A double-helix soil remediation mixing device

Abstract

This utility model discloses a double-helix soil remediation mixing device, including a mixing shell, a mixing tube disposed inside the mixing shell, a mixing assembly disposed on the mixing tube, connecting rods disposed at both ends of the mixing tube, a support assembly disposed on the connecting rod, the support assembly being connected to the side of the mixing shell, a mounting sleeve disposed on one set of the connecting rods, and a drive servo motor being connected to the other set of the connecting rods, a conveying pipe disposed on the mounting sleeve, the conveying pipe being disposed through the connecting rod, and the conveying pipe extending into the inner cavity of the mixing tube; the beneficial effect of this utility model is that by setting a conveying pipe through the connecting rod to introduce cooling fluid into the inner cavity of the mixing tube, the mixing tube is in full contact with the material during rotation, achieving efficient synergy between mixing operation and cooling treatment, effectively avoiding the problem of material temperature rise due to mixing friction in traditional equipment, which affects the activity of remediation agents or the physicochemical properties of soil.

Description

Technical Field

[0001] This utility model relates to a double-helix soil remediation mixing device. Background Technology

[0002] With the increasing severity of environmental pollution, soil remediation technology has become an important research direction in the field of ecological governance. In soil remediation projects, the mixing device, as the core equipment for mixing pollutants and remediation agents, directly affects the remediation reaction effect due to its mixing efficiency and temperature control performance.

[0003] Traditional soil remediation mixing equipment generates frictional heat during mechanical mixing, which can easily lead to an increase in the temperature of the material system. High temperature environment can significantly reduce the activity of microbial remediation agents or cause premature decomposition of chemical remediation agents, thus affecting the quality of remediation. In view of this, this utility model proposes a double helix soil remediation mixing device to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a double-helix soil remediation mixing device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A double-helix soil remediation mixing device includes a mixing shell, and a mixing tube is provided inside the mixing shell;

[0007] The stirring tube is equipped with a stirring assembly, and connecting rods are provided at both ends of the stirring tube. Support assemblies are provided on the connecting rods, and the support assemblies are connected to the side of the stirring shell. One set of connecting rods is equipped with an mounting sleeve, and the other set of connecting rods is connected to a drive servo motor. A conveying pipe is provided on the mounting sleeve. The conveying pipe passes through the connecting rod and extends into the inner cavity of the stirring tube, so that cooling fluid enters the inner cavity of the stirring tube to cool the material inside the stirring shell.

[0008] As an improvement to the above technical solution, the stirring assembly includes two sets of first stirring spirals with opposite thread directions. A first fixing rod is provided on the first stirring spiral, and the first fixing rod is connected to the stirring tube.

[0009] As an improvement to the above technical solution, the two sets of stirring components further include two sets of second stirring spirals, the threads of the two sets of second stirring spirals are opposite, and a second fixing rod is provided on the second stirring spiral, the second fixing rod being connected to the stirring tube;

[0010] The diameter of the first stirring spiral is larger than the diameter of the second stirring spiral.

[0011] As an improvement to the above technical solution, the support assembly includes a support plate, which is connected to the side wall of the stirring shell;

[0012] The support plate is equipped with a support bearing, and the connecting rod is disposed within the support bearing, allowing the connecting rod to rotate on the support plate.

[0013] As an improvement to the above technical solution, a supporting circular plate is provided on the connecting rod, and stirring flanges are provided at both ends of the stirring tube. The stirring flanges are connected to the supporting circular plate by bolts.

[0014] As an improvement to the above technical solution, multiple sets of water outlet cavities are provided inside the conveying pipe. The multiple sets of water outlet cavities are arranged in a circular array around the axis of the conveying pipe. Multiple sets of connecting grooves are provided on the water outlet cavities. The multiple sets of connecting grooves are matched with the multiple sets of water outlet cavities in position, and the connecting grooves are connected to the water outlet cavities.

[0015] As an improvement to the above technical solution, an annular groove is provided inside the mounting sleeve, and the annular groove is matched with the positions of multiple sets of water outlet chambers;

[0016] The conveying pipeline is equipped with a water outlet pipe, which is connected to the annular groove, so that the cooling fluid is sequentially discharged from the water outlet pipe through the connecting groove, the water outlet cavity, and the annular groove.

[0017] As an improvement to the above technical solution, a connecting sleeve is provided on the mounting sleeve, and the connecting sleeve is rotatably mounted on the connecting rod;

[0018] The mounting sleeve is provided with a first fixing sleeve, and the connecting sleeve is provided with a second fixing sleeve. The second fixing sleeve is disposed inside the first fixing sleeve, and the first fixing sleeve and the second fixing sleeve are connected by bolts.

[0019] As an improvement to the above technical solution, two sets of reinforcing plates are symmetrically arranged on the connecting sleeve. The reinforcing plates are connected to the side wall of the mixing shell, so that the connecting sleeve and the mounting sleeve are rotatably mounted on the connecting rod.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] By setting up a conveying pipe that passes through the connecting rod, the cooling fluid is introduced into the inner cavity of the mixing tube, so that the mixing tube can fully contact the material during rotation. This achieves efficient coordination between mixing and cooling, effectively avoiding the problem of material temperature rise due to mixing friction in traditional equipment, which affects the activity of the remediation agent or the physicochemical properties of the soil.

[0022] By creating a dynamic heat exchange interface through the continuous relative motion between the stirring tube and the material, the heat generated during the stirring process is quickly removed, maintaining the material system within the optimal reaction temperature range. This improves the stability and treatment effect of the soil remediation reaction. At the same time, by integrating the cooling system inside the stirring tube, the space occupied by external cooling devices is avoided. Furthermore, the forced convection effect generated by the rotation of the stirring tube itself significantly improves the heat exchange efficiency of the cooling medium, achieving the technical effect of energy saving and consumption reduction. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the structure of the stirring assembly of this utility model;

[0025] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A;

[0026] Figure 4 This is a schematic diagram of the structure of the stirring tube of this utility model;

[0027] Figure 5 This is a schematic diagram showing the positions of the mounting sleeve and the conveying pipeline of this utility model;

[0028] Figure 6 This is a schematic diagram of the connecting sleeve of this utility model;

[0029] Figure 7 This utility model Figure 5 Front view;

[0030] Figure 8 This utility model Figure 7 A cross-sectional view of BB;

[0031] Figure 9 This is a cross-sectional view of the mounting sleeve of this utility model.

[0032] In the diagram: 10. Mixing shell; 11. Connecting rod; 12. Supporting circular plate; 20. Mixing assembly; 21. First fixing rod; 22. First mixing spiral; 23. Second fixing rod; 24. Second mixing spiral; 30. Drive servo motor; 40. Mixing tube; 41. Mixing flange; 50. Support assembly; 51. Support plate; 52. Support bearing; 60. Mounting sleeve; 61. Conveying pipe; 62. Connecting sleeve; 63. Reinforcing plate; 64. Water outlet pipe; 65. Annular groove; 66. Water outlet cavity; 67. First fixing sleeve; 68. Second fixing sleeve; 69. Connecting groove. Detailed Implementation

[0033] 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.

[0034] Example:

[0035] like Figure 1-9 As shown, this embodiment proposes a double-helix soil remediation mixing device, including a mixing shell 10, and a mixing tube 40 is provided inside the mixing shell 10;

[0036] A stirring assembly 20 is provided on the stirring tube 40. Connecting rods 11 are provided at both ends of the stirring tube 40. Supporting assemblies 50 are provided on the connecting rods 11. The supporting assemblies 50 are connected to the side of the stirring shell 10. A mounting sleeve 60 is provided on one set of the connecting rods 11, and the other set of the connecting rods 11 is connected to the drive servo motor 30. A conveying pipe 61 is provided on the mounting sleeve 60. The conveying pipe 61 passes through the connecting rods 11 and extends into the inner cavity of the stirring tube 40, so that cooling fluid enters the inner cavity of the stirring tube 40 to cool the material in the stirring shell 10.

[0037] In this embodiment, when mixing the materials for soil remediation, the materials are introduced into the mixing shell 10, and cooling fluid is introduced into the conveying pipe 61, so that the cooling fluid enters the inner cavity of the mixing tube 40. The mixing tube 40 is placed in the mixing shell 10, so that the mixing tube 40 comes into contact with the materials. Then, cooling fluid is continuously input into the mixing tube 40, and the servo motor 30 drives the connecting rod 11 to rotate, so that the mixing tube 40 rotates inside the mixing shell 10. During the mixing process of the mixing component 20, the mixing tube 40 simultaneously cools the materials.

[0038] By setting a conveying pipe 61 that passes through the connecting rod 11, the cooling fluid is introduced into the inner cavity of the stirring tube 40, so that the stirring tube 40 can fully contact the material during the rotation process. This achieves efficient coordination between stirring and cooling, and effectively avoids the problem that the material temperature rises due to stirring friction in traditional equipment, which affects the activity of the remediation agent or the physicochemical properties of the soil.

[0039] By continuously moving the stirring tube 40 relative to the material, a dynamic heat exchange interface is constructed, which quickly removes the heat generated during stirring and maintains the material system in the optimal reaction temperature range, thereby improving the stability and treatment effect of the soil remediation reaction. At the same time, by integrating the cooling system inside the stirring tube 40, the space occupied by the external cooling device is avoided. Furthermore, by utilizing the forced convection effect generated by the rotation of the stirring tube 40 itself, the heat exchange efficiency of the cooling medium is significantly improved, achieving the technical effect of energy saving and consumption reduction.

[0040] Specifically, the stirring assembly 20 includes two sets of first stirring spirals 22 with opposite thread directions. A first fixing rod 21 is provided on the first stirring spiral 22, and the first fixing rod 21 is connected to the stirring tube 40.

[0041] In this embodiment, two sets of first stirring spirals 22 with opposite thread directions form a reverse material flow path when rotating. Through the forward and reverse thrust of the blades of the first stirring spiral 22, the soil and remediation agent are forced to flow in both directions within the mixing shell 10, eliminating the difference in motion inertia between material layers, effectively breaking the mixing dead zone, and significantly improving the microscopic dispersion uniformity and macroscopic mixing efficiency of the pollutant and the agent.

[0042] Specifically, the two sets of stirring components 20 further include two sets of second stirring spirals 24, the two sets of second stirring spirals 24 have opposite thread directions, and the second stirring spirals 24 are provided with second fixing rods 23, which are connected to the stirring tube 40;

[0043] The diameter of the first stirring spiral 22 is larger than the diameter of the second stirring spiral 24.

[0044] In this embodiment, a stepped mixing structure is formed by setting a first stirring spiral 22 and a second stirring spiral 24 with different diameters. The large-diameter first stirring spiral 22 dominates the macroscopic material conveying and primary crushing, while the small-diameter second stirring spiral 24 enhances the secondary dispersion of microscopic fine-grained materials, constructing a multi-level shear gradient field to achieve the step-by-step deagglomeration of contaminated soil particles from coarse to fine, and significantly improves the interfacial reaction activity between remediation agents and pollutants.

[0045] Specifically, the support assembly 50 includes a support plate 51, which is connected to the side wall of the stirring shell 10;

[0046] The support plate 51 is provided with a support bearing 52, and the connecting rod 11 is provided in the support bearing 52, so that the connecting rod 11 is rotatably mounted on the support plate 51.

[0047] In this embodiment, the support plate 51 is rigidly connected to the side wall of the stirring shell 10 to form a closed bearing frame. The radial constraint and axial positioning of the connecting rod 11 by the support bearing 52 are used to construct a high-precision rotary support, which effectively suppresses the centrifugal vibration and radial off-center load generated when the stirring tube 40 rotates at high speed, and ensures the stability and coaxiality of the power transmission path.

[0048] Specifically, a supporting circular plate 12 is provided on the connecting rod 11, and stirring flanges 41 are provided at both ends of the stirring tube 40. The stirring flanges 41 and the supporting circular plate 12 are connected by bolts.

[0049] In this embodiment, a standardized docking interface is formed by bolting the stirring flange 41 and the supporting circular plate 12, which enables quick assembly and disassembly of the stirring pipe 40 and the connecting rod 11, reducing downtime for component replacement or cleaning operations, while avoiding destructive disassembly problems caused by traditional welding or interference fit.

[0050] Specifically, the conveying pipe 61 has multiple sets of water outlet chambers 66, which are arranged in a circular array around the axis of the conveying pipe 61. Each water outlet chamber 66 has multiple sets of connecting grooves 69, which are matched with the positions of the multiple sets of water outlet chambers 66, and the connecting grooves 69 are connected to the water outlet chambers 66.

[0051] Specifically, the mounting sleeve 60 is provided with an annular groove 65, which is matched with the positions of multiple sets of water outlet chambers 66;

[0052] The conveying pipe 61 is provided with a water outlet pipe 64, which is connected to the annular groove 65, so that the cooling fluid is discharged from the water outlet pipe 64 through the connecting groove 69, the water outlet cavity 66, and the annular groove 65 in sequence.

[0053] In this embodiment, the conveying pipe 61 is connected to an external water pump to introduce cooling fluid into the inner cavity of the stirring pipe 40. Then, the cooling fluid is discharged from the water outlet pipe 64 through the connecting groove 69, the water outlet cavity 66, and the annular groove 65 in sequence, forming a circulating cooling flow channel. This can effectively ensure that the material system cools down quickly and stably under high temperature stirring conditions and maintain the thermal balance of the repair reaction.

[0054] Specifically, the mounting sleeve 60 is provided with a connecting sleeve 62, which is rotatably mounted on the connecting rod 11;

[0055] The mounting sleeve 60 is provided with a first fixing sleeve 67, and the connecting sleeve 62 is provided with a second fixing sleeve 68. The second fixing sleeve 68 is disposed inside the first fixing sleeve 67, and the first fixing sleeve 67 and the second fixing sleeve 68 are connected by bolts.

[0056] In this embodiment, the nested design of the first fixing sleeve 67 and the second fixing sleeve 68, combined with the axial preload of the bolt connection, forms a high-precision coaxial positioning interface, enabling the rapid alignment and assembly of the mounting sleeve 60 and the connecting sleeve 62. This eliminates the installation misalignment problem caused by machining errors in traditional integral sleeves, reducing the complexity of the assembly process and the time cost.

[0057] Specifically, two sets of reinforcing plates 63 are symmetrically arranged on the connecting sleeve 62. The reinforcing plates 63 are connected to the side wall of the stirring shell 10, so that the connecting sleeve 62 and the mounting sleeve 60 are rotatably mounted on the connecting rod 11.

[0058] In this embodiment, two sets of symmetrically arranged reinforcing plates 63 form a double-point rigid connection with the side wall of the mixing shell 10, and an equal-strength load-bearing frame is constructed in the circumference of the connecting sleeve 62 to eliminate the eccentric deformation of the rotating parts caused by unilateral force, ensure the coaxiality accuracy of the mounting sleeve 60 and the connecting rod 11, and improve the dynamic stability under high-speed mixing conditions.

[0059] 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 double-helix soil remediation mixing device, characterized in that: Includes a stirring shell (10), and a stirring tube (40) is provided inside the stirring shell (10). A stirring assembly (20) is provided on the stirring tube (40). Connecting rods (11) are provided at both ends of the stirring tube (40). A support assembly (50) is provided on the connecting rod (11). The support assembly (50) is connected to the side of the stirring shell (10). A set of connecting rods (11) is provided with an installation sleeve (60). Another set of connecting rods (11) is connected to a drive servo motor (30). A conveying pipe (61) is provided on the installation sleeve (60). The conveying pipe (61) passes through the connecting rod (11). The conveying pipe (61) extends into the inner cavity of the stirring tube (40), so that cooling fluid enters the inner cavity of the stirring tube (40) to cool the material in the stirring shell (10).

2. The double-helix soil remediation mixing device according to claim 1, characterized in that: The stirring assembly (20) includes two sets of first stirring spirals (22), the two sets of first stirring spirals (22) have opposite thread directions, and a first fixing rod (21) is provided on the first stirring spiral (22), the first fixing rod (21) is connected to the stirring tube (40).

3. The double-helix soil remediation mixing device according to claim 2, characterized in that: The two sets of stirring components (20) further include two sets of second stirring spirals (24), the threads of the two sets of second stirring spirals (24) are opposite, and a second fixing rod (23) is provided on the second stirring spiral (24), the second fixing rod (23) is connected to the stirring tube (40); The diameter of the first stirring spiral (22) is greater than the diameter of the second stirring spiral (24).

4. The double-helix soil remediation mixing device according to claim 1, characterized in that: The support assembly (50) includes a support plate (51) which is connected to the side wall of the stirring shell (10); The support plate (51) is provided with a support bearing (52), and the connecting rod (11) is provided in the support bearing (52), so that the connecting rod (11) is rotatably mounted on the support plate (51).

5. The double-helix soil remediation mixing device according to claim 4, characterized in that: The connecting rod (11) is provided with a supporting circular plate (12), and the two ends of the stirring tube (40) are provided with stirring flanges (41). The stirring flanges (41) and the supporting circular plate (12) are connected by bolts.

6. The double-helix soil remediation mixing device according to claim 1, characterized in that: The conveying pipe (61) has multiple sets of water outlet chambers (66) arranged in a ring array around the axis of the conveying pipe (61). Multiple sets of connecting grooves (69) are provided on the water outlet chambers (66), and the multiple sets of connecting grooves (69) are matched with the multiple sets of water outlet chambers (66) in position. The connecting grooves (69) are connected to the water outlet chambers (66).

7. The double-helix soil remediation mixing device according to claim 6, characterized in that: The mounting sleeve (60) is provided with an annular groove (65), which is matched with the positions of multiple sets of water outlet chambers (66); The conveying pipe (61) is provided with a water outlet pipe (64), which is connected to the annular groove (65) so that the cooling fluid is discharged from the water outlet pipe (64) in sequence through the connecting groove (69), the water outlet cavity (66), and the annular groove (65).

8. The double-helix soil remediation mixing device according to claim 1, characterized in that: A connecting sleeve (62) is provided on the mounting sleeve (60), and the connecting sleeve (62) is rotatably mounted on the connecting rod (11); The mounting sleeve (60) is provided with a first fixing sleeve (67), and the connecting sleeve (62) is provided with a second fixing sleeve (68). The second fixing sleeve (68) is disposed inside the first fixing sleeve (67), and the first fixing sleeve (67) and the second fixing sleeve (68) are connected by bolts.

9. A double-helix soil remediation mixing device according to claim 8, characterized in that: Two sets of reinforcing plates (63) are symmetrically arranged on the connecting sleeve (62). The reinforcing plates (63) are connected to the side wall of the stirring shell (10), so that the connecting sleeve (62) and the mounting sleeve (60) are rotatably mounted on the connecting rod (11).

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