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Fraction mass weighted average particle size calculation method

A quality weighted average and calculation method technology, applied in complex mathematical operations, grain processing, etc., can solve problems such as large deviations of production parameters, control material sources, evaluate process crushing efficiency, etc., achieve reliable evaluation and improve production efficiency.

Active Publication Date: 2021-10-08
SINOHYDRO BUREAU 9
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Problems solved by technology

[0004] However, the production grading balance table is calculated based on the simulation process based on ideal conditions, and there are deficiencies such as large deviations from actual production parameters and complicated calculation processes. For the sand and gravel production system, it is difficult to control the source of materials and evaluate the crushing efficiency of the process.

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Embodiment Construction

[0030] The technical solution of the present invention is further described below, but the scope of protection is not limited to the description.

[0031] A method for calculating the weighted average particle diameter of particle size mass according to the present invention comprises the following main steps:

[0032] A. Calculation of A in the single-grain fraction n =(a max +a min ) / 2, where a max is the maximum mineral particle size in the single-grain class, a min is the smallest mineral particle size in the single-grain grade;

[0033] B. Calculation of single-grain quality weight C n = M n / Q, where M n is the mass of single-grained ore, and Q is the total mass of ore;

[0034] C. Calculate the weighted average particle size K=(A 1 ×C 1 )+(A 2 ×C 2 )+…+(A n ×C n );

[0035] D. According to step A to step C, respectively calculate the weighted average particle size K of the feed particle size 进 And the mass-weighted average particle size K of the output p...

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Abstract

The invention discloses a fraction mass weighted average particle size calculation method, and belongs to the technical field of machine-made sandstone production. The method mainly comprises the following steps that A, the diameter An = (amax + am) / 2 in a single fraction is calculated, wherein amax is the maximum mineral aggregate particle size in the single fraction, and amin is the minimum mineral aggregate particle size in the single fraction; B, the single-fraction mass weight Cn = Mn / Q is calculated, wherein Mn is the mass of the single-fraction mineral aggregate, and Q is the total mass of the mineral aggregate; C, a fraction mass weighted average particle size K = (A1 * C1) + (A2 * C2) +... + (An * Cn) is calculated; D, according to the step A to the step C, the feeding fraction mass weighted average particle size K < in > and the discharging fraction mass weighted average particle size K < out > are calculated respectively; and F, working procedure crushing efficiency P = (Kout / Kin) * 100% is calculated.

Description

technical field [0001] The invention relates to a method for calculating the weighted average particle size of particle size and quality, and belongs to the technical field of machine-made sandstone production. Background technique [0002] In the process of mining, affected by geological structure, hydrometeorology, mining technology and other factors, the particle size and particle size of the mineral materials mined from different parts and different periods are quite different, so engineering excavation materials or tailings are used as sand and gravel When producing raw materials, the particle size and particle size differences are even greater. The difference in particle size and size of mineral materials will lead to large fluctuations in the crushing efficiency of the sandstone production process. [0003] At present, the evaluation indicators of domestic machine-made sandstone mineral materials mainly focus on the physical properties and chemical composition of the...

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Application Information

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IPC IPC(8): G06F17/10B02C23/00
CPCG06F17/10B02C23/00
Inventor 严章国覃信海彭晓帆计春邓飞张延钱永亮亓朝阳雍丽兰
Owner SINOHYDRO BUREAU 9
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