石城县绿洲选矿设备生产

BLL型玻璃钢螺旋溜槽

BLL Glass Fibre Reinforced Plastic Spiral Chute

BLL型玻璃钢螺旋溜槽用于选别细粒（包括细微粒度）的金属矿物，如铁矿、钛铁矿、铬铁矿、硫铁矿、钨钽矿、砂金矿、海滨的独居石、金红石、锆英石及有足够比重差的其它金属和非金属矿物选别。本产品由原地矿部*****企业生产，执行行业标准。

螺旋溜槽是根据有用矿物与脉石矿物在比重、粒度、形式上的差异，在螺旋的斜面产生矿浆动感的离心流膜，在重力和离心力的综合力场中，利用不同颗粒所受重力、水动压力和摩擦力，实现有用矿物与脉石分选的。螺旋槽中的水动除作向下的螺旋运动外，还作横向的循环流动。上层水流流速快，产生较大的惯性离心力，甩向槽的外缘。与槽底相邻的下层水流回转速度慢，离心力小，在重力作用下从外缘流向内缘，产生二次回流。矿浆中的重矿粒沉降快，沿收敛的螺旋线逐渐称向内缘，****后以精矿形式产生。轻矿物沉降慢，处于矿流表层，流速快，离心力大，在横向环流作用下，沿扩渐的螺旋线逐渐移向外缘，****后以尾矿形式产出。

Laboratory BLL Glass Fibre Reinforced Plastic Spiral Chute is applicable for separation of fine-grained (including micro-grained) metallic minerals such as iron, ilmenite,chromite, tungsten-tin ore, niobium-tantalum ore, gold placer, seashore monazite, rutile and zircon as well as other metallic and non-metallic minerals with adequate difference of specific gr*ity. The product i*ade by the only maufacturer designated by the former Ministry of Geology and Mineral Resources, in compliance with the Industrial standa*.

Spiral Chute is to make separati* of useful minerals from gangues by use of the different particles subject to gr*ity, hydraulic pressure and friction in the multi-force field through dynamic ce*ifugal flowing membrane of slurry produced on the inclined surface of spiral based on the differences of useful mineral and gangue in specific gr*ity, particle size and shape. Water in the spiral chute runs downwa*piral movement and also flows in circulatio*ansversely. Water in the upper layer run fast, generating ce*ifugal force with large inertia to toss toward the outer edge of the chute. Back-flow of water in the lower layer adjacent to the chute bootom runs slowly with *all ce*ifugal force and flows from the outer edge to the inner edge with the action of gr*ity, generating secondary back-flow. Particles of he*y minerals in slurry settle rapidly and gradually moves toward the inner edge along the converged helix prio to finally being produced as conce*ate. Light minerals settle slowly and flow fast in the surface layer of ore flow with large ce*ifugal force and gradually move toward the outer edge along the expanding helix before finally being produced as tailings.