Nitrogen-filled antioxidation continuous rolling and twisting deagglomerator unit

Abstract

The application discloses a nitrogen-filled antioxidation continuous rolling and twisting deagglomerating machine set, which comprises a rolling and twisting machine, an antioxidation feeding conveying device is arranged at the feeding end of the rolling and twisting machine in a butt joint mode, and a vibrating deagglomerating conveyor is arranged at the discharging end of the rolling and twisting machine in a butt joint mode. The antioxidation feeding conveying device is used for realizing rapid cooling of tea leaves, antioxidation quantitative conveying, antioxidation rolling and twisting through the rolling and twisting machine, conveying and low-temperature deagglomeration through the vibrating deagglomerating conveyor after rolling and twisting is completed. Through the structure, the occupying area of the rolling and twisting deagglomerating machine set can be greatly reduced, the antioxidation capacity during green tea processing is improved, and the processing quality of the tea leaves is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tea processing, and in particular to a nitrogen-filled antioxidation continuous rolling and deagglomeration machine group. BACKGROUND

[0002] Rolling is an important process for processing various high-quality tea leaves, and is usually arranged after the fixation process, and deagglomeration is performed after rolling is completed. Conveying belts are usually used for conveying between the fixation machine and the rolling machine and between the rolling machine and the deagglomeration machine. The existing conveying belts are mostly long linear structures and have a long conveying distance. In addition, the space occupied by the arrangement of the rolling machine and the deagglomeration machine accounts for about 70% of the total space of the workshop. At the same time, the existing rolling machines are all open structures, and tea leaves are exposed to the air. For green tea processing, most of the tea polyphenols, caffeine, amino acids, vitamins, tea polysaccharides, tea pigments and other substances contained in the tea leaves are exposed to the air in the open rolling, which is easy to be oxidized under the action of polyphenol oxidase and other oxidases, and yellowing and red discoloration occur, affecting the quality of the tea leaves. In addition, the high temperature of the fixed tea leaves also accelerates the oxidation process. Therefore, the existing rolling machine and conveying belt structure can cause high oxidation of the tea leaves and have a greater impact on the quality of the green tea.

[0003] In addition, the existing deagglomeration machine is an independent machine structure, and the rolling is completed by conveying to the deagglomeration machine through the conveying belt. If continuous deagglomeration is to be performed, multiple deagglomeration machines need to be configured, and multiple sets of conveying devices also need to be used. Therefore, there are problems such as multiple mechanical equipment configurations, high energy consumption, and large space occupation in the workshop. In summary, the existing rolling and deagglomeration machine group needs to be improved to reduce the floor area occupied by the equipment while ensuring the quality of tea processing and to perform antioxidation rolling and deagglomeration. SUMMARY

[0004] The purpose of the present application is to provide a nitrogen-filled antioxidation continuous rolling and deagglomeration machine group to solve the problems of large floor area occupied by the existing rolling and deagglomeration machine group and easy oxidation of tea leaves.

[0005] The technical solution adopted by the present application to solve the technical problems is: a nitrogen-filled antioxidation continuous rolling and deagglomeration machine group, comprising a rolling machine, an antioxidation feeding conveying device is arranged at the feeding end of the rolling machine, and a vibrating deagglomeration conveyor is arranged at the discharging end of the rolling machine.

[0006] The anti-oxidation feed conveying device comprises a feeder frame, a feed windmill rotatably installed on the feeder frame, and an inlet tea hopper provided above the side of the feed windmill and connected with the discharge port of the fixation machine; the feed windmill comprises a groove feed wheel, a group of partitions are uniformly arranged in the groove feed wheel, the partitions separate the groove feed wheel into a plurality of independent feed hoppers, and the groove feed wheel and the partitions adopt a porous plate structure; a gas pipe is connected to the bottom of each feed hopper, a stop valve is arranged on the gas pipe, an air suction disc and a nitrogen charging disc are further arranged on the feed windmill, the air suction disc is connected with an air compressor, and the nitrogen charging disc is connected with a nitrogen tank; a group of air suction branch pipes are arranged on the air suction disc, a group of nitrogen charging branch pipes are arranged on the nitrogen charging disc, each gas pipe is in communication with one of the air suction branch pipes and the nitrogen charging branch pipes, and a three-way valve is arranged at the connection position.

[0007] The vibration deblocking conveyor comprises a deblocking frame, a vibration deblocking groove arranged on the deblocking frame and connected with the discharge port of the rolling machine, and the deblocking frame and the vibration deblocking groove are arranged obliquely upwards, the bottom of the vibration deblocking groove is provided with a continuous corrugated concave-convex groove, and a driving device for driving the vibration deblocking groove is further arranged; a group of scattering filters are further arranged in the vibration deblocking groove, the scattering filter comprises a filter mounting rod transversely arranged in the vibration deblocking groove, and a row of filter combs for catching tea clusters rolling down from above are fixed on the filter mounting rod; a gap for moving upward of the tea leaves after scattering is reserved between the front end of the filter comb and the bottom of the vibration deblocking groove.

[0008] In order to slow down the oxidation speed of tea during rolling, the rolling machine comprises a rolling disc, a rolling barrel and a barrel cover arranged on the rolling barrel; the barrel cover comprises a bottom pressing plate and an upper sealing plate, a nitrogen charging chamber is arranged between the bottom pressing plate and the upper sealing plate, a nitrogen charging air inlet valve is arranged on the upper sealing plate, an air outlet valve is arranged at the center position of the bottom pressing plate, a nitrogen charging pipe extending into the rolling barrel is connected to the air outlet valve, nitrogen outlet holes are uniformly distributed on the pipe wall of the nitrogen charging pipe, and the bottom of the nitrogen charging pipe is sealed.

[0009] In order to conveniently control the weight of the feed, an electronic scale is arranged at the bottom of the inlet tea hopper, a feed valve is arranged above the electronic scale, a weighing bottom plate is arranged at the bottom, and the weighing bottom plate is connected with a turnover shaft.

[0010] Further, a rotatable protective cover is further sleeved on the nitrogen charging pipe, a rotating bearing is arranged between the upper portion of the protective cover and the nitrogen charging pipe; the protective cover has a 100-mesh net structure; and a flexible skirt is arranged at the bottom of the rolling barrel.

[0011] In order to improve the effect of deblocking, the upper front of each scattering filter of the vibrating deblocking conveyor is further provided with a turnover deblocking device, which comprises a turnover rotating shaft rotatably installed in the vibrating deblocking groove and a turnover plate installed on the turnover rotating shaft, and the turnover plate is provided with sawtooth turnover teeth, which are in clearance fit with the bottom of the vibrating deblocking groove.

[0012] Further, the filter comb is horizontally arranged, and a cold air pipe blowing towards the filter comb is arranged above the filter comb; one side of the vibrating deblocking groove is provided with a main ventilation pipe, the main ventilation pipe is provided with a cold air fan at one end of the vibrating deblocking groove, and the other end is closed; one end of the cold air pipe is closed, the other end is in communication with the main ventilation pipe and is transversely arranged on the vibrating deblocking groove, and an air outlet slot blowing towards the filter comb is formed in the cold air pipe.

[0013] Preferably, the driving device comprises a driving motor, an eccentric shaft driven by the driving motor, and a transmission frame, and a pull rod is arranged between the transmission frame and the eccentric shaft; a group of swing arms are arranged on the deblocking frame, and two ends of the swing arms are respectively connected with the transmission frame and the vibrating deblocking groove.

[0014] In order to improve the efficiency of rolling, a plurality of rolling machines are arranged side by side, and an inclined vibrating discharge chute is arranged above the rolling machines, a group of openable discharge cover plates are arranged at the bottom of the vibrating discharge chute, and a discharge cylinder corresponding to each rolling machine is arranged below the discharge cover plates, a receiving hopper is arranged below the other side of the feeding hopper relative to the feeding windmill, and the discharge end of the receiving hopper is connected with the feeding end of the vibrating discharge chute.

[0015] A discharge conveyor belt is arranged below the rolling machine, and the discharge port of the discharge conveyor belt is connected with the feeding end of the vibrating deblocking groove.

[0016] The beneficial effects of the present application are as follows: the present application adopts a feeding windmill for feeding at the feeding end of the rolling machine, which can increase the conveying distance of tea leaves in a limited space. Meanwhile, the feeding windmill generates a certain amount of moving air during rotation, which, in combination with the groove conveying wheel and the porous plate structure of the baffle, can blow natural wind to cool the tea leaves during conveying, so as to accelerate heat dissipation and prevent the tea leaves from turning red. In addition, a gas pipe is arranged to blow nitrogen from the bottom at the initial conveying stage, which can not only accelerate cooling but also effectively resist the oxidation of tea leaves. The structure of the rolling machine is improved, and nitrogen is injected during rolling, which can avoid the oxidation and redness of tea leaves during rolling and ensure the quality of green tea processing. The vibration deagglomeration conveyor deagglomerates tea clusters while conveying tea leaves forward, which solves the problems of traditional deagglomeration machines and tea conveying sub-machines, such as multiple operations, high cost, and large space occupation, and realizes one machine with two functions, i.e., synchronous conveying and deagglomeration. Therefore, the improved structure of the present application can not only effectively reduce the floor area occupied by the rolling and deagglomeration machine group and facilitate arrangement, but also effectively prevent the oxidation of tea leaves and improve the quality of tea processing.

[0017] The present application will be described in more detail below with reference to the accompanying drawings and examples. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a front view of the present application.

[0019] Figure 2 It is a front view of the anti-oxidation feeding and conveying device in the present application.

[0020] Figure 3 It is a right view of the feeding hopper, air suction disc, and nitrogen charging disc assembly structure in the present application.

[0021] Figure 4 It is a front view of the rolling machine in the present application.

[0022] Figure 5 It is a sectional view of the rolling barrel in the present application.

[0023] Figure 6 It is an enlarged schematic view of the local part A in the present application. Figure 5

[0024] Figure 7 It is a front view of the vibration deagglomeration conveyor in the present application.

[0025] Figure 8 It is a sectional view of the vibration deagglomeration conveyor in the present application.

[0026] Figure 9 It is a top view of the driving device in the present application.

[0027] Figure 10 It is a top view of the dispersing filter in the present application.​

[0028] Figure 11 This is a top view of the mixing and de-blocking device in this invention.

[0029] Figure 12 This is a top view of the vibrating discharge trough in this invention. Detailed Implementation

[0030] Examples, such as Figure 1 As shown, a nitrogen-filled, antioxidant, continuous kneading and de-clumping machine unit includes a kneading machine 1. An antioxidant feeding conveyor 2 is connected to the inlet end of the kneading machine 1, and a vibrating de-clumping conveyor 3 is connected to the outlet end of the kneading machine 1. The antioxidant feeding conveyor 2 enables rapid cooling and quantitative antioxidant feeding of the tea leaves. The tea leaves are then subjected to antioxidant kneading by the kneading machine 1. After kneading, the vibrating de-clumping conveyor 3 facilitates conveying and de-clumping. This invention significantly reduces the floor space required for the kneading and de-clumping machine unit while simultaneously improving the antioxidant capacity of green tea during processing and enhancing the quality of the processed tea.

[0031] Specifically, such as Figures 2-3 As shown, the antioxidant feeding and conveying device 2 includes a feeding frame 21, a feeding fan 22 rotatably mounted on the feeding frame 21, a tea inlet hopper 23 located on the left side of the feeding fan 22, and a tea receiving hopper 25 located on the lower right side of the feeding fan 22. The feeding fan 22 includes a rotating shaft 224 located in the middle and a grooved conveying wheel 221 located at the outermost edge, and a set of connecting support rods 225 for connecting the rotating shaft 224 and the grooved conveying wheel 221. A set of partitions 222 are evenly arranged inside the grooved conveying wheel 221, which divides the grooved conveying wheel 221 into a series of independent conveying hoppers 223. The tea leaves are placed in the conveying hoppers 223 and conveyed forward with the rotation of the feeding fan 22. To facilitate heat dissipation of the tea leaves within the conveying hopper 223 during transport, both the grooved conveying wheel 221 and the partition plate 222 employ a perforated plate structure. This allows natural airflow generated during rotational conveying to be blown into the conveying hopper 223 to cool the tea leaves. This feeding fan structure can be arranged within a limited space, extending the feeding distance and time, thus providing favorable conditions for continuous feeding, reducing the number of equipment start-ups and shutdowns, and improving the equipment's service life.

[0032] To facilitate feeding and discharging, the tea inlet hopper 23 is located to the upper side of the feeding fan 22. A downward-sloping tea outlet hopper 24 is located at the bottom of the tea inlet hopper 23. The outlet of the tea outlet 24 is located to the upper side of the feeding fan 22 and aligned with the conveying hopper 223, thus accurately feeding the tea leaves into the conveying hopper 223 and conveying them forward. The receiving hopper 25 is located to the lower side of the feeding fan 22. When the conveying hopper 223 rotates to the lower right, the opening of the conveying hopper 223 gradually faces downward, allowing the tea leaves to immediately fall from the conveying hopper 223 into the receiving hopper 25 below.

[0033] To meet the requirement of quantitative output, an electronic weighing device 26 is installed at the bottom of the tea inlet hopper 23. The electronic weighing device 26 has a cylindrical structure, with a feeding valve 261 above it and a weighing base plate 262 at the bottom. The weighing base plate 262 is connected to a tilting shaft 263. In the initial state, the weighing base plate 262 is placed horizontally, blocking the inlet of the tea outlet hopper 24, and the feeding valve 261 is open. When the weighing base plate 262 detects that the tea leaves have reached the required weight, the feeding valve 261 closes, and the weighing base plate 262 tilts to an inclined angle to connect with the tea outlet hopper 24. The tea leaves slide into the tea outlet hopper 24 and enter the conveying hopper 223 along the tea outlet hopper 24. When the conveying hopper 223 is feeding, the machine can be stopped to feed, or the output of tea leaves per unit time of the tea outlet hopper 24 and the rotation speed of the feeding fan 22 can be adjusted to achieve feeding during operation, while the feeding fan 22 continues to rotate. The tilting shaft 263 of the weighing base plate 262 can be driven by a motor or pushed and pulled by a cylinder to tilt the shaft 263.

[0034] To facilitate nitrogen purging and anti-oxidation of the tea leaves in the feeding hopper 223 during the initial feeding stage, and to prevent the tea leaves from slipping out when the feeding hopper 223 rotates to an downward tilting position until it reaches the designated position, each feeding hopper 223 is equipped with an air pipe 27 at its bottom. A conical cover 226 is provided at the bottom of the feeding hopper 223, and the air pipe 27 is connected to the bottom of the cover 226. A shut-off valve 271 is provided on the air pipe 27 to control the opening and closing of the air passage. The feeding blower 22 is also equipped with an air suction plate 28 and a nitrogen filling plate 29, preferably mounted on the rotating shaft 224. An air compressor 210 is connected to the air suction plate 28 for air extraction, and a nitrogen tank 211 is connected to the nitrogen filling plate 29. The suction plate 28 is equipped with a set of suction branch pipes 281, and the nitrogen filling plate 29 is equipped with a set of nitrogen filling branch pipes 291. Each air pipe 27 is connected to one of the suction branch pipes 281 and the nitrogen filling branch pipe 291, and a three-way valve 212 is provided at the connection. When nitrogen filling is required, the three-way valve 212 controls the nitrogen filling branch pipe 291 to connect with the air pipe 27, and fills the corresponding feed hopper 223 with nitrogen for anti-oxidation. When the feed hopper 223 rotates to the point where the opening is tilted downwards and the tea leaves may spill, the three-way valve 212 controls the suction branch pipe 281 to connect with the air pipe 27, and evacuates the bottom of the feed hopper 223, so that the tea leaves adhere to the feed hopper 223 and continue to be conveyed downwards. When it reaches directly above the receiving hopper 25, the shut-off valve 271 is automatically closed by the sensor, and the tea leaves fall into the receiving hopper 25 below under their own gravity.

[0035] It is also equipped with a PLC control system, which controls the rotation of the feeding fan 22 and the opening and closing of the shut-off valve 271 and the three-way valve 212. At the same time, it controls the opening and closing of the feeding valve on the tea hopper and the flipping of the weighing base plate.

[0036] Five kneading machines 1 are arranged side by side, forming a kneading machine unit. For example... Figure 1 and Figure 12 As shown, a downward-sloping vibrating discharge trough 4 is installed above the kneading unit. A vibrator is fixedly installed on the vibrating discharge trough 4, which drives the vibrating discharge trough 4 to vibrate, causing the tea leaves to slide down the inclined bottom of the trough and move forward. To facilitate the control of the tea leaves in the vibrating discharge trough 4 entering the corresponding kneading machine 1, a set of openable discharge cover plates 41 is provided at the bottom of the vibrating discharge trough 4. Correspondingly, a discharge cylinder 42 is provided below the discharge cover plates 41. The discharge cylinder 42 corresponds one-to-one with the kneading machine 1. The discharge end of the feeding fan 22 receiving hopper 25 is located above the feeding end of the vibrating discharge trough 4, feeding the vibrating discharge trough 4. When the corresponding kneading machine 1 needs to be fed, the discharge cover plate 41 above it is opened. After the tea leaves reach the position of the opened discharge cover plate 41, they slide from the discharge cylinder 42 into the kneading drum. To ensure that all tea leaves fall from the discharge cover plate 41, the width of the discharge cover plate 41 is adapted to the width of the bottom of the vibrating discharge trough 4.

[0037] like Figures 4-6 As shown, to achieve nitrogen-filled, antioxidant kneading, the kneading machine 1 includes a kneading frame 110, a kneading disc 11 mounted on the kneading frame 110, a kneading drum 12, and a drum lid 13 mounted on the kneading drum 12. The kneading disc 11 is disc-shaped, made of teak, with a diameter of 65cm and an 8-10cm rim. A set of ribs 111 are provided on the kneading disc 11 to allow the buds and leaves to be kneaded by turning them up, down, left, and right. The advantage of using teak for the kneading disc 11 is that it has high density and hardness, good stability, a fragrant aroma of glutinous rice, and corrosion resistance, making it easy to knead the buds and leaves into "fine, curved strips" while retaining the aroma of glutinous rice. The ribs 111, numbering 13-15, are made of bamboo, with a height of 3-5cm and a width of 1.8-2.1cm. The rib 111 is a curved strip structure arranged along the radial direction. As the kneading drum rotates, the buds and leaves curl into strips under the kneading pressure of the kneading disc 11 and the rib 111. The advantage of using bamboo rib 111 to knead the buds and leaves is that the kneading pressure is lighter, reducing breakage by about 10%. The kneading disc 11 has a tea outlet, which is circular with a diameter of 28-30cm and located in the center of the kneading disc. The tea outlet is also equipped with a door made of stainless steel, which is controlled by a steam pressure device. It is closed when kneading the tea leaves and opened when discharging the tea.

[0038] The kneading drum 12 is 80cm high and 45cm in diameter, and is arranged on the kneading disc 11. To avoid adverse reactions between nitrogen and metal materials, the kneading drum 12 is made of cedar wood to facilitate the kneading of natural materials. In addition, a 5-6cm high flexible plastic skirt 19 is added to the lower part of the kneading drum 12 to prevent nitrogen from leaking out of the kneading drum 12 when it rotates.

[0039] The kneading drum 12 is equipped with a pressure drum lid 13 for pressing down the tea leaves during kneading. To inject nitrogen into the kneading drum 12 during kneading to prevent oxidation of the tea leaves, the lid 13 includes a bottom pressure plate 131 and an upper sealing plate 132. A nitrogen-filling chamber 133 is provided between the bottom pressure plate 131 and the upper sealing plate 132. Both the bottom pressure plate 131 and the upper sealing plate 132 are made of high-strength stainless steel, and a layer of cedar wood is laid on the bottom surface of the bottom pressure plate 131. A nitrogen-filling inlet valve 14 is provided on the upper sealing plate 132, through which high-pressure nitrogen is injected into the nitrogen-filling chamber 133. A vent valve 15 is located at the center of the bottom pressure plate 131. A nitrogen-filling pipe 16, extending into the kneading drum 12, is connected to the vent valve 15. Nitrogen outlet holes 161 are evenly distributed on the wall of the nitrogen-filling pipe 16. The bottom of the nitrogen-filling pipe 16 is sealed, and nitrogen is sprayed outwards through the nitrogen outlet holes 161, allowing nitrogen to quickly fill the kneading drum 12 and repeatedly contact the tea leaves. To prevent tea leaves from blocking the nitrogen outlet holes 161 or entering the nitrogen-filling pipe 16 through the nitrogen outlet holes 161 and affecting nitrogen filling, a protective cover 17 with a 100-mesh mesh structure is also fitted over the nitrogen-filling pipe 16. The upper part of the protective cover 17 is rotatably mounted on the nitrogen-filling pipe 16 via a rotating bearing 18. During kneading, the protective cover 17 can rotate relative to the tea leaves when squeezed, thereby reducing the friction between the protective cover and the tea leaves and preventing the tea leaves from being damaged or falling into the protective cover 17 through the mesh. The protective cover 17 has a detachable structure, making it easy to remove for regular cleaning and replacement.

[0040] The machine is also equipped with a programmable control device, which is a PLC control system. It can automatically set the kneading pressure, kneading time, kneading speed of the tea kneading barrel, and the opening and closing of the air outlet valve 15, and control the nitrogen filling time to carry out intelligent nitrogen filling and anti-oxidation kneading.

[0041] Below the kneading unit is a discharge conveyor belt 6, and the discharge port of the discharge conveyor belt 6 is connected to the feed end of the vibrating deblocking trough 31 on the vibrating deblocking conveyor 3 through the lifting conveyor belt.

[0042] like Figures 7-11As shown, in order to achieve conveying and low-temperature de-bumping and ensure the processing quality of tea, the vibrating de-bumping conveyor 3 includes a de-bumping frame 310 and a vibrating de-bumping trough 31 installed on the de-bumping frame 310 and connected to the discharge port of the kneading machine. Both the de-bumping frame 310 and the vibrating de-bumping trough 31 are arranged inclined upwards at an angle of 3-5°. A drive device 33 is also provided to drive the vibrating de-bumping trough 31 to move. The drive device 33 drives the vibrating de-bumping trough 31 to move, thereby driving the tea on the vibrating de-bumping trough 31 to be conveyed inclined upwards.

[0043] To prevent the broken tea leaves from sliding downwards during the movement, the bottom of the vibrating de-clumping trough 31 is provided with continuous corrugated grooves 32. The vibrating de-clumping trough 31 is made of stainless steel, 8-9m long, 1.4m wide, and 45cm deep. The bottom of the trough is a 25-mesh stainless steel screen. The lower rear part of the trough is closed to prevent the broken buds and leaves from falling, while the upper front part is an open tea outlet to allow the broken buds to be output. The vibrating de-clumping trough 31 simultaneously de-clumps and removes broken tea dust while conveying the tea upwards. To facilitate the removal of the sieved broken tea dust, a dust collection layer 39 is provided below the vibrating de-clumping trough 31. The inclination angle of the dust collection layer 39 is greater than that of the vibrating de-clumping trough 31, preferably 5-7 degrees downward. A movable door 391 is provided near the tea inlet end of the dust collection layer 39, i.e., at the lower rear, for easy access to remove tea dust.

[0044] The drive device 33 includes a drive motor 331 mounted on the block-breaking frame 310 and an eccentric shaft 332 rotatably mounted on the block-breaking frame 310. The eccentric shaft 332 is fixed to the support plate 3101 on the frame by a bearing 3322. The drive motor 331 and the eccentric shaft 332 are driven by a belt. The rotation of the drive motor 331 drives the eccentric shaft 332 to rotate. A transmission frame 333 is provided below the disassembly frame 310. A drive rod 3331 is horizontally arranged between the transmission frames. A tie rod 334 is provided between the drive rod 3331 and the eccentric shaft 332. A first rotating sleeve 3321 is provided on the eccentric shaft 332, and a second rotating sleeve 33311 is provided on the drive rod 3331. The two ends of the tie rod 334 are respectively fixed to the first rotating sleeve 3321 and the second rotating sleeve 33311. The drive motor 331 drives the eccentric shaft 332 to rotate via a belt. The eccentric shaft 332 drives the drive rod 3331 to move back and forth via the tie rod 334, thereby driving the transmission frame 333 to move back and forth. To reduce friction, the first rotating sleeve 3321 and the second rotating sleeve 33311 are preferably bearing sleeves. A set of swing arms 335 are respectively arranged on both sides of the deblocking frame 310. The middle position of the swing arms 335 is rotatably mounted on the deblocking frame 310 via a rotating pin, so that the swing arms 335 can swing around the rotating pin on the deblocking frame 310. The two ends of the swing arms 335 are respectively rotatably connected to the transmission frame 333 and the vibrating deblocking groove 31 via connecting shafts, and the connection point between the swing arms 335 and the vibrating deblocking groove 31 is located behind the connection point between the swing arms 335 and the transmission frame 333.

[0045] To break up large tea clumps conveyed upwards, a set of turning and breaking devices 35 are spaced apart inside the vibrating de-clumping trough 31. Each turning and breaking device 35 includes a turning shaft 351 rotatably mounted inside the vibrating de-clumping trough 31 and a turning plate 352 mounted on the turning shaft 351. The turning plate 352 has serrated turning teeth 353, which are in clearance fit with the bottom of the vibrating de-clumping trough 1. The turning shaft 351 rotates counterclockwise, causing the turning teeth 353 to turn the tea leaves on the vibrating de-clumping trough 31, thus breaking up the tea clumps in conjunction with the movement of the vibrating de-clumping trough 31. To prevent the serrated turning devices from breaking up the tea leaves during turning, the turning teeth 353 are coated with a layer of rubber to gently turn and break up the tea clumps.

[0046] A dispersing filter 34 is also provided below the rear of the stirring and dispersing device 35. The dispersing filter 34 includes a filter mounting rod 341 horizontally placed in the vibrating dispersing groove 31, and a row of filter combs 342 fixed on the filter mounting rod 341 for catching the tea clumps rolling down from above. A gap is reserved between the front end of the filter combs 342 and the bottom of the vibrating dispersing groove 31 for the tea leaves to move upward after being dispersed. The filter combs 342 are arranged horizontally, and a cold air pipe 36 is provided above the filter combs 342 to blow cold air towards the filter combs 342, thereby assisting in dispersing the tea clumps and cooling the tea leaves at the same time.

[0047] The specific installation structure of the cold air duct 36 is as follows: a main ventilation duct 37 is provided on one side of the vibrating de-bulking tank 31. A cold air fan 38 is provided at one end of the main ventilation duct 37 where the material is fed into the vibrating de-bulking tank 31, and the other end is closed. The cold air duct 36 is closed at one end and connected to the main ventilation duct 37 at the other end, and is horizontally arranged on the vibrating de-bulking tank 31. An air outlet 361 is provided on the cold air duct 36 to blow air towards the filter comb 342. The cold air fan 38 is a YDM-P40Y type cold air fan, which can be set to blow cold air at 4-6℃ for de-bulking. The machine is also equipped with a control device, which can set the blowing volume of cold air for intelligent cold air de-bulking.

[0048] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A nitrogen-filled, antioxidant, continuous kneading and de-caking machine unit, comprising a kneading machine (1), characterized in that: The feed end of the kneading machine (1) is connected to an antioxidant feed conveyor (2), and the discharge end of the kneading machine (1) is connected to a vibrating deblocking conveyor (3). The antioxidant feeding and conveying device (2) includes a feeding frame (21) and a feeding fan (22) rotatably mounted on the feeding frame (21). A tea inlet hopper (23) is provided on the upper side of the feeding fan (22) to connect with the outlet of the blanching machine. The feeding fan (22) includes a grooved feeding wheel (221), and a set of partitions (222) are evenly arranged inside the grooved feeding wheel (221). The partitions (222) divide the grooved feeding wheel (221) into individual feeding hoppers (223). Both the grooved feeding wheel (221) and the partitions (222) adopt a perforated plate structure. Each feeding hopper (223) The bottom of the device is connected to an air pipe (27), and a shut-off valve (271) is installed on the air pipe (27). The feeding fan (22) is also equipped with an air suction plate (28) and a nitrogen filling plate (29). An air compressor (210) is connected to the air suction plate (28), and a nitrogen tank (211) is connected to the nitrogen filling plate (29). A set of air suction branch pipes (281) is installed on the air suction plate (28), and a set of nitrogen filling branch pipes (291) is installed on the nitrogen filling plate (29). Each air pipe (27) is connected to one of the air suction branch pipes (281) and the nitrogen filling branch pipe (291), and a three-way valve (212) is installed at the connection. The vibrating deblocking conveyor (3) includes a deblocking frame (310), a vibrating deblocking trough (31) disposed on the deblocking frame (310) and connected to the discharge port of the kneading machine (1), the deblocking frame (310) and the vibrating deblocking trough (31) are arranged inclined upwards, the bottom of the vibrating deblocking trough (31) is provided with a continuous corrugated groove (32), and a driving device (33) is also provided to drive the vibrating deblocking trough (31) to move; a set of dispersing filters (34) are also provided in the vibrating deblocking trough (31) at intervals, the dispersing filter (34) includes a filter mounting rod (341) placed horizontally in the vibrating deblocking trough (31), a row of filter combs (342) fixed on the filter mounting rod (341) for catching the tea balls rolling down from above, and a gap is reserved between the front end of the filter combs (342) and the bottom of the vibrating deblocking trough (31) for the tea leaves to move upwards after being dispersed; Each of the dispersing filters (34) of the vibrating deblocking conveyor (3) is further provided with a turning and deblocking device (35) in front of it. The turning and deblocking device (35) includes a turning shaft (351) rotatably installed in the vibrating deblocking trough (31) and a turning plate (352) installed on the turning shaft (351). The turning plate (352) is provided with serrated turning teeth (353), and the turning teeth (353) are in clearance fit with the bottom of the vibrating deblocking trough (31). The filter combs (342) are arranged horizontally, and a cold air duct (36) blowing towards the filter combs (342) is provided above the filter combs (342); a main ventilation duct (37) is provided on one side of the vibrating deblocking tank (31), and a cold air fan (38) is provided at one end of the main ventilation duct (37) where the material is fed into the vibrating deblocking tank (31), and the other end is closed; all the cold air ducts (36) are closed at one end and connected to the main ventilation duct (37) at the other end and are arranged horizontally on the vibrating deblocking tank (31), and an air outlet (361) blowing towards the filter combs (342) is provided on the cold air ducts (36); Multiple kneading machines (1) are arranged side by side. A vibrating discharge trough (4) is arranged at an incline above the kneading machine (1). A set of openable discharge cover plates (41) is provided at the bottom of the vibrating discharge trough (4). A discharge cylinder (42) is provided below the discharge cover plate (41). The discharge cylinder (42) corresponds to the kneading machine (1) one by one. A receiving hopper (25) is provided on the side below the feeding fan (22) on the other side of the tea inlet hopper (23). The discharge end of the receiving hopper (25) is located at the docking point of the feeding end of the vibrating discharge trough (4). The kneading machine (1) is provided with a discharge conveyor belt (6) below it, and the discharge port of the discharge conveyor belt (6) is connected to the feed end of the vibrating deblocking trough (31).

2. The nitrogen-filled, antioxidant, continuous kneading and de-caking unit as described in claim 1, characterized in that: The kneading machine (1) includes a kneading disc (11), a kneading drum (12), and a drum cover (13) on the kneading drum (12). The drum cover (13) includes a bottom pressure plate (131) and an upper sealing plate (132). A nitrogen filling chamber (133) is provided between the bottom pressure plate (131) and the upper sealing plate (132). A nitrogen inlet valve (14) is provided on the upper sealing plate (132). An outlet valve (15) is provided at the center of the bottom pressure plate (131). A nitrogen filling pipe (16) extending into the kneading drum (12) is connected to the outlet valve (15). Nitrogen outlet holes (161) are evenly distributed on the pipe wall of the nitrogen filling pipe (16). The bottom of the nitrogen filling pipe (16) is sealed.

3. The nitrogen-filled, antioxidant, continuous kneading and de-caking unit as described in claim 1, characterized in that: An electronic weighing device (26) is provided at the bottom of the tea inlet hopper (23), a feeding valve (261) is provided above the electronic weighing device (26), a weighing base plate (262) is provided at the bottom, and a flipping shaft (263) is connected to the weighing base plate (262).

4. The nitrogen-filled, antioxidant, continuous kneading and de-clumping machine unit as described in claim 2, characterized in that: The nitrogen filling tube (16) is also fitted with a rotatable protective cover (17), and a rotating bearing (18) is provided between the upper part of the protective cover (17) and the nitrogen filling tube (16); the protective cover (17) has a 100-mesh mesh structure; a flexible skirt (19) is installed at the bottom of the kneading drum (12).

5. The nitrogen-filled, antioxidant, continuous kneading and de-caking unit as described in claim 1, characterized in that: The driving device (33) includes a drive motor (331), an eccentric shaft (332) driven by the drive motor (331), and a transmission frame (333). A tie rod (334) is provided between the transmission frame (333) and the eccentric shaft (332). A set of swing arms (335) is provided on the deblocking frame (310). The two ends of the swing arms (335) are respectively connected to the transmission frame (333) and the vibrating deblocking groove (31).

Images