The Primary purpose of thickening is to increase the concentration large quantity of suspended solids in the feed stream. It’s function’s very similar to that of clarifier but process result is different. Thickening process involves higher torques than clarificulator. Hence gearbox, and mechanism are of heavy duty.

The basic concept of thickener is it of a tank, means for introducing the feed with minimum turbulence, a drive actuated rake mechanism for moving settled solids to discharge point, a means for removing thickened solids, and a means for removing clarified liquid.

Bridge supported centrally driven thickeners are common up to 15 m dia side given figure shows a typical unit. The drive consist of a worm gear normally mounted on precision bearings and driven through one or more gear reduction by a motor. A vertical driving shaft is attached to the main gear. Normally two long and two short arms are attached to centre shaft. The long arms have sufficient blades to scrape the bottom twice per revolution. Short arms are provided to rake the inner area for times per revolution and balance mechanism. Cone scrapers are bolted to the centre shaft to prevent plugging of bottom discharge cone.


Steel Industry
Blast Furnace, Electric Arc Furnace, BOF, etc

Fertilizer Industry
Phosphate Rock Dryers & Calciners, Dryers

Copper Reverberatory Furnace, Laea Blast Furnace

Pulp & Paper
Lime Kilns, Back Liquor Recovery, Bark Boilers

Sugar Industry
Boiler Flue Gas, Bagging Section

Mineral Products
Asphalt Stone Dryers, Cement Kilns

Tablet Coating Fans, etc


Cyclone Separator

Multiclone Dust Collector

Venturi Scrubber

Packed Bed Scrubber
Rotary Air Lock Valve
Double Cone Valve
Floating Aerator
Flash Mixer
Pressure Sand Filter
Activated Carbon Filter
Dosing Pump
Fixed Surface Aerator
Industrial Fans
Pneumatic Conveying Systems
Karyasiddhi Environmental Engineering Co. Pvt. Ltd.
403, The Crescent Business Park, Saki Naka Telephone Exchange, Off Andheri-Kurla Road, Safed Pool,
Mumbai - 400072. Maharashtra,India. Tel : (022) 28515724 / 28592291