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Ultra-fine powder mill processes gypsum

- Publication time:2025-08-18
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Ultra - fine Grinding Mill and Gypsum
Gypsum is divided into two types: natural (gypsum dihydrate) and industrial by - product (desulfurized gypsum). The properties of calcined building gypsum are different. The grinding targets of different gypsums range from 80 - 600 mesh, and they have various uses. Medical gypsum has strict requirements for purity and fineness. Gypsum has a low hardness and high thermal sensitivity, and it is easy to be over - ground. The calcination temperature affects its performance. Therefore, high - efficiency and high - quality grinding requires good equipment, and the ultra - fine grinding mill is an ideal choice.
Advantages of Ultra - fine Grinding Mill in Processing Gypsum
Energy - saving
Adopting the principle of multi - layer grinding rings and grinding rollers for rolling, the energy consumption is 30% - 50% lower than that of traditional ball mills.
Flexible Fineness Adjustment
By adjusting the rotational speed of the classifier, fine powder with a fineness of 80 - 600 mesh can be produced to meet the needs of fields such as construction, molds, and medicine.
Low Heat - generating Characteristic
The residence time of materials in the mill is short, which avoids the phase change of gypsum caused by temperature rise and ensures stable quality. It has obvious advantages in processing calcined gypsum.
Good Environmental Performance
The closed - loop system reduces dust spillage. Together with the pulse dust collector to control dust emissions, the noise is low, meeting the requirements of green production.
Process of Ultra - fine Grinding Mill in Processing Gypsum
Pretreatment Stage
Large - sized gypsum raw materials are crushed to ≤20mm by a jaw crusher. Raw materials with a moisture content > 5% (such as desulfurized gypsum) are dried by drying equipment.
Grinding Stage
The pretreated gypsum is sent to the storage bin by an elevator, and then fed into the main machine of the ring - roller mill by a feeder. After being rolled and ground by the grinding ring and grinding rollers, it enters the classifier along with the airflow. Coarse powder that does not meet the fineness standard returns to the main machine for re - grinding, and fine powder that meets the requirements enters the next step.
Collection Stage
Qualified fine powder enters the cyclone collector along with the airflow. Most of it is collected, and a small amount of fine powder is further collected by the pulse dust collector. The finished gypsum powder is transported to the finished product bin for storage.
Packaging Stage
According to customer requirements, either automatic packaging or bulk packaging can be selected. The automatic packaging machine improves packaging efficiency and quality. Bulk packaging is suitable for customers with large demand.
Key Points of Ultra - fine Grinding Mill in Processing Gypsum
Regular Cleaning
Gypsum is sticky and easily adheres to the inner wall of the mill and pipes. It needs to be cleaned regularly by manual and mechanical means, for example, a comprehensive cleaning is carried out once a week.
Temperature Monitoring
When processing calcined gypsum, excessive temperature rise in the mill will cause the phase change of gypsum. A temperature sensor should be installed for real - time monitoring. When the temperature approaches or exceeds 60℃, cooling should be carried out in a timely manner.
Maintenance of Wear - resistant Parts
High - chromium alloy and other wear - resistant materials are selected to make the grinding rollers and grinding rings. Regularly check the wear condition. Conduct a comprehensive inspection every 2000 hours of operation. Replace them in a timely manner if the wear is severe.
Special Requirements
For processing raw materials with high moisture content such as desulfurized gypsum, communicate with the supplier to customize an ultra - fine grinding mill with a hot - air system. When selecting the model, it is necessary to combine with one's own actual situation, communicate in detail with the supplier, and conduct on - site tests.
Summary
Gypsum is divided into natural and industrial by - product types. After calcination, their properties, grinding targets, and uses are different. Medical gypsum has high requirements. The ultra - fine grinding mill is an ideal equipment for high - efficiency and high - quality grinding. It has many advantages in processing gypsum. The process includes four stages, there are key points in processing and it can be customized. It has significant advantages in processing gypsum and a broad market.
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