Efficient grading and screening equipment for fine processing of tea leaves

Abstract

The invention relates to the field of screening equipment, in particular to efficient grading screening equipment for fine processing of tea leaves, which comprises a stock bin, a conveying belt, a winnowing module, a first fine screening module, a second fine screening module, a driving assembly and a first waste outlet, the conveying belt is used for conveying materials discharged from the discharging opening of the stock bin to an inlet of the winnowing module; the winnowing module is used for achieving preliminary screening and conveying materials obtained after preliminary screening into the first fine screening module, the second fine screening module and the first waste outlet. Original leaves are separated into large leaves and small leaves through the winnowing module, the large leaves and the small leaves are conveyed into the first fine screening module and the second fine screening module, the small leaves and impurities in the large leaves are separated again through the second fine screening module, the small leaves and the impurities enter the first fine screening module, the large leaves in the small leaves are separated through the first fine screening module, and the small leaves and the impurities enter the second fine screening module. And redundant impurities are separated.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of screening equipment, in particular to a high-efficiency grading and screening equipment for tea processing. BACKGROUND

[0002] When tea is processed, it is necessary to screen tea according to size and remove impurities and stems in tea at the same time, so as to facilitate further processing of tea. The existing tea screening method is mainly air selection or vibration screening, which often affects the separation effect due to tea accumulation into lumps. SUMMARY

[0003] In view of the problems in the prior art, the present application provides a high-efficiency grading and screening equipment for tea processing.

[0004] A high-efficiency grading and screening equipment for tea processing, comprising a stock bin, a conveyor belt, an air selection module, a first fine screen module, a second fine screen module, a driving assembly and a first waste outlet, wherein The stock bin comprises a feed inlet and a discharge outlet, and the discharge outlet faces the conveyor belt. The conveyor belt is used to convey the material discharged from the discharge outlet of the stock bin to the inlet of the air selection module. The air selection module is used to realize preliminary screening and convey the preliminarily screened material into the first fine screen module, the second fine screen module and the first waste outlet, respectively. The second fine screen module is used to realize secondary screening, and the material separated from the third screening enters the first fine screen module. The first fine screen module is used to realize tertiary screening. The driving assembly is used to synchronously drive the first fine screen module and the second fine screen module.

[0005] Further, when the air selection module realizes preliminary screening, it screens the original leaves into large leaf piles and small leaf piles according to size, and separates impurities from the original leaves, the large leaf piles enter the second fine screen module, the small leaf piles enter the first fine screen module, and the impurities enter the first waste outlet.

[0006] Further, the second fine screen module comprises a material passing plate, a large leaf outlet and a third screen hole, when realizing secondary screening, the leaves, impurities and stems passing through the third screen hole fall into the material passing plate and finally enter the first fine screen module for tertiary screening, and the leaves not passing through the screen hole fall into the large leaf outlet.

[0007] Further, the first fine screen module includes a first screen hole, a second screen hole, a second waste outlet, and a small leaf outlet. When three-stage screening is implemented, the leaves, impurities, and leaf stems passing through the first screen hole fall into the second waste outlet, the leaves passing through the second screen hole fall into the small leaf outlet, and the leaves not passing through the first screen hole and the second screen hole fall into the large leaf outlet.

[0008] Further, the winnowing module includes a partition plate, a support plate, a first winnowing plate, a second winnowing plate, a first fan, a first air port, a second fan, a sealing duct, a second air port, and a discharging plate. The partition plate includes a first partition plate, a second partition plate, and a third partition plate arranged in order from high to low. The first partition plate, the second partition plate, and the third partition plate are fixedly connected with two support plates arranged in front and back. The first winnowing plate and the second winnowing plate are both arranged in an inclined manner with the left side being higher than the right side. The first partition plate and the third partition plate are both provided with air holes. The first fan and the second fan are respectively installed at the air holes. The first partition plate is provided with the second air port at the top. The outlet of the second air port is arranged towards the second partition plate. The second partition plate is provided with the first air port at the top. The outlet of the first air port is arranged towards the first partition plate. The left side of the first partition plate is provided with the sealing duct for guiding the airflow at the second fan to the second air port. The discharging plate is provided with two plates arranged above the second air port in a funnel-shaped inclined manner. The right end surface of the second winnowing plate is arranged above the outlet of the first air port.

[0009] Further, the top of the second partition plate and the top of the third partition plate are fixedly connected with the first winnowing plate. The second winnowing plate is arranged between the first partition plate and the second partition plate. The first partition plate is fixedly connected with the second winnowing plate.

[0010] Further, the driving assembly includes a base, a sliding block, a cross bar, a damping piece, a support, and a vibration machine. The top of the base is provided with two sliding rails. Each sliding rail is provided with a sliding block. A plurality of rolling shafts are arranged between the sliding block and the sliding rail. A plurality of cross bars are fixedly connected between the two sliding blocks. Each cross bar is fixedly connected with a plurality of damping pieces at the top. The damping pieces are fixedly connected with the support at the top. The first fine screen module and the second fine screen module are fixedly connected with the support. The vibration machine is fixedly installed on the base. The output end of the vibration machine is fixedly connected with one of the plurality of cross bars.

[0011] Further, a gap is arranged between the first winnowing plate and the second partition plate. The first winnowing plate is rotationally connected with the third partition plate. The first winnowing plate is provided with an angle adjusting module at one side to adjust the angle of the first winnowing plate.

[0012] Further, the angle adjusting module includes a connecting block and an electric cylinder. The top of the first winnowing plate is fixedly connected with the connecting block. The connecting block is in a triangular prism shape. The electric cylinder is arranged at one side of the connecting block. One end of the electric cylinder is rotationally connected with the support plate. The other end of the electric cylinder is rotationally connected with the connecting block.

[0013] Technical effects and advantages of the present application: In the present application, the original leaves are separated into large leaves and small leaves by the winnowing module and transported to the first fine screen module and the second fine screen module. The small leaves and impurities in the large leaves are separated again in the second fine screen module. The small leaves and impurities enter the first fine screen module. The first fine screen module separates the large leaves in the small leaves and separates the excess impurities.

[0014] Other features and advantages of the present application will be set forth in the following description, and in part will become apparent from the description, or can be learned by practice of the present application. The objects and other advantages of the present application will be realized and attained by the structure particularly pointed out in the written description and the appended drawings. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 A structural schematic diagram of a high-efficiency grading and screening device for tea leaf finishing is shown. Figure 2 A structural schematic diagram of a winnowing module is shown. Figure 3 A structural schematic diagram of a fine screen module and a driving assembly is shown. Figure 4 A sectional view of the winnowing module is shown. Figure 5 A structural schematic diagram of a driving module is shown. Figure 6 A side view of the driving module is shown. Figure 7 A structural schematic diagram of a winnowing module in another embodiment is shown. In the figure: 1 - hopper, 2 - conveying belt, 3 - winnowing module, 4 - first fine screen module, 5 - second fine screen module, 6 - driving assembly, 7 - first waste outlet, 8 - angle adjustment module. 30 - partition, 31 - support plate, 32 - first winnowing plate, 33 - second winnowing plate, 34 - first fan, 35 - first air port, 36 - second fan, 37 - sealing tunnel, 38 - second air port, 39 - discharging plate. 41 - first screen hole, 42 - second screen hole, 43 - second waste outlet, 44 - small leaf outlet. 51 - material passing plate, 52 - large leaf outlet, 53 - third screen hole. 60 - base, 61 - sliding block, 62 - cross bar, 63 - damping member, 64 - support, 65 - vibrating machine. 81 - connecting block, 82 - electric cylinder. DETAILED DESCRIPTION

[0016] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0017] Furthermore, in the application, the terms "first," "second," and other similar words are not intended to imply any order, quantity, or importance, but are merely used to distinguish different elements, and the terms "upper," "lower," "left," "right," and other similar words are merely positional relationships in the accompanying drawings.

[0018] like Figure 1 As shown in the figure, this application provides a high-efficiency grading and screening device for tea refining, including: a hopper 1, a conveyor belt 2, an air separation module 3, a first fine sieve module 4, a second fine sieve module 5, a drive assembly 6, and a first waste outlet 7, wherein... The hopper 1 includes an inlet and an outlet, with the outlet facing the conveyor belt 2; The conveyor belt 2 is used to transport the material discharged from the outlet of the silo 1 to the inlet of the air separation module 3; The air separation module 3 is used to perform preliminary screening and to transport the pre-screened material to the first fine screening module 4, the second fine screening module 5, and the first waste outlet 7 respectively. The second fine screening module 5 is used to perform secondary screening, and the material separated from the tertiary screening enters the first fine screening module 4; The first fine screening module 4 is used to achieve three-stage screening; The drive component 6 is used to synchronously drive the first fine sieve module 4 and the second fine sieve module 5.

[0019] Specifically: like Figure 4 As shown, the air separation module 3, during the initial screening, separates the raw leaves into large leaf piles and small leaf piles according to their size, and separates impurities from the raw leaves. The large leaf piles enter the second fine screening module 5, the small leaf piles enter the first fine screening module 4, and the impurities enter the first waste outlet 7. like Figure 3 As shown, the second fine screening module 5 includes a material conveying plate 51, a large leaf outlet 52, and a third screen hole 53. When performing secondary screening, the blades, impurities, and leaf stems that pass through the third screen hole 53 fall into the material conveying plate 51 and eventually enter the first fine screening module 4 for tertiary screening. The blades that do not pass through the screen hole fall into the large leaf outlet 52. like Figure 3 and Figure 6As shown, the first fine screening module 4 includes a first screen hole 41, a second screen hole 42, a second waste outlet 43, and a small leaf outlet 44. When three-stage screening is achieved, the leaves, impurities, and leaf stems that pass through the first screen hole 41 fall into the second waste outlet 43, the leaves that pass through the second screen hole 42 fall into the small leaf outlet 44, and the leaves that do not pass through the first screen hole 41 and the second screen hole 42 fall into the large leaf outlet 52. like Figure 2 As shown, in one embodiment of this application, the air separation module 3 includes a partition 30, a support plate 31, a first air separation plate 32, a second air separation plate 33, a first fan 34, a first air outlet 35, a second fan 36, a sealed duct 37, a second air outlet 38, and a discharge plate 39. The partition 30 includes a first partition, a second partition, and a third partition arranged from high to low. The first partition, the second partition, and the third partition are all fixedly connected to two support plates 31 arranged in front and behind. The tops of the second partition and the third partition are fixedly connected to the first air separation plate 32. The second air separation plate 33 is located between the first partition and the second partition. The first partition and the second air separation plate 33 are fixedly connected. The first air separation plate 32 and the first support plate 33 are connected to each other. Both air separator plates 33 are configured with an inclined arrangement, higher on the left and lower on the right; air holes are provided on both the first and third partition plates, and the first fan 34 and the second fan 36 are respectively installed at the two air holes; a second air outlet 38 is provided at the top of the first partition plate, with the outlet of the second air outlet 38 facing the second partition plate; a first air outlet 35 is provided at the top of the second partition plate, with the outlet of the first air outlet 35 facing the first partition plate; a sealed duct 37 is provided on the left side of the first partition plate to guide the airflow from the second fan 36 to the second air outlet 38; two feeding plates 39 are provided, located above the second air outlet 38, and the two feeding plates 39 are inclined in a funnel shape; the right end face of the second air separator plate 33 is located above the outlet of the first air outlet 35; With this setup, the conveyor belt 2 transports the blades to the discharge plate 39, where they slide down to the second air outlet 38. The second fan 36 then delivers airflow into the second air outlet 38, achieving separation of the "large blades." The "large blades" fall onto the first air separator 32, while the other blades fall onto the second air separator 33, sliding down to the first air outlet 35. The first fan 34 then delivers airflow into the first air outlet 35, achieving separation of the "small blades." The "small blades" fall onto the first fine screen module 4, while other impurities, stems, etc., fall into the first waste outlet 7.

[0020] It should be noted that, as Figure 2 As shown, the first fan 34 delivers airflow to the left. After passing through the first air outlet 35, the airflow is guided again by the second fan 36 into the sealed duct 37, which can prevent the airflow from overflowing from the gap and blowing the tea leaves out of the air separation mechanism 3.

[0021] like Figure 3 and Figure 5As shown, the drive assembly 6 includes a base 60, a slider 61, a crossbar 62, a damping element 63, a bracket 64, and a vibrator 65. The base 60 has two slide rails on its top, each slide rail containing a slider 61. Several rollers are provided between the slider 61 and the slide rail. Several crossbars 62 are fixedly connected between two sliders 61. Several damping elements 63 are fixedly connected to the top of each crossbar 62. The top of the damping element 63 is fixedly connected to the bracket 64. The first fine screening module 4 and the second fine screening module 5 are both fixedly connected to the bracket 64. The vibrator 65 is fixedly installed on the base 60, and the output end of the vibrator 65 is fixedly connected to one of the multiple crossbars 62. With this setup, after the vibrator 65 starts, it outputs vibration to the crossbar 62. The crossbar 62 drives the damping element 63 to move back and forth, thereby driving the support 64 to complete the upward reciprocating movement, thus realizing vibration transmission.

[0022] like Figure 7 As shown, in one embodiment of this application, there is a gap between the first air separator plate 32 and the second partition plate, the first air separator plate 32 is rotatably connected to the third partition plate, and an angle adjustment module 8 is provided on one side of the first air separator plate 32 to realize the angle adjustment of the first air separator plate 32. Specifically: The angle adjustment module 8 includes a connecting block 81 and an electric cylinder 82. The connecting block 81 is fixedly connected to the top of the first air separator plate 32. The connecting block 81 is triangular prism-shaped. An electric cylinder 82 is provided on one side of the connecting block 81. One end of the electric cylinder 82 is rotatably connected to the support plate 31, and the other end of the electric cylinder 82 is rotatably connected to the connecting block 81. With this setup, by controlling the extension and retraction of the electric cylinder 82, the first air separator plate 32 can be rotated, thereby adjusting the angle of the first air separator plate 32. For different types and sizes of tea, different separation effects can be obtained by adjusting the angle of the first air separator plate 32.

[0023] Finally, it should be noted that the above description is only a preferred embodiment of this application and is not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A high-efficiency grading and screening device for tea refining, characterized in that, include: The components include a hopper (1), a conveyor belt (2), an air separation module (3), a first fine screening module (4), a second fine screening module (5), a drive assembly (6), and a first waste outlet (7). The hopper (1) includes an inlet and an outlet, with the outlet facing the conveyor belt (2). The conveyor belt (2) is used to transport the material discharged from the outlet of the silo (1) to the inlet of the air separation module (3); The air separation module (3) is used to perform preliminary screening and to transport the pre-screened material to the first fine screening module (4), the second fine screening module (5), and the first waste outlet (7), respectively. The second fine screening module (5) is used to perform secondary screening, and the material separated from the tertiary screening enters the first fine screening module (4); The first fine screening module (4) is used to realize three-stage screening; The drive component (6) is used to synchronously drive the first fine sieve module (4) and the second fine sieve module (5).

2. The high-efficiency grading and screening equipment for tea refining according to claim 1, characterized in that, When the air separation module (3) performs preliminary screening, it separates the original leaves into large leaf piles and small leaf piles according to their size, and separates impurities from the original leaves. The large leaf piles enter the second fine screening module (5), the small leaf piles enter the first fine screening module (4), and the impurities enter the first waste outlet (7).

3. The high-efficiency grading and screening equipment for tea refining according to claim 2, characterized in that, The second fine screening module (5) includes a feed plate (51), a large leaf outlet (52) and a third screen hole (53). When the secondary screening is achieved, the blades, impurities and leaf stems that pass through the third screen hole (53) fall into the feed plate (51) and eventually enter the first fine screening module (4) for tertiary screening. The blades that do not pass through the screen hole fall into the large leaf outlet (52).

4. The high-efficiency grading and screening equipment for tea refining according to claim 3, characterized in that, The first fine screening module (4) includes a first screen hole (41), a second screen hole (42), a second waste outlet (43), and a small leaf outlet (44). When three-stage screening is achieved, the leaves, impurities, and leaf stems that pass through the first screen hole (41) fall into the second waste outlet (43), the leaves that pass through the second screen hole (42) fall into the small leaf outlet (44), and the leaves that do not pass through the first screen hole (41) and the second screen hole (42) fall into the large leaf outlet (52).

5. The high-efficiency grading and screening equipment for tea refining according to claim 1, characterized in that, The air separation module (3) includes a partition (30), a support plate (31), a first air separation plate (32), a second air separation plate (33), a first fan (34), a first air outlet (35), a second fan (36), a sealed duct (37), a second air outlet (38), and a discharge plate (39). The partition (30) includes a first partition, a second partition, and a third partition arranged from high to low. The first partition, the second partition, and the third partition are all fixedly connected to two support plates (31) arranged in front and behind. The first air separation plate (32) and the second air separation plate (33) are both configured to be inclined with the left side higher than the right side. Air holes are opened on the first partition and the third partition. The blower (34) and the second blower (36) are respectively installed at two air holes; the top of the first partition is provided with a second air outlet (38), the outlet of the second air outlet (38) is set towards the second partition, the top of the second partition is provided with a first air outlet (35), the outlet of the first air outlet (35) is set towards the first partition; a sealing duct (37) is provided on the left side of the first partition to guide the airflow at the second blower (36) to the second air outlet (38); two feeding plates (39) are provided, located above the second air outlet (38), and the two feeding plates (39) are set in a funnel shape and inclined; the right end face of the second air separator (33) is located above the outlet of the first air outlet (35).

6. The high-efficiency grading and screening equipment for tea refining according to claim 5, characterized in that, The top of the second partition and the top of the third partition are both fixedly connected to the first air separator (32). The second air separator (33) is located between the first partition and the second partition, and the first partition and the second air separator (33) are fixedly connected.

7. The high-efficiency grading and screening equipment for tea refining according to claim 1, characterized in that, The drive assembly (6) includes a base (60), a slider (61), a crossbar (62), a damping element (63), a bracket (64), and a vibrator (65). The base (60) has two slide rails on its top, and each slide rail has a slider (61). There are several rollers between the slider (61) and the slide rail. Several crossbars (62) are fixedly connected between two sliders (61). Several damping elements (63) are fixedly connected to the top of each crossbar (62). The top of the damping element (63) is fixedly connected to the bracket (64). The first fine screening module (4) and the second fine screening module (5) are both fixedly connected to the bracket (64). The vibrator (65) is fixedly installed on the base (60), and the output end of the vibrator (65) is fixedly connected to one of the multiple crossbars (62).

8. The high-efficiency grading and screening equipment for tea refining according to claim 5, characterized in that, There is a gap between the first air separator (32) and the second partition, and the first air separator (32) is rotatably connected to the third partition. An angle adjustment module (8) is provided on one side of the first air separator (32) to realize the angle adjustment of the first air separator (32).

9. The high-efficiency grading and screening equipment for tea refining according to claim 8, characterized in that, The angle adjustment module (8) includes a connecting block (81) and an electric cylinder (82). The first air separator plate (32) is fixedly connected to the top of the connecting block (81). The connecting block (81) is triangular prism-shaped. An electric cylinder (82) is provided on one side of the connecting block (81). One end of the electric cylinder (82) is rotatably connected to the support plate (31), and the other end of the electric cylinder (82) is rotatably connected to the connecting block (81).

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