1. Inkqubo yokomisa ifilimu encinci ihamba
Inkqubo ye-sludge medium: i-sludge emanzi efumana umgqomo + impompo yokuhanjiswa kodaka + isomisi bhanyabhanya esibhityileyo + isixhobo sokukhupha udaka esinesiqingatha esomileyo + isisomisi esinemigca + epholileyo yemveliso.
Inkqubo yokukhupha igesi ephakathi: umphunga ophuma ngumphunga (umphunga oxutyiweyo)+ ibhokisi yerhasi yenkunkuma + icondenser + inkungu yokuphelisa inkungu + eyenzelwe idrafti yefeni + isixhobo sokuvumba.
I-sludge kwi-sludge yokufumana umgqomo ithunyelwa ngokuthe ngqo kwi-dryer yefilimu ebhityileyo ngepompo ye-sludge screw yokomisa unyango. I-sludge inlet yesomisi esincinci sefilimu sixhotyiswe nge-valve yesango ye-knife ye-pneumatic, edibeneyo kunye nemilinganiselo yokulawula ingqiqo yempompo yokutya, i-screw yokutya, ukhuseleko lokukhusela ifilimu ebhityileyo kunye nezinye izixhobo kunye nezixhobo zokubona.
Imodeli yomzimba yomshini wokomisa ifilimu, ubunzima bomatshini omnye yi-33 000 kg, ubungakanani bomnatha besixhobo yi-Φ1 800 × 15 180, ulungelelwaniso oluthe tye kunye nofakelo, i-sludge engena kwindawo eyomileyo yefilimu isasazwa ngokulinganayo kwindawo eshushu. umphezulu wodonga lwesomisi nge-rotor ngexesha lenkqubo yokujikeleza, ngelixa i-paddle kwi-rotor iphinda iphinda idibanise i-sludge kwindawo yodonga olushushu, Kwaye phambili ekuphumeni kwe-sludge, amanzi kwi-sludge aphuphuma kwinkqubo. . Amasuntswana e-semi-dry sludge emva kokumiswa ukusuka kumaleko abhityileyo athunyelwa kwi-linear dryer nge-sludge conveyor (eyenziwe ngokwemfuno yokufuma kwemveliso ye-sludge), emva koko ungene kwi-sludge cooler. Imveliso ye-sludge ipholiswa ngumoya ohamba kwindawo epholileyo kunye namanzi okupholisa ahamba kwiqokobhe kunye ne-shaft ejikelezayo. Isiqulatho sokufuma sicuthiwe ukusuka kwi-80% ukuya kwi-35% (ubumanzi bodaka oluyi-35% yinkqubo yokulawula umda ophezulu wesixhobo esinye sesomisi sefilim esibhityileyo).
Irhasi ehambisa igesi ekhutshwe kwi-dryer yefilimu encinci iqulethe umphunga wamanzi amaninzi, uthuli kunye nomlinganiselo othile wegesi eguquguqukayo (ikakhulukazi i-H2S kunye ne-NH3). Ukuba ikhutshwe ngokuthe ngqo, iya kubangela iqondo elithile lokungcoliseka kwendalo. Ngoko ke, le projekthi iqwalasela inkqubo yokuqokelela igesi yokuthwala kunye ne-condenser kunye ne-mist remover ukususa uthuli kunye nomphunga wamanzi kwi-exhaust gas, echasene nolwalathiso lwentshukumo ye-sludge kwi-cylinder ejikelezayo. Umbhobho wegesi ophumayo ngaphezu kodaka ungena kwi-condenser, kwaye amanzi apholiswa phantsi kwi-evaporation yokukhupha igesi. Ngokutshintshana kobushushu obungathanga ngqo, amanzi okutshizwa asuswa ngokutshintsha ubushushu bepleyiti kunye nenqaba yokupholisa, ukuze kugcinwe amanzi kunye nokunciphisa ukukhutshwa kwelindle. Igesi engabonakaliyo (ixabiso elincinci lomphunga, i-N2, i-air and sludge volatiles) idlula kwi-demister. Ekugqibeleni, i-fan yedrafti ebangelwa yi-exhaust ikhutshwe kwisistim yokomisa ukuya kwisixhobo sokukhupha ivumba.
Imfuno yomthombo wobushushu imiselwe ukuba ibe ngumphunga, othatyathwe kuthungelwano lombhobho we-thermal coverage owakhiwe kufutshane nendawo yokuphunyezwa kweprojekthi. Iimeko zonikezelo lomphunga luxinzelelo lomphunga lwe-1.0MPa, ubushushu bomphunga we-180 ℃ kunye nonikezelo lomphunga lwe-2.5t / h.
2. Iiparamitha zezobugcisa zezixhobo eziphambili zenkqubo yokomisa ifilimu encinci
Ngokwemfuno yale projekthi, umthamo wonyango lwe-sludge yesethi enye yenkqubo yokomisa i-sludge izimisele ukuba yi-2.5t / h (ngokomxholo wokufuma we-80%), kunye nomthamo wokufuma kwe-sludge yi-35%. Umthamo wokucocwa kodaka lwemihla ngemihla kwesomisi sefilimu esibhityileyo singama-60 t/d (ngokomxholo wokufuma we-80%), umthamo olinganiselweyo wokuphuphuma komphunga wesomisi sefilimu esibhityileyo esinye yi-1.731 t/h, indawo yokutshintshiselana kobushushu kwindawo enye. isomisi ifilimu ebhityileyo yi-50 m2, kwaye umxholo wokufuma we-sludge inlet yi-80%, kwaye umxholo wokufuma we-sludge outlet yi-35%. Umthombo wobushushu wesomisi sefilimu esibhityileyo ngumphunga ogcweleyo, kwaye umgangatho wonikezelo lomphunga ungeniswa kumazwe angaphandle: ubushushu bomphunga yi-180 ℃, uxinzelelo lomphunga yi-1.0 MPa, ukusetyenziswa komphunga kwesomisi sefilimu esibhityileyo yi-2.33t / h, kunye inani loosomisi film obhityileyo 2, enye ukusetyenziswa enye.
Umphunga ogcweleyo we-180 ℃ uthuthwa usiwe kwisixhobo sokomisa umgama ngombhobho woxinzelelo, kwaye usetyenziswa njengomthombo wobushushu ukufudumeza ngokungathanga ngqo udaka oluphantse lube manzi. Amanzi akwi-semi-dry sludge aphinda abe ngumphunga kwi-linear dryer. Ngokwemfuno yangempela yemveliso ye-sludge (ukuqala kunye nokuyeka), i-sludge yokugqibela inokufikelela kwi-10% yomswakama womswakama kwaye uye kwi-cooler yemveliso.
Umthamo wokucutshungulwa kwesomisi somgca yi-0.769t / h(umswakama oyi-35%), ubushushu obulinganisiweyo yi-0.214t / h, indawo yokutshintshiselana ngobushushu yi-50 m2, umthamo wokufuma we-sludge inlet ye-linear dryer yi-35%, ukufuma. Isiqulatho sokuphuma kodaka yi-10%, umgangatho womphunga weparameters zokungena kwi-linear dryer: Iqondo lobushushu lomphunga yi-180 ℃, uxinzelelo lomphunga yi-1.0 MPa, ukusetyenziswa komphunga kwisixhobo somiso esinemigca enye yi-0.253 t/h, kwaye ubungakanani buxhotyiswe. ngeseti enye.
Uhlobo lwesixhobo se-condenser yegesi yokuthwala yi-condenser eyi-injection ngqo, kunye ne-air intake eyi-3 500 Nm3/h, iqondo lobushushu lerhasi yokungena eyi-95~110 ℃, iqondo lobushushu lerhasi eliyi-90~180 Nm3/h, kunye nerhasi yokuphuma. iqondo lobushushu 55 ℃.
Uhlobo lwesixhobo somthwali werhasi oyidrafti yedrafti fan luxinzelelo oluphezulu lwefan ye-centrifugal, umthamo omkhulu wokufunxa umoya yi-400 Nm3/h, uxinzelelo lomoya yi-4.8 kPa, iiparamitha ezibonakalayo zomxhasi wegesi ephakathi: iqondo lobushushu yi-45 ℃, ukufuma. yi-80% ~ 100% yomxube wegesi yevumba elimanzi, iseti enye yenkqubo yokomisa ixhotyiswe nge-1 iseti.
Umthamo wokucubungula we-cooler yemveliso ngu-1.8t / h, ukushisa kwe-sludge inlet yi-110 ° C, ukushisa kwe-sludge ku-≤45 ° C, indawo yokutshintsha ubushushu yi-20 m2, kwaye ubuninzi buyiyunithi ye-1.
3. Uhlalutyo lokusetyenziswa kwamandla ezoqoqosho ngexesha lokugunyaziswa kwesomisi esincinci sefilimu
Emva kwesiqingatha senyanga sokugunyaziswa okukodwa kunye nokuhanjiswa kodaka lwenkqubo yokumisa ifilimu ebhityileyo, iziphumo zezi zilandelayo.
Umthamo woqwalaselo loyilo lwesisomisi sefilimu esibhityileyo esinye kule projekthi yi-60 t/d. Okwangoku, i-avareji yonyango lwe-sludge emanzi ngexesha lokugunyaziswa yi-50 t / d (umxholo wokufuma ngu-79%), ofikelele kwi-83% ye-sludge eyilelwe isikali sonyango lwesiseko esimanzi kunye ne-87.5% ye-sludge eyilwe isikali sonyango esomileyo.
Umyinge wokunyakama kodaka lwe semi-dry sludge oluveliswa sisomisi sefilimu esibhityileyo yi-36%, kwaye isiqulatho sokufuma koludaka oluphantse lube manzi athunyelwa kumazwe angaphandle ngesisomisi somgca ngama-36%, olungqinelana nexabiso ekujoliswe kulo. imveliso yoyilo (35%).
Ilinganiswe ngemitha yangaphandle egcwele umphunga kwindawo yokusebenzela yokomisa inkunkuma, ukusetyenziswa komphunga ogcweleyo yi-25 t/d, kunye nethiyori eyonke yokusetyenziswa kobushushu bemihla ngemihla bobushushu obufihlakeleyo bomphunga womphunga yi-25 t×1 000×2 014.8 kJ/kg÷4.184 kJ =1.203 871 9×107 kcal/d. Umyinge wemihla ngemihla ewonke amanzi amdaka enkqubo yokomisa ngu (50 t × 0.79)-[50 t × (1-0.79)]÷(1-0.36)×1 000=23 875 kg/d, Emva koko ukusetyenziswa kobushushu kweyunithi inkqubo yokomisa udaka yi-1.203 871 9×107÷23 875=504 kcal/kg amanzi angumphunga; Ngenxa yokuba inkqubo yokomisa i-sludge ixhomekeke kutshintsho lwesiqulatho sokunyakama kodaka olumanzi, umgangatho womphunga wangaphandle, kunye neempawu zezixhobo zothutho lwemveliso yodaka olunesiqingatha esomileyo kwiimfuno zegranularity kunye nezinye izinto, kuyafuneka ukukhulisa ixabiso leenguqu ezahlukeneyo. kwixesha elizayo umsebenzi wovavanyo lwexesha elide, ukuze ushwankathele ezona meko zingcono zokusebenza kunye nesalathiso sokusetyenziswa kwamandla kwezoqoqosho kwenkqubo.