Ukuhlanganiswa kwe-Ultrasonic yeSamente Namathisela Ukukhonjiswa

Ukuhlanganiswa kwe-ultrasonic ye-samente unamathela inikeza izinzuzo ezinkulu ze-precast ukwakha, izitshalo ezomile nezitshalo. Lokhu kufaka phakathi: Isikhathi esincane sokuqala nesethi yokugcina, isilinganiso esincane se-superplasticizer, i-hydration esheshayo neyengeziwe futhi namandla amakhulu okucindezela.

Ubuchwepheshe bokuhlanganiswa kobukhonkolo bendabuko, njenge “ekuhambeni komgwaqo” noma ama mixers ojikelezayo ahlinzeka isenzo sokuxuba okwanele ukusabalalisa ama-agglomerate ama-particle samakhemikhali nezinye izinto zokwakha, ezifana nomlotha we-fly noma Silica. Ngenkathi izinhlayiya zangaphandle zalezi zinhlaka zivezwa emanzini, izindawo eziphakathi kwezinhlayiya zihlala zomile. Lokhu kubangela ukuthutha okuncane futhi okungaphelele.

Izinzuzo ze-Ultrasonic Mixing Technology

Ukusabalalisa kwe-Ultrasonic ubuchwepheshe obuphambili kakhulu ukukhipha amandla nokusabalalisa ubukhulu be-micron nobukhulu be-nano-usayizi eziketshezi. Ukuxubana kwe-Ultrasonic kusebenzisa amandla okugcoba ama-cavitational asebenza kahle ekuxubeni kwezinto ezisezingeni elihle kunezingxube ze-Rotary mixers nama-rotor-stator mixers. Sensimu, Silica, fly ash, pigments noma I-CNTs, ukusebenza kwalezi zinto kukhuliswa kakhulu ultrasonic nizihlakaza, njengoba kuthuthukiswa ukusatshalaliswa kwezinhlayiyana kanye nokuxhumana namanzi.
Phakathi ne-hydration – ukusabela kwamakhementi ngamanzi – Izigaba ze-C-S-H zakha izakhiwo ezinjengezinaliti. Izithombe ezansi ngezansi zibonisa ukuthi isakhiwo se-microstructure samamenti sinamathisela ngemva kwama-5hrs we-hydration. Ku-ultrasonicated cement unamathele, izigaba ze-C-S-H ziba ngu-500nm ubude obude, kuyilapho unamathiselwe ongabonisiwe, izigaba ze-C-S-H zizungeze 100nm, kuphela.

Hielscher's ultrasonic dispersion technology improves cement precasts.

Isicelo solwazi




Qaphela kwethu Inqubomgomo yobumfihlo.


Microstructure of Cement Namathisela Emva 5hrs Isikhathi Hydration
nge processing ultrasonic
ngaphandle kokucubungula kwe-ultrasonic
Microstructure of Cement Namathisela emva kokucubungula ultrasonic kanye 5hrs I-Microstructure yeSamente Namathisela ngaphandle kokucubungula kwe-ultrasonic no-5hrs
I-Portland Cement Namathisela (i-CEM I42.5R), C. Rössler (2009) – I-Bauhaus University Weimar

Ukuhlanganiswa kwe-ultrasonic cavitational kuholela ukukhula okusheshayo kwezigaba ze-C-S-H.

Ukushisa kwe-Hydration

Umthelela We-Power Ultrasonication (i-PUS) Nge-Time-Temperature Curve ye-Cement I-Pastes

Amandla Okucindezelayo

Umthelela We-Power Ultrasonication (i-PUS) ku-Compressional Amandla ama-Prisms we-Mortar

I-Ultrasound Pulse Velocity

Umthelela we-Power Ultrasonication (PUS) ku-Ultrasonic Pulse Velocity ye-Hydrating Cement Pastes

C. Rössler (2009)

Ukukhula kwama-C-S-H ama-correlates ekushiseni ekunamathiseni kwe-samente ngenkathi ye-hydration (chofoza kwesithombe esifanele). In the ultrasonically uhlanganiswe cement unamathisele, the I-hydration iqala cishe. ihora elilodwa ngaphambili. I-hydration yangaphambili ihambisana nokukhula kwangaphambili kwamandla okucindezela (chofoza isithombe esifanele). Isivinini se-hydration esandayo singalinganiswa yi-ultrasound pulse velocity, futhi.

Ikakhulukazi ngokukhonjiswa kwe-precast ne-drycast, lokhu kuholela esikhathini esincane kakhulu kuze kufike ukhonkolo okhonjiwe. Izifundo zeYunivesithi yaseBauhaus (eJalimane) wabonisa lokhu okulandelayo ukunciphisa izikhathi ezibekiwe.

Izikhombo Ukuhluka. Amandla we-Ultrasonics
Setha kuqala 5 hr 15 iminithi -29% 3 hr 45 min
Isethi Yokugcina 6 hr 45 min -33% 4 hr 30 min
Slump 122 mm (4.8″) + 30% 158 mm (6.2″)

Enye inzuzo eyithakazelisayo yokuxuba i-ultrasonic yithonya ku-fluidity. Njengoba kuboniswe etafuleni ngenhla, i ukunyuka kwenyuka ngo-approx. 30%. Lokhu kungavumela ukunciphisa umthamo wezinsika eziphezulu.

Ukuhlanganiswa kwenqubo ye-Ultrasonic Mixers

I-Hielscher inikeza abaxube be-ultrasonic ukuhlakazeka okuphumelelayo kwe-samente, Silica, fly ash, pigments noma I-CNTs. Okokuqala, noma yikuphi ukwaziswa okumile kumele kuhanjiswe ngamanzi ukuze kuhlanganiswe okuphezulu – okwamanje unamathele. I-mixer i-Hielscher ultrasonic, i-deaggomeroma futhi ihlakazeka izinhlayiya ezisetshenziswayo cavitational ishear. Ngenxa yalokho, yonke indawo ye-particle ngayinye ivuliwe ngokugcwele emanzini.

Ukucubungula kwe-Ultrasonic kwe-Cement Namathisela

Endabeni yokunamathiswa kwe-samente, i-hydration iqala ngemuva kokucubungula kwe-ultrasonic. Ngakho-ke, i-mixer ye-Hielscher ultrasonic kufanele isetshenziswe ngaphakathi, njengoba ukunamathiswa kwe-samente kungenakulondolozwa isikhathi eside. Umdwebo ohleliwe ngezansi ubonisa inqubo. Esikhathini esilandelayo, inqwaba, njengesihlabathi noma igravel ingeziwe futhi ixubene nokunamathiswa kwe-samente. Njengoba izinhlayiya ze-cement sezivele zihlakazekile ngalesosikhathi, ukunamathiswa kwe-samente kufana kahle ne-aggregate. Ikhonkrithi isilungele ukugcwaliswa kwezibunjwa ze-precast noma zokuhamba. I-tank break-up eduze kwe-mixer ultrasonic ingasetshenziselwa ukucubungula ngokuqhubekayo uma kwenzeka isidingo sokukhonkolo esingaguquki.

Ukuhlanganiswa kwe-ultrasonic ehambelanayo yamakhemikhali okukhiqizwa kwe-precast

Ukuxoshwa kwe-Ultrasonic kwe-Silica, i-Fly Ash ne-Nanomaterials

Ukuhlanganiswa kwe-ultrasonic ehambelanayo yamakhemikhali okukhiqizwa kwe-precastUkuhlakazeka Silica, ukushayela umlotha, ukuguqulwa kwamanye ama-pigment noma amanye ama-nanomaterials, njenge ngama-carbon nanotubes, kudinga amanye amazinga okusebenza kanye namazinga kagesi. Ngenxa yalesi sizathu sincoma umxube ohlukile we-ultrasonic ukukhiqiza uhlaka oluhlakazekile oluhlanganisiwe olwengezwa ekakheni lokukhonkolo. Sicela uchofoze ku-graphic above ngenhloso yokudweba kwesimiso sale nqubo.

Ukukhonjwa okulungele ukusetshenziswaImishini yokuxuba i-ultrasonic edingekayo ukuze iphakanyiswe ingahle ilandelwe ukuhlola okulinganiselwe ngokulingana nomshayeli we-pilot Isethaphu ye-UIP1000hd (1,000 watts). Ithebula elingezansi libonisa izincomo zedivayisi jikelele ngokuya ngevolumu ye-batch noma izinga lokugeleza kwe-samente unamathisele ukucutshungulwa.

Iqoqwana Ivolumu flow Rate Amadivayisi ezinconyiwe
0.1 kuya ku-10L 0.2 kuya ku-2L / iminithi I-UIP1000hd, I-UIP1500hd
10 kuya ku-50L 2 kuya ku-10L / iminithi UIP4000
na 10 kuya ku-50L / iminithi UIP16000
na sikhulu yinhlanganisela UIP16000

Njengoba kufika ku-16kW yamandla wokuxuba we-ultrasonic ngedivaysi eyodwa, i-Hielscher inikeza amandla okucubungula adingekayo ekusebenzeni okuphezulu kwevolumu. Lolu buchwepheshe buyi kulula ukuhlola futhi izilinganiso eziphezulu.

Cela ulwazi oluthe xaxa

Sicela usebenzise ifomu elingezansi, uma ufisa ukucela ulwazi oluthe xaxa mayelana ne-homogenization yama-ultrasonic. Sizojabula ukukunikeza uhlelo lwe-ultrasonic ukuhlangabezana nezidingo zakho.









Sicela uqaphele wethu Inqubomgomo yobumfihlo.


I-ultrasonic disperser ithuthukisa ukucubungula nekhwalithi yesimali.

I-Ultrasonic Inline Mixer (I-UIP1000hdT)

Izincwadi / Izinkomba