Black tea electrostatic impurity removal pretreatment device and electrostatic impurity removal equipment

Abstract

The black tea electrostatic impurity removal pretreatment device comprises a first side plate, a second side plate and two end plates, the first side plate and the second side plate are oppositely arranged, the two end plates are installed at the two ends of the first side plate and the two ends of the second side plate respectively, and a tea leaf falling channel is defined by the first side plate, the second side plate and the end plates; at least one layer of dispersion structure is arranged in the channel, the dispersion structure is composed of a plurality of dispersion rods arranged at intervals, and the two ends of each dispersion rod are connected with the first side plate and the second side plate correspondingly. The pretreatment device is installed at the feeding end of the vibrating table of the electrostatic impurity removal equipment through the end plate, the pretreatment device vibrates along with the vibrating table, and when tea leaves fall onto the vibrating table, the tea leaves are in a flat state and can be quickly vibrated and scattered, so that the tea leaves cannot be extruded by the first electrostatic roller. The utility model has the characteristics of simple structure, no need of extra power drive and good dispersion effect.

Description

Technical Field

[0001] The utility model relates to the technical field of black tea refining and processing equipment, in particular to a black tea electrostatic impurity removal pretreatment device and electrostatic impurity removal equipment. Background Art

[0002] During the refining process of black tea, it is necessary to remove possible impurities in the tea leaves, such as hair, plastic bag fragments, woven belt fragments, etc., in order to improve the quality of the tea leaves.

[0003] At present, our company uses electrostatic impurity removal equipment such as Figure 4 As shown, the electrostatic impurity removal device 6 is fed by a belt feeder 7. The structure of the electrostatic impurity removal device is that an inclined vibration table is arranged in a frame, and a plurality of electrostatic rollers are installed on the frame and above the vibration table. The tea leaves are vibrated and leveled on the vibration table, and then move downstream by vibration. When the tea leaves pass through the electrostatic rollers, the impurities in the tea leaves are sucked out by the electrostatic rollers, thereby achieving the purpose of impurity removal.

[0004] The vibration table currently vibrates the tea leaves into a thin layer, so that the electrostatic roller can absorb the impurities in the tea leaves. However, when the belt feeder 7 is used for feeding, the tea leaves that fall onto the feeding end of the vibration table will appear in a pile, and the location where the tea leaves fall is close to the first electrostatic roller, and the tea leaves cannot be quickly vibrated and dispersed, so that the first electrostatic roller will squeeze the tea leaves, causing the tea leaves to be squeezed and broken. Therefore, improvements are made on the basis of the existing electrostatic impurity removal equipment.

[0005] After searching, Chinese patent document CN207056799U, published (announced) date: 2018.03.02, discloses a tea electrostatic impurity removal device with a screed roller, a screed roller is provided on the conveyor belt, and the screed roller includes a roller and comb teeth staggered on the surface of the roller, and the comb teeth are perpendicular to the surface of the screed roller. Its characteristic is that the tea leaves are evenly moved by the rotation of the screed roller; its disadvantage is that the electrostatic impurity removal equipment used by our company uses a vibration table to vibrate and flatten the tea leaves, and the gap between the vibration table and the screed roller is fluctuating, and there is a situation where the tea leaves are squeezed by the comb teeth; if the screed roller is installed on the vibration table to vibrate synchronously, it is not convenient to drive the screed roller to rotate. Utility Model Content

[0006] The technical problem to be solved by the utility model is: to solve the problems existing in the above-mentioned background technology, and to provide a black tea electrostatic impurity removal pretreatment device and an electrostatic impurity removal device, so that the tea leaves can be quickly vibrated and dispersed before entering the vibration table, so as not to be squeezed by the first electrostatic roller.

[0007] In order to solve the above technical problems, the technical solution adopted by the utility model is: a black tea electrostatic impurity removal pretreatment device, comprising a first side plate, a second side plate and an end plate, the first side plate and the second side plate are arranged opposite to each other, and the two end plates are respectively installed at the two ends of the first side plate and the second side plate, the first side plate, the second side plate and the end plate together form a channel for the tea leaves to fall, and at least one layer of dispersion structure is arranged in the channel, the dispersion structure is a plurality of dispersion rods arranged at intervals, and the two ends of the dispersion rods are respectively connected to the first side plate and the second side plate.

[0008] The second side plate is an inclined plate, and the first side plate and the second side plate form a channel which is wide at the top and narrow at the bottom.

[0009] Two layers of dispersion structures are arranged in the channel, and the dispersion rods in the two layers of dispersion structures are arranged in a staggered manner.

[0010] The lower end of the end plate is provided with a mounting section extending outward, and a mounting hole is provided on the mounting section.

[0011] A movable plate is installed at the lower end of the second side plate through a hinge, and the opening of the movable plate is adjusted through an adjusting mechanism.

[0012] A fixed plate is installed on the inner side of the end plate, a threaded hole is provided on the fixed plate, and a connecting hole is provided on the movable plate at a position corresponding to the threaded hole on the fixed plate;

[0013] The adjustment mechanism includes an adjusting rod and a spring. A limiting portion is provided at one end of the adjusting rod, and a screwing portion is provided at the other end. The adjusting rod is movably inserted into the connecting hole of the movable plate, and the adjusting rod is threadedly matched and screwed with the threaded hole on the fixed plate. The limiting portion is located on one side of the movable plate, and the spring is installed on the adjusting rod. Two ends of the spring respectively abut against the movable plate and the fixed plate. A locking nut is screwed on the side of the adjusting rod on the fixed plate away from the spring.

[0014] An electrostatic impurity removal device comprises an electrostatic impurity removal device body, wherein the black tea electrostatic impurity removal pretreatment device is installed on the feeding end of the vibration table of the electrostatic impurity removal device body.

[0015] The utility model has the following beneficial effects:

[0016] 1. The utility model is installed on the feeding end of the vibration table of the electrostatic impurity removal equipment through the end plate, and the pretreatment device follows the vibration of the vibration table. At the same time, a dispersion rod is installed in the pretreatment device, so that the tea leaves are scattered and fall to the feeding end of the vibration table. When the tea leaves fall on the vibration table, they are in a relatively flat state, so that the tea leaves can be quickly dispersed by vibration, so that they will not be squeezed by the first electrostatic roller. The device has the characteristics of simple structure, no need for additional power drive and good dispersion effect.

[0017] 2. A movable plate is installed at the lower end of the second side plate of the utility model through a hinge, and the opening of the movable plate is adjusted by an adjusting mechanism, so that the falling amount of tea leaves can be adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the black tea electrostatic impurity removal pretreatment device of the utility model.

[0020] Figure 2 for Figure 1 Schematic diagram of the AA section structure.

[0021] Figure 3 for Figure 1 Schematic diagram of the BB cross-section structure.

[0022] Figure 4 The figure is a layout diagram of the electrostatic impurity removal equipment body and the belt feeder in the prior art.

[0023] Figure 5 This is a schematic diagram of the location of installing the black tea electrostatic impurity removal pretreatment device on the electrostatic impurity removal equipment body.

[0024] In the figure:

[0025] First side panel 1, second side panel 2, movable panel 21, hinge 22, end panel 3, mounting section 31, mounting hole 32, fixed panel 33, dispersion rod 4, adjustment mechanism 5, adjustment rod 51, limiting portion 52, twisting portion 53, spring 54, locking nut 55, electrostatic impurity removal equipment body 6, vibration table 61, belt feeder 7, black tea electrostatic impurity removal pretreatment device 8. DETAILED DESCRIPTION

[0026] Embodiment 1:

[0027] like Figure 1-3As shown in Figure 5, a black tea electrostatic impurity removal pretreatment device comprises a first side plate 1, a second side plate 2 and an end plate 3. The first side plate 1 and the second side plate 2 are arranged opposite to each other. The two end plates 3 are respectively installed at the two ends of the first side plate 1 and the second side plate 2. The first side plate 1, the second side plate 2 and the end plate 3 enclose a channel for the tea leaves to fall. At least one layer of dispersion structure is arranged in the channel. The dispersion structure is a plurality of dispersion rods 4 arranged at intervals. The two ends of the dispersion rods 4 are respectively connected to the first side plate 1 and the second side plate 2. The pretreatment device is installed to the feeding end of the vibration table of the electrostatic impurity removal equipment through the end plate. The pretreatment device vibrates with the vibration table 61. At the same time, the dispersion rods 4 are installed in the pretreatment device, so that the tea leaves are broken up and fall to the feeding end of the vibration table. When the tea leaves fall on the vibration table, they are in a relatively flat state, so that the tea leaves can be quickly dispersed by vibration, so that they will not be squeezed by the first electrostatic roller. The device has the characteristics of simple structure, no need for additional power drive and good dispersion effect.

[0028] See also Figure 2 The second side plate 2 is an inclined plate, and the first side plate 1 and the second side plate 2 form a channel that is wide at the top and narrow at the bottom. Through the narrow end at the bottom, the amount of tea leaves falling onto the vibration table can be further controlled.

[0029] In a preferred embodiment, see Figure 2 , 3 A two-layer dispersion structure is provided in the channel, and the dispersion rods 4 in the two-layer dispersion structure are arranged in a staggered manner to improve the dispersion effect. Specifically, the dispersion rods 4 are made of 6-8 round steel, and the two ends of the dispersion rods are welded to the first side plate 1 and the second side plate 2.

[0030] See also Figure 1 The lower end of the end plate 3 is provided with an outwardly extending mounting section 31, and the mounting section 31 is provided with a mounting hole 32. The pretreatment device is supported on both sides of the vibration table by the mounting section 31, and the bolts are connected to the vibration table through the mounting holes 32, so that the pretreatment device is easily installed on the vibration table.

[0031] For further information, see Figure 1 , 2 A movable plate 21 is installed at the lower end of the second side plate 2 through a hinge 22. The opening of the movable plate 21 is adjusted by an adjusting mechanism 5, so that the amount of tea leaves falling can be adjusted.

[0032] It should be noted that when adjusting the opening of the movable plate 21, the feeding speed of the belt feeder 7 needs to be adjusted synchronously to prevent the tea leaves from piling up in the pretreatment device.

[0033] In one implementation, see Figure 1 A fixing plate 33 is installed on the inner side of the end plate 3, a threaded hole is provided on the fixing plate 33, and a connecting hole is provided on the movable plate 21 at a position corresponding to the threaded hole on the fixing plate 33;

[0034] See also Figure 2 The adjustment mechanism 5 includes an adjustment rod 51 and a spring 54. A limiting portion 52 is provided at one end of the adjustment rod 51, and a twisting portion 53 is provided at the other end. The adjustment rod 51 is movably inserted into the connection hole on the movable plate 21, and the adjustment rod 51 is threadedly matched and screwed with the threaded hole on the fixed plate 33. The limiting portion 52 is located on one side of the movable plate 21. The spring 54 is installed on the adjustment rod 51. The two ends of the spring 54 are respectively against the movable plate 21 and the fixed plate 33. A locking nut 55 is screwed on the side of the fixed plate 33 away from the spring 54. The opening of the movable plate 21 is adjusted by rotating the twisting portion 53. After adjustment, the locking nut 55 is tightened to fix the adjustment rod 51.

[0035] Specifically, the adjusting rod 51 is a screw rod, the limiting portion 52 is a spherical structure, and the twisting portion 53 is screwed onto the adjusting rod 51 .

[0036] Of course, in addition to the above structure, the adjustment mechanism 5 may also adopt other structures, for example, without setting the fixed plate 33, the adjustment rod 51 passes through the connection hole on the movable plate 21 and is screwed to the first side plate 1, the limit portion 52 is located outside the movable plate 21, and the spring 54 is located between the first side plate 1 and the movable plate 21. By rotating the twisting portion 53, the opening of the movable plate 21 can also be adjusted.

[0037] Embodiment 2:

[0038] See also Figure 5 An electrostatic impurity removal device comprises an electrostatic impurity removal device body 6, and a black tea electrostatic impurity removal pretreatment device is installed at the feeding end of a vibration table 61 of the electrostatic impurity removal device body 6.

[0039] The black tea electrostatic impurity removal pretreatment device can be welded to both sides of the vibration table 61 through the end plate 3. It can also be installed on both sides of the vibration table 61 by bolts through the mounting section 31. The black tea electrostatic impurity removal pretreatment device is located below the discharge port of the belt feeder 7.

[0040] The action process or principle of the utility model is as follows:

[0041] The black tea electrostatic impurity removal pretreatment device is installed to the feeding end of the vibration table 61 of the electrostatic impurity removal equipment through the end plate 3. The pretreatment device vibrates along with the vibration table 61. At the same time, a dispersion rod 4 is installed in the pretreatment device, so that the tea leaves are broken up and dropped to the feeding end of the vibration table. When the tea leaves fall onto the vibration table, they are in a relatively dispersed and flat state, so that the tea leaves can be quickly vibrated and dispersed, and will not be squeezed by the first electrostatic roller.

Claims

1. A black tea electrostatic impurity removal pretreatment device, characterized in that: The tea leaves are provided with a first side plate (1), a second side plate (2) and an end plate (3), wherein the first side plate (1) and the second side plate (2) are arranged opposite to each other, and the two end plates (3) are respectively mounted at the two ends of the first side plate (1) and the second side plate (2), and the first side plate (1), the second side plate (2) and the end plate (3) together form a channel for tea leaves to fall, wherein at least one layer of dispersion structure is provided in the channel, wherein the dispersion structure is a plurality of dispersion rods (4) arranged at intervals, and the two ends of the dispersion rods (4) are respectively connected to the first side plate (1) and the second side plate (2).

2. The black tea electrostatic impurity removal pretreatment device according to claim 1, characterized in that: The second side plate (2) is an inclined plate, and the first side plate (1) and the second side plate (2) form a channel which is wide at the top and narrow at the bottom.

3. The black tea electrostatic impurity removal pretreatment device according to claim 1 or 2, characterized in that: Two layers of dispersion structures are arranged in the channel, and the dispersion rods (4) in the two layers of dispersion structures are arranged in a staggered manner.

4. The black tea electrostatic impurity removal pretreatment device according to claim 1 or 2, characterized in that: The lower end of the end plate (3) is provided with a mounting section (31) extending outward, and a mounting hole (32) is provided on the mounting section (31).

5. The black tea electrostatic impurity removal pretreatment device according to claim 1 or 2, characterized in that: A movable plate (21) is mounted on the lower end of the second side plate (2) via a hinge (22), and the opening degree of the movable plate (21) is adjusted via an adjustment mechanism (5).

6. The black tea electrostatic impurity removal pretreatment device according to claim 5, characterized in that: A fixing plate (33) is installed on the inner side of the end plate (3), a threaded hole is provided on the fixing plate (33), and a connecting hole is provided on the movable plate (21) at a position corresponding to the threaded hole on the fixing plate (33); The adjustment mechanism (5) comprises an adjustment rod (51) and a spring (54). A limiting portion (52) is provided at one end of the adjustment rod (51), and a screwing portion (53) is provided at the other end. The adjustment rod (51) is movably inserted into a connecting hole on the movable plate (21), and the adjustment rod (51) is screwed with a threaded hole on the fixed plate (33). The limiting portion (52) is located on one side of the movable plate (21). The spring (54) is mounted on the adjustment rod (51). Two ends of the spring (54) respectively abut against the movable plate (21) and the fixed plate (33). A locking nut (55) is screwed on the side of the fixed plate (33) away from the spring (54).

7. An electrostatic impurity removal device, comprising an electrostatic impurity removal device body (6), characterized in that: The black tea electrostatic impurity removal pretreatment device according to any one of claims 1 to 6 is installed at the feeding end of the vibration table (61) of the electrostatic impurity removal equipment body (6).

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