CN101445353B - Foaming expansive filling agent used for mine fire prevention - Google Patents
Foaming expansive filling agent used for mine fire prevention Download PDFInfo
- Publication number
- CN101445353B CN101445353B CN2008102364882A CN200810236488A CN101445353B CN 101445353 B CN101445353 B CN 101445353B CN 2008102364882 A CN2008102364882 A CN 2008102364882A CN 200810236488 A CN200810236488 A CN 200810236488A CN 101445353 B CN101445353 B CN 101445353B
- Authority
- CN
- China
- Prior art keywords
- foaming
- filling agent
- intumescing
- aluminium powder
- unslaked lime
- 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
- C04B28/02—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
- C04B28/06—Aluminous cements
-
- 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
Abstract
The invention provides a foaming expansive filling agent used for mine fire prevention, which can be used for plugging certain areas of a mine roadway or a mined-out area to avoid air leakage and isolate oxygen. The foaming expansive filling agent mainly comprises the following components by the weight percentage: 20% to 40% of quick lime, 59% to 79% of sulpho-aluminate cement and 0.5% to 2% of foaming aluminum powder, and has the advantages that the ingredients are simple; the proportion added to water is low; the times of foaming expansion is high; and the strength of the foamed filling agent is higher than that of foamed Portland cement.
Description
Technical field
The invention belongs to the fireproof material field, particularly relate to a kind of foaming and intumescing filling agent that is used for the mine fire control.
Background technology
To mine, be in the tunnel particularly or shutoff is carried out in some zone in worked-out section to the shutoff mentality of designing of preventing and extinguishing fire of coal mine, it mainly acts on is to prevent to leak out starvation; In addition, also to be convenient to unpacking, help resuming production some regional shutoff of tunnel.The foaming and intumescing compaction material is the plugging material of using always.The foaming and intumescing compaction material has physical blowing expansion filling and two kinds of methods of chemicalfoaming expansion filling.Physical blowing expansion filling technology be generally in the slurries that contain tensio-active agent, be blown into stable in properties gas (like N
2) foaming; Chemicalfoaming expansion filling method mainly utilizes aluminium powder of getting angry (the aluminium powder particulate has oil film outward, prevents the aluminium powder surface oxidation) and alkali substance reaction to emit gas foaming.
Chemical blowing process is the solidified process while foaming, if curing speed is slow, the gas of generation is easy to be lost once producing, and the foaming back perhaps occurs because the not enough phenomenon of slump again of solidification intensity.If curing speed is too fast, will occur also not having abundant foamed solidification process to finish basically, make the too small or gas that produces of foam volume that foam avulsion or the bubble that sends are netted connection bubble mostly, these all are unfavorable for leak stopping wind.Materials such as present useful silicate cement, the aluminium powder of getting angry, unslaked lime, plaster stone are as mine foam filling material.But the ordinary Portland cement hydration rate is slow; Curing speed is also slow, regulates curing speed so must add plaster stone, also need add other material simultaneously and increase water-absorbent; Also to add sand or stone etc. and gain in strength, also add cement hardener in the prescription that has and accelerated setting rate.Like this; Just a lot of with silicate cement as the needed starting material component of mine foaming and intumescing filling agent of base-material; And the presetting period of ordinary Portland cement receives the influence of outside temperature bigger; And alkaline matter does not receive Influence of Temperature basically with the time that the aluminium powder of getting angry produces gas, and this has also just had influence on foaming quality (being the foaming and intumescing multiple).In addition, the intensity of ordinary Portland cement is lower, makes the initial strength of foaming back charges increases slowly, and final strength is also very low.During construction, foaming and intumescing filling agent and water need be pumped to the designated area after mixing, and are difficult for pumping after in batching, adding sand or stone.Moreover amount of water was few when this proportioning was constructed, and the solid material amount that needs is many, and the slurries initial consistency that makes is very big, and slurrying and pumping have been increased difficulty.In addition, this method foaming and intumescing multiple is little, and it is big to fill the identical needed quantity of material of volume, has increased the tunnel traffic capacity.
The content of invention
Problem to be solved by this invention provides a kind of foaming and intumescing filling agent that is used for the mine fire control, and its batching is simple, and the ratio that Xiang Shuizhong adds is little, the foaming and intumescing multiple high, and the charges strength ratio silicate cement foaming intensity after the foaming is high.
The technical scheme that addresses the above problem is: the foaming and intumescing filling agent that is used for mine fire control that is provided mainly is made up of unslaked lime, get angry aluminium powder and aluminosulfate cement; Weight percent between them is: unslaked lime 20%～40%; Aluminosulfate cement 59%～79%; The aluminium powder 0.5%～2% of getting angry, aforementioned three kinds of component sums are 100%.Above-mentioned mixing of materials is promptly become foaming and intumescing filling agent of the present invention after evenly, and it is a kind of pulverulent material.
Preferred ratio is: unslaked lime 25%～35%, aluminosulfate cement 64%～74%, the aluminium powder 0.7%～1.5% of getting angry.
For further accelerating curing speed, can add Calcium Chloride Powder Anhydrous again, or SODIUM SULPHATE ANHYDROUS 99PCT, or plaster stone.The Calcium Chloride Powder Anhydrous add-on generally can account for 1%～5% of whole foaming and intumescing filling agent weight; The SODIUM SULPHATE ANHYDROUS 99PCT add-on generally can account for 1%～3% of whole foaming and intumescing filling agent weight; The plaster stone add-on generally can account for 1%～5% of whole foaming and intumescing filling agent weight.
For further improving foaming effect, can add tensio-active agents such as sodium lauryl sulphate, its add-on can be 0.1%～1% of whole foaming and intumescing filling agent weight; Also can add flyash for reducing cost and replace the part aluminosulfate cement, but its add-on should be less than 20% of whole foaming and intumescing filling agent weight.
Foaming and intumescing filling agent provided by the invention adds the water post-foaming, is chemical blowing process, and foaming back volume does not shrink, and the bubble stabilizes that is produced, foam expansion is high, intensity is high, is convenient to automated construction, the passage that leaks out of shutoff forever, no secondary ignition possibility.Only need during use it is added in the entry, get final product with being pumped to fill area, so easy construction.The water that generally adds 2 parts in every part of foaming and intumescing filling agent, the foaming and intumescing multiple can reach 5～6 times of solid material volume.
Embodiment
Embodiment 1
The foaming and intumescing filling agent is mixed and is formed by unslaked lime, get angry aluminium powder and aluminosulfate cement, and their weight ratio is: unslaked lime 30%, aluminosulfate cement 69%, the aluminium powder 1% of getting angry.Be the water that adds 2 times of weight of above-mentioned foaming and intumescing filling agent under 25 ℃ the situation in temperature, thickening gradually after 10 seconds lost flowability in 3 minutes, accomplished foaming in 5 minutes, and foaming back volume is for expect 5.6 times of volume admittedly, and foaming back ultimate compression strength is greater than 0.2MPa.This foaming and intumescing filling agent adds the reaction process and the temperature correlation of water foaming, if temperature during greater than 25 ℃, each reaction times in advance a bit; Temperature is during less than 25 ℃, reaction time delay, and temperature is low more, and time of lag is long more.
Embodiment 2
The foaming and intumescing filling agent is that the Calcium Chloride Powder Anhydrous of 28% unslaked lime, 69% aluminosulfate cement, 1% get angry aluminium powder and 2% is formed by weight percent.The water that adds 2 times of weight of above-mentioned foaming and intumescing filling agent during use, foaming back volume is for expect 5.4 times of volume admittedly, foaming back intensity is greater than 0.2MPa.
Embodiment 3
The composition of foaming and intumescing filling agent and weight proportion are: unslaked lime 28.5%, aluminosulfate cement 69%, the aluminium powder 1% of getting angry, SODIUM SULPHATE ANHYDROUS 99PCT 1.5%.The water that adds 2 times of weight of above-mentioned foaming and intumescing filling agent during use, foaming back volume is for expect 5.4 times of volume admittedly, foaming back intensity is greater than 0.2MPa.
Embodiment 4
The composition of foaming and intumescing filling agent and weight proportion are: unslaked lime 27%, aluminosulfate cement 69%, the aluminium powder 1% of getting angry, plaster stone 3%.The water that adds 2 times of weight of above-mentioned foaming and intumescing filling agent during use, foaming back volume is for expect 5.4 times of volume admittedly, foaming back intensity is greater than 0.2MPa.
Embodiment 5
The composition of foaming and intumescing filling agent and weight proportion are: unslaked lime 29.9%, aluminosulfate cement 69%, the aluminium powder 1% of getting angry, sodium lauryl sulphate 0.1%.The water that adds 2 times of weight of above-mentioned foaming and intumescing filling agent during use, foaming back volume is for expect 5.8 times of volume admittedly, foaming back intensity is greater than 0.2MPa.
Embodiment 6
The composition of foaming and intumescing filling agent and weight proportion are: unslaked lime 26.9%, aluminosulfate cement 69%, the aluminium powder 1% of getting angry, plaster stone 3%, sodium lauryl sulphate 0.1%.The water that adds 2 times of weight of above-mentioned foaming and intumescing filling agent during use, foaming back volume is for expect 5.5 times of volume admittedly, foaming back intensity is greater than 0.2.
Embodiment 7
The composition of foaming and intumescing filling agent and weight proportion are: unslaked lime 26.9%: aluminosulfate cement 64%, flyash 5%, the aluminium powder 1% of getting angry, plaster stone 3%, sodium lauryl sulphate 0.1%.The water that adds 2 times of weight of above-mentioned foaming and intumescing filling agent during use, foaming back volume is for expect 5.5 times of volume admittedly, foaming back intensity is greater than 0.1MPa.
It is constant basically to add Calcium Chloride Powder Anhydrous, SODIUM SULPHATE ANHYDROUS 99PCT or plaster stone post-foaming expansion reaction speed, and Strength Changes is not obvious, but has improved curing speed.Intensity can slightly reduce after adding flyash, but still greater than 0.1MPa.
Foaming and intumescing filling agent of the present invention with existing be that the foaming and intumescing filling agent of base-material is compared and can be known with the Portland cement: the amount of water of foaming and intumescing filling agent that with the ordinary Portland cement is base-material is less; Be about 50% of filling agent powder weight; Volume after its foaming is about 2 times of filling agent powder; Foaming back initial strength is generally less than 0.1Mpa, and pumping relatively poor (not easy-to-use pump delivery); And the amount of water of foaming and intumescing filling agent of the present invention is many, is about 2 times of filling agent powder weight, and the volume after its foaming is about 5～6 times of filling agent powder; Foaming back initial strength is generally greater than 0.2Mpa; Have only add flyash after intensity slightly descend, but still greater than 0.1Mpa, and with water mixed early stage be dilute slurry; Therefore just retrogradation gradually after 30 seconds helps automated construction.
Claims (2)
1. foaming and intumescing filling agent that is used for mine fire control is characterized in that mainly being made up of unslaked lime, get angry aluminium powder and aluminosulfate cement, and the weight percent between them is: unslaked lime 20%～40%; The aluminium powder 0.5%～2% of getting angry; Aluminosulfate cement 59%～79%, aforementioned three kinds of component sums are 100%.
2. foaming and intumescing filling agent according to claim 1 is characterized in that said unslaked lime, the weight percent of get angry aluminium powder and aluminosulfate cement is: unslaked lime 25%～35%; The aluminium powder 0.7%～1.5% of getting angry; Aluminosulfate cement 64%～74%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102364882A CN101445353B (en) | 2008-12-26 | 2008-12-26 | Foaming expansive filling agent used for mine fire prevention |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102364882A CN101445353B (en) | 2008-12-26 | 2008-12-26 | Foaming expansive filling agent used for mine fire prevention |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101445353A CN101445353A (en) | 2009-06-03 |
| CN101445353B true CN101445353B (en) | 2012-03-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102364882A Expired - Fee Related CN101445353B (en) | 2008-12-26 | 2008-12-26 | Foaming expansive filling agent used for mine fire prevention |
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| Country | Link |
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| CN (1) | CN101445353B (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103820091B (en) * | 2014-03-12 | 2016-08-24 | 宿州市金鼎安全技术股份有限公司 | A kind of novel inorganic sealing material |
| CN103992780A (en) * | 2014-05-23 | 2014-08-20 | 中国矿业大学 | Additive for hole-sealing material, novel hole-sealing material prepared by utilizing additive and application method of novel hole-sealing material |
| CN105238374A (en) * | 2014-06-18 | 2016-01-13 | 阳泉市高星建材外加剂有限公司 | Hole sealing material, and preparation method and using method thereof |
| CN104230278B (en) * | 2014-09-11 | 2016-07-13 | 北京东方雨虹防水技术股份有限公司 | A kind of colliery foamed cement and preparation and application thereof |
| CN105152595A (en) * | 2015-07-29 | 2015-12-16 | 兰州有色冶金设计研究院有限公司 | Shock-absorption expansion filling material used for filling deep goaf and preparation method |
| CN105238375B (en) * | 2015-10-23 | 2018-05-08 | 中国石油化工股份有限公司 | A kind of high intensity self-expanding sealing agent |
| CN105712688A (en) * | 2016-01-27 | 2016-06-29 | 济南大学 | Fluorogypsum-based mine filling material and use method thereof |
| CN106220216B (en) * | 2016-07-11 | 2019-04-02 | 中国矿业大学(北京) | A kind of high-strength mining expansion filling fireproofing extinguishing materials and its application method |
| CN110256033B (en) * | 2019-03-22 | 2021-07-30 | 山东科技大学 | High-porosity foam for spontaneous combustion control of coal in goaf and preparation method thereof |
| CN110841238B (en) * | 2019-11-29 | 2021-03-19 | 湖南科技大学 | Phosphogypsum-based self-gas-production expansion slurry fire prevention and extinguishing material and preparation method thereof |
| CN112661437A (en) * | 2020-12-24 | 2021-04-16 | 临汾市鑫明预拌有限公司 | Concrete foaming agent |
| CN113929490A (en) * | 2021-10-22 | 2022-01-14 | 山西鸿太旭飞能源科技有限公司 | Material for preventing and extinguishing easily spontaneous combustion deposits and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1042139A (en) * | 1988-10-26 | 1990-05-16 | 东北内蒙古煤炭工业联合公司长春煤炭科学研究所 | Mine expansion fire stopping-up material |
| CN1060082A (en) * | 1990-09-27 | 1992-04-08 | 广东省煤炭工业研究所 | Foamed cement |
-
2008
- 2008-12-26 CN CN2008102364882A patent/CN101445353B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1042139A (en) * | 1988-10-26 | 1990-05-16 | 东北内蒙古煤炭工业联合公司长春煤炭科学研究所 | Mine expansion fire stopping-up material |
| CN1060082A (en) * | 1990-09-27 | 1992-04-08 | 广东省煤炭工业研究所 | Foamed cement |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2005-179148A 2005.07.07 |
| JP特开平8-337455A 1996.12.24 |
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| Publication number | Publication date |
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| CN101445353A (en) | 2009-06-03 |
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Granted publication date: 20120321 Termination date: 20211226 |
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