CN216909725U

CN216909725U - Mine operation dust device

Info

Publication number: CN216909725U
Application number: CN202220332300.XU
Authority: CN
Inventors: 施维
Original assignee: Qingyang Lailong Calcite Mining Co ltd
Current assignee: Qingyang Lailong Calcite Mining Co ltd
Priority date: 2022-02-14
Filing date: 2022-02-14
Publication date: 2022-07-08
Anticipated expiration: 2032-02-14

Abstract

The utility model discloses a mine operation dust falling device, which comprises a dust falling box, a filter tank and a filter box arranged in the dust falling box, wherein a dust falling cavity is formed between the filter box and the dust falling box, the dust falling cavity is connected with an air inlet pipe, a first filter plate is arranged on the bottom surface of the filter box, and a spray pipe is arranged above the first filter plate; the top surface and the bottom surface of the dust falling box are respectively connected with a first Venturi tube and a second Venturi tube, a first throat tube of the first Venturi tube penetrates through the top surface of the filter box, a negative air fan is arranged at a first outlet section of the first Venturi tube, and a second throat tube of the second Venturi tube is connected to the bottom surface of the dust falling box; the second filter plate is arranged in the filter tank, the second inlet section of the second Venturi tube is connected to the filter tank below the second filter plate, the filter tank below the second filter plate is also connected with the spray pipe, and the second outlet section of the second Venturi tube is connected to the filter tank above the second filter plate.

Description

Mine operation dust device

Technical Field

The utility model relates to the technical field of dust settling devices, in particular to a mine operation dust settling device.

Background

During the operation of a coal mine, pulverized coal with small particle size can float in the air in the process of mechanical operations such as drilling, mining and the like, and the dust falling operation of the mine is very necessary because the space of a mine roadway is limited and the pulverized coal is easy to cause harm to the body of an operator after being sucked for a long time. Conventional dust device adopts the filter screen to filter the dust more, but adopts this kind of mode, because the dust enrichment is on the surface of filter screen, needs regularly clear up the filter screen, has increased mine workman's work burden.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model provides a mine operation dust fall device to solve the defects in the prior art.

A dust falling device for mine operation comprises a dust falling box, a filter tank and a filter box arranged on the top surface inside the dust falling box, wherein a dust falling cavity is formed between the outer side wall and the bottom surface of the filter box and the dust falling box, the side wall of the dust falling cavity is connected with an air inlet pipe, a first filter plate is arranged on the bottom surface of the filter box, and a spray pipe is arranged above the first filter plate; the top surface and the bottom surface of the dust falling box are respectively connected with a first Venturi tube and a second Venturi tube, a first throat tube of the first Venturi tube penetrates through the top surface of the filter box, a negative air fan is arranged at a first outlet section of the first Venturi tube, and a second throat tube of the second Venturi tube is connected to the bottom surface of the dust falling box;

the inside of filtering ponds is provided with the second filter, and the venturi's of second entry section is through first advancing water piping connection on the filtering ponds of second filter below, and the filtering ponds of second filter below still advance water piping connection through the second the spray tube, venturi's of second exit section are through going out water piping connection on the filtering ponds of second filter top.

Preferably, the filter box above the spray pipe is provided with a nano filter plate which only can pass gas but not liquid.

Preferably, the lower surface of the nano filter plate is provided with a flow guide bulge.

Preferably, a first pump is arranged on the second water inlet pipe, and a second pump is arranged on the water outlet pipe.

Preferably, the bottom surface of the dust falling box is arranged to be a funnel shape, and the second throat pipe is connected to the bottom of the funnel.

The utility model has the following advantages:

according to the device, the negative pressure formed by the first Venturi tube is used for collecting dust-containing airflow, the filter screen is cleaned in the water flow dust falling process, the dust is prevented from being accumulated on the surface of the filter screen, and meanwhile, the water flow after the dust falling of the second Venturi tube is conveyed to the filter tank to be processed and reused, so that the dust falling efficiency of mine operation is improved.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a partial schematic view of the present invention;

fig. 3 is a schematic partial cross-sectional structure of the present invention.

In the figure:

1-dust falling box; 2-a filter box; 3-a dust-reducing cavity; 4, an air inlet pipe; 5-a first venturi tube; 51-a first throat; 52-a first outlet section; 6-a second venturi tube; 61-second throat; 62-a second inlet section; 63-a second outlet section; 7-a negative air fan; 8-a filtering tank; 9-a first filter plate; 10-a spray pipe;

11-a second filter plate; 12-a first water inlet pipe; 13-a second water inlet pipe; 14-a water outlet pipe; 15-a nano-filter plate; 16-flow guiding bulges; 17-a first pump; 18-second pump.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.

As shown in fig. 1 to 3, the utility model provides a dust settling device for mine operation, which comprises a dust settling tank 1, a filter tank 8 and a filter tank 2 arranged on the top surface inside the dust settling tank 1, wherein a dust settling chamber 3 is formed between the outer side wall and the bottom surface of the filter tank 2 and the dust settling tank 1, the side wall of the dust settling chamber 3 is connected with an air inlet pipe 4, the bottom surface of the filter tank 2 is provided with a first filter plate 9, and a spray pipe 10 is arranged above the first filter plate 9; the top surface and the bottom surface of the dust falling box 1 are respectively connected with a first Venturi tube 5 and a second Venturi tube 6, a first throat 51 of the first Venturi tube 5 penetrates through the top surface of the filter box 2, a first outlet section 52 of the first Venturi tube 5 is provided with a negative air fan 7, and a second throat 61 of the second Venturi tube 6 is connected with the bottom surface of the dust falling box 1;

the inside of filtering ponds 8 is provided with second filter 11, and the second inlet section 62 of second venturi 6 is connected on the filtering ponds 8 of 11 below of second filter through first inlet tube 12, and the filtering ponds 8 of 11 below of second filter still connect through second inlet tube 13 spray tube 10, the second outlet section 63 of second venturi 6 pass through outlet pipe 14 and connect on the filtering ponds 8 of 11 tops of second filter.

A nano-filter plate 15 through which only gas but not liquid can pass is provided on the filter box 2 above the spray pipe 10. This is to prevent the negative pressure formed by the first venturi tube 5 at the first throat 51 from directly discharging the mist sprayed from the nozzle 10 and the small amount of dust passing through the first filter plate 9 and included in the mist through the first throat 51, thereby reducing the dust settling effect of the device.

The lower surface of the nano-filter plate 15 is provided with a flow guide protrusion 16. The water droplet can be gathered to water conservancy diversion arch 16, when the water droplet is big enough, can drip to the bottom of dust fall case 1 under the effect of gravity.

The second water inlet pipe 13 is provided with a first pump 17, and the water outlet pipe 14 is provided with a second pump 18.

The bottom surface of the dust falling box 1 is arranged to be funnel-shaped, and the second throat pipe 61 is connected to the bottom of the funnel, so that the flow guide of dust-containing water is facilitated.

The working principle of the device is as follows:

connect the intake pipe 4 of device on the dust cage (not shown in the figure) of mine operation device, then start negative-air fan 7, the air current that passes through in first venturi 5 can form the negative pressure in first choke 51 department, the environment of negative pressure can be formed to the inside of rose box 2 and dust settling chamber 3 promptly, make the dust in the mine pass through intake pipe 4 and get into dust settling chamber 3 and through the filtration entering rose box 2 of first filter 9, spun rivers can clear up the dust of gathering at first filter 9 lower surface in spray tube 10, the bottom that dust-laden rivers can drop to dust settling box 1. A small amount of dust-containing gas filtered by the first filter plate 9 can be attached to water drops on the flow guide protrusions 16 on the lower surface of the nano filter plate 15 and drop to the bottom of the dust settling box 1 under the action of gravity, secondary filtration of dust in a mine is completed, and the filtered gas passes through the first throat pipe 51 and flows out of the first outlet section 52 of the first Venturi pipe 5.

Under the action of the second pump 18, water flow is formed in the second venturi tube 6, the water flow at the bottom of the dustfall box 1 flows into the filter tank 8 from the second outlet section 63 through the water outlet pipe 14 along with the second throat pipe 61, and is filtered by the second filter plate 11, dust is trapped on the surface of the second filter plate 11, and the filtered liquid enters the second venturi tube 6 through the first water inlet pipe 12 to be recycled. The filtered water also provides water source for the spray pipe 10 through the second water inlet pipe 13 under the action of the first pump 17, and the water resource is recycled.

The device collects dust-containing airflow through the negative pressure formed by the first Venturi tube, cleans the filter screen in the water flow dust-settling process, avoids the accumulation of dust on the surface of the filter screen, and simultaneously conveys the water flow after the dust settling of the second Venturi tube to the filter tank for recycling after treatment, thereby improving the dust-settling efficiency of mine operation.

Although the utility model has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the utility model. Accordingly, such modifications and improvements are intended to be within the scope of the utility model as claimed.

Claims

1. The utility model provides a mine operation dust device which characterized in that: the dust falling device comprises a dust falling box (1), a filter tank (8) and a filter box (2) arranged on the inner top surface of the dust falling box (1), wherein a dust falling cavity (3) is formed between the outer side wall and the bottom surface of the filter box (2) and the dust falling box (1), the side wall of the dust falling cavity (3) is connected with an air inlet pipe (4), a first filter plate (9) is arranged on the bottom surface of the filter box (2), and a spray pipe (10) is arranged above the first filter plate (9); the top surface and the bottom surface of the dust falling box (1) are respectively connected with a first Venturi tube (5) and a second Venturi tube (6), a first throat tube (51) of the first Venturi tube (5) penetrates through the top surface of the filter box (2), a negative air fan (7) is arranged at a first outlet section (52) of the first Venturi tube (5), and a second throat tube (61) of the second Venturi tube (6) is connected to the bottom surface of the dust falling box (1);

the inside of filtering ponds (8) is provided with second filter (11), and second inlet section (62) of second venturi (6) are connected on filtering ponds (8) of second filter (11) below through first inlet tube (12), and filtering ponds (8) of second filter (11) below still are connected through second inlet tube (13) spray tube (10), and second outlet section (63) of second venturi (6) are connected on filtering ponds (8) of second filter (11) top through outlet pipe (14).

2. The mine operation dust device of claim 1, characterized in that: a nano filter plate (15) which can only pass gas but not liquid is arranged on the filter box (2) above the spray pipe (10).

3. The mine operation dust device of claim 2, characterized in that: the lower surface of the nano filter plate (15) is provided with a flow guide bulge (16).

4. The mine operation dust device of claim 1, characterized in that: the second water inlet pipe (13) is provided with a first pump (17), and the water outlet pipe (14) is provided with a second pump (18).

5. The mine operation dust device of claim 1, characterized in that: the bottom surface of the dust falling box (1) is arranged to be funnel-shaped, and the second throat pipe (61) is connected to the bottom of the funnel.