300,000~350,000 T/Y Water-quenched Slag Micro-powder Production Line in Shandong
Core Equipment：CRLM Vertical Mill
Processed Materials：Water Slag（≤30mm）
Production Output：50~65t/h
Powder Fineness：325 mesh（S95）
The slag micropowder production line designed by Cronus Machinery delivers significant energy-saving benefits while fully complying with environmental emission standards. The CRLM Vertical Mill performs excellently, integrating drying, grinding, and classification into a single unit. This collaboration has been highly successful.
—— Cronus Machine Customer
Project Overview
A large steel group in Shandong, committed to advancing the national "Zero-Waste City" and circular economy strategies, decided to invest in building a large-scale water-quenched slag micro-powder production line. The core project requirement is to stably produce S95 grade water-quenched slag micro-powder compliant with the national standard (GB/T 18046), fully replacing cement clinker. Following rigorous technical and economic analysis, the client ultimately selected Cronus Machinery, adopting the CRLM Vertical Mill which integrates efficient drying with powerful grinding.
Project Details
Water-Quenched Slag Raw Material Silo → Belt Feeder → Vertical Mill
Wet water-quenched slag stored in the raw material silo is precisely and continuously fed into the CRLM Vertical Mill via the belt feeder for grinding and pulverization. The vertical mill is equipped with an integrated hot air system that utilizes waste heat from kilns and hot air from the auxiliary hot air furnace to simultaneously dry the water-quenched slag during the grinding process.
Dust Collection System → Water-Quenched Slag Micro-powder
The dried and ground water-quenched slag powder rises with the airflow to the classifier at the top of the mill. Through variable-frequency speed control, the separation intensity is precisely regulated. Coarse water-quenched slag particles that do not meet the 325 mesh (S95) requirement are separated and fall back onto the grinding table for re-grinding. Qualified water-quenched slag micro-powder is then carried with the airflow into the dust collection system, where it is separated and collected.
Equipment Name | Function Description |
Belt Feeder | Feeds material into the vertical mill uniformly, continuously, and precisely |
CRLM Vertical Mill | Grinds water-quenched slag material (≤30mm) into 325 mesh (S95) water-quenched slag micro-powder |
Dust Collection System | Separates and collects water-quenched slag micro-powder and purifies excess dust |
Project Advantages
High Efficiency and Energy Saving: The CRLM Vertical Mill directly utilizes kiln waste heat to achieve simultaneous drying and grinding of high-moisture water-quenched slag, saving approximately 25%~30% energy compared to the traditional "dry first, then grind" process.
Stable and High Yield: The CRLM Vertical Mill possesses powerful large-scale processing capability, enabling rapid handling of water-quenched slag generated by the steel plant.
Excellent Product Quality: The finished water-quenched slag micro-powder stably achieves 325 mesh, with key indicators such as specific surface area meeting S95 grade and higher standards. The powder exhibits high activity.
Green and Eco-Friendly: The entire production process is free from wastewater and exhaust gas pollution, truly transforming industrial solid waste (water-quenched slag) into green building materials.
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