Kodi pali kusiyana kotani pakati pa desiccant mu thumba la chakudya?

Desiccant ndi yofala kwambiri pamoyo watsiku ndi tsiku.Nthawi zambiri, mutha kugula matumba a mtedza, omwe ali ndi desiccant.Cholinga cha desiccant ndi kuchepetsa chinyezi cha mankhwala ndi kuteteza mankhwala kuti asawonongeke ndi chinyezi, motero zimakhudza ubwino wa mankhwala.Kulawa.Ngakhale kuti ntchito ya desiccant ndikutenga chinyezi cha mpweya muzogulitsa, mfundo yogwiritsira ntchito ndi zipangizo ndizosiyana.Pali mitundu iwiri molingana ndi chemistry ndi physics:
Chemical drying agent:
Calcium chloride desiccant
Calcium chloride imapangidwa makamaka ndi calcium carbonate yapamwamba kwambiri komanso hydrochloric acid monga zida zopangira.Zakhala woyengedwa ndi anachita kaphatikizidwe, kusefera, evaporation, ndende ndi kuyanika.Nthawi zambiri amagwiritsidwa ntchito ngati calcium fortifier, chelating agent, machiritso ndi desiccant muzakudya.Kuphatikiza apo, imagwiritsidwanso ntchito ngati desiccant ya mpweya.Itha kugwiritsidwa ntchito kuuma mpweya wosalowerera ndale, wamchere kapena asidi ndipo imagwiritsidwa ntchito ngati dehydrating agent popanga ethers, alcohols, propylene resins, etc. Calcium kolorayidi nthawi zambiri imakhala porous, granular kapena zisa zakuthupi, zopanda fungo, zowawa pang'ono, zosungunuka. m'madzi komanso opanda mtundu.

2. Quicklime desiccant
Chigawo chake chachikulu ndi calcium oxide, yomwe imathandizira kuyamwa kwamadzi ndi mankhwala, imatha kuuma mpweya wosalowerera kapena wamchere, ndipo ndi yosasinthika.Chofala kwambiri ndikugwiritsa ntchito ma desiccants oterowo mu "mikate ya chisanu".Kuonjezera apo, amagwiritsidwanso ntchito nthawi zambiri pazida zamagetsi, zikopa, zovala, nsapato, tiyi, ndi zina zotero, koma popeza quicklime ndi alkali yamphamvu, imakhala yowonongeka kwambiri, ndipo pamene maso a okalamba ndi ana avulala, amavulala. pang'onopang'ono kukhala Anathetsedwa.
Desiccant wakuthupi:
silika gel desiccant
Chigawo chachikulu ndi silika, chomwe chimapangidwa ndi granulated kapena mikanda ndi mchere wachilengedwe.Monga desiccant, mawonekedwe ake a microporous ali ndi chiyanjano chabwino cha mamolekyu amadzi.Malo abwino kwambiri amayamwa chinyezi cha gel osakaniza ndi kutentha kwa chipinda (20 ~ 32 ° C) ndi chinyezi chambiri (60 ~ 90%), chomwe chingachepetse chinyezi cha chilengedwe kufika pafupifupi 40%.Silica gel desiccant imakhala ndi mawonekedwe opanda mtundu, osanunkhiza komanso opanda poizoni, osasunthika pamapangidwe amankhwala komanso kuchita bwino pamayamwidwe a chinyezi.Amagwiritsidwa ntchito kwambiri mu zida, zida, zikopa, katundu, chakudya, nsalu, zida ndi zina zotero.Ntchito yake ndi kuwongolera chinyezi cha chilengedwe panthawi yosungira ndi kuyendetsa kuti tipewe chinyezi, mildew ndi dzimbiri.Ndizofunikira kudziwa kuti iyi ndiye desiccant yokhayo yovomerezeka ku EU.
3. Dongo (montmorillonite) desiccant
Mawonekedwe owoneka ngati mpira wotuwa, oyenera kwambiri kuyamwa chinyezi m'malo otsatirawa pansi pa 50 °C.Ngati kutentha kuli pamwamba pa 50 ° C, mlingo wa "kumasulidwa kwa madzi" wa dongo ndi waukulu kuposa "mayamwidwe amadzi".Koma ubwino wa dongo ndi wotchipa.Desiccant imagwiritsidwa ntchito kwambiri pazachipatala, kulongedza chakudya, zida zamagetsi, zida zamagetsi, zida zankhondo ndi zinthu za anthu wamba.Chifukwa amagwiritsa koyera zachilengedwe zopangira bentonite, ali ndi makhalidwe amphamvu adsorption, kudya adsorption, colorless, sanali poizoni, palibe kuipitsidwa kwa chilengedwe ndipo palibe dzimbiri kukhudzana.Ndizokonda zachilengedwe, zopanda mtundu komanso zopanda poizoni, siziwononga thupi la munthu, komanso zimakhala ndi ntchito yabwino yotsatsa.Ntchito ya Adsorption, static dehumidification ndi kuchotsa fungo.