CN107935537A - A kind of gelling agent and filling in mine material based on slag - Google Patents
A kind of gelling agent and filling in mine material based on slag Download PDFInfo
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- CN107935537A CN107935537A CN201711203086.8A CN201711203086A CN107935537A CN 107935537 A CN107935537 A CN 107935537A CN 201711203086 A CN201711203086 A CN 201711203086A CN 107935537 A CN107935537 A CN 107935537A
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- Prior art keywords
- slag
- gelling agent
- filling
- mine
- parts
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- 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
- C04B28/30—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 magnesium cements or similar cements
- C04B28/32—Magnesium oxychloride cements, e.g. Sorel cement
-
- 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
The invention discloses a kind of gelling agent based on slag and filling in mine material.It is a kind of to be made of based on the gelling agent of slag the raw material of following mass parts：50~60 parts of slags, 10~25 parts of flyash, 10~25 parts of magnesia oxychloride cement clinkers, 1~10 part of quick lime, 1~10 part of ardealite, 1~5 part of saltcake, 0.1~0.5 part of water-reducing agent.A kind of filling in mine material based on slag is also disclosed that at the same time, which includes the gelling agent based on slag, mine crude tailings and the water.The present invention goes out a kind of material for meeting mine tailing filling using ground granulated blast furnace slag and magnesium manufacture of cement, has the characteristics that early strength is quickly grown.The present invention make use of the slag and tailing of accumulation, solve the problems, such as that slag accumulation impacts environment, while by being utilized to slag, greatly reduce the usage amount of cement, so as to reduce the cost in filling mine, there is more obvious economy.
Description
Technical field
The present invention relates to a kind of gelling agent based on slag and filling in mine material.
Background technology
A kind of waste residue discharged when blast-furnace cinder is manUfaCtUre of pig iron from blast furnace, is a kind of eutectic mixture, can be used more
Kind technique is processed into the valuable materials to serve many purposes.Due to iron-smelting raw material kind and component change and operating procedure because
The influence of element, the composition and property of slag are also different, so that recycling difficulty is of a relatively high, in recent years, with metallurgy
The rapid development of industry, the discharge of slag are continuously increased, at present nearly hundred million tons of China's blast furnace ironmaking water extraction slag annual emissions, recycling
Utilization rate but only has about 38%, so as to cause environmental problem caused by various slags.Therefore slag comprehensive utilization ratio is improved to compel
The eyebrows and eyelashes.
Underground mining also generates substantial amounts of tailings solid waste and underground is mined out while mineral resources are obtained
Area.As the cement of consolidated fill main material, there is setting time is long, scene dehydration is difficult, the low, ore dilution rate that connects top rate
High, the problems such as filling cost is high, restrict application of the bargh to consolidated fill.How filling cost is reduced, be to use glue
Tie one of bargh's main problem urgently to be resolved hurrily of the method for mining by the way of filling.
The content of the invention
It is an object of the invention to provide a kind of gelling agent based on slag and filling in mine material.
The technical solution used in the present invention is：
A kind of gelling agent based on slag, is made of the raw material of following mass parts：50~60 parts of slags, 10~25 parts of fine coal
Ash, 10~25 parts of magnesia oxychloride cements, 1~10 part of quick lime, 1~10 part of ardealite, 1~5 part of saltcake, 0.1~0.5 part of diminishing
Agent.
Slag is blast-furnace cinder.
Flyash is II grade of F class flyash.
The CaO content of quick lime is more than 88wt%.
Water-reducing agent is melamine water reducing agent.
A kind of filling in mine material based on slag, including the above-mentioned gelling agent based on slag, mine crude tailings and water.
The cement-sand ratio of gelling agent and mine crude tailings is 1：(4~8).
The water content of filling in mine material is 25wt%~35wt%.
The beneficial effects of the invention are as follows：
The present invention goes out a kind of material for meeting mine tailing filling using ground granulated blast furnace slag and magnesium manufacture of cement, has early
The characteristics of phase strength development is rapid.The present invention make use of the slag and tailing of accumulation, solve slag accumulation to ring
The problem of border impacts, while by being utilized to slag, the usage amount of cement is greatly reduced, so as to reduce filling
The cost in mine, has more obvious economy.
Embodiment
A kind of gelling agent based on slag, is made of the raw material of following mass parts：50~60 parts of slags, 10~25 parts of fine coal
Ash, 10~25 parts of magnesia oxychloride cements, 1~10 part of quick lime, 1~10 part of ardealite, 1~5 part of saltcake, 0.1~0.5 part of diminishing
Agent.
Preferably, a kind of gelling agent based on slag, is made of the raw material of following mass parts：50~60 parts of slags, 10~
18 parts of flyash, 15~25 parts of magnesia oxychloride cements, 5~7 parts of quick limes, 2~5 parts of ardealites, 2~5 parts of saltcake, 0.5 part of diminishing
Agent.
Preferably, slag is blast-furnace cinder.
Preferably, flyash is II grade of F class flyash.
Preferably, quick lime is high calcium quick lime, its CaO content is more than 88wt%.
Preferably, water-reducing agent is melamine water reducing agent.
A kind of filling in mine material based on slag, including the above-mentioned gelling agent based on slag, mine crude tailings and water.
Preferably, the cement-sand ratio of gelling agent and mine crude tailings is 1：(4~8)；It is further preferred that gelling agent and mine
The cement-sand ratio of crude tailings is 1:6.
Preferably, the water content of filling in mine material is 25wt%~35wt%.
Further, magnesia oxychloride cement of the present invention is with the light burnt powder or low temperature calcination obtained by calcined magnesite stone
Ashes (main component MgO) obtained by dolomite is cementing agent, with magnesium chloride hexahydrate (MgCl2·6H2The water-soluble magnesium salt such as O)
For blender, the cementitious material formed, also referred to as magnesium cement.
Present disclosure is described in further detail below by way of specific embodiment.
In the following examples and comparative example, raw material concrete condition used is as follows：
The chemical analysis of blast-furnace cinder and the ratio of various composition are：SiO2Content is 39.25wt%, and CaO content is
39.36wt%, content of MgO 7.43wt%, Al2O3Content is 12.22wt%, and the oxide content of S is 1.32wt%, other
Oxide accounts for 0.42wt%；The particle diameter distribution of blast-furnace cinder is：Particle of the particle diameter less than 2.65 μm accounts for 9wt%, and particle diameter is less than 5.3
μm particle account for 35wt%, particle of the particle diameter less than 7.55 μm accounts for 53wt%, and particle of the particle diameter less than 10.71 μm accounts for 65wt%,
Particle of the particle diameter less than 26.62 μm accounts for 90wt%.
Quick lime is a kind of high calcium ash, its chemical analysis and ratio are：CaO content is 89.6wt%, and content of MgO is
5.75wt%, SiO2Content is 4.65wt%.
The particle diameter distribution of ardealite is：Particle of the particle diameter less than 3.12 μm accounts for 10wt%, and particle diameter is less than 5.35 μm of particle
40wt% is accounted for, particle of the particle diameter less than 6.83 μm accounts for 40wt%, and particle of the particle diameter less than 7.48 μm accounts for 60wt%, and particle diameter is less than
36.38 μm of particle accounts for 90wt%.
The particle diameter distribution of magnesia oxychloride cement is：Particle of the particle diameter less than 2.68 μm accounts for 10wt%, and particle diameter is less than 5.49 μm
Particle accounts for 30wt%, and particle of the particle diameter less than 7.48 μm accounts for 50wt%, and particle of the particle diameter less than 11.34 μm accounts for 60wt%, particle diameter
Particle less than 32.09 μm accounts for 90wt%.
Saltcake is industrial saltcake, its particle diameter distribution is：Particle of the particle diameter less than 2.75 μm accounts for 10wt%, and particle diameter is less than 5.54
μm particle account for 30wt%, particle of the particle diameter less than 8.61 μm accounts for 50wt%, and particle of the particle diameter less than 13.46 μm accounts for 60wt%,
Particle of the particle diameter less than 35.94 μm accounts for 90wt%.
Embodiment 1：
The gelling agent composition of embodiment 1 is as shown in table 1.
The gelling agent of 1 embodiment 1 of table
| Raw material | Mass parts |
| Blast-furnace cinder | 60 |
| II grade of F class flyash | 10 |
| Quick lime | 7 |
| Ardealite | 5 |
| Magnesia oxychloride cement | 15 |
| Saltcake | 2.5 |
| Melamine water reducing agent | 0.5 |
Embodiment 2：
The gelling agent composition of embodiment 2 is as shown in table 2.
The gelling agent of 2 embodiment 2 of table
| Raw material | Mass parts |
| Blast-furnace cinder | 55 |
| II grade of F class flyash | 15 |
| Quick lime | 5 |
| Ardealite | 2 |
| Magnesia oxychloride cement | 20 |
| Saltcake | 2.5 |
| Melamine water reducing agent | 0.5 |
Embodiment 3：
The gelling agent composition of embodiment 3 is as shown in table 3.
The gelling agent of 3 embodiment 3 of table
| Raw material | Mass parts |
| Blast-furnace cinder | 54.5 |
| II grade of F class flyash | 15 |
| Quick lime | 5 |
| Ardealite | 2 |
| Magnesia oxychloride cement | 15 |
| Saltcake | 3 |
| Melamine water reducing agent | 0.5 |
Embodiment 4：
The gelling agent composition of embodiment 4 is as shown in table 4.
The gelling agent of 4 embodiment 4 of table
| Raw material | Mass parts |
| Blast-furnace cinder | 50 |
| II grade of F class flyash | 14.5 |
| Quick lime | 5 |
| Ardealite | 5 |
| Magnesia oxychloride cement | 20 |
| Saltcake | 5 |
| Melamine water reducing agent | 0.5 |
Embodiment 5：
The gelling agent composition of embodiment 5 is as shown in table 5.
The gelling agent of 5 embodiment 5 of table
Embodiment 6：
The gelling agent composition of embodiment 6 is as shown in table 6.
The gelling agent of 6 embodiment 6 of table
| Raw material | Mass parts |
| Blast-furnace cinder | 50 |
| II grade of F class flyash | 18 |
| Quick lime | 5 |
| Ardealite | 4.5 |
| Magnesia oxychloride cement | 20 |
| Saltcake | 2 |
| Melamine water reducing agent | 0.5 |
Comparative example 1：
The gelling agent composition of comparative example 1 is as shown in table 7.
The gelling agent of 7 comparative example 1 of table
| Raw material | Mass parts |
| Blast-furnace cinder | 50 |
| II grade of F class flyash | 15 |
| Quick lime | 5 |
| Ardealite | 4.5 |
| 32.5R high-early (strength) cements | 25 |
| Saltcake | 2 |
| Melamine water reducing agent | 0.5 |
Comparative example 1 and the difference of embodiment 5 are：Embodiment 5 has used 25 parts of magnesia oxychloride cements, and comparative example 1 is right
The 32.5R high-early (strength) cements that in the market should be used to buy.
Comparative example 2：
The 32.5R high-early (strength) cements that all in the markets of gelling agent raw material used in comparative example 2 are bought.
Experimental program is：
1st, preparing coagulation material is matched somebody with somebody by the formula of embodiment 1~6 and comparative example 1, then with companion's machine stirring 5 minutes is stirred, completely
Stir evenly, it is spare that gelling agent is made；
2nd, by cement-sand ratio 1：6, by the gelling agent of embodiment 1~6 and comparative example 1~2 with being weighed according to quantity with a collection of crude tailings
It is put into mixer and mixes slowly 60s；
3rd, quantitative water is mixed, slurry is configured to the concentration of solid content 70%, quickly stirs 90s；
4th, after pot wall surrounding slurry is scraped in pot, 30s is stirred for, obtains filling for embodiment 1~6 and comparative example 1~2
Fill out paste materials；
5th, uniform slurry will be sufficiently mixed to be poured in three joint-trial mould of 70.7*70.7*70.7mm standards, every group of sample pours
Two groups of note, respectively measuring the intensity of 3 days, 7 days and 28 days；
6th, test block is put into temperature as 20 DEG C, relative humidity is in 90% standard curing box, and the demoulding will examination after conserving 24h
Block is reentered into maintenance in curing box and, to corresponding age, it is surveyed 3 days, 7 days with the speed of 100N/s with full-automatic pressure testing machine
With 28 days intensity, 3 test blocks are tested per age, take uniaxial compressive strength of its average value as the age obturation.
Embodiment 1~6, the strength character of comparative example 1~2 are as shown in table 8 below：
8 uniaxial compressive strength performance comparison of table
| 3 days intensity (MPa) | 7 days intensity (MPa) | 28 days intensity (MPa) | |
| Embodiment 1 | 1.219 | 2.245 | 2.669 |
| Embodiment 2 | 1.237 | 2.099 | 2.979 |
| Embodiment 3 | 1.193 | 2.322 | 2.653 |
| Embodiment 4 | 1.332 | 2.532 | 3.246 |
| Embodiment 5 | 1.325 | 2.122 | 3.084 |
| Embodiment 6 | 1.385 | 2.322 | 3.264 |
| Comparative example 1 | 0.895 | 1.193 | 1.975 |
| Comparative example 2 | 0.793 | 0.872 | 1.756 |
As can be seen from Table 8, filler of the invention its 3 days, 7 days, 28 days uniaxial compressive strengths were all more early than 32.5R strong
Cement is high.By embodiment 5 and comparative example 1 relatively, magnesia oxychloride cement has been used to substitute 32.5R high-early (strength) cements, filling material
The uniaxial compressive strength of material is significantly improved.From the above results, the present invention can substitute cement to carry out mine completely
Filling.
Claims (8)
- A kind of 1. gelling agent based on slag, it is characterised in that：It is made of the raw material of following mass parts：50~60 parts of slags, 10 ~25 parts of flyash, 10~25 parts of magnesia oxychloride cements, 1~10 part of quick lime, 1~10 part of ardealite, 1~5 part of saltcake, 0.1~ 0.5 part of water-reducing agent.
- A kind of 2. gelling agent based on slag according to claim 1, it is characterised in that：Slag is blast-furnace cinder.
- A kind of 3. gelling agent based on slag according to claim 1, it is characterised in that：Flyash is II grade of F class fine coal Ash.
- A kind of 4. gelling agent based on slag according to claim 1, it is characterised in that：The CaO content of quick lime is more than 88wt%.
- A kind of 5. gelling agent based on slag according to claim 1, it is characterised in that：Water-reducing agent is melamine diminishing Agent.
- A kind of 6. filling in mine material based on slag, it is characterised in that：It is based on including Claims 1 to 5 any one of them Gelling agent, mine crude tailings and the water of slag.
- A kind of 7. filling in mine material based on slag according to claim 6, it is characterised in that：Gelling agent is complete with mine The cement-sand ratio of tailings is 1：(4~8).
- A kind of 8. filling in mine material based on slag according to claim 6, it is characterised in that：Filling in mine material Water content is 25wt%~35wt%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711203086.8A CN107935537A (en) | 2017-11-27 | 2017-11-27 | A kind of gelling agent and filling in mine material based on slag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711203086.8A CN107935537A (en) | 2017-11-27 | 2017-11-27 | A kind of gelling agent and filling in mine material based on slag |
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| CN107935537A true CN107935537A (en) | 2018-04-20 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111072296A (en) * | 2019-12-23 | 2020-04-28 | 太原理工大学 | Quick-setting filling cementing material |
| CN111320443A (en) * | 2020-03-14 | 2020-06-23 | 山东坊能新动能科学研究院有限公司 | Acidic slag-based filling material and preparation method thereof |
| CN113248225A (en) * | 2021-05-20 | 2021-08-13 | 安徽开发矿业有限公司 | Mine filling cementing material |
| CN116535181A (en) * | 2023-04-21 | 2023-08-04 | 固岩科技发展有限公司 | Cementing material composition and application thereof |
| CN117185768A (en) * | 2023-09-11 | 2023-12-08 | 中煤地质(湖南)环境科技有限责任公司 | Mine hole plugging material and preparation method and application thereof |
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| WO2013063774A1 (en) * | 2011-11-02 | 2013-05-10 | Empire Technology Development Llc | Solidifying sludge |
| CN107365094A (en) * | 2017-07-05 | 2017-11-21 | 固岩科技发展有限公司 | A kind of preparation method of mine filling paste |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013063774A1 (en) * | 2011-11-02 | 2013-05-10 | Empire Technology Development Llc | Solidifying sludge |
| CN107365094A (en) * | 2017-07-05 | 2017-11-21 | 固岩科技发展有限公司 | A kind of preparation method of mine filling paste |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111072296A (en) * | 2019-12-23 | 2020-04-28 | 太原理工大学 | Quick-setting filling cementing material |
| CN111320443A (en) * | 2020-03-14 | 2020-06-23 | 山东坊能新动能科学研究院有限公司 | Acidic slag-based filling material and preparation method thereof |
| CN113248225A (en) * | 2021-05-20 | 2021-08-13 | 安徽开发矿业有限公司 | Mine filling cementing material |
| CN116535181A (en) * | 2023-04-21 | 2023-08-04 | 固岩科技发展有限公司 | Cementing material composition and application thereof |
| CN117185768A (en) * | 2023-09-11 | 2023-12-08 | 中煤地质(湖南)环境科技有限责任公司 | Mine hole plugging material and preparation method and application thereof |
| CN117185768B (en) * | 2023-09-11 | 2024-04-12 | 中煤地质(湖南)环境科技有限责任公司 | Mine hole plugging material and preparation method and application thereof |
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Application publication date: 20180420 |