A mine ventilation and dust removal device

Abstract

The present invention discloses a mine ventilation and dust removal device, which can effectively improve the dust removal and filtration capacity in the mine. First, primary filtration is carried out on large particles and most dust particles, and then further filtration is achieved by the action of spraying and the filtration mesh, while improving the filtration effect, avoiding the problem of excessive filtration load caused by directly carrying out spraying and filtration by the filtration mesh. By controlling the operation of the control pipe assembly, the filter cartridge assembly can filter and remove dust from the air flow input by the control pipe group, and the control pipe group can also be used to clean the inside of the filter cartridge assembly, improving the convenience and reliability of control; the controller controls the actions of each control valve and the cleaning control valve, and the cycle switching between the filtration process of the filter cartridge assembly and the cleaning process of the inside of the filter cartridge can be realized by using the controller, which is simple and convenient.

Description

Technical Field

[0001] The present invention specifically relates to a mine ventilation and dust removal device, which relates to the field of mine auxiliary equipment. Background Art

[0002] At present, for mines, mine ventilation and dust removal are one of the commonly used equipment. During operation, due to a large amount of dust in mines, especially in coal mines, the load on the dust removal equipment in coal mine shafts is relatively large. For the ventilation areas in coal mine shafts where there are more dust particles, the currently common method is to use spraying and other methods for dust removal. This dust removal method will generate a large amount of waste water in situations with a large load and a large number of dust particles. Moreover, due to the large load of spray dust removal and the large amount of water required during spraying, a large amount of waste water is generated, and it is rather troublesome to treat this waste water. In addition, for areas with a large load and a large number of dust particles, it is difficult to effectively remove the particles in the air flow only by spraying, resulting in poor dust removal effect. When these dusts are discharged or circulated and ventilated, the environment in the mine will deteriorate, affecting the ventilation and dust removal effect. Summary of the Invention

[0003] Therefore, in order to solve the above deficiencies, the present invention provides a mine ventilation and dust removal device herein.

[0004] The present invention is implemented as follows. A mine ventilation and dust removal device is constructed, which includes a primary net filter mechanism, a secondary spray mechanism, and a ventilation pump group. Among them, the ventilation pump group is arranged at the end of the primary net filter mechanism and / or between the primary net filter mechanism and the secondary spray mechanism. The primary net filter mechanism includes a control pipe group and a filter cylinder assembly, and the control pipe group is connected to the filter cylinder assembly. It is characterized in that the filter cylinder assembly can perform filtration and dust removal treatment on the air flow input by the control pipe group, and the control pipe group can perform cleaning treatment on the inside of the filter cylinder assembly. The secondary spray mechanism can perform secondary filtration and spray treatment on the air flow filtered by the primary net filter mechanism. The output end of the secondary spray mechanism is connected to the outside of the well or the place to be ventilated inside the well, and the input end of the primary net filter mechanism is connected to the place to be dust-removed inside the well.

[0005] Further, as a preference, the secondary spray mechanism includes a spray dust removal box, a connecting pipe, an air outlet pipe, a waste liquid collection cover, a spray assembly and a filter mesh. Among them, the middle and lower part of the spray dust removal box is connected to the output end of the control pipe group through the connecting pipe. The upper part of the spray dust removal box is communicated with an air outlet pipe for outputting air flow. The bottom of the spray dust removal box is communicated with a waste liquid collection cover with a conical structure whose lower cross-sectional area is small and upper cross-sectional area is large. The spray assembly is arranged at the top in the spray dust removal box. The filter mesh is arranged below the spray assembly and above the connecting pipe in the spray dust removal box. The filter mesh includes at least one layer of filter screen and at least one layer of filter membrane. The filter screen is located below the filter membrane, and the mesh holes of the upper-layer filter screen are smaller than those of the lower-layer filter screen, and the membrane holes of the upper-layer filter membrane are smaller than those of the lower-layer filter membrane.

[0006] Further, as a preference, a circulating water treatment filter is arranged between the lower end of the waste liquid collection cover and the spray assembly to realize the recycling of the spray water. The spray dust removal box includes a lower annular flange, an upper sealing cover and a middle box body. The lower side of the lower annular flange is integrally formed with the waste liquid collection cover. The upper side of the lower annular flange is hermetically connected to the middle box body. The upper end of the middle box body is hermetically and detachably connected to the upper sealing cover.

[0007] Further, as a preference, a plurality of air outlet interfaces are arranged at intervals in the upper part of the spray dust removal box, and each air outlet interface is connected to the air outlet pipe. The spray assembly includes spray branch pipes, a main pipe and a booster atomizer. Among them, the main pipe is fixedly installed on one side of the upper end of the spray dust removal box. A plurality of spray joints are arranged at intervals in an array on the main pipe. A booster atomizer is connected between the spray joint and the main pipe. The end of the spray joint is connected to the spray branch pipe. The spray branch pipe extends into the spray dust removal box, and the plurality of spray branch pipes are arranged horizontally at intervals.

[0008] Further, as a preference, a flow equalizing disk is arranged in the spray dust removal box below the spray branch pipes and above the topmost filter screen. A plurality of flow equalizing mesh holes are arranged at intervals in an array on the flow equalizing disk. The spray nozzles of the spray branch pipes are correspondingly arranged above each flow equalizing mesh hole.

[0009] Further, as a preference, the primary network filtering mechanism includes an air inlet pipe, an air outlet pipe, an air inlet connecting pipe, a tee inlet branch pipe, a tee outlet branch pipe, and a supercharger. One side of the middle part of the air inlet pipe is connected to the tee inlet branch pipe through the air inlet connecting pipe. The tee inlet branch pipe is also connected to the air inlet side of the filter cartridge assembly. The tee outlet branch pipe is connected to the air outlet side of the filter cartridge assembly. The tee outlet branch pipe is also connected to the air outlet pipe. A supercharger is further provided between the air inlet pipe and the tee outlet branch pipe. Control valves are provided on the air inlet end of the supercharger, the air inlet connecting pipe, the tee inlet branch pipe, and the air outlet pipe. By controlling the control pipe group through the control valves, the interior of the filter cartridge assembly can be cleaned or the air flow can be filtered by the filter cartridge assembly.

[0010] Further, as a preference, the control valve is configured such that during the filtering process, the air in the well sequentially passes through the air inlet pipe, the air inlet connecting pipe, the tee inlet branch pipe, the filter cartridge assembly, the tee outlet branch pipe, and the air outlet pipe and flows to the secondary spraying mechanism; during the cleaning process, the air in the well sequentially passes through the air inlet pipe, the supercharger, and the tee outlet branch pipe and flows reversely into the filter cartridge assembly to discharge the dust particles filtered in the filter cartridge assembly.

[0011] Further, as a preference, a cleaning auxiliary pipe is also connected to the tee inlet branch pipe. The cleaning auxiliary pipe is connected to the air outlet pipe by an auxiliary connecting pipe, and an auxiliary control valve is provided on the auxiliary connecting pipe.

[0012] Further, as a preference, the filter cartridge assembly includes a filter cartridge, at least one layer of filter inner net, a dust discharge joint pipe, and a dust collection bag. At least one layer of filter inner net is provided in the filter cartridge between the tee outlet branch pipe and the tee inlet branch pipe. One end of the filter cartridge close to the tee outlet branch pipe is blocked. One end of the filter cartridge close to the tee inlet branch pipe is connected to the dust discharge joint pipe. The end of the dust discharge joint pipe is detachably connected to the dust collection bag, and a switching valve is provided between the dust collection bag and the dust discharge joint pipe.

[0013] Further, as a preference, a controller is further included. The controller controls the actions of each control valve and the cleaning control valve so that within a certain time of the filtering process of the filter cartridge assembly, the interior of the filter cartridge assembly is changed to be cleaned by controlling each control valve, that is, the controller realizes the cyclic switching between the filtering process of the filter cartridge assembly and the cleaning process of the interior of the filter cartridge assembly.

[0014] The present invention has the following advantages: A mine ventilation and dust removal device provided by the present invention has the following advantages compared with the same type of equipment:

[0015] The mine ventilation and dust removal device of the present invention can effectively improve the dust filtration capacity in the mine. First, it conducts primary filtration on large particles and most dust particles, and then further filtration is achieved by utilizing the functions of spraying and the filtration mesh, while improving the filtration effect, avoiding the problem of excessive filtration load caused by direct spraying and filtration through the filtration mesh. By controlling the operation of the control pipe assembly, the filter cartridge assembly can filter and remove dust from the air flow input by the control pipe group, and the control pipe group can also be used to clean the interior of the filter cartridge assembly, improving the convenience and reliability of control. The controller of the present invention controls the actions of each control valve and the cleaning control valve, enabling the transformation to cleaning the interior of the filter cartridge assembly by controlling each control valve within a certain period of time during the filtration process of the filter cartridge assembly, that is, realizing the cyclic switching between the filtration process of the filter cartridge assembly and the cleaning process of the interior of the filter cartridge by using the controller, which is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the overall front view structural schematic diagram of the present invention;

[0017] Figure 2 is the disassembled structural schematic diagram of the secondary spraying mechanism of the present invention;

[0018] Figure 3 is the partial enlarged structural schematic diagram of the secondary spraying mechanism of the present invention;

[0019] Figure 4 is the structural schematic diagram of the air flow direction during the filtration process of the primary mesh filtration mechanism of the present invention, where the arrow indicates the air flow direction;

[0020] Figure 5 is the structural schematic diagram of the air flow direction during the cleaning process of the primary mesh filtration mechanism of the present invention, where the arrow indicates the air flow direction;

[0021] Figure 6 is the structural schematic diagram of the cleaning liquid flow direction during the thorough cleaning of the primary mesh filtration mechanism of the present invention, where the arrow indicates the cleaning liquid flow direction. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The following will combine the attached Figure 1-6 The present invention will be described in detail. The technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0023] The present invention provides a mine ventilation and dust removal device through improvement, which includes a primary mesh filtering mechanism 6, a secondary spraying mechanism and a ventilation pump group (not shown in the figure). Among them, the ventilation pump group is arranged at the end of the primary mesh filtering mechanism 6 and / or between the primary mesh filtering mechanism and the secondary spraying mechanism. The primary mesh filtering mechanism includes a control pipe group 8 and a filter cartridge assembly 7. The control pipe group 8 is connected to the filter cartridge assembly 7. It is characterized in that the filter cartridge assembly 7 can filter and remove dust from the air flow input by the control pipe group 8, and the control pipe group 8 can clean the interior of the filter cartridge assembly 7. The secondary spraying mechanism can perform secondary filtering and spraying on the air flow filtered by the primary mesh filtering mechanism. The output end of the secondary spraying mechanism is connected to the outside of the well or the place to be ventilated inside the well, and the input end of the primary mesh filtering mechanism is connected to the place to be dust-removed inside the well.

[0024] The secondary spraying mechanism includes a spray dust removal box 4, a connecting pipe 1, an air outlet pipe 5, a waste liquid collection cover 2, a spray assembly 3 and a filter screen (not shown in the figure). Among them, the middle and lower part of the spray dust removal box 4 is connected to the output end of the control pipe group 8 through the connecting pipe 1. The upper part of the spray dust removal box 4 is communicated with an air outlet pipe 5 for outputting air flow. The bottom of the spray dust removal box 4 is communicated with a waste liquid collection cover 2 with a conical structure with a smaller cross-sectional area at the lower end and a larger cross-sectional area at the upper end. The spray assembly 3 is arranged at the top inside the spray dust removal box. The filter screen is arranged below the spray assembly and above the connecting pipe inside the spray dust removal box. The filter screen includes at least one layer of filter mesh and at least one layer of filter membrane. The filter mesh is located below the filter membrane, and the mesh holes of the filter mesh in the upper layer are smaller than the mesh holes of the filter mesh in the lower layer, and the membrane holes of the filter membrane in the upper layer are smaller than the membrane holes of the filter membrane in the lower layer.

[0025] A circulating water treatment filter (not shown in the figure) is arranged between the lower end of the waste liquid collection cover and the spray assembly to realize the recycling of the sprayed water. The spray dust removal box includes a lower annular flange, an upper sealing cover and a middle box body. The lower side of the lower annular flange is integrally formed with the waste liquid collection cover, the upper side of the lower annular flange is hermetically connected to the middle box body, and the upper end of the middle box body is hermetically and detachably connected to the upper sealing cover.

[0026] A plurality of air outlet interfaces are arranged at intervals in the upper part of the spray dust removal box, and each of the air outlet interfaces is connected to the air outlet pipe 5. The spray assembly includes spray branch pipes 9, a main pipe 11, and a pressurizing atomizer 12. Among them, the main pipe 11 is fixedly installed on one side of the upper end of the spray dust removal box, and a plurality of spray joints 13 are arranged at intervals in an array on the main pipe 11. A pressurizing atomizer 12 is connected between the spray joint 13 and the main pipe 11. The end of the spray joint 13 is connected to the spray branch pipe 9. The spray branch pipe 9 extends into the spray dust removal box 4, and the plurality of spray branch pipes 9 are arranged horizontally at intervals.

[0027] A flow equalizing disk 14 is arranged below the spray branch pipe and above the uppermost filter screen in the spray dust removal box. A plurality of flow equalizing holes 15 are arranged at intervals in an array on the flow equalizing disk. The spray nozzle of the spray branch pipe is correspondingly arranged above each flow equalizing hole.

[0028] The primary net filter mechanism includes an air inlet pipe 20, an air outlet pipe 23, an air inlet connecting pipe 19, a three-way inlet branch pipe 26, a three-way outlet branch pipe 22, and a supercharger 21. One side of the middle part of the air inlet pipe is communicated with the three-way inlet branch pipe through the air inlet connecting pipe 19. The three-way inlet branch pipe 26 is also connected to the air inlet side of the filter cartridge assembly. The three-way outlet branch pipe 22 is connected to the air outlet side of the filter cartridge assembly 7. The three-way outlet branch pipe 22 is also communicated with the air outlet pipe 23. A supercharger 21 is also arranged between the air inlet pipe and the three-way outlet branch pipe. Control valves 18 are arranged on the air inlet end of the supercharger, the air inlet connecting pipe, the three-way inlet branch pipe, and the air outlet pipe. By controlling the control pipe group through the control valves, the inside of the filter cartridge assembly can be cleaned or the air flow can be filtered by the filter cartridge assembly.

[0029] The control valve is configured such that during the filtration process, the air in the well sequentially passes through the air inlet pipe 20, the air inlet connecting pipe 19, the three-way inlet branch pipe 26, the filter cartridge assembly 7, the three-way outlet branch pipe 22, and the air outlet pipe 23 and flows to the secondary spray mechanism; during the cleaning process, the air in the well sequentially passes through the air inlet pipe 20, the supercharger 21, and the three-way outlet branch pipe 22 and flows reversely into the filter cartridge assembly 8 to discharge the dust particles filtered in the filter cartridge assembly.

[0030] A cleaning auxiliary pipe 25 is also communicated with the three-way inlet branch pipe. The cleaning auxiliary pipe and the air outlet pipe are connected by an auxiliary connecting pipe 24. An auxiliary control valve is arranged on the auxiliary connecting pipe. The auxiliary connecting pipe can be communicated with a cleaning liquid pumping mechanism to regularly and thoroughly clean the control pipe assembly and the filter cartridge assembly by using the cleaning liquid pumping mechanism.

[0031] The filter cartridge assembly includes a filter cartridge 17, at least one layer of inner filter net, a dust discharge joint pipe 16, and a dust collection bag. At least one layer of inner filter net is arranged inside the filter cartridge between the three-way outlet branch pipe and the three-way inlet branch pipe. One end of the filter cartridge close to the three-way outlet branch pipe is blocked. One end of the filter cartridge 17 close to the three-way inlet branch pipe is communicated with the dust discharge joint pipe. The end of the dust discharge joint pipe 16 is detachably connected to the dust collection bag, and a shut-off valve is arranged between the dust collection bag and the dust discharge joint pipe.

[0032] In this embodiment, the present invention further includes a controller, which controls the actions of each control valve and the cleaning control valve, so that within a certain period of time during the filtration process of the filter cartridge assembly, by controlling each control valve, the internal cleaning process of the filter cartridge assembly can be changed, that is, the controller is used to realize the cyclic switching between the filtration process of the filter cartridge assembly and the internal cleaning process of the filter cartridge assembly. For example, every time the controller realizes 2 hours of filtration, the internal cleaning of the filter cartridge assembly is carried out for 10 minutes, and so on.

[0033] The mine ventilation and dust removal device of the present invention can effectively improve the dust removal and filtration ability in the mine. First, primary filtration is carried out on large particles and most dust particles, and then further filtration is realized by the action of spraying and the filter mesh, while improving the filtration effect, avoiding the problem of excessive filtration load caused by direct spraying and filter mesh filtration. By controlling the operation of the control pipe assembly, the filter cartridge assembly can filter and remove dust from the airflow input by the control pipe group, and the control pipe group can also be used to clean the inside of the filter cartridge assembly, improving the convenience and reliability of control. The controller of the present invention controls the actions of each control valve and the cleaning control valve, so that within a certain period of time during the filtration process of the filter cartridge assembly, by controlling each control valve, the internal cleaning process of the filter cartridge assembly can be changed, that is, the controller is used to realize the cyclic switching between the filtration process of the filter cartridge assembly and the internal cleaning process of the filter cartridge assembly, which is simple and convenient.

[0034] The above shows and describes the basic principles, main features and advantages of the present invention. The standard parts used in the present invention can be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets and welding in the prior art. The machines, parts and equipment all adopt conventional models in the prior art. In addition, the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated here.

[0035] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features disclosed herein.

Claims

1. A mine ventilation and dust removal device, which comprises a primary mesh filtering mechanism, a secondary spraying mechanism and a ventilation pump group, wherein, A ventilation pump group is arranged at the end of the primary net filtration mechanism and / or between the primary net filtration mechanism and the secondary spraying mechanism. The primary net filtration mechanism includes a control pipe group and a filter cartridge assembly. The control pipe group is connected to the filter cartridge assembly. It is characterized in that the filter cartridge assembly can filter and remove dust from the air flow input by the control pipe group, and the control pipe group can clean the interior of the filter cartridge assembly. The secondary spraying mechanism can perform secondary filtration and spraying on the air flow filtered by the primary net filtration mechanism. The output end of the secondary spraying mechanism is connected to the outside of the well or the place to be ventilated inside the well, and the input end of the primary net filtration mechanism is connected to the place to be dust-removed inside the well; The secondary spraying mechanism includes a filter mesh. The filter mesh includes at least one layer of filter screen and at least one layer of filter membrane; The primary net filtration mechanism includes an air inlet pipe, an air outlet pipe, an air inlet connecting pipe, a three-way inlet branch pipe, a three-way outlet branch pipe and a supercharger. One side of the middle part of the air inlet pipe is communicated to the three-way inlet branch pipe through the air inlet connecting pipe. The three-way inlet branch pipe is also connected to the air inlet side of the filter cartridge assembly. The three-way outlet branch pipe is connected to the air outlet side of the filter cartridge assembly. The three-way outlet branch pipe is also communicated with the air outlet pipe. A supercharger is also arranged between the air inlet pipe and the three-way outlet branch pipe. Control valves are arranged on the air inlet end of the supercharger, the air inlet connecting pipe, the three-way inlet branch pipe and the air outlet pipe. By controlling the control valves, the control pipe group can clean the interior of the filter cartridge assembly or use the filter cartridge assembly to filter the air flow; The control valve is configured such that during the filtration process, the air in the well sequentially passes through the air inlet pipe, the air inlet connecting pipe, the three-way inlet branch pipe, the filter cartridge assembly, the three-way outlet branch pipe and the air outlet pipe and flows to the secondary spraying mechanism; during the cleaning process, the air in the well sequentially passes through the air inlet pipe, the supercharger and the three-way outlet branch pipe and flows reversely into the filter cartridge assembly to discharge the dust particles filtered in the filter cartridge assembly.

2. The mine ventilation and dust removal device according to claim 1, characterized in that: The secondary spraying mechanism further includes a spray dust removal box, a connecting pipe, an air outlet pipe, a waste liquid collection cover and a spray assembly. The middle and lower part of the spray dust removal box is connected to the output end of the control pipe group through the connecting pipe. The upper part of the spray dust removal box is communicated with an air outlet pipe for outputting air flow. The bottom of the spray dust removal box is communicated with a waste liquid collection cover having a conical structure with a smaller cross-sectional area at the lower end and a larger cross-sectional area at the upper end. The top inside the spray dust removal box is provided with the spray assembly. The filter mesh is arranged inside the spray dust removal box below the spray assembly and above the connecting pipe. The filter screen is below the filter membrane, and the mesh holes of the upper filter screen are smaller than those of the lower filter screen, and the membrane holes of the upper filter membrane are smaller than those of the lower filter membrane.

3. The mine ventilation and dust removal device according to claim 2, characterized in that: A circulating water treatment filter is provided between the lower end of the waste liquid collection cover and the spraying assembly to achieve the recycling of the spraying water. The spraying dust removal box includes a lower annular flange, an upper sealing cover and a middle box body. The lower side of the lower annular flange is integrally formed with the waste liquid collection cover, the upper side of the lower annular flange is sealingly connected to the middle box body, and the upper end of the middle box body is sealingly and detachably connected to the upper sealing cover.

4. The mine ventilation and dust removal device according to claim 3, characterized in that: A plurality of air outlet interfaces are arranged at intervals in the upper part of the spraying dust removal box, and each of the air outlet interfaces is connected to the air outlet pipe. The spraying assembly includes spraying branch pipes, a main pipe and a pressurizing atomizer. Among them, the main pipe is fixedly installed on one side of the upper end of the spraying dust removal box, and a plurality of spray joints are arranged in an array at intervals on the main pipe. A pressurizing atomizer is connected between the spray joint and the main pipe. The end of the spray joint is connected to the spraying branch pipe, and the spraying branch pipe extends into the spraying dust removal box, and a plurality of the spraying branch pipes are arranged horizontally at intervals.

5. The mine ventilation and dust removal device according to claim 4, characterized in that: A flow equalizing disk is arranged in the spraying dust removal box below the spraying branch pipes and above the uppermost filter screen. A plurality of flow equalizing mesh holes are arranged in an array at intervals on the flow equalizing disk, and a spray nozzle of the spraying branch pipe is correspondingly arranged above each flow equalizing mesh hole.

6. The mine ventilation and dust removal device according to claim 1, characterized in that: A cleaning auxiliary pipe is also communicated with the three-way inlet branch pipe, the cleaning auxiliary pipe is connected to the air outlet pipe by an auxiliary connecting pipe, and an auxiliary control valve is arranged on the auxiliary connecting pipe.

7. The mine ventilation and dust removal device according to claim 1, wherein: The filter cartridge assembly includes a filter cartridge, at least one layer of filter inner net, a dust discharge joint pipe and a dust collection bag. At least one layer of filter inner net is arranged in the filter cartridge between the three-way outlet branch pipe and the three-way inlet branch pipe. One end of the filter cartridge close to the three-way outlet branch pipe is blocked, and the end of the filter cartridge close to the three-way inlet branch pipe is communicated with the dust discharge joint pipe. The end of the dust discharge joint pipe is detachably connected to the dust collection bag, and an opening and closing valve is arranged between the dust collection bag and the dust discharge joint pipe.

8. The mine ventilation and dust removal device according to claim 7, characterized in that: It also includes a controller, and the controller controls the actions of each control valve so that after the filter cartridge assembly filters for a certain period of time, the internal cleaning of the filter cartridge assembly is realized by controlling each control valve, that is, the cycle switching between the filtering process of the filter cartridge assembly and the internal cleaning process of the filter cartridge assembly is realized by using the controller.

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