The FoamEx foam breaker is located on top of the foam tank and destroys the foam mechanically by creating a partial vacuum through rotation of the conically shaped rotor. The liquefied foam, which is heavily load-ed with ink and dirt, is discharged at the top of the cone.
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DEINKING ECO CELL FLOTATION MACHINE hydrophobic contaminants. • Separation of ink-laden bubbles from suspension. The above three steps are carried out by the aeration element (also called the injector or diffusor) and the flotation cell tank. While the aeration element injects air and allows through mixing of air bubbles into the stock, the tank
MAK-C™ Flotation Cell for Deinking. Based on more than three decades of Kadant innovation and expertise in advanced flotation technology, the MAK-C compact flotation cell offers maximum yield and efficiency. The operating principle is based on the combined multi-stage effect of our unique tank flotation and column flotation using different ...
INTRODUCTION Flotation deinking is a separation process in which swarms of small air bubbles rise through agitated liquid tanks with suspended cellulose pulp and contaminant particles; the bubbles preferentially attach to naturally or chemically hydrophobized contaminant and ink particles, carrying them to a froth layer at the surface of the ...
flotation deinking deinking flotation Prior art date 1989-10-16 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Fee Related Application number DE1990627181 Other languages German (de) Other ...
Flotation cell, Air inflation flotation cell, Flotation. SF flotation cell is a mechanical agitation type flotation equipment with self-slurry suction and self-air suction. Effective Volume. 0.3720m 3. Product Improvement. Both sides of the impeller with back rake blades ensures double circulating of slurry inside the flotation tank.
Keywords: flotation deinking, paper recycling, secondary fibers, fiber rejection loss, froth drainage ince its introduction to the industry in the 1980s, the froth S flotation process has been widely employed by the pulp and paper industry for removing ink from recovered secondary fibers.
1500 LITRE VOITH PILOT FLOTATION DEINKING CELL MACHINE. Manufacturer: Voith 107233 One (1) 1500 Litre Voith Pilot Flotation Deinking Cell, Wetted surfaces 316 S/S, Includes 5 HP impeller drive 3/4 HP foam paddle drive @ 440 Volts.6 inch inlet 3 inch drain Sn: 296 Capacity is 1500 litres ...
Flotation can be performed in rectangular or cylindrical mechanically agitated cells or tanks, flotation columns, Jameson cells or deinking flotation machines. Mechanical cells use a large mixer and diffuser mechanism at the bottom of the mixing tank to introduce air and provide mixing action.
857 flotation deinking machine products are offered for sale by suppliers on Alibaba.com, of which paper product making machinery accounts for 1%. A wide variety of flotation deinking machine options are available to you, such as egypt, south korea, and indonesia.
Recirculatory flow in a column or tank is easily established in the buoyant flow system of flotation deinking. The tendency is for the gas to rise toward the center of a column (or local buoyant cell) with liquid flow returning downward at the walls of the column (or at the edges of buoyant cells).
In addition to the type and amount of the chemical deinking materials used to accomplish deinking, which may vary with the type of ink found in the waste paper, other factors that can cause fluctuations in the amount of froth produced in flotation deinking systems include the hardness of the water used to prepare the pulp slurry, the pH of the ...
Jan 16, 2017 Flotation was carried out for 10 min at pH 7 and a temperature of 30 C at a constant air flow rate of 10 L/min through the orifice at the bottom of the flotation tank, as monitored by a flow indicator (FI), and a constant air pressure of 1 kg/cm 2, monitored by a pressure indicator (PI).Various air flow rates were also used to determine the effect of viscous flow on deinking performance.
The output from the flotation system is controlled by the level in the foam tank, which provides the most accurate and reliable measurements. A constant level of de-aerated liquid eliminates the risk of malfunctions by the level transmitter.
Flotation deinking is a complex process. A better understanding of its fundamentals would help in developing models that can predict whether a given process change would help or hinder flotation...
The output from the flotation system is controlled by the level in the foam tank, which provides the most ac-curate and reliable measurements. A constant level of de-aerated liquid eliminates the risk of malfunctions by the level transmitter. Precise control of the feed flows to the flotation cells and the accept flow from the se-condary stage allows stable operation without any undesirable variations in …
Froth flotation deinking operators tend a tank that takes in recycled paper and mixes it with water. The solution is brought to a temperature around 50 C Celsius, after which air bubbles are blown into the tank. The air bubbles lift ink particles to the surface of the suspension and form a froth that is then removed.
Froth flotation deinking operators tend a tank that takes in recycled paper and mixes it with water. The solution is brought to a temperature around 50 C Celsius, after which air bubbles are blown into the tank. The air bubbles lift ink particles to the surface of the suspension and form a froth that is then removed.
Flotation sensors allow the foam head to be maintained at the stock level by controlling the rate foam is withdrawn through the foam outlets. US5840156A - Froth flotation process for deinking wastepaper using multiflow pressurized deinking module - Google Patents Froth flotation process for deinking wastepaper using multiflow pressurized ...
Describes flotation deinking of secondary fiber using a froth moderating agent, a composition of the froth moderating agent with flotation deinking chemicals, and reducing the amount of stickies in separated secondary fiber. The froth moderating agent is selected from the group consisting of: (a) nonionic surfactant material represented by the formula: R-C6H4O-(C2H4O)m-(C3H6O)n-(C4H8O)p …
Semi-Empirical Modelling and Management of Flotat ion Deinking Banks by Process Simulation 123 Q g is the gas flow, an empirical parameter, S is the cross sectional area of the flotation cell and K n is an experimentally determined parameter including particle/bubble collision dynamics and physicochemical factors affecting particle adhesion to the bubble surface.
The DFP 4000, developed by Voith, is a compact unit that integrates several elements of the flotation deinking system. This combines the pump and deaeration machine into one unit. The deaeration foam pump replaces the foam destroyer, foam tank, stirring unit, and pump and costs less than the current suite of equipment.
The MAC flotation cell is mainly used in the flotation section of waste paper deinking pulping, for removal of hydrophobic impurities such as filler, ash, ink particles, etc. It can increase pulp whiteness and meet the requirements of final paper appearance quality. Table 11.11 shows the features of MAC flotation cell.
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