CN1843923A - House-sealing method for dry-process piling yard of red mud - Google Patents
House-sealing method for dry-process piling yard of red mud Download PDFInfo
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- CN1843923A CN1843923A CN 200610200308 CN200610200308A CN1843923A CN 1843923 A CN1843923 A CN 1843923A CN 200610200308 CN200610200308 CN 200610200308 CN 200610200308 A CN200610200308 A CN 200610200308A CN 1843923 A CN1843923 A CN 1843923A
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Abstract
The invention discloses a method for sealing yard of dry red mud, comprising a impervious barrier (3) formed with clay layer (1) and impervious geomembrane (2); a drainage blanket (8) formed with drainage pipe (5) and sand and grave (7); the drainage pipe is connected with through-dam pipe (4) and is equipped with tillage soil layer (9), the tillage soil layer is planted with green sward (10); and the tillage soil layer is equipped with drainage ditch (7). The invention can meet demand of seepage control, drainage and greening by red mud yard.
Description
Technical field
The present invention relates to a kind of envelope storehouse method of stockyard, the envelope storehouse method of the dry-method red mud storage yard that discharges in particularly a kind of alumina producing.
Background technology
Red mud is the solid slag of discharging in the aluminum oxide production process, and the discharging of red mud is divided into the dry method discharging and wet method is discharged two kinds.The red mud of dry method discharging, the water ratio when entering the stockyard be less than 47%, through the stockyard after fixed, the surface drainage of seasoning, form the solid shape red mud accumulation body of water ratio about 26%, along with increasing step by step of sub-dam, the accumulation body height also raises gradually, and surperficial airing area dwindles gradually.Can not satisfy the airing needs when the storehouse top area is retracted to, or when having reached the stability Calculation limiting altitude and can not continue upwards to store up because of piling height, the stockyard loses use value, need seal the storehouse and handle.According to the relevant regulations of environment protection, the greening of should reclaiming behind the envelope storehouse, stockyard.
The envelope storehouse of red mud dump is different with common solid waste.Because wastewater from red mud is strong basicity, the antiseepage behind the red mud dump envelope storehouse is required more than common solid waste height.In the selection of the back plant of reclaiming, should select alkaline-resisting, the underdeveloped plant of root system, prevent that root system of plant from penetrating impervious barrier.
The envelope storehouse in the envelope storehouse of dry method red mud storage yard and wet red mud storage yard and other wet method mine tailing storehouse also has than big difference.Red mud water ratio in the wet red mud storage yard is higher, and its dam body intensity can be born higher hydraulic pressure power, and is less demanding to the yard drain behind the envelope storehouse.Dry method red mud storage yard is quite different, the water content of red mud accumulation body height directly has influence on the mechanical strength and the stability of stack in the storehouse, surperficial rainwater behind the requirement envelope storehouse can in time be discharged outside the storehouse, can not accumulate for a long time in the storehouse, and water exhaust system validity is had relatively high expectations.And the envelope storehouse method of dry-method red mud storage yard of the prior art not too meets the requirement of above-mentioned antiseepage, draining, greening and maintenance stockyard stability.
Summary of the invention
The objective of the invention is to: a kind of envelope storehouse method of dry method red mud storage yard is provided, and antiseepage, draining and the greening that can satisfy behind the dry method red mud storage yard envelope storehouse require and keep the stability in stockyard.
The present invention constitutes like this: a kind of envelope storehouse method of dry-method red mud storage yard, and impervious barrier 2 is laid on red mud layer 1 surface after dry-method red mud storage yard is stopped using earlier; Level runs through the dam-through pipe 4 more than one or on absolute altitude concordant with the impervious barrier upper surface on the sub-dam 3 of final stage, the dam-through pipe of inboard, the sub-dam of final stage connects one or more than one water shoots 5, have one or more water vent 6 on the water shoot, should be a little more than interface when water shoot is laid near the center, reservoir area; Below with sandy gravel 7 water shoot being buried in then, form layer of displacement 8; On layer of displacement, re-lay and plough soil layer 9, at the surperficial Turf Culture 10 of ploughing soil layer, at the intersection of ploughing soil layer and the sub-dam of final stage waterways 11 is set, the bottom in waterways also is connected with one or more than one dam-through pipes, the dam-through pipe in the outside, the sub-dam of final stage connects the straight water pipe 12 parallel with dam body, and straight water pipe is through to the Ba Jiao waterways on the sub-dam of next stage.
In the envelope storehouse method of above-mentioned dry-method red mud storage yard, impervious barrier 2 is formed by three layers, and bottom one deck is laid 300-500mm thick clay seam 13 and compacting earlier, re-lays one deck anti-seepage geomembrane 14, and then lays thick clay seam of one deck 300-500mm and compacting.
In the envelope storehouse method of aforesaid dry-method red mud storage yard, sandy gravel 7 laying depths of layer of displacement 8 are 300-500mm.
In the envelope storehouse method of aforesaid dry-method red mud storage yard, the laying depth of ploughing soil layer 9 is 400-600mm, and the surface of ploughing soil layer is a vertex with the center, reservoir area, with the gradient of 1%-3% to around the sub-dam of final stage tilt.
In the envelope storehouse method of aforesaid dry-method red mud storage yard, plough 9 kinds of turfs of planting 10 of soil layer and should select alkali proof kind.
In the envelope storehouse method of aforesaid dry-method red mud storage yard, the amount of rainfall that the caliber of the size in waterways 11, water shoot 5 and dam-through pipe 4 compiles according to the top, storehouse calculates to be determined, water shoot 5 can adopt steel pipe or the perforation cast iron pipe or the perforated plastic pipe of perforation.Dam-through pipe 4 can adopt steel pipe or cast iron pipe.
In the envelope storehouse method of aforesaid dry-method red mud storage yard, when clay soil source is not enough, can all or part of dried red mud substitute for clay layer 13 with compacting.
Compared with prior art, the envelope storehouse method of dry method red mud storage yard provided by the invention can satisfy antiseepage, draining and greening requirement after dry method red mud storage yard seals the storehouse, and environmental protection and afforestation effect are good, and keep the stability in stockyard.
Description of drawings
Accompanying drawing 1 is an envelope of the present invention dam structural representation;
Accompanying drawing 2 is the one-piece construction synoptic diagram on envelope of the present invention dam;
Being labeled as in the accompanying drawing: 1-red mud layer, the 2-impervious barrier, the sub-dam of 3-final stage, the 4-dam-through pipe, the 5-water shoot, the 6-water vent, the 7-sandy gravel, the 8-layer of displacement, 9-ploughs soil layer, 10-turf, 11-waterways, 12-straight water pipe, 13-clay seam, 14-anti-seepage geomembrane.
Embodiment
Embodiments of the invention: as shown in Figure 1, the red mud laminar surface after the stockyard is stopped using is laid 400mm thick clay seam 13 and compacting earlier, re-lays one deck anti-seepage geomembrane 14, and then lays thick clay seam 13 of 400mm and compacting, finishes the construction of impervious barrier.
Lay the thick sandy gravel layer of displacement 8 of 400mm on the impervious barrier, several perforated drain pipes 5 are set in the layer of displacement 8.Water shoot 5 is connected with dam-through pipe 4, ponding in the storehouse can be discharged to the Ba Jiao waterways on the sub-dam of next stage by dam-through pipe 4, discharges outside the storehouse downwards step by step again.
On the layer of displacement 8, lay the thick cultivated soil layer 9 of 500mm, ploughing soil layer 9 surfaces is vertex with the center, reservoir area, with the sub-dam around the gradient aspect of 1%-3%.At the intersection of ploughing soil layer 9 surfaces and sub-dam waterways 11 is set, every waterways 11 is provided with a dam-through pipe 4 the surperficial rainwater of collecting in the ditch is passed the Ba Jiao waterways that sub-dam is discharged to the sub-dam of next stage, discharges outside the storehouse downwards step by step again.
At last, at the surperficial Turf Culture 10 of ploughing soil layer 9, finish envelope storehouse engineering.Turf 10 should be selected alkali proof kind, generally can select the identical kind of turf protective layer with sub-dam outer slope.
The amount of rainfall that the caliber of the size in waterways 11, water shoot 5 and dam-through pipe 4 compiles according to the top, storehouse calculates to be determined.
When clay soil source is not enough, can all or part of dried red mud substitute for clay layer with compacting.
Water shoot 5 can adopt steel pipe or the perforation cast iron pipe or the perforated plastic pipe of perforation.Dam-through pipe 4 can adopt steel pipe or cast iron pipe.
Claims (7)
1. the envelope storehouse method of a dry-method red mud storage yard is characterized in that: red mud layer (1) surface after dry-method red mud storage yard is stopped using, laying impervious barrier (2) earlier; The level on the absolute altitude concordant with the impervious barrier upper surface of going up on the sub-dam of final stage (3) runs through the dam-through pipe (4) more than one or, the dam-through pipe of inboard, the sub-dam of final stage connects one or more than one water shoots (5), have one or more water vent (6) on the water shoot, should be a little more than interface when water shoot is laid near the center, reservoir area; Use then below sandy gravel (7) is buried in water shoot, form layer of displacement (8); On layer of displacement, re-lay cultivated soil layer (9), at the surperficial Turf Culture (10) of ploughing soil layer, at the intersection of ploughing soil layer and the sub-dam of final stage waterways (11) is set, the bottom in waterways also is connected with one or more than one dam-through pipes, the dam-through pipe in the outside, the sub-dam of final stage connects the straight water pipe (12) parallel with dam body, and straight water pipe is through to the Ba Jiao waterways on the sub-dam of next stage.
2. the envelope storehouse method of dry-method red mud storage yard according to claim 1, it is characterized in that: impervious barrier (2) is formed by three layers, bottom one deck is laid thick clay seam (13) and the compacting of 300-500mm earlier, re-lay one deck anti-seepage geomembrane (14), and then lay thick clay seam of one deck 300-500mm and compacting.
3. the envelope storehouse method of dry-method red mud storage yard according to claim 1, it is characterized in that: sandy gravel (7) laying depth of layer of displacement (8) is 300-500mm.
4. the envelope storehouse method of dry-method red mud storage yard according to claim 1 is characterized in that: the laying depth of ploughing soil layer (9) is 400-600mm, and the surface of ploughing soil layer is a vertex with the center, reservoir area, with the gradient of 1%-3% to around the sub-dam of final stage tilt.
5. the envelope storehouse method of dry-method red mud storage yard according to claim 1 is characterized in that: the turf (10) of ploughing soil layer (9) plantation should be selected alkali proof kind.
6. the envelope storehouse method of dry-method red mud storage yard according to claim 1, it is characterized in that: the amount of rainfall that the caliber of the size of waterways (11), water shoot (5) and dam-through pipe (4) compiles according to the top, storehouse calculates to be determined, water shoot can adopt steel pipe or the perforation cast iron pipe or the perforated plastic pipe of perforation; Dam-through pipe can adopt steel pipe or cast iron pipe.
7. the envelope storehouse method of dry-method red mud storage yard according to claim 1 and 2 is characterized in that: when clay soil source is not enough, and can all or part of dried red mud substitute for clay layer (13) with compacting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006102003086A CN1843923B (en) | 2006-04-03 | 2006-04-03 | House-sealing method for dry-process piling yard of red mud |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006102003086A CN1843923B (en) | 2006-04-03 | 2006-04-03 | House-sealing method for dry-process piling yard of red mud |
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| CN1843923A true CN1843923A (en) | 2006-10-11 |
| CN1843923B CN1843923B (en) | 2011-01-19 |
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| CN2006102003086A Active CN1843923B (en) | 2006-04-03 | 2006-04-03 | House-sealing method for dry-process piling yard of red mud |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101032203B (en) * | 2007-03-22 | 2011-07-06 | 中国铝业股份有限公司 | Construction method for laying growth matrix on side slope of red mud storage yard |
| CN102487695A (en) * | 2011-12-12 | 2012-06-13 | 无锡市政设计研究院有限公司 | Green belt for roads |
| CN102671906A (en) * | 2012-05-05 | 2012-09-19 | 段明丰 | Method for processing coal gangue and red mud |
| CN104179167A (en) * | 2013-05-21 | 2014-12-03 | 贵阳铝镁设计研究院有限公司 | Method and structure for pond closure of ash storage yard |
| CN105696543A (en) * | 2014-11-25 | 2016-06-22 | 贵阳铝镁设计研究院有限公司 | Dam front drainage method for sub-dam building in red mud stacking area |
| CN106034458A (en) * | 2016-06-14 | 2016-10-26 | 中国环境科学研究院 | Method for preventing red mud stacking field from dust and environment pollution |
| CN106613138A (en) * | 2016-11-16 | 2017-05-10 | 西施生态科技股份有限公司 | Ecological restoration method of solid waste yards |
| CN110130307A (en) * | 2019-05-09 | 2019-08-16 | 河海大学 | A kind of ecological restoration of mine system and ecological restoring method |
| CN112655515A (en) * | 2020-12-16 | 2021-04-16 | 中铝环保生态技术(湖南)有限公司 | Method for converting red mud into soil |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1546800A (en) * | 2003-12-08 | 2004-11-17 | 中国铝业股份有限公司 | Damming method using red mud |
| CN100362173C (en) * | 2004-07-16 | 2008-01-16 | 贵阳铝镁设计研究院 | Drainage assembly of dry process red mud stockyard outer dam |
| CN1620850A (en) * | 2005-02-04 | 2005-06-01 | 北京华美绮丽生态环保技术有限公司 | Method for grassing in dry-extraction red mud yard |
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2006
- 2006-04-03 CN CN2006102003086A patent/CN1843923B/en active Active
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101032203B (en) * | 2007-03-22 | 2011-07-06 | 中国铝业股份有限公司 | Construction method for laying growth matrix on side slope of red mud storage yard |
| CN102487695A (en) * | 2011-12-12 | 2012-06-13 | 无锡市政设计研究院有限公司 | Green belt for roads |
| CN102671906A (en) * | 2012-05-05 | 2012-09-19 | 段明丰 | Method for processing coal gangue and red mud |
| CN102671906B (en) * | 2012-05-05 | 2015-03-11 | 段明丰 | Method for processing coal gangue and red mud |
| CN104179167A (en) * | 2013-05-21 | 2014-12-03 | 贵阳铝镁设计研究院有限公司 | Method and structure for pond closure of ash storage yard |
| CN104179167B (en) * | 2013-05-21 | 2016-02-10 | 贵阳铝镁设计研究院有限公司 | A kind of lime-ash stockyard close storehouse method and structure |
| CN105696543A (en) * | 2014-11-25 | 2016-06-22 | 贵阳铝镁设计研究院有限公司 | Dam front drainage method for sub-dam building in red mud stacking area |
| CN105696543B (en) * | 2014-11-25 | 2019-12-03 | 贵阳铝镁设计研究院有限公司 | A kind of method that dam front row is seeped when red mud dump constructs sub- dam |
| CN106034458A (en) * | 2016-06-14 | 2016-10-26 | 中国环境科学研究院 | Method for preventing red mud stacking field from dust and environment pollution |
| CN106613138A (en) * | 2016-11-16 | 2017-05-10 | 西施生态科技股份有限公司 | Ecological restoration method of solid waste yards |
| CN110130307A (en) * | 2019-05-09 | 2019-08-16 | 河海大学 | A kind of ecological restoration of mine system and ecological restoring method |
| CN112655515A (en) * | 2020-12-16 | 2021-04-16 | 中铝环保生态技术(湖南)有限公司 | Method for converting red mud into soil |
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| CN1843923B (en) | 2011-01-19 |
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Owner name: GUIYANG ALUMINIUM AND MAGNESIUM DESIGN INSTITUTE C Free format text: FORMER OWNER: GUIYANG ALUMINIUM AND MAGNESIUM DESIGN INST. Effective date: 20110524 |
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Free format text: CORRECT: ADDRESS; FROM: 550004 NO. 208, BEIJING ROAD, GUIYANG CITY, GUIZHOU PROVINCE TO: 550081 NO.2, JINZHU ROAD, JINYANG NEW DISTRICT, GUIYANG CITY, GUIZHOU PROVINCE |
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Effective date of registration: 20110524 Address after: 550081 Guiyang Province, Jinyang New District, Zhu Zhu Road, No. 2 Patentee after: Guiyang Aluminum & Magnesium Design Institute Co., Ltd. Address before: 550004 No. 208, Beijing Road, Guiyang, Guizhou Patentee before: Guiyang Aluminium and Magnesium Design Inst. |