Process description: qualified limestone in the bunker, controlled by the upper and lower two material level meter and shoes, and then by tremie pipe to limestone evenly distributed to the preheater each room.

limestone was 1150 degrees Celsius in preheater kiln flue gas heated to 900 degrees Celsius, about 30% of decomposition, the hydraulic push rod is pushed into the rotary kiln, Canon of roasting limestone in rotary kiln is decomposed into CaO and CO2. Decomposed to generate lime into the cooler, is blowing in the cooler air cooled to below 100 degrees Celsius.
By the heat of 600 degrees Celsius hot air into the kiln and the gas fuel mix. Exhaust gas again against the cold wind by induced draft fan into the bag filter, then through the exhaust fan into the chimney. Out of the cooler lime by vibrating feeder, bucket conveyor, bucket elevator, belt conveyor into the lime storage library. According to user needs to determine whether screening grading process.

In the lime roasting system, preheater according to different production is divided into several preheating chamber, each preheating chamber is equipped with a hydraulic device, with automatic control system is controlled to transfer data to the PLC control platform, to realize centralized control. High degree of automation, the system can be applied to a single point of control, make the production process more convenient.
Companies pay attention to system balance, on craft in such aspects as system air leakage is improved, the ratio of material and fuel is more reasonable, reduce the fuel energy loss, save investment.
From:limestone
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