CN104098313B - Without bleeding, the preparation of fast solidifying, hard soon underground carnallite backfill slip and earth-filling method - Google Patents
Without bleeding, the preparation of fast solidifying, hard soon underground carnallite backfill slip and earth-filling method Download PDFInfo
- Publication number
- CN104098313B CN104098313B CN201410332911.4A CN201410332911A CN104098313B CN 104098313 B CN104098313 B CN 104098313B CN 201410332911 A CN201410332911 A CN 201410332911A CN 104098313 B CN104098313 B CN 104098313B
- Authority
- CN
- China
- Prior art keywords
- slip
- backfill
- bleeding
- preparation
- carnallite
- 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.)
- Active
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
The invention discloses a kind of without bleeding, the preparation method of fast solidifying, hard soon underground carnallite backfill slip, its step is as follows: underground carnallite produces the mother solution forced evaporation after KCl, recovery section carnallite, after mother solution forced evaporation, under room temperature, proportion is not less than 1.350；In the mother solution after recovery carnallite, add modifying agent and gellant obtains slip；Sylvite ore producing the mine tailing centrifuge dehydration after KCl, joins in slip, being sufficiently stirred for preparation becomes the paste body shape backfill slip that mass concentration is 70～85%。The invention also discloses the earth-filling method of aforementioned backfill slip。The preparation method that the present invention backfills slurry is reasonable in design, takes full advantage of milltailings and mother solution, it may be achieved without bleeding, fast solidifying, hard soon underground carnallite backfill。Efficiently solve and prior art backfill slip bleeding rate is big, solidify after water-resistance is poor, the technical problem of setting time length。
Description
Technical field
The present invention relates to the preparation of a kind of backfill slip of digging up mine and earth-filling method, particularly a kind of the material and the method that use high concentration, water resistant, fast solidifying and fast hard backfill material to carry out underground carnallite backfill。
Background technology
Inland is buried type carnallite type sylvite ore, and traditional recovery method has two kinds: dry mining and water law exploitation。No matter adopt which kind of recovery method, all can the substantial amounts of tail salt of by-product and mother solution while processing obtains KCl。It addition, for dry mining, the problem that there is also large area goaf, underground except the disposal of tail salt and mother solution。
In mines such as such as coloured, collieries, it is common to use portland cement, as Binder Materials, prepares into backfill slurry pipeline transport to underground goaf with tailings or spoil for aggregate。Solve the handling problems of mine tailing on the one hand, controllably press on the other hand, improve resource recovery rate。
For underground sylvite ore, existing multinomial patent documentation discloses preparation and the earth-filling method of backfill slip。Such as the Chinese patent literature that the patent No. is 201010164701.0,201010164704.4,201110034099.3,201310422599.3,201110458026.7 etc.。Patent documents above all adopts the form preparation backfill material of " mine tailing+mother solution+magnesium oxide "。Magnesium oxide can generate the magnesia oxychloride cement of air-setting with the magnesium chloride in flotation mother solution, mix after the backfill slip prepared solidifies pressure-proof and snap-resistent better performances in dry conditions with flotation salt by magnesia oxychloride cement, but temperature 30 DEG C, under the environment of relative humidity more than 90% very easily the moisture absorption, drip, and solidify after pressure-proof and snap-resistent intensity loss of growth in time comparatively serious；On the other hand, existence due to a small amount of floating agent so that magnesium oxide can form a large amount of micro-bubble with tail washings and tail salt when being stirred together for, and greatly adds the quantity of capillary channel in slip, ultimately result in slip bleeding rate in the curing process to increase, it is easy to dehydration in stope phenomenon occurs；Finally, in slip, NaCl content is about 70%, causes that slip coagulation reaction time is longer, needs to can be only achieved desirable strength in about 7 days so that brill digs, air blast, mineral conveying and the lengthening of backfill cycle。
Summary of the invention
The technical problem to be solved is defect poor for water-resistance after backfilling in prior art that slip bleeding rate is big, solidifying, setting time length, it is provided that a kind of without bleeding, coagulate soon, preparation method that underground carnallite hard soon backfills slip。
Another technical problem to be solved by this invention be to provide a kind of without bleeding, the earth-filling method of fast solidifying, hard soon underground carnallite backfill slip。
The technical problem to be solved is to be realized by following technical scheme。The present invention be a kind of without bleeding, the preparation method of fast solidifying, hard soon underground carnallite backfill slip, be characterized in, its step is as follows:
(1) underground carnallite produces the mother solution forced evaporation after KCl, and recovery section carnallite, after mother solution forced evaporation, under room temperature, proportion is not less than 1.350；
(2) in the mother solution after recovery carnallite, add modifying agent and gellant obtains slip；
Described modifying agent is accelerator and water repellent agent；
Described accelerator one or more mixture mixed with arbitrary proportion in lithium salts, all alkali, triethanolamine, triisopropanolamine and urea；Accelerator mass percent in backfill slip is not higher than 7%；
A kind of in phosphoric acid, orthophosphate, sulfate, silicon ash or water-soluble organic resin of described water repellent agent or their mixture that mixes with arbitrary proportion；Water repellent agent mass percent in backfill slip is not higher than 8%；
Described gellant is the activated magnesia that MgO activity value is not less than 50%；Activated magnesia and MgCl in mother solution2Mol ratio is 0.5:1～15:1；
(3) sylvite ore producing the mine tailing centrifuge dehydration after KCl, joins in the slip that step (2) prepares, being sufficiently stirred for preparation becomes the paste body shape backfill slip that mass concentration is 70～85%。
The technical problem to be solved can also be realized further by following technical scheme。Above-described without bleeding, the preparation method of fast solidifying, hard soon underground carnallite backfill slip, be characterized in, in step (2): described orthophosphate is selected from iron phosphate or aluminum phosphate；Described sulfate is selected from Gypsum Fibrosum, siderotil, Alumen or aluminum sulfate；Described water-soluble organic resin is selected from melamine resin or urea element formaldehyde resin。
The technical problem to be solved can also be realized further by following technical scheme。Above-described without bleeding, the preparation method of fast solidifying, hard soon underground carnallite backfill slip, be characterized in, in step (2): accelerator mass percent in backfill slip is 0.05～6%；Water repellent agent mass percent in backfill slip is 0.05～6%。
The technical problem to be solved can also be realized further by following technical scheme。Above-described without bleeding, the preparation method of fast solidifying, hard soon underground carnallite backfill slip, be characterized in, in step (2): accelerator mass percent in backfill slip is 0.2～3%；Water repellent agent mass percent in backfill slip is 1～4%。
The technical problem to be solved can also be realized further by following technical scheme。Above-described without bleeding, the preparation method of fast solidifying, hard soon underground carnallite backfill slip, be characterized in, in step (3): the mass ratio of described mine tailing and mother solution is 1:1～10:1。
The technical problem to be solved can also be realized further by following technical scheme。Above-described without bleeding, the preparation method of fast solidifying, hard soon underground carnallite backfill slip, be characterized in, in step (3): the mass ratio of described mine tailing and mother solution is 2:1～8:1。
The technical problem to be solved can also be realized further by following technical scheme。Above-described without bleeding, the preparation method of fast solidifying, hard soon underground carnallite backfill slip, be characterized in, in step (3): the mass ratio of described mine tailing and mother solution is 4:1～6:1；The actual measurement slump of backfill slip is not less than 20cm。
The technical problem to be solved can also be realized further by following technical scheme。Above-described without bleeding, the preparation method of fast solidifying, hard soon underground carnallite backfill slip, be characterized in, in step (3): described activated magnesia is magnesia or the activated magnesia of dolomite calcination gained, activated magnesia and MgCl in mother solution2Mol ratio is 1:1～11:1。
The technical problem to be solved can also be realized further by following technical scheme。Above-described without bleeding, the preparation method of fast solidifying, hard soon underground carnallite backfill slip, be characterized in, in step (3): activated magnesia and MgCl in mother solution2Mol ratio is 1:1～5:1。
The technical problem to be solved can also be realized further by following technical scheme。The invention also discloses a kind of without bleeding, the earth-filling method of fast solidifying, hard soon underground carnallite backfill slip, being characterized in, its step is as follows: backfill slip any one in above technical scheme prepared takes the mode of gravity flow or pumping to be delivered to goaf by a pipeline；The time that backfill material solidifies after being delivered to goaf is 4h～72h, and the comprcssive strength of the backfill thing formed after solidification is 0.6～5Mpa。In earth-filling method of the present invention, condensing molding time and can pass through to change the addition adjustment of modifying agent at 4h～72h, comprcssive strength can be passed through to change the addition of Binder Materials and regulate at 0.6～5Mpa。
Compared with prior art, the preparation method that the present invention backfills slurry is reasonable in design, takes full advantage of milltailings and mother solution, it may be achieved without bleeding, fast solidifying, hard soon underground carnallite backfill。Efficiently solve and prior art backfill slip bleeding rate is big, solidify after water-resistance is poor, the technical problem of setting time length。
Accompanying drawing explanation
Fig. 1 is a kind of preparation method process chart that the present invention backfills slip。
Detailed description of the invention
Below in conjunction with accompanying drawing the present invention is described further describe。Embodiment is illustrative of, and is only used for explaining the present invention, and is not considered as limiting the invention。
Embodiment 1, a kind of without bleeding, the preparation method of fast solidifying, hard soon underground carnallite backfill slip, its step is as follows:
(1) underground carnallite produces the mother solution forced evaporation after KCl, and recovery section carnallite, after mother solution forced evaporation, under room temperature, proportion is not less than 1.350；
(2) in the mother solution after recovery carnallite, add modifying agent and gellant obtains slip；
Described modifying agent is accelerator and water repellent agent；
Described accelerator one or more mixture mixed with arbitrary proportion in lithium salts, all alkali, triethanolamine, triisopropanolamine and urea；Accelerator mass percent in backfill slip is 7%；
A kind of in phosphoric acid, orthophosphate, sulfate, silicon ash or water-soluble organic resin of described water repellent agent or their mixture that mixes with arbitrary proportion；Water repellent agent mass percent in backfill slip is 8%；
Described gellant is the activated magnesia that MgO activity value is not less than 50%；Activated magnesia and MgCl in mother solution2Mol ratio is 0.5:1；
(3) sylvite ore producing the mine tailing centrifuge dehydration after KCl, joins in the slip that step (2) prepares, being sufficiently stirred for preparation becomes the paste body shape backfill slip that mass concentration is 70%。
Embodiment 2, a kind of without bleeding, the preparation method of fast solidifying, hard soon underground carnallite backfill slip, its step is as follows:
(1) underground carnallite produces the mother solution forced evaporation after KCl, and recovery section carnallite, after mother solution forced evaporation, under room temperature, proportion is not less than 1.350；
(2) in the mother solution after recovery carnallite, add modifying agent and gellant obtains slip；
Described modifying agent is accelerator and water repellent agent；
Described accelerator one or more mixture mixed with arbitrary proportion in lithium salts, all alkali, triethanolamine, triisopropanolamine and urea；Accelerator mass percent in backfill slip is 6%；
A kind of in phosphoric acid, orthophosphate, sulfate, silicon ash or water-soluble organic resin of described water repellent agent or their mixture that mixes with arbitrary proportion；Water repellent agent mass percent in backfill slip is 7%；
Described gellant is the activated magnesia that MgO activity value is not less than 50%；Activated magnesia and MgCl in mother solution2Mol ratio is 15:1；
(3) sylvite ore producing the mine tailing centrifuge dehydration after KCl, joins in the slip that step (2) prepares, being sufficiently stirred for preparation becomes the paste body shape backfill slip that mass concentration is 85%。
Embodiment 3, embodiment 1 or 2 require described without bleeding, the preparation method of fast solidifying, hard soon underground carnallite backfill slip step (2) in: described orthophosphate is selected from iron phosphate or aluminum phosphate；Described sulfate is selected from Gypsum Fibrosum, siderotil, Alumen or aluminum sulfate；Described water-soluble organic resin is selected from melamine resin or urea element formaldehyde resin。
Embodiment 4, embodiment 1 or 2 or 3 requires the described preparation method without bleeding, fast solidifying, hard soon underground carnallite backfill slip: accelerator mass percent in backfill slip is 0.05%；Water repellent agent mass percent in backfill slip is 0.05%；All the other are all identical with embodiment 1 or 2 or 3。
Embodiment 5, embodiment 1 or 2 or 3 requires the described preparation method without bleeding, fast solidifying, hard soon underground carnallite backfill slip: accelerator mass percent in backfill slip is 0.2%；Water repellent agent mass percent in backfill slip is 1%；All the other are all identical with embodiment 1 or 2 or 3。
Embodiment 6, embodiment 1 or 2 or 3 requires the described preparation method without bleeding, fast solidifying, hard soon underground carnallite backfill slip: accelerator mass percent in backfill slip is 3%；Water repellent agent mass percent in backfill slip is 4%；The actual measurement slump of backfill slip is not less than 20cm。All the other are all identical with embodiment 1 or 2 or 3。
Embodiment 7, embodiment 1-6 any one require described without bleeding, the preparation method of fast solidifying, hard soon underground carnallite backfill slip step (3) in: the mass ratio of described mine tailing and mother solution is 1:1。
Embodiment 8, embodiment 1-6 any one require described without bleeding, the preparation method of fast solidifying, hard soon underground carnallite backfill slip step (3) in: the mass ratio of described mine tailing and mother solution is 10:1。
Embodiment 9, embodiment 1-6 any one require described without bleeding, the preparation method of fast solidifying, hard soon underground carnallite backfill slip step (3) in: the mass ratio of described mine tailing and mother solution is 5:1。
Embodiment 10, embodiment 1-9 any one require described without bleeding, the preparation method of fast solidifying, hard soon underground carnallite backfill slip step (3) in: described activated magnesia is magnesia or the activated magnesia of dolomite calcination gained, MgCl in activated magnesia and mother solution2Mol ratio is 1:1。
Embodiment 11, embodiment 1-9 any one require described without bleeding, the preparation method of fast solidifying, hard soon underground carnallite backfill slip step (3) in: described activated magnesia is magnesia or the activated magnesia of dolomite calcination gained, MgCl in activated magnesia and mother solution2Mol ratio is 11:1。
Embodiment 12, embodiment 1-9 any one require described without bleeding, the preparation method of fast solidifying, hard soon underground carnallite backfill slip step (3) in: described activated magnesia is magnesia or the activated magnesia of dolomite calcination gained, MgCl in activated magnesia and mother solution2Mol ratio is 5:1。
Embodiment 13, a kind of without bleeding, the earth-filling method of fast solidifying, hard soon underground carnallite backfill slip, its step is as follows: backfill slip embodiment 1-12 any one prepared takes gravity flow or the mode that pumps to be delivered to goaf by a pipeline；The time that backfill material solidifies after being delivered to goaf is 4h～72h, and the comprcssive strength of the backfill thing formed after solidification is 0.6～5Mpa。
In following experiment, certain KCl manufacturing enterprise, after choosing, after liquid, choosing, after liquid forced evaporation recovery carnallite, mother solution composition and mine tailing form in Table 1:
Table 1
Embodiment 14, a kind of without bleeding, the preparation method experiment one of fast solidifying, hard soon underground carnallite backfill slip:
By activated magnesia and MgCl in mother solution2Mol ratio 1:1, tail salt and mother solution mass ratio 4:1, take table 1 mother solution 590Kg, adds triethanolamine 20Kg, phosphoric acid 50Kg, Gypsum Fibrosum 50Kg, be stirring evenly and then adding into light calcined magnesia (activity value 53%) 180Kg, stir 5 minutes, add tail salt 2360Kg, stir 20 minutes。Measure its slump angle value and bleeding rate, slip is made 707 standard die trials, at 30 DEG C, maintenance under relative humidity 90% condition, measure different larval instar compression strength value, in Table 2。
Table 2
Embodiment 15, a kind of without bleeding, the preparation method experiment two of fast solidifying, hard soon underground carnallite backfill slip:
By activated magnesia and MgCl in mother solution2Mol ratio 3:1, tail salt and mother solution mass ratio 4:1, take table 1 mother solution 590Kg, adds lithium chloride 20Kg, phosphoric acid 50Kg, Gypsum Fibrosum 50Kg, is stirring evenly and then adding into light calcined magnesia (activity value 53%) 540Kg, stirs 5 minutes, add tail salt 2360Kg, stir 20 minutes。Measure its slump angle value and bleeding rate, slip is made 707 standard die trials, at 30 DEG C, maintenance under relative humidity 90% condition, measure different larval instar compression strength value, in Table 3。
Table 3
Embodiment 16, a kind of without bleeding, the preparation method experiment three of fast solidifying, hard soon underground carnallite backfill slip:
By activated magnesia and MgCl in mother solution2Mol ratio 2:1, tail salt and mother solution mass ratio 4:1, take table 1 mother solution 590Kg, phosphoric acid 50Kg, Gypsum Fibrosum 50Kg, be stirring evenly and then adding into light calcined magnesia (activity value 53%) 540Kg, stir 5 minutes, add tail salt 2360Kg, stir 20 minutes。Measure its slump angle value and bleeding rate, slip is made 707 standard die trials, at 30 DEG C, maintenance under relative humidity 90% condition, measure different larval instar compression strength value, in Table 4。
Table 4
Although above the present invention is described in detail with a general description of the specific embodiments, but can being modified and improve on basis of the present invention, this will be apparent to those skilled in the art。Therefore, these amendments and the improvement made without departing from theon the basis of the spirit of the present invention, all belong to the scope of protection of present invention。
Claims (10)
1. the preparation method without bleeding, fast solidifying, hard soon underground carnallite backfill slip, it is characterised in that its step is as follows:
(1) underground carnallite produces the mother solution forced evaporation after KCl, and recovery section carnallite, after mother solution forced evaporation, under room temperature, proportion is not less than 1.350；
(2) in the mother solution after recovery carnallite, add modifying agent and gellant obtains slip；
Described modifying agent is accelerator and water repellent agent；
Described accelerator one or more mixture mixed with arbitrary proportion in lithium salts, all alkali, triethanolamine, triisopropanolamine and urea；Accelerator mass percent in backfill slip is not higher than 7%；
A kind of in phosphoric acid, orthophosphate, sulfate, silicon ash or water-soluble organic resin of described water repellent agent or their mixture that mixes with arbitrary proportion；Water repellent agent mass percent in backfill slip is not higher than 8%；
Described gellant is the activated magnesia that MgO activity value is not less than 50%；Activated magnesia and MgCl in mother solution2Mol ratio is 0.5:1～15:1；
(3) sylvite ore producing the mine tailing centrifuge dehydration after KCl, joins in the slip that step (2) prepares, being sufficiently stirred for preparation becomes the paste body shape backfill slip that mass concentration is 70～85%。
2. according to claim 1 without bleeding, the preparation method of fast solidifying, hard soon underground carnallite backfill slip, it is characterised in that in step (2): described orthophosphate is selected from iron phosphate or aluminum phosphate；Described sulfate is selected from Gypsum Fibrosum, siderotil, Alumen or aluminum sulfate；Described water-soluble organic resin is selected from melamine resin or urea-formaldehyde resin。
3. according to claim 1 without bleeding, the preparation method of fast solidifying, hard soon underground carnallite backfill slip, it is characterised in that in step (2): accelerator mass percent in backfill slip is 0.05～6%；Water repellent agent mass percent in backfill slip is 0.05～6%。
4. according to claim 1 without bleeding, the preparation method of fast solidifying, hard soon underground carnallite backfill slip, it is characterised in that in step (2): accelerator mass percent in backfill slip is 0.2～3%；Water repellent agent mass percent in backfill slip is 1～4%。
5. according to claim 1 without bleeding, the preparation method of fast solidifying, hard soon underground carnallite backfill slip, it is characterised in that in step (3): the mass ratio of described mine tailing and mother solution is 1:1～10:1。
6. according to claim 5 without bleeding, the preparation method of fast solidifying, hard soon underground carnallite backfill slip, it is characterised in that in step (3): the mass ratio of described mine tailing and mother solution is 2:1～8:1。
7. according to claim 6 without bleeding, the preparation method of fast solidifying, hard soon underground carnallite backfill slip, it is characterised in that in step (3): the mass ratio of described mine tailing and mother solution is 4:1～6:1；The actual measurement slump of backfill slip is not less than 20cm。
8. according to claim 1 without bleeding, the preparation method of fast solidifying, hard soon underground carnallite backfill slip, it is characterized in that, in step (2): described activated magnesia is magnesia or the activated magnesia of dolomite calcination gained, MgCl in activated magnesia and mother solution2Mol ratio is 1:1～11:1。
9. the preparation method without bleeding, fast solidifying, hard soon underground carnallite backfill slip according to claim 1 or 8, it is characterised in that in step (2): activated magnesia and MgCl in mother solution2Mol ratio is 1:1～5:1。
10. the earth-filling method without bleeding, fast solidifying, hard soon underground carnallite backfill slip, it is characterized in that, its step is as follows: backfill slip claim 1-9 any one prepared takes the mode of gravity flow or pumping to be delivered to goaf by a pipeline；The time that backfill material solidifies after being delivered to goaf is 4h～72h, and the comprcssive strength of the backfill thing formed after solidification is 0.6～5MPa。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410332911.4A CN104098313B (en) | 2014-07-14 | 2014-07-14 | Without bleeding, the preparation of fast solidifying, hard soon underground carnallite backfill slip and earth-filling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410332911.4A CN104098313B (en) | 2014-07-14 | 2014-07-14 | Without bleeding, the preparation of fast solidifying, hard soon underground carnallite backfill slip and earth-filling method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104098313A CN104098313A (en) | 2014-10-15 |
| CN104098313B true CN104098313B (en) | 2016-06-22 |
Family
ID=51666902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410332911.4A Active CN104098313B (en) | 2014-07-14 | 2014-07-14 | Without bleeding, the preparation of fast solidifying, hard soon underground carnallite backfill slip and earth-filling method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104098313B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104446280A (en) * | 2014-11-06 | 2015-03-25 | 云南省化工研究院 | Method of retarding backfilled mineral slurry in goaf of underground soluble potash mine |
| CN104446323B (en) * | 2014-12-11 | 2016-09-14 | 云南省化工研究院 | A kind of method of soluble solids sylvite ore mining tunnel surface spraying protective agent rapid hardening |
| CN104712359B (en) * | 2015-02-12 | 2016-10-12 | 化工部长沙设计研究院 | A kind of method preparing goaf backfill material with the sylvite ore potassium mine tailing containing magnesium |
| CN111848099B (en) * | 2020-06-15 | 2022-08-19 | 广东韶钢嘉羊新型材料有限公司 | Tailing excited gel filling material and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19758682C2 (en) * | 1997-08-28 | 2002-01-31 | Kali Umwelttechnik Sondershaus | Filler for back filling salt pits |
| CN101864989A (en) * | 2010-04-30 | 2010-10-20 | 中国恩菲工程技术有限公司 | Sylvite goaf filling method |
| CN102536315A (en) * | 2011-12-30 | 2012-07-04 | 中农矿产资源勘探有限公司 | Filling method of potash mine goaf |
| CN103470304A (en) * | 2013-09-17 | 2013-12-25 | 云南省化工研究院 | Method for recharging magnesium chloride mother solution into potash salt ore gob |
| CN103498695A (en) * | 2013-09-17 | 2014-01-08 | 云南省化工研究院 | Method for filling and restoring soluble potassic salt ore shaft solution cavity |
| CN103696783A (en) * | 2012-11-19 | 2014-04-02 | 云南省化工研究院 | Mining roadway protection method for soluble solid potassic salt ore |
-
2014
- 2014-07-14 CN CN201410332911.4A patent/CN104098313B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19758682C2 (en) * | 1997-08-28 | 2002-01-31 | Kali Umwelttechnik Sondershaus | Filler for back filling salt pits |
| CN101864989A (en) * | 2010-04-30 | 2010-10-20 | 中国恩菲工程技术有限公司 | Sylvite goaf filling method |
| CN102536315A (en) * | 2011-12-30 | 2012-07-04 | 中农矿产资源勘探有限公司 | Filling method of potash mine goaf |
| CN103696783A (en) * | 2012-11-19 | 2014-04-02 | 云南省化工研究院 | Mining roadway protection method for soluble solid potassic salt ore |
| CN103470304A (en) * | 2013-09-17 | 2013-12-25 | 云南省化工研究院 | Method for recharging magnesium chloride mother solution into potash salt ore gob |
| CN103498695A (en) * | 2013-09-17 | 2014-01-08 | 云南省化工研究院 | Method for filling and restoring soluble potassic salt ore shaft solution cavity |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104098313A (en) | 2014-10-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104211313B (en) | A kind of phosphogypsum based cementitious material and the application in mine tailing filling | |
| CN103145354B (en) | Compound tailings solidifying agent of a kind of no first-hand datum and its preparation method and application | |
| CN104098313B (en) | Without bleeding, the preparation of fast solidifying, hard soon underground carnallite backfill slip and earth-filling method | |
| CN103626411B (en) | Preparation method of dry powder phosphogypsum base cementing material | |
| CN102659326A (en) | Low-alkaline sulphur-resisting portland cement for road and production method thereof | |
| CN104987117A (en) | Environment-friendly building thermal insulation materials | |
| CN105152601A (en) | Preparation method of gangue base mine cemented filling material | |
| CN101786854A (en) | Tailing cementing material | |
| CN101864988A (en) | Potash salt ore goaf filling method | |
| CN107365129A (en) | It is a kind of to utilize the method for being classified tail salt production sylvite ore cemented filling material | |
| CN104131836A (en) | Production method for underground potassic salt ore goaf backfilling | |
| CN106915941B (en) | Half water ardealite mine filling material and preparation method thereof | |
| CN107473613B (en) | A kind of cement and preparation method thereof using industrial solid-state castoff production | |
| CN107586092B (en) | Sylvite mineral filling material capable of being remotely pumped and preparation method thereof | |
| CN103360011B (en) | Carnallite mine goaf filling method | |
| CN105601141A (en) | Expanding agent for oil well cement and preparation method of expanding agent | |
| CN103803819A (en) | Silicate cement clinker prepared by using marble powder and preparation method thereof | |
| CN104310845B (en) | A kind of self-supporting ability of swimming cement expansive material and preparation method thereof | |
| CN105503116A (en) | Cemented filling material | |
| CN110330304B (en) | High-water-content rapid-setting gob-side entry retaining material and preparation and use methods thereof | |
| CN104446061A (en) | Magnesium oxychloride cement and preparation method thereof | |
| CN103470304A (en) | Method for recharging magnesium chloride mother solution into potash salt ore gob | |
| CN104556755A (en) | Cement for ocean engineering | |
| CN104529204A (en) | Method for reducing hydration heat release of magnesium oxychloride cement | |
| CN112960961B (en) | Phosphorite mountain high-concentration full-tailing gravity-flow filling cementing material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |