Automatic sweepers in mixing plant vestibules

Abstract

The present application relates to the technical field of building concrete production, in particular to an automatic material scraping and dust removing device in a vestibule of a mixing station. A dust collecting mechanism and a driving structure connected with a first gear transmission are arranged in a box. A dust blocking plate is arranged on the bottom surface of the vestibule cavity and located on one side of the tooth belt close to the loading end of the vestibule. A dust falling port is arranged on the bottom surface of the vestibule cavity and located between the dust blocking plate and the tooth belt. A dust collecting box is arranged at the bottom of the vestibule and below the dust falling port, and the dust collecting box is connected with the dust collecting mechanism. Part of the scraped material is collected by the dust collecting mechanism and in the dust collecting box. The part of the scraped material that cannot be collected by the dust collecting mechanism is blocked by the blocking plate and falls into the dust falling port and enters the dust collecting box. The device can scrape the bottom belt of the conveying belt machine, collect the scraped material, combine dust collection and scraping, increase the available space inside the fully enclosed vestibule, and avoid damaging the conveying belt machine.

Description

Technical Field

[0001] This invention relates to the field of building concrete production technology, specifically an automatic scraping and ash removal device for a mixing plant corridor. Background Technology

[0002] In concrete mixing plants, the conveyor belt corridors are typically truss-type fully enclosed corridors. The total length of the corridor in the material yard can reach 300m and is arranged at an incline. The bottom of the corridor is fixed with supports, with a support spacing of 20-30m. If there is a road or if it is impossible to set up supports, the span needs to be increased. Traditionally, fixed scrapers are used to scrape the conveyor belt in the fully enclosed corridor. Traditional fully enclosed corridors do not have a self-cleaning function. During the scraping process, particles and dust are generated. If these particles and dust are not cleaned, dust will accumulate inside the corridor, reducing the space. Over time, this accumulation will cause wear and even cause the conveyor belt to jam. Therefore, it is necessary to manually enter the corridor regularly for cleaning. Summary of the Invention

[0003] The present invention aims to solve the above-mentioned problems, thereby providing an automatic scraping and ash removal device in the corridor of a mixing plant that does not require regular manual cleaning.

[0004] The technical solution adopted by the present invention to solve the aforementioned problem is as follows:

[0005] An automatic scraping and dust removal device for a mixing plant corridor includes a box body parallel to the bottom surface of the corridor cavity and the bottom belt of the conveyor belt. Semi-arc plates extend outward from both sides of the front and back of the box body. A support rod is provided between the semi-arc plates and the bottom surface of the corridor cavity. A rotating shaft is rotatably connected between two opposing semi-arc plates. A first gear is mounted on the rotating shaft, and a toothed belt is mounted on both first gears. A scraper is provided on the outer surface of the toothed belt. A dust collection mechanism and a drive structure connected to the first gear are provided inside the box body. A dust baffle is provided on the bottom surface of the corridor cavity, on the side of the toothed belt near the material loading end of the corridor. A dust discharge port is opened on the bottom surface of the corridor cavity, between the dust baffle and the toothed belt. A dust collection box is provided at the bottom of the corridor, below the dust discharge port, and is connected to the dust collection mechanism.

[0006] The present invention, which adopts the above technical solution, has the following prominent features compared with the prior art:

[0007] The drive mechanism rotates the toothed belt, causing the scraper on the toothed belt to scrape material off the bottom belt of the conveyor belt. Part of the scraped material is collected by the dust collection mechanism and placed in the dust collection box. The part that cannot be collected is blocked by the baffle plate and falls into the dust inlet and then into the dust collection box. This device can scrape material off the bottom belt of the conveyor belt and collect the scraped material, combining dust collection and scraping. This increases the usable space inside the fully enclosed corridor and avoids damage to the conveyor belt.

[0008] As a preferred embodiment, a further technical solution of the present invention is:

[0009] A partition plate is provided in the box body on the side near the discharge end of the corridor. The partition plate divides the box body into a drive chamber and a dust collection chamber. A first motor is provided in the drive chamber. A first pulley is mounted on the output end of the first motor. A second pulley is mounted on the shaft on the side near the discharge end of the corridor. An opening is provided on the side of the box body near the second pulley. A belt is mounted on both the first pulley and the second pulley.

[0010] Fixed seats are provided on the front and back of the dust collection chamber. A first connecting shaft is movably passed through each fixed seat. One end of the first connecting shaft passes through the partition plate, extends into the drive chamber, and is connected to a second motor. A first bevel gear is fitted on the first connecting shaft on both sides of the fixed seat. A second connecting shaft parallel to the first connecting shaft passes through the fixed seat. A collar is provided at both ends of the second connecting shaft. A third connecting shaft is movably passed through the collar. A second bevel gear meshing with the first bevel gear is provided at one end of the third connecting shaft. A fan is provided at the other end of the third connecting shaft. An air baffle is provided between the two rows of fans on the front and back. One end of the air baffle abuts against the partition plate. Dust inlet holes are provided on the front and back of the box body, opposite to the fans. A blower and a dust removal pipe are respectively provided on the front and back of the drive chamber, near the material feeding end of the corridor. The dust removal pipe passes through the box body and the corridor and is connected to the side wall of the dust collection box.

[0011] The dust collection box is set parallel to the corridor. A dust outlet is opened on the bottom surface of the dust collection box and on the side near the material feeding end of the corridor. A dust discharge pipe is set at the bottom of the dust outlet. A bracket is set inside the dust collection box. A third motor is set on the bracket. The output end of the third motor extends downward into the dust outlet and is fitted with a spiral blade. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the main sectional view of the structure in the corridor according to an embodiment of the present invention;

[0013] Figure 2 This is a schematic diagram of the main structure of the box in an embodiment of the present invention;

[0014] Figure 3This is a schematic cross-sectional view of the housing and the first gear in an embodiment of the present invention;

[0015] Figure 4 This is a top view of the internal structure of the box in an embodiment of the present invention;

[0016] Figure 5 This is a schematic diagram of the main structure of the dust collection box in an embodiment of the present invention;

[0017] Figure 6 This is a schematic diagram of the main view structure of the corridor in an embodiment of the present invention;

[0018] The following components are marked in the diagram: 1. Corridor; 2. Conveyor belt; 3. Box body; 4. Semi-arc plate; 5. Support rod; 6. First gear; 7. Toothed belt; 8. Scraper; 9. Dust baffle; 10. Dust collection box; 11. Divider plate; 12. First motor; 13. First pulley; 14. Second pulley; 15. Fixed seat; 16. First connecting shaft; 17. Second connecting shaft; 18. Third connecting shaft; 19. Fan; 20. Air baffle; 21. Air blower; 22. Dust removal pipe; 23. Bracket; 24. Third motor; 25. Spiral blade; 26. Implementation

[0019] The present invention will be further described below with reference to embodiments, which are intended only to provide a better understanding of the invention. Therefore, the examples given do not limit the scope of protection of the present invention.

[0020] An automatic scraping and ash removal device for a mixing plant corridor includes a box 3 located parallel to the bottom surface of the inner cavity of the corridor 1 and between the bottom belt of the conveyor belt 2. The corridor 1, the conveyor belt 2, and the box 3 are all arranged at an incline. The lower end of the corridor 1 is the feeding end. Semi-arc plates 4 are provided on both sides of the front and back of the box 3, respectively. A support rod 5 is provided between the semi-arc plates 4 and the bottom surface of the inner cavity of the corridor 1. A rotating shaft is rotatably connected between two opposing semi-arc plates 4. A first gear 6 is mounted on the rotating shaft. A toothed belt 7 is mounted on both first gears 6. A scraper 8 is provided on the outer surface of the toothed belt 7. 7 runs in the same direction as the conveyor belt 2. The scraper 8 scrapes the material from the bottom belt of the conveyor belt 2. The housing 3 is equipped with a dust collection mechanism and a drive structure that is connected to the first gear 6. A dust baffle 9 is provided on the bottom surface of the inner cavity of the corridor 1 and on the side of the toothed belt 7 near the feeding end of the corridor 1. A dust discharge port is provided on the bottom surface of the inner cavity of the corridor 1 and between the dust baffle 9 and the toothed belt 7. The dust baffle 9 blocks the material that the dust collection mechanism does not collect and makes it fall into the dust discharge port. A dust collection box 10 is provided at the bottom of the corridor 1 and below the dust discharge port, and the dust collection box 10 is connected to the dust collection mechanism.

[0021] A partition plate 11 is provided in the box 3 on the side near the discharge end of the corridor 1. The partition plate 11 divides the box 3 into a drive chamber and a dust collection chamber. The dust collection chamber is located on the side near the loading end of the corridor 1. A first motor 12 is provided in the drive chamber. A first pulley 13 is mounted on the output end of the first motor 12. A second pulley 14 is mounted on the shaft on the side near the discharge end of the corridor 1. The diameter of the second pulley 14 is twice the diameter of the first pulley 13. An opening is provided on the side of the box 3 near the second pulley 14. A belt is mounted on both the first pulley 13 and the second pulley 14. The opening of the box 3 allows the belt to pass through. The first motor 12 drives the second pulley 14 to rotate. The second pulley 14 drives the first gear 6 to rotate, thereby driving the scraper 8 to work.

[0022] Fixed seats 15 are respectively provided on the front and back of the dust collection chamber. A first connecting shaft 16 is movably passed through each fixed seat 15. One end of the first connecting shaft 16 passes through the partition plate 11, extends into the drive chamber, and is connected to a second motor 17. First bevel gears are respectively fitted on the first connecting shaft 16 and on both sides of the fixed seat 15. A second connecting shaft 18 parallel to the first connecting shaft 16 passes through the fixed seat 15. Collars are provided at both ends of the second connecting shaft 18. A third connecting shaft 19 is movably passed through the collars. The third connecting shaft 19 is perpendicular to the first connecting shaft 16. A second bevel gear meshing with the first bevel gear is provided at one end of the third connecting shaft 19. A fan 20 is provided at the other end of the third connecting shaft 19. A baffle plate 21 is provided between the two rows of fans 20 on the back. The baffle plate 21 separates the two rows of fans 20. The baffle plate 21 is perpendicular to the partition plate 11. One end of the baffle plate 21 abuts against the partition plate 11. Dust inlet holes are provided on the front and back of the box body 3, opposite to the fans 20. The dust inlet holes are honeycomb shaped. A blower 22 and a dust removal pipe 23 are respectively provided on the front and back of the drive chamber near the feeding end of the corridor 1. The dust removal pipe 23 runs through the box body 3 and the corridor 1 and is connected to the side wall of the dust collection box 10. The box body 3 is inclined. The fans 20 suck dust to the back side through the dust inlet holes. After the dust accumulates, it slides down to the lower end of the inclined box body 3. The blower 22 blows the dust into the dust removal pipe 23 and falls into the dust collection box 10.

[0023] The dust collection box 10 is set parallel to the corridor 1. A dust outlet is opened on the bottom surface of the dust collection box 10 and on the side near the feeding end of the corridor 1. A dust discharge pipe is set at the bottom of the dust outlet. A bracket 24 is set inside the dust collection box 10. A third motor 25 is set on the bracket 24. The output end of the third motor 25 extends downward into the dust outlet and is fitted with a spiral blade 26. The spiral blade 26 ensures that dust does not accumulate at the dust outlet.

[0024] The drive mechanism drives the toothed belt 7 to rotate, causing the scraper 8 on the toothed belt 7 to scrape material from the bottom belt of the conveyor belt 2. Part of the scraped material is collected by the dust collection mechanism and placed in the dust collection box 10. The part that cannot be collected by the dust collector is blocked by the baffle plate and falls into the dust inlet and enters the dust collection box 10. This device can scrape material from the bottom belt of the conveyor belt 2 and collect the scraped material. Combining dust collection and scraping increases the usable space inside the fully enclosed corridor 1 and avoids damage to the conveyor belt 2.

[0025] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of the present invention. All equivalent changes made based on the description and drawings of the present invention are included within the scope of the present invention.

Claims

1. An automatic scraping and ash removal device for a mixing plant corridor, characterized in that: The device includes a box located parallel to the bottom surface of the inner cavity of the corridor and between the bottom belt of the conveyor belt. Semi-arc plates extend outward from both sides of the front and back of the box. A support rod is provided between the semi-arc plates and the bottom surface of the inner cavity of the corridor. A rotating shaft is rotatably connected between two opposing semi-arc plates. A first gear is mounted on the rotating shaft. A toothed belt is mounted on both first gears. A scraper is provided on the outer surface of the toothed belt. A dust collection mechanism and a drive structure connected to the first gear are provided inside the box. A dust baffle is provided on the bottom surface of the inner cavity of the corridor and on the side of the toothed belt near the material feeding end of the corridor. A dust discharge port is opened on the bottom surface of the inner cavity of the corridor and between the dust baffle and the toothed belt. A dust collection box is provided at the bottom of the corridor and below the dust discharge port, and the dust collection box is connected to the dust collection mechanism. A partition plate is provided in the box body and on the side near the discharge end of the corridor. The partition plate divides the box body into a drive chamber and a dust collection chamber. A first motor is provided in the drive chamber. A first pulley is mounted on the output end of the first motor. A second pulley is mounted on the shaft on the side near the discharge end of the corridor. An opening is provided on the side of the box body near the second pulley. A belt is mounted on both the first pulley and the second pulley. Fixed seats are provided on the front and back of the dust collection chamber. A first connecting shaft is movably passed through each fixed seat. One end of the first connecting shaft passes through the partition plate, extends into the drive chamber, and is connected to a second motor. A first bevel gear is fitted on the first connecting shaft on both sides of the fixed seat. A second connecting shaft parallel to the first connecting shaft passes through the fixed seat. A collar is provided at both ends of the second connecting shaft. A third connecting shaft is movably passed through the collar. A second bevel gear meshing with the first bevel gear is provided at one end of the third connecting shaft. A fan is provided at the other end of the third connecting shaft. An air baffle is provided between the two rows of fans on the front and back. One end of the air baffle abuts against the partition plate. Dust inlet holes are provided on the front and back of the box body, opposite to the fans. A blower and a dust removal pipe are respectively provided on the front and back of the drive chamber, near the material feeding end of the corridor. The dust removal pipe passes through the box body and the corridor and is connected to the side wall of the dust collection box.

2. The automatic scraping and ash removal device in the corridor of the mixing plant according to claim 1, characterized in that: The dust collection box is set parallel to the corridor. A dust outlet is opened on the bottom surface of the dust collection box and on the side near the material feeding end of the corridor. A dust discharge pipe is set at the bottom of the dust outlet. A bracket is set inside the dust collection box. A third motor is set on the bracket. The output end of the third motor extends downward into the dust outlet and is fitted with a spiral blade.

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