EP1496195A1 - Verfahren zur Gewinnung tonmineralhaltiger Rohstoffe - Google Patents
Verfahren zur Gewinnung tonmineralhaltiger Rohstoffe Download PDFInfo
- Publication number
- EP1496195A1 EP1496195A1 EP04015973A EP04015973A EP1496195A1 EP 1496195 A1 EP1496195 A1 EP 1496195A1 EP 04015973 A EP04015973 A EP 04015973A EP 04015973 A EP04015973 A EP 04015973A EP 1496195 A1 EP1496195 A1 EP 1496195A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- suspension
- deposit
- earth
- liquid jet
- liquid
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 33
- 239000002734 clay mineral Substances 0.000 title claims description 21
- 239000002994 raw material Substances 0.000 title claims description 18
- 239000000725 suspension Substances 0.000 claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000002245 particle Substances 0.000 claims abstract description 15
- 238000011065 in-situ storage Methods 0.000 claims abstract description 5
- 239000007788 liquid Substances 0.000 claims description 21
- 239000011435 rock Substances 0.000 claims description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000000654 additive Substances 0.000 claims description 3
- 239000006004 Quartz sand Substances 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000000440 bentonite Substances 0.000 claims description 2
- 229910000278 bentonite Inorganic materials 0.000 claims description 2
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 2
- 239000002270 dispersing agent Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 238000002604 ultrasonography Methods 0.000 claims description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 3
- 239000011707 mineral Substances 0.000 abstract description 3
- 239000002689 soil Substances 0.000 abstract description 2
- 239000004927 clay Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000005995 Aluminium silicate Substances 0.000 description 14
- 235000012211 aluminium silicate Nutrition 0.000 description 14
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 14
- 239000013049 sediment Substances 0.000 description 11
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 238000000605 extraction Methods 0.000 description 5
- 238000005188 flotation Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 239000000470 constituent Substances 0.000 description 3
- 239000010433 feldspar Substances 0.000 description 3
- 239000008396 flotation agent Substances 0.000 description 3
- 239000010453 quartz Substances 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000010438 granite Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/29—Obtaining a slurry of minerals, e.g. by using nozzles
Definitions
- the invention relates to a process for obtaining clay mineral-containing Raw materials according to the preamble of claim 1.
- US 5,129,167 describes a suction device for suction of sediment at the bottom of a body of water, z. B. on the seabed.
- the extracted sediment is provided in a ship in there Separated sedimentation tanks.
- US 3,498,674 discloses a selective flotation process Extraction of ore from a deposit. This will be a with a flotation added rinse in a in the Deposit injected wellbore pumped. The ore will selectively dissolved by the flotation agent and forms with the Rinse a suspension. The suspension is by means of a Suction pump pumped out. The use of flotation agent is costly and environmentally harmful.
- DE 30 35 904 A1 relates to a method for the production of Ores and mineral resources from sediments of the seabed.
- the raw materials from the sediments become smaller enriched the flotation principle below the sea surface and then pumped to the water surface.
- the residues arising during the flotation become immediate Folded over the seabed.
- the known method is suitable exclusively for the extraction of ores and minerals Raw materials from seabed sediments.
- the object of the invention is to be as simple and inexpensive feasible method for obtaining clay mineral-containing Indicate raw materials from a deposit, with the disadvantages of the prior art are avoided can.
- the Generation of the liquid jet serving pressure continues to so is adjusted, that the first grain fraction selectively In between intervals of the Maugesteins is washed out and that Secondary rock as a coarser particles containing second Grain fraction in situ in the form of a deposit supporting the deposit Scaffold structure remains.
- the proposed method is simple and inexpensive feasible. It allows the selective extraction of clay mineral Raw materials, in particular from primary deposits. there is selectively the first by means of the liquid jet Grain fraction suspended while the second grain fraction in situ remains. For example, from clay mineral-containing Sand or granite rock selectively kaolin be dissolved out. A skeleton supporting the deposit remains behind Particles of the second particle size fraction. A filling a remaining cavity after exploitation of the deposit not necessary. The deposit is going through in situ Remaining rock or sediment of the second grain fraction supported. For the extraction of clay minerals No environmentally harmful flotation agent is necessary.
- the method can advantageously be carried out in one stage, i.e. it eliminates the classification method after conveying the suspension to the earth's surface.
- the proposed Procedure is universal. It can be used both for terrestrial exploitation as well as submarine deposits.
- the term "earth surface” is a land surface or to understand the surface of a body of water.
- the separation of the predetermined first takes place Grain fraction according to the principle of "upstream classification" already in the borehole.
- the suspension is not to the earth's surface sucked by suction devices. It is rather pressed by the pressure of the water jet to the earth's surface.
- the pressure generating the water jet becomes accurate adjusted so that only the predetermined first Grain fraction at the earth's surface in the suspension is present.
- a coarser particles containing second grain fraction remains in the deposit and serves to support the same.
- the Drilled hole produced by the liquid jet is omitted the need for a special drill. The procedure can thus be carried out quickly and inexpensively.
- the bore and the Pipe tour down to the foot of the deposit makes it possible in an advantageous manner, the deposit from the lying to the hanging, preferably by synchronous Pulling the tube tour and a device for generating the Liquid jet, break down.
- the tube tour only in one of the earth's surface section-wise drilled into the bore section becomes.
- the jet of fluid can travel radially underground around the hole be led circumferentially.
- the liquid jet, z. B. simultaneously, substantially vertically through the deposit will be conducted. This allows a fast and effective exploitation of the deposit by one of the recumbent the hanging walls spiraling movement of the Liquid steel.
- liquid jet with under a pressure of 200 to 900 bar, preferably 400 to 700 bar, stagnant water is generated. This allows effective extraction of clay minerals, z. As kaolin, from sediment or rock.
- the choice of flow rate with which the suspension is transported to the earth's surface u.a. of the specific Weight of the clay mineral raw materials and of specific weight of the suspension.
- the flow velocity should be set to the desired first Grain fraction at the earth's surface contained in the suspension is.
- the pressure is suitably adjusted so that the suspension at a flow rate of 0.05 transported up to 3.0 m / min to the earth's surface.
- the tube tour is formed from double-walled tubes and the suspension is conveyed through an annular gap formed between the tubes.
- a flow cross-section of the pipe run or the annular gap can be between 0.2 and 12.6 m 2 .
- at least one wellbore is made and the suspension is extracted through the wellbore.
- the suspension the clay mineral-containing raw materials are separated and remaining Residual fluid is used to generate the water jet in Guided cycle.
- the suspension over a Wet sieve or a hydrocyclone be performed. This allows a simple and fast separation.
- the maximum grain size the first grain fraction is suitably 400 microns.
- one or more of the following additives may be added: dispersing agent, Bentonite, quartz sand.
- dispersing agent Bentonite
- quartz sand The proposed additives cause a faster and more effective separation of the clay mineral raw materials from the surrounding rock or sediment. Suspending the clay mineral raw materials can be further supported by the action of ultrasound.
- Fig. 1 shows grain size distributions of the essential components a kaolin deposit.
- the deposit exists here from kaolin in a particle size fraction of 0.1 to 50 ⁇ m, also from feldspar in a particle size fraction of about 7 up to 2000 ⁇ m as well as quartz in a particle size fraction of more than 10 ⁇ m. Because of the different grain size fractions For example, by separating a first grain fraction from 0.1 to 25 microns essentially the component Kaolin be recovered. A second grain fraction of larger 10 ⁇ m remains. It forms about 80 wt.% Of in the form of a formed as a primary deposit reservoir and exists from the other components feldspar and quartz.
- Fig. 2 shows a schematic cross-sectional view of the Recovery of kaolin suitable device.
- One in the deposit reaching hole B is in one of the earth's surface EO extending upper section with a piping 1 provided.
- a supply line 2 out In the piping 1 and in the uncased following section of the bore B is a supply line 2 out, attached to one end of an injection nozzle 3 is.
- a high pressure pump At the other end of the supply line 2 is a (not here shown) high pressure pump connected.
- W is one from the Injection nozzle 3 exiting water jet W called.
- a in particular the suspension containing the raw material to be recovered 4 is characterized by a between the casing 1 and the Wall of the bore B and the supply line 2 formed annular gap. 5 brought to light.
- the piping 1 is advantageously only in stable mountains in one of the earth's surface EO in the bore B reaching introduced upper section.
- the bore B can, for example only half provided with the piping 1 become.
- the casing 1 may also be a double-walled tubing 1 act.
- the conveying speed is adjusted that with the suspension 4 only a certain predetermined Grain fraction of z. B. smaller 25 microns to the earth's surface EO is promoted.
- the raw material to be extracted namely kaolin K.
- the deposit remains the coarser-grained components of greater than 20 ⁇ m. This is the unwanted by-product N, which consists essentially of feldspar and quartz.
- the host rock N accounts for about 80% by weight of the deposit out. It remains in the deposit and supports the deposit from. In practice, it has been shown that by the Effect of the water jet W kaolin K mostly from the Zwikkel cogn of the host rock N is rinsed out. It remains a skeleton structure formed by the host rock N, which the deposit is supported. The deposit must be after the inventive method subsequently not separately backfilled or supported.
- the rinsing of kaolin K begins expediently during Lying of the deposit. If the piping 1 to the Deposit can be achieved by synchronously pulling the casing 1 and the supply line 2, the deposit from the lying to Hanging walls are dismantled.
- the solid constituents From the conveyed to the earth's surface EO suspension 4 are the solid constituents for example by means of a Separated wet sieve or a hydrocyclone. The remaining one Residual fluid can recirculate through the supply line 2 are led to further reduction of the deposit.
- the separated solid constituents consist essentially of Kaolin K. They can be further processed by conventional methods, be cleaned in particular.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
Description
- Fig. 1
- Korngrößenverteilungen wesentlicher Bestandteile einer Kaolinlagerstätte und
- Fig. 2
- einen Querschnitt durch eine Vorrichtung zur Gewinnung tonmineralhaltiger Rohstoffe.
- 1
- Verrohrung
- 2
- Zuleitung
- 3
- Injektionsdüse
- 4
- Suspension
- 5
- Ringspalt
- B
- Bohrung
- EO
- Erdoberfläche
- K
- Kaolin
- N
- Nebengestein
- W
- Wasserstrahl
Claims (15)
- Verfahren zur Gewinnung tonmineralhaltiger Rohstoffe mit folgenden Schritten:Herstellen einer von der Erdoberfläche (EO) in eine die tonmineralhaltigen Rohstoffe enthaltende Lagerstätte reichenden Bohrung (B),Einbringen einer zumindest abschnittsweise in die Bohrung (B) reichenden Rohrtour (1),Herstellen einer die tonmineralhaltigen Rohstoffe (K) enthaltenden Suspension (4) mit einem Flüssigkeitsstrahl (W) unter Tage, undFördern der Suspension (4) durch die Rohrtour (1) an die Erdoberfläche (EO) mittels des vom Flüssigkeitsstrahl (W) erzeugten Drucks,Einstellen des zur Erzeugung des Flüssigkeitsstrahls (W) dienenden Drucks derart, dass die an die Erdoberfläche (EO) geförderte Suspension (4) eine die tonmineralische Rohstoffe (K) enthaltende vorgegebene erste Kornfraktion enthält,
dadurch gekennzeichnet, dassder zur Erzeugung des Flüssigkeitsstrahls (W) dienende Druck weiterhin so eingestellt wird, dass die erste Kornfraktion selektiv aus Zwickelräumen des Nebengesteins (N) herausgewaschen wird und das Nebengestein (N) als eine gröbere Partikel enthaltende zweite Kornfraktion in situ in Form einer die Lagerstätte abstützenden Gerüststruktur zurückbleibt. - Verfahren nach Anspruch 1, wobei die Bohrung (B) mittels des Flüssigkeitsstrahls (W) hergestellt wird.
- Verfahren nach einem der vorhergehenden Ansprüche, wobei die Rohrtour (1) in einen von der Erdoberfläche (EO) abschnittsweise in die Bohrung (B) reichenden Abschnitt niedergebracht wird.
- Verfahren nach einem der vorhergehenden Ansprüche, wobei die Lagerstätte vom Liegenden zum Hangenden, vorzugsweise durch synchrones Ziehen der Rohrtour (1) und einer Einrichtung zur Erzeugung des Flüssigkeitsstrahls (2, 3) abgebaut wird.
- Verfahren nach einem der vorhergehenden Ansprüche, wobei zur Herstellung der Suspension (4) der Flüssigkeitsstrahl (W) unter Tage radial um die Bohrung (B) umlaufend geführt wird.
- Verfahren nach einem der vorhergehenden Ansprüche, wobei der Flüssigkeitsstahl (W) im Wesentlichen vertikal durch die Lagerstätte geführt wird.
- Verfahren nach einem der vorhergehenden Ansprüche, wobei der Flüssigkeitsstrahl (W) mit unter einem Druck von 200 bis 900 bar, vorzugsweise 400 bis 700 bar, stehendem Wasser erzeugt wird.
- Verfahren nach einem der vorhergehenden Ansprüche, wobei der Druck so eingestellt wird, dass die Suspension (4) mit einer Strömungsgeschwindigkeit von 0,05 bis 3,0 m/min an die Erdoberfläche (EO) transportiert wird.
- Verfahren nach einem der vorhergehenden Ansprüche, wobei die Rohrtour (1) aus doppelwandigen Rohren (1) gebildet ist und die Suspension (4) durch einen zwischen den Rohren gebildeten Ringspalt (5) gefördert wird.
- Verfahren nach einem der vorhergehenden Ansprüche, wobei eine in der Rohrtour (1) oder im Ringspalt (5) gebildete Querschnittsfläche zum Durchfluss der Suspension (4) 0,2 bis 12,6 m2 beträgt.
- Verfahren nach einem der vorhergehenden Ansprüche, wobei aus der Suspension (4) die tonmineralhaltigen Rohrstoffe (K) abgetrennt werden und verbleibende Restflüssigkeit zur Erzeugung des Wasserstrahls (W) im Kreislauf geführt wird.
- Verfahren nach einem der vorhergehenden Ansprüche, wobei die Suspension (4) zur Abtrennung des tonmineralhaltigen Rohstoffs (K) über ein Nasssieb oder einen Hydrozyklon geführt wird.
- Verfahren nach einem der vorhergehenden Ansprüche, wobei eine maximale Korngröße der ersten Kornfraktion höchstens 400 µm beträgt.
- Verfahren nach einem der vorhergehenden Ansprüche, wobei der zur Erzeugung als Flüssigkeitsstrahls (W) verwendeten Flüssigkeit eines oder mehrere der folgenden Zusätze zugesetzt sind: Dispersionsmittel, Bentonit, Quarzsand.
- Verfahren nach einem der vorhergehenden Ansprüche, wobei das Suspendieren der tonmineralhaltigen Rohstoffe durch die Einwirkung von Ultraschall unterstützt wird.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10331448A DE10331448A1 (de) | 2003-07-10 | 2003-07-10 | Verfahren zur Gewinnung tonmineralhaltiger Rohstoffe |
DE10331448 | 2003-07-10 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1496195A1 true EP1496195A1 (de) | 2005-01-12 |
EP1496195B1 EP1496195B1 (de) | 2007-09-12 |
Family
ID=33441729
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04015973A Expired - Lifetime EP1496195B1 (de) | 2003-07-10 | 2004-07-07 | Verfahren zur Gewinnung tonmineralhaltiger Rohstoffe |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1496195B1 (de) |
AT (1) | ATE373162T1 (de) |
DE (2) | DE10331448A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107315084A (zh) * | 2017-08-01 | 2017-11-03 | 河海大学常州校区 | 一种疏浚粘土切削临界射流压力的测量方法 |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10564C (de) * | E. H. HOFFMANN, Königl. Kreisbaumeister a. D. in Berlin NW., Moabit 129 | Hydraulische Gewinnung und Sonderung unter Wasser befindlicher Erdarten | ||
US823749A (en) * | 1905-03-28 | 1906-06-19 | Thomas Skelton Harrison | Method of simultaneously mining and washing clay, kaolin, &c. |
GB631094A (en) | 1944-06-26 | 1949-10-27 | Cecil Percy Tooth Aston | Improvements in or relating to mining and excavating |
US3498674A (en) | 1967-08-04 | 1970-03-03 | Dale M Matthews | Mining method and apparatus |
DE3035904A1 (de) | 1980-09-24 | 1982-04-08 | Battelle-Institut E.V., 6000 Frankfurt | Verfahren zur gewinnung von erzen und mineralischen rohstoffen aus sedimenten des meeresbodens |
US4497519A (en) * | 1982-11-22 | 1985-02-05 | Grable Donovan B | Metal particle recovery at sub-surface locations |
US4826087A (en) | 1985-02-12 | 1989-05-02 | David Chinery | Manipulative device |
US5129167A (en) | 1989-08-29 | 1992-07-14 | Ikikaihatu Yugen Kaisya | Method of and apparatus for preventing diffusion of muddy water in sand gathering equipment |
US5181578A (en) | 1991-11-08 | 1993-01-26 | Lawler O Wayne | Wellbore mineral jetting tool |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2176224A (en) * | 1985-06-04 | 1986-12-17 | British Petroleum Co Plc | Borehole extraction of minerals |
US6460936B1 (en) * | 1999-06-19 | 2002-10-08 | Grigori Y. Abramov | Borehole mining tool |
-
2003
- 2003-07-10 DE DE10331448A patent/DE10331448A1/de not_active Ceased
-
2004
- 2004-07-07 EP EP04015973A patent/EP1496195B1/de not_active Expired - Lifetime
- 2004-07-07 DE DE502004004923T patent/DE502004004923D1/de not_active Expired - Lifetime
- 2004-07-07 AT AT04015973T patent/ATE373162T1/de not_active IP Right Cessation
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10564C (de) * | E. H. HOFFMANN, Königl. Kreisbaumeister a. D. in Berlin NW., Moabit 129 | Hydraulische Gewinnung und Sonderung unter Wasser befindlicher Erdarten | ||
US823749A (en) * | 1905-03-28 | 1906-06-19 | Thomas Skelton Harrison | Method of simultaneously mining and washing clay, kaolin, &c. |
GB631094A (en) | 1944-06-26 | 1949-10-27 | Cecil Percy Tooth Aston | Improvements in or relating to mining and excavating |
US3498674A (en) | 1967-08-04 | 1970-03-03 | Dale M Matthews | Mining method and apparatus |
DE3035904A1 (de) | 1980-09-24 | 1982-04-08 | Battelle-Institut E.V., 6000 Frankfurt | Verfahren zur gewinnung von erzen und mineralischen rohstoffen aus sedimenten des meeresbodens |
US4497519A (en) * | 1982-11-22 | 1985-02-05 | Grable Donovan B | Metal particle recovery at sub-surface locations |
US4826087A (en) | 1985-02-12 | 1989-05-02 | David Chinery | Manipulative device |
US5129167A (en) | 1989-08-29 | 1992-07-14 | Ikikaihatu Yugen Kaisya | Method of and apparatus for preventing diffusion of muddy water in sand gathering equipment |
US5181578A (en) | 1991-11-08 | 1993-01-26 | Lawler O Wayne | Wellbore mineral jetting tool |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107315084A (zh) * | 2017-08-01 | 2017-11-03 | 河海大学常州校区 | 一种疏浚粘土切削临界射流压力的测量方法 |
CN107315084B (zh) * | 2017-08-01 | 2019-07-26 | 河海大学常州校区 | 一种疏浚粘土切削临界射流压力的测量方法 |
Also Published As
Publication number | Publication date |
---|---|
DE10331448A1 (de) | 2005-02-17 |
ATE373162T1 (de) | 2007-09-15 |
DE502004004923D1 (de) | 2007-10-25 |
EP1496195B1 (de) | 2007-09-12 |
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