Alaabta

Hordhac guud:
Shaandheeye (mararka qaarkood loo yaqaan Plate-and-Frame Filter press) kaas oo qeexaya qaabka filtarrada laga soo bilaabo qarnigii 19-aad ee asal ahaan dhoobada ah. Inta badan filtarrada maanta waxaa si sax ah loogu yeeraa "saxadda filter qolka", "Membrane filter press", ama "Membrane Plate Filter". Nidaamyo badan oo ka mid ah warshadaha cuntada, kiimikooyinka ama warshadaha dawooyinka ayaa sameeya alaab ka joojinta dareeraha adag ama slurries. Isku dhafkan waa sida dhoobo dareere ah ama caano rux. Waxyaabaha adag ee ku jira kuma milmaan dareeraha, laakiin waxaa lagu dhex qaadayaa. Cadaadiska shaandhaynta ayaa kala sooca adkaha iyo dareeraha si qaybta waxtarka leh loo habeeyo, loo baakeeyo ama loo gaarsiiyo tallaabada xigta.
Cadaadiska shaandhaynta guud ahaan waxay u shaqeeyaan si "dufcad" ah. Taarikada waa la isku dhejiyaa, ka dibna bamku wuxuu bilaabaa inuu quudiyo qulqulka miiraha si uu u dhamaystiro wareegga shaandhaynta oo uu soo saaro dufcad walxo adag oo la sifeeyey, oo loo yaqaan keega filter. Xirmooyinka taarikada waa la furay, adagna waa la saarayaa, xirmooyinka taarikada ayaa dib loo xiraa waxaana lagu soo celiyaa wareegga shaandhaynta.

Saxafada shaandhada waxay isticmaashaa cadaadiska bamka oo kordhay si ay sare ugu qaaddo heerka sifaynta oo ay soo saarto keega shaandhada kama dambaysta ah oo leh biyo ka hooseeya 65%. Tani way ka waxtar badan tahay sifaynta caadiga ah sababtoo ah cadaadiska sifaynta ee kordhay ee bamku isticmaalo kaas oo gaari kara meel kasta oo u dhaxaysa 50-200 PSI. Saxafada filtarku waxay ka kooban tahay qolal shaandhooyin taxane ah oo u dhexeeya afargeesle, leydi ama wareegyo taarikada shaandhada oo lagu taageerayo birta jir. Marka qolalka shaandhada la isku dhejiyo, shaandhada shaandhada ayaa lagu shubaa dareere. Taarikada ku jirta madbacada shaandhada waxa lagu xidhaa wanan biyo-diid ah kuwaaso dhaliya cadaadis caadi ahaan ah gobolka 3000 rodol halkii inji oo labajibbaaran.
Marka lagu daro dhexdhexaadinta saxan shaandhaynta, keega shaandhada sii koraya waxa uu wanaajiyaa ka saarida walxaha yaryar ee slurry-ka. Xalka ka imanaya bib-biyoodka saxarada shaandhada, loo yaqaan filter-ka, ayaa ahaan doona saafi. Dhammaadka sifaynta, keega shaandhada adag waa la saari karaa. Habka sifaynta oo dhan waxaa inta badan gacanta ku haya elektaroonigga si ay uga dhigaan mid toos ah ama mid toos ah.