CN1837507A - Dry process for protecting sub-dam red mud dump - Google Patents
Dry process for protecting sub-dam red mud dump Download PDFInfo
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- CN1837507A CN1837507A CN 200510200169 CN200510200169A CN1837507A CN 1837507 A CN1837507 A CN 1837507A CN 200510200169 CN200510200169 CN 200510200169 CN 200510200169 A CN200510200169 A CN 200510200169A CN 1837507 A CN1837507 A CN 1837507A
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Abstract
The invention relates to a dry method red mud pile dam protective method, which arranges material along the inner slope of sub dam to form the red mud protective layer; arranges protective layer at the top of sub dam, a coat at the outer slope, a discharge groove at the angle of sub dam, a discharge tube above the groove and a water discharge tube at the lowest point at the middle part of groove. The invention has simple operation, lower cost, and better effect.
Description
Technical field:
The present invention relates to the guard method on the sub-dam of a kind of alumina producer dry method red mud storage yard.
Technical background:
Red mud is the waste residue that produces in the alumina producing.It is to begin to explore more red mud disposal options in the domestic newly-built in recent years alumina producer that dry method red mud is stored up.The enforcement of dry method red mud storage yard generally is to construct the initial dam that can form certain storage capacity earlier, is the dam foundation with the red mud layer again after waiting to pile with and constructs the sub-dam of one-level with red mud as dam material, constructs the sub-dam of secondary after the sub-dam of one-level piles with, step by step upwards until stockyard Feng Ku.
Dry method red mud storage yard is owing to limited by arid cycle, and the general red mud that is dried to optimum moisture content that adopts is constructed Zi Ba with rolled-on method.Sub-dam dam body under long-term solar radiation can produce dry and cracked phenomenon, and during rainfall, the part rainwater infiltrates dam body inside along the crack, reduce the mechanical property of dam body, the rainwater of swash surface can leach the attached alkali of red mud (PH＞9) and be with lower part red mud particle, flow to the sub-dam of next stage along dam crest, dam slope and form stronger washing away, finally contain the rainwater of red mud can be outside initial dam sloping cross flow contaminated environment outside the stockyard.
Summary of the invention:
The objective of the invention is to: provide a kind of protection sub-dam dam crest and interior outer slope to avoid sunlight exposure and rain erosion; the rainwater that drops to sub-dam dam crest and outer slope is carried out organized collection and discharging; prevent that red mud and attached alkali are brought into the guard method on the sub-dam of dry method red mud storage yard of rainwater pollution environment, to solve the problem that prior art exists.
The present invention is achieved in that it is earlier with vomit pipe (4) domatic red mud material of putting in sub-dam; form inner slope flushing mud topping (6); at sub-dam dam crest topping (1) is set again; at sub-dam outer slope covering layer (2) is set; Zi Ba Ba Jiao is provided with open drain (3); vomit pipe (4) is established in top, open drain (3), and the minimum point in the middle of open drain (3) is provided with the import of gutter (5).
The thickness of interior domatic topping (6) is 0.3-0.5 rice.
Topping (1) adopts waterproof material to lay at dam crest, and thickness is 0.25-0.5 rice.
Dam crest topping (1) is with the gradient sloping toward open drain (3) of 1%-5%.
On sub-dam outer slope, lay the covering layer (2) of thick 0.05-0.5 rice.
The covering layer structure can adopt the thin concrete square of one of following form: a, empty flower to arrange; B, injection concrete slurry form topping; Cover peat on c, the sub-dam outer slope, more alkaline-resisting turf or other vines plants of plantation on soil; D, elder generation form grid with piece stone or sheet rubber at outer slope, again filling peat in grid, alkaline-resisting turf or other vines plants of plantation on soil then.
Open drain (3) adopts piece stone or concrete to build by laying bricks or stones.
The length of open drain (3) is identical with sub-dam length degree.
Gutter (5) lays downwards along outer slope then with the gradient aspect outer slope of 1%-5%.
The present invention compared with prior art, it is simple to have job practices, sun-proof, the anti-rainwater that efficiently solves the sub-dam of red mud washes away problem, has reduced the influence of exposing to the sun and rain to dam body intensity.The unpolluted rainwater in surface, sub-dam is in an organized way collected by gutter and gutter and is got rid of, and has reduced the water yield that enters the wastewater from red mud recovery system, thereby has reduced the pollution to environment of the rainwater that contains red mud.
Description of drawings:
Accompanying drawing 1 is principle of compositionality figure of the present invention;
Accompanying drawing 2 is an overall structure schematic diagram of the present invention.
The specific embodiment:
Embodiments of the invention: at first construct initial dam, form certain storage capacity.After piling with, initial dam constructs the sub-dam of one-level.Sub-dam builds up the back and lays topping (1) and compacting at dam crest.Ba Jiao is provided with open drain (3), sets up cloth tube (4) on gutter (3), and cloth tube (4) connects red mud conveyance conduit in the factory, along the domatic red mud material of putting the about 0.3-0.5 rice of a bed thickness earlier in the sub-dam, forms interior domatic topping (6) with cloth tube (4).Lay the thick topping (1) of 0.25-0.5 rice at dam crest, can adopt clay or other waterproofing materialss of compacting.Simultaneously, on sub-dam outer slope, lay covering layer (2).Minimum point in the middle of the gutter (3) is established the import of drainage pipe (5), and drainage pipe (5) lays downwards along outer slope then with the gradient aspect outer slope of 1%-5%, links to each other with gutter on the next stage dam.Drop to the rainwater on surface, sub-dam, collect and discharging downwards step by step, discharge outside the stockyard at last by gutter-gutter.After the sub-dam of one-level piles with, use the same method and construct sub-dam of secondary and protective device thereof, until stockyard Feng Ku.
The general thick 0.05-0.5 rice of the covering layer (2) of sub-dam outer slope, its structure can adopt the thin concrete square of the empty flower of one of following form: a. to arrange; B. on sub-dam outer slope, spray the thick concrete slurry of 0.05-0.1 rice and form covering layer; C. on sub-dam outer slope, cover the thick peat of 0.3-0.5 rice, more alkaline-resisting turf or other vines plants of plantation on soil; D. earlier form grid at outer slope, again filling peat in grid, alkaline-resisting turf or other vines plants of plantation on soil then with piece stone or sheet rubber.Floristics is selected according to local climate and edaphic condition.
Dam crest gutter, sub-dam (3) can be constructed with cemented rock or plain concrete, and gutter length is identical with sub-dam length degree, and its cross dimensions and gutter caliber and the gradient can be determined as calculated according to meteorological condition.
Behind the above end-of-job, can effectively solve problems such as sun-proof, the anti-rainwater in the sub-dam of dry method red mud storage yard washes away, environment pollution, both protect sub-dam, also protect environment.
Claims (9)
1. the guard method on the sub-dam of dry method red mud storage yard; it is characterized in that: it is earlier with vomit pipe (4) domatic red mud material of putting in sub-dam; form inner slope flushing mud topping (6); at sub-dam dam crest topping (1) is set again; at sub-dam outer slope covering layer (2) is set; Zi Ba Ba Jiao is provided with open drain (3), and vomit pipe (4) is established in open drain (3) top, and the minimum point in the middle of open drain (3) is provided with the import of gutter (5).
2. according to the guard method on the sub-dam of the described dry method red mud storage yard of claim 1, it is characterized in that: the thickness of interior domatic topping (6) is 0.3-0.5 rice.
3. according to the guard method on the sub-dam of the described dry method red mud storage yard of claim 1, it is characterized in that: topping (1) adopts waterproof material to lay at dam crest, and thickness is 0.25-0.5 rice.
4. according to the guard method on claim 1 or the sub-dam of 3 described dry method red mud storage yards, it is characterized in that: dam crest topping (1) is with the gradient sloping toward open drain (3) of 1%-5%.
5. according to the guard method on the sub-dam of the described dry method red mud storage yard of claim 1, it is characterized in that: the covering layer (2) of on sub-dam outer slope, laying thick 0.05-0.5 rice.
6. according to the guard method on claim 1 or the sub-dam of 5 described dry method red mud storage yards, it is characterized in that: the covering layer structure can adopt one of following form:
The thin concrete square of a, empty flower is arranged;
B, injection concrete slurry form topping;
Cover peat on c, the sub-dam outer slope, more alkaline-resisting turf or other vines plants of plantation on soil;
D, elder generation form grid with piece stone or sheet rubber at outer slope, again filling peat in grid, alkaline-resisting turf or other vines plants of plantation on soil then.
7. according to the guard method on the sub-dam of the described dry method red mud storage yard of claim 1, it is characterized in that: adopt building block stone or concrete masonry units open drain (3) at Ba Jiao.
8. according to the guard method on claim 1 or the sub-dam of 7 described dry method red mud storage yards, it is characterized in that: the length of open drain (3) is identical with sub-dam length degree.
9. according to the guard method on the sub-dam of the described dry method red mud storage yard of claim 1, it is characterized in that: gutter (5) lays downwards along outer slope then with the gradient aspect outer slope of 1%-5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005102001692A CN100485135C (en) | 2005-03-23 | 2005-03-23 | Dry process for protecting sub-dam red mud dump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005102001692A CN100485135C (en) | 2005-03-23 | 2005-03-23 | Dry process for protecting sub-dam red mud dump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1837507A true CN1837507A (en) | 2006-09-27 |
| CN100485135C CN100485135C (en) | 2009-05-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2005102001692A Active CN100485135C (en) | 2005-03-23 | 2005-03-23 | Dry process for protecting sub-dam red mud dump |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101936006A (en) * | 2010-09-01 | 2011-01-05 | 中冶沈勘工程技术有限公司 | Tubular microporous tailing damming method |
| CN102787612A (en) * | 2012-08-16 | 2012-11-21 | 鞍钢集团矿业公司 | Process for constructing substrate dam of refuse dump |
| CN109056642A (en) * | 2018-09-18 | 2018-12-21 | 中国恩菲工程技术有限公司 | The construction process of tailing dam, tailing dam and tailing dam |
-
2005
- 2005-03-23 CN CNB2005102001692A patent/CN100485135C/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101936006A (en) * | 2010-09-01 | 2011-01-05 | 中冶沈勘工程技术有限公司 | Tubular microporous tailing damming method |
| CN102787612A (en) * | 2012-08-16 | 2012-11-21 | 鞍钢集团矿业公司 | Process for constructing substrate dam of refuse dump |
| CN109056642A (en) * | 2018-09-18 | 2018-12-21 | 中国恩菲工程技术有限公司 | The construction process of tailing dam, tailing dam and tailing dam |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100485135C (en) | 2009-05-06 |
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Owner name: GUIYANG ALUMINUM AND MAGNESIUM DESIGN INSTITUTE CO Free format text: FORMER NAME: GUIYANG ALUMINIUM AND MAGNESIUM DESIGN INST. |
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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. |