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
12-01-2013
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
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.
| DevelopmentNote |
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)
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| DocumentType |
Standard
|
| PublisherName |
Belgian Standards
|
| Status |
Current
|
| Supersedes |
|
| Standards | Relationship |
| NS EN 12952-9 : 1ED 2003 | Identical |
| I.S. EN 12952-9:2002 | Identical |
| UNE-EN 12952-9:2003 | Identical |
| ONORM EN 12952-9 : 2003 | Identical |
| DIN EN 12952-9:2003-04 | Identical |
| EN 12952-9:2002 | Identical |
| UNI EN 12952-9 : 2005 | Identical |
| BS EN 12952-9:2002 | Identical |
| NF EN 12952-9 : 2003 | Identical |
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