A Vertical Shaft kiln is a stationary production systems in which the raw material like limestone of different particle sizes gets fed into the kiln from the top, where it then flows downhill via the kiln shaft alone due to the force of gravity. This process is known as "drying" the limestone. A chemical event known as dissociation takes place when heat energy in the form of fuel is introduced into the system. This reaction causes the limestone (CaCO3) to be broken down into lime (CaO) and carbon dioxide (CO2).
In spite of the fact that the vertical shaft kiln come in a variety of configurations and sizes and gets utilised in a wide variety of industries (lime, sugar, soda, iron and steel, etc.), one thing that all of these kilns have in common is that the refractory linings inside of them always consist of multiple layers. In most cases, this will include a number of insulating layers, in addition to the worn lining and the permanent lining. In the same vein, a shaft kiln's zones may often be broken down into three distinct categories: the preheating, calcining, and cooling zones.
The Importance Of Refractory Lining
Because the filled shaft kiln generally depicts a column of limestone that rises up to the feeding area and is penetrated by a flow of hot combustion gases, the strains that are placed on the refractory lining are considerably different from those that are placed on the lining of a rotating kiln. Because of the heat transfer that occurs through the various refractory layers as well as the particular temperature limitations of the insulating materials, the insulating layer is often built up using anywhere from one to three layers of insulating material. The shell temperature is going to have to be brought down to a certain maximum value, and the insulating layer's job is to make that happen.
The Permanent Lining
To reduce the temperature on the insulation layer side, and to function as an "emergency liner" if the wear lining fails, the top Vertical Shaft Kiln Manufacturers In India sandwiches the permanent liner between the wear liner and the insulating layer.
The Wear Lining
Because the wear lining is in direct and constant contact with the kiln charge as well as the hot gases, it is necessary for it to have a high level of thermal and chemical resistance in addition to a high level of strength against hot and cold mechanical abrasion. In a shaft kiln, the degree of mechanical adaptability that is necessary for a rotary kiln is of far less significance.
Consult Expert Suppliers!
KINC Mineral Technologies Pvt. Ltd. is the leading Vertical Shaft Kiln Suppliers In India. Our R&D team keenly measures each aspect of these linings and the temperature levels of different materials. We also customise our goods and services as per the needs of our clients. If you want to experience our highly advanced technology, get in contact with us through our website.
