The lattice bricks in hot blast stove are made of high temperature and chromium resistant cast iron RTCr2. The maximum exhaust gas temperature is allowed to reach 450 C and the average exhaust gas temperature is 345 C. The exhaust gas temperature increases, increasing the storage capacity of the middle and lower checker bricks, thereby enhancing the air temperature. The structure of the precombustion chamber prevents the flame from directly contacting with the refractory masonry, and the temperature of the precombustion chamber does not exceed 900 C, which has no direct influence on the refractory bricks and local overheating. The service life of the whole hot blast stove is only determined by the service life of the silicon brick vault, which is expected to reach 20-30a. This provides a uniform and symmetrical distribution of the temperature of the vault, the lattice brick, the refractory lining and the shell, reduces the temperature stress and greatly enhances the stability of the hot blast stove. 采用低压脉冲式布袋除尘净化煤气工艺，减少了耐火砖的化学侵蚀，可确保格子砖使用寿命。拱顶、预燃室球顶炉壳内表面喷涂80mm厚的耐酸喷涂料，在高温作用下，喷涂料与钢壳结成一体，有保护钢壳和绝热的双重作用，既减少了热损失，又提高了热效率。
The low-pressure pulse bag dust removal process is adopted to purify gas, which reduces the chemical erosion of refractory bricks and ensures the service life of lattice bricks. The inner surface of dome and spherical top furnace shell of precombustion chamber is sprayed with 80 mm thick acid-resistant spraying coating. Under the action of high temperature, the spraying coating is integrated with steel shell, which has the dual function of protecting steel shell and adiabating heat. It not only reduces heat loss, but also improves heat efficiency.
Reasonable air supply time and working cycle, make full use of effective heat storage, strengthen the heat exchange between the middle and lower parts, and reduce the heat fluctuation in the high temperature part of the hot blast stove. It not only prolongs the life of refractories, but also reduces the difference between wind and temperature, and improves the actual air supply temperature.
标签:   环氧地坪 地坪 环氧地坪漆 环氧地坪施工 热风炉