Metal mine underground ventilation device

Abstract

The utility model relates to the technical field of ventilation, and provides a metal mine underground ventilation device which comprises a ventilation pipe (1), an inner pipe (2) is arranged in the ventilation pipe (1) in a sliding mode, an air draft mechanism (3) is arranged in the inner pipe (2), a lifting mechanism (4) is arranged between the inner pipe (2) and the ventilation pipe (1), and a spraying mechanism (5) and a filtering mechanism (6) are further arranged in the ventilation pipe (1). The lifting mechanism (4) comprises a mounting plate (41) fixedly connected to the side wall of the inner pipe (2) and a connecting plate (42) fixedly connected to the side wall of the ventilation pipe (1), a first driving motor (43) is fixedly mounted on the mounting plate (41), the output end of the first driving motor (43) is fixedly connected with a reciprocating screw rod (44), and the reciprocating screw rod (44) penetrates through and is in threaded connection with the connecting plate (42); the mine air purification device can purify and discharge air containing metal dust at different heights in a mine, and the air purification effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of ventilation technology, and more specifically, to a ventilation device for underground metal mines. Background Technology

[0002] Existing underground mine ventilation systems typically only have intake and exhaust devices. However, the exhaust gas generated in underground metal mines contains a large amount of metal dust, and direct discharge of such gas would cause serious environmental pollution, which does not meet the requirements of environmental protection departments.

[0003] Patent document CN222823273U discloses a ventilation device for underground metal mines. This device facilitates the filtration of dust in the air discharged through the exhaust pipe, thereby improving the ventilation effect and practicality. A first door is rotatably installed on the outer wall of the exhaust pipe, and a collection trough is connected to the bottom of the exhaust pipe. A second door is rotatably installed on the outer wall of the collection trough. A through hole is opened at the bottom of the exhaust pipe, and a partition is fixedly installed at the top of the exhaust pipe. A bracket is obliquely fixedly installed at the bottom of the partition, and a first hole is opened through the middle area of ​​the bracket. A filter screen is slidably installed inside the bracket. A spray mechanism is provided at the top of the exhaust pipe.

[0004] Existing ventilation devices are unable to purify and expel air containing metal dust at different heights within a mine. Utility Model Content

[0005] To overcome the shortcomings mentioned above, this utility model aims to provide a ventilation device for underground metal mines, which can purify and discharge air containing metal dust at different heights within the mine, thereby improving the air purification effect.

[0006] A ventilation device for underground metal mines includes a ventilation pipe with an inner pipe sliding inside it. An exhaust mechanism is installed inside the inner pipe, and a lifting mechanism is provided between the inner pipe and the ventilation pipe. A spray mechanism and a filter mechanism are also provided inside the ventilation pipe. The lifting mechanism includes a mounting plate fixed to the side wall of the inner pipe and a connecting plate fixed to the side wall of the ventilation pipe. A first drive motor is fixedly mounted on the mounting plate, and a reciprocating lead screw is fixedly connected to the output end of the first drive motor. The reciprocating lead screw passes through and is screwed to the connecting plate.

[0007] Furthermore, the lifting mechanism also includes a protective box fixed to the connecting plate.

[0008] Furthermore, a bellows is fixedly connected to the mounting plate, and the other end of the bellows is fixedly connected to the connecting plate. The bellows encloses the first drive motor and the reciprocating lead screw within it.

[0009] Furthermore, the exhaust mechanism includes a mounting bracket fixed inside the inner tube, a protective cover fixed to the lower end face of the mounting bracket, a shaft passing through and rotatably connected to the protective cover, fan blades fixed to the peripheral side wall of the shaft, a second drive motor fixedly mounted on the lower end face of the mounting bracket, and one end of the shaft fixedly connected to the output end of the second drive motor.

[0010] Furthermore, the second drive motor is located inside the protective cover.

[0011] Furthermore, the ventilation duct is L-shaped, and the horizontal section of the ventilation duct has an opening located below the spray mechanism.

[0012] Furthermore, the filtration mechanism includes a connecting pipe fixed to and communicating with the ventilation pipe, the lower end of the connecting pipe being detachably connected to a collection box, and the bottom of the collection box being connected to a drain pipe.

[0013] Furthermore, a filter screen is fixed inside the collection box.

[0014] Furthermore, the exhaust end of the ventilation duct is provided with a shielding member, which is fixed to the inner wall of the ventilation duct at equal intervals.

[0015] Furthermore, the shielding element is bent.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] In this invention, the output of the first drive motor causes the reciprocating screw to rotate. The reciprocating screw, in conjunction with the connecting plate, causes the inner tube to move back and forth in the vertical direction, thereby changing the height of the free end of the inner tube. This facilitates the extraction of air containing metal dust at different heights in the mine, thus improving the extraction efficiency. Subsequently, in conjunction with the spray mechanism, the air containing metal dust is purified and discharged, thereby improving the air purification effect. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a schematic diagram of the overall structure of an underground ventilation device for a metal mine.

[0020] Figure 2 This is a partial sectional view of the structure;

[0021] Figure 3 This is a cross-sectional view of the ventilation duct.

[0022] In the diagram: 1. Ventilation duct; 2. Inner duct; 3. Exhaust mechanism; 31. Mounting bracket; 32. Protective cover; 33. Shaft; 34. Fan blade; 35. Second drive motor; 4. Lifting mechanism; 41. Mounting plate; 42. Connecting plate; 43. First drive motor; 44. Reciprocating screw; 45. Protective box; 46. Corrugated pipe; 5. Spraying mechanism; 51. Water pump; 52. Water supply pipe; 53. Water distribution pipe; 54. Nozzle; 6. Filtration mechanism; 61. Connecting pipe; 62. Collection box; 63. Filter screen; 64. Drainage pipe; 7. Shielding component; 8. Fixing bracket. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Specific implementation examples:

[0025] like Figure 1-3 As shown, a ventilation device for underground metal mines includes a ventilation pipe 1, which is L-shaped. An inner pipe 2 slides within the vertical section of the ventilation pipe 1. An exhaust mechanism 3 is installed inside the inner pipe 2 to extract dust-laden air from the metal mine. A lifting mechanism 4 is installed between the side wall of the inner pipe 2 and the ventilation pipe 1, allowing the inner pipe 2 to reciprocate within the ventilation pipe 1. The end of the vertical section of the ventilation pipe 1 is used to discharge purified air. A spray mechanism 5 and a filter mechanism 6 are installed on the horizontal section of the ventilation pipe 1. The spray mechanism 5 is used to purify the dust-laden air drawn into the inner pipe 2 and the ventilation pipe 1 by the exhaust mechanism 3, and then discharges it from the other end of the ventilation pipe 1. The filter mechanism 6 is located directly below the spray mechanism 5 and is used to collect a mixture of dust and water and filter solids. The water is discharged and reused after further purification. The lifting mechanism 4 includes a mounting plate 41 fixedly connected to the side wall of the inner tube 2 and a connecting plate 42 fixedly connected to the side wall of the ventilation pipe 1. A first drive motor 43 is fixedly installed on the mounting plate 41. A reciprocating screw 44 is fixedly connected to the output end of the first drive motor 43. The reciprocating screw 44 passes through and is threadedly connected to the connecting plate 42. The output of the first drive motor 43 causes the reciprocating screw 44 to rotate. The reciprocating screw 44 cooperates with the connecting plate 42 to make the inner tube 2 move back and forth in the vertical direction, thereby changing the height of the free end port of the inner tube 2. This facilitates the extraction of air containing metal dust at different heights in the mine, thereby improving the extraction efficiency. Then, in conjunction with the spray mechanism 5, the air containing metal dust is purified and discharged, thereby improving the air purification effect.

[0026] like Figure 1-3 As shown, the lifting mechanism 4 also includes a protective box 45 fixedly connected to the connecting plate 42. The protective box 45 covers and protects the rod body of the reciprocating lead screw 44 located above the connecting plate 42. A bellows 46 is fixedly connected to the mounting plate 41. The other end of the bellows 46 is fixedly connected to the connecting plate 42. The bellows 46 covers the rod body of the first drive motor 43 and the reciprocating lead screw 44 located between the connecting plate 42 and the mounting plate 41. By setting the protective box 45 and the bellows 46, the lifting mechanism 4 is not affected by dust, ensuring the normal use of the lifting mechanism 4.

[0027] like Figure 1-3 As shown, the exhaust mechanism 3 includes a mounting bracket 31 fixedly connected inside the inner tube 2. A protective cover 32 is fixedly connected to the lower end face of the mounting bracket 31. A shaft 33 is rotatably connected through the protective cover 32. Fan blades 34 are fixedly connected to the peripheral side wall of the shaft 33. A second drive motor 35 is fixedly mounted on the lower end face of the mounting bracket 31 and located inside the protective cover 32. One end of the shaft 33 located inside the protective cover 32 is fixedly connected to the output end of the second drive motor 35. The output of the second drive motor 35 causes the shaft 33 to rotate, which drives the fan blades 34 to rotate, forming an airflow that draws dust-laden air into the inner tube 2 and the ventilation duct 1.

[0028] like Figure 1-3 As shown, the spray mechanism 5 includes a water pump 51 installed on the ventilation pipe 1. The input end of the water pump 51 is connected to an external water source through a hose, and the output end of the water pump 51 is connected to a water distribution pipe 53 fixedly connected inside the ventilation pipe 1 through a water supply pipe 52. The water supply pipe 52 passes through the ventilation pipe 1, and multiple nozzles 54 are connected at equal intervals on the water distribution pipe 53. The nozzles 54 are atomizing nozzles. The water pump 51 draws water from the external water source into the water supply pipe 52 and the water distribution pipe 53, and finally sprays it out from the nozzles 54 to suppress the dust in the dust-laden gas drawn into the ventilation pipe 1. The mixture after dust suppression falls into the filter mechanism 6 in the lower opening, and then the purified air is discharged from the exhaust end of the ventilation pipe 1 (the exhaust end is the end of the ventilation pipe 1 away from the inner pipe 2).

[0029] like Figure 1-3As shown, the horizontal section of the ventilation duct 1 has an opening below the spray mechanism 5. The filter mechanism 6 is located below the opening. The filter mechanism 6 includes a connecting pipe 61 fixedly connected to and communicating with the ventilation duct 1. The lower end of the connecting pipe 61 is detachably connected to a collection box 62 by bolts. A filter screen 63 is fixedly connected inside the collection box 62. The bottom of the collection box 62 is connected to a drain pipe 64, which is connected to an external water storage container. The spray mechanism 5 causes dust in the dusty gas to fall into the connecting pipe 61 and onto the filter screen 63. The filter screen 63 filters the solids, and the water is discharged into the bottom of the collection box 62 and then discharged through the drain pipe 64 for collection, awaiting further purification of the water. Since the collection box 62 and the connecting pipe 61 are detachably connected, the collection box 62 can be removed periodically to clean the filter screen 63.

[0030] like Figure 1-3 As shown, the exhaust end of the ventilation pipe 1 is provided with a shielding member 7. The shielding members 7 are fixedly connected to the inner wall of the ventilation pipe 1 at equal intervals. The shielding members 7 are bent, and the tip of the shielding member 7 is facing the opening of the adjacent shielding member 7. The two adjacent shielding members 7 do not contact each other. The shielding members 7 are provided to shield the water mist generated by the spraying mechanism 5, while not affecting the exhaust of the purified air, thus preventing a large amount of water mist from entering the mine and causing mud.

[0031] like Figure 1-3 As shown, a fixing frame 8 is fixedly connected to the upper end face of the ventilation pipe 1. The fixing frame 8 has a pre-drilled hole for use with fixing bolts to install and fix the ventilation pipe 1 to the inner wall of the mine.

[0032] The first drive motor 43, the second drive motor 35, and the water pump are all electrically connected to an external power source and to a control unit (not shown in the figure).

[0033] The working principle of a ventilation device for underground metal mines in this embodiment is as follows: the first drive motor 43 outputs to rotate the reciprocating screw 44. The reciprocating screw 44, in conjunction with the connecting plate 42, causes the inner tube 2 to move back and forth in the vertical direction, thereby changing the height of the free end of the inner tube 2. This facilitates the extraction of air containing metal dust at different heights in the mine, thereby improving the extraction efficiency. Then, in conjunction with the spray mechanism 5, the air containing metal dust is purified and discharged, thereby improving the air purification effect.

[0034] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An underground mine metal mine ventilation device, characterized by: The system includes a ventilation duct (1), an inner tube (2) that slides inside the ventilation duct (1), an exhaust mechanism (3) that is installed inside the inner tube (2), a lifting mechanism (4) that is installed between the inner tube (2) and the ventilation duct (1), and a spray mechanism (5) and a filter mechanism (6) that are also installed inside the ventilation duct (1). The lifting mechanism (4) includes a mounting plate (41) fixed to the side wall of the inner tube (2) and a connecting plate (42) fixed to the side wall of the ventilation duct (1). A first drive motor (43) is fixedly installed on the mounting plate (41). A reciprocating screw (44) is fixedly connected to the output end of the first drive motor (43). The reciprocating screw (44) passes through and is screwed to the connecting plate (42).

2. A metal mine underground ventilation device according to claim 1, characterized in that: The lifting mechanism (4) also includes a protective box (45) fixed to the connecting plate (42).

3. A metal mine underground ventilation device according to claim 2, characterized in that: A corrugated pipe (46) is fixedly connected to the mounting plate (41), and the other end of the corrugated pipe (46) is fixedly connected to the connecting plate (42). The corrugated pipe (46) encloses the first drive motor (43) and the reciprocating screw (44) within it.

4. The metal mine underground ventilation device according to claim 1, characterized in that: The exhaust mechanism (3) includes a mounting bracket (31) fixedly connected to the inner tube (2). A protective cover (32) is fixedly connected to the lower end face of the mounting bracket (31). A shaft (33) is rotatably connected through the protective cover (32). Fan blades are fixedly connected to the peripheral side wall of the shaft (33). A second drive motor (35) is fixedly installed on the lower end face of the mounting bracket (31). One end of the shaft (33) is fixedly connected to the output end of the second drive motor (35).

5. A metal mine underground ventilation device according to claim 4, characterized in that: The second drive motor (35) is located inside the protective cover (32).

6. A metal mine underground ventilation device according to claim 1, characterized in that: The ventilation pipe (1) is L-shaped, and the horizontal section of the ventilation pipe (1) has an opening located below the spray mechanism (5).

7. A metal mine underground ventilation device according to claim 6, characterized in that: The filtration mechanism (6) includes a connecting pipe (61) fixed to and connected to the ventilation pipe (1), the lower end of the connecting pipe (61) is detachably connected to a collection box (62), and the bottom of the collection box (62) is connected to a drain pipe (64).

8. A metal mine underground ventilation device according to claim 7, characterized in that: A filter screen (63) is fixed inside the collection box (62).

9. The metal mine underground ventilation device according to claim 1, characterized in that: The exhaust end of the ventilation pipe (1) is provided with a shield (7), and the shield (7) is fixed to the inner wall of the ventilation pipe (1) at equal intervals.

10. A metal mine underground ventilation device according to claim 9, characterized in that: The shielding element (7) is bent.

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