CN103879798A - Ore trough ventilation groove dust removal system - Google Patents
Ore trough ventilation groove dust removal system Download PDFInfo
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- CN103879798A CN103879798A CN201410107115.0A CN201410107115A CN103879798A CN 103879798 A CN103879798 A CN 103879798A CN 201410107115 A CN201410107115 A CN 201410107115A CN 103879798 A CN103879798 A CN 103879798A
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- ore deposit
- platform
- ventilation slot
- groove
- head
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- 238000009423 ventilation Methods 0.000 title claims abstract description 59
- 239000000428 dust Substances 0.000 title claims abstract description 35
- 239000000565 sealant Substances 0.000 claims description 24
- 238000005453 pelletization Methods 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 7
- 241000272165 Charadriidae Species 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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Abstract
The invention relates to an ore trough ventilation groove dust removal system. The ore trough ventilation groove dust removal system comprises ore troughs. A platform at the top of each ore trough is provided with a belt conveyor and a guide rail, wherein a trolley is arranged on the guide rail and provided with a hopper, and the hopper is provided with a feed pipe and two discharge pipes. The platform of the top of each ore trough is provided with two feed inlets corresponding to the two discharge pipes. Each belt conveyor comprises a head roller, a first bend roller, a second bend roller and a belt, wherein the section, wound around the first bend roller and the second bend roller, of the belt is approximately in an S shape. The head of each belt conveyor is provided with a head hopper. Each head roller is located in the corresponding head hopper. The ore trough ventilation groove dust removal system is characterized in that ventilation grooves are formed between the belt conveyors and the corresponding platforms, and the platform of the top of each ore trough and the bottom of each ventilation groove are provided with corresponding air holes. One end of each ventilation groove is connected with an external dust removal unit through a valve. The upper end of each head hopper is connected with the other end of the corresponding ventilation groove through a pipeline. By the adoption of the ore trough ventilation groove dust removal system, the dust removal effect is good, equipment investment is little, maintenance of equipment on the ore troughs is facilitated, and the ore trough ventilation groove dust removal system is suitable for removing dust in dusty gas.
Description
Technical field
The present invention relates to a kind of dust pelletizing system.Specifically, be the dust pelletizing system of sending into dedusting unit, removing the dust in gas loose unpacked material being sent into the dusty gas that produces in the groove process of ore deposit.
Background technology
At present, all know in mining industry and loose unpacked material carrier, loose unpacked material is sent into ore deposit groove and need to use band conveyor.Loose unpacked material being sent into band conveyor in the groove process of ore deposit, the dust in loose unpacked material can be kicked up and be entered in air, thereby environment is brought to pollution.For avoiding environmental pollution, just need carry out dedusting to contaminated air.Traditional dedusting method mainly contains following three kinds: the one, be connected with the concentrated dust-removing station being arranged on outside the groove of ore deposit by pipeline, to carrying out negative pressure exhausting in the groove of ore deposit.The shortcoming of this dedusting method be exhausting point to distance between emptying point, not only dust removing effects poor, take Cao Shang space, ore deposit many, be unfavorable for the overhaul of the equipments on the groove of ore deposit, and equipment investment is many; The 2nd, the common logical ventilation slot of built on stilts layout above the material hole on edge on the groove of ore deposit, travelling car on logical ventilation slot is connected with the airduct on dummy car, when dummy car is out of shape, drive the travelling car walking on logical ventilation slot, wherein, logical ventilation slot is connected with the concentrated dust-removing station outside the groove of ore deposit by pipeline.Because mobile suction opeing is difficult to sealing, logical ventilation slot is the distant of built on stilts layout, suction opeing and emptying point, make dust removing effects poor.Because logical ventilation slot need be usually placed on the groove of ore deposit, not only equipment investment is many again, and is unfavorable for the maintenance of equipment; The 3rd, dust exhaustor is arranged on flat bogie, adopt Mobile type dust-collector to carry out dedusting.Wherein, the guide rail out of shape of flat bogie and the guide rail out of shape of dummy car are same guide rail out of shape, the driver train by dummy car out of shape of Mobile type dust-collector draws, make Mobile type dust-collector loose unpacked material being discharged in the groove process of ore deposit, can produce reentrainment of dust, therefore, the dust removing effects of this dedusting method is also poor.
Summary of the invention
The problem to be solved in the present invention is to provide ventilation slot dust pelletizing system on the groove of a kind of ore deposit.Adopt this dust pelletizing system, good dedusting effect, equipment investment is few, is conducive to the overhaul of the equipments on the groove of ore deposit.
The problems referred to above that the present invention will solve are realized by following technical scheme:
On the groove of ore deposit of the present invention, ventilation slot dust pelletizing system comprises at least two ore deposit grooves that are parallel to each other, and platform is arranged at groove top, ore deposit, has belt conveyer and be convenient to the inlet point that loose unpacked material passes through on platform.On described platform, there are two guide rails that are parallel to each other, on guide rail, have dolly.On described dolly, be fixed with hopper, this hopper forms approximate Y-shaped by a feed pipe and two discharge nozzles, the hypomere of two discharge nozzle is parallel with described feed pipe, on the platform at groove top, each described ore deposit, all there are two described inlet points, in the time that described dolly moves on a described ore deposit groove, described two inlet points are corresponding with two discharge nozzles of hopper respectively.Described belt conveyer is between described two guide rails, described belt conveyer comprises and is arranged on the head cylinder of conveyor head and the first bend pulley in described feed pipe and the second bend pulley and belt under the first bend pulley, between described head cylinder, the first bend pulley and the second bend pulley, parallel, described belt is on two head cylinders, the first bend pulley and the second bend pulley, and that section of belt that makes to walk around the first bend pulley and the second bend pulley is approximate S shape.There is head funnel belt conveyer head one end, and described head cylinder is in head funnel.Be characterized in there is ventilation slot between described belt conveyer and platform, longitudinal and the described guide rail parallel of described ventilation slot, corresponding wind hole is all arranged on the platform corresponding with each described ore deposit groove and ventilation slot bottom.Described ventilation slot one end is connected with external dedusting unit by valve.The upper end of described head funnel is connected with the other end of described ventilation slot by pipeline.
Further improvement of the present invention scheme is, two side bottoms of described dolly all have roller, and described dolly is placed on guide rail and can moves along guide rail by roller.
Further improvement of the present invention scheme is, has two sealant tapes on the inlet point on described platform, and these two sealant tapes are corresponding with the path of motion of two described discharge nozzles respectively.All there are lower slewing rollers and upper slewing rollers with the longitudinally corresponding discharge nozzle of sealant tape both sides, described sealant tape one end is fixed on platform, the other end is walked around after the upper slewing rollers and lower slewing rollers of the lower slewing rollers of discharge nozzle one side and upper slewing rollers, opposite side successively, is fixed on the other end of described platform.
Further improvement of the present invention scheme is in two vertical edges of discharge nozzle sidewall at described upper slewing rollers and lower slewing rollers two ends, to be all useful on the gear roller that prevents sealant tape skew.
Further improvement of the present invention scheme is that the wind hole place of each ventilation slot bottom is provided with active plugboard, to block those wind holes that do not need on the groove top platform of the ore deposit of discharging.
Further improvement of the present invention scheme is, there is adaptor spool at the described wind hole place of ventilation slot bottom, and the cross-sectional plane of described adaptor spool is identical with described wind hole shape, and the cross-sectional plane of adaptor spool is greater than the bore in described wind hole.On the center side wall of described adaptor spool, the horizontal flat hole that active plugboard inserts is convenient in processing, and described active plugboard is moving type and inserts in horizontal flat hole.
Further improvement of the present invention scheme is between the wind hole on described adaptor spool lower end and described platform, to have rubber seal ring, to realize the sealing between the wind hole surrounding on adaptor spool lower end and described platform.
Wherein, the cross-sectional plane of described wind hole and adaptor spool is between rectangle and the two corresponding.
Further improvement project of the present invention is, there is elasticity adjusting mechanism described sealant tape one end, and described sealant tape one end is by described elasticity adjusting mechanism and be bolted on one end of platform.
Wherein, described elasticity adjusting mechanism comprises a shaft-like handle, and all there is screw thread at shaft-like handle two ends, and described shaft-like handle two ends are furnished with nut; The hand of spiral at described shaft-like handle two ends is contrary.
Take such scheme, have the following advantages:
As can be seen from the above scheme, because described ventilation slot is arranged between belt conveyer and platform, do not take space limited on the groove of ore deposit, be conducive to the overhaul of the equipments on the groove of ore deposit.
Because described ventilation slot is arranged between belt conveyer and platform, described ventilation slot is only fixed on the intermediate support leg of belt conveyer by support, and the equipment needing is few, thereby has reduced equipment investment.
Because wind hole is all arranged on the platform corresponding with each described ore deposit groove and ventilation slot bottom, make the below of described wind hole in belt conveyer, from each emptying point very close to.On inlet point due to described platform, there is sealant tape again, make sealing effectiveness of the present invention very good.
Because the upper end of head funnel is connected with the non-exit of described ventilation slot by pipeline.Like this, the dusty gas at belt conveyer belt head portion place can be taken away, thereby further improve dust removing effects.
Accompanying drawing explanation
Fig. 1 is ventilation slot dust pelletizing system structural representation on the groove of ore deposit of the present invention;
Fig. 2 is the cross-sectional schematic of removing Fig. 1 of head funnel 1 and pipeline 3;
Fig. 3 is the A-A cross-sectional schematic of Fig. 1;
Fig. 4 is the C portion enlarged diagram of Fig. 1.
The specific embodiment
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, on the groove of ore deposit of the present invention, ventilation slot dust pelletizing system comprises at least two ore deposit grooves that are parallel to each other, and the quantity of described ore deposit groove depends on the needs, and in the present embodiment, described ore deposit groove contains ore deposit groove A and ore deposit groove B.Groove top, ore deposit is provided with platform 14, is processed with and is convenient to the inlet point 18 that loose unpacked material passes through on platform 14.On platform 14, be provided with belt conveyer and two guide rails that are parallel to each other 19, on guide rail 19, be provided with dolly 13.Described dolly 13 comprises a gantry frame, and the bottom that two munnion lower ends of gantry frame are dolly 13 is all provided with roller 20 by wheel seat 10, and described dolly 13 is placed on guide rail 19 and can moves along guide rail 19 by this roller 20.
On described dolly 13, be fixed with hopper, this hopper forms approximate Y-shaped by a feed pipe 9 and two discharge nozzles 12, the hypomere of two discharge nozzle 12 is parallel with described feed pipe 9, on the platform 14 at groove top, each described ore deposit, be all processed with two described inlet points 18, the line that described two inlet points are 18 and described guide rail longitudinally perpendicular.In the time that described dolly 13 moves on the groove of described some ore deposits, described two inlet points 18 are corresponding with two discharge nozzles 12 of hopper respectively.Described belt conveyer is on the platform 14 between two guide rails, described belt conveyer comprises and is arranged on the head cylinder 2 of conveyor head and the first bend pulley 8 in described feed pipe 9 and the second bend pulley 7 and belt 4 under the first bend pulley 8, between described head cylinder 2, the first bend pulley 8 and the second bend pulley 7, parallel, described belt 4 is on two head cylinders 2, the first bend pulley 8 and the second bend pulley 7, and that section of belt 4 that makes to walk around the first bend pulley 8 and the second bend pulley 7 is approximate S shape.Described belt conveyer head one end is provided with head funnel 1, and described head cylinder 2 is in head funnel 1.
Between described belt conveyer and platform 14, be provided with ventilation slot 5, described navigation wind groove 5 is suspended in belt conveyer below by suspension bracket 21, and makes the longitudinally parallel with described guide rail 19 of described ventilation slot 5.On the platform 14 at groove top, each ore deposit, be all processed with wind hole 15, along being processed with wind hole 15 on the bottom land of described ventilation slot 5 bottoms, the wind hole 15 on the platform 14 at groove top, each ore deposit is corresponding with the corresponding wind hole 15 on the bottom land of ventilation slot 5 bottoms respectively.One end of described ventilation slot 5 is connected with external dedusting unit by valve.Pipeline 3 and described ventilation slot 5 are passed through in the upper end of described head funnel 1
anotherend is connected.
For avoiding loose unpacked material being discharged into dusty gas in the groove process chats groove of ore deposit to environment, on inlet point 18 on described platform 14, be provided with two sealant tapes 16, these two sealant tapes are corresponding with the path of motion of two described discharge nozzles 12 respectively.All by roller seat, lower slewing rollers 601 and upper slewing rollers 6 are installed with sealant tape 16 longitudinally corresponding discharge nozzle 12 both sides, described two sealant tape 16 one end are fixed on platform 14, the other end is walked around after the upper slewing rollers 6 and lower slewing rollers 601 of the lower slewing rollers 601 of discharge nozzle 12 1 sides and upper slewing rollers 6, opposite side successively, is fixed on the other end of described platform 14.
For preventing that two sealant tapes 16 are offset, in two vertical edges of discharge nozzle 12 sidewall at slewing rollers 6 and lower slewing rollers 601 two ends, be provided with the gear roller 11 for preventing that sealant tape 16 is offset on described.
For ease of when to an ore deposit groove discharging, the inner chamber of described ventilation slot 5 is only communicated with this ore deposit groove, is provided with active plugboard 22 at 15 places, wind hole of each ventilation slot 5 bottoms, to block those wind holes 15 that do not need on the ore deposit of discharging groove top platform 14.
For ease of active plugboard 22 is installed, be provided with adaptor spool 23 at 15 places, described wind hole of ventilation slot 5 bottoms, the cross-sectional plane of described adaptor spool 23 is identical with described wind hole 15 shapes, and the cross-sectional plane of adaptor spool 23 is greater than the bore in described wind hole 15.Wherein, the cross-sectional plane of described wind hole 15 and adaptor spool 23 is between rectangle and the two corresponding.On the center side wall of described adaptor spool 23, be processed with and be convenient to the horizontal flat hole that active plugboard 22 inserts, described active plugboard 22 is moving type and inserts in horizontal flat hole.
Wherein, between the wind hole 15 on described adaptor spool 23 lower ends and described platform 14, be provided with rubber seal ring 24, rubber seal ring 24 upper ends are fixed on adaptor spool 23 lower ends, between rubber seal ring 24 lower ends and wind hole 15 surroundings on platform 14, be and contact shape and coordinate, to realize the sealing between wind hole 15 surroundings on adaptor spool 23 lower ends and described platform 14.
Lax for preventing sealant tape 16, be provided with elasticity adjusting mechanism in described sealant tape 16 one end, described sealant tape one end is fixed on one end of platform 14 by described elasticity adjusting mechanism and bolt 17.
Wherein, described elasticity adjusting mechanism comprises a shaft-like handle, and all there is screw thread at shaft-like handle two ends, and described shaft-like handle two ends are furnished with nut; The hand of spiral at described shaft-like handle two ends is contrary.
Claims (10)
1. ventilation slot dust pelletizing system on the groove of ore deposit, comprises at least two ore deposit grooves that are parallel to each other, and platform (14) is arranged at groove top, ore deposit, has belt conveyer and be convenient to the inlet point (18) that loose unpacked material passes through on platform (14), on described platform (14), there are two guide rails that are parallel to each other (19), on guide rail (19), have dolly (13), described dolly is fixed with hopper on (13), this hopper forms approximate Y-shaped by a feed pipe (9) and two discharge nozzles (12), the hypomere of two discharge nozzle (12) is parallel with described feed pipe (9), on the platform (14) at groove top, each described ore deposit, all there are two described inlet points (18), in the time that described dolly (13) moves on a described ore deposit groove, described two inlet points (18) are corresponding with two discharge nozzles (12) of hopper respectively, described belt conveyer is between described two guide rails, described belt conveyer comprises and is arranged on the head cylinder (2) of conveyor head and the first bend pulley (8) in described feed pipe (9) and the second bend pulley (7) under the first bend pulley (8) and belt (4), described head cylinder (2), between the first bend pulley (8) and the second bend pulley (7), parallel, described belt (4) is around two head cylinders (2), on the first bend pulley (8) and the second bend pulley (7), and make that section of belt (4) of walking around the first bend pulley (8) and the second bend pulley (7) be approximate S shape, there is head funnel (1) belt conveyer head one end, and described head cylinder (2) is in head funnel (1),
It is characterized in that between described belt conveyer and platform (14), there is ventilation slot (5), described ventilation slot (5) longitudinally parallel with described guide rail (19), all has corresponding wind hole (15) bottom the upper and ventilation slot (5) of the platform (14) corresponding with each described ore deposit groove; Described ventilation slot (5) one end is connected with external dedusting unit by valve; The upper end of described head funnel (1) is connected with the other end of described ventilation slot (5) by pipeline (3).
2. ventilation slot dust pelletizing system on the groove of ore deposit as claimed in claim 1, is characterized in that two side bottoms of described dolly (13) all have roller (20), and described dolly (13) is placed in guide rail (19) above by roller (20) and can be mobile along guide rail (19).
3. ventilation slot dust pelletizing system on the groove of ore deposit as claimed in claim 1, it is characterized in that there are two sealant tapes (16) on the inlet point (18) on described platform (14), these two sealant tapes are corresponding with the path of motion of two described discharge nozzles (12) respectively; All there are lower slewing rollers (601) and upper slewing rollers (6) with the longitudinally corresponding discharge nozzle (12) of sealant tape (16) both sides, described sealant tape (16) one end is fixed on platform (14), the other end is walked around after the upper slewing rollers (6) and lower slewing rollers (601) of the lower slewing rollers (601) of discharge nozzle (12) one sides and upper slewing rollers (6), opposite side successively, is fixed on the other end of described platform (14).
4. ventilation slot dust pelletizing system on the groove of ore deposit as claimed in claim 3, is characterized in that being all useful in two vertical edges of discharge nozzle (12) sidewall at described upper slewing rollers (6) and lower slewing rollers (601) two ends the gear roller (11) that prevents sealant tape (16) skew.
5. ventilation slot dust pelletizing system on the groove of ore deposit as claimed in claim 1, active plugboard (22) is located to be provided with in the wind hole (15) that it is characterized in that each ventilation slot (5) bottom, to block those wind holes (15) that do not need on the ore deposit of discharging groove top platform (14).
6. ventilation slot dust pelletizing system on the groove of ore deposit as claimed in claim 5, adaptor spool (23) has been located in the described wind hole (15) that it is characterized in that ventilation slot (5) bottom, the cross-sectional plane of described adaptor spool (23) is identical with described wind hole (15) shape, and the cross-sectional plane of adaptor spool (23) is greater than the bore in described wind hole (15); On the center side wall of described adaptor spool (23), the horizontal flat hole that active plugboard (22) inserts is convenient in processing, and described active plugboard (22) is moving type and inserts in horizontal flat hole.
7. ventilation slot dust pelletizing system on the groove of ore deposit as claimed in claim 6, it is characterized in that there is rubber seal ring (24) between the wind hole (15) on described adaptor spool (23) lower end and described platform (14), to realize the sealing between wind hole (15) surrounding on adaptor spool (23) lower end and described platform (14).
8. ventilation slot dust pelletizing system on the ore deposit groove as described in claim 6 or 7, the cross-sectional plane that it is characterized in that described wind hole (15) and adaptor spool (23) is between rectangle and the two corresponding.
9. ventilation slot dust pelletizing system on the ore deposit groove as described in any one in claim 1 ~ 7, it is characterized in that there is elasticity adjusting mechanism described sealant tape (16) one end, described sealant tape one end is fixed on one end of platform (14) by described elasticity adjusting mechanism and bolt (17).
10. ventilation slot dust pelletizing system on the groove of ore deposit as claimed in claim 9, is characterized in that described elasticity adjusting mechanism comprises a shaft-like handle, and all there is screw thread at shaft-like handle two ends, and described shaft-like handle two ends are furnished with nut; The hand of spiral at described shaft-like handle two ends is contrary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410107115.0A CN103879798B (en) | 2014-03-21 | 2014-03-21 | Ventilation slot dust pelletizing system on the groove of ore deposit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410107115.0A CN103879798B (en) | 2014-03-21 | 2014-03-21 | Ventilation slot dust pelletizing system on the groove of ore deposit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103879798A true CN103879798A (en) | 2014-06-25 |
| CN103879798B CN103879798B (en) | 2016-01-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410107115.0A Active CN103879798B (en) | 2014-03-21 | 2014-03-21 | Ventilation slot dust pelletizing system on the groove of ore deposit |
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| Country | Link |
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| CN (1) | CN103879798B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08188312A (en) * | 1995-01-09 | 1996-07-23 | Nisshin Steel Co Ltd | Cutting detecting method and device for auxiliary belt and dustproof belt |
| DE29800082U1 (en) * | 1998-01-07 | 1998-03-12 | HAAS Holzzerkleinerungs- und Fördertechnik GmbH, 56472 Dreisbach | Device for filling digestion containers |
| CN2573451Y (en) * | 2002-09-26 | 2003-09-17 | 郭超 | Tank port sealing device for material tank with unloader on belt conveyer |
| CN201372132Y (en) * | 2009-02-16 | 2009-12-30 | 于文祥 | Dust removal system of travelling discharge machine |
| CN201770332U (en) * | 2010-08-25 | 2011-03-23 | 山东省淄博生建机械厂 | Heavy-duty belt press dust removing discharge vehicle |
| CN203740657U (en) * | 2014-03-21 | 2014-07-30 | 江苏全能机械工程有限公司 | Bunker ventilation-slot dust removal device |
-
2014
- 2014-03-21 CN CN201410107115.0A patent/CN103879798B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08188312A (en) * | 1995-01-09 | 1996-07-23 | Nisshin Steel Co Ltd | Cutting detecting method and device for auxiliary belt and dustproof belt |
| DE29800082U1 (en) * | 1998-01-07 | 1998-03-12 | HAAS Holzzerkleinerungs- und Fördertechnik GmbH, 56472 Dreisbach | Device for filling digestion containers |
| CN2573451Y (en) * | 2002-09-26 | 2003-09-17 | 郭超 | Tank port sealing device for material tank with unloader on belt conveyer |
| CN201372132Y (en) * | 2009-02-16 | 2009-12-30 | 于文祥 | Dust removal system of travelling discharge machine |
| CN201770332U (en) * | 2010-08-25 | 2011-03-23 | 山东省淄博生建机械厂 | Heavy-duty belt press dust removing discharge vehicle |
| CN203740657U (en) * | 2014-03-21 | 2014-07-30 | 江苏全能机械工程有限公司 | Bunker ventilation-slot dust removal device |
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| Publication number | Publication date |
|---|---|
| CN103879798B (en) | 2016-01-06 |
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Address after: The middle section of Yixing dingshuzhen 214221 Jiangsu city of Wuxi Province Tang Lu Applicant after: JIANGSU QUANNENG ELECTROMECHANICAL EQUIPMENT ENGINEERING LIMITED BY SHARE Ltd. Address before: The middle section of Yixing dingshuzhen 214221 Jiangsu city of Wuxi Province Tang Lu Applicant before: JIANGSU QUANNENG MACHINERY ENGINEERING Co.,Ltd. |
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Address after: The middle section of Yixing dingshuzhen 214221 Jiangsu city of Wuxi Province Tang Lu Patentee after: JIANGSU ZHONGDING ENVIRONMENT ENGINEERING SHARE CO.,LTD. Address before: The middle section of Yixing dingshuzhen 214221 Jiangsu city of Wuxi Province Tang Lu Patentee before: JIANGSU QUANNENG ELECTROMECHANICAL EQUIPMENT ENGINEERING LIMITED BY SHARE LTD. |
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Denomination of invention: Dust removal system for ventilation trough on mining tank Granted publication date: 20160106 Pledgee: Wuxi rural commercial bank Limited by Share Ltd. Yixing branch Pledgor: JIANGSU ZHONGDING ENVIRONMENT ENGINEERING SHARE CO.,LTD. Registration number: Y2024980014997 |
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