Ndi kupita patsogolo kosalekeza kwa mafakitale ndi kusintha kwa ukadaulo, kudzera mu kuyambitsa makina owathira matonelo, makina opatsirana mapangidwe apangidwa kwambiri m'dziko langa laposachedwa. Makina opopera matope ndi osiyana matope, omwe amafunikira magwiridwe antchito ambiri, madzi oyenera komanso ogwiritsa ntchito. Nthawi zambiri, hydroxypropyl methylcellulose imawonjezedwa ndi matope, omwe pa cellulose ether (hpmc) ndi omwe amagwiritsidwa ntchito kwambiri. Nchito zazikulu za hydroxypypyl hpmc mu matope ndi awa: Kukula ndikusintha, kusintha chinsinsi, ndi kusintha kwa madzi osungitsa madzi. Komabe, zoperewera za HPMC sizinganyalanyazidwe. HPMC ili ndi mphamvu zochokera pa mpweya, zomwe zimapangitsa kutsitsidwa kwamkati komanso kuchepetsa kwambiri matope. Shandoong Chenbang Vomer Co., ltd. .
1. Kuyesa
1.1 zopangira
Simenti: Zopezeka pa P.0 42.5 simenti, zomwe zinali zosungunuka komanso zopondera ndi 6.9 ndi 48.2. mchenga: Chengde chabwino Mtsinje wa Mtsinje, 40-100 ma mesh; cellulose ether: zopangidwa ndi shandong Chenbang Diecy Co., Ltdroxypropyl Etherlllulose etherllulose etherllulose etherllulose etherllulose etherllulose etherllulose etherllulose etherllulose etherllulose etherllulose etherllulose etherllulose etherllulose etherllulose etherllulose etherllulose etherllulose etherllulose etherllulose etherllulose etherllulose etherllulose etherllulose etherllulose etherllulose a meth Madzi: Madzi oyera ampopi.
1.2 Njira Yoyesera
Malinga ndi JGJ / TH.11 Poyesera izi, kuchuluka kwa mchenga-wam'mansi kunakhazikitsidwa pa 1: 5, 2 + 2) mm, ndipo ma cellulose ether anathamangitsidwa kunja, ndipo ndalama zophatikizika zidakhazikitsidwa pa simenti. Zoyambira za matope monga kachulukidwe kakang'ono, mizere ya mpweya, kusungidwa kwamadzi, komanso kusasinthika kumayesedwa ndi njira zopangira matope. Kukonzekera, kusinthika kwamphamvu kwamphamvu kwa zonena za fanizo kunachitika molingana ndi GB / T 16671-1999 "Njira zoyesera mphamvu ya simenti yokha (Iso)". Dongosolo la mphutsi limayesedwa ndi corcury potosimetry. Chitsanzo cha porculimer porcuter chinali ku Autopore 9500, ndipo malo oyezera anali 5.5 NM-360 μm. Mayeso onse anayi a mayeso adachitika. Ririo ya Smentamey-Samimenti inali 1: 5, mamasukidwe a HPMC anali 100 S, S.2%, 0.2%, 0,3% (manambala ndi).
2. Zotsatira ndi kusanthula
2.1 zotsatira za hpmc pamadzi osunga matope a simenti
Kusungidwa kwamadzi kumatanthauza kuthekera kwa matope kuti asunge madzi. Mu makina adathira matope, kuwonjezera ma eleluse ether engely amatha kusunga madzi, kuchepetsa magazi, ndikukwaniritsa zofunikira zazinthu zokwanira za simenti. Zotsatira za hpmc pamadzi posungira matope.
Ndi kuchuluka kwa zomwe zili mu HPMC, malo osungira madzi a matope amawonjezeka pang'onopang'ono. Mapulani a hydroxypropyll methylcellulose ether evisluuties a 100, 150 ndi 200 pa.S ali chimodzimodzi. Zomwe zili ndi 0.05% -0.15%, kuchuluka kwa madziwo kumachuluka, ndipo zikakhala kuti zomwe zili ndi 0.15%, kuchuluka kwa madzi ndizambiri kuposa 93%. ; Kuchuluka kwa grits kumapitilira 0,20%, zomwe zimachitika kuti zitheke zosunga madzi zimakhala lathyathyathya, zomwe zikuwonetsa kuti kuchuluka kwa HPMC kuli pafupi. Kukopa kwa kuchuluka kwa HPMC yokhala ndi mafayilo 40 pa.S pamlingo wamadzi wosunga madzi ndi mzere wowongoka. Ndalamazo zikakhala zazikulu kuposa 0.15%, kusunga matope kwa matope ndi otsika kwambiri kuposa momwe ena atatu a HPMC aliri. Amakhulupirira kuti madzi osunga madzi a ether ether ether molecle Colecle Compound, kotero kuti madzi aulere amagwera madzi omangidwa, motero amasewera madzi abwino; Amakhulupiriranso kuti kuphatikizika pakati pa mamolekyulu amadzi ndi ma cellulose ethel ma unyolo amalola unyolo wa ethel ether ether ethertive unyolo wa macromes, potero kukonza gulu la simenti ya simenti. Kusungidwa kwamadzi abwino kwambiri kumapangitsa kuti matonthowo akhale osavuta, osasakaniza kusakaniza bwino, ndikuchepetsa kuvala kwamakina ndikuchepetsa moyo wa makina onunkhira.
2.2 Zotsatira za hydroxypropyl methylcellulose hpmc pa kachulukidwe ndi mpweya wa matope a simenti
Kuchuluka kwa hpmc ndi 0-0.20%, kachulukidwe ka matope kumachepa kwambiri ndikuwonjezeka kwa kuchuluka kwa HPMC, kuchokera pa 2050kg / m3, yomwe ili pafupi 20% yotsika; kuchuluka kwa HPMC kumapitilira 0,20%, kachulukidwe umachepa. kudekha. Kufanizira mitundu ya hpmc yomwe ili ndi ma viscosties osiyanasiyana, mawonekedwe owoneka bwino, apansi pa matope; Kuchulukitsa kwa matope ndi ma viscosies osakanikirana a 150 ndi 200 pa.s hpmc kopitilira muyeso, kuwonetsa kuti monga mawonekedwe a HPMC ikuwonjezereka.
Lamulo losintha la mpweya lomwe lili ndi matope likuyang'anizana ndi kusintha kwa matope. Pamene zomwe zili hydroxypropyl hpmc ndi 0-0.20%, ndi kuchuluka kwa zomwe zili mu HPMC, mpweya womwe ulipo wamatope umakwera pafupifupi; Zomwe zili mu HPMC zimaposa 0,50%, mpweya womwe uli ndi mpweya umasintha, kuwonetsa kuti mphamvu zochokera kwa matope ili pafupi ndi Kusaka. Mphamvu yochokera kwa HPMC yokhala ndi mafayilo a 150 ndi 200 pa the.s ndi wamkulu kuposa a HPMC yokhala ndi maulendo 40 ndi 100 pa.s.
Mphamvu ya mpweya wa ethel ether imatsimikiziridwa ndi mawonekedwe ake. Cellulose ether ili ndi magulu onse a hydrophilic (hydroxyl, etherrobyl ndi magulu a hydrophobic (methyl, mphete ya glucose), ndipo ndizosatheka. , ili ndi ntchito yamayiko, motero kukhala ndi mphamvu yochokera mu mpweya. Kumbali inayo, mpweya woyambitsidwa umatha kukhala ngati mpira womwe umakhalapo m'matope, kukonza matongosolo a matope, onjezerani voliyumu, ndikukulitsa, zomwe ndizopindulitsa kwa wopanga. Koma kumbali inayo, mphamvu zodzimangirira mpweya zimawonjezera mpweya wa matope ndi kuseka kwamphamvu, zomwe zimapangitsa kuti zigule zovulaza komanso zimachepetsa mphamvu. Ngakhale HPMC ili ndi mphamvu inayake ya mpweya, sizingasinthe wothandizira wa mpweya. Kuphatikiza apo, pomwe wothandizira wa HPMC ndi mpweya amagwiritsidwa ntchito nthawi yomweyo, wothandizira mpweya amatha kulephera.
2.3 Zotsatira za HPMC pa makina opanga simenti
Kuchuluka kwa HPMC ndi kokha 0,05%, kulimba kwa chivundikiro kwa matontho kumachepetsa kwambiri, komwe kumatsika kwambiri kuposa momwe mungasungire 65% ya zitsanzo zokhala -80%. Kuchuluka kwa HPMC kumapitilira 0,20%, kuchepa mphamvu yotheratu komanso kulimba mtima kwa matope sikuwonekeratu. Makulidwe a HPMC alibe mphamvu pa makina opanga matope. HPMC imayambitsa thovu kakang'ono kwambiri, ndipo zotsatira za mlengalenga pamatonthozo zimawonjezera chidwi ndi matope owopsa a matope, zomwe zimapangitsa kuti pakhale mphamvu yopondera komanso kuthawa. Chifukwa china chomwe chimachepa kwambiri mumphamvu ndi madzi osungidwa a cellulose ether ether, omwe amasuntha madzi mu matope owuma, ndipo chiwerengero chachikulu cham'madzi chimatsogolera ku kuchepa kwa chipika cha chipilala cha mayeso. Kwa matope omanga makina, ngakhale cellulose ether imatha kuwonjezera madzi osunga madzi a matope ndikusintha, ngati mlingo wake ndi waukulu, ndiye kuti ubale pakati pa awiriwo uyenera kuyesedwa.
Ndi kuwonjezeka kwa zomwe zili hydroxypropyl methylcellulose hpmc, chiwerengero cha matope chimawonetsa zomwe zidachitika kwambiri, zomwe zinali ubale wofanana. Izi ndichifukwa choti ethersese yowonjezera ya cellulose imayambitsa zikhumbo zambiri za mpweya, zomwe zimapangitsa kuti mphamvu zambiri zamkati zitakhalamo, ndipo mphamvu yovuta kwambiri ya chitsogozo Koma ethel ether amatha kusintha matope a matope, ndizopindulitsa mphamvu zothekera, zomwe zimapangitsa kuchepa pang'ono. Kuganizira mokwanira, kuphatikiza awiriwo kumabweretsa kuwonjezeka kwa kuchuluka kwa chiwerengerocho.
2.4 Zotsatira za HPMC pa mainchesi
Kuchokera pakugawana kwapakatikati kopitilira, Kugawana Kugawa Kugawa ndi magawo osiyanasiyana a zitsanzo za zitsanzo, zitha kuwoneka kuti HPMC ili ndi mphamvu yayikulu pa matope a simenti:
(1) Pambuyo poti kuwonjezera HPMC, kukula kwa matope a simenti kumawonjezeka kwambiri. Pazithunzithunzi chogawana chogawa, malo a chithunzicho amasuntha kumanja, ndipo mtengo wapakhomo wolingana ndi mtengo wa Peak umakhala wokulirapo. Pambuyo poti kuwonjezera hpmc, m'mimba mwake matope a simenti ndiyabwino kwambiri kuposa zitsanzo zofowoka, ndipo gawo latsopano la mndandanda wazomwe zili ndi ma 0.3% amakulitsidwa ndi 2 zitsanzo.
. Itha kuwoneka kuchokera pagome 1 kuti kuchuluka kwa mabowo osavulaza kapena mabowo otsika mtengo kwambiri amachepetsedwa pambuyo powonjezera HPMC, ndi mabowo ovuta kapena mabowo ovuta kwambiri. Zovala zosavulaza kapena pores zovulaza za zitsanzo zomwe sizinaphatikizidwe ndi HPMC ndizokhudza 49.4%. Pambuyo kuwonjezera hpmc, pores osavulaza kapena pores yopanda vuto ili yochepa kwambiri. Kutenga mlingo wa 0,1% monga chitsanzo, ma pores osavulaza kapena pores yopanda kanthu kena kochepa ndi 45%. %, kuchuluka kwa mabowo ovulaza kuposa 10um kuwonjezeka ndi pafupifupi 9.
. zokhudzana ndi kubalalika kwakukulu. Koma kwathunthu, m'mimba mwake wapakati, wapakatikati pamawu am'mimba ophatikizika ndi zitsanzo zophatikizika ndi HPMC imakonda kufananizidwa ndi chitsanzo chopanda kanthu.
Post Nthawi: Apr-03-2023