Udaka lwamanzi amalahle
I. IiPropati zoMzi kunye neMisebenzi
I-slurry yamanzi yamalahle yi-slurry eyenziwe ngamalahle, amanzi kunye nenani elincinci lezongezo zekhemikhali. Ngokwenjongo, i-slurry yamanzi amalahle yahlulwe ibe yi-high-concentration ye-coal-water slurry fuel kunye nodaka lwamanzi amalahle e-Texaco furnace gasification. Udaka lwamanzi amalahle lunokumpontshwa, lube ne-atom, lugcinwe kwaye lutshiswe luze lutshiswe kwindawo ezinzileyo. Malunga neetoni ezi-2 zodaka lwamanzi amalahle lungathatha indawo yetoni enye ye-oyile yamafutha.
I-slurry yamanzi yamalahle yokutshisa i-outperforms kwi-high-combution performance, ukonga amandla kunye neenzuzo zokusingqongileyo, enye inxalenye ebalulekileyo yeteknoloji yamalahle ecocekileyo. Udaka lwamanzi amalahle lunokuthuthwa kwimigama emide ngothutho lwemibhobho notyalo-mali oluphantsi kunye neendleko zokusebenza eziphantsi. Inokutshiswa ngokuthe ngqo ngaphandle kokuchithwa kwamanzi emva kokufika kwi-terminal, kwaye inkqubo yokugcina kunye nokuthutha ivalwe ngokupheleleyo.
Amanzi aya kubangela ilahleko yobushushu kwaye akakwazanga ukuvelisa ubushushu kwinkqubo yokutsha. Ngoko ke, ukuxinana kwamalahle kufuneka kufikelele kwinqanaba eliphezulu -- 65 ~ 70% ngokubanzi. Ukongezwa kweekhemikhali malunga ne-1%. Ilahleko yobushushu ebangelwa ngamanzi yenza malunga ne-4% yexabiso le-calorific yodaka lwamanzi amalahle. Amanzi yinto engenakuphepheka ekrwada kwi-gasification. Ngokwale mbono, ugxininiso lwamalahle lunokuthotywa luye kwi-62% ~ 65%, nto leyo enokubangela ukunyuka kweoksijini.
Ukuze kuququzelelwe ukutsha kunye nokuphendula kwegesi, i-slurry yamanzi yamalahle ineemfuno ezithile zokucolwa kwamalahle. Umda ophezulu we-particle ye-slurry yamalahle-amanzi e-fuel (ubungakanani besuntswana elinomlinganiselo wokupasa ongekho ngaphantsi kwe-98%) ngu-300μm, kunye nomxholo ongaphantsi kwe-74μm (200 mesh) ayikho ngaphantsi kwe-75%. Ukucoleka koludaka lwamanzi amalahle okwenziwa kwegesi kurhabaxa kancinane kunoludaka lwamanzi amalahle okuba sisibaso. Umda ophezulu wesayizi we-particle uvumelekile ukuba ufikelele kwi-1410μm (14 mesh), kunye nomxholo ongaphantsi kwe-74μm (200 mesh) yi-32% ukuya kwi-60%. Ukuze kwenziwe udaka lwamanzi amalahle lube lula ukupompa kunye ne-atomize, udaka lwamanzi amalahle lukwaneemfuno zokungamanzi.
Kwiqondo lobushushu begumbi kunye nesantya se-chear se-100s, i-viscosity ebonakalayo ifunwa ngokubanzi ukuba ingabi ngaphezulu kwe-1000-1500mPas. Udaka lwamanzi amalahle olusetyenziswa kuthutho lwemibhobho yomgama omde lufuna i-viscosity ebonakalayo engekho ngaphezulu kwe-800mPa·s phantsi kobushushu obuphantsi (elona bushushu lisezantsi lonyaka kwimibhobho engcwatywe phantsi komhlaba) kunye nesantya sokucheba se-10s-1. Ukongezelela, kuyafuneka kwakhona ukuba i-slurry yamanzi yamalahle ine-viscosity ephantsi xa ikwimeko ehambayo, ekulungele ukusetyenziswa; xa iyeka ukuhamba kwaye ikwimeko engatshintshiyo, ingabonisa i-viscosity ephezulu yokugcina lula.
Ukuzinza kwe-slurry yamalahle-amanzi ngexesha lokugcinwa kunye nokuthutha kubaluleke kakhulu, kuba i-slurry yamanzi yamalahle ngumxube wezigaba eziqinileyo kunye ne-liquid, kwaye kulula ukwahlula okuqinileyo kunye nolwelo, ngoko ke kufuneka ukuba akukho "imvula enzima" eveliswa ngexesha lokugcinwa kunye nokuthutha. Oko kubizwa ngokuba yi "hard precipitation" kubhekiselele kwimvula engenakubuyiselwa kwimeko yayo yangaphambili ngokushukumisa udaka lwamanzi amalahle. Ikhono le-slurry yamanzi amalahle ukugcina ukusebenza kokungavelisi imvula enzima ibizwa ngokuba "kuzinza" kodaka lwamanzi amalahle. Udaka lwamanzi amalahle olunozinzo olulambathayo luyakuchaphazela kakhulu imveliso nje ukuba imvula ifike ngexesha logcino nothutho.
II. Isishwankathelo seTekhnoloji yokuLungisa iTekhnoloji yokuLungisa i-Coal-Water slurry
Udaka lwamanzi amalahle lufuna ukugxininiswa kwamalahle aphezulu, ubungakanani bamasuntswana alungileyo, ulwelo olulungileyo, kunye nokuzinza okulungileyo ukuthintela imvula enzima. Kuya kuba nzima ukuhlangabezana nazo zonke ezi zakhiwo zingentla ngexesha elinye, kuba ezinye zazo zithintelwe ngokufanayo. Ngokomzekelo, ukwandisa ugxininiso kuya kubangela ukuba i-viscosity inyuke kwaye i-fluidity ibe mbi. I-fluidity elungileyo kunye ne-viscosity ephantsi iya kwenza ukuzinza kube nzima. Ngoko ke, kuyimfuneko ukubeka iliso ekugxininiseni ngexesha langempela. ILonnmeterimitha yoxinaniso ephathwayoinokuchaneka ukuya kuthi ga kwi-0.003 g / ml, enokufikelela kumlinganiselo ochanekileyo woxinaniso kunye nokulawula ngokuchanekileyo ubuninzi be-slurry.
1. Khetha ngokuchanekileyo ilahle elikrwada lokutsalwa
Ukongeza ekufezekiseni iimfuno zabasebenzisi abasezantsi, umgangatho wamalahle wokucofa kufuneka unike ingqwalaselo kwiimpawu zawo zokutsala - ubunzima bokucofa. Amanye amalahle kulula ukwenza i-high-concentration coal-water slurry phantsi kweemeko eziqhelekileyo. Kwamanye amalahle, kunzima okanye kufuna inkqubo entsonkothileyo yokucofa kunye neendleko eziphezulu ukwenza i-high-concentration ye-coal-water slurry. Iipropathi ze-pulping zemathiriyeli ekrwada yokutsala i-pulping zinempembelelo enkulu kutyalo-mali, iindleko zemveliso kunye nomgangatho woludaka lwamanzi amalahle eplanti yokutsala amanzi. Ngoko ke, umthetho weepropati zokutshiza amalahle kufuneka uphathwe kakuhle, kwaye amalahle akrwada okucoca kufuneka akhethwe ngokweemfuno zangempela kunye nemigaqo yobuchule bobuchule kunye nengqiqo yezoqoqosho.
2. Ukuhlelwa
Udaka lwamalahle-amanzi alufuni kuphela ubungakanani bamalahle ukuba bufikelele kwi-fineness echaziweyo, kodwa kwakhona kufuna ukusabalalisa ubungakanani besuntswana elungileyo, ukuze amasuntswana amalahle obungakanani ahlukeneyo azalise omnye komnye, anciphise izithuba phakathi kwamasuntswana amalahle, kwaye afezekise "ubuchule bokupakisha" obuphezulu. Izikhewu ezimbalwa zinokunciphisa umthamo wamanzi asetyenzisiweyo, kwaye kulula ukwenza udaka lwamanzi amalahle oluphezulu. Le teknoloji ngamanye amaxesha ibizwa ngokuba yi "grading".
3. Inkqubo yokutsala kunye nezixhobo
Ngaphantsi kweempawu zobungakanani bamalahle ekrwada kunye neemeko zokugaywa, indlela yokwenza ukuhanjiswa kobungakanani besuntswana lemveliso yokugqibela yodaka lwamalahle-amanzi kufezekiseke "ukusebenza kakuhle kokupakisha" kufuna ukhetho olufanelekileyo lwezixhobo zokugaya kunye nenkqubo yokucofa.
4. Ukukhetha izongezo zokuSebenza eziMatanisa
Ukuze wenze i-slurry yamalahle-amanzi ifikelele ekugxininiseni okuphezulu, i-viscosity ephantsi, kunye ne-rheology enhle kunye nokuzinza, ixabiso elincinci leekhemikhali, ezibizwa ngokuba "zizongezo", kufuneka zisetyenziswe. Iimolekyuli zesenzo sokongeza kwi-interface phakathi kweengqungquthela zamalahle kunye namanzi, anokunciphisa i-viscosity, ukuphucula ukuchithwa kwamalahle amalahle emanzini, kunye nokuphucula ukuzinza kwamanzi amalahle e-slurry. Isixa sezongezo sivame ukuba yi-0.5% ukuya kwi-1% yemali yamalahle. Kukho iintlobo ezininzi zezongezo, kwaye ifomula ayilungiswanga kwaye kufuneka imiselwe ngophando lovavanyo.
Ixesha lokuposa: Feb-13-2025
