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(1)Sefa layer

Iyo adsorbent inotorwa neiyo pre-yakatorwa filtrate uye yakacheneswa mvura yakacheneswa kana sefa slurry inosanganiswa mukumiswa mubhakiti rekudyisa, uye mushure mekumisikidzwa kwemvura kuti inyudzwe inosvika pane zvinodiwa, iyo sefa slurry inoparadzaniswa. Pinda, enderera mberi. Iyo yakananga yepakati yekupfekedza (basa rinowanzo shanda kune yekuwedzera sefa skrini. Ukobvu hwemamilimita layer hunowanzo 3-80. Mukugadzirwa chaiko kwesefa skrini, keke inogonawo kuramba ichichekwa (senge vacuum drum filter cake machine), iyo inogona kuva itsva Iyo firita mubhedha yakagadzikana uye yakagadzikana.

(2)Percolation:

Kufefetera kwemvura kunoitwa mumatanho maviri: pre-coating uye kuwedzera: ukobvu hwe pre-coating kazhinji 2-3 mm. Basa guru nderokudzivirira iyo sefa zvinhu kubva pakutora kusvibiswa, uye panguva imwechete ichishandura kuita polymer coating kana yawedzerwa kune sefa. Iyo pre-coating coating inowanzoita 2-3 mm. Ukobvu uye chimiro zvakakosha muhurongwa hwose. Zvinoenderana nehunhu hwesefa zvinhu (viscosity, particle uye zvirimo, compressible filterability yezvimedu, nezvimwewo), mushandisi anogona kushandisa anotevera maitiro:

(1) Pre-coating

Iyo pre-coating inoumbwa nebridging mhedzisiro yekusefa rubatsiro rwesefapasvikiro. Hongu: Dzivirira sefa yepakati (iyo mvura inofanirwa kusefa) kubva kune zvimedu zviri musefa; iyo filtrate inogona kuwanikwa pakutanga kwekusefa; iyo sefa yepakati iri nyore kukiya. Kana isati yaputirwa, iyo chaiyo sefa yekubatsira uye yakajeka mvura (kana disinfection mvura) yakaganhurwa kuita 5-10% (yakawanda chiyero) kumiswa mutangi rekutanga-coating, uye yakanaka uye yakagadzikana pre-coating inoumbwa pane sefa yepakati kuburikidza neinotenderera pombi. coating. Iyo pre-coating ukobvu hwesefa yekutsikisa inenge 2-4MM gobvu (iyo pre-coating sefa yekubatsira dosage ndeye 700-1000G/m²). Iyo kaviri mhepo sefa inoda pre-kunamira 8-15CM. Zviripachena kufefeta zvinodiwa, ine yakaderera-viscosity fluid (inenge 1CP), yakajairika pre-coating kuyerera mwero ingangoita 40L/m², uye yakaderera-viscosity fluid pre-coating kuyerera mwero inoderedzwa zvinoenderana.

(2) Mushure mekuwedzera sefa yekubatsira kusefa uye pre-kuputira, mushure mekunge sefa yehupfu yapinda musefa, zvakakosha kuwedzera sefa yerubatsiro ye 0.1-2.0% nehuremu hwe slurry. Mukuita kusefa, iyo yekubatsira sefa uye zvimedu zvisina kuchena musefa slurry zvinowedzerwa kune yekusefa inopindirana. Mari yekuwedzera inochengetedza huwandu uye kusimba kwezvikamu zvakaumbwa. Iyo yekusachena ine yakakwira yekumanikidza mwero, iyo sefa yerubatsiro yekuwedzera huwandu inoenderana Iko kuwedzera. Kuwedzerwa kwesefa kunofanirwa kuumbwa kana iyo firiji yekumanikidza inosvika pakumanikidzwa. Iyo yekusefa skrini yakazadzwa nesefa skrini inobvumira kupedzwa kweiyo yekudhonza sefa nzvimbo. Panguva ino mukutenderera kutenderera, iyo firita skrini inopinda padanho readsorption.

(3) Wedzera kusefa zvakananga:

Iyo sefa yerubatsiro uye zvakaonda musefa slurry zvakabatanidzwa pane yekutanga pre-layer kana sefa layer kuti igadzire sefa nyowani, kuitira kuti sefa ichengetedze yakagadzikana. Sefa yekumhanyisa. Panguva ino, saizi yechikamu cheWu Jia's filter aid inongotemwa nehunhu hwechimiro musefa slurry, uye haina kukanganiswa nekuumbwa kwesefa.