{"id":134,"date":"2017-05-05T10:36:55","date_gmt":"2017-05-05T09:36:55","guid":{"rendered":"http:\/\/fallenleaftesting.co.uk\/ipd\/?page_id=134"},"modified":"2019-02-18T11:21:14","modified_gmt":"2019-02-18T11:21:14","slug":"decanter-centrifuges","status":"publish","type":"page","link":"https:\/\/broadbent.nmstaging.co.uk\/ipd\/products\/decanter-centrifuges\/","title":{"rendered":"Decanter Centrifuges"},"content":{"rendered":"<p>[et_pb_section bb_built=&#8221;1&#8243; admin_label=&#8221;section&#8221;][et_pb_row admin_label=&#8221;row&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; background_size=&#8221;initial&#8221;][et_pb_column type=&#8221;4_4&#8243;][et_pb_text background_layout=&#8221;light&#8221; text_orientation=&#8221;left&#8221; use_border_color=&#8221;off&#8221; border_color=&#8221;#ffffff&#8221; border_style=&#8221;solid&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; background_size=&#8221;initial&#8221;]<\/p>\n<h1 style=\"text-align: center;\"><strong>Decanter centrifuges<\/strong><\/h1>\n<p>[\/et_pb_text][et_pb_text background_layout=&#8221;light&#8221; text_orientation=&#8221;left&#8221; use_border_color=&#8221;off&#8221; border_color=&#8221;#ffffff&#8221; border_style=&#8221;solid&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; background_size=&#8221;initial&#8221;]<\/p>\n<p><strong>Solid bowl and screen bowl decanter centrifuges<\/strong><\/p>\n<p>The two primary types of decanter centrifuge are solid bowl decanters and screen bowl decanters.<\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; background_size=&#8221;initial&#8221;][et_pb_column type=&#8221;1_2&#8243;][et_pb_image src=&#8221;https:\/\/broadbent.nmstaging.co.uk\/ipd\/wp-content\/uploads\/sites\/5\/2019\/01\/Image017-1.jpg&#8221; use_border_color=&#8221;off&#8221; animation_style=&#8221;slide&#8221; animation_duration=&#8221;500ms&#8221; animation_intensity_slide=&#8221;10%&#8221; animation_direction=&#8221;left&#8221; _builder_version=&#8221;3.5.1&#8243; \/][et_pb_text background_layout=&#8221;light&#8221; text_orientation=&#8221;left&#8221; use_border_color=&#8221;off&#8221; border_color=&#8221;#ffffff&#8221; border_style=&#8221;solid&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; background_size=&#8221;initial&#8221;]<\/p>\n<p>Solid bowl decanter centrifuge, used to process PVC slurry<\/p>\n<p>[\/et_pb_text][\/et_pb_column][et_pb_column type=&#8221;1_2&#8243;][et_pb_image src=&#8221;https:\/\/broadbent.nmstaging.co.uk\/ipd\/wp-content\/uploads\/sites\/5\/2019\/01\/screen-bowl-cropped-BEST-800-600.jpg&#8221; use_border_color=&#8221;off&#8221; animation_style=&#8221;slide&#8221; animation_duration=&#8221;500ms&#8221; animation_intensity_slide=&#8221;10%&#8221; animation_direction=&#8221;left&#8221; _builder_version=&#8221;3.5.1&#8243; \/][et_pb_text use_border_color=&#8221;off&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; background_size=&#8221;initial&#8221; _builder_version=&#8221;3.5.1&#8243;]<\/p>\n<p>900mm screen bowl decanter, with casing top removed<\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; background_size=&#8221;initial&#8221;][et_pb_column type=&#8221;4_4&#8243;][et_pb_tabs use_border_color=&#8221;off&#8221; border_color=&#8221;#ffffff&#8221; border_style=&#8221;solid&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; background_size=&#8221;initial&#8221;][et_pb_tab title=&#8221;Key Benefits&#8221; tab_font_select=&#8221;default&#8221; tab_font=&#8221;||||&#8221; tab_line_height=&#8221;2em&#8221; tab_line_height_tablet=&#8221;2em&#8221; tab_line_height_phone=&#8221;2em&#8221; body_font_select=&#8221;default&#8221; body_font=&#8221;||||&#8221; body_line_height=&#8221;2em&#8221; body_line_height_tablet=&#8221;2em&#8221; body_line_height_phone=&#8221;2em&#8221;]<\/p>\n<ul>\n<li>simple to use<\/li>\n<li>low operating costs<\/li>\n<li>low maintenance costs<\/li>\n<li>compact footprint<\/li>\n<li>low cake moisture<\/li>\n<li>high solids removal<\/li>\n<li>high centrate clarity<\/li>\n<li>long operational life<\/li>\n<\/ul>\n<p>[\/et_pb_tab][et_pb_tab title=&#8221;Features&#8221; tab_font_select=&#8221;default&#8221; tab_font=&#8221;||||&#8221; tab_line_height=&#8221;2em&#8221; tab_line_height_tablet=&#8221;2em&#8221; tab_line_height_phone=&#8221;2em&#8221; body_font_select=&#8221;default&#8221; body_font=&#8221;||||&#8221; body_line_height=&#8221;2em&#8221; body_line_height_tablet=&#8221;2em&#8221; body_line_height_phone=&#8221;2em&#8221;]<\/p>\n<ul>\n<li>user-friendly, advanced control technology<\/li>\n<li>screen and solid bowl configurations<\/li>\n<li>bowl diameter sizes from 150mm \u2013 1400mm<\/li>\n<li>sealed and pressure-tight options<\/li>\n<li>state-of-the-art, abrasion-resistant materials appropriate to application<\/li>\n<li>for slurries 1-70% solids: particles 1 micron &#8211; 1cm<\/li>\n<li>solids output from 0.1 \u2013 100t\/h dry solids<\/li>\n<li>centrate output from 40 L\/min to 3,500 L\/min<\/li>\n<li>CE, EN12547 and ISO9001-2008-compliant<\/li>\n<li>Meets environmental noise regulations<\/li>\n<\/ul>\n<p>[\/et_pb_tab][\/et_pb_tabs][\/et_pb_column][\/et_pb_row][et_pb_row background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; background_size=&#8221;initial&#8221;][et_pb_column type=&#8221;2_3&#8243;][et_pb_text background_layout=&#8221;light&#8221; text_orientation=&#8221;left&#8221; use_border_color=&#8221;off&#8221; border_color=&#8221;#ffffff&#8221; border_style=&#8221;solid&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; background_size=&#8221;initial&#8221;]<\/p>\n<p><strong>Solid bowl decanter centrifuges<\/strong><\/p>\n<p>The commonest form of decanter is the solid bowl decanter. It is used in to dewater slurries in many process applications, such as:<\/p>\n<ul>\n<li>Minerals<\/li>\n<li>Effluent treatment<\/li>\n<li>PTA, PVC and polyolefins<\/li>\n<li>MMA and ABS<\/li>\n<li>HDPE and styrene<\/li>\n<li>gypsum dewatering<\/li>\n<\/ul>\n<p>We offer an extensive range of sizes, capacities and materials of construction (the size range table below gives more detailed information). We also manufacture fume-tight and pressure decanters for specialist and hazardous applications.<\/p>\n<p>[\/et_pb_text][\/et_pb_column][et_pb_column type=&#8221;1_3&#8243;][et_pb_image src=&#8221;https:\/\/broadbent.nmstaging.co.uk\/ipd\/wp-content\/uploads\/sites\/5\/2019\/01\/MG_9191.jpg&#8221; use_border_color=&#8221;off&#8221; animation_style=&#8221;slide&#8221; animation_duration=&#8221;500ms&#8221; animation_intensity_slide=&#8221;10%&#8221; animation_direction=&#8221;left&#8221; _builder_version=&#8221;3.5.1&#8243; \/][\/et_pb_column][\/et_pb_row][et_pb_row background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; background_size=&#8221;initial&#8221;][et_pb_column type=&#8221;4_4&#8243;][et_pb_divider show_divider=&#8221;on&#8221; color=&#8221;#2fc2dd&#8221; divider_style=&#8221;solid&#8221; divider_position=&#8221;top&#8221; hide_on_mobile=&#8221;on&#8221; custom_css_before=&#8221; max-width: 70%!important;|| margin-left: 15%;&#8221; saved_tabs=&#8221;all&#8221; global_module=&#8221;315&#8243; disabled_on=&#8221;on|on|off&#8221; \/][\/et_pb_column][\/et_pb_row][et_pb_row background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; background_size=&#8221;initial&#8221;][et_pb_column type=&#8221;2_3&#8243;][et_pb_text background_layout=&#8221;light&#8221; text_orientation=&#8221;left&#8221; use_border_color=&#8221;off&#8221; border_color=&#8221;#ffffff&#8221; border_style=&#8221;solid&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; background_size=&#8221;initial&#8221;]<\/p>\n<p><strong>Screen bowl decanter centrifuges<\/strong><\/p>\n<p>The screen bowl decanter centrifuge is operationally similar to the solid bowl units, but provides greater washing efficiency and enhanced moisture removal in applications involving crystalline materials. The screen bowl decanter operates in two stages, combining the clarification and sedimentation advantages of the solid bowl centrifuge and the dewatering benefits of an additional screen section. These centrifuges are typically used for processing BPA, PX, some minerals and polyolefins.<\/p>\n<p>[\/et_pb_text][\/et_pb_column][et_pb_column type=&#8221;1_3&#8243;][et_pb_image src=&#8221;https:\/\/broadbent.nmstaging.co.uk\/ipd\/wp-content\/uploads\/sites\/5\/2019\/01\/ZPC-Screen-bowl-decanters-20.jpg&#8221; use_border_color=&#8221;off&#8221; animation_style=&#8221;slide&#8221; animation_duration=&#8221;500ms&#8221; animation_intensity_slide=&#8221;10%&#8221; animation_direction=&#8221;left&#8221; _builder_version=&#8221;3.5.1&#8243; \/][\/et_pb_column][\/et_pb_row][et_pb_row background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; background_size=&#8221;initial&#8221;][et_pb_column type=&#8221;4_4&#8243;][et_pb_tabs use_border_color=&#8221;off&#8221; border_color=&#8221;#ffffff&#8221; border_style=&#8221;solid&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; background_size=&#8221;initial&#8221;][et_pb_tab title=&#8221;Key Benefits&#8221; tab_font_select=&#8221;default&#8221; tab_font=&#8221;||||&#8221; tab_line_height=&#8221;2em&#8221; tab_line_height_tablet=&#8221;2em&#8221; tab_line_height_phone=&#8221;2em&#8221; body_font_select=&#8221;default&#8221; body_font=&#8221;||||&#8221; body_line_height=&#8221;2em&#8221; body_line_height_tablet=&#8221;2em&#8221; body_line_height_phone=&#8221;2em&#8221;]<\/p>\n<ul>\n<li>mother liquor and wash liquor can be collected separately<\/li>\n<li>performance less affected by feed consistency variations<\/li>\n<li>low moistures (due to final drainage of the cake through the screen)<\/li>\n<\/ul>\n<p>[\/et_pb_tab][et_pb_tab title=&#8221;Features&#8221; tab_font_select=&#8221;default&#8221; tab_font=&#8221;||||&#8221; tab_line_height=&#8221;2em&#8221; tab_line_height_tablet=&#8221;2em&#8221; tab_line_height_phone=&#8221;2em&#8221; body_font_select=&#8221;default&#8221; body_font=&#8221;||||&#8221; body_line_height=&#8221;2em&#8221; body_line_height_tablet=&#8221;2em&#8221; body_line_height_phone=&#8221;2em&#8221;]<\/p>\n<ul>\n<li>cake-washing facility<\/li>\n<li>segregates wash and mother liquors<\/li>\n<li>fine screen slots limit solids losses<\/li>\n<\/ul>\n<p>[\/et_pb_tab][\/et_pb_tabs][et_pb_text use_border_color=&#8221;off&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; background_size=&#8221;initial&#8221; _builder_version=&#8221;3.5.1&#8243;]<\/p>\n<p style=\"text-align: center;\"><strong>Would you like to assess the results achievable with a decanter centrifuge? Find out more in our <\/strong><a href=\"https:\/\/broadbent.nmstaging.co.uk\/research-technology\/process-lab\/\"><strong>Process laboratory section<\/strong><\/a><\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; background_size=&#8221;initial&#8221;][et_pb_column type=&#8221;1_2&#8243;][et_pb_text use_border_color=&#8221;off&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; background_size=&#8221;initial&#8221; _builder_version=&#8221;3.5.1&#8243;]<\/p>\n<h3><strong>Decanter centrifuges: principles of operation<\/strong><\/h3>\n<p>The fundamental principle of a decanter centrifuge is the acceleration of sedimentation under gravity. Diagram (a) below shows a simple settling tank with a continuously moving scraper removing the settled solids at the left-hand end. The liquid flows over the scraper blades and leaves the tank at the right-hand end. According to Stokes\u2019 Law, the rate at which a solid particle within the tank will settle depends on a number of factors including the relative density of the solids and the liquid, the size of the particle and the acceleration due to gravity.<\/p>\n<p>If the tank is transformed, as shown in Diagram (b) into a tapered cylinder (c) and the cylinder is rotated at high speed about its centre line, a high centrifugal g-force is exerted on the liquid and solids. This centrifugal g-force replaces the acceleration due to gravity in Stokes\u2019 Law and results in rapid sedimentation of those particles of greater density than the liquid. The continuously moving scraper in (a) is replaced by the helix shown in (c), which transports the solids out of the tapered end of the cylinder allowing continuous separation. The original settling tank (a) has now been transformed into a decanting centrifuge (c).<\/p>\n<p>[\/et_pb_text][\/et_pb_column][et_pb_column type=&#8221;1_2&#8243;][et_pb_image src=&#8221;https:\/\/broadbent.nmstaging.co.uk\/ipd\/wp-content\/uploads\/sites\/5\/2019\/01\/dec-principlesofoperationfigs.jpg&#8221; use_border_color=&#8221;off&#8221; animation_style=&#8221;slide&#8221; animation_duration=&#8221;500ms&#8221; animation_intensity_slide=&#8221;10%&#8221; animation_direction=&#8221;left&#8221; _builder_version=&#8221;3.5.1&#8243; \/][\/et_pb_column][\/et_pb_row][et_pb_row background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; background_size=&#8221;initial&#8221;][et_pb_column type=&#8221;4_4&#8243;][et_pb_text use_border_color=&#8221;off&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; background_size=&#8221;initial&#8221; _builder_version=&#8221;3.5.1&#8243;]<\/p>\n<p>There are many variations of decanting centrifuges in use in a wide variety of process applications: however the basic principles outlined above apply to all decanter centrifuges.<\/p>\n<p><strong>Broadbent decanter centrifuge designs are available with capacities up to 200m<sup>3<\/sup> \/ hour of feed and provide:<\/strong><\/p>\n<ul>\n<li>excellent process performance<\/li>\n<li>proven heavy duty reliable designs<\/li>\n<li>continuous operation with minimum operator supervision<\/li>\n<li>long operational life<\/li>\n<li>sealed or pressure-tight options available for use with hazardous chemicals<\/li>\n<li>fully wear-protected for use with abrasive minerals<\/li>\n<\/ul>\n<p>available in a wide range of materials of construction.<\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Decanter centrifuges Solid bowl and screen bowl decanter centrifuges The two primary types of decanter centrifuge are solid bowl decanters and screen bowl decanters. Solid bowl decanter centrifuge, used to process PVC slurry 900mm screen bowl decanter, with casing top removed simple to use low operating costs low maintenance costs compact footprint low cake moisture [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":104,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"class_list":["post-134","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/broadbent.nmstaging.co.uk\/ipd\/wp-json\/wp\/v2\/pages\/134","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/broadbent.nmstaging.co.uk\/ipd\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/broadbent.nmstaging.co.uk\/ipd\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/broadbent.nmstaging.co.uk\/ipd\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/broadbent.nmstaging.co.uk\/ipd\/wp-json\/wp\/v2\/comments?post=134"}],"version-history":[{"count":18,"href":"https:\/\/broadbent.nmstaging.co.uk\/ipd\/wp-json\/wp\/v2\/pages\/134\/revisions"}],"predecessor-version":[{"id":816,"href":"https:\/\/broadbent.nmstaging.co.uk\/ipd\/wp-json\/wp\/v2\/pages\/134\/revisions\/816"}],"up":[{"embeddable":true,"href":"https:\/\/broadbent.nmstaging.co.uk\/ipd\/wp-json\/wp\/v2\/pages\/104"}],"wp:attachment":[{"href":"https:\/\/broadbent.nmstaging.co.uk\/ipd\/wp-json\/wp\/v2\/media?parent=134"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}