Quicklime / Active Lime Rotary Kiln 220V 380V 415V Model Available

Product Specification

Chinese manufacturer factory price quicklime active lime rotary kiln

Description:

    Rotary kiln: commonly known as white ash rotary kiln and lime rotary kiln are the key equipments in the limestone production process of the building materials industry. The main function is to calcine the raw materials with high calcium carbonate content such as limestone, dolomite, chalk and shells. . The rotary kiln has advanced structure, and the vertical preheater with low pressure loss can effectively improve the preheating effect. After preheating, the limestone can be calcined at 900~1100 °C, and the decomposition rate can reach 20-25%, and the efficiency is higher. The sealing system at both ends can make the rotary kiln air leakage coefficient less than 10%, effectively reducing the loss of thermal energy; the cooler located at the outlet of the rotary kiln can control the lime temperature at 800 ° C for transportation and storage. The limestone is heated in the preheater by the high temperature kiln flue gas to 900 ° C, about 30% decomposition, pushed into the lime rotary kiln through the hydraulic rod, the limestone is sintered into CaO and CO2 in the kiln, and the decomposed limestone enters. In the cooler. In the cooler, the active lime is cooled by the blasted cooling air to below 100 °C. In order to achieve such temperature under actual conditions, the air volume and wind pressure of the cooling fan must be mastered without affecting the shaker roasting process. The cooling effect is in place.

Parameter:

Working principle:

    Qualified limestone is stored in the silo, lifted by the hoist and transported to the top of the preheater silo. At the top of the preheater, the feed amount is controlled by two upper and lower level gauges, and then the limestone is evenly distributed to each chamber of the preheater through the discharge pipe. The limestone is heated by the kiln flue gas at 1150 °C to about 900 °C in the preheater, about 30% decomposition, pushed into the rotary kiln by hydraulic push rod, and the limestone is decomposed into CaO and CO2 by sintering in the rotary kiln. The limestone formed after decomposition enters the cooler, and the cold air that is blown in the cooler is cooled to 100 ° C and discharged. The heat exchanged 600 ° C hot air enters the kiln and gas mixed combustion. The exhaust gas enters the bag filter through the induced draft fan, and then enters the chimney through the exhaust fan. The lime of the cooler is sent to the lime product warehouse through the vibrating feeder, the bucket conveyor, the bucket elevator, and the belt conveyor, and whether the screening process is performed according to the customer's requirements.
    The lime rotary kiln has advanced technology and simple structure. The low pressure loss preheater can effectively improve the preheating effect. The precalcined limestone kiln decomposition rate can reach 20-25%, effectively improving the output of the rotary kiln and reducing The heat consumption. It can be directly calcined with 20-60mm fine-grained limestone. In addition to the conventional process line, it is equipped with a high-end configuration six-head preheater, eight pusher preheater, ten pusher preheater, and twelve pusher preheater.

Feature:

● Advanced structure, low pressure loss vertical preheater can effectively improve the preheating effect, the precalcined limestone into the kiln decomposition rate can reach 20-25%, and can directly use 10-15mm fine-grained limestone;
● Reliable rotary kiln with combined scale seals at both ends. Use a composite refractory material with a leakage coefficient of less than 10% to reduce radiant heat loss;
● Filled, partitionable ventilated circular or square vertical cooler, the lime temperature of the cooler is 800 °C + ambient temperature, easy to transport, store, and preheat the secondary air into the kiln to above 700 °C , the reduction of moving parts and special materials, to achieve the purpose of secondary reuse of thermal energy.

Packing & Delivery: