Equipment
Integrated multi-stage VOC purification and odor control system engineered to capture and eliminate organic solvent vapors, pyrolytic plasticizers, and noxious smells from plastic compounding and recycling lines.
Overview
Captures, purifies, and deodorizes volatile organic compounds (VOCs), oil mists, and pungent fumes generated during plastic extrusion, compounding, and recycling processes.
The Plastic VOC Removal and Deodorization System provides comprehensive, multi-stage abatement of volatile organic compounds (VOCs), odorous fumes, pyrolytic oil mists, and hazardous airborne decomposition products generated across plastic compounding, extrusion pelletizing, and post-consumer polymer recycling lines.
Plastic recycling and thermal compounding processes—especially those handling contaminated post-consumer polyolefins (PCR PE/PP), printed films, ABS/HIPS e-waste, and vulcanized rubber or TPEs—release a complex cocktail of hydrocarbons, plasticizer fumes, aldehydes, monomer residues, and persistent sulfur/nitrogen odors from degradation and hot-melt degassing. This engineered system combines mechanical pre-filtration, electrostatic oil-mist capture, gas-phase activated carbon/zeolite chemisorption, and high-efficiency photo-catalytic or regenerative catalytic oxidation (CO/RCO) to deliver clean, deodorized exhaust air that strictly complies with the most stringent municipal environmental emission standards.
Key features
Each picture names one part of the machine and what it does for the material and the batch.
Pre-filtration section equipped with washable multi-layer stainless steel mesh demisters and pocket pre-filters to intercept pyrolytic polymer grease, oil aerosols, and airborne plastic fluff, shielding downstream carbon beds from premature blinding.
Engineered deep-bed adsorption chambers holding honeycomb or columnar virgin activated carbon with high iodine numbers (> 950 mg/g). Maximizes gas contact dwell time to remove persistent odors, non-methane hydrocarbons, and residual volatile monomers.
High-intensity UV photolysis tubes combined with nano-TiO2 coated ceramic honeycomb catalysts. High-energy ultraviolet photons break organic molecular bonds while generating active hydroxyl and ozone radicals to mineralize complex odorants.
Direct-driven backward-curved industrial centrifugal blower engineered with vibration isolators, silencer housing, and dynamic balancing. Delivers stable negative pressure throughout the collection hood network with low acoustic emissions (< 80 dB(A)).
PLC control cabinet featuring differential pressure sensors across each filter bank, automated temperature monitoring, dry-fire protection, and emergency bypass dampers to ensure absolute operational safety.
Free-standing self-supporting exhaust chimney equipped with EPA-standard emission sampling ports, access platform, ladder, and lightning arrester for compliant environmental stack testing.
Material and process
Read the conditions together: a machine is selected for the material and the output, not from its name alone.
Specifically engineered for plastic processing environments generating objectionable fumes, plasticizer vapors, and volatile compounds, including:
Adsorption and deodorization utility; technical operating boundaries include:
Inlet process air carrying volatile organic compounds (VOCs, typically 50–500 mg/m³ TVOC), plasticizer aerosols, pyrolytic oil mists, trace hydrochloric or organic acids, and noxious odor molecules generated during plastic heating, degassing, and pelletizing.
Inlet exhaust gas temperature must not exceed 65°C entering carbon adsorption beds (air coolers or dilution dampers must be applied if upstream vent temperatures are higher). Flammable vapor concentrations must remain strictly below 25% of the lower explosive limit (LEL).
Purified, deodorized clean air meeting or exceeding national and international municipal industrial emission standards (NMHC ≤ 20–50 mg/m³, TVOC removal efficiency ≥ 90%–98%, and odor concentration dimensionless index ≤ 20–50 OU).
Discharged vertically through a self-supporting exhaust stack (typically 15 meters above ground level or higher as mandated by local building/environmental codes) without visible smoke or lingering plastic odors.
Throughput
Read a figure together with the basis below it: the same machine reaches different numbers on different materials.
Rated air treatment volumetric capacity (Nm³/h) engineered based on the total capture area of exhaust hoods positioned over extruder vacuum vent ports, die heads, water cooling troughs, screen changers, and mixer vent ports. Air volume sizing incorporates a 20% to 25% safety ventilation margin to ensure capture face velocities of 0.5–1.2 m/s without plant air ingress choking.
Scope of supply
The quotation states the scope for the confirmed configuration; the groups below describe how a supply is normally split.
Installation planning
These are the connections the machine and the line around it have to agree on before the layout is fixed.
Mechanical: Standard round inlet and outlet duct connection flanges (DN400 to DN1200 depending on airflow rating). Free-standing vertical exhaust stack with guy-wire or structural tower support.
Electrical & Automation: 3-phase 380V/415V/480V 50/60 Hz power supply. Control interface equipped with dry contacts for remote Start/Stop, system running, fault alarm, and extruder interlock signaling (preventing extruder heating if the exhaust fan is offline).
The client is responsible for preparing a reinforced concrete foundation or certified structural steel rooftop platform designed to support static equipment weights and wind loads. The customer provides interconnecting spiral ductwork between individual machine collection hoods and the system main intake flange (unless contracted as turnkey ducting scope), secondary drainage piping for scrubber effluent or condensate disposal, and utility terminations (power, compressed air, makeup water).
Spare parts
The parts that wear in normal service, and the spares worth keeping on site. How often a part is replaced depends on the material and the duty the machine runs, so the basis is confirmed for each machine.
Replace or regenerate every 3 to 9 months based on differential pressure trend and downstream VOC sensor breakthrough monitoring.
Primary gas-phase chemisorption media. High-surface-area virgin carbon with iodine number > 950 mg/g. Specify trough dimensions and cubic meter volume when ordering replacement charges.
Inspect and wash monthly; replace pocket filter bags every 6 to 12 months upon mechanical degradation or high pressure drop.
First-line mechanical filtration pack to trap grease, heavy mists, and airborne particulates before carbon beds. Washable and reusable up to multiple cleaning cycles.
Replace on condition, not on a fixed interval: rising pressure drop across the dust collector, visible abrasion, holes, or caking that pulse cleaning no longer clears. Inspect at every shutdown.
The bags inside the dust collector on the collection side. Bags that pass dust send fines on to the pre-filters and carbon beds and cut extraction at the pickup hoods. Order by bag diameter and length, filter media and finish, and fitting style.
Replace after 8,000 to 10,000 continuous operating hours as UV irradiation intensity declines below effective photochemical thresholds.
Specialized 185nm/254nm ultraviolet lamps with quartz glass sleeves for photolytic odor oxidation. Keep 2 to 4 spare tubes on site.
Inspect belt tension quarterly; replace belts annually or immediately upon signs of slip, fraying, or squeal.
Critical mechanical transmission components for the heavy-duty induced draft blower. Keep one matched set of V-belts on site.
Calibrate semi-annually; replace if sensor diaphragm drifts or fails signal output.
Monitors pressure drop across pre-filters and carbon beds to alert operators to clogging and maintain safe duct velocities.
Keep one on site: dust builds up and erodes the bend of the run, and a cracked or chipped elbow stops the exhaust until it is replaced.
Elbow on the duct run between the pickup hoods and the filtration cabinet. Order against the duct diameter, the bend angle (45° or 90°), the end connection, and the material grade of the run it serves (glass, FRP/PP or stainless steel).
Blades, screens and other normal consumables are outside the standard warranty. How a spare part is identified and ordered is set out under Warranty & Spare Parts.
Selection
Work through what you already know. The rest is settled in the conversation, not before the first message.
System sizing and configuration selection should follow a structured engineering assessment:
Request a Quote A model name, a material or a drawing is enough to start.
Tell us the material, the process and what you need to achieve. Technical details can be completed later together with our sales team.
