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CAT NO: DIDACTICNLE-Export-031050
Thickner.
Thickner
Industrial sedimentation operations may
be carried out batch wise and continuously in equipment called
thickener. The equipment is a cylindrical tank with openings for a
slurry feed and product draw off. The tank is filled with dilute slurry
and slurry is permitted to settle. Continuous thickeners are large
diameter, shallow depth tanks with slowly revolving rakes for removing
the sludge. The slurry is fed at the center of the tank. Around the top
edge of the tank is a clear liquid overflow. The rake serves to scrap
the sludge towards the center of the bottom for discharge. The motion of
the rake also stirs only the sludge layer. This gentle stirring aids in
water removal from the sludge.
The set-up consists of several basic
components: a tank to contain the slurry, feed piping and a feed well to
allow the feed stream to enter the tank, a rotating rack mechanism to
assist in moving the concentrated solids to the withdrawal points, an
underflow solids-withdrawal system and an overflow launder. A feed tank,
feed pump, and feed tank agitator is provided. A bin for collecting
concentrated
material is also provided.
Experimentation:
To study the working of continuous type thickener.
Utilities Required :
Water Supply and Drain.
Electric Supply: Single phase, 220 V AC, 1.5 kW.
Floor Area 1 m x 1 m.
Slurry (Paper pulp or CaCo3)
Technical Details :
Thickner
: Material Stainless Steel Dia 400 mm, Height 150 mm.
Thickner Agitator
: SS impeller with SS Shaft coupled to FHP motor with reduction gearbox.
Slurry Tank
: Material Stainless Steel, Capacity 100 Ltrs.
Slurry Tank Agitator
: Stainless Steel Impeller with SS Shaft coupled to FHP Motor and Reduction Gear Box
Slurry Feed Pump
: Gear Pump with FHP motor.
Piping system
: GI and PVC.
Control panel Comprises of:
Standard make On/Off switch, Mains Indicator etc.
Instruction Manual
: An ENGLISH instruction manual will be provided along with the Apparatus
A good quality painted rigid MS Structure is provided to support all the parts
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