Mullite aluminum silicate formation at high
temperature minerals, the magnetization roasting rotary kiln lower process
temperature, process characteristics of resistance, corrosion resistance,
thermal shock resistance, mullite SiC composite prefabricated brick with
mullite materials and silicon carbide material composition and mullite SiC
castable method of composite masonry, at the same time refractory materials at
high temperature with different proportions, to improve the thermal stability
of refractory materials, delaying the ring material erosion of refractories and
destructive effect, slow ring phenomenon, obtains a good application effect.
Masonry of refractory materials has also
been a corresponding improvement. The composite precast slabs by anchor is
welded and fixed on the kiln body, between two rows of brick layer with light
castable and wear resistant pouring material filling, ensure the integrity,
stability and thermal insulation refractory. In building process, in order to
prevent the kiln rotary kiln in emphasis, built after four rows of
prefabricated brick, turn to the top and then laying four lines. After the
completion, in turn rotary masonry.
Through the above method, to ease the
interaction of refractory materials and materials, delaying ring phenomenon.
And the use of masonry composite prefabricated brick and abrasion resistant
castable refractory material to strengthen the strength, processing node ring
for refractory material damage, repair cycle is short. Through the practice,
refractory maintenance cycle from 2 to March was extended to 1 year, improve
the rotary kiln operating rate, with significant economic benefits.
