180 Meters Water Well Rocky Borehole Drilling Machine Equipment
ST 180 Borehole Drilling Machine Description
This is a light weight, high efficient, multiple functional
drilling hole equipment.,180 meters ,optional hole diameters ,Which
is equipped with advanced structure widely used for drilling well,
farming irrigation well,geothermal air conditionhole and other
usage well hole, especially suitable for water intaking in
moutainnous area and rock layer.
ST 180 Borehole Drilling Machine Specification
| ST 180 Borehole Drilling Machine |
| Drilling depth | 180m |
| Drill rod caliber | 42mm |
| Hole diameter | 75mm |
| Drilling angle | 90°-75° |
| Dimensions | 2120*875*1480mm |
| Weight(without power unit) | 750kg |
| Swivel head |
| Spindle speed | 71,182,310,790r/min |
| Spindle stroke | 450mm |
| Upward displacement speed of idling vertical spindle | 0.05m/s |
| Downward displacement speed of idling vertical spindle | 0.067m/s |
| Spindle pull-down max. | 15KN |
| Spindle lifting capacity max. | 25KN |
| Spindle max.torque | 1.5KN.m |
| Brake diameter | 278mm |
| Brake belt width | 50mm |
| Hoist |
| Max. lifting capacity | 20KN |
| Hoisting drum revolution | 20,39,85,170r/min |
| Drum diameter | 140mm |
| Wire rope diameter | 9.3mm |
| Wire rope capability | 40m |
| Oil pump | |
| Model | YBC-20/125 |
| Rated presure | 12.5Mpa |
| displacement | 20ml/r |
| rated speed | 800-2500r/min |
| Water pump |
| Displacement max. | 95(77)L/min |
| Working pressure max. | 1.2Mpa |
| Rated pressure | 0.7Mpa |
| Liner diameter | 80mm |
| Piston stroke | 100mm |
| Power(diesel engine or motor) |
| Rated power | 16.2KW |
| Rated speed | 2200r/min |
| Electric motor | Y160M-4 |
| Rated power | 11Kw |
| Rated speed | 1460r/min |
ST 180 Borehole Drilling Machine Features
With hydraulic automatic feeding device, elevated drilling
efficiency.
Large torque and drilling diameter.
With a spherical jaw holding mechanism and the rod replacement with
out breakdown, high efficiency.
Compact structure, small volume, light weight, high detacability,
easy transportation and suitable for operations in plains or
mountain areas.
ST 180 Borehole Drilling Machine Application
Our machines can be applied to various countries in the world,
suitable for various scenarios, various geological scenarios
including deserts, swamps, grasslands, mountains, orchards, etc.especially suitable for water intaking in moutainnous area and rock
layer. The drill adopts newest hydraulic technology, mating with
big torque hydraulic motor rotation and large bore hydraulic oil
cylinder driven, lower the labor, cut down assist time, improve
efficiency of construction and project quality.
Different Geological Structures
Different geological structures are often encountered in the
drilling process of drilling machine. In order to achieve good
drilling effect, it is necessary to understand the drilling methods
of different geological layers
For example, when drilling gypsum layer, the drilling fluid shall
be pretested first. Calcium ions can be removed by adding anti
gypsum treatment agents such as soda ash calcium removal and
viscosity reducer. At the same time, viscosity reducer with strong
calcium resistance shall be used to control viscosity cutting, and
materials such as fluid loss reducer and anti sloughing agent shall
be supplemented to maintain the stability of the performance of the
drilling fluid, so as to improve the anti gypsum pollution ability
of the drilling fluid in the drilling machine
In case of quicksand formation, the viscosity of drilling fluid
must be increased and the bentonite content in the drilling fluid
must be increased. Generally, it is required to be greater than
10%. A single seal is added to enhance the wall building property
of the drilling fluid. In engineering, by appropriately reducing
the displacement and reducing the erosion of convective sand layer,
the well section must be closed with thick mud with viscosity
greater than 80s before tripping out, so as to ensure the smooth
running of drilling equipment and electric logging casing
Precautions for drill bit during drilling of water well drill
Bit plays an important role in well drilling, and the quality of a
bit directly affects the efficiency and drilling quality of the
water well drill
When the drill bit is drilling, the central drilling tool needs to
be replaced in time. First, the hole bottom needs to be cleaned,
and then the residue at the hole bottom needs to be blown away.
After the drill bit stops rotating, the drilling tool in the water
well drill shall be slowly lifted up. When the lifting force is
just enough to lift the drilling tool, it is most appropriate. It
is prohibited to forcefully lift the drilling tool during drilling.
