A mixing device for constructing a vertical barrier wall for groundwater

Abstract

The utility model discloses a kind of for construction underground water vertical barrier wall's mixing equipment, including fixing frame, stirring tank is arranged on the fixing frame along horizontal direction, forced stirring subassembly is rotatably arranged in the stirring tank, one end of the forced stirring subassembly is connected with driving mechanism, powder feeding mechanism is arranged in the stirring tank side, water injection pipe is arranged in the powder feeding mechanism side, water injection pipe one end is connected with the water outlet end of water supply pump, the utility model relates to underground water vertical barrier wall construction technical field, by powder feeding mechanism, cement, sand and additive particles are added into stirring tank, and water body is filled in cooperation with water injection pipe, in the process of powder and water body feeding, start driving mechanism to rotate control forced stirring subassembly, forced stirring subassembly is used to the forced stirring of mixture, and then realize the on-site preparation of cement mortar, can efficiently satisfy the use needs of underground water vertical barrier wall construction.

Description

Technical Field

[0001] This utility model relates to the field of construction technology for vertical groundwater barrier walls, specifically a mixing device for constructing vertical groundwater barrier walls. Background Technology

[0002] Vertical groundwater barrier walls are an engineering technology that controls pollutant migration by constructing low-permeability vertical barriers. They are mainly used for pollution source isolation, groundwater flow regulation, and protection of sensitive areas. Currently, vertical groundwater barrier walls are generally constructed from materials such as mud walls, grouting walls, or HDPE geomembranes to form vertical barriers, blocking the spread of pollution plumes or altering the flow path of groundwater. However, regardless of the type of barrier wall, the construction of cement mortar is essential as a raw material. In existing technologies, cement mortar is typically mixed and prepared at a mixing plant and then transported to the construction site by tanker trucks. This process involves complex scheduling and coordination, significantly impacting the construction progress of vertical groundwater barrier walls. Therefore, this project was developed to address these issues in depth. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a mixing device for constructing vertical groundwater barrier walls, thus solving the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a mixing device for constructing a vertical barrier wall for groundwater, comprising a fixed frame, a mixing tank arranged horizontally on the fixed frame, a forced mixing component rotatably arranged inside the mixing tank, one end of the forced mixing component being connected to a drive mechanism, a powder feeding mechanism arranged on the side of the mixing tank, a water injection pipe arranged on one side of the powder feeding mechanism, one end of the water injection pipe being connected to the outlet of a water supply pump, an electromagnetic flow valve and an electromagnetic flow meter installed on the water injection pipe, and a mortar conveying mechanism arranged at the bottom of the mixing tank, the lower end of the mortar conveying mechanism being connected to a mortar pump through a slurry pipe.

[0005] The aforementioned powder feeding mechanism includes a powder hopper mounted on the side wall of a fixed frame, and a tubular screw conveyor is vertically positioned between the lower outlet of the powder hopper and the mixing tank.

[0006] The number of the aforementioned powder dispensing mechanisms shall not be less than three sets.

[0007] The aforementioned forced stirring assembly includes a stirring shaft and a frame-type stirring paddle. The stirring shaft is rotatably disposed inside the stirring tank, and the frame-type stirring paddle is fixedly mounted on the stirring shaft. The outer frame of the frame-type stirring paddle is provided with a hard rubber scraper, which rubs against the inner wall of the stirring tank.

[0008] The aforementioned drive mechanism includes a stepper motor, a reducer, and a fixed shaft. The input end of the reducer is connected to the drive end of the stepper motor, and one end of the fixed shaft is connected to the output shaft of the reducer, while the other end is connected to the forced stirring assembly.

[0009] The aforementioned mounting bracket can be installed on the vehicle body, using the vehicle body as a mobile carrier to adjust the working position of the equipment.

[0010] The mortar conveying mechanism includes a U-shaped trough, a spiral auger, a rotary motor, and a reducer. The U-shaped trough is located at the bottom of the mixing tank and its upper end is connected to the mixing tank. The spiral auger is rotatably installed inside the U-shaped trough. The input end of the reducer is connected to the drive end of the rotary motor, and the output end of the reducer is connected to one end of the spiral auger. Beneficial effects

[0011] This utility model provides a mixing device for constructing vertical groundwater barrier walls. It offers the following advantages: The mixing device, based on a fixed frame, houses a mixing tank. Cement, sand, and additive particles are added to the mixing tank via a powder feeding mechanism, and water is injected through a water injection pipe. During the powder and water addition process, a drive mechanism is activated to control the rotation of the forced mixing component, which forcibly mixes the mixture, thereby achieving on-site preparation of cement mortar. The prepared cement mortar is discharged via a mortar pump and supplied for grouting or pouring. The device features a simple structure, convenient operation, and can efficiently meet the needs of constructing vertical groundwater barrier walls, reducing cement mortar transportation costs. Attached Figure Description

[0012] Figure 1 This is a front view structural schematic diagram of a mixing device for constructing a vertical barrier wall for groundwater, as described in this utility model.

[0013] Figure 2 This is a front cross-sectional structural schematic diagram of a mixing device for constructing a vertical barrier wall for groundwater, as described in this utility model.

[0014] Figure 3 This is a side view sectional structural diagram of a mixing device for constructing a vertical barrier wall for groundwater, as described in this utility model.

[0015] In the diagram: 1. Fixed frame; 2. Mixing tank; 3. Water injection pipe; 4. Electromagnetic flow valve; 5. Electromagnetic flow meter; 6. Slurry pipe; 7. Mortar pump; 8. Powder hopper; 9. Tubular screw conveyor; 10. Mixing shaft; 11. Frame-type mixing paddle; 12. Hard rubber scraper; 13. Stepper motor; 14. Reducer; 15. Fixed shaft; 16. U-shaped trough; 17. Spiral auger; 18. Rotary motor; 19. Reducer. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Example: Refer to the appendix of the instruction manual Figure 1-3 As can be seen, this application specifically designs a mixing device for constructing a vertical barrier wall for groundwater. A mixing tank 2 is horizontally mounted on a fixed frame 1. A forced mixing component is rotatably mounted inside the mixing tank 2, with one end connected to a drive mechanism. A powder feeding mechanism is located on the side of the mixing tank 2, and a water injection pipe 3 is located on one side of the powder feeding mechanism. One end of the water injection pipe 3 is connected to the outlet of a water supply pump. An electromagnetic flow valve 4 and an electromagnetic flow meter 5 are installed on the water injection pipe 3. A mortar conveying mechanism is located at the bottom of the mixing tank 2, and the lower end of the mortar conveying mechanism is connected to a mortar pump 7 via a slurry pipe 6 for fixing... Based on frame 1, a mixing tank 2 is installed on the fixed frame 1. Cement, sand, and additive particles are added to the mixing tank 2 through a powder feeding mechanism, and water is injected through a water injection pipe 3. During the powder and water feeding process, the drive mechanism is activated to control the rotation of the forced mixing component. The forced mixing component is used to forcefully mix the mixture, thereby realizing the on-site preparation of cement mortar. The prepared cement mortar is discharged through mortar pump 7 and supplied to the grouting or pouring stage. The structure is simple and easy to operate, which can efficiently meet the needs of the construction of vertical groundwater barrier walls and reduce the transportation cost of cement mortar.

[0018] In the specific implementation process, as a preferred setting, the above-mentioned powder feeding mechanism includes a powder hopper 8 set on the side wall of the fixed frame 1, and a tubular screw conveyor 9 is set vertically between the lower outlet of the powder hopper 8 and the mixing tank 2. Furthermore, the number of powder feeding mechanisms is not less than three sets, which are used to feed powdered raw materials such as cement, sand and additives.

[0019] In a preferred embodiment, the forced stirring assembly includes a stirring shaft 10 and a frame-type stirring paddle 11. The stirring shaft 10 is rotatably mounted inside the stirring tank 2, and the frame-type stirring paddle 11 is fixedly mounted on the stirring shaft 10. A hard rubber scraper 12 is provided on the outer frame of the frame-type stirring paddle 11, and the hard rubber scraper 12 rubs against the inner wall of the stirring tank 2. The driving mechanism includes a stepper motor 13, a reducer 14, and a fixed shaft 15. The input end of the reducer 14 is connected to the drive end of the stepper motor 13, and one end of the fixed shaft 15 is connected to the output shaft of the reducer 14. The other end is connected to the forced mixing assembly. In use, the fixed shaft 15 is rotated by the cooperation of the stepper motor 13 and the reducer 14. The rotation of the fixed shaft 15 drives the mixing shaft 10 and the frame mixing paddle 11 connected to it to rotate synchronously. During the rotation of the frame mixing paddle 11, the cement and sand mixture in the mixing tank 2 is stirred to produce cement mortar. At the same time, during the rotation of the frame mixing paddle 11, the hard rubber scraper 12 scrapes and cleans the slurry adhering to the inner wall of the mixing tank 2, which can effectively clean the dirt on the inner wall of the mixing tank 2 and reduce the difficulty of maintenance.

[0020] In the specific implementation process, as a preferred setting, the aforementioned fixing frame 1 can be installed on the vehicle body, using the vehicle body as a mobile carrier to realize the adjustment of the working position of the equipment, which can meet the on-site use under different working conditions, especially when the foundation pit is deep in the early stage of the construction of the groundwater vertical barrier wall, it is more convenient to use.

[0021] In specific implementation, as a preferred configuration, the above-mentioned mortar conveying mechanism includes a U-shaped trough 16, a spiral auger 17, a rotary motor 18, and a reducer 19. The U-shaped trough 16 is located at the bottom of the mixing tank 2 and its upper end is connected to the mixing tank 2. The spiral auger 17 is rotatably installed inside the U-shaped trough 16. The input end of the reducer 19 is connected to the drive end of the rotary motor 18, and the output end of the reducer 19 is connected to one end of the spiral auger 17. Through the cooperation of the rotary motor 18 and the reducer 19, the rotation control of the spiral auger 17 is realized. During the rotation of the spiral auger 17, it cooperates with the inner wall of the U-shaped trough 16 to convey cement mortar, and then discharges the cement mortar through the slurry pipe 6.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mixing apparatus for constructing a vertical barrier wall for groundwater, comprising a fixed frame, characterized in that, A mixing tank is horizontally mounted on the fixed frame. A forced mixing component is rotatably mounted inside the mixing tank. One end of the forced mixing component is connected to a drive mechanism. A powder feeding mechanism is mounted on the side of the mixing tank. A water injection pipe is mounted on one side of the powder feeding mechanism. One end of the water injection pipe is connected to the outlet of a water supply pump. An electromagnetic flow valve and an electromagnetic flow meter are mounted on the water injection pipe. A mortar conveying mechanism is mounted at the bottom of the mixing tank. The lower end of the mortar conveying mechanism is connected to a mortar pump through a slurry pipe.

2. The mixing apparatus for constructing a vertical barrier wall for groundwater according to claim 1, wherein The powder feeding mechanism includes a powder hopper mounted on the side wall of the fixed frame, and a tubular screw conveyor is vertically mounted between the lower outlet of the powder hopper and the mixing tank.

3. The mixing apparatus for constructing a vertical barrier wall for groundwater according to claim 1, wherein The number of powder feeding mechanisms shall not be less than three sets.

4. The mixing apparatus for constructing a vertical barrier wall for groundwater according to claim 1, wherein The forced stirring assembly includes a stirring shaft and a frame-type stirring paddle. The stirring shaft is rotatably mounted inside the stirring tank, and the frame-type stirring paddle is fixedly mounted on the stirring shaft. The outer frame of the frame-type stirring paddle is provided with a hard rubber scraper, which rubs against the inner wall of the stirring tank.

5. The mixing apparatus for constructing a vertical barrier wall for groundwater according to claim 1, wherein The driving mechanism includes a stepper motor, a reducer, and a fixed shaft. The input end of the reducer is connected to the drive end of the stepper motor, and one end of the fixed shaft is connected to the output shaft of the reducer, while the other end is connected to the forced stirring assembly.

6. A mixing device for constructing a vertical groundwater barrier wall according to claim 1, characterized in that, The mounting bracket can be installed on the vehicle body, using the vehicle body as a mobile carrier to adjust the working position of the equipment.

7. A mixing device for constructing a vertical groundwater barrier wall according to any one of claims 1-6, characterized in that, The mortar conveying mechanism includes a U-shaped trough, a spiral auger, a rotary motor, and a reducer. The U-shaped trough is located at the bottom of the mixing tank and its upper end is connected to the mixing tank. The spiral auger is rotatably installed inside the U-shaped trough. The input end of the reducer is connected to the drive end of the rotary motor, and the output end of the reducer is connected to one end of the spiral auger.

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