Umhla wokuThumela:6,Meyi,2024
Imithombo yodaka yahlukile, kwaye iinxalenye zazo nazo zahlukile. Udaka olukwisanti yekonkile kunye negrabile lwahlulahlulwe lwaziindidi ezintathu: umgubo welimestone, udongwe, kunye necalcium carbonate. Phakathi kwabo, i-powder yamatye ngamasuntswana amahle kwisanti eyenziweyo kunye nesayizi ye-particle engaphantsi kwe-75 μm. Yilitye elinye lomzali njengesanti eyenziweyo kwaye inokwakheka kweeminerali ezifanayo. Inxalenye ephambili yiCaCO3, eyinxalenye yokwakheka komgangatho wesanti eyenziweyo.
(1) Uphando malunga nomgaqo wokusebenza wodaka kunye ne-polycarboxylic acid yokunciphisa amanzi:
Ngokuqhelekileyo kukholelwa ukuba isizathu esona sizathu sokuba i-powder yodaka ichaphazela ikhonkrithi exutywe kunye ne-lignosulfonate kunye ne-naphthalene-based based reduction agents ukhuphiswano lwe-adsorption phakathi kwe-powder yodaka kunye ne-samente. Akukabikho ngcaciso emanyeneyo kumgaqo wokusebenza wodaka lomgubo kunye ne-polycarboxylic acid yokunciphisa amanzi. Abanye abaphengululi bakholelwa ukuba umgaqo osebenzayo womgubo wodaka kunye ne-arhente yokunciphisa amanzi ufana nesamente. I-agent yokunciphisa amanzi i-adsorbed phezu kwesamente okanye i-powder yodaka kunye namaqela e-anionic. Umahluko kukuba inani kunye nesantya sokubhengezwa kwe-arhente yokunciphisa amanzi ngomgubo wodaka likhulu kakhulu kunesamente. Kwangaxeshanye, indawo ethile ephakamileyo ethile kunye nesakhiwo esinabileyo seeminerali zodongwe nazo zifunxa amanzi amaninzi kwaye zinciphise amanzi asimahla kwi-slurry, echaphazela ngokuthe ngqo ukusebenza kokwakhiwa kwekhonkrithi.
(2) Iziphumo zezimbiwa ezahlukeneyo ekusebenzeni kweearhente zokunciphisa amanzi:
Uphando lubonisa ukuba udaka lodongwe kuphela olunolwando olubalulekileyo kunye neempawu zokufunxa amanzi ziya kuba nefuthe elibalulekileyo ekusebenzeni kokusebenza kunye neempawu zomatshini kamva zekhonkrithi. Udaka lodongwe oluqhelekileyo kwii-aggregates ikakhulu lubandakanya i-kaolin, i-illite kunye ne-montmorillonite. Uhlobo olufanayo lwe-agent yokunciphisa amanzi lunovakalelo oluhlukeneyo kwi-powders yodaka kunye neengqungquthela zamaminerali ahlukeneyo, kwaye lo mahluko ubaluleke kakhulu ekukhethweni kwee-agent zokunciphisa amanzi kunye nophuhliso lwezixhobo zokunciphisa amanzi ezinodaka kunye ne-anti-mud agents.
(3) Impembelelo yesiqulatho somgubo wodaka kwiipropati eziphathekayo:
Ukusebenza kokusebenza kwekhonkrithi akuchaphazeli nje ukubunjwa kwekhonkrithi, kodwa kuchaphazela iimpawu zomatshini kamva kunye nokuqina kwekhonkrithi. Umthamo wamasuntswana omgubo wodaka awuzinzi, uyacutheka xa womile kwaye uyanda xa umanzi. Njengoko umthamo wodaka ukhula, ingaba i-polycarboxylate i-agent yokunciphisa amanzi okanye i-agent esekelwe kwi-naphthalene yokunciphisa amanzi, iya kunciphisa izinga lokunciphisa amanzi, amandla, kunye nokuchithwa kwekhonkrithi. Ukuwa, njl., kuzisa umonakalo omkhulu kwikhonkrithi. Umgangatho wesizwe "I-Sand for Construction" (GB/T14684-2011) ichaza ukuba xa ibakala lamandla ekhonkrithi liyi-C30 okanye kukho ukuxhathisa kweqhwa, i-anti-seepage okanye ezinye iimfuno ezikhethekileyo, umxholo wodaka wodaka kwisanti yendalo awuyi kudlula i-3.0 %, kwaye isiqulatho sodaka asiyi kuba ngaphezu kwe-1.0 %; xa ibakala lamandla ekhonkrithi lingaphantsi kweC30, umxholo wodaka lodaka awuyi kudlula i-5.0% kwaye umxholo webhlokhi yodaka awuyi kudlula i-2.0%.
Ixesha lokuposa: May-06-2024
