DL/T 5763-2018 in English
VALIDGuide for construction technology for bag filter
- Issued on:2018-04-03
- Implemented on:2018-07-01
- File Format:PDF
- Delivery:Via email within 10 business days
$873.00
Introduction
Interpretation of the core content of the standard
This standard specifies the construction technical requirements for bag dust collectors in thermal power plants. It includes 8 major chapters and 2 appendices, focusing on key processes such as steel structure installation, filter bag construction, and cleaning systems.
Key Technology Comparison
| System Module | Allowance Deviation (mm) | Detection Method |
|---|---|---|
| Flower Board Installation | Hole Spacing ≤2, Levelness ≤5 | Theodolite + Oil Seepage Test |
| Steel Structure | Verticality ≤10, Diagonal ≤15 | Laser Distance Measurement + Level |
| Filter Bag Spacing | Vertical degree ≤10/1000L | Phosphor leak test |
Solutions to typical construction problems
Common defects in filter bag installation
Problem phenomenon:Filter bag seams are torn (incidence rate is about 12%)
Standard requirements:≥3 longitudinal seams, and the seam strength must reach the strength of the main material
Handling solution:Use a special sheath for protection during installation, and stagger the vertical ribs of the bag cage with the seams
Implementation suggestions
- Filter bag pre-coating should be completed within 48 hours before boiler ignition, and the amount of fly ash should be ≥3kg/m²
- The exhaust hole of the pulse valve must not be installed facing upwards to prevent rainwater from seeping in
- The concentricity deviation of the rotary injection device must be controlled within 1.5mm or less
Technology Evolution Analysis
Compared with the 2008 version of the standard, the 2018 version adds fluorescent powder leak detection and pre-coating process requirements, and the filter bag sewing standard is improved by 20%
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