Fe3o4 Sand 0.5-20mm with High Density Gravity for Runway Polishing Grinding

 1. The use of magnetite:
1. As a filter material, magnetite is used as the filter material, which has the characteristics of fast filtration speed, strong pollutant interception ability, and long service life. It also has good effects in removing iron, manganese, fluorine, and other aspects.
Combining magnetite and anthracite filter media with quartz sand filter media in a three-layer filter pool can help extend the service life of the equipment. The main purpose is to purify and treat domestic water, industrial wastewater, etc.
2. Ironmaking, refining pig iron, and refining various types of steel and alloy steel.
The general process for preparing low iron sand is as follows:
1. Raw material preparation: Select high-purity silica or quartz sand as the raw material, crush, wash, and sieve it to remove impurities and coarse particles.
2. Roasting: Place the processed raw materials into an electric furnace or high-temperature furnace for high-temperature roasting treatment to improve the crystalline state and physical and chemical properties of the sand. The calcination temperature is generally between 1200 ºC and 1400 ºC, and the time is about 2-3 hours.
3. Grinding: Grind the roasted sand to achieve uniform particle size for subsequent processing.
4. Iron removal: Use a magnetic separator or high gradient magnetic separator to remove iron ions from the sand, in order to achieve low iron requirements.
5. Grinding: Use a fine grinder or ultrafine grinder to grind the sand after iron removal, with a particle size generally below 5 microns, in order to be applied in high-tech fields.
6. Packaging: The finely ground low iron sand is packaged and encapsulated according to customer requirements to ensure product quality and stability.
It should be noted that environmental protection and safety issues need to be taken into account during the preparation of low iron sand, especially in the dust treatment of roasting and crushing processes. At the same time, strict quality control and testing of raw materials and finished products are also necessary to ensure that the products meet customer needs and standards.Differen sands, have different chemical sheet.