{"id":14858,"date":"2026-01-07T07:34:58","date_gmt":"2026-01-07T07:34:58","guid":{"rendered":"https:\/\/www.ball-mill-classifiers.com\/?post_type=astra-portfolio&#038;p=14858"},"modified":"2026-01-07T07:35:00","modified_gmt":"2026-01-07T07:35:00","slug":"high-grade-cement-d90-20-%ce%bcm-ultrafine-grinding-production-line-in-lebanon","status":"publish","type":"astra-portfolio","link":"https:\/\/www.ball-mill-classifiers.com\/pt\/astra-portfolio\/high-grade-cement-d90-20-%ce%bcm-ultrafine-grinding-production-line-in-lebanon\/","title":{"rendered":"Linha de produ\u00e7\u00e3o de moagem ultrafina de cimento de alta qualidade (D90: 20 \u03bcm) no L\u00edbano"},"content":{"rendered":"<p><strong>Contexto do projeto:<\/strong> Uma importante fabricante de cimento no L\u00edbano buscava expandir sua atua\u00e7\u00e3o para o mercado de concretos especiais e materiais de constru\u00e7\u00e3o de alto desempenho. Para atingir esse objetivo, o cliente necessitava de uma solu\u00e7\u00e3o avan\u00e7ada de moagem ultrafina de cimento para processar ainda mais o cl\u00ednquer de cimento convencional em um p\u00f3 ultrafino. A finura exigida do produto era D90 \u2264 20 \u03bcm (correspondendo a uma \u00e1rea superficial espec\u00edfica de aproximadamente 600\u2013800 m\u00b2\/kg), significativamente mais fina que a do cimento Portland comum. O objetivo era aumentar a resist\u00eancia inicial e a densidade da matriz, incrementando a reatividade das part\u00edculas.<\/p>\n\n\n\n<p><strong>Principais desafios:<\/strong> <\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Caracter\u00edsticas do material:<\/strong> O cl\u00ednquer de cimento possui alta dureza (Mohs 5-6). Durante a moagem, ele gera calor com facilidade, o que pode afetar negativamente a efici\u00eancia da moagem.<\/li>\n\n\n\n<li><strong>Requisito de finura rigoroso:<\/strong> <strong>D90 = 20 \u03bcm<\/strong> enquadra-se na faixa de p\u00f3 ultrafino, al\u00e9m da capacidade dos separadores de cimento convencionais de atingir pontos de corte t\u00e3o precisos.<\/li>\n\n\n\n<li><strong>Controle do consumo de energia:<\/strong> Mantendo a finura extrema, o sistema otimiza o consumo de energia por tonelada para permanecer competitivo em termos de custos.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-solution-ball-mill-itc-ultrafine-air-classifier-cement-ultrafine-grinding-line\">Solu\u00e7\u00e3o: <a href=\"https:\/\/www.ball-mill-classifiers.com\/pt\/categoria-produto\/ball-mill-classifier\/\">Moinho de bolas<\/a> + ITC <a href=\"https:\/\/www.ball-mill-classifiers.com\/pt\/categoria-produto\/air-classifier\/\">Classificador de ar ultrafino<\/a> Linha de moagem ultrafina de cimento<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"750\" height=\"455\" src=\"https:\/\/www.ball-mill-classifiers.com\/wp-content\/uploads\/2025\/06\/ball-mill-8.webp\" alt=\"ball mill 8\" class=\"wp-image-14361\" srcset=\"https:\/\/www.ball-mill-classifiers.com\/wp-content\/uploads\/2025\/06\/ball-mill-8.webp 750w, https:\/\/www.ball-mill-classifiers.com\/wp-content\/uploads\/2025\/06\/ball-mill-8-300x182.webp 300w, https:\/\/www.ball-mill-classifiers.com\/wp-content\/uploads\/2025\/06\/ball-mill-8-18x12.webp 18w, https:\/\/www.ball-mill-classifiers.com\/wp-content\/uploads\/2025\/06\/ball-mill-8-600x364.webp 600w\" sizes=\"(max-width: 750px) 100vw, 750px\" \/><figcaption class=\"wp-element-caption\">moinho de bolas 8<\/figcaption><\/figure>\n\n\n\n<p><a href=\"https:\/\/www.ball-mill-classifiers.com\/pt\/\">P\u00f3 \u00e9pico<\/a> Para este projeto de moagem ultrafina de cimento, foi projetado um sistema personalizado de circuito fechado &quot;moinho de bolas + classificador&quot;, combinando o desempenho est\u00e1vel de moagem de um moinho de bolas com a capacidade de classifica\u00e7\u00e3o ultrafina de alta precis\u00e3o do classificador a ar da ITC.<\/p>\n\n\n\n<p><strong>Vantagens do Sistema Central<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Moinho de bolas:<\/strong> Servindo como unidade prim\u00e1ria de moagem, o moinho pr\u00e9-m\u00f3i o cl\u00ednquer at\u00e9 o tamanho intermedi\u00e1rio desejado, otimizando o projeto do revestimento e a granulometria dos meios de moagem (esferas de a\u00e7o \/ cilindros de a\u00e7o).<\/li>\n\n\n\n<li><strong>Classificador Vertical da S\u00e9rie ITC:<\/strong> O equipamento essencial para atingir D90 \u2264 20 \u03bcm.\n<ul class=\"wp-block-list\">\n<li><strong>Classifica\u00e7\u00e3o de alta precis\u00e3o:<\/strong> O classificador ITC apresenta um design vertical de rotor \u00fanico ou multirotor. Um inversor de frequ\u00eancia controla com precis\u00e3o a velocidade da roda do classificador, garantindo um ponto de corte extremamente est\u00e1vel.<\/li>\n\n\n\n<li><strong>Projeto de ar secund\u00e1rio:<\/strong> O sistema introduz ar secund\u00e1rio filtrado para separar completamente as part\u00edculas finas dos gr\u00e3os grossos, melhorando significativamente a efici\u00eancia da classifica\u00e7\u00e3o.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Fluxograma do processo<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Etapa de moagem:<\/strong> O cl\u00ednquer de cimento \u00e9 alimentado no moinho de bolas atrav\u00e9s do sistema de alimenta\u00e7\u00e3o. \u00c0 medida que o moinho gira, os elementos de moagem impactam e trituram o material.<\/li>\n\n\n\n<li><strong>Transporte pneum\u00e1tico:<\/strong> O sistema transporta o material mo\u00eddo at\u00e9 o classificador ultrafino da ITC utilizando um elevador de canecas ou um sistema de transporte por press\u00e3o negativa.<\/li>\n\n\n\n<li><strong>Classifica\u00e7\u00e3o precisa:<\/strong>\n<ul class=\"wp-block-list\">\n<li><strong>Produto fino de alta qualidade:<\/strong> O fluxo de ar transporta o p\u00f3 fino que atende ao requisito de D90 \u2264 20 \u03bcm atrav\u00e9s da roda classificadora. Um ciclone de alta efici\u00eancia e um filtro de mangas pulsado coletam o produto, que \u00e9 posteriormente embalado como sa\u00edda final.<\/li>\n\n\n\n<li><strong>Retorno de part\u00edculas grossas:<\/strong> Part\u00edculas de tamanho excessivo (&gt;20 \u03bcm) s\u00e3o descarregadas por gravidade a partir do fundo do classificador. Uma rosca transportadora leva essas part\u00edculas grossas de volta para a entrada do moinho de bolas para moagem secund\u00e1ria.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Refrigera\u00e7\u00e3o e controle de poeira:<\/strong> Todo o sistema opera sob press\u00e3o negativa. O fluxo de ar do processo ajuda a remover o calor da moagem, evitando a desidrata\u00e7\u00e3o do cimento.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Resultados do projeto<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Par\u00e2metro chave<\/th><th>Dados operacionais no local<\/th><\/tr><\/thead><tbody><tr><td>Material processado<\/td><td>cl\u00ednquer de cimento<\/td><\/tr><tr><td>Finura do produto<\/td><td>D90 \u2264 20 \u03bcm<\/td><\/tr><tr><td>\u00c1rea de superf\u00edcie espec\u00edfica<\/td><td>750 \u2013 800 m\u00b2\/kg<\/td><\/tr><tr><td>Precis\u00e3o da classifica\u00e7\u00e3o<\/td><td>Distribui\u00e7\u00e3o granulom\u00e9trica muito estreita, livre de contamina\u00e7\u00e3o por part\u00edculas grossas.<\/td><\/tr><tr><td>Desempenho ambiental<\/td><td>Concentra\u00e7\u00e3o de emiss\u00e3o &lt; 20 mg\/Nm\u00b3<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<div class=\"wp-block-contact-form-7-contact-form-selector\">\n<div class=\"wpcf7 no-js\" 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