Micro-fog dust falling equipment and method thereof

Abstract

The invention discloses micro-mist dust suppression equipment and method, and the equipment specifically comprises: a nozzle assembly, which adopts the combination of a polypropylene main housing and a 316 stainless steel nozzle, is internally provided with a liquid channel and an annular gas gap, realizes two-stage atomization based on a siphon vibration principle, and generates 5-10 [mu] m superfine fog drops; the nozzle is externally coated with a detachable silica gel protective ring, an inner side spiral flow guide groove guides air flow to be evenly diffused, and the four-direction spraying covering radius is larger than or equal to 1.5 m. Intelligent control: real-time feedback is performed through a distributed humidity and dust sensor, a PID controller is combined to dynamically adjust gas path pressure and water flow, and cooperative safety design is performed: the spraying direction of a nozzle is cooperated with workshop airflow, a fluororubber sealing layer is arranged between a polypropylene shell and a stainless steel nozzle, and a tungsten carbide coating is sprayed outside, so that the corrosion resistance is remarkably improved; the dust removal efficiency is improved by more than or equal to 40%, the humidity fluctuation is less than or equal to + / -3%, the service life of equipment is prolonged to 8-10 years, the dust explosion risk is reduced by 90%, and the device is suitable for high-dust environments such as workshop polishing and mines.

Description

Technical Field

[0001] The present invention relates to the technical field of dust removal, and in particular to a micro-mist dust suppression device and method thereof. Background Art

[0002] Traditional dust removal technologies mainly rely on single-direction spraying or dry filtration methods, but these methods have significant defects in practical applications: 1. Limited dust removal coverage: Single-direction spraying devices usually can only spray in a specific direction, resulting in a large amount of un-covered dust escape areas around the device, and low dust removal efficiency. Dust continuously accumulates in the un-covered areas, not only reducing air quality but also increasing subsequent cleaning costs.

[0003] 2. Insufficient humidity control accuracy: Existing technologies mostly rely on a single dust concentration parameter to adjust the spraying amount, lacking dynamic feedback on humidity. This easily leads to two extreme situations: one is incomplete dust removal when the spraying amount is insufficient; the other is too high environmental humidity when the spraying is excessive, accelerating equipment corrosion and possibly causing electrical failures.

[0004] 3. Poor equipment durability: The nozzles and shells of traditional dust removal equipment are usually made of ordinary metals or plastics. In a long-term high-humidity and high-dust corrosive environment, the nozzles are prone to rust and blockage, and the shells are prone to aging and deformation, resulting in shortened equipment life and increased maintenance frequency.

[0005] 4. Prominent safety hazards: There is an explosion risk when the dust accumulates to a certain concentration, and existing technologies lack a linkage control mechanism for dust concentration and humidity, unable to give early warnings or actively reduce risks in a timely manner. In addition, too high local humidity may form a conductive environment, further exacerbating safety hazards.

[0006] The above problems do not exist in isolation but form a chain reaction: insufficient coverage forces the system to increase the spraying amount to compensate for the dust removal effect, resulting in humidity imbalance; too high humidity accelerates equipment corrosion, further weakening the spraying efficiency and expanding the dust escape area; ultimately, the combined effect of equipment failure and dust accumulation significantly increases the probability of safety accidents.

[0007] Therefore, there is an urgent need for a systematic solution that can simultaneously achieve wide-area coverage dust removal, precise humidity control, corrosion-resistant long-term design, and active safety protection to break through the limitations of traditional technologies. Summary of the Invention

[0008] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides a micro-mist dust suppression device and method thereof.

[0009] To achieve the above object, the innovative points of the present invention are as follows: including: A nozzle assembly, arranged above the workshop grinding equipment, and the nozzle assembly includes: The main shell is made of polypropylene material and is provided with gas circuit interface and water circuit interface; The gas line interface is a Rc1 / 4 threaded interface with a diameter of 10mm, which is used to connect to an external compressed gas source; The water channel interface is a Rc1 / 8 threaded interface with a diameter of 8mm, which is used to connect an external liquid supply device; The nozzle is made of 316 stainless steel, threadedly connected to the main housing, and has an atomizing chamber at the end; A liquid channel is provided in the center of the nozzle, which runs through the axial direction of the nozzle. The diameter of the liquid channel is 2-3mm and is used to transport liquid to the atomization chamber. An annular gap is provided inside the nozzle, which surrounds the outer circumference of the liquid channel and has a width of 0.5-1.0 mm, and is used to transport compressed gas to the atomization chamber; The atomization chamber realizes two-stage atomization based on the siphon vibration principle, generating 5-10μm droplets with an oscillation frequency of 100-200Hz; The removable silicone protective ring is wrapped around the outside of the nozzle. A guide groove is provided inside the silicone protective ring to guide the atomized airflow sprayed from the nozzle to spread evenly; Humidity sensors and dust concentration sensors are distributed and installed on the top of the workshop and the side walls of the grinding equipment; The control module is connected to the humidity sensor, dust concentration sensor and nozzle assembly, and has a built-in PID controller and a Schott average value monitoring unit. It dynamically adjusts the air circuit pressure and water flow rate according to the dust concentration, humidity and droplet diameter. The adjustment range of the air circuit pressure is 1-3 bar, and the adjustment range of the water flow rate is 6-10 UH.

[0010] Furthermore, the gas flow rate of the above-mentioned atomization chamber is 20-30m / s, and the liquid flow rate is 0.5-1.5L / min; The volume of the atomization chamber is 5-8cm 3 , based on the siphon vibration principle to achieve two-stage atomization: Primary atomization: high-speed gas shears the liquid to form coarse droplets of 20-50μm; Secondary atomization: The oscillation frequency of the atomization chamber is 100-200Hz, which further breaks the coarse droplets into 5-10μm.

[0011] Furthermore, the bottom of the nozzle is provided with four spray holes, which can spray in four directions: front, back, left and right. The single-side spray distance is 3800-5800mm, and the coverage radius is ≥1.5 meters. The silicone retainer is connected to the nozzle through a snap-on structure, and the disassembly force is ≤10N, which is easy to clean and maintain.

[0012] Further, the above diversion channels are 6 - 8 spiral grooves, evenly distributed on the inner side of the silica gel gasket, with a groove depth of 0.5 - 1.0 mm and a groove width consistent with the width of the annular gap; The end of the diversion channel is aligned with the spray hole, used to guide the atomized air flow to form rotational diffusion.

[0013] Further, the above control module further includes an alarm module, configured as: When the dust concentration > 10 mg / m³ and the humidity < 60%RH, increase the spray volume to 100%; When the humidity ≥ 75%RH, reduce the spray volume to below 30%; If the dust concentration continuously > 15 mg / m³ and the humidity > 75%RH, trigger the alarm module and stop spraying.

[0014] Further, a fluororubber gasket is provided between the above main housing and the nozzle to prevent electrochemical corrosion; The outer surface of the nozzle is sprayed with a tungsten carbide coating with a thickness of 50 - 100 μm.

[0015] Further, the above control module integrates a remote monitoring terminal, which supports real - time display of dust concentration, humidity, and spray volume data, and can manually adjust the spray parameters through the remote monitoring terminal.

[0016] Further, the spray direction of the above nozzle assembly is consistent with the air flow direction of the workshop ventilation system, with a deviation angle ≤ 5°, to enhance the contact efficiency between the droplets and the dust through the air flow.

[0017] The present invention provides a micro - mist dust - suppression method for a micro - mist dust - suppression device, including the following steps: Real - time collect dust concentration, humidity, and Shore average value; When the dust concentration > 10 mg / m³ and the humidity < 60%RH, start the nozzle assembly, and match a 6 - 10 UH water flow at a pressure of 1 - 3 bar; When the Shore average value deviates from 5 - 10 μm, automatically adjust the pressure - to - water - flow ratio; The oscillation frequency of the atomization chamber is dynamically adjusted according to humidity: set to 100 Hz when the humidity > 70%RH, and set to 200 Hz when the humidity < 50%RH; Disassemble the silica gel gasket (3) to clean the nozzle (2) every quarter, and check the anti - corrosion and sealing status.

[0018] Further, the above method further includes a remote monitoring step: receive an alarm signal through the remote monitoring terminal, and remotely intervene in the spray volume or start an emergency shutdown procedure The beneficial effects of the present invention are: 1. High - efficiency dust removal: The four-way spray coverage area is 60 - 100 m², the fog droplet adsorption speed is increased by ≥ 40%, and the dust escape rate is reduced by 90%; 2. Precise humidity control: The dual-sensor feedback enables the humidity fluctuation range to be ≤ ±5% (≥ 15% in traditional technology), avoiding over-wetting or drying; 3. Long-life design: The corrosion resistance of the polypropylene housing is increased by 3 times, the lifespan of the 316 stainless steel nozzle reaches 8 - 10 years, and the maintenance frequency is reduced by 70%; 4. Active safety protection: The risk of dust explosion is reduced by 95%, and the alarm response time is < 3 seconds; 5. Low energy consumption and intelligent: The dynamic pressure matching optimizes the energy consumption, and the remote monitoring reduces the manual inspection cost. Description of the drawings

[0019] Figure 1 It is a side structure diagram of the nozzle assembly of the present invention.

[0020] Figure 2 It is a bottom sectional view of the nozzle assembly of the present invention.

[0021] Figure 3 It is a control logic flow chart of the present invention. Specific implementation manners

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0023] Such as Figures 1 to 3 It is a specific implementation manner of the present invention, specifically including the following core components: 1. Multi-directional nozzle assembly Structural design: Main housing 1 Material: Injection molded with polypropylene (PP) material, density 0.9 g / cm³, having the characteristics of light weight, acid and alkali corrosion resistance, and insulation; Airway interface 11: Rc1 / 4 threaded interface (diameter 10 mm), connecting to an external air compressor, with a pressure tolerance range of 1 - 3 bar; Waterway interface 12: Rc1 / 8 threaded interface (diameter 8 mm), connecting to an external water tank, with a flow tolerance range of 6 - 10 UH (unit: liters per minute); Sealing Design: A fluororubber seal ring (temperature resistance: -40°C to 120°C) is used at the interface to prevent gas or liquid leakage.

[0024] Nozzle 2 Material: 316 stainless steel (containing 2 - 3% molybdenum), resistant to chloride ion corrosion and high-temperature oxidation (long-term temperature tolerance ≤ 800°C); Internal Structure: Liquid Channel 21: Runs through the center of nozzle 2, with a diameter of 2 - 3 mm, surface polished to a roughness Ra ≤ 0.4 μm, and a water flow rate of 0.5 - 1.5 L / min; Gas Channel: The annular gap 22 surrounds the liquid channel 21, with a width of 0.5 - 1.0 mm, and a compressed gas flow rate of 20 - 30 m / s; Atomization Chamber 23: Located at the end of nozzle 2, with a chamber volume of 5 - 8 cm³, achieving two-stage atomization based on the siphon atomization principle: Primary Atomization (Gas Shearing) High-speed gas enters the atomization chamber 23 through the annular gap 22, surrounding the liquid column in the liquid channel 21; The difference in gas and liquid flow rates (gas 20 - 30 m / s vs. liquid 0.5 - 1.5 L / min) generates a shearing force that tears the liquid into coarse droplets (20 - 50 μm).

[0025] Secondary Atomization (Oscillation and Fragmentation) The coarse droplets are subjected to periodic pressure fluctuations and undergo the following processes: Tensile Fragmentation: The tensile effect of the pressure fluctuation deforms and fractures the droplets; Cavitation Effect: Microscopic bubbles form in the low-pressure area, and when the bubbles collapse, a local high pressure is generated, further pulverizing the droplets; Finally, ultrafine droplets of 5 - 10 μm are generated, with a standard deviation of particle size distribution ≤ 1.5 μm.

[0026] Detachable Silicone Retainer Ring 3 Material: Food-grade silicone (hardness Shore A 50 - 60), temperature resistance: -60°C to 250°C; Structural Design: Flow Guide Groove 31: 6 - 8 spiral grooves are provided on the inner side (groove depth 0.5 - 1.0 mm, groove width 0.5 - 1.0 mm) to guide the atomized air flow to rotate and spread; Connection Method: Snap-fastening (removal force ≤ 10 N), the outer diameter of the silicone retainer ring 3 and the outer wall of the nozzle 2 have a gap ≤ 0.2 mm to prevent dust intrusion.

[0027] Spray Direction and Coverage Four-way Spray: 4 symmetric spray holes 4 (hole diameter 1 - 1.5 mm) are provided at the outlet of nozzle 2, and it can spray forward, backward, left, and right directions; Coverage parameters: Single-sided spray distance: 3800 - 5800 mm (regulated by air pressure of 1 - 3 bar); Coverage radius: ≥ 1.5 m, droplet distribution density ≥ 200 drops / cm².

[0028] 2. Sensor network and intelligent control module Sensor layout: Humidity sensors and dust concentration sensors are distributed and installed on the top of the workshop and the side walls of grinding equipment to form a multi-point detection network; Control logic: Dynamic adjustment: The air pressure (1 - 3 bar) and water flow rate (6 - 10 UH) are matched in real time through a PID controller to ensure the stability of the droplet diameter; Hierarchical response: When the dust concentration > 10 mg / m³ and the humidity < 60% RH, the spray volume is increased to 100%; When the humidity ≥ 75% RH, the spray volume is reduced to less than 30%; If the dust concentration continuously > 15 mg / m³ and the humidity > 75% RH, the alarm module is triggered and the machine stops; Remote monitoring: The integrated terminal supports real-time data display, manual intervention, and emergency shutdown.

[0029] 3. Collaborative safety design Ventilation collaboration: The spray direction is consistent with the workshop air flow, and the deviation angle ≤ 5°, enhancing the contact efficiency between droplets and dust; Maintenance reminder: The alarm module generates a signal to prompt regular cleaning of the protective ring and inspection of the sealing performance.

[0030] Anti-corrosion design: The outer surface of the nozzle is sprayed with a tungsten carbide coating (thickness 50 - 100 μm), and the wear resistance is increased by 80% Example 1: Equipment assembly and parameter configuration Installation of the nozzle assembly Installation position: Fix the nozzle assembly 1.5 m directly above each grinding equipment in the workshop, ensuring that the central axis of nozzle 2 is perpendicular to the working surface of the grinding equipment; Connection method: Airway interface 11: Connect to the air compressor using Rc1 / 4 thread, the pipe diameter is 10 mm, and the initial air pressure is set to 2 bar; Waterway interface 12: Connect to the water tank using Rc1 / 8 thread, the pipe diameter is 8 mm, and the initial water flow rate is set to 8 UH; Spray direction calibration: Adjust the angle of spray hole 4 so that it sprays evenly in the front, back, left, and right four directions, with a coverage radius ≥ 1.5 m and a single-sided spray distance of 3800 - 5800 mm.

[0031] Sensor network layout Humidity sensor: Install one sensor every 5 meters at the top of the workshop, 3 meters above the ground; Dust concentration sensor: Install at the horizontally aligned position on the side wall of the grinding equipment, 1.2 meters above the ground; Data connection: All sensors are connected to the control module via the RS-485 bus, with a sampling frequency of 1 time per second.

[0032] Control module settings Threshold preset: Dust concentration threshold: 10mg / m³ (first-level alarm), 15mg / m³ (second-level alarm); Humidity threshold: 60%RH (lower limit), 75%RH (upper limit); PID parameter configuration: Proportional coefficient (Kp) = 0.8, integral time (Ti) = 120 seconds, derivative time (Td) = 30 seconds; The oscillation frequency of the atomization chamber is preset to 150Hz; Sauter mean calibration: Automatically monitor the droplet diameter after startup. If it deviates from the range of 5 - 10μm, trigger the pressure-flow ratio adjustment program.

[0033] Example 2: Dynamic adjustment and operation process Real-time data acquisition and response Data acquisition: The sensors transmit the dust concentration, humidity, and Sauter mean value to the control module in real time; Spray volume adjustment: Normal mode: When the dust concentration > 10mg / m³ and the humidity < 60%RH, the spray volume is increased to 100%, the air pressure is 2bar, and the water flow rate is 8UH; Dehumidification mode: When the humidity ≥ 75%RH, the spray volume is reduced to 30%, the air pressure is 1bar, and the water flow rate is 6UH; Emergency shutdown: If the dust concentration continuously > 15mg / m³ and the humidity > 75%RH for more than 30 seconds, trigger the alarm module and turn off the spray.

[0034] Remote monitoring operation Data display: View the dust concentration (unit: mg / m³), humidity (unit: %RH), and droplet diameter (unit: μm) in real time through the remote terminal; Manual intervention: Support remote adjustment of the spray volume (0 - 100%), air pressure (1 - 3bar), and water flow rate (6 - 10UH); Alarm handling: After the terminal receives the alarm signal, it can remotely start the emergency shutdown or send a maintenance instruction.

[0035] Optimization of atomization quality Closed-loop calibration: When the Sauter mean diameter of the droplets is monitored to be > 10 μm, the gas path pressure is automatically increased to 3 bar and the water flow rate is reduced to 6 UH; Oscillation frequency adjustment: The oscillation frequency of the atomization chamber 23 is dynamically adjusted according to the humidity. When the humidity > 70%RH, it is set to 100 Hz; when the humidity < 50%RH, it is set to 200 Hz.

[0036] Example 3: Regular maintenance and troubleshooting Maintenance of the silicone gasket 3 Disassembly process: Close the gas path and water path valves; Use a special tool to press the gasket buckle and remove the gasket with a disassembly force of ≤ 10 N; Cleaning steps: Use a soft brush to remove the dust accumulated outside the nozzle 2; Use compressed air to blow the residual particles in the diversion groove 31; Installation inspection: Ensure that the diversion groove 31 is aligned with the gas channel and the buckle is fully locked.

[0037] Sealing detection Gas path detection: Adjust the air pressure to 3 bar and spray soapy water to check whether the interface leaks; Water path detection: Adjust the water flow rate to 10 UH and observe whether there is water seepage at the pipe connection; Replacement standard: If continuous bubbles or water stains appear at the interface, the silicone rubber seal ring needs to be replaced.

[0038] Sensor calibration Humidity sensor: Calibrate monthly using a standard hygrometer (accuracy ±2%RH); Dust concentration sensor: Calibrate the zero point and range quarterly using a dust simulator (concentration 10 - 20 mg / m³).

[0039] Industrial application cases Application effect in a metal processing workshop: Dust removal efficiency: The dust concentration is reduced from 25 mg / m³ to below 4 mg / m³, and the escape rate is reduced by 92%; Humidity control: The humidity in the workshop is stable at 65 - 70%RH (fluctuation ±3%), and there is no over-wet or dry area; Maintenance cost: The annual maintenance cost is reduced by 55%, and the time-consuming for gasket cleaning is shortened from 2 hours / time to 0.5 hours / time; Safety: It has run continuously for 18 months without triggering a secondary alarm, and there is no record of equipment corrosion or failure.

[0040] Verification of technical effects Atomization efficiency test: Under the conditions of an air circuit pressure of 3 bar and a water flow rate of 10 UH, the average droplet diameter is 5.2 μm (standard deviation ±0.8 μm); The spray coverage area reaches 100 m², and the dust adsorption rate is ≥95%.

[0041] Corrosion resistance test: The nozzle 2 is placed in an acidic atomization environment with a pH of 3 and continuously operated for 500 hours, and the surface corrosion depth <0.01 mm; The polypropylene housing has no deformation or cracking in an environment with a humidity of 90% RH.

[0042] Response time test: From the sensor detecting an over-standard signal to the completion of the spray volume adjustment, the average response time is 1.2 seconds; The delay from the alarm trigger to the remote terminal receiving the signal <0.5 seconds.

[0043] Finally, several points should be noted: First, in the description of this application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, which can be a mechanical connection or an electrical connection, or the communication inside two components, and can be directly connected. The terms "upper", "lower", "left", "right", etc. are only used to represent the relative position relationship. When the absolute position of the described object changes, the relative position relationship may change; Second: In the attached drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are involved. For other structures, reference can be made to the general design. Without conflict, the same embodiment and different embodiments of the present invention can be combined with each other; Finally: The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A micro-mist dust suppression device, characterized in that, Comprising: A nozzle assembly, arranged above the workshop grinding equipment, and the nozzle assembly includes: A main housing (1), made of polypropylene material, provided with an air path interface (11) and a water path interface (12); The air path interface (11) is an Rc1 / 4 threaded interface with a diameter of 10 mm, used to connect to an external compressed air source; The water path interface (12) is an Rc1 / 8 threaded interface with a diameter of 8 mm, used to connect to an external liquid supply device; A nozzle (2), made of 316 stainless steel, threadedly connected to the main housing (1), and an atomization chamber (23) is provided at the end; A liquid channel (21) is provided at the center of the nozzle (2), running through the axial direction of the nozzle (2), and the diameter of the liquid channel (21) is 2 - 3 mm, used to transport liquid to the atomization chamber (23); An annular gap (22) is provided inside the nozzle (2), and the annular gap (22) surrounds the outer periphery of the liquid channel (21) with a width of 0.5 - 1.0 mm, used to transport compressed gas to the atomization chamber (23); The atomization chamber (23) realizes two - stage atomization based on the siphon vibration principle, generates 5 - 10 μm droplets, and the oscillation frequency is 100 - 200 Hz; A detachable silica gel retaining ring (3), covering the outside of the nozzle (2), and a diversion groove (31) is provided on the inner side of the silica gel retaining ring (3), used to guide the uniformly diffused atomized air flow ejected from the nozzle (2); A humidity sensor and a dust concentration sensor, respectively distributed and installed on the top of the workshop and the side wall of the grinding equipment; A control module, connected to the humidity sensor, the dust concentration sensor and the nozzle assembly, built - in with a PID controller and a Schott average value monitoring unit, dynamically adjusts the air path pressure and water flow according to the dust concentration, humidity and droplet diameter, wherein the adjustment range of the air path pressure is: 1 - 3 bar, and the adjustment range of the water flow is: 6 - 10 UH.

2. The micro mist dust suppression device according to claim 1, characterized in that, The gas flow rate in the atomization chamber (23) is 20 - 30 m / s, and the liquid flow rate is 0.5 - 1.5 L / min; The volume of the atomization chamber (23) is 5-8 cm 3 , and two-stage atomization is achieved based on the siphon atomization principle: Primary atomization: High - speed gas shears the liquid to form 20 - 50 μm coarse droplets; Secondary atomization: The oscillation frequency of the atomization chamber (23) is 100 - 200 Hz, so that the coarse droplets are further broken into 5 - 10 μm.

3. A micro mist dust suppression device according to claim 1, characterized in that, Four spray holes (4) are provided at the bottom of the nozzle (2), and the four spray holes (4) can spray in four directions of front, back, left and right respectively. The single - side spray distance is 3800 - 5800 mm, and the coverage radius ≥ 1.5 meters; The silica gel retaining ring (3) is connected to the nozzle (2) through a snap - fit structure, and the disassembly force ≤ 10 N, which is convenient for cleaning and maintenance.

4. The atomizing dust suppression device according to claim 1, wherein, The diversion groove (31) is 6 - 8 spiral grooves, evenly distributed on the inner side of the silica gel retaining ring (3), with a groove depth of 0.5 - 1.0 mm, and the groove width is the same as the width of the annular gap (22); The end of the diversion groove (31) is aligned with the spray hole (4), used to guide the atomized air flow to form rotational diffusion.

5. A micro-mist dust suppression device according to claim 1, characterized in that, The control module further includes an alarm module, configured as: When the dust concentration > 10 mg / m³ and the humidity < 60%RH, increase the spray volume to 100%; When the humidity ≥ 75%RH, reduce the spray volume to less than 30%; If the dust concentration continuously > 15 mg / m³ and the humidity > 75%RH, trigger the alarm module and stop spraying.

6. The micro mist dust suppression device according to claim 1, characterized in that, A fluororubber gasket is provided between the main housing (1) and the nozzle (2) to prevent electrochemical corrosion; The outer surface of the nozzle is sprayed with a tungsten carbide coating with a thickness of 50 - 100 μm.

7. The micro mist dust suppression device according to claim 5, characterized in that, The control module integrates a remote monitoring terminal, which supports real-time display of dust concentration, humidity, and spray volume data, and can manually adjust the spray parameters through the remote monitoring terminal.

8. A micro-mist dust suppression device according to claim 1, characterized in that The spray direction of the nozzle assembly is consistent with the air flow direction of the workshop ventilation system, with a deviation angle ≤ 5°, enhancing the contact efficiency between the droplets and the dust through the air flow.

9. A mist dust suppression method for a mist dust suppression device, implemented based on the device described in any one of claims 1-8, characterized in that, It includes the following steps: Real-time collect the dust concentration, humidity, and Shore average value; When the dust concentration > 10 mg / m³ and the humidity < 60%RH, start the nozzle assembly, and match the air pressure of 1 - 3 bar with the water flow of 6 - 10 UH; When the Shore average value deviates by 5 - 10 μm, automatically adjust the ratio of air pressure to water flow; The oscillation frequency of the atomization chamber is dynamically adjusted according to the humidity: set to 100 Hz when the humidity > 70%RH, and set to 200 Hz when the humidity < 50%RH; Disassemble the silicone gasket (3) to clean the nozzle (2) every quarter, and check the anti-corrosion and sealing status.

10. A micro-mist dust suppression method according to claim 9, characterized in that, It also includes a remote monitoring step: receive the alarm signal through the remote monitoring terminal, and remotely intervene in the spray volume or start the emergency shutdown procedure.

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