Posankha zopangira ma surfactants kuti muyeretse kapena kukonza mapulogalamu, thovu ndi gawo lofunikira. Mwachitsanzo, m'makina otsuka pamanja - monga zinthu zosamalira galimoto kapena kutsuka mbale m'manja - kuchuluka kwa thovu nthawi zambiri kumakhala kofunika kwambiri. Izi zili choncho chifukwa kukhalapo kwa thovu lokhazikika kwambiri kumasonyeza kuti surfactant yatsegulidwa ndikugwira ntchito yake yoyeretsa. Mosiyana ndi izi, pazinthu zambiri zoyeretsa ndi kukonza mafakitale, thovu limatha kusokoneza zochita zina zamakina ndikulepheretsa magwiridwe antchito onse. Pazifukwa izi, opanga ma formula amafunika kugwiritsa ntchito zopangira thovu zochepa kuti apereke zomwe akufuna kuyeretsa ndikuwongolera kuchuluka kwa thovu. Nkhaniyi ikufuna kudziwitsa anthu omwe ali ndi thovu lochepa, zomwe zimapatsa poyambira kusankha opangira ma surfactant pamapulogalamu oyeretsa opanda thovu.
Mapulogalamu a Low-Foam
Foam imapangidwa ndi chipwirikiti pamawonekedwe apamlengalenga. Chifukwa chake, kuchitapo kanthu koyeretsa komwe kumaphatikizapo chipwirikiti chachikulu, kusakanikirana kwameta ubweya wambiri, kapena kupopera mbewu mankhwalawa pamakina nthawi zambiri kumafuna zida zowongolera thovu zoyenera. Zitsanzo ndi izi: kuchapa zigawo, kuyeretsa CIP (kuyeretsa m'malo), kuchapa pansi ndi makina, kuchapa zovala zamakampani ndi zamalonda, zamadzimadzi opangira zitsulo, zotsukira mbale, kuyeretsa zakudya ndi zakumwa, ndi zina zambiri.
Kuwunika kwa Low-Foam Surfactants
Kusankhidwa kwa ma surfactants - kapena kuphatikiza kwa surfactants - powongolera thovu kumayamba ndi kusanthula miyeso ya thovu. Miyezo ya thovu imaperekedwa ndi opanga ma surfactant muzolemba zawo zamaluso. Kuti muyezedwe chithovu chodalirika, ma dataseti akuyenera kutengera miyezo yovomerezeka ya thovu.
Mayesero awiri odziwika bwino komanso odalirika a thovu ndi mayeso a thovu a Ross-Miles ndi kuyesa kwa thovu lapamwamba kwambiri.
•Mayeso a Foam a Ross-Miles , amawunika momwe chithovu chimayambira (chithovu chonyezimira) ndi kukhazikika kwa thovu pansi pa chipwirikiti chochepa m'madzi. Mayesowo angaphatikizepo kuwerengera kwa thovu loyambirira, ndikutsatiridwa ndi chithovu pambuyo pa mphindi ziwiri. Itha kuchitidwanso pamitundu yosiyanasiyana ya surfactant (mwachitsanzo, 0.1% ndi 1%) ndi milingo ya pH. Opanga ambiri omwe akufuna kuwongolera thovu lotsika amangoyang'ana muyeso woyambira wa thovu.
• High-Shear Test (onani ASTM D3519-88).
Mayesowa amafanizira miyeso ya thovu pansi pamikhalidwe yodetsedwa komanso yosasunthika. Mayeso ometa ubweya wambiri amafananizanso kutalika kwa thovu koyambirira ndi kutalika kwa thovu pambuyo pa mphindi 5.
Kutengera njira zilizonse zoyesererazi, angapo opitilira muyeso pamsika amakwaniritsa zofunikira zopangira thovu lochepa. Komabe, mosasamala kanthu za njira yoyesera thovu yomwe yasankhidwa, opangira thovu lotsika ayeneranso kukhala ndi zina zofunika zakuthupi komanso magwiridwe antchito. Kutengera ndi momwe angagwiritsire ntchito komanso malo oyeretsera, zinthu zina zofunika pakusankha surfactant zingaphatikizepo:
•Kuyeretsa magwiridwe antchito
•Makhalidwe, thanzi, ndi chitetezo (EHS)
•Kutulutsa nthaka
•Kutentha kosiyanasiyana (ie, zida zina za thovu lochepa zimagwira ntchito pakatentha kwambiri)
•Kusavuta kupanga komanso kuyanjana ndi zosakaniza zina
• Kukhazikika kwa peroxide
Kwa opanga ma formula, kulinganiza zinthuzi ndi mlingo wofunikira wa kuwongolera thovu pakugwiritsa ntchito ndikofunikira. Kuti mukwaniritse izi, nthawi zambiri pamafunika kuphatikiza zida zosiyana siyana kuti zikwaniritse zosowa za thovu ndi magwiridwe antchito - kapena kusankha zopangira thovu zotsika kapena zapakatikati zomwe zimagwira ntchito zambiri.
Nthawi yotumiza: Sep-11-2025