CN101705822A - No-dilution isolation mining method for mid and thick sand deposits in shallow sea - Google Patents
No-dilution isolation mining method for mid and thick sand deposits in shallow sea Download PDFInfo
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- CN101705822A CN101705822A CN200910253514A CN200910253514A CN101705822A CN 101705822 A CN101705822 A CN 101705822A CN 200910253514 A CN200910253514 A CN 200910253514A CN 200910253514 A CN200910253514 A CN 200910253514A CN 101705822 A CN101705822 A CN 101705822A
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- container bag
- tailings
- dilution
- marine
- sand
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Abstract
The invention relates to a no-dilution isolation mining method for mid and thick sand deposits in shallow sea. Tailings after roughening treatment on a dredger are filled into shipping sacks to backfill into sea; and the shipping sacks are high-strength and degradable plastic woven bags, which are pervious to water but not pervious to the tailings, so that the tailings and ore sand are effectively isolated to realize no-dilution exploitation.
Description
Technical field
The invention belongs to the marine mining technical field
Technical background
Placer existing mining technology in shallow sea is a three-step approach: (1) is adopted the sand ship and is extracted the seabed ore in sand form, the 2. on-the-spot rough concentrate that extracts, and 3. tailings is filled out go back to the seabed; But for thick placer body in the movable strong coastal waters of morning and evening tides, unquarried ore in sand form and backfill tailings can very fast mixing in the exploitation process, can not form isolating trenches, cause great loss and dilution thus; As Hainan zirconium titanium placer, 8 meters of orebody thicknesses, nearly 10 meters of the depth of water, during pilot production, back production hole groove is filled and led up by morning and evening tides soon, and tailings and ore in sand form mix, and can't exploit; Main purpose of the present invention is to solve an ore in sand form and a tailings isolation difficult problem, realizes no dilution exploitation.
Summary of the invention
Tailing bin is set adopting sand marine railway tail bit, a plurality of discharge gates are installed; Repack the container of transloading equipment into the open circles tubular, hang container bag in the tube; By discharge gate tailings is packed into behind the container bag, seal with sewing machine; Transloading equipment is transported to last person's chute with the tailings container bag, enters marine by planned position; Based on sinking, horizontal movement is very little under tidal action for the tailings container bag, can form stable fill dam in the seabed, realizes subregion isolation exploitation; The container bag that the present invention adopts is the woven plastic bag of a kind of high strength, easy degraded, and the capacity of every container bag is traditionally arranged to be 2～3 cubic metres, and its characteristic is permeable saturating sand, tailings and ore in sand form effectively can be isolated the zero rate of dilution on the realization theory; The degraded timeliness of the selected plastic material of container bag generally should be in 20～30 years, to the marine environment influence not quite; Mining also can be used grab loader recovery section container bag after finishing, and further reduces marine pollution; 6～8 yuans in every bag of container bag manufacturing cost reference price has 40～50% tailings need pack backfill approximately, and all the other tailings can be backfilling in the enclosure space that container bag surrounds, and estimation tailings processing cost is no more than 2 yuans every cubic metre.
Claims (1)
1. the specific practice of the no dilution isolation mining method of thick placer is as follows in the shallow sea:
Tailing bin is set adopting sand marine railway tail bit, a plurality of discharge gates are installed; Repack the container of transloading equipment into the open circles tubular, hang container bag in the tube; By discharge gate tailings is packed into behind the container bag, seal with sewing machine; Transloading equipment is transported to last person's chute with the tailings container bag, enters marine by planned position; Based on sinking, horizontal movement is very little under tidal action for the tailings container bag, can form stable fill dam in the seabed, realizes subregion isolation exploitation; The container bag that the present invention adopts is the woven plastic bag of a kind of high strength, easy degraded, and the capacity of every container bag is traditionally arranged to be 2～3 cubic metres, and its characteristic is permeable saturating sand, tailings and ore in sand form effectively can be isolated the zero rate of dilution on the realization theory; The degraded timeliness of the selected plastic material of container bag generally should be in 20～30 years, to the marine environment influence not quite; Mining also can be used grab loader recovery section container bag after finishing, and further reduces marine pollution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910253514A CN101705822B (en) | 2009-11-28 | 2009-11-28 | No-dilution isolation mining method for mid and thick sand deposits in shallow sea |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910253514A CN101705822B (en) | 2009-11-28 | 2009-11-28 | No-dilution isolation mining method for mid and thick sand deposits in shallow sea |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101705822A true CN101705822A (en) | 2010-05-12 |
| CN101705822B CN101705822B (en) | 2012-10-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910253514A Expired - Fee Related CN101705822B (en) | 2009-11-28 | 2009-11-28 | No-dilution isolation mining method for mid and thick sand deposits in shallow sea |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101705822B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603666A (en) * | 2013-11-11 | 2014-02-26 | 铜陵有色设计研究院 | Tailing pond sand excavation method |
| CN103821518A (en) * | 2014-02-13 | 2014-05-28 | 湖南工程学院 | Method for collecting polymetallic sulfides on seabed |
| CN104564081A (en) * | 2014-02-18 | 2015-04-29 | 广东安元矿业勘察设计有限公司 | Isolating method for ocean placer loss and dilution free exploitation |
| CN104895568A (en) * | 2015-04-25 | 2015-09-09 | 广东安元矿业勘察设计有限公司 | Tailing sand isolation simple method used in shallow sea placer exploitation |
-
2009
- 2009-11-28 CN CN200910253514A patent/CN101705822B/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603666A (en) * | 2013-11-11 | 2014-02-26 | 铜陵有色设计研究院 | Tailing pond sand excavation method |
| CN103603666B (en) * | 2013-11-11 | 2015-06-17 | 铜陵有色设计研究院 | Tailing pond sand excavation method |
| CN103821518A (en) * | 2014-02-13 | 2014-05-28 | 湖南工程学院 | Method for collecting polymetallic sulfides on seabed |
| CN103821518B (en) * | 2014-02-13 | 2015-10-21 | 湖南工程学院 | A kind of seabed Polymetallic sulphide acquisition method |
| CN104564081A (en) * | 2014-02-18 | 2015-04-29 | 广东安元矿业勘察设计有限公司 | Isolating method for ocean placer loss and dilution free exploitation |
| CN104895568A (en) * | 2015-04-25 | 2015-09-09 | 广东安元矿业勘察设计有限公司 | Tailing sand isolation simple method used in shallow sea placer exploitation |
| CN104895568B (en) * | 2015-04-25 | 2019-12-17 | 广东安元矿业勘察设计有限公司 | simple method for isolating tailings in shallow sea placer mining |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101705822B (en) | 2012-10-10 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121010 Termination date: 20141128 |
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| EXPY | Termination of patent right or utility model |