GB/T 15715-2014Performance evaluation for coal gravity separating equipment (English PDF)
煤用重选设备工艺性能评定方法
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Issued by
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Level / Type
National · Recommended
Issue date
April 28, 2014
Implementation date
July 1, 2014
Scope
GB/T 15715-2014 is the English-translated version of 煤用重选设备工艺性能评定方法.
GB/T 15715-2014 — This standard specifies the equipment for coal re-election process performance assessment indicators, data validation, curve drawing, and fill out the form and so on.
This standard applies to the following equipment for coal re-election. a) heavy media separation machine; b) jig; c) Other sorting equipment, equipment listed in Table C.1 in.
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Document preview — GB/T 15715-2014
National Standard of the People's Republic of China
- ICS
- 73.120
- Classification
- D 95
- Replacing
- GB/T 15715-2005
Issued by: General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Contents
- Foreword
- 1 Scope
- 2 Normative references
- 3 Terms and Definitions
- 4 Evaluation indicators
- 4.1 Evaluation of equipment re-election process performance indicators
Foreword
This standard was drafted in accordance with the rules of GB/T 1.1-2009 and GB/T 20000.2-2009 given.
This standard replaces GB/T 15715-2005 "coal re-election equipment - Performance evaluation", compared with the GB/T 15715-2005,
The main technical changes in addition to editorial changes outside as follows.
--- Removed the 2005 edition of the "5 test data";
--- Removed the 2005 edition involves MT145 "Evaluation Preparation Plant Process Computer Algorithms equipment re-election effect" related technologies
content.
This standard corresponds to ISO 923.2000 "Preparation Equipment performance evaluation," non-equivalent, the main differences are as follows.
--- This standard adopts the International Standard Evaluation Index in eight six indicators;
--- On the method of data processing is not fully international standards.
The standard proposed by China Coal Industry Association.
This standard coal by the National Standardization Technical Committee (SAC/TC42) centralized.
This standard was drafted. Tangshan Coal Science Research Institute.
1 Scope
This standard specifies the equipment for coal re-election process performance assessment indicators, data validation, curve drawing, and fill out the form and so on.
This standard applies to the following equipment for coal re-election.
a) heavy media separation machine;
b) jig;
c) Other sorting equipment, equipment listed in Table C.1 in.
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.
GB/T 7186 PREPARATION term
GB/T 16417 coal washability assessment method
3 Terms and Definitions
GB/T 7186 defined by the following terms and definitions apply to this document.
3.1
Feed rate speedoffeed
In performance testing process, to assess the amount of coal equipment, the unit is t/h per unit time.
4 Evaluation indicators
4.1 Evaluation of equipment re-election process performance indicators
Evaluation of equipment re-election process performance indicators total of six detailed indicators are as follows.
a) feed rate;
b) possible bias or imperfect degree;
c) Number of efficiency;
d) ash error;
e) total mismatch of content;
f) near the density of content.
4.1.1 feed rate
Throughout the performance testing process, as far as possible to maintain a uniform feed rate and feed rate was measured using the conventional method of precise, its single
Bit t/h.
4.1.2 may bias or imperfect degree
Possible bias generally used for heavy media separation, only the aqueous medium of imperfect separation. Their formula shown in Equation (1) and (2).
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 30 pages — is available in the English PDF.
Referenced standards
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Related Standards
GB/T 16417-2011 — Method for evaluating the washability of coal
GB/T 7186-2023 — Terms relating to coal preparation
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