CN115073117B - 矿用低温超高结晶水速凝充填支护材料及其制备方法 - Google Patents
矿用低温超高结晶水速凝充填支护材料及其制备方法 Download PDFInfo
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- CN115073117B CN115073117B CN202210738787.6A CN202210738787A CN115073117B CN 115073117 B CN115073117 B CN 115073117B CN 202210738787 A CN202210738787 A CN 202210738787A CN 115073117 B CN115073117 B CN 115073117B
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- fine powder
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- sodium
- cement clinker
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- 239000000463 material Substances 0.000 title claims abstract description 138
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 64
- 238000011049 filling Methods 0.000 title claims abstract description 23
- 238000005065 mining Methods 0.000 title claims abstract description 13
- 239000013078 crystal Substances 0.000 title claims abstract description 5
- 238000002360 preparation method Methods 0.000 title claims description 6
- 239000000843 powder Substances 0.000 claims abstract description 124
- 239000002002 slurry Substances 0.000 claims abstract description 105
- 239000000375 suspending agent Substances 0.000 claims abstract description 41
- 239000004568 cement Substances 0.000 claims abstract description 40
- 238000000227 grinding Methods 0.000 claims abstract description 32
- 239000002910 solid waste Substances 0.000 claims abstract description 26
- 239000000203 mixture Substances 0.000 claims abstract description 24
- 239000010440 gypsum Substances 0.000 claims abstract description 20
- 229910052602 gypsum Inorganic materials 0.000 claims abstract description 20
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 18
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims abstract description 12
- 235000011941 Tilia x europaea Nutrition 0.000 claims abstract description 12
- 239000004571 lime Substances 0.000 claims abstract description 12
- 239000003623 enhancer Substances 0.000 claims abstract description 4
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims abstract description 3
- 238000002156 mixing Methods 0.000 claims description 26
- 239000002893 slag Substances 0.000 claims description 23
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 18
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 claims description 16
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims description 15
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 15
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims description 15
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims description 15
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 14
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 14
- 239000012744 reinforcing agent Substances 0.000 claims description 12
- PUZPDOWCWNUUKD-UHFFFAOYSA-M sodium fluoride Chemical compound [F-].[Na+] PUZPDOWCWNUUKD-UHFFFAOYSA-M 0.000 claims description 12
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 claims description 12
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims description 11
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 9
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 claims description 9
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims description 9
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims description 9
- 150000004645 aluminates Chemical class 0.000 claims description 9
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 9
- 239000000920 calcium hydroxide Substances 0.000 claims description 9
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 9
- 239000000292 calcium oxide Substances 0.000 claims description 9
- 235000012255 calcium oxide Nutrition 0.000 claims description 9
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims description 9
- 235000002639 sodium chloride Nutrition 0.000 claims description 9
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 8
- 239000004354 Hydroxyethyl cellulose Substances 0.000 claims description 8
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 claims description 8
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 claims description 8
- 229910001629 magnesium chloride Inorganic materials 0.000 claims description 8
- 235000011147 magnesium chloride Nutrition 0.000 claims description 8
- 235000019832 sodium triphosphate Nutrition 0.000 claims description 8
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 7
- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 claims description 7
- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 claims description 7
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 7
- 229920000609 methyl cellulose Polymers 0.000 claims description 7
- 239000001923 methylcellulose Substances 0.000 claims description 7
- 235000010981 methylcellulose Nutrition 0.000 claims description 7
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 claims description 7
- 229910000027 potassium carbonate Inorganic materials 0.000 claims description 7
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 6
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 6
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 6
- YDEXUEFDPVHGHE-GGMCWBHBSA-L disodium;(2r)-3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfonatopropyl)phenoxy]propane-1-sulfonate Chemical compound [Na+].[Na+].COC1=CC=CC(C[C@H](CS([O-])(=O)=O)OC=2C(=CC(CCCS([O-])(=O)=O)=CC=2)OC)=C1O YDEXUEFDPVHGHE-GGMCWBHBSA-L 0.000 claims description 6
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 claims description 6
- 239000011591 potassium Substances 0.000 claims description 6
- 229960003975 potassium Drugs 0.000 claims description 6
- 229910052700 potassium Inorganic materials 0.000 claims description 6
- NROKBHXJSPEDAR-UHFFFAOYSA-M potassium fluoride Chemical compound [F-].[K+] NROKBHXJSPEDAR-UHFFFAOYSA-M 0.000 claims description 6
- LJCNRYVRMXRIQR-OLXYHTOASA-L potassium sodium L-tartrate Chemical compound [Na+].[K+].[O-]C(=O)[C@H](O)[C@@H](O)C([O-])=O LJCNRYVRMXRIQR-OLXYHTOASA-L 0.000 claims description 6
- 229940074439 potassium sodium tartrate Drugs 0.000 claims description 6
- 150000003839 salts Chemical class 0.000 claims description 6
- 239000011775 sodium fluoride Substances 0.000 claims description 6
- 235000013024 sodium fluoride Nutrition 0.000 claims description 6
- 235000011006 sodium potassium tartrate Nutrition 0.000 claims description 6
- 235000010265 sodium sulphite Nutrition 0.000 claims description 6
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 claims description 6
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 5
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 5
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 claims description 5
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 5
- 239000001110 calcium chloride Substances 0.000 claims description 5
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 5
- 235000011148 calcium chloride Nutrition 0.000 claims description 5
- 239000010881 fly ash Substances 0.000 claims description 5
- 229910021487 silica fume Inorganic materials 0.000 claims description 5
- 239000001632 sodium acetate Substances 0.000 claims description 5
- 235000017281 sodium acetate Nutrition 0.000 claims description 5
- UNXRWKVEANCORM-UHFFFAOYSA-I triphosphate(5-) Chemical compound [O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O UNXRWKVEANCORM-UHFFFAOYSA-I 0.000 claims description 5
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 claims description 4
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 claims description 4
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 claims description 4
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 claims description 4
- 229960001763 zinc sulfate Drugs 0.000 claims description 4
- 229910000368 zinc sulfate Inorganic materials 0.000 claims description 4
- CBOCVOKPQGJKKJ-UHFFFAOYSA-L Calcium formate Chemical compound [Ca+2].[O-]C=O.[O-]C=O CBOCVOKPQGJKKJ-UHFFFAOYSA-L 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 239000004115 Sodium Silicate Substances 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- SLINHMUFWFWBMU-UHFFFAOYSA-N Triisopropanolamine Chemical compound CC(O)CN(CC(C)O)CC(C)O SLINHMUFWFWBMU-UHFFFAOYSA-N 0.000 claims description 3
- -1 accelerator Substances 0.000 claims description 3
- 229940103272 aluminum potassium sulfate Drugs 0.000 claims description 3
- 238000009835 boiling Methods 0.000 claims description 3
- 239000004281 calcium formate Substances 0.000 claims description 3
- 229940044172 calcium formate Drugs 0.000 claims description 3
- 235000019255 calcium formate Nutrition 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 150000004683 dihydrates Chemical class 0.000 claims description 3
- 229960004887 ferric hydroxide Drugs 0.000 claims description 3
- IEECXTSVVFWGSE-UHFFFAOYSA-M iron(3+);oxygen(2-);hydroxide Chemical compound [OH-].[O-2].[Fe+3] IEECXTSVVFWGSE-UHFFFAOYSA-M 0.000 claims description 3
- 235000006408 oxalic acid Nutrition 0.000 claims description 3
- GRLPQNLYRHEGIJ-UHFFFAOYSA-J potassium aluminium sulfate Chemical compound [Al+3].[K+].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O GRLPQNLYRHEGIJ-UHFFFAOYSA-J 0.000 claims description 3
- 239000001103 potassium chloride Substances 0.000 claims description 3
- 235000011164 potassium chloride Nutrition 0.000 claims description 3
- 239000011698 potassium fluoride Substances 0.000 claims description 3
- 235000003270 potassium fluoride Nutrition 0.000 claims description 3
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 claims description 3
- 229910052939 potassium sulfate Inorganic materials 0.000 claims description 3
- 235000011151 potassium sulphates Nutrition 0.000 claims description 3
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 3
- 239000011780 sodium chloride Substances 0.000 claims description 3
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 239000011592 zinc chloride Substances 0.000 claims description 3
- 235000005074 zinc chloride Nutrition 0.000 claims description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 2
- 239000003513 alkali Substances 0.000 claims description 2
- 229910021538 borax Inorganic materials 0.000 claims description 2
- 239000001508 potassium citrate Substances 0.000 claims description 2
- 229960002635 potassium citrate Drugs 0.000 claims description 2
- QEEAPRPFLLJWCF-UHFFFAOYSA-K potassium citrate (anhydrous) Chemical compound [K+].[K+].[K+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O QEEAPRPFLLJWCF-UHFFFAOYSA-K 0.000 claims description 2
- 235000011082 potassium citrates Nutrition 0.000 claims description 2
- 239000011734 sodium Substances 0.000 claims description 2
- 229910052708 sodium Inorganic materials 0.000 claims description 2
- 239000001488 sodium phosphate Substances 0.000 claims description 2
- 229910000162 sodium phosphate Inorganic materials 0.000 claims description 2
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 2
- 235000011152 sodium sulphate Nutrition 0.000 claims description 2
- 239000004328 sodium tetraborate Substances 0.000 claims description 2
- 235000010339 sodium tetraborate Nutrition 0.000 claims description 2
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 claims description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims 1
- 229910052731 fluorine Inorganic materials 0.000 claims 1
- 239000011737 fluorine Substances 0.000 claims 1
- 231100000956 nontoxicity Toxicity 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 abstract description 2
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 30
- 230000000052 comparative effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 239000000654 additive Substances 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- 230000000996 additive effect Effects 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- JCBJVAJGLKENNC-UHFFFAOYSA-M potassium ethyl xanthate Chemical group [K+].CCOC([S-])=S JCBJVAJGLKENNC-UHFFFAOYSA-M 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- RFRMMZAKBNXNHE-UHFFFAOYSA-N 6-[4,6-dihydroxy-5-(2-hydroxyethoxy)-2-(hydroxymethyl)oxan-3-yl]oxy-2-(hydroxymethyl)-5-(2-hydroxypropoxy)oxane-3,4-diol Chemical compound CC(O)COC1C(O)C(O)C(CO)OC1OC1C(O)C(OCCO)C(O)OC1CO RFRMMZAKBNXNHE-UHFFFAOYSA-N 0.000 description 1
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 description 1
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical group [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 description 1
- 229920001732 Lignosulfonate Polymers 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 229940006116 lithium hydroxide Drugs 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000011414 polymer cement Substances 0.000 description 1
- 235000007686 potassium Nutrition 0.000 description 1
- 229940093956 potassium carbonate Drugs 0.000 description 1
- 229940093914 potassium sulfate Drugs 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 229940001593 sodium carbonate Drugs 0.000 description 1
- 229940001482 sodium sulfite Drugs 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 239000011975 tartaric acid Substances 0.000 description 1
- 235000002906 tartaric acid Nutrition 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
- 150000003751 zinc Chemical class 0.000 description 1
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
- C04B28/141—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 dihydrated gypsum before the final hardening step, e.g. forming a dihydrated gypsum product followed by a de- and rehydration step
-
- 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
-
- 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
- C04B28/143—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 phosphogypsum
-
- 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
- C04B28/145—Calcium sulfate hemi-hydrate with a specific crystal form
-
- 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
- C04B28/16—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 anhydrite, e.g. Keene's cement
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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Abstract
本发明涉及一种矿用低温超高结晶水速凝充填支护材料,所述材料由比表面积均为350~600m2/kg的甲料细粉和乙料细粉组成;其中,所述甲料细粉由Al2O3含量>19%的水泥熟料、固体废弃物、助磨剂、缓凝剂、早期剂和悬浮剂组成的混合物料经粉磨后得到;所述乙料细粉由石膏、石灰、固体废弃物、速凝剂、增强剂、悬浮剂组成的混合物料经粉磨后得到。用甲料细粉、乙料细粉制备的浆料分别单独放置2~24小时不凝固,两种浆料混合后,5~45分钟即可凝固,是良好的充填支护材料,该材料中水的含量达91.6%以上,具有原材料来源广、成本低、增阻快、韧性好、无害、无毒、无污染等特点。
Description
技术领域
本发明涉及矿井支护材料技术领域,尤其涉及一种矿用低温超高结晶水速凝充填支护材料及其制备方法。
背景技术
随着我国经济持续高速稳定发展,能源、资源需求旺盛,使矿山开采延伸速度加快,采深进一步加大,随着开采深度的增加和开采条件的日益复杂,地压控制、安全问题日益突出,利用充填体进行地压管理、控制围岩崩落和地表下沉,保护地表建筑物,缓和大面积地压活动,以保护地下作业空间的安全。在有色、煤炭等行业得到广泛的应用。
在煤矿巷道掘进或使用过程中,由于顶板破碎或者受采动影响,巷道会发生冒顶或出现超高区域,目前主要采用高分子材料、水泥、充填材料进行注浆加固或充填。高分子材料成本较高,有毒、腐蚀性,且有水存在时极易发泡致使阻燃性降低,存在自燃风险;另外,通风闭墙是常见的通风构筑物之一,传统闭墙构筑方法主要包括砖砌、浇筑混凝土,以及水泥沙喷筑等方式,均存在材料运输量大,施工周期长,作业环境恶劣等问题,更重要的是墙体可变形量小,受采动影响后,受压开裂,造成瓦斯泄漏,存在较大的安全隐患。为防止前述事故发生,常需要寻找性能好的充填支护材料替代传统的充填材料。
用目前市售的充填材料,充填支护时,常需要将两种细粉分别加入水混合均匀制备得到两种浆料,再将两种浆料混合后输送至待充填位置,为保证两种浆料混合后能凝固,制备充填浆料一般需要用大于15℃的水,冬季矿井充填用水温低时,需要把水加热到15℃以上使用。
当冬季矿井充填用水温低入15℃时,常常出现充填浆体不凝固的情况。
发明内容
本发明所要解决的技术问题是提供一种矿用低温超高结晶水速凝充填支护材料及其制备方法。
为解决上述问题,本发明所采取的技术方案是:
一种矿用低温超高结晶水速凝充填支护材料,其特征在于,所述材料由比表面积均为350~600m2/kg的甲料细粉和乙料细粉组成;
其中,所述甲料细粉由Al2O3含量>19%的水泥熟料、固体废弃物、助磨剂、缓凝剂、早期剂和悬浮剂组成的混合物料经粉磨后得到;
所述乙料细粉由石膏、石灰、固体废弃物、速凝剂、增强剂、悬浮剂组成的混合物料经粉磨后得到。
作为发明的一种实施方式,所述甲料细粉的配比按重量份数计为:水泥熟料65~99.8份、固体废弃物0.1~20份、助磨剂0.05~5份、缓凝剂0.05~3份、早期剂0.05~5份、悬浮剂0.05~2份。
作为发明的一种实施方式,所述甲料细粉比表面积均为356~600m2/kg;
所述甲料细粉的配比按重量份数计为:水泥熟料70~85份、固体废弃物10~20份、助磨剂0.5~2.7份、缓凝剂0.5~2份、早期剂1.6~4.8份、悬浮剂0.4~0.5份。
作为发明的一种实施方式,所述水泥熟料由铝酸盐水泥熟料、硫铝酸盐水泥熟料、铁铝酸盐水泥熟料、氟铝酸盐水泥熟料中任意一种或任意两种或两种以上的混合;
所述甲料细粉中的固体废弃物由矿渣粉、钢渣粉、铜渣粉、粉煤灰、硅灰中任意一种或任意两种或两种以上的混合。
作为发明的一种实施方式,所述助磨剂由三乙醇胺、三异丙醇胺、乙二醇、丙二醇、二甘醇、丙三醇、乙酸钠中任意一种或任意两种或两种以上的混合;
所述缓凝剂由柠檬酸及其盐、硼酸及其盐、酒石酸及其盐、草酸、锌盐、磷酸盐、木质素磺酸盐中任意一种或任意两种或两种以上的混合;
所述早期剂由氯化钾、氯化钠、氯化钙、氯化镁、氯化锌、氯化锂、三氧化二铁中任意一种或任意两种或两种以上的混合。
作为发明的一种实施方式,所述乙料细粉的配比按重量份数计为:石膏50~90份、石灰5~50份、其它物料1~30份、速凝剂0.05~10份、增强剂0.05~5份、悬浮剂0.05~2份。
作为发明的一种实施方式,所述乙料细粉比表面积均为352~593m2/kg;
所述乙料细粉的配比按重量份数计为:石膏60~65份、石灰19~25份、固体废弃物8~10份、速凝剂3.2~6.4份、增强剂1.5~4份、悬浮剂0.3~0.8份。
作为发明的一种实施方式,所述石膏由二水石膏、天然硬石膏、磷石膏、氟石膏、盐石膏、半水石膏中任意两种或两种以上的混合;
所述石灰由生石灰、氢氧化钙中任意一种或两种的混合;
所述乙料中的固体废弃物由电石渣、碱渣、沸腾炉渣、碳酸钙粉中的任意一种或两种的混合。
作为发明的一种实施方式,所述速凝剂由市场销售的水泥速凝剂、氢氧化铁、碳酸钾、碳酸钠、氢氧化锂、氟化钾、氟化钠、硅酸钠、氟硅酸钠中任意一种或两种的混合;
所述增强剂由硫酸钾、硫酸钠、亚硫酸钠、硫酸铝钾、甲酸钙、三聚磷酸钾、三聚磷酸钠任意一种或两种的混合。
作为发明的一种实施方式,所述悬浮剂由甲基纤维素、羧甲基纤维素、羟丙基甲基纤维素、羟乙基纤维素中的一种或/和某几种的混合物组成。
第二方面,提供了一种矿用低温超高结晶水速凝充填支护材料的制备方法,包括以下步骤:
(1)将水泥熟料、固体废弃物、助磨剂、缓凝剂、早期剂和悬浮剂组成的混合物料粉磨至比表面积为350~600m2/kg得到甲料细粉,然后加入甲料细粉总重量1~11倍、且水温大于6℃的水混合均匀,得到浆料A;
(2)将石膏、石灰、矿渣粉、速凝剂、增强剂、悬浮剂组成的混合物料粉磨至比表面积为350~600m2/kg得到乙料细粉,然后加入乙料细粉总重量1~11倍、且水温大于6℃的水混合均匀水混合均匀,得到浆料B;
(3)将浆料A和浆料B按1:( 0.8~1.2)重量比混合,所得浆料凝结时间为5~45分钟。
作为发明的一种实施方式,步骤(1)中,加入甲料细粉总重量3~11倍、且水温大于6℃的水混合均匀。
作为发明的一种实施方式,步骤(1)中,加入甲料细粉总重量5~11倍、且水温大于6℃的水混合均匀。
作为发明的一种实施方式,步骤(2)中,加入甲料细粉总重量3~11倍、且水温大于6℃的水混合均匀。
作为发明的一种实施方式,步骤(2)中,加入甲料细粉总重量5~11倍、且水温大于6℃的水混合均匀。
作为发明的一种实施方式,步骤(3)中,将浆料A和浆料B按1: 1重量比混合,所得浆料凝结时间为5~10分钟。
采用上述技术方案所产生的有益效果在于:
(1)本发明通过在甲料细粉中添加特定质量百分比的水泥熟料、固体废弃物、助磨剂、缓凝剂、早期剂和悬浮剂,且选择特定的悬浮剂种类、基体种类和添加剂种类,研磨至比表面积350~600m2/kg之间;以及,通过在乙料细粉中添加特定质量百分比的石膏、石灰、固体废弃物、速凝剂、增强剂、悬浮剂,且选择特定的悬浮剂种类、基体种类和添加剂种类,研磨至比表面积350~600m2/kg之间,使得二者的浆料在混合后,大幅度降低了由其得到均匀浆料的使用水温度下限,即使在冬季矿井施工时,也可以直接使用露天的低温水。
(2)本发明通过甲料细粉得到的浆料A和通过乙料细粉得到的浆料B分别单独放置24小时不凝固,但是将浆料A和浆料B混合在一起后,在特定悬浮剂种类与其他添加剂之间的协同作用下,在冬季使用低温水制备的浆料混合后,也能促进浆体反应速度,使得浆体在5~10分钟即可凝固,是良好的充填支护材料。
(3)本发明中,在利用甲料细粉和乙料细粉制备浆料A和浆料B时,均加入了相应细粉总重量1~11倍的水,水的含量(重量比)可达91.6%以上,尤其是在加入相应细粉总重量5~11倍的水时,使得浆料A和浆料B混合后的浆料(充填支护材料)中,具有原材料来源广、成本低、增阻快、韧性好、无害、无毒、无污染等特点。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚,下面结合具体实施例对发明进行清楚、完整的描述。
实施例1
(1)将硫铝酸盐水泥熟料60份、氟铝酸盐水泥熟料10份;铜渣粉10份、硅灰10份;助磨剂:三异丙醇胺0.5份、丙二醇0.2份、乙酸钠2份;缓凝剂:硼砂0.5份、硫酸锌1份、磷酸钠0.5份;早期剂:氯化钾0.5份、氯化钙1份、氯化锌0.3份、三氧化二铁3份;悬浮剂:甲基纤维素0.2份、羟乙基纤维素0.3份组成混合物料5公斤。用Φ500×500mm试验球磨机粉磨55分钟,得到比表面积为356m2/kg的甲料细粉,然后加入甲料细粉总重量5倍的水混合均匀,得到浆料A;
(2)将二水石膏5份、天然硬石膏50份、盐石膏5份、;生石灰25份;碱渣5份、沸腾炉渣5份;速凝剂:氢氧化铁2份、碳酸钠1份、氟化钾0.2份;增强剂:硫酸钠1份、甲酸钙0.5份;悬浮剂:羧甲基纤维素0.1份、羟乙基纤维素0.2份组成混合物料5公斤、用Φ500×500mm试验球磨机粉磨40分钟,比表面积为352m2/kg得到乙料细粉,然后加入乙料细粉总重量5倍的水混合均匀,得到浆料B;
(3)制备浆料A、浆料B的水温7℃。
(4)将浆料A和浆料B按1:1重量比混合,得到浆体后测定物理力学性能。
实施例2:
(1)将铝酸盐水泥熟料70份、氟铝酸盐水泥熟料10份;矿渣粉10份、粉煤灰7份;助磨剂:三乙醇胺0.2份、二甘醇0.3份;缓凝剂:酒石酸钾钠0.3份、木质素磺酸钠0.2份;早期剂:氯化钙1份、氯化镁0.4份、三氧化二铁0.2份;悬浮剂:甲基纤维素0.2份、羧甲基纤维素0.2份组成混合物料5公斤。用Φ500×500mm试验球磨机粉磨70分钟,得到比表面积为512m2/kg的甲料细粉,然后加入甲料细粉总重量6倍的水混合均匀,得到浆料A;
(2)将天然硬石膏60份、磷石膏5份;生石灰10份、氢氧化钙9份;电石渣5份、碳酸钙粉3份;速凝剂:碳酸钾1份、氟化钠1.5份、氟硅酸钠0.7份;增强剂:硫酸钾1份、亚硫酸钠2份、三聚磷酸钾1份;悬浮剂:羧甲基纤维素0.5份、羟丙基甲基纤维素0.3份组成混合物料5公斤、用Φ500×500mm试验球磨机粉磨45分钟,比表面积为530m2/kg得到乙料细粉,然后加入乙料细粉总重量6倍的水混合均匀,得到浆料B;
(3)制备浆料A、浆料B的水温8℃。
(4)将浆料A和浆料B按1:1重量比混合,得到浆体后测定物理力学性能。
实施例3:
(1)将铝酸盐水泥熟料65份、铁铝酸盐水泥熟料20份;钢渣粉5份、硅灰5份;助磨剂:乙二醇0.3份、丙三醇0.4份、乙酸钠1份;缓凝剂:柠檬酸钾0.5份、草酸0.1份、硫酸锌0.2份;早期剂:氯化钠1份、氯化镁1份、氯化锂0.1份;悬浮剂:羧甲基纤维素0.1份、羟乙基纤维素0.3份组成混合物料5公斤。用Φ500×500mm试验球磨机粉磨75分钟,得到比表面积为600m2/kg的甲料细粉,然后加入甲料细粉总重量11倍的水混合均匀,得到浆料A;
(2)将天然硬石膏45份、氟石膏15份;氢氧化钙20份;碱渣5份、碳酸钙粉5份;速凝剂:水泥速凝剂4份、氢氧化锂0.4份、硅酸钠2份;增强剂:硫酸铝钾2份、三聚磷酸钠1份;悬浮剂:羧甲基纤维素0.3份、羟丙基甲基纤维素0.3份组成混合物料5公斤、用Φ500×500mm试验球磨机粉磨50分钟,比表面积为593m2/kg得到乙料细粉,然后加入乙料细粉总重量11倍的水混合均匀,得到浆料B;
(3)制备浆料A、浆料B的水温8℃。
(4)将浆料A和浆料B按1:1重量比混合,得到浆体后测定物理力学性能。
对比例1:
(1)将铝酸盐水泥熟料70份、氟铝酸盐水泥熟料10份;矿渣粉10份、粉煤灰7份;缓凝剂:酒石酸钾钠0.3份、木质素磺酸钠0.2份;早期剂:氯化钙1份、氯化镁0.4份、三氧化二铁0.2份;悬浮剂:甲基纤维素0.2份、羧甲基纤维素0.2份组成混合物料5公斤。用Φ500×500mm试验球磨机粉磨70分钟,得到甲料细粉(测定甲料细粉的表面积,如表2所示),加入甲料细粉总重量6倍的水混合均匀,得到浆料A;
(2)将天然硬石膏60份、磷石膏5份;生石灰10份、氢氧化钙9份;电石渣5份、碳酸钙粉3份;速凝剂:碳酸钾1份、氟化钠1.5份、氟硅酸钠0.7份;增强剂:硫酸钾1份、亚硫酸钠2份、三聚磷酸钾1份;悬浮剂:羧甲基纤维素0.5份、羟丙基甲基纤维素0.3份组成混合物料5公斤、用Φ500×500mm试验球磨机粉磨45分钟,表面积为530m2/kg得到乙料细粉,然后加入乙料细粉总重量6倍的水混合均匀,得到浆料B;
(3)制备浆料A、浆料B的水温8℃。
(4)将浆料A和浆料B按1:1重量比混合,得到浆体后测定物理力学性能并与实施例2中得到的浆体性能进行对比,数据见表2。
对比例2:
(1)将铝酸盐水泥熟料70份、氟铝酸盐水泥熟料10份;缓凝剂:酒石酸钾钠0.3份、木质素磺酸钠0.2份;悬浮剂:甲基纤维素0.2份、羧甲基纤维素0.2份组成混合物料5公斤。用Φ500×500mm试验球磨机粉磨70分钟,得到表面积为446m2/kg的甲料细粉,然后加入甲料细粉总重量6倍的水混合均匀,得到浆料A;
(2)将天然硬石膏60份、磷石膏5份;生石灰10份、氢氧化钙9份;速凝剂:碳酸钾1份、氟化钠1.5份、氟硅酸钠0.7份;悬浮剂:羧甲基纤维素0.5份、羟丙基甲基纤维素0.3份组成混合物料5公斤、用Φ500×500mm试验球磨机粉磨45分钟,比表面积为533m2/kg得到乙料细粉,然后加入乙料细粉总重量6倍的水混合均匀,得到浆料B;
(3)制备浆料A、浆料B的水温8℃。
(4)将浆料A和浆料B按1:1重量比混合,得到浆体后测定物理力学性能并与实施例2中得到的浆体性能进行对比,数据见表3。
对比例3:
(1)将铝酸盐水泥熟料70份、氟铝酸盐水泥熟料10份;助磨剂:三乙醇胺0.2份、二甘醇0.3份;缓凝剂:酒石酸钾钠0.3份、木质素磺酸钠0.2份;早期剂:氯化钙1份、氯化镁0.4份、三氧化二铁0.2份组成混合物料5公斤。用Φ500×500mm试验球磨机粉磨70分钟,得到表面积为501m2/kg的甲料细粉,然后加入甲料细粉总重量6倍的水混合均匀,得到浆料A;
(2)将天然硬石膏60份、磷石膏5份;生石灰10份、氢氧化钙9份;速凝剂:碳酸钾1份、氟化钠1.5份、氟硅酸钠0.7份;增强剂:硫酸钾1份、亚硫酸钠2份、三聚磷酸钾1份组成混合物料5公斤、用Φ500×500mm试验球磨机粉磨45分钟,表面积为539m2/kg得到乙料细粉,然后加入乙料细粉总重量6倍的水混合均匀,得到浆料B;
(3)制备浆料A、浆料B的水温8℃。
(4)将浆料A和浆料B按1:1重量比混合,得到浆体后测定物理力学性能并与实施例2中得到的浆体性能进行对比,数据见表3。
对比例4:
(1)将铝酸盐水泥熟料70份、氟铝酸盐水泥熟料10份;矿渣粉10份、粉煤灰7份;助磨剂:三乙醇胺0.2份、二甘醇0.3份;缓凝剂:酒石酸钾钠0.3份、木质素磺酸钠0.2份;早期剂:氯化钙1份、氯化镁0.4份、三氧化二铁0.2份;悬浮剂:乙基黄原酸钾0.7份组成混合物料5公斤。用Φ500×500mm试验球磨机粉磨70分钟,得到表面积为514m2/kg的甲料细粉,然后加入甲料细粉总重量6倍的水混合均匀,得到浆料A;
(2)将天然硬石膏60份、磷石膏5份;生石灰10份、氢氧化钙9份;电石渣5份、碳酸钙粉3份;速凝剂:碳酸钾1份、氟化钠1.5份、氟硅酸钠0.7份;增强剂:硫酸钾1份、亚硫酸钠2份、三聚磷酸钾1份;可再分散乳胶粉(VAE)0.8份组成混合物料5公斤、用Φ500×500mm试验球磨机粉磨45分钟,表面积为537m2/kg得到乙料细粉,然后加入乙料细粉总重量6倍的水混合均匀,得到浆料B;
(3)制备浆料A、浆料B的水温8℃。
(4)将浆料A和浆料B按1:1重量比混合,得到浆体后测定物理力学性能并与实施例2中得到的浆体性能进行对比,数据见表3。
效果例1:
由实施例1-实施例3得到的甲料细粉、乙料细粉、以及浆体的物理性能,单轴抗压强度采用《JC/T984-2011》检测,结果如表1所示:
由表1可知,实施例1-实施例3中,分别由甲料细粉和乙料细粉使用6℃-8℃的水得到的浆料A和浆料B在混合后能够在短时间内凝固,且混合后上下层均匀度好,且1d、7d和28d的抗压强度均满足不同设计的充填体强度要求。
效果例2:
分别由对比例1和实施例2得到的甲料细粉、乙料细粉、以及浆体的物理性能对比如表2所示:
由表2 可知,当不添加助磨剂时,在相同的研磨条件下研磨相同的时间,得到的粉料的比表面积小,物料粒径大;另外,当粉料的比表面太低时,虽然由甲料细粉和乙料细粉使用6℃-8℃的水得到的浆料A和浆料B在混合后也能凝固,但是凝固时间延长,且混合不均匀,混合后的强度小。
效果例3:
分别由对比例2-对比例4、以及实施例2得到的甲料细粉、乙料细粉、以及浆体的物理性能对比如表3所示:
由表3可知,甲料细粉中缺少固体废弃物、助磨剂、早期剂,乙料细粉中缺少固体废弃物、速凝剂和增强剂后,在分别利用8℃的水混合甲料细粉和乙料细粉制备成浆料A和浆料B后,浆料A和浆料B混合后初凝时间长、强度低。另外,甲料细粉中缺少固体废弃物和悬浮剂,乙料细粉中缺少固体废弃物和悬浮剂后,在分别利用8℃的水混合甲料细粉和乙料细粉制备成浆料A和浆料B后,浆料A和浆料B混合后也初凝时间长、强度低。另外,将本申请中的甲料细粉和乙料细粉中的悬浮剂(羟乙基纤维素)替换为常用的乙基黄原酸钾后,在分别利用8℃的水混合甲料细粉和乙料细粉制备成浆料A和浆料B后,浆料A和浆料B混合后也初凝时间长、强度低。
Claims (1)
1.一种矿用低温超高结晶水速凝充填支护材料,其特征在于,所述材料由比表面积均为350~600m2/kg的甲料细粉和乙料细粉组成;
其中,所述甲料细粉由Al2O3含量>19%的水泥熟料、固体废弃物、助磨剂、缓凝剂、早期剂和悬浮剂组成的混合物料经粉磨后得到;
所述乙料细粉由石膏、石灰、固体废弃物、速凝剂、增强剂、悬浮剂组成的混合物料经粉磨后得到;
其中,在所述甲料细粉中:水泥熟料包括硫铝酸盐水泥熟料60份、氟铝酸盐水泥熟料10份;固体废弃物包括铜渣粉10份、硅灰10份;助磨剂包括三异丙醇胺0.5份、丙二醇0.2份、乙酸钠2份;缓凝剂包括硼砂0.5份、硫酸锌1份、磷酸钠0.5份;早期剂包括氯化钾0.5份、氯化钙1份、氯化锌0.3份、三氧化二铁3份;悬浮剂包括甲基纤维素0.2份、羟乙基纤维素0.3份;
在所述乙料细粉中:石膏包括二水石膏5份、天然硬石膏50份、盐石膏5份;石灰包括生石灰25份;固体废弃物包括碱渣5份、沸腾炉渣5份;速凝剂包括氢氧化铁2份、碳酸钠1份、氟化钾0.2份;增强剂包括硫酸钠1份、甲酸钙0.5份;悬浮剂包括羧甲基纤维素0.1份、羟乙基纤维素0.2份;
或者,
在所述甲料细粉中:水泥熟料包括铝酸盐水泥熟料70份、氟铝酸盐水泥熟料10份;固体废弃物包括矿渣粉10份、粉煤灰7份;助磨剂包括三乙醇胺0.2份、二甘醇0.3份;缓凝剂包括酒石酸钾钠0.3份、木质素磺酸钠0.2份;早期剂包括氯化钙1份、氯化镁0.4份、三氧化二铁0.2份;悬浮剂包括甲基纤维素0.2份、羧甲基纤维素0.2份;
在所述乙料细粉中:石膏包括天然硬石膏60份、磷石膏5份;石灰包括生石灰10份、氢氧化钙9份;固体废弃物包括电石渣5份、碳酸钙粉3份;速凝剂包括碳酸钾1份、氟化钠1.5份、氟硅酸钠0.7份;增强剂包括硫酸钾1份、亚硫酸钠2份、三聚磷酸钾1份;悬浮剂包括羧甲基纤维素0.5份、羟丙基甲基纤维素0.3份;
或者,
在所述甲料细粉中:
水泥熟料包括铝酸盐水泥熟料65份、铁铝酸盐水泥熟料20份;固体废弃物包括钢渣粉5份、硅灰5份;助磨剂包括乙二醇0.3份、丙三醇0.4份、乙酸钠1份;缓凝剂包括柠檬酸钾0.5份、草酸0.1份、硫酸锌0.2份;早期剂包括氯化钠1份、氯化镁1份、氯化锂0.1份;悬浮剂包括羧甲基纤维素0.1份、羟乙基纤维素0.3份;
在所述乙料细粉中:石膏包括天然硬石膏45份、氟石膏15份;石灰包括氢氧化钙20份;固体废弃物包括碱渣5份、碳酸钙粉5份;速凝剂包括水泥速凝剂4份、氢氧化锂0.4份、硅酸钠2份;增强剂包括硫酸铝钾2份、三聚磷酸钠1份;悬浮剂包括羧甲基纤维素0.3份、羟丙基甲基纤维素0.3份;
矿用低温超高结晶水速凝充填支护材料的制备方法包括以下步骤:
(1)将水泥熟料、固体废弃物、助磨剂、缓凝剂、早期剂和悬浮剂组成的混合物料粉磨至比表面积为350~600m2/kg得到甲料细粉,然后加入甲料细粉总重量1~11倍、且水温大于6℃的水混合均匀,得到浆料A;
(2)将石膏、石灰、固体废弃物、速凝剂、增强剂、悬浮剂组成的混合物料粉磨至比表面积为350~600m2/kg得到乙料细粉,然后加入乙料细粉总重量1~11倍、且水温大于6℃的水混合均匀水混合均匀,得到浆料B;
(3)将浆料A和浆料B按1:(0.8~1.2)重量比混合,所得浆料凝结时间为5~45分钟。
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