A pump-free, energy-saving, dust suppression and explosion-proof wet vortex dust collector

Abstract

This utility model discloses a pumpless, energy-saving, dust-suppressing and explosion-proof wet vortex dust collector, including a dust collector housing. A centrifugal fan is fixedly installed in the upper part of the inner cavity of the dust collector housing. A purified air outlet is opened at the top of the dust collector housing, corresponding to the position directly above the centrifugal fan. An explosion-proof motor for driving the centrifugal fan is sealed and installed at the purified air outlet. This pumpless, energy-saving, dust-suppressing and explosion-proof wet vortex dust collector has stable dust removal efficiency and a wide range of applications. The combination structure of the main and auxiliary water vortex generator can form a stable high-speed vortex water flow, ensuring full contact between the dust-laden airflow and the water, avoiding dust removal dead zones caused by local airflow short circuits, and achieving deep water-air separation. The water-air isolation filter box and the water-dust isolation baffle work together to effectively remove water mist entrained in the airflow, avoid water carryover in the exhaust, and ensure that the humidity of the purified air meets the emission requirements. It can adapt to various high-risk dust and explosion-prone working conditions such as grinding, polishing, deburring, and shot blasting of various metals.

Description

Technical Field

[0001] This utility model relates to the field of air dust removal technology, specifically a pump-free, energy-saving, dust suppression and explosion-proof wet vortex dust collector. Background Technology

[0002] In industrial production (such as the grinding, polishing, deburring, and shot blasting of aluminum, magnesium, titanium, zinc, copper, iron, and stainless steel, which generate flammable and explosive dust), a large amount of dust-laden airflow is produced. Direct emission of this dust not only causes air pollution and harms the health of operators, but may also lead to explosions due to dust accumulation. Therefore, dust control has become one of the core requirements for industrial safety and environmental protection. Currently, the mainstream dust removal technologies on the market are mainly divided into two categories: dry dust removal and wet dust removal. However, many technical bottlenecks still exist in practical applications, such as excessive emissions from stationary pollution sources, making it difficult to simultaneously meet the comprehensive requirements of "high-efficiency dust removal, explosion-proof safety, energy saving and low consumption, and convenient maintenance." Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the defects of existing stationary pollution sources that exceed emission standards, and to provide a pump-free, energy-saving, dust suppression and explosion-proof wet vortex dust collector. It is easy to achieve the comprehensive goals of efficient dust removal, safety and explosion prevention, energy saving and low consumption, and convenient maintenance through structural innovation, so as to meet the needs of industrial dust control and effectively solve the problems in the background technology.

[0004] To achieve the above objectives, this utility model provides the following technical solution: A pump-free, energy-saving, dust suppression and explosion-proof wet vortex dust collector includes a dust collection chamber. A centrifugal fan is fixedly installed in the upper part of the inner cavity of the dust collection chamber. A purified air outlet is opened at the top of the dust collection chamber, directly above the centrifugal fan, and an explosion-proof motor for driving the centrifugal fan is sealed and installed at the purified air outlet. A dust inlet is provided at the lower part of the left side of the dust collection chamber, and an explosion-proof box for the main inlet line is provided at the upper part of the right side of the dust collection chamber. Between the front and rear side walls of the inner cavity of the dust collection chamber, along the direction of dust airflow, a dust inlet baffle, a water vortex guide plate, a water vortex generator main plate, and a water-dust isolation baffle are sequentially installed. A baffle is vertically fixed inside the dust inlet, and the bottom of the dust inlet baffle is connected to the upper water mist separation tooth assembly. The water vortex guide plate is horizontally set below the upper water mist separation tooth assembly, and a detachable cleaning plate is detachably installed on its top surface. The lower water mist separation tooth assembly, which corresponds to the upper water mist separation tooth assembly, is fixedly installed on the top surface of the detachable cleaning plate. The main water vortex generator is inclinedly set on the right side of the dust inlet baffle, and a secondary water vortex generator plate is connected to the bottom of the main water vortex generator. The water dust isolation baffle is located diagonally above the main water vortex generator. A circulating sedimentation tank is provided at the lower edge of the right side of the dust collector.

[0005] As a preferred technical solution of this utility model, a connecting hole is provided between the lower right side wall of the dust collector and the left side wall of the circulating sedimentation tank to connect their inner cavities. A circulating sedimentation tank cover is installed at the top opening of the circulating sedimentation tank. A water level sensor is fixedly installed in the upper part of the inner cavity of the dust collector. A water level cable protection box is fixedly installed on the right side wall of the dust collector corresponding to the position of the water level sensor. An overflow hole is provided on the upper part of the side wall of the dust collector, and an automatic water inlet control valve is fixedly installed thereon. The automatic water inlet control valve is electrically connected to the water level sensor. A water outlet with a valve is provided at the bottom of the dust collector.

[0006] As a preferred technical solution of this utility model, the dust collector is provided with inspection ports on the left and right side walls. A quick-opening cleaning door is installed at the inspection port by means of a quick-opening hinge. The quick-opening cleaning door and the edge of the inspection port are sealed together by a sealing strip. A transparent debugging and observation port is embedded in the middle of the quick-opening cleaning door for observing the flow field and component status inside the dust collector.

[0007] As a preferred technical solution of this utility model, two transparent effect observation windows are symmetrically embedded in the lower part of the front and rear side walls of the dust removal box. The height of the effect observation windows is flush with the water level in the dust removal box, and is used to observe the dust removal effect and water level.

[0008] As a preferred technical solution of this utility model, a power indicator light is fixedly provided at the edge of the upper surface of the dust collector, and a main control explosion-proof box is fixedly installed on the upper part of the outer side wall of the dust collector. The main control explosion-proof box is electrically connected to the explosion-proof motor and the main incoming line explosion-proof box respectively.

[0009] As a preferred technical solution of this utility model, an isolation box bracket is fixedly provided in the inner cavity of the dust removal box and below the centrifugal fan. A water vapor isolation filter box is detachably installed in the isolation box bracket. The air inlet end of the water vapor isolation filter box faces the water dust isolation baffle for deep water vapor separation of the airflow.

[0010] Compared with the prior art, the beneficial effects of this utility model are: Through structural innovation and functional optimization, this device possesses significant advantages in energy saving, safety, dust removal efficiency, and ease of maintenance, as detailed below: 1. Low energy consumption operation: The centrifugal fan and the water vortex work together to use the kinetic energy of the water vortex to assist in dust collection and reduce the fan load. Compared with dust removal devices driven by pure fans, energy consumption is reduced by 20%-30%. At the same time, the automatic water inlet control valve and the water level sensor are linked to avoid ineffective water replenishment. 2. Dual protection against dust and explosion, high safety factor, and efficient dust suppression: It adopts a three-stage dust removal structure of "baffle flow stabilization + vortex water capture + W-shaped bend interception", which can achieve a dust collection efficiency of over 99.97% for particles with a diameter of 0.1-100μm. It is especially suitable for high-risk dust scenarios such as metal grinding and shot blasting. The dust suppression effect fills the gap in the domestic market and achieves zero emission standards. Full explosion-proof design: The explosion-proof motor, the explosion-proof box of the main incoming line, and the explosion-proof box of the main control form an explosion-proof closed loop of the electrical system. Combined with the wetting effect of the water vortex flow field on the dust, the risk of dust explosion is eliminated from the source and meets the safety standards of explosion-proof areas. 3. Stable dust removal efficiency, wide adaptability, and optimized flow field: The combination structure of the main and auxiliary plates of the water vortex generator can form a stable high-speed vortex water flow, ensuring full contact between the dust-laden airflow and the water body, and avoiding dust removal dead zones caused by local airflow short circuits. Deep water-air separation: The water-air isolation filter box works in conjunction with the water-dust isolation baffle to effectively remove water mist entrained in the airflow, avoid water carryover in the exhaust, and ensure that the humidity of the purified air meets the emission requirements. It can adapt to the complex working conditions of grinding and shot blasting of aluminum, magnesium, titanium, zinc, copper, iron, stainless steel and stainless steel metal products involving powder, dust, flammability and explosion. 4. Convenient maintenance, reduced operation and maintenance difficulty, quick disassembly and repair structure: The quick-opening hinge design of the quick cleaning door and the modular installation of the detachable cleaning plate make it possible to clean and replace parts without disassembling the cabinet, reducing maintenance time by 60%; Visual monitoring: The setting of effect observation window and debugging observation port can monitor the operating status of the device in real time, making it easy to predict faults in advance and reduce downtime. 5. The device has a compact structure and strong applicability. All components are integrated into the dust collection box, which occupies a small area and can be flexibly installed in the workshop. At the same time, the independent design of the circulating sedimentation tank avoids interference with the internal structure of the box and facilitates regular cleaning of the settled dust. It is suitable for the treatment of flammable and explosive dust generated by grinding, polishing, deburring, shot blasting and other processes of stainless steel metals such as aluminum, magnesium, titanium, zinc, copper, iron and so on. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] Figure 2 This is a schematic diagram of the internal structure of this utility model.

[0013] Figure 3 This is a schematic diagram of the internal structure of this utility model from another perspective.

[0014] Figure 4 This is a schematic diagram of the structure for the direction of dust airflow movement in this utility model.

[0015] Figure 5 This is a schematic diagram of the main structure of the water vortex generator of this utility model.

[0016] Figure 6 This is a schematic diagram of the installation structure of the water mist separation wolf tooth component of this utility model.

[0017] Figure 7 This is a schematic diagram of the installation structure of the water mist separation wolf tooth lower component of this utility model.

[0018] In the diagram: 1. Dust collector housing; 2. Power indicator light; 3. Purified air outlet; 4. Explosion-proof motor; 5. Main inlet explosion-proof box; 6. Effect observation window; 7. Circulating sedimentation tank cover; 8. Dust inlet; 9. Main control explosion-proof box; 10. Centrifugal fan; 11. Water and dust isolation baffle; 12. Water and air isolation filter box; 13. Isolation box bracket; 14. Water level cable protection box; 15. Water vortex generator main board; 16. Circulating sedimentation tank; 17. Water level sensor; 18. Water vortex generator secondary board; 19. Water vortex guide plate; 20. Water mist separation lower component; 21. Water mist separation upper component; 22. Dust inlet baffle; 23. Quick cleaning door; 24. Quick-opening hinge; 25. Debugging observation port; 26. Overflow hole; 27. Automatic water inlet control valve; 28. Water outlet; 29. ​​Connection hole; 30. Detachable cleaning plate. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-7 This utility model provides a technical solution: A pump-free, energy-saving, dust suppression and explosion-proof wet vortex dust collector includes a dust collector housing 1. A centrifugal fan 10 is fixedly installed in the upper part of the inner cavity of the dust collector housing 1. A purified air outlet 3 is opened at the top of the dust collector housing 1, corresponding to the position directly above the centrifugal fan 10. An explosion-proof motor 4 for driving the centrifugal fan 10 is sealed and installed at the purified air outlet 3. A dust inlet 8 is provided in the lower part of the left side of the dust collector housing 1. A main inlet explosion-proof box 5 is provided in the upper part of the right side of the dust collector housing 1. Between the front and rear side walls of the inner cavity of the dust collector housing 1, along the direction of dust airflow, a dust inlet baffle 22, a water vortex guide plate 19, a water vortex generator main plate 15, and a water-dust isolation baffle 11 are sequentially installed. The dust inlet baffle 22 is vertically fixed inside the dust inlet 8, and the bottom of the dust inlet baffle 22 is connected to the upper water mist separation component 21. The water vortex guide plate 19 is horizontally set below the upper water mist separation component 21. The top surface of the guide plate 19 is detachably equipped with a detachable cleaning plate 30, and the top surface of the detachable cleaning plate 30 is fixedly equipped with a lower water mist separation component 20 that corresponds to the upper water mist separation component 21. The main water vortex generator 15 is inclinedly set on the right side of the dust inlet baffle 22. The bottom of the main water vortex generator 15 is connected to the secondary water vortex generator 18. The water dust isolation baffle 11 is located diagonally above the main water vortex generator 15. A circulating sedimentation tank 16 is provided at the lower edge of the right side of the dust collector 1.

[0021] A connecting hole 29 is provided between the lower right side wall of the dust collector 1 and the left side wall of the circulating sedimentation tank 16 to connect their inner cavities. A circulating sedimentation tank cover plate 7 is installed at the top opening of the circulating sedimentation tank 16. A water level sensor 17 is fixedly installed in the upper part of the inner cavity of the dust collector 1. A water level cable protection box 14 is fixedly installed on the right side wall of the dust collector 1 at the position corresponding to the water level sensor 17. An overflow hole 26 is provided on the upper part of the side wall of the dust collector 1, and an automatic water inlet control valve 27 is fixedly installed thereon. The automatic water inlet control valve 27 is electrically connected to the water level sensor 17. A water outlet 28 with a valve is provided at the bottom of the dust collector 1.

[0022] The dust collector 1 has inspection ports on its left and right side walls. A quick-opening cleaning door 23 is installed at the inspection port by rotating it through a quick-opening hinge 24. A transparent adjustment and observation port 25 is embedded in the middle of the quick-opening cleaning door 23.

[0023] Two transparent observation windows 6 are symmetrically embedded in the lower part of the front and rear side walls of the dust collection box 1.

[0024] A power indicator light 2 is fixedly installed at the edge of the upper surface of the dust collector 1. A main control explosion-proof box 9 is fixedly installed on the upper part of the outer wall of the dust collector 1. The main control explosion-proof box 9 is electrically connected to the explosion-proof motor 4 and the main incoming line explosion-proof box 5 respectively.

[0025] An isolation box holder 13 is fixedly installed in the inner cavity of the dust collector 1 and below the centrifugal fan 10. A water vapor isolation filter box 12 is detachably installed in the isolation box holder 13, and the air inlet end of the water vapor isolation filter box 12 faces the water dust isolation baffle 11.

[0026] Working principle: This device is based on a composite dust removal mechanism of "vortex water capture + water-air separation + circulation purification". Through the synergistic effect of mechanical structure and automatic control, it achieves efficient dust capture, separation and purification. The specific working process is as follows: An appropriate amount of clean water is injected into the dust collector 1, with the water level higher than the lower part of the dust inlet baffle 22. After the centrifugal fan 10 is started, negative pressure is drawn into the dust collector 1, which in turn raises the water level on the right side. The channel between the water vortex guide plate 19 on the left side and the water mist separation tooth component 21 is opened so that dust can enter the dust collector 1 from the dust inlet 8.

[0027] Dust introduction and initial flow stabilization: The dust-laden airflow enters the dust collector 1 through the dust inlet 8, first contacting the dust inlet baffle 22. The baffle prevents the airflow from directly impacting the water inside the dust collector 1, avoiding water splashing, and simultaneously stabilizing the dust-laden airflow, guiding it towards the water mist separation tooth-shaped upper component 21 below. During this process, some large dust particles, due to inertia, impact the dust inlet baffle 22 and initially settle into the water at the bottom of the dust collector 1.

[0028] The vortex water dust removal process involves stabilizing the dust-laden airflow, which then continues to flow downwards through the lower water mist separation tooth component 20 (installed on the surface of the detachable cleaning plate 30), forming initial contact with the water flow guided by the lower water vortex guide plate 19. Subsequently, guided by the water vortex guide plate 19, the airflow contacts the upper water mist separation tooth component 21, and then flows to the area between the main water vortex generator 15 and the secondary water vortex generator 18 on the right side. Through the cooperation of the lower water mist separation tooth component 20 and the upper water mist separation tooth component 21, the water body can be separated to ensure thorough mixing of dust and water.

[0029] The main water vortex generator 15 and the secondary water vortex generator 18 work together with the water at the bottom of the dust collector 1 to form a high-speed vortex water flow field. After the airflow enters this area, it is subjected to the centrifugal force and shear force of the vortex water flow and mixes thoroughly with the water. Dust particles are wrapped and captured by the water flow, forming dust-laden wastewater. The airflow changes its direction of motion under the action of the vortex and moves towards the water dust isolation baffle 11 at the upper angle. The water dust isolation baffle 11 further blocks the water droplets carried by the airflow, preventing water and dust from mixing again.

[0030] The water-air separation and purification of exhaust gas involves the airflow, after being isolated by water and dust, continuing to flow upwards and entering the water-air isolation filter box 12 (fixed by the isolation box bracket 13). The filter media (such as high-efficiency filter cotton, metal mesh, etc.) in the water-air isolation filter box 12 deeply intercepts the tiny water mist and fine dust particles remaining in the airflow. Finally, the purified airflow is discharged outside the device through the purified air outlet 3 under the negative pressure of the centrifugal fan 10 (driven by the explosion-proof motor 4), completing the exhaust purification.

[0031] Water circulation and liquid level control: Under the action of gravity, dusty sewage flows into the sedimentation tank through the connection hole 29 between the dust removal box 1 and the circulating sedimentation tank 16. The sewage settles in the tank and the dust particles settle to the bottom of the tank. Meanwhile, the water level sensor 17 monitors the water level in the dust removal box 1 in real time. If the water level is lower than the set value, the signal is transmitted to the control system through the water level cable protection box 14 to trigger the automatic water inlet control valve 27 to replenish water. If the water level is too high, the excess water is discharged through the overflow hole 26 to avoid overloading of the box. When the device is shut down for maintenance, the water in the box can be drained through the outlet 28.

[0032] For maintenance and safety assurance, during daily operation, the dust removal status inside the box can be observed through the effect observation window 6, and the water vortex flow field and filter component working condition can be monitored through the adjustment observation port 25. When cleaning or replacement of parts is required, the quick cleaning door 23 can be opened through the quick-opening hinge 24, and the detachable cleaning plate 30 can be directly disassembled to clean the water mist separation tooth lower component 20, or the water air isolation filter box 12 can be replaced. Maintenance operation is convenient. In addition, the explosion-proof box 5 of the main incoming line, the explosion-proof box 9 of the main control and the explosion-proof motor 4 form a full-process explosion-proof protection to prevent sparks generated by electrical components from igniting dust-laden airflow. The power indicator light 2 displays the operating status of the device in real time to ensure safe operation.

[0033] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pump-free, energy-saving, dust-suppressing and explosion-proof wet vortex dust collector, comprising a dust collector housing (1), wherein a centrifugal fan (10) is fixedly installed in the upper part of the inner cavity of the dust collector housing (1), a purified air outlet (3) is provided at the top of the dust collector housing (1) corresponding to the position directly above the centrifugal fan (10), and an explosion-proof motor (4) for driving the centrifugal fan (10) is sealed and installed at the purified air outlet (3), a dust inlet (8) is provided at the lower part of the left side of the dust collector housing (1), and a main inlet explosion-proof box (5) is provided at the upper part of the right side of the dust collector housing (1), characterized in that: Between the front and rear side walls of the inner cavity of the dust collector (1), a dust inlet baffle (22), a water vortex guide plate (19), a water vortex generator main plate (15), and a water-dust isolation baffle (11) are sequentially installed along the direction of dust airflow. The dust inlet baffle (22) is vertically fixed to the inside of the dust inlet (8), and the bottom of the dust inlet baffle (22) is connected to the water mist separation tooth upper component (21). The water vortex guide plate (19) is horizontally arranged below the water mist separation tooth upper component (21), and its top surface is detachably installed with a disassembly mechanism. The cleaning plate (30) is detachable and the top surface of the cleaning plate (30) is fixedly installed with the water mist separation wolf tooth lower component (20) corresponding to the upper component (21) of the water mist separation wolf tooth. The water vortex generating main plate (15) is inclinedly set on the right side of the dust inlet baffle (22). The bottom of the water vortex generating main plate (15) is connected to the water vortex generating sub-plate (18). The water dust isolation baffle (11) is located diagonally above the water vortex generating main plate (15). A circulating sedimentation tank (16) is provided at the lower edge of the right side of the dust removal box (1).

2. The pump-free, energy-saving, dust suppression and explosion-proof wet vortex dust collector according to claim 1, characterized in that: A connecting hole (29) is provided between the lower right side wall of the dust collector (1) and the left side wall of the circulating sedimentation tank (16) to connect the inner cavities of the two. A circulating sedimentation tank cover plate (7) is installed at the top opening of the circulating sedimentation tank (16). A water level sensor (17) is fixedly installed on the upper part of the inner cavity of the dust collector (1). A water level cable protection box (14) is fixedly installed on the right side wall of the dust collector (1) at the position corresponding to the water level sensor (17). An overflow hole (26) is provided on the upper part of the side wall of the dust collector (1), and an automatic water inlet control valve (27) is fixedly installed. The automatic water inlet control valve (27) is electrically connected to the water level sensor (17). A water outlet (28) with a valve is provided at the bottom of the dust collector (1).

3. The pump-free, energy-saving, dust suppression and explosion-proof wet vortex dust collector according to claim 1, characterized in that: The dust collector (1) has inspection ports on its left and right side walls. A quick cleaning door (23) is installed at the inspection port by means of a quick-opening hinge (24). A transparent debugging and observation port (25) is embedded in the middle of the quick cleaning door (23).

4. The pump-free, energy-saving, dust suppression and explosion-proof wet vortex dust collector according to claim 1, characterized in that: The dust collector (1) has two transparent effect observation windows (6) symmetrically embedded in the lower part of the front and rear side walls.

5. The pump-free, energy-saving, dust suppression and explosion-proof wet vortex dust collector according to claim 1, characterized in that: A power indicator light (2) is fixedly installed at the edge of the upper surface of the dust collector (1). A main control explosion-proof box (9) is fixedly installed on the upper part of the outer wall of the dust collector (1). The main control explosion-proof box (9) is electrically connected to the explosion-proof motor (4) and the main incoming line explosion-proof box (5).

6. The pump-free, energy-saving, dust suppression and explosion-proof wet vortex dust collector according to claim 1, characterized in that: An isolation box holder (13) is fixedly provided in the inner cavity of the dust removal box (1) and below the centrifugal fan (10). A water vapor isolation filter box (12) is detachably installed in the isolation box holder (13). The air inlet of the water vapor isolation filter box (12) faces the water dust isolation baffle (11).

Images