domed top as recommended by the manufacturer for brine storage.
The tank shall be [_____] meters feet [_____] mm inches in
diameter by [_____] meters feet [_____] mm inches wall 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 system shall be capable of dissolving
[_____] kg pounds of rock salt per second minute to produce [_____]
L/s gpm of brine.
System shall be able to dissolve [_____] Mg
tons of salt before cleanout.
b.
Accessories:
Provide the following accessories:
(1) Steel holddown lugs securely bonded to the tank in adequate
number to properly anchor tank to concrete base
(2) Side bottom flanged drain not less than 100 mm 4 inches in
diameter
(3) Side and top manholes not less than 559 mm 22 inches in
diameter
(4)
Flanged top connections for delivery pipe and vent
(5)
Ladder for access to top manhole
(6)
Water inlet connection
(7)
Brine outlet connection
(8)
Level control system
(9)
Sight level gage
c.
Pneumatic delivery pipe:
Not less than 100 mm 4 inches in
diameter.
d.
Dust collection vent system and safety relief valve: Provide
storage tank with dust collection vent system and safety relief
valve.
e.
Access ladder: Of steel construction to be bolted to tank by
means of FRP mounting lugs complete with safety cage. Platform
shall connect ladder to tank for safe access to manhole.
f.
Tank internals: Construct tank internals including water
distribution piping and brine collectors of FRP or polyvinyl
chloride (PVC).
g.
Tank nozzles:
ASME B16.5, Class 150, reinforced FRP or PVC
flanges.
h.
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 25 mm 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.
SECTION 15502N
Page 157
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