Dust fall device for driving working face

Abstract

The utility model belongs to the technical field of mine dust fall, and particularly relates to a driving face dust fall device which comprises a movable frame, a water supply assembly, a controller and a support are installed on the movable frame, a water outlet of the water supply assembly is communicated with a spraying assembly, and the spraying assembly is installed on the inner side of an air duct. The variable-taper flow guide assembly and the fan are mounted on the air duct on the front side and the rear side of the spraying assembly respectively, and the air duct is mounted on the support. The variable-taper flow guide assembly is driven by an electric push rod, dynamic adjustment of the taper is achieved through a connecting rod mechanism, and therefore the angle and the coverage range of sprayed water mist are accurately controlled, the dust falling efficiency is improved, the spraying angle is flexibly adjusted, and the variable-taper flow guide assembly adapts to changes of different tunneling depths and working environments.

Description

Technical Field

[0001] The utility model belongs to the technical field of mine dust reduction, and in particular relates to a dust reduction device for an excavation working face. Background Art

[0002] Dust pollution has always been a major problem plaguing the industry in mining, tunneling, and other engineering operations. The dust generated during excavation not only severely affects visibility, increases the difficulty and risk of operations, but also poses a long-term threat to workers' respiratory health, easily leading to occupational diseases such as pneumoconiosis. Traditional dust reduction methods rely primarily on fixed spray devices. Multiple spray heads are installed at the work site to spray water mist into the air to wet dust particles and cause them to settle. However, this method presents the following problems:

[0003] Fixed spray systems have a fixed spray angle range and cannot be flexibly adjusted to the actual conditions of the tunneling face. In situations such as varying tunneling depths, irregular working surface shapes, or shifting wind directions, a fixed spray angle range often fails to cover the entire working area, resulting in limited dust reduction effectiveness. Utility Model Content

[0004] In response to the above problems, the purpose of this utility model is to provide a dust reduction device for the excavation working face to solve the problem that traditional dust reduction methods mostly use fixed-angle spray devices, which have limited dust reduction effects and are difficult to adapt to changes in different excavation depths and working environments.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a dust reduction device for an excavation working face, comprising a mobile frame, a water supply assembly, a controller and a bracket installed on the mobile frame, the water outlet of the water supply assembly is connected to the spray assembly, the spray assembly is installed on the inner side of the wind tube, and the wind tubes on the front and rear sides of the spray assembly are respectively installed with a variable taper guide assembly and a fan, the wind tube is installed on the bracket, the variable taper guide assembly comprises an electric push rod, the cylinder body of the electric push rod is installed on the wind tube, and the cylinder body and the piston rod side of the electric push rod are respectively installed with a plurality of connecting seats 1 and connecting seats 2, the connecting seat 1 and the connecting seat 2 are respectively rotatably connected to one end of the connecting rod 1 and the connecting rod 2 by a pin shaft, and the other end of the connecting rod 2 is rotatably connected to the connecting rod 1 by a pin shaft, and the outer side surface of the connecting rod 1 is installed with a guide plate, and the guide plate is an arc-shaped cone plate structure.

[0006] The beneficial effects of the utility model are as follows: the variable taper guide component is driven by an electric push rod, and the dynamic adjustment of the taper is achieved through a connecting rod mechanism, thereby accurately controlling the angle and coverage range of the sprayed water mist, thereby improving the dust reduction efficiency, realizing flexible adjustment of the spray angle, and adapting to changes in different excavation depths and working environments.

[0007] In order to avoid interference between adjacent guide plates affecting the adjustment of taper;

[0008] As a further improvement of the above technical solution: the guide plates are of elastic plate structure, and adjacent guide plates are staggered inside and outside.

[0009] The beneficial effect of this improvement is that the adjacent guide plates staggered inwards and outwards, whose motion trajectories interfere with each other, can produce elastic deformation to ensure normal taper adjustment.

[0010] In order to make multiple guide plates play an effective role in guiding the flow;

[0011] As a further improvement of the above technical solution: a plurality of guide plates arranged around the axis of the electric push rod form a conical plate structure.

[0012] The beneficial effect of this improvement is that the conical plate body composed of multiple guide plates can effectively guide the sprayed water mist.

[0013] In order to ensure the stability of variable taper guide components and fan installation;

[0014] As a further improvement of the above technical solution: the wind duct includes a cylinder body, a hollow bracket is installed on the inner side of the cylinder body, and the fan and the variable taper guide assembly are installed on the hollow bracket.

[0015] The beneficial effect of this improvement is that the hollow bracket can provide stable installation support for the fan and the variable taper guide component while ensuring the normal flow of gas.

[0016] In order to ensure the uniform distribution of mist droplets in the sprayed water mist;

[0017] As a further improvement of the above technical solution: the spray assembly includes an annular tube, the axis of the annular tube is collinear with the axis of the cylinder and the electric push rod, and multiple spray heads are installed on the side of the annular tube facing the axis, and the multiple spray heads are arranged at equal intervals around the axis of the annular tube.

[0018] The beneficial effect of this improvement is that the water sprayed by the multiple sprinkler heads evenly arranged on the annular tube can ensure the uniform distribution of the mist droplets in the sprayed water mist.

[0019] To provide a stable water supply to the spray assembly;

[0020] As a further improvement of the above technical solution: the water supply assembly includes a water tank, the bottom of the water tank is connected to the water inlet of the water pump through a pipe, the water outlet of the water pump is connected to one end of the water inlet joint through a water supply pipe, and the other end of the water inlet joint is connected to the annular pipe.

[0021] The beneficial effect of this improvement is that the water pump can stably transport the water in the water tank to the spray assembly through the pipeline.

[0022] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of the utility model Figure One ;

[0024] Figure 2 This is a schematic diagram of the structure of the utility model Figure Two ;

[0025] Figure 3 This is a schematic diagram of the structure of the blower and spray assembly of the utility model;

[0026] Figure 4 This is a schematic structural diagram of the variable taper guide assembly in the present utility model;

[0027] In the figure: 1. Mobile frame; 2. Water supply assembly; 21. Water tank; 22. Water pump; 23. Water supply pipe; 3. Controller; 4. Spray assembly; 41. Ring pipe; 42. Spray head; 43. Water inlet joint; 5. Air duct; 51. Cylinder; 52. Hollow bracket; 6. Bracket; 7. Fan; 8. Variable taper guide assembly; 81. Electric push rod; 82. Connecting seat 1; 83. Connecting rod 1; 84. Connecting rod 2; 85. Guide plate; 86. Connecting seat 2. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the scope of protection of the present invention.

[0029] Example 1:

[0030] like Figure 1-4 shows: a dust suppression device for an excavation working face, comprising a mobile frame 1, on which a water supply component 2, a controller 3 and a bracket 6 are installed, the water outlet of the water supply component 2 is connected to a spray component 4, the spray component 4 is installed on the inner side of a wind tube 5, and variable taper guide components 8 and fans 7 are respectively installed on the wind tubes 5 on the front and rear sides of the spray component 4, the wind tubes 5 are installed on the bracket 6, the variable taper guide components 8 include an electric push rod 81, the cylinder body of the electric push rod 81 is installed on the wind tube 5, and the sides of the cylinder body and the piston rod of the electric push rod 81 are respectively installed with a plurality of connecting seats 1 82 and connecting seats 2 86, the connecting seats 1 82 and connecting seats 2 86 is respectively connected to one end of the connecting rod 1 83 and the connecting rod 2 84 by a pin shaft, and the other end of the connecting rod 2 84 is connected to the connecting rod 1 83 by a pin shaft. The outer side of the connecting rod 1 83 is installed with a guide plate 85. The guide plate 85 is an arc-shaped cone plate structure. The variable taper guide component 8 is driven by an electric push rod, and the dynamic adjustment of the taper is achieved through the connecting rod mechanism, so as to accurately control the angle and coverage of the sprayed water mist, thereby improving the dust reduction efficiency, realizing flexible adjustment of the spray angle, and adapting to changes in different excavation depths and working environments. The guide plate 85 is a plate structure with elasticity. The adjacent guide plates 85 are staggered inside and outside, and the motion trajectory is generated. The interfering adjacent inner and outer staggered guide plates 85 can produce elastic deformation to ensure normal taper adjustment. A plurality of guide plates 85 arranged around the axis of the electric push rod 81 form a conical plate structure. The conical plate body composed of multiple guide plates 85 can effectively guide the sprayed water mist. The wind tube 5 includes a cylinder 51, and a hollow bracket 52 is installed on the inner side of the cylinder 51. The fan 7 and the variable taper guide component 8 are installed on the hollow bracket 52. The hollow bracket 52 can provide stable installation support for the fan 7 and the variable taper guide component 8 while ensuring the normal flow of gas. The spray component 4 includes an annular tube 41. The axis of the annular tube 41 is aligned with the cylinder. 51. The axes of the electric push rod 81 are collinear, and a plurality of spray heads 42 are installed on the side of the annular tube 41 facing the axis. The plurality of spray heads 42 are equidistantly spaced around the axis of the annular tube 41. The water sprayed by the plurality of spray heads 42 evenly arranged on the annular tube 41 can ensure the uniformity of the distribution of mist droplets in the sprayed water mist. The water supply component 2 includes a water tank 21. The bottom of the water tank 21 is connected to the water inlet of the water pump 22 through a pipe. The water outlet of the water pump 22 is connected to one end of the water inlet joint 43 through the water supply pipe 23. The other end of the water inlet joint 43 is connected to the annular tube 41. The water pump 22 can stably transport the water in the water tank 21 to the spray component 4 through the pipe.

[0031] The working principle of this technical solution is as follows: when spraying dust reduction treatment, the mobile frame 1 is pushed to move the device to a suitable position, and the water pump 22 and the fan 7 are started by the controller 3. When the water pump 22 is running, the water in the water tank 21 is sucked and sent into the spray assembly 4 through the water supply pipe 23. The water flows evenly in the annular pipe 41 and is sprayed out from the multiple spray heads 42. When the fan 7 is running, it delivers wind force, so that the water is atomized and sprayed into the air under the drive of the wind to achieve dust reduction treatment; when it is necessary to adjust the angle range of the sprayed water mist, the controller 3 controls the electric push rod 81 to retract and retract, and the piston rod of the electric push rod 81 drives the connecting seat 2 86 to move, and then drives one end of the connecting rod 2 84 to move. The connecting rod 2 84 drives the connecting rod 1 83 to rotate with the pin shaft on the connecting seat 1 82 as support, and then adjusts the angle between the guide plate 85 and the axis of the electric push rod 81, thereby changing the taper of the conical surface formed by the outer side surfaces of the multiple connecting seats 1 82, thereby guiding and adjusting the angle range of the sprayed water mist.

[0032] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements that are inherent to such process, method, article or apparatus.

[0033] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. The above is only a preferred implementation method of the present invention. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the present invention, they can make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the scope of protection of the present invention.

Claims

1. A dust suppression device for a tunneling working face, characterized by: The invention comprises a mobile frame (1), wherein a water supply assembly (2), a controller (3) and a bracket (6) are installed on the mobile frame (1), a water outlet of the water supply assembly (2) is connected to a spray assembly (4), the spray assembly (4) is installed on the inner side of a wind tube (5), and a variable taper guide assembly (8) and a fan (7) are respectively installed on the wind tubes (5) on the front and rear sides of the spray assembly (4), the wind tube (5) is installed on the bracket (6), and the variable taper guide assembly (8) includes an electric push rod (81), and the electric push rod (81) The cylinder body is installed on the wind tube (5), and the sides of the cylinder body and the piston rod of the electric push rod (81) are respectively installed with a plurality of connecting seats 1 (82) and connecting seats 2 (86), and the connecting seats 1 (82) and 2 (86) are respectively connected to one end of the connecting rod 1 (83) and the connecting rod 2 (84) through a pin shaft, and the other end of the connecting rod 2 (84) is connected to the connecting rod 1 (83) through a pin shaft. The outer side surface of the connecting rod 1 (83) is installed with a guide plate (85), and the guide plate (85) is an arc-shaped cone plate structure.

2. The excavation working face dust suppression device according to claim 1, characterized in that: The guide plates (85) are of elastic plate structure, and adjacent guide plates (85) are arranged in an inner and outer staggered manner.

3. The dust suppression device for a tunneling working face according to claim 1, characterized in that: A plurality of guide plates (85) arranged around the axis of the electric push rod (81) form a conical plate structure.

4. The dust suppression device for a tunneling working face according to claim 1, characterized in that: The wind tube (5) comprises a cylinder (51), a hollow bracket (52) is installed on the inner side of the cylinder (51), and the fan (7) and the variable taper guide assembly (8) are installed on the hollow bracket (52).

5. The dust suppression device for tunneling working face according to claim 1, characterized in that: The spray assembly (4) comprises an annular tube (41), the axis of the annular tube (41) being collinear with the axis of the cylinder (51) and the electric push rod (81), and a plurality of spray heads (42) being installed on one side of the annular tube (41) facing the axis, and the plurality of spray heads (42) being arranged at equal intervals around the axis of the annular tube (41).

6. The dust suppression device for a tunneling working face according to claim 1, characterized in that: The water supply assembly (2) comprises a water tank (21), the bottom of the water tank (21) is connected to the water inlet of a water pump (22) through a pipeline, the water outlet of the water pump (22) is connected to one end of a water inlet joint (43) through a water supply pipe (23), and the other end of the water inlet joint (43) is connected to the annular pipe (41).

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