Nozzle-free air flow purification device for coal mine

Abstract

The invention relates to the field of coal mines, in particular to a nozzle-free airflow purification device for a coal mine. The nozzle-free airflow purification device for the coal mine comprises an atomized water curtain outer spray pipe, an atomizing water curtain compressed air inner driving pipe is arranged in the atomizing water curtain outer spraying pipe, and a cavity formed by the outer side of the atomizing water curtain compressed air inner driving pipe and the inner side of the atomizing water curtain outer spraying pipe is an atomizing cavity; wherein a cleaning assembly is arranged in the atomization cavity, and water scale in the atomization cavity can be cleaned through the cleaning assembly. According to the nozzle-free air flow purification device for the coal mine, the mode that compressed air is matched with static pressure water is innovatively adopted, efficient air flow purification in various complex scenes under the coal mine is achieved, and the air flow purification effect and stability can be remarkably improved; and the problems of blockage, abrasion, short service life and the like of a traditional nozzle device in an underground severe environment can be effectively solved.

Description

Technical Field

[0001] The invention relates to the field of coal mines, and in particular to a nozzle-free air flow purification device for coal mines. Background Art

[0002] At present, most of the wind flow purification devices used in coal mines are of nozzle type design, and the nozzle materials include plastic and metal. Under ideal conditions, these devices have good atomization effect in the well. However, in actual underground use, due to the influence of coal mine dust, the nozzle is easily blocked or worn, resulting in a shortened service life of the device and poor atomization effect. In addition, in places with low water pressure, these devices may not be able to generate enough pressure to achieve the ideal atomization effect, thus limiting their scope of application, not only increasing maintenance costs, but also affecting the effectiveness and reliability of wind flow purification devices in coal mines.

[0003] Therefore, it is necessary to provide a new nozzle-free air flow purification device for coal mines to solve the above-mentioned technical problems. Summary of the invention

[0004] In order to overcome the defects of the prior art, a nozzle-free air flow purification device for coal mines is now provided to solve the above-mentioned problems.

[0005] The nozzle-free airflow purification device for coal mines provided by the present invention comprises: an atomizing water curtain outer nozzle; an atomizing water curtain pressure wind inner driving pipe is arranged inside the atomizing water curtain outer nozzle, and the cavity formed by the outer side of the atomizing water curtain pressure wind inner driving pipe and the inner side of the atomizing water curtain outer nozzle is an atomizing chamber; wherein a cleaning component is arranged inside the atomizing chamber, and the scale in the atomizing chamber can be cleaned by the cleaning component; a moving component is arranged at one end of the outer side of the atomizing water curtain outer nozzle, which is located on the side close to the cleaning component, and the moving component The component can drive the cleaning component to reciprocate in the atomizing chamber; a plurality of fixing components are arranged on the outer side of the atomizing water curtain outer nozzle, and the fixing components can facilitate the installation and layout of the atomizing water curtain outer nozzle; one end of the atomizing water curtain outer nozzle is connected to a connector, and the top of the connector is connected to an underground static pressure water quick connector, the end of the atomizing water curtain pressure wind inner driving pipe close to the connector passes through the connector and is connected to the down-pressure wind gas quick connector, and the end of the atomizing water curtain outer nozzle away from the connector is connected to a backwashing quick connector.

[0006] Preferably, a plurality of outer tube nozzles are provided on the outer side of the outer nozzle of the atomizing water curtain along the axial direction, and a plurality of inner tube nozzles are provided on the outer side of the inner driving tube of the atomizing water curtain compressed air along the axial direction, and the outer tube nozzles and the inner tube nozzles are staggered.

[0007] Preferably, the cleaning assembly includes a first support ring frame slidably connected to the outer side of the atomizing water curtain compressed air inner driving tube, and a first annular groove is opened on the outer side of the first support ring frame, an N-pole magnet is installed in the first annular groove, and first annular brush plates are connected to both sides of the first support ring frame.

[0008] Preferably, the inner sides of the two first annular brush plates are connected to a plurality of inner tube outer wall brushes, and the inner tube outer wall brushes are equidistantly distributed along the axis of the first annular brush plate; the outer sides of the first annular brush plates are connected to a plurality of outer tube inner wall brushes, and the outer tube inner wall brushes are equidistantly distributed along the axis of the first annular brush plate; the inner side of the first support ring frame is provided with a plurality of water flow holes for water to flow through.

[0009] Preferably, the movable component includes a second support ring frame slidably connected to the outer side of the outer nozzle of the atomizing water curtain, and the second support ring frame is located on a side close to the first support ring frame, a second annular groove is opened on the inner side of the second support ring frame, an S-pole magnet is installed in the second annular groove, and second annular brush plates are connected to both sides of the second support ring frame.

[0010] Preferably, the inner sides of the two second annular brush plates are connected to a plurality of outer tube outer wall brushes, and the outer tube outer wall brushes are equidistantly distributed along the axis of the second annular brush plates, and the outer side of the second support ring frame is connected to a plurality of gripping parts, and the gripping parts are equidistantly distributed along the axis of the second support ring frame.

[0011] Preferably, the outer side of the N-pole magnet and the inner side of the S-pole magnet attract each other.

[0012] Preferably, the fixing assembly includes a mounting plate, and the mounting plate is located at the outer top of the outer nozzle of the atomizing water curtain, and the mounting plate is a cross structure, and fixing holes are opened at the four corners of the mounting plate, and each of the fixing holes has a fixing rod, and support rods are connected to both sides of the bottom of the mounting plate, and the bottoms of the two support rods are connected to support plates.

[0013] Preferably, an abutment plate is provided at the bottom of the support plate, and the bottom of the abutment plate is located at the outer top of the outer nozzle of the atomizing water curtain and abuts against it. Guide rods are connected to both sides of the top of the abutment plate, and the tops of the two guide rods pass through the support plate and are connected to the limiting blocks. Return springs are sleeved on the outer bottoms of the two guide rods, and the return springs are located between the abutment plate and the support plate.

[0014] Preferably, the fixing assembly also includes a U-shaped frame, and the U-shaped frame is located at the outer bottom of the outer nozzle of the atomizing water curtain, bending parts are provided on the top of both sides of the U-shaped frame, and a slot for the bending part to pass through is opened on the support plate, and extrusion parts are installed on both sides of the U-shaped frame, and the extrusion part is located below the bending part.

[0015] Compared with the related art, the nozzle-free air flow purification device for coal mines provided by the present invention has the following beneficial effects: The present invention realizes efficient wind flow purification in various complex scenes in coal mines by innovatively adopting the combination of compressed air and static pressure water. It can not only significantly improve the effect and stability of wind flow purification, but also effectively solve the problems of blockage, wear and short service life faced by traditional nozzle devices in the harsh environment underground. Through the synergistic effect of compressed air and static pressure water, the device can operate stably under different water pressure conditions, produce uniform and fine water mist particles, and ensure the high efficiency of wind flow purification.

[0016] The present invention can solve the problems of reduced atomization effect, device blockage and frequent maintenance caused by scale accumulation in traditional airflow purification devices by providing a cleaning component. The design of the cleaning component ensures that the scale in the atomization chamber can be completely and effectively removed, thereby maintaining the long-term stable operation of the device.

[0017] The present invention provides a fixing component, and the fixing component can ensure the stable installation and layout of the outer nozzle of the atomizing water curtain in the underground environment of the coal mine. Through the cooperation of the bending part and the slot and the action of the extrusion part, the stable fixation and convenient disassembly of the outer nozzle of the atomizing water curtain are achieved, which provides convenience for the installation, maintenance and adjustment of the nozzle-free airflow purification device for coal mines. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic structural diagram of a preferred embodiment of a nozzle-free air flow purification device for coal mines provided by the present invention; Figure 2 for Figure 1 The front view of the structure is shown; Figure 3 for Figure 1 The schematic diagram of the structure of the atomizing water curtain pressure wind inner driving pipe shown; Figure 4 for Figure 1 The schematic diagram of the structure of the outer tube nozzle shown; Figure 5 for Figure 1 The schematic diagram of the structure of the inner tube nozzle shown; Figure 6 for Figure 1 The structural diagram of the grasping part shown; Figure 7 for Figure 1 A schematic diagram of the structure of the cleaning component shown; Figure 8 for Figure 1 A schematic diagram of the structure of the mobile assembly shown; Fig. 9 for Figure 1A schematic diagram of the structure of the fixing component shown.

[0019] Numbers in the figure: 1, atomizing water curtain outer nozzle; 11, atomizing water curtain pressure wind inner driving pipe; 12, connector; 13, underground static pressure water quick connector; 14, downhole pressure wind gas quick connector; 15, backwashing quick connector; 16, outer tube nozzle; 17, inner tube nozzle; 2, first support ring frame; 21, first annular groove; 22, N-pole magnet; 23, first annular brush plate; 24, inner tube outer wall brush; 25, outer tube inner wall brush Brush; 26, water flow hole; 3, second support ring frame; 31, second annular groove; 32, S pole magnet; 33, second annular brush plate; 34, outer tube outer wall brush; 35, grasping part; 4, mounting plate; 41, fixing hole; 42, fixing rod; 43, support rod; 44, support plate; 45, abutment plate; 46, guide rod; 47, reset spring; 5, U-shaped frame; 51, bending part; 52, slot; 53, extrusion part. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0021] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0022] The embodiment of the present invention provides a nozzle-free airflow purification device for coal mines, which comprises: an atomizing water curtain outer nozzle 1; an atomizing water curtain pressure wind inner driving pipe 11 is arranged inside the atomizing water curtain outer nozzle 1, and the cavity formed by the outer side of the atomizing water curtain pressure wind inner driving pipe 11 and the inner side of the atomizing water curtain outer nozzle 1 is an atomizing chamber; wherein, a cleaning component is arranged in the atomizing chamber, and the scale in the atomizing chamber can be cleaned by the cleaning component; a moving component is arranged at one end of the outer side of the atomizing water curtain outer nozzle 1, which is located on the side close to the cleaning component, and the cleaning component can be driven to move back and forth in the atomizing chamber by the moving component; a plurality of fixed The outer nozzle 1 of the atomizing water curtain is provided with a connector 12, and the top of the connector 12 is connected to a downhole static pressure water quick connector 13. The end of the atomizing water curtain pressure wind inner driving pipe 11 close to the connector 12 passes through the connector 12 and is connected to a down-pressure wind gas quick connector 14. The end of the atomizing water curtain outer nozzle 1 away from the connector 12 is connected to a backwashing quick connector 15. A plurality of outer tube nozzles 16 are provided on the outer side of the atomizing water curtain outer nozzle 1 along the axis direction. A plurality of inner tube nozzles 17 are provided on the outer side of the atomizing water curtain pressure wind inner driving pipe 11 along the axis direction, and the outer tube nozzles 16 and the inner tube nozzles 17 are staggered.

[0023] It should be noted that the outer nozzle 1 of the atomizing water curtain and the inner driving tube 11 of the atomizing water curtain pressure wind together constitute an atomizing chamber, and the atomization of water is achieved through the driving action of the inner driving tube 11 of the pressure wind. The cleaning component is located in the atomizing chamber and is used to clean the scale in the chamber. The cleaning component moves back and forth in the atomizing chamber driven by the moving component to clean the scale in the chamber and ensure the normal operation of the device. The fixing component is used to fix the outer nozzle 1 of the atomizing water curtain in an appropriate position to facilitate the installation and layout of the device. Through the connector 12 and various quick connectors, the device can be quickly connected to the downhole static pressure system, the downhole pressure gas system and the backwashing system, which is convenient for operation and maintenance. The downhole static pressure water quick connector 13 is used to quickly connect the downhole static pressure system. Through the downhole static pressure water quick connector 13, the water pressure provided by the downhole static pressure system is introduced into the outer nozzle 1 of the atomizing water curtain to provide the required water source and pressure for the atomization process. The down-pressure air quick connector 14 is used to quickly connect the down-pressure air system. Through the down-pressure air quick connector 14, the air pressure provided by the down-pressure air system is introduced into the atomizing water curtain pressure air inner driving pipe 11 to provide the required driving force for the atomizing process. The backwash quick connector 15 is used to connect the backwash system to realize the backwash operation of the atomizing water curtain outer nozzle 1. Through the backwash quick connector 15, the water flow provided by the backwash system is introduced into the atomizing water curtain outer nozzle 1 to flush the scale and impurities in the pipe to keep the pipe clean and unobstructed. The outer tube nozzle 16 and the inner tube nozzle 17 of the outer nozzle 1 of the atomizing water curtain are staggered. The staggered distribution of the outer tube nozzle 16 and the inner tube nozzle 17 can make the water mist more evenly distributed in the atomizing chamber, thereby improving the wind flow purification effect. The staggered distribution of the nozzles can increase the coverage area of ​​the water mist, so that more wind flow can be purified, and can reduce the accumulation of scale at the nozzle, thereby reducing the risk of blockage. The diameter of the outer tube nozzle 16 is smaller than that of the inner tube nozzle 17. The static pressure water jet atomization is driven by the principle that the high-pressure gas has an increased flow rate at a small aperture. Since the diameter of the inner tube nozzle 17 is small, the airflow will be accelerated when passing through. When the high-speed airflow meets the water droplets sprayed by the outer tube nozzle 16, the water droplets can be effectively broken into smaller water mist particles. The water pressure introduced by the underground static water quick connector 13 causes water to spray out from the outer tube nozzle 16, and the wind pressure introduced by the downward pressure wind gas quick connector 14 causes the airflow to spray out from the inner tube nozzle 17. After the water is sprayed out from the outer tube nozzle 16, it meets the airflow sprayed from the inner tube nozzle 17, forming fine water mist particles in the atomization chamber. The formed water mist particles flow with the wind flow to adsorb and purify the dust and harmful gases in the wind flow. When the high-speed gas passes through the inner tube nozzle 17, its kinetic energy will increase due to the limitation of the aperture. Even if part of the gas is intercepted at the pipe wall and the speed is reduced, its kinetic energy is still enough to break the water droplets from the outer tube nozzle 16 into smaller water mist particles. These three quick connectors are respectively connected to the underground static pressure system, the downward pressure wind gas system and the backwashing system, providing the required water pressure, wind pressure and backwashing functions for the normal operation of the nozzle-free airflow purification device for coal mines.Through the connection of these quick connectors, the device can be quickly installed, operated and maintained, improving work efficiency and reliability.

[0024] In an embodiment of the present invention, the cleaning component includes a first support ring frame 2 which is slidably connected to the outer side of the atomizing water curtain compressed air inner driving tube 11, and a first annular groove 21 is provided on the outer side of the first support ring frame 2, an N-pole magnet 22 is installed in the first annular groove 21, and first annular brush plates 23 are connected to both sides of the first support ring frame 2, and a plurality of inner tube outer wall brushes 24 are connected to the inner sides of the two first annular brush plates 23, and the inner tube outer wall brushes 24 are equidistantly distributed along the axis of the first annular brush plate 23, a plurality of outer tube inner wall brushes 25 are connected to the outer side of the first annular brush plate 23, and the outer tube inner wall brushes 25 are equidistantly distributed along the axis of the first annular brush plate 23, and a plurality of water flow holes 2 are provided on the inner side of the first support ring frame 2 for water flow to pass through. 6. The moving component includes a second support ring frame 3 which is slidably connected to the outer side of the outer nozzle 1 of the atomizing water curtain, and the second support ring frame 3 is located on a side close to the first support ring frame 2. A second annular groove 31 is opened on the inner side of the second support ring frame 3, and an S-pole magnet 32 ​​is installed in the second annular groove 31. Second annular brush plates 33 are connected to both sides of the second support ring frame 3, and a plurality of outer tube outer wall brushes 34 are connected to the inner sides of the two second annular brush plates 33, and the outer tube outer wall brushes 34 are equidistantly distributed along the axis of the second annular brush plate 33. A plurality of gripping parts 35 are connected to the outer side of the second support ring frame 3, and the gripping parts 35 are equidistantly distributed along the axis of the second support ring frame 3, and the outer side of the N-pole magnet 22 and the inner side of the S-pole magnet 32 ​​attract each other.

[0025] It should be noted that: the first support ring frame 2 is slidably connected to the outer side of the atomizing water curtain pressure wind inner driving pipe 11, as the main supporting structure of the cleaning component, driving other components to perform cleaning operations, the first annular groove 21 is located on the outer side of the first support ring frame 2, and the N-pole magnet 22 is installed in the first annular groove 21, which is used to interact with the S-pole magnet in the moving component to achieve reciprocating movement of the cleaning component. The first annular brush plate 23 is the main brushing component of the cleaning component, and the scale in the atomizing chamber is cleaned by the inner tube outer wall brush 24 and the outer tube inner wall brush 25. The inner tube outer wall brush 24 is used to clean the outer wall of the atomizing water curtain pressure wind inner driving pipe 11 and remove the attached scale. The outer tube inner wall brush 25 is used to clean the inner wall of the atomizing water curtain outer nozzle 1 and remove the attached scale. The water flow hole 26 is opened on the inner side of the first support ring frame 2 to allow water to flow through, ensuring that during the cleaning process, the water flow in the atomizing chamber will not be too much obstructed and maintain a normal atomization process. The second support ring frame 3 is slidably connected to the outer side of the atomizing water curtain outer nozzle 1, and is located on the side close to the first support ring frame 2. As the main support structure of the moving assembly, it drives the cleaning assembly to move back and forth. The second annular groove 31 is located on the inner side of the second support ring frame 3. The S-pole magnet 32 ​​is installed in the second annular groove 31, which is used to interact with the N-pole magnet 22 in the cleaning assembly to achieve the reciprocating movement of the cleaning assembly. The second annular brush plate 33 is used as an auxiliary brushing component of the moving assembly to clean the outer wall of the atomizing water curtain outer nozzle 1 through the outer tube outer wall brush 34. The grasping part 35 is connected to the outer side of the second support ring frame 3 and is equidistantly distributed along the axis of the second support ring frame 3. It is convenient for operators to grasp and move the second support ring frame 3 for cleaning and maintenance operations. The outer side of the N-pole magnet 22 and the inner side of the S-pole magnet 32 ​​attract each other, and the connection between the first support ring frame 2 and the second support ring frame 3 is achieved through the interaction of the magnets. In the process of moving through the grasping part 35, the inner tube outer wall brush 24 and the outer tube inner wall brush 25 respectively scrub the outer wall of the atomizing water curtain pressure wind inner driving tube 11 and the inner wall of the atomizing water curtain outer nozzle 1 to remove the attached scale. At the same time, the outer tube outer wall brush 34 cleans the outer wall of the atomizing water curtain outer nozzle 1. The cleaning component and the moving component can work together to effectively clean the scale inside and outside the atomizing chamber, maintain the normal operation of the device, and improve the airflow purification effect. The mutual attraction between the N-pole magnet 22 and the S-pole magnet 32 ​​provides a non-contact driving force. Since the magnetic force is uniformly applied to the support ring frame, it can provide sufficient driving force to overcome the friction between the brush and the tube wall to achieve stable sliding. The equidistant distribution design of the brush can reduce the resistance during the sliding process. Since the brushes are equidistantly distributed, their contact with the tube wall during the sliding process is uniform, and no local friction hot spots are formed, thereby reducing the sliding resistance. The equidistantly distributed brushes reduce the uneven friction during the sliding process, which can make the sliding more stable.

[0026] In an embodiment of the present invention, the fixing assembly includes a mounting plate 4, and the mounting plate 4 is located at the outer top of the atomizing water curtain outer nozzle 1, and the mounting plate 4 is a cross structure, and the four corners of the mounting plate 4 are provided with fixing holes 41, and each fixing hole 41 has a fixing rod 42, and the bottom of the mounting plate 4 is connected to the support rod 43 on both sides, and the bottom of the two support rods 43 is connected to the support plate 44, and the bottom of the support plate 44 is provided with an abutment plate 45, and the bottom of the abutment plate 45 is located at the outer top of the atomizing water curtain outer nozzle 1 and abuts, and the top of the abutment plate 45 is connected to the guide plate 45 on both sides. Rod 46, the tops of the two guide rods 46 penetrate the support plate 44 and are connected to the limiting block, the outer bottoms of the two guide rods 46 are sleeved with return springs 47, and the return springs 47 are located between the abutment plate 45 and the support plate 44, the fixing assembly also includes a U-shaped frame 5, and the U-shaped frame 5 is located at the outer bottom of the outer nozzle 1 of the atomizing water curtain, and the tops of both sides of the U-shaped frame 5 are provided with bending portions 51, and the support plate 44 is provided with a slot 52 for the bending portion 51 to pass through, and both sides of the U-shaped frame 5 are installed with extrusion portions 53, and the extrusion portion 53 is located below the bending portion 51.

[0027] It should be noted that the mounting plate 4 is a cross structure, and fixing holes 41 are provided at the four corners. As the main supporting structure of the fixing assembly, it is fixed in an appropriate position through the fixing holes 41 and the fixing rods 42. The supporting rods 43 are connected to the bottom of the mounting plate 4 on both sides, and the supporting plate 44 is connected to the bottom of the supporting rods 43 to provide support for the abutment plate 45, ensuring that the abutment plate 45 can stably abut against the outer top of the atomizing water curtain outer nozzle 1. Through the abutment effect, the atomizing water curtain outer nozzle 1 is fixed in an appropriate position to prevent it from moving. The guide rod 46 is connected to the top of the abutment plate 45 on both sides, and the top passes through the support plate 44 and is connected to the limiting block, providing a guiding effect for the abutment plate 45 to ensure its stability during the up and down movement. The limiting block prevents the guide rod 46 from escaping from the support plate 44. The return spring 47 is sleeved on the outer bottom of the guide rod 46 and is located between the abutment plate 45 and the support plate 44. When the abutment plate 45 is moved upward by an external force, the return spring 47 is compressed to store elastic potential energy. When the external force disappears, the return spring 47 releases the elastic potential energy and pushes the abutment plate 45 downward to make it tightly abut against the outer top of the atomizing water curtain outer nozzle 1. Through the return force provided by the return spring 47, the abutment plate 45 can always maintain a tight abutment state with the atomizing water curtain outer nozzle 1 to prevent it from moving during operation. The setting of the return spring 47 will not excessively squeeze the atomizing water curtain outer nozzle 1 to prevent the atomizing water curtain outer nozzle 1 from being deformed or damaged, affecting the normal operation of the device. The U-shaped frame 5 is an auxiliary support structure for the fixed component. The U-shaped frame 5 is made of elastic material and will deform when subjected to external force. When the external force disappears, it can return to its original state, thereby generating elastic force. The U-shaped frame 5 is connected to the support plate 44 through the cooperation of the bending part 51 and the slot 52, so as to hold up the outer nozzle 1 of the atomizing water curtain to prevent the outer nozzle 1 of the atomizing water curtain from moving during operation. The extrusion part 53 is installed on both sides of the U-shaped frame 5 and is located below the bending part 51. Through the extrusion effect, the extrusion part 53 can make the bending part 51 disengage from the slot 52, so as to achieve the separation of the U-shaped frame 5 and the support plate 44. When it is necessary to disassemble or adjust the fixed component, the extrusion part 53 is operated to apply an inward extrusion force to the bending part 51, so that the bending part 51 is disengaged from the slot 52, thereby releasing the connection between the U-shaped frame 5 and the support plate 44. As an auxiliary supporting structure of the fixed component, the U-shaped frame 5 realizes the stable fixation and convenient disassembly of the outer nozzle 1 of the atomizing water curtain through the cooperation of the bending part 51 and the slot 52 and the action of the extrusion part 53. This provides convenience for the installation, maintenance and adjustment of the nozzleless air flow purification device for coal mines, while ensuring the stability and reliability of the device during operation.

[0028] The working principle of the nozzle-free air flow purification device for coal mines provided by the present invention is as follows: Atomization process: water pressure is introduced through the downhole static water quick connector 13, so that water is sprayed out from the outer tube nozzle 16 of the outer nozzle 1 of the atomizing water curtain; wind pressure is introduced through the downward pressure air quick connector 14, so that the airflow is sprayed out from the inner tube nozzle 17 of the atomizing water curtain pressure wind inner drive tube 11. After the water is sprayed out from the outer tube nozzle 16, it meets the airflow sprayed from the inner tube nozzle 17, forming fine water mist particles in the atomizing chamber. The formed water mist particles flow with the wind flow to adsorb and purify the dust and harmful gases in the wind flow.

[0029] Cleaning process: During the cleaning process, the outer nozzle 1 of the atomizing water curtain can be separated from the fixed component, and the second support ring frame 3 can be made to slide on the outside of the outer nozzle 1 of the atomizing water curtain by pushing the gripping part 35. At the same time, the second support ring frame 3 can drive the first support ring frame 2 to move through the mutual attraction between the N-pole magnet 22 and the S-pole magnet 32. During the movement, the inner tube outer wall brush 24 and the outer tube inner wall brush 25 respectively brush the outer wall of the atomizing water curtain compressed air inner drive tube 11 and the inner wall of the outer nozzle 1 of the atomizing water curtain to remove the attached scale; the outer tube outer wall brush 34 cleans the outer wall of the outer nozzle 1 of the atomizing water curtain. Finally, the backwashing system is connected through the backwashing quick connector 15, and the water flow provided by the backwashing system is introduced into the outer nozzle 1 of the atomizing water curtain to flush the scale and impurities in the tube to keep the tube clean and unobstructed.

[0030] Fixing process: Fix the mounting plate 4 in a proper position through the fixing hole 41 and the fixing rod 42, lift the outer nozzle 1 of the atomizing water curtain through the U-shaped frame 5 and connect it to the support plate 44 through the cooperation of the bending part 51 and the slot 52. At the same time, the abutment plate 45 is tightly abutted against the outer top of the outer nozzle 1 of the atomizing water curtain under the action of the reset spring 47 to prevent it from moving. The reset spring 47 provides a reset force to ensure that the abutment plate 45 always maintains a tight abutment state. By operating the extrusion part 53, the bending part 51 can be separated from the slot 52, so that the U-shaped frame 5 and the support plate 44 can be separated, which is convenient for disassembling or adjusting the fixing components.

[0031] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A nozzle-free air flow purification device for coal mines, characterized in that: include: Atomizing water curtain outer nozzle (1); An atomizing water curtain pressure wind inner driving pipe (11) is arranged inside the atomizing water curtain outer nozzle (1), and a cavity formed by the outer side of the atomizing water curtain pressure wind inner driving pipe (11) and the inner side of the atomizing water curtain outer nozzle (1) is an atomizing chamber; Wherein, a cleaning component is provided in the atomizing chamber, and the scale in the atomizing chamber can be cleaned by the cleaning component; A moving component is provided at one end of the outer side of the atomizing water curtain outer nozzle (1) and located close to the cleaning component, and the cleaning component can be driven to move back and forth in the atomizing chamber by the moving component; A plurality of fixing components are provided on the outer side of the atomizing water curtain outer nozzle (1), and the fixing components can facilitate installation and layout of the atomizing water curtain outer nozzle (1); One end of the atomizing water curtain outer nozzle (1) is connected to a connector (12), and the top of the connector (12) is connected to a downhole static pressure water quick connector (13); one end of the atomizing water curtain pressure air inner drive pipe (11) close to the connector (12) passes through the connector (12) and is connected to a down-pressure air quick connector (14); and one end of the atomizing water curtain outer nozzle (1) away from the connector (12) is connected to a backwash quick connector (15).

2. The nozzle-free air flow purification device for coal mines according to claim 1, characterized in that: A plurality of outer tube nozzles (16) are provided on the outer side of the atomizing water curtain outer nozzle (1) in the direction of the axis, and a plurality of inner tube nozzles (17) are provided on the outer side of the atomizing water curtain compressed air inner drive tube (11) in the direction of the axis, and the outer tube nozzles (16) and the inner tube nozzles (17) are arranged in a staggered manner.

3. The nozzle-free air flow purification device for coal mines according to claim 2, characterized in that: The cleaning assembly comprises a first support ring frame (2) slidably connected to the outer side of the atomizing water curtain pressure air inner driving pipe (11), and a first annular groove (21) is provided on the outer side of the first support ring frame (2), an N-pole magnet (22) is installed in the first annular groove (21), and first annular brush plates (23) are connected to both sides of the first support ring frame (2).

4. The nozzle-free air flow purification device for coal mines according to claim 3, characterized in that: The inner sides of the two first annular brush plates (23) are connected to a plurality of inner tube outer wall brushes (24), and the inner tube outer wall brushes (24) are evenly spaced along the axis of the first annular brush plates (23); the outer sides of the first annular brush plates (23) are connected to a plurality of outer tube inner wall brushes (25), and the outer tube inner wall brushes (25) are evenly spaced along the axis of the first annular brush plates (23); and the inner side of the first supporting ring frame (2) is provided with a plurality of water flow holes (26) for water flow to pass through.

5. The nozzle-free air flow purification device for coal mines according to claim 4, characterized in that: The moving assembly comprises a second support ring frame (3) slidably connected to the outer side of the atomizing water curtain outer nozzle (1), and the second support ring frame (3) is located on a side close to the first support ring frame (2), a second annular groove (31) is provided on the inner side of the second support ring frame (3), an S-pole magnet (32) is installed in the second annular groove (31), and second annular brush plates (33) are connected to both sides of the second support ring frame (3).

6. The nozzle-free air flow purification device for coal mines according to claim 5, characterized in that: The inner sides of the two second annular brush plates (33) are each connected to a plurality of outer tube outer wall brushes (34), and the outer tube outer wall brushes (34) are evenly spaced along the axis of the second annular brush plates (33); the outer side of the second support ring frame (3) is connected to a plurality of gripping portions (35), and the gripping portions (35) are evenly spaced along the axis of the second support ring frame (3).

7. The nozzle-free air flow purification device for coal mines according to claim 6, characterized in that: The outer side of the N-pole magnet (22) and the inner side of the S-pole magnet (32) attract each other.

8. The nozzle-free air flow purification device for coal mines according to claim 7, characterized in that: The fixing assembly comprises a mounting plate (4), and the mounting plate (4) is located at the outer top of the atomizing water curtain outer nozzle (1), and the mounting plate (4) is in a cross structure, and fixing holes (41) are provided at four corners of the mounting plate (4), and each fixing hole (41) has a fixing rod (42), and both sides of the bottom of the mounting plate (4) are connected to support rods (43), and the bottoms of the two support rods (43) are connected to support plates (44).

9. The nozzle-free air flow purification device for coal mines according to claim 8, characterized in that: An abutment plate (45) is provided at the bottom of the support plate (44), and the bottom of the abutment plate (45) is located at the outer top of the atomizing water curtain outer nozzle (1) for abutment, and both sides of the top of the abutment plate (45) are connected to guide rods (46), and the tops of the two guide rods (46) penetrate the support plate (44) and are connected to the limit block, and the outer bottoms of the two guide rods (46) are sleeved with return springs (47), and the return springs (47) are located between the abutment plate (45) and the support plate (44).

10. The nozzle-free air flow purification device for coal mines according to claim 9, characterized in that: The fixing assembly further comprises a U-shaped frame (5), and the U-shaped frame (5) is located at the outer bottom of the atomizing water curtain outer nozzle (1), and the tops of both sides of the U-shaped frame (5) are provided with bending portions (51), and the support plate (44) is provided with a slot (52) for the bending portion (51) to pass through, and the two sides of the U-shaped frame (5) are installed with an extrusion portion (53), and the extrusion portion (53) is located below the bending portion (51).

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