{"id":7112,"date":"2026-08-21T14:16:08","date_gmt":"2026-08-21T22:16:08","guid":{"rendered":"https:\/\/changyupump.com\/?p=7112"},"modified":"2026-08-21T14:16:09","modified_gmt":"2026-08-21T22:16:09","slug":"alumina-slurry-pump-red-mud-bauxite-transfer-in-bayer-process","status":"publish","type":"post","link":"https:\/\/changyupump.com\/vi\/blog\/alumina-slurry-pump-red-mud-bauxite-transfer-in-bayer-process\/","title":{"rendered":"B\u01a1m B\u00f9n Alumina: V\u1eadn Chuy\u1ec3n B\u00f9n \u0110\u1ecf &amp; Bauxite trong Quy Tr\u00ecnh Bayer"},"content":{"rendered":"<h2 class=\"wp-block-heading\">Tr\u1ea3 l\u1eddi nhanh:<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>B\u01a1m b\u00f9n alumina<\/strong> l\u00e0 m\u1ed9t lo\u1ea1i b\u01a1m c\u00f4ng nghi\u1ec7p h\u1ea1ng n\u1eb7ng \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 v\u1eadn chuy\u1ec3n b\u00f9n \u0111\u1ecf c\u00f3 t\u00ednh ki\u1ec1m cao, b\u00f9n bauxite v\u00e0 dung d\u1ecbch natri aluminat trong quy tr\u00ecnh Bayer. Vi\u1ec7c l\u1ef1a ch\u1ecdn \u0111\u00fang lo\u1ea1i b\u01a1m \u2014 d\u00f9 l\u00e0 b\u01a1m b\u00f9n ly t\u00e2m h\u1ee3p kim crom cao, b\u01a1m h\u00f3a ch\u1ea5t l\u00f3t UHMW-PE hay b\u01a1m tr\u1ee5c v\u00edt khoang ti\u1ebfn \u2014 \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn tu\u1ed5i th\u1ecd, chu k\u1ef3 b\u1ea3o tr\u00ec v\u00e0 t\u1ed5ng chi ph\u00ed s\u1edf h\u1eefu c\u1ee7a h\u1ec7 th\u1ed1ng x\u1eed l\u00fd ch\u1ea5t l\u1ecfng trong nh\u00e0 m\u00e1y l\u1ecdc alumina c\u1ee7a b\u1ea1n.<\/p>\n\n\n<style>.kb-image7112_23989f-4d .kb-image-has-overlay:after{opacity:0.3;}<\/style>\n<figure class=\"wp-block-kadence-image kb-image7112_23989f-4d size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"750\" src=\"https:\/\/changyupump.com\/wp-content\/uploads\/2026\/08\/Alumina-Slurry-Pump-Red-Mud-Bauxite-Transfer-in-Bayer-Process.webp\" alt=\"B\u01a1m B\u00f9n Alumina V\u1eadn Chuy\u1ec3n B\u00f9n \u0110\u1ecf &amp; Bauxite trong Quy Tr\u00ecnh Bayer\" class=\"kb-img wp-image-7119\" srcset=\"https:\/\/changyupump.com\/wp-content\/uploads\/2026\/08\/Alumina-Slurry-Pump-Red-Mud-Bauxite-Transfer-in-Bayer-Process.webp 1000w, https:\/\/changyupump.com\/wp-content\/uploads\/2026\/08\/Alumina-Slurry-Pump-Red-Mud-Bauxite-Transfer-in-Bayer-Process-300x225.webp 300w, https:\/\/changyupump.com\/wp-content\/uploads\/2026\/08\/Alumina-Slurry-Pump-Red-Mud-Bauxite-Transfer-in-Bayer-Process-150x113.webp 150w, https:\/\/changyupump.com\/wp-content\/uploads\/2026\/08\/Alumina-Slurry-Pump-Red-Mud-Bauxite-Transfer-in-Bayer-Process-768x576.webp 768w, https:\/\/changyupump.com\/wp-content\/uploads\/2026\/08\/Alumina-Slurry-Pump-Red-Mud-Bauxite-Transfer-in-Bayer-Process-16x12.webp 16w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">B\u01a1m b\u00f9n alumina l\u00e0 g\u00ec v\u00e0 t\u1ea1i sao n\u00f3 quan tr\u1ecdng trong quy tr\u00ecnh Bayer?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">B\u01a1m b\u00f9n alumina l\u00e0 m\u1ed9t lo\u1ea1i b\u01a1m ly t\u00e2m ho\u1eb7c b\u01a1m th\u1ec3 t\u00edch d\u01b0\u01a1ng \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho c\u00e1c lo\u1ea1i b\u00f9n \u0103n m\u00f2n v\u00e0 m\u00e0i m\u00f2n ph\u00e1t sinh trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t alumina th\u00f4ng qua&nbsp;<a href=\"https:\/\/en.wikipedia.org\/wiki\/Bayer_process\" target=\"_blank\" rel=\"noopener\">quy tr\u00ecnh Bayer<\/a>. Trong quy tr\u00ecnh n\u00e0y,&nbsp;<a href=\"https:\/\/en.wikipedia.org\/wiki\/Bauxite\" target=\"_blank\" rel=\"noopener\">qu\u1eb7ng bauxite<\/a>&nbsp;\u0111\u01b0\u1ee3c h\u00f2a t\u00e1ch trong dung d\u1ecbch natri hydroxit (NaOH) \u0111\u1eadm \u0111\u1eb7c \u1edf nhi\u1ec7t \u0111\u1ed9 cao (th\u01b0\u1eddng 140\u2013245\u00b0C t\u00f9y thu\u1ed9c v\u00e0o c\u1ea5u h\u00ecnh quy tr\u00ecnh) v\u00e0 \u00e1p su\u1ea5t \u0111\u1ec3 chi\u1ebft xu\u1ea5t alumina (Al\u2082O\u2083) d\u01b0\u1edbi d\u1ea1ng natri aluminat. C\u1eb7n kh\u00f4ng h\u00f2a tan \u2014&nbsp;<a href=\"https:\/\/en.wikipedia.org\/wiki\/Red_mud\" target=\"_blank\" rel=\"noopener\">b\u00f9n \u0111\u1ecf<\/a>&nbsp;\u2014 l\u00e0 m\u1ed9t lo\u1ea1i b\u00f9n c\u00f3 t\u00ednh ki\u1ec1m cao (pH 10\u201312,5) ch\u1ee9a oxit s\u1eaft m\u1ecbn, silica, titania v\u00e0 ki\u1ec1m d\u01b0.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u01a1m b\u00f9n alumina ph\u1ea3i \u0111\u1ed3ng th\u1eddi ch\u1ed1ng l\u1ea1i:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>M\u00e0i m\u00f2n nghi\u00eam tr\u1ecdng<\/strong>&nbsp;t\u1eeb c\u00e1c h\u1ea1t bauxite v\u00e0 ch\u1ea5t r\u1eafn trong b\u00f9n \u0111\u1ecf (th\u01b0\u1eddng 20\u201350% tr\u1ecdng l\u01b0\u1ee3ng ch\u1ea5t r\u1eafn)<\/li>\n\n\n\n<li><strong>\u0102n m\u00f2n ki\u1ec1m m\u1ea1nh<\/strong>&nbsp;t\u1eeb NaOH \u1edf nhi\u1ec7t \u0111\u1ed9 cao<\/li>\n\n\n\n<li><strong>V\u1eadn h\u00e0nh \u1edf nhi\u1ec7t \u0111\u1ed9 cao<\/strong>&nbsp;(l\u00ean \u0111\u1ebfn 100\u00b0C+ trong m\u1ea1ch r\u1eeda b\u00f9n \u0111\u1ecf, l\u00ean \u0111\u1ebfn 245\u00b0C trong qu\u00e1 tr\u00ecnh h\u00f2a t\u00e1ch)<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">B\u01a1m b\u00f9n ly t\u00e2m d\u00f2ng PGY c\u1ee7a ch\u00fang t\u00f4i \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho \u1ee9ng d\u1ee5ng n\u00e0y, v\u1edbi c\u00e1c b\u1ed9 ph\u1eadn ti\u1ebfp x\u00fac ch\u1ea5t l\u1ecfng b\u1eb1ng h\u1ee3p kim crom cao (BTMCr27, BTMCr28, BTMCr33) \u0111\u01b0\u1ee3c l\u1ef1a ch\u1ecdn d\u1ef1a tr\u00ean s\u1ef1 c\u00e2n b\u1eb1ng c\u1ee5 th\u1ec3 gi\u1eefa m\u00e0i m\u00f2n v\u00e0 \u0103n m\u00f2n trong t\u1eebng giai \u0111o\u1ea1n c\u1ee7a quy tr\u00ecnh.&nbsp;<a href=\"https:\/\/changyupump.com\/vi\/san-pham\/pgy-series-horizontal-slurry-pumps\/\">Xem Th\u00f4ng S\u1ed1 K\u1ef9 Thu\u1eadt D\u00f2ng PGY \u2192<\/a><\/p>\n\n\n<style>.kb-image7112_2de61a-3c.kb-image-is-ratio-size, .kb-image7112_2de61a-3c .kb-image-is-ratio-size{max-width:926px;width:100%;}.wp-block-kadence-column > .kt-inside-inner-col > .kb-image7112_2de61a-3c.kb-image-is-ratio-size, .wp-block-kadence-column > .kt-inside-inner-col > .kb-image7112_2de61a-3c .kb-image-is-ratio-size{align-self:unset;}.kb-image7112_2de61a-3c{max-width:926px;}.image-is-svg.kb-image7112_2de61a-3c{-webkit-flex:0 1 100%;flex:0 1 100%;}.image-is-svg.kb-image7112_2de61a-3c img{width:100%;}.kb-image7112_2de61a-3c .kb-image-has-overlay:after{opacity:0.3;}<\/style>\n<figure class=\"wp-block-kadence-image kb-image7112_2de61a-3c size-large\"><img decoding=\"async\" src=\"https:\/\/changyupump.com\/wp-content\/uploads\/2026\/05\/2-1024x768.webp\" alt=\"PGY Series Alumina Slurry Pump\" class=\"kb-img\"\/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">B\u01a1m b\u00f9n alumina ho\u1ea1t \u0111\u1ed9ng \u1edf \u0111\u00e2u trong l\u01b0u tr\u00ecnh quy tr\u00ecnh Bayer?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Quy tr\u00ecnh Bayer bao g\u1ed3m nhi\u1ec1u giai \u0111o\u1ea1n b\u01a1m, m\u1ed7i giai \u0111o\u1ea1n c\u00f3 \u0111\u1eb7c t\u00ednh b\u00f9n ri\u00eang bi\u1ec7t:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Giai \u0111o\u1ea1n quy tr\u00ecnh<\/th><th>Trung b\u00ecnh<\/th><th>pH<\/th><th>Nhi\u1ec7t \u0111\u1ed9<\/th><th>H\u00e0m l\u01b0\u1ee3ng ch\u1ea5t r\u1eafn<\/th><th>Th\u00e1ch th\u1ee9c ch\u00ednh<\/th><\/tr><\/thead><tbody><tr><td>Nghi\u1ec1n &amp; c\u1ea5p li\u1ec7u bauxite<\/td><td>B\u00f9n bauxite + dung d\u1ecbch ki\u1ec1m<\/td><td>12\u201313<\/td><td>80\u2013100\u00b0C<\/td><td>30\u201350%<\/td><td>M\u00e0i m\u00f2n cao t\u1eeb bauxite t\u01b0\u01a1i<\/td><\/tr><tr><td>X\u1ea3 h\u00f2a t\u00e1ch<\/td><td>Dung d\u1ecbch \u0111\u00e3 qua s\u1eed d\u1ee5ng + b\u00f9n \u0111\u1ecf<\/td><td>10\u201312<\/td><td>140\u2013245\u00b0C<\/td><td>20\u201340%<\/td><td>Nhi\u1ec7t \u0111\u1ed9 cao + ki\u1ec1m<\/td><\/tr><tr><td>R\u1eeda b\u00f9n \u0111\u1ecf (d\u00f2ng ng\u01b0\u1ee3c chi\u1ec1u)<\/td><td>B\u00f9n \u0111\u1ecf pha lo\u00e3ng<\/td><td>10\u201311<\/td><td>60\u201390\u00b0C<\/td><td>15\u201330 l\u1ea7n<\/td><td>K\u1ebft h\u1ee3p m\u00e0i m\u00f2n + \u0103n m\u00f2n<\/td><\/tr><tr><td>X\u1eed l\u00fd \/ th\u1ea3i b\u00f9n \u0111\u1ecf<\/td><td>B\u00f9n \u0111\u1ecf<\/td><td>10\u201311<\/td><td>40\u201360\u00b0C<\/td><td>30\u201350%<\/td><td>V\u1eadn chuy\u1ec3n qua \u0111\u01b0\u1eddng \u1ed1ng \u0111\u01b0\u1eddng d\u00e0i<\/td><\/tr><tr><td>C\u1ea5p li\u1ec7u k\u1ebft tinh m\u1ea7m<\/td><td>Dung d\u1ecbch natri aluminat<\/td><td>12\u201313<\/td><td>55\u201370\u00b0C<\/td><td>&lt;5%<\/td><td>H\u00e0m l\u01b0\u1ee3ng ch\u1ea5t r\u1eafn th\u1ea5p nh\u01b0ng ki\u1ec1m cao<\/td><\/tr><tr><td>Ph\u00e2n lo\u1ea1i hydrat<\/td><td>B\u00f9n nh\u00f4m trihydrat<\/td><td>10\u201311<\/td><td>50\u201360\u00b0C<\/td><td>10\u201330%<\/td><td>Ch\u1ea5t r\u1eafn tinh th\u1ec3 m\u00e0i m\u00f2n<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u1ee8ng d\u1ee5ng quan tr\u1ecdng nh\u1ea5t l\u00e0 v\u1eadn chuy\u1ec3n b\u00f9n \u0111\u1ecf \u2014 c\u1ea3 trong m\u1ea1ch r\u1eeda v\u00e0 \u0111\u1ebfn khu v\u1ef1c th\u1ea3i b\u1ecf. Theo&nbsp;<a href=\"https:\/\/international-aluminium.org\/\" target=\"_blank\" rel=\"noopener\">Vi\u1ec7n Nh\u00f4m Qu\u1ed1c t\u1ebf<\/a>, kho\u1ea3ng 1,5\u20132,0 t\u1ea5n b\u00f9n \u0111\u1ecf \u0111\u01b0\u1ee3c t\u1ea1o ra cho m\u1ed7i t\u1ea5n alumina s\u1ea3n xu\u1ea5t, khi\u1ebfn cho hi\u1ec7u su\u1ea5t b\u01a1m \u0111\u00e1ng tin c\u1eady tr\u1edf n\u00ean thi\u1ebft y\u1ebfu cho ho\u1ea1t \u0111\u1ed9ng li\u00ean t\u1ee5c c\u1ee7a nh\u00e0 m\u00e1y l\u1ecdc. B\u01a1m b\u00f9n c\u00f4ng nghi\u1ec7p d\u00f2ng UHB c\u1ee7a ch\u00fang t\u00f4i, v\u1edbi l\u1edbp l\u00f3t UHMW-PE d\u00e0y 8\u201320 mm v\u00e0 c\u00e1nh b\u01a1m b\u00e1n h\u1edf, cung c\u1ea5p kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u00e0 m\u00e0i m\u00f2n k\u1ebft h\u1ee3p cho d\u1ecbch v\u1ee5 r\u1eeda b\u00f9n \u0111\u1ecf.&nbsp;<a href=\"https:\/\/changyupump.com\/vi\/san-pham\/uhb-series-industrial-slurry-pumps\/\">Xem Th\u00f4ng S\u1ed1 K\u1ef9 Thu\u1eadt D\u00f2ng UHB \u2192<\/a><\/p>\n\n\n<style>.kb-image7112_442f67-d2 .kb-image-has-overlay:after{opacity:0.3;}<\/style>\n<figure class=\"wp-block-kadence-image kb-image7112_442f67-d2 size-large\"><img decoding=\"async\" src=\"https:\/\/changyupump.com\/wp-content\/uploads\/2025\/11\/industrial-slurry-pumps-2-1024x768.webp\" alt=\"UHB Series Alumina Slurry Pump\" class=\"kb-img\"\/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 ch\u1ecdn \u0111\u00fang b\u01a1m b\u00f9n alumina cho v\u1eadn chuy\u1ec3n b\u00f9n \u0111\u1ecf?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c l\u1ef1a ch\u1ecdn b\u01a1m cho b\u00f9n alumina ph\u1ee5 thu\u1ed9c v\u00e0o ba y\u1ebfu t\u1ed1:&nbsp;<strong>\u0111\u1ed9 m\u00e0i m\u00f2n c\u1ee7a b\u00f9n, t\u00ednh \u0103n m\u00f2n h\u00f3a h\u1ecdc v\u00e0 nhi\u1ec7t \u0111\u1ed9 v\u1eadn h\u00e0nh.<\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Ma tr\u1eadn l\u1ef1a ch\u1ecdn<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u0110i\u1ec1u Ki\u1ec7n<\/th><th>D\u00f2ng b\u01a1m khuy\u1ebfn ngh\u1ecb<\/th><th>Ch\u1ea5t li\u1ec7u<\/th><th>T\u00ednh n\u0103ng ch\u00ednh<\/th><\/tr><\/thead><tbody><tr><td>V\u1eadn chuy\u1ec3n b\u00f9n \u0111\u1ecf c\u1ed9t \u00e1p cao (c\u1ed9t \u00e1p &gt; 60 m)<\/td><td>B\u01a1m b\u00f9n ngang d\u00f2ng PGY<\/td><td>BTMCr27 \/ BTMCr28 \/ BTMCr33 high-chrome alloy<\/td><td>Double casing, replaceable wear parts, head up to 101.6 m<\/td><\/tr><tr><td>Corrosive red mud washing (pH &gt; 10, temp up to 90\u00b0C)<\/td><td>B\u01a1m b\u00f9n c\u00f4ng nghi\u1ec7p d\u00f2ng UHB<\/td><td>UHMW-PE lined (8\u201320 mm)<\/td><td>Semi-open impeller, K-type dynamic seal, flow up to 2,600 m\u00b3\/h<\/td><\/tr><tr><td>Dilute caustic liquor with fine solids<\/td><td>CYB-ZKJ Series Corrosion Resistant Slurry Pump<\/td><td>FEP\/PTFE lined<\/td><td>Temp range -20\u00b0C to 120\u00b0C (standard), near-zero leakage<\/td><\/tr><tr><td>High-viscosity red mud or thickener underflow<\/td><td>G-Type Screw Pump (Progressive Cavity)<\/td><td>NBR\/EPDM\/FKM stator<\/td><td>Handles high-viscosity non-Newtonian fluids, self-priming, metered flow<\/td><\/tr><tr><td>Moderate abrasion, high-temperature caustic<\/td><td>B\u01a1m b\u00f9n b\u1eb1ng th\u00e9p kh\u00f4ng g\u1ec9 d\u00f2ng HB<\/td><td>316L \/ 2205 duplex stainless<\/td><td>ISO 2858, temperature up to 120\u00b0C<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Key selection rules from our engineering team:<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>For red mud with coarse particles (&gt; 1 mm) and high head:<\/strong>&nbsp;Choose PGY Series with BTMCr27 or BTMCr28 high-chrome alloy. BTMCr27 (\u226556 HRC) provides superior abrasion resistance; BTMCr33 (\u226535 HRC) offers an improved balance of caustic corrosion resistance and wear. The double-casing design allows wear part replacement without dismantling piping.&nbsp;<a href=\"https:\/\/changyupump.com\/vi\/san-pham\/pgy-series-horizontal-slurry-pumps\/\">Xem d\u00f2ng PGY \u2192<\/a><\/li>\n\n\n\n<li><strong>For fine-particle red mud in washing circuits:<\/strong>&nbsp;Choose UHB Series with UHMW-PE lining. The semi-open impeller prevents clogging, and the K-type dynamic seal with cooling water jacket ensures reliable sealing at high caustic concentrations.&nbsp;<a href=\"https:\/\/changyupump.com\/vi\/san-pham\/uhb-series-industrial-slurry-pumps\/\">Xem d\u00f2ng UHB \u2192<\/a><\/li>\n\n\n\n<li><strong>For viscous red mud thickener underflow or corrosive slurries:<\/strong>&nbsp;Choose G-Type Screw Pump (progressive cavity). The positive-displacement design handles high-viscosity, non-Newtonian fluids with minimal pulsation, and is documented for handling alkaline red mud from the Bayer process.&nbsp;<a href=\"https:\/\/changyupump.com\/vi\/?p=5444\/\">View Screw Pump Specifications \u2192<\/a><\/li>\n<\/ol>\n\n\n<style>.kb-image7112_6184b0-4f .kb-image-has-overlay:after{opacity:0.3;}<\/style>\n<figure class=\"wp-block-kadence-image kb-image7112_6184b0-4f size-large\"><img decoding=\"async\" src=\"https:\/\/changyupump.com\/wp-content\/uploads\/2026\/05\/Screw-pump-4-1024x768.webp\" alt=\"Screw Alumina Slurry Pump\" class=\"kb-img\"\/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">What Are the Key Challenges When Pumping Red Mud and Bauxite Slurry?<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Challenge 1: Combined Abrasive and Caustic Attack<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Red mud contains fine iron oxide and silica particles (typically 10\u2013100 \u03bcm) suspended in NaOH solution. Standard metal pumps suffer from both abrasive wear and caustic corrosion simultaneously. Our PGY Series addresses this with multiple high-chrome alloy options: BTMCr27 (\u226556 HRC) for abrasion-dominated stages, and BTMCr33 (\u226535 HRC, 33% Cr) for stages requiring enhanced caustic corrosion resistance.&nbsp;<a href=\"https:\/\/changyupump.com\/vi\/san-pham\/pgy-series-horizontal-slurry-pumps\/\">Xem d\u00f2ng PGY \u2192<\/a><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Challenge 2: High Temperature and Thermal Cycling<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Bayer process liquor temperatures range from 60\u00b0C (washing) to 245\u00b0C (digestion). Thermal cycling during start-up and shutdown can cause lining delamination in lined pumps. Our CYB-ZKJ Series uses imported FEP\/PTFE lining with patented plastic-lined and sintered forming technology, designed to resist thermal deformation, cracking, and peeling.&nbsp;<a href=\"https:\/\/changyupump.com\/vi\/san-pham\/bom-bun-ngang-chong-an-mon\/\">Xem D\u00f2ng CYB-ZKJ \u2192<\/a><\/p>\n\n\n<style>.kb-image7112_ed4db9-d1 .kb-image-has-overlay:after{opacity:0.3;}<\/style>\n<figure class=\"wp-block-kadence-image kb-image7112_ed4db9-d1 size-large\"><img decoding=\"async\" src=\"https:\/\/changyupump.com\/wp-content\/uploads\/2025\/10\/Horizontal-Slurry-Pumps-2-1024x768.webp\" alt=\"CYB-ZKJ Series Alumina Slurry Pump\" class=\"kb-img\"\/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Challenge 3: Pipeline Blockage and Settling<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Red mud with high solids content (40\u201350%) settles rapidly when flow velocity drops below the critical settling velocity (typically 2.5\u20134 m\/s). Our PGY Series delivers heads up to 101.6 m, sufficient to maintain the required pipeline velocity over long distances. The adjustable impeller clearance allows performance recovery as wear occurs.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Challenge 4: Seal Failure and Leakage<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Caustic liquor leakage is both a safety hazard and an environmental concern. The UHB Series features a K-type dynamic seal with cooling water jacket that generates centrifugal force during operation to block particles from entering the seal chamber.  <a href=\"https:\/\/changyupump.com\/vi\/san-pham\/uhb-series-industrial-slurry-pumps\/\">Xem d\u00f2ng UHB \u2192<\/a><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Which Changyu Pump Models Are Recommended for Alumina Slurry Applications?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Based on our field experience supplying pumps to alumina refineries, our engineering team recommends the following configurations:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Duty<\/th><th>Recommended Model<\/th><th>Ph\u1ea1m vi l\u01b0u l\u01b0\u1ee3ng<\/th><th>D\u1ea3i \u0111\u1ea7u<\/th><th>Ch\u1ea5t li\u1ec7u<\/th><\/tr><\/thead><tbody><tr><td>Red mud tailings disposal<\/td><td>D\u00f2ng PGY<\/td><td>117\u2013976 m\u00b3\/h<\/td><td>21,1\u2013101,6 m<\/td><td>BTMCr27\/BTMCr28\/BTMCr33 high-chrome alloy<\/td><\/tr><tr><td>Red mud washing circuit<\/td><td>D\u00f2ng UHB<\/td><td>3\u20132.600 m\u00b3\/gi\u1edd<\/td><td>5\u2013100 m<\/td><td>UHMW-PE lined (8\u201320 mm)<\/td><\/tr><tr><td>Bauxite slurry feed<\/td><td>D\u00f2ng CYB-ZKJ<\/td><td>3\u20132.600 m\u00b3\/gi\u1edd<\/td><td>5\u2013100 m<\/td><td>FEP\/PTFE lined<\/td><\/tr><tr><td>Thickener underflow (high viscosity)<\/td><td>B\u01a1m Tr\u1ee5c v\u00edt Lo\u1ea1i G<\/td><td>0\u2013200 m\u00b3\/h<\/td><td>60\u2013120 m<\/td><td>NBR\/EPDM\/FKM stator<\/td><\/tr><tr><td>Caustic liquor (low solids)<\/td><td>D\u00f2ng HB<\/td><td>10\u201360 m\u00b3\/gi\u1edd<\/td><td>20\u2013120 m<\/td><td>316L \/ 2205 duplex SS<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">All pump series are available with customized seal configurations, material upgrades, and VFD-ready drive systems to match your specific process conditions.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Frequently Asked Questions About Alumina Slurry Pumps<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Q: What pump material is recommended for red mud with high caustic content?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">For high-caustic red mud (pH 10\u201312.5), BTMCr33 high-chrome alloy (33% Cr, \u226535 HRC) provides a balanced combination of corrosion and abrasion resistance. For stages with lower caustic concentration but higher abrasion, BTMCr27 (\u226556 HRC) is preferred. UHMW-PE lining (UHB Series) is also effective for washing circuits where temperatures remain below 90\u00b0C.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Q: How often should a red mud slurry pump be serviced?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Service intervals depend on operating conditions. In typical alumina refinery red mud service, wear parts in PGY Series pumps (impeller, throat bush, liner) are inspected every 3,000\u20134,000 operating hours. The double-casing design allows replacement without disturbing piping, reducing downtime.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Q: Can a UHB lined pump handle Bayer liquor at 100\u00b0C?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The standard UHB Series with UHMW-PE lining is rated for -20\u00b0C to 90\u00b0C. For applications above 90\u00b0C, modified material formulations can extend the range up to 120\u00b0C. For digestion-stage temperatures (140\u2013245\u00b0C), our PGY Series with high-chrome alloy is the recommended choice.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Q: What causes premature seal failure in caustic slurry pumps?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The primary cause is red mud particles entering the seal chamber. The UHB Series K-type dynamic seal addresses this by creating centrifugal force that blocks particles during operation. For the CYB-ZKJ Series, dual-end mechanical seals with API 682 flushing protocols are available.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Why Choose Changyu Pump for Your Alumina Slurry Pump Solution?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Verified field performance:<\/strong> Our PGY and UHB series pumps have been deployed in alumina refineries across Asia and Africa, handling red mud with specific gravity up to 1.8 and temperatures exceeding 100\u00b0C.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Material engineering expertise:<\/strong> We manufacture wetted parts in high-chrome alloys (BTMCr27, BTMCr28, BTMCr33), UHMW-PE, FEP\/PFA, and stainless steel (304, 316L, 2205, 2507) \u2014 all from a single source, eliminating multi-vendor compatibility risk.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Quality assurance:<\/strong> ISO 9001 certified, CE compliant. Every pump undergoes hydraulic performance testing, material verification (spectral analysis), and final assembly audit before shipment.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Factory-direct supply:<\/strong> With a 20,000 m\u00b2 modern production facility, over 20 years of OEM\/ODM engineering experience, and 50+ patents, we provide competitive pricing and reliable lead times.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Li\u00ean h\u1ec7 \u0111\u1ed9i ng\u0169 k\u1ef9 thu\u1eadt c\u1ee7a ch\u00fang t\u00f4i ngay h\u00f4m nay<\/strong> for a professional technical assessment tailored to your alumina refinery&#8217;s pumping requirements.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud83d\udce7 <strong>Email:<\/strong> <a href=\"mailto:jade@changyupump.com\">jade@changyupump.com<\/a><br>\ud83d\udcde <strong>\u0110i\u1ec7n tho\u1ea1i \/ WhatsApp:<\/strong> <a href=\"https:\/\/wa.me\/8613651913727\" target=\"_blank\" rel=\"noopener\">+86-13651913727<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Let us help you select the right alumina slurry pump \u2014 and reduce your total cost of ownership from the first year of operation.<\/strong><\/p>\n\n\n<div class=\"wp-block-kadence-advanced-form wp-block-kadence-advanced-form1246-cpt-id kb-adv-form-label-style-normal kb-adv-form-input-size-standard kb-form-basic-style\"><form id=\"kb-adv-form-1246-cpt-id\" class=\"kb-advanced-form\" method=\"post\" action=\"\">\n<style>.kb-row-layout-id16_395842-3c > .kt-row-column-wrap{align-content:start;}:where(.kb-row-layout-id16_395842-3c > .kt-row-column-wrap) > .wp-block-kadence-column{justify-content:start;}.kb-row-layout-id16_395842-3c > .kt-row-column-wrap{column-gap:var(--global-kb-gap-md, 2rem);row-gap:var(--global-kb-gap-md, 2rem);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;grid-template-columns:repeat(2, minmax(0, 1fr));}.kb-row-layout-id16_395842-3c > 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.aligncenter{width:100%;}.kadence-column16_3a38e5-5d > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column16_3a38e5-5d{position:relative;}@media all and (max-width: 1024px){.kadence-column16_3a38e5-5d > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column16_3a38e5-5d > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column16_3a38e5-5d\"><div class=\"kt-inside-inner-col\"><div class=\"kb-adv-form-field kb-adv-form-text-type-input kb-adv-form-infield-type-input kb-field124600b147-f8 wp-block-kadence-advanced-form-text\"><label class=\"kb-adv-form-label\" for=\"field124600b147-f8\">T\u00ean<\/label><input name=\"field00b147-f8\" id=\"field124600b147-f8\" data-label=\"Name\" type=\"text\" placeholder=\"\" value=\"\" data-type=\"text\" class=\"kb-field kb-text-field\" data-required=\"no\" 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class=\"kt-inside-inner-col\"><div class=\"kb-adv-form-field kb-adv-form-text-type-input kb-adv-form-infield-type-input kb-field124648086d-59 wp-block-kadence-advanced-form-email\"><label class=\"kb-adv-form-label\" for=\"field124648086d-59\">Th\u01b0 \u0111i\u1ec7n t\u1eed<span class=\"kb-adv-form-required\">*<\/span><\/label><input name=\"field48086d-59\" id=\"field124648086d-59\" data-label=\"Email\" type=\"email\" placeholder=\"\" value=\"\" data-type=\"email\" class=\"kb-field kb-email-field\" data-required=\"yes\" required aria-required=\"true\"\/><\/div><\/div><\/div>\n\n<\/div><\/div>\n\n<div class=\"kb-adv-form-field kb-adv-form-text-type-input kb-adv-form-infield-type-input kb-field124697066f-d3 wp-block-kadence-advanced-form-text\"><label class=\"kb-adv-form-label\" for=\"field124697066f-d3\">WhatsApp\/\u0110i\u1ec7n tho\u1ea1i<\/label><input name=\"field97066f-d3\" id=\"field124697066f-d3\" data-label=\"Whatsapp\/Phone\" type=\"text\" placeholder=\"\" value=\"\" data-type=\"text\" class=\"kb-field kb-text-field\" data-required=\"no\" \/><\/div>\n\n<div class=\"kb-adv-form-field kb-adv-form-text-type-input kb-adv-form-infield-type-input kb-field1246ae3276-7e wp-block-kadence-advanced-form-textarea\"><label class=\"kb-adv-form-label\" for=\"field1246ae3276-7e\">Th\u00f4ng \u0111i\u1ec7p<span class=\"kb-adv-form-required\">*<\/span><\/label><textarea name=\"fieldae3276-7e\" id=\"field1246ae3276-7e\" rows=\"4\"  data-label=\"Message\" placeholder=\"\" data-type=\"textarea\" class=\"kb-field kb-textarea-field\" data-required=\"yes\" required aria-required=\"true\"><\/textarea><\/div>\n\n<style>ul.menu .kb-submit-field .kb-btnd4ade1-86.kb-button{width:initial;}.kb-submit-field .kb-btnd4ade1-86.kb-button{background:var(--global-palette1, #3182CE);}.kb-submit-field .kb-btnd4ade1-86.kb-button:hover, .kb-submit-field .kb-btnd4ade1-86.kb-button:focus{background:var(--global-palette2, #2B6CB0);}.kb-submit-field.kb-fieldd4ade1-86{justify-content:flex-start;}<\/style><div class=\"kb-adv-form-field kb-submit-field kb-fieldd4ade1-86 wp-block-kadence-advanced-form-submit\"><button class=\"kb-button kt-button button kb-adv-form-submit-button kb-btnd4ade1-86 kt-btn-size-standard kt-btn-width-type-auto kb-btn-global-inherit kt-btn-has-text-true kt-btn-has-svg-false wp-block-button__link\" type=\"submit\"><span class=\"kt-btn-inner-text\">G\u1eedi<\/span><\/button><\/div>\n<input type=\"hidden\" name=\"_kb_adv_form_post_id\" value=\"1246\"><input type=\"hidden\" name=\"action\" value=\"kb_process_advanced_form_submit\"><input type=\"hidden\" name=\"_kb_adv_form_id\" value=\"1246-cpt-id\"><input type=\"hidden\" name=\"trp-form-language\" value=\"vi\"\/><\/form><\/div>","protected":false},"excerpt":{"rendered":"<p>Quick Answer: An alumina slurry pump is a heavy-duty industrial pump engineered to transfer highly alkaline red&#8230;<\/p>","protected":false},"author":2,"featured_media":7119,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_kadence_starter_templates_imported_post":false,"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"footnotes":""},"categories":[12],"tags":[],"class_list":["post-7112","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"acf":[],"taxonomy_info":{"category":[{"value":12,"label":"Blog"}]},"featured_image_src_large":["https:\/\/changyupump.com\/wp-content\/uploads\/2026\/08\/Alumina-Slurry-Pump-Red-Mud-Bauxite-Transfer-in-Bayer-Process.webp",1000,750,false],"author_info":{"display_name":"Changyu_","author_link":"https:\/\/changyupump.com\/vi\/author\/changyu_\/"},"comment_info":0,"category_info":[{"term_id":12,"name":"Blog","slug":"blog","term_group":0,"term_taxonomy_id":12,"taxonomy":"category","description":"","parent":0,"count":191,"filter":"raw","cat_ID":12,"category_count":191,"category_description":"","cat_name":"Blog","category_nicename":"blog","category_parent":0}],"tag_info":false,"_links":{"self":[{"href":"https:\/\/changyupump.com\/vi\/wp-json\/wp\/v2\/posts\/7112","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/changyupump.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/changyupump.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/changyupump.com\/vi\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/changyupump.com\/vi\/wp-json\/wp\/v2\/comments?post=7112"}],"version-history":[{"count":9,"href":"https:\/\/changyupump.com\/vi\/wp-json\/wp\/v2\/posts\/7112\/revisions"}],"predecessor-version":[{"id":7122,"href":"https:\/\/changyupump.com\/vi\/wp-json\/wp\/v2\/posts\/7112\/revisions\/7122"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/changyupump.com\/vi\/wp-json\/wp\/v2\/media\/7119"}],"wp:attachment":[{"href":"https:\/\/changyupump.com\/vi\/wp-json\/wp\/v2\/media?parent=7112"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/changyupump.com\/vi\/wp-json\/wp\/v2\/categories?post=7112"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/changyupump.com\/vi\/wp-json\/wp\/v2\/tags?post=7112"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}