CN209385061U - A kind of sandblasting drilling machine - Google Patents
A kind of sandblasting drilling machine Download PDFInfo
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- CN209385061U CN209385061U CN201920053702.4U CN201920053702U CN209385061U CN 209385061 U CN209385061 U CN 209385061U CN 201920053702 U CN201920053702 U CN 201920053702U CN 209385061 U CN209385061 U CN 209385061U
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- hole
- sandblasting
- drilling
- sand
- water
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Abstract
The utility model relates to the improvement of horizontal water conservancy diversion drilling machine, specifically a kind of sandblasting drilling machine.The utility model includes hole-drilling system, and sand blasting system is connected on hole-drilling system；Sandblasting can prevent water conservancy diversion hole plug, even if collapse hole, hole bottom layer of sand can also become effective penetrating passage in deflector hole；Drill bit and drilling rod exit that deflector hole is synchronous with deep hole sandblasting to be carried out, and without casing, no replacement is required drilling tool, improve drilling efficiency.The blind hole rate of deflector hole that the utility model can make at least reduces 15%, receives liquid rate and improves 10% or more, remarkable in economical benefits.
Description
Technical field
The utility model relates to the improvement of horizontal water conservancy diversion drilling machine, specifically a kind of sandblasting drilling machine.
Background technique
Currently, ion type rareearth mine is exploited using in_situ leaching technique, the technique is with land occupation is few, does not break
Bad massif topsoil, less engineering investment, labor intensity are low, do not generate the advantages that leaching mine tailings.It is directly bored on mine surface vertical
Liquid injection hole injects ore leachate from liquid injection hole to ore body, and the leaching mine agent in ore leachate exchanges instead with the rare earth ion in ore body
It answers, to form the leaching mine mother liquor containing rare earth ion and downward seepage flow, mother liquor is collected by the liquid collection engineering of ore body lower part.Receive liquid
Engineering includes horizontal deflector hole, liquid collecting tunnel and intercepting gutter, and the leaching mine mother liquor of collection is most of to ooze out from horizontal deflector hole, then converges
Enter liquid collecting tunnel or intercepting gutter.Liquid collection engineering needs to bore horizontal deflector hole that is a large amount of parallel and being equally spaced.
Currently, the construction of horizontal deflector hole is mainly bored using a kind of dedicated km of Rare Earth Mine, the drill configuration is simply, certainly
Heavy and light, chisel edge injection water when drilling have at low cost, the small feature of equipment loss that drills with the hydraulic erosion soil body, and
Since the water pressure of jet stream is low, flow is big, a large amount of discarded slurry pollution environment are generated；The light-weight design that km bores, causes to bore
Bar rigidity is small, and it is flexible to bore drilling rod when compared with deep hole；Km bore power it is also smaller, mainly with water jet pore-forming and pressure it is not high, institute
It is low with the drilling efficiency for encountering hard soil layer.
On the other hand, collapse hole blocking is easy after horizontal deflector hole pore-forming.Disturbed soil when because of drilling, water jet make hole week soil
Body saturation softening, and during receiving liquid, the soil body is taken away that part is fine grain to be influenced by effect of water pressure and seepage flow for a long time, raw
Collapse hole unavoidably occurs for deflector hole during production.At least 40% -50% deflector hole is because collapse hole blocking is as blind in production
The soil property collapse hole in hole, especially easy disintegrating is more serious.The phenomenon that can be observed in production is: several adjacent deflector holes, mother liquor
Outflow concentrates on individual deflector holes, and part deflector hole has a small amount of mother liquor to flow out, and there are also the even no liquid outflows of a large amount of deflector holes.Cause
For collapse hole blocking, the deflector hole being equally spaced cannot effectively cover entire receipts liquid zone domain, reduce and receive liquid rate.
It is bored compared to the km generally used now, advantageously, it is a kind of to shotcrete drilling machine (MX-60A type shotcrete drilling machine)
With bit cutting soil body drilling, the drilling machine of high-pressure water jet reaming pile is sprayed in side, and power is stronger, and drilling rod is more rigid, but
Existing shotcrete drilling machine not can solve collapse hole blockage problem still for horizontal water conservancy diversion hole drilling.
Utility model content
The purpose of the utility model is to provide a kind of sandblasting drilling machines, and mud emission amount is big when solving to bore horizontal deflector hole, at
The problem of Kong Houyi collapse hole blocks.
The technical solution of the utility model includes: a kind of sandblasting drilling machine, including hole-drilling system, sandblasting system is connected on hole-drilling system
System；The sand blasting system includes Sand pump and motor, and motor is electrically connected with frequency converter, they are installed on pedestal；Inhale sand
The import of pump connects a tee tube, and by sand-suction hose and sand Chi Liantong, the other end connects water inlet pipe for one end of tee tube, into
Water pipe is connected to pond, and ball valve is housed on water inlet pipe；The outlet of Sand pump connects the sebific duct that shakes out, and electromagnetic current is housed on the sebific duct that shakes out
Meter；Shake out sebific duct outlet on dual current divider is installed, a connector of dual current divider is through the dynamic of the hole-drilling system
Power head is connected to the inner tube of drilling rod, and another connector is connected to the sparge pipe of the hole-drilling system, sparge pipe and drilling rod it is interior
Closed cavity connection between pipe and outer tube；Axial line is provided with a sandblasting through-hole, sandblasting on the drill bit of the hole-drilling system
Through-hole is connected to the inner tube of drilling rod, and check-valves is housed on sandblasting through-hole；It is additionally provided with one on drill bit and is parallel to sandblasting through-hole
Water spray through-hole, water spray through-hole are connected to the closed cavity between the inner and outer tubes of drilling rod, and water is housed in the outlet for through-hole of spraying water
Nozzle.
The hole-drilling system is shotcrete drilling machine (MX-60A type shotcrete drilling machine).
The sandblasting through-hole diameter of the drill bit is 30-40mm.
The jet pressure of the (operating) water nozzle of the drill bit is 10-15MPa.
It is calculated by the astern speed v of hole-drilling system control drill bit, the astern speed v of drill bit by relational expression (1) when sandblasting:
In relational expression (1): v is the astern speed of drill bit, and Q is the flow of the water flow containing sand, and η is the filling of sand in deflector hole
Rate, 35%≤η≤50%, d are water conservancy diversion bore dia, and k is the apparent density of sand, and l is the bulk density of saturated sand, and m is the close of water
Degree, n are the density of the water flow containing sand.
The astern speed v of the drill bit is controlled in 4.3-7.4m/min ranges.
Volume flow when the sand suction pump sandblasting is 150-200L/min, and jet density containing sand is 1.14-1.23kg/
L。
The utility model accelerates brill using the collective effect of high-pressure water jet impact (few with water) and alloy cutter head cutting
Hole speed is especially obviously improved in the rate of penetration of hard soil layer, reduces the abrasion and waste pulp discharge amount of alloy cutter head；Sandblasting
Function can prevent water conservancy diversion hole plug, even if collapse hole, hole bottom layer of sand can also become effective penetrating passage in deflector hole；Drill bit and
Drilling rod exits that deflector hole is synchronous with deep hole sandblasting to be carried out, and without casing, no replacement is required drilling tool, improves drilling efficiency.Deflector hole
Blind hole rate at least reduce 15%, receive liquid rate and improve 10% or more, remarkable in economical benefits.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the structural schematic diagram of the utility model drill bit.
Fig. 3 is the structural schematic diagram of the dual current divider of the utility model and adjacent elements.
Fig. 4 is the structural schematic diagram of the utility model tee tube and adjacent elements.
In figure: 1. drill bits, 2. drilling rods, 3. power heads, 4. dual current dividers, 5. advance frames, 6. racks, 7. sparge pipes, 8.
Shake out sebific duct, 9. electromagnetic flowmeters, 10. frequency converters；11. motor, 12. sand suction pumps, 13. tee tubes, 14. ball valves, 15. water inlets
Pipe, 16. sand-suction hoses, 17. sand ponds, 18. ponds, 19. high-pressure hydraulic pumps；
1-1. sandblasting through-hole, 1-2. water spray through-hole, 1-3. (operating) water nozzle.
Arrow indicates water or sand flow direction in figure.
Specific embodiment
As shown in Figure 1, the utility model is made of hole-drilling system and the sand blasting system connecting with hole-drilling system；
Hole-drilling system uses MX-60A type shotcrete drilling machine, comprising: power head 3, advance frame 5, rack 6, rack 6 are placed in ground
Hole-drilling system is supported, advance frame 5 is mounted in rack 6, and power head 3 on the track of advance frame 5, bore by the connection of 3 front end of power head
Bar 2, rear end connect dual current divider 4, and power head 3 can drive drilling rod 2 to advance, retreat and rotation.
The sand blasting system includes Sand pump 12 and motor 11, and motor 11 is electrically connected with frequency converter 10, they are respectively mounted
On pedestal；The import of Sand pump 12 connects a tee tube 13, and one end of tee tube 13 passes through sand-suction hose 16 and sand pond 17
Connection, the other end connect water inlet pipe 15, and water inlet pipe 15 is connected to pond 18, and ball valve 14 is housed on water inlet pipe 15；Sand pump 13
Outlet connects the sebific duct 8 that shakes out, and electromagnetic flowmeter 9 is housed on the sebific duct 8 that shakes out；Shake out sebific duct 8 outlet on dual shunting is installed
The inner tube of device 4, the drilling rod 2 of a connector and hole-drilling system for dual current divider 4 is connected to another connection (through power head 3)
Mouth is connected to the sparge pipe 7 of the hole-drilling system, and the closed cavity between sparge pipe 7 and the inner and outer tubes of drilling rod 2 is connected to.
Axial line is provided with sandblasting a through-hole 1-1, sandblasting through-hole 1-1 and drilling rod 2 on the drill bit 1 of the hole-drilling system
Inner tube is connected to, and check-valves is housed on sandblasting through-hole 1-1；The water spray that one is parallel to sandblasting through-hole 1-1 is additionally provided on drill bit 1 to lead to
Hole 1-2, water spray through-hole 1-2 are connected to the closed cavity between the inner and outer tubes of drilling rod 2, are filled in the outlet for the through-hole 1-2 that sprays water
There is (operating) water nozzle 1-3, drill bit 1 and 2 outer diameter of drilling rod are 89mm, sandblasting through-hole 1-1 diameter 30mm, (operating) water nozzle 1-3 aperture 1.6mm.
When boring deflector hole using the utility model, Railway Project is paid attention to:
(1) flow and sand content of debugging sand blasting system are needed before drilling.The medium-fine sand that sand pond 17 is packed into a half volume refills
Full water lies in sand-suction hose 16 in sand pond 17, and nozzle half is submerged in layer of sand, then starts Sand pump 12, from electromagnetic current
Meter 9 reads the flow of the water flow containing sand, samples water flow containing sand from the sandblasting through-hole 1-1 of the drill bit 1 and surveys density；Adjust frequency conversion
Device 10 changes the revolving speed of motor 11 to change the flow of sand suction pump 12, and regulation ball valve 14 controls water inlet pipe 15 and enters sand suction pump
The volume flow of sand suction pump 12 is adjusted to 150L/min, water containing sand to the sand content and density of adjusting water flow containing sand by water flow
Current density is adjusted to 1.23kg/L.
(2) deflector hole is bored, moving frame 6 makes drill bit 1 be directed at hole location, and the elevation angle for adjusting advance frame 5 is 2 °；Drill bit 1 with
The fltting speed of 45r/min revolving speed and 4m/min drilling start high-pressure hydraulic pump 19, and setting pressure is 15MPa, and drill bit 1 is with high pressure
The collective effect drilling of water jets impact and alloy cutter head cutting reaches projected depth when boring depth 30m with drilling extension drill rod 2
Stop drilling, closes high-pressure hydraulic pump 19.
(3) deep hole sandblasting, starting Sand pump 12 pump water flow containing sand, water flow containing sand from the sebific duct 8 that shakes out, dual current divider 4,
Drilling rod 2, sandblasting through-hole 1-1 enter deflector hole, and the sand grains in deflector hole deposits rapidly；The volume flow 150L/ of the water flow containing sand
Min, density 1.23kg/L, drill bit 1 should at the uniform velocity be retreated with the speed of 7.4m/min, and when drill bit 1 exposes aperture, deflector hole sandblasting is complete
At closing Sand pump 12.
(4) the utility model is translated into 0.8m, bores next deflector hole.
Experimental Comparison: certain in-situ ionic rare earth soaks ore mining field and uses the utility model construction diversion hole, compares same mining area
Bore deflector hole using other drilling machines, the blind hole rate of deflector hole reduces 23%, receive liquid rate and improve 12%, remarkable in economical benefits.
The above is only the preferred embodiments of the utility model, are not intended to limit the utility model, all in the utility model
Within spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the protection scope of the utility model
It is interior.
Claims (7)
1. a kind of sandblasting drilling machine, including hole-drilling system, it is characterized in that: connecting sand blasting system on hole-drilling system；The sandblasting
System includes Sand pump and motor, and motor is electrically connected with frequency converter, they are installed on pedestal；The import connection one of Sand pump
A tee tube, by sand-suction hose and sand Chi Liantong, the other end connects water inlet pipe for one end of tee tube, and water inlet pipe and pond connect
It is logical, ball valve is housed on water inlet pipe；The outlet of Sand pump connects the sebific duct that shakes out, and electromagnetic flowmeter is housed on the sebific duct that shakes out；Mastic out
Dual current divider is installed, a connector of dual current divider is through the power head of the hole-drilling system and drilling rod in the outlet of pipe
Inner tube connection, another connector is connected to the sparge pipe of the hole-drilling system, between sparge pipe and the inner and outer tubes of drilling rod
Closed cavity connection；Axial line is provided with a sandblasting through-hole on the drill bit of the hole-drilling system, sandblasting through-hole and drilling rod
Inner tube is connected to, and check-valves is housed on sandblasting through-hole；It is additionally provided with a water spray through-hole for being parallel to sandblasting through-hole on drill bit, sprays water
Closed cavity between through-hole and the inner and outer tubes of drilling rod is connected to, and (operating) water nozzle is housed in the outlet for through-hole of spraying water.
2. a kind of sandblasting drilling machine according to claim 1, it is characterized in that: hole-drilling system is shotcrete drilling machine.
3. a kind of sandblasting drilling machine according to claim 1, it is characterized in that: the sandblasting through-hole diameter of the drill bit is 30-
40mm。
4. a kind of sandblasting drilling machine according to claim 1, it is characterized in that: the jet pressure of the (operating) water nozzle of the drill bit is
10—15MPa。
5. a kind of sandblasting drilling machine according to claim 1, it is characterized in that: controlling the retrogressing of drill bit when sandblasting by hole-drilling system
The astern speed v of speed v, drill bit are calculated by relational expression (1):
In relational expression (1): Q is the flow of the water flow containing sand, and η is the filling rate of sand in deflector hole, and 35%≤η≤50%, d are water conservancy diversion
Bore dia, k are the apparent density of sand, and l is the bulk density of saturated sand, and m is the density of water, and n is the density of the water flow containing sand.
6. a kind of sandblasting drilling machine according to claim 5, it is characterized in that: the astern speed v of the drill bit is controlled 4.3-
7.4m/min range.
7. a kind of sandblasting drilling machine according to claim 1, it is characterized in that: the volume flow when Sand pump sandblasting is
150-200L/min, jet density containing sand are 1.14-1.23kg/L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920053702.4U CN209385061U (en) | 2019-01-12 | 2019-01-12 | A kind of sandblasting drilling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920053702.4U CN209385061U (en) | 2019-01-12 | 2019-01-12 | A kind of sandblasting drilling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209385061U true CN209385061U (en) | 2019-09-13 |
Family
ID=67853144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920053702.4U Expired - Fee Related CN209385061U (en) | 2019-01-12 | 2019-01-12 | A kind of sandblasting drilling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209385061U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109505519A (en) * | 2019-01-12 | 2019-03-22 | 江西理工大学 | A kind of sandblasting drilling machine |
| CN111877995A (en) * | 2020-07-20 | 2020-11-03 | 南京集优智库信息技术有限公司 | Water outlet type trenching device distributed at center of main shaft of cutter head |
-
2019
- 2019-01-12 CN CN201920053702.4U patent/CN209385061U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109505519A (en) * | 2019-01-12 | 2019-03-22 | 江西理工大学 | A kind of sandblasting drilling machine |
| CN109505519B (en) * | 2019-01-12 | 2023-10-24 | 江西理工大学 | Sand blasting drilling machine |
| CN111877995A (en) * | 2020-07-20 | 2020-11-03 | 南京集优智库信息技术有限公司 | Water outlet type trenching device distributed at center of main shaft of cutter head |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190913 Termination date: 20220112 |