Beginners Guide to Thickeners Thickening is a process where a slurry or solid liquid mixture is separated to a dense slurry containing most of the solids and an overflow of essentially clear water (or liquor in leaching processes).
14 Flocculant dilution effects on flocculation in mineral processing Phillip Fawell Flocculant sparge Feed Flocculant sparge Feed Some designs/operating conditions lead to poor contact or low residence times. Performance poor higher dosages. Potential to discharge unadsorbed flocculant detrimental to downstream processes.
Mineral thickeners. Mineral thickeners are naturally occurring, mined ingredients that can absorb water or oils and boost viscosity. They give a different kind of viscosity than the natural gums. Materials include Silica, Bentonite, and Magnesium Aluminum Silicate. These thickeners can be used to thicken oils as well as water based formulations.
One more thing though water quality for both flocculent dilutions and within the thickener Usually hot or warm water is used for first dissolution of flocculent. Or an active spraying system at the same dissolution moment. If one of those is missing, there might be nods in the flocculent
Most tailings thickeners utilize an automatic flocculent dosing system that takes samples of feed well water and carries out an automatic jar settling test. This is so important where multiple coal/ore types are processed through the plant because of different settling rates and characteristics.
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By adding flocculants and increasing the depth of the solids bed in thickeners, higher degrees of separation can be achieved. At low concentrations solid liquid mixtures behave like a liquid (described primarily by a viscosity) and at high concentrations they can be better described as a paste or plastic with yield stress the best descriptor.
Methods and materials. Cumulative flocculent use was calculated for ore and surface chemistry disturbances in closed circuit control (Fig. 3). To simulate these disturbances we focused on two gains the controller gain for flocculent dosage and the plant transfer function gain for the phosphate thickener.
PavFloc 8 20 is a highly active, high molecular weight anionic flocculent in a concentrated liquid form. It works effectively as a coagulation aid or sludge conditioning agent in liquid solid separation processes.
High capacity thickener operates on the principle of using the polyelectrolyte polymers more efficiently than in a conventional thickener. It has a flocculent mix chamber, inclined settling plates and automatic sludge level control system.
Thickener Operation During thickener operation, feed enters the feedwell, via a feed pipe or open launder. In order to promote settling, it is increasing to dissipate this energy. In some cases, flocculants or coagulants are added to the feed to agglomerate particles
A thickener has 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 rake mechanism to assist in moving the concentrated solids to the withdrawal points, an underflow solids withdrawal system, and an overflow launder.
A slurry gravity thickener designed with tilted plate in sedimentation area Sedimentation Area 203500m 2 Product Improvement The stirring device is installed in the center of tiled plate thickener; the vibrator is installed on the outer wall of cone to accelerate the thickening and avoid blockage.
These system are highly customised and available in plug and play type. Customised design Available in all sizes sing Optimal recovery Low power consumption Low footage for installation No wastage and blocking . Low maintenance Manual and fully automated system and is User friendly system.
Improvement New mechanical structure, strengthening the flocculation of solid particleand supplying flocculent adding system Produced by introducing American technique Peripheral Transmission Thickener
Thickener Tank Application. Efficient thickener is widely applied in metallurgy, mines, coal, chemical industry, building materials, environmental protection and other departments, which has significance for improvement of water returning utilization rate and underflow conveying concentration.
Adding the flocculants to increased sedimentation particle size, thus speeding up the sedimentation velocity. Adding the degassing tank to prevent solid particles attached to the bubbles Setting material receiving plate and cylinder moving down, the feeding evenly and steadily falling, effectively prevent the occurrence of the splashing.
The hydrocarbon tail needs to be short to maximize the selectivity of the desired mineral and the headgroup dictates which minerals it attaches to. The frothers are another important chemical addition to the pulp as it enables stable bubbles to be formed. This is important as if the bubble coalesce, minerals fall off their surface.
In the thickening process of a mineral plant, the agent system needs to add additionally, which increased the cost and increase consumption. Xinhai efficient thickener can supply agent affixation system, such as flocculating agent, the facilities supporting is more obvious.
Flocculant adding system can be provided, as well as the automatic control systems of flocculant adding and high efficiency thickener. Application It can be widely used for the treatment of slime, waste water, and waste residue in metallurgy, mining, coal, chemical It is widely used in metallurgy, mining, coal, chemical \r\n\r\nindustry
Xinhai is a professional manufacturer of thickener with great thickener design, including Efficient Deep Cone Thickener, Peripheral Transmission Thickener, etc.
Adding the flocculants to increased sedimentation particle size, thus speeding up the sedimentation velocity. Adding the degassing tank to prevent solid particles attached to the bubbles. Setting material receiving plate and cylinder moving down, the feeding evenly and steadily falling, effectively prevent the occurrence of the splashing.
Flocculation, in the field of chemistry, is a process in which colloids come out of suspension in the form of floc or flake, either spontaneously or due to the addition of a clarifying agent.The action differs from precipitation in that, prior to flocculation, colloids are merely suspended in a liquid and not actually dissolved in a solution.In the flocculated system, there is no formation of
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Thickeners are utilized in mineral processing for the purpose of solid liquid separation consisting of clarified water and the second stream being a slurry . 8.5 Underflow Handling . . Mechanical raking to release water trapped in the
Advanced Thickener Control. However fluctuations in ore type cause random changes in the required flocculant dosing. With PID loop control the thickener inventory can be controlled through feedback from either bed level or Clarometer and flocculant dosing can