Mongolian mill processing siderite

• Publication time：2025-10-09
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Raymond Mill and Siderite

As an important raw material for iron and steel production, siderite is often associated with impurities such as manganese, magnesium, and calcium. It has characteristics such as medium hardness, friability, and thermal sensitivity. The raw ore needs to be dried to control moisture, facilitating subsequent crushing and grinding. Its weak magnetism has little impact in general processing, but it can be converted into strongly magnetic magnetite after roasting. It is suitable for various industrial fields such as cement manufacturing and environmental remediation. The Raymond mill is the preferred equipment for siderite processing.

Process of Processing Siderite with Raymond Mill

Raw Ore Crushing

The jaw crusher crushes large pieces of raw siderite ore into small pieces with a particle size of less than 30mm.

Drying Treatment

Use a medium and low-temperature dryer (such as a drum dryer), with the hot air temperature controlled below 200 - 250℃, to reduce the moisture content to below 1%.

Elevating and Feeding

The elevator sends the dried materials to the raw material bin, and the electromagnetic vibrating feeder uniformly and quantitatively feeds them into the main machine of the Raymond mill.

Grinding and Classification

The grinding rollers and grinding rings crush the materials by rolling. The air flow from the fan makes the powder fly, and after classification by the analyzer, the fineness of the finished product can be adjusted from 80 to 600 mesh.

Collection and Dust Removal

The cyclone collector separates most of the qualified finished products, and the pulse bag filter captures fine dust to ensure that the emission meets the standards.

Key Points of Processing Siderite with Raymond Mill

Temperature Monitoring and Regulation

Pay close attention to the temperature during the drying process, monitor the discharge temperature during the grinding process, and check the cause and cool down when there is an abnormality.

Guarantee of Feeding Uniformity

Select a reliable electromagnetic vibrating feeder, conduct regular inspection and maintenance, and the operators should pay attention to the feeding situation and adjust the feeding speed.

Equipment Maintenance

Regularly lubricate key bearing parts, check the wear of vulnerable parts and replace them in time, and regularly clean the air duct and other components.

Correct Startup and Shutdown Sequence

When starting up, first turn on the fan, then the analyzer, and finally start the main machine and the feeder. The shutdown sequence is reversed.

Summary

In siderite processing, the Raymond mill realizes the production of 80-600 mesh finished products through crushing, drying, grinding, and air classification. Attention should be paid to temperature control, uniform feeding, equipment maintenance, and standardized start-stop operations.