A wet dust removal device for mining

Abstract

This utility model discloses a wet dust removal device for mining, including a dust removal cylinder with openings at both ends. Inside the dust removal cylinder, a dust removal component is installed at an angle, positioned vertically. The edge of the dust removal component is sealed to the inner wall of the dust removal cylinder. The dust removal component includes several air supply plates and several wind baffles, which are staggered horizontally. The top of the air supply plate is sealed to the top plate of the dust removal cylinder, and the bottom is sealed to the bottom plate of the dust removal cylinder. The top of the wind baffle is sealed to the top of the inner wall of the dust removal cylinder, and the bottom is sealed to the bottom of the inner wall of the dust removal cylinder. By designing the dust removal component in a staggered arrangement of air supply plates and wind baffles, this utility model allows dust-laden air to pass sequentially through the gaps between the air supply plates and wind baffles. When dust collides with the wind baffle, the longitudinal wind changes to a transverse wind, and the dust, obstructed, falls downwards, thus achieving the dust removal effect.

Description

Technical Field

[0001] This utility model belongs to the field of coal mine dust removal technology, and in particular relates to a wet dust removal device for mining. Background Technology

[0002] Dust collector fans are commonly used dust removal equipment in mines. They utilize centrifugal force or negative pressure to draw in dust-laden air and separate particulate matter through a filtration device. Their core components include an impeller, a motor, and a shroud. During operation, the motor drives the impeller to rotate at high speed, creating a negative pressure zone at the center that draws in dust-laden gas. The gas is accelerated by the blades, converting its kinetic energy into static pressure energy, and is ultimately discharged through the outlet. Particulate matter is trapped by the filter. These fans are widely used in industrial waste gas treatment, workshop ventilation, and mine dust removal.

[0003] Currently, the filter elements in dust removal equipment are usually mesh. If the size of the filter mesh is too large, the filtration effect will be poor, and if the size is too small, it will be easy to clog, resulting in a low dust removal rate. Utility Model Content

[0004] The purpose of this invention is to provide a wet dust removal device for mining, which redesigns the structure of the filter screen to avoid the impact of inappropriate filter screen size selection on dust removal efficiency.

[0005] The present invention adopts the following technical solution: a wet dust removal device for mining, including a dust removal cylinder with openings at both ends, a collector connected to the rear end of the dust removal cylinder and a fan connected to the front end, and dust removal components placed at an angle in the vertical direction inside the dust removal cylinder. The edges of the dust collector components are sealed to the inner wall of the dust collector cylinder; The dust collection component includes several air supply plates and several air baffles, which are arranged alternately on the left and right sides; The top of the air supply plate is sealed to the top plate of the dust collector, and the bottom is sealed to the bottom plate of the dust collector. The top of the baffle plate is sealed to the top of the inner wall of the dust collector, and the bottom is sealed to the bottom of the inner wall of the dust collector.

[0006] The beneficial effects of this utility model are: by designing the dust removal component as an alternating arrangement of the air supply plate and the wind baffle, the dust-laden air can pass through the gap between the air supply plate and the wind baffle in sequence. When the dust collides with the wind baffle, the longitudinal wind turns into a transverse wind, and the dust will fall downwards due to the obstruction, thereby achieving the effect of dust removal. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of the structure of a wet dust collector for mining according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the collector and nozzle in an embodiment of this utility model; Figure 3 This is a schematic diagram of the structure of a dust removal component in an embodiment of this utility model; Figure 4 This is a schematic diagram of another structure of the dust removal component in an embodiment of this utility model.

[0008] The components include: 1. collector; 2. connecting flange; 3. dust collector cylinder; 4. dust collector components; 5. adapter; 6. support leg; 7. nozzle; 8. drain outlet; 41. First arc plate; 42. Second arc plate; 43. First fixing rod; 44. Second fixing rod; 51. First groove plate; 52. Second groove plate; 53. Third fixing rod; 54. Fourth fixing rod. Detailed Implementation

[0009] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0010] This utility model discloses a wet dust removal device for mining, such as... Figure 1 As shown, the dust collector includes a dust collector 3 with openings at both ends. A collector 1 is connected to the rear end of the dust collector 3, and a fan is connected to the front end. A dust collector 4 is installed inside the dust collector 3, which is placed at an angle in the vertical direction. The edge of the dust collector 4 is sealed to the inner wall of the dust collector 3. The dust collector 4 includes several air supply plates and several baffle plates, which are arranged alternately on the left and right sides. The top of the air supply plate is sealed to the top plate of the dust collector 3, and the bottom is sealed to the bottom plate of the dust collector 3. The top of the baffle plate is sealed to the top of the inner wall of the dust collector 3, and the bottom is sealed to the bottom of the inner wall of the dust collector 3.

[0011] It should be noted that the air supply plate or baffle plate connected to the side plate of the dust collector 3 are sealed to the side plate of the dust collector 3.

[0012] This utility model designs the dust removal component 4 as an alternating arrangement of an air supply plate and a baffle plate, which allows dust-laden air to pass through the gap between the air supply plate and the baffle plate in sequence. When the dust collides with the baffle plate, the longitudinal wind turns into a transverse wind, and the dust falls downward due to the obstruction, thereby achieving the effect of dust removal.

[0013] In addition, since the dust removal component 4 is placed at an angle, when dust collides with the baffle, it will generate a component force along the tilt angle of the baffle, causing the dust to move up or down along the baffle, reducing the probability of moving to the left or right, thereby increasing the dust removal efficiency.

[0014] The dust collector 4 divides the dust collector cylinder 3 into a rear air inlet section and a front air outlet section. In the air inlet section, the dust collector 4 forms an acute angle with the bottom plate of the dust collector cylinder 3 and an obtuse angle with the top plate of the dust collector cylinder 3. Preferably, the acute angle is 60°. With this angle setting, when dust collides with the baffle plate, it will slide down along the baffle plate to achieve the dust removal effect.

[0015] Specifically, the wind deflector protrudes backward in the middle and forward at both ends; the air supply plate protrudes forward in the middle and backward at both ends. This combined backward and forward protrusion design further increases the wind deflector's resistance to dust, thus improving dust removal efficiency. Furthermore, several wind deflectors are fixed to rear-end fixing rods, with both ends of the fixing rods fixed to both ends of the dust collector 3. Similarly, several air supply plates are fixed to front-end fixing rods, with both ends of the fixing rods fixed to both ends of the dust collector 3. This increases the overall stability of the air supply plates and wind deflectors.

[0016] More specifically, such as Figure 3 As shown, both the baffle and the air supply plate are designed with a semi-circular cross-section. The first arc plate 41 is the baffle, and the second arc plate 42 is the air supply plate. Multiple first arc plates 41 are connected as one unit by a first fixing rod 43, and multiple second arc plates 42 are connected as one unit by a second fixing rod 44. Both ends of the first fixing rod 43 and the second fixing rod 44 are fixed to the side plate of the dust collector 3. When dust-laden air passes through the dust collector 4, it is first divided into multiple airflows by the air supply plate 42. Each airflow enters through the gap between the second arc plates 42. When the dust-laden air collides with the first arc plate 41, it is blocked by the first arc plate 41. Most of the dust falls downwards along the first arc plate 41, while a small portion continues to flow to the left and right with the airflow. When it reaches the end of the first arc plate 41, its edge blocks the dust from continuing to flow to the outlet section and falls down along the first arc plate 41, thus achieving the dust removal effect.

[0017] In another embodiment, such as Figure 4 As shown, the first slotted plate 51 is a baffle plate, and the second slotted plate 52 is an air supply plate. Several first slotted plates 51 are connected by a third fixing rod 53 and fixed to the side plate of the dust collector 3. Several second slotted plates 52 are connected by a fourth fixing rod 54 and fixed to the side plate of the dust collector 3. In this embodiment, the middle part of the first slotted plate 51 and the second slotted plate 52 are bent plates with both ends extending beyond the edges. Its dust removal effect is slightly higher than that of the previous embodiment. However, because the airflow path of the dust-laden air has several bends, the airflow speed will be slightly reduced. The airflow path of the dust-laden air in this embodiment is the same as that in the previous embodiment, and will not be described again.

[0018] In this embodiment of the invention, a nozzle 7 is provided at the rear end of the collector 1. By designing the nozzle to spray water mist onto the dust-laden air, the dust can combine with the water mist, increasing the weight of the dust. As a result, the dust falls more easily when it passes through the dust collector 4 with the air, thus improving the dust removal efficiency. Preferably, a plurality of nozzles 7 are evenly spaced at the rear end of the collector 1 to further enhance the dust removal effect.

[0019] The collector 1 can be designed in a trumpet shape to improve the air intake effect, and its front end is designed with a connecting flange 2 to facilitate connection with the dust collector 3.

[0020] The bottom plate of the dust collector 3 has a drain port 8 at a position corresponding to the dust collector 4. When dust falls, it can fall through the drain port 8. Although a small amount of dust-laden air will be drawn in through the drain port 8, the size and position of the drain port 8 make the amount of dust-laden air drawn in negligible compared to the amount entering from the collector 1.

[0021] In addition, to increase the ease of connection between the dust collector 4 and the fan, an adapter 5 can be added to the front end of the dust collector 3, such as a square opening to a round opening. Support legs 6 are also provided at the bottom of the dust collector 3 to adjust its height.

[0022] It should be noted that the dust collector uses δ4 Q235-A steel plate. It employs a hydrocyclone (guide vane) combined with a vibrating wire filter grid air-water separation device. After the dust-laden air is removed by the dust collector fan, due to the wet spray, the discharged air contains a large amount of moisture. The hydrocyclone separates the water mist in the air under the action of centrifugal force.

[0023] This invention is particularly beneficial for the use of fans in complex underground environments, facilitating the removal of coal dust. By replacing the high-density corrugated filter plate with a dust removal plate, the structure is simple, easy to manufacture, requires no cleaning cycle, has strong self-cleaning capabilities, can operate continuously for extended periods without clogging, and requires no disassembly, cleaning, or maintenance. Its simple structure makes it easy to use.

[0024] This invention features a unique principle, small size, and light weight. It employs a "vibrating wire filter plate" device with multiple dust removal mechanisms. The filtration velocity of the dust removal component 4 can be increased to 10-18 m / s, and this velocity is positively correlated with the dust collection efficiency. This minimizes the space occupied per unit of air volume processed, requiring only 10% to 40% of similar products. Furthermore, it has a low operating resistance of 1200 Pa, and its energy consumption per unit of air volume processed is approximately 30% of that of similar products.

[0025] This structure boasts high dust removal efficiency and is applicable to a wide range of dust concentrations, with a measured dust concentration of 24000 mg / m³. 3Even under certain conditions, it can still function normally without clogging, and its purification effect on low-concentration dust-laden gases is equally satisfactory. It can capture a wide range of dust particle sizes, exhibiting high dust collection efficiency for both coarse and respirable dust. Employing wet dust collection technology, it consumes very little water, only 0.06 L / m³. 3 It boasts high dehydration efficiency, effectively conserving water resources. It is easy to assemble, compact, lightweight, and convenient to move and install. Various ventilation and dust removal systems for tunneling can be provided to meet the needs of different user work sites, and can be combined to create wet dust collectors with varying air volumes to satisfy user requirements.

Claims

1. A wet dust removal device for mining, characterized in that, The dust collector (3) includes a dust collector cylinder (3) with openings at both ends. The dust collector cylinder (3) is connected to a collector (1) at its rear end and a fan at its front end. The dust collector cylinder (3) is equipped with a dust collector component (4) that is placed at an angle in the vertical direction. The edge of the dust removal component (4) is sealed to the inner wall of the dust removal cylinder (3); The dust removal component (4) includes several air supply plates and several wind baffles, with the air supply plates and wind baffles arranged alternately on the left and right sides; The top of the air supply plate is sealed to the top plate of the dust collector (3), and the bottom is sealed to the bottom plate of the dust collector (3). The top of the baffle plate is sealed to the top of the inner wall of the dust collector (3), and the bottom is sealed to the bottom of the inner wall of the dust collector (3).

2. The wet dust removal device for mining as described in claim 1, characterized in that, The dust removal component (4) divides the dust removal cylinder (3) into a rear air inlet section and a front air outlet section; In the air inlet section, the angle between the dust removal component (4) and the bottom plate of the dust removal cylinder (3) is an acute angle, and the angle between the dust removal component (4) and the top plate of the dust removal cylinder (3) is an obtuse angle.

3. The wet dust removal device for mining as described in claim 2, characterized in that, The wind deflector protrudes backward in the middle and forward at both ends; The air supply plate protrudes forward in the middle and backward at both ends.

4. A wet dust removal device for mining as described in claim 3, characterized in that, Several of the aforementioned baffles are fixed to the rear fixing rod, and the two ends of the fixing rod are fixed to the two ends of the dust collector (3).

5. A wet dust removal device for mining as described in claim 3, characterized in that, Several of the aforementioned air supply plates are fixed to the front fixing rod, and the two ends of the fixing rod are fixed to the two ends of the dust collector (3).

6. A wet dust removal device for mining as described in claim 4 or 5, characterized in that, The collector (1) is provided with a nozzle (7) at its rear end.

7. A wet dust removal device for mining as described in claim 4 or 5, characterized in that, Several nozzles (7) are evenly spaced at the rear end of the collector (1).

8. A wet dust removal device for mining as described in claim 7, characterized in that, The bottom plate of the dust collector (3) has a drain outlet (8) at the position corresponding to the dust collector (4).

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