baghouse filter system Articles

  • 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

  • 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

  • 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 ...

  • Keephills Unit 3: Spray Dryer Absorber, Pulse Jet Fabric Filter and Mercury Control Systems - Case study

    TransAlta and Capital Power Wabamun, Alberta, Canada Contract Order: 2007 Commercial Operation: 2011 Overview Babcock & Wilcox spray dryer absorber (SDA) ...


    By Dürr Megtec LLC

  • San Juan Generating Station Air Quality Control Systems - Case study

    Public Service Company of New Mexico Waterflow, New Mexico Contract Order 2006 (Units 3 & 4) 2007 (Units 1 & 2) Commercial Operation 2007 for Unit 4 2008 for Units 1 & 3 2009 for Unit 2 Babcock & ...


    By Dürr Megtec LLC

  • 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

  • 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

  • Hawthorn Unit 5 - Case study

    Kansas City Power & Light Kansas City, Missouri An explosion during a maintenance outage on February 17, 1999, destroyed the original Hawthorn Unit 5 boiler. In August 1999, B&W was released to design, supply, erect and commission a complete replacement boiler on an accelerated schedule. ...


    By Dürr Megtec LLC

  • Weston Unit 4 - Case study

    Wisconsin Public Service Wausau, Wisconsin Plant Owner Wisconsin Public Service Plant Name Weston Unit 4 Location Near Wausau, Wisconsin B&W Scope ...


    By Dürr Megtec LLC

  • John W. Turk, Jr. Unit 1 - Case study

    Southwestern Electric Power Company American Electric Power Fulton, Arkansas Plant Owner Southwestern Electric Power Company, American Electric Power Plant Name John W. Turk, Jr. Unit 1 Location Fulton, Arkansas Contract Order: 2006 ...


    By Dürr Megtec LLC

  • 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 ENVEA

  • 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 ENVEA

  • Foundry by products and casting waste

    There are lots of waste elements generated by the casting process, creating a waste stream that requires specific handling in order to minimise the risk of land contamination, both through the handling process and the storage and disposal of raw materials ...


    By Inciner8 Limited

  • 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.

  • 25 Years of Success – Outokumpu Stainless DC Plasma Smelting Facility

    Design is not just what is looks and feels like. Design is how it works. Between 1982 and 1987, British Steel (Outokumpu today) made extensive investigations into the treatment of steel dust. Their research was far and wide and covered off many various methods of recycling, including alternative to plasma technologies. But, in 1985, they engaged Tetronics International to carry out a ...

  • Thermal Treatment Technologies

    Hot gas decontamination: Hot gas decontamination is a technology still in the pilot-scale of development that can be used for decontamination of explosives-contaminated masonry or metallic structures. The method involves sealing and insulating the structures, heating with hot gas stream to 260 °C (500 °F) for a prescribed period of time, volatilizing the explosive contaminants, and destroying ...

  • EPA Proposed “Franken-MACT” for Utilities

    EPA published the highly anticipated proposed Maximum Available Control Technology (MACT) Standard for the utility sector (40 CFR 63 Subpart UUUUU). When considered together with the growing list of proposed and final rules impacting the utility sector (Transport Rule/Cross-State Rule, Coal Combustion Byproducts Rule, Cooling Water Intake Rule, Regional Haze Rule, revised National Ambient Air ...


    By Trinity Consultants

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