Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for preparing light-weight heat-insulating refractory castable from residues generated in production of magnesium hydroxide from bischofite
The invention discloses a method for preparing a light-weight heat-insulating refractory castable by using residues generated in the production of magnesium hydroxide from bischofite, and relates to a method for preparing a refractory castable by using magnesium hydroxide residues. The invention aims to solve the problems of environmental pollution caused by the existing magnesium hydroxide residues and poor heat insulation effect of the refractory castable. The method comprises the following steps: preparing a radiation energy-saving light-weight CA6-MA aggregate which contains CA6 and transition metal oxide doped magnesium aluminate spinel; the tabular corundum fine powder, the alpha-Al2O3 micro powder, the calcium aluminate cement, the CA6-MA aggregate and the like are mixed and poured into a mold, and demolding and baking are performed after curing. The radiation energy-saving light-weight CA6-MA castable disclosed by the invention adopts the radiation energy-saving light-weight CMA particles, has low thermal conductivity and high radiation coefficient, and also has the advantages of good slag corrosion/permeation resistance and the like of magnesium aluminate spinel. The method is also beneficial for realizing high-added-value green cyclic utilization of solid waste generated by utilizing bischofite in the Qinghai salt lake, and is beneficial for energy conservation and emission reduction of high-temperature industry.
利用水氯镁石生产氢氧化镁产生的残渣制备轻量隔热耐火浇注料的方法，涉及一种利用氢氧化镁残渣制备耐火浇注料的方法。为了解决现有的氢氧化镁残渣导致的环境污染和耐火浇注料的隔热效果差的问题。本发明方法：制备辐射节能轻量化CA6‑MA骨料，含有CA6和过渡金属氧化物掺杂镁铝尖晶石；将板状刚玉细粉、α‑Al2O3微粉、铝酸钙水泥、CA6‑MA骨料等混合浇入模具，养护后进行脱模和烘烤。本发明辐射节能轻量化CA6‑MA浇注料采用辐射节能轻量化CMA颗粒，具有低的导热率和高辐射系数，还兼具镁铝尖晶石良好抗渣侵蚀/渗透性能的等优点。本发明还有助于实现青海盐湖水氯镁石利用产生固废的高附加值绿色循环利用，并有助于高温工业节能减排。
Method for preparing light-weight heat-insulating refractory castable from residues generated in production of magnesium hydroxide from bischofite
The invention discloses a method for preparing a light-weight heat-insulating refractory castable by using residues generated in the production of magnesium hydroxide from bischofite, and relates to a method for preparing a refractory castable by using magnesium hydroxide residues. The invention aims to solve the problems of environmental pollution caused by the existing magnesium hydroxide residues and poor heat insulation effect of the refractory castable. The method comprises the following steps: preparing a radiation energy-saving light-weight CA6-MA aggregate which contains CA6 and transition metal oxide doped magnesium aluminate spinel; the tabular corundum fine powder, the alpha-Al2O3 micro powder, the calcium aluminate cement, the CA6-MA aggregate and the like are mixed and poured into a mold, and demolding and baking are performed after curing. The radiation energy-saving light-weight CA6-MA castable disclosed by the invention adopts the radiation energy-saving light-weight CMA particles, has low thermal conductivity and high radiation coefficient, and also has the advantages of good slag corrosion/permeation resistance and the like of magnesium aluminate spinel. The method is also beneficial for realizing high-added-value green cyclic utilization of solid waste generated by utilizing bischofite in the Qinghai salt lake, and is beneficial for energy conservation and emission reduction of high-temperature industry.
利用水氯镁石生产氢氧化镁产生的残渣制备轻量隔热耐火浇注料的方法，涉及一种利用氢氧化镁残渣制备耐火浇注料的方法。为了解决现有的氢氧化镁残渣导致的环境污染和耐火浇注料的隔热效果差的问题。本发明方法：制备辐射节能轻量化CA6‑MA骨料，含有CA6和过渡金属氧化物掺杂镁铝尖晶石；将板状刚玉细粉、α‑Al2O3微粉、铝酸钙水泥、CA6‑MA骨料等混合浇入模具，养护后进行脱模和烘烤。本发明辐射节能轻量化CA6‑MA浇注料采用辐射节能轻量化CMA颗粒，具有低的导热率和高辐射系数，还兼具镁铝尖晶石良好抗渣侵蚀/渗透性能的等优点。本发明还有助于实现青海盐湖水氯镁石利用产生固废的高附加值绿色循环利用，并有助于高温工业节能减排。
Method for preparing light-weight heat-insulating refractory castable from residues generated in production of magnesium hydroxide from bischofite
利用水氯镁石生产氢氧化镁产生的残渣制备轻量隔热耐火浇注料的方法
LIAO NING (Autor:in) / LI YAWEI (Autor:in) / LIU WENJING (Autor:in) / LI MENGJIE (Autor:in) / BAO LONGYUN (Autor:in) / LU RONGXIAO (Autor:in) / HU XINGPENG (Autor:in)
21.07.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
Method for preparing heat-insulating refractory castable from ferronickel slag
| Europäisches Patentamt | 2023
Method for preparing magnesium spinel zirconium material from salt lake bischofite
| Europäisches Patentamt | 2024
Method for preparing magnesium aluminate spinel from aluminum ash and bischofite
| Europäisches Patentamt | 2020