A plant for the treatment of dust from floor coating processes

Abstract

The application discloses a workshop dust treatment equipment for ground coating processing and belongs to the technical field of coating processing dust removal equipment. The equipment comprises a dust removal host, a movable dust suction assembly, a dust collection assembly, a purification and discharge assembly and an intelligent control assembly, and the components are detachably connected through sealed pipelines to form a dust treatment closed loop. The application is suitable for the characteristics of ground coating dust, such as large particle size span, easy moisture absorption and caking, containing organic solvent volatiles, flammability and explosiveness, high dust removal efficiency, sealing to prevent secondary dust raising, dust recycling and reuse, modularization for easy maintenance, explosion prevention and noise reduction, and high automation, and is suitable for dust treatment in the whole process of coating grinding, dispersion, mixing and filling.

Description

Technical Field

[0001] This invention relates to the technical field of equipment related to coating processing, specifically a dust treatment device for workshops used in the processing of floor coatings. Background Technology

[0002] The processing of floor coatings generates a large amount of dust in multiple stages, from resin grinding and pigment dispersion to raw material mixing and finished product filling. These dust particles have a wide range of sizes, from micron-sized pigment particles to millimeter-sized resin debris, and their composition is complex, including heavy metal compounds such as titanium dioxide and zinc oxide, as well as a small amount of volatile organic solvents. Some water-based coating dust is also prone to absorbing moisture and clumping, while solvent-based coating dust poses a risk of flammability and explosion, making it a typical type of complex pollutant dust.

[0003] Currently, the dust control equipment commonly used in floor coating processing workshops is mostly a single dust collection structure, such as cyclone dust collectors and simple bag dust collectors, which has many shortcomings: First, the dust collection method is singular, only able to initially intercept coarse dust particles, with low collection efficiency for micron-sized fine dust particles. The emission concentration often exceeds the limit of 30mg / m³ in the "Emission Standard of Air Pollutants for Coating, Ink and Adhesive Industry", failing to achieve comprehensive dust removal. Second, dust is prone to clumping and residue after collection, making it difficult to clean, and some equipment lacks a dust recovery and utilization structure, resulting in raw material waste. Third, the equipment has poor sealing performance, easily leading to air leakage and dust leakage, causing serious secondary dust pollution, which not only pollutes the workshop environment but also threatens the health of operators. Fourth, existing equipment is mostly an integral structure, inconvenient to disassemble and maintain, and cannot flexibly adjust the dust collection range according to the distribution of dust generation points in the workshop, resulting in poor adaptability. Fifth, some equipment does not consider the explosion-proof and anti-caking requirements of coating dust, posing safety hazards and easily causing equipment blockage, affecting the service life and dust collection efficiency of the equipment.

[0004] In view of the shortcomings of the existing technology, there is an urgent need to design a dust treatment equipment with reasonable structure, high dust removal efficiency, good sealing performance, convenient maintenance, and adaptability to the dust characteristics of the floor coating processing workshop, which takes into account both dust recovery and safety protection, so as to solve the defects of the existing technology. Summary of the Invention

[0005] The purpose of this invention is to provide a dust treatment device for workshops used in the processing of floor coatings, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A dust treatment device for workshops used in floor coating processing includes a dust removal host, a movable dust collection component, a dust collection component, a purification and emission component, and an intelligent control component. The components are detachably connected through sealed pipes to form a complete dust treatment closed loop.

[0008] The dust removal host has a modular box structure, which is divided into a pretreatment chamber, a fine treatment chamber and an installation chamber from top to bottom. The pretreatment chamber is connected to the movable dust collection component through a sealed pipe. The fine treatment chamber is located below the pretreatment chamber and is separated from the pretreatment chamber by a guide plate. The installation chamber is located below the fine treatment chamber and contains a drive component and a control module.

[0009] The movable vacuum assembly includes a movable base, a telescopic vacuum arm, and a vacuum hood. The movable base is equipped with universal wheels with locking function at the bottom. One end of the telescopic vacuum arm is fixedly connected to the movable base, and the other end is detachably connected to the vacuum hood. The inner wall of the vacuum hood is equipped with a flexible sealing gasket, and the vacuum hood is equipped with an airflow regulating valve. The telescopic vacuum arm has an internal pipe, one end of which is connected to the vacuum hood, and the other end is connected to the pretreatment chamber of the dust removal host through a quick connector.

[0010] The pretreatment chamber is equipped with a crushing and dispersing mechanism and a coarse filter assembly. The crushing and dispersing mechanism includes a drive motor, a rotating shaft, and crushing blades. The drive motor is fixedly installed on the top of the dust collector and its output end is connected to the rotating shaft. The rotating shaft extends into the pretreatment chamber. The crushing blades are evenly distributed on the rotating shaft to crush and disperse the agglomerated paint dust, and simultaneously use extrusion pressure to initially remove impurities from the dust. The coarse filter assembly includes a coarse filter screen and a vibrator. The coarse filter screen is inclined and fixed inside the pretreatment chamber, located below the crushing blades. The vibrator is fixed at the bottom of the coarse filter screen to drive the coarse filter screen to vibrate, preventing dust from clogging the coarse filter screen. A dust guide plate is provided below the coarse filter screen, and the dust guide plate is inclined and extends to the dust collection assembly.

[0011] The fine treatment chamber is equipped with a multi-stage filtration mechanism, which includes a medium-efficiency filter cartridge, a high-efficiency filter cartridge, and an activated carbon filter layer arranged sequentially. The medium-efficiency filter cartridge is made of polyester fiber and is used to intercept dust particles with a diameter of 1-10μm. The high-efficiency filter cartridge is made of polyester fiber substrate covered with a PTFE microporous membrane with a surface pore size of 0.03μm, which is both waterproof and heat-resistant, and is used to intercept fine dust particles with a diameter of 0.1-1μm, with a dust removal efficiency of over 99.6%. The activated carbon filter layer is used to adsorb volatile organic solvents in the dust, realizing the simultaneous treatment of dust and gaseous pollutants. The side wall of the fine treatment chamber is equipped with an inspection door, and a sealing ring is provided between the inspection door and the fine treatment chamber to facilitate the disassembly and replacement of the filter cartridge and the activated carbon filter layer.

[0012] The dust collection assembly includes a dust collection box, a screw conveyor, and a recovery bin. The dust collection box is connected to the pretreatment chamber via a dust guide plate, and its top is connected to the bottom of the fine treatment chamber. It is used to collect dust after coarse and fine filtration. The screw conveyor is fixed to the bottom of the dust collection box, and its output end is connected to the recovery bin. The recovery bin is detachably connected to the bottom of the dust collection box and is equipped with a sealing cover. A filter screen is vertically installed inside the dust collection box, dividing it into a dust collection chamber and an air outlet chamber. The dust collection chamber is connected to the dust guide plate and the fine treatment chamber, and the air outlet chamber is connected to the purification and emission assembly. The dust collection chamber is also equipped with a spray assembly, including a water tank, a water pump, and a nozzle. The water pump is located on the water tank, with its inlet connected to the water tank and its outlet connected to the nozzle. The nozzle is located inside the dust collection chamber and is used to spray and suppress dust in the dust collection chamber, preventing dust from flying and avoiding dust agglomeration.

[0013] The purification and emission assembly includes an induced draft fan, a silencer, and an emission pipe. The induced draft fan is fixedly installed in the installation cavity, with its input end connected to the fine treatment cavity and its output end connected to the silencer. The end of the silencer furthest from the induced draft fan is connected to the emission pipe, which extends to the outside of the workshop and is equipped with a rain cap at its end. The induced draft fan is a variable frequency fan, which can adjust the air volume according to the dust concentration in the workshop to reduce energy consumption.

[0014] The intelligent control component includes a control module, a dust concentration sensor, and a differential pressure sensor. The dust concentration sensor is fixed near the dust generation point and at the end of the emission pipe in the workshop to detect the dust concentration in the workshop and the emission dust concentration. The differential pressure sensor is located in the fine treatment chamber to detect the pressure difference before and after the multi-stage filtration mechanism and to determine the filter cartridge blockage. The control module is electrically connected to the drive motor, vibrator, induced draft fan, dust concentration sensor, differential pressure sensor, and water pump to realize the automated control of the equipment.

[0015] The outer shells of the dust removal host, the movable dust collection component, and the dust collection component are all made of anti-static carbon steel and are grounded to prevent static electricity buildup of paint dust and avoid the risk of explosion. The sealed pipes are made of corrosion-resistant rubber and have sealing joints at the pipe connections to ensure the overall sealing performance of the equipment, with a leakage rate of less than 1%, thus preventing secondary dust generation. The fine treatment chamber adopts a compartmentalized offline dust removal structure, and the control module controls the solenoid valves to achieve chamber-by-chamber dust removal, avoiding secondary dust generation during the dust removal process.

[0016] The movable dust collection components are provided in at least two sets, which can be flexibly arranged according to the dust generation points (such as grinders, mixers, and filling stations) in the floor coating processing workshop to achieve simultaneous dust removal at multiple points; the telescopic dust collection arm can rotate 360° and extend and retract vertically to adapt to dust generation points of different heights and positions, and the dust collection hood can be replaced with different specifications according to the size of the dust generation point to improve the dust collection effect.

[0017] Preferably, the coarse filter screen is made of stainless steel with a pore size of 10-20μm and an inclination angle of 30-45°, which facilitates the dust to slide onto the dust guide plate under the action of gravity and vibration, reducing dust accumulation; the vibrator is a small eccentric vibrator, and the vibration frequency can be adjusted by the control module to avoid excessive vibration from damaging the equipment.

[0018] Preferably, both the medium-efficiency filter cartridge and the high-efficiency filter cartridge are installed at an angle of 15-30°, which saves internal space and facilitates dust to slide into the dust collection box. The filter cartridge is sealed with a rubber gasket between itself and the inner wall of the fine treatment chamber to ensure filtration effect. The activated carbon filter layer has a detachable structure, which is convenient for regular replacement and improves adsorption effect.

[0019] Preferably, the screw conveyor includes a conveying motor, a conveying cylinder, and screw blades. The conveying motor is fixed at one end of the conveying cylinder, and its output end is connected to the screw blades. The screw blades extend into the inside of the conveying cylinder. The bottom of the conveying cylinder is provided with a discharge port that communicates with the recycling bin. The screw conveyor can evenly transport the dust in the dust collection box to the recycling bin, avoiding dust agglomeration and blockage of the discharge port.

[0020] Preferably, the control module adopts a PLC controller, which can preset dust concentration threshold and differential pressure threshold. When the dust concentration in the workshop exceeds the preset threshold, the control module automatically starts the induced draft fan and adjusts the air volume, and at the same time starts the movable dust collection component and the crushing and dispersing mechanism. When the differential pressure detected by the differential pressure sensor exceeds the preset threshold, the control module issues an alarm signal to remind the staff to replace the filter cartridge. The control module also has a manual control mode to facilitate manual operation of the equipment by the staff.

[0021] Preferably, the bottom of the dust removal host is equipped with a shock-absorbing pad to reduce the vibration and noise generated during equipment operation. The silencer adopts an impedance composite silencer, which can effectively reduce the noise generated during the operation of the induced draft fan, reducing the equipment operating noise to below 75dB, which meets the environmental protection requirements of the workshop.

[0022] Preferably, the bottom of the dust collection box has a conical structure with a slope angle >60°, and a built-in dust baffle to buffer the airflow, reduce filter cartridge wear, and facilitate dust collection to the screw conveyor to avoid dust residue. The water storage tank is equipped with a water level sensor. When the water level is lower than the preset value, the control module issues an alarm signal to remind the staff to add water.

[0023] Preferably, the telescopic vacuum arm adopts a multi-section sleeve structure, with adjacent sleeves fixed by locking bolts. The length can be adjusted according to actual needs, with a telescopic range of 1-3m. The opening of the vacuum hood is equipped with a dustproof baffle to prevent dust from leaking from the edge of the vacuum hood and improve vacuuming efficiency.

[0024] Compared with the prior art, the beneficial effects of the present invention are:

[0025] 1. This dust removal equipment for workshops used in floor coating processing provides thorough dust removal and is well-suited to the characteristics of dust generated during floor coating processing. The invention includes a pretreatment chamber and a fine treatment chamber. The pretreatment chamber's crushing and dispersing mechanism breaks down and disperses agglomerated coating dust, which, combined with a coarse filter assembly, intercepts coarse dust particles. The fine treatment chamber's multi-stage filtration mechanism (medium-efficiency filter cartridge + high-efficiency filter cartridge + activated carbon filter layer) intercepts fine dust particles and adsorbs gaseous pollutants, achieving a dust removal efficiency of over 99.6%. Emission concentrations meet environmental standards. Simultaneously, the spray assembly prevents dust from flying and agglomerating, solving the problems of incomplete dust removal and easy dust agglomeration in existing equipment. It is well-suited to the characteristics of floor coating dust, which has a wide particle size range, complex composition, and is sensitive to humidity.

[0026] 2. This dust control equipment for floor coating processing workshops has excellent sealing performance, eliminating secondary dust generation: the various components of the equipment are connected by sealed pipes and joints, the inner wall of the dust collection hood is equipped with a flexible sealing gasket, and a sealing ring is installed between the inspection door and the fine treatment chamber. The overall air leakage rate is less than 1%, which can effectively prevent dust leakage. At the same time, the fine treatment chamber adopts a compartmented offline dust removal structure, avoiding secondary dust generation during the dust removal process, completely solving the serious secondary dust generation defect of existing equipment, and ensuring a clean workshop environment.

[0027] 3. This dust control equipment for workshops used in floor coating processing is highly adaptable and flexible in operation: it has at least two sets of movable dust collection components, which can be flexibly arranged according to the dust generation points in the workshop; the telescopic dust collection arm can rotate 360° and extend and retract vertically, adapting to dust generation points of different heights and positions; the dust collection hood can be replaced with different specifications to adapt to dust generation points of different sizes; the exhaust fan adopts a variable frequency design, which can adjust the air volume according to the dust concentration to adapt to different dust generation conditions.

[0028] 4. This workshop dust treatment equipment for floor coating processing is easy to maintain and recover dust: The equipment adopts a modular structure, with movable dust collection components and sealed pipes that can be detachably connected. The fine treatment chamber is equipped with an inspection door, and the filter cartridge and activated carbon filter layer are both detachable structures, making it easy to disassemble, replace, and maintain. The dust collection component transports the dust to the recovery bin through a screw conveyor. The recovered dust can be reused in floor coating processing, realizing resource recycling, reducing production costs, and solving the problems of inconvenient maintenance and dust waste of existing equipment.

[0029] 5. This workshop dust treatment equipment for floor coating processing has high safety performance and stable operation: the equipment shell is made of anti-static carbon steel and grounded, which can prevent the static accumulation of coating dust and avoid the risk of explosion, and is suitable for the explosion-proof requirements of solvent-based coating dust; the bottom of the dust collector is equipped with shock-absorbing pads, the silencer can reduce the operating noise of the equipment, the vibrator can prevent the coarse filter from clogging, and the spraying components can prevent dust from agglomerating, ensuring long-term stable operation of the equipment.

[0030] 6. This workshop dust control equipment for floor coating processing is highly automated and saves manpower: The intelligent control component uses dust concentration sensors and differential pressure sensors to detect the equipment's operating status in real time. The control module automatically adjusts the equipment's operating parameters to achieve automated start-up, operation, and alarm functions. No staff are required to be on duty in real time, saving labor costs. At the same time, it can detect equipment abnormalities in a timely manner to avoid equipment damage. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of the present invention;

[0032] Figure 2 This is a cross-sectional view of the internal structure of the dust removal host of the present invention;

[0033] Figure 3 This is a schematic diagram of the dust collection component structure of the present invention;

[0034] Figure 4 This is a schematic diagram of the movable vacuum cleaner component of the present invention.

[0035] In the diagram: 1. Dust collector main unit; 2. Movable dust collection assembly; 3. Dust collection assembly; 4. Purification and emission assembly; 5. Intelligent control assembly; 6. Sealed pipe; 7. Pre-treatment chamber; 8. Fine treatment chamber; 9. Installation chamber; 10. Guide plate; 11. Movable base; 12. Telescopic dust collection arm; 13. Dust hood; 14. Casters; 15. Airflow regulating valve; 16. Quick connector; 17. Crushing and dispersing mechanism; 18. Coarse filter assembly; 19. Drive motor; 20. Rotating shaft; 21. Crushing blades; 22. Coarse filter screen; 23. Vibrator; 24. Dust guide plate; 25. Multi-stage filtration mechanism; 26. Medium-efficiency filter. 27. High-efficiency filter cartridge; 28. Activated carbon filter layer; 29. ​​Inspection door; 30. Dust collection box; 31. Screw conveyor; 32. Recovery bin; 33. Sealing cover; 34. Filter screen; 35. Dust collection chamber; 36. Air outlet chamber; 37. Spray assembly; 38. Water storage tank; 39. Water pump; 40. Spray nozzle; 41. Exhaust fan; 42. Silencer; 43. Discharge pipe; 44. Rain cap; 45. Control module; 46. Dust concentration sensor; 47. Differential pressure sensor; 48. Conveying motor; 49. Conveying cylinder; 50. Screw blades; 51. Water level sensor; 52. Shock absorber; 53. Dust baffle. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] This invention provides a technical solution for dust treatment equipment in a workshop for floor coating processing:

[0038] Example:

[0039] A dust treatment device for workshops used in floor coating processing includes a dust removal host 1, a movable dust collection component 2, a dust collection component 3, a purification and emission component 4, and an intelligent control component 5. The components are detachably connected through sealed pipes 6 to form a complete dust treatment closed loop.

[0040] The dust removal host 1 has a modular box structure, which is divided into a pretreatment chamber 7, a fine treatment chamber 8 and an installation chamber 9 from top to bottom. The pretreatment chamber 7 is connected to the movable dust collection component 2 through a sealed pipe 6. The fine treatment chamber 8 is located below the pretreatment chamber 7 and is separated from the pretreatment chamber 7 by a guide plate 10. The installation chamber 9 is located below the fine treatment chamber 8 and contains a drive component and a control module 45.

[0041] The movable vacuum assembly 2 includes a movable base 11, a telescopic vacuum arm 12, and a vacuum hood 13. The movable base 11 is equipped with universal wheels 14 with locking function at the bottom. One end of the telescopic vacuum arm 12 is fixedly connected to the movable base 11, and the other end is detachably connected to the vacuum hood 13. The inner wall of the vacuum hood 13 is equipped with a flexible sealing gasket, and the vacuum hood 13 is equipped with an air volume regulating valve 15. The telescopic vacuum arm 12 is equipped with an internal pipe. One end of the internal pipe is connected to the vacuum hood 13, and the other end is connected to the pretreatment chamber 7 of the dust removal host 1 through a quick connector 16. The telescopic vacuum arm 12 adopts a multi-section sleeve structure, and the adjacent sleeves are fixed by locking bolts. The telescopic range is 1-3m. The opening of the vacuum hood 13 is equipped with a dustproof baffle 53.

[0042] The pretreatment chamber 7 is equipped with a crushing and dispersing mechanism 17 and a coarse filter assembly 18. The crushing and dispersing mechanism 17 includes a drive motor 19, a rotating shaft 20, and crushing blades 21. The drive motor 19 is fixedly installed on the top of the dust collector 1, and its output end is connected to the rotating shaft 20. The rotating shaft 20 extends into the pretreatment chamber 7. The crushing blades 21 are evenly distributed on the rotating shaft 20. The coarse filter assembly 18 includes a coarse filter screen 22 and a vibrator 23. The coarse filter screen 22 is made of stainless steel with a pore size of 15μm. It is tilted and fixed inside the pretreatment chamber 7, located below the crushing blades 21, with an inclination angle of 35°. The vibrator 23 is fixed at the bottom of the coarse filter screen 22 and is a small eccentric vibrator. The vibration frequency can be adjusted by the control module 45. A dust guide plate 24 is provided below the coarse filter screen 22. The dust guide plate 24 is tilted and extends to the dust collection assembly 3.

[0043] The fine treatment chamber 8 is equipped with a multi-stage filtration mechanism 25, which includes a medium-efficiency filter cartridge 26, a high-efficiency filter cartridge 27, and an activated carbon filter layer 28 arranged sequentially. The medium-efficiency filter cartridge 26 is made of polyester fiber, and the high-efficiency filter cartridge 27 is made of polyester fiber substrate covered with a PTFE microporous membrane with a surface pore size of 0.03μm. Both the medium-efficiency filter cartridge 26 and the high-efficiency filter cartridge 27 are installed at an inclined angle of 20° and are sealed with rubber gaskets between themselves and the inner wall of the fine treatment chamber 8. The activated carbon filter layer 28 has a detachable structure. The side wall of the fine treatment chamber 8 is equipped with an inspection door 29, and a sealing ring is provided between the inspection door 29 and the fine treatment chamber 8. The fine treatment chamber 8 adopts a compartmentalized offline cleaning structure, and the solenoid valve is controlled by the control module 45 to achieve compartmentalized cleaning.

[0044] The dust collection assembly 3 includes a dust collection box 30, a screw conveyor 31, and a recovery bin 32. The dust collection box 30 is connected to the pretreatment chamber 7 via a dust guide plate 24, and the top of the dust collection box 30 is connected to the bottom of the fine treatment chamber 8. The bottom of the dust collection box 30 has a conical structure with a bevel angle >60° and an internal dust baffle. The screw conveyor 31 is fixed to the bottom of the dust collection box 30 and includes a conveying motor 48, a conveying cylinder 49, and screw blades 50. The conveying motor 48 is fixed to one end of the conveying cylinder 49, and its output end is connected to the screw blades 50. The screw blades 50 extend into the interior of the conveying cylinder 49. The bottom of the conveying cylinder 49 has an outlet that communicates with the recovery bin 32. The collection bin 32 is detachably connected to the bottom of the dust collection box 30, and the collection bin 32 is equipped with a sealing cover 33. The dust collection box 30 is vertically equipped with a filter screen 34, which divides the dust collection box 30 into a dust collection chamber 35 and an air outlet chamber 36. The dust collection chamber 35 is connected to the dust guide plate 24 and the fine treatment chamber 8, and the air outlet chamber 36 is connected to the purification and emission component 4. The dust collection chamber 35 is also equipped with a spray component 37, including a water storage tank 38, a water pump 39 and a spray head 40. The water pump 39 is located on the water storage tank 38, with the water inlet connected to the water storage tank 38 and the water outlet connected to the spray head 40. The spray head 40 is located in the dust collection chamber 35, and the water storage tank 38 is equipped with a water level sensor 51.

[0045] The purification and emission assembly 4 includes an exhaust fan 41, a silencer 42, and an emission pipe 43. The exhaust fan 41 is fixedly installed in the installation cavity 9 and is a variable frequency fan. Its input end is connected to the fine treatment cavity 8, and its output end is connected to the silencer 42. The silencer 42 is an impedance composite silencer. The end away from the exhaust fan 41 is connected to the emission pipe 43. The emission pipe 43 extends to the outside of the workshop, and the end of the emission pipe 43 is equipped with a rain cap 44.

[0046] The intelligent control component 5 includes a control module 45, a dust concentration sensor 46, and a differential pressure sensor 47. The control module 45 adopts a PLC controller. The dust concentration sensor 46 is fixed near the dust generation point in the workshop and at the end of the discharge pipe 43. The differential pressure sensor 47 is located in the fine treatment chamber 8. The control module 45 is electrically connected to the drive motor 19, the vibrator 23, the induced draft fan 41, the dust concentration sensor 46, the differential pressure sensor 47, the water pump 39, the material conveying motor 48, and the water level sensor 51.

[0047] The outer shells of the dust removal host 1, the movable dust collection component 2, and the dust collection component 3 are all made of anti-static carbon steel and are grounded. The sealed pipe 6 is made of corrosion-resistant rubber and has a sealing joint at the pipe connection. The bottom of the dust removal host 1 is equipped with a shock-absorbing pad 52.

[0048] In this embodiment, during use, based on the layout of dust-generating points such as grinders, mixers, and filling stations in the floor coating processing workshop, two sets of movable dust collection components 2 are moved, and the length and angle of the telescopic dust collection arm 12 are adjusted so that the dust collection hood 13 is aligned with each dust-generating point. The casters 14 are locked to fix the movable base 11, and the equipment is started through the control module 45. The exhaust fan 41 runs to generate negative pressure, and the coating dust in the workshop is sucked into the built-in pipe of the telescopic dust collection arm 12 through the dust collection hood 13, and then through the quick connector 16 and the sealing tube. The dust enters the pretreatment chamber 7 of the dust collector 1 through channel 6. The drive motor 19 drives the rotating shaft 20 and the crushing blades 21 to rotate, breaking and dispersing the sucked-in agglomerated dust. At the same time, the impurities in the dust are initially removed by the extrusion pressure. The broken and dispersed dust falls to the coarse filter 22 under the action of gravity. The coarse filter 22 intercepts coarse dust particles with a diameter greater than 15μm. The vibrator 23 drives the coarse filter 22 to vibrate, avoiding dust clogging the coarse filter 22. The coarse dust particles slide down the dust guide plate 24 to the dust collection chamber 35 of the dust collection box 30.

[0049] After coarse filtration, the airflow containing fine dust particles enters the fine treatment chamber 8 through the guide plate 10, and passes sequentially through the medium-efficiency filter cartridge 26, the high-efficiency filter cartridge 27, and the activated carbon filter layer 28. The medium-efficiency filter cartridge 26 intercepts dust particles with a diameter of 1-10μm, the high-efficiency filter cartridge 27 intercepts fine dust particles with a diameter of 0.1-1μm, and the activated carbon filter layer 28 adsorbs volatile organic solvents in the dust, achieving simultaneous purification of dust and gaseous pollutants. The purified airflow enters the induced draft fan 41, and after noise reduction by the silencer 42, it is discharged to the outside of the workshop through the discharge pipe 43, with the emission concentration controlled below 30mg / m³.

[0050] Dust intercepted during the fine treatment process falls into the dust collection chamber 35 of the dust collection box 30 under gravity, where it merges with the dust after coarse filtration. The water pump 39 of the spray assembly 37 delivers water from the water storage tank 38 to the spray nozzle 40 to spray and reduce dust in the dust collection chamber 35, preventing dust from flying and agglomerating. The water level sensor 51 detects the water level in the water storage tank 38 in real time. When the water level is lower than the preset value, the control module 45 issues an alarm signal.

[0051] The conveying motor 48 drives the spiral blades 50 to rotate, evenly conveying the dust in the dust collection box 30 to the recycling bin 32. The recycled dust can be reused for floor coating processing. The dust concentration sensor 46 detects the dust concentration in the workshop and the discharge pipe 43 in real time. When the dust concentration in the workshop exceeds the preset threshold, the control module 45 automatically adjusts the air volume of the induced draft fan 41 to improve the dust removal efficiency. The differential pressure sensor 47 detects the pressure difference before and after the multi-stage filtration mechanism 25. When the pressure difference exceeds the preset threshold, the control module 45 issues an alarm signal to remind the staff to replace the filter.

[0052] During equipment maintenance, the medium-efficiency filter cartridge 26, high-efficiency filter cartridge 27, and activated carbon filter layer 28 can be disassembled and replaced through the inspection door 29. The recovery bin 32 can be disassembled to clean up the recovered dust. The movable dust collection component 2 can be separated from the sealed pipe 6 through the quick connector 16 for easy movement and maintenance. During equipment operation, the anti-static shell and grounding design can effectively prevent static electricity accumulation and avoid the risk of explosion. The sealed structure can prevent dust leakage and secondary dust generation. The shock-absorbing pad 52 and silencer 42 can reduce the vibration and noise of the equipment during operation.

[0053] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dust treatment device for workshops used in floor coating processing, characterized in that, It includes a dust removal host (1), a movable dust collection component (2), a dust collection component (3), a purification and emission component (4), and an intelligent control component (5). The components are detachably connected through a sealed pipe (6) to form a closed loop for dust treatment. The dust removal host (1) is a modular box structure, which is divided into a pretreatment chamber (7), a fine treatment chamber (8) and an installation chamber (9) from top to bottom. The pretreatment chamber (7) is connected to the movable dust collection component (2). The fine treatment chamber (8) is located below the pretreatment chamber (7) and the two are separated by a guide plate (10). The installation chamber (9) is located below the fine treatment chamber (8).

2. The dust treatment equipment for workshop floor coating processing according to claim 1, characterized in that: The movable vacuum assembly (2) includes a movable base (11), a telescopic vacuum arm (12), and a vacuum hood (13). The movable base (11) is equipped with a universal wheel (14) with locking function at the bottom. One end of the telescopic vacuum arm (12) is fixed to the movable base (11), and the other end is detachably connected to the vacuum hood (13). The inner wall of the vacuum hood (13) is equipped with a flexible sealing gasket and an air volume regulating valve. The telescopic vacuum arm (12) is connected to the pretreatment chamber (7) through a quick connector.

3. The dust treatment equipment for workshop floor coating processing according to claim 1, characterized in that: The pretreatment chamber (7) is provided with a crushing and dispersing mechanism (17) and a coarse filter assembly (18). The crushing and dispersing mechanism (17) includes a drive motor (19), a rotating shaft (20) and crushing blades (21). The drive motor (19) is fixed to the top of the dust collector (1) and its output end is connected to the rotating shaft (20). The crushing blades (21) are evenly distributed on the rotating shaft (20). The coarse filter assembly (18) includes an inclined coarse filter screen (22) and a vibrator (23). The vibrator (23) is fixed to the bottom of the coarse filter screen (22). A dust guide plate (24) extending to the dust collection assembly (3) is provided below the coarse filter screen (22).

4. A dust treatment device for workshop floor coating processing according to claim 1, characterized in that: The fine treatment chamber (8) is equipped with a multi-stage filtration mechanism (25), which consists of a medium-efficiency filter cartridge (26), a high-efficiency filter cartridge (27), and an activated carbon filter layer (28) arranged in sequence. The medium-efficiency filter cartridge (26) is made of polyester fiber, the high-efficiency filter cartridge (27) is made of polyester fiber substrate covered with PTFE microporous membrane, and the activated carbon filter layer (28) is a detachable structure. The side wall of the fine treatment chamber (8) is equipped with an inspection door (29) with a sealing rubber ring, and adopts a compartmentalized offline dust removal structure.

5. A dust treatment device for workshop floor coating processing according to claim 1, characterized in that: The dust collection assembly (3) includes a dust collection box (30), a screw conveyor (31), and a recycling bin (32). The dust collection box (30) is connected to the pretreatment chamber (7) and the fine treatment chamber (8) respectively. A filter screen (34) is vertically installed inside and divided into a dust collection chamber (35) and an air outlet chamber (36). A spray assembly (37) is installed in the dust collection chamber (35). The screw conveyor (31) is fixed to the bottom of the dust collection box (30) and its output end is connected to the detachable recycling bin (32).

6. A dust treatment device for workshop floor coating processing according to claim 5, characterized in that: The spray assembly (37) includes a water tank (38), a water pump (39) and a nozzle (40). The water pump (39) connects the water tank (38) and the nozzle (40). The nozzle (40) is located in the dust collection chamber (35). The water tank (38) is equipped with a water level sensor (51). The bottom of the dust collection chamber (30) has a conical structure with a slope greater than 60°.

7. A dust treatment device for workshop floor coating processing according to claim 1, characterized in that: The purification and emission assembly (4) includes a variable frequency induced draft fan (41), a silencer (42) and an emission pipe (43). The induced draft fan (41) is installed in the installation cavity (9), with its input end connected to the fine treatment cavity (8) and its output end connected to the silencer (42). The other end of the silencer (42) is connected to the emission pipe (43) extending outside the workshop. The end of the emission pipe (43) is provided with a rain cap (44).

8. A dust treatment device for workshop floor coating processing according to claim 1, characterized in that: The intelligent control component (5) includes a PLC control module (45), a dust concentration sensor (46), and a differential pressure sensor (47). The dust concentration sensor (46) is located at the dust generation point and the end of the discharge pipe (43) in the workshop. The differential pressure sensor (47) is located in the fine treatment chamber (8). The control module (45) is electrically connected to the drive motor (19), the vibrator (23), the induced draft fan (41), and the water pump (39).

9. A dust treatment device for workshop floor coating processing according to claim 1, characterized in that: The outer shells of the dust removal host (1), the movable dust collection component (2), and the dust collection component (3) are all made of antistatic carbon steel and grounded. The sealed pipe (6) is made of corrosion-resistant rubber and has a sealing joint at the connection.

10. A dust treatment device for workshop floor coating processing according to claim 2, characterized in that: The movable vacuum assembly (2) is provided with at least 2 sets. The telescopic vacuum arm (12) is a multi-section sleeve structure that can rotate 360°, extend and retract vertically, and has an extension range of 1-3m. The vacuum hood (13) has a dustproof baffle (53) at the opening, which can be replaced according to the specifications of the dust generation point.

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