CN110386824A - 不烧镁铬砖及其制备方法 - Google Patents
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- 239000011449 brick Substances 0.000 title claims abstract description 20
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 239000001095 magnesium carbonate Substances 0.000 claims abstract description 13
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 claims abstract description 13
- 229910000021 magnesium carbonate Inorganic materials 0.000 claims abstract description 13
- 235000014380 magnesium carbonate Nutrition 0.000 claims abstract description 13
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000004615 ingredient Substances 0.000 claims abstract description 6
- 238000007689 inspection Methods 0.000 claims abstract description 6
- 238000004806 packaging method and process Methods 0.000 claims abstract description 6
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910019142 PO4 Inorganic materials 0.000 claims abstract description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims abstract description 4
- 239000010452 phosphate Substances 0.000 claims abstract description 4
- 238000003825 pressing Methods 0.000 claims abstract description 3
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical group [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 7
- 235000019353 potassium silicate Nutrition 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 5
- 239000007864 aqueous solution Substances 0.000 claims description 4
- 229940050906 magnesium chloride hexahydrate Drugs 0.000 claims description 4
- DHRRIBDTHFBPNG-UHFFFAOYSA-L magnesium dichloride hexahydrate Chemical compound O.O.O.O.O.O.[Mg+2].[Cl-].[Cl-] DHRRIBDTHFBPNG-UHFFFAOYSA-L 0.000 claims description 4
- 229910052710 silicon Inorganic materials 0.000 claims description 4
- 239000010703 silicon Substances 0.000 claims description 4
- 239000004327 boric acid Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- MPPQGYCZBNURDG-UHFFFAOYSA-N 2-propionyl-6-dimethylaminonaphthalene Chemical compound C1=C(N(C)C)C=CC2=CC(C(=O)CC)=CC=C21 MPPQGYCZBNURDG-UHFFFAOYSA-N 0.000 claims description 2
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims description 2
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L magnesium chloride Substances [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 claims description 2
- 229910001629 magnesium chloride Inorganic materials 0.000 claims description 2
- 239000002994 raw material Substances 0.000 claims description 2
- 239000001488 sodium phosphate Substances 0.000 claims 1
- 229910000162 sodium phosphate Inorganic materials 0.000 claims 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 4
- 239000011819 refractory material Substances 0.000 abstract description 4
- 230000002708 enhancing effect Effects 0.000 abstract description 2
- 238000005245 sintering Methods 0.000 abstract description 2
- 239000007767 bonding agent Substances 0.000 abstract 1
- 159000000003 magnesium salts Chemical class 0.000 abstract 1
- 239000012266 salt solution Substances 0.000 abstract 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 238000004898 kneading Methods 0.000 description 3
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical group [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 description 2
- 239000000243 solution Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 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 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- UEZVMMHDMIWARA-UHFFFAOYSA-N Metaphosphoric acid Chemical compound OP(=O)=O UEZVMMHDMIWARA-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- NACUKFIFISCLOQ-UHFFFAOYSA-N [Mg].[Cr] Chemical class [Mg].[Cr] NACUKFIFISCLOQ-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 125000005619 boric acid group Chemical group 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229940091250 magnesium supplement Drugs 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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
- 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
- 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
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
- C04B2235/3244—Zirconium oxides, zirconates, hafnium oxides, hafnates, or oxide-forming salts thereof
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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
- 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
- C04B2235/3427—Silicates other than clay, e.g. water glass
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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- 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
- C04B2235/444—Halide containing anions, e.g. bromide, iodate, chlorite
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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- 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
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- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
本发明属于耐火材料技术领域，具体为不烧镁铬砖及其制备方法，原料配料，按照质量份数，电熔镁砂0‑80份，巴基斯坦铬精矿10‑30%，份，烧结镁砂10‑25份，以MgO‑MgCl2‑H2O或磷酸盐或硅酸盐为结合体系，添加少量硬化速度调节剂，配料混练和机压成型，260±7℃条件下干燥24小时，质检包装即可。本发明通过使用镁盐溶液做结合剂，增强不烧镁铬砖的强度，促进不烧镁铬砖使用过程中的工作面烧结，提高其使用寿命和炉龄。
Description
技术领域
本发明属于耐火材料技术领域，具体为不烧镁铬砖及其制备方法。
背景技术
镁铬砖是一种很重要的耐火材料，其耐火温度高、抗中酸性炉渣侵蚀渗透性好，高温强度大，耐高温冲刷磨蚀，广泛应用于钢铁精炼、有色重金属冶炼、玻璃窑炉等高温工业窑炉内衬中。
但是镁铬系列耐火材料大部分是经过高温、超高温烧成，能耗大，生产成本高。
发明内容
本发明提供一种不烧镁铬砖的制备方法，侧重于不烧工艺制度，绿色节能。通过MgO-MgCl2-H2O或磷酸盐或硅酸盐体系结合，添加微量外加剂调节成型泥料的硬化速度。
具体的技术方案为：
原料配料，按照质量份数，电熔镁砂0-80份，巴基斯坦铬精矿10-30份，烧结镁砂10-25份，以MgO-MgCl2-H2O或磷酸盐或硅酸盐为结合体系，添加少量硬化速度调节剂，配料混练和机压成型，260±7℃条件下干燥24小时，质检包装即可。
所述的结合体系为MgO-MgCl2-H2O，MgCl2以六水氯化镁水溶液引入，MgO以电熔镁砂细粉引入。
或者所述的结合体系为六偏磷酸钠+硅灰+水体系。
或者所述的结合体系为水玻璃粉+水玻璃液+水体系。
硬化速度调节剂为硼酸、氟硅酸钠，加入量为原料总质量的0.1-0.8%。
本发明提供的不烧镁铬砖及其制备方法，通过添加六水氯化镁水溶液或六偏磷酸钠+硅灰或水玻璃，形成结合体系，提高不烧镁铬砖的中低温结合强度；促进其使用过程中的烧结，提高其高温强度和致密性，增强不烧镁铬砖抗侵蚀渗透性能，从而提高其使用寿命。
具体实施方式
结合实施例说明本发明的具体技术方案。
实施例1
不烧镁铬砖的制备方法，包括以下步骤：原料配料，按照质量份数，97#电熔镁砂62份，巴基斯坦铬精矿25份，烧结镁砂13份，六水氯化镁水溶液4份，硼酸0.2份，配料、混练和机压成型，260±7℃条件下干燥24小时，质检包装即可。
实施例2
不烧镁铬砖的制备方法，包括以下步骤：原料配料，按照质量份数，97#电熔镁砂70份，巴基斯坦铬精矿10份，烧结镁砂19份，硅灰1份，六偏磷酸钠4份，水 3份，配料、混练和机压成型，260±7℃条件下干燥24小时，质检包装即可。
实施例3
不烧镁铬砖的制备方法，包括以下步骤：原料配料，按照质量份数，97#电熔镁砂50份，巴基斯坦铬精矿30份，烧结镁砂20份，水玻璃粉+水玻璃液4份，水2份，配料、混练和机压成型，260±7℃条件下干燥24小时，质检包装即可。
Claims (6)
1.不烧镁铬砖的制备方法，其特征在于，包括以下步骤：
（1）原料配料，按照质量份数，电熔镁砂0-80份，巴基斯坦铬精矿10-30%，份，烧结镁砂10-25份，以MgO-MgCl2-H2O或磷酸盐或硅酸盐为结合体系，添加适量硬化速度调节剂；
（2）配料混练和机压成型，260±7℃条件下干燥24小时，质检包装即可。
2.根据权利要求1所述的不烧镁铬砖的制备方法，其特征在于，所述的结合体系为MgO-MgCl2-H2O，MgCl2以六水氯化镁水溶液引入，MgO以电熔镁砂细粉引入。
3.根据权利要求1所述的不烧镁铬砖的制备方法，其特征在于，所述的结合体系为六偏磷酸钠+硅灰+水体系。
4.根据权利要求1所述的不烧镁铬砖的制备方法，其特征在于，所述的结合体系为水玻璃粉+水玻璃液+水体系。
5.根据权利要求1所述的不烧镁铬砖的制备方法，其特征在于，所述的硬化速度调节剂为硼酸、氟硅酸钠，加入量为原料总质量的0.1-0.8%。
6.不烧镁铬砖，其特征在于，根据权利要求1到5任一项制备方法所得。
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1225350A (zh) * | 1998-02-06 | 1999-08-11 | 淄博市鲁中耐火材料厂 | 不烧高铝复合砖及其制备方法 |
| WO2007011409A2 (en) * | 2004-11-09 | 2007-01-25 | General Electric Company | Transparent multi-cation ceramic and method of making |
| CN106083073A (zh) * | 2016-06-03 | 2016-11-09 | 宜兴新威利成耐火材料有限公司 | 镁钙锆耐火材料及其制备方法 |
-
2019
- 2019-06-21 CN CN201910542541.XA patent/CN110386824A/zh active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1225350A (zh) * | 1998-02-06 | 1999-08-11 | 淄博市鲁中耐火材料厂 | 不烧高铝复合砖及其制备方法 |
| WO2007011409A2 (en) * | 2004-11-09 | 2007-01-25 | General Electric Company | Transparent multi-cation ceramic and method of making |
| CN106083073A (zh) * | 2016-06-03 | 2016-11-09 | 宜兴新威利成耐火材料有限公司 | 镁钙锆耐火材料及其制备方法 |
Non-Patent Citations (4)
| Title |
|---|
| 尹汝珊等: "《耐火材料技术问答》", 28 February 1994, 冶金工业出版社 * |
| 康宁等: "《电解铝生产》", 30 September 2015, 冶金工业出版社 * |
| 李勇等: "《铜冶金用镁铬耐火材料》", 31 December 2014, 冶金工业出版社 * |
| 李晓明: "《微粉与新型耐火材料》", 30 June 1997, 冶金工业出版社 * |
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Application publication date: 20191029 |