Products Description
LEANOMS
A DTH Drill Rock Bit is a specialized drilling tool used in the mining, construction, and oil and gas industries for drilling holes in hard rock formations. It is commonly used in applications where conventional drilling methods might be less effective due to the toughness of the rock.
The DTH drilling technique involves using compressed air to power the drilling process. Here's how it works:
Drill Rig: A drill rig is used to provide the necessary power and support for the drilling operation. The rig consists of a rotary mechanism to turn the drill string and a mechanism to feed the bit into the rock.
Drill String: The drill string is a series of connected pipes that transmit the rotational force from the rig to the drilling bit at the bottom.
DTH Drill Bit: The DTH Drill Rock Bit is the cutting element that actually breaks and grinds the rock. It is attached to the bottom end of the drill string. The DTH Drill Rock Bit has various tungsten carbide buttons or inserts that create the cutting action.
Compressed Air: Compressed air is delivered to the DTH Drill Rock Bit through the drill string. This high-pressure air serves two main purposes:
It powers the rotation of the DTH Drill Rock Bit, which in turn grinds and breaks the rock.
It flushes out the rock cuttings and debris from the hole, keeping the hole clear for drilling.
Hammering Action: The DTH Drill Rock Bit is designed to produce a hammering action as it rotates. This combination of rotation and hammering creates an effective cutting and drilling process, allowing the bit to penetrate hard rock formations.
Rock Cuttings Removal: The compressed air not only helps with the drilling process but also carries the rock cuttings to the surface. They are expelled from the hole and collected for disposal or analysis.
DTH drilling offers several advantages, including high drilling rates, efficient performance in hard rock, and suitability for various hole sizes. It is commonly used in mining for blast hole drilling, foundation drilling, water well drilling, and other applications where drilling through hard rock is required.
It's important to note that DTH drilling is just one of many drilling techniques available, each with its own advantages and limitations. The choice of drilling method depends on factors such as the type of rock, drilling depth, required hole diameter, and project goals.
Specification
LEANOMS
Technical Parameters Of QL60 DTH Bits
| Diameter | Gauge Buttons (mm) |
Front Buttons(mm) | Weight(KG) | Part Number | ||||
| mm | Inch | Flat Face | Convex Face | Concave Face | Face Type | |||
| 165 | 5 1/2 | Φ18*8 | Φ16*8 | / | / | Flat Face | 23.8 | LR-QL60-165FF |
| 165 | 5 1/2 | Φ18*8 | Φ16*4 | Φ16*4 | / | Convex Face | 23.6 | LR-QL60-165CV |
| 165 | 5 1/2 | Φ18*8 | Φ16*4 | / | Φ15*4 | Concave Face | 23.3 | LR-QL60-165CC |
| 171 | 6 3/4 | Φ18*8 | Φ16*6 | / | Φ16*4 | Concave Face | 24.0 | LR-QL60-171CC |
| 178 | 7 | Φ18*8 | Φ16*6 | / | Φ16*4 | Concave Face | 24.6 | LR-QL60-178CC |
| 190 | 7 1/2 | Φ18*10 | Φ16*8 | / | Φ16*5 | Concave Face | 26.1 | LR-QL60-190CC |
