Cement-water glass double-liquid grouting device provided with water glass spray head

Abstract

The utility model provides a cement-water glass double-liquid grouting device with a water glass nozzle. The cement-water glass double-liquid grouting device comprises a water glass conveying pipeline, the water glass nozzle, a cement slurry conveying pipeline, a three-way mixing pipe and an output pipeline, the three-way mixing pipe is provided with a water glass feeding hole, a cement paste feeding hole and a double-liquid grouting discharging hole; the water glass conveying pipeline penetrates through the water glass feeding hole and is fixedly connected with the water glass spray head; the cement paste conveying pipeline is mounted at the cement paste feeding hole and is communicated with the cement paste feeding hole; and the output pipeline is arranged at the double-liquid grouting discharge hole and is communicated with the double-liquid grouting discharge hole. Compared with the prior art, backflow is not prone to occurring, mixed slurry can be effectively prevented from flowing back into the supercharging device, and cement slurry and water glass are prevented from being polluted; the mixing container is small in size, slurry mixing is more sufficient, the solidification time can be shortened, and construction in a narrow space is facilitated; the device is simple in structure, convenient to operate, cheap, easy to obtain and high in practicability.

Description

Technical fields:

[0001] This utility model relates to a grouting device used in concrete products, specifically a cement-water glass dual-liquid grouting device equipped with a water glass nozzle. Background technology:

[0002] Cement-water glass double-liquid grouting is a commonly used construction method in the infrastructure construction industry. It is mainly used for seepage prevention, water plugging, and reinforcement of concrete structures. It has the advantages of using common materials, wide availability, low price, environmental friendliness, simple operation, and quick and effective results.

[0003] Current mainstream cement-water glass dual-liquid grouting construction uses a double-pipe device. The inner short pipe transports cement grout, while the outer long pipe transports water glass grout and provides space for mixing and reaction. This structure has the following drawbacks: 1) This device requires a large volume and occupies a lot of space, making it unsuitable for confined spaces; 2) Incomplete mixing easily leads to material waste, which is detrimental to construction and cost control; 3) The grout is prone to backflow, causing contamination of both cement grout and water glass. Therefore, this invention provides a cement-water glass dual-liquid grouting device equipped with a water glass nozzle to solve the above problems. Summary of the Invention:

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a cement-water glass dual-liquid grouting device equipped with a water glass nozzle. This device can fully mix the two grouts, preventing backflow and pipe blockage, and effectively reducing volume and material usage.

[0005] The present invention adopts the following technical solution:

[0006] This utility model provides a cement-water glass dual-liquid grouting device equipped with a water glass nozzle, including a water glass conveying pipe, a water glass nozzle, a cement slurry conveying pipe, a three-way mixing pipe, and an output pipe; the three-way mixing pipe is provided with a water glass inlet, a cement slurry inlet, and a dual-liquid grouting outlet; the water glass conveying pipe passes through the water glass inlet and is fixedly connected to the water glass nozzle, and the water glass nozzle is distributed inside the three-way mixing pipe; the cement slurry conveying pipe is installed at the cement slurry inlet and communicates with the cement slurry inlet; the output pipe is installed at the dual-liquid grouting outlet and communicates with the dual-liquid grouting outlet.

[0007] Furthermore, the water glass nozzle includes a spray pipe connected to a water glass delivery pipe; the end of the spray pipe is open, and a crossbar or wedge block is provided at the end of the spray pipe.

[0008] Furthermore, the water glass nozzle includes a spray pipe connected to a water glass delivery pipe; the end of the spray pipe is closed, and several drill holes are provided on the pipe wall of the spray pipe, the axis of the drill holes is at a certain angle to the axis of the spray pipe; the drill holes are conical holes, and their diameter gradually decreases from the inside to the outside.

[0009] Furthermore, the three-way mixing pipe includes a pipe body and a pipe plug, the pipe plug being detachably connected to the pipe body; the pipe plug is provided with a through hole, which is a water glass inlet, and the water glass conveying pipe passes through the through hole and is fixedly connected to the water glass nozzle.

[0010] Furthermore, a sealing ring is provided at the connection between the water glass delivery pipe and the pipe plug, and a sealing ring is provided at the connection between the pipe plug and the pipe body.

[0011] Furthermore, the water glass delivery pipeline includes a water glass input pipe, a first U-shaped bend, and a straight pipe; the water glass input pipe is connected to one end of the first U-shaped bend, the other end of the first U-shaped bend is connected to one end of the straight pipe, and the other end of the straight pipe passes through the water glass inlet and is fixedly connected to the water glass nozzle; a first ball valve is provided on the straight pipe.

[0012] Furthermore, the cement slurry conveying pipeline includes a cement slurry input pipe, a second U-shaped bend, and an L-shaped bend; the cement slurry input pipe is connected to one end of the second U-shaped bend, the other end of the second U-shaped bend is connected to one end of the L-shaped bend, the other end of the L-shaped bend is fixedly connected to a tee mixing pipe, and the L-shaped bend is connected to the cement slurry inlet; a second ball valve is provided on the L-shaped bend.

[0013] Furthermore, the output pipe includes a reducing pipe and a grouting pipe; one end of the reducing pipe is fixedly connected to the tee mixing pipe, and the reducing pipe is connected to the dual-liquid grouting outlet; the other end of the reducing pipe is connected to the grouting pipe; the diameter of the reducing pipe is smaller than the diameter of the tee mixing pipe.

[0014] Furthermore, the end of the grouting pipe is provided with an expansion body, the shape and specifications of which are adapted to the grouting hole of the device to be grouted, and the expansion body can be snapped into the grouting hole of the device to be grouted.

[0015] Furthermore, the water glass inlet and the dual-liquid grout outlet are respectively located at both ends of the three-way mixing pipe; the cement slurry inlet is located at the bottom of the three-way mixing pipe, distributed below the water glass inlet.

[0016] The beneficial effects of this utility model are:

[0017] This invention utilizes a T-connector to connect the cement slurry injection pipe and the water glass injection pipe, and then uses a nozzle to fully mix the water glass slurry and cement slurry. Compared with the prior art, the advantages of this solution are:

[0018] (1) It is not easy to backflow. The water glass nozzle can control the backflow within the nozzle range. In addition, the U-shaped bend design can also prevent the slurry from backflowing. If the equipment fails and backflow occurs, the U-shaped bend connected to the nozzle can effectively prevent the mixed slurry from backflowing into the pressurization device, thus avoiding contamination of cement slurry and water glass.

[0019] (2) Compared with traditional mixing devices, the slurry in this application is mixed more thoroughly, which can shorten the setting time, reduce the length of the device, and facilitate construction in confined spaces;

[0020] (3) This device has a simple structure, is easy to operate, and is simple to manufacture, cheap and readily available; it is easy to clean, and each time only the nozzle needs to be removed for rinsing, without needing to rinse the entire device. Attached image description:

[0021] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0022] Figure 2 This is a cross-sectional view of an embodiment of the present utility model;

[0023] Figure 3 This is a schematic diagram of the plug structure in an embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of a water glass nozzle with a crossbar, as shown in an embodiment of the present invention.

[0025] Figure 5 This is a schematic diagram of a water glass nozzle with a hole drilled in the tube body, as described in an embodiment of this utility model.

[0026] The labels in the attached diagram are:

[0027] 1. Water glass inlet pipe; 2. Cement slurry inlet pipe; 3. First U-shaped bend; 4. First ball valve; 5. Straight pipe; 6. L-shaped bend; 7. Pipe plug; 8. T-junction mixing pipe; 9. Reducer; 10. Grouting pipe; 11. Water glass nozzle; 12. Second U-shaped bend; 13. Second ball valve; 14. Expansion body. Detailed implementation method:

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0029] Example 1

[0030] See Figures 1-2 This utility model provides a cement-water glass dual-liquid grouting device equipped with a water glass nozzle, including a water glass conveying pipe, a water glass nozzle 11, a cement slurry conveying pipe, a three-way mixing pipe 8, and an output pipe.

[0031] The three-way mixing pipe 8 is equipped with a water glass inlet, a cement slurry inlet, and a dual-liquid grouting outlet. The water glass inlet and the dual-liquid grouting outlet are respectively located at both ends of the three-way mixing pipe 8, and the cement slurry inlet is located at the bottom of the three-way mixing pipe 8, below the water glass inlet.

[0032] A water glass delivery pipe passes through the water glass inlet and is fixedly connected to a water glass nozzle 11, which is distributed inside the three-way mixing pipe 8. A cement slurry delivery pipe is installed at the cement slurry inlet and is connected to it. An output pipe is installed at the dual-liquid grout outlet and is connected to it.

[0033] In application, water glass is sprayed into the three-way mixing pipe 8 through the water glass nozzle 11 via the water glass delivery pipe, and cement slurry is sprayed into the three-way mixing pipe 8 via the cement slurry delivery pipe. After the two materials react in the three-way mixing pipe 8, they flow out through the output pipe and are used to grout the components to be grouted.

[0034] Example 2

[0035] The main structure of this embodiment is the same as that of embodiment 1, except that this embodiment defines the specific structure of the water glass nozzle 11.

[0036] Reference Figure 4 In this embodiment, the water glass nozzle 11 includes a spray pipe connected to a water glass delivery pipe. The end of the spray pipe is open, and a crossbar or wedge block is welded to the end of the spray pipe.

[0037] When a crossbar is used, both ends of the crossbar are welded to the ends of the injection pipe, and the width of the crossbar is smaller than the inner diameter of the injection pipe. When a wedge is used, the pointed ends of the wedge face inward, and the other two ends of the wedge are welded to the ends of the injection pipe. The use of crossbars or wedges reduces the flow area to increase pressure, while also acting as a flow divider to increase jet velocity and thus improve the mixing degree of the slurry.

[0038] In other embodiments of this utility model, the end of the injection pipe can be configured as a closed type, see Figure 5Several holes are drilled into the wall of the jet pipe, allowing the water glass slurry to be injected into the cement slurry at high speed through these holes, ensuring thorough mixing and a rapid chemical reaction. Furthermore, the axis of the drill holes is at a certain angle to the axis of the jet pipe, and the holes are tapered, with their diameter gradually decreasing from the inside to the outside. This increases the jet velocity, enhances the mixing effect, improves the overall mixing efficiency, and also prevents backflow.

[0039] Example 3

[0040] The main structure of this embodiment is the same as that of embodiment 2, except that the specific structure of the three-way mixing pipe 8 is defined in this embodiment.

[0041] Reference Figures 1-3 In this embodiment, the three-way mixing pipe 8 includes a pipe body and a pipe plug 7. The pipe plug 7 is detachably connected to the pipe body (threaded connection), and a sealing ring is provided at the connection between the pipe plug 7 and the pipe body. The pipe plug 7 is provided with a through hole, which is a water glass inlet. The water glass conveying pipe passes through the through hole and is fixedly connected to the water glass nozzle 11.

[0042] The water glass delivery pipe and the pipe plug 7 can be configured as either a movable connection or a fixed connection. When configured as a movable connection, a sealing ring is provided at the connection between the water glass delivery pipe and the pipe plug 7 to enhance the structural sealing performance.

[0043] Example 4

[0044] The main structure of this embodiment is the same as that of embodiment 3, except that this embodiment specifies the specific structure of the water glass delivery pipeline and the cement slurry delivery pipeline.

[0045] Reference Figure 1 In this embodiment, the water glass conveying pipeline includes a water glass input pipe 1, a first U-shaped bend 3, and a straight pipe 5. The water glass input pipe 1 is connected to one end of the first U-shaped bend 3, and the other end of the first U-shaped bend 3 is connected to one end of the straight pipe 5. The other end of the straight pipe 5 passes through the water glass inlet and is fixedly connected to the water glass nozzle 11. A first ball valve 4 is installed on the straight pipe 5. The cement slurry conveying pipeline includes a cement slurry input pipe 2, a second U-shaped bend 12, and an L-shaped bend 6. The cement slurry input pipe 2 is connected to one end of the second U-shaped bend 12, and the other end of the second U-shaped bend 12 is connected to one end of the L-shaped bend 6. The other end of the L-shaped bend 6 is fixedly connected to a three-way mixing pipe 8, and the L-shaped bend 6 communicates with the cement slurry inlet. A second ball valve 13 is installed on the L-shaped bend 6.

[0046] In this embodiment, the arrangement of the first U-shaped bend 3 and the second U-shaped bend 12 can effectively prevent the mixed slurry from flowing back into the pressurization device and contaminating the cement slurry and water glass.

[0047] In application, water glass is sequentially injected into the three-way mixing pipe 8 through water glass inlet pipe 1, first U-shaped bend pipe 3, first ball valve 4, straight pipe 5, and water glass nozzle 11. Simultaneously, cement slurry is sequentially injected into the three-way mixing pipe 8 through cement slurry inlet pipe 2, second U-shaped bend pipe 12, second ball valve 13, and L-shaped bend pipe 6. The water glass and cement slurry meet at the outlet of water glass nozzle 11, forming turbulence, thoroughly mixing, and undergoing a chemical reaction.

[0048] Example 5

[0049] The main structure of this embodiment is the same as that of embodiment 4, except that this embodiment specifies the specific structure of the cement slurry conveying pipeline.

[0050] Reference Figures 1-2 In this embodiment, the output pipe includes a reducing pipe 9 and a grouting pipe 10. One end of the reducing pipe 9 is fixedly connected to the three-way mixing pipe 8 and is connected to the dual-liquid grouting outlet. The other end of the reducing pipe 9 is connected to the grouting pipe 10. The diameter of the reducing pipe 9 is smaller than the diameter of the three-way mixing pipe 8. When the dual-liquid grout enters the reducing pipe 9 with a smaller diameter from the three-way mixing pipe 8 with a larger diameter, the flow rate of the grout can be increased.

[0051] In this embodiment, the end of the grouting pipe 10 is provided with an expansion body. The shape and specifications of the expansion body are adapted to the grouting hole of the device to be grouted. The expansion body can be snapped into the grouting hole of the device to be grouted to block the grouting hole and ensure the grouting quality. The pipe lengths on both sides of the grouting pipe 10 can be determined according to the actual situation. The pipe length can be shortened when the construction site is relatively small.

[0052] The above are merely preferred embodiments of this utility model. The scope of protection of this utility model is not limited to the above embodiments. All technical solutions within the scope of this utility model are within the scope of protection of this utility model. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should be considered within the scope of protection of this utility model.

Claims

1. A cement-sodium silicate double-liquid grouting device with sodium silicate nozzles, characterized in that it comprises a sodium silicate delivery pipeline, a sodium silicate nozzle (11), a cement slurry delivery pipeline, a three-way mixing pipe (8) and an output pipeline; the three-way mixing pipe (8) is provided with a sodium silicate inlet, a cement slurry inlet and a double-liquid grouting outlet; the sodium silicate delivery pipeline passes through the sodium silicate inlet and is fixedly connected with the sodium silicate nozzle (11), which is distributed inside the three-way mixing pipe (8); the cement slurry delivery pipeline is installed at the cement slurry inlet and communicates with the cement slurry inlet; and the output pipeline is installed at the double-liquid grouting outlet and communicates with the double-liquid grouting outlet.

2. The cement-sodium silicate double-liquid grouting device with sodium silicate nozzles according to claim 1, characterized in that the sodium silicate nozzle (11) comprises a spray pipe connected with the sodium silicate delivery pipeline; the end of the spray pipe is open, and the end of the spray pipe is provided with a crossbar or a wedge-shaped block.

3. The cement-sodium silicate double-liquid grouting device with sodium silicate nozzles according to claim 1, characterized in that the sodium silicate nozzle (11) comprises a spray pipe connected with the sodium silicate delivery pipeline; the end of the spray pipe is closed, a plurality of drill holes are arranged on the pipe wall of the spray pipe, and the axes of the drill holes are at an angle to the axis of the spray pipe; the drill holes are tapered holes with a diameter gradually decreasing from inside to outside.

4. The cement-sodium silicate double-liquid grouting device with sodium silicate nozzles according to claim 1, characterized in that the three-way mixing pipe (8) comprises a pipe body and a pipe plug (7) detachably connected with the pipe body; the pipe plug (7) is provided with a through hole, which is the sodium silicate inlet, and the sodium silicate delivery pipeline passes through the through hole and is fixedly connected with the sodium silicate nozzle (11).

5. The cement-sodium silicate double-liquid grouting device with sodium silicate nozzles according to claim 4, characterized in that a sealing ring is arranged at the connection between the sodium silicate delivery pipeline and the pipe plug (7), and a sealing ring is arranged at the connection between the pipe plug (7) and the pipe body.

6. The cement-sodium silicate double-liquid grouting device with sodium silicate nozzles according to claim 1, characterized in that the sodium silicate delivery pipeline comprises a sodium silicate input pipe (1), a first U-shaped bend pipe (3) and a straight pipe (5); the sodium silicate input pipe (1) is connected with one end of the first U-shaped bend pipe (3), the other end of the first U-shaped bend pipe (3) is connected with one end of the straight pipe (5), the other end of the straight pipe (5) passes through the sodium silicate inlet and is fixedly connected with the sodium silicate nozzle (11), and the straight pipe (5) is provided with a first ball valve (4).

7. The cement-sodium silicate double-liquid grouting device with sodium silicate nozzles according to claim 1, characterized in that the cement slurry delivery pipeline comprises a cement slurry input pipe (2), a second U-shaped bend pipe (12) and an L-shaped bend pipe (6); ​ ​ ​ ​ ​ ​ ​ The cement slurry input pipe (2) is connected with one end of the second U-shaped elbow pipe (12), the other end of the second U-shaped elbow pipe (12) is connected with one end of the L-shaped elbow pipe (6), the other end of the L-shaped elbow pipe (6) is fixedly connected with the three-way mixing pipe (8), and the L-shaped elbow pipe (6) is in communication with the cement slurry feeding port; the second ball valve (13) is arranged on the L-shaped elbow pipe (6). 8.The cement-sodium silicate double-liquid grouting device with water glass nozzle according to claim 1, characterized in that, The output pipeline comprises a reducing pipe (9) and a grouting pipe (10); One end of the reducing pipe (9) is fixedly connected with the three-way mixing pipe (8), and the reducing pipe (9) is in communication with the double-liquid grouting discharge port; the other end of the reducing pipe (9) is connected with the grouting pipe (10); The diameter of the reducing pipe (9) is smaller than that of the three-way mixing pipe (8). 9.The cement-sodium silicate double-liquid grouting device with water glass nozzle according to claim 8, characterized in that, The distal end of the grouting pipe (10) is provided with a bulge, the shape and size of the bulge are matched with the grouting hole of the grouting device, and the bulge can be clamped at the grouting hole of the grouting device. 10.The cement-sodium silicate double-liquid grouting device with water glass nozzle according to claim 1, characterized in that, The water glass feeding port and the double-liquid grouting discharge port are arranged at two ends of the three-way mixing pipe (8) respectively; the cement slurry feeding port is arranged at the bottom of the three-way mixing pipe (8) and is distributed below the water glass feeding port.

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