CN215169986U

CN215169986U - Gas-material mixing device for wet spraying of small-section deep vertical shaft

Info

Publication number: CN215169986U
Application number: CN202121481636.4U
Authority: CN
Inventors: 陈恩瑜; 蔡柳洲; 邢秦智; 刘刚; 董圆芳; 濮志鑫; 李洋洋; 张曦; 张晗; 王凯
Original assignee: China Gezhouba Group No 3 Engineering Co Ltd
Current assignee: China Gezhouba Group No 3 Engineering Co Ltd
Priority date: 2021-06-29
Filing date: 2021-06-29
Publication date: 2021-12-14
Anticipated expiration: 2031-06-29

Abstract

The utility model discloses a gas-material mixing device for wet spraying of a small-section deep shaft, which comprises a gradual change discharging pipe, a feeding bin, a mixing bin, a gradual change bin, a spraying pipe, a compressed air reducing valve and an air inlet pipe; the gradual change discharging pipe is connected with a discharge port at the tail part of the wet spraying machine and is tightly wound to the side surface of the wet spraying machine from the discharge port at the tail part of the wet spraying machine; the gradual change discharging pipe is communicated with the feeding bin, the feeding bin is communicated with the mixing bin, and the front end of the mixing bin is sequentially communicated with the gradual change bin and the material spraying pipe; the rear end of the mixing bin is communicated with an air inlet pipe, and a compressed air reducing valve is arranged on the air inlet pipe. The gradual change discharging pipe is arranged in an arc shape by tightly winding the main body of the wet spraying machine, so that the phenomenon of concrete backflow caused by too short discharging pipe is avoided; the compressed air reducing valve is connected behind the air inlet pipe, so that the compressed air is stably output, the pressure stability is ensured, and the concrete spraying quality is higher. The problems that the equipment occupies more construction space and the time is consumed when the equipment goes into and out of the well for multiple times are thoroughly solved.

Description

Gas-material mixing device for wet spraying of small-section deep vertical shaft

Technical Field

The utility model belongs to the technical field of hydraulic and hydroelectric engineering spouts and protects, specifically belong to a gas material mixing arrangement for wet blasting of deep shaft of low-section.

Background

In the water conservancy and hydropower engineering spraying and protection practice, a wet spraying technology is mainly implemented at present, and with the development of industrial technology, a wet spraying manipulator is also rapidly developed. However, for the spray protection construction of some small-section deep shafts, the construction is limited by narrow space, and the manipulator wet spraying machine does not have enough space for operation. And as the depth of the shaft increases, the time required for the equipment to go down and up the well will increase significantly. Therefore, each more equipment and equipment is put into the well, and more time is consumed while one more space is occupied. Therefore, how to lower less machines and equipment into the well and make wet blasting operation simple and quick, and reduce the construction period while improving the efficiency is the key and difficult point of the wet blasting technology of the small-section deep shaft.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems existing in the prior art, the utility model provides a gas material mixing arrangement for wet blasting of deep shaft of small-section. When carrying out the wet blasting operation of low section deep shaft, can prefer this device for use, not only occupation space is little, low cost, easy operation to wet blasting efficiency has effectively been improved.

In order to achieve the above object, the utility model provides a following technical scheme:

a gas-material mixing device for wet spraying of a small-section deep vertical shaft comprises a gradual change discharging pipe, a feeding bin, a mixing bin, a gradual change bin, a spraying pipe, a compressed air reducing valve and an air inlet pipe;

the gradual change discharging pipe is connected with a discharge port at the tail part of the wet spraying machine and is tightly wound to the side surface of the wet spraying machine from the discharge port at the tail part of the wet spraying machine;

the gradual change discharging pipe is communicated with a feeding bin, the feeding bin is communicated with a mixing bin, and the front end of the mixing bin is sequentially communicated with the gradual change bin and the material spraying pipe; the rear end of the mixing bin is communicated with an air inlet pipe, and a compressed air reducing valve is arranged on the air inlet pipe.

Preferably, the gradual change discharging pipe is an arc gradual change steel pipe, and a pipe clamp and a flange are arranged on the gradual change discharging pipe; the gradual change discharging pipe passes through the flange and connects wet blasting tail portion discharge gate and pay-off storehouse respectively, and the gradual change discharging pipe is fixed through the pipe strap.

Preferably, the outlet angle of the feeding bin inclines upwards, and the pipe diameter of the feeding bin is equal to the outlet pipe orifice of the gradual change discharging pipe.

Preferably, the length and the pipe diameter of the mixing bin are both larger than those of the feeding bin, and the side opening of the mixing bin is welded with the feeding bin.

Preferably, the gradual change storehouse is the reducing pipe, and the entry diameter of gradual change storehouse is greater than the export diameter.

Preferably, the material spraying pipe is a thick rubber hose and is connected with the gradual change bin through a fastener bolt.

Preferably, the mixing bin, the gradual change bin, the material spraying pipe and the air inlet pipe are connected through flanges.

Furthermore, a rubber gasket is arranged at the flange connecting part.

Preferably, the air inlet pipe is a steel pipe with a threaded opening, and the threaded opening of the compressed air reducing valve is screwed with the threaded opening of the steel pipe.

Preferably, the gradual change discharging pipe, the feeding bin and the gradual change bin are all galvanized steel pipes.

Compared with the prior art, the utility model discloses following profitable technological effect has:

the utility model provides a gas-material mixing device for wet blasting of a small-section deep shaft, which adopts an arc arrangement mode of tightly winding a wet blasting machine main body through a gradual change discharging pipe, thereby avoiding the generation of a concrete backflow phenomenon caused by too short discharging pipe; the compressed air reducing valve is connected behind the air inlet pipe, so that the compressed air is stably output, the pressure stability is ensured, and the concrete spraying quality is higher. The problems that the equipment occupies more construction space and the time is consumed when the equipment goes into and out of the well for multiple times are thoroughly solved. Lay the mode simply, operation safety has satisfied the demand of the dark shaft wet blasting operation of small-section, has greatly improved the efficiency of construction and very big improvement the security of construction moreover, has guaranteed going on of shaft spraying protection work, moreover the utility model has the advantages of simple structure, economic nature is higher.

Further, mix storehouse length and pipe diameter and all be greater than the conveying pipe, and the pay-off mouth is located and mixes the storehouse side, has avoided the problem that the concrete refluence that produces at the bottom trompil blocks up even.

Furthermore, the flanges are adopted for connection, so that adjacent pipelines can be conveniently connected, the rubber gaskets are placed between the flanges, and the connection sealing performance is improved.

Drawings

FIG. 1 is a front view of a gas-material mixing device for wet blasting of a small-section deep shaft of the present invention;

FIG. 2 is a top view of the gas-material mixing device for wet blasting of a small-section deep shaft of the present invention;

in the drawings: 1-gradual change discharging pipe, 2-feeding bin, 3-mixing bin, 4-gradual change bin, 5-discharging pipe, 6-compressed air reducing valve, 7-air inlet pipe and 8-pipe clamp.

Detailed Description

The present invention will now be described in further detail with reference to specific examples, which are intended to be illustrative, but not limiting, of the invention.

The utility model relates to a gas material mixing arrangement for wet blasting of deep shaft of small-section, including gradual change discharging pipe 1, feeding bin 2, mixing bin 3, gradual change storehouse 4, spout material pipe 5, compressed air relief pressure valve 6, intake pipe 7. The gradual change discharging pipe 1 is an arc gradual change steel pipe and further comprises a pipe clamp 8 and a flange. The gradual change discharging pipe 1 is connected with a discharge hole at the tail part of the wet spraying machine through a flange and winds to the side of the wet spraying machine from the tail part. The material feeding bin 2 is connected with the gradual change discharging pipe 1 through a flange, and the material feeding bin 2 is a short steel pipe which inclines upwards. The feeding bin 2 is connected with the mixing bin 3, and the side surface is provided with a hole and welded with the feeding bin 2. The mixing bin 3 is a transverse straight steel pipe with a larger pipe diameter, and the front end of the mixing bin is provided with a flange. The front of the mixing bin 3 is connected with a gradual change bin 4 which is connected through a flange. One end of the gradual change bin 4 is adapted to the pipe diameter of the mixing bin 3, and the other end of the gradual change bin is gradually changed to be adapted to the pipe diameter of the material spraying pipe 5. The material spraying pipe 5 is a thick rubber hose and is connected with the gradual change bin 4 through a fastener bolt. A compressed air relief valve 6 is located after the mixing bin 3. The rear part of the compressed air pressure reducing valve 6 is connected with an air inlet pipe 7, and the air inlet pipe 7 is a small-pipe-diameter steel pipe with a threaded opening.

The utility model provides a gas material mixing arrangement for wet spraying of deep shaft of small-section, gradual change discharging pipe select for use tightly to wind the wet spraying machine main part and be circular-arc arrangement mode, have avoided causing the production of concrete backward flow phenomenon because of the discharging pipe is too short. Mix storehouse length and pipe diameter and all be greater than the conveying pipe, and the pay-off mouth is located and mixes the storehouse side, has avoided the concrete refluence that produces at the bottom trompil problem of jam even. The compressed air reducing valve is connected behind the air inlet pipe, so that the compressed air is stably output, the pressure stability is ensured, and the concrete spraying quality is higher. The problems that the equipment occupies more construction space and the time is consumed when the equipment goes into and out of the well for multiple times are thoroughly solved. Lay the mode simply, operation safety has satisfied the demand of the dark shaft wet blasting operation of small-section, has greatly improved the efficiency of construction and very big improvement the security of construction moreover, has guaranteed going on of shaft spraying protection work, moreover the utility model has the advantages of simple structure, economic nature is higher.

Examples

The utility model provides a gas material mixing arrangement for wet-blasting of deep shaft of small-section, as shown in figure 1 and figure 2, including gradual change discharging pipe 1, gradual change discharging pipe 1 is convex structure, gradual change discharging pipe 1 is the galvanized steel pipe, from wet-blasting quick-witted afterbody discharge gate tightly wind to wet-blasting machine side. The pipe diameter is gradually changed to a smaller pipe diameter from the diameter of the discharge hole, and a plurality of pipe clamps are used for fixing on the pipeline. Connect the feed bin 2 before the gradual change discharging pipe 1, use the flange to connect between, place the rubber gasket between the flange. The pipe diameter and the length of the feeding bin 2 are smaller. The feeding bin 2 is obliquely connected with the mixing bin 3 upwards in front, the hole is formed in the side surface of the mixing bin 3 and is welded with the feeding bin 2, the diameter and the length of the mixing bin 3 are larger than those of the feeding bin 2, and the mixing bin 3 is a galvanized transverse straight steel pipe. The front of the mixing bin 3 is connected with a gradual change bin 4, and the rear is connected with a compressed air reducing valve 6. Gradual change storehouse 4 and mixed storehouse 3 use the flange to be connected, and gradual change storehouse 4 is galvanized steel pipe, and one end suits with 3 pipe diameters in mixed storehouse, and the other end suits with 5 pipe diameters of discharging pipe. Connect discharging pipe 5 before the gradual change storehouse 4, use the fastener bolt to connect, discharging pipe 5 is thick rubber hose. The rear part of the mixing bin 3 is connected with a compressed air pressure reducing valve 6, and a small section of steel pipe with a screw opening is welded at the rear part of the mixing bin 3 and is screwed with the screw opening of the compressed air pressure reducing valve 6. A steel pipe with a threaded opening is used as the intake pipe 7 after the compressed air reducing valve 6.

Before the spraying protection work, field operation personnel only need to hang the wet spraying machine to the shaft bottom, concrete materials, compressed air and additives are conveyed to a working surface through a pipeline laid on the shaft wall, and after the pipeline is connected, the well mouth constructor can be informed to feed materials downwards to start working. The device reduces equipment and equipment to the utmost extent, saves space in the well, reduces time consumption of wet blasting work and saves construction period. The device is simple in structure, common in material, convenient to manufacture and high in cost performance.

Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the technical solution of the present invention, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: those skilled in the art can still modify or easily conceive of changes in the technical solutions described in the foregoing embodiments or make equivalent substitutions for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A gas-material mixing device for wet spraying of a small-section deep shaft is characterized by comprising a gradual change discharging pipe (1), a feeding bin (2), a mixing bin (3), a gradual change bin (4), a spraying pipe (5), a compressed air reducing valve (6) and an air inlet pipe (7);

the gradual change discharging pipe (1) is connected with a discharging port at the tail part of the wet spraying machine, and the gradual change discharging pipe (1) is tightly wound to the side surface of the wet spraying machine from the discharging port at the tail part of the wet spraying machine;

the gradual change discharging pipe (1) is communicated with a feeding bin (2), the feeding bin (2) is communicated with a mixing bin (3), and the front end of the mixing bin (3) is sequentially communicated with a gradual change bin (4) and a spraying pipe (5); the rear end of the mixing bin (3) is communicated with an air inlet pipe (7), and a compressed air reducing valve (6) is arranged on the air inlet pipe (7).

2. The gas-material mixing device for the wet blasting of the small-section deep shaft is characterized in that the gradual discharging pipe (1) is a circular arc gradual steel pipe, and a pipe clamp (8) and a flange are arranged on the gradual discharging pipe (1); gradual change discharging pipe (1) passes through the flange and connects wet blasting machine afterbody discharge gate and pay-off storehouse (2) respectively, and gradual change discharging pipe (1) is fixed through pipe strap (8).

3. The gas-material mixing device for wet blasting of the small-section deep shaft is characterized in that the outlet angle of the feeding bin (2) is inclined upwards, and the pipe diameter of the feeding bin (2) is equal to the outlet pipe orifice of the gradual-change discharging pipe (1).

4. The gas-material mixing device for the wet blasting of the small-section deep shaft is characterized in that the length and the pipe diameter of the mixing bin (3) are both larger than those of the feeding bin (2), and a side opening of the mixing bin (3) is welded with the feeding bin (2).

5. Gas-material mixing device for wet blasting of small-section deep shafts according to claim 1, characterized in that the transition chamber (4) is a reducer, the inlet diameter of the transition chamber (4) being greater than the outlet diameter.

6. The gas-material mixing device for the wet blasting of the small-section deep shaft according to claim 1 is characterized in that the blasting pipe (5) is a thick rubber hose and is connected with the gradual change bin (4) through a fastener bolt.

7. The gas-material mixing device for the wet blasting of the small-section deep shaft as claimed in claim 1, wherein the connection parts of the mixing bin (3), the gradual change bin (4), the material spraying pipe (5) and the air inlet pipe (7) are all connected through flanges.

8. The gas-material mixing device for the wet blasting of the small-section deep shaft as claimed in claim 7, wherein the flange connection part is provided with a rubber gasket.

9. The gas-material mixing device for the wet blasting of the small-section deep shaft according to claim 1, wherein the gas inlet pipe (7) is a steel pipe with a screw thread, and the screw thread of the compressed air reducing valve (6) is screwed with the screw thread of the steel pipe.

10. The gas-material mixing device for the wet blasting of the small-section deep shaft according to claim 1, wherein the graded discharging pipe (1), the feeding bin (2) and the graded bin (4) are all galvanized steel pipes.