wanhaorefractory

In recent years, with the development of science, based on the consideration of cl ion corrosion gasifier wall, the dew point temperature of gasifier has been raised, and some lining structure and materials have been changed. At present, the new configuration scheme: the refractory lining of the gasifier is mainly divided into four layers from the inside to the outside: the facing surface is chrome aluminum zirconium brick, the back lining brick is chrome steel jade brick, the third layer is changing from the traditional hollow alumina hollow ball brick to the silicon carbide (SiC) brick and the fourth layer is refractory fiber or plastics. By comparison, it can be found that the thermal conductivity of the two materials is quite different, and that the GE company chooses silicon carbide (SiC) brick as thermal insulation brick to ensure higher dew point temperature, so as to reduce the corrosion of furnace wall caused by cl ion and prolong the service life of gas

(1) The vibrating bar must not touch the core and the heat insulating material, so it should be kept at a certain distance from the core and the heat insulating material, but it should not be larger than 50mm. (2) The penetration depth of the vibrating bar shall not touch the underlying castable , but the distance from the lower layer shall not exceed 50 mm. (3) The distance of the insertion point of the vibrating bar should not exceed 200mm, keep the uniform and dense vibration, and slowly lift the vibrating bar when it is pulled out. Do not pull out suddenly to avoid leaving holes. (4) A special person should be in charge of mastering the vibrating rod. If it is found that there are unqualified quality requirements, it should be treated in time to continue construction. (5) Pouring the wall of the package is usually two rounds of material vibration, each feeding thickness is about 250mm, to achieve uniform cloth, and pay attention to uniform vibration,