-
Anonymous users2024-02-13A dust collector or dust removal equipment is a device that separates dust from flue gas. The bag filter, also known as the filter dust collector, is a dry high-efficiency dust collector, which is a dust removal device that uses a bag filter element made of fiber braid to capture solid particles in dust-containing gases. The principle of action is that the dust particles are intercepted by the inertial force when they collide with the fibers when winding the filter cloth fibers.
In pulse and air box pulse collectors, the dust is attached to the outer surface of the filter bag. When the dust-laden gas passes through the dust collector, the dust** collects on the outer surface of the filter bag, and the clean gas enters the inside of the filter bag through the filter material. The cage inside the bag is used to support the bag and prevent it from collapsing, while it helps to remove and redistribute the dust cake.
The fabric and design of the dust bag should be as efficient as possible, easy to peel off dust, and durable. The selection of dust bag is very important, it directly affects the dust removal effect of the dust collector, and the selection of dust bag is selected from the following aspects: gas temperature, humidity and chemistry, particle size, dust concentration, filtration wind speed, dust removal method and other factors.
The dust collector bag of the new environmental protection technology, especially a concave and convex folding dust bag. Among them, the cross-sectional shape formed by the combination of the inner frame and the outer frame is the concave and convex forming form of the relative angle of the periphery, and the whole formed by the dust bag filter material and the inner frame and the outer frame is a radially folded closed cylindrical structure. The utility model discloses a folding dust removal cloth bag that is simple in structure, easy to manufacture.
Under the premise of the same dust removal treatment air volume, because the folded dust bag effectively increases the filtration area, the volume of the dust collector is reduced, the floor space is saved, and the manufacturing investment of the equipment is saved. This kind of bag filter has a high purification and dust removal effect and a good cleaning and backflushing effect, and is conducive to prolonging the service life of the dust bag.
-
Anonymous users2024-02-12The materials of the dust bag are generally classified according to the temperature of the applicable working conditions, mainly as follows:
Room temperature dust removal cloth bag.
Polyester needle felt: suitable for steel mills, cement plants, coal mines and other industries three-proof polyester needle felt: suitable for steel plant blast furnace coal injection powder, cement plant, power plant coal conveying system and other polyester anti-static:
It is suitable for water and oil repellent and oilproof in flour mills, chemical plants, coal mines, cement mills, coal mills, etc.
Acrylic needle felt: suitable for waste incineration, asphalt, spray dryers, coal mills, power plants, etc
Suitable for chemical industry, garbage incineration, high-temperature liquid filtration and other complex working conditions PPS needle felt: suitable for filtering coal-fired boilers, garbage incinerators, power plant fly ash dust collection and other high-temperature dust removal bags.
P84 needle felt: suitable for coal-fired boilers, liquid bed boilers, waste incineration, asphalt plants, cement plants, waste incinerators, etc.
Flumex: suitable for steel, smelting, ferroalloys, chemicals, cement, calcium carbide, waste incineration, electric power, asphalt mixing, etc.
Metas: suitable for asphalt, cement, steel, non-ferrous metals, lime, dust, metallurgy, plastics, carbon black, coke, tobacco and other industries.
Glass fiber needle felt: suitable for dust removal bags in high-temperature flue gas industries such as steel, metallurgy, carbon black, power generation, cement, and chemical industry.
-
Anonymous users2024-02-11Dear, hello, I have inquired for you, the bag dust collector dust collector mountain pre-judgment answer; The bag filter is mainly used to filter the dust-containing gas with filter material (fabric or felt) to achieve the purpose of dust removal. The filtration process is divided into two stages, the dusty gas passes through the clean filter material, and the main role of filtration at this time is the retention of the filter material fibers. When the retained dust continues to increase, a part of the dust is embedded into the filter material, and a part is covered on the surface of the filter material to form a dust layer, which mainly relies on the dust layer to filter the dust-containing gas.
After the dust-containing gas enters the dust collector, the airflow velocity decreases, the larger particles in the smoke and dust are directly washed and precipitated to the ash hopper, and the rest of the dust particles are filtered through the filter bag from the outside to the inside, and the clean flue gas is discharged from the inside of the filter bag, and the fly ash is blocked in the filter bag.
-
Anonymous users2024-02-10Bag filter is a kind of environmental protection equipment, and its role is air pollution control. Filter dust exhaust gases.
The bag type dust collector is mainly composed of the upper box (clean air chamber), the middle box (dust chamber), the ash hopper, the pulse cleaning system, the filter bag, the filter bag skeleton, the air inlet and outlet, the differential pressure gauge, the manhole, the ash discharge device, and the PLC controller.
Bag FilterIt is suitable for capturing fine, dry, non-fibrous dust. The filter bag is made of textile filter cloth or non-textile felt, and the dust-containing gas is filtered by the filtration effect of the fiber fabric, when the dust-containing gas enters the bag filter, the dust with large particles and specific gravity settles down due to the action of gravity and falls into the ash hopper, and the gas containing finer dust is blocked when passing through the filter material, so that the gas is purified.
-
Anonymous users2024-02-09Well-known manufacturers of dust bags:
1. Botou Huaying environmental protection equipment.
The company is a dust removal equipment design and manufacturer, the company mainly produces coal-fired boiler dust collectors, pulse dust collectors, dust bag cages and other products, covering all kinds of dust removal equipment and accessories that users want.
2. Botou Futai equipment.
The company is located in Fuzhen Industrial Zone, Botou City, Hebei Province, with convenient transportation, Botou Futai Equipment is a dust collector company integrating R&D, design, manufacturing, sales and comprehensive services of dust collectors.
3. Hebei Leyu environmental protection equipment.
The company is an environmentally friendly enterprise dedicated to air pollution control such as dust removal, desulfurization and denitrification. With technical force, strict management team, strict testing methods, thoughtful service and perfect after-sales system, the company has developed into a comprehensive technology enterprise integrating design, production, sales and service.
4. Hebei Jiucheng Environmental Protection Project.
The company is located in Botou City, Hebei Province, which has the reputation of "the hometown of Yali pear", close to Beijing-Shanghai Railway Beijing-Shanghai Expressway and 104 National Highway in the east, and National Highway and Shihuang Expressway in the west.
5. Jiangsu Dongwang Environmental Protection Technology Group.
The company's main products are industrial filter cloth, dust filter bag, liquid filter cloth and filter bag, skeleton series products, dust collector series, electromagnetic pulse valve series, filter cartridge series products, etc. The products are widely used in power plants, iron and steel, metallurgy, copper and aluminum, cement, chemical industry, mining furnaces, carbon black asphalt mixing, heating, waste incineration, pharmaceutical, glass, oil refining industries, etc.
-
Anonymous users2024-02-08Our company produces high-temperature, medium-temperature and room-temperature dust removal bags, with complete specifications and models, and special specifications can be customized.
A dust collection hood is set up in each ash place, and the dust-containing gas is transported to the dust removal device through the pipeline gas path, in which the dust is collected in the dust removal device after the gas-solid separation is carried out, and the clean gas is introduced into the main pipe or directly discharged into the whole set of equipment into the atmosphere, that is, the dust removal system, and the dust collector is an important part of the system. From the perspective of ventilation and dust removal, dust is all solid small particles that can float in the air for a long time, and is a dispersion system, called aerosol, in which air is the dispersed medium and solid particles are the dispersed phase. A dust collector is a device that separates these small solid particles from aerosols.
Generally speaking, the main structure of the circular bag filter has three boxes: upper, middle and lower, as well as ash discharge mechanism and return system, etc., according to the different structural forms, there are many types, according to the filtration method can be divided into internal filter type and external filter type, according to the air inlet mode can be divided into upper air intake, lower air inlet, DC type, etc., according to the shape of the filter bag is divided into round and flat belt. Different types of bag dust collectors have basically the same dust removal principle, when the gas passes through the filter layer, the impurities and particles in the air flow remain in the filter layer, so as to achieve the effect of filtration.
High-temperature dust bag refers to the dust bag made of filter material made of P84 (polyimide), Nomex (Metas), PPS (polyphenylene sulfide), PTFE (polytetrafluoroethylene), glass fiber, basalt and other high-temperature resistant fibers, the common feature of high-temperature dust bag is that the high temperature resistance is good, the temperature resistance is more than 200 degrees, among which the basalt dust bag with the highest high temperature resistance can reach 350 °, and the high-temperature dust-resistant bag is generally chemically excellent. Among them, PTFE (also known as polytetrafluoroethylene) is the best, which can resist strong corrosion. >>>More
Elements that form the damage of the dust bag:
1. Incineration: The elements that form the incineration of the dust collector cloth bag are first of all the initial layer thickness of the dust removal bag and the temperature of the flue gas is too high. If the flue gas temperature processed by the dust collector for a long time exceeds the operating conditions of the bag, the dust bag will be hardened and shortened, or the hole will be abled. >>>More
Principle: The working principle of the bag filter.
After the dust-containing gas enters the ash hopper from the tuyere, a part of the coarser dust particles and the condensed dust mass fall directly due to the inertia and play the role of pre-dust collection. The air flow into the hopper turns upwards into the box, and as it passes through the filter bag with a metal skeleton inside, the dust is trapped on the outer surface of the filter bag. The purified gas enters the clean chamber at the upper part of the filter bag and is collected and discharged into the air outlet duct. >>>More