CN105065034B - A kind of full hydraulic concrete spraying unit and its method of work - Google Patents
A kind of full hydraulic concrete spraying unit and its method of work Download PDFInfo
- Publication number
- CN105065034B CN105065034B CN201510455729.2A CN201510455729A CN105065034B CN 105065034 B CN105065034 B CN 105065034B CN 201510455729 A CN201510455729 A CN 201510455729A CN 105065034 B CN105065034 B CN 105065034B
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- Prior art keywords
- pulper
- cement mortar
- sandstone
- storage bin
- hydraulic
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- 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
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- 238000005507 spraying Methods 0.000 title claims abstract description 38
- 239000011083 cement mortar Substances 0.000 claims abstract description 51
- 230000001808 coupling Effects 0.000 claims abstract description 35
- 238000010168 coupling process Methods 0.000 claims abstract description 35
- 238000005859 coupling reaction Methods 0.000 claims abstract description 35
- 239000004568 cement Substances 0.000 claims abstract description 6
- 238000002156 mixing Methods 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 239000000843 powder Substances 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 6
- 239000002828 fuel tank Substances 0.000 claims description 3
- 239000010720 hydraulic oil Substances 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims description 2
- 239000004575 stone Substances 0.000 claims description 2
- 210000003128 Head Anatomy 0.000 claims 1
- 229920002472 Starch Polymers 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 235000019698 starch Nutrition 0.000 claims 1
- 239000000428 dust Substances 0.000 abstract description 5
- 239000002245 particle Substances 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 238000002360 preparation method Methods 0.000 abstract description 2
- 238000005086 pumping Methods 0.000 abstract description 2
- 239000012530 fluid Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 6
- 239000007788 liquid Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006011 modification reaction Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000004642 transportation engineering Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 238000010410 dusting Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 230000001105 regulatory Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
The invention discloses a kind of full hydraulic concrete spraying unit and its method of works, mainly it is made of pulper, storage bin, hydraulic cylinder, screw pump, rotor spraying machine, vehicle frame, by fluid motor-driven, pulper is connected with storage bin by hydraulic cylinder for pulper, storage bin, rotor spraying machine.Storage bin receives the cement mortar of pulper preparation by the expanding-contracting action of hydraulic cylinder, and pass through screw pump and cement slurrypump is sent near wet shot working face, the siccatives such as sandstone are transported near wet shot working face by rotor spraying machine simultaneously, and the siccatives such as cement mortar and sandstone are converged by tee pipe coupling and are sprayed onto wet shot working face by nozzle.Pumping technology is combined by the present invention with Geldart-D particle spraying technique, and use full hydraulic system drive control, have many advantages, such as that compact-sized, control is convenient, transfer efficiency is high, be not easy plugging, Dust Capacity it is small.
Description
Technical field
The present invention relates to roadway support, colliery delay filling, highways the working concrete spraying unit in fields such as to build,
A kind of full hydraulic concrete spraying unit.
Background technology
The siccatives such as cement, sandstone are mixed in a certain ratio rear Geldart-D particle to nozzle by existing dry method shotcreting machine,
Water is added to be sprayed onto working face after carrying out humidifying processing to siccative at nozzle, amount of water number by nozzle valve regulated, this makes
The problem being difficult to control into the ratio of mud, and dry spray effect is poor, Dust Capacity is big, rebound degree is high, and environment is being caused seriously to pollute
While waste substantial amounts of coagulation soil resource.Largely Shangdi is overcome existing for dry spraying machine for the appearance of concrete spraying machine
Prepared wet stock is transported at nozzle and sprays by shortcoming, and Dust Capacity is few, rebound degree is low, but it is when conveying wet stock
More power need to be expended, and wet stock easily causes plugging phenomenon, necessary timely detergent line after each wet shot end of job, together
When wet-spraying machine using expensive liquid accelerating agent, add construction cost.
The content of the invention
Goal of the invention：In order to overcome the deficiencies in the prior art, it is wet that the present invention provides a kind of full hydraulic concrete
Spraying machine group and its method of work, possess that compact-sized, control is convenient, transfer efficiency is high, is not easy plugging, the advantages that Dust Capacity is small.
Technical solution：To achieve the above object, the technical solution adopted by the present invention is：
A kind of full hydraulic concrete spraying unit, including pulper, storage bin, rotor spraying machine, screw pump and three
Connection for bbreather pipe, the pulper are connected with storage bin feed, and the storage bin is connected with screw pump feed, the water of the screw pump
Mud discharge port and the cement mortar feeding mouth of tee pipe coupling connect, the sandstone siccative discharge port of the rotor spraying machine and three
The sandstone siccative feeding mouth connection of connection for bbreather pipe, the concrete discharge port of the tee pipe coupling are connected with nozzle.
Further, the pulper includes agitating shaft one, atomizing dust-removing system, axis pin one and axis pin two, the stirring
Axis one is arranged in pulper, and is driven by hydraulic motor one, and the atomizing dust-removing system is arranged on the top of agitating shaft one；Institute
It states pulper to be hinged with vehicle frame by axis pin one, the pulper is connected by axis pin two with Driven by Hydraulic Cylinder, the hydraulic cylinder
Do elongation action, driving pulper topples over cement mortar to storage bin around axis pin one, and hydraulic cylinder does retract action, driving pulper around
Axis pin one recovers initial position.
Further, the storage bin includes agitating shaft two, and the agitating shaft two is driven by hydraulic motor two；The rotor
Formula spraying machine is driven by hydraulic motor three.
Further, the hydraulic motor one, hydraulic motor two, hydraulic cylinder and hydraulic motor three are by motor-driven three
Join pump group part and power is provided, provide hydraulic oil by fuel tank, action command is provided by hydraulic valve bank.
Further, the tee pipe coupling exit is provided with thread mixing blade, and the thread mixing blade is three
Span is 2 times of screw pitch inside connection for bbreather pipe, and material is transmitted under the rotation of thread mixing blade with screw after mixing
To nozzle.
Further, the cement mortar feeding mouth of the tee pipe coupling connection and the internal diameter ratio of sandstone siccative feeding mouth are 3:
5, and the axis angle between cement mortar feeding mouth and sandstone siccative feeding mouth is 40-60 degree.
Further, the nozzle front end is provided with auxiliary air intake device, and the auxiliary air intake device is by several air inlets
Pipe forms, and every air inlet pipe and pipeline at this be axial, tangential angle is around setting, and every air inlet pipe is connected with air pump supply.
Further, the cement mortar discharge port is connected with cement mortar feeding mouth by small hose, and the sandstone siccative goes out
Material mouth is connected with sandstone siccative feeding mouth by thick flexible pipe.
A kind of method of work of full hydraulic concrete spraying unit：
Step 1：Start motor, motor driving treble pump component is pulper, storage bin, rotor spraying machine provide it is dynamic
Power makes it into working condition；
Step 2：Concrete grey and water are poured into pulper, hydraulic motor one drives agitating shaft one to rotate, by concrete grey with
Water, which stirs evenly, is made cement mortar, and manipulation hydraulic valve bank makes the movable cylinder of hydraulic cylinder push axis pin two to move, and pulper is in hydraulic pressure
It is overturn under the impetus of cylinder around axis pin one toward storage bin direction, the cement mortar prepared is poured into storage bin；
Step 3：Storage bin stores the cement mortar from pulper, and is uniformly sent into cement mortar by the flow set
Screw pump, therebetween agitating shaft two hydraulic motor two driving under persistently cement mortar is stirred to prevent its solidification；
Step 4：Cement mortar is pumped to what tee pipe coupling near working face connected by screw pump by cement mortar discharge port
Cement mortar feeding mouth, while rotor spraying machine is defeated by sandstone siccative discharge port by sandstone siccative under the driving of hydraulic motor three
Send the sandstone siccative feeding mouth connected to tee pipe coupling, tee pipe coupling is by cement mortar and sandstone siccative short distance after mixing
From being delivered to nozzle and being ejected into wet shot working face, the sandstone siccative includes sandstone and accelerator powder..
Further, the screw pump and rotor spraying machine are respectively defeated over long distances to the conveying between tee pipe coupling
It send, the tee pipe coupling to the conveying between nozzle conveys for short distance.
Advantageous effect：Compared with prior art, advantageous effect possessed by the present invention is：
1st, each workpiece of wet shot unit is controlled by full hydraulic system, traditional multiple electricity are replaced with hydraulic system
Machine makes wet shot set structure compacter, and manipulation is more flexible.
2nd, wet shot work is delivered to after converging sandstone siccative and cement mortar by tee pipe coupling near working face again
Face can effectively improve jeting effect, reduce Dust Capacity and rebound degree, reduce the pollution to working environment.
3rd, Geldart-D particle spraying system conveying sandstone siccative, pumping system conveying cement mortar, the two are combined and can effectively reduced
Energy loss in material transportation process has prevented easy plugging problem.
4th, accelerator powder with sandstone at source is mixed and near Geldart-D particle to working face, has prevented traditional wet-spraying machine
The easy plugging of accelerator is added at source, the problem of quick coagulator for injecting is irregular is added at nozzle.
5th, thread mixing blade is added before nozzle to convert material along the linear motion of duct bottom with auxiliary air intake device
For along the screw of tube wall, material is more fully mixed, transfer efficiency higher, jeting effect is improved.
Description of the drawings
Fig. 1 is a kind of front view of full hydraulic concrete spraying unit of the present invention；
Fig. 2 is a kind of top view of full hydraulic concrete spraying unit of the present invention.
Specific embodiment
The present invention is further described below in conjunction with the accompanying drawings.
As illustrated in fig. 1 and 2, a kind of full hydraulic concrete spraying unit, including pulper 1, storage bin 2, rotator type spray
Penetrate machine 3, screw pump 6, tee pipe coupling 15 and vehicle frame 22, the pulper 1 be arranged on behind storage bin 2 and with storage bin 2
Feed connection, the storage bin 2 and screw pump 6 feed connect, and are pumped to the cement mortar in storage bin 2 by screw pump 6 wet
It sprays near working face.The tee pipe coupling 15 is arranged near wet shot working face, receives simultaneously blended cement and sandstone siccative, tool
The reception hybrid mode of body：The cement mortar discharge port 13 of the screw pump 6 connects with the cement mortar feeding mouth 16 of tee pipe coupling 15
It connects, the sandstone siccative discharge port 14 of the rotor spraying machine 3 is connected with the sandstone siccative feeding mouth 17 of tee pipe coupling 15, institute
The concrete discharge port for stating tee pipe coupling 15 is connected with nozzle 18.The cement mortar discharge port 13 is logical with cement mortar feeding mouth 16
Small hose connection is crossed, the sandstone siccative discharge port 14 is connected with sandstone siccative feeding mouth 17 by thick flexible pipe.Vehicle frame 22 carries
The critical piece of unit, vehicle frame 22 is below equipped with wheel in order to the movement of unit.
The pulper 1 includes one 1-1 of agitating shaft, two 1-4 of atomizing dust-removing system 1-2, one 1-3 of axis pin and axis pin.It is described
One 1-1 of agitating shaft is arranged in pulper 1, and is driven by hydraulic motor 1, and the atomizing dust-removing system 1-2 is arranged on stirring
The top of one 1-1 of axis carries out atomizing de-dusting processing to the preparation operation of cement mortar.The pulper 1 passes through one 1-3 of axis pin and vehicle
Frame 22 is hinged, and the pulper 1 is drivingly connected by two 1-4 of axis pin with hydraulic cylinder 11, and the hydraulic cylinder 11 does elongation action, drives
Dynamic pulper 1 topples over cement mortar to storage bin 2 around one 1-3 of axis pin, and hydraulic cylinder 11 does retract action, and driving pulper 1 is around axis pin
One 1-3 recovers initial position.
The storage bin 2 includes agitating shaft two 2-1, two 2-1 of agitating shaft and is driven by hydraulic motor 2 10, prevents storing
Cement slurry sets in storehouse 2.The rotor spraying machine 3 is driven by hydraulic motor 3 12, pneumatic conveying sandstone siccative.The liquid
The treble pump component 5 that pressure motor 1, hydraulic motor 2 10, hydraulic cylinder 11 and hydraulic motor 3 12 are driven by motor 4 provides dynamic
Power, hydraulic oil is provided by fuel tank 7, and action command is provided by hydraulic valve bank 8.
On the improvement of tee pipe coupling 15,15 exit of tee pipe coupling is provided with thread mixing blade 19, institute
It is optimal in two times that 15 inside span of tee pipe coupling is screw pitch to state thread mixing blade 19, cement mortar is with sandstone siccative in spiral
The auxiliary of hybrid blade 19 is lower to be uniformly mixed, and the linear motion of itself is converted to screw and is transmitted to nozzle 18, two times of spiral shells
Distance degree can not only ensure the uniformly mixed of material, the acquisition of screw, but also be avoided that the excessive loss of energy.The three-way pipe
The internal diameter ratio of the cement mortar feeding mouth 16 that connector 15 connects and sandstone siccative feeding mouth 17 is 3:5, which makes two kinds of materials
Comprehensive transfer efficiency reaches highest, and two feeding mouth axis angles are 40-60 degree, make material mixed effect in tee pipe coupling 15
It is best.
On the improvement of nozzle 18,18 front end of nozzle is provided with auxiliary air intake device 20, the auxiliary air intake device
20, which include several root air inlet pipe, forms, and is 2 in the present invention, and every air inlet pipe and pipeline at this be axial, tangential angle is distinguished
It is 30 degree, 45 degree and surrounds setting, and supplied by the air pump near working face, forms spiral air flow and material is carried out further to add
Speed ejects.
A kind of method of work of full hydraulic concrete spraying unit, step are as follows：
Step 1：Start motor 4, motor 4 drives treble pump component 5 as pulper 1, storage bin 2, rotor spraying machine 3
Power is provided and makes it into working condition；
Step 2：Concrete grey and water are poured into pulper 1, hydraulic motor 1 drives one 1-1 of agitating shaft rotations, by water
Plaster stirs evenly with water and cement mortar is made, and manipulation hydraulic valve bank 8 makes the movable cylinder of hydraulic cylinder 11 push two 1-4 of axis pin movements,
Pulper 1 is overturn under the impetus of hydraulic cylinder 11 around one 1-3 of axis pin toward 2 direction of storage bin, the cement that will be prepared
Slurry pours into storage bin 2；
Step 3：Storage bin 2 stores the cement mortar from pulper 1, and uniformly send cement mortar by the flow set
Enter screw pump 6, two 2-1 of agitating shaft is persistently stirred cement mortar under the driving of hydraulic motor 2 10 to prevent that it is solidifying therebetween
Gu；
Step 4：Cement mortar is pumped to tee pipe coupling 15 near working face by screw pump 6 by cement mortar discharge port 13
The cement mortar feeding mouth 16 of connection, while sandstone siccative is passed through sandstone by rotor spraying machine 3 under the driving of hydraulic motor 3 12
Siccative discharge port 14 is delivered to the sandstone siccative feeding mouth 17 of the connection of tee pipe coupling 15, and tee pipe coupling 15 is by cement mortar and sand
Short distance is delivered to nozzle 18 and is ejected into wet shot working face stone siccative after mixing.The present invention relates to sandstone siccative bag
The siccatives such as sandstone, accelerator powder are included, accelerator powder can be made to discharge uniformly and prevent accelerator powder and sandstone blending transportation
Accelerator condenses the problem of plugging in pipeline.
The screw pump 6 and rotor spraying machine 3 arrive the conveying between tee pipe coupling 15 as long distance delivery respectively, institute
Tee pipe coupling 15 is stated to convey for short distance to the conveying between nozzle 18.
The above is only the preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (2)
1. a kind of full hydraulic concrete spraying unit, it is characterised in that：Including pulper (1), storage bin (2), rotator type spray
Machine (3), screw pump (6) and tee pipe coupling (15) are penetrated, the pulper (1) connects with storage bin (2) feed, the storage bin
(2) connected with screw pump (6) feed, the cement mortar discharge port (13) of the screw pump (6) and the cement of tee pipe coupling (15)
It starches feeding mouth (16) to connect, the sandstone siccative discharge port (14) of the rotor spraying machine (3) and the sand of tee pipe coupling (15)
Stone siccative feeding mouth (17) connects, and the concrete discharge port of the tee pipe coupling (15) is connected with nozzle (18)；
The pulper (1) includes agitating shaft one (1-1), two (1- of atomizing dust-removing system (1-2), axis pin one (1-3) and axis pin
4), the agitating shaft one (1-1) is arranged in pulper (1), and is driven by hydraulic motor one (9), the atomizing dust-removing system
(1-2) is arranged on the top of agitating shaft one (1-1)；The pulper (1) is hinged by axis pin one (1-3) and vehicle frame (22), institute
It states pulper (1) to be drivingly connected by axis pin two (1-4) and hydraulic cylinder (11), the hydraulic cylinder (11) does elongation action, drives
Pulper (1) topples over cement mortar to storage bin (2) around axis pin one (1-3), and hydraulic cylinder (11) does retract action, drives pulper
(1) initial position is recovered around axis pin one (1-3)；
The storage bin (2) includes agitating shaft two (2-1), and the agitating shaft two (2-1) is driven by hydraulic motor two (10)；It is described
Rotor spraying machine (3) is driven by hydraulic motor three (12)；
The hydraulic motor one (9), hydraulic motor two (10), hydraulic cylinder (11) and hydraulic motor three (12) are driven by motor (4)
Dynamic treble pump component (5) provides power, and hydraulic oil is provided by fuel tank (7), and action command is provided by hydraulic valve bank (8)；
Tee pipe coupling (15) exit is provided with thread mixing blade (19), and the thread mixing blade (19) is in threeway
The internal span of pipe fitting (15) is 2 times of screw pitch, and material is transported under thread mixing blade (19) rotation with spiral after mixing
It is dynamic to be transmitted to nozzle (18)；
The cement mortar feeding mouth (16) of tee pipe coupling (15) connection and the internal diameter ratio of sandstone siccative feeding mouth (17) are 3:
5, and the axis angle between cement mortar feeding mouth (16) and sandstone siccative feeding mouth (17) is 40-60 degree；
Nozzle (18) front end is provided with auxiliary air intake device (20), and the auxiliary air intake device (20) is by several air inlet pipe
Composition, every air inlet pipe and pipeline at this be axial, tangential angle is around setting, and every air inlet pipe is connected with air pump supply；
The cement mortar discharge port (13) is connected with cement mortar feeding mouth (16) by small hose, the sandstone siccative discharge port
(14) it is connected with sandstone siccative feeding mouth (17) by thick flexible pipe；
The screw pump (6) and rotor spraying machine (3) arrive the conveying between tee pipe coupling (15) as long distance delivery respectively,
The tee pipe coupling (15) is arrived the conveying between nozzle (18) and is conveyed for short distance.
2. a kind of method of work of full hydraulic concrete spraying unit, it is characterised in that：
Step 1：Start motor (4), motor (4) driving treble pump component (5) is pulper (1), the spray of storage bin (2), rotator type
Machine (3) offer power is provided and makes it into working condition；
Step 2：Concrete grey and water are poured into pulper (1), hydraulic motor one (9) driving agitating shaft one (1-1) rotates, will
Concrete grey stirs evenly with water and cement mortar is made, and manipulation hydraulic valve bank (8) makes the movable cylinder of hydraulic cylinder (11) push two (1- of axis pin
4) moving, pulper (1) is overturn under the impetus of hydraulic cylinder (11) around axis pin one (1-3) toward storage bin (2) direction, with
The cement mortar prepared is poured into storage bin (2)；
Step 3：Cement mortar of storage bin (2) storage from pulper (1), and uniformly give cement mortar by the flow set
Enter screw pump (6), agitating shaft two (2-1) is persistently stirred cement mortar to prevent under hydraulic motor two (10) driving therebetween
It is solidified；
Step 4：Cement mortar is pumped to working face tee pipe coupling nearby by screw pump (6) by cement mortar discharge port (13)
(15) the cement mortar feeding mouth (16) of connection, while rotor spraying machine (3) does sandstone under hydraulic motor three (12) driving
Material is delivered to the sandstone siccative feeding mouth (17) of tee pipe coupling (15) connection, T joint by sandstone siccative discharge port (14)
By cement mortar, short distance is delivered to nozzle (18) and is ejected into wet shot working face head (15) after mixing with sandstone siccative, described
Sandstone siccative includes sandstone and accelerator powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510455729.2A CN105065034B (en) | 2015-07-29 | 2015-07-29 | A kind of full hydraulic concrete spraying unit and its method of work |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510455729.2A CN105065034B (en) | 2015-07-29 | 2015-07-29 | A kind of full hydraulic concrete spraying unit and its method of work |
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| Publication Number | Publication Date |
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| CN105065034A CN105065034A (en) | 2015-11-18 |
| CN105065034B true CN105065034B (en) | 2018-05-25 |
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|---|---|---|---|
| CN201510455729.2A Expired - Fee Related CN105065034B (en) | 2015-07-29 | 2015-07-29 | A kind of full hydraulic concrete spraying unit and its method of work |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106988761B (en) * | 2017-03-17 | 2020-01-31 | 山东聚亨源环保科技有限公司 | mining wet type concrete spraying unit capable of automatically feeding and stirring materials and free of dust |
| CN107013041B (en) * | 2017-04-20 | 2019-02-19 | 山东同得利集团有限公司 | A kind of efficient gravity flow pouring material wet-spraying machine |
| CN112593557A (en) * | 2020-12-02 | 2021-04-02 | 湖南煤矿机械有限公司 | Vehicle-mounted wet spraying machine convenient for discharging |
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| JPH0274797A (en) * | 1988-09-08 | 1990-03-14 | Shimizu Corp | Tunnel excavation working method and device therefor |
| CN202882945U (en) * | 2012-10-19 | 2013-04-17 | 平顶山市安泰华矿用安全设备制造有限公司 | Continuous track walking wet-type shotcrete machine |
| CN203822327U (en) * | 2014-02-25 | 2014-09-10 | 山东大学 | Separated wet-method injecting system for injecting concrete |
| CN204060715U (en) * | 2014-06-27 | 2014-12-31 | 河南省煤炭科学研究院有限公司 | Integral type concrete for mines wet shotcrete technology equipment |
| CN204186401U (en) * | 2014-10-22 | 2015-03-04 | 邯郸市峰峰矿区共创机电制修有限责任公司 | Wet shotcrete system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101514632B (en) * | 2009-03-27 | 2010-12-29 | 刘永 | Rotary air flow type concrete dry-conveying and wet-concreting machine |
| CN202823690U (en) * | 2012-09-13 | 2013-03-27 | 济宁矿业集团有限公司安居煤矿 | Pneumatic spiral mixing injection machine |
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- 2015-07-29 CN CN201510455729.2A patent/CN105065034B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0274797A (en) * | 1988-09-08 | 1990-03-14 | Shimizu Corp | Tunnel excavation working method and device therefor |
| CN202882945U (en) * | 2012-10-19 | 2013-04-17 | 平顶山市安泰华矿用安全设备制造有限公司 | Continuous track walking wet-type shotcrete machine |
| CN203822327U (en) * | 2014-02-25 | 2014-09-10 | 山东大学 | Separated wet-method injecting system for injecting concrete |
| CN204060715U (en) * | 2014-06-27 | 2014-12-31 | 河南省煤炭科学研究院有限公司 | Integral type concrete for mines wet shotcrete technology equipment |
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| CN105065034A (en) | 2015-11-18 |
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Granted publication date: 20180525 Termination date: 20210729 |