Isakhiwo kanye nemingcele yezobuchwepheshe ye-high-pressure grinding rolls

I-High-Pressure Grinding Rolls inezinhlobonhlobo zezinhlelo zokusebenza, njenge:

1 . Okumaphakathi, okuhle nokucolekile ukugaya phansi izinto ezixegayo.

2 . Imboni yokuhlomula ingahlelwa ngaphambi komshini webhola , njengethuluzi lokugaya ngaphambili , noma njengesistimu yokugaya eyi-hybrid enomshini webhola.

3 . Imboni ye-pellet ene-oxidized ingangena esikhundleni somshini wokugaya ovame ukusetshenziswa.

4 . Izinto zokwakha, izinto eziphikisayo kanye nezinye izimboni zifakwe ngempumelelo ku-clinker kasimende, i-limestone, i-bauxite nokunye ukugaya.

Uma usulungele ukuthenga i-roller enengcindezi ephezulu , kunconywa ukuthi uqale uqonde isakhiwo sayo esiyisisekelo kanye nokuqhathaniswa kwepharamitha ukuze usebenzise esikhathini esizayo.

I-1. I-angle yokubamba . Imigqa e-tangent emibili ngokulandelana idonswa endaweni lapho kuxhunywana khona phakathi kwezinto eziyindilinga kanye nerola , futhi i-engeli yayo ibizwa ngokuthi i-angle ye-clamp ye-high pressure roller mill. Ubudlelwano phakathi kwayo negebe lokuphuma : lapho u -e kuwububanzi begebe lamaroli amabili ( mm ) ; D ububanzi bomqulu (mm); η ukuhlanganiswa kwempahla , okungabalwa ngokuphuma kwevolumu engu-V yomshini wokugawula umfutho ophezulu : V = ηeLv , lapho i-V iyisivuno sevolumu (m3/h) yomshini wokugawula umfutho ophezulu; L ubude bomqulu (mm); v ijubane lempahla , (m/s).

I-2. usayizi werola. Ubude berola besilinganiso sobubanzi (L/D) bubizwa ngokuthi ipharamitha yejiyomethri yomshini wokugaya umfutho ophezulu . Okokusebenza okufanayo , usayizi omkhulu , umthamo wokukhiqiza uya mkhulu . Ezigayweni ezinamapharamitha wejiyomethri afanayo noma afanayo (isilinganiso sobude ukuya kobude ), izimo ezifanayo zokudonsa kanye nesivinini somugqa , okukhiphayo komshini kuhambisana nesikwele sobubanzi bomqulu. Ubude be-roller buncane kakhulu . Ngokwezibalo , isilinganiso sobude nobubanzi berola ngokuvamile sithi : L/D=1/3~1 .

I-3. ububanzi begebe lama-roll amabili. Isilinganiso (e/D ) sobubanzi begebe e lwemiqulu emibili ukuya kububanzi D bemiqulu kubhekiselwa kuso njengobubanzi begebe elihlobene , futhi isilinganiso singu-0.01 kuya ku-0.02, okungukuthi, ububanzi begebe lamaroli amabili. cishe u-1% kuya ku-2% wobubanzi bemigqa. Ububanzi begebe le-roller buhlobene nokuminyana okudlulayo kwesigayo. Uma igebe lilikhulu , i- throughput iba nkulu . Ngakho-ke , umklamo wegebe lamarola uyalungiseka , kuye ngezinto ezibonakalayo ( ukuqina , ukwakheka , izici zesakhiwo , njll ) , umswakama , ukwakheka kosayizi wezinhlayiyana , Usayizi wokuphakelayo Omkhulu , impahla kanye nokungqubuzana phakathi kwamaroli nezinye izici. Ububanzi begebe lamaroli amabili ngokuvamile bungu-6 kuye ku-12 mms.

I-4. usayizi wesiphakeli omkhulu. Usayizi wokuphakelayo omkhulu dmax unobudlelwano obulandelayo buka / kuya / phakathi kobubanzi beroll : dmax = ( 0.07 ~ 0.08 ) . D Uma kusetshenziswa i-roll ebushelelezi , okuqukethwe kwento ( dmax ) okukhulu kunobubanzi begebe e ekuphakeleni kufanele kube ngaphansi kuka - 20% , futhi isilinganiso kufanele sibe ngaphansi kuka-3. Usayizi wesiphakeli ojwayelekile ungaphansi kuka-50 mms kanti emikhulu ifika ku-80 mms.