CN104948205A - Accelerating agent quantitatively-adding dry-wet dual purpose concrete spraying machine - Google Patents
Accelerating agent quantitatively-adding dry-wet dual purpose concrete spraying machine Download PDFInfo
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- CN104948205A CN104948205A CN201510304298.XA CN201510304298A CN104948205A CN 104948205 A CN104948205 A CN 104948205A CN 201510304298 A CN201510304298 A CN 201510304298A CN 104948205 A CN104948205 A CN 104948205A
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Abstract
The invention discloses an accelerating agent quantitatively-adding dry-wet dual purpose concrete spraying machine. The accelerating agent quantitatively-adding dry-wet dual purpose concrete spraying machine is characterized by comprising a concrete mix conveying system, a spraying system used for spraying a concrete mix and a liquid state accelerating agent supply system, wherein the tail end of the concrete mix conveying system is arranged above the spraying system, and the liquid state accelerating agent supply system is arranged at one side of the spraying system. The concrete mix conveying system, the spraying system and the liquid state accelerating agent supply system are all arranged on a base plate, and the concrete mix conveying system is obliquely upward arranged. The accelerating agent quantitatively-adding dry-wet dual purpose concrete spraying machine has the advantages that concrete materials are conveyed through chained driving and driven components, the sealing area is reduced, and the weight is lowered; through the vertical arrangement of a driving chain wheel and a driven chain wheel, the operation of the spraying machine is convenient to observe, and the spraying machine is convenient to repair; through secondary ensealing a discharge port of a discharge pipe, it is guaranteed that the concrete mix are blown to the discharge port smoothly; through the cyclic utilization of wind exhausted from a tailing fluid director into a gas-tight chamber, the discharge of concrete mix is facilitated.
Description
Technical field
The present invention relates to a kind of sprayed mortar plant equipment, be specifically related to a kind of quantitatively interpolation accelerating admixture Wet-dry concrete sprayer.
Background technology
Dry (tide) spray machine is mainly used for dry spray or tide spray, is widely used in domestic and international underground mine roadway engineering ejection supporting.Dry (tide) formula spraying machine operating principle is: material is along with rotor is with the rotation of certain speed in material cup, and under pressure and jet effect, mass transport to nozzle, and adds water at nozzle place and ejects.It is dry that (tide) spray machine mainly contains tank cylinder formula by mechanical structure form, spiral, rotator type, rotating disc type are several.Tank cylinder formula dry spraying machine structure is simply easy to safeguard, but it is relatively heavy; Screw spraying machine volume little material loading height is low, but the large fed distance of consumed power is short, uses not extensive in Practical Project; Rotor spraying machine production capacity is high, fed distance is far away, volume is moderate, production efficiency is high, suitable doing is formed a complete and comprehensive system for collecting real estate fees; Rotating disc type spraying machine compact conformation, volume is little, quality is light, good combination property, extensively adopts in all kinds of engineering.With rotator type and rotating disc type spraying machine application more, impact larger.
Wet-spraying machine is the machinery for concrete spraying support wet spraying process, is the improvement on dry (tide) spray machine basis and development.The operating principle of wet-spraying machine is: after material mixes by a certain percentage with water in material base, by pumping or pneumatic transmission by material transportation to nozzle place, and to eject behind nozzle place and liquid accelerator mixing.Wet-spraying machine can be divided into pumping type and the large class of pneumatic transmission type two: pumping type wet-spraying machine installs nozzle in transfer pipeline exit and accesses compressed air, gone out by concrete ejection, mainly contain plunger pump type, screw pump and extruding pump type 3 type; Pneumatic transmission type wet-spraying machine utilizes compressed air that material is delivered to nozzle place with the form of " thin stream " in conveying pipeline directly to spray, and is domesticly mainly rotor-type and rotary piston type two class.
The current most of building site of China all in use dry shotcreting technique, adopts rotator type dry spraying machine.In course of injection, produce a large amount of dust and resilience, serious environment pollution, waste concrete material, harm constructor is physically and mentally healthy.The loss of sprayed mortar later strength is serious, and supporting intensity is not enough, easily causes landslide, brings hidden danger to construction safety.Existing wet spraying process is immature, corollary equipment is complicated, cost is higher, easily produce plugging, cleaning is difficult, have a strong impact on construction speed; The concrete sprayer of Wet-dry is less, and field working conditions is very complicated, need but only have wet concrete sprayer when utilizing dry type concrete spraying machine again, need to dispatch again from other places, construction is caused to delay, or put up with and replace with other machines, be easy to cause last precision not high.In addition, need to blow concrete material with larger blast in spraying machine, the simple wind in a direction that relies on blows the larger power of needs to concrete material, and meanwhile, this blast can not realize recycling, and utilization rate is lower.
Summary of the invention
The object of the invention is the deficiency for solving above-mentioned spraying machine, providing that a kind of efficiency is high, the other dust of machine is low, long service life, the quantitative interpolation accelerating admixture Wet-dry spraying machine of Wet-dry.
In order to reach above-mentioned purpose, the present invention adopts following technical scheme:
A kind of quantitatively add accelerating admixture Wet-dry concrete sprayer, comprise concrete mix induction system, for the spraying system of sprayed mortar mix and liquid accelerating agent feed system; The end of concrete mix induction system is arranged on the top of spraying system, and liquid accelerating agent feed system is arranged on the side of spraying system;
Concrete mix induction system, spraying system and liquid accelerating agent feed system are all arranged on chassis, and chassis is arranged with running gear, and concrete mix induction system tilts upward setting;
Spraying system comprises for the injection equipment of sprayed mortar mix with for providing the connecting gear of power for injection equipment; Injection equipment comprises feeding hopper, gas-tight silo and tailing air deflector, and gas-tight silo is horizontally set on the outside of upper end tandem piston parts, and feeding hopper is vertically arranged on the side of gas-tight silo, and tailing air deflector is arranged on the opposite side of gas-tight silo; The discharge nozzle communicated with gas-tight silo is set at gas-tight silo center vertical, air intake is set at the upper horizontal of gas-tight silo, the 3rd blast pipe is set between tailing air deflector and air intake.
Further, chassis comprises the first chassis and the second chassis, the distance of the first chassis and the setting of the second interval, chassis, and described concrete mix induction system is inclined on the first chassis, arranges the first row walking system under the first chassis; Described spraying system and liquid accelerating agent feed system are arranged on the second chassis, arrange the second running gear under the second chassis.
Further, connecting gear comprises drive sprocket parts, driven sprocket parts and tandem piston parts, drive sprocket parts and driven sprocket parts are vertically arranged on the two ends on chassis respectively, and tandem piston parts are arranged between drive sprocket parts and driven sprocket parts.
Further, concrete mix induction system comprises the conveying auger be inclined on the first chassis, arranges concrete hopper and powder accelerator hopper in the front end of conveying auger, and conveying auger is driven by the first motor be arranged on the first chassis and rotates.
Further, liquid accelerating agent feed system comprises liquid accelerating agent feed bin, liquid accelerating agent pump and high-pressure water pipe, liquid accelerating agent pump is arranged on the side on described chassis, and liquid accelerating agent feed bin is arranged on the top of liquid accelerating agent pump, and liquid accelerating agent pump is communicated with high-pressure water pipe.
Further, drive sprocket parts comprise support, drive sprocket and drive sprocket adjuster, and active bracket vertically arranges on described chassis, and the axle of drive sprocket is horizontally fixed on support, drive sprocket adjuster is connected with drive sprocket, is arranged on the side of drive sprocket; Described driven sprocket parts comprise support, driven sprocket and driven sprocket adjuster, driven carriage vertically arranges on described chassis, the axle of driven sprocket is horizontally fixed on support, and driven sprocket adjuster is connected with driven sprocket, is arranged on the side of driven sprocket.
Further, chassis arranges control cabinet, control cabinet is individually connected with the power source of described liquid accelerating agent feed system with described concrete mix induction system, described spraying system.
Further, tandem piston parts comprise cuff link, piston ring and seal, and seal is fixed on the centre of cuff link by piston ring, and multiple piston ring is connected into one by cuff link and encloses the drive sprocket described in connecting and driven sprocket.
Further, the outlet of discharge nozzle arranges the second blast pipe.
Further, condensation pipe is set outside described gas-tight silo.
Operating principle of the present invention is: control cabinet controls the first motor and rotates, first driven by motor conveying auger rotates around the axis of conveying auger, concrete mix is added in concrete hopper, powder accelerator is added in powder accelerator hopper, the two enters into the feeding hopper of spraying system in conveying auger after mixing, control cabinet controls the second motor and rotates, second motor drives drive sprocket to rotate by the second motor reducer, and then drive tandem piston parts to rotate, the concrete mix that with the addition of powder accelerator enters in gas-tight silo from feeding hopper under the movement of tandem piston parts, high-pressure blast passes through air intake, concrete mix blows out by the second blast pipe and the 3rd blast pipe from discharging opening, the concrete mix that can not blow out is discharged by tailing air deflector, or by conveying auger delivering concrete mix, by spraying system, mix is ejected into nozzle afterwards, provides liquid accelerating agent in high-pressure water pipe by liquid accelerating agent feed system, mix with the water in high-pressure water pipe.
The invention has the beneficial effects as follows:
1) this spraying machine is applicable to concrete dry spice and wet concrete mix material, and can not blockage phenomenon;
2) controlled the amount of liquid accelerating agent pump supply liquid accelerating agent by control cabinet, realize the volume accurately controlling liquid accelerating agent;
3) separately added by concrete material and powder accelerator, realize the interpolation accurately controlling powder accelerator dosage;
4) transmitted concrete material by chain type active and slave unit, sealing area reduces, and weight obtains and alleviates;
5) by drive sprocket and driven sprocket are vertically arranged, the convenient running observing spraying machine, meanwhile, once there is any problem, convenient repairing;
6) adding wind by carrying out secondary in the discharge outlet of discharge nozzle, ensure that concrete mix is blown into discharging opening smoothly; Recycle in gas-tight silo by the wind that tailing air deflector place is discharged, facilitate the discharge of concrete mix;
7) easy and simple to handle, there is not plugging in easy cleaning, can realize feeding in continuous material; At the scene in application, effectively can reduce the Dust Capacity in sprayed construction and springback capacity, improve sprayed mortar quality;
8) by the wind gone out in tailing air deflector is incorporated into air inlet by the 3rd blast pipe, not only increase the dynamics promoting concrete mix, and achieve the utilization again of the energy.
Accompanying drawing explanation
Fig. 1 quantitatively adds accelerating admixture Wet-dry concrete sprayer schematic diagram;
Fig. 2 quantitatively adds accelerating admixture Wet-dry concrete ejection side view;
Fig. 3 quantitatively adds accelerating admixture Wet-dry concrete sprayer top view;
Wherein: 1. the first motor, 2. concrete hopper, 3. powder accelerator hopper, 4. conveying auger, 5. expansion link, 6. the second motor, 7. drive sprocket, 8. driven sprocket, 9. cuff link, 10. gas-tight silo, 11. tailing air deflectors, 12. air intakes, 13. discharging openings, 14. feeding hoppers, 15. liquid accelerating agent feed bins, 16. liquid accelerating agent supply pumps, 17. control cabinets.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, clear, complete description is carried out to the technical scheme in the embodiment of the present invention.
As Figure 1-3, a kind of quantitatively add accelerating admixture Wet-dry concrete sprayer, comprise concrete mix induction system, for the spraying system of sprayed mortar mix and liquid accelerating agent feed system; The end of concrete mix induction system is arranged on the top of spraying system, liquid accelerating agent feed system is arranged on the side of spraying system, concrete mix induction system, spraying system and liquid accelerating agent feed system are all arranged on chassis, chassis is arranged with running gear, and concrete mix induction system tilts upward setting;
Spraying system comprises for the injection equipment of sprayed mortar mix with for providing the connecting gear of power for injection equipment; Injection equipment comprises feeding hopper 14, gas-tight silo 10 and tailing air deflector 11, and gas-tight silo 10 is horizontally set on the outside of upper end tandem piston parts, and feeding hopper is vertically arranged on the side of gas-tight silo, and tailing air deflector is arranged on the opposite side of gas-tight silo; The discharge nozzle communicated with gas-tight silo is set at gas-tight silo center vertical, lateral bend outside the first vertical backward described chassis of discharge nozzle, at the upper horizontal of gas-tight silo, air intake 12 is set, in the outlet of discharge nozzle, the second blast pipe is set, the discharging opening of the second blast pipe and discharge nozzle is obliquely installed, and adds blowing concrete mix; 3rd blast pipe is set between tailing air deflector and air intake, condensation pipe 20 is set outside gas-tight silo, condensation pipe can encase feeding hopper 14, gas-tight silo and discharge nozzle, water is full of in pipe, for sprocket wheel mobile friction cooling produced in gas-tight silo, meanwhile, condensation pipe is connected to the water inlet of high-pressure water pipe, the outlet angled downward from horizontal of tailing air deflector 11.
Chassis comprises the first chassis and the second chassis, and distance, the front and back of the first chassis and the setting of the second interval, chassis are arranged, and described concrete mix induction system is inclined on the first chassis, arranges the first row walking system under the first chassis; Described spraying system and liquid accelerating agent feed system are arranged on the second chassis, arrange the second running gear under the second chassis; Arrange control cabinet 17 in the second spraying system side, the end, control cabinet 17 is individually connected with the power source of described liquid accelerating agent feed system with described concrete mix induction system, described spraying system.
Or chassis is as a whole, conveying auger 4 is inclined at the front end on chassis, and spraying system is arranged on centre and the rear end on chassis, and the end of conveying auger is just to the top of feeding hopper.
The first row walking system and the wheel of the second running gear all for being driven by dynamical system.
Connecting gear comprises drive sprocket parts, driven sprocket parts and tandem piston parts, and drive sprocket parts and driven sprocket parts are vertically arranged on the two ends on chassis respectively, and tandem piston parts are arranged between drive sprocket parts and driven sprocket parts.
Concrete mix induction system comprises the conveying auger be inclined on the first chassis, between conveying screw feeder and the end on the first chassis, expansion link 5 is vertically set, during in order to realize spraying system differing heights, to the adjustment of conveying auger height, simultaneously, play a supporting role, in the front end of conveying auger 4, concrete hopper 2 and powder accelerator hopper 3 are set close to the first chassis place, concrete hopper and powder accelerator hopper are all obliquely installed, conveying auger drives rotation by the first motor 1 be arranged on the first chassis, the end of conveying auger is arranged on above feeding hopper 14.
Liquid accelerating agent feed system comprises liquid accelerating agent feed bin, liquid accelerating agent pump and high-pressure water pipe, high-pressure water pipe is arranged on the second chassis by fixed mount, liquid accelerating agent pump is arranged on the side on the second chassis, liquid accelerating agent feed bin is arranged on the top of liquid accelerating agent pump, liquid accelerating agent delivery side of pump is communicated with high-pressure water pipe, liquid accelerating agent pump is connected with control cabinet, liquid accelerating agent is pumped in high-pressure water pipe, in high-pressure water pipe and after water mixing, flow to nozzle place by pipeline, at nozzle, place mixes with concrete mix.
Drive sprocket parts comprise support, drive sprocket 7 and drive sprocket adjuster, active bracket vertically arranges on described chassis, the axle of drive sprocket is horizontally fixed on support, is connected, is arranged on the side of drive sprocket for the drive sprocket adjuster adjusting drive sprocket tensioning with drive sprocket; Described driven sprocket parts comprise support, driven sprocket 8 and driven sprocket adjuster, driven carriage vertically arranges on described chassis, the axle of driven sprocket is horizontally fixed on support, and driven sprocket adjuster is connected with driven sprocket, is arranged on the side of driven sprocket.
Tandem piston parts comprise cuff link 9, piston ring and seal, and seal is fixed on the centre of cuff link by piston ring, and multiple piston ring is connected into a circle by cuff link 9 and connects drive sprocket 7 and driven sprocket 8.
High-pressure water pipe interlude bends, and its water inlet and delivery port are in the same side on described chassis, and water inlet is upper.
Arrange the second motor 6 and the second motor reducer at drive sprocket 7 place, the second motor is connected with control cabinet.
Embodiment 1
Control cabinet controls the first motor and rotates, first driven by motor conveying auger rotates around the axis of conveying auger, concrete mix is added in concrete hopper 2, powder accelerator is added in powder accelerator hopper 3, the two enters into the feeding hopper 14 of spraying system in conveying auger 4 after mixing, control cabinet controls the second motor and rotates, second motor drives drive sprocket to rotate by the second motor reducer, and then drive tandem piston parts to rotate, concrete mix enters in gas-tight silo from feeding hopper under the movement of tandem piston parts, high-pressure blast passes through air intake, concrete mix blows out by the second blast pipe and the 3rd blast pipe from discharging opening 13, the concrete mix that can not blow out is discharged by tailing air deflector, the water that the concrete mix (being connected by flexible pipe between discharging opening with nozzle) be blown from discharging opening and high-pressure water pipe exit are flowed out converges at nozzle, be ejected into by spray plane.
Embodiment 2
Control cabinet controls the first motor and rotates, first driven by motor conveying auger rotates around the axis of conveying auger, concrete is added in concrete hopper 2, concrete is transported in the feeding hopper 14 in spraying system by conveying auger 4, control cabinet 17 controls the second motor and rotates, second motor drives drive sprocket to rotate by the second motor reducer, and then drive tandem piston parts to rotate, concrete mix enters in gas-tight silo from feeding hopper under the movement of tandem piston parts, high-pressure blast passes through air intake, concrete mix blows out by the second blast pipe and the 3rd blast pipe from discharging opening 13, the concrete mix that can not blow out is discharged by tailing air deflector, liquid accelerating agent feed bin holds liquid accelerating agent, flow in liquid accelerating agent supply pump, water under high pressure is entered by water inlet, liquid accelerating agent supply pump exit connects with high-pressure water pipe, control cabinet controls liquid accelerating agent pump and pumps in high-pressure water pipe by liquid accelerating agent, the water that the concrete mix (being connected by flexible pipe between discharging opening with nozzle) be blown from discharging opening and high-pressure water pipe exit are flowed out and liquid accelerating agent mixture converge at nozzle, are ejected into by spray plane.
By adding powder accelerator in concrete mix, achieve the injection of siccative; By the use of liquid accelerating agent feed system, achieve the injection of wet feed, dual-use, of many uses.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. quantitatively add an accelerating admixture Wet-dry concrete sprayer, it is characterized in that, comprise concrete mix induction system, for the spraying system of sprayed mortar mix and liquid accelerating agent feed system; The end of concrete mix induction system is arranged on the top of spraying system, and liquid accelerating agent feed system is arranged on the side of spraying system;
Concrete mix induction system, spraying system and liquid accelerating agent feed system are all arranged on chassis, and chassis is arranged with running gear, and concrete mix induction system tilts upward setting;
Spraying system comprises for the injection equipment of sprayed mortar mix with for providing the connecting gear of power for injection equipment; Injection equipment comprises feeding hopper, gas-tight silo and tailing air deflector, and gas-tight silo is horizontally set on the outside of upper end tandem piston parts, and feeding hopper is vertically arranged on the side of gas-tight silo, and tailing air deflector is arranged on the opposite side of gas-tight silo; The discharge nozzle communicated with gas-tight silo is set at gas-tight silo center vertical, air intake is set at the upper horizontal of gas-tight silo, the 3rd blast pipe is set between tailing air deflector and air intake.
2. a kind of quantitatively interpolation accelerating admixture Wet-dry concrete sprayer as claimed in claim 1, it is characterized in that, described chassis comprises the first chassis and the second chassis, the distance of the first chassis and the setting of the second interval, chassis, described concrete mix induction system is inclined on the first chassis, arranges the first row walking system under the first chassis; Described spraying system and liquid accelerating agent feed system are arranged on the second chassis, arrange the second running gear under the second chassis.
3. a kind of quantitatively interpolation accelerating admixture Wet-dry concrete sprayer as claimed in claim 1, it is characterized in that, described connecting gear comprises drive sprocket parts, driven sprocket parts and tandem piston parts, drive sprocket parts and driven sprocket parts are vertically arranged on the two ends on chassis respectively, and tandem piston parts are arranged between drive sprocket parts and driven sprocket parts.
4. a kind of quantitatively interpolation accelerating admixture Wet-dry concrete sprayer as claimed in claim 2, it is characterized in that, described concrete mix induction system comprises the conveying auger be inclined on the first chassis, arrange concrete hopper and powder accelerator hopper in the front end of conveying auger, conveying auger is driven by the first motor be arranged on the first chassis and rotates.
5. a kind of quantitatively interpolation accelerating admixture Wet-dry concrete sprayer as claimed in claim 1, it is characterized in that, described liquid accelerating agent feed system comprises liquid accelerating agent feed bin, liquid accelerating agent pump and high-pressure water pipe, liquid accelerating agent pump is arranged on the side on described chassis, liquid accelerating agent feed bin is arranged on the top of liquid accelerating agent pump, and liquid accelerating agent pump is communicated with high-pressure water pipe.
6. a kind of quantitatively interpolation accelerating admixture Wet-dry concrete sprayer as claimed in claim 3, it is characterized in that, described drive sprocket parts comprise support, drive sprocket and drive sprocket adjuster, active bracket vertically arranges on described chassis, the axle of drive sprocket is horizontally fixed on support, drive sprocket adjuster is connected with drive sprocket, is arranged on the side of drive sprocket; Described driven sprocket parts comprise support, driven sprocket and driven sprocket adjuster, driven carriage vertically arranges on described chassis, the axle of driven sprocket is horizontally fixed on support, and driven sprocket adjuster is connected with driven sprocket, is arranged on the side of driven sprocket.
7. a kind of quantitatively interpolation accelerating admixture Wet-dry concrete sprayer as claimed in claim 1, it is characterized in that, described chassis arranges control cabinet, and control cabinet is individually connected with the power source of described liquid accelerating agent feed system with described concrete mix induction system, described spraying system.
8. a kind of quantitatively interpolation accelerating admixture Wet-dry concrete sprayer as claimed in claim 6, it is characterized in that, described tandem piston parts comprise cuff link, piston ring and seal, seal is fixed on the centre of cuff link by piston ring, and multiple piston ring is connected into one by cuff link and encloses the drive sprocket described in connecting and driven sprocket.
9. a kind of quantitatively interpolation accelerating admixture Wet-dry concrete sprayer as claimed in claim 1, is characterized in that, arrange the second blast pipe in the outlet of described discharge nozzle.
10. a kind of quantitatively interpolation accelerating admixture Wet-dry concrete sprayer as claimed in claim 1, is characterized in that, outside described gas-tight silo, arrange condensation pipe.
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| CN201510304298.XA CN104948205B (en) | 2015-06-05 | 2015-06-05 | Accelerating agent quantitatively-adding dry-wet dual purpose concrete spraying machine |
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| CN201510304298.XA CN104948205B (en) | 2015-06-05 | 2015-06-05 | Accelerating agent quantitatively-adding dry-wet dual purpose concrete spraying machine |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105888695A (en) * | 2016-06-16 | 2016-08-24 | 北京新桥技术发展有限公司 | U-shaped cavity rotor type concrete spraying machine for dry spraying and wet spraying |
| CN106593475A (en) * | 2016-12-29 | 2017-04-26 | 中国人民解放军63926部队 | Dry and wet dual-purpose integral concrete jetting vehicle with demountable raw material trailer |
| CN109026072A (en) * | 2018-09-30 | 2018-12-18 | 四川蓝海智能装备制造有限公司 | The concrete spraying trolley of mixing can be continuously stirred |
| CN109610460A (en) * | 2018-11-27 | 2019-04-12 | 中国电建市政建设集团有限公司 | A kind of three-graded concrete quickly puts in storage system and working method |
| CN110441103A (en) * | 2019-08-05 | 2019-11-12 | 苏州市建设工程质量检测中心有限公司 | A kind of small productivity concrete sprayer and test method of construction simulation operating condition |
| CN110700591A (en) * | 2019-10-15 | 2020-01-17 | 童友丹 | Multipurpose nozzle for spraying concrete |
| CN112554566A (en) * | 2020-11-18 | 2021-03-26 | 南京弘图华智科技有限公司 | Dry-spraying concrete spray gun with intelligent positioning, pressure control and stirring functions |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105888695A (en) * | 2016-06-16 | 2016-08-24 | 北京新桥技术发展有限公司 | U-shaped cavity rotor type concrete spraying machine for dry spraying and wet spraying |
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| CN109026072B (en) * | 2018-09-30 | 2024-05-31 | 四川蓝海智能装备制造有限公司 | Concrete wet spraying trolley capable of continuously stirring and mixing materials |
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| CN110441103A (en) * | 2019-08-05 | 2019-11-12 | 苏州市建设工程质量检测中心有限公司 | A kind of small productivity concrete sprayer and test method of construction simulation operating condition |
| CN110700591A (en) * | 2019-10-15 | 2020-01-17 | 童友丹 | Multipurpose nozzle for spraying concrete |
| CN112554566A (en) * | 2020-11-18 | 2021-03-26 | 南京弘图华智科技有限公司 | Dry-spraying concrete spray gun with intelligent positioning, pressure control and stirring functions |
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| CN104948205B (en) | 2017-01-18 |
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