Pulse Jet Dust Collector

Pulse jet is the current mainstream dust cleaning method (e.g., pulse jet bag filters). It works by applying a brief (0.1-0.2 second) pulse of compressed air to the inside of the filter bag, creating a high-pressure airflow that impacts the inside of the filter bag, causing it to rapidly expand and vibrate, breaking off any dust cake adhering to the surface.

Reverse Air Dust Collectors

Reverse airflow (e.g., ambient air or inert gas) continuously sweeps the outside of the filter bag, creating a pressure differential between the inside and outside of the bag, forcing the dust layer to break free. These dust collectors are suitable for applications with low dust concentrations and coarse particles.

Shaker Dust Collector

The filter bags are suspended from the top of the unit and connected to the tube sheet at the bottom. Air to be filtered enters at the bottom, flows upward through the filter bags, and exits at the top, capturing contaminants.

• Applied in flue gas dust removal systems for coal-fired boilers, filtering fly ash (primarily composed of silica and alumina) produced by coal combustion.
• Dust collector filter bags must be resistant to high temperatures and able to withstand flue gas temperatures of 150-220°C. They must also be able to resist the corrosive effects of SO₂ and NOₓ in the flue gas to ensure low dust emission concentrations.

• Treats light dust generated by the combustion of biomass (straw, wood chips), or mixed flue dust from waste incineration (containing acidic gases and heavy metal particles).
• Dust collector filter bags are required to be acid-resistant and hydrolysis-resistant to prevent media aging caused by high flue gas humidity, while also being able to intercept fine particles (such as dioxin-attached particles).

• Used for underground dust removal in coal mining (e.g., tunneling faces, belt conveyors), dust collection during coal crushing, screening, and conveying, and filtering of pulverized coal particles.
• Dust collector filter bags must be constructed with wear-resistant, antistatic filter media to prevent static sparks caused by pulverized coal accumulation and reduce the risk of explosion.

• Filters blast furnace gas, converter/electric furnace flue gas, and steel mill dust.
• Dust filter bags must be heat-resistant, abrasion-resistant, and have good air permeability.

• Examples include flash furnace flue gas from copper smelting and fluoride dust from aluminum electrolysis.
• Dust collector filter bags must be resistant to acid and fluoride corrosion while also being able to capture fine metal particles.

• Handles powders (such as resin particles and additive dust) produced in the production of polymer materials such as PVC, polyethylene, and polypropylene.
• Dust collector filter bags must be resistant to organic solvents and aging to prevent solvent corrosion of the filter media.

• Filters pigment dusts such as titanium dioxide, carbon black, and red iron oxide.
• Dust collector filter bags must use low-adsorption filter media to prevent pigment adhesion and clogging.

• Used for filtering drug powder particles during the grinding, mixing, and drying of raw materials (such as antibiotics and vitamins).
• The filter bag must use food grade/pharmaceutical grade filter material to ensure that the filter material is free of fiber shedding and prevent drug powder contamination.

• Rubber dust (containing carbon black and vulcanizing agents) is generated during the vulcanization and crushing process.
• The dust collector filter bag must be oil-resistant, aging-resistant, and anti-static (to prevent static electricity generated by friction with rubber dust and cause explosion).

• Raw Material Crushing (Limestone, Clay Dust), Raw Material Grinding, Cement Grinding, and Cement Packaging.
• Dust collector filter bags require wear-resistant filter media to withstand high dust concentrations while ensuring efficient cleaning.

• Crush ceramic raw materials (kaolin, feldspar) and filter glass furnace flue dust, which contains siliceous particles.
• Dust collector filter bags are required to have high wear resistance and high temperature resistance, and also be resistant to corrosion from alkaline substances (such as Na₂O and K₂O) in furnace flue gas.

• Silica dust from quartz sand crushing/screening (long-term inhalation can cause silicosis), and ultrafine dust from talc production.
• The filter bag is required to have high filtration accuracy and be wear-resistant to prevent filter material damage and dust leakage.

• Molding sand dust (quartz sand, resin sand) from sand casting, and metal dust from casting cleaning (shot blasting, grinding).
• Dust collector filter bags must be wear-resistant and impact-resistant, and they must also be able to withstand the low temperature humidity after the casting cools down to prevent moisture from clogging the filter media.

• Grinding and polishing dust from automotive parts (engine blocks, gears), or oil-containing dust (a mixture of cutting fluid and metal chips) generated during machine tool cutting.
• The filter bag needs to use oil-resistant and water-resistant filter media (such as PTFE impregnated filter media) to prevent oil adhesion and clogging, and is also easy to clean.

• Flour dust from wheat milling, rice bran dust from rice processing, and starch dust from corn starch production.
• Filter bags must be food grade, odorless, fiber-free, and anti-static (to prevent dust accumulation and explosion)

• Powdered sugar from candy production, flour dust from biscuit baking, and milk powder particles from milk powder drying.
• Filter bags must comply with food contact material standards to ensure that the filtration process does not introduce contaminants and are easy to clean (to prevent residual food dust from breeding bacteria).

• Processes such as cutting, grinding, and planing generate large amounts of wood dust. This dust not only affects the workshop environment and harms the health of operators, but also poses a risk of explosion. Filter bags are required to collect this dust.

• Welding fumes (containing iron oxide and manganese dust) generated by industrial welding (such as steel structure welding) require high-efficiency filter media to protect the health of workers.

• Asphalt fumes and mineral dust generated during asphalt heating and mixing require filter bags that are heat-resistant and resistant to asphalt adhesion to prevent asphalt clogging of the filter media.