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GB/T 31256-2014: Conveyor belts -- Specification for rubber-or plastics-covered conveyor belts of textile construction for underground mining
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 31256-2014 | English | 354 |
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Conveyor belts -- Specification for rubber-or plastics-covered conveyor belts of textile construction for underground mining
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GB/T 31256-2014
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PDF similar to GB/T 31256-2014
Basic data | Standard ID | GB/T 31256-2014 (GB/T31256-2014) | | Description (Translated English) | Conveyor belts -- Specification for rubber-or plastics-covered conveyor belts of textile construction for underground mining | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G42 | | Classification of International Standard | 53.040.20 | | Word Count Estimation | 18,163 | | Date of Issue | 12/5/2014 | | Date of Implementation | 7/1/2015 | | Quoted Standard | GB/T 9867-2008; ISO 37; ISO 188; ISO 252; ISO 282; ISO 283; ISO 583; ISO 703; ISO 1120; ISO 10247; ISO 16851; EN 14973-2006 | | Adopted Standard | ISO 22721-2007, IDT | | Regulation (derived from) | Announcement of Newly Approved National Standards 2014 No. 27 | | 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 time when running on a flat lattice roller or rollers, with rubber or plastic cap class underground mining conveyor belt fabric should comply with the norms. This Standard does not apply to light conveyor ISO 21183-1 regulation | GB/T 31256-2014: Conveyor belts -- Specification for rubber-or plastics-covered conveyor belts of textile construction for underground mining
---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.
Conveyor belts. Specification for rubber-or plastics-covered conveyor belts of textile construction for underground mining
ICS 53.040.20
G42
National Standards of People's Republic of China
Conveyor belt having a rubber or plastic coating layer
Underground mining conveyor belt fabric specification
(ISO 22721.2007, IDT)
Issued on. 2014-12-05
2015-07-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Table of Contents
Introduction Ⅲ
1 Scope 1
2 Normative references 1
3 Terms and definitions 2
4 structure 2
5 3 length
6 width 3
7 rubber cover layer 3
Limit the total thickness and the thickness of the cover layer 8 with a deviation of 3
8.1 conveyor total thickness limit deviation 3
8.2 overburden thickness limit deviation 4
9 fabric transverse joint 4
9.1 General 4
9.2 layer 4
9.3 inner layer 4
9.4 with non-adjacent layer adjacent to layer 5
9.5 layer with joint 5
9.6 single conveyor belt, double conveyor belt and the overall fabric conveyor belt 5
10 fabric longitudinal joint 5
10.1 multilayer conveyor belt 5
10.1.1 Connector pitch 5
10.1.2 Connector Number 6
10.2 6 double conveyor belt
10.3 overall and single core fabric conveyor belt conveyor 6
11 Elongation 6
Full thickness tensile strength of 12 6
13 interlayer adhesion strength 6
14 into the groove of 7
15 7 Sampling
16 mark 7
17 flag 8
Matters Appendix A (informative) buyer and seller consultation 9
Useful Information Appendix B (informative) provided by the buyer when ordering 10
B.1 Applicability 10
B.2 replaced with 10
Additional information for the new device 10 B.3
Annex C (informative) deviation amount (Straight Line indicators) 12
References 13
Table 1 Limit the length of the non-deviation of the endless belt 3
Table 2 Net annular endless belt length limit deviations 3
Table 3 conveyor belt width and width limit deviation 4
Table 4 rubber conveyor belt cover layer 5 classification
Table 5 cover thickness limit deviation 5
Table 6 Maximum number of longitudinal joints 6
Table 7 Minimum Full thickness tensile strength 6
Table 8 between the belt layer having the minimum bond strength synthetic fiber with a core of 7
Table 9 Minimum troughability 7
Table 10 letters 8 mark yarn
Foreword
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
This standard uses the translation method identical with ISO 22721.2007 "conveyor belt having a rubber or plastic coating layer fabric for underground mining
Conveyor belt specification "(in English).
Correspondence between the consistency of the standards of international documents and normative references of the following documents.
GB/T 528-2009 vulcanized rubber or thermoplastic rubber tensile stress strain properties (ISO 37.2005, IDT);
GB/T 3512-2001 vulcanized rubber or thermoplastic rubber hot air and heat accelerated aging test (eqv ISO 188.1998);
GB/T 3690-2009 Conveyor belts - Full thickness tensile strength, elongation at break and the reference force elongation test method
(ISO 283.2007, IDT);
Strength test between GB/T 6759-2013 conveyor belt adhesive layer (ISO 252.2007, IDT);
GB/T 7983-2013 conveyor laterally flexible (troughability) test method (ISO 703.2007, MOD);
GB/T 12736-2009 conveyor belts - Test method for static mechanical joint strength (ISO 1120.2002, IDT);
HG/T 2410-2006 conveyor belt sample (ISO 282.1992, IDT).
The standard proposed by China Petroleum and Chemical Industry Association.
This standard by the National Standardization Technical Committee pulley and the belt conveyor Technical Committee (SAC/TC428/SC1) centralized.
This standard is drafted by. Zhejiang Double Arrow Rubber Co., Ltd. Fuxin Huanyu Rubber (Group) Co., Ltd., Zhejiang three-dimensional rubber
Products Co., Ltd., Shandong Bronte Industrial Co., Ltd. Qingdao Shinkansen technology consulting, Qingdao University of Science and Technology, Qingdao new material
Feed Technology Industrial Park Development Co., Ltd. Qingdao Branch Rubber Technology Services Ltd. Dah Sing.
Drafters of this standard. people will Shen, Zhang Jingwei, Zhang Fang, Yuan sea of \u200b\u200bbooks, Xin Yong record, Liu Li, Lvgui Qin Ye Zheng Yang.
Conveyor belt having a rubber or plastic coating layer
Underground mining conveyor belt fabric specification
WARNING. Users of this standard should be aware that the relevant EU standards EN14973 contained conductivity and flammability safety requirements, which
Specified in the underground conveyor equipment with various safety categories. In underground mining involves the purchase contract with the belt, it must be clearly defined
Shall comply with the requirements of this standard and EN14973. When using a conveyor belt, but also noted that local regulations on safety requirements.
1 Scope
This standard specifies the time when running on a flat roller or groove roller, with rubber or plastics covered with fabric underground mining
The conveyor belt should comply with the norms. This standard does not apply to light conveyor ISO 21183-1 requirements.
This standard does not include a plastic overlay requirements. This need to reach by the manufacturer and the purchaser in accordance with the type of plastic used
protocol.
Appendix A is not in the relevant provisions of the standards, but it is recommended producers and purchasers of contents agreement.
Appendix B indicates the detailed requirements with recommendations purchaser at the time of the purchase offer.
Whether straight conveyor run only after the installation to get evaluated. Accordingly, this requirement is beyond the scope of this standard. But attached
Appendix C gives a recommendation on the run with the amount of deviation.
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 9867-2008 Rubber, vulcanized or thermoplastic - Determination of abrasion resistance (abrasion rotating cylindrical drum machine method) (ISO 4649.
2002, IDT)
ISO 37 Rubber, vulcanized or thermoplastic - Determination of tensile stress-strain properties (Rubber, vulcanizedorthermoplas-
tic-Determinationoftensilestress-strainproperties)
ISO 188 vulcanized rubber or thermoplastic rubber hot air and heat accelerated aging test (Rubber, vulcanizedorthermo-
plastic-Acceleratedageingandheatresistancetests)
ISO 252 between the belt layer adhesion strength test method (Conveyorbelts-Adhesionbetweenconstitutiveel-
ements-Testmethods)
ISO 282 sampling conveyor (Conveyorbelts-Sampling)
ISO 283 Conveyor belts - Full thickness tensile strength, elongation at break and the reference force elongation test method (Textilecon-
veyorbelts-Fulthicknesstensilestrength, elongationatbreakandelongationatthereferenceload-
Testmethod)
ISO 583 fabric conveyor belt and the total thickness of the layers with a thickness of the test method (Conveyorbeltswithatextile
carcass-Totalbeltthicknessandthicknessofconstitutiveelements-Testmethods)
ISO 703 laterally flexible conveyor (troughability) Test Method [Conveyorbelts-Transverseflexibility
(Troughability) -Testmethod]
ISO 1120 Standard Test Method for Determination of static mechanical conveyor belt joint strength (Conveyorbelts-Determinationof
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