Every project below was engineered, manufactured and commissioned by XinXie EP — from single workshop units to turnkey multi-stage purification trains. Browse by industry category to find a configuration close to your application.
Capture-at-source systems for robotic and manual welding lines: fume extraction workstations, spark pre-separation, pulse-jet cartridge filtration and stack emission monitoring — engineered to protect workers and pass local emission inspections.
Turnkey system for a robotic pump-frame welding cell: explosion-vented double-station fume extraction tables, spark and oil-mist pre-filtration, high-temperature flame-retardant cartridge filtration (0.5–1.0 µm), VFD fan with PLC interlocking, and a compliant stack with sampling platform.
Multi-stage purification trains for battery abuse testing, research laboratories and certification centers — handling mixed dust, acid gas and VOCs loads with explosion-protection design and continuous compliance monitoring.
Turnkey five-stage train: PTFE-membrane pulse baghouse (SS304) → cyclone-type spray tower with NaOH quench → wet electrostatic precipitator → waterproof honeycomb activated carbon → RCO catalytic combustion with ≥ 85% heat recovery. Full explosion-protection: flame arrestors, burst discs and interlock shutdowns.
Regenerative catalytic oxidation (RCO) units for organic waste gas streams — Pt/Pd catalyst at 300–400 °C with ≥ 98% destruction efficiency and waste-heat recovery. Supplied as the polishing stage of complete exhaust systems for testing centers and welding plants alike.
Our catalytic combustion systems operate inside two flagship projects: the battery safety test exhaust train at Guangzhou Customs Center and the welding line upgrade at Honda Power (China), where the RCO unit treats concentrated organic exhaust from the same plant.
Exhaust renovation for rotary pyrolysis kilns, drying furnaces and other high-temperature, dust-plus-hydrocarbon sources: tailor-made capture hoods, heat-resistant FMS felt baghouses and two-stage activated carbon adsorption, all sized by hood-by-hood face-velocity calculation.
Complete exhaust overhaul for 10 waste aluminum-plastic pyrolysis rotary kilns in Lichuan, Hubei: 30 capture hoods (charging, pressure-relief and oil-gas separation ports) at 0.6 m/s face velocity, φ1,000 mm main header, DMC-420 pulse baghouse with FMS felt (160–200 °C), two-stage activated carbon, 33,600 m³/h VFD fan and two 15 m stacks — plus enclosed collection for the wastewater pool and oil tank farm.
Two-train systems for non-ferrous melting furnaces and other hot, sticky, tar-laden sources: cooling and settling boxes, PTFE-membrane pulse baghouses rated 160 °C+, wet electrostatic precipitators for tar fume and acid mist, and honeycomb activated carbon polishing — sized by survey, not by catalog.
A 160,000 m³/h two-train system: the 120,000 m³/h furnace-area stream passes a cooling/settling box into a 1,300-bag PTFE pulse baghouse (≥ 99.9%, 0.8 m/min); the 40,000 m³/h furnace-interior stream is sealed-collected and polished by a wet electrostatic precipitator (264 tubes, 80 kV), G4/F7/F9 multi-stage filter and 6,000-block honeycomb activated carbon — targeting PM ≤ 10 mg/m³ at the stack.
Station-by-station capture for grinding, polishing and sanding workshops: semi-enclosed wheel guards, work-bench capture points, spark-safe steel ducting and a fire-defended centralized cartridge collector — designed to AQ 4273 and sized station by station.
Centralized negative-pressure system for 12 grinding/polishing stations: 10 nylon-wheel polishing posts and 2 belt sanders, 15,000 m³/h at 2,800 Pa with 24 flame-retardant PTFE cartridges (0.3 µm, 252 m²). Cyclone spark arrestor, one-way flame valve, tight-shut dampers and temperature-interlock shutdown form a four-line fire defense; PM ≤ 30 mg/m³ at the 15 m stack.
Centralized dust collection for machinery plants: dual-hopper pulse-jet collectors, spiral duct networks, dedicated fans and steel-tower stacks with sampling platforms — factory pre-assembled, crane-installed and commissioned by our own crews.
Turnkey delivery for the machinery plant in Nanchuan, Chongqing: dual-hopper pulse-jet collector with online cleaning and sealed discharge, spiral duct network, dedicated centrifugal fans, PLC control cabinet and a steel-tower stack with sampling platform — factory pre-assembled, crane-installed and commissioned in July 2025.
Integrated acoustic enclosures and tail-gas purification for engine test lines: sound-insulated test rooms with negative-pressure ventilation, hood capture without added back-pressure, spark-safe tempering, bag filtration and two-stage activated carbon — noise, heat and emissions engineered as one system.
Turnkey three-in-one delivery for 10 engine start-performance test rooms: welded steel acoustic enclosures (≤ 75 dB(A) at 1 m, doors ≥ 30 dB(A)), 40 air changes/h with rooms held at −10 to −30 Pa, Φ400 hoods capturing exhaust at 6.63 m/s, and a 30,000 m³/h train of swirl spark arrestor, tempering air, G4+F8 filters and two-stage honeycomb activated carbon through a 15 m stack.
Self-contained benches for single grinding and polishing stations: downflow-plus-backdraft capture, anti-static PTFE cartridge filtration, pulse cleaning and explosion-protection design — clean air recirculates indoors, so no ducting or central system is needed. Roll in, plug in, grind.
Factory-built YX-LT/GT1500 dual-station benches in service at client sites since 2024: 5,400 m³/h adjustable capture through the perforated 304-stainless work surface, four anti-static PTFE cartridges (44 m², 0.3 µm, > 99%), pulse-jet cleaning at 0.4–0.6 MPa, 5.5 kW explosion-proof fan and explosion vent panel — including a special variant built for Oriental Hope.
We engineer solutions for grinding, polishing, cutting, spraying and many other dust and fume applications — send us your case for a written proposal.
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