CN217470721U - Device for closed-warehouse reclamation of large pit-type tailing warehouse - Google Patents
Device for closed-warehouse reclamation of large pit-type tailing warehouse Download PDFInfo
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- CN217470721U CN217470721U CN202221427027.5U CN202221427027U CN217470721U CN 217470721 U CN217470721 U CN 217470721U CN 202221427027 U CN202221427027 U CN 202221427027U CN 217470721 U CN217470721 U CN 217470721U
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Abstract
The utility model discloses a device that is used for large-scale hole formula tailing storehouse to close storehouse reclamation, including the tailing hole and set up at the peripheral reclamation device in the tailing hole, the reclamation device includes: the stirring part is used for stirring loam, tail water and grass seeds and is arranged on one side of the tailing pit; the first soil covering part comprises a mud discharging pipe, the mud discharging pipe is arranged in an annular structure, the mud discharging pipe is arranged around a top pithead of the tailing pit, a mud discharging mechanism is arranged on the mud discharging pipe, the mud discharging mechanism is communicated with the mud discharging pipe, and the mud discharging pipe is communicated with the stirring part; the second earthing part comprises a platform mechanism, one end of the platform mechanism is fixedly connected with the edge of the tailing pit, the other end of the platform mechanism is located at the center of the tailing pit, a discharging mechanism is arranged at the top of the platform mechanism, and the discharging mechanism is communicated with the mud discharge pipe.
Description
Technical Field
The utility model relates to a tailing storehouse reclamation engineering technical field especially relates to a device that is used for large-scale hole formula tailing storehouse reclamation.
Background
The tailings pond is one of three major controlled projects of a mine, is an important production facility of a mine enterprise, is mainly used for storing tailings or other industrial waste residues discharged after metal and nonmetal mines are sorted by ores, and is a necessary facility for maintaining normal production of the mine. And (4) closing the tailings pond which runs to the designed final elevation or does not carry out tailing discharge operation, wherein the content of the closed tailings pond comprises the treatment of the beach surface of the tailings pond. The beach surface treatment is to prevent the beach surface of the closed tailings pond from weathering to generate dust to cause air pollution, and the main engineering is to cover the beach surface of the tailings pond with soil and plant vegetation.
The types of the tailing pond mainly comprise a valley type tailing pond, a mountain-side type tailing pond, a flat-land type tailing pond and a river-cut type tailing pond, under the common condition, accumulated water in the tailing pond is firstly discharged in the process of implementing closed pond beach surface treatment, and after the beach surface has certain bearing capacity, loam is transported to the pond by using a vehicle for beach surface earthing and greening. In recent years, in order to realize comprehensive treatment of an open pit after closing, the open pit is taken into consideration to have the advantage of larger storage capacity, no artificial damming is needed, the cost is low, the operation is convenient, and meanwhile, the problem of land resource utilization is solved, so that the open pit is used as a tailing discharge place.
The open pit is used as a tailing discharge place, and the structural characteristics of the huge depression space of the open pit determine that the pit tailing pond is different from a common tailing pond, which is mainly characterized in that the pit tailing pond has no dry beach, and tail water completely submerges tailings, so that after the discharge of the tailings in the pit tailing pond is stopped, if a conventional closed tailing pond reclamation method (a method of completely pumping overlying water and then carrying out soil covering and greening by using vehicle to transport loam after the beach face is consolidated and has bearing capacity) is adopted for closed pit tailing pond reclamation, the following problems can be faced:
(1) the closed storage period is long: the shoal surface of the pit-type tailing pond is submerged by water all the year round if the bearing capacity of the shoal surface meets the requirement of vehicle walking, all water in the pond is pumped out, and the shoal surface is exposed to natural wind after being pumped out, so that the process needs a long time.
(2) The construction cost is high: the large tailing pit occupies a large area, and the conventional vehicle soil covering method is adopted to complete soil covering work on all beach surfaces in the pit, so that more manpower, vehicles, scraper and other equipment are required, and the cost is high.
(3) The environmental pollution is serious: the conventional method for closing the tailings pond adopts vehicles to convey loam, and because the engineering quantity is large, the transportation vehicles finish the work of closing the tailings pond to generate a large amount of tail gas to seriously pollute the atmosphere.
(4) The safety of the disposal method is poor: the drainage consolidation period of the tailings in the open pit is long, the consolidation effect cannot be completely guaranteed, the frequent back-and-forth rolling of the beach surface in the pit by vehicles is easy to cause liquefaction of the local beach surface, and the problems of vehicle damage, equipment overturning and the like are easy to occur.
(5) Difficulty in construction organization management: the pit type tailing pond adopts vehicles to cover soil and close the pond for reclamation, so that more personnel and engineering vehicles are needed, and the organization and management of field construction are difficult.
Therefore, there is a need for a device for large pit tailings pond closed reclamation to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a device that is used for large-scale pit type tailing storehouse closed reclamation to solve the problem that prior art exists.
In order to achieve the above purpose, the utility model provides a following scheme: the utility model provides a device that is used for large-scale pit type tailing storehouse closed warehouse to reclaim, including the tailing hole and set up at the peripheral reclamation device in tailing hole, the reclamation device includes:
the stirring part is used for stirring loam, tail water and grass seeds and is arranged on one side of the tailing pit;
the first soil covering part comprises a sludge discharge pipe, the sludge discharge pipe is arranged in an annular structure, the sludge discharge pipe is arranged around a pithead at the top of the tailing pit, a sludge discharge mechanism is arranged on the sludge discharge pipe, the sludge discharge mechanism is communicated with the sludge discharge pipe, and the sludge discharge pipe is communicated with the stirring part;
the second soil covering part comprises a platform mechanism, one end of the platform mechanism is fixedly connected with the edge of the tailing pit, the other end of the platform mechanism is located at the center of the tailing pit, a discharging mechanism is arranged at the top of the platform mechanism, and the discharging mechanism is communicated with the sludge discharge pipe.
Preferably, the stirring part comprises a stirring tank and a slurry tank, the stirring tank and the slurry tank are arranged on one side of the tailing pit, the stirring tank is communicated with the slurry tank through a pipeline, a slurry pump is arranged in the slurry tank, the input end of the slurry pump is communicated with the inner cavity of the slurry tank, and the output end of the slurry pump is communicated with the slurry discharge pipe through a pipeline; and a stirrer is erected at the top in the stirring tank.
Preferably, the mud discharging mechanism comprises a plurality of mud discharging pipes, one ends of the mud discharging pipes are communicated with the inner wall of the mud discharging pipe at equal intervals, and the other ends of the mud discharging pipes are located above the edge of the inner cavity of the tailing pit.
Preferably, the platform mechanism comprises a working platform, a floating assembly is arranged at the bottom of the working platform, a fence is fixedly connected to the edge of the top surface of the working platform, the discharging mechanism is arranged at the top of the working platform, and fixing assemblies are fixedly connected to the two sides of the working platform respectively.
Preferably, the floating assembly comprises a plurality of buoys which are fixedly connected to the bottom surface of the working platform at equal intervals.
Preferably, the discharge assembly comprises a discharge pipe, one end of the discharge pipe is communicated with the mud discharge pipe, the other end of the discharge pipe is located at the end of the working platform and at the center of the tailing pit, and the pipe wall of the discharge pipe is fixedly connected with the top surface of the working platform.
Preferably, the fixed subassembly includes a plurality of anchor piers, the anchor pier sets up the mine pit top is domatic, the anchor pier with work platform's one end side is passed through wire rope and is connected, the equidistant rigid coupling of work platform opposite side has the one end of a plurality of anchor chain that sink, the other end rigid coupling of anchor chain has anchor hook that sink.
A method for closed-pit reclamation of large pit-type tailing ponds comprises the following steps:
firstly, building a reclamation device at the periphery of a tailing pit;
continuously adding loam, tail water and grass seeds into the stirring pool, fully stirring by using an erected stirrer to form reclamation slurry, and introducing the stirred reclamation slurry into the slurry pool through a pipeline at the bottom;
thirdly, the reclamation slurry introduced into the slurry pond is introduced into a slurry discharge pipe through a slurry pump, and then soil covering is respectively carried out from the edge and the center of the tailing pit through a sludge discharge pipe and a discharge pipe;
and step four, after the soil covering layer is finished, removing the reclamation device, and discharging the accumulated water at the top of the tailing pit.
Preferably, the mud discharging pipe and the discharging pipe are all made of PVC pipes, the outer diameters of the mud discharging pipe and the discharging pipe are 300-500 mm, and the wall thicknesses of the mud discharging pipe and the discharging pipe are 10.0-30.0 mm; the outer diameter of the sludge discharge pipe is 150-200 mm, and the wall thickness is 10.0-30.0 mm.
Preferably, the distance between every two adjacent sludge discharge pipes is 10-20 m.
The utility model discloses a following technological effect: the utility model provides a new method for large-scale pit tailing warehouse closed reclamation aiming at the difficult problems of strong soil squeezing effect, long warehouse closed period, serious environmental pollution, high operation safety risk, high construction cost, difficult construction organization management and the like in the prior traditional closed warehouse reclamation technology of the tailing warehouse, which is applied to the large-scale pit tailing warehouse closed reclamation, realizes low cost, convenience and high efficiency soil covering while ensuring the closed warehouse process of the large-scale pit tailing warehouse and meeting the requirements of safety and environmental protection after final reclamation, selects a proper position to establish a stirring part according to the surrounding geographical environment of the pit tailing warehouse, transportation, line erection and the distance between the transportation and a tailing pit, mixes loam, tail water and grass seeds, injects the mixed mud into a mud discharge pipe through a connecting pipeline to carry out soil covering, simultaneously sets a first soil covering part and a second soil covering part, simultaneously carries out soil covering on the middle part and the periphery of the tailing pit, can ensure the complete coverage of the tailing beach surface. The utility model discloses a tailing hole + tailing hole central authorities carry mud all around and carry out the earthing, have effectively avoided the crowded soil effect of vehicle earthing process production, and the earthing effect is better. The utility model discloses need not to carry out the pump drainage to the hydrops in the hole earlier stage, will hole the hydrops drainage through the original drainage system in tailing hole after the earthing is accomplished, avoided engineering drainage earlier stage + beach face consolidation process, greatly shortened closed storehouse reclamation engineering cycle. The utility model discloses a mud is carried out the earthing to the underwater beach face of tailing hole from the flowing mode, has reduced the input of a large amount of manpowers and vehicles, and is with low costs, and project engineering organization management is simple. The utility model discloses saved the process of haulage vehicle earthing in the hole, effectively avoided occurence of failure such as vehicle injury, equipment toppling in the hole. The utility model discloses the overall process is gone on under wet-type environment, has effectively avoided the production of raise dust, environmental protection.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
fig. 3 is a schematic structural view of the platform mechanism of the present invention;
FIG. 4 is a schematic cross-sectional view of the utility model after earth is filled in the pit;
wherein, 1, a tailing pit; 2. a stirring tank; 3. a mud pit; 4. a mud pipe is arranged; 5. a slurry pump; 6. a sludge discharge pipe; 7. a working platform; 8. a fence; 9. a float bowl; 10. a discharge pipe; 11. anchoring the pier; 12. a wire rope; 13. sinking and anchoring the anchor chain; 14. sinking an anchor hook; 15. and covering a soil layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
Referring to fig. 1-4, the utility model provides a device that is used for large-scale hole formula tailing storehouse to close storehouse rehabilitation, including tailing hole 1 and the reclamation device of setting at tailing hole 1 periphery, the reclamation device includes:
the stirring part is used for stirring loam, tail water and grass seeds and is arranged on one side of the tailing pit 1;
the first soil covering part comprises a mud discharging pipe 4, the mud discharging pipe 4 is arranged in an annular structure, the mud discharging pipe 4 is arranged around a top pithead of the tailing pit 1, a mud discharging mechanism is arranged on the mud discharging pipe 4 and communicated with the mud discharging pipe 4, and the mud discharging pipe 4 is communicated with the stirring part;
and the second soil covering part comprises a platform mechanism, one end of the platform mechanism is fixedly connected with the edge of the tailing pit 1, the other end of the platform mechanism is positioned in the center of the tailing pit 1, a discharge mechanism is arranged at the top of the platform mechanism, and the discharge mechanism is communicated with the sludge discharge pipe 4.
The utility model provides a new method for large pit tailing pond closed reclamation aiming at the problems of strong soil squeezing effect, long closed pond period, serious environmental pollution, high operation safety risk, high construction cost, difficult construction organization management and the like in the prior traditional closed pond reclamation technology, which is applied to the large pit tailing pond closed reclamation, realizes low cost, convenience and high efficiency earthing while ensuring that the requirements of safety and environmental protection are met in the closed pond process of the large pit tailing pond and after final reclamation, selects a proper position to establish a stirring part according to the surrounding geographical environment of the pit tailing pond, transportation, line erection and the distance between the line and a tailing pit 1, mixes loam, tail water and grass seeds, injects the mixed mud into a mud discharge pipe 4 through a connecting pipeline to carry out earthing, simultaneously sets up a first earthing part and a second earthing part, simultaneously carries out earthing simultaneously on the middle part and the periphery of the tailing pit 1, can ensure the full coverage of the tailing beach surface. The utility model discloses a tailing hole 1 + 1 central authorities in tailing hole carry mud all around and carry out the earthing, have effectively avoided the crowded soil effect of vehicle earthing process production, and the earthing effect is better. The utility model discloses need not to carry out the pump drainage to the ponding in the hole earlier stage, will hole the waterlogging to drain through 1 original drainage system in tailing hole after the earthing is accomplished, avoided engineering drainage in earlier stage + beach face consolidation process, greatly shortened the reclamation engineering cycle of closing storehouse. The utility model discloses a mud is carried out the earthing to tailing hole 1 underwater beach face from the flowing mode, has reduced the input of a large amount of manpowers and vehicles, and is with low costs, and project engineering organization management is simple. The utility model discloses saved the process of haulage vehicle earthing in the hole, effectively avoided occurence of failure such as vehicle injury, equipment toppling in the hole. The utility model discloses the overall process is gone on under wet-type environment, has effectively avoided the production of raise dust, environmental protection.
According to the further optimization scheme, the stirring part comprises a stirring tank 2 and a slurry tank 3, the stirring tank 2 and the slurry tank 3 are arranged on one side of the tailing pit 1, the stirring tank 2 is communicated with the slurry tank 3 through a pipeline, a slurry pump 5 is arranged in the slurry tank 3, the input end of the slurry pump 5 is communicated with the inner cavity of the slurry tank 3, and the output end of the slurry pump 5 is communicated with a slurry discharge pipe 4 through a pipeline; the top in the stirring pool 2 is provided with a stirrer.
The utility model discloses a 5 pump sending of slush pump are put mud pipe 4 and are carried the earthing, and the whole process of closed storehouse reclamation is green more, low carbon, and this process is environmental protection more. The crossbeam is erected at the top of the stirring tank 2, and the stirrer is arranged at the top of the crossbeam to stir the slurry in the stirring tank 2, which is a conventional technology in the engineering field and is not shown in the attached drawings of the specification, so that redundant description is omitted. According to the surrounding geographical environment of the pit-type tailing pond, transportation, line erection and distance from the tailing pit 1, a stirring pond 2 and a slurry pond 3 are built at proper positions.
Further optimization scheme, mud discharging mechanism includes a plurality of mud pipes 6, the one end equidistant of a plurality of mud pipes 6 with put 4 inner walls of mud pipe intercommunication, the other end of a plurality of mud pipes 6 is located 1 inner chamber edge top in the tailing hole.
The mud pipe 6 that sets up can follow tailing hole 1 and carry out the earthing all around, makes the earthing more comprehensive.
Further optimization scheme, platform mechanism includes work platform 7, and work platform 7's bottom is provided with floating assembly, and 7 top surface edges rigid couplings of work platform have rail 8, and the emission mechanism sets up at work platform 7's top, and 7 both sides of work platform are the rigid coupling respectively has fixed subassembly.
In a further optimized scheme, the floating assembly comprises a plurality of buoys 9, and the buoys 9 are fixedly connected to the bottom surface of the working platform 7 at equal intervals.
In a further optimized scheme, the discharge assembly comprises a discharge pipe 10, one end of the discharge pipe 10 is communicated with the mud discharge pipe 4, the other end of the discharge pipe 10 is located at the end part of the working platform 7 and is located at the center of the tailing pit 1, and the pipe wall of the discharge pipe 10 is fixedly connected with the top surface of the working platform 7.
Further optimize the scheme, fixed subassembly includes a plurality of anchor piers 11, and anchor pier 11 sets up domaticly at 1 top in the tailing pit, and anchor pier 11 passes through wire rope 12 with work platform 7's one end side to be connected, and the equidistant rigid coupling of work platform 7 opposite side has the one end of a plurality of anchor chain 13 that sink, and the other end rigid coupling of anchor chain 13 has anchor hook 14 that sink.
The width of the working platform 7 is 2-3m, so that the installation of the discharge pipe 10 and the passing requirements of inspectors can be met; the working platform 7 is fixed at the side slope by adopting a concrete anchoring pier 11 and a steel wire rope 12, one end of the steel wire rope 12 is connected with the working platform 7, the other end of the steel wire rope is connected with the anchoring pier 11 on the bank slope, and an anchor sinking chain 13 and an anchor sinking anchor hook 14 are arranged on two sides of the platform to prevent the platform from moving left and right.
The loam in the reclamation slurry accounts for 10% -15% of the comprehensive proportion of the loam and tail water.
A method for closed-pit reclamation of large pit-type tailing ponds comprises the following steps:
firstly, building a reclamation device around a tailing pit 1;
continuously adding loam, tail water and grass seeds into the stirring pool 2, fully stirring by an erected stirrer to form reclamation slurry, and introducing the stirred reclamation slurry into the slurry pool 3 through a pipeline at the bottom;
thirdly, the reclaimed slurry led into the slurry pond 3 is led into a slurry discharge pipe 4 through a slurry pump 5, and then earth covering is respectively carried out from the edge and the center of the tailing pit 1 through a slurry discharge pipe 6 and a discharge pipe 10;
and step four, after the soil covering layer 15 is finished, removing the reclamation device, and discharging accumulated water on the top of the tailing pit 1.
Keeping the continuous supply of the mixed slurry of the loam and the grass seeds, starting a slurry pump 5, and covering soil until the underwater soil covering thickness reaches 30.0-50.0 cm; and after the soil covering is finished, the soil covering equipment is dismantled, accumulated water in the tailings pond is emptied through a pit type tailing pond drainage system, and closed tailing pond reclamation is finished after the soil covered beach surface is solidified with long grass.
According to a further optimized scheme, the sludge discharge pipe 4, the sludge discharge pipe 6 and the discharge pipe 10 are all made of PVC pipes, the outer diameter of the sludge discharge pipe 4 and the outer diameter of the discharge pipe 10 are 300-500 mm, and the wall thickness of the sludge discharge pipe 4 and the wall thickness of the discharge pipe 10 are 10.0-30.0 mm; the outer diameter of the sludge discharge pipe 6 is 150-200 mm, and the wall thickness is 10.0-30.0 mm.
Further optimizing the scheme, the distance between the adjacent sludge discharge pipes 6 is 10-20 m.
The utility model discloses used for the closed reservoir reclamation of certain large-scale pot-type tailing storehouse in the comprehensive control of tailing storehouse along the Yangtze river, enterprise uses the utility model discloses carry out closed reservoir reclamation, the closed reservoir time shortens by a wide margin, the earthing is effectual, the construction of closed reservoir reclamation overall process is reasonable orderly, there is not raise dust and tail gas pollution in the earthing overall process in the hole, accomplish closed reservoir reclamation lower carbon environmental protection simultaneously; the security of operation obtains the guarantee simultaneously, does not take place accidents such as vehicle injury, equipment topple, the utility model discloses help enterprise has realized the closed storehouse reclamation of safety, high efficiency, low cost, environmental protection, has gained good technological effect.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description of the present invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
The above-mentioned embodiments are only described in the preferred embodiments of the present invention, but not limited to the scope of the present invention, and various modifications and improvements made by the technical solutions of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the design spirit of the present invention.
Claims (7)
1. A device that is used for large-scale pit type tailing storehouse closed warehouse reclamation, includes tailing hole (1) and sets up the reclamation device in tailing hole (1) periphery, its characterized in that, the reclamation device includes:
the stirring part is used for stirring loam, tail water and grass seeds and is arranged on one side of the tailing pit (1);
the first soil covering part comprises a mud discharging pipe (4), the mud discharging pipe (4) is arranged to be of an annular structure, the mud discharging pipe (4) is arranged around a top pithead of the tailing pit (1), a mud discharging mechanism is arranged on the mud discharging pipe (4), the mud discharging mechanism is communicated with the mud discharging pipe (4), and the mud discharging pipe (4) is communicated with the stirring part;
the second earthing part comprises a platform mechanism, one end of the platform mechanism is fixedly connected with the edge of the tailing pit (1), the other end of the platform mechanism is located at the center of the tailing pit (1), a discharging mechanism is arranged at the top of the platform mechanism, and the discharging mechanism is communicated with the mud discharge pipe (4).
2. The device for large pit tailings pond closed reclamation according to claim 1, wherein: the stirring part comprises a stirring tank (2) and a slurry tank (3), the stirring tank (2) and the slurry tank (3) are arranged on one side of the tailing pit (1), the stirring tank (2) is communicated with the slurry tank (3) through a pipeline, a slurry pump (5) is arranged in the slurry tank (3), the input end of the slurry pump (5) is communicated with the inner cavity of the slurry tank (3), and the output end of the slurry pump (5) is communicated with the slurry discharge pipe (4) through a pipeline; and a stirrer is erected at the top in the stirring pool (2).
3. The device for large pit tailings pond closed reclamation according to claim 2, wherein: the sludge discharge mechanism comprises a plurality of sludge discharge pipes (6), and is characterized in that one ends of the sludge discharge pipes (6) are communicated with the inner wall of the sludge discharge pipe (4) at equal intervals, and the other ends of the sludge discharge pipes (6) are located above the edge of the inner cavity of the tailing pit (1).
4. The device for large pit tailings pond closed reclamation according to claim 3, wherein: the platform mechanism comprises a working platform (7), a floating assembly is arranged at the bottom of the working platform (7), a fence (8) is fixedly connected to the edge of the top surface of the working platform (7), the discharging mechanism is arranged at the top of the working platform (7), and fixing assemblies are fixedly connected to the two sides of the working platform (7) respectively.
5. The device for large pit tailings pond closed reclamation according to claim 4, wherein: the floating assembly comprises a plurality of buoys (9), and the buoys (9) are fixedly connected to the bottom surface of the working platform (7) at equal intervals.
6. The device for large pit tailings pond closed reclamation according to claim 5, wherein: the discharge assembly comprises a discharge pipe (10), one end of the discharge pipe (10) is communicated with the mud discharge pipe (4), the other end of the discharge pipe (10) is located at the end part of the working platform (7) and located at the center of the tailing pit (1), and the pipe wall of the discharge pipe (10) is fixedly connected with the top surface of the working platform (7).
7. The device for large pit tailings pond closed reclamation according to claim 6, wherein: the fixed subassembly includes a plurality of anchor mounds (11), anchor mound (11) set up the tailing hole (1) top is domatic, anchor mound (11) with the one end side of work platform (7) is passed through wire rope (12) and is connected, work platform (7) opposite side equidistant rigid coupling has the one end of a plurality of anchor chain (13), the other end rigid coupling of anchor chain (13) has anchor hook (14).
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| CN202221427027.5U CN217470721U (en) | 2022-06-09 | 2022-06-09 | Device for closed-warehouse reclamation of large pit-type tailing warehouse |
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| CN202221427027.5U CN217470721U (en) | 2022-06-09 | 2022-06-09 | Device for closed-warehouse reclamation of large pit-type tailing warehouse |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114846964A (en) * | 2022-06-09 | 2022-08-05 | 中钢集团马鞍山矿山研究总院股份有限公司 | Device and method for closed-pit reclamation of large pit-type tailing pond |
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2022
- 2022-06-09 CN CN202221427027.5U patent/CN217470721U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114846964A (en) * | 2022-06-09 | 2022-08-05 | 中钢集团马鞍山矿山研究总院股份有限公司 | Device and method for closed-pit reclamation of large pit-type tailing pond |
| CN114846964B (en) * | 2022-06-09 | 2023-10-20 | 中钢集团马鞍山矿山研究总院股份有限公司 | Method for reclamation of closed tailings pond of large pit type |
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