agitation tank run density

Agitation Does the scaleup from smaller to larger scale based on criteria like equal tip speed power per unit volume equal Reynolds number equal shaft speed Reactor Geometry

Mar 10 2015 · Baffles are typically mounted 172 of the tank diameter off the wall of the tank and are 112 of the tank diameter in width The optimal installment is comprised of four baffles within a tank but the use of three baffles is sufficient for most applications

Another rule of thumb for air agitation is that mild agitation is considered to be around 05 cfm per square foot of tank surface area and vigorous such as for hard anodizing is going to be around 15 cfm per square foot of tank surface area 05 cfmft2 is plenty for most purposes and anything above that is is probably wasteful

of different agitatorimpeller designs in mixing tanks • Mixing of single and multiphase fluids in stirred tank reactors is a common operation in many industries • Understanding the fluid flow in these tanks is critical for equipment design scaleup process control and economic factors

For the horizontal shaft type the tank should be long and narrow Lb of at least 41 with a square cross section perpendicular to the direction of flow and with depth of about 3 m Tanks incorporating a single vertical stirrer should ideally be square or if rectangular have a ratio Lb not exceeding 115

Mechanical Agitator Power Requirements for Liquid Batches Course Content Mechanical Agitator Power Requirements for Liquid Batches can be determined from the energy balance equation and empirical correlations Figure 1 represents a typical industrial system used for mixing a batch liquid Figures are located at the end of the Course

agitated tank is equipped with a gas scrubber on the exhaust vent using weak wash to knock down particulates and condense steam Raw Green Liquor Stabilization Tank This is an agitated tank designed to have sufficient retention time to even out fluctuations in green liquor temperature and density Including this tank in the flow sheet can

Tank shape and design details are integral parts of the agitator design Dished bottoms and baffles help prevent settling in cylindrical tanks Baffles impart a high vertical component of velocity help eliminate dead zones and can allow high agitator speeds before aeration occurs

density after addition of the pigments Example 85 A turbine agitator with six flat blades and a disk has a diameter of 0203 m It is used in a tank with a diameter of 061 m and height of 061 m The width is W 00405 m Four baffles are used with a width of 0051 m The turbine operates at 275 rpm in a

In tank leaching the ground classified solids are already mixed with water to form a slurry or pulp and this is pumped into the tanks Leaching reagents are added to the tanks to achieve the leaching reaction In a continuous system the slurry will then either overflow from one tank to the next or be pumped to the next tank

mixed adsorption tanks typically 6 to 8 in number Conventional practice is to have a mean pulp residence time of about an hour in each tank The tanks are normally mechanically agitated and each will contain a batch of carbon of concentration 10–25 grams of carbon per litre of pulp 05 to 12 by volume carbon The carbon is retained in each

agitator agitates Iron ore Slurry density in the range of 230 gmcc to 240 gmcc To overcome this problem we are going to redesign whole agitator gearbox assembly Slurry density is major property to generate to high torque on agitator Here we considering the tank is

Mixing Tanks TANK MIXERS AGITATORS DESIGNED FOR YOUR PROCESS TANK Dynamix Agitators has taken its understanding of industrial tank mixers and agitators and applied it throughout its product line Whether you are looking for large heavyduty tank agitators or mixers for bulk containers Dynamix applies the same high quality engineering into its base designs

Tank shape and design details are integral parts of the agitator design Dished bottoms and baffles help prevent settling in cylindrical tanks Baffles impart a high vertical component of velocity help eliminate dead zones and can allow high agitator speeds before aeration occurs

Gold Leaching Agitation Tanks For gold ores agitation periods vary from 16 to 48 hr probably averaging 30 hr and for silver ores nearly twice this period Dilution during agitation varies from 1 of solution to 1 of solids by weight to 3 of solution to 1 of solids occasionally higher probably averaging 2 to 1

Pulp and Paper Agitation is no stranger to LIGHTNIN With over 10000 installations world wide and a strong technical background including world class Research and Development Sites LIGHTNIN is a leader in mixing technology for the Pulp and Paper Market Agitation is critical to many unit operations in pulp and paper mills High Density Storage

Jul 16 2015 · If the agitator is to be run during boiloff due to process requirements and the product does experience an increase in viscosity the agitator must be slowed down to at least half speed Even when there are circumstances that aren’t ideal for mixing agitation can be accomplished when the right operating procedures are followed

As liquid flows through the impeller of a mixed flow agitator the impeller blades push the liquid out away from the agitator shaft and to the agitator suction at an angle greater than 90 o 8 A centrifugal agitator with a single impeller that can develop a differential pressure of more than 150 psi between the suction and the discharge is difficult and costly to design and construct

Agitation Agitation of process tanks by mechanical mixing and air agitation affect both process solution components and increasing agitation affects volatilization and potentially increases misting Mechanical agitation typically will promote volatilization and air agitation both increase volatilization through mild stripping and create misting

At the heart of the HS Agitator is a rightangle drive exclusively engineered for sideentering agitator service Chemineer HS SideEntering Turbine Agitators work efficiently when a tank is too large for convenient installation of a topentering agitator or where headroom is severely limited MR Mixers

Chapter 6 Mixing Mixing a physical process which aims at reducing nonuniformities In stirred tank this period is called the circulation timet c A fermentation broth with viscosity 10−2 Pa s and density 1000 kg m−3 is agitated in a 27 m3 baffled tank using a Rushton turbine with diameter 05 m and stirred speed 1 s−1 Estimate

How does Agitation Affect Gold and Silver Leaching Kinetics Agitation may be considered as the mechanical method of mixing the pulp with an excess of air in circular tanks of sufficient capacity to allow the balance of the gold to dissolve in the cyanide solution These agitators are of various types of construction being divided basically

A photobioreactor PBR is a bioreactor which incorporates some type of light source that may be natural sunlight or artificial illumination Virtually any translucent container could be called a PBR however the term is more commonly used to define a closed system as opposed to an open storage tank or ioreactors are used to grow small phototrophic organisms such as cyanobacteria

tion and tank size and shape As a rule of thumb use 5 to 10 percent of the tank’s capacity for agitation flow For example a 300 gallon tank should have between 15 and 30 gpm of flow into the tank After selection of the agitation flow rate select the correct orifice size required Table 3 Table 3 Tank agitation capacity

This may be due to tank construction and load limitations or even area limitations overhead Although the design of the side entry agitator may sometimes call for larger power installations the impeller to tank ratio to achieve the desired mixingblending or suspension pattern is substantially smaller