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NB/T 11127-2023: Technical specification for scrap detection of the steel cord conveyor belt in service
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| NB/T 11127-2023 | English | 219 |
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Technical specification for scrap detection of the steel cord conveyor belt in service
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NB/T 11127-2023
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Basic data | Standard ID | NB/T 11127-2023 (NB/T11127-2023) | | Description (Translated English) | Technical specification for scrap detection of the steel cord conveyor belt in service | | Sector / Industry | Energy Industry Standard (Recommended) | | Classification of Chinese Standard | D93 | | Classification of International Standard | 53.040.20 | | Word Count Estimation | 9,953 | | Date of Issue | 2023-02-06 | | Date of Implementation | 2023-08-06 | | Issuing agency(ies) | National Energy Administration | NB/T 11127-2023: Technical specification for scrap detection of the steel cord conveyor belt in service
---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.
ICS 53:040:20
CCSD93
People's Republic of China Energy Industry Standards
Technical specification for scrap detection of in-use steel cord conveyor belts
Released on 2023-02-06
2023-08-06 Implementation
Released by the National Energy Administration
table of contents
Preface III
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Test item 1
5 Detection method 2
6 Test result judgment and test report 3
Appendix A (Informative) Conveyor Belt Scrap Inspection Report Style 4
foreword
This document is in accordance with the provisions of GB/T 1:1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules for Standardization Documents"
drafting:
Please note that some contents of this document may refer to patents: The issuing agency of this document assumes no responsibility for identifying patents:
This document was proposed by the China Coal Industry Association:
This document is under the jurisdiction of the Coal Mine Safety Standardization Technical Committee of the Coal Industry:
This document is drafted by: Shanxi Shanxi Coal Group Technology Research Institute Co:, Ltd:, Liaoning University of Engineering Technology, Benxi Iron and Steel Group Co:, Ltd:,
Huajin Coking Coal Co:, Ltd:, Huayang New Material Technology Group Co:, Ltd:
The main drafters of this document: Du Hailong, Yuan Jing, Zhang Yuhang, Wang Shi, An Jinsong, Zhao Weiye, Jiao Sujun, Jing Tao, Huang Zuowei, Guo Yuwei,
Li Bu, Zhang Qitao, Wang Yafeng, Liang Chunhao, Cao Huaijian, Wang Jinlong, Li Rui, Yang Peng, Liang Dayong, Wang Beibei, Zhao Leqin, Chang Liang:
Technical specification for scrap detection of in-use steel cord conveyor belts
1 Scope
This document specifies the inspection items, inspection methods and judgment of inspection results for scrapped steel cord conveyor belts (hereinafter referred to as "conveyor belts")
determination and test reports, etc:
This document is applicable to scrap detection of steel cord conveyor belts in use in coal mines: Steel cord conveyor belts used in other industries can be implemented as a reference:
2 Normative references
The contents of the following documents constitute the essential provisions of this document through normative references in the text: Among them, dated references
For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to
this document:
GB/T 3836:2 Explosive atmospheres Part 2: Equipment protected by flameproof enclosure "d"
GB/T 3836:18 Explosive atmospheres Part 18: Intrinsically safe electrical systems
MT/T 668 Steel Cord Core Flame Retardant Conveyor Belt for Coal Mine
3 Terms and Definitions
The following terms and definitions apply to this document:
3:1
scrap scrap
The conveyor belt has been running for a certain number of years or the quality of use has declined due to broken cores and wear, reaching the level where safe operation cannot be guaranteed:
3:2
broken core brokencore
During the use of the conveyor belt, the wire rope core is broken due to uneven force:
3:3
The sum of the area with surface scratches, rubber surface defects, air bubbles, delamination, pits and other defects:
4 Test items
Conveyor belt scrap detection includes the following items:
a) Operating life:
b) Appearance quality:
1) The damaged area of the belt surface;
2) Covering layer thickness;
3) Depth of cracks on the surface of the covering layer;
4) Cumulative length of longitudinal tear;
5) Exposed wire rope core:
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