CN208310803U - A kind of shield machine grouting device - Google Patents
A kind of shield machine grouting device Download PDFInfo
- Publication number
- CN208310803U CN208310803U CN201820881632.7U CN201820881632U CN208310803U CN 208310803 U CN208310803 U CN 208310803U CN 201820881632 U CN201820881632 U CN 201820881632U CN 208310803 U CN208310803 U CN 208310803U
- Authority
- CN
- China
- Prior art keywords
- cavity
- connect
- pressure
- valve
- low
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The utility model discloses a kind of shield machine grouting devices, including casting head, Grouting Pipe, grouting pump, pulp injection tank, controller and low-pressure air propeller；Casting head includes the second cavity, it is arranged in intracorporal second cavity of the second chamber, the first cavity being connect with the second cavity, the first cavity in the first cavity is set, it is arranged in the first cavity, and the piston head with the inner wall sliding contact of first cavity, it is arranged through the first cavity and the second cavity, and the piston rod that one end is connect with piston head, it is arranged in the second cavity, and the thrust collar being connect with the other end of piston rod, the grouting port of the front end of second cavity is set, it is separately positioned on the rear end of the first cavity, and the low-pressure air pipe and pressure sensor being connected to the first cavity, the pressure release runner being provided in piston head, and it is provided with the relief hole on the first cavity.Through the above scheme, the utility model has many advantages, such as that structure is simple, cleaning effect is good, safe and reliable.
Description
Technical field
The utility model relates to shield machine technical field, especially a kind of shield machine grouting device.
Background technique
With the continuous propulsion of Modernized City Construction, underground space development has become the important link of urban construction, together
When, with constantly improve for shield method tunnel construction technique, so that the progress that Urban Underground Space Excavation is advanced by leaps and bounds.Shield
Structure be with the consistent shield shell of tunnel-shaped in, configuration propulsion system, main drive system, screw conveyor and Belt Conveying
The tunnel excavation special-purpose machinery of the components such as mechanism, duct piece assembling machine.Since shield method has, automation small to surrounding environment influence
The advantages that degree is high, construction is quick, high-quality and efficient, safety and environmental protection, is widely used in Urban Underground Space Excavation.
It is generally known that (need to be deviate from by progress slip casting synchronous with digging into shield tail gap during shield is dug into
The pipe-plate lining of shield tail and the structure void of Rock And Soil) formed the extremely short time in, fill suitable injecting paste material and filled out
It is real, the Rock And Soil of surrounding is supported, is effectively prevented ground collapsing, and then the sedimentation for controlling earth's surface also can at the same time
The problems such as fixed section of jurisdiction position prevents section of jurisdiction back ponding, guarantees after shield tunnel construction without deformation, leak.
Currently, traditional Shield-type machinery equipment mainly uses two fluid grouting and single fluid grouting two ways, two fluid grouting is
Waterglass is replaced in injection soil with calcium chloride solution, two kinds of solution, which react rapidly, generates silica gel and gel of calcium silicate, plays
Cementing and filling pore effect improves the intensity of soil and bearing capacity.Two fluid grouting is usually used in silt, sand and bankets
Foundation stabilization.And single fluid grouting is as its name suggests, and a kind of slurries and a set of slurry transporting system is used to carry out slip casting.The two is compared,
There are grout cures speed for single fluid grouting slowly, cement slurry sets speed is uncontrollable, influences the problems such as construction efficiency.Therefore, big portion
The shield machine divided uses two fluid grouting, and still, there are certain drawbacks, such as slip casting mixing cavity portion to be easy blocking for two fluid grouting liquid,
So being cleaned during shield is dug into.
Utility model content
In view of the above shortcomings, the purpose of this utility model is to provide a kind of shield machine grouting devices, this is practical new
Type the technical solution adopted is as follows:
A kind of shield machine grouting device several casting heads of shield machine lateral edge is arranged in including annular, with casting head
The Grouting Pipe of connection, the grouting pump being connect with Grouting Pipe, the pulp injection tank being connect with grouting pump, the controller being connect with grouting pump,
And the low-pressure air propeller being connect with casting head.
Wherein, any casting head includes the second cavity connecting with Grouting Pipe, is arranged in the second chamber intracorporal second
The first cavity in the first cavity is arranged in cavity, the first cavity being connect using bolt with the second cavity, and setting is in the first sky
The piston head of inner wall sliding contact intracavitary and with first cavity, through the first cavity and the second cavity setting and one end with
The piston rod of piston head connection, the thrust collar for being arranged in the second cavity and connecting with the other end of piston rod are arranged second
The grouting port of the front end of cavity, the low-pressure air pipe and pressure for being separately positioned on the rear end of the first cavity and being connected to the first cavity
Force snesor, the pressure release runner being provided in piston head, is provided on the first cavity and the piston head promotes in low-pressure air and makees
With the lower relief hole being connected to the pressure release runner, and it connect with the first cavity, for the fixed pedestal of fixed installation.
The low-pressure air propeller includes the solenoid valve in three runbacks connecting with low-pressure air pipe, using pipeline and electricity
The low pressure gasholder of magnet valve connection, the low pressure air compressor group being connect with low pressure gasholder, and the pressure being connect with low pressure gasholder
Power detection unit.
The pressure sensing cell, low pressure air compressor group, solenoid valve and pressure sensor are connect with controller.
Further, the shield machine grouting device further includes the first cushion that the rear end of the first cavity is arranged in, if
The second cushion in the front end of the first cavity is set, and the third cushion of the rear end of the second cavity is set.
Preferably, the shield machine grouting device further includes the peace for being arranged on the first cavity and being connected to the first cavity
Full valve.
Further, the shield machine grouting device further includes that first through hole on fixed pedestal and the is arranged in annular
Three through-holes, and annular is arranged on the second cavity and the second through-hole corresponding with first through hole position.
Further, the low pressure air compressor group includes sequentially connected low pressure air compressor, non-return valve, safety relief valve
With the first normally open valve.Wherein, the outlet of first normally open valve is connect with low pressure gasholder.
Further, the pressure sensing cell includes that the second normally open valve connecting respectively with low pressure gasholder and third are normal
Valve opening, the pressure gauge being connect with third normally open valve, and the pressure transmitter being connected between the second normally open valve and controller.
Further, the shield machine grouting device, further include be connected to it is normal between low pressure gasholder and solenoid valve
Opening ball valve, pressure reducing valve and the 4th normally open valve.Wherein, the normally opened ball valve is connect with low pressure gasholder, and the 4th normally open valve with
Solenoid valve connection.
Further, the shield machine grouting device further includes being connected using the bottom of pipeline and low pressure gasholder
Blowdown valve.
Preferably, the controller includes the ad/da converter connecting with pressure transmitter and pressure sensor, Yi Jifen
Contactor and PLC the control chip not connect with ad/da converter.Wherein, the solenoid valve is connect with ad/da converter, and
And the contactor is connect with low pressure air compressor.
Further, the shield machine grouting device further includes that at piston head sides edge and at least configuration two is arranged
The sealing ring of group.
Compared with prior art, the utility model has the following beneficial effects:
(1) the utility model be dexterously arranged low-pressure air promote mud utilize pressure while grouting pump suppresses slip casting
Force snesor measures the pressure of the second cavity indirectly.When the second cavity, which exists, to be blocked, the first sky is made while continuous grouting
Intracavitary pressure increase, when the pressure value of pressure sensor detection, which is greater than low-pressure air, promotes operating pressure value, in controller
Under the action of, drive magnetic valve movement, and low-pressure air is injected into the first cavity by low-pressure air pipe, and then push piston row
Into the mud in the second cavity of realization is cleared up.
(2) the utility model is respectively provided with cushion in the first cavity and the second cavity, in propulsion or compression, has played
Effect ground damping, buffering, collsion damage is reduced to minimum, being designed in this way is advantageous in that, can reduce mechanical oscillation and prolong
The service life of long equipment.In addition, the utility model offers pressure release runner in piston head, and it is arranged on the first cavity
There is relief hole.Before mud is advancing to the position, the low-pressure air in the first cavity is drained using pressure release runner and relief hole, reduces and lives
The impact force of plug and cushion.
(3) the utility model is also provided with safety valve on the first cavity, and if only if the pressure in the first cavity is more than
When safe action value, the air with pressure in the first cavity is discharged by safety valve.The safety valve can play effectively the first cavity
Ground protection.
(4) the utility model detects the pressure of grouting equipment by setting pressure transmitter, pressure sensor, and
Under the action of controller, realize that low-pressure air is suppressed automatically, and the mud of automatic cleaning blocking.In addition, due to being deposited in air
In moisture, so that there are a certain amount of ponding for low pressure gasholder bottom, therefore, the utility model is provided in low pressure gasholder bottom
Blowdown valve reduces moisture to the corrosion oxidation of low pressure gasholder by the way that ponding is periodically discharged.In conclusion the utility model has
Have the advantages that structure is simple, cleaning effect is good, safe and reliable, there is very high practical value and popularization in shield machine technical field
Value.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the utility model embodiment, will use below required in embodiment
Attached drawing is briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore is not to be seen as
It is the restriction to protection scope, it to those skilled in the art, without creative efforts, can be with root
Other relevant attached drawings are obtained according to these attached drawings.
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the utility model in slip casting status diagram.
Fig. 3 is the utility model in pressure release involution status diagram.
Fig. 4 is the structural schematic diagram of low-pressure air propeller.
Fig. 5 is the partial structurtes block diagram of controller.
In above-mentioned attached drawing, the corresponding component names of appended drawing reference are as follows:
The first cavity of 1-, the second cavity of 2-, the second cavity of 3-, 4- Grouting Pipe, the first cavity of 5-, 6- piston head, 7- low pressure
Tracheae, 8- pressure sensor, 9- safety valve, 10- pressure release runner, 11- relief hole, 12- piston rod, 13- fixed pedestal, 14- are pushed away
Power head, 15- first through hole, the second through-hole of 16-, 17- third through-hole, the first cushion of 18-, the second cushion of 19-, 20- third
Cushion, 21- low pressure air compressor, 22- non-return valve, 23- safety relief valve, the first normally open valve of 24-, the second normally open valve of 25-, 26-
Pressure transmitter, 27- third normally open valve, 28- pressure gauge, the normally opened ball valve of 29-, 30- pressure reducing valve, the 4th normally open valve of 31-, 32- electricity
Magnet valve, 33- blowdown valve, 34- sealing ring, 35- low pressure gasholder, 36- grouting port.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples, and the embodiments of the present invention includes
But it is not limited to the following example.
Embodiment
As shown in Figures 1 to 5, a kind of shield machine grouting device is present embodiments provided, mainly solves to infuse in the prior art
Slurry be easy blocking the problem of, it should be noted that " first " described in the present embodiment, " second ", " third " and " the 4th " only
For distinguishing same item, the specific restriction to protection scope cannot be understood as.Specifically, which includes
Several casting heads of shield machine lateral edge are arranged in annular, the Grouting Pipe 4 connecting with casting head, the note connecting with Grouting Pipe 4
Stock pump, the pulp injection tank connecting with grouting pump, the controller connecting with grouting pump, and the low-pressure air connecting with casting head promote
Device.
In this embodiment, the structure of all casting heads is all the same, and any casting head includes the first cavity 1, the second chamber
2, the second cavity 3, the first cavity 5, piston head 6, low-pressure air pipe 7, pressure sensor 8, safety valve 9, pressure release runner 10, relief hole
11, piston rod 12, fixed pedestal 13, thrust collar 14, first through hole 15, the second through-hole 16, third through-hole 17, the first cushion
18, the second cushion 19, third cushion 20 and grouting port 36.Wherein, the second cavity 2 is connect with Grouting Pipe 4, the second cavity 3
It is arranged in the second cavity 2, the first cavity 1 is connect using bolt with the second cavity 2, and the first cavity 5 is arranged in the first cavity 1
Interior, the inner wall sliding contact in the first cavity 5 and with first cavity 5 is arranged in piston head 6, and piston rod 12 is empty through first
Chamber 5 and the setting of the second cavity 2, one end connect with the connection of piston head 6 and the other end and the thrust collar 14 being arranged in the second cavity 3
It connects, the front end of the second cavity 2 is arranged in grouting port 36, and low-pressure air pipe 7 and pressure sensor 8 are separately positioned on the first cavity 1
It rear end and being connected to the first cavity 5, pressure release runner 10 is provided in piston head 6, relief hole 11 is provided on the first cavity 1,
And the piston head 6 is connected under low-pressure air progradation with the pressure release runner 10, fixed pedestal 13 and the first cavity 1 connect
It connects, the rear end of the first cavity 5 is arranged in the first cushion 18, and the front end of the first cavity 5 is arranged in the second cushion 19, and third is slow
The rear end that the second cavity 3 is arranged in pad 20 is rushed, safety valve 9 is arranged on the first cavity 1 and is connected to the first cavity 5, and first is logical
Hole 15 and the annular of third through-hole 17 are arranged on fixed pedestal 13, and 16 annular of the second through-hole be arranged on the second cavity 2 and
It is corresponding with 15 position of first through hole.It is contacted reliably to guarantee piston head with the first cavity, is arranged 6 in 6 lateral edge of piston head
The sealing ring 34 of group.
In addition, the low-pressure air propeller of the present embodiment includes the solenoid valve in three runbacks connecting with low-pressure air pipe 7
32, the low pressure gasholder 35 being connect using pipeline with solenoid valve 32, the low pressure air compressor group being connect with low pressure gasholder 35, connection
Normally opened ball valve 29, pressure reducing valve 30 and the 4th normally open valve 31 between low pressure gasholder 35 and solenoid valve 32, and stored up with low pressure
The pressure sensing cell that gas tank 35 connects.Specifically, low pressure air compressor group includes sequentially connected low pressure air compressor 21, non-return valve
22, safety relief valve 23 and the first normally open valve 24, wherein the outlet of first normally open valve 24 is connect with low pressure gasholder 35.
In addition, the pressure sensing cell includes the second normally open valve 25 and third normally open valve 27 connecting respectively with low pressure gasholder 35,
The pressure gauge 28 being connect with third normally open valve 27, and the pressure transmitter being connected between the second normally open valve 25 and controller
26.The normally opened ball valve 29 is connect with low pressure gasholder 35, and the 4th normally open valve 31 is connect with solenoid valve 32.It is low for convenience
35 periodical blowdown of air accumulator is pressed, is connected with a blowdown valve 33 in the bottom of low pressure gasholder 35.In the low pressure pneumatics of the present embodiment
Machine can be obtained by purchase, air filter be arranged in the air inlet of low pressure air compressor, and set in the output of low pressure air compressor
There is oil water separator, purpose still purifies air, reduces moisture and enters in low pressure gasholder.
In the present embodiment, solenoid valve 32, pressure sensor 8, pressure transmitter 26, contactor and PLC control chip are equal
Ad/da converter connection.Wherein, contactor is serially connected in the main power circuit of low pressure air compressor.Wherein, pressure transmitter is utilized
The pressure of 26 detection low pressure gasholders, as the pressure value low pressure 0.65MPa of low pressure gasholder, PLC controls chip triggering contact
Device is attracted, and is connected low pressure air compressor main power circuit, is suppressed by low pressure air compressor to low pressure gasholder, when in low pressure gasholder
Pressure reach 0.76MPa when, contactor disconnect, low pressure air compressor stopping suppress.As shown in figure 5, the AD/DA of LM3330 is converted
The simulation input of 3 4~20mA of tunnel of implement body, the simulation output of 2 4~20mA of tunnel.
Pressure sensor 8 in the present embodiment is used to detect the pressure of the first cavity, which can react indirectly
Pressure value when slip casting in the second cavity.Casting head is briefly described as follows under low-pressure air effect, action process:
Initial stage, solenoid valve 32 are in state in runback, i.e. the 4th normally open valve 31 is connect with the b of solenoid valve 32, low pressure
Air loop is in off state.Mud enters the second cavity 3 from Grouting Pipe 4, compresses thrust collar 14.
When there is the case where blocking in the second cavity 3, so that the pressure increase in the second cavity 3, further squeezes
Thrust collar 14, and if only if when the pressure value that pressure sensor 8 detects is more than or equal to propulsion operating pressure value, PLC controls chip
Drive magnetic valve 32 moves right, and so that solenoid valve 32 is obtained b and k and connects, and in turn, low-pressure air enters the first sky from low-pressure air pipe 7
Chamber 5 pushes piston head 6 to advance.When promote close in place when, pressure release runner 10 is connected to relief hole 11, meanwhile, solenoid valve 32 to
It moves left, the 4th normally open valve 31 is connect with the f of solenoid valve 32, and exhaust pipe is connected to by e, s with the first cavity, drains the first cavity
Interior low-pressure air.After the low-pressure air in the first cavity drains, in 32 runback of solenoid valve.It should be noted that in order to keep away
Exempt from solenoid valve 32 and relief hole 11 and injure equipment, construction personnel in exhaust, the position of exhaust is provided with decompression, preventing of blocking
Protection unit, the protective device can common decompression covers etc..
After the first cavity pressure release, piston head 6 is in the front end of the first cavity, in turn, is in casting head and initial rank
The identical state of section, to realize propulsion-involution-propulsion continuous process.In addition, the excessive damage of the first cavity pressure in order to prevent
Safety relief valve is dexterously arranged in casting head.And if only if the pressure in the first cavity is greater than the action value of safety relief valve
When, safety relief valve just acts.It is further to note that the utility model is structure-based improvement, it is not used for
Program improves, and the program that the utility model uses belongs to conventional fragment, and those skilled in the art is practical according to this
The content of novel record can be obtained using usability of program fragments calling, and it will not be described here.
Above-described embodiment is only the preferred embodiment of the utility model, is not intended to limit the scope of the present invention,
In every case the design principle of the utility model is used, and carries out the non-creative variation worked and made on this basis, it should all
Belong within the protection scope of the utility model.
Claims (10)
1. several casting heads of shield machine lateral edge are arranged in including annular for a kind of shield machine grouting device, connect with casting head
The Grouting Pipe (4) connect, the grouting pump being connect with Grouting Pipe (4), the pulp injection tank being connect with grouting pump, the control being connect with grouting pump
Device, which is characterized in that further include the low-pressure air propeller being connect with casting head；
Any casting head includes the second cavity (2) connecting with Grouting Pipe (4), second be arranged in the second cavity (2)
Cavity (3), the first cavity (1) being connect using bolt with the second cavity (2), the first cavity being arranged in the first cavity (1)
(5), the piston head (6) interior and with the inner wall sliding contact of first cavity (5) in the first cavity (5) is set, it is empty through first
The piston rod (12) that chamber (5) and the second cavity (2) setting and one end are connect with piston head (6), be arranged in the second cavity (3),
And the thrust collar (14) being connect with the other end of piston rod (12), the grouting port (36) in the front end of the second cavity (2) is set, point
Not She Zhi rear end in the first cavity (1) and the low-pressure air pipe (7) and pressure sensor (8) that are connected to the first cavity (5),
The pressure release runner (10) being provided in piston head (6), is provided on the first cavity (1) and the piston head (6) is pushed away in low-pressure air
It connect, into the lower relief hole (11) being connected to the pressure release runner (10) of effect, and with the first cavity (1) for being fixedly mounted
Fixed pedestal (13)；
The low-pressure air propeller includes the solenoid valve (32) in three runbacks connecting with low-pressure air pipe (7), using pipeline
The low pressure gasholder (35) being connect with solenoid valve (32), the low pressure air compressor group being connect with low pressure gasholder (35), and with it is low
Press the pressure sensing cell of air accumulator (35) connection；
The pressure sensing cell, low pressure air compressor group, solenoid valve (32) and pressure sensor (8) are connect with controller.
2. a kind of shield machine grouting device according to claim 1, which is characterized in that further include being arranged in the first cavity
(5) the second cushion (19) in the front end of the first cavity (5) is arranged in the first cushion (18) of rear end, and setting exists
The third cushion (20) of the rear end of second cavity (3).
3. a kind of shield machine grouting device according to claim 1, which is characterized in that further include being arranged in the first cavity
(1) safety valve (9) being connected on and with the first cavity (5).
4. a kind of shield machine grouting device according to claim 1, which is characterized in that further include annular setting in fixed base
First through hole (15) and third through-hole (17) on seat (13), and annular is arranged on the second cavity (2) and and first through hole
(15) corresponding second through-hole (16) in position.
5. a kind of shield machine grouting device according to any one of claims 1 to 4, which is characterized in that the low pressure pneumatics
Unit includes sequentially connected low pressure air compressor (21), non-return valve (22), safety relief valve (23) and the first normally open valve (24)；Institute
The outlet for stating the first normally open valve (24) is connect with low pressure gasholder (35).
6. a kind of shield machine grouting device according to claim 5, which is characterized in that the pressure sensing cell includes point
The second normally open valve (25) and third normally open valve (27) not connecting with low pressure gasholder (35), connect with third normally open valve (27)
Pressure gauge (28), and the pressure transmitter (26) being connected between the second normally open valve (25) and controller.
7. a kind of shield machine grouting device according to claim 6, which is characterized in that further include being connected to low pressure gasholder
(35) the normally opened ball valve (29) between solenoid valve (32), pressure reducing valve (30) and the 4th normally open valve (31)；The normally opened ball valve
(29) it is connect with low pressure gasholder (35), and the 4th normally open valve (31) is connect with solenoid valve (32).
8. a kind of shield machine grouting device according to claim 5, which is characterized in that further include being stored up using pipeline and low pressure
The blowdown valve (33) of the bottom connection of gas tank (35).
9. a kind of shield machine grouting device according to claim 7, which is characterized in that the controller includes becoming with pressure
The ad/da converter for sending device (26) and pressure sensor (8) to connect, and the contactor that is connect respectively with ad/da converter and
PLC controls chip；The solenoid valve (32) connect with ad/da converter, and the contactor is connect with low pressure air compressor (21).
10. a kind of shield machine grouting device according to any one of claims 1 to 4, which is characterized in that further include that setting exists
Piston head (6) lateral edge and at least configure two groups of sealing ring (34).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820881632.7U CN208310803U (en) | 2018-06-08 | 2018-06-08 | A kind of shield machine grouting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820881632.7U CN208310803U (en) | 2018-06-08 | 2018-06-08 | A kind of shield machine grouting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208310803U true CN208310803U (en) | 2019-01-01 |
Family
ID=64710758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820881632.7U Expired - Fee Related CN208310803U (en) | 2018-06-08 | 2018-06-08 | A kind of shield machine grouting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208310803U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111894629A (en) * | 2020-06-12 | 2020-11-06 | 武汉船用机械有限责任公司 | Shield constructs quick-witted slip casting jar and shield constructs machine |
| CN113217037A (en) * | 2021-06-25 | 2021-08-06 | 中铁二局集团有限公司 | Backfill system and backfill method for single shield TBM or behind shield segment wall |
-
2018
- 2018-06-08 CN CN201820881632.7U patent/CN208310803U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111894629A (en) * | 2020-06-12 | 2020-11-06 | 武汉船用机械有限责任公司 | Shield constructs quick-witted slip casting jar and shield constructs machine |
| CN113217037A (en) * | 2021-06-25 | 2021-08-06 | 中铁二局集团有限公司 | Backfill system and backfill method for single shield TBM or behind shield segment wall |
| CN113217037B (en) * | 2021-06-25 | 2022-08-30 | 中铁二局集团有限公司 | Backfill system and backfill method for single shield TBM or behind shield segment wall |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101294500B (en) | Heavy pressure slip-casting hole-sealing method for large-diameter extraction borehole | |
| CN208310803U (en) | A kind of shield machine grouting device | |
| CN102182468B (en) | Method and device for solidifying water-filling cracking surrounding rocks of tunnel by adopting high-pressure air water-dispelling grouting | |
| CN201874614U (en) | Drainage structure for emptying overhaul of derivation tunnel | |
| CN214836257U (en) | Extraction drilling hole failure hole sealing processing apparatus | |
| CN215292577U (en) | Air pulse circulation power effect anti-reflection device for dredging | |
| CN203742542U (en) | Non-pipe grouting hole sealing device | |
| CN201687507U (en) | Hydrostatic coal wall water injection hole packer | |
| CN203584445U (en) | Staged controllable anchor rod grouting support surrounding rock consolidation integrated system | |
| CN212202370U (en) | Mechanical reversing mechanism of hydraulic grouting pump | |
| CN212479238U (en) | Shield machine | |
| CN210218013U (en) | Hydraulic double-liquid grouting pump | |
| CN210714516U (en) | Combined type drilling rod | |
| CN203412625U (en) | Underground coal mine drainage facility | |
| CN203335020U (en) | Pressure bearing type grouting hole packer with pulp returning prevention device | |
| CN202325674U (en) | Automatic slag and water discharging device | |
| CN112281884A (en) | Well point dewatering device and operation method thereof | |
| CN201687506U (en) | Mechanical coal-face flooding hole sealing device | |
| CN204023644U (en) | Loading arm hydraulic system for lifting | |
| CN111456806A (en) | A cup joint formula underground conveyor for tailing lotion fills | |
| CN204493315U (en) | There is the Emulation Concentration in Coal Mine movable pump station of overflow-proof function | |
| CN2520353Y (en) | Air exhaust structure of spiral drilling rod for press pouring concrete | |
| CN216446897U (en) | Dynamic and static pressure combined water injection system for coal seam water injection | |
| CN105858228B (en) | A kind of method of the two-tube hydraulic hoisting ore of deep-well | |
| CN103741703A (en) | Water-filling type siphon drainage device applicable to radioactive well |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190101 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |