What is DTH Drilling and Top Hammer Drilling?
For more information, please visit KSQ Technology.
DTH drilling, which stands for Down-the-Hole drilling, is a drilling technique used in various industries, including mining, construction, and oil and gas exploration. This method involves a hammer attached to the bottom of a drill string, and the hammer is equipped with drill bits that are capable of crushing rock. The drilling process is initiated at the surface, and the drill string with the hammer and bit is driven into the ground.
Top hammer drilling, also known as percussive drilling or down-the-hole (DTH) drilling, is a drilling technique commonly used in mining, quarrying, construction, and civil engineering applications. It involves a hammer-like mechanism located at the top of the drill string, delivering repeated percussive blows to the drill bit, enabling efficient drilling through various rock formations.
In top hammer drilling, a drill rig is used to position the drill string vertically or at an angle to the target drilling area. The drill string typically consists of several components, including the drill bit, drill rods, and a top hammer mechanism. The drill bit is attached to the bottom end of the drill string and is responsible for the actual rock penetration.
One:
While DTH Drilling and Top Hammer Drilling operate similarly, their impact forces differ:
DTH Drilling impact force acts on the hammer head---bit;
The Top Hammer Drilling impact force acts on the tail of the shank;
To prevent overkill, it is only necessary to consider the technical aspects of the job while evaluating its straightness and efficiency;
Two:
The Top Hammer Drilling typically has a hole depth of no more than 20 meters and a hole diameter of no more than 127 millimeters. The Top Hammer Drilling efficiency is pretty good when the hole depth is around 15 m.
The hole diameter of the borehole drilling apparatus is at least 105 mm. The hole diameter is bigger, the hole depth ranges from 10 to 45 meters, and the down-the-hole hammer is highly effective as compared to the Top Hammer Drilling.
In general, the DTH Drilling rig will produce a straighter hole. Of course, if the rig has a computer instrument display, the rig operator doesn't need to have any expertise, and computer control can more precisely manage the hole verticality.
Three:
Vast mines typically employ integrated hydraulic drilling rigs that are large in scope. The air compressor and drilling machine are separated by a 115 mm aperture and are often utilized in earth and stone applications. The split type's pricing benefit is that it is reasonably priced. Second, many earthmoving efforts don't entirely make the hills move uphill. The big integrated drilling rig can't go through if there isn't a machine to fix the road. The split rig is quite portable and practical.
Rock drills are often used on top of top hammer rigs, which typically employ medium and low wind-pressure compressors. More appropriate for working with rocks that have a hardness under 200 MPa.
A high-pressure air compressor with a down-the-hole drill bit attached is the down-the-hole drill. The more appropriate hard rock is above 200 MPa.
Both are appropriate for various mine activities. However, picking the incorrect one will cost you money. In addition to wasting fuel, a down-the-hole drilling rig's low operational efficiency will result in significant drill bit wear if it is used in a mine with pressure below 200 MPa. Because the rock texture is too soft, the down-the-hole drill bit "jumps" throughout the operation as the piston of the underground submersible moves. This has a significant impact on the effectiveness of both drilling and slagging. It also wastes the gas generated by the air compressor, causing a loss of energy.
Therefore, the correct choice of "tools used" is the key to improving production efficiency. Both rigs have their own advantages. Just look at how you choose. See what kind of working conditions you use. To achieve greater economic efficiency and minimum operating costs.
Therefore, increasing production efficiency requires making the right "tools utilized" choices. Each rig has benefits of its own. Just consider the decisions you make. Check the type of working environment you have. for increased economic efficiency and low running expenses.
For more information, please visit High Pressure DTH Hammer.
Leanoms is the leading global rock drilling tools productivity partner, integrating professional R&D, manufacturing, market, and service systems. Has over 20 years of experience in serving Mining, Quarry, Geothermal, Water wells, and other drilling industries from over 90 countries. And successfully help them increase productivity and reduce drilling costs.
Leanoms Rock Drilling Tools mainly includes DTH Hammer&Bit, Drill Pipe & HDD Drilling Tools, Top Hammer Rock Drilling Tools, Rotary Bit & Rotary Pipe and Sub, Core Drilling Tools & Drilling Rig Spare Parts. Our factory has passed API and I S O 9 0 0 1, I S O 1 4 0 0 1, I S O 4 5 0 0 1 Certification. We are confident in providing class-leading rock drilling tools for you.
We pay great attention to the quality of each product. Our factory covers an area of 45,000 square meters. We have a total of 819 employees including 746 skilled craftsmen, 30 Quality control inspectors, and 20 R&D engineers with over 10 years of experience. And our factory comprises 468 advanced equipment and 11 production processes. All finished products are inspected. We have the ability and experience to provide you with a full solution to help you reduce drilling costs and create greater productivity.
[et_pb_section background_color=\&#;#b7d0ed\&#; inner_shadow=\&#;off\&#; parallax=\&#;off\&#; transparent_background=\&#;off\&#; allow_player_pause=\&#;off\&#; parallax_method=\&#;off\&#; padding_mobile=\&#;off\&#; make_fullwidth=\&#;off\&#; use_custom_width=\&#;off\&#; width_unit=\&#;on\&#; make_equal=\&#;off\&#; use_custom_gutter=\&#;off\&#;][et_pb_row][et_pb_column type=\&#;4_4\&#;][et_pb_text admin_label=\&#;Drifter vs DTH\&#; background_layout=\&#;light\&#; text_orientation=\&#;left\&#; use_border_color=\&#;off\&#; border_color=\&#;#ffffff\&#; border_style=\&#;solid\&#;]
If you&#;re considering shopping for a brand new drill for your project or company, there are a broad variety of elements to require into thought before making the decision. Rock typology, budget, mining or quarrying site configuration, anticipated future applications, noise, desired hole dimensions, existing machines and available time are all factors that you simply should take under consideration before considering that purchase.
The mechanical distinction between the 2 sorts of drills is where the hammer is located within the equipment. The percussive devices (hammers) apply cyclical shock waves to the drill bits. In the case of down the hole drills, the percussive device is placed in direct contact with the bit, and is therefore &#;down-the-hole&#;. Top hammer rock drills, however, apply these repeated shock waves at the top of the drill string, outside of the bore.
While the main overall distinction between the 2 equipments is that top hammer rock drills are more efficient at depths up to 40 m deep and really faster, it\&#;s important to also consider the fact that the operating cost of DTH drills is often higher. Both kind of drill can be operated in soft and medium as well as hard ground while top hammers drifters perform better in very hard rock, particularly in fractured hard rock. Neither rock drill, however, has an excellent performance in soft ground, in this case the accurate choice would be to consider a rotary drill.
DTH drills are usually powered with pressurized air, the overall system efficiency is very low, becoming gradually lower when the drilling depth increases. Top hammer rock drills use hydraulic energy with a very high system efficiency which remain unchanged in any drilling conditions. But DTH drills are more mechanically efficient as less energy is lost in the transmission of shock waves from the hammer to the drill bit. While in top hammer rock drills, part of the energy is lost going down the way along the drill steel. This repeated shock waves from the hydraulic hammer on couplings and rods of top drifter drill strings gradually wear those components, meaning that top hammer drills usually require more consumables in the long run. The new drifter unique technology that Roxar has recently introduced contributes to avoid the fast wear of the drill steel thanks to the automatic adjustment of the frequency / energy ratio. With Roxar drifters, the stress on the drill string is drastically reduced allowing a longer life span of the shank adapter, the couplings, the rods and the drill bit.
Hydraulic top hammer drills are better adapted to narrow and short bores (up to 40 m), they drill quicker and much more efficiently than DTH drills. One important drawback of DTHs is that their minimum hole diameter is about 3.½\&#;, while top hammer drifters are able to drill holes with diameter as low as 1\&#;.
Because the drifter stays outside the hole while drilling, top hammer drills have no risk to remain stuck inside the hole during drilling operations, their life span is also much longer than DTH drills. Hydraulic top hammer rock drills are usually less accurate than DTH drills but they can incorporate anti-jamming devices like Roxar reverse percussion which reduce jamming risk.
Roxar experts are skilled and experienced in supporting equipment manufacturers and customers with selecting the perfect drill for their equipment or specific applications. We understand that each application is completely different and every customer has unique factors to consider when selecting a rock drill. Get in touch with Roxar and we will analyze your requirements and budget to find the best solution.
Learn More about Roxar hard rock drifters:
[button link=\&#;https://webomindapps.link/roxar/roxar/drifters/#ROXAR unique hydraulic system\&#;] Roxar Drifters[/button] [/et_pb_text][et_pb_text admin_label=\&#;Image attribution\&#; background_layout=\&#;light\&#; text_orientation=\&#;left\&#; text_font_size=\&#;7\&#; text_text_color=\&#;#8e8e8e\&#; text_line_height=\&#;1px\&#; use_border_color=\&#;off\&#; border_color=\&#;#ffffff\&#; border_style=\&#;solid\&#; custom_margin=\&#;0||0|\&#; custom_padding=\&#;0||0|\&#; saved_tabs=\&#;all\&#;]
image by https://creativecommons.org/licenses/by/2.0/legalcode
[/et_pb_text][et_pb_image admin_label=\&#;Roxar drifter\&#; src=\&#;https://webomindapps.link/roxar/wp-content/uploads//07/Roxar-Fast-Drilling1-e.png\&#; alt=\&#;Roxar Fast Drilling: Drill hole faster thanks to Roxar Efficient Productivity. Roxar drifter, top hammer rock drill.\&#; title_text=\&#;Roxar Fast Drilling: Drill hole faster thanks to Roxar Efficient Productivity. Roxar drifter, top hammer rock drill.\&#; show_in_lightbox=\&#;off\&#; url=\&#;https://webomindapps.link/roxar/roxar/drifters/\&#; url_new_window=\&#;off\&#; animation=\&#;left\&#; sticky=\&#;off\&#; align=\&#;center\&#; force_fullwidth=\&#;off\&#; always_center_on_mobile=\&#;on\&#; use_border_color=\&#;off\&#; border_color=\&#;#ffffff\&#; border_style=\&#;solid\&#;] [/et_pb_image][/et_pb_column][/et_pb_row][et_pb_row][et_pb_column type=\&#;4_4\&#;][et_pb_divider admin_label=\&#;Divider\&#; color=\&#;#ffffff\&#; show_divider=\&#;off\&#; divider_style=\&#;solid\&#; divider_position=\&#;top\&#; hide_on_mobile=\&#;on\&#; height=\&#;4\&#;] [/et_pb_divider][/et_pb_column][/et_pb_row][et_pb_row make_fullwidth=\&#;off\&#; use_custom_width=\&#;off\&#; width_unit=\&#;on\&#; use_custom_gutter=\&#;off\&#; padding_mobile=\&#;off\&#; background_color=\&#;#132c47\&#; allow_player_pause=\&#;off\&#; parallax=\&#;off\&#; parallax_method=\&#;off\&#; make_equal=\&#;off\&#;][et_pb_column type=\&#;4_4\&#;][et_pb_cta admin_label=\&#;Call To Action\&#; title=\&#;Contact us for more information\&#; button_url=\&#;https://webomindapps.link/roxar/roxar/roxar-contact-us/\&#; button_text=\&#;Contact Us\&#; use_background_color=\&#;off\&#; background_color=\&#;#2ea3f2\&#; background_layout=\&#;dark\&#; text_orientation=\&#;center\&#; url_new_window=\&#;off\&#; use_border_color=\&#;off\&#; border_color=\&#;#ffffff\&#; border_style=\&#;solid\&#; custom_button=\&#;off\&#; button_letter_spacing=\&#;0\&#; button_use_icon=\&#;default\&#; button_icon_placement=\&#;right\&#; button_on_hover=\&#;on\&#; button_letter_spacing_hover=\&#;0\&#; saved_tabs=\&#;all\&#; body_text_color=\&#;#ffffff\&#; header_text_color=\&#;#ffffff\&#;]
Contact us for more information about Roxar Products
[/et_pb_cta][/et_pb_column][/et_pb_row][/et_pb_section]
Contact us to discuss your requirements of Rock Drilling Tools Manufacturers. Our experienced sales team can help you identify the options that best suit your needs.