CN108101554B - 用于冶金的轻质耐高温隔热板及其制备方法 - Google Patents
用于冶金的轻质耐高温隔热板及其制备方法 Download PDFInfo
- Publication number
- CN108101554B CN108101554B CN201711160450.7A CN201711160450A CN108101554B CN 108101554 B CN108101554 B CN 108101554B CN 201711160450 A CN201711160450 A CN 201711160450A CN 108101554 B CN108101554 B CN 108101554B
- Authority
- CN
- China
- Prior art keywords
- temperature
- placing
- less
- percent
- resistant heat
- 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.)
- Active
Links
- 238000005272 metallurgy Methods 0.000 title claims abstract description 20
- 238000002360 preparation method Methods 0.000 title abstract description 6
- 239000002994 raw material Substances 0.000 claims abstract description 33
- 239000000203 mixture Substances 0.000 claims abstract description 28
- 238000001035 drying Methods 0.000 claims abstract description 23
- 238000004321 preservation Methods 0.000 claims abstract description 19
- 238000002156 mixing Methods 0.000 claims abstract description 13
- 238000003756 stirring Methods 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000009413 insulation Methods 0.000 claims abstract description 8
- 238000000465 moulding Methods 0.000 claims abstract description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 56
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 49
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 42
- 239000011324 bead Substances 0.000 claims description 29
- 238000007667 floating Methods 0.000 claims description 29
- 239000000395 magnesium oxide Substances 0.000 claims description 28
- 239000000843 powder Substances 0.000 claims description 27
- 239000000377 silicon dioxide Substances 0.000 claims description 26
- 239000002245 particle Substances 0.000 claims description 24
- 239000000292 calcium oxide Substances 0.000 claims description 21
- 235000012255 calcium oxide Nutrition 0.000 claims description 21
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 20
- 229910052903 pyrophyllite Inorganic materials 0.000 claims description 19
- 239000004568 cement Substances 0.000 claims description 18
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 claims description 18
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 claims description 12
- 235000019982 sodium hexametaphosphate Nutrition 0.000 claims description 12
- 239000007767 bonding agent Substances 0.000 claims description 7
- 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 6
- YYRMJZQKEFZXMX-UHFFFAOYSA-N calcium;phosphoric acid Chemical compound [Ca+2].OP(O)(O)=O.OP(O)(O)=O YYRMJZQKEFZXMX-UHFFFAOYSA-N 0.000 claims description 6
- 239000011734 sodium Substances 0.000 claims description 6
- 229910052708 sodium Inorganic materials 0.000 claims description 6
- FQENQNTWSFEDLI-UHFFFAOYSA-J sodium diphosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])([O-])=O FQENQNTWSFEDLI-UHFFFAOYSA-J 0.000 claims description 6
- 229940048086 sodium pyrophosphate Drugs 0.000 claims description 6
- 239000002426 superphosphate Substances 0.000 claims description 6
- 235000019818 tetrasodium diphosphate Nutrition 0.000 claims description 6
- 235000019832 sodium triphosphate Nutrition 0.000 claims description 5
- 239000011230 binding agent Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 4
- 235000015424 sodium Nutrition 0.000 claims description 4
- 229910052681 coesite Inorganic materials 0.000 claims description 3
- 229910052906 cristobalite Inorganic materials 0.000 claims description 3
- 229910052682 stishovite Inorganic materials 0.000 claims description 3
- 229910052905 tridymite Inorganic materials 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 3
- 239000001095 magnesium carbonate Substances 0.000 claims 1
- 235000014380 magnesium carbonate Nutrition 0.000 claims 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 claims 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 description 10
- 239000010959 steel Substances 0.000 description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 239000011819 refractory material Substances 0.000 description 7
- 238000003860 storage Methods 0.000 description 7
- 239000011449 brick Substances 0.000 description 6
- 239000002131 composite material Substances 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 4
- 238000009851 ferrous metallurgy Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003623 enhancer Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011325 microbead Substances 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 239000001993 wax Substances 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
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
-
- 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
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
-
- 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
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/03—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on magnesium oxide, calcium oxide or oxide mixtures derived from dolomite
- C04B35/04—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on magnesium oxide, calcium oxide or oxide mixtures derived from dolomite based on magnesium oxide
-
- 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
- C04B35/62204—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products using waste materials or refuse
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
- C04B2235/3206—Magnesium oxides or oxide-forming salts thereof
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3418—Silicon oxide, silicic acids or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/349—Clays, e.g. bentonites, smectites such as montmorillonite, vermiculites or kaolines, e.g. illite, talc or sepiolite
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/36—Glass starting materials for making ceramics, e.g. silica glass
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/44—Metal salt constituents or additives chosen for the nature of the anions, e.g. hydrides or acetylacetonate
- C04B2235/447—Phosphates or phosphites, e.g. orthophosphate or hypophosphite
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
- C04B2235/602—Making the green bodies or pre-forms by moulding
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
- C04B2235/6567—Treatment time
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/74—Physical characteristics
- C04B2235/77—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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
- C04B2235/9607—Thermal properties, e.g. thermal expansion coefficient
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Building Environments (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
本发明公开了一种用于冶金的轻质耐高温隔热板及其制备方法；它的原料按重量百分比计由10～70％的玻化微珠、10～70％的漂珠、0～30％的镁砂、0～20％的矾土水泥、0～8％的广西白泥、0.02～5％的结合剂、0～10％的二氧化硅微粉、0～15％的叶腊石粉和0～3％的生石灰组成。按上述比例将原料在搅拌机内加水搅拌混合均匀，得到混合物；混合物置于模具中震动成型，得到成型物，将带模成型物先常温放置8～48h，再带模放入温度为50～80℃的恒温箱中保温8～24h，然后脱模后放入120～200℃干燥箱干燥8～48h，即得到轻质耐高温隔热板。本发明具有轻质、高强、保温性能优良等特点。
Description
技术领域
本发明涉及冶金领域的耐火材料，具体地指一种用于冶金的轻质耐高温隔热板及其制备方法。
背景技术
在钢铁冶金行业中，铁水罐、钢包、中间包等储运铁水、钢水容器的保温性能受到各个钢厂的重视，原始的储运容器耐火材料包括永久层及工作层，工作层耐火材料导热系数普遍偏高，保温作用有限，永久层一般采用高铝砖、粘土砖、高铝浇注料等，导热系数1.2～2.0W/mK(600℃)，保温性能一般，铁水、钢水通过耐火材料热传递至钢壳温度达到300℃，热能损失较大。因此，需要加强钢铁冶金储运容器的保温性能，减少能源损失。
近几年，国内某些钢厂在铁水及钢水等储运设备做了以下几种保温措施：
1)在永久层及钢壳之间附加5～15mm的复合绝热反射板，其导热系数(600℃)≤0.055W/mK，保温性能优异，但其使用温度不超过1000℃，高温易出现粉化现象，影响了储运设备耐火材料的使用寿命，且存在安全隐患；
2)用轻质浇注料作为永久层，导热系数(600℃)≤2.0W/mK其保温性能得到了一定的提高，但轻质浇注料的强度低，高温收缩大；
3)用烧成腊石砖作为永久层，导热系数(600℃)≤1.6W/mK，保温性能一般，其使用寿命高于普通永久层，但其成本较高，性价比低；
4)用轻质耐火砖作为永久层，导热系数(600℃)≤0.8W/mK，保温性能较好，但其强度低，寿命低于一般永久层，成本较高，大幅度增加了耐火材料消耗成本。
因此，为适应钢铁冶金需求，保证耐材使用寿命，有必要开发一种隔热材料，用于冶金储运容器的永久层与钢壳之间，具有轻质、高强、耐高温(使用温度＞1000℃)、保温性能好等特点。
发明内容
本发明现有技术存在的缺陷，提供了一种用于冶金的轻质耐高温隔热板及其制备方法，该轻质耐高温隔热板具有强度高，耐高温、导热系数低，成本低等特点。
为实现上述目的，本发明提供的一种用于冶金的轻质耐高温隔热板，所述轻质耐高温隔热板的原料按重量百分比计由10％～70％的玻化微珠、10～70％的漂珠、0～30％的镁砂、0～20％的矾土水泥、0～8％的广西白泥、0.02～5％的结合剂、0～10％的二氧化硅微粉、0～15％的叶腊石粉和0～3％的生石灰组成。
进一步地，所述轻质耐高温隔热板的原料按重量百分比计由10％～50％的玻化微珠、10～60％的漂珠、10～30％的镁砂、5～20％的矾土水泥、1～8％的广西白泥、0.02～5％的结合剂、2～10％的二氧化硅微粉、1～15％的叶腊石粉和0.1～3％的生石灰组成。
再进一步地，所述漂珠按粒径大小分为：粒径≤0.088mm和0.088mm＜粒径≤2mm两个配级，其重量百分比为0～30％和70～100％。
再进一步地，所述轻质耐高温隔热板的原料按重量百分比计由50％的玻化微珠、10％的0.088mm＜粒径≤2mm的漂珠、3％的粒径≤0.088mm的漂珠、18％的粒径≤0.088mm的镁砂、4.8％的矾土水泥、2％广西白泥、3％的六偏磷酸钠、8％的二氧化硅微粉、1％的叶腊石粉和0.2％的生石灰组成。
再进一步地，所述玻化微珠的粒度为50～200目。
再进一步地，所述镁砂中MgO含量不低于85％；其粒径≤0.088mm目。
再进一步地，所述二氧化硅微粉中，SiO2含量不低于90％。
再进一步地，所述叶腊石粉中SiO2含量不低于75％；所述生石灰中CaO含量不低于80％，活性度不低于220ml。
再进一步地，所述结合剂为三聚磷酸钠、六偏磷酸钠或超磷酸钠和焦磷酸钠中的任意一种或几种。
本发明还提供了一种上述用于冶金的轻质耐高温隔热板的制备方法，包括以下步骤：
1)按上述重量百分比玻化微珠、漂珠、镁砂、矾土水泥、广西白泥、结合剂、二氧化硅微粉、叶腊石粉和生石灰；
2)将玻化微珠、漂珠、镁砂、矾土水泥、广西白泥、结合剂、二氧化硅微粉、叶腊石粉和生石灰置于搅拌机中；再向搅拌机内加水搅拌混合均匀，得到混合物；
3)混合物置于模具中震动成型，得到成型物，将带模成型物先常温放置8～48h，再带模放入温度为50～80℃的恒温箱中保温8～24h，然后脱模后放入120～200℃干燥箱干燥8～48h，即得到轻质耐高温隔热板。
本发明技术原理如下：
主要原料漂珠及玻化微珠均为轻质原料，所得制品体密低，导热系数低。漂珠的耐火度为1600～1700℃，玻化微珠可在1000℃使用，镁砂耐火度＞2000℃，因此该轻质耐高温隔热板使用温度可达到1200℃以上。采用三聚磷酸钠或六偏磷酸钠或超磷酸钠或焦磷酸钠中的一种或几种与镁砂反应作为结合剂，复合矾土水泥及二氧化硅微粉等作为强度增强剂，确保了在各个温度下均具有较高强度。
本发明的有益效果在于：
1)本发明的用于冶金的轻质耐高温隔热板体积密度≤0.7g/cm3，导热系数(600℃)≤0.25W/mK，耐压强度＞3MPa(120℃～1200℃热处理后)，具有轻质、高强、保温性能优良等特点。
2)本发明的用于冶金的轻质耐高温隔热板选用玻化微珠、漂珠、镁砂等原料作为主要原料，具有耐高温的特点。
3)本发明的用于冶金的轻质耐高温隔热板以三聚磷酸钠或六偏磷酸钠或超磷酸钠或焦磷酸钠中的一种或几种，搭配镁砂、矾土水泥及二氧化硅微粉作为复合结合剂，具有各温度下强度保持率高的特点。
4)本发明的用于冶金的轻质耐高温隔热板最高热处理温度为120℃，无需高温烧成，制作工艺简单，成本低。
5)本发明的用于冶金的轻质耐高温隔热板的原料来源广泛，安全可靠，用于冶金储运容器的永久层与钢壳之间，使用寿命与永久层同步。
具体实施方式
为了更好地解释本发明，以下结合具体实施例进一步阐明本发明的主要内容，但本发明的内容不仅仅局限于以下实施例。
下述实施例中使用的原料均购于市场，各个原料要求如下：
1)镁砂中MgO含量不低于85％；其粒径≤0.088mm；所述二氧化硅微粉中，SiO2含量不低于90％。
2)叶腊石粉中SiO2含量不低于75％；
3)生石灰中CaO含量不低于80％，活性度不低于220ml。
实施例1
轻质耐高温隔热板1的原料组成和重量百分比为：
粒度为50目的玻化微珠：50％；
0.088mm＜粒径≤2mm的漂珠：10％；
粒径≤0.088mm的漂珠：3％；
粒径≤0.088mm的镁砂：18％；
矾土水泥4.8％；
广西白泥：2％；
六偏磷酸钠：3％；
二氧化硅微粉：8％；
叶腊石粉：1％；
生石灰：0.2％
将以上原料按照配比在搅拌机内加水搅拌混合均匀，置于模具中震动成型，常温放置24h，带模放入50℃恒温箱保温24h，脱模后放入120℃干燥箱干燥48h，即得轻质耐高温隔热板1。
实施例2
轻质耐高温隔热板2的原料组成和重量百分比为：
粒度为200目的玻化微珠：30％；
0.088mm＜粒径≤2mm的漂珠：30％；
粒径≤0.088mm的镁砂：10％；
矾土水泥14.9％；
广西白泥：5％；
六偏磷酸钠：3％；
二氧化硅微粉：5％；
叶腊石粉：2％；
生石灰：0.1％
将以上原料按照配比在搅拌机内加水搅拌混合均匀，置于模具中震动成型，常温放置8h，带模放入60℃恒温箱保温8h，脱模后放入120℃干燥箱干燥24h，即得轻质耐高温隔热板2。
实施例3
轻质耐高温隔热板3的原料组成和重量百分比为：
粒度为50目的玻化微珠：30％；
0.088mm＜粒径≤2mm的漂珠：20％；
粒径≤0.088mm的镁砂：12％；
矾土水泥16.8％；
广西白泥：8％；
六偏磷酸钠：0.2％；
二氧化硅微粉：3％；
叶腊石粉：10％；
生石灰：0.2％
将以上原料按照配比在搅拌机内加水搅拌混合均匀，置于模具中震动成型，常温放置12h，带模放入60℃恒温箱保温12h，脱模后放入150℃干燥箱干燥12h，即得轻质耐高温隔热板3。
实施例4
轻质耐高温隔热板4的原料组成和重量百分比为：
粒度为100目的玻化微珠：40％；
0.088mm＜粒径≤2mm的漂珠：20％；
粒径≤0.088mm的镁砂：25％；
矾土水泥3％；
广西白泥：5％；
三聚磷酸钠：2％；
二氧化硅微粉：3％；
叶腊石粉：1％；
生石灰：1％
将以上原料按照配比在搅拌机内加水搅拌混合均匀，置于模具中震动成型，常温放置24h，带模放入70℃恒温箱保温24h，脱模后放入120℃干燥箱干燥36h，即得轻质耐高温隔热板4。
实施例5
轻质耐高温隔热板5的原料组成和重量百分比为：
粒度为120目的玻化微珠：20％；
0.088mm＜粒径≤2mm的漂珠：10％；
粒径≤0.088mm的镁砂：30％；
矾土水泥15％；
广西白泥：2％；
超磷酸钠1％
焦磷酸钠3％；
二氧化硅微粉：2％；
叶腊石粉：14％；
生石灰：3％
将以上原料按照配比在搅拌机内加水搅拌混合均匀，置于模具中震动成型，常温放置≥8h，带模放入80℃恒温箱保温12h，脱模后放入180℃干燥箱干燥24h，即得轻质耐高温隔热板5。
实施例6
轻质耐高温隔热板6的原料组成和重量百分比为：
粒度为120目的玻化微珠：10％；
0.088mm＜粒径≤2mm的漂珠：25％；
粒径≤0.088mm的漂珠：10％；
粒径≤0.088mm的镁砂：10％；
矾土水泥20％；
广西白泥：1％；
超磷酸钠1％
焦磷酸钠3％；
二氧化硅微粉：10％；
叶腊石粉：7％；
生石灰：3％
将以上原料按照配比在搅拌机内加水搅拌混合均匀，置于模具中震动成型，常温放置≥8h，带模放入80℃恒温箱保温24h，脱模后放入180℃干燥箱干燥20h，即得轻质耐高温隔热板6。
实施例7
轻质耐高温隔热板7的原料组成和重量百分比为：
粒度为50目的玻化微珠：70％；
0.088mm＜粒径≤2mm的漂珠：14％；
粒径≤0.088mm的漂珠：6％；
粒径≤0.088mm的镁砂：10％；
将以上原料按照配比在搅拌机内加水搅拌混合均匀，置于模具中震动成型，常温放置8h，带模放入60℃恒温箱保温8h，脱模后放入120℃干燥箱干燥24h，即得轻质耐高温隔热板7。
实施例8
轻质耐高温隔热板8的原料组成和重量百分比为：
粒度为50目的玻化微珠：10％；
0.088mm＜粒径≤2mm的漂珠：40％；
粒径≤0.088mm的镁砂：20％；
矾土水泥：20％；
广西白泥：5％；
六偏磷酸钠：2％；
二氧化硅微粉：3％；
将以上原料按照配比在搅拌机内加水搅拌混合均匀，置于模具中震动成型，常温放置12h，带模放入60℃恒温箱12h，脱模后放入150℃干燥箱12h，即得轻质耐高温隔热板8。
实施例9
轻质耐高温隔热板9的原料组成和重量百分比为：
粒度为200目的玻化微珠：30％；
0.088mm＜粒径≤2mm的漂珠：40％；
粒径≤0.088mm的镁砂：10％；
广西白泥：5％；
六偏磷酸钠：2％；
二氧化硅微粉：8％；
叶腊石粉：5％；
将以上原料按照配比在搅拌机内加水搅拌混合均匀，置于模具中震动成型，常温放置24h，带模放入50℃恒温箱保温24h，脱模后放入120℃干燥箱48h，即得轻质耐高温隔热板9。
实施例10
轻质耐高温隔热板10的原料组成和重量百分比为：
粒度为100目的玻化微珠：40％；
0.088mm＜粒径≤2mm的漂珠：20％；
粒径≤0.088mm的镁砂：30％；
广西白泥：5％；
六偏磷酸钠：2％；
二氧化硅微粉：3％；
将以上原料按照配比在搅拌机内加水搅拌混合均匀，置于模具中震动成型，常温放置24h，带模放入70℃恒温箱保温24h，脱模后放入120℃干燥箱36h，即得轻质耐高温隔热板10。
以上述实例得到的轻质耐高温隔热板与现有的保温材料对比如下表：
从上表中可以看出，所有实例均优于复合绝热反射板，轻质浇注料，烧成腊石砖，轻质耐火砖，其中实施例1在热导率较低的情况下，仍具有较低的体积密度及较高的耐压强度，为最优实例。
其它未详细说明的部分均为现有技术。尽管上述实施例对本发明做出了详尽的描述，但它仅仅是本发明一部分实施例，而不是全部实施例，人们还可以根据本实施例在不经创造性前提下获得其他实施例，这些实施例都属于本发明保护范围。
Claims (6)
1.一种用于冶金的轻质耐高温隔热板，其特征在于：所述轻质耐高温隔热板的原料按重量百分比计由10％～50％的粒度为50～200目的玻化微珠、10～60％的漂珠、10～30％的镁砂、5～20％的矾土水泥、1～8％的广西白泥、0.02～5％的结合剂、2～10％的二氧化硅微粉、1～15％的叶腊石粉和0.1～3％的生石灰组成，其中；所述漂珠按粒径大小分为：粒径≤0.088mm和0.088mm＜粒径≤2mm两个配级，其重量百分比为0～30％和70～100％。
2.根据权利要求1所述用于冶金的轻质耐高温隔热板，其特征在于：所述轻质耐高温隔热板的原料按重量百分比计由50％的玻化微珠、10％的0.088mm＜粒径≤2mm的漂珠、3％的粒径≤0.088mm的漂珠、18％的粒径≤0.088mm的镁砂、4.8％的矾土水泥、2％广西白泥、3％的六偏磷酸钠、8％的二氧化硅微粉、1％的叶腊石粉和0.2％的生石灰组成。
3.根据权利要求1或2所述用于冶金的轻质耐高温隔热板，其特征在于：所述镁砂中MgO含量不低于85％；其粒径≤0.088mm；所述二氧化硅微粉中，SiO2含量不低于90％。
4.根据权利要求1或2所述用于冶金的轻质耐高温隔热板，其特征在于：所述叶腊石粉中SiO2含量不低于75％；所述生石灰中CaO含量不低于80％，活性度不低于220ml。
5.根据权利要求1或2所述用于冶金的轻质耐高温隔热板，其特征在于：所述结合剂为三聚磷酸钠、六偏磷酸钠或超磷酸钠和焦磷酸钠中的任意一种或几种。
6.一种权利要求1所述用于冶金的轻质耐高温隔热板的制备方法，其特征在于：包括以下步骤：
1)按上述重量百分比玻化微珠、漂珠、镁砂、矾土水泥、广西白泥、结合剂、二氧化硅微粉、叶腊石粉和生石灰；
2)将玻化微珠、漂珠、镁砂、矾土水泥、广西白泥、结合剂、二氧化硅微粉、叶腊石粉和生石灰置于搅拌机中；再向搅拌机内加水搅拌混合均匀，得到混合物；
3)混合物置于模具中震动成型，得到成型物，将带模成型物先常温放置8～48h，再带模放入温度为50～80℃的恒温箱中保温8～24h，然后脱模后放入120～200℃干燥箱干燥8～48h，即得到轻质耐高温隔热板。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711160450.7A CN108101554B (zh) | 2017-11-20 | 2017-11-20 | 用于冶金的轻质耐高温隔热板及其制备方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711160450.7A CN108101554B (zh) | 2017-11-20 | 2017-11-20 | 用于冶金的轻质耐高温隔热板及其制备方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108101554A CN108101554A (zh) | 2018-06-01 |
| CN108101554B true CN108101554B (zh) | 2020-11-24 |
Family
ID=62206996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711160450.7A Active CN108101554B (zh) | 2017-11-20 | 2017-11-20 | 用于冶金的轻质耐高温隔热板及其制备方法 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108101554B (zh) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111393150B (zh) * | 2020-03-24 | 2022-02-01 | 浙江欣辉耐火材料股份有限公司 | 环保型镁质干式料及其制备工艺 |
| CN114315386A (zh) * | 2021-12-30 | 2022-04-12 | 山东潍耐节能材料有限公司 | 捣固焦炉用高效节能漂珠砖的制备方法 |
| CN114455977A (zh) * | 2022-02-22 | 2022-05-10 | 江苏昱奕环保科技有限公司 | 一种预拌砂浆及其制备工艺 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1059329A (zh) * | 1990-08-31 | 1992-03-11 | 中国石油化工总公司 | 高强度低导热隔热衬里材料 |
| RU2098379C1 (ru) * | 1994-01-21 | 1997-12-10 | Всероссийский НИИ экспериментальной физики | Теплоизоляционный состав |
| CN101497528A (zh) * | 2009-03-18 | 2009-08-05 | 于景坤 | 氧化镁质透气砖的制备方法 |
| CN102850073A (zh) * | 2012-10-12 | 2013-01-02 | 天津英康科技发展有限公司 | 一种耐火等级为a1级的无机保温板及其制备方法 |
-
2017
- 2017-11-20 CN CN201711160450.7A patent/CN108101554B/zh active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1059329A (zh) * | 1990-08-31 | 1992-03-11 | 中国石油化工总公司 | 高强度低导热隔热衬里材料 |
| RU2098379C1 (ru) * | 1994-01-21 | 1997-12-10 | Всероссийский НИИ экспериментальной физики | Теплоизоляционный состав |
| CN101497528A (zh) * | 2009-03-18 | 2009-08-05 | 于景坤 | 氧化镁质透气砖的制备方法 |
| CN102850073A (zh) * | 2012-10-12 | 2013-01-02 | 天津英康科技发展有限公司 | 一种耐火等级为a1级的无机保温板及其制备方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108101554A (zh) | 2018-06-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101220195B (zh) | 含纳米碳粉的酚醛树脂、纳米碳改性的低碳镁碳砖及制备方法 | |
| CN110256090B (zh) | 一种中间包永久层用轻量化保温浇注料 | |
| CN102133632B (zh) | 一种连铸中间包综合工作衬及制备工艺 | |
| CN103539467B (zh) | 一种机压无碳刚玉尖晶石钢包衬砖及其制备方法 | |
| CN103482989B (zh) | 刚玉镁铝尖晶石浇注料以及使用浇注料制备预制砖的方法 | |
| CN102329137B (zh) | 一种无碳铝镁质不烧砖、配制方法及应用 | |
| CN103204692B (zh) | 一种轻质莫来石砖及其制备方法 | |
| CN108101554B (zh) | 用于冶金的轻质耐高温隔热板及其制备方法 | |
| CN104045354B (zh) | 再生刚玉尖晶石不烧钢包砖 | |
| CN102718513A (zh) | 一种铝镁质耐火浇注料及其制备方法 | |
| CN103130523B (zh) | 冒口材料及其生产方法 | |
| CN102674866B (zh) | 镁铁尖晶石隔热复合砖 | |
| CN103030413B (zh) | 一种刚玉莫来石坩埚的制备方法 | |
| CN111253164A (zh) | 钢包永久层用轻质耐火砖 | |
| CN103553678B (zh) | 中间包包盖用耐火浇注料 | |
| CN103332940A (zh) | 铜熔炼炉用半再结合镁铬砖及其制备方法 | |
| CN106518043A (zh) | 低成本铝钙硅质锡槽底砖的制备方法 | |
| CN109160807A (zh) | 一种金属基铝镁尖晶石滑板及其制备方法 | |
| CN104478449A (zh) | 钢包用机压无碳刚玉尖晶石砖及其制备方法 | |
| CN100478306C (zh) | 一种高铝质电炉盖浇注料及其制备方法 | |
| CN103467119A (zh) | 一种微孔铝碳砖的制备方法 | |
| CN105000893A (zh) | 一种耐高温复合坩埚及其制备方法 | |
| CN114349521B (zh) | 一种高强度纳米绝热板及其制备方法 | |
| CN115536410A (zh) | 一种低碳镁碳砖及其制备方法 | |
| CN114874003A (zh) | 一种含六铝酸钙的低导热钢包永久层浇注料 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |