I-PLATO isesimweni sokuhlinzeka amaklayenti ngezingxenye ezigcwele ezigcwele zochungechunge lwamathuluzi okumba i-DTH, okuhlanganisa izando ze-DTH, izingcezu (noma izingcezu zamathuluzi okusebenza alinganayo), ama-adaptha amancane, amapayipi okubhoboza (izinduku, amashubhu), izando namabhithi e-RC, ukubhola odongeni olukabili. amapayipi namabhentshi okuphuma kwesando nokunye. Amathuluzi ethu Okugaya i-DTH nawo aklanywe kahle futhi enzelwe izimayini, izimboni zokumba imithombo yamanzi, ukuhlola, ukwakha kanye nobunjiniyela bomphakathi.

Indlela ye-down-the-hole (i-DTH) ekuqaleni yasungulwa ukuze ibhoboze izimbobo ezinobubanzi obukhulu iye phansi ezinhlelweni zokubhoboza phezulu, futhi igama layo lasuka eqinisweni lokuthi indlela yokushaywayo (isando se-DTH) ilandela kancane kancane iye phansi emgodini. , esikhundleni sokuqhubeka nokudla njengama-drifters ajwayelekile nama-jackhammer.

Kuhlelo lokubhoboza lwe-DTH, isando nebhithi kuwumsebenzi oyisisekelo kanye nezingxenye, futhi isando sitholakala ngqo ngemuva kwe-drill bit futhi sisebenza phansi emgodini. I-piston ishaya ngokuqondile indawo ethinta ibhithi, kuyilapho isikhwama sesando sinikeza isiqondiso esiqondile nesizinzile sebhithi yokubhoboza. Lokhu kusho ukuthi awekho amandla omthelela axegayo kunoma yimaphi amalunga entambo yokubhoboza. Ngakho-ke amandla omthelela kanye nezinga lokungena lihlala lingashintshile, kungakhathaliseki ukujula kwembobo. I-drill piston inikwa amandla wumoya ocindezelwe olethwa ngezinduku ngengcindezi yokunikezela esukela kubha engu-5-25 (0.5-2.5 MPa / 70-360 PSI). Injini elula ye-pneumatic noma ye-hydraulic efakwe phezu kwerigi ikhiqiza ukuzungezisa, futhi ukusikwa okuguquguqukayo kufinyelelwa ngokukhipha komoya ophuma esando kungaba ngomoya ocindezelwe onomjovo wenkungu yamanzi noma ngomoya ojwayelekile wemayini oqoqa uthuli.

Amapayipi okubhoboza adlulisa amandla adingekayo okuphakelayo kanye ne-torque ejikelezayo kumshini womthelela (isando) nebhithi, futhi adlulisele umoya ocindezelwe wesando kanye nezinhlamvu ezishaywayo ngokuthi umoya okhipha umoya uvunguze imbobo uyihlanze futhi uthwale ukusikwa uye phezulu. umgodi. Amapayipi okubhoboza anezelwa entanjeni yokubhoboza ngokulandelana ngemva kwesando njengoba imbobo ijula.

I-DTH drilling iyindlela elula kakhulu kubasebenzisi yokubhoboza imigodi ejulile neqondile. Ebangeni lemigodi engu-100-254 mm (4” ~ 10”), ukumba i-DTH kuyindlela evelele yokumba namuhla (ikakhulukazi lapho ukujula kwembobo kungaphezu kwamamitha angu-20).

Indlela yokumba i-DTH ikhula ngokuduma, ngokukhula kuzo zonke izingxenye zohlelo lokusebenza, okuhlanganisa imbobo yokuqhuma, umthombo wamanzi, isisekelo, uwoyela negesi, amasistimu okupholisa kanye nokubhola amaphampu okushintshanisa ukushisa. Futhi izicelo kamuva zatholwa ngaphansi komhlaba, lapho isiqondiso sokumba ngokuvamile sibheke phezulu esikhundleni sokuya phansi.

Izici eziphambili kanye nezinzuzo zokubhola kwe-DTH (ikakhulukazi qhathanisa nokubhola kwesando esiphezulu):

1.Ububanzi obubanzi bezimbobo ezinosayizi, kufaka phakathi ubukhulu bembobo obukhulu kakhulu;

2.Ukuqonda kahle kwembobo ngaphakathi kokuchezuka okungu-1.5% ngaphandle kwemishini eqondisayo, enembe kakhulu kunesando esiphezulu, ngenxa yomthelela wokuba sembobeni;

3.Ukuhlanzwa kahle kwezimbobo, kunomoya omningi wokuhlanza imbobo kusuka esando;

4.Ikhwalithi yembobo enhle, enezindonga ezibushelelezi nezimbobo zokushaja kalula iziqhumane;

5. Ubulula bokusebenza nokugcinwa kahle;

6.Ukudluliswa kwamandla okusebenzayo kanye nekhono lokumba imbobo ejulile, ngokungena njalo futhi akukho ukulahlekelwa kwamandla emajoyini ngokusebenzisa intambo yokubhoboza kusukela ekuqaleni kuya ekupheleni kwembobo, njengesando esiphezulu;

7.Idala ukulengiswa kwemfucumfucu encane, ukuphuka okuncane kancane, i-ore pass embalwa kanye nokulengiswa kwe-chute;

8.Izindleko eziphansi ezintweni ezisetshenziswayo zokubhoboza, ngenxa yezintambo zokubhola azifakwa ngaphansi kwamandla okushaya njengoba ukubhola kwesando esiphezulu nempilo yentambo yokubhoboza inweba kakhulu;

9.Ingozi encishisiwe yokubhajwa ezimeni zamadwala aphukile kanye namaphutha;

10.Izinga eliphansi lomsindo endaweni yokusebenza, ngenxa yesando esisebenza phansi emgodini;

11.Amazinga okungena acishe alingane ngokuqondile nomfutho womoya, ngakho-ke ukuphinda kabili umfutho womoya kuzoholela ekungeneni cishe kabili.

I-Low Air Pressure DTH Drill Bit

I-Medium Air Pressure DTH Drill Bit

I-High Air Pressure DTH Drill Bit

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