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GB/T 29723.5-2019: Grade and limit of major process energy consumption for coal mine - Part 5: Main elevating system Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid
Similar standardsGB/T 29723.5-2019: Grade and limit of major process energy consumption for coal mine - Part 5: Main elevating system---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT29723.5-2019 GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 27.010 D 98 Grade and limit of major process energy consumption for coal mine - Part 5: Main elevating system ISSUED ON: JUNE 04, 2019 IMPLEMENTED ON: JANUARY 01, 2020 Issued by: State Administration for Market Regulation; Standardization Administration of the PRC. Table of ContentsForeword ... 3 1 Scope ... 4 2 Normative references ... 4 3 Terms and definitions ... 4 4 Basic requirements ... 5 5 Calculation methods of process energy consumption indexes ... 6 6 Grade division and limit of process energy consumption index... 8 Appendix A (Informative) Relevant conversion factors ... 9 Grade and limit of major process energy consumption for coal mine - Part 5: Main elevating system1 ScopeThis Part of GB/T 29723 specifies the terms and definitions, basic requirements, calculation methods of energy consumption indexes, grade division and limit of energy consumption index for the main elevating system process in use in coal mines. This Part is applicable to the energy consumption calculation and grade division of the main elevating system of underground coal mine. Other types of elevating systems can also refer to it for use.2 Normative referencesThe following documents are indispensable for the application of this document. For the dated references, only the editions with the dates indicated are applicable to this document. For the undated references, the latest edition (including all the amendments) are applicable to this document. GB/T 7679.3-2005 Mining machinery terminology - Part 3: Winding equipment GB/T 29453 Specification for equipping and managing of the measuring instrument of energy in coal enterprise3 Terms and definitionsThe terms and definitions defined in GB/T 7679.3-2005 and the following ones apply to this document. For ease of use, some terms and definitions in GB/T 7679.3-2005 are listed repeatedly below. 3.1 Mine hoist The electromechanical equipment for lifting and releasing personnel and materials in the mine, which drives the hoisting container connected with steel wire rope through the rotation of drum, with a drum diameter of 2 m and above.5 Calculation methods of process energy consumptionindexes 5.1 Energy use boundary The switch cabinet, which controls the start, stop and operation of the motor of the mine hoist or mine winder, is used as the starting point of the system's electric energy measurement. The exit of the mine hoist or mine winder is used as the terminal of the main elevating system. Include the energy consumption of equipment such as mine hoist or mine winder traction motor, electric control equipment, safety protection device, and signal system. 5.2 Statistical period The process energy consumption of main elevating system is based on statistical data. The statistical period is one year. 5.3 Parameters and ranges 5.3.1 Power consumption (W) The power consumption of the main elevating system during the statistical period. USE a watt-hour meter for measurement. The watt-hour meter shall be installed on the switch cabinet, which controls the operation of the mine hoist or mine winder. 5.3.2 Elevating mass (Q) The cumulative mass of personnel or materials lifted by the main elevating system during the statistical period. 5.3.3 Elevating vertical height (H) The vertical height for the hoisting container from the downhole material-loading point or man-carrying place to the up-hole material-unloading point or man- releasing place. 5.3.4 Inclined shaft lifting angle (α) The angle BETWEEN the connecting line of the hoisting container from the downhole material-loading point or man-carrying place to the up-hole material- unloading point or man-releasing place AND the horizontal plane. 5.3.5 Mass of steel wire rope (m0) The product OF the operating length of the hoisting container from the downhole material-loading point or man-carrying place to the up-hole material- unloading point or man-releasing place AND the mass of the steel wire rope per unit length. 5.3.6 Average mass of personnel or materials elevated at one time (m) The net mass of personnel or materials for each lift. If multiple hoisting containers are lifted at a time, it is the sum of the loading capacity of each hoisting container. 5.4 Calculation methods 5.4.1 Calculation of process energy consumption of main elevating system of vertical shaft The process energy consumption of main elevating system of vertical shaft is calculated according to formula (1): Where: Et - The process energy consumption of main elevating system, in kilowatt- hours per ton and hundred meters [kW • h/(t • hm)]; W - The power consumption of the main elevating system, in kilowatt-hours (kW • h); Q - The cumulative mass of personnel or materials lifted by the main elevating system, in tons (t); H - The vertical height of mine hoisting, in meters (m); K - The conversion factor of vertical shaft elevating height. Refer to Appendix A, Table A.1. 5.4.2 Calculation of process energy consumption of main elevating system of inclined shaft The process energy consumption of main elevating system of inclined shaft is calculated according to formula (2): ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of English version of GB/T 29723.5-2019 be delivered?Answer: The full copy PDF of English version of GB/T 29723.5-2019 can be downloaded in 9 seconds, and it will also be emailed to you in 9 seconds (double mechanisms to ensure the delivery reliably), with PDF-invoice.Question 2: Can I share the purchased PDF of GB/T 29723.5-2019_English with my colleagues?Answer: Yes. 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