Limestone rotary kiln production line pictures

The working process of the lime rotary kiln is that the qualified limestone after treatment is stored in the silo, lifted by the elevator and transported into the top silo of the preheater. In the top silo of the preheater, the feeding amount is controlled by two upper and lower material level meters, and then the limestone is evenly distributed into each chamber of the preheater through the discharge pipe.

The limestone is heated to about 900°C by the kiln flue gas at 1150°C in the preheater. About 30% of the limestone is decomposed. It is pushed into the lime rotary kiln through the hydraulic push rod. The limestone is sintered and decomposed into CaO and CO2 in the rotary kiln. The limestone generated after decomposition enters the cooler, where it is cooled by the cold air blown into the cooler to below 100°C and discharged. The heat-exchanged 600°C hot air enters the kiln and is mixed with gas for combustion. The exhaust gas is mixed with cold air and enters the bag dust collector through the induced draft fan, and then enters the chimney through the exhaust fan.

The lime coming out of the cooler is sent to the finished lime product warehouse via a vibrating feeder, chain bucket conveyor, bucket elevator, and belt conveyor. Whether to carry out screening and other processes according to customer requirements.

Lime rotary kiln refers to a rotating calcining kiln (commonly known as a rotary kiln), which is a dynamic calcining mode and belongs to the category of building materials equipment. Its main advantages include large production capacity, no noise during operation, and low overall energy consumption. As the main processing equipment for processing lime, it has very high industrial utilization value, so its current demand is very high. The uses of lime are very wide. Commonly used in many fields such as construction, building materials, metallurgy, chemical industry, light industry, environmental protection, medicine and agriculture. Especially in steelmaking, ironmaking, sintering, copper, aluminum smelting and other industries, lime plays a very important role as a slagging agent, dissolving agent or sintering material.