The HGM Grinding Mill, developed by Clirik, is a highly efficient and advanced machine designed for grinding non-metallic minerals such as dolomite into ultra-fine powder. This mill is widely used in various industries due to its ability to produce powders with high precision and uniformity. The following is a detailed introduction to the process flow of using the HGM Grinding Mill to grind dolomite.
The process begins with the preparation of dolomite. Large dolomite blocks are first crushed into smaller pieces, typically less than 20mm in size, using a hammer crusher or jaw crusher. This pre-crushing step is crucial to ensure that the material can be effectively fed into the grinding mill.
The crushed dolomite is then transported to a storage hopper via a bucket elevator. From the hopper, the material is evenly fed into the grinding chamber through a vibrating feeder and an inclined feeding pipe. The vibrating feeder ensures a consistent and steady supply of material to the mill.
Inside the grinding chamber, the main shaft driven by an electric motor rotates the grinding ring and rollers. The dolomite is driven to the edge of the turntable by centrifugal force and falls into the grinding chambers. Here, it is subjected to repeated impacts, rolling, and grinding by the rollers against the grinding ring. This process breaks down the dolomite into ultra-fine particles.
The high-pressure air blower continuously inhales air within the grinding mill, and the airflow carries the ground material to the classifier. The classifier’s high-speed impeller separates the material based on particle size. Coarser particles that do not meet the required fineness are returned to the grinding chamber for further processing, while fine powder is carried by the airflow into the cyclone powder collector.
Most of the qualified powders fall and exit from the discharging valve at the bottom of the cyclone powder collector. A small proportion of the fine powders, along with the airflow, moves to the dust cleaner and clings to the surface of the filter bags. The fine powders clinging to the surface fall down by the sudden vibration of the filter bags, caused by the instantly ejected high-pressure gas controlled by the pulse valve. The filtered clean air is emitted from the air outlet of the muffler.
The collected fine dolomite powder is then transported by a conveyor belt to the packaging area, where it is packed into bags or bulk containers for storage or transportation.
Throughout the process, the HGM Grinding Mill operates in a closed system with an advanced dust collection system. This ensures minimal dust emissions and maintains a clean working environment, adhering to environmental protection standards.
The HGM Grinding Mill from Clirik is a versatile and environmentally friendly solution for grinding dolomite. It combines advanced technology with efficient operation, ensuring high-quality output and minimal environmental impact. Whether used in the construction, chemical, or metallurgical industries, this mill provides a reliable and efficient method for processing dolomite into ultra-fine powder, meeting the diverse needs of modern industrial applications.
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