Mining cyclone type orifice dust removal device

Abstract

The utility model relates to the technical field of mine dust removal devices, in particular to a mine cyclone type orifice dust removal device. The device comprises a blowout prevention box, the blowout prevention box comprises an upper box body and a lower box body which are communicated up and down, the top surface, the side surface and the bottom surface of the upper box body are respectively provided with a dust outlet, a first slag inlet and a slag outlet, the top of the lower box body is provided with a second slag inlet connected with the slag outlet, and the second slag inlet is provided with a partition assembly; the cyclone cylinder is located on the side of the blowout prevention box, the top, the bottom and the side face of the cyclone cylinder are provided with a negative pressure drainage opening, a dust discharging opening and an air inlet correspondingly, and the air inlet is connected with the dust outlet; the partition assembly comprises a rotating shaft and a turning plate fixedly mounted on the rotating shaft; the lower box body is provided with a slag removal opening, and a slag guide plate is arranged in the lower box body; the dust collecting box is provided with a dust cleaning opening and internally provided with a dust guide plate. The foam dust-settling device effectively solves the technical problems that in the prior art, when a foam dust-settling device is used, the humidity of a workplace is increased, the comfort of workers is reduced, and the service life of equipment is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of mine dust removal devices, in particular to a mine cyclone type orifice dust removal device. Background Art

[0002] In mining production, drilling operations, blasting, tunnel boring machine and coal mining machine operations, roof management, mineral loading and transportation and other links will generate a large amount of dust, especially the dust generated during the tunneling process of the tunnel boring machine, which cannot be reduced by ordinary dust removal fans and spray dust reduction machines. Although foam can be used to deal with dust reduction during the tunneling process of the tunnel boring machine, the mixing of foaming agent and water in the existing technology will be uneven, affecting the efficiency of foam generation.

[0003] In this regard, the patent document with authorization announcement number CN218501746U discloses a mining foam dust suppression device, which is provided with a merging cylinder, a mixing cylinder and a foaming cylinder connected in sequence from left to right in an outer shell, a liquid storage tank is provided on the side of the foaming cylinder, a water inlet pipe and an air inlet pipe are installed on the left side of the outer shell, a foaming agent is stored in the liquid storage tank, the left side of the merging cylinder is connected to the water inlet pipe, and a merging port is provided on its side wall, the merging port is connected to the liquid storage tank through a negative pressure self-priming pipe, the mixing cylinder is connected to the merging cylinder and a spiral structure is provided therein, the left end of the foaming cylinder is connected to the air inlet pipe, and the right end is connected to a distribution pipe, and the distribution pipe is connected to the bubble outlet pipe. When in use, the foaming agent and water first merge in the merging cylinder, and then enter the mixing cylinder. Under the action of the spiral structure, the two flow in a vortex shape to mix more fully, thereby generating better foam. The dust is covered and wetted and adhered by the foam, so as to reduce the dust concentration on the mining face and improve the working environment of the mining face.

[0004] However, although the foam dust suppression device can reduce the dust concentration on the mining face, the foam will inevitably increase the humidity of the workplace in the process of wrapping and settling the dust. Working in an environment with high humidity will not only reduce the working comfort of the staff, but also accelerate the rust and damage of the mining equipment. In addition, fine dust is more easily suspended in the air and diffused with the airflow due to its small particle size and light weight. It is difficult for foam to effectively capture these fine dust particles. Utility Model Content

[0005] The utility model provides a mining cyclone-type orifice dust removal device to solve the technical problem in the prior art that the foam dust removal device will increase the humidity of the workplace when in use, resulting in reduced comfort level for workers and reduced service life of the equipment.

[0006] In order to solve the above problems, the mining cyclone type orifice dust removal device provided by the utility model adopts the following technical solutions:

[0007] A cyclone-type orifice dust removal device for mining, comprising:

[0008] The anti-blowout box comprises a lower box body and an upper box body located at one end of the top surface of the lower box body, the top surface of the upper box body is provided with a dust outlet, the side surface is provided with a first slag inlet, the bottom surface is provided with a slag discharge port, the top of the lower box body is provided with a second slag inlet connected to the slag discharge port, the first slag inlet is used to be connected to the drilling port, and the second slag inlet is provided with a partition assembly;

[0009] A cyclone, which is located beside the spray prevention box, and has a negative pressure exhaust port on the top, a dust exhaust port on the bottom, an air inlet on the side of the upper end, the dust exhaust port is connected to the dust collection box, and the air inlet is connected to the dust outlet through a conveying pipeline;

[0010] A partition assembly, comprising a rotating shaft rotatably mounted on the lower box body and located at the second slag inlet, a flap fixedly mounted on the rotating shaft, the size of the flap being adapted to the size of the slag discharge outlet, and a handle being provided at one end of the rotating shaft for rotating the rotating shaft to change the angle between the flap and the horizontal plane;

[0011] The lower box body is provided with a slag cleaning port at one end away from the upper box body, and a slag guide plate is arranged obliquely from top to bottom inside the lower box body, the slag guide plate is inclined from the second slag inlet to the slag cleaning port, and the slag cleaning port is equipped with a slag cleaning door;

[0012] The dust collecting box is provided with a dust cleaning port on a side away from the upper box body, and a dust guide plate inclined from top to bottom is provided inside the dust collecting box, and the dust cleaning port is equipped with a dust cleaning door.

[0013] The beneficial effects of the mining cyclone type orifice dust removal device provided by the utility model are:

[0014] 1. By setting up a spray-proof box including an upper box and a lower box, and opening a first slag inlet on the side of the upper box, and connecting the first slag inlet with the drilling hole, the dust generated by the drilling can be directly collected to prevent the dust from being dispersed in the surrounding environment. There is no need to spray foam on the mining face, which can effectively avoid the increase of humidity in the workplace due to spraying foam, thereby improving the comfort of the staff and the service life of the equipment;

[0015] 2. When collecting the dust generated by drilling, close the slag cleaning door and the dust cleaning door, and rotate the shaft to make the flap perpendicular to the horizontal plane. The dust enters the upper box through the first slag inlet and then falls down. In the process of dust falling, large particles of slag fall directly into the lower box and move to the slag cleaning port under the action of the slag guide plate. Small particles of dust and gas are sucked into the cyclone. After the dust and gas enter the cyclone, the dust and gas are separated under the action of the cyclone. The dust settles in the dust collection box, and the gas is discharged into the gas pipeline through the negative pressure discharge port. When it is necessary to clean the slag in the lower box, rotate the shaft to make the flap parallel to the horizontal plane, so as to separate the upper box and the lower box to avoid slag falling during the slag cleaning process. Then open the slag cleaning door to clean the slag in the lower box. During the large cleaning process of the slag, there is no need to stop drilling, which can ensure the continuous progress of the drilling operation.

[0016] 3. By setting up a cyclone, the dust in the gas can be separated to prevent the dust from entering the negative pressure discharge port, thereby improving the problem of blockage of the underground negative pressure pipeline.

[0017] Through the above arrangement, the utility model effectively solves the technical problem in the prior art that the foam dust suppression device will increase the humidity in the workplace when in use, resulting in reduced comfort level for workers and reduced service life of the equipment.

[0018] Furthermore, a plurality of support members are fixedly mounted on the rotating shaft, and the top surfaces of the support members are fixedly connected to the bottom surfaces of the flaps.

[0019] Furthermore, the slag discharge port is a narrowing structure.

[0020] Furthermore, an ejector is installed on the lower box body, a nozzle of the ejector is connected to the delivery pipeline, and the ejector is used to increase the negative pressure of the air inlet.

[0021] Furthermore, a shield is installed on the side of the lower box body, and the handle is installed on the side of the shield away from the lower box body.

[0022] Furthermore, the handle is a butterfly valve handle.

[0023] Furthermore, a baffle is provided in the upper box body, the baffle comprising a vertical section extending downward from the top surface of the upper box body and parallel to the first slag inlet, and an inclined section connected to the lower end of the vertical section and extending obliquely downward, the vertical section is located between the first slag inlet and the dust outlet, and the inclined section extends toward a side away from the first slag inlet.

[0024] Furthermore, a bearing matching the rotating shaft is arranged on the lower box body, and an end of the rotating shaft is installed in the bearing.

[0025] Further, a reserved gas drainage port is provided on the top surface of the upper box body.

[0026] Further, a flushing port is provided on the top surface of the cyclone. Description of the Drawings

[0027] By referring to the accompanying drawings and reading the following detailed description, the above and other objects, features, and advantages of the exemplary embodiments of the present utility model will become readily understandable. In the drawings, several embodiments of the present utility model are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0028] Figure 1 is a schematic structural diagram of the mine cyclone orifice dust removal device provided by the present utility model;

[0029] Figure 2 is a cross-section of the blowout prevention box provided by the present utility model Figure 1 ;

[0030] Figure 3 is a cross-section of the blowout prevention box provided by the present utility model Figure 2 ;

[0031] Figure 4 is a cross-section of the blowout prevention box provided by the present utility model Figure 3 ;

[0032] Figure 5 is a cross-sectional view of the cyclone provided by the present utility model;

[0033] Figure 6 is a schematic structural diagram of the partition assembly provided by the present utility model.

[0034] Description of the Reference Numerals:

[0035] 1. Lower box body; 2. Upper box body; 3. First slag inlet; 4. Dust outlet; 5. Slag discharge port; 6. Cyclone; 7. Negative pressure drainage port; 8. Dust collection box; 9. Air inlet; 10. Conveyor pipe; 11. Rotating shaft; 12. Flap; 13. Butterfly valve handle; 14. Slag guide plate; 15. Slag cleaning door; 16. Dust guide plate; 17. Dust cleaning door; 18. Support member; 19. Ejector; 20. Protective cover; 21. Vertical section; 22. Inclined section; 23. Bearing; 24. Reserved gas drainage port; 25. Flushing port; 26. Cover plate; 27. Base; 28. Handle. Detailed Embodiments

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present utility model.

[0037] It should be noted that the main concept of the mine cyclone orifice dust removal device provided by the present utility model is as follows: by opening a first slag inlet on the side of the upper part of the anti-spray box and connecting the first slag inlet to the drilling orifice, the dust generated by the drilling can be collected through the anti-spray box, avoiding the situation where dust is dispersed in the surrounding environment, and there is no need to spray foam on the mining face, thereby effectively solving the problem of increased humidity in the working place caused by spraying foam, so as to improve the comfort of the staff and the service life of the equipment.

[0038] After introducing the basic principle of the present utility model, the following specifically introduces various non-limiting implementation manners of the present utility model. The number of any element in the accompanying drawings is for illustration rather than limitation, and any naming is only for distinction and does not have any limiting meaning.

[0039] The following refers to several representative implementation manners of the present utility model to elaborate in detail the principle and spirit of the present utility model.

[0040] Embodiment 1 of the mine cyclone orifice dust removal device provided by the present utility model:

[0041] As Figures 1 to 6 shown, the mine cyclone orifice dust removal device includes a base 27, and an anti-spray box, a cyclone cylinder 6 and a dust collection box 8 are installed on the base 27, and a partition component is installed in the anti-spray box.

[0042] Regarding the anti-spray box. The anti-spray box includes a lower box body 1, the left end of the top surface of the lower box body 1 is provided with an upper box body 2 communicating with the lower box body 1, the top surface of the upper box body 2 is provided with a dust outlet 4, the rear side is provided with a first slag inlet 3, the front side is provided with a reserved slag inlet, the bottom surface is provided with a slag discharge port 5, the reserved slag inlet is equipped with a cover plate 26, the top surface of the lower box body 1 is provided with a second slag inlet, the first slag inlet 3 is connected to the drilling orifice, the second slag inlet is connected to the slag discharge port 5, and a partition component is provided at the second slag inlet.

[0043] Specifically, the slag discharge port 5 is a reduced-diameter structure.

[0044] Regarding the cyclone cylinder 6. The cyclone cylinder 6 is arranged on the left side of the anti-spray box, and its top is provided with a negative pressure extraction port 7, the bottom is provided with a dust discharge port, the side surface of the upper end is provided with an air inlet 9, the bottom of the dust discharge port is provided with a dust collection box 8 communicated with it, and the air inlet 9 is connected to the dust outlet 4 through a conveying pipeline 10.

[0045] Specifically, a baffle is provided inside the upper box body 2. The baffle includes a vertical section 21 extending downward from the top surface of the upper box body 2 and parallel to the first slag inlet 3, and an inclined section 22 connected to the lower end of the vertical section 21 and extending obliquely downward. The vertical section 21 is located between the first slag inlet 3 and the dust outlet 4, and the inclined section 22 extends toward the side away from the first slag inlet 3. The baffle is used to prevent dust from splashing from the first slag inlet 3 into the anti-spray box and then to the dust outlet 4 and directly discharging into the conveying pipeline 10.

[0046] Regarding the partition assembly. The partition assembly includes a rotating shaft 11 rotatably installed on the upper part of the lower box body 1 and located at the second slag inlet. A flap 12 is fixedly installed on the rotating shaft 11. The size of the flap 12 is adapted to the size of the slag discharge port 5. One end of the rotating shaft 11 is provided with a handle for rotating the rotating shaft 11 to change the angle between the flap 12 and the horizontal plane, so as to realize the partition or connection between the slag discharge port 5 and the second slag inlet.

[0047] Specifically, bearings 23 matching the rotating shaft 11 are installed on both the front and rear sides of the lower box body 1. The two ends of the rotating shaft 11 are respectively installed in the two bearings 23. A plurality of spaced support members 18 are fixedly installed on the rotating shaft 11. The top surface of the support member 18 is fixedly connected to the bottom surface of the flap 12.

[0048] Specifically, the handle is a butterfly valve handle 13. Butterfly valve handles 13 are installed on the front and rear sides of the lower box body 1.

[0049] In addition, a slag cleaning port is opened on the right side of the lower box body 1. A slag cleaning door 15 is equipped with the slag cleaning port. A slag guiding plate 14 is arranged obliquely downward from top to bottom inside the lower box body 1. The upper end of the slag guiding plate 14 is located below the second slag inlet, and its lower end is located at the bottom of the slag cleaning port; a dust cleaning port is provided on the left side of the dust collection box 8. A dust cleaning door 17 is equipped with the dust cleaning port. A dust guiding plate 16 is arranged obliquely downward from top to bottom inside the dust collection box 8; an ejector 19 is also installed on the top surface of the lower box body 1. The nozzle of the ejector 19 is connected to the conveying pipeline 10 to adjust the air pressure and increase the negative pressure of the air inlet 9; a reserved gas drainage port 24 is also provided on the top surface of the upper box body 2. A flushing port 25 is provided on the top surface of the cyclone 6; handles 28 are installed on the lower box body 1, the slag cleaning door 15 and the dust cleaning door 17.

[0050] The working principle of the mine-used cyclone orifice dust removal device provided by the present utility model is as follows: First, close the slag cleaning door 15 and the dust cleaning door 17. The dust generated during drilling sequentially enters the blowout prevention box through the drilling orifice and the first slag inlet 3. Rotate the butterfly valve handle 13 to make the flap 12 perpendicular to the horizontal plane. After the dust enters the upper box body 2, it falls under the action of gravity. During the falling process of the dust, large-particle slag bodies directly fall into the lower box body 1 and move towards the slag cleaning orifice under the action of the slag guiding plate 14. Small-particle dust bodies and gas are sucked into the cyclone cylinder 6. After the dust bodies and gas enter the cyclone cylinder 6, they are separated under the action of the swirl. The dust bodies precipitate into the dust collection box 8 and move towards the dust cleaning orifice under the action of the dust guiding plate 16. The gas is discharged into the gas pipeline through the negative pressure extraction port 7. When it is necessary to clean the slag in the lower box body 1 and the dust in the dust collection box 8, rotate the rotating shaft 11 to make the flap 12 parallel to the horizontal plane, so as to separate the upper box body 2 from the lower box body 1 and prevent slag from falling during the slag cleaning process. Then, open the slag cleaning door 15 to clean the slag in the lower box body 1, and open the dust cleaning door 17 to clean the dust in the dust collection box 8.

[0051] Embodiment 2 of the mine-used cyclone orifice dust removal device provided by the present utility model:

[0052] The main difference between it and Embodiment 1 is:

[0053] In Embodiment 1, butterfly valve handles are installed on both the front and rear sides of the lower box body.

[0054] In this embodiment, a butterfly valve handle is installed on the front side or the rear side of the lower box body.

[0055] Embodiment 3 of the mine-used cyclone orifice dust removal device provided by the present utility model:

[0056] The main difference between it and Embodiment 1 is:

[0057] In Embodiment 1, the slag discharge port is a reducing diameter structure.

[0058] In this embodiment, the slag discharge port is an equal diameter structure.

[0059] According to the above description in this specification, those skilled in the art can also understand the following terms used, such as the terms indicating orientation or position relationship, such as "upper", "lower", "front", "rear", "left", "right", "width", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or position relationship shown in the drawings of this specification. It is only for the purpose of facilitating the description of the solution of the present utility model and simplifying the description, rather than explicitly or implicitly indicating that the device or component involved must have the specific orientation, be constructed and operate in the specific orientation. Therefore, the above orientation or position relationship terms cannot be understood or interpreted as a limitation to the solution of the present utility model.

[0060] In addition, in the description of this specification, the meaning of "a plurality of" is at least two, such as two, three or more, etc., unless otherwise specifically defined.

Claims

1. A cyclone-type orifice dust removal device for mining, characterized in that: include: The anti-blowout box comprises a lower box body and an upper box body located at one end of the top surface of the lower box body, the top surface of the upper box body is provided with a dust outlet, the side surface is provided with a first slag inlet, the bottom surface is provided with a slag discharge port, the top of the lower box body is provided with a second slag inlet connected to the slag discharge port, the first slag inlet is used to be connected to the drilling port, and the second slag inlet is provided with a partition assembly; A cyclone, which is located beside the spray prevention box, and has a negative pressure exhaust port on the top, a dust exhaust port on the bottom, an air inlet on the side of the upper end, the dust exhaust port is connected to the dust collection box, and the air inlet is connected to the dust outlet through a conveying pipeline; A partition assembly, comprising a rotating shaft rotatably mounted on the lower box body and located at the second slag inlet, a flap fixedly mounted on the rotating shaft, the size of the flap matching the size of the slag discharge port, a handle provided at one end of the rotating shaft for rotating the rotating shaft to change the angle between the flap and the horizontal plane; a slag cleaning port is provided at one end of the lower box body away from the upper box body, and a slag guide plate arranged obliquely from top to bottom is provided inside the lower box body, the slag guide plate is inclined from the second slag inlet to the slag cleaning port, and the slag cleaning port is equipped with a slag cleaning door; The dust collecting box is provided with a dust cleaning port on one side away from the upper box body, and a dust guide plate inclined from top to bottom is provided inside the dust collecting box, and the dust cleaning port is equipped with a dust cleaning door.

2. The mining cyclone-type orifice dust removal device according to claim 1, characterized in that: A plurality of support members are fixedly mounted on the rotating shaft, and the top surfaces of the support members are fixedly connected to the bottom surfaces of the flaps.

3. The mining cyclone-type orifice dust removal device according to claim 1 or 2, characterized in that: The slag discharge port is a reduced diameter structure.

4. The mining cyclone-type orifice dust removal device according to claim 1 or 2, characterized in that: An ejector is installed on the lower box body, and a nozzle of the ejector is connected to the delivery pipeline. The ejector is used to increase the negative pressure of the air inlet.

5. The mining cyclone-type orifice dust removal device according to claim 1 or 2, characterized in that: A shield is installed on the side of the lower box body, and the handle is installed on the side of the shield away from the lower box body.

6. The mining cyclone-type orifice dust removal device according to claim 5, characterized in that: The handle is a butterfly valve handle.

7. The mining cyclone-type orifice dust removal device according to claim 1 or 2, characterized in that: A baffle is provided in the upper box body, and the baffle includes a vertical section extending downward from the top surface of the upper box body and parallel to the first slag inlet, and an inclined section connected to the lower end of the vertical section and extending obliquely downward, the vertical section is located between the first slag inlet and the dust outlet, and the inclined section extends toward a side away from the first slag inlet.

8. The mining cyclone-type orifice dust removal device according to claim 1 or 2, characterized in that: The lower box body is provided with a bearing matching the rotating shaft, and the end of the rotating shaft is installed in the bearing.

9. The mining cyclone-type orifice dust removal device according to claim 1 or 2, characterized in that: The top surface of the upper box body is provided with a reserved gas extraction port.

10. The mining cyclone-type orifice dust removal device according to claim 1 or 2, characterized in that: The top surface of the cyclone is provided with a flushing port.

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