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Slag Grinding Production Line
Category: Metallurgical and mining equipment
Project Overview
The slag grinding production line is centered around a vertical roller mill, which grinds the solid waste slag generated during the steel production process into high-value fine slag micro-powder. This solution not only addresses the solid waste treatment issues of steel enterprises but also brings new profit growth opportunities. The slag micro-powder production line mainly consists of several workshops, including raw material storage and conveying, slag grinding, and storage and conveying of the finished powder. The core equipment of the production line is the vertical roller mill, where the drying, grinding, and powder selection processes of the slag are completed.
Working principle
The slag is collected and fed by a loader, and then conveyed through a conveyor belt. During the conveying process, the slag raw material undergoes iron removal and screening through an iron remover and a vibrating screen. It then enters the vertical roller mill for grinding through weighing equipment, silo, and an elevator. After grinding, the slag is dried and selected through a powder selection machine with the assistance of hot air provided by the hot air stove. The slag powder that meets the fineness requirements is finally collected and stored in a dust collector. It is transported to the finished product storage through an air conveying chute and an elevator.
The ore powder from the vertical roller mill is conveyed to the ultrafine ball mill for further grinding by an elevator. At the outlet of the ultrafine ball mill, a dust collector is equipped to collect the dust. The ground material is then sent to a powder selection machine by an elevator for powder selection. The finished ultrafine powder with a specific surface area of ≥650 m²/kg is collected by a powder collector and transported to the finished product elevator through an air chute. Any unqualified fine powder is returned to the inlet of the ultrafine ball mill through the air chute and goes through the grinding process again until it becomes qualified ultrafine powder.
Schematic Diagram of the Mineral Powder Production Line Workflow
Economic Indicators
| Test item | S95 mineral powder | Composite ultrafine powder |
| Specific surface area | ≥400m²/kg | ≥650m²/kg |
| 7-day activity index | ≥70% | ≥80% |
| 28-day activity index | ≥95% | ≥100% |
| Flowability ratio | ≥95% | ≥100% |
Keywords:
Slag Grinding Production Line Metallurgical and mining equipment
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