NB/T 10726-2021Technical requirements for pipeline transportation of paste filling in coal mine (English PDF)
煤矿膏体充填管道输送工艺要求
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Issued by
NEA
Level / Type
Industry · Recommended
Issue date
November 16, 2021
Implementation date
February 16, 2022
Scope
NB/T 10726-2021 is the English-translated version of 煤矿膏体充填管道输送工艺要求.
NB/T 10726-2021 covers the pipeline transport of paste backfill in coal mines.
It gives general requirements, describes how the filling pipeline system is built up, from the surface pipeline leaving the filling pump through the borehole pipeline and the underground trunk pipeline to the working face pipeline and the return pipeline leading to the settling tank, and sets the conveying process requirements.
Terms such as pipe pressure and protection valve are defined, and pumping practice refers to JGJ/T 10-2011. Mines and contractors running paste filling operations apply it. Issued on 16 November 2021, it has applied since 16 February 2022.
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Document preview — NB/T 10726-2021
National Standard of the People's Republic of China
- Classification
- D 15
Issued by: National Energy Administration of the People's Republic of China
Contents
- Preface
- 1 Scope
- 2 Normative references
- 3 Terms and Definitions
- 4 General Requirements
- 5 Filling piping system composition
- 6 Conveying process requirements
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 of Standardization Documents" Drafting.
1 Scope
This document specifies the general requirements for coal mine paste filling pipeline transportation, the composition of filling pipeline system and the requirements for transportation technology.
This document applies to coal mine paste filling pipeline transportation.
2 Normative references
The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document.
GB/T 8163-2018 Seamless steel pipes for conveying fluids
JGJ/T 10-2011 Technical Specification for Concrete Pumping Construction
JB/T 13439-2018 Mine Piston Filling Pumping Machine
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1 Pipe pressure
The internal pressure on the wall of the paste delivery pipeline.
3.2 Surface filling pipeline
The connecting pipe between the outlet of the ground filling pump and the filling hole.
3.3 Borehole filling pipeline
The connecting pipeline between the ground filling pipeline and the underground filling trunk pipeline.
3.4 Trunk filling pipeline
The connecting pipe between the borehole pipe and the downhole filling face pipe.
3.5 Working face filling pipeline
The connecting pipeline between the main line filling pipeline and the downhole return pipeline.
3.6 Return pipeline
The connecting pipe between the working face filling pipe and the sedimentation tank.
3.7 Protection valve
A device that controls the flow of paste filling material in the pipeline and ensures stable paste delivery.
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Referenced standards
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Related Standards
GB/T 8163-2018 — Seamless steel pipes for liquid service
JB/T 13439-2018 — Piston backfill pumping machines for mining
JGJ/T 10-2011 — Technical specification for construction of conc rete pumping
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NB/T 10726-2021
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