Laboratory Spiral Chute


Laboratory Spiral Chute

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  • Laboratory Spiral Chute Application

    Spiral chute is suitable for fine materials of 0.3-0.02 mm granularities, such as iron ore, ilmenite, chromite, pyretic, zircon, rutile, monazite, xenotime, tungsten ore, tin ore, tantalum ore, colombite ore as well as other nonferrous metal, rare metal and nonmetal minerals of different proportions. The product is made by the only manufacturer designated by the former Ministry of Geology and Mineral Resources, in compliance with the Industrial standards.
     

     

     

    Laboratory Spiral Chute Features

    Reasonable structure and small occupation areaHigh recovery, high efficiency, and precise separation,Light in weight, rust and corrosion resistant;Simple installation and Minimal maintenance requirementsLow operating cost and long operating lifeReliable running with minimal operator attentionStrong adaptability to fluctuation of feeding amount, density, size and grade.

     

     

    Laboratory Spiral Chute Structure

    1:The glass fiber reinforced plastic spiral chute consists of feeding equipartition device, feed chute, spiral slice, product intercepting trough, feeding hopper, and trough support. 
     

    2:The spiral chute is formed after five circles of glass fiber reinforced plastics helical blade (360° for every circle) are connected with bolts. It is also fixed on the support. 
     

    3:According to the needs of user, if it is permitted by the height of screw pitch, one, two, three or four spiral chutes can be installed respectively for every spiral chute. The separating materials are fed to each feed chute through the feeding equipartition device, and then slowly flow into each chute for separation. 

     

     

    Laboratory Spiral Chute Working Principle

    a: The sand pulp is first send to the two inlets of the spiral chute. After added water for appropriate pulp density, the pulp swirls down and generates a centrifugal force which separates the ores and sands. The ore concentrate flows into the hopper and is collected through a pipeline. The tailings are discharged by a sand pulp. Thus, the whole mineral process is finished.
     

    b: The valve block at the end of the spiral chute divides the already separated ore flow into several types (such as concentrate, middling, minor middling, and tailing) according to grades.
     

    c: surface of spiral based on the differences of useful mineral and gangue in specific gravity, particle size and shape. 
     

    d: Water in the spiral chute runs downward spiral movement and also flows in circulation transversely. Water in the upper layer run fast, generating centrifugal 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 small centrifugal force and flows from the outer edge to the inner edge with the action of gravity, generating secondary back-flow.
     

    e: Particles of heavy minerals in slurry settle rapidly and gradually moves toward the inner edge along the converged helix prior to finally being produced as concentrate. 

    f: Light minerals settle slowly and flow fast in the surface layer of ore flow with large centrifugal force and gradually move toward the outer edge along the expanding helix before finally being produced as tailings.


  • Technical Specifications for Laboratory Spiral Chute

    Model

    Uite

    BLL-Φ600

    BLL-Φ400

    Screw diameter

    mm

    Φ600

    Φ400

    Spiral size

    mm

    360

    240

    Spiral in the first few

    (head

    )

    1

    1

    Each of the first few laps

    (circle

    )

    5

    5

    Feed size

    mm

    ≤0.3

    ≤0.3

    Feed density

    %

    20-40

    20-40

    Capacity

    t/h

    0.8-1.2

    0.1-0.2

    Overall dimensions

    mm

    700×700×2750

    460×460×1500

    Weight

    kg

    90

    60

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