Dust removal device with dust removal function

Abstract

This invention provides a dust removal device with a cleaning function, including a gas storage chamber, a bag filter, a cleaning valve, and a vent pipe. The gas storage chamber stores high-pressure gas and has multiple interfaces, each connected to the bag filter. Multiple cleaning valves are located in the gas storage chamber and are positioned opposite the interfaces. The vent pipe is connected to the cleaning valves and can be opened and closed to the atmosphere. When the connected vent pipe is open to the atmosphere, the cleaning valve opens the opposite interface; when the connected vent pipe is closed to the atmosphere, the cleaning valve closes the opposite interface. In this dust removal device, the cleaning valve opens and closes the interface based on the pressure difference between the vent pipe and the gas storage chamber. When the interface is open, the high-pressure gas in the gas storage chamber enters the bag filter for cleaning; when the interface is closed, the bag filter can be used for dust removal. Therefore, the cleaning valve requires no wiring and does not generate current during operation, making the dust removal device simple, easy to maintain, and preventing dust explosions caused by the cleaning valve.

Description

Technical Field

[0001] This invention relates to the field of mining, and more specifically to a dust removal device with a dust removal function. Background Technology

[0002] In mining processes such as coal mining, mining equipment is equipped with dust removal devices to reduce the concentration of dust in the environment, thereby reducing harm to human health. In related technologies, the dust removal device contains multiple bag filters, each with a solenoid valve at its end. These solenoid valves are connected to a high-pressure air source via pipelines. When the solenoid valve opens, high-pressure gas enters the bag filter to clean the dust. However, because the solenoid valves are located inside the dust removal device, they are susceptible to dust contamination and damage. Furthermore, the opening and closing of the solenoid valves poses a risk of dust explosion. Additionally, the multiple solenoid valves corresponding to different bag filters, each requiring wiring, result in complex internal wiring within the dust removal device, making maintenance difficult. Summary of the Invention

[0003] The present invention aims to at least partially solve one of the technical problems in the related art.

[0004] Therefore, embodiments of the present invention propose a dust removal device with a dust removal function.

[0005] The dust removal device with a dust removal function according to an embodiment of the present invention includes:

[0006] The system comprises a gas storage chamber, a bag filter, a cleaning valve, and a ventilation pipe. The gas storage chamber stores high-pressure gas and has multiple interfaces, each of which is connected to the bag filter. Multiple cleaning valves are located in the gas storage chamber and are positioned opposite the interfaces. The ventilation pipe is connected to the cleaning valves and is open and closed to the atmosphere. When the cleaning valve is connected to the ventilation pipe and the atmosphere, it opens the opposite interface and connects it to the gas storage chamber. When the cleaning valve is disconnected from the atmosphere, it closes the opposite interface.

[0007] The dust removal device with cleaning function in this embodiment of the invention has a cleaning valve that opens and closes the interface under the pressure difference between the air pipe and the air storage chamber. When the interface is open, the high-pressure gas in the air storage chamber enters the bag filter for cleaning. When the interface is closed, the bag filter can be used for dust removal. Therefore, the cleaning valve does not need to be wired and does not generate current during operation, making the dust removal device with cleaning function simple and easy to maintain and preventing dust explosion caused by the cleaning valve.

[0008] In some embodiments, the ash removal valve includes a diaphragm that separates the valve chamber of the ash removal valve from the inner cavity of the air storage chamber and is disposed opposite to the interface. The diaphragm has a vent hole that connects the valve chamber of the ash removal valve and the inner cavity of the air storage chamber. When the ash removal valve is connected to the vent pipe and connected to the atmospheric environment, the diaphragm is spaced from the oppositely disposed interface under the air pressure of the air storage chamber, and the oppositely disposed interface is connected to the air storage chamber. When the ash removal valve is disconnected from the atmospheric environment by the vent pipe, the diaphragm resets and abuts against the oppositely disposed interface, closing the interface.

[0009] In some embodiments, the cleaning valve further includes a valve body and an elastic element. The valve body forms the valve cavity and is connected to the vent pipe. The air storage chamber has a plurality of openings disposed opposite to the cleaning valve. The valve body is connected to the air storage chamber and disposed opposite to the openings. The diaphragm is connected between the valve body and the air storage chamber and separates the openings and the valve cavity. The elastic element is connected between the diaphragm and the valve body for driving the diaphragm to reset.

[0010] In some embodiments, the interface is configured as a tube, with one end of the interface located in the gas storage chamber and opposite to the diaphragm, and the other end of the interface connected to the bag filter.

[0011] In some embodiments, the dust removal device with a dust removal function further includes a housing and a bus valve group. The air storage chamber, the bag filter and the dust removal valve are all located inside the housing, and the bus valve group is located outside the housing. Multiple vent pipes are provided. One end of each vent pipe is connected to at least one dust removal valve, and the other end of each vent pipe is connected to the bus valve group so as to control the opening and closing of each vent pipe through the bus valve group, thereby controlling the connection and disconnection between each vent pipe and the atmospheric environment.

[0012] In some embodiments, the dust removal device with a dust removal function further includes a controller located outside the housing, the controller being electrically connected to the bus valve group and used to control the bus valve group.

[0013] In some embodiments, the dust removal device with a dust removal function further includes a pressure sensor. The baghouse dust collectors are arranged in multiple groups side-by-side, each group comprising multiple baghouse dust collectors arranged side-by-side. At least one baghouse dust collector in each group is equipped with the pressure sensor. The pressure sensor is electrically connected to the controller to transmit the detected pressure value to the controller. The controller has a preset pressure value. When the pressure value transmitted by the pressure sensor is greater than or equal to the preset pressure value, the controller causes the bus valve group to open the vent pipe connected to the group of baghouse dust collectors containing the pressure sensor whose transmitted pressure value is greater than or equal to the preset pressure value; or Each of the bag filters is equipped with a pressure sensor, which is electrically connected to the controller to transmit the detected pressure value to the controller. The controller has a preset pressure value. When the pressure value transmitted by the pressure sensor is greater than or equal to the preset pressure value, the controller causes the bus valve group to open the ventilation pipe connected to the bag filter where the pressure sensor is located, which has a transmitted pressure value greater than or equal to the preset pressure value.

[0014] In some embodiments, the bag filter includes a blowpipe and a filter bag assembly. The blowpipe is connected to the interface and has multiple nozzles. The filter bag assembly has multiple air holes, and at least one of the multiple nozzles of the blowpipe is arranged opposite to one of the multiple air holes of the filter bag assembly.

[0015] In some embodiments, the dust removal device with dust removal function further includes a housing, the housing having an air inlet and an air outlet, the inner cavity of the housing being divided into a first sub-cavity and a second sub-cavity, the air inlet being connected to the first sub-cavity, and the air outlet being connected to the second sub-cavity; The filter bag assembly includes a filter bag, a mounting plate, and a flow guide. The filter bag is connected to one end of the mounting plate, and the mounting plate has a plurality of air holes. The flow guide is connected to the other end of the mounting plate and surrounds the plurality of air holes. One end of the blowpipe with a plurality of nozzles is opposite to and spaced apart from the flow guide.

[0016] In some embodiments, the dust removal device with a dust removal function further includes a dust collection hopper, baffles, and a drive assembly. Multiple dust collection hoppers are provided, with each bag filter having a dust collection hopper located below it. A dust discharge port is provided at the bottom of each dust collection hopper. Multiple baffles are provided opposite to the dust discharge ports. Each baffle can move toward the opposite dust discharge port to close it, and can move away from the opposite dust discharge port to open it. Multiple baffles are all provided on the drive assembly, so that multiple dust discharge ports can be opened and closed simultaneously under the drive of the drive assembly. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a dust removal device with a dust removal function according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the air storage chamber, cleaning valve, and air pipe of the dust removal device with cleaning function according to an embodiment of the present invention. Figure 1 The diaphragm in the picture opens the interface; Figure 3 This is a schematic diagram of the air storage chamber, cleaning valve, and air pipe of the dust removal device with cleaning function according to an embodiment of the present invention. Figure 2 The diaphragm in the diagram closes the interface; Figure 4 This is a schematic diagram of the air storage chamber, cleaning valve, air pipe, bus valve group and controller of the dust removal device with cleaning function according to an embodiment of the present invention; Figure 5 This is a schematic diagram of a bag filter and a pressure sensor in a dust removal device with a dust removal function according to an embodiment of the present invention. Figure 6 This is a schematic diagram of a bag filter, air storage chamber, cleaning valve, and air pipe of a dust removal device with cleaning function according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the blow pipe of a dust removal device with a dust removal function according to an embodiment of the present invention; Figure 8 This is a schematic diagram of the filter bag assembly of a dust removal device with a dust removal function according to an embodiment of the present invention; Figure 9 This is a schematic diagram of the dust collection hopper, baffle, drive assembly, and frame of a dust removal device with a dust removal function according to an embodiment of the present invention; Figure 10 This is a schematic diagram of the dust collection hopper, baffle, linkage mechanism, and frame of the dust removal device with dust removal function according to an embodiment of the present invention. Figure 1 The baffle in the picture closes the ash discharge port; Figure 11 This is a schematic diagram of the dust collection hopper, baffle, linkage mechanism, and frame of the dust removal device with dust removal function according to an embodiment of the present invention. Figure 2 The baffle in the picture opens the ash discharge port.

[0018] Figure label: 1. Air storage chamber; 11. Interface; 2. Baghouse dust collector; 21. Pulse jet pipe; 211. Nozzle; 22. Filter bag assembly; 221. Air hole; 222. Filter bag; 223. Mounting plate; 224. Flow guide; 3. Cleaning valve; 31. Diaphragm; 32. Valve body; 33. Elastic element; 34. Limit seat; 35. Pressure block; 4. Vent pipe; 5. Housing; 6. Bus valve group; 7. Controller; 8. Pressure sensor; 9. Ash hopper; 91. Ash discharge port; 10. Baffle; 20. Drive assembly; 201. Linkage mechanism; 2011. First link; 2012. Slide groove; 2013. Second link; 2014. Guide groove; 202. Driver; 30. Frame. Detailed Implementation

[0019] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0020] The following is for reference. Figures 1-11 A dust removal device with a dust removal function according to an embodiment of the present invention is described.

[0021] like Figures 1-11 As shown, the dust removal device with cleaning function in this embodiment of the invention includes an air storage chamber 1, a bag filter 2, a cleaning valve 3, and an air pipe 4.

[0022] The gas storage chamber 1 is used to store high-pressure gas and is equipped with multiple interfaces 11, each of which is connected to a bag filter 2. Optionally, the interfaces 11 are connected to the bag filter 2 in a one-to-one correspondence.

[0023] Multiple cleaning valves 3 are configured, and each cleaning valve 3 is located in the gas storage chamber 1 and positioned opposite to the interface 11. In other words, multiple cleaning valves 3 are located in the gas storage chamber 1 and positioned opposite to the interface 11. Optionally, such as... Figure 2 and Figure 3 As shown, the cleaning valves 3 are positioned above the interface 11 in a corresponding manner.

[0024] Ventilation pipe 4 is connected to ash removal valve 3 and can be switched on and off with the atmospheric environment.

[0025] When the ash removal valve 3 is connected to the atmospheric environment via the vent pipe 4, it opens the corresponding interface 11 and connects the corresponding interface 11 to the gas storage chamber 1, such as... Figure 2 As shown.

[0026] When the ash removal valve 3 is connected to the vent pipe 4 and blocked from the atmospheric environment, it will close the corresponding interface 11. Figure 3 As shown.

[0027] The dust removal device with cleaning function in this embodiment of the invention has a cleaning valve 3 that opens and closes the interface 11 under the pressure difference between the air pipe 4 and the air storage chamber 1. When the interface 11 is open, the high-pressure gas in the air storage chamber 1 enters the bag filter 2 for cleaning. When the interface 11 is closed, the bag filter 2 can be used for dust removal. Therefore, the cleaning valve 3 does not need to be wired and does not generate current during operation, making the dust removal device with cleaning function simple and easy to maintain and preventing dust explosion caused by the cleaning valve 3.

[0028] In some embodiments, such as Figure 2 and Figure 3 As shown, the ash removal valve 3 includes a diaphragm 31, which is separated between the valve chamber of the ash removal valve 3 and the inner cavity of the gas storage chamber 1, and is disposed opposite to the interface 11. It can be optionally arranged along... Figure 2 and Figure 3 As shown, the diaphragm 31 is located above the interface 11. Above the diaphragm 31 is the valve chamber of the cleaning valve 3, and below the diaphragm 31 is the inner cavity of the gas storage chamber 1.

[0029] The diaphragm 31 is provided with a vent hole, which passes through the diaphragm 31 and connects the valve cavity of the cleaning valve 3 and the inner cavity of the gas storage chamber 1.

[0030] When the vent pipe 4 connected to the ash removal valve 3 is connected to the atmospheric environment, such as Figure 2 As shown, the valve chamber of the ash removal valve 3 is connected to the atmospheric environment and is at normal pressure. Under the pressure of the high-pressure gas in the gas storage chamber 1, the diaphragm 31 can be selectively positioned along the airflow path. Figure 2 The upper part moves upward, thus separating itself from the lower interface 11, and connecting the lower interface 11 to the air storage chamber 1. High-pressure gas in the air storage chamber 1 enters the interface 11 through the gap between the diaphragm 31 and the interface 11, and then enters the bag filter 2 connected to the interface 11 to clean the bag filter 2. Optionally, the bag filter 2 stops its dust collection operation at this time, allowing the high-pressure gas in the air storage chamber 1 to enter the bag filter 2 and be cleaned.

[0031] When the vent pipe 4 connected to the ash removal valve 3 is isolated from the atmospheric environment, such as Figure 3 As shown, the high-pressure gas in the gas storage chamber 1 enters the valve chamber of the ash removal valve 3 through the vent hole, so that both the gas storage chamber 1 and the ash removal valve 3 are filled with high-pressure gas. The pressure difference between the upper and lower sides of the diaphragm 31 is approximately zero, so that it can be reset and abut against the interface 11 arranged below and close the interface 11. Optionally, the diaphragm 31 covers the interface 11 and closes the interface 11, thereby closing the interface 11.

[0032] It is understood that the cleaning valve 3 is not limited to having a diaphragm 31. In other embodiments, the cleaning valve 3 includes a piston that moves under the pressure difference between the valve chamber of the cleaning valve 3 and the inner cavity of the gas storage chamber 1 to open and close the port 11.

[0033] In some embodiments, such as Figure 2 and Figure 3 As shown, the ash cleaning valve 3 also includes a valve body 32 and an elastic element 33.

[0034] The valve body 32 forms a valve cavity and is connected to the vent pipe 4. Optionally, the top of the valve body 32 is connected to the vent pipe 4. The air storage chamber 1 may have multiple openings at its top that are opposite to the ash removal valve 3. The openings penetrate the wall of the air storage chamber 1 and communicate with the inner cavity of the air storage chamber 1. The valve body 32 is connected to the air storage chamber 1 by a connector such as bolts and is positioned opposite to the openings. Optionally, the valve body 32 covers each opening one by one.

[0035] The diaphragm 31 is connected between the valve body 32 and the gas storage chamber 1 and separates the opening and the valve cavity. Optionally, the outer periphery of the diaphragm 31 is clamped between the top of the valve body 32 and the gas storage chamber 1. The connector for connecting the valve body 32 and the gas storage chamber 1 passes through the diaphragm 31 to stabilize the connection of the diaphragm 31 and prevent the diaphragm 31 from moving.

[0036] The elastic element 33 is connected between the diaphragm 31 and the valve body 32, and is used to drive the diaphragm 31 to reset. Specifically, when the vent pipe 4 connected to the ash removal valve 3 is isolated from the atmospheric environment, such as... Figure 3 As shown, the high-pressure gas in the gas storage chamber 1 enters the valve chamber of the ash removal valve 3 through the vent, so that both the gas storage chamber 1 and the ash removal valve 3 are filled with high-pressure gas. The pressure difference between the upper and lower sides of the diaphragm 31 is approximately zero. The elastic element 33 pushes the diaphragm 31 to deform downward and connect to the interface 11. The elastic element 33 can be a spring, and the diaphragm 31 can be a metal diaphragm.

[0037] It is understood that the diaphragm 31 is not limited to being reset under the drive of the elastic element 33. In other embodiments, the diaphragm 31 may be selected as an elastic diaphragm to automatically elastically deform and reset when the pressure difference disappears.

[0038] In some embodiments, such as Figure 2 and Figure 3 As shown, the interface 11 is tubular, with one end of the interface 11 located inside the gas storage chamber 1 and opposite to the diaphragm 31. Optionally, the top end of the interface 11 is located at the opening and below the diaphragm 31, so that the top end of the interface 11 and the diaphragm 31 have a small gap, so that the diaphragm 31 can abut against the interface 11 to close the interface 11 when it is reset.

[0039] The other end of the interface 11 is connected to the bag filter 2, and can be plugged into or threaded into the bag filter 2. Optionally, the bottom end of the interface 11 is located outside the air storage chamber 1, and a flame-retardant rubber hose is sleeved between the bottom end of the interface 11 and the end of the bag filter 2.

[0040] In some embodiments, such as Figure 2 and Figure 3As shown, the ash cleaning valve 3 also includes a limit seat 34 and a pressure block 35.

[0041] The limiting seat 34, the middle part of the diaphragm 31, and the pressure block 35 are connected sequentially from top to bottom using fasteners such as bolts. Both the limiting seat 34 and the pressure block 35 are spaced apart from the vent holes. The limiting seat 34 is provided with a limiting groove, and the bottom end of the elastic member 33 is fitted into the limiting groove to be limited.

[0042] When the vent pipe 4 connected to the ash removal valve 3 is connected to the atmospheric environment, the diaphragm 31 drives the pressure block 35 to move upward, so that there is a gap between the pressure block 35 and the interface 11, thereby opening the interface 11. When the vent pipe 4 connected to the ash removal valve 3 is isolated from the atmospheric environment, the elastic element 33 pushes the middle part of the diaphragm 31 downward and drives the pressure block 35 to press against the interface 11, thereby closing the interface 11. The pressure block 35 can be made of elastic material such as rubber to ensure that the interface 11 is sealed when pressed against the interface 11.

[0043] In some embodiments, the gas storage chamber 1 is connected to a high-pressure gas source via a pipeline to replenish the gas storage chamber 1 with high-pressure gas.

[0044] In some embodiments, such as Figure 1 and Figure 4 As shown, the dust removal device with dust removal function also includes a housing 5 and a bus valve group 6.

[0045] The air storage chamber 1, the bag filter 2 and the dust removal valve 3 are all located inside the housing 5, while the bus valve group 6 is located outside the housing 5 and can be optionally connected to the outer wall of the housing 5.

[0046] Multiple vent pipes 4 are configured, with one end of each vent pipe 4 connected to at least one cleaning valve 3. Optionally, depending on the cleaning frequency of the bag filter 2, one portion of the vent pipes 4 is connected to one cleaning valve 3, while another portion is connected to two cleaning valves 3, allowing both valves 3 to open and close simultaneously. The other end of each vent pipe 4 is connected to a bus valve group 6, enabling control of the opening and closing of each vent pipe 4, thereby controlling the connection between each vent pipe 4 and the atmospheric environment. Because the vent pipes 4 are connected between the cleaning valves 3 and the bus valve group 6, they must pass through the wall of the housing 5.

[0047] The bus valve assembly 6 allows for individual control of the opening and closing of each vent pipe 4, enabling the cleaning of all bag filters 2 or only the parts of the bag filters 2 that require cleaning. This provides a high degree of freedom. Furthermore, since the bus valve assembly 6 is located outside the housing 5, it prevents the bus valve assembly 6 from coming into contact with dust inside the housing 5, thus avoiding damage to the bus valve assembly 6 and dust explosions.

[0048] In some embodiments, such as Figure 1 and Figure 4As shown, the dust removal device with dust removal function also includes a controller 7. The controller 7 is located outside the housing 5. The controller 7 is electrically connected to the bus valve group 6 and is used to control the bus valve group 6 so that it can automatically perform dust removal under the control of the controller 7, thereby improving the degree of automation. At the same time, the fact that the controller 7 is located outside the housing 5 can prevent the controller 7 from coming into contact with the dust inside the housing 5, which could lead to damage to the controller 7 or dust explosion.

[0049] In some embodiments, such as Figure 5 As shown, the dust removal device with dust removal function also includes a pressure sensor 8.

[0050] like Figure 1 and Figure 5 As shown, the bag filter 2 is configured as multiple groups arranged side by side, and each group of bag filter 2 includes multiple bag filter 2 arranged side by side.

[0051] It should be noted that a gas storage chamber 1 can be set inside the housing 5, and multiple sets of bag dust collectors 2 are connected to the gas storage chamber 1. Multiple gas storage chambers 1 connected in series can also be set inside the housing 5. The bag dust collectors 2 connected to the multiple gas storage chambers 1 are divided into multiple groups. One set of bag dust collectors 2 can be connected to one gas storage chamber 1, or multiple sets of bag dust collectors 2 can be connected to it.

[0052] Optionally, the housing 5 is provided with three strip-shaped air storage chambers 1 arranged in sequence and connected in series. The top of the strip-shaped air storage chamber 1 is provided with multiple cleaning valves 3 arranged at intervals along its extension direction. The bottom of the strip-shaped air storage chamber 1 is provided with multiple interfaces 11 arranged at intervals along its extension direction. The cleaning valves 3 and interfaces 11 are arranged in a one-to-one correspondence. The bag dust collectors 2 connected to each air storage chamber 1 are divided into two groups.

[0053] At least one bag filter 2 in each group of bag filters 2 is equipped with a pressure sensor 8. Optionally, only one bag filter 2 in each group is equipped with a pressure sensor 8. The pressure sensor 8 is used to acquire the pressure of the bag filter 2. Based on the pressure of the bag filter 2, the degree of dust accumulation and whether cleaning is required are determined. Since multiple bag filters 2 in the same group are arranged sequentially, the pressure of the bag filter 2 can be regarded as the pressure of all bag filters 2 in the same group, so as to determine whether the bag filter 2 in the group needs cleaning. Optionally, the bag filter 2 equipped with the pressure sensor 8 is located in the middle of the bag filter 2 in the group.

[0054] Pressure sensor 8 is electrically connected to controller 7 to transmit the detected pressure value to controller 7. Controller 7 has a preset pressure value. When the pressure value transmitted by pressure sensor 8 is greater than or equal to the preset pressure value, it is considered that the group of bag dust collectors 2 to which pressure sensor 8 is located needs to be cleaned. Controller 7 causes bus valve group 6 to open multiple air pipes 4 connected to the group of bag dust collectors 2 to which pressure sensor 8 is located, so that the group of bag dust collectors 2 can be cleaned.

[0055] It is understood that the pressure sensor 8 is not limited to being installed on at least one bag filter 2 in each group of bag filters 2.

[0056] In other embodiments, each bag filter 2 is equipped with a pressure sensor 8, which is used to obtain the pressure of the corresponding bag filter 2, thereby accurately determining the degree of dust adhering to each bag filter 2 and whether it needs to be cleaned.

[0057] Pressure sensor 8 is electrically connected to controller 7 to transmit the detected pressure value to controller 7. Controller 7 has a preset pressure value. When the pressure value transmitted by pressure sensor 8 is greater than or equal to the preset pressure value, it is considered that the bag filter 2 where pressure sensor 8 is located needs to be cleaned. Controller 7 causes bus valve group 6 to open the air pipe 4 connected to the bag filter 2 where pressure sensor 8 is located, so that the bag filter 2 can be cleaned.

[0058] It is understood that the controller 7 is not limited to controlling the bus valve group 6 based on the pressure value transmitted by the pressure sensor 8. In other embodiments, the controller 7 may also preset a corresponding cleaning time or a corresponding cleaning interval based on the operating status or setting position of the bag filter 2, so as to control the bus valve group 6 to open the corresponding vent pipe 4 according to the preset time or interval, thereby enabling the corresponding bag filter 2 to perform cleaning.

[0059] In some embodiments, such as Figures 6-8 As shown, the bag filter 2 includes a blowpipe 21 and a filter bag assembly 22. The blowpipe 21 can be vertically arranged. The top end of the blowpipe 21 is provided with a connector. A flame-retardant rubber hose is sleeved between the bottom end of the interface 11 and the connector at the top end of the blowpipe 21 so that the blowpipe 21 is connected to the interface 11. The high-pressure gas in the gas storage chamber 1 is supplied into the blowpipe 21 through the interface 11.

[0060] The blowpipe 21 is provided with multiple nozzles 211, which are used to spray high-pressure gas. Optionally, the blowpipe 21 has multiple nozzles 211 on one end face in the horizontal direction. The multiple nozzles 211 can be arranged in a row at intervals in the vertical direction, or the nozzles 211 can be set as multiple rows side by side, each row including multiple nozzles 211 arranged at intervals in the vertical direction.

[0061] The filter bag assembly 22 can be a vertically arranged plate. The end face of one end of the filter bag assembly 22 along the horizontal direction is provided with a plurality of air holes 221. The plurality of air holes 221 can be arranged in a row at intervals along the vertical direction.

[0062] The multiple nozzles 211 of the blowpipe 21 are arranged opposite to at least one of the multiple air holes 221 of a filter bag assembly 22. When the multiple nozzles 211 of the blowpipe 21 are arranged in a row, the blowpipe 21 and a filter bag assembly 22 are arranged opposite each other in the horizontal direction, and the multiple nozzles 211 are arranged opposite to the multiple air holes 221 of the filter bag assembly 22, so that high-pressure gas is supplied into the filter bag assembly 22 through the multiple nozzles 211 and the multiple air holes 221 to clean the dust. When the multiple nozzles 211 of the blowpipe 21 are arranged in multiple rows, the blowpipe 21 and multiple filter bag assemblies 22 are arranged opposite each other in the horizontal direction, and each row of nozzles 211 of the blowpipe 21 is arranged opposite to the multiple air holes 221 of a corresponding filter bag assembly 22, so that high-pressure gas is supplied into the multiple filter bag assemblies 22 simultaneously through the multiple nozzles 211, so that the multiple filter bag assemblies 22 are cleaned simultaneously.

[0063] In some embodiments, such as Figure 1 As shown, the dust removal device with dust removal function also includes a housing 5. The housing 5 is provided with an air inlet and an air outlet. The inner cavity of the housing 5 is divided into a first sub-cavity and a second sub-cavity. The air inlet is connected to the first sub-cavity, and the air outlet is connected to the second sub-cavity.

[0064] Optionally, the housing 5 along such Figure 1 As shown, it extends in the left-right direction, and both the first and second sub-cavities extend in the left-right direction and in the front-back direction (e.g., Figure 1 The two sub-cavities are arranged side by side (in the direction orthogonal to the paper). The first sub-cavity has an air inlet at one end along the left-right direction, and the second sub-cavity has an air outlet at the other end along the left-right direction.

[0065] like Figure 6 and Figure 8 As shown, the filter bag assembly 22 includes a filter bag 222, a mounting plate 223, and a flow guide 224.

[0066] Mounting plate 223 may be connected to a partition separating the first sub-cavity and the second sub-cavity.

[0067] The filter bag 222 is connected to the end of the mounting plate 223 facing the first sub-cavity and is located inside the first sub-cavity. The filter bag 222 can be a vertically arranged plate.

[0068] The mounting plate 223 is provided with multiple through-holes 221, and all the through-holes 221 are connected to the internal space of the filter bag 222. In other words, the bag opening of the filter bag 222 is arranged around the multiple through-holes 221.

[0069] The flow guide 224 is connected to the other end of the mounting plate 223 facing the second sub-cavity and surrounds multiple air holes 221. The flow guide 224 is located inside the second sub-cavity and can be selected as a rectangular ring surrounding multiple air holes 221.

[0070] The blow pipe 21 and the gas storage chamber 1 can be located in the second sub-cavity. One end of the blow pipe 21 with multiple nozzles 211 is opposite to and spaced apart from the guide member 224. Optionally, the guide member 224 is opposite to a row of nozzles 211 of the blow pipe 21.

[0071] When the dust removal device removes dust, the airflow carrying dust enters the first sub-chamber through the air inlet, and then passes through the filter bag 222. The dust carried by the airflow adheres to the filter bag 222 and is filtered. The filtered clean airflow is discharged through the air hole 221 connected to the filter bag 222, enters the second sub-chamber through the gap between the guide 224 and the blow pipe 21, and is discharged from the air outlet.

[0072] When the dust removal device is cleaning, the dust removal device can be stopped. The high-pressure gas in the air storage chamber 1 enters the connected blowpipe 21 through the interface 11 opposite to the opened dust removal valve 3, and is then sprayed out by the nozzle 211. The guide component 224 guides the high-pressure gas sprayed out of the nozzle 211 to the surrounding multiple air holes 221, so that the high-pressure gas enters the connected filter bag 222 through the multiple air holes 221. The airflow of the high-pressure gas through the filter bag 222 and the vibration generated by blowing the filter bag 222 cause the attached dust to fall off, thereby cleaning.

[0073] Furthermore, the guide element 224 is configured with a reduced cross-sectional area along the direction from the blow pipe 21 to the mounting plate 223, and can be tapered, to guide the high-pressure gas ejected from the nozzle 211 toward the surrounding air hole 221.

[0074] In some embodiments, such as Figure 1 , Figures 9-11 As shown, the dust removal device with dust removal function also includes a dust collection hopper 9, a baffle 10, and a drive assembly 20.

[0075] The ash hopper 9 and the drive assembly 20 can be connected to the bottom of the housing 5 or to the frame 30. The frame 30 is connected to the bottom of the housing 5, and can be selected to be connected to the frame 30. The frame 30 can be a rectangle set along the bottom edge of the housing 5.

[0076] Multiple dust collection hoppers 9 are provided, with each bag filter 2 having a dust collection hopper 9 below it to collect the dust removed during cleaning of the bag filter 2. The dust collection hoppers 9 can be configured to correspond one-to-one with the bag filter 2 and be located below the corresponding bag filter 2. The dust collection hoppers 9 are configured as strips parallel to the bag filter 2, with both ends connected to the frame 30. Multiple dust collection hoppers 9 are arranged sequentially along the frame 30 in the parallel arrangement direction of the bag filter 2, and the space surrounded by the frame 30 is sealed, thereby sealing the inner cavity of the shell 5.

[0077] It is understandable that when the ash collection hopper 9 and the drive assembly 20 are connected to the bottom of the housing 5, the multiple ash collection hoppers 9 will close the bottom opening of the housing 5, thereby closing the inner cavity of the housing 5.

[0078] The dust collection hopper 9 can be cone-shaped, and the bottom of the dust collection hopper 9 is provided with a dust discharge port 91. The dust discharge port 91 is used to discharge the dust stored in the dust collection hopper 9 so that the dust collection hopper 9 can continue to receive the dust removed by the bag dust collector 2.

[0079] Multiple baffles 10 and ash discharge ports 91 are configured opposite each other. Optionally, the baffles 10 and the ash discharge ports 91 of the ash collection hopper 9 are configured in a one-to-one correspondence. In other words, each ash discharge port 91 of the ash collection hopper 9 is provided with a baffle 10 configured opposite to it.

[0080] The baffle 10 can move toward the opposite ash discharge port 91 to close the ash discharge port 91, and can move away from the opposite ash discharge port 91 to open the ash discharge port 91. Multiple baffles 10 are provided on the drive assembly 20 so that multiple ash discharge ports 91 can be opened and closed simultaneously under the drive of the drive assembly 20. In other words, the drive assembly 20 drives multiple baffles 10 to move simultaneously so as to open and close the ash discharge ports 91 of multiple ash collection hoppers 9 at the same time.

[0081] The end face of the baffle 10 may be provided with a sealing layer, which may be made of rubber, for contacting the ash collection hopper 9 and sealing the ash discharge port 91.

[0082] When the dust removal device performs dust removal operations, multiple ash discharge ports 91 are closed by corresponding baffles 10 to seal the inner cavity of the housing 5, thereby meeting the requirements of the sealed environment for dust removal operations.

[0083] When the dust removal device performs dust removal operation, multiple ash discharge ports 91 are closed by corresponding baffles 10 so that the dust removed by the bag dust collector 2 falls into the ash collection hopper 9 for collection, avoiding the dust from being dispersed outside the shell 5 and causing secondary pollution.

[0084] When the dust removal device finishes cleaning and the ash collection hopper 9 needs to discharge ash, the drive assembly 20 drives multiple baffles 10 to open multiple ash discharge ports 91 simultaneously, so that multiple ash collection hoppers 9 can discharge ash in a controlled manner at the same time. After the ash discharge is completed, the drive assembly 20 drives multiple baffles 10 to close multiple ash discharge ports 91 simultaneously, so that the dust removal operation can continue.

[0085] The dust removal device with cleaning function in this embodiment of the invention can be applied in a roadway, but is not limited to the roadway environment. The dust removal device is located above the conveyor belt. After the drive component 20 drives multiple baffles 10 to open multiple ash discharge ports 91, the ash discharged from multiple ash collection hoppers 9 falls onto the conveyor belt to be transported, thereby avoiding accumulation and redispersion.

[0086] Optionally, the dust removal device with dust removal function in this embodiment of the invention is connected to mining devices such as tunneling and anchoring machines, roadheaders, tunneling machines, and continuous mining machines, and is driven by the mining devices to move together, thereby being located above the conveyor belt.

[0087] Optionally, the gas storage chamber 1 is connected to a high-pressure gas pipeline in the roadway via a pipeline, or to a high-pressure gas storage tank via a pipeline, to replenish the high-pressure gas.

[0088] In some embodiments, such as Figures 9-11 As shown, the drive assembly 20 includes a linkage mechanism 201 and a driver 202. Multiple baffles 10 are mounted on the linkage mechanism 201. The driver 202 is connected to the linkage mechanism 201 to drive the linkage mechanism 201 to move the multiple baffles 10 simultaneously. The driver 202 is connected to the outer wall of the housing 5 or the outer wall of the frame 30 to prevent contact with dust inside the housing 5, which could cause damage or a dust explosion. The driver 202 can be a pneumatic motor connected to the outer wall of the frame 30.

[0089] It is understood that the drive assembly 20 is not limited to including the linkage mechanism 201. In other embodiments, multiple baffles 10 are connected to the moving rod, and the moving rod is connected to the driver 202. The driver 202 adopts a telescopic component or telescopic mechanism such as a telescopic cylinder, a threaded screw mechanism, or a gear rack mechanism to drive the moving rod to reciprocate and drive multiple baffles 10 to move simultaneously.

[0090] In some embodiments, such as Figure 10 and Figure 11 As shown, the linkage mechanism 201 includes a first link 2011 and a second link 2013.

[0091] Frame 30 is provided with, for example Figure 10 and Figure 11 The multiple guide members arranged at intervals along the left and right direction shown can be guide rods such as bolts provided on the frame 30, or guide bosses on the end face of the frame 30.

[0092] The second link 2013 follows the... Figure 10 and Figure 11 As shown, it is arranged in a left-right direction and has multiple guide grooves 2014 spaced apart. The guide grooves 2014 are arranged along the left-right direction. Figure 10 and Figure 11 As shown, the guide members of the left-right strip frame 30 are correspondingly installed in the guide groove 2014 and are movable along the guide groove 2014, so as to connect the second connecting rod 2013 to the frame 30 through the guide members and guide the second connecting rod 2013 along the guide groove 2014. Figure 10 and Figure 11 The movement is shown in the left and right directions. Multiple baffles 10 are connected to the second link 2013 and arranged sequentially along the second link 2013 so as to move synchronously under the drive of the second link 2013.

[0093] The second link 2013 follows the... Figure 10 and Figure 11 At least one end of the second link 2013 in the left-right direction is pivotally connected to the first link 2011, which is pivotally connected to the frame 30. Optionally, both ends of the second link 2013 are connected to the corresponding first link 2011. At least one first link 2011 is connected to the driver 202, which drives the first link 2011 to pivot clockwise and counterclockwise, thereby causing the second link 2013 to reciprocate in the left-right direction under the guidance of the guide member, so that multiple baffles 10 simultaneously open and close multiple ash discharge ports 91. When both first links 2011 are connected to the corresponding drivers 202, the two drivers 202 need to drive the two first links 2011 to pivot synchronously.

[0094] It should be noted that the first link 2011 is provided with a slide groove 2012 arranged along its extension direction, and the end of the second link 2013 is provided with a slide rod or pulley. The slide rod or pulley is located in the slide groove 2012 and can move along the slide groove 2012 to avoid interference between the first link 2011 and the second link 2013 when the first link 2011 pivots.

[0095] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0096] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0097] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0098] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0099] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0100] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A dust removal device with a dust removal function, characterized in that, include: The gas storage chamber (1), bag filter (2), cleaning valve (3) and ventilation pipe (4) are provided. The gas storage chamber (1) is used to store high-pressure gas and is provided with multiple interfaces (11). Each interface (11) is connected to the bag filter (2). Multiple cleaning valves (3) are provided. The cleaning valves (3) are located in the gas storage chamber (1) and are arranged opposite to the interfaces (11). The ventilation pipe (4) is connected to the cleaning valves (3) and can be opened and closed to the atmospheric environment. When the cleaning valve (3) is connected to the ventilation pipe (4) and connected to the atmospheric environment, the opposite interface (11) is opened and connected to the gas storage chamber (1). When the cleaning valve (3) is blocked from the atmospheric environment by the ventilation pipe (4), the opposite interface (11) is closed. The cleaning valve (3) includes a diaphragm (31), which is separated between the valve chamber of the cleaning valve (3) and the inner cavity of the gas storage chamber (1) and is disposed opposite to the interface (11). The diaphragm (31) is provided with a vent hole, which connects the valve chamber of the cleaning valve (3) and the inner cavity of the gas storage chamber (1). When the cleaning valve (3) is connected to the vent pipe (4) and connected to the atmospheric environment, the diaphragm (31) is spaced from the interface (11) under the air pressure of the gas storage chamber (1) and the interface (11) is connected to the gas storage chamber (1). When the cleaning valve (3) is disconnected from the atmospheric environment by the vent pipe (4), the diaphragm (31) is reset and abuts against the interface (11) and closes the interface (11). The cleaning valve (3) further includes a valve body (32) and an elastic element (33). The valve body (32) forms the valve cavity and is connected to the vent pipe (4). The air storage chamber (1) is provided with a plurality of openings opposite to the cleaning valve (3). The valve body (32) is connected to the air storage chamber (1) and is opposite to the openings. The diaphragm (31) is connected between the valve body (32) and the air storage chamber (1) and separates the openings and the valve cavity. The elastic element (33) is connected between the diaphragm (31) and the valve body (32) and is used to drive the diaphragm (31) to reset. The interface (11) is tubular, with one end of the interface (11) located inside the gas storage chamber (1) and opposite to the diaphragm (31), and the other end of the interface (11) connected to the bag filter (2).

2. The dust removal device with a dust removal function according to claim 1, characterized in that, It also includes a housing (5) and a bus valve group (6). The air storage chamber (1), the bag filter (2) and the cleaning valve (3) are all located inside the housing (5). The bus valve group (6) is located outside the housing (5). Multiple ventilation pipes (4) are provided. One end of the ventilation pipe (4) is connected to at least one of the cleaning valves (3), and the other end of the ventilation pipe (4) is connected to the bus valve group (6) so as to control the opening and closing of each ventilation pipe (4) through the bus valve group (6), thereby controlling the connection and disconnection of each ventilation pipe (4) with the atmospheric environment.

3. The dust removal device with dust removal function according to claim 2, characterized in that, It also includes a controller (7), which is located outside the housing (5) and is electrically connected to the bus valve group (6) and used to control the bus valve group (6).

4. The dust removal device with a dust removal function according to claim 3, characterized in that, It also includes a pressure sensor (8). The bag filter (2) is set up in multiple groups side by side. Each group of bag filter (2) includes multiple bag filter (2) arranged side by side. At least one bag filter (2) in each group of bag filter (2) is equipped with the pressure sensor (8). The pressure sensor (8) is electrically connected to the controller (7) to transmit the detected pressure value to the controller (7). The controller (7) has a preset pressure value. When the pressure value transmitted by the pressure sensor (8) is greater than or equal to the preset pressure value, the controller (7) causes the bus valve group (6) to open the ventilation pipe (4) connected to the group of bag filter (2) where the pressure sensor (8) is located, which has a transmitted pressure value greater than or equal to the preset pressure value; or Each of the bag filters (2) is equipped with a pressure sensor (8), which is electrically connected to the controller (7) to transmit the detected pressure value to the controller (7). The controller (7) has a preset pressure value. When the pressure value transmitted by the pressure sensor (8) is greater than or equal to the preset pressure value, the controller (7) causes the bus valve group (6) to open the ventilation pipe (4) connected to the bag filter (2) where the pressure sensor (8) is located, which has a transmitted pressure value greater than or equal to the preset pressure value.

5. The dust removal device with a dust removal function according to claim 1, characterized in that, The bag filter (2) includes a blow pipe (21) and a filter bag assembly (22). The blow pipe (21) is connected to the interface (11). The blow pipe (21) is provided with a plurality of nozzles (211). The filter bag assembly (22) is provided with a plurality of air holes (221). The plurality of nozzles (211) of the blow pipe (21) are arranged opposite to at least one of the plurality of air holes (221) of the filter bag assembly (22).

6. The dust removal device with a dust removal function according to claim 5, characterized in that, It also includes a housing (5), which has an air inlet and an air outlet. The inner cavity of the housing (5) is divided into a first sub-cavity and a second sub-cavity. The air inlet is connected to the first sub-cavity, and the air outlet is connected to the second sub-cavity. The filter bag assembly (22) includes a filter bag (222), a mounting plate (223), and a flow guide (224). The filter bag (222) is connected to one end of the mounting plate (223). The mounting plate (223) is provided with a plurality of air holes (221). The flow guide (224) is connected to the other end of the mounting plate (223) and surrounds the plurality of air holes (221). The blow pipe (21) is provided with a plurality of nozzles (211), one end of which is opposite to the flow guide (224) and spaced apart.

7. The dust removal device with a dust removal function according to claim 1, characterized in that, It also includes a dust collection hopper (9), a baffle (10), a linkage mechanism (201), and a driver (202). Multiple dust collection hoppers (9) are provided, and each bag filter (2) is provided with a dust collection hopper (9) below it. The bottom of the dust collection hopper (9) is provided with a dust discharge port (91). Multiple baffles (10) are provided opposite to the dust discharge port (91). The baffles (10) can move toward the opposite dust discharge port (91) to close the dust discharge port (91) and can move away from the opposite dust discharge port (91) to open the dust discharge port (91). Multiple baffles (10) are provided on the linkage mechanism (201). The driver (202) is connected to the linkage mechanism (201) to drive the linkage mechanism (201) to drive multiple baffles (10) to open and close multiple dust discharge ports (91) simultaneously.

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