The Equation Describing the Filtration Process with Compressible Sediment Accumulation on a Filter Mesh

Piecuch, T.; Piekarski, J.; Malatyñska, Grażyna

doi:10.2478/aep-2013-0009

Cited by 5 publications

(2 citation statements)

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“…(10) we obtain Considering that k = k 1 + k 2 we obtain dependence (12) that is the fundamental equation for determining the screen blocking coefficient in time t.…”

Section: Mathematical Model Of Sieve Holes Blockingmentioning

confidence: 99%

“…The issue of sieve holes blocking is not the only problem of this kind encountered in engineering processes used in broadly defined minerals processing. In all processes of filtrating, mixtures containing postmanufacturing contaminated water, originating from water and sludge circuits, there is also blocking of holes in the filtration mesh and the blocking of the filtration deposit pores [12]. Sieve holes blocking is to a large degree a random process that is difficult to describe.…”

Section: Introductionmentioning

confidence: 99%

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Mathematical and empirical description of screen blocking

2016

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This paper addresses the process of sieve holes blocking taking place while screening fine-particulate materials and provides an analytical description of the phenomenon. Empirical tests performed as part of this research provided dependences specifying the parameters of sieve holes blocking that could be applied in practice. The process of sieve holes blocking is unfavourable and inevitable. It is related with the screen clearance coefficient which is one of the fundamental characteristics of all screens. The grains whose dimensions are similar to the dimensions of the sieve holes block those holes, causing their exclusion from the active surface area of the screen. This phenomenon results in diminished performance and efficiency of the screening process. Screening is a very common industrial practice, and various designs of screens and types of sieves are available. That is why the subject of this paper is so important. The screen blocking coefficient is the measure of sieve holes blocking. In order to describe the process of screen blocking, a mathematical model is presented and a method for determining the screen blocking coefficient is proposed. Furthermore, the authors list the factors that have a significant influence on the degree of sieve holes blocking, i.e. the shape of the screened material, the toss indicator and the content of hard-to-screen grains in the feed. This paper is the first one to have thoroughly described the issue of screen blocking. B Lawinska Katarzyna

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“…(10) we obtain Considering that k = k 1 + k 2 we obtain dependence (12) that is the fundamental equation for determining the screen blocking coefficient in time t.…”

Section: Mathematical Model Of Sieve Holes Blockingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%