CN116120027A - Preparation of silicon dioxide-gypsum composite material and application thereof in mine - Google Patents
Preparation of silicon dioxide-gypsum composite material and application thereof in mine Download PDFInfo
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- CN116120027A CN116120027A CN202211691943.4A CN202211691943A CN116120027A CN 116120027 A CN116120027 A CN 116120027A CN 202211691943 A CN202211691943 A CN 202211691943A CN 116120027 A CN116120027 A CN 116120027A
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- Prior art keywords
- composite material
- mine
- cementing
- retarder
- ore
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- 239000002131 composite material Substances 0.000 title claims abstract description 32
- 229910052602 gypsum Inorganic materials 0.000 title claims abstract description 22
- 239000010440 gypsum Substances 0.000 title claims abstract description 22
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title abstract description 5
- 229910052710 silicon Inorganic materials 0.000 title abstract description 5
- 239000010703 silicon Substances 0.000 title abstract description 5
- 238000003756 stirring Methods 0.000 claims abstract description 20
- 238000005065 mining Methods 0.000 claims abstract description 19
- 239000004568 cement Substances 0.000 claims abstract description 13
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 13
- 239000011707 mineral Substances 0.000 claims abstract description 13
- 239000000843 powder Substances 0.000 claims abstract description 13
- 239000002994 raw material Substances 0.000 claims abstract description 11
- 238000002156 mixing Methods 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000004576 sand Substances 0.000 claims description 8
- 238000011049 filling Methods 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 6
- 230000001276 controlling effect Effects 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000005070 sampling Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 239000002699 waste material Substances 0.000 abstract description 7
- 238000004064 recycling Methods 0.000 abstract description 3
- 239000000945 filler Substances 0.000 abstract description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 3
- 235000011941 Tilia x europaea Nutrition 0.000 description 3
- 239000004571 lime Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 230000003334 potential effect Effects 0.000 description 1
Images
Classifications
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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
- C04B28/14—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
- C04B28/142—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 containing synthetic or waste calcium sulfate cements
- C04B28/144—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 containing synthetic or waste calcium sulfate cements the synthetic calcium sulfate being a flue gas desulfurization product
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F15/00—Methods or devices for placing filling-up materials in underground workings
- E21F15/005—Methods or devices for placing filling-up materials in underground workings characterised by the kind or composition of the backfilling material
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F15/00—Methods or devices for placing filling-up materials in underground workings
- E21F15/08—Filling-up hydraulically or pneumatically
-
- 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
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00724—Uses not provided for elsewhere in C04B2111/00 in mining operations, e.g. for backfilling; in making tunnels or galleries
-
- 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
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Ceramic Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to the technical field of mine mining area fillers, in particular to a preparation method of a silicon dioxide-gypsum composite material and application thereof in mines, wherein desulfurized gypsum, mineral powder and 425 cement are taken and put into a stirring station, and the mixing proportion of the desulfurized gypsum, the mineral powder and the 425 cement is as follows: 40-48% of desulfurized gypsum, 46-52% of mineral powder and 3-8% of 425 cement; after the raw materials are put into a stirring station, retarder is added at the same time, and the moderating proportion of the retarder is as follows: 1.3g-1.8g retarder is added to 1Kg raw material; according to the invention, the retarder is added, so that the cementing of the cementing composite material after meeting water generates certain delay, and mine wastes such as mine tailings and the like are conveniently refilled into mine holes of mining areas as main aggregates. The recycling property of mine waste is improved, and the pollution of the mine waste to the mine environment is avoided.
Description
Technical Field
The invention relates to the technical field of mine mining area fillers, in particular to preparation of a silica-gypsum composite material and application thereof in mines.
Background
With the progress and development of society, mining will be turned to deep ore bodies, "three-lower ore bodies" and other complex difficult-to-mine ore bodies, and filling mining methods and filling process technologies are becoming more and more important.
The existing filling technology is to fill a large amount of concrete or other independent material materials into a mine underground mining area, so that a large amount of tailings cannot be utilized in a mine site, a large amount of cost and time are required for treating the tailings, and the pollution to the environment can be serious if the tailings are not treated, so that a novel composite material is developed aiming at the problems encountered.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the preparation of the silicon dioxide-gypsum composite material and the application of the silicon dioxide-gypsum composite material in mines, and solves the problems of excessive waste and no recycling in mine mining areas.
In order to achieve the above purpose, the present invention provides the following technical solutions: preparation of a silica-gypsum composite material and application thereof in mines:
s1, placing desulfurized gypsum, mineral powder and 425 cement into a stirring station, wherein the mixing proportion of the desulfurized gypsum, the mineral powder and the 425 cement is as follows: 40-48% of desulfurized gypsum, 46-52% of mineral powder and 3-8% of 425 cement;
s2: after the raw materials are put into a stirring station, retarder is added at the same time, and the moderating proportion of the retarder is as follows: 1.3g-1.8g retarder is added to 1Kg raw material;
s3: stirring by a stirring station, correspondingly regulating and controlling the stirring time according to the injection amount of the raw materials, fully stirring to form a cementing composite material, sampling and detecting, and putting into use after the detection is qualified;
s4: injecting the qualified cementing composite material and ore tailings obtained from the ore hole into the ore hole, wherein the ore tailings are main aggregates, and the cementing composite material plays a role in cementing the aggregate ore tailings;
s5: injecting the cementing composite material and ore tailings into an ore tunnel, selecting different ash-sand ratios according to different mine underground mining areas, mixing, and then adding a proper amount of water for cementing;
s6: and (3) observing the glue-fixing condition by a worker, and correspondingly adding the glued composite material and the ore tailings according to the glue-fixing condition until filling the whole underground mining area of the mine is completed.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, the retarder is added, so that the cementing of the cementing composite material after meeting water generates certain delay, and mine wastes such as mine tailings and the like are conveniently refilled into mine holes of mining areas as main aggregates. The recycling property of mine waste is improved, and the pollution of the mine waste to the mine environment is avoided.
2. According to the invention, by using the cementing composite material, a proper mixing ash-sand ratio can be selected according to different situations on site, so that the safety of mining holes in a mining area is improved, and the collapse problem is avoided.
Drawings
FIG. 1 is a schematic flow chart of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Examples
Referring to fig. 1, the present invention provides the following technical solutions: preparation of a silica-gypsum composite material and application thereof in mines:
s1, placing desulfurized gypsum, mineral powder and 425 cement into a stirring station, wherein the mixing proportion of the desulfurized gypsum, the mineral powder and the 425 cement is as follows: 40-48% of desulfurized gypsum, 46-52% of mineral powder and 3-8% of 425 cement;
s2: after the raw materials are put into a stirring station, retarder is added at the same time, and the moderating proportion of the retarder is as follows: 1.3g-1.8g retarder is added to 1Kg raw material;
s3: stirring by a stirring station, correspondingly regulating and controlling the stirring time according to the injection amount of the raw materials, fully stirring to form a cementing composite material, sampling and detecting, and putting into use after the detection is qualified;
s4: injecting the qualified cementing composite material and ore tailings obtained from the ore hole into the ore hole, wherein the ore tailings are main aggregates, and the cementing composite material plays a role in cementing the aggregate ore tailings;
s5: injecting the cementing composite material and ore tailings into an ore tunnel, selecting different ash-sand ratios according to different mine underground mining areas, mixing, and then adding a proper amount of water for cementing;
s6: and (3) observing the glue-fixing condition by a worker, and correspondingly adding the glued composite material and the ore tailings according to the glue-fixing condition until filling the whole underground mining area of the mine is completed.
In the embodiment, in the cementing composite material, the desulfurized gypsum is used as a main efficient excitant to excite 425 cement with potential activity and mineral powder in an inlet way, thereby generating gelation, hardening with ore tailings stones under hydration to form a high-strength filling body.
The cementing composite material of the technical product is detected by Shandong and Fu detection limited companies, wherein the sample number is ZZ19080311, the number of samples is 40Kg, the detection items are compressive strength, and the detection basis is as follows: JGJ/T70-2009;
when the ratio of the mixed lime sand is 1:4, the compressive strength for 1 day is 2.6MPa, the compressive strength for 3 days is 7.9MPa, the compressive strength for 7 days is 13.0MPa, and the compressive strength for 28 days is 25.2MPa;
when the ratio of the mixed lime sand is 1:6, the compressive strength for 1 day is 2.1MPa, the compressive strength for 3 days is 5.7MPa, the compressive strength for 7 days is 10.1MPa, and the compressive strength for 28 days is 20.1MPa;
when the ratio of the mixed lime sand is 1:10, the compressive strength for 1 day is 0.5MPa, the compressive strength for 3 days is 1.7MPa, the compressive strength for 7 days is 2.5MPa, and the compressive strength for 28 days is 5.3MPa;
the working principle and the using flow of the invention are as follows: the staff calculates the component proportion of the composite material to be cemented according to the site requirement of the underground mining area of the mine, and after the configuration is completed, the composite material is transported to the underground mining area of the mine, and the mixed mortar-sand ratio calculated at the time is adopted to be stirred with water and then injected into the underground mining area of the mine for filling.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (1)
1. The preparation of the silica-gypsum composite material and the application thereof in mines are characterized in that: s1: the method comprises the steps of placing desulfurized gypsum, mineral powder and 425 cement into a stirring station, wherein the mixing proportion of the desulfurized gypsum, the mineral powder and the 425 cement is as follows: 40-48% of desulfurized gypsum, 46-52% of mineral powder and 3-8% of 425 cement;
s2: after the raw materials are put into a stirring station, retarder is added at the same time, and the moderating proportion of the retarder is as follows: 1.3g-1.8g retarder is added to 1Kg raw material;
s3: stirring by a stirring station, correspondingly regulating and controlling the stirring time according to the injection amount of the raw materials, fully stirring to form a cementing composite material, sampling and detecting, and putting into use after the detection is qualified;
s4: injecting the qualified cementing composite material and ore tailings obtained from the ore hole into the ore hole, wherein the ore tailings are main aggregates, and the cementing composite material plays a role in cementing the aggregate ore tailings;
s5: injecting the cementing composite material and ore tailings into an ore tunnel, selecting different ash-sand ratios according to different mine underground mining areas, mixing, and then adding a proper amount of water for cementing;
s6: and (3) observing the glue-fixing condition by a worker, and correspondingly adding the glued composite material and the ore tailings according to the glue-fixing condition until filling the whole underground mining area of the mine is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211691943.4A CN116120027A (en) | 2022-12-28 | 2022-12-28 | Preparation of silicon dioxide-gypsum composite material and application thereof in mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211691943.4A CN116120027A (en) | 2022-12-28 | 2022-12-28 | Preparation of silicon dioxide-gypsum composite material and application thereof in mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116120027A true CN116120027A (en) | 2023-05-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211691943.4A Pending CN116120027A (en) | 2022-12-28 | 2022-12-28 | Preparation of silicon dioxide-gypsum composite material and application thereof in mine |
Country Status (1)
| Country | Link |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107522456A (en) * | 2017-07-05 | 2017-12-29 | 固岩科技发展有限公司 | A kind of material for mine filling |
| CN110590199A (en) * | 2019-08-29 | 2019-12-20 | 广东清大同科环保技术有限公司 | Lead-zinc tailing cementing material and preparation method thereof |
| CN115010458A (en) * | 2022-05-16 | 2022-09-06 | 北京安科兴业矿山安全技术研究院有限公司 | Coal mine underground filling material prepared from metal ore overflow tailings and process and application thereof |
-
2022
- 2022-12-28 CN CN202211691943.4A patent/CN116120027A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107522456A (en) * | 2017-07-05 | 2017-12-29 | 固岩科技发展有限公司 | A kind of material for mine filling |
| CN110590199A (en) * | 2019-08-29 | 2019-12-20 | 广东清大同科环保技术有限公司 | Lead-zinc tailing cementing material and preparation method thereof |
| CN115010458A (en) * | 2022-05-16 | 2022-09-06 | 北京安科兴业矿山安全技术研究院有限公司 | Coal mine underground filling material prepared from metal ore overflow tailings and process and application thereof |
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