CN104453945A - Self-stirring wet type concrete sprayer - Google Patents
Self-stirring wet type concrete sprayer Download PDFInfo
- Publication number
- CN104453945A CN104453945A CN201410632321.3A CN201410632321A CN104453945A CN 104453945 A CN104453945 A CN 104453945A CN 201410632321 A CN201410632321 A CN 201410632321A CN 104453945 A CN104453945 A CN 104453945A
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- Prior art keywords
- cement paste
- stirring
- cement
- barrel body
- concrete
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0023—Cast, i.e. in situ or in a mold or other formwork
Abstract
The invention discloses a self-stirring wet type concrete sprayer which comprises a rotor type sprayer (2) arranged on a walking trolley frame I (1) and a cement paste stirrer (7). The cement paste stirrer (7) is arranged on a walking trolley frame II (6) connected with the walking trolley frame I. A cement paste conveying pump (8) is arranged on the walking trolley frame II at the lower end of the cement paste stirrer. One end of a cement paste conveying pipe (10) is connected with a discharging opening of the cement paste conveying pump. The other end of the cement paste conveying pipe (10) is connected with a branch pipe of a mixer. One end of a sand spraying pipe (11) is connected to a discharging opening in the lower end of the rotor type sprayer, and the other end of the sand spraying pipe (11) is connected to another branch pipe of the mixer. A main pipe of the mixer is connected with a concrete spraying pipe (3). According to the self-stirring wet type concrete sprayer, spraying distance is long, spraying material springback loss is low, meanwhile, dust pollution is low, and the sprayer is suitable for various places.
Description
Technical field
The present invention relates to a kind of concrete sprayer, being specifically related to a kind of wet concrete sprayer from stirring, belonging to technical field of engineering machinery.
Background technology
Concrete sprayer is the equipment places such as mine working, tunnel, national defence grottoes, massif bank protection being carried out to concrete ejection, mainly utilizes compressed air to enter concrete along feeding pipe continus convergence through punishment in advance chamber, and is ejected into working face and gets on.Dry type concrete injection can be divided into by the water feeding method difference of concrete mix, Wet-type concrete sprays and marginal half Wet-type concrete sprays three kinds.It is by cement by a certain percentage and aggregate that dry type concrete sprays, and after stirring, compressed blow air is to nozzle with from ejection after the press water mixing of pressure water tank; This mode construction method is simple, and speed is fast, but dust is too large, contaminated environment; Ejection material springback capacity is larger.It is sprayed by pipeline by the concrete mix added water entering spraying machine that Wet-type concrete sprays, and in injection, dust content is low, and springback capacity is little; But wet feed is easy to condense in material pipeline, results in blockage, cleaning trouble; Equipment investment is large, and concrete need add liquid accelerator, and cost is higher.Half Wet-type concrete sprays and also claims tidal to spray, namely concrete mix is the tide material (by volume) of moisture content 5% ~ 8%, compressed blow air is to nozzle with from ejection after the press water mixing of pressure water tank, when this material sprays, dust reduces, due to less than wet feed cementability, not sticky tank; But which ejection material springback capacity is comparatively large, and jet length is short.
According to the difference of concrete sprayer structure the most frequently used be divided into rotor spraying machine and pumped type spraying machine two kinds, hole is had in its rotor of rotor-type concrete sprayer, rotate at the effect lower rotor part of power, material to be bled lower chamber by the hole in rotor, concrete is sprayed by pipeline by high-pressure blast again, realize sprayed construction, it can only carry out dry spray or tide spray to concrete, and jet length is maximum can only reach 20m, environmental pollution especially severe simultaneously, grievous injury operating personnel's is healthy.Pumped type concrete sprayer is by all-hydraulic control, the concrete be stirred in hopper is drawn into concrete conveying cylinder by carriage cylinder, and then pass through valve, concrete is pushed in transfer pipeline, under high pressure wind action, concrete is sprayed, realizes sprayed construction, achieve the wet shot of real meaning; But this wet concrete sprayer can not self ready-mixed concrete, can only outer portion's supply finished product concrete, because the place conditions of work such as mine working are restricted, cannot outer portion's supply finished product concrete, thus applicable situation is limited.
Summary of the invention
For solving the problem, the invention provides a kind of wet concrete sprayer from stirring, jet length is long, and material spray resilience is little, and dust pollution is few simultaneously, is applicable to various occasion.
Technical scheme adopted to achieve these goals: a kind of wet concrete sprayer from stirring, comprise the rotor spraying machine be arranged on traveling vehicle frame I, concrete ejection pipe and the spray gun being connected to concrete ejection pipe top, air inlet pipeline is connected with lower air duct with the upper air duct of rotor spraying machine respectively, also comprise the cement mixer on another traveling vehicle frame II of being arranged on and being connected with traveling vehicle frame I, cement paste delivery pump is arranged on the traveling vehicle frame II of cement mixer lower end; Cement paste carrier pipe one end cement paste conveying delivery side of pump connects, and the other end connects being in charge of of blender; Blast tube one end is connected to the discharging opening of rotor spraying machine, and another of other end connection blender is in charge of; The supervisor of blender is connected with concrete ejection pipe.
The material that rotor spraying machine sprays is sandstone compound; The material added in described cement mixer is cement and water, and its water/binder ratio is greater than 0.5.
Rotor spraying machine carries sand to add the compound of stone by blast tube under high pressure wind action, cement and water are added in cement mixer and stir into cement paste, then utilize cement paste delivery pump and carry cement paste by cement paste carrier pipe, sandstone compound and cement paste are mixed to form concrete in a mixer, and under high pressure wind action by concrete ejection pipe by concrete ejection to work plane, thus complete course of injection.Because the sandstone compound carried in rotor spraying machine can not block blast tube, cement paste is that flow-like can not starch carrier pipe by plugging cement simultaneously, concrete ejection pipe can adopt shorter pipeline not easily to block, solve a susceptible to plugging difficult problem in Wet-type concrete injection, under high pressure wind action, jet length can reach more than 60m simultaneously; It is little that spraying operation produces Dust Capacity, and rebound loss is few, solves the problem of environment pollution in dry type concrete spraying machine and rebound loss; When solving rotor spraying machine only to be used in dry spray or tide spray simultaneously, although rotor spraying machine conveying is siccative, wet feed can be mixed in a mixer with cement paste and carries out wet shot.
Further improvement, the pressure of cement paste delivery pump is greater than the blast in blast tube.Prevent the slack-off conveying capacity of cement paste transporting velocity from tailing off, impact mixed concrete quality husky with stone.
Further, described cement mixer comprises motor, reductor, rabbling mechanism, upper barrel body and lower barrel body, and the bottom of described upper barrel body is flat, and the bottom of described lower barrel body is taper; Motor via reducer is connected with the shaft in rabbling mechanism, and shaft runs through upper barrel body and lower barrel body, and shaft is vertically provided with stirring vane.
Distance 2mm-4mm at the bottom of stirring vane in upper barrel body and bucket, at the bottom of sinking to barrel, ensures the abundant stirring of cement paste to prevent the cement added in cement mixer; The bottom of lower barrel body is taper, is more convenient to cement paste and is extracted by cement pump, the material that easy cleaning is residual simultaneously.Stirring vane in described upper barrel body is used for the material stirring added to become cement paste, and the stirring vane of lower barrel body occurs segregation to prevent cement paste.
Further, the stirring vane being arranged on upper barrel body inside comprises being welded on stirring rod I on shaft and being welded on, and upper barrel body inner barrel wall breaks up rod, stirring rod I with break up that rod is staggered to be evenly arranged; The stirring vane being arranged on lower barrel body inside is the stirring rod II be welded on shaft.
The stirring rod of shaft both sides and inner barrel wall break up rod in cement paste whipping process, the mutual collision frequency of cement paste can be increased, can be on the one hand cement paste by the material stirring of interpolation rapidly and uniformly, the formation of large caking in cement paste can be prevented on the other hand.
Cement paste delivery pump comprise screw pump, motor and and governor, governor is connected with motor, and screw pump is connected with the grout outlet of cement mixer lower end.
Screw pump flow trim, pressure fluctuation are little, do not form eddy current when pumped (conveying) medium, insensitive to the viscosity of medium, are extremely suitable for the cement paste of transfer of highly viscous; The rotating speed of the adjustable pump of governor, realizes flow adjustable, to meet different concrete cement proportionings.
Further, point bore be connected with cement paste carrier pipe in blender is less than point bore be connected with blast tube.
Cement paste carrier pipe, blast tube and concrete ejection pipe, select different internal diameter tube according to different emitted dose.Dry sandstone compound due to what carry in blast tube, what carry in cement paste carrier pipe is the cement paste of thickness, what carry in the concrete ejection pipe after blender is wet concrete, their respective movement velocitys are different, for preventing blocking pipeline, different internal diameter tube must be selected according to different emitted doses.
As preferably, cement paste carrier pipe is layer of steel wire sebific duct; Blast tube and concrete ejection pipe are the wear-resisting sebific duct of layer of steel wire.Both there is flexible characteristic, met the wear-resisting requirement of equipment pipeline simultaneously.
Further, between being in charge of of cement paste carrier pipe and blender, ball valve is provided with; The tail end of air inlet pipeline is provided with air-valve for subsequent use.
The ball valve that cement paste carrier pipe and blender junction are arranged, can regulate cement paste conveying capacity by trace; The air-valve for subsequent use of air inlet pipeline tail end, after terminating, receives cement paste carrier pipe on air-valve for subsequent use, is blown off by the leftover slurry in pipeline for sprayed construction, to prevent water material-mud frozen plug pipeline.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the top view of each parts on traveling vehicle frame I;
Fig. 3 is the structural representation of cement mixer 7;
Fig. 4 is the structural representation of rabbling mechanism in upper barrel body;
Fig. 5 is the top view of Fig. 4;
Fig. 6 is the enlarged diagram at A position in Fig. 1;
Fig. 7 is the enlarged diagram at B position in Fig. 1.
In figure: 1, traveling vehicle frame I; 2, rotor spraying machine; 3, concrete ejection pipe; 4, spray gun; 5, air inlet pipeline; 51, air-valve; 6, traveling vehicle frame II; 7, cement mixer; 71, motor; 72, reductor; 73, rabbling mechanism; 731, shaft; 732, stirring vane; 732-1, stirring rod I; 732-2, break up rod; 732-3, stirring rod II; 74, upper barrel body; 75, lower barrel body; 8, cement paste delivery pump; 81, screw pump; 82, motor; 83, governor; 9, blender; 91, ball valve; 10, cement paste carrier pipe; 11, blast tube.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
As depicted in figs. 1 and 2, a kind of wet concrete sprayer from stirring, comprise the rotor spraying machine 2 be arranged on traveling vehicle frame I1, concrete ejection pipe 3 and the spray gun 4 being connected to concrete ejection pipe top, air inlet pipeline 5 is connected with lower air duct with the upper air duct of rotor spraying machine 2 respectively, also comprise the cement mixer 7 on another traveling vehicle frame II6 of being arranged on and being connected with traveling vehicle frame I1, cement paste delivery pump 8 is arranged on the traveling vehicle frame II6 of cement mixer 7 lower end; Cement paste carrier pipe 10 one end connects the discharging opening of cement paste delivery pump 8, and the other end connects being in charge of of blender 9; Blast tube 11 one end connects the discharging opening of rotor spraying machine 2 lower end, and another of other end connection blender 9 is in charge of; The supervisor of blender 9 is connected with concrete ejection pipe 3.
The material that rotor spraying machine 2 sprays is sandstone compound; The material added in described cement mixer 7 is cement and water, and its water/binder ratio is greater than 0.5.
Rotor spraying machine 2 carries sand to add the compound of stone by blast tube 11 under high pressure wind action, cement and water are added in cement mixer 7 and stir into cement paste, then utilize cement paste delivery pump 8 and carry cement paste by cement paste carrier pipe 10, sandstone compound and cement paste are mixed to form concrete in blender 9, and under high pressure wind action by concrete ejection pipe 3 by concrete ejection to work plane, thus complete course of injection.Because the sandstone compound carried in rotor spraying machine can not block blast tube, cement paste is that flow-like can not starch carrier pipe by plugging cement simultaneously, concrete ejection pipe can adopt shorter pipeline not easily to block, solve a susceptible to plugging difficult problem in Wet-type concrete injection, under high pressure wind action, jet length can reach more than 60m simultaneously; It is little that spraying operation produces Dust Capacity, and rebound loss is few, solves the problem of environment pollution in dry type concrete spraying machine and rebound loss.
Further improvement, the pressure of cement paste delivery pump 8 is greater than the blast in blast tube 11.Prevent the slack-off conveying capacity of cement paste transporting velocity from tailing off, impact mixed concrete quality husky with stone.
Further improve as shown in Figure 3, described cement mixer 7 comprises motor 71, reductor 72, rabbling mechanism 73, upper barrel body 74 and lower barrel body 75, and the bottom of described upper barrel body 74 is flat, and the bottom of described lower barrel body 75 is taper; Motor 71 is connected with the shaft 731 in rabbling mechanism 73 by reductor 72, and shaft 731 runs through upper barrel body and lower barrel body, and shaft is vertically provided with stirring vane 732.
Distance 2mm-4mm at the bottom of the stirring vane of lower floor and bucket in upper barrel body 74, at the bottom of sinking to barrel, ensures the abundant stirring of cement paste to prevent the cement added in cement mixer; The bottom of lower barrel body 75 is taper, is more convenient to cement paste and is extracted by cement pump, the material that easy cleaning is residual simultaneously.Stirring vane in described upper barrel body is used for the material stirring added to become cement paste, and the stirring vane of lower barrel body occurs segregation to prevent cement paste.
Further improve as shown in Figures 3 to 5, the stirring vane being arranged on upper barrel body inside comprises being welded on stirring rod I732-1 on shaft 731 and being welded on, and upper barrel body inner barrel wall breaks up excellent 732-2, stirring rod I732-1 with break up that excellent 732-2 is staggered to be evenly arranged; The stirring vane being arranged on lower barrel body inside is be welded on the stirring rod II732-3 on shaft 731.
The stirring rod 732-1 of shaft 731 both sides and inner barrel wall break up excellent 732-2 in cement paste whipping process, the mutual collision frequency of cement paste can be increased, can be on the one hand cement paste by the material stirring of interpolation rapidly and uniformly, the formation of large caking in cement paste can be prevented on the other hand.
As shown in Figure 6, cement paste delivery pump 8 comprises screw pump 81, motor and 82 and governor 83, and governor 83 is connected with motor 82, and screw pump 81 is connected with the grout outlet of cement mixer 7 lower end.
Screw pump flow trim, pressure fluctuation are little, do not form eddy current when pumped (conveying) medium, insensitive to the viscosity of medium, are extremely suitable for the cement paste of transfer of highly viscous; The rotating speed of the adjustable pump of governor, realizes flow adjustable, to meet different concrete cement proportionings.
Further improve as shown in Figure 7, point bore be connected with cement paste carrier pipe 10 in blender 9 is less than point bore be connected with blast tube 11.
Cement paste carrier pipe 10, blast tube 11 and concrete ejection pipe 3, select different internal diameter tube according to different emitted dose.Due to conveying in blast tube 11 is dry sandstone compound, in cement paste carrier pipe 10, conveying is the cement paste of thickness, in concrete ejection pipe 3 after blender 9, conveying is wet concrete, their respective movement velocitys are different, for preventing blocking pipeline, different internal diameter tube can be selected according to different emitted doses.
As preferably, cement paste carrier pipe 10 is layer of steel wire sebific duct; Blast tube 11 and concrete ejection pipe 3 are the wear-resisting sebific duct of layer of steel wire.Both there is flexible characteristic, met the wear-resisting requirement of equipment pipeline simultaneously.
Further improve as shown in Fig. 7 and Fig. 2, between being in charge of of cement paste carrier pipe 10 and blender 9, being provided with ball valve 91; The tail end of air inlet pipeline 5 is provided with air-valve 51 for subsequent use.
The ball valve 91 that cement paste carrier pipe and blender junction are arranged, can regulate cement paste conveying capacity by trace; The air-valve for subsequent use 51 of air inlet pipeline tail end, after terminating, receives cement paste carrier pipe on air-valve for subsequent use, is blown off by the leftover slurry in pipeline for sprayed construction, to prevent water material-mud frozen plug pipeline.
In actual ejection work, the blast of sandblasting pipeline is generally 0.3MPa-0.4MPa, and cement slurrypump pressurization pressure is greater than the pressure of blast tube, is generally greater than 0.6MPa; ; The blast tube of different-diameter should be selected, to prevent blocking pipeline, when emitted dose is 5.5-7m according to the difference of emitted dose
3during/h, adopt internal diameter
blast tube, when emitted dose is 4.5-5.5m
3during/h, adopt internal diameter
blast tube, when emitted dose is less than 4.5m
3during/h, adopt internal diameter
blast tube; The length 7m-12m of the upper concrete ejection pipe connected of blender supervisor is best, long easy blocking pipeline, too short inconvenient operation; Blender is steel design, and its supervisor and two internal diameters be in charge of are determined according to the pipeline be attached thereto; Because the machine uses multiple motor, therefore multipath control switch is installed after rotor spraying machine to realize centralized Control.
The present invention is different from material addition manner in the past and concrete course of injection, solve Wet-type concrete spray in a susceptible to plugging difficult problem, and dry type concrete spray in the problem of environment pollution and rebound loss.Long from the jet length of the wet concrete sprayer stirred, material spray rebound loss is little, and dust pollution is few simultaneously, is applicable to various occasion.
Claims (9)
1. the wet concrete sprayer from stirring, comprise the rotor spraying machine (2) be arranged on traveling vehicle frame I (1), concrete ejection pipe (3) and be connected to the spray gun (4) on concrete ejection pipe top, air inlet pipeline (5) is connected with lower air duct with the upper air duct of rotor spraying machine (2) respectively, it is characterized in that: also comprise the cement mixer (7) on another traveling vehicle frame II (6) of being arranged on and being connected with traveling vehicle frame I (1), cement paste delivery pump (8) is arranged on the traveling vehicle frame II (6) of cement mixer (7) lower end, cement paste carrier pipe (10) one end is connected to the discharging opening of cement paste delivery pump (8), and the other end connects being in charge of of blender (9), blast tube (11) one end connects the lower end discharging opening of rotor spraying machine (2), and another of other end connection blender (9) is in charge of, the supervisor of blender (9) is connected with concrete ejection pipe (3).
2. the wet concrete sprayer from stirring as claimed in claim 1, is characterized in that: the material that rotor spraying machine (2) sprays is sandstone compound; The material added in described cement mixer (7) is cement and water, and its water/binder ratio is greater than 0.5.
3. the wet concrete sprayer from stirring as claimed in claim 2, is characterized in that: the pressure of cement paste delivery pump (8) is greater than the blast in blast tube (11).
4. the wet concrete sprayer from stirring as claimed in claim 3, it is characterized in that: described cement mixer (7) comprises motor (71), reductor (72), rabbling mechanism (73), upper barrel body (74) and lower barrel body (75), the bottom of described upper barrel body (74) is flat, and the bottom of described lower barrel body (75) is taper; Motor (71) is connected with the shaft (731) in rabbling mechanism (73) by reductor (72), shaft (731) runs through upper barrel body and lower barrel body, and shaft is vertically provided with stirring vane (732).
5. the wet concrete sprayer from stirring as claimed in claim 4, it is characterized in that: the stirring vane being arranged on upper barrel body inside comprise the stirring rod I (732-1) that is welded on shaft (731) and be welded on upper barrel body inner barrel wall break up rod (732-2), stirring rod I (732-1) with break up that rod (732-2) is staggered to be evenly arranged; Be arranged on the stirring vane of lower barrel body inside for being welded on the stirring rod II (732-3) on shaft (731).
6. the wet concrete sprayer from stirring as claimed in claim 5, it is characterized in that: cement paste delivery pump (8) comprises screw pump (81), motor and (82) and governor (83), governor (83) is connected with motor (82), and screw pump (81) is connected with the grout outlet of cement mixer (7) lower end.
7. the wet concrete sprayer from stirring as claimed in claim 6, is characterized in that: point bore be connected with cement paste carrier pipe (10) in blender (9) is less than point bore be connected with blast tube (11).
8. the wet concrete sprayer from stirring as claimed in claim 7, is characterized in that: cement paste carrier pipe (10) is layer of steel wire sebific duct; Blast tube (11) and concrete ejection pipe (3) are the wear-resisting sebific duct of layer of steel wire.
9. as described in claim as arbitrary in claim 1 to 8 from the wet concrete sprayer stirred, it is characterized in that: between being in charge of of cement paste carrier pipe (10) and blender (9), be provided with ball valve (91); The tail end of air inlet pipeline (5) is provided with air-valve (51) for subsequent use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410632321.3A CN104453945A (en) | 2014-11-11 | 2014-11-11 | Self-stirring wet type concrete sprayer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410632321.3A CN104453945A (en) | 2014-11-11 | 2014-11-11 | Self-stirring wet type concrete sprayer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104453945A true CN104453945A (en) | 2015-03-25 |
Family
ID=52900615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410632321.3A Pending CN104453945A (en) | 2014-11-11 | 2014-11-11 | Self-stirring wet type concrete sprayer |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105041342A (en) * | 2015-08-28 | 2015-11-11 | 平顶山市安泰华矿用安全设备制造有限公司 | Combined and wet type concrete spraying machine |
| CN105128147A (en) * | 2015-08-28 | 2015-12-09 | 平顶山市安泰华矿用安全设备制造有限公司 | Slurry mixing conveyor for combined type wet concrete sprayer |
| WO2017050950A3 (en) * | 2015-09-25 | 2017-05-18 | Biobest Belgium N.V. | Use of aqueous fiber dispersion for improving biological control of pest by predatory mites |
| CN107599170A (en) * | 2017-10-18 | 2018-01-19 | 杨光 | A kind of antisiludging building mortar mixing blow-down drum of two-way stirring |
| CN109732776A (en) * | 2019-02-01 | 2019-05-10 | 泰安泰烁岩层控制科技有限公司 | A kind of high-consistency cement grout spray equipment |
| CN110038244A (en) * | 2019-04-15 | 2019-07-23 | 徐工集团工程机械有限公司 | One kind sandblast extinguishing device and the extinguishing vehicle that sandblasts, sandblast towed vehicle |
| CN110267928A (en) * | 2017-01-15 | 2019-09-20 | 迈克尔·乔治·巴特勒 | The equipment, system and method for the pumpable concrete for being zero for generating and being poured slump |
| CN110509433A (en) * | 2019-09-05 | 2019-11-29 | 山东省路桥集团有限公司 | Fountain concrete preparation facilities and preparation method thereof |
| CN115217335A (en) * | 2022-08-04 | 2022-10-21 | 江苏鼎甲科技有限公司 | Multifunctional wet gas concrete sprayer |
-
2014
- 2014-11-11 CN CN201410632321.3A patent/CN104453945A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105041342A (en) * | 2015-08-28 | 2015-11-11 | 平顶山市安泰华矿用安全设备制造有限公司 | Combined and wet type concrete spraying machine |
| CN105128147A (en) * | 2015-08-28 | 2015-12-09 | 平顶山市安泰华矿用安全设备制造有限公司 | Slurry mixing conveyor for combined type wet concrete sprayer |
| WO2017050950A3 (en) * | 2015-09-25 | 2017-05-18 | Biobest Belgium N.V. | Use of aqueous fiber dispersion for improving biological control of pest by predatory mites |
| CN110267928A (en) * | 2017-01-15 | 2019-09-20 | 迈克尔·乔治·巴特勒 | The equipment, system and method for the pumpable concrete for being zero for generating and being poured slump |
| CN107599170A (en) * | 2017-10-18 | 2018-01-19 | 杨光 | A kind of antisiludging building mortar mixing blow-down drum of two-way stirring |
| CN109732776A (en) * | 2019-02-01 | 2019-05-10 | 泰安泰烁岩层控制科技有限公司 | A kind of high-consistency cement grout spray equipment |
| CN110038244A (en) * | 2019-04-15 | 2019-07-23 | 徐工集团工程机械有限公司 | One kind sandblast extinguishing device and the extinguishing vehicle that sandblasts, sandblast towed vehicle |
| CN110038244B (en) * | 2019-04-15 | 2024-03-01 | 江苏徐工工程机械研究院有限公司 | Sand-blasting fire extinguishing device, sand-blasting fire extinguishing vehicle and sand-blasting trailer |
| CN110509433A (en) * | 2019-09-05 | 2019-11-29 | 山东省路桥集团有限公司 | Fountain concrete preparation facilities and preparation method thereof |
| CN115217335A (en) * | 2022-08-04 | 2022-10-21 | 江苏鼎甲科技有限公司 | Multifunctional wet gas concrete sprayer |
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Application publication date: 20150325 |