Umshini wokugaya amalahle uyingxenye ebalulekile yesistimu yokugaya futhi uyimishini yamandla esizayo ebalulekile esitshalweni sikagesi. Umsebenzi wawo oyinhloko ukuphula nokugaya amalahle abe amalahle aqoshiwe ukuze kuhlinzekwe imishini yebhoyila, ukwakheka kwawo kuzothinta ngqo ukuphepha kanye nomnotho weyunithi. Ngenxa yokuthi ukuzivumelanisa kwemishini yokugaya amalahle ehlukene nezinhlobo ezahlukene zamalahle kuhluke kakhulu, kuhlanganiswe nesimo sangempela sokusatshalaliswa okungalingani kwemikhiqizo yamalahle eShayina, ikhwalithi yemikhiqizo yamalahle izothinta ngqo umnotho wesistimu yokugaya amalahle. Ngakho-ke, kufanele kukhethwe kanjani ukukhethwa kwemishini yokugaya amalahle?Imishini ye-HCMNjengomkhiqizi womshini wokugaya amalahle, uzokwethula isisekelo sokukhethwa komshini wokugaya amalahle. Kunezinhlobo eziningi zomshini wokugaya amalahle, ngokwejubane lokugaya izingxenye zokusebenza zesigaba sokukhetha imishini yokugaya amalahle zingahlukaniswa zibe izinhlobo ezintathu, okungukuthi: umshini wokugaya amalahle onesivinini esiphansi, umshini wokugaya amalahle onesivinini esiphakathi kanye nomshini wokugaya amalahle onesivinini esikhulu. Okulandelayo kuzokwethula ukukhethwa kwale mishini yokugaya amalahle emithathu ngokulandelana.
Ukukhethwa kwemishini yokugaya amalahle 1: umshini wokugaya amalahle onesivinini esiphansi
Ummeleli ojwayelekile womshini wokugaya amalahle onesivinini esiphansi yi-ball mill. Umgomo osebenzayo uthi: injini enamandla amakhulu idlula ku-gearbox ukuze ishayele lokhu kuzungeza kwepuleti eliyindilinga elisindayo, ibhola lensimbi elisesimeni esilula lijikeleziswa lifike ekuphakameni okuthile bese liwa phansi, ngomthelela webhola lensimbi kumalahle naphakathi kwebhola lensimbi, phakathi kwebhola lensimbi nepuleti lokuvikela, amalahle ayagaywa. Amalahle aqinile kakhulu angafaneleki ahlukaniswa lapho egeleza ngesihlukanisi sempuphu esiqinile ngemuva komshini wokugaya ibhola, bese ethunyelwa epuletini eliyindilinga lisuka eshubhu lempuphu yokubuyisa ukuze ligaywe kabusha. Ngaphezu kokuthutha impuphu yamalahle, umoya oshisayo nawo udlala indima yokomisa amalahle. Ngakho-ke, umoya oshisayo ubizwa nangokuthi i-desiccant ohlelweni lwempuphu. Umkhiqizo unezici zesikhathi eside sokusebenza esiqhubekayo, ukulungiswa okulula, umkhiqizo ozinzile kanye nobuncane, umthamo omkhulu wokugcina, impendulo esheshayo, ukuguquguquka okukhulu kokusebenza, isilinganiso esiphansi samalahle omoya, umshini wokonga amalahle ongeziwe, ububanzi obukhulu bamalahle okugaya nokunye. Isetshenziswa kakhulu kumalahle aqinile naphakathi, ikakhulukazi amalahle anokuqukethwe okuphezulu okuguquguqukayo kanye nempahla enamandla yokukhuhla. Kodwa-ke, lo mshini wokugaya ibhola onesivinini esiphansi mkhulu, usetshenziswa kakhulu yinsimbi, uthatha indawo eningi, futhi utshale imali enkulu ekuqaleni. Ngakho-ke umshini wokugaya ibhola ufanelekile ukusebenza ngokugcwele.
Uhlobo 2 lwemishini yokugaya amalahle:umshini wamalahle osheshayo ophakathi nendawo
I-medium speed coal mill yaziwa nangokuthi i-vertical coal mill, ebonakala ngezingxenye zokugaya ezakhiwe amaqembu amabili okunyakaza okuhlobene komzimba wokugaya. Amalahle ayacindezelwa bese egaywa phakathi kobuso bemizimba emibili yokugaya bese echotshozwa. Ngesikhathi esifanayo, umoya oshisayo odlula emshinini wokugaya womisa amalahle bese uthumela amalahle acoliwe kumshini wokuhlukanisa engxenyeni engenhla yendawo yokugaya. Ngemva kokuhlukaniswa, amalahle acoliwe anobukhulu obuthile bezinhlayiya ayakhishwa emshinini wokugaya ngokugeleza komoya, bese amalahle acoliwe aqotshiwe abuyiselwa endaweni yokugaya ukuze agaywe kabusha. I-medium speed coal mill inezinzuzo zemishini emincane, indawo encane, ukonga ukusetshenziswa kwamandla (cishe u-50% ~ 75% we-ball mill), umsindo ophansi, ukukhanya nokulawula ukusebenza okubucayi. Kodwa akufaneleki ukugaya amalahle aqinile.
Ukukhethwa kwemishini yokugaya amalahle 3: umshini wokugaya amalahle osheshayo
Ijubane lomshini wokugaya amalahle osheshayo lingu-500 ~ 1500 r/min, okwakhiwa kakhulu yi-rotor eshesha kakhulu kanye negobolondo lokugaya. Ukugaya abalandeli okuvamile kanye nokugaya ngesando njalo njalo. Emshinini wokugaya, amalahle achotshozwa ukushayisana phakathi komthelela wejubane eliphezulu kanye negobolondo lokugaya kanye nokushayisana phakathi kwamalahle. Lolu hlobo lomshini wokugaya amalahle kanye nesihlukanisi samalahle esicoliwe sakha konke, isakhiwo silula, sincane, ukutshalwa kwezimali kokuqala kuphansi, kufanelekile kakhulu ukugaya i-lignite enomswakama ophezulu kanye nokuqukethwe okuphezulu okuguquguqukayo, kulula ukugaya amalahle e-bituminous. Kodwa-ke, ngoba ipuleti lokushaya liguguleka ngqo futhi liguguleka ukugeleza komoya, impilo yalo yenkonzo ngokuvamile ingamahora ayi-1000 kuphela lapho kugaywa i-lignite, ukushintshwa njalo, kanye nokuqukethwe kwamanzi kwamalahle omhlaba akufanele kube phezulu kakhulu, okuvame ukusetshenziselwa ama-boiler avuthelwe ngqo ezitshalweni zamandla, futhi akufanele kusetshenziselwe ama-workshop okujova isithando somlilo.
Izinhlobo ezintathu ezingenhla zokukhetha imishini yokugaya amalahle zinezinzuzo kanye nokungalungi, ekukhetheni imishini yokugaya amalahle, kubalulekile ukucabangela ukukhethwa okuphelele kohlelo lokugaya. Uhlelo lwempuphu lungahlukaniswa ngezigaba ezimbili: uhlobo lokugaya ngqo kanye nohlobo lokugcina oluphakathi (olubizwa ngokuthi uhlobo lokugcina). Ohlelweni lokugaya ngqo, amalahle agaywa abe amalahle agxotshiwe yi-coal mill bese evuthelwa ngqo esithandweni sokushisa. Ohlelweni lokugaya lokugcina, amalahle agxotshiwe aqale agcinwe ebhanini lamalahle agxotshiwe, bese ngokwezidingo zomthwalo webhoyila, amalahle agxotshiwe athunyelwa esuka ebhanini lamalahle agxotshiwe aye esithandweni sokushisa yi-pulverizer. Izinhlelo ezahlukene zokugaya nazo zifanelekile ezinhlotsheni ezahlukene zokukhetha imishini yokugaya amalahle namalahle. Ngokusho kohlelo lokugaya, sifingqe isisekelo esilandelayo sokukhetha imishini yokugaya amalahle:
(1) Insimbi egaya ibhola ohlelweni lwempuphu yomoya oshisayo olufana nebhokisi lokugcina eliphakathi: ingasetshenziswa kwi-anthracite (Vsr<9%) kanye nokuguguleka endaweni enamandla ngaphezu kwamalahle.
(2) Uhlelo lokulethwa kwempuphu yegesi yokukhipha ugesi oluphakathi nendawo yokugcina izimpahla: lusetshenziswa kakhulu kumalahle anokuguga okunamandla kanye namalahle aguquguqukayo aphakathi nendawo (Var-19% ~ 27%).
(3) Uhlelo lokugaya ibhola lensimbi oluphuma kabili ngaphakathi 22-241: lwelahle eliguquguqukayo eliphakathi nendawo (Vs.7-27% ~ 40%) le-bituminous.
(4) Uhlelo lokugaya amalahle olusebenzisa isivinini esiphakathi: lufanelekela ukugaya amalahle e-bituminous anokuqukethwe okuphezulu okuguquguqukayo (i-Vanr-27% ~ 40%), okuqukethwe okuphezulu komswakama (umswakama wangaphandle Mp≤15%) kanye nokuguguleka okunamandla, kanye nokulahlekelwa ngamalahle okungewona ngaphansi kwamandla aqinile, ukusebenza kokushisa kwamalahle kuyavutha, futhi ubuncane bamalahle obucoliwe buhlangabezana nezidingo zomshini wokugaya amalahle.
(5) Uhlelo lokushaya ngqo lwe-fan mill: lufanelekela inkomba yokuguguleka kokuguguleka kwe-lignite engu-Ke≤3.5 kanye no-50 MW kanye nebhoyila yamalahle engaphansi kwe-bituminous
Ekukhetheni imishini yokugaya amalahle, kufanele icatshangelwe ngokwezimpawu zokusha, izici zokuguguleka nokuqhuma kwamalahle, izici zokugaywa kwemishini yokugaya amalahle kanye nezidingo zokuqina kwamalahle acoliwe, kuhlanganiswe nesakhiwo sesithando kanye nesakhiwo sesishisi sebhoyila, futhi kucatshangelwe ukutshalwa kwezimali, izinga lokugcinwa nokusebenza kwesitshalo samandla kanye nemishini esekelayo, ukuhlinzekwa kwezingxenye ezisele, umthombo wamalahle kanye nemfucumfucu yamalahle nezinye izici. Ukuze kufezwe ukulingana okufanelekile phakathi kohlelo lokugaya, idivayisi yokushisa kanye nesithando sebhoyila, ukuqinisekisa ukusebenza okuphephile nokonga kweyunithi. Imishini ye-HCM ikhethekile ekukhiqizweni kwabakhiqizi bokugaya amalahle abasebenzisa isivinini esiphakathi, sikhiqiza uchungechunge lwe-HLM lokugaya amalahle abasebenzisa isivinini esiphakathi olunezici ezilandelayo:
(1) Ukusetshenziswa kwe-roller enkulu kanye nediski, ukumelana nokugoqa kuncane, izimo zokungena kwamalahle ezingavuthiwe zinhle, ngaleyo ndlela kuthuthukisa amandla okukhiqiza, kunciphisa ukusetshenziswa kwamandla.
(2) ukusebenza kokunciphisa kuhle, kuphephile futhi kuthembekile; Umsindo ophansi wokugijima nokudlidliza; Ukusebenza kokuvala kuhle ukuqinisekisa ukuthi i-powder yamalahle ayingeni kuzo zonke izingxenye zemishini ezijikelezayo.
(3) Ifanelekela ukugaya amalahle aqinile, amandla okugaya afanayo, ukusebenza kahle kokugaya okuphezulu. Ukusebenza okuzinzile nokuthembekile.
(4) Ukugaya i-MPS akukho ezingxenyeni zokungqubuzana ezingasebenzi kahle, futhi ukuguguleka kwensimbi kuncane kakhulu. Uma unenkinga yokukhetha imishini yokugaya amalahle, wamukelekile ukuxhumana nathi.Imishini ye-HCM for the basis of coal mill selection, contact information:hcmkt@hcmilling.com
Isikhathi sokuthunyelwe: Jan-19-2024
