Flowable solidified soil storage tank

Abstract

A kind of fluid solidified soil storage tank, comprising: tank body, the cavity of tank body is used to store fluid solidified soil;Discharge door, discharge port is equipped in the bottom of tank body;Mixing device, mixing device is arranged in the cavity of tank body, for the mixing treatment of stored fluid solidified soil, to prevent fluid solidified soil solidification;Discharge bin, discharge bin is connected with tank body, and fluid solidified soil discharged from tank body flows into discharge bin, discharge bin is inverted conical structure;Pumping device, pumping device is connected with the discharge port pipeline of discharge bin.The bottom of tank body is provided with discharge port, discharge port position is equipped with discharge door, and the fluid solidified soil located in the bottom of tank body can also be smoothly discharged by the opening of discharge door, effectively avoid the problem of long-term accumulation and solidification of fluid solidified soil in bottom layer.Inverted conical structure discharge bin, it is beneficial to the rapid concentration of fluid solidified soil to converge to discharge port, and then via the pumping device connected with pipeline, the efficient and rapid conveying of fluid solidified soil can be realized.

Description

Technical Field

[0001] This utility model relates to the field of fluidized solidified soil technology, and in particular to a fluidized solidified soil storage tank. Background Technology

[0002] With the continuous advancement of urbanization, the development of urban underground space has entered a rapid development stage, with subway networks and various underground projects springing up like mushrooms after rain. Among tunnel construction technologies, the shield tunneling method, with its significant advantages such as safety, efficiency, and minimal impact on the surrounding environment, has become the mainstream construction technique for underground tunnels. However, while this technology has created engineering miracles, it has also brought about thorny environmental and engineering problems. The large amount of waste mud (i.e., shield excavation material) generated during shield tunneling is becoming a major challenge in urban construction.

[0003] The composition of tunnel boring machine (TBM) excavation soil is extremely complex, containing not only a high proportion of fine soil particles and broken rock fragments, but also various modifiers added during construction to optimize tunneling performance. The complex interactions of these substances result in highly unstable physicochemical properties of the TBM excavation soil, making its treatment extremely difficult. Simply and crudely discharging it directly would not only pollute soil and water bodies and disrupt the ecosystem balance, but also consume a large amount of already scarce urban land resources. Therefore, exploring harmless treatment and resource utilization methods for TBM excavation soil has become a critical technological bottleneck that urgently needs to be overcome in the field of underground engineering.

[0004] In recent years, fluidized solidified soil, as an innovative material in geotechnical engineering, has provided a brand-new solution for the treatment of tunnel boring machine (TBM) excavation soil. This new material fully leverages the advantage of locally sourced materials, significantly reducing energy consumption and environmental pollution from earthwork transportation; through co-processing with solid waste, it achieves resource recycling, perfectly aligning with the concept of green and sustainable development; its unique high fluidity and pumpability allow it to maintain efficient operation even under complex construction conditions, greatly enhancing the flexibility and adaptability of engineering construction. By scientifically formulating solidifying agents such as cement, lime, and alkali-activated slag, the physical and mechanical properties of TBM excavation soil are significantly improved, transforming it into a stable fluidized solidified soil. In foundation reinforcement projects, this material can effectively enhance the bearing capacity of the foundation, ensuring the safety and stability of the superstructure; when used for roadbed filling, it can significantly improve road surface smoothness and extend road service life; it also shows broad application prospects in other types of engineering construction, truly realizing the "turning waste into treasure" of TBM excavation soil, possessing significant economic and social value, and having extremely high potential for widespread application.

[0005] In practical engineering applications, to ensure the fluidity and filling performance of the solidified soil, it needs to be stored in a dedicated storage device before construction. The mixing device inside the storage device operates continuously, effectively preventing the solidified soil from hardening and solidifying during storage, thus ensuring that it maintains good working performance during construction and providing a solid guarantee for project quality and construction progress.

[0006] However, there are still many technical problems that need to be solved in the design and use of current fluidized solidified soil storage devices. Utility Model Content

[0007] The technical problem solved by this utility model is to provide a storage tank for fluidized solidified soil to reduce the solidification of fluidized solidified soil in the storage tank.

[0008] To address the aforementioned problems, this utility model provides a fluidized solidified soil storage tank, comprising: a tank body, the cavity of which is used to store fluidized solidified soil, and a discharge port at the bottom of the tank body; a discharge gate, which is fitted to the discharge port and, when opened, is used to discharge the fluidized solidified soil stored in the tank body; a stirring device, disposed within the cavity of the tank body, used to stir the stored fluidized solidified soil to prevent it from solidifying; a discharge hopper, connected to the tank body, through which the fluidized solidified soil discharged from the tank body flows into the discharge hopper, the discharge hopper having an inverted conical structure; and a pumping device, connected to the discharge port pipe of the discharge hopper.

[0009] Optionally, the stirring device includes: a stirring shaft; a driver connected to the stirring shaft for driving the stirring shaft to rotate; and at least two layers of stirring blades arranged along the extension direction of the stirring shaft and respectively fixedly connected to the stirring shaft.

[0010] Optionally, the distance between the tail end of each stirring blade in the stirring blade assembly and the side wall of the tank is in the range of 2 cm to 5 cm.

[0011] Optionally, the number of stirring blades in the stirring blade assembly is 2 to 3.

[0012] Optionally, the distance between the bottom stirring blade assembly and the bottom of the tank can range from 2 cm to 5 cm.

[0013] Optionally, the tank body has a cylindrical structure.

[0014] Optionally, it also includes: a support frame, the discharge bin being fixedly connected to the support frame, and the tank being supported on the support frame and docked with the discharge bin.

[0015] Optionally, the tank body is detachably connected to the support frame.

[0016] Optionally, it may also include a sealing strip, which is disposed between the edges of the unloading gate and the discharge port.

[0017] Optionally, the unloading gate includes: an electric unloading gate, a pneumatic unloading gate, or a hydraulic unloading gate.

[0018] Compared with the prior art, the technical solution of this utility model has the following advantages:

[0019] In the fluidized solidified soil storage tank of this utility model, a discharge port is provided at the bottom of the tank body, and a discharge gate is installed at the discharge port. Opening the discharge gate ensures that the fluidized solidified soil at the bottom of the tank can be smoothly and completely discharged, effectively avoiding the problem of long-term accumulation and solidification of the fluidized solidified soil at the bottom. The inverted cone-shaped discharge hopper facilitates the rapid and concentrated convergence of the fluidized solidified soil to the discharge port, and then, through a pumping device connected to the outlet via a pipeline, the efficient and rapid transportation of the fluidized solidified soil can be achieved.

[0020] Furthermore, the distance between the tail end of each stirring blade in the stirring blade assembly and the side wall of the tank ranges from 2 cm to 5 cm. This distance allows the stirring blades to fit more closely to the side wall of the tank, thereby effectively expanding the stirring range, covering the surrounding area of ​​the side wall of the tank, and reducing the sedimentation and solidification of the fluidized solidified soil on the side wall of the tank.

[0021] Furthermore, the distance between the bottom stirring blade assembly and the bottom of the tank ranges from 2 cm to 5 cm. This distance allows the bottom stirring blade assembly to fit more closely to the bottom of the tank, thereby more fully mixing the fluidized solidified soil at the bottom of the tank, effectively reducing the solidification of the fluidized solidified soil at the bottom of the tank, and thus improving the overall quality of the fluidized solidified soil.

[0022] Furthermore, it also includes a support frame, with the discharge hopper fixedly connected to the support frame, and the tank body supported on the support frame and docked with the discharge hopper. The support frame provides stable support for the tank body and the discharge hopper, and at the same time, the support frame supports the tank body and the discharge hopper to a certain height, providing a certain installation space for the installation of the pumping device.

[0023] Furthermore, it also includes: a support frame, the discharge bin being fixedly connected to the support frame, and the tank body being supported on the support frame and docked with the discharge bin; the tank body and the support frame are detachably connected. By making the tank body and the support frame detachably connected, the tank body and the discharge bin can be separated into two independent parts, thereby facilitating the cleaning or maintenance of the tank body and the discharge bin.

[0024] Furthermore, it also includes a sealing strip, which is disposed between the edge of the unloading gate and the discharge port. By adding the sealing strip, the fluidized solidified soil can be effectively prevented from leaking from the gap when the unloading gate is closed, thereby ensuring the sealing performance of the tank and improving the performance and reliability of the tank. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the fluidized solidified soil storage tank according to an embodiment of this utility model;

[0026] Figure 2 This is a top view of the tank body in the fluidized solidified soil storage tank of this utility model embodiment;

[0027] Figure 3 This is a structural schematic diagram showing the installation positions of the tank body, discharge hopper, and pumping device in the fluidized solidified soil storage tank of this utility model embodiment;

[0028] Figure 4 This is a schematic diagram of the support frame in the fluidized solidified soil storage tank according to an embodiment of this utility model. Detailed Implementation

[0029] As described in the background section, there are still many technical problems to be solved in the design and use of fluidized solidified soil storage tanks. These will be explained in detail below.

[0030] The existing fluidized solidified soil finished product tanks have many shortcomings in practical applications, mainly in the following aspects: the discharge port of the fluidized solidified soil storage equipment is much higher than the bottom of the storage equipment, which makes it impossible for the fluidized solidified soil at the bottom to be sent out of the storage equipment. Over time, the fluidized solidified soil at the bottom will accumulate and solidify in the storage equipment.

[0031] Based on this, the present invention provides a storage tank for fluidized solidified soil. The tank has a discharge port at its bottom, and a discharge gate is installed at the discharge port. Opening the discharge gate ensures that the fluidized solidified soil at the bottom of the tank can be smoothly and completely discharged, effectively avoiding the problem of long-term accumulation and solidification of the fluidized solidified soil at the bottom. The inverted cone-shaped discharge hopper facilitates the rapid and concentrated collection of the fluidized solidified soil to the discharge port, and then, via a pumping device connected to the discharge port through a pipeline, the efficient and rapid transportation of the fluidized solidified soil can be achieved.

[0032] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0033] Figure 1 This is a schematic diagram of the structure of the fluidized solidified soil storage tank according to an embodiment of this utility model; Figure 2 This is a top view of the tank body in the fluidized solidified soil storage tank of this utility model embodiment; Figure 3 This is a structural schematic diagram showing the installation positions of the tank body, discharge hopper, and pumping device in the fluidized solidified soil storage tank of this utility model embodiment; Figure 4 This is a schematic diagram of the support frame in the fluidized solidified soil storage tank according to an embodiment of this utility model.

[0034] Please refer to Figures 1 to 3 A fluidized solidified soil storage tank includes: a tank body 100, the cavity of which is used to store fluidized solidified soil, and a discharge port (not shown) at the bottom of the tank body 100; a discharge gate 101, which is assembled to the discharge port and is used to discharge the fluidized solidified soil stored in the tank body 100 when opened; a stirring device 102, which is disposed in the cavity of the tank body 100 and is used to stir the stored fluidized solidified soil to prevent it from solidifying; a discharge hopper 103, which is connected to the tank body 100 and the fluidized solidified soil discharged from the tank body 100 flows into the discharge hopper 103, the discharge hopper 103 having an inverted conical structure; and a pumping device 104, which is connected to the discharge port pipe of the discharge hopper 103.

[0035] The tank 100 has a discharge port at its bottom, and a discharge gate 101 is installed at the discharge port. Opening the discharge gate 101 ensures that the fluidized solidified soil at the bottom of the tank 100 can be smoothly and completely discharged, effectively preventing the long-term accumulation and solidification of the fluidized solidified soil at the bottom. The inverted cone-shaped discharge hopper 103 facilitates the rapid and concentrated collection of the fluidized solidified soil to the discharge port, and then, via a pumping device 104 connected to it through a pipeline, the fluidized solidified soil can be transported efficiently and quickly.

[0036] It should be noted that, in this embodiment, the stirring device 102 needs to perform continuous stirring within the tank 100 to break the characteristic of the fluidized solidified soil being easy to solidify when left to stand, ensuring that the fluidized solidified soil maintains good fluidity during storage, providing convenience for subsequent construction operations, and reducing construction interruptions and quality risks caused by material solidification.

[0037] Please continue to refer to this. Figure 1 and Figure 3 In this embodiment, the stirring device 102 includes: a stirring shaft 1021; a driver 1022 connected to the stirring shaft 1021 for driving the stirring shaft 1021 to rotate; and at least two layers of stirring blades 1023 arranged along the extension direction of the stirring shaft 1021 and fixedly connected to the stirring shaft 1021.

[0038] In this embodiment, the distance between the tail end of each stirring blade (not shown) in the stirring blade assembly 1023 and the side wall of the tank 100 ranges from 2 cm to 5 cm. This distance allows the stirring blades to fit more closely to the side wall of the tank 100, thereby effectively expanding the stirring range, covering the surrounding area of ​​the side wall of the tank 100, and reducing the sedimentation and solidification of the fluidized solidified soil on the side wall of the tank 100.

[0039] In this embodiment, the number of stirring blades in the stirring blade assembly 1023 is 2 to 3. The stirring blades in each layer of the stirring blade assembly 1023 are distributed at equal angles; that is, when there are 2 stirring blades in the stirring blade assembly 1023, the included angle between the two stirring blades is 180°; when there are 3 stirring blades in the stirring blade assembly 1023, the included angle between the three stirring blades is 120°. Two stirring blades typically produce simple axial flow, with relatively low mixing intensity, long mixing time, and low energy consumption, making them more suitable for mixing low-viscosity liquids. Two stirring blades can produce more complex axial and radial flow, with high mixing intensity, short mixing time, and relatively high energy consumption, making them suitable for mixing materials of various viscosities. Therefore, in actual processes, the number of stirring blades in each layer of the stirring blade assembly 1023 can be flexibly configured according to actual needs.

[0040] Please continue to refer to this. Figure 1 and Figure 3 In this embodiment, the distance between the bottom stirring blade assembly 1023 and the bottom of the tank 100 ranges from 2 cm to 5 cm. This distance allows the bottom stirring blade assembly 1023 to fit more closely to the bottom of the tank 100, thereby more fully integrating the fluidized solidified soil at the bottom of the tank, effectively reducing the solidification of the fluidized solidified soil at the bottom of the tank, and thus improving the overall quality of the fluidized solidified soil.

[0041] Please continue to refer to this. Figures 1 to 3 In this embodiment, the tank 100 has a cylindrical structure.

[0042] Please refer to Figure 4 And continue to combine with references Figure 1 In this embodiment, the fluidized solidified soil storage tank further includes: a support frame 105, the discharge bin 103 is fixedly connected to the support frame 105, and the tank body 100 is supported on the support frame 105 and docked with the discharge bin 103; the tank body 100 and the support frame 105 are detachably connected.

[0043] By making the tank 100 and the support frame 105 detachably connected, the tank 100 and the discharge bin 103 can be separated into two independent parts, which facilitates the cleaning or maintenance of the tank 100 and the discharge bin 103.

[0044] Please continue to refer to this. Figure 2It should be noted that in this embodiment, the discharge gate 101 is a key component for discharging the fluidized solidified soil from the tank 100. The discharge gate 101 has various structural forms; a common discharge gate 101 includes components such as a drive cylinder, gate panel, gate shaft, bearing, and gate liner. The drive cylinder can be electrically, pneumatically, or hydraulically operated, correspondingly, the discharge gate 101 can be electrically operated, pneumatically operated, or hydraulically operated. The material of the discharge gate 101 is generally selected based on the properties of the material inside the tank 100, such as stainless steel, to ensure its corrosion resistance and service life. During the operation of the tank 100, the normal operation of the discharge gate 101 is crucial; the discharge gate 101 needs to have good sealing performance to prevent material leakage from the tank 100 during the mixing process. Therefore, the fluidized solidified soil storage tank also includes a sealing strip 106, which is disposed between the edge of the discharge gate 101 and the discharge port. By adding the sealing strip 106, the fluidized solidified soil can be effectively prevented from leaking from the gap when the discharge gate 101 is closed, thereby ensuring the sealing performance of the tank body 100 and improving the performance and reliability of the tank body 100.

[0045] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. A fluidized solidified soil storage tank, characterized in that, include: The tank body has a cavity for storing fluidized solidified soil, and a discharge port is located at the bottom of the tank. The unloading gate is assembled on the discharge port and is used to discharge the fluidized solidified soil stored in the tank after the unloading gate is opened. A stirring device is provided inside the cavity of the tank to stir the stored fluidized solidified soil to prevent the fluidized solidified soil from solidifying. A discharge hopper is connected to the tank body, and the fluidized solidified soil discharged from the tank body flows into the discharge hopper. The discharge hopper has an inverted cone shape. A pumping device is connected to the discharge port pipe of the discharge silo.

2. The fluidized solidified soil storage tank as described in claim 1, characterized in that, The stirring device includes: a stirring shaft; a driver connected to the stirring shaft for driving the stirring shaft to rotate; and at least two layers of stirring blades arranged along the extension direction of the stirring shaft and respectively fixedly connected to the stirring shaft.

3. The fluidized solidified soil storage tank as described in claim 2, characterized in that, The distance between the tail end of each stirring blade in the stirring blade assembly and the side wall of the tank ranges from 2 cm to 5 cm.

4. The fluidized solidified soil storage tank as described in claim 3, characterized in that, The number of stirring blades in the stirring blade assembly is 2 to 3.

5. The fluidized solidified soil storage tank as described in claim 2, characterized in that, The distance between the stirring blade assembly located at the bottom and the bottom of the tank ranges from 2 cm to 5 cm.

6. The fluidized solidified soil storage tank as described in claim 1, characterized in that, The tank has a cylindrical structure.

7. The fluidized solidified soil storage tank as described in claim 1, characterized in that, Also includes: A support frame is provided, the discharge bin is fixedly connected to the support frame, and the tank body is supported on the support frame and docked with the discharge bin.

8. The fluidized solidified soil storage tank as described in claim 7, characterized in that, The tank body is detachably connected to the support frame.

9. The fluidized solidified soil storage tank as described in claim 1, characterized in that, Also includes: A sealing strip is disposed between the edges of the unloading gate and the discharge port.

10. The fluidized solidified soil storage tank as described in claim 1, characterized in that, The unloading gate includes: electric unloading gate, pneumatic unloading gate or hydraulic unloading gate.

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