The selection of filter centrifuges is more difficult than that of sedimentation centrifuges. In general, filter centrifuges are suitable for suspensions that are relatively dense and moderate in size and where the mother liquor is viscous. The specific gravity of the liquid and solids does not matter, i.e., both floating and settling suspensions can be handled. However, high specific gravity solids are more difficult to move on the screen than low specific gravity solids.
When selecting a filter centrifuge, the requirements for the filter cake are generally considered first, i.e., the model is initially selected based on the dryness of the solids, the washing effect, and the destruction requirements of the solids. And then based on intermediate tests or actual machine tests to determine the suitability of the selected centrifuge.
If there is a lack of data about the requirements of suspension and filter cake, it should be sought through tests. The slag thickness growth rate of the suspension, i.e. the time required to produce a certain thickness of slag, reflects a combination of factors such as particle size, concentration, viscosity and permeability.
To seek more accurate flow data, the obtained clear mother liquor can be recirculated at different slag thicknesses. A small test tube centrifuge can also be used to obtain certain characteristics of the suspension under the action of the centrifugal force field. For example, the relationship between the moisture content of the filter residue and the separation factor, the thickness of the filter cake, the separation time, etc. can be obtained. Please come to our website and find more centrifuges.
1, Separation of materials mainly involves solid-phase materials or liquid-phase materials.
2, The particle size, density, and hardness of the solid-phase materials.
3, The density, viscosity and surface tension of the liquid phase materials.
4, Affinity, concentration of solid and liquid phase materials, all charge properties (positive or negative charge)
5, Volatility of the material.
6, The flammability and explosive nature of the material.
7, Corrosiveness of the material.
8, The recovery rate of the material.
9, Solid materials for crystalline products, the requirements of the separation of crystalline breakage degree is low, which has special requirements for the structure of the equipment and unloading methods, methods.
10, Nature of sludge: the higher the organic content of sludge, the greater the oil content, the worse the dewatering performance.
11, Sludge treatment volume, for a certain size of centrifuge, the water output effect changes with the increase of sludge treatment volume, in order to achieve the expected goal, it is very important to choose the model with the right treatment volume size according to the sludge volume.
12, Speed difference: its size not only affects the treatment capacity, but also the treatment effect.
FW inverting filter centrifuge is a new type of precise centrifugal filtering equipment featuring automatic discharge, intermittent operation and high performance, which complies with the GMP standards for pharmaceutical production and can realize CIP in-position cleaning, soaking & cleaning and disinfection. Please contact us and get the quote if you need.
