A micro-powered dust removal device

Abstract

This invention provides a micro-powered dust removal device for the field of dust collection. This device is used in conjunction with the conveyor belt feed chute and installed in front of the material transfer point. It actively reduces the pressure within the feed chute cavity and filters the adsorbed dust. Air-blowing vibration periodically cleans the dust adsorbed on the filter cartridge. The dust, after being shaken, falls into the feed chute and is transported away with the material, achieving a self-circulating dust reduction effect. Compared to existing technologies, the filter element does not need to be removed for dust reduction, thus significantly accelerating dust removal efficiency. Furthermore, with the double-layer filter element and the addition of a moving strip, when compressed air enters the filter element, the outer dust-blocking layer gradually expands, stretching the moving strip. When the compressed gas flow stops, the moving strip quickly returns to its original position, further increasing the vibration amplitude of the filter element and improving the dust removal effect of the compressed gas on the filter element surface.

Description

Technical Field

[0001] This application relates to the field of dust removal, and in particular to a micro-powered dust removal device. Background Technology

[0002] Belt conveyors use the continuous or intermittent movement of conveyor belts to transport various items of different weights. They can transport various bulk materials as well as individual items such as cartons and bags with small weights, and have a wide range of applications. Belt conveyors used in mining include chutes, which are mainly used to promptly remove generated dust and prevent pollution.

[0003] However, during the material conveying process, the falling material at the transfer point of the belt conveyor generates a large amount of dust. The dust causes the gas emissions to fail to meet the emission concentration standards, resulting in a poor on-site environment and a significant impact on the health of workers and the environment. Furthermore, the filter elements in the dust removal device often adhere to a large amount of fine dust, leading to a high frequency of filter element disassembly and cleaning, which is cumbersome and affects the overall dust removal efficiency. Summary of the Invention

[0004] The purpose of this application is to clean up dust in flue gas, significantly reduce the dust content during gas emissions, and minimize the impact on workers and the environment. Compared with existing technologies, this application provides a micro-powered dust removal device, including an electrical control box, a dust collection box, and a dust collection fan connected to the dust collection box. A silencer is connected to the exhaust port of the dust collection fan, and a motor is connected to the outside of the dust collection fan. An end cover is sealed at the opening of the dust collection box, forming a cavity inside. An air duct communicating with the dust collection fan is cut into the top of the dust collection box. A filter element is installed at the opening that is connected to the cavity and the air passage. The filter element is located inside the cavity. Two symmetrical air inlet pipes are fixedly connected to the end of the dust collector away from the dust collector fan. An air bag connected to the external air source is also installed at the outer end of the dust collector. The air bag is located below the two air inlet pipes. A steel wire hose is installed between the air bag and the two air inlet pipes. One end of the steel wire hose is connected to the air inlet pipe by a wire, and the other end of the steel wire hose is equipped with an electromagnetic pulse valve. The motor and the electromagnetic pulse valve are electrically connected to the electrical control box.

[0005] This device is used in conjunction with the conveyor belt feed chute and installed in front of the material transfer point. It actively reduces the pressure inside the feed chute cavity and filters the adsorbed dust. The dust adsorbed on the filter cartridge is cleaned periodically by air-blowing vibration. The dust is shaken off and falls into the feed chute, where it is transported away with the material, achieving a self-circulating dust reduction effect. Compared with existing technologies, the filter element does not need to be removed to reduce dust, thus significantly accelerating the dust removal efficiency. In addition, with the double-layer filter element and the addition of moving strips, when compressed air enters the filter element, the outer dust-blocking layer gradually expands, stretching the moving strips. When the compressed air supply stops, the moving strips quickly return to their original position, further increasing the vibration amplitude of the filter element and making the dust removal effect on the filter element surface even better.

[0006] Furthermore, a baffle is fixedly connected to the lower opening of the dust collector box. The baffle is located on the inner wall away from the motor and is located on the dust running path. It can block and guide the dust, and together with the fan, make the dust move towards the dust collector box.

[0007] Furthermore, a sensor probe is installed at the bottom of the dust collector box. The sensor probe is located on the inner wall of the dust collector box opening opposite the baffle. The sensor probe is electrically connected to the electrical control box. The detection end of the sensor probe extends into the dust collector box and can sense the concentration of porous dust in the air. The data is transmitted to the electrical control box. Based on the preset data, the electrical control box outputs a signal to determine whether the fan works. When the dust concentration is too high, the dust collector fan is controlled to work.

[0008] Furthermore, an air guide pipe is fixedly connected to the inlet of the air inlet facing the dust collector. The end of the air guide pipe extends into the filter element. The air guide pipe is used to guide the compressed air so that it directly enters the filter element. This makes it difficult for the compressed air blown out by the air bag to escape along the air passage to the dust collector fan, thereby effectively increasing the efficiency of the compressed air in removing dust from the filter element.

[0009] Furthermore, the dust collector fan and the air bag do not work simultaneously. The air bag blows out compressed gas. That is, when the dust collector fan is drawing air outward, the air bag does not introduce compressed air into the filter element. This can effectively prevent the falling dust from being stirred up again and effectively ensure the dust removal effect of the compressed gas blowing and vibrating the filter element.

[0010] Optionally, the filter element is configured with two layers, including an inner liner and an outer dust-blocking layer that wraps around the inner liner. The corners of the inner liner are fixedly connected to the outer dust-blocking layer, and there are moving strips connecting the opposite left and right inner walls of the outer dust-blocking layer. The moving strips are located at the center of the filter element.

[0011] Furthermore, the outer dust-blocking layer has a circular cross-section and an elastic porous structure. The outer dust-blocking layer is used for dust filtration, while the inner liner is a three-dimensional cylindrical frame structure. The inner liner is used to support the outer dust-blocking layer, effectively ensuring that the filter element is not easily detached or loosened from the airway opening under the pressure of dusty gas or compressed air.

[0012] Furthermore, the agitator includes an outer sleeve, two symmetrical dust-spraying rods slidably connected inside the outer sleeve, and a follower rope fixedly connected between the dust-spraying rods and the inner wall of the outer dust-blocking layer. The follower rope has a multi-head structure, and multiple heads of the follower rope are fixed to the inner wall of the outer dust-blocking layer. When dust needs to be removed from the filter element, compressed air enters the filter element but cannot exit from the filter element in time, causing the outer dust-blocking layer to gradually bulge, which gradually stretches the agitator. The two dust-spraying rods gradually emerge from the outer sleeve. When the compressed air supply stops, the two dust-spraying rods quickly return to their original positions, which can effectively increase the vibration amplitude of the outer dust-blocking layer and improve the vibration removal effect of dust.

[0013] Furthermore, the ash-spraying rod includes a follower rod that is slidably connected to the outer sleeve, multiple movable rods fixedly connected to the inner end of the follower rod located at (141), and pressure plates fixedly connected to the ends of the multiple movable rods. A compression spring is fixedly connected between the two pressure plates. When the compression spring is in its original state, the surface of the outer ash-blocking layer is flat. When both ash-spraying rods are pulled out from the outer sleeve, the two pressure plates gradually approach each other. At this time, the compression spring is gradually compressed. When the inflation stops, the compression spring can drive the ash-spraying rod to reset when it returns to its original state, thereby accelerating the reset amplitude of the outer ash-blocking layer and making its vibration amplitude greater.

[0014] Furthermore, the movable rod on one spring clip rod can pass through the pressure plate on the other spring clip rod, and the multiple movable rods on the two spring clip rods are distributed at intervals to each other, effectively ensuring that the two spring clip rods do not easily affect each other.

[0015] Compared to existing technologies, the advantages of this application are:

[0016] This device is used in conjunction with the conveyor belt feed chute and installed in front of the material transfer point. It actively reduces the pressure inside the feed chute cavity and filters the adsorbed dust. The dust adsorbed on the filter cartridge is cleaned periodically by air-blowing vibration. The dust is shaken off and falls into the feed chute, where it is transported away with the material, achieving a self-circulating dust reduction effect. Compared with existing technologies, the filter element does not need to be removed to reduce dust, thus significantly accelerating the dust removal efficiency. In addition, with the double-layer filter element and the addition of moving strips, when compressed air enters the filter element, the outer dust-blocking layer gradually expands, stretching the moving strips. When the compressed air supply stops, the moving strips quickly return to their original position, further increasing the vibration amplitude of the filter element and making the dust removal effect on the filter element surface even better. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present application;

[0018] Figure 2 This is a front view of the present application;

[0019] Figure 3 This is a partial schematic diagram of the cavity in this application;

[0020] Figure 4 This is a cross-sectional schematic diagram of the filter element in Embodiment 2 of this application;

[0021] Figure 5 This is a perspective view of the inner liner of the filter element in this application;

[0022] Figure 6 This is a cross-sectional schematic diagram of the filter element in Embodiment 3 of this application;

[0023] Figure 7This is a schematic diagram of the outer layer of the filter element expanding due to compressed air in Embodiment 3 of this application;

[0024] Figure 8 A cross-sectional view of this application with added moving strips;

[0025] Figure 9 This is a three-dimensional schematic diagram of the two spring rods in this application;

[0026] Figure 10 This is a schematic diagram showing the compression spring between the two spring bars of this application being gradually compressed.

[0027] Explanation of the labels in the diagram:

[0028] 1 Motor, 2 Dust Collector Fan, 3 Chamber, 31 Air Duct, 4 End Cover, 41 Dust Collector Box, 5 Filter Element, 6 Baffle, 7 Pair of Wires, 8 Air Bag, 9 Steel Wire Hose, 91 Air Guide Pipe, 10 Silencer, 11 Electrical Control Box, 12 Electromagnetic Pulse Valve, 13 Induction Probe;

[0029] 51 Outer dust barrier layer, 52 Inner liner, 14 Adding moving strip, 141 Outer sleeve, 142 Follower rod, 143 Follower rope, 15 Pressure plate, 16 Movable rod, 17 Compression spring. Detailed Implementation

[0030] The embodiments will be described clearly and completely with reference to the accompanying drawings. All other embodiments obtained by those skilled in the art based on the embodiments in this application without creative effort are within the scope of protection of this application.

[0031] Example 1:

[0032] This invention provides a micro-powered dust removal device; please refer to [link / reference]. Figure 1-2 The system includes an electrical control box 11, a dust collection box 41, and a dust collection fan 2 connected to the dust collection box 41. A silencer 10 is connected to the exhaust port of the dust collection fan 2. A motor 1 is connected to the outside of the dust collection fan 2. An end cap 4 is sealed at the opening of the dust collection box 41. Two symmetrical air inlet pipes are fixedly connected to the end of the dust collection box 41 away from the dust collection fan 2. An air bag 8 connected to the outside air source is also installed at the outer end of the dust collection box 41. The air bag 8 is located below the two air inlet pipes. A steel wire hose 9 is provided between the air bag 8 and the two air inlet pipes. One end of the steel wire hose 9 is connected to the air inlet pipe through a pair of wires 7. An electromagnetic pulse valve 12 is installed at the other end of the steel wire hose 9. The motor 1 and the electromagnetic pulse valve 12 are electrically connected to the electrical control box 11.

[0033] like Figure 3 A cavity 3 is formed inside the dust collector 41. An air duct 31 connected to the dust collector fan 2 is carved out on the top of the dust collector 41. The air duct 31 is connected to the cavity 3. A filter element 5 is installed at the opening of the cavity 3 that connects to the air duct 31. The filter element 5 is located inside the cavity 3.

[0034] A baffle 6 is fixedly connected to the lower opening of the dust collector 41. The baffle 6 is located on the inner wall away from the motor 1 and is positioned on the dust's path, thus blocking and guiding the dust. Together with the fan, it causes the dust to move into the dust collector 41. A sensor 13 is also installed at the lower opening of the dust collector 41. The sensor 13 is located on the inner wall of the dust collector 41 opposite to the baffle 6. The sensor 13 is electrically connected to the electrical control box 11. The detection end of the sensor 13 extends into the dust collector 41 and can sense the concentration of porous dust in the air. The data is transmitted to the electrical control box 11. Based on the preset data, the electrical control box 11 outputs a signal to determine whether the fan should work. When the dust concentration is too high, the dust collector fan 2 is controlled to work.

[0035] An air guide pipe 91 is fixedly connected to the inlet of the air inlet pipe facing the dust collector 41. The end of the air guide pipe 91 extends into the filter element 5. The air guide pipe 91 is used to guide the compressed air so that it directly enters the filter element 5, making it difficult for the compressed air blown out by the air receiver 8 to escape along the air passage 31 to the dust collector fan 2, thereby effectively increasing the efficiency of the compressed air in removing dust from the filter element 5.

[0036] When the conveyor belt generates dust, the dust moves forward with the airflow generated by the belt's movement. The forward movement is obstructed by the baffle 6, and under the action of the dust collector fan 2, the dust moves into the micro-power dust collector cavity. After being filtered by the filter element 5, it is discharged through the outlet of the dust collector fan 2 and the silencer 10. The filtered dust adheres to the outer surface of the filter element 5. The air receiver 8 is connected to an external air source, and through the opening / closing state of the electromagnetic pulse valve 12 between the electrical control box 11, the air receiver 8, and the steel wire hose 9, the air receiver 8 periodically and instantaneously outputs pulse compressed air into the filter element 5, achieving the effect of cleaning the dust on the surface of the filter element 5. The dust on the surface of the filter element 5 falls under the action of the pulse air source. At this time, the motor 1 and the dust collector fan 2 stop operating under the action of the electrical control box 11. The dust on the surface of the filter element 5 falls to the lower flange of the micro-power dust collector under high pressure and falls into the material in the guide trough cavity, where it is transported away with the material.

[0037] It is worth noting that the dust removal fan 2 and the air receiver 8 do not work at the same time. The gas blown out by the air receiver 8 is compressed gas. That is, when the dust removal fan 2 is sucking air outward, the air receiver 8 does not pass compressed air into the filter element 5. This can effectively prevent the falling dust from being stirred up again and effectively ensure the dust removal effect of the compressed gas blowing and vibrating the filter element 5.

[0038] This device is used in conjunction with the conveyor belt feed chute and is installed in front of the material transfer point. It actively reduces the pressure inside the feed chute cavity and filters the adsorbed dust. The dust adsorbed on the filter cartridge is cleaned periodically by air blowing and vibration. After being shaken, the dust falls into the feed chute and is transported away with the material, achieving a self-circulating dust reduction effect. Compared with existing technologies, the filter element does not need to be removed to reduce dust, thus greatly accelerating the dust removal efficiency.

[0039] Example 2:

[0040] Please see Figure 4-5 Compared to Embodiment 1, the filter element 5 in this embodiment is a double-layered structure. The filter element 5 includes an inner liner 52 and an outer dust-blocking layer 51 wrapped around the inner liner 52. The corner of the inner liner 52 is fixedly connected to the outer dust-blocking layer 51. The outer dust-blocking layer 51 has a circular cross-section and an elastic porous structure. The outer dust-blocking layer 51 is used to filter dust. The inner liner 52 is a three-dimensional cylindrical frame structure. The inner liner 52 is used to support the outer dust-blocking layer 51, effectively ensuring that the filter element 5 is not easily detached or loosened from the air passage 31 opening under the push of dusty gas or compressed air.

[0041] In this embodiment, the outer dust-blocking layer 51 of the filter element 5 can expand under compressed air. When the compressed air supply stops, it quickly recovers its deformation and can collide with the inner liner 52, resulting in a larger vibration amplitude and a better dust removal effect.

[0042] Example 3:

[0043] This embodiment adds the following content based on embodiment 2:

[0044] Please see Figure 6 An actuating strip 14 is connected between the opposite left and right inner walls of the outer dust-blocking layer 51. The actuating strip 14 is located at the center of the filter element 5. The actuating strip 14 includes an outer sleeve 141, two mutually symmetrical dust-spraying rods slidably connected inside the outer sleeve 141, and a follower rope 143 fixedly connected between the dust-spraying rods and the opposite inner walls of the outer dust-blocking layer 51. The follower rope 143 has a multi-head structure, and all multiple heads of the follower rope 143 are fixed to the inner walls of the outer dust-blocking layer 51. Figure 7 When dust needs to be removed from the filter element 5, the compressed air enters the filter element 5 but cannot be discharged from the filter element 5 in time, causing the outer dust-blocking layer 51 to gradually bulge, the moving strip 14 to be gradually stretched, and the two dust-splashing rods to gradually come out from the outer sleeve 141. When the compressed air is stopped, the two dust-splashing rods quickly return to their original positions, which can effectively increase the vibration amplitude of the outer dust-blocking layer 51 and make the vibration removal effect of dust better.

[0045] Please see Figure 8-9The dust-retaining rod includes a follower rod 142 slidably connected to the outer sleeve 141, multiple movable rods 16 fixedly connected to the follower rod 142 at the inner end of 141, and pressure plates 15 fixedly connected to the ends of the multiple movable rods 16. A compression spring 17 is fixedly connected between two pressure plates 15. When the compression spring 17 is in its original state, the surface of the outer dust-retaining layer 51 is flat, such as... Figure 10 When both ash-spraying rods are pulled out from the outer sleeve 141, the two pressure plates 15 gradually approach each other. At this time, the compression spring 17 is gradually compressed. When the inflation stops, the compression spring 17 returns to its original state, which can drive the ash-spraying rods to reset, thereby accelerating the reset amplitude of the outer ash-blocking layer 51 and making its vibration amplitude greater.

[0046] The movable rod 16 on one spring clip rod moves through the pressure plate 15 on the other spring clip rod, and the multiple movable rods 16 on the two spring clip rods are distributed at intervals to each other, effectively ensuring that the two spring clip rods do not easily affect each other.

[0047] With the combination of the double-layer filter element 5 and the agitator strip 14, when compressed air enters the filter element 5, the outer dust-blocking layer 51 gradually expands, causing the agitator strip 14 to be stretched. When the compressed gas is stopped, the agitator strip 14 quickly returns to its original position, further increasing the vibration amplitude of the filter element 5, so that the compressed gas can better remove dust from the surface of the filter element 5.

[0048] The above description is only the best implementation method adopted in this application in combination with current practical needs, but the scope of protection of this application is not limited thereto.

Claims

1. A micro-powered dust removal device, comprising an electrical control box (11), a dust collection box (41), and a dust removal fan (2) connected to the dust collection box (41), wherein a silencer (10) is connected to the exhaust port of the dust removal fan (2), and a motor (1) is externally connected to the dust removal fan (2), characterized in that, The dust collector (41) has an end cap (4) sealed at the opening. A cavity (3) is formed inside the dust collector (41). An air duct (31) communicating with the dust collector fan (2) is cut into the top of the dust collector (41). The air duct (31) is interconnected with the cavity (3). A filter element (5) is installed at the opening of the cavity (3) that communicates with the air duct (31). The filter element (5) is located inside the cavity (3). Two phases are fixedly connected to the end of the dust collector (41) away from the dust collector fan (2). The dust collector (41) has symmetrical air inlets and an air bag (8) connected to the outside air source is installed at the outer end of the dust collector (41). The air bag (8) is located below the two air inlets. A steel wire hose (9) is provided between the air bag (8) and the two air inlets. One end of the steel wire hose (9) is connected to the air inlet through a pair of wires (7). The other end of the steel wire hose (9) is equipped with an electromagnetic pulse valve (12). The motor (1) and the electromagnetic pulse valve (12) are both electrically connected to the electrical control box (11). The filter element (5) includes an inner liner (52) and an outer dust-blocking layer (51) wrapped around the inner liner (52). The corner of the inner liner (52) is fixedly connected to the outer dust-blocking layer (51). An actuating strip (14) is connected between the left and right inner walls of the outer dust-blocking layer (51). The actuating strip (14) is located at the center of the filter element (5). The actuating strip (14) includes an outer sleeve (141), two mutually symmetrical dust-spraying rods slidably connected inside the outer sleeve (141), and a follower rope (143) fixedly connected between the dust-spraying rods and the inner walls of the opposite outer dust-blocking layer (51). The follower rope (143) has a multi-head structure, and the follower rope (143) has multiple heads. Each head is fixed to the inner wall of the outer ash-blocking layer (51). The ash-spraying rod includes a follower rod (142) slidably connected to the outer sleeve (141), a plurality of movable rods (16) fixedly connected to the follower rod (142) at the inner end of the outer sleeve (141), and a pressure plate (15) fixedly connected to the end of the plurality of movable rods (16). A compression spring (17) is fixedly connected between the two pressure plates (15). When the compression spring (17) is in its original state, the surface of the outer ash-blocking layer (51) is flat. The movable rod (16) on one of the ash-spraying rods moves through the pressure plate (15) on the other ash-spraying rod, and the plurality of movable rods (16) on the two ash-spraying rods are distributed at intervals.

2. The micro-powered dust removal device according to claim 1, characterized in that, A baffle (6) is fixedly connected to the lower opening of the dust collector (41), and the baffle (6) is located on the inner wall of the dust collector (41) away from the motor (1).

3. The micro-powered dust removal device according to claim 2, characterized in that, A sensor probe (13) is also installed at the lower opening of the dust collector (41). The sensor probe (13) is located on the inner wall of the opening of the dust collector (41) opposite to the baffle (6). The sensor probe (13) is electrically connected to the electrical control box (11).

4. The micro-powered dust removal device according to claim 1, characterized in that, The inlet pipe is fixedly connected to the opening of the dust collector (41), and the end of the air guide pipe (91) extends into the filter element (5).

5. A micro-powered dust removal device according to claim 1, characterized in that, The dust removal fan (2) and the air bag (8) do not work at the same time. The gas blown out by the air bag (8) is compressed gas. That is, when the dust removal fan (2) draws air outward, the air bag (8) does not pass compressed air into the filter element (5).

6. A micro-powered dust removal device according to claim 1, characterized in that, The outer dust-blocking layer (51) has a circular cross-section and is an elastic porous structure. The inner liner (52) is a three-dimensional cylindrical frame structure.

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