Dust Cleaning System for Nonferrous Metal Industry
HQCC was founded in 1982, and it is a high-tech corporation which is specialized in research and develop of environmental protection technologies, manufacture environmental equipment, projects construction and consulting.
We are professionally manufacturing of de-dusting systems and their parts as bag filters, de-sulfuration equipment, pneumatic transportation equipment, dust handling equipment, mechanical air cooling equipment and components in all different types and specifications. All these products are used widely in industry fields such as metallurgy, power, machinery, foundry, cement, chemical, food, etc..
Our clients list includes a lots of large scale iron and steel enterprises such as Baosteel, Baotou Iron & Steel Group, Ma Anshan steel Company, Sanming Steel Company, Nanjing Steel Group, Xining Special Steel Company, Sha Steel company; and some foundry enterprises such as China Faw Group Corporation, Dongfeng Motor Group, Guangzhou Honda. We also export our products to Vietnam, Malaysia, Burma, Turkey, India, Indonesia, Japan, UAE, and Iran.
Why choose us?
Complete process system
Because of its long history, large output, wide distribution, high market reputation, a complete process system, has enjoyed a good reputation in the industry.
Stay true to the mission
We will do our best efforts to make more contributions to promoting the harmonious between human and the nature.
Quality team
Has established a unique design, manufacturing and construction team, can complete all kinds of system engineering design, production, installation.
Global service
International users radiate Vietnam, Malaysia, Myanmar, Italy, Turkey, Japan, Thailand, UAE, Iran, Russia, India...
A dust cleaning system for nonferrous metal industry is a type of air pollution control equipment used in factories, plants, warehouses and other industrial or commercial settings to meet environmental and workplace safety requirements. Effective dust collection systems control, reduce, and remove potentially harmful particulate matter and fumes from gases from a manufacturing process or the air and the surrounding environment during production and manufacturing. The equipment is specifically designed to purify and filter hazardous dust and fine particulate contaminant matter released into the work environment or atmosphere to maintain and improve air quality.
Benefits of Dust Cleaning System For Nonferrous Metal Industry
They improve health and safety
When the air is filled with dirt, dust, debris, chemicals or gasses, it can affect the lungs of anyone who breathes this air in. Not only that, but this particulate can collect on or near equipment, posing a significant fire hazard. With a dust cleaning system for nonferrous metal industry, these contaminants are removed from the air, cleaning the air and improving the safety of everyone inside.
They increase productivity
When dirt, dust and debris collect on equipment, it can make its way inside, interfering with the mechanics of the equipment. This can lead to slower machines and broken equipment. Compromised machinery constantly needs attention and repairs. Dust cleaning system for nonferrous metal industry remove this risk, allowing your machinery to work at optimal performance.
They lead to better product quality
With dust in the air, it can collect on products throughout the manufacturing process. This can negatively impact the quality of the finished product. Dust cleaning system for nonferrous metal industry, however, significantly reduce the dust, smoke and fumes in the air, keeping them away from finished products and thus improving their quality and increasing customer satisfaction.
They help you meet compliance regulations
There are numerous laws and regulations in place for workplace safety. Some of these regulations are related to the environment and the quality of the air. Poor air quality can cost you heavily, not just in fines, but by creating potential hazards that can damage your factory or affect your employees. Dust cleaning system for nonferrous metal industry help you to comply with governmental regulations as well as keeping everyone (and everything) inside the building safe.
They help to ensure happier employees
When the air quality is bad, employees suffer. As a result, they become unhappy and start to look for employment elsewhere. Unsatisfied employees don’t work well, and high employee turnover can prove costly. Keeping the air clean and healthy with a dust cleaning system for nonferrous metal industry improves the morale of your employees, allowing you to retain great, happy people in the workplace.
Types of Dust Cleaning System For Nonferrous Metal Industry
Shaker dust collectors
Shaker dust collectors are a shake-cleaning baghouse system. The system either cleans off-line when the airflow is temporarily halted or sections the baghouse into compartments. A compartmented design offers continuous cleaning of the unit while allowing for the individual compartments to be taken offline for servicing. These units are common where it is impractical to supply compressed air for bag cleaning, as in foundries, steel mills, the mining industry, power plants, and smelting industries. They are also used where dry material is stored in silos and other bulk storage containers.
Pulse jet dust collectors
Pulse jet dust collectors are another kind of baghouse system that comes in a variety of designs to meet the application needs of the industry. The bag cleaning system operates via a rapid, high-pressure air jet cleaning which sends a blast or shock of air through the bag that shatters and discharges the dust cake for disposal. The rapid pulse of air allows for continuous operation with the fan running, and because of it the system is not generally compartmentalized. Pulse jet models are the most common type of industrial dust collectors, due to their ability to be easily customized, capability to handle a wide range of temperatures and pressures, and their high collection efficiency. They can be found in most manufacturing environments wherein bulk solids are processed, including chemical and mineral production, food processing plants and metal fabrication. Pulse jet collectors can be fabricated from a wide range of materials, including carbon steel, stainless steel, aluminum, Inconel, Hastelloy and other special alloys.
Cartridge collectors
For certain applications, cartridge collectors are a type of fabric filter designed for specific applications. They offer an advantage where smaller space requirements are necessary for the same airflow of a larger baghouse system. Cartridge collectors pack more fabric area into a smaller space, utilize fewer filters, and change filters from outside the collector, which minimizes safety hazards. These features also reduce the time to change the filters and associated labor costs. Find cartridge collectors in commercial and industrial environments with very fine-to-light dust and moderate dust-like powder coating, metalworking, woodworking, fume collection, thermal spray, and pharmaceutical manufacturing, among other processes.
Cyclone dust collectors
Cyclone dust collectors are a type of inertial separator that separates dust from a gas stream through centrifugal force. Air is purified by creating a cyclonic action within the cyclone collection chamber. An intense circular airflow resembling a vortex pushes the dust particles against the cyclone’s wall, which slide down to the base of the hopper for collection. Cyclone systems can remove heavier and oversized particles mixed in with fine dust. They are often used as pre-cleaners before baghouses. Cyclones are often used in woodworking, pulp and paper, shot blasting, mills, grain and agriculture, recycling plants, and many other industries, especially when particles are over 20 microns in size.
Electrostatic precipitators
Electrostatic precipitators separate soot, ash, and dust particles from exhaust gases using static electricity. Operating on the same principle as an Ionic air purifier, electrostatic forces negatively charge airborne particles while they flow through an ionized field between the electrodes within a chamber. Once the particles are charged, they are a positively charged electrode captured. Electrostatic precipitators are found at industrial power plants that burn fossil fuels such as oil and coal.
Dust collection ductwork
The design of the ductwork may seem simple, but it has to be carefully considered to ensure the proper performance of the system. The size of the pipe depends on the tool size, air requirements, length of needed pipe, number of machines being serviced, and the types of particulates being extracted. The ductwork size changes throughout the system and collects the air drawn in by fans and collectors.
Fans or blowers
Though a fan or blower may have a simple design when installed in a dust collection system, several factors have to be considered. The first of those factors is the volume of air that needs to be moved. This is measured in cubic feet per minute (CFM). The next consideration is the static pressure throughout the whole system. Other variables are temperature, substances in the air, and the level of moisture.
The blower or fan is a critical element in a dust collection system since it is the mechanism that pulls the contaminated air into the ductwork away from the workplace and sends it to the filtration and cleaning systems. The basic types of blowers are centrifugal and axial. The centrifugal type has wheels in the housing, while the axial type has propellers.
Dust filter
The dust filter is the air-cleaning portion of the dust collection system. There isn’t any one standard dust collection filter. In essence, the blower pulls the air from the location into the filter that removes the particulates from the air. The air-to-cloth ratio is the amount of air that passes through a square foot of the filter. The lower the ratio, the higher quality of the filtration system's efficiency.
Dust filter cleaning system
As can be imagined, the filtration system for a dust collection system can become filled and clogged as particulates build up on the surface of the filter. There are a variety of methods used to clean filters, some of which involve shutting down the system. This is not an option for systems that have to operate continuously, so alternate methods have to be used during operation.
How to Maintain Dust Cleaning System For Nonferrous Metal Industry
Create an inspection/maintenance program
A typical program consists of a schedule for periodic inspections that are performed on a daily, weekly, monthly, semi-annual and annual basis. Failing to periodically inspect the dust cleaning system for nonferrous metal industry can hurt its performance. Subsequently, the dust cleaning system for nonferrous metal industry may not meet EPA outlet emissions standards.
Don’t exceed recommended pressure drop
Sometimes called differential pressure, it’s the amount of static resistance across filters when operating a positive- or negative-pressure dust collector. Pressure drop, typically measured in inches of water column (in w.c.), is a good indicator of the amount of dust that has collected on the filter media and, if continually monitored, the condition of the filters.
New filters have the lowest pressure drop because of the inherent permeability of the media. As the bags develop a dust cake, some particulate embeds itself into the filter media, increasing pressure drop accordingly. The filtering of the airstream through this accumulated dust cake provides high-efficiency collection of fine particulate. In fact, the highest efficiency a dust collector can offer is just before the cleaning is initiated. However, high differential pressures can cause filter media bleed-through or blinding. Therefore, do not to exceed the manufacturer’s recommended operating pressure drop.
Ensure cleaning system functions properly
Equipment use a variety of cleaning systems to dislodge accumulated dust cake from the filter media. Systems include reverse air, shaker or pulse clean. Regardless of the style of cleaning, it is imperative that this system function properly at all times. Without an effective cleaning system, dust will continue to build on the bags. The result will be an increased pressure drop and reduced volume of ventilation air at the pick-up points. Further, airstream velocities within the ductwork will decrease and cause dropout of dust in the ducts. This may choke the entire system and render it ineffective.
Watch for visible emissions
This includes any particulate that can be seen discharging from the exhaust stack. These emissions indicate a breach in a seal or a broken (torn) filter. In either case, you must find and correct the leak immediately. Not only will the emission cause a health concern and damage the property outside the plant, but it may also bring about monetary fines imposed by local, state and federal environmental agencies. Additionally, fans located downstream of the collector can be damaged from abrasion or become imbalanced if you don’t correct this condition quickly.
Continually monitor exhaust from the dust collector. Besides visual inspections, consider incorporating a broken bag detector into the clean air ductwork. If a bag begins to fail, or there’s a leak in the bag seal, you’ll detect the particles that bypass the media. Typically, these detectors use triboelectric technology. These devices can be wired to an alarm horn, siren or PLC.
Select the right exhaust fan
Dust collection systems require an exhaust fan to accelerate ventilation air from the point of pick-up, through the ductwork and dust collector filter media and out the exhaust stack. Fans are selected to accommodate volume (SCFM) and pressure drop throughout the system. Calculate the pressure drop by evaluating the static resistance of the dust collector, ductwork and pick-up points/hoods.
Inspect the filter media
This is the most important item in a dust collector because it accumulates and supports a dust cake. This dust cake is what provides high filtering efficiencies during operation. Inspect the clean-air side of the dust collector for leaks and the bags for tears. If pressure-drop within a dust collector becomes extremely high relative to historical data, it may be caused by excessive dust cake or blinding of the filter bags.
Depending on the application, differential pressure may take a number of hours or even days to develop. It is essential that you keep filtering velocities low for new filter media. Reducing the volume decreases the airstream’s velocity, thus protecting the bags from high-velocity impingement of dust. If you expose bags to the fan’s full volume, fine particles may embed themselves into the bags’ inner fibers and begin blinding. This can also reduce the life of the bags by damaging the fibers of the media. So make sure to season a collector’s filter bags.
The size of the dust collector
Before you buy an dust cleaning system for nonferrous metal industry, you have to know what size of dust collector you need. The first thing to help determine this is if you are going to use ambient type dust collection or source capture dust collection. Ambient collection is when you’re cleaning the general shop air, whereas source capture is when you’re picking up the particulate at the point of pollution.
What is the rate dust is being produced?
To have a properly sized dust collector, there are a few factors to study that help allude to the rate at which dust is being produced within a given area. The cubic feet of space that dust is being collected from directly affects the size of the industrial dust collector needed. It’s also important to consider the number of machines that are producing the dust and if those machines are being run on multiple shifts.
Location of the dust collector
Where is your dust collector going to be? Determining where to put the dust collector is based on numerous considerations such as foundation type, height restrictions and floor space. Certain requirements that have to be met when placing a dust collector.
Indoors or outdoors
Dust collection systems can be placed indoors or outdoors. Putting the dust collector indoors can be ruled out quickly if there is not enough space or if there’s going to be employees near the system where the noise level will be too high. Installing a dust collector outdoors may not be an option if the building is leased and the landlord does not want penetrations in the building for ducting. The climate also directly affects whether a dust collector can be placed outdoors. This is a case-by-case scenario as all circumstances have to be considered.
Installation requirements
Before you buy an dust collector, be sure to consider what it will take to install the system. It is of utmost importance to ensure that there is the correct power to the system at the right voltage. Most dust collection systems come with a pulse clean system that requires clean, dry compressed air, which is a requirement for installation.
The ductwork design and layout should be planned and budgeted for before selecting a dust collection system. It can affect numerous features that you choose when selecting the dust collector.
Certifications
Our Factory
We are professionally manufacturing of de-dusting systems and their parts as bag filters, de-sulfuration equipment, pneumatic transportation equipment, dust handling equipment, mechanical air cooling equipment and components in all different types and specifications. All these products are used widely in industry fields such as metallurgy, power, machinery, foundry, cement, chemical, food, etc..
HQCC has two workshops which cover an area about 50.000m2 with advanced machineries to satisfy the productions in different requirements.
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