Explosion-proof wet dust collector

Abstract

This utility model discloses an explosion-proof wet dust collector, including a frame base, an explosion-proof separation cylinder, and a water tank. The explosion-proof separation cylinder is located at the end of the frame base and its bottom is connected to the water tank for separating dust through a water bath. It also includes a radial fan, which is assembled at the upper end of the explosion-proof separation cylinder. The fan blades are located inside the explosion-proof separation cylinder cavity. The high-pressure centrifugal suction forces the dust-laden gas into the water tank for water bath dust removal. This utility model combines the high-pressure centrifugal suction of the radial fan with the water mist capture of the inlet spray pipe to form a dual purification mechanism of water bath and spray: the radial fan forces the dust-laden gas into the water tank to complete the initial water bath dust removal, and the inlet spray pipe further captures residual dust particles through water mist. It can effectively handle micron-sized liquid or solid particles, improve the purification efficiency for high humidity and high viscosity dust, and solve the problem of insufficient capture of dust particles with a wide particle size range by traditional single dust removal methods.

Description

Technical Field

[0001] This utility model belongs to the field of waste gas treatment technology, specifically relating to an explosion-proof wet dust collector. Background Technology

[0002] In industrial production and daily life, the emission of dust-laden gases not only causes environmental pollution but may also harm human health and even pose safety hazards. For example, in the food frying and cooking processing industries, as well as in industrial settings such as oil-splashed heat treatment workshops, workpiece welding workshops, and oil-fired boiler emissions, a large amount of oil fumes and dust mixtures are generated. During shot blasting of steel plates, steel pipes, and welded parts, the workpiece surface is usually coated with anti-rust oil, which forms an oil-sludge mixture. This oil-sludge mixture is highly flammable when exposed to static electricity or sparks, posing a serious explosion risk.

[0003] Currently, while existing dust removal equipment on the market can remove dust to a certain extent, it has shortcomings when dealing with dust containing flammable or explosive properties (such as aluminum alloy dust and magnesium alloy dust), as well as dust with moisture, stickiness, and irritating odors.

[0004] Traditional wet dust removal equipment can use water for dust removal, but it mostly uses a single water bath or spray method, which cannot effectively capture dust particles with a large particle size range, resulting in low purification efficiency.

[0005] Existing equipment lacks targeted explosion-proof measures in its structural design, and cannot effectively reduce safety risks for dusty gases containing flammable and explosive components;

[0006] Some wet dust collectors have poorly designed dust discharge mechanisms, which cause the settled dust to accumulate at the bottom of the water tank, making cleaning difficult, affecting the continuous operating efficiency of the equipment, and easily causing secondary pollution or safety problems due to dust accumulation. Utility Model Content

[0007] The purpose of this invention is to provide an explosion-proof wet dust collector to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution: an explosion-proof wet dust collector, comprising a frame base, an explosion-proof separation cylinder, and a water tank, wherein the explosion-proof separation cylinder is located at the end of the frame base and its bottom is connected to the water tank for separating dust through a water bath, and further comprising:

[0009] The radial fan is mounted on the upper end of the explosion-proof separation cylinder. The fan blades are located inside the explosion-proof separation cylinder cavity. The dust-laden gas is forced into the water tank for water bath dust removal by high-pressure centrifugal suction.

[0010] The air intake spray pipe is connected to the bottom of the outer surface of the explosion-proof separation cylinder and is used to spray water mist onto the exhaust gas to capture dust particles.

[0011] The chain-type sludge scraping mechanism is inclinedly set on one side of the water tank and the frame base, with one end extending to the bottom of the inner cavity of the water tank, and is used to scrape off the settled dust and transport it to the outside.

[0012] Preferably, it also includes a water pump and an inlet pipe. The water pump is connected to the water tank through a pipe, and the water outlet end of the water pump is connected to the upper end of the air intake spray pipe through an inlet pipe with a water pipe elbow to provide a spray water source. The bottom of the water pump is fixed on a water pump support base on one side of the frame base.

[0013] Preferably, the upper end of the water tank is provided with an overflow port and a water injection pipe with an inlet valve for water level adjustment and water injection; a drain pipe connected to the water tank is provided on one side of the frame base.

[0014] Preferably, the chain-type sludge scraping mechanism includes an ash discharge conveying hopper, an ash discharge drive shaft A, and an ash discharge drive shaft B; the ash discharge drive shaft A is rotatably disposed inside the water tank, and the ash discharge drive shaft B is rotatably disposed at the discharge end of the ash discharge conveying hopper; a reduction motor is provided on the outside of the ash discharge conveying hopper, and the output shaft of the reduction motor is connected to one end of the ash discharge drive shaft B to drive the sludge scraping action.

[0015] Preferably, ash discharge drive sprockets are symmetrically provided on both the ash discharge drive shaft A and the ash discharge drive shaft B, and the ash discharge drive sprockets on the ash discharge drive shaft A and the ash discharge drive shaft B are connected by a drive chain; L-shaped scraper seats are evenly installed on the drive chain, and strip-shaped ash discharge scrapers are fixed on the scraper seats by bolts, and a scraper reinforcement pressure plate is provided in the middle of the ash discharge scraper.

[0016] Preferably, the ash discharge conveying hopper is provided with a detachable ash discharge hopper cover at the discharge end; the inner cavity of the ash discharge conveying hopper is fixed with flip plate brackets on both sides, and a flip plate is movably installed between the two flip plate brackets for flipping as the ash discharge scraper moves, so as to realize angle adjustment and sealing to prevent leakage.

[0017] Preferably, the exhaust gas inlet end of the air inlet spray pipe is connected to a right-angle duct, and the other end of the right-angle duct is provided with an air inlet pipe with a valve body; an explosion-proof distribution box is provided below the right-angle duct.

[0018] Preferably, the frame base is provided with a water tank observation port that communicates with the water tank; the end of the frame base is provided with an observation cylinder base, the top of the observation cylinder base is sealed and connected to the bottom of the explosion-proof separation cylinder, and the side of the observation cylinder base is provided with an observation port.

[0019] Preferably, the outer wall of the explosion-proof separation cylinder is provided with a hinged observation door and window; and a silencer is provided at the air outlet of the radial fan.

[0020] Compared with the prior art, the technical effects and advantages of this utility model are as follows:

[0021] This invention combines the high-pressure centrifugal suction of a radial fan with the water mist capture of an intake spray pipe to form a dual purification mechanism of water bath and spray: the radial fan pressurizes the dust-laden gas into the water tank to complete the initial water bath dust removal, and the intake spray pipe further captures residual dust particles through water mist. It can effectively handle micron-sized liquid or solid particles, improve the purification efficiency for high-humidity and high-viscosity dust, and solve the problem of insufficient capture of dust particles with a wide range of particle sizes by traditional single dust removal methods.

[0022] This utility model equips the equipment with special components such as explosion-proof separation cylinders and explosion-proof distribution boxes, and eliminates the flammability of dust through the wetting effect of water baths and sprays. It reduces the risk of explosion in flammable and explosive scenarios such as oil putty and metal dust in shot blasting workshops from both structural and processing principle aspects, and solves the defects of traditional equipment that lack targeted explosion-proof measures.

[0023] This utility model's chain-type sludge scraping mechanism uses a geared motor to drive a transmission chain, which in turn drives a scraper to automatically scrape away the sediment at the bottom of the water tank. Combined with the sealing and leak-proof design of the flap, it prevents dust accumulation. Attached Figure Description

[0024] Figure 1 This is a perspective view of the explosion-proof wet dust collector of this utility model;

[0025] Figure 2 This is a top view of the explosion-proof wet dust collector of this utility model;

[0026] Figure 3 This is an exploded view of the chain-type sludge scraping mechanism of this utility model;

[0027] Figure 4 This is an exploded view of the water tank of this utility model.

[0028] In the diagram: 1. Frame base; 2. Explosion-proof separation cylinder; 3. Water tank; 4. Chain-type sludge scraping mechanism; 5. Radial fan; 6. Air inlet spray pipe; 7. Water pump; 8. Water inlet pipe; 9. Water pump support base; 10. Drainage pipe; 11. Overflow port; 12. Water injection pipe; 13. Ash discharge conveying hopper; 14. Ash discharge drive shaft A; 15. Ash discharge drive shaft B; 16. Ash discharge drive sprocket; 17. Gear motor; 18. Drive chain; 19. Scraper seat; 20. Ash discharge rubber scraper; 21. Ash discharge hopper cover; 22. Flip plate bracket; 23. Flip plate; 24. Scraper reinforcement pressure plate; 25. Right angle air duct; 26. Air inlet pipe; 27. Explosion-proof distribution box; 28. Observation cylinder base. Detailed Implementation

[0029] 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.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed", "equipped with", "sleeved with", "connected", etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0031] Please see Figure 1-4 This utility model provides a technical solution: This explosion-proof wet dust collector adopts a modular design, and the overall structure includes three core components: a frame base 1, an explosion-proof separation cylinder 2, and a water tank 3. The frame base 1 is equipped with lockable casters for easy movement; the explosion-proof separation cylinder 2 is fixed to the left end of the frame base 1 via a flange connection, and its bottom is connected to the water tank 3 via a DN200 stainless steel pipe, enabling efficient water bath dust separation. The water tank 3 has a rectangular structure and is made of thickened fiberglass, possessing good corrosion resistance.

[0032] Radial fan 5 is a Y5-47 type explosion-proof centrifugal fan with a power of 7.5kW, installed at the upper flange interface of the explosion-proof separation cylinder 2. Its blades are made of aluminum alloy and have undergone dynamic balancing tests to ensure stable operation. The blades are completely located inside the cavity of the explosion-proof separation cylinder 2. Through the generated high-pressure centrifugal suction, the dust-laden gas can be forced into the water tank 3 at a wind speed of 15m / s for water bath dust removal, with a wind pressure of up to 3000Pa. The air inlet spray pipe 6 is connected to the bottom of the outer surface of the explosion-proof separation cylinder 2 through a flange, and is used to spray water mist onto the exhaust gas to efficiently capture dust particles.

[0033] The chain-type sludge scraping mechanism 4 is inclined at 30° and is located on the right side of the water tank 3 and the frame base 1. One end of it extends to near the bottom of the inner cavity of the water tank 3, which can thoroughly scrape off the settled dust and transport it to the outside. The mechanism includes a sludge discharge conveying hopper 13, a sludge discharge drive shaft A14, and a sludge discharge drive shaft B15. The sludge discharge drive shaft A14 is rotatably mounted inside the water tank 3 via a bearing seat, and the sludge discharge drive shaft B15 is rotatably mounted at the discharge end of the sludge discharge conveying hopper 13. The sludge discharge conveying hopper 13 is welded from a 10mm thick steel plate, and a YTC7132 type geared motor 17 with a power of 1.5kW and a reduction ratio of 1:50 is installed on its outer side. The output shaft of the geared motor 17 is connected to the sludge discharge drive shaft B15 through a coupling to drive the sludge scraping action.

[0034] Both the ash discharge drive shaft A14 and the ash discharge drive shaft B15 are symmetrically equipped with four ash discharge drive sprockets 16 with a pitch of 12.7mm. The two are connected by a drive chain 18 of model 16A. L-shaped scraper seats 19 are evenly installed on the drive chain 18. The scraper seats 19 are made of cast steel and are fixed with strip-shaped ash discharge rubber scrapers 20 by M10 bolts. The ash discharge rubber scrapers 20 are made of nitrile rubber and have a scraper reinforcement pressure plate 24 in the middle to enhance the service life of the scrapers.

[0035] The ash discharge conveying hopper 13 has a detachable ash discharge hopper cover 21 fixed by a buckle at the discharge end, which is convenient for inspection and cleaning. The inner cavity of the ash discharge conveying hopper 13 is fixed with flip plate brackets 22 on both sides, and a flip plate 23 is movably installed between the two flip plate brackets 22. It can be flipped as the ash discharge scraper 20 moves, so as to realize angle adjustment and sealing to prevent leakage, effectively preventing dust from overflowing.

[0036] The flap 23, through contact with the ash discharge scraper 20, can promptly push the material in the ash discharge conveyor hopper 13 to the next conveying section, preventing material accumulation at the discharge end. This design ensures continuous material conveying and avoids blockages or efficiency reduction caused by accumulation.

[0037] The flap 23 works in conjunction with the ash discharge conveyor hopper 13. By adjusting the angle of the flap 23 and the movement trajectory of the scraper, the material can be guided in a directional manner during the conveying process. This dynamic adjustment mechanism can optimize the conveying path and improve conveying efficiency according to actual working conditions (such as material moisture content and adhesion).

[0038] The exhaust gas inlet end of the air inlet spray pipe 6 is connected to a 90° bend right-angle duct 25 via a flange. The bend right-angle duct 25 is made of DN150 galvanized steel pipe, and the other end is equipped with a DN150 D371X-16 butterfly valve air inlet pipe 26 for easy control of the air intake. Below the bend right-angle duct 25 is a BXMD51 explosion-proof distribution box 27 with an IP54 protection rating. It contains Schneider brand circuit breakers and contactors to ensure the safe operation of the equipment's electrical system.

[0039] The frame base 1 is equipped with an observation port for an organic glass water tank, which facilitates the observation of the water level and water quality in the water tank 3. The end of the frame base 1 is equipped with an observation cylinder seat 28, which is made of stainless steel. The top of the observation cylinder seat 28 is sealed to the bottom of the explosion-proof separation cylinder 2 through a sealing ring. The side of the observation cylinder seat 28 is equipped with an observation port, which can be used to observe the flow of gas in the separation cylinder.

[0040] The outer wall of the explosion-proof separation cylinder 2 is equipped with a hinged observation door and window, which is made of double-layer tempered glass, making it easy to observe the internal dust removal situation; the radial fan 5 is equipped with an impedance composite silencer, model XHS-150, at the air outlet, which can reduce the fan operating noise to below 85dB, meeting environmental protection requirements.

[0041] In addition, the equipment also includes an ISG50-160 water pump 7 and a DN50 inlet pipe 8. The water pump 7 has a power of 2.2kW and a head of 32m. It is connected to the water tank 3 through a DN50 rubber hose. The water outlet of the water pump 7 is connected to the upper end of the air intake spray pipe 6 through the inlet pipe 8 with a water pipe elbow, providing a stable water source for the spray system. The bottom of the water pump 7 is fixed to the steel welded water pump support 9 on one side of the frame base 1 by bolts. The bottom of the support 9 is equipped with shock-absorbing pads to reduce vibration during operation.

[0042] The upper end of the water tank 3 is equipped with an overflow port 11 and a water inlet pipe 12 with a DN40 copper inlet valve, which are used to precisely adjust the water level and fill the water tank 3; the side of the frame base 1 is equipped with a drain pipe 10 with a DN50 ball valve, which facilitates the periodic discharge of sewage from the water tank 3 for cleaning.

[0043] The explosion-proof wet scrubber used in this invention combines the water bath and spraying methods of a Venturi wet scrubber. First, the suction force of a high-pressure centrifugal fan forces the dust-laden gas into a water tank filled to a certain height. The water bath adsorbs some of the dust. After being evenly distributed, the gas flows from bottom to top, while the high-pressure nozzles spray water mist from top to bottom, capturing the remaining dust particles. Its filtration efficiency can reach over 85%.

[0044] Venturi wet scrubbers can effectively remove liquid or solid particles with diameters of 0.1-20 micrometers from airflow, while also removing some gaseous pollutants. They offer advantages such as simple structure, small footprint, convenient operation and maintenance, and high purification efficiency. They can handle high-temperature, high-humidity airflows, minimizing the possibility of ignition and explosion.

[0045] Venturi wet scrubbers have relatively low manufacturing costs. They are the ideal dust removal method for industries such as aluminum alloy dust, chemicals, painting, glazing, and pigments, producing dust with moisture, stickiness, and irritating odors. This is because they not only remove dust but also utilize water to remove some of the odor. For harmful gases (such as small amounts of sulfur dioxide or hydrochloric acid mist), an absorbent can be added to the scrubbing liquid for absorption.

[0046] The pressure loss of the Venturi wet scrubber is 0.2-1.5 kPa, including the spray tower and cyclone scrubber. Under normal operating conditions, the water consumption (liquid-to-gas ratio) is 0.5-3.0 liters per cubic meter, and the purification efficiency for particles larger than 10 micrometers can reach 98%.

[0047] Specifically, during use, in the dust-laden gas introduction stage...

[0048] Dust-laden gas (such as industrial fumes, metal dust mixtures, etc.) enters the curved right-angle duct 25 through the inlet duct 26 with a valve body, and is then guided to the bottom of the outer surface of the explosion-proof separation cylinder 2 via the inlet spray pipe 6. During this process, the explosion-proof distribution box 27 provides safe power supply to the various electrical components of the equipment (such as the radial fan 5, water pump 7, geared motor 17, etc.) to ensure stable operation in the explosion-proof environment.

[0049] Spray pretreatment stage

[0050] Water pump 7 draws water from water tank 3 through a pipeline and delivers it to the upper end of air intake spray pipe 6 via inlet pipe 8 with a water pipe elbow, causing air intake spray pipe 6 to spray water mist onto the flowing exhaust gas. The water mist comes into full contact with the dust-laden gas, pre-capturing some dust particles and simultaneously wetting the dust to reduce its flammability, laying the foundation for subsequent water bath dust removal.

[0051] Water bath deep dust removal stage

[0052] After the radial fan 5 starts, its blades located inside the explosion-proof separation cylinder 2 generate high-pressure centrifugal suction, forcing the dust-laden gas, which has undergone spray pretreatment, into the water in the water tank 3. The gas undergoes a water bath process in the water, and a large amount of dust is adsorbed by the water and settles to the bottom of the water tank 3; the fine dust particles that are not completely captured rise with the airflow and enter the interior of the explosion-proof separation cylinder 2, where they further come into contact with and separate from the water vapor inside the cylinder.

[0053] Purification of gas emission stage

[0054] After water bath and separation, the clean gas flows upward under the action of radial fan 5 and is finally discharged through the air outlet. The silencer at the air outlet can reduce the noise during gas emission and reduce the impact on the surrounding environment. At the same time, the hinged observation door and window on the outer wall of the explosion-proof separation cylinder 2 and the observation cylinder seat 28 (with an observation port on the side) at the end of the frame base 1 can be used to observe the gas separation status and the situation inside the cylinder in real time.

[0055] Water level control stage of water tank 3

[0056] Water tank 3 is replenished with clean water through water inlet pipe 12 with inlet valve, and overflow port 11 at the top is used to balance the water level and prevent excessive water overflow. When it is necessary to replace the water or clean water tank 3, wastewater can be discharged through drain pipe 10 on one side of the frame base 1. The water tank observation port on the frame base 1 allows operators to monitor the water level and sedimentation in water tank 3, ensuring stable water bath dust removal effect.

[0057] Dust settling cleaning stage

[0058] The dust settled at the bottom of water tank 3 is automatically cleaned by chain scraper mechanism 4: the geared motor 17 drives the ash discharge transmission shaft B15 to rotate, and through the cooperation of ash discharge transmission sprocket 16 and transmission chain 18, the ash discharge transmission shaft A14 is driven to rotate synchronously.

[0059] The L-shaped scraper seat 19 on the transmission chain 18 drives the dust scraper 20 (with the stability enhanced by the scraper reinforcement plate 24) to scrape the dust from the bottom of the water tank 3 upwards and transport it to the dust discharge conveying hopper 13.

[0060] During the conveying process, the flap 23 inside the ash discharge conveying hopper 13 flips as the ash discharge scraper 20 moves, which not only allows for angle adjustment to match the scraper's movement trajectory, but also seals and prevents leakage, thus avoiding dust scattering.

[0061] Finally, the dust is discharged through the vertical outlet of the ash discharge conveyor hopper 13, and the detachable ash discharge hopper cover 21 facilitates regular cleaning of residual dust inside the hopper.

[0062] Equipment monitoring and maintenance assistance: During operation, operators can check the sedimentation amount and water level in water tank 3 through the water tank observation port, and monitor the working condition of the connection between the explosion-proof separation cylinder and water tank 3 through the observation port of the observation cylinder seat 28, so as to detect and deal with abnormalities in a timely manner and ensure the continuous and stable operation of the equipment.

[0063] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An explosion-proof wet dust collector, comprising a frame base (1), an explosion-proof separation cylinder (2), and a water tank (3), wherein the explosion-proof separation cylinder (2) is disposed at the end of the frame base (1), and the bottom of the explosion-proof separation cylinder (2) is connected to the water tank (3), for separating dust by water bath, characterized in that, Also includes: Radial fan (5) is mounted on the upper end of explosion-proof separation cylinder (2). The fan blades of radial fan (5) are located inside the cavity of explosion-proof separation cylinder (2). The dust-laden gas is forced into the water tank (3) for water bath dust removal by high-pressure centrifugal suction. The air intake spray pipe (6) is connected to the bottom end of one side of the outer surface of the explosion-proof separation cylinder (2) and is used to spray water mist onto the exhaust gas to capture dust particles. The chain scraping mechanism (4) is inclinedly set on one side of the water tank (3) and the frame base (1). One end of the chain scraping component in the chain scraping mechanism (4) extends to the bottom of the inner cavity of the water tank (3) to scrape off the settled dust and transport it to the outside.

2. The explosion-proof wet dust collector according to claim 1, characterized in that: It also includes a water pump (7) and an inlet pipe (8). The water pump (7) is connected to the water tank (3) through a pipe. The water outlet of the water pump (7) is connected to the upper end of the air intake spray pipe (6) through the inlet pipe (8) with a water pipe elbow, which is used to provide spray water source. The bottom of the water pump (7) is fixed on the water pump support base (9) on one side of the frame base (1).

3. The explosion-proof wet dust collector according to claim 1, characterized in that: The water tank (3) is provided with an overflow port (11) and a water injection pipe (12) with an inlet valve at the upper end for water level adjustment and water injection; the frame base (1) is provided with a drain pipe (10) connected to the water tank (3) on one side.

4. The explosion-proof wet dust collector according to claim 1, characterized in that: The chain-type sludge scraping mechanism (4) includes a sludge discharge conveying hopper (13), a sludge discharge drive shaft A (14), and a sludge discharge drive shaft B (15). The sludge discharge drive shaft A (14) is rotatably located inside the water tank (3), and the sludge discharge drive shaft B (15) is rotatably located at the discharge end of the sludge discharge conveying hopper (13). A reduction motor (17) is provided on the outside of the sludge discharge conveying hopper (13). The output shaft of the reduction motor (17) is connected to one end of the sludge discharge drive shaft B (15) to drive the sludge scraping action. The discharge port of the sludge discharge conveying hopper (13) is vertically downward.

5. The explosion-proof wet dust collector according to claim 4, characterized in that: Ash discharge drive shafts A (14) and B (15) are symmetrically provided with ash discharge drive sprockets (16), and the ash discharge drive sprockets (16) on ash discharge drive shafts A (14) and B (15) are connected by a drive chain (18); L-shaped scraper seats (19) are evenly installed on the drive chain (18), and strip-shaped ash discharge scrapers (20) are fixed on the scraper seats (19) by bolts, and a scraper reinforcement pressure plate (24) is provided in the middle of the ash discharge scraper (20).

6. The explosion-proof wet dust collector according to claim 5, characterized in that: The discharge end of the ash discharge conveying hopper (13) is provided with a detachable ash discharge hopper cover (21); the inner cavity of the ash discharge conveying hopper (13) is fixed with flip plate brackets (22) on both sides, and a flip plate (23) is movably installed between the two flip plate brackets (22) for flipping as the ash discharge scraper (20) moves, so as to realize angle adjustment and sealing to prevent leakage.

7. The explosion-proof wet dust collector according to claim 5, characterized in that: The exhaust gas inlet end of the air inlet spray pipe (6) is connected to a right-angle duct (25), and the other end of the right-angle duct (25) is provided with an air inlet pipe (26) with a valve body; an explosion-proof distribution box (27) is provided below the right-angle duct (25).

8. The explosion-proof wet dust collector according to claim 1, characterized in that: The frame base (1) is provided with a water tank observation port that communicates with the water tank (3); the end of the frame base (1) is provided with an observation cylinder base (28), the top of the observation cylinder base (28) is sealed and connected to the bottom of the explosion-proof separation cylinder (2), and the side of the observation cylinder base (28) is provided with an observation port.

9. The explosion-proof wet dust collector according to claim 1, characterized in that: The explosion-proof separation cylinder (2) has a hinged observation door and window on its outer wall; the radial fan (5) has a silencer at its outlet.

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