Equipment Description:
I. Workflow
1. Exhaust Gas Capture: A hood collects exhaust gas and pipes it to
a treatment system.
2. Primary Purification: A dry filter intercepts particulate
matter, while a condenser cools the air (for high-temperature
operation).
3. Oxidative Decomposition: Catalytic Combustion: A catalyst
decomposes organic matter at high temperatures.
Photocatalysis/Plasma: Ultraviolet light or a high-voltage electric
field oxidizes and degrades pollutants.
4. Standardized Emissions: Purified gas is monitored and discharged
through a chimney after compliance with standards.
II. Technical Parameters
| Parameters | Specifications |
| Air volume | 2000-50,000 m³/h (customizable) |
| Applicable exhaust gas type | VOCs, hydrogen cyanide, hydrogen sulfide, benzene series, organic
acids, etc. |
| Operating temperature | Catalytic combustion: 250-400°C; photocatalytic combustion: room
temperature |
| Emission concentration | VOCs ≤ 50 mg/m³, cyanide ≤ 0.5 mg/m³ |
III. Equipment Advantages
High-Efficiency Purification: Catalytic combustion achieves a
purification rate of ≥95% for high-concentration VOCs, while
photocatalysis is suitable for low-concentration, complex exhaust
gases.
Energy-Efficient Design: The catalytic combustion heat recovery
system reduces energy consumption by over 30%.
Corrosion Resistance: Fiberglass and stainless steel materials
withstand acidic, alkaline, and high-temperature environments.
Intelligent Control: Integrated online monitoring and automatic
adjustment functions reduce manual intervention.
IV. Operation and Maintenance Key Points
Daily Maintenance: Clean carbon deposits on the catalyst surface
quarterly and replace expired catalysts.
Monthly check the UV lamp brightness; replace lamps if they
decrease by more than 30%.
Troubleshooting: Reduced purification efficiency: Check catalyst
activity, UV intensity, or plasma electric field stability.
Blower Abnormality: Check for impeller corrosion or dust
accumulation and calibrate the dynamic balance.
V. Application Scenarios
Electroplating Oxidation Tanks: Treat highly toxic exhaust gases
such as cyanide and chromic acid mist.
Chemical Reactors: Degrade benzene and organic solvent volatiles.
Spray Paint Shops: Purify VOCs and paint mist particles.
Main structures and components:
I. Exhaust Gas Collection System
1. Gas Collection Hood
Use corrosion-resistant materials (such as 316L stainless steel or
fiberglass) to cover the pollution source. A closed or side-suction
design improves exhaust gas collection efficiency. The collection
air velocity is typically 0.5-1.5 m/s.
For large-scale or open pollution sources, a multi-point gas
collection hood system can be configured in parallel.
2. Exhaust Duct
Use fiberglass or PVC materials, with a diameter of 150-500 mm.
Avoid right-angle bends to reduce air resistance. The duct interior
should be smooth to prevent dust adhesion.
High-temperature exhaust ducts should be insulated (such as
aluminum silicate fiber) to prevent heat loss and affect subsequent
treatment efficiency.
II. Pretreatment Unit
1. Dry Filter
A pre-filter (pore size ≤ 2 mm) intercepts large dust particles and
liquid droplets, protecting the downstream oxidation device.
In some scenarios, a cyclone dust collector can be added to
increase dust filtration efficiency to ≥ 90%. 2. Condenser
(Optional)
For high-humidity or high-temperature exhaust gases (≤150°C), heat
exchange is used to cool the exhaust gas to 40-60°C, reducing its
volume and recovering some organic matter.
III. Oxidation Purification Unit
1. Catalytic Combustion Unit (RCO)
Catalyst Layer: Precious metals (platinum, palladium) or metal
oxide catalysts oxidize and decompose VOCs, aldehydes, and other
organic matter. The reaction temperature is 250-400°C, with a
purification efficiency of ≥95%.
Heat Exchange System: Ceramic regenerators or multi-tube heat
exchangers recover combustion heat, achieving a heat recovery rate
of ≥70%, reducing operating energy consumption. 2. Photocatalytic
Oxidation Device
UV Photolysis Module: Emits 185-254nm ultraviolet light to activate
a titanium dioxide (TiO₂) coating, breaking down organic matter
into CO₂ and H₂O. Suitable for low-concentration, complex exhaust
gases.
Reaction Chamber: Made of corrosion-resistant quartz glass or 316L
stainless steel, with a light transmittance ≥80%.
3. Plasma Processor
This device uses high-voltage corona discharge to generate
high-energy electrons and free radicals, degrading odorous gases
(such as hydrogen sulfide) and difficult-to-degrade organic matter
with a treatment efficiency ≥85%.
The electrode module is made of titanium alloy or ceramic and
supports modular replacement to adapt to different operating
conditions.
IV. Power and Monitoring System
1. High-Temperature-Resistant Fan
Made of fiberglass or alloy, it offers an air volume of 2000-50,000
m³/h and a pressure of 1200-2500 Pa, suitable for high-temperature
and corrosive exhaust gases.
Equipped with a frequency converter to adjust the air volume to
match equipment load fluctuations. 2. Monitoring and Control System
An integrated VOCs online detector and temperature sensor monitor
emission concentrations and equipment operating status in real
time, automatically issuing alarms and adjusting treatment
parameters when standards are exceeded.
The chimney height must be ≥ 15 meters, complying with the
"Comprehensive Emission Standard for Air Pollutants"
(GB16297-1996).
Features:
1.High cost performance: Based on the customer's product
positioning and development strategy, and with economic
affordability as the foundation, we achieve the best cost
performance.
2.The advanced and meticulous design concept of the equipment,
along with the highly automated industrial equipment, showcases the
image of a modern and advanced enterprise.
3. It has high adaptability, meeting the current production
requirements and reserving room for development, taking into
account the needs of increased production and improved quality in
the future.
4.Quality compliance strictly adheres to the ISO900 quality
management system, with every minute detail of the entire equipment
installation being strictly controlled.
