What are thickeners & how do they work - Mineral Processing | Thickener Working Principle

Описание: What are thickeners & how do they work - Mineral Processing

For more mineral processing videos visit my YouTube Channel:
http://www.youtube.com/hsrivastav2011...

Description:
The thickener is used to increase the concentra-
tion of the suspension by sedimentation, accompa-
nied by the formation of a clear liquid. In most
cases the concentration of the suspension is high
and hindered settling takes place. Thickeners may
be batch or continuous units, and consist of rela-
tively shallow tanks from which the clear liquid
is taken off at the top, and the thickened suspen-
sion at the bottom.
The feed slurry enters the feed well tangentially through the feed pipe. The feed slurry is pumped or fed by
gravity to the thickener and shall have the energy to aid mixing of flocculant solution with it.
The feed well is sized adequately to take care of the venting of the entrapped air in the feed slurry. The de-aerated and flocculated feed is then discharged through the annular gap formed between the feed well and the
deflector plate at a predetermined velocity into the main body of the thickener.
This ensures the distribution of flocculated feed radially in one plane across the full thickener area, aiding proper
separation of solid liquor.
As the solids settle down, the scrappers of rotating rakes scrap the solids towards the underflow cone for
withdrawal. Liquor component raises to the upper part of the thickener to flow into the overflow launder.
Amazon Affliate Links:

Wills Mineral Processing Book- http://amzn.to/2zeY27U
http://amzn.to/2yEOkZ1

Mineral Processing Plant Design- http://amzn.to/2hX2UWd

Recent advances in Mineral Processing Plant Design- http://amzn.to/2hlrums

Environmental Impact of Mining and Mineral Processing- http://amzn.to/2hY8jMG

Principles of Mineral Processing- http://amzn.to/2ztVdQU

Mineral Processing and Extractive Metallurgy- http://amzn.to/2yksUAT

Mineral Processing Design and Operation- http://amzn.to/2zvByjC

Modeling and Simulation of Mineral Processing Systems- http://amzn.to/2hnsNRI

Understanding Mineral Deposits- http://amzn.to/2hWf2qi

Challenges in Fine Coal Processing, Dewatering, and Disposal - http://amzn.to/2CAUBb1

Coal Production and Processing Technology- http://amzn.to/2AV0cfd

Frothing in Flotation II: Recent Advances in Coal Processing, Volume 2 - http://amzn.to/2AS8tk7