GB/T 31089-2014 English PDF

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GB/T 31089-2014: Computation and requirement of recovery ratio of coal mine
Status: Valid

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GB/T 31089-2014	189	Add to Cart	3 days	Computation and requirement of recovery ratio of coal mine	Valid

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Basic data

Standard ID: GB/T 31089-2014 (GB/T31089-2014)
Description (Translated English): Computation and requirement of recovery ratio of coal mine
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: D20
Classification of International Standard: 73.040
Word Count Estimation: 8,842
Date of Issue: 12/12/2014
Date of Implementation: 6/1/2015
Regulation (derived from): National Standards Bulletin 2014 No. 30
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 the terms, calculation methods and requirements for coal mine recovery rate. This Standard applies to underground mining of coal mines.

GB/T 31089-2014: Computation and requirement of recovery ratio of coal mine

---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.
Computation and requirement of recovery ratio of coal mine ICS 73.040 D20 National Standards of People's Republic of China Coal recovery rate calculation methods and requirements Issued on. 2014-12-22 2015-06-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. The standard proposed by China Coal Industry Association. This standard coal by the National Standardization Technical Committee (SAC/TC42) centralized. This standard was drafted. China University of Mining (Beijing), China Coal Research Institute Beijing Coal Chemical Research Branch. The main drafters of this standard. Ding Jia, Zhang Rui, Renchuan Peng, Jiang Ying, letter Chunhua, Hao Suli, Luo meteorite fly. Coal recovery rate calculation methods and requirements

1 Scope

This standard specifies the terms, calculation methods and requirements for coal mine recovery rate. This standard applies to underground mining of coal mines.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. Mine production Reserves Management Procedure [(1983) coal vocabulary No. 1275] Mine geology regulations (Trial) [(1984) coal vocabulary No. 607]

3 Terms and Definitions

The following terms and definitions apply to this document. 3.1 The recovery rate recoveryratio The actual proportion of mined coal accounts for use of resources and reserves. Press the exploitation of coal resources and reserves of the scope of use, the recovery rate can be divided into face recovery rate, recovery rate of mining area, mine recovery rate. 3.2 Face the recovery rate recoveryratioofworkingface Face Face actual mined coal accounts for use of resources and reserves ratio. 3.3 Extraction rate recoveryratioofdistrict Mining area actually mined coal mining area accounted for the proportion of resource use reserves. 3.4 Mine recovery rate recoveryratioofmine Mine actually mined coal mines accounted for the proportion of the use of reserves. 3.5 Use of reserves mined-outreserves; worked-outreserves In the coal mining process has been mined part of the amount of coal mined and the loss of resources and reserves.

4 calculated recovery rate

4.1 Face the recovery rate Face the recovery rate according to equation (1). ......

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