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Idea
purpose, advantages, inventor
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Research
comminution, material throughput, pressure distribution, modelling
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Praxis
plant configuration, roller wear, references
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Other Links
links to suppliers, universities and other institutions
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Contact
for any questions please contact us
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Technical Data of the Lab-Scale HCRM
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The technical data of the experimental equipment used for the throughput tests and for the pressure distribution tests is
shown below. The two rollers of the mill are rotating in the opposite direction with the same circumferential speed. One roller can move sideways on a slide bearing (movable roller). So the gap
width is not fixed but will respond to the draw in of the material and the interdependency of the grinding force (applied by plate springs) and the compression behaviour of the material bed. A maximum
gap width of 10 mm is possible for this lab-scale mill.
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Lab-scale High Compression Roller Mill /
Institute for Mineral Processing of the TU Clausthal (Germany, 1989)
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Roller diameter
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D
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200
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mm
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Roller length
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L
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100
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mm
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Grinding force, maximum
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Fmax
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200
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kN
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Spring stiffness
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kf
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10.5
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kN/mm
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Motor power
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p
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33
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kW
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Gear reduction, motor/roller
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7.3
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Torque
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Tmax
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1000
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Nm
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Roller circumferential speed
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umin
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0.1
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m/s
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umax
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3.3
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m/s
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Feeding funnel
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Width
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60
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mm
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Length
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100
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mm
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Height
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580
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mm
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Comminution
grinding results for different materials
Exper. Setup
lab-scale mill, techn. data mill, intrumentation, feed materials, testing program, roller surface data, test execution
Throughput
literature, decoupling of throughput and comminution, energy absorption, characteristic of different rollers, phenomenons, throughput results, elasticity, friction angle, specific throughput
Pressure Distribution
pressure diagrams
Press Tests
tests with a molding press
Modelling
mathematic model of the process
Signs and Symbols
nomenclature
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