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DESCRIPTION
A single stage, hot water heated, vertical tube, natural circulation,
Vacuum Evaporator System designed for outdoor operation under 90 MPH
wind loads, zone 3 seismic stresses and possible atmospheric icing conditions.
APPLICATION
The separation and concentration from 4.0 wt.% - 40 wt.% of a relatively
pure, single salt stream of (NH4)2SO4
for local sale, and the recovery of associated water of dilution for
internal process recycle, from a waste stream generated by a semiconductor
manufacturing waste water treatment process.
OVERVIEW
A highly customized, fully automatic, semi-continuous, DDPS Vacuum Evaporator
System. This unit features Push-button Start / Stop, PLC Controlled,
continuous separation and discharge of water and periodic, batch discharge
of concentrated salt brine at a prescribed density. The careful selection
of glass reinforced plastic, reactive metals and alloys combined with
a heavy duty, 304 Stainless Steel structure assure long and trouble
free chemical service in a tough, north coast, outdoor environment.
| EVAPORATION RATE: |
35 – 50 GAL/HR NOMINAL* |
| OPERATING TEMPERATURE: |
120 – 130°F |
| OPERATING VACUUM: |
26.5 – 25.4 In. Hg Vacuum |
| HEAT ENERGY REQUIRED: |
500,000 Btu/Hr. @ 185°F (Hot water
control system by customer). |
| COOLING WATER: |
44 GPM @ 85°F for a 15°F Rise |
| MATERIALS OF CONSTRUCTION: |
Titanium, 304 St. St., FRP and PTFE |
| CONTROLS: |
Push Button Operated, Start / Stop, SLC-504
PLC Based Electro-pneumatic, SS NEMA-4X Control Panel, Fully Alarmed
with Indicating Key Pad and Internal Lockout. Includes Disconnect
& Starter, 460 / 110V
Step-down Transformer for single 460V Electric Power Drop. |
| DIMENSIONS: |
7’ 4”L x 7’ 7”W x
18’ 0” H |
| OPERATING WEIGHT: |
5,000 Lb. |
SCOPE of SUPPLY
- Vertical, Steel Shell & Titanium Tubed, Hot Water Heated Reboiler
- Vertical, Water Cooled Steel Shell and SS Tubed Condenser
- FRP Vapor/Liquid Separation Chamber with Entrainment Pad
- Dual Vacuum System: Alloy 20 with Sealant Recovery
- PLC Based, Push Button Operated, Alarmed, Automatic Control System
- 304 Stainless Steel, Tubular Structure: 90 MPH Wind, Zone-3 Seismic,
Ice Loads
- System Pre-assembled, Piped, Wired & Electronically Tested
* Evaporation rate is measured using city water and clean boiler tubes.
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