Large vertical grinding mill working principle and structure
Working principle and structure of large vertical mill
JHM Machienry takes scientific and technological innovation and serving the society as its development mission. Through in-depth development of new paths of industry-university-research development, the introduction of advanced pulverizing technology, and continuous promotion of product and technological innovation, JHM Machienry has produced a series of coal mills, bentonite mills, and titanium dioxide mills. With advanced equipment such as powder mills, JHM ore mills have a variety of varieties, excellent and reliable quality, and high-quality services. Among them, the large-scale vertical mills produced have attracted much attention and popularity. The working principle and structure of large-scale vertical mills The important knowledge to know is the foundation of the foundation. The working principle and structure of large vertical mills are actually similar to those of small and medium-sized vertical mills.
I. Working principle of large vertical mill
The working principle of the large vertical mill is actually the working principle of the roller mill. No matter how its structure changes, the material is ground by the principle of material bed grinding. The material transported to the mill by the batching station through the belt enters the vertical mill through the three air lock valves and accumulates in the middle of the grinding disc. As the rotation of the grinding disc drives the grinding roller to rotate, the material moves to the edge of the grinding disc under the action of centrifugal force and bites into the roller. Grinding is performed between the discs, and the linear speed is the same only at the standard diameter between the rollers and discs, and there are speed differences in other parts, that is, shearing. Vertical mill is also called medium-speed mill. During the grinding process, some materials are pushed to the edge, cross the stopper ring, and be carried up by high-speed airflow. Large particles fall back to the grinding table for re-grinding, and small particles are brought into separation. The powder separator (powder separator) is used for powder selection under the action of the rotating fan. The coarse particles fall back to the grinding table through collision and consume energy. In this way, it can become a finished product after dozens of up and down cycles. Special particles such as Tiekuai, etc., fall into the bottom of the grinding table through the nozzle ring, and are discharged from the grinding plate by the scraper.
II. Structure of large vertical grinding mill
Six-roller large vertical grinding mill
The structure of the vertical mill is divided according to the data of the grinding roller, there are two-roll vertical mill, three-roll vertical mill, four-roll vertical mill and six-roll vertical mill. The structure of large vertical mills usually has a large number of rolls, most of which are more than 3 rolls, or even 6 rolls. The structure of the whole set of large vertical mill production line includes crusher, elevator, hopper, storage tank, computer quantitative feeder, iron remover, vertical mill host, high-pressure fan, pipeline, dust collector, dust collector and packaging and other equipment .
Production process of large vertical grinding mill
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