I kī ngā kaihanga paninga ko ngā paninga wairewa-wai e pā ana ki ngā paninga i hangaia mai i ngā emulsion hei rauemi hanga-kiriata, e whakarewaina ai ngā kapia whakarewa-wairewa ki roto i ngā whakarewa waro, kātahi, mā te āwhina o ngā emulsifier, ka mararahia ngā kapia ki roto i te wai mā te whakaoho miihini kaha hei hanga i ngā emulsion, e kiia nei ko te post-emulsion, ka taea te waimeha ki te wai i te wā hanga.
Kāore e taea te kī he peita rapa te peita i hangaia mā te tāpiri i tētahi iti o te wairewa ki tētahi kapia wairewa-wai. Ina hoki, kāore e taea te kī he peita rapa te peita whakangawari-wai, engari e ai ki ngā tikanga, he peita rapa anō hoki.
Ngā painga me ngā ngoikoretanga o ngā paninga wai
1. He nui ngā rauemi ka penapenahia mā te whakamahi i te wai hei whakarewa. Ka karohia ngā tūponotanga ahi i te wā hanga, ā, ka whakaitihia te parahanga o te hau. He iti noa te nui o te whakarewa waro iti-paitini e whakamahia ana, ā, ka pai ake te āhua o te taiao mahi.
2. Ko te whakarewa waro o te peita wai-noa kei waenga i te 10% me te 15%, engari ko te peita hiko-pōrohe katote o nāianei kua whakaitihia ki raro iho i te 1.2%, he pānga mārama ki te whakaiti i te parahanga me te penapena rauemi.
3. He ngoikore te pumau o te marara ki te kaha miihini kaha. Ina rerekē te tere o te rere i roto i te paipa kawe, ka pēhia ngā matūriki marara hei matūriki totoka, ka puta he poka ki runga i te kiriata paninga. Me noho pai te paipa kawe, ā, kia kore he hapa i roto i te pakitara o te paipa.
4. He tino waikura ki ngā taputapu paninga. E hiahiatia ana he arai ātete-waikura, he rauemi kowiri tira rānei, ā, he nui te utu mō ngā taputapu. Ka taea e te waikura me te whakarewa o te paipa kawe te whakatō me te pakaru o ngā matūriki marara ki runga i te kiriata paninga, nō reira ka whakamahia hoki ngā paipa kowiri tira.
Te whakaotinga me te tikanga hanga a ngā kaihanga peita
1. Whakatikatikahia te matotoru o te peita ki te wai māori, ā, inehia te matotoru ki te whakamahi i te mita waikeri Tu-4. Ko te matotoru e tika ana ko te 2 ki te 30 hēkona. I kī te kaihanga peita, ki te kore he mita waikeri, ka taea e koe te whakamahi i te tikanga tirohanga hei whakaoho i te peita ki te tokotoko rino, whakaohokia kia 20 cm te teitei, kātahi ka tū ki te tirotiro.
2. Me whakahaere te pēhanga hau i te 0.3-0.4 MPa me te 3-4 kgf/cm2. Mēnā he iti rawa te pēhanga, kāore e pai te whakakorikori o te peita, ā, ka pakaru te mata. Mēnā he nui rawa te pēhanga, ka ngāwari te totohu, ā, ka nui rawa te kohu peita, ka kore e moumou rauemi, ka pā ki te hauora o ngā kaimahi hanga.
3. Ko te tawhiti i waenganui i te pūwero me te mata o te mea he 300-400 mm, ā, he ngāwari te piko mēnā he tata rawa. Ki te tawhiti rawa, ka kore e ōrite te kohu peita, ā, ka puta he poka. Ā, ki te tawhiti te pūwero i te mata o te mea, ka horapa te kohu peita ki te huarahi, ka waiho hei para. I kī te kaihanga peita ka taea te whakatau i te tawhiti motuhake i runga i te momo peita, te matotoru me te pēhanga hau.
4. Ka taea e te pū rehu te neke ake, te neke iho, te neke maui me te neke matau, ā, ka taea te oma ōrite i te tere o te 10-12 m/min. Me tika, me anga tika ki te mata o te mea. Ina rehuhia ana ki ngā taha e rua o te mata o te mea, me tuku wawe te ringa e kukume ana i te pū rehu. Mā tēnei ka whakaiti i te kohu peita.
Wā tuku: Hanuere-18-2024