MER Group is a professional domestic enterprise integrating specialized design, equipment manufacturing, installation‑commissioning, furnace startup and operation‑maintenance across the whole industry. Up to now, we have undertaken nearly 200 energy‑saving rotary‑kiln active‑lime projects of various types.
Product Introduction
The high‑efficiency energy‑saving rotary‑kiln active‑lime (burnt lime) production line adopts the mature process consisting of preheater, rotary kiln and vertical cooler. This technology cuts energy consumption, boosts output and reduces operating costs while delivering outstanding energy‑saving and emission‑reduction performance. It ranks among the premium processes and equipment for uniform calcination of active burnt lime.
Our rotary lime kiln boasts cutting‑edge fuel‑combustion technology. It supports fine‑grained fuel and low‑calorific‑value fuel for effective energy conservation. Container‑style modular construction enables project completion and commissioning within seven months. Civil‑engineering schemes optimized from two‑hundred completed projects help clients slash capital construction costs by 20%. The equipment reserves a 10%‑20% over‑production margin for flexible capacity, bringing comprehensive advantages in cost reduction, shorter construction cycles and higher yield.
The MER Group preheater delivers superior heat‑exchange efficiency. Limestone undergoes pre‑heating and partial decomposition before calcination inside the rotary kiln. Flue‑gas waste heat is fully recycled to raise production capacity. Our domestically‑innovative adjustable‑tube structure for the preheater broadens the acceptable particle‑size range of raw materials.
The MER Group vertical cooler applies advanced uniform cooling‑air distribution technology for high‑efficiency and even heat exchange. Heated secondary air after heat transfer is recycled straight into the rotary kiln.
Self‑developed composite energy‑saving refractory bricks are applied to the rotary‑kiln lining. Compared with conventional fire bricks, they greatly lower shell‑surface temperature and prolong kiln‑lining service life.
Detailed Technical Parameters
(1) Raw‑material particle size: 10‑60 mm
(2) Applicable fuels: gaseous, solid, liquid and mixed fuels with strong fuel adaptability
(3) Available daily‑output specifications: 100‑1600 tons per day
(4) Finished‑lime grade: Grade‑1 metallurgical lime
Main Application Fields
Iron‑and‑steel industry, alumina and magnesia processing, desulfurizer manufacturing
Multiple mineral processing workflows and alkaline additives for chemical procedures
Calcium‑carbide chemical‑engineering sector
