CN107117940A - 一种基于改性钢渣的多孔材料及其制备方法 - Google Patents
一种基于改性钢渣的多孔材料及其制备方法 Download PDFInfo
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- CN107117940A CN107117940A CN201710269844.XA CN201710269844A CN107117940A CN 107117940 A CN107117940 A CN 107117940A CN 201710269844 A CN201710269844 A CN 201710269844A CN 107117940 A CN107117940 A CN 107117940A
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- Prior art keywords
- parts
- porous material
- modified steel
- material based
- steel scoria
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 79
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- 239000011148 porous material Substances 0.000 title claims abstract description 44
- 241000876852 Scorias Species 0.000 title claims abstract description 41
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 239000002893 slag Substances 0.000 claims abstract description 81
- 238000000227 grinding Methods 0.000 claims abstract description 37
- 239000000843 powder Substances 0.000 claims abstract description 30
- 239000012190 activator Substances 0.000 claims abstract description 29
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims abstract description 28
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- 239000004927 clay Substances 0.000 claims abstract description 20
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- 229960000583 acetic acid Drugs 0.000 claims abstract description 14
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- QCQCHGYLTSGIGX-GHXANHINSA-N 4-[[(3ar,5ar,5br,7ar,9s,11ar,11br,13as)-5a,5b,8,8,11a-pentamethyl-3a-[(5-methylpyridine-3-carbonyl)amino]-2-oxo-1-propan-2-yl-4,5,6,7,7a,9,10,11,11b,12,13,13a-dodecahydro-3h-cyclopenta[a]chrysen-9-yl]oxy]-2,2-dimethyl-4-oxobutanoic acid Chemical compound N([C@@]12CC[C@@]3(C)[C@]4(C)CC[C@H]5C(C)(C)[C@@H](OC(=O)CC(C)(C)C(O)=O)CC[C@]5(C)[C@H]4CC[C@@H]3C1=C(C(C2)=O)C(C)C)C(=O)C1=CN=CC(C)=C1 QCQCHGYLTSGIGX-GHXANHINSA-N 0.000 claims abstract description 3
- 238000002156 mixing Methods 0.000 claims description 9
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- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
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- DLYUQMMRRRQYAE-UHFFFAOYSA-N phosphorus pentoxide Inorganic materials O1P(O2)(=O)OP3(=O)OP1(=O)OP2(=O)O3 DLYUQMMRRRQYAE-UHFFFAOYSA-N 0.000 description 1
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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
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/132—Waste materials; Refuse; Residues
- C04B33/135—Combustion residues, e.g. fly ash, incineration waste
- C04B33/1352—Fuel ashes, e.g. fly ash
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/06—Selection or use of additives to aid disintegrating
-
- 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
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/132—Waste materials; Refuse; Residues
- C04B33/138—Waste materials; Refuse; Residues from metallurgical processes, e.g. slag, furnace dust, galvanic waste
-
- 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
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/62605—Treating the starting powders individually or as mixtures
- C04B35/6261—Milling
-
- 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
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/06—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by burning-out added substances by burning natural expanding materials or by sublimating or melting out added substances
- C04B38/063—Preparing or treating the raw materials individually or as batches
- C04B38/0635—Compounding ingredients
- C04B38/0645—Burnable, meltable, sublimable materials
- C04B38/067—Macromolecular compounds
-
- 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
- C04B5/00—Treatment of metallurgical slag ; Artificial stone from molten metallurgical slag
-
- 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
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Abstract
本发明提供一种基于改性钢渣的多孔材料及其制备方法,该多孔材料由经由改性钢渣研磨细化后与粉煤灰、造孔剂、粘土混合烧结而成,具体制备方法为:将钙盐或钠盐、多元醇胺盐酸盐溶解于水中形成溶液,然后依次将二元醇和有机醇胺化合物混合搅拌,最后加入冰醋酸,混合均匀后得到助磨活化剂;将助磨活化剂加入到钢渣中,至于球磨机中高速球磨,得到磨细活化钢渣粉;将磨细活化钢渣粉与粉煤灰混合均匀,用少量水湿润陈化,加入充分润湿的聚苯乙烯泡沫颗粒,再加入粘土,混合均匀,压制成圆坯,高温烧结,得到基于改性钢渣的多孔材料。本发明以粒度细、活性高的改性钢渣作为原料,制备形成的多孔材料的孔隙率适中,机械强度好,综合性能好。
Description
技术领域
本发明属于钢渣材料技术领域,具体涉及一种基于改性钢渣的多孔材料及其制备方法。
背景技术
炉渣是钢铁企业主要固体废物,随着节能减排和环保要求的不断提高,钢铁企业降本增效的压力也不断增加。炉渣中炼铁炉渣占钢产量的25-30%,炼钢炉渣占钢产量的11-15%,其中钢渣的利用还不是很充分,多数任然处于简单堆存和任意排放状态,因此钢渣的回收再利用关系到钢铁行业和环境的发展。
钢渣的主要化学成分有氧化钙、二氧化硅、三氧化二铝、氧化铁、三氧化二铁、氧化镁、氧化锰、五氧化二磷等,钢渣处于高碱性炉渣,根据钢渣的反应特征可分为氧化性炉渣和还原性炉渣,其中氧化性炉渣含有大量的高密度化合物,强度较高,质地坚硬,难破碎,较难磨碎,具有水硬胶凝性能,长期放置会膨胀风化成粉,不稳定。目前研究表明,钢渣可用于回收废钢、做烧结矿熔剂、用于建筑材料、作农肥和酸性土壤改良剂、环保治理和制备微晶玻璃等方面进行资源化利用,但是由于钢渣的易磨性较差,水化活性较低,增加了钢渣的再利用难度,因此对钢渣进行改性处理显得十分必要。
中国专利CN 103819104B公开的一种矿渣、钢渣助磨活化剂,该助磨活化剂中含有乳糖、丙二醇、乙二醇、聚酰胺、油酸、元明粉、烧碱和复合助剂,该复合助剂中包括凹凸棒土、叶腊石、伊利石经酸处理和高温处理形成颗粒,再与聚丙烯酸钠、吐温、海藻酸钠和羧甲基淀粉研磨,再与木质素磺酸钙、硬脂酸钙、3-氨基丙基三乙氧基硅烷、玉石粉球磨制成。该助磨活化剂添加入矿渣或者钢渣中,通过球磨、立磨和辊压机作用,使矿渣或者钢渣细化,该助磨活化剂中含有多种表面活性剂,可以降低矿渣和钢渣的表面自由能,防止团聚接团,并利用软化剂使矿渣和钢渣软化易磨。但是该方法制备的助磨活化剂组成复杂,含有多种石材,制备工艺较为复杂,成本较高,不适于矿渣的大面积处理。本发明将无机盐作为主要材料,在降低钢渣助磨活化的同时,降低助磨活化剂的成本,实现钢铁产业的降本增效。
发明内容
本发明要解决的技术问题是提供一种基于改性钢渣的多孔材料及其制备方法,利用有机溶液制备钢渣助磨活化剂,使钢渣粒度小,活性大,再与粉煤灰、粘土和聚苯乙烯颗粒混合烧结得到孔隙率适中、机械强度好的多孔材料,本发明制备的助磨活化剂显著提高钢渣及其复合材料的性能,提高了钢渣的使用领域。
为解决上述技术问题,本发明的技术方案是:
一种基于改性钢渣的多孔材料,所述基于改性钢渣的多孔材料的原料为改性钢渣,所述改性钢渣是钢渣经钢渣助磨活化剂处理得到,所述基于改性钢渣的多孔材料经由改性钢渣研磨细化后与粉煤灰、造孔剂、粘土混合烧结而成,所述钢渣助磨活化剂包括二元醇化合物、多元醇胺盐酸盐、钙盐或者钠盐、冰醋酸和水构成,所述钢渣助磨活化剂的组分,按照重量份计,包括:二元醇化合物5-20份,多元醇胺盐酸盐2-10份,钙盐或者钠盐10-20份,冰醋酸0-2份,余量为水。
作为一种技术方案的优选,所述二元醇化合物为三乙二醇,1,4-丁二醇,新戊二醇中的一种或多种。
作为一种技术方案的优选,所述多元醇胺盐酸盐为三乙醇胺盐酸盐和三异丙醇胺盐酸盐中的一种或者两种。
作为一种技术方案的优选,所述有机醇胺化合物为二乙烯三胺、氨基乙基乙醇胺、N-甲基二乙醇胺、一乙醇二异丙醇胺中的一种或多种。
作为一种技术方案的优选,所述钙盐或钠盐为乙酸钙、甲酸钙、乙酸钠、甲酸钠、硫代硫酸钠中的一种或多种。
本发明还提供一种基于改性钢渣的多孔材料的制备方法,包括以下步骤:
(1)将钙盐或钠盐、多元醇胺盐酸盐溶解于水中形成溶液,然后依次将二元醇和有机醇胺化合物混合搅拌,最后加入冰醋酸,混合均匀后得到助磨活化剂;
(2)按照掺和量为0.03-0.12wt%,将步骤(1)制备的助磨活化剂加入到钢渣中,至于球磨机中高速球磨5-10h,得到磨细活化钢渣粉;
(3)将步骤(2)制备的磨细活化钢渣粉与粉煤灰混合均匀,用少量水湿润陈化30min,加入充分润湿的聚苯乙烯泡沫颗粒,再加入粘土,混合均匀,以10-15MPa的压力压制成圆坯,以5℃/min的速率升温至900-1200℃烧结5-10h,得到基于改性钢渣的多孔材料。
作为一种技术方案的优选,所述步骤(1)中,助磨活化剂的组分,按照重量份计,包括:二元醇化合物5-10份,新戊二醇5-10份,三乙醇胺盐酸盐2-5分,三异丙醇胺盐酸盐2-5份,氨基乙基乙醇胺3-5份、N-甲基二乙醇胺2-6份、一乙醇二异丙醇胺4-6份,乙酸钙5-10份,乙酸钠5-10份,冰醋酸0-2份,水余量。
作为一种技术方案的优选,所述步骤(2)中,磨细活化钢渣粉的粒径小于50um,活性指数不低于80%。
作为一种技术方案的优选,所述步骤(3)中,磨细活化钢渣粉与粉煤灰、聚苯乙烯泡沫颗粒、粘土的质量比为60:15:3:10。
作为一种技术方案的优选,所述步骤(3)中,基于改性钢渣的多孔材料的孔隙率不低于50%,抗压强度不低于7MPa。
与现有技术相比,本发明具有以下有益效果:
(1)本发明制备的多孔材料的主要原料为钢渣,钢渣经二元醇化合物及多元醇胺盐酸盐组分处理具有优异的吸附分散性能,中和钢渣颗粒表面积微裂纹中的电荷,降低表面自由能,减少或者消除颗粒间的粘附和团聚,而且有机醇胺组分对钙离子具有独特的螯合作用,可以促进钢渣的溶出及水化反应,无机电解质组分能调节水化液相环境和加速水化,显著提高钢渣的水化活性,因此,使钢渣的易磨性和活性显著提高,更有利于制备粒径小,活性大的磨细活化钢渣粉。
(2)本发明制备的多孔材料是将磨细活化钢渣粉作为主要原料、粉煤灰和聚苯乙烯微球作为成孔剂,粘土作为粘合剂,经烧结后制备而成。该多孔材料具有较好的力学性能,成孔性好,孔隙的连通性高,孔隙率适中,可以用于材料吸附、复合材料支架等领域。
(3)本发明制备方法简单,改性的钢渣应用性能明显提升,制备的基于改性钢渣的多孔材料应用前景广阔。
具体实施方式
下面将结合具体实施例来详细说明本发明,在此本发明的示意性实施例以及说明用来解释本发明,但并不作为对本发明的限定。
实施例1:
(1)将10份乙酸钙和10份甲酸钙溶解于60份水中形成溶液,其次加入7份三乙醇胺盐酸盐使其完全溶解后,然后依次加入6份二乙烯三胺、2份氨基乙基乙醇胺、6份三乙二醇和3份1,4-丁二醇化合物混合搅拌均匀,最后加入1份冰醋酸,混合均匀后得到助磨活化剂。
(2)按照掺和量为0.03wt%,将助磨活化剂加入到钢渣中,至于球磨机中高速球磨5h,得到磨细活化钢渣粉。
(3)按照磨细活化钢渣粉与粉煤灰、聚苯乙烯泡沫颗粒、粘土的质量比为60:15:3:10,将磨细活化钢渣粉与粉煤灰混合均匀,用少量水湿润陈化30min,加入充分润湿的聚苯乙烯泡沫颗粒,再加入粘土,混合均匀,以10MPa的压力压制成圆坯,以5℃/min的速率升温至900℃烧结5h,得到基于改性钢渣的多孔材料。
实施例2:
(1)将10份甲酸钙和10份硫代硫酸钠溶解于57.8份水中形成溶液,其次加入将6份三异丙醇胺盐酸盐使其完全溶解后,然后依次加入8份三乙二醇、8份N-甲基二乙醇胺化合物混合搅拌均匀,最后加入0.2份冰醋酸,混合均匀后得到助磨活化剂。
(2)按照掺和量为0.12wt%,将助磨活化剂加入到钢渣中,至于球磨机中高速球磨10h,得到磨细活化钢渣粉。
(3)按照磨细活化钢渣粉与粉煤灰、聚苯乙烯泡沫颗粒、粘土的质量比为60:15:3:10,将磨细活化钢渣粉与粉煤灰混合均匀,用少量水湿润陈化30min,加入充分润湿的聚苯乙烯泡沫颗粒,再加入粘土,混合均匀,以15MPa的压力压制成圆坯,以5℃/min的速率升温至1200℃烧结10h,得到基于改性钢渣的多孔材料。
实施例3:
(1)将10份乙酸钙和10份甲酸钠溶解于55.8份水中形成溶液,其次分别加入4份三乙醇胺盐酸盐和4份三异丙醇胺盐酸盐使其完全溶解后,然后依次加入4份氨基乙基乙醇胺、5份N-甲基二乙醇胺和5份一乙醇二异丙醇胺、5份三乙二醇和5份新戊二醇化合物混合搅拌均匀,最后加入1份冰醋酸,混合均匀后得到助磨活化剂。
(2)按照掺和量为0.05wt%,将助磨活化剂加入到钢渣中,至于球磨机中高速球磨6h,得到磨细活化钢渣粉。
(3)按照磨细活化钢渣粉与粉煤灰、聚苯乙烯泡沫颗粒、粘土的质量比为60:15:3:10,将磨细活化钢渣粉与粉煤灰混合均匀,用少量水湿润陈化30min,加入充分润湿的聚苯乙烯泡沫颗粒,再加入粘土,混合均匀,以12MPa的压力压制成圆坯,以5℃/min的速率升温至1000℃烧结8h,得到基于改性钢渣的多孔材料。
实施例4:
(1)将10份乙酸钠和7份硫代硫酸钠溶解于50份水中形成溶液,其次分别加入4份三乙醇胺盐酸盐和4份三异丙醇胺盐酸盐使其完全溶解后,然后依次加入4份氨基乙基乙醇胺、5份N-甲基二乙醇胺、5份一乙醇二异丙醇胺、5份三乙二醇和5份新戊二醇化合物混合搅拌均匀,最后加入1份冰醋酸,混合均匀后得到助磨活化剂。
(2)按照掺和量为0.08wt%,将助磨活化剂加入到钢渣中,至于球磨机中高速球磨8h,得到磨细活化钢渣粉。
(3)按照磨细活化钢渣粉与粉煤灰、聚苯乙烯泡沫颗粒、粘土的质量比为60:15:3:10,将磨细活化钢渣粉与粉煤灰混合均匀,用少量水湿润陈化30min,加入充分润湿的聚苯乙烯泡沫颗粒,再加入粘土,混合均匀,以13MPa的压力压制成圆坯,以5℃/min的速率升温至1000℃烧结8h,得到基于改性钢渣的多孔材料。
实施例5:
(1)将5份甲酸钙和10份甲酸钠溶解于46份水中形成溶液,其次分别加入8份三乙醇胺盐酸盐和2.5份三异丙醇胺盐酸盐使其完全溶解后,然后依次加入8份1,4-丁二醇、4份新戊二醇、5份二乙烯三胺、2份氨基乙基乙醇胺和8份N-甲基二乙醇胺化合物混合搅拌均匀,最后加入1.5份冰醋酸,混合均匀后得到助磨活化剂。
(2)按照掺和量为0.07wt%,将助磨活化剂加入到钢渣中,至于球磨机中高速球磨8h,得到磨细活化钢渣粉。
(3)按照磨细活化钢渣粉与粉煤灰、聚苯乙烯泡沫颗粒、粘土的质量比为60:15:3:10,将磨细活化钢渣粉与粉煤灰混合均匀,用少量水湿润陈化30min,加入充分润湿的聚苯乙烯泡沫颗粒,再加入粘土,混合均匀,以13MPa的压力压制成圆坯,以5℃/min的速率升温至950℃烧结9h,得到基于改性钢渣的多孔材料。
经检测,实施例1-5制备的磨细活化钢渣粉的平均粒径和活性指数的结果如下所示:
实施例1 | 实施例2 | 实施例3 | 实施例4 | 实施例5 | 未处理的钢渣 | |
平均粒径(μm) | 49 | 46 | 47 | 48 | 47 | 76 |
7d活性指数(%) | 80 | 81 | 83 | 85 | 82 | 67 |
28d活性指数(%) | 96 | 97 | 99 | 100 | 99 | 89 |
经检测,实施例1-5制备的基于改性钢渣的多孔材料的孔隙率和机械强度的结果如下所示:
由上表可见,本发明制备的改性钢渣的粒径变小,活性显著提高,减少了团聚和结节的现象,因而制备的多孔材料孔隙率高,孔隙连通性好,且抗压强度好。
上述实施例仅例示性说明本发明的原理及其功效,而非用于限制本发明。任何熟悉此技术的人士皆可在不违背本发明的精神及范畴下,对上述实施例进行修饰或改变。因此,举凡所属技术领域中具有通常知识者在未脱离本发明所揭示的精神与技术思想下所完成的一切等效修饰或改变,仍应由本发明的权利要求所涵盖。
Claims (10)
1.一种基于改性钢渣的多孔材料,其特征在于:所述基于改性钢渣的多孔材料的原料为改性钢渣,所述改性钢渣是钢渣经钢渣助磨活化剂处理得到,所述基于改性钢渣的多孔材料经由改性钢渣研磨细化后与粉煤灰、造孔剂、粘土混合烧结而成,所述钢渣助磨活化剂包括二元醇化合物、多元醇胺盐酸盐、钙盐或者钠盐、冰醋酸和水构成,所述钢渣助磨活化剂的组分,按照重量份计,包括:二元醇化合物5-20份,多元醇胺盐酸盐2-10份,钙盐或者钠盐10-20份,冰醋酸0-2份,水余量。
2.根据权利要求1所述的一种基于改性钢渣的多孔材料,其特征在于:所述二元醇化合物为三乙二醇,1,4-丁二醇,新戊二醇中的一种或多种。
3.根据权利要求1所述的一种基于改性钢渣的多孔材料,其特征在于:所述多元醇胺盐酸盐为三乙醇胺盐酸盐和三异丙醇胺盐酸盐中的一种或者两种。
4.根据权利要求1所述的一种基于改性钢渣的多孔材料,其特征在于:所述有机醇胺化合物为二乙烯三胺、氨基乙基乙醇胺、N-甲基二乙醇胺、一乙醇二异丙醇胺中的一种或多种。
5.根据权利要求1所述的一种基于改性钢渣的多孔材料,其特征在于:所述钙盐或钠盐为乙酸钙、甲酸钙、乙酸钠、甲酸钠、硫代硫酸钠中的一种或多种。
6.一种基于改性钢渣的多孔材料的制备方法,其特征在于,包括以下步骤:
(1)将钙盐或钠盐、多元醇胺盐酸盐溶解于水中形成溶液,然后依次将二元醇和有机醇胺化合物混合搅拌,最后加入冰醋酸,混合均匀后得到助磨活化剂;
(2)按照掺和量为0.03-0.12wt%,将步骤(1)制备的助磨活化剂加入到钢渣中,至于球磨机中高速球磨5-10h,得到磨细活化钢渣粉;
(3)将步骤(2)制备的磨细活化钢渣粉与粉煤灰混合均匀,用少量水湿润陈化30min,加入充分润湿的聚苯乙烯泡沫颗粒,再加入粘土,混合均匀,以10-15MPa的压力压制成圆坯,以5℃/min的速率升温至900-1200℃烧结5-10h,得到基于改性钢渣的多孔材料。
7.根据权利要求6所述的一种基于改性钢渣的多孔材料的制备方法,其特征在于:所述步骤(1)中,助磨活化剂的组分,按照重量份计,包括:二元醇化合物5-10份,新戊二醇5-10份,三乙醇胺盐酸盐2-5分,三异丙醇胺盐酸盐2-5份,氨基乙基乙醇胺3-5份、N-甲基二乙醇胺2-6份、一乙醇二异丙醇胺4-6份,乙酸钙5-10份,乙酸钠5-10份,冰醋酸0-2份,水余量。
8.根据权利要求6所述的一种基于改性钢渣的多孔材料的制备方法,其特征在于:所述步骤(2)中,磨细活化钢渣粉的粒径小于50um,活性指数不低于80%。
9.根据权利要求6所述的一种基于改性钢渣的多孔材料的制备方法,其特征在于:所述步骤(3)中,磨细活化钢渣粉与粉煤灰、聚苯乙烯泡沫颗粒、粘土的质量比为60:15:3:10。
10.根据权利要求6所述的一种基于改性钢渣的多孔材料的制备方法,其特征在于:所述步骤(3)中,基于改性钢渣的多孔材料的孔隙率不低于50%,抗压强度不低于7MPa。
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