Processing capacity:219-2072t/h
Feeding size:459-997mm
Appliable Materials: granite,quartz,dolomite,iron ore,limestone,coal gangue,construction rubbish,sandstone,cement clinker,basalt,quartz stone,green stone, copper ore,limestone,dolomite,bluestone,iron ore,glass,concrete,cement clinker etc.
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Jan 01, 2016 · The impact crushing strength of rocks so determined is used to calculate the Bond crushing work index using the expression (3.9) W i = C × I R e l a t i v e d e n s i t y o f s a m p l e kWh / t where C = a constant which converts the impact crushing strength, numerically and …
May 14, 2010 · Rittinger's law states that work required in crushing is proportional to the new surface created. In other words, crushing efficiency is constant and for a given machine and feed material is independent of the sizes of feed and product. Rittinger’s law is written as- P/ ṁ = Kr (1/Dsb – 1/Dsa)
Consider a bond and the connected atoms to be a spring with two masses attached. Using the force constant k (which reflects the stiffness of the spring) and the two masses m 1 and m 2, then the equation indicates how the frequency, u, of the absorption should change as the properties of the system change
where E = crushing energy. K R = Rittinger’s constant. F C = crushing strength of the material. 4.4. A Blake jaw crusher had the following dimensions: Gape = 160 cm, open set = 24.4 cm, close set = 5.0 cm. The width of the hopper was 1.5 times the gape. The ore contained 20% material minus 4.0 cm
Energy Required to Crush Coarse Materials according to Bond's Law calculates the energy needed to crush raw materials such that they pass through a sieve aperture of lower diameter and is represented as E=Wi* ((100/d1)^0.5- (100/d2)^0.5) or Energy per unit mass of feed=Work Index* ((100/Feed Diameter)^0.5- (100/Output Diameter)^0.5)
In using either of the models due to Rittinger and Kick the relevant constant must be obtained by experiment using both the same equipment and the same material. 15.3 Bond’s law and Work Index Bond state that the energy required for size reduction is proportional to the square root of the surface- volume ratio of the product. In Bond’s
Energy Required to Crush Coarse Materials according to Bond's Law calculates the energy needed to crush raw materials such that they pass through a sieve aperture of lower diameter and is represented as E = W i *((100/ d1)^0.5-(100/ d2)^0.5) or energy_per_unit_mass_of_feed = Work Index *((100/ Feed Diameter)^0.5-(100/ Output Diameter)^0.5). Work Index always means the equivalent amount of energy …
May 14, 2010 · Bond’s law. Bond postulated that work required to form particles of size Dp from very large feed is proportional to the square root of the surface-to-volume ratio of the product, Sp/Vp. By relation Sp/Vp = 6/ɸsDp, from which it follows that. P/ ṁ = Kb/ (Dp)^0.5. Where Kb is a constant that depends on the type of machine and on the material being crushed
• Based on Bond's Crushing Law, the power required to crush a certain material will change by % if the diameter of the product is made smaller by 50%. • In crushing a certain ore, the feed is such 80% is less than 50.8 mm in size and the product size is such that 80% is less than 6.35 mm. The power required is 89.5 kW. Use the Bond equation
E s = surface energy increment per unit mass of material (J/kg) E a = total energy transferred to the material per unit mass (J/kg) A, A 0 = surface area per unit mass (specific surface area) of the milled material and of the feed, respectively (m 2 /kg). Crushing efficiency is …
where x f and x p are measured in micrometers and E in kWh/ton, Bond put the constant C B = 5W i, where W i is the Bond Work Index, defined as the gross energy requirement in kWh/ton of feed to reduce a unit mass of material from an infinite particle size to a size such that 80% (i.e., Φ = 2) of the product passing through a 100 µm sieve (i.e, x p = 100 µm) . The Bond Work Index is material specific and is obtained …
CH bonds: C-C-H (2900 cm-1), C=C-H (3100 cm-1) and C≡C-H (3300 cm-1), (n.b.make sure that you understand the bond strengths order) 2. for heavier atoms attached (larger m value), u decreases. As examples of this, in order of increasing reduced masscompare: C-H (3000 cm-1) C-C (1000 cm-1)
bond crushing work index canada Know More. bond crushing law in ball mill janhalffman-hersteldienst.be. 1 day ago· calculating crushing constant using bond s law. crusher operating work index calculation
Sep 01, 2020 · m ± = (mν ( Zn) Zn mν ( Cl) Cl) 1 ν ( Zn) + ν ( Cl) = [(0.02)1(0.04)2]1 3 = [(0.02)(0.0016)]1 3 = 3.17 × 10 − 2. To calculate the mean ionic activity coefficient, we first need the ionic strength of the solution from Equation 5.8.2: I = 1 2[(0.02)( + 2)2 + (0.04)( − 1)2] = 1 2(0.08 + 0.04) = 0.06
Apr 23, 2009 · Calculate r: 2.1*10^.6 m- 2.3*10^-8 m= 2.1 *10^-6 m. It seems fishy that my r is the same as my r initial. Plug in to equation: ke* [ (Q1*Q2)/r]= k* (change in r) 8.99*10^9 Nm^2/C^2 * [ (-1.60*10^-19C)* (+1.60*10^-19C)/ (2.1*10^-6 m)]= k* (2.1*10^-6 m) k= -4.76*10^-15
One of the ways we can calculate the change in enthalpy of a system is with Hess's law, which you'll recall states that then total enthalpy change for a chemical reaction doesn't depend on what pathway it takes, but only on its initial and final states. It's all been expressed in terms of standard enthalpy's of formation
• Based on Bond's Crushing Law, the power required to crush a certain material will change by % if the diameter of the product is made smaller by 50%. • In crushing a certain ore, the feed is such 80% is less than 50.8 mm in size and the product size is such that 80% is less than 6.35 mm. The power required is 89.5 kW. Use the Bond equation
Sep 01, 2020 · m ± = (mν ( Zn) Zn mν ( Cl) Cl) 1 ν ( Zn) + ν ( Cl) = [(0.02)1(0.04)2]1 3 = [(0.02)(0.0016)]1 3 = 3.17 × 10 − 2. To calculate the mean ionic activity coefficient, we first need the ionic strength of the solution from Equation 5.8.2: I = 1 2[(0.02)( + 2)2 + (0.04)( − 1)2] = 1 2(0.08 + 0.04) = 0.06
Jan 03, 2019 · One of the ways we can calculate the change in enthalpy of a system is with Hess's law, which you'll recall states that then total enthalpy change for a chemical reaction doesn't depend on what pathway it takes, but …
Oct 10, 2014 · • Kick’s law: – putting p = −1, then integration gives: – Writing C = KKfc, then Kick’s law, is obtained as: – This supposes that the energy required is directly related to the reduction ratio L1/L2which means that the energy required to crush a given amount of material from a 50 mm to a 25 mm size is the same as that required to reduce the size from 12 mm to 6 mm. • Bond’s Law: – Neither of these two …
Jun 25, 2019 · Understanding the Constant Yield Method . For tax purposes, either the ratable accrual method or the constant yield method can be used to calculate the yield on a discount bond or zero-coupon bond
ΔH° = −393.5 kJ. C (s, diamond) + O 2 (g) ---> CO 2 (g) ΔH° = −395.4 kJ. What I am going to do is reverse the bottom equation. This will put the C (s, diamond) on the product side, where we need it. Also, when I add the two equations together, the oxygen and carbon dioxide will cancel out
The equation for elastic potential energy relates the displacement, x , and the spring constant, k , to the elastic potential PE el, and it takes the same basic form as the equation for kinetic energy: PE_{el}=\frac{1}{2}kx^2. As a form of energy, the units of elastic potential energy are joules (J)
Particle Size = (0.9 x λ)/ (d cosθ) λ = 1.54060 Å (in the case of CuKa1) so, 0.9 x λ = 1.38654. Θ = 2θ/2 (in the example = 20/2) d = the full width at half maximum intensity of the peak (in
Learn more about Hooke's law and how to calculate the spring constant including the formula, insight on a spring's impact on force, and an example problem!
Aug 25, 2020 · Given: balanced chemical equation, rate constant, time interval, and initial concentration. Asked for: final concentration and time required to reach specified concentration. Strategy: Given k, t, and [A] 0, use the integrated rate law for a second-order reaction to calculate [A]. Setting [A] equal to 1/10 of [A] 0, use the same equation to
Simple to use Ohm's Law Calculator. Calculate Power, Current, Voltage or Resistance. Just enter 2 known values and the calculator will solve for the others
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