Preparation system for recycling slurry
By connecting the new mud tank and the circulation tank to the trench in the mud circulation system, and using pumps to pump out the old mud and inject the new mud, the problem of collapse caused by low mud water level was solved, and construction safety and efficiency were improved.
Patent Information
- Application Number
- CN202522285382.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-29
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2035-10-29
AI Technical Summary
In the existing technology, the new slurry tank is connected to the forming tank through a circulation tank. The old slurry cannot be directly injected into the forming tank during the mixing process, which leads to the mud water level inside the forming tank being too low and posing a risk of collapse.
Design a mud recycling preparation system, in which a new mud tank and a circulation tank are connected to the forming tank respectively. The old mud is pumped to the circulation tank and new mud is directly injected through the new mud tank to keep the mud water level inside the forming tank stable and avoid the water level from being too low.
This effectively avoids the risk of collapse caused by excessively low mud water levels inside the trench, ensuring construction safety and improving mud utilization efficiency.
Smart Images

Figure CN223647058U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of mud recycling, and in particular to a mud recycling preparation system. Background Technology
[0002] Diaphragm walls are rigid wall structures used for deep foundation pit support and underground seepage prevention. They are formed by excavating trenches in sections within the soil layer and pouring reinforced concrete to create a continuous underground wall. Construction begins with precise ground marking and the construction of guide walls for guidance and support. Then, specialized equipment such as grab buckets, trench milling machines, or drilling rigs are used to excavate deep trenches in sections to the design elevation under mud protection. Immediately after trench completion, mud circulation is used to clean the boreholes and replace sediment. Precast reinforcing cages are then hoisted and vertically inserted into the trench. Underwater concrete is then poured through tremie pipes, gradually displacing the mud from the trench. Once the concrete has solidified, each section of the trench forms an independent unit. Finally, rigid joints or interlocking pipes are used to tightly connect the units, forming a continuous, sealed, and high-strength underground wall. It is widely used in building foundations, subways, dams, and other projects, offering advantages such as high rigidity, low permeability, and minimal construction vibration.
[0003] Because some projects require a large volume of mud, a circulation tank is set up to circulate, purify, and settle the mud before reuse, as in application CN114561933A. However, in this system, the new mud tank is connected to the forming tank through the circulation tank. Therefore, the new mud cannot be directly injected into the forming tank during the mixing of the old mud in the circulation tank, and the mud inside the forming tank has less risk of collapse. Utility Model Content
[0004] The purpose of this invention is to overcome the shortcomings of existing mud preparation systems, where the new mud tank is connected to the forming tank through a circulation tank, and the old mud cannot be directly injected into the forming tank during the stirring process of the circulation tank, resulting in less risk of mud collapse inside the forming tank. This invention provides a mud recycling preparation system.
[0005] In a first aspect, the present invention provides a mud recycling preparation system, comprising:
[0006] At least one clear water pool;
[0007] At least one new pulp tank, wherein the new pulp tank is provided with a first connecting pipe and a second connecting pipe, wherein the two ends of the first connecting pipe are respectively connected to the clear water tank and the new pulp tank, and the two ends of the second connecting pipe are respectively connected to the forming tank and the new pulp tank;
[0008] At least one circulation tank is provided for holding the old mud inside the trench, and the circulation tank is provided with a third connecting pipe, the two ends of which are respectively connected to the circulation tank and the trench.
[0009] At least one waste slurry tank for holding and purifying waste slurry;
[0010] A pump is used to pump the old slurry inside the trench to the circulation tank, or to pump the slurry in the circulation tank to the trench.
[0011] The number of clear water tanks, new slurry tanks, circulation tanks, and waste liquid tanks is determined based on the actual situation.
[0012] Compared to the existing technology where new mud is first injected into the circulation tank and then into the trench, in this application, the new mud tank and the circulation tank are connected to the trench through different connecting pipes. When the old mud in the trench is injected into the circulation tank, new mud can be directly injected into the trench through the new mud tank, so that the mud water level inside the trench can remain as constant as possible, and the collapse caused by the mud water level inside the trench being too low can be avoided.
[0013] Preferably, the system further includes a zenith support, which is positioned above the circulation pool and the forming tank. The pump is connected to the zenith support via a slider, which is movable along the length of the zenith support.
[0014] The zenith support is set above the circulation pool and the trench, and the slider is set on the zenith support and can move along the length of the zenith support, which facilitates the movement of the pump between the trench and the circulation pool, and makes it easier to discharge old mud from the trench into the circulation pool, or from the circulation pool into the trench.
[0015] Preferably, the slider is connected to the pump via a lifting device, and the distance between the lifting device and the slider is adjustable.
[0016] If the distance between the lifting component and the slider can be adjusted, the pump can be lifted out of the trough or circulation pool when the pump is moved, making it easier to move.
[0017] Preferably, both the first connecting pipe and the second connecting pipe are equipped with valves and flow meters.
[0018] The first connecting pipe is equipped with a valve and a flow meter, which can directly discharge the corresponding amount of clean water from the clear water tank according to the required amount of mud; the second connecting pipe is equipped with a valve and a flow meter, which can determine the amount of new mud discharged into the trench.
[0019] Preferably, the grouting pipe of the circulating pool is connected to a screening machine, which is used to screen out mud and sand in the slurry, and the screening machine is connected to the waste slurry pool.
[0020] If the screening machine is connected to the waste slurry tank, the mud and sand screened out by the screening machine can directly enter the waste slurry tank for easy treatment.
[0021] Preferably, the clear water tank, the new slurry tank, and the circulation tank are of the same size.
[0022] If the clear water tank, new slurry tank, and circulation tank are all the same size, then the corresponding number of tanks can be set up directly according to the ratio of the clear water tank, new slurry tank, and circulation tank, which is convenient for mixing slurry.
[0023] Preferably, the waste slurry tank and the circulation tank are connected.
[0024] If the waste slurry tank and the circulation tank are connected, the old slurry that cannot be recycled can be directly discharged into the waste slurry tank, which is convenient for operation.
[0025] Preferably, one end of the first connecting pipe is disposed on the bottom surface of the clear water tank, and the other end is disposed on the side wall of the new slurry tank; one end of the second connecting pipe is disposed on the bottom surface of the new slurry tank, and the other end is disposed on the side wall of the trench.
[0026] The first connecting pipe is installed at both ends on the bottom of the clear water tank and the side wall of the new slurry tank, respectively, so that clear water can enter the new slurry tank from the bottom of the clear water tank; the second connecting pipe is installed at both ends on the bottom of the new slurry tank and the side wall of the trench, respectively, so that new mud can enter the trench from the new slurry tank.
[0027] Preferably, one end of the third connecting pipe extends into the trench, and the other end extends into the circulation pool.
[0028] One end of the third connecting pipe extends into the forming tank to avoid damaging the forming tank; the other end can extend into the circulating tank through the side wall or bottom surface of the circulating tank.
[0029] Preferably, the inner walls of the clear water tank, the new slurry tank, and the circulation tank are all provided with graduations.
[0030] The inner walls of the clear water tank, the new slurry tank, and the circulation tank are all equipped with graduations to facilitate the identification of the liquid volume in the tank, thereby determining whether the amount of slurry inside the tank meets the requirements.
[0031] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0032] This invention provides a mud recycling preparation system, including a clear water tank, a new mud tank, a circulation tank, a waste liquid tank, and a pump. Compared with the prior art, where new mud is first injected into the circulation tank and then into the forming tank, in this application, the new mud tank and the circulation tank are connected to the forming tank through different connecting pipes. When the old mud in the forming tank is injected into the circulation tank, new mud can be directly injected into the forming tank through the new mud tank, so that the mud water level inside the forming tank can be kept as constant as possible, and the collapse caused by the mud water level inside the forming tank being too low can be avoided. Attached Figure Description
[0033] Figure 1 This is a schematic diagram of a mud recycling preparation system according to the present invention. Figure 1 ;
[0034] Figure 2 This is a schematic diagram of a mud recycling preparation system according to the present invention. Figure 2 ;
[0035] Figure 3 This is a schematic diagram of the installation of the first connecting pipe;
[0036] icon:
[0037] 1-Clear water tank, 2-New slurry tank, 3-Circulation tank, 4-Waste slurry tank, 5-Pump, 6-Ceiling support, 7-Slider, 8-First connecting pipe, 9-Second connecting pipe, 10-Third connecting pipe, 11-Valve, 12-Flow meter, 13-Screening machine, 14-Troughing tank. Detailed Implementation
[0038] The present invention will be further described in detail below with reference to specific embodiments. However, it should not be construed as limiting the scope of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.
[0039] Unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of this utility model is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product / equipment / device is typically placed during use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on this utility model.
[0040] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," and "parallel" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, or parallel, but rather that it can be slightly tilted or have a deviation. For example, "horizontal" merely means that its direction is more horizontal relative to "vertical," not that the structure must be completely horizontal, but can be slightly tilted. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a "horizontal," "vertical," "suspended," or "parallel" direction, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.
[0041] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.
[0042] Furthermore, in the description of the embodiments of this utility model, "several", "multiple", and "several" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.
[0043] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "equipped with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.
[0044] Example 1
[0045] like Figures 1 to 3 As shown, a mud recycling preparation system includes:
[0046] At least one clear water tank 1;
[0047] At least one new pulp tank 2, wherein the new pulp tank 2 is provided with a first connecting pipe 8 and a second connecting pipe 9, wherein the two ends of the first connecting pipe 8 are respectively connected to the clear water tank 1 and the new pulp tank 2, and the two ends of the second connecting pipe 9 are respectively connected to the trough 14 and the new pulp tank 2;
[0048] At least one circulation tank 3 is provided for holding the old mud inside the trench 14. The circulation tank 3 is provided with a third connecting pipe 10, and the two ends of the third connecting pipe 10 are respectively connected to the circulation tank 3 and the trench 14.
[0049] At least one waste slurry tank 4 is used to hold and purify waste mud;
[0050] Pump 5 is used to pump the old mud inside the trench 14 to the circulation tank 3, or to pump the mud in the circulation tank 3 to the trench 14.
[0051] The number of clear water tank 1, new slurry tank 2, circulation tank 3, and waste liquid tank is determined according to the actual situation.
[0052] Compared to the prior art, where new mud is first injected into the circulation tank 3 and then into the trench 14, in this application, the new mud tank 2 and the circulation tank 3 are connected to the trench 14 through different connecting pipes. Therefore, when the old mud in the trench 14 is injected into the circulation tank 3, new mud can be directly injected into the trench 14 through the new mud tank 2, so that the mud water level inside the trench 14 can remain as constant as possible, and the collapse caused by the mud water level inside the trench 14 being too low can be avoided.
[0053] Furthermore, it also includes a zenith support 6, which is disposed above the circulation pool 3 and the trenching 14. The pump 5 is connected to the zenith support 6 via a slider 7, which is movable along the length of the zenith support 6. The zenith support 6 being disposed above the circulation pool 3 and the trenching 14, and the slider 7 being disposed on the zenith support and movable along the length of the zenith support, facilitates the movement of the pump 5 between the trenching 14 and the circulation pool 3, enabling the discharge of old sludge from the trenching 14 into the circulation pool 3, or from the circulation pool 3 into the trenching 14.
[0054] Furthermore, the slider 7 is connected by a lifting component ( Figures 1-3 (Not shown in the image) Connecting the pump 5, the distance between the lifting component and the slider 7 is adjustable. This adjustable distance allows the pump 5 to be lifted out of the trough 14 or circulation pool 3 when moving, facilitating movement.
[0055] Furthermore, both the first connecting pipe 8 and the second connecting pipe 9 are equipped with valves 11 and flow meters 12. The first connecting pipe 8, equipped with valves 11 and flow meters 12, can directly discharge the corresponding amount of clean water from the clear water tank 1 according to the required amount of mud; the second connecting pipe 9, equipped with valves 11 and flow meters 12, can determine the amount of new mud discharged into the forming tank 14.
[0056] Furthermore, the grouting pipe of the circulating pool 3 is connected to a screening machine 13, which is used to screen out mud and sand in the slurry. The screening machine 13 is connected to the waste slurry pool 4. Since the screening machine 13 is connected to the waste slurry pool 4, the mud and sand screened out by the screening machine 13 can directly enter the waste slurry pool 4 for easy treatment.
[0057] Furthermore, the clear water tank 1, the new slurry tank 2, and the circulation tank 3 are all the same size. Since the clear water tank 1, the new slurry tank 2, and the circulation tank 3 are all the same size, the corresponding number of tanks can be set according to the ratio of the clear water tank 1, the new slurry tank 2, and the circulation tank 3, which facilitates the preparation of slurry.
[0058] Furthermore, since the waste slurry tank 4 and the circulation tank 3 are connected, old slurry that cannot be recycled is directly discharged into the waste slurry tank 4, facilitating operation. A valve 11 is also installed between the waste slurry tank 4 and the circulation tank 3.
[0059] Furthermore, one end of the first connecting pipe 8 is disposed on the bottom surface of the clear water tank 1, and the other end is disposed on the side wall of the new slurry tank 2; one end of the second connecting pipe 9 is disposed on the bottom surface of the new slurry tank 2, and the other end is disposed on the side wall of the trenching 14. The two ends of the first connecting pipe 8 are respectively disposed on the bottom surface of the clear water tank 1 and the side wall of the new slurry tank 2, facilitating the entry of clear water from the bottom surface of the clear water tank 1 into the new slurry tank 2; the two ends of the second connecting pipe 9 are respectively disposed on the bottom surface of the new slurry tank 2 and the side wall of the trenching 14, facilitating the entry of new slurry from the new slurry tank 2 into the trenching 14.
[0060] Furthermore, one end of the third connecting pipe 10 extends into the forming tank 14, and the other end extends into the circulation tank 3. One end of the third connecting pipe 10 extends into the forming tank 14 to avoid damage to the forming tank 14; the other end can extend into the circulation tank 3 through the side wall or bottom surface of the circulation tank 3.
[0061] Furthermore, the inner walls of the clear water tank 1, the new slurry tank 2, and the circulation tank 3 are all equipped with graduations. The graduations on the inner walls of the clear water tank 1, the new slurry tank 2, and the circulation tank 3 facilitate the identification of the liquid volume within the tanks, thereby determining whether the amount of slurry inside the forming tank 14 meets the requirements.
[0062] The following is a description of this system based on actual usage:
[0063] A mud recycling preparation system includes two clear water tanks 1 (72 m³ total), six new mud tanks 2 (216 m³ total), twenty-seven recycling tanks 3 (972 m³ total), and four waste mud tanks 4 (144 m³ total). In actual use, pumps 5 are installed in each of the clear water tanks 1, new mud tanks 2, recycling tanks 3, and waste mud tanks 4. In this embodiment, a ceiling support 6 is installed above each recycling tank 3 to facilitate the movement of the pumps 5 to the desired recycling tank 3.
[0064] The above content is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A mud recycling preparation system, characterized in that, include: At least one clear water pool (1); At least one new pulp tank (2), the new pulp tank (2) is provided with a first connecting pipe (8) and a second connecting pipe (9), the two ends of the first connecting pipe (8) are respectively connected to the clear water tank (1) and the new pulp tank (2), and the two ends of the second connecting pipe (9) are respectively connected to the trough (14) and the new pulp tank (2). At least one circulation tank (3) is provided for holding the old mud inside the trench (14), and the circulation tank (3) is provided with a third connecting pipe (10), the two ends of the third connecting pipe (10) being connected to the circulation tank (3) and the trench (14) respectively. At least one waste slurry tank (4) is used to hold and purify waste slurry; Pump (5), the pump (5) is used to pump the old mud inside the tank (14) to the circulation tank (3), or to pump the mud in the circulation tank (3) to the tank (14).
2. The mud recycling preparation system according to claim 1, characterized in that, It also includes a zenith support (6), which is located above the circulation pool (3) and the trench (14). The pump (5) is connected to the zenith support (6) via a slider (7), which can move along the length of the zenith support (6).
3. The mud recycling preparation system according to claim 2, characterized in that, The slider (7) is connected to the pump (5) via a lifting device, and the distance between the lifting device and the slider (7) can be adjusted.
4. A mud recycling preparation system according to any one of claims 1-3, characterized in that, Both the first connecting pipe (8) and the second connecting pipe (9) are equipped with valves (11) and flow meters (12).
5. A mud recycling preparation system according to any one of claims 1-3, characterized in that, The grouting pipe of the circulating pool (3) is connected to a screening machine (13), which is used to screen out mud and sand in the slurry. The screening machine (13) is connected to the waste slurry pool (4).
6. A mud recycling preparation system according to any one of claims 1-3, characterized in that, The clear water tank (1), the new slurry tank (2), and the circulation tank (3) are of the same size.
7. A mud recycling preparation system according to any one of claims 1-3, characterized in that, The waste slurry tank (4) and the circulation tank (3) are connected.
8. A mud recycling preparation system according to any one of claims 1-3, characterized in that, One end of the first connecting pipe (8) is located on the bottom surface of the clear water tank (1), and the other end is located on the side wall of the new slurry tank (2); one end of the second connecting pipe (9) is located on the bottom surface of the new slurry tank (2), and the other end is located on the side wall of the trench (14).
9. A mud recycling preparation system according to any one of claims 1-3, characterized in that, One end of the third connecting pipe (10) extends into the trench (14), and the other end extends into the circulation pool (3).
10. A mud recycling preparation system according to any one of claims 1-3, characterized in that, The inner walls of the clear water tank (1), the new slurry tank (2), and the circulation tank (3) are all equipped with graduations.
Citation Information
Patent Citations
Slurry recycling system for underground diaphragm wall
CN114561933A