure the drying effect of the fresh leaves after withering, and the hot air transported to the preheating part can preheat and heat the fresh leaves that have just entered the net cylinder, thereby avoiding the heat of the heat source directly acting on the fresh leaves, causing burnt edges due to temperature difference, and affecting the withering effect.

[0013] Furthermore, the bottom of the feed port and the discharge port are provided with a material discharge camber surface with uniform camber.

[0014] Furthermore, a pair of limiting rings are fixedly provided at both ends of the net cylinder, a fixing rod is axially fixedly provided on the side wall of the net cylinder, and both ends of the fixing rod are fixedly connected to the two limiting rings respectively.

[0015] Furthermore, the first driving source includes a motor, an output end of the motor is fixedly connected to a driving gear, a plurality of meshing teeth are arranged around the outer side of a limiting ring close to the motor, and the meshing teeth are meshed with the driving gear.

[0016] Furthermore, the heat source includes infrared lamps, and the infrared lamps are arranged in an array around the mesh tube.

[0017] Furthermore, the hot air assembly includes a first fan, an air outlet end of the first fan extends into the cylinder seat and is connected to the killing part, and an electric heating plate is fixedly provided at the air outlet end of the first fan.

[0018] Furthermore, the second driving source includes a second fan, the air inlet end and the air outlet end of the second fan are respectively connected to the drying part and the air supply pipe, the air supply pipe is divided into two from the air outlet end of the second fan, and the two air supply pipes are respectively connected to the preheating part along both sides of the cylinder seat.

[0019] Furthermore, the air supply pipe is evenly provided with a plurality of blowing pipes near the preheating section, and the plurality of blowing pipes extend into the preheating section and are symmetrically arranged on both sides of the bottom of the preheating section, and a filter is fixedly provided at the pipe opening of the blowing pipe.

[0020] Furthermore, a slag collecting trough is axially provided at the bottom of the killing chamber, and both ends of the slag collecting trough are flush with the mesh cylinder. The air duct is provided with a pair of slag blowing pipes near the two ends of the slag collecting trough. The two slag blowing pipes pass through the cylinder seat and are connected to the two ends of the slag collecting trough. The two slag blowing pipes are respectively provided with a pair of slag blowing ports opposite to each other in the slag collecting trough.

[0021] Furthermore, a sinking trough is arranged in the middle of the slag collecting trough, a slag outlet is arranged on one side of the sinking trough to communicate with the inside and outside, and a slag receiving box is slidably arranged in the slag outlet.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. By providing a mesh cylinder with uniform mesh holes, the heat transmission effect of the heat source can be ensured to the greatest extent. By driving the rotation of the mesh cylinder through the first driving source, the fresh leaves entering the mesh cylinder can adjust their positions and directions while constantly tumbling, so that they are evenly baked by the heat. The spiral structure of the guide plate can make the fresh leaves continuously slide forward or fall and disperse along the spiral plate surface when the guide plate rotates to a certain height, thereby avoiding the accumulation of fresh leaves entering the mesh cylinder and providing a basis for the uniform withering of the fresh leaves.

[0024] 2. By evenly surrounding the heat source in the withering section, it can be ensured that the fresh leaves moving in the net cylinder will be baked in all directions. Then, the hot air is input into the withering section through the hot air component to further improve the uniformity of baking the fresh leaves. The two work together to create a uniform and stable withering environment, avoiding the problem of uneven temperature distribution in traditional equipment due to a single heat source.

[0025] 3. By setting up a circulation mechanism, the second driving source will transport the air from the drying section to the preheating section. The water vapor generated by the fresh leaves in the withering section will be extracted from the air duct together with the hot air, ensuring the drying effect of the fresh leaves after withering. The hot air transported to the preheating section can preheat the fresh leaves that have just entered the mesh cylinder, so that the fresh leaves can be gradually heated up in a uniform trend, thereby avoiding the heat from the heat source directly acting on the fresh leaves, causing burnt edges or insufficient withering due to temperature difference, affecting the withering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention.

[0027] Figure 2 for Figure 1 A schematic diagram of the enlarged structure in the middle.

[0028] Figure 3 It is a schematic diagram of a side cross-sectional structure of an embodiment of the present invention.

[0029] Figure 4 for Figure 3Enlarged schematic diagram of the structure at point B in the middle.

[0030] Figure 5 It is a schematic diagram of the side cross-sectional structure of the cartridge holder according to an embodiment of the present invention.

[0031] Figure 6 for Figure 5 Enlarged schematic diagram of the structure at point C in the middle.

[0032] Figure 7 It is a schematic diagram of the cross-sectional structure of a cartridge seat in a top view according to an embodiment of the present invention.

[0033] Figure 8 Schematic diagram of the net cylinder structure of an embodiment of the present invention.

[0034] Fig. 9 It is a schematic diagram of the mesh drum assembly structure of an embodiment of the present invention.

[0035] In the above drawings: 1. Cylinder seat; 11. Feeding arc surface; 12. Feeding port; 13. Discharging port; 14. Reinforcing ribs; 2. Fixing chamber; 21. Preheating section; 211. Air outlet; 22. Fixing section; 23. Drying section; 24. Limiting section; 25. Slag collecting trough; 26. Sinking trough; 3. Net cylinder; 31. Limiting ring; 311. Meshing teeth; 32. Fixing rod; 33. Guide plate; 34. Mesh; 4. Motor; 41. Driving gear; 5. Fixing mechanism; 51. Infrared lamp; 52. First fan; 53. Electric heating plate; 6. Second fan; 61. Air duct; 62. Blowing pipe; 621. Filter; 63. Slag blowing pipe; 631. Valve; 64. Slag blowing port; 7. Control panel; 8. Slag receiving box; 81. Handle. DETAILED DESCRIPTION

[0036] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0037] like Figure 1-7 As shown, an embodiment of the present invention proposes a net cylinder type tea leaf withering device, comprising: a cylinder seat 1, the cylinder seat 1 is fixedly arranged horizontally, a bottom plate is fixedly arranged at the bottom of the cylinder seat 1, a plurality of reinforcing ribs 14 connecting the cylinder seat 1 and the bottom plate are fixedly arranged at the connection between the two, a cylindrical withering chamber 2 is hollowly arranged in the cylinder seat 1, the withering chamber 2 is transversely penetrated in the cylinder seat 1, the withering chamber 2 comprises a preheating part 21, a withering part 22 and a drying part 23 which are sequentially connected from one end of the cylinder seat 1 to the other end, a feed port 12 is connected to the cylinder seat 1 on the side close to the preheating part 21, a discharge port 13 is connected to the cylinder seat 1 on the side close to the drying part 23, and the bottoms of the feed port 12 and the discharge port 13 are both provided with a discharge arc surface 11 with uniform curvature to facilitate the feeding and discharging of tea leaves, and a control screen 7 is fixedly arranged on one side of the cylinder seat 1 for assembly control.

[0038] like Figure 1 , Figure 3 and Figure 7-8 As shown, in this embodiment, a net cylinder 3 is rotatably arranged in the fixing chamber 2, and a plurality of mesh holes 34 are evenly distributed on the net cylinder 3, which is convenient for heat exchange and can effectively separate fresh tea leaves and impurities. The net cylinder 3 is embedded and rotatably arranged in the wall of the fixing chamber 2, and the openings at both ends of the net cylinder 3 are respectively connected with the feed port 12 and the discharge port 13, so that fresh tea leaves can smoothly enter the net cylinder 3 without falling out. A plurality of annular limiting parts 24 are also fixedly arranged in the fixing chamber 2, so that the The net cylinder 3 can rotate stably, and a guide plate 33 is fixedly arranged inside the net cylinder 3. The guide plate 33 extends spirally from one end of the net cylinder 3 to the other end, so that the fresh leaves can continuously move forward along the net cylinder 3 under its push and guidance. Furthermore, a pair of limit rings 31 are fixedly arranged at both ends of the net cylinder 3, and a plurality of fixed rods 32 are fixedly arranged on the outer wall of the net cylinder 3 along the axial direction, and the two ends of the fixed rods 32 are respectively fixedly connected with the two limit rings 31 to increase the stability of the overall structure of the net cylinder 3.

[0039] like Figure 3 and Figure 8-9 As shown, in the present embodiment, the net cylinder 3 is driven to rotate by a first driving source fixed on the outside of the cylinder seat 1, and the first driving source is set as a motor 4, and the motor 4 can be a servo motor, a stepping motor or a DC motor, etc., whose output end can drive the rotation mechanism, and the output end of the motor 4 is fixedly connected with a driving gear 41, and a plurality of meshing teeth 311 are arranged around the outside of the limiting ring 31 close to the motor 4, and the meshing teeth 311 are meshed with the driving gear 41.

[0040] like Figure 3-7As shown, the net tube 3 type tea leaf fixing device also includes a fixing mechanism 5, which includes a heat source and a hot air component. The heat source may include an electric heating sleeve, an electric heating plate, an electromagnetic heater or other heating mechanism that can provide heat. In this embodiment, the heat source is set to be an infrared lamp 51, and the infrared lamp 51 is evenly arranged in an array around the net tube 3 and is arranged on the inner wall of the fixing part 22 to provide heat for fixing fresh leaves. The infrared radiation heats quickly and has a high fixing efficiency. It can penetrate the tea leaves moving in the net tube 3 and heat them uniformly in all directions to avoid local overheating or overcooling, thereby ensuring the stability of the quality of the tea leaves. In order to prevent the tea ash produced by the tea leaves from adhering to the infrared lamp 51 during use and affecting the fixing effect of the infrared lamp 51, the infrared lamp 51 needs to be regularly checked. 1 is cleaned outside, the hot air component includes a first fan 52, the air outlet end of the first fan 52 extends into the cylinder seat 1 and is connected with the fixing part 22, the air outlet end of the first fan 52 is fixedly provided with an electric heating plate 53, the heating plate heats the air and then inputs it into the fixing chamber 2, the air outlet position of the first fan 52 can be determined according to actual use requirements, a plurality of air outlet ports can be provided and arranged in an array surrounding manner to further improve the uniformity of baking of fresh leaves, a temperature detection component can also be provided in the fixing part 22, and the output power of the infrared lamp 51 and the first fan 52 can be adjusted according to the feedback of the temperature detection component to ensure that the temperature of the fixing part 22 is within the optimal range, to create a fixing environment with uniform and stable temperature, and to avoid the problem of uneven temperature distribution.

[0041] like Figure 1-7As shown, the net cylinder 3 type tea withering device also includes a circulation mechanism, which includes a second driving source and an air supply pipe 61. The second driving source is fixedly arranged on the outer wall of the cylinder seat 1 close to the drying section 23. In this embodiment, the second driving source is set as a second fan 6. The air inlet end and the air outlet end of the second fan 6 are respectively connected to the drying section 23 and the air supply pipe 61. The other end of the air supply pipe 61 is connected to the preheating section 21 along the outer side of the cylinder seat 1. The second fan 6 can transport the air of the drying section 23 to the preheating section 21. The water vapor generated by the tea leaves being baked in the withering section 22 will enter the drying section 23 together with the hot air and be extracted from the air duct 61 to the preheating section 21, thereby ensuring the drying effect of the fresh leaves after withering. At the same time, the lower temperature and mixed water vapor will also try to avoid the phenomenon of burnt edges caused by the fresh tea leaves in the preheating section 21 suddenly encountering high-temperature, dry hot air. In addition, the reuse of the hot air in the drying section 23 reduces energy loss and reduces production costs compared to direct discharge. Preferably, the air duct 61 is divided into two at the air outlet end of the second fan 6, and the two air ducts 61 The two sides of the cylinder seat 1 are respectively connected with the preheating part 21. Furthermore, the air delivery pipe 61 is evenly provided with a plurality of blowing pipes 62 near the preheating part 21. The plurality of blowing pipes 62 extend into the preheating part 21 and are symmetrically arranged on both sides of the bottom of the preheating part 21, so that the hot air input is more uniform. The blowing pipe 62 is arranged perpendicular to the mesh cylinder 3, and a filter screen 621 is fixedly provided at the pipe mouth of the blowing pipe 62 to prevent impurities in the fresh leaves from falling and clogging the blowing pipe 62. Based on the above arrangement, the hot air delivered to the preheating part 21 by the second fan 6 is The air can produce the following effects: 1. The hot air transported to the preheating part 21 can preheat the fresh leaves just entering the net cylinder 3, so that the fresh leaves can be gradually heated up in a uniform trend, avoiding the heat of the heat source directly acting on the fresh leaves, and the reduction of the withering effect due to excessive temperature difference; 2. The blowing pipe 62 directly outputs hot air to the net cylinder 3, which can avoid the fresh leaves being stuck in the mesh 34 when they just enter the net cylinder 3, causing the net cylinder 3 to be blocked; 3. The blowing pipes are symmetrically arranged on both sides of the bottom of the preheating part 21, which can provide a certain buoyancy for the fresh leaves in the net cylinder 3, making it easier to disperse the fresh leaves when rotating to avoid accumulation.

[0042] The technical principle of the present invention is as follows: when in use, fresh tea leaves are put into the fixing chamber 2 from the feed port 12, and the fresh leaves will fall into the net cylinder 3 from the opening of the net cylinder 3. The motor 4 is started to drive the net cylinder 3 to rotate. The fresh leaves will be driven by the spiral structure of the guide plate 33. When the guide plate 33 rotates to a certain height, it will continuously slide forward along the spiral plate surface or fall and disperse. Then the fixing mechanism 5 is turned on. When the fresh leaves move to the fixing part 22, the infrared lamps 51 evenly surrounding the inner wall will bake and heat the fresh leaves in all directions. The first fan 52 will input hot air to further bake the fresh leaves to ensure the withering effect; then start the circulation mechanism, the second fan 6 will transport the air of the drying section 23 to the preheating section 21, and the water vapor generated by the fresh leaves baking in the withering section 22 will be extracted from the air duct 61 together with the hot air, to ensure the drying effect of the fresh leaves after withering, and the hot air transported to the preheating section 21 can preheat and blow the fresh leaves that have just entered the mesh cylinder 3, so as to avoid the heat of the heat source directly acting on the fresh leaves, causing burnt edges due to temperature difference, and affecting the withering effect.

[0043] The present invention can ensure the transmission effect of heat from the heat source to the greatest extent by providing a net cylinder 3 with uniform mesh holes 34. By driving the rotation of the motor 4, the fresh leaves entering the net cylinder 3 can adjust their positions and directions in continuous tumbling, so that they are evenly baked by the heat. The spiral structure of the guide plate 33 can make the fresh leaves continuously slide forward or fall and disperse along the spiral plate surface when the guide plate 33 rotates to a certain height, so as to avoid the accumulation of fresh leaves entering the net cylinder 3, thereby providing a basis for the uniform baking of the fresh leaves. By uniformly surrounding the baking section 22 with infrared lamps 51, it can be ensured that the fresh leaves moving in the net cylinder 3 will be baked in all directions. Then, by inputting hot air into the baking section 22 with the first fan 52, the uniform baking degree of the fresh leaves can be further improved. The linkage and cooperation between the two creates a uniform and stable baking environment, thus avoiding the problem of uneven temperature distribution in traditional equipment due to a single heat source. By providing a circulation mechanism, the second fan 6 will transport the air from the drying section 23 to the preheating section 21. The water vapor generated by the fresh leaves in the withering section 22 will be extracted from the air duct 61 together with the hot air, ensuring the drying effect of the fresh leaves after withering, and the hot air transported to the preheating section 21 can preheat the fresh leaves that have just entered the net cylinder 3, so that the fresh leaves can be gradually heated up in a uniform trend, thereby avoiding the heat of the heat source directly acting on the fresh leaves, causing burnt edges or insufficient withering due to temperature difference, and affecting the withering effect. The lower temperature and mixed water vapor will try to avoid the phenomenon of burnt edges and the like caused by the fresh tea leaves in the preheating section 21 suddenly encountering high temperature and dry hot air. In addition, the reuse of hot air in the drying section 23 reduces energy loss and reduces production costs compared to direct discharge; the hot air transported to the preheating section 21 can also directly output hot air to the net cylinder 3, avoiding the fresh leaves from being stuck in the mesh 34 when they just enter the net cylinder 3, causing the net cylinder 3 to be blocked; at the same time, a certain buoyancy can be provided to the fresh leaves in the net cylinder 3, making it easier to disperse the fresh leaves when rotating to avoid accumulation.

[0044] like Figure 5 and Figure 7 As shown, the device can adopt a continuous feeding production method, and the hot air entering the fixing chamber 2 can be discharged through the feed port 12 and the discharge port 13. In order to prevent the hot air circulation from affecting the temperature distribution state in the fixing chamber 2, the feed port 12 and the discharge port 13 should not be too large. According to another embodiment of the embodiment of the present invention, an air outlet 211 can be further provided at the top of the preheating section 21 for hot air discharge. In order to prevent the hot air from escaping from the feed port 12 and the discharge port 13, the feed port 12 and the discharge port 13 can be set to an automatic switch type, and the feeding mode can be set to intermittent feeding. After feeding, the feed port 12 and the discharge port 13 are closed. At this time, the air inlet and outlet ports are unique. Although this embodiment reduces the production efficiency to a certain extent, it can ensure that the temperature distribution in the fixing chamber 2 is more stable.

[0045] like Figure 1-3 , Figure 5 and Figure 7 As shown, according to another embodiment of the present invention, a mesh cylinder type tea leaf withering device, the bottom of the withering chamber 2 is also axially penetrated by a residue collecting groove 25, and the two ends of the residue collecting groove 25 are flush with the mesh cylinder 3, and the air supply pipe 61 is provided with a pair of residue blowing pipes 63 near the two ends of the residue collecting groove 25, and the two residue blowing pipes 63 pass through the cylinder seat 1 and are connected to the two ends of the residue collecting groove 25, and the two residue blowing pipes 63 are respectively provided with a pair of residue blowing ports 64 in the residue collecting groove 25, and further, a sinking groove 26 is provided in the middle of the residue collecting groove 25, and the sinking groove 26 is lower than the residue collecting groove 25, and a residue outlet is provided on one side of the sinking groove 26 to communicate with the inside and outside, and a residue receiving box 8 is slidably provided in the residue outlet, and a handle 81 is also fixedly provided on the outside of the residue receiving box 8 to facilitate the removal of the residue receiving box 8.

[0046] Based on the above further improvements, the impurities generated during the rotation and baking of the fresh leaves will fall into the slag collecting tank 25 through the mesh holes 34 of the mesh tube 3, and then the impurities can be collected in the middle sinking tank 26 through the slag blowing ports 64 arranged at both ends of the slag collecting tank 25, and can be collected by the slag receiving box 8 and taken out for separate treatment. Since the slag blowing pipe 63 is connected to the air supply pipe 61, there is no need to set up a slag pushing or scraping mechanism separately, and the structure is simple and convenient. A valve 631 can also be set on the slag blowing pipe 63. When the impurities need to be processed, the valve 631 can be opened to perform the slag blowing operation. A filter 621 can also be set on the slag blowing port 64 to prevent blockage.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A net-drum tea-withering device, characterized in that: include: A cylinder seat (1), the cylinder seat (1) is fixedly arranged horizontally, a cylindrical green-fixing chamber (2) is hollowly arranged in the cylinder seat (1), the green-fixing chamber (2) comprises a preheating section (21), a green-fixing section (22) and a drying section (23) which are sequentially connected from one end to the other end, the cylinder seat (1) is connected to a feed port (12) on one side of the preheating section (21), and is connected to a discharge port (13) on one side of the drying section (23); A net cylinder (3), wherein a plurality of mesh holes (34) are evenly distributed on the net cylinder (3), the net cylinder (3) is arranged to rotate transversely in the fixing chamber (2), and the openings at both ends of the net cylinder (3) are respectively connected to the feed port (12) and the discharge port (13), a spiral material guide plate (33) is fixedly arranged in the net cylinder (3), and the net cylinder (3) is driven to rotate by a first driving source fixedly arranged on the outside of the cylinder seat (1); The fixing mechanism (5) comprises a heat source and a hot air component, wherein the heat source is evenly arranged on the inner wall of the fixing part (22), and the hot air component is fixedly arranged on the outer wall of the cylinder seat (1) close to the fixing part (22) and is connected to the fixing part (22) for inputting hot air into the fixing part (22). A circulation mechanism, the circulation mechanism comprising a second driving source and an air supply pipe (61), the air supply pipe (61) connecting the preheating section (21) and the drying section (23) along the outer side of the cartridge seat (1), the second driving source being fixedly arranged on the outer wall of the cartridge seat (1) close to the drying section (23) and being used for conveying air from the drying section (23) to the preheating section (21).

2. A net-drum tea-withering device as claimed in claim 1, characterized in that: The bottoms of the feed port (12) and the discharge port (13) are provided with a material discharge cambered surface (11) with a uniform camber.

3. A net-drum tea-withering device as claimed in claim 1, characterized in that: A pair of limiting rings (31) are fixedly arranged at both ends of the net cylinder (3), a fixing rod (32) is axially fixedly arranged on the side wall of the net cylinder (3), and both ends of the fixing rod (32) are fixedly connected to the two limiting rings (31) respectively.

4. A net-drum tea-withering device as claimed in claim 3, characterized in that: The first driving source comprises a motor (4), the output end of the motor (4) is fixedly connected to a driving gear (41), a plurality of meshing teeth (311) are arranged around the outer side of a limiting ring (31) close to the motor (4), and the meshing teeth (311) and the driving gear (41) are meshed with each other.

5. A net-drum tea-withering device as claimed in claim 1, characterized in that: The heat source comprises infrared lamps (51), and the infrared lamps (51) are arranged in an array around the net cylinder (3).

6. A net-drum tea-withering device as claimed in claim 1, characterized in that: The hot air assembly comprises a first fan (52), the air outlet end of the first fan (52) extends into the cylinder seat (1) and is connected to the killing part (22), and an electric heating plate (53) is fixedly provided at the air outlet end of the first fan (52).

7. A net-drum tea-withering device as claimed in claim 1, characterized in that: The second driving source comprises a second fan (6); an air inlet end and an air outlet end of the second fan (6) are respectively connected to the drying section (23) and the air supply pipe (61); the air supply pipe (61) is divided into two from the air outlet end of the second fan (6), and the two air supply pipes (61) are respectively connected to the preheating section (21) along two sides of the cylinder seat (1).

8. A net-drum tea-withering device as claimed in claim 1, characterized in that: The air delivery pipe (61) is evenly provided with a plurality of blowing pipes (62) near the preheating section (21); the plurality of blowing pipes (62) extend into the preheating section (21) and are symmetrically arranged on both sides of the bottom of the preheating section (21); and a filter screen (621) is fixedly provided at the pipe opening of the blowing pipe (62).

9. A net-drum tea-withering device as claimed in claim 7, characterized in that: A slag collecting groove (25) is axially penetrated at the bottom of the killing chamber (2), and the two ends of the slag collecting groove (25) are flush with the mesh cylinder (3). The air supply pipe (61) is provided with a pair of slag blowing pipes (63) near the two ends of the slag collecting groove (25). The two slag blowing pipes (63) penetrate the cylinder seat (1) and are connected to the two ends of the slag collecting groove (25). The two slag blowing pipes (63) are respectively provided with a pair of slag blowing ports (64) in the slag collecting groove (25) facing each other.

10. A net-drum tea-withering device as claimed in claim 7, characterized in that: A sinking trough (26) is provided in the middle of the slag collecting trough (25), a slag outlet is provided on one side of the sinking trough (26) to communicate with the inside and outside, and a slag receiving box (8) is slidably provided in the slag outlet.

Images