CA2546364C - Method and system for controlling power consumption during a rock drilling process and a rock drilling apparatus therefore - Google Patents
Method and system for controlling power consumption during a rock drilling process and a rock drilling apparatus therefore Download PDFInfo
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- CA2546364C CA2546364C CA2546364A CA2546364A CA2546364C CA 2546364 C CA2546364 C CA 2546364C CA 2546364 A CA2546364 A CA 2546364A CA 2546364 A CA2546364 A CA 2546364A CA 2546364 C CA2546364 C CA 2546364C
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- 238000005553 drilling Methods 0.000 title claims abstract description 71
- 239000011435 rock Substances 0.000 title claims abstract description 59
- 238000000034 method Methods 0.000 title claims abstract description 58
- 230000008569 process Effects 0.000 title claims abstract description 24
- 238000009527 percussion Methods 0.000 claims abstract description 17
- 238000011010 flushing procedure Methods 0.000 claims abstract description 10
- 230000006870 function Effects 0.000 claims description 13
- 238000001816 cooling Methods 0.000 description 6
- 239000000446 fuel Substances 0.000 description 6
- 238000005520 cutting process Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
Method for controlling power consumption during a rock drilling process with a rock drilling apparatus, wherein the rock drilling apparatus includes main power supply means for supplying power for the rock drilling process, which includes at least the sub-processes of percussion and/or rotation and flushing, the method comprising the steps of: - adjusting the flush power at least partly as a function of hole depth, and controlling at least the percussion power and/or rotational power and the flush power such that the total power consumption of each sub-process is controlled.
Description
METHOD AND SYSTEM FOR CONTROLLING POWER CONSUMPTION DURING A
ROCK DRILLING PROCESS AND A ROCK DRILLING APPARATUS THEREFORE
Field of the invention The invention relates to a method for controlling power.
consumption during a rock drilling process, The invention further relates to a system and a rock drilling apparatus.
Background of the invention Rock drilling apparatuses may be used in a number of fields.
For example, rock drilling apparatuses may be used in tunnelling, underground mining, rock reinforcement, raise boring, and for drilling of blast holes, grout holes and holes for installing rock bolts.
Rock drilling is often performed by percussion rock drilling, in which a drill tool mounted at one end of a drill rod is provided with impact pulses by a hammer piston, arranged on the opposite side of the drill rod, and arranged to be powered to repeatedly impact upon the drill rod. At the outermost end of the drill tool there are drill bits that penetrate the rock and break it upon the impacts by the hammer piston.
The drill tool also may be pressed against the rock to maintain contact between the tool and the rock in order to make sure that as much impact energy as possible from the = hammer piston is transmitted to the rock. To make the drilling process more efficient the drill tool may further be rotated somewhat between the impacts so that the drill bits hit a new
ROCK DRILLING PROCESS AND A ROCK DRILLING APPARATUS THEREFORE
Field of the invention The invention relates to a method for controlling power.
consumption during a rock drilling process, The invention further relates to a system and a rock drilling apparatus.
Background of the invention Rock drilling apparatuses may be used in a number of fields.
For example, rock drilling apparatuses may be used in tunnelling, underground mining, rock reinforcement, raise boring, and for drilling of blast holes, grout holes and holes for installing rock bolts.
Rock drilling is often performed by percussion rock drilling, in which a drill tool mounted at one end of a drill rod is provided with impact pulses by a hammer piston, arranged on the opposite side of the drill rod, and arranged to be powered to repeatedly impact upon the drill rod. At the outermost end of the drill tool there are drill bits that penetrate the rock and break it upon the impacts by the hammer piston.
The drill tool also may be pressed against the rock to maintain contact between the tool and the rock in order to make sure that as much impact energy as possible from the = hammer piston is transmitted to the rock. To make the drilling process more efficient the drill tool may further be rotated somewhat between the impacts so that the drill bits hit a new
2 location at every impact. The drill cuttings are flushed away from the hole with a suitable medium. This medium usually is air in surface drilling apparatuses, water in underground working apparatuses. Alternatively, watermist with or without a chemical additive may be used in both types of apparatuses.
The rock drilling apparatus further comprises main power supply means, such as a diesel engine that is used to produce power for power requiring functions of the rock drilling apparatus. These functions may include a compressor for producing flushing pressure/flow, percussion power, rotational power, feeding power, feeding rate, hydraulic pumps, cooling fans.
Rock drilling may further be carried out by apparatuses utilising only rotation and applied pressure to break the rock, or apparatuses only utilising rotation to break the rock.
The main power supply means is dimensioned such that all functions may be used using their maximum output power rate simultaneously at all times to ensure proper function.
A problem with existing rock drilling equipment, however, is that they often consume more power than necessary during a drilling process, which results in excessive fuel consumption, and heat and noise generation.
Accordingly, there is a need for an improved rock drilling method that solves the above mentioned problem.
The rock drilling apparatus further comprises main power supply means, such as a diesel engine that is used to produce power for power requiring functions of the rock drilling apparatus. These functions may include a compressor for producing flushing pressure/flow, percussion power, rotational power, feeding power, feeding rate, hydraulic pumps, cooling fans.
Rock drilling may further be carried out by apparatuses utilising only rotation and applied pressure to break the rock, or apparatuses only utilising rotation to break the rock.
The main power supply means is dimensioned such that all functions may be used using their maximum output power rate simultaneously at all times to ensure proper function.
A problem with existing rock drilling equipment, however, is that they often consume more power than necessary during a drilling process, which results in excessive fuel consumption, and heat and noise generation.
Accordingly, there is a need for an improved rock drilling method that solves the above mentioned problem.
3 Summary of the invention It is an object of the present invention to provide a method for controlling power consumption during a rock drilling process that solves the above mentioned problem.
Another object of the present invention is to provide a system for controlling power consumption during a rock drilling process, which solves the above mentioned problem.
It is a further object of the present invention to provide a rock drilling apparatus that solves the above mentioned problem.
The method for controlling power consumption during a rock drilling process with a rock drilling apparatus, includes adjusting the flush power at least partly as a function of hole depth, and controlling at least the percussion power aTiorharsolteillaniertahl tohnelyfisehrpelesducalolattotfhl power total power consumption of each sub-process is controlled such that the power output-from the main power supply means is kept at or below a predetermined level.
at a certain hole depth is used for flushing, and that the remaining power may be used for other functions and/or for saving power, resulting in, for example less fuel consumption, =
less noise and less heat.
Another object of the present invention is to provide a system for controlling power consumption during a rock drilling process, which solves the above mentioned problem.
It is a further object of the present invention to provide a rock drilling apparatus that solves the above mentioned problem.
The method for controlling power consumption during a rock drilling process with a rock drilling apparatus, includes adjusting the flush power at least partly as a function of hole depth, and controlling at least the percussion power aTiorharsolteillaniertahl tohnelyfisehrpelesducalolattotfhl power total power consumption of each sub-process is controlled such that the power output-from the main power supply means is kept at or below a predetermined level.
at a certain hole depth is used for flushing, and that the remaining power may be used for other functions and/or for saving power, resulting in, for example less fuel consumption, =
less noise and less heat.
4 The flush power may further be adjusted at least partly as a function of hole diameter and/or diameter of the drill rod.
The flow of the flush medium may be kept substantially constant throughout the drilling process, i.e. the flush power increases with increased hole depth. The hole depth may further be continuously measured. This has the advantage that the flow may be kept at precisely the flow level needed for managing to flush the drill hole, and thus the flush power may kept at lowest possible value throughout the drilling process, at all times.
The flow of the flush medium may be increased at least slightly with increasing hole depth. This has the advantage that as the hole depth increases, the flow may be increased somewhat in order to further compensate for the hole depth and/or drill rod joints and/or drill cuttings tending to get stuck on the wall of the drill hole.
The required flush power may be determined by computer means.
The computer means may be connected to a memory in which is stored a table comprising one or more of lists of types of drill tools and/or types of drill rods, and preferably calculation parameters to be used with a selected combination.
The flush power may be determined based on stored data concerning type of drill tool and/or type of drill rod and/or hole depth. This has the advantage that the flow of the flush medium may be kept at a desired value independent of for example which drill tool diameter and/or drill rod diameter that is used.
The invention may be used in conventional rock drilling apparatuses, for example in apparatuses utilising percussion or rotation or a combination thereof.
4a According to one aspect of the present invention, there is provided a method for controlling power consumption during a rock drilling process with a rock drilling apparatus, wherein the rock drilling apparatus includes main power supply means for supplying power for the rock drilling process, which includes at least the sub-processes of flushing and at least one of percussion and rotation, the method comprising the steps of, during actual drilling of a hole: adjusting the flush power as a function of hole depth, and controlling the flush power and at least one of the percussion power and rotational power such that the total power consumption of each sub-process is controlled.
According to another aspect of the present invention, there is provided a system for controlling power consumption during a rock drilling process with a rock drilling apparatus, wherein the rock drilling apparatus includes main power supply means for supplying power for the rock drilling process, which includes at least the sub-processes of flushing and at least one of percussion and rotation, the system comprising: means for adjusting the flush power as a function of hole depth during actual drilling of a hole, and means for controlling the flush power and at least one of the percussion power and rotational power during actual drilling of the hole, such that the total power consumption of each sub-process is controlled.
Brief description of the drawings Fig. 1 shows an exemplary embodiment of a rock drilling apparatus according to the present invention.
Fig. 2 shows a block diagram describing an exemplary
The flow of the flush medium may be kept substantially constant throughout the drilling process, i.e. the flush power increases with increased hole depth. The hole depth may further be continuously measured. This has the advantage that the flow may be kept at precisely the flow level needed for managing to flush the drill hole, and thus the flush power may kept at lowest possible value throughout the drilling process, at all times.
The flow of the flush medium may be increased at least slightly with increasing hole depth. This has the advantage that as the hole depth increases, the flow may be increased somewhat in order to further compensate for the hole depth and/or drill rod joints and/or drill cuttings tending to get stuck on the wall of the drill hole.
The required flush power may be determined by computer means.
The computer means may be connected to a memory in which is stored a table comprising one or more of lists of types of drill tools and/or types of drill rods, and preferably calculation parameters to be used with a selected combination.
The flush power may be determined based on stored data concerning type of drill tool and/or type of drill rod and/or hole depth. This has the advantage that the flow of the flush medium may be kept at a desired value independent of for example which drill tool diameter and/or drill rod diameter that is used.
The invention may be used in conventional rock drilling apparatuses, for example in apparatuses utilising percussion or rotation or a combination thereof.
4a According to one aspect of the present invention, there is provided a method for controlling power consumption during a rock drilling process with a rock drilling apparatus, wherein the rock drilling apparatus includes main power supply means for supplying power for the rock drilling process, which includes at least the sub-processes of flushing and at least one of percussion and rotation, the method comprising the steps of, during actual drilling of a hole: adjusting the flush power as a function of hole depth, and controlling the flush power and at least one of the percussion power and rotational power such that the total power consumption of each sub-process is controlled.
According to another aspect of the present invention, there is provided a system for controlling power consumption during a rock drilling process with a rock drilling apparatus, wherein the rock drilling apparatus includes main power supply means for supplying power for the rock drilling process, which includes at least the sub-processes of flushing and at least one of percussion and rotation, the system comprising: means for adjusting the flush power as a function of hole depth during actual drilling of a hole, and means for controlling the flush power and at least one of the percussion power and rotational power during actual drilling of the hole, such that the total power consumption of each sub-process is controlled.
Brief description of the drawings Fig. 1 shows an exemplary embodiment of a rock drilling apparatus according to the present invention.
Fig. 2 shows a block diagram describing an exemplary
5 embodiment of the present invention.
Detailed description of preferred embodiments Fig. 1 depicts an exemplary rock drilling apparatus according to the present invention. In the figure is shown a rock drilling apparatus 1, in this exemplary a surface drill rig.
The drill rig 1 is shown in use drilling a hole 2, starting from a ground level, at present having reached a depth a and destined to result in a hole of depth p, for example 30 meters, the finished hole being indicated by interrupted lines. (The shown relation of drill rig height/hole depth is not intended to be exact. The total height y of the drill might for example be 10 meters.) The drill rig 1 is provided with a top hammer 11 mounted via a rock drill cradle 13 on a feed 5. The feed 5 is attached to a boom 15 via a feed holder 12. The top hammer 11 provides percussive action to a drill tool 3 with one or more drill bits 4 via a drill rod 6 supported by a rod support 14. The top hammer 11 is power supplied from a hydraulic pump 10, driven by a diesel engine 9, via a conduit attached to the feed 5 (the hydraulic feed is not shown in the figure). The drill cuttings are flushed out of the hole 2 by compressed air that is fed through a tube, preferably in the center of the drill rod 6, and is discharged near the drill tool 3. The compressed air flushes the drill cuttings upwards through and out of the hole 2, as indicated by the upwardly directed arrows in fig 1. Instead of compressed air, other flushing media may be used as well, for example watermist with or
Detailed description of preferred embodiments Fig. 1 depicts an exemplary rock drilling apparatus according to the present invention. In the figure is shown a rock drilling apparatus 1, in this exemplary a surface drill rig.
The drill rig 1 is shown in use drilling a hole 2, starting from a ground level, at present having reached a depth a and destined to result in a hole of depth p, for example 30 meters, the finished hole being indicated by interrupted lines. (The shown relation of drill rig height/hole depth is not intended to be exact. The total height y of the drill might for example be 10 meters.) The drill rig 1 is provided with a top hammer 11 mounted via a rock drill cradle 13 on a feed 5. The feed 5 is attached to a boom 15 via a feed holder 12. The top hammer 11 provides percussive action to a drill tool 3 with one or more drill bits 4 via a drill rod 6 supported by a rod support 14. The top hammer 11 is power supplied from a hydraulic pump 10, driven by a diesel engine 9, via a conduit attached to the feed 5 (the hydraulic feed is not shown in the figure). The drill cuttings are flushed out of the hole 2 by compressed air that is fed through a tube, preferably in the center of the drill rod 6, and is discharged near the drill tool 3. The compressed air flushes the drill cuttings upwards through and out of the hole 2, as indicated by the upwardly directed arrows in fig 1. Instead of compressed air, other flushing media may be used as well, for example watermist with or
6 without a chemical additive. The compressed air is fed to the drill rod 6 from a compressor 8 via a tube 7. The compressor 8, in turn is powered by the diesel engine 9.
In current drill rigs the diesel engine 9 has to be large enough to be able to simultaneously drive both the compressor and the hydraulic pump at full rate as well as cooling fans and other appliances. The compressor is always driven at or near its maximum rate during drilling, and since the compressor may consume for example 120 hp of a diesels total output of for example 300 hp, the compressor consumes a large amount of fuel, which results in the generation of large amounts of exhaust gases and of noise and heat, which further results in even more noise and fuel consumption due to the fact that cooling fans need to be driven harder.
According to the present invention, however, these drawbacks may be reduced by driving the compressor at the power level that is currently required. For example, at the beginning of the drilling of a hole, the flush power that is required to produce a flow of the flush medium being sufficient to evacuate the drill cuttings is relatively small, and thus the compressor need not deliver more than this required power.
This means that the diesel engine in turn can be driven with reduced power output, thus resulting in decreased fuel consumption, less generated heat and less generated noise.
Alternatively, the power thus saved by driving the compressor with reduced input power may be used to allow more power to be allocated to the top hammer than otherwise is possible, which results in faster drilling in the first and/or most part of the hole.
The compressor power reduction may be accomplished in different ways depending on compressor type. In case of for
In current drill rigs the diesel engine 9 has to be large enough to be able to simultaneously drive both the compressor and the hydraulic pump at full rate as well as cooling fans and other appliances. The compressor is always driven at or near its maximum rate during drilling, and since the compressor may consume for example 120 hp of a diesels total output of for example 300 hp, the compressor consumes a large amount of fuel, which results in the generation of large amounts of exhaust gases and of noise and heat, which further results in even more noise and fuel consumption due to the fact that cooling fans need to be driven harder.
According to the present invention, however, these drawbacks may be reduced by driving the compressor at the power level that is currently required. For example, at the beginning of the drilling of a hole, the flush power that is required to produce a flow of the flush medium being sufficient to evacuate the drill cuttings is relatively small, and thus the compressor need not deliver more than this required power.
This means that the diesel engine in turn can be driven with reduced power output, thus resulting in decreased fuel consumption, less generated heat and less generated noise.
Alternatively, the power thus saved by driving the compressor with reduced input power may be used to allow more power to be allocated to the top hammer than otherwise is possible, which results in faster drilling in the first and/or most part of the hole.
The compressor power reduction may be accomplished in different ways depending on compressor type. In case of for
7 example a displacement compressor, the power may be reduced by either reducing the R.P.M. or uploading the compressor by shutting the inlet.
The control of the compressor power will now be described with reference to fig. 2, showing a block diagram of a control system. The figure shows a drill rig 21 with a diesel engine 22. The diesel engine is directly or indirectly connected to a compressor 23, a hydraulic pump 29, cooling fan(s) 24, other appliance(s) 25, a top hammer 26 and a controller 27, such as a computer. The controller is further connected to the compressor 23 and/or the hydraulic pump and/or the cooling fans(s) 24 and/or of the appliances 25.
In order to control the compressor power, a sensor 28, for example mounted on the feed, provides the controller 27 with information regarding the current hole depth, and the controller 27 then transmits, for example via a CAN bus, control signals to the compressor 23 including information about which power/pressure it should deliver in order to produce a desired flow of the flush medium. The controller may further send control signals to the diesel engine and/or cooling fans(s) and/or other appliances as needed, for example desired power values. The controller 27 may include a memory in or connected to it, in which is stored desired values for the compressor settings versus hole depths so that the 25 compressor may be correctly adjusted. Alternatively or in addition, there may further be stored calculation parameters to be used with the hole depth to calculate a desired compressor power. These calculation parameters may be dependent on type of drill tool and/or type of drill rod.
30 Preferably calculation parameters are stored for each possible combination of drill tool and/or drill rod. In an alternative embodiment there are listings stored in the memory, wherein
The control of the compressor power will now be described with reference to fig. 2, showing a block diagram of a control system. The figure shows a drill rig 21 with a diesel engine 22. The diesel engine is directly or indirectly connected to a compressor 23, a hydraulic pump 29, cooling fan(s) 24, other appliance(s) 25, a top hammer 26 and a controller 27, such as a computer. The controller is further connected to the compressor 23 and/or the hydraulic pump and/or the cooling fans(s) 24 and/or of the appliances 25.
In order to control the compressor power, a sensor 28, for example mounted on the feed, provides the controller 27 with information regarding the current hole depth, and the controller 27 then transmits, for example via a CAN bus, control signals to the compressor 23 including information about which power/pressure it should deliver in order to produce a desired flow of the flush medium. The controller may further send control signals to the diesel engine and/or cooling fans(s) and/or other appliances as needed, for example desired power values. The controller 27 may include a memory in or connected to it, in which is stored desired values for the compressor settings versus hole depths so that the 25 compressor may be correctly adjusted. Alternatively or in addition, there may further be stored calculation parameters to be used with the hole depth to calculate a desired compressor power. These calculation parameters may be dependent on type of drill tool and/or type of drill rod.
30 Preferably calculation parameters are stored for each possible combination of drill tool and/or drill rod. In an alternative embodiment there are listings stored in the memory, wherein
8 each listing includes compressor settings versus depth for each combination. For example, there may be values stored for each cm or dm or m increased hole depth. It is also possible to store values resulting in an increasing flow as the hole depth increases in order to compensate for the factors mentioned above.
In a further exemplary embodiment (not shown), a sensor sensing the actual flow may be connected to the controller, which enables the controller to continuously send control signals to the compressor based on the flow values. The flow may for example be calculated as litres per revolution of the compressor * revolutions per minute (R.P.M) * working time/total time.
The desired flow may in an alternative exemplary embodiment be set by the operator by setting a value on a control or by inputting a desired value to the controller via a man machine interface such as a display and/or a keyboard.
The present invention has for example the advantage that when drilling narrow holes, the compressor need not be working at full power at all during the drilling process, thus resulting in a fuel save and/or extra power for the top hammer throughout the drilling process.
In the above description, the invention has been described in connection with a surface drill rig with a hydraulic top hammer drill rig. The present invention may, however, equally well be used with any other type of drilling apparatus with separately powered flushing and drilling. For example, the invention may be used with rock drilling apparatuses utilising both percussion and rotation to perform the rock drilling. The invention may also be used in rock drilling where only rotation and applied pressure is utilised to break the rock,
In a further exemplary embodiment (not shown), a sensor sensing the actual flow may be connected to the controller, which enables the controller to continuously send control signals to the compressor based on the flow values. The flow may for example be calculated as litres per revolution of the compressor * revolutions per minute (R.P.M) * working time/total time.
The desired flow may in an alternative exemplary embodiment be set by the operator by setting a value on a control or by inputting a desired value to the controller via a man machine interface such as a display and/or a keyboard.
The present invention has for example the advantage that when drilling narrow holes, the compressor need not be working at full power at all during the drilling process, thus resulting in a fuel save and/or extra power for the top hammer throughout the drilling process.
In the above description, the invention has been described in connection with a surface drill rig with a hydraulic top hammer drill rig. The present invention may, however, equally well be used with any other type of drilling apparatus with separately powered flushing and drilling. For example, the invention may be used with rock drilling apparatuses utilising both percussion and rotation to perform the rock drilling. The invention may also be used in rock drilling where only rotation and applied pressure is utilised to break the rock,
9 or where only rotation is used, which for example might be the case in soft rock drilling, such as in coal mines. In the cases where rotation is used to break the rock, the power saved from reduced flushing may be utilised for faster rotation and thereby faster drilling.
It should further be understood that numerous other sensors, for example temperature sensors, may be connected to the controller in order to provide it with information useful in controlling the operation of the rock drilling apparatus.
It should further be understood that numerous other sensors, for example temperature sensors, may be connected to the controller in order to provide it with information useful in controlling the operation of the rock drilling apparatus.
Claims (21)
1. A method for controlling power consumption during a rock drilling process with a rock drilling apparatus, wherein the rock drilling apparatus includes main power supply means for supplying power for the rock drilling process, which includes at least the sub-processes of flushing and at least one of percussion and rotation, the method comprising the steps of, during actual drilling of a hole:
- adjusting the flush power as a function of hole depth, and - controlling the flush power and at least one of the percussion power and rotational power such that the total power consumption of each sub-process is controlled.
- adjusting the flush power as a function of hole depth, and - controlling the flush power and at least one of the percussion power and rotational power such that the total power consumption of each sub-process is controlled.
2. The method according to claim 1, wherein the flush power further is adjusted at least partly as a function of hole diameter and/or diameter of the drill rod.
3. The method according to claim 1 or 2, wherein the total power consumption of each sub-process is controlled such that the power output from the main power supply means is kept at or below a predetermined level.
4. The method according to any one of claims 1-3, wherein the flow of the flush medium is kept substantially constant throughout the drilling process.
5. The method according to any one of claims 1-3, wherein the flow of the flush medium is increased with increasing hole depth.
6. The method according to any one of claims 1-5, wherein the hole depth is continuously measured.
7. The method according to any one of claims 1-6, wherein the flow of the flush medium is continuously measured.
8. The method according to any one of claims 1-7, wherein the required flush power is determined by computer means.
9. The method according to claim 8, wherein the computer means is connected to a memory in which is stored a table comprising one or more lists at least partly including type of drill tool and/or type of drill rod and/or hole depth and that the flush power is determined based on stored values.
10. The method according to any one of claims 1-9, wherein percussion is performed by a hydraulic top hammer.
11. A system for controlling power consumption during a rock drilling process with a rock drilling apparatus, wherein the rock drilling apparatus includes main power supply means for supplying power for the rock drilling process, which includes at least the sub-processes of flushing and at least one of percussion and rotation, the system comprising:
- means for adjusting the flush power as a function of hole depth during actual drilling of a hole, and - means for controlling the flush power and at least one of the percussion power and rotational power during actual drilling of the hole, such that the total power consumption of each sub-process is controlled.
- means for adjusting the flush power as a function of hole depth during actual drilling of a hole, and - means for controlling the flush power and at least one of the percussion power and rotational power during actual drilling of the hole, such that the total power consumption of each sub-process is controlled.
12. The system according to claim 11, wherein it further includes means for adjusting the flush power at least partly as a function of hole diameter and/or diameter of the drill rod.
13. The system according to claim 11 or 12, wherein the system is arranged to control the total power consumption of each sub-process such that the power output from the main power supply means is kept at or below a predetermined level.
14. The system according to any one of claims 11-13, wherein the system is arranged to keep the flow of the flush medium substantially constant throughout the drilling process.
15. The system according to any one of claims 11-13, wherein the system is arranged to increase the flow of the flush medium with increasing hole depth.
16. The system according to any one of claims 11-15, wherein the system is arranged to continuously measure the hole depth.
17. The system according to any one of claims 11-16, wherein the system is arranged to continuously measure the flow of the flush medium.
18. The system according to any one of claims 11-17, wherein the system is arranged to determine the required flush power by computer means.
19. The system according to claim 18, wherein the computer means is connected to a memory arranged to store a table comprising one or more of lists at least partly including type of drill tool and/or type of drill rod and/or hole depth, and that the flush power is arranged to be determined based on stored values.
20. The system according to any one of claims 11-19, wherein percussion is arranged to be performed by a hydraulic top hammer.
21. A rock drill apparatus, wherein is arranged to include a system according to any one of claims 11-20.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE0303548A SE526923C2 (en) | 2003-12-29 | 2003-12-29 | Method, system and device for controlling power consumption during a rock drilling process |
| SE0303548-2 | 2003-12-29 | ||
| PCT/SE2004/001758 WO2005064111A1 (en) | 2003-12-29 | 2004-11-29 | Method and system for controlling power consumption during a rock drilling process and a rock drilling apparatus therefore |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2546364A1 CA2546364A1 (en) | 2005-07-14 |
| CA2546364C true CA2546364C (en) | 2013-09-17 |
Family
ID=30768861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2546364A Expired - Fee Related CA2546364C (en) | 2003-12-29 | 2004-11-29 | Method and system for controlling power consumption during a rock drilling process and a rock drilling apparatus therefore |
Country Status (15)
| Country | Link |
|---|---|
| US (1) | US20070089907A1 (en) |
| EP (1) | EP1699999B2 (en) |
| JP (1) | JP4759520B2 (en) |
| CN (1) | CN1890452B (en) |
| AT (1) | ATE428044T1 (en) |
| AU (1) | AU2004309309B2 (en) |
| BR (1) | BRPI0417711B1 (en) |
| CA (1) | CA2546364C (en) |
| DE (1) | DE602004020511D1 (en) |
| ES (1) | ES2322367T3 (en) |
| NO (1) | NO336946B1 (en) |
| RU (1) | RU2367767C2 (en) |
| SE (1) | SE526923C2 (en) |
| WO (1) | WO2005064111A1 (en) |
| ZA (1) | ZA200604179B (en) |
Families Citing this family (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7395788B2 (en) * | 2005-03-22 | 2008-07-08 | Atlas Copco Rock Drills Ab | Drill rig and a method for controlling a fan therein |
| SE530829C2 (en) * | 2005-06-17 | 2008-09-23 | Atlas Copco Rock Drills Ab | Method, system and rock drilling device for controlling power consumption during a rock drilling process |
| FI123636B (en) | 2006-04-21 | 2013-08-30 | Sandvik Mining & Constr Oy | A method for controlling the operation of a rock drilling machine and a rock drilling machine |
| FI118778B (en) * | 2006-06-01 | 2008-03-14 | Sandvik Mining & Constr Oy | A method for controlling the operation of a rock drilling machine and a rock drilling machine |
| US20080203734A1 (en) * | 2007-02-22 | 2008-08-28 | Mark Francis Grimes | Wellbore rig generator engine power control |
| SE531521C2 (en) * | 2007-09-07 | 2009-05-05 | Svenska Maskin Och Tryckluft I | Device for drilling in soil layers and rock |
| US20090312885A1 (en) * | 2008-06-11 | 2009-12-17 | Buiel Edward R | Management system for drilling rig power supply and storage system |
| JP5396467B2 (en) * | 2009-04-29 | 2014-01-22 | アトラス コプコ ロツク ドリルス アクチボラグ | Air flow monitoring structure and air flow monitoring method in rock drilling apparatus |
| US8646549B2 (en) * | 2009-10-08 | 2014-02-11 | Atlas Copco Drilling Solutions Llc | Drilling machine power pack which includes a clutch |
| US8443916B2 (en) * | 2009-12-17 | 2013-05-21 | Caterpillar Global Mining Equipment Llc | Hose tensioner for a rock drill system |
| EP2369127A1 (en) * | 2010-03-09 | 2011-09-28 | Sandvik Intellectual Property AB | A rock drill bit, a drilling assembly and a method for percussive rock drilling |
| EA023484B1 (en) | 2010-04-20 | 2016-06-30 | Сандвик Интеллекчуал Проперти Аб | Compressor system |
| DE102011010675A1 (en) * | 2010-05-21 | 2011-11-24 | Max Wild Gmbh | Drilling rig, in particular horizontal drilling rig |
| SE535421C2 (en) * | 2010-08-26 | 2012-07-31 | Atlas Copco Rock Drills Ab | Method and system for determining a change in a flushing medium flow and rock drilling device |
| SE535418C2 (en) * | 2010-08-26 | 2012-07-31 | Atlas Copco Rock Drills Ab | Method and system for controlling a compressor at a rock drilling device and rock drilling device |
| SE535475C2 (en) * | 2010-08-26 | 2012-08-21 | Atlas Copco Rock Drills Ab | Method and system for controlling a power source at a rock drilling device and rock drilling device |
| EP2572793B1 (en) | 2011-09-23 | 2017-04-26 | Sandvik Intellectual Property AB | A wear tip holder for a VSI crusher, a kit comprising a wear tip holder, and a method of reducing the wear rate of a wear tip holder |
| CA2926030A1 (en) * | 2013-08-23 | 2015-02-26 | Master Drilling South Africa (Pty) Ltd. | Integrated inspection and maintenance raise boring method and an associated drill string arrangement |
| CN103510847B (en) * | 2013-09-10 | 2016-03-30 | 安徽三山机械制造有限公司 | A kind of rotary drill of controlled Compressed Gas injection rate |
| AU2016308852B2 (en) * | 2015-08-18 | 2022-06-16 | Joy Global Surface Mining Inc | Combustor for heating of airflow on a drill rig |
| CN106640390B (en) * | 2016-11-04 | 2022-10-18 | 中国石油大学(华东) | Energy-saving control system and method for diesel engine for well drilling |
| US10920540B2 (en) * | 2016-12-02 | 2021-02-16 | Halliburton Energy Services, Inc. | Reducing noise produced by well operations |
| KR101932753B1 (en) | 2017-05-17 | 2019-03-20 | 주식회사수산중공업 | Method and Apparatus for Energy Saving of Hydraulic Drill |
| US20230135777A1 (en) | 2019-10-07 | 2023-05-04 | Minimeis As | Carrying device with a weight distribution support |
| EP4041035B1 (en) | 2019-10-07 | 2023-09-06 | Minimeis AS | A child carrying device with a weight distribution system and method of attaching |
| RU2770472C1 (en) * | 2021-05-27 | 2022-04-18 | федеральное государственное бюджетное образовательное учреждение высшего образования «Санкт-Петербургский горный университет» | System for the destruction of rock formation |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3550697A (en) * | 1966-04-27 | 1970-12-29 | Henry Hobhouse | Drilling condition responsive drive control |
| US3550696A (en) * | 1969-07-25 | 1970-12-29 | Exxon Production Research Co | Control of a well |
| US4793421A (en) * | 1986-04-08 | 1988-12-27 | Becor Western Inc. | Programmed automatic drill control |
| FI86008C (en) * | 1989-04-06 | 1992-06-25 | Tampella Oy Ab | Method and apparatus for controlling a rock drilling machine |
| FI90276C (en) * | 1991-01-03 | 1994-01-10 | Tamrock Oy | Procedure for drilling a hole in rock |
| FI87830C (en) * | 1991-05-23 | 1993-02-25 | Tamrock Oy | OVER ANCHORING FOER STARRY AV EN BERGBORRMASKINS LUFTMATNING |
| SE508003C2 (en) * | 1992-04-09 | 1998-08-10 | Atlas Copco Rock Drills Ab | Rock drilling device with storage device |
| JPH06146254A (en) * | 1992-11-16 | 1994-05-27 | Kawasaki Chishitsu Kk | Dry boring process of ground and rock-bed and device therefor |
| US5358058A (en) * | 1993-09-27 | 1994-10-25 | Reedrill, Inc. | Drill automation control system |
| US5704436A (en) * | 1996-03-25 | 1998-01-06 | Dresser Industries, Inc. | Method of regulating drilling conditions applied to a well bit |
| US6637522B2 (en) * | 1998-11-24 | 2003-10-28 | J. H. Fletcher & Co., Inc. | Enhanced computer control of in-situ drilling system |
| JP2000337074A (en) * | 1999-05-27 | 2000-12-05 | Furukawa Co Ltd | Automatic boring device |
| SE516730C2 (en) * | 2000-10-27 | 2002-02-19 | Sandvik Ab | Guide tubes for mechanical handling in a rig for rock drilling and drill string for mechanical handling |
| FI115553B (en) * | 2001-05-15 | 2005-05-31 | Sandvik Tamrock Oy | Arrangement for drilling control |
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2003
- 2003-12-29 SE SE0303548A patent/SE526923C2/en not_active IP Right Cessation
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2004
- 2004-11-29 ZA ZA200604179A patent/ZA200604179B/en unknown
- 2004-11-29 EP EP04820890.4A patent/EP1699999B2/en active Active
- 2004-11-29 CA CA2546364A patent/CA2546364C/en not_active Expired - Fee Related
- 2004-11-29 US US10/578,081 patent/US20070089907A1/en not_active Abandoned
- 2004-11-29 DE DE602004020511T patent/DE602004020511D1/en active Active
- 2004-11-29 CN CN2004800363442A patent/CN1890452B/en not_active Expired - Fee Related
- 2004-11-29 AT AT04820890T patent/ATE428044T1/en active
- 2004-11-29 RU RU2006123038/03A patent/RU2367767C2/en not_active IP Right Cessation
- 2004-11-29 BR BRPI0417711-8A patent/BRPI0417711B1/en not_active IP Right Cessation
- 2004-11-29 WO PCT/SE2004/001758 patent/WO2005064111A1/en not_active Application Discontinuation
- 2004-11-29 AU AU2004309309A patent/AU2004309309B2/en not_active Ceased
- 2004-11-29 ES ES04820890T patent/ES2322367T3/en active Active
- 2004-11-29 JP JP2006546890A patent/JP4759520B2/en not_active Expired - Fee Related
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2006
- 2006-07-21 NO NO20063385A patent/NO336946B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| WO2005064111A1 (en) | 2005-07-14 |
| DE602004020511D1 (en) | 2009-05-20 |
| CN1890452B (en) | 2010-08-25 |
| BRPI0417711A (en) | 2007-03-20 |
| RU2006123038A (en) | 2008-01-10 |
| SE526923C2 (en) | 2005-11-22 |
| AU2004309309B2 (en) | 2010-04-08 |
| NO336946B1 (en) | 2015-11-30 |
| BRPI0417711B1 (en) | 2015-08-04 |
| AU2004309309A1 (en) | 2005-07-14 |
| ATE428044T1 (en) | 2009-04-15 |
| ZA200604179B (en) | 2008-03-26 |
| ES2322367T3 (en) | 2009-06-19 |
| RU2367767C2 (en) | 2009-09-20 |
| CN1890452A (en) | 2007-01-03 |
| US20070089907A1 (en) | 2007-04-26 |
| SE0303548D0 (en) | 2003-12-29 |
| JP4759520B2 (en) | 2011-08-31 |
| CA2546364A1 (en) | 2005-07-14 |
| JP2007517150A (en) | 2007-06-28 |
| EP1699999B1 (en) | 2009-04-08 |
| EP1699999A1 (en) | 2006-09-13 |
| EP1699999B2 (en) | 2017-04-05 |
| NO20063385L (en) | 2006-09-21 |
| SE0303548L (en) | 2005-06-30 |
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| MKLA | Lapsed |
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