Category Archives: Dust purification equipment

MANN+HUMMEL OIL MIST PURIFIER

Dust purification equipment

MANN+HUMMEL OIL MIST PURIFIER

MANN+HUMMEL’s mist collector technology separates oil mists, oil smoke, and oily dust from air. It ensures safe workshop environments and keeps machines working efficiently.

Mist and smoke are produced when machining operations such as turning, milling and grinding occur. They can create health hazards for workers and contaminate expensive CNC machine parts. Source capture reduces maintenance, downtime and energy costs while complying with workplace exposure limits.

Filtration Stages

Long-term exposure to oil mist is a health risk and it can contaminate the working environment as well as products, machines and equipment. It also lowers productivity and affects the quality of the end product. The best way to avoid this is to have an oil mist removal air system in your workshop.

These systems extract the oil mist at the source and remove it from the surrounding atmosphere. They consist of multiple filter stages which are designed specifically for the elimination of oil vapors and mist.

The 1st stage mechanical element separates the oil mist and swarf from the coolant. The swarf is then drained back into the machine sump.

Air passes through a layer of stainless steel mesh that is weaved with oil attracting oleophobic fibers. This creates irregular collisions which causes the oleophobic particles to adhere to the fibres and collect until they are large enough to fall down from the filter. This process is known as coalescing. The air is then scrubbed in stage two, where a deeper fiber bed is used to capture smaller particles. This filter has a high MERV (Minimum Efficiency Reporting Value) 15* filter rating.

The filtered air is then directed through an adsorptive carbon cartridge to remove any residual odours and vapors. The OIL MIST PURIFIER filtration system is compact and consists of up to 4 filtration stages.

Cyclone Effect

Cyclones are ocean storms that spin around a low-pressure area in the center. They cause immense wind and rain that lead to flooding, loss of life and destruction of property.

Oil mist adversely affects health of machine tool workers and is a major contributor to workplace accidents. It is therefore essential to prevent the spread of these contaminants. This is why regulations on the limitation of the exposure of oil mist are getting stricter.

The Apiste GME Series utilizes a cyclone design with multiple disks to effectively collect and remove oil mist particles from the airflow. The collection efficiency depends on the geometry of the cyclone and the rotation speed of the motor.

A branded filter has better quality factors (ratio of capture efficiency to pressure drop) than a clone separator or catch can, thanks to its more effective separation media and larger and finer separation particles. This filtration method enables the removal of more than 99.9% of oil mist at a particle size of less than 0.3 mm, making it suitable for CNC lathes, CNC integrated cutting machines, hobbing machines, grinding machines, washing tanks, closed working areas and so on.

Stainless-Steel Woven Mesh

Stainless-steel woven mesh is ideal for filtering applications due to its strength, durability and corrosion resistance. Its high tensile strength is also ideal for resisting impact and break-in attempts. Woven wire mesh has numerous openings that allow light, air and sound to pass through unobstructed. This allows for better visibility and circulation and superior acoustics within a facility. Woven mesh can also block passersby from seeing into your facilities, providing a sense of privacy and security on top of its protective capabilities.

During machining, milling and grinding processes, metalworking fluids are aerosolized into oil mists. This mist clogs machines, causing expensive downtime and reducing productivity. Oil mists can also contaminate delicate electronics. Oil mist collectors are effective at removing this airborne contamination from your facility, improving overall shop health and lowering maintenance costs.

The mist recovery air cleaner from Juwei consists of a thick filter made from different grades of woven stainless-steel wire. This filter collects the oil molecules through a 3D impact process and filters them away before returning pure air to the workplace. The result is significantly less oil mist on the machine and its surrounding surfaces, as well as lower maintenance and energy costs. Additionally, the less oil mist in the shop, the less it can corrode your machinery, leading to higher productivity and efficiency.

HEPA Filter

The HEPA filter is a special type of air filter that can trap fine particles and prohibit them from re-entering the air. It’s so effective at capturing particles that it meets stringent government standards for use in cleanrooms and other environments where the presence of hazardous substances like radioactive dust must be kept under control.

The filter works through a combination of mechanisms to trap particles. The smallest particles (down to 0.3 microns in size) are captured through a process called diffusion. The OIL MIST PURIFIER physics behind this mechanism is that the smaller the particle gets, the more it can bounce around and collide with gas molecules in the air stream. Over time, this raises the probability that the particle will come within one diameter of a fiber in the filter and stick to it. The medium size particles are collected through interception or impaction.

Both of these mechanisms are very efficient at capturing the majority of the harmful airborne pollutants that pass through the filter. This includes pollen, mold spores, dust mites, pet dander and other allergens as well as bacteria.

However, there are other harmful contaminants that a HEPA filter doesn’t address. These are chemicals known as Volatile Organic Compounds (VOCs). VOCs are off-gasses from many building materials, cleaning products and other common household items. They can be very damaging to health since they can react with other pollutants and penetrate deep into the lungs to enter the bloodstream.

Explosion-Proof Dust Removal Equipment

Dust purification equipment

explosionproof dustremoval equipment

Explosion-Proof Dust Removal Equipment

Dust explosions are a real threat at many plants and must be controlled to keep employees safe and minimize plant damage. Explosion-proof vacuums are used in a variety of applications to remove combustible dust from heavy equipment and facility floors.

The first step in mitigating this risk is determining whether your dust is combustible through an actual sample test by a lab. After that, you can select mitigation equipment.

Venturi Scrubbers

Venturi scrubbers remove contaminants and dusts from process gas streams. They also reclaim the pollutants as fuels or process raw materials, saving industry money. They are a preferred design for applications where high collection efficiency of between 70 and 99% is required for particles smaller than 1 m aerodynamic diameter.

The polluted gas stream and wash liquid collide tangentially at the venturi throat. The resulting jets of washer fluid, typically water, are atomized by the high gas velocity and create an enormous number of tiny droplets for the dust particles to impact on and collect in. explosion-proof dustremoval equipment The entrained liquid droplets must be separated from the scrubber outlet stream by mist eliminators, mesh pads or cyclones to prevent excessive liquid carryover into the gas stream, which can reduce absorption efficiency.

Venturi scrubbing systems require very high levels of wash fluid injection rates and nozzle pressures to ensure adequate gas-liquid contact. They are also subject to severe abrasion problems in the high-velocity areas of the nozzle and throat sections. The scrubbing system should therefore be designed of wear-resistant materials, and the recirculation pump that injects the wash fluid must be constructed of an easily maintainable, leak-proof design to minimize maintenance costs.

The dusty exhaust gas enters the flanged scrubber inlet connection via ductwork from the source of emissions. Tangential feed pipes introduce the scrubbing solution supplied by a recycle pump. These feed pipes are straight open pipes that do not contain spray nozzles. The dust/solution mixture discharges out the separator bottom drain and clean gas exits through the top of the separator.

Air Classifiers

Air Classifiers are a kind of industrial machine that separates materials by size, shape and density. This process involves forces, including air drag, gravity and centrifugal force, which sort heavier particles from lighter ones and coarse material from finer particles.

They can be used for many different kinds of applications, including dedusting a powder coating; separating minerals like limestone, ores, marble, granite, talc, dolomite or barite; and even classifying toners and other industrial fillers. Using an air classifier helps reduce the need for water in settling ponds, which can save money and improve efficiency in many ways.

These devices can be incorporated into other systems, such as a grinding mill and pneumatic conveying system. In a closed circuit with a mill, they can maximize the mill’s capacity and energy output by serving as its primary sizing device instead of a separator. They are also ideal for de-dusting stone sand that has higher surface moisture (3.5 to four percent) because the moistened particles stick together and can clog up other equipment.

They are built with a hinged housing that allows easy access and cleaning, which makes them a cost-effective option for companies looking to remove dust at the source, rather than in a downstream system that can be prone to blockages. They can also be integrated with a high-efficiency particle collector to help eliminate the need for water or a settling pond and achieve the highest possible throughput rates.

Immersion Separators

For a collision repair shop dealing with aluminum parts, the combustible metal dust that accumulates can pose serious explosion hazards. That’s why NRTL-certified equipment like Ruwac’s “Wet Mix” immersion separator is necessary to help safely collect and neutralize this danger.

The aluminum dust particles entering the vacuum are instantly mixed in a turbulent liquid bath, neutralizing them and making them inert before they leave the filtration system of the separator. The separator is made from stainless steel and can be used to handle combustible dust in Group E hazardous locations.

It’s possible to integrate the immersion separator into one of Tiger-Vac’s explosion-proof vacuum cleaners or dust ignition proof industrial vacs for NFPA 484 compliance. However, it’s also available as standalone equipment that can be installed on a variety of different vacuums and industrial vacs for combustible dust and explosion/dust ignition protection.

The combustible dust is captured by the low-sparking, stainless steel filter and is rendered inert in an oil or water bath within the unit. The resulting clean air is then released into the workspace, keeping the workers safe and avoiding any potential explosions caused by combustible dust. These units are perfect for a range of industries where combustible dust is common. They’re easy to operate and are great for ensuring good housekeeping standards as required by OSHA.

HEPA Filters

In addition to dust, a HEPA filter can also trap other particle pollutants such as mold spores and pollen. It can also capture microorganisms such as bacteria and some viruses that are 0.3 mm in size. These microscopic particles are very dangerous, especially for people with asthma or other respiratory conditions.

A HEPA filter is usually made from a PTFE or glass fiber material that’s arranged as a mat of randomly positioned strands. When air flows through the filter, the explosion-proof dustremoval equipment strands separate the smaller particulates from the larger ones. When the small particles reach the strands, they’re trapped by one of three mechanisms:

As the dust settles on the filter surface, it becomes compressed until it reaches a specific pressure drop. Depending on the efficiency of the filter, the pressure drop will increase with the amount of deposited dust. Unlike some other filters, the effectiveness of HEPA filters increases as the amount of deposited dust increases.

The Tiger-Vac CD Stainless portable dust collector is an explosion-proof ductless dust collector that’s ideal for food production, pharmaceuticals, clean rooms and other applications that require pristine working environments. The air-operated industrial vacuum meets NFPA 654 standards and comes standard with 2 or 3 stage filtration that includes a pre-filter, second stage MERV 14 95% efficient ASHRAE fiberglass box filter and a true HEPA filter.

Oil Mist Purifier – Keep Your Workers Healthy, Safe and Productive

Dust purification equipment

OIL MIST PURIFIER

Oil Mist Purifier – Keep Your Workers Healthy, Safe and Productive

Industrial oil mist filtration removes airborne oil from commercial workshops with CNC and other machine tools. This helps to keep your workers healthy, safe and productive.

Oil mist eliminators use coalescing filters to separate out oil from contaminated air before it is expelled from the shop. This prevents clogged heating and cooling systems and reduces maintenance costs.

Reduces Health Hazards

When metalworking fluids like coolants and lubricants become airborne, they OIL MIST PURIFIER can have serious health impacts on workers. Mists and fumes that contain chemicals irritate lungs, skin, eyes, and nose, and can lead to long-term problems with breathing, including respiratory disease and lung damage. They also cause slip-and-fall hazards on floors and surfaces and can make them slippery, resulting in workplace accidents that decrease productivity and raise maintenance costs.

The health effects of oil mist vary, depending on the type of metalworking fluid used and the chemicals in it. However, all oil mist can cause respiratory irritation if inhaled for long periods of time, and prolonged exposure has been linked to asthma, chronic bronchitis, impaired lung function and pulmonary fibrosis. In addition, some metalworking fluids can cause skin irritation and contact dermatitis if it becomes absorbed through the skin.

Additionally, if oil mist accumulates on machines or the surrounding environment, it can create a fire hazard. Moreover, it can lead to corrosion and the failure of sensitive electrical equipment. Using an industrial air cleaner to eliminate oil mists and fumes from the work environment protects human health, prevents expensive machinery repair and replacement, and reduces downtime and waste. It also safeguards your business from costly worker liability and healthcare costs associated with workplace contamination.

Reduces Maintenance

Oil mist can damage machinery, resulting in costly repair bills and lost production time. A top-rated industrial Absolent air filtration system can prevent damage and increase productivity by cleaning the air around machine tools and in workspaces. This protects workers and equipment, reduces maintenance costs, and allows your company to comply with workplace exposure limits.

Anytime metal-working machines are used in manufacturing, such as CNC machining, grinding and polishing, or welding, they produce fine oil mist. The mist is produced from cooling and lubricating fluids used to keep rotating machinery in good working condition. Without an oil mist extraction system in place, the fine particles of dissolved oils will build up on machinery and equipment over time, causing corrosion and clogging of airways. The resulting sticky film will attract dust and dirt, leading to expensive maintenance and increased downtime.

Our oil mist extractors remove the fine coolant mist and vapor at the source of production, returning clean air to the shop. They have multiple filter stages that separate the mist from the air, removing both oil and solid particulates. The first filter stage consists of stainless-steel woven mesh that protects the oil mist recovery system from iron chips and other impurities. This layer prevents rust, corrosion and premature wear of the system and ensures optimal performance. The second stage combines three filters that remove solid particulates, entrain bulk liquids, and agglomerate fine mist droplets into larger particles for capture and removal. The third stage is a centrifugal separator, which uses the force of centrifugal acceleration to separate the mist from an airstream and carries it to a drain point for collection.

Reduces Waste

Oil mist is an inevitable by-product of metalworking and many other processes that require lubricants, coolants or other fluids. It can be caused by leaks, overheating of lubricants and equipment malfunctions. If left uncontrolled it can disperse into the production environment, harming people, machines and products.

It poses health risks when inhaled, and prolonged exposure has been linked to respiratory problems such as asthma, bronchitis and impaired lung function. It can also cause skin irritation and dermatitis. When dropped, it can coat machinery and products making them unusable or stain them. It can also create a slippery surface that results in accidents and injuries, especially when it hangs in the air and drops onto workers.

A good air filtration system for metalworking fluids removes the harmful particulates and returns clean coolant to the machine tool. This reduces the quantity of industrial environmental special waste and allows you to extend your coolant life. An efficient depuration system also improves productivity by reducing machine stops for maintenance.

An effective oil mist filtration system captures the oily droplets using coalescing filters that are specially designed to collect oil mists. Filter media that is progressively structured from tightly woven fibers works best for mechanically and thermally generated oil mist. It can even handle some dry-soluble particulates that simply wash away with the liquid as they coalesce.

Reduces Energy

When mist collects on machinery or surfaces, it can leave behind a layer of oil that stains floors and surfaces and hangs in the air, creating a safety hazard. It can also irritate lungs, skin and eyes. An IVEC air cleaner captures oil mist before it can escape from the work area and keeps it out of the air for a healthier, safer working environment.

The first step in an IVEC oil mist collection system is a pre-filter that strains out large solid particulates, ensuring the mist makes it all the way to the packed-bed filter. Packed-bed filters made with multiple layers of tightly woven fibers can be used for mechanically and thermally generated mists. They can also handle dry-soluble particulates, which simply wash away with the liquid as the coalescing process occurs.

Packed-bed filter technology also can reduce energy use by preventing the mist OIL MIST PURIFIER from escaping from the work area. This can reduce the load on a machine’s HVAC system and increase the amount of time between planned maintenance visits.

Commercial-grade oil mist recovery and air filtration systems can be easily installed directly on the CNC or other machines in your industrial shop. They can save energy and money by reducing the load on a machine’s HVAC, as well as cut down on housekeeping costs for cleaning up dust and grease.

Explosion-Proof DustRemoval Equipment

Dust purification equipment

explosionproof dustremoval equipment

Explosion-Proof DustRemoval Equipment

Explosion-proof dustremoval equipment protects facilities that handle chemicals or combustible materials. This equipment includes explosion-proof vacuum systems used in industrial settings such as pharmaceutical or chemical plants, manufacturing, and oil refineries.

A specialized dust collector is typically installed in inlet or outlet ducting. This system reacts within milliseconds of detecting an explosion to close valves and spray a chemical agent into the ducting to suppress the explosion.

Vents

Venting is one of the most common methods of protecting process equipment from combustible dust explosions. This allows the fireball and associated pressure to be safely ejected to a safe area (Holbrow, 2000). It explosion-proof dustremoval equipment is important that the impact of the ejected fireball is considered when selecting a suitable vent type and size. The explosion vent design should also be compatible with the ducting system to which it is connected.

Explosion vents are available in both rectangular and round designs to suit a wide range of applications. They are designed to be mounted within a safety frame and can be rated for both atmospheric and vacuum service conditions. The round vents have a one or four petal relief opening with a domed construction that is designed to resist vacuum conditions.

In addition to venting, explosion isolation must be a consideration in any explosion protection strategy. This reduces the risk of flame propagation along ducting to connected process equipment.

Latches

Latches are often the first point of failure in your explosion-proof dust collection equipment. They require alignment of multiple components and screw installation under spring pressure. This can result in tired hands, lost components and multiple attempts to get the latch assembled. Our patented slotted hook latch allows for latch assembly WITHOUT the need for spring tension. This greatly reduces the amount of time needed for assembly, provides easier use and aids in OSHA compliance.

The latch bolt is seated in a notch bearing 24 in the forward end of the member 23 and in the rearward face of a keeper seated at the shoulder 19 when the door is closed. The latch bolt is also seated in a notch bearing 28 in the forward end of the handle for operation by the handle.

The latch actuator has end portions 21 and 28 of channel section each including integral webs 29 and 30, the mid-portion of the webs being cut away to provide a cross channel 32 for facilitating movement of the actuator relative to the base plate. When the latch is in the operating position, the pins 11 engage slots 10 in the first drive gear wheel. As the manually operated lever handle is grasped and moved to the disengaging position, its forward arm 29 engages the outer arm 30 of the latch bolt and the latter swivels outwardly from engagement with the keeper.

Immersion Separators

Some explosion-proof vacuums feature an immersion separator, which is used to render combustible metal explosion-proof dustremoval equipment dusts inert inside the machine. This helps keep work environments safe while providing a powerful tool for cleaning hazardous materials and maintaining good housekeeping standards. This technology is typically found on specialized combustible metal dust vacuums, such as the Ruwac USA NA35 Series.

These combustible dust vacuums are CSA-certified for use in Class I, Division 1, Group D and Class II, Groups E*, F & G locations. They also have PullClean filter cleaning technology and downstream HEPA filtration. Variants are available to handle both wet and dry materials, too. These vacuums are perfect for applications such as welding, cutting, grinding and sanding, metal polishing, thermal spraying and powder coating.

The metal drums on these units serve as containment containers that ensure explosive or combustible dust is confined while it’s being recovered by the vacuum. The explosion-proof vacuums are usually made of materials that can withstand an internal pressure explosion, such as stainless steel or reinforced fiberglass. They also have anti-sparking components to minimize the risk of fire due to static electricity.

Explosion-proof vacuums are powered by compressed air and do not use electrical motors that can generate static electricity or sparks. They are equipped with multiple sets of filters to reduce the amount of dust that reaches the motor, and their components and accessories have been joined together and grounded to safely discharge any built-up static and prevent sparks and explosion threats.

Filters

Almost all manufacturing and processing operations generate dust, and many of these particles are combustible or explosive. Using the right kind of explosion-proof dust removal equipment eliminates these hazards and keeps workers safe, while also improving production quality and reducing maintenance needs.

Combustible dust fires are a major cause of industrial accidents that can severely injure workers and damage equipment. These fires are usually caused by ignition sources like sparks from cutting and grinding equipment or embers from welding activities. It is essential to find the best explosion protection systems and locate them around critical operations like these.

For example, the Monroe Dual Throat Venturi Scrubber uses water to reduce a combustible dust’s explosion potential and transfer it into the water stream. The water contact, baffling, and mist elimination stages in the scrubber process help remove the particle from the air. The water-scrubber system then pumps the clean, breathable air back into the workplace. This type of explosion-proof dust extraction system is an excellent option for a wide range of industrial applications, such as metal fabrication, welding and cutting, woodworking, chemical pharmaceuticals, and more.

In addition to the aforementioned methods, industrial explosion-proof vacuums can be used for other types of hazard mitigation, such as flammable liquids and spills, or removing sanding and grinding debris. They are also ideal for a wide range of cleaning tasks in food production, labs, and pharmaceuticals, or other clean areas. The Tiger-Vac CD-600EX Stainless portable explosion-proof vacuum meets OSHA and 3rd party NFPA standards for Division 1 Hazardous Locations, and can handle large volumes of combustible dust with an effective capture velocity of over 1200 cfm. It features a spark-trap, manual filter pulse cleaning, articulating arm, and locking casters for easy movement.

Smoke Purifier – Ideal Purchase

Dust purification equipment

Smoke Purifier – Ideal Purchase

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SMOKE PURIFIER

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