YS/T 804-2012 English PDF

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YS/T 804-2012: Test method for the grinding work index of bauxitic ore
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
YS/T 804-2012	159	Add to Cart	3 days	Test method for the grinding work index of bauxitic ore	Valid

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Basic data

Standard ID: YS/T 804-2012 (YS/T804-2012)
Description (Translated English): Test method for the grinding work index of bauxitic ore
Sector / Industry: Nonferrous Metallurgy Industry Standard (Recommended)
Classification of Chinese Standard: H30
Classification of International Standard: 77.120.01
Word Count Estimation: 6,677
Regulation (derived from): Ministry of Industry and Information Technology Bulletin 2012 No. 55; industry standard filing Notice 2013 No. 1 (No. 157 overall)
Issuing agency(ies): Ministry of Industry and Information Technology
Summary: This standard specifies the bauxite mine stone work index measurement method. This standard applies to mine bauxite grinding work index measurement method. Applicable product particle size range of 45��m ~ 500��m.

YS/T 804-2012: Test method for the grinding work index of bauxitic ore

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Test method for the grinding work index of bauxitic ore ICS 77.120.01 H30 People's Republic of China Nonferrous Metals Industry Standard Bauxite ore stone work index measurement method Issued on. 2012-11-07 2013-03-01 implementation Ministry of Industry and Information Technology of the People's Republic of China released

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. This standard by the national non-ferrous metals Standardization Technical Committee (SAC/TC243) centralized. This standard is drafted by. Aluminum Corporation of China Guizhou Branch. Participated in the drafting of this standard. Aluminum Corporation of China Guangxi Branch, Aluminum Corporation of China Zhengzhou Research Institute. The main drafters of this standard. Liu Wenyi, Fang Jianchuan, HE Pu Rui Lin Qi. Bauxite ore stone work index measurement method

1 Scope

This standard specifies the method for measuring the bauxite grinding work index. Grinding Work Index This standard applies to bauxite measurement method. Applicable product size range of 45μm ~ 500μm.

2 Terms and definitions

The following terms and definitions apply to this document. 2.1 Bauxite grinding work index bauxitegrindingworkindex Bauxite from the measured particle size into the mill grinding theory for the finished product, the required energy consumption. 2.2 Circulating load cyclicload In the closed-circuit grinding, and from the classifier to return to the coarse material grinding mill and then called back to sand. Return sand quality and original mill to the ore quality The percentage amount called cyclic load.

3 PRINCIPLE OF THE METHOD

By a predetermined grinding ball mill work index of the specimens were subjected to intermittent grinding cycle. When 3 consecutive grinding cycle load are in line (250 ± 5)%, and the mill per revolution of the poor quality of the finished product is less than 3% of the average of the time, according to the grinding mill work index of production And product size, and sample size standard sieve sieve sieve sieve size and product standards, and seek grinding work index sample.

4 equipment and instruments

4.1 Grinding Mill Work Index. cylinder effective size. φ305mm × 305mm; speed. 70r/min; the ball ball ball weight The amount of not less than 19.5kg, Ball grading. φ38mm43 months, φ31.8mm67 months, φ25.4mm10 months, φ19.1mm71 months, φ15.1mm94 months. Note. Before using the new ball to use siliceous material will wear steel balls to lose its metallic luster polishing before use. 4.2 standard sieve. its dimensions are shown in Table 1. Table 1 test standard sieve size Mesh size/μm purposes Samples were prepared using 3350 Sample size analysis Finished size analysis ......

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