High-Efficiency Waste Gas Treatment Equipment For Industrial Exhaust Gas Purification

Dust Removal Equipment(for dust and smoke treatment)

1. Cyclone Dust Collector

Working Principle: Centrifugal force generated by rotating airflow throws coarse dust particles onto the cylinder wall for separation and collection.
Advantages: Simple structure, low cost, no consumables, high temperature resistance.
Disadvantages: Only effective for coarse dust; poor purification performance for fine particles.
Application: Pre-treatment of large-particle dust from woodworking, sand and stone processing, grain processing, etc.

2. Baghouse Dust Collector

Working Principle: Dust-laden gas passes through filter bags to trap dust; pulse jet cleaning removes accumulated dust periodically.
Advantages: Extremely high dust removal efficiency (over 99%), capable of capturing fine dust, stable operation.
Disadvantages: Filter bags are consumables; intolerant to high temperature, high humidity and corrosive gas.
Application: Most dust-containing working conditions such as cement, metallurgy, boilers, building materials and pharmaceutical industries.

3. Electrostatic Precipitator (ESP)

Working Principle: Dust particles are charged in a high-voltage electric field and adsorbed by positive and negative electrodes for separation.
Advantages: Large air volume capacity, low air resistance, high temperature resistance, long service life.
Disadvantages: Bulky equipment, high initial investment; efficiency drops sharply under fluctuating working conditions.
Application: Large-scale industrial flue gas dust removal for thermal power plants, large kilns, sintering machines, etc.

4. Wet Dust Scrubber

Working Principle: Water or washing liquid is sprayed to contact gas and capture dust; partial harmful gas can be absorbed simultaneously.
Advantages: Integrates dust removal, preliminary deodorization, cooling and explosion-proof functions.
Disadvantages: Generates wastewater requiring supporting sewage treatment; prone to freezing in winter.
Application: Metallurgy, chemical industry, mines with both dust and corrosive waste gas.

VOCs Treatment Equipment (for coating, printing, chemical, plastic industries, etc.)

1. Activated Carbon Adsorption Unit

Working Principle: Porous structure of activated carbon physically adsorbs organic substances in waste gas.
Advantages: Compact footprint, easy installation, low cost, suitable for low-concentration and large-air-volume waste gas.
Disadvantages: Saturated carbon needs replacement and is classified as hazardous waste, leading to rising operation costs; fire risk with high-concentration gas.
Application: Paint booths, ink printing, small plastic processing workshops.

2. UV Photocatalytic Oxidation Equipment

Working Principle: UV lamps paired with catalysts produce strong oxidizing free radicals to decompose organics and odors.
Advantages: Small footprint, no consumables, simple operation.
Disadvantages: Weak performance on high-concentration waste gas; prohibited for standalone use in most regions, only for auxiliary treatment.
Application: Low-concentration odor control, workshop deodorization, terminal auxiliary purification of waste gas.

3. Catalytic Combustion Equipment (CO/RCO)

Working Principle: VOCs are oxidized and decomposed into carbon dioxide and water at low temperature (200~400°C) with catalyst assistance.
Advantages: High purification efficiency, low energy consumption, no secondary pollution, waste heat recoverable for reuse.
Disadvantages: Catalysts are vulnerable to poisoning by dust and heavy metals; unsuitable for high-dust waste gas.
Application: Medium-concentration continuous organic waste gas from coating, pharmaceutical, food and chemical industries.

4. Regenerative Thermal Oxidizer (RTO)

Working Principle: VOCs are decomposed via high-temperature incineration (above 800°C); ceramic regenerators recover heat with thermal efficiency exceeding 90%.
Advantages: Ultra-high treatment efficiency, applicable to high-concentration waste gas with complex organic compositions.
Disadvantages: Oversized equipment, high capital cost, strict safety control requirements during operation.
Application: Petrochemical, coating, large-scale painting, fine chemical and other high-concentration, large-air-volume working conditions.

5. Zeolite Rotor + Combustion Integrated Machine

Working Principle: Zeolite molecular sieve concentrates low-concentration, large-volume waste gas first, then delivers concentrated gas to CO/RTO for incineration.
Advantages: Solves bottlenecks of low-concentration VOCs treatment, far lower energy consumption than direct incineration.
Disadvantages: Complete set equipment, relatively high upfront investment.
Application: Mainstream low-concentration VOCs scenarios including automobile whole-vehicle coating, large-format printing, film production, etc.

Acid-Base / Inorganic Waste Gas Equipment (electroplating, pickling, chemical industry, flue gas desulfurization)

Spray Scrubber (Packed Tower / Purification Tower)

Working Principle: Packing materials are filled inside the tower; alkaline or acidic liquid is sprayed to neutralize and remove waste gas. Alkali liquid removes hydrogen chloride, sulfur dioxide and nitrogen oxides; acid liquid removes ammonia gas.
Advantages: Mature technology, large treatment capacity, easy operation and maintenance, high cost performance.
Disadvantages: Only effective for water-soluble acid-base gas; produces circulating wastewater.
Application: Electroplating plants, pickling workshops, laboratories, boiler flue gas desulfurization, chemical acid-base tail gas.

Malodor & Biological Waste Gas Equipment

Biological Deodorization Box

Working Principle: Microbial flora decompose odorants and organic matter into harmless substances.
Advantages: Extremely low operating cost, no secondary pollution, low noise.
Disadvantages: Large floor area; strict requirements on temperature, humidity and waste gas concentration.
Application: Deodorization for sewage treatment stations, garbage stations, livestock farms, septic tanks and other facilities.