CN214786066U - Concrete spraying nozzle - Google Patents
Concrete spraying nozzle Download PDFInfo
- Publication number
- CN214786066U CN214786066U CN202120584715.1U CN202120584715U CN214786066U CN 214786066 U CN214786066 U CN 214786066U CN 202120584715 U CN202120584715 U CN 202120584715U CN 214786066 U CN214786066 U CN 214786066U
- Authority
- CN
- China
- Prior art keywords
- pipeline
- concrete
- auxiliary agent
- spiral
- injection device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000004567 concrete Substances 0.000 title claims abstract description 47
- 238000005507 spraying Methods 0.000 title claims description 23
- 238000002347 injection Methods 0.000 claims abstract description 27
- 239000007924 injection Substances 0.000 claims abstract description 27
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 24
- 239000011148 porous material Substances 0.000 claims abstract description 24
- 238000007599 discharging Methods 0.000 claims abstract description 9
- 239000011378 shotcrete Substances 0.000 claims description 12
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000007921 spray Substances 0.000 abstract description 11
- 238000010276 construction Methods 0.000 abstract description 9
- 241000883990 Flabellum Species 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000000889 atomisation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Images
Abstract
The utility model discloses a spray concrete shower nozzle, including charge-in pipeline (1), auxiliary agent pipeline (2), helical fan blade (3), injection apparatus (4), connecting tube (5) and ejection of compact pipeline (6). The connecting pipeline (5) is connected with the discharging pipeline (6) and the feeding pipeline (1); the auxiliary agent conveying pipeline (2) is connected with the injection device (4); the feeding pipeline (1) is connected with the injection device (4) through a spiral fan blade (3); the spiral fan blades (3) are spirally and uniformly arranged; and an annular inclined pore passage is arranged in the injection device (4), and the pore passage is connected with the auxiliary agent conveying pipeline (2). The utility model discloses the shower nozzle makes the concrete take place rotary motion through rotatory flabellum, applys supplementary revolving force through injection apparatus again, and when twice rotary motion made accelerator and concrete intensive mixing, increased concrete injection's speed and even degree, improved the efficiency of construction.
Description
Technical Field
The utility model belongs to the technical field of the concrete sprays, concretely relates to concrete sprays shower nozzle.
Background
The sprayed concrete construction is a construction method for spraying or pouring concrete by using a pressure spray gun, and the method is quick and simple in construction and is widely applied to engineering projects such as municipal administration, tunnels, mines and the like. The working principle is as follows: the ready-mixed concrete is pumped to a spray head and mixed with high-pressure air carrying an accelerating agent, and the concrete is sprayed out at high speed under the action of the high-pressure air. Unfortunately, the phenomena of insufficient and uniform mixing of the gas and the concrete and insufficient and uniform mixing of the auxiliary agent and the concrete often occur in the concrete spraying process. The sprayed concrete has poor and uneven atomization effect due to the fact that the gas and the concrete are not mixed uniformly enough, the thickness of a wall surface concrete layer is difficult to control, and spraying efficiency and quality are affected; the insufficient and uniform mixing of the auxiliary agent and the concrete can cause different setting times of the sprayed concrete and influence the construction quality. The existing concrete sprayer is not perfect aiming at solving the problems of uneven atomization, uneven mixing and the like.
Disclosure of Invention
In view of this, the utility model aims at providing a spray concrete shower nozzle, this concrete shower nozzle's design has increased the speed and the even degree that the concrete sprays, has increased the mixed degree of consistency of accelerator and concrete, has avoided stifled pipe, the spray phenomenon such as inhomogeneous that easily appears in the spray concrete construction, has improved the efficiency of construction.
In order to achieve the above object, the utility model provides a following technical scheme:
a spray nozzle for spraying concrete is composed of feeding pipeline, assistant delivering pipeline, spiral blades, sprayer, connecting pipeline and discharging pipeline. Wherein the connecting pipeline is connected with the feeding pipeline and the discharging pipeline; the feeding pipeline is provided with an injection device, and the auxiliary agent conveying pipeline is connected with the injection device; the feeding pipeline is connected with the injection device through a spiral fan blade; the spiral fan blades are spirally and uniformly arranged; an annular inclined pore passage is arranged in the injection device, and the pore passage is connected with an auxiliary agent conveying pipeline; the injection device is positioned in the feeding pipeline and is divided into two parts, one part is connected with the auxiliary agent conveying pipeline, and the other part is provided with a plurality of inclined pore channels.
The utility model discloses in, charge-in pipeline one end with send the thick liquid pipeline to be connected, the concrete is followed and is sent thick liquid pipeline to get into behind the shower nozzle through spiral flabellum, because the spiral of flabellum arranges, the motion of concrete is changed forward into rotatory forward by the straight line. The auxiliary agent conveying pipeline is connected with an external high-pressure gas pipeline, high-pressure gas carrying an accelerator is input into the spraying device, the high-pressure gas is sprayed out through the inclined pore channel, the high-pressure gas can provide rotary assistance for concrete flowing through the spraying device due to the annular inclined arrangement of the pore channel, the concrete generates secondary rotation, and the concrete is sprayed out at a high speed through the connecting pipeline and the discharging pipeline.
Furthermore, the spiral fan blades are 3 blades which are uniformly distributed between the feeding pipeline and the auxiliary agent injection device, each blade is in a spiral shape, and concrete can form a rotational flow after passing through the spiral fan blades.
Furthermore, the spraying device is a spiral spraying device inside the spray head, the middle pore passage is overlapped with the axis of the feeding pipeline, and an inclination angle of 10-20 degrees is arranged between the opening direction of the peripheral pore passages and the axis direction of the feeding pipeline. High-pressure gas and an accelerator enter from an auxiliary agent conveying pipeline and can form rotational flow after passing through a spraying device.
Further, the pore passage of the spiral spraying device is the same as the rotation direction of the spiral fan blade.
Compared with the prior art, the utility model has the advantages that the spiral arrangement of the fan blades enables the concrete to form a rotational flow after passing through the fan blades, and the concrete rotates for the first time; and the concrete is rotated for the second time through the inclined arrangement of the pore canal of the spraying device, so that the spraying is accelerated. Such setting has played accelerator homodisperse and has added, concrete and auxiliary agent mix more abundant, the effect of concrete with higher speed, and high-speed rotary motion not only makes the material difficult for blockking up and spun material more even at ejection of compact pipeline. The design improves the construction efficiency and has strong practicability.
Drawings
FIG. 1 is a schematic view of the innovative structure of the present invention
FIG. 2 is a sectional view of the inventive structure of the present invention
FIG. 3 is an enlarged schematic view of the air injection device (4)
In fig. 1: 1. a feed conduit; 2. an additive delivery conduit; 3. a helical fan blade; 4. an injection device; 5. connecting a pipeline; 6. a discharge pipeline.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
As shown in fig. 1 and 2, a shotcrete nozzle comprises a spraying and feeding pipeline 1, an auxiliary agent conveying pipeline 2, a spiral fan blade 3, a spraying device 4, a connecting pipeline 5 and a discharging pipeline 6; the connecting pipeline 5 is connected with the discharging pipeline 6 and the feeding pipeline 1; the auxiliary agent conveying pipe 2 is connected with the injection device 4; the feeding pipeline 1 is connected with the injection device 4 through a spiral fan blade 3; the spiral fan blades 3 have 3 blades in total, are spiral and are uniformly arranged; an annular inclined pore channel is arranged in the injection device 4 and connected with the auxiliary agent conveying pipeline, the axis of the middle pore channel is overlapped with the axis of the feeding pipeline 1, and an inclination angle of 10-20 degrees is formed between the annular arrangement and the arrangement direction of the peripheral pore channels and the axis direction of the feeding pipeline 1. The spiral fan blades and the spiral air injection device have the same direction.
The specific injection process is as follows: one end of the feeding pipeline 1 is connected with the slurry feeding pipeline, concrete enters the feeding pipeline 1 along the slurry feeding pipeline and then passes through the spiral fan blades 3, and due to the spiral arrangement of the fan blades, the moving mode of the concrete is changed from straight line forward to rotary forward. The auxiliary agent conveying pipeline 2 is connected with an external high-pressure gas pipeline, high-pressure gas carrying an accelerating agent is input into the spraying device 4, the high-pressure gas is sprayed out through the inclined pore channel, the high-pressure gas can provide rotary assistance for concrete flowing through the spraying device due to the annular inclined arrangement of the pore channel, the concrete rotates for the second time, and the concrete is sprayed out at a high speed through the connecting pipeline 5 and the discharging pipeline 6.
Further, as shown in fig. 1 and 2, the helical fan blades 3 have 3 blades, and are uniformly distributed between the feeding pipe 1 and the auxiliary agent injection device 4, and each blade is helical. Such an arrangement may impart rotational motion to the concrete.
Further, as shown in fig. 3, the spiral injection device 4 is divided into two parts, the lower half part is connected with the auxiliary agent conveying pipeline 2, the upper half part is provided with an inclined hole channel, the middle hole channel is overlapped with the axis of the feeding pipeline 1, the hole channels on the periphery are annularly arranged, and an inclination angle of 10-20 degrees is arranged between the opening direction and the axis direction of the feeding pipeline 1. The high-pressure gas sprayed out of the annular inclined pore channel can not only accelerate the concrete, but also enable the concrete to generate secondary rotation movement.
Further, the annular pore channel of the injection device 4 is the same as the rotation direction of the spiral fan blade 3, so that the secondary rotation acceleration of the concrete is ensured.
Has the advantages that: the spiral spraying inside the spraying device can enable the setting accelerator to be uniformly dispersed and added, and the effect of enabling the concrete to rotate for the second time is achieved through the rotary assistance of the air guide channels. Such setting up makes concrete and accelerator obtain more intensive mixing, and high-speed rotary motion not only makes the material difficult jam in ejection of compact pipeline, makes shower nozzle spun material more even moreover. The design improves the construction efficiency and has strong practicability.
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 (8)
1. A shotcrete nozzle is characterized in that: comprises a feeding pipeline (1), an auxiliary agent conveying pipeline (2), a spiral fan blade (3), a spraying device (4), a connecting pipeline (5) and a discharging pipeline (6); the connecting pipeline (5) is connected with the discharging pipeline (6) and the feeding pipeline (1); the auxiliary agent conveying pipe (2) is connected with the injection device (4); the feeding pipeline (1) is connected with the injection device (4) through a spiral fan blade (3); the spiral fan blades (3) are spirally and uniformly arranged; and an annular inclined pore passage is arranged in the injection device (4), and the pore passage is connected with the auxiliary agent conveying pipeline (2).
2. A shotcrete nozzle as claimed in claim 1, wherein: the concrete can form rotational flow after passing through the spiral fan blade (3).
3. A shotcrete nozzle as claimed in claim 2, wherein: the spiral fan blades (3) are 3 blades which are uniformly distributed between the feeding pipeline (1) and the auxiliary agent injection device (4), and each blade is spiral.
4. A shotcrete nozzle as claimed in claim 1, wherein: the spiral spraying device (4) is divided into two parts, one part is connected with the auxiliary agent conveying pipeline (2), and the other part is provided with an annular inclined pore channel.
5. A shotcrete nozzle as claimed in claim 1, wherein: the jet device (4) is a spiral jet device in the nozzle, the middle pore canal is superposed with the axis of the feed pipeline (1), the peripheral pore canals are annularly arranged, and an inclination angle of 10-20 degrees is arranged between the opening direction and the axis direction of the feed pipeline (1).
6. A shotcrete nozzle as claimed in claim 5, wherein: the high-pressure gas and the accelerator can form rotational flow through the spraying device (4).
7. A shotcrete nozzle as claimed in claim 4, wherein: the annular pore canal of the spiral injection device (4) and the rotation direction of the spiral fan blade (3) are the same.
8. A shotcrete nozzle as claimed in claim 1, wherein: the auxiliary agent conveying pipeline (2) conveys high-pressure gas and an accelerating agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120584715.1U CN214786066U (en) | 2021-03-19 | 2021-03-19 | Concrete spraying nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120584715.1U CN214786066U (en) | 2021-03-19 | 2021-03-19 | Concrete spraying nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214786066U true CN214786066U (en) | 2021-11-19 |
Family
ID=78666518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120584715.1U Expired - Fee Related CN214786066U (en) | 2021-03-19 | 2021-03-19 | Concrete spraying nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214786066U (en) |
-
2021
- 2021-03-19 CN CN202120584715.1U patent/CN214786066U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211119 |