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NB/T 11142-2023 English PDF

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NB/T 11142-2023: Ultrahigh pressure hydraulic slotting device in coal mine
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Basic data

Standard ID NB/T 11142-2023 (NB/T11142-2023)
Description (Translated English) Ultrahigh pressure hydraulic slotting device in coal mine
Sector / Industry Energy Industry Standard (Recommended)
Classification of Chinese Standard D09
Classification of International Standard 73.040
Word Count Estimation 13,128
Date of Issue 2023-02-06
Date of Implementation 2023-08-06
Issuing agency(ies) National Energy Administration

NB/T 11142-2023: Ultrahigh pressure hydraulic slotting device in 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.
ICS 73:040 CCSD09 People's Republic of China Energy Industry Standards Coal mine underground ultra-high pressure hydraulic slotting device 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 Model and device configuration 2 5 requirements 3 6 Test method 5 7 Inspection rules 6 8 Signs, instructions for use, packaging, transportation and storage 7

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: China Coal Science and Technology Group Chongqing Research Institute Co:, Ltd:, Chongqing University: The main drafters of this document: Zhang Yongjiang, Zhao Xusheng, Yuan Benqing, Lu Zhanjin, Zou Quanle, Xu Zunyu, Li Chengcheng, Ji Fei, Huang Zhenfei, Liu Jun, Liu Yongsan: Coal mine underground ultra-high pressure hydraulic slotting device

1 Scope

This document specifies the model, requirements, test methods, inspection rules, standards marking, packaging, transportation and storage, etc: This document is applicable to ultra-high pressure hydraulic (clear water) slotting devices in coal mines:

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 191 Packaging, storage and transportation icon marks GB/T 3836:1 Explosive atmospheres Part 1: General requirements for equipment GB/T 3836:2 Explosive atmospheres Part 2: Equipment protected by flameproof enclosure "d" GB/T 3836:4 Explosive atmospheres Part 4: Equipment protected by intrinsic safety type "i" GB/T 9969 General Rules for Instructions for Use of Industrial Products GB/T 10111 Generation of Random Numbers and Its Application in Product Quality Sampling Inspection GB/T 12467:4 Quality requirements for fusion welding of metallic materials - Part 4: Basic quality requirements GB/T 13306 Signage GB/T 16754 Design Principles for Emergency Stop Function of Machinery Safety AQ1043 Mining product safety sign identification MT/T 98 Inspection specification for hoses and hose assemblies for hydraulic supports MT/T 113 General test methods and judgment rules for flame retardant and antistatic properties of polymer products used in underground coal mines MT/T 188:2 Coal Mine Emulsion Pump Station Emulsion Pump MT/T 188:5 Specifications for Safety Valves of Coal Mine Emulsion Pumping Stations

3 Terms and Definitions

The following terms and definitions apply to this document: 3:1 Under the coal mine, the water jet with a pressure of not less than 80MPa is used to cut the coal body around the borehole to form a certain depth of flat seam Groove measures:

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