Tumbler Screeners
Tumbler Screeners are screeners that use a 3D motion and unique anti-blinding devices to achieve high efficiency separation. The motion utilizes a low energy transfer between screen surface and the product and replicates a hand sifting-tossing motion. These screeners work well with fragile agglomerated products. Tumbler screeners can incorporate ball, brush, and air knife cleaning of the screen(s).
Structures and Principles of Operations
Basic swivel motion simulates manual sieving. Eccentricity is adjustable from 25-40mm; low-speed V belt is adjustable from 120-360rpm For each kind of powder, the stay time can be changed by adjusing radially or tangentially along the driving axis direction Three-dimensional tumbling motion is realized both horizontally and throwingly. The powder is thus distributed evenly on the screening surface in the Tumbler Screening Machine/Tumbler Screener and being transported in spiral movement in the axis direction. Fine particles therefore pass through the cloth accurately. Both the horizontal and perpendicular acceleration speeds increase with the motion of the particles. The particles smaller than sieve pore separate successfully with the big particles and the big particles are transported to the exit at the same time. An adjustable guiding device is over there to control the flow rate, it also determines the stay time of the powder. According to the number of tier, above sieving motions are repeated at the same time on each tier.
Features
The output of Tumbler Screening Machine / Tumbler Screener in unit area amounts to 5 times of those output by normal sieving techniques. The number of tier can be as more as 6 with sieving efficiency as high as 90-95 percent. The tumbler screener works with effective cloth cleaning device such as bouncing ball made of silicon or ultrasonic as well as rotating brush in order to give the screen cloth a highly efficient cleaning and prevent the screening pore from being blocked. The HMK18 is closed with dust-free design to give the operator a safe operation. The accelerating speed is 4.5 times less than vibrating sieves and such design contribute to the life time of the sieving parts and makes for low cost maintenance. The noise is less than 75dB. The balancing status is optimized and the dynamic load on the foundation is low.
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