1) The collected Acid fumes is treated with Acid fumes spray tower, the spray liquor is NaOH, the treatment rate of HCl is over 90%,.
After the treatment of HCl gas content is 1.7mg/ m³, discharge speed rate is 0.068kg/h, the discharge chimney is 15m. Up to the standard to discharge.
2) Equipment introduction
A. Acid fumes pipe
B. Acid fumes washing tower
Material is GRP or PP, 3 layer spray inside, circulation liquor box in down, with inlet, outlet and pumping mouth. 2 sets, sizeφ3500×7 m
C. Draft fan
With anticorrosion fan, 2sets, 45kw, 50000m3/h
D. Circulation water pump 2sets
Rate of flow: 30m3/h
Lift of pump: 25m
E. Acid-resisting air pipe
The size is base on the on site situation.