Abrasive Blasting and preventive measures.pptx

presentation on abrasive blasting.materials used for abrasive blasting.

1. Abrasive Blasting Badar ur Rehman 1 Environment Friend Training Center

2. Course Objectives At the end of this course, you will be able to Describe The hazards and control measures of Abrasive Blasting Permit requirements The correct methodology and site safety precautions Personal Protective equipment while performing abrasive blasting including all those working nearby 2 Environment Friend Training Center

3. Course Contents Below are the main course contents Introduction to abrasive blasting Permit Requirements Hazards and Controls of abrasive blasting Proper way to perform the abrasive blasting PPE requirements 3 Environment Friend Training Center

4. Introduction Abrasive blasting is an activity in which we use pressurized air or water to propel abrasive media against a surface to remove coating, corrosion, or contamination. It is also known as sand blasting, grit blasting, or media blasting. 4 Environment Friend Training Center

5. Uses of Abrasive Blasting Make a rough surface smooth. Make a smooth surface rough. Shape a surface. Remove surface contaminants or material, like paint, rust, or residue. Clean or prepare a surface. Finish a surface. 5 Environment Friend Training Center

6. Types of Abrasive Media Type of blast media you use is dependent on the effect. Blasting media come in a wide variety of density, hardness, shape, and particle size. It is important to match the right type of abrasive media to both the job at hand, and the method of delivery. The usual blast media used in industry is Garnet Sand Steel grits Copper Slag Glass beads (bead blasting) 6 Environment Friend Training Center

7. How Abrasive Blasting Works There are typically three parts to an abrasive blast system: Abrasive container, or blasting pot Propelling device or mechanism Blasting nozzle 7 Environment Friend Training Center

8. Permit Requirements The process involves friction at high velocities, which generates the static charge and heat that can cause fire and explosion in extreme atmospheres. Hot Work Permit is required Other supplementary permits might also be required i.e. Confined Space entry permit 8 Environment Friend Training Center

9. Hazards Below are the main hazards High level of dust cloud High noise levels Health hazards from silica sand Poor housekeeping. Low skilled workforce. Chemical hazards to health or skin 9 Environment Friend Training Center

10. Controls Below are the main Controls Hot work permit in restricted areas. Operators to be tested and certified by: Certified coatings inspector (level 2). Wear PPE including hearing protection. Good Housekeeping. Use of Silica sand is prohibited. SDS for the material used 10 Environment Friend Training Center

11. Abrasive Blasting – Precautions Below mentioned precautions shall be followed while performing the activity Barricade the area / Enclosed the area Prevent the unauthorized entry Ventilate the area if enclosed Do not use compressed air to clean the area / use wet methods instead Avoid blasting in windy conditions Scheduling the activity 11 Environment Friend Training Center

12. Abrasive Blasting – Precautions Cont. Eating , drinking or smoking is prohibited Washing & changing facility to be provided Health surveillance Respiratory protective equipment is required Completely covered body parts (wear coveralls) Hoses must be secured (use of whiplash arrestor ) Safety signages 12 Environment Friend Training Center

13. Personal Protective Equipment Hearing Protection Eye & Face Protection Leather gloves for hand Protection Coverall for body protection Safety Shoes (high cut /ankle) Supplied Air Breathing Apparatus (if required) 13 Environment Friend Training Center

14. Summary In this course we have discussed the Abrasive blasting and its uses Different material of abrasive blasting Permit requirement, hazards and controls Proper precautions to take while performing abrasive blasting And the correct use of PPE 14 Environment Friend Training Center

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