Kufufuza kwa Pumice ku Indonesia
Kuonjezera apo, mapu a malo ozungulira malo omwe ali ndi mapumice akuluakulu amapangidwa kuti awonedwe mwatsatanetsatane. Kufufuza mwatsatanetsatane kunachitika kuti adziwe ubwino ndi mphamvu za nkhokwe motsimikiza kwambiri. Njira zowunikira zomwe zimagwiritsidwa ntchito ndi monga kubowola (kubowola pamanja kapena makina) kapena kupanga zitsime zoyesera.
Posankha njira yoti mugwiritse ntchito, malo omwe akuyenera kufufuzidwa ayenera kuganiziridwa, zomwe zimachokera pa mapu a mapu opangidwa pa siteji yofufuza.
Njira yowunikira ikuchitika popanga zitsime zoyeserera, mawonekedwe omwe amagwiritsidwa ntchito ndi amakona anayi (atha kukhalanso mawonekedwe a lalikulu) ndi mtunda kuchokera ku mfundo imodzi / mayeso bwino kupita ku mayeso ena bwino pakati pa 25-50 m. Zida zomwe zimagwiritsidwa ntchito popanga zitsime zoyesera ndi monga; khasu, khwangwala, chopikicha, ndowa, chingwe.
Pamene kufufuza ndi kubowola kungathe kuchitidwa pogwiritsa ntchito kubowola kokhala ndi bailer (chitsanzo chotchera), kaya kubowola pamanja kapena makina. Pakufufuza uku, miyeso ndi mapu amachitidwa mwatsatanetsatane, kuti agwiritsidwe ntchito powerengera nkhokwe ndi kupanga mapulani a migodi.
Pumice Mining ku Indonesia
Nthawi zambiri, ma depositi a pumice amakhala pafupi ndi dziko lapansi, migodi imachitika ndi migodi yotseguka komanso yosankha. Kuvula mochulukira kungatheke ndi zida zosavuta (pamanja) kapena zida zamakina, monga ma bulldozers, scrapers, ndi zina. Pumice wosanjikiza wokha ukhoza kukumbidwa pogwiritsa ntchito chofukula, kuphatikizapo backhoe kapena fosholo yamagetsi, kenako kulowetsedwa mwachindunji mugalimoto kuti itengedwe kupita kumalo opangirako.
Pumice Processing ku Indonesia
Pofuna kupanga pumice ndi khalidwe lomwe likugwirizana ndi zofunikira za kunja kapena zofunikira za zomangamanga ndi mafakitale, pumice yochokera ku mgodi imakonzedwa poyamba, mwa zina mwa kuchotsa zonyansa ndi kuchepetsa kukula kwake.
Mwachidule, njira yopangira pumice imakhala ndi:
Kusanja (kusanja); kulekanitsa pumice woyera ndi pumice ndi zonyansa zambiri (impuritis), ndipo amachitidwa pamanja kapena scalping zowonetsera.
Kuphwanya (kuphwanya); kuchepetsa kukula pogwiritsa ntchito ma crushers, ma hummer mphero, ndi ma roll mphero.
Makulidwe; Kuti musankhe zinthu molingana ndi kukula kwake molingana ndi kufunikira kwa msika, zimachitika pogwiritsa ntchito chophimba.
Kuyanika (kuyanika); ngati zinthu zochokera ku mgodi zili ndi madzi ambiri, ndizofunikira kuziwumitsa, pakati pa zina pogwiritsa ntchito chowumitsa chozungulira.
Komwe Mungapeze Mwala wa Pumice ku Indonesia
Kukhalapo kwa mapumice aku Indonesia nthawi zonse kumalumikizidwa ndi mapiri angapo a Quaternary to Early Tertiary. Malo omwe pumice amapezeka ndi awa:
- Jambi: Salambuku, Lubukgaung, Kec. Bongo, Kab. Sarco (wabwino pyroclastic)
otengedwa ku mayunitsi a miyala yamapiri kapena tuff yokhala ndi zida za pumice zokhala ndi mainchesi 0.5-15 cm zomwe zili mu Kasai Formation). - Lampung: kuzungulira zilumba za Krakatoa, makamaka ku Long Island (chifukwa cha kuphulika kwa Mt.
Krakatoa spewing pumice). - West Java: Danu Crater, Banten, m’mphepete mwa gombe lakumadzulo (zomwe zimadziwika kuti ndi zotsatira za ntchitoyi
G. Krakatoa); Nambala, Kab. Bandung (mu mawonekedwe a zidutswa mu tuff); Mancak, Pabuaran, Kab. Serang (zabwino zophatikizira konkriti, ngati zidutswa za tuff ndi kuthamanga); Cicurug Kab. Sukabumi (SiO2 zili = 63.20%, Al2O3 = 12.5% mu mawonekedwe a tuff rock zidutswa); Cikatomas, Cicurug G. Kiaraberes Bogor.
Chigawo Chapadera cha Yogyakarta: Kulon Progo mu Old Andesite Formation. - West Nusa Tenggara : Lendangnangka, Jurit, Rempung, Pringgesela (outcrop makulidwe 2-5 m kufalikira pa 1000 Ha); North Masbagik Kec. Masbagik Kab. East Lombok (outcrop makulidwe 2 – 5 m kufalikira pa 1000 Ha); Kopang, Mantang Kec. Chigawo cha Batukilang. West Lombok (yagwiritsidwa ntchito pa mahekitala 3000 a njerwa); Narimaga district. Rembiga Kab. West Lombok (outcrop makulidwe 2-4 m, yalimidwa ndi anthu).
- Maluku: Rum, Gato, Tidore (SiO2 content = 35.67 – 67.89%; Al2O3 = 6.4 – 16.98%).
- East Nusa Tenggara: Tanah Beak, Kec. Baturliang Kab. Central Lombok (yomwe imagwiritsidwa ntchito ngati chisakanizo cha konkire yopepuka ndi zosefera).