Winnowing equipment capable of repeatedly sorting for tea processing

Abstract

The invention discloses winnowing equipment capable of being repeatedly sorted for tea processing, and relates to the technical field of winnowing for tea processing, the winnowing equipment capable of being repeatedly sorted for tea processing comprises a winnowing box and further comprises an air inlet pipe arranged on one side of the winnowing box, a plurality of winnowing cavities are formed in the winnowing box, and the winnowing cavities are transversely distributed; the throwing box is arranged above the winnowing box, the throwing box communicates with the winnowing box through a feeding pipe, and a connecting belt is rotationally arranged in the throwing box; the tea leaf falling speed and the tea leaf falling amount can be controlled through the arrangement of the connecting belt and the protruding block, tea leaves can roll in the discharging gap while control is conducted, impurities attached to the tea leaves are separated from the tea leaves, meanwhile, the protruding block on the connecting belt can drive a sliding rod to move up and down, and the tea leaf falling speed and the tea leaf falling amount are controlled. Furthermore, the first cleaning rod and the second cleaning rod are driven to ascend and descend to remove tea attached to the third filter screen and the first filter screen during movement.

Description

Technical Field

[0001] This invention belongs to the field of air separation technology for tea processing, specifically, it relates to an air separation device for tea processing that can perform repeated sorting. Background Technology

[0002] The air separator is an important piece of equipment in tea processing. The principle of the tea air separator is to take advantage of the fact that particles with different internal qualities have different aerodynamic characteristics and drift different distances under the action of wind. It uses wind to remove impurities such as sand, dust, and green and yellow leaves from the tea leaves, and at the same time classifies the tea leaves according to particle size. It also distinguishes the quality of tea leaves based on the drift position of the tea leaves. It is a key piece of equipment in commercial tea processing.

[0003] In the process of using a wind separator, tea leaves are usually separated only once. This results in the wind separation process being affected by the falling speed and quantity of tea leaves, leading to incomplete wind separation. To address this, we propose a wind separator for tea processing that can be repeatedly separated. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a wind-sorting equipment for tea processing that can overcome or at least partially solve the above problems.

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is as follows: a reusable air-separating equipment for tea processing, including an air-separating box, and further including: an air inlet pipe disposed on one side of the air-separating box, wherein the air-separating box is provided with multiple air-separating chambers arranged horizontally; a feeding box disposed above the air-separating box, the feeding box being connected to the air-separating box via a feeding pipe, a connecting belt being rotatably disposed in the feeding box, one end of the connecting belt extending into the feeding pipe, and a protrusion fixedly connected to the outer wall of the connecting belt near the feeding pipe, thereby forming a feeding gap between the connecting belt and the inner wall of the other side of the feeding pipe, wherein the falling speed and falling amount of tea in the feeding box are controlled by moving the connecting belt near the feeding gap upward; and an exhaust pipe disposed on the air-separating box at a position opposite to the air inlet pipe.

[0006] Furthermore, a pre-air separation box is fixedly connected to the end of the feed pipe. A second filter screen is provided on both sides of the pre-air separation box. An air outlet pipe is provided on the pre-air separation box, and the air outlet pipe leads to the outside of the air separation box. A connecting pipe is fixedly connected to the bottom of the pre-air separation box. The pre-air separation box is used to allow the gas in the air separation box to enter the pre-air separation box through the second filter screen and be discharged outside the air separation box through the air outlet pipe. During the gas flow, the tea leaves passing through the pre-air separation box are initially air-separated.

[0007] Furthermore, a third filter screen is provided in the air outlet duct to prevent tea leaves from being discharged outside the air separator box.

[0008] Furthermore, a discharge pipe is installed on the air separator to discharge the tea leaves from the air separator chamber.

[0009] Furthermore, a secondary air separation pipe is fixedly connected to the discharge pipe, the secondary air separation pipe is perpendicular to the discharge pipe, and a first air pipe is installed on the air inlet pipe. The end of the first air pipe away from the air inlet pipe is connected to the discharge pipe, and the connection between the first air pipe and the discharge pipe is opposite to the secondary air separation pipe, so as to perform a second air separation on the tea leaves passing through the discharge pipe.

[0010] Furthermore, a first filter screen is provided in the secondary air separation pipe.

[0011] Furthermore, a baffle plate is rotatably connected to the first air duct to adjust the airflow entering the first air duct.

[0012] Furthermore, the exhaust duct is connected to the first duct via a second duct.

[0013] Furthermore, the pre-selection box and the discharge pipe are respectively equipped with a first cleaning rod and a second cleaning rod, which are respectively attached to the surface of the third filter screen and the first filter screen to scrape off the tea leaves adhering to the third filter screen and the first filter screen.

[0014] Preferably, a mounting block is fixedly connected to the pre-selection box, a sliding rod is slidably connected to the mounting block, the top end of the sliding rod corresponds to a protrusion on the connecting strip, a spring is fixedly connected to the sliding rod, the spring is fixedly connected to the mounting block, the first cleaning rod is fixedly connected to the sliding rod, a crossbar is fixedly connected to the sliding rod, a connecting rod is fixedly connected to the crossbar, and the second cleaning rod is fixedly connected to the connecting rod.

[0015] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0016] 1. This reusable tea processing air-separation equipment controls the falling speed of tea by driving the connecting belt to rotate in the feeding box. One side of the connecting belt is close to the side of the feeding pipe, that is, it is eccentrically set with the feeding pipe. This makes the gap between the connecting belt and the feeding pipe side small, while the gap between the connecting belt and the feeding pipe side is large, thus forming a feeding gap. When the protrusions on the connecting belt pass through the feeding gap, they can make the feeding gap fluctuate in size.

[0017] At the same time, by controlling the rotation direction of the connecting belt, the connecting belt located at the feeding gap rotates upward. When the tea leaves in the feeding box fall into the air classifier box through the feeding gap, they will contact the protrusions on the connecting belt, which will cause the tea leaves in the feeding gap to be driven upward by the upward-moving connecting belt, thereby effectively slowing down the speed and amount of tea leaves entering the air classifier box.

[0018] Meanwhile, as the connecting belt rotates, the tea leaves located in the feeding gap are driven upwards and backwards, which allows the tea leaves to tumble and detach the impurities attached to the tea leaves. This facilitates the tea leaves entering the air separator for efficient air separation. Therefore, the rotating connecting belt in this device can not only control the falling speed and amount of tea leaves, but also improve the efficiency and quality of subsequent tea air separation.

[0019] 2. This reusable air-separating equipment for tea processing uses a pre-air-separating box installed at the end of the feed pipe and connected to it. When air is introduced into the air-separating box through the air inlet pipe, some of the gas passes through the second filter and enters the pre-air-separating box, and is then discharged outside the air-separating box through the air outlet pipe. During this process, the gas generates flowing gas in the pre-air-separating box. The tea leaves entering the pre-air-separating box from the feed pipe are blown by this flowing gas as they fall. The flowing gas then carries away the tiny impurities mixed in with the tea leaves and discharges them outside the air-separating box through the air outlet pipe. Therefore, by setting up a pre-air-separating box, a preliminary air-separation operation can be performed on the tea leaves before they enter the air-separating box, which is more conducive to efficient air-separation of the tea leaves when they enter the air-separating box.

[0020] 3. This reusable air-sorting equipment for tea processing uses a rotating connecting belt to repeatedly contact one end of a slide bar with a protrusion. Since the protrusion protrudes from the outer surface of the connecting belt, when the protrusion contacts one end of the slide bar, it pushes the slide bar downward. This downward movement of the slide bar will then drive the first and second cleaning rods downward, thereby enabling the first and second cleaning rods to move up and down on the third and first filter screens, thus removing the tea leaves attached to the third and first filter screens.

[0021] Therefore, this invention can not only control the speed and amount of tea leaves falling by setting the connecting belt and the protrusion, but also make the tea leaves roll in the feeding gap while controlling them, so that the impurities attached to the tea leaves can be removed from the tea leaves. At the same time, the protrusion on the connecting belt can also drive the slide bar to move up and down, and then drive the first cleaning bar and the second cleaning bar to lift up and down to remove the tea leaves attached to the third filter screen and the first filter screen.

[0022] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0023] In the attached diagram:

[0024] Figure 1 This is a three-dimensional structural diagram of a repeatable air-sorting equipment for tea processing proposed in this invention. Figure 1 ;

[0025] Figure 2 A front view of the wind-sorting equipment for tea processing that can repeatedly sort tea leaves, as proposed in this invention. Figure 1 ;

[0026] Figure 3 This is a schematic diagram of the feeding box of a wind-sorting equipment for tea processing that can be repeatedly sorted according to the present invention.

[0027] Figure 4 This is a schematic diagram of the discharge pipe and secondary air separation pipe of an air separation equipment for tea processing that can be repeatedly sorted according to the present invention.

[0028] Figure 5 A front view of the wind-sorting equipment for tea processing that can repeatedly sort tea leaves, as proposed in this invention. Figure 2 ;

[0029] Figure 6 This invention proposes a reusable air-separation equipment for tea processing. Figure 5 Schematic diagram of the structure at point A;

[0030] Figure 7 This invention proposes a reusable air-separation equipment for tea processing. Figure 5 A schematic diagram of the structure at point B.

[0031] In the diagram: 1. Air separator box; 11. Air inlet pipe; 12. Air separator chamber; 13. Discharge pipe; 14. Secondary air separator pipe; 15. First filter screen; 16. First air duct; 161. Baffle plate; 17. Exhaust pipe; 171. Second air duct; 18. Debris chamber; 181. Discharge pipe; 2. Feed box; 21. Connecting belt; 22. Protrusion; 23. Feed pipe; 24. Pre-air separator box; 241. Second filter screen; 242. Air outlet pipe; 243. Third filter screen; 244. Mounting block; 245. Sliding rod; 246. Spring; 247. First cleaning rod; 248. Crossbar; 2481. Connecting rod; 2482. Second cleaning rod; 25. Connecting pipe. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0033] The following is in conjunction with the appendix Figure 1 - Appendix Figure 7 The technical solutions provided in the various embodiments of the present invention will be described in detail.

[0034] Example 1: Refer to Figures 1-7 A reusable air-sorting equipment for tea processing includes an air-sorting box 1, and further includes: an air inlet pipe 11 disposed on one side of the air-sorting box 1; multiple air-sorting chambers 12 disposed inside the air-sorting box 1, the air-sorting chambers 12 being arranged horizontally; and a feeding box 2 disposed above the air-sorting box 1, the feeding box 2 being connected to the air-sorting box 1 via a feeding pipe 23; a connecting belt 21 rotatably disposed in the feeding box 2, two rotating shafts on the connecting belt 21 being rotatably connected to the feeding pipe 23 and the inner wall of the feeding box 2, respectively; and a motor mounted on the feeding box 2. The motor is connected to one of the rotating shafts to drive the connecting belt 21 to rotate. One end of the connecting belt 21 extends into the feed pipe 23. The connecting belt 21 is close to the side of the feed pipe 23. A protrusion 22 is fixedly connected to the outer wall of the connecting belt 21, so that a feeding gap is formed between the connecting belt 21 and the inner wall of the other side of the feed pipe 23. The falling speed and falling amount of tea leaves in the feeding box 2 are controlled by moving the connecting belt 21 close to the feeding gap upward. The exhaust pipe 17 is set on the air separator 1 at the opposite position away from the air inlet pipe 11.

[0035] This device pours tea leaves into the feeding box 2. The tea leaves in the feeding box 2 fall into the air separation box 1 through the feeding pipe 23. When the air inlet pipe 11 on the air separation box 1 blows air into the air separation box 1, it performs air separation on the fallen tea leaves, so that the air-separated tea leaves fall into the air separation chamber 12, which is at a different distance from the air inlet pipe 11, for storage.

[0036] This device controls the falling speed of tea leaves by driving the connecting belt 21 to rotate in the feeding box 2. One side of the connecting belt 21 is close to the side of the feeding pipe 23, that is, it is eccentrically set with the feeding pipe 23. This makes the gap between the connecting belt 21 and the feeding pipe 23 small, while the gap between the connecting belt 21 and the feeding pipe 23 is large, thus forming the feeding gap. When the protrusion 22 on the connecting belt 21 passes through the feeding gap, it can make the feeding gap fluctuate in size.

[0037] Meanwhile, by controlling the rotation direction of the connecting belt 21, the connecting belt 21 located at the feeding gap rotates upward. When the tea leaves in the feeding box 2 fall into the air classifier box 1 through the feeding gap, they will contact the protrusion 22 on the connecting belt 21, thereby causing the tea leaves in the feeding gap to be driven upward by the upward-moving connecting belt 21, thus effectively slowing down the speed and amount of tea leaves entering the air classifier box 1.

[0038] Meanwhile, as the connecting belt 21 rotates, the tea leaves in the feeding gap are driven upwards and backwards, which allows the tea leaves to tumble over each other, thereby removing the impurities attached to the tea leaves and making it easier for the tea leaves to enter the air classifier box 1 for efficient air classification. Therefore, the rotating connecting belt 21 in this device can not only control the falling speed and amount of tea leaves, but also improve the efficiency and quality of subsequent tea air classification.

[0039] The air entering the air separator 1 through the air inlet pipe 11 will be discharged through the air outlet pipe 17. The air outlet pipe 17 is arranged opposite to the air inlet pipe 11, which allows the air entering the air separator 1 to be discharged smoothly outside the air separator 1 without obstruction, and avoids the air from generating eddies in the air separator 1, which would reduce the air separation efficiency.

[0040] Furthermore, a debris chamber 18 is provided in the air separator 1 at a distance from the air inlet pipe 11. The debris chamber 18 is provided with a connected discharge pipe 181. The debris chamber 18 can collect smaller impurities.

[0041] Example 2: Refer to Figure 1 , Figure 2 A reusable air-separating equipment for tea processing is basically the same as in Embodiment 1, but further: a pre-air-separating box 24 is fixedly connected to the end of the feed pipe 23, a second filter screen 241 is provided on both sides of the pre-air-separating box 24, an air outlet pipe 242 is provided on the pre-air-separating box 24, the air outlet pipe 242 leads to the outside of the air-separating box 1, and a connecting pipe 25 is fixedly connected to the bottom of the pre-air-separating box 24. The pre-air-separating box 24 is used to allow the gas in the air-separating box 1 to enter the pre-air-separating box 24 through the second filter screen 241 and be discharged outside the air-separating box 1 through the air outlet pipe 242. During the gas flow, the tea leaves passing through the pre-air-separating box 24 are initially air-separated.

[0042] This device, by setting a pre-selection box 24, can perform preliminary air selection on the tea leaves that are about to enter the air selection box 1 in the feed pipe 23, which can remove tiny impurities in the tea leaves that are about to enter the air selection box 1, making it more convenient for the tea leaves to enter the air selection box 1 for efficient air selection.

[0043] The pre-air classifier box 24 is installed at the end of the feed pipe 23 and is connected to the feed pipe 23. When air is introduced into the air classifier box 1 through the air inlet pipe 11, a part of the gas will enter the pre-air classifier box 24 through the second filter screen 241 and then be discharged to the outside of the air classifier box 1 through the air outlet pipe 242. During this process, the gas will generate flowing gas in the pre-air classifier box 24. At this time, the tea leaves entering the pre-air classifier box 24 from the feed pipe 23 will be blown by the flowing gas during the falling process. The flowing gas will discharge the tiny impurities mixed in the tea leaves to the outside of the air classifier box 1 through the air outlet pipe 242.

[0044] Therefore, by setting up a pre-selection box 24, a preliminary air separation operation can be performed on the tea leaves before they enter the air separation box 1, which is more conducive to efficient air separation of the tea leaves when they enter the air separation box 1.

[0045] Furthermore, in order to facilitate the collection of impurities discharged outside the air separator 1, a cloth bag can be fitted onto the end of the air outlet pipe 242. This cloth bag is breathable and can collect impurities, preventing them from being directly discharged into the environment, which is beneficial to improving environmental protection.

[0046] A third filter 243 is installed in the air outlet duct 242 to prevent tea leaves from being discharged outside the air separator box 1, so as to prevent the tea leaves from being carried out of the air separator box 1 when the air flows in the pre-air separator box 24.

[0047] Example 3: Reference Figure 1 A reusable air-separating equipment for tea processing is basically the same as in Example 2, but further: a discharge pipe 13 is installed on the air-separating box 1, and the inner wall of the air-separating chamber 12 is constricted towards the discharge pipe 13 to facilitate the discharge of tea leaves from the air-separating chamber 12, and at the same time facilitate the entry of tea leaves from the air-separating chamber 12 into the discharge pipe 13.

[0048] Reference Figure 3 , Figure 6 A secondary air separation pipe 14 is fixedly connected to the discharge pipe 13. The secondary air separation pipe 14 is perpendicular to the discharge pipe 13. A first air pipe 16 is installed on the air inlet pipe 11. The end of the first air pipe 16 away from the air inlet pipe 11 is connected to the discharge pipe 13. The connection between the first air pipe 16 and the discharge pipe 13 is opposite to the secondary air separation pipe 14. This is used to perform a second air separation on the tea leaves that have passed through the discharge pipe 13.

[0049] By setting up a first air duct 16, and connecting the first air duct 16 to multiple discharge pipes 13 on the air separator box 1, when the air separator box 1 performs air separation on the tea leaves falling into the air separator box 1 from the feeding box 2, the air-separated tea leaves will enter the air separation chamber 12 and then enter the discharge pipes 13. When the tea leaves pass through the discharge pipes 13, the air in the first air duct 16 will enter the discharge pipes 13. Since the connection between the first air duct 16 and the discharge pipes 13 is located opposite to the secondary air separator pipe 14, the air entering the discharge pipes 13 from the first air duct 16 will blow into the secondary air separator pipe 14. The tea leaves that pass through the discharge pipes 13 will be air-separated again, further improving the quality of the tea leaves.

[0050] A first filter screen 15 is provided in the secondary air separator 14 to prevent tea leaves from being blown into the secondary air separator 14.

[0051] Reference Figure 5A baffle plate 161 is rotatably connected to the first air duct 16 to adjust the air volume entering the first air duct 16. The baffle plate 161 is circular and installed in the first air duct 16. By rotating the angle of the baffle plate 161 in the first air duct 16, the opening and closing of the first air duct 16 can be easily controlled, thereby controlling the air volume entering the first air duct 16.

[0052] Reference Figure 5 The exhaust duct 17 is connected to the first duct 16 through the second duct 171, which facilitates the utilization of the exhaust air.

[0053] Example 4: Reference Figure 4 A reusable air-sorting equipment for tea processing is basically the same as in Example 3, but further: a first cleaning rod 247 and a second cleaning rod 2482 are respectively provided in the pre-sorting box 24 and the discharge pipe 13. The first cleaning rod 247 and the second cleaning rod 2482 are respectively attached to the surface of the third filter screen 243 and the first filter screen 15 to scrape off the tea leaves adhering to the third filter screen 243 and the first filter screen 15.

[0054] By driving the first cleaning rod 247 and the second cleaning rod 2482 to rise and fall, the first cleaning rod 247 and the second cleaning rod 2482 clean the tea leaves attached to the third filter screen 243 and the first filter screen 15, so as to avoid the tea leaves clogging the third filter screen 243 and the first filter screen 15, thereby effectively improving the air separation of tea leaves.

[0055] A mounting block 244 is fixedly connected to the pre-selection box 24. A sliding rod 245 is slidably connected to the mounting block 244. The top end of the sliding rod 245 corresponds to the protrusion 22 on the connecting strip 21. A spring 246 is fixedly connected to the sliding rod 245. The spring 246 is fixedly connected to the mounting block 244. A first cleaning rod 247 is fixedly connected to the sliding rod 245. A crossbar 248 is fixedly connected to the sliding rod 245. A connecting rod 2481 is fixedly connected to the crossbar 248. A second cleaning rod 2482 is fixedly connected to the connecting rod 2481.

[0056] During the rotation of the connecting belt 21, the protrusion 22 reciprocates in contact with one end of the slide bar 245. Since the protrusion 22 protrudes from the outer surface of the connecting belt 21, when the protrusion 22 contacts one end of the slide bar 245, it will push the slide bar 245 downward. At this time, the downward movement of the slide bar 245 will drive the first cleaning bar 247 and the second cleaning bar 2482 to move downward, thereby realizing the lifting and lowering action of the first cleaning bar 247 and the second cleaning bar 2482 on the third filter screen 243 and the first filter screen 15, thereby removing the tea leaves attached to the third filter screen 243 and the first filter screen 15.

[0057] Therefore, this device can not only control the speed and amount of tea leaves falling through the connecting belt 21 and the protrusion 22, but also make the tea leaves tumble in the feeding gap while controlling them, so that the impurities attached to the tea leaves can be removed from the tea leaves. At the same time, the protrusion 22 on the connecting belt 21 can also drive the slide bar 245 to move up and down, and then drive the first cleaning bar 247 and the second cleaning bar 2482 to lift and lower to remove the tea leaves attached to the third filter screen 243 and the first filter screen 15.

[0058] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A reusable air-separating device for tea processing, comprising an air-separating box (1), characterized in that, Also includes: An air inlet pipe (11) is provided on one side of the air separator (1), and the air separator (1) is provided with a plurality of air separator chambers (12), which are distributed laterally; The feeding box (2) is located above the air separator (1). The feeding box (2) and the air separator (1) are connected by a feed pipe (23). A connecting belt (21) is rotatably installed in the feeding box (2). One end of the connecting belt (21) extends into the feed pipe (23). The connecting belt (21) is close to the side of the feed pipe (23). A protrusion (22) is fixedly connected to the outer wall of the connecting belt (21), so that a feeding gap is formed between the connecting belt (21) and the inner wall of the other side of the feed pipe (23). The falling speed and falling amount of tea leaves in the feeding box (2) are controlled by moving the connecting belt (21) close to the feeding gap upward. An exhaust duct (17) is located on the air separator (1) at a position opposite to the air inlet duct (11).

2. The air-separating equipment for tea processing with repeatable sorting capability according to claim 1, characterized in that, A pre-air separation box (24) is fixedly connected to the end of the feed pipe (23). A second filter screen (241) is provided on both sides of the pre-air separation box (24). An air outlet pipe (242) is provided on the pre-air separation box (24). The air outlet pipe (242) leads to the outside of the air separation box (1). A connecting pipe (25) is fixedly connected to the bottom of the pre-air separation box (24). The pre-air separation box (24) is used to allow the gas in the air separation box (1) to enter the pre-air separation box (24) through the second filter screen (241) and be discharged outside the air separation box (1) through the air outlet pipe (242). During the gas flow process, the tea leaves passing through the pre-air separation box (24) are initially air-separated.

3. The air-separating equipment for tea processing with repeatable sorting capability according to claim 2, characterized in that, A third filter (243) is provided in the air outlet pipe (242) to prevent tea leaves from being discharged outside the air separator (1).

4. The air-separating equipment for tea processing with repeatable sorting capability according to claim 2, characterized in that, The air separator (1) is equipped with a discharge pipe (13) for discharging tea leaves from the air separator (12).

5. The air-separating equipment for tea processing with repeatable sorting capability according to claim 4, characterized in that, A secondary air separation pipe (14) is fixedly connected to the discharge pipe (13). The secondary air separation pipe (14) is perpendicular to the discharge pipe (13). A first air pipe (16) is installed on the air inlet pipe (11). The end of the first air pipe (16) away from the air inlet pipe (11) is connected to the discharge pipe (13). The connection between the first air pipe (16) and the discharge pipe (13) is opposite to the secondary air separation pipe (14), which is used to perform a second air separation on the tea leaves that have passed through the discharge pipe (13).

6. The air-separating equipment for tea processing with repeatable sorting capability according to claim 5, characterized in that, The secondary air separator (14) is equipped with a first filter screen (15).

7. The air-separating equipment for tea processing with repeatable sorting capability according to claim 6, characterized in that, A baffle plate (161) is rotatably connected in the first air duct (16) to adjust the air volume entering the first air duct (16).

8. The air-separating equipment for tea processing with repeatable sorting capability according to claim 6, characterized in that, The exhaust duct (17) is connected to the first duct (16) through the second duct (171).

9. The air-separating equipment for tea processing with repeatable sorting capability according to claim 6, characterized in that, The pre-selection box (24) and discharge pipe (13) are respectively provided with a first cleaning rod (247) and a second cleaning rod (2482). The first cleaning rod (247) and the second cleaning rod (2482) are respectively attached to the surface of the third filter screen (243) and the first filter screen (15) to scrape off the tea leaves adhering to the third filter screen (243) and the first filter screen (15).

10. The air-separating equipment for tea processing with repeatable sorting capability according to claim 9, characterized in that, An installation block (244) is fixedly connected to the pre-selection box (24). A slide rod (245) is slidably connected to the installation block (244). The top end of the slide rod (245) corresponds to the protrusion (22) on the connecting strip (21). A spring (246) is fixedly connected to the slide rod (245). The spring (246) is fixedly connected to the installation block (244). The first cleaning rod (247) is fixedly connected to the slide rod (245). A crossbar (248) is fixedly connected to the slide rod (245). A connecting rod (2481) is fixedly connected to the crossbar (248). The second cleaning rod (2482) is fixedly connected to the connecting rod (2481).

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