Active Lime Production Line EPC Project
Active Lime Production Line Description:
This active lime production line 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.
Active Lime Production Line Process:
1. Raw Material Conveying:
The 20-40mm limestone on the stock ground is sent to storage silo
by the belt conveyor with large inclination. In the storage silo,
qualified limestone with granularity be sent to the gravel silo,
while limestone with particle size less than 10mm will be conveyed
to the powder silo.
2. Limestone Calcining:
Preheater is heated by high-temperature gases from rotary kiln to
600-800℃, at which temperature limestone can be partly decomposed.
Then the limestone will be sent 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℃.
3. Finished Product Conveying:
The final lime will be sent to the storage bin for final products
by bucket elevator. After screening, qualified lime whose particle
size will be sent to storage for active lime.
4. Waste 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℃. Then these gases will b
e cooled down by multi-tube cooler to 200℃ lower. Finally, they
enter into the bag filer before discharged into the atmosphere.
Active Lime Production Line Main Machines:
| No. | Name |
| 1 | Rotary kiln |
| 2 | Vertical preheater |
| 3 | Vertical cooler |
| 4 | Multi-tube cooler |
| 5 | High-temperature vapor extractor |
| 6 | Coal grinding system |
| 7 | Coal combustion system |
| 8 |
| 8.1 | Dust collector of kiln end |
| 8.2 | Dust collector of coal grinder |
| 8.3 | Dust collector of cooler |
| 8.4 | Dust collector for final product screening |
| 9 |
| 9.1 | Bucket elevator |
| 9.2 | Round vibrating screen |
| 9.2 | Round vibrating screen |
| 9.4 | Chain conveyor |
| 9.5 | Belt conveyor |
| 10 |
| 10.1 | Axial flow fan |
| 10.2 | Centrifugal fan |
| 10.3 | Fan for coal mill |
| 10.4 | Roots blower |
