how to calculate efficiency of the crusher

Aggregate Production Optimization in a Stone-Crushing Plant

The cone crusher's mantle moves in an eccentric pattern when the crusher is operating. ... matched the experimental results comparatively well in assessing the matching rough area that is possible to calculate from the DEM product ... Mali AV, Morey NN, Khtri AP (2015) Improvement in the efficiency of the stone crusher. Int J Sci Eng Technol ...

How to Optimize Reduction Ratio in Jaw Crusher?

The reduction ratio of a jaw crusher is a critical parameter that determines the efficiency of the crushing process. It is defined as the ratio of the size of the feed material to the size of the product. In other words, it is the degree of reduction or size reduction achieved in the crushing process. The reduction ratio is an essential factor ...

Evaluation of blast fragmentation effects on jaw crusher …

The fragmentation rate and particle size distribution of the muckpile after blasting have important influences on the performance of subsequent mining activities such as loading, hauling, crushing, grinding, and the overall costs of the mine. Drilling and blasting are important steps in the chain of mining processes, and its results affect the …

Answer in Chemical Engineering for grace #238718

Sieve particle size analysis of feed, crusher product and mill product respectively indicated specific areas of 2.9, 103 and 865 m2 / kg. Calculate the horsepower required to operate the crusher-crusher assembly, if the crusher's energy efficiency is 20% and the crusher's energy efficiency is 25%. The Rittinger's number for material is 77.4 m2 ...

Understanding the Reduction Ratio in Crushers

Crushing efficiency is the ratio of a crusher's operation to the fed material size to give the required size. Hence, increasing the crushing efficiency with the jaw crusher reduction ratio depends on the amount of material …

Assessing the energy efficiency of a jaw crusher | Request PDF

Abstract. It is well known and taken for granted that the efficiency of energy use by comminution (i.e. breaking, crushing, grinding) equipment is very low, typically less than 10%. Most of the ...

Modeling and Improving the Efficiency of Crushing …

The dependences of the current and power of the crusher electric drive on the feeder capacity are determined; the graphs have a symmetrical position relative to the approximating curve (R 2 ≈ 0.9). …

Tips to maximize crushing efficiency

Vibrating Screen Efficiency Calculations

An efficiency of 99% will equate to a significant loss of capacity. Efficiency is the ratio of undersize material in the feed that actually passes from the media to the undersize material that should pass from the media. This …

Common & Basic Formulas for Mineral Processing Calculations

Classifier efficiency: 100 x B (A-C)/A (B-C) Compound Classification. To estimate the circulating loads in and the efficiency of each of the two classifiers operating in closed circuit with a ball mill: Original feed may be applied at the ball mill or the primary classifier. T—Tons of original feed. X—Primary circulation factor.

(PDF) Design of Impact stone crusher machine

The fabricated stone crusher was tested and the actual capacity was found to be 301 kg/h with a through-put efficiency of 75.4 %. The crushed products were well graded with 1.89 coefficient of ...

Calculating the efficiency of impact crushers for bulk …

Today the efficiency of crushing bulk materials is usually evaluated by using statisti- cal methods based on the random nature of the interaction of the particles being crushed …

Loading and Hauling

Factor 3 Material Weights and Swell Factors zThe weight of material is in pounds per cubic yard [lb/cy] zUndisturbed or " in place" material is called a bank cubic yard [BCY] zLoose, broken or blasted material is called a loose cubic yard [LCY] zThee e at o s p bet ee ba a d oose cub c ya ds s relationship between bank and loose cubic yards is sse actowell …

How to Maximize Crusher Efficiency

The materials are squeezed in between a moving piece of steel and stationary steel. To maximize the efficiency of this type of crusher, avoid the trickle feeding method because this can lead to poor productivity and cause a negative impact on the bearing alignment. Instead, aim between 75% to 95% power range.

Useful Balance Sheet Ratios — And How to Calculate Them

Providing a complete interpretation of a company's results quantitatively, balance sheet ratios are used to compare two items on the balance sheet or analyze balance sheet items. Financial ratios, such as efficiency ratios, liquidity ratios, solvency ratios, quick ratios, and profitability ratios, can be utilized by the managers, stakeholders, and business owners …

Crushing of coal and calculation of size reduction efficiency.

This presentation is about crushing of coal and how to calculate the crushing efficiency of coal from processing point of view. ... Crushing efficiency • Generally the efficiency of crusher has been calculated from the Power point of view. • As per a data in US, 1 % of the energy generated is used up for Size reduction Processes • The ...

Study of the Energy-Power Parameters of the Crushing Process …

Abstract. Analytical method for determining the energy-power parameters of the crushing process in a rotary hammer crusher with a grate is proposed. Using the method of equivalent power required for the electric motor drive of the crushing machine at the steady mode of operation and basic laws of general mechanics, we explain the …

Crushing, Screening & Conveying

As Alex told you: The crushing work index you calculated appears mostly correct. The only correction factor that might affect the calculation is to correct for the efficiency of the motor -- the work index is based on motor output (pinion) power, whereas the measurement of motor power is usually based on motor input power.

Principles of Screening and Sizing

Basic formula for calculating screen area (per deck) • U: Required screening area (Sq.ft.) • A: Nominal capacity for separation • B: % Oversize (.33 – 1.21) • C: % Halfsize (.40 – 2.40) • D: Deck location (.80 – 1.0) Screening Area = U / (A x B x C x D x E x F x G x H x J) • E: Wet screening (1.0 – 1.25) •

FUEL CONSUMPTION OF CONSTRUCTION EQUIPMENT

According to the calculation = K * KW / KPL. = 0.226 *129.6 / 0.85. = 34.45 LPH (at full rated output of engine and full load) If machine performs in 40 to 60% load as standard. = 34.45 * 40% ...

Double deck screen Efficiency

What is the method of calculating the efficiency of double deck screen? (unknown) 8 years ago (unknown) 8 years ago. Like. Basically the same as a single deck, except the feed to the second deck is the under-size from the top deck. You would normally look at the efficiency of each deck separately, unless you are using the top deck to take a ...

Drive power calculation of a crushing machine working in shear

overcome all resistance forces during the operation of the crusher: N N 1 N 2 DR + =, (1) where N1 – the power required for crushing the material; N2 – power expended on friction in the bearings; η – transmission efficiency. The calculation of power is carried out for a single act of crushing, that is, with the

Circulating Load Calculation Formula

The pulp densities around your cyclone are sampled and known over an 8-hour shift, allowing to calculate corresponding to circulating load ratios and circulating load tonnage on tons/day or tons/hour. This is %Solids/Densities Based Circulating Load Calculation Method obtained from the pulp/slurry around your hydrocyclone. If a product …

Roll Crusher Capacity Calculator

To calculate the capacity of a roll crusher, you can use the following formula: Capacity = (2.5 * R * L * S) / (V * T * H) Where: R is the roll diameter. L is the length of the roll. S is …

Equipment Sizing: Crusher or Grinding Mill

By referring to equipment manufacturer's bulletin on crushers, Fig. 1, a crusher producing 80% passing 3/4″ requires a close side setting of approximately 5/8″. Since the selected crusher capacity must be in …

Drive power calculation of a crushing machine working in shear

Scheme of a rotary-cone crusher: a – sectional view of the crusher; b – section A-A. The power spent on material crushing is consumed to overcome the moment of force M : М = Р . l, (2)

(PDF) DESIGN AND EVALUATE OF A SMALL HAMMER MILL

The results showed that the maximum crushing efficiency was 94.7%. Also, the results showed a relation between nominal aperture and the cumulative weight obeyed a logarithmic function of the form ...

How do you calculate the size reduction ratio of a …

It is typically used in the mining and aggregate industries to quantify the efficiency of a crusher in reducing the size of the material. The size reduction ratio is …

Energy consumption values of each crusher per tonne

For the sedimentary rocks (Siltstone) the specific crushing energy is approximately 1.26 kJ/kg. Tosun and Konak (2014) measured power consumption of jaw crusher during crushing of limestone rocks ...

How to Calculate the Efficiency of a Jaw Crusher

Calculating the efficiency of a jaw crusher requires several steps, from gathering necessary data to the actual computation of efficiency. Step 1: Gather the Required Data. To calculate the efficiency, we need to know the quantities of the input and output of the crusher. This would mean understanding how much rock or other material is being ...