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 Laboratory Full-Directional 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 square 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.