{"id":267,"date":"2015-08-30T19:58:00","date_gmt":"2015-08-30T19:58:00","guid":{"rendered":"http:\/\/machineryequipmentonline.com\/hydraulics-and-pneumatics\/uncategorized\/review-of-pneumatic-conveying-systemsmobile-systems\/"},"modified":"2015-08-30T19:58:00","modified_gmt":"2015-08-30T19:58:00","slug":"review-of-pneumatic-conveying-systemsmobile-systems","status":"publish","type":"post","link":"http:\/\/machineryequipmentonline.com\/hydraulics-and-pneumatics\/review-of-pneumatic-conveying-systemsmobile-systems\/","title":{"rendered":"Review of pneumatic conveying systems:Mobile systems"},"content":{"rendered":"<div class=\"qtdhk6a0dbd9436339\" ><script type=\"text\/javascript\">\n\tatOptions = {\n\t\t'key' : '61e5902552e2353963d8d2f1bd1f4a8f',\n\t\t'format' : 'iframe',\n\t\t'height' : 250,\n\t\t'width' : 300,\n\t\t'params' : {}\n\t};\n<\/script>\n<script type=\"text\/javascript\" src=\"\/\/www.highperformanceformat.com\/61e5902552e2353963d8d2f1bd1f4a8f\/invoke.js\"><\/script><\/div><style type=\"text\/css\">\r\n@media screen and (min-width: 1201px) {\r\n.qtdhk6a0dbd9436339 {\r\ndisplay: block;\r\n}\r\n}\r\n@media screen and (min-width: 993px) and (max-width: 1200px) {\r\n.qtdhk6a0dbd9436339 {\r\ndisplay: block;\r\n}\r\n}\r\n@media screen and (min-width: 769px) and (max-width: 992px) {\r\n.qtdhk6a0dbd9436339 {\r\ndisplay: block;\r\n}\r\n}\r\n@media screen and (min-width: 768px) and (max-width: 768px) {\r\n.qtdhk6a0dbd9436339 {\r\ndisplay: block;\r\n}\r\n}\r\n@media screen and (max-width: 767px) {\r\n.qtdhk6a0dbd9436339 {\r\ndisplay: block;\r\n}\r\n}\r\n<\/style>\r\n<h3 align=\"justify\">Mobile systems<\/h3>\n<p align=\"justify\">The systems illustrated above have all been fixed in a given location and the only mobility has been in terms of vacuum nozzles where, with flexible hose, limited movement is possible such as that required for ship off-loading and the clearing of materials  <\/p>\n<p align=\"justify\"><a href=\"http:\/\/lh3.googleusercontent.com\/-xQjHoh8A7bY\/VeNgOSFla6I\/AAAAAAAB5BY\/xrbaNWPo93k\/s1600-h\/Review-of-pneumatic-conveying-system.jpg\"><img decoding=\"async\" loading=\"lazy\" style=\"background-image: none; border-right-width: 0px; margin: 0px auto; padding-left: 0px; padding-right: 0px; display: block; float: none; border-top-width: 0px; border-bottom-width: 0px; border-left-width: 0px; padding-top: 0px\" title=\"Review of pneumatic conveying systems-0016\" border=\"0\" alt=\"Review of pneumatic conveying systems-0016\" src=\"http:\/\/lh3.googleusercontent.com\/-MkgUN7ae7RA\/VeNgVtj-zdI\/AAAAAAAB5CM\/4zm4y9Boop4\/Review-of-pneumatic-conveying-system%25255B2%25255D.jpg?imgmax=800\" width=\"244\" height=\"144\" \/><\/a>  <\/p>\n<p align=\"justify\">from stockpiles and spillages. Many bulk particulate materials are transported from one location to another by road, rail and sea.  <\/p>\n<p align=\"justify\">Many materials, of course, are transported in a pre-packaged form, or in bulk containers, and can be transported by road, rail, sea or air, in a similar manner to any other commodity. Many transport systems, however, are specifically designed for bulk particulate materials and have a capability of self-loading, self-off-loading or both. These are generally mobile versions of the above static conveying systems, depending upon the application and duty.  <\/p>\n<p align=\"justify\">Where materials are transported by road, rail and sea they will be subject to con- siderable vibration, and hence compaction and de-aeration, and so this must be taken into consideration when designing the off-loading facilities.  <\/p>\n<h4 align=\"justify\">Road vehicles<\/h4>\n<p align=\"justify\">Many road sweeping vehicles employ vacuum conveying for their operation. These are generally single stage in operation with an on-board exhauster providing the power for material pick-up. The reception hopper on-board the vehicle is generally hinged so that it can be off-loaded by gravity. Vehicles used for clearing materials from stock- piles are generally designed on the basis of Figure 2.5 so that they have the capability of delivering the collected material into a reception vessel.  <\/p><div class=\"oacon6a0dbd9436520\" ><script type=\"text\/javascript\">\n\tatOptions = {\n\t\t'key' : '0c1eb4c533eaedb7b996f49a5a4983a9',\n\t\t'format' : 'iframe',\n\t\t'height' : 300,\n\t\t'width' : 160,\n\t\t'params' : {}\n\t};\n<\/script>\n<script type=\"text\/javascript\" src=\"\/\/www.highperformanceformat.com\/0c1eb4c533eaedb7b996f49a5a4983a9\/invoke.js\"><\/script><\/div><style type=\"text\/css\">\r\n@media screen and (min-width: 1201px) {\r\n.oacon6a0dbd9436520 {\r\ndisplay: block;\r\n}\r\n}\r\n@media screen and (min-width: 993px) and (max-width: 1200px) {\r\n.oacon6a0dbd9436520 {\r\ndisplay: block;\r\n}\r\n}\r\n@media screen and (min-width: 769px) and (max-width: 992px) {\r\n.oacon6a0dbd9436520 {\r\ndisplay: block;\r\n}\r\n}\r\n@media screen and (min-width: 768px) and (max-width: 768px) {\r\n.oacon6a0dbd9436520 {\r\ndisplay: block;\r\n}\r\n}\r\n@media screen and (max-width: 767px) {\r\n.oacon6a0dbd9436520 {\r\ndisplay: block;\r\n}\r\n}\r\n<\/style>\r\n<div class=\"uizvp6a0dbd9436424\" ><script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-0778475562755157\"\n     crossorigin=\"anonymous\"><\/script>\n<!-- 300x600 hydraulics-and-pneumatics -->\n<ins class=\"adsbygoogle\"\n     style=\"display:inline-block;width:300px;height:600px\"\n     data-ad-client=\"ca-pub-0778475562755157\"\n     data-ad-slot=\"3735577695\"><\/ins>\n<script>\n     (adsbygoogle = window.adsbygoogle || []).push({});\n<\/script><\/div><style type=\"text\/css\">\r\n@media screen and (min-width: 1201px) {\r\n.uizvp6a0dbd9436424 {\r\ndisplay: block;\r\n}\r\n}\r\n@media screen and (min-width: 993px) and (max-width: 1200px) {\r\n.uizvp6a0dbd9436424 {\r\ndisplay: block;\r\n}\r\n}\r\n@media screen and (min-width: 769px) and (max-width: 992px) {\r\n.uizvp6a0dbd9436424 {\r\ndisplay: block;\r\n}\r\n}\r\n@media screen and (min-width: 768px) and (max-width: 768px) {\r\n.uizvp6a0dbd9436424 {\r\ndisplay: block;\r\n}\r\n}\r\n@media screen and (max-width: 767px) {\r\n.uizvp6a0dbd9436424 {\r\ndisplay: block;\r\n}\r\n}\r\n<\/style>\r\n\n<p align=\"justify\">Road vehicles are widely used for the transport of a multitude of bulk particulate materials, such as cement; sugar, flour and milk powder in the food industry; sand and soda ash in the glass industry; and nylon, PVC and polyethylene in the chemical indus- try. Road vehicles often have their own positive displacement blower mounted on-board and so can off-load their materials independently of delivery depot facilities. The material-containing vessel on-board doubles as a reception hopper for the collection of material and its ultimate discharge. This may be tipped to facilitate discharge, which can be via a rotary valve, or the vessel may be capable of being pressurized so that it discharges as a blow tank.  <\/p>\n<h4 align=\"justify\">Rail vehicles<\/h4>\n<p align=\"justify\">Railway wagons generally rely on delivery depot facilities for off-loading, because of their length tilting is not an option and multiple point off-loading is often employed. They may be off-loaded by rotary valve, or the wagon may be capable of being pres- surized so that it can be off-loaded as a blow tank.  <\/p>\n<p align=\"justify\">Whereas road vehicles are typically designed to operate with air at 1 bar gauge for this purpose, railway wagons are generally designed to 2 bar gauge and a full length wagon can usually be off-loaded in about 1 h. The base of the wagon is generally sloped at about 5 degrees in herringbone fashion around each discharge point and fluidized to facilitate removal of as much of the material as possible.  <\/p>\n<h4 align=\"justify\">Ships<\/h4>\n<p align=\"justify\">Large bulk carriers usually rely on port facilities for off-loading and these are generally similar to that depicted in Figure 2.6. Intermediate bulk carriers, however, often have on-board facilities for self-off-loading. Such vessels are often used for the transfer of materials, such as cement, to storage depots at ports for local supply, or to off-shore drilling rigs.  <\/p>\n<p align=\"justify\">Materials are typically transferred from storage holds in the ship by a combination of air-assisted gravity conveyors and vacuum conveying systems, into twin blow tanks located in the centre of the vessel. High pressure air is supplied by on-board diesel driven compressors and materials are conveyed to dock-side storage facilities through flexible rubber hose, which solves the problems of both location and tidal movements.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Mobile systems The systems illustrated above have all been fixed in a given location and the only mobility has been in terms of vacuum nozzles where, with flexible hose, limited movement is possible such as that required for ship off-loading and the clearing of materials from stockpiles and spillages. Many bulk particulate materials are transported [&hellip;]<br \/><a href=\"http:\/\/machineryequipmentonline.com\/hydraulics-and-pneumatics\/review-of-pneumatic-conveying-systemsmobile-systems\/\" class=\"more-link\" >Continue reading&#8230;<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[],"_links":{"self":[{"href":"http:\/\/machineryequipmentonline.com\/hydraulics-and-pneumatics\/wp-json\/wp\/v2\/posts\/267"}],"collection":[{"href":"http:\/\/machineryequipmentonline.com\/hydraulics-and-pneumatics\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/machineryequipmentonline.com\/hydraulics-and-pneumatics\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/machineryequipmentonline.com\/hydraulics-and-pneumatics\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/machineryequipmentonline.com\/hydraulics-and-pneumatics\/wp-json\/wp\/v2\/comments?post=267"}],"version-history":[{"count":0,"href":"http:\/\/machineryequipmentonline.com\/hydraulics-and-pneumatics\/wp-json\/wp\/v2\/posts\/267\/revisions"}],"wp:attachment":[{"href":"http:\/\/machineryequipmentonline.com\/hydraulics-and-pneumatics\/wp-json\/wp\/v2\/media?parent=267"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/machineryequipmentonline.com\/hydraulics-and-pneumatics\/wp-json\/wp\/v2\/categories?post=267"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/machineryequipmentonline.com\/hydraulics-and-pneumatics\/wp-json\/wp\/v2\/tags?post=267"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}