These filters are also known as:
ProcesoNova's wet filters are used in almost all industrial sectors due to their various types, models, sizes, and custom designs. Each type of filter also has different models and sizes available.
Wet Filter FH.PN M100
Main Features of Wet Filters:
Construction Shapes: Square, rectangular, cylindrical, and horizontal.
Models: Monobloc, modular, and panelable.
Materials of Construction: AISI304, 316, 316L.
Flow Rates by Size and Model: From 1000 m³/h to 100,000 m³/h. (For higher flow rates, custom designs are available.)
Emissions: <10-50 mg/Nm³.
Emptying and Level Systems: Automatic.
Filtration Elements: Different types, sizes, and materials based on the fluid to be filtered.
Equipment for Explosive Atmospheres: ATEX classification.
Special Equipment: Customized to meet customer needs.
For atmospheres with any type of suspended particles (dry, wet, oily, and fibrous), fumes, and particles at high temperatures. It is applied in any type of industrial sector likely to emit suspended solid particles either internally or externally.
Wet filters, also known as gas scrubbers or scrubber filters, are essential equipment in industrial emission control, particularly in processes where gases and vapors generated during production contain harmful contaminants or particles. These filtration systems are designed to effectively remove contaminant gases, solid particles, and aerosols by using a liquid medium (typically water or chemical solutions) to absorb or dissolve impurities. They are especially used in industrial sectors where gas purification processes are required before being released into the atmosphere, ensuring compliance with environmental regulations.
There are various types of gas scrubbers or scrubbers, each adapted to the specific characteristics of the pollutants and the conditions of the process. Below, we detail the most common types:
Absorption Tower Scrubbers (Wet Scrubbers Tower):
This is one of the most common designs in industrial applications. It consists of a tower or column where contaminated gases enter and pass through a flow of water or chemical solution. As the gas rises through the tower, it comes into contact with the liquid, which acts as the cleaning medium, capturing pollutants and suspended particles.
Applications: This type of scrubber is widely used in the chemical, petrochemical, pharmaceutical, paper, and gas treatment plants industries, where high efficiency is required in the removal of acidic gases (such as SO₂) and solid particles.
Venturi Scrubbers:
The Venturi scrubber uses a narrow tube (Venturi) where the contaminated gases are forced to pass through a high-velocity water jet. This process creates strong turbulence that facilitates the capture of fine particles and the dissolution of acidic gases such as sulfur dioxide (SO₂).
Applications: These scrubbers are ideal for removing fine particles and acidic vapors in industries such as mining, cement manufacturing, and industrial gas treatment plants.
Plate Scrubbers:
This type of scrubber is based on a system of plates arranged in series inside a tower. Contaminated gases pass through the plates where pollutant absorption occurs. The plates provide prolonged contact between the gas and the liquid, improving the efficiency of the purification process.
Applications: Used in industrial processes where high filtration capacities are required for efficiently removing contaminant gases, such as in the steel industry and gas treatment plants.
Counter-Flow Scrubbers:
In these systems, the contaminated air flow and the liquid flow move in opposite directions, maximizing the contact time between the gas and the absorbent liquid. This design improves the efficiency of contaminant capture and is used in applications that require high purification levels.
Applications: Used in industries where gaseous emissions contain toxic or acidic compounds, such as in refinery plants and incineration processes.
Hybrid Scrubbers (Wet and Dry):
Hybrid scrubbers combine the benefits of both wet and dry systems, allowing for the capture of both solid particles and gases. These systems are especially effective in industrial applications where pollutants are present in both gas and dust forms, such as in chemical manufacturing and metal processing.
Applications: Ideal for industrial processes where both dust and acidic or corrosive gases are generated.
The basic operating principle of wet filters or scrubbers is simple yet highly efficient: the contaminated gas is introduced into the tower or chamber, where it comes into contact with an absorbent liquid. The liquid captures solid particles and dissolves the contaminating gases, purifying the air before its release into the environment. Scrubber systems use various methods to maximise this gas-liquid contact, thereby enhancing the efficiency of the purification process.
Capture of Solid Particles: As the gas passes through the system, solid particles are trapped in the liquid. The turbulent flow of the liquid enhances the capture of these particles.
Absorption of Gases: Acidic or toxic gases are dissolved in the absorbent liquid, which can be water or a chemical solution designed to neutralise the contaminants.
Liquid Recycling: The liquid used in the filtration process can be recycled through a recirculation system, improving efficiency and reducing operational costs.
High Efficiency in Pollutant Removal: Scrubbers are highly effective at removing a wide range of contaminants, both in the form of solid particles as well as acidic gases, vapours, and aerosols.
Flexibility and Adaptability: These systems are versatile and can be adapted to various industries and types of contaminants. From acidic gases to fine particles, scrubbers can be designed to meet the exact specifications of each industrial process.
Compliance with Environmental Regulations: Scrubbers help industries comply with environmental and occupational safety regulations by reducing pollutant emissions and improving air quality within the facilities.
Low Operational and Maintenance Costs: Compared to other filtration systems, scrubbers can be more cost-effective in the long term. The recycling of the absorbent liquid and periodic maintenance are the main operational tasks.
Energy Efficiency: Since the process is based on the absorption of gases through a liquid, scrubbers do not require additional energy for the filtration process, making them energy-efficient.
Chemical and Petrochemical Industry: In the manufacturing of chemical products, scrubbers are employed to capture hazardous gases such as ammonia vapours or acidic gases, and to purify the gases generated in chemical reaction processes.
Pulp and Paper Industry: During the bleaching and pulping processes, scrubbers are used to remove acidic gases, such as sulfur dioxide (SO₂), which are released into the air.
Metallurgical Industry: Scrubbers are commonly used to capture gases and particles generated during metal smelting and processing, such as nitrogen oxides (NOx) and other impurities.
Power Plants and Energy Generation: In power plants, especially those burning fossil fuels, wet scrubbers are used to eliminate pollutants like sulfur dioxide (SO₂), which contributes to acid rain.
Food Industry: Scrubbers are also used in the food industry to control the emission of odours or gaseous contaminants generated during food production and processing.
Gas Treatment in Incineration Plants: Scrubbers are used in incineration plants to clean exhaust gases before their release into the environment, removing toxic gases and particles generated during combustion.
Conclusion
Wet filters, also known as gas scrubbers, are essential for the treatment of gases and particles in numerous industrial applications. Their high efficiency in capturing gaseous and solid contaminants, along with their versatility in design, make them an indispensable solution for meeting environmental standards and ensuring a safer working environment.
Contact us for more information on how our scrubbers can help optimize your industrial processes and ensure compliance with environmental regulations.
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