In 1956, Germany Humholdt company display the tilt sedimentation tank in the market for the thick and grading work. Japan's Industrial Technology Research Institute launched the inclination of 45 dual-chamber decreased flow inclined plate Shen Qing slot, Shen Qing trough the upper tank installation in 1959 . The tilt board in New Zealand and the inclined plate coated is made of 0.5 mm l mm thick steel sheet double-sided vinyl resin, plate spacing is 80 mm. Equipment as hydraulic classification equipment in gravity concentrator. Tube inclined plate (oblique) thick or theoretical basis for classification of shallow subsidence.Mid-20th century, inclined plate (Inclined Tube) thick or dehydration grading equipment put into use.
In the 1960s, France introduced the inclined tube sedimentation of I avadune and Lavoflux hydraulic sorting sorting machine, the I avodune sorter diameter coarse l root inclined tube for sorting (grading) 0.5 mm or the larger materials; Lavoflux the l group smaller the inclined tube, grading or sorting of the material is 0.1 ~ 0.5mm. Pulp plus rinse water from the Central gives inclined tube, the lower part of the second washing is coarse sediment, reduce fine entrainment, fine-grained level and light minerals in the rise of the action of water discharged from the inclined tube seven to achieve the thickness gradingor sorting purposes. The former East Germany, Reichenbach in 1960, the "tilt thick the structure and working principle, the first systematic enrichment mechanism of the inclined plate thickener, construction and T industry equipment test indicators. The technical parameters of industrial equipment for plate length is 450 mm. Plate width is l400mm. Plate distance is 20 mm, thickness (glass) is 6 mm, inclination is 50. . The equipment used for concentration and separation with more mud slurry overflow product particle size of less than 40 um -63 um content in the underflow is still 43.2%.
The former Soviet Union the Ural beneficiation Research and Design Institute in 1980 introduced a slotted tilt plate thickener concentrated at the concentrator, desliming, dehydration, and grading applications. Its structure is signaled, as shown in Example 3.4 -48. Fighting equipment, the upper rectangular tank, the lower two grit cone.Industrial prototype overflow area is 1.3 mz, tilt the plate length is 0.8 m, width is 1.0m, height is 25 mm path cubicle, board group inclination is 600. Overflow of spiral classifier or cyclone feed size is -44 um size accounted for 45% of materials classification, with the increase in traffic to the mining, classification efficiency from 33% to 80%. Shen in the sand is44 um content from 33% to I2, the overflow - 44 um content from 99.8 to 92.5 percent, does not appear to run rough. Trough inclined plate grader cone thickener and hydraulic classifier, it is similar to other technical indicators, used to clarify, dense, high and desliming processing,their capacity is higher than the others 4-9 times.
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