Mixing device for silt soil solidifying agent construction

Abstract

The application relates to a mixing device for silt soil solidifying agent construction, and relates to the technical field of soil solidifying agent construction equipment. The device comprises a rack, a mixing box, an observation window, a discharge port, a mixing cylinder, a rotating mechanism, a feeding plate and a first support frame. One end of the mixing cylinder is provided as a through end relative to the feeding plate, and the other end is provided as a closed end. Sealing shaft sleeves are arranged at the two ends of the mixing cylinder and the connecting positions of the mixing cylinder and the mixing box. The mixing device for silt soil solidifying agent construction guides materials into the device through the feeding plate, drives the mixing cylinder to stir through the rotating mechanism, guarantees the sealing property through the sealing shaft sleeves, uniformly mixes the materials, and conveniently discharges the materials through the observation window and the discharge port, so that the whole mixing process is efficient and stable.

Description

Technical Field

[0001] This application relates to the field of soil stabilizer construction equipment technology, and in particular to a mixing device for silt soil stabilizer construction. Background Technology

[0002] In municipal, water conservancy, and environmental remediation projects, solidifying agents are commonly used to solidify silty soils to improve their engineering properties. This process requires thorough and uniform mixing of the soil solidifying agent with the silt. Currently, common mixing devices mostly employ simple drum-type or paddle-type structures.

[0003] However, these existing technologies have many shortcomings: First, the mixing function is limited, and the mixed material may contain unbroken lumps or impurities, affecting the solidification quality. Additional screening equipment is often required after mixing, increasing the process flow and equipment costs. Second, traditional stirring devices are prone to material adhesion and blockage when mixing viscous sludge, resulting in poor material discharge. Finally, the drive mechanism is often directly connected to the mixing chamber and operates under high load and high corrosion environment for a long time, making maintenance and repair very inconvenient. Utility Model Content

[0004] To address the shortcomings of existing mixing devices, such as limited functionality, susceptibility to clogging, and inconvenient maintenance, this application provides a mixing device for the application of silt soil solidification agents.

[0005] The present application provides a mixing device for the construction of silt soil solidification agent, which adopts the following technical solution: it includes a frame, a mixing box connected to the frame, an observation window on one side of the mixing box, a discharge port on one side of the lower end face of the mixing box, a mixing cylinder rotatably disposed in the mixing box, a rotating mechanism for rotating the mixing cylinder, a feed plate that passes through the mixing box and communicates with the mixing cylinder, and a first support frame for supporting the feed plate and fixedly connected to the mixing box. One end of the mixing cylinder relative to the feed plate is set as a through end, and the other side is set as a closed end. Sealing bushings are respectively provided at the connection points between the two ends of the mixing cylinder and the mixing box.

[0006] By adopting the above technical solution, the frame serves as the foundation supporting the entire equipment, ensuring its stability; the mixing chamber, as the main container, houses the mixing cylinder and other components, and allows for smooth material discharge through the outlet; the observation window allows operators to easily monitor the internal mixing process; the outlet is the channel for discharging the mixed material; the rotating mixing cylinder, located within the mixing chamber, is driven by a rotating mechanism to achieve effective mixing of the materials; the feed plate guides the material into the mixing cylinder and is fixed to the device by the first support frame, ensuring the stability of the feeding operation; sealing sleeves are installed at the connection points between the mixing cylinder and the mixing chamber at both ends, effectively preventing material leakage and improving sealing. In summary, this device uses a rotating mechanism to drive the mixing cylinder for mixing, then the feed plate guides the material in, and the sealing sleeves ensure a tight seal, ultimately achieving uniform mixing of the materials. The observation window and outlet facilitate operation and material discharge, ensuring the entire mixing process is efficient and stable.

[0007] As a preferred embodiment, the mixing cylinder is provided with a mixing chamber, the inner diameter of which decreases sequentially from the end furthest from the feed plate to the other end; the end of the mixing chamber relative to the discharge port is provided as a screening chamber, and filter holes are uniformly provided on the screening chamber.

[0008] By adopting the above technical solution, the internal cavity design of the mixing cylinder is divided into two main parts: a mixing chamber and a screening chamber. The function of the mixing chamber is to mix materials through its gradually narrowing inner diameter. After the material enters from the feed inlet, as it propels itself within the chamber, the gradually decreasing space increases the friction and collision between the materials, thereby improving mixing efficiency. The screening chamber is located at the outlet end of the mixing chamber, and its evenly distributed filter holes are used to remove small particles or powders that do not meet the specifications in the mixture, thus achieving preliminary screening of the materials and ensuring that the final product meets the required purity and size standards.

[0009] As a preferred embodiment, the rotating mechanism includes a rotating shaft arranged parallel to the axis of the mixing chamber, several sets of mixing blades evenly arranged on the outer periphery of the rotating shaft, and a driving assembly for driving the rotating shaft; each set of mixing blades includes a connecting plate evenly arranged on the outer periphery of the rotating shaft, and the other end of the connecting plate is fixedly connected to the inner wall of the mixing cylinder.

[0010] By adopting the above technical solution, the rotating shaft in the rotating mechanism is responsible for transmitting power and is set parallel to the axis of the mixing chamber, so that the mixing blades can be pushed to rotate in a straight line when rotating. The mixing blades are connected to the rotating shaft through connecting plates evenly distributed on the outer periphery of the rotating shaft, and the other end of the connecting plate is fixed to the inner wall of the mixing cylinder. This design not only allows the mixing blades to be firmly installed on the rotating shaft, but also ensures that the mixing blades can effectively contact the inner wall of the mixing cylinder when rotating, thereby realizing the mixing of the materials. The drive component provides power to drive the rotating shaft and the mixing blades connected to it to rotate, thereby driving the materials in the mixing chamber to carry out the mixing operation.

[0011] As a preferred embodiment, the system further includes retaining members for maintaining the rotational stability of the mixing cylinder, the retaining members being disposed on both sides of the mixing cylinder.

[0012] By adopting the above technical solution, the axial and radial movement of the mixing cylinder during rotation is effectively limited, greatly improving the stability and reliability of equipment operation and extending its service life. As a preferred embodiment, the inner diameter of the screening chamber is smaller than the maximum inner diameter of the mixing chamber.

[0013] By employing the above technical solution, the mixing chamber achieves material mixing through its gradually narrowing inner diameter. After entering through the feed inlet, the material propels itself through the chamber, and the decreasing space increases friction and collision between materials, thereby improving mixing efficiency.

[0014] As a preferred embodiment, the outer edge contour of each set of mixing blades is adapted to the inner wall contour of the mixing cavity.

[0015] By adopting the above technical solution, the gap between the mixing blade and the inner wall of the mixing chamber is kept consistent.

[0016] As a preferred embodiment, the drive assembly includes a first bearing housing disposed on one side of the rotating shaft, a second bearing housing disposed on the other side of the rotating shaft, a drive motor that is drively connected to one end of the rotating shaft, and a second support frame for supporting the drive motor and fixedly connected to the mixing chamber; the first bearing housing is fixedly connected to the second support frame, and the second bearing housing is fixedly connected to the first support frame.

[0017] By adopting the above technical solution, the first and second bearing seats support the two ends of the rotating shaft respectively, ensuring smooth rotation of the shaft. The first bearing seat is fixedly connected to the second support frame, and the second bearing seat is fixed through the first support frame, which effectively reduces radial and axial friction during rotation. The drive motor is connected to one end of the rotating shaft, converting electrical energy into kinetic energy to drive the stirring mechanism to operate at high speed, thereby enabling the materials inside the mixing chamber to be mixed quickly and evenly. The second support frame not only supports the drive motor but is also firmly connected to the mixing chamber, ensuring the stability and reliability of the overall structure.

[0018] As a preferred embodiment, the retaining member includes rotating rings respectively fixedly sleeved on both sides of the mixing cylinder, rotating bosses fixedly disposed on the outer circular surface of the rotating rings, rollers rollingly engaged with the outer circumference of the rotating bosses, and connecting shafts connected to the rollers. The roller is mounted on the mixing tank via a connecting shaft, and a ball bearing is provided at the connection between the connecting shaft and the roller; The roller is a double-sided roller, and the outer wall of the rotating boss abuts against the rims on both sides of the roller.

[0019] By adopting the above technical solution, the rotating ring is fixedly sleeved on both sides of the mixing cylinder, providing support and positioning. The rotating boss is fixedly set on the outer circumference of the rotating ring, playing a further role in precise positioning. The roller is mounted on the mixing chamber through a connecting shaft, and ball bearings reduce friction, ensuring smooth movement. The ball bearing at the connection between the connecting shaft and the roller enhances the smoothness and durability of rotation. The roller is designed for double-sided rolling, which can evenly distribute pressure and ensure close contact with the outer wall of the rotating boss, preventing slippage. In terms of working principle, the rotating ring and rotating boss are stationary, while the roller rolls between them, achieving smooth rotation through the connecting shaft and ball bearings. This design effectively fixes the movement of the mixing cylinder, improving the stability and safety of equipment operation.

[0020] As a preferred embodiment, a discharge valve is provided at the discharge port, and the discharge valve is either a pneumatic butterfly valve or a solenoid valve.

[0021] By adopting the above technical solution, the discharge speed and discharge volume can be precisely controlled, facilitating connection with subsequent conveying equipment.

[0022] In summary, this application includes the following beneficial technical effects: 1. By designing the mixing chamber as a conical structure with decreasing diameters in the conveying direction and integrating a screening chamber at the end, the three processes of mixing, conveying, and screening can be completed continuously in one piece of equipment, which significantly improves construction efficiency and ensures the quality of the mixture.

[0023] 2. The conical mixing chamber, working in conjunction with the mixing blades fixed to its inner wall, not only achieves thorough shearing and mixing of the materials, but also exerts a squeezing and grinding effect on the materials as the mixing chamber narrows, effectively breaking up lumps. The screening chamber is set up before the discharge to filter the material, preventing unevenly mixed lumps or impurities from entering the next stage.

[0024] 3. The cooperation between the double-sided rolling wheels and the rotating boss effectively restricts the axial and radial movement of the mixing cylinder during rotation, greatly improving the stability and reliability of the equipment operation and extending its service life.

[0025] 4. The drive assembly is completely independent of the mixing tank. In case of failure, it can be repaired or replaced without opening or disassembling the mixing tank, greatly reducing maintenance difficulty and cost. The sealed bushing design also effectively prevents mud from entering the rotating parts.

[0026] 5. By installing a discharge valve at the discharge port, the discharge speed and discharge volume can be precisely controlled, and it is convenient to connect with subsequent conveying equipment. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of a mixing device for the construction of silt soil solidification agent according to this application; Figure 2 This application relates to a mixing device for the application of silt soil solidification agent. Figure 1 Another structural diagram from a different perspective; Figure 3 This application relates to a mixing device for the application of silt soil solidification agent. Figure 2 A schematic diagram of the structure of point A (enlarged view); Figure 4 This is a partial half-sectional view of the mixing cylinder in a mixing device for applying silt soil stabilizer, as described in this application. Figure 5 This application relates to a mixing device for the application of silt soil solidification agent. Figure 4 A structural schematic diagram of the front view.

[0028] Explanation of reference numerals in the attached drawings: 100, mixing chamber; 101, frame; 102, observation window; 103, discharge port; 200, mixing cylinder; 201, mixing chamber; 2011, filter hole; 20111, brush; 1, feed plate; 11, first support frame; 31, rotating shaft; 32, connecting plate; 331, first bearing seat; 332, second bearing seat; 4, drive motor; 41, second support frame; 51, rotating ring; 511, rotating boss; 61, roller; 611, connecting shaft. Detailed Implementation

[0029] The present application will be further described in detail below with reference to the accompanying drawings.

[0030] Please refer to the details. Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 This application discloses a mixing device for the construction of silt soil solidification agent. The mixing device includes a frame 101, a mixing box 100, a mixing cylinder 200, a feed plate 1, a first support frame 11, a discharge port 103, a rotating mechanism, and a retaining element.

[0031] Please refer to details. Figure 1 , Figure 2 , Figure 4 and Figure 5 The mixing chamber 100 is welded to the frame 101 and is made of carbon steel plate. It can be lined with wear-resistant plates. An observation window 102 is provided on the front panel of the mixing chamber 100. The observation window 102 is inlaid with a transparent polycarbonate sheet, allowing operators to observe the internal mixing process in real time. A discharge port 103 is provided on one side of the lower end face of the mixing chamber 100. A pneumatic butterfly valve is installed at the discharge port 103 as a discharge valve to control the opening and closing of the discharge and the flow rate.

[0032] Please refer to the details. Figure 1 and Figure 4 The mixing cylinder 200 is rotatably supported within the mixing chamber 100 by sealing bushings at both ends. The sealing bushings are made of wear-resistant rubber material, which ensures smooth rotation of the mixing cylinder 200 and effectively seals against slurry leakage. One end of the mixing cylinder 200 is a through end, which connects to the feed plate 1; the other end is a closed end.

[0033] Please refer to the details. Figure 1 The feed plate 1 is funnel-shaped, and its lower outlet 103 passes through the mixing box 100 and extends into the through-hole of the mixing cylinder 200. The feed plate 1 is fixedly supported by an L-shaped first support frame 11, the bottom of which is fixedly connected to the bottom plate of the mixing box 100 by bolts.

[0034] Please refer to details. Figure 4 and Figure 5The inner cavity of the mixing cylinder 200 constitutes a mixing chamber 201. The inner diameter of this mixing chamber 201 decreases sequentially along its conveying direction—from one end near the feed plate 1 to the other—forming a truncated conical space. The end of the mixing chamber 201 is designated as a screening chamber, the diameter of which is smaller than the maximum diameter of the mixing chamber 201. Several filter holes 2011 are evenly drilled on the circumferential wall of the screening chamber. The function of the mixing chamber 201 is to achieve material mixing through its gradually decreasing inner diameter. After the material enters from the feed inlet, as it propels within the mixing chamber 201, the gradually decreasing space increases friction and collision between materials, thereby improving mixing efficiency. The screening chamber, located at the outlet end of the mixing chamber 201, has evenly distributed filter holes 2011 to remove small particles or powder that do not meet specifications from the mixed material, thus achieving preliminary screening of the material and ensuring that the final product meets the required purity and size standards. Please refer to [link to details]. Figure 5 To prevent the high viscosity mixture from clogging the filter holes 2011, a brush 20111 is provided on the upper end face of the inner cavity of the mixing chamber 100. The brush 20111 is positioned relative to the filter holes 2011, so that when the mixing cylinder 200 rotates at high speed, the brush 20111 can promptly remove the material adhering to the filter holes 2011, preventing the filter holes 2011 from clogging.

[0035] Please refer to details. Figure 1 , Figure 2 , Figure 4 and Figure 5 The rotating mechanism drives the mixing cylinder 200 to rotate. It includes a rotating shaft 31, at least three sets of mixing blades, and a drive assembly. The axis of the rotating shaft 31 coincides with the axis of the mixing chamber 201, and one end extends out of the closed end of the mixing cylinder 200, with a sealed bearing installed at the connection point with the closed end. Each set of mixing blades consists of four connecting plates 32 evenly distributed circumferentially. One end of each connecting plate 32 is welded to the rotating shaft 31, and the other end is welded to the inner wall of the mixing cylinder 200. Thus, when the rotating shaft 31 rotates, it directly drives the entire mixing cylinder 200 to rotate together through the connecting plates 32. The outer edge contour of the mixing blades is machined into an inclined surface that perfectly matches the contour of the inner wall of the mixing chamber 201.

[0036] Please refer to details. Figure 4 and Figure 5 The drive assembly includes a first bearing housing 331, a second bearing housing 332, a drive motor 4, and a second support frame 41. One end of the rotating shaft 31 is supported on the second support frame 41 via the first bearing housing 331, and the other end is supported on the first support frame 11 via the second bearing housing 332. The drive motor is connected to one end of the rotating shaft 31 via a coupling, and the motor mount of the drive motor 4 is fixedly connected to the second support frame 41, providing power to the entire rotating mechanism. The second support frame 41 is a gantry frame, and its bottom is bolted to the outside of the mixing tank 100.

[0037] Please refer to details. Figure 2 and Figure 3 To ensure the stability of the mixing cylinder 200 during high-speed rotation, a set of retaining components is provided on each side of the mixing cylinder 200. Each set of retaining components includes a rotating ring 51, a rotating boss 511, four rollers 61, and four connecting shafts 611. The rotating ring 51 is fixedly fitted onto the outer circumference of the mixing cylinder 200. The rotating boss 511 is annular and welded to the outer circumference of the rotating ring 51. The four rollers 61 are mounted on the four connecting shafts 611 via ball bearings, and each connecting shaft 611 is fixed to the outer side of the mixing chamber 100. The rollers 61 are double-sided rolling rollers, and their rims abut against the outer side walls of the rotating boss 511, thereby effectively limiting the axial movement and radial runout of the mixing cylinder 200.

[0038] The implementation principle of a mixing device for the construction of silt soil solidification agent according to an embodiment of this application is as follows: The drive motor 4 is started, driving the mixing cylinder to rotate via the rotating shaft 31 and connecting plate 32. The silt to be treated and the solidification agent are continuously fed into the feed plate 1. After entering the rotating mixing cylinder 200, the material is first lifted and scattered by the mixing blades in a spacious area for initial mixing. As the mixing cylinder 200 rotates, the material gradually moves towards the screening chamber under the pushing force of the mixing blades and its own gravity. As the diameter of the mixing chamber 201 gradually decreases, the compressive force on the material gradually increases, effectively breaking up agglomerates, and fully shearing, kneading, and mixing the solidification agent and silt. Finally, the uniformly mixed material with qualified particle size reaches the screening chamber, and under the action of centrifugal force, it is thrown through the filter holes 2011 into the mixing box 100, and slides down the wall of the mixing box 100 to the discharge port 103. The operator can monitor the mixing effect through the observation window 102 and discharge the qualified material by opening the discharge valve. The small amount of large debris that fails to pass the sieve remains in the mixing chamber 201 and is further crushed.

[0039] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A mixing device for applying a silt soil stabilizer, comprising a frame (101), a mixing chamber (100) connected to the frame (101), an observation window (102) disposed on one side of the mixing chamber (100), a discharge port (103) disposed on one side of the lower end face of the mixing chamber (100), a mixing cylinder (200) rotatably disposed within the mixing chamber (100), a rotating mechanism for rotating the mixing cylinder (200), a feed plate (1) penetrating the mixing chamber (100) and communicating with the mixing cylinder (200), and a first support frame (11) for supporting the feed plate (1) and fixedly connected to the mixing chamber (100), wherein one end of the mixing cylinder (200) relative to the feed plate (1) is configured as a through end and the other side is configured as a closed end, and sealing bushings are respectively provided at the connection points between the two ends of the mixing cylinder (200) and the mixing chamber (100), characterized in that: The mixing cylinder (200) has a mixing chamber (201) inside. The inner diameter of the mixing chamber (201) decreases from the end furthest from the feed plate (1) to the other end. The end of the mixing chamber (201) opposite to the discharge port (103) is set as a screening chamber. Filter holes (2011) are uniformly arranged on the screening chamber. The rotating mechanism includes a rotating shaft (31) arranged parallel to the axis of the mixing chamber (201), several sets of mixing blades evenly arranged on the outer periphery of the rotating shaft (31), and a driving assembly for driving the rotating shaft (31); each set of mixing blades includes a connecting plate (32) evenly arranged on the outer periphery of the rotating shaft (31), and the other end of the connecting plate (32) is fixedly connected to the inner wall of the mixing cylinder (200). It also includes retaining members for maintaining the rotational stability of the mixing cylinder (200), the retaining members being disposed on both sides of the mixing cylinder (200).

2. The mixing device for applying a silt soil solidification agent according to claim 1, characterized in that: The inner diameter of the screening chamber is smaller than the maximum inner diameter of the mixing chamber (201).

3. A mixing device for applying a silt soil solidification agent according to claim 2, characterized in that: The outer edge profile of each set of mixing blades is adapted to the inner wall profile of the mixing cavity (201).

4. A mixing device for applying a silt soil solidification agent according to claim 3, characterized in that: The drive assembly includes a first bearing seat (331) disposed on one side of the rotating shaft (31), a second bearing seat (332) disposed on the other side of the rotating shaft (31), a drive motor (4) that is connected to one end of the rotating shaft (31) in a transmission manner, and a second support frame (41) for supporting the drive motor (4) and fixedly connected to the mixing box (100). The first bearing housing (331) is fixedly connected to the second support frame (41), and the second bearing housing (332) is fixedly connected to the first support frame (11).

5. A mixing device for applying a silt soil solidification agent according to claim 4, characterized in that: The retaining member includes a rotating ring (51) fixedly sleeved on both sides of the mixing cylinder (200), a rotating boss (511) fixedly disposed on the outer circular surface of the rotating ring (51), a roller (61) rollingly engaged with the outer circumference of the rotating boss (511), and a connecting shaft (611) connected to the roller (61).

6. A mixing device for applying a silt soil stabilizer according to claim 5, characterized in that: The roller (61) is mounted on the mixing box (100) via a connecting shaft (611), and a ball bearing is provided at the connection between the connecting shaft (611) and the roller (61).

7. A mixing device for applying a silt soil solidification agent according to claim 6, characterized in that: The roller (61) is a double-sided roller, and the outer wall of the rotating boss (511) abuts against the wheel rims on both sides of the roller (61).

8. A mixing device for applying a silt soil solidification agent according to claim 7, characterized in that: A discharge valve is provided at the discharge port (103), and the discharge valve is either a pneumatic butterfly valve or a solenoid valve.

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