BATCHING
Batching yog tus txheej txheem ntawm kev ntsuas qhov muaj pes tsawg leeg ntawm kev sib xyaw ua ke los ntawm ntim lossis loj thiab qhia nws mus rau hauv qhov sib tov. Kev lig kev cai, cov khoom xyaw yog tsim los ntawm ntim, tab sis feem ntau cov kev cai xav kom cov khoom xyaw ua los ntawm cov khoom ntau dua li ntim. Qhov tseeb ntawm kev ntsuas cov khoom ua vaj tse yog raws li hauv qab no.
Cement:
Thaum cov cement cov ntsiab lus ntawm cov khoom muaj ntau tshaj 30% ntawm qhov sib npaug, qhov ntsuas qhov tseeb yuav tsum nyob rau hauv 1% ntawm qhov teev teev. Yog tias qhov ntsuas qhov ntsuas tsawg dua 30%, uas yog, rau cov khoom me me, qhov ntsuas qhov tseeb yuav tsum nyob hauv 4% ntawm qhov xav tau kom muaj nuj nqis.
Aggregation:
Yog tias qhov ntsuas tus nqi siab tshaj 30% ntawm qhov ntsuas, qhov ntsuas qhov tseeb yuav tsum nyob hauv 1%. Yog tias qhov ntsuas tus nqi tsawg dua 30%, qhov ntsuas qhov tseeb yuav tsum nyob hauv 3%.
Dej:
Dej ntsuas los ntawm ntim, 1 liter=1 kilogram. Yog tias nws yog dej, qhov ntsuas qhov tseeb yuav tsum tsis pub dhau 1%.
Cov khoom xyaw:
Cov kev cai raug rau cov ntxhia sib xyaw yog tib yam li cov cement. Rau cov khoom siv tshuaj lom neeg, lawv qhov tseeb thiab kev siv dej yog tib yam. Qhov tseeb ntawm cov ntxhia sib xyaw yog tib yam li cov cement, vim lawv hloov cov cement. Vim qhov tseeb tias cov tshuaj sib tov yog kua lossis ntxiv rau hauv dej, lawv qhov tseeb yog tib yam li cov dej.
MIXING
Kev sib xyaw ua haujlwm suav nrog kev sib hloov lossis kev sib tov, nrog rau lub hom phiaj ntawm kev siv cov cement slurry rau saum npoo ntawm tag nrho cov khoom sib sau ua ke thiab npog tag nrho cov khoom ntawm cov pob zeb kom zoo ib yam; Qhov kev sib txuam no yuav tsum tsis txhob cuam tshuam los ntawm cov txheej txheem tawm ntawm lub tshuab tov khoom.
Batch tov khoom
Hom kev tov khoom ib txwm yog batch tov khoom, uas txhais tau tias sib tov ib batch ntawm pob zeb thiab tso tawm nws ua ntej ntxiv cov khoom ntxiv rau lub tov khoom. Muaj plaub hom kev sib tshuam sib xyaw.
Flip nruas mixer:
Lub tilting nruas tov khoom yog ib hom kev tov khoom uas tilts lub nruas sib tov kom tawm cov khoom. Lub nruas yog conical lossis lub tais zoo li tus, thiab cov hniav sab hauv tau tawm sai sai yam tsis muaj kev sib cais. Yog li ntawd, cov mixers no haum rau cov khoom sib xyaw ua haujlwm tsawg thiab cov khoom sib xyaw uas muaj cov khoom loj loj.
Disc tov khoom:
Disc tov khoom yog ib qho kev sib tov sib xyaw, sib txawv ntawm lub nruas tov khoom uas tso siab rau lub caij nplooj zeeg dawb ntawm cov pob zeb hauv lub nruas. Lub disc tov khoom muaj ib tug disc uas rotates nyob ib ncig ntawm nws axis thiab ib los yog ob lub hnub qub zoo li cov hniav uas rotate perpendicular mus rau lub axis ntawm lub disc.
Ob chav nruas tov khoom:
Ob chav nruas yog qee zaum siv rau kev tsim kho kev loj. Muaj ob lub nruas nyob rau hauv no, qhov twg cov pob zeb sib xyaw rau hauv ib lub nruas rau ib feem ntawm lub sijhawm, thiab lub sijhawm sib xyaw ntxiv yog hloov mus rau lwm lub nruas ua ntej unloading.
Continuous tov khoom:
Cov no tau txais los ntawm kev hnyav thiab batching system.
Nyob rau hauv ib qho kev tov khoom, kev sib pauv khoom txaus yuav tsum tau nqa tawm ntawm ntau qhov chaw ntawm lub chamber thiaj li tsim cov pob zeb sib xws. Qhov kev ua tau zoo ntawm cov khoom sib tov tuaj yeem ntsuas los ntawm kev hloov pauv ntawm cov qauv sib xyaw. ASTM tau hais tias cov qauv yuav tsum tau sau los ntawm kwv yees li 1/6 thiab 5/6 cov ntsiab lus ntawm kev tso tawm batch, thiab qhov kev ua tau zoo ntawm ob qhov qauv yuav tsum tsis pub tshaj ib qho ntawm cov hauv qab no:
Qhob ntom ntom 1 phaus / cubic ko taw
Cov ntsiab lus cua 1%
Thaum tus nqi nruab nrab tsawg dua 4 ", qhov poob qis yog 1"
1.5 "thaum tus nqi nruab nrab tsawg dua 4 mus rau 6"
Sieve 4 intercepts aggregate% 6%
Compressive zog 7 hnub, 3 lub tog raj kheej 7.5%
Mixing lub sij hawm:
Nws yog ib qho tseem ceeb kom nkag siab txog lub sijhawm sib xyaw yam tsawg kawg nkaus uas yuav tsum tau ua kom cov pob zeb sib xyaw ua ke thiab txhim khu kev qha.
Lub sijhawm sib tov lossis lub voj voog yuav tsum yog los ntawm tag nrho cov khoom siv cementitious thiab cov khoom sib xyaw nkag mus rau hauv lub nruas sib tov kom txog thaum cov pob zeb tshem tawm.
Lub sij hawm sib tov yog nyob ntawm hom thiab qhov loj ntawm lub tov khoom, qhov kev sib hloov ceev, thiab qhov zoo ntawm cov khoom sib xyaw thaum lub sij hawm tov khoom. Feem ntau hais lus, lub sijhawm sib xyaw tsawg dua 1 txog 1.25 feeb yuav ua rau muaj kev sib xyaw ua ke tseem ceeb thiab muaj zog qis dua; Kev sib xyaw rau ntau tshaj 2 feeb yuav tsis ua rau muaj kev txhim kho tseem ceeb hauv cov kev ua haujlwm no.
