CN213061989U - High-pressure rotary spraying device - Google Patents
High-pressure rotary spraying device Download PDFInfo
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- CN213061989U CN213061989U CN202021570436.1U CN202021570436U CN213061989U CN 213061989 U CN213061989 U CN 213061989U CN 202021570436 U CN202021570436 U CN 202021570436U CN 213061989 U CN213061989 U CN 213061989U
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Abstract
The utility model relates to a high-pressure rotary spraying device, which comprises a drill rod, a mud bucket, a first high-pressure pipe and a second high-pressure pipe, wherein the drill rod is of a hollow structure with two sealed ends, one end of the drill rod is provided with a first through hole, and the other end of the drill rod is provided with a tip; one end of the first high-pressure pipe is communicated with the drill rod through a first through hole, the other end of the first high-pressure pipe is communicated with the mud barrel, and a high-pressure mud pump is mounted on the first high-pressure pipe; one end of the second high-pressure pipe is communicated with the drill rod through the first through hole, and the other end of the second high-pressure pipe is communicated with an air compressor. The high-pressure rotary spraying device can convey the slurry to the lower part of the drill rod, and simultaneously convey the air to the lower part of the drill rod, so that the slurry is mixed with the air when being sprayed, and is sprayed under the action of the air, so that the slurry is further sprayed, the slurry spraying effect is improved, and the working efficiency of the high-pressure rotary spraying device is improved.
Description
Technical Field
The utility model relates to a building equipment field particularly, relates to high pressure spouts device soon.
Background
In the early 70 s of the 20 th century, the rotary spraying method was first applied to the foundation reinforcing technology in japan. In China, the foundation reinforcement by the jet grouting method is introduced at the end of the 70 s. With the progress of society and the rapid development of science and technology, buildings develop in the vertical direction, the scale of underground engineering is larger and larger, and foundation reinforcement of foundation pits plays a critical role in the construction of the whole engineering. And with the development of underground projects such as subways, tunnels, high-rise building basements and the like, the application of the jet grouting method is rapidly popularized.
The existing high-pressure rotary spraying device mainly comprises a drill rod and a rotary spraying head, wherein the lower end of the drill rod is connected with the rotary spraying head. The drilling rod transports the slurry, the slurry can flow to the rotary nozzle through the through hole in the middle of the drilling rod, and the slurry can be sprayed out from the rotary nozzle under the action of pressure. But the distance of slurry spraying is short, the spraying effect is poor, and therefore the working efficiency of the high-pressure rotary spraying device is affected.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a high pressure spouts device soon to the above-mentioned defect among the prior art.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the high-pressure rotary spraying device comprises a drill rod, a slurry barrel, an air compressor, a first high-pressure pipe and a second high-pressure pipe, wherein the drill rod is of a hollow structure with two sealed ends, one end of the drill rod is provided with a first through hole, the other end of the drill rod is provided with a tip, the peripheral surface of the drill rod is provided with a spiral blade, nozzles are arranged on two sides of the bottom of the drill rod and communicated with the inside of the drill rod, a partition plate is arranged inside the drill rod and divides the drill rod into an upper part and a lower part, the partition plate is arranged above; one end of the first high-pressure pipe simultaneously penetrates through the first through hole and the second through hole to be communicated with the lower part of the drill rod, the other end of the first high-pressure pipe is communicated with the mud barrel, and a high-pressure mud pump is mounted on the first high-pressure pipe; one end of the second high-pressure pipe is connected with the air compressor, and the other end of the second high-pressure pipe simultaneously penetrates through the first through hole and the second through hole to be communicated with the lower portion of the drill rod.
In the above technical scheme:
preferably, the nozzle is funnel-shaped, and a small opening of the nozzle extends into the drill rod. The funnel-shaped nozzle is not easily clogged during the spraying process.
Preferably, the small opening of the nozzle is in threaded connection with the drill rod. The nozzle is convenient to be replaced independently.
Preferably, the second high-pressure pipe is provided with a three-way joint, two ends of a main pipe of the three-way joint are connected with the second high-pressure pipe, and ends of the branch pipes are communicated with a water source through a high-pressure clean water pump. The first high-pressure pipe is filled with high-pressure cement paste, the second high-pressure pipe is filled with air and high-pressure clear water, high-pressure water jet and air flow coaxially jet and punch soil to form a larger gap, then the cement paste is filled into a ground to be cut and broken by a slurry pump, the nozzle rotates and lifts to mix the cement paste with soil and is solidified in the soil, and the formed high-pressure jet grouting pile is larger in diameter and firmer.
Compared with the prior art, the utility model has the advantages that:
1. the high-pressure rotary spraying device can convey the slurry to the lower part of the drill rod, and simultaneously convey the air to the lower part of the drill rod, so that the slurry is mixed with the air before being sprayed, and is sprayed under the action of the air, so that the slurry is further sprayed, the slurry spraying effect is improved, and the working efficiency of the high-pressure rotary spraying device is improved.
2. The high-pressure rotary spraying device adopts the partition plate, so that the spraying pressure of the nozzle can be enhanced, the slurry is further sprayed, the slurry spraying effect is further improved, and the working efficiency of the high-pressure rotary spraying device is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments or the related art descriptions will be briefly described below.
Fig. 1 is a schematic structural view of a high-pressure rotary spraying device according to a first embodiment.
Fig. 2 is a structural schematic view of a drill rod in the second embodiment.
Description of reference numerals:
the method comprises the following steps of 1-drilling machine, 2-high-pressure slurry pump, 3-first high-pressure pipe, 4-slurry barrel, 5-air compressor, 6-second high-pressure pipe, 7-partition plate, 8-high-pressure clean water pump, 9-three-way joint, 11-drill rod, 111-nozzle and 112-helical blade.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the following detailed description of the present invention, taken in conjunction with the accompanying drawings and the detailed description, is given in a non-limiting manner.
The high-pressure rotary spraying device comprises two embodiments.
As shown in fig. 1, the high-pressure rotary spraying device in the first embodiment includes a drill rod 11, a slurry barrel 4, an air compressor 5, a first high-pressure pipe 3 and a second high-pressure pipe 6, the drill rod 11 is of a structure with two sealed ends and a hollow interior, wherein one end of the drill rod 11 is provided with a first through hole, the other end of the drill rod is provided with a tip, the peripheral surface of the drill rod 11 is provided with a helical blade 112, two sides of the bottom of the drill rod 11 are provided with nozzles 111, the nozzles 111 are communicated with the interior of the drill rod 11, a partition plate 7 is arranged inside the drill rod 11, the partition plate 7 divides the drill rod 11 into an upper part and a lower part; one end of the first high-pressure pipe 3 simultaneously penetrates through the first through hole and the second through hole to be communicated with the lower part of the drill rod 11, the other end of the first high-pressure pipe is communicated with the mud barrel 4, and the first high-pressure pipe 3 is provided with a high-pressure mud pump 2; one end of the second high-pressure pipe 6 is connected with the air compressor 5, and the other end of the second high-pressure pipe simultaneously penetrates through the first through hole and the second through hole to be communicated with the lower part of the drill rod 11. High-pressure grout is injected into the first high-pressure pipe 3, air is injected into the second high-pressure pipe 6, two media of high-pressure grout and air are mixed in the lower part of the drill rod 11, the soil body is impacted and damaged by outward rotary spraying through the nozzle 111, and the diameter of the formed high-pressure rotary spraying pile is larger and firmer under the combined action of the high-pressure grout and the surrounding air flow of the outer ring of the high-pressure grout. The high-pressure rotary spraying device utilizes the spiral blade 112 arranged on the peripheral surface of the drill rod 11, soil in a drill hole is conveyed to the spiral blade 112, the drill rod 11 rotates to rapidly bring the soil on the spiral blade 112 out of the hole, and smooth high-pressure rotary spraying operation is guaranteed. The nozzle 111 is funnel-shaped, and a small opening of the nozzle 111 extends into the drill rod 11. The small opening of the nozzle 111 is in threaded connection with the drill rod 11.
The working principle of the high-pressure rotary spraying device of the first embodiment is as follows: first, the drilling machine 1 is started, most of the soil in the drilled hole is fed to the screw blade 112 except for a part of the soil to be crushed, and the drill rod 11 is rotated to rapidly take the soil on the screw blade 112 out of the hole. After drilling to a designed elevation, starting the high-pressure slurry pump 2 and the air compressor 5, then lifting the drill rod 11, in the process of lifting the drill rod 11, spraying jet flows of two media, namely high-pressure slurry and air outwards through a nozzle 111 of the drill rod 11 in a rotary mode, impacting and damaging a soil body, forming a high-pressure rotary spraying pile in the soil under the combined action of the high-pressure slurry and surrounding air flow of an outer ring of the high-pressure slurry, and closing the high-pressure slurry pump 2 and the air compressor 5 until an expected reinforcement height is reached. In the rotary spraying process, air and high-pressure cement slurry are mixed in the space at the lower part of the drill rod 11 and are sprayed out from the nozzles 111 at two sides of the bottom of the drill rod 11 after being uniformly mixed, so that the soil body is uniformly cut, and the phenomenon that the deep hole is bent even due to different hole diameters is avoided.
As shown in fig. 2, the high-pressure rotary spraying device in the second embodiment is different from the high-pressure rotary spraying device in the first embodiment in that a three-way joint 9 is installed on the second high-pressure pipe 6, two ends of a main pipe of the three-way joint 9 are connected with the second high-pressure pipe 6, and branch pipe ends are communicated with a water source through a high-pressure clean water pump 8.
The working principle of the high-pressure rotary spraying device of the second embodiment is as follows: when the drilling machine is started, most of the soil in the drilled hole is conveyed to the spiral blade 112 except for a part of the soil is extruded, and the drill rod 11 rotates to rapidly bring the soil on the spiral blade 112 out of the hole. After the hole is drilled to the designed elevation, the air compressor 5 and the high-pressure clean water pump 8 are started firstly, high-pressure water jet and air flow are enabled to coaxially jet and punch soil bodies to form a larger gap, then the high-pressure slurry pump 2 is started, cement slurry is injected into a ground to be cut and broken, the nozzle 111 rotates and lifts to enable the cement slurry to be mixed with the soil and to be solidified in the soil, a high-pressure rotary jet pile is formed in the soil, and the high-pressure slurry pump 2 and the air compressor 5 are closed until the expected reinforcement height is reached.
Claims (4)
1. High pressure spouts device soon, its characterized in that:
the drilling rod is of a hollow structure with two sealed ends, wherein a first through hole is formed in one end, a tip end is arranged at the other end, spiral blades are arranged on the outer peripheral surface of the drilling rod, nozzles are arranged on two sides of the bottom of the drilling rod and communicated with the inside of the drilling rod, a partition plate is arranged inside the drilling rod and divides the drilling rod into an upper part and a lower part, the partition plate is arranged above the nozzles and close to the nozzles, and a second through hole is formed in the partition plate; one end of the first high-pressure pipe simultaneously penetrates through the first through hole and the second through hole to be communicated with the lower part of the drill rod, the other end of the first high-pressure pipe is communicated with the mud barrel, and a high-pressure mud pump is mounted on the first high-pressure pipe; one end of the second high-pressure pipe is connected with the air compressor, and the other end of the second high-pressure pipe simultaneously penetrates through the first through hole and the second through hole to be communicated with the lower portion of the drill rod.
2. The high-pressure rotary spraying device according to claim 1, characterized in that: the nozzle is funnel-shaped, and a small opening of the nozzle extends into the drill rod.
3. The high-pressure rotary spraying device according to claim 2, characterized in that: the small opening of the nozzle is in threaded connection with the drill rod.
4. The high-pressure rotary spraying device according to claim 3, characterized in that: and the second high-pressure pipe is provided with a three-way joint, two ends of a main pipe of the three-way joint are connected with the second high-pressure pipe, and the ends of the branch pipes are communicated with a water source through a high-pressure clean water pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021570436.1U CN213061989U (en) | 2020-07-31 | 2020-07-31 | High-pressure rotary spraying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021570436.1U CN213061989U (en) | 2020-07-31 | 2020-07-31 | High-pressure rotary spraying device |
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| Publication Number | Publication Date |
|---|---|
| CN213061989U true CN213061989U (en) | 2021-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021570436.1U Active CN213061989U (en) | 2020-07-31 | 2020-07-31 | High-pressure rotary spraying device |
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| CN (1) | CN213061989U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114309046A (en) * | 2021-12-24 | 2022-04-12 | 广州园林建筑规划设计研究总院有限公司 | Spout device soon suitable for shallow bottom in lawn |
| CN115059050A (en) * | 2022-07-05 | 2022-09-16 | 中铁第五勘察设计院集团有限公司 | Foundation reinforcement equipment and application thereof |
-
2020
- 2020-07-31 CN CN202021570436.1U patent/CN213061989U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114309046A (en) * | 2021-12-24 | 2022-04-12 | 广州园林建筑规划设计研究总院有限公司 | Spout device soon suitable for shallow bottom in lawn |
| CN115059050A (en) * | 2022-07-05 | 2022-09-16 | 中铁第五勘察设计院集团有限公司 | Foundation reinforcement equipment and application thereof |
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