Makina opangira ma pellet a mphete ndi chida chofunikira kwambiri pakupangira mafuta amtundu wa biomass, ndipo mphete yofa ndiye gawo loyambira la makina opangira udzu wa mphete, komanso ndi gawo limodzi mwa magawo omwe amavalidwa mosavuta pa udzu wa mphete. makina a pellet. Phunzirani zifukwa zakufa kwa mphete, sinthani momwe mphete imagwiritsidwira ntchito, sinthani mtundu wazinthu ndi zotulutsa, kuchepetsa kugwiritsa ntchito mphamvu (granulation mphamvu yamagetsi imatenga 30% mpaka 35% ya mphamvu zonse zogwiritsidwa ntchito pamsonkhano wonse), ndikuchepetsa kupanga. ndalama (ring die loss one Mtengo wa pulojekitiyi umaposa 25% mpaka 30% ya mtengo wokongoletsa wa msonkhano wonse wopanga) ndipo umakhudza kwambiri.

1. Mfundo yogwirira ntchito ya makina a mphete afa pellet

Kufa kwa mphete kumayendetsedwa kuti azizungulira ndi mota kudzera pa chotsitsa. The kukanikiza wodzigudubuza anaika mu mphete kufa si kuzungulira, koma azungulire palokha chifukwa cha kukangana ndi mozungulira mphete kufa (pophatikiza zinthu). The kuzimitsidwa ndi kupsya zipangizo kulowa kukanikiza chipinda ndi wogawana anagawira pakati pa kukanikiza odzigudubuza ndi spreader, clamped ndi kufinyidwa ndi kukanikiza odzigudubuza, ndi mosalekeza extruded kupyolera kufa dzenje la mphete kufa kupanga columnar particles ndi kutsatira mphete kufa. Mphete imazunguliridwa, ndipo tinthu tating'onoting'ono tamafuta tambiri tambiri timadulidwa ndi chodulira chomwe chimayikidwa kunja kwa mphete. Kuthamanga kwa mzere wa mphete kufa ndi mpukutu wa nip ndi chimodzimodzi nthawi iliyonse yokhudzana, ndipo mphamvu zake zonse zimagwiritsidwa ntchito popanga pelletizing. Munthawi yogwira ntchito ya mphete, nthawi zonse pamakhala kukangana pakati pa kufa kwa mphete ndi zinthu. Pamene kuchuluka kwa zinthu zopangidwa kumawonjezeka, mpheteyo imafa pang'onopang'ono imatha ndipo pamapeto pake imalephera. Pepalali likufuna kusanthula zomwe zimayambitsa kufa kwa mphete, kuti apange malingaliro opangira ndikugwiritsa ntchito mpheteyo.

2. Kusanthula kulephera zomwe zimayambitsa kufa kwa mphete

Kuchokera pakuwona kulephera kwenikweni kwa mphete kufa, ikhoza kugawidwa m'magulu atatu. Mtundu woyamba: Pambuyo pakufa kwa mpheteyo kwa nthawi yayitali, khoma lamkati la dzenje laling'ono lazinthu limatha, kukula kwa dzenje kumawonjezeka, ndipo kuchuluka kwa tinthu tamafuta opangidwa ndi granular biomass kumapitilira mtengo wodziwika ndikulephera; mtundu wachiwiri: Pambuyo pa khoma lamkati la mphete kufa, mkati mwake Kusafanana ndi koopsa, komwe kumalepheretsa kutuluka kwa tinthu tating'onoting'ono tamafuta, ndipo voliyumu yotulutsa imachepa ndikusiya kugwiritsa ntchito; mtundu wachitatu: pambuyo pa khoma lamkati la mphete kufa, m'mimba mwake ukuwonjezeka ndipo makulidwe a khoma amachepetsa, ndipo khoma lamkati la dzenje lotulutsa limavalanso ndi kuvala. , kotero kuti makulidwe a khoma pakati pa mabowo otulutsa amachepetsedwa mosalekeza, kotero mphamvu zamapangidwe zimachepa. M'mimba mwake ya mabowo otulutsa isanachuluke mpaka mtengo wovomerezeka (ndiko kuti, mtundu woyamba wa kulephera usanachitike), m'mikwingwirima yowopsa kwambiri idawonekera koyamba pamtanda ndikupitilira kukula mpaka ming'aluyo idakulirakulira. range ndipo ring die inalephera. Zomwe zimayambitsa kulephera kwazinthu zitatu zomwe tatchulazi zitha kufotokozedwa mwachidule ngati kuvala konyowa koyamba, kenako kutopa.

2-1 Zovala za abrasive

Pali zifukwa zambiri zobvala, zomwe zimagawidwa muzovala zachilendo ndi zachilendo. Zifukwa zazikulu za kuvala bwino ndi chilinganizo cha zinthu, ndi kuphwanya tinthu kukula, ndi quenching ndi kutentha khalidwe la ufa. Pamavalidwe abwinobwino, mpheteyo imafa imavalidwa mwanjira ya axial, zomwe zimapangitsa kuti dzenje lalikulu komanso makulidwe ocheperako. Zifukwa zazikulu za kuvala kwachilendo ndi: choponderetsa choponderezedwa chimasinthidwa mwamphamvu kwambiri, ndipo kusiyana pakati pa wodzigudubuza ndi mphete kufa ndi kochepa, ndipo amavala wina ndi mzake; ngodya ya wofalitsa si yabwino, zomwe zimapangitsa kuti pakhale kugawidwa kosagwirizana kwa zipangizo ndi kuvala pang'ono; chitsulo chimagwera mu kufa ndi kuvala. Pachifukwa ichi, mphete ya mphete nthawi zambiri imavalidwa mosasintha, makamaka ngati ng'oma ya m'chiuno.

2-1-1

Zopangira tinthu kukula Zopangira pulverization fineness ayenera zolimbitsa ndi yunifolomu, chifukwa zopangira pulverization fineness chimatsimikizira padziko dera wopangidwa ndi zotsalira zazomera mafuta particles. Ngati tinthu tating'onoting'ono tazinthu zopangira tinthu tating'onoting'ono tambiri, kuvala kwa kufa kumawonjezeka, zokolola zimachepa, ndipo kugwiritsa ntchito mphamvu kumawonjezeka. Nthawi zambiri pamafunika kuti zopangira zidutse pa sieve ya ma mesh 8 pambuyo pophwanyidwa, ndipo zomwe zili pa 25-mesh sieve zisapitirire 35%. Pazinthu zomwe zili ndi ulusi wambiri wamafuta, kuwonjezera mafuta ena amatha kuchepetsa kukangana pakati pa zinthuzo ndi mphete kufa panthawi ya granulation, zomwe zimapindulitsa kuti zinthuzo zidutse mu mphete kufa, ndipo ma pellets amakhala ndi mawonekedwe osalala. pambuyo popanga. Makina opangira ma pellet opangidwa ndi mphete

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Kuipitsidwa kwa zinthu zopangira: Kuchuluka kwa mchenga ndi zitsulo zosafunika zomwe zili m'zinthuzo zimafulumizitsa kufa kwa kufa. Choncho, kuyeretsa zipangizo ndi zofunika kwambiri. Pakalipano, zomera zambiri zamafuta amtundu wa pellet zimaganizira kwambiri kuchotsa zonyansa zachitsulo muzopangira, chifukwa zinthu zachitsulo zidzawononga kwambiri nkhungu ya atolankhani, makina osindikizira komanso ngakhale zipangizo. Komabe, palibe chidwi chomwe chimaperekedwa pakuchotsa mchenga ndi zonyansa za miyala. Izi ziyenera kudzutsa chidwi cha ogwiritsa ntchito makina a ring die straw pellet