Cement dust collection equipment

Abstract

The utility model relates to the technical field of dust collection equipment, in particular to cement dust collection equipment. According to the technical scheme, the dust collection device comprises an air inlet pipe, a compressed air pipe, an air outlet pipe and a dust collection box, a separation frame is fixedly installed at the position, close to the upper surface, in the dust collection box, the compressed air pipe is fixedly installed at the position, above the separation frame, in the dust collection box, and air outlet holes are formed in the lower surface of the compressed air pipe; a porous inner cylinder is fixedly installed on the lower surface of the separation frame, the outer surface of the porous inner cylinder is fixedly sleeved with a dust collection cloth bag, a necking pipe is fixedly connected to the lower surface of the porous inner cylinder, a fixing plate is fixedly installed on the lower surface of the necking pipe, a through hole is formed in the upper surface of the fixing plate, and a sliding rod is slidably inserted into the through hole; the end, located in the necking pipe, of the sliding rod is fixedly connected with a conical piston. Dust in the dust collection cloth bag can be removed, and air pollution is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of dust collecting equipment, in particular to cement dust collecting equipment. Background Art

[0002] In the process of cement production, bag dust collectors are often used to collect dust to meet environmental protection requirements, improve the working environment, prevent occupational hazards, and the recovered dust can be reused to increase revenue for the company.

[0003] During long-term use, the existing bag dust collector used in cement production regularly blows compressed gas into the dust bag to remove dust on the surface of the dust bag. However, some dust passes through the dust bag and enters the interior of the dust bag, and this part of the dust cannot be cleaned up. For this reason, we propose a cement dust collection device. Utility Model Content

[0004] The utility model aims to provide a cement dust collecting device, which has the advantage of being able to remove dust inside a dust collecting bag to avoid causing air pollution, and solves the problem that during the long-term use of the existing bag dust collector used in cement production, compressed gas is regularly blown into the dust collecting bag to remove the dust on the surface of the dust collecting bag, but some dust passes through the dust collecting bag and enters the interior of the dust collecting bag, and this part of the dust cannot be cleaned up.

[0005] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a cement dust collecting device, comprising an air inlet pipe, a compressed air pipe, an air outlet pipe and a dust collecting box, wherein a partition frame is fixedly installed inside the dust collecting box near the upper surface, a compressed air pipe is fixedly installed inside the dust collecting box at a position above the partition frame, an air outlet hole is provided on the lower surface of the compressed air pipe, a porous inner cylinder is fixedly installed on the lower surface of the partition frame, a dust collecting bag is fixedly sleeved on the outer surface of the porous inner cylinder, a shrinking pipe is fixedly connected to the lower surface of the porous inner cylinder, a fixing plate is fixedly installed on the lower surface of the shrinking pipe, a through hole is provided on the upper surface of the fixing plate, a sliding rod is slidably inserted in the through hole, one end of the sliding rod located inside the shrinking pipe is fixedly connected to a conical piston, and a compression spring is fixedly sleeved on the outer surface of the sliding rod between the conical piston and the fixing plate.

[0006] Preferably, an air inlet pipe is fixedly connected to one side of the dust collecting box at a position close to the lower surface, and an air outlet pipe is fixedly connected to one side of the dust collecting box away from the air inlet pipe at a position above the partition frame.

[0007] Preferably, a dust exhaust valve is fixedly mounted on the lower surface of the dust collecting box.

[0008] Preferably, annular grooves are symmetrically arranged on the outer surface of the porous inner cylinder near the upper surface and the lower surface, and a clamping ring is arranged inside each of the two annular grooves, and the dust collecting bag is located between the clamping ring and the porous inner cylinder.

[0009] Preferably, the lower surface of the compressed air pipe is fixedly connected with an inner tube and an outer tube, and the inner tube is located inside the outer tube, the outer tube and the compressed air pipe are connected through an air outlet, a piston sleeve is slidably sleeved on the outer surface of the inner tube, a tensioning spring is fixedly connected to the upper surface of the piston sleeve, and the end of the tensioning spring is fixedly connected to the lower surface of the compressed air pipe, and a connecting port is provided on the outer surface of the inner tube near the lower surface.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0011] The utility model achieves the effect of removing dust from the dust collecting bag and avoiding atmospheric pollution by arranging a compressed air pipe, an air outlet, a porous inner cylinder, a dust collecting bag, a shrinking pipe, a fixing plate, a through hole, a sliding rod, a compression spring and a tapered piston. The dust-laden gas enters the dust collecting box from the inlet pipe, and the gas after filtering the dust by the dust collecting bag is discharged from the outlet pipe. The filtered and collected dust falls into the large dust collecting box. When it is necessary to clean the dust adhering to the surface of the dust collecting bag, the compressed air pipe blows high-pressure gas into the dust collecting bag through the air outlet hole, so that the dust adhering to the surface of the dust collecting bag is cleaned. At the same time, the air pressure inside the dust collecting bag increases, so that the conical piston moves downward, the compression spring is compressed, and the dust inside the dust collecting bag is discharged from the gap between the shrinking pipe and the conical piston. After the dust removal is completed, the compressed compression spring is released, and the conical piston rises and is inserted into the shrinking pipe to play a sealing role.

[0012] 2. The utility model achieves the effect of improving the cleaning efficiency of the outer surface and the interior of the dust bag by arranging an inner tube, an outer tube, a tensioning spring, a piston sleeve and a connecting port. When the compressed gas in the compressed air pipe enters the outer tube, the tensioning spring is stretched, the piston sleeve moves down and contacts the partition frame, the piston sleeve and the connecting port are staggered, the compressed gas in the outer tube enters the inner tube from the connecting port, and the compressed gas in the inner tube enters the dust bag, so that the compressed gas can better enter the interior of the dust bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0014] Figure 2 For this utility model Figure 1 A is a schematic diagram of the enlarged structure of the middle part;

[0015] Figure 3 For this utility model Figure 1 Schematic diagram of the enlarged structure of B;

[0016] Figure 4 For this utility model Figure 1 Schematic diagram of the enlarged structure of C in the figure.

[0017] Figure numerals: 1. air inlet pipe; 2. compressed air pipe; 3. air outlet pipe; 4. partition frame; 5. dust collecting bag; 6. porous inner cylinder; 7. dust collecting box; 8. dust exhaust valve; 9. air outlet; 10. tension spring; 11. outer tube; 12. piston sleeve; 13. inner tube; 14. connecting port; 15. annular groove; 16. retaining ring; 17. shrinking tube; 18. tapered piston; 19. fixing plate; 20. sliding rod; 21. through hole; 22. compression spring. DETAILED DESCRIPTION

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

[0019] Embodiment 1

[0020] like Figures 1 to 4As shown, a cement dust collecting device proposed by the utility model comprises an air inlet pipe 1, a compressed air pipe 2, an air outlet pipe 3 and a dust collecting box 7. A partition frame 4 is fixedly installed near the upper surface of the dust collecting box 7. The partition frame 4 divides the dust collecting box 7 into two upper and lower chambers. A compressed air pipe 2 is fixedly installed above the partition frame 4 inside the dust collecting box 7. An air outlet hole 9 is arranged on the lower surface of the compressed air pipe 2. A porous inner cylinder 6 is fixedly installed on the lower surface of the partition frame 4, and the porous inner cylinder 6 and the upper chamber of the dust collecting box 7 are connected. The chamber is connected, the outer surface of the porous inner cylinder 6 is fixedly sleeved with a dust collecting bag 5, the lower surface of the porous inner cylinder 6 is fixedly connected with a shrinking tube 17, the diameter of the shrinking tube 17 gradually decreases from top to bottom and then gradually increases, the diameters of the upper and lower ends of the shrinking tube 17 are consistent, a fixing plate 19 is fixedly installed on the lower surface of the shrinking tube 17, a through hole 21 is provided on the upper surface of the fixing plate 19, a sliding rod 20 is slidably inserted in the through hole 21, and one end of the sliding rod 20 located inside the shrinking tube 17 is fixedly connected with a conical piston 18, and the conical piston The conical inclined surface of 18 fits with the inner wall of the shrinking tube 17, and the diameter of the conical piston 18 is between the maximum inner diameter and the minimum inner diameter of the shrinking tube 17. The outer surface of the slide rod 20 is located between the conical piston 18 and the fixed plate 19 and is fixedly sleeved with a compression spring 22. The dust collecting box 7 is fixedly connected with an air inlet pipe 1 at a position close to the lower surface. The dust-containing gas in the cement production process enters the dust collecting box 7 through the air inlet pipe 1. The side of the dust collecting box 7 facing away from the air inlet pipe 1 is fixedly connected at a position above the partition frame 4. There is an air outlet pipe 3, and a dust exhaust valve 8 is fixedly installed on the lower surface of the dust collecting box 7. Annular grooves 15 are symmetrically arranged on the outer surface of the porous inner cylinder 6 near the upper surface and the lower surface. A clamping ring 16 is arranged inside the two annular grooves 15, and the dust collecting bag 5 is located between the clamping ring 16 and the porous inner cylinder 6. The dust collecting bag 5 is in the shape of a straight cylinder with upper and lower openings. The two ends of the dust collecting bag 5 mounted on the outer surface of the porous inner cylinder 6 are clamped by two clamping rings 16 and the two annular grooves 15, thereby facilitating the disassembly and assembly of the dust collecting bag 5.

[0021] When the utility model is in use, the dust-laden gas enters the dust collecting box 7 from the air inlet pipe 1, the gas after the dust is filtered out by the dust collecting bag 5 is discharged from the air outlet pipe 3, and the filtered and collected dust falls into the interior of the large dust collecting box 7. When it is necessary to remove the dust adhering to the surface of the dust collecting bag 5, the compressed air pipe 2 blows high-pressure gas into the dust collecting bag 5 through the air outlet hole 9, so that the dust adhering to the surface of the dust collecting bag 5 is removed, and at the same time, the air pressure inside the dust collecting bag 5 increases, so that the conical piston 18 moves downward, the compression spring 22 is compressed, and the dust inside the dust collecting bag 5 is discharged from the gap between the shrinking tube 17 and the conical piston 18. After the dust removal is completed, the compressed compression spring 22 is released, and the conical piston 18 rises and is inserted into the shrinking tube 17 to play a sealing role.

[0022] Embodiment 2

[0023] like Figures 1 to 4As shown, a cement dust collecting device proposed by the utility model, compared with the first embodiment, this embodiment also includes an inner tube 13 and an outer tube 11 fixedly connected to the lower surface of the compressed air pipe 2, and the inner tube 13 is located inside the outer tube 11, the outer tube 11 and the compressed air pipe 2 are connected through the air outlet 9, the outer surface of the inner tube 13 is slidably sleeved with a piston sleeve 12, the upper surface of the piston sleeve 12 is fixedly connected with a tensioning spring 10, and the end of the tensioning spring 10 is fixedly connected to the lower surface of the compressed air pipe 2, and a connecting port 14 is provided on the outer surface of the inner tube 13 near the lower surface.

[0024] In this embodiment, when the compressed gas inside the compressed air pipe 2 enters the outer tube 11, the tensioning spring 10 is stretched, the piston sleeve 12 moves down and contacts the partition frame 4, the piston sleeve 12 and the connecting port 14 are staggered, and the compressed gas in the outer tube 11 enters the inner tube 13 from the connecting port 14, and the compressed gas in the inner tube 13 enters the dust collecting bag 5, so that the compressed gas can better enter the dust collecting bag 5.

[0025] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. A cement dust collecting device, comprising an air inlet pipe (1), a compressed air pipe (2), an air outlet pipe (3) and a dust collecting box (7), characterized in that: A partition frame (4) is fixedly installed in the dust collecting box (7) at a position near the upper surface, a compressed air pipe (2) is fixedly installed in the dust collecting box (7) at a position above the partition frame (4), an air outlet hole (9) is arranged on the lower surface of the compressed air pipe (2), a porous inner cylinder (6) is fixedly installed on the lower surface of the partition frame (4), a dust collecting bag (5) is fixedly sleeved on the outer surface of the porous inner cylinder (6), and a compressed air pipe (2) is fixedly connected to the lower surface of the porous inner cylinder (6). A conical pipe (17) is provided, wherein a fixing plate (19) is fixedly installed on the lower surface of the conical pipe (17), a through hole (21) is provided on the upper surface of the fixing plate (19), a sliding rod (20) is slidably inserted inside the through hole (21), one end of the sliding rod (20) located inside the conical pipe (17) is fixedly connected to a conical piston (18), and a compression spring (22) is fixedly sleeved on the outer surface of the sliding rod (20) located between the conical piston (18) and the fixing plate (19).

2. A cement dust collecting device according to claim 1, characterized in that: An air inlet pipe (1) is fixedly connected to one side of the dust collecting box (7) at a position close to the lower surface, and an air outlet pipe (3) is fixedly connected to one side of the dust collecting box (7) facing away from the air inlet pipe (1) at a position above the partition frame (4).

3. A cement dust collecting device according to claim 1, characterized in that: A dust exhaust valve (8) is fixedly mounted on the lower surface of the dust collecting box (7).

4. The cement dust collecting device according to claim 1, characterized in that: Annular grooves (15) are symmetrically arranged on the outer surface of the porous inner cylinder (6) near the upper surface and the lower surface, and a clamping ring (16) is arranged inside each of the two annular grooves (15), and the dust collecting bag (5) is located between the clamping ring (16) and the porous inner cylinder (6).

5. The cement dust collecting device according to claim 1, characterized in that: The lower surface of the compressed air pipe (2) is fixedly connected with an inner pipe (13) and an outer pipe (11), and the inner pipe (13) is located inside the outer pipe (11). The outer pipe (11) and the compressed air pipe (2) are connected via an air outlet (9). The outer surface of the inner pipe (13) is slidably sleeved with a piston sleeve (12). The upper surface of the piston sleeve (12) is fixedly connected with a tension spring (10), and the end of the tension spring (10) is fixedly connected to the lower surface of the compressed air pipe (2). A connecting port (14) is provided on the outer surface of the inner pipe (13) near the lower surface.

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