Prospects of Inclined Plate Grader
Our research and application of the inclined plate grading machine (Inclined Tube) began in the 1960s. In 1978, the Central South Mining and Metallurgical Institute of Jinduicheng Molybdenum Company designed and produced the 2.5 m x2.5 m rise in water tilt plate grading box to replace the φ250 mm hydrocyclone closed-circuit grinding and classification.The grading box is composed by the upper and lower box on the cabinets, the upper box is installed a head of the wide size 850 mm × l OOO mm. Thick smooth glass is 5mm or 10mm thick hard plastic plates, plate group angle is 60. Plate distance is 100 mm, the top of the inclined plate is located in the overflow surface under 250 mm, work, material feed port evenly from the lower part of the upper box gives the classification of the box, the most coarse level direct fall to the grit boxes, fine-grained level with the rising flow along the inclined plane line circle 3 , the former Soviet Union trough inclined plate grading machine to overflow surface discharge in the coarse-grained level in the upstream process, due to gravity sink to the board, and then decline to row into grit Box. Production practice shows that the grading box may be better, to ensure that the overflow product size, the classifier efficiency is only 50% - 55%. In 1983, the Northwest Institute of Metallurgical and Geological reference foreign Lavodune hydraulic classification machine developed a tilt hydraulic separation tube, used for sorting shaking mine.
Our original Osaka Tan tin produced a double-sloping plate to adapt the
fluctuations in the volume and concentration of the water collected in the pulp,
the design grading boxes, grading granularity board rise in water speed decided
by the lower tilt.when it is used to classify the0.28 mm material , up and down
these two boxes at the same time the work of classification efficiency is
maintained at about 80%. Tilt plate of the device is mainly used to uniform
distribution of upward flow, plate spacing is 100-200 mm, plate length is
400-600 mm. Kunming Metallurgical Research new materials Co., Ltd. (Kunming
Metallurgical Research Institute) in the years of research, application, based
on independent research and development KMLF oblique narrow flow grader, and in
1999 , in the Panzhihua Iron and Titanium Corporation Titanium Plant ,the
Applications was successful. The research is groundbreaking, which makes the
oblique narrow flow fractionation techniques move forward a major step, this
scientifical results has broad application prospects.
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