Raymond grinding mill processes fluorite

• Publication time：2025-07-14
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Abstract

The Raymond mill can efficiently grind fluorite into fine powder with a fineness of 80 - 400 mesh. Its process covers crushing, drying, grinding, classification, and environmental - friendly collection. It has the characteristics of energy - saving, high - efficiency, and adjustable fineness. In actual operation, attention should be paid to equipment selection, anti - adhesion, safety protection against hydrogen fluoride leakage, etc., and worn parts should be replaced regularly to ensure production efficiency and safety.

What is Fluorite?

Fluorite, also known as fluorspar, has calcium fluoride (CaF₂) as its main component. It comes in a rich variety of colors, including purple, green, blue, yellow, and colorless. It is colorful due to impurities such as rare earths and iron. Its Mohs hardness is 4.

Applications of Fluorite Powder

Metallurgical Field: With a fineness of 80 - 200 mesh, it lowers the melting point of slag in steelmaking and removes impurities such as sulfur and phosphorus. In the smelting of aluminum alloys, it improves casting performance.

Chemical Industry Field: With a fineness of 200 - 400 mesh, it is a key raw material for preparing hydrofluoric acid. It is used to manufacture fluorine refrigerants, fluoropolymers, etc., and can also produce other fluorine salts, which are applied in fields such as ceramics and glass.

Building Materials Field: When added to ceramics, it reduces the firing temperature and improves the glaze luster and wear resistance. In glass manufacturing, it serves as a flux and clarifying agent, improving production efficiency and glass quality.

Process Flow of Fluorite Processing by Raymond Mill

The Raymond mill can grind fluorite into fine powder with a fineness of 80 - 400 mesh, meeting the needs of multiple industries. It adopts the principle of rolling and crushing between the grinding roller and the grinding ring, is energy - saving and efficient, makes full use of energy, and has a low cost.

Raw Material Pretreatment: After the fluorite ore is mined, it needs pretreatment. In the crushing process, a jaw crusher or hammer crusher is used to crush large - sized ore into particles ≤ 30mm. If the moisture content exceeds 5%, a drum dryer is used for drying to prevent the material from adhering to the equipment during powder grinding.

Grinding Operation: The pretreated fluorite enters the Raymond mill. The main machine drives the grinding roller to revolve and rotate. The shovel blade shovels and throws the material between the grinding roller and the grinding ring for crushing. The classifier controls the fineness of the finished product. Increasing the rotation speed can obtain finer powder. The blower provides wind power, and the cyclone collector and pulse dust collector collect the powder and carry out environmental - friendly treatment.

Finished Product Collection: The ground and classified powder first passes through a cyclone separator, which separates it using centrifugal force and air flow. Then it enters a bag - type dust collector, where the filter bag intercepts fine powder. Finally, it is packaged and used in fields such as fluorine chemical industry and metallurgical flux.

Key Points of Fluorite Processing by Raymond Mill

Model Selection: For small - to - medium - scale production, the 4R model is selected, with a production capacity of 1 - 5t/h and a fineness of 80 - 325 mesh. For large - scale production, the 5R model is selected, with a production capacity of 5 - 20t/h and a fineness of 80 - 400 mesh.

Anti - adhesion Measures: Add a small amount of calcium stearate during grinding to prevent caking, and insulate the pipelines and dust collectors well to prevent water vapor condensation.

Safety Protection Key Points: Fluorite powder may release hydrogen fluoride when it comes into contact with acid. The equipment should be sealed, equipped with a ventilation system, and operators should wear dust - proof masks and goggles.

Equipment Maintenance Guide: Regularly check the wear of the grinding roller and the grinding ring. Replace them when the wear reaches 2/3 of the original thickness. Regularly add high - temperature grease to the bearings and transmission parts.