{"id":21684,"date":"2022-05-11T11:00:12","date_gmt":"2022-05-11T10:00:12","guid":{"rendered":"https:\/\/www.engineernewsnetwork.com\/blog\/?p=21684"},"modified":"2022-05-11T11:00:12","modified_gmt":"2022-05-11T10:00:12","slug":"non-clogging-pump-unit-with-ejector","status":"publish","type":"post","link":"https:\/\/www.engineernewsnetwork.com\/blog\/non-clogging-pump-unit-with-ejector\/","title":{"rendered":"Non-clogging pump unit with ejector"},"content":{"rendered":"\n

A European cardboard mill produces 240,000 tons of cardboard from wastepaper per year. The cardboard is used to make plasterboard and for packaging. Various effluents from the mill are collected in different steps of the process and then treated in a modern, integrated wastewater treatment plant. But the mill suffered from regular pump breakdowns in the fibre line effluent sump. Sulzer<\/a><\/strong> replaced the two existing submersible pumps by one non-clogging AHLSTAR NPP42-150 pump equipped with a Sulzer Ejector. After more than two years in operation, there has been no disturbance.<\/p>\n\n\n\n

The main effluents from the fibre line process are collected in a large, 2.5 m deep sump prior to being pumped further through rotary drum screens and sent to the wastewater treatment plant. The liquids in the sump have varying char- acteristics and can be highly polluted with all kinds of solid particles (fibres, clips, tapes, ropes, etc.).<\/p>\n\n\n\n

\"\"<\/a>
Sump pumping diagram<\/figcaption><\/figure><\/div>\n\n\n\n

The initially installed sump pumps failed frequently. The two non-Sulzer submersible pumps were regularly clogged, disturbing the whole process and generating high repair costs. The customer decided to look for a more reliable pumping system and asked Sulzer for help.<\/p>\n\n\n\n

After thorough discussions, the client and Sulzer agreed on a radical alternative: one dry-installed process pump with a complete priming system. An AHLSTAR NPP42-150 non-clogging pump unit with ejector soon replaced the fail- ing submersible pumps. The installation was fast and easy, and only minor piping modifications were needed.<\/p>\n\n\n\n

\"\"<\/a>
AHLSTAR non-clogging pump unit for wastewater sump<\/figcaption><\/figure><\/div>\n\n\n\n

The NPP42-150 pump unit is located above the liquid level in the sump. At each pump start, a fully automated priming is done in a few seconds with the Sulzer Ejector package. The NPP42-150 pump has been running smoothly for more than two years now, without any blockage. One of the initial submersible pumps was removed from the sump and the other one is kept as standby, only being used from time to time in parallel with the NPP42-150, when a maximum drainage flow is required.<\/p>\n\n\n\n

The AHLSTAR non-clogging NPP42-150 with vortex impeller is the right pump for sump applications where liquids are heavily polluted with debris and other big solid particles.<\/p>\n\n\n\n

\"\"<\/a>
Complete Sulzer Ejector package<\/figcaption><\/figure><\/div>\n\n\n\n

The previously installed submersible pumps were of cast iron, whereas all the wetted parts of the NPP42-150 pump are of duplex stainless steel. This material is ideal for liquids which can be both corrosive and abrasive. It ensures a much longer pump service life with minimum wear of parts.<\/p>\n\n\n\n

The NPP42-150 pump unit is above the sump liquid level, and this makes all maintenance operations rapid and safe. Several other AHLSTAR process pumps are installed in the cardboard mill. The inventory control of spares is therefore easy.<\/p>\n\n\n\n

\"\"<\/a>
Plasterboard is made from cardboard sheets glued with a gypsum mixture<\/figcaption><\/figure><\/div>\n\n\n\n

The Sulzer Ejector is an inexpensive and simple device powered by compressed air from the mill network. It allows full priming of the inlet pipe and pump in a few seconds. After priming, the ejector is stopped, and the NPP42-150 pump starts running. No compressed air is required during normal pumping operation.<\/p>\n\n\n\n

Product data<\/p>\n\n\n\n

AHLSTAR non-clogging pump unit for wastewater sump (pit depth 2.5 m)<\/p>\n\n\n\n

Flow: 350 m\u00b3\/h<\/p>\n\n\n\n

Head: 20m<\/p>\n\n\n\n

Speed: 1,000rpm<\/p>\n\n\n\n

Motor power: 55kW<\/p>\n\n\n\n

Impeller: Vortex \u2013 340mm<\/p>\n\n\n\n

Max. solids passage:80 mm<\/p>\n\n\n\n

NPSHr: 5 mcL<\/p>\n\n\n\n

Complete Sulzer Ejector package including ejector; valves with actuators for motive air and ejection suction pipe; level control switch; control box with logic.<\/p>\n","protected":false},"excerpt":{"rendered":"

A European cardboard mill produces 240,000 tons of cardboard from wastepaper per year. The cardboard is used to make plasterboard and for packaging. Various effluents from the mill are collected in different steps of the process and then treated in a modern, integrated wastewater treatment plant. But the mill suffered from regular pump breakdowns in …<\/p>\n","protected":false},"author":1,"featured_media":21685,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[10209,10210,10211,10208],"class_list":["post-21684","post","type-post","status-publish","format-standard","has-post-thumbnail","","category-process","tag-ahlstar","tag-ahlstar-npp42-150-pump","tag-sulzer-ejector","tag-sump-pumping"],"yoast_head":"\nNon-clogging pump unit with ejector - Engineer News Network<\/title>\n<meta name=\"description\" content=\"AHLSTAR with Sulzer Ejector improves sump pumping in a cardboard mill\" \/>\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.engineernewsnetwork.com\/blog\/non-clogging-pump-unit-with-ejector\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Non-clogging pump unit with ejector - Engineer News Network\" \/>\n<meta property=\"og:description\" content=\"AHLSTAR with Sulzer Ejector improves sump pumping in a cardboard mill\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.engineernewsnetwork.com\/blog\/non-clogging-pump-unit-with-ejector\/\" \/>\n<meta property=\"og:site_name\" content=\"Engineer News Network\" \/>\n<meta property=\"article:published_time\" content=\"2022-05-11T10:00:12+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.engineernewsnetwork.com\/blog\/wp-content\/uploads\/2022\/05\/SulzerPEIND037_1_PR7047_42371.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1500\" \/>\n\t<meta property=\"og:image:height\" content=\"1012\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"Estimated reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/non-clogging-pump-unit-with-ejector\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/non-clogging-pump-unit-with-ejector\\\/\"},\"author\":{\"name\":\"admin\",\"@id\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/#\\\/schema\\\/person\\\/4477342aea8e299c6a21761e513ea8e1\"},\"headline\":\"Non-clogging pump unit with ejector\",\"datePublished\":\"2022-05-11T10:00:12+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/non-clogging-pump-unit-with-ejector\\\/\"},\"wordCount\":579,\"image\":{\"@id\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/non-clogging-pump-unit-with-ejector\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/wp-content\\\/uploads\\\/2022\\\/05\\\/SulzerPEIND037_1_PR7047_42371.jpg\",\"keywords\":[\"AHLSTAR\",\"AHLSTAR NPP42-150 pump\",\"Sulzer Ejector\",\"sump pumping\"],\"articleSection\":[\"Process\"],\"inLanguage\":\"en-GB\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/non-clogging-pump-unit-with-ejector\\\/\",\"url\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/non-clogging-pump-unit-with-ejector\\\/\",\"name\":\"Non-clogging pump unit with ejector - Engineer News Network\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/non-clogging-pump-unit-with-ejector\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/non-clogging-pump-unit-with-ejector\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/wp-content\\\/uploads\\\/2022\\\/05\\\/SulzerPEIND037_1_PR7047_42371.jpg\",\"datePublished\":\"2022-05-11T10:00:12+00:00\",\"author\":{\"@id\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/#\\\/schema\\\/person\\\/4477342aea8e299c6a21761e513ea8e1\"},\"description\":\"AHLSTAR with Sulzer Ejector improves sump pumping in a cardboard mill\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/non-clogging-pump-unit-with-ejector\\\/#breadcrumb\"},\"inLanguage\":\"en-GB\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/non-clogging-pump-unit-with-ejector\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-GB\",\"@id\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/non-clogging-pump-unit-with-ejector\\\/#primaryimage\",\"url\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/wp-content\\\/uploads\\\/2022\\\/05\\\/SulzerPEIND037_1_PR7047_42371.jpg\",\"contentUrl\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/wp-content\\\/uploads\\\/2022\\\/05\\\/SulzerPEIND037_1_PR7047_42371.jpg\",\"width\":1500,\"height\":1012,\"caption\":\"AHLSTAR with Sulzer Ejector improves sump pumping in a cardboard mill\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/non-clogging-pump-unit-with-ejector\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Non-clogging pump unit with ejector\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/#website\",\"url\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/\",\"name\":\"Engineer News Network\",\"description\":\"The ultimate online news and information resource for today's engineer\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-GB\"},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/#\\\/schema\\\/person\\\/4477342aea8e299c6a21761e513ea8e1\",\"name\":\"admin\",\"url\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/author\\\/admin\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Non-clogging pump unit with ejector - Engineer News Network","description":"AHLSTAR with Sulzer Ejector improves sump pumping in a cardboard mill","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.engineernewsnetwork.com\/blog\/non-clogging-pump-unit-with-ejector\/","og_locale":"en_GB","og_type":"article","og_title":"Non-clogging pump unit with ejector - Engineer News Network","og_description":"AHLSTAR with Sulzer Ejector improves sump pumping in a cardboard mill","og_url":"https:\/\/www.engineernewsnetwork.com\/blog\/non-clogging-pump-unit-with-ejector\/","og_site_name":"Engineer News Network","article_published_time":"2022-05-11T10:00:12+00:00","og_image":[{"width":1500,"height":1012,"url":"https:\/\/www.engineernewsnetwork.com\/blog\/wp-content\/uploads\/2022\/05\/SulzerPEIND037_1_PR7047_42371.jpg","type":"image\/jpeg"}],"author":"admin","twitter_card":"summary_large_image","twitter_misc":{"Written by":"admin","Estimated reading time":"4 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.engineernewsnetwork.com\/blog\/non-clogging-pump-unit-with-ejector\/#article","isPartOf":{"@id":"https:\/\/www.engineernewsnetwork.com\/blog\/non-clogging-pump-unit-with-ejector\/"},"author":{"name":"admin","@id":"https:\/\/www.engineernewsnetwork.com\/blog\/#\/schema\/person\/4477342aea8e299c6a21761e513ea8e1"},"headline":"Non-clogging pump unit with ejector","datePublished":"2022-05-11T10:00:12+00:00","mainEntityOfPage":{"@id":"https:\/\/www.engineernewsnetwork.com\/blog\/non-clogging-pump-unit-with-ejector\/"},"wordCount":579,"image":{"@id":"https:\/\/www.engineernewsnetwork.com\/blog\/non-clogging-pump-unit-with-ejector\/#primaryimage"},"thumbnailUrl":"https:\/\/www.engineernewsnetwork.com\/blog\/wp-content\/uploads\/2022\/05\/SulzerPEIND037_1_PR7047_42371.jpg","keywords":["AHLSTAR","AHLSTAR NPP42-150 pump","Sulzer Ejector","sump pumping"],"articleSection":["Process"],"inLanguage":"en-GB"},{"@type":"WebPage","@id":"https:\/\/www.engineernewsnetwork.com\/blog\/non-clogging-pump-unit-with-ejector\/","url":"https:\/\/www.engineernewsnetwork.com\/blog\/non-clogging-pump-unit-with-ejector\/","name":"Non-clogging pump unit with ejector - Engineer News Network","isPartOf":{"@id":"https:\/\/www.engineernewsnetwork.com\/blog\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.engineernewsnetwork.com\/blog\/non-clogging-pump-unit-with-ejector\/#primaryimage"},"image":{"@id":"https:\/\/www.engineernewsnetwork.com\/blog\/non-clogging-pump-unit-with-ejector\/#primaryimage"},"thumbnailUrl":"https:\/\/www.engineernewsnetwork.com\/blog\/wp-content\/uploads\/2022\/05\/SulzerPEIND037_1_PR7047_42371.jpg","datePublished":"2022-05-11T10:00:12+00:00","author":{"@id":"https:\/\/www.engineernewsnetwork.com\/blog\/#\/schema\/person\/4477342aea8e299c6a21761e513ea8e1"},"description":"AHLSTAR with Sulzer Ejector improves sump pumping in a cardboard mill","breadcrumb":{"@id":"https:\/\/www.engineernewsnetwork.com\/blog\/non-clogging-pump-unit-with-ejector\/#breadcrumb"},"inLanguage":"en-GB","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.engineernewsnetwork.com\/blog\/non-clogging-pump-unit-with-ejector\/"]}]},{"@type":"ImageObject","inLanguage":"en-GB","@id":"https:\/\/www.engineernewsnetwork.com\/blog\/non-clogging-pump-unit-with-ejector\/#primaryimage","url":"https:\/\/www.engineernewsnetwork.com\/blog\/wp-content\/uploads\/2022\/05\/SulzerPEIND037_1_PR7047_42371.jpg","contentUrl":"https:\/\/www.engineernewsnetwork.com\/blog\/wp-content\/uploads\/2022\/05\/SulzerPEIND037_1_PR7047_42371.jpg","width":1500,"height":1012,"caption":"AHLSTAR with Sulzer Ejector improves sump pumping in a cardboard mill"},{"@type":"BreadcrumbList","@id":"https:\/\/www.engineernewsnetwork.com\/blog\/non-clogging-pump-unit-with-ejector\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.engineernewsnetwork.com\/blog\/"},{"@type":"ListItem","position":2,"name":"Non-clogging pump unit with ejector"}]},{"@type":"WebSite","@id":"https:\/\/www.engineernewsnetwork.com\/blog\/#website","url":"https:\/\/www.engineernewsnetwork.com\/blog\/","name":"Engineer News Network","description":"The ultimate online news and information resource for today's engineer","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.engineernewsnetwork.com\/blog\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-GB"},{"@type":"Person","@id":"https:\/\/www.engineernewsnetwork.com\/blog\/#\/schema\/person\/4477342aea8e299c6a21761e513ea8e1","name":"admin","url":"https:\/\/www.engineernewsnetwork.com\/blog\/author\/admin\/"}]}},"_links":{"self":[{"href":"https:\/\/www.engineernewsnetwork.com\/blog\/wp-json\/wp\/v2\/posts\/21684","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.engineernewsnetwork.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.engineernewsnetwork.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.engineernewsnetwork.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.engineernewsnetwork.com\/blog\/wp-json\/wp\/v2\/comments?post=21684"}],"version-history":[{"count":1,"href":"https:\/\/www.engineernewsnetwork.com\/blog\/wp-json\/wp\/v2\/posts\/21684\/revisions"}],"predecessor-version":[{"id":21690,"href":"https:\/\/www.engineernewsnetwork.com\/blog\/wp-json\/wp\/v2\/posts\/21684\/revisions\/21690"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.engineernewsnetwork.com\/blog\/wp-json\/wp\/v2\/media\/21685"}],"wp:attachment":[{"href":"https:\/\/www.engineernewsnetwork.com\/blog\/wp-json\/wp\/v2\/media?parent=21684"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.engineernewsnetwork.com\/blog\/wp-json\/wp\/v2\/categories?post=21684"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.engineernewsnetwork.com\/blog\/wp-json\/wp\/v2\/tags?post=21684"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}