{"id":235,"date":"2015-11-08T07:15:50","date_gmt":"2015-11-08T07:15:50","guid":{"rendered":"http:\/\/emo-iran.com\/en\/?p=235"},"modified":"2015-12-04T09:28:12","modified_gmt":"2015-12-04T09:28:12","slug":"aerator-2","status":"publish","type":"post","link":"https:\/\/emo-iran.com\/en\/product\/aerator-2\/","title":{"rendered":"Low Speed Vertical Shaft Surface Aerator"},"content":{"rendered":"<p dir=\"ltr\"><strong>Low Speed Surface aerator ( AIRMAX )\u00a0<\/strong><\/p>\n<p dir=\"ltr\">Low Speed surface aerators are used for aeration and mixing .<\/p>\n<p dir=\"ltr\">The\u00a0Low Speed Surface aerator\u00a0AIRMAX presents all the required qualities for efficient aeration of\u00a0biological plants.<\/p>\n<p dir=\"ltr\"><!--more--><\/p>\n<p dir=\"ltr\"><img loading=\"lazy\" src=\"http:\/\/www.water-aerator.com\/images\/Airmax\/low-speed-surface-aerator-impeller.jpg\" alt=\"low-speed-surface-aerator-impeller\" width=\"479\" height=\"359\" \/><\/p>\n<p dir=\"ltr\">The main advantages of the low speed surface aerator are:<\/p>\n<ul dir=\"ltr\">\n<li>Very high oxygen input in standard conditions per unit<\/li>\n<li>Stable oxygen input in time<\/li>\n<li>Nearly no maintenance<\/li>\n<li>Very high efficiency&gt;2kgO<sub>2<\/sub>\/kwh ac\u00a0 to EN 12-255-15 due to very slow rotaion speed<\/li>\n<\/ul>\n<p dir=\"ltr\">KAMPS\u00a0ensures the engineering,\u00a0manufacturing, supply and installation of the aerators.<\/p>\n<p dir=\"ltr\">General\u00a0Surface aerators will be mechanical aerators of clog freedesign suitable for installation on reinforced concrete supporting structures within the aeration tanks. Each assembly will be completed weather proof and satisfactory for operation conditions duty and environment specified.<br \/>\nThe impeller that can be in contact with sewage water will be obligatory in carbon steel protected by epoxy coating. Each unit shall be individually driven by an electric motor through a reduction gearbox. The aerators are low-speed, open type use for oxidation ditches, tanks or lagoons. Vertical aerators will have rigid coupling between gearboxand aerator shaft.<\/p>\n<p dir=\"ltr\">The aerator installation will generally consist of the following parts: \u0089<\/p>\n<p dir=\"ltr\">Impeller Intermediate shaft<br \/>\n\u0089 Foundation plate<br \/>\n\u0089 Rigid coupling between shaft and gearbox<br \/>\n\u0089 Heavy duty gearbox<br \/>\n\u0089 Flexible coupling between gearbox and E motor<br \/>\n\u0089 E-motor<br \/>\nConstruction<br \/>\nIn order to reach a no clogging impeller, the impeller has to be a flat base plate with anti clogging blades. The number of blades is minimum 12and each blade is oriented with an angle of 30\u00b0 in order to reach a good spread of splashing water in the space around the aerator. The impellers have to be provided with three lifting lugs for easy installation. The shaft is connected to the drive unit by means of a rigid coupling. All parts are connected with\u00a0strength fastenings hot galvanized bolts. The foundation plate is provided with hot galvanized bolts to enable the horizontal adjustment during erection. Those bolts will be embedded in concrete deck that ensures a robust and vibration free mounting construction.\u00a0The coating of the aerator is epoxy suitable for sewage water. The minimum protection requirement is after SA2\u00bd blast cleaned two layers of minimum 150 microns epoxy coating.<br \/>\nImpeller in polyester is not allowed<\/p>\n<p dir=\"ltr\">Design :<br \/>\nThe diameter of the aerator must be designed as following:<br \/>\nD = 0,15 x(SOTR) 1\/2\u00a0+ 0.8(*)<br \/>\nwhere: D= diameter in m<br \/>\nSOTR = Standard Oxygen Transfer Rate in kg O2\/h in drinking water<br \/>\nAccording EN 12-255-15<br \/>\nThose diameters can be higher to achieve a much better mixing.<br \/>\n(*) For Carrousel system, replace 0.8 by 1.<\/p>\n<p dir=\"ltr\">The peripheral speed of the aerator is not exceeding 5.5 m\/sec so that the possibility of sludge break-up is kept to a minimum. The complete units will be capable of being started with aerator at the operating depth of submergence. The up-trust of the aerator assembly will be equal or lower than the total weight of the impeller assembly in order to guarantee the longest life time of the gearbox. The mains characteristics are:\u0089 Low axial and radial forces ( no up-trust above impeller weight) \u0089 Optimum efficiency \u0089 Propulsion capacity and mixing capacity in oxidation ditches \u0089 No-clogging of the aerator<br \/>\n\u0089 Hardly any maintenance Accuracy of performance is according ATV M 209 or EN 12-255-15. Gearboxes\u00a0The gearbox unit will have a design life of not less than 100.000 hours according to AGMAand be selected in accordance with recommendations for power transmission calculation. For the selection of the gearboxes, the service factor is minimum 1.75 between nominal AGMA power of gearboxes and shaft power for oxidation ditches, and 1.5 for complete mixed tank. Those factors are respectively 2 and 1.75 in case of oxidation ditches. Gearboxes will be designed for continuous 24 hours\/day operations and be classified for medium shock loading. The efficiency of the gearbox is not less than 99% per stage. The lantern on the gearbox is an obligation It is possible to dis-assembly the gearbox on site. The gears and pinion shafts are manufactured from alloy steel, precision grinded to ensure high efficiency, maximum tooth strength low noise and vibration level.<\/p>\n<p dir=\"ltr\">\n","protected":false},"excerpt":{"rendered":"<p>Low Speed Surface aerator ( AIRMAX )\u00a0 Low Speed surface aerators are used for aeration and mixing . The\u00a0Low Speed Surface aerator\u00a0AIRMAX presents all the required qualities for efficient aeration of\u00a0biological plants.<\/p>\n","protected":false},"author":1,"featured_media":236,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[13],"tags":[],"_links":{"self":[{"href":"https:\/\/emo-iran.com\/en\/wp-json\/wp\/v2\/posts\/235"}],"collection":[{"href":"https:\/\/emo-iran.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/emo-iran.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/emo-iran.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/emo-iran.com\/en\/wp-json\/wp\/v2\/comments?post=235"}],"version-history":[{"count":12,"href":"https:\/\/emo-iran.com\/en\/wp-json\/wp\/v2\/posts\/235\/revisions"}],"predecessor-version":[{"id":238,"href":"https:\/\/emo-iran.com\/en\/wp-json\/wp\/v2\/posts\/235\/revisions\/238"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/emo-iran.com\/en\/wp-json\/wp\/v2\/media\/236"}],"wp:attachment":[{"href":"https:\/\/emo-iran.com\/en\/wp-json\/wp\/v2\/media?parent=235"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/emo-iran.com\/en\/wp-json\/wp\/v2\/categories?post=235"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/emo-iran.com\/en\/wp-json\/wp\/v2\/tags?post=235"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}