Knowledge

Underground mine ventilation

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where ventilation may be required to cool the ambient temperature in a deep hot mine, however auto-compression must also be taken into account. As per CMR 153-2-(i)(2017), in every ventilating district not less than six cubic meters per minute of air per person employed in the district on the largest shift or not less than 2.5 cubic meters per minute of air per daily tons output whichever is larger, passes along the last ventilation connection in the district which means the inbye-most gallery in the district along which the air passes.
17: 235: 25: 110:. The air is distributed through the mine via internal ventilation raises and ramps, and flows are controlled by regulators and permanently mounted ventilation fans. An auxiliary ventilation system takes air from the flow-through system and distributes it to the mine workings via temporarily mounted ventilation fans, 144:
based on a wide variety of parameters. In most countries minimum requirements are outlined by law, regulation or standards. However, in some developing countries the mandated ventilation requirement may be insufficient, and the mining company may have to increase the ventilation flow, in particular
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Sufficient volume of air is required for proper ventilation. A bulk of electric power is required for driving fans. By installing variable speed control air quantity can be optimized hence the power. At every place in the mine where persons are required to work or pass, the air should not contain
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less than 19% of oxygen or more than 0.5% of carbon dioxide or any noxious gas in quantity likely to affect the health of any person. The percentage of inflammable gas does not exceed 0.75% in the general body of the return air of any ventilating district and 1.25% in any place in the mine.
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monoxide, and to control dust levels. Additionally, ventilation systems help in managing the heat generated by mining operations and equipment, ensuring a safer working environment. Effective mine ventilation designs often incorporate both natural and
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in any working place does not exceed 33.5°C and where the wet bulb temperature exceeds 30.5°C arrangements are made to ventilate the same with a current of air moving at a speed of not less than one meter per second.
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mines often require sophisticated ventilation systems to ensure the safety and health of miners. Ventilation shafts are integral components of these systems, providing fresh air to deeper sections and removing
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and disposable fabric or steel ducting. Auxiliary fan and duct systems may be either forcing systems, where fresh air is pushed into mine headings, or exhausting systems that draw out contaminated air.
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ventilation air may need to be heated during winter months. This will make the working environment more hospitable for miners, and prevent freezing of workings, in particular water pipes. In
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to power the ventilation fans, which may account for one third of a typical underground mine's entire electrical power cost.
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is the main ventilation circuit for the mine. Air enters the mine from the surface via a
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Wang, Hartman, Mutmansky, Ramani, "Y. J., Howard L. , Jan M., Raja V. (November 1997).
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MNCU1107A Implement the Ventilation Management Plan - Commonwealth of Australia 2001
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The largest component of the operating cost for mine ventilation is
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Mine Ventilation: Proceedings of the 10th US / North American Mine
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of a mine with sufficient volume to dilute and remove dust and
539: 584: 463: 107: 44: 447: 380:Mine Ventilation and Air Conditioning, 3rd Edition 945: 433: 161:mines, where the mining horizon is above the 285: 406:) CS1 maint: multiple names: authors list ( 440: 426: 20:Schematic of underground mine ventilation 23: 15: 340: 90: 946: 118: 421: 300:: McIntosh Engineering. p. 157. 28:The mine ventilation fan, before 1908 229: 173:are designed to operate below 0°C. 13: 825:Naples underground geothermal zone 14: 970: 233: 343:SME Mining Engineering Handbook 871:Forestiere Underground Gardens 734:Underground mining (soft rock) 729:Underground mining (hard rock) 714:Subsurface utility engineering 371: 359: 334: 325: 225:mechanical ventilation methods 127: 35:provides a flow of air to the 1: 402:: CS1 maint: date and year ( 265: 724:Underground mine ventilation 33:Underground mine ventilation 7: 881:Underground House Las Vegas 286:De la Vergne, Jack (2003). 80:, and the orebody itself. 10: 975: 876:Underground House Colorado 805:Underground City, Montreal 800:Underground City (Beijing) 289:Hard Rock Miner's Handbook 184: 148: 920: 907:Hockerton Housing Project 894: 858: 742: 690: 628: 487: 456: 448:Man-made and man-related 132:The volume (expressed in 921:Earth shelters Australia 701:underground construction 96:Flow-through ventilation 661:Missile launch facility 382:(3rd ed.). Wiley. 341:Darling, Peter (2011). 138:cubic meters per second 886:Underground World Home 29: 21: 775:Kőbánya cellar system 770:Houston tunnel system 709:Rock-cut architecture 134:cubic feet per minute 27: 19: 850:Subterranean fiction 845:Subterranean warfare 178:wet bulb temperature 91:Types of ventilation 840:Subterranean Toledo 835:Subterranean London 755:Caves of Maastricht 719:Tunnel construction 500:Burial vault (tomb) 119:Ventilation control 37:underground workers 954:Underground mining 795:Underground living 677:Underground hangar 366:books.google.co.in 245:. You can help by 197:. Long tunnels in 195:ventilation shafts 155:temperate climates 30: 22: 941: 940: 895:Earth shelters UK 866:Bill Gates' house 859:Earth shelters US 629:Military features 620:Ventilation shaft 488:Civilian features 389:978-0-471-11635-6 352:978-0-87335-264-2 307:978-0-9687006-1-7 263: 262: 104:ventilation raise 43:gases (typically 966: 959:Mine ventilation 902:Underhill, Holme 810:Mine exploration 672:Underground base 667:Scallywag bunker 636:Air raid shelter 615:Smuggling tunnel 580:Underground city 520:Dugout (shelter) 457:Natural features 442: 435: 428: 419: 418: 412: 411: 401: 393: 375: 369: 363: 357: 356: 338: 332: 329: 323: 322: 320: 319: 310:. Archived from 283: 258: 255: 237: 230: 204:contaminated air 142:mining engineers 76:, blasting with 974: 973: 969: 968: 967: 965: 964: 963: 944: 943: 942: 937: 933:Lightning Ridge 916: 890: 854: 738: 699: 686: 656:Fallout shelter 624: 483: 452: 446: 416: 415: 395: 394: 390: 376: 372: 364: 360: 353: 339: 335: 330: 326: 317: 315: 308: 284: 273: 268: 259: 253: 250: 243:needs expansion 212:hazardous gases 187: 151: 130: 121: 93: 66: 55: 48: 12: 11: 5: 972: 962: 961: 956: 939: 938: 936: 935: 930: 924: 922: 918: 917: 915: 914: 909: 904: 898: 896: 892: 891: 889: 888: 883: 878: 873: 868: 862: 860: 856: 855: 853: 852: 847: 842: 837: 832: 827: 822: 817: 815:Mines of Paris 812: 807: 802: 797: 792: 790:Trench warfare 787: 785:Tunnel network 782: 780:Tunnel warfare 777: 772: 767: 762: 757: 752: 746: 744: 743:Related topics 740: 739: 737: 736: 731: 726: 721: 716: 711: 705: 703: 688: 687: 685: 684: 679: 674: 669: 664: 658: 653: 648: 643: 638: 632: 630: 626: 625: 623: 622: 617: 612: 607: 602: 597: 595:Secret passage 592: 587: 582: 577: 572: 567: 562: 557: 552: 547: 542: 537: 532: 527: 522: 517: 512: 507: 502: 497: 491: 489: 485: 484: 482: 481: 476: 471: 466: 460: 458: 454: 453: 445: 444: 437: 430: 422: 414: 413: 388: 370: 358: 351: 333: 324: 306: 270: 269: 267: 264: 261: 260: 254:September 2022 240: 238: 186: 183: 171:Nanisivik Mine 150: 147: 129: 126: 120: 117: 92: 89: 74:diesel engines 64: 53: 46: 9: 6: 4: 3: 2: 971: 960: 957: 955: 952: 951: 949: 934: 931: 929: 926: 925: 923: 919: 913: 910: 908: 905: 903: 900: 899: 897: 893: 887: 884: 882: 879: 877: 874: 872: 869: 867: 864: 863: 861: 857: 851: 848: 846: 843: 841: 838: 836: 833: 831: 828: 826: 823: 821: 818: 816: 813: 811: 808: 806: 803: 801: 798: 796: 793: 791: 788: 786: 783: 781: 778: 776: 773: 771: 768: 766: 763: 761: 760:Civil defense 758: 756: 753: 751: 748: 747: 745: 741: 735: 732: 730: 727: 725: 722: 720: 717: 715: 712: 710: 707: 706: 704: 702: 697: 693: 689: 683: 680: 678: 675: 673: 670: 668: 665: 662: 659: 657: 654: 652: 649: 647: 646:Blast shelter 644: 642: 639: 637: 634: 633: 631: 627: 621: 618: 616: 613: 611: 608: 606: 603: 601: 600:Semi-basement 598: 596: 593: 591: 588: 586: 583: 581: 578: 576: 575:Utility vault 573: 571: 568: 566: 563: 561: 560:Rock-cut tomb 558: 556: 555:Rapid transit 553: 551: 548: 546: 543: 541: 538: 536: 533: 531: 530:Earth shelter 528: 526: 523: 521: 518: 516: 513: 511: 508: 506: 503: 501: 498: 496: 493: 492: 490: 486: 480: 477: 475: 472: 470: 467: 465: 462: 461: 459: 455: 451: 443: 438: 436: 431: 429: 424: 423: 420: 409: 405: 399: 391: 385: 381: 374: 367: 362: 354: 348: 344: 337: 328: 314:on 2017-05-04 313: 309: 303: 299: 295: 291: 290: 282: 280: 278: 276: 271: 257: 248: 244: 241:This section 239: 236: 232: 231: 228: 226: 221: 217: 213: 209: 205: 200: 196: 192: 182: 179: 174: 172: 168: 164: 160: 156: 146: 143: 139: 135: 125: 116: 113: 112:Venturi tubes 109: 105: 101: 97: 88: 86: 81: 79: 75: 71: 67: 60: 56: 49: 42: 38: 34: 26: 18: 750:Cave dweller 723: 610:Storm cellar 379: 373: 361: 342: 336: 327: 316:. Retrieved 312:the original 288: 251: 247:adding to it 242: 188: 175: 152: 131: 122: 95: 94: 82: 32: 31: 928:Coober Pedy 820:Mole people 765:Coober Pedy 682:Spider hole 565:Root cellar 450:subterranea 208:temperature 199:underground 167:Raglan Mine 128:Regulations 85:electricity 948:Categories 318:2008-10-21 266:References 214:, such as 163:permafrost 78:explosives 696:quarrying 590:Wine cave 510:Catacombs 398:cite book 298:North Bay 193:may have 651:Casemate 605:Stepwell 545:Hypogeum 535:Erdstall 525:Dry well 505:Borehole 495:Basement 479:Sinkhole 912:Malator 830:Sapping 550:Manhole 515:Dungeon 216:methane 191:tunnels 185:Tunnels 149:Heating 59:methane 41:noxious 692:Mining 663:(silo) 641:Bunker 570:Tunnel 474:Grotto 469:Cenote 386:  349:  304:  220:carbon 159:Arctic 698:, and 540:Fogou 294:Tempe 189:Long 100:shaft 585:Well 464:Cave 408:link 404:link 384:ISBN 347:ISBN 302:ISBN 218:and 176:The 169:and 108:adit 68:and 249:. 153:In 136:or 106:or 950:: 694:, 400:}} 396:{{ 292:. 274:^ 102:, 70:CO 63:CO 61:, 57:, 52:SO 50:, 45:NO 441:e 434:t 427:v 410:) 392:. 355:. 321:. 296:/ 256:) 252:( 65:2 54:2 47:x

Index



underground workers
noxious
NOx
SO2
methane
CO2
CO
diesel engines
explosives
electricity
shaft
ventilation raise
adit
Venturi tubes
cubic feet per minute
cubic meters per second
mining engineers
temperate climates
Arctic
permafrost
Raglan Mine
Nanisivik Mine
wet bulb temperature
tunnels
ventilation shafts
underground
contaminated air
temperature

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