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Final Product: Paper Products
Project Scope:
Vacuum and/or Pressure Systems for Hopper (2) • Airslide and P.D. Railcar and P.D. Truck Unloading •
Bulk Storage - (2) 10,000 Ft3 Silos and (1) 7500 Ft3 Silo • Silo Aeration Discharge System • Local
Dust Collection • (1) 1,000 Gallon and (2) 2,000 Gallon Starch Slurry Makedown Systems • Slurry
Transfer Systems (3)
Materials Handled:
Cationic Starch • Pearl Starch • H2O
Solution Overview
Combination Vacuum and Pressure Unloading:
Two high volume unloading systems were provided for complete flexibility to handle various bulk
delivery vehicles. Vacuum/pressure transfer systems were installed to unload hopper bottom railcars.
Each pressure blower was supplied with an automatic air diverting valve to pressurize either P.D.
railcars or P.D. trucks. Any combination of two delivery vehicles can be unloaded to two different
silos simultaneously.
Slurry Makedown:
Shick supplied (3) stainless steel slurry tanks which were installed in the skirt of the large diameter,
bolted starch storage silos. Aeration air disc bin dischargers are attached to the outlet of each silo
and high volume, low pressure air is introduced from a pressure differential blower through the aeration
media on the air disc. The aeration air fluidizes the starch and allows it to flow freely through the
center outlet. Water is first pumped into the slurry tank to a setpoint controlled by the load cells
installed underneath the slurry tank. After the water addition, the agitator is started and continues
to operate while starch is metered from the silo through a rotary valve installed at the outlet of the
air disc. The starch addition continues until the desired slurry strength is attained, which is
established by a predetermined setpoint controlled by the load cell sealing system. The agitator
continues to mix the slurry for a preset time period and then the completed batch is pumped to an in-plant
slurry holding vessel.
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