PCC production line
process characteristics1) lime calcining lime kiln developed by our company, good quality of CaO, kiln gas at high concentrations.
2) digestion Section rotary digestion machine, good quality of gray, low labor intensity.3) kiln gas using inertia, spray, foam washing, packing the adsorber four dust, not only the kiln gas purification of good quality, but also effectively reduce the kiln temperature.Selection of the compressor
4) kiln gas pressure delivery, together with the appropriate high level of carbonation tower, can reduce the carbonation time, improve product quality, easy to operate.5) dehydration Section suspended centrifuges, dehydration and high efficiency, energy saving, low operating cost.6) drying section in a rotary kiln environmental protection, energy saving, high thermal efficiency (thermal efficiency of 90%), simple operation, easy maintenance.product standardsThe production quality is stable, finished a pass rate above 99%.Product quality and implementation of standards in the following table.
The quality standards of the Industrial precipitated calcium carbonate
Project | index | |||
high-class product | first-rate product | qualified product | ||
(CaCO3)content(Dry base plan ) % ≥ | 98.0 | 97.0 | 96.0 | |
PH(10%suspension ) | 9.0-10.0 | 9.0-10.5 | 9.0-11.0 | |
105°C volatile content % ≤ | 0.40 | 0.70 | 1.00 | |
Hydrochloric acid insoluble % ≤ | 0.10 | 0.20 | 0.30 | |
sediment volume ml/g ≥ | 2.8 | 2.6 | 2.4 | |
Iron (Fe) content % ≤ | 0.08 | 0.10 | 0.12 | |
(Mn)content % ≤ | 0.006 | 0.008 | 0.010 | |
residue on sieve | 125um test sieve% ≤ | 0.005 | 0.01 | 0.015 |
45um test seive % ≤ | 0.30 | 0.40 | 0.50 | |
whiteness ≥ | 90.0 | 90.0 | ||
hydrotrope , % ≤ | 0.2 |
PCC production line