Risk Assessment of Pneumatic Conveying Rig

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MSc MAINTENANCE MANAGEMENT

Ethics, Safety and Safety Management

Individual Assignment

MUHAMMAD ASIF
Matriculation no: S1140899
Date of Submission: 14 May 2012

CONTENTS

1. Executive summary........................................................................................................4 2. Pneumatic Conveying System........................................................................................5 2.1 Risk Assessment Process..........................................................................................6 2.1.1 HSE Statement to Risk Assessment.......................................................................7 2.2 Steps to Assess the Risk...........................................................................................7 2.3 Fire and Explosion Hazards in Pneumatic Rig......................................................8 2.4 Pneumatic Conveying System Hazards..................................................................9 2.5 Managing the Ignition Source..............................................................................11 2.6 Classifying Hazard Areas in Zones......................................................................12 2.7 Legislations Relevant to the Risk Assessment of Pneumatic conveying system..14 3. Maintenance..............................................................................................................15 3.1 Maintenance of the Plant.....................................................................................15 3.2 Advantages of the Preventive Maintenance.........................................................16 3.3 Safety Consideration during Maintenance Operation........................................17 3.4 Legislations Relevant to the Maintenance of the Plant......................................17 4. Conclusion................................................................................................................18 5. References.................................................................................................................19

LIST OF FIGURES
Figure1. Schematic of Pneumatic Conveying System...........................................................6 Figure2. Fire Triangle.............................................................................................................9 Figure3. Pressure Transducer.................................................................................................9 Figure4. Isolation Valve with Gauge.....................................................................................10

LIST OF TABLES
Table1. Simple Risk Level Estimator....................................................................................8 Table2. Maintenance Schedule..............................................................................................15

1. EXECUTIVE SUMMARY
The report summarizes the risk assessment and maintenance schedule of the pneumatic conveying rig. Risk assessment is carried for the fire and explosion hazards in the process and relevant legislations are also proposed. In the maintenance schedule the maintenance of the key parts of the plants are suggested for effective and more efficient running of the plant and the safety of the workers working in the plant is also considered furthermore the legislations relevant to the plant are also shown.

2. THE PNEUMATIC CONVEYING SYSTEM
This conveying system conveys high velocity substances incessantly where compressed air is readily available. The system is used for conveying Pharmaceutical powder pharmex at low density over a short medium distance. A pneumatic conveying system may transport solids up to approximately 50mm size and the powder or solid must be dry, with no more than 20% moisture. Since pneumatic systems are completely enclosed, product contamination, material loss and dust emission are reduced or eliminated. The basic system consists of an air supply...
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