Author: waterfiltech

A huge volume of solids is processed by means of vibratory screens. These can be either horizontal or gently inclined, and they incorporate the use of vibratory motors to achieve…

The simplest form of size classification is the hand-held test sieve, fitted with a piece of precise wire mesh, and used to classify a sample of solids into two ranges…

Well screens are sleeve-like units fitted over the ends of intake pipes in water or oil wells. They well illustrate the nomenclature problem outlined at the start of this chapter…

All of the intake screens discussed so far have operated in a stationary mode (or at least stationary whilst screening). An important group of screens rotate, screening solids continuously through…

A different form of stationary water intake from surface water sources, such as submerged intakes for power, pulp and paper, or petrochemical industries, uses cylindrical screens at the inlet of…

A wide range of screens is used for the removal of solids from water in large-scale water handling systems. Where water is pumped from rivers or lakes (or from the…

As the term is most commonly used in filtration technology, a screen serves two prime functions: as a large strainer, especially for water intakes and in wastewater treatment, and as…

Perforated plate strainers provide coarse filtration down to about 150 um. For finer filtering, wire mesh elements are normally used in conjunction with perforated plate or other form of reinforcement, when…

An obvious disadvantage of a permanent strainer of the types just described is the need to shut down the plant flow so that they may be cleaned. Where continuous operation…

Permanent strainers are conventionally complete fittings, most commonly with a housing of Y-configuration, with a cylindrical strainer element (as in Figure 3.2 ). They can be used in both the…