Ci gaba a Fasahar Hakika Ruwa da Ruwa na DTH.

1. Amfanin Ruwan Ruwan Ruwa na Ruwa

① Babban Matsi na Ruwa: Yawanci yana farawa daga 10 zuwa 25 MPa, tare da yanayin zuwa mafi girman iyaka. Wannan ya ninka sau da yawa zuwa dozin fiye da matsa lamba na pneumatic.

② Babban Fitarwa: Gabaɗaya tsakanin 5 zuwa 20 kW. Wasu samfura, irin su COP4050 ta ATLAS da HL2000 ta TAMROCK, sun kai 40 kW, yayin da HL4000 ya kai har zuwa 70 kW.

③ Gudun Hakowa Mai Sauri: Yawancin lokaci yana samun ƙimar hakowa na 1-3 m/min.

④ Babban Haɓakawa: Ingantacciyar haɓakar dutsen dutsen na'ura mai ƙarfi da kansu na iya kaiwa 50%, kuma famfo na hydraulic sun fi dacewa fiye da masu ɗaukar iska. Sakamakon haka, yawan amfani da makamashi ya fi na tsarin haƙar dutsen huhu.

2. Rashin Amfanin Ruwan Ruwa na Ruwan Ruwa

① Rashin Isar da Makamashi: Tun da dutsen rawar dutsen yana a saman sandar rawar soja, asarar wutar lantarki tana ƙaruwa tare da zurfin rami mafi girma, yana haifar da raguwar saurin hakowa.

M Grow sk na sa: a matsayin ikon hydraulic Rock yana ƙaruwa, damuwa a kan sandar rawar jiki kuma yana ƙaruwa, jagoranta zuwa mafi girman lalacewa. Ko da yake fasahohi kamar hakar casing na Atlas Copco suna taimakawa wajen rage damuwa, suna ƙara tsada kuma suna kasa magance matsalar gaba ɗaya, ta haka suna iyakance ƙarfin fitarwa na rawar soja. Misali, yayin da aka kimanta ikon COP4050 a 40 kW, kawai 30 kW ana amfani dashi don hako rami mai zurfi don rage damuwa akan kayan aiki.

③Bautar rijiyar burtsatse: Sandunan hakowa suna jure duka tasirin tasiri da karfin tsiya, wanda ke haifar da lankwasa da nakasu, wanda ke rage daidaiton rijiyoyin.

3. AmfaninDown-the-Hole (DTH)Drills

① Babu Asarar Isar da Makamashi: Guma yana tasiri kai tsayerawar jiki, kawar da buƙatar tasirin tasirin makamashi ta hanyar rawar soja, tabbatar da daidaitaccen saurin hakowa ba tare da la'akari da zurfin ba.

② Rijiyoyin burtsatse madaidaici: sandar rawar soja tana da tsattsauran ra'ayi, ba a ƙarƙashin tasirin tasirin tasiri, kuma yana watsa juzu'i kawai tare da ƙarancin axial matsa lamba. Wannan yana hana lankwasawa da lalacewa, yana tabbatar da madaidaiciyar rijiyoyin burtsatse masu santsi. Ayyukan DTH sun fi yin aiki mafi kyau a cikin ɓangarorin ɓangarorin, madaidaitan madauri, ko taurin dutse mai canzawa.

③ Ingantacciyar Cire tarkace: Matsakaicin wutar lantarki ya ninka azaman matsakaiciyar ruwa, tsaftace rijiyar burtsatse sosai tare da guje wa hakowa fiye da kima.

④ Karancin Hayaniyar: Tun da tasiri yana faruwa a gindin rijiyar burtsatse, amo yana da ƙasa da ƙasa sosaisaman guduma drills.

⑤ Faɗaɗɗen Aiwatar da Aiwatarwa: Ban da gyare-gyare masu laushi, DTH drills yana aiki da kyau a cikin kowane nau'in dutsen, wanda ya zarce manyan hammata a cikin diamita da zurfin rijiyar burtsatse.

Idan aka ba da waɗannan fa'idodi, ana ɗaukar hakowa na DTH a matsayin mafi kyawun zaɓi, tare da kashi 90% na ƙawancen Biritaniya sun ɗauki wannan hanyar.

4. Rashin amfani da Pneumatic DTH Drills

① Karamin matsin lamba da iko na farko: Dokar farko ta ciwon jiki shine ƙarancin zafin jiki da fitarwa, yana haifar da saurin hakofa. Duk da yake ci gaba ya tayar da karfin iska zuwa 2.5 MPa, wannan har yanzu yana da nisa a ƙasa da matsa lamba na dutsen dutse. Bugu da ƙari, matsa lamba mai ƙarfi na iska suna da tsada, suna buƙatar tuƙi mai ƙarfi, suna samar da ƙarin amo, kuma sun rasa inganci sosai a wurare masu tsayi.

② ƙarancin ƙarfin ƙarfin aiki: pnnatic dhricres cinye sau uku mores a kowace mita ya bushe sama da dutsen dutsen.

5. Aikace-aikace na HydraulicFarashin DTH

Don haɗa fa'idodin na'ura mai aiki da karfin ruwa (matsi da inganci) da kuma DTH drills (rijiyoyin burtsatse madaidaiciya), Hausherr na Jamus ya haɓaka "Rapid Hydraulic DTH Drill" a farkon 1990s. Dukkanin jujjuyawar sa da hanyoyin tasirin sa ana sarrafa su ta hanyar ruwa. Guduma yana da layukan mai guda biyu don samarwa da dawowa. Ana samun rawar gaggawa a cikin diamita guda uku: 90 mm, 115 mm, da 150 mm, dace da rijiyoyin burtsatse masu diamita na 100-125 mm, 127-156 mm, da 168-230 mm, bi da bi.

Gwajin kwatancen tsakanin Rapid da Hausherr's HBM80S pneumatic DTH drill ya nuna cewa, ga diamita iri ɗaya na rijiyoyin burtsatse (125 mm) da zurfin (36m), Rapid ya nuna fa'idodin tattalin arziƙi tare da ƙarancin injin injin, amfani da mai, da ƙimar amfani da mai na 0.46, 0.46, da mutunta 0.47

6. Aikace-aikace na Hammers na Ruwa na Ruwa

LKAB ta Sweden da nata G-Drill sun haɓaka "Wassara Water-Powered DTH Hammer" a ƙarshen 1980s. Yin amfani da ruwa mai tsaftataccen ruwa a matsayin matsakaici, yana aiki a matsa lamba na 18-20 MPa da yawan gudu na 200-300 L / min. Tare da matsakaita gudun hakowa na 850 mm/min, ya zarce hammata masu huhu (yawanci 320 mm/min).

Gudumawar Wassara ta nuna kyakkyawan aiki, kamar rage karkatar da rijiyoyin burtsatse da rabi da haɓaka yawan aiki da kashi 86 cikin ɗari a ma'adinan LKAB. Aikace-aikacen sun haɗa da grouting na jirgin karkashin kasa a New York da kuma aikin hako ƙasa a Switzerland, inda aka kammala rijiyar burtsatse mai tsawon mita 599.8 a cikin kwanaki 5, idan aka kwatanta da makonni 3 tare da aikin rotary na gargajiya.

7. Kwatanta: Ƙarfin Ruwan Ruwa da Ruwan Ruwa vs. Hammers Masu Korar Ruwan Ruwa

Hammers Mai Ruwa: Yi amfani da matsa lamba na ruwa, samun babban inganci da saurin hakowa, dacewa da aikace-aikacen hakar ma'adinai.

Hammers-Driven Fluid: Yi amfani da matsa lamba na ruwa kuma gabaɗaya ana iyakance su zuwa hakowa na ƙasa tare da ƙananan matsi (0.5-4 MPa) da inganci (

8. Kammalawa

Na'ura mai aiki da karfin ruwa da ruwaFarashin DTHhada da fa'idodin manyan hammata na hydraulic drills da hammata na DTH mai huhu, yana ba da ƙarancin amfani da makamashi, saurin hakowa da sauri, da madaidaiciyar rijiyoyin burtsatse. Haɗin kai don samar da wutar lantarki da zubar da ruwa yana sa hamma masu ƙarfi da ruwa su zama masu alƙawarin ci gaba a nan gaba.