GB/T 24530-2009 English PDF

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GB/T 24530-2009: Iron ores for blast furnace feedstocks -- Determination of reduction under load
Status: Valid

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Basic data

Standard ID: GB/T 24530-2009 (GB/T24530-2009)
Description (Translated English): Iron ores for blast furnace feedstocks -- Determination of reduction under load
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: D31
Classification of International Standard: 73.060.10
Word Count Estimation: 12,192
Date of Issue: 2009-10-30
Date of Implementation: 2010-05-01
Quoted Standard: GB/T 10332.1; GB/T 6730.5; GB/T 20565; ISO 2597-1; ISO 9035
Adopted Standard: ISO 7992-2007, IDT
Regulation (derived from): National Standard Approval Announcement 2009 No.12 (Total No.152)
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies test methods to determine the physical stability of the reduction of iron ore restore the blast furnace with airflow through simulation. This standard is suitable for lump ore and pellets.

GB/T 24530-2009: Iron ores for blast furnace feedstocks -- Determination of reduction under load

---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.
Iron ores for blast furnace feedstocks. Determination of reduction under load ICS 73.060.10 D31 National Standards of People's Republic of China GB/T 24530-2009/ISO 7992.2007 Blast furnace iron ore reducing load measurement (ISO 7992.2007, IDT) Posted 2009-10-30 2010-05-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard is equivalent to international standards ISO 7992.2007 "blast furnace with a load of iron ore reduction Determination" (in English). For ease of use, this standard has been modified following editorial and non-technical difference of. --- "This International Standard" by "this standard"; "." --- With a decimal point instead of a comma as the decimal point, ""; --- Delete foreword international standards; --- Modify the references to the corresponding national standards; --- Rearrange the picture number and location; --- Chapter 10 trials reporting changes to Chapter 11, also made a non-technical content changes. Appendix A of this standard is a normative appendix, Appendix B is an informative annex. The standard proposed by China Iron and Steel Association. This standard by the National Standardization Technical Committee of the reduced iron ore and direct. This standard is drafted by. Baoshan Iron & Steel Co., Ltd. Participated in the drafting of this standard. Shangyu Hongxing Machinery Instrument Manufacturing Co., Metallurgical Industry Information Standards Institute. The main drafters of this standard. Sun Liang, Han Hao, Li Fengyun, SOUTHERN, the Chen Hailan, Zhou Xing, Wang Han, in a peak, close to Zhang, Chen Liang. GB/T 24530-2009/ISO 7992.2007 Blast furnace iron ore reducing load measurement Warning. Use of this standard shall have a person experiences regular lab work. This standard does not point out all possible security issues. Users have the responsibility to take appropriate safety and health practices and to ensure compliance with the conditions relevant national regulations.

1 Scope

This standard specifies the test methods to determine the physical stability of the reduction of iron ore during the reduction with blast furnace gas flow through simulation. This standard is suitable for lump ore and pellets.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB/T 10322.1 iron ore sampling and sample preparation method (GB/T 10322.1-2000, idtISO 3082.1998) GB/T 6730.5 Determination of the amount of total iron ore titanium trichloride reduction method (GB/T 6730.5-2007, ISO 9507.1990, MOD) GB/T 20565 term iron ore and direct reduced iron (GB/T 20565-2006, ISO 11323.2002, IDT) Determination of the amount of total iron ore ISO 2597-1 Part 1. stannous chloride reduction titration Determination of acid-soluble iron content of iron ore ISO 9035 titration

3 Terms and Definitions

The standards adopted GB/T 20565 in the terms and definitions. Principle 4 At 1050 ℃, the sample while applying the static load of the bed, which leads to carbon monoxide, hydrogen and nitrogen gas mixture of test samples Reduction until the reduction reaches 80%. When the test sample reduction of 80%, the measurement sample and the sample gas pressure bed bed height variation. 5 sampling, sample preparation and test sample preparation 5.1 Sampling and sample preparation Sampling and sample preparation according to GB/T 10322.1 performed. Size pellets and lump ore should be between 10.0mm ~ 12.5mm. Drying the sample size distribution described above requires at least 6kg. Samples at 105 ℃ ± 5 ℃ oven drying to constant weight, and then cooled to room temperature. Note. If two consecutive dry sample varies no more than 0.05% by mass of the original sample is considered state of the sample constant weight is reached. 5.2 Preparation of test sample Test samples were randomly taken from the sample. Note. The test sample can also be obtained by GB/T 10322.1 in bipartite and other manual reduction of sub-methods. From a sample of at least 5 parts of the test sample to be prepared about 1200g, each test sample weighed to the nearest 1g. Wherein, for the four test Mortem, 1 for chemical analysis. GB/T 24530-2009/ISO 7992.2007 ......

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