The light weight wear resistant brick for cement kiln

The heat loss from the surface of the cement kiln system includes preheaters, rotary kiln and chillers. Among them, the heat loss of rotary kiln accounts for more than 50% of the total heat loss. Therefore, the development and development of new energy-saving bricks for rotary kiln is especially important for energy saving in the cement industry. The new energy-saving refractory material is mainly made of lightweight aggregate and light pore-forming agent. It is made of lightweight wear-resistant brick. It reduces the thermal conductivity of refractory by reducing the density of the material and increasing the porosity of the material. the goal of. This lightweight wear-resistant brick is mainly used in the decomposition zone of rotary kiln.
Lightweight wear-resistant bricks are used in cement return kiln such as the last 10-15m of kiln, for 4.8m×74m 5000 ton grade cement for general use 56.2m-73.2m, for 4.0mX60m 2500t grade cement kiln For locations from 45.9m to 59.1m
Lightweight wear resistant bricks have lower thermal conductivity and lower bulk density. The load softening temperature and compressive strength are also reduced, but it does not affect the use of lightweight wear-resistant bricks, because in this interval, the heat load of the material is small, the solid material is washed and worn lightly, so the refractory configuration On the top, the main consideration is the ability to resist alkali corrosion.

Through the practical application of lightweight wear-resistant bricks in the rotary kiln, the thermal insulation effect is better. The wind speed of the kiln is 2.5m/s. When the outdoor average temperature is 25, the simplified temperature of the lightweight wear-resistant brick is used. For 247, the simplified surface temperature of using silicon germanium brick is 289. Fuyang South Cement Co., Ltd. has a daily production capacity of 5,000 tons of clinker wire. By using lightweight wear-resistant brick, the temperature is reduced by nearly 42 degrees, and the daily heat saving is 9010904.7 kcal. It can save 390 tons of standard coal.