Agrify PRECISION HDU Panduan Operasional - Halaman 8

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Section 4 – Preparing and Operating the HDU
Prior to use, the operator must read and be familiar with the specific operation manual of the extraction equipment. The following procedure
outlines the steps to prepare operate the HDU. Nitrogen gas may be required to transfer solvent between vessels. This section is meant to be
the baseline information for the operator to develop their internal SOP.
4.1.
Turn on all axillary ancillary equipment.
4.2.
Fill filter spool with distillation matrix.
4.3.
Connect DOT source tank to the HDU inlet and connect the HDU outlet to the extraction system.
4.4.
Once the TCU has reached the desired temperature, open the outlet valve on the DOT cylinder to charge the hose with solvent.
4.5.
Slowly open the needle valve, allowing the solvent to enter the HDU and the pressure to rise to 20 psig.
4.6.
Close needle valve.
4.7.
Begin solvent recovery.
4.8.
Open valve into expansion column.
4.9.
Open recovery valve into the solvent tank
4.10.
Slowly open needle valve, allowing solvent to flow into the heat exchanger.
4.11.
Monitor flow in top sight glass/bottom sight glass.
4.12.
When bottom sight glass looks like rain, inlet valve is open too much.
4.13.
Bottom sight glass should look misty with little drops of liquid falling.
4.14.
Inlet valve can be opened as much as possible, in relation to what you see in the lower sight glass.
4.15.
As the LP-Gas descends into the heat exchanger it will undergo a phase change from liquid to gas. Additionally, contaminants that
were present in the feedstock will be deposited into the bottom bowl at the base of the heat exchanger.
4.16.
As the gas passes through the filter column additional contaminants will be collected on the medium inside the filter column.
4.17.
End the distillation once the desired amount of the solvent has been cleaned.
4.17.1.
If using a scale for the DOT tank, DOT valve can be shut when desired weight has been transferred out of the tank.
4.17.2
If not using scale, use the sight glass on the solvent tank to indicate when to close the DOT valve.
Model HDU Operational Manual – For Hazardous Environments
Precision® Extraction Solutions
©2022 PX2 Holdings, LLC. All rights reserved. Rev. 04/24/23
Model HDU Operational Manual – For Hazardous Environments
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