With the EvenFlo feedwell the feed energy is properly absorbed in the central tank which also serves as a dearation zone where foams and floats …

Attempts have also been made to control the operation of a settler by sampling the incoming feed slurry to the feedwell at regular intervals downstream of the point at which flocculant is added to the feed slurry. The samples thus collected are passed to a laboratory sized gravity separation vessel where representative settling can take place.

U.S. Pat. No. 5,158,679 discloses an oil/water separator with an oil scraper. U.S. Pat. No. 5,047,151 discloses a scum skimming system for circular sedimentation tanks having a central feed and weir, but it also has a bottom scraper. U.S. Pat. No. 5,015,392 discloses a thickener gravity separator with a cone bottom.

The Ovivo ® sludge thickener is designed to continuously produce as thick a sludge as possible from streams of sludge previously formed and collected in separate settling basins. Included with the thickener mechanism are Ovivo's durable heavy-duty drives. The drive is designed to handle the specified torque for 20 years of continuous operation, but we have seen drives still in operation after ...

Gravity Mining manufactures the Richard Mozley Multi Gravity Separator (MGS) often called an Enhanced Gravity Separator (EGC) or Centrifugal Concentrator. Gravity Mining provides mineral testing, process plant design, manufacture of MGS, pumps to …

An inlet device (17) for a separator (18) for separating a fluid mixture including gas and liquid. The inlet device (17) includes an inlet nozzle (1) for the fluid mixture, a distribution chamber (2) connected to the inlet nozzle for distributing the fluid mixture to one or more axial cyclones (3) constituting an integral part of the inlet device (17) and being connected to the distribution ...

The thickening apparatus comprises a tank (2), a feedwell (4), which includes a chamber having an inlet for receiving feed slurry (9) and an outlet in fluid communication with the tank and means for distributing the material in the tank, at least one conduit (5) for feed slurry to deliver a feed slurry (9) into the feedwell, means for diluting ...

A feedwell for a gravity separation vessel for introducing a feed stream such as oil sand slurry to the gravity separation vessel is provided comprising a walled member having an upper perimeter edge, a lower perimeter edge and a substantially continuous wall extending from the upper perimeter edge to the lower perimeter edge; an inlet for introducing the feed stream into the walled member ...

The Knelson Concentrator is a compact hatch centrifugal separator with an active fluidized bed to capture heavy minerals. A centrifugal force up to 60 times that of gravity acts on the particles, trapping denser particles in a series of rings (riffles) located in …

And the fluid volume fraction lying in 60~64 g/L in the feedwell was increased from 3.70% to 14.36% after adopting the self-sucking jet pipe in the feed pipe, which could elevate the homogeneity ...

In the column type a central steel or concrete column takes vertically the reaction to the weight of the mechanism and horizontally the torque load. There is a rule of thumb as to the break even between bridge type and column type mechanisms. For tanks up to 25-30 meter diameter the former type is selected and for larger diameters the later ...

Solid-liquid separation by gravitational settling has long been used in many applications. Gravity thickeners (Figure 1) enable the treatment of vast volumes of dilute slurry that pass through a central feedwell, with the intention of dissipating much of the incoming stream's kinetic energy and gently discharging this stream into

separation by gravity only is so low that for most purposes they appear stable. Se-condary dispersions cannot be separated effectively in gravity or primary separati-on equipment and require different tech-niques for separation. coalescence) and with the bulk phase as this forms and settles from the mixture (drop-interface coalescence).

The term separator in oilfield terminology designates a pressure vessel used for separating well fluids produced from oil and gas wells into gaseous and liquid components. A separator for petroleum production is a large vessel designed to separate production fluids into their constituent components of oil, gas and water.A separating vessel may be referred to in the following ways: Oil and gas ...

ZHOU et al [17] established 3D CFD model to analyze the flow regions of feedwell on an industrial scale and studied the effect of inlet feed rate on the performance of feedwell. They obtained an ...

The feedwell 80 may have one or more baffles 100 located in the lower feedwell section 114 in a position below the upper feedwell section 110. Each baffle 100, as shown in FIG. 4, is connected at one end 130 to the wall 116 of the lower feedwell section 114 and is connected at the other end to a support ring 104 which encircles the drive shaft ...

A feedwell system for delivering a slurry (for example a bituminous slurry) to a separation vessel (for example a primary separation vessel) includes a feedwell barrel with an inlet for receiving the slurry, internal baffles, and a bottom outlet. A downpipe extends from the bottom of the barrel directing the existing slurry onto a deflector plate deflecting the slurry radially and outwardly.

US20050115907A1 US10/507,715 US50771504A US2005115907A1 US 20050115907 A1 US20050115907 A1 US 20050115907A1 US 50771504 A US50771504 A US 50771504A US 2005115907 A1 US2005115907 A1 US 2005115907A1 Authority US United States Prior art keywords chamber feedwell upstream downstream separation Prior art date Legal status (The …

A feedwell for use in a clarifier tank is disclosed which provides improved energy dissipation and reduction of fluid velocity in an influent feed stream to reduce turbulence in the clarifier tank as the influent feed enters the clarifier tank for separation. The feedwell generally comprises a walled member having a substantially continuous wall which is structured to provide an area of ...

Oil and gas separators. An oil/gas separator is a pressure vessel used for separating a well stream into gaseous and liquid components. They are installed either in an onshore processing station or on an offshore platform. Based on the vessel configurations, the oil/gas separators can be divided into horizontal, vertical, or spherical separators.

The efficiency of centrifugal separation will depend on the difference between the specific gravity of the liquid and the solid being filtered. This separation efficiency will increase if the difference is large. The separation efficiency is also affected by the particle size. For most separators, 40 microns is considered the visibility threshold.

A connected and reliable scraper. The robust and compact safety device detects overloads in the tank, an automaton triggers the height adjustment of the rakes reducing the resistance. Thus the scraper operates continuously. Different types of materials depending on your market. Basic stainless steel, 314L, Super Duplex, nickel or titanium ...

Ovivo® bridge supported clarifier units have their sludge removal system hanging from a structural bridge spanning the tank. Wastewater enters through a side feed pipe into the center feedwell. The feedwell boosts flocculation of the suspended solids, which flow out into the clarifier to create a sludge blanket on the tank bottom.

PRINCIPLES OF GRAVITY SEPARATION Jim Thomas Jj All gravity separators utilize the same principles to effect a separation. Once these principles are understood, it is usually a simple step to adjust a gravity separator to produce the optimum sepa­ ration. The term 11 Gravity Separator .. is a contraction of the proper name .. Specific Gravity ...

Patents for B01D 21 - Separation of suspended solid particles from liquids by sedimentation (18,338) 04/2012: 04/24/2012: CA2471034C Method of treating water via ballasted flocculation and decantation

This paper deals with the application of UVP to obtain velocity flow patterns within a pilot-scale "feedwell", a key element of gravity thickeners, in which the incoming feed energy is ...

DELKOR is an industry specialist in solid/liquid separation and mineral processing applications for the mineral, chemical and industrial markets, offering flotation, sedimentation, filtration, screening, and gravity separation systems. ... thickener using a low head axial pump to drive dilution water into the feedwell. ... Central Asia, North ...

Trans. Nonferrous Met. Soc. China 24(2014) 1117âˆ'1124 Numerical simulation of flow regions in red mud separation thickener’s feedwell by analysis of residence-time distribution Tian ZHOU 1,2, Mao LI 1,2, Qiu-long LI 1,2, Bo LEI 1,2, …

Solid-liquid separation of tailings in thickeners relies on the efficient mixing of slurry and dilute flocculant solution in the tube conveying the pulp to the thickener or within the feedwell ...

Evolute™ feedwell upgrade: Carpentaria Gold tails thickener. FL was approached by Carpentaria gold to conduct a performance review of the 22mØ tails thickener with a focus on optimisation and modernisation options to improve gold, water and cyanide recovery. Carpentaria Gold Pty Ltd Ravenswood Operation is located approximately 95km ...

1. Introduction. A gravity thickener, as a piece of efficient solid-liquid separation equipment, has been extensively applied in multiple industries, such as wastewater treatment, metallurgy plants, mineral concentration, and tailings slurry management [,,,,,,,,,,,,, ].For the flocculation-thickening process, the feed stream commonly enters a feedwell first, in which a high ...