{"id":21,"date":"2023-08-03T13:42:18","date_gmt":"2023-08-03T05:42:18","guid":{"rendered":"https:\/\/anchor-filter.com\/?page_id=21"},"modified":"2026-09-05T12:05:48","modified_gmt":"2026-09-05T04:05:48","slug":"qa","status":"publish","type":"page","link":"https:\/\/anchor-filter.com\/fr\/qa\/","title":{"rendered":"Questions et r\u00e9ponses"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"21\" class=\"elementor elementor-21\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4df92c2 e-flex e-con-boxed e-con e-parent\" data-id=\"4df92c2\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1ff4845 elementor-widget elementor-widget-heading\" data-id=\"1ff4845\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Ceramic Fiber Filter FAQ<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-86f2f04 e-flex e-con-boxed e-con e-parent\" data-id=\"86f2f04\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-8591888 elementor-widget elementor-widget-text-editor\" data-id=\"8591888\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2 style=\"text-align: center;\"><strong>Characteristics of the Ceramic Fiber Filter\u00a0<\/strong><\/h2><p><strong>Cleaning method<\/strong><strong>\uff1a<\/strong><\/p><p>Its main substrates are alumina and silica.<\/p><p><strong>Operating temperature<\/strong><strong>\uff1a<\/strong><\/p><p>Its long-term maximum operating temperature is 1100\u2103 when only dedusting is considered. For catalytic ceramic fiber filter, the recommended operating temperature is 250\u2103-400\u2103.<\/p><p><strong>Corrosion resistance<\/strong><strong>\uff1a<\/strong><\/p><p>Resistant to acid and alkali corrosion( except for super acid and super alkali such as HF, H\u2083PO4, Na\u2082O, K\u2082O when no alkali agent is added)<\/p><p><strong>Non-combustible<\/strong><strong>\uff1a<\/strong><\/p><p>It can contact with the fire directly and it is non-combustible.<\/p><p><strong>Physical strength<\/strong><strong>\uff1a<\/strong><\/p><p>Unlike the traditional bag filter, the ceramic fiber filter can maintain high physical strength at room temperature or high temperature without keel supporting.<\/p><p><strong>Physical structure<\/strong><strong>\uff1a<\/strong><\/p><p>It is made of ceramic fiber to be porous structure, and its wall thickness is 10-20mm.<\/p><p><strong>Filtration velocity<\/strong><strong>\uff1a<\/strong><\/p><p>Generally set from 2cm\/s to 5cm\/s, which is far quicker than the filtration velocity of the bag filter. And it can be adjusted according to the actual working conditions.<\/p><p><strong>Filter resistance<\/strong><strong>\uff1a<\/strong><\/p><p>The filter resistance is only 100pa at room temperature.<\/p><p><strong>System resistance<\/strong><strong>\uff1a<\/strong><\/p><p>The resistance of the whole dedusting system is generally 2000-2300pa.<\/p><p><strong>Filtration accuracy<\/strong><strong>\uff1a<\/strong><\/p><p>It can filter dust larger than 1 micron. For dust smaller than 1 micron, the dedusting effect is also very good if special reagents are added.<\/p><p><strong>Dedusting efficiency<\/strong><strong>\uff1a<\/strong><\/p><p>Up to 99.99%.<\/p><p><strong>Service life<\/strong><strong>\uff1a<\/strong><\/p><p>The ceramic fiber filter can normally be used for 5-10 years, and even more than 10 years for many enterprises.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-8dae5fe e-flex e-con-boxed e-con e-parent\" data-id=\"8dae5fe\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-34171fd elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"34171fd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-7c75599 e-flex e-con-boxed e-con e-parent\" data-id=\"7c75599\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-2cbdff0 elementor-widget elementor-widget-text-editor\" data-id=\"2cbdff0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2 style=\"text-align: center;\"><strong>Cleaning Design<\/strong><\/h2><p><strong>Cleaning method:<\/strong><\/p><p>Clean with pulsed compressed gas backflushing<\/p><p><strong>Backflush pressure:<\/strong><\/p><p>Generally, the pressure used is between 0.4mpa and 0.7mpa, which will be determined according to the parameters of the dusty gas and the specifications of the filter.<\/p><p><strong>Backflush time:<\/strong><\/p><p>The backflush process lasts only 0.15 seconds.<\/p><p><strong>Backflush cycle:<\/strong><\/p><p>The backflush cycle can be set up based on the pressure difference. When the pressure sensor reaches the set parameters, the backflush process start.<\/p><p><strong>Backflush Air Volume:<\/strong><\/p><p>Generally, the amount of compressed gas needed for each filter is the amount of the filter&#8217;s volume.<\/p><p><strong>Backflush design:<\/strong><\/p><p>Each backflush tube can generally be used to blow 18 to 20 small diameter filters , or 8 to 10 large diameter filters. The system structure could be designed according to this.<\/p><p><strong>No expansion of bags:<\/strong><\/p><p>Unlike the traditional bag filter, the ceramic fiber filter itself is a rigid structure. The backflush cleaning process will not expand nor deform the filter.<\/p><p><strong>No raised dust:<\/strong><\/p><p>During the backflush process, the dust cake fall off from the ceramic fiber filter without secondary raised dust caused, while bag filter will cause secondary raised dust.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-d28c68d e-flex e-con-boxed e-con e-parent\" data-id=\"d28c68d\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-5f383fc elementor-widget elementor-widget-text-editor\" data-id=\"5f383fc\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2>Frequently Asked Questions<\/h2><h3>What is the maximum operating temperature of your ceramic fiber filters?<\/h3><p>The maximum long-term operating temperature is 1100\u00b0C when only dedusting is considered. For catalytic ceramic fiber filters, the recommended operating temperature is 250\u00b0C to 400\u00b0C.<\/p><h3>What is the dust removal efficiency?<\/h3><p>Dust removal efficiency is up to 99.99%. The filter captures dust larger than 1 micron, and dust smaller than 1 micron can also be removed very well when special reagents are added.<\/p><h3>What is the service life of a ceramic fiber filter?<\/h3><p>Ceramic fiber filters normally last 5 to 10 years, and many enterprises use them for more than 10 years.<\/p><h3>Which industries are your filters suitable for?<\/h3><p>They are suitable for glass furnaces, cement kilns, coking plants, thermal power plants, waste incinerators, metallurgical smelting furnaces and biomass boilers.<\/p><h3>What are the filtration velocity and system resistance?<\/h3><p>Filtration velocity is generally set from 2 cm\/s to 5 cm\/s, much faster than bag filters. Filter resistance is only 100 Pa at room temperature, and the whole dedusting system resistance is generally 2000-2300 Pa.<\/p><h3>How are the ceramic fiber filters cleaned?<\/h3><p>They are cleaned with pulsed compressed gas backflushing at a pressure of 0.4 MPa to 0.7 MPa. Each backflush lasts about 0.15 seconds and is triggered by pressure difference.<\/p><h3>Do the filters resist acid and alkali corrosion?<\/h3><p>Yes, they are resistant to acid and alkali corrosion, except for super acid and super alkali such as HF, H3PO4, Na2O and K2O when no alkali agent is added.<\/p><h3>What is the difference between non-catalyst and catalytic ceramic fiber filters?<\/h3><p>Non-catalyst filters are used for dedusting only. Catalytic filters also remove SOx, NOx, HCl and dioxins with desulfurization and denitrification efficiency up to 95%, and are recommended at 250\u00b0C to 400\u00b0C.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c13cf37 elementor-widget elementor-widget-html\" data-id=\"c13cf37\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<script type=\"application\/ld+json\">{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"@id\": \"https:\/\/anchor-filter.com\/qa\/#faqpage\", \"url\": \"https:\/\/anchor-filter.com\/qa\/\", \"name\": \"Ceramic Fiber Filter FAQ\", \"description\": \"Frequently asked questions about ceramic fiber filter tubes: operating temperature, dust removal efficiency, service life, applicable industries, filtration velocity, cleaning method, acid\/alkali resistance and the difference between non-catalyst and catalytic filters.\", \"inLanguage\": \"en-US\", \"isPartOf\": {\"@id\": \"https:\/\/anchor-filter.com\/#website\"}, \"about\": [{\"@type\": \"Thing\", \"name\": \"Ceramic fiber filter\"}, {\"@type\": \"Thing\", \"name\": \"High-temperature flue gas filtration\"}, {\"@type\": \"Thing\", \"name\": \"Industrial dedusting\"}], \"datePublished\": \"2026-09-04\", \"dateModified\": \"2026-09-04\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is the maximum operating temperature of your ceramic fiber filters?\", \"about\": {\"@type\": \"Product\", \"name\": \"Ceramic fiber filter\"}, \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The maximum long-term operating temperature is 1100\u00b0C when only dedusting is considered. 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Catalytic filters also remove SOx, NOx, HCl and dioxins with desulfurization and denitrification efficiency up to 95%, and are recommended at 250\u00b0C to 400\u00b0C.\", \"author\": {\"@type\": \"Organization\", \"name\": \"Guangzhou Anchor Technology Co., Ltd.\", \"@id\": \"https:\/\/anchor-filter.com\/#organization\", \"url\": \"https:\/\/anchor-filter.com\/\"}, \"dateCreated\": \"2026-09-04\"}}]}<\/script>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-e1a5346 e-flex e-con-boxed e-con e-parent\" data-id=\"e1a5346\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1853d1f elementor-widget elementor-widget-html\" data-id=\"1853d1f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<script 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