CN104452788B - The method for blocking of tailings storage backwater tapered pipeline and device - Google Patents
The method for blocking of tailings storage backwater tapered pipeline and device Download PDFInfo
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- CN104452788B CN104452788B CN201410739284.6A CN201410739284A CN104452788B CN 104452788 B CN104452788 B CN 104452788B CN 201410739284 A CN201410739284 A CN 201410739284A CN 104452788 B CN104452788 B CN 104452788B
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- water return
- return pipeline
- main stay
- stay pipe
- pipe
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/12—Restraining of underground water by damming or interrupting the passage of underground water
- E02D19/16—Restraining of underground water by damming or interrupting the passage of underground water by placing or applying sealing substances
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/003—Injection of material
Abstract
The present invention relates to a kind of method for blocking and device of tailings storage backwater tapered pipeline, it is characterized in that: find water return pipeline in the initial dam outside in ore deposit, tail storehouse, by plugging device jacking water return pipeline, in Tailings Dam, find water return pipeline to bore a vertical shaft again communicate with water return pipeline, by to filling iron ore, non-woven geotextile, gravel and concreting in water return pipeline, realize first shutoff, again in water return pipeline exit, in water return pipeline, inject cement mortar by main stay pipe, grout pipe, realize second shutoff.Its easy construction, safe and reliable, fundamentally solve the problem that difficulty of construction is large, plugging effect is difficult to guarantee that existing tailings storage backwater tapered pipe plugging technology exists, effectively implement the shutoff of tailings storage backwater tapered pipeline, prevent tailings storage backwater tapered exosmosing, thus realize the safe operation of Tailings Dam.
Description
Technical field
The present invention relates to tailings storage backwater tapered pipe plugging technology, particularly a kind of method for blocking of tailings storage backwater tapered pipeline and device.
Background technology
In Tailings Dam, each backwater tower goes out of use gradually because of the increase of service life, and the water return pipeline thus communicated with each backwater tower also will go out of use, and the seepage problem of the water return pipeline gone out of use is directly connected to the safe operation of Tailings Dam.The shutoff mode of existing conventional tailings storage backwater tapered system generally has two kinds: a kind of is rigidity shutoff, namely reinforced frame is established at the first structure of backwater tower bottom, then on reinforced frame, filter cloth, non-woven geotextile etc. is laid, and direct concreting in backward backwater tower, this type of rigidity plugging construction is relatively simple, but it is poor to carry out construction plugging effect have the construction environment of water flow in backwater tower under, generally has storehouse water to ooze out always; The second is flexible blockage, is also to establish reinforced frame at the first structure of backwater tower bottom, then on reinforced frame, lays filter cloth, non-woven geotextile etc., then injects ore in sand form or gravel etc., concreting in the most backward backwater tower.The sedimentary composition impervious barriers such as this kind of flexible blockage reason ore in sand form or gravel avoid in concreting process and occur current ditch gap, relative stiffness shutoff, plugging effect is good, but require that construction is more loaded down with trivial details meticulous, careless mistake can not be there is, if some links go wrong in construction, plugging effect is by extreme difference.
CN103741702 discloses a kind of mill tailings catch pit rigidity method for blocking, its construction part is positioned at catch pit (being equivalent to backwater tower) and outlet tunnel (being equivalent to water return pipeline) interface position, it is first at the existing concreting shutoff block of catch pit and outlet tunnel joint portion, because the catch pit degree of depth is generally more than 20 meter, and generally have water flow in well, current ditch gap is easily there is in concreting process, therefore difficulty of construction is large, quality requirement is high, if there is careless mistake in casting process, plugging effect is by extreme difference.In addition, this patent application technology and above-mentioned two kinds of shutoff modes are all for shutoff backwater tower (catch pit), are disposable shutoff, once shutoff failure, difficulty of construction is very large again.
CN203383190 discloses a kind of Tailings Dam and to overflow the plugging system of big vast tower, belong to a kind of rigidity method for blocking for water return pipeline between shutoff Xin Ta and old tower, it first carries out shutoff to old tower, namely first utilize the shutoff of shutoff steel plate in the junction of old tower bottom termination and water return pipeline, and adopt adhesive to seal to shutoff steel plate surrounding, make place's anhydrous state in water return pipeline, then concrete is poured into old tower bottom; Send into grout lines by new tower again and carry out shutoff to water return pipeline, namely in water return pipeline, interval arranges dividing plate, after grout lines being inserted the insert port on dividing plate, adopts retrusive grouting way to carry out grout sealing operation.In the process, grout lines uses C type bend pipe that mass transport is not easily blocked up, and improves shutoff efficiency, but the difficulty of construction arranging shutoff steel plate and dividing plate in water return pipeline is large, installs difficulty, is therefore difficult to ensure plugging effect.
To sum up, existing tailings storage backwater tapered pipe plugging technology is urgently improved.
Summary of the invention
The object of the invention is to provide a kind of easy construction, the method for blocking of safe and reliable tailings storage backwater tapered pipeline and device, fundamentally solve the problem that difficulty of construction is large, plugging effect is difficult to guarantee that existing tailings storage backwater tapered pipe plugging technology exists, the shutoff of the tailings storage backwater tapered pipeline of effective enforcement, prevent tailings storage backwater tapered exosmosing, thus realize the safe operation of Tailings Dam.
Technical scheme of the present invention is:
A method for blocking for tailings storage backwater tapered pipeline, is characterized in that, comprises the steps:
Step 1, first find water return pipeline in the initial dam outside in ore deposit, tail storehouse, then from the jacking of water return pipeline exit without the main stay pipe of seam steel, the tube head position of main stay pipe is welded with the umbrella chock plug with water return pipeline inwall close contact, on main stay pipe body, another interval is welded with the bracket for supporting water return pipeline inwall, umbrella chock plug is made up of steel skeleton and the filter cloth be layed on steel skeleton, main stay pipe is offering grout hole apart from umbrella chock plug 100 ~ 150m position, and arranges many grout pipes in water return pipeline exit around main stay pipe;
Step 2, in Tailings Dam, find water return pipeline, and bore a vertical shaft at distance 400 ~ 500m place, water return pipeline exit position vertically downward by ground, bore after being drilled into water return pipeline and open water return pipeline roof, steel sleeve is inserted and by steel sleeve to filling flexible-filler material in water return pipeline in vertical shaft, when observing Wei You storehouse, water return pipeline exit water and flowing out, by steel sleeve to concreting outside layer of gravel, form concrete plugged zone, realize first shutoff;
Step 3, in water return pipeline exit, in water return pipeline, inject cement mortar by main stay pipe, grout pipe, realize second shutoff;
After step 4, second shutoff complete, Seal treatment is done to water return pipeline outlet;
Step 5, in vertical shaft, steel sleeve and periphery, water return pipeline roof contact site are filled into shutoff material, realize the 3rd road shutoff;
After step 6, the 3rd road shutoff complete, Seal treatment is done to vertical shaft.
The method for blocking of above-mentioned tailings storage backwater tapered pipeline, to the concrete practice that Seal treatment is carried out in described water return pipeline outlet be: main stay pipe and grout pipe outer end are welded with supporting steel plate in advance, the connector extended to water return pipeline outlet is welded with outside supporting steel plate, in the water return pipeline outside supporting steel plate, insert the filler of asbestos, non-woven geotextile, sandstone composition, after filling up, adopt in water return pipeline exit shutoff steel plate and described connector to be welded as a whole.
The method for blocking of above-mentioned tailings storage backwater tapered pipeline, the concrete practice of described vertical shaft being carried out to Seal treatment is: backfilling cement mortar and cement quick flocculating agent in vertical shaft, and drop into many reinforcing bars wherein, when extremely distance tail Ku Kuang ground to be filled is higher than vertical shaft 1/3, add cement ore pulp to ground location.
The method for blocking of above-mentioned tailings storage backwater tapered pipeline, described main stay pipe is welded by multistage seamless steel pipe, is heading in water return pipeline process according to using length to weld piecemeal.
The method for blocking of above-mentioned tailings storage backwater tapered pipeline, the bracket on described grout pipe and main stay pipe is welded and fixed, and the length of each grout pipe is different and parallel with main stay pipe respectively.
The method for blocking of above-mentioned tailings storage backwater tapered pipeline, described flexible-filler material is iron ore, non-woven geotextile, gravel, in water return pipeline, form iron ore layer of sand, non-woven geotechnical cloth layer, layer of gravel successively.
The method for blocking of above-mentioned tailings storage backwater tapered pipeline, described shutoff material is loess, cement mortar and CHARACTERISTICS OF TAILINGS SAND.
A kind of plugging device of the tailings storage backwater tapered pipeline be applied in method for blocking described above, it is characterized in that: be made up of the multiple brackets be located on main stay pipe body without the main stay pipe of seam steel, the umbrella chock plug being located at main stay pipe front end and interval, described main stay pipe is welded by multistage seamless steel pipe, described umbrella chock plug is made up of steel skeleton and the filter cloth be layed on steel skeleton, and described main stay pipe separately offers grout hole.
The plugging device of above-mentioned tailings storage backwater tapered pipeline, is characterized in that: described steel skeleton is welded by the many reinforcing bars being arranged in circular cone umbrella, the rounded tabs that is arranged in umbrella top.
The plugging device of above-mentioned tailings storage backwater tapered pipeline, it is characterized in that: described bracket is by the concentric support ring be set on main stay pipe, around concentric support ring side face, evenly distributed and multiple curved support steel plates that middle part and concentric support boxing connect form, first bracket on described main stay pipe is positioned at inside umbrella chock plug, the curved support steel plate front end of this bracket is gathered to umbrella chock plug top and is welded and fixed, rear end utilizes pipe collar and main stay pipe to be welded and fixed, and the front and back ends of the curved support steel plate of all the other brackets utilizes pipe collar and main stay pipe to be welded and fixed respectively.
The invention has the beneficial effects as follows:
1, adopt the two pass method for blocking of top grout sealing, bottom push pipe shutoff, effectively control the seepy question of water return pipeline, relatively simple down-hole rigidity or flexible blockage mode significantly enhance safety and reliability;
When 2, carrying out plugging construction by the water return pipeline of vertical shaft outside umbrella chock plug, what adopt is flexible blockage mode, after iron ore layer of sand, non-woven geotechnical cloth layer and layer of gravel are closely knit, when water return pipeline outlet does not have current to flow out, carry out concreting again, then avoid in concreting process and occur current finedraw, occur shutoff careless mistake, ensure that plugging effect;
3, cement mortar shutoff is poured into by main stay pipe and grout pipe when water return pipeline outlet not there are flowing out, as second shutoff, in the process, bracket is together arranged in water return pipeline as its jacking with main stay pipe of support, and the skeleton finally become in plugged zone, ensured construction safety, difficulty of construction is little, and construction effect is good;
4, the 3rd shutoff of road to vertical shaft prevents vertical shaft inner sleeve and water return pipeline roof contact site to the Tailings Slurry that leaks outside, and further ensures the safe operation in ore deposit, tail storehouse.
To sum up, the applicant is proven, and the blocking technology of this tailings storage backwater tapered pipeline is advanced, it is easy to apply, significantly strengthen plugging effect, safe and reliable, leakage <10m
3/ h, avoid the generation of old water return pipeline explosion accident, economic and social benefit is remarkable.
Accompanying drawing explanation
Fig. 1 is construction schematic diagram of the present invention;
Fig. 2 is the structural representation of plugging device of the present invention;
Fig. 3 is the left view of Fig. 2;
Fig. 4 is the stereogram of plugging device of the present invention.
In figure, sequence number illustrates: 1 vertical shaft, 2 cement ore pulps, 3 cement mortar, 4 water return pipelines, 5 initial dam, 6 fillers, 7 shutoff steel plates, 8 connectors, 9 supporting steel plates, 10 grout pipes, 11 main stay pipes, 12 brackets, 1201 concentric support rings, 1202 curved support steel plates, 13 umbrella chock plugs, 1301 reinforcing bars, 1302 rounded tabs, 14 iron ore layers of sand, 15 non-woven geotechnical cloth layer, 16 layer of gravel, 17 concrete plugged zones, 18 steel sleeves, 19 grout holes, 20 cement mortar plugged zones, 21 pipe collars.
Detailed description of the invention
As shown in the figure, the method for blocking of this tailings storage backwater tapered pipeline, comprises the steps:
Step 1, first water return pipeline 4 is found in initial dam 5 outside in ore deposit, tail storehouse, then from water return pipeline 4 exit jacking without the main stay pipe 11 of seam steel, the tube head position of this main stay pipe 11 is welded with the umbrella chock plug 13 with water return pipeline 4 inwall close contact in advance, on main stay pipe 11 body, another interval is welded with the bracket 12 for supporting water return pipeline 4 inwall, umbrella chock plug 13 is made up of steel skeleton and the filter cloth (omitting in figure) be layed on steel skeleton, main stay pipe 11 is offering grout hole 19 apart from 100 ~ 150m position of umbrella chock plug 13, and arrange many grout pipes 10 in water return pipeline 4 exit around main stay pipe 11.
Wherein, main stay pipe 11, umbrella chock plug 13 and bracket 12 form the plugging device in water return pipeline 4, and main stay pipe 11 is welded by multistage seamless steel pipe, are heading in water return pipeline 4 process according to using length to weld piecemeal.The steel skeleton of umbrella chock plug 13 is welded by the many reinforcing bars 1301 being arranged in circular cone umbrella, the rounded tabs 1302 that is arranged in umbrella top, to utilize reinforcing bar 1301 amount of deflection and water return pipeline 4 inwall close contact preferably.Bracket 12 is by the concentric support ring 1201 be set on main stay pipe 11, around concentric support ring 1201 side face, evenly distributed and multiple curved support steel plates 1202 that middle part is welded with concentric support ring 1201 form, first bracket 12 on main stay pipe 11 is positioned at inside umbrella chock plug 13, curved support steel plate 1202 front end of this bracket 12 is gathered to umbrella chock plug 13 top and is welded and fixed, rear end utilizes pipe collar 21 and main stay pipe 11 to be welded and fixed, and the front and back ends of the curved support steel plate 1202 of all the other brackets 12 utilizes pipe collar 21 and main stay pipe 11 to be welded and fixed respectively.In the present embodiment, the diameter of main stay pipe 11 is Ф 159mm, the maximum activity diameter of umbrella chock plug 13 is 1.2m, grout hole 19 is 150m apart from the distance of umbrella chock plug 13, three length are adopted to be respectively the grout pipe 10 of 100m, 40m, 10m, the diameter of grout pipe 10 is Ф 50mm, grout pipe 10 is welded and fixed with the bracket 12 on main stay pipe 11, parallel with main stay pipe 11 respectively.
Step 2, water return pipeline 4 is found in Tailings Dam, and bore by ground the vertical shaft 1 that a diameter is 650mm at distance 500m place, water return pipeline 4 exit position vertically downward, bore after being drilled into water return pipeline 4 and open water return pipeline 4 roof, in vertical shaft 1 insert diameter be 450mm steel sleeve 18 and by steel sleeve 18 to filling flexible-filler material in water return pipeline 4, in the present embodiment, filling iron ore successively, non-woven geotextile, gravel, thus iron ore layer of sand 14 is formed successively outside umbrella chock plug 13, non-woven geotechnical cloth layer 15 and layer of gravel 16, when observing Wei You storehouse, water return pipeline 4 exit water and flowing out, by steel sleeve 18 to concreting outside layer of gravel 16, form concrete plugged zone 17, concrete plugged zone 17 is built to concordant with the roof of vertical shaft place water return pipeline 4, realize first shutoff.
Step 3, in water return pipeline 4 exit, in water return pipeline 4, inject cement mortar by main stay pipe 11, grout pipe 10, form cement mortar plugged zone 20, realize second shutoff.
After step 4, second shutoff complete, Seal treatment is done to water return pipeline 4 outlet, the concrete practice is: main stay pipe 11 and grout pipe 10 outer end are welded with supporting steel plate 9 in advance, be welded with outside supporting steel plate 9 and export to water return pipeline 4 connector 8 extended, in the water return pipeline 4 outside supporting steel plate 9, insert the filler 6 of asbestos, non-woven geotextile, sandstone composition, after filling up, adopt in water return pipeline 4 exit shutoff steel plate 7 and described connector 8 to be welded as a whole.
Step 5, in vertical shaft 1, steel sleeve 18 and periphery, water return pipeline 4 roof contact site are filled into shutoff material, in the present embodiment, are filled into loess, cement mortar and CHARACTERISTICS OF TAILINGS SAND successively, realize the 3rd road shutoff.
After step 6, the 3rd road shutoff complete, Seal treatment is done to vertical shaft 1, the concrete practice is: backfilling cement mortar 3 and cement quick flocculating agent in vertical shaft 1, and drop into the reinforcing bar that many diameters are Ф 4mm wherein, when extremely distance tail Ku Kuang ground to be filled is higher than vertical shaft 1/3, namely, after being fills up to distance tail Ku Kuang ground 10m, cement ore pulp 2 to ground location is added.
Claims (9)
1. a method for blocking for tailings storage backwater tapered pipeline, is characterized in that, comprises the steps:
Step 1, first find water return pipeline in the initial dam outside of Tailings Dam, then from the jacking of water return pipeline exit without the main stay pipe of seam steel, the tube head position of main stay pipe is welded with the umbrella chock plug with water return pipeline inwall close contact, on main stay pipe body, another interval is welded with the bracket for supporting water return pipeline inwall, umbrella chock plug is made up of steel skeleton and the filter cloth be layed on steel skeleton, main stay pipe is offering grout hole apart from umbrella chock plug 100 ~ 150m position, and arranges many grout pipes in water return pipeline exit around main stay pipe;
Step 2, in Tailings Dam, find water return pipeline, and bore a vertical shaft at distance 400 ~ 500m place, water return pipeline exit position vertically downward by ground, bore after being drilled into water return pipeline and open water return pipeline roof, steel sleeve is inserted and by steel sleeve to filling flexible-filler material in water return pipeline in vertical shaft, when observing Wei You storehouse, water return pipeline exit water and flowing out, by steel sleeve to concreting outside layer of gravel, form concrete plugged zone, realize first shutoff; Described flexible-filler material is iron ore, non-woven geotextile, gravel, in water return pipeline, form iron ore layer of sand, non-woven geotechnical cloth layer, layer of gravel successively;
Step 3, in water return pipeline exit, in water return pipeline, inject cement mortar by main stay pipe, grout pipe, realize second shutoff;
After step 4, second shutoff complete, Seal treatment is done to water return pipeline outlet;
Step 5, in vertical shaft, steel sleeve and periphery, water return pipeline roof contact site are filled into shutoff material, realize the 3rd road shutoff;
After step 6, the 3rd road shutoff complete, Seal treatment is done to vertical shaft.
2. the method for blocking of tailings storage backwater tapered pipeline according to claim 1, it is characterized in that: to the concrete practice that Seal treatment is carried out in described water return pipeline outlet be: main stay pipe and grout pipe outer end are welded with supporting steel plate in advance, the connector extended to water return pipeline outlet is welded with outside supporting steel plate, in the water return pipeline outside supporting steel plate, insert the filler of asbestos, non-woven geotextile, sandstone composition, after filling up, adopt in water return pipeline exit shutoff steel plate and described connector to be welded as a whole.
3. the method for blocking of tailings storage backwater tapered pipeline according to claim 1, it is characterized in that: the concrete practice of described vertical shaft being carried out to Seal treatment is: backfilling cement mortar and cement quick flocculating agent in vertical shaft, and drop into many reinforcing bars wherein, after being fills up to distance Tailings Dam ground 10m, add cement ore pulp to ground location.
4. the method for blocking of tailings storage backwater tapered pipeline according to claim 1, is characterized in that: described main stay pipe is welded by multistage seamless steel pipe, is heading in water return pipeline process according to using length to weld piecemeal.
5. the method for blocking of tailings storage backwater tapered pipeline according to claim 1, is characterized in that: the bracket on described grout pipe and main stay pipe is welded and fixed, and the length of each grout pipe is different and parallel with main stay pipe respectively.
6. the method for blocking of tailings storage backwater tapered pipeline according to claim 1, is characterized in that: described shutoff material is loess, cement mortar and CHARACTERISTICS OF TAILINGS SAND.
7. one kind is applied to the plugging device of the tailings storage backwater tapered pipeline in method for blocking as claimed in claim 1, it is characterized in that: be made up of the multiple brackets be located on main stay pipe body without the main stay pipe of seam steel, the umbrella chock plug being located at main stay pipe front end and interval, described main stay pipe is welded by multistage seamless steel pipe, described umbrella chock plug is made up of steel skeleton and the filter cloth be layed on steel skeleton, and described main stay pipe separately offers grout hole.
8. the plugging device of tailings storage backwater tapered pipeline according to claim 7, is characterized in that: described steel skeleton is welded by the many reinforcing bars being arranged in circular cone umbrella, the rounded tabs that is arranged in umbrella top.
9. the plugging device of tailings storage backwater tapered pipeline according to claim 7, it is characterized in that: described bracket is by the concentric support ring be set on main stay pipe, around concentric support ring side face, evenly distributed and multiple curved support steel plates that middle part and concentric support boxing connect form, first bracket on described main stay pipe is positioned at inside umbrella chock plug, the curved support steel plate front end of this bracket is gathered to umbrella chock plug top and is welded and fixed, rear end utilizes pipe collar and main stay pipe to be welded and fixed, before the curved support steel plate of all the other brackets, rear end utilizes pipe collar and main stay pipe to be welded and fixed respectively.
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| CN201410739284.6A CN104452788B (en) | 2014-12-08 | 2014-12-08 | The method for blocking of tailings storage backwater tapered pipeline and device |
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| CN201410739284.6A CN104452788B (en) | 2014-12-08 | 2014-12-08 | The method for blocking of tailings storage backwater tapered pipeline and device |
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| CN104452788B true CN104452788B (en) | 2016-03-30 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105179011B (en) * | 2015-09-04 | 2018-01-19 | 金建工程设计有限公司 | A kind of tunnel closure facility and its method for blocking |
| CN108374468B (en) * | 2018-03-07 | 2020-03-31 | 中钢集团马鞍山矿山研究院有限公司 | Method for blocking damage of old flood drainage system of tailing pond |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201162271Y (en) * | 2007-12-26 | 2008-12-10 | 南昌有色冶金设计研究院 | Flood-discharging and plugging apparatus of mine tailings warehouse |
| RU2442856C1 (en) * | 2010-11-01 | 2012-02-20 | Василий Петрович Ягин | Liquid industrial waste storage unit |
| CN203383190U (en) * | 2013-07-31 | 2014-01-08 | 鞍钢集团矿业公司 | Blocking system of tailing pond spilling tower |
| CN103741702A (en) * | 2014-01-16 | 2014-04-23 | 化工部长沙设计研究院 | Rigid plugging method for mine tailings pond drainage well |
| CN103742115A (en) * | 2013-12-18 | 2014-04-23 | 中国矿业大学 | Underground coal mine fracture sealing device and method |
-
2014
- 2014-12-08 CN CN201410739284.6A patent/CN104452788B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201162271Y (en) * | 2007-12-26 | 2008-12-10 | 南昌有色冶金设计研究院 | Flood-discharging and plugging apparatus of mine tailings warehouse |
| RU2442856C1 (en) * | 2010-11-01 | 2012-02-20 | Василий Петрович Ягин | Liquid industrial waste storage unit |
| CN203383190U (en) * | 2013-07-31 | 2014-01-08 | 鞍钢集团矿业公司 | Blocking system of tailing pond spilling tower |
| CN103742115A (en) * | 2013-12-18 | 2014-04-23 | 中国矿业大学 | Underground coal mine fracture sealing device and method |
| CN103741702A (en) * | 2014-01-16 | 2014-04-23 | 化工部长沙设计研究院 | Rigid plugging method for mine tailings pond drainage well |
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Address after: 114001 Anshan District, Liaoning, No. 219 Road, No. 39, Tiedong Patentee after: Anshan Iron and Steel Group Mining Co., Ltd. Address before: 114001 Anshan District, Liaoning, No. 219 Road, No. 39, Tiedong Patentee before: Anshan Iron & Steel Group Mining Co., Ltd. |