Dust removal system of digging and anchoring all-in-one machine

Abstract

The utility model relates to the technical field of dust removal of digging and anchoring machines, in particular to a dust removal system of a digging and anchoring all-in-one machine, which comprises a digging and anchoring unit, a dust suction hopper, a negative pressure fan, an air delivery pipe, a wet dust removal box, an elastic filter screen and a segmentation filter screen, the front end face of the digging and anchoring unit is fixedly connected with the dust suction hopper, and the top of the dust suction hopper is fixedly connected with the negative pressure fan. The end of the dust collection hopper communicates with the wet dust removal box through an air conveying pipe, the inner wall of the wet dust removal box is slidably connected with a partition filter screen, two sets of elastic filter screens are symmetrically arranged in a box body, the two ends of each elastic filter screen are fixedly connected with the inner wall of the wet dust removal box and the partition filter screen correspondingly, and a fixing frame is detachably installed at the top of the wet dust removal box. And an exhaust grid is fixedly arranged in the fixed frame. Dust-containing air injected into water generates bubbles in the water, the bubbles are blocked by the elastic filter screen in the rising process, the bubbles are segmented and broken, dust in the bubbles is diffused in the water, and reentrainment of dust is avoided.

Description

Technical Field

[0001] This utility model relates to the field of dust removal technology for tunneling and anchoring machines, and more specifically, to a dust removal system for an integrated tunneling and anchoring machine. Background Technology

[0002] The dust removal system for tunneling and anchoring machines is a dust control device used during the operation of tunneling and anchoring machines. It mainly collects the dust generated during tunneling and anchoring operations through a dust suction hood, and uses the negative pressure generated by a fan to draw the dust-laden air into the dust collector.

[0003] In the prior art, patent document CN219974492U discloses a dust removal system for roadheaders and anchor cutters, which uses a connecting hose to transport dust-laden air to water in a dust collection box, utilizing the water to adsorb the dust. However, this device has shortcomings in actual use. After the air is injected into the water, a large number of bubbles are generated. When these bubbles rise to the surface and burst, they cause secondary dust re-entrainment and escape from the exhaust vent at the top of the dust collection box, causing environmental pollution. Utility Model Content

[0004] Based on the aforementioned technical problem that air injected into water will generate a large number of bubbles, and when these bubbles rise to the water surface and burst, they will cause secondary dust to be generated and escape from the exhaust vent at the top of the dust collection box, causing environmental pollution, this utility model proposes a dust removal system for an integrated excavator and anchor machine.

[0005] This utility model proposes a dust removal system for an integrated tunneling and anchoring machine, comprising a tunneling and anchoring machine unit, a dust collection hopper, a negative pressure fan, an air supply pipe, a wet dust collection box, an elastic filter screen, and a segmented filter screen. The dust collection hopper is fixedly connected to the front end of the tunneling and anchoring machine unit, and the negative pressure fan is fixedly connected to the top of the dust collection hopper. The end of the dust collection hopper is connected to the wet dust collection box through the air supply pipe.

[0006] The inner wall of the wet dust collector is slidably connected to the segmented filter screen, and two sets of elastic filter screens are symmetrically arranged inside the collector. The two ends of the elastic filter screen are fixedly connected to the inner wall of the wet dust collector and the segmented filter screen, respectively.

[0007] The top of the wet dust collector can be detachably installed with a fixing frame, and an exhaust grille is fixedly installed inside the fixing frame.

[0008] Preferably, the elastic filter screen includes a connecting portion and two curved portions, the two curved portions being located at both ends of the connecting portion and integrally formed therewith.

[0009] Preferably, a sliding rod and a ball screw are rotatably connected inside the wet dust collector. The sliding rod passes through the dividing filter screen and is slidably connected to it. The sliding part of the ball screw is fixedly connected to the dividing filter screen. One end of the ball screw passes through the outer wall of the wet dust collector and extends to its outer side.

[0010] Preferably, a base is fixedly connected to the outer wall of the wet dust collector, and a stepper motor is fixedly connected to the top of the base. The output end of the stepper motor is fixedly connected to the end of the ball screw.

[0011] Preferably, the outer wall of the gas supply pipe is connected to a branch pipe, the end of which is connected to a wet dust collector, and valves are provided on the outer walls of both the gas supply pipe and the branch pipe.

[0012] Preferably, the outer wall of the wet dust collector is connected to a water inlet pipe and a first drain pipe and a second drain pipe on both sides, and the first drain pipe and the second drain pipe are respectively located at the bottom of the box on both sides of the dividing filter screen.

[0013] Preferably, the water inlet direction of the water inlet pipe is perpendicular to the airflow direction of the air delivery pipe, and the water inlet of the water inlet pipe is located in the middle of the side wall of the wet dust collector.

[0014] Preferably, the exhaust grille is a multi-layered, interwoven mesh structure.

[0015] Preferably, the connection between the fixing frame and the top of the wet dust collector is by bolt fastening.

[0016] The beneficial effects of this utility model, achieved through the above technical solution, are as follows:

[0017] 1. Dust-laden air injected into the water generates bubbles. As the bubbles rise, they are blocked by an elastic filter, which breaks them apart and disperses the dust within them into the water, preventing secondary dust generation.

[0018] 2. The stepper motor drives the ball screw to rotate. The segmented filter screen can slide under the cooperation of the slide rod and the ball screw, moving the segmented filter screen away from the air supply pipe. This causes the segmented filter screen to unfold, increasing the space between the segmented filter screen above the air supply pipe and the wet dust collector, allowing the dust-laden air to come into contact with more water. By increasing the surface area of ​​the water, the capacity to remove dust is improved.

[0019] 3. When cleaning the elastic filter, open the valve on the branch pipe and close the valve on the air supply pipe. Through the other side of the split filter in the branch pipe, the split filter slides in the opposite direction under the cooperation of the slide rod and the ball screw, causing the other side of the elastic filter to unfold. At this time, due to the movement of the split filter, the space inside the wet dust collector at the location of the elastic filter that needs to be removed is reduced. The water is compressed by the split filter, causing dust to accumulate and making it easier to clean. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a partial structural schematic diagram of the present invention;

[0022] Figure 3 This is a schematic diagram of the internal structure of the wet dust collector of this utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the elastic filter screen of this utility model.

[0024] In the diagram: 1. Tunneling and anchoring unit; 2. Dust collection hopper; 3. Negative pressure fan; 4. Air supply pipe; 5. Wet dust collector; 6. Flexible filter screen; 601. Connecting part; 602. Bending part; 7. Fixing frame; 8. Exhaust grille; 9. Water inlet pipe; 10. First drain pipe; 11. Second drain pipe; 12. Base; 13. Stepper motor; 14. Branch pipe; 15. Valve; 16. Dividing filter screen; 17. Slide rod; 18. Ball screw. Detailed Implementation

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0026] like Figures 1-3 As shown, a dust removal system for an integrated tunneling and anchoring machine includes a tunneling and anchoring unit 1, a dust collection hopper 2, a negative pressure fan 3, an air supply pipe 4, a wet dust collection box 5, an elastic filter screen 6, and a segmented filter screen 16. The dust collection hopper 2 is fixedly connected to the front end of the tunneling and anchoring unit 1, the negative pressure fan 3 is fixedly connected to the top of the dust collection hopper 2, and the end of the dust collection hopper 2 is connected to the wet dust collection box 5 through the air supply pipe 4.

[0027] The inner wall of the wet dust collector 5 is slidably connected to the dividing filter screen 16, and two sets of elastic filter screens 6 are symmetrically arranged inside the box. The two ends of the elastic filter screen 6 are fixedly connected to the inner wall of the wet dust collector 5 and the dividing filter screen 16 respectively.

[0028] The top of the wet dust collector 5 is detachably mounted with a fixed frame 7, and an exhaust grille 8 is fixedly installed inside the fixed frame 7.

[0029] like Figure 4 As shown, the elastic filter 6 includes a connecting part 601 and two curved parts 602, which are located at both ends of the connecting part 601 and integrally formed therewith. The elastic filter 6 has good elasticity and flexibility. It can break up air bubbles and allow the dust in the bubbles to be fully diffused in the water, thereby improving the dust removal effect and avoiding secondary dust re-entrainment.

[0030] like Figures 1-3As shown, a sliding rod 17 and a ball screw 18 are rotatably connected inside the wet dust collector 5. The sliding rod 17 passes through and slidably connects to the dividing filter screen 16. The sliding part of the ball screw 18 is fixedly connected to the dividing filter screen 16. One end of the ball screw 18 passes through the outer wall of the wet dust collector 5 and extends to its outer side. A base 12 is fixedly connected to the outer wall of the wet dust collector 5. A stepper motor 13 is fixedly connected to the top of the base 12. The output end of the stepper motor 13 is fixedly connected to the end of the ball screw 18. The dividing filter screen 16 can slide with the cooperation of the sliding rod 17 and the ball screw 18, which facilitates the adjustment of the position of the dividing filter screen 16, thereby changing the spatial layout inside the wet dust collector 5 as needed to adapt to different dust collection conditions.

[0031] like Figure 1 and Figure 2 As shown, the outer wall of the air supply pipe 4 is connected to the branch pipe 14, and the end of the branch pipe 14 is connected to the wet dust collector 5. Valves 15 are provided on the outer walls of both the air supply pipe 4 and the branch pipe 14. When it is necessary to clean the elastic filter 6, by opening the valve 15 on the branch pipe 14 and closing the valve 15 on the air supply pipe 4, the dust-laden air is transported to the other side of the segmented filter 16 in the wet dust collector 5, realizing online cleaning of the elastic filter 6 without stopping and disassembling the entire dust collection system, thus improving the operating efficiency and stability of the equipment.

[0032] like Figure 3 As shown, the outer wall of the wet dust collector 5 is connected to the water inlet pipe 9 and the first drain pipe 10 and the second drain pipe 11 on both sides. The first drain pipe 10 and the second drain pipe 11 are located at the bottom of the box on both sides of the dividing filter screen 16.

[0033] The water inlet pipe 9 is used to inject clean water into the wet dust collector 5 to ensure the dust removal effect. The first drain pipe 10 and the second drain pipe 11 can respectively discharge the sewage on both sides of the dividing filter screen 16, which facilitates the separate treatment of sewage in different areas.

[0034] like Figure 2 and Figure 3 As shown, the water inlet direction of the water inlet pipe 9 is perpendicular to the airflow direction of the air supply pipe 4, and the water inlet of the water inlet pipe 9 is located in the middle of the side wall of the wet dust collector 5. The exhaust grille 8 is a multi-layered interwoven mesh structure. The multi-layered interwoven mesh structure of the exhaust grille 8 can effectively filter out tiny dust particles in the discharged gas, further improving the purification effect of the dust removal system.

[0035] The fixed frame 7 is connected to the top of the wet dust collector 5 by bolt fastening. The bolt fastening method facilitates the disassembly and installation of the fixed frame 7, and makes it convenient for regular inspection, cleaning and replacement of the exhaust grille 8.

[0036] Working principle: When the tunneling and anchoring unit 1 is working, when the dust-laden air is transported through the air supply pipe 4, the dust suction hopper 2 fixed at its front end generates suction under the action of the negative pressure fan 3, which sucks in the dust-laden air generated during the tunneling and anchoring process. The dust-laden air is then transported to the wet dust collection box 5 through the air supply pipe 4.

[0037] When dust-laden air enters the wet dust collector 5, it first comes into contact with the water inside the wet dust collector 5, and the water initially adsorbs some of the dust.

[0038] Stepper motor 13 drives ball screw 18 to rotate. The segmented filter screen 16 can slide under the cooperation of slide bar 17 and ball screw 18, moving the segmented filter screen 16 away from the side of air supply pipe 4, so that the segmented filter screen 16 unfolds and increases the space between the segmented filter screen 16 above air supply pipe 4 and wet dust collection box 5.

[0039] Dust-laden air injected into the water generates bubbles. As the bubbles rise, they are blocked by the elastic filter 6, which breaks them apart and disperses the dust in the bubbles into the water, preventing secondary dust generation.

[0040] When cleaning the elastic filter 6, open the valve 15 on the branch pipe 14 and close the valve 15 on the air supply pipe 4. The dust-laden air is then transported through the branch pipe 14 to the other side of the segmented filter 16 in the wet dust collector 5. The segmented filter 16 slides in the opposite direction with the cooperation of the slide rod 17 and the ball screw 18, causing the other side of the elastic filter 6 to unfold. At this time, due to the movement of the segmented filter 16, the space inside the wet dust collector 5 at the position of the elastic filter 6 that needs to be disassembled is reduced, and the water is compressed through the segmented filter 16.

[0041] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A dust removal system for a combined excavating-anchor machine, characterized by include: The projector is equipped with a tunneling and anchoring unit (1), a dust collection hopper (2), a negative pressure fan (3), an air supply pipe (4), a wet dust collection box (5), an elastic filter screen (6), and a segmented filter screen (16). The front end of the tunneling and anchoring unit (1) is fixedly connected to the dust collection hopper (2), the top of the dust collection hopper (2) is fixedly connected to the negative pressure fan (3), and the end of the dust collection hopper (2) is connected to the wet dust collection box (5) through the air supply pipe (4). The inner wall of the wet dust collector (5) is slidably connected to the segmented filter screen (16), and two sets of elastic filter screens (6) are symmetrically arranged inside the box. The two ends of the elastic filter screen (6) are fixedly connected to the inner wall of the wet dust collector (5) and the segmented filter screen (16) respectively. The top of the wet dust collector (5) is detachably mounted with a fixing frame (7), and an exhaust grille (8) is fixedly installed inside the fixing frame (7).

2. The dust removal system of the integrated anchor-excavation machine according to claim 1, characterized in that: The elastic filter (6) includes a connecting part (601) and two curved parts (602), the two curved parts (602) being located at both ends of the connecting part (601) and integrally formed therewith.

3. The dust removal system of the integrated anchor-excavation machine according to claim 2, characterized in that: The wet dust collector (5) is rotatably connected to a slide rod (17) and a ball screw (18). The slide rod (17) passes through the dividing filter screen (16) and is slidably connected to it. The sliding part of the ball screw (18) is fixedly connected to the dividing filter screen (16). One end of the ball screw (18) passes through the outer wall of the wet dust collector (5) and extends to its outer side.

4. The dust removal system for the integrated tunneling and anchoring machine according to claim 3, characterized in that: The outer wall of the wet dust collector (5) is fixedly connected to a base (12), and a stepper motor (13) is fixedly connected to the top of the base (12). The output end of the stepper motor (13) is fixedly connected to the end of the ball screw (18).

5. The dust removal system of the integrated anchor-excavation machine according to claim 4, characterized in that: The outer wall of the gas supply pipe (4) is connected to the branch pipe (14), and the end of the branch pipe (14) is connected to the wet dust collector (5). Valves (15) are provided on the outer walls of both the gas supply pipe (4) and the branch pipe (14).

6. The dust removal system of the integrated anchor-excavation machine according to claim 5, characterized in that: The outer wall of the wet dust collector (5) is connected to the water inlet pipe (9) and the first drain pipe (10) and the second drain pipe (11) on both sides. The first drain pipe (10) and the second drain pipe (11) are located at the bottom of the box on both sides of the dividing filter screen (16).

7. The dust removal system of the integrated anchor-excavation machine according to claim 6, characterized in that: The water inlet direction of the water inlet pipe (9) is perpendicular to the airflow direction of the gas transmission pipe (4), and the water inlet of the water inlet pipe (9) is located in the middle of the side wall of the wet dust collector (5).

8. The dust removal system of the combined anchor-excavation machine according to claim 7, characterized in that: The exhaust grille (8) is a multi-layered, interwoven mesh structure.

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