利索-全球专利检索

  1. 登录
  2. 注册
发明公开
CN106278297A 石油焦罐式煅烧炉用耐硫侵蚀硅砖及其制备方法 无效 - 驳回

石油焦罐式煅烧炉用耐硫侵蚀硅砖及其制备方法
摘要：
本发明涉及一种耐硫侵蚀硅砖，尤其涉及一种石油焦罐式煅烧炉用的耐硫侵蚀硅砖及其制备方法，该类硅砖的应用可提高石油焦罐式煅烧炉的使用寿命。包括：25~35 wt%粗硅石粉，10~15wt%中硅石粉，30~40 wt%细硅石粉，10~20 wt%超细硅石粉，1~3 wt%矿化剂，上述组份总重量2~6wt%的亚硫酸纸浆废液。本发明的优点效果：本发明采用10~20 wt%的超细硅石粉，可降低硅砖成品的气孔率至16~17%，砖体致密性的提高有利于硅砖在罐式煅烧石油焦使用中抵抗含硫侵蚀气体向硅砖内部的扩散，提高耐硫侵蚀能力。
摘要（英）：

The invention relates to a sulfur corrosion tolerant silica brick, in particular to a sulfur corrosion tolerant silica brick for a petroleum coke pot calcinator and a preparation method thereof. Due to application of the silica brick, the service life of the petroleum coke pot calcinator can be prolonged. The sulfur corrosion tolerant silica brick is prepared from 25-35 wt% of crude silicon powder, 10-15% of medium silicon powder, 30-40 wt% of fine silicon powder, 10-20 wt% of superfine silicon powder, 1-3 wt% of a mineralizer, and waste sulphurous acid pulp accounting for 2-6 wt% the total weight of all the other components. The sulfur corrosion tolerant silica brick has the advantages that the 10-20 wt% superfine silicon powder is adopted, the gas hole ratio of the finished silica brick can be lowered to 16-17%, due to the fact that the compactness of the brick body is improved, sulfur-containing corrosive gas can be prevented from being dispersed into the silica brick when the silica gel is used in pot calcination petroleum coke, and the sulfur corrosion resistance can be improved.

0/0