Automatic Continuous Operation 3Phase Liquid-liquid -solid Separation LWS Tricanter Centrifuge

Automatic Continuous Operation 3Phase Liquid-liquid -solid Separation LWS Tricanter Centrifuge

Brief introduction of the Automatic Continuous Operation Tricanter Centrifuge

Decanter centrifuge uses the centrifugal sedimentation to separate the suspension, uses the spiral to unloading material.It is continuously charging, separating, discharging at full speed.It is used in the suspension(in 0.0005~2mm, concentration 2-40%) solid-and-liquid separation, size classification, liquid clarification .Especially ,it issuitable for the suspension separation that with difficult in filter cloth recycling, and the material with large concentration and big size range.

Operation principle of the Automatic Continuous Operation Tricanter Centrifuge

The operating principle of a decanter centrifuge is based on separation via buoyancy. Naturally, a component with a higher density would fall to the bottom of a mixture, while the less dense component would be suspended above it. A decanter centrifuge increases the rate of settling through the use of continuous rotation, producing a G-force equivalent to between 1000 and 4000 G's. This reduces the settling time of the components by a large magnitude, whereby mixtures previously having to take hours to settle can be settled in a matter of seconds using a decanter centrifuge. This form of separation enables more rapid and controllable results.

3-phase separation with a decanter

With a 3 phase decanter centrifuge, it is possible to separate 3 phases from each other in one process step only. For example, two liquids which cannot be mixed because of different densities (e.g. oil and water) are separated from a solids phase. The heavy liquid (water) collects in the middle between the oil and the solids layer. Thus the two liquids separated from each other can be drawn off from the decanter. The solids are transported via the scroll to the discharge openings as it happens also in 2-phase separation.

Range of applications:

The main application of decanter centrifuges is to separate large amounts of solids from liquids on a continuous basis. They are also used to wash and dry various solids in industry, such as polystyrene beads, clarify liquids and concentrate solids.

Typical applications of 3-phase separation are the production of edible oils such as olive oil, oil sludge processing, the production of biodiesel etc.

Decanter centrifuges process characteristics:

The separation process in a decanter centrifuge relies on a few process characteristics such as centrifugal force or G-force, sedimentation rate and separating factor, differential speed between the conveyor and bowl, and clarity of the liquid discharge.

Decanter centrifuges require a centrifugal force for the separation of the solids from the liquid. This characteristic is dependent on the radius of the centrifuge and its angular rotational speed. A decanter centrifuge applies a force equivalent to several thousand G's, which reduces the settling time of the particles. It is also favoured to maintain a large G-force, which will result in an improved separation.

The rate at which sedimentation occurs is an important characteristic of the decanter centrifuge separation process. The sedimentation rate is influenced by the particle size, the shapes of the particles, their density differential between solid and liquid and the viscosity of the liquid. This process characteristic can be improved by utilizing flocculating agents. The sedimentation rate is also dependent on the separating factor of the decanter centrifuge, which is related to the centrifugal force.

The exterior bowl and the scroll conveyor rotate at different high speeds. This differential speed between the two is accountable for the sedimentation throughout the decanter centrifuge cylinder. A high differential speed results in a smaller residence time of the cake settlement, so it is necessary to keep the cake thickness to a minimum to avoid impairing the discharge quality. Keeping the cake thickness to a minimum also aids in the improvement of the cake dewatering process. For this reason, it is necessary to obtain an optimal differential speed to balance the cake thickness and quality.

The characteristic above all affects the clarity of the liquid output which is dependent on the volumetric throughout rate,where a higher flow rate will result in a poor liquid clarity. Another characteristic that influences the clarity of the liquid output is the differential speed. A low differential

speed results in a better clarity, therefore, aiding in the separation process. The G-Force also plays a role in the clarity of the liquid discharge. Higher G-force results in an increase in the separation of the solid particles from the liquid and yields a better clarity.

Basic Technical Parameters Of The Automatic Continuous Operation Tricanter Centrifuge

Export package and shipping :

We provide you reliable and fast package and variety kinds of transportation way to insure you get the goods in time and safely.

Our service:

1. We have professional person on line to advise you the most suitable type of machie for according to your requirement.

2. Provide you comprehensive.easy-understanding and detail information and technical data about the machie you interested;solve your confusions or questions about the machine

3. Arrange the schedule if you pay a visit to our factory.