From what we have talked about the rotary kiln, I consider that most of you may all know something about the rotary kiln, such as its history, its vital functions and so on. But do you want to know something about all kinds of clinker calcining process in rotary kiln?
Since there are many kinds of clinkers, today we will introduce four main kinds of them now. They are as follows:
1. All long wet method kiln clinker calcining process is conducted in the rotary kiln to accumulation state.
2. Set the Bohr kiln and cyclone pre-heater kiln, raw preheat and about 30% ~ 50% of the carbonate decomposition, moved to the heating machine or outside the furnace grate type cyclone preheater system, under the state of suspension.
3. The preparing calcining kiln, on the basis of the original cyclone pre-heater kiln calcine added the second heat source, the heat consumption for the most part the biggest carbonate decomposition process in preheating system, into the soil of decomposition rate can reach more than 90%, thus greatly improves the kiln system in heat and production efficiency.
4. The short type research and development of preparing calcining kiln is in order to further optimize the production.Its guiding ideology and basis is: as the carbonate components in raw materials have been finished more than 90% in preheating decomposition system task decomposition, task for only a very small amounts of carbonate decomposition furnace.Thermal belt at the same time, the stove limited within the flame radiation area, so the general L/D larger kiln, decompose the task has been completed the material within the transition zone in 900 ~ 1300 ℃ even stay too long, so that delayed the heating process of the material, which leads to the following phenomenon.1) C2S and CaO mineral grew up, at the beginning of the decomposition of active variation;(2) and at this point, there is no enough heat to heat rapidly, which hindered the knot and sintering of clinker;(3) the...