FLOWCHART OF R SERIES PENDULOUS ROLLER MILL PROCESS (RAYMOND MILL)
In recent years, with the extensive development of nonmetallic minerals in the application field of ultrafine powders, downstream enterprises have increasingly high requirements for nonmetallic minerals. In particular, there are higher requirements for the fineness of products, which disenables the traditional raymond mill to meet these requirements. The inherent deficiencies of the traditional raymond mill have been perplexing mineral processing enterprises and equipment manufacturers
其中主要問題表現在： / The main problems are embodied in the following aspects:
Low product fineness. The fineness of ordinary raymond mill is generally below 500 meshes. Such devices can only occupy the lower-end powder application market.
High mechanical failure rate, high energy consumption, high noise and high pollution emitted.
The separation effect of the collection system for products with low system efficiency is not ideal, and a large amount of fine powder is repeatedly circulated in the system rather than being effectively collected, resulting in power waste.
There are deficiencies in the air duct design of the main engine bellows. Larger particles and particles that have not been ground in time in the grinding area for materials often run into the bellows, gathering at the tail of the worm case and extending forward continuously, which gradually reduces the air volume, causes blocking with no powder or less powder easily, and affect the output.
For years of designing and producing raymond mill as a roller mill, XR high-fine raymond mill independently developed by our company has perfectly solved such problems and obtained a high-tech patent. (Patent No.: 0052871.1)
技術優勢和特點/ TECHNICAL ADVANTAGES AND CHARACTERISTICS
The spindle and star rack have been restructured in favor of stable operation, so that the operation will be more stable without swing in the central shaft area. The analytical engine is changed from towing in the cavity to hanging out of the cavity & rotation in the cavity, thus enhancing the stability and durability of the work. At that crush area, materials to be ground are always gathered in the grinding area for effective processing, to improve the grinding efficiency. The structure of grinding roller has also been updated, so that the grinding roller wheel and shaft can operate complementarily, and revolve while rotating, to improve their efficacy, durability and ability to work under greater grinding force and higher running speed. In the ventilation part, the original horizontal bottom of the bellows and air duct is changed to incline to the center and form a bucket shape to ensure that the bellows and air duct are always unblocked and free from blockage, so that the air volume will not reduce and the main mill can always operate at a high value. The classifier adopts a lantern-pattern classification system, which improves the fineness of the product.
The new raymond mill can be used for ultrafine grinding of calcite, dolomite, talc, kaolin, barite, quartz, fluorite and other nonmetallic minerals. The practice suggests that the selected calcite at a feeding size of 25mm for grinding. When the fineness is adjusted to 1,250 meshes (10um), the output can reach 800-2,000kg/h, which has higher cost performance than the traditional raymond mill.
雷蒙機技術參數/ Technical parameters
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