CN106065781A - A kind of gas drainage under suction injection hole sealing device and method for sealing - Google Patents

A kind of gas drainage under suction injection hole sealing device and method for sealing Download PDF

Info

Publication number
CN106065781A
CN106065781A CN201610486675.0A CN201610486675A CN106065781A CN 106065781 A CN106065781 A CN 106065781A CN 201610486675 A CN201610486675 A CN 201610486675A CN 106065781 A CN106065781 A CN 106065781A
Authority
CN
China
Prior art keywords
cylinder
sealing
injection hole
under suction
hole
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.)
Granted
Application number
CN201610486675.0A
Other languages
Chinese (zh)
Other versions
CN106065781B (en
Inventor
杨汉斌
罗书明
王凯
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GUIZHOU PANJIANG MINING MACHIENRY CO Ltd
Original Assignee
GUIZHOU PANJIANG MINING MACHIENRY CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by GUIZHOU PANJIANG MINING MACHIENRY CO Ltd filed Critical GUIZHOU PANJIANG MINING MACHIENRY CO Ltd
Priority to CN201610486675.0A priority Critical patent/CN106065781B/en
Publication of CN106065781A publication Critical patent/CN106065781A/en
Application granted granted Critical
Publication of CN106065781B publication Critical patent/CN106065781B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21FSAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F7/00Methods or devices for drawing- off gases with or without subsequent use of the gas for any purpose
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28CPREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/08Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
    • B28C5/10Mixing in containers not actuated to effect the mixing
    • B28C5/12Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers
    • B28C5/16Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers the stirrers having motion about a vertical or steeply inclined axis
    • 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
    • E21B33/00Sealing or packing boreholes or wells
    • E21B33/10Sealing or packing boreholes or wells in the borehole
    • E21B33/13Methods or devices for cementing, for plugging holes, crevices, or the like

Abstract

The invention discloses a kind of gas drainage under suction injection hole sealing device and method for sealing, including agitator and grouting cylinder, described agitator discharging opening is connected to grouting cylinder charging aperture by pipeline, and described grouting cylinder connects driving oil cylinder, and its outlet is connected to injected hole by pipeline.The present invention is mixed cement mortar by agitator, by grouting cylinder, cement mortar is injected at sealing of hole, realize the sealing of hole at gas exhaust, substantially increase injection hole sealing efficiency, operator greatly reduce, and labor intensity is low, more time saving and energy saving, injection hole sealing is safer, the feature that the present invention also has simple in construction, low cost, easy to maintenance quick and maintenance cost are substantially reduced.

Description

A kind of gas drainage under suction injection hole sealing device and method for sealing
Technical field
The present invention relates to a kind of gas drainage under suction injection hole sealing device and method for sealing, belong to gas drainage hole sealing device technology Field.
Background technology
For in mash gas pumping drilling stringing work progress, need to be to the hole between gas drainage pipe outer wall and drilling inwall Gap, carries out injection hole sealing construction in the certain limit in from exit to drilling, when existing equipment carries out slip casting, need Operator many, labor intensity is big, wastes time and energy, and sealing of hole efficiency is low, and injection hole sealing safety is worse.
Summary of the invention
The technical problem to be solved in the present invention is: provide a kind of gas drainage under suction injection hole sealing device and method for sealing, slip casting Sealing of hole efficiency is high, and operator greatly reduce, and labor intensity is low, more time saving and energy saving, and injection hole sealing is safer, existing to solve There is problem present in technology.
The technical scheme that the present invention takes is: a kind of gas drainage under suction injection hole sealing device, including agitator and grouting cylinder, institute Stating agitator discharging opening and be connected to grouting cylinder charging aperture by pipeline, described grouting cylinder connects driving oil cylinder, and its outlet is passed through Pipeline is connected to injected hole.
Preferably, above-mentioned agitator includes staving and the stirrer blade being placed in staving, and described stirrer blade is by rotary shaft even Receiving on hydraulic motor, described hydraulic motor is arranged on axle bed, and described upper axle bed is fixedly connected in the middle part of gripper shoe, described Gripper shoe two ends are fixedly mounted on staving top, and ensure that hydraulic motor is positioned at above staving center, and are provided with charging aperture.
Preferably, above-mentioned stirrer blade includes paddle and the connection strap of spiral, and described paddle is the cylinder including upper end Cone segments under section and cylindrical section, is connected to rotary shaft by a plurality of evenly spaced connection strap.
Preferably, above-mentioned rotary shaft upper end is separably connected to the motor axle sleeve rotated, and lower end can be revolved by lower spindle nose Turning ground to be connected on lower axle bed, described motor axle sleeve passes through to be bonded to receive hydraulic motor) output shaft, and be rotatably inserted into In upper axle bed.
Preferably, it is provided with drainage screen at above-mentioned charging aperture.
Preferably, above-mentioned staving two lateral wall is provided with the handrail of symmetry.
Preferably, it is provided with copper sheathing between said motor axle sleeve and upper axle bed and between lower spindle nose and lower axle bed.
Preferably, above-mentioned grouting cylinder includes that cylinder body and piston, described piston are placed in cylinder body, and are directly connected to hydraulic cylinder Lever, described cylinder body two ends are both provided with charging aperture and discharging opening, charging aperture are arranged at alternately check valve, discharging opening sets The cylinder barrel being equipped with back liquid short valve, cylinder body and hydraulic cylinder is fixedly connected in support platform.
Preferably, above-mentioned support platform includes base plate and is fixedly connected on the side plate of side before and after base plate, fixing between biside plate sets Being equipped with the polylith gripper shoe of perpendicular side plate, its left end is provided with the ears seat connecting hydraulic cylinder, and its right-hand member is provided with connection cylinder body Flange, be arc groove in the middle part of described polylith gripper shoe.
Preferably, above-mentioned gripper shoe is also associated with press cylinder body and the pressing plate of cylinder barrel.
A kind of method for sealing of gas drainage under suction injection hole sealing device, the method comprises the following steps:
(1) the gas exhaust pipe at sealing of hole is placed in the middle of hole, is noted by Ma Lisan injection device away from sealing of hole mouth 15m in hole Enter the thick Ma Lisan layer of 0.5-1m;
(2) it is that the cement of 1:1:0.5, sandstone and water join in agitator by ratio, is mixed cement mortar by agitator, water Cement mortar granularity is not more than 20mm;
(3) to be mixed uniformly after, start pumping plant and hydraulic cylinder carried out two-way operation, drive the work of grouting cylinder two-stroke back and forth;
(4) by the two-way slip casting of grouting cylinder, cement mortar is injected in sealing of hole;
(5) cement mortar in sealing of hole is when sealing of hole mouth 1m, stops slip casting;
(6) after 30 minutes, Ma Lisan layer thick for 1m is injected at sealing of hole mouth.
Beneficial effects of the present invention: compared with prior art, the effect of the present invention is as follows:
(1) present invention is mixed cement mortar by agitator, is injected at sealing of hole by grouting cylinder by cement mortar, it is achieved gas Sealing of hole at pump drainage, substantially increases injection hole sealing efficiency, and operator greatly reduce, and labor intensity is low, more time saving and energy saving, Injection hole sealing is safer, and the present invention also has simple in construction, low cost, easy to maintenance quick and maintenance cost are substantially reduced Feature;
(2) being stirred by fluid motor-driven stirrer blade, it is more time saving and energy saving to stir, and stirring efficiency is greatly improved, work Efficiency is also greatly improved, and stirring is more uniform, and sealing of hole effect is more preferable;
(3) moved back and forth in cylinder body by Driven by Hydraulic Cylinder piston, cylinder body uses both-end charging and discharging, it is achieved round trip Work, substantially increases slip casting efficiency, uses check valve to realize automatic shutter, simple to operate, more time saving and energy saving, also reduces envelope Hole personnel and labor strength, improve efficiency 3-6 times;
(4) present invention uses the hole sealing structure of two Ma Lisan layer pincer attack cement sand bed, sealing of hole effect can be allowed more preferable, sealing of hole cost Lower.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention;
Fig. 2 is the overall structure schematic diagram of the present invention;
Fig. 3 is the agitator structural representation of the present invention;
Fig. 4 is the agitator plan structure schematic diagram of the present invention;
Fig. 5 is the close-up schematic view A in Fig. 3;
Fig. 6 be in Fig. 3 structure of shaft sleeve of motor schematic diagram;
Fig. 7 is the plan structure schematic diagram in Fig. 6;
Fig. 8 is the upper shaft head structure schematic diagram in Fig. 3;
Fig. 9 is the plan structure schematic diagram in Fig. 6;
Figure 10 is the grouting cylinder structural representation of the present invention;
Figure 11 is the pressing plate side-looking structural representation in Figure 10.
Detailed description of the invention
Below in conjunction with the accompanying drawings and the present invention is described further by specific embodiment.
Embodiment 1: as Figure 1-Figure 11, a kind of gas drainage under suction injection hole sealing device, including agitator 1 and grouting cylinder 2, Agitator 1 discharging opening is connected to grouting cylinder 2 charging aperture by pipeline, and grouting cylinder 2 connects driving oil cylinder 3, and its outlet is by pipe Road is connected to injected hole 4, drives oil cylinder 3 to be connected to pumping plant 5.
Preferably, above-mentioned agitator 1 includes staving 1 and the stirrer blade 102 being placed in staving 101, and stirrer blade 102 is by sky The rotary shaft 103 of the heart is connected on hydraulic motor 104, and hydraulic motor 104 is arranged on axle bed 105, and upper axle bed 105 is fixing even Being connected in the middle part of gripper shoe 106, gripper shoe 106 two ends are fixedly mounted on the ring flange 120 on staving 101 top, and ensure hydraulic pressure Motor 104 is positioned at above staving 101 center, and is provided with charging aperture 110, and hydraulic motor 104 is connected to pumping plant 5, discharging opening 117 are arranged on staving 101 bottom, and ring flange 120 is provided with reinforcement 121.
Preferably, above-mentioned stirrer blade 106 includes that paddle 107 and the connection strap 108 of spiral, described paddle 107 are bag Include the cone segments under the cylindrical section of upper end and cylindrical section, be connected to rotary shaft 103 by a plurality of evenly spaced connection strap 108, Staving 101 lower end is arranged to pyramidal structure, and the pitch of the paddle 107 of spiral is 300mm, and thickness of slab is 4-6mm, and cylindrical section stirs The spiral external diameter of leaf 107 is 570mm, and internal diameter is 480mm, and the short spiral internal diameter of conical section is identical with cylindrical section, outside small end spiral Footpath is 240mm, and internal diameter is 150mm, axially extending be about 1/2nd pitch, connection strap 108 use thickness be 4-6mm thick, Width is that the steel plate of 45mm makes, and the axially spaced-apart of a plurality of connection strap 108 is 75mm, and spiral circumference is uniformly distributed.
Preferably, above-mentioned rotary shaft 103 upper end is separably connected to the motor axle sleeve 109 rotated by upper spindle nose 122, Lower end is rotatably connected on lower axle bed 112 by lower spindle nose 111, and motor axle sleeve 109 is connected to hydraulic motor by key 113 The output shaft of 104, and be rotatably inserted in axle bed 105, upper spindle nose 22 upper surface is provided with two arranged around its axle center Symmetrical sector is protruding and arranges two sector notch between two fan-shaped projections, and it is right that motor axle sleeve 112 lower end is provided with two too The sector claimed is protruding and arranges two sector notch between two fan-shaped projections, fan-shaped protruding and sector notch and the motor drive shaft of upper spindle nose The sector notch of set 112 and sector projection are inlayed and are realized detachably connectable, also can arrange location in upper spindle nose 122 upper center Axle, fast and easy location and installation.
Preferably, it is provided with drainage screen 114 at above-mentioned charging aperture 110, oversized particles can be filtered by drainage screen, keep away Exempt from the blocking of pipeline.
Preferably, 101 liang of lateral walls of above-mentioned staving are provided with the handrail 115 of symmetry, convenient by agitator by handrail Carrying out carrying and moving, staving 101 is arranged with the supporting leg 118 that four angle steel make, and four supporting legs 118 pass through reinforcing ring Connecting, supporting leg 118 bottom is provided with gripper shoe, improves Area of bearing, it is ensured that stability of strutting system.
Preferably, it is provided with copper sheathing between said motor axle sleeve 109 and upper axle bed 105 and between lower spindle nose 111 and lower axle bed 112 116, copper sheathing has wear-resisting characteristic, it is possible to increase the service life of equipment.
Preferably, above-mentioned grouting cylinder 2 includes cylinder body 201 and piston 202, and piston 202 is placed in cylinder body 201, and directly connects Receiving the lever 205 of hydraulic cylinder 204, cylinder body 201 two ends are both provided with charging aperture 206 and discharging opening 207, charging aperture 206 set It is placed in alternately check valve 208, discharging opening 207 is provided with back liquid short valve 209, the cylinder barrel 210 of cylinder body 201 and hydraulic cylinder 204 It is fixedly connected in support platform 211.
Preferably, above-mentioned support platform 211 includes base plate 212 and is fixedly connected on the side plate 213 of base plate 212 side front and back, two Being fixedly installed the polylith gripper shoe 214 of perpendicular side plate 213 between side plate 213, its left end is provided with the ears connecting hydraulic cylinder 204 Seat 215, its right-hand member is provided with the flange 216 connecting cylinder body 201, and support table structure is simple, easy to make, low cost, ears seat Reliable with Flange joint, it is arc groove in the middle part of polylith gripper shoe 214, by enough in arc groove, cylinder body and cylinder barrel is limited Position, connects placement more reliable and more firm.
Preferably, above-mentioned gripper shoe 214 is also associated with press cylinder body 201 and the pressing plate 217 of cylinder barrel 210, passes through pressing plate Cylinder body and cylinder barrel can be added and be affixed to support on platform, use more firm.
Embodiment 2: the method for sealing of a kind of gas drainage under suction injection hole sealing device, the method comprises the following steps:
(1) the gas exhaust pipe at sealing of hole is placed in the middle of hole, is noted by Ma Lisan injection device away from sealing of hole mouth 15m in hole Enter the thick Ma Lisan layer of 0.5-1m;
(2) it is that the cement of 1:1:0.5, sandstone and water join in agitator by ratio, is mixed cement mortar by agitator, water Cement mortar granularity is not more than 20mm;
(3) to be mixed uniformly after, start pumping plant and hydraulic cylinder carried out two-way operation, thus drive grouting cylinder two-stroke work back and forth Make;
(4) by the two-way slip casting of grouting cylinder, cement mortar is injected in sealing of hole;
(5) cement mortar in sealing of hole is when sealing of hole mouth 1m, stops slip casting;
(6) after 30 minutes, Ma Lisan layer thick for 1m is injected at sealing of hole mouth.
The above, the only detailed description of the invention of the present invention, but protection scope of the present invention is not limited thereto, and any Those familiar with the art, in the technical scope that the invention discloses, can readily occur in change or replace, should contain Covering within protection scope of the present invention, therefore, protection scope of the present invention should be as the criterion with described scope of the claims.

Claims (10)

1. a gas drainage under suction injection hole sealing device, it is characterised in that: include agitator (1) and grouting cylinder (2), described agitator (1) discharging opening is connected to grouting cylinder (2) charging aperture by pipeline, and described grouting cylinder (2) connects driving oil cylinder (3), its outlet It is connected to injected hole (4) by pipeline.
A kind of gas drainage under suction injection hole sealing device the most according to claim 1, it is characterised in that: described agitator (1) wraps Including staving (1) and the stirrer blade (102) being placed in staving (101), described stirrer blade (102) is connected to by rotary shaft (103) On hydraulic motor (104), described hydraulic motor (104) is arranged on axle bed (105), and described upper axle bed (105) is fixing to be connected At gripper shoe (106) middle part, described gripper shoe (106) two ends are fixedly mounted on staving (101) top, and ensure hydraulic motor (104) it is positioned at above staving (101) center, and is provided with charging aperture (110).
A kind of gas drainage under suction injection hole sealing device the most according to claim 2, it is characterised in that: described stirrer blade (206) Including paddle (107) and the connection strap (108) of spiral, described paddle (107) is cylindrical section and the cylindrical section including upper end Under cone segments, be connected to rotary shaft (103) by a plurality of evenly spaced connection strap (108).
A kind of gas drainage under suction injection hole sealing device the most according to claim 2, it is characterised in that: described rotary shaft (103) Upper end is separably connected to the motor axle sleeve (109) rotated, and lower end is rotatably connected to lower axle bed by lower spindle nose (111) (112), on, described motor axle sleeve (109) is connected to the output shaft of hydraulic motor (104) by key (113), and the most embedding Enter in upper axle bed (105).
A kind of gas drainage under suction injection hole sealing device the most according to claim 2, it is characterised in that: described charging aperture (110) Place is provided with drainage screen (114).
A kind of gas drainage under suction injection hole sealing device the most according to claim 4, it is characterised in that: described motor axle sleeve And between upper axle bed (105) and between lower spindle nose (111) and lower axle bed (112), be provided with copper sheathing (116) (109).
A kind of gas drainage under suction injection hole sealing device the most according to claim 1, it is characterised in that: described grouting cylinder (2) wraps Including cylinder body (201) and piston (202), described piston (202) is placed in cylinder body (201), and is directly connected to hydraulic cylinder (204) Lever (205), described cylinder body (201) two ends are both provided with charging aperture (206) and discharging opening (207), and charging aperture (206) is upper to be arranged Liquid short valve (209), cylinder body (201) and hydraulic cylinder (204) it is provided with back on alternately check valve (208), discharging opening (207) Cylinder barrel (210) is fixedly connected in support platform (211).
A kind of gas drainage under suction injection hole sealing device the most according to claim 7, it is characterised in that: described support platform (211) Including base plate (212) be fixedly connected on the side plate (213) of side before and after base plate (212), it is fixedly installed vertical between biside plate (213) The polylith gripper shoe (214) of front plate (213), its left end is provided with the ears seat (215) connecting hydraulic cylinder (204), its right-hand member Being provided with the flange (216) connecting cylinder body (201), described polylith gripper shoe (214) middle part is arc groove.
A kind of gas drainage under suction injection hole sealing device the most according to claim 8, it is characterised in that: described gripper shoe (214) On be also associated with pressing cylinder body (201) and the pressing plate (217) of cylinder barrel (210).
10., according to the method for sealing of the arbitrary described a kind of gas drainage under suction injection hole sealing device of claim 1-9, its feature exists In: the method comprises the following steps:
(1) the gas exhaust pipe at sealing of hole is placed in the middle of hole, is noted by Ma Lisan injection device away from sealing of hole mouth 15m in hole Enter the thick Ma Lisan layer of 0.5-1m;
(2) it is that the cement of 1:1:0.5, sandstone and water join in agitator by ratio, is mixed cement mortar by agitator, water Cement mortar granularity is not more than 20mm;
(3) to be mixed uniformly after, start pumping plant and hydraulic cylinder carried out two-way operation, drive the work of grouting cylinder two-stroke back and forth;
(4) by the two-way slip casting of grouting cylinder, cement mortar is injected in sealing of hole;
(5) cement mortar in sealing of hole is when sealing of hole mouth 1m, stops slip casting;
(6) after 30 minutes, Ma Lisan layer thick for 1m is injected at sealing of hole mouth.
CN201610486675.0A 2016-06-29 2016-06-29 A kind of gas drainage under suction injection hole sealing device and method for sealing Active CN106065781B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610486675.0A CN106065781B (en) 2016-06-29 2016-06-29 A kind of gas drainage under suction injection hole sealing device and method for sealing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610486675.0A CN106065781B (en) 2016-06-29 2016-06-29 A kind of gas drainage under suction injection hole sealing device and method for sealing

Publications (2)

Publication Number Publication Date
CN106065781A true CN106065781A (en) 2016-11-02
CN106065781B CN106065781B (en) 2018-03-02

Family

ID=57421556

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610486675.0A Active CN106065781B (en) 2016-06-29 2016-06-29 A kind of gas drainage under suction injection hole sealing device and method for sealing

Country Status (1)

Country Link
CN (1) CN106065781B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109162667A (en) * 2018-10-11 2019-01-08 吕梁学院 Coal mining two-liquid grouting device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2224864Y (en) * 1995-01-31 1996-04-17 陆信惠 High pressure cement pump
CN202805411U (en) * 2012-07-30 2013-03-20 浙江省宏途交通建设有限公司 Automatic mud-jack all-in-one machine of prestressed aperture
CN203331228U (en) * 2013-06-13 2013-12-11 新疆科立机械设备有限公司 Powdery material homogenizing device
CN205047217U (en) * 2015-08-12 2016-02-24 郑力会 Simulation annular space flow state's leaking stoppage experimental apparatus
CN205936690U (en) * 2016-06-29 2017-02-08 贵州盘江矿山机械有限公司 Gas drainage under suction slip casting hole sealing device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2224864Y (en) * 1995-01-31 1996-04-17 陆信惠 High pressure cement pump
CN202805411U (en) * 2012-07-30 2013-03-20 浙江省宏途交通建设有限公司 Automatic mud-jack all-in-one machine of prestressed aperture
CN203331228U (en) * 2013-06-13 2013-12-11 新疆科立机械设备有限公司 Powdery material homogenizing device
CN205047217U (en) * 2015-08-12 2016-02-24 郑力会 Simulation annular space flow state's leaking stoppage experimental apparatus
CN205936690U (en) * 2016-06-29 2017-02-08 贵州盘江矿山机械有限公司 Gas drainage under suction slip casting hole sealing device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
孙朝芦: "穿层瓦斯抽采钻孔封孔材料优化研究", 《煤炭技术》 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109162667A (en) * 2018-10-11 2019-01-08 吕梁学院 Coal mining two-liquid grouting device
CN109162667B (en) * 2018-10-11 2020-07-28 吕梁学院 Coal mining double-liquid grouting device

Also Published As

Publication number Publication date
CN106065781B (en) 2018-03-02

Similar Documents

Publication Publication Date Title
CN106738309A (en) A kind of building site concrete-agitating robot
CN105155511A (en) Rotating drum type swirl curing and stirring device and dredged sludge hydraulic reclamation method
CN1686914A (en) Subsequent backfilled pea gravel concrete for lining back of tunnels and backfilling method
CN205936690U (en) Gas drainage under suction slip casting hole sealing device
CN210151742U (en) High-pressure grouting machine
CN106065781A (en) A kind of gas drainage under suction injection hole sealing device and method for sealing
CN212866986U (en) Integral type grout equipment
CN205477667U (en) Over -and -under type patching machine
CN208380100U (en) A kind of high pressure cement grout device
CN210025781U (en) All-round concrete unloading pipe device
CN109624075B (en) Portable all-round concrete unloading pipe device
CN110344402A (en) The construction method of curing agent processing stake holes sky pile cutoff mud
CN202412454U (en) Cement jet type two-level mixing device for well cementation
CN215589549U (en) Building construction is plastered wall and is used cement mixing device
CN210482277U (en) Rotary grouting reinforcement device
CN207072028U (en) Small-sized mixing station with enhanced feature
CN105275771B (en) Epoxy resin grouting pump
CN205343452U (en) Mud agitating unit
CN210194601U (en) Long spiral cast-in-place pile reinforcement cage with rotating fan blade rear grouting device
CN205766860U (en) A kind of injection hole sealing blender
CN206706767U (en) Bentonite slurry agitating device
CN216543946U (en) Water conservancy construction concrete mixing ware
CN212001110U (en) Hydraulic engineering uses high-efficient cementer
CN112144519A (en) Drilling tool, cement-soil stirring pile sinking all-in-one machine and construction method of composite pile
CN216275689U (en) Compound soil nail wall is strutted and is used slip casting mechanism

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant