The fixed bed centrifugal filter is thus a batch-operated device for recovering solids from liquid suspension. All types have cylindrical baskets, open to the atmosphere (or to the enclosing casing) at one end. Filtrate passes through the filter medium and the developing cake, into the casing and so to a filtrate receiver. The formed cake […]
Centrifugal separations are of two broad kinds, those using filtration and those operating by sedimentation. The latter are covered in Section 7, while centrifugal filters are the subject of this part of Section 3. Also broadly classifiable into two types, centrifugal filters, which are essentially devices for recovering solids from liquid suspensions, are defined by […]
The vacuum belt filter employs a continuously moving horizontal belt of filter medium, commonly of woven wire mesh, moving between two rollers. In the forward direction, a suspension, of medium to high solids concentration, is fed onto the upper surface of the belt close to one roller. The cake formed in the feed zone is […]
In the production of edible oils from oil seeds and oil-rich fruits it is necessary to process the crude oil to separate pure oil (olein) from the crystalline solids (stearin), the amount of each depending on the temperature of the process. The growing importance of palm oil processing meant that the traditional rotary vacuum filter […]
Original Written By Demi Moore Trump’s mid-east trip is capturing international curiosity and arousing regional intension in Arabian Peninsula. One of the outcomes of USA president’s visit is Qatar was isolated by Uncle Sam’s Arabian allies, amid aviation and diplomatic blocking, except Iran. Though Qatar denied all the allegations to funding radical Islamist, it didn’t make […]
Unlike the other horizontal belt filters, the (paper) band filter is a device used for clarifying machine tool and similar coolants and lubricants free of contaminants. It began as a means for holding a sheet of paper through which the oil/water emulsions could flow, and has developed into quite a sophisticated continuous filter. An automatic […]
Horizontal belt filters working on the vacuum principle were originally developed for process applications where intensive washing is required, but are now also employed for a wide variety of filtering requirements. They have become such a versatile processing tool that they have taken a considerable share of the market from the former workhorse of the […]
The capillary disc filter looks like any other standard rotary vacuum disc filter, as can be seen in Figure 3.25 , but the filter medium is a finely porous ceramic disc, which draws filtrate through the disc material by capillary action, under the applied vacuum. The filter discs are made of sintered alumina with uniform […]
Rotary disc vacuum filters have the advantage, compared with rotary drum filters, of giving a much larger filter area per unit of floor area. They are thus particularly suitable for the processing of bulk products, for example in coal preparation, ore dressing, pulp and paper processing, and so on. The principle of construction of a […]
The rotary pressure drum filter is basically a rotary drum filter enclosed in a large pressure shell, with suitable means for getting the feed suspension and any wash liquors in through this shell, and the filtrate and filter cake out of it. This results in a complex piece of machinery, as a glance at Figure […]
