تماس فوری
In the modern industrial world, maintaining the health of the environment and controlling the suspended particles coming out of factories has become one of the main priorities of managers and engineers. Various industries such as cement, steel, pharmaceutical, food and mineral industries face a huge amount of dust and polluting gases every day. The release of these particles not only endangers the health of the workforce, but also damages expensive equipment and machinery and reduces production efficiency. Meanwhile, the use of industrial dust collectors and especially bag filters is known as the most efficient solution. The boom in the market selling all kinds of bag filters shows the increasing attention of industries to this vital tool.
Choosing the right filter requires a detailed understanding of the physical and chemical processes of the work environment. Pollutant particles are classified based on size, material, temperature and humidity, and each industry needs a specific type of filter fabric. With years of experience in designing and supplying industrial ventilation and filtration equipment, Aseman Abi Company has taken a big step towards improving environmental standards. With a deep understanding of market needs, this collection has facilitated the process of supplying and selling all kinds of bag filters with the highest engineering quality.
What is a bag filter and how does it work?
Filter bag or bag dust collector is a mechanical system that is used to separate suspended solid particles from gases or exhaust air of industrial processes. This equipment consists of a metal container in which a large number of fabric bags are placed vertically. The polluted air stream enters the chamber, passes through the fabric and the dust particles are trapped on the outer or inner surface of the bag. Finally, the clean and purified air exits from the top of the system.
The filtration process in these systems is based on four main mechanisms:
Over time, a layer of dust accumulates on the surface of the bags, which is called "dust cake". This layer initially increases the filtration efficiency, but increasing its thickness increases the pressure drop in the system. At this stage, cleaning systems come into play to maintain the effectiveness of the bag filter. Paying attention to these mechanisms shows why designing and selling all kinds of bag filters requires high engineering expertise and why Asman Abi company always emphasizes on detailed technical analysis before purchase.
Classification of fibers and materials in the sale of bag filters
One of the most important factors when deciding to buy is the choice of filter fabric. Different working conditions, including temperature, humidity, presence of acidic or alkaline gases, and type of particles, will determine the type of fibers. In the following, we will examine the most common raw materials used in this equipment.
1. Polyester bag filter
Polyester is the most widely used material in the sale of bag filters market. This material is an ideal option for general industries due to its excellent wear resistance, high mechanical strength and affordable price. Polyester bags withstand temperatures up to 135 degrees Celsius continuously. However, their biggest weakness is the lack of resistance to hydrolysis in the presence of humidity and high temperature. Cement, plaster and wood industries are major buyers of this type of filter.
2. Nomex or Aramid bag filter
For processes dealing with hot gases, polyester loses its effectiveness. In this scenario, Nomax fibers are the best option. These filters are able to withstand a continuous temperature of up to 200 degrees Celsius (and a momentary temperature of 220 degrees). Nomex has a very good resistance to wear and alkaline agents, but it is sensitive to strong acids and high humidity. Therefore, steel industries, iron smelting furnaces and asphalt factories are among the main markets for purchasing this product. Sales of all kinds of filter bags Nomex are carried out by Asman Abi company with a guarantee of the quality of the original material to ensure the stability of the production lines in harsh temperature conditions.
3. Fiberglass bag filter
If the working temperature of the process exceeds the power limit of Nomax and reaches the range of 260 degrees Celsius, fiberglass fibers enter the field. Fiberglass has excellent chemical resistance against acids and oxidants. However, due to the low flexibility and fragility of fibers against strong mechanical shocks, their installation and maintenance require special care. Usually, to improve the mechanical properties, these filters are combined with special membrane coatings such as Teflon (PTFE).
4. PTFE bag filter (PTFE / Teflon)
Teflon is the most resistant and expensive material in the filtration industry. These fibers have unparalleled chemical stability against the harshest acids, bases and solvents and can withstand continuous working temperatures up to 260°C without quality loss. The very low coefficient of friction of Teflon prevents wet or sticky dust particles from sticking to the surface of the bag and makes the cleaning process very simple. Asman Abi company, as a specialized authority for supplying equipment, has provided various options of these advanced fibers for petrochemical industries and waste incinerators.
5. Polypropylene bag filter
This material is designed for humid environments with low temperature (up to 90 degrees Celsius). Polypropylene has a unique resistance to hydrolysis and acid and alkali attacks. For this reason, it is widely used in chemical, wastewater treatment and pharmaceutical industries.
- Technical Consulting Department of Asman Blue Company:Incorrect choice of bag filter fabric can lead to premature rupture, severe drop in efficiency and irreparable damage to the suction system. The experienced experts of Aseman Abi company are ready to introduce the best and most economical option by carefully analyzing the exhaust gases and temperature conditions of your factory. To benefit from engineering services and exclusive orders, visit the official website of Asman Abhi Company.
Bag filter cleaning mechanisms and its effect on bag life
One of the key parameters that determine the efficiency of dust collection systems is how to clean the particles accumulated on the bags. Filtration systems are divided into three main categories based on the cleaning mechanism:
Mechanical Shaker System
In this old method, the top of the bags is connected to a moving frame, which, with mechanical oscillation and shaking, separates the dust particles from the surface of the fabric and pours them into the hopper. In these systems, the filtration process must be temporarily stopped for cleaning. This method is less used today due to the high depreciation of the bags.
Reverse Air Flow System
In reverse flow bag filters, the bags are located in separate compartments. For cleaning, the main air flow is cut off and the clean air flow enters the system in the opposite direction. This causes the gentle collapse of the dust layer and its fall into the hopper. This method is the gentlest way of purification and greatly increases the life of the bags, but it requires more installation space.
Pulse Jet System
The most advanced and popular cleaning system is the jet pulse method. In this mechanism, a stream of compressed air with high pressure (usually between 4 and 6 bar) is shot into the opening of the filters through solenoid valves. This sudden pulse creates a vibration wave along the length of the bag and separates the dust cake in a fraction of a second. Jet pulse systems perform the cleaning process online without the need to turn off the entire dust collector.
In the process of selling types of bag filters, the compatibility of the filter fabric with the type of cleaning system is of great importance. For example, non-woven fabrics (Needle Felt) perform best in pulse jet systems, while for reverse air dust collectors, woven fabrics provide a more stable structure. Analyzing the type of dust collector, the experts of Asman Abi company suggest the most compatible product to minimize the costs of periodic replacement.
Why Asman Blue Company is a reliable reference for selling all kinds of bag filters?
The supply market for industrial dust collectors is full of different options, but finding a product that passes global standards and has long-term performance has always been a concern of large industries. Relying on the technical knowledge of domestic experts and using the world's latest technologies, Aseman Abi Company has been able to gain a special position in the supply and sale of all kinds of bag filters.
Quality assurance of raw materials
The Blue Sky company, by supplying high-quality fibers and fabrics from the most reliable global supply chains, ensures that the final products do not lose their efficiency in the harshest environmental conditions, including high temperature and extreme humidity. All the needle felt fabrics used have uniform density and standard air permeability.
Exclusive design and sewing based on customer order
Bag filter systems have different structures; The difference in the diameter of the opening, the length of the bag and the type of holding rings (filter bag basket) requires that the sewing process be done with millimeter precision. Asman Abhi company is equipped with automatic and semi-automatic sewing lines that produce filters with completely customized dimensions and without the slightest defect in the seams.
Continuous after-sales service and technical support
Asman Blue Company's commitment does not end with the delivery of goods. By providing installation monitoring services, periodic troubleshooting of industrial dust collection systems, and providing advice on air flow optimization, this group always stands by its customers to ensure uninterrupted operation of ventilation systems.
- Mission Statement of Asman Blue Company:We believe that clean air is the inalienable right of future generations and one of the main pillars of sustainable development. By purchasing from Asman Abhi company's portfolio of products and services, besides reducing the emissions of your factories, you will contribute greatly to improving the health of society and maintaining environmental standards. To receive technical brochures and register a request for a visit to your industrial site, contact our experts through the website.
Principles of maintenance and methods of increasing the life of bag filters
Buying and installing a quality filter is only half the way; Maintaining the effectiveness of the bag filter over time is highly dependent on proper maintenance protocols. Failure to comply with these principles can reduce the useful life of filters from a few years to a few weeks. In the following, we have discussed the most key maintenance methods:
System pressure drop control
Operators must monitor the pressure difference between the inlet and outlet of the dust collector on a daily basis (Differential Pressure). Normal pressure drop is usually between 750 and 1500 pascal. A sudden increase in pressure drop indicates blinding or jet pulse system failure, while a very low pressure drop usually indicates a rupture of one of the bags.
Accurate adjustment of compressed air pressure in the jet pulse system
The air pressure sent for cleaning must be properly calibrated. Very high pressure can tear the fabric fibers apart and cause tears near the filter collar. On the other hand, very low air pressure will not be able to completely clean the dust cake, which will greatly reduce the filtration efficiency.
preventing the temperature from reaching the dew point
When the temperature of the exhaust gases falls below the dew point, the moisture in the gases condenses on the surface of the filter. This moisture combines with the dust to form a muddy, impermeable layer that, once dry, renders the bag completely unusable. Insulating the body of the filter bag and controlling the inlet temperature is one of the best ways to prevent this problem.
Periodic inspection of cages
Filter bags are installed on metal baskets so that they do not crumple under air pressure. The presence of any rust, sharp edges or non-standard welds on the baskets can damage the inner texture of the fabric and cause it to tear quickly. In addition to selling all kinds of bag filters, Asman Abi Company also offers high-quality storage baskets with galvanized and steel covers to ensure the health of the filters.
Summary and guide for ordering bag filter
Controlling industrial pollution and having clean air in the workplace is not only a legal requirement from environmental organizations, but also an indication of social responsibility and an effort to increase the production efficiency of factories. Using standard and high-quality bug filters is the most effective way to achieve this great goal.
The buying and selling process of bag filters requires a detailed, engineered and comprehensive look at several variables such as temperature, humidity, type of dust and the type of cleaning system. By providing a complete set of modern industrial fibers such as polyester, nomex, fiberglass and teflon, Aseman Abi Company has taken great steps in localizing and improving the quality of these products. This company, relying on its creative engineering team and advanced production lines, will guarantee the durability, stability and high efficiency of your filtration systems.
If you are looking to optimize your factory's dust collectors or plan to replace worn-out systems with new generation and resistant filters, act today. Technical experts of Aseman Abi Company are ready to accompany you in choosing the most suitable options by providing detailed engineering advice and technical calculations. To get more information, check the product catalog and register exclusive orders, you are invited to visit the official website of Asman Abhi Company and register your request in the customer communication section so that our experts will contact you as soon as possible to provide services. Tomorrow's air quality is the result of your smart choice today.