Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of light high-strength mullite heat-insulating brick for heat recovery coke oven
The invention relates to the technical field of coke oven construction, in particular to a preparation method of a light high-strength mullite heat-insulating brick for a heat recovery coke oven, which is characterized in that mullite is doped with aluminum oxide to increase rigidity and an expanding agent to reduce density, so that the heat-insulating brick is lower in density, higher in strength and lower in heat conductivity coefficient; comprising the following steps: S1, uniformly mixing sedimentation tank mud, large-particle aluminum oxide, small-particle aluminum oxide, an expanding agent, mullite and water in a sand mixer according to a corresponding ratio; s2, continuing to add a proper amount of water and sawdust into the mixer, and uniformly mixing in the sand mixer to obtain a mixture; s3, performing extrusion molding on the mixture to obtain a heat insulation brick blank; s4, the blank is baked for a period of time under the condition of 300-600 DEG C, and then is baked for 3-6 hours under the condition of 1500 DEG C; and S5, storing the heat insulation brick blank for 8 hours under proper humidity and temperature conditions.
本发明涉及焦炉建造的技术领域，特别是涉及一种热回收焦炉用轻质高强莫来石隔热砖的制备方法，其通过莫来石掺入氧化铝增加刚性，膨胀剂减少密度，从而使隔热砖更加低密高强度，降低导热系数；包括如下步骤：S1、将沉淀池泥、大颗粒氧化铝、小颗粒氧化铝、膨胀剂、莫来石和水，按照相应配比在混砂机中混合均匀；S2、向混料机中继续加入适量的水和锯末，在混砂机中混合均匀的到混合料；S3、将所述混合料挤出成型得到隔热砖坯体；S4、将坯料在300～600℃的条件下烘烤一段时间，再置于1500℃条件下烧制3～6小时完成；S5、将隔热砖坯料在适当的湿度和温度条件下储放8小时。
Preparation method of light high-strength mullite heat-insulating brick for heat recovery coke oven
The invention relates to the technical field of coke oven construction, in particular to a preparation method of a light high-strength mullite heat-insulating brick for a heat recovery coke oven, which is characterized in that mullite is doped with aluminum oxide to increase rigidity and an expanding agent to reduce density, so that the heat-insulating brick is lower in density, higher in strength and lower in heat conductivity coefficient; comprising the following steps: S1, uniformly mixing sedimentation tank mud, large-particle aluminum oxide, small-particle aluminum oxide, an expanding agent, mullite and water in a sand mixer according to a corresponding ratio; s2, continuing to add a proper amount of water and sawdust into the mixer, and uniformly mixing in the sand mixer to obtain a mixture; s3, performing extrusion molding on the mixture to obtain a heat insulation brick blank; s4, the blank is baked for a period of time under the condition of 300-600 DEG C, and then is baked for 3-6 hours under the condition of 1500 DEG C; and S5, storing the heat insulation brick blank for 8 hours under proper humidity and temperature conditions.
本发明涉及焦炉建造的技术领域，特别是涉及一种热回收焦炉用轻质高强莫来石隔热砖的制备方法，其通过莫来石掺入氧化铝增加刚性，膨胀剂减少密度，从而使隔热砖更加低密高强度，降低导热系数；包括如下步骤：S1、将沉淀池泥、大颗粒氧化铝、小颗粒氧化铝、膨胀剂、莫来石和水，按照相应配比在混砂机中混合均匀；S2、向混料机中继续加入适量的水和锯末，在混砂机中混合均匀的到混合料；S3、将所述混合料挤出成型得到隔热砖坯体；S4、将坯料在300～600℃的条件下烘烤一段时间，再置于1500℃条件下烧制3～6小时完成；S5、将隔热砖坯料在适当的湿度和温度条件下储放8小时。
Preparation method of light high-strength mullite heat-insulating brick for heat recovery coke oven
热回收焦炉用轻质高强莫来石隔热砖的制备方法
SUN WEI (Autor:in) / QIU RONGXIA (Autor:in) / DING JUAN (Autor:in)
05.04.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
| Europäisches Patentamt | 2022
Low-thermal-conductivity mullite light heat-insulating brick
| Europäisches Patentamt | 2020
Multistage-pore mullite light heat-insulating brick and preparation method thereof
| Europäisches Patentamt | 2021
Mullite heat-insulating brick and production process thereof
| Europäisches Patentamt | 2021