CN215311099U

CN215311099U - Dust falling device

Info

Publication number: CN215311099U
Application number: CN202120905548.6U
Authority: CN
Inventors: 祁正飞; 乔亮; 苏万里; 吴海军; 李鹏飞
Original assignee: CHN Energy Wuhai Energy Co Ltd
Current assignee: CHN Energy Wuhai Energy Co Ltd
Priority date: 2021-04-28
Filing date: 2021-04-28
Publication date: 2021-12-28
Anticipated expiration: 2031-04-28

Abstract

The application provides a dust falling device, which comprises a cylindrical main body, wherein two ends of the main body are used for being connected with an air duct; a nozzle disposed on the top wall of the body, an opening of the nozzle being located in the internal cavity of the body; one end of the air-water pipe is communicated with the nozzle, and the other end of the air-water pipe is communicated with a dust falling source; the water collecting tank is arranged on the bottom wall of the main body and protrudes outwards, and the water collecting tank is communicated with the inner cavity of the main body; with the outlet pipe of ponding groove intercommunication, this dust device simple structure can install on the dryer to be used for reducing the dust in the dryer.

Description

Dust falling device

Technical Field

The utility model belongs to the technical field of mine dust control, and particularly relates to a dust falling device which is particularly applied to underground operation such as coal mines.

Background

Dust (dust) refers to solid particles suspended in air. Dust is customarily given a number of names, such as dust, dirt, soot, mine dust, sand dust, powder, etc., without a distinct limitation. Productive dust is a natural enemy of human health in life and work, and is a major cause of various diseases.

In coal mine production, for example, due to geological environment and climate reasons, the air flow of the air inlet shaft is turbid, and the dust content of the air flow at the full air pressure of the local ventilator is high. The existing dust settling device has a less obvious effect and causes the exceeding of fresh air flow and dust on a working surface.

Therefore, the dust falling device is required to be invented for reducing dust in the mining air duct.

SUMMERY OF THE UTILITY MODEL

The utility model provides a dust settling device aiming at part or all of the technical problems in the prior art. The dust falling device is connected to the air duct in a communicated mode to reduce dust in the air duct, and further solves the problems that dust is diffused and accumulated on a driving working surface due to the fact that the dust exceeds the standard, the visible distance is short, and the dust suction amount of workers is large.

According to an aspect of the utility model, a wind and water linkage dust settling device is provided, which comprises:

a cylindrical main body, the axial two ends of the main body are used for being connected with the wind barrel,

a nozzle disposed on the top wall of the body, an opening of the nozzle being located in the internal cavity of the body,

an air-water pipe arranged on the main body, one end of the air-water pipe is communicated with the nozzle, the other end is used for being communicated with a dust falling source,

a convex water collecting groove arranged on the bottom wall of the main body, the water collecting groove is communicated with the inner cavity of the main body,

and the water outlet pipe is communicated with the water accumulating tank.

In one embodiment, a plurality of said nozzles are provided on the top wall of said body, said nozzles in the same radial section being in a group, the central angle of two of said nozzles in the outermost one of the group being 15-90 degrees.

In one embodiment, a plurality of groups of nozzles are arranged on the top wall of the main body, the nozzles in different groups are axially arranged at intervals, and the nozzles in different groups are distributed in a plum blossom shape.

In one embodiment, different nozzles are connected in parallel with the air-water pipe.

In one embodiment, the other end of the air water pipe is connected with a three-way joint, and the other two ends of the three-way joint are respectively connected with a water source and an air source contained in a dust falling source.

In one embodiment, an opening is provided on the bottom wall of the main body to communicate with the water collecting tank, a guide plate is fixedly provided on the wall of the main body at the opening, and a free end of the guide plate extends obliquely into an inner cavity of the water collecting tank relative to a fixed end.

In one embodiment, the bottom wall of the body is configured as an inclined surface to minimize the position of the opening.

In one embodiment, a water return pipe is arranged on the water outlet pipe in a communication mode, and the opening end of the water return pipe is higher than the end communicated with the water outlet pipe.

In one embodiment, a viewing port is provided in a side wall of the body, and a viewing door is sealingly provided at the viewing port.

In one embodiment, the viewing door is pivotally connected to the body and is snap-fit secured thereto by a latch.

Compared with the prior art, the utility model has the advantages that: can set up the dust device of this application on the dryer to be used for reducing the dust in the dryer, and then solve the tunnelling working face and cause the dust to diffuse, pile up, visual distance is short, the staff inhales the great scheduling problem of dust volume because of the dust exceeds standard.

Drawings

Preferred embodiments of the present invention will be described in detail below with reference to the attached drawing figures, wherein:

figure 1 shows a dust reducing apparatus according to one embodiment of the utility model;

FIG. 2 is a view from the A direction of FIG. 1;

FIG. 3 is a radial cross-sectional view at the sump according to one embodiment of the utility model.

In the drawings, like parts are provided with like reference numerals. The figures are not drawn to scale.

Detailed Description

In order to make the technical solutions and advantages of the present invention more apparent, exemplary embodiments of the present invention are described in further detail below with reference to the accompanying drawings. It is clear that the described embodiments are only a part of the embodiments of the utility model, and not an exhaustive list of all embodiments. And the embodiments and features of the embodiments may be combined with each other without conflict.

The embodiment of the utility model provides a dust falling device 100. As shown in fig. 1, the dust falling device 100 includes a main body 1, a nozzle 2, an air-water pipe 3, a water collecting tank 4, and a water outlet pipe 5. The main body 1 is cylindrical, for example, cylindrical, and both ends in the axial direction thereof are used for connecting an air duct (not shown). The nozzle 2 is provided on the top wall of the body 1. That is, nozzle 2 is on a side wall of body 1 that is oriented upward during use of dust suppression device 100. Meanwhile, an opening of the nozzle 2 is located in the inner cavity of the main body 1 for spraying a dust falling source into the inner cavity of the main body 1. And the air water pipe 3 is arranged on the outer wall of the main body 1 and is used for communicating an external dust falling source to the nozzle 2. That is, one end of the air and water pipe 3 is communicated with the nozzle 2, and the other end is used for being communicated with a dust falling source. The water collecting tank 4 is arranged convexly on the bottom wall (in the use, at the lower position) of the main body 1. The water accumulating tank 4 is communicated with the inner cavity of the main body 1 and is used for collecting the waste water after dust fall. The water outlet pipe 5 is communicated with the water accumulating tank 4 and is used for leading out the wastewater in the water accumulating tank 4.

In one embodiment, a plurality of nozzles 2 are provided on the top wall of the main body 1. Nozzles 2 located in the same radial section may be grouped together. The two outermost nozzles 2 of a group are located at a central angle of 15-90 degrees. For example, as shown in fig. 1, two nozzles 2 are located in the same radial section of the body 1, and the central angle formed between the two nozzles 2 is 40 degrees. This kind of setting mode can produce the water smoke on a large scale, guarantees the dust fall effect.

A plurality of groups of nozzles 2 can be arranged on the wall of the main body 1, and different groups are axially spaced to ensure the dust settling effect. Preferably, the nozzles 2 between the different groups are distributed in a quincunx pattern, as shown in fig. 2.

In one embodiment, the different nozzles 2 are in parallel communication with the storm sewer 3. This arrangement allows for easy control of the opening of the different nozzles 2, which is more cost effective. However, in order to simplify the structure and connection relationship, it is also possible to provide two nozzles 2 on the outer wall of the main body 1, the two nozzles 2 being located substantially in the same radial section, and the two nozzles 2 being connected in series with the air and water duct 3.

The other end of the blast pipe 3 is connected with a tee joint (not shown in the figure). The other two ends of the three-way joint are respectively connected with a water source and an air source contained in the dust falling source. That is, a high-speed air stream and a high-pressure water stream are simultaneously supplied to the nozzle 2 to form a finer mist through the nozzle 2. The water mist is a kind of mist mass which can float and move. The residence time of the mist cloud in the air is increased compared to conventional water sprays. Therefore, the arrangement mode is equivalent to increase of the dust fall area of water mist, and has better adsorption effect on dust, so that the best dust fall effect is achieved.

As shown in fig. 3, an opening 11 is provided on the bottom wall of the main body 1 to communicate with the water collecting tub 4. A guide plate 12 is fixedly provided on the wall of the main body 1 at the opening 11. The free end of the guide plate 12 extends obliquely relative to the fixed end into the interior of the water collection tank 4. For example, guide plates 12 are provided on both left and right ends of the water collection tub 4. The fixed ends of the two guide plates 12 are respectively fixedly connected with the wall of the main body 1, and the free ends of the two guide plates 12 oppositely extend into the inner cavity of the water collecting tank 4. The guide plate 12 plays a role in guiding the waste water to be left in the water accumulation tank 4, and avoids overlarge impact on the water accumulation tank 4 caused by overlarge water flow.

The bottom wall of the main body 1 is configured as an inclined surface so that the position at the opening 11 is lowest. In this application, because the main part 1 bit cylinder shape, then the inner wall of arcuation has played fine water conservancy diversion effect to waste water.

The water outlet pipe 5 is communicated with a water return pipe 8. The counter pipe 8 may be mounted on the outlet pipe 5, for example, by a three-way joint. And the opening end of the water return pipe 8 is higher than the communication end with the water outlet pipe 5. After dust device 100 is connected with the dryer, can add water in anti-water pipe 8 to form the water seal, thereby avoid dust device 100 to leak out through outlet pipe 5.

A stop valve 7 is provided at the most downstream end of the outlet pipe 5 for controlling the opening or closing of the outlet pipe 5.

A viewing port 13 is provided in a side wall of the main body 1. An observation door 9 is hermetically provided at the observation port 13 for observation. For example, the observation door 9 is pivoted with the main body 1 and is clamped and fixed through a bolt, and the structure is simple and the operation is convenient.

The operation of the dust falling device is described in detail below with reference to fig. 1 to 3.

First, dust falling device 100 is installed on the air duct.

Then, the water return pipe 8 is filled with water for preventing the air leakage of the water outlet pipe 5.

Then, air and water are supplied to the nozzle 2 through the air and water pipe 3, and the water is automatically atomized to perform dust fall. The atomized water flows into the water collecting tank 4.

Finally, the flap 7 can be opened to drain the water from the water reservoir 4 through the outlet pipe 5.

Wherein, at the dust fall in-process, can open observation door 9 and observe atomizing effect and nozzle 2 operating condition.

In actual construction, the monitoring data of dust falling device 100 not installed and dust falling device 100 installed are compared, and when dust falling device 100 is not installed, the dust concentration is 27.2 mg/m³And the reduction is 0.6 mg/m after installation³. From this, above-mentioned data show that the dust device of this application's dust fall effect is very good.

While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, the appended claims are intended to be construed to include preferred embodiments and all such changes and/or modifications as fall within the scope of the utility model, and all such changes and/or modifications as are made to the embodiments of the present invention are intended to be covered by the scope of the utility model.

Claims

1. A dust device, its characterized in that includes:

and the water outlet pipe is communicated with the water accumulating tank.

2. A dust reducing device according to claim 1, characterized in that a plurality of the nozzles are provided on the top wall of the body, the nozzles in the same radial cross-section being in a group, the two outermost nozzles in a group being at a central angle of 15-90 degrees.

3. The dust falling device of claim 2, wherein a plurality of groups of the nozzles are arranged on the top wall of the main body, different groups of the nozzles are axially arranged at intervals, and the nozzles of different groups are distributed in a plum blossom shape.

4. The dust settling device of claim 2, wherein different nozzles are connected in parallel with the air-water pipe.

5. The dust settling device according to any one of claims 1 to 4, wherein a tee joint is connected to the other end of the air-water pipe, and a water source and an air source contained in a dust settling source are respectively connected to the other two ends of the tee joint.

6. A dust fall device according to any one of claims 1 to 4, characterized in that an opening is provided in the bottom wall of the main body to communicate with the water collection tank, and a guide plate is fixedly provided on the wall of the main body at the opening, the free end of the guide plate extending obliquely with respect to the fixed end into the inner cavity of the water collection tank.

7. The dust reducing device of claim 6, wherein the bottom wall of the body is configured as an inclined surface to minimize the position of the opening.

8. The dust falling device according to any one of claims 1 to 4, characterized in that a water return pipe is arranged on the water outlet pipe in a communication manner, and the opening end of the water return pipe is higher than the communication end with the water outlet pipe.

9. A dust fall device according to any one of claims 1 to 4, wherein a viewing port is provided in a side wall of the main body, and a viewing door is sealingly provided at the viewing port.

10. A dust fall apparatus according to claim 9, wherein the observation door is pivotally connected to the main body and is secured thereto by a bayonet catch.