Anti-blocking atomizing nozzle and spray dust-settling system

Abstract

The utility model discloses a kind of anti-blocking atomization spray head and spray dust-settling system, anti-blocking atomization spray head includes spray head body, cap and clearing needle, spray head body has liquid passage, gas passage and first spray hole, one end of liquid passage is used to connect water source, other end is communicated with first spray hole, the cross section of first spray hole is less than the cross section of liquid passage, a part of clearing needle passes through first spray hole and is slidable relative to first spray hole, and atomization passage is formed between the outer wall of clearing needle and the hole wall of first spray hole;One end of first spray hole penetrates spray head body to form orifice, cap cover is arranged in first spray hole and is connected with spray head body, cap has second spray hole, one end of gas passage is used to connect gas source, other end is communicated with second spray hole, and the orifice of first spray hole is arranged in second spray hole.The anti-blocking atomization spray head of the utility model embodiment, when blocking, automatic dredging can be realized using clearing needle and water pressure impact, improve the service life of atomization spray head.

Description

Technical Field

[0001] This utility model relates to the technical field of anti-clogging nozzles, specifically to an anti-clogging atomizing nozzle and a spray dust suppression system. Background Technology

[0002] Coal mines typically employ spray dust suppression systems, but the small nozzle orifices and high levels of impurities in the water (such as suspended solids, oily substances, and scale) make these nozzles prone to clogging. While some technologies reduce clogging by adding filters, this requires frequent filter replacements, making operation cumbersome and maintenance costs high. Utility Model Content

[0003] This utility model aims to at least partially solve one of the technical problems in the related art.

[0004] Therefore, embodiments of this utility model propose an anti-clogging atomizing nozzle. When clogging occurs, the unclogging needle is moved away from the first nozzle, increasing the water passage area within the first nozzle. This allows the first nozzle to be flushed with water pressure. Simultaneously, the unclogging needle is controlled to slide back and forth, using the unclogging needle and water pressure to clear the blockage, thereby ensuring the continuous use of the anti-clogging atomizing nozzle and improving its service life.

[0005] The anti-clogging atomizing nozzle of this utility model embodiment includes a nozzle body, a cap, and a clearing needle. The nozzle body has a liquid channel, a gas channel, and a first spray hole. One end of the liquid channel is used to connect to a water source, and the other end of the liquid channel is connected to the first spray hole. The cross-section of the first spray hole is smaller than the cross-section of the liquid channel. A portion of the clearing needle passes through the first spray hole and is slidable relative to the first spray hole. An atomizing channel is formed between the outer wall of the clearing needle and the hole wall of the first spray hole. One end of the first spray hole penetrates the nozzle body to form an orifice. The cap is placed over the first spray hole and connected to the nozzle body. The cap has a second spray hole. One end of the gas channel is used to connect to a gas source, and the other end of the gas channel is connected to the second spray hole. The orifice of the first spray hole is arranged inside the second spray hole.

[0006] In some embodiments, the anti-clogging atomizing nozzle further includes a driving device having a movable end movable along the extension direction of the unclogging needle, the movable end being connected to the unclogging needle.

[0007] In some embodiments, the driving device includes a driving member, a gear, and a moving member, the moving member having a moving end and a rack portion meshing with the gear, and the driving member being used to drive the gear to rotate.

[0008] In some embodiments, the movable element is a rack shaft connected to the unclogging needle. The rack shaft has a rack portion, which includes a plurality of teeth evenly distributed along the extending direction of the rack shaft, and the teeth surround the rack shaft circumferentially.

[0009] In some embodiments, the anti-clogging atomizing nozzle further includes a sealing cylinder connected to the nozzle body, a portion of the unclogging needle slidably passing through the sealing cylinder, and the outer wall of the unclogging needle fitting against the inner wall of the sealing cylinder.

[0010] In some embodiments, the nozzle body includes a mounting base and a connector. The mounting base has an air inlet, a liquid inlet, and a through mounting hole. A portion of the connector is inserted into the mounting hole and connected to the mounting base. A portion of the liquid channel is formed in the mounting base and communicates with the liquid inlet, while another portion is formed in the connector. The connector has the first spray hole. A portion of the gas channel is formed in the mounting base and communicates with the air inlet, while another portion is formed in the connector.

[0011] In some embodiments, the connector includes a nozzle section, at least a portion of the first nozzle is formed within the nozzle section, the nozzle section is inserted into the second nozzle, and an acceleration channel is formed between the outer wall of the nozzle section and the wall of the second nozzle. A portion of the cap is spaced apart from the nozzle body to form an air chamber. Both the gas channel and the acceleration channel are connected to the air chamber. The size of the air chamber in the radial direction of the first nozzle gradually decreases along the direction closer to the second nozzle. The size of the acceleration channel in the radial direction of the first nozzle is smaller than the size of the air chamber in the radial direction of the first nozzle.

[0012] In some embodiments, the cross-section of the first nozzle is smaller than the cross-section of the liquid channel.

[0013] The spray dust suppression system of this utility model embodiment includes the anti-clogging atomizing nozzle described in any of the above embodiments.

[0014] In some embodiments, the spray dust suppression system further includes a control unit and a monitoring device for monitoring the clogging of the anti-clogging atomizing nozzle, wherein the monitoring device and the drive are both electrically connected to the control unit.

[0015] In this embodiment of the anti-clogging atomizing nozzle, the unclogging needle can slide within the first spray hole. Under normal operating conditions, an atomization channel is formed between the unclogging needle and the wall of the first spray hole. Water is introduced into the liquid channel, and the water enters the atomization channel through the liquid channel. Due to the small size of the atomization channel, the water can form finer droplets after passing through the atomization channel, achieving initial atomization of the water. At the same time, air is introduced into the gas channel, and the gas enters the second spray hole through the gas channel, further dispersing the droplets ejected from the orifice of the first spray hole, achieving secondary atomization of the water, thereby obtaining even smaller droplets, which are then ejected from the second spray hole to achieve a better dust suppression effect.

[0016] When the atomizing channel becomes clogged, the unblocking needle is moved away from the first nozzle, causing it to disengage from the first nozzle. This increases the water passage area within the first nozzle, putting the unblocking needle in an unblocked state. Water pressure can then be used to flush the first nozzle and clear the blockage. If the blockage is severe and water pressure alone is insufficient, the unblocking needle can be controlled to slide back and forth, using the combination of the needle and water pressure to clear the blockage. This ensures the continuous use of the anti-clogging atomizing nozzle and extends its lifespan. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the anti-clogging atomizing nozzle of one embodiment of the present invention.

[0018] Figure 2 This is a cross-sectional view of the unclogging needle of the anti-clogging atomizing nozzle in normal working condition according to an embodiment of this utility model.

[0019] Figure 3 This is a cross-sectional view of the unclogging needle of the anti-clogging atomizing nozzle in the unclogging state according to an embodiment of the present invention.

[0020] Figure 4 hour Figure 2 Enlarged diagram of point A in the middle.

[0021] Figure 5 This is a schematic diagram of the structure of an anti-clogging atomizing nozzle with a cap removed according to an embodiment of the present invention.

[0022] Figure label: 100. Anti-clogging atomizing nozzle; 1. Mounting base; 11. Air inlet; 12. Liquid inlet; 13. Mounting hole; 14. First annular groove; 2. Connector; 21. First nozzle; 22. Liquid guide hole; 23. First section; 24. Second section; 241. Air guide hole; 242. Second annular groove; 25. Transition section; 26. Nozzle section; 3. Cap; 31. Second nozzle; 32. Air chamber; 33. Third nozzle; 4. Clearing pin; 41. Clearing section; 42. Intermediate section; 43. Connecting section; 5. Drive unit; 51. Stepper motor; 52. Gear; 53. Rack shaft; 531. Rack section; 6. Sealing cylinder. Detailed Implementation

[0023] The embodiments of the present invention are described in detail below, examples of which are shown 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.

[0024] like Figures 1 to 3 As shown, the anti-clogging atomizing nozzle 100 of this utility model embodiment includes a nozzle body, a cap 3, and a clearing needle 4. The nozzle body has a liquid channel, a gas channel, and a first nozzle hole 21. One end of the liquid channel is used to connect to a water source, and the other end of the liquid channel is connected to the first nozzle hole 21. The cross-section of the first nozzle hole 21 is smaller than the cross-section of the liquid channel. A portion of the clearing needle 4 passes through the first nozzle hole 21 and is slidable relative to the first nozzle hole 21. An atomizing channel is formed between the outer wall of the clearing needle 4 and the hole wall of the first nozzle hole 21. One end of the first nozzle hole 21 penetrates the nozzle body to form an orifice. The cap 3 covers the first nozzle hole 21 and is connected to the nozzle body. The cap 3 has a second nozzle hole 31. One end of the gas channel is used to connect to a gas source, and the other end of the gas channel is connected to the second nozzle hole 31. The orifice of the first nozzle hole 21 is arranged inside the second nozzle hole 31.

[0025] In this embodiment of the utility model, the anti-clogging atomizing nozzle 100 has a slidable unclogging needle 4 within the first spray hole 21. Under normal operating conditions, an atomizing channel is formed between the unclogging needle 4 and the wall of the first spray hole 21. Water is introduced into the liquid channel, and the water enters the atomizing channel through the liquid channel. Due to the small size of the atomizing channel, the water can form finer droplets after passing through the atomizing channel, achieving initial atomization of the water. At the same time, air is introduced into the gas channel, and the gas enters the second spray hole 31 through the gas channel, further dispersing the droplets ejected from the orifice of the first spray hole 21, achieving secondary atomization of the water, thereby obtaining even smaller droplets, which are then ejected from the second spray hole 31 to achieve a better dust suppression effect.

[0026] When the atomizing channel becomes blocked, the unblocking needle 4 is moved away from the first nozzle 21. The water passage area of ​​the unblocking needle 4 increases as it moves away from the first nozzle 21. At this time, the unblocking needle 4 is in the unblocking state, and the first nozzle 21 can be flushed with water pressure to clear the blockage. If the blockage is severe and water pressure alone is not enough to clear it, the unblocking needle 4 can be controlled to slide back and forth. The unblocking can be cleared by the unblocking needle 4 and the water pressure impact, thereby ensuring the continuous use of the anti-clogging atomizing nozzle 100 and improving the service life of the atomizing nozzle.

[0027] Optionally, the diameter of the first nozzle 21 is 2~3mm.

[0028] Optionally, the diameter of the second nozzle 31 is 3~4mm.

[0029] Specifically, such as Figure 2 and Figure 4 As shown, the unblocking needle 4 includes an unblocking section 41, an intermediate section 42, and a connecting section 43 connected sequentially along its extension direction. The diameters of the unblocking section 41, the intermediate section 42, and the connecting section 43 increase sequentially. The unblocking section 41 and the intermediate section 42 are located inside the nozzle body. The unblocking section 41 is used to insert into the first nozzle 21 and form an atomization channel with the hole wall of the first nozzle 21. The connecting section 43 passes through the nozzle body and one end is located inside the nozzle body, while the other end of the connecting section 43 is located outside the nozzle body, so as to control the sliding of the unblocking needle 4 by using the end of the connecting section 43 located outside the nozzle body.

[0030] The diameter of the unclogging section 41 is 1.5 mm, the diameter of the first nozzle 21 is 2.5 mm, and the diameter of the second nozzle 31 is 4 mm. Therefore, the gap between the outer wall of the unclogging section 41 and the wall of the first nozzle 21 is 0.5 mm, which means the size of the atomization channel is 0.5 mm. Thus, after primary and secondary atomization, the droplet size ejected from the second nozzle 31 can reach 10 μm.

[0031] In some embodiments, the anti-clogging atomizing nozzle 100 further includes a driving device 5, which has a movable end that is movable along the extension direction of the unclogging needle 4 and is connected to the unclogging needle 4.

[0032] In some embodiments, the drive device 5 includes a drive member, a gear 52, and a moving member. The moving member has a moving end and a rack portion 531 that meshes with the gear 52. The drive member is used to drive the gear 52 to rotate.

[0033] Optionally, the driving component is a stepper motor 51.

[0034] The stepper motor 51 can drive the cleaning needle 4 to move back and forth automatically in order to switch the state of the cleaning needle 4.

[0035] In some embodiments, the movable element is a rack shaft 53, which is connected to the unclogging needle 4. The rack shaft 53 has a rack portion 531, which includes a plurality of teeth evenly distributed along the extending direction of the rack shaft 53, and the teeth surround the rack shaft 53 circumferentially.

[0036] Therefore, even if the unblocking needle 4 rotates a certain angle around its own circumference during long-term use, the rack shaft 53 can still maintain meshing with the gear 52, ensuring the normal use of the unblocking needle 4.

[0037] Specifically, such as Figure 1 and Figure 2 As shown, the drive device 5 is located on the outside of the nozzle body. The rack shaft 53 and the unclogging needle 4 are coaxially arranged. The end of the rack shaft 53 is integrally formed with the connecting section 43. The rack part 531 is located near the end of the rack shaft 53 away from the connecting section 43. The rack part 531 includes a plurality of teeth that surround the rack shaft 53 circumferentially. The axis of the gear 52 is perpendicular to the axis of the rack shaft 53. The gear 52 is connected to the output shaft of the stepper motor 51. The stepper motor 51 is connected to a fixed base. The fixed base can realize the fixed installation of the stepper motor 51, thereby improving the stability of the gear 52 installation. The stepper motor 51 can drive the gear 52 to rotate in the forward and reverse directions, thereby driving the unclogging needle 4 to slide back and forth.

[0038] In some embodiments, the anti-clogging atomizing nozzle 100 further includes a sealing cylinder 6, which is connected to the nozzle body. A portion of the unclogging needle 4 slidably passes through the sealing cylinder 6, and the outer wall of the unclogging needle 4 is in contact with the inner wall of the sealing cylinder 6.

[0039] In some embodiments, the nozzle body includes a mounting base 1 and a connector 2. The mounting base 1 has an air inlet 11, a liquid inlet 12, and a through mounting hole 13. A portion of the connector 2 is inserted into the mounting hole 13 and connected to the mounting base 1 through one end of the mounting hole 13. A portion of the liquid channel is formed in the mounting base 1 and communicates with the liquid inlet 12, while the other portion is formed in the connector 2. The connector 2 has the aforementioned first nozzle 21. A portion of the gas channel is formed in the mounting base 1 and communicates with the air inlet 11, while the other portion is formed in the connector 2.

[0040] In some embodiments, the cross-section of the first nozzle 21 is smaller than the cross-section of the liquid channel.

[0041] Specifically, such as Figure 2 and Figure 3 As shown, the mounting base 1 is columnar, and its extension direction is perpendicular to the extension direction of the unclogging needle 4. Taking the vertical installation of the mounting base 1 as an example, the upper end of the mounting base 1 has the above-mentioned air inlet 11, the lower end has the above-mentioned liquid inlet 12, the mounting hole 13 is provided through the mounting base 1, and the axial direction of the mounting hole 13 is perpendicular to the extension direction of the mounting base 1. The air inlet 11 and the mounting hole 13 are independent of each other, and the upper end of the liquid inlet 12 is connected to the mounting hole 13.

[0042] Both the connector 2 and the sealing cylinder 6 are coaxially arranged with the mounting hole 13. The connector 2 includes a first section 23 and a second section 24 that are connected to each other. The outer diameter of the first section 23 is smaller than the outer diameter of the second section 24. The first section 23 of the connector 2 and a part of the sealing cylinder 6 are respectively inserted into the mounting hole 13 from both ends of the mounting hole 13 and are sealed to the mounting base 1. The connector 2 has a liquid guiding hole 22 and a first spray hole 21 extending along its own axis. Both the first spray hole 21 and the liquid guiding hole 22 are coaxial with the connector 2. The first spray hole 21 and the liquid guiding hole 22 are respectively passed through both ends of the connector 2. The liquid guiding hole 22 is closer to the sealing cylinder 6 than the first spray hole 21. The end faces of the connector 2 and the sealing cylinder 6 are arranged at intervals to form a connecting channel between them for the liquid inlet hole 12 and the liquid guiding hole 22. Thus, the liquid inlet hole 12, the connecting channel and the liquid guiding hole 22 constitute the above-mentioned liquid channel. Water is injected into the liquid inlet hole 12, and the water enters the atomization channel through the liquid channel and is sprayed out through the first spray hole 21, which can realize the initial atomization of the water.

[0043] The sealing cylinder 6 has a through-hole cavity, and the connecting section 43 of the unblocking needle 4 passes through the cavity. The connecting section 43 slides and seals with the cavity wall, thereby preventing water from leaking out from the connection between the unblocking needle 4 and the cavity.

[0044] Mounting base 1 also has a first annular groove 14 arranged circumferentially around mounting hole 13, the first annular groove 14 communicating with air inlet hole 11, the side of the first annular groove 14 facing away from air inlet hole 11 opening towards connector 2 and forming a first annular opening; the end face of the second section 24 of connector 2 is attached to mounting base 1, the second section 24 of connector 2 has multiple air guide holes 241 and a second annular groove 242 arranged circumferentially around itself, one side of the second annular groove 242 opening towards mounting base 1 to form a second annular opening, the first annular groove 14 and The second annular groove 242 is interconnected through the first annular opening and the second annular opening; the air guide hole 241 gradually approaches the axis of the connector 2 along the direction from the first section 23 to the second section 24 of the connector 2, that is, the air guide hole 241 extends obliquely, one end of the air guide hole 241 is connected to the second annular groove 242, and the other end penetrates the end face of the connector 2 away from the mounting base 1, and multiple air guide holes 241 are evenly distributed along the circumference of the connector 2; thus, the air inlet 11, the first annular groove 14, the second annular groove 242 and multiple air guide holes 241 constitute the above-mentioned gas channel.

[0045] In some embodiments, the connector 2 includes a nozzle section 26, at least a portion of the first nozzle 21 is formed in the nozzle section 26, the nozzle section 26 is inserted into the second nozzle 31, and an acceleration channel is formed between the outer wall of the nozzle section 26 and the wall of the second nozzle 31; a portion of the cap 3 is spaced apart from the nozzle body to form an air chamber 32, both the gas channel and the acceleration channel are connected to the air chamber 32, the size of the air chamber 32 in the radial direction of the first nozzle 21 gradually decreases in the direction close to the second nozzle 31, and the size of the acceleration channel in the radial direction of the first nozzle 21 is smaller than the size of the air chamber 32 in the radial direction of the first nozzle 21.

[0046] As the cross-section of the air chamber 32 gradually decreases, the gas can be initially accelerated. Then, it enters the acceleration channel for further acceleration. Finally, the gas is ejected at high speed from the acceleration channel and impacts the droplets ejected from the first nozzle 21, further dispersing the droplets and forming finer droplets to achieve a better atomization dust removal effect.

[0047] Specifically, such as Figure 4 and Figure 5 As shown, the connector 2 also includes a transition section 25 and a nozzle section 26. The first section 23, the second section 24, the transition section 25 and the nozzle section 26 are connected in sequence and integrally formed. The first nozzle 21 is formed inside the transition section 25 and the nozzle section 26. The outer contour of the second section 24 is stepped, and its cross-section gradually decreases from the first section 23 to the transition section 25. The outer diameter of the transition section 25 is smaller than the outer diameter of the second section 24, and the outer diameter of the nozzle section 26 is smaller than the outer diameter of the transition section 25.

[0048] The cap 3 is placed on the end of the connector 2 away from the mounting base 1 and is sealed to the second section 24 of the connector 2. The side of the cap 3 facing the connector 2 includes a first arc surface, and the outer side wall of the transition section 25 is a second arc surface. The first arc surface and the second arc surface are arranged at intervals to form the air cavity 32 between the cap 3 and the connector 2. The air cavity 32 is connected to the air guide hole 241, that is, the air cavity 32 is connected to the gas channel.

[0049] The second nozzle 31 is provided through the cap 3. A portion of the nozzle section 26 is inserted into the second nozzle 31 and the end of the nozzle section 26 is located inside the second nozzle 31. The outer diameter of the nozzle section 26 is smaller than the inner diameter of the second nozzle 31, so as to form an acceleration channel between the outer wall of the nozzle section 26 and the hole wall of the second nozzle 31. The acceleration channel is connected to the gas channel.

[0050] The cap 3 also has a third nozzle 33. The end of the cap 3 away from the connector 2 has a U-shaped groove, through which the second nozzle 31 passes. There are two third nozzles 33, which are located on the upper and lower sides of the cap 3 and are connected to the air chamber 32. The axis of the third nozzle 33 extends obliquely from the direction away from the connector 2 toward the axis of the second nozzle 31 and passes inward through the side wall of the U-shaped groove.

[0051] Gas is introduced into the air inlet 11 and enters the air chamber 32 through the gas channel. Part of the gas enters the acceleration channel through the air chamber 32 and is ejected at high speed through the acceleration channel. Another part of the gas enters the third nozzle 33 through the air chamber 32 and is ejected from the third nozzle 33 towards the U-shaped groove at the end of the cap 3. Thus, the gas ejected from the second nozzle 31 and the third nozzle 33 can simultaneously impact the droplets ejected from the first nozzle 21, thereby forming finer droplets to achieve a better atomization dust removal effect.

[0052] The spray dust suppression system of this utility model includes the anti-clogging atomizing nozzle 100 of any of the above embodiments.

[0053] The spray dust suppression system of this utility model adopts the anti-clogging atomizing nozzle 100 in the above embodiment, which can obtain smaller droplets to achieve a better spray dust suppression effect. Furthermore, when the atomization channel is blocked, the unclogging needle 4 is moved away from the first nozzle 21. The unclogging needle 4 is separated from the water passage area in the first nozzle 21, and the unclogging needle 4 is in the unclogging state. The first nozzle 21 can be flushed with water pressure to clear the blockage. If the blockage is more serious and water pressure alone cannot clear it, the unclogging needle 4 can be controlled to slide back and forth. The unclogging needle 4 and water pressure impact can be used to clear the blockage, thereby ensuring the continuous use of the anti-clogging atomizing nozzle 100 and improving the service life of the atomizing nozzle.

[0054] In some embodiments, the spray dust suppression system further includes a control unit and a monitoring device for monitoring the clogging of the anti-clogging atomizing nozzle 100, both of which are electrically connected to the control unit.

[0055] The control unit can set the time when the unblocking needle 4 switches to the unblocking state and adjust the unblocking frequency. For example, for water sources with low water quality requirements and poor water quality, the unblocking frequency can be dynamically increased and the unblocking cycle shortened based on water quality data.

[0056] Optionally, the monitoring device includes a flow sensor and a pressure sensor. The liquid inlet 12 of the anti-clogging atomizing nozzle 100 is connected to a water source through a water inlet pipe, and both the flow sensor and the pressure sensor are installed in the water inlet pipe.

[0057] Therefore, the inlet water pressure and flow rate of the anti-clogging atomizing nozzle 100 can be monitored in real time using flow and pressure sensors. When the pressure sensor detects that the inlet water pressure exceeds the preset pressure, or the flow sensor detects that the inlet water flow rate is lower than the preset flow rate, the control unit can control the stepper motor 51 to start, controlling the unclogging needle 4 to move away from the first nozzle 21 and disengage from the first nozzle 21, automatically activating the unclogging mode, using water pressure to clear the blockage. The clearing time is 10-15 seconds. If the blockage is not cleared after the clearing time, the control unit controls the unclogging needle 4 to move back and forth to assist in clearing. After the unclogging is completed, the flow and pressure sensors detect that the inlet water pressure and flow rate have returned to normal, and the control unit controls the stepper motor 51 to start again, controlling the unclogging needle 4 to reset to the normal working state.

[0058] Through real-time feedback from pressure and flow sensors, combined with precise control of the 51 stepper motor, automatic unblocking can be achieved on demand, ensuring the normal operation of the spray dust suppression system.

[0059] Optionally, the preset pressure of the flow sensor is 4 to 10 bar.

[0060] Optionally, a solenoid valve is connected to the water inlet pipe. The solenoid valve can control the opening and closing of the water inlet pipe. When the spray dust suppression system stops, the water inlet pipe can be disconnected by the solenoid valve to prevent dripping from the nozzles.

[0061] In other embodiments, the pressure sensor can be replaced with an infrared optical sensor to indirectly monitor blockages through changes in transmittance.

[0062] The spray dust suppression system of this utility model embodiment has the following effects: Highly efficient anti-clogging: The reciprocating movement of the unclogging needle 4 can remove more than 99% of impurities. Compared with atomizing nozzles in related technologies, this anti-clogging atomizing nozzle 100 can extend its life by 3 to 5 times. Intelligent control: Real-time monitoring and adaptive cleaning logic reduce energy consumption by 40% and minimize manual intervention; Widely applicable: It can treat complex water sources with suspended solids concentration ≤500mg / L and water hardness ≤300ppm.

[0063] It is understandable that the above description of the anti-clogging atomizing nozzle 100 also applies to this spray dust suppression system, and will not be repeated here.

[0064] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0065] 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0066] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," 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 utility model according to the specific circumstances.

[0067] In this utility model, 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," "on top of," and "over" 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.

[0068] In this utility model, 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 this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, 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.

[0069] 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 clog-resistant atomizing nozzle, characterized in that, The device includes a nozzle body, a cap, and a cleaning needle. The nozzle body has a liquid channel, a gas channel, and a first spray hole. One end of the liquid channel is used to connect to a water source, and the other end of the liquid channel is connected to the first spray hole. The cross-section of the first spray hole is smaller than the cross-section of the liquid channel. A portion of the cleaning needle passes through the first spray hole and is slidable relative to the first spray hole. An atomization channel is formed between the outer wall of the cleaning needle and the hole wall of the first spray hole. One end of the first nozzle penetrates the nozzle body to form an orifice. The cap covers the first nozzle and is connected to the nozzle body. The cap has a second nozzle. One end of the gas channel is used to connect to a gas source. The other end of the gas channel is connected to the second nozzle. The orifice of the first nozzle is arranged inside the second nozzle.

2. The anti-clogging atomizing nozzle according to claim 1, characterized in that, The anti-clogging atomizing nozzle also includes a driving device, which has a movable end that is movable along the extension direction of the unclogging needle, and the movable end is connected to the unclogging needle.

3. The anti-clogging atomizing nozzle according to claim 2, characterized in that, The driving device includes a driving member, a gear, and a moving member. The moving member has a moving end and a rack portion that meshes with the gear. The driving member is used to drive the gear to rotate.

4. The anti-clogging atomizing nozzle according to claim 3, characterized in that, The moving part is a rack shaft, which is connected to the unclogging needle. The rack shaft has a rack portion, which includes a plurality of teeth evenly distributed along the extending direction of the rack shaft. The teeth surround the rack shaft circumferentially.

5. The anti-clogging atomizing nozzle according to any one of claims 1-4, characterized in that, The anti-clogging atomizing nozzle also includes a sealing cylinder, which is connected to the nozzle body. A portion of the unclogging needle can slide through the sealing cylinder, and the outer wall of the unclogging needle is in contact with the inner wall of the sealing cylinder.

6. The anti-clogging atomizing nozzle according to claim 5, characterized in that, The nozzle body includes a mounting base and a connector. The mounting base has an air inlet, a liquid inlet, and a through mounting hole. A portion of the connector is inserted into the mounting hole and connected to the mounting base. A portion of the liquid channel is formed in the mounting base and communicates with the liquid inlet, while the other portion is formed in the connector. The connector has a first spray hole. A portion of the gas channel is formed in the mounting base and communicates with the air inlet, while the other portion is formed in the connector.

7. The anti-clogging atomizing nozzle according to claim 6, characterized in that, The connector includes a nozzle section, at least a portion of the first nozzle is formed within the nozzle section, the nozzle section is inserted into the second nozzle, and an acceleration channel is formed between the outer wall of the nozzle section and the wall of the second nozzle. A portion of the cap is spaced apart from the nozzle body to form an air chamber. Both the gas channel and the acceleration channel are connected to the air chamber. The size of the air chamber in the radial direction of the first nozzle gradually decreases along the direction closer to the second nozzle. The size of the acceleration channel in the radial direction of the first nozzle is smaller than the size of the air chamber in the radial direction of the first nozzle.

8. The anti-clogging atomizing nozzle according to claim 6, characterized in that, The cross-section of the first nozzle is smaller than the cross-section of the liquid channel.

9. A spray dust suppression system, characterized in that, The anti-clogging atomizing nozzle includes any one of claims 1-8.

10. The spray dust suppression system according to claim 9, characterized in that, The anti-clogging atomizing nozzle is the anti-clogging atomizing nozzle as described in claim 3; The spray dust suppression system also includes a control unit and a monitoring device for monitoring the clogging of the anti-clogging atomizing nozzle. Both the monitoring device and the drive unit are electrically connected to the control unit.

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