Investigation Sample Coring 295mm Hole Diameter 200 m Depth Engineering Drilling Rig Machinery
GK 200 Engineering Drilling Rig Description
GK-200 mobile drilling machine is widely used and hydraulic feeding , which has the characteristics of large power, large lifting force (2T) and high transmission torque.200 meters depth ,300mm hole diameter both for water well drilling and exploration.
GK 200 Engineering Drilling Rig Technicals
Drill rig specification | |
Drilling depth | 200m |
Drilling Diameter | 91mm,110mm,130mm,150mm,300mm |
Drilling rod diameter | 50mm |
Drilling Angle | 90°-75° |
Dimensions(L×W×H) | 1750×850×1300 (mm) |
Weight | 880kg/set |
Swivel Head | |
Spindle Speed | 115, 230, 505, 790, 1010 r/min |
Spindle stroke | 450mm |
Spindle Dia. | Φ59mmx53mmx4350mm Kelly rod |
Upward displacement speed of drilling vertical spindle | 0.05m/s |
Downward displacement speed of drilling vertical spindle | 0.067m/s |
Spindle pull-down max | 15KN |
Spindle lifting capacity max | 25KN |
Vertical maximum output torque | 1.5KN.m |
Hoist | |
Max. Lifting capacity(single rope) | 20KN.m |
Lifting rotating speed | 20; 40; 90; 168r/min |
Hoisting drum linear velocity (two levels) | 0.17; 0.35; 0.73; 1.5m/s |
Drum Diameter | 140mm |
Wire rope diameter | 9.3mm |
Wire rope capability | 40m |
GK 200 Engineering Drilling Rig Advantages
1,GK-200 is a low speed large torque portable hydraulic feed drilling machine2, Drilling rig used in the railway, electricity, transportation, bridges, buildings, engineering geology of dam Foundation of exploration3, Geological core drilling and exploration4, Small Grouting Confucius, blast hole drilling5, Small water well drilling6, The rig has a hydraulic feeding mechanism and improve drilling efficiency, reduce labor intensity7, The rig is equipped with an upper spherical jaw holding mechanism and hexagonal drive drilling rod which can be replaced without shutdown lever is efficient and easy to operate, safe and reliable.8, equipped with hole-bottom pressure gauge indicates pressure, easy to handle holes9, Handles centralized, convenient operation10, Rig compact structure, small volume, light weight, high degree of decomposition, easy to move, suitable for working in Plains or mountain areas.
Core Tube Installation
Buckle the lifter into the groove of the variable diameter joint, move the right handle of the winch to take the pad fork, take out the perforated pipe, install the core tube, lift the drilling tool to the top of the borehole, move the left handle of the winch continuously, and lower the drilling tool into the borehole at a uniform speed. When the groove of the variable diameter joint is close to the inlet, use the pad fork to block and remove the lifter.
Drilling Method Of Pebble Layer
1 conventional drilling methods and characteristics
At present, conventional drilling methods such as diamond drilling, clean water flushing, pipe reaming and mud circulation are generally used, while rotary drilling, dry drilling, pipe following, percussion, steel wire drill and other coring methods are used for core mining.
The disadvantages of these methods in drilling pebble layer are large drilling load, many accidents in the hole, low drilling efficiency and poor coring quality.
2. Drilling method and characteristics of diamond drilling tool combined with vegetable glue washing fluid
In order to meet the requirements of drilling in various hard and fragile formations, a series of single acting double barrel diamond drilling tools combined with vegetable gum washing fluid have been specially developed. It is also a relatively advanced method of drilling progressive cores in such formations at present. This method is a drilling process using vegetable gum as washing fluid and diamond as drilling tool.
The main characteristics of this process are small rotary resistance, high drilling efficiency, good coring quality, and strong ability to discharge sand and carry rock powder.
