CN114182683A - Full-tailing damming method of damming machine - Google Patents
Full-tailing damming method of damming machine Download PDFInfo
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/10—Dams; Dykes; Sluice ways or other structures for dykes, dams, or the like
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/02—Receptacles, e.g. flower-pots or boxes; Glasses for cultivating flowers
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
- E01C3/06—Methods or arrangements for protecting foundations from destructive influences of moisture, frost or vibration
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/12—Revetment of banks, dams, watercourses, or the like, e.g. the sea-floor
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/16—Sealings or joints
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B5/00—Artificial water canals, e.g. irrigation canals
- E02B5/02—Making or lining canals
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/10—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/11—Hard structures, e.g. dams, dykes or breakwaters
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
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Abstract
The invention provides a full-tailing damming method of a damming machine, and relates to the technical field of damming processes of mine tailing warehouses. Which comprises the following steps: digging a dam slope drainage ditch; laying an anti-leakage layer, and placing a film bag above the anti-leakage layer; the construction method comprises the following steps of piling a construction platform, namely opening an ore pulp conveyor and a damming machine on the construction platform, communicating the pulp discharge pipe, the ore pulp conveyor and the damming machine, wherein a tail flow pulp discharge pipe of the damming machine is communicated with a filling port of a film bag; the dam building machine advances to build a dam on the construction platform along the dam building direction, dry ore sand is used for building the dam after the rotational flow of the dam building machine, high-moisture-content fine ore mortar is injected into the film bag from the injection port, and the dam building machine returns to the heightened construction platform after the dam is built to a specified length; and after one layer is built, laying a second layer of film bag on the original film bag, and repeating the steps until the dam body is pre-built to reach the design height. By adopting the invention, local materials can be obtained, the full tailing sand is reasonably utilized to build the dam, the dam building efficiency is improved, the dam building period is shortened, the dam building cost is reduced, and the zero emission of tailing pulp is realized.
Description
Technical Field
The invention relates to the technical field of mine tailing warehouse damming technology, in particular to a full tailing damming method of a damming machine.
Background
The tailings are mostly discharged in a tailing pond in a slurry form, the tailing pond is large in occupied area and poor in stability, the tailing pond is rich in beneficiation reagents, water penetrates underground to cause great pollution, and potential safety hazards are caused, so that part of mines are subjected to tailing concentration and dehydration and then are discharged in a dry mode to reduce environmental pollution and secondary disasters. No matter dry discharge and wet discharge, tailings are subjected to damming and stockpiling, and in the damming process at home and abroad at present, rolling type earth and stone damming, tailing dry damming, cyclone damming, mold bag damming, stone grouting damming and the like are generally adopted.
The related technology has the following defects that in the damming process, a large amount of foreign materials are needed for damming, so that a large amount of large-scale engineering machinery and a large amount of manpower are needed to be matched with each other to complete damming, damming speed is low, cost is high, tailing rotational flow damming can reduce part of cost, but the cyclone rotational flow only adopts tailing sand with high ore pulp concentration and large relative particles after rotational flow for damming, the rest ore pulp with high water content and small particles is required to be discharged in a tailing pond for stockpiling, and the tailing pulp is not fully utilized and is not suitable for dry discharge of tailing stockpiling.
Disclosure of Invention
The invention aims to provide a full-tailing damming method of a damming machine, which can realize local material utilization, reasonably utilize full-tailing sand to build a dam, improve the damming efficiency, reduce the construction period of the dam, reduce the damming cost, realize zero emission of tailing slurry and reduce the pollution of the tailing slurry to the environment; the problem of damming and discharging of the damming machine in the dry tailing pond is solved, automatic damming is realized by damming the dry tailing pond, and the labor intensity of workers is reduced; the anti-risk capability of the outer side slope of the newly built dam is increased, the strength and stability of the dam are improved, and favorable conditions are provided for slope greening in future.
The embodiment of the invention is realized by the following steps:
the embodiment of the application provides a damming machine full tailings damming method, which comprises the following steps:
digging a dam slope drainage ditch along the damming direction at one side of the pre-damming dam body;
laying an anti-leakage layer between one side of the pre-constructed dam body and the drainage ditch of the dam slope, and placing a film bag above the anti-leakage layer;
building a construction platform between the pre-built dam body and the leakage-proof layer, opening an ore pulp conveyor and a damming machine onto the construction platform, communicating a pulp discharge pipe, the ore pulp conveyor and the damming machine through an ore pulp hose, and communicating a wake flow pulp discharge pipe of the damming machine with a filling port of a film bag;
the dam building machine advances to build a dam on the construction platform along the dam building direction, dry ore sand is used for building the dam after the rotational flow of the dam building machine, high-moisture-content fine ore mortar is injected into the film bag from the injection port, and the dam building machine returns to the heightened construction platform after the dam is built to a specified length;
and after one layer is built, laying a second layer of film bag on the original film bag, and repeating the steps until the dam body is pre-built to reach the design height.
Further, in some embodiments of the present invention, after the pre-dam body reaches the design height, the method further includes:
and changing a discharge port of the dam building machine to a side discharge position, discharging dry ore sand to the inner side of the reservoir, continuously injecting high-water-content fine ore mortar into the film bag, enabling the dam building machine to reciprocate on a new dam building body according to the original road, and building a material pile in the inner side direction of the new dam building body.
Further, in some embodiments of the present invention, after stacking a material pile in the inner direction of the new dam, the method further includes:
pushing the mineral aggregate to the warehouse by a bulldozer to form a new dam body until the width of the dam body is reached, and forming a single dam dividing section;
and repeating the steps, and sequentially establishing a plurality of dam dividing sections along the extending direction of the dam body, wherein the plurality of dam dividing sections form the dam body.
Further, in some embodiments of the invention, before the film bag is placed above the leakage-proof layer, the method further includes
And laying a three-dimensional seepage drainage net above the anti-leakage layer, and then placing the membrane bag above the three-dimensional seepage drainage net.
Further, in some embodiments of the present invention, the anti-leakage layer is a cement blanket.
Further, in some embodiments of the present invention, the membrane bag is a geomembrane bag.
Further, in some embodiments of the present invention, the dam slope drain communicates with the main drain.
Further, in some embodiments of the present invention, the width of the film bag is equal to the width of the leakage-proof layer.
Further, in some embodiments of the present invention, the construction platform is formed by stacking foreign earthwork or ore sand at one end of the pre-dam body.
Further, in some embodiments of the present invention, the height of the construction platform is equal to the prefabricated height of the first layer of film bags.
Compared with the prior art, the embodiment of the invention at least has the following advantages or beneficial effects:
the embodiment of the invention provides a damming machine full tailings damming method, which comprises the following steps:
digging a dam slope drainage ditch along the damming direction at one side of the pre-damming dam body;
laying an anti-leakage layer between one side of the pre-constructed dam body and the drainage ditch of the dam slope, and placing a film bag above the anti-leakage layer;
building a construction platform between the pre-built dam body and the leakage-proof layer, opening an ore pulp conveyor and a damming machine onto the construction platform, communicating a pulp discharge pipe, the ore pulp conveyor and the damming machine through an ore pulp hose, and communicating a wake flow pulp discharge pipe of the damming machine with a filling port of a film bag;
the dam building machine advances to build a dam on the construction platform along the dam building direction, dry ore sand is used for building the dam after the rotational flow of the dam building machine, high-moisture-content fine ore mortar is injected into the film bag from the injection port, and the dam building machine returns to the heightened construction platform after the dam is built to a specified length;
and after one layer is built, laying a second layer of film bag on the original film bag, and repeating the steps until the dam body is pre-built to reach the design height.
By adopting the technical scheme, the tailing slurry is used as a raw material for damming, the dry ore sand after rotational flow of the damming machine is directly dammed through processing of the damming machine, the high-water-content fine ore mortar is injected into the film bag, the water of the tailing in the film bag permeates out and then permeates through the three-dimensional drainage net, the leakage-proof layer is guided to flow into the drainage ditch of the dam slope to flow away, the tailing slurry is fully utilized and stockpiled without discharge, the ore sand is left in the film bag to be solidified after the water of the film bag is filtered out, and vegetation can be planted on the film bag in a subsequent punching way.
Therefore, the method realizes the purposes of reasonably utilizing the whole tailing sand to build the dam by using local materials, improving the dam building efficiency, reducing the construction period of the dam, reducing the dam building cost, realizing zero discharge of ore pulp and reducing the pollution of the tailing pulp to the environment; the problem of damming and discharging of the damming machine in the dry tailing pond is solved, automatic damming is realized by damming the dry tailing pond, and the labor intensity of workers is reduced; the anti-risk capability of the outer side slope of the newly built dam is increased, the strength and stability of the dam are improved, and favorable conditions are provided for slope greening in future.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a transverse partial sectional view of a damming machine according to an embodiment of the present invention;
FIG. 2 is a top view of the dam building machine according to the embodiment of the present invention, which is used for building a dam along the extending direction of a pre-dam body;
fig. 3 is a top view of the damming machine according to the present invention when piling up a pile.
Icon: 1-a dam building machine; 2-dam slope drainage ditch; 3-a slurry discharge pipe; 4-a leak-proof layer; 5-three-dimensional drainage net; 6-film bag; 7-high water content fine ore mortar; 8-dry ore sand; 9-a wake flow slurry discharge pipe; 10-a pulp hose; 11-pre-building a dam body; 12-a bulldozer; 13-construction platform.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without any inventive step, are within the scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are usually placed in when used, the orientations or positional relationships are only used for convenience of describing the present invention and simplifying the description, but the terms do not indicate or imply that the devices or elements indicated must have specific orientations, be constructed in specific orientations, and operate, and therefore, should not be construed as limiting the present invention. Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like do not require that the components be absolutely horizontal or vertical, but may be slightly inclined. Such as "horizontal" simply means that its orientation is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Examples
Referring to fig. 1 to 3, fig. 1 is a transverse partial sectional view of a damming machine 1 according to an embodiment of the present invention; fig. 2 is a top view of the damming machine 1 according to the present invention, when damming along the extending direction of the pre-dam 11; fig. 3 is a top view of the damming machine 1 according to an exemplary embodiment of the present invention when building a pile.
The embodiment provides a method for damming a whole tailing mine by a damming machine, which comprises the following steps:
digging a dam slope drainage ditch 2 on one side of the pre-built dam body 11 along the damming direction;
laying an anti-leakage layer 4 between one side of the pre-constructed dam body 11 and the dam slope drainage ditch 2, and placing a membrane bag 6 above the anti-leakage layer 4;
a construction platform 13 is built between a pre-built dam body 11 and a leakage-proof layer 4, an ore pulp conveyor and a damming machine 1 are arranged on the construction platform 13 and communicated with a pulp discharge pipe 3, the ore pulp conveyor and the damming machine 1 through an ore pulp hose 10, and a tail flow pulp discharge pipe 9 of the damming machine 1 is communicated with a filling port of a film bag 6;
the dam building machine 1 advances to build a dam on the construction platform 13 along the dam building direction, dry ore sand 8 is used for building the dam after the dam building machine 1 swirls, high-water-content fine ore mortar 7 is injected into the film bag 6 from the injection port, and the dam building machine 1 returns to the heightened construction platform 13 after the dam is built to a specified length;
and after one layer is built, laying a second layer of film bag 6 on the original film bag 6, and repeating the steps until the dam pre-building body 11 reaches the design height.
By adopting the technical scheme, tailing slurry is used as a raw material for damming, the dry ore sand 8 after rotational flow of the damming machine 1 is directly dammed through processing of the damming machine 1, high-water-content fine ore mortar 7 is injected into the film bag 6, tailing water in the film bag 6 permeates through the three-dimensional seepage net 5, the anti-leakage layer 4 is guided to flow into the dam slope drainage ditch 2 to flow away, the tailing slurry is fully utilized and stockpiled without discharge, the ore sand is left in the film bag 6 to be solidified after the water is filtered out by the film bag 6, and vegetation can be planted on the film bag 6 in a punching mode subsequently.
Therefore, the method realizes the purposes of reasonably utilizing the whole tailing sand to build the dam by using local materials, improving the dam building efficiency, reducing the construction period of the dam, reducing the dam building cost, realizing zero discharge of ore pulp and reducing the pollution of the tailing pulp to the environment; the problem of damming and discharging of the damming machine 1 in the dry tailing pond is solved, automatic damming of the dry tailing pond is achieved, and labor intensity of workers is reduced; the anti-risk capability of the outer side slope of the newly built dam is increased, the strength and stability of the dam are improved, and favorable conditions are provided for slope greening in future.
As shown in fig. 1 to 3, in some embodiments of the present invention, after the pre-dam 11 reaches the design height, the method further includes:
changing a discharge port of the damming machine 1 to a side discharge position, discharging dry ore sand 8 to the inner side of the reservoir, continuously injecting high-water-content fine ore mortar 7 into a film bag 6, enabling the damming machine 1 to travel on a new damming body in a reciprocating mode according to the original road, and piling a material pile in the inner side direction of the new damming body;
pushing the mineral aggregate to form a new dam body by using a bulldozer 12 until the width of the dam body is reached, and forming a single dam dividing section;
and repeating the steps, and sequentially establishing a plurality of dam dividing sections along the extending direction of the dam body, wherein the plurality of dam dividing sections form the dam body.
As shown in fig. 1-3, in some embodiments of the present invention, before the film bag 6 is placed on the anti-leakage layer 4, the film bag further comprises
And laying a three-dimensional seepage drainage net 5 above the anti-leakage layer 4, and then placing a membrane bag 6 above the three-dimensional seepage drainage net 5.
According to the invention, the three-dimensional seepage drainage net 5 is arranged, so that the membrane bag 6 can be conveniently placed through the three-dimensional seepage drainage net 5, the three-dimensional seepage drainage net 5 is convenient for draining away water, so that water seeped from tailing water in the membrane bag 6 can be conveniently drained onto the anti-leakage layer 4 through the three-dimensional seepage drainage net 5, the water can be conveniently guided to flow into the dam slope drainage ditch 2 through the anti-leakage layer 4 to flow away, and the drainage efficiency of the water in the membrane bag 6 is improved.
Optionally, the three-dimensional drainage and seepage net 5 of the embodiment adopts a three-dimensional drainage net, which is also called a three-dimensional geotechnical drainage plate, a tunnel drainage water plate and a drainage water plate, and is composed of plastic net double-sided bonding water seepage geotextiles with a three-dimensional structure, and the three-dimensional drainage net can replace the traditional sand grains and gravel layers and is mainly used for drainage of refuse landfill sites, roadbeds and tunnel inner walls.
As shown in fig. 1-3, in some embodiments of the present invention, the anti-leakage layer 4 is a cement blanket.
The cement blanket is named as concrete canvas, which is soft cloth soaked with cement and can be hydrated to harden into a thin waterproof and fireproof durable concrete layer when meeting water. The cement blanket has high structural strength and can play a good role in resisting pressure and preventing water. According to the invention, the leakage-proof layer 4 is arranged to be the cement blanket, and the cement blanket plays a role in guiding water and preventing the water from permeating downwards. Therefore, the moisture rich in the beneficiation reagent in the tailing pond is prevented from permeating underground to cause great pollution. And meanwhile, the film bag 6 can be prevented from generating a pressing pit on the dam face due to large local pressure and water permeation in the process of injecting ore pulp. It should be noted that the leakage-proof layer 4 is a cement blanket, which is a preferred embodiment of the present embodiment, and the present invention is not limited thereto, and in other embodiments, the leakage-proof layer 4 may be replaced by other materials having the same function as the cement blanket in actual construction.
As shown in fig. 1-3, in some embodiments of the invention, the membrane bag 6 is a geomembrane bag.
The geotextile bag is a continuous (or separate) bag-shaped product made of a double-layer polymerized fiber synthetic material. The concrete or cement mortar is poured into the mould bag by a high-pressure pump, the thickness of the concrete or cement mortar is controlled by the lengths of the hanging rib bag and the hanging rib rope (polymers such as nylon and the like) in the mould bag, and the concrete or cement mortar is solidified to form a plate-shaped structure or other structures with certain strength, so that the requirement of engineering can be met. The geomembrane bag is mainly used for protecting slopes, coastal coasts, river slopes and the like, and the geomembrane bag 6 is arranged to be a geomembrane bag, so that the geomembrane bag is high in structural strength, not easy to damage and long in service life.
As shown in fig. 1 to 3, in some embodiments of the present invention, the dam slope drainage ditch 2 is communicated with the main drainage ditch. According to the invention, the dam slope drainage ditch 2 is communicated with the main drainage ditch, so that the water drained by seepage can flow into the main drainage ditch to be drained after flowing into the dam slope drainage ditch 2, and the water is prevented from accumulating in the dam slope drainage ditch 2. The main drainage ditch is a ditch groove excavated around the mine tailing pond.
As shown in fig. 1 to 3, in some embodiments of the present invention, the width of the film bag 6 is equal to the width of the leakage-proof layer 4.
The width of the film bag 6 is equal to the width of the anti-leakage layer 4, so that the whole film bag 6 is conveniently supported by the anti-leakage layer 4, and the water seeped and discharged by the film bag 6 can be prevented from flowing into the ground after the width of the film bag 6 exceeds the anti-leakage layer 4.
As shown in fig. 1 to 3, in some embodiments of the present invention, the construction platform 13 is formed by piling up foreign earthwork or ore at one end of the pre-dam body 11. According to the invention, the construction platform 13 is formed by stacking external earthwork or ore sand at one end of the pre-built dam body 11, so that the construction platform 13 is simple to construct, wide in raw material source and convenient to construct. And after the first layer of height is built, a second layer of construction platform 13 is built on the original construction platform 13, and the building process is repeated until the design height is completed. And the membrane bags 6 are laid in layers, and the membrane bags 6 are filled when each layer of dam is built, so that the problem that the ore pulp cannot be filled because the upper membrane bags 6 compress the bottom membrane bags 6 is solved.
As shown in fig. 1-3, in some embodiments of the present invention, the construction platform 13 has a height equal to the prefabricated height of the first layer of film bags 6.
In summary, the embodiment of the present invention provides a method for damming a whole tailings of a damming machine, which includes the following steps:
digging a dam slope drainage ditch 2 on one side of the pre-built dam body 11 along the damming direction;
laying an anti-leakage layer 4 between one side of the pre-constructed dam body 11 and the dam slope drainage ditch 2, and placing a membrane bag 6 above the anti-leakage layer 4;
a construction platform 13 is built between a pre-built dam body 11 and a leakage-proof layer 4, an ore pulp conveyor and a damming machine 1 are arranged on the construction platform 13 and communicated with a pulp discharge pipe 3, the ore pulp conveyor and the damming machine 1 through an ore pulp hose 10, and a tail flow pulp discharge pipe 9 of the damming machine 1 is communicated with a filling port of a film bag 6;
the dam building machine 1 advances to build a dam on the construction platform 13 along the dam building direction, dry ore sand 8 is used for building the dam after the dam building machine 1 swirls, high-water-content fine ore mortar 7 is injected into the film bag 6 from the injection port, and the dam building machine 1 returns to the heightened construction platform 13 after the dam is built to a specified length;
and after one layer is built, laying a second layer of film bag 6 on the original film bag 6, and repeating the steps until the dam pre-building body 11 reaches the design height.
By adopting the technical scheme, tailing slurry is used as a raw material for damming, the dry ore sand 8 after rotational flow of the damming machine 1 is directly dammed through processing of the damming machine 1, high-water-content fine ore mortar 7 is injected into the film bag 6, tailing water in the film bag 6 permeates through the three-dimensional seepage net 5, the anti-leakage layer 4 is guided to flow into the dam slope drainage ditch 2 to flow away, the tailing slurry is fully utilized and stockpiled without discharge, the ore sand is left in the film bag 6 to be solidified after the water is filtered out by the film bag 6, and vegetation can be planted on the film bag 6 in a punching mode subsequently.
Therefore, the method realizes the purposes of reasonably utilizing the whole tailing sand to build the dam by using local materials, improving the dam building efficiency, reducing the construction period of the dam, reducing the dam building cost, realizing zero discharge of ore pulp and reducing the pollution of the tailing pulp to the environment; the problem of damming and discharging of the damming machine 1 in the dry tailing pond is solved, automatic damming of the dry tailing pond is achieved, and labor intensity of workers is reduced; the anti-risk capability of the outer side slope of the newly built dam is increased, the strength and stability of the dam are improved, and favorable conditions are provided for slope greening in future.
While the present invention has been described with reference to the preferred embodiments, it is to be understood that the invention is not limited to the details of the foregoing illustrative embodiments, and that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof.
The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A method for damming a whole tailing mine by a damming machine is characterized by comprising the following steps: the method comprises the following steps:
digging a dam slope drainage ditch along the damming direction at one side of the pre-damming dam body;
laying an anti-leakage layer between one side of the pre-constructed dam body and the drainage ditch of the dam slope, and placing a film bag above the anti-leakage layer;
building a construction platform between the pre-built dam body and the leakage-proof layer, opening an ore pulp conveyor and a damming machine onto the construction platform, communicating a pulp discharge pipe, the ore pulp conveyor and the damming machine through an ore pulp hose, and communicating a wake flow pulp discharge pipe of the damming machine with a filling port of a film bag;
the dam building machine advances to build a dam on the construction platform along the dam building direction, dry ore sand is used for building the dam after the rotational flow of the dam building machine, high-moisture-content fine ore mortar is injected into the film bag from the injection port, and the dam building machine returns to the heightened construction platform after the dam is built to a specified length;
and after one layer is built, laying a second layer of film bag on the original film bag, and repeating the steps until the dam body is pre-built to reach the design height.
2. The method of damming a whole tailings mine of a damming machine according to claim 1, wherein: after the dam body of building in advance reaches the design height, still include:
and changing a discharge port of the dam building machine to a side discharge position, discharging dry ore sand to the inner side of the reservoir, continuously injecting high-water-content fine ore mortar into the film bag, enabling the dam building machine to reciprocate on a new dam building body according to the original road, and building a material pile in the inner side direction of the new dam building body.
3. The method of damming a whole tailings mine of a damming machine according to claim 2, wherein: after a material pile is piled up in the inner side direction of the newly built dam, the method further comprises the following steps:
pushing the mineral aggregate to the warehouse by a bulldozer to form a new dam body until the width of the dam body is reached, and forming a single dam dividing section;
and repeating the steps, and sequentially establishing a plurality of dam dividing sections along the extending direction of the dam body, wherein the plurality of dam dividing sections form the dam body.
4. The method of damming a whole tailings mine of a damming machine according to claim 1, wherein: before the membrane bag is placed above the leakage-proof layer, the method also comprises
And laying a three-dimensional seepage drainage net above the anti-leakage layer, and then placing the membrane bag above the three-dimensional seepage drainage net.
5. The method of damming a whole tailings mine of a damming machine according to claim 1, wherein: the anti-leakage layer is a cement blanket.
6. The method of damming a whole tailings mine of a damming machine according to claim 1, wherein: the membrane bag is a geomembrane bag.
7. The method of damming a whole tailings mine of a damming machine according to claim 1, wherein: and the dam slope drainage ditch is communicated with the main drainage ditch.
8. The method of damming a whole tailings mine of a damming machine according to claim 1, wherein: the width of the film bag is equal to that of the leakage-proof layer.
9. The method of damming a whole tailings mine of a damming machine according to claim 1, wherein: the construction platform is formed by piling up external earthwork or ore sand at one end of the pre-built dam body.
10. The method of damming a whole tailings mine of a damming machine according to claim 9, wherein: the height of the construction platform is equal to the pre-building height of the first layer of film bags.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115492131A (en) * | 2022-08-23 | 2022-12-20 | 攀钢集团矿业有限公司 | Embankment type soil covering method and device for tailing pond closed tail weak beach face |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115492131A (en) * | 2022-08-23 | 2022-12-20 | 攀钢集团矿业有限公司 | Embankment type soil covering method and device for tailing pond closed tail weak beach face |
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