slurry pump head ratio

The performance of centrifugal pumps when pumping ultra ...

pump head and efficiency ratios need to be determined for viscous slurries. Definitions The standard definitions for head (HR) and efficiency (ER) ratios are as follows: HR The pump head ratio (HR) is the ratio of slurry head produced to the head produced for water at the pump best-efficiency point (BEP) measured for water

Choosing a Slurry Pump - Features - The Chemical Engineer

Figure 1, an extract from Perry's Chemical Engineers' Handbook, depicts the relationship between the pressure drop and the slurry's velocity compared to a pure liquid in horizontal pipework.The important point to note is that the horizontal pipe velocity should be above the point labelled V m2 (minimum transport velocity). This is the point at which the solids are fully suspended.

Slurry flows in metallurgical process engineering ...

Aalto University, P.O. BOX 11000, 00076 AALTO Abstract of master's thesis II Author Ville Roitto Title of thesis Slurry flows in metallurgical process engineering – Development of tools and guidelines Department Biotechnology and Chemical Technology Professorship Plant design Code of professorship KE-107

Numerical simulation of a centrifugal slurry pump handling ...

The predicted centrifugal slurry pump characteristics, in terms of head ratio and efficiency ratio, for equi-size particles (S s = 2.65) of 100 µm to 800 µm at BEP flow rate, and 20% and 30% weight concentrations are presented in Fig. 6. It is seen that the increase in particle size increases the drop in head and efficiency ratios.

Slurry Pumps Basics ǀ What is a Slurry Pump ǀ Slurry Pumps ...

The efficiency of a Slurry Pump is the ratio of energy delivered by the pump and energy supplied to the pump shaft. Pump efficiency varies based on total head (vertical axis) and the flow (horizontal axis).

Slurry Pump

The impeller head is equipped with feet permitting a more even inflow of slurry. The Gearbox has a 1:1 ratio providing a smoother power transfer and life. Click …

Guidelines for slurry pumping - Pumps! That's what it's about

Slurry pumps are a heavy and robust version of cen-trifugal pumps, capable of handling tough and abrasive duties. Slurry pumps should also be considered a generic term, to distinguish them from other centrifugal pumps mainly intended for clear liquids. Applications Slurry pumps are used to move mixtures of liquid

Slurry pump selection manual calculation formula.

AH slurry pump, gravel pump, sp slurry pump, pump, slurry pump parts and accessories. ... Km=Hm/(Vm^2) The slurry calculates the ratio of the head of the pipeline to the square of the velocity. About us. NO.245, Tianshan Street, High Technology …

What is the Max Slurry Concentration of ... - Walker Pump

The ratio of the weight flow rate of solids in the slurry to the weight flow rate of the slurry is called the weight concentration, which is expressed by CW. CW = S · QS / Sm · Qm × . In the formula, Sm refers to the slurry density, which can be calculated by the following formula: Sm = SW + CV / 100 × (S-SW) t / m3.

Heavy Duty Slurry Pumps - Hüdig

Heavy-Duty-Slurry-Pumps-Product-Categories. These compact-designed pumps are engineered for medium-heavy applications up to a water-depth of 30 m. By the principle of the cutter-system sedimentary material will be raised and a high ration of sediment load can be reached and charged. Extreme wear-resistance chrome-alloyed material (24 – 28 % ...

A Beginner's Guide To Pumping Slurry

Many types of pumps are used for pumping slurries, but the most common slurry pump is the centrifugal pump (pictured above). The centrifugal slurry pump uses the centrifugal force generated by a rotating impeller to impact kinetic energy to the slurry, similar to how a water-like liquid would move through a standard centrifugal pump.

Calculating Physical Properties Of Slurries - Cheresources ...

A slurry consists of raw salt in a brine solution. Experiments indicate that this slurry weighs 1522 kg/m 3). Calculate the concentration of solids by weight and by volume and the volume ratio. Use 2082 kg/m 3 for the density of salt and 1281 kg/m 3 for the density of brine. Calculations: Input: Slurry Density, ρ m = 1522 kg/m 3 Liquid Density ...

Prediction of relative efﬁciency reduction of centrifugal ...

slurry h water C W, n (2) where HR is the head ratio (relative head reduction) and ER is the efﬁciency ratio (relative efﬁciency reduction). On the other hand, H and h denote pump head in metres and pump efﬁciency, respectively. It should be noted that both ratios are based on the constant concentration of solids (C W), and pump ...

AN INTRODUCTION TO SLURRY PUMPING

The head developed by a centrifugal pump pumping slurry differs from the performance with clean fluids depending on the amount of solid particles in the slurry as the solids do not behave in the same manner as liquid. The difference is estimated by the Head Ratio and Efficiency Ratio.

Performance of different centrifugal slurry pump impeller ...

2 Effects of solids on pump head and efficiency The pump head and efficiency when pumping water are generally lowered by the presence of solids. When pumping slurries, the relative reduction of the clear water head and efficiency for a constant flow rate and rotary speed may be defined by the ratios and factors shown in Figure 1. Head ratio: HR ...

Liquid or Slurry? Which pump should you use?

Flowable Liquids vs Slurry Mediums. Anything that needs to be pumped has a viscosity. For instance, water is 1 cPs while a much thicker liquid like a fruit pulp can be about 5,000 cPs. If it's a slurry from a mine, this also is viscous to some degree. Slurry will also have a solids percentage which has to be taken into account.

Number 28 - First Published: February 2000, Revised: …

centrifugal slurry pumps is a major engineering challenge for both the end ... the ratio of the aerated volume to the de-aerated volume. See Figure 13. Equation 1 - FVF = Aerated Volume De-aerated V olume ... to pump higher flow rates at a higher head. The vertical pumps …

GREEN PAPER SLURRY PUMPING 101 - KETO Pumps

Slurry Pump Calculations - Slurry Pumping and Dredge ...

Slurry Pump Calculations The following parameters must be determined when calculating a slurry pump. Particle size and distribution. Particle size d50 (d85) is a measure of the percentage of particles in the slurry with a certain size or smaller.

(PDF) Prediction of Centrifugal Slurry Pump Head Reduction ...

Prediction of Centrifugal Slurry Pump Head Reduction: An Artificial Neural Networks Approach ... It also produces 12.441 % mean deviation in the prediction of efficiency ratio for 216 data points ...

Slurry Pumping Glossary, Slurry Pump Performance, Mining ...

Slurry Pumping Glossary. Here is a mini-dictionary of terms and definitions used in Slurry Pumping and in Minerals Process Industries. Affinity Laws (also Affinity Rules) – Mathematical relationships of pump speed to flow rate, developed head and input power. When speed changes from N1 to N2, flow rate changes from Q1 to Q2=Q1(N2/N1), head ...

Performance prediction for slurry pumps - Pump Industry ...

The head ratio is defined as the head when pumping a solid-liquid mixture divided by the head when pumping clear water at the same flow rate. Early researchers expressed the head and efficiency ratios in terms of a pump Reynolds number which excluded the yield stress of the slurry …

A Comparative Study on the Performance Characteristics of ...

The pump total head, overall efficiency, and pump input power as a function of the flow rate have been measured. The results obtained from the centrifugal slurry pump performance show that at rated speed, the head and efficiency of the pump decrease with an increase in solid concentration and the effect is strongly dependent on slurry properties.

SLURRY PUMPING

the pump. Units are in metres. Equipment Head: In most plants the most common equipment on the pump line is a cyclone. The process design will dictate the required pressure drop across the device, to achieve it's process duty. This pressure is usually quoted in kPa, and must be converted to metres of slurry head, using the following formula:

Pump Specifying per Applications - Slurry Pumping and ...

Pump System Head. The height of the fluid level can have a large impact on the system head. The dynamic head is the pressure required by the system to overcome head losses caused by flow rate resistance in pipes, valves, fittings, and mechanical equipment. Dynamic head losses are approximately proportional to the square of the fluid flow velocity, or flow rate.

Slurry Pumps | McLanahan

McLanahan's M3H range of Pumps were developed from more than 50 years of Pump experience featuring head and efficiency improvements from previous models. This range of horizontal spindle, abrasion/corrosion resistant centrifugal Slurry Pumps is designed for construction sands, frac sand, glass sand, silica sand, mineral sands, water treatment ...

Slurry Pump Design: What You Need to Know | BBA Blog article

HR = head slurry/head water; ER = efficiency slurry/efficiency water; The above deratings depend on the following factors: Specific gravity of solids; Volumetric concentration; Ratio of particle size d 50 to impeller diameter (d 50 /D) Using speed reducers. Most slurry pumps operate at …

Slurry Pump Capacity & Flow Rates Explained: Sizing Slurry ...

A slurry mixture – or mud containing water, bentonite and other additives – is pumped down the drill string.The mud pushes out of the drilling head itself, helping to lubricate the side walls of the bore. This makes it easier for the pipe to slide through the soil. Slurry also maintains a pressure inside the bore to withstand the effects of groundwater pushing in.

Slurry Calculator Help - Paterson & Cooke

Slurry Calculator Help Introduction The Paterson & Cooke Slurry Toolkit is a simple calculator of slurry properties. Use it to determine the concentration of the slurry if you know the density or vice versa. It is also a useful tool to determine slurry flow properties. The toolkit is meant for use by engineers, technicians and […]

Performance Characteristics of Centrifugal Pump Conveying ...

The present experimental study deals with the effect of varying different soft slurry concentrations ranging from 0 to 18 % by weight on the performance characteristic of a centrifugal pump. Experimental results are presented for pump performance (head, overall efficiency and electrical power input) as a function of the flow rate. In addition the pump performance is predicted by general ...

Reading Slurry Pump Performance Curves Like a Pro

Reading Slurry Pump Performance Curves Like a Pro. Posted by GIW Industries on Dec 19, 2017 6:00:00 AM. One of the best ways to determine a pump's capabilities is by looking at a pump performance curve. When read properly, this graph can tell you the exact flow rate and pressure at which your pump should be running for maximum efficiency.

Hydraulic performance and erosive wear of centrifugal ...

Head and efficiency ratio characteristics of a centrifugal slurry pump Proc., 26th National Conf. of Fluid Mechanics and Fluid Power, Indian Institute of Technology, Kharagpur, India ( …

Use of SONAR Flow Measurement for Performance and ...

For example, in the case of variable-speed centrifugal slurry pumps, standard measurements commonly available in most plants, (e.g. pressure, flow rate, density, pump speed) can be used to obtain a non-dimensional pump curve (Non-Dimensional Head vs. Non-Dimensional Flow).