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The Smelt Dissolving Tank dissolves smelt by mixing a hot smelt stream with a cold weak wash stream. A green liquor stream and a steam stream result.
Specify either the Green Liquor Density or the Green Liquor TTA.
The required inlet flow of weak wash is calculated and the inlet weak wash stream flow is set to this value.
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Data |
Unit |
Description |
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Set |
Item |
Type |
Native |
| Equipment Properties |
GLTemperature |
Temperature |
F |
The temperature of the raw green liquor. |
| GLDensity |
Density |
lb/ft3 |
The density at 25 C of the raw green liquor. |
| GLTTA |
Density |
lb/ft3 |
The TTA at 25 C of the raw green liquor. |
| VentTRS |
Mass Flow |
lbs/hr |
The flow of TRS (H2S) in the vent. |
| VentSolids |
Fraction or Percent |
Fraction |
Fraction of inlet solids in the vent. |
| Calculated Properties |
GLTemp |
Temperature |
F |
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| GLPres |
Pressure |
psia |
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The smelt dissolving tank dissolves smelt by adding weak wash. The amount of weak wash used is set by specifying the green liquor density or TTA. It is assumed that the resulting raw green liquor is saturated. Thus additional weak wash must be added to cool the resulting green liquor to saturation by evaporation. The evaporated water is vented.
No weak wash entering!
Solution: Set a nonzero weak wash flow.
Missing Stream(s)!
Solution: check if all the streams are connected to the equipment.
No smelt entering!
Solution: Set a nonzero smelt inlet flow.
