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tank of agitator calculation

Agitator Power Requirement

Assuming turbulent flow, Pumping number Nq is estimated based on generic agitator curves. Agitator speed is then determined using relation Nq = Q/ND 3, where N is the Agitator speed. Reynolds number is calculated using relation, Re = D 2 Nρ/μ and a new Pumping number is

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[How To] Select a Motor Capacity for Agitator - Pharma ...

Equate Batch Volume to the basic equation pi/4 x D x D x D., by replacing the Vessel Dia with Equivalent Dia, i.e., V = ( pi/4 ) x Teq x Teq x Teq. Then, Teq = CubthRoot ( 4 x V/pi ) Agitator Dia ( D ) = D/T x Teq. Bulk Velocity ( Vc ) = 6 x Scale of Agitation ft/min. = 0.03048 x Scale of Agitation m/sec.

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A GUIDE TO OPTIMIZING IN-TANK AGITATION

• Heavily soiled tanks: up to 20 turnovers per hour • Critical cleaning tanks: more than 20 turnovers per hour 2. THEN CALCULATE THE NEEDED FLOW RATE Multiply the appropriate turnover rate by the tank volume and then divide by 60 Example: 10 x 800 (3028.3) = 8,000 gph (30,283 l/hr) turnover tank volume rate in gallons per hour (liters)

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Mixing Calculators - WMProcess

These are made available to help you do preliminary mixer sizing, mixtank volume calculations, some mixer mechanical design calcs, etc. The mixer selection program allows you to calculate flow rates and power draw of mixing impellers, see what the agitator will provide for tip speed and tank turnovers per minute, and give you some rough estimates on tank mixer sizings.

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Estimation of Agitator Flow Shear Rate

Apr 07, 2006  the whole tank is proportional to the rotational speed of the impeller, that is, ˙ K S N (1) where K S is a nondimensional constant, dependent on impeller geometry, and N is the shaft speed (rev/s). This concept has since been widely accepted and used in non-Newtonian fluid mixing studies.2-8 In the original work by Metzner and Otto,1 the flow of a

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Agitation Scaleup Calculation

Agitator Diameter : D: mm: 400: 300: Equivalent Diameter : Teq = (4.V/π) 1/3: mm: 400: 300: Scaling Exponent : n: 2: Shaft Speed : N: rpm: 400: 300: Reynold's No. Re = D 2.N.ρ/μ: Tip Speed : π.D.N: m/s: Flow Number : Nq: Pumping Rate : Q = Nq.N.D 3: m 3 /s: 400: 300: Power Number : Np: Power Drawn : P = Np.ρ.N 3.D 5: kW: 400: 300: Power/ Volume : P/V: kW / m 3: 400: 300: Froude Number : Fr = N 2.D/g: Bulk Velocity

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CHAPTER 9. AGITATION AND MIXING

POWER CONSUMPTION OF AGITATORS >@ (Flow number) 1 tan 3 3 a Q a a a nD q N q nD q K D n k D W v S E S It is a function of the volumetric flow rate and the kinetic energy Values of N Q HE-3 high-efficiency impeller 0.47 Disk turbine 1.3 Four-blade 45q turbine (W/D 0.87 a)=1/6 Marine propellers (square pitch) 0.5 N Q Impeller (Power number) 2 2 2 2 3 5 2 2 3 5 2 2 3 5 2 2

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CHAPTER 21 Mechanical Design of Mixing Equipment

implies, mixers that enter the tank or vessel from the side. For such mixers to mix the tank contents, they must be mounted below the liquid level. Conse-quently, they are most often mounted near the bottom to assure blending of the tank contents even at a low liquid level. The major disadvantage to side-entering

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How do I determine HP and speed(r.p.m) of agitator - CR4 ...

Apr 21, 2008  1. it requires the agitator power to be proportional to viscosity. 2. the implied scale-up is on a power/volume basis. 3. no allowance is made for the impellar size. 4. no allowance is made for the impeller type. To remedy this, correlations have been developed which define all attributes of agitation in terms of the impeller Reynolds number.

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Types of Agitators, Agitator's Design and Significance ...

Number of agitators = (Maximum liquid height x specific gravity) / Diameter of tank. Gap between two Agitators = Liquid height / (Number of impellers - 0.5). Basic Design Equations for a Vertical Vessel and Agitator: Vessel Volume = (pi x vessel dia x

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A GUIDE TO OPTIMIZING IN-TANK AGITATION

Offering many benefits over other approaches such as pipes with holes, liquid agitators and pumps, tank mixing eductors feature different operating principles and are available in many styles, sizes and materials. To ensure ... THEN CALCULATE THE NEEDED FLOW RATE Multiply the appropriate turnover rate by the tank volume and then divide by 60

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Agitation Scaleup Calculation

Agitation Scaleup Calculation Does the scaleup from smaller to larger scale based on criteria like equal tip speed, power per unit volume, equal Reynold's number, equal shaft speed. Reactor Geometry Small Scale Reactor. Diameter (T1) mm. Liquid Level (Z1) mm. Shaft Speed (N1) rpm ...

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(PDF) Geometry and Architecture of Mixing Agitator – A ...

To design the agitators, there is a need to calculate the = , = , = ,-----(1) electric power of the motor according to the tank size and liquid type. Where 5. When calculating the electric power of a motor, we are Da Impeller diameter, urged suppose that the tank is cylindrical.

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Agitation and Mixing - WordPress

a. In small tanks the impeller can be mounted off center (shaft is moved away from center then tilted in a plane perpendicular to the direction of move) b. In Large tanks, the agitator may be mounted in the side of the tank with shaft in horizontal plane but at an angle with radius. c. In large tanks with vertical agitators, swirling can be ...

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Information for Agitator / Mixer

Location of agitator in the equipment: Generally agitator is centrally located for better flow pattern. Agitator is located off-center if some part of vessel is occupied by internal coil or some other internal. Shape and size of tank: Vertical cylindrical vessel is the best type for installing an agitator. However, agitator is also installed in ...

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ProQuip Mixers - Industrial Tank Agitators Mixing Solutions

May 13, 2019  The third blog in our series on mixing impellers focuses on mixing impeller power. As discussed in part one of this blog series, characteristics common to all mixing impellers include:. Flow Pattern (part two in series)Impeller Power; Fluid Pumping Rate

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How do I determine HP and speed(r.p.m) of agitator - CR4 ...

Apr 21, 2008  1. it requires the agitator power to be proportional to viscosity. 2. the implied scale-up is on a power/volume basis. 3. no allowance is made for the impellar size. 4. no allowance is made for the impeller type. To remedy this, correlations have been developed which define all attributes of agitation in terms of the impeller Reynolds number.

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Agitator dynamic loads on tanks - API (American Petroleum ...

Aug 03, 2006  Hi, I'm designing a tank, and after doing all the calculations following API 650, the tank doesn't need anchorage. Everything fine for me. When I delivered the calculation report to my client's consulting company, they made a lot of questions about the fact of not having anchor bolts, that I managed to answer based in the API 650 and and national portuguese standards.

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Program for Design and Drawing of Agitator / Mixer

Program for Design and Drawing of Agitator / Mixer I offer Design and Drawing program which Designs and Draws a detailed drawing of Agitator / Mixer, with user friendly dialog boxes, which is an add-on for any CAD program for Designing and Developing GA drawing for Agitator / Mixer.

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Cooling in tank calculation - Heat Transfer ...

Jan 17, 2006  If you have any clue or direction about heat transfer coeficient calculation for tanks with agitator it would be very helpful. Best regards Ivan . RE: Cooling in tank calculation Latexman (Chemical) 31 Aug 05 04:47. bezar, Perry's Chemical Engineers' Handbook has correlations for heat transfer coefficients for agitated vessels. So do many heat ...

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Design Calculation of Theoretical Torque at Slurry Tank ...

Slurry density is major property to generate to high torque on agitator.Here we considering the tank is fill up full of tank having slurry density 2.40 gm/cc ANALYTICAL DESIGN CALCULATION:Existing Slurry Tank agitator Drive specification: Tank Turnover Rate :Tank turnover rate is the guideline figure to optimize the revolution rate of impeller.

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Calculate the Capacity of an Agitator Conditioner

Mar 19, 2017  Conditioner and Super-Agitator, (Patented) (Patented) Conditioner and Super-Agitator is especially designed for intense agitation and aeration. It has a wide application as a conditioner, an agitator, a mixer, or an aerator. It will handle any pulp or slurry, or liquid-solid combination that will flow through a ten mesh screen.

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Mixing and Blending liquids, solids and gases into water ...

of different agitator/impeller designs in mixing tanks. • Mixing of single and multi-phase fluids in stirred tank reactors is a common operation in many industries. • Understanding the fluid flow in these tanks is critical for equipment design, scale-up, process control and economic factors.

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Types of Agitators, Agitator's Design and Significance ...

Number of agitators = (Maximum liquid height x specific gravity) / Diameter of tank. Gap between two Agitators = Liquid height / (Number of impellers - 0.5). Basic Design Equations for a Vertical Vessel and Agitator: Vessel Volume = (pi x vessel dia x

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Calculate the Capacity of an Agitator Conditioner

Mar 19, 2017  Conditioner and Super-Agitator, (Patented) (Patented) Conditioner and Super-Agitator is especially designed for intense agitation and aeration. It has a wide application as a conditioner, an agitator, a mixer, or an aerator. It will handle any pulp or slurry, or liquid-solid combination that will flow through a ten mesh screen.

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Mixers and Agitators - ScienceDirect

Jan 01, 1998  Tank Shape Figure 16-3 depicts the nomenclature used in explaining mixer layout and design. Most tanks are cylindrical and typically have a liquid height over tank diameter (Z/T) ratio of about 1.0. On occasion, tanks have very low Z/T ratios of 0.2 to 0.4, which is typical of the large storage tanks in the petroleum industry.

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Agitation and Mixing - WordPress

a. In small tanks the impeller can be mounted off center (shaft is moved away from center then tilted in a plane perpendicular to the direction of move) b. In Large tanks, the agitator may be mounted in the side of the tank with shaft in horizontal plane but at an angle with radius. c. In large tanks with vertical agitators, swirling can be ...

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Pumped Eductor Agitation

tanks. Mechanical agitation, or cathode rod movement, consists of lateral movements of a cathode bar throughout the length of a tank. And lastly, pumped agitation with eductor nozzles, which is the focus of this paper. Air Agitation Air agitation has been in use for many years, this method has more disadvantages than advantages. For starters ...

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Mixing and Blending liquids, solids and gases into water ...

of different agitator/impeller designs in mixing tanks. • Mixing of single and multi-phase fluids in stirred tank reactors is a common operation in many industries. • Understanding the fluid flow in these tanks is critical for equipment design, scale-up, process control and economic factors.

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How do I determine HP and speed(r.p.m) of agitator - CR4 ...

Apr 21, 2008  1. it requires the agitator power to be proportional to viscosity. 2. the implied scale-up is on a power/volume basis. 3. no allowance is made for the impellar size. 4. no allowance is made for the impeller type. To remedy this, correlations have been developed which define all attributes of agitation in terms of the impeller Reynolds number.

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Take Mixing to the Max - Chemical Processing

Jul 15, 2003  A practical example of a limitation on tank geometry selection is low liquid level. A 48-in.-diameter tank with a 36-in. straight side and dished heads provides an example. Although extremely low liquid levels often are sought in batch processes, you must choose limits to keep the mixing intensity calculations valid.

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Cooling in tank calculation - Heat Transfer ...

Jan 17, 2006  If you have any clue or direction about heat transfer coeficient calculation for tanks with agitator it would be very helpful. Best regards Ivan . RE: Cooling in tank calculation Latexman (Chemical) 31 Aug 05 04:47. bezar, Perry's Chemical Engineers' Handbook has correlations for heat transfer coefficients for agitated vessels. So do many heat ...

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Program for Design and Drawing of Agitator / Mixer

Program for Design and Drawing of Agitator / Mixer I offer Design and Drawing program which Designs and Draws a detailed drawing of Agitator / Mixer, with user friendly dialog boxes, which is an add-on for any CAD program for Designing and Developing GA drawing for Agitator / Mixer.

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SCALE-UP OF MIXING SYSTEMS

A turbine agitator with six flat blades and a disk has a diameter of 0.203 m. It is used in a tank with a diameter of 0.61 m and height of 0.61 m. The width is W = 0.0405 m. Four baffles are used with a width of 0.051 m. The turbine operates at 275 rpm in a liquid having a

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Mixer Torque Agitator Bending Moment Calculator - WMProcess

Calculating Torque and Bending Moment are important in desigining vertical mount mixers. Enter the motor nameplate horsepower (HP), shaft speed (RPM), shaft length (in), and mixer head diameter (in) in the cells below. The torque an bending moment are actual values, a safey factor of at least 1.5 should be used in the design of []

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HOW SIZING AND INSTALL MUD AGITATOR Drilling Fluid ...

Nov 01, 2016  Four baffles are installed around each agitator at 90-spacing along lines connecting the agitator shaft center with the four corners of a pit (Figure 10.11). For a long rectangular pit with two or more agitators, the tank is divided into imaginary square compartments and a baffle is pointed at each corner (either actual or imaginary).

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Agitators - Chemineer, Inc

Agitators can be mounted on beams/channels, clamp mounted to the tank side, or flange mounted to the vessel with a variety of sealing options. SB Side Entry Agitators The SB agitator is a belt-driven unit with features engineered for side entry agitator service.

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