Kunemikhawulo ekuthuthukisweni kokusebenza kwe-gypsum slurry ngokuhlanganiswa okukodwa. Ukuze uzuze ukusebenza okugculisayo kodaka lwe-gypsum futhi uhlangabezana nezidingo zohlelo lokusebenza ezihlukile, ama-admixtures ahlukene, ama-admixtures, ama-filler kanye nezinto ezahlukahlukene ezidingekayo ukuze zihlanganiswe futhi zithathwe ngokwesayensi nangokucacile ngokwesayensi nangokomqondo.
1 Coagulant
Ama-Modifiers we-Cooagition ahlukaniswe ikakhulu kuma-retaarders kanye nama-accelerator. E-gypsum eyomile ngodaka, imikhiqizo eyenziwe ngodaka lwamaParis wonke asebenzisa i-retard elungiselelwe, futhi imikhiqizo eyenziwe nge-anhydrite noma ngokuqondile usebenzisa i-gypsum ye-dihydrate idinga ukusetha i-accelerator.
2 retarder
Ukungeza i-retarder ku-gypsum wokwakha izinto ezihlanganisiwe kuvimbela inqubo ye-hydration ye-hemihydrate gypsum futhi yande isikhathi sokusetha. Izimo ezinemibandela ye-hydration yodaka yeParis zihlukahlukene, kufaka phakathi ukwakheka kwesigaba sodaka lweParis, izinga lokushisa lodaka lwe-paris lapho lwehlela umkhiqizo, ubunzima bezinhlayiya, isikhathi se-PH yenani lomkhiqizo ophelile. Isici ngasinye sinethonya elithile emthethweni wokubuyisa emuva, ngakho-ke umthamo wobutha emuva ngaphansi kwezimo ezahlukahlukene uhlukile kakhulu. Njengamanje, i-retarder ekhethekile ekhethekile ye-gypsum eChina iyiprotheni ye-metamorphic (amaprotheni aphezulu) i-retardard, enezinzuzo zezindleko eziphansi, isikhathi eside sokubuyiselwa, ukulahleka kwamandla amancane, ukwakhiwa komkhiqizo okuhle kanye nesikhathi eside esivulekile. Lapho kulungiswa i-gypsum yohlobo oluphansi, umthamo ngokuvamile u-0.06% kuya ku-0.15%.
3 Coagulant
Ukusheshisa isikhathi esishukumisayo se-slurry futhi kunwebe ijubane elishukumisayo le-slurry zonke izindlela zokugxuma ngokomzimba. Ama-Chemical Cooselants asetshenziswa kakhulu ezintweni zokwakha ze-AnhyDrite Powder zifaka i-potassium chloride, potassium silicate, sulfate namanye ama-acid. Umthamo ngokuvamile u-0.2% kuya ku-0.4%.
4 I-ejenti yokugcina amanzi
Izinto zokwakha ezihlanganiswe ngo-gypsum ezihlanganisiwe zihlukaniswa kuma-ejenti wokugcina amanzi. Ukwenza ngcono izinga lokugcinwa kwamanzi le-gypsum Product Slurry ukuqinisekisa ukuthi amanzi angaba khona ku-gypsum slurry isikhathi eside, ukuze athole i-hydration enhle kanye nomphumela onzima. Ukwenza ngcono ukusebenziseka kwezinto zokwakha i-gypsum powder, ukunciphisa nokuvimbela ukuhlukaniswa nokopha kwe-gypsum slurry, ukuthuthukisa i-sag ye-slurry, nokuxazulula izinkinga zekhwalithi yobunjiniyela, nokuxazulula konke kuhlukaniswa ama-ejenti agcina amanzi. Ukuthi i-ejenti yokugcina amanzi ilungele ikakhulukazi ukukhathazeka kwayo, i-solubity yayo, ukukhulisa, ukuqina okushisayo nokuqina, phakathi kwayo okubaluleke kakhulu ukugcinwa kwamanzi.
① cellulose umenzeli wokugcina amanzi
Njengamanje, okusetshenziswa kakhulu emakethe yi-hydroxypropylylylylylylylylylylylylylylylylylylylylylylyl, kulandelwe yi-methyl cellulose, bese kuba yi-carboxymethyl cellulose. Ukusebenza okuphelele kwe-Hydroxypropylylylylylylylylylyllls kungcono kunalokho kwe-methyl cellulose, futhi ukugcinwa kwamanzi okuphezulu kuphakeme kakhulu kunalokho kwe-carboxymethyl cellulose, kepha umphumela wokuqina kanye nomphumela wokuqina kanye ne-bonding. Ezintweni zokwakha ezihlanganisiwe ze-gypsum, umthamo we-hydroxypropyl kanye ne-methyl cellulose ngokuvamile u-0,1% kuya ku-0.3%, kanye nomthamo we-carboxymethyl celtulose ngu-0,0% kuye ku-1.0%. Kufakazelwe ngenani elikhulu lezibonelo zohlelo lokusebenza ukuthi umphumela ohlanganisiwe walezi ezimbili ungcono. .
②Starch amanzi agcina amanzi
Umenzeli wokugcina amanzi e-Starch usetshenziselwa ikakhulukazi i-gypsum putty kanye ne-gypsum eluhlaza ebusweni, futhi ungabeka esikhundleni ingxenye noma yonke i-ejenti yokugcina amanzi e-cellulose. Ukungeza i-ejenti yokugcina amanzi esitobhini ezintweni zokwakha i-gypsum dry powder angathuthukisa ukuwenza, ukusebenziseka kanye nokuvumelana kokuqina kwe-slurry. Imikhiqizo evame ukusetshenziswa kwe-ejenti yokugcina amanzi ifaka isitashi se-tapioca, isitashi se-pregelatinised, isitashi se-carboxypropyl, isitashi se-carboxpropyll, njll. Umthamo we-Starch Water-Retain Agent ngokuvamile u-0.3% kuya ku-1%. Uma umthamo mkhulu kakhulu, umkhiqizo we-gypsum uzobe esenziwa endaweni enomswakama, okuzothinta ngqo ikhwalithi yephrojekthi.
③glue Uhlobo lwe-ejenti yokugcina amanzi
Amanye ama-adhesives asheshayo angadlala indima engcono ekugcinweni kwamanzi. Isibonelo, 17-88, 24-88 polyvinyl alcohol powder, i-tianqing gum kanye ne-guar gum zisetshenziswa ezintweni zokwakha ezixutshwe nge-gypsum ezifana ne-gypsum, i-gypsum putty, kanye ne-gypsum thermal incration. Umthamo we-cellulose water-ukugcina amanzi angancishiswa. Ikakhulu ku-gypsum evuthayo esheshayo, kwezinye izikhathi, ingashintsha ngokuphelele i-cellulose ether yokugcina amanzi.
④Inorganic water Retation Material
Ukusetshenziswa kwezinye izinto zokugcina amanzi ezintweni zokwakha zamanzi ezintweni ze-gypsum ezihlanganisiwe kunganciphisa inani lezinto ezithile zokugcina amanzi, zinciphise izindleko ezithile zokwenza ngcono ukusebenziseka nokusebenza kwe-gypsum slurry. Izinto ezisetshenziswayo ezisetshenziswayo ezisetshenziswayo zingamanzi ezihlala ngamanzi ziyi-bentonite, kaolin, i-diatomite, i-zeolite powder, i-perlite powder, attapulgite Clay, njll.
5 Adshesives
Ukusetshenziswa kwezikhangiso ezinama-adhesives ezintweni zokwakha ezihlanganisiwe ze-gypsum kungokwesibili kuphela kuma-ejenti wokugcina amanzi nabathengi. I-gypsum selveling udaka, i-jpsum ebopha i-gypsum, i-gypsum ye-caulsking, kanye ne-glue yokufakwa kwe-gypsum konke kuhlukaniswa kusuka ezinamatheks.
I-Distrible Polymer Powder:
I-Redisperible Teatex Powder isetshenziswa kabanzi ku-Gypsum selveling udaka ngodaka, i-gypsum caulking pulty, njll. Umthamo ngokuvamile u-1.2% kuya ku-2,5%.
Utshwala obusheshayo be-polyvinyl:
Njengamanje, i-polyvinyl esheshayo esetshenziswa kakhulu emakethe yimikhiqizo engama-24-8-88 nemikhiqizo engu-17-88, evame ukusetshenziswa eBonding Gypsum, i-gypsum putty, i-gypsum composite inhlanganisela yokufakelwa okushisayo, i-gypsum yokufakelwa okushisayo neminye imikhiqizo. 0.4% kuya ku-1.2%.
Isigubhu seGuar, iTian Qing Gum, i-carboxymethyl cellulose, isitashi i-ether, njll. Zonke zinamathela ngemisebenzi eyehlukene yokwakha ehlanganisiwe.
6 mkhulu
Ukuqina ikakhulukazi ukuthuthukisa ukuwenza kanye ne-sag ye-gypsum slurry, okufana nama-adhesives nama-ejenti okugcina amanzi, kepha hhayi ngokuphelele. Eminye imikhiqizo emikhulu iyasebenza ngokuqina, kepha ayilungile ngokuya ngokubumbana nokugcinwa kwamanzi. Lapho ulungiselela izinto zokwakha i-gypsum eyomile kafulawa, indima enkulu ye-admixtures kufanele ibhekwe ngokugcwele ukuze isebenze kahle futhi isebenzise ngokulinganayo Imikhiqizo esetshenziswayo esetshenziswa kakhulu yi-polynacrylamide, i-tian qing gum, gum gum, i-carboxymethyl cellulose, njll.
7 Umenzeli ongenisa umoya
Umenzeli ongenisa umoya, owaziwa nangokuthi i-ejenti ye-Foaming, isetshenziswa ikakhulukazi ezintweni zokwakha ezihlanganiswe e-gypsum ezifana ne-gypsum thermal incration inhlanganisela kanye ne-gypsum yokufakelwa. I-ejenti yokungena komoya (i-ejenti ye-Foaming) isiza ukwenza ngcono ukusebenziseka, ukumelana nokuqhekeka, ukumelana nesithwathwa kanye nokunciphisa ukopha nokuhlukaniswa. Umthamo ngokuvamile u-0.01% kuya ku-0.02%.
Ama-defoamers ayi-8
Ama-defouamers ajwayele ukusetshenziswa ku-gypsum self-leading usimende kanye ne-gypsum caulking pulty, engathuthukisa ubuntu, amandla, ukumelana kwamanzi kanye nobumbano be-slurry. Umthamo ngokuvamile u-0.02% kuya ku-0.04%.
9 Ukuncishiswa kwamanzi
I-ejenti yokunciphisa amanzi ingathuthukisa uketshezi lwe-gypsum slurry namandla omzimba oqinile we-gypsum, futhi ivame ukusetshenziselwa udaka olusezingeni le-gypsum lokuzimela kanye no-gypsum olimele. Njengamanje, kuhlelwa ama-superplastifizer asekhaya ngokuya nge-fluidity kanye namandla umphumela we-restardizer we-polycarboxylate restard Lapho usebenzisa amanzi anciphisa izinsiza zokwakha e-gypsum, ngaphezu kokucabanga ukusetshenziswa kwamanzi namandla, ukunakwa kufanele nakho kukhokhwe ekulahlekelweni kokusetha isikhathi nokwakheka kwezinto zokwakha ze-gypsum ngokuhamba kwesikhathi.
10 Ukuphindisela kwamanzi
Isici esikhulu kunazo zonke semikhiqizo ye-gypsum ingukumelana kwamanzi ampofu, kanye nokuphikiswa kwamanzi ngodaka lwamanzi ahlanganiswe ngotshani kuphakeme ezindaweni ezinomswakama ophakeme womoya. Ngokuvamile, ukumelana kwamanzi kwe-gypsum lukhuni umzimba olwenziwe lukhuni ngokungeza ukuhlanganiswa kwe-hydraulic. Endabeni yamanzi noma amanzi agcwele, ukungezwa kwangaphandle kokuhlanganiswa kwe-hydraulic kungenza ukuthi ukuthambisa i-coeffling ye-gypsum ibe lukhuni kungaphezulu kuka-0.7, ukuze kuhlangatshezwane nezidingo zamandla oMkhiqizo. Ama-Hlimical admixtures angasetshenziswa futhi ukunciphisa i-solubity ye-gypsum (okungukuthi, akhuphule i-coefficial ethambisayo), anciphise ama-adsorpling ama-gypsum emanzini (okungukuthi, anciphise ukulungiswa komzimba oqinile (okungukuthi, indlela engamelana nayo yamanzi yokuhlukaniswa kwamanzi). Ama-ejenti angenamanzi ama-gypsum afaka ama-ammonium asebeni, i-sodium methylsilicote, i-silicone resin, emulchimed paraffin, kanye ne-silicone emulsion materproofing agents enemiphumela engcono.
11 izikhuthazo ezisebenzayo
Ukwenza kusebenze kwe-anhydrite yemvelo neyomakhemikhali kungayenza inamathele futhi iqine, ilungele ukukhiqizwa kwezinto zokwakha ezixubile ze-gypsum. I-activator ye-acid ingasheshisa izinga le-hydration yokuqala ye-anhydrite, lifumene nesikhathi sokusetha, futhi sithuthukise amandla okuqala komzimba we-gypsum lukhuni. I-Alkaline Activator inomthelela omncane kumazinga okuqala we-hydrite, kepha ingathuthukisa kakhulu amandla ashubile omzimba we-gypsum oqinile, futhi angakwazi ukwenza ezinye izinto zokwenza izinqumo ze-hypsum, ethuthukisa ukumelana namanzi komzimba oqinile we-gypsum. ucansi. Umphumela we-acid-base activator eyinkimbinkimbi ungcono kunaleyo ye-acid eyodwa noma i-alkaline activator. Ama-acid ashukuphuli afaka i-potassium alum, i-sodium sulfate, i-potassium sulfate, njll. Izishoshovu ze-alkaline zifaka phakathi isikhathi esisheshayo, usimende, usimende Clinker, i-ndomite ekhethiwe, njll.
12 Thixotropic amafutha
I-Thixotropic Trubting isetshenziswa ku-gypsum yokuzilinganisa noma i-gypsum yokufaka, enganciphisa ukumelana nokugeleza kodaka lwe-gypsum, kunwetshwe isikhathi sokuvula, ukuze i-slurry ye-slurry, ukuze i-slurry itholakale kahle nokusebenza. Isakhiwo somzimba siyafana ngenkathi sikhulisa amandla aso angaphezulu komhlaba
Isikhathi sePosi: Feb-20-2025