Double-liquid mixed plug for large-aperture super-deep curtain grouting

Abstract

The utility model discloses a kind of double liquid mixing plugs for large aperture super deep curtain grouting, belong to grouting plug technical field, including main body mechanism and mixing mechanism, the main body mechanism includes plug body, cement slurry grouting pipe and sodium silicate grouting pipe, the inside fixedly connected with partition plate of plug body;The mixing mechanism includes mixing head and protective sleeve;The utility model is guided by built-in guide in mixing head to slurry, and built-in cross intercepting piece in guide, intercept the part of slurry that condenses in advance while guiding slurry, prevent premature condensation part from flowing to liquid outlet to cause liquid outlet blockage, and mixing head is detachable, it is convenient to maintain and the replacement of guide piece, protective sleeve is protected at the connecting place of mixing head and plug body, enhance the compression resistance of mixing head, cavity is left between mixing head and protective sleeve, can provide pressure relief space, prevent overpressure damage mixing head to cause mixing head leakage.

Description

Technical Field

[0001] This utility model specifically relates to a dual-liquid mixing plug for large-aperture ultra-deep curtain grouting, belonging to the field of grouting plug technology. Background Technology

[0002] In existing grouting construction technologies, curtain grouting is a key process, which aims to form a barrier to prevent groundwater seepage by injecting grout. The grouting dual-liquid mixing plug is a special device designed for engineering seepage prevention and plugging. Its core function is to achieve precise mixing and injection of cement grout and quick-setting agent at the target location of the borehole to meet the seepage control needs under complex geological conditions.

[0003] In existing dual-liquid grouting plug technology, when the grout flows at high speed in the mixer, the two liquid materials can be effectively mixed to form the required cured mortar. However, this type of grouting plug has some shortcomings in use. For example, it lacks an effective guiding mechanism when the grout is discharged, and cannot guide the grout to flow along a predetermined path. This may lead to blockage of the grout at the outlet, especially when the grout contains solid particles. These particles are prone to coagulation and block the grouting outlet. In addition, existing grouting plugs have insufficient interception of already coagulated grout, and cannot effectively prevent these coagulated parts from continuing to enter the grouting area, thereby affecting the grouting effect and construction quality. Therefore, for applications such as large-diameter ultra-deep curtain grouting, which have high requirements for grout fluidity and construction accuracy, these technical defects are particularly prominent.

[0004] To address the aforementioned technical issues, a dual-liquid mixing plug for large-aperture ultra-deep curtain grouting is proposed. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a dual-liquid mixing plug for large-aperture ultra-deep curtain grouting. This plug aims to guide the grout while intercepting the prematurely solidified portion, preventing it from flowing to the outlet and causing blockage. A cavity is provided between the mixing head and the protective sleeve to provide pressure relief space, preventing overpressure damage to the mixing head and leakage. It also facilitates the maintenance of the mixing head and the replacement of the guide components.

[0006] A dual-liquid mixing plug for large-aperture ultra-deep curtain grouting includes a main body and a mixing mechanism. The main body includes a plug body, a cement grout injection pipe and a water glass injection pipe. A partition plate is fixedly connected inside the plug body. Both the cement grout injection pipe and the water glass injection pipe pass through the interior of the plug body, and one end of each pipe passes through the partition plate.

[0007] The mixing mechanism includes a mixing head and a protective sleeve. The outer side of the mixing head is integrally formed with a limiting part. The protective sleeve is sleeved on the outer side of the mixing head. The mixing head is threaded onto one end of the plug body. The protective sleeve is threadedly connected to the plug body. A guide is engaged inside the mixing head.

[0008] Furthermore, an insulating sleeve is fixedly connected to the inner wall of the plug.

[0009] Furthermore, reinforcing plates are fixedly connected at equal intervals inside the plug body, and both the cement grout injection pipe and the water glass injection pipe penetrate the reinforcing plates.

[0010] Furthermore, the partition plate has two retaining rings that engage internally, and a sealing ring is fixedly connected to one side of each retaining ring.

[0011] Furthermore, the inner walls of both the cement grouting pipe and the water glass grouting pipe are coated with tungsten carbide.

[0012] Furthermore, the guide includes a cross-shaped interceptor and a guide cup, with the cross-shaped interceptor integrally formed inside the guide cup.

[0013] Beneficial effects:

[0014] This invention guides the slurry by incorporating a guide component within the mixing head, and a cross-shaped interceptor component within the guide component. This intercepts prematurely solidified portions of the slurry while guiding it, preventing them from flowing to the outlet and causing blockage. The mixing head is designed to be detachable for easy maintenance and guide component replacement. A protective sleeve protects the connection between the mixing head and the plug, enhancing the mixing head's pressure resistance. A cavity between the mixing head and the protective sleeve provides pressure relief space, preventing overpressure damage to the mixing head and subsequent leakage. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the connection structure of the plug body in this utility model;

[0017] Figure 3 This is a cross-sectional view of the plug body in this utility model;

[0018] Figure 4 This is a cross-sectional view of the mixing head in this utility model;

[0019] Figure 5 This is a cross-sectional view of the partition plate in this utility model.

[0020] In the diagram: 10. Main body; 11. Plug; 12. Cement grouting pipe; 13. Water glass grouting pipe; 14. Insulation sleeve; 15. Reinforcing plate; 16. Divider plate; 17. Tungsten carbide coating; 18. Sealing ring; 19. Fixing ring; 20. Mixing mechanism; 21. Mixing head; 22. Limiting part; 23. Guide component; 24. Protective sleeve; 25. Cross interceptor component; 26. Guide cup. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-5 As shown, a dual-liquid mixing plug for large-aperture ultra-deep curtain grouting consists of a main body 10 and a mixing mechanism 20.

[0023] The main structure 10 includes a plug body 11, a cement grouting pipe 12, and a water glass grouting pipe 13. A partition plate 16 is fixedly connected inside the plug body 11. The cement grouting pipe 12 and the water glass grouting pipe 13 both pass through the interior of the plug body 11, and one end of the cement grouting pipe 12 and the water glass grouting pipe 13 both pass through the partition plate 16.

[0024] As a technical optimization of this utility model, in order to prevent leakage at the partition plate 16, two fixing rings 19 are engaged inside the partition plate 16, and a sealing ring 18 is fixedly connected to one side of the fixing ring 19.

[0025] As a technical optimization of this utility model, in order to prevent the grout from solidifying due to low temperature, an insulation sleeve 14 is fixedly connected to the inner wall of the plug body 11, and reinforcing plates 15 are fixedly connected at equal intervals inside the plug body 11. The cement grouting pipe 12 and the water glass grouting pipe 13 both penetrate the reinforcing plate 15, and the reinforcing plate 15 enhances the compressive strength of the plug body 11.

[0026] As a technical optimization of this utility model, in order to adapt the cement grouting pipe 12 and the water glass grouting pipe 13 to highly abrasive grout, the inner walls of both the cement grouting pipe 12 and the water glass grouting pipe 13 are provided with a tungsten carbide coating 17.

[0027] The mixing mechanism 20 includes a mixing head 21 and a protective sleeve 24. A limiting part 22 is integrally formed on the outer side of the mixing head 21. The protective sleeve 24 is sleeved on the outer side of the mixing head 21. The mixing head 21 is threaded onto one end of the plug body 11. The protective sleeve 24 is threadedly connected to the plug body 11. A guide member 23 is engaged inside the mixing head 21. The guide member 23 is composed of a cross interceptor 25 and a guide cup 26. The cross interceptor 25 is integrally formed inside the guide cup 26. The guide cup 26 is engaged with the mixing head 21 and the plug body 11.

[0028] Working principle: Cement slurry flows to mixing head 21 through cement slurry grouting pipe 12, and water glass slurry, as a quick-setting agent, flows to mixing head 21 through water glass grouting pipe 13. Cement slurry and water glass slurry flow in mixing head 21. After passing through cross-shaped interceptor 25, the solidified part inside the slurry is initially intercepted. As the path of the slurry narrows, it will swirl downward inside mixing head 21 under the grouting pressure, thus completing the mixing. After passing through cross-shaped interceptor 25, the prematurely solidified part is intercepted and flows out as a paste. Insulation sleeve 14 ensures the temperature of the slurry and prevents low temperature from affecting the fluidity of the slurry. When too much blockage is blocked by cross-shaped interceptor 25 and affects the discharge, the protective sleeve 24 can be rotated to remove the protective sleeve 24, and the mixing head 21 can be disassembled for maintenance. The guide part 23 inside the mixing head 21 can be taken out for cleaning or replacement.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0030] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A dual-liquid mixing plug for large-aperture ultra-deep curtain grouting, comprising a main body (10) and a mixing mechanism (20), characterized in that: The main body (10) includes a plug (11), a cement grouting pipe (12), and a water glass grouting pipe (13). A partition plate (16) is fixedly connected inside the plug (11). The cement grouting pipe (12) and the water glass grouting pipe (13) both penetrate inside the plug (11). One end of the cement grouting pipe (12) and the water glass grouting pipe (13) both penetrate through the partition plate (16). The mixing mechanism (20) includes a mixing head (21) and a protective sleeve (24). The outer side of the mixing head (21) is integrally formed with a limiting part (22). The protective sleeve (24) is sleeved on the outer side of the mixing head (21). The mixing head (21) is threadedly fitted onto one end of the plug body (11). The protective sleeve (24) is threadedly connected to the plug body (11). The mixing head (21) has a guide (23) engaged inside.

2. The dual-liquid mixing plug for large-aperture ultra-deep curtain grouting as described in claim 1, characterized in that: The inner wall of the plug (11) is fixedly connected to an insulation sleeve (14).

3. The dual-liquid mixing plug for large-aperture ultra-deep curtain grouting as described in claim 1, characterized in that: The plug body (11) is fixedly connected with reinforcing plates (15) at equal intervals inside, and the cement grouting pipe (12) and water glass grouting pipe (13) both penetrate the reinforcing plates (15).

4. The dual-liquid mixing plug for large-aperture ultra-deep curtain grouting as described in claim 1, characterized in that: The partition plate (16) has two retaining rings (19) inside, and a sealing ring (18) is fixedly connected to one side of the retaining ring (19).

5. The dual-liquid mixing plug for large-aperture ultra-deep curtain grouting as described in claim 1, characterized in that: The inner walls of the cement grouting pipe (12) and the water glass grouting pipe (13) are both coated with tungsten carbide (17).

6. The dual-liquid mixing plug for large-aperture ultra-deep curtain grouting as described in claim 1, characterized in that: The guide (23) includes a cross-shaped interceptor (25) and a guide cup (26), wherein the cross-shaped interceptor (25) is integrally formed inside the guide cup (26).

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