After overcoming the defects of easy vibration and wear, the vertical mill has gradually become the main force in the processing of slag powder. The specific surface area of the processed slag powder is 420-450m2/kg, which greatly meets the needs of customers. The vertical mill of Hongxing Machinery Technology integrates drying, grinding, powder selection and lifting, adopts reasonable and reliable structural design, and cooperates with advanced technological processes, and has completely conquered tens of millions of customers in the slag micro-powder market.

Let the vertical mill engineer give you a brief introduction to the processing process of slag grinding.

1. Determination of scale and basic parameters, including wet slag moisture, feed particle size, mill output, etc.

2. Host equipment, output and power of vertical mill, air volume of dust collector, etc.

3. Material storage

Wet slag: Generally, the belt conveyor is used to directly send the wet slag from the slag yard to the wet slag bin in the factory area. The wet slag bin should not be too large. Generally, the storage capacity is required to be sufficient for 4 to 8 hours to prevent wet slag from being used for a long time. Caking, causing blockage. In addition, the wet slag should not be conveyed by the elevator, in case of sticking in the hopper, resulting in a decrease in the conveying capacity.

Slag powder: When the source of slag is single and the quality is stable, one homogenization warehouse can be built; when there are many sources, two homogenization warehouses need to be built to ensure stable product quality.

4. Bulk and packaging

Since slag powder is directly used in concrete mixing plants, it is generally transported in bulk by train, car, or ship. If it is really necessary to use packaging bags, it must also be packaged in large bags (tons of packaging), rather than small bags, to reduce costs.

5. System iron removal

The vertical mill adopts external circulation, so it is more convenient to remove iron. Electromagnetic iron remover should be added in the mill, the feeding belt conveyor and the coarse powder feeding mill to reduce the iron content of the feeding material and reduce wear.