Chigayo cha malasha ndi gawo lofunikira kwambiri pakupunthira mphamvu komanso chida chofunikira chothandizira magetsi pamagetsi. Ntchito yake yayikulu ndikuthyola ndikupera malasha kukhala malasha opukutidwa kuti apereke zida zowotchera, kasinthidwe kake kumakhudza mwachindunji chitetezo ndi chuma cha unit. Chifukwa kusinthika kwa mphero zosiyanasiyana zamakala kumitundu yosiyanasiyana ya malasha ndikosiyana kwambiri, kuphatikizidwa ndi momwe zinthu zilili pakugawika kosagwirizana kwa zinthu zamalasha ku China, mtundu wazinthu zamakala udzakhudza mwachindunji chuma chadongosolo lopukutira. Ndiye, kodi kusankha zida zophera malasha kuyenera kusankhidwa bwanji?Makina a HCMmonga wopanga mphero ya malasha, adzayambitsa maziko a kusankha mphero ya malasha. Pali mitundu yambiri ya mphero ya malasha, malingana ndi liwiro la magawo ogwira ntchito a mphero ya malasha osankhidwa gulu akhoza kugawidwa m'magulu atatu, omwe ndi: mphero ya malasha otsika kwambiri, mphero ya malasha yapakati-liwiro ndi mphero yamoto yothamanga kwambiri. Zotsatirazi zikuwonetsa kusankha kwa zida zitatu zogaya malasha motsatana.
Kusankha zida za malasha 1: mphero yamalasha yothamanga kwambiri
Choyimira choyimira cha low-speed malasha mphero ndi mpira mphero. Mfundo yogwirira ntchito ndi: injini yamphamvu kwambiri kudzera mu bokosi la gear kuti iyendetse kuzungulira kwa mbale iyi yolemera, mpira wachitsulo m'njira yosavuta umazunguliridwa kufika pamtunda wina kenako umagwera pansi, kupyolera mu mphamvu ya mpira wachitsulo pa malasha ndi pakati pa mpira wachitsulo, pakati pa mpira wachitsulo ndi mbale ya alonda, malasha amagwa. The over-coarse osayenera malasha olekanitsidwa pamene akuyenda mu coarse ufa olekanitsa kumbuyo kwa mpira mphero, ndiyeno kutumizidwa ku mbale zozungulira kuchokera kubwerera ufa chubu kuti kachiwiri akupera. Kuphatikiza pa kunyamula ufa wa malasha, mpweya wotentha umagwiranso ntchito yowumitsa malasha. Choncho, mpweya wotentha umatchedwanso desiccant mu dongosolo la ufa. Mankhwalawa ali ndi makhalidwe a nthawi yayitali yogwiritsira ntchito nthawi yayitali, kukonza kosavuta, kutulutsa kokhazikika ndi kukonza bwino, kusungirako kwakukulu, kuyankha mofulumira, kusinthasintha kwakukulu kwa ntchito, chiŵerengero chochepa cha mpweya wa malasha, kupulumutsa makina osungira malasha, osiyanasiyana akupera malasha ndi zina zotero. Amagwiritsidwa ntchito makamaka ngati malasha olimba komanso olimba kwambiri, makamaka ngati malasha okhala ndi mphamvu zowola kwambiri komanso zinthu zowononga kwambiri. Komabe, mphero yothamanga kwambiri imeneyi ndi yochuluka, imakhala ndi zitsulo zambiri, imakhala ndi malo ambiri, ndipo imakhala ndi ndalama zambiri zoyamba. Kotero mphero ya mpira ndi yoyenera kugwira ntchito yodzaza katundu.
Zida zopangira malasha mtundu 2:mphero yamalasha yothamanga kwambiri
Mphero yamalasha yapakatikati imadziwikanso kuti mphero yamalasha yoyima, yomwe imadziwika ndi magawo opera omwe amapangidwa ndi magulu awiri akuyenda kwachibale kwa thupi logaya. Malasha amafinyidwa ndi kudulidwa pakati pa malo a matupi awiri opera ndikuphwanyidwa. Panthawi imodzimodziyo, mpweya wotentha wodutsa m'mphero umawumitsa malasha ndipo umatumiza malasha ophwanyidwa ku olekanitsa kumtunda kwa mphero. Pambuyo kulekana, ndi pulverized malasha ena tinthu kukula amachotsedwa mphero ndi otaya mpweya, ndi coarse pulverized malasha anabwerera kudera akupera kwa regrinding. Makina opangira malasha othamanga ali ndi maubwino a zida zophatikizika, chopondapo pang'ono, kupulumutsa mphamvu (pafupifupi 50% ~ 75% ya mphero ya mpira), phokoso lochepa, kuwala komanso kuwongolera magwiridwe antchito. Koma si oyenera kupera malasha olimba.
Kusankha zida za malasha 3: mphero yamalasha othamanga kwambiri
Liwiro la mphero yamakala othamanga kwambiri ndi 500 ~ 1500 r/min, lomwe limapangidwa makamaka ndi rotor yothamanga kwambiri komanso chipolopolo chopera. Common fan akupera ndi nyundo akupera ndi zina zotero. Pamphero, malasha amaphwanyidwa chifukwa cha kugunda kwamphamvu kwambiri ndi chigoba chopera ndi kugunda kwa malasha. Mtundu wa malasha mphero ndi pulverized malasha olekanitsa kupanga lonse, dongosolo ndi losavuta, yaying'ono, ndalama koyamba ndi otsika, makamaka oyenera akupera mkulu chinyezi lignite ndi mkulu kosakhazikika okhutira, zosavuta pogaya bituminous malasha. Komabe, chifukwa mbale zimakhudza mwachindunji kukokoloka ndi kuvala ndi otaya mpweya, moyo wake utumiki zambiri okha za 1000h pamene akupera lignite, m'malo pafupipafupi, ndi madzi opezeka pansi malasha sayenera kukhala okwera kwambiri, amene nthawi zambiri ntchito boilers mwachindunji kuwomberedwa mu zomera mphamvu, ndipo sayenera kugwiritsidwa ntchito pa kuphulika ng'anjo jekeseni workshops.
The pamwamba mitundu itatu ya malasha akupera zida kusankha ndi ubwino ndi kuipa, posankha zida malasha akupera, m'pofunika kuganizira kusankha wonse wa pulverizing dongosolo. Dongosolo la ufa litha kugawidwa m'magulu awiri: mtundu wakuwomba mwachindunji ndi mtundu wapakati wosungira (wotchedwa mtundu wosungira). M'njira yowomba molunjika, malasha amakankhidwa kukhala malasha ophwanyidwa ndi mphero yamalasha ndiyeno amawomberedwa m'ng'anjoyo kuti ayake. M'makina osungiramo pulverization, malasha ophwanyidwa amayamba kusungidwa mu nkhokwe yamalasha, ndiyeno malinga ndi zosowa za katundu wotenthetsera, malasha ophwanyidwa amatumizidwa kuchokera ku bin ya malasha kupita ku ng'anjo kuti awotchedwe ndi pulverizer. Machitidwe osiyanasiyana opukutira ndi oyeneranso kusankha mitundu yosiyanasiyana ya zida zopangira malasha ndi malasha. Malinga ndi pulverization system, tafotokoza mwachidule maziko awa pakusankha mphero ya malasha:
(1) Chitsulo mpira mphero pakati yosungirako bin mtundu otentha mpweya ufa dongosolo: angagwiritsidwe ntchito anthracite (Vsr<9%) ndi kuvala mu amphamvu pamwamba pa malasha.
(2) Mpira mphero yapakati yosungirako mtundu wothira mpweya woperekera ufa: makamaka umagwiritsidwa ntchito ngati malasha ovala mwamphamvu komanso osasunthika (Var-19% ~ 27%) malasha a bituminous.
(3) Pawiri-pawiri-kunja zitsulo mpira mphero mwachindunji kuwomba dongosolo 22-241: kwa sing'anga-mkulu wosakhazikika (Vs.7-27% ~ 40%) malasha bituminous.
(4) Makina opangira malasha othamanga kwambiri: oyenera pogaya malasha a bituminous okhala ndi zinthu zambiri zosakhazikika (Vanr-27% ~ 40%), chinyezi chambiri (chinyezi chakunja Mp≤15%) ndi kuvala mwamphamvu, komanso kutayika kwabodza kwamalasha pansi pamphamvu, kuyaka kwa malasha kumatha kuyaka, ndikukwaniritsa zofunikira za malasha.
(5) Fan mphero mwachindunji kuwomba dongosolo: oyenera lignite kukokoloka kuvala index Ke≤3.5 ndi 50 MW ndi pansi bituminous malasha unit boiler
Posankha zida mphero malasha, ziyenera kuganiziridwa molingana ndi makhalidwe kuyaka, kuvala ndi kuphulika makhalidwe malasha, makhalidwe pulverization wa malasha mphero ndi zofunika za pulverized malasha fineness, pamodzi ndi kapangidwe ng'anjo ndi dongosolo burner wa kukatentha, ndi kuganizira ndalama, yokonza ndi ntchito mlingo wa chomera mphamvu ndi mbali zothandizira, kotunga cotsalira ndi zinthu zina zotsalira, copereka cotsalira ndi zinthu zina. Pofuna kukwaniritsa machesi wololera pakati pulverizing dongosolo, kuyaka chipangizo ndi kukatentha ng'anjo, kuonetsetsa otetezeka ndi chuma ntchito unit. HCM Machinery ndi apadera kupanga opanga sing'anga-liwiro mphero malasha, timapanga HLM mndandanda wa sing'anga-liwiro malasha mphero ali ndi makhalidwe awa:
(1) Kugwiritsa ntchito lalikulu m'mimba mwake wodzigudubuza ndi litayamba, anagubuduza kukana ndi yaing'ono, yaiwisi malasha polowera zinthu zabwino, motero kuwongolera mphamvu kupanga, kuchepetsa mowa mphamvu.
(2) ntchito yochepetsera ndi yabwino, yotetezeka komanso yodalirika; Phokoso lotsika komanso kugwedezeka; Ntchito yosindikiza ndi yabwino kuonetsetsa kuti ufa wa malasha sulowa m'makina onse ozungulira.
(3) Oyenera pogaya malasha olimba, yunifolomu akupera mphamvu, mkulu akupera dzuwa. Ntchito yokhazikika komanso yodalirika.
(4) Kugaya kwa MPS kulibe m'zigawo zosagwira ntchito, ndipo kuvala kwachitsulo kumakhala kochepa. Ngati muli ndi vuto la kusankha zida za malasha, landirani kuyankhulanaMakina a HCM for the basis of coal mill selection, contact information:hcmkt@hcmilling.com
Nthawi yotumiza: Jan-19-2024
