Integrated Cartridge Dust Collector for Submicron Industrial Dust Filtration

Product Introduction

The integrated cartridge dust collector is a high-performance dust removal system that uses filter cartridges as its core filtration element. As a premium Dust Collector Filter, it relies on pulse back-blow cleaning, and a well-selected Air compressor filter on the compressed air pipeline guarantees clean, dry air for stable pulse valve operation. Early cartridge dust collectors were limited by small capacity, low filtration velocity and narrow application scope, mostly used in grain and welding industries. With continuous upgrades of new technology and filter media materials, the structural design and filter media have been greatly optimized. Modern integrated cartridge dust collectors can reach a total filtration area greater than 2000 m², meeting the standard GB6719-86 for large-scale dust collectors.

The complete equipment consists of air inlet and outlet, upper box, ash hopper, pulse cleaning system, airflow distribution plate, filter cartridges and electric control cabinet (pulse control device). Auxiliary supporting components include unloading valves, flexible connectors and mobile ash collection trolleys. It adopts sedimentation layout and inclined cartridge structure, featuring small footprint, high efficiency, low investment and easy maintenance. The modular design allows flexible expansion, making it suitable for metallurgy, building materials, chemical, electric power, pharmaceutical, tobacco, food, plastic, drying, powder spraying and welding fume treatment.

Working Principle

Dust-laden gas enters the dust collector chamber. When the airflow cross-section suddenly expands and passes through the airflow distribution plate, large coarse dust particles sink directly under gravity and inertial force. Fine particles with low density flow into the cartridge filtration area, and are captured on the outer surface of filter cartridges through Brownian diffusion, sieving and other combined filtration effects. The purified clean air passes through the cartridge media and flows into the clean air chamber, then discharges out through the exhaust outlet and induced draft fan.

To maintain stable filtration performance, pulse back-blow cleaning is carried out periodically. Compressed air (0.4–0.7 MPa) is released through electromagnetic pulse valves into the center of each filter cartridge. The powerful air pulse vibrates and blows off the dust cake accumulated on the outer cartridge surface. The dislodged dust falls down into the ash hopper. The pulse control system runs the cleaning cycle automatically according to preset programs, so the dust collector can keep continuous, stable operation without frequent shutdown. The airflow distribution plate at the inlet cushions the incoming air and protects cartridges from direct impact of abrasive dust, extending filter service life.

Main Technical Parameters & Model Specification Table

Performance indicators

Filtration efficiency: ≥99.9% for dust above 0.1μm

Outlet emission concentration: ≤15 mg/m³

Operating resistance: 500–800 Pa, initial resistance 170 Pa, final resistance 1200 Pa

Compressed air supply pressure: 0.4–0.7 MPa

Air treatment range: 5000 ~ 110000 m³/h

Core Advantages

Advanced sedimentation and inclined cartridge layout

The sedimentation design separates large particles before filtration, and the 15° tilted pull-out cartridge structure realizes excellent synchronous cleaning effect. No transmission moving parts are installed inside the cabinet, which greatly reduces potential failure points and maintenance workload. Cartridge replacement is fast and convenient, and no extra tools are required.

Superior submicron dust capture performance

It achieves 99.9% purification efficiency for dust particles larger than 0.1μm. The stable low running resistance saves energy consumption for the whole dedusting fan system. It can lower exhaust dust concentration down to 15 mg/m³ or even below, fully meeting strict global industrial emission standards. The dust release rate after pulse cleaning reaches 95%.

Built-in airflow protection baffle

The airflow distribution plate at the air inlet buffers high-speed incoming gas and blocks large abrasive particles, preventing direct impact on filter cartridge surface. This protective design effectively extends the service life of filter cartridges and reduces the frequency of cartridge replacement.

Flexible modular expansion

The modular unit design allows users to combine multiple sets freely. When production capacity expands, extra filter modules can be added without major modification of the original ventilation pipeline. It is highly adaptable for old factory renovation and new production line construction.

Multiple filter material and discharge options

Customers can select filter cartridges with high-temperature resistant, moisture-proof, flame-retardant or anti-static filter media according to working conditions. Ash discharge methods include ash bucket, star unloader and screw conveyor. PLC automatic pulse control and differential pressure display are optional, supporting horizontal series cartridge layout for easy inspection and maintenance.

Wide condition adaptability

It works well for ultra-fine, damp and fibrous dust. The collected dry dust is easy to collect, recycle and reuse, bringing economic benefits for raw material recovery. It maintains stable performance under fluctuating dust load, and is especially suitable for fine, dry particulate dust.

Low operation cost and compact footprint

The integrated structure saves workshop land space. Compared with traditional baghouse filters, it avoids frequent bag washing and replacement, cutting long-term maintenance labor and spare parts cost. The equipment runs smoothly with low noise and reliable long-term continuous operation.

Application Scenarios

This integrated cartridge dust collector is widely used in industries generating fine dry dust and fume: metallurgy, building materials, chemical industry, power plant, pharmaceutical, non-metallic mineral processing, tobacco, food, plastic processing, drying process, powder spraying and welding fume extraction. It is the preferred Dust Collector Filter for mechanical polishing, sanding, paint mixing, woodworking, electronic manufacturing and pharmaceutical powder production. It can be used as standalone fine filtration equipment, or installed after cyclone pre-separators to form two-stage dedusting systems. When equipped with pulse back-blowing, the compressed air pipeline must install an Air compressor filter to remove oil, moisture and impurities, preventing pulse valve blockage and sticking.

Installation, Operation and Maintenance

Installation and piping

Place the unit on a flat foundation and keep it level. Seal all flange joints tightly to avoid air leakage. Match the inlet and outlet flange with the ventilation duct. Arrange the compressed air pipeline with a qualified Air compressor filter upstream to protect the pulse valve manifold.

Startup sequence

Start the induced draft fan first, then activate the pulse control system. Set the pulse interval and pulse duration according to onsite dust concentration. Do not run the pulse cleaning system without fan operation, otherwise dust will accumulate on the cartridge surface rapidly.

Resistance monitoring

Watch the differential pressure reading. When the resistance rises to the preset upper limit, the automatic pulse cleaning program will trigger. If resistance cannot drop after cleaning, inspect cartridges for damage, clogging or moisture caking.

Regular ash removal

Empty the ash hopper on a fixed schedule. Overfilled ash will disturb internal airflow and re-entrain dust into the filtration zone. Check unloading valves and screw conveyors regularly for jamming.

Cartridge inspection and replacement

Check cartridges periodically. If there is perforation, oil contamination or irreversible blockage, replace the cartridge immediately. The 15° pull-out design simplifies inspection and replacement.

Compressed air system maintenance

Drain the air storage tank and maintain the Air compressor filter regularly to ensure dry, oil-free air supply for pulse cleaning.

FAQ

Q1: What dust types can this integrated cartridge dust collector handle?

A: It is suitable for ultra-fine dry dust, welding fume, powder coating dust, mineral dust, and can also handle damp and fibrous dust with proper filter media selection. It is not suitable for sticky, high-moisture dust that easily cakes on the filter surface.

Q2: What is the difference between cartridge dust collector and baghouse dust collector?

A: The filter cartridge has a larger filtration area in a smaller volume, easier pull-out replacement, no bag sagging problem. The integrated cartridge model has smaller footprint and lower maintenance frequency. Bag filters are more common for very high air volume and high-temperature heavy dust conditions.

Q3: Do I need an Air compressor filter for this equipment?

A: Yes. The pulse back-blow system relies on compressed air. An Air compressor filter is mandatory to remove oil and water, to prevent pulse valve failure and cartridge contamination from oily compressed air.

Q4: What is the service life of the filter cartridge?

A: Under normal dry, low-corrosion working conditions, filter cartridges can last 6–12 months. Service life depends on dust abrasiveness, moisture and inlet dust concentration. High-temperature and oily dust will shorten cartridge lifespan.

Q5: Can this equipment meet low emission standards directly?

A: Yes. Its filtration efficiency reaches 99.9% for dust above 0.1μm, outlet emission ≤15 mg/m³. It can be used as the final fine filtration Dust Collector Filter to meet strict environmental emission requirements.

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