A suction combined curing injection device

A spraying device and a combined technology, applied in the direction of spraying devices, spraying devices, etc., can solve problems such as blockage of the injection structure, blockage of the grouting port, and influence on the smooth infiltration of the slurry, and achieve the effect of increasing the horizontal spraying distance

Active Publication Date: 2022-04-08
SOUTHWEST PETROLEUM UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Microbe-induced calcium carbonate precipitation (MICP) technology uses the microbial mineralization that is ubiquitous in nature to induce the production of calcium carbonate crystals in the soil by spraying bacterial fluid and cementing fluid (usually a mixed solution of urea and calcium salt) inside the soil. , improve the compactness of the sand and the cementation between the particles, thereby improving the mechanical properties of the soil layer; however, when the existing grouting pipe is grouted, the grouting port at the bottom of the grouting pipe is usually equipped with a spray structure, to facilitate the injection of slurry, because high-concentration bacterial solution can quickly hydrolyze urea to form mineralized crystals, so it is easy to cause calcium carbonate crystals to accumulate and cause blockage of the injection structure, thereby affecting the smooth infiltration of subsequent slurry, especially in the face of large areas When solidifying the work object, the clogging phenomenon of the grouting port is more obvious

Method used

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  • A suction combined curing injection device
  • A suction combined curing injection device
  • A suction combined curing injection device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] like Figures 1 to 5 As shown, the present embodiment includes a cylindrical spray nozzle 8, the middle part of the spray nozzle 8 is provided with a rotary spray chamber 12, and the upper end surface of the spray nozzle 8 is provided with an outer casing 1 communicating with the rotary spray chamber 12. There is a rotating shaft 4 inside, and a disc 6 is arranged in the rotary spray chamber 12. The lower end of the rotating shaft 4 moves through the middle of the disc 6 and then extends downward, and a turbine 16 is arranged on the extension of the rotating shaft 4. Along the spray head 8 A plurality of jet orifice groups 15 communicating with the inside of the swirl spray chamber 12 are arranged at intervals on its outer peripheral wall in the circumferential direction, and a plurality of deflectors 7 are rotated on the lower surface of the disc 6, and a plurality of deflectors 7 Distributed around the turbine 16 in an annular array, an adjustment cavity 17 is opened ...

Embodiment 2

[0037] like Figures 1 to 5 As shown, this embodiment also includes an inner sleeve 3 coaxial with the outer sleeve 1, and a cylinder 2 is also provided between the outer sleeve 1 and the inner sleeve 3, and between the outer sleeve 1 and the cylinder 2 , An annular space is formed between the cylinder body 2 and the inner casing 3, and an annular baffle is arranged at the lower end of the outer casing 1, and the annular baffle seals the bottom of the annular space between the outer casing 1 and the cylinder 2, so The lower end of the cylinder 2 is provided with an annular baffle, which seals the bottom of the annular space between the inner sleeve 3 and the cylinder 2, and a plurality of shunt pipes 24 are arranged on the lower surface of the annular baffle to divert the flow. The pipe 24 communicates with the annular space between the inner casing 3 and the cylinder body 2, and a plurality of distribution pipes 24 are placed in the wall of the nozzle 8, and a plurality of di...

Embodiment 3

[0042] like Figures 1 to 5As shown, this embodiment is based on Embodiment 1. The nozzle includes a guide tube 11, a buffer chamber 9, and a plurality of air holes 10 communicating with the buffer chamber 9. The buffer chamber 9 is set in the wall of the nozzle 8, and a plurality of The air holes 10 are provided on the outer peripheral wall of the nozzle 8, one end of the guide tube 11 communicates with the buffer chamber 9, the other end of the guide tube 11 communicates with the shunt tube 24, the annular space between the outer casing 1 and the cylinder body 2 connected. The two groups of nozzles realize the pumping function of the fluid respectively, and the two groups of spray groups are respectively located above and below the jet hole group 15; Flow into the buffer chamber 9, and then evenly disperse to the wall of the pile hole 28 through the multi-channel air holes 10, and when the suction is performed, the mixed liquid of the cleaning liquid and the mud is sieved t...

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PUM

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Abstract

The invention discloses a suction-combined solidification injection device, which relates to the field of fluid injection, and specifically includes a spray head, an outer casing is arranged on the upper end surface of the nozzle, a rotating shaft is arranged inside the outer casing, and a turbine is arranged on the extension of the rotating shaft. There are multiple spray hole groups on the outer peripheral wall of the nozzle, and multiple deflectors are installed on the lower surface of the disc. There is an adjustment cavity in the disc, and a linkage assembly is installed in the adjustment cavity. The blades of the turbine are For jet orifice groups. The invention adopts the grouting method of lateral infiltration, and adopts the method of rotary spraying to push and infiltrate the slurry horizontally into the soil. Overflow the nozzle with a suitable flow rate, and increase the horizontal transmission distance of the slurry on the premise of ensuring that the bacterial cells are not separated from the slurry.

Description

technical field [0001] The invention relates to the field of fluid injection, and specifically provides a suction combined curing injection device. Background technique [0002] Microbe-induced calcium carbonate precipitation (MICP) technology uses the microbial mineralization that is ubiquitous in nature to induce the production of calcium carbonate crystals in the soil by spraying bacterial fluid and cementing fluid (usually a mixed solution of urea and calcium salt) inside the soil. , improve the compactness of the sand and the cementation between the particles, thereby improving the mechanical properties of the soil layer; however, when the existing grouting pipe is grouted, the grouting port at the bottom of the grouting pipe is usually equipped with a spray structure, to facilitate the injection of slurry, because high-concentration bacterial solution can quickly hydrolyze urea to form mineralized crystals, so it is easy to cause calcium carbonate crystals to accumulat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B05B1/14B05B1/26B05B1/30B05B1/32B05B1/34B05B15/50
CPCB05B1/14B05B1/30B05B1/267B05B15/50B05B1/32B05B1/341B05B1/34
Inventor 郭亮何肖玉何妮张敏熊柱红张锦涛曾未名彭颐祈郭馨艺姜宇宏王保权赵金龙文海旭李媛媛王泓智王雅坤王梓同廖明伟郭豪吴海龙鄢睿刘丰威路益王云翔邢雷戴启辰罗鹏刘芯邑
Owner SOUTHWEST PETROLEUM UNIV
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