Blast Hole Drill Pipe

Tsanangudzo Pfupi

DTH drill rod/drill pombi yakakwira pressure yekuchera, kuchera matsime emvura, migodhi

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Pombi yekuboora ipombi yesimbi ine simba guru inoshandiswa pakuchera.Zvichienderana nenzira yekuchera uye chinangwa chekuchera, mapaipi anouya mukukora uye kureba kwakasiyana, uye kureba kwakajairika kuri 3-10 metres.Mapombi ekudhira anobatanidzwa pamwe chete rimwe nerimwe sezvo chibooreso chinoramba chichidzika mukati medombo.Pamwe chete, mapaipi anoumba chibooreso chetambo, chinogona kuwedzera makiromita akati kuti pasi pasi.

Imwe neimwe pombi yekuchera ine zvikamu zvitatu zvakabatanidzwa pamwe chete, chikamu chepakati uye zvidimbu zviviri zvekupedzisira.Chidimbu chekupedzisira chine murume ("pini") kana yechikadzi ("bhokisi") shinda, iyo inobvumira kubatana kwemapombi maviri ekuboorera.Iyo yese tambo yekubooresa inoiswa kune yakanyanyisa mitoro panguva yekuchera, uye shinda inogara iri chikamu chakakosha mupombi yega yega.Kana nokuda kwechikonzero chipi zvacho shinda yechirume neyechikadzi isinganyatsopindirana, shinda yacho ingangodambuka uye ucharasikirwa netambo yako yese yekuboora.

Size		Nominal mass Lb/ft	Yakaverengerwa uremu mhando		Kukora kwemadziro
mu.	mm	Nominal mass Lb/ft	lb/ft	kg/m	mu.	mm
2 3/8	60.3	6.65	6.26	9.32	0.28	7.11
2 7/8	73	10.4	9.72	14.48	0.362	9.19
3 1/2	88.9	9.5	8.81	13.12	0.254	6.45
3 1/2	88.9	13.3	12.31	18.34	0.368	9.35
3 1/2	88.9	15.5	14.63	21.79	0.449	11.4
3 1/2	88.9	15.5	14.63	21.79	0.449	11.4
4	101.6	14	12.93	19.26	0.33	8.38
4 1/2	114.3	13.75	12.24	18.23	0.271	6.88
4 1/2	114.3	16.6	14.98	22.31	0.337	8.56
4 1/2	114.3	20	18.69	27.84	0.43	10.92
5	127	16.25	14.87	22.15	0.296	7.52
5	127	19.5	17.93	26.71	0.362	9.19
5	127	19.5	17.93	26.71	0.362	9.19
5	127	25.6	24.03	35.79	0.5	12.7
5	127	25.6	24.03	35.79	0.5	12.7
5 1/2	139.7	21.90	19.81	29.51	0.361	9.17
5 1/2	139.7	24.70	22.54	33.57	0.415	10.54