Efficient dust suppression equipment for drag chain material distribution vehicle

Abstract

The utility model relates to the technical field of industrial dust removal equipment, and discloses efficient dust suppression equipment for a drag chain distribution vehicle, when the distribution vehicle moves to a blanking area along a guide rail, a side discharge device transports materials on the distribution vehicle to a coke blanking box in the blanking area, then double-fluid drag chain equipment is started, and the materials are discharged from the coke blanking box. The double-fluid spray head enables gas in the gas-liquid double pipe to form a local supersonic speed area at the throat part of the spray nozzle, at the moment, strong turbulence and shearing force can be caused to form a sonic boom effect, and then water molecules in the gas-liquid double pipe are torn into tiny liquid drops (generally smaller than 10 microns), so that dust in the transportation process is inhibited, and the transportation efficiency is improved. And no extra dust pollution is generated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the industrial dust removal equipment technical field, specifically, relate to a kind of high-efficiency dust suppression equipment for drag chain spreader. BACKGROUND

[0002] In coking production process, there is a serious dust pollution problem in the coke transfer link, especially when the mobile material dropping trolley is used for high-altitude unloading operation, the high fall of more than 10 meters between the material dropping port and the ground combined with the characteristics of low water content of coke (usually ≤5%) causes a large amount of dust to be generated by the violent friction of coke particles with air during free fall. According to the actual measurement, a single unloading operation can produce PM10 concentration of 200-300 mg / m 3 of dust diffusion. These submicron particles are easily dispersed into the surrounding area with air flow, which not only causes the visibility of the production area to decrease and the equipment to accumulate dust, but also has the potential risk of causing silicosis and other occupational health hazards.

[0003] The bag dust removal system commonly used in the industry has significant limitations in actual application: since the mobile material dropping trolley needs to continuously switch 12-16 unloading points along the track, the traditional fixed dust removal cover cannot realize dynamic sealing coverage, resulting in a capture efficiency of less than 40%. Although the conventional spray dust suppression technology can temporarily suppress dust, it has three technical bottlenecks: (1) the particle size of single-fluid water mist is generally greater than 200 μm, which is difficult to effectively capture respiratory dust below 10 μm; (2) excessive spraying causes the water content of coke to fluctuate by more than ±3%, which directly affects the stability of the blast furnace smelting process; (3) the risk of water pipe freezing in low temperature environment reduces the availability of the equipment. In addition, the connection problem between the mobile equipment and the fixed pipeline makes it difficult for the conventional scheme to realize continuous energy supply, and the existing drag cable method has the risk of winding and breaking, which requires maintenance every 200 moving operations.

[0004] At present, the traditional single-pipeline drag chain system can only realize the single-medium transmission of water pipes or air pipes, and cannot meet the collaborative supply requirements of 5-8 MPa high-pressure gas source and 0.5-1.2 MPa water pressure required by double-fluid dry mist dust suppression. Therefore, how to design a drag chain spreader with high dust suppression effect, low energy consumption, strong adaptability and easy maintenance to develop a new dynamic dust suppression solution has become a technical problem to be solved in the coking industry. Such a system not only can effectively reduce dust pollution and protect the environment, but also can ensure the safety of the production process, improve the health level of the working environment, and reduce the operating cost. SUMMARY

[0005] The utility model provides a kind of high-efficiency dust suppression equipment for drag chain spreader to overcome the technical problems existing in the prior art, which is suitable for the storage and pushing of coal mine materials.

[0006] The utility model discloses a technical scheme as follows to solve the above technical problems:

[0007] A kind of high-efficiency dust suppression equipment for drag chain cloth car, including: cloth car, side discharge device, car rail, double-fluid drag chain equipment and double-fluid dry fog device;The cloth car is set on car rail and can be active along the length direction of car rail, the car rail both sides are also spaced apart and are provided with the material drop area of cloth car, the side discharge device is connected cloth car and is used to transport the material of cloth car to material drop area;

[0008] The double-fluid dry fog device is connected cloth car by fluid drag chain equipment, the fluid drag chain equipment includes drag chain and gas-liquid double pipe, the gas-liquid double pipe is arranged in drag chain and moves along with the bending of drag chain.

[0009] Further, the material drop area of the cloth car is also provided with a chain rail, and the drag chain is foldably arranged on the chain rail and can be laid flat along the length direction of the chain rail.

[0010] Further, the fluid drag chain equipment is also provided with a chain collecting member, which is connected to both sides of the cloth car and arranged at the top of the chain rail, for folding and collecting the drag chain and the gas-liquid double pipe; the double-fluid dry fog device is arranged on the chain collecting member and opposite to the material drop area of the cloth car, and the double-fluid dry fog device is connected to the gas-liquid double pipe.

[0011] Further, the material drop area of the cloth car is also provided with a coke drop box, and the double-fluid drag chain equipment can transport the material of the cloth car into the coke drop box.

[0012] Further, the double-fluid dry fog device is composed of a plurality of double-fluid nozzles, the double-fluid nozzle includes a liquid channel, a gas channel and a mixing channel; the liquid channel and the gas channel are arranged inside the double-fluid nozzle; one end of the mixing channel is in communication with the liquid channel and the gas channel for mixing the gas and the liquid to form a mixed fluid.

[0013] Further, the double-fluid nozzle further includes an adjusting ring arranged in the mixing channel for adjusting the flow of the mixed fluid in the mixing channel.

[0014] Further, the liquid channel is connected to a water storage tank through a water pipe, and the gas channel is connected to a gas source through a gas pipe.

[0015] Further, the cloth car is connected to the double-fluid drag chain equipment through a connecting arm on both sides, the connecting arm is provided with a channel, and the water pipe and the gas pipe of the double-fluid dry fog device pass through the channel to connect the water storage tank and the gas source.

[0016] Further, a one-way valve is arranged at the connection between the liquid channel and the mixing channel, and a one-way valve is also arranged at the connection between the gas channel and the mixing channel.

[0017] Further, the water storage tank is provided with a booster pump, a water filter and a dry mist host on the water pipe of the double-fluid dry mist device.

[0018] Preferably, the double-fluid dry mist device is connected to a gas source through a pipeline, and the gas source comprises a gas storage tank and a gas measuring device.

[0019] Compared with the prior art, the technical scheme of the utility model has the beneficial effects that:

[0020] ①The utility model adopts a tow chain structure, so that the double-fluid dry mist device can be adjusted in position synchronously with the movement of the material car, ensuring that the entire material dropping area can be effectively covered and realizing precise dust suppression, which greatly improves the dust suppression effect.

[0021] ②The utility model adopts a double-fluid dry mist technology, and through high-speed mixing of liquid and gas, ultra-fine mist is formed in the double-fluid spray head, which can effectively capture and condense dust particles, so that they can be rapidly settled, improving the dust suppression effect and not affecting the moisture content of the coke.

[0022] ③The utility model adopts a tow chain structure, so that the gas-liquid double pipe can move flexibly along with the tow chain, keeping stable gas and water supply and ensuring that the dust suppression equipment can still work normally during the movement of the material car.

[0023] ④The tow chain structure of the utility model can be folded and laid on the chain track, and the tow chain is stored through the chain collecting component in the non-working state, improving the durability and adaptability of the equipment, reducing equipment wear and tear and lowering the maintenance cost.

[0024] ⑤The double-fluid spray head of the utility model is provided with an adjusting ring, which can accurately adjust the flow of mixed fluid, so that the amount of spray can adapt to different coke material dropping conditions, improving the adaptability of the equipment.

[0025] ⑥The utility model is provided with a one-way valve at the connection of the gas-liquid mixing channel, which can effectively prevent backflow, improving the safety and service life of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical scheme of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments, and obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without any creative effort.

[0027] Figure 1 It is a first structure schematic view of the high-efficiency dust suppression equipment.

[0028] Figure 2 It is a second structure schematic view of the high-efficiency dust suppression equipment.

[0029] Figure 3 A structural schematic diagram of a fluid drag chain device;

[0030] Figure 4 A structural schematic diagram of a side discharge device;

[0031] Figure 5 A structural schematic diagram of a double-fluid dry fog device;

[0032] Figure 6 A sectional view of a double-fluid dry fog device;

[0033] Figure 7 A front view of a double-fluid dry fog device.

[0034] wherein,

[0035] 1, a material car; 2, a side discharge device; 3, a car track; 4, a fluid drag chain device; 401, a drag chain; 402, a gas-liquid double tube; 403, a chain collecting part; 5, a double-fluid dry fog device; 501, a liquid passage; 502, a gas passage; 503, a mixing passage; 504, an adjusting ring; 6, a chain track; 7, a coke drop box; 8, a connecting arm. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the present application will be described clearly and completely below with reference to the drawings of the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the described embodiments, all other embodiments obtained by those of ordinary skill in the art without any creative effort fall within the scope of protection of the present application.

[0037] Unless otherwise defined, technical terms or scientific terms used in the present application shall be understood as having the usual meaning as understood by a person of ordinary skill in the art to which the present application pertains. The terms "first", "second" and similar terms used in the present application do not indicate any order, number or importance, but are only used to distinguish different components. The terms "include" or "contain" and similar terms mean that the components or objects before the terms cover the components or objects listed after the terms and their equivalents, and do not exclude other components or objects. The terms "connect" or "connected" and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms "up", "down", "left", "right" and the like are only used to indicate relative positional relationships, and when the absolute positions of the described objects change, the relative positional relationships may also change accordingly.

[0038] Embodiment 1

[0039] As Figures 1-7As shown, the embodiment discloses a high-efficiency dust suppression device for a material distribution vehicle, which comprises a material distribution vehicle 1, a side discharge device 2, a track 3, a double-fluid drag chain device 4 and a double-fluid dry fog device 5; the material distribution vehicle 1 is arranged on the track 3 and can move along the length direction of the track 3, and the track 3 is provided with a material dropping area for the material distribution vehicle 1 at intervals on both sides; the side discharge device 2 is connected to the material distribution vehicle 1 and used for transporting the material on the material distribution vehicle 1 to the material dropping area.

[0040] The double-fluid dry fog device 5 is connected to the material distribution vehicle 1 through the double-fluid drag chain device 4, and the double-fluid drag chain device 4 comprises a drag chain 401 and a gas-liquid double pipe 402, wherein the gas-liquid double pipe 402 is arranged in the drag chain 401 and can move flexibly along with the drag chain 401.

[0041] During preparation, the material distribution vehicle 1 is arranged on the track 3, and the track 3 is provided with a suitable material dropping area on both sides for transporting and unloading the material; the side discharge device 2 is correctly connected to the material distribution vehicle 1 and can effectively transport the material to the material dropping area; then the double-fluid dry fog device 5 and the double-fluid drag chain device 4 are installed, and the gas-liquid double pipe 402 is arranged in the drag chain 401, so that the device can move flexibly along with the bending of the drag chain 401; the drag chain 401 moves synchronously along with the moving path of the device, and the internal cable and water-gas pipeline can bend and stretch smoothly through the structural design of the drag chain 401, while the damage caused by excessive stretching or extrusion is avoided.

[0042] Then, the device is started to run, and the material distribution vehicle 1 starts to move along the length direction of the track 3 to enter the working state; during the movement of the material distribution vehicle, the side discharge device 2 transports the material on the material distribution vehicle to the material dropping area, and finally the material is transported from the material distribution vehicle 1 to the coke dropping box 7 in the material dropping area; the material is subjected to dust suppression treatment during the transportation process, so that no additional dust pollution is caused.

[0043] Subsequently, the double-fluid drag chain device 4 is started, and the double-fluid nozzle forms a local supersonic area in the throat of the nozzle, which causes strong turbulence and shear force to form a sonic boom effect, and then tears the water molecules in the gas-liquid double pipe 402 into tiny liquid droplets (usually below 10 microns), so as to suppress the dust during the transportation process.

[0044] When the device completes a working cycle, the double-fluid drag chain device 4 folds and recycles the drag chain 401 and the gas-liquid double pipe 402 through the chain folding part 403, and the chain folding part 403 ensures that the device is stored neatly through the chain track 6, so as to avoid damage to the device; at the same time, the chain folding part 403 ensures that the double-fluid dry fog device 5 always faces the material dropping area of the material distribution vehicle, so as to ensure the dust suppression effect during each operation.

[0045] If necessary, check the water tank, air supply system and booster pump, water filter and other components regularly to ensure the stability of the fluid supply system; check the cleaning and function of the spray head to ensure that the dry mist device can continuously and effectively spray; check the fluid drag chain device 4 regularly to ensure that it can move flexibly without jamming.

[0046] As a specific embodiment, the material car 1 is also provided with a chain track 6, and the drag chain 401 can be folded on the chain track 6 and laid flat along the length direction of the chain track 6; the fluid drag chain device 4 is also provided with a chain folding component 403 connected to the two sides of the material car 1 and arranged on the top of the chain track 6, for folding and recovering the drag chain 401 and the gas-liquid double pipe 402; the double-fluid dry mist device 5 is arranged on the chain folding component 403 and faces the material dropping area of the material car 1, and the double-fluid dry mist device 5 is connected with the gas-liquid double pipe 402.

[0047] Specifically, the material car 1 is positioned on the car track 3 and can move along the car track 3, then the side discharge device 2 is connected with the material car 1 to ensure that the material can be smoothly transported to the material dropping area; the chain track 6 is installed in the material dropping area, and the drag chain 401 can be laid flat along the length direction of the chain track 6 and folded for storage; the drag chain is ensured to move stably and smoothly within the predetermined movement range, and the deflection or twisting caused by external force is reduced.

[0048] The drag chain 401 can be folded and laid flat along the chain track 6, ensuring that the dry mist spraying area covers the entire material dropping area of the material car 1 and is not affected by the movement of the equipment; this equipment can be applied to different environments, especially to industrial sites with serious dust pollution such as coking plants and steel plants;

[0049] The material used to manufacture the drag chain 401 has excellent wear resistance, weather resistance and flame resistance, ensuring long-term stable use in various environments, especially in harsh industrial environments.

[0050] In summary, the working principle of the drag chain 401 is based on the comprehensive application of mechanics, material science and engineering design, aiming to provide a safe and reliable protection and management solution for pipelines that are constantly moving and changing position in mechanical equipment.

[0051] Specifically, when the material car 1 runs along the car track 3 and enters the working area, the side discharge device 2 starts to transport the material to the material dropping area; since dust is easily generated during the transportation of the material, the dry mist sprayed by the double-fluid dry mist device 5 quickly forms fine water droplets in the air, which combine with the dust particles to make them settle down, reducing air pollution; the drag chain 401 unfolds with the movement of the material car and remains laid flat on the chain track 6, ensuring that the coverage range of the dry mist spraying is maximized.

[0052] Specifically, it can also be intelligently controlled. By adjusting the fluid passage of the spray head, the amount of spray can be adjusted according to the dust concentration, ensuring that the best dust suppression effect can be achieved in different working environments and reducing resource waste.

[0053] As a specific embodiment, the blanking area of the material distribution vehicle 1 can be optionally provided with a blanking box 7, and the double-fluid drag chain device 4 can transport the material of the material distribution vehicle 1 into the blanking box 7.

[0054] Specifically, by providing the blanking box 7 at the blanking area of the material distribution vehicle 1 and combining the double-fluid drag chain device 4 to transport the material, the material management efficiency is improved, and the dust pollution is greatly reduced. The device has a reasonable structure, stable operation, good dust suppression effect, and is particularly suitable for the coking, metallurgy and other industries, which helps to improve the safety and environmental protection of the working environment.

[0055] Specifically, through the closed or semi-closed structure of the blanking box 7, the dust dispersion caused by the direct landing of the material is reduced, and the working environment is improved. The fine water mist formed by the double-fluid dry mist device 5 can efficiently adsorb dust particles, making them settle down and avoiding the spread of dust into the air, thereby reducing dust pollution.

[0056] Embodiment 2

[0057] As shown in Figures 1-7 The embodiment discloses a high-efficiency dust suppression device for a drag chain material distribution vehicle, which comprises a material distribution vehicle 1, a side discharge device 2, a track 3, a double-fluid drag chain device 4 and a double-fluid dry mist device 5. The material distribution vehicle 1 is arranged on the track 3 and can move along the length direction of the track 3. The track 3 is provided with blanking areas for the material distribution vehicle 1 at both sides thereof. The side discharge device 2 is connected to the material distribution vehicle 1 and is used for transporting the material of the material distribution vehicle 1 to the blanking areas.

[0058] The double-fluid dry mist device 5 is connected to the material distribution vehicle 1 through the double-fluid drag chain device 4. The double-fluid drag chain device 4 comprises a drag chain 401 and a gas-liquid double pipe 402. The gas-liquid double pipe 402 is arranged in the drag chain 401 and can bend and move along with the drag chain 401.

[0059] As a specific embodiment, the double-fluid dry mist device 5 is composed of a plurality of double-fluid spray heads. The double-fluid spray head comprises a liquid passage 501, a gas passage 502 and a mixing passage 503. The liquid passage 501 and the gas passage 502 are arranged in the double-fluid spray head. One end of the mixing passage 503 is in communication with the liquid passage 501 and the gas passage 502, and is used for mixing the gas and the liquid to form a mixed fluid.

[0060] The double-fluid spray head further comprises an adjusting ring 504 arranged in the mixing passage 503, which is used for adjusting the flow of the mixed fluid in the mixing passage 503.

[0061] Specifically, when the liquid and gas enter the dual-fluid nozzle, they flow into the mixing channel 503 of the nozzle through the liquid channel 501 and the gas channel 502 respectively; in the mixing channel 503, the gas and the liquid are fully mixed to form an atomized fluid; by rotating the adjusting ring 504, the flow of the fluid in the mixing channel 503 can be adjusted, and thus the atomization effect and density of the spray can be adjusted; one-way valves are arranged at the connection between the liquid channel 501 and the gas channel 502 and the mixing channel 503 respectively to prevent backflow of the liquid and the gas and ensure stable operation of the equipment; the entire equipment is automatically controlled through intelligent modules such as induction equipment, control switches and valves, and the entire process from arrival of the distribution car at the designated position to stop of the spray does not require manual intervention, thereby improving the work efficiency and reducing the operation complexity.

[0062] In dust suppression applications, due to the small size of the dry mist particles, the gas-liquid fluid formed by the dual-fluid nozzle can effectively adsorb and wrap dust particles in the air, and through the effects of collision, coagulation and gravity settling, the dust particles are agglomerated and enlarged, and finally fall to the ground or a collection device, thereby achieving efficient dust suppression.

[0063] The dual-fluid dry mist generated in this way can effectively solve the environmental protection problem of places where a large amount of dust is generated due to its excellent diffusivity and particle characteristics, and has the characteristics of simple operation, relatively low energy consumption and easy maintenance in industrial production.

[0064] As a specific embodiment, the liquid channel 501 is connected to the water storage tank through a water pipe, and the gas channel 502 is connected to the gas source through a gas pipe; the distribution car 1 is connected to the dual-fluid drag chain equipment 4 through the connecting arms 8 on both sides, and the connecting arms 8 are provided with channels, and the water pipe and the gas pipe of the dual-fluid dry mist device 5 pass through the channels to connect the water storage tank and the gas source.

[0065] Example 3

[0066] As shown in Figures 1-7 the embodiment, the embodiment discloses a high-efficiency dust suppression equipment for a drag chain distribution car, which comprises a distribution car 1, a side discharge device 2, a car track 3, a dual-fluid drag chain equipment 4 and a dual-fluid dry mist device 5; the distribution car 1 is arranged on the car track 3 and can move along the length direction of the car track 3, and the car track 3 is further provided with material dropping areas for the distribution car 1 at intervals on both sides, and the side discharge device 2 is connected to the distribution car 1 and is used for transporting the material of the distribution car 1 to the material dropping areas.

[0067] The dual-fluid dry mist device 5 is connected to the distribution car 1 through the fluid drag chain equipment 4, and the fluid drag chain equipment 4 comprises a drag chain 401 and a gas-liquid double pipe 402, and the gas-liquid double pipe 402 is arranged in the drag chain 401 and moves flexibly along with the drag chain 401.

[0068] As a specific embodiment, a one-way valve is arranged at the connection between the liquid channel 501 and the mixing channel 503, and a one-way valve is also arranged at the connection between the gas channel 502 and the mixing channel 503.

[0069] Specifically, when the liquid and the gas enter the dual-fluid nozzle, they flow into the mixing channel 503 of the nozzle through the liquid channel 501 and the gas channel 502, respectively; in the mixing channel 503, the gas and the liquid are fully mixed to form an atomized fluid; by rotating the adjusting ring 504, the flow of the fluid in the mixing channel 503 can be adjusted, and thus the atomization effect and the atomization density of the spray can be adjusted; one-way valves are arranged at the connections between the liquid channel 501 and the gas channel 502 and the mixing channel 503, respectively, to prevent backflow of the liquid and the gas and ensure stable operation of the equipment; the entire equipment is automatically controlled through intelligent modules such as induction equipment, control switches, and valves, and the entire process from arrival of the material car at the designated position to stop of the spray does not require manual intervention, which improves work efficiency and reduces operation complexity.

[0070] As a specific embodiment, a booster pump, a water filter, and a dry mist host are arranged on the water pipe of the water storage tank and the dual-fluid dry mist device 5.

[0071] Specifically, the booster pump provides high-pressure water flow to the dual-fluid dry mist device 5 through the water pipe, and the water filter filters the water source in real time to prevent impurities from entering the equipment and ensure the stability of the water flow and the dry mist effect; the water flow reaches the liquid channel 501 of the dual-fluid nozzle through the pipeline, and then the water and the gas enter the mixing channel 503 through the liquid channel 501 and the gas channel 502, respectively; in the mixing channel 503, the water and the gas are efficiently mixed to form an atomized fluid, which is sprayed through the nozzle; the booster pump and the gas tank in the equipment cooperate to ensure that water and gas can be quickly provided during peak demand, avoiding energy waste; through real-time monitoring and control of the air flow and the water flow, the equipment can adjust the water and gas supply according to actual demand, achieving optimal use of resources; due to the small size of the dry mist particles, they can effectively adsorb and wrap dust particles in the air, and through collision, condensation, and gravity settling, etc., the dust particles are agglomerated and enlarged, and finally fall to the ground or the collection device, thereby achieving efficient dust suppression.

[0072] Specifically, check valves are arranged at the connections between the water pipe and the gas pipe to ensure that the water flow and the air flow can only flow in one direction, preventing backflow and avoiding backflow of the water or the gas source to the water storage tank or the gas source, thereby improving the safety and stability of the equipment.

[0073] Obviously, the above embodiments of the present application are merely examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, it is not necessary and also impossible to exhaust all the implementation modes. Any modification, equivalent replacement and improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application claims.

Claims

1. A high-efficiency dust suppression device for a drag chain spreader, characterized in that, The utility model relates to a material distribution vehicle (1), a side discharge device (2), a track (3), a double-fluid drag chain device (4) and a double-fluid dry fog device (5), the material distribution vehicle (1) is arranged on the track (3) and can move along the length direction of the track (3), and the both sides of the track (3) are also provided with a material dropping area for the material distribution vehicle (1), and the side discharge device (2) is connected with the material distribution vehicle (1) and is used for transporting the material of the material distribution vehicle (1) to the material dropping area. The double-fluid dry fog device (5) is connected with the material distribution vehicle (1) through the double-fluid drag chain device (4), the double-fluid drag chain device (4) comprises a drag chain (401) and a gas-liquid double pipe (402), the gas-liquid double pipe (402) is arranged in the drag chain (401) and can bend and move along with the drag chain (401). The material dropping area of the material distribution vehicle (1) is also provided with a chain track (6), the drag chain (401) can be folded and arranged on the chain track (6) and can be laid flat along the length direction of the chain track (6).

2. The high efficiency dust suppression apparatus for a drag chain spreader vehicle of claim 1, wherein, The double-fluid drag chain device (4) is also provided with a chain collecting part (403), the chain collecting part (403) is connected with the both sides of the material distribution vehicle (1) and is arranged on the top of the chain track (6) and is used for folding and collecting the drag chain (401) and the gas-liquid double pipe (402), the double-fluid dry fog device (5) is arranged on the chain collecting part (403) and is opposite to the material dropping area of the material distribution vehicle (1), and the double-fluid dry fog device (5) is connected with the gas-liquid double pipe (402).

3. The dust suppression device for the drag chain spreader according to claim 2, wherein, The material dropping area of the material distribution vehicle (1) is also provided with a coke dropping box (7), and the double-fluid drag chain device (4) can transport the material of the material distribution vehicle (1) into the coke dropping box (7).

4. The dust suppression device for the drag chain spreader according to claim 1, wherein, The double-fluid dry fog device (5) is composed of a plurality of double-fluid nozzles, the double-fluid nozzle comprises a liquid channel (501), a gas channel (502) and a mixing channel (503), the liquid channel (501) and the gas channel (502) are arranged in the double-fluid nozzle, one end of the mixing channel (503) is communicated with the liquid channel (501) and the gas channel (502) and is used for mixing the gas and the liquid to form a mixed fluid.

5. The dust suppression system for the drag chain spreader vehicle of claim 1, wherein, The double-fluid nozzle also comprises an adjusting ring (504), the adjusting ring (504) is arranged in the mixing channel (503) and is used for adjusting the flow of the mixed fluid in the mixing channel (503).

6. The dust suppression device for the drag chain spreader according to claim 5, characterized in that, The liquid channel (501) is communicated with a water storage tank through a water pipe, and the gas channel (502) is communicated with a gas source through a gas pipe.

7. The dust suppression device for the drag chain spreader according to claim 5, wherein, The both sides of the material distribution vehicle (1) are connected with the double-fluid drag chain device (4) through a connecting arm (8), the connecting arm (8) is provided with a channel, and the water pipe and the gas pipe of the double-fluid dry fog device (5) pass through the channel to connect the water storage tank and the gas source.

8. The high efficiency dust suppression apparatus for a drag chain spreader vehicle of claim 7, wherein, The liquid channel (501) and the mixing channel (503) are provided with a one-way valve, and the gas channel (502) and the mixing channel (503) are also provided with a one-way valve.

9. The dust suppression system for the drag chain spreader vehicle of claim 5, wherein, The water storage tank and the water pipe of the double-fluid dry fog device (5) are provided with a booster pump, a water filter and a dry fog host.

10. The high efficiency dust suppression apparatus for a drag chain spreader vehicle of claim 7, wherein, ​

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