CN210564568U - Novel spray head for spraying concrete - Google Patents
Novel spray head for spraying concrete Download PDFInfo
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- CN210564568U CN210564568U CN201921600083.2U CN201921600083U CN210564568U CN 210564568 U CN210564568 U CN 210564568U CN 201921600083 U CN201921600083 U CN 201921600083U CN 210564568 U CN210564568 U CN 210564568U
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Abstract
The utility model provides a novel spray head for spraying concrete, which comprises a mixing pipeline and a discharge pipeline, wherein one end of the mixing pipeline is connected with one end of a concrete conveying pipeline; the other end of the mixing pipeline is connected with one end of the discharging pipeline; the side wall of the mixing pipeline is provided with an interface for injecting an accelerating agent; the utility model discloses the shower nozzle that has special construction hybrid pipeline is more than traditional double-layered shell type shower nozzle resilience reduction more than 50% under the same condition, perhaps accelerator use amount reduces 1/3 still more, and the phenomenon of stifled pipe or water clock is stopped completely, and the frequency of occurrence is zero.
Description
Technical Field
The utility model belongs to the technical field of the concrete sprayer, concretely relates to novel shower nozzle is used to spray concrete.
Background
With the increase of various pollution and harmful emissions at present, the treatment of air pollution becomes an important problem in social development, wherein concrete spraying construction is also one of pollution sources causing air pollution, and the concrete spraying construction is developed for decades and is generally applied to rock roadway support of building foundation pits, subways, slope protection, expressways, high-speed railway tunnels and mine engineering.
The existing concrete spraying construction has a plurality of problems of pipe blockage of concrete spraying, pulse dripping leakage of discharged materials and the like no matter a large-scale trolley or a small-scale dry-wet spraying machine is used, the construction and the quality of the sprayed concrete are seriously influenced, and the existing sprayed concrete accelerator is only added through a pipeline, so that although the sprayed concrete accelerator is uniformly mixed, the pressure of the sprayed concrete at a spray head is attenuated, and the accelerator is reacted with cement to form quick-setting adhesion, so that the pipe blockage and the pulse dripping leakage frequently occur along with the disturbance of various main and objective factors in the construction.
Disclosure of Invention
An object of the utility model is to provide a novel shower nozzle is used to spray concrete has solved the decay of current spray concrete in shower nozzle department pressure and the rapid hardening adhesion of accelerator and cement reaction, leads to stifled pipe, pulse water clock to take place frequently along with the disturbance of various subjective and objective factors in the construction.
In order to achieve the above purpose, the utility model discloses a technical scheme is:
the utility model provides a novel spray head for spraying concrete, which comprises a mixing pipeline and a discharge pipeline, wherein one end of the mixing pipeline is connected with one end of a concrete conveying pipeline; the other end of the mixing pipeline is connected with one end of the discharging pipeline; and the side wall of the mixing pipeline is provided with an interface for injecting an accelerating agent.
Preferably, the air outlets include at least two rows and are symmetrically arranged, each air outlet includes at least one air outlet, and when the air outlets are a plurality of air outlets, the air outlets are arranged at intervals.
Preferably, each of said interfaces is arranged in a tangential or normal direction to the side wall of the mixing duct.
Preferably, an inclination angle is arranged between the opening direction of each interface and the axial direction of the mixing pipeline, and the inclination angle is 30-90 degrees.
Preferably, the inclination angle between the opening direction of each port and the axial direction of the mixing pipeline is 45-60 degrees.
Preferably, the diameter of the interface is 10-50 mm.
Preferably, the length of the mixing pipeline is 10-90 cm, and the diameter of the mixing pipeline is 30-80 mm.
Preferably, the free end of the discharge pipeline is a conical nozzle; the length of the discharge pipeline is 50-100 cm, and the diameter is 30-80 mm.
Preferably, the mixing pipe and the discharge pipe are detachable.
Preferably, the mixing duct and the discharge duct are of one-piece construction.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model provides a pair of novel shower nozzle for shotcrete, after plastic concrete entered the mixing duct through concrete conveying pipeline transport, take wind atomization accelerating agent to pass through the interface along the mixing duct inner wall, the oblique cutting entered in the inner chamber of mixing duct, mix along the concrete flow direction, take the higher injection pressure of wind atomization accelerating agent in addition, can make accelerating agent and concrete reach intensive mixing, improved the utilization ratio of accelerating agent, make concrete and atomization accelerating agent effect efficient, reduced the resilience of shotcrete simultaneously, and effectively improved the intensity of shotcrete; the phenomena of pipe blockage and pulse dripping during the injection construction of the concrete are avoided; compared with the traditional jacket type spray head, the spray head with the mixing pipeline with the special structure has the advantages that the rebound is reduced by more than 50 percent under the same condition, or the using amount of the accelerator is reduced by more than 1/3, the phenomenon of pipe blockage or dripping is completely avoided, and the occurrence frequency is zero.
Furthermore, the connector is arranged along the tangent line or the normal line of the side wall of the mixer, and can provide wind power for rotating and stirring the concrete added with the accelerating agent in the mixer, thereby achieving the purposes of accelerating setting, reducing resilience and preventing the dripping and leakage of the anti-blocking pipe.
Furthermore, the opening angle of the interface is set to be 30-90 degrees, and the concrete added with the accelerator is stirred and mixed to the maximum extent through a plurality of pneumatic cuts at different angles.
Drawings
FIG. 1 is a schematic view of a novel nozzle for spraying concrete according to the present invention;
3 FIG. 3 2 3 is 3 a 3 sectional 3 view 3 A 3- 3 A 3; 3
Wherein, 1, concrete conveying pipeline 2, mixing pipeline 201, interface 3, discharge pipeline.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 to 2, the novel nozzle for spraying concrete provided by the present invention comprises a mixing pipeline 2 and a discharge pipeline 3, wherein one end of the mixing pipeline 2 is connected with one end of a concrete delivery pipeline 1; the other end of the mixing pipeline 2 is connected with one end of the discharge pipeline 3.
Set up at least a set of area wind atomization accelerating agent interface on mixing tube 2's the lateral wall, a set of area wind atomization accelerating agent interface includes two rows of area wind atomization accelerating agent interfaces, and every row of area wind atomization accelerating agent interface includes the interface 201 of a plurality of interval arrangement.
The two rows of interfaces with the wind atomization setting accelerator are symmetrically arranged.
Each of said interfaces 201 is arranged in a tangential or normal direction to the side wall of the mixing duct 2.
An inclination angle is arranged between the opening direction of each interface 201 and the axial direction of the mixing pipeline 2, and the inclination angle is 30-90 degrees.
The diameter of the interface 201 is 10-50 mm.
The length of the mixing pipeline 2 is 10-90 cm, and the diameter is 30-80 mm.
One end of the discharge pipeline 3 is a conical pipe orifice, the length of which is 50-100 cm, and the diameter of which is 30-80 mm.
Examples
The utility model provides a novel spray head for spraying concrete, which comprises a mixing pipeline 2 and a discharge pipeline 3, wherein the mixing pipeline 2 is connected with one end of a concrete conveying pipeline 1; the other end of the mixing pipeline 2 is connected with one end of the discharging pipeline 3.
Two rows of air atomization accelerating agent interfaces are arranged on the side wall of the mixing pipeline 2 and are symmetrically arranged.
Each interface 201 is arranged in a tangential or normal direction to the side wall of the mixing duct 2.
An inclination angle is arranged between the opening direction of each interface 201 and the axial direction of the mixing pipeline 2, and the inclination angle is 30-90 degrees.
Preferably, the inclination angle is 45 °.
Each port 201 is 30mm in diameter.
The mixing duct 2 has a length of 50cm and a diameter of 70 mm.
One end of the discharge pipeline 3 is a small opening, the length of the discharge pipeline is 80cm, and the diameter of the discharge pipeline is 70 mm.
Preferably, the mixing pipe and the discharge pipe are detachable.
The using process specifically comprises the following steps:
the atomized accelerating agent delivery pipe is connected with the interface 201, and the novel spray head is connected with the concrete delivery pipeline. After plastic concrete is conveyed into a spray head through a concrete conveying pipeline, the air atomization setting accelerator is obliquely conveyed into the inner cavity of the mixing pipeline 2 through the connector 201 along the inner wall of the mixing pipeline 2 and is mixed along the flowing direction of the concrete, and the air atomization setting accelerator with higher spraying pressure is added, so that the setting accelerator and the concrete can be fully mixed, the utilization rate of the setting accelerator is improved, the effect efficiency of the concrete and the atomization setting accelerator is high, the rebound of sprayed concrete is reduced, and the strength of the sprayed concrete is effectively improved; the phenomena of pipe blockage and pulse dripping during the injection construction of the concrete are avoided.
The pipe diameter of the mixing pipeline 2 is determined according to the size of the spray head; the length of the mixing pipe 2 is selected in accordance with the injection volume of the injection machine and the state of the transported material.
The above contents are only for explaining the technical idea of the present invention, and the protection scope of the present invention cannot be limited thereby, and any modification made on the basis of the technical solution according to the technical idea of the present invention all fall within the protection scope of the claims of the present invention.
Claims (10)
1. The novel spray head for spraying concrete is characterized by comprising a mixing pipeline (2) and a discharge pipeline (3), wherein one end of the mixing pipeline (2) is connected with one end of a concrete conveying pipeline (1); the other end of the mixing pipeline (2) is connected with one end of the discharging pipeline (3); the side wall of the mixing pipeline (2) is provided with an interface (201) for injecting an accelerating agent.
2. Novel nozzle for spraying concrete according to claim 1, characterized in that the ports (201) comprise at least two rows and are symmetrically arranged, each air outlet comprises at least one port, and when a plurality of ports are provided, the plurality of ports are arranged at intervals.
3. Novel nozzle for shotcrete according to claim 1, wherein each of said joints (201) is arranged along a tangent or normal to the side wall of the mixing duct (2).
4. Novel nozzle for shotcrete according to claim 1, wherein an inclination angle is provided between the opening direction of each port (201) and the axial direction of the mixing pipe (2), said inclination angle being between 30 ° and 90 °.
5. Novel nozzle for shotcrete according to claim 4, wherein the inclination angle between the opening direction of each port (201) and the axial direction of the mixing duct (2) is 45 ° to 60 °.
6. The novel nozzle for spraying concrete according to claim 1, wherein the diameter of the interface (201) is 10-50 mm.
7. The novel nozzle for spraying concrete according to claim 1, wherein the length of the mixing pipe (2) is 10-90 cm, and the diameter is 30-80 mm.
8. Novel nozzle for spraying concrete according to claim 1, characterized in that the free end of the discharge pipe (3) is a tapered nozzle; the length of the discharge pipeline (3) is 50-100 cm, and the diameter is 30-80 mm.
9. Novel nozzle for spraying concrete according to claim 1, characterized in that the mixing pipe (2) and the discharge pipe (3) are of a detachable construction.
10. Novel nozzle for spraying concrete according to claim 1, characterized in that the mixing pipe (2) and the discharge pipe (3) are of one-piece construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921600083.2U CN210564568U (en) | 2019-09-24 | 2019-09-24 | Novel spray head for spraying concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921600083.2U CN210564568U (en) | 2019-09-24 | 2019-09-24 | Novel spray head for spraying concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210564568U true CN210564568U (en) | 2020-05-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921600083.2U Active CN210564568U (en) | 2019-09-24 | 2019-09-24 | Novel spray head for spraying concrete |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210564568U (en) |
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2019
- 2019-09-24 CN CN201921600083.2U patent/CN210564568U/en active Active
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