Dab tsi yog Refiner Mill

Lub tshuab sib cais tsis tu ncua uas cais cov khoom cog xws li ntoo chips rau hauv fibers ntawm qhov kub thiab txias. Lub slurry npaj los ntawm cov cuab yeej no muaj fiber ntau zoo morphology thiab tsawg zog noj, yog li nws yog dav siv nyob rau hauv lub fiberboard kev lag luam. Nws yog cov khoom siv fiber ntau sib cais. Nyob rau xyoo 1970 thiab 1980s, cov txheej txheem mills pulping (TMP) kuj tau siv dav hauv kev lag luam ntawv.

Kub refiner zeb yog tsim los ntawm Arne Asplund ntawm Swedes nyob rau hauv 1931. Txij li thaum nws daim ntawv thov nyob rau hauv industrial ntau lawm nyob rau hauv 1934, nws cov qauv thiab kev ua tau zoo tau ua tsis tu ncua. Txoj kab uas hla ntawm qhov loj kub refining discs nyob rau hauv lub teb chaws tsim muaj peev xwm ncav cuag 1625 millimeters, lub cev muaj zog lub cev muaj zog tuaj yeem ncav cuag 9000 kilowatts, thiab cov khoom siv niaj hnub thiab hmo ntuj tuaj yeem ncav cuag 400-800 tons (qhuav slurry).

Thawj kub refiner zeb hauv Suav teb tau ua tiav tsim thiab tsim los ntawm Engineered wood machinery Hoobkas nyob rau hauv thaum ntxov 1960s. Tam sim no, Tuam Tshoj muaj peev xwm tsim ntau yam thermal mills, tsim ib tug series uas muaj peev xwm ua tau raws li cov kev xav tau ntawm kev lag luam hauv tsev ntub fiberboard. Txoj kab uas hla ntawm kev sib tsoo disc ntawm QM6B refiner zeb ua nyob rau hauv Suav teb yog 600 hli, thiab lub peev xwm ntawm txhua hnub thiab hmo ntuj ncav cuag 16-20 tons (qhuav slurry). Lub cev tseem ceeb ntawm lub tshuab refiner feem ntau yog tsim los ntawm cov khoom siv pub mis, preheating thiab ua noj ua haus, cov khoom sib tsoo, thiab cov khoom tso tawm (saib daim duab).

Khoom noj khoom haus:

Muaj hom xws li hom piston, hom ntsia hlau, thiab hom valve hom. Cov yam ntxwv ntawm kev pub mis yog ua kom tsis tu ncua ntawm cov khoom siv fiber ntau rau hauv cov khoom siv ua ntej thiab ua noj ua haus, thiab kom muaj kev sib khi zoo los tiv thaiv kev kub ntxhov siab thiab rov qab los ntawm cov khoom siv raw. Lub piston hom pub mechanism siv nyob rau hauv thaum ntxov theem tau hloov los ntawm ib tug ntsia hlau hom pub mechanism. Lub feeder yog conical kauv nrog lub suab sib txawv, uas compresses fiber ntau cov ntaub ntawv los tsim cov khoom ntsaws, ua tiav lub hom phiaj ntawm kev tiv thaiv rov qab. Qhov sib piv compression feem ntau yog siv los qhia qhov degree ntawm compaction ntawm cov khoom nyob rau hauv lub kauv. Qhov tseeb ntim piv ntawm ib tug ntsia hlau zawj thaum pib thiab ib tug ntsia hlau zawj ntawm qhov kawg ntawm qhov muab kauv yog hu ua compression ratio, uas feem ntau yog hais txog 1.6-2.2. Thaum siv cov ntoo chips ua raw cov ntaub ntawv, tus nqi me dua yog muab coj los siv, thiab thaum siv cov nyom ua raw cov ntaub ntawv, tus nqi loj dua yog noj. Tam sim no, qee yam tshiab ntawm cov kub refiner mills siv rotary pub li qub, uas tuaj yeem txo qhov squeezing thiab txiav kev puas tsuaj rau fibers thaum lub sij hawm ua haujlwm ntawm lub feeder. Kev siv hluav taws xob kuj tseem qis dua li ntawm hom kauv, thiab tsis muaj qhov tshwm sim rov qab. Txawm li cas los xij, kev tsim khoom siab yog qhov yuav tsum tau ua thiab chav noj haus kuj tseem siab.

Preheating khoom siv:

Nws txoj haujlwm yog ua kom cov khoom siv raw, ua kom yooj yim rau kev sib cais fiber ntau. Qhov tseem ceeb yog lub tank preheating, uas tau muab faib ua ob ntu: kab rov tav preheating tank thiab ntsug preheating tank. Nyob rau hauv xyoo tsis ntev los no, muaj ib tug qauv ntawm kev siv elevated ntsug digesters, uas tau yooj yim tswj lub sij hawm ua noj cov ntaub ntawv los ntawm kev saib xyuas qhov siab ntawm cov ntaub ntawv nyob rau hauv lub tank. Cov theem tswj uas nquag siv yog cov ntsuas qib resistive thiab cov khoom siv hluav taws xob ntsuas ntsuas.

Cov khoom siv sib tsoo:

Nws yog lub cev tseem ceeb ntawm cov kub refiner zeb, suav nrog spindle, sib tsoo chamber, sib tsoo disc, sib tsoo disc siab ntaus ntawv, thiab cov cuab yeej kho kom zoo. Kev sib tsoo disc muaj xws li ib tug taag disc thiab ib tug movable disc, thiab cov sib tsoo disc yog tsau rau cov sib tsoo disc nrog screws. Kev sib tsoo disc yog ib feem ua haujlwm uas ncaj qha ua lub luag haujlwm sib tsoo. Txhawm rau hloov mus rau cov ntaub ntawv sib txawv thiab ua tau raws li qhov yuav tsum tau ua ntawm kev txhim kho slurry zoo, muaj ntau hom thiab cov hniav sib tsoo ntawm cov hniav sib tsoo. Cov khoom sib tsoo feem ntau yog ua los ntawm cov hlau sib xyaw, nrog rau cov hniav hlau dawb thiab qhov tawv ntawm kwv yees li HB430-477. Tseem muaj kev sib tsoo discs ua los ntawm tshwj xeeb stainless hlau casting, uas zoo heev txhim kho lawv cov kev pab cuam lub neej. Kev sib tsoo disc pressurization ntaus ntawv txais hydraulic siab, uas ua kom ntseeg tau tias kev sib tsoo disc tsim ib qho kev sib tsoo siab ntawm cov khoom siv raw thaum lub sijhawm ua haujlwm ntawm cov kub refiner zeb. Thaum cov khoom nyuaj xws li cov hlau thaiv tau sib xyaw ntawm qhov sib tsoo discs tib lub sijhawm, qhov sib tsoo disc tuaj yeem sib cais sai. Thaum lub sij hawm txij nkawm thiab hloov cov kev sib tsoo discs, lub switching valve tuaj yeem ua haujlwm kom txav cov disc txav rov qab rau qee qhov deb. Cov cuab yeej zoo rau kev sib tsoo disc tshem tawm feem ntau txuas nrog lub cuab yeej siab, uas siv lub log los tsim me me ntawm axial txav ntawm cov ntxaiv los ntawm cov qauv xws li cab iav, ntsia hlau ntsia hlau, thiab lwm yam, kom raug kho qhov sib tsoo disc. tshem tawm.

Discharge device:

Muaj cov khoom tso tawm raws sij hawm thiab cov khoom siv tawm tsis tu ncua. Cov khoom siv ntau tshaj plaws ntawm lub sijhawm yog ob-theem reciprocating lub luj tshib tso tawm, tseem hu ua S-shaped paug valve. Kho qhov ua haujlwm stroke thiab zaus ntawm qhov tso tawm valve tuaj yeem tswj cov pa tawm ntawm cov pa thiab cov fibers, thiab tswj cov kev ua haujlwm ib txwm muaj nyob rau hauv kev sib tsoo chamber. Hom tshiab ntawm kub refiner zeb txais cov cuab yeej tawm mus tas li, ua kom yooj yim rau cov qauv ntawm cov khoom tawm. Nws siv lub zog siab rau kev tawm mus tas li, tshem tawm cov kev sib kis ntawm kev sib kis, tsis xav tau lub zog, txo cov suab nrov, thiab ua haujlwm yooj yim. Tsuav yog tsim thiab kho kom raug, chav noj tsis nce.

Txoj kev loj hlob ntawm thermal mills yog: ① ntawm cov lus qhia loj, siab ceev, thiab siab zog; ② Txo cov kev ua haujlwm siab ntawm cov kub refiner zeb thiab ua tiav qhov kub thiab txias pulping kom txo tau cov ntoo leaching; ③ Tsim kom muaj kev sib xyaw ua ke ntawm kev sib tsoo disc, qhov twg cov dej muaj zog rau dilution thiab txias yog qhia nruab nrab ntawm qhov sib tsoo sab hauv thiab sab nrauv kom tiav precision sib tsoo thiab kub sib tsoo hauv tib cov cuab yeej, hu ua txoj kev slurry ib zaug; ④ Kev saib xyuas zoo thiab tswj cov khoom siv qib, lub sijhawm ua noj, qhov sib txawv ntawm kev sib tsoo discs, thiab hnav cov kev sib tsoo disc tau ua tiav siv ntau yam thev naus laus zis xws li tshuab, hluav taws xob, ntsuas, thiab kho qhov muag.