16-06-2015· The test determines the Bond Impact Work Index which is used with Bond’s Third Theory of Comminution to calculate net power requirements when sizing crushers*. It is also used to determine the required open-side settings ( jaw crushers and gyratory crushers) or closed-side settings (cone crushers)
19-06-2015· Avg Bond Work Index: kWh/t: kWh/t: kWh/sh.t: kWh/t: kWh/t: kWh/t: kWh/t: Range: No of Tests: Alumina: 17.9: 7-34: 6: Andesite: 20.1: 18.3: 20.1: 19.5: Barite: 6.3: 4.7: 5.2: 5.0: 5.8: 4-9: 7: Basalt: 18.9: 17.1: 18.8: 19.0: 19.0: Bauxite: 9.7: 9.5: 8.8: 9.7:
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 Bond work index (Bond, 1960) is based on Bond’s law, which states that the energy consumed is proportional to the 1.5 power of particle size rather than the square of Rittinger’s law. Accordingly, the energy consumed in reducing the particle size from x F to
Estimate 1 Crushing Strength of the gypsum sample 2 Bonds crushing work index from FTTM 121 at Bandung Institute of Technology
The Bond low-energy impact crushing work index (more informally, the Bond crushing work index) is not as common as the Bond ball mill work index, and it is a notoriously noisy test.. The test is a 'per-specimen' test where individual specimens of prepared rock are hand-picked by the test operator and placed into the apparatus.
Bond Work Index Mill (Grinding) Logarithm. Fine materials, such as sand, are not suitable for Bond Work Index Test. The material for bond grindability test should be coarse enough to allow stage crushing in the preparation of the specified6 mesh (3360 microns) feed to the test mill.
01-01-2016· crushing strength of the gypsum sample, 2. Bond’s crushing work index of gypsum. 3.4. A sample of granite passing a 7.5 cm square opening screen was suspended in a Bond’s pendulum test. The length of the pendulum was 413 mm and the mass of hammers is 13.6 kg each.
Indices with which the crushing resistance or the grindability in a wide meaning is expressed include the Rittinger number, crushing resistance, Hardgrove 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
BOND WORK INDEX (KWH/T) LOS ANGELES VALUE UCS (MPa) Very Easy 50+ 0 7 27+ 0 90 Medium 40 50 7 10 22 27 90 150 Difficult 20 30 14 18 12 17 220 300 Very Difficult 10 20 18 + 5 12 300 + Abrasiveness CLASSIFICATION FRENCH ABRASIVENESS ( G/TON) ABRASION INDEX Non Abrasive 0 100 0.0 0.1 Slightly Abrasive 100 600 0.1 0.4
21-03-2017· https://911metallurgist/equipment/laboratory/bond/impact-crushing-work-index/
A.A feed of gypsum with 80 % of material passing through a 50-mmscreen is washed to a product with 80 % passing through a 5-mm screen. If power required for crushing is 80 kW, what is the capacity of the crushing unit Work index for gypsum is 6.73 kWh/tonne.
Bauxite ore crusher is major crushing equipment in bonds crushing law and work index. work index for crushing -Rock Crusher. An ideal crusher would (1) have a large capacity (2) require a small power input per unit of product and (3) yield a 322 Bond crushing law and work index. Bond crushing work index OneMine Mining and Minerals Library.
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Estimate 1 Crushing Strength of the gypsum sample 2 Bonds crushing work index from FTTM 121 at Bandung Institute of Technology
Indices with which the crushing resistance or the grindability in a wide meaning is expressed include the Rittinger number, crushing resistance, Hardgrove 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
FIGURE 5: BOND ROD MILL WORK INDEX v. UNCONFINED COMPRESSIVE STRENGTH 0 100 200 300 400 UCS (MPa) 5 10 15 20 25 30 35 WiRM (metric) The lack of fit observed relating the crushing Work Index was expected to carry over to the other Bond Work Indices. Figure 5 displays the plot of rod mill Work Index (Wi RM) versus UCS. These
The Bond Standard Circuit Work Index used for circuit design (specific energy requirement, at the drive pinions), which is equal to the ore’s combined laboratory test Work Index. These are equal tothe (expected or design) Work Index of the Bond Standard Circuit, which is
moving surface of a crusher roll or jaw plate and the stationary plate surface at which point the material will be pinched. Angle varies with machine size and material lump size. Bond Work Index (BWI) — Kilowatt hour (kWh) per short ton required to reduce the material to 80% passing 100 microns. Breaker Block (Breaker Plate) — The steel anvil
WiBM Bond Ball Mill Test Work Index (kWh/t) Wic Bond Impact Crushing Test Work Index (kWh/t) WioACT Actual Operating Bond Work Index determined from measurements on the circuit (kWh/t) WiRM Bond Rod Mill Test Work Index (kWh/t) WiSTD Standard Circuit Bond Work Index (expected or designed) used for circuit design. Specific energy requirement at
BOND WORK INDEX (KWH/T) LOS ANGELES VALUE UCS (MPa) Very Easy 50+ 0 7 27+ 0 90 Medium 40 50 7 10 22 27 90 150 Difficult 20 30 14 18 12 17 220 300 Very Difficult 10 20 18 + 5 12 300 + Abrasiveness CLASSIFICATION FRENCH ABRASIVENESS ( G/TON) ABRASION INDEX Non Abrasive 0 100 0.0 0.1 Slightly Abrasive 100 600 0.1 0.4
8 Crusher Wear Parts Reference Guide Crusher Wear Parts Reference Guide 9 MATERIAL PROPERTIES TABLE WEAR PARTS OVERVIEW CRUSHABILITY CLASSIFICATION CRUSHABILITY (%) BOND WORK INDEX (KWH/T) LOS ANGELES VALUE UCS (MPa) Very Easy 50+ 0 7 27+ 0 90 Medium 40 50 7 10 22 27 90 150 Difficult 20 30 14 18 12 17 220 300
Bauxite ore crusher is major crushing equipment in bonds crushing law and work index. work index for crushing -Rock Crusher. An ideal crusher would (1) have a large capacity (2) require a small power input per unit of product and (3) yield a 322 Bond crushing law and work index. Bond crushing work index OneMine Mining and Minerals Library.
A.A feed of gypsum with 80 % of material passing through a 50-mmscreen is washed to a product with 80 % passing through a 5-mm screen. If power required for crushing is 80 kW, what is the capacity of the crushing unit Work index for gypsum is 6.73 kWh/tonne.
Estimate 1 Crushing Strength of the gypsum sample 2 Bonds crushing work index from FTTM 121 at Bandung Institute of Technology
Bond Work Index Mill (Grinding) Logarithm. Fine materials, such as sand, are not suitable for Bond Work Index Test. The material for bond grindability test should be coarse enough to allow stage crushing in the preparation of the specified6 mesh (3360 microns) feed to the test mill.
moving surface of a crusher roll or jaw plate and the stationary plate surface at which point the material will be pinched. Angle varies with machine size and material lump size. Bond Work Index (BWI) — Kilowatt hour (kWh) per short ton required to reduce the material to 80% passing 100 microns. Breaker Block (Breaker Plate) — The steel anvil
Indices with which the crushing resistance or the grindability in a wide meaning is expressed include the Rittinger number, crushing resistance, Hardgrove 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
Abstract The Bond work index is a measure of ore resistance to crushing and grinding and is determined using the Bond grindability test Its value constitutes ore characteristic and is used for industrial comminution plants designing Determining the Bond
WiBM Bond Ball Mill Test Work Index (kWh/t) Wic Bond Impact Crushing Test Work Index (kWh/t) WioACT Actual Operating Bond Work Index determined from measurements on the circuit (kWh/t) WiRM Bond Rod Mill Test Work Index (kWh/t) WiSTD Standard Circuit Bond Work Index (expected or designed) used for circuit design. Specific energy requirement at
The Bond low energy impact (crushing) work index test is specified to be performed on rock specimens between 50 mm and 75 mm in effective diameter. NQ-diameter drill core, frequently used in mineral exploration programs does not meet that specification, it being 45 mm diameter or less.
Ball Mill Bond Work Index For Limestone Crusher News. Iron ore crushing and dry separation process Ruffner Red Ore Mine gyratory crusher. such as limestone, phosphate, gypsum, abrasion index work index ore properties OneMine Mining and
01-11-1998· Using the Bond work index to measure operating comminution efficiency C. A. Rowland 1 Mining, Metallurgy & Exploration volume 15,pages 32–36 ( 1998 ) Cite this article
16-06-2021· * Bond F. C., “Crushing & Grinding Calculations”, Reprint from British Chemical Engineering, Allis-Chalmers Publication 07R9235B. Bond Low Energy Impact Test. The test determines the Bond Impact Work Index which is used with Bond’s Third Theory of Comminution to calculate net power requirements when sizing crushers*.