{"id":14216,"date":"2025-04-09T06:10:15","date_gmt":"2025-04-09T06:10:15","guid":{"rendered":"https:\/\/www.ball-mill-classifiers.com\/?p=14216"},"modified":"2025-04-09T06:10:19","modified_gmt":"2025-04-09T06:10:19","slug":"steel-slag-grinding-pioneering-new-grinding-solutions-for-green-building-materials","status":"publish","type":"post","link":"https:\/\/www.ball-mill-classifiers.com\/fr\/steel-slag-grinding-pioneering-new-grinding-solutions-for-green-building-materials\/","title":{"rendered":"Broyage des scories d&#039;acier\u00a0: des solutions de broyage innovantes pour les mat\u00e9riaux de construction \u00e9cologiques"},"content":{"rendered":"<p>S<a href=\"https:\/\/www.ball-mill-classifiers.com\/fr\/\">scories d&#039;acier<\/a> est un d\u00e9chet industriel issu de la fabrication de l&#039;acier dans les convertisseurs et les fours \u00e0 arc \u00e9lectrique, principalement compos\u00e9 de silicate de calcium et de ferrite de calcium.<br>Il repr\u00e9sente environ 14% de la production d&#039;acier brut. Les laitiers d&#039;acier contiennent environ 50% de min\u00e9raux comme le silicate tricalcique (C3S) et le silicate dicalcique (C2S), qui ont des propri\u00e9t\u00e9s hydrauliques. <br>Actuellement, le broyage fin des laitiers d&#039;acier comme additifs pour ciment ou b\u00e9ton est un moyen important d&#039;obtenir une valorisation \u00e0 haute valeur ajout\u00e9e. Cependant, en raison de la ferrite de calcium, des phases d&#039;osmose inverse et du fer m\u00e9tallique, les laitiers d&#039;acier sont difficiles \u00e0 broyer. \u00c0 400 m\u00b2\/kg ou plus, les broyeurs \u00e0 boulets traditionnels augmentent consid\u00e9rablement la consommation d&#039;\u00e9nergie. C&#039;est pourquoi la Chine explore des technologies et des \u00e9quipements de broyage plus \u00e9conomes en \u00e9nergie.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"700\" height=\"440\" src=\"https:\/\/www.ball-mill-classifiers.com\/wp-content\/uploads\/2025\/04\/Steel-Slag.webp\" alt=\"Steel Slag\" class=\"wp-image-14217\" srcset=\"https:\/\/www.ball-mill-classifiers.com\/wp-content\/uploads\/2025\/04\/Steel-Slag.webp 700w, https:\/\/www.ball-mill-classifiers.com\/wp-content\/uploads\/2025\/04\/Steel-Slag-300x189.webp 300w, https:\/\/www.ball-mill-classifiers.com\/wp-content\/uploads\/2025\/04\/Steel-Slag-18x12.webp 18w, https:\/\/www.ball-mill-classifiers.com\/wp-content\/uploads\/2025\/04\/Steel-Slag-600x377.webp 600w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Caract\u00e9ristiques de broyage des scories d&#039;acier<\/h2>\n\n\n\n<p>Les scories d&#039;acier se forment \u00e0 haute temp\u00e9rature (sup\u00e9rieure \u00e0 1\u00a0580 \u00b0C), o\u00f9 elles absorbent des impuret\u00e9s comme FeO et MgO, formant de gros cristaux. L&#039;analyse p\u00e9trographique montre que les principaux composants min\u00e9raux des scories d&#039;acier sont le silicate tricalcique en plaques et le silicate dicalcique sph\u00e9rique ou arrondi. Viennent ensuite la ferrite de calcium et les phases RO. Le silicate tricalcique peut atteindre une taille maximale de 1\u00a0998 \u00b5m, avec des particules de MgO dans ses inclusions allant de 142 \u00e0 271 \u00b5m. Le fer m\u00e9tallique dans les scories d&#039;acier se pr\u00e9sente principalement sous forme d&#039;inclusions sph\u00e9riques, d&#039;une taille typique de 100 \u00e0 300 \u00b5m, et jusqu&#039;\u00e0 3 mm au maximum. Le silicate dicalcique peut \u00e9galement atteindre une taille de particules de 943 \u00b5m.<\/p>\n\n\n\n<p>Des \u00e9tudes comparatives des phases r\u00e9fractaires et des propri\u00e9t\u00e9s de cimentation des laitiers d&#039;acier ont r\u00e9v\u00e9l\u00e9 que les composants r\u00e9fractaires des laitiers d&#039;acier sont l&#039;aluminate de calcium et la solution solide de fer et de magn\u00e9sium. Ces phases pr\u00e9sentent une faible r\u00e9activit\u00e9 \u00e0 l&#039;hydratation. En revanche, le silicate tricalcique (C3S) et le silicate dicalcique (C2S) des laitiers d&#039;acier pr\u00e9sentent une meilleure broyabilit\u00e9, l\u00e9g\u00e8rement sup\u00e9rieure \u00e0 celle des laitiers. Cependant, leur r\u00e9activit\u00e9 \u00e0 l&#039;hydratation est nettement inf\u00e9rieure \u00e0 celle des laitiers. Les C3S et C2S des laitiers d&#039;acier ont dissous une quantit\u00e9 consid\u00e9rable d&#039;ions \u00e9trangers.<\/p>\n\n\n\n<p>Par cons\u00e9quent, pour activer les propri\u00e9t\u00e9s de cimentation hydraulique des C3S et C2S dans les laitiers d&#039;acier, ces derniers doivent \u00eatre finement broy\u00e9s. Cela entra\u00eenera une distorsion de la structure min\u00e9rale, une r\u00e9duction de la cristallinit\u00e9 et une diminution de l&#039;\u00e9nergie de liaison des cristaux min\u00e9raux. La r\u00e9activit\u00e9 est ainsi accrue, permettant un taux d&#039;incorporation plus \u00e9lev\u00e9 des laitiers d&#039;acier dans le ciment et le b\u00e9ton.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Technologie de broyage des scories d&#039;acier<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Processus de broyage avec broyeur \u00e0 boulets comme \u00e9quipement de broyage final<\/h3>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"750\" height=\"750\" src=\"https:\/\/www.ball-mill-classifiers.com\/wp-content\/uploads\/2025\/04\/ball-mill.webp\" alt=\"ball mill\" class=\"wp-image-14218\" srcset=\"https:\/\/www.ball-mill-classifiers.com\/wp-content\/uploads\/2025\/04\/ball-mill.webp 750w, https:\/\/www.ball-mill-classifiers.com\/wp-content\/uploads\/2025\/04\/ball-mill-300x300.webp 300w, https:\/\/www.ball-mill-classifiers.com\/wp-content\/uploads\/2025\/04\/ball-mill-100x100.webp 100w, https:\/\/www.ball-mill-classifiers.com\/wp-content\/uploads\/2025\/04\/ball-mill-12x12.webp 12w, https:\/\/www.ball-mill-classifiers.com\/wp-content\/uploads\/2025\/04\/ball-mill-600x600.webp 600w\" sizes=\"(max-width: 750px) 100vw, 750px\" \/><\/figure>\n\n\n\n<p>Le<a href=\"https:\/\/www.ball-mill-classifiers.com\/fr\/categorie-produit\/ball-mill-classifier\/\"> broyeur \u00e0 billes<\/a> Il s&#039;agit d&#039;un appareil traditionnel de broyage de mat\u00e9riaux apr\u00e8s un simple concassage m\u00e9canique. Gr\u00e2ce aux progr\u00e8s constants de la technologie des broyeurs \u00e0 boulets, il est d\u00e9sormais capable de broyer des substances dures, comme les scories d&#039;acier. Les broyeurs \u00e0 boulets offrent une grande adaptabilit\u00e9 et un taux de concassage \u00e9lev\u00e9. Ils permettent le broyage et le s\u00e9chage simultan\u00e9s. Leur structure est simple et leur entretien est ais\u00e9. Ils offrent une bonne \u00e9tanch\u00e9it\u00e9, un fonctionnement stable et des performances fiables. Ces caract\u00e9ristiques en font un outil tr\u00e8s appr\u00e9ci\u00e9, notamment pour le broyage du ciment. Leur histoire est presque aussi ancienne que celle de l&#039;industrie cimenti\u00e8re elle-m\u00eame.<\/p>\n\n\n\n<p>Le broyeur \u00e0 boulets permet d&#039;ajuster les sp\u00e9cifications des corps de broyage et des mat\u00e9riaux en fonction des propri\u00e9t\u00e9s des mat\u00e9riaux. Il est ainsi capable de broyer des scories d&#039;acier dures. Cependant, le broyage de poudre de scories d&#039;acier d&#039;une surface sp\u00e9cifique de 400 m\u00b2\/kg consomme environ 100 kWh\/t. Malgr\u00e9 ses avantages, le broyeur \u00e0 boulets pr\u00e9sente des inconv\u00e9nients majeurs\u00a0: sa configuration est co\u00fbteuse, il s&#039;use fortement, son rendement est faible et sa consommation \u00e9nerg\u00e9tique est \u00e9lev\u00e9e.<\/p>\n\n\n\n<p>Pour la production de ciment, la consommation d&#039;\u00e9nergie par tonne de ciment est d&#039;au moins 70 kWh, dont seulement environ 51 TP3T sont utilis\u00e9s pour augmenter la surface du mat\u00e9riau. La majeure partie de cette \u00e9nergie est convertie en chaleur et en \u00e9nergie acoustique, qui sont gaspill\u00e9es. La forte consommation d&#039;\u00e9nergie et les pertes de broyage importantes limitent le d\u00e9veloppement des broyeurs \u00e0 boulets dans le domaine du broyage des scories d&#039;acier.<\/p>\n\n\n\n<p>C&#039;est pourquoi l&#039;industrie du meulage se concentre sur l&#039;am\u00e9lioration de l&#039;efficacit\u00e9 du meulage. Elle vise \u00e0 r\u00e9duire la consommation d&#039;\u00e9nergie et \u00e0 minimiser l&#039;usure de l&#039;acier. Cela stimule la recherche et le d\u00e9veloppement de nouveaux \u00e9quipements et technologies de meulage.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Le processus de broyage combin\u00e9 de la presse \u00e0 rouleaux et du broyeur \u00e0 boulets<\/h2>\n\n\n\n<p>Le proc\u00e9d\u00e9 de broyage combin\u00e9 d&#039;une presse \u00e0 rouleaux et d&#039;un broyeur \u00e0 boulets consomme moins d&#039;\u00e9nergie que l&#039;utilisation du broyeur \u00e0 boulets seul. La consommation d&#039;\u00e9nergie par tonne de poudre de laitier d&#039;acier d&#039;une surface sp\u00e9cifique de 400 m\u00b2\/kg est d&#039;environ 80 kWh\/t.<br>Cependant, le syst\u00e8me est toujours confront\u00e9 \u00e0 certains probl\u00e8mes limitant la production continue, tels que l&#039;accumulation de fer m\u00e9tallique, la faible efficacit\u00e9 de s\u00e9chage, la faible efficacit\u00e9 de classification et le contr\u00f4le de l&#039;alimentation de la presse \u00e0 rouleaux.<br>N\u00e9anmoins, cela d\u00e9montre que la technologie de broyage combin\u00e9e est plus avantageuse que la technologie de broyage \u00e0 une seule \u00e9tape pour le broyage des scories d&#039;acier.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Conclusion<\/h2>\n\n\n\n<p>En conclusion, le broyage des scories d&#039;acier joue un r\u00f4le crucial dans leur valorisation en les transformant en mat\u00e9riaux utiles pour la production de ciment et de b\u00e9ton. Les technologies de broyage avanc\u00e9es, telles que les syst\u00e8mes combin\u00e9s de presses \u00e0 rouleaux et de broyeurs \u00e0 boulets, permettent des \u00e9conomies d&#039;\u00e9nergie significatives et une meilleure efficacit\u00e9. Cependant, des d\u00e9fis tels que l&#039;accumulation de fer et une faible efficacit\u00e9 de classification persistent. Le d\u00e9veloppement et l&#039;optimisation continus des techniques de broyage permettront de lib\u00e9rer davantage le potentiel des scories d&#039;acier dans diverses applications industrielles.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe title=\"Syst\u00e8me de production de broyeur \u00e0 boulets et de classificateur, pour carbonate de calcium, D97 5 microns, 1 t\/h\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/Fl5gIAUtL8U?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Poudre \u00e9pique<\/h2>\n\n\n\n<p><a href=\"https:\/\/www.ball-mill-classifiers.com\/fr\/about-us\/\">Poudre \u00e9pique<\/a>Plus de 20 ans d&#039;exp\u00e9rience dans l&#039;industrie des poudres ultrafines. Nous promouvons activement le d\u00e9veloppement futur des poudres ultrafines, en nous concentrant sur les proc\u00e9d\u00e9s de concassage, de broyage, de classification et de modification. Contactez-nous pour une consultation gratuite et des solutions personnalis\u00e9es\u00a0! Notre \u00e9quipe d&#039;experts s&#039;engage \u00e0 fournir des produits et services de haute qualit\u00e9 pour optimiser la valeur de vos proc\u00e9d\u00e9s de traitement des poudres. Epic Powder\u00a0: votre expert de confiance en traitement des poudres\u00a0!<\/p>\n\n\n\n<div class=\"wp-block-contact-form-7-contact-form-selector\">\n<div class=\"wpcf7 no-js\" id=\"wpcf7-f14067-o1\" lang=\"zh-CN\" dir=\"ltr\" data-wpcf7-id=\"14067\">\n<div class=\"screen-reader-response\"><p role=\"status\" aria-live=\"polite\" aria-atomic=\"true\"><\/p> <ul><\/ul><\/div>\n<form action=\"\/fr\/wp-json\/wp\/v2\/posts\/14216#wpcf7-f14067-o1\" method=\"post\" class=\"wpcf7-form init\" aria-label=\"\u7559\u8a00\u8868\u5355\" novalidate=\"novalidate\" data-status=\"init\" data-trp-original-action=\"\/fr\/wp-json\/wp\/v2\/posts\/14216#wpcf7-f14067-o1\">\n<fieldset class=\"hidden-fields-container\"><input type=\"hidden\" name=\"_wpcf7\" value=\"14067\" \/><input type=\"hidden\" name=\"_wpcf7_version\" value=\"6.1.4\" \/><input type=\"hidden\" name=\"_wpcf7_locale\" value=\"zh_CN\" \/><input type=\"hidden\" name=\"_wpcf7_unit_tag\" value=\"wpcf7-f14067-o1\" \/><input type=\"hidden\" 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data-name=\"tel-901\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-tel wpcf7-validates-as-required wpcf7-text wpcf7-validates-as-tel\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"Votre t\u00e9l\u00e9phone ou Whatsapp*\" value=\"\" type=\"tel\" name=\"tel-901\" \/><\/span>\n\t\t<\/p>\n\t<\/div>\n\t<div class=\"one-half last\">\n\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"your-subject\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text\" aria-invalid=\"false\" placeholder=\"Votre entreprise\" value=\"\" type=\"text\" name=\"your-subject\" \/><\/span>\n\t\t<\/p>\n\t<\/div>\n\t<div>\n\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"your-message\"><textarea cols=\"40\" rows=\"3\" maxlength=\"2000\" class=\"wpcf7-form-control wpcf7-textarea\" aria-invalid=\"false\" placeholder=\"Votre message\" name=\"your-message\"><\/textarea><\/span>\n\t\t<\/p>\n\t<\/div>\n\t<div>\n\t\t<p><span class=\"wpcf7-form-control-wrap kc_captcha\" data-name=\"kc_captcha\"><span class=\"wpcf7-form-control wpcf7-radio\"><span class=\"captcha-image\" ><span class=\"cf7ic_instructions\">Veuillez prouver que vous \u00eates humain en s\u00e9lectionnant le<span> drapeau<\/span>\u3002<\/span><label><input aria-label=\"1\" type=\"radio\" name=\"kc_captcha\" value=\"bot\" \/><svg aria-hidden=\"true\" role=\"img\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 576 512\"><path fill=\"currentColor\" d=\"M415 24c-53 0-103 42-127 65-24-23-74-65-127-65C70 24 16 77 16 166c0 72 67 133 69 135l187 181c9 8 23 8 32 0l187-180c2-3 69-64 69-136 0-89-54-142-145-142z\"\/><\/svg><\/label><label><input aria-label=\"2\" type=\"radio\" name=\"kc_captcha\" value=\"bot\" \/><svg aria-hidden=\"true\" role=\"img\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 512 512\"><path fill=\"currentColor\" d=\"M500 168h-55l-8-21a127 127 0 00-120-83H195a127 127 0 00-120 83l-8 21H12c-8 0-14 8-11 16l8 24a12 12 0 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name=\"kc_honeypot\">\r\n    <\/span><\/span><\/span>\n\t\t<\/p>\n\t<\/div>\n\t<div>\n\t\t<p><input class=\"wpcf7-form-control wpcf7-submit has-spinner\" type=\"submit\" value=\"Soumettre\" \/>\n\t\t<\/p>\n\t<\/div>\n<\/div>\n<style>\n.keen-form div{margin-bottom:0px;}\n.keen-form div p{margin-bottom:0px !important;}\n.one-half,.one-third {\n position: relative;\n margin-right: 4%;\n float: left;\n z-index: 99;\n}\n.one-half { width: 48%; }\n.one-third { width: 30.66%; }\n.last {\n margin-right: 0 !important;\n clear: right;\n}\n@media only screen and (max-width: 767px) {\n .one-half, .one-third {\n width: 100%;\n margin-right: 0;\n }\n}\n<\/style><div class=\"wpcf7-response-output\" aria-hidden=\"true\"><\/div>\n<input type=\"hidden\" name=\"trp-form-language\" value=\"fr\"\/><\/form>\n<\/div>\n<\/div>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>Le laitier d&#039;acier est un d\u00e9chet industriel issu de la fabrication de l&#039;acier dans les convertisseurs et les fours \u00e0 arc \u00e9lectrique. Il est principalement compos\u00e9 de silicate de calcium et de ferrite de calcium. Il repr\u00e9sente environ 141 TP3T de la production d&#039;acier brut. [\u2026]<\/p>","protected":false},"author":1,"featured_media":14219,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center 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