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Project | Specific ations |
Depth of blinds | 100mm,200mm |
Framework material | Aluminum plate 2.0mm |
Leaf material | Aluminum profile 6063-T6, thickness 1.5mm |
Leaf form | vertical |
Blade angle | 90° |
Sand and dust filtration | Bottom sand guide groove+filter |
Conventional specifications | 180mm,W455~2255mm,H600~1800mm |
Ventilation rate | 35%~45% |
surface treatment | Polyester powder coating, Fluorocarbon paint spraying, Stainless steel, Aluminum alloy |
Paint thickness | 50um |
Weight | 15kg/m2,25kg/m2 |
Table 1 NCC Sandproof Louver Sand Trap Rate (Proportion) and Pressure Loss Table | |||||
No. | Free Area Velocity(m/s) | Total weight of sand injected(Kg) | Block the weight of sand(Kg) | Sand control rate(%) | Loss of pressurel(Pa) |
1 | 0.5 | 1 | 0.95 | 95 | 8 |
2 | 1.5 | 1 | 0.88 | 88.0 | 15 |
3 | 4.0 | 1 | 0.56 | 56.0 | 85 |
4 | 6.0 | 2 | 0.85 | 29.0 | 110 |
5 | 8.5 | 2 | 0.28 | 14.0 | 210 |
Table 2 Composition Table of Experimental Sand Particles (Proportion) | |
Gradesize(μm) | Mass(%) |
>699 | 5 |
423 to 699 | 30 |
353 to 422 | 120 |
251 to 352 | 300 |
211 to 250 | 200 |
152 to 210 | 270 |
104 to 151 | 60 |
76 to 103 | 10 |
<76 | 5 |








