A large-scale dry fog dust suppression device and its use method

Abstract

The present invention discloses a large-scale dry mist dust suppression device and a method of using the same, which belongs to the technical field of dry mist dust suppression. By moving the sliding sleeve upward, the pull rod can be pulled to deflect at an angle, so that the two opposite pull rods can pull the dust suppression cover to rotate around the pin shaft at the end of the pull rod until the side walls of the two dust suppression covers are in a relatively horizontal state. At this time, the nozzle in the dust suppression cover faces downward, so that the nozzle can spray dry mist for dust suppression. During the dry mist dust suppression process, the exhaust fan is started, and the exhaust fan can inhale part of the dry mist and discharge it to one side of the dust suppression cover, and cooperate with the nozzle to spray downward, thereby greatly improving the range of dry mist dust suppression. Since the dry mist sprayed by the nozzle has a certain flow speed, it can attract the external air containing smoke and dust to enter the dust suppression cover through the exhaust hole, thereby achieving the purpose of multi-directional dry mist dust suppression, preventing the existing smoke and dust from being dispersed by the dry mist, and greatly improving the effect of dry mist dust suppression.

Description

Technical Field

[0001] The present invention belongs to the technical field of dry fog dust suppression, and specifically relates to a large-scale dry fog dust suppression device and a method for using the same. Background Art

[0002] Dry fog dust suppression technology has been widely used in mines, power plants, ports, garbage disposal stations and other places. Dry fog dust suppression technology captures dust through "clouded" water mist, allowing the water mist to combine with dust particles in the air to form agglomerates of dust and water mist, which settle under the action of gravity, achieving dust suppression at the source. It can effectively solve the problem of dealing with unorganized dust emissions in locally closed / semi-closed states.

[0003] In the dry mist dust suppression equipment in the existing technology, the spray head can only spray at a specified position, which limits its working range and has a poor dust suppression effect. The dust reduction process for smoke and dust is often relatively simple, and spray dust reduction treatment is only performed in the same direction. Part of the smoke and dust is easily dispersed by the dry mist and spread around, causing secondary pollution to the environment. However, when suppressing dust on materials in a conveying state, there is also the problem of smoke and dust being dispersed by the dry mist. There are also blind spots for dust suppression, which makes the dust suppression effect poor and limits the scope of use of dry mist dust suppression. Summary of the Invention

[0004] In order to overcome the above-mentioned defects, the present invention provides a large-scale dry fog dust suppression device and a method of using the same, which solves the problem that the dust reduction process for smoke and dust is often relatively simple in form, and only spray dust reduction treatment is performed in the same direction. Part of the smoke and dust is easily dispersed by the dry fog and spreads around, causing secondary pollution to the environment. However, when dust suppression is performed on materials in a conveying state, the smoke and dust are also dispersed by the dry fog. There is also the problem of dust suppression blind spots, which makes the dust suppression effect poor.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a large-scale dry fog dust suppression device, comprising a dry fog dust suppression box, the bottom of the dry fog dust suppression box is fixedly connected to a support frame, the bottom of the support frame is fixedly connected to three cross beams, the top positions of the support frame corresponding to the three cross beams are all clamped with electric hydraulic rods, the bottom end of the electric hydraulic rod is fixedly connected to an adjustment component, the two sides of the adjustment component are respectively connected to dust suppression components, the opposite surfaces of the two dust suppression components are overlapped, and the two dust suppression components are arranged on the same cross beam, the side wall of the dust suppression component is clamped with a spray component, the end of the spray component away from the dust suppression component is connected to a drive component, and the top of the drive component is connected to the bottom of the dry fog dust suppression box.

[0006] As a further solution of the present invention: observation windows are provided on both sides of the dry mist dust suppression box, the front and rear sides of the dry mist dust suppression box are respectively connected to filling valves, and a mounting assembly is fixedly connected to the dry mist dust suppression box.

[0007] As a further solution of the present invention: the mounting assembly includes a bracket, the bracket is fixed on the dry mist dust suppression box, a slide is fixed on the top of the bracket, the slide is T-shaped, and a number of mounting holes are opened on both sides of the top of the bracket.

[0008] As a further solution of the present invention: the adjustment assembly includes a connecting plate and two sliding rods, and sliding sleeves are fixed on the front and rear sides of the connecting plate. The sliding sleeves are arranged outside the sliding rod, the top end of the sliding rod is fixed to the top inside the support frame, and the bottom end of the sliding rod is fixedly connected to the top of the beam.

[0009] As a further solution of the present invention: pull rods are hinged on both sides of the sliding sleeve through pins, and one end of the pull rod away from the connecting plate is hinged to the top of the dust suppression assembly through a pin.

[0010] As a further solution of the present invention: the dust suppression assembly includes a dust suppression cover, the dust suppression cover is hinged to one side of the beam through a pin shaft, a plurality of exhaust holes are opened at the bottom of the dust suppression cover, and the dust suppression cover is U-shaped.

[0011] As a further solution of the present invention: a fixing ring is clamped at the bottom of the dust suppression cover, an exhaust fan is arranged inside the fixing ring, and a light row is arranged at the top of the dust suppression cover.

[0012] As a further solution of the present invention: the spray assembly includes a guide pipe, the top of the guide pipe is connected to the bottom end of the drive assembly, two groups of branch pipes are provided on the guide pipe, and the number of branch pipes in each group is two, and the two opposite branch pipes are connected to the same guide box, and the guide box is clamped on the side wall of the dust suppression assembly.

[0013] As a further solution of the present invention: the driving assembly includes a gas-liquid mixing pump, which is installed at the bottom of the dry fog dust suppression box. The bottom of the gas-liquid mixing pump is connected to a shaped hose, and the bottom end of the shaped hose is connected to the guide pipe. Six groups of nozzles are provided on the two guide boxes, and a number of nozzles are provided on the nozzles.

[0014] A method for using a large-scale dry fog dust suppression device comprises the following steps:

[0015] S1. When performing dry mist dust suppression, dust suppression liquid is injected into the dry mist dust suppression box through the filling valve to control the operation of the electric hydraulic rod. The electric hydraulic rod contracts and drives the connecting plate to move upward, and the connecting plate drives the two sliding sleeves to move upward. During the upward movement of the two sliding sleeves, the pull rods can be pulled to cause angular deflection, so that the two opposing pull rods can pull the dust suppression cover to rotate around the pin shaft at the end of the pull rod until the side walls of the two dust suppression covers are in a relatively horizontal state. Turning on the light row can achieve the purpose of illuminating the dust suppression area;

[0016] S2. The gas-liquid mixing pump works and mixes the dust suppression liquid with the gas. The gas-liquid mixture is then injected into the guide pipe through the shaped hose. Since the shaped hose can be freely bent and shaped, the normal transportation of the gas-liquid mixture is ensured. The guide pipe guides the gas-liquid mixture into the branch pipe and the guide box. At this time, the nozzle in the dust suppression hood faces downward, so that the nozzle can spray dry mist for dust suppression.

[0017] S3. During the dry mist dust suppression process, the exhaust fan is started. The exhaust fan can absorb part of the dry mist and discharge it to one side of the dust suppression hood. In conjunction with the nozzle spraying downward, the range of dry mist dust suppression is greatly improved. Since the dry mist sprayed by the nozzle has a certain flow speed, it can attract the external air containing smoke and dust to enter the dust suppression hood through the exhaust hole, thereby achieving the purpose of multi-directional dry mist dust suppression.

[0018] S4. When adjusting the form of dry mist dust suppression, control the extension of the electric hydraulic rod so that it drives the two sliding sleeves to move downward through the connecting plate. During the downward movement of the sliding sleeves, multiple pull rods can be pushed, and the pull rods push the two dust suppression hoods to rotate relative to each other, so that the two dust suppression hoods are close to each other until they touch. At this time, the two dust suppression hoods are combined into a rectangular frame. When the external material conveying mechanism passes through the two dust suppression hoods, the nozzle can spray dry mist from the side of the material conveying mechanism to suppress dust. At this time, the exhaust fan works to extract the dry mist mixed with smoke and dust from the inside of the dust suppression hood to prevent the smoke remaining in the dust suppression hood from causing secondary pollution to the material on the conveying mechanism.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] In the present invention, the connecting plate is driven to move upward by contraction of the electric hydraulic rod, and the connecting plate drives the two sliding sleeves to move upward. During the upward movement of the two sliding sleeves, the pull rod can be pulled to cause angular deflection, so that the two relative pull rods can pull the dust suppression hood to rotate around the pin shaft at the end of the pull rod until the side walls of the two dust suppression hoods are in a relatively horizontal state. At this time, the nozzle in the dust suppression hood is facing downward, so that the nozzle can spray dry mist for dust suppression. During the dry mist dust suppression process, the exhaust fan is started, and the exhaust fan can inhale part of the dry mist and discharge it to one side of the dust suppression hood, and cooperate with the nozzle to spray downward, thereby greatly improving the range of dry mist dust suppression. Since the dry mist sprayed by the nozzle has a certain flow velocity, it can attract the external air containing smoke and dust into the dust suppression hood through the exhaust hole, thereby achieving the purpose of multi-directional dry mist dust suppression, preventing the existing smoke and dust from being dispersed by the dry mist, and greatly improving the effect of dry mist dust suppression.

[0021] In the present invention, by adjusting the form of dry mist dust suppression, the electric hydraulic rod is controlled to extend, so that it drives the two sliding sleeves to move downward through the connecting plate. During the downward movement of the sliding sleeve, multiple pull rods can be pushed, and the pull rods push the two dust suppression hoods to rotate relative to each other, so that the two dust suppression hoods are close to each other until they touch. At this time, the two dust suppression hoods are combined into a rectangular frame. When the external material conveying mechanism passes through the two dust suppression hoods, the nozzle can spray dry mist from the side of the material conveying mechanism to suppress dust. At this time, the exhaust fan works to extract the dry mist mixed with smoke and dust from the inside of the dust suppression hood, preventing the smoke remaining in the dust suppression hood from causing secondary pollution to the material on the conveying mechanism, and preventing the smoke and dust from being easily dispersed by the dry mist and spreading around to affect the environment. There is no dust suppression dead angle, which further improves the dry mist dust suppression effect.

[0022] In the present invention, the dust suppression liquid and the gas are mixed by the gas-liquid mixing pump, and the gas-liquid mixture is injected into the guide tube through the shaped hose. Since the shaped hose can be bent and shaped freely, the normal transportation of the gas-liquid mixture is guaranteed, and the light row can also be turned on to achieve the purpose of illuminating the dust suppression area. When the position of the dry mist dust suppression box is adjusted, the slide plate is slid into the external mounting surface. The T-shaped slide plate can support and limit the dry mist dust suppression box to prevent the dry mist dust suppression box from detaching from the mounting surface. The dry mist dust suppression box is pushed to drive the slide plate to slide freely on the mounting surface, and the bracket is positioned through the mounting hole, which facilitates the adjustment of the position of the dry mist dust suppression box to meet the needs of dust suppression work in different work locations. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the structure of the present invention when viewed from above;

[0025] Figure 3 It is a structural schematic diagram of the support frame and dust suppression assembly of the present invention;

[0026] Figure 4 It is a structural schematic diagram of the regulating assembly of the present invention;

[0027] Figure 5 It is a structural schematic diagram of the dust suppression assembly of the present invention;

[0028] Figure 6 This is a schematic diagram of the structure of the dust suppression assembly of the present invention;

[0029] In the figure: 1. Dry mist dust suppression box; 2. Support frame; 3. Electric hydraulic rod; 4. Crossbeam; 5. Adjustment assembly; 501. Connecting plate; 502. Sliding sleeve; 503. Sliding rod; 504. Pull rod; 6. Dust suppression assembly; 601. Dust suppression hood; 602. Exhaust hole; 603. Fixing ring; 604. Exhaust fan; 605. Light row; 7. Spray assembly; 701. Guide pipe; 702. Branch pipe; 703. Guide box; 704. Nozzle; 705. Nozzle; 8. Drive assembly; 801. Gas-liquid mixing pump; 802. Molded hose; 9. Installation assembly; 901. Bracket; 902. Slide plate; 903. Installation hole; 10. Observation window; 11. Filling valve. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] See also Figure 1-6 , the present invention provides a technical solution of a large-scale dry fog dust suppression device and its use method: Example 1

[0032] according to Figure 1 、 Figure 4 、 Figure 5 and Figure 6 As shown, a large-scale dry fog dust suppression device includes a dry fog dust suppression box 1, the bottom of the dry fog dust suppression box 1 is fixedly connected to a support frame 2, the bottom of the support frame 2 is fixedly connected to three cross beams 4, the positions of the top of the support frame 2 corresponding to the three cross beams 4 are clamped with electric hydraulic rods 3, the bottom end of the electric hydraulic rod 3 is fixedly connected to an adjustment component 5, the adjustment component 5 includes a connecting plate 501 and two sliding rods 503, the front and rear sides of the connecting plate 501 are fixed with sliding sleeves 502, the sliding sleeves 502 are arranged outside the sliding rod 503, the top of the sliding rod 503 is fixed to the top of the support frame 2, and the bottom end of the sliding rod 503 is fixedly connected to the top of the cross beam 4, through the mutual cooperation between the sliding rod 503 and the sliding sleeve 502, the sliding rod 503 can limit the sliding sleeve 502, thereby improving the deflection stability of the dust suppression hood 601 driven by the pull rod 504.

[0033] Pull rods 504 are hinged on both sides of the sliding sleeve 502 through pins, and one end of the pull rod 504 away from the connecting plate 501 is hinged to the top of the dust suppression component 6 through a pin.

[0034] Dust suppression components 6 are respectively connected to both sides of the adjustment component 5, and the opposite surfaces of the two dust suppression components 6 are overlapped, and the two dust suppression components 6 are arranged on the same beam 4. The dust suppression component 6 includes a dust suppression cover 601, and the dust suppression cover 601 is hinged to one side of the beam 4 through a pin shaft. Several exhaust holes 602 are opened at the bottom of the dust suppression cover 601, and the dust suppression cover 601 is U-shaped. The two dust suppression covers 601 are close to each other until they touch. At this time, the two dust suppression covers 601 are combined into a rectangular frame. When the external material conveying mechanism passes through the two dust suppression covers 601, the nozzle 705 can spray dry mist from the side of the material conveying mechanism to suppress dust. In conjunction with the use of the exhaust fan 604, the dry mist mixed with smoke and dust is extracted from the inside of the dust suppression cover 601 to prevent the smoke remaining in the dust suppression cover 601 from causing secondary pollution to the material on the conveying mechanism.

[0035] A fixing ring 603 is clamped at the bottom of the dust suppression hood 601, and an exhaust fan 604 is provided inside the fixing ring 603. A light row 605 is provided at the top of the dust suppression hood 601. Through the mutual cooperation between the dust suppression hood 601 and the exhaust fan 604, the nozzle 705 in the dust suppression hood 601 is facing downward, so that the nozzle 705 can spray dry mist for dust suppression. During the process of dry mist dust suppression, the exhaust fan 604 is started, and the exhaust fan 604 can inhale part of the dry mist and discharge it to one side of the dust suppression hood 601, cooperating with the nozzle 705 to spray downward, thereby greatly improving the range of dry mist dust suppression.

[0036] Through the mutual cooperation between the exhaust fan 604 and the exhaust hole 602, the dry mist sprayed out by the nozzle 705 has a certain flow speed, which can attract the air containing smoke and dust from the outside into the dust suppression hood 601 through the exhaust hole 602, thereby achieving the purpose of multi-directional dry mist dust suppression and improving the dust suppression effect.

[0037] A spray assembly 7 is clamped on the side wall of the dust suppression assembly 6. The spray assembly 7 includes a guide pipe 701. The top of the guide pipe 701 is connected to the bottom end of the drive assembly 8. Two groups of branch pipes 702 are provided on the guide pipe 701, and the number of branch pipes in each group 702 is two. The two opposite branch pipes 702 are connected to the same guide box 703, and the guide box 703 is clamped on the side wall of the dust suppression assembly 6.

[0038] One end of the spray assembly 7 away from the dust suppression assembly 6 is connected to the driving assembly 8 , and the top of the driving assembly 8 is connected to the bottom of the dry mist dust suppression box 1 . Example 2

[0039] Based on the first embodiment, Figure 2 、 Figure 3 and Figure 5 As shown, observation windows 10 are provided on both sides of the dry mist dust suppression box 1 , the front and rear sides of the dry mist dust suppression box 1 are connected to filling valves 11 respectively, and a mounting assembly 9 is fixedly connected to the dry mist dust suppression box 1 .

[0040] The mounting assembly 9 includes a bracket 901, which is fixed on the dry mist dust suppression box 1. A slide 902 is fixed on the top of the bracket 901. The slide 902 is T-shaped. Several mounting holes 903 are provided on both sides of the top of the bracket 901. The slide 902 is slid into the external mounting surface. The T-shaped slide 902 can support and limit the dry mist dust suppression box 1 to prevent the dry mist dust suppression box 1 from detaching from the mounting surface. The dry mist dust suppression box 1 is pushed to drive the slide 902 to slide freely on the mounting surface. The bracket 901 is then positioned through the mounting hole 903 to facilitate adjustment of the position of the dry mist dust suppression box 1 to meet the needs of dust suppression work in different workplaces.

[0041] The driving assembly 8 includes a gas-liquid mixing pump 801, which is installed at the bottom of the dry mist dust suppression box 1. The bottom of the gas-liquid mixing pump 801 is connected to a shaped hose 802, and the gas-liquid mixture is injected into the guide pipe 701 through the shaped hose 802. Since the shaped hose 802 can be bent freely and shaped, the normal transportation of the gas-liquid mixture is guaranteed.

[0042] The bottom end of the shaping hose 802 is connected to the guide pipe 701 . The two guide boxes 703 are provided with six groups of nozzles 704 , and the nozzles 704 are provided with a plurality of nozzles 705 . Example 3

[0043] A method for using a large-scale dry fog dust suppression device comprises the following steps:

[0044] S1. When performing dry mist dust suppression, dust suppression liquid is injected into the dry mist dust suppression box 1 through the filling valve 11 to control the operation of the electric hydraulic rod 3. The electric hydraulic rod 3 contracts and drives the connecting plate 501 to move upward, and the connecting plate 501 drives the two sliding sleeves 502 to move upward. During the upward movement of the two sliding sleeves 502, the pull rods 504 can be pulled to deflect at an angle, so that the two opposing pull rods 504 can pull the dust suppression cover 601 to rotate around the pin at the end of the pull rod 504 until the side walls of the two dust suppression covers 601 are in a relatively horizontal state. Turning on the light row 605 can achieve the purpose of illuminating the dust suppression area.

[0045] S2, the gas-liquid mixing pump 801 works and mixes the dust suppression liquid with the gas, and the gas-liquid mixture is injected into the guide pipe 701 through the shaping hose 802. Since the shaping hose 802 can be freely bent and shaped, the normal transportation of the gas-liquid mixture is ensured. The guide pipe 701 guides the gas-liquid mixture into the branch pipe 702 and the guide box 703. At this time, the nozzle 705 in the dust suppression hood 601 is facing downward, so that the nozzle 705 can spray dry mist for dust suppression;

[0046] S3. During the dry mist dust suppression process, the exhaust fan 604 is started. The exhaust fan 604 can suck in some dry mist and discharge it to one side of the dust suppression hood 601. In conjunction with the nozzle 705 spraying downward, the range of dry mist dust suppression is greatly improved. Since the dry mist sprayed by the nozzle 705 has a certain flow speed, it can attract the external air containing smoke and dust to enter the dust suppression hood 601 through the exhaust hole 602, thereby achieving the purpose of multi-directional dry mist dust suppression.

[0047] S4. When adjusting the form of dry mist dust suppression, control the electric hydraulic rod 3 to extend so that it drives the two sliding sleeves 502 to move downward through the connecting plate 501. During the downward movement of the sliding sleeve 502, it can push multiple pull rods 504, and the pull rods 504 push the two dust suppression covers 601 to rotate relative to each other, so that the two dust suppression covers 601 are close to each other until they touch. At this time, the two dust suppression covers 601 are combined into a rectangular frame. When the external material conveying mechanism passes through the two dust suppression covers 601, the nozzle 705 can spray dry mist from the side of the material conveying mechanism to suppress dust. At this time, the exhaust fan 604 works to extract the dry mist mixed with smoke and dust from the inside of the dust suppression cover 601 to prevent the smoke remaining in the dust suppression cover 601 from causing secondary pollution to the material on the conveying mechanism.

[0048] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0049] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0050] In the present invention, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0051] In the present invention, unless otherwise clearly specified and limited, a first feature "above" or "below" a second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the descriptions with reference to the terms "one scheme", "some schemes", "examples", "specific examples", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the scheme or example are included in at least one scheme or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same scheme or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more schemes or examples.

Claims

1. A large-scale dry mist dust suppression device, comprising a dry mist dust suppression box (1), characterized in that: The bottom of the dry mist dust suppression box (1) is fixedly connected to a support frame (2), the bottom of the support frame (2) is fixedly connected to three cross beams (4), the top of the support frame (2) corresponding to the three cross beams (4) are all clamped with electric hydraulic rods (3), the bottom end of the electric hydraulic rod (3) is fixedly connected to an adjustment component (5), the two sides of the adjustment component (5) are respectively connected to dust suppression components (6), the opposite surfaces of the two dust suppression components (6) are overlapped, and the two dust suppression components (6) are arranged on the same cross beam (4), the side wall of the dust suppression component (6) is clamped with a spray component (7), the end of the spray component (7) away from the dust suppression component (6) is connected to a drive component (8), and the top of the drive component (8) is connected to the bottom of the dry mist dust suppression box (1); Observation windows (10) are provided on both sides of the dry mist dust suppression box (1), and the front and rear sides of the dry mist dust suppression box (1) are respectively connected to filling valves (11), and a mounting assembly (9) is fixedly connected to the dry mist dust suppression box (1).

2. A large-scale dry mist dust suppression device according to claim 1, characterized in that: The mounting assembly (9) comprises a bracket (901), the bracket (901) being fixed on the dry mist dust suppression box (1), a slide plate (902) being fixed on the top of the bracket (901), the slide plate (902) being T-shaped, and a plurality of mounting holes (903) being provided on both sides of the top of the bracket (901).

3. The large-scale dry mist dust suppression device according to claim 1, characterized in that: The adjustment assembly (5) includes a connecting plate (501) and two sliding rods (503), wherein sliding sleeves (502) are fixed to the front and rear sides of the connecting plate (501), and the sliding sleeves (502) are arranged outside the sliding rods (503). The top end of the sliding rods (503) is fixed to the top of the support frame (2), and the bottom end of the sliding rods (503) is fixedly connected to the top of the crossbeam (4).

4. A large-scale dry mist dust suppression device according to claim 3, characterized in that: Both sides of the sliding sleeve (502) are hinged with pull rods (504) via pins, and one end of the pull rod (504) away from the connecting plate (501) is hinged to the top of the dust suppression assembly (6) via a pin.

5. The large-scale dry mist dust suppression device according to claim 4, characterized in that: The dust suppression assembly (6) comprises a dust suppression cover (601), the dust suppression cover (601) is hinged to one side of the crossbeam (4) via a pin shaft, a plurality of exhaust holes (602) are provided at the bottom of the dust suppression cover (601), and the dust suppression cover (601) is U-shaped.

6. A large-scale dry mist dust suppression device according to claim 5, characterized in that: A fixing ring (603) is clamped at the bottom of the dust suppression cover (601), an exhaust fan (604) is provided in the fixing ring (603), and a light row (605) is provided at the top of the dust suppression cover (601).

7. A large-scale dry mist dust suppression device according to claim 6, characterized in that: The spray assembly (7) comprises a guide pipe (701), the top of the guide pipe (701) is connected to the bottom of the drive assembly (8), the guide pipe (701) is provided with two groups of branch pipes (702), and each group of branch pipes (702) has two branches, and the two opposite branch pipes (702) are connected to the same guide box (703), and the guide box (703) is clamped on the side wall of the dust suppression assembly (6).

8. The large-scale dry mist dust suppression device according to claim 7, characterized in that: The driving assembly (8) includes a gas-liquid mixing pump (801), which is installed at the bottom of the dry mist dust suppression box (1). The bottom of the gas-liquid mixing pump (801) is connected to a shaped hose (802), and the bottom end of the shaped hose (802) is connected to a guide pipe (701). Six groups of nozzles (704) are provided on two guide boxes (703), and a plurality of nozzles (705) are provided on the nozzles (704).

9. A method for using a large-scale dry mist dust suppression device, according to the large-scale dry mist dust suppression device of claim 8, characterized in that: The following steps are involved: S1. When performing dry mist dust suppression, dust suppression liquid is injected into the dry mist dust suppression box (1) through the filling valve (11), and the electric hydraulic rod (3) is controlled to work. The electric hydraulic rod (3) contracts to drive the connecting plate (501) to move upward, and the connecting plate (501) drives the two sliding sleeves (502) to move upward. During the upward movement of the two sliding sleeves (502), the pull rod (504) can be pulled to deflect an angle, so that the two opposite pull rods (504) can pull the dust suppression cover (601) to rotate around the pin at the end of the pull rod (504) until the side walls of the two dust suppression covers (601) are in a relatively horizontal state. Turning on the light row (605) can achieve the purpose of illuminating the dust suppression area; S2, the gas-liquid mixing pump (801) works and mixes the dust suppression liquid with the gas, and the gas-liquid mixture is injected into the guide pipe (701) through the shaped hose (802). Since the shaped hose (802) can be freely bent and shaped, the normal transportation of the gas-liquid mixture is ensured. The guide pipe (701) guides the gas-liquid mixture into the branch pipe (702) and the guide box (703). At this time, the nozzle (705) in the dust suppression cover (601) is facing downward, so that the nozzle (705) can spray dry mist for dust suppression; S3. During the dry mist dust suppression process, the exhaust fan (604) is started. The exhaust fan (604) can absorb part of the dry mist and discharge it to one side of the dust suppression hood (601). The exhaust fan (705) cooperates with the nozzle (705) to spray downward, thereby greatly improving the range of dry mist dust suppression. Since the dry mist sprayed by the nozzle (705) has a certain flow speed, it can attract the air containing smoke and dust from the outside to enter the dust suppression hood (601) through the exhaust hole (602), thereby achieving the purpose of multi-directional dry mist dust suppression; S4. When adjusting the form of dry mist dust suppression, the electric hydraulic rod (3) is controlled to extend so that it drives the two sliding sleeves (502) to move downward through the connecting plate (501). During the downward movement of the sliding sleeve (502), multiple pull rods (504) can be pushed. The pull rods (504) push the two dust suppression hoods (601) to rotate relative to each other, so that the two dust suppression hoods (601) are close to each other until they touch. At this time, the two dust suppression hoods (601) are combined into a rectangular frame. When the external material conveying mechanism passes through the two dust suppression hoods (601), the nozzle (705) can spray dry mist from the side of the material conveying mechanism to suppress dust. At this time, the exhaust fan (604) works to extract the dry mist mixed with smoke and dust from the inside of the dust suppression hood (601) to prevent the smoke remaining in the dust suppression hood (601) from causing secondary pollution to the material on the conveying mechanism.

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