Dust removal screening machine convenient to clean

Abstract

The utility model relates to the technical field of dust removal screening machines, in particular to a dust removal screening machine convenient to clean, which comprises a screening machine body, an air suction dust removal pipe is fixedly connected to the top of the screening machine body, a feeding pipe is fixedly connected to the left side of the screening machine body, and a groove is formed in the side face of the inner wall of the screening machine body. The inner wall of the groove is fixedly connected with a first spring telescopic rod, one end of the first spring telescopic rod is fixedly connected with a lifting screen plate, and the top, close to the inner wall of the screening machine body, of the screening machine body is fixedly connected with an upper material gathering groove plate. And the discharging plate is pushed out under the control of the driving end to discharge and collect the remaining large particles, and the effects of gravel multi-layer crushing and screening and subsequent discharging and collecting of remaining large particle impurities of the dust removal screening machine are guaranteed.

Description

Technical Field

[0001] The utility model relates to a dust removal and screening machine which is easy to clean and belongs to the technical field of dust removal and screening machines. Background Art

[0002] When preparing concrete, the raw materials of concrete are usually screened. The raw materials of concrete are usually sand and gravel. Sand and gravel are screened out according to their particle diameters and used for different purposes. After a large amount of loose materials of different particle sizes and mixed coarse and fine particles enter the screen surface, only a part of the particles are in contact with the screen surface. Due to the vibration of the screen box, the material layer on the screen is loosened, so that the gaps that already exist between large particles are further expanded, and small particles take the opportunity to pass through the gaps and transfer to the lower layer or the conveyor. Since the gaps between small particles are small, large particles cannot pass through, so the originally disorderly arranged particle group is separated, that is, they are layered according to the particle size, forming an arrangement rule in which small particles are at the bottom and coarse particles are at the top. The fine particles that reach the screen surface and are smaller than the sieve holes pass through the screen, and finally the coarse and fine particles are separated, completing the screening process;

[0003] For example, a screening machine convenient for dust removal with patent publication number CN202121186139.1 includes a screening frame, a screening plate is arranged on the screening frame, a guide cover for dust collection is arranged above the screening plate, a plurality of vertically arranged guide rods are welded to the lower side of the guide cover, the screening plate is fixedly connected to a plurality of fixed blocks under the guide cover, the fixed blocks are sleeved on the guide rods and slide relatively along the length direction of the guide rods, and an adjusting member is arranged on the guide cover, and the adjusting member is used to adjust the distance between the guide cover and the screening plate;

[0004] Since the above-mentioned screening machine performs screening of materials such as sand, gravel, concrete and other materials with internal structures, it is inconvenient to screen large and fine particles in materials such as sand, gravel, concrete and other materials, and affects the subsequent collection operation of separating sand, gravel and concrete, which has brought certain adverse effects on actual use and therefore needs to be improved. Utility Model Content

[0005] The purpose of the utility model is to provide a dust removal and screening machine which is easy to clean. The utility model performs multi-layer screening of materials such as sand and gravel inside the screening machine through an internal sealed environment, performs screening operations of large particles and small particles, and discharges and collects the remaining large particles by pushing out the discharge plate under the control of the driving end, thereby ensuring the multi-layer crushing and screening of sand and gravel of the dust removal and screening machine and the subsequent discharge and collection of remaining large particle impurities, so as to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A dust removal screening machine that is easy to clean, comprising a screening machine body, a suction dust removal pipe is fixedly connected to the top of the screening machine body, a feed pipe is fixedly connected to the left side of the screening machine body, a groove is opened on the side of the inner wall of the screening machine body, a spring telescopic rod is fixedly connected to the inner wall of the groove, a lifting screen plate is fixedly connected to one end of the spring telescopic rod, an upper material gathering trough plate is fixedly connected to the top of the inner wall of the screening machine body, and a crushing machine with a driving end is fixedly installed on the inner wall of the screening machine body wheel, a knocking frame is connected to the bottom of the screening machine body near its inner wall, an electric cylinder is fixedly installed on the rear side of the screening machine body, the output end of the electric cylinder is fixedly connected to a discharge plate, the bottom of the screening machine body is fixedly connected to a lower material gathering trough plate, the bottom of the screening machine body is fixedly connected to a discharge pipe, the front side of the screening machine body is fixedly connected to a sealed switch door, the surface of the front side of the screening machine body is fixedly connected to a debris receiving frame, and the debris receiving frame is located directly below the sealed switch door.

[0008] Furthermore, the bottom of the lifting screen plate is a second screen plate, and a guide vertical plate is fixedly connected to the top of the second screen plate near its side, and the side of the guide vertical plate is fixedly connected to the first screen plate.

[0009] Furthermore, a dust shield is fixedly connected to the bottom of the second screen plate, and a side surface of the dust shield is located at a side surface of the groove.

[0010] Furthermore, the number of the grinding wheels is at least two, and the driving ends of the at least two grinding wheels are different, and the grinding wheels are located directly below the upper material collecting trough plate.

[0011] Furthermore, the bottom of the knocking frame is a fixed plate, the top of the fixed plate is fixedly connected with a spring telescopic rod 2, the top of the spring telescopic rod 2 is fixedly connected with a knocking vibration plate, the interior of the fixed plate is connected with a rotating disk through a driving end, the bottom of the rotating disk is fixedly connected with a pushing plate, and a stretching sealing sleeve is fixedly connected between the lower surface of the knocking vibration plate and the upper surface of the fixed plate.

[0012] Furthermore, the main body of the ejection and discharge plate is a smooth inclined plate, a toggle brush plate is fixedly connected to the bottom of the smooth inclined plate, and the ejection and discharge plate is located at the rear side of the screening machine body.

[0013] The beneficial effects of the utility model are:

[0014] The sieve plate is then swung back and forth to move along the chute so that the crushed sand and gravel particles can be crushed to the sieve plate, thereby allowing the crushed sand and gravel particles to fall to the chute and be crushed to the sieve plate.

[0015] In the utility model, if it is necessary to clean large particles of sand and gravel and other impurities in materials such as sand and gravel, the knocking vibration plate can be used to support the lifting screen plate upward and abut against the pushing and discharging plate. The operation of the electric cylinder can drive the pushing and discharging plate to move, and the large particles of sand and gravel and other materials are scraped and pushed out through the smooth inclined plate on the pushing and discharging plate. In addition, a toggle brush plate is added to push out the large particles of sand and gravel and other materials that have not been scraped off the first and second screen plates. The opened sealed switch door can leak out the interior of the screening machine body, and the pushed out large particles of sand and gravel and other materials will fall into the debris receiving frame, thereby ensuring the discharge and collection effect of the remaining large particles of impurities in sand and gravel of the dust removal screening machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the specific embodiments of the present invention and do not constitute a limitation to the present invention.

[0017] Figure 1 This is a schematic diagram of the overall structure of a dust removal and screening machine that is easy to clean in the utility model;

[0018] Figure 2 It is a front cross-sectional view of a dust removal and screening machine that is easy to clean according to the utility model;

[0019] Figure 3 It is a side view of a discharge plate pushed out of a dust removal screening machine that is easy to clean in the utility model;

[0020] Figure 4 This is an enlarged view of point A of a dust removal and screening machine that is easy to clean in the utility model;

[0021] Numbers in the figure: 1. Screening machine body; 2. Air suction and dust removal pipe; 3. Feed pipe; 4. Spring telescopic rod one; 5. Lifting screen plate; 6. Upper material collection trough plate; 7. Crushing wheel; 8. Knocking frame; 9. Electric cylinder; 10. Push-out discharge plate; 11. Lower material collection trough plate; 12. Discharge pipe; 13. Sealed switch door; 14. Debris receiving frame; 15. Second screen plate; 16. Guide vertical plate; 17. First screen plate; 18. Dust shield; 19. Fixed plate; 20. Spring telescopic rod two; 21. Knocking vibration plate; 22. Rotating disk; 23. Pushing plate; 24. Stretch sealing sleeve; 25. Move brush plate. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example 1 Please refer to Figure 1-Figure 4 The utility model provides a technical solution: a dust removal screening machine that is easy to clean, comprising a screening machine body 1, a suction dust removal pipe 2 is fixedly connected to the top of the screening machine body 1, a feed pipe 3 is fixedly connected to the left side of the screening machine body 1, a groove is opened on the side of the inner wall of the screening machine body 1, a spring telescopic rod 4 is fixedly connected to the inner wall of the groove, a lifting screen plate 5 is fixedly connected to one end of the spring telescopic rod 4, an upper material collecting trough plate 6 is fixedly connected to the top of the inner wall of the screening machine body 1, and a driving end is fixedly installed on the inner wall of the screening machine body 1 A crushing wheel 7, a knocking frame 8 is connected to the bottom of the screening machine body 1 near its inner wall, an electric cylinder 9 is fixedly installed on the rear side of the screening machine body 1, and a discharge plate 10 is fixedly connected to the output end of the electric cylinder 9, a lower material collecting trough plate 11 is fixedly connected to the bottom of the screening machine body 1, a discharge pipe 12 is fixedly connected to the bottom of the screening machine body 1, a sealed switch door 13 is fixedly connected to the front side of the screening machine body 1, and a debris receiving frame 14 is fixedly connected to the surface of the front side of the screening machine body 1, and the debris receiving frame 14 is located directly below the sealed switch door 13.

[0024] Specifically, Figure 1-Figure 4As shown, the bottom of the lifting screen plate 5 is the second screen plate 15, and the second screen plate 15 is fixedly connected to the top near the side thereof with a guide vertical plate 16, and the side of the guide vertical plate 16 is fixedly connected to the first screen plate 17. The bottom of the second screen plate 15 is fixedly connected to a dust shield 18, and the side of the dust shield 18 is located at the side of the groove. The first screen plate 17 and the second screen plate 15 can perform screening processing of materials such as sand and gravel twice in succession, and the dust shield 18 can protect the spring telescopic rod 4 inside the groove.

[0025] Specifically, Figure 1-Figure 4 As shown, there are at least two grinding wheels 7, and the driving ends of the at least two grinding wheels 7 are different. The grinding wheels 7 are located directly below the upper material collecting trough plate 6. Different grinding wheels 7 rotate in different directions to perform directional crushing of materials such as sand and gravel, which affects the subsequent screening effect of large pieces of sand and gravel.

[0026] Example 2 Please refer to Figure 1-Figure 4 The difference between this embodiment and embodiment 1 is that the bottom of the knocking frame 8 is a fixed plate 19, and the top of the fixed plate 19 is fixedly connected with a spring telescopic rod 20, and the top of the spring telescopic rod 20 is fixedly connected with a knocking vibration plate 21. The interior of the fixed plate 19 is connected with a rotating disk 22 through a driving end, and the bottom of the rotating disk 22 is fixedly connected with a pushing plate 23. A stretching sealing sleeve 24 is fixedly connected between the lower surface of the knocking vibration plate 21 and the upper surface of the fixed plate 19. The driving end on the rotating disk 22 can control it to rotate, and the rotation of the rotating disk 22 can drive the pushing plate 23 to rotate. Under the elastic expansion and contraction effect of the spring telescopic rod 20, the knocking vibration plate 21 is lifted up to slide up and down, so that the knocking vibration plate 21 can be repeatedly lifted and knocked on the bottom of the entire lifting screen plate 5, so as to screen and discharge the sand and gravel inside the lifting screen plate 5, and the stretching sealing sleeve 24 is added to protect the inside of the knocking frame 8.

[0027] Furthermore, the main body of the ejection discharge plate 10 is a smooth inclined plate, the bottom of which is fixedly connected with a toggle brush plate 25, and the ejection discharge plate 10 is located at the rear side of the screening machine body 1. The operation of the electric cylinder 9 can drive the ejection discharge plate 10 to move, and large particles of sand and gravel and other materials are scraped and pushed out through the smooth inclined plate on the ejection discharge plate. The addition of the toggle brush plate 25 can push out large particles of sand and gravel and other materials that have not been scraped off the first screen plate 17 and the second screen plate 15.

[0028] The working principle of the utility model is as follows: when in use, the staff can use the feeding pipe 3 on the screening machine body 1 to inject materials, and the sand and gravel and other materials fall onto the inner wall of the upper gathering trough plate 6, and are guided downward on the inclined sliding surface of the upper gathering trough plate 6, so that the sand and gravel and other materials fall to the grinding wheel 7 for crushing. Different grinding wheels 7 rotate in different directions to carry out directional crushing of sand and gravel and other materials, which affects the subsequent screening effect of large pieces of sand and gravel and other materials. At the same time, the driving end of the rotating disk 22 can control its rotation. The rotation of the rotating disk 22 can drive the pushing plate 23 to rotate. Under the elastic expansion effect of the spring telescopic rod 20, the knocking vibration plate 21 is lifted up to slide up and down, so that the knocking vibration plate 21 can be repeatedly lifted and knocked on the bottom of the entire lifting screen plate 5. The first screen plate 17 and the second screen plate 15 can carry out the screening of sand and gravel and other materials twice in succession. Because the spring telescopic rod 14 on the side of the lifting screen plate 5 in the groove can support and elastically lift, the sand and gravel after screening The fine sand after screening will fall into the interior of the lower aggregate trough plate 11, and will be discharged later in the interior of the guide discharge pipe 12, while the large particles of sand and gravel will be retained on the first sieve plate 17 and the second sieve plate 15. If it is necessary to clean the large particles of sand and gravel and other impurities in the sand and gravel materials, the knocking vibration plate 21 can be used to support the lifting screen plate 5 upward against the discharge plate 10, and the operation of the electric cylinder 9 can drive the discharge plate 10 to move, and the smooth inclined plate on the discharge plate can be pushed into the discharge plate 10. Large particles of sand and gravel and other materials can be scraped and pushed out, and a toggle brush plate 25 is added to push out large particles of sand and gravel that have not been scraped off the first screen plate 17 and the second screen plate 15. When the sealed switch door 13 is opened, the inside of the screening machine body 1 can leak out, and the pushed out large particles of sand and gravel and other materials will fall into the debris receiving frame 14, and the suction and dust removal pipe 2 is normally connected to an external suction device for exhaust and dust removal, which ensures the multi-layer crushing and screening of sand and gravel by the dust removal screening machine and the subsequent discharge and collection of remaining large particles of impurities.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dust removal screening machine that is easy to clean, comprising a screening machine body (1), the top of the screening machine body (1) being fixedly connected with an air suction dust removal pipe (2), characterized in that: A feed pipe (3) is fixedly connected to the left side of the screening machine body (1); a groove is provided on the side of the inner wall of the screening machine body (1); a spring telescopic rod (4) is fixedly connected to the inner wall of the groove; a lifting screen plate (5) is fixedly connected to one end of the spring telescopic rod (4); an upper material collecting trough plate (6) is fixedly connected to the top of the screening machine body (1) near its inner wall; a grinding wheel (7) with a driving end is fixedly installed on the inner wall of the screening machine body (1); a knocking frame (8) is connected to the bottom of the screening machine body (1) near its inner wall; An electric cylinder (9) is fixedly mounted on the rear side of the screening machine body (1); an output end of the electric cylinder (9) is fixedly connected to a discharge plate (10); a lower material collecting trough plate (11) is fixedly connected to the bottom of the screening machine body (1); a discharge pipe (12) is fixedly connected to the bottom of the screening machine body (1); a sealed switch door (13) is fixedly connected to the front side of the screening machine body (1); a debris receiving frame (14) is fixedly connected to the surface of the front side of the screening machine body (1); and the debris receiving frame (14) is located directly below the sealed switch door (13).

2. A dust removal and screening machine that is easy to clean according to claim 1, characterized in that: The bottom of the lifting screen plate (5) is a second screen plate (15), and a guide vertical plate (16) is fixedly connected to the top of the second screen plate (15) near its side, and the side of the guide vertical plate (16) is fixedly connected to the first screen plate (17).

3. A dust removal and screening machine that is easy to clean according to claim 2, characterized in that: A dust shield (18) is fixedly connected to the bottom of the second sieve plate (15), and a side surface of the dust shield (18) is located at a side surface of the groove.

4. The dust removal and screening machine that is easy to clean according to claim 1, characterized in that: The number of the grinding wheels (7) is at least two, and the driving ends of the at least two grinding wheels (7) are different. The grinding wheels (7) are located directly below the upper material collecting trough plate (6).

5. The dust removal and screening machine that is easy to clean according to claim 1, characterized in that: The bottom of the knocking frame (8) is a fixed plate (19), the top of the fixed plate (19) is fixedly connected to a second spring telescopic rod (20), the top of the second spring telescopic rod (20) is fixedly connected to a knocking vibration plate (21), the interior of the fixed plate (19) is connected to a rotating disk (22) via a driving end, the bottom of the rotating disk (22) is fixedly connected to a pushing plate (23), and a stretching sealing sleeve (24) is fixedly connected between the lower surface of the knocking vibration plate (21) and the upper surface of the fixed plate (19).

6. The dust removal and screening machine that is easy to clean according to claim 1, characterized in that: The main body of the ejection and discharge plate (10) is a smooth inclined plate, a bottom of which is fixedly connected to a toggle brush plate (25), and the ejection and discharge plate (10) is located at the rear side of the screening machine body (1).

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