Products
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The DMK – 4CS – 14 pulse controller
This is a Pulse Cleaning Controller, model DMK – 4CS – 14, produced by a Shanghai – based company (SHANGHAI AASS TECHNOLOGY CO., LTD). It is often used in equipment like bag – type dust collectors. By sending out pulse control signals, it cleans filtering components (such as filter bags) at set times or as needed, ensuring the continuous and efficient operation of the dust removal system.
Key information:- Power Supply: Supports AC 185V – 264V, 50 – 60Hz alternating current, with an output of DC 24V/1A.
- Functions: The panel has a display window and operation buttons. It can set parameters related to ash cleaning (such as pulse width, interval, etc.), enabling automatic or manual ash – cleaning control to maintain the filtering performance of dust – removal equipment.
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The DMK – 4CS – 14 controller
The DMK – 4CS – 14 controller has a built – in specific control program. Through the buttons and display window on the panel, the operator can set parameters related to cleaning, such as the pulse interval time (the time interval between two jets) and the pulse width (the duration of each jet). After setting the parameters, the controller will send out electrical signals regularly according to the set logic.Solenoid Valve Driving
When the controller sends out an electrical signal, the signal will be transmitted to the connected pulse solenoid valve. The pulse solenoid valve is a key executive component in the cleaning system. Before receiving the electrical signal from the controller, it is in a closed state, cutting off the path of compressed air. When receiving the electrical signal, the solenoid valve opens quickly, allowing compressed air to pass through.Compressed Air Jet
Compressed air is usually provided by an air source device (such as an air compressor) and is stored and stabilized by an air storage tank to ensure that there is compressed air with sufficient pressure and flow. When the pulse solenoid valve is opened, the compressed air will pass through the orifice on the injection pipe at a very high speed, forming a powerful pulse air flow.Filter Bag Cleaning
These high – speed pulse air flows are directly injected into the interior of the filter bag. Under the action of the pulse air flow, the filter bag will expand instantaneously, generating an outward tension. Since there are dust and other impurities attached to the surface of the filter bag, under the expansion of the filter bag and the impact of the air flow, the dust attached to the surface of the filter bag will be shaken off and fall into the ash hopper below, thus realizing the cleaning of the filter bag, restoring the filtering performance of the filter bag, and ensuring the continuous and efficient operation of the dust removal equipment. -
What is the cleaning principle of the DMK-4CS-14 controller?
The DMK – 4CS – 14 pulse cleaning controller is mainly used to control the pulse jet cleaning system. Its cleaning principle is based on the following key links:
Signal Control
The DMK – 4CS – 14 controller has a built – in specific control program. Through the buttons and display window on the panel, the operator can set parameters related to cleaning, such as the pulse interval time (the time interval between two jets) and the pulse width (the duration of each jet). After setting the parameters, the controller will send out electrical signals regularly according to the set logic.Solenoid Valve Driving
When the controller sends out an electrical signal, the signal will be transmitted to the connected pulse solenoid valve. The pulse solenoid valve is a key executive component in the cleaning system. Before receiving the electrical signal from the controller, it is in a closed state, cutting off the path of compressed air. When receiving the electrical signal, the solenoid valve opens quickly, allowing compressed air to pass through.Compressed Air Jet
Compressed air is usually provided by an air source device (such as an air compressor) and is stored and stabilized by an air storage tank to ensure that there is compressed air with sufficient pressure and flow. When the pulse solenoid valve is opened, the compressed air will pass through the orifice on the injection pipe at a very high speed, forming a powerful pulse air flow.Filter Bag Cleaning
These high – speed pulse air flows are directly injected into the interior of the filter bag. Under the action of the pulse air flow, the filter bag will expand instantaneously, generating an outward tension. Since there are dust and other impurities attached to the surface of the filter bag, under the expansion of the filter bag and the impact of the air flow, the dust attached to the surface of the filter bag will be shaken off and fall into the ash hopper below, thus realizing the cleaning of the filter bag, restoring the filtering performance of the filter bag, and ensuring the continuous and efficient operation of the dust removal equipment.In short, the DMK – 4CS – 14 controller precisely controls the opening and closing of the solenoid valve and uses compressed air pulses to impact and shake the filter bag, thereby removing the dust on the surface of the filter bag and completing the cleaning process. -
Unveiling the Filter Cartridge: A Silent Guardian in Filtration Systems
In the intricate world of filtration, whether for water purification, air handling, or industrial fluid processing, the filter cartridge stands as an unsung hero. These unassuming cylindrical components, like the ones pictured, play a pivotal role in maintaining the purity of substances flowing through systems.Filter cartridges boast a cleverly engineered pleated structure. This design isn’t just for show – the folds maximize the surface area available for filtration, allowing them to trap everything from tiny sediment particles in water to airborne dust in ventilation systems. In water treatment, they act as the first line of defense, sifting out rust, sand, and organic impurities that could compromise water quality. In industrial settings, they shield expensive machinery from damaging contaminants, ensuring smooth operations and reducing maintenance costs.Beyond water, their versatility shines in air filtration too. HVAC systems rely on them to clean incoming air, removing pollutants that affect indoor air quality. Even in specialized fields like pharmaceutical manufacturing, where precision is paramount, filter cartridges ensure fluids and gases meet stringent purity standards.Though their form is simple, their impact is profound. They quietly safeguard our daily water supply, keep industrial processes running efficiently, and contribute to healthier indoor environments. The filter cartridge, a testament to engineering ingenuity, proves that even the smallest components can have a giant role in our interconnected systems of health, industry, and daily life. -
The Secret of the “Little Guardian” in Water Treatment —— Filter Cartridge
In industrial and daily – life scenarios such as water treatment and air purification, there is a type of component that seems ordinary but is of crucial importance. It is the filter cartridge, also often referred to as the filter element or filter (filter cylinder).In terms of appearance, the filter cartridge is mostly in a simple cylindrical shape, just like what is shown in the picture. Its unique pleated structure should not be underestimated. This design greatly increases the filtration area, enabling it to function more efficiently. Whether it is intercepting impurities such as sediment, rust, and colloid in water in a water treatment system, or capturing dust and particulate matter in air filtration, the filter cartridge is a “little guardian” silently protecting cleanliness.The application scenarios of filter cartridges are very extensive. In households, the filter cartridge in a water purifier ensures the cleanliness of daily drinking water; in industrial production, it supplies clean fluid for various production equipment, preventing impurities from damaging precision components and affecting the production process. Different usage scenarios have different requirements for the material, precision, etc. of the filter cartridge. Some need to be high – temperature resistant, while others need to have super adsorption capacity to intercept tiny pollutants.Under its simple appearance, the filter cartridge undertakes a key mission. With its ingenious design and suitable material, in fields such as water treatment and air purification, it intercepts pollutants for us, safeguards the cleanliness of fluid, and is a behind – the – scenes hero ensuring the orderly operation of production and life, always interpreting the value of “small size, great function”. -
The collaborative work of dust removal filter bags and filter cages
The collaborative work of dust removal filter bags and filter cages
The dust removal filter bags and filter cages, as the core components of the dust removal system, work together to ensure the efficient and stable operation of the dust removal system. The filter cages provide solid support for the filter bags, ensuring that the filter bags maintain a stable shape under complex working conditions; the filter bags, relying on their excellent filtering performance, effectively intercept dust particles. Only when the two components are matched and their performances are coordinated can the dust removal system maximize its effect, reduce operating costs, and minimize dust pollution.
In practical applications, the materials, structures, installation, and maintenance of the dust removal filter bags and filter cages should be selected reasonably based on specific working conditions. At the same time, with the increasingly strict environmental requirements and the continuous development of industrial technology, higher performance requirements have been put forward for the dust removal filter components, driving the dust removal filter bags and filter cages towards higher efficiency, longer lifespan, and better resistance to harsh working conditions. For example, the development of new composite filter materials has improved the filtering efficiency and temperature and corrosion resistance of the filter bags; the structural optimization of the filter cages has further reduced weight, improved strength and corrosion resistance.In conclusion, a thorough understanding of the characteristics, collaborative working mechanism, and maintenance points of the dust removal filter bags and filter cages is of great practical significance for optimizing the design of industrial dust removal systems and improving the level of dust control. It helps to promote industrial production towards a more environmentally friendly and efficient direction.
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Filter cage: The solid support for dust removal filter bags
The filter cage, also known as the filter bag frame, is an important component that supports the dust removal filter bags. Its main function is to maintain the shape of the filter bags and prevent them from deforming or being damaged due to force during filtration and dust cleaning. At the same time, it provides a smooth passage for the airflow. The quality and design rationality of the filter cage directly affect the service life of the filter bags and the operational stability of the dust removal system.
Structure and Material
The filter cage is usually in a circular or elliptical frame structure, welded by longitudinal and transverse ribs. It has a lifting cap or flange at the top, making it easy to install and fix. The number and diameter of the longitudinal and transverse ribs are determined according to the size of the filter bag and the working pressure to ensure that the filter cage has sufficient strength and rigidity.
The selection of the material for the filter cage needs to consider factors such as corrosion resistance, strength, and cost. Common materials include ordinary carbon steel, galvanized steel wire, and stainless steel. Ordinary carbon steel has a lower cost but poorer corrosion resistance, suitable for dry and non-corrosive environments; galvanized steel wire is treated with surface galvanization, improving corrosion resistance, and is widely used; stainless steel has excellent corrosion resistance and strength, suitable for harsh environments with high corrosion, but has a relatively higher cost.
Surface treatment process
To further enhance the corrosion resistance and service life of the filter cage, surface treatment is usually carried out. Common surface treatment processes include galvanization, powder coating, and chrome plating. Galvanization involves immersing the filter cage in molten zinc liquid to form a zinc coating on its surface, providing corrosion protection; powder coating involves spraying plastic powder on the filter cage surface and curing to form a uniform plastic coating, with good corrosion resistance and decorative properties; chrome plating forms a hard, wear-resistant, and corrosion-resistant chromium coating on the filter cage surface, suitable for occasions with high surface performance requirements.
Compatibility and Function with Filter Bags
The compatibility and function of the filter cage and the dust removal filter bags are crucial. The dimensions of the two must be precisely matched to ensure that the filter bags can be tightly fitted on the filter cage, preventing them from shaking or falling off during operation. The surface of the filter cage should be smooth without burrs to prevent scratches on the filter bags.
During the operation of the dust removal system, the functions of the filter cage are as follows:
Supporting filter bags: In the filtration state, the interior of the filter bag is negative pressure, and the filter cage can support the filter bag to prevent it from being sucked flat; in the dust cleaning state, the filter bag will expand, and the filter cage can limit the excessive expansion of the filter bag to avoid damage to the filter bag due to excessive stretching.
Ensuring smooth airflow: The structural design of the filter cage provides a passage for the airflow, allowing clean gas to pass through the filter bag smoothly and be discharged, reducing air resistance.
Extending filter bag life: By stabilizing the shape and position of the filter bag, reducing wear and tearing of the filter bag, and thus extending the service life of the filter bag.
Maintenance and Care -
Glass fiber filter bag: Multi-layer composite structure helps achieve efficient filtration
Modern medium-efficiency bag filters made of glass fiber usually adopt a carefully designed multi-layer composite structure. Each layer of material plays a unique role, jointly ensuring efficient filtration and long-term use.
(1) Base layer: The core of filtration
The base layer is made of non-woven fabric formed by needle-punching fine-diameter glass fibers. It is the main part of the filtration. The fineness, porosity and thickness of the fibers in this layer have a direct impact on the filtration accuracy and dust holding capacity. The thickness of high-quality glass fiber needle-punched felt is generally controlled at 1.8 – 2.5mm, and the air permeability is between 80 – 120L/m²·s. Fine-diameter glass fibers formed by needle-punching form a three-dimensional network structure, which can effectively intercept most particulate matter. The finer fiber diameter helps to improve the capture efficiency of fine particulate matter, but it will correspondingly increase the initial resistance. Therefore, in practical applications, the fiber diameter and other parameters need to be optimized according to the dust characteristics and system air volume to achieve the best filtration effect.
(2) Reinforcement layer: Enhancing strength and stability
The reinforcement layer usually uses high-strength glass fiber mesh fabric or polyester base fabric, with a weight of 80 – 120g/m². It is usually placed between or on one side of the base layer. The existence of this layer significantly enhances the tensile strength and dimensional stability of the filter material. Relevant test data show that adding the reinforcement layer can increase the breaking strength of the filter material by 50% – 80%. In industrial dust removal systems, pulse cleaning is a common cleaning method, and the filter bags need to withstand the mechanical stress of the pulse airflow. The addition of the reinforcement layer enables the filter bags to better resist such mechanical stress, effectively preventing the bags from cracking, deforming, etc. during cleaning, and prolonging the service life of the filter bags, ensuring the normal operation of the dust removal system.
(3) Surface treatment layer: Improving surface properties
The surface treatment layer applies chemical agents such as PTFE or silicone oil by immersion or spraying to improve the surface properties of the filter material. The common addition amount of the treatment agent is 5% – 15% of the filter material weight. After treatment, the water repellency angle of the filter material can reach above 130°, and the dust shedding rate increases by 30% – 50%. Glass fibers have the disadvantages of high brittleness and poor bending resistance. The surface treatment technology effectively solves these problems. For example, PTFE immersion treatment can make the polytetrafluoroethylene emulsion penetrate the surface of the fibers, forming a micrometer-level coating, which not only significantly improves the flexibility and chemical stability of the filter material, but also raises the usage temperature of the filter material to 280℃, while reducing the surface energy and making the dust accumulation easier to remove; silicone oil treatment can also improve the surface properties of the filter material to some extent, enhancing its anti-fouling ability.
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Glass fiber filter bags: The backbone of industrial dust removal
Among the numerous stages in industrial production, dust pollution has always been a pressing issue that needs to be addressed urgently. From the kilns in cement manufacturing to the blast furnaces in steel smelting, a large amount of dust is discharged along with the exhaust gas, causing severe pollution to the environment and posing a threat to the health of workers. In this battle against dust, fiberglass filter bags, with their outstanding performance, have become a pillar in the field of industrial dust removal.
Foundation laid by superior performance
The main material of fiberglass filter bags is glass fiber, which endows the filter bags with many excellent characteristics.(1) Outstanding high-temperature resistance
The softening point of glass fiber is as high as 550℃, and its strength retention rate exceeds 90% even when used for a long time at 260℃. Through thermogravimetric analysis (TGA), it can be seen that glass fiber shows no significant quality loss before 500℃, while polyester fiber begins to decompose at around 250℃. This characteristic enables fiberglass filter bags to easily handle high-temperature smoke gas of up to 260℃ in industries such as steel and cement, operating stably in high-temperature environments and continuously exerting filtering effects without deformation or damage due to excessive temperature, thus ensuring the continuity of industrial production.
(2) Strong chemical inertness, corrosion resistance
Glass fiber is resistant to acid and alkali corrosion within the pH range of 2 – 11. It maintains good stability in acidic gas environments such as SOx and NOx. Relevant experiments show that after exposing the fiberglass filter material to 50% sulfuric acid mist for 48 hours, its strength retention rate remains above 85%, while polypropylene fiber has completely degraded at this time. This strong corrosion resistance makes fiberglass filter bags an ideal choice for industries with corrosive environments such as chemical and metallurgical industries. Even in harsh working conditions filled with various corrosive gases and chemicals, they can operate stably for a long time, effectively filtering dust, extending their service life, and reducing the cost of replacing filter bags for enterprises.
(3) Excellent electrical performance, anti-static
The volume resistivity of glass fiber is between 10¹² – 10¹⁴Ω·cm, effectively preventing static electricity accumulation. In industrial production, many dusts such as coal dust and aluminum powder are flammable and explosive. If the filter bag cannot effectively prevent static electricity, the resulting static sparks are likely to trigger explosion accidents. In contrast, the volume resistivity of polyester fiber is approximately 10⁹Ω·cm, more prone to generating static electricity. The anti-static characteristic of fiberglass filter bags provides safety guarantees for industrial production in flammable and explosive dust environments, significantly reducing safety risks.
(4) Deep filtration, high dust retention capacity
Fiberglass filter bags mainly rely on mechanical interception and diffusion deposition effects of the fiber mesh for deep filtration. Unlike coated filter materials that mainly perform surface filtration, fiberglass needle-punched felt has a higher dust retention capacity and a gentler resistance growth curve. In actual industrial applications, dust concentrations often fluctuate, and fiberglass filter bags can maintain stable filtering performance under fluctuating dust concentrations in such conditions, without a significant drop in filtration efficiency or a sharp increase in resistance due to short-term increases in dust volume, ensuring the stable operation of the dust removal system.
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Nylon Water Filter Bag: Unmatched Performance Opens a New Era of Filtration
In today’s era of evolving water filtration technology, the nylon water filter bag stands out with its unique advantages, becoming the ideal choice for many industries to achieve efficient water filtration.
Nylon, as the core material for making filter bags, possesses numerous excellent properties. The high strength of nylon ensures that the filter bags have excellent mechanical performance, enabling them to withstand significant water pressure without being damaged. Additionally, its wear resistance, chemical resistance, and water resistance are all outstanding. When dealing with complex water quality environments, such as industrial wastewater containing acidic or alkaline substances, nylon water filter bags can perform stable filtration work thanks to their chemical corrosion resistance, without being affected by chemical substances and thus not shortening their service life.
The filtration accuracy range of nylon water filter bags is quite wide, typically ranging from 20 microns to 1000 microns. This diverse range of accuracy options meets the needs of different industries and different filtration stages. In some occasions where water quality requirements are relatively low, such as the pre-treatment of industrial wastewater, larger precision nylon water filter bags can quickly and effectively intercept large particles of impurities, such as sand and large suspended solids, laying the foundation for subsequent more precise treatment steps. In fields with extremely high water quality requirements, such as ultra-pure water production in the electronics industry and sterile water production in the pharmaceutical industry, smaller precision nylon water filter bags can precisely filter out microorganisms, bacteria, tiny particles, and colloids, ensuring that the produced water meets strict standards.
From the perspective of manufacturing process, nylon water filtration bags are usually made by precisely weaving nylon single filaments and processing them with special auxiliary materials. The weaving structure is tight and uniform, ensuring the stability and consistency of the filtration bag during the filtration process. Moreover, the surface of the nylon single filaments is smooth, which not only enables the liquid to pass through the filtration bag smoothly, improving the filtration efficiency, but also makes the impurities intercepted not easily adhere to the surface of the filtration bag. When cleaning is needed, the impurities can easily fall off, greatly enhancing the convenience of cleaning, and thus enabling the filtration bag to be reused multiple times, reducing the long-term usage cost.
In terms of practical application, nylon water filtration bags play a significant role in various industries. In the food and beverage sector, they are involved in the production of juices, edible oils, and wine. In juice production, they remove larger particles such as pulp during the coarse filtration stage, ensuring the smooth progress of the production process. Subsequently, in the fine filtration stage, they can also filter out small gelatinous particles, thereby improving the quality and taste of the juice. In the wine-making process, after initially filtering out impurities such as wine residue, nylon water filtration bags can further filter before bottling to prevent microbial contamination and extend the shelf life of the wine.
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Nylon water filter bag: Highly efficient filtration, safeguarding water quality
In the field of water treatment, efficient filtration equipment plays a crucial role in ensuring the purity of water quality. The nylon water filter bag, as a highly performing filtration product, is widely used in various water filtration scenarios.
The nylon water filter bag is made of high-strength nylon material and its unique weaving process gives it many advantages. Firstly, its excellent compressive strength ensures that it does not deform even under high water pressure, maintaining a stable filtration effect. Whether in large-scale water treatment in industrial production or small-scale filtration systems in households, this stability is of vital importance.
Secondly, the surface of the nylon water filter bag is smooth, which makes it easy to clean. When the filter bag traps a large amount of impurities, simply rinsing or using an appropriate cleaning method can quickly restore its filtration performance, and it can be reused. This not only significantly reduces the usage cost but also aligns with the environmental protection concept.In terms of filtration accuracy, the nylon water filter bag can meet different requirements. It usually has multiple precision specifications available, ranging from coarse filtration to a certain degree of fine filtration. In some less stringent pre-filtration stages, such as the preliminary treatment before industrial wastewater discharge, the nylon water filter bag can quickly intercept large particles in the water, such as sand, fibers, and plastic blocks, reducing the burden on subsequent deep treatment. In some scenarios with higher water quality requirements, such as the initial filtration stage in the preparation of ultra-pure water for electronic industries, it can also play an important role in filtering out residual tiny particles, colloids, and other impurities, ensuring that the water entering the subsequent treatment process meets certain standards.
In practical application scenarios, the nylon water filter bag demonstrates strong applicability. In the pre-filtration stage of water treatment, whether in municipal sewage treatment plants for the initial treatment of raw water or in industrial internal circulation water systems for impurity removal, the nylon water filter bag can work efficiently. In the petrochemical industry, it can be used to treat various wastewater produced during the production process, ensuring that the discharged water meets environmental protection requirements, and can also filter some process water for use in subsequent treatment processes, ensuring the smooth operation of production.
In the light industry, food and beverage sectors, the nylon water filter bag is indispensable. For example, in the juice production process, it can remove large particles such as pulp and residue in the coarse filtration stage, ensuring the smoothness of the subsequent production process. In wine brewing, it can remove impurities such as wine residue in the initial filtration stage, improving the quality of the wine.
In addition, in solid-liquid separation and treatment in fields such as metallurgy, electronics, and pharmaceuticals, the nylon water filter bag also has wide applications. In the water treatment process of the biopharmaceutical industry, it can filter out possible micro-impurities such as microorganisms and bacteria in the water, providing pure water for drug production, ensuring the quality and safety of drugs.
The nylon water filter bag, with its outstanding performance, wide applicability, and good cost-effectiveness, has become a highly favored filtration product in the water treatment field, safeguarding every drop of pure water for us. -
Water Filtration Bags: Innovation and Practical Guide
In the ever-evolving wave of water treatment technology, water filtration bags have always held a significant position. As an efficient and convenient filtering device, the technological innovation of water filtration bags has never ceased, providing better solutions for various water treatment needs in different industries.
Today, water filtration bags have made more breakthroughs in materials. Besides the traditional polypropylene, polyester, etc., new composite materials of water filtration bags have emerged. These composite materials combine the advantages of multiple materials, not only improving the filtration accuracy but also enhancing the temperature resistance, acid and alkali resistance, etc., allowing water filtration bags to function in more complex environments. For example, some composite material water filtration bags can maintain stable filtration effects at high temperatures, meeting the special needs of high-temperature industrial wastewater treatment.
In terms of structural design, water filtration bags have also seen significant improvements. Previously, water filtration bags were mostly simple bag-shaped structures, while now there are multi-ridged designs of water filtration bags. This design increases the filtration area, enhances the pollutant-capturing capacity, prolongs the service life of water filtration bags, reduces the replacement frequency, and saves costs for enterprises. At the same time, some water filtration bags adopt interface designs with better sealing performance, avoiding leakage during the filtration process and ensuring the stability of the filtration effect.
The application of water filtration bags cannot be separated from the correct usage methods. When choosing water filtration bags, one should select the appropriate material and precision based on water quality conditions and filtration requirements. When installing water filtration bags, ensure proper installation and good sealing to avoid affecting the filtration effect due to improper installation. During use, regularly check the usage status of water filtration bags. When the filtration efficiency decreases or the pressure difference increases, replace the water filtration bags in time to ensure the normal operation of the water treatment system.
In addition, the maintenance and care of water filtration bags are also very important. For washable water filtration bags, follow the correct methods for cleaning to remove impurities on the surface and restore their filtration performance. For disposable water filtration bags, do a good job in waste disposal to avoid environmental pollution.
With the continuous improvement of environmental awareness, water filtration bags play an increasingly important role in water resource recycling. Efficient water filtration bags can treat industrial wastewater, domestic sewage, etc., and reuse them, improving water resource utilization and reducing sewage discharge, contributing to the environmental protection cause.
In conclusion, water filtration bags, with their continuous technological innovation and practical performance, have a very broad application prospect in the field of water treatment. Correct selection, use, and maintenance of water filtration bags can make them function better, providing better water quality guarantees for our production and life.