Equipment Description:
I. Key Equipment Structure and Operating Principle
1. Spray Tower (Patent CN222788898U)
Tower Structure: A built-in filter intercepts large particles, and
a waste liquid treatment chamber collects waste liquid after the
neutralization reaction.
Spray System: Multi-stage atomizing nozzles evenly spray the
absorbent liquid, while countercurrent contact with the exhaust gas
achieves efficient purification.
Demisting Device: A wire mesh demister reduces exhaust gas humidity
to ≤50 mg/m³.
2. RTO Equipment
Three-tower Regenerator: Ceramic regenerators alternately preheat
the exhaust gas (to over 800°C) and recover the heat, reducing
energy consumption by over 30%.
Oxidation Chamber: High-temperature decomposition of VOCs with a
residence time of ≥1 second ensures complete mineralization of
organic matter.
3. Electrostatic Fume Removal Equipment
High-voltage electrostatic field: Corona discharge charges
particulate matter, and dust collecting plates capture the dust,
achieving a purification efficiency of ≥99%.
Modular Design: The plates can be quickly disassembled and cleaned,
reducing maintenance costs by 40%.
II. Technical parameters and performance
| Equipment Type | Treatment Efficiency | Applicable Concentrations | Operating Temperature |
| Activated carbon adsorption tower | 85-95% | Low VOCs (<500ppm) | Normal |
| RTO thermal storage combustion unit | ≥99% | High VOCs (>1000ppm) | 760-850°C |
| Electrostatic precipitator | ≥99% | Dust (1-1000mg/m³) | ≤300°C |
| Spray tower | 70-90% | Acidic Gases (pH 1-12) | Normal to 150°C |
III. Application Scenarios and Adaptation Solutions
Automotive paint shops: RTO treatment of high-concentration organic
waste gas (such as benzene series), with a purification rate of
≥99%;
Electroplating/pickling lines: Spray tower + activated carbon
adsorption in series to neutralize acidic gases and adsorb cyanide;
Petrochemical industry: Zeolite rotor concentration + RCO catalytic
combustion to treat high-volume, low-concentration VOCs;
Food processing plants: Biofilters to degrade fermentation waste
gas (such as hydrogen sulfide and ammonia).
IV. Equipment Selection and Operation and Maintenance Key Points
1. Selection Basis
Waste gas composition (particulate matter, VOCs, acidic gases) and
concentration;
Emission standards (such as the "Comprehensive Emission Standard
for Air Pollutants" GB 16297-1996);
Energy consumption and operation and maintenance costs (RTO/RCO are
suitable for continuous production, while activated carbon
adsorption is suitable for intermittent operation). 2. Operation
and Maintenance Management
Activated Carbon Replacement: Check the adsorption saturation rate
every 3-6 months and replace any depleted carbon layers.
RTO Ceramic Body Cleaning: Remove carbon deposits on the thermal
storage body annually to maintain thermal efficiency.
Spray Liquid Monitoring: Real-time pH control (e.g., NaOH solution
pH ≥ 10).
Main structures and components:
I. Exhaust Gas Collection System
1. Gas Collection Hood
Adopts a closed or side-suction design, covering the pollution
source (such as a reactor or oxidation tank). Collection efficiency
is related to wind speed (0.5-1.5 m/s) and material (316L stainless
steel, fiberglass).
Multiple-point gas collection hoods in parallel are suitable for
open pollution sources.
2. Exhaust Ducts
Made of fiberglass/PVC, with a diameter of 150-500 mm. The layout
should minimize right-angle bends to reduce air resistance.
High-temperature ducts should be insulated with aluminum silicate
fiber to prevent heat loss.
II. Pretreatment Unit
1. Dry Filter
Metal filter (pore size ≤ 2 mm) intercepts large dust particles and
droplets, protecting downstream equipment.
Can be combined with a cyclone dust collector to increase dust
filtration efficiency to ≥ 90%.
2. Condenser (Optional)
For high-temperature exhaust gases (≤ 150°C), heat exchange is used
to cool them to 40-60°C, reducing exhaust volume.
III. Core Treatment Equipment
1. Combustion Equipment
RTO (Regenerative Thermal Oxidation) Unit: Three ceramic
regenerators alternately preheat exhaust gas to 760-850°C,
oxidizing and decomposing organic matter with a heat recovery rate
of ≥95%.
A circulating fan (centrifugal blower) provides power, with a flow
rate of 2,000-50,000 m³/h.
Catalytic Combustion Unit (RCO) Unit: Precious metal catalysts
decompose VOCs at 250-400°C, achieving a purification rate of ≥95%.
2. Adsorption Unit
Activated Carbon Adsorption Tower: Honeycomb activated carbon
absorbs VOCs and odor molecules with an adsorption efficiency of
≥85%. The carbon layer requires regular replacement.
Zeolite Rotor: Targets high-volume, low-concentration exhaust gas,
concentrating VOCs through adsorption and desorption. 3. Dust
Removal Equipment
Bag-type dust collector: Filter bags intercept dust particles. The
filter chamber includes an air inlet, a dust cleaning system, and
an electronic control module.
Electrostatic precipitator: A high-voltage electrostatic field
absorbs dust. The modular design allows for rapid maintenance.
4. Biological Treatment Equipment
Biological filter: Microorganisms degrade low-concentration organic
waste gas. Includes an aeration tank, hydrolysis tank, and
sedimentation tank.
IV. Power System
1. High-temperature-resistant fan
The impeller (alloy/fiberglass) drives the air flow, with a
pressure of 1200-2500 Pa.
The frequency converter adjusts the air volume to match the
treatment requirements.
2. Motor
Provides power, with power adapted to the required air volume and
pressure, reducing energy consumption.
V. Emission Control System
1. Chimney
Height ≥ 15m to ensure exhaust gas dispersion and comply with the
"Comprehensive Emission Standards for Air Pollutants."
Built-in online monitors (VOCs, dust concentration) provide
real-time data feedback. 2. Electronic Control System
The PLC controller links the fan, combustion device, and monitoring
module for automated operation.
A fault alarm function ensures equipment safety.
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.
