CN105126521A - Mining wet dust collector - Google Patents
Mining wet dust collector Download PDFInfo
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- CN105126521A CN105126521A CN201510558767.0A CN201510558767A CN105126521A CN 105126521 A CN105126521 A CN 105126521A CN 201510558767 A CN201510558767 A CN 201510558767A CN 105126521 A CN105126521 A CN 105126521A
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Abstract
A mining wet dust collector comprises an impeller and an impeller hub with one end fixed to a rotating shaft. The rear of the impeller is provided with a dehydrating barrel. A water collecting barrel is arranged between the impeller and the dehydrating barrel. A conical-cylinder-shaped water blocking sheet is arranged in the water collecting barrel. The impeller hub is of an H-shaped structure. The inner corners of the H-shaped structure are in the shape of an arc. A water supply pipe is arranged. A water outlet of the water supply pipe corresponds to the inner corner, close to one side of the rotating shaft, of the hub. The water collecting barrel comprises a positive pressure cavity and a constant pressure cavity. The water blocking sheet is arranged in the positive pressure cavity. The positive pressure cavity and the normal pressure cavity are separated through a front baffle which is provided with a constant pressure cavity hole. The mining wet dust collector has the advantages of being compact in structure, high in dust removing efficiency, small in the number of operating parts, small in maintenance quantity and stable and reliable in work state; the water supply pipe is directly connected with the mining wet dust collector without a spraying nozzle; the impeller hub is used for atomizing water flow instead of blades; the requirement for water quality is low, and sewage can also be cyclically used; centrifugal force of the impeller hub is used for atomizing the water flow, and dust in air is directly hit and prevented.
Description
Technical field
The present invention relates to the dust removal field of coal mine down-hole tunnel, particularly a kind of novel mining wet precipitator.
Background technology
On the working face in colliery, in the digging operation process of fully-mechanized digging machine, coal and rock are broken in excavation, define a large amount of dust.Coal-winning machine and belt conveyer coal breakage place also can produce a large amount of dust.The dust filled the air seriously threatens the healthy of coal miner, and the incidence of pneumoconiosis is apparently higher than other industry, and operating condition is still very severe.In narrow tunnel, require that cleaner volume is little, process air quantity is as far as possible large, and maintenance workload is little.
Dry dust removal is only suitable for the extremely low tunnel of gas amount or rock gangway uses, so in most cases still need to use wet scrubber.Atomized water gas blowout is normally entered dust remover air duct by the wet scrubber of prior art, removes after moistening for the dust in dust-contained airflow through screen pack, but due in the water supply under mine, impurity is a lot, and the atomizer of water for dust removal, very easily results in blockage.Simultaneously because the geological conditions of underground coal mine is very complicated, have coal dust, rock dust, earth, wood chip, iron rust etc. in dust, the screen pack of Chalk-dust filtering also easily blocks.In addition, the dedusting fan of prior art adopts depression dust-removing structure, and this structure causes the current in blower fan not smooth, the deficiencies such as efficiency of dust collection difference.
Summary of the invention
The object of the invention is to provide that a kind of structural design solved the problem is more reasonable, compact conformation, the mining wet precipitator that easy to operate, maintenance is little.
A kind of mining wet precipitator, comprise impeller and one end and be fixed on impeller hub in rotating shaft, there is dehydration tube at described impeller rear portion, it is characterized in that being provided with receipts water drum between described impeller and dehydration tube, be provided with the block water plate of cone barrel shape in described receipts water drum, described impeller hub is I-shape construction, and the wheel hub interior angle of described I-shape construction is arcuate shape, feed pipe is provided with, the wheel hub interior angle of the corresponding nearly rotating shaft side of delivery port of described feed pipe between receipts water drum and impeller hub.
Described a kind of mining wet precipitator, is characterized in that described block water plate is 2-6 sheet, has annular water tank between each block water plate.
Described a kind of mining wet precipitator, it is characterized in that described receipts water drum comprises malleation chamber and common pressure chamber, described block water plate is placed in malleation chamber, has front apron to be separated by, described front apron is provided with normal pressure lumen pore between described malleation chamber and common pressure chamber.
Described a kind of mining wet precipitator, is characterized in that described dehydration tube internal fixtion has the diffusion cylinder coaxial with it, and the outer wall of described diffusion cylinder and the inwall of dehydration tube are fixed with dehydration silk screen.
Mining wet precipitator feature of the present invention is: compact conformation, and efficiency of dust collection is high, and running gear is few, and maintenance is little, and stable working state is reliable.Without nozzle, but directly pass into feed pipe.The wheel hub of impeller is used to carry out atomization flow, instead of blade.Low to water quality requirement, sewage is also passable, can recycle.Utilize the centrifugal force of impeller hub, make atomization of water current, directly hit and tackle the dust in air.Major part water smoke and dust, be directly dumped into receipts water drum, and dedusting section is very brief and compact.Adopt the receipts water drum of anti-splashing structure, the water major part processing dust used is here discharged.Because receipts water drum is the pressure wind direction being arranged in impeller rear portion, receiving water drum block water plate region is barotropic state, and inner water discharge easily.Receive water drum afterbody and establish common pressure chamber, normal pressure cavity pressure, lower than block water plate region, attracts the air-flow containing dust and current, so that the collection of current, and discharges receipts water drum.Dehydration tube inwall is pasted dehydration silk screen, carries out water smoke dehydration, ensure dehydration rate.
Accompanying drawing explanation
Fig. 1 is mining wet precipitator agent structure schematic diagram;
Fig. 2 is the A-A view of Fig. 1;
Fig. 3 is impeller and receives water drum structural representation;
Fig. 4 is B-B view in Fig. 3;
Fig. 5 is C-C view in Fig. 3;
Fig. 6 is impeller hub enlarged diagram;
Fig. 7 is dewatering bucket structure schematic diagram;
Fig. 8 is the A direction view of Fig. 7;
Fig. 9 is E-E flow deflector cut-away view in Fig. 8;
Figure 10 is D-D zoomed-in view in Fig. 7.
In above-mentioned accompanying drawing, arrows is wind direction signal.
In figure, 1-wind collecting unit, 2-axial flow blower, 3-motor shroud, 4-motor, 5-wheel hub interior angle, 6-impeller hub, 7-impeller blade, 8-receives water drum, 9-diffusion cylinder, 10-flow deflector, 11-dehydration tube, 12-rear shield, 13-frame, 14-feed pipe, 15-front sewage disposal groove, dirt discharge groove after 16-, 17-impeller balance block, 18-connecting plate, 19-block water plate, 20-annular water tank, 21-receives water drum shell, 22-communication gap, 23-electric machine main shaft, orifice plate before 24-, 25-front sewage disposal pipe, 26-common pressure chamber, 27-front apron, the short connecting plate of 28-, tank after 29-, orifice plate after 30-, blow-off pipe after 31-, 32-dehydration tube shell, 33-binding agent, 34-dewaters silk screen, 35-waterstop, 36-normal pressure hole.
Detailed description of the invention
Below in conjunction with accompanying drawing, further illustrate the present invention.
In Fig. 1-2, mining wet precipitator of the present invention forms primarily of axial flow blower 2, feed pipe 14, receipts water drum 8, dehydration tube 11 and frame 13.Axial flow blower 2 is positioned at the front portion of mining wet precipitator, by bolted in frame 13.Receiving water drum 8 is welded on the shell of axial flow blower 2 air-out, and feed pipe 14 is welded on the shell of receipts water drum 8, passes into and receives water drum 8 inside.Dehydration tube 11 is by bolted on the flange receiving water drum 8, and incorporating mill frame 13 is connected with bolt.
In axial flow blower 2, wind collecting unit 1 is by bolted in the front end of axial flow blower 2 shell, and blower motor 4 is contained in motor shroud 3, be fixed by bolts to the rear end of motor shroud 3, impeller hub 6 is contained on the main shaft of motor 4, connects with key, and with axle head catch and screw in compression.Motor shroud 3 is connected by the shell of passage with axial flow blower 2.
In figs. 3-5, feed pipe 14 is divided into two towards the little outlet pipe of impeller hub 6 in water side.The block water plate 19 of Y shape, be weldingly connected at receipts water drum 8 inner chamber with connecting plate 18, but block water plate 19 is not connected with barrel, centre is separated with gap.The inner side place of block water plate 19 forms annular water tank 20.Receive water drum 8 afterbody and have common pressure chamber 26, the short connecting plate 28 of common pressure chamber 26 is welded to connect with block water plate 19, and the front apron 27 of common pressure chamber 26 is drilled with multiple normal pressure hole 36, and common pressure chamber 26 is communicated with receipts water drum 8 outer casing inner wall, and common pressure chamber 26 bottom communicates with front sewage disposal groove 15.Front orifice plate 24 covers on front sewage disposal groove 15, and front sewage disposal pipe 25 is welded on front sewage disposal groove 15 side.
Figure 6 shows that the impeller hub schematic diagram of I-shaped shape, be arc-shaped towards receiving two wheel hub interior angles 5 of water drum 8 side in figure, one end of this I-shaped impeller hub is cantilever position, and the other end is fixed on electric machine main shaft 23.The opposite side of impeller balance block 17 wheel hub interior angle.
In Fig. 7-10, in dehydration tube 11, diversed 10, diffusion cylinder 9 is supported in the middle part of dehydration tube 11, and flow deflector 10 connects diffusion cylinder 9 and dehydration tube 11 shell, is and is welded to connect.Rear orifice plate 30 covers on rear dirt discharge groove 16, and rear blow-off pipe 31 is welded on rear dirt discharge groove 16 side.Silk screen 34 binding agent 33 that dewaters is bonded on the shell of dehydration tube 11, flow deflector 10 and diffusion cylinder 9.The silk screen that dehydration silk screen 34 adopts stainless steel wire to weave.
Operation principle summary: the air containing dust in tunnel, is drawn into axial flow blower 2 through wind collecting unit 1, after passing through impeller blade 7, the water smoke that dust and impeller hub 6 throw away collides, enter and receive water drum 8, receive in water drum 8 and be provided with block water plate 19 and common pressure chamber 26 to collect current, effluent sewerage.Air-flow, again after the further dehydration of dehydration tube 11 that surface is stained with dehydration silk screen 34, discharges pure air.
Below operation principle is described in detail:
Mining wet precipitator water is passed into by feed pipe 14, and feed pipe 14 is divided into two towards the little outlet pipe of impeller hub 6 in exit, because caliber is comparatively large, is not that the such water outlet bore of nozzle reduces or complications, so can not block.The cambered surface of current along the central lug position of impeller hub 6 and launching.Motor 4 is the two poles of the earth asynchronous machine, and each second, rotating speed was close to 49 turns, and because impeller hub is in high-speed rotation, current are attached to rapidly on impeller hub 6, and the power that is centrifuged gets rid of into moisture film state.The profile design contacting current due to impeller hub 6 becomes circular shape, is conducive to scattering and the shaping of moisture film of current.When the dynamic balancing of impeller adjusts, carry out at the opposite side of impeller hub 6.When the radius leaving impeller hub 6 center along with current strengthens gradually, moisture film is also thinning gradually.Because rotating speed is very fast, so water-film-rate is comparatively even, after moisture film leaves impeller hub 6, then becomes radial moisture film and water smoke, become " blockade line " of dust in barrier air.
Containing the air of dust in tunnel, be drawn into axial flow blower 2 through wind collecting unit 1, by after impeller blade 7, dust-contained airflow starts to contact the moisture film and water smoke that impeller hub 6 throws away, and moisture film starts to be blown by air-flow to accelerate to airflow direction skew, and scatters.Water smoke, under the double action of centrifugal force and air-flow, is thrown into along parabolical incline direction and receives water drum 8.When dust-contained airflow is by the region that be made up of moisture film and water smoke, the dust in air-flow clashes into moisture film or water smoke, condenses, and enters receipts water drum 8 together.Because moisture film and water smoke by means of the centrifugal force that impeller hub 6 provides, very fierce with the shock strength of dust, therefore total efficiency of dust collection is higher.
Receive water drum 8 inner chamber and be dispersed with multi-disc block water plate 19, the Main Function of block water plate 19 is, when impeller hub 6 throw away the water smoke come enter receive water drum 8 time, can prevent, to stop and buffered water aerosol bomb rises and splashes, be secondly to the structural reinforcement of receipts water drum 8.Block water plate 19 and water smoke contact position are at first horn structure, to reduce the ejection of water smoke.Block water plate 19 rear portion is then provided with annular water tank 20, to hold and to collect water droplet.Block water plate 19 because of whole ring-type be vertical cube to putting, no matter above or the water droplet of side, after entering annular water tank 20, the front sewage disposal groove 15 of bottom will be flowed into, flow out deduster finally by blow-off pipe 25.The front orifice plate 24 that front sewage disposal groove 15 covers, isolates dirt discharge groove 15, makes the pressure in dirt discharge groove 15 a little less than receiving water drum 8 inner chamber.The effect of connecting plate 18 connects block water plate 19, and overall structure is strengthened, and its arranged direction is the tangential direction that impeller hub 6 throws away water smoke, also can weaken bounce-back and the splashing of water smoke.
The afterbody receiving water drum 8 is provided with common pressure chamber 26, and common pressure chamber 26 bottom communicates with front sewage disposal groove 15 inside, so the pressure of common pressure chamber 26 inside is lower than the pressure near block water plate 19, the current and air-flow that arrive receipts water drum 8 outer casing inner wall is had to the effect of attraction.Receive the air-flow in water drum 8, due to the effect of impeller blade 7, actual is that helical form is advanced.Hole on front apron 27 is only distributed in the first half district of the rising of spiral air flow.This is because spiral air flow is when halfth district of decline, and its direction and the current after collecting are same direction, and current easily flow in front sewage disposal groove 15.And in Ling Ban district, current falling direction is contrary with spiral air flow direction, especially in top area, the current after collection are very easy to flow out because of gravity again.Therefore the front apron 27 in the first half district of the rising of spiral air flow is holed, makes the low pressure of common pressure chamber 26 attract current and air-flow.When current are gentle flow to reach receive water drum 8 outer casing inner wall time, take advantage of a situation and affected by the hypobaric of common pressure chamber 26, impinging upon on front apron 29, and fall into rear tank 29, then flowing into downwards dirt discharge groove 16 afterwards.Some air-flows and current can enter common pressure chamber 26 from the hole of front apron 27, then flow down row with dust-containing water, enter front sewage disposal groove 15.The gas entered in common pressure chamber 26 can be mixed in dirt water, and discharge deduster, overflow in current, the gas of this part belongs to pure air again.
The length receiving water drum 8 is determined, with the wind speed of air-flow, the linear velocity that impeller hub 6 outer rim rotates is correlated with, namely water smoke is under the force action of centrifugal force and air-flow, the region of block water plate 19 is entered with parabolical track, main water smoke should fall into the centre position of several groups of block water plates 19, the most water smoke of guarantee---and the sewage namely containing dust enters receives water drum 8.
Air-flow is under the effect of draught fan impeller 7, advances in rotation limit, limit, after by receipts water drum 8, can contain some mists in air-flow.For making pneumatic dewatering further, spy is provided with dehydration tube 11.Flow deflector 10 in dehydration tube 11 arranges along the wind direction of air-flow, and the mist in air-flow, under effect of inertia, can hit on the dehydration silk screen 34 on flow deflector 10, dehydration tube 11 inwall and diffusion cylinder 9 surface.First mist is bonded in outside silk screen 34, flows on wire mesh bottom after gathering along silk screen 34, then flows in rear dirt discharge groove 16, flows out deduster finally by blow-off pipe 31.Be welded on the waterstop 35 of the taper type on dehydration tube 11 afterbody flange, can stop that the water droplet after collection flows out deduster, also can stop further and be got rid of at the outer field fog of eddy flow.After pneumatic dewatering, discharge from the rear shield 12 of deduster afterbody.Protection network on rear shield 12 is mainly for security reasons arranged.
In coal mine roadway, can arrange dust-proof cistern, the sewage that deduster is discharged can reclaim and enter in pond.Because deduster of the present invention directly can use sewage, so the water reclaimed precipitates slightly, just can extract out with pump, recycle.
Mining wet precipitator of the present invention, feature is: compact conformation, and efficiency of dust collection is high, and running gear is few, and maintenance is little, and stable working state is reliable.Without nozzle, but directly pass into water pipe 14.The wheel hub 6 of impeller is used to carry out atomization flow, instead of blade.Low to water quality requirement, sewage is also passable, can recycle.
Claims (5)
1. a mining wet precipitator, comprise impeller (7) and one end and be fixed on impeller hub (6) in rotating shaft, there is dehydration tube (11) at described impeller rear portion, it is characterized in that being provided with between described impeller (7) and dehydration tube (11) receiving water drum (8), the block water plate (19) of cone barrel shape is provided with in described receipts water drum, described impeller hub (6) is I-shape construction, the wheel hub interior angle (5) of described I-shape construction is arcuate shape, feed pipe (14) is provided with between receipts water drum and impeller hub, the wheel hub interior angle of the corresponding nearly rotating shaft side of delivery port of described feed pipe.
2. a kind of mining wet precipitator according to claim 1, is characterized in that described block water plate (19) is 2-6 sheet, has annular water tank (20) between each block water plate.
3. a kind of mining wet precipitator according to claim 1 and 2, it is characterized in that described receipts water drum (8) comprises malleation chamber and common pressure chamber (26), described block water plate is placed in malleation chamber, there is front apron (27) to be separated by between described malleation chamber and common pressure chamber, described front apron is provided with normal pressure lumen pore (36).
4. a kind of mining wet precipitator according to claim 1 and 2, is characterized in that described dehydration tube (11) internal fixtion has the diffusion cylinder (9) coaxial with it, the outer wall of described diffusion cylinder and the inwall of dehydration tube is fixed with the silk screen (34) that dewaters.
5. a kind of mining wet precipitator according to claim 3, is characterized in that described dehydration tube (11) internal fixtion has the diffusion cylinder (9) coaxial with it, the outer wall of described diffusion cylinder and the inwall of dehydration tube is fixed with the silk screen (34) that dewaters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510558767.0A CN105126521B (en) | 2015-09-06 | 2015-09-06 | A kind of mining wet precipitator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510558767.0A CN105126521B (en) | 2015-09-06 | 2015-09-06 | A kind of mining wet precipitator |
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| CN105126521A true CN105126521A (en) | 2015-12-09 |
| CN105126521B CN105126521B (en) | 2017-06-06 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105508090A (en) * | 2016-01-25 | 2016-04-20 | 冯殿录 | Filter |
| CN111318108A (en) * | 2018-12-14 | 2020-06-23 | 广东美的白色家电技术创新中心有限公司 | A air purifier that is used for air purification's purifier and has it |
| CN113351397A (en) * | 2021-06-04 | 2021-09-07 | 中国神华能源股份有限公司哈尔乌素露天煤矿研究院 | Fog gun device capable of automatically adjusting spraying amount along with dust concentration change |
| CN114320438A (en) * | 2021-12-31 | 2022-04-12 | 中国矿业大学 | Coaxial centrifugal wet dust removal device and control method thereof |
| CN115378185A (en) * | 2022-07-25 | 2022-11-22 | 浙江弗尔德驱动科技有限公司 | Permanent magnet synchronous motor for cooling tower |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105508090A (en) * | 2016-01-25 | 2016-04-20 | 冯殿录 | Filter |
| CN111318108A (en) * | 2018-12-14 | 2020-06-23 | 广东美的白色家电技术创新中心有限公司 | A air purifier that is used for air purification's purifier and has it |
| CN113351397A (en) * | 2021-06-04 | 2021-09-07 | 中国神华能源股份有限公司哈尔乌素露天煤矿研究院 | Fog gun device capable of automatically adjusting spraying amount along with dust concentration change |
| CN114320438A (en) * | 2021-12-31 | 2022-04-12 | 中国矿业大学 | Coaxial centrifugal wet dust removal device and control method thereof |
| CN114320438B (en) * | 2021-12-31 | 2023-02-24 | 中国矿业大学 | Coaxial centrifugal wet dust removal device and control method thereof |
| CN115378185A (en) * | 2022-07-25 | 2022-11-22 | 浙江弗尔德驱动科技有限公司 | Permanent magnet synchronous motor for cooling tower |
| CN115378185B (en) * | 2022-07-25 | 2023-05-26 | 浙江弗尔德驱动科技有限公司 | Permanent magnet synchronous motor for cooling tower |
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Effective date of registration: 20201111 Address after: 030600 No. 860 North Street, Machinery Park, West Side of 108 National Road, Huitong Industrial Park, Jinzhong Development Zone, Shanxi Demonstration Zone, Jinzhong City, Shanxi Province Patentee after: Shanxi Fenxi Huayi Industrial Co.,Ltd. Address before: 030600, No. 2, machinery Park, 108 West Road, Jinzhong Development Zone, Jinzhong, Shanxi Patentee before: SHANDONG DING RUIFENG MACHINERY MANUFACTURING Co.,Ltd. |
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