Large hole-opening ceramic dome is new-type supporting structure of packing of sulfuric acid drying tower and absorbing tower. Comparing with old-style structure, it has the advantages of uniform pore distribusion, high mechanical strength, high safety and stability, strong corrosion resistance, convenient operation and long service life. It has shown excellent effect in many sulfuric acid enterprises.
Main technical indexes:
|
Item |
Unit |
Value |
Standard |
|
Volume density |
G/cm3 |
2.3-2.6 |
HG/T3210-1986 |
|
Water adsorption |
% |
<0.2 |
GB8488-87 |
|
Bending strength |
Mpa |
≥60 |
GB8488-87 |
|
Compressive strength |
Mpa |
200 |
HG/T3210-1986 |
|
Acute coldness/heat resistance |
350-20°C |
not crack after 3 times |
GB8488-87 |
|
Comprehensive porosity |
% |
≥65 |
|
|
Specification |
m |
2.8, 3.4, 5, 7.5 |
|
|
Acid resistance |
% |
≥99.8 |
HG/T3210-1986 |
|
Alkali resistance |
% |
>87 |
GB/T4134.2-1984 |
|
Flexure error |
% |
|
GB/T8488-2001 |