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_. _. 1 r ... '..L X. <br />North F1 ask RiyerEosinS-Cc?q% a <br />TLC conv_yarr syste m &h:ch wi:l Orry :bgregate 31=44 the ColoyaJO giver was dc,: <br />t?? n?:r ?c,:ae tie retn:,tial of tars (s1Png iLt slignrnen late ca?av8yo; i3 toFrvaiirately <br />i94(-! feet ;one and tea fact 'vide: oxee?t far tine spar.:sexoes tine main rivur "unei vy: , <br />i_ ender Sue to a pan ins'salled to asautc t;trE no rocks cr debris fill into tier *a. .X <br />corrrowr *IH %I M walkway on both sides for the entire length of the cover. r to allow <br />for in;_oectitm and belt bainning. The cemveyar was ee%8ned to allow gars and boaters <br />tr pass easily rude cea b with ei& :ect of clearance in Aor.4al higi? water and six feet of <br />c eacanee in the one brtndred year flood Tlnc wildlife crossing area is 4o feet wik with <br />to, feet of ove stead clearance. The attached drawing depicts awm elc.atim_ <br />The ennveyor system will be design to require a miafmum amount of maintea uKr <br />l.tfarge will use a device call a'Selt Flipper" that will tuts the conveyor belt over at the <br />diseltw p e r4 preventing the fine materW that may stick to the bat from fatting oft <br />while rebo.-ning to the feed and of the conveyor, tlms eliminating any clean up in the aria <br />in giestion The `Belt Flipper" wi11 also gently reduce the potential for *:is fine satanic <br />to hall into the Colorado River dining the retLm trip across the channel. The ()n!y <br />conveyor wmponeW 1n rite atria wM be Trou&ng Rollers (rop side), and Rctum <br />Rollers (Botwal Side/, these NUuS will have sealed beninp- with a typiod life of to t1w. <br />hours, and will be new for this application. Thcrcfoce there will be no rr.l telanCe <br />requirad other than the nephteenie w of rollers which should be mwimal.'[ha rollers can <br />be moved via the w#avsys on a two wheeled dolly from ether cad. Once the conveyor is <br />insnliod there Amid be no mum to acc= the area with velnc;es or Wit, until the <br />deoonizoLvatoning and cNNeyo: removal. <br />The material that is deposited under the conveyor is typically caused by the fine material <br />than. stays an thr ooaveyor belt after the bulk of U material is aisehned at the head <br />pulloy. Thera are a number of methods for rotbtcing or alinurmting this. The we of a belt <br />surapet, which is a Emb!a blade that contacts the belt at the bwJ ptiiley to scrape the <br />material off Qw bdt as it is returning on the lower side of rite conveyor, wtl retmove tae <br />majority ofthe tines. <br />In the case ofwe t or sticky material the scraper may not do the cvmpiete job. The <br />remaining mateaal will fall off the bait as it contacm each raven toner (The top of the <br />belt is now the bottom). The common nrediod to deal tis is to install a coutintiolm 4., " <br />Wow tine return side of the belt 'ibis pan is cleaned of debris w1m t&a conveyor is shut <br />down to a6stlre mdWy mtastaes arc follow of Thais pan will be installed on tke portion of <br />its conveyor tha traverses tha main river chance?. The "Belt Flipper" which guides the <br />belt on the return side so the maurisl side of the belt is flipped over to become the top on <br />the rerun side wiH be used along the entire length of the conveyor. Tles happen, wnthin <br />1 OW of the discharge point, and than agar at the rail of the conveyor returning it to rite <br />original position. By doing this the small amount of fiaea remamiog on the belt ate <br />discharge ii contained until it rearlics tl:e tail of the conveyor. The belt scrapes is rho <br />used in this configuration. <br />EX11i6ti'