What is the structure of the new mechanical lime shaft kiln
The new mechanical lime shaft kiln, as the core equipment in the lime production field, integrates the concepts of high efficiency, energy conservation, and environmental protection in its structural design.
The new type of mechanical shaft kiln has a vertical cylindrical shape and is composed of multiple layers of composite structures. From the outside to the inside, it consists of a steel shell, insulation layer, and refractory brick lining. The steel shell is welded with high-strength steel plates to ensure the overall strength and sealing of the kiln body; The insulation layer is made of high thermal resistance materials, such as aluminum silicate refractory fiber felt, which effectively reduces heat loss and improves thermal efficiency; The refractory brick lining is made of high-quality refractory materials such as high alumina bricks or magnesia bricks, which have excellent high temperature resistance and corrosion resistance, ensuring the long-term stable operation of the kiln body.
The interior of the kiln is divided into three sections: preheating zone, calcination zone, and cooling zone, formed by an arch bridge structure. Preheating limestone using the rising hot air inside the kiln in the preheating zone; The calcination zone is a key area for the decomposition of limestone to produce calcium oxide and carbon dioxide; The cooling zone achieves the cooling of lime and preheating of air through heat exchange between cold air and high-temperature lime.
The new mechanical lime shaft kiln is also equipped with advanced material distributors, ash discharge machines, and ventilation systems. The fabric feeder ensures even distribution of limestone and fuel, improving calcination efficiency; The ash discharge machine adopts hydraulic drive to achieve continuous and stable discharge; The ventilation system uses variable frequency speed regulating fans to dynamically match the pressure and air volume inside the kiln, ensuring the stability and efficiency of the combustion process. These advanced structures together constitute the core competitiveness of the new mechanical lime shaft kiln.
