Ventilation device for gas control

Abstract

The utility model discloses a ventilation device for gas control, and belongs to the technical field of gas control. A ventilation device for gas control comprises a mounting plate anchored to the top of a mine, a suction fan is fixed to the lower end of the mounting plate, an air suction pipe and an exhaust pipe are arranged on the suction fan, and a filter screen is fixed to one end of the air suction pipe; a cleaning mechanism is arranged on the air suction pipe and comprises a fixing frame fixed to the air suction pipe, a connecting plate capable of ascending and descending is arranged on the fixing frame, a brush capable of rotating is arranged on the connecting plate, and the brush can act on the surface of the filter screen when ascending and descending, so that particulate matter adhering to the surface of the filter screen can be swept off; the surface of the filter screen is prevented from being blocked due to mass accumulation of particulate matters, and the ventilation effect is not influenced.

Description

Technical Field

[0001] The utility model belongs to the technical field of gas management, and in particular relates to a ventilation device for gas management. Background Art

[0002] In the prevention and control process of coal mines, gas control is a very important part. Gas is a colorless, odorless gas that is difficult to dissolve in water, does not support combustion and cannot sustain breathing. When the gas concentration in the air reaches a certain concentration range, it is easy to explode. Therefore, in the process of coal mining, it is often necessary to install ventilation devices in the mine caves to use the ventilation devices to discharge the gas in the mine caves in time to avoid excessive gas concentration in the mine caves.

[0003] In order to prevent larger particles in the mine from being sucked into the suction pipe and entering the suction fan, a filter is usually set at the end of the suction pipe to intercept and block some larger particles. However, the filter will be blocked over time, affecting the ventilation effect. For this reason, a ventilation device for gas control is proposed. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a ventilation device for gas management, which solves the problems in the prior art.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] A ventilation device for gas treatment comprises a mounting plate anchored on the top of a mine cave, a suction fan is fixed at the lower end of the mounting plate, a suction pipe and an exhaust pipe are arranged on the suction fan, and a filter is fixed at one end of the suction pipe;

[0007] The suction pipe is provided with a cleaning mechanism, which includes a fixing frame fixed on the suction pipe, a lifting and lowering connecting plate is provided on the fixing frame, and a rotatable brush is provided on the connecting plate, and the brush can act on the surface of the filter when it is lifted and lowered.

[0008] Furthermore, two fifth fixing plates are arranged on the connecting plate, and the brush comprises a center rod rotatably connected to the fifth fixing plate, a gear is fixed on the center rod, and a rack capable of meshing with the gear is fixed on the fixing frame.

[0009] Furthermore, the fixing frame is provided with a collar matched with the air intake pipe, the collar is provided with a second threaded hole, a bolt is fitted in the second threaded hole, and the end of the bolt can press against the air intake pipe.

[0010] Furthermore, a third fixing plate slidably connected to the fixing frame in the vertical direction is provided on one side of the connecting plate, two fourth fixing plates are provided on the fixing frame, a second screw rod capable of rotating is provided between the two fourth fixing plates, and the second screw rod passes through the third fixing plate in the vertical direction and is threadedly connected thereto.

[0011] Furthermore, the thread lead angle of the second screw is smaller than the equivalent friction angle.

[0012] Furthermore, a hose is fixed on the exhaust pipe, and the hose can be laid on the ground of the mine and extend to the outside of the mine.

[0013] Furthermore, the position of the suction fan in the horizontal direction is adjustable.

[0014] Furthermore, a first fixing plate is fixed to the upper end of the suction fan, and the first fixing plate is slidably connected to the mounting plate in the horizontal direction. Two second fixing plates are provided at the lower end of the mounting plate, and a rotatable first screw rod is provided between the two second fixing plates. The first screw rod passes through the first fixing plate and is threadedly connected thereto.

[0015] Furthermore, the thread lead angle of the first screw is smaller than the equivalent friction angle.

[0016] Furthermore, a circular flange is provided on one side of the filter screen, and the flange cooperates with the outer circle of the intake pipe. A first threaded hole is provided on the flange, and a bolt is installed in the first threaded hole, and the end of the bolt can press against the intake pipe.

[0017] Beneficial effects of the utility model:

[0018] 1. A filter is set at one end of the intake pipe to collect the inhaled gas, and a cleaning mechanism is set on the intake pipe. A connecting plate that can be raised and lowered is set in the cleaning mechanism, and a rotatable brush is set on the connecting plate. The brush rotates while being raised and lowered and acts on the surface of the filter, thereby sweeping away the particles adhering to the surface of the filter to prevent the particles from accumulating in large quantities and blocking the surface of the filter, which affects the ventilation effect.

[0019] 2. By setting the suction fan to be adjustable in horizontal position, the purpose of adjusting the gas suction position can be achieved, thereby improving the treatment range and effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 It is a schematic diagram of the filter structure of the utility model;

[0023] Figure 3 It is a schematic diagram of the cleaning mechanism structure of the utility model;

[0024] Figure 4 It is a schematic diagram of the fixing frame structure of the utility model;

[0025] Figure 5 It is a schematic diagram of the connecting plate structure of the utility model. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in 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.

[0027] like Figure 1 As shown, a ventilation device for gas treatment includes a mounting plate 1, which is anchored to the top of a mine cave by means of expansion screws, a suction fan 2 is arranged at the lower end of the mounting plate 1, and a suction pipe 3 and an exhaust pipe 4 are arranged on both sides of the suction fan 2. Driven by the suction fan 2, the suction pipe 3 can suck the gas in the mine cave and discharge it from the exhaust pipe 4 to achieve the effect of gas treatment; and a hose 5 is fixed to the exhaust pipe 4, which can be laid on the ground of the mine cave and extend to the outside of the mine cave. The hose 5 laid on the ground can relieve the anchoring pressure between the mounting plate 1 and the top of the mine cave;

[0028] In this embodiment, a first fixing plate 21 is fixed to the upper end of the suction fan 2, and the first fixing plate 21 is slidably connected to the mounting plate 1 in the horizontal direction. Two second fixing plates 11 are provided at the lower end of the mounting plate 1, and a first screw rod 6 is rotatably connected between the two second fixing plates 11. The first screw rod 6 passes through the first fixing plate 21 and is threadedly connected thereto. By providing a motor on one of the second fixing plates 11 to drive the first screw rod 6 to rotate, the first fixing plate 21 can be driven to slide, so that the position of the suction fan 2 in the horizontal direction can be adjusted, so as to achieve the purpose of adjusting the gas suction position and improve the treatment range and effect.

[0029] Furthermore, the first screw rod 6 needs to be self-locking, that is, the thread lead angle of the first screw rod 6 is smaller than the equivalent friction angle, so as to ensure that the suction fan 2 remains stable after the position is adjusted in the horizontal direction.

[0030] Of course, the method of driving the first fixed plate 21 to slide horizontally at the lower end of the mounting plate 1 includes but is not limited to the first screw rod 6 in this embodiment. In some embodiments, the first fixed plate 21 can be directly driven to slide by arranging linear driving components such as a cylinder and a telescopic rod at the lower end of the mounting plate 1, and the horizontal position of the suction fan 2 can also be adjusted.

[0031] A filter screen 7 is fixed at the end of the air intake pipe 3. Under the suction force of the air intake fan 2, the gas passes through the filter screen 7 to filter out larger particles and is discharged from the exhaust pipe 4.

[0032] In this embodiment, a circular flange 71 is provided on one side of the filter screen 7, and the flange 71 cooperates with the outer circle of the intake pipe 3. A first threaded hole 72 is opened on the flange 71, and a bolt is installed in the first threaded hole 72. By tightening the bolt, the end of the bolt is pressed against the intake pipe 3, thereby realizing a detachable fixed connection between the filter screen 7 and the intake pipe 3.

[0033] A cleaning mechanism 8 is installed on the air intake pipe 3, and the cleaning mechanism 8 can clean the particles adhering to the surface of the filter screen 7 to prevent the filter screen 7 from being blocked and affecting the gas treatment effect;

[0034] like Figure 3 As shown, the cleaning mechanism 8 includes a fixing frame 81 fixedly connected to the air intake pipe 3, a lifting connecting plate 82 is provided on the fixing frame 81, a rotatable brush 83 is provided on the connecting plate 82, and the brush 83 is lowered to act on the surface of the filter screen 7, so that the particles on the entire surface of the filter screen 7 can be swept off;

[0035] In this embodiment, if Figure 4 As shown, a collar 811 is provided on the fixing frame 8, and the collar 811 is sleeved on the intake pipe 3 and cooperates therewith. A second threaded hole 812 is opened on the collar 811, and a bolt is installed in the threaded hole 812. The end of the bolt is tightened to press against the intake pipe 3, thereby realizing a detachable fixed connection between the collar 811 (fixing frame 81) and the intake pipe 3; and in some embodiments, the collar 811 can also be directly welded and fixed to the intake pipe 3, but it is not easy to disassemble, which is obviously not as good as the solution of this embodiment.

[0036] like Figure 5As shown, a third fixing plate 821 is provided on one side of the connecting plate 82, and the third fixing plate 821 is slidably connected to the fixing frame 81 in the vertical direction. Two fourth fixing plates 813 are provided on the fixing frame 81, and a second screw rod 86 is rotatably connected between the two fourth fixing plates 813. The second screw rod 86 penetrates the third fixing plate 821 along the vertical direction and is threadedly connected thereto. By arranging a motor on one of the fourth fixing plates 813 to drive the second screw rod 86 to rotate, the lifting and lowering of the connecting plate 82 can be realized; and the second screw rod 86 needs to have self-locking property, that is, the thread lead angle of the second screw rod 86 is smaller than the equivalent friction angle;

[0037] In some embodiments, the connecting plate 82 may be directly driven to rise and fall by arranging linear drive components such as a cylinder and a telescopic rod on the fixing frame 81 .

[0038] Two fifth fixing plates 822 are arranged on the connecting plate 82, and the brush 83 includes a central rod, on which a plurality of bristles are arranged, and the central rod is rotatably connected to the first fixing plate 822, a gear 84 is fixed to one end of the central rod, and a rack 85 is fixed to one side of the fixing frame 81, and the rack 85 and the gear 84 are meshed with each other. During the lifting and lowering process of the connecting plate 82, the brush 83 can simultaneously rotate around the central rod, thereby improving the cleaning effect on the surface of the filter screen 7;

[0039] Of course, in some embodiments, a motor may be directly provided on the connecting plate 82 to drive the center rod to rotate, and the brush 83 may be lifted and lowered while rotating to improve the cleaning effect.

[0040] Working principle:

[0041] By setting a filter screen 7 at one end of the air intake pipe 3 to collect the inhaled gas, and by setting a cleaning mechanism 8 on the air intake pipe 3, a lifting connecting plate 82 is set in the cleaning mechanism 8, and a rotatable brush 83 is set on the connecting plate 82. The brush 83 is lifted and rotated at the same time and acts on the surface of the filter screen 7, so that the particles adhering to the surface of the filter screen can be swept off to prevent the accumulation of a large amount of particles from blocking the surface of the filter screen 7 and affecting the ventilation effect. By setting the suction fan 2 to be adjustable in horizontal position, the purpose of adjusting the gas suction position is achieved, and the scope and effect of treatment are improved.

[0042] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0043] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A ventilation device for gas treatment, comprising a mounting plate (1) anchored on the top of a mine cave, a suction fan (2) fixed at the lower end of the mounting plate (1), a suction pipe (3) and an exhaust pipe (4) arranged on the suction fan (2), It is characterized in that A filter screen (7) is fixed to one end of the air intake pipe (3); The air intake pipe (3) is provided with a cleaning mechanism (8), the cleaning mechanism (8) comprising a fixing frame (81) fixed on the air intake pipe (3), a lifting and lowering connecting plate (82) being provided on the fixing frame (81), a rotatable brush (83) being provided on the connecting plate (82), and the brush (83) being able to act on the surface of the filter screen (7) when being lifted and lowered.

2. A ventilation device for gas treatment according to claim 1, It is characterized in that Two fifth fixing plates (822) are arranged on the connecting plate (82), the brush (83) comprises a central rod rotatably connected to the fifth fixing plate (822), a gear (84) is fixed on the central rod, and a rack (85) capable of meshing with the gear (84) is fixed on the fixing frame (81).

3. A ventilation device for gas treatment according to claim 1, It is characterized in that The fixing frame (81) is provided with a collar (811) matched with the air intake pipe (3), the collar (811) is provided with a second threaded hole (812), a bolt is matched and installed in the second threaded hole (812), and the end of the bolt can be pressed against the air intake pipe (3).

4. A ventilation device for gas treatment according to claim 1, It is characterized in that A third fixing plate (821) is provided on one side of the connecting plate (82) and is slidably connected to the fixing frame (81) in the vertical direction. Two fourth fixing plates (813) are provided on the fixing frame (81). A second screw rod (86) capable of rotating is provided between the two fourth fixing plates (813). The second screw rod (86) passes through the third fixing plate (821) in the vertical direction and is threadedly connected thereto.

5. A ventilation device for gas treatment according to claim 4, It is characterized in that The thread lead angle of the second screw rod (86) is smaller than the equivalent friction angle.

6. A ventilation device for gas treatment according to claim 1, It is characterized in that A hose (5) is fixed on the exhaust pipe (4), and the hose (5) can be laid on the ground of the mine and extend to the outside of the mine.

7. A ventilation device for gas treatment according to claim 1, It is characterized in that The position of the suction fan (2) in the horizontal direction is adjustable.

8. A ventilation device for gas treatment according to claim 7, It is characterized in that A first fixing plate (21) is fixed to the upper end of the suction fan (2), and the first fixing plate (21) is slidably connected to the mounting plate (1) in the horizontal direction. Two second fixing plates (11) are arranged at the lower end of the mounting plate (1), and a rotatable first screw rod (6) is arranged between the two second fixing plates (11). The first screw rod (6) passes through the first fixing plate (21) and is threadedly connected thereto.

9. A ventilation device for gas treatment according to claim 8, It is characterized in that The thread lead angle of the first screw rod (6) is smaller than the equivalent friction angle.

10. A ventilation device for gas treatment according to claim 1, It is characterized in that A circular flange (71) is provided on one side of the filter screen (7), the flange (71) cooperates with the outer circle of the air intake pipe (3), a first threaded hole (72) is provided on the flange (71), a mounting bolt is fitted in the first threaded hole (72), and the end of the bolt can be pressed against the air intake pipe (3).

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