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諾德貝克(Nordberg)自磨机的首次工业試驗正在加拿大比維諾茲(Beaverlodge)选厂进行。該厂曾利用5呎直径的半工业自磨机进行了三个月的試驗,試驗表明,此种磨矿机的費用比一般的破碎和磨矿費用低,并証实,按装19呎(直径)×17呎的两端給矿的諾德貝克自磨机进行工业試驗是合适的。湿磨产品通过中央周边排矿孔排矿。产品的分級将分四个阶段进行:(1)內部格板(每室一个);(2)周边篩;(3)20呎×6呎振动篩;(4)湿式旋流器。两种篩上产品将返回至自磨机。旋流器沉砂可全部返
The first industrial test of Nordberg self-grinding mills is under way at the Beaverlodge plant in Canada. The plant had been tested on a 5-foot-diameter semi-industrial self-mill for three months and the tests showed that the cost of such a mill was lower than the general crushing and grinding costs and confirmed that the 19-foot Diameter) × 17 feet at both ends of the ore to the Nordborg self-grinding machine for industrial testing is appropriate. Wet grinding products through the central drainage row hole drainage. Product grading will be carried out in four stages: (1) internal grate (one per room); (2) perimeter screen; (3) 20 foot by 6 foot shaker; and (4) wet cyclone. Both types of oversize products will be returned to the self-mill. Cyclone grit can be all back