{"id":22656,"date":"2024-08-22T15:05:40","date_gmt":"2024-08-22T07:05:40","guid":{"rendered":"https:\/\/www.jxscmachine.com\/?post_type=new&#038;p=22656"},"modified":"2024-09-11T14:30:46","modified_gmt":"2024-09-11T06:30:46","slug":"seis-factores-que-afectam-a-flotacao-do-minerio-de-chumbo-e-zinco","status":"publish","type":"new","link":"https:\/\/www.jxscmachine.com\/pt\/new\/six-factors-affecting-flotation-lead-zinc-ore\/","title":{"rendered":"Seis factores que afectam a flota\u00e7\u00e3o do min\u00e9rio de chumbo-zinco"},"content":{"rendered":"<p>O processo de flota\u00e7\u00e3o do min\u00e9rio de chumbo-zinco \u00e9 um dos meios importantes para extrair min\u00e9rio de chumbo-zinco, principalmente porque os elementos da sua composi\u00e7\u00e3o mineral s\u00e3o mais numerosos e a capacidade de flutua\u00e7\u00e3o apresenta diferen\u00e7as \u00f3bvias. A flota\u00e7\u00e3o pode obter melhores <a href=\"https:\/\/www.jxscmachine.com\/pt\/solucoes\/processamento-de-chumbo\/\">chumbo<\/a> e <a href=\"https:\/\/www.jxscmachine.com\/pt\/solucoes\/processamento-do-zinco\/\">zinco<\/a> minerais, mas existem muitos factores que afectam o efeito da flota\u00e7\u00e3o. Este artigo explicar\u00e1 os <strong>seis raz\u00f5es principais que afectam a flota\u00e7\u00e3o do min\u00e9rio de chumbo-zinco.<\/strong><\/p>\n<h2>1. Finura de moagem<\/h2>\n<p>O tamanho das part\u00edculas de flota\u00e7\u00e3o \u00e9 um fator ajust\u00e1vel, muitas vezes expresso como finura de moagem, e \u00e9 conseguido principalmente atrav\u00e9s de opera\u00e7\u00f5es de tritura\u00e7\u00e3o e moagem. Durante o processo de flota\u00e7\u00e3o, o min\u00e9rio precisa de ser totalmente triturado e mo\u00eddo para expor a superf\u00edcie mineral flutu\u00e1vel. Requer a dissocia\u00e7\u00e3o dos mon\u00f3meros minerais e a moagem at\u00e9 uma finura adequada. Se as part\u00edculas de min\u00e9rio forem demasiado grossas, mesmo que os mon\u00f3meros minerais tenham sido dissociados, n\u00e3o flutuar\u00e3o porque excedem a capacidade de flutua\u00e7\u00e3o das bolhas. O limite superior do tamanho das part\u00edculas de flota\u00e7\u00e3o de v\u00e1rios minerais \u00e9 diferente. Por exemplo, os min\u00e9rios de sulfureto s\u00e3o geralmente 0.2~0.5mm, e os min\u00e9rios n\u00e3o-sulfuretos s\u00e3o 0.25~0.3mm. Se as part\u00edculas de min\u00e9rio forem mo\u00eddas muito finamente, como menos de 0,01 mm, elas n\u00e3o flutuar\u00e3o bem. Por conseguinte, a moagem por flota\u00e7\u00e3o exige que os mon\u00f3meros minerais sejam dissociados, mas n\u00e3o demasiado grosseiros ou \"excessivamente triturados\". Para min\u00e9rios impregnados com part\u00edculas extremamente finas, uma vez que o grau de dissocia\u00e7\u00e3o dos mon\u00f3meros requer uma moagem muito fina, \u00e9 normalmente necess\u00e1rio adicionar um dispersante de lodo durante a flota\u00e7\u00e3o, ou utilizar a flota\u00e7\u00e3o de flocula\u00e7\u00e3o selectiva (adicionando floculantes selectivos) ou realizar a \"separa\u00e7\u00e3o de lama e areia\" (ou seja, o processo de tratamento de lama fina e areia grossa separadamente).<\/p>\n<p>&nbsp;<\/p>\n<figure id=\"attachment_21381\" aria-describedby=\"caption-attachment-21381\" style=\"width: 770px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/www.jxscmachine.com\/wp-content\/uploads\/2023\/09\/ball-mill.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-21381\" src=\"https:\/\/www.jxscmachine.com\/wp-content\/uploads\/2023\/09\/ball-mill.jpg\" alt=\"moinho de bolas\" width=\"770\" height=\"564\" srcset=\"https:\/\/www.jxscmachine.com\/wp-content\/uploads\/2023\/09\/ball-mill.jpg 770w, https:\/\/www.jxscmachine.com\/wp-content\/uploads\/2023\/09\/ball-mill-768x563.jpg 768w\" sizes=\"auto, (max-width: 770px) 100vw, 770px\" \/><\/a><figcaption id=\"caption-attachment-21381\" class=\"wp-caption-text\">moinho de bolas<\/figcaption><\/figure>\n<p>&nbsp;<\/p>\n<h2>2. Concentra\u00e7\u00e3o da lama<\/h2>\n<p>O ajuste da lama antes da flota\u00e7\u00e3o \u00e9 uma parte importante do processo de flota\u00e7\u00e3o. Antes de a lama entrar no <a href=\"https:\/\/www.jxscmachine.com\/pt\/equipamento-de-flotacao\/maquina-de-flotacao\/\">m\u00e1quina de flota\u00e7\u00e3o<\/a>A concentra\u00e7\u00e3o do fluxo de classifica\u00e7\u00e3o e da opera\u00e7\u00e3o de desbaste \u00e9 quase a mesma que a concentra\u00e7\u00e3o do fluxo de classifica\u00e7\u00e3o. Na maioria dos casos, a concentra\u00e7\u00e3o do ajuste da lama e da opera\u00e7\u00e3o de desbaste \u00e9 quase a mesma que a concentra\u00e7\u00e3o do excesso de classifica\u00e7\u00e3o. O ajuste da concentra\u00e7\u00e3o da lama tamb\u00e9m \u00e9 limitado pela finura. Quando a finura \u00e9 necess\u00e1ria para ser fina, o transbordamento de classifica\u00e7\u00e3o \u00e9 mais fino; quando a finura \u00e9 necess\u00e1ria para ser grossa, o transbordamento de classifica\u00e7\u00e3o \u00e9 <a href=\"https:\/\/www.jxscmachine.com\/pt\/maquina-de-desidratacao\/espessante\/\">mais espesso<\/a>. Na produ\u00e7\u00e3o real, a opera\u00e7\u00e3o de desbaste utiliza uma lama mais espessa para economizar reagentes; a utiliza\u00e7\u00e3o de uma concentra\u00e7\u00e3o mais fina de min\u00e9rio para a sele\u00e7\u00e3o fina \u00e9 conducente \u00e0 melhoria do grau do concentrado; a concentra\u00e7\u00e3o da opera\u00e7\u00e3o de limpeza \u00e9 afetada pela opera\u00e7\u00e3o de desbaste e geralmente n\u00e3o \u00e9 controlada separadamente. A concentra\u00e7\u00e3o da lama da opera\u00e7\u00e3o de desbaste e de limpeza tamb\u00e9m afecta o tempo de flota\u00e7\u00e3o, porque quando a m\u00e1quina de flota\u00e7\u00e3o est\u00e1 configurada at\u00e9 certo ponto, o seu volume efetivo \u00e9 uma determinada concentra\u00e7\u00e3o de lama, e o tempo de fluxo (ou seja, o tempo de flota\u00e7\u00e3o) \u00e9 mais longo; quanto mais fina for a lama, mais curto ser\u00e1 o tempo de fluxo.<\/p>\n<table style=\"border-collapse: collapse; width: 100%;\" border=\"0\">\n<tbody>\n<tr>\n<td style=\"width: 50%;\"><a href=\"https:\/\/www.jxscmachine.com\/wp-content\/uploads\/2022\/12\/flotation-machine-221201.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-20030\" src=\"https:\/\/www.jxscmachine.com\/wp-content\/uploads\/2022\/12\/flotation-machine-221201.jpg\" alt=\"m\u00e1quina de flota\u00e7\u00e3o\" width=\"788\" height=\"486\" srcset=\"https:\/\/www.jxscmachine.com\/wp-content\/uploads\/2022\/12\/flotation-machine-221201.jpg 788w, https:\/\/www.jxscmachine.com\/wp-content\/uploads\/2022\/12\/flotation-machine-221201-768x474.jpg 768w\" sizes=\"auto, (max-width: 788px) 100vw, 788px\" \/><\/a> m\u00e1quina de flota\u00e7\u00e3o<\/td>\n<td style=\"width: 50%;\"><a href=\"https:\/\/www.jxscmachine.com\/wp-content\/uploads\/2018\/02\/\u6d53\u7f29\u673a010300.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-1991\" src=\"https:\/\/www.jxscmachine.com\/wp-content\/uploads\/2018\/02\/\u6d53\u7f29\u673a010300.jpg\" alt=\"Espessante\" width=\"750\" height=\"750\" srcset=\"https:\/\/www.jxscmachine.com\/wp-content\/uploads\/2018\/02\/\u6d53\u7f29\u673a010300.jpg 750w, https:\/\/www.jxscmachine.com\/wp-content\/uploads\/2018\/02\/\u6d53\u7f29\u673a010300-150x150.jpg 150w, https:\/\/www.jxscmachine.com\/wp-content\/uploads\/2018\/02\/\u6d53\u7f29\u673a010300-300x300.jpg 300w, https:\/\/www.jxscmachine.com\/wp-content\/uploads\/2018\/02\/\u6d53\u7f29\u673a010300-75x75.jpg 75w\" sizes=\"auto, (max-width: 750px) 100vw, 750px\" \/><\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>3. Reagentes<\/h2>\n<p>O <a href=\"https:\/\/www.jxscmachine.com\/pt\/novo\/factores-de-flotacao-dos-minerios-de-chumbo-e-zinco-que-afectam-os-reagentes\/\">ajustamento dos reagentes<\/a> no processo de flota\u00e7\u00e3o inclui <strong>exercer efic\u00e1cia, adi\u00e7\u00e3o razo\u00e1vel, utiliza\u00e7\u00e3o mista, ajustar a concentra\u00e7\u00e3o de reagentes na pasta e controlar o valor do pH.<\/strong>&nbsp;Para mais informa\u00e7\u00f5es sobre estes temas, consulte as actualiza\u00e7\u00f5es posteriores do blogue.<\/p>\n<p>&nbsp;<\/p>\n<h2>4. Ajuste da espuma<\/h2>\n<p>A flota\u00e7\u00e3o de espuma \u00e9 um processo de sele\u00e7\u00e3o na interface l\u00edquido-g\u00e1s, pelo que a espuma desempenha um papel importante. O tamanho e o n\u00famero de bolhas, a estabilidade da espuma e a espessura da camada de espuma est\u00e3o relacionados com o tipo de m\u00e1quina de flota\u00e7\u00e3o utilizada (principalmente a quantidade de arejamento e a intensidade da agita\u00e7\u00e3o), as propriedades do min\u00e9rio, o sistema de reagentes e outros factores. Quando as outras condi\u00e7\u00f5es se mant\u00eam inalteradas, a espessura da camada de espuma \u00e9 ajustada principalmente atrav\u00e9s do controlo da superf\u00edcie da lama. A pr\u00e1tica tem demonstrado que, para estabilizar a opera\u00e7\u00e3o de flota\u00e7\u00e3o, \u00e9 necess\u00e1rio manter uma certa espessura da camada de espuma. Quando a camada de espuma \u00e9 mais espessa, o grau do concentrado \u00e9 mais elevado.<\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/www.jxscmachine.com\/wp-content\/uploads\/2024\/08\/flotation-process.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-22657\" src=\"https:\/\/www.jxscmachine.com\/wp-content\/uploads\/2024\/08\/flotation-process.jpg\" alt=\"processo de flota\u00e7\u00e3o\" width=\"1210\" height=\"676\" srcset=\"https:\/\/www.jxscmachine.com\/wp-content\/uploads\/2024\/08\/flotation-process.jpg 1210w, https:\/\/www.jxscmachine.com\/wp-content\/uploads\/2024\/08\/flotation-process-768x429.jpg 768w, https:\/\/www.jxscmachine.com\/wp-content\/uploads\/2024\/08\/flotation-process-18x10.jpg 18w\" sizes=\"auto, (max-width: 1210px) 100vw, 1210px\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<h2>5. Influ\u00eancia da temperatura<\/h2>\n<p>A temperatura da lama pode afetar a taxa de rea\u00e7\u00e3o qu\u00edmica entre a superf\u00edcie do mineral e o reagente e desempenha frequentemente um papel importante no processo de flota\u00e7\u00e3o. No entanto, atualmente, a maioria das instala\u00e7\u00f5es de flota\u00e7\u00e3o realizam a flota\u00e7\u00e3o \u00e0 temperatura ambiente, ou seja, a temperatura do chorume n\u00e3o \u00e9 controlada e varia com a temperatura do ar. O aquecimento da flota\u00e7\u00e3o decorre de dois requisitos. Uma \u00e9 a natureza do reagente. Alguns reagentes s\u00f3 podem desempenhar o seu papel efetivo a uma temperatura mais elevada. A outra \u00e9 que alguns processos especiais de flota\u00e7\u00e3o exigem que a temperatura do mineral seja aumentada para atingir o objetivo de separa\u00e7\u00e3o do mineral. O vapor ou a \u00e1gua quente s\u00e3o frequentemente utilizados para o aquecimento da pasta. Com o desenvolvimento da tecnologia <a href=\"https:\/\/www.jxscmachine.com\/pt\/processo-de-flotacao-de-minerais-de-sulfureto\/\">processo de flota\u00e7\u00e3o de min\u00e9rios de sulfuretos complexos<\/a>. \u00c9 necess\u00e1rio encontrar um m\u00e9todo de separa\u00e7\u00e3o mais eficaz. Por conseguinte, foram realizados muitos estudos sobre a separa\u00e7\u00e3o por flota\u00e7\u00e3o com aquecimento de cobre-chumbo, cobre-molibd\u00e9nio, zinco-enxofre, cobre-n\u00edquel, etc., e foram aplicados em algumas instala\u00e7\u00f5es de processamento de minerais no pa\u00eds e no estrangeiro. Por exemplo, na separa\u00e7\u00e3o do concentrado misto de cobre e enxofre, o aquecimento a vapor pode substituir a cal para suprimir o enxofre e flutuar o cobre.<\/p>\n<p>&nbsp;<\/p>\n<h2>6. Influ\u00eancia da qualidade da \u00e1gua<\/h2>\n<p>A flota\u00e7\u00e3o \u00e9 efectuada em \u00e1gua. A \"dureza\" da \u00e1gua (dependendo do teor de Ca2+ e Mg2+), a \"turva\u00e7\u00e3o\" da \u00e1gua (o teor de impurezas s\u00f3lidas por unidade de volume) e a sua composi\u00e7\u00e3o tamb\u00e9m t\u00eam impacto na flota\u00e7\u00e3o. A \u00e1gua utilizada para a flota\u00e7\u00e3o varia de local para local e de tempo para tempo. No estudo da tecnologia de flota\u00e7\u00e3o, deve ser dada aten\u00e7\u00e3o \u00e0 qualidade da \u00e1gua utilizada para a flota\u00e7\u00e3o. Para poupar recursos h\u00eddricos, a utiliza\u00e7\u00e3o de \u00e1gua de retorno tem recebido cada vez mais aten\u00e7\u00e3o. A carater\u00edstica da \u00e1gua de retorno da flota\u00e7\u00e3o \u00e9 que ela cont\u00e9m mais reagentes org\u00e2nicos e inorg\u00e2nicos. A utiliza\u00e7\u00e3o de \u00e1gua de retorno pode poupar reagentes; mas devido \u00e0 sua composi\u00e7\u00e3o complexa, uma utiliza\u00e7\u00e3o incorrecta afectar\u00e1 o efeito de triagem. A pr\u00e1tica tem mostrado que a utiliza\u00e7\u00e3o de \u00e1gua de retorno para a flota\u00e7\u00e3o de min\u00e9rios monomet\u00e1licos \u00e9 relativamente simples. Ao selecionar min\u00e9rios polimet\u00e1licos, a reciclagem da \u00e1gua de retorno \u00e9 mais complicada. \u00c9 necess\u00e1rio efetuar uma an\u00e1lise exaustiva da qualidade da \u00e1gua de cada fase de flota\u00e7\u00e3o antes de se poder tomar uma decis\u00e3o adequada sobre o plano de utiliza\u00e7\u00e3o.<\/p>\n<p>&nbsp;<\/p>\n<p>O presente documento aborda a influ\u00eancia de diferentes factores no processo de flota\u00e7\u00e3o do min\u00e9rio de chumbo-zinco, sob o ponto de vista <strong><b>finura da moagem, concentra\u00e7\u00e3o da lama, adi\u00e7\u00e3o de reagentes, ajuste da espuma, temperatura e qualidade da \u00e1gua<\/b><\/strong>. Espero que seja \u00fatil para o seu processo de flota\u00e7\u00e3o de min\u00e9rio de chumbo-zinco.<\/p>","protected":false},"excerpt":{"rendered":"<p>O processo de flota\u00e7\u00e3o do min\u00e9rio de chumbo-zinco \u00e9 um dos meios importantes para extrair min\u00e9rio de chumbo-zinco, principalmente porque os elementos da sua composi\u00e7\u00e3o mineral s\u00e3o mais numerosos e a flutuabilidade apresenta diferen\u00e7as \u00f3bvias. A flota\u00e7\u00e3o pode obter melhores minerais de chumbo e zinco, mas h\u00e1 muitos factores que afectam o efeito da flota\u00e7\u00e3o. Este artigo explica os seis principais factores ... <a href=\"https:\/\/www.jxscmachine.com\/pt\/new\/six-factors-affecting-flotation-lead-zinc-ore\/\" class=\"more-link\">Continuar a ler <span class=\"screen-reader-text\">Seis factores que afectam a flota\u00e7\u00e3o do min\u00e9rio de chumbo-zinco<\/span><\/a><\/p>","protected":false},"author":1,"featured_media":22657,"parent":0,"menu_order":84,"comment_status":"closed","ping_status":"open","template":"","format":"standard","meta":{"_acf_changed":false,"ngg_post_thumbnail":0,"footnotes":""},"categories":[],"tags":[],"class_list":["post-22656","new","type-new","status-publish","format-standard","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Six Factors Affecting The Flotation of Lead-zinc Ore - JXSC Machine<\/title>\n<meta name=\"description\" content=\"The flotation process of lead-zinc ore is one of the important means to extract lead-zinc ore, mainly because its mineral composition elements are more and the floatability has obvious differences.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.jxscmachine.com\/pt\/novo\/seis-factores-que-afectam-a-flotacao-do-minerio-de-chumbo-e-zinco\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Six Factors Affecting The Flotation of Lead-zinc Ore - 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