{"id":3543,"date":"2025-11-14T15:45:12","date_gmt":"2025-11-14T07:45:12","guid":{"rendered":"https:\/\/quartz-grinding.epic-powder.com\/?p=3543"},"modified":"2025-11-18T16:03:55","modified_gmt":"2025-11-18T08:03:55","slug":"how-to-achieve-precise-classification-of-ultrafine-quartz-powder","status":"publish","type":"post","link":"https:\/\/quartz-grinding.epic-powder.com\/pt\/how-to-achieve-precise-classification-of-ultrafine-quartz-powder\/","title":{"rendered":"Como obter uma classifica\u00e7\u00e3o precisa de p\u00f3 de quartzo ultrafino?"},"content":{"rendered":"<p><a href=\"https:\/\/quartz-grinding.epic-powder.com\/pt\/machines\/\">p\u00f3 de quartzo ultrafino<\/a> O p\u00f3 de quartzo ultrafino (D50 2\u201310 \u03bcm, D90 &lt; 15 \u03bcm) \u00e9 amplamente utilizado em encapsulamento eletr\u00f4nico, fundi\u00e7\u00e3o de precis\u00e3o, vidro \u00f3ptico, revestimentos, cer\u00e2mica de quartzo, materiais semicondutores e outras ind\u00fastrias de ponta. Nessas aplica\u00e7\u00f5es, a distribui\u00e7\u00e3o do tamanho das part\u00edculas, a morfologia, a pureza e a estabilidade determinam diretamente o desempenho do material final. Com a crescente demanda por p\u00f3 de quartzo de alta pureza, a obten\u00e7\u00e3o de uma classifica\u00e7\u00e3o precisa, control\u00e1vel e altamente repet\u00edvel tornou-se a principal vantagem competitiva das empresas de processamento de p\u00f3. Para alcan\u00e7ar a classifica\u00e7\u00e3o precisa do p\u00f3 de quartzo ultrafino, as linhas de produ\u00e7\u00e3o dependem principalmente de classificadores a ar, especialmente classificadores a ar multirrotores horizontais ou verticais. Essas m\u00e1quinas utilizam a din\u00e2mica de fluidos \u2014 for\u00e7a inercial, for\u00e7a centr\u00edfuga e arrasto aerodin\u00e2mico \u2014 para separar part\u00edculas de diferentes tamanhos com alta precis\u00e3o.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"680\" src=\"https:\/\/quartz-grinding.epic-powder.com\/wp-content\/uploads\/2025\/05\/high-purity-quartz-1024x680.webp\" alt=\"quartzo de alta pureza\" class=\"wp-image-3171\"\/><figcaption class=\"wp-element-caption\">quartzo de alta pureza<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Desafios t\u00e9cnicos em <a href=\"https:\/\/quartz-grinding.epic-powder.com\/pt\/machines\/horizontal-air-classifier\/\">Classifica\u00e7\u00e3o<\/a> de p\u00f3 de quartzo ultrafino <\/h2>\n\n\n\n<p>O quartzo (SiO\u2082) possui diversas caracter\u00edsticas que dificultam a classifica\u00e7\u00e3o precisa:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Alta dureza (Mohs 7)<\/strong><br>\u2192 Ap\u00f3s a moagem, as part\u00edculas ficam irregulares e angulares; o formato afeta fortemente o desempenho da classifica\u00e7\u00e3o.<\/li>\n\n\n\n<li><strong>Alta densidade (2,65 g\/cm\u00b3)<\/strong><br>\u2192 A velocidade de sedimenta\u00e7\u00e3o \u00e9 r\u00e1pida; part\u00edculas finas ficam facilmente retidas entre as part\u00edculas mais grossas.<\/li>\n\n\n\n<li><strong>Tend\u00eancia \u00e0 aglomera\u00e7\u00e3o fina<\/strong><br>\u2192 Part\u00edculas ultrafinas com tamanho inferior a 5 \u03bcm tendem a formar aglomerados macios devido \u00e0 eletricidade est\u00e1tica e \u00e0s for\u00e7as de Van der Waals.<\/li>\n\n\n\n<li><strong>Requisitos de alta pureza<\/strong><br>\u2192 O quartzo de grau eletr\u00f4nico deve evitar contamina\u00e7\u00e3o por metais; o sistema de classifica\u00e7\u00e3o deve ser totalmente cer\u00e2mico.<\/li>\n<\/ul>\n\n\n\n<p>Portanto, garantir simultaneamente uma distribui\u00e7\u00e3o granulom\u00e9trica estreita e alta pureza \u00e9 o desafio mais dif\u00edcil na classifica\u00e7\u00e3o industrial do quartzo.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Princ\u00edpio de funcionamento do <a href=\"https:\/\/quartz-grinding.epic-powder.com\/pt\/machines\/vertical-air-classifier\/\">Classificador de ar<\/a><\/h2>\n\n\n\n<p>A classifica\u00e7\u00e3o \u00e9 um processo din\u00e2mico de sele\u00e7\u00e3o do tamanho das part\u00edculas:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1. Dispers\u00e3o e alimenta\u00e7\u00e3o<\/h3>\n\n\n\n<p>O p\u00f3 de quartzo \u00e9 disperso pelo fluxo de ar e entra uniformemente na c\u00e2mara de classifica\u00e7\u00e3o.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2. Equil\u00edbrio de for\u00e7as<\/h3>\n\n\n\n<p>Dentro da zona de classifica\u00e7\u00e3o, cada part\u00edcula \u00e9 controlada por duas for\u00e7as opostas:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>For\u00e7a centr\u00edfuga<\/strong><br>Gerado pelo rotor do classificador de alta velocidade; empurra as part\u00edculas para fora.<br>Proporcional \u00e0 massa da part\u00edcula e \u00e0 velocidade do rotor\u00b2.<\/li>\n\n\n\n<li><strong>Arrasto aerodin\u00e2mico (for\u00e7a do fluxo de ar)<\/strong><br>Gerado pelo ar em alta velocidade que passa pelas p\u00e1s do rotor; puxa as part\u00edculas para dentro, em dire\u00e7\u00e3o \u00e0 sa\u00edda de p\u00f3 fino.<br>Proporcional \u00e0 \u00e1rea da superf\u00edcie da part\u00edcula e \u00e0 velocidade do ar.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">3. Forma\u00e7\u00e3o de ponto de corte de precis\u00e3o<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Part\u00edculas finas (produto qualificado)<\/strong><br>\u2192 Por serem mais leves, recebem mais for\u00e7a de arrasto do que for\u00e7a centr\u00edfuga, passam pelas p\u00e1s do rotor e s\u00e3o coletadas como p\u00f3 fino.<\/li>\n\n\n\n<li><strong>Part\u00edculas grossas (produto n\u00e3o qualificado)<\/strong><br>\u2192 Mais pesado, mais afetado pela for\u00e7a centr\u00edfuga, lan\u00e7ado para fora e coletado ou devolvido para ser mo\u00eddo novamente como p\u00f3 grosso.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/quartz-grinding.epic-powder.com\/wp-content\/uploads\/2024\/01\/HTS.webp\" alt=\"Classificador de ar horizontal\" class=\"wp-image-1863\" srcset=\"https:\/\/quartz-grinding.epic-powder.com\/wp-content\/uploads\/2024\/01\/HTS.webp 800w, https:\/\/quartz-grinding.epic-powder.com\/wp-content\/uploads\/2024\/01\/HTS-300x225.webp 300w, https:\/\/quartz-grinding.epic-powder.com\/wp-content\/uploads\/2024\/01\/HTS-768x576.webp 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption class=\"wp-element-caption\"> Classificador de ar horizontal <\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Compara\u00e7\u00e3o de m\u00e9todos de classifica\u00e7\u00e3o comuns<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>M\u00e9todo de classifica\u00e7\u00e3o<\/th><th>Vantagens<\/th><th>Desvantagens<\/th><\/tr><\/thead><tbody><tr><td>Peneirar<\/td><td>Simples e de baixo custo.<\/td><td>N\u00e3o consegue processar part\u00edculas &lt;45 \u03bcm; entupimento severo.<\/td><\/tr><tr><td>separa\u00e7\u00e3o cicl\u00f4nica<\/td><td>Estrutura cont\u00ednua e simples<\/td><td>Adequado apenas para classifica\u00e7\u00e3o grosseira (10\u201350 \u03bcm)<\/td><\/tr><tr><td>Sedimenta\u00e7\u00e3o<\/td><td>Alta precis\u00e3o<\/td><td>Baixa efici\u00eancia; influenciada pela viscosidade do l\u00edquido.<\/td><\/tr><tr><td>Classificador de turbina de ar<\/td><td>Alta precis\u00e3o, automatizado; ponto de corte em n\u00edvel microm\u00e9trico<\/td><td>Custo de equipamento mais elevado; necessidade de ajuste de par\u00e2metros.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>O classificador din\u00e2mico de ar \u00e9 o \u00fanico m\u00e9todo pr\u00e1tico capaz de atingir D50 de 1 a 35 \u03bcm e Span &lt; 1,2 na produ\u00e7\u00e3o de quartzo ultrafino em escala industrial.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Como os classificadores din\u00e2micos de ar alcan\u00e7am classifica\u00e7\u00e3o de precis\u00e3o<\/h2>\n\n\n\n<p>Um classificador de ar din\u00e2mico consiste em um rotor de turbina de alta velocidade, um sistema de guia de fluxo, uma c\u00e2mara de classifica\u00e7\u00e3o e um sistema de coleta de p\u00f3. A classifica\u00e7\u00e3o \u00e9 controlada pelo equil\u00edbrio entre a for\u00e7a centr\u00edfuga e a resist\u00eancia aerodin\u00e2mica.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Processo de classifica\u00e7\u00e3o<\/strong><\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li>O p\u00f3 \u00e9 transportado para a zona de classifica\u00e7\u00e3o por fluxo de ar.<\/li>\n\n\n\n<li>O rotor gira a uma velocidade de 3000 a 12000 rpm, criando uma for\u00e7a centr\u00edfuga.<\/li>\n\n\n\n<li>Part\u00edculas grossas \u2192 devolvidas para moagem adicional<\/li>\n\n\n\n<li>Part\u00edculas finas \u2192 vencem a for\u00e7a centr\u00edfuga e s\u00e3o transportadas pela corrente de ar.<\/li>\n\n\n\n<li>Os par\u00e2metros de velocidade do rotor e fluxo de ar permitem cortes precisos e ajust\u00e1veis.<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">Par\u00e2metros de controle essenciais para uma classifica\u00e7\u00e3o precisa<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>1. Velocidade do rotor (par\u00e2metro principal)<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Maior velocidade \u2192 tamanho de corte menor<\/li>\n\n\n\n<li>Faixa t\u00edpica: 3000\u201312000 rpm<\/li>\n\n\n\n<li>Quartzo de grau eletr\u00f4nico: 8000\u201312000 rpm<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>2. Fluxo de ar e press\u00e3o negativa do sistema<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Determina a estabilidade da suspens\u00e3o de part\u00edculas<\/li>\n\n\n\n<li>Maior fluxo de ar \u2192 classifica\u00e7\u00e3o mais precisa<\/li>\n\n\n\n<li>Velocidade t\u00edpica do ar: 15\u201325 m\/s<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>3. Taxa de alimenta\u00e7\u00e3o<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Carga elevada \u2192 menor precis\u00e3o de classifica\u00e7\u00e3o<\/li>\n\n\n\n<li>Carga operacional ideal: 60\u201380% da capacidade nominal.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">4. Design Cer\u00e2mico Anticontamina\u00e7\u00e3o<\/h3>\n\n\n\n<p>Incluindo:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Revestimentos totalmente cer\u00e2micos<\/li>\n\n\n\n<li>Roda classificadora de zirc\u00f4nia<\/li>\n\n\n\n<li>Rolamentos de cer\u00e2mica<\/li>\n<\/ul>\n\n\n\n<p>\u2192 A contamina\u00e7\u00e3o por Fe\/Cr\/Al pode ser reduzida para &lt;10 ppm<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">5. Classifica\u00e7\u00e3o secund\u00e1ria ou em m\u00faltiplos est\u00e1gios<\/h3>\n\n\n\n<p>Utilizado para aplica\u00e7\u00f5es PSD ultraestreitas, tais como:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Preenchimentos de quartzo de alta pureza<\/li>\n\n\n\n<li>cer\u00e2mica de quartzo piezoel\u00e9trica<\/li>\n\n\n\n<li>materiais de encapsulamento fotovoltaico<\/li>\n\n\n\n<li>Materiais microeletr\u00f4nicos semicondutores<\/li>\n<\/ul>\n\n\n\n<p>Pode alcan\u00e7ar <strong>Intervalo 0,9\u20131,1<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Conclus\u00e3o<\/h2>\n\n\n\n<p>No processamento de p\u00f3 de quartzo ultrafino, a classifica\u00e7\u00e3o precisa n\u00e3o \u00e9 apenas essencial para melhorar a qualidade do produto, mas tamb\u00e9m a chave para entrar em \u00e1reas de ponta, como eletr\u00f4nica, \u00f3ptica e materiais de alta pureza.<\/p>\n\n\n\n<p>Ao adotar <a href=\"https:\/\/quartz-grinding.epic-powder.com\/pt\/contact\/\">P\u00f3 \u00e9pico<\/a>Com as solu\u00e7\u00f5es profissionais de engenharia de p\u00f3s ultrafinos da [nome da empresa] e o equipamento de linhas de produ\u00e7\u00e3o com classificadores de ar de alta efici\u00eancia, os fabricantes podem alcan\u00e7ar um controle est\u00e1vel do D50, um estreitamento preciso do D97, uma distribui\u00e7\u00e3o uniforme do tamanho das part\u00edculas e uma capacidade de produ\u00e7\u00e3o confi\u00e1vel.<\/p>\n\n\n\n<p>Escolher o p\u00f3 Epic Powder com tecnologia avan\u00e7ada de classifica\u00e7\u00e3o por ar significa escolher maior estabilidade, maior pureza e maior valor agregado, proporcionando uma base s\u00f3lida para aplica\u00e7\u00f5es de ponta em materiais eletr\u00f4nicos, novas energias e produtos qu\u00edmicos finos.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity is-style-default\"\/>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized is-style-rounded\"><img decoding=\"async\" width=\"602\" height=\"602\" src=\"https:\/\/quartz-grinding.epic-powder.com\/wp-content\/uploads\/2025\/11\/Jason-Wang.webp\" alt=\"Jason Wang\" class=\"wp-image-3541\" style=\"width:150px;height:150px\" srcset=\"https:\/\/quartz-grinding.epic-powder.com\/wp-content\/uploads\/2025\/11\/Jason-Wang.webp 602w, https:\/\/quartz-grinding.epic-powder.com\/wp-content\/uploads\/2025\/11\/Jason-Wang-300x300.webp 300w, https:\/\/quartz-grinding.epic-powder.com\/wp-content\/uploads\/2025\/11\/Jason-Wang-150x150.webp 150w, https:\/\/quartz-grinding.epic-powder.com\/wp-content\/uploads\/2025\/11\/Jason-Wang-12x12.webp 12w\" sizes=\"(max-width: 602px) 100vw, 602px\" \/><\/figure>\n\n\n\n<blockquote class=\"wp-block-quote has-text-align-center is-style-large is-layout-flow wp-block-quote-is-layout-flow\">\n<p>Obrigado pela leitura. Espero que meu artigo tenha ajudado. Deixe um coment\u00e1rio abaixo. Voc\u00ea tamb\u00e9m pode entrar em contato. <a href=\"https:\/\/quartz-grinding.epic-powder.com\/pt\/contact\/\">Zelda<\/a> Para quaisquer outras d\u00favidas, entre em contato com um representante de atendimento ao cliente online.<\/p>\n<cite>                                                                                                                                                                     \u2014 Publicado por <a href=\"https:\/\/www.linkedin.com\/company\/76603359\/admin\/dashboard\/\">Jason Wang<\/a><\/cite><\/blockquote>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity is-style-default\"\/>\n\n\n\n<div class=\"wp-block-contact-form-7-contact-form-selector\">\n<div class=\"wpcf7 no-js\" id=\"wpcf7-f16-o1\" lang=\"zh-CN\" dir=\"ltr\" data-wpcf7-id=\"16\">\n<div class=\"screen-reader-response\"><p role=\"status\" aria-live=\"polite\" aria-atomic=\"true\"><\/p> <ul><\/ul><\/div>\n<form action=\"\/pt\/wp-json\/wp\/v2\/posts\/3543#wpcf7-f16-o1\" method=\"post\" class=\"wpcf7-form init\" aria-label=\"\u7559\u8a00\u8868\u5355\" novalidate=\"novalidate\" data-status=\"init\" data-trp-original-action=\"\/pt\/wp-json\/wp\/v2\/posts\/3543#wpcf7-f16-o1\">\n<div style=\"display: none;\">\n<input type=\"hidden\" name=\"_wpcf7\" value=\"16\" \/>\n<input type=\"hidden\" name=\"_wpcf7_version\" value=\"6.0.6\" \/>\n<input type=\"hidden\" name=\"_wpcf7_locale\" value=\"zh_CN\" \/>\n<input type=\"hidden\" name=\"_wpcf7_unit_tag\" value=\"wpcf7-f16-o1\" \/>\n<input type=\"hidden\" name=\"_wpcf7_container_post\" value=\"0\" \/>\n<input type=\"hidden\" name=\"_wpcf7_posted_data_hash\" value=\"\" \/>\n<\/div>\n<div class=\"keen-form\">\n\t<div class=\"one-half\">\n\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"your-name\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text wpcf7-validates-as-required\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"Seu nome*\" value=\"\" type=\"text\" name=\"your-name\" \/><\/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-email\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-email wpcf7-validates-as-required wpcf7-text wpcf7-validates-as-email\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"Seu email*\" value=\"\" type=\"email\" name=\"your-email\" \/><\/span>\n\t\t<\/p>\n\t<\/div>\n\t<div class=\"one-half\">\n\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"pnone\"><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=\"Seu Pnone ou Whatsapp*\" value=\"\" type=\"tel\" name=\"pnone\" \/><\/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=\"Sua empresa\" 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=\"Sua mensagem\" name=\"your-message\"><\/textarea><\/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=\"Enviar\" \/>\n\t\t<\/p>\n\t<\/div>\n<\/div>\n<style>\n.keen-form div{margin-bottom:5px;}\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=\"pt\"\/><\/form>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>O p\u00f3 de quartzo ultrafino (D50 2\u201310 \u03bcm, D90 &lt; 15 \u03bcm) \u00e9 amplamente utilizado em encapsulamento eletr\u00f4nico, fundi\u00e7\u00e3o de precis\u00e3o, vidro \u00f3ptico, revestimentos, cer\u00e2mica de quartzo, materiais semicondutores e outras ind\u00fastrias de ponta. Nessas aplica\u00e7\u00f5es, a distribui\u00e7\u00e3o do tamanho das part\u00edculas, a morfologia das part\u00edculas, a pureza e a estabilidade determinam diretamente o desempenho do material final. \u00c0 medida que a demanda por p\u00f3 de quartzo de alta pureza [\u2026]<\/p>","protected":false},"author":1,"featured_media":3171,"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":"","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":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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