Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Low-creep high-alumina brick for hot blast stove and preparation method of low-creep high-alumina brick
The invention discloses a low-creep high-alumina brick for a hot blast stove and a preparation method of the low-creep high-alumina brick. The low-creep high-alumina brick is prepared from the following raw materials: secondary acid pickling brown fused alumina, common brown fused alumina, electric smelting mullite, special-grade alumina, first-grade alumina, compact white corundum, Weiluo white mud, andalusite, sillimanite and a binding agent. According to the low-creep high-alumina brick for the hot blast stove and the preparation method of the low-creep-deformation high-alumina brick, the secondary acid pickling brown aluminum oxide, the common brown aluminum oxide and the electric smelting mullite are added to replace a part of alumina, so that the purity of the raw materials can be effectively improved; by adding the Weiluo white mud, the andalusite and the sillimanite, the organizational structure of the product can be improved by utilizing the phase change at high temperature, the creep resistance of the product is improved, the creep resistance is improved due to mullitization of the andalusite in a matrix, and by adding a certain amount of binding agent, the sintering difficulty of the product can be reduced, and a compact tissue structure and a sound microstructure are achieved.
本发明公开了一种热风炉用低蠕变高铝砖及其制备方法，包括以下份额的原材料：二次酸洗棕刚玉、普通棕刚玉、电熔莫来石、特级矾土、一级矾土、致密白刚玉、维罗白泥、红柱石、硅线石和结合剂。本发明所述的一种热风炉用低蠕变高铝砖及其制备方法，通过加入的二次酸洗棕刚玉、普通棕刚玉和电熔莫来石替代一部分的矾土，能有效提高原料的纯度，通过添加的维罗白泥、红柱石、硅线石能利用其高温下的相变化来改善制品的组织结构，提高其蠕变性能，由于基质中红柱石的莫来石化，使得抗蠕变性能得到提高，通过添加一定的结合剂，使其能减少制品烧结的困难度，已达到致密的组织结构，良好的显微结构。
Low-creep high-alumina brick for hot blast stove and preparation method of low-creep high-alumina brick
The invention discloses a low-creep high-alumina brick for a hot blast stove and a preparation method of the low-creep high-alumina brick. The low-creep high-alumina brick is prepared from the following raw materials: secondary acid pickling brown fused alumina, common brown fused alumina, electric smelting mullite, special-grade alumina, first-grade alumina, compact white corundum, Weiluo white mud, andalusite, sillimanite and a binding agent. According to the low-creep high-alumina brick for the hot blast stove and the preparation method of the low-creep-deformation high-alumina brick, the secondary acid pickling brown aluminum oxide, the common brown aluminum oxide and the electric smelting mullite are added to replace a part of alumina, so that the purity of the raw materials can be effectively improved; by adding the Weiluo white mud, the andalusite and the sillimanite, the organizational structure of the product can be improved by utilizing the phase change at high temperature, the creep resistance of the product is improved, the creep resistance is improved due to mullitization of the andalusite in a matrix, and by adding a certain amount of binding agent, the sintering difficulty of the product can be reduced, and a compact tissue structure and a sound microstructure are achieved.
本发明公开了一种热风炉用低蠕变高铝砖及其制备方法，包括以下份额的原材料：二次酸洗棕刚玉、普通棕刚玉、电熔莫来石、特级矾土、一级矾土、致密白刚玉、维罗白泥、红柱石、硅线石和结合剂。本发明所述的一种热风炉用低蠕变高铝砖及其制备方法，通过加入的二次酸洗棕刚玉、普通棕刚玉和电熔莫来石替代一部分的矾土，能有效提高原料的纯度，通过添加的维罗白泥、红柱石、硅线石能利用其高温下的相变化来改善制品的组织结构，提高其蠕变性能，由于基质中红柱石的莫来石化，使得抗蠕变性能得到提高，通过添加一定的结合剂，使其能减少制品烧结的困难度，已达到致密的组织结构，良好的显微结构。
Low-creep high-alumina brick for hot blast stove and preparation method of low-creep high-alumina brick
一种热风炉用低蠕变高铝砖及其制备方法
ZHOU ZHANCHAO (Autor:in) / ZHOU CHAOQI (Autor:in) / WU SHUPENG (Autor:in) / GUO LIPENG (Autor:in)
08.02.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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