CN102234028A - Improved structure of coal ash unloading device - Google Patents
Improved structure of coal ash unloading device Download PDFInfo
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- CN102234028A CN102234028A CN2010101593468A CN201010159346A CN102234028A CN 102234028 A CN102234028 A CN 102234028A CN 2010101593468 A CN2010101593468 A CN 2010101593468A CN 201010159346 A CN201010159346 A CN 201010159346A CN 102234028 A CN102234028 A CN 102234028A
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Abstract
The invention relates to an improved structure of a coal ash unloading device, and the improved structure provided by the invention comprises an ash hopper arranged above, wherein a discharge pipe is arranged at the bottom of the ash hopper, a barrel-shaped cloth bag dust-proof sleeve is sheathed outside the downward output end of the discharge pipe, the output end of the discharge pipe is provided with a telescopic pipe, the output end of the telescopic pipe is connected with the lower end of the cloth bag dust-proof sleeve by virtue of a connecting piece, a lifting assembly is arranged on the telescopic pipe, and the output end of the telescopic pipe extends out of the lower end of the cloth bag dust-proof sleeve; and one end of a negative pressure pipe is inserted into a dust cavity, the other end of the negative pressure pipe is provided with a dust remover, the air outlet of the dust remover is provided with a dust removal fan, the ash outlet of the dust remover is connected with the discharge pipe by virtue of an ash discharge pipe, and the ash outlet is higher than the connection point of the ash discharge pipe and the discharge pipe. By adopting the improved structure of the coal ash unloading device, the dedusting effect in a working place is improved, the workload of the fan is reduced, the service life of the impeller of the dust removal fan is greatly prolonged, and the phenomenon that a dedusting pipe is blocked is eliminated.
Description
Technical field
The fly ash that the present invention relates to the power plant is handled, and relates in particular to a kind of fly ash discharging gear.
Background technology
Fly ash is the waste material that discharges behind the fired power generating unit coal fired power generation.Before fly ash is carried out processed, need utilize device for discharging will be stored in the interior fly ash entrucking of ash bucket, be transported to processing department.
Because fly ash grain is minimum, inevitably can produce dust raising phenomenon in handling process, for avoiding the dust pollution air, also will carry out dedusting during loading and unloading.A kind of existing fly ash discharging gear comprises the ash bucket that is configured in the top, ash bucket bottom configuration discharge duct, the cloth bag dust protecting cap of the outer sheathed tubular of mouth that discharge duct is downward, cloth bag dust protecting cap diameter is greater than the discharge duct diameter, form an annular airborne dust chamber between the two, cloth bag dust protecting cap upper end closed, be fixed on the discharge duct outer wall, lower ending opening, can be along the axis direction up-and-down movement, the cloth bag dust protecting cap is interior along the some awl buckets of the axial arranged coaxial of discharge duct, the awl bucket from top to bottom, increase gradually, each awl bucket upper and lower side is open end, and discharge duct has a bevelled mouth, with the awl bucket coupling of the top, between awl bucket and the awl bucket, be connected by flexible strand between awl bucket and the cloth bag dust protecting cap, cloth bag dust protecting cap lower end disposes the lifting stay cord.Negative pressure Guan Yiduan stretches in the airborne dust chamber, and an end links to each other with dedusting fan, and dedusting fan links to each other with the ash bucket top by the malleation ash feeding pipe of upwards configuration.
After the pot type bulk cement truck stops putting in place, the lifting stay cord utilizes pulley to descend, make the awl bucket, the cloth bag dust protecting cap utilizes the gravity automatic lowering, stretch into pot type bulk cement truck inlet point Deng the awl bucket of below, the lower end of cloth bag dust protecting cap near pot type bulk cement truck inlet point after, open dedusting fan earlier, ash bucket is discharging again, fly ash enters the pot type bulk cement truck through discharge duct awl bucket, and the positive negative pressure that the dust that the pot type bulk cement truck is kicked up produces by dedusting fan, utilize the depression dust-removing pipe, the malleation ash feeding pipe sends to dust to the ash bucket top, enters in the ash bucket, after bulk cement truck is filled again, close the ash bucket discharging opening successively, dedusting fan extends initial position with stay cord again.
Because dedusting fan is directly the airborne dust in the cloth bag dust protecting cap to be drawn in the ash bucket, a large amount of dust are arranged through draught fan impeller at operational process, wearing and tearing to impeller are very severe, on the other hand, unload grey operation, in the middle of awl bucket and the awl bucket very big slit is arranged when unloading ash because the ash-discharging device employing stacks formula awl bucket, by this slit, the dedusting fan ash directly sucks a large amount of finished product ashes, surpasses the dust process load of dedusting fan, thereby has further accelerated the wearing and tearing of impeller.Therefore, have only 1 year the service life of the impeller in the existing apparatus usually, and in this later stage in 1 year, because the serious wear of impeller makes that again the dust removing effects of blower fan is undesirable.In addition,, behind the damage in impeller, dedusting fan outlet air quantity is reduced, travel fatigue can't be delivered to top, ash bucket storehouse, cause dedusting malleation ash feeding pipe to stop up easily because the storehouse heights of roofs of ash bucket generally has more than 20 meter.Because the efficiency of dust collection of device is low, the phenomenon of dust from flying often takes place during loading and unloading.
Summary of the invention
Good dedusting effect when technical matters to be solved by this invention is a kind of the loading and unloading is provided, dust removing tube are difficult for stopping up and can prolong the structure-improved of the fly ash discharging gear in dedusting mechanism service life.
The present invention is achieved by the following technical solutions:
A kind of structure-improved of fly ash discharging gear, comprise the ash bucket that is configured in the top, ash bucket bottom configuration discharge duct, the cloth bag dust protecting cap of the outer sheathed tubular of mouth that discharge duct is downward, cloth bag dust protecting cap diameter forms an annular airborne dust chamber between the two greater than the discharge duct diameter, cloth bag dust protecting cap upper end closed, is fixed on the discharge duct outer wall, lower ending opening, can it is characterized in that along the axis direction up-and-down movement:
Telescopic pipe of described discharge duct mouth configuration, telescopic pipe mouth and cloth bag dust protecting cap lower end link together by attaching parts, cloth bag dust protecting cap diameter disposes lifting assembly greater than the telescopic pipe diameter on the telescopic pipe, the telescopic pipe mouth stretches out cloth bag dust protecting cap lower end;
Negative pressure Guan Yiduan stretches in the airborne dust chamber, and end configuration dust exhaustor has dedusting fan on the dust exhaustor exhaust outlet, and the dust exhaustor ash discharging hole links to each other with discharge duct by ash-unloading tube, and ash discharging hole is higher than the point of connection configuration of ash-unloading tube and discharge duct.
Wherein, between cloth bag dust protecting cap upper end and the discharge duct outer wall, between telescopic pipe and the discharge duct, between negative pressure pipe and the airborne dust chamber, be the air-tightness installation between ash-unloading tube and the discharge duct.
Telescopic pipe can be a similarly structure such as multi-joint telescoping sleeve pipe or bellows.Wherein, bellows can directly be connected with discharge duct mouth air-tightness; If multi-joint telescoping sleeve pipe, for ease of lifting assembly is installed, the multi-joint telescoping sleeve pipe generally is sleeved on the discharge duct outside, discharge duct mouth port outer wall has a circle defining flange, from the inside to the outside, the telescopic tube diameter increases gradually, dispose tightening seal washer between the innermost layer sleeve pipe of telescopic tube and the discharge duct, the innermost layer sleeve pipe can slide on the discharge duct outer wall vertically, also dispose tightening seal washer between the adjacent two layers telescopic tube, outer layer sleeve can slide on the inner layer sleeve outer wall vertically, considers on-the-spot actual needs, and telescopic tube is generally 1~5 joint.
Lifting assembly can be stay cord and the pulley that is mated, and pulley is fixed on cloth bag dust protecting cap top, and stay cord one end freedom, an end are walked around pulley and be fixed on the outer wall of telescopic pipe lower end.
After the pot type bulk cement truck stops putting in place, start lifting assembly, telescopic pipe, pot type bulk cement truck inlet point is stretched in the lower end that the cloth bag dust protecting cap utilizes gravity to drop to telescopic pipe, the lower end of cloth bag dust protecting cap near pot type bulk cement truck inlet point after, open dust exhaustor, the even discharging of ash bucket this moment, fly ash is through discharge duct, telescopic pipe enters the pot type bulk cement truck, the dust that pot type bulk cement truck discharging opening is kicked up is produced suction by the negative pressure pipe by dust exhaustor and enters dust exhaustor inside, with dust and air separation, the air exhaust to atmosphere, and dust-filtering gets off and enters discharge duct by ash-unloading tube, after bulk cement truck is filled, close the ash bucket discharging opening successively, dedusting fan utilizes lifting assembly with the cloth bag dust protecting cap again, telescopic pipe bounces back to initial position.
At existing apparatus dust removing effects difference and dedusting fan impeller defective easy to wear, the formula of stacking is unloaded the telescopic pipe that grey awl bucket changes good airproof performance into, eliminated the possibility that the finished powder coal ash is directly sucked by dedusting fan in uninstall process; Utilize dust exhaustor suction airborne dust and with dust and air separation, dust is advanced into discharge duct by under the ash discharging hole, air is by the dedusting fan exhaust to atmosphere, blower fan no dust in operational process enters, be greatly enhanced the service life of its impeller, directly be discharged into downwards on the entrucking discharge duct and filter the fly ash that gets off, eliminated the normal phenomenon of blocking of dust removing tube through dust exhaustor.
Further, dust exhaustor is preferably the cloth bag pulse dust collector, the dust-removing box that comprises upright configuration, casing upper lateral configuration card is divided into upper box and lower box with casing, the some filter bags of vertical setting-in on the card, the filter bag sack is positioned at upper box, and the bag end is positioned at lower box, and ventilation inlet is offered in the lower box bottom, ash discharging hole is offered in the bottom, and upper box is offered exhaust outlet and communicated with dedusting fan.
Further again, the even feeding of fly ash that filters out of dust exhaustor for the benefit of can be disposed feeder between dust exhaustor ash discharging hole and ash-unloading tube.
Beneficial effect of the present invention is:
1, adopt the structure-improved of this kind coal dust discharging gear after, impeller big leap ahead in service life of operation field dedusting fan was increased to present 6 years from original 1 year;
2, after the formula of stacking that will open is unloaded ash awl bucket and changed good airproof performance flexible into, reduced the workload of blower fan, dust removing effects is improved, and has eliminated the phenomenon of dust from flying;
3, by dust exhaustor filter the fly ash that gets off by manage directly be discharged on the discharge duct downwards after, eliminated the normal phenomenon of blocking of dust removing tube.
Description of drawings
Fig. 1 is the structural representation of existing coal dust discharging gear
Fig. 2 be among Fig. 1 A-A to section-drawing
Fig. 3 is the structural representation of a kind of preferred version of the present invention
Fig. 4 is that the B-B of Fig. 3 is to section-drawing
In Fig. 1~4: 1 is the bulk cement truck inlet point, and 2 is pulley, and 3 is stay cord, 4 are the awl bucket, and 5 is the cloth bag dust protecting cap, and 6 is dedusting fan, 9 is discharge duct, and 9-1 is the taper mouth, and 9-2 is a defining flange, 10 is the negative pressure pipe, and 11 is the malleation ash feeding pipe, and 12 is dust exhaustor, 12-1 is a ventilation inlet, and 12-2 is an ash discharging hole, and 12-3 is an exhaust outlet, 12-4 is a card, 12-5 is a filter bag, and 13 is feeder, and 14 is ash-unloading tube, 15 is tightening seal washer, 16 is the innermost layer sleeve pipe, and 17 is ash bucket, and 19 is outer layer sleeve, 20 is the airborne dust chamber, and 21 is attaching parts.
The specific embodiment
The invention will be further described below in conjunction with accompanying drawing.
Fig. 1~2 are existing fly ash discharging gear, comprise the ash bucket 17 that is configured in the top, ash bucket 17 bottoms configuration discharge duct 9, the cloth bag dust protecting cap 5 of the outer sheathed tubular of mouth that discharge duct 9 is downward, cloth bag dust protecting cap 5 diameters are greater than discharge duct 9 diameters, form an annular airborne dust chamber 20 between the two, cloth bag dust protecting cap 20 upper end closeds, be fixed on discharge duct 9 outer walls, lower ending opening, can be along the axis direction up-and-down movement, cloth bag dust protecting cap 5 is interior along the some awl buckets 4 of discharge duct 9 axial arranged coaxial, awl bucket 4 from top to bottom, increase gradually, discharge duct 9 has a bevelled mouth 9-1 and awl bucket 4 couplings, between the awl bucket 4, be connected by flexible strand between awl bucket 4 and the cloth bag dust protecting cap 5, cloth bag dust protecting cap 5 lower ends dispose lifting stay cord 3.Negative pressure pipe 10 1 ends stretch in the airborne dust chamber 20, and an end links to each other with dedusting fan 6, and dedusting fan 6 links to each other with ash bucket 17 tops by the malleation ash feeding pipe 11 of upwards configuration.
After the pot type bulk cement truck stops putting in place, lifting stay cord 3 utilizes pulley 2 to descend, make awl bucket 4, cloth bag dust protecting cap 5 utilizes the gravity automatic lowering, stretch into pot type bulk cement truck inlet point 1 Deng the awl bucket 4 of below, the lower end of cloth bag dust protecting cap 5 near pot type bulk cement truck inlet point 1 after, open dedusting fan 6 earlier, ash bucket 17 dischargings, fly ash is through discharge duct 9, awl bucket 4 enters the pot type bulk cement truck, and the positive negative pressure that the dust that the pot type bulk cement truck is kicked up produces by dedusting fan 6, utilize depression dust-removing pipe 10, malleation ash feeding pipe 11 sends to dust to ash bucket 17 tops, enter again in the ash bucket 17, after bulk cement truck is filled, close the discharging opening of ash bucket 17 bottoms successively, dedusting fan 6 extends initial position with stay cord 3 again.Because dedusting fan 6 is directly the airborne dust in the cloth bag dust protecting cap 5 to be drawn in the ash bucket, a large amount of dust are arranged through draught fan impeller at operational process, wearing and tearing to impeller are very severe, on the other hand, because ash-discharging device adopts awl bucket 4 formulas of stacking to unload grey operation, when unloading ash, between the awl bucket 4 very big slit is arranged, by this slit, dedusting fan 6 can directly suck a large amount of finished product ashes, surpasses the dust process load of dedusting fan, thereby has further accelerated the wearing and tearing of impeller.Simultaneously, because ash bucket 4 distance from top ground are up to more than 20 meters, behind the damage in impeller, dedusting fan 6 outlet air quantity reduce, and travel fatigue can't be delivered to top, ash bucket 17 storehouses, cause dedusting malleation ash feeding pipe 11 to stop up easily.
Fig. 3~4 are a preferred embodiment of the present invention, discharge duct 9 mouths configuration two joint telescopic tubes 16,19, innermost layer sleeve pipe 16 can slide on discharge duct 9 outer walls vertically, discharge duct 9 mouth port outer walls have a circle defining flange 9-2 to prevent that innermost layer sleeve pipe 16 is from the slippage of discharge duct lower end, configuration tightening seal washer 15 coal powder when preventing discharging leaks outside between innermost layer sleeve pipe 16 and the discharge duct 9, between the adjacent two layers telescopic tube 16,19, and outermost layer sleeve pipe 19 can slide on innermost layer sleeve pipe 16 outer walls vertically.Outer layer sleeve 19 links together with the some connection cords of cloth bag dust protecting cap 5 lower ends by radially configuration, cloth bag dust protecting cap 5 diameters are greater than outer layer sleeve 19 diameters, outer layer sleeve 19 mouths stretch out outside cloth bag dust protecting cap 5 lower ends, configuration stay cord 3 on the outer layer sleeve 19; Negative pressure pipe 10 1 ends stretch in the airborne dust chamber 20, the ventilation inlet 12-1 of one end and dust exhaustor 12 joins, have dedusting fan on the dust exhaustor exhaust outlet 12-3, dust exhaustor ash discharging hole 12-2 links to each other with discharge duct 9 by feeder 13, ash-unloading tube 14, and ash discharging hole 12-2 is higher than the point of connection configuration of ash-unloading tube 14 and discharge duct 9; Dust exhaustor 12 is the cloth bag pulse dust collector, the dust-removing box that comprises upright configuration, casing upper lateral configuration card 12-4, casing is divided into upper box and lower box, and card 12-4 goes up the some filter bag 12-5 of vertical setting-in, and filter bag 12-5 sack is positioned at upper box, the bag end, be positioned at lower box, ventilation inlet 12-1 is offered in the lower box bottom, and ash discharging hole 12-2 is offered in the bottom, and upper box is offered exhaust outlet 12-3 and communicated with dedusting fan 6.
After the pot type bulk cement truck stops putting in place, unclamp stay cord 3, telescopic tube 16,19, cloth bag dust protecting cap 5 utilizes gravity to descend, the lower end of stretching into pot type bulk cement truck inlet point 1, cloth bag dust protecting cap 5 until the lower end of outer layer sleeve 19 near pot type bulk cement truck inlet point 1 after, open dust exhaustor 12, feeder 13, ash bucket 17 even dischargings this moment, fly ash enters the pot type bulk cement truck through discharge duct 9, telescopic tube 16,19, the leak tightness of telescopic tube 16,19 is good, has eliminated the possibility that the finished powder coal ash is directly sucked by dedusting fan 6 in uninstall process.The dust that pot type bulk cement truck discharging opening 1 is kicked up is produced suction by negative pressure pipe 10 by dust exhaustor 12 and enters dust exhaustor 12 inside, and there with dust and air separation, air from filter bag 12-5 enter upper box, by dedusting fan 6 exhaust to atmospheres, blower fan 6 no dust in operational process enters, and dust-filtering gets off and enters discharge duct 10 by ash-unloading tube 14, eliminated the normal phenomenon of blocking of dust removing tube.After bulk cement truck is filled, close ash bucket 17 discharging openings, dedusting fan 6, feeder 13 successively, utilize lifting assembly that cloth bag dust protecting cap 5, telescopic tube 16,19 are stretched and be back to initial position again.
Claims (9)
1. the structure-improved of a fly ash discharging gear, comprise the ash bucket (17) that is configured in the top, ash bucket (17) bottom configuration discharge duct (9), the cloth bag dust protecting cap (5) of the outer sheathed tubular of mouth that discharge duct (9) is downward, cloth bag dust protecting cap (5) diameter forms an annular airborne dust chamber (20) between the two greater than discharge duct (9) diameter, cloth bag dust protecting cap (5) upper end closed, is fixed on discharge duct (9) outer wall, lower ending opening, can it is characterized in that along the axis direction up-and-down movement:
Telescopic pipe of described discharge duct (9) mouth configuration, telescopic pipe mouth and cloth bag dust protecting cap (5) lower end link together by attaching parts (21), cloth bag dust protecting cap (5) diameter is greater than the telescopic pipe diameter, dispose lifting assembly on the telescopic pipe, the telescopic pipe mouth stretches out cloth bag dust protecting cap (5) lower end;
Negative pressure pipe (10) one ends stretch in the airborne dust chamber (20), one end configuration dust exhaustor (12), have dedusting fan (6) on the dust exhaustor exhaust outlet (12-3), dust exhaustor ash discharging hole (12-2) links to each other with discharge duct (9) by ash-unloading tube (14), and ash discharging hole (12-2) is higher than the point of connection configuration of ash-unloading tube (14) and discharge duct (9).
2. according to the structure-improved of the described fly ash discharging gear of claim 1, it is characterized in that: described telescopic pipe is the multi-joint telescoping sleeve pipe.
3. according to the structure-improved of the described fly ash discharging gear of claim 2, it is characterized in that: described discharge duct (9) mouth port outer wall has a circle defining flange (9-2), telescopic tube is sleeved on discharge duct (9) outside, dispose tightening seal washer (15) between the innermost layer sleeve pipe (16) of telescopic tube and the discharge duct (9), innermost layer sleeve pipe (16) can slide on discharge duct (9) outer wall vertically
Dispose tightening seal washer (15) between the adjacent two layers telescopic tube, outer layer sleeve can slide on the inner layer sleeve outer wall vertically.
4. according to the structure-improved of the described fly ash discharging gear of claim 2, it is characterized in that: described telescopic tube is 1~5 joint.
5. according to the structure-improved of the described fly ash discharging gear of claim 1, it is characterized in that: described telescopic pipe is a bellows.
6. according to the structure-improved of the described fly ash discharging gear of claim 1, it is characterized in that: described dust exhaustor (12) is the cloth bag pulse dust collector, the dust-removing box that comprises upright configuration, casing upper lateral configuration card (12-4), casing is divided into upper box and lower box, card (12-4) is gone up the some filter bags of vertical setting-in (12-5), filter bag (12-5) sack is positioned at upper box, the bag end, be positioned at lower box, ventilation inlet (12-1) is offered in the lower box bottom, ash discharging hole (12-2) is offered in the bottom, and upper box is offered exhaust outlet (12-3) and communicated with dedusting fan (6).
7. according to the structure-improved of the described fly ash discharging gear of claim 1, it is characterized in that: dispose feeder (13) between described dust exhaustor ash discharging hole (12-2) and the ash-unloading tube (14).
8. according to the structure-improved of the described fly ash discharging gear of claim 1, it is characterized in that: described attaching parts (21) is some connection cords or connection chain along the telescopic pipe radial arrangement.
9. according to the structure-improved of the described fly ash discharging gear of claim 1, it is characterized in that: described lifting assembly is the pulley lanyard assembly, pulley (2) is fixed on cloth bag dust protecting cap (5) top, and stay cord (3) one end freedom, an end are walked around pulley (2) and be fixed on the outer wall of telescopic pipe lower end.
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CN2010101593468A CN102234028A (en) | 2010-04-27 | 2010-04-27 | Improved structure of coal ash unloading device |
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CN2010101593468A CN102234028A (en) | 2010-04-27 | 2010-04-27 | Improved structure of coal ash unloading device |
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CN104087321A (en) * | 2014-07-04 | 2014-10-08 | 侯思颖 | Self-dedusting device of coke oven coal tower loading truck |
CN106669289A (en) * | 2017-03-03 | 2017-05-17 | 长葛市怡盛蜂业有限公司 | Environmental protection device for discharge hole of mixing tank |
CN109078767A (en) * | 2018-09-27 | 2018-12-25 | 景德镇学院 | A kind of cyclone dust collectors device for discharging |
CN109173477A (en) * | 2018-11-16 | 2019-01-11 | 芜湖新兴新材料产业园有限公司 | Ash system is put in dedusting |
CN109534025A (en) * | 2018-12-11 | 2019-03-29 | 株洲天桥起重机股份有限公司 | A kind of automobile-used discharging dust arrester installation of roasting |
CN109552905A (en) * | 2019-01-10 | 2019-04-02 | 攀枝花攀钢集团设计研究院有限公司 | Dust unloads ash trapping integrated apparatus |
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CN104087321A (en) * | 2014-07-04 | 2014-10-08 | 侯思颖 | Self-dedusting device of coke oven coal tower loading truck |
CN104087321B (en) * | 2014-07-04 | 2017-04-12 | 侯思颖 | Self-dedusting device of coke oven coal tower loading truck |
CN106669289A (en) * | 2017-03-03 | 2017-05-17 | 长葛市怡盛蜂业有限公司 | Environmental protection device for discharge hole of mixing tank |
CN109078767A (en) * | 2018-09-27 | 2018-12-25 | 景德镇学院 | A kind of cyclone dust collectors device for discharging |
CN109078767B (en) * | 2018-09-27 | 2023-11-03 | 景德镇学院 | Cyclone dust collector discharge device |
CN109173477A (en) * | 2018-11-16 | 2019-01-11 | 芜湖新兴新材料产业园有限公司 | Ash system is put in dedusting |
CN109534025A (en) * | 2018-12-11 | 2019-03-29 | 株洲天桥起重机股份有限公司 | A kind of automobile-used discharging dust arrester installation of roasting |
CN109552909A (en) * | 2018-12-11 | 2019-04-02 | 株洲天桥起重机股份有限公司 | A kind of hose discharging dust arrester installation |
CN109592448A (en) * | 2018-12-11 | 2019-04-09 | 株洲天桥起重机股份有限公司 | A kind of scalable hard tube discharging dust arrester installation |
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Application publication date: 20111109 |