Ka'idar aiki na Diatomite Filter Aid
Aikin matattarar tacewa shine canza yanayin taruwar ƙwayoyin cuta, ta haka ne ke canza girman rarraba ƙwayoyin cuta a cikin matattarar tacewa. Diatomite Filter Aidare galibi ya ƙunshi SiO2 mai karko a sinadarai, tare da ƙananan ƙwayoyin cuta na ciki, suna samar da tsare-tsare daban-daban masu tauri. A lokacin aikin tacewa, ƙasa mai diatomaceous ta fara samar da matattarar matattarar mai ramuka (precoating) akan farantin matattarar. Lokacin da matattarar ta ratsa ta hanyar matattarar tacewa, ƙwayoyin da ke cikin dakatarwar suna samar da yanayin tarawa, kuma rarrabawar girman yana canzawa. Ana kama ƙazanta na manyan ƙwayoyin cuta kuma ana riƙe su a saman matsakaiciyar, suna samar da ƙaramin layin rarrabawa. Suna ci gaba da toshewa da kama ƙwayoyin da ke da girma iri ɗaya, a hankali suna samar da kek ɗin matattarar tare da wasu ramuka. Yayin da tacewa ke ci gaba, ƙazanta tare da ƙananan ƙananan ƙwayoyin cuta a hankali suna shiga cikin matattarar matattarar ƙasa mai ramuka kuma ana katse su. Saboda ƙasa mai siffar diatomaceous tana da porosity na kusan kashi 90% da kuma babban yanki na musamman, lokacin da ƙananan barbashi da ƙwayoyin cuta suka shiga cikin ramukan ciki da waje na taimakon matatar, sau da yawa ana katse su saboda shawagi da wasu dalilai, wanda zai iya rage 0.1 μ Cire ƙananan barbashi da ƙwayoyin cuta daga m ya sami kyakkyawan tasirin tacewa. Yawan taimakon matatar gabaɗaya shine kashi 1-10% na taro mai ƙarfi da aka katse. Idan adadin ya yi yawa, zai shafi haɓaka saurin tacewa.
Tasirin tacewa
Tasirin tacewa na Diatomite Filter Aid galibi ana samunsa ne ta hanyoyi guda uku masu zuwa:
1. Tasirin tantancewa
Wannan tasirin tacewa ne na saman, inda lokacin da ruwan ke gudana ta cikin ƙasa mai kama da diatomaceous, ramukan ƙasa mai kama da diatomaceous sun fi ƙanƙanta fiye da girman barbashi na barbashi na ƙazanta, don haka barbashi na ƙazanta ba za su iya wucewa ba kuma ana katse su. Wannan tasirin ana kiransa sieving. A zahiri, ana iya ɗaukar saman kek ɗin matattara a matsayin saman sieve tare da matsakaicin girman rami daidai. Lokacin da diamita na barbashi masu ƙarfi bai ƙasa da (ko ɗan ƙasa da) diamita na rami na ƙasa mai kama da diatomaceous ba, za a "kare" barbashi masu ƙarfi daga dakatarwar, suna taka rawa a cikin tacewa ta saman.
2. Tasirin zurfin
Tasirin zurfin shine tasirin riƙewa na tacewa mai zurfi. A cikin tacewa mai zurfi, tsarin rabuwa yana faruwa ne kawai a cikin matsakaici. Wasu ƙananan ƙwayoyin ƙazanta da ke ratsa saman kek ɗin matattara suna toshewa ta hanyar hanyoyin ƙananan ramuka masu lanƙwasa a cikin ƙasa mai diatomaceous da ƙananan ramuka a cikin kek ɗin matattara. Waɗannan ƙwayoyin galibi suna ƙanƙanta fiye da ƙananan ramuka a cikin ƙasa mai diatomaceous. Lokacin da ƙwayoyin suka yi karo da bangon tashar, yana yiwuwa a cire su daga kwararar ruwa. Koyaya, ko za su iya cimma wannan ya dogara da daidaito tsakanin ƙarfin inertial da juriya na ƙwayoyin. Wannan aikin katsewa da tantancewa suna kama da yanayi kuma suna cikin aikin injiniya. Ikon tace ƙwayoyin datti yana da alaƙa ne kawai da girman da siffar ƙwayoyin datti da ramuka masu ƙarfi.
3. Tasirin shaye-shaye
Tasirin shaƙar iska ya bambanta gaba ɗaya da hanyoyin tacewa guda biyu da aka ambata a sama, kuma wannan tasirin a zahiri ana iya ɗaukarsa a matsayin jan hankalin lantarki, wanda ya dogara ne akan halayen saman barbashi masu ƙarfi da ƙasa mai diatomaceous kanta. Lokacin da barbashi masu ƙananan ramuka na ciki suka haɗu da saman ƙasa mai ramuka, suna jawo hankalin su ta hanyar caji daban-daban ko kuma suna samar da tarin sarƙoƙi ta hanyar jan hankali tsakanin barbashi kuma suna manne wa ƙasa mai diatomaceous, waɗanda duk suna cikin shaƙar iska. Tasirin shaƙar iska ya fi rikitarwa fiye da biyun farko, kuma gabaɗaya ana kyautata zaton cewa dalilin da yasa aka katse barbashi masu ƙananan diamita na ramuka shine galibi saboda:
(1) Ƙarfin da ke tsakanin ƙwayoyin halitta (wanda kuma aka sani da jan hankalin van der Waals), gami da hulɗar dipole na dindindin, hulɗar dipole da aka haifar, da hulɗar dipole nan take;
(2) Kasancewar ƙarfin Zeta;
(3) Tsarin musayar ion.
Lokacin Saƙo: Afrilu-01-2024