{"id":8718,"date":"2026-02-07T09:50:00","date_gmt":"2026-02-07T01:50:00","guid":{"rendered":"https:\/\/www.recycle-plant.com\/?post_type=info&#038;p=8718"},"modified":"2026-02-05T14:39:25","modified_gmt":"2026-02-05T06:39:25","slug":"how-the-sink-float-separation-tank-works","status":"publish","type":"info","link":"https:\/\/www.recycle-plant.com\/fr\/how-the-sink-float-separation-tank-works.html","title":{"rendered":"La science de la densit\u00e9 : comment fonctionne le r\u00e9servoir de s\u00e9paration par immersion et flottement"},"content":{"rendered":"<p class=\"wp-block-paragraph translation-block\">Comment s\u00e9parer automatiquement les flocons de PET des bouchons (PE) et des anneaux (PP) ? La r\u00e9ponse r\u00e9side dans le <a href=\"https:\/\/www.recycle-plant.com\/fr\/washing-tank-5.html\">r\u00e9servoir de s\u00e9paration par immersion et flottement<\/a>, une masterclass dans l'application de la physique de base aux d\u00e9fis industriels.<\/p>    <p class=\"wp-block-paragraph translation-block\">Le principe est <strong>s\u00e9paration par densit\u00e9<\/strong>. Le PET a une densit\u00e9 d'environ 1,38 g\/cm\u00b3, ce qui le fait couler dans l'eau. En revanche, le PP et le PE ont des densit\u00e9s inf\u00e9rieures \u00e0 1,0 g\/cm\u00b3, ce qui leur permet de flotter.<\/p>    <p class=\"wp-block-paragraph translation-block\">Dans notre ligne de lavage de bouteilles en PET \u00e0 haute capacit\u00e9 <strong><a href=\"https:\/\/www.recycle-plant.com\/fr\/plastic-bottle-recycling-line\/\">ligne de lavage de bouteilles en PET<\/a><\/strong>, les flocons sont agit\u00e9s dans le r\u00e9servoir. Les \u00ab plongeurs \u00bb (PET pur) sont collect\u00e9s par un convoyeur \u00e0 vis au fond, tandis que les \u00ab flottants \u00bb (\u00e9tiquettes et bouchons) sont \u00e9cum\u00e9s en surface. Pour obtenir la plus haute <strong>puret\u00e9 des flocons de PET<\/strong>, nous recommandons une configuration \u00e0 plusieurs \u00e9tapes. Cela garantit que m\u00eame les plus petits fragments de contaminants flottants sont \u00e9limin\u00e9s, vous laissant un produit final r\u00e9pondant aux exigences internationales les plus strictes.<\/p>    <figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"720\" height=\"540\" src=\"https:\/\/www.recycle-plant.com\/wp-content\/uploads\/2026\/02\/Sink-Float-Separation-Tank-Works.webp\" alt=\"R\u00e9servoir de s\u00e9paration par immersion et flottement fonctionne\" class=\"wp-image-8719\" srcset=\"https:\/\/www.recycle-plant.com\/wp-content\/uploads\/2026\/02\/Sink-Float-Separation-Tank-Works.webp 720w, https:\/\/www.recycle-plant.com\/wp-content\/uploads\/2026\/02\/Sink-Float-Separation-Tank-Works-360x270.webp 360w, https:\/\/www.recycle-plant.com\/wp-content\/uploads\/2026\/02\/Sink-Float-Separation-Tank-Works-180x135.webp 180w, https:\/\/www.recycle-plant.com\/wp-content\/uploads\/2026\/02\/Sink-Float-Separation-Tank-Works-16x12.webp 16w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><figcaption class=\"wp-element-caption\">R\u00e9servoir de s\u00e9paration par immersion et flottement fonctionne<\/figcaption><\/figure>","protected":false},"excerpt":{"rendered":"<p>How do you separate PET flakes from bottle caps (PE) and rings (PP) automatically? The answer lies in the Sink-float separation tank, a masterclass in applying basic physics to industrial challenges. The principle is density separation. PET has a density of ~1.38g\/cm\u00b3, causing it to sink in water. Conversely, PP and PE have densities less [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":8719,"parent":0,"template":"","tags":[134],"info-type":[3],"class_list":["post-8718","info","type-info","status-publish","has-post-thumbnail","hentry","tag-pet","info-type-knowledge-base"],"taxonomy_info":{"post_tag":[{"value":134,"label":"PET"}],"info-type":[{"value":3,"label":"Knowledge Base"}]},"featured_image_src_large":["https:\/\/www.recycle-plant.com\/wp-content\/uploads\/2026\/02\/Sink-Float-Separation-Tank-Works.webp",720,540,false],"author_info":{"display_name":"Ella","author_link":"https:\/\/www.recycle-plant.com\/fr\/author\/admin\/"},"comment_info":"","_links":{"self":[{"href":"https:\/\/www.recycle-plant.com\/fr\/wp-json\/wp\/v2\/info\/8718","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.recycle-plant.com\/fr\/wp-json\/wp\/v2\/info"}],"about":[{"href":"https:\/\/www.recycle-plant.com\/fr\/wp-json\/wp\/v2\/types\/info"}],"author":[{"embeddable":true,"href":"https:\/\/www.recycle-plant.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.recycle-plant.com\/fr\/wp-json\/wp\/v2\/media\/8719"}],"wp:attachment":[{"href":"https:\/\/www.recycle-plant.com\/fr\/wp-json\/wp\/v2\/media?parent=8718"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.recycle-plant.com\/fr\/wp-json\/wp\/v2\/tags?post=8718"},{"taxonomy":"info-type","embeddable":true,"href":"https:\/\/www.recycle-plant.com\/fr\/wp-json\/wp\/v2\/info-type?post=8718"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}