CN219953368U - Mining wet-spraying machine gas material mixing device - Google Patents
Mining wet-spraying machine gas material mixing device Download PDFInfo
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- CN219953368U CN219953368U CN202321291156.0U CN202321291156U CN219953368U CN 219953368 U CN219953368 U CN 219953368U CN 202321291156 U CN202321291156 U CN 202321291156U CN 219953368 U CN219953368 U CN 219953368U
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- material mixing
- mixing device
- air inlet
- pipe
- air
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- 239000000463 material Substances 0.000 title claims abstract description 53
- 238000005065 mining Methods 0.000 title claims abstract description 15
- 238000005507 spraying Methods 0.000 title claims abstract description 15
- 239000004567 concrete Substances 0.000 claims abstract description 44
- 239000011148 porous material Substances 0.000 claims abstract description 6
- 239000007921 spray Substances 0.000 claims description 20
- 238000007789 sealing Methods 0.000 claims description 4
- 238000005422 blasting Methods 0.000 claims 1
- 238000007599 discharging Methods 0.000 abstract description 6
- 239000003245 coal Substances 0.000 abstract description 3
- 239000002002 slurry Substances 0.000 abstract description 2
- 239000002699 waste material Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000701 coagulant Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000011378 shotcrete Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Abstract
The utility model belongs to the field of coal mine wet spraying machines, and particularly relates to a gas-material mixing device of a mining wet spraying machine; an annular air inlet pipeline is arranged around the outer ring of the concrete pipeline in the air-material mixing device, the annular air inlet pipeline is communicated with the concrete pipeline through an air outlet duct along the concrete spraying direction, and an accelerator pipe and an air inlet pipe of the air-material mixing device are communicated with the annular air inlet pipeline; the air outlet pore canal of the annular air inlet pipeline forms an included angle of 30 degrees with the axis of the concrete pipeline, and has an inclination angle of 10 degrees in the clockwise direction; the air-material mixing device is improved in the aspects of reducing the number of elbows, rationalizing the interfaces and the like, and an air inlet pipeline is changed into an annular air inlet pipeline, so that the wind power loss is reduced, and the discharging speed is improved; the air outlet channels in the air-material mixing device are redistributed, the air outlet channels are inclined at a certain angle in the clockwise direction, vortex can be generated after air is output, accumulated materials at the lower part are reduced, the discharging speed of a nozzle is improved, slurry falling at the nozzle is reduced, and discharging is smoother.
Description
Technical Field
The utility model belongs to the field of coal mine wet spraying machines, and particularly relates to a gas-material mixing device of a mining wet spraying machine.
Background
The gas-material mixing device of the common wet spraying machine for coal mines is positioned at the inlet of the discharge pipe, and the mixing device has loose structure, is not compact enough and has poor aerodynamic characteristics, so that coagulant is unevenly added, the rebound rate is higher and the material waste is large in wet spraying operation. The problems of the current gas-material mixing device mainly include: firstly, the internal structure of the gas mixing pipe has problems, so that the pipe is blocked at the feed inlet of the gas mixing pipe frequently, the waste of materials is caused, the working efficiency is influenced, the workload is increased, and meanwhile, the pipe blocking can cause the reverse wind, so that the wind is directly rushed out of a hopper, and the swing cylinder cannot suck the materials; secondly, the arrangement of the air mixing pipe interface has problems, so that the air inlet of the accelerator system is impure, and the system is in fault; finally, the frequent occurrence of pipeline blockage causes the sudden increase of the pressure of the injection pipeline, which has great potential safety hazard to operators and equipment. These problems are due in part to the unreasonable design of the gas-to-liquid mixing device.
Disclosure of Invention
The utility model aims to solve the problems of the prior air-material mixing device, improves the air-material mixing device, reduces the probability of pipeline blockage, reduces the rebound rate and improves the safety performance of equipment.
The utility model provides the following technical scheme: the air-material mixing device of the mining wet spraying machine is characterized in that an annular air inlet pipeline is arranged around the outer ring of a concrete pipeline in the air-material mixing device, the annular air inlet pipeline is communicated with the concrete pipeline through an air outlet duct along the concrete spraying direction, and an accelerator pipe and an air inlet pipe of the air-material mixing device are communicated with the annular air inlet pipeline.
Further, the air outlet duct of the annular air inlet pipeline forms an included angle of 30 degrees with the axis of the concrete pipeline, and has an inclination angle of 10 degrees in the clockwise direction.
Further, the accelerator pipe and the air inlet pipe are positioned at two sides of the diameter line of the concrete pipeline, the accelerator pipe and the air inlet pipe are in X-shaped intersection while avoiding the joint of the concrete pipe, and the intersection of the accelerator pipe and the air inlet pipe is communicated.
Further, the inner wall of the concrete pipeline is provided with spiral rifling, and the rotation direction of the spiral rifling is the same as the inclination direction of the air outlet duct.
Further, the concrete pipe interfaces at the two sides of the air-material mixing device are quick-change interfaces.
Further, the gas-material mixing device comprises an outer shell and an inner spray pipe, wherein the inner spray pipe is detachably inserted into the outer shell, an annular chamber is formed between the outer shell and the inner spray pipe in an enclosing mode, the annular chamber is used as an annular air inlet pipeline, an inner hole of the inner spray pipe is used as a concrete pipeline, and sealing rings are arranged in front of and behind the annular chamber to seal a gap between the outer shell and the inner spray pipe; the accelerator pipe and the air inlet pipe are connected with the outer shell and are led into the annular cavity through the pore canal in the outer shell.
Further, the radial sinking groove on the outer wall of the inner spray pipe forms an annular chamber space, the air outlet pore canal enters from the inclined side surface of the radial sinking groove, and the outlets of the accelerator pipe and the air inlet pipe are radially parallel to the annular air inlet pipeline.
Further, a plurality of air outlet channels are uniformly distributed around the axis of the concrete pipeline.
Further, a handle is mounted on the outer housing.
Compared with the prior art, the utility model has the advantages that:
1. the gas-material mixing device has the advantages of compact and simple structure, convenient installation, light weight, high reliability, improvement of working efficiency, reduction of labor intensity of workers and the like.
2. The traditional gas-material mixing device has high failure rate and insufficient wind power, and is caused by the fact that the outer side structure of the gas mixing pipe is provided with too many elbows and unreasonable interface distribution. The gas-material mixing device is improved in the aspects of reducing the number of elbows, rationalizing the interfaces and the like, and the air inlet pipeline is changed into an annular air inlet pipeline, so that the wind power loss is reduced, and the discharging speed is improved.
3. The interface of the gas-material mixing device is redesigned, the quick-change interface is adopted, the tightness is good, and the overhaul and the installation are convenient.
4. The air outlet channels in the air-material mixing device are redistributed, the air outlet channels are inclined at a certain angle in the clockwise direction, vortex can be generated after air is output, accumulated materials at the lower part are reduced, the discharging speed of a nozzle is improved, slurry falling at the nozzle is reduced, and discharging is smoother.
5. Spiral rifling is adopted in the concrete pipeline, so that the mixture generates vortex in the concrete pipeline, the probability of pipe blockage in the spray pipe is reduced, and the safety performance of equipment is improved.
Drawings
FIG. 1 is an external view of a gas-material mixing device;
FIG. 2 is a cross-sectional view of the gas-material mixing device;
FIG. 3 is a schematic view of the angle between the air outlet duct and the axis of the concrete duct;
FIG. 4 is a schematic view of the clockwise inclination of the air outlet duct;
in the figure: 1-a concrete pipe; 1.1-spiral rifling; 2-an annular air inlet pipeline; 3-an air outlet duct; 4-an accelerator tube; 5-an air inlet pipe; 6-concrete pipe joints; 7-an outer shell; 8-an inner spray pipe; 9-a sealing ring; 10-handle.
Detailed Description
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
As shown in fig. 1 and 2: the air-material mixing device of the mining wet spraying machine is characterized in that an annular air inlet pipeline 2 is arranged around the outer ring of a concrete pipeline 1 in the air-material mixing device, the annular air inlet pipeline 2 is communicated with the concrete pipeline 1 through an air outlet duct 3 along the concrete spraying direction, and an accelerator pipe 4 and an air inlet pipe 5 of the air-material mixing device are communicated with the annular air inlet pipeline 2.
The gas-material mixing device adopts a two-section structural design, the inside is a material inlet and outlet pipe (a concrete pipeline), the outside is an air inlet pipe, the structure is compact, the weight is low, and no air leakage condition exists at the joint. The side annular air inlet pipeline is adopted, so that the air quantity loss caused by excessive air inlet bent pipes is reduced, the air inlet direction is consistent with the air outlet direction, the speed of a concrete outlet is improved, and the air inlet is more uniform.
As shown in fig. 3 and 4: the air outlet channel 3 of the annular air inlet pipeline 2 forms an included angle of 30 degrees with the axis of the concrete pipeline 1, and has an inclined angle of 10 degrees in the clockwise direction, so that the air outlet is spiral air outlet, the concrete air outlet speed is high, and the wall mounting rate is high.
And the inner wall of the concrete pipeline 1 is provided with spiral rifling 1.1, the spiral direction of the spiral rifling 1.1 is the same as the inclination direction of the air outlet pipeline 3, so that the mixture generates vortex in the concrete pipeline 1, the probability of pipe blockage is reduced, and the safety performance of equipment is improved.
As shown in fig. 1: the accelerator pipe 4 and the air inlet pipe 5 are positioned at two sides of the diameter line of the concrete pipeline 1, the accelerator pipe 4 and the air inlet pipe 5 avoid the joint 6 of the concrete pipe to form an X intersection, and the intersection of the accelerator pipe 4 and the air inlet pipe 5 is communicated; so designed, the accelerator pipe 4 does not need to be connected with pressure, and the negative pressure generated when the high-speed wind of the air inlet pipe 5 passes through the X junction sucks the accelerator in the accelerator pipe 4 together.
The concrete pipe interfaces 6 on the two sides of the air-material mixing device are quick-change interfaces, so that the quick-change can be performed after faults occur on the two sides of the pipeline, and the maintenance cost is saved.
As shown in fig. 2: the gas-material mixing device comprises an outer shell 7 and an inner spray pipe 8, wherein the inner spray pipe 8 is detachably inserted into the outer shell 7, an annular chamber is formed between the outer shell 7 and the inner spray pipe 8, the annular chamber is used as an annular air inlet pipeline 2, an inner hole of the inner spray pipe 8 is used as a concrete pipeline 1, and sealing rings 9 are arranged in front of and behind the annular chamber to seal a gap between the outer shell 7 and the inner spray pipe 8; the accelerator pipe 4 and the air inlet pipe 5 are connected with the outer shell 7, and are led into the annular cavity through a pore canal in the outer shell 7.
The radial sinking groove on the outer wall of the inner spray pipe 8 forms an annular chamber space, the air outlet channel 3 enters from the inclined side surface of the radial sinking groove, and the outlets of the accelerator pipe 4 and the air inlet pipe 5 are radially parallel to the annular air inlet pipeline 2.
The air outlet channels 3 are uniformly distributed around the axis of the concrete pipeline 1.
The outer shell 7 is provided with a handle 10 which is convenient for operators to hold and operate.
The air-material mixing device is applied to a wet spraying machine, solves the problems of pipe blockage, wind back, uneven addition of accelerator, large wind power loss and the like in industrial experiments, and has obvious effect on rebound rate. The gas-material mixing device can reduce the workload of workers, labor intensity, increase the strength of sprayed concrete and reduce the rebound rate, greatly save materials, obviously reduce construction cost, effectively avoid waste and save natural resources.
The gas-material mixing device is not only limited to mines, but also can be popularized and used in the fields of ground tunnels, common buildings, highways, railways and the like with wet concrete preparation, so that the popularization potential is huge.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. The utility model provides a mining wet blasting machine gas material mixing arrangement which characterized in that: the air-material mixing device is characterized in that an annular air inlet pipeline (2) is arranged on the outer ring of the concrete pipeline (1), the annular air inlet pipeline (2) is communicated with the concrete pipeline (1) through an air outlet duct (3) along the concrete spraying direction, and an accelerator pipe (4) and an air inlet pipe (5) of the air-material mixing device are communicated with the annular air inlet pipeline (2).
2. The mining wet-jet air-material mixing device according to claim 1, wherein: the air outlet duct (3) of the annular air inlet pipeline (2) forms an included angle of 30 degrees with the axis of the concrete pipeline (1), and has an inclination angle of 10 degrees in the clockwise direction.
3. The mining wet-jet air-material mixing device according to claim 2, wherein: the accelerator pipe (4) and the air inlet pipe (5) are positioned at two sides of the diameter line of the concrete pipeline (1), the accelerator pipe (4) and the air inlet pipe (5) avoid the X-shaped intersection of the concrete pipe joint (6), and the intersection of the accelerator pipe (4) and the air inlet pipe (5) is communicated.
4. A mining wet-jet air-material mixing device according to claim 3, characterized in that: the inner wall of the concrete pipeline (1) is provided with a spiral rifling (1.1), and the rotation direction of the spiral rifling (1.1) is the same as the inclination direction of the air outlet channel (3).
5. The mining wet-jet air-material mixing device according to claim 1, wherein: the concrete pipe interfaces (6) on the two sides of the gas-material mixing device are quick-change interfaces.
6. The mining wet-jet air-material mixing device according to claim 4, wherein: the gas-material mixing device comprises an outer shell (7) and an inner spray pipe (8), wherein the inner spray pipe (8) is detachably inserted into the outer shell (7), an annular chamber is formed between the outer shell (7) and the inner spray pipe (8), the annular chamber is used as an annular air inlet pipeline (2), an inner hole of the inner spray pipe (8) is used as a concrete pipeline (1), and sealing rings (9) are arranged in front of and behind the annular chamber to seal a gap between the outer shell (7) and the inner spray pipe (8); the accelerator pipe (4) and the air inlet pipe (5) are connected with the outer shell (7) and are led into the annular cavity through a pore canal in the outer shell (7).
7. The mining wet-jet air-material mixing device according to claim 6, wherein: the radial sinking groove on the outer wall of the inner spray pipe (8) forms an annular chamber space, the air outlet pore canal (3) enters from the inclined side surface of the radial sinking groove, and the outlets of the accelerator pipe (4) and the air inlet pipe (5) are radially parallel to the annular air inlet pipeline (2).
8. The mining wet-jet air-material mixing device according to claim 1, wherein: the air outlet channels (3) are uniformly distributed around the axis of the concrete pipeline (1).
9. The mining wet-jet air-material mixing device according to claim 6, wherein: the outer shell (7) is provided with a handle (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321291156.0U CN219953368U (en) | 2023-05-25 | 2023-05-25 | Mining wet-spraying machine gas material mixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321291156.0U CN219953368U (en) | 2023-05-25 | 2023-05-25 | Mining wet-spraying machine gas material mixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219953368U true CN219953368U (en) | 2023-11-03 |
Family
ID=88545357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321291156.0U Active CN219953368U (en) | 2023-05-25 | 2023-05-25 | Mining wet-spraying machine gas material mixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219953368U (en) |
-
2023
- 2023-05-25 CN CN202321291156.0U patent/CN219953368U/en active Active
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