Tsiku Lotumiza:24,Oct,2022

 

Si zachilendo kuti mchenga ndi miyala ikhale ndi matope, ndipo sizidzakhudza kwambiri ntchito ya konkire. Komabe, matope ochulukirapo adzakhudza kwambiri madzi, pulasitiki ndi kulimba kwa konkire, komanso mphamvu ya konkire idzachepetsedwa. Matope a mchenga ndi miyala yomwe amagwiritsidwa ntchito m'madera ena ndi okwera mpaka 7% kapena kupitirira 10%. Pambuyo powonjezera zosakaniza, konkire sangathe kukwaniritsa ntchito yoyenera. Konkire alibe ngakhale fluidity, ndipo ngakhale fluidity pang'ono adzazimiririka mu nthawi yochepa. Njira yayikulu yazomwe zili pamwambazi ndikuti nthaka yamchenga imakhala ndi ma adsorption apamwamba kwambiri, ndipo zosakaniza zambiri zimakongoletsedwa ndi dothi mutatha kusakaniza, ndipo zotsalira zotsalira sizikwanira kutsatsa ndikumwaza tinthu tating'ono ta simenti. Masiku ano, zosakaniza za polycarboxylate zakhala zikugwiritsidwa ntchito kwambiri. Chifukwa chochepa cha mankhwalawa, zomwe zili pamwambazi zimakhala zovuta kwambiri pamene zimagwiritsidwa ntchito popanga konkire yokhala ndi matope ndi mchenga wambiri.

Pakalipano, kafukufuku wozama akuchitika pamiyeso yothetsera kukana matope a konkire. Yankho lalikulu ndi:

(1) Wonjezerani mlingo wa admixtures. Ngakhale njirayi ili ndi zotsatira zoonekeratu, chifukwa mlingo wa admixtures mu konkire uyenera kuwirikiza kawiri kapena kuposa, mtengo wa kupanga konkire ukuwonjezeka. Ndizovuta kwa opanga kuvomereza.

(2) Chemical kusinthidwa kwa admixture ntchito kusintha maselo a admixture. Pali malipoti ambiri okhudzana, koma wolembayo akumvetsa kuti zowonjezera zotsutsana ndi matope zomwe zangopangidwa kumenezi zimakhalabe zosinthika ku dothi losiyana.

(3) Kupanga mtundu watsopano wa anti-sludge functional admixture kuti agwiritsidwe ntchito limodzi ndi zosakaniza zomwe zimagwiritsidwa ntchito. Tawonapo anti-sludge wothandizira ku Chongqing ndi Beijing. Mankhwalawa ali ndi mlingo waukulu komanso mtengo wapamwamba. Zimakhalanso zovuta kuti mabizinesi wamba a konkire avomereze. Kuphatikiza apo, mankhwalawa alinso ndi vuto la kusinthika kwa dothi losiyanasiyana.

 

Njira zotsatirazi zotsutsana ndi matope ziliponso kuti zigwiritsidwe ntchito pa kafukufuku:

1.Zosakaniza zomwe zimagwiritsidwa ntchito nthawi zambiri zimasakanizidwa ndi zipangizo zomwe zimakhala ndi dispersibility ndi mtengo wotsika kuti ziwonjezere zigawo zomwe zingathe kudsorbed ndi nthaka, zomwe zimakhala ndi zotsatira zina.

2.Kuphatikizirapo madzi osungunuka otsika-mamolekyu-wolemera polima mu admixture kumakhala ndi zotsatira zake.

3.Gwiritsani ntchito ma dispersants, retarders ndi zochepetsera madzi omwe amakonda kutaya magazi.