CN109265124A - A kind of crude tailings cementing material - Google Patents
A kind of crude tailings cementing material Download PDFInfo
- Publication number
- CN109265124A CN109265124A CN201811462615.0A CN201811462615A CN109265124A CN 109265124 A CN109265124 A CN 109265124A CN 201811462615 A CN201811462615 A CN 201811462615A CN 109265124 A CN109265124 A CN 109265124A
- Authority
- CN
- China
- Prior art keywords
- crude tailings
- glue
- cementing material
- material according
- modifying agent
- 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.)
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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
- C04B28/14—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 calcium sulfate cements
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00017—Aspects relating to the protection of the environment
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- 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)
Abstract
A kind of crude tailings cementing material, belongs to filling in mine field.The material consolidates powder by glue and modifying agent forms.Glue consolidates meal component and quality accounting are as follows: grain slag: 70%, lime: 6%, gypsum: 12%, 42.5 cement of P.O: 12%；Modifier component and quality accounting are as follows: Na2SiF6: 50%, KAl (SO4)2·12H2O:25%, Na2CO3: 25%.The addition quality of modifying agent is that glue consolidates the 0.4% of powder.The material is used in the cementing crude tailings more containing fine grained, tailing filling body can be made to have higher intensity, and the material has preparation simply, the reliable advantage of effect.
Description
Technical field
The invention belongs to filling in mine field more particularly to a kind of materials for Binder metal mine crude tailings.
Background technique
Tailing filling goaf is widely used in metal mine at present, in crude tailings particulate of the partial size less than 20 μm generally compared with
More, -20 μm of granule contents are greater than 15% in the crude tailings in most of mines.When use ordinary portland cement as this crude tailings
When the cementing agent of filling slurry, filling slurry is unable to normal consolidation hardening, and strength of filling mass is unable to satisfy mining technology technology
It is required that influence going on smoothly for mining.
For this reason, it is necessary to seek new crude tailings adhesive material, improve the consolidation performance of slurry, improve strength of filling mass,
Technical support is provided for the raising of pack effectiveness, the reduction of filling cost.
Summary of the invention
The technical problem to be solved by the invention is to provide a kind of crude tailings cementing materials.The material is used for cementing contain
The more crude tailings of fine grained can make tailing filling body have higher intensity, and the material has preparation simple, and effect can
By the advantages of.
To achieve the goals above, the present invention adopts the following technical scheme:
A kind of crude tailings cementing material consolidates powder by glue and modifying agent forms.
The glue consolidates meal component and quality accounting are as follows: grain slag: 70%, lime: 6%, gypsum: 12%, 42.5 water of P.O
Mud: 12%.
The grain slag is blast furnace slag.
Grain slag, lime, gypsum and 42.5 cement of P.O is by the solid of levigate powdered no granular sensation.
The modifier component and quality accounting are as follows: Na2SiF6: 50%, KAl (SO4)2·12H2O:25%, Na2CO3:
25%.
The Na2SiF6、KAl(SO4)2·12H2O and Na2CO3It is by the solid of levigate powdered no granular sensation.
The quality of the modifying agent addition is that glue consolidates the 0.4% of silty amount, and modifying agent and glue are consolidated powder and uniformly mixed.
The present invention have it is following the utility model has the advantages that
1. can be used for the crude tailings that cementing -20 μm of granule contents are greater than 15%, tailing filling body is made to have higher intensity.
2. glue is consolidated, and powder raw material is from a wealth of sources, cheap and easy to get, and amount of modifier is few, material assembly sheet is low.
3. material configuration is simple, effect is reliable.
Specific embodiment
The present invention is described further below, but protection scope of the present invention is not limited to specific reality discussed below
Apply the range of mode.
Certain gold mine starches bashing, crude tailings laser particle size analysis test knot using all-tailing cemented filling material
Fruit are as follows: crude tailings median particle diameter d50=52.51 μm, -200 mesh (- 74 μm) account for about 65%.Wherein, -20 μm of granule contents reach
22.17%, belong to ultra-fine crude tailings, large specific surface area, clay content are high, to tailings concentration, filling dehydration and strength of filling mass
All have certain influence.
China Mining Univ. (Beijing) fills tailing filling slurry of the laboratory using different cementitious materials to the mine
Cementation solidifying test is carried out.Battery of tests makees cementing agent, 42.5 cement of P.O and crude tailings matter using 42.5 cement of P.O
For amount than being 1:10, pulp quality concentration is 68%；Second group of test, which is used, makees cementing agent, P.O 42.5 using 42.5 cement of P.O
Cement and crude tailings mass ratio are 1:8, and pulp quality concentration is 68%；The test of third group uses glue to consolidate powder as cementing agent, and glue is solid
Meal component and quality accounting are as follows: grain slag: 70%, lime: 6%, gypsum: 12%, P.O 42.5 cement: 12%, glue consolidates powder and complete
The mass ratio of tailings is 1:10, and pulp quality concentration is 68%；4th group of test is uniformly mixed using glue is consolidated powder and modifying agent
Cementing material afterwards makees cementing agent, and the quality of modifying agent addition is that glue consolidates the 0.4% of silty amount, modifier component and quality accounting
Are as follows: Na2SiF6: 50%, KAl (SO4)2·12H2O:25%, Na2CO3: 25%, the mass ratio of cementing material and crude tailings is 1:
10, pulp quality concentration is 68%.Test result are as follows: single shaft is anti-after the maintenance 7d of the test specimen of battery of tests and after maintenance 28d
Compressive Strength is respectively less than 0.50MPa；Uniaxial compressive strength is 0.81MPa after the maintenance 7d of the test specimen of second group of test, after conserving 28d
Uniaxial compressive strength is 1.09MPa；Uniaxial compressive strength is 1.67MPa after the maintenance 7d of the test specimen of third group test, conserves 28d
Uniaxial compressive strength is 2.60MPa afterwards；Uniaxial compressive strength is 1.50MPa, maintenance after the maintenance 7d of the test specimen of 4th group of test
Uniaxial compressive strength is 3.06MPa after 28d.
Test result shows: when using cementing agent of the ordinary portland cement as this tailing filling slurry, filling
Slurry is unable to normal consolidation hardening, and strength of filling mass is unable to satisfy the requirement of mining technology technology；Consolidate powder and modification using by glue
The cementing material of agent after evenly mixing is cementing agent, and tailing filling body can be made to have higher later strength, be able to satisfy mining
Requirement of the technology to strength of filling mass.
Anyone skilled in the art is formulated using this cementing material, is all fallen under the introduction of this specification
In the protection scope of claims of the present invention.
Claims (7)
1. a kind of crude tailings cementing material consolidates powder by glue and modifying agent forms.
2. a kind of crude tailings cementing material according to claim 1, which is characterized in that the glue consolidates meal component and quality
Accounting are as follows: grain slag: 70%, lime: 6%, gypsum: 12%, 42.5 cement of P.O: 12%.
3. a kind of crude tailings cementing material according to claim 1, which is characterized in that the grain slag is water quenching Blast Furnace Ore
Slag.
4. a kind of crude tailings cementing material according to claim 1, which is characterized in that the grain slag, lime, gypsum and
42.5 cement of P.O is by the solid of levigate powdered no granular sensation.
5. a kind of crude tailings cementing material according to claim 1, which is characterized in that the modifier component and quality
Accounting are as follows: Na2SiF6: 50%, KAl (SO4)2·12H2O:25%, Na2CO3: 25%.
6. a kind of crude tailings cementing material according to claim 1, which is characterized in that the Na2SiF6、KAl
(SO4)2·12H2O and Na2CO3It is by the solid of levigate powdered no granular sensation.
7. a kind of crude tailings cementing material according to claim 1, which is characterized in that the quality of the modifying agent addition
Consolidate silty amount for glue 0.4%, and modifying agent and glue are consolidated powder and are uniformly mixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811462615.0A CN109265124A (en) | 2018-12-03 | 2018-12-03 | A kind of crude tailings cementing material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811462615.0A CN109265124A (en) | 2018-12-03 | 2018-12-03 | A kind of crude tailings cementing material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109265124A true CN109265124A (en) | 2019-01-25 |
Family
ID=65186643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811462615.0A Pending CN109265124A (en) | 2018-12-03 | 2018-12-03 | A kind of crude tailings cementing material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109265124A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110563354A (en) * | 2019-08-19 | 2019-12-13 | 西北矿冶研究院 | Mine full-tailings cementing material |
| CN113800859A (en) * | 2021-10-22 | 2021-12-17 | 山东安实绿色开采技术发展有限公司 | Special cementing powder for full-tailings cementing filling and preparation method thereof |
| CN115028402A (en) * | 2022-05-10 | 2022-09-09 | 山东鲁碧建材有限公司 | Cementing powder for filling tailings with large water-cement ratio and preparation method thereof |
-
2018
- 2018-12-03 CN CN201811462615.0A patent/CN109265124A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110563354A (en) * | 2019-08-19 | 2019-12-13 | 西北矿冶研究院 | Mine full-tailings cementing material |
| CN113800859A (en) * | 2021-10-22 | 2021-12-17 | 山东安实绿色开采技术发展有限公司 | Special cementing powder for full-tailings cementing filling and preparation method thereof |
| CN115028402A (en) * | 2022-05-10 | 2022-09-09 | 山东鲁碧建材有限公司 | Cementing powder for filling tailings with large water-cement ratio and preparation method thereof |
| CN115028402B (en) * | 2022-05-10 | 2023-03-24 | 山东鲁碧建材有限公司 | Cementing powder for filling tailings with large water-cement ratio and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190125 |