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Impact crushing work index of granite

parameter called Work Index (WI). The Work Ind ex of a material is impor tant for the selection of a crusher: type, size, eccentric throw, setting and motor size. In practice, the energy measurement according to Bond's method is carried out with an impact-testing machine. The impact strength of a rock is an important m easure of its toughness

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  • Understanding Comminution: Compression versus impact crushing
    Understanding Comminution: Compression versus impact crushing

    As a basic rule, impact crushing is suitable for rocks with a low work index ( 12) as well as low silica ( 20%) and moisture levels ( 5%). Rocks with these characteristics are soft and non-abrasive, and easily broken within the crushing chamber, keeping wear rates at a minimum, and producing high reduction ratios with a better-shaped end product

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  • Understanding comminution: Compression versus impact crushing
    Understanding comminution: Compression versus impact crushing

    Aug 18, 2020 Aug 18, 2020 As a kind of basic first rule you could say: Impact crushing is suitable for rocks with a low work index ( 12) as well as low silica ( 20%) and moisture levels ( 5%). Rocks with these characteristics are soft and non-abrasive material, which can be broken easily within the crushing chamber while keeping wear rates at a minimum and produce high

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  • Impact Crushing vs. Cone; The Effect on Aggregate LA
    Impact Crushing vs. Cone; The Effect on Aggregate LA

    Jan 15, 2016 Jan 15, 2016 The main influence on the Si index is from the material itself, however the impact crushing action causes the material to fragment along natural lines, rather than being sheared off in a cone crusher

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  • Bond Work Index - an overview | ScienceDirect Topics
    Bond Work Index - an overview | ScienceDirect Topics

    The Bond work index is not solely a material constant but is influenced by the grinding conditions. For example, the finer the grind size desired, the higher is the kWh/t required to grind to that size. Magdalinovic [38] measured the Bond work index of three ore types using different test screen sizes. He produced a correlation between the mass of test screen undersize per revolution, G, and

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  • Bond Work Index Tests - Grinding Solutions Ltd
    Bond Work Index Tests - Grinding Solutions Ltd

    The Bond Low-Energy Impact test can be used to determine the Crusher Work index (CWi), also known as the Impact Work Index. The test determines the impact energy at which a specimen fails and allows approximation of net power requirements for sizing crushers. The open and closed sized settings for given product sizes can also be determined

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  • Assessment of Rock Aggregate for Construction Using
    Assessment of Rock Aggregate for Construction Using

    Bond Work Index (BWi), Aggregate Impact Value (AIV) and Aggregate Crushing Value (ACV) of samples was characterized and correlated. The work index of the charnockitic rock, granite gneiss, porphyritic granite –labelled PG1 and porphyritic granite –labelled PG2 of samples was found to be 17.12 kWh/t, 13.72 kWh/t, 13.64 kWh/t and 12.76 kWh/t

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  • CORRELATION BETWEEN BOND WORK INDEX AND
    CORRELATION BETWEEN BOND WORK INDEX AND

    index and Bond work index. The Bond work index is regarded as one of the crushing resistance; it can therefore be presumed that the Bond work index is correlated to the mechanical properties of materials [4]. Literature review on impact crusher performance in relation to machine

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  • Predicting the crushability of rocks from the impact
    Predicting the crushability of rocks from the impact

    Aug 01, 2010 If a strong correlation between impact strength and the crushability of rock can be found, engineers working in crushing plant can easily predict rock crushability from the impact strength test. The main objective of this research is to investigate the possibility of estimating the crushability of rocks from the impact strength test

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  • Unit Experimental Study on Impact Crushing Rock of the
    Unit Experimental Study on Impact Crushing Rock of the

    The unit crushing experiment which contains two breaking forms (static-pressure breaking and impact) is conducted on core columns of sandstone, limestone, and granite. This experimental study showed the following: The breaking work ratio of the three core column types is much less than that of the flat rock

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  • Impact Crusher Parts,Impact Crushing Work Index
    Impact Crusher Parts,Impact Crushing Work Index

    Impact Crushing Work Index. The impact crushing work index mainly includes rotor speed and productivity. (1) Impact Crusher Rotor Speed. The calculation formula of impact crusher rotor speed is n=60v/πD, in which v refers to the linear speed of the rotor (m/s) and D

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  • (PDF) Assessment of mechanical properties of granite
    (PDF) Assessment of mechanical properties of granite

    Granite is the dominant granitic rock in most quarries, but significant microgranite and minor pegmatites occur in some quarries. ... (aggregate impact value AIV, aggregate crushing value ACV, ten

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  • Unit Experimental Study on Impact Crushing Rock of
    Unit Experimental Study on Impact Crushing Rock of

    Unit Experimental Study on Impact Crushing Rock of the Microcoring PDC Bit Yingxin Yang , Dongdong Song , Kuilin Huang, Haitao Ren, and Jian Zhou ... e breaking work ratio is an important index to measure the breaking efficiency of the teeth, and the ... the breaking work ratio of granite and

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  • Understanding Comminution: Compression versus impact
    Understanding Comminution: Compression versus impact

    As a basic rule, impact crushing is suitable for rocks with a low work index ( 12) as well as low silica ( 20%) and moisture levels ( 5%). Rocks with these characteristics are soft and non-abrasive, and easily broken within the crushing chamber, keeping wear rates at a minimum, and producing high reduction ratios with a better-shaped end product

    Get Price
  • Understanding comminution: Compression versus
    Understanding comminution: Compression versus

    Aug 18, 2020 Aug 18, 2020 As a kind of basic first rule you could say: Impact crushing is suitable for rocks with a low work index ( 12) as well as low silica ( 20%) and moisture levels ( 5%). Rocks with these characteristics are soft and non-abrasive material, which can be broken easily within the crushing chamber while keeping wear rates at a minimum and produce high reduction ratios with a better

    Get Price
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