Cov ntawv khib nyiab yog daim ntawv pov tseg uas tsis yog los ntawm keeb kwm muaj nqis, siv los ua cov khoom siv rov ua dua tshiab rau kev tsim cov ntawv thiab duab los qhia. Siv daim ntawv pov tseg pov tseg cov khoom siv raw. Cov tsiaj ntawv loj ntawm cov hav zoov tau tshwj tseg, uas yog txiaj ntsig zoo rau ecologically. Siv cov ntawv thiab cov duab los qhia yog ib puag ncig zoo li lawv tsis muaj cov khoom phom sij.
Tsim nyog
- - ntawv pov tseg;
- - dej;
- - pulper;
- - kev co tshee;
- - cua daj cua dub;
- - Cov koom tes tuaj yeem;
- - cais;
- - vortex conical tshuaj ntxuav kom huv.
Cov Lus Qhia
Kauj ruam 1
Rov qab siv cov ntawv pov tseg "siv thev naus laus zis" nyob rau ntau theem. Hauv thawj kauj ruam, ua txhaum daim ntawv khib nyiab hauv lub tshuab ua npuas. Nws muaj nyob rau hauv cov hauv qab no: daim ntawv thiab cov duab los qhia yog zuaj rau hauv qhov nruab nrab aqueous thiab sib cais rau hauv cov fibers los ntawm kev tsim sab hauv nrog sab hauv holes 10-12 hli.
Kauj ruam 2
Ntawm cov theem tom ntej, ntxuav daim ntawv pov tseg los ntawm lub teeb thiab hnyav impurities. Lub teeb ua kom tsis haum suav nrog cov ntawv pov tseg, cov ntaub ntawv polymer, thiab cov impurities hnyav - xuab zeb, ntawv txiav, iav, thiab lwm yam. Tshem tawm ntawm thawj hom impurities siv kev vibration ua kom txawv. Ntawm no cov khib nyiab loj dhau los ntawm ib sab cib thiab raug xa mus rau kev sau dua tshiab. Tshem tawm cov khoom tsis zoo nyob rau hauv cov ntawv so khoom ntxuav - khaub lig cua. Hauv cov khib nyiab ntawm lub cev, lub impurities hnyav mus qis thiab raug tshem tawm tsis tseg. Txhua cov cuab yeej ntxuav tu yuav tsum tau muaj dej los tiv thaiv daim ntawv pov tseg.
Kauj ruam 3
Tom qab ntxuav daim ntawv pov tseg los ntawm impurities, ua mus rau theem ua ntej tso. Nqa tawm ntxiv rau kev tso tawm ntawm cov khoom siv tshwj xeeb - cov cuab yeej tshwj xeeb xws li disc lossis conical mills, ntxiv rau kev txiav tawm lub siab nrog cov kab slotted lossis puag ncig, centrifugal sorting. Cov khoom sib xyaw ua noj muaj qhov tshwj xeeb kev sib tsoo nrog qhov tshem ntawm 0.5-2 hli. Kev txhuam nrawm, nrog rau kev sib txhuam ntawm cov ntawv pov tseg, pab txhawb kev sib cais ntawm cov ntawv pov tseg ntawm cov ntawv pov tseg thiab clumps ntawm cov ntawv ua cov ntawv nyias. Ib sab xis cylindrical yog nyob rau hauv lub tsev centrifugal npo, nyob rau hauv uas tus hniav rotor nyob. Cov khib nyiab tsis haum loj, poob rau hauv nruab nrab qhov ntawm txoj kev cais, yog qhia los ntawm rotor hniav mus rau sab hauv sab hauv ntawm sab cib. Cov fibers dhau ntawm lub sieve txuas ntxiv ua ntej. Unfibered clumps ntawm cov fibers nrog impurities yog thauj rau pem hauv ntej rau kev tshem tawm los ntawm ceg yeeb nkab. Ua raws li lub hom phiaj thiab kev tsim cov ntawv cais, lawv ua haujlwm ntawm cov ntawv qis, nruab nrab thiab siab siab ntawm cov ntawv pov tseg, uas yog 0, 2-1, 5%, 2-3% thiab 4-5%, feem.
Kauj ruam 4
Thaum kawg, txav mus rau qhov kawg tu ntawm daim ntawv pov tseg. Ua li no, siv cov vortex lub khob hliav qab tshuaj ntxuav. Daim ntawv pov tseg kis tau dhau los ntawm peb qib ntawm no. Kev ua kom huv si, kev xaiv cov huab hwm coj kom zoo yog 0.5%.
