Quicklime. Quicklime pob siv. daim ntawv thov

Kom txog thaum uas lub sij hawm, cua txiv qaub nyob rau hauv kev tsim kho tau tsuas yog siv nyob rau hauv daim ntawv ntawm cov slaked. I. Smirnov nyob rau hauv lub thirties tswv yim mus rau siv ib tug txawv cov ntaub ntawv uas. Nws, thiab tom qab ntawd Osip BV pom tias nyob rau hauv tej yam tej yam kev mob, co hardening ntawm cov ntaub ntawv uas yuav tshwm sim. Qhov no tus txheej txheem yog zoo ib yam li hardening ntawm Portland maas los gypsum.

lus qhia dav dav

Txiv qaub - yog ib qho thoob plaws hauv lub ntiaj teb no tswvyim, sib txuas conditionally firing khoom (ua thiab tom qab ntawd) cwj mem av dawb, limestone thiab lwm yam carbonate pob zeb. Classification yog nqa tawm raws li cov tshuaj muaj pes tsawg leeg. Feem ntau, lo lus "txiv qaub" yog meant slaked txiv qaub thiab nws cov tshuaj tiv thaiv cov khoom nrog dej. Qhov no cov ntaub ntawv uas tej zaum yuav hmoov, av daim ntawv los yog nyob rau hauv qhov kev xeem. Formula burnt txiv qaub - Cao. Qhov no compound yog ib tug calcination khoom ntawm sawmills, nyob rau hauv uas calcium oxide ua raws li ib tug yooj yim tshuaj tivthaiv. Nws yog kev koom reacts nrog dej. Raws li ib tug tshwm sim ntawm cov co ntawm slaked txiv qaub tsim - Ca (OH) _2.

kev faib

Raws li cov tshuaj nyob tus yeees ntawm sib tov twb sib cais huab cua (mas muaj oxides ntawm magnesium thiab calcium) thiab haus dej (muaj loj nyiaj ntawm cov hlau oxides, txhuas, thiab silicon). Nyob rau hauv kev lag luam, siv pob txiv qaub thiab quicklime siv hmoov. Cov yav tas yog tseem muab faib ua ob hom. Thawj - txiv qaub av quicklime. Qhov thib ob hom yog ua los ntawm daim ntawv thov ntawm ib tug tshwj xeeb technology. Tua txoj kev magnesia, calcium txiv qaub thiab dolomitic siv ib tug tsawg nqi ntawm cov dej tau slaked txiv qaub (hydrated txiv qaub). Nws muaj lwm yam hom. Cov no muaj xws, nyob rau hauv particular, xws li perchloric, thiab dej qab zib-txiv qaub.

ntau lawm

Manufactured txiv qaub rau kev tsim kho uas siv tej yam calcium thiab magnesium hom. Lawv mas muaj xws li cov carbonate ntawm calcium thiab magnesium. Nyob rau hauv lawv muaj pes tsawg leeg kuj muaj xws li txais av ya thiab xuab zeb admixtures. Thaum lub sij hawm thermal ua (los ntawm cua kub) nyob rau hauv ib tug cub tawg mus rau ib tug kub ntawm 800 rau 1200 degrees calcium-magnesium pob zeb pib decompose. Raws li ib tug tshwm sim ntawm txoj kev no ua magnesium oxide (MgO) thiab poov hlau (Cao) thiab cov pa roj carbon dioxide.

Lub tshuab rau cov zoo sib tsoo lub sib tov

Txiv qaub av quicklime tau los ntawm kev sib tsoo lub sib tov nyob rau hauv ib tug pa pob mills. Lawv ua hauj lwm yog nqa tawm nyob rau hauv ib tug kaw lub voj voog nrog pom qhov txawv ib tug yuav tsum tau particle loj separator. Nyob rau hauv tej rooj plaub, lub tsev yog muab tso rau hauv ob separators nyob rau hauv series. Qhov no ho tsub kom productivity. Rau hnub tim, cov lus nug pulverized txiv qaub insufficiently tsim. Cov kev xaiv ntawm sib tsoo mills thiab circuits tsim nyog los xav txog feem neeg kawm ntawv uas ci ntawm cov khoom (xav, medium los sis myagkoobozhzhenny khoom). Nco ntsoov mus rau hauv tus account lub xub ntiag ntawm burnout, unburned carbon, lub xub ntiag ntawm cov khib nyiab. Txaus thiab sredneobozhzhennuyu txiv qaub zoo zom, kuj nyob rau hauv nws particle puas thiab tej yam. Qhov no yog dab tsi tshwm sim nyob rau hauv lub pob mills. Nws yuav tsum tau muab sau tseg tias nyiam cov khoom hais rau aggregation yuav tsum tau luv luv mills thiab ceev ceev tshem tawm ntawm tag nrho cov luj ntawm lub sib tov ntawm zog ntov zoo fractions, raws li zoo raws li cov kev siv ntawm txoj kev uas kom tsis txhob aggregation.

Kev siv ntawm quicklime thiab nws cov khoom

Qhov no cov ntaub ntawv uas yog dav siv nyob rau hauv txawv spheres ntawm tib neeg kev ua si. Qhov loj tshaj plaws cov neeg muas zaub muaj xws li: ferrous metallurgy, ua liaj ua teb, qab zib, tshuaj, sis plawv hniav thiab cov ntawv ua lag luam. Cao thiab siv nyob rau hauv kev tsim kho kev lag luam. Ntawm kev tseem ceeb yog lub compound nyob rau hauv lub cheeb tsam. Txiv qaub yog siv rau kev tshem tawm ntawm cov leej faj oxide flue roj. Cov compound kuj tau muag dej thiab lub precipitate tam sim no nyob rau ntawd organic tshuaj thiab cov khoom. Tsis tas li ntawd, siv ntawm ceev txiv qaub muab tej yam ntuj tso neutralizing acidic thiab dej khib nyiab. Nyob rau hauv ua liaj ua teb, thaum nyob rau hauv kev sib cuag nrog xau compound acidity eliminates teeb meem rau cov qoob loo nroj tsuag. Quicklime enriches cov av nrog poov hlau. Qhov no yuav tsub lub workability ntawm lub ntiaj teb, accelerates tus lwj ntawm humus. Nyob rau tib lub sij hawm nws yog txo qhov yuav tsum tau rau nitrogen chiv daim ntawv thov nyob rau hauv loj koob tshuaj. Lub hydrated sib tov yog siv nyob rau hauv nqaij qaib thiab cov tsiaj nyeg rau pub mis. Yog li xa cov tsis muaj calcium nyob rau hauv cov khoom noj. Ntxiv mus, lub compound siv rau kev txhim kho cov kev noj qab haus huv tej yam kev mob thaum ua kom thiab nteg qe tsiaj txhu. Nyob rau hauv lub tshuaj lag luam hydrated txiv qaub thiab adsorbents siv rau qhov kev npaj ntawm fluoride thiab calcium hydrochloride. Nyob rau hauv lub petrochemical kev lag luam compound neutralizes lub acid sludge thiab kuj ua raws li ib tug reagent mas inorganic thiab organic synthesis. Txiv qaub yog dav siv nyob rau hauv kev tsim kho. Qhov no yog vim high school tej ntaub ntawv. Cov sib tov twb siv nyob rau hauv qhov kev npaj ntawm binders, concretes thiab mortars, rau zus tau tej cov tsev khoom.

Quicklime micronized. zoo

Quicklime, raws li twb hais saum toj no, yog siv nyob rau hauv qhov siv thiab ua concretes thiab mortars. Qhov no compound muaj ib tug xov tooj ntawm zoo. Nyob rau hauv kev, muab piv nrog hydrated txiv qaub nyob rau hauv daim ntawv ntawm ib tug ua khob noom cookie los yog ib tug hmoov sib tov ntawm finely faib nplooj tsis muaj pov tseg. Nrog rau tag nrho nws cov Cheebtsam thaum lub sij hawm lub hardening yog siv feem ntau nraaj. Txiv qaub av quicklime yog dej tsawg thov. Ntxiv mus, nws tej deg hauv cheeb tsam yog tseem ho tsawg dua. Nyob rau hauv no hais txog, "workability" los yog qhob raws li Cao tshuaj tau nyob ib tug txo volume ntawm cov dej. Txo cov dej yuav tsum tau kev ua vaj tse thiab mortars pab lawv stability thaum lub sij hawm hardening. Thaum co nyob rau hauv twb npaj mixtures ntawm txiv qaub uake dej ntau (nyob rau hauv kev hloov mus rau haus dej - 32%). Qhov no muaj txhawb rau muab cov khoom ntawm concretes thiab mortars ntawm kev kub ceev thiab muaj zog. Nyob rau hauv tus txheej txheem ntawm hardening lub hydrated quicklime av txiv qaub cai evolution ntawm loj nyiaj ntawm tshav kub. Nyob rau hauv kev twb kev txuas nrog rau qhov no khoom raws li nyob rau hauv no compound thaum uas tsis muaj (hauv qab no cia kom khov) kub thiaj calmer thiab muaj zoo lub dag lub zog tseem ceeb, raws li ib puag ncig tej yam kev mob muab ceev ceev thaum tshav kub kub tshem tawm thiab txo thermal stresses. Nws yog ib cov kev pab yuav ua rau ib tug dav siv ntawm Cao nyob rau hauv kev tsim kho kev lag luam.

Yuav ua li cas kom tau high-zoo pob zeb thiab mortar hmoov sib tov?

Thaum hydrated hardening quicklime av txiv qaub zoo tau yog ua tau nyob rau hauv tej yam tej yam kev mob. Firstly, lub sib tov yuav tsum tau zoo sib tsoo. Nws tseem yog tsim nyog ua raws li tej yam piv ntawm txiv qaub thiab dej. Nyob rau hauv tus txheej txheem ntawm hardening yuav tsum tau zoo thaum tshav kub kub tshem tawm yuav tsum tau ua ntawv thov los yog lwm txoj kev uas tsis pub reheating hardening concretes los yog kev daws teeb meem rau kub uas yuav ua rau khaus evaporation ntawm noo noo (tshwj xeeb tshaj yog thaum lub sij hawm boiling). Nws tseem ceeb heev txiav stirring lub sib tov ntawm ib tug tej theem ntawm txiv qaub co txheej txheem.

Cia thiab nqi

Nqe txiv qaub quicklime nyob ntawm ntau yam, cov hom thiab ntau npaum li cas nyob rau hauv uas cov ntaub ntawv uas yuav tsum tau. Piv txwv li, tus nqi ntawm lub hnab no yog los ntawm 300-400 rubles, thiab ib tug tuj - los ntawm 8-10 hom txhiab rubles .. Khoom cia yog nyob rau hauv warehouses nrog mechanized loading thiab unloading. Lub duration ntawm lub compound yuav tsum tsis txhob pub ntev tshaj tsib-kaum hnub (kom tsis txhob carbonization thiab co ntawm calcium oxide). Consumer txiv qaub los yog quicklime nais grinded xa mus rau hauv ntim, hnab los yog bituminous wagons txawm peem rau nws thauj mus los, los yog nyob rau hauv cement tsheb thauj khoom. Bagging yog ua li cas siv niaj hnub units nrog shaker. Lub hle khoom yuav tsum tau muab cia rau tsis ntev tshaj kaum tsib hnub.