Heading machine with dust removal device

Abstract

The utility model relates to the technical field of heading machines, and provides a heading machine with a dust removal device, which comprises a heading machine body, a heading machine arm and a conveying device, an accommodating space is arranged on the heading machine body, a dust removal box is arranged in the accommodating space, a dust suction port is arranged in the dust removal box, and an accommodating area for dust removal is arranged in the dust removal box. A filtering area and an electric precipitation area are sequentially arranged in the containing area, the dust suction opening is communicated with the inner wall of the filtering area, a filter screen is fixedly connected to the side, close to the dust suction opening, of the filtering area, a plurality of dust collecting electrodes are fixedly connected to the electric precipitation area, a conductive column is fixedly connected to the collecting area, and a plurality of conductive electrodes are arranged on the conductive column in the axis direction at intervals. The bottom of the dust removal box is fixedly connected with a dust collection box, the side wall of the dust collection box is fixedly connected with the inner wall of the containing space, an outlet of the dust collection box is communicated with the conveying device, and by means of the technical scheme, the problems that when the heading machine works, dust is too much, the dust falling effect is poor, and purified dust is inconvenient to treat are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of tunneling machines, and in particular to a tunneling machine with a dust removal device. Background Art

[0002] In the mining industry, tunnel boring machines are widely used in underground mines such as coal, gold, and copper. They can dig out ore in an efficient manner and transport it to the surface for subsequent processing. The use of tunnel boring machines can improve mining efficiency, reduce manpower input, and reduce risks to personnel safety.

[0003] When the tunnel boring machine is working, it is easy to raise a lot of dust in the air, which not only affects the air quality of the construction site, but also affects the health of the workers. The existing dust reduction method is usually to reduce dust on the work site through a spray system, but the water mist may affect the clarity of the operator's vision, hinder the work of the workers on the construction site, and increase the probability of accidents. Utility Model Content

[0004] The utility model provides a tunneling machine with a dust removal device, which solves the problems of excessive dust, poor dust reduction effect and inconvenient treatment of dust after purification when the tunneling machine is working.

[0005] The technical solution of the utility model is as follows: A tunneling machine with a dust removal device comprises a tunneling machine body, a tunneling machine arm and a conveying device, a accommodating space is provided on the tunneling machine body, a dust removal box is provided in the accommodating space, the dust removal box is provided with a dust suction port, a accommodating area for dust removal is provided in the dust removal box, a filtering area and an electric dust removal area are sequentially provided in the accommodating area, the dust suction port is connected to the inner wall of the filtering area, a filter screen is fixedly connected to the side of the filtering area close to the dust suction port, a plurality of dust collecting electrodes are fixedly connected to the electric dust removal area, the gaps between the dust collecting electrodes constitute a collecting area, a conductive column is fixedly connected to the collecting area, a plurality of conductive electrodes are arranged on the conductive column along the axial direction and at intervals, a dust collecting box is fixedly connected to the bottom of the dust removal box, the side walls of the dust collecting box are fixedly connected to the inner wall of the accommodating space, and the outlet of the dust collecting box is connected to the conveying device.

[0006] Furthermore, a fixing plate is provided on the outer wall of the dust removal box, and the fixing plate is threadedly connected to the tunnel boring machine body.

[0007] Furthermore, a suction fan is provided outside the dust removal box, and the suction fan is connected to a suction pipe. The suction pipe is arranged outside the arm of the tunnel boring machine, and one end of the suction pipe faces the head of the tunnel boring machine. The suction pipe has a plurality of suction pipes.

[0008] Furthermore, the air suction pipe is fixedly connected to the arm of the tunnel boring machine via an annular fixing hoop.

[0009] Furthermore, the filter screen is made of polypropylene film filter material, and a conductive coating is provided on the surface of the filter screen.

[0010] Furthermore, a vibrator is provided inside the dust removal box, and a high-voltage power supply detector is provided on the side of the dust removal box.

[0011] The working principle and beneficial effects of the utility model are as follows: after the air containing high concentration of dust enters the dust removal box, it first passes through the filter screen, a large amount of dust is filtered out by the filter screen, and the dust with large particles falls into the dust collecting box at the bottom of the dust removal box, and the air containing low concentration of small dust particles continues to be filtered through the electrostatic precipitator area. The air after filtering in the electrostatic precipitator area is already clean air, and the dust removal efficiency is high.

[0012] The utility model flexibly arranges the dust suction pipe on the arm of the road boring machine, and the suction fan sucks the dust-containing gas into the dust removal box through the suction pipe. The dust removal box can capture the charged dust through the electric field to achieve the purpose of efficient dust removal. In comparison, the dust removal box does not need an additional water source, and directly removes dust through the electrostatic field, which can save a large amount of water resources. At the same time, the outlet of the dust collection box is connected with the output device, and the collected dust can be directly discharged to the outside of the road boring machine by the road boring machine conveying device, thereby reducing the secondary treatment and cleaning process of the dust, reducing the related costs, and improving the utilization efficiency of resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is an explosion diagram of the utility model;

[0016] Figure 3 It is a partial cross-sectional view of the utility model;

[0017] Figure 4 This is a schematic diagram of the internal structure of the dust removal box of the utility model.

[0018] In the figure: 1. Tunnel boring machine body; 2. Tunnel boring machine arm; 3. Conveying device; 4. Dust removal box; 401. Dust suction port; 402. Filter area; 403. Electrostatic precipitator area; 404. Filter; 405. Dust collecting electrode; 406. Collection area; 407. Conductive column; 408. Conductive electrode; 409. Dust collection box; 410. Fixed plate; 411. Suction fan; 412. Suction pipe; 5. Annular fixing hoop; 6. Vibrator; 7. High-voltage power supply detector. DETAILED DESCRIPTION

[0019] The following will be combined with 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 of 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.

[0020] Referring to 1-4, a tunnel boring machine with a dust removal device comprises a tunnel boring machine body 1, a tunnel boring machine arm 2 and a conveying device 3. A accommodating space is provided on the tunnel boring machine body 1, a dust removal box 4 is provided in the accommodating space, the dust removal box 4 is provided with a dust suction port 401, a accommodating area is provided in the dust removal box 4, and a filtering area 402 and an electric dust removal area 403 are provided in the accommodating area in sequence. When the dust-containing gas enters the dust removal box 4, the filtering area 402 performs preliminary filtration and then the electric dust removal area 403 performs final filtration. Through the two filtrations, the tiny particles and fine dust in the gas can be further reduced or even removed. This layer-by-layer filtration method can In order to greatly improve the filtering efficiency, the dust suction port 401 is connected to the inner wall of the filter area 402, and a filter screen 404 is fixedly connected to the side of the filter area 402 close to the dust suction port 401. The filter screen 404 is preferably made of polypropylene film filter material. The polypropylene film filter material has good pollution resistance and easy cleaning properties, is not easily adhered to and blocked by particulate matter, and has a simple and convenient cleaning process. It can be recycled, reducing the cost of maintenance and replacement of the filter screen 404. Therefore, the filter screen 404 is preferably made of polypropylene film filter material, and the surface of the filter screen 404 is coated with a conductive coating. The conductive coating on the surface of the filter screen 404 can prevent static charge from accumulating on the surface of the filter screen 404.

[0021] The electrostatic precipitator area 403 in this embodiment is fixedly connected to a plurality of dust collecting electrodes 405, the space of the dust collecting electrodes 405 is perpendicular to the filter screen 404, the gaps between the dust collecting electrodes 405 constitute a collection area 406, the collection area 406 is fixedly connected to a conductive column 407, and a plurality of conductive electrodes 408 are arranged on the conductive column 407 along the axial direction and at intervals, a dust collecting box 409 is fixedly connected to the bottom of the dust removal box 4, the side wall of the dust collecting box 409 is fixedly connected to the inner wall of the accommodating space, the outlet of the dust collecting box 409 is connected to the conveying device 3, and when the dust-containing gas enters the dust removal box 4, it is filtered for the first time through the filter screen 404 , the filter 404 can intercept the particles in the dust-containing gas through its own small gaps. The larger particles cannot pass through the pores of the filter 404 and are thus intercepted by the filter 404. The gas containing smaller dust particles enters the electrostatic precipitator area 403. Under the action of the strong electric field, the gas molecules are ionized into ions, and the dust particles acquire positive and negative charges. Under the action of the electric field, the charged dust particles begin to move away from the direction of the electric field lines and move to the surface of the dust collecting electrode 405. The dust loses its charge and accumulates on the dust collecting electrode 405. The air filtered by the electrostatic precipitator area 403 is already clean air.

[0022] In this embodiment, the outer wall of the dust removal box 4 is provided with a fixing plate 410, and the fixing plate 410 is threadedly connected to the tunnel boring machine body 1. The threaded connection can provide a firm fixation to ensure that the tunnel boring machine will not shake or loosen during operation, and can ensure the stability and safety of the dust removal box 4 in the tunnel boring machine. The threaded connection can be repeatedly disassembled and assembled many times without damaging the threads or connecting components. This makes it possible to easily disassemble the threaded connection and reuse it when the dust removal box 4 needs to be repaired, saving materials and costs.

[0023] In this embodiment, a suction fan 411 is provided on the outside of the dust removal box 4, and the suction fan 411 is connected to a suction pipe 412. The suction pipe 412 is arranged on the outside of the tunnel boring machine arm 2, and the suction pipe 412 faces the head of the tunnel boring machine. There are several suction pipes 412. Arranging the suction pipe 412 on the arm can be closer to the tunneling surface or construction area, and can directly absorb the generated dust to improve the dust removal effect. The suction pipe 412 arranged on the arm can also be flexibly adjusted and directionally sucked according to needs.

[0024] In this embodiment, the suction pipe 412 is fixedly connected to the tunnel boring machine arm 2 by an annular fixing hoop 5. The annular hoop is detachably connected to the tunnel boring machine arm 2, which facilitates the disassembly, replacement and maintenance of the suction pipe 412. The suction pipe 412 is fixedly connected to the tunnel boring machine arm 2, thereby avoiding the suction pipe 412 from affecting the tunnel boring machine arm 2 when the tunnel boring machine is working.

[0025] In this embodiment, a vibrator 6 is provided inside the dust removal box 4, and a high-voltage power supply detector 7 is provided on the side of the dust removal box 4. The high-voltage power supply detector 7 can detect abnormal high voltage conditions in time to avoid safety accidents and equipment failures. The vibrator 6 can help dust separate from the filter material through vibration, making it easier to remove, thereby improving the cleaning effect.

[0026] Working principle: The suction fan 411 is started, and the dust-containing gas is sucked into the dust removal box 4 through the suction pipe 412 fixed on the arm 2 of the tunnel boring machine, and the first filtration is carried out through the filter 404. The filter 404 can intercept the particles in the dust-containing gas through its own fine gaps. The larger particles cannot pass through the pores of the filter 404 and are intercepted by the filter 404. The gas with smaller dust particles enters the electrostatic precipitator area 403. Under the action of the strong electric field, the gas molecules are ionized into ions, and the dust particles acquire positive and negative charges. Under the action of the electric field, the charged dust particles start to move away from the direction of the electric field lines and move to the surface of the dust collecting electrode 405. The dust loses its charge and accumulates on the dust collecting electrode 405. When it accumulates to a certain extent, the vibrator 6 is started. The vibrator 6 helps the dust to separate from the filter material through vibration, causing it to fall, and fall into the conveying device 3 from the dust collecting box 409, and is discharged to the outside of the tunnel boring machine by the conveying device 3.

[0027] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A tunnel boring machine with a dust removal device, comprising a tunnel boring machine body (1), a tunnel boring machine arm (2) and a conveying device (3), characterized in that: The tunnel boring machine body (1) is provided with a housing space, a dust removal box (4) is provided in the housing space, the dust removal box (4) is provided with a dust suction port (401), a housing area for dust removal is provided in the dust removal box (4), a filter area (402) and an electric dust removal area (403) are provided in sequence in the housing area, the dust suction port (401) is communicated with the inner wall of the filter area (402), a filter screen (404) is fixedly connected to one side of the filter area (402) close to the dust suction port (401), and the electric dust removal area (403) is fixedly connected to the inner wall of the filter area (402). A plurality of dust collecting electrodes (405) are connected, and the gaps between the dust collecting electrodes (405) constitute a collecting area (406). The collecting area (406) is fixedly connected to a conductive column (407), and a plurality of conductive electrodes (408) are arranged on the conductive column (407) along the axial direction and at intervals. The bottom of the dust removal box (4) is fixedly connected to a dust collecting box (409), and the side wall of the dust collecting box (409) is fixedly connected to the inner wall of the accommodating space, and the outlet of the dust collecting box (409) is connected to the conveying device (3).

2. A tunnel boring machine with a dust removal device according to claim 1, characterized in that: The outer wall of the dust removal box (4) is provided with a fixing plate (410), and the fixing plate (410) is threadedly connected to the tunnel boring machine body (1).

3. The tunnel boring machine with a dust removal device according to claim 1, characterized in that: A suction fan (411) is provided outside the dust removal box (4), and the suction fan (411) is connected to a suction pipe (412). The suction pipe (412) is arranged outside the arm (2) of the tunnel boring machine, and one end of the suction pipe (412) faces the head of the tunnel boring machine. The suction pipe (412) has a plurality of suction pipes.

4. A tunnel boring machine with a dust removal device according to claim 3, characterized in that: The air suction pipe (412) is fixedly connected to the tunnel boring machine arm (2) via an annular fixing hoop (5).

5. The tunnel boring machine with a dust removal device according to claim 1, characterized in that: The filter screen (404) is made of polypropylene film filter material, and a conductive coating is provided on the surface of the filter screen (404).

6. The tunnel boring machine with a dust removal device according to claim 1, characterized in that: A vibrator (6) is provided inside the dust removal box (4), and a high-voltage power supply detector (7) is provided on the side of the dust removal box (4).

Images