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US8783589B2 Grinding method Google Patents

A method of grinding a particulate material, comprising grinding said material in a stirred mill in the presence of a grinding media comprising rod-shaped particles, wherein said rod-shaped particles have an aspect ratio of equal to or greater than about 2:1.

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US7938346B2 Grinding method for inorganic particulate

A method of preparing a steep particle size inorganic particulate material includes grinding an aqueous suspension of an inorganic particulate material having a solids content of less than 35% and including a sub-effective amount of a dispersant for the inorganic particulate material. The method may further include dewatering the aqueous suspension to a solids content of at least

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EP2174717A1 Grinding method Google Patents

A method of grinding a particulate material, comprising grinding said material in a stirred mill in the presence of a grinding media comprising rod-shaped particles, wherein said rod-shaped particles have an aspect ratio of equal to or greater than about 2:1.

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Effects of grinding method, particle size, and physical

Diets differed in 1) grinding method, either hammer or roller mill; 2) physical form, either mash or expandate; and 3) particle size, either coarsely or finely ground. During the experimental trial, the laying performance of each feeding group was recorded daily and the feed intake and BW determined weekly.

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Grinding method Imerys

A method of grinding a particulate material, comprising grinding said material in a stirred mill in the presence of a grinding media comprising rod-shaped particles, wherein said rod-shaped particles have an aspect ratio of equal to or greater than about 2:1.

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Grinding method Imerys Minerals Limited

The Grinding Method . The grinding is suitably performed in conventional manner. The grinding may be an attrition grinding process in the presence of a particulate grinding medium, or may be an autogenous grinding process, i.e. one in the absence of a grinding medium. The particulate grinding medium, when present, may be of a natural or a

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Grinding of particulate material PEARCE DAVID ANTHONY

Apparatus (1) for grinding a suspension of a particulate solid material.The apparatus (1) comprises a grinding chamber (2), means (7, 8) for introducing a suspension of the particulate solid material into the grinding chamber (2) and an impeller (6) which is rotated and thereby agitates the particulate grinding medium and the suspension of particulate solid material in the grinding

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US20130199919A1 Method of and system for grinding

A pyrolysis plant 20 comprises a grinding pyrolyser 22,being a machine or apparatus in which both particle size reduction and pyrolysis occur simultaneously. Plant 20 also comprises a bin (hopper) 30 for holding wet particulate biomass feedstock. Chute 32 leads from the bin 30 to a biomass dryer 34 which reduces moisture content of the feedstock as low as possible, e.g., to

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EPO T 1362/10 (Grinding method with "sub-effective

1.1.2 Vis-à-vis E1 the problem to be solved is the provision of a grinding method for inorganic particulate material improving discolouration properties, compatibility with dispersants and filtration properties. 1.1.3 As the solution to this problem the method described in Claim 1 of the patent-in-suit has been proposed by the Respondent.

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Effect of grinding method and particle size distribution

Mar 01, 2017· Hence, based on the above-mentioned findings, it is concluded that the inter-grinding method for production of PPC and PCC is strongly recommended. 3.2. Accelerated Mortar-Bar method. The results for the average change length of the mortar bars according to ASTM C1260 and ASTM C1567 made with 10 types of cement are given in Fig. 3a and b.

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Mechanical Grinding for Particulate Organic‐Matter

Particulate organic matter (POM) is recognized as a valuable measure of labile soil organic matter. The method usually requires hand‐sieving through a 2‐mm sieve. Hand‐sieving has not been widely adopted by soil testing laboratories, where samples are generally mechanically ground.

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Effect of grinding method and particle size distribution

Mar 01, 2017· Hence, based on the above-mentioned findings, it is concluded that the inter-grinding method for production of PPC and PCC is strongly recommended. 3.2. Accelerated Mortar-Bar method. The results for the average change length of the mortar bars according to ASTM C1260 and ASTM C1567 made with 10 types of cement are given in Fig. 3a and b.

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Effect of particulate environment on the grinding kinetics

Sep 20, 2020· The feed charge was prepared by pre-grinding the particulate material in the test ball mill. The results of these experiments have led to several important findings. In general, the value of k j is determined by the top-size-fraction method [17,18] and the values of the b i,j parameters are determined by the method of Herbst and Fuerstenau

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[PDF] Effects of different grinding methods and particle

The effect of grinding method of barley and wheat on total tract digestibility of barley±soyabean meal and wheat±soyabean meal diet, N-balance (experiments 1 and 2) and pig performance (experiments 3 and 4) was studied. Cereals were ground by four mill types and there were two degrees of grinding fineness within each mill type. Mill types were a hammer mill (HM, sieve size 3 and 5 mm), a

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Numerical and experimental validation of a particle

Aug 17, 2017· In this paper, a numerical approach with an experimental validation is introduced for modelling high-speed metal grinding processes in 6061-T6 aluminum alloys. The derivation of the present numerical method starts with an establishment of a stabilized particle Galerkin approximation. A non-residual penalty term from strain smoothing is introduced as a means of stabilizing the particle

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1.1 PARTICULATE MATTER

Particulate matter is any finely divided solid or liquid material, other than uncombined water, as measured by the reference methods (EPA, 1992). In other words, by specifying how the particles are to be collected, the reference methods define what particulate matter is. The reference methods define the temperature at which the

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