Coal mine ventilation and dust removal device

Abstract

The utility model discloses a coal mine ventilation and dust removal device which comprises a box body, a vertical pipe penetrates through the top wall of the box body and is rotatably connected with the top wall of the box body, the bottom end of the vertical pipe is bent, a pipe sleeve is fixed to the top end of the vertical pipe, an air inlet pipe is rotatably connected to the interior of the pipe sleeve in a sealed mode, and a motor for driving the vertical pipe to rotate is fixed to the upper surface of the box body. An air outlet pipe is fixed to the top end of the side wall of the box body. According to the dust removal device, the box body, the vertical pipe, the air inlet pipe, the motor, the air outlet pipe, the spraying assembly and the pump body are arranged, the bottom of the vertical pipe is bent, water submerging the bottom of the vertical pipe is arranged in the box body, air with dust in a mine enters the vertical pipe along the air inlet pipe and then is discharged from the bottom of the vertical pipe, and in the process, the motor can drive the vertical pipe to rotate; therefore, air exhausted from the bottom of the vertical pipe can make full contact with water, the adsorption effect of the water on dust in the air is improved, then dust reduction is further conducted on the air through the spraying assembly, and the dedusted air is exhausted from the air outlet pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine dust removal, in particular to a coal mine ventilation and dust removal device. Background Art

[0002] During the normal coal mining process, a fan is required to continuously ventilate the well from the wellhead to supply oxygen to the underground roadway, ensuring the normal operation of underground personnel and machinery. However, a large amount of dust is generated during the coal mining process, so the dust in the air needs to be filtered and removed during ventilation.

[0003] The patent with the publication number CN221742682U discloses a coal mine ventilation and dust removal device. It introduces the dust-containing gas in the coal mine into the water in the water storage cavity through a duct. While the air flow flows in the duct, it discharges from the air outlet holes of the spiral part, dividing the air flow into multiple small branches, forming small bubbles in the water, so as to fully contact the water in the water storage cavity, facilitating the absorption of dust in the air flow by the water and improving the dust removal effect. However, when this device is actually applied, it has the following disadvantages:

[0004] Since the duct is spirally designed and the air outlet holes are arranged along the direction of the duct, when there is water inside the box body, the water has already passed through the air outlet holes and entered the inside of the duct. Therefore, when air enters the inside of the duct from the air inlet, most of the air can only be discharged from the air outlet holes near the air inlet end, and it is difficult for the air to flow to the rear end of the duct, resulting in low ventilation efficiency. Secondly, dust will stay inside the duct, making the subsequent cleaning of the dust more difficult. In addition, like the existing dust removal devices, when cleaning the sewage inside the box body, it is necessary to completely drain the sewage inside the box body and then replace the water. During this process, the ventilation operation needs to be stopped, resulting in the inability to continuously ventilate. And when cleaning the filter component located inside the box body, the device needs to be disassembled for cleaning, so further improvement is needed. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the disadvantages existing in the prior art, and to propose a coal mine ventilation and dust removal device.

[0006] To achieve the above object, the utility model adopts the following technical scheme: a coal mine ventilation and dust removal device, including a box body, the top wall of the box body is penetrated and rotatably connected with a vertical pipe, the bottom end of the vertical pipe is bent, a pipe sleeve is fixed at the top end of the vertical pipe, an air inlet pipe is hermetically and rotatably connected inside the pipe sleeve, a motor for driving the vertical pipe to rotate is fixed on the upper surface of the box body, an air outlet pipe is fixed at the top end of the side wall of the box body, a first filter screen is horizontally and fixedly connected to the bottom end inside the box body, a water inlet pipe and a water outlet pipe are respectively fixed at the bottom end and the middle of the side wall of the box body, the water outlet pipe and the water inlet pipe are respectively located on the upper and lower sides of the first filter screen, a filtering component is arranged at the bottom end inside the box body, a spraying component is fixed on the inner side wall of the box body and above the water outlet pipe, and a pump body connecting the filtering component and the spraying component is installed on the outer side wall of the box body.

[0007] Further, there is water inside the box body, the bent part at the bottom end of the vertical pipe is below the water surface, a support is fixedly connected to the outer side wall of the air inlet pipe and the upper surface of the box body together, and the air inlet pipe is connected to a ventilation fan.

[0008] Further, a driven gear is fixedly connected to the surface of the top end of the vertical pipe, a driving gear is fixedly connected to the output shaft of the motor, and the driving gear meshes with the driven gear.

[0009] Further, the spraying component includes an annular pipe fixed on the inner side wall of the box body, a plurality of nozzles are fixedly arranged at equal intervals on the side wall of the annular pipe, the filtering component includes a cylinder located at the bottom end inside the box body, and one end of the cylinder is designed to be open, the water inlet of the pump body is communicated with the cylinder through a pipeline, and the water outlet of the pump body is communicated with the annular pipe through a pipeline.

[0010] Further, a second filter screen is fixedly connected to the open end of the cylinder.

[0011] Further, valves are fixedly installed in the middle of both the water inlet pipe and the water outlet pipe.

[0012] The beneficial effects of the utility model:

[0013] 1. When the utility model is in use, for the coal mine ventilation and dust removal device, a box body, a vertical pipe, an air inlet pipe, a motor, an air outlet pipe, a spraying component and a pump body are provided. The bottom of the vertical pipe is bent, there is water in the box body that submerges the bottom of the vertical pipe. The dust-laden air in the mine enters the inside of the vertical pipe along the air inlet pipe and then is discharged from the bottom of the vertical pipe. During this process, the motor can drive the vertical pipe to rotate, so that the air discharged from the bottom of the vertical pipe can fully contact with the water, improving the adsorption effect of water on the dust in the air. Then, the spraying component is used to further reduce the dust in the air, and the dust-removed air is discharged from the air outlet pipe. A large amount of dust will not accumulate inside the vertical pipe of the device, and the dust will enter the box body, which is beneficial to the subsequent cleaning and discharging of the dust.

[0014] 2. When the utility model is in use, for a coal mine ventilation and dust removal device, a box body, a water inlet pipe, a water outlet pipe and a first filter screen are provided. The water inlet pipe is located at the bottom of the box body, the water outlet pipe is located at the top of the box body, and the water inlet pipe and the water outlet pipe are respectively located on both sides of the first filter screen. When it is necessary to clean the dust-containing sewage inside the box body, water can be injected from the water inlet pipe, and the sewage above the first filter screen can overflow and be discharged from the water outlet pipe. In this way, there is always water inside the box body, and the ventilation will not be interrupted due to sewage treatment. Moreover, by using this method, the first filter screen can be backwashed, making the self-cleaning ability of the device stronger. Brief Description of the Drawings

[0015] In order to more clearly illustrate the technical solutions of the present utility model, the drawings required for use in the following description of the specific embodiments will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1 : Overall cross-sectional view of the present utility model;

[0017] Figure 2 : In the present utility model Figure 1 Enlarged view of part A;

[0018] Figure 3 : Three-dimensional view of the filtering component of the present utility model;

[0019] Figure 4 : In the present utility model Figure 1 Enlarged view of part B.

[0020] The reference numerals are as follows:

[0021] 1. Box body; 2. Vertical pipe; 21. Pipe sleeve; 22. Driven gear; 3. Air inlet pipe; 31. Bracket; 4. Motor; 41. Driving gear; 5. Air outlet pipe; 6. First filter screen; 7. Water inlet pipe; 8. Water outlet pipe; 9. Valve; 10. Filtering component; 101. Cylinder; 102. Second filter screen; 11. Spraying component; 111. Annular pipe; 112. Nozzle; 12. Pump body. Detailed Embodiments

[0022] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts belong to the scope of protection of the present utility model.

[0023] AsFigures 1-4 As shown in the figure, it relates to a coal mine ventilation and dust removal device, including a box body 1. A vertical pipe 2 penetrates and is rotatably connected to the top wall of the box body 1. The bottom end of the vertical pipe 2 is bent. A pipe sleeve 21 is fixed to the top end of the vertical pipe 2. An air inlet pipe 3 is hermetically and rotatably connected inside the pipe sleeve 21. A motor 4 for driving the vertical pipe 2 to rotate is fixed on the upper surface of the box body 1. An air outlet pipe 5 is fixed to the top end of the side wall of the box body 1. A first filter screen 6 is horizontally and fixedly connected to the bottom end inside the box body 1. A water inlet pipe 7 and a water outlet pipe 8 are respectively fixed to the bottom end and the middle part of the side wall of the box body 1. The water outlet pipe 8 and the water inlet pipe 7 are respectively located above and below the first filter screen 6. A filtering component 10 is arranged at the bottom end inside the box body 1. A spraying component 11 is fixed to the inner side wall of the box body 1 and above the water outlet pipe 8. A pump body 12 connecting the filtering component 10 and the spraying component 11 is installed on the outer side wall of the box body 1.

[0024] There is water inside the box body 1. The bent part at the bottom end of the vertical pipe 2 is below the water surface. A bracket 31 is fixedly connected to the outer side wall of the air inlet pipe 3 and the upper surface of the box body 1 together. The air inlet pipe 3 is connected to a ventilation fan.

[0025] Under the suction of the ventilation fan, the air inside the mine enters the vertical pipe 2 along the air inlet pipe 3 and finally enters the inside of the box body 1 from the bottom of the vertical pipe 2. At this time, the water in the box body 1 will adsorb the dust in the air, and the air after the dust is adsorbed will be discharged along the air outlet pipe 5. After the dust enters the inside of the box body 1, it will stay above the first filter screen 6, keeping the water at the bottom of the box body 1 clean.

[0026] A driven gear 22 is fixedly connected to the surface of the top end of the vertical pipe 2. A driving gear 41 is fixedly connected to the output shaft of the motor 4. The driving gear 41 meshes with the driven gear 22.

[0027] During the period when the air enters the inside of the box body 1 along the vertical pipe 2, the motor 4 drives the vertical pipe 2 to rotate through the meshing of the gears, so as to increase the contact area between the air discharged from the bottom of the vertical pipe 2 and the water, and further improve the adsorption effect of the water on the dust in the air. Moreover, the water surface just submerges the bottom of the vertical pipe 2, the water pressure is low, and a large amount of dust will not stay inside the vertical pipe 2.

[0028] The spraying component 11 includes an annular pipe 111 fixed to the inner side wall of the box body 1. A plurality of nozzles 112 are fixedly arranged at equal distances on the side wall of the annular pipe 111. The filtering component 10 includes a cylinder 101 located at the bottom end inside the box body 1, and one end of the cylinder 101 is designed to be open. The water inlet of the pump body 12 is communicated with the cylinder 101 through a pipeline. The water outlet of the pump body 12 is communicated with the annular pipe 111 through a pipeline.

[0029] The pump body 12 can pump out the clean water at the bottom of the box body 1, then pump it into the annular pipe 111 and spray it out from the nozzles 112 to achieve further dust reduction of the air.

[0030] The open end of the cylinder 101 is fixedly connected with a second filter screen 102. The water entering the pump body 12 can be further filtered through the second filter screen 102.

[0031] Valves 9 are fixedly installed in the middle of the water inlet pipe 7 and the water outlet pipe 8. The on-off of the water inlet pipe 7 and the water outlet pipe 8 can be controlled through the valves 9.

[0032] Working principle: The dust-laden air in the mine enters the interior of the vertical pipe 2 along the air inlet pipe 3. When it is discharged from the bottom of the vertical pipe 2, the water in the box body 1 will adsorb the dust in the air, and the discharged air will enter the top end of the box body 1. At the same time, the pump body 12 can pump out the clean water at the bottom of the box body 1 and spray it on the top of the box body 1 through the nozzle 112 to further reduce the dust in the air. The dust-reduced air is discharged from the air outlet pipe 5. During this period, the driving motor 4 can be driven to drive the vertical pipe 2 to rotate, so as to increase the contact area between the air discharged from the bottom of the vertical pipe 2 and the water, and further improve the adsorption effect of the water on the dust. When it is necessary to discharge the sewage above the first filter screen 6 for replacement, the valves 9 on the water inlet pipe 7 and the water outlet pipe 8 are opened, and the water enters the interior of the box body 1 from the water inlet pipe 7. The water in the box body 1 will overflow and be discharged along the water outlet pipe 8 until the water discharged from the water outlet pipe 8 is relatively clear, and then the two valves 9 are closed to realize the discharge and replacement of the sewage. This method does not require stopping ventilation and can backwash the first filter screen 6.

[0033] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the present invention to only the specific embodiments. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principle and practical application of the present invention, so that those skilled in the relevant technical field can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A coal mine ventilation and dust removal device, comprising a box body (1), characterized in that: A vertical pipe (2) penetrates and is rotatably connected to the top wall of the box body (1). The bottom end of the vertical pipe (2) is bent. A pipe sleeve (21) is fixed to the top end of the vertical pipe (2). An air inlet pipe (3) is hermetically and rotatably connected inside the pipe sleeve (21). A motor (4) for driving the vertical pipe (2) to rotate is fixed to the upper surface of the box body (1). An air outlet pipe (5) is fixed to the top end of the side wall of the box body (1). A first filter screen (6) is horizontally and fixedly connected to the bottom end inside the box body (1). A water inlet pipe (7) and a water outlet pipe (8) are respectively fixed to the bottom end and the middle part of the side wall of the box body (1). The water outlet pipe (8) and the water inlet pipe (7) are respectively located on the upper and lower sides of the first filter screen (6). A filtering component (10) is arranged at the bottom end inside the box body (1). A spraying component (11) is fixed to the inner side wall of the box body (1) above the water outlet pipe (8). A pump body (12) connecting the filtering component (10) and the spraying component (11) is installed on the outer side wall of the box body (1).

2. The coal mine ventilation and dust removal device according to claim 1, characterized in that: There is water inside the box body (1). The bent part at the bottom end of the vertical pipe (2) is below the water surface. A bracket (31) is fixedly connected to the outer side wall of the air inlet pipe (3) and the upper surface of the box body (1). The air inlet pipe (3) is connected to a ventilation fan.

3. A coal mine ventilation and dust removal device according to claim 1, characterized in that: A driven gear (22) is fixedly connected to the surface of the top end of the vertical pipe (2). A driving gear (41) is fixedly connected to the output shaft of the motor (4). The driving gear (41) meshes with the driven gear (22).

4. A coal mine ventilation and dust removal device according to claim 1, characterized in that: The spraying component (11) includes an annular pipe (111) fixed to the inner side wall of the box body (1). A plurality of nozzles (112) are fixedly arranged at equal intervals on the side wall of the annular pipe (111). The filtering component (10) includes a cylinder (101) located at the bottom end inside the box body (1), and one end of the cylinder (101) is open. The water inlet of the pump body (12) is communicated with the cylinder (101) through a pipeline. The water outlet of the pump body (12) is communicated with the annular pipe (111) through a pipeline.

5. The coal mine ventilation and dust removal device according to claim 4, characterized in that: A second filter screen (102) is fixedly connected to the open end of the cylinder (101).

6. The coal mine ventilation and dust removal device according to claim 1, wherein: Valves (9) are fixedly installed in the middle of the water inlet pipe (7) and the water outlet pipe (8).

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