Ubuchwepheshe bangemuva
Impuphu yerabha ephinde ihlukaniswe kabusha iyimpuphu emhlophe eqinile ecutshungulwa ngokufafaza nokomisa i-latex ekhethekile. Isetshenziswa kakhulu njengesithasiselo esibalulekile "se-mortar exutshwe kayinkulungwane" kanye nezinye izithasiselo ze-mortar exutshwe kayinkulungwane zezinto zokwakha zobunjiniyela bokufudumeza udonga lwangaphandle. . Impuphu ye-latex evame ukusetshenziswa e-refractory iyi-copolymer ye-vinyl acetate, okuyimpuphu emhlophe engashelela ngokukhululeka futhi ingahlakazeka kahle emanzini ukuze yakhe i-emulsion ezinzile enokusebenza okufanayo ne-latex yokuqala. Njengezinto ezingeziwe ezibalulekile emikhiqizweni ye-mortar exutshwe kayinkulungwane, i-latex powder ephinde ihlakazeke idlala indima ebalulekile ku-mortar exutshwe kayinkulungwane. Ingathuthukisa amandla e-bond kanye nokuhlangana kwezinto. Ithuthukisa amandla okugoba okunwebeka kanye namandla okuguquguquka kwezinto. Ithuthukisa ukumelana nokuqandisa kwe-frozen-thaw kwezinto. Ithuthukisa ukumelana nesimo sezulu, ukuqina, ukumelana nokuguguleka kwezinto. Ithuthukisa ukungangeni kwamanzi kwezinto futhi inciphise ukumuncwa kwamanzi. Ithuthukisa ukusebenza kahle futhi inciphise ukushwabana kwezinto. Ingavimbela ngempumelelo ukuqhekeka. (I) Ithuthukisa amandla e-bond kanye nokuhlangana
Emikhiqizweni yodaka lukasimende owomile, kuyadingeka kakhulu ukwengeza i-rubber powder ephinde ihlakazeke. Kusobala kakhulu ukuthuthukisa amandla okubopha kanye nokuhlangana kwezinto. Lokhu kungenxa yokungena kwezinhlayiya ze-polymer kuma-pores nama-capillary e-matrix kasimende, kanye nomphumela wamandla amahle okubambisana ngemva kokumanziswa nge-simende. Ngenxa yokunamathela okuhle kwe-polymer resin ngokwayo, ingathuthukisa ukunamathela kwemikhiqizo yodaka lukasimende kuma-substrate, ikakhulukazi ukubopha kwama-inorganic binders afana ne-simende kuma-organic substrate afana nokhuni, i-fiber, i-PWC, kanye ne-PS. Ukuthuthukiswa kokusebenza okubi kunomphumela osobala kakhulu.
Ukugoba okuthuthukisiwe nokumelana nokucindezeleka
Esakhiweni esiqinile esakhiwe ngemva kokuba udoti wesamente usumanzi, ifilimu ye-polymer iyanwebeka futhi iqinile, futhi isebenza njengenhlanganisela ehambayo phakathi kwezinhlayiya zodoti wesamente, engamelana nemithwalo ephezulu yokuguquguquka futhi inciphise ukucindezeleka. Ukumelana okuthuthukisiwe kokuthambekela nokugoba
Thuthukisa ukumelana nomthelela
Impuphu ye-latex ephinde ihlakazeke iyi-resin ye-thermoplastic. Ifilimu ethambile embozwe ebusweni bezinhlayiya ze-mortar ingamunca umthelela wamandla angaphandle futhi iphumule ngaphandle kokuphuka, ngaleyo ndlela ithuthukise ukumelana nomthelela we-mortar.
Thuthukisa ukungezwani kwamanzi futhi unciphise ukumuncwa kwamanzi
Ukwengeza i-latex powder ephinde ihlakazeke kungathuthukisa isakhiwo esincane se-cement mortar. I-polymer yayo yakha inethiwekhi engenakuguqulwa ngesikhathi senqubo yokumanzisa i-cement, ivala i-capillary ku-cement gel, ivimbele ukumuncwa kwamanzi, ivimbele ukungena kwamanzi, futhi ithuthukise ukungangeni kwamanzi.
Thuthukisa ukumelana nokuguguleka nokuqina
Ukwengeza i-powder yerabha ye-휘 ephinde ihlakazeke kungandisa ukuqina phakathi kwezinhlayiya ze-mortar yesimende kanye nefilimu ye-polymer. Ukuthuthukiswa kwamandla ahlangene ngokufanayo kuthuthukisa ikhono le-mortar lokubekezelela ukucindezeleka kokunqunywa, kunciphisa izinga lokuguguleka, kuthuthukisa ukumelana nokuguguleka, futhi kwandise impilo yenkonzo ye-mortar.
Thuthukisa ukuzinza kokuqandisa nokuncibilikisa futhi uvimbele ngempumelelo ukuqhekeka kwezinto
Impuphu ye-latex ephinde ihlakazeke, umphumela wepulasitiki we-resin yayo ye-thermoplastic unganqoba umonakalo obangelwa ukwanda kokushisa kanye nokufinyela kwezinto ze-mortar ye-samente okubangelwa ukushintsha komehluko wokushisa. Ukunqoba ukushiyeka kwe-mortar ye-samente elula, njengokuncipha okukhulu okomile kanye nokuqhekeka okulula, kungenza izinto zibe nezimo eziguquguqukayo, ngaleyo ndlela kuthuthukiswe ukuzinza kwesikhathi eside kwezinto. Kodwa-ke, kunezinkinga ezithile enqubweni yokukhiqizwa kwempuphu ye-latex ephinde ihlakazeke kubuciko bangaphambilini, okuholela ekutheni izinhlayiya ze-latex azifani futhi azilingani ngokwanele, futhi ukuhlangana kuvamile ukwenzeka ngesikhathi sokukhiqizwa, ukuthuthwa kanye nokugcinwa. Ngaleyo ndlela kuthinta umphumela wokusetshenziswa kwayo.
Le nqubo ingatholakala ngezixazululo zobuchwepheshe ezilandelayo: inqubo yokukhiqiza i-latex powder ehlakazekile ephinde ihlakazeke, izinto ezilandelayo zakhiwe ngokwesilinganiso se-polymer emulsion esinamathiselwe esingu-72-85%; i-colloid evikelayo engu-4-9%; i-ejenti yokukhulula engu-11-15%; izithasiselo ezisebenzayo ezingu-0-5%; ezikhiqizwa yinqubo elandelayo.
a, ukulungiswa kwe-colloid evikelayo: eketheni yokusabela, i-colloid evikelayo yenani lokuhlanganisa ayixutshwa namanzi futhi ifudunyezwe ukuze iguqulwe ibe yiglue, bese kufakwa i-defoamer, ifudunyezwe futhi igcinwe ifudumele ukuze kwakhiwe i-colloid evikelayo ebonakalayo, ukuze i-viscosity ifinyelele ku-2500as, iqine Okuqukethwe kufinyelela ku-19.5-20.5%.
b. Ukulungiselela ukuhlakazeka: faka i-colloid evikelayo elungisiwe eketheni lokulungiselela, bese ufaka i-polymer emulsion yenani lokuhlanganisa, uhlanganise ngokulinganayo, bese ufaka i-defoamer bese ufaka amanzi ukuze ulungise i-viscosity ibe ngu-70-200Mas, bese okuqukethwe okuqinile kufinyelela ku-39%-42%, kufudumale kufike ku-50-55°
C, ukusetshenziswa;
C, ukomisa ngesifutho samafu: vula umbhoshongo wokomisa ngesifutho samafu, lapho izinga lokushisa lokungena kokudla phezulu kombhoshongo wokomisa ngefutha lishiswa kufika ku-140-150 DEG C, ukuhlakazeka okulungiselelwe kulethwa endaweni yokungena kokudla phezulu kombhoshongo wokomisa ngepompo yesikulufu. Ephongweni lokuphakelayo, uketshezi lokuhlakazeka lufakwa kuma-micro-droplets anobubanzi bamaconsi angu-10-100 microns ngediski ye-centrifugal atomization yesivinini esiphezulu ephongweni lokuphakelayo. Ngesikhathi esifanayo, amaconsi amancane ashiswa ngokushesha ngokuhamba komoya okushisa okuphezulu, futhi ngesikhathi esifanayo, i-ejenti yokukhulula ingezwa ekuhambeni komoya okushisa okuphezulu. , lapho amaconsi amancane eshiswa ukuze kukhiqizwe i-viscosity, i-ejenti yokukhulula inamathela kumaconsi amancane ngesikhathi, bese amanzi kumaconsi amancane eshiswa ngokushesha abe omile ngokuhamba komoya okushisa okuphezulu ukuze kwakheke ingxube eqinile negesi;
d, ukupholisa nokuhlukaniswa: gcina izinga lokushisa lomoya ophumayo we-spray drying tower air outlet ku-79°C-81°C, bese ingxube eqinile negesi ithunyelwa ngokushesha isuka endaweni yomoya ephansi kombhoshongo wokomisa, bese ingeniswa kwisihlungi esikhulu sesikhwama ngemva kokupholisa. Impuphu ekugelezeni komoya iyahlukaniswa bese impuphu ehlukanisiwe ihlukaniswa futhi ihlungwe ukuze kutholakale umkhiqizo oqediwe wempuphu ye-latex ephinde yahlakazwa. Izifanekiso Ezithile Engeza inani elithile lamanzi ahlanzekile ngokulingana ne-reactor ehlanzekile, phakamisa izinga lokushisa libe cishe ngu-50°C, vula indlela yokuxuba, engeza i-colloid powder evikelayo ngokwe-25% yenani lamanzi afakwe ku-reactor, futhi inqubo yokwengeza kufanele ihambe kancane. Faka ukuze uvimbele impuphu ukuthi ingahlangani emanzini. Ungayengezi odongeni oluseceleni lwe-reactor. Ngemva kokuthi ukwengeza sekuqediwe, engeza i-defoamer elingana no-1% wenani eliphelele. Kunconywa ukusebenzisa i-defoamer esekelwe ku-silicone. Mboza imbobo yokudla bese ushisa kufika ku-95°C. Uma ivalwe nge-insulation ihora eli-1, uketshezi oluse-reactor kufanele lwenziwe lube yi-glue ebonakalayo egobile, ngaphandle kwezinhlayiya ezimhlophe, isampula, i-viscosity yokuhlola kanye nokuqukethwe okuqinile, okudinga i-viscosity ukufinyelela cishe ku-2500as, kanye nokuqukethwe okuqinile ukufinyelela ku-19.5 ~ 20.5%. Faka i-colloid evikelayo elungisiwe eketheni lokuxuba, bese ufaka i-polymer emulsion ngokulingana, hlanganisa i-colloid evikelayo kanye ne-emulsion ngokulinganayo, bese ufaka i-defoamer ngokufanele, ngokuvamile elingana cishe no-0.1% wenani eliphelele, futhi i-defoamer kufanele isetshenziswe nguwe.
I-ejenti yokugwedla, bese ufaka amanzi ukuze ulungise i-viscosity ibe ngama-pas angu-70-200, kanye nokuqukethwe okuqinile kube ngu-39%-42%. Phakamisa izinga lokushisa libe ngu-5055C. Ukuhlolwa kokuthatha amasampula, sekulungele ukusetshenziswa.
Amanzi asemathonsini azomiswa ngokushesha ukugeleza komoya okushisa okuphezulu, bese ingxube eqinile negesi ikhishwa ngokushesha embhoshongweni wokomisa, igcine izinga lokushisa lomoya endaweni yokukhipha umoya engezansi yemishini yokomisa ku-79 ° C -81 ° Co. Ingxube eqinile negesi iqondiswa kusuka emishini yokomisa. Ngemva kokuhamba, engeza umoya owomile ongu-5°C ongenamswakama ukuze uphole, bese kuthi ukugeleza komoya okuqukethe i-powder kufakwe kusihlungi esikhulu sesikhwama, bese i-powder ekugelezeni komoya ihlukaniswe ngezindlela ezimbili zokuhlukaniswa kwesiphepho kanye nokuhlukaniswa kokuhlunga. , I-powder ehlukanisiwe ihlukaniswa futhi ihlungwe ukuze kutholakale iziqhingi ze-latex powder eziphinde zihlakazeke.
Thutha u-1,000 kg woketshezi oluhlakazekayo olunokuqukethwe okuqinile okungu-42% uye embhoshongweni wokomisa ngengcindezi ethile, bese ufaka u-51 kg we-ejenti yokukhulula ngokwendlela engenhla ngesikhathi esifanayo, womise ngokufafaza bese uhlukanisa okuqinile negesi, bese uthola umphumela wempuphu ongu-461 kg ngokuqina okufanele.
Isikhathi sokuthunyelwe: Feb-27-2023