The Effect of Cement Silo Cooling System

In the system of cement clinker sintering, silo cooling system plays three major functions of clinker cooling, gas-solid heat exchange and clinker conveying. The cement silo cooling system has nearly ten kinds of types, single cylinder, multi cylinder and grate cooler are adopted in the modern NSP sintering system.
Firstly, choose a good cement silo cooling system, and function of high temperature quenching should be emphasized. Clinker with 1300-1350℃ can cool rapidly in a very short period of time, which lead to that the small crystals in the clinker can not mature and the produce crystal crack. This can make the follow-up process, cement grinding ability greatly improve, the early strength of cement and other quality can be better. The cooling efficiency depends on the temperature difference between the gas and solid two phases. After the forced exchange of gas-solid at high temperature, the second and third air temperature increase significantly, in turn, a large number of high temperature gases are transported in the kiln and the furnace to make the environment temperature and decomposition furnace temperature be higher, a virtuous cycle of cooling → high-efficiency forced gas-solid exchange → provide high temperature gas furnace.
The cement silo cooling system also has a role to decomposition furnace. There is dark fire instead of open flame in the furnace. The ambient temperature in the furnace determines the intensity of combustion. The higher the temperature, the faster the combustion of pulverized coal; the higher coal burning rate. the higher temperature; the lower the air density, the smaller the resistance and the higher the decomposition rate of the material, so the cooling machine is the burning power source of the decomposing furnace. The higher tertiary air temperature provided decomposing furnace by cooling machine, the more quick pulverized coal combustion and the shorter time burnout, Decomposition furnace is always in a efficient state, the higher the decomposition rate, the greater the output and the lower the unit energy consumption.
Temperature of clinker from the kiln is set to 1300. Grate bed temperature, medium temperature, low temperature values are 600℃, 300℃and 150℃. The yield of cement silo cooling system when normally operate, the temperature of second wind into the kiln, tertiary air temperature into a decomposition furnace, waste heat power generation with air temperature, air coal drying temperature, clinker cooling temperature, air volume and temperature, machine operation rate should equal consideration. Emphasising on a certain index too much, while ignoring other indices is not scientific.