Induced collection device for flammable and explosive dust in explosive and powder places

Abstract

The utility model relates to the technical field of treatment of flammable and explosive dust in explosive and powder places, in particular to a device for inducing and collecting the flammable and explosive dust in the explosive and powder places, which can enable the flammable and explosive dust to be in more sufficient contact with water mist, enhance the treatment effect on the flammable and explosive dust and improve the practicability. Comprising a box body, four sets of supporting legs are fixedly arranged at the bottom end of the box body, a supporting plate is fixedly connected to the left end of the box body, a centrifugal fan is fixedly installed on the supporting plate, the output end of an exhaust pipe is fixedly connected with a blocking cover through a supporting rod, and a box cover rotationally covers an opening through a hinge; a water pumping pipe is communicated between the input end of the booster water pump and the interior of the water tank, the output end of the booster water pump is fixedly communicated with a conveying pipe, the conveying pipe is fixedly installed on the top of the box body, the top end in the box body is fixedly connected with a flow equalizing disc, the output end of the conveying pipe is fixedly communicated with the flow equalizing disc, and the bottom end of the flow equalizing disc is evenly and fixedly communicated with multiple sets of atomizing nozzles.

Description

Technical Field

[0001] This utility model relates to the technical field of flammable and explosive dust treatment in explosives and pyrotechnic sites, and in particular to an induced collection device for flammable and explosive dust in explosives and pyrotechnic sites. Background Technology

[0002] In order to improve the on-site working environment of explosives production sites and ensure that the flammable and explosive waste gases generated during the explosives production process meet emission standards, the dust removal devices currently used in explosives production sites are mainly wet dust removal methods.

[0003] Currently, when dealing with flammable and explosive dust in explosives sites, workers spray water into the air using sprinkler systems. However, this method results in insufficient contact between the flammable and explosive dust and the water, and the dust will float up again after the ground dries. This leads to poor dust treatment and insufficient practicality. Therefore, there is an urgent need for a flammable and explosive dust induction and collection device for explosives sites. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a flammable and explosive dust induction and collection device that enables more thorough contact between flammable and explosive dust and water mist, enhances the treatment effect of flammable and explosive dust, and improves the practicality of the device.

[0005] Technical solution

[0006] To achieve the above objectives, this utility model provides the following technical solution: a flammable and explosive dust induction and collection device for explosive or flammable powder sites, comprising a housing, an induction and diversion mechanism, and a spraying mechanism. Four sets of support legs are fixedly installed at the bottom of the housing. The induction and diversion mechanism includes a centrifugal fan. A support plate is fixedly connected to the left end of the housing, and the centrifugal fan is fixedly mounted on the support plate. Wind hoods are fixedly connected to both the left and right ends of the housing. Dust inlet pipes and exhaust pipes are fixedly connected to the two sets of wind hoods, respectively. A baffle is fixedly connected to the output end of the exhaust pipe via a support rod. An outlet pipe is fixedly connected to the outlet of the centrifugal fan, and a [missing information - likely a design feature] is provided at the bottom of the exhaust pipe. The system has an opening, with the outlet end of the air duct fixedly passing through the bottom opening of the exhaust duct and extending into the exhaust duct. The spraying mechanism includes a water tank and a booster pump. The water tank is placed on the rear side of the housing, and the top of the water tank has an opening. A cover is mounted on the opening by a hinge. The booster pump is placed on the rear side of the water tank. A water pumping pipe connects the input end of the booster pump to the inside of the water tank. A delivery pipe is fixedly connected to the output end of the booster pump. The delivery pipe is fixedly installed on the top of the housing. A flow equalization plate is fixedly connected to the top of the housing. The output end of the delivery pipe is fixedly connected to the flow equalization plate. Multiple sets of atomizing nozzles are evenly fixedly connected to the bottom of the flow equalization plate.

[0007] Preferably, a recycling filtration mechanism is provided between the housing and the water tank. The recycling filtration mechanism includes a filter screen, a sealing cover is fixedly provided at the front end of the filter screen, and a pick-up and drop-off port is provided at the front end of the housing. The exhaust pipe is slidably placed inside the housing through cooperation with the pick-up and drop-off port. The sealing cover is placed on the pick-up and drop-off port. Two sets of L-shaped support bars are symmetrically fixed on the inner wall of the housing. The tops of the two sets of L-shaped support bars are horizontal with the lower edge of the pick-up and drop-off port. The filter screen is placed on the two sets of L-shaped support bars. A return pipe is provided between the rear end of the housing and the top of the water tank.

[0008] Preferably, a level mirror is provided on the side of the water tank.

[0009] Preferably, the sealing cap is fixedly provided with a handle at its front end.

[0010] Preferably, two sets of reinforcing rods are symmetrically fixedly connected between the bottom end of the support plate and the left support leg.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: During use, the water tank is filled with sufficient water. The centrifugal fan and booster pump are started. The centrifugal fan blows air into the exhaust pipe through the outlet pipe, creating negative pressure inside the exhaust pipe. This negative pressure then creates negative pressure at the housing and dust inlet pipe, causing flammable and explosive dust to be drawn into the housing under this negative pressure. The booster pump then draws water from the water tank through the suction pipe and transports it to the equalization plate through the delivery pipe. Then, the water is further... The atomizing nozzle evenly sprays water into the interior of the chamber. The water mist is sprayed out from the top inside the chamber. Dust enters from the side through the dust inlet duct. The front and rear ends of the flow distribution plate contact the inner wall of the chamber, covering the top of the chamber. This allows the sprayed water mist to cover the incoming dust, ensuring that the dust fully contacts the water mist and gradually forms large particles that fall due to gravity, thus achieving the purpose of dust suppression. This allows flammable and explosive dust to come into more thorough contact with water, enhancing the treatment effect of flammable and explosive dust and improving practicality. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the isometric structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the left-side structure of this utility model;

[0014] Figure 3 This is a schematic diagram of the right-side axonometric structure of this utility model;

[0015] Figure 4 This is a schematic diagram of the longitudinal section structure of this utility model.

[0016] Figure 5 This is a schematic diagram of the isometric transverse section structure of this utility model;

[0017] The following are labeled in the attached diagram: 1. Housing; 2. Support legs; 3. Support plate; 4. Centrifugal fan; 5. Fan hood; 6. Dust inlet pipe; 7. Exhaust pipe; 8. Baffle; 9. Outlet pipe; 10. Water tank; 11. Housing cover; 12. Booster pump; 13. Water suction pipe; 14. Delivery pipe; 15. Flow equalization plate; 16. Atomizing nozzle; 17. Filter screen; 18. L-shaped support bar; 19. Sealing cover; 20. Return pipe; 21. Liquid level mirror; 22. Handle; 23. Reinforcing rod. Detailed Implementation

[0018] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0019] Example

[0020] Please see Figures 1-5This utility model discloses a flammable and explosive dust induction and collection device for explosives sites, comprising a housing 1. Four sets of support legs 2 are fixedly installed at the bottom of the housing 1. A support plate 3 is fixedly connected to the left end of the housing 1. A centrifugal fan 4 is fixedly installed on the support plate 3. Both ends of the housing 1 are fixedly connected to air hoods 5. Dust inlet pipes 6 and exhaust pipes 7 are fixedly connected to the two sets of air hoods 5 respectively. A baffle 8 is fixedly connected to the output end of the exhaust pipe 7 via a support rod. An outlet pipe 9 is fixedly connected to the outlet of the centrifugal fan 4. The bottom of the exhaust pipe 7 has an opening, and the output end of the outlet pipe 9 passes through the exhaust fan. The bottom of pipe 7 is open and extends into the interior of exhaust pipe 7. Water tank 10 is placed on the rear side of box body 1. Water tank 10 has an open top, and a box cover 11 is installed on the open top by a hinged rotating cover. Booster pump 12 is placed on the rear side of water tank 10. A water pump 13 connects the input end of booster pump 12 to the interior of water tank 10. A delivery pipe 14 is fixedly connected to the output end of booster pump 12. Delivery pipe 14 is fixedly installed on the top of box body 1. A flow equalization plate 15 is fixedly connected to the top of the interior of box body 1. The output end of delivery pipe 14 is fixedly connected to flow equalization plate 15. The bottom of flow equalization plate 15 is evenly fixed. The system has multiple sets of atomizing nozzles 16. During use, the water tank 10 is filled with sufficient water. The centrifugal fan 4 and the booster pump 12 are started. The centrifugal fan 4 blows air into the exhaust pipe 7 through the outlet pipe 9, creating a negative pressure inside the exhaust pipe 7. This negative pressure, in turn, creates negative pressure at the housing 1 and the dust inlet pipe 6, causing flammable and explosive dust to be drawn into the housing 1 under this negative pressure. The booster pump 12 then draws water from the water tank 10 through the suction pipe 13 and transports it to the distribution plate 15 through the delivery pipe 14. Then, water is evenly atomized and sprayed into the interior of the chamber 1 through the atomizing nozzle 16. The water mist is sprayed out from the top inside the chamber 1. Dust enters from the side through the dust inlet pipe 6. The front and rear ends of the flow equalization plate 15 contact the inner wall of the chamber 1, covering the top of the chamber 1. This allows the sprayed water mist to cover the incoming dust, so that the incoming dust can fully contact the water mist and gradually form large particles, which fall down by gravity, thereby achieving the purpose of dust suppression. This allows flammable and explosive dust to come into more complete contact with water, enhancing the treatment effect of flammable and explosive dust and improving practicality.

[0021] A recycling filtration mechanism is provided between the housing 1 and the water tank 10. The recycling filtration mechanism includes a filter screen 17, with a sealing cover 19 fixedly attached to the front end of the filter screen 17. The front end of the housing 1 has a loading / unloading port. The exhaust pipe 7 is slidably placed inside the housing 1 through cooperation with the loading / unloading port. The sealing cover 19 covers the loading / unloading port. Two sets of L-shaped support bars 18 are symmetrically fixed on the inner wall of the housing 1. The tops of the two sets of L-shaped support bars 18 are horizontal with the lower edge of the loading / unloading port. The filter screen 17 rests on the two sets of L-shaped support bars 18. A return pipe 20 is provided between the rear end of the housing 1 and the top of the water tank 10. When treating dust, the large particles formed by the combination of dust and water mist are intercepted by the filter screen 17. The filtered water flows to the bottom of the housing 1 and returns to the water tank 10 through the return pipe 20, so that the filtered water can be reused to avoid waste. The intercepted dust impurities can be cleaned by pulling out the filter screen 17, which is convenient for dust collection and cleaning.

[0022] A level mirror 21 is provided on the side of the water tank 10; by providing the level mirror 21, it is easy to observe the water level inside the water tank 10 so that it can be replenished in time.

[0023] The front end of the sealing cover 19 is fixedly provided with a handle 22; by providing the handle 22, the filter screen 17 can be more conveniently picked up and put down.

[0024] Two sets of reinforcing rods 23 are symmetrically fixedly connected between the bottom end of the support plate 3 and the left support leg 2; by setting the reinforcing rods 23, the support plate 3 can be effectively supported, making the support plate 3 more firmly and stably installed.

[0025] The working principle of this utility model for the flammable and explosive dust induction and collection device at explosive sites is as follows: When in use, the water tank 10 is filled with sufficient water. The centrifugal fan 4 and the booster pump 12 are started. The centrifugal fan 4 blows air into the exhaust pipe 7 through the outlet pipe 9, creating a negative pressure inside the exhaust pipe 7. This negative pressure, in turn, creates negative pressure at the housing 1 and the dust inlet pipe 6, causing the flammable and explosive dust to be drawn into the housing 1 under this negative pressure. The booster pump 12 then draws water from the water tank 10 through the suction pipe 13 and transports it to the equalization plate 15 through the delivery pipe 14. The water is then evenly atomized and sprayed into the housing 1 through the atomizing nozzle 16. The water mist is dispersed from the housing... The water mist sprays out from the top inside the housing 1. Dust enters from the side through the dust inlet pipe 6. The front and rear ends of the equalization plate 15 contact the inner wall of the housing 1, covering the top of the housing 1. This allows the sprayed water mist to cover the incoming dust, ensuring that the dust fully contacts the water mist and gradually forms large particles that fall due to gravity, thus achieving the purpose of dust suppression. The large particles formed by the combination of dust and water mist are intercepted by the filter screen 17. The filtered water flows to the bottom of the housing 1 and returns to the water tank 10 through the return pipe 20, allowing the filtered water to be reused and avoiding waste. The intercepted dust impurities can be cleaned by pulling out the filter screen 17.

[0026] The flammable and explosive dust induction and collection device for explosives sites of this utility model can be installed, connected, or set up using common mechanical methods. Any method that can achieve its beneficial effect can be implemented. The centrifugal fan, booster pump, and atomizing nozzle of the flammable and explosive dust induction and collection device for explosives sites of this utility model are commercially available. Technical personnel in this industry only need to install and operate it according to the accompanying instruction manual.

[0027] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A device for inducing and collecting flammable and explosive dust in explosive or flammable material storage areas, comprising a housing (1), characterized in that, It also includes a flow induction and drainage mechanism and a spraying mechanism; Box body (1), the bottom end of which is fixedly provided with four sets of support legs (2); The induction and diversion mechanism includes a centrifugal fan (4), a support plate (3) is fixedly connected to the left end of the box (1), the centrifugal fan (4) is fixedly installed on the support plate (3), the left and right ends of the box (1) are fixedly connected to the wind hood (5), the two sets of wind hoods (5) are respectively fixedly connected to the dust inlet pipe (6) and the exhaust pipe (7), the output end of the exhaust pipe (7) is fixedly connected to the baffle (8) through the support rod, the outlet of the centrifugal fan (4) is fixedly connected to the outlet pipe (9), the bottom of the exhaust pipe (7) is provided with an opening, the output end of the outlet pipe (9) is fixedly passed through the bottom opening of the exhaust pipe (7) and extends into the interior of the exhaust pipe (7); The spraying mechanism includes a water tank (10) and a booster pump (12). The water tank (10) is placed on the rear side of the box body (1). The top of the water tank (10) is open, and a box cover (11) is installed on the open by rotating the cover through a hinge. The booster pump (12) is placed on the rear side of the water tank (10). A water pumping pipe (13) is connected between the input end of the booster pump (12) and the inside of the water tank (10). A delivery pipe (14) is fixedly connected to the output end of the booster pump (12). The delivery pipe (14) is fixedly installed on the top of the box body (1). A flow equalization plate (15) is fixedly connected to the top of the inside of the box body (1). The output end of the delivery pipe (14) is fixedly connected to the flow equalization plate (15). Multiple sets of atomizing nozzles (16) are evenly fixedly connected to the bottom end of the flow equalization plate (15).

2. The flammable and explosive dust induction and collection device for explosive or flammable powder sites as described in claim 1, characterized in that, A recycling filtration mechanism is provided between the box body (1) and the water tank (10). The recycling filtration mechanism includes a filter screen (17). A sealing cover (19) is fixedly provided at the front end of the filter screen (17). A pick-up and drop-off port is provided at the front end of the box body (1). The exhaust pipe (7) is slidably placed inside the box body (1) through cooperation with the pick-up and drop-off port. The sealing cover (19) covers the pick-up and drop-off port. Two sets of L-shaped support bars (18) are fixedly fixed symmetrically on the inner wall of the box body (1). The top of the two sets of L-shaped support bars (18) is horizontal with the lower edge of the pick-up and drop-off port. The filter screen (17) is placed on the two sets of L-shaped support bars (18). A return pipe (20) is provided between the rear end of the box body (1) and the top of the water tank (10).

3. The flammable and explosive dust induction and collection device for explosive or flammable powder sites as described in claim 2, characterized in that, A level mirror (21) is provided on the side of the water tank (10).

4. The flammable and explosive dust induction and collection device for explosive or flammable powder sites as described in claim 3, characterized in that, The sealing cap (19) is fixedly provided with a handle (22) at its front end.

5. The flammable and explosive dust induction and collection device for explosive or flammable powder sites as described in claim 4, characterized in that, Two sets of reinforcing rods (23) are symmetrically fixedly connected between the bottom end of the support plate (3) and the left leg (2).

Images