A flexible stirring mechanism and continuous rotary mixing device

Abstract

The utility model relates to the field of construction slag, sludge treatment, specifically relates to a kind of flexible mixing mechanism, including main shaft and flexible blade, flexible blade is set on main shaft, and flexible blade includes chain segment and blade segment, chain segment one end is fixedly connected with main shaft, and other end is connected with the one end of blade segment.The utility model further provides a kind of continuous rotary mixing equipment including above-mentioned flexible mixing mechanism, including rack, cylinder, flexible mixing mechanism, gyro wheel subassembly and continuous feed inlet, cylinder is set on rack, and cylinder includes upper cylinder, rotating cylinder and lower cylinder, and upper cylinder is equipped with continuous feed inlet, and rotating cylinder is set between upper cylinder and lower cylinder by gyro wheel subassembly, and flexible mixing mechanism is set in cylinder center.Material is discharged after entering cylinder interior from continuous feed inlet and being broken and mixed, and flexible blade on high-speed rotation of main shaft impacts material, reaches the effect of broken and mixed, and can manufacture modified product with adjustable particle size and strength.

Description

Technical Field

[0001] This utility model relates to the field of construction waste and sludge treatment, specifically to a flexible mixing mechanism. In addition, this utility model also relates to a continuous rotary mixing equipment including the above-mentioned flexible mixing mechanism. Background Technology

[0002] To address the issue of handling large quantities of abandoned construction waste both domestically and internationally, traditional mixing equipment relies on shearing and agitation forces to crush materials and reuse waste construction waste and sludge. However, when dealing with high-hardness or high-viscosity lumps, their blade design is insufficient to fully break down the lumps, leaving the interior of the lumps unexposed and preventing the pollutants from fully contacting the reagents. Therefore, traditional mixing equipment generally suffers from low treatment efficiency and unstable remediation effects for soil contaminated with lumps.

[0003] Therefore, there is an urgent need for a flexible mixing mechanism that is highly efficient and capable of fully breaking up lumps, as well as a continuous rotary mixing equipment including the aforementioned flexible mixing mechanism. Utility Model Content

[0004] To overcome the shortcomings of the prior art, this utility model provides a flexible stirring mechanism and a continuous rotary mixing equipment including the above-mentioned flexible stirring mechanism.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A flexible stirring mechanism includes a main shaft and flexible blades. The flexible blades are disposed on the outer wall of the main shaft. The flexible blades include a chain segment and a blade segment. One end of the chain segment is fixed to the main shaft, and the other end of the chain segment is connected to one end of the blade segment.

[0006] Furthermore, it also includes a blade fixing assembly, which is fixedly connected to the flexible blade and movably connected to the main shaft.

[0007] Furthermore, the blade fixing assembly includes a fixed flange, a movable flange, a lead screw, and fasteners. The fixed flange is fixedly connected to the upper and lower ends of the main shaft. The two ends of the lead screw are respectively connected to the fixed flange. The movable flange passes through the main shaft and the lead screw and is arranged between the two fixed flanges. It can move along the main shaft and the lead screw axially. The fasteners are set on the lead screw to lock the movable flange. The chain segment of the flexible blade is fixed to the lead screw between the movable flanges.

[0008] Furthermore, the fasteners include a nut mounted on the lead screw and a movable flange for adjusting its position on the spindle via the nut on the lead screw.

[0009] Furthermore, there are multiple movable flanges, and flexible blades are arranged between the multiple movable flanges, distributed in multiple layers on the main shaft.

[0010] Furthermore, an inclination angle is set between adjacent layers of the flexible blades, so that the flexible blades are staggered.

[0011] Furthermore, the blade fixing assembly also includes a latch, which is a C-shaped structure with an opening on one side. The flexible blade is connected to the movable flange via the latch and the lead screw.

[0012] Furthermore, the blade segment is made of cemented carbide with a cutting edge to extend the replacement cycle due to wear.

[0013] Meanwhile, this utility model also provides a continuous rotary mixing device, including a frame and a cylinder. The cylinder is set on the frame and also includes a flexible stirring mechanism, a roller assembly and a continuous feed inlet. The cylinder includes an upper cylinder, a rotating cylinder and a lower cylinder. The upper cylinder is provided with a continuous feed inlet. The rotating cylinder is set between the upper cylinder and the lower cylinder through the roller assembly. The flexible stirring mechanism is the flexible stirring mechanism described above and is set at the center of the cylinder.

[0014] Furthermore, it also includes mounting components that fix both ends of the flexible mixing mechanism to the upper and lower cylinders.

[0015] Furthermore, it also includes a continuous feeder, which is opened along the side wall of the top surface of the upper cylinder through a continuous feed port. The continuous feeder has a bucket-shaped structure, and a bottom hole adapted to the continuous feed port is opened at the lower end of the continuous feeder. The bottom hole has the same diameter as the continuous feed port.

[0016] Furthermore, it also includes a scraping assembly, which is fixedly installed inside the rotating cylinder. One end of the scraping assembly is fixedly connected to the inner wall of the upper cylinder, and the other end is fixedly connected to the inner wall of the lower cylinder, reducing the adhesion of high moisture content materials to the inner wall. The scraping assembly slides and fits against the inner wall of the rotating cylinder, avoiding interference when the rotating cylinder rotates.

[0017] Furthermore, the roller assembly includes axial rollers and radial rollers, which position and support the rotating cylinder to assist its rotation.

[0018] Furthermore, the continuous rotary mixing equipment also includes belt drive components and gear drive components.

[0019] Furthermore, the belt drive assembly includes a belt and a variable frequency motor. The variable frequency motor is connected to the flexible stirring mechanism via the belt. The variable frequency motor speed control controls the main shaft speed. By controlling the motor speed through frequency conversion, the rotational shaft speed is controlled. Different speed configurations can be used to adapt to the processing of different raw materials, thereby achieving the effect of adjusting the particle size distribution of the product and meeting the customer's needs for different particle sizes.

[0020] Furthermore, the gear transmission assembly includes a pinion, a large gear, and a geared motor. The geared motor and the pinion are mounted on the frame, while the large gear is fixedly connected to the outer wall of the rotating cylinder. The geared motor drives the pinion to drive the large gear, which meshes with the pinion, thus rotating the cylinder.

[0021] Furthermore, it also includes a baffle assembly, an upper cylinder, a rotating cylinder, and a lower cylinder. There is a gap between the three cylinders. The baffle assembly is fixed to the outer wall of the upper and lower cylinders to form a sealing structure and activate the sealing function.

[0022] Furthermore, it also includes a protective cover. This cover is positioned above the belt drive assembly to protect components and prevent rotating parts from causing injury to personnel.

[0023] Furthermore, it also includes an inspection door, which is located on the upper surface of the upper cylinder for easy daily inspection and maintenance.

[0024] Furthermore, it also includes wear-resistant liners, which are installed on the inner walls of the upper cylinder, lower cylinder and rotating cylinder to increase the service life of the equipment.

[0025] Furthermore, raw materials and processed products can be transported by belt conveyors or other material conveying devices and stacked in the stockyard to facilitate material flow.

[0026] As described in the utility model description, the flexible mixing mechanism provided by this utility model uses flexible blades arranged on the main shaft to crush and mix various raw materials. While crushing and granulating, the materials are dispersed to achieve a uniform mixing effect, thus improving high-moisture clay and sandy soil into a stable soil material that is resistant to permeability and erosion.

[0027] Furthermore, the continuous rotary mixing equipment provided by this utility model can be applied to river embankment and roadbed engineering, roadbed engineering for road bodies and subgrades, and the improvement and backfilling of excavated soil for structures. Addressing the problem of clumping in contaminated soil, agents can be added through a continuous feeding device to mix with the contaminated soil raw materials, achieving a highly efficient and continuous improvement treatment effect. Simultaneously, the continuous rotary mixing equipment of this utility model includes an independently rotatable rotating cylinder located between the upper and lower cylinders. During operation, the rotating cylinder and the central flexible mixing mechanism work together to produce compound mixing, ensuring a more uniform mixing effect, effectively preventing localized uneven mixing, and improving the mixing efficiency. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the flexible stirring mechanism of this utility model.

[0029] Figure 2 This is a cross-sectional view of the continuous rotary mixing equipment of this utility model.

[0030] Figure 3 This is a schematic diagram of the continuous rotary mixing equipment of this utility model.

[0031] Figure 4 This is a side view of the continuous rotary mixing equipment of this utility model.

[0032] In the diagram: 1. Main shaft; 2. Flexible blades; 21. Chain segment; 22. Blade segment; 3. Blade fixing assembly; 31. Fixed flange; 32. Movable flange; 33. Lead screw; 34. Fastener; 35. Lock; 4. Frame; 5. Cylinder; 51. Upper cylinder; 52. Rotating cylinder; 53. Lower cylinder; 6. Flexible stirring mechanism; 7. Roller assembly; 71. Axial roller; 72. Radial roller; 8. Continuous feed inlet; 9. Mounting component; 10. Continuous feed component; 11. Scraper assembly; 12. Belt drive assembly; 13. Gear drive assembly; 14. Material stop assembly; 15. Inspection door; 16. Protective cover. Detailed Implementation

[0033] The present invention will be further described below through specific embodiments.

[0034] like Figure 1 As shown, a flexible stirring mechanism includes a main shaft 1 and flexible blades 2. The flexible blades 2 are disposed on the outer wall of the main shaft 1. The flexible blades 2 include a chain segment 21 and a blade segment 22. One end of the chain segment 21 is fixedly connected to the main shaft 1, and the other end is connected to one end of the blade segment 22. The blade segment 22 is made of hard alloy with blades to extend the replacement cycle due to wear.

[0035] The flexible stirring mechanism 6 also includes a blade fixing assembly 3, which is fixedly connected to the flexible blades 2 and movably connected to the main shaft 1. The blade fixing assembly 3 includes a fixed flange 31, a movable flange 32, a lead screw 33, and a fastener 34. The fixed flange 31 is fixedly connected to the upper and lower ends of the main shaft 1. Both ends of the lead screw 34 are connected to the fixed flanges 31 respectively. The movable flange 32 passes through the main shaft 1 and the lead screw 33 and is arranged between the two fixed flanges 31, and can move axially along the main shaft 1 and the lead screw 33. The fastener 34 is provided on the lead screw 33 to lock the movable flange 32. The chain segment of the flexible blades 2 is fixed to the lead screw 34 between the movable flanges 32. The fastener 34 includes a nut provided on the lead screw 33, allowing the movable flange 32 to adjust its position on the main shaft 1 via the nut on the lead screw 33.

[0036] The blade fixing assembly 3 also includes a latch 35, which is a C-shaped structure with an opening on one side. The flexible blade 2 is connected to the movable flange 32 via the latch 35 and the lead screw 33.

[0037] There are multiple flexible blades 2 and multiple movable flanges 32. The flexible blades 2 are arranged between the multiple movable flanges 32 and distributed in multiple layers on the main shaft 1. An inclination angle is set between adjacent layers of flexible blades 2, so that the flexible blades 2 are staggered.

[0038] Specifically, such as Figure 1 As shown, this case has one fixed flange 31 at each of the upper and lower ends of the main shaft 1, which is fastened to the main shaft 1 by locking bolts. There are eight movable flanges 32 in the middle of the main shaft 1. The lead screw 33 passes through the fixed flanges 31 and the movable flanges 32. The installation position of the movable flanges 32 can be adjusted by the nuts on the lead screw 33. The flexible blades 2 are installed on the lead screw 33 and located between adjacent movable flanges 32. The number of movable flanges 32 and flexible blades 2 can be adjusted according to the processing requirements of different raw materials and particle sizes. This case uses four layers of flexible blades 2, with four flexible blades 2 arranged in a staggered manner in each layer.

[0039] like Figures 2 to 4 As shown, this utility model also provides a continuous rotary mixing device, including a frame 4 and a cylinder 5. The cylinder 5 is disposed on the frame 4, and includes a flexible stirring mechanism 6, a roller assembly 7 and a continuous feed inlet 8. The cylinder 5 includes an upper cylinder 51, a rotating cylinder 52 and a lower cylinder 53. The upper cylinder is provided with a continuous feed inlet 8. The rotating cylinder 52 is disposed between the upper cylinder 51 and the lower cylinder 53 through the roller assembly 7. The flexible stirring mechanism 6 is the aforementioned flexible stirring mechanism 6, and the flexible stirring mechanism 6 is disposed at the center of the cylinder 5.

[0040] The equipment also includes mounting components 9, which fix the two ends of the flexible stirring mechanism 6 within the upper cylinder 51 and the lower cylinder 53. Mounting components 9 include an upper bearing seat, a lower bearing seat, an upper bearing, and a lower bearing. The upper and lower bearing seats are respectively disposed within the upper cylinder 51 and the lower cylinder 53, and the upper and lower bearings are located at both ends of the main shaft 1. The lower bearing seat also includes an adjusting screw. The lower bearing seat is mounted within the lower cylinder 53 via the adjusting screw, and its position can be adjusted by adjusting the adjusting screw, thereby adjusting the position of the flexible stirring mechanism 6.

[0041] The equipment also includes a continuous feeder 10, which extends from the continuous feed inlet 8 along the side wall of the top surface of the upper cylinder. The continuous feeder 10 has a bucket-shaped structure, and its lower end has a bottom hole that matches the continuous feed inlet 8, with the same diameter. The continuous feeder 10 facilitates the entry of additives along the side wall of the cylinder 5, thereby making the material and additives more evenly mixed.

[0042] Specifically, such as Figure 3As shown, the equipment also includes a belt drive assembly 12 and a gear drive assembly 13. The belt drive assembly 12 is connected to the main shaft 1, and the gear drive assembly 13 is connected to the rotating cylinder 52. Raw materials such as cohesive soil, sandy soil, soft rock, and additives enter the cylinder 5 through the continuous feed inlet 8. The upper cylinder 51 and the lower cylinder 53 are fixed on the frame 4. The rotating cylinder 52 is positioned axially and radially by three axial rollers 51 and three radial rollers 52. The geared motor drives the rotating cylinder 52 to rotate at a speed of 2 to 15 r / min through gear transmission. During operation, the rotating cylinder 52 works together with the central flexible stirring mechanism 6 to produce compound stirring, ensuring a more uniform mixing effect, effectively preventing the problem of uneven local mixing, and improving the mixing effect.

[0043] The inner wall of the rotating cylinder 52 is equipped with a scraper assembly 11 fixed to the upper cylinder 51 and the lower cylinder 53. The relative movement of the scraper assembly 11 and the rotating cylinder 52 removes the highly moist material adhering to the inner wall. The outer wall of the rotating cylinder 52 is equipped with a baffle assembly 14 to form a sealing structure and achieve dynamic sealing. The baffle assembly 14 is locked and fixed to the upper cylinder 51 and the lower cylinder 53 by rubber baffles and pressure plates. A variable frequency motor drives a flexible stirring mechanism 6 located at the center of the cylinder 5 through belt drive. The speed is variable frequency adjusted according to the requirements of different raw materials and crushing / mixing particle sizes. In this case, a speed range of 500–1500 rpm can be selected, but is not limited to. The flexible stirring mechanism 6 is positioned and installed using bearings at both the top and bottom. The equipment is equipped with a protective cover 16 to protect the moving parts, and an inspection door 15 is provided above the upper cylinder 51 for easy maintenance.

[0044] Figures 1 to 4 The method of using the continuous rotary mixing equipment described in this utility model is as follows: During operation, material enters the upper cylinder 51 through a continuous feed inlet and falls into the rotating cylinder 52. A geared motor drives the rotating cylinder 52 to rotate, and axial and radial rollers support its stable rotation. Simultaneously, a variable frequency motor drives the main shaft 1 to rotate at high speed via a belt. The flexible blades 2 on the main shaft 1 generate a high-frequency impact crushing effect on the material. The movable flange 32 can be adjusted in spacing via a screw 33 to adapt to different material crushing requirements. During rotation, the scraper assembly 11 removes high-moisture material adhering to the inner wall of the cylinder 5, the baffle assembly 14 prevents material overflow, and the wear-resistant liner extends the equipment's lifespan. Under the synergistic action of the rotating cylinder 52 and the main shaft 1, the material completes crushing, mixing, and additive dispersion, and is finally discharged from the lower cylinder 53. By controlling the rotation speed of the main shaft 1 via variable frequency, the particle size distribution of the product can be adjusted to meet the needs of different engineering projects for stabilized soil materials, achieving the improvement of high-moisture clayey soil and sandy soil, as well as the chemical mixing treatment of contaminated soil.

[0045] The above are only some specific embodiments of this utility model, but the design concept of this utility model is not limited thereto. Any non-substantial modifications made to this utility model using this concept shall be considered as an infringement of the protection scope of this utility model.

Claims

1. A flexible stirring mechanism, characterized in that: It includes a main shaft (1) and a flexible blade (2). The flexible blade (2) is disposed on the outer wall of the main shaft (1). The flexible blade (2) includes a chain segment (21) and a blade segment (22). One end of the chain segment (21) is fixed to the main shaft (1), and the other end of the chain segment (21) is connected to one end of the blade segment (22).

2. The flexible stirring mechanism according to claim 1, characterized in that: It also includes a blade fixing assembly (3), which is fixedly connected to the flexible blade (2) and movably connected to the main shaft (1).

3. The flexible stirring mechanism according to claim 2, characterized in that: The blade fixing assembly (3) includes a fixed flange (31), a movable flange (32), a lead screw (33), and a fastener (34). The fixed flange (31) is fixedly connected to the upper and lower ends of the main shaft (1). The two ends of the lead screw (33) are respectively connected to the fixed flange (31). The movable flange (32) passes through the main shaft (1) and the lead screw (33) and is arranged between the two fixed flanges (31). It can move along the main shaft (1) and the axial direction of the lead screw (33). The fastener (34) is set on the lead screw (33) to lock the movable flange (32). The chain segment of the flexible blade (2) is fixed on the lead screw (33) between the movable flanges (32).

4. The flexible stirring mechanism according to claim 3, characterized in that: The fastener (34) includes a nut disposed on the lead screw (33), and the movable flange (32) is used to adjust its position on the spindle (1) by means of the nut on the lead screw (33).

5. The flexible stirring mechanism according to claim 3, characterized in that: There are multiple movable flanges (32), and the flexible blades (2) are disposed between the multiple movable flanges (32) and distributed in multiple layers on the main shaft (1).

6. The flexible stirring mechanism according to claim 5, characterized in that: The flexible blades (2) are tilted at an angle between adjacent layers, so that the flexible blades (2) are staggered.

7. The flexible stirring mechanism according to claim 3, characterized in that: The blade fixing assembly (3) also includes a latch (35), which is a C-shaped structure with an opening on one side. The flexible blade (2) is connected to the movable flange (32) through the latch (35) and the lead screw (33).

8. A continuous rotary mixing device, comprising a frame (4) and a cylinder (5), wherein the cylinder (5) is disposed on the frame (4), characterized in that: It also includes a flexible stirring mechanism (6), a roller assembly (7) and a continuous feed inlet (8). The cylinder (5) includes an upper cylinder (51), a rotating cylinder (52) and a lower cylinder (53). The upper cylinder is provided with a continuous feed inlet (8). The rotating cylinder (52) is disposed between the upper cylinder (51) and the lower cylinder (53) through the roller assembly (7). The flexible stirring mechanism (6) is the flexible stirring mechanism (6) as described in any one of claims 1 to 7. The flexible stirring mechanism (6) is disposed at the center of the cylinder (5).

9. The continuous rotary mixing equipment according to claim 8, characterized in that: It also includes a mounting component (9) that fixes both ends of the flexible stirring mechanism (6) inside the upper cylinder (51) and the lower cylinder (53).

10. The continuous rotary mixing equipment according to claim 8, characterized in that: It also includes a continuous feeder (10), which is opened along the side wall of the top surface of the upper cylinder from the continuous feed port (8). The continuous feeder (10) has a bucket-shaped structure. The bottom end of the continuous feeder (10) is provided with a bottom hole that is adapted to the continuous feed port (8). The bottom hole has the same diameter as the continuous feed port (8).

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