What is Tickner?
Tickner is designed and built to treat effluents from mines such as iron, copper, aluminum, stone cutting, ceramic tile factories and sand washing.
Since the effluent of these industries contains suspended particles and high TSS, it is possible to use purified water in the production line by designing and manufacturing Tickner, and to create high savings in the operating costs of production units.
In the design and construction of the thickener, the inlet effluent has high solids and due to the density difference between the particles and the liquid, these particles settle and separate from the bottom of the tank in the form of condensate flow or under flow. The treated water is discharged during the overflow
In general, in the design and construction of Thickner, using mathematical modeling and engineering software, the diameter and height can be calculated .
Types of thickeners
Tickner ordinary
Yknr page
lamella thickener
Tickner cone
Tickner deep
Tickner high rate
Thickner mechanism of action
By settling solid grains in a pulp, a clear liquid and a thickened pulp are obtained. The rate at which solid grains settle in a fluid can be obtained, depending on the grain size, using Stokes and Newton’s laws. The sedimentation rate of very small grains in microns is very low due to their weight. Therefore, it may be necessary to use centrifugal force to speed up their fall. Environmental conditions can also be adjusted so that the fine particles adhere to each other (under the influence of Van der Waals force) and settle faster (Coagulation) or flocculants can be used faster. Sedimentation should take place. This process is called flocculation.
Gravity settling by thickening is the most common method of rinsing materials in ores. This method is relatively cheap and has a large capacity. Sedimentation operations take place in ponds called thickeners. As a result of the deposition of solid grains, a layer of clear water forms in the upper part of the thickener. In most cases, the pulp concentration inside the thickener is high and the granulation of the grains occurs in the conditions of “fall with an obstacle”. The thickened pulp also comes out of the lower part of the thinner. Thickeners can work both continuously and intermittently.