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Klondex Midas Operations, Inc. Klondex Midas Operations, Inc.

Klondex Midas Operations, Inc. - PowerPoint Presentation

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Uploaded On 2018-10-24

Klondex Midas Operations, Inc. - PPT Presentation

Midas Mine Elko County NV April 28 2014 Machinery Overview Underground gold mine 2014 approximately 258021 h worked and 159 employees 53yearold miner Victim was drilling with a jackleg drill when his clothing became entangled in the drill steel ID: 695124

drilling drill water work drill drilling work water steel hoses hole air hazards drills rock control safe midas check

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Slide1

Klondex Midas Operations, Inc.Midas MineElko County, NV

April 28, 2014

MachinerySlide2

Overview

Underground gold mine (2014: approximately 258,021

h worked and 159 employees)53-year-old minerVictim was drilling with a jackleg drill when his clothing became entangled in the drill steelVictim was working alone and accident happened between 10:30h and 11:15 a.m.. Shift started at 6:00 a.m.2Slide3

3Slide4

4

Newmont Midas Operations

Started at 08/06/2002Subsidiary of Newmont Mining CorporationKlondex Midas Operations, Inc.Started at 02/11/2014Newmont USA LimitedSubsidiary of Newmont Mining Corporation04/28/2014 – Accident dateSlide5

5

Equipment

Midwestern Jackleg Drill Model RNS 83FSlide6

Equipment

Jackleg drilling

6Slide7

Findings

Victim had 32 years of mining experience, with 11 at this mine. All training records were up to date

Victim was drilling the tenth hole on a 8 feet wide 12 feet high stope. Was found approximately 15 feet away from the face with the drill steel still turningEquipment parts, tools and large rocks were found scattered around the place7Slide8

Root Causes

Management failed to ensure that procedures were established to provide that the victim’s workplace was kept clean and orderly. The floor of the stope was strewn with large rocks, air and water hoses, drill steels, and an oil container, exposing

the victim to slip, trip, and fall hazards as he moved about while drilling. 8Slide9

MSHA’s Best Practices

Do not wear loose fitting clothing when working around drilling machineryStop

the drill rotation when performing tasks near the rotating steel Provide safe routing of hoses and cables so they are not close to the rotation of the drillDo not assign a person to work alone in areas where hazardous conditions exist that would endanger his or her safetyKeep work areas clean and free of tripping hazardsConduct work place examinations before beginning any workDo not place yourself in a position that will expose you to hazards while performing a taskEnsure that persons are trained, including task-training, to understand the hazards associated with the work being performedEstablish and discuss safe work procedures before beginning work. Identify and control all hazards associated with the work to be performed and use methods to properly protect persons 9Slide10

10Slide11

Parts HeadQuarters Inc. Best Practices

NEVER “ride the leg” or “hang on the drill control handle” when drilling. Skilled drillers learn

the pusher leg does the work. Minor adjustment to the feed control optimizes drilling speed in the holeNEVER retract the steel from the drilled hole at full throttle. The piston inside the drill is meant to hammer under full load pressure from the pusher leg. Hammering without pressure damages partsNEVER strike the drill body with hard tools. A dent in the body of the drill will cause damage to the inside surface of the drill cylinder where tolerances are very close with the piston and cause scoringNEVER try to free a drill by manually turning the drill when locked on a stuck drill rod in the hole. The pawls can be broken when the drill is turned in the opposite direction to normal operating rotationNEVER open up the drill underground to attempt major repairs. The environment underground is usually wet and dirty and you may do more damage than good. Send the drill to the repair shopNEVER drag a drill along the ground as the exhaust ports, open end of the muffler, or other openings will scoop up broken rock or dirty water which will cause malfunction of the drill and usually failure11Slide12

ALWAYS wear all personal protective equipment when working with rock drills. A miner must wear a suitable hard hat with ear muffs, safety glasses, double ribbed hard toe boots, and suitable gloves

PHQ recommends the use of ear plugs as well as ear muffs to minimize the harmful effects of the noise generated by rock drills. Rock drills have been measured to emit as much as 110 decibels of noise

ALWAYS blow any disconnected hoses before connecting to the lubricator or drill. Blowing the hoses removes any condensate water or debris in the hose. Flush the water hose just to be on the safe sideALWAYS be sure the drill is getting adequate lubrication. Check the line oiler at the beginning of every shift to be sure it is full. Check the exhaust is misting oil and that the drill shank is wetted by oilALWAYS keep the side rods at an equal tension and tightened over 90 ft lbs. Check the air connection nut and the water connection nut occasionally while drilling to be sure they have not vibrated looseALWAYS keep the drill aligned to the drill rod in the center of the hole. Collar the hole with a four foot steel to be close to the face and more in control of the drill. Collaring with long steel is difficultALWAYS remove the drill to a safe distance from the holes to be blasted. If you disconnect the air and water hoses from the drill it is good practice to connect the air bend hose to the water bend hoseALWAYS store unused drills in an upright position out of the water and with all holes blocked with proper covers. Oily rags stuffed in the chuck and exhaust ports provide protection from airborne dust12Parts HeadQuarters Inc. Best Practices