height with a nominal capacity of [_____] liters gallons and a dry salt
storage capacity of [_____] Mg tons. Design the water distribution system,
internal piping distributors, and brine collection system so that the
system shall be capable of dissolving [_____] kg pounds of rock salt per
second minute to produce [_____] L/s gallons per minute of brine. System
shall be able to dissolve [_____] Mg tons of salt before cleanout.
a.
Pneumatic Delivery Pipe:
Not less than 100 mm 4 inches in
diameter.
b.
Dust Collection Vent System and Safety Relief Valve: Provide
storage tank with dust collection vent system and safety relief
valve.
c.
Access Ladder: Of steel construction to be bolted to tank by
means of fiberglass reinforced plastic mounting lugs complete with
safety cage. Platform shall connect the ladder to the tank for
safe access to the manhole. Safty requirements shall be in
accordance with ANSI A14.3.
d.
Tank Internals: Construct tank internals including water
distribution piping and brine collectors of fiberglass reinforced
plastic (FRP) or polyvinyl chloride (PVC).
e.
Tank Nozzles:
ASME B16.5, Class 150, reinforced FRP or PVC
flanges.
f.
Level Control System: Electrode holder and electrodes mounted in
a standpipe exterior to the tank. Position electrodes so that a
solenoid operated water makeup valve will be opened or closed to
maintain the liquid level to within plus or minus one inch of the
set level. Provide tank with a high water alarm. Electrodes
shall be easily removable for cleaning and constructed of
materials, that will allow continual immersion in brine.
2.9.9
Chemical Feed Systems
Provide systems complete with storage tank, supporting framework, hinged
cover, mixer, strainers, level indicators, proportioning pumps, relief
valves and interconnecting piping for a complete chemical feed packaged
unit.
2.9.9.1
Storage Tank
190 liters50 gallon capacity constructed of fiberglass reinforced plastic.
Provide removable, hinged cover.
2.9.9.2
Exterior Gage Glass
Protected, full height of the tank complete with gage cocks.
2.9.9.3
Low Level Alarm
Provide tank with a low level switch to sound alarm and shut down pumps
should level drop to preset minimum.
2.9.9.4
Dissolving Baskets
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SECTION 15511N
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