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This system is constructed from high-grade stainless steel, ensuring excellent corrosion resistance, long service life, and stable performance under harsh operating conditions.
Based on the spontaneous combustion property of silane (SiH₄) upon contact with air, the system is designed to fully utilize this reaction. When silane-containing exhaust gas enters the combustion chamber, it mixes with air and ignites automatically, completely oxidizing and decomposing the hazardous components.
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The combustion products then pass through a packing layer, where the gas flow is evenly distributed and further cooled before entering the spray scrubbing section. In this chamber, the exhaust gas comes into full contact with a neutral circulating liquid, undergoing a chemical neutralization process that effectively removes residual impurities and soluble gases.
After scrubbing, the treated gas flows into a dehydration unit, where moisture is separated and removed to ensure a clean, dry exhaust. Finally, the purified gas is safely discharged into the atmosphere through a high-efficiency exhaust fan, completing a fully enclosed and automated process from combustion to purification.
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With its compact design, stable operation, and superior purification efficiency, this system not only removes silane and other combustible gases effectively but also significantly enhances safety, reliability, and environmental performance. It serves as an ideal exhaust treatment solution for solar cell manufacturing and semiconductor CVD processes.
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tainless steel silane combustion tower | Type number | CRS-1 | CRS-2 | CRS-3 | CRS-4 | CRS-5 | CRS-6 | CRS-7 | CRS-8 | CRS-9 | CRS-10 | CRS-Ⅱ-2 | CRS-Ⅱ-4 | CRS-Ⅲ-4 | CRS-Ⅳ-4 |
Treated air volume | ~200 | ~400 | ~600 | ~800 | ~1000 | ~1200 | ~1400 | ~1600 | ~1800 | ~2000 | ~3500 | ~7000 | ~10000 | ~15000 | |
Equipment resistance | 400 | ||||||||||||||
Silane removal rate | ≥99.99 | ||||||||||||||
Ammonia removal rate | ≥99.99 | ||||||||||||||
Compressed air volume | 400 | 600 | 1000 | 1500 | 2000 | ||||||||||
Nitrogen content | 200 | 300 | 500 | 800 | 1000 | ||||||||||
Select the air distributor | Type number | 3A | 3A | 3A | 3A | 3.5A/5.5A | 3.5A/5.5A | 3.5A/5.5A | 3.5A/5.5A | 3.5A/5.5A | 3.5A/5.5A | 4A | 4A | 6A | 6C |
Motor power | 1.5 | 1.5 | 1.5 | 1.5 | 3/2.2 | 3/2.2 | 3/2.2 | 3/2.2 | 3/2.2 | 3/2.2 | 5.5 | 5.5 | 4 | 7.5 | |
Motor speed | 2900 | 2900 / 1450 | 2900 | 2900 | 2900 | 1800 | |||||||||
Circulator pump | Type number | KP40-1 | KP40-2 | KD40-3 | KD50-3 | KD50-3 | KD50-3 | KD50-3 | KD50-3 | KD50-3 | KD50-3 | KD50-3 | KD50-3 | KD50-5 | KD65-5 |
Motor power | 0.75 | 1 | 2.2 | 2.2 | 2.2 | 2.2 | 2.2 | 2.2 | 2.2 | 2.2 | 2.2/0.75 | 2.2/0.75 | 3.75/0.75 | 3.75/0.75 | |
Motor speed | 2900 | ||||||||||||||
Power source | Electric voltage | AC380 | |||||||||||||
frequency | 50 | ||||||||||||||
Appearance and mounting dimensions | Tower diameter | 1200 | 1200 | 1200 | 1200 | 1400 | 1400 | 1400 | 1400 | 1400 | 1400 | 1400×1900 | 1400×2400 | 1400×2400 | 1400×2800 |
Exhaust diameter | 350 | 350 | 350 | 350 | 350 | 350 | 350 | 350 | 350 | 350 | 350 | 350×2 | 350×2 | 400×2 | |
Inlet diameter | 65×1 | 65×2 | 65×3 | 65×4 | 65×5 | 65×6 | 65×7 | 65×8 | 65×9 | 65×10 | 150×2 | 150×4 | 200×4 | 250×4 | |
Outlet pipe | 400 | 400 | 400 | 400 | 400 | 400 | 400 | 400 | 400 | 400 | 400 | 500 | 500 | 600 | |
Fresh air intake | 100×100 | 200×200 | |||||||||||||
derrick | 2100×2100 | 2400×2400 | |||||||||||||
Tower height | 2800 | ||||||||||||||
h1 | 500 | ||||||||||||||
h1 | 750 | ||||||||||||||
h3 | ≥400 | ||||||||||||||
L1 | 2800 | 2800 | 2800 | 2800 | 3000 | 3000 | 3000 | 3000 | 3000 | 3000 | 3500 | 3500 | 3500 | 3500 | |
L2 | 6000 | 6000 | 6000 | 6000 | 7000 | 7000 | 7000 | 7000 | 7000 | 7000 | 7000 | 7000 | 7000 | 7000 | |
L3 | 2800 | 2800 | 2800 | 2800 | 3000 | 3000 | 3000 | 3000 | 3000 | 3000 | 3500 | 3500 | 3500 | 3500 | |
L4 | 7000 | 7000 | 7000 | 7000 | 8000 | 8000 | 8000 | 8000 | 8000 | 8000 | 9000 | 9000 | 9000 | 9000 | |
● Stainless steel silane combustion purification tower must ensure negative pressure of about 200Pa.
● An emergency combustion cylinder must be installed behind the vacuum pump of PECVD equipment (see the equipment flow chart).
● Stainless steel silane combustion purification tower must adopt a new process, double fan air extraction, one use one standby.
● The electric regulating valve of the fan inlet must be linked with the fan.
● A disc valve must be installed before the air inlet of the fan to control the negative pressure in the silane combustion purification device.
● Silane combustion purification device fresh air supply outlet must be equipped with a regulating valve.
● 1 ~ 1.5 meters outside the inlet pipe interface must be connected by a dismountable port to prevent the removal of debris from the combustion box.