• NBN EN 12952-9 : 2003

    Current The latest, up-to-date edition.

    WATER-TUBE BOILERS AND AUXILIARY INSTALLATIONS - PART 9: REQUIREMENTS FOR FIRING SYSTEMS FOR PULVERIZED SOLID FUELS FOR THE BOILER

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    Language(s): 

    Published date:  12-01-2013

    Publisher:  Belgian Standards

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    Table of Contents - (Show below) - (Hide below)

    Foreword
    1 Scope
       1.1 Firing systems
       1.2 Fuels
       1.3 Operation
       1.4 Boundary of pulverizing system
    2 Normative references
    3 Terms and definitions
    4 Fuel storage facilities with conveying plant
       4.1 General
       4.2 Conveying plant
       4.3 Coal bunkers
    5 Pulverizing system and pulverized fuel system
       5.1 General
       5.2 Coal Feeders
       5.3 Mills
       5.4 Pulverized fuel bins
       5.5 Pulverized fuel supply pipes and shutoff devices
    6 Explosion prevention measures for pulverizing systems
       and pulverized fuel systems
       6.1 General
       6.2 Plants operated without inert gas protection
       6.3 Plants operated with inert gas protection
    7 Equipment for air supply and flue gas discharge
       7.1 Air supply
       7.2 Air/fuel ratio
       7.3 Flue gas discharge
    8 Firing system
       8.1 General
       8.2 Burners for pulverized fuel
       8.3 Flue gas recirculation
       8.4 Modification of the firing system setting
       8.5 Monitoring and control
       8.6 Electrical equipment
       8.7 Safety precautions
    9 Ash extraction plant
    10 Operation and maintenance
       10.1 General
       10.2 Operating manual and instructions
    Annex A (informative) Operational requirements for permanently
              supervised firing system for pulverized fuel
    Annex ZA (informative) Clauses of this European Standard
              addressing essential requirements or other provisions
              of the Pressure Equipment Directive
    Bibliography

    Abstract - (Show below) - (Hide below)

    Relates to pulverized fuel firing systems of steam boilers and hot water generators and commences at the filling equipment for the boiler bunkers or for the pulverized fuel storage system and ends at the ash extraction plant.

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    Development Note Supersedes NBN 731, NBN 732, NBN 733, NBN 734, NBN 735, NBN 736, NBN 737, NBN 738, NBN 739, NBN 740, NBN 741, NBN 743, NBN I 01 003, NBN I 01 004, NBN I 01 005, NBN I 01 022 and NBN I 01 002. (04/2011)
    Document Type Standard
    Publisher Belgian Standards
    Status Current
    Supersedes
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