{"id":2545,"date":"2017-11-16T07:57:27","date_gmt":"2017-11-16T07:57:27","guid":{"rendered":"https:\/\/engineernewsnetwork.com\/blog\/?p=2545"},"modified":"2017-11-16T07:57:27","modified_gmt":"2017-11-16T07:57:27","slug":"automatic-self-cleaning-electrostatic-precipitator-system","status":"publish","type":"post","link":"https:\/\/www.engineernewsnetwork.com\/blog\/automatic-self-cleaning-electrostatic-precipitator-system\/","title":{"rendered":"Automatic self-cleaning electrostatic precipitator system"},"content":{"rendered":"<p>Looking to minimise the TCO on a replacement electrostatic precipitator (ESP) system, flooring manufacturer Polyflor has chosen an new design from <span class=\"highlight highlight-blue\"><a href=\"http:\/\/www.thermtech.co.uk\" target=\"_blank\" rel=\"noopener\">ThermTech<\/a><\/span>.<\/p>\n<p>Judged to be the most cost-effective option to remove plastisol emissions from flue gases, the new ESP unit incorporates a cleaning system that effectively eliminates down-time for maintenance.<br \/>\n<script async src=\"\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script><br \/>\n<ins class=\"adsbygoogle\" style=\"display: block; text-align: center;\" data-ad-format=\"fluid\" data-ad-layout=\"in-article\" data-ad-client=\"ca-pub-7565662001938327\" data-ad-slot=\"7585079586\"><\/ins><br \/>\n<script>\n(adsbygoogle = window.adsbygoogle || []).push({});\n<\/script><\/p>\n<p>Polyflor is a producer of PVC flooring and has been manufacturing in the UK since 1915. It is constantly looking to improve its carbon footprint and that of its suppliers as well as minimising its impact on the environment.<\/p>\n<p>ThermTech was involved in installing a 16,000 CFM, triple-stage air pollution control (APC) unit at Polyflor\u2019s site in Manchester over 25 years ago.<\/p>\n<p>Over the years ThermTech has continued to provide technical support for that unit, which had now reached the end of its service life.<\/p>\n<p>The quality and engineering support aspects of what ThermTech could provide were therefore well established, the decision came down to which technology suited the application best.<\/p>\n<p>Regulations and standards relating to air pollution have been tightened since the original APC installation and now Polyflor needed to find a replacement unit that would meet future standards.<\/p>\n<p>There were essentially five options available: a high efficiency Venturi scrubber, a biological scrubber, a coalescing candle filter, an incinerator or a new ESP. The venturi scrubber, coalescer and the incinerator have very high energy costs associated with them while the biological scrubber requires a large area for the installation.<\/p>\n<p>In the past ESPs had developed a reputation for being very efficient to run and very effective, but costly to maintain due to the cleaning requirement.<\/p>\n<p>In fact, ESPs have the highest collection efficiency for sub-micron particles, the ability to recover the captured products, and the lowest electrical running cost per unit volume of air throughput of any of the five pollution control devices.<\/p>\n<p>However, the efficiency with which ESPs can remove solids, moisture and thermal degradation products from flue gases causes the precipitator and its associated gas cooling equipment to eventually become blocked. This requires them to be cleaned, sometimes off-site, which until now, resulted in downtime for the manufacturing process they are associated with.<\/p>\n<p>ThermTech had completed a considerable amount of research into solving this problem and now there was an opportunity to prove the theory. ThermTech approached Polyflor with a proposal to install a pilot plant that could be used to evaluate the technology.<\/p>\n<p>Successfully winning a government development grant, ThermTech manufactured the prototype equipment and installed it at Polyflor\u2019s Manchester site, where it was connected to a stream of flue gas.<\/p>\n<p>Over a period of several months the process was fine-tuned until the ESP cells could be washed periodically, or on demand, automatically and be brought back online within 2 minutes of the cycle ending.<\/p>\n<p>Lionel Macey, Technical Director at ThermTech, comments: \u201cThe process was closely monitored and found to remove 99.5% of contaminants from the flue gas stream, while the new automated cleaning process enabled this to remain a continuous process.<\/p>\n<p>\u201cBy removing the need for periods of downtime to disassemble the unit to manually clean it, ThermTech has re-established ESPs as a prime low energy abatement plant (LEAP) product.\u201d<\/p>\n<p>Following the successful conclusion of the pilot scheme ThermTech has applied for a patent for the technology in the cleaning process, which was one of the conditions attached to the government loan. It has also designed, built and installed a full-scale, 20,000 CFM, triple-pass plant for Polyflor.<\/p>\n<p>The new system uses a full wash cycle every 6 hours and has been operational 24 hours a day, five days a week, for the last 14 months, without any loss of performance.<\/p>\n<p>The system includes a range of sensors that continuously monitor the emissions from the flue chimney and provide real-time data to the Polyflor maintenance team.<\/p>\n<p>The data from the sensors is also monitored and logged remotely by ThermTech to ensure continued performance of the cleaning system.<\/p>\n<p>Furthermore, the local council has carried out independent environmental monitoring of the flue chimney and agreed completely with the data provided by the ThermTech installation.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Looking to minimise the TCO on a replacement electrostatic precipitator (ESP) system, flooring manufacturer Polyflor has chosen an new design from ThermTech. Judged to be the most cost-effective option to remove plastisol emissions from flue gases, the new ESP unit incorporates a cleaning system that effectively eliminates down-time for maintenance. Polyflor is a producer of &hellip;<\/p>\n","protected":false},"author":1,"featured_media":2546,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[1036,1034,1039,1033,1038,1037,1032,1035],"class_list":["post-2545","post","type-post","status-publish","format-standard","has-post-thumbnail","","category-process","tag-coalescer-and-incinerator","tag-flue-gas-filter-systems","tag-flue-gases","tag-industrial-waste-heat-recovery-systems","tag-plastisol-emissions","tag-polyflor","tag-thermtech","tag-venturi-scrubber"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Automatic self-cleaning electrostatic precipitator system - Engineer News Network<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.engineernewsnetwork.com\/blog\/automatic-self-cleaning-electrostatic-precipitator-system\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Automatic self-cleaning electrostatic precipitator system - Engineer News Network\" \/>\n<meta property=\"og:description\" content=\"Looking to minimise the TCO on a replacement electrostatic precipitator (ESP) system, flooring manufacturer Polyflor has chosen an new design from ThermTech. Judged to be the most cost-effective option to remove plastisol emissions from flue gases, the new ESP unit incorporates a cleaning system that effectively eliminates down-time for maintenance. 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