GB/T 38064-2019Ball mill grinding system - Test method for grindability of materials (English PDF)
球磨粉磨系统 矿物物料易磨性试验方法
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
October 18, 2019
Implementation date
May 1, 2020
Scope
GB/T 38064-2019 is the English-translated version of 球磨粉磨系统 矿物物料易磨性试验方法.
GB/T 38064-2019 is the Chinese standard "Ball mill grinding system - Test method for grindability of materials". Its scope clause reads: This standard specifies the terms and definitions, test principles, test equipment, and sample system for the test method for the grindability of mineral materials in ball milling systems.
Preparation, test procedures and test results. This standard is applicable to the ball mill grinding system of raw materials such as ore, medium ore and smelting products of metal and non-metal minerals. Determination of sex. Its clauses include terms and definitions.
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Document preview — GB/T 38064-2019
National Standard of the People's Republic of China
- ICS
- 73.120
- Classification
- D 94
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 3.1 Ball milling index balmilworkindex
- 3.2 Feeding size thesizeofthemilfeed
- 3.3 Product size
- 3.4 Cyclic load circulatingload
- 3.5 Equilibrium state
1 Scope
This standard specifies the terms and definitions, test principles, test equipment, and sample system for the test method for the grindability of mineral materials in ball milling systems.
Preparation, test procedures and test results.
This standard is applicable to the ball mill grinding system of raw materials such as ore, medium ore and smelting products of metal and non-metal minerals.
Determination of sex.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 6003.1 Test sieves - Technical requirements and testing - Part 1
3 Terms and definitions
The following terms and definitions apply to this document.
3.1 Ball milling index balmilworkindex
Based on the index of FCBond's pulverization theory, it characterizes the ball-grinding wearability of mineral raw materials.
3.2 Feeding size thesizeofthemilfeed
F80
The size of the square hole mesh when the feed rate of the ore sample is 80%.
Note. The unit is micrometer (µm).
3.3 Product size
P80
The square hole mesh size when the grinding product pass rate is 80%.
Note. The unit is micrometer (µm).
3.4 Cyclic load circulatingload
In the material of the mill, it is necessary to return the ratio of the coarse powder quality of the mill to the fine powder quality of the finished sieve.
3.5 Equilibrium state
After three consecutive grindings, the cycle load is consistent with (250±5)%, and the difference in the quality of the finished product per revolution of the mill is less than the average value.
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
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