Continuous impurity removal equipment for refining tea leaves

Abstract

A continuous impurity removal device for tea refining comprises a box body, a feeding port is formed in the top of the box body, a first material guide plate is arranged on the portion, located on the lower side of the feeding port, in the box body, an air inlet is formed in one side of the box body, the first material guide plate inclines towards one side of the air inlet, and a draught fan is installed on the portion, located at the air inlet, of the outer side of the box body. An air inlet is formed in the box body, an air outlet channel is formed in one side, opposite to the air inlet, of the box body, a vibrating screen is further installed on the lower side in the box body, the air outlet channel is an open air outlet, a discharging port is further formed in the box body and located on the lower side of the air inlet, the vibrating screen is obliquely and elastically installed and connected with the box body, the high end of the vibrating screen is located in the box body, and the low end of the vibrating screen extends out of the discharging port. And the box body is provided with a drawer below the vibrating screen. Through the structure, continuous impurity removing and sorting production is achieved, and the sorting effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of black tea refining, in particular to a continuous impurity removal device for tea refining. Background Technique

[0002] Chinese patent document CN220195556U, publication (announcement) date: December 19, 2023, is a winnowing device for black tea processing publicly disclosed by our company, including a winnowing box. A transparent observation port is embedded in the upper end of the front of the winnowing box. A feed port is arranged in the middle of the upper end of the winnowing box. A flip door is hinged on one side of the lower end of the front of the winnowing box. A fan is embedded on one side of the upper end of the winnowing box. One end of the top of the inner cavity of the winnowing box is provided with a first inclined plate. Through holes are evenly arranged at one end of the inner cavity of the winnowing box far from the fan. Second inclined plates are symmetrically arranged on both sides of the middle of the inner cavity of the winnowing box.

[0003] Its characteristics are as follows: Through the mutual cooperation of the fan, through holes, sieve mesh, vibration motor, first collection box, support plate, and compression spring, the sorting of dust and small particle tea leaves can be realized. First, the dust is blown out by the fan, and then the smaller or incomplete tea leaves are screened and collected through the sieve mesh, eliminating the need for separate screening of incomplete tea leaves and improving the efficiency.

[0004] Its deficiencies are as follows: First, the sorted tea leaves accumulate on the sieve mesh, making continuous production impossible; Second, during the process of the fan blowing dust, not only dust and fragments are blown out, but also single pieces of tea leaves inside the tea are blown out, and the single pieces of tea leaves will block the through holes, affecting the sorting effect; Third, a filter screen is arranged in the filter collection box. Although the filter screen allows air to pass through, when the air pressure is low, the ventilation efficiency will be reduced, resulting in the air not being able to smoothly discharge through the filter screen, which will also affect the sorting effect. In response to the above problems, the device has been improved. Content of the Utility Model

[0005] The technical problem to be solved by the utility model is: to solve the problems existing in the above background technique, and provide a continuous impurity removal device for tea refining. By improving the structures of the air outlet channel and the vibrating screen, continuous impurity removal sorting production is realized, and the sorting effect is improved.

[0006] To solve the above technical problems, the technical solution adopted by the present utility model is as follows: A continuous tea refining impurity removal device, comprising a box body, a feed inlet is provided at the top of the box body, a first guide plate is provided inside the box body below the feed inlet, an air inlet is provided on one side of the box body, the first guide plate is inclined towards the air inlet side, a fan is installed on the outside of the box body at the air inlet, an air outlet channel is provided on the opposite side of the box body to the air inlet, a vibrating screen is further installed at the lower side inside the box body, the air outlet channel is an open air outlet, a discharge outlet is further provided at the lower side of the box body at the air inlet, the vibrating screen is installed and connected to the box body in an inclined and elastic manner, the higher end of the vibrating screen is located inside the box body, and the lower end extends out of the discharge outlet, and a drawer is provided below the box body at the vibrating screen.

[0007] A wind guiding hopper is installed inside the box body at the air inlet.

[0008] A wind guiding grid is installed at the end of the wind guiding hopper.

[0009] A second guide plate is installed inside the box body at the air outlet channel.

[0010] A third guide plate and a fourth guide plate are installed inside the box body between the air inlet and the vibrating screen. The third guide plate is located on the air inlet side, the fourth guide plate is located on the air outlet channel side, and the discharge port between the third guide plate and the fourth guide plate is located at the upper end of the vibrating screen.

[0011] The vibrating screen comprises a screen trough and a vibrating motor. Screen holes are provided in the upper section of the bottom of the screen trough. The vibrating motor is located inside the box body and is installed at the lower section of the bottom of the screen trough. First support seats are installed on both sides of the screen trough, and second support seats are respectively provided on both sides of the inner wall of the box body corresponding to the first support seats. The first support seats and the second support seats are connected by springs.

[0012] A wind shield is provided on the outer wall of the box body above the air outlet channel.

[0013] Vibration damping pads are installed at the bottom of the box body.

[0014] The present utility model has the following beneficial effects:

[0015] 1. The first guide plate of the present utility model is used to guide the tea leaves input from the feed inlet to the air inlet. The dust, fine powder and single tea leaves blown out by the fan are discharged from the air outlet channel. The heavier tea leaves will fall on the vibrating screen for further screening. The larger fine powder not blown out is screened out from the vibrating screen and falls into the drawer below, and the complete tea leaves are discharged from the lower end of the vibrating screen. Through the above structure, continuous impurity removal and sorting production are realized, and the sorting effect is improved.

[0016] 2. Inside the box body of the present utility model, a wind guiding hopper is installed at the air inlet. The wind guiding hopper has a rectangular air outlet, so that the airflow can be concentrated to blow the tea leaves, improving the sorting effect of the fan.

[0017] 3. A wind guiding grid is installed at the end of the wind guiding hopper of the present utility model. The wind guiding grid is formed by connecting multiple metal plates that crisscross vertically and horizontally to form multiple rectangular grids, stabilizing the airflow of the fan through the wind guiding grid and making the wind blown out from the wind guiding hopper more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0019] Figure 1 It is a front view structural schematic diagram of the present utility model.

[0020] Figure 2 It is a sectional view structural schematic diagram of the present utility model.

[0021] Figure 3 For Figure 2 It is a sectional view structural schematic diagram of A - A in

[0022] In the figure:

[0023] Box body 10, feeding port 11, first guiding plate 12, air inlet 13, air outlet channel 14, discharging port 15, third guiding plate 16, fourth guiding plate 17, second guiding plate 18, wind baffle 19;

[0024] Fan 20, wind guiding hopper 21, wind guiding grid 22;

[0025] Vibrating screen 30, screen trough 31, screen holes 32, vibrating motor 33, first support seat 34, second support seat 35, spring 36;

[0026] Drawer 40;

[0027] Vibration damping pad 50;

[0028] Collection bucket 60. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] As Figures 1 - 3As shown, a tea refining and continuous impurity removal device comprises a box body 10, a feeding port 11 is arranged on the top of the box body 10, a first guide plate 12 is arranged inside the box body 10 at the lower side of the feeding port 11, an air inlet 13 is arranged on one side of the box body 10, the first guide plate 12 is inclined toward the air inlet 13, a fan 20 is installed on the outer side of the box body 10 at the air inlet 13, an air outlet channel 14 is arranged on the side of the box body 10 opposite to the air inlet 13, a vibrating screen 30 is also installed on the lower side of the box body 10, the air outlet channel 14 is an open air outlet, the box body 10 is also provided with a discharge port 15 on the lower side of the air inlet 13, the vibrating screen 30 is obliquely and elastically installed and connected to the box body 10, the higher end of the vibrating screen 30 is located in the box body 10, and the lower end extends out of the discharge port 15, and the box body 10 is provided with a drawer 40 below the vibrating screen 30.

[0030] The first guide plate 12 is used to guide the tea leaves fed from the feed port 11 to the air inlet 13. The dust, broken pieces and tea leaves blown out by the fan 20 are discharged from the air outlet channel 14. The heavier tea leaves fall on the vibrating screen 30 for further screening. The heavier broken pieces that are not blown out are screened out of the vibrating screen 30 and fall into the drawer 40 below. The complete tea leaves are discharged from the lower end of the vibrating screen 30. Through the above structure, continuous impurity removal and sorting production is realized, and the sorting effect is improved.

[0031] For further information, see Figure 2 , 3 The box 10 is provided with an air guide 21 at the air inlet 13. The air guide 21 has a rectangular air outlet, so that the air flow can be concentrated to blow the tea leaves, thereby improving the sorting effect of the fan 20. Specifically, the fan 20 is an axial flow fan.

[0032] Furthermore, a wind guide 22 is installed at the end of the wind guide scoop 21. The wind guide 22 is formed by connecting a plurality of crisscross metal plates to form a plurality of rectangular grids, and the wind guide 22 stabilizes the airflow of the fan 20, making the wind blown out from the wind guide scoop 21 more stable.

[0033] See also Figure 2 A second guide plate 18 is installed in the box body 10 at the air outlet 14. A buffer zone is formed by the second guide plate 18 to receive dust, broken pieces and tea leaves, so that the air volume can be reduced.

[0034] Further, a third material guide plate 16 and a fourth material guide plate 17 are installed inside the box body 10 between the air inlet 13 and the vibrating screen 30. The third material guide plate 16 is located on one side of the air inlet 13, and the fourth material guide plate 17 is located on one side of the air outlet passage 14. The discharge port between the third material guide plate 16 and the fourth material guide plate 17 is located at the upper end of the vibrating screen 30. By arranging the third material guide plate 16 and the fourth material guide plate 17, it is convenient for the tea leaves to fall onto the upper end of the vibrating screen 30, thereby providing a longer space for the vibrating screen 30 to screen.

[0035] Specifically, the vibrating screen 30 includes a screen trough 31 and a vibrating motor 33. Screen holes 32 are arranged in the upper section of the bottom of the screen trough 31. The vibrating motor 33 is located inside the box body 10 and is installed at the lower section of the bottom of the screen trough 31. First support seats 34 are installed on both sides of the screen trough 31, and second support seats 35 are respectively arranged on the inner wall of the box body 10 corresponding to both sides of the first support seats 34. The first support seats 34 and the second support seats 35 are connected by springs 36. The vibrating motor 33 is an off-the-shelf product.

[0036] See Figure 2 , a wind shield 19 is arranged on the outer wall of the box body 10 on the upper side of the air outlet passage 14. To prevent dust, debris and single tea leaves from flying. During actual use, a collection bucket 60 is placed under the wind shield 19 to collect the dust, debris and single tea leaves that fly.

[0037] Further, a shock-absorbing pad 50 is installed at the bottom of the box body 10 to dampen the vibration of the box body 10 during operation. The shock-absorbing pad 50 is an off-the-shelf product.

[0038] The operation process or principle of the present utility model is as follows:

[0039] During use, see Figure 2 , driven by the fan 20 and the vibrating screen 30, the tea leaves are evenly fed into the feed port 11 through the lifting feeder. Then, the tea leaves are guided by the first material guide plate 12 to be close to the air inlet 13. The dust, debris and single tea leaves blown out by the fan 20 are discharged from the air outlet passage 14. The heavier tea leaves will fall onto the third material guide plate 16 and the fourth material guide plate 17 and then drop onto the upper end of the vibrating screen 30. The tea leaves are further screened on the vibrating screen 30. The larger debris that is not blown out is screened out from the vibrating screen 30 and falls into the lower drawer 40. The complete tea leaves are discharged from the lower end of the vibrating screen 30 to achieve continuous production operation.

[0040] The heavier debris in the drawer 40 is regularly opened and cleaned.

Claims

1. A tea refining and continuous impurity removal device, comprising a box (10), a feed inlet (11) is arranged on the top of the box (10), a first guide plate (12) is arranged inside the box (10) at the lower side of the feed inlet (11), an air inlet (13) is arranged on one side of the box (10), the first guide plate (12) is inclined toward the air inlet (13), a fan (20) is installed on the outer side of the box (10) at the air inlet (13), an air outlet channel (14) is arranged on the side of the box (10) opposite to the air inlet (13), and a vibrating screen (30) is also installed on the lower side of the box (10), characterized in that: The air outlet channel (14) is an open air outlet. The box (10) is further provided with an outlet (15) at the lower side of the air inlet (13). The vibrating screen (30) is elastically installed and connected to the box (10) in an inclined manner. The higher end of the vibrating screen (30) is located in the box (10) and the lower end extends out of the outlet (15). The box (10) is provided with a drawer (40) below the vibrating screen (30).

2. The tea refining and continuous impurity removal equipment according to claim 1 is characterized in that: An air guide scoop (21) is installed inside the box (10) at the air inlet (13).

3. A tea refining and continuous impurity removal device according to claim 2, characterized in that: A wind guide (22) is installed at the end of the wind guide scoop (21).

4. The tea refining and continuous impurity removal equipment according to claim 1 is characterized by: A second material guide plate (18) is installed inside the box (10) at the air outlet channel (14).

5. A tea refining and continuous impurity removal device according to claim 1 or 4, characterized in that: A third material guide plate (16) and a fourth material guide plate (17) are installed in the box body (10) between the air inlet (13) and the vibrating screen (30); the third material guide plate (16) is located on one side of the air inlet (13); the fourth material guide plate (17) is located on one side of the air outlet channel (14); and a material discharge port between the third material guide plate (16) and the fourth material guide plate (17) is located at the upper end of the vibrating screen (30).

6. The tea refining and continuous impurity removal equipment according to claim 1, characterized in that: The vibrating screen (30) comprises a screen slot (31) and a vibrating motor (33); a screen hole (32) is provided at the upper bottom section of the screen slot (31); the vibrating motor (33) is located inside the box body (10) and is mounted at the lower bottom section of the screen slot (31); first support seats (34) are mounted on both sides of the screen slot (31); second support seats (35) are respectively provided on the inner wall of the box body (10) at both sides corresponding to the first support seats (34); and the first support seat (34) and the second support seat (35) are connected via a spring (36).

7. The tea refining and continuous impurity removal equipment according to claim 1 is characterized by: The outer wall of the box body (10) is provided with a wind shield (19) on the upper side of the air outlet channel (14).

8. The tea refining and continuous impurity removal equipment according to claim 1 is characterized by: A vibration-damping pad (50) is installed at the bottom of the box body (10).

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