Grain screening equipment capable of removing dust

Abstract

The utility model relates to the technical field of screening equipment, in particular to grain screening equipment capable of removing dust, which comprises a mounting frame and a screening box, a cyclone separator and a feed hopper are mounted on the mounting frame, an air inlet end of the cyclone separator is connected with a first dust removal pipe and a second dust removal pipe, the first dust removal pipe is connected with the feed hopper, and the second dust removal pipe is connected with the screening box; the bottom of the feeding hopper is connected with a feeding pipe through a corrugated pipe. The bottom of the feeding pipe is connected with a positioning box arranged at an opening of the feeding end of the screening box. Grain is input from the feeding hopper, can be input into the screening box to be screened through the corrugated pipe, the feeding pipe and the positioning box and is screened on the first screening plate and the second screening plate, the vibrating ball further vibrates, the probability that the screening plate holes are blocked by rice and brown rice outside the rice is reduced, and the cleaning efficiency of small broken brown rice outside the rice and other screen underflow is improved. During screening, dust can enter the cyclone separator through the first dust removal pipe and the second dust removal pipe to be subjected to dust-gas separation.

Description

TECHNICAL FIELD

[0001] The utility model relates to a screening equipment technical field, concretely is a kind of grain screening equipment of dust removal. BACKGROUND

[0002] Grain screening equipment is an important tool for screening impurities and broken particles in grains. There are more unhusked rice outside the grains formed by current rice drying and transfer, and there are cleaning difficulties during acquisition and storage. During the acquisition and storage of rice, efficient cleaning and arrangement can improve the arrangement efficiency during storage. Currently, rice varieties and grain types are diverse, and some grain types of rice and unhusked rice outside the grains are easily blocked in the screen plate holes of the vibration cleaning equipment, resulting in poor cleaning effect of the screened material such as rice and unhusked rice outside the grains, low storage efficiency and low quality standard rate. Some screening equipment is provided with a screen plate for easy disassembly to reduce the impact of blockage on screening.

[0003] For example, in the existing patent No. CN213996659U, a grain vibrating screen is disclosed, which includes a cover, a buckle, a feed inlet, a screen device, a spring rod, a frame, a vibrating motor, a ventilation port, a box, a snap ring and a blower. The cover is connected to the buckle by welding, the feed inlet is connected to the cover by nesting, the screen device is fixedly connected inside the box, the spring rod is fixedly connected to the box, the frame is connected to the spring rod by welding, the vibrating motor is fixedly connected below the box, and the outer wall of the box is provided with a ventilation port. The cover and the box are closed by the buckle and the snap ring, and the grain is put into the feed inlet for screening.

[0004] The above-mentioned vibrating screen can perform screening operation and ventilation and dust removal at the same time, but the screening effect of the screen device still needs to be improved, and the screen device is complicated to disassemble and assemble, which affects the subsequent use. In view of the above problems, a grain screening equipment with dust removal function is proposed. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a kind of grain screening equipment with dust removal function to solve the problems raised in the above background.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A kind of grain screening equipment with dust removal function, including mounting bracket and screening box, the mounting bracket is installed cyclone separator and feed hopper, the cyclone separator air inlet end is connected with first dust removal pipe and second dust removal pipe, the first dust removal pipe is connected with feed hopper, and the second dust removal pipe is connected with screening box;The bottom of the feed hopper is connected to the feed pipe through the corrugated pipe, and the bottom of the feed pipe is connected to the positioning box arranged at the opening of the feed end of the screening box;

[0008] The screening box is internally provided with a first sieve plate and a second sieve plate, the inner wall of the screening box is provided with a first mounting groove for slidingly mounting the first sieve plate and a second mounting groove for slidingly mounting the second sieve plate, the positioning box is internally connected with a clamping plate which is in butt joint with the first sieve plate, the two sides of the positioning box are slidingly connected with limiting plates, the side close to each other of the two groups of limiting plates is connected with a limiting block, the outer wall of the screening box is provided with a limiting hole matched with the limiting block, the positioning box is internally provided with an adjusting mechanism for adjusting the sliding position of the limiting plate;

[0009] The second sieve plate comprises two groups of sieve nets and a support frame connected between the two groups of sieve nets, and a plurality of vibration balls are arranged between the two groups of sieve nets.

[0010] In an alternative, the adjusting mechanism comprises a gear and two groups of oppositely arranged racks, the gear is engaged between the two groups of racks, the gear is rotatably mounted in the positioning box, the racks are slidingly mounted in the positioning box, one end of the limiting plate is slidingly arranged in a receiving groove formed in the positioning box, one end of the rack is connected with the limiting plate, and a limiting piece for adjusting the rotation of the gear and limiting is mounted on the positioning box.

[0011] In an alternative, the limiting piece comprises a rotating disc, the shaft end of the rotating disc is connected with the shaft end of the gear, a positioning bolt is threadedly connected at the eccentric position of the rotating disc, and the outer wall of the positioning box is provided with a threaded hole matched with the positioning bolt in a threaded manner.

[0012] In an alternative, one side of the clamping plate is provided with a groove in butt joint with the first sieve plate, the top cavity of the clamping plate is communicated with the inner cavity of the feeding pipe, and the feeding pipe is connected with the bottom end of the corrugated pipe through bolts.

[0013] In an alternative, three groups of discharge ports are arranged on the side of the screening box away from the positioning box.

[0014] In an alternative, two groups of springs are connected to the outer walls of the two sides of the screening box, the springs are connected with mounting frames, and a vibration motor is mounted on one side of the outer wall of the screening box.

[0015] In an alternative, a moving wheel is mounted on the mounting frame.

[0016] Compared with the prior art, the present application has the following beneficial effects:

[0017] In the present application, the grains are input from the feeding hopper, and then input into the screening box through the corrugated pipe, the feeding pipe and the positioning box for screening on the first sieve plate and the second sieve plate, and the vibration balls further vibrate to reduce the probability of blocking the sieve plate holes by the rice and the rough rice outside the grains, improve the cleaning efficiency of the screened materials such as small fragments of the rice and the rough rice outside the grains, inject air into the screening box during the screening to assist the screening, and separate the dust and gas in the cyclone separator through the first dust removal pipe and the second dust removal pipe during the screening.

[0018] The first sieve plate and the second sieve plate in the utility model are convenient to disassemble from the screening box, when it is needed to clean or replace the first sieve plate or the second sieve plate, the connection of the bellows and the feeding pipe is released, the two sets of limiting plates are adjusted to be far away, the positioning box can be taken out, the first sieve plate or the second sieve plate is conveniently taken out by sliding, and the operation is convenient. BRIEF DESCRIPTION OF DRAWINGS

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

[0020] Figure 2 It is a structural schematic view of the screening box in the utility model.

[0021] Figure 3 It is a structural schematic view of the positioning box in the utility model.

[0022] Figure 4 It is a partial split structural schematic view of the utility model.

[0023] Figure 5 It is a partial split structural schematic view of the positioning box in the utility model.

[0024] Figure 6 It is a partial split structural schematic view of the second sieve plate in the utility model.

[0025] In the drawing: 11, mounting frame; 12, screening box; 13, cyclone separator; 14, feeding hopper; 15, first dust removal pipe; 16, second dust removal pipe; 17, moving wheel; 18, bellows; 19, feeding pipe; 20, positioning box; 21, rotating disc; 22, positioning bolt; 23, limiting plate; 24, limiting block; 25, clamping plate; 26, first sieve plate; 27, first mounting groove; 28, second mounting groove; 29, second sieve plate; 30, limiting hole; 31, rack; 32, gear; 33, screen; 34, support frame; 35, vibrating ball; 36, vibrating motor; 37, spring. DETAILED DESCRIPTION

[0026] In the utility model, unless another definite provision and limitation, the terms "mounting", "connecting", "connecting", "fixing" and the like terms should be understood broadly, for example, can be fixed connection, also can be detachable connection, or be integrated; can be mechanical connection, also can be electrical connection; can be directly connected, also can be indirectly connected through intermediate medium, can be the communication of two elements or the interaction of two elements, unless another definite limitation. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0027] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0028] Please refer to Figures 1-6 In the embodiment, the grain screening device capable of removing dust includes a mounting frame 11 and a screening box 12, a cyclone separator 13 and a feeding hopper 14 are mounted on the mounting frame 11, a first dust removal pipe 15 and a second dust removal pipe 16 are connected to the air inlet end of the cyclone separator 13, the first dust removal pipe 15 is connected to the feeding hopper 14, and the second dust removal pipe 16 is connected to the screening box 12; a corrugated pipe 18 is connected to a feeding pipe 19 at the bottom of the feeding hopper 14, and the feeding pipe 19 is connected to a positioning box 20 arranged at the feeding end opening of the screening box 12;

[0029] The screening box 12 is provided with a first sieve plate 26 and a second sieve plate 29, the inner wall of the screening box 12 is provided with a first mounting groove 27 for slidingly mounting the first sieve plate 26 and a second mounting groove 28 for slidingly mounting the second sieve plate 29, the positioning box 20 is connected with a clamping plate 25 that is in abutment with the first sieve plate 26, the positioning box 20 is slidingly connected with a limiting plate 23 on both sides, the limiting plate 23 is connected with a limiting block 24 on the side close to the other limiting plate 23, the outer wall of the screening box 12 is provided with a limiting hole 30 matched with the limiting block 24, and the positioning box 20 is provided with an adjusting mechanism for adjusting the sliding position of the limiting plate 23;

[0030] The second sieve plate 29 includes two groups of sieve nets 33 and a support frame 34 connected between the two groups of sieve nets 33, and a plurality of vibration balls 35 are arranged between the two groups of sieve nets 33;

[0031] According to the above scheme, the grains are input from the feeding hopper 14, can be input into the screening box 12 through the corrugated pipe 18, the feeding pipe 19 and the positioning box 20, and are screened on the first sieve plate 26 and the second sieve plate 29, the vibration balls 35 further vibrate to reduce the probability of blocking the sieve plate holes by the rice and the rough rice outside the paddy, air can be injected into the screening box 12 during the screening to assist the screening, and the dust can enter the cyclone separator 13 through the first dust removal pipe 15 and the second dust removal pipe 16 for dust-air separation;

[0032] When the first sieve plate 26 or the second sieve plate 29 needs to be cleaned or replaced, the connection between the corrugated pipe 18 and the feeding pipe 19 is released, the two limiting plates 23 are adjusted to be away from each other, the positioning box 20 can be taken out, and the first sieve plate 26 or the second sieve plate 29 can be conveniently taken out by sliding.

[0033] For example Figure 2And Figure 5 As shown in the figure, the adjusting mechanism comprises a gear 32 and two sets of oppositely arranged racks 31, the gear 32 is engaged between the two sets of racks 31, the gear 32 is rotatably installed in the positioning box 20, the rack 31 is slidably installed in the positioning box 20, one end of the limiting plate 23 is slidably arranged in the receiving groove formed in the positioning box 20, one end of the rack 31 is connected to the limiting plate 23, and a limiting piece is installed on the positioning box 20 for adjusting the rotation of the gear 32 and limiting the rotation of the gear 32.

[0034] The gear 32 rotates to drive the rack 31 to move horizontally, the two sets of racks 31 move relative to each other, thereby driving the two sets of limiting plates 23 to move relative to each other, that is, the two sets of limiting plates 23 move close to each other, the limiting block 24 is placed into the limiting hole 30, and the positioning box 20 is stably installed on one side of the screening box 12, and vice versa, the two sets of limiting plates 23 move away from each other, thereby facilitating the disassembly of the positioning box 20.

[0035] Further, the limiting piece comprises a rotating disc 21, the shaft end of the rotating disc 21 is connected to the shaft end of the gear 32, the rotating disc 21 is threadedly connected to the positioning bolt 22 at the eccentric position, and the outer wall of the positioning box 20 is provided with a threaded hole matched with the positioning bolt 22.

[0036] Rotating the rotating disc 21 can adjust the rotation of the gear 32, and rotating the positioning bolt 22 into the corresponding threaded hole can limit the rotation of the rotating disc 21, thereby limiting the rotation of the gear 32.

[0037] As shown in the figure, Figure 2 And Figure 3 As shown in the figure, one side of the clamping plate 25 is provided with a groove matched with the first sieve plate 26, the top cavity of the clamping plate 25 is communicated with the inner cavity of the feeding pipe 19, and the feeding pipe 19 is connected to the bottom end of the corrugated pipe 18 through a bolt; when the positioning box 20 is installed, the groove on one side of the clamping plate 25 is matched with the first sieve plate 26, and the grains entering the positioning box 20 are sent to the first sieve plate 26 from the top of the clamping plate 25 for screening.

[0038] Further, the screening box 12 is provided with three discharge ports away from the positioning box 20; the discharge ports are respectively used for the top of the first sieve plate 26, the top of the second sieve plate 29 and the bottom of the second sieve plate 29.

[0039] As shown in the figure, Figure 2 As shown in the figure, the outer walls on both sides of the screening box 12 are connected to two sets of springs 37, the springs 37 are connected to the mounting frame 11, and one side of the outer wall of the screening box 12 is provided with a vibration motor 36; when the vibration motor 36 works, the screening box 12 can vibrate for screening.

[0040] As shown in the figure, Figure 1 As shown in the figure, the mounting frame 11 is provided with a moving wheel 17; the moving wheel 17 facilitates the movement of the equipment, and in actual use, the moving wheel 17 can be installed according to the needs.

[0041] The working principle of the utility model is: the grain is input from the feeding hopper 14, can be input to the screening box 12 through the corrugated pipe 18, the feeding pipe 19 and the positioning box 20, is screened on the first sieve plate 26 and the second sieve plate 29, the vibration ball 35 is further vibrated, reduces the probability that the rice and the rough rice outside the valley block the sieve plate hole, air can be injected in the screening box 12 in screening, auxiliary screening, dust in screening can pass through the first dust removal pipe 15 and the second dust removal pipe 16 into the cyclone separator 13 and carries out dust gas separation;

[0042] When the first sieve plate 26 or the second sieve plate 29 needs to be cleaned or replaced, the connection of the corrugated pipe 18 and the feeding pipe 19 is released, the two sets of limiting plates 23 are adjusted to be far away, the positioning box 20 can be taken out, the first sieve plate 26 or the second sieve plate 29 is conveniently taken out by sliding.

[0043] The above is only the preferred embodiment of the utility model, and is not other forms of the limitation of the utility model, any skilled person in the art can change or modify the equivalent embodiment of equivalent change applied in other fields by the disclosed technical content, but any simple modification, equivalent change and modification made according to the technical essence of the utility model to the above embodiment still belongs to the protection scope of the utility model technical scheme.

Claims

1. A dustable grain screening apparatus comprising a mounting frame (11) and a screening box (12), characterised in that: A cyclone separator (13) and a feeding hopper (14) are mounted on the mounting frame (11); A first dust removal pipe (15) and a second dust removal pipe (16) are connected to the air inlet end of the cyclone separator (13), the first dust removal pipe (15) is connected to the feeding hopper (14), and the second dust removal pipe (16) is connected to the screening box (12); a corrugated pipe (18) is connected to the bottom of the feeding hopper (14) and connected to a feeding pipe (19), and the bottom of the feeding pipe (19) is connected to a positioning box (20) arranged at the feeding end opening of the screening box (12); The screening box (12) is provided with a first sieve plate (26) and a second sieve plate (29), the inner wall of the screening box (12) is provided with a first mounting groove (27) for slidingly mounting the first sieve plate (26) and a second mounting groove (28) for slidingly mounting the second sieve plate (29), the positioning box (20) is connected with a clamping plate (25) that is in abutment with the first sieve plate (26), both sides of the positioning box (20) are slidingly connected with limiting plates (23), both sides of the two sets of limiting plates (23) are connected with limiting blocks (24), the outer wall of the screening box (12) is provided with limiting holes (30) matched with the limiting blocks (24), and the positioning box (20) is provided with an adjusting mechanism for adjusting the sliding position of the limiting plates (23); The second sieve plate (29) comprises two sets of screen meshes (33) and a support frame (34) connected between the two sets of screen meshes (33), and a plurality of vibration balls (35) are arranged between the two sets of screen meshes (33).

2. A dust-removable grain screening apparatus according to claim 1, characterized in that: The adjusting mechanism comprises a gear (32) and two sets of oppositely arranged racks (31), the gear (32) is engaged between the two sets of racks (31), the gear (32) is rotatably installed in the positioning box (20), the racks (31) are slidingly installed in the positioning box (20), one end of the limiting plate (23) is slidingly arranged in a receiving groove formed in the positioning box (20), one end of the rack (31) is connected with the limiting plate (23), and the positioning box (20) is provided with a limiting piece for adjusting the rotation of the gear (32) and limiting.

3. A dust-removable grain screening apparatus according to claim 2, characterized in that: The limiting piece comprises a rotating disc (21), one end of the rotating disc (21) is connected with the gear (32), a positioning bolt (22) is threadedly connected to the eccentric position of the rotating disc (21), and the outer wall of the positioning box (20) is provided with a threaded hole matched with the positioning bolt (22).

4. A dust-free grain screening apparatus according to claim 1, characterized in that: One side of the clamping plate (25) is provided with a groove in abutment with the first sieve plate (26), the top cavity of the clamping plate (25) is in communication with the inner cavity of the feeding pipe (19), and the feeding pipe (19) is connected to the bottom end of the corrugated pipe (18) through bolts.

5. A dust-free grain screening apparatus according to claim 1, characterized in that: Three groups of discharge ports are arranged on the side of the screening box (12) away from the positioning box (20).

6. A dust-free grain screening apparatus according to claim 1, characterized in that: Two sets of springs (37) are connected to the outer walls of both sides of the screening box (12), the springs (37) are connected to the mounting frame (11), and a vibration motor (36) is mounted on one side of the outer wall of the screening box (12).

7. A dust-free grain screening apparatus according to claim 1, characterized in that: A moving wheel (17) is mounted on the mounting frame (11).

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