CN205277447U - Concrete wet blasting machine spray gun - Google Patents
Concrete wet blasting machine spray gun Download PDFInfo
- Publication number
- CN205277447U CN205277447U CN201620023123.1U CN201620023123U CN205277447U CN 205277447 U CN205277447 U CN 205277447U CN 201620023123 U CN201620023123 U CN 201620023123U CN 205277447 U CN205277447 U CN 205277447U
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- China
- Prior art keywords
- spray gun
- concrete
- air nozzle
- blasting machine
- wet blasting
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Abstract
The utility model relates to a tunnel, mining machinery field especially relate to concrete wet blasting machine, concretely relates to concrete wet blasting machine spray gun. A concrete wet blasting machine spray gun, it is main including spray gun body (1), air nozzle (2), feed inlet (3), discharge gate (4), under the effect of air nozzle (2) that a plurality of ring spray gun bodys (1) slope was arranged, form high -speed spiral air current in spray gun body (1), the concrete is got into in spray gun body (1) by feed inlet (3), the acceleration of concrete has not only been accomplished, and make water, the aggregate, the accelerator mixes more evenly, and then it is more even to spout the surface strength, reduce the rebound degree, reach better whitewashing effect. A concrete wet blasting machine spray gun application method simple, need not to carry on again operation training, but the wide application use in the supporting of wet blastings such as concrete machines, the bolting and shotcreting whitewashing that is particularly useful for tunnel, mine etc. Is used.
Description
Technical field:
The utility model relates to tunnel, mining machinery field, particularly relates to concrete spraying machine, is specifically related to a kind of concrete spraying machine spray gun.
Background technology
Roadway support needs to use anchor jet technology mostly, and the equipment that shotcrete uses is concrete spraying machine. Wet spray machine is taking down-hole high pressure air as power, concrete is sent by wind or is pumped to spray gun feed mouth, ejects, be attached to surface, tunnel after raising speed by spray gun high-pressure blast, forming ore deposit pressure carrying structure after solidifying, this is current underground coal mine spray operation major equipment and method. Structure is firmly carried for being formed, wet spray machine spray gun must possess that resistance is little, outputting power strong, can assist the advantages such as ready-mixed concrete, and spray gun functional structure conventional at present is single, it mostly is the simple wet spray machine accessory that pneumatic power is provided, easily occur that concrete is detained the phenomenon in stifled hole, cause concrete mixing uneven, the situation whitewashed and be short of power.
Summary of the invention:
For the problems referred to above, the utility model aim to provide a kind of improvement, resistance is little, outputting power is strong, can assist the wet spray machine spray gun of ready-mixed concrete. Solving the technical scheme that above technical problem adopts is: a kind of concrete spraying machine spray gun, comprises lance tube body, air nozzle, opening for feed, discharge port; Described lance tube body is conical gradual change tubular structure; Described air nozzle is hollow tubular structure; Described air nozzle is embedded in spray gun tube wall.
A kind of concrete spraying machine spray gun described in the utility model, it is characterised in that: air nozzle 2 is annular spread around lance tube body 1 medullary ray.
A kind of concrete spraying machine spray gun described in the utility model, it is characterised in that: the medullary ray of air nozzle 2, with being 15 �� through the plane included angle of embedding point with medullary ray, is being 20 �� through plane inner projection and the centerlines of embedding point with medullary ray;
The difference of a kind of concrete spraying machine spray gun described in the utility model and existing wet spray machine spray gun is, air nozzle medullary ray be that 15 �� of angles are in tilted layout and non-intersect with lance tube body medullary ray through embedding point and the plane of medullary ray; This scheme can make to make to be formed in lance tube body high-speed screw air-flow, spiral air flow concrete is mixed in spray gun evenly; A kind of concrete spraying machine spray gun described in the utility model has multiple air nozzles of annular spread, and concrete accelerates ejection after entering lance tube body under the high-pressure blast effect of air nozzle.
The advantage that the utility model has and positively effect be: supporting means essential when tunnel bolting and shotcreting is the main roadway support in down-hole, and to whitewash be important step wherein. Traditional spray gun air nozzle medullary ray overlaps with lance tube body tangent plane, causes power path to intersect during the air-out simultaneously of multiple air nozzle, and while providing power for concrete, itself also becomes one brattice, is flowed into by concrete thereafter and forms resistance. A kind of concrete spraying machine spray gun described in the utility model has the air nozzle that multiple ring spray gun barrel body is in tilted layout, when ensure that enough high-pressure blast power, air nozzle and its place lance tube body tangent plane are tilted certain angle, can make to be formed in lance tube body high-speed screw air-flow, not only complete concrete acceleration, and make the mixing of water, aggregate, accelerating chemicals more even, and then spray plane intensity is more even, reduce rebound degree, reach better gunite effect. Concrete spraying machine spray gun using method after improvement is simple, it is not necessary to re-starts training on operation, can be widely used in supporting the use of the wet spray machines such as concrete, and the bolting and shotcreting whitewashing being particularly useful for tunnel, mine etc. uses.
Accompanying drawing illustrates:
Fig. 1 is the tomograph of a kind of concrete spraying machine spray gun of the utility model;
Fig. 2 is the diagrammatic cross-section of a kind of concrete spraying machine spray gun of the utility model.
In figure: 1-lance tube body, 2-air nozzle, 3-opening for feed, 4-discharge port.
Embodiment:
Below in conjunction with the embodiment in accompanying drawing, the utility model will be further described:
A kind of concrete spraying machine spray gun of the utility model, mainly comprises lance tube body (1), air nozzle (2), opening for feed (3), discharge port (4); Described lance tube body is conical gradual change tubular structure; Described air nozzle is hollow tubular structure; Described air nozzle is embedded in spray gun tube wall; Described a kind of concrete spraying machine spray gun, air nozzle (2) is annular spread around lance tube body (1) medullary ray; The medullary ray of air nozzle (2), with being 15 �� through the plane included angle of embedding point with medullary ray, is being 20 �� through plane inner projection and the centerlines of embedding point with medullary ray; Under the effect of the air nozzle (2) being in tilted layout multiple ring spray gun barrel body (1), high speed eddy airstream is formed in lance tube body (1), concrete enters in lance tube body (1) by opening for feed (3), mix more even while being fully accelerated, spray discharge port (4) at a high speed, after making the mixing more evenly of water, aggregate, accelerating chemicals, high-velocity jet is to, on metope, reducing rebound degree, wet spray better effects if. A kind of concrete spraying machine spray gun using method described in the utility model is simple, it is not necessary to re-starts training on operation, can be widely used in supporting the use of the wet spray machines such as concrete, is particularly useful for gunite during rock gangway supporting.
Claims (3)
1. a concrete spraying machine spray gun, it is characterised in that: comprise lance tube body (1), air nozzle (2), opening for feed (3), discharge port (4); Described lance tube body (1) is conical gradual change tubular structure; Described air nozzle (2) is hollow tubular structure; Described air nozzle (2) is embedded in lance tube body (1) outer wall.
2. a kind of concrete spraying machine spray gun according to claim 1, it is characterised in that: air nozzle (2) is annular spread around lance tube body (1) medullary ray.
3. a kind of concrete spraying machine spray gun according to claim 1 and 2, it is characterized in that: the medullary ray of air nozzle (2), with being 15 �� through the plane included angle of embedding point with medullary ray, is being 20 �� through plane inner projection and the centerlines of embedding point with medullary ray.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620023123.1U CN205277447U (en) | 2016-01-07 | 2016-01-07 | Concrete wet blasting machine spray gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620023123.1U CN205277447U (en) | 2016-01-07 | 2016-01-07 | Concrete wet blasting machine spray gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205277447U true CN205277447U (en) | 2016-06-01 |
Family
ID=56062030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620023123.1U Expired - Fee Related CN205277447U (en) | 2016-01-07 | 2016-01-07 | Concrete wet blasting machine spray gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205277447U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107013233A (en) * | 2017-06-16 | 2017-08-04 | 徐工集团工程机械有限公司 | Concrete spray head and concrete sprayer |
| CN109881893A (en) * | 2019-03-08 | 2019-06-14 | 中国铁建重工集团有限公司 | A kind of nozzle for wet shot trolley |
| CN113266398A (en) * | 2021-06-18 | 2021-08-17 | 中煤科工集团重庆研究院有限公司 | Spray gun and method for reducing rebound rate of wet sprayed concrete |
-
2016
- 2016-01-07 CN CN201620023123.1U patent/CN205277447U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107013233A (en) * | 2017-06-16 | 2017-08-04 | 徐工集团工程机械有限公司 | Concrete spray head and concrete sprayer |
| CN109881893A (en) * | 2019-03-08 | 2019-06-14 | 中国铁建重工集团有限公司 | A kind of nozzle for wet shot trolley |
| CN113266398A (en) * | 2021-06-18 | 2021-08-17 | 中煤科工集团重庆研究院有限公司 | Spray gun and method for reducing rebound rate of wet sprayed concrete |
| CN113266398B (en) * | 2021-06-18 | 2023-11-07 | 中煤科工集团重庆研究院有限公司 | Spray gun and method for reducing rebound rate of wet sprayed concrete |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160601 Termination date: 20170107 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |