阅读说明：本技术 一种采煤机二次负压降尘装置 (Coal-winning machine secondary negative pressure dust device ) 是由 薛松 谢永存 胡靖� 于 2019-10-21 设计创作，主要内容包括：本发明涉及一种采煤机二次负压降尘装置,属于采煤机降尘设备技术领域。本发明主要解决现有降尘装置除尘效率低、安装拆卸不灵活等技术问题。本发明的技术方案是：一种采煤机二次负压降尘装置,其中：包括支架、喷筒组件和磁力吸盘；所述支架包括支架底板和支架侧板,所述支架侧板设在支架底板顶部一侧,所述喷筒组件设在支架底板上方,所述喷筒组件底部通过调节螺栓与支架底板连接,所述磁力吸盘设在支架侧板外侧并通过长螺栓与支架侧板连接；所述喷筒组件包括喷筒支架、喷筒和喷嘴。本发明具有除尘效率高、拆卸灵活方便等优点。(The invention relates to a secondary negative pressure dust falling device of a coal mining machine, and belongs to the technical field of dust falling equipment of coal mining machines. The invention mainly solves the technical problems of low dust removal efficiency, inflexible installation and disassembly and the like of the existing dust-settling device. The technical scheme of the invention is as follows: the utility model provides a coal-winning machine secondary negative pressure dust device, wherein: comprises a bracket, a spray cylinder assembly and a magnetic sucker; the support comprises a support bottom plate and a support side plate, the support side plate is arranged on one side of the top of the support bottom plate, the spray cylinder assembly is arranged above the support bottom plate, the bottom of the spray cylinder assembly is connected with the support bottom plate through an adjusting bolt, and the magnetic sucker is arranged on the outer side of the support side plate and connected with the support side plate through a long bolt; the spray cylinder assembly comprises a spray cylinder bracket, a spray cylinder and a spray nozzle. The invention has the advantages of high dust removal efficiency, flexible and convenient disassembly and the like.)

1. The utility model provides a coal-winning machine secondary negative pressure dust device which characterized in that: comprises a bracket (1), a spray cylinder assembly (3) and a magnetic sucker (2);

the support (1) comprises a support bottom plate (1-1) and a support side plate (1-2), the support side plate (1-2) is arranged on one side of the top of the support bottom plate (1-1), the spray cylinder assembly (3) is arranged above the support bottom plate (1-1), the bottom of the spray cylinder assembly (3) is connected with the support bottom plate (1-1) through an adjusting bolt (4), and the magnetic sucker (2) is arranged on the outer side of the support side plate (1-2) and is connected with the support side plate (1-2) through a long bolt (5);

the spray cylinder assembly (3) comprises a spray cylinder support, a spray cylinder (3-1) and a spray nozzle (3-2), the spray cylinder support comprises a lower bottom plate (3-3), two sides of the top surface of the front part of the lower bottom plate (3-3) are respectively provided with a side support plate (3-4), the middle of the top surface of the rear part of the lower bottom plate (3-3) is provided with a hinged support plate (3-5), and the side support plate (3-4) is provided with three groups of mounting holes (3-6) with different heights; the spraying cylinder (3-1) is arranged on the spraying cylinder bracket, the side fixing plates (3-7) are arranged at the positions of the two sides of the front cylinder wall of the spraying cylinder (3-1) corresponding to the side supporting plates (3-4), and the rotating plates (3-8) are arranged at the positions of the lower part of the bottom cylinder wall of the spraying cylinder (3-1) corresponding to the hinged supporting plates (3-5); the side fixing plates (3-7) are connected with a group of mounting holes (3-6) on the side supporting plates (3-4) through bolts, and the rotating plates (3-8) are hinged with the hinged supporting plates (3-5);

the nozzle (3-2) is arranged in the middle of the inner cavity at the rear side of the spray cylinder (3-1) through a nozzle fixing plate.

2. The secondary negative pressure dust falling device of the coal mining machine according to claim 1, characterized in that: the nozzle (3-2) comprises a nozzle shell (3-9) and guide vanes (3-10), and the guide vanes (3-10) are arranged inside the nozzle shell (3-9).

Technical Field

The invention belongs to the technical field of dust falling equipment of coal mining machines, and particularly relates to a secondary negative pressure dust falling device of a coal mining machine.

Background

The continuous improvement of the comprehensive mechanized coal mining degree of the coal mine brings great economic benefits and also causes a plurality of negative effects, wherein the biggest problem is the generation of high-concentration coal dust, the safe and efficient production of a mine is seriously influenced, and the threat to the health of underground operators is caused. According to related data, the dust settling efficiency of a common spray dust settling system is only 40% -50%, dust which is not settled is easy to scatter along with wind, the operation environment is polluted, and the existing dust settling device is inflexible to mount and dismount on a coal mining machine and consumes manpower and material resources.

Disclosure of Invention

The invention aims to overcome the defects of the prior art, provides a secondary negative pressure dust-settling device of a coal mining machine, and solves the technical problems of low dust-settling efficiency, inflexible installation and disassembly and the like of the conventional dust-settling device.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows:

the utility model provides a coal-winning machine secondary negative pressure dust device, wherein: comprises a bracket, a spray cylinder assembly and a magnetic sucker;

the support comprises a support bottom plate and a support side plate, the support side plate is arranged on one side of the top of the support bottom plate, the spray cylinder assembly is arranged above the support bottom plate, the bottom of the spray cylinder assembly is connected with the support bottom plate through an adjusting bolt, and the magnetic sucker is arranged on the outer side of the support side plate and connected with the support side plate through a long bolt;

the spray cylinder assembly comprises a spray cylinder bracket, a spray cylinder and a nozzle, wherein the spray cylinder bracket comprises a lower bottom plate, two sides of the top surface of the front part of the lower bottom plate are respectively provided with a side supporting plate, the middle of the top surface of the rear part of the lower bottom plate is provided with a hinged supporting plate, and the side supporting plates are provided with three groups of mounting holes with different heights; the spraying cylinder is arranged on the spraying cylinder bracket, side fixing plates are arranged at the positions, corresponding to the side supporting plates, of the two sides of the cylinder wall in front of the spraying cylinder, and a rotating plate is arranged at the position, corresponding to the hinged supporting plates, below the cylinder wall at the bottom of the spraying cylinder; the side fixing plate is connected with a group of mounting holes on the side supporting plate through bolts, and the rotating plate is hinged with the hinged supporting plate;

the nozzle is arranged in the middle of the inner cavity at the rear side of the spray cylinder through a nozzle fixing plate.

Further, the nozzle comprises a nozzle shell and guide vanes, and the guide vanes are arranged inside the nozzle shell.

According to the technical scheme, the secondary negative pressure dust falling device converts supplied high-pressure water into the steam fog flow barrier and the dust-containing steam flow purification system for intercepting coal dust, so that in-situ purification of dust generated during coal mining of a coal mining machine is realized, and outward diffusion of coal mining dust is reduced; the height and the horizontal direction of the injection angle are flexibly adjusted according to different heavily polluted areas of the coal dust, so that the dust falling operation is more effectively carried out; the magnetic sucker is greatly convenient for the installation and the disassembly of the secondary negative pressure dust-settling device of the coal mining machine on the coal mining machine. Compared with the prior art, the invention has the advantages of high dust removal efficiency, flexible and convenient disassembly and the like.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a perspective view of the present invention;

FIG. 3 is a cross-sectional view of the nozzle assembly of the present invention;

fig. 4 is a schematic view of a nozzle structure.

Detailed Description

The invention is further illustrated by the following figures and examples.

As shown in fig. 1 to 4, in the embodiment, a secondary negative pressure dust settling device of a coal mining machine, includes: comprises a bracket 1, a spray cylinder component 3 and a magnetic sucker 2;

the support 1 comprises a support bottom plate 1-1 and a support side plate 1-2, the support side plate 1-2 is arranged on one side of the top of the support bottom plate 1-1, the spray cylinder assembly 3 is arranged above the support bottom plate 1-1, the bottom of the spray cylinder assembly 3 is connected with the support bottom plate 1-1 through an adjusting bolt 4, and the magnetic sucker 2 is arranged on the outer side of the support side plate 1-2 and is connected with the support side plate 1-2 through a long bolt 5;

the spray cylinder assembly 3 comprises a spray cylinder support, a spray cylinder 3-1 and a spray nozzle 3-2, the spray cylinder support comprises a lower bottom plate 3-3, two sides of the top surface of the front part of the lower bottom plate 3-3 are respectively provided with a side support plate 3-4, the middle of the top surface of the rear part of the lower bottom plate 3-3 is provided with a hinged support plate 3-5, and three groups of mounting holes 3-6 with different heights are arranged on the side support plate 3-4; the spraying cylinder 3-1 is arranged on a spraying cylinder bracket, side fixing plates 3-7 are arranged at the positions, corresponding to the side supporting plates 3-4, of the two sides of the cylinder wall in front of the spraying cylinder 3-1, and rotating plates 3-8 are arranged at the positions, corresponding to the hinged supporting plates 3-5, below the cylinder wall at the bottom of the spraying cylinder 3-1; the side fixing plates 3-7 are connected with a group of mounting holes 3-6 on the side supporting plates 3-4 through bolts, and the rotating plates 3-8 are hinged with the hinged supporting plates 3-5;

the nozzle 3-2 is arranged in the middle of the inner cavity at the rear side of the spray cylinder 3-1 through a nozzle fixing plate.

Further, the nozzle 3-2 comprises a nozzle shell 3-9 and guide vanes 3-10, and the guide vanes 3-10 are arranged inside the nozzle shell 3-9.

The use process of the invention is as follows: when the device is installed, the magnetic sucker 2 is firstly controlled to operate a handle, and the secondary negative pressure dust falling device and the coal mining machine are fixed into a whole through the magnetic sucker 2;

high-pressure water flow enters a nozzle 3-2 through a pipeline, the high-pressure water flow is formed in the nozzle 3-2 by a guide vane 3-10, the high-pressure water flow is sprayed out from the nozzle 3-2 to enter a spraying barrel 3-1 after being collided with each other, the sprayed steam flow is collided with the barrel wall of the spraying barrel 3-1 to further form extremely fine steam flow, and the steam flow is sprayed out of the spraying barrel 3-1 to form a steam-mist flow barrier and a dust-containing steam flow purification system, so that the in-situ purification during coal mining of a coal mining machine is realized.

The spraying height angle and the horizontal angle of the spraying cylinder 3-1 can be adjusted according to the field working condition: different height angles of the spray cylinder 3-1 on the spray cylinder bracket are adjusted by connecting the front side fixing plate 3-7 of the spray cylinder 3-1 with different mounting holes 3-6 of the upper side supporting plate 3-4 of the spray cylinder bracket; by loosening the adjusting bolt 4 and rotating the nozzle assembly 3, the angle adjustment of the nozzle assembly 3 in the horizontal direction is completed.

When the dismounting device is used, the dismounting device can be completed by controlling the magnetic sucker 2 to operate the handle, so that the mounting and dismounting processes are convenient and fast.