Fume Extraction System

Product Details:

Subhawati Ventilation Systems, established in 2019, is a trusted name in the air handling and pollution control sector. As one of the leading manufacturers in Delhi, we specialize in providing state-of-the-art Pulse Jet Bag Filters that meet the stringent air quality standards required in modern industrial settings.

What is a Pulse Jet Bag Filter?

A Pulse Jet Bag Filter is a dust collection system that uses fabric filter bags to trap dust and particulate matter from gas or air streams. This filtration technology is widely used in various industries such as cement, steel, pharmaceuticals, food processing, and chemical industries to control dust emissions and maintain environmental safety.

Pulse Jet Bag Filters use a series of bags made of fabric materials to filter the particulate-laden air or gas. Once the air enters the filtration system, the dust gets trapped on the external surface of the bags, allowing only clean air to pass through. The accumulated dust is periodically removed through a pulse of compressed air, which ensures the continuous efficiency of the system.

Product Specification

Capacity Range: 500 m3/hr. - 4,50,000 m3/hr.

Filtration Area: 10 m2 – 750 m2.

How Pulse Jet Bag Filters Work

The operation of a Pulse Jet Bag Filter is fairly simple but highly effective. Here’s a step-by-step overview of the process:

Dirty Air Inlet: The dust-laden air enters the bag filter housing.

Filtration Process: The dust particles get captured on the external surface of the filter bags while clean air passes through the filter material.

Cleaning Cycle: After the dust accumulates on the bags, a high-pressure pulse of compressed air is injected into the filter bags, causing a rapid expansion of the bag fabric. This sudden expansion dislodges the dust particles from the surface of the bags.

Dust Collection: The dislodged dust falls into the hopper at the bottom of the unit and can be disposed of or recycled depending on the application.

Continuous Operation: This pulse jet system allows the filter to work continuously, providing high efficiency in industrial dust collection processes.

Key Benefits of Pulse Jet Bag Filters

High Filtration Efficiency: Pulse Jet Bag Filters offer high dust collection efficiency, often achieving a dust removal rate of 99.9%. This makes them ideal for industries requiring stringent air quality controls.

Cost-Effective Operation: The automatic cleaning system reduces downtime and maintenance costs. The high efficiency of the system also results in energy savings.

Compact Design: Compared to other types of bag filters, Pulse Jet Bag Filters have a compact design, making them suitable for industries with space constraints.

Durability: These filters are built to last. The fabric bags and sturdy housing materials are designed to withstand harsh industrial environments and continuous use.

Customizable: Pulse Jet Bag Filters can be customized to meet the specific requirements of different industries, allowing flexibility in terms of design and capacity.

Product Details:

Extraction Arms - Extraction arms for low vacuum systems are constructed of a hood and hose or hose and tube combination. The arm’s diameter is typically 8 inches; lengths are usually 6, 10 or 13 feet (2, 3 or 4 meters) with boom extensions available. When correctly positioned, the capture capability of adjustable fume extraction arms is suitable for all position welding and cutting. A lamp with arc sensor kit is available for most arms. 2. Ducting - Enclosed pathway for moving welding fume from capture device to filtration unit. 3. Filter Unit - Lincoln Electric filter units have self-cleaning capability and filter media designed for welding fume. Filters with a Minimum Efficiency Reporting Value (MERV) rating of 16 are available. (Filter efficiency is dependent on process and particulate type and size). A collection bin located under the filter unit provides a convenient means to handle collected particulate. (Particulate should be disposed of according to Federal, State and local regulations). Some filter units may include a pre-separator to protect filter cartridges from mechanical damage due to larger particles. 4. Fan Motor - When reviewing fan specifications, Lincoln Electric looks closely at: Correctly sizing the fan motor will minimize operating energy costs while providing the correct amount of CFM to meet the system and customer needs. 5. Controls - Two control options are available on low vacuum central systems – manual or automatic. Either control system can be used with or without filtration. a. Manual On/Off Control - Manual control results in the fan running at full speed and 100% capacity regardless of demand when the system is turned on. Manual control has the least expensive installation costs, but high energy usage when compared to automatic control. b. Automatic Control - A central system with automatic control uses a variable frequency (or inverter) drive to adjust the fan speed based on extraction need. As the control system senses more welding arcs, the fan speed increases to handle the additional demand. As demand lessens, the fan slows down. Energy savings can be realized with automatic controls; however, the installation cost is higher than manual controls.