DE3537086A1 - Underwater brown coal mining plant - uses treatment at cutting point to prevent humin separation, and forms underwater embankment from separated soil - Google Patents
Underwater brown coal mining plant - uses treatment at cutting point to prevent humin separation, and forms underwater embankment from separated soilInfo
- Publication number
- DE3537086A1 DE3537086A1 DE19853537086 DE3537086A DE3537086A1 DE 3537086 A1 DE3537086 A1 DE 3537086A1 DE 19853537086 DE19853537086 DE 19853537086 DE 3537086 A DE3537086 A DE 3537086A DE 3537086 A1 DE3537086 A1 DE 3537086A1
- Authority
- DE
- Germany
- Prior art keywords
- underwater
- brown coal
- humin
- water
- separation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000003077 lignite Substances 0.000 title claims abstract description 14
- 238000005065 mining Methods 0.000 title claims description 7
- 238000000926 separation method Methods 0.000 title abstract description 4
- 239000002663 humin Substances 0.000 title abstract 2
- 239000002689 soil Substances 0.000 title 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 238000000605 extraction Methods 0.000 claims abstract description 6
- 239000000126 substance Substances 0.000 claims description 3
- 230000028327 secretion Effects 0.000 claims 1
- 238000007667 floating Methods 0.000 abstract description 2
- 229920003023 plastic Polymers 0.000 abstract description 2
- 239000004033 plastic Substances 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract 2
- 239000013049 sediment Substances 0.000 abstract 1
- 239000011343 solid material Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 description 5
- 239000003673 groundwater Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 1
- 239000002981 blocking agent Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C41/00—Methods of underground or surface mining; Layouts therefor
- E21C41/26—Methods of surface mining; Layouts therefor
- E21C41/28—Methods of surface mining; Layouts therefor for brown or hard coal
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C50/00—Obtaining minerals from underwater, not otherwise provided for
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Remote Sensing (AREA)
- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
Abstract
Description
Die Erfindung betrifft den Ersatz der aus trockener Grube im Tagebau betriebenen Braunkohlegewinnung durch ein Ge winnungsverfahren unter Wasser.The invention relates to the replacement of the dry pit Open-cast lignite mining by ge recovery process under water.
Es ist bekannt, daß die Braunkohle durch Abpumpen des Grund wassers im Tagebau aus trockener Grube erfolgt. Pro gewonnene Tonne Braunkohle müssen bis zu 10 Tonnen Grundwasser abge pumpt werden. Es ist vorgeschlagen worden, die Braunkohle mit Förderverfahren der Meerestechnik zu gewinnen, ein technisch realisierbares Gewinnungsverfahren unter Wasser ist jedoch nicht bekannt.It is known that the brown coal by pumping out the bottom water in the open pit from a dry pit. Per won Tons of brown coal have to dump up to 10 tons of groundwater be pumped. It has been suggested using lignite Funding procedures of marine engineering to win a technical However, the extraction process under water is feasible not known.
Einem Unterwasserabbau von Braunkohle stand bisher entgegen, daß der unter Wasser zu verkippende Abraum Schlamm wird, kei nen Böschungswinkel bildet und der Restsee aus Schlamm sich nur über Generationen verfestigt. Ihm stand weiterhin entgegen, daß die Braunkohle unter Wasser Huminstoffe absondert, die sich mit dem Wasser verbinden und das Grundwasser verseuchen.So far, there has been an underwater mining of brown coal, that the overburden to be dumped under water becomes sludge A slope angle forms and the remaining lake is made of mud only solidified over generations. He continued to oppose that the lignite secretes humic substances under water, which are connect with the water and contaminate the groundwater.
Der Erfindung liegt die Aufgabe zugrunde, durch ein spezielles Unterwasser-Verkippungsverfahren den Abraum unter Wasser fest zu lagern, so daß er große Böschungswinkel einnimmt und nicht verschlammt, und durch ein spezielles Abbauverfahren die abge sonderten Huminstoffe bindet.The invention has for its object by a special Underwater tilting method firmly traps the overburden under water to store so that it takes large embankment angles and not muddy, and the abge through a special degradation process secreted humic substances binds.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß auf der Abbauseite das den Gewinnungskopf (1) umgebende Wasser abge saugt, über ein die Huminstoffe bindendes Mittel (z. B. Kalk) geleitet wird, das die Huminstoffe zur Ausflockung bringt, die dann weiterhin verarbeitet werden können. Die freien Braun kohleflözkanten (15) werden durch Übersprühung mit einem Sperr mittel (z. B. Kunststoff, Beton) gegen die Absonderung von Hu minstoffen gesichert. This object is achieved in that on the mining side, the water surrounding the extraction head ( 1 ) sucks off, is passed over a binding agent (z can. The free brown coal seam edges ( 15 ) are secured by spraying with a blocking agent (e.g. plastic, concrete) against the segregation of minerals.
Das gewonnene Kohle-Wasser-Gemisch wird in (7) entwässert.The coal-water mixture obtained is dewatered in ( 7 ).
Das geförderte Abraum-Wasser-Gemisch wird in eine Wasserab scheideanlage (Separierungsanlage) (9) geleitet, von der der Abraum zur Unterwasserkippe (10) gelangt, in der er verfestigt wird und mit einer Böschungswinkelstütze verkippt wird.The extracted overburden-water mixture is passed into a water separating system (separation system) ( 9 ), from which the overburden reaches the underwater dump ( 10 ), in which it is solidified and tilted with a slope angle support.
Das in (9) separierte Wasser wird entweder durch Rohrlei tungen abgepumpt oder in hängenden Silos unter (9) zur wei teren Sedimentierung gelagert.The water separated in ( 9 ) is either pumped out through pipelines or stored in hanging silos under ( 9 ) for further sedimentation.
Die mit dieser Erfindung erzielten Vorteile liegen darin, daß in der Braunkohlengewinnung das Grundwasser der Region nicht mehr abgepumpt zu werden braucht und Abraumhalden für die Lage rung des Abraums nicht mehr erforderlich sind. The advantages achieved with this invention are that the region's groundwater is not in lignite mining more needs to be pumped out and tailings for the location overburden are no longer required.
Fig. 1: Unterwasser-Braunkohlegewinnung Fig. 1: Underwater lignite extraction
- - mit Gewinnungskopf (1), Steigleitung des Abbau- Wassergemisches (2) zur schwimmenden Plattform (3) mit Pumpstation,Vorentwässerung und Übergabe zur Kraftwerksseite (8) bzw. zur Verkippungsseite (10)- With extraction head ( 1 ), riser of the mining water mixture ( 2 ) to the floating platform ( 3 ) with pumping station, pre-drainage and transfer to the power plant side ( 8 ) or to the tilting side ( 10 )
- - mit auf Pontons (5) gelagertem Horizontaltransport (4) des Kohle-Wassergemisches zur Entwässerungsstation (7), von der das Wasser zurück in die Grube und die Kohle ins Kraftwerk (8) geleitet wird,- With horizontal transport ( 4 ) of the coal-water mixture stored on pontoons ( 5 ) to the dewatering station ( 7 ), from which the water is fed back into the pit and the coal into the power plant ( 8 ),
- - mit auf Pontons gelagertem Horizontaltransport (4) des Abraum-Wassergemisches in die Separierungsanlage (9), von der das separierte Wasser über Rohrleitungen abgepumpt oder in unter (9) hängenden Silos zur weiteren Sedimentierung gelagert wird, und der Abraum zur Unter wasserkippe (10) geleitet wird, wo er mittels Druckrohr und Böschungswinkelstützplatte verfestigt verkippt wird.- With horizontal transport ( 4 ) of the overburden-water mixture stored on pontoons into the separation system ( 9 ), from which the separated water is pumped out via pipes or stored in silos hanging under ( 9 ) for further sedimentation, and the overburden to the underwater dump ( 10 ) is directed where it is solidified by means of a pressure pipe and slope angle support plate.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19853537086 DE3537086A1 (en) | 1985-10-18 | 1985-10-18 | Underwater brown coal mining plant - uses treatment at cutting point to prevent humin separation, and forms underwater embankment from separated soil |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19853537086 DE3537086A1 (en) | 1985-10-18 | 1985-10-18 | Underwater brown coal mining plant - uses treatment at cutting point to prevent humin separation, and forms underwater embankment from separated soil |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3537086A1 true DE3537086A1 (en) | 1987-04-30 |
Family
ID=6283844
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19853537086 Withdrawn DE3537086A1 (en) | 1985-10-18 | 1985-10-18 | Underwater brown coal mining plant - uses treatment at cutting point to prevent humin separation, and forms underwater embankment from separated soil |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE3537086A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009079686A1 (en) * | 2007-12-21 | 2009-07-02 | National Power Australia Investments Limited | Method for producing a lignite product |
CN102900440A (en) * | 2011-12-28 | 2013-01-30 | 龙口矿业集团有限公司 | Undersea fully mechanized top coal caving mining method |
CN104806245A (en) * | 2015-03-02 | 2015-07-29 | 河南理工大学 | Protecting method for long-wall strip type coordinated skip-mining under earth and rockfill dams |
-
1985
- 1985-10-18 DE DE19853537086 patent/DE3537086A1/en not_active Withdrawn
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009079686A1 (en) * | 2007-12-21 | 2009-07-02 | National Power Australia Investments Limited | Method for producing a lignite product |
AU2008341004B2 (en) * | 2007-12-21 | 2012-11-15 | Australian Power Partners Bv | Method for producing a lignite product |
CN102900440A (en) * | 2011-12-28 | 2013-01-30 | 龙口矿业集团有限公司 | Undersea fully mechanized top coal caving mining method |
CN102900440B (en) * | 2011-12-28 | 2015-11-25 | 龙口矿业集团有限公司 | Lower comprehensive taking and placing top, sea coal-mining method |
CN104806245A (en) * | 2015-03-02 | 2015-07-29 | 河南理工大学 | Protecting method for long-wall strip type coordinated skip-mining under earth and rockfill dams |
CN104806245B (en) * | 2015-03-02 | 2017-03-22 | 河南理工大学 | Protecting method for long-wall strip type coordinated skip-mining under earth and rockfill dams |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8139 | Disposal/non-payment of the annual fee |