CN105442849B - Gunite concrete ejecting device - Google Patents
Gunite concrete ejecting device Download PDFInfo
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- CN105442849B CN105442849B CN201510892354.6A CN201510892354A CN105442849B CN 105442849 B CN105442849 B CN 105442849B CN 201510892354 A CN201510892354 A CN 201510892354A CN 105442849 B CN105442849 B CN 105442849B
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- water
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- water inlet
- chamber
- atomizer
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Abstract
The present invention relates to a kind of nozzle, more particularly to a kind of gunite concrete ejecting device, including water inlet, valve, nozzle boss and nozzle, the passage passed through for concrete is provided with the nozzle boss, the nozzle is connected with nozzle boss, the water ring chamber connected with water inlet is provided between the outer wall of the nozzle boss and the passage, it is water ring set between passage and the water ring chamber, the water inlets of 4 ~ 8 connection water ring chambers and passage, the axial certain angle that mutually staggers of the water inlet are both provided with 4 ~ 8 end faces at the axial certain distance interval of water ring set.The dry cement particulate without moisture moistening contained by concrete material when the present invention can reduce injection, reduces dust, reduces rebound material, improves injection intensity.
Description
Technical field
The present invention relates to a kind of nozzle, more particularly to a kind of gunite concrete ejecting device.
Background technology
As various pollutions and the increase of noxious emission, the improvement to atmosphere pollution are asked as social development is important now
Topic, wherein concrete ejection support process is also to cause one of pollution sources of atmosphere pollution.Concrete ejection support process passes through
The development of decades, has been commonly utilized in the rock gangway of building foundation pit, subway, bank protection, highway, high ferro tunnel and mine engineering
In supporting.At present, concrete support technological development is dry spray and two kinds of processes of wet shot, concrete dry pressure spray process fed distance
Far, equipment is simple, convenient operating maintenance, but because raw material is the mixture of dry sand, stone and cement during dry spray, and when work removes
Discharged around spraying machine outside a large amount of dust, by compressed air along blast tube by the dry mixing of sand, stone and cement
Thing is transported in ejecting device, is then added water injection and is gone out, equally can also produce a large amount of dust.Dry spray nozzle system is general at present
All over the combination for adding head body using nozzle boss as shown in Figure 1, one end of head body along end face radially
Some apertures have uniformly been bored, water enters from one end of nozzle along these apertures to be mixed with the dry mixture of sand, stone and cement,
Then eject, since water is to be mixed from a circumferential end surfaces with dry mixture, incorporation time is very short, blending space one
The mixing of a face, water and dry mixture is very insufficient, and the concrete for causing to eject contains largely to be moistened without moisture
Dry cement molecule, form pollution dust, rebound material when seriously endangering the health of worker, and also resulting in injection
Increase, reduce the intensity of jet face.
The content of the invention
The purpose of the present invention is for above-mentioned problem, there is provided a kind of blending space it is longer can make water and coagulation
The well-mixed gunite concrete ejecting device of earth mixtures.
Gunite concrete ejecting device of the present invention is adopted the technical scheme that：
A kind of ejecting device, including water inlet, valve, nozzle boss and nozzle, the water inlet are connected by water pipe and valve
Connect, the passage passed through for concrete is provided with the nozzle boss, the nozzle is connected with nozzle boss, the outer wall of the nozzle boss
The water ring chamber connected with water inlet is inside provided with, is water ring set between passage and water ring chamber, the axial certain distance of water ring set
The water inlet of 4 ~ 8 connection water ring chambers and passage is both provided with 4 ~ 8 end faces at interval, the water inlet axially mutually staggers
Certain angle.
A diameter of 0.5mm ~ 4mm of the water inlet.
The water inlet axial direction mutually staggers 15 ° ~ 45 °.
The material of the water ring set includes Wear-resistant engineering plastic, polyurethane and polytetrafluoroethylene (PTFE), ferrous metal or has coloured gold
Belong to alloy any one.
A kind of ejecting device, including water inlet, valve, nozzle boss and nozzle, the water inlet are connected with water pipe, the valve
Door is installed on water pipe, and the nozzle is connected with nozzle boss, and circumference offers some water inlets on the tube wall of nozzle, described
The ring-type cloth water chamber connected with water pipe is set with nozzle outer wall, at least one atomizer is provided with the cloth water chamber, it is described
The water inlet end of atomizer is connected with water pipe, and the spraying end of the atomizer is against at least one water inlet.
At least one vertically arranged atomizer, the water inlet end connection water of the atomizer are provided with the cloth water chamber
Pipe, the spraying end emission direction face water inlet of the atomizer.
The side of the cloth water chamber is connected with water receiving chamber, and the water receiving chamber connects water pipe, atomizer be arranged on water receiving chamber with
On the side wall that cloth water chamber is connected, the water inlet end of atomizer is connected with water receiving chamber, and the ejection end of atomizer is located in cloth water chamber.
A kind of ejecting device, including water inlet, valve, nozzle boss and nozzle, the water inlet are connected with water pipe, the valve
Door
On water pipe, the nozzle adds water end (W.E.) to be plugged in nozzle boss, is provided with nozzle and passes through for concrete
Passage, nozzle adds water end (W.E.) is cylindrical to offer ring-type cloth water chamber, it is characterised in that：Set along 4 ~ 8 end faces of ring-type cloth water chamber
There is the water inlet of 4 ~ 8 radially uniform distributions.The water inlet of each end face staggers certain angle relative to a upper end face.
The quantity of atomizer described above is 4 ~ 10.
The beneficial effects of the invention are as follows：
The 1st, the water ring chamber connected with water pipe is set on nozzle boss or on nozzle, and water ring chamber passes through different end faces
And the passage of the water inlet connection concrete for the certain angle that mutually staggers, so when passage of the concrete by nozzle boss, profit
Water is uniformly ejected into above concrete with water inlet, makes the time that water is contacted with concrete longer, and ensure that water with
Concrete is sufficiently mixed, and the dry cement smile particle without moisture moistening contained by the concrete material for making to eject drops significantly
Low, rebound material during injection is reduced, and improves the intensity of injection.
The 2nd, cloth water chamber is set on nozzle, and the atomizer connected with water pipe is installed in cloth water chamber, in such water pipe
Water is ejected into water inlet after atomizer atomization and enters on concrete material, and the water of atomization just can be mixed with concrete material
Closing, atomized water increases the area of the mixing of water and concrete, and can faster incorporate in concrete material, is uniformly mixed fully,
Dust is reduced, improves the intensity of injection.
3rd, tests prove that, the injection compressive strength for surface contact of gunite concrete ejecting device of the present invention is not less than 20MP, mixes
The water addition ratio example for coagulating soil is about 0.4 ~ 0.6 times of cement weight, and conventional dry is sprayed to the dust concentration at formula spraying machine nozzle to be reduced
To 300 ~ 500mg/m3, jetting material rebound degree is reduced to 5% ~ 10%.
Brief description of the drawings
Fig. 1 is ejecting device structure diagram in the prior art；
Fig. 2 is the cross-sectional view of the embodiment one of gunite concrete ejecting device of the present invention；
Fig. 3 is the structure diagram of nozzle boss in Fig. 2；
Fig. 4 is A-A schematic cross-sectional views in Fig. 3；
Fig. 5 is B-B schematic cross-sectional views in Fig. 3；
Fig. 6 is C-C schematic cross-sectional views in Fig. 3；
Fig. 7 is D-D schematic cross-sectional views in Fig. 3；
Fig. 8 is the cross-sectional view of the embodiment two of gunite concrete ejecting device of the present invention.
Fig. 9 is the structure diagram of the embodiment three of gunite concrete ejecting device of the present invention；
The structure diagram of the example IV of Figure 10 positions gunite concrete ejecting device of the present invention.
In figure：1- nozzles, 2- water inlets, 3- nozzle bosses, 4- water ring sets, 5- valves, 6- water inlets, 7- add water end (W.E.), and 8- is recessed
Groove section, 9- cloth water chambers, 10- atomizers.
Embodiment
The embodiment one of gunite concrete ejecting device of the present invention, as shown in Fig. 1 ~ 7, including water inlet 6, valve 5, spray
Headstock 3 and nozzle 1, the passage for concrete ejection is provided with nozzle boss 3, and nozzle 1 is connected with nozzle boss 3, nozzle boss 3 it is outer
The columnar water ring chamber connected with water inlet 6 is offered between wall and the passage of nozzle 1, is pacified between water inlet 6 and water ring set 4
Equipped with for controlling the valve 5 that water pipe is opened and closed, 4 are covered for water ring between passage and water ring chamber, between 4 axial certain distances of water ring set
Every 4 ~ 8 end faces on be both provided with 4 ~ 8 connection water ring chambers and passage water inlets, as shown in Fig. 4 ~ 7, in the present embodiment
Water ring set offers four end faces and is used for opening up water inlet 2, and the water inlet of each end face staggers certain angle, A end faces plus
The distance of water hole and vertical axis is 0 degree, and the water inlet of B end faces and the angle of vertical axis are 45 degree, the water inlet in C-terminal face
Angle with vertical axis is 30 degree, and the water inlet of D end faces and the angle of vertical axis are 15 degree, so when concrete passes through spray
During the passage of headstock, valve 5 is opened, water is flowed into water ring set 4 from water inlet, and then the water in water ring set is complete by water inlet
Face, be uniformly added in concrete mix, can make time and space lengthening that water is contacted with concrete mix, make to mix
Compound is sufficiently mixed with water, and the contained dry cement molecule without moisture moistening of the concrete material ejected substantially reduces, powder
Dirt is greatly reduced, and rebound material is reduced during injection, improves injection surface intensity, pollution of the dust for avoiding ejecting to environment.
The embodiment two of gunite concrete ejecting device, different from embodiment one is nozzle plus water end (W.E.) outer
Circle opens up groove segment 8, and 4 ~ 8 end faces are taken along groove segment, and different 4 ~ 8 radially uniform point of angle is opened up on each end face
The water inlet of cloth.
The embodiment three of gunite concrete ejecting device, as shown in figure 9, several water inlets 2 are opened up on nozzle,
One cloth water chamber 9 is installed on the outer wall of nozzle, several small-sized atomizers 10, the water inlet end of atomizer 10 are installed in cloth water chamber
Connected with water pipe, spraying end then correspond to the water inlet 2 opened up on nozzle 1, and water enters atomizer 10 by water pipe, from atomizer 10
Spraying section spray spray water, and have little time cohesion spray water be directly ejected into by inlet opening 2 above concrete material, make water
With being more fully mixed for concrete material, reduce rebound material during injection, improve injection intensity.
The example IV of gunite concrete ejecting device, as shown in Figure 10, different from embodiment three is cloth water chamber 9
Left side be the water receiving chamber of connection water pipe, the water entered through water inlet 6 is stored in water receiving intracavitary, then on the right side of water receiving chamber 9
4 ~ 10 atomizers 10 being circular layout are set on wall, and 10 angled downward from horizontal of atomizer is set, after being atomized through atomizer 10
Water be mixed into by the water inlet opened up on nozzle in concrete material.
The embodiment five of gunite concrete ejecting device, different from embodiment three is：Opened on the outer wall of nozzle
If water inlet in installation sprayer 10, the water inlet end of sprayer 10 be located in cloth water chamber, and the ejection end of sprayer 10 is against spraying
The concrete material of head inner cavity.
The experiment effect of gunite concrete ejecting device of the present invention：Tests prove that gunite concrete of the present invention is used
The injection compressive strength for surface contact of ejecting device is not less than 20MP, and the water addition ratio example of concrete is about 0.4 ~ 0.6 times of cement weight, will
Dust concentration at conventional dry spray formula spraying machine nozzle is reduced to 300 ~ 500mg/m3, jetting material rebound degree is reduced to 5 ~ 10%
。
Claims (5)
1. a kind of gunite concrete ejecting device, including water inlet, valve, nozzle boss and nozzle, the water inlet pass through water
Pipe is connected with valve, the passage passed through for concrete is provided with the nozzle boss, the nozzle is connected with nozzle boss, its feature
It is：The water ring chamber connected with water inlet is provided with the outer wall of the nozzle boss, is water ring set between passage and water ring chamber, institute
State the water inlet that 4 ~ 8 connection water ring chambers and passage are both provided with 4 ~ 8 end faces of water ring set axially spaced-apart, the water inlet
It is axial mutually to stagger；A diameter of 0.5mm ~ 4mm of the water inlet；The water inlet axial direction mutually staggers 15 ° ~ 45 °.
2. gunite concrete ejecting device according to claim 1, it is characterised in that：The material of the water ring set includes
Wear-resistant engineering plastic, ferrous metal or non-ferrous alloy any one.
3. a kind of gunite concrete ejecting device, including water inlet, valve, nozzle boss and nozzle, the water inlet are connected with
Water pipe, the valve are installed on water pipe, and the nozzle is connected with nozzle boss, and circumference offers some add on the tube wall of nozzle
Water hole, it is characterised in that：The ring-type cloth water chamber connected with water pipe is set with the nozzle outer wall, is set in the cloth water chamber
There is at least one atomizer, the water inlet end of the atomizer is connected with water pipe, and the spraying end of the atomizer is against at least one
Water inlet；At least one vertically arranged atomizer is provided with the cloth water chamber, the water inlet end of the atomizer connects water pipe,
The spraying end emission direction face water inlet of the atomizer；The side of the cloth water chamber is connected with water receiving chamber, the water receiving chamber
Water pipe is connected, atomizer is arranged on the side wall that water receiving chamber is connected with cloth water chamber, and the water inlet end of atomizer is connected with water receiving chamber, mist
The ejection end for changing device is located in cloth water chamber.
4. a kind of gunite concrete ejecting device, including water inlet, valve, nozzle boss and nozzle, the water inlet are connected with
Water pipe, the valve are installed on water pipe, and the nozzle adds water end (W.E.) to be plugged in nozzle boss, is provided with nozzle for concrete
The passage passed through, nozzle add water end (W.E.) is cylindrical to offer groove segment, it is characterised in that：4 ~ 8 end faces of groove segment are provided with 4 ~ 8
The water inlet of a radially uniform distribution, the water inlet of each end face stagger certain angle relative to a upper end face.
5. gunite concrete ejecting device according to claim 3, it is characterised in that：The quantity of the atomizer for 4 ~
10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510892354.6A CN105442849B (en) | 2015-12-08 | 2015-12-08 | Gunite concrete ejecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510892354.6A CN105442849B (en) | 2015-12-08 | 2015-12-08 | Gunite concrete ejecting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105442849A CN105442849A (en) | 2016-03-30 |
| CN105442849B true CN105442849B (en) | 2018-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510892354.6A Active CN105442849B (en) | 2015-12-08 | 2015-12-08 | Gunite concrete ejecting device |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106401607B (en) * | 2016-10-12 | 2019-04-09 | 青岛登高工程技术咨询有限公司 | A kind of equipment for improving dry shotcreting mixture homogeneity and reducing dust |
| CN110000023A (en) * | 2019-05-07 | 2019-07-12 | 中建八局轨道交通建设有限公司 | It is a kind of to reduce the device for spraying mixed dust |
| CN110206316A (en) * | 2019-06-13 | 2019-09-06 | 山西汾西华益实业有限公司 | A kind of novel injection concrete equipment |
| CN110700591B (en) * | 2019-10-15 | 2021-07-23 | 国鼎(南通)管桩有限公司 | Multipurpose nozzle for spraying concrete |
Citations (10)
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|---|---|---|---|---|
| JPS56102959A (en) * | 1979-12-05 | 1981-08-17 | Kurosaki Refract Co Ltd | Nozzle for spraying cement or amorphous refractory material |
| DE3012712A1 (en) * | 1980-04-01 | 1981-10-08 | Aliva AG, Widen-Mutschellen | Spray gun for cement slurries - has all surfaces subject to wear in single replaceable component |
| CN2054058U (en) * | 1989-08-07 | 1990-03-07 | 中国石油化工隔热耐磨衬里工程公司 | Two-section water inlet jet nozzle of shotcrete machine |
| EP0405969A1 (en) * | 1989-06-29 | 1991-01-02 | Elkem A/S | Spray nozzle |
| CN2242286Y (en) * | 1995-06-19 | 1996-12-11 | 武汉钢铁(集团)公司 | Double water-ring spraying nozzle |
| WO2001017924A1 (en) * | 1999-09-06 | 2001-03-15 | Lafarge Refractories | Method for spraying concrete by dry process, corresponding spray nozzle and wetting ring |
| CN201495753U (en) * | 2009-09-21 | 2010-06-02 | 山东天河科技有限公司 | Spray gun of concrete spraying machine |
| CN204152211U (en) * | 2014-08-26 | 2015-02-11 | 天津豹鸣股份有限公司 | The simple spray gun of concrete spraying machine of a kind of structure |
| CN104907201A (en) * | 2015-06-10 | 2015-09-16 | 汤阴县万祥塑化有限责任公司 | Spray gun |
| CN205243020U (en) * | 2015-12-08 | 2016-05-18 | 河南省煤炭科学研究院有限公司 | Shower nozzle device for shotcrete |
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2015
- 2015-12-08 CN CN201510892354.6A patent/CN105442849B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56102959A (en) * | 1979-12-05 | 1981-08-17 | Kurosaki Refract Co Ltd | Nozzle for spraying cement or amorphous refractory material |
| DE3012712A1 (en) * | 1980-04-01 | 1981-10-08 | Aliva AG, Widen-Mutschellen | Spray gun for cement slurries - has all surfaces subject to wear in single replaceable component |
| EP0405969A1 (en) * | 1989-06-29 | 1991-01-02 | Elkem A/S | Spray nozzle |
| CN2054058U (en) * | 1989-08-07 | 1990-03-07 | 中国石油化工隔热耐磨衬里工程公司 | Two-section water inlet jet nozzle of shotcrete machine |
| CN2242286Y (en) * | 1995-06-19 | 1996-12-11 | 武汉钢铁(集团)公司 | Double water-ring spraying nozzle |
| WO2001017924A1 (en) * | 1999-09-06 | 2001-03-15 | Lafarge Refractories | Method for spraying concrete by dry process, corresponding spray nozzle and wetting ring |
| CN201495753U (en) * | 2009-09-21 | 2010-06-02 | 山东天河科技有限公司 | Spray gun of concrete spraying machine |
| CN204152211U (en) * | 2014-08-26 | 2015-02-11 | 天津豹鸣股份有限公司 | The simple spray gun of concrete spraying machine of a kind of structure |
| CN104907201A (en) * | 2015-06-10 | 2015-09-16 | 汤阴县万祥塑化有限责任公司 | Spray gun |
| CN205243020U (en) * | 2015-12-08 | 2016-05-18 | 河南省煤炭科学研究院有限公司 | Shower nozzle device for shotcrete |
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| Publication number | Publication date |
|---|---|
| CN105442849A (en) | 2016-03-30 |
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| CB03 | Change of inventor or designer information |
Inventor after: Yan Weihe Inventor after: Yu Mingzhe Inventor after: Ren Yalei Inventor after: Ning Xueyan Inventor after: Fan Junping Inventor after: Zhang Hongxing Inventor after: Zhang Wenke Inventor after: Wang Junping Inventor after: Li Bo Inventor after: Zhan Dongyang Inventor after: Zhu Xuefeng Inventor after: Chen Yongsheng Inventor after: Lu Anlin Inventor after: Sun Qingrun Inventor after: Zhang Zhiyong Inventor after: Wang Yong Inventor after: Zhu Chunxue Inventor after: Cheng Hongli Inventor after: Wang Fei Inventor before: Yan Weihe Inventor before: Han Kun Inventor before: Deng Bo Inventor before: Zhan Dongyang Inventor before: Tang Gui Inventor before: Zhang Tao Inventor before: Gao Xilin Inventor before: Li Bo Inventor before: Zhu Xuefeng Inventor before: Li Meng |
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Effective date of registration: 20180314 Address after: Fengyang high tech Industrial Development Zone, Henan province Zhengzhou City 450000 Street No. 17 Applicant after: Henan Igood Keming Electromechanical Equipment Co. Ltd Address before: High tech Zone Fengyang Street 450000 Henan city of Zhengzhou province No. 17 Applicant before: Henan Coal Science Research Institute Co., Ltd. |
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