Micro-fog dust suppression device applied to comprehensive dust treatment of belt unloading trolley

Abstract

The utility model relates to the technical field of dust suppression devices, and provides a micro-fog dust suppression device applied to comprehensive treatment of dust of a belt unloading trolley, which comprises a first micro-fog nozzle and a second micro-fog nozzle, the first micro-fog nozzle is arranged on a sealing cover and is positioned above a head wheel, the outlet end of the first micro-fog nozzle faces right downwards, and the second micro-fog nozzle is arranged on the sealing cover and is positioned above the head wheel. The axes of the first micro-mist nozzles coincide with the tangent line of the blanking side of the head wheel, and all the first micro-mist nozzles are arranged in the length direction of the head wheel. The second micro-mist nozzles are arranged on the sealing cover and located on the outer side of the first micro-mist nozzles, the outlet ends of the second micro-mist nozzles face the right lower portion, and all the second micro-mist nozzles are arranged in the length direction of the head wheel. By means of the technical scheme, the problems that in the prior art, materials fall down from a conveying belt at the head wheel, generated dust overflows along a sealing cover, environment pollution is caused, the post working environment is affected, and the physical and psychological health of post workers is harmed are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of dust suppression devices, and in particular to a micro-mist dust suppression device used for comprehensive dust control of a belt unloading trolley. Background Art

[0002] The belt unloading trolley is a type of unloading device. It has the performance of unloading at any point in the horizontal section of the belt conveyor, unloading at multiple points, unloading at fixed points, and unloading at one or both sides. It is widely used in mining, electric power, metallurgy, coal, building materials and other industries. It is convenient for overall material distribution and can maximize the use of the site to pile up materials or distribute materials. When the belt unloading trolley is working, the material falls from the conveyor belt at the head wheel, causing disturbed airflow inside the chute. Small particles of material are lifted up by the airflow, generating dust. The dust will overflow along the sealing cover, causing environmental pollution, affecting the working environment of the post, and causing harm to the physical and mental health of the workers. Utility Model Content

[0003] The utility model proposes a micro-mist dust suppression device for comprehensive dust control of a belt unloading trolley, which solves the problem in the related technology that when materials fall from the conveyor belt at the head wheel, the generated dust will overflow along the sealing cover, causing environmental pollution, affecting the working environment of the post, and causing harm to the physical and mental health of the workers on the post.

[0004] The technical solution of the utility model is as follows: a micro-mist dust suppression device for comprehensive dust control of a belt unloading trolley, which is used to be arranged on a sealing cover at the end of the belt unloading trolley, and the sealing cover is located above the head wheel of the belt unloading trolley. The key lies in: comprising:

[0005] A first micro mist nozzle, which is arranged on the sealing cover and located above the head wheel, with the outlet end of the first micro mist nozzle facing directly downward, the axis of the first micro mist nozzle coincides with the tangent of the blanking side of the head wheel, the number of the first micro mist nozzles is at least two, and all of the first micro mist nozzles are arranged along the length direction of the head wheel;

[0006] A second micro mist nozzle, the second micro mist nozzle is arranged on the sealing cover and is located outside the first micro mist nozzle, the outlet end of the second micro mist nozzle faces directly downward, the number of the second micro mist nozzles is at least two, and all the second micro mist nozzles are arranged along the length direction of the head wheel.

[0007] The distance between the axis of the first micro mist nozzle and the end of the sealing cover is L, and the distance between the axis of the second micro mist nozzle and the end of the sealing cover is 0.5L.

[0008] The distance between the axes of two adjacent first micro-mist nozzles is 0.5-0.7m, and the spray distance of the first micro-mist nozzle is 2-4m.

[0009] The distance between the axes of two adjacent second micro-mist nozzles is 0.5-0.7m, and the spray distance of the second micro-mist nozzle is 2-4m.

[0010] Also includes,

[0011] a first atomizing pipe, wherein the first atomizing pipe is arranged on the sealing cover, inlet ends of the first micro-mist nozzle and the second micro-mist nozzle are both connected to the first atomizing pipe, and the first atomizing pipe is provided with a water inlet and an air inlet;

[0012] The first atomizing controller has an exhaust port and a drain port, the exhaust port of the first atomizing controller is communicated with the air inlet of the first atomizing pipe, and the drain port of the first atomizing controller is communicated with the water inlet of the first atomizing pipe.

[0013] The first micro-mist nozzle is detachably connected to the first atomizing tube, and the second micro-mist nozzle is detachably connected to the first atomizing tube.

[0014] It also includes a third micro-mist nozzle, and the belt unloading trolley also includes a conveying belt, which passes around the head wheel. The third micro-mist nozzle is arranged below the conveying belt, and the outlet end of the third micro-mist nozzle faces the conveying belt below the head wheel.

[0015] It also includes a fourth micro-mist nozzle, and the belt unloading trolley also includes a slide pipe, which is arranged on the outside of the head wheel, and the fourth micro-mist nozzle is arranged on both sides and above the lower end of the slide pipe.

[0016] The distance between the axes of two adjacent fourth micro-mist nozzles located on the same side of the slide pipe is 0.25-0.35m, and the spray distance of the fourth micro-mist nozzle is 4-8m.

[0017] Also includes,

[0018] A second atomizing pipe, wherein the number of the second atomizing pipes is three and they are respectively arranged on both sides and above the slide pipe, the fourth micro-mist nozzle is arranged on the second atomizing pipe located above the fourth micro-mist nozzle, and the second atomizing pipe is provided with a water inlet and an air inlet;

[0019] The second atomizing controller has an exhaust port and a drain port, the water inlets of all the second atomizing tubes are connected to the drain port of the second atomizing controller, and the air inlets of all the second atomizing tubes are connected to the exhaust port of the second atomizing controller.

[0020] The working principle and beneficial effects of the utility model are as follows: the sealing cover is located above the head wheel of the belt unloading trolley, the first micro-mist nozzle is arranged on the sealing cover and is located above the head wheel, the outlet end of the first micro-mist nozzle faces directly downward, the axis of the first micro-mist nozzle coincides with the tangent of the blanking side of the head wheel, the number of the first micro-mist nozzles is at least two, and all the first micro-mist nozzles are arranged along the length direction of the head wheel; the second micro-mist nozzle is arranged on the sealing cover and is located outside the first micro-mist nozzle, the outlet end of the second micro-mist nozzle faces directly downward, the number of the second micro-mist nozzles is at least two, and all the second micro-mist nozzles are arranged along the length direction of the head wheel. The first and second micro-mist nozzles spray toward the material-dropping side of the head wheel below, which can produce water mist particles with a diameter of 1-10μm, effectively adsorb the dust suspended in the air, especially the respirable particles with a diameter of less than 2.5μm, and aggregate them into agglomerates, so that they settle under the action of gravity, which can inhibit the dust generated by the airflow from overflowing along the sealing cover, and achieve good dust suppression at the source of dust generation, which can avoid polluting the on-site environment, provide a better working environment, and avoid harming the physical and mental health of workers. In addition, the micro-mist dust suppression device consumes very little water, and almost does not cause changes in the moisture content of the material, which can achieve energy conservation and emission reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present utility model.

[0022] Figure 1 This is a front view of the first micro mist nozzle and the second micro mist nozzle at the sealing cover of the utility model.

[0023] Figure 2 It is a left view of the first micro mist nozzle and the second micro mist nozzle at the sealing cover of the utility model.

[0024] Figure 3 It is a top view of the first micro mist nozzle and the second micro mist nozzle at the sealing cover of the utility model.

[0025] Figure 4 It is a front view of the third micro mist nozzle and the fourth micro mist nozzle in the utility model.

[0026] Figure 5 It is a right view of the third micro mist nozzle and the fourth micro mist nozzle in the utility model.

[0027] Figure 6 This is a front view of the fourth micro-mist nozzle connected to the slide pipe in the utility model.

[0028] Figure 7 It is a right view of the fourth micro mist nozzle connected to the slide pipe in the utility model.

[0029] In the figure: 1, sealing cover, 2, head wheel, 3, first micro mist nozzle, 4, second micro mist nozzle, 5, first atomization pipe, 6, first atomization controller, 7, third micro mist nozzle, 8, fourth micro mist nozzle, 9, slide pipe, 10, second atomization pipe, 11, second atomization controller. DETAILED DESCRIPTION

[0030] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0031] In order to simplify the drawings, only the parts related to the utility model are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0032] In this article, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0033] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0034] Example, see Figure 1 , Figure 2 and Figure 3, is an embodiment of the utility model, and proposes a micro-mist dust suppression device for comprehensive dust control of a belt unloading trolley, which is used to be arranged on a sealing cover 1 at the end of the belt unloading trolley, and the sealing cover 1 is located above the head wheel 2 of the belt unloading trolley, including a first micro-mist nozzle 3 and a second micro-mist nozzle 4. The first micro-mist nozzle 3 is arranged on the sealing cover 1 and is located above the head wheel 2, and the outlet end of the first micro-mist nozzle 3 faces directly downward, and the axis of the first micro-mist nozzle 3 coincides with the tangent of the blanking side of the head wheel 2. The number of the first micro-mist nozzles 3 is at least two, and all the first micro-mist nozzles 3 are arranged along the length direction of the head wheel 2; the second micro-mist nozzle 4 is arranged on the sealing cover 1 and is located outside the first micro-mist nozzle 3, and the outlet end of the second micro-mist nozzle 4 faces directly downward, and the number of the second micro-mist nozzles 4 is at least two, and all the second micro-mist nozzles 4 are arranged along the length direction of the head wheel 2.

[0035] Furthermore, if Figure 1 As shown, the distance between the axis of the first micro mist nozzle 3 and the end of the sealing cover 1 is L, and the distance between the axis of the second micro mist nozzle 4 and the end of the sealing cover 1 is 0.5L. The first micro mist nozzle 3 cooperates with the second micro mist nozzle 4 to ensure that the space outside the head wheel 2 in the sealing cover 1 can be covered by the first micro mist nozzle 3, which can further improve the dust suppression effect.

[0036] Furthermore, the spacing between the axes of two adjacent first micro mist nozzles 3 is 0.5-0.7m and preferably 0.6m. On the premise of ensuring that the space below the first micro mist nozzle 3 in the sealing cover 1 can be covered by the first micro mist nozzle 3, the spacing between the axes of two adjacent first micro mist nozzles 3 can be increased as much as possible, and the number of first micro mist nozzles 3 can be reduced. The material drop at the sealing cover 1 is 2-2.5m, and the spray distance of the first micro mist nozzle 3 is 2-4m, ensuring that the water mist particles sprayed by the first micro mist nozzle 3 can reach the drop point, avoiding the generated dust from overflowing along the sealing cover 1.

[0037] Furthermore, the spacing between the axes of two adjacent second micro mist nozzles 4 is 0.5-0.7m and preferably 0.6m. On the premise of ensuring that the space below the second micro mist nozzle 4 in the sealing cover 1 can be covered by the second micro mist nozzle 4, the spacing between the axes of two adjacent second micro mist nozzles 4 can be increased as much as possible, and the number of second micro mist nozzles 4 can be reduced. The material drop at the sealing cover 1 is 2-2.5m, and the spray distance of the second micro mist nozzle 4 is 2-4m, ensuring that the water mist particles sprayed by the second micro mist nozzle 4 can reach the drop point, avoiding the generated dust from overflowing along the sealing cover 1.

[0038] Furthermore, if Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, it also includes a first atomizing pipe 5 and a first atomizing controller 6. The first atomizing pipe 5 is arranged on the sealing cover 1. The inlet ends of the first micro-mist nozzle 3 and the second micro-mist nozzle 4 are both connected to the first atomizing pipe 5. The first atomizing pipe 5 is provided with a water inlet and an air inlet. The first atomizing controller 6 has an exhaust port and a drain port. The exhaust port of the first atomizing controller 6 is connected to the air inlet of the first atomizing pipe 5, and the drain port of the first atomizing controller 6 is connected to the water inlet of the first atomizing pipe 5. The first micro-mist nozzle 3 and the second micro-mist nozzle 4 are both connected to the first atomizing controller 6 through the first atomizing pipe 5. By adjusting the air intake and water intake of the first atomizing pipe 5 through the first atomizing controller 6, the spray effect of the first micro-mist nozzle 3 and the second micro-mist nozzle 4 can be adjusted to better achieve the dust suppression effect.

[0039] Furthermore, the first micro mist nozzle 3 is detachably connected to the first atomizing tube 5, and the second micro mist nozzle 4 is detachably connected to the first atomizing tube 5. When problems occur with the first micro mist nozzle 3 and the second micro mist nozzle 4, only the problematic first micro mist nozzle 3 and the second micro mist nozzle 4 need to be removed and replaced with new ones, and other components without problems can continue to be used, which can save maintenance costs.

[0040] Furthermore, if Figure 4 and Figure 5 As shown, the third micro-mist nozzle 7 is also included, and the belt unloading trolley also includes a conveyor belt, which passes over the head wheel 2. The third micro-mist nozzle 7 is arranged below the conveyor belt, and the outlet end of the third micro-mist nozzle 7 faces the conveyor belt below the head wheel 2. The materials attached to the return conveyor belt are shaken off at the auxiliary funnel, which will also generate dust. The third micro-mist nozzle 7 sprays water mist particles upward toward the conveyor belt, which effectively absorbs the dust suspended at the auxiliary funnel and aggregates it into agglomerates, so that it settles under the action of gravity, which can inhibit the dust from overflowing from the auxiliary funnel, further improve the dust suppression effect, and make it easy for the sweeper to clean the residual materials on the conveyor belt.

[0041] Furthermore, if Figure 4 , Figure 5 , Figure 6 and Figure 7As shown, the belt unloading trolley also includes a fourth micro-mist nozzle 8, and the chute 9 is arranged outside the head wheel 2. The fourth micro-mist nozzle 8 is arranged on both sides and above the lower end of the chute 9. After the material on the conveyor belt falls from the outer side of the head wheel, it slides down along the chute 9. The material at the drop opening at the lower end of the chute 9 causes shearing under the head-on resistance of the air, so that the falling powder is suspended. At the same time, the compressed airflow generated by the material in the half-space will also cause a large amount of unorganized dust to be generated. The fourth micro-mist nozzle 8 sprays toward the bottom of the drop opening of the chute 9, which can produce water mist particles with a diameter of 1-10μm, effectively adsorb the dust suspended in the air, especially the respirable particles with a diameter of less than 2.5μm, and agglomerate them into agglomerates, so that they settle under the action of gravity, which can inhibit the suspension of the falling powder, and at the same time avoid the compressed airflow generated by the material in the half-space from causing a large amount of unorganized dust, and can avoid polluting the on-site environment.

[0042] Further, the spacing between the axes of two adjacent fourth micro mist nozzles 8 on the same side of the slide pipe 9 is 0.25-0.35m and preferably 0.3m. On the premise of ensuring that the space below the slide pipe 9 can be covered by the fourth micro mist nozzle 8, the spacing between the axes of two adjacent fourth micro mist nozzles 8 is increased as much as possible, and the number of fourth micro mist nozzles 8 can be reduced. The spray distance of the fourth micro mist nozzle 8 is 4-8m, ensuring that the water mist particles sprayed by the fourth micro mist nozzle 8 can reach the drop point, suppressing a large amount of unorganized dust generated by a large drop.

[0043] Furthermore, if Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, it also includes a second atomization pipe 10 and a second atomization controller 11. There are three second atomization pipes 10, which are respectively arranged on both sides and above the slide pipe 9. The fourth micro-mist nozzle 8 is arranged on the second atomization pipe 10 located above it. The second atomization pipe 10 is provided with a water inlet and an air inlet; the second atomization controller 11 has an exhaust port and a drain port. The water inlets of all second atomization pipes 10 are connected to the drain port of the second atomization controller 11, and the air inlets of all second atomization pipes 10 are connected to the exhaust port of the second atomization controller 11.

[0044] The fourth micro mist nozzle 8 is connected to the second mist controller 11 through the second mist pipe 10. The second mist controller 11 adjusts the air intake and water intake of the second mist pipe 10 to adjust the spray effect of the fourth micro mist nozzle 8 and better achieve the dust suppression effect. The three second mist pipes 10 are connected in parallel. When a problem occurs in one of the second mist pipes 10, it will not affect the normal use of other second mist pipes 10. The second mist pipe 10 is detachably connected to the slide pipe 9, which is convenient for disassembly and maintenance.

[0045] In this embodiment, the conveyor belt is transported from front to back as an example, that is, Figure 1 and Figure 4 The head wheel 2 in the sealing cover rotates clockwise. The material drop at the sealing cover 1 is 2-2.5m. A first atomizing pipe 5 is arranged on the top of the sealing cover 1. The left and right first micro-mist nozzles 3 and the left and right second micro-mist nozzles 4 in the sealing cover 1 are connected to the first atomizing pipe 5. The first atomizing pipe 5 is controlled by the first atomizing controller 6. The second micro-mist nozzle 4 is located behind the first micro-mist nozzle 3. The axis of the first micro-mist nozzle 3 is tangent to the rear side of the head wheel 2. The distance between the axis of the first micro-mist nozzle 3 and the rear end of the sealing cover 1 is L, and the distance between the axis of the second micro-mist nozzle 4 and the rear end of the sealing cover 1 is 0.5L. The spacing between the axes of two adjacent first micro-mist nozzles 3 is preferably 0.6m, and the spacing between the axes of two adjacent second micro-mist nozzles 4 is preferably 0.6m. The spray distances of the first micro-mist nozzle 3 and the second micro-mist nozzle 4 are both 2-4m, and the spray time is continuous. The spray signal is interlocked with the running signal and the material signal of the conveyor belt. The first micro mist nozzle 3 and the second micro mist nozzle 4 both spray toward the blanking side of the head wheel 2 below.

[0046] Two third micro mist nozzles 7 are arranged on the left and right below the head wheel 2. The distance between the axes of the two third micro mist nozzles 7 is 0.6m. The spray distance of the third micro mist nozzles 7 is 1-2m. The spray time is continuous. The spray signal is linked with the running signal and the material signal of the conveyor belt. The third micro mist nozzle 7 sprays water mist particles upward toward the conveyor belt.

[0047] The slide pipe 9 is tilted in the left-right direction, and the second atomizing pipe 10 is arranged on the front and rear sides and the upper side of the lower end of the slide pipe 9. Four fourth micro-mist nozzles 8 are arranged on the second atomizing pipes 10 on the front and rear sides along the left-right direction, and eight fourth micro-mist nozzles 8 are arranged on the second atomizing pipe 10 in the upper side along the front-back direction. The sixteen fourth micro-mist nozzles 8 are controlled by the second atomizing controller 11. The fourth micro-mist nozzles 8 spray water mist particles toward the bottom of the drop port of the slide pipe 9. The spray time is continuous, and the spray signal is interlocked with the running signal of the conveyor belt and the material signal. The slide pipe has a telescopic stroke of about 1m, and the dust suppression pipeline needs to consider configuring a water and gas hose of corresponding length to ensure the telescopic of the slide pipe 9.

[0048] The first micro mist nozzle 3, the second micro mist nozzle 4, the third micro mist nozzle 7 and the fourth micro mist nozzle 8 can all generate water mist particles with a diameter of 1-10 μm, which can effectively adsorb the dust suspended in the air, especially the respirable particles with a diameter of less than 2.5 μm, and agglomerate them into agglomerates, so that they settle under the action of gravity, thereby preventing the dust generated by the airflow at the sealing cover 1 from overflowing along the sealing cover 1, preventing the dust at the auxiliary funnel from overflowing, and preventing the powder falling at the chute 9 from being suspended, while avoiding the generation of a large amount of unorganized dust caused by the compressed airflow generated by the material in the semi-space.

[0049] The utility model controls the dust at the source, realizes effective dust control, achieves good dust suppression effect, can avoid polluting the on-site environment, provide a better job environment, and avoid harming the physical and mental health of workers. In addition, the micro-mist dust suppression device consumes very little water, and almost does not cause changes in the moisture content of the material, which can achieve energy conservation and emission reduction.

[0050] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A micro-mist dust suppression device for comprehensive dust control of a belt unloading trolley, which is used to be arranged on a sealing cover (1) at the end of the belt unloading trolley, wherein the sealing cover (1) is located above the head wheel (2) of the belt unloading trolley, and is characterized in that: include, A first micro mist nozzle (3), the first micro mist nozzle (3) being arranged on the sealing cover (1) and located above the head wheel (2), the outlet end of the first micro mist nozzle (3) facing directly downward, the axis of the first micro mist nozzle (3) coinciding with a tangent line of the blanking side of the head wheel (2), the number of the first micro mist nozzles (3) being at least two, and all the first micro mist nozzles (3) being arranged along the length direction of the head wheel (2); A second micro mist nozzle (4), wherein the second micro mist nozzle (4) is arranged on the sealing cover (1) and is located outside the first micro mist nozzle (3), the outlet end of the second micro mist nozzle (4) faces directly downward, the number of the second micro mist nozzles (4) is at least two, and all of the second micro mist nozzles (4) are arranged along the length direction of the head wheel (2).

2. According to claim 1, a micro-mist dust suppression device for comprehensive dust control of belt unloading trolleys is characterized by: The distance between the axis of the first micro-mist nozzle (3) and the end of the sealing cover (1) is L, and the distance between the axis of the second micro-mist nozzle (4) and the end of the sealing cover (1) is 0.5L.

3. According to claim 1, a micro-mist dust suppression device for comprehensive dust control of belt unloading trolleys is characterized by: The distance between the axes of two adjacent first micro-mist nozzles (3) is 0.5-0.7 m, and the spray distance of the first micro-mist nozzles (3) is 2-4 m.

4. According to claim 1, a micro-mist dust suppression device for comprehensive dust control of belt unloading trolleys is characterized by: The distance between the axes of two adjacent second micro-mist nozzles (4) is 0.5-0.7 m, and the spray distance of the second micro-mist nozzles (4) is 2-4 m.

5. According to claim 1, a micro-mist dust suppression device for comprehensive dust control of belt unloading trolleys is characterized by: Also includes, a first atomizing pipe (5), wherein the first atomizing pipe (5) is arranged on the sealing cover (1), the inlet ends of the first micro-mist nozzle (3) and the second micro-mist nozzle (4) are both connected to the first atomizing pipe (5), and the first atomizing pipe (5) is provided with a water inlet and an air inlet; A first atomizing controller (6), the first atomizing controller (6) having an exhaust port and a drain port, the exhaust port of the first atomizing controller (6) being in communication with the air inlet of the first atomizing pipe (5), and the drain port of the first atomizing controller (6) being in communication with the water inlet of the first atomizing pipe (5).

6. According to claim 5, a micro-mist dust suppression device for comprehensive dust control of belt unloading trolleys is characterized by: The first micro-mist nozzle (3) and the first atomizing tube (5) are detachably connected, and the second micro-mist nozzle (4) and the first atomizing tube (5) are also detachably connected.

7. According to claim 1, a micro-mist dust suppression device for comprehensive dust control of belt unloading trolleys is characterized by: The belt unloading trolley further comprises a third micro-mist nozzle (7), the belt unloading trolley further comprises a conveying belt, the conveying belt passes around the head wheel (2), the third micro-mist nozzle (7) is arranged below the conveying belt, and the outlet end of the third micro-mist nozzle (7) faces the conveying belt below the head wheel (2).

8. According to claim 1, a micro-mist dust suppression device for comprehensive dust control of belt unloading trolleys is characterized by: The belt unloading trolley further comprises a fourth micro-mist nozzle (8), and the slide pipe (9) is arranged outside the head wheel (2), and the fourth micro-mist nozzle (8) is arranged on both sides and above the lower end of the slide pipe (9).

9. The micro-mist dust suppression device for comprehensive dust control of belt unloading vehicles according to claim 8 is characterized in that: The distance between the axes of two adjacent fourth micro-mist nozzles (8) located on the same side of the slide pipe (9) is 0.25-0.35 m, and the spray distance of the fourth micro-mist nozzles (8) is 4-8 m.

10. The micro-mist dust suppression device for comprehensive dust control of belt unloading vehicles according to claim 8 is characterized in that: Also includes, Second atomizing pipes (10), the number of the second atomizing pipes (10) being three, which are respectively arranged on both sides and above the slide pipe (9), the fourth micro-mist nozzle (8) being arranged on the second atomizing pipe (10) located above the fourth micro-mist nozzle (8), and the second atomizing pipe (10) being provided with a water inlet and an air inlet; A second atomizing controller (11), wherein the second atomizing controller (11) has an exhaust port and a drain port, the water inlets of all the second atomizing tubes (10) are connected to the drain port of the second atomizing controller (11), and the air inlets of all the second atomizing tubes (10) are connected to the exhaust port of the second atomizing controller (11).

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