CN104695854A - Rotary drilling rig capable of realizing positive and negative circulation pneumatic down-hole hammer construction method - Google Patents

Rotary drilling rig capable of realizing positive and negative circulation pneumatic down-hole hammer construction method Download PDF

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Publication number
CN104695854A
CN104695854A CN201510088554.6A CN201510088554A CN104695854A CN 104695854 A CN104695854 A CN 104695854A CN 201510088554 A CN201510088554 A CN 201510088554A CN 104695854 A CN104695854 A CN 104695854A
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CN
China
Prior art keywords
hole hammer
square
hole
circulation
drilling rod
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Application number
CN201510088554.6A
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Chinese (zh)
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CN104695854B (en
Inventor
张继光
范强生
罗菊
孙余
刘国莉
王海静
金洲
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Xuzhou XCMG Foundation Construction Machinery Co Ltd
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Xuzhou XCMG Foundation Construction Machinery Co Ltd
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Priority to CN201510088554.6A priority Critical patent/CN104695854B/en
Publication of CN104695854A publication Critical patent/CN104695854A/en
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Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00Special methods or apparatus for drilling
    • E21B7/02Drilling rigs characterized by means for land transport with their own drive, e.g. skid mounting or wheel mounting
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02Couplings; joints
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/18Pipes provided with plural fluid passages
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B21/00Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B21/00Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/16Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor using gaseous fluids
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B4/00Drives for drilling, used in the borehole
    • E21B4/06Down-hole impacting means, e.g. hammers
    • E21B4/14Fluid operated hammers
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B4/00Drives for drilling, used in the borehole
    • E21B4/20Drives for drilling, used in the borehole combined with surface drive

Abstract

The invention discloses a rotary drilling rig capable of realizing a positive and negative circulation pneumatic down-hole hammer construction method. The rotary drilling rig comprises a rotary drilling rig body (13), a gooseneck boom (7), a steel wire rope (6), a power head (11), a drill pipe (10), a water tap (8), a follow-up frame (9), a positive and negative circulation converting device (12) and a positive circulation down-hole hammer (14), wherein down-hole hammer gas supply, gas lift negative circulation gas supply, and slagging pipelines are arranged inside the water tap, the drill rod and the positive and negative circulation converting device; the water tap is fixedly mounted on the follow-up frame; the lower end of the water tap is connected with the drill pipe; the drill pipe penetrates through the power head to transfer rotary drilling power; the positive and negative circulation converting device is mounted between the drill pipe and the positive circulation down-hole hammer. The rotary drilling rig realizes positive and negative circulation construction by dismounting and mounting the positive and negative circulation converting device; the gas supply pipelines and the slagging pipelines all penetrate through the interior of the water tap, the drill pipe and the positive and negative circulation converting device, the power head is not required to be changed, and the switching between common rotary excavating and pneumatic down-hole hammer rotary excavating can be realized.

Description

A kind of rotary drilling rig realizing positive and negative circulation pneumatic down-hole hammer engineering method
Technical field
The present invention relates to a kind of rotary drilling rig, specifically a kind of rotary drilling rig realizing positive and negative circulation pneumatic down-hole hammer engineering method, belongs to rotary drilling rig technical field.
Background technology
At present, catalase in rotary drilling rig construction mainly belongs to be sheared into rock, according to the condition of rock shearing fragmentation, the confidential realization of churning driven enters rock smoothly, must possess high pulling torque and the large main factor of effective large plus-pressure of transmission, the high rigidity of drilling tool pick and abrasion resistance three.But, due to the restriction of latter two factor, make rotary drilling rig efficiency of construction under hard rock operating mode extremely low.And because the reaction force fluctuation of stratum to equipment is large, and peak value is high, therefore also larger to the structural member fatigability infringement of equipment.
Drilling Technology of Airdriven DTH Hammer is arisen at the historic moment in this context, and described Drilling Technology of Airdriven DTH Hammer is a kind of drilling technology that application is more at present both at home and abroad, is also the important breakthrough of air drilling technology in detritus method.The Matching Technology of pneumatic down-hole hammer and rotary drilling rig not only can be increased substantially drilling efficiency but also hole quality is better, construction cost is low, the rock stratum being comparatively applicable to more than medium hardness is crept into, particularly the creeping into of competent bed.But the place that existing Drilling Technology of Airdriven DTH Hammer still comes with some shortcomings:
(1) rotary drilling rig and down-hole hammer with the use of time, bore diameter is comparatively large, and general application direct circulation is more, for preventing collapse hole, must full casing sleeve pipe follow-up construction, so not only cost is higher, and institute's deslagging is not easy to collect, and environment pollution is larger.And if utilize reacting cycle to carry out deslagging, although can centralized collection slag, the construction of full casing can also be reduced by structure design, reduce construction cost.But because the down-hole hammer of major diameter direct circulation in the market largest diameter can reach 2 meters, reverse circulation down-the-hole hammer largest diameter just about 0.3 meter, how realizing reacting cycle construction when constructing large aperture with direct circulation down-hole hammer is that pile foundation industry is studied and also unsolved significant difficulty always;
(2) in traditional pneumatic down-hole hammer device, the upper and lower side of unit head received respectively by drilling rod and water tap, drives drilling rod by unit head, and on water tap, transfer port and mud hole are transformed in drilling rod by unit head.This structure also can realize rotary drilling rig and pneumatic down-hole hammer with the use of, but unit head is changed comparatively large, and can not realize common revolving easily and to dig and pneumatic down-hole hammer revolves the switching between digging, construction cost is larger.
Summary of the invention
For above-mentioned prior art Problems existing, the invention provides a kind of rotary drilling rig realizing positive and negative circulation pneumatic down-hole hammer engineering method, utilize direct circulation down-hole hammer, by removing, installing reverse circulation conversion equipment, reach the object of positive and negative circulation construction; Adopt a kind of special water tap and special drilling rod, supply air line, deslagging pipeline etc. all pass through from water tap, drilling rod and reverse circulation conversion equipment inside, make unit head without the need to changing, can realize common revolve dig and pneumatic down-hole hammer revolve dig between convenient to switch.
To achieve these goals, a kind of rotary drilling rig realizing positive and negative circulation pneumatic down-hole hammer engineering method that the present invention adopts, comprise rotary drilling rig fuselage, be arranged on rig in rotary drilling rig fuselage bore masthead end gooseneck boom, walk around gooseneck boom wire rope, be arranged on the drilling rod that rig bores the unit head on mast and be arranged in unit head, also comprise water tap, arbitrary-movement articulator, reverse circulation conversion equipment and direct circulation down-hole hammer, described water tap, drilling rod and reverse circulation conversion equipment inside are all provided with down-hole hammer air feed, gas lift reverse circulation air feed and deslagging three pipelines; Described water tap is fixedly mounted on arbitrary-movement articulator, and the lower end of water tap is connected with the upper end of drilling rod, and the lower end of described drilling rod, through unit head, is transmitted to revolve and dug power; The rig that described arbitrary-movement articulator is arranged on rotary drilling rig fuselage bores on mast, and can move up and down along rig brill mast under the effect of wire rope; When needs reacting cycle is constructed, the upper end of reverse circulation conversion equipment can be connected with the lower end of drilling rod, and the lower end of reverse circulation conversion equipment is connected with direct circulation down-hole hammer, carry out reacting cycle construction; When needing direct circulation to construct, dismountable reverse circulation conversion equipment, directly receives the lower end of drilling rod by direct circulation down-hole hammer, carry out direct circulation construction.
Also comprise the collection slag car and air compressor machine, the described collection slag car is connected with the slag notch of water tap by scum pipe, and air compressor machine is corresponding connected by the air inlet port of air inlet pipe, gaslift air inlet pipe and water tap, gaslift air inlet port.
The link of described water tap, drilling rod and reverse circulation conversion equipment be all provided with coupling mutually inside and outside six square joints, a pair by being arranged on respective end between water tap with drilling rod, between drilling rod with drilling rod, between drilling rod with reverse circulation conversion equipment inside and outside six square joint, to be connected; Each to inside and outside six square joints, between by the 3rd bearing pin assembly connect.
Described inside and outside six square joints, between be provided with sealing ring for ensureing respective line seal.
Described water tap comprises three-channel housing assembly, revolving body, the bearing making three-channel housing assembly and revolving body relative motion, the outer six square shaft assemblies of output be connected with revolving body and inner ring is fixed on arbitrary-movement articulator, outer six square shaft assemblies are fixed in outer ring pivoting support, and described three-channel housing assembly comprises housing I, housing II and housing III; Housing I is provided with scum hole and flange, and construction medium stone and foreign material are discharged by scum hole, and flange is connected with transition body; Transition body lower end and housing II are fixed, and housing II is provided with gas lift reverse circulation supply hole, and gas lift reverse circulation supply hole can provide source of the gas in construction, realizes gas-lift slag discharging; Housing II lower end and housing III are fixed, and housing III is provided with down-hole hammer air inlet, and in construction, down-hole hammer air inlet can be used for providing source of the gas to supply down-hole hammer work.
Described three-channel housing assembly is fixed on arbitrary-movement articulator, and arbitrary-movement articulator is provided with bearing and installs seam; Outer ring and the arbitrary-movement articulator bearing of described bearing are installed seam and are coordinated, and inner ring coordinates with revolving body to be installed, and three-channel housing assembly and arbitrary-movement articulator are not rotated; Be provided with the rotatory sealing preventing source of the gas from leaking for sealing each passage between revolving body and three-channel housing assembly, making between revolving body and three-channel housing assembly can relative motion mutually; Revolving body is connected with outer six square shaft assemblies, and outer six square shaft assemblies are designed with installing hole, and outer six square shaft assemblies can be made to be connected with pivoting support outer ring, and pivoting support inner ring is fixed on arbitrary-movement articulator; Outer six square shaft assemblies be provided with six square joints in drill rod end with the use of outer six square joints.
Described arbitrary-movement articulator is provided with hoisting frame, and the upper end of described hoisting frame is connected with wire rope.
Described reverse circulation conversion equipment comprises short drill pipe, supply air line and dreg removing system; The upper end of described short drill pipe is provided with interior six square joints, and lower end is provided with outer six square joints; The gaslift supply pipe be communicated with interior six square joints I for gas-lift slag discharging is provided with in described short drill pipe; Described supply air line comprises air inlet pipe I, adapter cavity and curved air inlet pipe II, and air inlet pipe I upper end is communicated with interior six square joints by adapter cavity, and air inlet pipe I lower end connects curved air inlet pipe II by adapter cavity, and curved air inlet pipe II is communicated with outer six square joints; Described dreg removing system comprises mud hole and scum pipe a, and described scum pipe a is arranged in short drill pipe, and is communicated with interior six square joints, and short drill pipe bottom offers some mud holes be communicated with scum pipe a.
Described short drill pipe lower, outer perimeter is provided with casing, and casing is arranged with the guard shield for collecting slag.
Described drilling rod comprises the outer bar of hollow, the two ends of described outer bar are connected with interior six square joints of centre bore and outer six square joints respectively, be equipped with steel-tube seat in the centre bore of described inside and outside six square joints, on inside and outside six square joints, the periphery of centre bore has oval hole slot; Inside described outer bar, two ends are provided with the cylindrical transition chamber concentric with outer bar, and described outer bar inner sleeve has the first steel pipe placed with one heart and traverse two sections of adapter cavities, and the two ends of the first steel pipe are docked with the centre bore of inside and outside six square joints respectively; The second steel pipe of connection two sections of adapter cavities is furnished with in ring-shaped cylinder cavity between described outer bar and the first steel pipe; Be furnished with the 3rd steel pipe crossing the first steel pipe in described first steel pipe, the steel-tube seat in interior six square joint centre bores is inserted in one end of described 3rd steel pipe, and the other end passes the steel-tube seat in outer six square joint centre bores; Described two sections of adapter cavities are communicated with the oval hole slot on inside and outside six square joints respectively; The oval hole slot of described inside and outside six square joints, adapter cavity and the second steel pipe form down-hole hammer supply air line; The steel-tube seat of described 3rd steel pipe and inside and outside six square joints forms gas lift reverse circulation pipeline; The centre bore of described inside and outside six square joints and the cavity between the first steel pipe and the 3rd steel pipe form deslagging pipeline.
Compared with prior art, the present invention utilizes direct circulation down-hole hammer, by installing, removing reverse circulation transformational structure, reach the object of positive and negative circulation construction, and adopt interior apertured to hammer the water tap of air feed, gas lift reverse circulation air feed and deslagging three pipelines, drilling rod and reverse circulation conversion equipment into shape, make unit head without the need to changing, can realize common revolve dig and pneumatic down-hole hammer revolve dig between convenient to switch.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the connection diagram between water tap and miscellaneous part;
Fig. 3 is the structural representation of water tap of the present invention;
Fig. 4 is the sectional view of water tap of the present invention;
Fig. 5 is water tap part-structure schematic diagram of the present invention;
Fig. 6 is connection structure chart between adjacent two drilling rods;
Fig. 7 is connection structure chart between drilling rod and reverse circulation conversion equipment;
Fig. 8 is the structural representation of reverse circulation conversion equipment of the present invention;
Fig. 9 be in Fig. 8 A-A to sectional view;
Figure 10 is the structural representation of drilling rod of the present invention;
Figure 11 be in Figure 10 A-A to sectional view;
Figure 12 be in Figure 10 B-B to sectional view;
Figure 13 is connection structure chart between reverse circulation conversion equipment and down-hole hammer.
In figure: 1, the collection slag car, 2, air compressor machine, 3, scum pipe, 4, air inlet pipe, 5, gaslift air inlet pipe, 6, wire rope, 7, gooseneck boom, 8, water tap, 801, air cavity, 802, sealing, 803, bearing, 804, pivoting support, 805, bolt IV, 806, bolt III, 807, air flue, 808, outer six square shaft assemblies, 809, bolt II, 810, revolving body, 811, bolt I, 812, three-channel housing assembly, 813, housing I, 814, transition body, 815, housing II, 816, housing III, 9, arbitrary-movement articulator, 10, drilling rod, 101, outer bar, 102, adapter cavity, 103, 3rd steel pipe, 104, second steel pipe, 105, first steel pipe, 11, unit head, 12, reverse circulation conversion equipment, 121, short drill pipe, 122, adapter cavity, 123, gaslift supply pipe, 124, air inlet pipe I, 125, casing, 126, guard shield, 127, scum pipe a, 128, curved air inlet pipe II, 129, mud hole, 13, rotary drilling rig fuselage, 14, direct circulation down-hole hammer, 15, first bearing pin assembly, 16, hoisting frame, 17, slag notch, 18, gaslift air inlet port, 19, air inlet port, 20, second bearing pin assembly, 21, outer six square joints, 22, 3rd bearing pin assembly, 23, interior six square joints, 24, sealing ring, 25, six square joints in down-hole hammer, 26, centre bore, 27, steel-tube seat, 28, oval hole slot.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 1, a kind of rotary drilling rig realizing positive and negative circulation pneumatic down-hole hammer engineering method, comprise rotary drilling rig fuselage 13, be arranged on rig in rotary drilling rig fuselage 13 bore masthead end gooseneck boom 7, walk around gooseneck boom 7 wire rope 6, be arranged on the drilling rod 10 that rig bores the unit head 11 on mast and be arranged in unit head 11, also comprise water tap 8, arbitrary-movement articulator 9, reverse circulation conversion equipment 12 and direct circulation down-hole hammer 14, described water tap 8, drilling rod 10 and reverse circulation conversion equipment 12 inside are all provided with down-hole hammer air feed, gas lift reverse circulation air feed and deslagging three pipelines; Described water tap 8 is fixedly mounted on arbitrary-movement articulator 9, and the lower end of water tap 8 is connected with the upper end of drilling rod 10, and the lower end of described drilling rod 10, through unit head 11, is transmitted to revolve and dug power; The rig that described arbitrary-movement articulator 9 is arranged on rotary drilling rig fuselage 13 bores on mast, and can move up and down along rig brill mast under the effect of wire rope 6; When needs reacting cycle is constructed, the lower end of the upper end of reverse circulation conversion equipment 12 with drilling rod 10 can be connected, and the lower end of reverse circulation conversion equipment 12 is connected with direct circulation down-hole hammer 14, carry out reacting cycle construction; When needing direct circulation to construct, dismountable reverse circulation conversion equipment 12, directly receives the lower end of drilling rod 10 by direct circulation down-hole hammer 14, carry out direct circulation construction.
Preferably, as shown in Figure 1, also can comprise the collection slag car 1 and air compressor machine 2, the described collection slag car 1 is connected with the slag notch 17 of water tap 8 by scum pipe 3, and air compressor machine 2 is corresponding connected by the air inlet port 19 of air inlet pipe 4, gaslift air inlet pipe 5 and water tap 8, gaslift air inlet port 18.The collection slag car 1 can be utilized for loading the slag ejected, and utilize air compressor machine 2 to provide source of the gas, operation of being more convenient for.
Consider connection compactness and the power transmission problem of all parts, the link of described water tap 8, drilling rod 10 and reverse circulation conversion equipment 12 is all provided with inside and outside six square joints 23,21 of coupling mutually, and a pair by being arranged on respective end between water tap 8 with drilling rod 10, between drilling rod 10 with drilling rod 10, between drilling rod 10 with reverse circulation conversion equipment 12 inside and outside six square joints 23,21 are connected; Respectively to be connected by the 3rd bearing pin assembly 22 between inside and outside six square joints 23,21.Wherein, the sealing ring 24 for ensureing respective line seal is provided with between described inside and outside six square joints 23,21.After being connected by the 3rd bearing pin assembly 22, inside and outside six square joints 23,21 can transmitting torque, and bearing pin can bear pulling force when promoting drilling rod.Meanwhile, when connecting tap 8, drilling rod 10 and reverse circulation conversion equipment 12, need guarantee that three pipelines in these parts dock intact separately, the setting of sealing ring 24, can ensure the sealing of respective pipeline, and concrete connection as shown in Figure 6 and Figure 7.
As shown in Figure 2, described arbitrary-movement articulator 9 can be provided with hoisting frame 16, the upper end of described hoisting frame 16 is connected with wire rope 6.Setting up of hoisting frame 16, can make water tap 8, arbitrary-movement articulator 9 and hoisting frame 16 together move, and namely under the effect of wire rope 6 folding and unfolding, water tap 8, hoisting frame 16 bore mast together with arbitrary-movement articulator 9 along rig and move up and down.
As shown in Figures 3 to 5, described water tap 8 comprises three-channel housing assembly 812, revolving body 810, the bearing 803 making three-channel housing assembly 812 and revolving body 810 relative motion, the outer six square shaft assemblies 808 of output be connected with revolving body 810 and inner ring is fixed on arbitrary-movement articulator 9, outer six square shaft assemblies 808 are fixed in outer ring pivoting support 804, and described three-channel housing assembly 812 comprises housing I 813, housing II 815 and housing III 817; Housing I 813 is provided with scum hole and flange, and construction medium stone and foreign material are discharged by scum hole, and flange is connected with transition body 814 with packing ring by bolt; Transition body 814 lower end is fixed by bolt and packing ring and housing II 815, and housing II 815 is provided with gas lift reverse circulation supply hole, and gas lift reverse circulation supply hole can provide source of the gas in construction, realizes gas-lift slag discharging; Housing II 815 lower end is also fixed by bolt and packing ring and housing III 816, and housing III 816 is provided with down-hole hammer air inlet, and in construction, down-hole hammer air inlet can be used for providing source of the gas to supply down-hole hammer work.Described scum hole, gas lift reverse circulation supply hole and down-hole hammer air inlet position are all provided with pipeline, and respectively as slag notch 17, gaslift air inlet port 18, the air inlet port 19 of water tap.
Described three-channel housing assembly 812 is fixed on arbitrary-movement articulator 9 by bolt I811 and packing ring I, and arbitrary-movement articulator 9 is provided with bearing and installs seam; The outer ring of described bearing 803 is installed seam with arbitrary-movement articulator 9 bearing and is coordinated, and inner ring coordinates with revolving body 810 to be installed, and three-channel housing assembly 812 and arbitrary-movement articulator 9 are not rotated; Be provided with rotatory sealing between revolving body 810 and three-channel housing assembly 812, the source of the gas that not only can seal each passage leaks, and can also make between revolving body 810 and three-channel housing assembly 812 can relative motion mutually; Revolving body 810 is connected with outer six square shaft assemblies 808 with packing ring II by bolt II809, outer six square shaft assemblies 808 are designed with installing hole, outer six square shaft assemblies 808 can be made to be connected with pivoting support 804 outer ring, and fix with bolt III806 and packing ring II, pivoting support 804 inner ring is fixed on arbitrary-movement articulator 9 by bolt IV805 and packing ring IV; Outer six square shaft assemblies 808 be provided with six square joints in drilling rod 10 end with the use of outer six square joints, by pinned connection between inside and outside six square joints, and seal whole source of the gas by sealing ring.
Preferably, as shown in Figure 8 and Figure 9, described reverse circulation conversion equipment 12 comprises short drill pipe 121, supply air line and dreg removing system; The upper end of described short drill pipe 121 is provided with interior six square joints, and lower end is provided with outer six square joints; The gaslift supply pipe 123 be communicated with interior six square joints I 4 for gas-lift slag discharging is provided with in described short drill pipe 121; Described supply air line comprises air inlet pipe I 124, adapter cavity 122 and curved air inlet pipe II 128, air inlet pipe I 124 upper end is communicated with interior six square joints by adapter cavity 122, air inlet pipe I 124 lower end connects curved air inlet pipe II 128 by adapter cavity 122, and curved air inlet pipe II 128 is communicated with outer six square joints; Described dreg removing system comprises mud hole 129 and scum pipe a127, and described scum pipe a127 is arranged in short drill pipe 121, and is communicated with interior six square joints, and short drill pipe 121 bottom offers some mud holes 129 be communicated with scum pipe a127.
Wherein, the quantity of mud hole 129 can carry out calculating and setting according to the rubble amount of down-hole hammer cutting per minute; Mud hole 129 should be greater than the rubble amount of down-hole hammer cutting, so that deslagging is smooth and easy in unit interval systemic rubble amount.The present embodiment mud hole 129 is preferably provided with four, staggered.Also can be provided with casing 125 in short drill pipe 121 lower, outer perimeter, casing 125 is arranged with the guard shield 126 for collecting slag, and the diameter 20mm slightly less of aperture that down-hole hammer cuts of described casing 125, with the whole drilling rod that leads; Guard shield 126 is beveled structure, the rubble that can prevent down-hole hammer from cutting is discharged between casing and hole wall, the mandatory rubble that allows enters dreg removing system from mud hole, umbellate form part and disintegrating slag contact surface are constant slope, more be conducive to the guiding of disintegrating slag, disintegrating slag is entered in short drill pipe more smoothly, carries out deslagging.Meanwhile, the air inflow of air inlet is sufficiently large to Major diameter downhole hammer supply power gas source, and when pore passes through inside and outside six square joint, its structure is restricted, and for making throughput enough large, as shown in Figure 9, air inlet pipe I 124 is slotted hole.
Preferably, as shown in Figure 10 to Figure 12, described drilling rod 10 can comprise the outer bar 101 of hollow, the two ends of described outer bar 101 are connected with interior six square joints of centre bore 26 and outer six square joints respectively, be equipped with steel-tube seat 27 in the centre bore of described inside and outside six square joints, on inside and outside six square joints, the periphery of centre bore has oval hole slot 28; Inside described outer bar 101, two ends are provided with the cylindrical transition chamber 102 concentric with outer bar 101, described outer bar 101 inner sleeve has the two ends of placing with one heart and traversing the first steel pipe 105, first steel pipe 105 of two sections of adapter cavities 102 to dock with the centre bore of inside and outside six square joints respectively; The second steel pipe 104 of connection two sections of adapter cavities 102 is furnished with in ring-shaped cylinder cavity between described outer bar 101 and the first steel pipe 105; Be furnished with the 3rd steel pipe 103 crossing the first steel pipe 105 in described first steel pipe 105, the steel-tube seat in interior six square joint centre bores is inserted in one end of described 3rd steel pipe 103, and the other end passes the steel-tube seat in outer six square joint centre bores; Described two sections of adapter cavities 102 are communicated with the oval hole slot on inside and outside six square joints respectively; The oval hole slot of described inside and outside six square joints, adapter cavity 102 and the second steel pipe 104 form down-hole hammer supply air line; Described 3rd steel pipe 103 forms gas lift reverse circulation pipeline with the steel-tube seat of inside and outside six square joints; The centre bore of described inside and outside six square joints and the cavity between the first steel pipe 105 and the 3rd steel pipe 103 form deslagging pipeline.
Said structure can realize down-hole hammer air feed, gas lift reverse circulation air feed and deslagging three pipeline independent operatings in the inner so limited cylindrical space of drilling rod, connected by a pair special inside and outside six square joint between multiple drilling rod, three pipelines can be realized dock separately, and the sealing of respective pipeline can be ensured, also achieve common revolve dig and pneumatic down-hole hammer revolve dig between convenient to switch.
During installation, first water tap 8 can be fixedly connected with arbitrary-movement articulator 9, and wire rope 6 link is walked around gooseneck boom 7, by the first bearing pin assembly 15, the upper end of wire rope 6 with hoisting frame 16 is connected, then by the second bearing pin assembly 20, the lower end of hoisting frame 16 is connected with arbitrary-movement articulator 9.Subsequently scum pipe 3 is connected the collection slag car 1 and slag notch 17, air inlet pipe 4 connects air compressor machine 2 and air inlet port 19, and gaslift air inlet pipe 5 connects air compressor machine 2 and gaslift air inlet port 18.Then, water tap 8 can be connected with drilling rod 10, specifically: first sealing ring 24 is installed in seal groove corresponding on outer six square joints 21 of water tap 8 lower end, then outer six square joints 21 are docked with six square joints 23 in drilling rod upper end, and make it coordinates intact for the hole alignment of installing the 3rd bearing pin assembly 22, the axle that is provided with sealing ring with corresponding hole; Then again the 3rd bearing pin assembly 22 to be penetrated in corresponding pin shaft hole and to fix.As required more finally, the mode that drilling rod 10, reverse circulation conversion equipment 12 and direct circulation down-hole hammer 14 connect according to above-mentioned inside and outside six square joints 23,21 is connected, namely jointed rod 10 and reverse circulation conversion equipment 12, reverse circulation conversion equipment 12 and direct circulation down-hole hammer 14 and directly jointed rod 10 and direct circulation down-hole hammer 14 time, embodiment is similar with drilling rod 10 to connecting tap 8.
Wherein, constantly deepen, can increase the quantity of drilling rod 10 along with brill is dark, connect by inside and outside six square joints 23,21 each other successively head and the tail between multiple drilling rod 10, embodiment is also similar with drilling rod 10 to connecting tap 8.
When needs direct circulation is constructed, as long as remove reverse circulation conversion equipment 12, directly received by direct circulation down-hole hammer 14 on drilling rod 10, namely interior six square joints of drilling rod 10 combine with outer six square joints of direct circulation down-hole hammer 14, install sealing ring 24, and fixed by bearing pin.Meanwhile, reacting cycle air inlet port of can being passed the imperial examinations at the provincial level is shut, and utilizes another two passages to do direct circulation construction.The course of work: unit head 11 drives drilling rod 10 and direct circulation down-hole hammer 14 to turn round and cuts broken ground, cut rubble and rise along on the gap between drilling rod 10 and hole wall, overflow from aperture.
When needs reacting cycle is constructed, can by the upper end jointed rod 1 of reverse circulation conversion equipment 12, lower end connects direct circulation down-hole hammer 14.Concrete installation process is: be first installed on by sealing ring in the seal groove that outside drilling rod 10 end, six square joints are corresponding, then six square joints in reverse circulation conversion equipment 12 end are docked with outer six square joints of drilling rod 10, and make it coordinates intact for the pin shaft hole alignment of installing bearing pin, the axle that is provided with sealing ring with corresponding hole, then again bearing pin to be penetrated in the pin shaft hole of correspondence and to fix.When reverse circulation conversion equipment terminates on direct circulation down-hole hammer 14 for 12 times, first sealing ring is installed in the seal groove that outside reverse circulation conversion equipment 12 end, six square joints are corresponding, then six square joints in direct circulation down-hole hammer 14 end are docked with outer six square joints of reverse circulation conversion equipment 12, and make it coordinates intact for the pin shaft hole alignment of installing bearing pin, the axle that is provided with sealing ring with corresponding hole.Then again bearing pin to be penetrated in corresponding pin shaft hole and to fix.
The course of work: drive drilling rod 10, reverse circulation conversion equipment 12 and direct circulation down-hole hammer 14 to turn round by unit head and cut broken ground, mud, by having become in hole wall injection hole above reverse circulation conversion equipment 12 casing 125 with retaining wall, prevents pore-forming collapse hole.Reacting cycle gaslift source of the gas and direct circulation down-hole hammer 14 supply source of the gas and inject bottom reverse circulation conversion equipment 12 along each respective apertures of drilling rod 10, the power gas source rock cutting of direct circulation down-hole hammer 14 by injecting, institute's rock cutting enters bar center deslagging by reverse circulation conversion equipment 12 mud hole 129 after fragmentation under the effect of residual air, under the effect of reacting cycle gaslift source of the gas, by institute's deslagging delivery port.
Source of the gas supply process: the gas that air compressor machine produces enters water tap 8 through air inlet port 19, then the down-hole hammer supply air line of drilling rod 10 and reverse circulation conversion equipment 12 correspondence is entered successively along the down-hole hammer supply air line in water tap 8, finally enter direct circulation down-hole hammer 14, the power gas source rock cutting of direct circulation down-hole hammer 14 by injecting, institute's rock cutting enters bar center by reverse circulation conversion equipment 12 mud hole 129 after fragmentation under the effect of residual air; Meanwhile, another gas that air compressor machine produces enters gaslift air inlet port through gaslift air inlet pipe, then enters drilling rod 10 and reverse circulation conversion equipment 12 gaslift supply pipe gas-lift slag discharging successively along the down-hole hammer supply air line in water tap 8; Slag, along reverse circulation conversion equipment 12 and drilling rod 10, from water tap 8 by scum pipe 3, is entered collection slag car process recycling and uses by institute's deslagging.
Revolution and drilling rod feeding process: unit head drives drilling rod 10 and the revolution of the water tap 8 connected, reverse circulation conversion equipment 12 and direct circulation down-hole hammer 14 to cut broken ground, then, along with the fragmentation of rock, the wire rope 6 that rig is released is transferred, drilling rod 10 feed motion, arbitrary-movement articulator 9 on water tap 8 bores mast along rig and moves up and down, and prevents drilling rod deflection in drilling process.When drilling depth reaches working design requirement, rope hoisting, proposes aperture by whole device.
From said structure, the present invention utilizes direct circulation down-hole hammer, by installing, removing reverse circulation transformational structure, reach the object of positive and negative circulation construction, and adopt interior apertured to hammer the water tap of air feed, gas lift reverse circulation air feed and deslagging three pipelines, drilling rod and reverse circulation conversion equipment into shape, make unit head without the need to changing, can realize common revolve dig and pneumatic down-hole hammer revolve dig between convenient to switch.

Claims (10)

1. one kind can realize the rotary drilling rig of positive and negative circulation pneumatic down-hole hammer engineering method, comprise rotary drilling rig fuselage (13), be arranged on rig in rotary drilling rig fuselage (13) bore masthead end gooseneck boom (7), walk around gooseneck boom (7) wire rope (6), be arranged on the drilling rod (10) that rig bores the unit head (11) on mast and be arranged in unit head (11)
It is characterized in that, also comprise water tap (8), arbitrary-movement articulator (9), reverse circulation conversion equipment (12) and direct circulation down-hole hammer (14), described water tap (8), drilling rod (10) and reverse circulation conversion equipment (12) inside are all provided with down-hole hammer air feed, gas lift reverse circulation air feed and deslagging three pipelines; Described water tap (8) is fixedly mounted on arbitrary-movement articulator (9), the lower end of water tap (8) is connected with the upper end of drilling rod (10), the lower end of described drilling rod (10), through unit head (11), is transmitted to revolve and is dug power; The rig that described arbitrary-movement articulator (9) is arranged on rotary drilling rig fuselage (13) bores on mast, and can move up and down along rig brill mast under the effect of wire rope (6); When needs reacting cycle is constructed, the lower end of the upper end of reverse circulation conversion equipment (12) with drilling rod (10) can be connected, and the lower end of reverse circulation conversion equipment (12) is connected with direct circulation down-hole hammer (14), carry out reacting cycle construction; When needing direct circulation to construct, dismountable reverse circulation conversion equipment (12), directly receives the lower end of drilling rod (10), carries out direct circulation construction by direct circulation down-hole hammer (14).
2. a kind of rotary drilling rig realizing positive and negative circulation pneumatic down-hole hammer engineering method according to claim 1, it is characterized in that, also comprise the collection slag car (1) and air compressor machine (2), the described collection slag car (1) is connected with the slag notch (17) of water tap (8) by scum pipe (3), air compressor machine (2) by the air inlet port (19) of air inlet pipe (4), gaslift air inlet pipe (5) and water tap (8), gaslift air inlet port (18) is corresponding is connected.
3. one according to claim 1 just can realize, the rotary drilling rig of reacting cycle pneumatic down-hole hammer engineering method, it is characterized in that, described water tap (8), in the link of drilling rod (10) and reverse circulation conversion equipment (12) is all provided with and mutually mates, outer six square joints (23, 21), between water tap (8) and drilling rod (10), between drilling rod (10) and drilling rod (10), interior by a couple being arranged on respective end between drilling rod (10) and reverse circulation conversion equipment (12), outer six square joints (23, 21) connect, each to passing through the 3rd bearing pin assembly (22) connection between inside and outside six square joints (23,21).
4. a kind of rotary drilling rig realizing positive and negative circulation pneumatic down-hole hammer engineering method according to claim 3, it is characterized in that, between described inside and outside six square joints (23,21), being provided with the sealing ring (24) for ensureing respective line seal.
5. one according to claim 1 just can realize, the rotary drilling rig of reacting cycle pneumatic down-hole hammer engineering method, it is characterized in that, described water tap (8) comprises three-channel housing assembly (812), revolving body (810), make the bearing (803) of three-channel housing assembly (812) and revolving body (810) relative motion, the outer six square shaft assemblies (808) of the output be connected with revolving body (810) and inner ring are fixed on arbitrary-movement articulator (9), the pivoting support (804) of the fixing outer six square shaft assemblies (808) in outer ring, described three-channel housing assembly (812) comprises housing I (813), housing II (815) and housing III (816), housing I (813) is provided with scum hole and flange, and construction medium stone and foreign material are discharged by scum hole, and flange is connected with transition body (814), transition body (814) lower end and housing II (815) are fixed, and housing II (815) is provided with gas lift reverse circulation supply hole, and gas lift reverse circulation supply hole can provide source of the gas in construction, realizes gas-lift slag discharging, housing II (815) lower end and housing III (816) are fixed, and housing III (816) is provided with down-hole hammer air inlet, and in construction, down-hole hammer air inlet can be used for providing source of the gas to supply down-hole hammer work.
6. a kind of rotary drilling rig realizing positive and negative circulation pneumatic down-hole hammer engineering method according to claim 5, it is characterized in that, described three-channel housing assembly (812) is fixed on arbitrary-movement articulator (9), and arbitrary-movement articulator (9) is provided with bearing and installs seam; The outer ring of described bearing (803) is installed seam with arbitrary-movement articulator (9) bearing and is coordinated, inner ring coordinates with revolving body (810) to be installed, and three-channel housing assembly (812) and arbitrary-movement articulator (9) are not rotated; Be provided with the rotatory sealing preventing source of the gas from leaking for sealing each passage between revolving body (810) and three-channel housing assembly (812), making between revolving body (810) and three-channel housing assembly (812) can relative motion mutually; Revolving body (810) is connected with outer six square shaft assemblies (808), outer six square shaft assemblies (808) are designed with installing hole, outer six square shaft assemblies (808) can be made to be connected with pivoting support (804) outer ring, and pivoting support (804) inner ring is fixed on arbitrary-movement articulator (9); Outer six square shaft assemblies (808) be provided with six square joints in drilling rod (10) end with the use of outer six square joints.
7. a kind of rotary drilling rig realizing positive and negative circulation pneumatic down-hole hammer engineering method according to claim 1, it is characterized in that, described arbitrary-movement articulator (9) is provided with hoisting frame (16), the upper end of described hoisting frame (16) is connected with wire rope (6).
8. a kind of rotary drilling rig realizing positive and negative circulation pneumatic down-hole hammer engineering method according to claim 1, it is characterized in that, described reverse circulation conversion equipment (12) comprises short drill pipe (121), supply air line and dreg removing system; The upper end of described short drill pipe (121) is provided with interior six square joints, and lower end is provided with outer six square joints; The gaslift supply pipe (123) being communicated with interior six square joints I (4) and being used for gas-lift slag discharging is provided with in described short drill pipe (121); Described supply air line comprises air inlet pipe I (124), adapter cavity (122) and curved air inlet pipe II (128), air inlet pipe I (124) upper end is communicated with interior six square joints by adapter cavity (122), air inlet pipe I (124) lower end connects curved air inlet pipe II (128) by adapter cavity (122), and curved air inlet pipe II (128) is communicated with outer six square joints; Described dreg removing system comprises mud hole (129) and scum pipe a (127), described scum pipe a (127) is arranged in short drill pipe (121), and be communicated with interior six square joints, short drill pipe (121) bottom offers some mud holes (129) be communicated with scum pipe a (127).
9. a kind of rotary drilling rig realizing positive and negative circulation pneumatic down-hole hammer engineering method according to claim 7, it is characterized in that, described short drill pipe (121) lower, outer perimeter is provided with casing (125), and casing (125) is arranged with the guard shield (126) for collecting slag.
10. a kind of rotary drilling rig realizing positive and negative circulation pneumatic down-hole hammer engineering method according to claim 1, it is characterized in that, described drilling rod (10) comprises the outer bar (101) of hollow, the two ends of described outer bar (101) are connected with interior six square joints of centre bore and outer six square joints respectively, be equipped with steel-tube seat in the centre bore of described inside and outside six square joints, on inside and outside six square joints, the periphery of centre bore has oval hole slot; Two ends, described outer bar (101) inner side are provided with the cylindrical transition chamber (102) concentric with outer bar (101), described outer bar (101) inner sleeve has the first steel pipe (105) placed with one heart and traverse two sections of adapter cavities (102), and the two ends of the first steel pipe (105) are docked with the centre bore of inside and outside six square joints respectively; Second steel pipe (104) of connection two sections of adapter cavities (102) is furnished with in ring-shaped cylinder cavity between described outer bar (101) and the first steel pipe (105); The 3rd steel pipe (103) crossing the first steel pipe (105) is furnished with in described first steel pipe (105), the steel-tube seat in interior six square joint centre bores is inserted in one end of described 3rd steel pipe (103), and the other end passes the steel-tube seat in outer six square joint centre bores; Described two sections of adapter cavities (102) are communicated with the oval hole slot on inside and outside six square joints respectively; The oval hole slot of described inside and outside six square joints, adapter cavity (102) and the second steel pipe (104) form down-hole hammer supply air line; Described 3rd steel pipe (103) forms gas lift reverse circulation pipeline with the steel-tube seat of inside and outside six square joints; The centre bore of described inside and outside six square joints and the cavity between the first steel pipe (105) and the 3rd steel pipe (103) form deslagging pipeline.
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CN111287743B (en) * 2020-04-10 2022-08-23 中国地质科学院探矿工艺研究所 Air reverse circulation continuous sampling drilling system and process method for water-bearing stratum
CN112377112A (en) * 2020-09-30 2021-02-19 徐州雷曼机械科技有限公司 Telescopic reverse circulation down-the-hole hammer drill rod

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