Kev nthuav qhia
Nyob rau hauv lub chav kawm ntawm kev tsim loj txoj kab uas hla tob-qhov mining txoj kev, ob hom kev xyaum, down-the-qhov xyaum xyaum thiab teb drills-feem ntau yog siv rau boring loj txoj kab uas hla tob qhov. Txog rau tam sim no, tom qab ntau xyoo ntawm txoj kev loj hlob, rotary drills tsuas yog loj dua nyob rau hauv txoj kab uas hla, muaj zog dua thiab ntau dua drilling qhov tob piv rau down-the-qhov xyaum xyaum. Lawv tau ua tiav cov txiaj ntsig zoo hauv kev ua haujlwm zoo thiab drilling nruab nrab-nyuaj pob zeb, dav siv hauv kev tshawb fawb engineering thiab kev txhim kho engineering.
Txawm li cas los xij, nyob rau hauv nruab nrab-nyuaj pob zeb, yog hais tias txoj kab uas hla ntawm lub qhov drilling yog tsawg tshaj li 250 hli, kev xyaum tau ua pov thawj tias lub neej ntawm ib tug rotary laum me ntsis yuav tsis zoo tagnrho, thiab lub neej ntawm ib tug laum ntsis rau ib tug down-the- qhov laum yog qhov zoo dua piv nrog qhov kev xyaum ua teb. Tsis tas li ntawd, qhov kev xyaum qis qis muaj ob hom: pneumatic thiab hluav taws xob. Piv nrog rau kev xyaum siv hluav taws xob, lub tshuab pneumatic laum muaj lub zog ntau dua rau kev drilling rau hauv pob zeb tsim thiab tuaj yeem xyaum qhov loj dua. Ntawm qhov tod tes, qhov zoo ntawm kev xyaum siv hluav taws xob piv rau pneumatic laum yog tias cov txheej txheem tiav yuav tsum muaj tsawg tus lej thiab qhov hnyav, uas ua rau kev thauj mus los yooj yim dua.
Qhov zoo ntawm Down Qhov Drilling Rigs
Nyob rau hauv kev sib piv, down-the-qhov xyaum xyaum muaj yim yam nram qab no, coj cov nram qab no tshiabdown-the-qhov qhib qhov drill rigpiv txwv:
1. Tsis tas yuav xaiv hom pob zeb: Down-the-hole drills tuaj yeem siv los laum blastholes hauv cov pob zeb mos, tawv, tsis tshua muaj pob zeb thiab ntau hom pob zeb sib sau ua ke.
2. tuaj yeem laum oblique qhov lossis qhov nyob rau txhua qhov kev taw qhia: Down-the-hole xyaum tsis tas yuav siv lub siab axial siab rau pob zeb thaum lub sijhawm ua haujlwm, yog li cov tho uas tuaj yeem laum qhov hauv txhua qhov kev taw qhia tuaj yeem tsim, uas coj tau cov txiaj ntsig zoo. rau kev khiav hauj lwm xws li txoj kab nqes kev kho ntawm qhib-qhov mines, graded mining, formulation ntawm tsim nyog pob zeb drilling thiab blasting txheej txheem tsis, txo qhov kev puas tsuaj Kev cuam tshuam ntawm seismic nthwv dej rau hauv av thiab kev txhim kho blasting zoo.
3. tuaj yeem laum lub qhov ncaj: Vim tias qhov cuam tshuam ntawm qhov kev xyaum ntawm qhov qis qis yog luv thiab nrawm, nws tuaj yeem txo qhov cuam tshuam ntawm cov pob zeb tawg, inclined pob zeb formations, tawg thiab qhov tsua, kom lub qhov ncaj tuaj yeem drilled thiab cov qhov phab ntsa tuaj yeem khaws cia.
4. Qhov drilling ntau yam ntawm lub laum yog loj: Tam sim no, down-the-qhov drills tuaj yeem xyaum blastholes nrog txoj kab uas hla ntawm 80 mus rau 762 hli.
5. Cov pa phem rau ib puag ncig yog qhov me me, thiab nws tuaj yeem muab qhov chaw ua haujlwm zoo rau tus neeg teb xov tooj: cov pa roj ntawm lub qhov drilling rig impactor ntxuav lub hauv qab ntawm lub qhov los ntawm qhov laum me ntsis, thiab cov hmoov pob zeb tau tawm ntawm qhov. annular qhov chaw ntawm lub laum pas nrig thiab lub qhov phab ntsa, thiab yog ua tiav los ntawm cov plua plav tshem tawm mechanism rau hauv av.
6. Lub neej ntev ntawm lub laum pas nrig: lub laum pas nrig ntawm lub qhov drilled muaj qhov ceev thiab me me load, thiab tus nqi ntawm lub laum pas nrig yog tsawg thiab lub neej ntev.
7. Kev kub ceev drilling: Lub impactor ntawm qhov drilling rig nce qhov drilling ceev los ntawm ntau yam nrog rau qhov nce ntawm huab cua siab.
8. Qhov sib sib zog nqus tau drilled: Vim hais tias lub down-lub-qhov laum tsuas yog xav tau qhov tsim nyog axial siab, ib tug me me xyaum (lub teeb yuag) yuav siv tau rau tho qhov tob, yog li txo cov nyiaj txiag poob ntawm kuv depletion.
