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This 300t/d active lime production line is a kind of process mainly used for small, medium and large-scale cement plants. - details see: https://www.machineto.com/300t-d-rotary-kiln-active-lime-production-line-cement-plant-10077098

Active Lime Production Line

This 300tpd active lime production line is a kind of process mainly used for small, medium and large-scale cement plants.

It is a complete line that includes vertical preheater, rotary kiln, grate cooler, air treatment system, raw material conveyor system, finished product conveyor system, raw coal grinding system, and so on. DCS central control system is employed to make concentrated operation management.

Process Flow

1. Raw Material Conveying
The 20-40mm limestone on the stock ground is sent to storage silo by the B1000 belt conveyor with large inclination. In the storage silo, qualified limestone with granularity more than 10mm will be sent to the gravel silo, while limestone with particle size less than 10mm will be conveyed to the powder silo.

2. Limestone Calcining
The limestone calcining system is mainly made up of Φ10.5×8.5m vertical preheater, Φ4.0×60m rotary kiln and vertical coolder whose output is 600t/d and heat consumption of 5.75GJ/t. Limestone inside the preheater is heated by high-temperature gases from rotary kiln to 600-800°C, at which temperature limestone can be partly decomposed. Then the limestone will be sent by 12 hydraulic push rods to the kiln end, where it will undergo high-temperature calcination before sent to the vertical cooler. The processed limestone will be cooled down by cold air to 65°C. Air from the vertical cooler enters into the rotary kiln as the second air to take part in calcining process.

3. Finished Product Conveying
The final lime will be sent to the storage bin for final products by NE500 bucket elevator. After screening, qualified lime whose particle size is more than 5mm will be sent to storage for active lime, while powder lime whose size is less than 5mm will be sent to storage bin for powder.

4. Gas Treating
High-temperature gases from rotary kiln will do heat exchange with limestone inside the preheater, and after that, the temperature of these gases will reduce to lower 280°C. Then these gases will be cooled down by multi-tube cooler to 200°C lower. Finally, they enter into the bag filer before discharged into the atmosphere.

Company Introduction

Jiangsu Pengfei Group Co., Ltd covers an area of 350,000m2 and it has 0.82 billion RMB of total assets. It has six subsidiary companies such as the mechanical plant, electronic plant, casting plant, installation plant, the new type building materials plant, etc. Pengfei Group has the ability of supplying 6m rotary kiln, ball mill for cement production line with daily capacity of less than 10000tons, full set of compound fertilizer equipments with annual capacity of 500,000tons and active lime production line with daily capacity of leas than 1000tons.

Our company pursues product quality ceaselessly, cooperates with National Building Material Design Institute, and gradually develops new technology and new product. 11 products has passed the provincial identification, 6pcs products are approved to be national new products, 5 products gained provincial high quality product certificate, 4 products has been awarded high & new technical product certificate as well as 35 patents. Our main products are Pengfei rotary kiln, ball mill, crusher, cooler, conditioning tower, dust filter, vertical kiln, roller mill, dryer, cement mechanical equipments, electrical controlling equipment and so on.

If you are interested in our product, please feel free to contact me.