Umatshini wokugaya amalahle yinxalenye ebalulekileyo yenkqubo yokucola kunye nezixhobo zamandla ezincedisayo ezibalulekileyo kwisikhululo samandla. Umsebenzi wawo ophambili kukuqhekeza nokucola amalahle abe ngamalahle acoliweyo ukuze kubonelelwe ngezixhobo zebhoyila, ulwakhiwo lwawo luya kuchaphazela ngqo ukhuseleko kunye noqoqosho lweyunithi. Ngenxa yokuba ukulungelelaniswa kwezixhobo ezahlukeneyo zokugaya amalahle kwiintlobo ezahlukeneyo zamalahle kwahlukile kakhulu, xa kuthelekiswa nemeko yokwenyani yokusasazwa okungalinganiyo kweemveliso zamalahle eTshayina, umgangatho weemveliso zamalahle uya kuchaphazela ngqo uqoqosho lwenkqubo yokucola. Ngoko ke, kufuneka kukhethwe njani ukukhethwa kwezixhobo zokugaya amalahle?Oomatshini beHCMNjengomvelisi we-coal mill, uza kwazisa isiseko sokukhethwa kwe-coal mill. Kukho iintlobo ezininzi ze-coal mill, ngokwesantya sokusila iindawo zokusebenza zodidi lokukhetha izixhobo ze-coal mill zinokwahlulwa zibe ziintlobo ezintathu, ezizezi: i-low-speed coal mill, i-medium-speed coal mill kunye ne-high-speed coal mill. Oku kulandelayo kuza kwazisa ukukhethwa kwezi zixhobo zokugaya amalahle zintathu ngokulandelelana.
Ukukhethwa kwezixhobo zomatshini wokugaya amalahle 1: umshini wokugaya amalahle ohamba ngesantya esiphantsi
Ummeli oqhelekileyo we-coal mill ekhawulezayo yi-ball mill. Umgaqo osebenzayo ngulo: i-motor enamandla aphezulu edlula kwi-gearbox ukuze iqhube olu jikelezo lwepleyiti olujikelezayo olunzima, ibhola yentsimbi kwi-simple ijikeleziswa ukuya kubude obuthile ize iwe phantsi, ngokusebenzisa impembelelo yebhola yentsimbi kwi-coal naphakathi kwebhola yentsimbi, phakathi kwebhola yentsimbi kunye ne-guard plate, ilahle liyagaywa. Ilahle elirhabaxa kakhulu elingafanelekiyo liyahlulwa xa lihamba nge-coarse powder separator ngasemva kwe-ball mill, lize lithunyelwe kwi-circular plate ukusuka kwi-return powder tube ukuze ligaywe kwakhona. Ukongeza ekuthuthweni kwe-coal powder, umoya oshushu ukwadlala indima yokomisa amalahle. Ke ngoko, umoya oshushu ukwabizwa ngokuba yi-desiccant kwinkqubo ye-powder. Imveliso ineempawu zexesha elide lokusebenza ngokuqhubekayo, ukugcinwa okulula, imveliso ezinzileyo kunye nobukhulu, amandla okugcina amakhulu, impendulo ekhawulezayo, ukuguquguquka okukhulu kokusebenza, umlinganiselo ophantsi womoya-amalahle, umatshini wokonga amalahle ongezelelweyo, uluhlu olubanzi lwamalahle okugaya njalo njalo. Isetyenziswa kakhulu kumalahle aqinileyo naphakathi, ngakumbi kumalahle anomxholo ophezulu wokugungqa kunye nepropathi enamandla yokurhawuzelela. Nangona kunjalo, le matshini yokutshiza ibhola enesantya esiphantsi inkulu kakhulu, isetyenziswa kakhulu zisinyithi, ithatha umhlaba omninzi, kwaye inotyalo-mali olukhulu lokuqala. Ngoko ke le matshini yokutshiza ibhola ifanelekile ukuba isetyenziswe ngokupheleleyo.
Uhlobo lwesi-2 lwezixhobo zomatshini wamalahle:umzi-mveliso wamalahle ohamba ngesantya esiphakathi
I-medium speed coal mill ikwaziwa ngokuba yi-vertical coal mill, ebonakaliswa ziindawo zokusila ezakhiwe ngamaqela amabini okunyakaza komzimba wokusila. Ilahle liyacinezelwa lize licolwe phakathi kwemiphezulu yemizimba emibini yokusila kwaye licolwe. Kwangaxeshanye, umoya oshushu odlula kwi-mill uyomisa ilahle uze uthumele ilahle elicoliweyo kwi-separator kwindawo ephezulu yendawo yokusila. Emva kokuhlukana, ilahle elicoliweyo lobukhulu obuthile be-particle liyakhutshwa kwi-mill ngokuhamba komoya, kwaye ilahle elicoliweyo elicoliweyo libuyiselwa kwindawo yokusila ukuze liphinde licolwe. I-medium speed coal mill inezibonelelo zezixhobo ezincinci, indawo encinci, ukonga ukusetyenziswa kwamandla (malunga ne-50% ~ 75% ye-ball mill), ingxolo ephantsi, ukukhanya kunye nolawulo lokusebenza olunovelwano. Kodwa ayifanelekanga ukusila ilahle eliqinileyo.
Ukukhethwa kwezixhobo zomatshini wamalahle 3: umshini wamalahle okhawulezayo
Isantya somatshini wokugaya amalahle ohamba ngesantya esiphezulu yi-500 ~ 1500 r/min, esakhiwe kakhulu yi-rotor ekhawulezayo kunye negobolondo lokugaya. Ukugaya ifeni eqhelekileyo kunye nokusila ngehammer njalo njalo. Kwimatshini, amalahle atyunyuzwa kukungqubana phakathi kwempembelelo yesantya esiphezulu kunye negobolondo lokugaya kunye nokungqubana phakathi kwamalahle. Olu hlobo lomatshini wokugaya amalahle kunye nokwahlula amalahle acoliweyo zenza yonke into, isakhiwo silula, sincinci, utyalo-mali lokuqala luphantsi, lufanelekile ngakumbi ekusikeni i-lignite emanzi aphezulu kunye nomxholo oguquguqukayo ophezulu, kulula ukugaya amalahle e-bituminous. Nangona kunjalo, ngenxa yokuba ipleyiti yempembelelo ikhukuliswe ngokuthe ngqo kwaye igugile kukuhamba komoya, ubomi bayo benkonzo ngokubanzi bumalunga ne-1000h kuphela xa kugaywa i-lignite, ukutshintshwa rhoqo, kwaye umxholo wamanzi wamalahle omhlaba akufuneki ube phezulu kakhulu, oqhele ukusetyenziswa kwiibhoyila ezivuthuzwa ngqo kwizityalo zamandla, kwaye akufuneki kusetyenziswe kwiindawo zokusebenzela zokujova i-blast furnace.
Ezi ntlobo zintathu zingasentla zokukhetha izixhobo zokugaya amalahle zinezibonelelo kunye neengxaki, ekukhetheni izixhobo zokugaya amalahle, kuyimfuneko ukuqwalasela ukhetho olupheleleyo lwenkqubo yokucola. Inkqubo yomgubo inokwahlulwa ibe ziindidi ezimbini: uhlobo lokuvuthela ngqo kunye nohlobo lokugcina oluphakathi (olubizwa ngokuba luhlobo lokugcina). Kwinkqubo yokucola ngqo, amalahle acolwa abe ngamalahle acoliweyo yi-coal mill aze avuthelwe ngqo kwi-furnace ukuze atshiswe. Kwinkqubo yokugcina yokucola, amalahle acoliweyo agcinwa kuqala kwi-coal mill ecoliweyo, aze emva koko ngokweemfuno zomthwalo webhoyila, amalahle acoliweyo athunyelwa kwi-coal mill ecoliweyo aye kwi-furnace ukuze atshiswe yi-pulverizer. Iinkqubo ezahlukeneyo zokucola zikwafanelekile kwiintlobo ezahlukeneyo zokukhetha izixhobo zokugaya amalahle kunye namalahle. Ngokwenkqubo yokucola, sishwankathele isiseko esilandelayo sokukhetha i-coal mill:
(1) Isixhobo sokugaya ibhola sentsimbi kwisixhobo sokugcina esiphakathi sebhini yokugcina umoya oshushu: singasetyenziselwa i-anthracite (Vsr<9%) kwaye siguge kwindawo enamandla ngaphezu kwamalahle.
(2) Inkqubo yokuhambisa umgubo wegesi ephumayo kwindawo yokugcina ibhola: isetyenziselwa kakhulu amalahle agugileyo kwaye agugile kakhulu (Var-19% ~ 27%).
(3) Inkqubo yokuvuthela ngqo ye-steel ball mill ene-double-out 22-241: ye-variable ephakathi nephezulu (Vs.7-27% ~ 40%) ye-bituminous coal.
(4) Inkqubo yokuvuthela ngqo ye-coal mill enesantya esiphakathi: ifanelekile ekugayweni kwamalahle e-bituminous anomxholo ophezulu wokugungqa (i-Vanr-27% ~ 40%), umxholo ophezulu wokufuma (ukufuma kwangaphandle Mp≤15%) kunye nokugungqa okunamandla, kunye nokulahleka okungeyonyani kwamalahle ngaphantsi kwamandla aqinileyo, ukusebenza kokutsha kwamalahle kuyatsha, kwaye ubuncinci bamalahle obucoliweyo buhlangabezana neemfuno ze-coal mill.
(5) Inkqubo yokuvuthela ngqo ye-fan mill: ifanelekile kwi-lignite erosion wear index Ke≤3.5 kunye ne-50 MW kunye ne-bituminous coal unit boiler engaphantsi
Ekukhetheni izixhobo zokugaya amalahle, kufuneka kuqwalaselwe ngokweempawu zokutsha, iimpawu zokuguguleka kunye nokuqhuma kwamalahle, iimpawu zokucolwa kwe-coal mill kunye neemfuno zokucoca amalahle acoliweyo, kunye nesakhiwo sesithando kunye nesakhiwo sokutshisa ibhoyila, kwaye kuqwalaselwe utyalo-mali, inqanaba lokugcina kunye nokusebenza kwesityalo samandla kunye nezixhobo ezixhasayo, ukubonelela ngezinto ezingasetyenziswa, umthombo wamalahle kunye nenkunkuma yamalahle kunye nezinye izinto. Ukuze kufezekiswe ukuhambelana okufanelekileyo phakathi kwenkqubo yokucolwa, isixhobo sokutsha kunye nesithando sebhoyila, ukuqinisekisa ukusebenza okukhuselekileyo noqoqosho kweyunithi. I-HCM Machinery igxile ekuveliseni abavelisi be-coal mill yesantya esiphakathi, sivelisa uthotho lwe-HLM lwe-coal mill yesantya esiphakathi eneempawu ezilandelayo:
(1) Ukusetyenziswa kwe-roller enkulu kunye nediski, ukumelana nokuqengqeleka kuncinci, iimeko zokungena kwamalahle aluhlaza zilungile, ngaloo ndlela kuphucula amandla emveliso, kunciphisa ukusetyenziswa kwamandla.
(2) ukusebenza kwesinciphisi kulungile, kukhuselekile kwaye kuthembekile; Ingxolo ephantsi yokusebenza kunye nokungcangcazela; Ukusebenza kokutywina kulungile ukuqinisekisa ukuba umgubo wamalahle awungeni kuzo zonke iindawo zoomatshini ezijikelezayo.
(3) Ifanelekile ekugayeni amalahle aqinileyo, amandla okugayiwa afanayo, ukusebenza kakuhle kokugayiwa. Ukusebenza okuzinzileyo nokuthembekileyo.
(4) Ukusila kwe-MPS akukho kwiindawo ezingasebenzi kakuhle zokungqubana, kwaye ukuguguleka kwesinyithi kuncinci. Ukuba unengxaki yokukhetha izixhobo zomatshini wamalahle, wamkelekile ukuqhagamshelana nathi.Oomatshini beHCM for the basis of coal mill selection, contact information:hcmkt@hcmilling.com
Ixesha leposi: Jan-19-2024
