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Bag filter equipment of the new features come out
2013-01-27
bag filterToday we want to introduce you to a brand new bag filter device, its function and compared to the previous equipment has improved a lot.The rapid development of modern science and technology, in order to meet the various purification needs, a new type of multi-function filter equipment - bag filter came into being, this device is composed... bag filterToday we want to introduce you to a brand new bag filter device, its function and compared to the previous equipment has improved a lot.The rapid development of modern science and technology, in order to meet the various purification needs, a new type of multi-function filter equipment - bag filter came into being, this device is composed of two parts by the filters and filter, and is now widely applied to water, oil, liquid purification as well as chemicals, textiles, pharmaceuticals, machinery, printing and dyeing, food industry, solid-liquid separation.One bag filtration equipment filtration principleThe liquid to be filtered flows from the filter inlet, through the filter seeped from the outside to the filter layer, the liquid in this process gradually becomes clear, is discharged from the outlet, wherein the impurity to be intercepted in the deep and surface of the filter, thus completing the entire filtration procedure.Second, the filter installation method1, the O-ring in the bag filter were wet, and then the filter slowly inserted vertically, the depth of insertion of the circular groove to the stainless steel;2, the filter portion of the fin with a stainless steel orifice plate fixed, and does not need to be fixed too tight, in order to avoid the high temperature conditions such that the filter variant;3, avoid directly touching any filter;4 pair filter rinse before using the filter to make;5, when turned on or off, slowly turn the valve, the speed is not too fast to avoid being sucked under high temperature deflated. View Details
High efficiency air filter bags in the main application
2012-12-26
High efficiency air filter bag are an air filter bag, which is characterized by high filtration precision, resistance, and high cost, is an important essential supplies industry clean one.The air filter bag is the complete detachment of air pollution particles. It further air purification used in place of air pollution in many industrial plant... High efficiency air filter bag are an air filter bag, which is characterized by high filtration precision, resistance, and high cost, is an important essential supplies industry clean one.The air filter bag is the complete detachment of air pollution particles. It further air purification used in place of air pollution in many industrial plants with less stringent requirements than the air purifier. Air filtration technology is a comprehensive technology gradually formed in the past century with the development of science and technology and contemporary industrialization, air filter bag in a modern industrial plant air conditioning, ventilation dust and other areas of universal application.In recent years, the research and development of the filter with air filtration technology, the development of studies on the mechanism of filtration and filtration equipment applications received larger development, has played a significant role in promoting the development of high efficiency air filter bags, The paper focused on the main application of high efficiency air filter bags in industrial plants. Industry cleanDifferent manufacturers of air quality requirements vary greatly. Control system equipped with a fume hood and purification Health companies need the addition of a small amount of air, if these factory environment has been contaminated, then sent to the plant internal air will increase when the first through the air filter bag. Especially in the semiconductor manufacturing and pharmaceutical industries, require a higher air cleanliness. In general conventional work environment, containing 500,000 particles per cubic foot of air, while the latest requirements of semiconductor production per cubic foot of air as long as a particle. Therefore, the workplace needs to clean air filter baged through HEPA filter continuous loop filter. In order to maintain the cleanliness and life of the HEPA filter, the front is still filtering through the early effect and in effect.Require continuous industrial clean room and to effectively remove the particle size of smaller particles. HEPA filter once for the end of the wind filter terminal ULPA filter is the most high-precision, ultra-efficient filter  They generally use a fine glass fiber filter media, film and electrostatic enhanced media has been the scope of penetration, and with the application of part of the experiment, and has made good progress.To deal with emissions from production plants, the most demanding poison gas. Certain heavy metals such as mercury, arsenic, chromium, beryllium is very toxic, very strict emissions limits. In the air poison gas processing, the United States and Germany have adopted a new, more stringent legislative acts, air poison gas restrictions from 20mg/m3 (scale) is reduced to 010004mg/m3 (scale). To reach this stringent requirements, production companies need to be more advanced and efficient filter to remove the poison gas microparticles. Some German companies use traditional folding fine glass fiber HEPA filters used in filtration systems complement each other, with pulse air purifier, and achieved good results. A U.S. company through the design of tubular micro glass fiber HEPA filter Youxiang a step forward. Efficiency filter will be used by the industry clean with the pace of technology development of modern science and technology towards higher precision, smaller filtration resistance, the use effect is more obvious aspects to develop. View Details
Major role in the processing of radioactive emission
2012-12-26
Radioactive waste are relatively large gas human harmfulness its processing method becomes more important, so the current in the industry are generally optional air filter bag to be processed, hereinafter will highlight a major role on a variety of air filter bags. .Many radioactive exhaust gas purification technology: the exhaust gas purifica... Radioactive waste are relatively large gas human harmfulness its processing method becomes more important, so the current in the industry are generally optional air filter bag to be processed, hereinafter will highlight a major role on a variety of air filter bags. .Many radioactive exhaust gas purification technology: the exhaust gas purification method used: filtration, adsorption, washing, stranded decay. The exhaust gas purifying apparatus used: Filters: air inlet pre-filter (for air intake airflow dust filtration efficiency of at least 85%) of exhaust pre-filter (located before the high efficiency particulate air filter bags for removal of coarse dust in the gas stream , to improve the service life of the high efficiency particulate air filter bag, a filtration efficiency of at least 85%) of the high efficiency filter (used to trap the fine particles of dust in the gas stream, the filtration efficiency of at least 95%) of high efficiency particulate air filter bag (absolute filter HEPA used to trap the ultra-fine dust particles in the exhaust gas, the removal efficiency of particles of particle size <0.3μm,> 99.97%) iodine filter (iodine adsorption is usually 1% KI impregnated activated carbon as a medium, the removal rate of the elemental iodine is reachable 99.9%, of organic iodine removal rate of up to 99%) of other types of filters (bag filters, sintered metal filters, ceramic candle-shaped filter, ruthenium filter).According to exhaust characteristics, select the appropriate technology for purification, to meet the standards, are allowed to discharge into the atmosphere. Secondary waste generated by the exhaust gas purification process (such as waste filter core, waste activated carbon, waste filter bags, etc.) should be reasonably up to as little as possible.The exhaust gas purification system should prevent leakage. Smoke charcoal, oil accumulation of smoke exhaust gas cleaning system, should prevent blasting accidents. Stranded decay storage system, should have sufficient retention decay time, there is enough storage capacity (the decay storage tank to each other standby). Periodic testing of the air filter bag, and timely replacement to meet the filtration efficiency. When the high intensity of the radiation field, replace the filter should be remote operation.   View Details
Principle of common Precipitator
2012-12-20
Precipitator is a device called precipitator dust is separated from the flue gas or dust removal equipment. Precipitator performance can handle the amount of gas, the gas passes through the resistance loss and dust removal efficiency of the precipitator to express. The same time, the price of the dust collector, operation and maintenance costs, len... Precipitator is a device called precipitator dust is separated from the flue gas or dust removal equipment. Precipitator performance can handle the amount of gas, the gas passes through the resistance loss and dust removal efficiency of the precipitator to express. The same time, the price of the dust collector, operation and maintenance costs, length of life and the ease of operation and management are also important factors to consider performance. Uses precipitator boilers and industrial production facilities.Common Precipitator principle:bag filterPrecipitator works as follows: the dusty gas from the lower part of the open-flange into the filter chamber, coarser particles fall directly into the ash bin, dusty gas bag filter, dust retention pocket watch, the net gas through pocket to net gas chamber by the fan into the atmosphere. When the dust bag surface is increasing, the programmer start work, open the pulse valve individually compressed air through the vents on the filter bag jet dust filter bag sudden expansion in the role of reverse flow, given pocket watch dust quickly from the filter bag to fall into the ash silo, dust cinder valve discharge.Pulse dust collectorPrecipitators were mainly from the upper box, in the box, ash bucket, into the wind flow tube stent filter bag and blowing device, ash unloading device. Dusty gas flow from the precipitator inlet air tube into the sub-chamber ash bucket, and the diversion of gray bucket deflector, large particles of dust separation directly fall into the ash bucket and finer dust evenly into The central cabinet adsorbed on the outer surface of the filter bags, clean gas through the filter bag into the upper box, and via offline valve and the exhaust pipe into the atmosphere. With the conduct of the filter condition, the dust on the filter bags piled more time by differential pressure setting or cleaning, dust control device when the resistance of the device reaches the limit of resistance value (usually set to 1500Pa) offline valve settings automatically closed room, according to the set procedures to open the electronic control pulse valve to stop the wind blowing, using compressed air instantly blowing poly increase the pressure inside the bag, dust filter bag, and shake off the (even sticky fine dust can also thoroughly cleaning) to the ash bucket by the institutions of the ash discharge.CycloneCyclone additional bypass works dusty gas to enter from the inlet tangential the air rotary motion, airflow separately under a dual-spin cochlear movement, dust generated in the the double spin cochlear boundary between strong the separation of coarse dust particles isolated with backspin cochlear airflow to the outer wall, part of the dust the bypass separation chamber central hole leads, the rest of the dust by the downward airflow with ash bucket. The topspin cochlear air aggregation of fine particles of dust, and to improve the collection efficiency. Finer dust particles, this part of the Ministry of topspin scroll airflow with upward under the cover on the dust ring of strong rotation and and on spin cochlear airflow with the upper part of the hole into the bypass separation chamber, after the introduction of the return air within the cone confluence with the internal airflow, the purified gas is discharged from the exhaust pipe, the separated dust into the hopper.Electrostatic precipitatorsDusty gas from the top of the device, after high-speed cyclone air inlet into the device, so that the dust-containing gas along an axis adjustment screw is rotated downward, by centrifugal force, to get rid of the coarser particles of dust, and to effectively control the initial entering the electric field the beginning of the dust concentration. Then, the gas under the ash bucket into the electric field work, due to lower ash bucket inside the pipe cross-sectional area several times the cross-sectional area greater than the radial velocity and axial wind speed is drastically reduced, according to the principle of rotation moments unchanged, the inner tube to produce zero-speed interface in heavy dust particles settlement under the ash bucket, reduce farm dust concentration, low concentrations of dusty gas pool by electric dust collection plates in yin and yang, and the dust collected by the cleaning rapping by lock wind The device of ash conveying go. In order to prevent the whirlwind of the inner tube and the electric field plate rapping secondary dust formation within the next ash bucket, special lower ash bucket set isolation cone.Various mills of the use of cement, fertilizers, and other industries, the breaking point spout, packaging machine and dryer, and a variety of similar distributed source processing.Cartridge dustThe equipment in the main fan of the system under the action of the dust-containing gas into the dust at the bottom from the lower portion of the air inlet of the precipitator of the air box of the dusty gas pretreatment, and then from the bottom into the upper casing of the dust removing chamber; dust adsorption After filtration of the clean gas through the filter cartridge in the outer surface of the cartridge, the net gas chamber into the upper casing and pooled to the discharge outlet.As the The filter condition continued to accumulate in the filter cartridge on the outer surface of the dust will be piled up, the corresponding increases the running resistance of the device, in order to ensure the normal operation of the system, the dust collector resistance ceiling should be maintained in the range of 1400 ~ 1600Pa within, when more than this limited range, PLC pulse should be automatic controller by blocking or timing issue commands, the three state cleaning.The cartridge filter cleaning process is to cut off the net gas export channel of a room, the room in airflow quiescent state, and then compressed air pulse cleaning dust cleaning followed by a number of seconds natural subsidence, net gas export channel to open the room, not only a thorough cleaning, but also to avoid the dust generated by the jet dust secondary adsorption cycle cleaning so-by-room.Stand-alone dust collectorThe dusty gas to enter the housing, by the flat bag filter to filter, the dust is retained on the bag outer surface, the purified gas through the bag into the fan directly discharged by the fan suction with increasing filtration time, bag outside the adhesion of dust is also increasing, filter bag resistance will also increase accordingly, thus affecting the collection efficiency, start rapping institutions so that the adhesion of dust in the bag surface and shake off the dust down upon the drawer by artificial Pull out the clear.Stand-alone dust collector works:Dusty gas from the inlet into the box to be filtered by the filter bag, dust retention bag outside surface of the purified gas from the fan discharge outlet box directly discharged into the interior (also Jiefeng tube row to outdoor).Continuous work with the host, the adhesion of dust filter bag outside increasing the resistance of the device is rising, and this must be cleaning the dust stuck to the outside of the bag and shake off down by the ash bucket down to the dust collector ( drawer), manual removal.Multiple precipitatorDusty gas by total intake pipe into the gas distribution chamber, and then entered the annular space between the the ceramic the Whirlwind body and deflector. The gas deflector by the linear motion into circular motion, the whirling airflow substantially along the cyclone body from the cylinder substantially spiral downward flow toward the cone, dusty gas to generate centrifugal force during rotation, the density Shuaixiang in the dust particles of the gas cylinder wall. Dust particles in contact with the cylinder wall, they lose the inertial force and rely on the momentum of the inlet velocity and downward gravity along the wall facing the next to fall into the ash into the mouth of the total ash bucket. Rotation decline in external rotation airflow reaches the the cone lower end bit, due to the contraction of the cone to the same direction of rotation of the bottom up in the direction of the axis of the cyclone tube to continue to do the spiral flow (scrubber), the after ceramic cyclone body exhaust tube into the exhaust chamber, and is discharged from the total exhaust port.Electrostatic precipitatorElectrostatic precipitator is built on the basis of the electrostatic precipitator dust source control method, a new way to solve the point of small dispersed dust dust. Production equipment exhaust pipe or install sealed cover as a plate, cover or tube discharge electrode connected to the high voltage power supply electric field. Dusty gas through an electric field, the dust in the electric field force gathered on the cover or wall, the purified gas is discharged through the exhaust pipe. The cleaning off manually rapping or weight. Particularly suitable for crushing, screening workshop and conveying belt sintering dispersed dust points and the mine tunnel, the small boiler soot purification. Simple ESP, despite more but summed up in the hood, tubular and open three.Dust removal deviceCover dust removal device is locally generated dust source control in a sealed cover by the high-voltage electric field suppression or trap dust. The typical cover dust removal device for crushing of raw materials, transportation and screening process on the device, such as belt conveyor, vibrating screen, warehouse roof, and material digital divide dust point fine. View Details