CN211341063U - Seepage-preventing membrane upward seepage-guiding system suitable for phosphogypsum storage yard - Google Patents
Seepage-preventing membrane upward seepage-guiding system suitable for phosphogypsum storage yard Download PDFInfo
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- CN211341063U CN211341063U CN201922035395.XU CN201922035395U CN211341063U CN 211341063 U CN211341063 U CN 211341063U CN 201922035395 U CN201922035395 U CN 201922035395U CN 211341063 U CN211341063 U CN 211341063U
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- seepage
- phosphogypsum
- ditch
- cushion layer
- longitudinal drainage
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- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 title claims abstract description 53
- 239000012528 membrane Substances 0.000 title claims abstract description 15
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229920006262 high density polyethylene film Polymers 0.000 claims abstract description 21
- 239000004927 clay Substances 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229920001903 high density polyethylene Polymers 0.000 claims abstract description 14
- 239000004700 high-density polyethylene Substances 0.000 claims abstract description 14
- 239000004033 plastic Substances 0.000 claims abstract description 12
- 229920003023 plastic Polymers 0.000 claims abstract description 12
- 239000002253 acid Substances 0.000 claims abstract description 11
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 11
- 239000004746 geotextile Substances 0.000 claims abstract description 10
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 10
- 238000007596 consolidation process Methods 0.000 abstract description 3
- 230000018044 dehydration Effects 0.000 abstract description 2
- 238000006297 dehydration reaction Methods 0.000 abstract description 2
- 239000010410 layer Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 6
- 239000002002 slurry Substances 0.000 description 5
- 230000008595 infiltration Effects 0.000 description 3
- 238000001764 infiltration Methods 0.000 description 3
- 239000002910 solid waste Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012946 outsourcing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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Abstract
The utility model discloses an anti-seepage membrane upward-seepage-guiding system suitable for a phosphogypsum storage yard, which is characterized in that a plurality of seepage-guiding blind ditches are transversely arranged on a phosphogypsum storage yard basin, two parallel longitudinal drainage ditches are arranged on the axial line position of the phosphogypsum storage basin, the area is divided into two parts, the middle parts of the left half area and the right half area are respectively provided with a longitudinal drainage ditch, and one end of each of the two longitudinal drainage ditches is communicated through a transverse ditch section; the seepage guiding blind ditch and the longitudinal drainage ditch jointly form a 'field' -shaped seepage guiding system; the seepage guide blind ditch is formed by a bidirectional geogrid, a clay cushion layer, an HDPE film, an ardealite cushion layer, geotextile, acid-resistant silica and a plastic blind ditch, and the longitudinal drainage ditch is formed by the bidirectional geogrid, the clay cushion layer, the HDPE film, the ardealite cushion layer and an HDPE pipe. The structure can effectively guide and discharge water in the yard, accelerate dehydration and consolidation of the phosphogypsum, reduce uneven settlement of the phosphogypsum yard and obviously improve the overall stability of the yard.
Description
Technical Field
The utility model relates to a prevent osmosis membrane and lead system of oozing suitable for ardealite stock dump, be particularly useful for ardealite stock dump in service belongs to chemical industry solid waste stock dump technical field.
Background
The phosphogypsum belongs to the II-class general industrial solid waste, the stacking mode mainly adopts wet stacking, phosphogypsum slurry is conveyed to a storage area of a storage yard through a slurry conveying pipeline, phosphogypsum slag slurry is drained and consolidated by a seepage guiding system arranged in the storage yard under the action of self gravity to form a stacking dam, and the bottom of the storage yard adopts an HDPE film to perform full-warehouse basin seepage prevention. The seepage guide system is used as an important drainage facility in the yard, and guides and drains water contained in the phosphogypsum and rainwater seeping into the yard to the outside of the yard, so that the system can reduce the height of a seepage line, improve the mechanical property of dam body materials of the stacking dam and increase the stability of the phosphogypsum stacking dam. The conventional system of oozing of leading comprises HDPE floral tube outsourcing rubble, geotechnological cloth, but HDPE floral tube trompil operation is many by the on-the-spot workman trompil on the real wall pipe of HDPE by oneself, and not only the percent opening is low but also be difficult to the proof mass, often leads to wash port department to be blockked up at the operation in-process, and unable smooth and easy drainage leads to oozing the system failure.
To solve these problems, the skilled person has provided some good solutions, such as the utility model patent applied by the Guiyang survey design research institute of China hydroelectricity consultant group, Inc., a solution to the bottom seepage-guiding device of wet-discharge filming and seepage-proofing phosphogypsum yard (with the publication number of CN 103669550A) discloses a solution to the bottom seepage-guiding device of wet-discharge filming and seepage-proofing phosphogypsum yard, belonging to the technical field of chemical facilities. The seepage guiding blind ditch comprises an initial dam, seepage guiding blind ditches, stainless steel pipes and solid-wall pipes, wherein each seepage guiding blind ditch consists of two transverse seepage guiding blind ditches parallel to the axis of the initial dam and a longitudinal blind ditch perpendicular to the transverse seepage guiding blind ditches, the distance between the first transverse seepage guiding blind ditch and the dam foot of the initial dam is not less than 50m, and the distance between the second transverse seepage guiding blind ditch and the first transverse seepage guiding blind ditch is not less than 50 m. The scheme solves the problem that saturated water in the phosphogypsum in the yard is drained to a downstream water pool under the condition of not damaging an anti-seepage system of the phosphogypsum yard, so that drainage consolidation of the phosphogypsum is accelerated, physical and mechanical indexes of the phosphogypsum are increased, and the operation safety of the phosphogypsum yard is ensured.
However, the above prior art has not considered: the ardealite storage yard has large irregular settlement and deformation, and the problems of seepage-proof film tearing, process water leakage, incapability of normally draining water after extrusion and damage of a seepage-guiding floral tube and the like frequently occur because a measure for preventing uneven settlement is not provided. According to engineering practical experience, the bottom seepage guide system of many running phosphogypsum yards is basically in a failure state, especially the phosphogypsum yard which is continuously heightened in the running process, and the prior art cannot meet the basic safety requirement.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a prevent osmosis membrane and lead system on seepage suitable for ardealite store yard, this structure construction convenience, engineering cost is low, can not only effectively lead the inside water of arranging the store yard for ardealite dehydration concreties, can reduce the inhomogeneous settlement of ardealite store yard moreover, is showing the overall stability who improves the store yard.
The utility model discloses a realize like this:
a seepage guide system on an anti-seepage film suitable for a phosphogypsum storage yard is characterized in that a plurality of seepage guide blind ditches are transversely arranged on a storage basin of the phosphogypsum storage yard, two parallel longitudinal drainage ditches are distributed on the middle axial line of the storage basin of the phosphogypsum storage yard to divide the storage basin into two areas, the middle parts of the left half area and the right half area are respectively provided with a longitudinal drainage ditch, and one end of each of the two longitudinal drainage ditches is communicated through a transverse ditch section; the seepage guide blind ditch and the longitudinal drainage ditch jointly form a 'field' -shaped seepage guide system; the seepage guide blind ditch is formed by a bidirectional geogrid, a clay cushion layer, an HDPE film, an ardealite cushion layer, geotextile, acid-resistant silica and a plastic blind ditch, and the longitudinal drainage ditch is formed by the bidirectional geogrid, the clay cushion layer, the HDPE film, the ardealite cushion layer and an HDPE pipe.
Compared with the prior art, the beneficial effects of the utility model reside in that:
(1) the bidirectional geogrid improves the overall rigidity of a storage yard, avoids large uneven settlement generated in the phosphogypsum consolidation process and ensures that an anti-seepage system in a reservoir area is not torn;
(2) transverse infiltration guiding blind ditch and longitudinal drainage ditch
The phosphogypsum slurry guiding and leaking system is formed together, and separates the phosphogypsum yard tank ⑨ into a plurality of small units, so that the rapid guiding and draining of process water in the yard to the outside of the yard during the later period of discharging phosphogypsum slurry is facilitated;
(3) along with the continuous increase of the filling height of the stacking dam, the infiltration line in the phosphogypsum stacking dam is correspondingly lifted, and the phenomenon of uneven settlement is aggravated. If the seepage guide system is laid by the prior art, the seepage guide system is possibly exposed to the risk of failure again. Adopt at yard current situation elevation the utility model discloses a structure not only can effectively avoid the higher concentrated seepage that leads to of infiltration line and the risk of acid water continuation downward seepage, effectively accelerates the ardealite to solidify simultaneously, reduces inside pore water pressure, improves the overall stability of ardealite yard.
Drawings
FIG. 1 is a schematic view of a seepage-guiding system on an impermeable membrane;
FIG. 2 is a sectional view of the seepage guiding blind ditch A-A;
FIG. 3 is a cross-sectional view of a gutter B-B;
FIG. 4 is a cross-sectional view of a drain C-C;
description of reference numerals: 1-bidirectional geogrid, 2-clay cushion layer, 3-HDPE film, 4-phosphogypsum cushion layer, 5-geotextile, 6-acid-resistant silica, 7-plastic blind ditch, 8-HDPE solid-wall pipe, 9-phosphogypsum stack storehouse basin, 10-transverse seepage blind ditch and 11-longitudinal drainage ditch.
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 the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be 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 meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The utility model discloses an implement like this:
as shown in fig. 1-4, the structure of the present invention includes the following items: the device comprises a bidirectional geogrid 1, a clay cushion layer 2, an HDPE film 3, an phosphogypsum cushion layer 4, geotextiles 5, acid-resistant silica 6, a plastic blind ditch 7, an HDPE pipe 8, a phosphogypsum yard reservoir basin 9, a transverse seepage-guiding blind ditch 10 and a longitudinal drainage ditch 11.
In order to reduce the uneven settlement of the whole phosphogypsum yard, the bidirectional geogrid 1 is fully paved at the bottom of a reservoir basin 9 of the phosphogypsum yard, the bottom width is more than or equal to 1.6m, the paving slopes on two sides are not steeper than 1:4.0, and the specific specification of the bidirectional geogrid 1 is determined according to the stacking height analysis of the phosphogypsum yard. The HDPE film 3 is laid on the clay cushion layer 2, the thickness of the HDPE film 3 is more than or equal to 1.5mm, the HDPE film has an important anti-seepage function, and the process water in the newly filled phosphogypsum pile is prevented from seeping. The compactness of the clay cushion layer 2 is more than or equal to 95 percent, the thickness of the clay cushion layer 2 is more than or equal to 60cm, the clay cushion layer 2 not only can be used as an HDPE film 3 to provide a flat and compact foundation, but also can be used as an anti-seepage body to prevent process water from leaking and polluting the environment under the condition that the HDPE film 3 is accidentally damaged.
The geotextile 5, the acid-resistant silica 6 and the plastic blind ditch 7 form a seepage guide body, the bottom width is 1.0m, the top width is 3.0m, the slope ratio is 1:2.0, the geotextile 5 is 600g/m, and is used for guiding and draining water contained in phosphogypsum and rainwater permeating into a yard2The geotextile is made of acid-resistant silica with the particle size of acid-resistant silica 6 being 3 cm-5 cm, the plastic blind ditch 7 is a plastic blind ditch with the diameter of 30cm, and the porosity is more than or equal to 90 percent (far higher than that of the traditional HDPE floral tube). The phosphogypsum cushion layer 4 is positioned between the permeability guide body and the HDPE film 3, the thickness is more than or equal to 60cm, and the HDPE film 3 is protected from being damaged. The HDPE pipe 8 is a DN315 solid-wall pipe, water collected by the seepage-guiding bodies in the whole stack field is guided and discharged out of the stack field, and the HDPE pipe 8 is connected with the plastic blind ditch 7 through a reducing tee joint and a four-way joint;
the two-way geogrid 1, the clay cushion layer 2, the HDPE film 3, the phosphogypsum cushion layer 4, the geotextile 5, the acid-resistant silica 6 and the plastic blind ditch 7 jointly form a seepage guiding blind ditch 10 (shown in figure 2), and the two-way geogrid 1, the clay cushion layer 2, the HDPE film 3, the phosphogypsum cushion layer 4 and the HDPE pipe 8 jointly form a longitudinal drainage ditch 11 (shown in figures 3 and 4).
During specific implementation, a plurality of seepage guiding blind ditches 10 can be arranged according to the field area of the phosphogypsum yard reservoir basin 9, and the distance between the two seepage guiding blind ditches 10 is 40-60 m; two longitudinal drainage ditches 11 are arranged at the middle axial line position of the phosphogypsum storage basin 9 (as shown in figure 3), the area is divided into two parts, and the distance between the longitudinal drainage ditches 11 in the left half area and the right half area is 80-100 m; the transverse seepage-guiding blind ditch 10 and the longitudinal drainage ditch 11 together form a 'field' -shaped seepage-guiding system.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (9)
1. The utility model provides a prevent osmosis membrane and lead system of oozing suitable for ardealite store yard which characterized in that: transversely arranging a plurality of seepage guide blind ditches (10) on a phosphogypsum storage basin (9), arranging two parallel longitudinal drainage ditches (11) on the middle axial line of the phosphogypsum storage basin (9), dividing the area into two parts, respectively arranging one longitudinal drainage ditch (11) in the middle of the left half area and the right half area, and communicating one end of each longitudinal drainage ditch (11) through a transverse ditch section; the seepage guiding blind ditch (10) and the longitudinal drainage ditch (11) jointly form a 'field' -shaped seepage guiding system; the seepage guiding blind ditch (10) is formed by a bidirectional geogrid (1), a clay cushion layer (2), an HDPE film (3), an ardealite cushion layer (4), geotextile (5), acid-resistant silica (6) and a plastic blind ditch (7), and the longitudinal drainage ditch (11) is formed by the bidirectional geogrid (1), the clay cushion layer (2), the HDPE film (3), the ardealite cushion layer (4) and an HDPE pipe (8).
2. The impermeable membrane upward-osmosis guiding system suitable for the phosphogypsum storage yard according to claim 1, characterized in that: the distance between every two seepage guiding blind ditches (10) is 40-60 m.
3. The impermeable membrane upward-osmosis guiding system suitable for the phosphogypsum storage yard according to claim 1, characterized in that: the distance between the left and right semi-region longitudinal drainage ditches (11) is 80-100 m.
4. The impermeable membrane upward-osmosis guiding system suitable for the phosphogypsum storage yard according to claim 1, characterized in that: the bidirectional geogrid (1) is fully paved at the bottom of a phosphogypsum yard reservoir basin (9), the bottom width is more than or equal to 1.6m, and the paving slopes on two sides are not steeper than 1: 4.0.
5. The impermeable membrane upward-osmosis guiding system suitable for the phosphogypsum storage yard according to claim 4, characterized in that: the HDPE film (3) is laid on the clay cushion layer (2), and the thickness of the HDPE film (3) is more than or equal to 1.5 mm.
6. The impermeable membrane upward-osmosis guiding system suitable for the phosphogypsum storage yard according to claim 5, characterized in that: the compactness of the clay cushion layer (2) is more than or equal to 95 percent, and the thickness of the clay cushion layer (2) is more than or equal to 60 cm.
7. The impermeable membrane upward-osmosis guiding system suitable for the phosphogypsum storage yard according to claim 6, which is characterized in that: the geotextile (5), the acid-resistant silica (6) and the plastic blind ditch (7) form a seepage guide body, the bottom width is 1.0m, the top width is 3.0m, and the slope ratio is 1: 2.0.
8. The impermeable membrane upward-osmosis guiding system suitable for the phosphogypsum storage yard according to claim 7, characterized in that: the phosphogypsum cushion layer (4) is positioned between the seepage guide body and the HDPE film (3), and the thickness is more than or equal to 60 cm.
9. The impermeable membrane upward-osmosis guiding system suitable for the phosphogypsum storage yard according to claim 8, characterized in that: the HDPE pipe (8) is a DN315 solid-wall pipe, water collected by the seepage guide bodies in the whole storage yard is guided and discharged to the outside of the storage yard, and the HDPE pipe (8) is connected with the plastic blind ditch (7) through a reducing tee joint and a four-way joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922035395.XU CN211341063U (en) | 2019-11-22 | 2019-11-22 | Seepage-preventing membrane upward seepage-guiding system suitable for phosphogypsum storage yard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922035395.XU CN211341063U (en) | 2019-11-22 | 2019-11-22 | Seepage-preventing membrane upward seepage-guiding system suitable for phosphogypsum storage yard |
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| Publication Number | Publication Date |
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| CN211341063U true CN211341063U (en) | 2020-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922035395.XU Active CN211341063U (en) | 2019-11-22 | 2019-11-22 | Seepage-preventing membrane upward seepage-guiding system suitable for phosphogypsum storage yard |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110747963A (en) * | 2019-11-22 | 2020-02-04 | 中国电建集团贵阳勘测设计研究院有限公司 | Seepage-preventing membrane upward seepage-guiding system suitable for phosphogypsum storage yard |
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- 2019-11-22 CN CN201922035395.XU patent/CN211341063U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110747963A (en) * | 2019-11-22 | 2020-02-04 | 中国电建集团贵阳勘测设计研究院有限公司 | Seepage-preventing membrane upward seepage-guiding system suitable for phosphogypsum storage yard |
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