Niƙan kwal wani muhimmin ɓangare ne na tsarin juzu'a da kuma muhimmin kayan aikin wutar lantarki a cikin tashar wutar lantarki.Babban aikinsa shine karya da niƙa gawayi a cikin kwal da aka niƙa don samar da kayan aikin tukunyar jirgi, tsarinsa zai shafi aminci da tattalin arzikin rukunin kai tsaye.Saboda yadda ake daidaita masana'antar kwal daban-daban zuwa nau'ikan kwal daban-daban ya bambanta sosai, tare da ainihin yanayin da ake ciki na rashin daidaito na rarraba kayayyakin kwal a kasar Sin, ingancin kayayyakin kwal zai yi tasiri kai tsaye ga tattalin arzikin tsarin da ake jibgewa.Don haka, ta yaya za a zaɓi zaɓin kayan aikin niƙa kwal?Injin HCMa matsayin masana'antun sarrafa kwal, zai gabatar da tushen zaɓin injin niƙa.Akwai nau'ikan Mill da yawa, gwargwadon saurin nika na zaɓin zaɓi na ɗan gida za a iya raba su iri uku, wato: ƙaramin mai-harafi da niƙa mai sauri. .Masu zuwa za su gabatar da zaɓin waɗannan kayan aikin niƙan kwal guda uku bi da bi.
Zaɓin kayan aikin injin kwal 1: injin niƙa mai ƙarancin sauri
Wakilin na yau da kullun na injin niƙa mai ƙarancin gudu shine injin ƙwallon ƙwallon.Ka'idar aiki ita ce: motar da ke da ƙarfi ta cikin akwatin gear don fitar da wannan nauyin zagaye na farantin karfe, ƙwallon ƙarfe a cikin sauƙi yana jujjuya zuwa wani tsayi sannan kuma ya faɗi ƙasa, ta hanyar tasirin ƙwallon ƙarfe akan kwal da tsakanin ƙwallon karfe, tsakanin ƙwallon karfe da farantin tsaro, kwal ɗin yana ƙasa.Kwal ɗin da ba ta cancanta ba ta rabu lokacin da yake gudana ta cikin madaidaicin foda a bayan injin niƙa, sannan a aika zuwa farantin madauwari daga bututun foda na dawowa don sake niƙa.Baya ga safarar foda, iska mai zafi kuma tana taka rawar bushewa.Sabili da haka, ana kiran iska mai zafi a cikin tsarin foda.Samfurin yana da halaye na tsawon lokaci mai ci gaba da aiki, kulawa mai sauƙi, ingantaccen fitarwa da inganci, babban ƙarfin ajiya, saurin amsawa, babban sassaucin aiki, ƙarancin iska-kwal rabo, ceton kayan aikin kwal, babban kewayon niƙa kwal da sauransu.An fi amfani da shi don kwal mai ƙarfi da matsakaici-taurin, musamman don kwal tare da babban abun ciki mara ƙarfi da ƙaƙƙarfan kadara.Koyaya, wannan injin niƙa mai ƙarancin sauri yana da girma, yana da babban amfani da ƙarfe, yana mamaye ƙasa mai yawa, kuma yana da babban saka hannun jari na farko.Don haka ƙwallon ƙwallon ƙwallon ya dace da cikakken aikin aiki.
Kayan aikin injin kwal 2:matsakaicin gudun kwal niƙa
Matsakaicin injin niƙa gawayi kuma ana kiransa da injin niƙa a tsaye, wanda ke da alaƙa da sassan niƙa da suka ƙunshi ƙungiyoyi biyu na motsi na dangi na nika.Ana matse gawayin a niƙa tsakanin saman jikin biyun da ke niƙa kuma a niƙa.A lokaci guda kuma, iska mai zafi ta cikin niƙa tana busar da kwal ɗin kuma ta aika da kwal ɗin da aka niƙa zuwa ga mai rarrabawa a ɓangaren sama na yankin niƙa.Bayan rabuwa, ana fitar da kwal ɗin da aka dasa na wani girman barbashi daga cikin niƙa tare da kwararar iska, kuma ana mayar da kwal ɗin da aka tarwatse zuwa wurin niƙa don sake niƙa.Matsakaicin matsakaicin saurin kwal ɗin yana da fa'idodin ƙaƙƙarfan kayan aiki, ƙaramin sawun ƙafa, tanadin wutar lantarki (kimanin 50% ~ 75% na ƙwallon ƙwallon ƙafa), ƙaramin ƙara, haske da kulawar aiki mai mahimmanci.Amma bai dace da niƙa mai wuyar kwal ba.
Zaɓin kayan aikin injin kwal 3: injin niƙa mai sauri
The gudun high-gudun gawayi niƙa ne 500 ~ 1500 r / min, wanda aka yafi hada da high-gudun rotor da nika harsashi.Na kowa fan nika da guduma nika da sauransu.A cikin injin niƙa, kwal ɗin yana murƙushewa ta hanyar karo tsakanin tasirin babban sauri da harsashi mai niƙa da karo tsakanin kwal.Irin wannan nau'in niƙa da ƙwanƙwasa mai ƙwanƙwasa ya zama cikakke, tsarin yana da sauƙi, m, saka hannun jari na farko yana da ƙasa, musamman dacewa da niƙa babban ɗanshi lignite da abun ciki mara ƙarfi, mai sauƙin niƙa kwal bituminous.Duk da haka, saboda tasirin farantin yana lalacewa kai tsaye kuma yana sawa ta hanyar iska, rayuwar sabis ɗin ta gabaɗaya kusan 1000h ne kawai lokacin da ake niƙa lignite, sauyawa akai-akai, kuma abun cikin ruwa na kwal ɗin ƙasa bai kamata ya yi girma ba, wanda galibi ana amfani dashi don busa tukunyar jirgi kai tsaye a cikin masana'antar wutar lantarki, kuma bai kamata a yi amfani da shi ba wajen yin allurar tanderu.
Abubuwan da ke sama iri uku da ke sama suna da fa'ida da rashin nasara, a zaɓin kayan aiki na dafa abinci, yana da mahimmanci don la'akari da zaɓi na tsarin pulonver.Ana iya raba tsarin foda zuwa nau'i biyu: nau'in busa kai tsaye da nau'in ajiya na tsakiya (wanda ake nufi da nau'in ajiya).A cikin tsarin busa kai tsaye, ana niƙa kwal a cikin injin niƙa da aka niƙa sannan a hura kai tsaye cikin tanderun don konewa.A cikin tsarin jujjuyawar ma'adanin, ana fara adana kwal ɗin da aka dasa a cikin kwandon da aka dasa, sannan kuma bisa ga buƙatun nauyin tukunyar tukunyar, ana aika kwal ɗin daga cikin kwandon da aka dasa zuwa tanderun don ƙonewa.Daban-daban tsarin ɓarkewa kuma sun dace da nau'ikan nau'ikan gawayi da zaɓin kayan aikin niƙa.Dangane da tsarin jujjuyawar, mun taƙaice tushen da za a zaɓa don injin niƙa:
(1) Ƙarfe ball a cikin tsakiyar ajiya bin irin zafi iska foda tsarin: za a iya amfani da anthracite (Vsr<9%) da kuma sa a cikin karfi sama da kwal.
(2) Ball niƙa tsakiyar ajiya irin shaye gas foda tsarin bayarwa: yafi amfani da gawayi tare da karfi lalacewa da matsakaici maras tabbas (Var-19% ~ 27%) bituminous kwal.
(3) Biyu-a biyu-fita karfe ball niƙa kai tsaye hurawa tsarin 22-241: ga matsakaici-high maras tabbas (Vs.7-27% ~ 40%) bituminous kwal.
(4) Matsakaici-gudun gawayi niƙa kai tsaye tsarin busawa: dace da niƙa bituminous coal tare da babban maras tabbas abun ciki (Vanr-27% ~ 40%), high danshi abun ciki (danshi na waje Mp≤15%) da kuma karfi lalacewa, kazalika da kwal. Asarar karya da ke ƙasa da ƙarfi, aikin konewar kwal yana da ƙonewa, kuma rarrabuwar tarar kwal ta cika buƙatun masana'antar kwal.
(5) Tsarin busa kai tsaye fan niƙa: dace da lignite yashwar lalacewa index Ke≤3.5 da 50 MW da ƙasa bituminous kwal naúrar tukunyar jirgi
A cikin zaɓin kayan aikin injin kwal, ya kamata a yi la'akari da shi bisa ga halayen konewa, lalacewa da halayen fashewar gawayi, halayen ɓarke na injin niƙa da buƙatun ƙarancin ƙarancin kwal, haɗe tare da tsarin tanderu da tsarin ƙona tukunyar jirgi. , da kuma la'akari da zuba jarurruka, kulawa da matakin aiki na tashar wutar lantarki da kayan aiki masu tallafi, samar da kayan aiki, tushen kwal da tarkace a cikin kwal da sauran dalilai.Domin cimma daidaito mai ma'ana a tsakanin tsarin tarwatsawa, na'urar konewa da tanderun wuta, don tabbatar da amintaccen aiki da tattalin arziƙin naúrar.Injin HCM ƙwararre ne a cikin masana'antun masana'antar injin niƙa mai matsakaicin sauri, muna samar da jerin HLM na injin niƙa mai matsakaicin sauri yana da halaye masu zuwa:
(1) Yin amfani da manyan diamita na nadi da faifai, juriya na juriya yana da ƙananan, yanayin shigar da albarkatun kwal yana da kyau, don haka inganta ƙarfin samarwa, rage yawan amfani da makamashi.
(2) aikin ragewa yana da kyau, aminci kuma abin dogara;Ƙarƙashin amo da rawar jiki;Ayyukan rufewa yana da kyau don tabbatar da cewa foda na kwal ba ya shiga duk sassan injin juyawa.
(3) Dace da nika mai wuya kwal, uniform nika karfi, high nika yadda ya dace.Aiki mai tsayayye kuma abin dogaro.
(4) MPS niƙa ba ya wanzu a cikin maras tasiri gogayya sassa, kuma karfe lalacewa ne in mun gwada da ƙarami.Idan kuna da matsalar zaɓin kayan aikin injin kwal, maraba don tuntuɓarInjin HCM for the basis of coal mill selection, contact information:hcmkt@hcmilling.com
Lokacin aikawa: Janairu-19-2024
