Posted: 2020 08 26 Source: Kefid Shanghai Machinery Views: 153
Gypsum is a monoclinic mineral, and its main chemical component is calcium sulfate (CaSO4), which is a widely used industrial material and building material. After being ground into powder, it can be used in cement retarders, gypsum building products, model making, medical food additives, sulfuric acid production, paper fillers, paint fillers and other fields.
Gypsum processing and powder milling requires gypsum powder equipment, that is, a mill, among which the raymond mill is more commonly used. The raymond mill has a long history of application in the field of gypsum powder. After years of practice and continuous improvement, it has developed from the original traditional pendulum raymond mill to the fourth generation through the second generation of high pressure suspension roller mill and the third generation of overpressure trapezium mill. The European type grinding mill, the fifth-generation heavy-duty and smart European mill.
Compared with the traditional raymond mill, the European mill has great improvements and enhancements in terms of output, environmental protection and post-maintenance:
1. In terms of output, as far as gypsum milling is concerned, the output of the traditional raymond mill is only about 0.5-9.5 tons, which is far from meeting the needs of large-scale plant construction in the modern powder industry, while the output of the European type grinding mill can be up to 3-55 tons, the output is increased several times, and the energy consumption per unit capacity is lower.
2. In terms of environmental protection, the entire European type grinding mill system runs under negative pressure, which can control the discharge of dust. Finally, the dust collector will remove the excess dust in the pipeline, which can keep the entire workshop clean and tidy. The dust emission concentration is controlled at 20mg/m3 , lower than the national emission regulations.
3. In terms of post-maintenance, the traditional raymond mill uses butter lubrication, while the European mill's fan, spindle drive system and fan drive system all use thin oil lubrication. The oil change interval is about 4 months, the oil change interval is long and the maintenance frequency is low. A year only fuel costs can save RMB30,000-50,000.
4. In terms of operation, modern intelligent operating system, convenient and intelligent operation, all operations can be completed in the central control room, a powder workshop only needs 2-3 people, greatly saving labor costs.
In summary, for the modern gypsum milling industry, the European type grinding mill is a more suitable choice, and is the preferred choice for plant construction. In terms of the initial investment, it is much smaller than the vertical mill and is within the acceptable range of most customers.
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