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Slurry flows in metallurgical process engineering

A spreadsheet calculation tool was developed The tool can be used for sizing of pipes and pumps handling settling slurries The tool calculates critical deposition velocities that need to be achieved in pipe transport to prevent particle settling and pipe blockages The tool also calculates extra pressure losses caused by the solid particles Get price

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Design of PE Piping Systems

Chapter 6 Design of PE Piping Systems 160 Pressure Rating for Fuel Gas Pipe Compared to other common thermoplastic pipes PE pipe can be used over a broader temperature range For pressure applications it has been successfully used from -40F (-40C) to 140F (60C) Get price

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KREBS millMAX™ Slurry Pumps

The wear ring closes the suction side gap while the pump is running restoring performance without speeding up the pump This feature makes KREBS pumps the only pump line that can effectively eliminate both the inefficient recirculation and the grinding of slurry millMAX high-pressure pumpGet price

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Proper Filtration Removes Oversized Particles from CMP

The CMP slurry filtration test stand consisted of a pump to deliver fluid from a reservoir to a series of 316 stainless steel filter housings Pressure gauges were installed before and after each of the filter housings to monitor differential pressure during filtration Sanitary connections and 316 stainless steel pipe were used for ease of cleaning Get price

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Smith Fibercast Fiberglass Pipe Fittings Composite Pipe

Stronger than the fiberglass piping itself in both internal-pressure and axial-tension capability Resists movement facilitating joining long runs of fiberglass pipe without waiting for the adhesive to cure Fiberglass bell and spigot joining can be used with 1 inch to Get price

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Recirculation line Fill Pipe

pressure during real refueling which is difficult to simulate in a bench leak test like staff is proposing here So staff is Figure 1 Depiction of Fill Pipe and Recirculation Line 1 Vapor to liquid ratio During refueling with a vapor recovery nozzle this is the volume of vapor returned divided by the volume of liquid gasoline dispensed Get price

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Pump Recirculation and Suction Pressure

Apr 07 2010If the recirculation line is large so pressure drop inside is insignificant the pressure drop would be 0 from the pump to the relief valve so then you should take the flowrate below the head equivalent of that relief valve pressure as shown on the pump curve for your relief valve sizing flow Get price

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Slurry Pipe Friction Loss Explained

Reasons for Slurry Pressure Drop As fluid or slurry flows through a pipeline a pressure drop can occur due to the resistance to flow There could also be a pressure loss or gain due to elevation change from the beginning and end of the pipeline This pressure resistance is a result of a number of issues Friction between the slurry or fluid and the wall of the pipeGet price

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Hot Water Distribution Through Recirculation

The pipe-in-pipe approach works well in a situation where fixtures are grouped close together and are relatively close to the riser Balancing a recirculation system The goal of a hot water recirculation system is for the temperature on each return to be the same This is achieved through balancing ensuring flow for each riser and branch Get price

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US6458020B1

A recirculation mechanism is used to force slurry toward the center of a platen used for chemical-mechanical polishing The recirulator captures the slurry that would otherwise be flung from a rotating platen because of centrifugal force The captured slurry is forced upwardly away from the surface of the platen and toward the center of the platen to recycle the slurry Get price

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What is Pump Cavitation?

Jul 10 2014What is pump cavitation? Simply defined cavitation is the formation of bubbles or cavities in liquid developed in areas of relatively low pressure around an impeller The imploding or collapsing of these bubbles trigger intense shockwaves inside the pump causing significant damage to the impeller and/or the pump housing Get price

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How to Avoid Damage from Internal Suction Recirculation

Home How to Avoid Damage from Internal Suction Recirculation Several of my earlier Pump Tips Columns have touched on the subject of low flow suction recirculation and the fact that it can be extremely damaging in High Suction Energy pumps Get price

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Slurry Re

Product Description The Precision Slurry Recirculation and Filtration System has a stainless steel tank and a nickel-plated industrial-duty pump The cone-shaped bottom in the tank promotes more even Baum readings throughout the workday Dual wall construction ensures even cooling The Precision SLURRY Tank comes with a 130 micron reusableGet price

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Key Factors to Lime Slurry Usage in Water Treatment Processes

Aug 01 2017This problem can be minimized by recirculating the lime slurry through a "re-circulation loop" using flexible hoses for slurry transport inlet lines minimizing the number of sharp bends using piping at least one and half to two inches in diameter and periodically flushing the lines with water Get price

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Sizing a Minimum Flow Recirculation Line

Draw and design the minimum flow recirculation line from the pump discharge to the pump supply tank as shown in the figure above Install an orifice in the minimum flow recirculation line NOTE Consult the manufacturer for the minimum flow rate Click the Open/Close button and close the Get price

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EXPERIMENTAL INVESTIGATION ON PRESSURE DROP

slurry at an efflux concentration of 20 4% (by weight) the pressure drop reduces considerably with addition of the fine particles and the reduction in pressure drop is more at lower velocities Further at efflux concentration of 33 9% (by weight) the pressure drop reduces atGet price

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Function Of Centrifugal Pump Recirculation Loop

Mar 20 2008For special cases like slurry duty a recirculation loop is necessary to prevent solid from settlement no matter if there is a minimum flow requirement from pump manufacturer The same for pumps with mixing functions as per Johnsonn239 Get price

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Transient Simulation of Long

incline and is transporting slurry with specific gravity (SG) of 1 4 In Figure the pressure 5 response (at the end of the pipeline) to valve closure is shown When the downstream valve is closed there is an increase in the pressure at the valve This pressure increase causes a pressure wave that travels back and forth between theGet price

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Pump and Pipe Pressure Calculator

Pump and Pipe Pressure Calculator This calculator determines the flow and pressure relationship of a piping or plumbing system and an associated pump It has been designed to mainly support those who are designing hot water heating systems who are trying to determine the right size pipe or tube and the right circulator pump Get price

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centrifugal slurry pump vertical slurry pump slurry pump

Shijiazhuang Tech-macro Pump Industry Co Ltd specializes in manufacturing and exporting supply centrifugal slurry pump vertical slurry pump slurry pump spare part Gypsum slurry recirculation pump bottom ash slurry pump sand and gravel pump pump on dredger Warman slurry pump spare part heavy duty slurry pump Warman slurry pump and other products Get price

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Recirculation

The CEP recirculation line is taken from the pump discharge after the discharge valve and returned through the recirculation valve to the condenser hotwell (from where the CEP takes its suction) as shown in condensate PID (Figure III/7 2-1 and III/7 2-2) As stated earlier for smaller units an auto control loop may not be necessary for CEP recirculation control Get price

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COMPUTATIONAL FLUID DYNAMICS SIMULATION OF THE

The pipe length L was much greater than the maximum entrance length Le required for fully developed flow The geometry was meshed into approximately 1 5105 tetrahedral cells For Eulerian slurry calculations we use the Phase Coupled SIMPLE (PC-SIMPLE) algorithm for the pressure-velocity coupling Simulations of the carrier fluidGet price

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Pressure Drop Online

Pressure Drop Online-Calculator Calculation of pressure drops of flowing liquids and gases in pipes and pipe elements (laminar and turbulent flow) Note Calculations are possible only if Javascript is activated in your browser Pressure Drop Online-Calculator for small mobiles This version is usable for browsers without Javascript also Get price

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Pressure drop evaluation along pipelines

The pressure temperature and elevation at Point A The pressure temperature and elevation at Point B The distance between Point A and Point B (or length the fluid must travel) and equivalent length (pressure losses) introduced by valves and fittings These Get price

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Sizing a Minimum Flow Recirculation Line

The figure below shows a minimum flow recirculation line modeled in PIPE-FLO To size the minimum flow recirculation line Draw and design the minimum flow recirculation line from the pump discharge to the pump supply tank as shown in the figure above Install an orifice in the minimum flow recirculation Get price

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ThickenedandPasteTailingsPipelineSystems Design Procedure

The hydraulic head is the height to which slurry would rise in an open stand pipe as a result of the pressure in the pipeline The hydraulic grade line is a line drawn through the "hydraulic heads" along a pipeline For a constant diameter pipeline the energy line (or total energy line) is parallel to the hydraulicGet price

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Pipe Sizing

With these preliminary calculations of pipeline sizing and pipe routing pressure drop between start and end point incorporating all fittings is calculated Decision of the selection of higher or lower pipeline size is made according to the available pressure drop versus calculated pressure drop Get price

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Key Factors to Lime Slurry Usage in Water Treatment Processes

Aug 01 2017Lime slakers should be air-sealed and operated under negative pressure and the utilization of fans to expel vapors and retain negative pressure in the slaker should be considered Uneven mixing of water can produce explosive boiling conditions and splattering of lime slurry Get price

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Understanding pumps recirculation

Pump discharge recirculation Discharge recirculation is the reversal of flow at the discharge tips of the impeller vanes Resulting vortices cavitate and usually attack the pressure side of the vanes In general the capacity at which suction recirculation occurs is directly related to Get price

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Flow visualizations and pressure drop measurements of

Ice slurry is composed of an initial solution of 9 5% weight propylene glycol The influences of the inlet mean axial velocity and ice volume fraction on the flow patterns and pressure drops are investigated experimentally for volume ice concentrations up to 18 4% in both the laminar and turbulent flow regimes Get price

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equalized to the system water pressure and therefore a pump is needed to move the water (creating a difference in pressure) from the loads and back to the heat source to keep it on its idle temperature — ready to spring into use This recirculation concept has many Please see 'System' on page 33 October 2016 - Plumbing HVACGet price

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