CN210863184U - Device for testing and optimizing different types of dust collectors in underground coal mine - Google Patents
Device for testing and optimizing different types of dust collectors in underground coal mine Download PDFInfo
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- CN210863184U CN210863184U CN201922390149.6U CN201922390149U CN210863184U CN 210863184 U CN210863184 U CN 210863184U CN 201922390149 U CN201922390149 U CN 201922390149U CN 210863184 U CN210863184 U CN 210863184U
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- 239000000428 dust Substances 0.000 title claims abstract description 314
- 238000012360 testing method Methods 0.000 title claims abstract description 29
- 239000003245 coal Substances 0.000 title claims abstract description 27
- 238000005553 drilling Methods 0.000 claims abstract description 22
- 230000000694 effects Effects 0.000 claims abstract description 20
- 238000005070 sampling Methods 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 79
- 230000004888 barrier function Effects 0.000 claims description 33
- 239000000443 aerosol Substances 0.000 claims description 14
- 238000000926 separation method Methods 0.000 claims description 14
- 239000011229 interlayer Substances 0.000 claims description 9
- 238000007664 blowing Methods 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 239000003250 coal slurry Substances 0.000 claims description 3
- 230000008602 contraction Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 6
- 230000002265 prevention Effects 0.000 abstract description 5
- 238000012827 research and development Methods 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 abstract description 3
- 238000005457 optimization Methods 0.000 abstract description 2
- 239000002817 coal dust Substances 0.000 description 10
- 239000003921 oil Substances 0.000 description 10
- 239000000203 mixture Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 239000012528 membrane Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000012716 precipitator Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
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- 230000001276 controlling effect Effects 0.000 description 1
- 239000010727 cylinder oil Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
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- 238000002347 injection Methods 0.000 description 1
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Abstract
The utility model discloses a device for testing and optimizing different types of dust collectors in underground coal mine, which comprises a dust generator, a drill hole, an orifice dust collecting unit, a dust collector unit and a dust collecting effect sampling unit; the front end of the drill hole is communicated with a dust outlet of the dust generator; a hollow drill rod is arranged in the drill hole, and the diameter of the drill hole is larger than that of the drill rod; the drill hole is provided with a hole opening dust collecting unit which is communicated with the dust remover unit, and the dust removing effect sampling unit can sample the dust removing effect of the dust removing unit. The utility model discloses simple structure, convenient operation is convenient for test its dust arrester sealing characteristic of new research and development and dust collection characteristic parameter and the dust fall effect's of different grade type goodness, the utility model discloses fundamentally has realized that coal road dry-type drilling construction different grade type dust remover in the parameter determination and the optimization of laboratory in the pit, provides powerful technical support for the safe high-efficient exploitation and the effective prevention and cure of dust in the pit in the colliery.
Description
Technical Field
The utility model belongs to the technical field of the dust remover experimental apparatus, concretely relates to a device for testing and optimizing colliery different grade type dust remover in pit.
Background
In the underground coal mine, a large number of drill holes are required to be constructed in the coal seam no matter in the coal roadway tunneling construction or the pressure relief gas extraction construction of the outburst coal seam. While the construction drilling in the coal seam can not be dustproof like the wet drilling in the rock stratum, a dry measure (compressed air dust removal) is needed to discharge coarse slag and coal dust at the bottom of the hole so as to realize the design depth to be reached. However, a large amount of coal dust generated by the dry drilling construction not only causes serious pollution problems to underground air, equipment and environment, but also brings serious influences to the sight and health of underground operators, and also severely restricts the underground safe and efficient production. Therefore, researchers are guided by basic theories such as hydrodynamics and machine manufacturing, aim at the dust production characteristics of all mine coal beds and collect the produced dust in a dust collector as far as possible without influencing the rotation of a drill rod, and research and develop different types of dust collectors meeting the site coal roadway drilling construction, so that the dust collectors are important safety problems which are urgently needed and highly valued on the site and urgently need to be solved.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a dust arrester sealing characteristic and collection dirt characteristic parameter and the dust fall effect of different grade type are good and bad convenient to test its new research and development, ensure that equipment is used for testing colliery different grade type dust remover in the pit of safe high-efficient use in the pit.
The utility model adopts the technical proposal that: a device for testing and optimizing different types of dust collectors in underground coal mines comprises a dust generator, a drill hole, an orifice dust collection unit, a dust collector unit and a dust collection effect sampling unit; the front end of the drill hole is communicated with a dust outlet of the dust generator; a hollow drill rod is arranged in the drill hole, and the diameter of the drill hole is larger than that of the drill rod; an orifice dust collecting unit is arranged at an orifice of the drill hole and communicated with the dust remover unit, and the dust removing effect sampling unit can sample the dust removing effect of the dust removing unit;
the dust generator comprises a dust aerosol generator, and an outlet of the dust aerosol generator is communicated with the front end of the drill hole; the dust aerosol generator is connected with the air compressor III through a pipeline; the orifice dust collecting unit comprises a dust collector feeding device, a dust collector and a wind pressure curtain wall; the dust collector and the dust collector feeding device are sleeved on the drill rod; the front end of the dust collector is communicated with a gap between the drill hole and the drill rod, and the rear end of the dust collector is fixedly provided with a wind pressure curtain wall which is connected with an air compressor I; the front end of the dust collector feeding device is connected with the rear end of the dust collector, and the dust collector can be pushed to feed along the drill rod; a dust outlet is formed in the side wall of the dust collector, a positive pressure ejector is arranged at the dust outlet and connected with the air compressor II; the dust outlet can be connected to a plurality of dust collectors in the dust collector unit.
In the device for testing and optimizing the dust collectors of different types in the underground coal mine, the dust collector unit comprises a water bath type dust collector, a box type grading dust collector and a water-gas mixed secondary jet flow dust collector, wherein the water bath type dust collector, the box type grading dust collector and the water-gas mixed secondary jet flow dust collector can be respectively connected with a dust collector through hoses; the front end of the drilling hole is a conical dust blowing port which is communicated with a dust outlet of the dust generator, and the side wall of the dust collector is provided with an anti-protruding baffle which is positioned in front of the dust outlet.
In the device for testing and optimizing the dust collectors of different types in the underground coal mine, the dust removal effect sampling unit comprises an explosion-proof dust sampler I and filter paper I which are arranged at the outlet of the dust collector unit, and an explosion-proof dust sampler II and filter paper II which are arranged at the rear end of the central hole of the drill rod.
In the device for testing and optimizing the dust collectors of different types in the underground coal mine, the dust collector feeding device comprises a plurality of oil cylinders and sleeves, the sleeves are sleeved on the drill rod, the oil cylinders are positioned on the outer sides of the sleeves, the cylinder barrels of the oil cylinders are fixedly arranged on a fixing plate at the front end of the drilling machine, and the front ends of the sleeves are provided with flange plates which are connected with the front ends of the oil cylinders; the flange is connected with the rear end of the dust collector.
In the device for testing and optimizing different types of dust removers in the underground coal mine, the water bath type dust remover comprises a water tank and water; the water tank top plate is provided with a through hole, the outlet end of the connecting hose extends into the water in the water tank from the through hole, and the other end of the connecting hose is connected with the dust guide outlet.
In the device for testing and optimizing different types of dust removers in the underground coal mine, the box-type grading dust remover comprises a box body, a plurality of vibration type dust separation barriers and sponge interlayer barriers; the top of the box body is provided with a through hole, the through hole is arranged close to one end of the box body, and the outlet end of the connecting hose extends into the box body; the end plate at the other end of the box body is provided with a dust remover outlet and a sponge interlayer barrier, and the sponge interlayer barrier is arranged on the inner side surface of the box body; the vibrating type dust-separation barrier is arranged in parallel to an end plate of the box body, two sides of the vibrating type dust-separation barrier are respectively provided with a water jet nozzle, the water jet nozzles are arranged on a top plate of the box body, and the bottom of the box body is provided with a coal slurry discharge channel.
In the device for testing and optimizing the dust collectors of different types in the underground coal mine, the dust collector of the water-gas mixed secondary jet flow comprises a dust collector body, a water inlet pipe, an air inlet pipe and a water-gas mixed nozzle, wherein the lower part of the dust collector body is conical, and the upper part of the dust collector body is cylindrical; the middle part is a cylindrical dust remover contraction section which is smaller than the diameters of the two ends of the dust remover body; the upper part of the dust remover body is provided with a water inlet pipe and an air inlet pipe, the outlet ends of the water inlet pipe and the air inlet pipe respectively extend into the dust remover body, and the outlet ends of the water inlet pipe and the air inlet pipe are respectively connected with the water inlet and the air inlet of the air-water mixing nozzle; the water inlet pipe and the air inlet pipe are respectively provided with a fine adjustment disc type water air regulating valve and a fine adjustment disc type air regulating valve.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses simple structure, after assembling the device that is used for testing and optimizing colliery different grade type dust remover in the pit, according to test plan and scheme requirement respectively to the dust remover of three kinds of different grade types test at different wind pressures with different dust blowing volume condition respective dust collection efficiency down, convenient operation, be convenient for test its dust arrester sealing characteristic of new research and development and collection dirt characteristic parameter and the dust fall effect's of different grade type goodness, the utility model discloses fundamentally has ensured colliery operation environment's improvement and the prevention of coal dust gas calamity, provides powerful technical support for the safe high-efficient exploitation of coal resource.
Drawings
FIG. 1 is a schematic structural diagram of the device for testing and optimizing different types of dust collectors in underground coal mine.
Fig. 2 is a structural view of the dust collector of the present invention.
Fig. 3 is a sectional view of the water bath type dust collector of the present invention.
Fig. 4 is a sectional view of the "box type classification" dust collector of the present invention.
FIG. 5 is a structural diagram of the dust remover with water-gas mixture and secondary jet flow.
Fig. 6 is a view from a in fig. 5.
In fig. 1: 1-dust aerosol generator; 2-air compressor iii; 3, a pipeline; 4-conical dust blowing port; 5, a drill bit; 6, drilling a rod; 7-a central hole of the drill rod; 8, drilling; 9-coal dust; 10-a dust collector; 11-outburst prevention baffle; 12-dust outlet; 13-positive pressure jet device; 14-air compressor II; 15-air compressor I; 16-wind pressure curtain wall; 18-dust collector feed means; 19-connecting a hose; 20-explosion-proof dust sampler II and 24-explosion-proof dust sampler I; 21-water bath type dust remover; 22- "box grading" dust remover; 23- "water-gas mixture secondary jet" dust remover.
In fig. 2: 101-a drill rig connection plate; 102-oil cylinder oil supply inlet; 106-a sleeve; 107-centering disc; 108-drill front end fixing plate; 109-hydraulic oil circuit; 1010-slag discharge port; 1011 oil cylinder; 1012-bolt; 1017-front end of dust collector.
In fig. 3: 24-explosion-proof dust sampler; 2101-water; 2102-connecting the outlet end of the hose; 19-connecting a hose; 2104-cinder; 2103-water tank.
In fig. 4: 24-explosion-proof dust sampler; 2201-box body; 2202-first stage water jet nozzle; 2203-first-stage spray water drops and coal dust mixed motion track; 2204-first-stage vibration type dust barrier; 2205-two-stage water jet nozzle; 2206-moving track of mixing the two-stage spray water drops and coal dust; 2207-two-stage vibration type dust barrier; 2208-three-stage water jet nozzle; 2209-three-level spray water droplet and coal dust mixing motion track, 2210-three-level vibration type dust isolation barrier; 2211-four-stage water jet nozzle; 2212-four-stage spray water drop and coal dust mixing motion track; 2213-sponge sandwich barrier; 2214 — dust remover outlet; 1115-water and coal dust mixture; 2216-coal slurry; 2217-slurry discharge channel; 2218 — slurry outlet baffle; 2219 — moving wheels;
in fig. 5: 2301-water inlet pipe; 2302-fine tuning disc type water regulating valve; 2303 — gas inlet; 2304-upper part of dust collector; 2305-water and air injection assembly; 2306-lower part of dust collector; 2307-contraction section of dust remover; 2308-a handle; 2309-water tank external circular plate; 2310-dust collector body; 2311 fine adjustment disk type air adjusting valve.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in figures 1-5, the utility model discloses a device for testing and optimizing colliery different grade type dust remover in pit, including dust generator, drilling 8, drill way dust collection unit, dust remover unit and dust removal effect sampling unit.
The dust generator comprises a dust aerosol generator 1, an outlet of the dust aerosol generator 1 is communicated with a conical dust blowing opening at the front end of the drilling hole 8, and the dust aerosol generator 1 is connected with an air compressor III 2 through a pipeline 3. A hollow drill rod 6 is arranged in the drill hole 8, and the diameter of the drill hole 8 is larger than that of the drill rod 6; an orifice dust collecting unit is arranged at the orifice of the drill hole 8 and is communicated with the dust remover unit.
The orifice dust collecting unit comprises a dust collector feeding device 18, a dust collector 10 and a wind pressure curtain wall 16; as shown in FIG. 2, the dust collector feeding device 18 comprises a plurality of oil cylinders 1011 and a sleeve 106, the sleeve 106 is sleeved on the drill rod 6, the oil cylinders 1011 are positioned outside the sleeve 106, the cylinder barrels of the oil cylinders 1011 are fixedly arranged on a front end fixing plate 108 of the drilling machine, the front end fixing plate 108 of the drilling machine is arranged on a connecting plate 101 of the drilling machine, and the connecting plate 101 of the drilling machine is arranged on the drilling machine. The front end of the sleeve 106 is provided with a flange which is connected with the front end of the oil cylinder 1011; the flange is connected to the rear end of the dust collector 10, and the cylinder 1011 can push the dust collector 10 forward along the drill rod 6 through the sleeve 106. The dust collector 10 suit is on drilling rod 6, and the front end of dust collector 10 and the clearance intercommunication between drilling 8 and the drilling rod 6, rear end department are fixed with wind pressure curtain 16, and wind pressure curtain 16 is connected with air compressor I15, and air compressor I15 is to wind pressure curtain 16 air inlet, and the production air curtain prevents that the coal dust from leaking from the clearance between drilling rod 6 and the dust collector 10 hole. The lateral wall of the dust collector 10 is provided with a dust guide outlet 12 and a slag discharge opening 1010, the dust guide outlet 12 is provided with a positive pressure ejector 13, the positive pressure ejector 13 is connected with an air compressor II 14, and the dust guide outlet can be connected with a plurality of dust collectors in a dust collector unit. The air compressor ii 14 is introduced into the dust container 10 through the positive pressure ejector 13 so that the air pressure in the dust container 10 is higher than that of the dust collector unit, and the smut in the dust container 10 flows toward the dust collector unit with the air.
The dust removal effect sampling unit comprises an explosion-proof dust sampler I24 and filter paper I which are arranged at the outlet of the dust remover unit, and an explosion-proof dust sampler II 20 and filter paper II which are arranged at the rear end of the central hole of the drill rod. The dust removal effect sampling unit can sample the dust removal effect of the dust removal unit.
The dust remover unit comprises a water bath type dust remover 21, a box type grading dust remover 22 and a water-gas mixed secondary jet flow dust remover 23, wherein the water bath type dust remover 21, the box type grading dust remover 22 and the water-gas mixed secondary jet flow dust remover 23 can be respectively connected with the dust collector 10 through a connecting hose 19; the side wall of the dust collector 10 is provided with a protruding prevention baffle 11, and the protruding prevention baffle 11 is positioned. As shown in fig. 3, the water bath type dust collector 21 includes a water tank 2103 and water 2101; a through hole is arranged on the top plate of the water tank 2105, the outlet end of the connecting hose 19 extends into the water 2101 in the water tank 2103 from the through hole, and the other end of the connecting hose 19 is used for being connected with the dust outlet 12.
As shown in fig. 4, the "box-type grading" dust collector 22 includes a box 2201, three vibration-type dust barriers (i.e., a first-stage vibration-type dust barrier 2204, a second-stage vibration-type dust barrier 2207 and a third-stage vibration-type dust barrier 2210), and a sponge-sandwiched dust barrier 2213; the top of the box body 2201 is provided with a through hole which is arranged near one end of the box body, and the outlet end of the connecting hose 19 extends into the box body 2201; the end plate at the other end of the box 2201 is provided with a dust remover outlet 2214 and a sponge interlayer barrier 2214, the sponge interlayer barrier 2214 is arranged on the inner side surface of the box 2201 and is blocked at the dust remover outlet 2214, and air discharged from the dust remover outlet 2214 is further filtered. The first-stage vibration type dust-separation barrier 2204, the second-stage vibration type dust-separation barrier 2207 and the third-stage vibration type dust-separation barrier 2210 are arranged in parallel to an end plate of the box body 2201, a first-stage water jet nozzle 2202 is arranged between the first-stage vibration type dust-separation barrier 2204 and the end plate close to the through hole of the connecting hose 19, a second-stage water jet nozzle 2205 is arranged between the first-stage vibration type dust-separation barrier 2204 and the second-stage vibration type dust-separation barrier 2207, a third-stage water jet nozzle 2208 is arranged between the second-stage vibration type dust-separation barrier 2207 and the third-stage vibration type dust-separation barrier 2210, a fourth-stage water jet nozzle 2211 is arranged between the third-stage vibration type dust-separation barrier 2210 and the end plate provided with the sponge interlayer barrier 2214, the first-stage water jet nozzle 2202, the second-stage water jet nozzle 2205, the third-stage water jet nozzle 2208. The bottom of the box 2201 is provided with a moving wheel 2219 for facilitating the transfer.
As shown in fig. 5, the "water-gas mixture secondary jet" dust remover 23 comprises a dust remover body 2310, a water inlet pipe 2301, an air inlet pipe and a water-gas mixture nozzle, wherein the lower part 2306 of the dust remover body is conical, and the upper part 2304 of the dust remover body is cylindrical; the middle is a cylindrical precipitator contraction section 2307, which is smaller than the diameter of the two ends of the precipitator body 2310. The upper part 2304 of the dust remover body is provided with a water inlet pipe 2301 and an air inlet pipe, the outlet ends of the water inlet pipe 2301 and the air inlet pipe respectively extend into the dust remover body 2310, and the outlet ends of the water inlet pipe 2301 and the air inlet pipe are respectively connected with the water inlet and the air inlet of the air-water mixing nozzle; the inlet pipe 2301 and the inlet pipe are respectively provided with a fine adjustment disc type water air adjusting valve 2302 and a fine adjustment disc type air adjusting valve 2311. The outer side wall of the dust remover body 2310 is provided with a handle 2308, so that the dust remover is convenient to transfer.
The utility model discloses a method for testing and optimizing colliery different grade type dust remover in pit, including following step:
1) the experimental device for testing and optimizing the dust collectors of different types in the underground coal mine is assembled.
2) Starting an air compressor III 2 and an air compressor II 14, and closing a wind pressure switch of the wind pressure curtain wall; the wind pressure of an air compressor III 2 and the wind pressure of an air compressor II 14 are both adjusted to be 0.6MPa, and the dust generation amount of the dust aerosol generator 1 is controlled to be 20 g/min;
3) collecting the dust concentration at the rear end of the dust collector and the rear end of the connecting hose through an explosion-proof dust sampler I24 and an explosion-proof dust sampler II 20, wherein the sampling time is 2 min; then repeatedly collecting the dust concentration at the rear end of the dust collector and the rear end of the connecting hose twice; taking the average value of the dust concentration at the rear end of the dust collector measured in the third time as the dust concentration at the rear end of the dust collector, and taking the average value of the dust concentration at the rear end of the connecting hose measured in the third time as the dust concentration at the rear end of the connecting hose;
4) repeating the step 3) when the dust amount of the dust aerosol generator 1 is 30 g/min, 40 g/min, 50 g/min, 60g/min, 70 g/min and 80 g/min;
5) connecting the connecting hose 19 with the water bath type dust collector 21;
6) the wind pressure curtain wall switch is opened, and the dust emission quantity of the dust aerosol generator 1 is controlled to be 20 g/min; the air pressure of the air compressor I15 is adjusted to be 0.6MPa at the maximum value;
7) the concentration of dust discharged from the rear end of the dust collector 10 and the upper part of the water bath type dust collector 21 is collected three times through an explosion-proof dust sampler I24 and an explosion-proof dust sampler II 20; taking the average value of the dust concentration at the rear end of the dust collector measured in the third time as the dust concentration at the rear end of the dust collector, and taking the average value of the dust concentration at the rear end of the connecting hose measured in the third time as the dust concentration at the rear end of the connecting hose;
8) repeating the step 7 when the wind pressures of the air compressor III 2 and the air compressor II 14 are respectively 0.5 MPa, 0.4MPa, 0.3 MPa and 0.2 MPa);
9) controlling the dust amount of the dust aerosol generator 1 to be 30 g/min, 40 g/min, 50 g/min, 60g/min, 70 g/min and 80g/min respectively, and repeating the steps 7) to 8);
10) connecting the connecting hose 19 with the box-type grading-type dust remover 22, and repeating the steps 5) to 9);
11) connecting the connecting hose 19 with a 'steam-water mixed secondary jet type' dust remover 23, and repeating the steps 5) -9);
12) and (4) data processing and optimization.
12.1) dust concentration determination method Using Filter Membrane Mass dust determination method, which is essentially to make a certain volume of dust-containing air pass through a filter membrane with known mass under the action of a diaphragm pump or an electric air extractor, and calculate the mass (mg/m) of dust in unit volume of air according to the mass and gas collection amount of dust on the filter membrane after sampling3). The dust concentration calculation formula is as follows:
in the formula: cMDust concentration in air, mg/m3;
Δ M-increase in filter,. DELTA.M = M1—M2，mg ；
M1，M2-filter mass before and after sampling, mg, respectively;
t-sampling duration, min;
q is the flow at sampling, L/min.
12.2) arranging and drawing each group of actually measured data into a change curve, and finding out the optimal dust removal effect point and related parameters thereof on the curve graph.
12.3) carrying out statistical analysis on the data of each group to find out the dust remover with the optimal air pressure parameter and the optimal dust removing effect of the rear end air curtain wall of the dust collector.
Claims (7)
1. The utility model provides a device for testing and optimizing colliery is different type dust remover in pit which characterized in that: the device comprises a dust generator, a drill hole, an orifice dust collection unit, a dust remover unit and a dust removal effect sampling unit; the front end of the drill hole is communicated with a dust outlet of the dust generator; a hollow drill rod is arranged in the drill hole, and the diameter of the drill hole is larger than that of the drill rod; an orifice dust collecting unit is arranged at an orifice of the drill hole and communicated with the dust remover unit, and the dust removing effect sampling unit can sample the dust removing effect of the dust removing unit;
the dust generator comprises a dust aerosol generator, and an outlet of the dust aerosol generator is communicated with the front end of the drill hole; the dust aerosol generator is connected with the air compressor III through a pipeline; the orifice dust collecting unit comprises a dust collector feeding device, a dust collector and a wind pressure curtain wall; the dust collector and the dust collector feeding device are sleeved on the drill rod; the front end of the dust collector is communicated with a gap between the drill hole and the drill rod, and the rear end of the dust collector is fixedly provided with a wind pressure curtain wall which is connected with an air compressor I; the front end of the dust collector feeding device is connected with the rear end of the dust collector, and the dust collector can be pushed to feed along the drill rod; a dust outlet is formed in the side wall of the dust collector, a positive pressure ejector is arranged at the dust outlet and connected with the air compressor II; the dust outlet can be connected to a plurality of dust collectors in the dust collector unit.
2. The device for testing and optimizing different types of dust collectors in coal mines according to claim 1, characterized in that: the dust remover unit comprises a water bath type dust remover, a box type grading dust remover and a water-gas mixed secondary jet flow dust remover, wherein the water bath type dust remover, the box type grading dust remover and the water-gas mixed secondary jet flow dust remover can be respectively connected with the dust remover through hoses; the front end of the drilling hole is a conical dust blowing port which is communicated with a dust outlet of the dust generator, and the side wall of the dust collector is provided with an anti-protruding baffle which is positioned in front of the dust outlet.
3. The device for testing and optimizing different types of dust collectors in coal mines according to claim 1, characterized in that: the dust removal effect sampling unit comprises an explosion-proof dust sampler I and filter paper I which are arranged at the outlet of the dust remover unit, and an explosion-proof dust sampler II and filter paper II which are arranged at the rear end of the central hole of the drill rod.
4. The device for testing and optimizing different types of dust collectors in coal mines according to claim 1, characterized in that: the dust collector feeding device comprises a plurality of oil cylinders and sleeves, the sleeves are sleeved on the drill rod, the oil cylinders are positioned outside the sleeves, cylinder barrels of the oil cylinders are fixedly arranged on a front end fixing plate of the drilling machine, and the front ends of the sleeves are provided with flange plates which are connected with the front ends of the oil cylinders; the flange is connected with the rear end of the dust collector.
5. The device for testing and optimizing different types of dust collectors in coal mines according to claim 2, characterized in that: the water bath type dust remover comprises a water tank, water and a connecting hose; the water tank top plate is provided with a through hole, the outlet end of the connecting hose extends into the water in the water tank from the through hole, and the other end of the connecting hose is connected with the dust guide outlet.
6. The device for testing and optimizing different types of dust collectors in coal mines according to claim 2, characterized in that: the box-type grading dust remover comprises a box body, a plurality of vibration type dust-isolating barriers and sponge interlayer barriers; the top of the box body is provided with a through hole, the through hole is arranged close to one end of the box body, and the outlet end of the connecting hose extends into the box body; the end plate at the other end of the box body is provided with a dust remover outlet and a sponge interlayer barrier, and the sponge interlayer barrier is arranged on the inner side surface of the box body; the vibrating type dust-separation barrier is arranged in parallel to an end plate of the box body, two sides of the vibrating type dust-separation barrier are respectively provided with a water jet nozzle, the water jet nozzles are arranged on a top plate of the box body, and the bottom of the box body is provided with a coal slurry discharge channel.
7. The device for testing and optimizing different types of dust collectors in coal mines according to claim 2, characterized in that: the dust remover comprises a dust remover body, a water inlet pipe, an air inlet pipe and a gas-water mixing nozzle, wherein the lower part of the dust remover body is conical, and the upper part of the dust remover body is cylindrical; the middle part is a cylindrical dust remover contraction section which is smaller than the diameters of the two ends of the dust remover body; the upper part of the dust remover body is provided with a water inlet pipe and an air inlet pipe, the outlet ends of the water inlet pipe and the air inlet pipe respectively extend into the dust remover body, and the outlet ends of the water inlet pipe and the air inlet pipe are respectively connected with the water inlet and the air inlet of the air-water mixing nozzle; the water inlet pipe and the air inlet pipe are respectively provided with a fine adjustment disc type water air regulating valve and a fine adjustment disc type air regulating valve.
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| CN201922390149.6U CN210863184U (en) | 2019-12-26 | 2019-12-26 | Device for testing and optimizing different types of dust collectors in underground coal mine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110967209A (en) * | 2019-12-26 | 2020-04-07 | 湖南科技大学 | Device and method for testing and optimizing different types of dust collectors in underground coal mine |
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2019
- 2019-12-26 CN CN201922390149.6U patent/CN210863184U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110967209A (en) * | 2019-12-26 | 2020-04-07 | 湖南科技大学 | Device and method for testing and optimizing different types of dust collectors in underground coal mine |
| CN110967209B (en) * | 2019-12-26 | 2024-05-24 | 湖南科技大学 | Device and method for testing and optimizing different types of dust collectors in coal mine |
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