Stirring device for manufacturing flow-state solidified soil to replace shield synchronous mortar

Abstract

The invention discloses a stirring device for manufacturing fluid solidified soil to replace shield synchronous mortar, the stirring device comprises a rack, a vibrating screen assembly and a stirring barrel assembly, the vibrating screen assembly and the stirring barrel assembly are arranged on the rack, the vibrating screen assembly comprises a vibrating screen shell, a mud dissolving knife arranged in the vibrating screen shell, a vibrating screen, a flushing pipeline and a vibrating screen discharging pipeline; the stirring barrel assembly comprises a stirring barrel, an outer circulation pipeline, an inner circulation pipeline and a stirring mechanism arranged on the stirring barrel, one end of the outer circulation pipeline is connected to the stirring barrel, the other end of the outer circulation pipeline is connected to the flushing pipeline, a density measuring instrument is arranged on the inner circulation pipeline, and the stirring end of the stirring mechanism is located at the bottom of the stirring barrel; a weighing mechanism is arranged at the bottom of the stirring barrel and can be used for regulating and controlling the mass and density of the slurry mixture.

Description

Technical Field

[0001] The invention relates to the technical field of solidified soil treatment, and in particular to a stirring device for producing fluidized solidified soil to replace shield synchronous mortar. Background Art

[0002] According to statistics, my country generated 3 billion tons of construction waste in 2020, of which engineering waste accounted for more than 70%. Therefore, the liquid solidification and resource utilization technology of abandoned soil can solve the problem at the source of engineering waste. It is a top priority for achieving green urban development and improving resource utilization. It is also an effective way to achieve carbon peak and carbon neutrality. In the existing technology, the mud disintegration and mixing of solidified soil is generally done by directly adding solidified soil and water into a mixing barrel and stirring and disintegrating the mud with a stirrer. However, the mud disintegration effect of the stirring method of the existing technology is poor and its density and quality cannot be controlled. Summary of the Invention

[0003] In order to solve the above technical problems, the present invention provides a stirring device for making fluidized solidified soil to replace shield synchronous mortar, which has good mud dissolving effect and can regulate the quality and density of the mud mixture.

[0004] The present invention adopts the following technical solutions: A stirring device for producing fluidized solidified soil to replace shield synchronous mortar comprises a frame and a vibrating screen assembly and a stirring barrel assembly arranged on the frame, the vibrating screen assembly comprising a vibrating screen shell, a mud dispersing knife arranged in the vibrating screen shell, a vibrating screen, a flushing pipeline and a vibrating screen discharge pipeline; the stirring barrel assembly comprises a stirring barrel, an external circulation pipeline, an internal circulation pipeline and a stirring mechanism arranged on the stirring barrel, one end of the external circulation pipeline is connected to the stirring barrel, and the other end is connected to the flushing pipeline, a density measuring instrument is provided on the internal circulation pipeline, and the stirring end of the stirring mechanism is located at the bottom of the stirring barrel; a weighing mechanism is provided at the bottom of the stirring barrel, and the mud density is monitored in real time by the density measuring instrument on the internal circulation pipeline, and the weight data is fed back by the weighing mechanism at the bottom of the stirring barrel to achieve dynamic density adjustment.

[0005] Preferably, a main circulation pipeline is provided on one side of the mixing barrel, and a circulation mechanism power source is provided on the main circulation pipeline. The ends of the main circulation pipeline are connected to the external circulation pipeline and the internal circulation pipeline. Both the external circulation pipeline and the internal circulation pipeline are provided with regulating valves. The main circulation pipeline integrates the circulation mechanism power source to provide stable pressure for internal and external circulation, ensuring the flow efficiency of high-viscosity mud. At the same time, the corresponding regulating valve is opened or closed according to demand to realize the closing and opening of the external circulation pipeline and the internal circulation pipeline.

[0006] Preferably, a material inlet and outlet mechanism is provided at the upper end of the mixing barrel, and the material inlet and outlet mechanism is integrated into the upper end of the mixing barrel, which simplifies the structure, reduces the material transfer links, and reduces the risk of contamination.

[0007] Preferably, the feeding and discharging mechanism includes a cover body arranged at the upper end of the mixing barrel, and the cover body is provided with a mud feeding port, a powder feeding port, an aggregate feeding port and a water feeding port. The independent feeding ports (mud, powder, aggregate, water) realize the sequential input of raw materials, avoid pre-mixing agglomeration, and improve the mixing quality.

[0008] Preferably, the upper surface of the cover body is provided with a crisscross-shaped reinforcement rib, and a stirring mechanism is provided in the middle of the reinforcement rib. The crisscross-shaped reinforcement rib enhances the deformation resistance of the cover body and is particularly suitable for the vibration load of the stirring mechanism.

[0009] Preferably, a first screen arranged horizontally or approximately horizontally is provided under the mud-removing knife, and a second screen arranged vertically or approximately vertically is provided on the vibrating screen. The first screen, the second screen and the vibrating screen shell enclose a mud-removing cavity to prevent mud from splashing and ensure a clean working environment.

[0010] Preferably, a third screen is provided below the first and second screens, with a vibrating screen discharge pipe below. The third filter performs final filtration on the mud screened by the first and second screens to ensure that the discharge particle size meets the standard and reduce the risk of pipeline blockage.

[0011] Preferably, at least two flushing pipes are connected to the external circulation pipeline, each flushing pipe is provided with multiple nozzles, and at least one flushing pipe is provided on the left and right sides of the second screen. Multiple flushing pipes cover both sides of the second screen and cooperate with multiple nozzles to form a mesh water flow to thoroughly remove the residual mud in the sieve holes.

[0012] Preferably, the vibrating screen includes a vibrating motor, a rotating shaft arranged on the vibrating motor, and an eccentric block located on the rotating shaft; the eccentric block has an uneven texture, and an eccentric shell connected to the vibrating screen shell is provided on the rotating shaft. The eccentric block rotates to generate an eccentric force which causes the vibrating screen shell to vibrate through the rotating shaft and the eccentric shell. The eccentric block amplifies the vibration force through the rotating shaft and the eccentric shell, thereby increasing the shaking intensity of the screen.

[0013] Preferably, a buffer mechanism is provided between the vibrating screen assembly and the frame, which absorbs the vibration energy transmitted by the vibrating screen, prevents structural fatigue or bolt loosening caused by frame resonance, reduces working noise, and improves equipment life and operating comfort.

[0014] Compared with the prior art, the present invention has the following advantages: The present invention provides a mixing device for producing fluidized solidified soil to replace shield synchronous mortar, comprising a frame and a vibrating screen assembly and a mixing barrel assembly arranged on the frame. A density measuring instrument is provided on the inner circulation pipeline, and a weighing mechanism is provided at the bottom of the mixing barrel. The density of the mud is monitored in real time by the density measuring instrument on the inner circulation pipeline, and the weight data is fed back by the weighing mechanism at the bottom of the mixing barrel to achieve dynamic density adjustment.

[0015] The vibrating screen assembly integrates a mud disintegrator and a flushing pipeline to break up mud lumps and flush the screen to avoid blockage and ensure continuous operation. At the same time, the external circulation pipeline leads the mud and water from the mixing barrel to the vibrating screen flushing pipeline to achieve wastewater / waste slurry reuse; the stirring end is located at the bottom of the mixing barrel to prevent sedimentation and improve the uniformity of the mixture. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of the structure of the stirring device.

[0017] Figure 2 It is a structural diagram of the vibrating screen assembly.

[0018] Figure 3 for Figure 2 A partial enlarged view of part A.

[0019] Figure 4 Schematic diagram of the structure of the vibrating screen.

[0020] Figure 5 A cross-sectional view of a vibrating screen assembly.

[0021] Figure 6 It is a structural schematic diagram of the mixing barrel assembly.

[0022] Figure 7 A cross-sectional view of the mixing barrel assembly.

[0023] In the figure, vibrating screen assembly 1, vibrating screen shell 1-1, mud dispersing knife 1-2, vibrating screen 1-3, vibration motor 1-3-1, rotating shaft 1-3-2, eccentric block 1-3-3, eccentric shell 1-3-4, flushing pipeline 1-4, nozzle 1-4-1, vibrating screen discharge pipe 1-5, first screen 1-6, second screen 1-7, third screen 1-8, mixing barrel assembly 2, mixing barrel 2-1, external circulation pipeline 2-2, internal circulation pipeline 2-3, stirring mechanism 2-4, stirring end 2-4-1, density meter 2-5, main circulation pipeline 2-6, circulation mechanism power source 2-7, weighing mechanism 3, feeding and discharging mechanism 4, cover 4-1, mud feed port 4-2, powder feed port 4-3, aggregate feed port 4-4, water feed port 4-5, reinforcing rib 4-6, buffer mechanism 5. DETAILED DESCRIPTION

[0024] In order to facilitate understanding of the technical solution of the present invention, a detailed description is given below with reference to the accompanying drawings and specific embodiments.

[0025] Example 1 like Figure 1 As shown, a mixing device for producing fluidized solidified soil to replace shield synchronous mortar includes a frame and a vibrating screen assembly 1 and a mixing barrel assembly 2 arranged on the frame; like Figure 2-5 As shown, the vibrating screen assembly 1 includes a vibrating screen housing 1-1, a mud remover 1-2 arranged in the vibrating screen housing 1-1, a vibrating screen 1-3, a flushing pipeline 1-4 and a vibrating screen discharge pipe 1-5; like Figure 6-7 As shown, the mixing barrel assembly 2 includes a mixing barrel 2-1, an external circulation pipeline 2-2, an internal circulation pipeline 2-3 and a stirring mechanism 2-4 arranged on the mixing barrel 2-1, one end of the external circulation pipeline 2-2 is connected to the mixing barrel 2-1, and the other end is connected to the flushing pipeline 1-4, the internal circulation pipeline 2-3 is provided with a density measuring instrument 2-5, and the stirring end 2-4-1 of the stirring mechanism 2-4 is located at the bottom of the mixing barrel 2-1; a weighing mechanism 3 is provided at the bottom of the mixing barrel 2-1, and the mud density is monitored in real time by the density measuring instrument 2-5 on the internal circulation pipeline 2-3, and the weight data is fed back by the weighing mechanism 3 at the bottom of the mixing barrel to realize dynamic density adjustment.

[0026] A main circulation pipeline 2-6 is provided on one side of the mixing barrel 2-1, and a circulation mechanism power source 2-7 is provided on the main circulation pipeline 2-6. The end of the main circulation pipeline 2-6 is connected to the external circulation pipeline 2-2 and the internal circulation pipeline 2-3. Both the external circulation pipeline 2-2 and the internal circulation pipeline 2-3 are provided with regulating valves. The main circulation pipeline 2-6 integrates the circulation mechanism power source 2-7 to provide stable pressure for internal and external circulation, ensure the flow efficiency of high-viscosity mud, and at the same time, open or close the corresponding regulating valve according to demand to realize the closing and opening of the external circulation pipeline 2-2 and the internal circulation pipeline 2-3.

[0027] The upper end of the mixing barrel 2-1 is provided with a material inlet and outlet mechanism 4, which is integrated into the upper end of the mixing barrel, simplifying the structure, reducing material transfer links, and reducing pollution risks.

[0028] The feeding and discharging mechanism 4 includes a cover body 4-1 arranged at the upper end of the mixing barrel 2-1, and the cover body 4-1 is provided with a mud feeding port 4-2, a powder feeding port 4-3, an aggregate feeding port 4-4 and a water feeding port 4-5. The independent feeding ports of mud, powder, aggregate and water can realize the sequential input of raw materials, avoid pre-mixing agglomeration, and improve the mixing quality.

[0029] The upper surface of the cover 4-1 is provided with a well-shaped reinforcement rib 4-6, and the middle of the reinforcement rib 4-6 is provided with a stirring mechanism 2-4. The well-shaped reinforcement rib 4-6 enhances the deformation resistance of the cover and is particularly suitable for the vibration load of the stirring mechanism 2-4.

[0030] like Figure 2-5 As shown, the mud-clearing blade 1-2 includes a mud-clearing motor 1-2-1, a mud-clearing shaft 1-2-2, and blades 1-2-3; the blades 1-2-3 are arranged on the mud-clearing shaft 1-2-2, and a driven wheel is provided at one end of the mud-clearing shaft 1-2-2, and a driving wheel is provided at one end of the mud-clearing motor 1-2-1. The driving wheel and the driven wheel outer shell are provided with a drive belt. When the mud-clearing motor 1-2-1 is turned, the driving wheel rotates, and the driven wheel 1-2-4 is driven by the drive belt to rotate, thereby causing the mud-clearing shaft 1-2-2 to rotate. In actual use, the number of mud-clearing shafts 1-2-2 and blades 1-2-3 can be set as needed. In addition, the direction of the mud-clearing shaft 1-2-2 can also be selected, for example, the mud-clearing shafts 1-2-2 rotate in the same direction or adjacent mud-clearing shafts 1-2-2 rotate in opposite directions.

[0031] A first screen 1-6 arranged horizontally or approximately horizontally is provided below the mud removing knife 1-2, and a second screen 1-7 arranged vertically or approximately vertically is provided on the vibrating screen 1-3. The first screen 1-6, the second screen 1-7 and the vibrating screen shell 1-1 enclose a mud removing cavity to prevent mud from splashing and ensure a clean working environment.

[0032] A third screen 1-8 is provided below the first screen 1-6 and the second screen 1-7, and below is the vibrating screen discharge pipe 1-5. The third screen 1-8 performs final filtration on the mud screened by the first screen 1-6 and the second screen 1-7 to ensure that the discharge particle size meets the standard and reduce the risk of pipeline blockage.

[0033] At least two flushing pipes 1-4 are connected to the external circulation pipe 2-2, each flushing pipe 1-4 is provided with multiple nozzles 1-4-1, and at least one flushing pipe 1-4 is provided on the left and right sides of the second screen 1-7. Multiple flushing pipes 1-4 cover both sides of the second screen 1-7, and cooperate with multiple nozzles 1-4-1 to form a mesh water flow to thoroughly remove the residual mud residue in the screen holes.

[0034] The vibrating screen 1-3 includes a vibrating motor 1-3-1, a rotating shaft 1-3-2 arranged on the vibrating motor 1-3-1, and an eccentric block 1-3-3 located on the rotating shaft 1-3-2; the eccentric block 1-3-3 has an uneven texture, so that the center of gravity of the eccentric block 1-3-3 is not on the rotation center of gravity, and an eccentric shell 1-3-4 connected to the vibrating screen shell 1-1 is provided on the rotating shaft 1-3-2. The eccentric block 1-3-3 rotates to generate an eccentric force, which causes the vibrating screen shell 1-1 to vibrate through the rotating shaft 1-3-2 and the eccentric shell 1-3-4. The eccentric block 1-3-3 amplifies the vibration force through the rotating shaft 1-3-2 and the eccentric shell 1-3-4, thereby increasing the shaking intensity of the screen.

[0035] A buffer mechanism 5 is provided between the vibrating screen assembly 1 and the frame. The buffer mechanism 5 absorbs the vibration energy transmitted by the vibrating screen, prevents structural fatigue or bolt loosening caused by frame resonance, reduces working noise, and improves equipment life and operating comfort.

[0036] The above are only preferred embodiments of the present invention. The scope of protection of the present invention shall be based on the scope defined by the claims. Several improvements and modifications made by those skilled in the art without departing from the spirit and scope of the present invention should also be regarded as the scope of protection of the present invention.

Claims

1. A stirring device for producing fluidized solidified soil to replace shield synchronous mortar, characterized in that: The invention comprises a frame, a vibrating screen assembly (1) and a mixing barrel assembly (2) arranged on the frame, wherein the vibrating screen assembly (1) comprises a vibrating screen housing (1-1), a mud-removing knife (1-2) and a vibrating screen (1-3) arranged in the vibrating screen housing (1-1); the mixing barrel assembly (2) comprises a mixing barrel (2-1), a stirring mechanism (2-4) and a density measuring instrument (2-5) arranged on the mixing barrel (2-1), a stirring end (2-4-1) of the stirring mechanism (2-4) being located at the bottom of the mixing barrel (2-1); and a weighing mechanism (3) is provided at the bottom of the mixing barrel (2-1).

2. The stirring device for producing fluidized solidified soil to replace shield synchronous mortar according to claim 1 is characterized in that: The vibrating screen assembly (1) further includes a flushing pipeline (1-4) and a vibrating screen discharge pipeline (1-5); the stirring barrel assembly (2) further includes an external circulation pipeline (2-2) and an internal circulation pipeline (2-3); one end of the external circulation pipeline (2-2) is connected to the stirring barrel (2-1), and the other end is connected to the flushing pipeline (1-4); a density measuring instrument (2-5) is provided on the internal circulation pipeline (2-3); a circulation mechanism power source (2-7) is provided on one side of the stirring barrel (2-1); and regulating valves are provided on both the external circulation pipeline (2-2) and the internal circulation pipeline (2-3).

3. The stirring device for producing fluidized solidified soil to replace shield synchronous mortar according to claim 1 is characterized in that: A material feeding and discharging mechanism (4) is provided at the upper end of the mixing barrel (2-1).

4. The stirring device for producing fluidized solidified soil to replace shield synchronous mortar according to claim 3 is characterized in that: The feeding and discharging mechanism (4) comprises a cover body (4-1) arranged at the upper end of the mixing barrel (2-1), and a plurality of feeding ports are provided on the cover body (4-1).

5. The stirring device for producing fluidized solidified soil to replace shield synchronous mortar according to claim 3 is characterized in that: The upper surface of the cover body (4-1) is provided with a well-shaped reinforcing rib (4-6), and a stirring mechanism (2-4) is provided in the middle of the reinforcing rib (4-6).

6. The stirring device for producing fluidized solidified soil to replace shield synchronous mortar according to claim 1 is characterized in that: A first screen (1-6) arranged horizontally or approximately horizontally is provided below the mud-removing knife (1-2); a second screen (1-7) arranged vertically or approximately vertically is provided on the vibrating screen (1-3); the first screen (1-6), the second screen (1-7) and the vibrating screen housing (1-1) together enclose a mud-removing cavity.

7. The stirring device for producing fluidized solidified soil to replace shield synchronous mortar according to claim 6 is characterized in that: A third screen (1-8) is provided below the first screen (1-6) and the second screen (1-7), and a vibrating screen discharge pipe (1-5) is located below the third screen.

8. The stirring device for producing fluidized solidified soil to replace shield synchronous mortar according to claim 6, characterized in that: At least two flushing pipelines (1-4) are connected to the external circulation pipeline (2-2), each flushing pipeline (1-4) is provided with a plurality of nozzles (1-4-1), and at least one flushing pipeline (1-4) is provided on the left and right sides of the second screen (1-7).

9. The stirring device for producing fluidized solidified soil to replace shield synchronous mortar according to claim 1, characterized in that: The vibrating screen (1-3) comprises a vibrating motor (1-3-1), a rotating shaft (1-3-2) arranged on the vibrating motor (1-3-1), and an eccentric block (1-3-3) located on the rotating shaft (1-3-2); the eccentric block (1-3-3) has an uneven texture; an eccentric housing (1-3-4) connected to the vibrating screen housing (1-1) is provided on the rotating shaft (1-3-2); the eccentric block (1-3-3) rotates to generate an eccentric force, which, through the rotating shaft (1-3-2) and the eccentric housing (1-3-4), causes the vibrating screen housing (1-1) to vibrate.

10. The stirring device for producing fluidized solidified soil to replace shield synchronous mortar according to claim 1, characterized in that: A buffer mechanism (5) is provided between the vibrating screen assembly (1) and the frame.

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