Ua ntej hauv Hydraulic thiab Dej-Powered DTH Drilling Technology.

1. Qhov zoo ntawm Hydraulic Pob Zeb Drills

① High Hydraulic Siab: Feem ntau yog li ntawm 10 mus rau 25 MPa, nrog rau kev hloov mus rau kev txwv siab dua. Qhov no yog ob peb mus rau kaum ob lub sij hawm siab dua pneumatic siab.

② High Output Power: Feem ntau ntawm 5 txog 20 kW. Qee cov qauv, xws li COP4050 los ntawm ATLAS thiab HL2000 los ntawm TAMROCK, ncav cuag 40 kW, thaum lub HL4000 ua tiav txog 70 kW.

③ Ceev Drilling Ceev: Feem ntau ua tiav qhov drilling ntawm 1-3 m / min.

④ Kev Ua Haujlwm Siab: Kev ua haujlwm ntawm hydraulic pob zeb xyaum lawv tus kheej tuaj yeem ncav cuag 50%, thiab cov twj hydraulic muaj txiaj ntsig zoo dua li cov tshuab cua compressors. Yog li ntawd, kev siv hluav taws xob tag nrho yog siab dua li ntawm pneumatic pob zeb laum tshuab.

2. Qhov tsis zoo ntawm Hydraulic Pob Zeb Drills

① Lub zog xa hluav taws xob poob: Txij li thaum lub pob zeb laum nyob rau sab saum toj ntawm lub laum pas nrig, lub zog xa hluav taws xob poob nce nrog ntau dua qhov tob, ua rau txo qis drilling ceev.

② High Drill Rod Hnav: Raws li lub zog ntawm hydraulic pob zeb xyaum nce, qhov kev ntxhov siab ntawm lub laum pas nrig kuj nce, ua rau muaj kev puas tsuaj ntau dua. Txawm hais tias cov thev naus laus zis zoo li Atlas Copco lub casing drilling pab txo cov kev ntxhov siab, lawv nce nqi thiab tsis daws qhov teeb meem kiag li, yog li txwv kev xyaum lub zog tso zis. Piv txwv li, thaum lub COP4050 lub zog yog ntsuas ntawm 40 kW, tsuas yog 30 kW yog siv rau qhov tob tob drilling kom txo qis kev ntxhov siab ntawm cov khoom siv.

③Borehole Deviation: Laum rods ua rau ob qho tib si cuam tshuam lub zog thiab lub zog, ua rau khoov thiab deformation, uas txo qhov tseeb ntawm qhov borehole.

3. Qhov zoo ntawmDown-the-Hole (DTH)Kev xyaum

① Tsis muaj hluav taws xob xa hluav taws xob poob: Lub rauj cuam tshuam ncaj qha rauxyaum me ntsis, tshem tawm qhov xav tau rau kev cuam tshuam lub zog hloov pauv ntawm lub laum pas nrig, kom ntseeg tau tias qhov drilling ceev tsis hais qhov tob.

② Ncaj Boreholes: Lub laum pas nrig muaj kev nruj nruj, tsis raug cuam tshuam rau lub zog, thiab xa cov torque nkaus xwb nrog tsawg kawg nkaus axial siab. Qhov no tiv thaiv kev khoov thiab deformation, ua kom cov boreholes ncaj thiab du. DTH xyaum ua tau zoo dua nyob rau hauv kev sib tsoo, inclined strata, los yog sib txawv pob zeb hardness.

③ Kev tshem tawm cov khib nyiab zoo: Lub zog nruab nrab yog ob npaug ntawm qhov nruab nrab ntawm qhov dej ntws tawm, ntxuav lub qhov dej kom huv thiab tsis txhob tho ntau dhau.

④ Tsis tshua muaj suab nrov: Txij li thaum muaj kev cuam tshuam tshwm sim ntawm lub qhov dej hauv qab, lub suab nrov qis duatop-hammer xyaum.

⑤ Kev siv dav dav: Tsuas yog cov qauv muag muag heev, DTH xyaum ua haujlwm tau zoo hauv txhua hom pob zeb, hla cov pob zeb rau saum toj kawg nkaus hauv qhov ua tiav borehole txoj kab uas hla thiab qhov tob.

Muab cov txiaj ntsig zoo no, DTH drilling yog dav suav tias yog qhov kev xaiv zoo tshaj plaws, nrog 90% ntawm British quarries siv txoj kev no.

4. Qhov tsis zoo ntawm Pneumatic DTH Drills

① Tsis tshua muaj siab thiab lub zog: Lub ntsiab drawback ntawm pneumatic DTH xyaum yog lawv cov cua tsis tshua muaj siab thiab tso zis zog, ua rau qeeb drilling ceev. Thaum kev nce qib tau nce cua siab mus rau 2.5 MPa, qhov no tseem nyob deb ntawm qhov hydraulic siab ntawm pob zeb xyaum. Tsis tas li ntawd, lub tshuab cua compressors siab yog kim, yuav tsum muaj lub zog siab tsav, tsim suab nrov ntau, thiab poob kev ua haujlwm zoo hauv qhov chaw siab.

② Kev siv hluav taws xob tsawg: Pneumatic DTH xyaum siv peb zaug ntau zog ib meter drilled dua li hydraulic pob zeb xyaum.

5. Kev siv ntawm HydraulicDTH rauj

Txhawm rau muab cov txiaj ntsig zoo ntawm hydraulic pob zeb xyaum ua haujlwm (siab siab thiab ua haujlwm) thiab DTH xyaum ua haujlwm (txoj kab ncaj nraim), Lub Tebchaws Yelemees Hausherr tau tsim "Rapid Hydraulic DTH Drill" thaum ntxov 1990s. Ob qho tib si nws cov kev sib hloov thiab kev cuam tshuam mechanisms yog hydraulically tsav. Lub rauj nta ob kab roj rau kev muab khoom thiab xa rov qab. Kev xyaum nrawm muaj nyob rau hauv peb txoj kab uas hla: 90 mm, 115 mm, thiab 150 mm, haum rau boreholes nrog diameters ntawm 100–125 mm, 127–156 mm, thiab 168–230 mm, ntsig txog.

Kev sib piv ntawm Rapid thiab Hausherr's HBM80S pneumatic DTH xyaum qhia tau hais tias, rau qhov zoo tib yam borehole txoj kab uas hla (125 hli) thiab qhov tob (36 m), Kev nrawm nthuav tawm cov txiaj ntsig tseem ceeb ntawm kev lag luam nrog qis zog ntawm lub cav, roj noj, thiab lubrication roj noj piv ntawm 0.46, 0.47, thiab kev hwm.

6. Daim ntawv thov ntawm Hydraulic Dej-Powered Rauj

Sweden's LKAB thiab nws cov chaw muag khoom G-Drill tau tsim "Wassara Water-Powered DTH Hammer" nyob rau xyoo 1980s. Siv cov dej lim dej ua qhov nruab nrab, nws ua haujlwm ntawm qhov siab ntawm 18-20 MPa thiab ntws tus nqi ntawm 200-300 L / min. Nrog nruab nrab drilling ceev ntawm 850 mm / min, nws outperforms pneumatic hammers (feem ntau 320 mm / min).

Lub Wassara rauj tau pom qhov ua tau zoo tshwj xeeb, xws li txo qis qhov sib txawv ntawm qhov borehole los ntawm ib nrab thiab nce cov khoom tsim tau los ntawm 86% hauv LKAB mines. Cov ntawv thov suav nrog subway grouting hauv New York thiab geothermal drilling hauv Switzerland, qhov chaw nws ua tiav 599.8 m borehole hauv 5 hnub, piv rau 3 lub lis piam nrog kev xyaum ua teb.

7. Sib piv: Hydraulic Dej-Powered vs. Hydraulic Fluid-Driven rauj

Dej-Powered Hammers: Siv cov dej zoo li qub, ua tiav kev ua haujlwm siab dua thiab drilling ceev, haum rau kev siv tsuas.

Dej-Driven Hammers: Siv cov dej dynamic siab thiab feem ntau txwv rau geological drilling nrog qis zog (0.5-4 MPa) thiab efficiency (

8. Cov lus xaus

Hydraulic thiab dej-poweredDTH raujmuab cov txiaj ntsig zoo ntawm qhov zoo tshaj plaws rauj hydraulic xyaum thiab pneumatic DTH hammers, muab kev siv hluav taws xob tsawg, ceev drilling ceev, thiab ncaj boreholes. Kev sib koom ua ke nruab nrab rau lub zog thiab cov dej ntws tawm ua rau cov dej-powered hammers muaj kev cia siab rau kev txhim kho yav tom ntej.