Fluidized solidified soil preparation process and equipment thereof

Abstract

The invention relates to a flow-state solidified soil preparation process and equipment thereof, and belongs to the technical field of hydraulic engineering building backfilling, in particular to the technical field of flow-state solidified soil preparation, and the flow-state solidified soil preparation process comprises the following steps: S1, dispersion detection: using an excavator rotary screening hopper to disperse mud cakes into slurry in a water pool, and detecting the density of the slurry in the water pool through a densimeter; s2, stirring and storing: after the density of the slurry in the water pool reaches a set value, transferring the slurry in the water pool into a storage stirring tank for storage through a pump; and S3, feeding: transferring the slurry in the storage mixing tank to a concrete mixer through a pump, and feeding the slurry for use after the slurry is uniformly mixed by the concrete mixer. The device has the effect of facilitating preparation and application of the flow-state solidified soil.

Description

Technical Field

[0001] This application relates to the technical field of backfilling in water conservancy engineering construction, and in particular to a process and equipment for preparing fluidized solidified soil. Background Technology

[0002] Fluidized solidified soil is a new type of geotechnical engineering material, composed of waste foundation soil, a solidifying agent, and water mixed in a specific ratio. Before solidification, fluidized solidified soil has strong fluidity, similar to a fluid, and can be transported and filled into designated locations by means of pumping. Once placed and solidified, it forms a structure with certain strength, low permeability, water stability, and long-term stability, while also possessing low-carbon and environmentally friendly characteristics.

[0003] Fluidized solidified soil has a wide range of applications, including backfilling for hydraulic engineering structures, backfilling of building foundation pit sidewalls and trenches, backfilling of deep subway foundation pit sidewalls, and backfilling of integrated utility tunnel sidewalls and superstructures. Especially in hydraulic engineering backfilling, it not only absorbs large amounts of construction waste but also improves the quality of backfilling projects, promotes the resource recycling of construction waste, and solves the problems of traditional backfilling methods in complex conditions such as narrow spaces, deep trenches, and seepage prevention.

[0004] In current construction processes, to save on construction costs, fluidized solidified soil is usually piped from a metering tank to a concrete mixer after preparation. It is then used after being thoroughly mixed in the concrete mixer. Therefore, during the use of fluidized solidified soil, the construction work related to concrete needs to be suspended. How to complete the preparation and application of fluidized solidified soil at a low cost and with minimal impact on existing concrete production lines is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] To facilitate the preparation and application of fluidized solidified soil, this application provides a process and equipment for preparing fluidized solidified soil.

[0006] In a first aspect, this application provides a process for preparing fluidized solidified soil, employing the following technical solution: A process for preparing fluidized solidified soil includes the following steps: S1: Dispersion test, using an excavator to rotate the screening bucket to disperse the mud cake into mud slurry in the water pool, and then using a densitometer to detect the density of the mud slurry in the water pool; S2: Stirring and storage: After the density of the mud in the water tank reaches the set value, the mud in the water tank is transferred to the storage mixing tank by a pump for storage. S3: Feeding: The slurry in the storage tank is transferred to the concrete mixer by a pump, and then fed into the mixer after being mixed evenly.

[0007] By adopting the above technical solution, in the actual application process, the mud in the pool is first transferred to the storage mixing tank by pump, and then used after being mixed in the concrete mixer. There is no need to modify the concrete mixer, and the impact on the existing concrete production line is small. Only one to two days of downtime is required, which facilitates the preparation and application of fluidized solidified soil.

[0008] Preferably, the storage mixing tank is divided into a first mixing tank and a second mixing tank. The slurry in the first mixing tank is transferred to the second mixing tank by a pump. The capacity of the first mixing tank is larger than that of the second mixing tank. The first mixing tank is used to store the slurry, and the second mixing tank is used to measure the volume of slurry entering the concrete mixer.

[0009] By adopting the above technical solution, the first mixing tank is used to store mud, while the second mixing tank can measure the mud while storing it, ensuring the adjustment of mud density and meeting the mud demand during continuous production.

[0010] Secondly, this application provides a fluidized solidified soil preparation device applied to the above-mentioned fluidized solidified soil preparation process, which adopts the following technical solution: Preferably, the storage mixing tank includes a tank body, and the tank body is provided with a stirring device and a liquid level detection device. The stirring device is used to stir the mud stored in the tank body, and the liquid level detection device is used to detect the liquid level of the mud in the tank body. The liquid level detection device includes a float level gauge and a wave-damping pipe. The float level gauge is located inside the wave-damping pipe, and the wave-damping pipe has multiple wave-damping through holes.

[0011] By adopting the above technical solution, the stirring device is used to stir the mud stored in the tank, making it less prone to stratification and ensuring the density of the mud supplied during continuous production; the liquid level detection device is used to detect the liquid level of the mud in the tank, thereby facilitating the determination of the volume of mud stored in the tank; the anti-surge pipe is used to reduce the fluctuations generated during stirring, thereby reducing interference with the float level gauge. At the same time, the anti-surge pipe can also prevent the float level gauge from getting stuck or blocked during operation, improving the reliability and stability of the float level gauge; the setting of the anti-surge through hole ensures that the liquid level in the anti-surge pipe is consistent with the liquid level in the tank, improving the reliability of mud level detection by the float level gauge.

[0012] Preferably, the tank body is provided with multiple wave-damping plates, which are arranged in a circular array around the axis of the tank body. One end of each wave-damping plate is connected to the inner wall of the tank body, and a reinforcing plate is also provided between the wave-damping plate and the inner wall of the tank body.

[0013] By adopting the above technical solutions, the wave baffle is used to improve mixing efficiency, reduce energy consumption, prevent laminar flow of mud, and ensure the mud requirements during continuous production. The setting of the reinforcing plate effectively improves the connection strength between the wave baffle and the inner wall of the tank.

[0014] Preferably, the tank body is further provided with a sampling device for sampling the mud inside the tank. The sampling device includes a shell connected to the inner wall of the tank. The shell is provided with multiple sampling blocks. Each sampling block is provided with a sampling cavity. A door for controlling the opening and closing of the sampling cavity is slidably connected to the shell. The shell includes a protective cavity for accommodating the door. A connecting cavity for communicating between the sampling cavity and the protective cavity is provided through the sampling block. The shell is provided with a control component for controlling the sliding of the door. The shell is provided with a control component for controlling the opening and closing of the protective cavity and the sampling cavity. The shell is provided with a sampling component for extracting the mud located in the sampling cavity.

[0015] By adopting the above technical solution, the protective cavity is used to house the box door and provide protection for the box door, reducing the damage caused by the stirring of mud to the box door and extending the service life of the box door. When the box door closes the connection between the sampling cavity and the outside world, and then the sampling component is used to take a sample, only the mud located in the sampling cavity can be obtained during the sampling, which can accurately reflect the density of the mud during the sampling.

[0016] Preferably, the sampling assembly includes a sampling tube, a telescopic tube, a connecting rigid tube, and a sampling flexible tube. The sampling tube is located at the top of the housing. One end of the connecting rigid tube is connected to and communicates with the sampling flexible tube, and the other end of the connecting rigid tube is connected to and communicates with the telescopic tube. The end of the sampling flexible tube away from the connecting rigid tube is located in the corresponding sampling chamber. The end of the telescopic tube away from the connecting rigid tube is connected to the top of the housing and communicates with the sampling tube. A connecting block is provided at the end of the door near the top of the housing. A connecting through hole for the connecting rigid tube to pass through is provided on the connecting block. The connecting block is fixed to the connecting rigid tube. When the door is located in the protective chamber, the sampling flexible tube is also located in the protective chamber. The end face of the sampling chamber near the inner wall of the tank protrudes in a direction away from the inner wall of the tank to form a clearance portion. A clearance through hole for the connecting rigid tube to pass through is provided on the sampling block. The clearance portion and the clearance through hole cooperate to provide clearance for the sliding of the connecting rigid tube.

[0017] By adopting the above technical solution, the sampling hose slides synchronously with the box door through the connecting block. When the box door is in the protective cavity, the sampling hose is also in the protective cavity. The sampling hose is not easily disturbed by the mud in the stirring, which provides protection for the sampling hose, making the sampling hose less prone to deformation and improving the service life of the sampling hose.

[0018] Preferably, the control component includes a control gear rotatably disposed within the housing, a control shaft coaxially disposed on the control gear, a control block disposed on a connecting block near the top of the housing, a telescopic through hole for telescopic tube extension and retraction disposed on the control block, and a control rack meshing with the control gear on the control block. When the control gear rotates, it causes the control block and the connecting block to slide under the action of gear transmission. A drive shaft parallel to the control shaft is rotatably connected to the housing. The drive shaft is located near the top of the housing. A synchronous belt is slidably connected inside the housing. The control shaft and the drive shaft are connected by the synchronous belt. When the drive shaft rotates, the control shaft can rotate under the action of belt drive. The top of the housing is rotatably connected to a drive shaft, on which a first bevel gear is coaxially mounted, and on which a second bevel gear meshes with the first bevel gear is coaxially mounted. When the drive shaft rotates, it drives the transmission shaft to rotate under the cooperation of the first and second bevel gears.

[0019] By adopting the above technical solution, in order to drive the control block to slide by controlling the rotation of the control gear, the actual position of the control gear is a certain distance from the top of the housing. In actual operation, it is difficult to directly control the rotation of the control gear. However, through the cooperation of the drive shaft and the transmission shaft, the operator can directly control the rotation of the drive shaft from the top of the housing to drive the control shaft to rotate, thereby controlling the sliding of the box door, which facilitates the control of the box door to slide to the closed sampling chamber and connect with the outside.

[0020] Preferably, the control component includes a sliding block and a rotating block. The sliding block and the rotating block cooperate to control the opening and closing between the protective cavity and the sampling cavity. The sliding block is slidably disposed inside the housing and is located below the door. The housing is provided with a sliding groove for the sliding block to slide. The rotating block is rotatably disposed inside the housing. The end of the rotating block away from the sliding block is provided with a rotating column. The rotating block rotates about the rotating column as the rotation axis. The rotating column is provided with a rotational elastic element for driving the rotating block to rotate until the end of the rotating block away from the rotating column is in contact with the sliding block. The housing is provided with a sliding elastic element for pushing the sliding block toward the rotating block to slide and be in contact with the rotating block. The sliding block and the rotating block have mutually cooperating limiting inclined surfaces on their mating end faces. The box door has a cooperating inclined surface that cooperates with the limiting inclined surface on the sliding block. The rotating block has a linkage plate at one end away from the sliding block. The connecting block has a linkage block that cooperates with the linkage plate. When the connecting block slides, it can first drive the rotating block to rotate to a point where part of the protective cavity and the sampling cavity are connected through the cooperation of the linkage block and the linkage plate. Then, the sliding block can be housed in the sliding groove under the cooperation of the limiting inclined surface and the cooperating inclined surface. The rotating block has a through groove that provides clearance for the sliding of the connecting rigid tube.

[0021] By adopting the above technical solution, in actual application, when the connecting block slides away from the top of the shell, it can first drive the rotating block to rotate to partially connect the protective cavity and the sampling cavity under the cooperation of the linkage block and the linkage plate. During the rotation, the tube that may come into contact with the rotating block is the sampling hose, and the rotation of the rotating block is unlikely to damage the sampling hose. Then, as the connecting block continues to slide, the door can slide to fit the limiting slope and the mating slope on the sliding block. As the connecting block slides, the sliding block can slide into the sliding groove under the cooperation of the limiting slope and the mating slope, completely releasing the seal between the sampling cavity and the protective cavity. No other driving source is required in the whole process. It is a purely mechanical structure and is not easily damaged.

[0022] Preferably, the bottom wall of the sampling chamber is inclined toward the position of the corresponding sampling tube.

[0023] By adopting the above technical solution, it is possible to effectively and conveniently extract mud located in the sampling chamber through the sampling hose, thereby improving the reliability of mud extraction through the sampling hose.

[0024] Preferably, the drive shaft is provided with a plurality of positioning blocks on the side wall outside the housing. The plurality of positioning blocks are arranged in a circular array with the axis of the drive shaft as the center. A locking block is slidably connected to the top of the housing. After sliding, the locking block is embedded between two adjacent positioning blocks. The shape of the locking block is adapted to the shape between the two adjacent positioning blocks.

[0025] By adopting the above technical solution, the positioning block not only facilitates the control of the drive shaft rotation, but also works with the locking block to lock the drive shaft rotation.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. The fluidized solidified soil preparation process in this application does not require modification of the concrete mixer, has little impact on the existing concrete production line, and only requires a shutdown of one to two days, which facilitates the preparation and application of fluidized solidified soil; 2. The first mixing tank is used to store mud, while the second mixing tank can measure the mud while storing it, ensuring the adjustment of mud density and meeting the mud demand during continuous production. Attached Figure Description

[0027] Figure 1 This is a flowchart of Embodiment 1 of this application.

[0028] Figure 2 This is a schematic diagram of the internal structure of the tank according to Embodiment 1 of this application.

[0029] Figure 3 This is a top view of the internal structure of the tank according to Embodiment 1 of this application.

[0030] Figure 4 This is a schematic diagram of the connection structure between the metering tank and the concrete mixer in Embodiment 1 of this application.

[0031] Figure 5 This is a top view of the internal structure of the tank according to Embodiment 2 of this application.

[0032] Figure 6 This is a schematic diagram of the sampling chamber opening of the sampling device according to Embodiment 2 of this application.

[0033] Figure 7 This is a side view of the sampling device according to Embodiment 2 of this application.

[0034] Figure 8 This is a structural layout diagram of the control components near the top of the housing in Embodiment 2 of this application.

[0035] Figure 9 This is a structural layout diagram of the control component located in the middle section of the housing in Embodiment 2 of this application.

[0036] Figure 10 This is a structural layout diagram of the control component located at the bottom of the housing in Embodiment 2 of this application.

[0037] Figure 11 This is a schematic diagram of the top structure of the shell in Embodiment 2 of this application.

[0038] Figure 12 This is a schematic diagram of the connecting block structure located in the middle section of the shell in Embodiment 2 of this application.

[0039] Figure 13 This is a schematic diagram of the structure of the sampling chamber with the box door closed in Embodiment 2 of this application.

[0040] Explanation of reference numerals in the attached drawings: 1. Storage tank; 11. Tank body; 12. Agitator; 121. Double-support bracket; 122. Agitator shaft; 123. Cycloidal pinwheel reducer; 124. Agitator blade; 13. Wave deflector; 14. Wave baffle; 141. Reinforcing plate; 2. Sampling device; 3. Shell; 31. Sampling block; 311. Sampling chamber; 312. Relief section; 32. Door; 321. Protective cavity; 322. Mating inclined surface; 33. Control component; 4. Sampling assembly; 41. Sampling tube; 42. Telescopic tube; 43. Connecting rigid tube; 44. Sampling flexible tube; 5. Connecting block; 51. Connecting through hole; 52. Linkage block; 53. Relief cavity; 6. Control block; 61. Control gear; 611. Control shaft; 62. Telescopic through hole; 63. Control cavity; 631. Control rack; 64. Drive shaft; 641. Second bevel gear; 65. Synchronous belt; 66. Drive shaft; 661. First bevel gear; 662. Positioning block; 67. Protective cover; 68. Locking block; 681. Positioning column; 682. Positioning through hole; 7. Sliding block; 71. Sliding groove; 72. Sliding spring; 721. Receiving cavity; 73. Limiting inclined surface; 8. Rotating block; 81. Rotating column; 82. Linkage plate; 83. Relief groove; 9. Concrete mixer; 91. Slurry pump; 92. Partition plate; 93. Drain valve. Detailed Implementation

[0041] The following is in conjunction with the appendix Figure 1-13 This application will be described in further detail.

[0042] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0043] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0044] Example 1: Embodiment 1 of this application discloses a process for preparing fluidized solidified soil, referring to... Figure 1 It includes the following steps: S1: Dispersion detection. Using an excavator to rotate the screening bucket, the mud cake is dispersed into mud slurry in the water pool. After a certain amount is reached, the density of the mud slurry in the water pool is detected by a densitometer.

[0045] S2: Stirring and storage. After the density of the mud in the pool reaches the set value, the mud in the pool is transferred to the storage mixing tank 1 by a pump. The storage mixing tank 1 is divided into a first mixing tank and a second mixing tank. The first mixing tank is made of a tank 11 with a larger capacity and mainly serves to store the mud. The second mixing tank is made of a tank 11 with a volume of 30 cubic meters. In order to save costs, the second mixing tank can be purchased as a second-hand tank 11 and processed. The volume of the second mixing tank is determined and is smaller than that of the first mixing tank, so it can serve as a metering device.

[0046] S3: Feeding: The slurry in the storage tank 1 is transferred to the concrete mixer 9 by a pump. After being mixed evenly by the concrete mixer 9, the slurry is fed into the mixer for use.

[0047] In practical applications, the slurry in the water tank is first transferred to the first mixing tank for storage using a pump. Then, the slurry in the first mixing tank is transferred to the second mixing tank using a pump until the slurry in the second mixing tank reaches the storage value. In actual use, the slurry in the second mixing tank is transferred to the concrete mixer 9 for mixing and then used. No modification to the concrete mixer 9 is required. The first mixing tank is used to store the slurry, while the second mixing tank can measure the slurry while storing it. On the one hand, this ensures the adjustment of the slurry density to meet the slurry requirements during continuous production. On the other hand, it has little impact on the existing concrete production line, requiring only a one- to two-day shutdown, which facilitates the preparation and application of fluidized solidified soil.

[0048] Embodiment 1 of this application also discloses a fluidized solidified soil preparation device for the above-mentioned fluidized solidified soil preparation process, referring to... Figure 2 and Figure 3The storage mixing tank 1 includes a tank body 11, and a stirring device 12 and a liquid level detection device are installed inside the tank body 11. The stirring device 12 is used to stir the mud stored in the tank body 11. The stirring device 12 includes a double-support bracket 121, a stirring shaft 122, and a cycloidal pinwheel reducer 123. The double-support bracket 121 is fixed to the tank body 11 by welding, and the cycloidal pinwheel reducer 123 can be fixed to the double-support bracket 121 by bolts. The stirring shaft 122 and the output shaft of the cycloidal pinwheel reducer 123 are coaxial. The stirring shaft 122 is equipped with multiple stirring blades 124. The number of stirring blades 124 depends on the height of the tank 11. The stirring blades 124 located at both ends of the tank 11 are arranged at opposite angles, so that during the actual stirring process, the mud located below the tank 11 can move upward and the mud located above the tank 11 can move downward, forming convection so that the mud in the tank 11 can be fully stirred, making it less likely for the mud in the tank 11 to separate, thus ensuring the density of the mud supplied during continuous production.

[0049] Reference Figure 2 and Figure 3 The liquid level detection device is used to detect the liquid level of the mud in the tank 11, thereby facilitating the determination of the volume of mud stored in the tank 11. The liquid level detection device includes a float level gauge and a wave deflector 13. One end of the wave deflector 13 is fixed to the top of the tank 11, and the other end of the wave deflector 13 has a certain gap with the bottom of the tank 11. The wave deflector 13 is a device that can absorb the fluctuations generated during agitation, enabling the float level gauge to measure accurately. The wave deflector 13 can reduce the fluctuations generated during agitation, thereby reducing interference with the float level gauge. At the same time, the wave deflector 13 can also prevent the float level gauge from getting stuck or blocked during operation, improving the reliability and stability of the float level gauge. Multiple wave deflector holes are opened through the wave deflector 13. The number of wave deflector holes depends on the length of the wave deflector 13. The setting of wave deflector holes ensures that the liquid level in the wave deflector 13 is consistent with the liquid level in the tank 11, improving the reliability of mud level detection by the float level gauge.

[0050] Reference Figure 2 and Figure 3 The tank body 11 is also provided with multiple wave-damping plates 14. In this embodiment, there are three wave-damping pipes. The three wave-damping plates 14 are arranged in a circular array with the axis of the tank body 11 as the center. One end of the wave-damping plate 14 is installed and welded to the inner wall of the tank body 11 at a 45-degree angle. A reinforcing plate 141 is also provided between the wave-damping plate 14 and the inner wall of the tank body 11. The reinforcing plate 141 is used to improve the strength of the fixation between the wave-damping plate 14 and the inner wall of the tank body 11. Multiple reinforcing plates 141 can be provided. The number of reinforcing plates 141 depends on the length of the wave-damping plate 14. In this embodiment, one reinforcing plate 141 needs to be welded for every meter.

[0051] Reference Figure 3 and Figure 4 To increase the production capacity of fluidized solidified soil, a connecting pipe leading to the concrete mixer 9 can be added to the bottom of the storage tank 1. The connecting pipe works with the slurry pump 91 to transfer the slurry. Each connecting pipe is equipped with two vent valves 93, which are respectively located on both sides of the slurry pump 91. The connecting pipe includes an inlet pipe fixed to the metering tank. The inlet pipe is made of steel and has a certain strength. The connecting pipe also includes a rubber joint fixed to and connected to the inlet pipe. The rubber joint has functions such as shock absorption, connection, compensation, noise reduction and corrosion prevention, which improves the reliability of slurry transmission through the connecting pipe. The connecting pipe also includes an outlet pipe fixed to the concrete mixer 9. The outlet pipe is made of PPR (Polypropylene-Random) material.

[0052] Reference Figure 3 The bottom of the storage mixing tank 1 is also equipped with four baffles 92. The four baffles 92 are arranged in a circular array with the axis of the storage mixing tank 1 as the center. By setting the baffles 92, the feeding speed can be effectively prevented from being reduced due to the mud forming vortex when the mud is pumped to the bottom, thereby improving the stability of mud feeding.

[0053] Example 2: The difference from Embodiment 1 is that, referring to Figure 5 and Figure 6 The tank body 11 is also provided with a sampling device 2 for sampling the mud inside the tank body 11. The sampling device 2 includes a shell 3 that is welded and fixed to the inner wall of the tank body 11. The shell 3 is provided with a plurality of sampling blocks 31. Each sampling block 31 is provided with a sampling cavity 311. In this embodiment of the application, there are three sampling blocks 31. The three sampling blocks 31 are arranged sequentially along the length direction of the shell 3. The sampling blocks 31 can be fixed to the shell 3 by welding, gluing or bolting. In this embodiment of the application, the sampling blocks 31 are fixed to the shell 3 by welding.

[0054] Reference Figure 6 and Figure 7 The housing 3 has a sliding door 32 for controlling the opening and closing of the sampling chamber 311 to the outside. The housing 3 includes a protective cavity 321 for accommodating the door 32. The protective cavity 321 is used to house the door 32 and provide protection for it, reducing damage to the door 32 caused by mud stirring and effectively extending the service life of the sampling device 2. A connecting cavity is provided through the sampling block 31 to connect the sampling chamber 311 and the protective cavity 321. The door 32 located in the protective cavity 321 can enter the sampling chamber 311 through the connecting cavity.

[0055] Reference Figure 6 and Figure 7The housing 3 is equipped with a sampling component 4 for extracting mud from the sampling chamber 311. When the door 32 moves to close the sampling chamber 311 and connect it to the outside, the mud in the sampling chamber 311 can be extracted through the sampling component 4. This allows for density testing of mud at different depths within the tank 11, facilitating mud sampling within the tank 11 and determining whether stratification exists, thus improving the quality of mud during continuous supply. The sampling component 4 includes a sampling tube 41, a telescopic tube 42, a connecting rigid tube 43, and a sampling flexible tube 44. Since there are three sampling chambers 311 in this embodiment, three sets of sampling components 4 are required. The three sets of sampling components 4 are arranged along the width direction of the housing 3 and are staggered.

[0056] Reference Figure 6 and Figure 7 The sampling tube 41 is fixed to the top of the housing 3. One end of the connecting rigid tube 43 is fixed and connected to the sampling hose 44, and the other end of the connecting rigid tube 43 is fixed and connected to the telescopic tube 42. The end of the telescopic tube 42 away from the connecting rigid tube 43 is fixed to the top of the housing 3, so that the telescopic tube 42 is connected to the sampling tube 41. The end of the sampling hose 44 away from the connecting rigid tube 43 is located in the corresponding sampling chamber 311. Then the sampling tube 41 can cooperate with the pump to extract the mud located in the corresponding sampling chamber 311. The bottom wall of the sampling chamber 311 is tilted towards the position of the corresponding sampling hose 44. In actual application, it is possible to effectively extract the mud located in the sampling chamber 311 through the sampling hose 44, thereby improving the reliability of mud extraction through the sampling hose 44.

[0057] Reference Figure 6 and Figure 7 A connecting block 5 is fixedly provided at one end of the box door 32 near the top of the housing 3. A connecting through hole 51 is provided on the connecting block 5 for the connecting rigid tube 43 to pass through. The connecting block 5 can be fixed to the connecting rigid tube 43 by adhesive. During the sliding of the box door 32, the connecting rigid tube 43 and the sampling hose 44 fixed to the connecting rigid tube 43 can slide synchronously through the connecting block 5. During the sliding of the box door 32, the telescopic tube 42 can be extended and retracted accordingly to ensure the communication between the telescopic tube 42, the sampling tube 41 and the connecting rigid tube 43. The connecting rigid tube 43 and the connecting block 5 can fix two adjacent connecting blocks 5, so that the three boxes 32 can slide synchronously. When the box door 32 is in the protective cavity 321, the sampling hose 44 is also in the protective cavity 321. Therefore, the sampling hose 44 is not easily damaged during mud stirring, effectively protecting the sampling hose 44 and extending the service life of the sampling assembly 4.

[0058] Reference Figure 8 , Figure 9 and Figure 10Because the connecting rigid pipe 43 located at the bottom or middle of the tank 11 is relatively long, when installing the sampling pipe 41, the end face of the sampling chamber 311 near the inner wall of the tank 11 needs to protrude in a direction away from the inner wall of the tank 11 to form a clearance part 312. The sampling block 31 is correspondingly provided with a clearance through hole for the connecting rigid pipe 43 to pass through. The clearance part 312 cooperates with the clearance through hole to provide clearance for the sliding of the connecting rigid pipe 43, ensuring the reliability of the sliding of the box door 32 and the sampling component 4. After the box door 32 moves to close the sampling chamber 311 and connects with the outside, sampling is then carried out through the sampling component 4. On the one hand, only the mud located in the sampling chamber 311 can be obtained during sampling, which can accurately reflect the density of the mud during sampling. On the other hand, the sampling hose 44 is not easily disturbed by the mud during sampling, which provides protection for the sampling hose 44, making the sampling hose 44 less prone to deformation and improving the service life of the sampling hose 44.

[0059] Reference Figure 6 and Figure 7 The housing 3 is equipped with a control assembly for controlling the sliding of the door 32. The control assembly includes a control gear 61 rotatably disposed inside the housing 3. A control shaft 611 is coaxially disposed on the control gear 61. The control gear 61 rotates about the control shaft 611 as the axis of rotation. A control block 6 is integrally formed on the connecting block 5 near the top of the housing 3. A telescopic through hole 62 for telescopic tube 42 to slide through the control block 6 is provided for telescopic tube 42. A control cavity 63 is provided on the control block 6 to accommodate the control gear 61. The control cavity 63 cooperates with the control gear 61 to limit the sliding length of the connecting block 5. A control rack 631 that meshes with the control gear 61 is fixed on the inner wall of the control cavity 63. When the control gear 61 rotates, it can drive the control block 6 and the connecting block 5 fixed to the control block 6 to slide synchronously under the action of gear transmission.

[0060] Reference Figure 6 and Figure 7A transmission shaft 64, parallel to the control shaft 611, is rotatably connected to the housing 3. The transmission shaft 64 is positioned near the top of the housing 3. A synchronous belt 65 is slidably connected to the housing 3. A protective cover 67 is provided on the housing 3 to protect the synchronous belt 65. The control shaft 611 and the transmission shaft 64 are connected via the synchronous belt 65. When the transmission shaft 64 rotates, the control shaft 611 can rotate synchronously under the action of belt drive. A drive shaft 66 is rotatably connected to the top of the housing 3. A first bevel gear 661 is coaxially provided at the end of the drive shaft 66 near the transmission shaft 64. A second bevel gear 641, meshing with the first bevel gear 661, is coaxially provided at the end of the transmission shaft 64 facing the drive shaft 66. When the drive shaft 66 rotates, it can drive the transmission shaft 64 to rotate under the cooperation of the first bevel gear 661 and the second bevel gear 641. The above structure is designed to facilitate the control of the rotation of the control gear 61. In order to drive the control block 6 to slide by rotating the control gear 61, the actual position of the control gear 61 is a certain distance from the top of the housing 3. In actual operation, it is difficult to directly control the rotation of the control gear 61. However, through the cooperation of the drive shaft 66 and the transmission shaft 64, the operator can directly control the rotation of the drive shaft 66 to drive the control shaft 611 to rotate from the top of the housing 3, thereby controlling the sliding of the box door 32, which facilitates the control of the box door 32 to slide to the closed sampling chamber 311 and connect it to the outside.

[0061] Reference Figure 5 and Figure 11 The drive shaft 66 has multiple positioning blocks 662 on its side wall outside the housing 3. The number of positioning blocks 662 depends on the size of the drive shaft 66. In this embodiment, there are six positioning blocks 662 arranged in a circular array around the axis of the drive shaft 66. A locking block 68 is also slidably connected to the top of the housing 3. After sliding, the locking block 68 can be embedded between two adjacent positioning blocks 662, thereby locking the rotation of the drive shaft 66. The shape of the locking block 68 is adapted to the shape between two adjacent positioning blocks 662, improving the reliability of locking the rotation of the drive shaft 66 by the locking block 68. The positioning blocks 662 not only facilitate the control of the rotation of the drive shaft 66, but also cooperate with the locking block 68 to lock the rotation of the drive shaft 66. A positioning post 681 is provided on the top of the housing 3. A through hole 682 for the positioning post 681 to slide and position is provided through the locking block 68. The positioning post 681 and the positioning through hole 682 cooperate to limit the sliding length and sliding direction of the locking block 68. In practical applications, a locking spring can also be added to the locking block 68. The locking block 68 is provided with a locking groove for accommodating the locking spring. One end of the locking spring is fixed to the housing 3, and the other end of the locking spring is fixed to the locking block 68. The locking spring is used to push the locking block 68 to slide towards the drive shaft 66, thereby improving the reliability of locking the drive shaft 66 to rotate through the locking block 68.

[0062] Reference Figure 7 and Figure 13 The housing 3 is provided with a control component 33 for controlling the opening and closing of the protective chamber 321 and the sampling chamber 311. The setting of the control component 33 further makes the door 32 and the hose less susceptible to the influence of mud in external stirring, and reduces the influence of the mud remaining in the protective chamber 321 on the mud density of the test. The control component 33 includes a sliding block 7 and a rotating block 8. The sliding block 7 and the rotating block 8 cooperate to control the opening and closing between the protective cavity 321 and the sampling cavity 311. The sliding block 7 is slidably disposed inside the housing 3 and is located below the door 32. The housing 3 is provided with a sliding groove 71 for the sliding block 7 to slide. The rotating block 8 is rotatably disposed inside the housing 3. The end of the rotating block 8 away from the sliding block 7 is provided with a rotating column 81. The rotating block 8 rotates about the rotating column 81 as the rotation axis. The rotating column 81 is provided with a rotating elastic element for driving the rotating block 8 to rotate until the end of the rotating block 8 away from the rotating column 81 is in contact with the sliding block 7. In this embodiment, the rotating elastic element is a rotating torsion spring. The rotating torsion spring is sleeved on the rotating column 81. One end of the rotating torsion spring is fixed to the housing 3, and the other end of the rotating torsion spring is fixed to the rotating block 8. The specific position of the rotating torsion spring can be adjusted according to the actual installation situation.

[0063] The housing 3 is provided with a sliding elastic element for pushing the sliding block 7 toward the rotating block 8 to fit against the rotating block 8. In this embodiment, the sliding elastic element is a sliding spring 72. The sliding block 7 is provided with a receiving cavity 721 for accommodating the sliding spring 72. One end of the sliding spring 72 is fixed to the inner wall of the receiving cavity 721, and the other end of the sliding spring 72 is fixed to the inner wall of the sliding groove 71. Without other external forces, the rotating block 8 and the sliding block 7 can maintain the state of communication between the closed protective cavity 321 and the sampling cavity 311 under the action of the sliding spring 72 and the rotating spring.

[0064] Reference Figure 7 and Figure 13The sliding block 7 and the rotating block 8 have mutually cooperating limiting inclined surfaces 73 on their mating end faces. The door 32 has a cooperating inclined surface 322 that cooperates with the limiting inclined surface 73 on the sliding block 7. A linkage plate 82 is fixedly installed on the end of the rotating block 8 away from the sliding block 7. A linkage block 52 that cooperates with the linkage plate 82 is fixedly installed on the connecting block 5. In actual application, when the connecting block 5 slides away from the top of the housing 3, it can first drive the rotating block 8 to rotate to the point where part of the protective cavity 321 is connected to the sampling cavity 311 under the cooperation of the linkage block 52 and the linkage plate 82. During the rotation, the tube that may come into contact with the rotating block 8 is the sampling hose 44, which will not affect the rotation of the rotating block 8, and the rotation of the rotating block 8 is unlikely to damage the sampling hose 44. Then, as the connecting block 5 continues to slide, the box door 32 can slide until the limiting inclined surface 73 and the mating inclined surface 322 on the sliding block 7 are in contact. As the connecting block 5 slides, the sliding block 7 can slide into the sliding groove 71 under the cooperation of the limiting inclined surface 73 and the mating inclined surface 322, completely releasing the seal between the sampling chamber 311 and the protective chamber 321.

[0065] Reference Figure 8 , Figure 9 , Figure 10 and Figure 12 The rotating block 8 has a through-hole groove 83 that provides clearance for the sliding of the connecting rigid pipe 43. The rotating block 8 is less likely to damage the connecting rigid pipe 43. Correspondingly, if the sliding space of the connecting block 5 is small, causing interference between the sliding position of the connecting block 5 and the rotation space of the rotating block 8, a clearance cavity 53 can be through-hole in the connecting block 5. Then, when the connecting block 5 slides, the rotating block 8 can enter the clearance cavity 53.

[0066] The implementation principle of Embodiment 2 of this application is as follows: After the control locking block 68 slides to release the lock on the rotation of the drive shaft 66, the drive shaft 66 can be controlled to rotate so that the box door 32 slides from the protective cavity 321 toward the sampling cavity 311. During the sliding, the linkage block 52 on the connecting block 5 can first cooperate with the linkage plate 82 to drive the rotating block 8 to rotate until part of the protective cavity 321 is connected to the sampling cavity 311. Then the box door 32 and the sampling hose 44 can slide toward the sampling cavity 311. When the box door 32 slides to close the sampling cavity 311 and connect it to the outside, the pump and the sampling pipe 41 can be used to extract the mud in the sampling cavity 311 and detect the density of the mud to determine the density of the mud in the tank 11 and whether the mud in the tank 11 is layered.

[0067] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined by the scope of the claims.

Claims

1. A process for preparing fluidized solidified soil, characterized in that, Includes the following steps: S1: Dispersion test, using an excavator to rotate the screening bucket to disperse the mud cake into mud slurry in the water pool, and then using a densitometer to detect the density of the mud slurry in the water pool; S2: Stirring and storage. After the density of the mud in the pool reaches the set value, the mud in the pool is transferred to the storage mixing tank (1) by a pump for storage. S3: Feeding: The slurry in the storage tank (1) is transferred to the concrete mixer (9) by a pump. After being mixed evenly by the concrete mixer (9), the slurry is fed into the mixer for use.

2. The process for preparing fluidized solidified soil according to claim 1, characterized in that, The storage mixing tank (1) is divided into a first mixing tank and a second mixing tank. The mud in the first mixing tank is transferred to the second mixing tank by a pump. The capacity of the first mixing tank is greater than that of the second mixing tank. The first mixing tank is used to store mud, and the second mixing tank is used to measure the volume of mud entering the concrete mixer (9).

3. A fluidized bed solidified soil preparation device, wherein the fluidized bed solidified soil preparation device is used to implement the fluidized bed solidified soil preparation process according to any one of claims 1-2, characterized in that, The storage mixing tank (1) includes a tank body (11), and the tank body (11) is provided with a stirring device (12) and a liquid level detection device. The stirring device (12) is used to stir the mud stored in the tank body (11), and the liquid level detection device is used to detect the liquid level of the mud in the tank body (11). The liquid level detection device includes a float level gauge and a wave-damping pipe (13). The float level gauge is located inside the wave-damping pipe (13), and the wave-damping pipe (13) has multiple wave-damping through holes.

4. The fluidized solidified soil preparation equipment according to claim 3, characterized in that, The tank (11) is provided with multiple wave-damping plates (14), which are arranged in a circular array with the axis of the tank (11) as the center. One end of the wave-damping plate (14) is connected to the inner wall of the tank (11), and a reinforcing plate (141) is also provided between the wave-damping plate (14) and the inner wall of the tank (11).

5. The fluidized solidified soil preparation equipment according to claim 3, characterized in that, The tank (11) is also equipped with a sampling device (2) for sampling the mud inside the tank (11). The sampling device (2) includes a housing (3) connected to the inner wall of the tank (11). The housing (3) is equipped with a plurality of sampling blocks (31). Each sampling block (31) is provided with a sampling cavity (311). A door (32) for controlling the opening and closing of the sampling cavity (311) is slidably connected to the housing (3). The housing (3) includes a door (32) for accommodating the door (311). 2) The protective cavity (321) is provided with a connecting cavity through which the sampling block (31) communicates with the protective cavity (321). The housing (3) is provided with a control component for controlling the sliding of the box door (32). The housing (3) is provided with a control component (33) for controlling the opening and closing of the protective cavity (321) and the sampling cavity (311). The housing (3) is provided with a sampling component (4) for extracting mud located in the sampling cavity (311).

6. The equipment for preparing fluidized solidified soil according to claim 5, characterized in that, The sampling assembly (4) includes a sampling tube (41), a telescopic tube (42), a connecting rigid tube (43), and a sampling flexible tube (44). The sampling tube (41) is located at the top of the housing (3). One end of the connecting rigid tube (43) is connected to and communicates with the sampling flexible tube (44), and the other end of the connecting rigid tube (43) is connected to and communicates with the telescopic tube (42). The end of the sampling flexible tube (44) away from the connecting rigid tube (43) is located in the corresponding sampling chamber (311). The end of the telescopic tube (42) away from the connecting rigid tube (43) is connected to the top of the housing (3), and the telescopic tube (42) communicates with the sampling tube (41). The door (32) is located near the top of the housing (3). One end is provided with a connecting block (5), and the connecting block (5) has a through hole (51) for the connecting hard tube (43) to pass through. The connecting block (5) is fixed to the connecting hard tube (43). When the box door (32) is located in the protective cavity (321), the sampling hose (44) is also located in the protective cavity (321). The end face of the sampling cavity (311) near the inner wall of the tank (11) protrudes in a direction away from the inner wall of the tank (11) to form a clearance part (312). The sampling block (31) has a through hole for the connecting hard tube (43) to pass through. The clearance part (312) cooperates with the clearance hole to provide clearance for the sliding of the connecting hard tube (43).

7. The fluidized solidified soil preparation equipment according to claim 6, characterized in that, The control assembly includes a control gear (61) rotatably disposed within the housing (3), a control shaft (611) coaxially disposed on the control gear (61), a control block (6) disposed on the connecting block (5) near the top of the housing (3), a telescopic through hole (62) for telescopic tube (42) to extend and retract through the control block (6), and a control rack (631) meshing with the control gear (61) on the control block (6). When the control gear (61) rotates, it drives the control block (6) and the connecting block (5) to slide under the action of gear transmission. A drive shaft (64) parallel to the control shaft (611) is rotatably connected to the housing (3). The drive shaft (64) is located near the top of the housing (3). A synchronous belt (65) is slidably connected inside the housing (3). The control shaft (611) and the drive shaft (64) are connected by the synchronous belt (65). When the drive shaft (64) rotates, the control shaft (611) can rotate under the action of belt drive. A drive shaft (66) is rotatably connected to the top of the housing (3). A first bevel gear (661) is coaxially mounted on the drive shaft (66), and a second bevel gear (641) meshing with the first bevel gear (661) is coaxially mounted on the transmission shaft (64). When the drive shaft (66) rotates, it drives the transmission shaft (64) to rotate under the cooperation of the first bevel gear (661) and the second bevel gear (641).

8. The equipment for preparing fluidized solidified soil according to claim 6, characterized in that, The control component (33) includes a sliding block (7) and a rotating block (8). The sliding block (7) and the rotating block (8) cooperate to control the opening and closing between the protective cavity (321) and the sampling cavity (311). The sliding block (7) is slidably disposed in the housing (3) and is located below the door (32). The housing (3) is provided with a sliding groove (71) for the sliding block (7) to slide. The rotating block (8) is rotatably disposed in the housing (3). The end of the rotating block (8) away from the sliding block (7) is provided with a rotating column (81). The rotating block (8) rotates about the rotating column (81) as the rotation axis. The rotating column (81) is provided with a rotating elastic element for driving the rotating block (8) to rotate until the end of the rotating block (8) away from the rotating column (81) is in contact with the sliding block (7). The housing (3) is provided with a sliding elastic element for pushing the sliding block (7) toward the rotating block (8) to be in contact with the rotating block (8). The sliding block (7) and the rotating block (8) are fitted with mutually cooperating limiting inclined surfaces (73). The box door (32) is provided with a cooperating inclined surface (322) that cooperates with the limiting inclined surface (73) on the sliding block (7). The rotating block (8) is provided with a linkage plate (82) at one end away from the sliding block (7). The connecting block (5) is provided with a linkage block (52) that cooperates with the linkage plate (82). When the connecting block (5) slides, it can first drive the rotating block (8) to rotate to the point where part of the protective cavity (321) and the sampling cavity (311) are connected through the cooperation of the linkage block (52) and the linkage plate (82). Then the sliding block (7) can be stored in the sliding groove (71) under the cooperation of the limiting inclined surface (73) and the cooperating inclined surface (322). The rotating block (8) is provided with a clearance groove (83) that provides clearance for the sliding of the connecting hard tube (43).

9. The equipment for preparing fluidized solidified soil according to claim 5, characterized in that, The bottom wall of the sampling chamber (311) is inclined toward the position of the corresponding sampling tube (44).

10. The equipment for preparing fluidized solidified soil according to claim 7, characterized in that, The drive shaft (66) is provided with a plurality of positioning blocks (662) on the side wall outside the housing (3). The plurality of positioning blocks (662) are arranged in a circular array with the axis of the drive shaft (66) as the center. A locking block (68) is slidably connected to the top of the housing (3). After sliding, the locking block (68) is embedded between two adjacent positioning blocks (662). The shape of the locking block (68) is adapted to the shape between the two adjacent positioning blocks (662).

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