Tinthu kukula kugawa analsis kwa kupaka ufa

Tinthu kukula kugawa analsis kwa ufa wophimba

Zotsatira za mayeso a laser particle size analyzer:

Avereji tinthu kukula (pakati awiri awiri), malire tinthu kukula ndi kugawa kwa tinthu wa kubalalitsidwa.

1. Kukula kwachitsanzo kumakhala kochepa komanso kwakukulu kuposa 50% ya tinthu tating'onoting'ono.
2. Malire tinthu kukula: pafupi ndi nzeru wamba kwa pazipita ndi osachepera tinthu kukula. Komabe, pazipita ndi osachepera tinthu kukula kufotokoza chapamwamba ndi m'munsi malire a chitsanzo tinthu kukula unscientific, ndi jini.rally malire tinthu kukula, monga (D10, D90) = (8,60), izo zikuimira zosakwana 8 microns m'mimba mwake particles amawerengera 10% ndi 90%, chiwerengero cha particles ang'onoang'ono kuposa 60 microns awiri.
3. Kubalalitsidwa kwa tinthu kukula kugawa = (D90-D10) / D50, kubalalitsidwa, ang'onoang'ono tinthu kukula kugawa ndi yopapatiza, lalikulu kwambiri ndi ochepa particles mu ang'onoang'ono tinthu kukula apamwamba ndende.

Ubale pakati pa kukula kwa tinthu ndi mtundu wa ufa:

Tinthu kukula kugawa ndi filimu kapangidwe, kusalala, gloss, zotsatira za tinthu, moyo zotsatira, ufa fluidization, kusunga bata ndi mlingo kuchira ufa zikugwirizana kwambiri.

1. Maonekedwe, kusanja, ndi tinthu tating'ono: Mu jiniral, kukula kwa tinthu ting'onoting'ono kumapangitsa kuti utoto ukhale wosalala bwino; yemweyo ❖ kuyanika makulidwe, yaing'ono tinthu kukula kwa ufa si kophweka kuoneka tinthu; maonekedwe a zokutira amakhala osalala, osalala.
2. zotsatira zamoyo ndi zokolola ufa: Kuimbidwa mlandu kusintha ufa particles, ❖ kuyanika ufa pa mlingo adzakhala ziwonjezeke. Waukulu adsorption mphamvu ya electrostatic kupopera mbewu mankhwalawa electrostatic ufa, ufa zokolola zimadalira kuchuluka kwa mlandu particles ufa. Ufa ndi mphamvu ndi ufa tinthu kukula ndi molingana ndi lalikulu. Wonjezerani tinthu kukula, ufa ndi apamwamba mowa, mlingo wa ufa. Ufa tinthu kukula ndi lalikulu kwambiri, lalikulu kwambiri tinthu kukula, mphamvu yokoka ya lalikulu tinthu ufa pa aerodynamic ndi electrostatic ufa ❖ kuyanika pa ndege, wakhala kugwa chifukwa mphamvu yokoka safika pamwamba, koma kuti mlingo ufa. Ufa wabwino kwambiri mlandu m'munsi ❖ kuyanika ntchito Mwachangu adzagwa, kopitilira muyeso-chabwino ufa (tinthu kukula <10μm) kwenikweni musakhale pa nthawi yomweyo ufa ndi wabwino kwambiri chinawonjezera vuto la ufa kupanga.
3. Zotsatira za ufa: Ufa ndi wochepa kwambiri, ufa wochepa kwambiri udzakhala ndi gulu lophatikizira la ufa, kukhamukira sikungafalikire. Akapopera pa workpiece kupanga yosalala ndi yaing'ono, bwanji ❖ kuyanika maonekedwe. Pamene ufa kwambiri coarse ufa kwa ufa mbiya si kophweka fluidization.
4. Kukhazikika kosungirako: Kukhazikika kumatanthauza kupaka ufa pansi pazifukwa zina, kusunga kukula kwa tinthu tating'ono, mawonekedwe ndi kuuma mphamvu, mwachitsanzo, ngati ufa wosungirako kapena kugwiritsa ntchito udzayamwa chinyezi, kuchitika kwa zochitika monga ufa wophika. Nthawi zambiri ufa wabwino kwambiri, makamaka ultrafine ufa zili zosakwana 10μm kwambiri ufa mosavuta kuyamwa chinyezi, mfundo magulu, utachepa bata, adzakhala pulagi mfuti, kulavulira ufa zoipa.
5. The kuchira mlingo: Ufa ❖ kuyanika kupanga chomera ndi ufa ❖ kuyanika utoto chomera pali nkhani yobwezeretsanso ufa ❖ kuyanika, kawirikawiri ufa tinthu kukula <10μm kopitilira muyeso ufa kuchira mlingo ndi otsika, pamene tinthu kukula tinthu> 10μm pm ufa ❖ kuyanika kuchira kuchira. mlingo kukwera mofulumira, ndi ufa Mlingo kuchira kuchuluka monga tinthu kukula ukuwonjezeka.

Ufa ❖ kuyanika kuchita tanthauzo la tinthu kukula kuzindikira ndi chilinganizo chomwecho, chitsogozo cha kupanga ufa, ntchito ya ufa kukwaniritsa pazipita kukhathamiritsa.