Summary: Uti wemvelo ugcwama kakhulu ngokuhlaselwa kwamandla wemvelo, kodwa ngenxa yokuvikelwa kwemvelo nezinye izizathu, izindleko zothuli lwezindawo zemvelo ziyaqina zanda, futhi alikwazi ukuhlangabezana nesidingo sêzimakethe esikhulayo njalo. Kulokhu, itshuli elenziwe ngumshini lavezwa futhi selisetshenziswa kabanzi....

Izinhlobo zeSihlabathi zini?

Isihlahla singahlolisiswa ngokwahlukanisa phakathi kwesihlabathi semvelo kanye nasesenziwe yimishini:

Umlambo wemihlambi: Izicucu zeqhwa ezinezilinganiso ezincane kunama-5mm, ezenziwe yimikhuba yemvelo (ikakhulukazi ukubola kwezindlwana), zibizwa ngokuthi umlambo wemihlambi wemvelo.

Usawoti okhiqizwayo: amatshe, izingcezu zemfucuza yezimayini noma iziqeshana zokuwa kwemfucuza yezimboni ezincane kunemitha ye-4.7mm, ezenziwa ngokugqobhoza ngomshini nasekuhlungeni ngemuva kokususwa komhlabathi, kodwa izinhlayiya ezithambile nezishonisiwe azifakwanga.

Natural sand vs Manufactured sand

Izakhi zomsakazo owenziwe yimodeli

1. Isiqalo somlambo owenziwe yimodeli siqondisiwe futhi senza ngemva kokucishwa yizikhululo ezikhethekile zokucisha. Indlela yokwenza ngemishini iqinisekisa ukusebenza kahle

2. Umlomo womhlabathi wezintaba-mlonyane uvamise ukuba nolusu olukhulu ngemva kokushintshwa kwamanzi, kuyilapho umhlabathi oqeqeshwe yi-mashini unezindawo eziningi nolusu olukhulu, ngakho izicucu zomhlabathi ezenziwe yi-mashini zingcono ekuxhumaneni nezinye izinto ezifana ne-cementi.

3. Izinto ezingavuthiwe zensimbi egaysi engenziwa zingavela kumfucuza eqinile. Ngasikhathi sinye, ekuhlelweni kwedolobha nasekuphakamiseni izakhiwo, udoti omningi wokwakha ungagayiwe ngokumuncu ngamaqoqo aphakathi ukuze kwakhiwe iqoqo elisetshenzisiwe kabusha, okungukuthi akugcini nje ngokuxazulula inkinga yokungcoliswa kwemvelo kodwa futhi kuthuthukisa izinga lokusetshenziswa kwemithombo yemvelo.

4. Phakathi nesikhathi sesibhengezo sokushoda kwezinsiza zesihlabathi socingo nolayini wokukhuphuka kwamanani ezimpahla eziyisisekelo, izindleko zokukhiqiza kwezinkampani zikhabhoni zingancishiswa futhi umphumela emkhakheni wokwakha ungathuthukiswa.

Indlela yokukhiqiza isanti eyenziwe ngemishini?

(1) Ukukhethwa kwamaphahla okuqala

Ayonke impahla ayikwazi ukusetshenziswa ekukhiqizeni isanti yemishini. Ngesikhathi sokukhiqiza isanti yemishini, kukhona izidingo ezithile ezimayelana namaphahla okuqala, njengoba:

1. Uma izinto ezisetshenziswa ekukhiqizeni isanti eyenziwe ngemishini zinezidingo ezithile zokomelela okukhulayo, futhi izinto ezingakwazi ukusetshenziswa ngezinkinga ezingase zibe khona.

2. Umgodi: gweba ukusetshenziswa kwe-overburden ejulile, amanzi amaningi phakathi kwama-interlayer kanye nokuhlupheka kwemigodi emibi njengeziqathanga zezitsha.

3. Izinto zokwakha zeqhwa ezibonakalayo: uma iqhwa livalwe ngesisekelo somhlabathi noma lihlanganiswe nesisekelo esihlakazwayo, kufanele siqale sithathe izinto zokwakha zeqhwa phambi kokwenziwa umfutho.

Izinto zokwakha ezivamile zokwenza umfutho owenziwe ngokomshini: amaqanda, i-limestone, i-granite, i-basalt, i-andesite, i-sandstone, i-quartzite, i-diabase, i-tuff, i-marble, i-rhyolite, i-ore ye-iron; izinto zokwakha eziphukile, i-tailings, i-tunnel slag, njll. Ngokwemibala ye-rock, kukhona umehluko emandleni nokusetshenziswa.

(2) Indlela yokwenza

The production process of machine-made sand can be generally divided into the following stages: block stone → coarse crushing → secondary crushing → fine crushing → screening → dust removal → machine-made sand. That is to say, the sand making process is to crush the massive rock several times to produce machine-made sand with a particle size of less than 4.75mm.

production process of manufactured sand

(3) Ukukhethwa kwesikhululo sokwenza isihlahla

Ngokuya ngendlela yokwahlukanisa i-stone powder, isinqumo sokwenza isihlahla singahlelwa ngokuba "ukwenza isihlahla ngamanzi", "ukwenza isihlahla ngaphandle kwamanzi" kanye "nokuwenza ngamanzi okuningi"; ngokuya ngenqwaba yomsebenzi, kungahlelwa ngokuba "ukwenza isihlahla ngokwahlukana" nangokuba "ukwenza isihlahla ngokusebenzisana"; ngokuya ngokwakhiwo, kungahlelwa ngokuba "isimo somgodi" nangokuba "isimo lesithambiso."

Ukuhlinza komhlabathi okwelotho okomile kusetshenziselwa ikakhulukazi i-gravel nezinye izinto eziyisisekelo ezinomquba ophezulu, okunganciphisa ngokuphumelelayo umquba, kodwa ukulahleka kwesihlabathi esincane kuwumsebenzi omkhulu futhi kudinga imithombo yamanzi eyanele. I-sand yomile isetshenziselwa ikakhulu ukukhiqizwa kwesihlabathi ngesihlabathi sempondomongo njengento yokuqala. Isihlabathi esincane asilahlekwa, okuqukethwe kwamalahle amatshe kulawuleka, futhi ukuhlukaniswa kwesihlabathi kusengcono, kodwa kunezidingo eziqinile kulokho okungaphakathi komquba wezinto eziyisisekelo.