Dab tsi yog crushed dolomite. Nws cov feem thiab siv

2024 Tus sau: Howard Calhoun | [email protected]. Kawg hloov kho: 2023-12-17 10:28

Hauv kev tsim kho, ntau cov ntaub ntawv siv ntau yam, ib qho yog dolomite crushed pob zeb. Cov tshuaj no muaj ntau yam kev siv, xws li los ntawm ib qho ntawm cov khoom sib xyaw hauv tsev mus rau kev ua kom zoo nkauj.

Dab tsi yog crushed dolomite

Raws li lub npe, nws twb muaj peev xwm txiav txim siab lub ntsiab - dolomite. Nws yog los ntawm cov pob zeb sedimentary nrog lub npe no uas lub pob zeb crushed yog tsim. Txawm li cas los xij, tsis yog txhua yam yooj yim. Raws li txoj cai, nyob rau hauv tib lub pob zeb kuj muaj limestone nyob rau hauv ntau qhov sib txawv. Yog li ntawd, ob hom dolomite crushed pob zeb raug cais:

• Dolomitic limestone (tsawg dua 75% dolomite).
• Limestone dolomite (tshaj 75% dolomite). Cov tsiaj no yog tus cwj pwm los ntawm qhov muaj ntau ntawm calcium.

Nyob ntawm qhov muaj pes tsawg leeg, cov xim ntawm cov khoom tuaj yeem sib txawv ntawm ntau yam, xws li xim av lossis daj rau grey lossis dawb. Raws li txoj cai, cov tshuaj muaj txiaj ntsig zoo sib xws hauv feem ntau, txawm li cas los xij, muaj qee yam khoom uas lawv tseem txawv me ntsis.

yam ntxwv ntawm ob yam khoom:

Properties	Dolomitic limestone	Limestone dolomite
Size	Up to 120 mm	Txog 70 mm
Ntau av nplaum	Up to 2, 2 %	Txog 2%
Txoj Kev	Txog 800	Up to 1400

Cov tshuaj no zoo ib yam hauv lawv lwm qhov ntsuas. Ntawm cov no, xov tooj cua yuav tsum tau hais txog, uas nyob rau hauv ob qho tib si tseem nyob rau theem ntawm 55 Bq / kg. Qhov no tsawg heev, vim hais tias tus qauv hauv kev tsim kho yog 370 Bq / kg.

Factions

Zoo li lwm yam khoom siv hauv tsev, crushed dolomite muab faib ua ob peb feem. Ntawd yog, nws tuaj yeem hloov pauv mus rau hauv cov khoom loj thiab me me.

feem ntau xaiv:

• 5-20 millimeters - nplua-grained gravel.
• 20-40mm yog nruab nrab grit.
• 40-120 millimeters - coarse-grained substance.

Cov khoom me me (2-5 millimeters) yog siv tsawg dua. Qee zaum, feem ntawm dolomite crushed pob zeb ntawm qhov tsis zoo, xws li 3-7 millimeters, tuaj yeem siv. Tab sis qhov tseeb, tsis muaj ntau qhov sib txawv ntawm no. Ib qho tshwj xeeb yuav yog cov khoom siv kim kim, uas nws yog ib qho tseem ceeb heev kom muaj cov nplej ntawm cov pob zeb crushed ntawm qhov loj me me.

Daim ntawv thov ntawm dolomiterubble

Fractions ncaj qha cuam tshuam rau thaj tsam ntawm cov khoom no. Cov nplej me tshaj plaws, txog li 20 millimeters hauv qhov loj, yog siv los ua cov pob zeb ntawm qhov dav tshaj plaws (dua, nws nyob ntawm cov feem xaiv). Ntawm lwm yam, nws yog qhov tseeb xws li pob zeb me me uas yog ib qho tseem ceeb ntawm lub qab nthab thiab kab teeb, thiab yog siv rau cov plag tsev (tshwj xeeb yog cov ntau yam uas tau taw qhia rau kev teeb tsa ntawm cov cuab yeej siv tshuab hnyav lossis lwm yam khoom siv zoo sib xws).

Loj dua dolomite crushed pob zeb, txog li 40 millimeters loj, yog siv thaum tso lub hauv paus thiab tseem tuaj yeem yog ib feem ntawm qee hom pob zeb sib xyaw. Nws yog qhov yooj yim los siv rau kev kho kom zoo nkauj backfilling ntawm txoj kev lossis thaj chaw. Tshwj xeeb tshaj yog feem ntau, cov khoom siv nrog xws li nplej tuaj yeem pom nyob rau hauv thaj chaw ntawm kev tsim toj roob hauv pes, tshwj xeeb tshaj yog tias nws muaj xim zoo nkauj. Nyob rau hauv kev twb kev txuas nrog cov yam ntxwv ntawm kev siv, feem ntau ib feem ntawm 20-40 millimeters yog muab nyob rau hauv lub hnab ntawm txog 50 kilograms. Xws li lub kaw lus tso cai rau koj los yuav ntau npaum li koj xav tau thiab tsis them nyiaj ntau dhau.

Lub pob zeb loj tshaj plaws, qhov loj ntawm 40 millimeters thiab siab dua (cov nplej loj dua 120 millimeters tsis tshua siv), yog siv rau kev tso kev loj, txoj kev hauv nroog, thiab lwm yam. Tsawg feem ntau, nws yog siv los tsim cov pob zeb loj tshwj xeeb thiab loj loj.

Result

Crushed pob zeb, vim nws cov khoom thiab kev faib ua feem, raug suav hais tias yog ib qho ntawm cov khoom siv hauv tsev zoo tshaj plaws,uas yuav luag ua tsis tau. Hmoov zoo, cov khoom khaws cia ntawm cov khoom no hauv ntiaj teb tsuas yog xav tsis thoob, thiab yog li nws tus nqi qis heev.