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A platform for research: civil engineering, architecture and urbanism
Calcined magnesium oxide powder for water heater as well as preparation method and application of calcined magnesium oxide powder
The invention provides calcined magnesium oxide powder for a water heater and a preparation method and application of the calcined magnesium oxide powder, and the calcined magnesium oxide powder comprises the following components in percentage by mass: more than or equal to 95% wt of MgO; less than or equal to 1.5% wt of CaO; less than or equal to 0.6% wt of Fe2O3; less than or equal to 0.5% wt of Al2O3; less than or equal to 2.5% wt of SiO2; and less than or equal to 0.2% wt of LOI. The calcined magnesium oxide powder for the water heater has the advantages of high density (the original density is 2.30-2.34 g/cm<3>, and the current density is 2.35-2.38 g/cm<3>) and high flow velocity (the original flow velocity under the condition of 100g of magnesium powder), and a heating tube is filled with the magnesium oxide powder more compactly. The invention also discloses a preparation method of the calcined magnesium oxide powder for the water heater. A calcined heating tube of the water heater prepared from the magnesium oxide powder is long in service life and excellent in insulation and breakdown resistance.
本发明提供一种煅烧热水器用氧化镁粉、其制备方法及用途，本发明煅烧热水器用氧化镁粉，包括质量百分含量如下的各组分：MgO≥95％wt；CaO≤1.5％wt；Fe2O3≤0.6％wt；Al2O3≤0.5％wt；SiO2≤2.5％wt；LOI≤0.2％wt。本发明煅烧热水器用氧化镁粉具有密度大(原有密度2.30‑2.34g/cm3，现在密度2.35‑2.38g/cm3)，流速快(100g镁粉情况下，原有流速为)的优点，填充发热管更加密实。本发明还公开了煅烧热水器用氧化镁粉的制备方法，采用该氧化镁粉制备的煅烧热水器发热管寿命长，绝缘和抗击穿性能优异。
Calcined magnesium oxide powder for water heater as well as preparation method and application of calcined magnesium oxide powder
The invention provides calcined magnesium oxide powder for a water heater and a preparation method and application of the calcined magnesium oxide powder, and the calcined magnesium oxide powder comprises the following components in percentage by mass: more than or equal to 95% wt of MgO; less than or equal to 1.5% wt of CaO; less than or equal to 0.6% wt of Fe2O3; less than or equal to 0.5% wt of Al2O3; less than or equal to 2.5% wt of SiO2; and less than or equal to 0.2% wt of LOI. The calcined magnesium oxide powder for the water heater has the advantages of high density (the original density is 2.30-2.34 g/cm<3>, and the current density is 2.35-2.38 g/cm<3>) and high flow velocity (the original flow velocity under the condition of 100g of magnesium powder), and a heating tube is filled with the magnesium oxide powder more compactly. The invention also discloses a preparation method of the calcined magnesium oxide powder for the water heater. A calcined heating tube of the water heater prepared from the magnesium oxide powder is long in service life and excellent in insulation and breakdown resistance.
本发明提供一种煅烧热水器用氧化镁粉、其制备方法及用途，本发明煅烧热水器用氧化镁粉，包括质量百分含量如下的各组分：MgO≥95％wt；CaO≤1.5％wt；Fe2O3≤0.6％wt；Al2O3≤0.5％wt；SiO2≤2.5％wt；LOI≤0.2％wt。本发明煅烧热水器用氧化镁粉具有密度大(原有密度2.30‑2.34g/cm3，现在密度2.35‑2.38g/cm3)，流速快(100g镁粉情况下，原有流速为)的优点，填充发热管更加密实。本发明还公开了煅烧热水器用氧化镁粉的制备方法，采用该氧化镁粉制备的煅烧热水器发热管寿命长，绝缘和抗击穿性能优异。
Calcined magnesium oxide powder for water heater as well as preparation method and application of calcined magnesium oxide powder
一种煅烧热水器用氧化镁粉、其制备方法及用途
LI GUANGMING (author) / ZHANG CHENGCHENG (author) / SONG NA (author) / TIAN JIAN (author) / GUO XINGKAI (author) / WANG LIXIANG (author) / LIU YONGLI (author) / GUO FAXIANG (author) / CHEN CHUNGUANG (author)
2021-11-02
Patent
Electronic Resource
Chinese
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