Limestone is a hydraulic pusher by transport chute, limestone into the rotary kiln decomposition of place in the lime calcining system, preheater preheating chamber is divided into several different phases at different output consistent with a hydraulic pusher device and equipped with an automatic control system, the relevant data to PLC control platform to achieve centralized control of the central control room of each warm-up room. high degree of automation of the system ,so that a single point of control to improve the safety and efficiency of production processes , make the production process more humane and intelligent , so that the production process more convenient.
The
limestone rotary kiln, also called lime pit or lim rotary kiln is used for roasting active lime in steel works and ferroalloy plants and light roasting dolomite. Lime kiln technical characteristics are as follows:
1. Filling type, partition ventilation round or square shaft cooler, lime out of the cooler temperature is 800℃ + environment temperature, to facilitate delivery, storage and secondary air into the kiln can be preheated to 7000℃ above, reduce the moving parts and special material.
2. Advanced structure, low pressure loss of vertical preheater can effectively improve the effect of preheating, after preheating of limestone the decomposition rate of 20-25%, can be directly used to fine limestone in 10 to 15 mm;
3. Reliable lime pit combined scales sealed at both ends. The air leakage coefficient is less than 10%, using complex refractory material, in order to reduce heat loss.
Lime kiln at work shock strength is relatively large, so in the selection of grease, it is necessary to select high viscosity, good adhesion, good damping properties of grease. Rotary lime kiln so that it will not affect the vibrating force powerful grease use of time and the results. So that because lime kiln strong dynamic, it can not affect the grease's usage time and usage effect. Lime kiln grease usage purpose is different,it need according to different usage purpose to use grease. under the condition of sealing, using grease should consider whether the grease can use toghter with sealing medium,and consider its economic applicability. Under the condition of lubricating effect,reduce grease variety as far as possible,thus can reduce the production cost as far as possible.
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