Multi Frequency Vibratory Screeners for SIZING of Difficult-to-Screen Bulk Solids with embedded Multifrequency KROOSHER system

Size: px

Start display at page:

Download "Multi Frequency Vibratory Screeners for SIZING of Difficult-to-Screen Bulk Solids with embedded Multifrequency KROOSHER system"

Brett Barker
5 years ago
Views:

1 Multi Frequency Vibratory Screeners for SIZING of Difficult-to-Screen Bulk Solids with embedded Multifrequency KROOSHER system

2 PRODUCT LINE Circular Screeners SXE Rectangular Screeners ULS 2 Sieve Analyzers MSA

-Increased product output -Improved product quality

3 provides Unique Action: -Continuous SELF-CLEANING of the mesh -Vibratory-impact processing of the material -Increased product output -Improved product quality -Reduced screen area Options: -to reduce aperture size -to size impossible

4 applications -Aggregates -Minerals -Fertilizers -Chemicals -etc. industries

5 Solves the problems: -Sticky mesh blinding -Sticky agglomeration of particles -Particles Pegging / Wedging -Low screener output -Inaccurate separation

6 suggests: Dry screening - alternative to usual wet classification of moist sticky quarry fines Money-saving Energy-saving Nature-saving

7 Kroosh Rectangular Screeners: Major Applications Screening of quarry fines and wastes (natural moisture crushed dolomite, limestone, granite, basalt, etc.) Classification of bulk solids - quartz sands, silica, coke, etc. (dry but with complicated shape, near-sized blockage) Slurries classification / dewatering

8 Major Advantages in Processing Comparison to traditional screeners: Continuous Self-Cleaning of the mesh Increased Screening Capacity per sq. m. Compact design - less necessary space Improved product Quality: More clean oversized product - due to mesh self-cleaning and disintegration of cohered particles Increased undersize output Self-cleaning and disintegration of cohered particles 8

9 Kroosher MFV converting system Beaters Multi-frequency converter 9

10 Kroosher MFV system: properties Robust - pure mechanical system Realizes the attractor mode Contains : actuator (beater grate, bars), supported by MF adapters 10

11 Kroosher system functions Converts single frequency vibration into multifrequency vibration - repeated impact pulses Amplifies vibration 11

12 Kroosher MFV converting system functions Transmits activation to the sieve Distributes it evenly over the sieve surface via an interface device (rigid support screen, perforated plate, etc.) 12

13 Multifrequency activation: Normal acceleration of the sieve up to 500 Gs Pulses locally, at the sieve surface Filtering: body has traditional acceleration 4-6 Gs 13

14 Self-Cleaning of the Sieves Prevents wedging, clogging particles Near-sized particles dance and leave the openings Sieve wires shake off adhered particles 14

15 15 Multifrequency activation of the bed Fluidization loosening and stirring of particles inside the material bed Accelerated stratification - small particles are quickly submerged down to the sieve No need a long way for separation > lesser required screen area Disintegration of agglomerates (cohered particles) onto separate particles which pass via the aperture

16 Multifrequency activation: Vibratory fluidization/boiling > loosening and stirring of particles inside the material bed Intense fluidization quickens stratification of the bed 16

17 Multifrequency activation of the bed Stratification accelerated small particles are submerged down to the sieve quickly Less way need for separation Less required screen area 17

18 Multifrequency activation Disintegration Agglomerates cannot pass via the aperture; MF activation disintegrates clusters on pluralities of separate particles; These smaller particles (former agglomerates) now can pass via the aperture 18

19 Multifrequency activation: Disintegration Effects: Increased undersize output Improved quality of products Usual wet screening processing may be replaced with dry screening 19

20 Multifrequency advantages Shorter way is need for particle to pass via the aperture Lesser length is need to reach good separation quality Lesser required screen dimensions Lesser residence time on the screen Increased screen capacity Improved separation quality 20

21 ULS: Major adjustments Vibrator weights Frequency Direction of weights rotation Sieve tension Body inclination 21

22 ALL OUR PRODUCTS meet international quality standard ISO

23 Attractor Method 1. We use mathematical simulation to get these vibratory impact modes stable - in spite of changes in processing load 2. We use strange attractor nonlinear phenomenon 3. Attractor effect provides stable boosted vibration mode of the system under fluctuations of the load 4. Multifrequency wide-band spectrum vibration enables screened material to absorb vibration energy optimally 5. Useful part of energy, transferred to the screened material, increases several times with regard to conventional screeners 6. Distribution of energy over frequency spectrum may be optimized for each specific application 23

Evaluating screening performance. A.J. DeCenso, Product Manager, Rotex Inc., Cincinnati, OH

Evaluating screening performance. A.J. DeCenso, Product Manager, Rotex Inc., Cincinnati, OH Screening is the process of separating dry material based on particle size. The performance of a screening machine