Iindidi eziNtathu Zokugrunjwa kwamatye

Iindidi eziNtathu Zokugrunjwa kwamatye

Zintathu iindlela zokomba amatye - Ukomba ngokujikelezayo, i-DTH (ezantsi komngxuma) ukomba kunye nokugrumba ngehamile ephezulu. Ezi ndlela zintathu zifanelekile kwimisebenzi eyahlukeneyo yokumbiwa kwemigodi kunye nokusebenza kakuhle, kwaye ukhetho olungalunganga luya kubangela ilahleko enkulu.

Okokuqala, kufuneka sazi imigaqo yokusebenza kwazo.

Ukubhola okujikelezayo

Kwi-rotary drilling, i-rig inika uxinzelelo olwaneleyo lwe-shaft kunye ne-rotary torque. I-bit drills kwaye ijikelezisa etyeni ngaxeshanye, eyenza uxinzelelo lwempembelelo engatshintshiyo kunye neguquguqukayo kwilitye. Amasuntswana ajikelezayo kwaye asila ngokuqhubekayo emazantsi womngxuma ukwenza ilitye liqhekeke. Umoya ocinezelweyo phantsi koxinzelelo oluthile kunye nesantya sokuhamba sitshizwa ukusuka kumlomo ukuya ngaphakathi kumbhobho wokubhoboza, ukwenza i-slag ivuthelwe ngokuqhubekayo ukusuka ezantsi komngxuma ecaleni kwesithuba sonyaka phakathi kombhobho wokubhoboza kunye nodonga lonke ukuya ngaphandle.

Phantsi komngxuma (DTH) ukomba

Ukugrumba phantsi komngxuma kukuqhuba ihamile esemva kwentwana yokomba ngomoya ocinezelweyo ngombhobho wokubhoboza. I-piston ibetha i-bit ngokuthe ngqo, ngelixa i-cylinder yangaphandle yehamile inika isikhokelo esithe ngqo nesizinzileyo se-drill bit. Oku kwenza impembelelo yamandla ingalahleki kumalungu kwaye ivumela ukugrumba okunzulu kakhulu kwe-percussion.

Ngaphezu koko, amandla empembelelo asebenza kwilitye elisezantsi komngxuma, elisebenza ngokufanelekileyo, kwaye lithe ngqo kunezinye iindlela zokusebenza kokomba.

Kwaye i-DTH ifanelekele ngakumbi umngxuma omkhulu wokomba amatye aqinileyo, okhethekileyo kubulukhuni bamatye ngaphezulu kwe-200Mpa. Nangona kunjalo, kwilitye elingaphantsi kwe-200 MPa, ayiyi kuchitha amandla kuphela, kodwa kunye nokusebenza okuphantsi kokomba, kunye nokunxiba okunzulu kwi-drill bit. Kungenxa yokuba ngelixa i-piston yehammer ibetha, iliwa elithambileyo alikwazi ukufunxa impembelelo ngokupheleleyo, ethoba kakhulu ukusebenza kakuhle kokomba kunye ne-slagging.

Top Hammer Drilling

Amandla okubetha kwehamile ephezulu eveliswa yipiston yempompo kwi-hydraulic drilling rig, idluliselwa kwi-drill bit nge-adapter ye-shank kunye nombhobho wokubhobhoza.

Lo ngumahluko phakathi kokugrumba kwe-DTH. Ngeli xesha, inkqubo ye-percussion iqhuba ukujikeleza kwenkqubo yokomba. Xa i-stress wave ifikelela kwi-drill bit, amandla athunyelwa etyeni ngendlela yokungena kancinci. Ukudityaniswa kwale misebenzi kwenza imingxuma yokwemba kwilitye elinzima, kwaye icompressor yomoya yenza kuphela ukususwa kothuli kunye ne-slagging kwi-drilling ephezulu yehamile.

Ukudityaniswa kwale misebenzi kwenza imingxuma yokwemba kwilitye elinzima, kwaye icompressor yomoya yenza kuphela ukususwa kothuli kunye ne-slagging kwi-drilling ephezulu yehamile.

Amandla empembelelo aphinda-phindwa ngamaza eempembelelo kunye enza imveliso ye-percussive ye-drifter. Nangona kunjalo, ngokwesiqhelo, ukombiwa kwehamile ephezulu kusetyenziselwa ubukhulu bomngxuma ubukhulu be-127mm, kunye nobunzulu bomngxuma obungaphantsi kwe-20M, obusebenza ngokufanelekileyo.