High-pressure grouting system and high-pressure grouting process

Abstract

The present application discloses a high-pressure grouting system and a high-pressure grouting process. The high-pressure grouting system includes a slurry tank, a mold, a grouting pipeline, a sludge discharge tank, and a sludge discharge pipeline. One end of the grouting pipeline is connected to the slurry tank, and the other end of the grouting pipeline is connected to the grouting hole of the mold. One end of the sludge discharge pipeline is connected to the grouting hole, and the other end of the sludge discharge pipeline is connected to the sludge discharge tank. The sludge discharge pipeline includes a parallel-connected large sludge discharge pipeline and a small sludge discharge pipeline. The large sludge discharge pipeline is provided with a large pipeline sludge discharge valve, and the small sludge discharge pipeline is provided with a small pipeline sludge discharge valve. The diameter of the large sludge discharge pipeline is larger than that of the small sludge discharge pipeline, and the small sludge discharge pipeline is located above the large sludge discharge pipeline. The technical solution provided by the present application can solve the problem in the prior art that due to incomplete pipeline circulation and gas remaining in the pipeline, defects exist in the green body, resulting in a reduction in the qualified rate of the green body.

Description

Technical Field

[0001] This application relates to the technical field of ceramic forming, and more particularly, to a high-pressure grouting system and a high-pressure grouting process. Background Art

[0002] In the field of ceramic manufacturing, especially in the field of sanitary ware manufacturing, the forming of the green body is an important step. And the grouting process is the core link of the green body forming. In the prior art, the grouting process of the green body has experienced a process from manual grouting to low-pressure grouting and then to high-pressure grouting.

[0003] In a high-pressure grouting system, it includes processes such as mold closing, purging, pipeline circulation, low-pressure grouting, grouting pressurization, sludge discharging, and consolidation.

[0004] In the prior art, when grouting into the mold, there is residual gas in the pipeline of the high-pressure grouting system, which results in defects in the green body after grouting forming and reduces the qualified rate of the green body. Summary of the Invention

[0005] This application provides a high-pressure grouting system and a high-pressure grouting process, which can solve the problem in the prior art that due to incomplete pipeline circulation and residual gas in the pipeline, defects exist in the green body and the qualified rate of the green body is reduced.

[0006] In a first aspect, an embodiment of the present invention provides a high-pressure grouting system, including:

[0007] A slurry tank;

[0008] A mold;

[0009] A grouting pipeline, one end of the grouting pipeline is connected to the slurry tank, and the other end of the grouting pipeline is connected to the grouting hole of the mold;

[0010] A sludge discharging tank; and

[0011] A sludge discharging pipeline, one end of the sludge discharging pipeline is connected to the grouting hole, and the other end of the sludge discharging pipeline is connected to the sludge discharging tank;

[0012] Wherein, the sludge discharging pipeline includes a parallel-connected large sludge discharging pipeline and a small sludge discharging pipeline. The large sludge discharging pipeline is provided with a large pipeline sludge discharging valve, the small sludge discharging pipeline is provided with a small pipeline sludge discharging valve. The diameter of the large sludge discharging pipeline is larger than that of the small sludge discharging pipeline, and the small sludge discharging pipeline is located above the large sludge discharging pipeline.

[0013] The pipeline circulation process refers to injecting new mud into the pipeline in the high-pressure grouting system and discharging the residual mud and gas in the pipeline by controlling the opening and closing of the mud tank, grouting pipeline, mold, mud discharge pipeline, and mud discharge pipe, avoiding the defects of the green body caused by the change of the physical properties of the residual mud or the existence of gas, and improving the qualified rate of the green body products. When the high-pressure grouting system provided by this solution performs the pipeline circulation process, first, the large pipeline mud discharge valve of the large mud discharge pipeline and the valve of the grouting pipeline are opened, and the grouting hole of the mold is closed. The new mud in the mud tank is injected into the pipeline in the high-pressure grouting system, so that the residual mud in the pipeline is discharged into the mud discharge tank through the large mud discharge pipeline. After the large mud discharge pipeline discharges mud for a certain period of time, the large pipeline mud discharge valve is closed, and then the small pipeline mud discharge valve is opened to discharge the residual air in the pipeline. Since the density of the gas is less than the density of the mud, during the mud discharge process, the gas floats up and enters the mud discharge tank through the small mud discharge pipeline located above the large mud discharge pipeline, which is conducive to the evacuation of the gas in the pipeline. Moreover, since the inner diameter of the small mud discharge pipeline is smaller than the inner diameter of the large mud discharge pipeline, the residual gas can quickly enter the mud discharge tank through the small mud discharge pipeline under the rectification of the small mud discharge pipeline. Therefore, by using the mud discharge pipeline provided in this solution, the problem that the residual gas in the pipeline of the high-pressure grouting system causes defects in the green body and reduces the qualified rate of the green body can be solved.

[0014] In an alternative embodiment, the small mud discharge pipeline is directly above the large mud discharge pipeline.

[0015] In an alternative embodiment, both the large pipeline mud discharge valve and the small pipeline mud discharge valve are normally closed ball valves.

[0016] In an alternative embodiment, the high-pressure grouting system further includes:

[0017] The grouting pipeline includes a parallel grouting large pipeline and a grouting small pipeline. The grouting large pipeline is provided with a large pipeline grouting valve, and the grouting small pipeline is provided with a small pipeline grouting valve. The diameter of the grouting large pipeline is larger than the diameter of the grouting small pipeline.

[0018] In an alternative embodiment, both the large pipeline grouting valve and the small pipeline grouting valve are normally closed ball valves.

[0019] In an alternative embodiment, the high-pressure grouting system includes a mud discharge three-way valve. The grouting outlet of the mud discharge three-way valve is connected to the mold of the high-pressure grouting system;

[0020] One end of the mud discharge pipeline is connected to the mud discharge outlet of the mud discharge three-way valve;

[0021] One end of the grouting pipeline is connected to the inlet of the mud discharge three-way valve.

[0022] In an alternative embodiment, the mud pressurizer of the high-pressure grouting system is arranged between the grouting pipeline and the mud tank.

[0023] In an alternative embodiment, the high-pressure grouting system includes a plurality of molds;

[0024] The number of grouting pipelines is the same as the number of molds, and each mold is connected to the slurry tank through its corresponding grouting pipeline;

[0025] The plurality of molds are connected to the sludge discharge tank through a sludge discharge pipeline.

[0026] In a second aspect, an embodiment of the present invention provides a high-pressure grouting process, which is applied to the high-pressure grouting system of the foregoing embodiment;

[0027] Among them, in the pipeline circulation process of the high-pressure grouting process, the following steps are included:

[0028] After the large sludge discharge pipeline discharges sludge for a first predetermined time, close the large pipeline sludge discharge valve of the large sludge discharge pipeline and open the small pipeline sludge discharge valve of the small sludge discharge pipeline to evacuate the air in the pipeline of the high-pressure grouting system.

[0029] In an alternative embodiment, the high-pressure grouting system further includes:

[0030] A grouting pipeline, which is arranged between the slurry tank of the high-pressure grouting system and the mold of the high-pressure grouting system to achieve grouting;

[0031] Among them, the grouting pipeline includes a parallel grouting large pipeline and a grouting small pipeline. The grouting large pipeline is provided with a large pipeline grouting valve, the grouting small pipeline is provided with a small pipeline grouting valve, and the diameter of the grouting large pipeline is larger than that of the grouting small pipeline;

[0032] In the low-pressure grouting process of the high-pressure grouting process, the following steps are included:

[0033] After the grouting small pipeline grouts for a second predetermined time, close the small pipeline grouting valve and open the large pipeline grouting valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0035] Figure 1 It is a schematic diagram of the pipeline of the high-pressure grouting system in this embodiment;

[0036] Figure 2 It is the front view of the sludge discharge pipeline in this embodiment;

[0037] Figure 3 It is the top view of the sludge discharge pipeline in this embodiment;

[0038] Figure 4 This is the front view of the grouting pipeline in this embodiment;

[0039] Figure 5 This is the top view of the grouting pipeline in this embodiment;

[0040] Figure 6 This is the flow chart of the high-pressure grouting process in this embodiment.

[0041] Icons: 10 - High-pressure grouting system; 11 - Mud tank; 12 - Mold; 13 - Mud discharge tank; 14 - Mud discharge three-way valve; 15 - Grouting three-way valve; 15a - Hand valve; 16 - Drain valve; 17 - Pressurized plunger pump; 120 - Grouting hole;

[0042] 20 - Grouting pipeline; 21 - Large grouting pipeline; 22 - Small grouting pipeline; 21a - Large pipeline grouting valve; 22a - Small pipeline grouting valve;

[0043] 30 - Mud discharge pipeline; 31 - Large mud discharge pipeline; 32 - Small mud discharge pipeline; 33 - First diaphragm pump; 31a - Large pipeline mud discharge valve; 32a - Small pipeline mud discharge valve;

[0044] 40 - Pressurized two-way valve; 41 - Cleaning two-way valve; 42 - Mud discharge two-way valve; 43 - Exhaust three-way ball valve; 44 - Curing two-way valve;

[0045] 50 - First mud main valve; 51 - Second mud main valve; 52 - Check valve; 53 - First butterfly valve; 54 - Second diaphragm pump; 55 - Second butterfly valve; 56 - Third butterfly valve. Detailed implementation manners

[0046] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. Usually, the components of the embodiments of the present application described and illustrated herein can be arranged and designed in various different configurations.

[0047] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the present application claimed, but merely represents the selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the scope of protection of the present application.

[0048] It should be noted that like reference numerals and letters refer to like items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0049] In the description of the embodiments of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the figures, or the orientation or positional relationship in which the product of this application is usually placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0050] In the description of the embodiments of the present application, it should also be noted that unless otherwise clearly defined and limited, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0051] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0052] Next, the technical solutions in the present application will be described with reference to the figures.

[0053] This embodiment provides a high-pressure grouting system 10, which can solve the problem in the prior art that due to incomplete pipeline circulation and gas remaining in the pipeline, there are defects in the green body, resulting in a reduction in the qualification rate of the green body.

[0054] Please refer to Figure 1 、 Figure 2 and Figure 3 , Figure 1 which are the pipeline schematic diagrams of the high-pressure grouting system 10 in this embodiment, Figure 2 which is the front view of the sludge discharge pipeline 30 in this embodiment, Figure 3 which is the top view of the sludge discharge pipeline 30 in this embodiment.

[0055] The high-pressure grouting system 10 includes a slurry tank 11, a mold 12, a grouting pipeline 20, a sludge discharge tank 13, and a sludge discharge pipeline 30.

[0056] One end of the grouting pipeline 20 is connected to the slurry tank 11, and the other end of the grouting pipeline 20 is connected to the grouting hole 120 of the mold 12. The slurry in the slurry tank 11 is grouted into the mold 12 through the grouting pipeline.

[0057] One end of the sludge discharge pipeline 30 is connected to the grouting hole 120, and the other end of the sludge discharge pipeline 30 is connected to the sludge discharge tank 13. When the high-pressure grouting system 10 performs the pipeline circulation process and the sludge discharge process, the discharged slurry will enter the sludge discharge tank 13 through the sludge discharge pipeline 30.

[0058] The sludge discharge pipeline 30 includes a parallel large sludge discharge pipeline 31 and a small sludge discharge pipeline 32. The large sludge discharge pipeline 31 is provided with a large pipeline sludge discharge valve 31a, and the small sludge discharge pipeline 32 is provided with a small pipeline sludge discharge valve 32a. The diameter of the large sludge discharge pipeline 31 is larger than that of the small sludge discharge pipeline 32, and the small sludge discharge pipeline 32 is located above the large sludge discharge pipeline 31.

[0059] The pipeline circulation process in the high-pressure grouting process means that by controlling the opening and closing of the slurry tank 11, the grouting pipeline 20, the mold 12, the sludge discharge pipeline 30, and the sludge discharge pipe, new slurry is injected into the pipeline in the high-pressure grouting system 10, and the residual slurry and gas in the pipeline are discharged, avoiding the defects of the green body caused by the change of the physical properties of the residual sludge or the existence of gas, and improving the qualified rate of the green body products.

[0060] When the high-pressure grouting system 10 provided by this solution performs the pipeline circulation process, first, the large pipeline sludge discharge valve 31a of the large sludge discharge pipeline 31 and the valve of the grouting pipeline 20 are opened, and the grouting hole 120 of the mold 12 is closed. The new slurry in the slurry tank 11 is injected into the pipeline in the high-pressure grouting system 10, so that the residual slurry in the pipeline is discharged into the sludge discharge tank 13 through the large sludge discharge pipeline 31. After the large sludge discharge pipeline 31 discharges sludge for a certain period of time, the large pipeline sludge discharge valve 31a of the large sludge discharge pipeline 31 is closed, and then the small pipeline sludge discharge valve 32a of the small sludge discharge pipeline 32 is opened to discharge the residual air in the pipeline. Since the density of the gas is less than the density of the slurry, during the sludge discharge process, the gas floats up and enters the sludge discharge tank 13 through the small sludge discharge pipeline 32 located above the large sludge discharge pipeline 31, which is beneficial to the evacuation of the gas in the pipeline. Moreover, since the inner diameter of the small sludge discharge pipeline 32 is smaller than the inner diameter of the large sludge discharge pipeline 31, the residual gas can quickly enter the sludge discharge tank 13 through the small sludge discharge pipeline 32 under the rectification of the small sludge discharge pipeline 32. Therefore, by using the sludge discharge pipeline 30 provided in this solution, the problem that the gas remains in the pipeline in the high-pressure grouting system 10, resulting in defects in the green body and reducing the qualified rate of the green body, can be solved.

[0061] In this embodiment, the small sludge discharge pipe 32 is directly above the large sludge discharge pipe 31, so that the distance for the gas remaining in the pipe to enter the small sludge discharge pipe 32 is short, ensuring that the gas can quickly enter the small sludge discharge pipe 32. In other specific embodiments, the relative positional relationship between the small sludge discharge pipe 32 and the large sludge discharge pipe 31 is not limited, as long as the small sludge discharge pipe 32 is higher than the large sludge discharge pipe 31.

[0062] In this embodiment, the small pipe sludge discharge valve 32a and the large pipe sludge discharge valve 31a are both normally closed ball valves. When the normally closed ball valves are not triggered, they remain in the closed state, which is beneficial to the automation and working efficiency of the high-pressure grouting system 10 and reduces the probability of misoperation. In other specific embodiments, the specific types of the small pipe sludge discharge valve 32a and the large pipe sludge discharge valve 31a are not limited, as long as the small sludge discharge pipe 32 and the large sludge discharge pipe 31 can be controlled to open and close.

[0063] In one embodiment, please refer to Figure 4 and Figure 5 , Figure 4 which is the front view of the grouting pipeline 20 in this embodiment, Figure 5 and

[0064] which is the top view of the grouting pipeline 20 in this embodiment.

[0065] The grouting pipeline 20 includes a parallel-connected large grouting pipe 21 and a small grouting pipe 22. The large grouting pipe 21 is provided with a large pipe grouting valve 21a, and the small grouting pipe 22 is provided with a small pipe grouting valve 22a. The diameter of the large grouting pipe 21 is larger than that of the small grouting pipe 22.

[0066] In the low-pressure grouting process, to control the grouting flow rate, first open the small-pipeline grouting valve 22a. The small grouting pipeline 22, in combination with the grouting pressure, can accurately control the grouting flow rate into the mold 12, thus meeting the technological requirement of flow rate control, avoiding mud splashing in the mold 12, and ensuring the quality of the green body. After grouting through the small grouting pipeline 22 for a certain period of time, when the mud in the cavity of the mold 12 stabilizes, the small-pipeline grouting valve 22a of the small grouting pipeline 22 can be closed, and then the large-pipeline grouting valve 21a of the large grouting pipeline 21 can be opened, enabling the mud to be quickly injected into the mold 12 through the large grouting pipeline 21, thereby ensuring the efficiency of low-pressure grouting.

[0067] Both the large-pipeline grouting valve 21a and the small-pipeline grouting valve 22a are normally closed ball valves. When the normally closed ball valves are not triggered, they remain in the closed state, which is beneficial to the automation and working efficiency of the high-pressure grouting system 10 and reduces the probability of misoperation. In other specific embodiments, the specific types of the large-pipeline grouting valve 21a and the small-pipeline grouting valve 22a are not limited, as long as the large-pipeline grouting valve 21a and the small-pipeline grouting valve 22a can be controlled to open and close.

[0068] The high-pressure grouting system 10 includes a sludge three-way valve 14.

[0069] The grouting outlet of the sludge three-way valve 14 is connected to the mold 12 of the high-pressure grouting system 10.

[0070] One end of the sludge discharge pipeline 30 is connected to the sludge discharge outlet of the sludge three-way valve.

[0071] One end of the grouting pipeline 20 is connected to the inlet of the sludge three-way valve.

[0072] Among them, through the sludge three-way valve 14, the grouting pipeline 20 can be conveniently and selectively connected to the mold 12 or the sludge discharge pipeline 30 for different operations.

[0073] It should be noted that in this embodiment, a hand valve 15a and a grouting three-way valve 15 are also provided between the sludge three-way valve 14 and the grouting hole 120 of the mold 12 to ensure the safe and efficient progress of the high-pressure grouting process. At the same time, one outlet of the grouting three-way valve 15 is connected to a drain valve 16 to conveniently discharge the water and gas in the mold 12.

[0074] In one embodiment, please refer back to Figure 1 , the mud pressurizer (shown as a pressure plunger pump 17 in Figure 1 ) of the high-pressure grouting system 10 is arranged between the grouting pipeline 20 and the mud tank 11. The mud pressurizer is used to control the pressure of the mud transported from the mud tank 11 to the grouting pipeline 20.

[0075] In one embodiment, to improve the efficiency of different types of green bodies, the high-pressure grouting system 10 includes multiple sets of equipment, and the multiple sets of equipment may include multiple molds 12. Please refer to Figure 1 , Figure 1 A set of equipment is shown on the right side in Figure 1 , and this set of equipment includes three molds 12. Exemplarily, the three molds 12 shown on the right side may be the inner tank, seat ring, and outer shell of a toilet respectively. It should be noted that

[0076] On the left side in

[0077] other sets of equipment may also be provided.

[0078] The number of grouting pipelines 20 is the same as the number of molds 12, and each mold 12 is connected to the slurry tank 11 through its corresponding grouting pipeline 20. That is, multiple molds 12 can perform grouting simultaneously or separately.

[0079] Multiple molds 12 are connected to the sludge discharge tank 13 through the sludge discharge pipeline 30.

[0080] It should be noted that this embodiment also provides a high-pressure grouting process. Please refer to Figure 6 , Figure 6 which is the flow chart of the high-pressure grouting process in this embodiment.

[0081] The high-pressure grouting process includes mold closing, purging after mold closing, pipeline circulation, low-pressure grouting, grouting pressurization, sludge discharge, consolidation, demolding, and dehydration processes.

[0082] The mold closing process refers to closing and locking the molds 12. The purging after mold closing process refers to cleaning the cavities of the molds 12. The pipeline circulation process refers to discharging the residual slurry and gas in the pipelines. The low-pressure grouting process refers to injecting the slurry into the molds 12 in a low-pressure state. The grouting pressurization process refers to pressurizing the slurry to improve the production efficiency of the green bodies. The sludge discharge process refers to discharging the excess slurry in the cavities of the molds 12. The consolidation process refers to injecting compressed gas into the cavities of the molds 12 to ensure the constant thickness of the absorbed slurry and the quality of the green bodies. The demolding process refers to demolding the green bodies. The dehydration process refers to discharging the excess water in the molds 12 after the demolding process is completed.

[0083] The high-pressure grouting process will be described below in combination with Figure 1 . It should be noted thatFigure 1 Three molds 12 are shown, and the three molds 12 can perform the high-pressure grouting process simultaneously or separately.

[0084] The mold closing process includes the following steps: the main cylinder of the mold 12 descends, the side mold of the mold 12 is pressurized, the main cylinder of the mold 12 descends, and the mold 12 is tilted once. Among them, the process requirement pressures for the main cylinder of the mold 12 to descend, the side mold of the mold 12 to be pressurized, and the main cylinder of the mold 12 to descend are 8 - 17 Mpa, 12 - 19 Mpa, and 12 - 19 Mpa respectively.

[0085] The purging process after mold closing includes the following steps: open the pressure - adding two - way valve 40, open the cleaning two - way valve 41, open the sludge - discharging two - way valve 42, and keep it for 5 - 15 seconds; then open the drain valve 16 and keep it for 5 - 15 seconds; then close the drain valve 16 and keep it for 3 - 10 seconds (the drain valve 16 opens and closes multiple times); finally, close the sludge - discharging two - way valve 42, the pressure - adding two - way valve 40, and the pressure - adding two - way valve 40 to complete the purging process after mold closing. Among them, the gas discharged by the sludge - discharging two - way valve 42 and the water discharged by the cleaning two - way valve 41 are pressurized by the pressure - adding two - way valve 40 and then enter the mold 12 to clean the mold 12. By opening and closing the drain valve 16 multiple times, the purging of the mold 12 is completed. It should be noted that in the purging process after mold closing, each valve needs to wait for 0.5 - 10 seconds before closing the next valve. It should be noted that in the purging process after mold closing, the opening and closing times of each valve can be adjusted according to the actual situation.

[0086] The pipeline circulation process includes the following steps: First, open the large - pipeline sludge - discharging valve 31a of the sludge - discharging large pipeline 31, open the large - pipeline grouting valve 21a of the grouting large pipeline 21, open the small - pipeline grouting valve 22a of the grouting small pipeline 22, open the first mud main valve 50, and discharge sludge for 5 - 10 seconds (the first predetermined time). Then close the large - pipeline sludge - discharging valve 31a of the sludge - discharging large pipeline 31, and open the small - pipeline sludge - discharging valve 32a of the sludge - discharging small pipeline 32 and keep it for 5 - 10 seconds to empty the air in the pipelines of the high - pressure grouting system 10. Then close the second mud main valve 51, the large - pipeline grouting valve 21a of the grouting large pipeline 21, and the small - pipeline grouting valve 22a of the grouting small pipeline 22 to complete the pipeline circulation process. It should be noted that the pipeline circulation process and the purging process after mold closing can be carried out simultaneously to save time. It should be noted that in the pipeline circulation process, the opening and closing times of each valve can be adjusted according to the actual situation.

[0087] The low-pressure grouting process includes the following steps: Open the exhaust three-way ball valve 43 and the pressurizing two-way valve 40 to connect the mold 12 to the atmosphere. Open the grouting three-way valve 15, the small-pipe grouting valve 22a of the small grouting pipe 22, and the second slurry main valve 51. After the slurry is injected into the mold 12 through the small grouting pipe 22 for a certain period of time (the second predetermined time), close the small-pipe grouting valve 22a and open the large-pipe grouting valve 21a of the large grouting pipe 21 to complete the low-pressure grouting process. It should be noted that in the low-pressure grouting process, the opening and closing times of each valve can be adjusted according to the actual situation.

[0088] The grouting pressurization process includes the following steps: Close the second slurry main valve 51 and start the pressurizing plunger pump 17. The pressurizing plunger pump 17 pressurizes the slurry in the grouting pipeline 20, and the pressurizing pressure is 0.5 - 1.8 MPa.

[0089] The sludge discharge process includes the following steps: The mold 12 is tilted twice, the pressurizing plunger pump 17 is closed, the small-pipe grouting valve 22a and the large-pipe grouting valve 21a are closed to connect the mold 12 to the sludge discharge pipeline 30. Subsequently, open the pressurizing two-way valve 40, the cleaning two-way valve 41, the sludge discharge two-way valve 42, and the large-pipe sludge discharge valve 31a of the large sludge discharge pipe 31 to discharge the sludge. Then close the grouting three-way valve 15, the large-pipe sludge discharge valve 31a of the large sludge discharge pipe 31, and the sludge discharge two-way valve 42 to complete the sludge discharge process.

[0090] The consolidation process includes the following steps: Open the curing two-way valve 44 to supply compressed gas to the cavity of the mold 12. The mold 12 is set to the horizontal state. After a period of time, close the curing two-way valve 44 and open the drain valve 16 to discharge the excess water in the cavity of the mold 12 to complete the consolidation process.

[0091] The demolding process includes the steps of separating the mold 12 and the green body. For the specific steps, those skilled in the art can refer to the existing technology for understanding, so they will not be elaborated in this article.

[0092] The dehydration process includes the steps of discharging the excess water in the mold 12 after the demolding process: Open the pressurizing two-way valve 40 and the cleaning two-way valve 41 to inject water into the mold 12; then close the cleaning two-way valve 41, open the sludge discharge two-way valve 42, and inject compressed gas into the mold 12 to discharge the excess water in the mold 12. Finally, close the sludge discharge two-way valve 42 and the pressurizing two-way valve 40 to complete the dehydration process.

[0093] Among them, it should be noted that in Figure 1A check valve 52 is provided between the pressure boosting plunger pump 17 and the first total mud valve 50, and a first butterfly valve 53 is provided between the check valve 52 and the first total mud valve 50. A second diaphragm pump 54 and a second butterfly valve 55 are provided between the first total mud valve 50 and the second total mud valve 51. A third butterfly valve 56 is provided between the second total mud valve 51 and the mud tank 11.

[0094] The above are only the preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A high-pressure grouting process, characterized in that, Including: Performing a high-pressure grouting process through a high-pressure grouting system, the high-pressure grouting system including a slurry tank, a mold, a grouting pipeline, a sludge discharge tank, and a sludge discharge pipeline; One end of the grouting pipeline is connected to the slurry tank, and the other end of the grouting pipeline is connected to the grouting hole of the mold. The grouting pipeline includes a parallel-connected large grouting pipeline and a small grouting pipeline. The large grouting pipeline is provided with a large pipeline grouting valve, and the small grouting pipeline is provided with a small pipeline grouting valve. The diameter of the large grouting pipeline is larger than that of the small grouting pipeline; one end of the sludge discharge pipeline is connected to the grouting hole, and the other end of the sludge discharge pipeline is connected to the sludge discharge tank; the sludge discharge pipeline includes a parallel-connected large sludge discharge pipeline and a small sludge discharge pipeline. The large sludge discharge pipeline is provided with a large pipeline sludge discharge valve, and the small sludge discharge pipeline is provided with a small pipeline sludge discharge valve. The diameter of the large sludge discharge pipeline is larger than that of the small sludge discharge pipeline, and the small sludge discharge pipeline is located above the large sludge discharge pipeline; Wherein, when the high-pressure grouting system performs a pipeline circulation process, the discharged slurry will enter the sludge discharge tank through the sludge discharge pipeline. When performing the pipeline circulation process, the new slurry in the slurry tank will be injected into the pipeline in the high-pressure grouting system, so that the residual slurry in the pipeline will be discharged into the sludge discharge tank through the large sludge discharge pipeline. After the large sludge discharge pipeline discharges sludge for a certain time, the large pipeline sludge discharge valve is closed, and then the small pipeline sludge discharge valve is opened to evacuate the air in the pipeline of the high-pressure grouting system.

2. The high-pressure grouting process according to claim 1, wherein The small sludge discharge pipeline is directly above the large sludge discharge pipeline.

3. The high-pressure grouting process according to claim 1, wherein Both the large pipeline sludge discharge valve and the small pipeline sludge discharge valve are normally closed ball valves.

4. The high-pressure grouting process according to claim 1, wherein Both the large pipeline grouting valve and the small pipeline grouting valve are normally closed ball valves.

5. The high-pressure grouting process according to claim 1, wherein The high-pressure grouting system includes a sludge discharge three-way valve, and the grouting outlet of the sludge discharge three-way valve is connected to the grouting hole; One end of the sludge discharge pipeline is connected to the sludge discharge outlet of the sludge discharge three-way valve; One end of the grouting pipeline is connected to the inlet of the sludge discharge three-way valve.

6. The high-pressure grouting process according to claim 1, wherein The slurry pressurizer of the high-pressure grouting system is arranged between the grouting pipeline and the slurry tank.

7. The high-pressure grouting process according to claim 6, wherein The high-pressure grouting system includes multiple molds; The number of the grouting pipelines is the same as the number of the molds, and each mold is connected to the slurry tank through its corresponding grouting pipeline; The multiple molds are connected to the sludge discharge tank through the sludge discharge pipeline.

8. The high-pressure grouting process according to claim 1, wherein In the low-pressure grouting process of the high-pressure grouting process, the following steps are included: After the second predetermined time of grouting through the small grouting pipeline, the slurry in the mold cavity is stable. Then, close the small pipeline grouting valve and open the large pipeline grouting valve, so that the slurry is quickly injected into the mold through the large grouting pipeline, thus ensuring the efficiency of low-pressure grouting.

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