CN103982218B - The directed dedusting fan of a kind of mine - Google Patents
The directed dedusting fan of a kind of mine Download PDFInfo
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- CN103982218B CN103982218B CN201410234201.8A CN201410234201A CN103982218B CN 103982218 B CN103982218 B CN 103982218B CN 201410234201 A CN201410234201 A CN 201410234201A CN 103982218 B CN103982218 B CN 103982218B
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- air duct
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Abstract
The invention discloses the directed dedusting fan of a kind of mine, comprise air duct, centrifugal blower, wind sucting tube and spray air duct; One end of described air duct is communicated with wind sucting tube, and described spray air duct is set in the outside of wind sucting tube, and looping passage between described wind sucting tube and spray air duct, be provided with spiral deflector in described circular passage; The other end of described air duct is connected with the air intake of centrifugal blower, and the air outlet of described centrifugal blower is connected with described circular passage.This dedusting fan can be adjusted the distance and far away be carried out orientation suction containing high concentrate dust air, uses relatively more flexible, can carry out good assisting to dust removal by ventilation and atomizing de-dusting.
Description
Technical field
The invention belongs to mine dedusting technology field, be specifically related to a kind of mine eddy flow directional type dedusting fan.
Background technology
Coal mine evacuation working face dedusting technology, has dust removal by ventilation, atomizing de-dusting and utilizes cleaner dedusting.Dust removal by ventilation and atomizing de-dusting are the technical measures that " safety regulations in coal mine " requires, be the basic demand that coal mine evacuation working face is produced, due to varying of site work environment, these two technical measures thoroughly can not solve work plane dust overrun issues.In order to miner's occupational health health needs, colliery scene is generally all equipped with special cleaner, adopts special equipment dedusting to affect environment on coalface, more and more by scene is paid attention to.Current domestic driving face in coal mine cleaner is mainly Wet-type dust-removal fan.As typical KCS series Wet-type dust-removal fan, 18.5KW-I wet-type dust removal fan for mine adopts boss type structure design screen pack, reduces the diameter of deduster.Adopt the integrated structure design of draught fan matching and diversion section, reduce the length of deduster and alleviate the volume of deduster.But, this blower fan adopts centrifugal cyclone dedusting dehydration technique, causes work plane moisture content large; In addition, in the poor situation of coal mine dedusting water water quality, can there is the problem of blocking in nozzle.
Wet-type dust removal fan for mine is in application process, there are the following problems: 1, the inlet scoop of existing dedusting fan is circular air duct mouth, utilize suction function to suck air near air duct mouth, if air duct mouth distance is distant containing high concentrate dust air, then cannot be drawn in air duct; 2, existing Wet-type dust-removal fan, its dust removal mechanism is that dust laden air enters after in air duct, by a Water spray casing, by the wetting of fine water droplet and flushing action, is separated by dust from air.But the air being separated dust, but containing a large amount of steam, when again flowing out from portable blower, can make headwork surface humidity increase.From the air that Wet-type dust-removal fan flows out, have certain speed, fan brings kinetic energy rejection, reduces machine operation efficiency.
Integrate, it is not enough to there are above-mentioned several respects in current wet-type dust removal fan for mine, unsatisfactory in mine application situation, needs to carry out the research of Method and Technology aspect and innovation.For problem above, in conjunction with ventilating dust-removing technology state of development both at home and abroad at present, respectively from ventilation dust suction scope, to the dust removing method collected and reduce the aspects such as energy consumption and improve.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency of the prior art, a kind of mine eddy flow directional type dedusting fan is provided.This dedusting fan can be adjusted the distance and far away be carried out orientation suction containing high concentrate dust air, uses relatively more flexible, can carry out good assisting to dust removal by ventilation and atomizing de-dusting.
For achieving the above object, the technical solution used in the present invention is: the directed dedusting fan of a kind of mine, is characterized in that: comprise air duct, centrifugal blower, wind sucting tube and spray air duct; One end of described air duct is communicated with wind sucting tube, and described spray air duct is set in the outside of wind sucting tube, and looping passage between described wind sucting tube and spray air duct, be provided with the spiral deflector for making air form eddy flow in described circular passage; The other end of described air duct is connected with the air intake of centrifugal blower, and the air outlet of described centrifugal blower is connected with described circular passage.
The above-mentioned directed dedusting fan of a kind of mine, is characterized in that: the outboard end of described wind sucting tube stretches out spray air duct.
The above-mentioned directed dedusting fan of a kind of mine, is characterized in that: described wind sucting tube and that spray air duct is that outboard end is large, medial extremity is little is tubaeform.
The above-mentioned directed dedusting fan of a kind of mine, is characterized in that: described circular passage is shunk gradually to the side away from centrifugal blower.
The above-mentioned directed dedusting fan of a kind of mine, it is characterized in that: comprise air stabilizator, one end of described air stabilizator is connected with circular passage, the described other end of air stabilizator is connected with the air outlet of centrifugal blower.
The above-mentioned directed dedusting fan of a kind of mine, is characterized in that: be provided with the dust filtration device for filtering the air entering air duct in described air duct.
The above-mentioned directed dedusting fan of a kind of mine, it is characterized in that: described dust filtration device comprises roll guard, protective screening and filter membrane, described protective screening is arranged between roll guard and described filter membrane, and described filter membrane is arranged on the side of protective screening away from centrifugal blower.
The above-mentioned directed dedusting fan of a kind of mine, is characterized in that: on described air duct and the both sides being positioned at dust filtration device are provided with the piezometer tube for being connected with differential manometer.
The above-mentioned directed dedusting fan of a kind of mine, is characterized in that: described air duct comprises the first rigidity air duct section, the second rigidity air duct section, the 3rd rigidity air duct section, the first flexible air duct section and the second flexible air duct section; One end of described first flexible air duct section is connected with one end of the first rigidity air duct section, the other end of described first flexible air duct section is connected with one end of the second rigidity air duct section, and the other end of described second rigidity air duct section is connected with the medial extremity spraying air duct with wind sucting tube; The other end of described first rigidity air duct section is connected with one end of the second flexible air duct section, the other end of described second flexible air duct section is connected with one end of the 3rd rigidity air duct section, and the other end of described 3rd rigidity air duct section is connected with the air intake of centrifugal blower.
The above-mentioned directed dedusting fan of a kind of mine, is characterized in that: be provided with the joint ring for preventing the gas in circular passage from entering the second rigidity air duct section in described second rigidity air duct section.
The present invention compared with prior art has the following advantages:
1, structure of the present invention is simple, rationally novel in design.
2, the present invention forms eddy flow by spiral deflector to the positive pressure air entered in circular passage.Rotational flow air penetrates from circular passage, produce jet and form the isolation air curtain cover (being similar to cyclone) rotated dust hood is lived, the shielding action of the isolation air curtain cover namely utilizing jet air to be formed, the air of wind sucting tube front surrounding is stoped to enter suction district, the dust laden air of suction district enters wind sucting tube through the inside of described isolation air curtain cover, enter air duct subsequently, and then the far away high concentrate dust air that contains of adjusting the distance carries out orientation suction.
3, the outboard end of wind sucting tube of the present invention stretches out spray air duct.The isolation air curtain cover that the extension of wind sucting tube can be made to be sprayed circular passage is isolated in the position near wind sucting tube with the air entering wind sucting tube, avoids the isolation air curtain cover from circular passage ejection and the air turbulization disturbance entering wind sucting tube.Meanwhile, the extension of described wind sucting tube can also play certain guiding function to the isolation air curtain cover sprayed from circular passage.
4, circular passage of the present invention is shunk gradually to the side away from centrifugal blower.Make the air in circular passage can accelerate ejection like this, form larger isolation air curtain cover.
5, of the present invention to realize cost low, and result of use is good, is convenient to promote the use of.
In sum, structure of the present invention is simple, and rationally novel in design, functional reliability is high, flexible and convenient to use, directed good dedusting effect, is convenient to promote the use of.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of spiral deflector of the present invention and wind sucting tube.
Fig. 3 is the annexation schematic diagram of roll guard in dust filtration device of the present invention and protective screening.
Description of reference numerals:
1-circular passage; 2-spray air duct; 3-wind sucting tube;
4-spiral deflector; 5-air intake; 6-joint ring;
7-air intake; 8-air duct; 8-1-the first rigidity air duct section;
8-2-the second rigidity air duct section; 8-3-the 3rd rigidity air duct section; The flexible air duct section of 8-4-the first;
The flexible air duct section of 8-5-the second; 9-dust filtration device; 9-1-roll guard;
9-2-protective screening; 10-piezometer tube; 11-centrifugal blower;
12-air outlet; 13-connect air duct; 14-stabilizator air intake;
15-air stabilizator; 16-pressure maintaining valve; 17-stabilizator outlet air end;
18-tube connector.
Detailed description of the invention
The directed dedusting fan of a kind of mine as depicted in figs. 1 and 2, comprises air duct 8, centrifugal blower 11, wind sucting tube 3 and spray air duct 2; One end of described air duct 8 is communicated with wind sucting tube 3, and described spray air duct 2 is set in the outside of wind sucting tube 3, and looping passage 1 between described wind sucting tube 3 and spray air duct 2, be provided with the spiral deflector 4 for making air form eddy flow in described circular passage 1; The other end of described air duct 8 is connected with the air intake 7 of centrifugal blower 11, and the air outlet 12 of described centrifugal blower 11 is connected with described circular passage 1.This dedusting fan also comprises air stabilizator 15, the stabilizator outlet air end 17 of described air stabilizator 15 is connected with the air intake 5 of circular passage 1 by tube connector 18, and the stabilizator air intake 14 of described air stabilizator 15 is connected with the air outlet 12 of centrifugal blower 11 by connecting air duct 13.The dust filtration device 9 for filtering the air entering air duct 8 is provided with in described air duct 8.
Composition graphs 1 and Fig. 2, described spiral deflector 4 is laid around the outer wall of wind sucting tube 3, described spiral deflector 4 forms spirality air channel in circular passage 1, and then can make the air being entered circular passage 1 by air intake 5, and the guiding through spiral deflector 4 forms eddy flow.Described spiral deflector 4 can be clockwise laying, also can be counterclockwise laying.Described spiral deflector 4 can be one, can be also two, be similar to single thread or twin-feed spiral.
During use, centrifugal blower 11 operates, and produces malleation at air outlet 12 place of centrifugal blower 11, produces negative pressure at the air intake 7 of centrifugal blower 11 near the side of wind sucting tube 3.It is distinguished and admirable that the malleation that described air outlet 12 produces forms steady pressure through air stabilizator 15, enters in circular passage 1, form eddy flow after being guided by spiral deflector 4 through tube connector 18, pressure air.So, rotational flow air penetrates from circular passage 1, produce jet and form the isolation air curtain cover (being similar to cyclone) rotated dust hood is lived, the shielding action of the isolation air curtain cover namely utilizing jet air to be formed, stop the air of wind sucting tube 3 front surrounding to enter suction district.Simultaneously, because the suction function of centrifugal blower 11, orientation suction is carried out to the dust laden air of wind sucting tube 3 front remote (80cm ~ 100cm), the dust laden air of suction district enters wind sucting tube 3 through the inside of described isolation air curtain cover, enter air duct 8 subsequently, and through the filtration of dust filtration device 9, the dust in air is dammed to get off, air after filtration enters the air intake 7 of centrifugal blower 11, again forms positive pressure air.Centrifugal blower 11 so works, thus complete to wind sucting tube 3 distant containing high concentrate dust air carry out orientation aspirate.Meanwhile, air, under the effect of centrifugal blower 11, circulates, and has reclaimed the kinetic energy rejection of centrifugal blower 11 air outlet 12, has served energy-conserving action.
During use, in centrifugal blower 11 course of work, if run into pressure change, particularly during centrifugal blower 11 air outlet 12 pressure increase, additional air will be discharged by pressure maintaining valve 16 by air stabilizator 15, ensure the stability of vortex gas-flow.
As shown in Figure 1, the outboard end of described wind sucting tube 3 stretches out spray air duct 2.Preferred way is, it is 1cm that the outboard end of described wind sucting tube 3 stretches out the length of spraying air duct 2.Spray air duct 2 is stretched out by wind sucting tube 3, the isolation air curtain cover that the extension of wind sucting tube 3 can be made to be sprayed circular passage 1 is isolated in the position near wind sucting tube 3 with the air entering wind sucting tube 3, avoid the isolation air curtain cover sprayed from circular passage 1 and the air turbulization disturbance entering wind sucting tube 3, thus negative pressure loss when causing the orientation suction of wind sucting tube 3, cause the Distance Shortened of wind sucting tube 3 orientation suction, affect directed suction effect.Meanwhile, the extension of described wind sucting tube 3 can also play certain guiding function to the isolation air curtain cover sprayed from circular passage 1.
As shown in Figure 1, it is tubaeform that described wind sucting tube 3 and spray air duct 2 are that outboard end is large, medial extremity is little.Like this, on the one hand circular passage 1 can being made to be formed, that outboard end is large, medial extremity is little is tubaeform, the isolation air curtain cover sprayed from circular passage 1 is also formed, and that outboard end is large, medial extremity is little is tubaeform, and then make the area of isolation of described isolation air curtain cover become large, wind sucting tube 3 is aspirated the air of the surrounding of its central axis bearing of trend compared with large regions.On the other hand, the outboard end of wind sucting tube 3 is large mouth, can increase air inflow, and the medial extremity of wind sucting tube 3 is osculum, can increase air velocity, air inflow can either be made to increase, can accelerate intake velocity again, thus improve the efficiency of dust collection of this dedusting fan.
As shown in Figure 1, described circular passage 1 is shunk gradually to the side away from centrifugal blower 11.Make the air in circular passage 1 can accelerate ejection like this, form larger isolation air curtain cover.
Composition graphs 1 and Fig. 3, described dust filtration device 9 comprises roll guard 9-1, protective screening 9-2 and filter membrane, and described protective screening 9-2 is arranged between roll guard 9-1 and described filter membrane, and described filter membrane is arranged on the side of protective screening 9-2 away from centrifugal blower 11.In the present embodiment, the core component of filtration is filter membrane, and described protective screening 9-2 and roll guard 9-1 effectively can strengthen the installation strength of filter membrane.Described protective screening 9-2 is stainless steel cloth, and described roll guard 9-1 is for be made up of iron or other metal.In addition, described dust filtration device 9 can also be the air filtering dust-removing equipment of air filter or other form of structure.
As shown in Figure 1, on described the air duct 8 and both sides being positioned at dust filtration device 9 are provided with the piezometer tube 10 for being connected with differential manometer.In Chalk-dust filtering process, because dust filtration device 9 windage is large, pressure reduction can be produced before and after dust filtration device 9, this pressure reduction increases along with the dust thickness on filter membrane and increases, therefore connect differential manometer by piezometer tube 10, monitoring pressure reduction and dust varied in thickness rule, when the dust filtered reaches certain thickness, change dust filtration device 9.
As shown in Figure 1, described air duct 8 comprises the first rigidity air duct section 8-1, the second rigidity air duct section 8-2, the 3rd rigidity air duct section 8-3, the first flexible air duct section 8-4 and the second flexible air duct section 8-5; One end of described first flexible air duct section 8-4 is connected with one end of the first rigidity air duct section 8-1, the other end of described first flexible air duct section 8-4 is connected with one end of the second rigidity air duct section 8-2, and the other end of described second rigidity air duct section 8-2 is connected with the medial extremity spraying air duct 2 with wind sucting tube 3; The other end of described first rigidity air duct section 8-1 is connected with one end of the second flexible air duct section 8-5, the other end of described second flexible air duct section 8-5 is connected with one end of the 3rd rigidity air duct section 8-3, and the other end of described 3rd rigidity air duct section 8-3 is connected with the air intake 7 of centrifugal blower 11.By the design of each flexible air duct section, air duct 8 can be made to stretch, thus enable this dedusting fan adapt to the different installation landform of mine.
As Fig. 1, in described second rigidity air duct section 8-2, be provided with the joint ring 6 for preventing the gas in circular passage 1 from entering the second rigidity air duct section 8-2.Thus avoid the gas in circular passage 1 to enter in air duct 8, cause this dedusting fan to lose efficacy.
The above; it is only preferred embodiment of the present invention; not the present invention is imposed any restrictions, every above embodiment is done according to the technology of the present invention essence any simple modification, change and equivalent structure transformation, all still belong in the protection domain of technical solution of the present invention.
Claims (8)
1. the directed dedusting fan of mine, is characterized in that: comprise air duct (8), centrifugal blower (11), wind sucting tube (3) and spray air duct (2); One end of described air duct (8) is communicated with wind sucting tube (3), described spray air duct (2) is set in the outside of wind sucting tube (3), and looping passage (1) between described wind sucting tube (3) and spray air duct (2), be provided with the spiral deflector (4) for making air form eddy flow in described circular passage (1); The other end of described air duct (8) is connected with the air intake (7) of centrifugal blower (11), and the air outlet (12) of described centrifugal blower (11) is connected with described circular passage (1);
Comprise air stabilizator (15), one end of described air stabilizator (15) is connected with circular passage (1), and the other end of described air stabilizator (15) is connected with the air outlet (12) of centrifugal blower (11);
The dust filtration device (9) for filtering the air entering air duct (8) is provided with in described air duct (8).
2. the directed dedusting fan of a kind of mine according to claim 1, is characterized in that: the outboard end of described wind sucting tube (3) stretches out spray air duct (2).
3. the directed dedusting fan of a kind of mine according to claim 1, is characterized in that: described wind sucting tube (3) and that spray air duct (2) is that outboard end is large, medial extremity is little is tubaeform.
4. the directed dedusting fan of a kind of mine according to claim 1,2 or 3, is characterized in that: described circular passage (1) shrinks gradually to the side away from centrifugal blower (11).
5. the directed dedusting fan of a kind of mine according to claim 1, it is characterized in that: described dust filtration device (9) comprises roll guard (9-1), protective screening (9-2) and filter membrane, described protective screening (9-2) is arranged between roll guard (9-1) and described filter membrane, and described filter membrane is arranged on the side of protective screening (9-2) away from centrifugal blower (11).
6. the directed dedusting fan of a kind of mine according to claim 1, is characterized in that: the upper and both sides being positioned at dust filtration device (9) of described air duct (8) are provided with the piezometer tube (10) for being connected with differential manometer.
7. the directed dedusting fan of a kind of mine according to claim 1, is characterized in that: described air duct (8) comprises the first rigidity air duct section (8-1), the second rigidity air duct section (8-2), the 3rd rigidity air duct section (8-3), the first flexible air duct section (8-4) and the second flexible air duct section (8-5); One end of described first flexible air duct section (8-4) is connected with one end of the first rigidity air duct section (8-1), the other end of described first flexible air duct section (8-4) is connected with one end of the second rigidity air duct section (8-2), and the other end of described second rigidity air duct section (8-2) is connected with the medial extremity spraying air duct (2) with wind sucting tube (3); The other end of described first rigidity air duct section (8-1) is connected with one end of the second flexible air duct section (8-5), the other end of described second flexible air duct section (8-5) is connected with one end of the 3rd rigidity air duct section (8-3), and the described other end of the 3rd rigidity air duct section (8-3) is connected with the air intake (7) of centrifugal blower (11).
8. the directed dedusting fan of a kind of mine according to claim 7, is characterized in that: be provided with the joint ring (6) for preventing the gas in circular passage (1) from entering the second rigidity air duct section (8-2) in described second rigidity air duct section (8-2).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410234201.8A CN103982218B (en) | 2014-05-29 | 2014-05-29 | The directed dedusting fan of a kind of mine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410234201.8A CN103982218B (en) | 2014-05-29 | 2014-05-29 | The directed dedusting fan of a kind of mine |
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| Publication Number | Publication Date |
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| CN103982218A CN103982218A (en) | 2014-08-13 |
| CN103982218B true CN103982218B (en) | 2015-12-09 |
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| CN109026115B (en) * | 2018-09-17 | 2023-07-18 | 西安科技大学 | Mining negative pressure ventilation dust collector |
| CN111894654B (en) * | 2020-06-22 | 2022-08-09 | 山西地宝能源有限公司 | Device for treating gas at upper corner of coal mine |
| CN113565500A (en) * | 2021-07-01 | 2021-10-29 | 中国煤炭科工集团太原研究院有限公司 | Intelligent control dust removal system for coal mine and control method thereof |
| CN113374520A (en) * | 2021-07-26 | 2021-09-10 | 中煤科工集团重庆研究院有限公司 | Guniting comprehensive control dust removal system and automatic regulation and control mode thereof |
| CN115013027B (en) * | 2022-06-17 | 2023-02-03 | 华能云南滇东能源有限责任公司 | Ventilation equipment and method for coal mining mine |
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Granted publication date: 20151209 Termination date: 20160529 |