Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-quality silica brick for hot blast stove and preparation method of high-quality silica brick
The invention discloses a high-quality silica brick for a hot blast stove. The high-quality silica brick comprises 60-70 parts by weight of silica particles, 10-20 parts by weight of silica powder, 5-15 parts by weight of waste silica bricks, a mineralizing agent, a binding agent and an additive, wherein the mineralizing agent comprises 6-7 parts by weight of lime milk and 0.3-0.8 part by weight of silicon nitride powder; the binding agent accounts for 4-10 parts by weight; and the additive comprises 3-5 parts by weight of white carbon black and 3-5 parts by weight of silica fume. The prepared product is a high-quality silica brick with the silicon dioxide content of more than 96%, has the same excellent normal-temperature compressive strength, refractoriness under load and residual quartz as a traditional 96 silica brick, and also has the same excellent characteristic of smaller hot-line expansion rate of as a traditional 95 silica brick; and the yield of the product is high, a rejection rate is low, and while the traditional percent of pass is about 96%, the percent of pass of the technical scheme is 98% or above.
本发明公开了一种热风炉用优质硅砖。包括：60‑70重量份硅石颗粒、10‑20重量份硅石粉、5‑15重量份废硅砖，还包括矿化剂、结合剂、添加剂，矿化剂中包括6‑7重量份石灰乳、0.3‑0.8重量份氮化硅粉，结合剂为4‑10重量份，添加剂为3‑5重量份白炭黑和3‑5重量份的微硅粉。制得的产品为二氧化硅含量大于96%的优质硅砖，既具有传统96硅砖的优良常温耐压强度、荷重软化温度、残余石英，也具有传统95硅砖的热线膨胀率较小的优良特性；成品率高，废品率低，传统合格率约96%，本申请的技术方案的合格率在98%以上。
High-quality silica brick for hot blast stove and preparation method of high-quality silica brick
The invention discloses a high-quality silica brick for a hot blast stove. The high-quality silica brick comprises 60-70 parts by weight of silica particles, 10-20 parts by weight of silica powder, 5-15 parts by weight of waste silica bricks, a mineralizing agent, a binding agent and an additive, wherein the mineralizing agent comprises 6-7 parts by weight of lime milk and 0.3-0.8 part by weight of silicon nitride powder; the binding agent accounts for 4-10 parts by weight; and the additive comprises 3-5 parts by weight of white carbon black and 3-5 parts by weight of silica fume. The prepared product is a high-quality silica brick with the silicon dioxide content of more than 96%, has the same excellent normal-temperature compressive strength, refractoriness under load and residual quartz as a traditional 96 silica brick, and also has the same excellent characteristic of smaller hot-line expansion rate of as a traditional 95 silica brick; and the yield of the product is high, a rejection rate is low, and while the traditional percent of pass is about 96%, the percent of pass of the technical scheme is 98% or above.
本发明公开了一种热风炉用优质硅砖。包括：60‑70重量份硅石颗粒、10‑20重量份硅石粉、5‑15重量份废硅砖，还包括矿化剂、结合剂、添加剂，矿化剂中包括6‑7重量份石灰乳、0.3‑0.8重量份氮化硅粉，结合剂为4‑10重量份，添加剂为3‑5重量份白炭黑和3‑5重量份的微硅粉。制得的产品为二氧化硅含量大于96%的优质硅砖，既具有传统96硅砖的优良常温耐压强度、荷重软化温度、残余石英，也具有传统95硅砖的热线膨胀率较小的优良特性；成品率高，废品率低，传统合格率约96%，本申请的技术方案的合格率在98%以上。
High-quality silica brick for hot blast stove and preparation method of high-quality silica brick
一种热风炉用优质硅砖及其制备方法
ZHENG DESHENG (Autor:in) / DUAN GUIFANG (Autor:in) / LIU PING (Autor:in) / CHEN YAN (Autor:in) / DONG BINBIN (Autor:in) / DU KEXIN (Autor:in) / LI DONG (Autor:in)
16.11.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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