Operation Skills about the Decomposition Kiln

what is decomposition kiln ?what are the special features and application of decomposition kiln ? Understand gradually some operating issues and skills focusing on the equipments features will contribute to the enhancement of the management level, and also directly helps to the improvement of product quality and cost savings. There are many matters  in this section,we  only listed the following three aspects:
● Narrow the calciner temperature control range Calciner is the core part of the pre-kiln, there are about 60% of the fuel in the combustion, so the apparent decomposition rate can achieve to 85-95% in the rotary kiln . While controlling the  material optimum temperature , we also need to consider the  CaCO3 decomposition rate and the temperature requirements of the fuel low-temperature combustion speed  , under the premise that meeting the above two requirements, the temperature should be kept as low as possible in order to reduce heat loss, so the temperature range should be narrow, generally controlled in a range of plus or minus 20 degrees.
● Furnace plus the maximum amount of coal is limited Due to the wind range in the precalcining kiln, the aggregate amount of the air volume are narrow, and the moment of its kiln feed upper limit of the coal amount  is limited by the wind amount , otherwise,  the incomplete combustion will occur . The calciner instantaneous feed coal quantity is also affected by the constraints of the set temperature.
● Best hrs capacity and instantaneous feeding amount are also limited in a narrow range only when the reasonable amount of ventilation is determined,  the maximum fuel feed rate is  also limited, and also define the best station capacity and feeding amount. Therefore, when the amount of ventilation should be controlled within the reasonable limits, if the feeding amount is large, whether  how much fuel are add, the oxygen is lacked,the heating capacity can not meet the needs of  feeding amount increased,  the qualified products can not be obtained. But if the Feeding amount is less than the reasonable range, the low yield kg of clinker increase in the amount of exhaust gas, exhaust gas heat does not have enough raw material to absorb a barrel outlet temperature combustion gas furnace heat source equipment, such as the supply of fresh air increases after the exhaust away heat , so the yield is low, kg the clinker surface of dissipated heat increases, feeding amount is less than the reasonable range, there will result the consequences of low-yield, high heat consumption, thermal system instability, poor quality  .