1. Project Overview

WLAL Company lime plant with capacity of 150 tons per day is located in Bhola District, Bangladesh

Lime production line refers to the whole process of active lime production. During all the active lime production process, the rotary kiln production process is the most advanced one. The production process adopt the rotary kiln with the vertical preheater and vertical cooler for the limestone calcinations to achieve the production requirements of energy saving, environmental protection and ensure the high quality lime product. 

Project Engineering Concept：

Through the adoption of most modern technology the new type, energy saving and environmental friendly system, which can reduce fuel consumption 40%, output capacity increased 30% than that of traditional technology. The process flow chart can be quoted below:

This project adopts energy-saving and environmental lime Rotary Kiln which is equipped with advanced Vertical Preheater and Vertical Cooler. This new technology has optimized the traditional production technology. Due to obviously reduction of fuel consumption and emmission of waste gas, as well as application of bag filter and cyclone dust collector for purify the waste gas, the production cost and energy consumption have been effectively reduced.

2. Project Advantages

1. Good quality quick lime with high capacity output 

2. Steably operation and full negative pressure production. Smooth air flow and high level safety.

3. Rotary kiln is simple structure which is easy for operation and maintenance.

4. Low thermal loss for unit product. The vertical preheater can sufficiently utilize the waste gas from rotary klin to preheating the limestone. This can effectively reduce the consumption of fuel.

5. Kiln outlet adopts integration design between veritcal cooler and kiln outlet hood. It has the advantages like less construction land area, good sealing peformance which can effectively avoid emmission of hot waste gas.

6. Good dust collecting system adopts bag filter and cyclone dust collector and the emmission density is less than 50mg/Nm3.

7. Adjusting, control and alarm of production system are centralized controlling at control room by PLC system. High labour efficiency with less workers.