CN219690601U - Anti-seepage structure of environment-friendly double-layer bottom pad - Google Patents
Anti-seepage structure of environment-friendly double-layer bottom pad Download PDFInfo
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- CN219690601U CN219690601U CN202320273615.6U CN202320273615U CN219690601U CN 219690601 U CN219690601 U CN 219690601U CN 202320273615 U CN202320273615 U CN 202320273615U CN 219690601 U CN219690601 U CN 219690601U
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- seepage
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- 239000004927 clay Substances 0.000 claims abstract description 26
- 238000007689 inspection Methods 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000003860 storage Methods 0.000 claims abstract description 15
- 239000004576 sand Substances 0.000 claims abstract description 10
- 238000000407 epitaxy Methods 0.000 claims abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 65
- 239000007788 liquid Substances 0.000 description 12
- 239000000463 material Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 239000011464 hollow brick Substances 0.000 description 7
- 238000002386 leaching Methods 0.000 description 6
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 4
- 239000010931 gold Substances 0.000 description 4
- 229910052737 gold Inorganic materials 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 239000004744 fabric Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 2
- 239000011449 brick Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 239000002920 hazardous waste Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000002985 plastic film Substances 0.000 description 2
- 229920006255 plastic film Polymers 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005465 channeling Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000003864 humus Substances 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001896 polybutyrate Polymers 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
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- Sewage (AREA)
Abstract
The utility model relates to an environment-friendly double-layer bottom pad anti-seepage structure, which comprises an anti-seepage checking layer and an anti-seepage diversion layer paved on the anti-seepage checking layer; the seepage-proofing inspection layer comprises a ditch body, a first clay layer is laid on the ditch body and the epitaxy, a first biodegradable film layer is arranged on the first clay layer, an inspection blind ditch is arranged on the first biodegradable film layer, the inspection blind ditch is arranged above the ditch body, and an outlet of the inspection blind ditch is connected with the water collecting tank; the seepage-proofing diversion layer comprises a second clay layer, and a second biodegradable film layer is arranged on the second clay layer; a diversion blind ditch is arranged on the second biodegradable film layer; a fine sand layer is arranged on the diversion blind ditch; the outlet of the ditch body and the diversion blind ditch is connected with a water collecting tank which is arranged at the lowest part of the storage yard side. The utility model has simple structure, can effectively stop the loss of the leachate of the storage yard, and achieves the aims of recoverability, monitoring, low cost and environmental friendliness.
Description
Technical Field
The utility model relates to the field of nonferrous metal dressing and smelting, in particular to an environment-friendly double-layer bottom pad anti-leakage structure.
Background
The heap leaching method for beneficiation is a newer gold extraction process developed in the early seventies of the twentieth century, has the advantages of simple process, low investment, low cost and changeable production scale, and is suitable for treating low-grade gold-bearing oxidized ores, tailings, slag and the like.
The traditional yard bottom cushion laying method comprises the following steps: the bottom pad is an important component in a heap leaching facility, can prevent cyanide solution and noble liquid from leaking, stops gold loss, eliminates environmental pollution, is a key point for success or failure of heap leaching, levels and tamps the bottom surface of a storage yard, and has a certain bearing capacity on the basis, wherein the leveling requirement is that firstly, the gradient of a field is 2% -4%, the gradient inclination direction is necessarily inclined to the direction of a liquid collecting tank, and secondly, clay with the thickness of 10 cm-15 cm is uniformly spread on the surface of the field after the gradient of the field reaches the standard and levels, so that sundries such as sharp broken stones, tree roots and the like in the clay are removed. Then adopting two-cloth-one film to conduct impermeable layer layout.
The plastic color cloth with the thickness of 0.2mm is paved on the clay upper layer, the seepage-proof plastic film which is not leaked, has good toughness and high puncture resistance and is easy to construct is paved on the color cloth, and a layer of plastic color cloth is paved on the seepage-proof plastic film. After the substrate is paved, a layer of ore with finer granularity of 4-6 mm and with the thickness of more than 50cm is pressed on the substrate manually or mechanically, so that the substrate is ensured not to be damaged, and the loss of noble liquid and the environmental pollution are avoided; and adding a layer of lump ore with the thickness of 30 cm-50 cm and the granularity of 250-350 mm on the surface so as to increase the permeation speed, finally arranging liquid collecting grooves around the heap leaching field, paving the liquid collecting grooves around the ground of the heap according to the topography, and paving the liquid collecting grooves with a polyethylene film with the gradient of 2% -5% so as to collect spray liquid, wherein the spray liquid automatically flows into a noble liquid pond.
The related technical specifications are successively exported by related departments of the country, wherein the related antiseep technical specifications mainly comprise:
technical standard GB/T51404-2019 of nonferrous metal heap leaching field leaching solution collection system;
section 5.2-I-5.3 II of general industrial solid waste storage and landfill pollution control Standard GB 18599-2020;
section 6.3.1 of hazardous waste storage pollution control Standard GB 18597-2001;
section 5.4-5.8 of hazardous waste landfill pollution control Standard GB 18598-2019;
section 5.3-5.8 of pollution control Standard for household refuse landfill GB 16889-2008;
underground water pollution source seepage control technical guidelines (trial) section 5.2.1, appendix b.1;
section 5.1-5.2.3 of petrochemical engineering anti-seepage technical Specification GB/T50934-2013;
the implementation of the above technical specifications can meet the related requirements, but there are some technical problems, for example: the structure is more complex, the construction process is more complex, so the cost is higher; the base pad material is not easy to degrade, has a certain influence on the environment, and the like.
Disclosure of Invention
In order to solve the problems, the utility model provides an environment-friendly double-layer bottom pad anti-leakage structure, which is a recyclable, monitorable and low-cost environment-friendly double-layer bottom pad anti-leakage structure, and is suitable for places with anti-leakage requirements, in particular to the non-ferrous metal dressing and smelting field, such as the bottom pad laying of gold storage yards.
The technical scheme of the utility model is as follows:
an environment-friendly double-layer bottom pad anti-seepage structure comprises an anti-seepage checking layer and an anti-seepage diversion layer paved on the anti-seepage checking layer;
the seepage-proofing inspection layer comprises a ditch body, a first clay layer is laid on the ditch body and the epitaxy, a first biodegradable film layer is arranged on the first clay layer, an inspection blind ditch is arranged on the first biodegradable film layer, the inspection blind ditch is arranged above the ditch body, and an outlet of the inspection blind ditch is connected with the water collecting tank;
the seepage-proofing diversion layer comprises a second clay layer, and a second biodegradable film layer is arranged on the second clay layer; a diversion blind ditch is arranged on the second biodegradable film layer; a fine sand layer is arranged on the diversion blind ditch;
the outlet of the ditch body and the diversion blind ditch is connected with a water collecting tank which is arranged at the lowest part of the storage yard side.
The anti-seepage effect is generally achieved by a single layer, the impact of the base cushion in the later material stacking process is difficult to be ensured, hidden damage is caused, leakage is generated, and irrecoverable loss and influence are formed. The structure of the utility model can effectively solve the problem that hidden damage can not be judged and recovered.
Further, the first clay layer has a thickness of 30cm; the second clay layer had a thickness of 50cm.
Further, the ditch body is shaped like a Chinese character 'tian'.
Further, the first biodegradable film layer is two layers; the second biodegradable film layer is three layers; the thickness of each layer of biodegradable film is not less than 1mm.
Further, the diversion blind ditch comprises a main diversion blind ditch and a secondary diversion blind ditch, the main diversion blind ditch comprises frame ditches and middle vertical ditches arranged between the frame ditches, a plurality of diversion blind ditches are obliquely arranged between the frame ditches and the middle vertical ditches in parallel, and the frame ditches, the middle vertical ditches and the secondary diversion blind ditches are mutually communicated.
The fishbone-shaped structure can effectively and orderly collect material percolate or spray liquid, and can effectively prevent the material percolate or spray liquid from impacting or channeling the material due to insufficient diversion trench or position and other problems, thereby causing the stability problem of a material pile.
Further, the secondary diversion blind ditches are 45 degrees with the primary diversion blind ditches, and the distance between the secondary diversion blind ditches is 5m.
Further, the thickness of the fine sand layer was 30cm.
Further, the slope inclination direction of the yard is inclined to the sump direction.
Compared with the prior art, the utility model has the following beneficial effects:
the utility model simplifies the structure, simplifies the construction process, adopts biodegradable film materials, can effectively stop the loss of the leachate of the storage yard, and achieves the aims of recycling, monitoring, low cost and environmental protection.
Drawings
FIG. 1 is a cross-sectional view of a double-layered bottom-pad leakage-preventing structure according to an embodiment of the present utility model
FIG. 2 is a plan view of a trench body in accordance with an embodiment of the present utility model;
fig. 3 is a plan view of a blind drain according to an embodiment of the present utility model.
Description of the embodiments
The following description of the embodiments will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. Based on the embodiments, all other embodiments that may be obtained by a person of ordinary skill in the art without making any inventive effort are within the scope of the present utility model.
Unless otherwise defined, technical or scientific terms used in the embodiments of the present utility model should be given the ordinary meaning as understood by one of ordinary skill in the art. The terms "first," "second," and the like, as used in this embodiment, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. "upper", "lower", "left", "right", "transverse", and "vertical", etc. are used only with respect to the orientation of the components in the drawings, these directional terms are relative terms, which are used for descriptive and clarity with respect thereto and which may vary accordingly with respect to the orientation in which the components are disposed in the drawings.
As shown in fig. 1, the environment-friendly double-layer bottom pad anti-leakage structure of the embodiment comprises an anti-leakage checking layer 1 and an anti-leakage diversion layer 2 paved on the anti-leakage checking layer 1.
The seepage-proofing inspection layer 1 comprises a ditch body 1.1 excavated on a storage yard foundation 3, wherein the ditch body 1.1 and an epitaxy are paved with a first clay layer 1.2, a first biodegradable film layer 1.3 is paved on the first clay layer 1.2, an inspection blind ditch 1.4 formed by a first hollow brick layer is arranged on the first biodegradable film layer 1.3, the inspection blind ditch is arranged above the ditch body 1.1, and the outlet of the inspection blind ditch is connected with a water collecting tank 4.
The seepage-proofing diversion layer 2 comprises a second clay layer 2.1, and a second biodegradable film layer 2.2 is arranged on the second clay layer 2.1; the second biodegradable film layer 2.2 is provided with a diversion blind ditch 2.3 formed by a second hollow brick layer; the diversion blind ditch 2.3 is provided with a fine sand layer 2.4.
The outlet of the diversion blind ditch 2.3 is connected with a water collecting tank 4, and the water collecting tank 4 is arranged at the lowest part of the storage yard side. In this embodiment, the inspection blind drain 1.4 and the diversion blind drain 2.3 share a water collecting tank 4, and the water collecting tank 4 is disposed at the left lower end.
As shown in fig. 2 and 3, the ditch body 1.1 is in a shape of a "Chinese character 'tian', the diversion blind ditch 2.3 is in a shape of a" fishbone ", the diversion blind ditch comprises a main diversion blind ditch 2.31 and a secondary diversion blind ditch 2.32, the main diversion blind ditch 2.31 comprises a frame ditch 2.311 and a middle vertical ditch 2.312 arranged between the frame ditches 2.311, a plurality of diversion blind ditches 2.32 are obliquely and parallelly arranged between the frame ditches 2.311 and the middle vertical ditch 2.312, the distance between the secondary diversion blind ditches 2.32 is 5m, and an included angle of 45 degrees is formed between the secondary diversion blind ditches 2.32 and the middle vertical ditch 2.312. The frame ditch 2.311, the middle vertical ditch 2.312 and the secondary diversion blind ditch 2.32 are communicated with each other.
Based on the above structure, the paving method of the structure of the present embodiment is specifically as follows:
laying an anti-seepage checking layer 1: after the slope of the storage yard is swept out, firstly, a ditch body 1.1 in a shape like a Chinese character 'Tian' is excavated on a storage yard foundation 3, then a first clay layer 1.2 is covered for 30cm pre-pressing, then two layers of biodegradable films are paved, namely a first biodegradable film layer 1.3, the material can be PBAT, PCL, PLA, and then a first hollow brick layer is paved, so that an inspection blind ditch 1.4 is formed.
Laying an anti-seepage diversion layer 2: then covering a second clay layer by 2.1 cm, tamping, adding three layers of biodegradable films, namely a second biodegradable film layer 2.2, and paving the second clay layer into a diversion blind ditch 2.3 in a fishbone shape by using hollow bricks. And spreading a layer of fine sand, namely a fine sand layer of 2.4, wherein the grain diameter of the fine sand is less than or equal to 1.2cm, and the thickness of the fine sand is 30cm.
The outlets of the ditch body 1.1 and the diversion blind ditches 2.3 are connected with the water collecting tank 4 and are arranged at the lowest part of the storage yard side.
The water outlet of the ditch body 1.1 paved with the seepage-proofing inspection layer 1 is monitored daily, and the conditions such as water quantity change, cyanide change and the like are mainly observed. Can ensure 100% recovery of the leached noble liquid and avoid economic loss and environmental impact.
The main implementation points of the method of this embodiment are as follows:
1. the stack leveling and cleaning requirements are as follows: the brick is flat, compact, free of cracks, looseness, ponding, obvious unevenness, stone-free brick, tree roots, weeds, silt and humus soil, and the transition between the ground bottom and the side slope is gentle.
2. The gradient of the storage yard is between 2% and 4%, and the gradient inclination direction is necessarily inclined to the water collecting pool direction.
3. The thickness of the biodegradable film is not less than 1mm.
4. The ditch body of the check layer is 1.1 cm deep, 20cm wide and 40cm wide, and when laying hollow bricks, two layers of biodegradable films are additionally laid.
5. The hollow bricks are paved into the diversion blind ditches in a fishbone shape, and three layers of biodegradable films are additionally paved when the hollow bricks are paved.
6. The biodegradable film is lapped and folded to form a folding opening and uniformly face the water collecting tank 4; after the edges of the films are aligned, the lap joint width of each lap joint is not smaller than 10cm, and the films are folded for 3-6 times in the direction of the prescription; the two adjacent film overlap joints are separated by at least 2 meters.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (8)
1. An environment-friendly double-layer bottom pad antiseep structure, which is characterized in that: the anti-seepage device comprises an anti-seepage checking layer and an anti-seepage diversion layer paved on the anti-seepage checking layer;
the seepage-proofing inspection layer comprises a ditch body, a first clay layer is laid on the ditch body and the epitaxy, a first biodegradable film layer is arranged on the first clay layer, an inspection blind ditch is arranged on the first biodegradable film layer, the inspection blind ditch is arranged above the ditch body, and an outlet of the inspection blind ditch is connected with the water collecting tank;
the seepage-proofing diversion layer comprises a second clay layer, and a second biodegradable film layer is arranged on the second clay layer; a diversion blind ditch is arranged on the second biodegradable film layer; a fine sand layer is arranged on the diversion blind ditch;
the outlet of the ditch body and the diversion blind ditch is connected with a water collecting tank which is arranged at the lowest part of the storage yard side.
2. The structure according to claim 1, characterized in that: the thickness of the first clay layer is 30cm; the second clay layer had a thickness of 50cm.
3. The structure according to claim 1, characterized in that: the ditch body is shaped like a Chinese character 'tian'.
4. The structure according to claim 1, characterized in that: the first biodegradable film layer is two layers; the second biodegradable film layer is three layers; the thickness of each layer of biodegradable film is not less than 1mm.
5. The structure according to claim 1, characterized in that: the diversion blind ditch comprises a main diversion blind ditch and a secondary diversion blind ditch, the main diversion blind ditch comprises frame ditches and middle vertical ditches arranged between the frame ditches, a plurality of diversion blind ditches are obliquely arranged between the frame ditches and the middle vertical ditches in parallel, and the frame ditches, the middle vertical ditches and the secondary diversion blind ditches are mutually communicated.
6. The structure according to claim 5, characterized in that: the secondary diversion blind ditches are 45 degrees with the primary diversion blind ditches, and the distance between the secondary diversion blind ditches is 5m.
7. The structure according to claim 1, characterized in that: the thickness of the fine sand layer was 30cm.
8. The structure according to claim 1, characterized in that: the slope inclination direction of the yard is inclined to the water collection tank direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320273615.6U CN219690601U (en) | 2023-02-21 | 2023-02-21 | Anti-seepage structure of environment-friendly double-layer bottom pad |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320273615.6U CN219690601U (en) | 2023-02-21 | 2023-02-21 | Anti-seepage structure of environment-friendly double-layer bottom pad |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219690601U true CN219690601U (en) | 2023-09-15 |
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ID=87963209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320273615.6U Active CN219690601U (en) | 2023-02-21 | 2023-02-21 | Anti-seepage structure of environment-friendly double-layer bottom pad |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219690601U (en) |
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2023
- 2023-02-21 CN CN202320273615.6U patent/CN219690601U/en active Active
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