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Processing Specific Induction. Processing Induction - Content Plant Overview Area Access Communications The Process Chemicals & Reagents Safety Systems.

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Presentation on theme: "Processing Specific Induction. Processing Induction - Content Plant Overview Area Access Communications The Process Chemicals & Reagents Safety Systems."— Presentation transcript:

1 Processing Specific Induction

2 Processing Induction - Content Plant Overview Area Access Communications The Process Chemicals & Reagents Safety Systems and General Safety Processing Hazards House Keeping

3 Plant Overview Gold Operation –600 tpa –Underground ore source –Coarse gold within quartz Process is a combination of: –Crushing and Grinding –Gravity Concentration –Flotation –Leaching –Electrowinning –Smelting

4 Area Access –Crushing –HPGR, Grinding & Gravity –Flotation & Thickening –CIL & Elution –ILR & Gold Room –Reagents –Metallurgical Laboratory –Tailings Storage Facilities This induction allows you access to the following areas of the process plant

5 Restricted Access Areas –ROM Pad  Front End Loader Operating  Requires reflective clothing and notification of Loader driver –CIL & Elution  HCN Generation  Requires Monotox and Mask Induction –ILR & Gold Room  Requires Metallurgy Managers’ designated person’s Authorisation for access The following areas of the plant have restricted access for security and safety purposes

6 Communications In an emergency dial:222 (internal) –State: Your Name Your Location Location of Emergency Details of Emergency Await further instructions Security extension: 400 or 401 Surface UHF Radio:Ch (Yet to be determined)

7 The Process – Crushing & HPGR HPGR Ore Storage Primary and Secondary Crushing Screening at 25 mm Wet Screening at 4 mm Gravity and Grinding

8 Gravity, Grinding & Flotation Fines TSF Sand Re-use Sands TSF Gravity Gold Circuit Gravity Concentrate Classification and Ball Mill Concentrate Au and Pyrite Flotation Flotation Tailings Thickener Flotation Feed Thickener Fine Ore

9 Flotation Concentrate Leaching Detoxified TSF Flotation Concentrate Flotation Concentrate Leaching Concentrate Thickener Tails Screen Barren Carbon Cyanide Detoxification Loaded Carbon Screen Loaded Carbon

10 Gold Recovery Barren Carbon Carbon Elution Circuit Gold Bullion Furnace Loaded Carbon Intensive Leach Reactor Gravity Concentrate Gravity Concentrate Tables Electrowinning

11 Reagents Numerous hazardous reagents and materials are used in the processing plant. They are safe PROVIDING correct procedures and PPE requirements are followed. Material Safety Data Sheets (MSDS), are available on all these substances from –Control room –Processing Office –Reagents storage area –Electronically (intranet) on the Chem Alert system If you are not sure about a particular chemical …ASK!

12 Reagents Regents are delivered in a variety of forms and containers. –Delivered directly into storage tanks –Mixed with water in dedicated mixing facilities. Some include –Sodium Cyanide –Copper Sulphate –SMBS –Sodium Hydroxide –Hydrochloric Acid Copper Sulphate

13 Reagents - Cyanide Storage Area Sodium Cyanide Key Hazards Solid inhalation & ingestion (incl. dust) Liquid absorption & ingestion HCN gas inhalation Immediate 1 st aid response Thoroughly wash victim Oxygen administration Seek urgent medical attention Remember, if you find a possible victim of cyanide poisoning, DO NOT BECOME A VICTIM YOURSELF! Don appropriate PPE before rendering assistance.

14 Job Safety Analysis A Job Safety Analysis (JSA) must be carried out –Before any new work is carried out –When a change is made to an existing established procedure Purpose: –Review the task and the hazards associated with carrying out the task –Determine a practical method of eliminating hazards or reducing them to a manageable risk

15 Permit to Work Permit to Work procedure ensures there is method for conducting work Designed to assist personnel to adhere to safe work practices Work permit procedure ensures that: –Associated risks are minimised through: JSA’s Associated permits (hot work, working at heights, confined space etc) Correct isolation of equipment –No work is undertaken without proper instruction and authorisation –Operational integrity of the plant is maintained Ensures all stakeholder receive appropriate notification

16 Equipment Isolation A comprehensive isolation and lockout procedure has been developed for the site All personnel are required to use the system to ensure the maintenance of a safe work place and that all work is carried out in safe conditions Personnel will receive isolation and lockout training and be issued with locks to be used in conjunction with personal danger tags

17 Personal Protective Equipment Site Standard PPE –Hard Hat –Safety Glasses –Safety Boots –Long trousers and long sleeved shirt (Hi-Vis) CIL, Detox & Elution  Monotox must be carried Other PPE is task / area dependent –Hearing protection –Gloves (PVC & latex) –Disposable overalls –Face shield –Respirator

18 General Safety Safety Showers –Safety showers and eyewash stations are located at various points around the plant. –Identified by the green and white signs and a green light above them to help identify their locations in an emergency –Always check the operation in your work area before commencing work

19 General Health & Hygiene Personal Hygiene –Wash hands before eating, drinking or smoking –Use designated crib rooms for eating and drinking Drinking Water –Only drink from water dispensers and from crib room facilities where indicated –Can be very hot in summer months  drink plenty of water

20 Processing Hazards Start Up Sirens –Start up sirens may sound at any given time without warning or notice. –Sirens indicate that a specific piece of equipment is about to start –Sirens are mainly used for conveyor and mill starts Automatic Start Pumps –All areas in the processing plant have numerous pumps and drives, which may start or stop automatically without a siren. –Do not place any part of your person near these drives unless they have been correctly isolated.

21 Processing Hazards Thickeners –A thickener is an open top vessel. Do not wear a hard hat when walking/working on top of thickeners Always leave your hard hat at the entrance to the thickener bridge, in the appropriate hard hat holder. This is to prevent blockages of the underflow lines from falling helmets. –Tools Should be handled and stored in a manner to prevent accidental loss into the thickener. Conveyor Belts –Conveyor belts are used within the ore crushing and grinding areas –These belts can start automatically but are preceded by a warning start up siren. –Never place any part of your body near a moving or stationary conveyor unless the belt has been correctly isolated

22 Processing Hazards Magnets –There are 2 magnets: over the crusher discharge conveyor and over the fine ore bin discharge feeder. –Care should be taken when working in this area as the magnet produces strong magnetic fields. Concern to people with:heart pacemakers and artificial limbs. Can also damage electronic equipment (incl. laptops and watches) Radiation –There are 7 radiation sources used in the processing plant in density gauges. –Identified by yellow warning signs. –Isolation of the source by an authorised Radiation Safety Officer is required if you are working in close proximity to the devices

23 Processing Hazards Hot Surfaces –Some pipe work and equipment within the processing plant operates at high temperatures. –Caution should be taken when working in or around operating equipment Hot surfaces can be found on the: Carbon regeneration system Carbon elution system Gold room furnace and calcine oven Compressed air and blower outlet piping

24 Processing Hazards Pressurised Lines –Pipe work in the plant operates under pressure –Ensure lines are depressurised prior to commencing any work. –Dissipated pressure from water and compressed air lines before disconnection –Safety clips must be used on hoses with Minsup or quick disconnect couplings. Dust –Dust may be present in the crushing, reclaim and grinding areas. –Elimination of dust losses will not be possible in all circumstances. Dust masks are to be worn when working in areas where dust is being generated.

25 Processing Hazards Gases: LPG –Predominantly used in the gold room for heating purposes Also used in the elution and carbon regen areas –Exercise care when carrying out maintenance work in this area –Report any signs of gas leaks immediately to your supervisor. Hydrogen Cyanide –HCN may be present on top of the CIL and Detoxification tanks. –Training in the use of HCN detectors will be required to access

26 Noise Our neighbours are very close – Bound by prescribed noise limits Daytime 7 am – 6 pm 46 or 47 dB (A) Evening 6 pm – 10 pm 42 dB (A) Night 10 pm – 7 am 39 dB (A) Be aware of the potential noise from tasks and equipment Carry out noisier activities in “Daytime” wherever possible Evening is also Saturdays from 1pm and all day Sunday and public holidays.

27 House Keeping Be proud of your work place and keep it clean and tidy. –If you make a mess, clean it up –Don’t leave rubbish lying about the work place –Keep areas hosed clean wherever possible –Ensure all equipment and material are stored in correct locations –Keep Crib rooms and control rooms clean and tidy


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