Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Refractory and heat-insulation material for blast furnace air supply system and preparation method of refractory and heat-insulation material
The invention relates to a refractory and heat-insulation material for a blast furnace air supply system and a preparation method of the refractory and heat-insulation material. The refractory and heat-insulation material is prepared from the following raw materials: AL2O3, SIO2, floating beads, alumina hollow balls, white mud, silica powder, sodium tripolyphosphate, alpha-alumina micro powder, andalusite, sillimanite, kyanite and potassium feldspar. According to the refractory and heat-insulation material for the blast furnace air supply system and the preparation method of the refractory and heat-insulation material, provided by the invention, andalusite, sillimanite, kyanite and potassium feldspar are added to the refractory and heat-insulation material according to a certain proportion, therefore the linear change rate of the refractory and heat-insulation material is increased to be a positive value, slight volume expansion of the refractory and heat-insulation material under the working temperature of 1250-1350 DEG C can be realized, the disadvantage of cracking of the refractory and heat-insulation material caused by volume shrinkage under the condition of a high temperature can be basically eliminated, the fire-resistant and heat-insulation effect is obvious, the service life of throat parts can be improved by nearly one time, and the field downtime ratio is reduced by nearly 35%.
Refractory and heat-insulation material for blast furnace air supply system and preparation method of refractory and heat-insulation material
The invention relates to a refractory and heat-insulation material for a blast furnace air supply system and a preparation method of the refractory and heat-insulation material. The refractory and heat-insulation material is prepared from the following raw materials: AL2O3, SIO2, floating beads, alumina hollow balls, white mud, silica powder, sodium tripolyphosphate, alpha-alumina micro powder, andalusite, sillimanite, kyanite and potassium feldspar. According to the refractory and heat-insulation material for the blast furnace air supply system and the preparation method of the refractory and heat-insulation material, provided by the invention, andalusite, sillimanite, kyanite and potassium feldspar are added to the refractory and heat-insulation material according to a certain proportion, therefore the linear change rate of the refractory and heat-insulation material is increased to be a positive value, slight volume expansion of the refractory and heat-insulation material under the working temperature of 1250-1350 DEG C can be realized, the disadvantage of cracking of the refractory and heat-insulation material caused by volume shrinkage under the condition of a high temperature can be basically eliminated, the fire-resistant and heat-insulation effect is obvious, the service life of throat parts can be improved by nearly one time, and the field downtime ratio is reduced by nearly 35%.
Refractory and heat-insulation material for blast furnace air supply system and preparation method of refractory and heat-insulation material
ZHU HUIHONG (Autor:in) / HUANG SHAN (Autor:in) / GUO CHAO (Autor:in) / ZHANG CHAOYANG (Autor:in) / ZHAO XIAOLIANG (Autor:in)
11.11.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
Refractory heat insulation material and preparation method thereof
| Europäisches Patentamt | 2015
| Europäisches Patentamt | 2022