The roles of cement clinker cooler

1. On the function of grinding performance of clinker
First of all, clinker cooler is better, which emphasizes on the rapid cooling of high-temperature section. 1300 ℃ -1350 ℃ high temperature clinker is made cooling in a very short period of time, clinker in the small crystals cannot mature, and crystal cracks arise . So that the following procedure can greatly improve the grindability of cement grinding, early strength of cement and other quality become more excellent. The cooling efficiency depends on the gas-solid temperature gradient value. After the gas-solid two-phase forced exchange in the high temperature section, the temperature of the secondary air and the tertiary air is greatly increased, which in turn conveys a large amount of high-temperature gas for the kiln and the decomposition furnace, so the ambient temperature in the kiln and the ambient temperature higher, the formation of cooling → high-intensity forced gas-solid exchange → to provide a virtuous cycle of high-temperature gas furnace interaction.

2. On the role of the decomposition furnace
Decomposition furnace is the dark fire burning without open flame. The furnace ambient temperature determines the intensity of the combustion. The higher the ambient temperature, the faster the burning rate of coal powder, the higher the burning rate of pulverized coal. The higher the temperature, the more dense the air density, the smaller the resistance, the higher the rate of decomposition of materials. So the cooling machine is the burning power of the decomposition furnace. The higher the tertiary air temperature provided by the cooler to the calciner, the faster the pulverized coal burns and the shorter the burning time. The decomposition furnace is always in a benign and efficient state. The higher the decomposition rate is, the greater the output and the lower the unit energy consumption.

3. The setting temperature of the clinker from the kiln mouth down to 1300 ° C. The zone of the grate bed of high-temperature, middle-temperature and low-temperature is 600 ℃, 300 ℃ and 150 ℃ respectively. At the same time , its production, secondary cooling machine for normal operation of the wind into the kiln temperature, three times into the wind temperature of decomposing furnace, waste heat power generation coal gas temperature, drying air temperature, clinker cooling temperature, air velocity and temperature, machine operation rate, should be equal consideration. Too much emphasis on an index, while ignoring other indices is unscientific.