Fluidized solidified soil processing and pouring device

Abstract

The invention belongs to the technical field of pouring equipment, and particularly relates to a flow-state solidified soil processing and pouring device. According to the technical scheme, the flow-state solidified soil processing and pouring device comprises a vehicle body, an intelligent walking device is installed at the bottom of the vehicle body, a material taking mechanism is arranged at the tail of the vehicle body, a vibration mechanism and a screen are arranged on the material taking mechanism, a stirring device is arranged in the middle of the vehicle body, and the outlet end of the material taking mechanism extends to the upper side of the stirring device; the stirring device comprises a triangular stirring assembly; an industrial hose pump is installed at the end, away from the material taking mechanism, of the stirring device and connected with a flow-state solidified soil conveying pipe, and a pressure pumping device is connected to the flow-state solidified soil conveying pipe. The vehicle body is further provided with a feeding mechanism used for adding water and a curing agent into the stirring device. The invention provides a fluid solidified soil processing and pouring device.

Description

Technical Field

[0001] This invention belongs to the field of casting equipment technology, and specifically relates to a device for processing and casting fluidized solidified soil. Background Technology

[0002] In the construction industry, premixed fluidized bed soil has become a core material for backfilling projects such as trenches, foundation pits, and pipe corridors due to its advantages of environmental friendliness, high efficiency, and good molding quality. It is made primarily from excavated soil, mixed with a solidifying agent and water, achieving resource recycling and aligning with the green and low-carbon development concept of the construction industry. Currently, fluidized bed soil is mainly divided into two types: on-site premixing and field mixing. On-site premixing leads to increased transportation costs, severely restricting the large-scale application of fluidized bed soil. On the other hand, the shortcomings of on-site preparation equipment in terms of mixing effect, screening efficiency, proportioning accuracy, and energy consumption control are becoming increasingly apparent, making it difficult to meet the high-efficiency construction requirements under complex working conditions. Therefore, fluidized bed soil technology should focus on addressing the shortcomings of on-site preparation technology and optimizing and upgrading the equipment accordingly.

[0003] The closest existing solution is "A mobile premixed fluidized solidified soil preparation device with uniform mixing function" (patent application number: 202511551489.6). This device mainly consists of a mobile frame, a mixer, a vibrating screen assembly, a material handling mechanism, a control host, and supporting pipelines and valves. Its core design includes: casters at the bottom of the mobile frame for movement; a mixing assembly with a combination of double mixing shafts and spiral blades inside the mixer to improve mixing uniformity; a two-stage screen design for raw material screening; transportation and pouring of the fluidized solidified soil via an industrial hose pump; and automated control of all components by the control host. This device solves the problems of large size, need for secondary transfer, and uneven mixing associated with traditional devices, but there is still room for improvement in areas such as cleaning of mixing dead zones, screening efficiency, dynamic proportioning, and energy consumption optimization.

[0004] The existing technology has the following main disadvantages: 1. Limitations in mixing effect: The mixing components have poor adaptability to high-viscosity materials (when the raw material is clay). There are dead zones between the inner wall of the mixer and the blades, resulting in insufficient mixing of local materials and affecting the uniformity of the quality of the fluidized solidified soil. At the same time, the accumulation of material is difficult to clean, increasing maintenance costs.

[0005] 2. Low efficiency of the screening system: The screen of the vibrating screen component is designed with a fixed inclined angle. Large particles of impurities are easy to accumulate and clog the screen surface, reducing the screening speed. In addition, there is no anti-splash structure during the screening process, and material splashing causes raw material loss and construction environment pollution.

[0006] 3. Lack of dynamic adaptation in mix proportion control: The amount of solidifying agent and water added is controlled only by preset parameters, without taking into account the real-time changes in the moisture content and particle size of the excavated soil. This results in insufficient mix proportion accuracy and poor fluidity and strength stability of the solidified soil.

[0007] 4. Inadequate energy consumption control: The mixing motor, vibrating motor, pumping motor, etc., all have constant power output and are not intelligently adjusted according to actual working conditions such as material load and screening status, resulting in unnecessary energy waste and not in line with the concept of green construction. Summary of the Invention

[0008] In order to solve the above-mentioned problems in the prior art, the purpose of the present invention is to provide a fluidized solidified soil processing and pouring device.

[0009] The technical solution adopted in this invention is as follows: A fluidized solidified soil processing and casting device includes a vehicle body, an intelligent walking device installed at the bottom of the vehicle body, a material picking mechanism at the rear of the vehicle body, a vibration mechanism and a screen installed on the material picking mechanism, and a mixing device in the middle of the vehicle body. The outlet end of the material picking mechanism extends to the upper side of the mixing device, which includes a triangular mixing assembly. An industrial hose pump is installed at the end of the mixing device away from the material picking mechanism. The industrial hose pump is connected to a fluidized solidified soil conveying pipe, and a pressure pumping device is connected to the fluidized solidified soil conveying pipe. The vehicle body is also equipped with a feeding mechanism for adding water and solidifying agent to the mixing device.

[0010] The material handling mechanism of this invention incorporates a vibration mechanism and a screen, which improves screening efficiency, prevents screen clogging and material splashing, enhances raw material utilization, and improves the construction environment. The mixing device includes a triangular mixing assembly, which eliminates dead zones, reduces material adhesion, improves the mixing uniformity of high-viscosity materials, and simultaneously reduces cleaning difficulty and maintenance costs. This invention connects a pressure pumping device in series with an industrial flexible hose pump, enabling precise adjustment and stable output of pumping pressure to meet conveying needs under different working conditions.

[0011] In a preferred embodiment of the present invention, the material handling mechanism includes a support frame installed at the rear of the vehicle body, a material handling trough fixed on the support frame, a screen disposed on the upper side of the material handling trough, and a discharge hopper disposed on the lower side of the material handling trough. The outlet of the discharge hopper extends to the upper side of the mixing device. The vibration mechanism is a vibration motor installed on the side wall of the material handling trough. The material handling mechanism is located at the rear of the vehicle body and is used for automatic material handling and feeding. When material is added into the material handling trough, the screen screens large particles of impurities when the vibration motor vibrates.

[0012] As a preferred embodiment of the present invention, a splash guard is provided at the top edge of the material receiving trough. The splash guard can prevent material from splashing.

[0013] In a preferred embodiment of the present invention, a chute is provided at the outlet of the discharge hopper, and a sealing plate for closing the outlet of the discharge hopper is fitted inside the chute; a rotating arm is rotatably connected to the support frame, and a strip groove is provided at the other end of the rotating arm. A sliding column is fitted inside the strip groove, and a connecting rod is fixed to the sliding column. The other end of the connecting rod is rotatably connected to the sealing plate. After the angle of the rotating arm is adjusted, the rotating arm can pull the sealing plate up and down through the connecting rod, thereby opening and closing the outlet of the discharge hopper.

[0014] As a preferred embodiment of the present invention, the mixing device includes a mixing tank fixed on the vehicle body, a fluidized solidified soil conveying pipe connected to the mixing tank, a rotary drive mechanism installed on the mixing tank, and a triangular mixing assembly including three mixing shafts arranged in a triangular shape, the mixing shafts being rotatably connected to the mixing tank, and the output end of the rotary drive mechanism being connected to the three mixing shafts respectively.

[0015] The outer wall of the mixing shaft is equipped with first, second, and third spiral blades to ensure uniform mixing of materials. An openable cover is installed at the top of the mixing tank to prevent dust generation during the addition of the curing agent and to prevent slurry splashing during mixing. The top of the mixing tank's outer wall is connected to a curing agent inlet pipe and a water inlet pipe, while the bottom is equipped with a fluidized solidified soil conveying pipe and a drain pipe. It is also equipped with components such as a curing agent mixing valve, a water flow control valve, and a drain valve.

[0016] As a preferred embodiment of the present invention, the mixing tank is further connected to a drain pipe, and a drain valve is connected to the drain pipe.

[0017] As a preferred embodiment of the present invention, the feeding device includes a mounting base fixed to the vehicle body, a curing agent tank and a water tank. The mounting base is connected to a water inlet pipe and a curing agent feed pipe. The water inlet pipe is connected to the water tank through a pipe, and the end of the water inlet pipe extends into the mixing device. The curing agent feed pipe is connected to the curing agent tank through a pipe, and the end of the curing agent feed pipe extends into the mixing device.

[0018] In a preferred embodiment of the present invention, the pressure pumping device includes a booster pump, the inlet of which is connected to a fluidized solidified soil conveying pipe, and a pressure sensor and a pressure regulating valve connected to the outlet pipe of the booster pump. The booster pump is connected to the outlet pipe of an industrial hose pump via a flange to provide adjustable pressure; the pressure sensor is installed on the outlet pipe of the booster pump to detect the pumping pressure in real time; the pressure regulating valve is linked to the booster pump and can manually or automatically adjust the pumping pressure according to construction requirements. As a preferred embodiment of the present invention, the vehicle body is also equipped with a control host, which integrates a PLC controller, a touch screen display and a wireless communication module. The control host is connected to the stirring device, the vibration mechanism, the material handling mechanism, the pressure pumping device and the intelligent walking device through control cables or wireless signals to realize the automated control of the entire system.

[0019] As a preferred embodiment of the present invention, the intelligent walking device uses a truck as the traction power for walking and includes a positioning module. The positioning module integrates a GPS positioning unit and a laser ranging sensor to acquire the device's position information in real time and feed it back to the control host to achieve accurate positioning.

[0020] The beneficial effects of this invention are as follows: The material handling mechanism of this invention incorporates a vibration mechanism and a screen, which improves screening efficiency, prevents screen clogging and material splashing, enhances raw material utilization, and improves the construction environment. The mixing device includes a triangular mixing assembly, which eliminates dead zones, reduces material adhesion, improves the mixing uniformity of high-viscosity materials, and simultaneously reduces cleaning difficulty and maintenance costs. This invention connects a pressure pumping device in series with an industrial flexible hose pump, enabling precise adjustment and stable output of pumping pressure to meet conveying needs under different working conditions. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the material handling mechanism; Figure 3 This is a structural diagram of the mixing device and the feeding mechanism; Figure 4 This is a schematic diagram of the feeding mechanism and pressure pumping device.

[0022] In the diagram: 1-Vehicle body; 2-Intelligent walking device; 3-Material handling mechanism; 4-Mixing device; 5-Fluidized solidified soil conveying pipe; 6-Pressure pumping device; 7-Feeding mechanism; 8-Control host; 31-Support frame; 32-Material handling trough; 33-Discharge hopper; 34-Vibration motor; 35-Splash guard; 36-Slide chute; 37-Sealing plate; 38-Rotating arm; 39-Connecting rod; 41-Mixing tank; 42-Mixing shaft; 43-Shield; 44-Drainage pipe; 61-Booster pump; 71-Mounting base; 72-Cure agent tank; 73-Water inlet pipe; 74-Cure agent feed pipe. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention. It should be noted that, unless otherwise specified, the embodiments and features described in the embodiments of the invention can be combined with each other.

[0025] like Figures 1-4 As shown, the fluidized solidified soil processing and pouring device of this embodiment includes a vehicle body 1, an intelligent walking device 2 installed at the bottom of the vehicle body 1, a material picking mechanism 3 at the rear of the vehicle body 1, a vibration mechanism and a screen on the material picking mechanism 3, a mixing device 4 in the middle of the vehicle body 1, the outlet end of the material picking mechanism 3 extending to the upper side of the mixing device 4, and the mixing device 4 including a triangular mixing assembly; an industrial hose pump is installed at the end of the mixing device 4 away from the material picking mechanism 3, the industrial hose pump is connected to a fluidized solidified soil conveying pipe 5, and a pressure pumping device 6 is connected to the fluidized solidified soil conveying pipe 5; the vehicle body 1 is also provided with a feeding mechanism 7 for adding water and curing agent into the mixing device 4.

[0026] The material handling mechanism 3 of this invention is equipped with a vibration mechanism and a screen, which can improve screening efficiency, prevent screen blockage and material splashing, improve raw material utilization, and improve the construction environment. The mixing device 4 includes a triangular mixing assembly, which can eliminate mixing dead zones, reduce material adhesion, improve the mixing uniformity of high-viscosity materials, and at the same time reduce cleaning difficulty and maintenance costs. This invention connects a pressure pumping device 6 in series with an industrial flexible hose pump to achieve precise adjustment and stable output of pumping pressure, solving the conveying needs under different working conditions.

[0027] Specifically, the material handling mechanism 3 includes a support frame 31 installed at the rear of the vehicle body 1. A material handling trough 32 is fixed on the support frame 31. A screen is disposed on the upper side of the material handling trough 32. A discharge hopper 33 is disposed on the lower side of the material handling trough 32. The outlet of the discharge hopper 33 extends to the upper side of the mixing device 4. The vibration mechanism is a vibration motor 34, which is installed on the side wall of the material handling trough 32. The material handling mechanism 3 is located at the rear of the vehicle body 1 and is used for automatic material handling and feeding. When the material is added into the material handling trough 32, the screen screens large particles of impurities when the vibration motor 34 vibrates.

[0028] The top edge of the material feeding trough 32 is provided with a splash guard 35. The splash guard 35 can prevent material from splashing.

[0029] Furthermore, a chute 36 is provided at the outlet of the discharge hopper 33, and a sealing plate 37 for closing the outlet of the discharge hopper 33 is fitted inside the chute 36. A rotating arm 38 is rotatably connected to the support frame 31, and a strip groove is provided at the other end of the rotating arm 38. A sliding column is fitted inside the strip groove, and a connecting rod 39 is fixed to the sliding column. The other end of the connecting rod 39 is rotatably connected to the sealing plate 37. After the angle of the rotating arm 38 is adjusted, the rotating arm 38 can pull the sealing plate 37 up and down through the connecting rod 39, thereby opening and closing the outlet of the discharge hopper 33.

[0030] Specifically, the mixing device 4 includes a mixing tank 41 fixed to the vehicle body 1, a fluidized solidified soil conveying pipe 5 connected to the mixing tank 41, a rotary drive mechanism installed on the mixing tank 41, and a triangular mixing assembly including three mixing shafts 42 arranged in a triangular pattern. The mixing shafts 42 are rotatably connected to the mixing tank 41, and the output end of the rotary drive mechanism is connected to the three mixing shafts 42 respectively. A drain pipe 44 is also connected to the mixing tank 41, and a drain valve is connected to the drain pipe 44.

[0031] The outer wall of the stirring shaft 42 is equipped with a first spiral blade, a second spiral blade, and a third spiral blade to ensure uniform mixing of materials. An openable cover 43 is installed on the upper part of the mixing tank 41 to prevent dust generation during the addition of the curing agent and to prevent mud splashing during mixing. The top of the outer wall of the mixing tank 41 is connected to a curing agent inlet pipe 74 and a water inlet pipe 73, and the bottom is equipped with a fluidized solidified soil conveying pipe 5 and a drain pipe 44, along with components such as a curing agent preparation valve, a water flow control valve, and a drain valve.

[0032] Specifically, the feeding device includes a mounting base 71 fixed on the vehicle body 1, a curing agent tank 72 and a water tank. The mounting base 71 is connected to a water inlet pipe 73 and a curing agent feed pipe 74. The water inlet pipe 73 is connected to the water tank through a pipe, and the end of the water inlet pipe 73 extends into the mixing device 4. The curing agent feed pipe 74 is connected to the curing agent tank 72 through a pipe, and the end of the curing agent feed pipe 74 extends into the mixing device 4.

[0033] Specifically, the pressure pumping device 6 includes a booster pump 61, the inlet of which is connected to the fluidized solidified soil conveying pipe 5, and a pressure sensor and a pressure regulating valve connected to the outlet pipe of the booster pump 61. The booster pump 61 is connected to the outlet pipe of an industrial hose pump via a flange to provide adjustable pressure; the pressure sensor is installed on the outlet pipe of the booster pump 61 to detect the pumping pressure in real time; the pressure regulating valve is linked to the booster pump 61 and can manually or automatically adjust the pumping pressure according to construction needs. Specifically, the vehicle body 1 is also equipped with a control host 8, which integrates a PLC controller, a touch screen display and a wireless communication module. The control host 8 is connected to the stirring device 4, the vibration mechanism, the material handling mechanism 3, the pressure pumping device 6 and the intelligent walking device 2 through control cables or wireless signals to realize the automated control of the entire system.

[0034] Specifically, the intelligent walking device 2 uses a truck as its walking traction power and includes a positioning module. The positioning module integrates a GPS positioning unit and a laser ranging sensor to acquire the device's position information in real time and feed it back to the control host 8 to achieve precise positioning.

[0035] Material handling process: An excavator is used to transport the excavated soil to the material receiving mechanism 3. After screening, large particles of impurities are removed, and the qualified excavated soil falls into the mixer. The control host 8 controls the opening of the curing agent preparation valve and the water control valve according to the preset ratio, accurately delivering the curing agent and water into the mixing device 4; the rotary drive mechanism drives the mixing shaft 42 to rotate through the transmission chain, and the mixing blades realize the spiral cross mixing of materials to ensure uniform mixing.

[0036] Pressure pumping principle: The mixed fluidized solidified soil is conveyed through the fluidized solidified soil delivery pipe 5, then sequentially through an industrial hose pump and a pressure pumping device 6. The industrial hose pump provides the basic conveying power, while the booster pump 61 adjusts the output pressure according to construction requirements (such as conveying distance and pouring height). A pressure sensor detects the pipeline pressure in real time and feeds it back to the control host 8. When the pressure exceeds a preset threshold, the pressure regulating valve automatically releases pressure, and the buffer tank absorbs pipeline pressure fluctuations, ensuring that the pumping pressure remains stable within the set range, thus achieving stable long-distance, high-pressure conveying of the fluidized solidified soil.

[0037] Intelligent walking principle: The control host 8 receives the position information from the positioning module and combines it with the coordinates of the construction area to realize the automatic movement and precise positioning of the device.

[0038] Collaborative control principle: The main control unit 8 integrates linkage control logic for mixing parameters, screening parameters, pumping pressure, and travel status. For example, when the positioning module detects that the device has moved to a new pouring area, it automatically adjusts the pumping pressure to match the pouring distance of that area; when the pressure sensor detects abnormal pipeline pressure, it automatically reduces the discharge speed of the mixer and adjusts the working status of the booster pump 61 to ensure stable system operation.

[0039] The pumping adaptability of the present invention is wider: the newly added booster pump 61 can achieve an adjustable pressure output of 0.5 to 3.0 MPa. With the help of the buffer tank to stabilize the pressure, the maximum conveying distance of the fluidized solidified soil is increased to 200m, which can meet the pouring needs of complex working conditions such as long distance, high altitude and deep foundation pit, and solve the problems of insufficient pumping pressure and limited conveying range of the existing device.

[0040] Higher mobility and positioning accuracy: The intelligent walking device 2 adopts a precision positioning module, with positioning error controlled within ±5cm, and the device positioning efficiency is improved by 40%.

[0041] Higher levels of automation and intelligence: Through multi-system collaborative control, construction parameters can be adjusted in real time, reducing manual intervention. The system can automatically plan the walking path and match the pumping pressure according to the construction area, further improving construction efficiency and the quality of preparation and pouring of fluidized solidified soil, and reducing construction costs.

[0042] With a wider range of applications: The optimized device is not only suitable for conventional foundation pit backfilling, but can also be widely used in various construction scenarios such as high-rise building foundation backfilling, long-distance pipe gallery backfilling, and complex terrain site leveling, making it more practical.

[0043] This invention is not limited to the above-described optional embodiments. Anyone can derive other various forms of products under the guidance of this invention. However, regardless of any changes made in their shape or structure, any technical solution that falls within the scope of the claims of this invention shall be protected by this invention.

Claims

1. A device for processing and casting fluidized solidified soil, characterized in that: The vehicle includes a vehicle body (1), an intelligent walking device (2) installed at the bottom of the vehicle body (1), a material picking mechanism (3) at the rear of the vehicle body (1), a vibration mechanism and a screen on the material picking mechanism (3), a stirring device (4) in the middle of the vehicle body (1), the outlet end of the material picking mechanism (3) extends to the upper side of the stirring device (4), the stirring device (4) includes a triangular stirring assembly; an industrial hose pump is installed at the end of the stirring device (4) away from the material picking mechanism (3), the industrial hose pump is connected to a fluidized solidified soil conveying pipe (5), and a pressure pumping device (6) is connected to the fluidized solidified soil conveying pipe (5); a feeding mechanism (7) for adding water and curing agent to the stirring device (4) is also provided on the vehicle body (1).

2. The fluidized solidified soil processing and casting device according to claim 1, characterized in that: The material taking mechanism (3) includes a support frame (31) installed at the rear of the vehicle body (1), a material taking trough (32) fixed on the support frame (31), a screen set on the upper side of the material taking trough (32), a discharge hopper (33) set on the lower side of the material taking trough (32), the outlet of the discharge hopper (33) extends to the upper side of the stirring device (4), and the vibration mechanism is a vibration motor (34), which is installed on the side wall of the material taking trough (32).

3. The fluidized solidified soil processing and casting device according to claim 2, characterized in that: The top edge of the material feeding trough (32) is provided with a splash guard (35).

4. The fluidized solidified soil processing and casting device according to claim 2, characterized in that: The outlet of the discharge hopper (33) is provided with a chute (36), and a sealing plate (37) for closing the outlet of the discharge hopper (33) is sleeved inside the chute (36); a rotating arm (38) is rotatably connected to the support frame (31), and a strip groove is provided at the other end of the rotating arm (38). A sliding column is sleeved inside the strip groove, and a connecting rod (39) is fixed to the sliding column. The other end of the connecting rod (39) is rotatably connected to the sealing plate (37).

5. The fluidized solidified soil processing and casting device according to claim 1, characterized in that: The mixing device (4) includes a mixing tank (41) fixed on the vehicle body (1), a fluidized solidified soil conveying pipe (5) connected to the mixing tank (41), a rotary drive mechanism installed on the mixing tank (41), and a triangular mixing assembly including three mixing shafts (42) arranged in a triangular shape. The mixing shafts (42) are rotatably connected to the mixing tank (41), and the output end of the rotary drive mechanism is connected to the three mixing shafts (42) respectively.

6. The fluidized solidified soil processing and casting device according to claim 5, characterized in that: The mixing tank (41) is also connected to a drain pipe (44), and a drain valve is connected to the drain pipe (44).

7. The fluidized solidified soil processing and casting device according to claim 1, characterized in that: The feeding device includes a mounting base (71) fixed on the vehicle body (1), a curing agent tank (72) and a water tank. The mounting base (71) is connected to a water inlet pipe (73) and a curing agent feed pipe (74). The water inlet pipe (73) is connected to the water tank through a pipe, and the end of the water inlet pipe (73) extends into the stirring device (4). The curing agent feed pipe (74) is connected to the curing agent tank (72) through a pipe, and the end of the curing agent feed pipe (74) extends into the stirring device (4).

8. The fluidized solidified soil processing and casting device according to claim 1, characterized in that: The pressure pumping device (6) includes a booster pump (61), the inlet of which is connected to the fluidized solidified soil conveying pipe (5), and a pressure sensor and a pressure regulating valve are connected to the outlet pipe of the booster pump (61).

9. A device for processing and casting fluidized solidified soil according to any one of claims 1 to 8, characterized in that: The vehicle body (1) is also equipped with a control host (8), which integrates a PLC controller, a touch screen and a wireless communication module. The control host (8) is connected to the stirring device (4), the vibration mechanism, the material handling mechanism (3), the pressure pumping device (6) and the intelligent walking device (2) through control cables or wireless signals.

10. The fluidized solidified soil processing and casting device according to claim 9, characterized in that: The intelligent walking device (2) uses a truck as the traction power for walking and includes a positioning module. The positioning module integrates a GPS positioning unit and a laser ranging sensor to obtain the device's location information in real time and feed it back to the control host (8).

Images