CN205778988U - A kind of PM2.5 mine dust dedusting and purifying air system - Google Patents

Abstract

The utility model discloses a PM2.5 mine dust air dust removal and purification system, which comprises a water curtain device arranged on the inner wall surface of the mine return air outlet and a water supply circulation system outside the mine return air outlet; The inner wall of one side of the tuyere is equipped with a water curtain atomizer, and the inner wall of the other side is equipped with a water collection tank. The water sprayed by the water curtain atomizer can be collected by the opposite water collection tank; A high-pressure water pump is provided, and the high-pressure water pump communicates with the water curtain atomizer through a water delivery pipeline. The utility model uses the water curtain atomization and dust suppression system installed at the air return port to spray water mist, and can also spray water mist to each other. It can not only purify the dust-containing air in the underground return air tunnel, but also can be installed at the outlet of the return air shaft ventilator. Purify the dust and eliminate the pollution of PM2.5 mine dust to the atmospheric environment, so as to achieve the best PM2.5 mine dust control effect.

Description

A PM2.5 mine dust air dust removal and purification system

technical field

The utility model relates to mine dust removal equipment.

Background technique

At present, in the ventilation system of the mine, the fresh air on the ground enters the underground, flows through the underground production working face, the return air tunnel, and is directly discharged into the ground atmosphere by the ventilator. Since the air in the mine roadway is always in a flowing state, once the PM2.5 mine dust generated in the mine dust producing area or dust raising point (i.e. the production working face) is in a free state, the diffusion speed is fast, and the conventional dust suppression method is not easy to deal with. PM2.5 mine dust belongs to floating dust (also known as respirable dust), which can be suspended in the air for a long time without settling. For a long time, a large amount of floating dust contained in the air in the return air tunnel has been directly discharged into the atmosphere through ventilation. The particle size of this PM2.5 mine dust is mostly in the range of 0.1-2.0 μm, and the dust with a particle size of 0.5 μm is the majority. In order to distinguish it from atmospheric PM2.5, this kind of mine dust that pollutes the atmosphere is collectively referred to as PM2.5 mine dust. The PM2.5 mine dust in the static state is very easy to do free movement after being disturbed by wind flow or air temperature change (it is very easy to do buoyancy movement after being affected by the increase of surface temperature), so the sky above the mining area is often gray. , is one of the pollution source factors that cause smog. At present, although conventional prevention and control measures are adopted for each dust-producing point underground, such as sprinkler-type watering and dust removal, it is extremely difficult to capture PM2.5 mine dust, and it can be said that there is nothing that can be done.

Contents of the invention

The purpose of this utility model is to design a PM2.5 mine dust air dust removal and purification system to solve the problem of air pollution in mining areas.

The technical scheme adopted in the utility model is:

A PM2.5 mine dust air dust removal and purification system, including a water curtain device arranged on the inner wall of the mine return air outlet and a water supply circulation system outside the mine return air outlet; There is a water curtain atomizer on the wall, and a water collection tank on the inner wall on the other side. The water sprayed by the water curtain atomizer can be collected by the water collection tank on the opposite side; The height position below the horizontal line; the structure of the water supply circulation system is that a high-pressure water pump is installed in the filter tank, and the high-pressure water pump communicates with the water curtain atomizer through the water supply pipeline; The water curtain of the section, the water of the water curtain absorbs dust and is collected by the opposite sump, flows naturally into the filter pool, precipitates and filters into clean water, and then enters the high-pressure water pump to form a water circulation system.

The above-mentioned water curtain device is provided with one or two sets, and when two sets are provided, the water curtain device is arranged symmetrically. When there are two sets of water curtain devices, the above-mentioned water supply circulation system can be provided with two sets, and the two sets of water supply circulation systems are arranged symmetrically, each supplying water to the nearest water curtain atomizer and communicating with its nearest water collection tank .

The above-mentioned filter pool can be provided with a three-stage filter pool, the sump is connected with the first-stage filter pool, the first-stage filter pool is connected with the second-stage filter pool and the three-stage filter pool in turn, and the high-pressure water pump is arranged in the three-stage filter pool.

The above-mentioned mine return air outlet can be an underground air return roadway, and can also be a return air return shaft ground return air outlet.

Further, in order to ensure the water quality and water level of the circulating water, a water quality monitor and a water level monitor are installed in the filter tank. When a three-stage filter pool is provided, the water quality monitor and the water level monitor are arranged in the third-stage filter pool.

The structure of the above-mentioned water curtain atomizer is to include 2-4 pipes arranged in parallel, the length of the pipes meets the side length of the cross-section of the air return port, and all the pipes are connected together with a connector at one end and connected with a blocking plate at the other end. At the same time, the connector is provided with a pipe joint connected to the water supply pipeline, and all the pipes are provided with axial slits, which can form a 2-4 layer water curtain covering the entire section of the return air outlet when water is supplied.

The above-mentioned pipes can be PVC pipes or injection molded pipes.

Compared with the prior art, the utility model has the following advantages:

The PM2.5 mine dust air dedusting and purification system of the utility model uses the water curtain atomization and dust suppression system installed at the air return port to spray water mist, and can also spray water mist to each other, which can not only purify the dust-containing air in the underground return air tunnel, Moreover, it can be installed at the outlet of the ventilator in the return air shaft to purify the dust and eliminate the pollution of PM2.5 mine dust to the atmospheric environment, so as to achieve the best PM2.5 mine dust control effect. Utilizing the water supply circulation system can save water resources.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment one;

Fig. 2 is the structural representation of the second embodiment of the utility model;

Fig. 3 is the structural representation of the utility model embodiment three;

Fig. 4 is a schematic structural view of Embodiment 4 of the present utility model;

Fig. 5 is a schematic structural view of the water curtain atomizer of the present invention.

In the figure: 1-air return port, 2-water curtain atomizer, 3-water collection tank, 4-water delivery pipeline, 5-high pressure water pump, 6-water quality monitor and water level monitor, 7-filter pool, 8-the first Secondary filter tank, 9-third-stage filter tank, 10-blocking plate, 11-pipe joint, 12-communicator, 13-pipe, 14-slit.

detailed description

Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail.

Example 1:

As shown in Figure 1, a kind of PM2.5 mine dust air dedusting purification system comprises the water curtain device that is located on the mine return air outlet 1 inner wall surface and the water supply circulation system outside the mine return air outlet; the structure of above-mentioned water curtain device is A water curtain atomizer 2 is provided on one side of the return air outlet 1, and a water collection tank 3 is provided on the other side of the inner wall. The water sprayed by the water curtain atomizer 2 can be received and collected by the opposite water collection tank 3; The above-mentioned water supply circulation system is set at the height position below the return air outlet 1 below the horizontal line of the sump 3; The atomizer 2 is connected; when the high-pressure water pump 5 is working, the water curtain atomizer 2 produces a water curtain covering the entire section of the return air outlet 1, and the water in the water curtain absorbs dust and is collected by the opposite water collection tank 3, and flows naturally into the filter pool 7 , precipitate and filter into clean water, and then enter the high-pressure water pump 5 to form a water circulation system.

Further, in order to ensure the water quality and water level of the circulating water, a water quality monitor and a water level monitor 6 are provided in the filter tank 7 .

The structure of the above-mentioned water curtain atomizer is shown in Figure 5, including 2-4 pipes 13 arranged in parallel, the length of the pipes 13 meets the side length of the section of the air return port 1, and one end of all the pipes 13 is connected together by a connector 12, and the other One end is connected together with a blocking plate 10, the connector 12 is provided with a pipe joint 11 connected with the water supply pipeline 4, and all the pipes 13 are provided with axial slits 14, which can form a cover covering the entire return air outlet 1 during water supply. Sectional 2-4 layer water curtain.

The above-mentioned pipe 13 can be a PVC pipe or an injection molding pipe.

The above-mentioned mine return air outlet 1 may be an underground return air tunnel, or a return air return shaft ground return air outlet.

Example 2:

As can be seen from Figure 2, the structure of Embodiment 2 is basically the same as that of Embodiment 1, and the same parts will not be repeated. The difference is that the filter pool in the water supply circulation system is provided with a three-stage filter pool, including a filter pool 7, a second-stage filter pool 8 and a third-stage filter pool 9, the filter pool 7 is used as the first-stage filter pool, and the sump 3 It communicates with the filter pool 7, and the filter pool 7 communicates with the second-stage filter pool 8 and the third-stage filter pool 9 in turn, and the high-pressure water pump 5 is arranged in the third-stage filter pool 9.

Example 3:

As can be seen from Figure 3, the structure of Embodiment 3 is basically the same as that of Embodiment 2, and the same parts will not be repeated. Its difference is that the water curtain device 1 is provided with two sets, and two sets of water curtain devices are arranged symmetrically.

Example 4:

As can be seen from Figure 4, the structure of Embodiment 4 is basically the same as that of Embodiment 3, and the same parts will not be repeated. The difference is that there are two sets of water supply circulation systems, and the two sets of water supply circulation systems are arranged symmetrically, each supplying water to the water curtain atomizer 2 closest to it and communicating with the water collection tank 3 closest to it; it can also be seen from Figure 4 that The filter pool in the water supply circulation system is a three-stage filter pool.

Claims (8)

1. a kind of PM2.5 mine dust air dedusting purification system is characterized in that, comprises the water curtain device that is located on the mine return air outlet inner wall surface and the water supply circulation system outside the mine return air outlet; The structure of above-mentioned water curtain device is, A water curtain atomizer is provided on the inner wall of one side of the return air outlet, and a water collection tank is provided on the inner wall of the other side. The water sprayed by the water curtain atomizer can be collected by the opposite water collection tank; The return air outlet is lower than the height below the water collection tank level; the structure of the water supply circulation system is that a high-pressure water pump is provided in the filter tank, and the high-pressure water pump communicates with the water curtain atomizer through the water delivery pipeline. 2. PM2.5 mine dust air dedusting purification system as claimed in claim 1, is characterized in that, described water curtain device is provided with two sets, and two sets of water curtain devices are arranged symmetrically. 3. PM2.5 mine dust air dedusting purification system as claimed in claim 2, is characterized in that, described water supply circulation system is provided with two sets, and two sets of water supply circulation systems are arranged symmetrically, each being the water curtain nearest to it The nebulizer is supplied with water and communicates with its nearest sump. 4. PM2.5 mine dust air dedusting purification system as claimed in claim 1, is characterized in that, is provided with the water quality monitor and the water level monitor in order to monitor circulating water water quality and water level. 5. as the arbitrary described PM2.5 mine dust air dedusting purification system of claim 1-4, it is characterized in that, described filter tank is provided with three-stage filter tank, and sump is communicated with first-level filter tank, and the second The first-stage filter pool is connected with the second-stage filter pool and the third-stage filter pool in turn, and the high-pressure water pump is arranged in the third-stage filter pool. 6. The PM2.5 mine dust air dedusting and purification system according to any one of claims 1-4, characterized in that, the mine return air outlet is an underground air return roadway or an air return shaft ground return air outlet. 7. as the arbitrary described PM2.5 mine dust air dedusting purification system of claim 1-4, it is characterized in that, the structure of described water curtain atomizer is, comprises 2-4 pipes arranged in parallel, The length of the pipe meets the side length of the cross-section of the air return port. One end of all the pipes is connected together with a connector, and the other end is connected together with a blocking plate. The connector is provided with a pipe joint connected with the water supply pipeline. Axial slits can form a 2-4-layer water curtain covering the entire section of the return air outlet when water is supplied. 8. PM2.5 mine dust air dedusting purification system as claimed in claim 7, is characterized in that, described pipe is PVC pipe or injection molding pipe.