CN108975820A - A kind of foam wall body material and preparation method thereof - Google Patents
A kind of foam wall body material and preparation method thereof Download PDFInfo
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- CN108975820A CN108975820A CN201810979613.2A CN201810979613A CN108975820A CN 108975820 A CN108975820 A CN 108975820A CN 201810979613 A CN201810979613 A CN 201810979613A CN 108975820 A CN108975820 A CN 108975820A
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- 239000000463 material Substances 0.000 title claims abstract description 88
- 239000006260 foam Substances 0.000 title claims abstract description 62
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 239000010936 titanium Substances 0.000 claims abstract description 79
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 79
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 78
- 238000000605 extraction Methods 0.000 claims abstract description 61
- 238000000034 method Methods 0.000 claims abstract description 29
- 239000000203 mixture Substances 0.000 claims abstract description 19
- 239000004088 foaming agent Substances 0.000 claims abstract description 16
- 239000012744 reinforcing agent Substances 0.000 claims abstract description 13
- 239000011230 binding agent Substances 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 6
- 238000012423 maintenance Methods 0.000 claims abstract 5
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical group [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 35
- 238000005187 foaming Methods 0.000 claims description 29
- 239000000292 calcium oxide Substances 0.000 claims description 19
- 235000012255 calcium oxide Nutrition 0.000 claims description 19
- 229910052602 gypsum Inorganic materials 0.000 claims description 17
- 239000010440 gypsum Substances 0.000 claims description 17
- 229910052782 aluminium Inorganic materials 0.000 claims description 13
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 13
- 239000011398 Portland cement Substances 0.000 claims description 6
- 239000004411 aluminium Substances 0.000 claims 1
- 239000006071 cream Substances 0.000 claims 1
- 239000002994 raw material Substances 0.000 abstract description 9
- 238000004134 energy conservation Methods 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 239000010881 fly ash Substances 0.000 abstract description 3
- 235000013312 flour Nutrition 0.000 abstract 1
- 239000002002 slurry Substances 0.000 description 20
- 239000012190 activator Substances 0.000 description 11
- 239000000843 powder Substances 0.000 description 11
- 229910052751 metal Inorganic materials 0.000 description 10
- 239000002184 metal Substances 0.000 description 10
- 239000002245 particle Substances 0.000 description 10
- 239000004568 cement Substances 0.000 description 9
- 238000002156 mixing Methods 0.000 description 9
- 239000002893 slag Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 description 4
- AKEJUJNQAAGONA-UHFFFAOYSA-N sulfur trioxide Chemical compound O=S(=O)=O AKEJUJNQAAGONA-UHFFFAOYSA-N 0.000 description 4
- 238000000498 ball milling Methods 0.000 description 3
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 3
- 239000006261 foam material Substances 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 2
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 239000000395 magnesium oxide Substances 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 239000004408 titanium dioxide Substances 0.000 description 2
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 description 2
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- -1 calcium-silicon-aluminum Chemical compound 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910001629 magnesium chloride Inorganic materials 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 150000003608 titanium Chemical class 0.000 description 1
- 210000004127 vitreous body Anatomy 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
- C04B28/02—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
- C04B28/04—Portland 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
-
- 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
Landscapes
- 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)
- Porous Artificial Stone Or Porous Ceramic Products (AREA)
Abstract
Description
技术领域technical field
本发明涉及墙体材料技术领域，尤其涉及一种泡沫墙体材料及其制备方法。The invention relates to the technical field of wall materials, in particular to a foam wall material and a preparation method thereof.
背景技术Background technique
攀钢每年产生含钛高炉渣700万吨以上，目前正在开展含钛高炉渣提钛工艺研究，已经建成了示范线，届时有大量提钛尾渣产生，必须要走资源化利用途径，才能实现整个高炉渣提钛工艺全流程绿色化、清洁化发展模式。Panzhihua Iron and Steel produces more than 7 million tons of titanium-containing blast furnace slag every year. Currently, it is conducting research on the titanium extraction process from titanium-containing blast furnace slag. A demonstration line has been built. At that time, a large amount of titanium tailings will be produced. It must be realized through resource utilization. The entire blast furnace slag titanium extraction process is a green and clean development model.
如何实现提钛尾渣的合理利用成为本领域技术人员研究的热点。How to realize the reasonable utilization of titanium extraction tailings has become a research hotspot for those skilled in the art.
发明内容Contents of the invention
有鉴于此，本发明的目的在于提供一种泡沫墙体材料及其制备方法，本发明提供的方法采用提钛尾渣为原料制备泡沫墙体材料，实现了提钛尾渣的合理利用。In view of this, the purpose of the present invention is to provide a foam wall material and its preparation method. The method provided by the invention uses the tailings from titanium extraction as a raw material to prepare the foam wall material, realizing the rational utilization of the tailings from titanium extraction.
本发明提供了一种泡沫墙体材料的制备方法，包括：The invention provides a method for preparing a foam wall material, comprising:
将提钛尾渣、粘结剂、激发剂和增强剂混合，得到干混料；Mixing the titanium extraction tailings, binder, activator and reinforcing agent to obtain a dry blend;
将所述干混料和水混合，得到泥浆；mixing the dry mix with water to obtain a slurry;
将所述泥浆和发泡剂混合进行发泡，得到发泡材料；mixing the mud and a foaming agent for foaming to obtain a foamed material;
将所述发泡材料进行养护，得到泡沫墙体材料。The foamed material is cured to obtain a foamed wall material.
经过发明人的大量研究发现，提钛尾渣具有较好的水化活性，同时其中含有氯离子形成的氯化物(如氯化钙、氯化镁)等早强剂成分，本发明采用提钛尾渣并通过适宜的原料配比和工艺，制备得到泡沫墙体材料。本发明制备得到的泡沫墙体材料强度达到5.0MPa以上，体积密度在0.725g/cm3以下，满足相关标准要求。而且，与普通硅质泡沫墙体材料相比，现有技术中的泡沫墙体材料以硅质材料如石粉、粉煤灰为主要原料，需要进行蒸压养护才能形成具有较高强度的泡沫材料，而本发明中采用的提钛尾渣为钙硅铝质材料，充分利用提钛尾渣的火山灰活性，不需要蒸压养护处理，本发明提供的泡沫墙体材料的制备方法综合成本低，符合当前节能环保政策。After a lot of research by the inventors, it has been found that the titanium extraction tailings have good hydration activity, and at the same time it contains chloride (such as calcium chloride, magnesium chloride) and other early strength agent components formed by chloride ions. The present invention adopts the titanium extraction tailings And the foam wall material is prepared through suitable raw material ratio and process. The strength of the foam wall material prepared by the invention reaches more than 5.0 MPa, and the bulk density is less than 0.725 g/cm 3 , meeting the requirements of relevant standards. Moreover, compared with ordinary siliceous foam wall materials, the foam wall materials in the prior art use siliceous materials such as stone powder and fly ash as the main raw materials, and autoclaved curing is required to form foam materials with higher strength. , while the titanium extraction tailings used in the present invention are calcium-silicon-aluminum materials, fully utilize the pozzolanic activity of the titanium extraction tailings, and do not need autoclaved curing treatment, the preparation method of the foam wall material provided by the present invention has low overall cost, Comply with the current energy conservation and environmental protection policy.
在本发明中，所述提钛尾渣为含钛高炉渣高温碳化-低温氯化提钛后的副产物。在本发明中，所述提钛尾渣优选为细粉状提钛尾渣；所述提钛尾渣的粒度优选为80～400目，更优选为100～350目，更优选为150～300目，最优选为200～250目。In the present invention, the titanium-extracting tailings are by-products of titanium-containing blast furnace slag high-temperature carbonization-low-temperature chlorination for titanium extraction. In the present invention, the titanium extraction tailings are preferably fine powdered titanium extraction tailings; the particle size of the titanium extraction tailings is preferably 80-400 mesh, more preferably 100-350 mesh, more preferably 150-300 mesh mesh, most preferably 200-250 mesh.
在本发明中，所述提钛尾渣优选包括：In the present invention, the titanium extraction tailings preferably include:
氧化钙、二氧化硅、二氧化钛、三氧化二铝、氧化镁和氯离子。Calcium Oxide, Silica, Titanium Dioxide, Aluminum Oxide, Magnesium Oxide and Chloride Ion.
在本发明中，所述氧化钙在提钛尾渣中的质量含量优选为25～30％，更优选为26～29％，最优选为27～28％。In the present invention, the mass content of the calcium oxide in the titanium extraction tailings is preferably 25-30%, more preferably 26-29%, and most preferably 27-28%.
在本发明中，所述二氧化硅在提钛尾渣中的质量含量优选为20～25％，更优选为21～24％，最优选为22～23％。In the present invention, the mass content of the silica in the titanium extraction tailings is preferably 20-25%, more preferably 21-24%, and most preferably 22-23%.
在本发明中，所述二氧化钛在提钛尾渣中的质量含量优选为5～10％，更优选为6～9％，最优选为7～8％。In the present invention, the mass content of the titanium dioxide in the titanium extraction tailings is preferably 5-10%, more preferably 6-9%, most preferably 7-8%.
在本发明中，所述三氧化二铝在提钛尾渣中的质量含量优选为10～20％，更优选为12～15％，最优选为13～14％。In the present invention, the mass content of the aluminum oxide in the titanium extraction tailings is preferably 10-20%, more preferably 12-15%, and most preferably 13-14%.
在本发明中，所述氧化镁在提钛尾渣中的质量含量优选为5～10％，更优选为6～9％，最优选为7～8％。In the present invention, the mass content of the magnesium oxide in the titanium extraction tailings is preferably 5-10%, more preferably 6-9%, most preferably 7-8%.
在本发明中，所述氯离子在提钛尾渣中的质量含量优选为2～4％，更优选为2.5～3.5％，最优选为3％。In the present invention, the mass content of the chloride ion in the titanium extraction tailings is preferably 2-4%, more preferably 2.5-3.5%, and most preferably 3%.
在本发明中，所述提钛尾渣优选还包括：In the present invention, the titanium extraction tailings preferably also include:
氧化锰、三氧化硫、碳化钛、氮化钛、氟化物和硫化物。Manganese oxide, sulfur trioxide, titanium carbide, titanium nitride, fluoride and sulfide.
在本发明中，所述氧化锰在提钛尾渣中的质量含量优选为0.5～1％，更优选为0.6～0.9％，最优选为0.7～0.8％。In the present invention, the mass content of the manganese oxide in the titanium extraction tailings is preferably 0.5-1%, more preferably 0.6-0.9%, and most preferably 0.7-0.8%.
在本发明中，所述三氧化硫在提钛尾渣中的质量含量优选为0.5～1.5％，更优选为0.8～1.2％，最优选为1％。In the present invention, the mass content of the sulfur trioxide in the titanium extraction tailings is preferably 0.5-1.5%, more preferably 0.8-1.2%, most preferably 1%.
在本发明中，所述碳化钛在提钛尾渣中的质量含量优选为2.5～3.5％，更优选为2.8～3.2％，最优选为3％。In the present invention, the mass content of the titanium carbide in the titanium extraction tailings is preferably 2.5-3.5%, more preferably 2.8-3.2%, most preferably 3%.
在本发明中，所述氮化钛在提钛尾渣中的质量含量优选为0.5～1.5％，更优选为0.8～1.2％，最优选为1％。In the present invention, the mass content of the titanium nitride in the titanium extraction tailings is preferably 0.5-1.5%, more preferably 0.8-1.2%, most preferably 1%.
在本发明中，所述氟化物在提钛尾渣中的质量含量优选为0.3～0.7％，更优选为0.4～0.6％，最优选为0.5％。In the present invention, the mass content of the fluoride in the titanium extraction tailings is preferably 0.3-0.7%, more preferably 0.4-0.6%, most preferably 0.5%.
在本发明中，所述硫化物在提钛尾渣中的质量含量优选为0.2～0.6％，更优选为0.3～0.5％，最优选为0.4％。In the present invention, the mass content of the sulfide in the titanium extraction tailings is preferably 0.2-0.6%, more preferably 0.3-0.5%, most preferably 0.4%.
本发明优选对所述提钛尾渣进行球磨处理，优选使提钛尾渣的比表面积大于400m2/kg，更优选为405～460m2/kg，更优选为410～450m2/kg，最优选为420～440m2/kg。本发明制备泡沫墙体材料采用提钛尾渣，提钛尾渣中玻璃体含量90％以上，具有较高的火山活性，但是提钛尾渣的活性受到比表面积的影响，比表面积越大，活性越高，制备得到的泡沫墙体材料强度越高，但是比表面积越大消耗的磨制能量越高，本发明优选采用上述比表面积的提钛尾渣，这种提钛尾渣在能够获得良好的泡沫墙体材料的同时经济性较好。In the present invention, the titanium extraction tailings are preferably subjected to ball milling treatment, and the specific surface area of the titanium extraction tailings is preferably greater than 400m 2 /kg, more preferably 405-460m 2 /kg, more preferably 410-450m 2 /kg, and most preferably Preferably it is 420 to 440 m 2 /kg. The preparation of the foam wall material in the present invention adopts titanium-extracted tailings. The content of vitreous body in the titanium-extracted tailings is more than 90%, which has high volcanic activity. However, the activity of the titanium-extracted tailings is affected by the specific surface area. The larger the specific surface area, the higher the activity. The higher the strength, the higher the strength of the prepared foam wall material, but the greater the specific surface area, the higher the grinding energy consumed. The present invention preferably adopts the titanium extraction tailings with the above specific surface area, and this titanium extraction tailings can be obtained in good condition. The foam wall material is economical at the same time.
在本发明中，所述粘结剂优选为硅酸盐水泥，如可以采用425硅酸盐水泥。本发明针对提钛尾渣制备泡沫墙体材料优选采用硅酸盐水泥作为粘结剂，本发明采用硅酸盐水泥作为粘结剂能够使制备得到的泡沫墙体材料具有更好的力学性能以及体积密度。In the present invention, the binder is preferably Portland cement, such as 425 Portland cement. In the present invention, Portland cement is preferably used as a binder for preparing foam wall materials from titanium tailings. The present invention uses Portland cement as a binder to make the prepared foam wall materials have better mechanical properties and bulk density.
在本发明中，所述激发剂优选为生石灰，所述激发剂作为发泡激发剂。在本发明中，所述激发剂中氧化钙的质量含量优选大于80％，更优选为81～95％，更优选为85～90％，最优选为87～88％。在本发明中，所述激发剂的粒度优选为250～300目，更优选为260～290目，最优选为270～280目。本发明针对采用提钛尾渣制备泡沫墙体材料优选采用生石灰作为激发剂，本发明采用生石灰作为激发剂能够使制备得到的泡沫墙体材料具有更好的力学性能以及体积密度。In the present invention, the activator is preferably quicklime, and the activator is used as a foaming activator. In the present invention, the mass content of calcium oxide in the activator is preferably greater than 80%, more preferably 81-95%, more preferably 85-90%, most preferably 87-88%. In the present invention, the particle size of the activator is preferably 250-300 mesh, more preferably 260-290 mesh, most preferably 270-280 mesh. In the present invention, quicklime is preferably used as the activator for preparing the foam wall material by using titanium extraction tailings. The use of quicklime as the activator in the present invention can make the prepared foam wall material have better mechanical properties and bulk density.
在本发明中，所述增强剂优选为石膏；所述石膏优选为脱硫石膏或钛石膏。在本发明中，所述增强剂的粒度优选为250～300目，更优选为260～290目，最优选为270～280目。本发明针对采用提钛尾渣制备泡沫墙体材料，优选采用脱硫石膏作为增强剂，本发明采用脱硫石膏作为增强剂能够使制备得到的泡沫墙体材料具有更好的力学性能以及体积密度。In the present invention, the reinforcing agent is preferably gypsum; the gypsum is preferably desulfurized gypsum or titanium gypsum. In the present invention, the particle size of the reinforcing agent is preferably 250-300 mesh, more preferably 260-290 mesh, most preferably 270-280 mesh. The present invention aims at preparing foam wall materials by using titanium extraction tailings, preferably using desulfurized gypsum as a reinforcing agent, and using desulfurized gypsum as a reinforcing agent can make the prepared foam wall materials have better mechanical properties and volume density.
在本发明中，所述发泡剂优选为金属铝膏。本发明针对采用提钛尾渣制备泡沫墙体材料，优选采用金属铝膏作为发泡剂，本发明采用金属铝膏作为发泡剂能够使制备得到的泡沫墙体材料具有更好的力学性能以及体积密度。In the present invention, the foaming agent is preferably metal aluminum paste. The present invention aims at preparing the foam wall material by extracting titanium tailings, preferably using metal aluminum paste as the foaming agent, and the present invention uses the metal aluminum paste as the foaming agent to make the prepared foam wall material have better mechanical properties and bulk density.
在本发明中，所述提钛尾渣、粘结剂、激发剂和增强剂的质量比优选为(60～80):(10～30):(2～5)：(2～5)，更优选为(65～75):(15～25):(3～4)：(3～4)，最优选为(68～72):(18～22):(3.4～3.6)：(3.4～3.6)。在本发明中，所述发泡剂优选为上述提钛尾渣、粘结剂、激发剂和增强剂总质量的0.05～0.20％，更优选为0.1～0.18％，最优选为0.14～0.16％。在本发明中，所述泥浆中水的质量含量优选为35～45％，更优选为38～42％，最优选为40％。本发明优选采用上述用量的各原料的用量比例制备泡沫墙体材料，本发明通过合理控制各原料的用量比例能够使制备得到的泡沫墙体材料具有更好的力学性能以及体积密度。In the present invention, the mass ratio of the titanium extraction tailings, binder, activator and reinforcing agent is preferably (60-80):(10-30):(2-5):(2-5), More preferably (65～75):(15～25):(3～4):(3～4), most preferably (68～72):(18～22):(3.4～3.6):(3.4 ~3.6). In the present invention, the foaming agent is preferably 0.05-0.20%, more preferably 0.1-0.18%, and most preferably 0.14-0.16% of the total mass of the above-mentioned titanium extraction tailings, binder, activator and reinforcing agent . In the present invention, the mass content of water in the mud is preferably 35-45%, more preferably 38-42%, most preferably 40%. The present invention preferably adopts the ratios of the above-mentioned raw materials to prepare foam wall materials, and the present invention can make the prepared foam wall materials have better mechanical properties and bulk density by rationally controlling the ratios of each raw material.
在本发明中，所述发泡的时间优选为1～3小时，更优选为1.5～2.5小时，最优选为2小时。在本发明中，所述发泡的方法优选为将所述泥浆和发泡剂混合后在发泡槽中静置，所述静置的时间包括发泡时间以及强化时间，所述发泡时间与上述技术方案所述发泡时间一致，所述强化时间优选为1～3小时，更优选为1.5～2.5小时，最优选为2小时，所述静置的总时间优选为2～6小时，更优选为3～5小时，最优选为4小时，使得到的发泡材料具有初始强度。在本发明中，静置发泡完成后本发明优选对所述发泡材料进行切割然后进行养护。In the present invention, the foaming time is preferably 1-3 hours, more preferably 1.5-2.5 hours, most preferably 2 hours. In the present invention, the foaming method is preferably to mix the mud and the foaming agent and leave it in a foaming tank, the standing time includes foaming time and strengthening time, and the foaming time Consistent with the foaming time described in the above technical solution, the strengthening time is preferably 1 to 3 hours, more preferably 1.5 to 2.5 hours, most preferably 2 hours, and the total standing time is preferably 2 to 6 hours, It is more preferably 3-5 hours, most preferably 4 hours, so that the obtained foam material has initial strength. In the present invention, after static foaming is completed, the foaming material is preferably cut and then cured.
在本发明中，所述养护的温度优选为20～30℃，更优选为22～28℃，最优选为24～26℃；所述养护的湿度优选＞80％，更优选为81～95％，更优选为85～90％，最优选为87～88％。在本发明中，所述养护的时间优选为5～10天，更优选为6～9天，最优选为7～8天。In the present invention, the curing temperature is preferably 20-30°C, more preferably 22-28°C, most preferably 24-26°C; the curing humidity is preferably >80%, more preferably 81-95% , more preferably 85-90%, most preferably 87-88%. In the present invention, the curing time is preferably 5-10 days, more preferably 6-9 days, most preferably 7-8 days.
在本发明中，所述养护完成后优选将养护后的产品进行自然干燥，得到泡沫墙体材料。In the present invention, after the curing is completed, the cured product is preferably dried naturally to obtain a foam wall material.
本发明实施例提供的制备泡沫墙体材料的方法工艺流程如图1所示，包括：The process flow of the method for preparing the foam wall material provided by the embodiment of the present invention is shown in Figure 1, including:
将提钛尾渣进行粉磨，得到提钛尾渣细料；Grinding the titanium extraction tailings to obtain fine titanium extraction tailings;
将生石灰进行粉磨，得到生石灰细粉；Grinding quicklime to obtain quicklime fine powder;
将提钛尾渣细料、生石灰细粉、石膏和水泥混合后制浆；Mix the fine tailings of titanium extraction, quicklime fine powder, gypsum and cement to make slurry;
将制得的浆料和铝膏混合后发泡静置，得到发泡材料；foaming and standing after mixing the prepared slurry and aluminum paste to obtain a foaming material;
将发泡材料进行高湿养护后自然干燥，得到泡沫墙体材料。The foamed material is cured under high humidity and then dried naturally to obtain the foamed wall material.
本发明提供的泡沫墙体材料的制备方法更优选为：The preparation method of the foam wall material provided by the invention is more preferably:
将提钛尾渣采用球磨工艺粉磨处理，细粉比表面积大于400m2/kg，同时将生石灰、石膏采用球磨工艺粉磨处理，获得粒度在250～300目的细粉；将提钛尾渣、生石灰、石膏和水泥按照上述比例混合均匀，然后加水搅拌成泥浆状(具有较好的流动度)，按照上述比例添加发泡剂金属铝膏搅拌均匀，静置在发泡槽中进行发泡，4小时后发泡完成，具有初始强度，采用切割工具进行切割，然后在室温湿度80％以上的条件下养护7天，自然干燥，得到泡沫墙体材料。The titanium extraction tailings are ground by ball milling process, and the specific surface area of the fine powder is greater than 400m 2 /kg. At the same time, quicklime and gypsum are ground by ball milling process to obtain fine powder with a particle size of 250-300 mesh; the titanium extraction tailings, Quicklime, gypsum and cement are mixed evenly according to the above ratio, then add water and stir to form a slurry (with better fluidity), add foaming agent metal aluminum paste according to the above ratio, stir evenly, and place it in the foaming tank for foaming. After 4 hours, the foaming is completed and has initial strength. It is cut with a cutting tool, then cured for 7 days at room temperature and humidity above 80%, and dried naturally to obtain a foam wall material.
本发明还提供了一种上述技术方案所述的方法制备得到的泡沫墙体材料。在本发明中，所述泡沫墙体材料的制备方法与上述技术方案所述的方法一致，在此不再赘述。与现有的泡沫墙体材料相比，本发明提供的泡沫墙体材料具有下述优点：原料来源广泛、廉价易得；不需要蒸压养护处理，生产工艺简单，生产成本较低，能降低成本投入；能够实现提钛尾渣资源的高效综合利用，符合当前循环经济政策要求。The present invention also provides a foam wall material prepared by the method described in the above technical solution. In the present invention, the preparation method of the foam wall material is consistent with the method described in the above technical solution, and will not be repeated here. Compared with the existing foam wall materials, the foam wall materials provided by the present invention have the following advantages: wide sources of raw materials, cheap and easy to obtain; no autoclave curing treatment, simple production process, low production cost, and can reduce Cost input; it can realize the efficient and comprehensive utilization of titanium tailings resources, which is in line with the current circular economy policy requirements.
含钛高炉渣提钛工艺每年副产大量提钛尾渣，综合利用难度较大，必须要走多途径综合利用模式。本发明利用提钛尾渣制备泡沫墙体材料是实现提钛尾渣多途径利用的重要途径之一，将本发明的方法进行推广应用，预计每年可以消耗提钛尾渣20万吨以上。而且，与传统的墙体材料相比，本发明制备的泡沫墙体材料属于绿色建材，不消耗黏土、页岩等资源，受到国家政策的支持。将本发明提供的制备泡沫墙体材料的方法进行推广和应用，每年可消耗提钛尾渣20万吨以上，产生经济效益500万元以上。The process of extracting titanium from titanium-containing blast furnace slag produces a large amount of titanium tailings as a by-product every year. It is difficult to comprehensively utilize it, and it is necessary to adopt a multi-channel comprehensive utilization model. The present invention utilizes titanium extraction tailings to prepare foam wall materials, which is one of the important ways to realize multi-channel utilization of titanium extraction tailings. By popularizing and applying the method of the present invention, it is estimated that more than 200,000 tons of titanium extraction tailings can be consumed every year. Moreover, compared with traditional wall materials, the foam wall material prepared by the present invention belongs to green building materials, does not consume resources such as clay and shale, and is supported by national policies. By popularizing and applying the method for preparing foam wall materials provided by the present invention, more than 200,000 tons of titanium tailings can be consumed every year, and economic benefits of more than 5 million yuan can be generated.
本发明提供了一种以提钛尾渣为主要原料的泡沫墙体材料，所用的提钛尾渣为含钛高炉渣提钛后的尾渣，通过对提钛尾渣进行球磨处理，添加生石灰、石膏作为辅助材料，混合均匀后加水搅拌成泥浆状，添加铝膏作为发泡剂，在发泡槽中静置发泡，4小时切割，坯体在室温湿度大于80％的条件下养护7天，自然干燥。本发明制备的泡沫墙体材料的强度达到5.0MPa以上，体积密度在0.725g/cm3以下。The invention provides a foam wall material with titanium extraction tailings as the main raw material. The titanium extraction tailings used are the tailings after titanium extraction from titanium-containing blast furnace slag. The titanium extraction tailings are ball milled and quicklime is added. 1. Gypsum is used as an auxiliary material. After mixing evenly, add water and stir to form a slurry. Add aluminum paste as a foaming agent, leave it to foam in a foaming tank, cut for 4 hours, and maintain the green body at room temperature and humidity greater than 80%. 7 days, dry naturally. The strength of the foam wall material prepared by the invention reaches above 5.0 MPa, and the bulk density is below 0.725 g/cm 3 .
附图说明Description of drawings
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据提供的附图获得其他的附图。In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only It is an embodiment of the present invention, and those skilled in the art can also obtain other drawings according to the provided drawings without creative work.
图1为本发明实施例提供的泡沫墙体材料制备方法的工艺流程图。Fig. 1 is a process flow diagram of a method for preparing a foam wall material provided by an embodiment of the present invention.
具体实施方式Detailed ways
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
本发明以下实施例所用的提钛尾渣的成分包括：The composition of the titanium tailings used in the following examples of the present invention includes:
所用的水泥为425号硅酸盐水泥。The cement used is No. 425 Portland cement.
实施例1Example 1
将比表面积为405m2/kg的提钛尾渣细粉75重量份、水泥20重量份、生石灰(粒度为250目)3重量份和脱硫石膏(粒度为250目)2重量份四种粉料干混均匀，得到干混料；将所述干混料和水混合制备浆料(具有较好的流动性)，浆料中水分的质量含量为38％；将浆料静置10min，然后向浆料中添加发泡剂金属铝膏，金属铝膏的添加量为上述提钛尾渣、水泥、生石灰和脱硫石膏总质量的0.08％；将混合均匀的物料倒入发泡槽中静置，浆料发泡明显，2小时后发泡完成，4小时后具有一定的初始强度，将得到的发泡材料切成所需的尺寸放置在养护室中，在室温湿度80％的条件下养护7天，取出后自然干燥，得到提钛尾渣泡沫墙体材料。75 parts by weight of titanium extraction tailings fine powder with a specific surface area of 405m2 /kg, 20 parts by weight of cement, 3 parts by weight of quicklime (with a particle size of 250 mesh) and 2 parts by weight of desulfurized gypsum (with a particle size of 250 mesh) Dry mix evenly, obtain dry mix; Said dry mix and water are mixed to prepare slurry (has good fluidity), and the mass content of moisture in the slurry is 38%; The slurry is left standstill 10min, then to Add a foaming agent metal aluminum paste to the slurry, and the amount of the metal aluminum paste is 0.08% of the total mass of the above-mentioned titanium extraction tailings, cement, quicklime and desulfurized gypsum; pour the uniformly mixed materials into the foaming tank and let it stand. The foaming of the slurry is obvious, and the foaming is completed after 2 hours, and has a certain initial strength after 4 hours. Cut the obtained foamed material into the required size and place it in the curing room for curing under the condition of room temperature and humidity of 80%. After 7 days, it was taken out and dried naturally to obtain the titanium tailings foam wall material.
采用定型隔热耐火制品常温耐压强度检测方法(GB/T3997.2-1998)，测试本发明实施例1制备得到的泡沫墙体材料的强度，检测结果为，本发明实施例1制备得到的泡沫墙体材料的强度为6.2MPa。Using the normal temperature compressive strength test method (GB/T3997.2-1998) of shaped heat insulation refractory products, test the strength of the foam wall material prepared in Example 1 of the present invention, and the test result is that the foam wall material prepared in Example 1 of the present invention is The strength of the foam wall material is 6.2MPa.
采用定型隔热耐火制品体积密度和真气孔率试验方法(GB/T2998-2001)，测试本发明实施例1制备得到的泡沫墙体材料的体积密度，检测结果为，本发明实施例1制备得到的泡沫墙体材料的体积密度为0.72g/cm3。The bulk density and true porosity test method (GB/T2998-2001) of shaped heat-insulating refractory products was used to test the bulk density of the foam wall material prepared in Example 1 of the present invention. The test result was that it was prepared in Example 1 of the present invention. The bulk density of the foam wall material is 0.72g/cm 3 .
实施例2Example 2
将比表面积为455m2/kg的提钛尾渣细粉60重量份、水泥30重量份、生石灰(粒度为300目)5重量份和脱硫石膏(粒度为300目)5重量份四种粉料干混均匀，得到干混料；将所述干混料和水混合制备浆料(具有较好的流动性)，浆料中水分的质量含量为43％；将浆料静置10min，然后向浆料中添加发泡剂金属铝膏，金属铝膏的添加量为上述提钛尾渣、水泥、生石灰和脱硫石膏总质量的0.2％；将混合均匀的物料倒入发泡槽中静置，浆料发泡明显，2小时后发泡完成，4小时后具有一定的初始强度，将得到的发泡材料切成所需的尺寸放置在养护室中，在室温湿度90％的条件下养护7天，取出后自然干燥，得到提钛尾渣泡沫墙体材料。60 parts by weight of titanium extraction tailings fine powder with a specific surface area of 455m2 /kg, 30 parts by weight of cement, 5 parts by weight of quicklime (with a particle size of 300 mesh) and 5 parts by weight of desulfurized gypsum (with a particle size of 300 mesh) are four kinds of powders Dry mix evenly, obtain dry mix; Said dry mix and water are mixed and prepare slurry (has good fluidity), and the mass content of moisture in the slurry is 43%; The slurry is left standstill 10min, then to Add foaming agent metal aluminum paste to the slurry, the amount of metal aluminum paste added is 0.2% of the total mass of the above-mentioned titanium extraction tailings, cement, quicklime and desulfurized gypsum; pour the uniformly mixed material into the foaming tank and let it stand. The foaming of the slurry is obvious, and the foaming is completed after 2 hours, and has a certain initial strength after 4 hours. Cut the obtained foamed material into the required size and place it in the curing room for curing under the condition of room temperature and humidity of 90%. After 7 days, it was taken out and dried naturally to obtain the titanium tailings foam wall material.
按照实施例1所述的方法，检测得到本发明实施例2制备的泡沫墙体材料的强度为5.0MPa，体积密度为0.62g/cm3。According to the method described in Example 1, the foam wall material prepared in Example 2 of the present invention has a strength of 5.0 MPa and a bulk density of 0.62 g/cm 3 .
实施例3Example 3
将比表面积为455m2/kg的提钛尾渣细粉80重量份、水泥15重量份、生石灰(粒度为280目)4重量份和脱硫石膏(粒度为280目)1重量份四种粉料干混均匀，得到干混料；将所述干混料和水混合制备浆料(具有较好的流动性)，浆料中水分的质量含量为41％；将浆料静置10min，然后向浆料中添加发泡剂金属铝膏，金属铝膏的添加量为上述提钛尾渣、水泥、生石灰和脱硫石膏总质量的0.15％；将混合均匀的物料倒入发泡槽中静置，浆料发泡明显，2小时后发泡完成，4小时后具有一定的初始强度，将得到的发泡材料切成所需的尺寸放置在养护室中，在室温湿度90％的条件下养护7天，取出后自然干燥，得到提钛尾渣泡沫墙体材料。80 parts by weight of titanium extraction tailings fine powder with a specific surface area of 455m 2 /kg, 15 parts by weight of cement, 4 parts by weight of quicklime (with a particle size of 280 mesh) and 1 part by weight of desulfurized gypsum (with a particle size of 280 mesh) are four kinds of powders Dry mix evenly, obtain dry mix; Said dry mix and water are mixed to prepare slurry (has good fluidity), and the mass content of moisture in the slurry is 41%; The slurry is left standstill 10min, then to Add a foaming agent metal aluminum paste to the slurry, and the amount of the metal aluminum paste is 0.15% of the total mass of the above-mentioned titanium extraction tailings, cement, quicklime and desulfurized gypsum; pour the uniformly mixed material into the foaming tank and let it stand. The foaming of the slurry is obvious, and the foaming is completed after 2 hours, and has a certain initial strength after 4 hours. Cut the obtained foamed material into the required size and place it in the curing room for curing under the condition of room temperature and humidity of 90%. After 7 days, it was taken out and dried naturally to obtain the titanium tailings foam wall material.
按照实施例1所述的方法，检测得到本发明实施例3制备的泡沫墙体材料的强度为5.7MPa，体积密度为0.69g/cm3。According to the method described in Example 1, it is detected that the strength of the foam wall material prepared in Example 3 of the present invention is 5.7 MPa, and the bulk density is 0.69 g/cm3.
由以上实施例可知，本发明提供了一种泡沫墙体材料的制备方法，包括：将提钛尾渣、粘结剂、激发剂和增强剂混合，得到干混料；将所述干混料和水混合，得到泥浆；将所述泥浆和发泡剂混合进行发泡，得到发泡材料；将所述发泡材料进行养护，得到泡沫墙体材料。现有技术中的泡沫墙体材料以硅质材料如石粉、粉煤灰为主要原料，需要进行蒸压养护才能形成具有较高强度的泡沫材料，而本发明中采用的提钛尾渣制备泡沫墙体材料不需要蒸压养护处理，本发明提供的泡沫墙体材料的制备方法综合成本低，符合当前节能环保政策。As can be seen from the above examples, the present invention provides a method for preparing a foam wall material, comprising: mixing the titanium extraction tailings, a binder, an activator and a reinforcing agent to obtain a dry mix; mixing the dry mix mixing with water to obtain mud; mixing the mud with a foaming agent for foaming to obtain a foaming material; curing the foaming material to obtain a foam wall material. The foam wall material in the prior art uses siliceous materials such as stone powder and fly ash as the main raw material, and autoclaving is required to form a foam material with high strength. However, the titanium tailings used in the present invention are used to prepare foam The wall material does not require autoclave curing treatment, and the preparation method of the foam wall material provided by the invention has low overall cost and conforms to current energy conservation and environmental protection policies.
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Application publication date: 20181211 |