Practical exercise 4

Solving
Vacuum filter performance (G, t/s,sense of soda.) determine with the formula:
_GFdrn 60ω _,
1000
Here F is the area of ​​the filtering surface, m2;  is the thickness of the bicarbonate sediment layer in the filter, m;  - sediment density in the filter, kg/m3;  – compression coefficient; n – drum rotation speed min–1;  is the coefficient of soda release from bicarbonate;  is the coefficient for standard soda (0.992).
Removal of sediment from the field in one revolution of the drum:
F= DL = 3.14 · 1.8 · 0.98 = 5.55 m2.
The coefficient of compression of sediments is calculated based on the total thickness of the sediment layer and the thickness of the layer remaining in the fabric after cutting:
^{d  d'}  40  5  0.875.
d 40
The product filter works as follows:
_G5.55  0.04 1320  0.875 1 60  0.52 _{ 8.07 t/h.}
1000  0.992