Nā holomua i ka ʻenehana DTH Drilling Hydraulic a me ka wai.
1. Pono o ka Hydraulic Rock Drills
① High Hydraulic Pressure: Mai ka 10 a hiki i ka 25 MPa, me ke au i nā palena kiʻekiʻe. ʻOi aku ka nui o kēia ma mua o ke kaomi pneumatic.
② Mana Hoʻopuka Kiʻekiʻe: Ma waena o 5 a 20 kW. ʻO kekahi mau hiʻohiʻona, e like me ka COP4050 e ATLAS a me ka HL2000 e TAMROCK, hiki i 40 kW, aʻo ka HL4000 e loaʻa i ka 70 kW.
③ ʻO ka wikiwiki o ka hoʻoheheʻe ʻana: Loaʻa maʻamau ka wikiwiki o ka wili ʻana o 1-3 m / min.
④ ʻOi aku ka maikaʻi: ʻO ka maikaʻi o nā hoʻoheheʻe pōhaku hydraulic iā lākou iho hiki ke piʻi i 50%, a ʻoi aku ka maikaʻi o nā paila hydraulic ma mua o nā mea hoʻoheheʻe ea. No laila, ʻoi aku ka kiʻekiʻe o ka hoʻohana ʻana i ka ikehu ma mua o nā ʻōnaehana pneumatic rock drill.
2. Nā pōʻino o ka Hydraulic Rock Drills
① Nalo ka hoʻouna ʻana i ka ikehu: No ka mea aia ka puʻu pōhaku ma luna o ke koʻokoʻo drill, piʻi aʻe nā poho o ka hoʻouna ʻana i ka ikehu me ka hohonu o ka lua, a e emi ana ka wikiwiki wili.
② Hoʻohana ʻia ʻo High Drill Rod: I ka piʻi ʻana o ka mana o nā drill pōhaku hydraulic, piʻi pū ke koʻikoʻi ma ke koʻokoʻo drill, e alakaʻi ana i nā helu pōʻino kiʻekiʻe. ʻOiai ʻo nā ʻenehana e like me Atlas Copco's casing drilling e kōkua i ka hōʻemi ʻana i ke koʻikoʻi, hoʻonui lākou i nā kumukūʻai a hiki ʻole ke hoʻopau piha i ka pilikia, a laila e kaupalena ana i ka mana puka o ka drill. No ka laʻana, ʻoiai ua helu ʻia ka mana o COP4050 ma 40 kW, ʻo 30 kW wale nō i hoʻohana ʻia no ka ʻeli ʻana i ka lua hohonu e hōʻemi i ke koʻikoʻi o nā mea hana.
③Borehole Deviation: ʻO nā koʻokoʻo wili e hoʻomanawanui i ka hopena a me ka torque, e alakaʻi ana i ke kulou a me ka deformation, e hōʻemi ana i ka pololei o ka lua.
3. Pono oIho-ka-Hole (DTH)ʻO nā haʻawina
① ʻAʻohe Pohō ʻEhu: Pili pololei ka hāmare i kadrill bit, e hoopau ana i ka pono no ka hoololi ikehu hopena ma o ke kookoo drill, e hooiaio ana i ka holo mau ana o ka wili ana me ka nana ole i ka hohonu.
② ʻO nā Borehole Pololei: He kiʻekiʻe ke koʻikoʻi o ke koʻokoʻo drill, ʻaʻole i kau ʻia i nā mana hopena, a hoʻouna wale i ka torque me ke kaomi axial liʻiliʻi. ʻAʻole kēia i ka piko a me ka deformation, e hōʻoia ana i nā luawai pololei a maʻemaʻe. ʻOi aku ka maikaʻi o nā hoʻomaʻamaʻa DTH ma nā ʻano haʻihaʻi, nā ʻāpana inclined, a i ʻole ka paʻakikī pōhaku loli.
③ Hoʻopau ʻia nā ʻōpala maikaʻi: Ua pālua ka mana o ka mana ma ke ʻano he mea hoʻoheheʻe ʻia, e hoʻomaʻemaʻe pono i ka lua a pale i ka hoʻoulu ʻana.
④ Noise Haʻahaʻa: No ka loaʻa ʻana o ka hopena ma lalo o ka luawai, ʻoi aku ka haʻahaʻa o ka walaʻau ma muanā haʻamaʻa hammer top.
⑤ Hoʻohana ākea: Koe wale nā hana palupalu loa, ʻoi aku ka maikaʻi o nā drill DTH ma nā ʻano pōhaku āpau, ʻoi aku ma mua o nā drill pōhaku top-hammer i ke anawaena lua a me ka hohonu.
Hāʻawi ʻia i kēia mau pōmaikaʻi, manaʻo nui ʻia ka DTH drilling ma ke ʻano he koho maikaʻi loa, me ka 90% o nā quarries Pelekane e hoʻohana nei i kēia ʻano.
4. Nā pōʻino o Pneumatic DTH Drills
① ʻO ka haʻahaʻa haʻahaʻa a me ka mana: ʻO ka drawback mua o nā drill DTH pneumatic ʻo ko lākou haʻahaʻa haʻahaʻa haʻahaʻa a me ka mana hoʻopuka, e alakaʻi ana i ka wikiwiki o ka wili ʻana. ʻOiai ua hoʻokiʻekiʻe nā holomua i ke kaomi ea i 2.5 MPa, aia nō kēia ma lalo o ke kaomi hydraulic o nā drill pōhaku. Eia kekahi, ʻoi aku ka pipiʻi o nā compressors ea kiʻekiʻe, koi i nā hoʻokele mana kiʻekiʻe, hoʻonui i ka walaʻau, a nalowale ka hana ma nā wahi kiʻekiʻe.
② ʻO ka hoʻohana ʻana i ka ikehu haʻahaʻa haʻahaʻa: ʻO nā drill DTH Pneumatic e hoʻopau i ʻekolu manawa ʻoi aku ka nui o ka ikehu i kēlā me kēia mika i hoʻoheheʻe ʻia ma mua o nā drill pōhaku hydraulic.
5. Nā noi o HydraulicDTH Hammers
No ka hoʻohui ʻana i nā mea maikaʻi o nā ʻoihana pōhaku hydraulic (ke kiʻekiʻe a me ka pono) a me nā DTH drills (pololei pololei), ua kūkulu ʻo Hausherr o Kelemania i ka "Rapid Hydraulic DTH Drill" i nā makahiki 1990. ʻO kāna hoʻololi ʻana a me nā ʻano hopena i hoʻokele hydraulically. He ʻelua laina ʻaila no ka hāʻawi ʻana a me ka hoʻihoʻi ʻana. Loaʻa nā wili wikiwiki i ʻekolu anawaena: 90 mm, 115 mm, a me 150 mm, kūpono no nā lua lua me nā anawaena o 100–125 mm, 127–156 mm, a me 168–230 mm.
He ho'āʻo hoʻohālikelike ma waena o ka HBM80S pneumatic DTH drill o Rapid a me Hausherr i hōʻike ʻia, no nā anawaena borehole like (125 mm) a me ka hohonu (36 m), ua hōʻike ʻo Rapid i nā pono waiwai nui me ka mana mīkini haʻahaʻa, ka hoʻohana wahie, a me ka hoʻohana ʻana i ka aila lubrication ratios o 0.46, 0.46, a me 0.47.
6. Nā hoʻohana ʻana i nā Hammers Wai-Powered Hydraulic
Ua kūkulu ʻo LKAB o Suedena a me kāna hui ʻo G-Drill i ka "Wassara Water-Powered DTH Hammer" i ka hopena o 1980s. Me ka hoʻohana ʻana i ka wai koʻu kānana ma ke ʻano he kumu, hana ia ma ke kaomi o 18-20 MPa a me nā kahe kahe o 200-300 L/min. Me ka awelika o ka wili ʻana i ka wikiwiki o 850 mm / min, ʻoi aku ka maikaʻi o nā hama pneumatic (maʻamau 320 mm / min).
Ua hōʻike ʻo Wassara hammer i ka hana ʻokoʻa, e like me ka hōʻemi ʻana i ka deviation borehole ma ka hapalua a me ka hoʻonui ʻana i ka huahana ma 86% ma nā mines LKAB. Loaʻa nā noi i ka hoʻoheheʻe subway ma New York a me ka hoʻoheheʻe geothermal ma Switzerland, kahi i hoʻopau ai i kahi lua 599.8 m i loko o 5 mau lā, i hoʻohālikelike ʻia me 3 mau pule me nā drill rotary kuʻuna.
7. Hoʻohālikelike: Hydraulic Water-Powered vs. Hydraulic Fluid-Driven Hammers
Nā Hāmeʻa Wai-Powered: E hoʻohana i ke kaomi wai paʻa, e hoʻokō i ka hana kiʻekiʻe a me ka wikiwiki o ka wili ʻana, kūpono no nā noi mining.
Nā Hāmeʻa Hoʻokele Wai: E hoʻohana i ke kaomi wai ikaika a ua kaupalena ʻia i ka wili honua me nā haʻahaʻa haʻahaʻa (0.5–4 MPa) a me ka pono (
8. Ka hopena
Hydraulic a me ka mana waiNā hāmare DTHhoʻohui i nā mea maikaʻi o ka top-hammer hydraulic drills a me nā hāmare DTH pneumatic, e hāʻawi ana i ka hoʻohana haʻahaʻa haʻahaʻa, nā wikiwiki hoʻoheheʻe wikiwiki, a me nā puka puka pololei. ʻO ka ʻenehana hui ʻia no ka mana a me ka hoʻoheheʻe ʻana e hoʻomaikaʻi i nā hammers i hoʻohana ʻia i ka wai no ka hoʻomohala ʻana i ka wā e hiki mai ana.
