A ventilation and dust removal device for underground coal mines

Abstract

The utility model discloses a ventilation and dust removal device for underground coal mines, comprising a ventilation box body which is fixedly installed underground in the coal mine and can allow airflow to circulate, a trapezoidal groove filter plate is movably connected to the inner side of the input end of the ventilation box body, a plurality of air outlets are fixed to the output end of the ventilation box body, the trapezoidal groove filter plate can accelerate the centralized transportation of airflow and dust, a guide component and a dust removal device are fixed in sequence in the ventilation box body, the guide component can assist the airflow to enter the ventilation box body, and the dust removal device can further remove dust from the airflow, the utility model can accelerate the centralized transportation of airflow and dust and achieve ventilation efficiency by setting the trapezoidal groove filter plate, and utilizes the dust removal equipment to remove dust from the airflow to prevent environmental pollution.

Description

Technical field:

[0001] The utility model relates to the field of ventilation and dust removal devices, in particular to a ventilation and dust removal device used in underground coal mines. Background technology:

[0002] Spontaneous combustion of coal caused by water flooding in the goaf during excavation is one of the main disasters restricting the safe mining of coal seams. There are many reasons for its occurrence. For example, water flooding in the goaf will cause water to react with some chemical substances in the coal, generating heat and causing nature. Or, water flooding will increase the oxygen supply in the goaf, promote the oxidation reaction of the coal, generate heat, and cause spontaneous combustion of the coal. The main reasons are that the heat cannot be dissipated and the oxygen is concentrated, that is, the ventilation effect is poor and cannot be quickly and concentrated, thus creating the risk of spontaneous combustion of coal. Utility model content:

[0003] Therefore, the utility model provides a ventilation and dust removal device for underground coal mines to overcome the problems of the prior art.

[0004] The utility model is implemented by the following technical solutions:

[0005] A ventilation and dust removal device for use underground in coal mines, comprising a ventilation box body fixedly installed underground in the coal mine and capable of airflow circulation, a trapezoidal groove filter plate movably connected to the inner side of the input end of the ventilation box body, a plurality of air outlet holes fixed to the output end of the ventilation box body, the trapezoidal groove filter plate can accelerate the centralized transportation of airflow and dust, a guide assembly and a dust removal device are fixed in sequence in the ventilation box body, the guide assembly can assist the airflow to enter the ventilation box body, and the dust removal device can further remove dust from the airflow.

[0006] Preferably, positioning components are fixedly connected to both sides of the trapezoidal groove filter plate, respectively, and the positioning components can drive the trapezoidal groove filter plate to vibrate inside the input end side of the ventilation box.

[0007] Preferably, the positioning assembly includes two positioning plates, and the two positioning plates are respectively fixed on both sides of the trapezoidal groove filter plate, the positioning plates pass through the through hole and are slidably connected to the through hole, the through hole is fixed on the side wall of the ventilation box body, the vibrator is fixed on one side of the positioning plate, and multiple springs are fixed between the other side and the inner side of the through hole.

[0008] Preferably, the guide assembly includes a plurality of guide fan groups arranged in a row, and each guide fan group includes a plurality of guide fans, and the plurality of guide fans are fixedly arranged on the bracket in sequence from top to bottom, and the guide fans are arranged opposite to the trapezoidal groove filter plate.

[0009] Preferably, the dust removal device includes a plurality of spray heads, and the plurality of spray heads are fixed on the top of the ventilation box body and arranged near the output end of the ventilation box body. The plurality of spray heads are fixedly connected to the water tank through a conduit, and the water tank is fixed on the top surface of the ventilation box body.

[0010] Preferably, a guide block is fixed on the bottom surface of the ventilation box body, and the guide block is arranged at the side end of the guide assembly and at the lower end of the sprinkler head. The top surface of the guide block is arranged with an inclined surface, and the inclined direction is from the input end to the output end of the ventilation box body.

[0011] Preferably, a drain pipe is fixed on the output side of the ventilation box, and a valve is fixed on the drain pipe.

[0012] Preferably, a filter is fixedly installed in the air outlet.

[0013] The utility model has the advantages that the arrangement of the trapezoidal groove filter plate can speed up the centralized transportation of airflow and dust, achieve ventilation efficiency, and utilize dust removal equipment to achieve dust removal of the airflow to prevent environmental pollution. Description of the drawings:

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the test cross-sectional structure of the utility model.

[0018] In the figure: ventilation box body 1, air outlet 2, trapezoidal groove filter plate 3, vibrator 4, spring 5, guide fan 6, sprinkler head 7, water tank 8, guide block 9, sewage pipe 10. Specific implementation method:

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] like Figure 1 , Figure 2 , Figure 3 As shown, a ventilation and dust removal device for underground coal mines comprises a ventilation box 1 which is fixedly installed underground in the coal mine and can allow airflow to circulate, a trapezoidal groove filter plate 3 is movably connected to the input end side of the ventilation box 1, a plurality of air outlet holes 2 are fixed to the output end of the ventilation box 1, the trapezoidal groove filter plate 3 can accelerate the centralized transportation of airflow and dust, a guide component and a dust removal device are fixed in the ventilation box 1 in sequence, the guide component can assist the airflow to enter the ventilation box 1, and the dust removal device can further remove dust from the airflow.

[0021] Specifically, an air flow channel is provided inside the ventilation box 1 for guiding the air flow to pass through. The trapezoidal groove filter plate 3 is installed on the input end side of the ventilation box to increase the contact area between the air flow and the trapezoidal groove filter plate 3, thereby improving the dust capture efficiency in the air flow, and can accelerate the centralized transportation of the air flow and dust, so that more dust can be captured by the filter plate. At the same time, the guide component can also assist the air flow to enter the ventilation box 1, and then use the dust removal device to achieve further filtering and dust removal effects, ensuring that the air flow does not affect the environment after discharge.

[0022] The two sides of the trapezoidal groove filter plate 3 are respectively fixedly connected with positioning components, and the positioning components can drive the trapezoidal groove filter plate 3 to vibrate inside the input end side of the ventilation box 1;

[0023] The positioning assembly includes two positioning plates, and the two positioning plates are respectively fixed on both sides of the trapezoidal groove filter plate 3, the positioning plates pass through the through hole and are slidably connected with the through hole, the through hole is fixed on the side wall of the ventilation box body 1, a vibrator 4 is fixed on one side of the positioning plate, and a plurality of springs 5 ​​are fixed between the other side and the inner side of the through hole;

[0024] Specifically, by utilizing the interaction between the vibrator 4 and the spring 5, the trapezoidal groove filter plate 3 can be vibrated inside the input end side of the ventilation box 1, so that the coal dust adhering to the trapezoidal groove filter plate 3 falls off, thereby ensuring the filtering effect of the trapezoidal groove filter plate 3.

[0025] The air guide assembly includes a plurality of air guide fan groups arranged in a row, and each air guide fan group includes a plurality of air guide fans 6, and the plurality of air guide fans 6 are fixedly arranged on the bracket in sequence from top to bottom, and the air guide fans 6 are arranged directly opposite to the trapezoidal groove filter plate 3;

[0026] Specifically, the airflow guiding effect generated by the rotation of the guide fan group makes the airflow more orderly when passing through the ventilation box 1, reduces the turbulence of the airflow, and thus improves the efficiency of the entire ventilation system;

[0027] After being accelerated by the guide fan 6, the airflow impacts the trapezoidal groove filter plate 3 in a more concentrated manner, so that the dust particles are more easily captured on the trapezoidal groove filter plate 3, thereby improving the dust removal effect.

[0028] The dust removal device includes a plurality of spray heads 7, and the plurality of spray heads 7 are fixed on the top of the ventilation box 1 and are arranged near the output end of the ventilation box 1. The plurality of spray heads 7 are fixedly connected to a water tank 8 through a conduit, and the water tank 8 is fixed on the top surface of the ventilation box 1.

[0029] A guide block 9 is fixed on the inner bottom surface of the ventilation box 1, and the guide block 9 is arranged at the side end of the guide assembly and at the lower end of the sprinkler head 7. The top surface of the guide block 9 is arranged with an inclined surface, and the inclined direction is arranged from the input end to the output end of the ventilation box 1;

[0030] A drain pipe 10 is fixed on the output side of the ventilation box 1, and a valve is fixed on the drain pipe 10;

[0031] Specifically, the water in the water tank 8 is transported to the spray head 7 through the conduit, and the spray head 7 sprays the water into fine water mist or water droplets, so that when the airflow passes through the ventilation box 1, it meets the water mist sprayed by the spray head 7, and the dust particles are adsorbed and settled by the water droplets, thereby achieving dust removal;

[0032] The dust particles are adsorbed by the water droplets and settle to the guide block 9, and the inclined surface of the guide block 9 is used to achieve centralized collection.

[0033] After being adsorbed by the water droplets, the dust particles are collected by the guide block 9 and finally discharged through the sewage pipe 10 for subsequent reprocessing or recycling.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A ventilation and dust removal device for underground coal mines, comprising a ventilation box body fixedly installed underground in the coal mine and capable of airflow, characterized in that: A trapezoidal groove filter plate is movably connected to the input end side of the ventilation box body, and a plurality of air outlets are fixed to the output end of the ventilation box body. The trapezoidal groove filter plate can accelerate the centralized transportation of airflow and dust. A flow guide component and a dust removal device are fixed in sequence in the ventilation box body. The flow guide component can assist the airflow to enter the ventilation box body, and the dust removal device can further remove dust from the airflow.

2. A ventilation and dust removal device for underground coal mines according to claim 1, characterized in that: Positioning components are fixedly connected to both sides of the trapezoidal groove filter plate, respectively, and the positioning components can drive the trapezoidal groove filter plate to vibrate inside the input end side of the ventilation box.

3. A ventilation and dust removal device for underground coal mines according to claim 2, characterized in that: The positioning assembly includes two positioning plates, and the two positioning plates are respectively fixed on both sides of the trapezoidal groove filter plate. The positioning plates pass through the through hole and are slidably connected to the through hole. The through hole is fixed on the side wall of the ventilation box body. The vibrator is fixed on one side of the positioning plate, and multiple springs are fixed between the other side and the inner side of the through hole.

4. A ventilation and dust removal device for underground coal mines according to claim 3, characterized in that: The air guide assembly includes a plurality of air guide fan groups arranged in a row, and each air guide fan group includes a plurality of air guide fans, and the plurality of air guide fans are fixedly arranged on the bracket in sequence from top to bottom, and the air guide fans are arranged opposite to the trapezoidal groove filter plate.

5. A ventilation and dust removal device for underground coal mines according to claim 4, characterized in that: The dust removal device includes a plurality of spray heads, and the plurality of spray heads are fixed on the top of the ventilation box body and arranged close to the output end of the ventilation box body. The plurality of spray heads are fixedly connected to the water tank through a conduit, and the water tank is fixed on the top surface of the ventilation box body.

6. A ventilation and dust removal device for underground coal mines according to claim 5, characterized in that: A guide block is fixed on the bottom surface of the ventilation box body, and the guide block is arranged at the side end of the guide assembly and at the lower end of the sprinkler head. The top surface of the guide block is arranged with an inclined surface, and the inclined direction is arranged from the input end to the output end of the ventilation box body.

7. A ventilation and dust removal device for underground coal mines according to claim 6, characterized in that: A sewage pipe is fixed on the output side of the ventilation box, and a valve is fixed on the sewage pipe.

8. A ventilation and dust removal device for underground coal mines according to any one of claims 1 to 7, characterized in that: A filter is fixedly installed in the air outlet.

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