CN202755984U - Gas-material mixing spray gun - Google Patents

Gas-material mixing spray gun Download PDF

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Publication number
CN202755984U
CN202755984U CN 201220430592 CN201220430592U CN202755984U CN 202755984 U CN202755984 U CN 202755984U CN 201220430592 CN201220430592 CN 201220430592 CN 201220430592 U CN201220430592 U CN 201220430592U CN 202755984 U CN202755984 U CN 202755984U
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CN
China
Prior art keywords
gas
pipe
gas mixing
spray gun
mixing pipe
Prior art date
Application number
CN 201220430592
Other languages
Chinese (zh)
Inventor
赵喜增
张成成
赵旭东
张志鹏
苏丽萍
刘志刚
王婧琰
Original Assignee
山西晋煤集团金鼎煤机矿业有限责任公司
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Publication date
Application filed by 山西晋煤集团金鼎煤机矿业有限责任公司 filed Critical 山西晋煤集团金鼎煤机矿业有限责任公司
Priority to CN 201220430592 priority Critical patent/CN202755984U/en
Application granted granted Critical
Publication of CN202755984U publication Critical patent/CN202755984U/en

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Abstract

The utility model relates to a wet-type pulp shooting machine for an underground coal mine, in particular to a gas-material mixing spray gun. The gas-material mixing spray gun solves the technical problem that an existing spray gun for the underground coal mine is uneven in mixing of accelerators and concrete. The gas-material mixing spray gun comprises a material-conveying hose, a gas-conveying hose, a gas mixing pipe connected with the material-conveying hose, and a gas inlet pipe connected with the gas-conveying hose. A casing pipe is sleeved outside the gas mixing pipe, and two holes are arranged in side walls of the casing pipe in opposite. The gas inlet pipe is of a tee-joint structure, one gas inlet of the gas inlet pipe is connected with the gas-conveying hose, and two gas outlets of the gas inlet pipe are connected with the casing pipe through the holes in the side walls of the casing pipe. One end of the gas mixing pipe is connected with the material-conveying hose, and the other end of the gas mixing pipe is connected with a nozzle. A plurality of oblique holes are arranged in the whole body of the middle-front portion of the gas mixing pipe at even intervals. Due to the fact that the concrete is evenly mixed with the accelerators, the concrete sprayed by the gas-material mixing spray gun is free of dust, and therefore physical health of workers can be guaranteed.

Description

Gas material mixture spray gun
Technical field
The utility model relates to the underground mine use Wet-type patching machine, is specially a kind of gas material mixture spray gun.
Background technology
At present, down-hole wet type concrete spraying supporting has become the important step of supporting under the coal mine, and progressively replace the dry type gunite, the wet type not only high efficiency of whitewashing, gunite effect is good, the more important thing is the labour intensity that has reduced the workman, improved operating environment, elimination the dust infringement healthy to the workman.Generally the arm end at Wet-type patching machine is equipped with for the spray gun of whitewashing, accelerating admixture mixes formation concrete material and ejection with concrete in spray gun, but in use, accelerating admixture usually occurring mixes the uneven slump that causes (slump refers to concrete plasticizing capacity and pumpability energy with concrete, wherein comprise flowability, cohesiveness and water retention, the larger gunite effect of the slump is poorer) large, the problems such as easily stifled rifle, affected gunite effect, and may bring potential safety hazard to follow-up operation, therefore in the urgent need to a kind of can be with concrete and the spray gun that accelerating admixture mixes and evenly spray.
Summary of the invention
The utility model mixes inequality for accelerating admixture often appears in the present underground mine use spray gun of solution with concrete, and then the slump that causes is large, easily blocks up the technical problems such as rifle, and a kind of gas material mixture spray gun is provided.
The utility model is realized by the following technical solutions: a kind of gas material mixture spray gun, comprise conveying flexible pipe and air hose, and also comprise the gas mixing pipe that is connected with the conveying flexible pipe and the air inlet pipe that is connected with air hose; The described gas mixing pipe outside also is arranged with sleeve pipe, and the sidewall of sleeve pipe has two holes relatively; Air inlet pipe is three-port structure, and an air inlet port of air inlet pipe is connected with air hose, and two gas outlets of air inlet pipe all are connected with sleeve pipe by the hole on the sleeve pipe sidewall; One end of gas mixing pipe is connected with the conveying flexible pipe, and the other end of gas mixing pipe is connected with nozzle; Be equipped with sealing ring between the position at the close two ends of internal surface of sleeve pipe and the gas mixing pipe; The ring gas mixing pipe whole body equidistantly has some inclined holes, and described inclined hole is between two sealing rings, and the axial angulation axial and gas mixing pipe of inclined hole is 20 ° ~ 45 °.
During use, the utility model is installed in the arm end of Wet-type patching machine, concrete enters gas mixing pipe through the conveying flexible pipe, enters sleeve pipe by air hose and air inlet pipe after accelerating admixture mixes with compressed air; The accelerating admixture that enters sleeve pipe enters gas mixing pipe by the inclined hole on the gas mixing pipe under compressed-air actuated effect, mix with concrete by being sprayed by nozzle; The inclined hole of evenly offering around the gas mixing pipe sidewall and inclined hole axially with gas mixing pipe axially between angulation can guarantee that accelerating admixture evenly mixes with concrete, and under compressed-air actuated effect, evenly spray rapidly; Be provided with sealing ring between the position at the close two ends of internal surface of sleeve pipe and the gas mixing pipe; form an airtight air chamber in the cavity between sleeve pipe and gas mixing pipe; guarantee on the one hand the tightness of spray gun; guarantee the injection dynamics of concrete material; make on the other hand to form malleation in the air chamber, prevent that concrete from entering air chamber and stopping up inclined hole or air inlet pipe.Gas mixing pipe two ends and conveying flexible pipe are connected with nozzle to be connected and are adopted various ways, can be connected with bolt by pressing plate, also can link by the standard concrete carrier pipe to connect.
The utility model has been realized accelerating admixture and concrete even the mixing by the combination of the parts such as gas mixing pipe and sleeve pipe, obtained good technique effect, can not occurring accelerating admixture that used has during whitewashing, to mix the inhomogeneous slump that causes large, easily the problem such as stifled rifle; And structure is very simple, and making and detachable maintaining are also very convenient.The utility model can make concrete evenly mix with accelerating admixture, without dust, has guaranteed that the workman's is healthy through the concrete of this lance ejection.
Description of drawings
Fig. 1 is the utility model master TV structure schematic diagram.
Fig. 2 is that the utility model is looked up structural representation.
Fig. 3 is the utility model gas mixing pipe structural representation.
Fig. 4 is the utility model nozzle arrangements schematic diagram.
1-conveying flexible pipe; The 2-air hose; The 3-air inlet pipe; The 4-gas mixing pipe; The 5-sleeve pipe; The 6-inclined hole, the 7-sealing ring; The 8-pressing plate; The 9-nozzle; The 10-wear-resistant coating, 11-the first straight section, 12-conical section, 13-the second straight section, 14-flange face, 15-groove.
The specific embodiment
A kind of gas material mixture spray gun comprises conveying flexible pipe 1 and air hose 2, also comprises the gas mixing pipe 4 that is connected with conveying flexible pipe 1 and the air inlet pipe 3 that is connected with air hose 2; Described gas mixing pipe 4 outsides also are arranged with sleeve pipe 5, and the sidewall of sleeve pipe 5 has two holes relatively; Air inlet pipe 3 is three-port structure, and an air inlet port of air inlet pipe 3 is connected with air hose 2, and two gas outlets of air inlet pipe 3 all are connected with sleeve pipe 5 by the hole on sleeve pipe 5 sidewalls; One end of gas mixing pipe 4 is connected with conveying flexible pipe 1, and the other end of gas mixing pipe 4 is connected with nozzle 9; Be equipped with sealing ring 7 between the position at the close two ends of sleeve pipe 5 inwalls and the gas mixing pipe 4; Ring gas mixing pipe 4 whole body equidistantly have some inclined holes 6, and described inclined hole 6 is between two sealing rings 7, and the axial angulation axial and gas mixing pipe 4 of inclined hole 6 is 20 ° ~ 45 ° (can select 20 °, 25 °, 30 °, 35 °, 40 °, 45 °).Inclined hole 6 axially and gas mixing pipe 4 axial angulations be 30 °.Scribble one deck wear-resistant coating 10 on the inwall of described gas mixing pipe 4.One end of described nozzle 9 is provided with flange face 14, and the outside of nozzle 9 is provided with the pressing plate 8 that matches with flange face 14; The flange face 14 of described nozzle 9 joins with the end face of gas mixing pipe 4, and is connected by the bolt between the end face that is arranged on pressing plate 8 and gas mixing pipe 4.The structure of nozzle comprises the first straight section 11, conical section 12 and the second straight section 13 that connects in turn, and flange face 14 is arranged on the end of the first straight section 11.
Be provided with two grooves 15 with sleeve pipe 5 near corresponding position, end on the gas mixing pipe 4, be used for installing sealing ring 7.Inclined hole 6 numbers on the gas mixing pipe 4 are general to adopt 12, inclined hole 6 is 30 ° (as shown in Figure 3) with gas mixing pipe 4 angulations, such layout can with the jet velocity of concrete and accelerating admixture with reach best cooperating of mixing velocity, and can prevent effectively that concrete from stopping up air inlet.Wear-resistant coating 10 plays the effect of protection gas mixing pipe 4 inwalls.The material of nozzle 9 is polyurethane, has good self-lubricating and elasticity, can prevent effectively that the concrete material from stopping up at the nozzle place; Nozzle 9 structures comprise that in turn the first straight section 11, conical section 12 and the second straight section 13(that connect are as shown in Figure 4), such structure more is conducive to the concrete material and sprays uniformly.

Claims (7)

1. a gas material mixture spray gun comprises conveying flexible pipe (1) and air hose (2), it is characterized in that, also comprises the gas mixing pipe (4) that is connected with conveying flexible pipe (1) and the air inlet pipe (3) that is connected with air hose (2); Described gas mixing pipe (4) outside also is arranged with sleeve pipe (5), and the sidewall of sleeve pipe (5) has two holes relatively; Air inlet pipe (3) is three-port structure, and an air inlet port of air inlet pipe (3) is connected with air hose (2), and two gas outlets of air inlet pipe (3) all are connected with sleeve pipe (5) by the hole on sleeve pipe (5) sidewall; One end of gas mixing pipe (4) is connected with conveying flexible pipe (1), and the other end of gas mixing pipe (4) is connected with nozzle (9); Be equipped with sealing ring (7) between the position at the close two ends of sleeve pipe (5) inwall and the gas mixing pipe (4); Ring gas mixing pipe (4) whole body equidistantly has some inclined holes (6), and described inclined hole (6) is positioned between two sealing rings (7), and the axial angulation axial and gas mixing pipe (4) of inclined hole (6) is 20 ° ~ 45 °.
2. gas material mixture spray gun as claimed in claim 1 is characterized in that, described inclined hole (6) is 30 ° with the axial angulation of gas mixing pipe (4) axially.
3. gas material mixture spray gun as claimed in claim 1 or 2 is characterized in that, scribbles one deck wear-resistant coating (10) on the inwall of described gas mixing pipe (4).
4. gas material mixture spray gun as claimed in claim 1 or 2 is characterized in that, an end of described nozzle (9) is provided with flange face (14), and the outside of nozzle (9) is provided with the pressing plate (8) that matches with flange face (14); The flange face (14) of described nozzle (9) and the end face of gas mixing pipe (4) join, and are connected by the bolt between the end face that is arranged on pressing plate (8) and gas mixing pipe (4).
5. gas material mixture spray gun as claimed in claim 3 is characterized in that, an end of described nozzle (9) is provided with flange face (14), and the outside of nozzle (9) is provided with the pressing plate (8) that matches with flange face (14); The flange face (14) of described nozzle (9) and the end face of gas mixing pipe (4) join, and are connected by the bolt between the end face that is arranged on pressing plate (8) and gas mixing pipe (4).
6. gas material mixture spray gun as claimed in claim 4 is characterized in that, the structure of nozzle (9) comprises the first straight section (11), conical section (12) and the second straight section (13) that connects in turn; Flange face (14) is arranged on the end of the first straight section (11).
7. gas material mixture spray gun as claimed in claim 5 is characterized in that, the structure of nozzle (9) comprises the first straight section (11), conical section (12) and the second straight section (13) that connects in turn; Flange face (14) is arranged on the end of the first straight section (11).
CN 201220430592 2012-08-28 2012-08-28 Gas-material mixing spray gun CN202755984U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220430592 CN202755984U (en) 2012-08-28 2012-08-28 Gas-material mixing spray gun

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220430592 CN202755984U (en) 2012-08-28 2012-08-28 Gas-material mixing spray gun

Publications (1)

Publication Number Publication Date
CN202755984U true CN202755984U (en) 2013-02-27

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220430592 CN202755984U (en) 2012-08-28 2012-08-28 Gas-material mixing spray gun

Country Status (1)

Country Link
CN (1) CN202755984U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103769323A (en) * 2014-01-24 2014-05-07 江西省交通工程集团公司 Multi-mixing cavity type spray nozzle of dry type spraying machine
CN104453941A (en) * 2013-09-16 2015-03-25 姚来平 Direct-spraying type concrete sprayer
CN104481120A (en) * 2014-12-16 2015-04-01 平顶山鸿顺源工贸有限公司 Filling and guniting support frame for dry powder accelerating agent
CN105350983A (en) * 2015-10-29 2016-02-24 无锡市永亿精密铸造有限公司 Coal mine tunnel grouting jet device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104453941A (en) * 2013-09-16 2015-03-25 姚来平 Direct-spraying type concrete sprayer
CN103769323A (en) * 2014-01-24 2014-05-07 江西省交通工程集团公司 Multi-mixing cavity type spray nozzle of dry type spraying machine
CN104481120A (en) * 2014-12-16 2015-04-01 平顶山鸿顺源工贸有限公司 Filling and guniting support frame for dry powder accelerating agent
CN105350983A (en) * 2015-10-29 2016-02-24 无锡市永亿精密铸造有限公司 Coal mine tunnel grouting jet device

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