DL/T 5187.2-2004 in English

1 Scope
This Part specifies the fundamental principles, contents and requirements of the design for dust prevention and control of coal handling system in fossil fuel power plant.
This Part is applicable to dust prevention and control design of new, extended or rebuilt coal-fired power plant equipped with unit of 50MW~600MW unit capacity. It may apply the dust prevention and control design for coal-fired power plant with under 50MW unit capacity, as well as for new or extended coal-fired power plant with a unit capacity of over 600MW by reference.
2 Normative References
The following documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated reference, subsequent amendments to, or revisions of, any of these publications do not apply. Parties to agreements based on this Part are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. For undated references, the latest edition of the normative document referred to applies.

Contents
1 Scope
2 Normative References
3 Terms
4 General Provisions
5 Dust Control
5.1 Coal Tempering
5.2 Water-spray Dust-control of Coal Dump
5.3 Dust Control by Sealing
5.4 Coal Sprinkling Prevention
5.5 Dust Suppression at Unloading Point
5.6 Dust Control for Pulverizing Device on Belt Conveyer Storey of Bunker Bay
6 Dust Separation
6.1 Selection of Dust Separation Mode
6.2 Determination of Air Volume for Dust Separation
6.3 Selection of Dust Separator
6.4 Design of Dust Removing System
6.5 Spray Dust Suppression
6.6 Heating Ventilation Design
7 Cleaning of Dust Deposition
7.1 General Requirements
7.2 Water Cleaning
7.3 Vacuum Cleaning
8 Water Supply and Drainage
8.1 Water Supply
8.2 Pipe Design
8.3 Drainage
8.4 Coal Slime Water Treatment
9 Dust-control and Waterproofing for Building
9.1 Dust Control and Waterproofing for Wall and Floor (Ground) Surface in Coal Handling System
9.2 Dust Control and Waterproofing for Belt Conveyer Storey in Bunker Bay
10 Dust Control and Damp Proofing for Electrics
Appendix A (Informative) Pumping Air Volume for Mechanical Dust Removal on Coal Handling Conveyer Transfer Point
Appendix B (Informative) Pumping Air Volume for Mechanical Dust Removal at Coal Hopper
Appendix C (Informative) Water Consumption Indexes of Wet Dust Collectors
Appendix D (Informative) Filtering Air Speeds of Fabric Collectors
Appendix E (Informative) Compaction Air Consumptions of Impulse Blowing Bag Dust Collectors