Main technical characteristics of 400tpd new type lime kiln

This type lime kilns is single-shaft vertical kiln and structure simple, compared to other kiln-type, this kiln has easy to construction convenient, masonry simple characteristic. Mixing system uses a special mixing system, so that stone and fuel mixed evenly, is conducive to the uniform calcination of lime. Fabric with rotary distributor, so that the layout of stone in the kiln is very uniform, cross-section point of the kiln is same resistance, calcination stability. The air supply system is equipped with high-pressure centrifugal fan plus computer simulation probability hood for wind, so that the air volume in the furnace can be equalized and evenly, thus the furnace burns more fully and evenly, effectively solve the phenomenon of lime less burning and over burning to achieve energy-saving purposes. Lime stable product quality, high activity, are fully able to meet the calcium carbide, steel, sintering, light calcium carbonate and other industries use requirements. The grey system uses a disk ash hoist and two-stage sealing valve ash hoist combination of the way, lock the wind performance is ideal. Feeding, ingredients, air supplier, gas supplier, unloading ash are completed through computer automation. Equipment is simple, flexible operation, small footprint, investment relative to other kiln-type this type kiln is low investment

Kiln structure features:
1) The kiln is round, the effective height is about 22.0 meters, the effective diameter is 5.4 meters. Outermost layer of kiln is the steel structure ,and built insulation material inside of the kiln. In the kiln body preheat zone, calcined belt, are installed thermocouple cooling zone, were measured in different regions of the kiln temperature, in time to adjust. In the bottom of the kiln installed the kiln bottom device, the kiln bottom device computer simulation of the wind cap for the wind to ensure that the combustion air in the kiln cross section uniform into the; also installed disc unloading machine to ensure that the kiln finished lime uniform discharge.
2) Furnace operation configuration PLC control operating system. The new energy-saving and environmental protection intelligent mixing kiln system adopts advanced frequency conversion technology, and adopts the combination of upper computer and PLC control operating system. To achieve from the mixing, feeding, calcination, a fully automated way to ash, greatly reducing the labor intensity, improve the quality of lime calcination.

New energy-saving environmental protection intelligent kiln firing calcining principle:

Multifuel burner type vertical kiln calcination principle is based on the solid fuel (coke or anthracite) and qualified stone uniform mixing, through the top of the rotary kiln distributor cloth into the kiln, the mixture in the role of its own gravity in turn by preheating belt, calcined belt, cooling zone, and finally fired into a qualified finished lime. In the calcination zone, coke or anthracite in the preheated mixture and secondary cooling air from the cooled lime coming from the bottom of the kiln generate heat and the firing zone is uniformly heated to a temperature of 1100 to 1250 ° C to complete the calcination of the lime. Due to increase auxiliary combustion air duct to ensure that each point temperature is very uniform, so also ensure the kiln body temperature uniformity.