description de l hydrocyclone classifieur
Prediction of separation performance of hydrocyclones by …
The separation performance of hydrocyclone is affected by many variables, the values of which have to be selected carefully for achieving the optimal design and operation of such a separator. This selection can be done by either empirical or numerical model. The empirical model provides convenience for industrial use by simply …
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Définition de hydrocyclone | Dictionnaire français
Un hydrocyclone est un dispositif de séparation utilisé dans diverses industries, notamment la sidérurgie et le forage. Il fonctionne sur le principe de la force centrifuge pour séparer les particules solides d'un liquide ou deux fluides de densités différentes. Le processus commence par l'introduction du fluide dans une chambre ...
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(PDF) The hydrocyclone classifier — A numerical …
A user-oriented mathematical model of the hydrocyclone classifier is described. The model uses state-of-the-art numerical techniques to solve the discretised form of the Navier-Stokes equations ...
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Separation performance of hydrocyclones with medium …
Abstract. The inlet section of hydrocyclone has a significant effect on separation efficiency. However, in most existing studies the inlet of conventional hydrocyclones (CH) only serves as a channel for the mixed liquid to enter the hydrocyclone body. Based on CH's tangential inlet with a rectangular section, a novel …
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Solid/liquid separation performance of hydrocyclones with …
The multiphase flow in a hydrocyclone is quite complicated. In this work, pressure and velocity fields of the hydrocyclones with different cone combinations were numerically simulated using FLUENT computational fluid dynamics (CFD) software. Some works of simulation of. Hydrocyclones. Three hydrocyclones are designed as that …
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Flow Pattern in Hydrocyclones | SpringerLink
Since the flow enters at the periphery and top of the hydrocyclone and leaves through the top and the bottom of the vessel at its center, there is a three-dimensional fluid motion, called vortex motion, with tangential, axial and radial velocities.The vortex motion produces a low-pressure zone in the center of the device that sucks air …
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Hydrocyclones: Analysis and Applications / Edition 1 by L.
Edition description: 1992: Pages: 421: Product dimensions: 8.27(w) x 11.69(h) x 0.24(d) Table of Contents Fundamentals and New Areas.- Bradley Hydrocyclones: Design and Performance Analysis.- ... The Effect of Rheology on the Performance of Hydrocyclones.- Development of a Cyclonic De-Gassing Separator for …
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Hydrocyclone Selection | SpringerLink
The first is used to select commercial hydrocyclones that fulfill given capacity and classification conditions and the second, based on experimental work, is used to …
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HYDROCYCLONES
The hydrocyclone is a simple piece of equipment that uses fluid pressure to generate centrifugal force and a flow pattern which can separate particles or droplets from a liquid medium. ... The terms "bottom" and "top" in this context are used only to simplify …
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HYDROCYCLONES
Guide alphabétique, de la thermodynamique, amplification de chaleur, transfert de masse, et dynamique des fluides ... The terms "bottom" and "top" in this context are used only to simplify the description. A hydrocyclone can work upside down or with an inclined or horizontal axis. Figure 1. Schematic representation of the spiral flow.
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What is a hydrocyclone used for and how does it work? |
What is a hydrocyclone used for? A hydrocyclone is a simple cone-shaped cylindrical container that has no moving parts. It is used to separate or "cut" solid particles …
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Experimental study on the separation performance of air-injected de …
A new type of hydrocyclone, air-injected de-oil hydrocyclone (AIDOH), was developed. It is shown in Fig. 1. It has a similar structure to normal hydrocyclones, but an outer shell was added to the vortex cavity, large cone section, or fine cone section. This was made by a type of micro-pore material. Download : Download high-res image (126KB)
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Algorithmes de classification : ID3 & C4.5
Le but du présent rapport est de présenter deux algorithmes utilisés dans le cadre du datamining. Dans un premier temps nous présenterons l'algorithme classique qu'est ID3, nous aborderons cet algorithme qui est un algorithme d'apprentissage supervisé, puis forts de cette étude nous aborderons plus en détails C4.5 Celui-ci étant une extension …
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The hydrocyclone classifier — A numerical approach
A user-oriented mathematical model of the hydrocyclone classifier is described. The model uses state-of-the-art numerical techniques to solve the discretised …
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Cyclones & Hydrocyclones – Visual Encyclopedia …
In general, cyclones use centrifugal force to separate particles in a gas or liquid stream. In hydrocyclones, the liquid is the fluid medium. There are two design classifications for cyclones. Uniflow or swirl tube cyclones are …
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(PDF) Combinaison de classifieurs
de la combinaison. Figure 1. Schéma de combinaison parallèle de. classifieurs. 2.1 Définition et types de sorties d'un classifieur. Un classifieur est un outil de reconnaissance qui. reçoit ...
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Hydrocyclone (with Ceramic or Rubber lined) | GTEK
Description. Hydrocyclone is a continuously device that utilizes centrifugal force to accelerate the settling rate of particles. GTEK FX Series Hydrocyclones have a metal shell and optional lining of ceramic and rubber. Rubber lined hydrocyclone is the most commonly used type of hydrocyclone, GTEK offers the most wear resistant rubber liner ...
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Phenomenological Hydrocyclone Models | SpringerLink
The structural and operational simplicity of a hydrocyclone hides the high complexity of its classification mechanism. Efforts to describe hydrocyclone behavior …
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CHAPITRE 12 Métriques et évaluation des classifications
Ces différentes techniques seront mises en pratique pour évaluer un modèle d'arbre de décision servant à prédire la survie à bord du Titanic. Matrices de confusion. Les matrices de confusion servent à évaluer les performances d'un classifieur. Un classifieur binaire ne permet que quatre résultats de classification : vrais positifs ...
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HYDROCYCLONES
The hydrocyclone is a simple piece of equipment that uses fluid pressure to generate centrifugal force and a flow pattern which can separate particles or droplets from a liquid medium. ... The terms "bottom" and "top" in this context are used only to simplify the description. A hydrocyclone can work upside down or with an inclined or horizontal ...
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Hydrocyclones: Analysis and Applications
The papers cover a wide span of activities, from fundamental research to advances in industrial practice and, as in the earlier volumes, make a significant contribution of lasting value to the technical literature on …
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Classification naïve bayesienne
Jusqu'à présent nous avons établi le modèle à caractéristiques indépendantes, à savoir le modèle de probabilités bayésien naïf. Le classifieur bayésien naïf couple ce modèle avec une règle de décision. Une règle couramment employée consiste à choisir l'hypothèse la plus probable. Il s'agit de la règle du maximum a ...
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DEOILING HYDROCYCLONES
PROCESS DESCRIPTION The deoiling hydrocyclone vessel is designed to reduce the oil content of the incoming produced water prior to entering an optional degasser vessel. The hydrocyclone arrangement allows easy access to the liners for inspection, installation and replace-ment. On entering the cyclone tangentially, the fluid begins to spin.
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HCH hydrocyclone | TH
HCH and HCM hydrocyclones feature an innovative design that reduces turbulence, thus minimising wear and ensuring finer and more precise separation of particles at high treatment capacities. The HCH hydrocyclone features a modular design and is built of steel components with a wear resistant vulcanised lining. The HCM hydrocyclone also …
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Developing a new approach for evaluating a de-oiling hydrocyclone …
Abstract. In this study, a new mathematical approach for evaluating of a de-oiling hydrocyclone efficiency has been developed. This new model uses the flow pattern of disperse phase and the boundary layer separation theory. In the present model unlike the other existing models, it is assumed that the droplet concentration in the radial ...
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Comparaison de méthodes de classification réseau RBF, …
A. Étude comparative Plusieurs travaux ont été élaboré par des auteurs qui ont pour objectif de comparer les différents types des réseaux de neurones [1, 14, 15]. En se basant sur ces ...
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Hydrocyclones
Abstract. This chapter gives a brief synopsis of hydrocyclones in theory and in practice, including basic design, characterization of performance, models, scale-up and …
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14 -Description de la création du classifieur pour la …
Download scientific diagram | 14 -Description de la création du classifieur pour la décision globale en fonction des attributs de mise en correspondance from publication: Système de sécurité ...
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Effet de la concentration en solide sur les performances de …
Ce tube traverse tout l'hydrocyclone et a un diamètre équivalent à 75% de la buse de sousverse (Davailles, 2011), ce qui dans notre cas est égal à 0,006m. Il est représenté en hachures sur ...
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Hydrocyclones for De-oiling Applications—A Review
Abstract The de-oiling hydrocyclone is a device for liquid–liquid separation and production water cleanup. Significant progress has been made in the development of such a device since its first introduction and use in the late 1970s. The present article is a literature review of development and research work performed so far on de-oiling …
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