Sample assessment
The two slag feeds have a surface-area objective, so a fine-looking powder alone would not address the task. Manganese-slag granules were prepared with a 4-mesh sieve, while no matching preparation is stated for fly-ash slag. Their different preparation and times should accompany any equipment comparison.
Recorded objective
Specific surface area between 600 and 1,000 m²/kg; both samples are recorded as meeting the requirement.
Equipment and selection
The source identifies QXQM family. The related TENCAN product association is Omnidirectional Planetary Ball Mill. This identifies the recorded equipment family, rather than an independently verified serial-number configuration. Jar contact materials and charge details below are test observations; an unspecified steel grade or ball-percentage basis is not supplied by the association.
Test setup
| Recorded setup | QXQM planetary family; stainless steel jar and steel balls, standard charge; nominal header mass 120 g; setting 400; run/pause cycle recorded as 5:1; interval units unspecified. |
|---|---|
| Speed notation | Values are retained as recorded speed settings. The source does not identify the revolution/rotation reference; no separate jar speed is inferred. |
Recorded procedure and results
Fly-ash slag was dry milled at setting 400 for ten minutes. The sample gave D50 = 16.3 µm, D90 = 52.5 µm and a recorded specific surface area of 862.489. For manganese slag, the starting granules were selected using a 4-mesh sieve before milling. Dry milling at setting 400 for 30 minutes produced D50 = 14.4 µm, D90 = 37.7 µm and a recorded specific surface area of 916.314. The source states m²/kg in the objective and marks the overall result as meeting it.
Interpretation
Acceptance is based on specific surface area, with units taken from the recorded objective. The supplied particle-size percentiles are additional observations and cannot replace the surface-area criterion. Both recorded surface-area values lie within the required range, although the measurement method is absent. The feeds were prepared differently and milled for different times, so the shorter fly-ash-slag trial does not establish a general grindability ranking between these materials.
Practical precautions
Confirm the surface-area test method and units when reproducing the result. Record the fraction selected by the 4-mesh sieve, actual charge mass for each material and representative sample preparation. Preserve both surface-area and particle-size measurements.
TENCAN alternatives to evaluate
TENCAN Vertical Planetary Ball Mill: Evaluate the XQM vertical family as a separately controlled dry-slag trial. Preserve each feed preparation and compare the recorded surface-area criterion using the same method; a change in D50 alone cannot establish equivalent acceptance. This is a recommendation for a new comparison, not an observed result of this trial.
Endpoint context: Fly-ash slag: 862.489 m²/kg at ten minutes; manganese slag: 916.314 m²/kg at 30 minutes, units from the objective.
Tested equipment association only: QXQM family; exact machine variant not inferred. Alternative products are evaluation candidates in the body only.
About this trial
TENCAN laboratory trial, 2022. Observations above come from this experimental record; selection considerations and proposed comparisons are engineering interpretation. Results apply to this sample and recorded conditions.