Activated lime rotary kiln refers to the rotary calcined kiln (commonly known as rotary kiln), is a dynamic calcination mode, belonging to building materials equipment category. Activated lime rotary kiln calcined active lime is mainly used
Activated lime rotary kiln refers to the rotary calcined kiln (commonly known as rotary kiln), is a dynamic calcination mode, belonging to building materials equipment category. Activated lime rotary kiln calcined active lime is mainly used for building materials, steel plants, power plants, calcium carbide plants, paper mills and other desulfurization projects.
The active lime kiln is a kind of rotary kiln which is the main equipment for calcining the active lime. The equipment consists of the cylinder body, the supporting device, the hydraulic wheel support device, the transmission device, the lubrication device and the kiln seal device. Rotary kiln has a simple structure, reliable operation, the production process to facilitate automatic control. The production line includes vertical multi-box preheater to reduce energy consumption by 30%. The rotary kiln is sealed with fish scales so that the utilization efficiency of the rotary kiln is 85%. The cooling system uses the vertical cooling machine to make the finished product waste heat 85% effective, Cutting, finished ash powder rate reduced by 90%.
At present, the successful development of our company's production lines include Nissan 300 tons [3.2x52 meters rotary kiln], 400 tons [3.6x56 meters rotary kiln], 500 tons [3.8x60 meters rotary kiln], 600 tons [4.0x60 meters rotary kiln], 800 Ton [4.3x66 meters rotary kiln.
Qualified limestone is stored in the silo, lifted by the hoist and transported to the top of the preheater. Preheater top silo, from the upper and lower 2 level meter to control the amount of feeding, and then through the pipe to the limestone evenly distributed to the preheater of the various indoor. Limestone in the preheater is 1150 ° C kiln smoke heated to about 900 ° C, about 30% decomposition, the hydraulic putter into the rotary kiln, limestone in the rotary kiln by sintering into CaO and CO2. The limestone formed after the decomposition is cooled into the cooler, and the cold air sucked into the cooler is cooled to about 100 ° C. The heat exchange of 600 ° C hot air into the kiln and gas mixture combustion. Exhaust gas in the cold into the wind through the fan into the bag filter, and then into the chimney by the exhaust fan. The cooler of the lime by the vibration feeder, chain bucket conveyor, bucket elevator, tape conveyor into the lime finished product library. According to customer requirements whether the screening process.
Lime rotary kiln technology advanced technology, simple structure, low pressure loss of the preheater can effectively improve the preheating effect, the preheated limestone into the kiln decomposition rate of up to 20-25%, effectively improve the rotary kiln production, The heat consumption. And can be directly used 20-60mm fine-grained limestone calcined. Reliable rotary kiln at both ends of the combination of scaly seal. So that the air leakage coefficient of less than 10%, the use of composite refractories to reduce the loss of radiant heat. Filled, can be divided into a circular or square vertical cooler, so that the cooler of the lime temperature of 80 ℃ + ambient temperature, easy to transport, storage, and can be into the kiln secondary air preheat to 700 ℃ or more, Make full use of waste heat, save energy consumption. Conventional process production line, but also equipped with high-end configuration six push head preheater, eight push head preheater, ten push head preheater, twelve push head preheater.
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