baghouse filter Articles

  • It’s in the Baghouse

    The Lafarge Malogoszcz plant in Poland started up its new fabric filter in May 2005, with a revamped gas conditioning tower for clinker production line 2. The precalciner, kiln and raw mill are dedusted by a Scheuch EMC baghouse, which replaced the existing ESP. Scheuch participated in this project from engineering to start up, and it was completed in only eight months. The daily clinker capacity ...


    By Evonik Fibres GmbH

  • Ineffective cleaning in generic baghouses

    ABSTRACT: Background In a typical “generic” baghouse application, the cleaning is accomplished by back-flushing the filter with compressed air that travels through an orifice hole in a purge tube (blow pipe) and through a venturi. A typical generic cleaning system allows dust to be filtered at an air-to-cloth ratio of 5:1. That means for every 5 CFM of airflow, there is 1 square foot ...


    By Scientific Dust Collectors

  • Improving the cleaning cycle in baghouse collectors

    ABSTRACT: Background The reverse pulse jet baghouse has been around for over 45 years and the cleaning cycle has not changed very much since that time. The cleaning cycle is the most important part of the dust collector because it controls efficiency and media life. In a generic baghouse, the cleaning system is comprised of a blowpipe that is located typically approximately three inches above ...


    By Scientific Dust Collectors

  • Optimizing Baghouse Performance in Waste-to- Energy Incinerator

    An end user with many years experience, operating3 different Municipal Waste Incineration plants, decided to build a new “state of the art” plant. After fully investigating the performance of different types of filter media, he decided upon GORE-TEX® membrane on GORE-TEX® felt, as he was convinced that is was the “best available ...


    By W. L. Gore & Associates

  • Advantages of cleaning without a venturi in baghouse collectors

    ABSTRACT: Background The cleaning cycle is the most important part of the dust collector because it controls efficiency and media life. In order to clean a row of bags in a reverse pulse jet baghouse first the flow of filtered air must be momentarily stopped and then back flushed or “induce” air to knock the dust cake off the outside of the filter media. A venturi at the top of the ...


    By Scientific Dust Collectors

  • Baghouse dust collector helps improve casting process one step at a time case study

    Cascade Dafo, Fernadale, Wash., designs and manufac- tures dynamic ankle and foot orthoses (orthotic braces) to help im- prove the mobility of children and adults with neuromuscular chal- lenges. In the past, the company used a cartridge dust collector to collect dust generated during the finishing step of a manual plaster-casting process. When the company auto- mated the casting process, it ...


    By Scientific Dust Collectors

  • High-Tech Filters

    The current economic situation of the cement industry creates sensitivity regarding off-times and process stability. More stringent air-pollution laws, especially when using waste-derived fuels, are drawing more attention to the off-gas cleaning facilities, usually bag filters. This article does not deal with electrostatic precipitators - as even they have well known disadvantages. By using more ...


    By Evonik Fibres GmbH

  • To prevent blinding in dust collection systems, consider filter type, filter size and selection of the filter media used

    All dust collection systems, regardless of size, share a common problem—dust blinding. Simply stated, blinding is defined as when dust particles plug the holes in a filter and stop the flow of air through the filter, resulting in the dust collector performing poorly. All types of collectors, whether stand-alone units, cyclones or full-scale baghouses, are subject to blinding. To better ...


    By American Fabric Filter Co

  • Solid / gas separation with fabric filters

    A myriad of filter media are utilized today for separation of particulate matter in industrial gas filtration applications. These media range from single use (deposable) to semi-permanent media and include fiber, fabric, ceramic, membrane, metal mesh, and sintered metal media. Semi-permanent media are usually cleanable, either on or off-line, and are primarily intended for long-term (up to ...

  • Minicipal Waste Incinerator Case History

    Low temperature plant operation had resulted in severe baghouse corrosion and constant dust blockages throughout the system. It was decided to raise the operational temperature of the incinerator and change the acid gas scrubbing agent from lime to sodium bicarbonate. However, the existing felt filter media could not cope with the change in acid gas scrubbing agent and “blinded” very rapidly ...


    By W. L. Gore & Associates

  • New Nozzle Technology “Cleaning More with Less”

    This technical paper will explain the new nozzle technology developed by Scientific Dust Collectors that allows high air-to-cloth ratio baghouses to use 80psig of compressed air instead of the industry standard 100psig.   The reverse pulse jet baghouse has been around for over 50 years and the cleaning cycle has not changed very much during that time. The cleaning cycle is the most important ...


    By Scientific Dust Collectors

  • Zero waste, Saudi Arabia

    The Saudi Iron & Steel Company (Hadeed) has a strong commitment to the environment. Hadeed's 3R waste management strategy – reuse, recycle, recover – includes recovering valuable metals, and re-using baghouse dust (from industrial air filters) in concrete cement. Harsco has a long track record of recovering valuable metals from steelmaking co-products, and in the same process ...


    By Harsco Metals & Minerals

  • Advances in control of PM2.5 and PM2.5 precursors generated by the combustion of pulverised coal

    Particulate matter smaller than 2.5 mm in aerodynamic diametre (PM2.5) from coal-fired boilers is composed of directly emitted (primary) particles and particles formed from precursors (secondary particles). Technologies to reduce emissions of precursors to secondary PM2.5 emitted by coal-fired utility plants include wet and dry flue gas desulphurisation (FGD). Limestone forced ...


    By Inderscience Publishers

  • How the federal utility MACT rule may affect US businesses

    The final standards for hazardous air pollutant (HAP) emissions from electric generating units (EGUs), one of the last industries to be regulated by MACT, was just published in the Federal Register on February 16 and officially goes into effect on April 16, 2012. The rule (“Utility MACT”) had been long awaited; the USEPA began developing it 11 years ago. According to federal NESHAP, ...


  • Total solution: Gas and particulate analysis in Cement industry

    Cement plants are increasingly required to install continuous emission monitoring systems (CEMS). While these represent a significant financial outlay, a range of other factors also need to be considered when selecting a suitable CEMS. To the inexperienced, selecting a suitable CEM can mistakenly be considered as simply ensuring that the applicable national regulations (eg MACT in the USA, ...


    By Environnement S.A

  • Global solution: Gas and particulate analysis in Cement industry

    Cement plants are increasingly required to install continuous emission monitoring systems (CEMS). While these represent a significant financial outlay, a range of other factors also need to be considered when selecting a suitable CEMS. To the inexperienced, selecting a suitable CEM can mistakenly be considered as simply ensuring that the applicable national regulations (eg MACT in the USA, ...


    By Environnement S.A

  • Difficult Complex Decisions For Coal-fired Power Plant Operators

    Changing fuel prices, government regulations and technology all combine to make decision making difficult for operators and developers of coal-fired power generation facilities around the world. Power plant designers in developing countries face new local environmental regulations plus additional requirements stipulated by lenders such as the World Bank. In the developed world, the regulations ...


    By The McIlvaine Company

  • Controlling Stack Emissions in the Wood Products Industry

    Electrostatic precipitation has been a reliable technology since the early 1900's. Originally developed to abate serious smoke nuisances, the manufacturers of zinc, copper, and lead quickly found electric gas cleaning a cost efficient way to recover valuable product carried out of the stacks from furnace operations. Today electrostatic precipitators are found mainly on large power plants, cement ...


  • A cure for Environmental Emissions case study

    Disposing of nearly 1 million pounds of medical waste a month is no easy task. The wet electrostatic precipitator, installed at Rochester, MN-based Mayo Clinic, seems to be just what the doctor ordered. While the medical waste incinerator at Mayo Clinic in Rochester, MN, consistently met state and federal emission requirements, facility leadership recognized that installing a wet electrostatic ...


    By Bionomic Industries Inc.

  • Urban Air Quality Management

    ' Poor air quality due to pollution is a serious environmental problem in most urban areas. The greatest burden of pollution is on human health. Urban air quality management requires an integrated approach that (i) identifies the most serious problems and measures that offer cost-effective and feasible solutions across a range of economic sectors and pollution sources including industries, ...


    By The World Bank

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