Frequently Asked Questions

Solid-liquid separation is an industrial filtration process used to remove solid particles from liquid streams to improve product quality, recover valuable materials, and protect downstream equipment.

The separation process uses technologies such as pressure filtration, candle filtration, membrane filtration, and automatic filtration systems.

Solid-liquid separation is widely used in chemical processing, pharmaceutical manufacturing, lithium battery production, petrochemical plants, and wastewater treatment.

Liquid filtration removes suspended solids or contaminants from liquid streams, while gas filtration removes particles, droplets, or impurities from gas streams.

The main differences include:

Industrial filtration systems include automatic backwash filters, candle filters, bag filters, cartridge filters, gas-liquid separators, membrane filtration systems, and customized filtration equipment.

Different filtration technologies are selected based on:

• Particle size
• Flow rate
• Operating pressure
• Temperature
• Material compatibility
• Continuous operation requirements

An industrial filtration system works by passing contaminated fluid through a filter medium that captures unwanted particles while allowing clean fluid to pass through.

The basic process includes:

1. Contaminated fluid enters the filter.
2. Filter media captures particles.
3. Clean fluid exits the system.
4. Filter elements are cleaned or replaced when required.

Automatic filtration systems can maintain continuous operation through self-cleaning mechanisms.

An industrial filtration system is equipment designed to separate contaminants from process fluids or gases to improve production efficiency and protect equipment.

Industrial filtration systems are commonly used in:

• Chemical plants
• Oil & gas facilities
• Lithium battery manufacturing
• Pharmaceutical production
• Power generation
• Water treatment

The right filter material depends on chemical compatibility, operating temperature, pressure, corrosion resistance, and filtration requirements.

Common materials include:

• Stainless steel 304
• Stainless steel 316L
• Special alloys
• Polymer filter media

For corrosive or high-temperature applications, material selection is critical for equipment reliability.

The correct industrial filter is selected based on flow rate, filtration accuracy, fluid characteristics, operating conditions, and maintenance requirements.

Key selection factors include:

• Fluid type
• Particle size
• Solid concentration
• Temperature
• Pressure
• Required automation level

Engineers need process information including flow rate, fluid properties, filtration accuracy, operating pressure, temperature, and solid characteristics to select the right filtration equipment.

Required data:

• Fluid composition
• Flow capacity
• Particle size
• Operating conditions
• Material requirements
• Cleaning method

Filtration accuracy is determined by particle size, product quality requirements, and downstream equipment protection requirements.

A finer filtration rating provides better particle removal but may require:

• Larger filtration area
• Higher maintenance frequency
• Different filter media selection

Flow rate directly affects filter size, filtration area, pressure drop, and equipment configuration.

Higher flow rates usually require:

• Larger filtration areas
• Multiple filter elements
• Larger equipment capacity

Yes. Industrial filtration systems can be designed for high-temperature and corrosive applications by selecting suitable materials, filter media, and equipment configurations.

Common solutions include:

• Stainless steel 316L construction
• Special alloy materials
• Corrosion-resistant coatings

Industrial filtration systems are widely used in chemical, petrochemical, energy, pharmaceutical, lithium battery, food processing, and environmental industries.

Typical applications include:

• Raw material purification
• Catalyst recovery
• Process liquid filtration
• Gas purification
• Wastewater treatment

Bag filters are suitable for higher contaminant loading, while cartridge filters provide finer filtration accuracy for precision applications.

A candle filter is a closed pressure filtration system using multiple vertical filter elements to achieve efficient solid-liquid separation.

It is commonly used for:

• Catalyst recovery
• Fine chemical filtration
• Pharmaceutical applications
• High-value product recovery

An automatic backwash filter is a self-cleaning filtration system that removes contaminants continuously without stopping operation.

It automatically cleans filter elements through backwashing when pressure difference reaches a preset value.

Customized filtration equipment is designed according to process requirements, including fluid characteristics, capacity, filtration performance, and operating conditions.

Process:

1. Requirement analysis
2. Engineering design
3. Material selection
4. Manufacturing
5. Testing and commissioning

Yes. UNITE provides customized filtration systems including equipment design, material selection, automation control, and complete system integration.

Yes. UNITE can provide complete filtration solutions from process analysis and equipment design to manufacturing and commissioning.

The service life of industrial filtration equipment depends on material selection, operating conditions, maintenance practices, and filtration requirements.

With proper design and maintenance, industrial filtration systems can provide reliable long-term operation.

Yes. UNITE provides installation guidance, commissioning support, operation training, and technical assistance for industrial filtration systems.

Filter element replacement depends on contamination level, pressure drop, operating hours, and process requirements.

Regular monitoring helps optimize replacement frequency and reduce operating costs.

Maintenance costs can be reduced through proper filter selection, automatic cleaning technology, preventive maintenance, and optimized operating conditions.