Unstoppable Filtration Multi-Cartridge Automatic backwash filters with Rotating Arm

1.Product Overview

AALfilter’s Automatic Multi-cartridges Backwash Filter with a rotary arm and automatic self-cleaning mechanism is an advanced filtration system integrating multiple wedge wire filter elements. When the filter elements become clogged, the unique rotary arm backwashing mechanism cleans the filter elements group by group.

This filter is designed to remove solid particles from various types of water and low-viscosity liquids (such as machining coolants), ensuring that the fluid meets cleanliness requirements for system operations and subsequent processes. It also protects downstream critical equipment from clogging, wear, and scaling, thereby improving efficiency and extending equipment lifespan.

The system operates in a fully automated, Unstoppable Filtration mode, significantly reducing downtime, maintenance costs, and labor expenses. It is an advanced solution for water and aqueous liquid filtration in demanding industrial applications.

2. Key Features

Patented Backwashing Technology:

The internal mechanical structure enables a true backwashing function, effectively removing trapped contaminants.

Ensures dead-zone-free cleaning, maintaining consistent flow capacity and long-term filtration efficiency.

Robust Wedge Wire Filter Elements:

Made of 304 or 316L stainless steel, providing high strength, precise filtration, and corrosion resistance.

Filtration precision ranges from 10micron backwashable filter to 50 to 2000 microns, supporting a maximum single-unit flow rate of 8000 m³/h.

Automated Self-Adjustment:

The system detects water quality fluctuations and automatically initiates the backwash process without manual intervention.

Low Maintenance & Operational Costs:

Minimal wear parts, no consumables, and low operating costs.

Smart Control System:

The control system responds quickly and accurately, allowing for adjustable backwash pressure differentials and time settings.

Sequential Backwashing:

Each filter element group is cleaned independently, ensuring uninterrupted filtration while maintaining filter safety and efficiency.

Pneumatic Drain Valve for Efficient Cleaning:

Short backwashing time, low water consumption, and environmentally friendly operation.

Compact and Flexible Design:

Space-saving structure, easy installation and mobility.

Remote Control Capability:

Integrated control mode supports remote monitoring and operation.

3. Technical Specifications

· Filter Element Type: Wedge Wire Slotted

· Flow Rate (m³/h): 17 – 8000

· Filtration Precision (μm): 50 – 2000

· Housing Material: 304, 316L, Carbon Steel (CS)

· Applicable Viscosity (cP): 1 – 40

· Operating Temperature (°C): 0 – 95

· Working Pressure (MPa): 0.6, 1.0

· Cleaning Activation Mode: Time-Based, Differential Pressure-Based

Model Specifications

Note:

The ideal flow rate (100μm) is for reference only. Actual flow rate depends on liquid viscosity, filtration precision, and cleanliness.

Maximum working temperature requires high-temperature seals.

Higher pressure ratings available upon request.

4. Applications

1. 1. Metallurgy & Steel Manufacturing

· Blast furnace water filtration to remove suspended solids and slag.

· Continuous casting and rolling mill cooling water filtration, preventing nozzle clogging.

· Pickling line filtration, removing iron oxide and scale.

1. 2. Chemical & Petrochemical Processing

· Process water filtration to ensure fluid purity for chemical production.

· Catalyst recovery, removing fine solid particles from reaction streams.

· Cooling tower water treatment, preventing biofouling and scale formation.

1. 3. Power Generation

· Boiler feed water filtration, reducing sediment buildup and corrosion.

· Condensate filtration, protecting turbines and heat exchangers.

· Cooling water circulation, preventing particulate accumulation.

1. 4. Oil & Gas (Injection & Produced Water Treatment)

· Oilfield produced water filtration, removing oil, sand, and scale.

· Injection water filtration, ensuring compatibility with well formations.

· Downstream refining applications, protecting heat exchangers and pumps.

1. 5. Environmental & Industrial Water Treatment

· Municipal and industrial wastewater treatment, removing solids and organics.

· Desalination pre-filtration, protecting RO membranes from fouling.

· Process water reuse, improving operational sustainability.

1. 6. Automotive & Machining

· Machining coolant filtration, extending coolant life and improving precision.

· Paint booth water treatment, removing particulates from spray booths.

· Engine testing water filtration, maintaining clean testing conditions.

1. 7. Pulp & Paper

· Paper machine whitewater filtration, preventing nozzle clogging.

· Wood pulp processing, removing fine fibers and debris.

· Black liquor recovery, improving chemical recycling efficiency.

1. 8. Food & Beverage Processing

· Bottled water and beverage production, ensuring microbial and particulate control.

· Dairy processing filtration, maintaining clean process water.

· Brewing and fermentation filtration, removing yeast and other residues.

1. 9. Textile & Dyeing

· Dye bath filtration, preventing fabric contamination.

· Cooling water treatment, reducing equipment fouling.

· Wastewater treatment, removing dyes and suspended solids.