A new type of mixing device for mixing plant

Abstract

The utility model discloses a novel stirring device for mixing station, including the stirring jar, the top of stirring jar is provided with the feed inlet, and the bottom is provided with the discharge gate, and the first stirring shaft is rotatably arranged in the stirring jar, and the first stirring shaft is horizontally arranged, and two second stirring shafts are rotatably arranged in the stirring jar, and the two second stirring shafts are parallel with the first stirring shaft and are respectively located at the two sides of the first stirring shaft. The utility model discloses first stirring shaft and two second stirring shafts, and multiple stirring shafts jointly stir the material in the stirring jar, and compared with single-shaft stirrer, the stirring efficiency is higher. Spiral blade is arranged on the first stirring shaft, and T-shaped blade is arranged on the second stirring shaft, the movement mode of the two kinds of blades is superposed, forms the complex three -dimensional mixing path, reduces the stirring dead angle, and ensures that the material is fully mixed in each direction.

Description

Technical Field

[0001] This utility model relates to the field of mixing equipment technology, and in particular to a novel mixing device for mixing plants. Background Technology

[0002] In a concrete batching plant, the mixing unit is one of the core pieces of equipment, and its performance directly affects the quality of concrete and production efficiency.

[0003] Traditional mixing devices mostly employ a single-shaft mixing method, which typically uses rotating blades to lift materials to a certain height before they fall freely to complete the mixing. This method has significantly lower mixing efficiency. In applications requiring the rapid production of large quantities of concrete or other materials, single-shaft mixers may not meet production demands. Furthermore, for applications requiring highly fine mixing, such as the production of high-performance concrete or materials with special requirements, the mixing uniformity of single-shaft mixers may not be sufficient.

[0004] Therefore, although single-shaft mixers can meet basic mixing needs, they are insufficient in terms of mixing uniformity and mixing efficiency. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides a novel mixing device for mixing plants, which solves the problem that existing single-shaft mixers cannot meet the requirements in terms of mixing uniformity and mixing efficiency.

[0006] This utility model is implemented as follows: A novel mixing device for a mixing plant includes a mixing tank. The mixing tank has a feed inlet at the top and a discharge outlet at the bottom. A first mixing shaft is rotatably arranged inside the mixing tank and is horizontally positioned. Two second mixing shafts are also rotatably arranged inside the mixing tank. The two second mixing shafts are parallel to the first mixing shaft and are located on both sides of the first mixing shaft.

[0007] Furthermore, the first stirring shaft includes a first rotating shaft, and a spiral blade is fixedly provided on the outer side of the first rotating shaft.

[0008] Furthermore, the second stirring shaft includes a second rotating shaft, and a plurality of T-shaped blades are fixedly connected to the outer wall of the second rotating shaft, and the plurality of T-shaped blades are spirally arranged along the outer wall of the second rotating shaft.

[0009] Furthermore, the T-shaped blade includes a blade tip, which is a column with a triangular cross-section, and the bottom of the blade tip is fixedly connected to the outer wall of the second rotating shaft by a rod.

[0010] Furthermore, a drive motor is provided on the outer wall of one end of the mixing tank. The output shaft of the drive motor is fixedly connected to one end of the first rotating shaft. A first gear is fixedly provided on the first rotating shaft, and a second gear is fixedly provided on each of the second rotating shafts. The first gear is meshed with both of the second gears.

[0011] Furthermore, a discharge gate is provided below the discharge port, and the discharge gate opens or closes the discharge port through an opening and closing mechanism.

[0012] Furthermore, the discharge gate includes a discharge plate and a plurality of connecting ribs fixedly disposed at the bottom of the discharge plate, the plurality of connecting ribs being evenly distributed along the length direction of the discharge plate.

[0013] Furthermore, the multiple connecting stiffeners are fixedly connected to each other by a third rotating shaft and a fourth rotating shaft, respectively. The third rotating shaft is located near its middle part, and the fourth rotating shaft is located near one end of it. The two ends of the fourth rotating shaft pass through the bottom of the mixing tank and are rotatably connected to it.

[0014] Furthermore, the opening and closing mechanism includes a telescopic cylinder, which is disposed at the other end of the mixing tank. One end of the telescopic cylinder is rotatably connected to the mixing tank, and the other end is connected to the third rotating shaft through a connecting plate. One end of the connecting plate is hinged to the other end of the telescopic cylinder, and the other end of the connecting plate is fixedly connected to one end of the third rotating shaft.

[0015] Furthermore, the top of the mixing tank is covered with a top cover, and the feed inlet is located in the middle of the top cover.

[0016] The beneficial effects of this utility model are: This invention discloses a novel mixing device for a mixing plant, comprising a first mixing shaft and two second mixing shafts. These multiple shafts work together to mix the material within the mixing tank, resulting in higher mixing efficiency compared to a single-shaft mixer. The helical blades on the first mixing shaft primarily propel the material along the axial direction of the mixing tank, creating an axial circulating flow. The T-shaped blades on the second mixing shafts shear and crush the material, enhancing the uniformity of mixing. The superposition of the two blade movement patterns forms a complex three-dimensional mixing path, reducing dead zones and ensuring thorough mixing of the material in all directions. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of the three-dimensional structure of this utility model with the top cover removed. Figure 1 ; Figure 3 This is a schematic diagram of the three-dimensional structure of this utility model with the top cover removed. Figure 2 ; Figure 4 This is a top view of the present invention with the top cover removed; Figure 5 This is a three-dimensional structural diagram of the discharge gate of this utility model.

[0018] Explanation of reference numerals in the attached figures: 1. Mixing tank; 11. Lifting lug; 12. Top cover; 121. Feed inlet; 13. Support leg; 2. First mixing shaft; 21. First rotating shaft; 22. Spiral blade; 23. First gear; 3. Second mixing shaft; 31. Second rotating shaft; 32. T-shaped blade; 321. Blade tip; 322. Rod body; 33. Second gear; 4. Drive motor; 5. Discharge gate; 51. Discharge plate; 52. Connecting rib plate; 53. Third rotating shaft; 54. Fourth rotating shaft; 6. Opening and closing mechanism; 61. Telescopic cylinder; 62. Connecting plate. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Many specific details are set forth in the following description to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0020] like Figures 1-5 The present invention relates to a novel mixing device for a mixing plant, comprising a mixing tank 1, a feed inlet 121 at the top of the mixing tank 1 and a discharge outlet (not shown in the figure) at the bottom, a first mixing shaft 2 rotatably disposed inside the mixing tank 1, the first mixing shaft 2 being horizontally disposed, and two second mixing shafts 3 rotatably disposed inside the mixing tank 1, the two second mixing shafts 3 being parallel to the first mixing shaft 2 and located on both sides of the first mixing shaft 2 respectively.

[0021] like Figures 2-4As shown, the first stirring shaft 2 includes a first rotating shaft 21, and a spiral blade 22 is fixedly mounted on the outer side of the first rotating shaft 21. The second stirring shaft 3 includes a second rotating shaft 31. In this embodiment, the middle part of the second rotating shaft 31 is a regular hexagonal prism structure, and the two ends are cylindrical structures. Multiple T-shaped blades 32 are fixedly connected to the outer wall of the second rotating shaft 31, and the multiple T-shaped blades 32 are spirally arranged along the outer wall of the second rotating shaft 31. That is, the multiple T-shaped blades 32 are arranged on the six sides of the second rotating shaft 31 respectively, and are arranged in a spiral shape. This arrangement facilitates the even distribution of the T-shaped blades 32. The T-shaped blades 32 include blade tips 321, which are prisms with triangular cross-sections, which are beneficial for shearing materials. The bottom of the blade tip 321 is fixedly connected to the outer wall of the second rotating shaft 31 by a rod 322. The T-shaped blades 32 and the spiral blades 22 are arranged alternately. The alternate arrangement allows the blades to play their roles in different positions, reducing over-stirring in the same area, reducing energy consumption, and improving the overall stirring efficiency. The spiral blades 22 propel the material along its axial direction, while the T-shaped blades 32 propel the material to generate radial (spreading outwards) and tangential (rotational) motions, shearing and dispersing the material. The superposition of these two blade motion patterns creates a complex three-dimensional mixing path, reducing dead zones and ensuring thorough mixing in all directions. This arrangement allows the mixing blades to form multiple mixing zones during the mixing process, enhancing material circulation and improving mixing uniformity. Specifically, the spiral blades 22 on the first mixing shaft 2 are primarily responsible for propelling the material along the axial direction of the mixing tank 1, forming axial circulation; the T-shaped blades 32 on the second mixing shaft 3 are responsible for shearing the material, enhancing mixing uniformity.

[0022] A drive motor 4 is mounted on the outer wall of one end of the mixing tank 1. The output shaft of the drive motor 4 is fixedly connected to one end of a first rotating shaft 21. A first gear 23 is fixedly mounted on the first rotating shaft 21, and a second gear 33 is fixedly mounted on each second rotating shaft 31. The first gear 23 meshes with both second gears 33. The number of teeth of the first gear 23 is greater than that of the second gear 33. Preferably, the ratio of the number of teeth of the first gear 23 to the number of teeth of the second gear 33 is 1.5:1, thereby making the speed ratio of the first rotating shaft 21 to the second rotating shaft 31 1:1.5. Through the cooperation of the first mixing shaft 2 and the second mixing shaft 3 with different speeds, multi-dimensional mixing of materials is achieved. Start the drive motor 4. The output shaft of the drive motor 4 rotates, which drives the first rotating shaft 21 to rotate. The rotation of the first rotating shaft 21 drives the first gear 23 and the spiral blade 22 fixedly connected to it to rotate. The spiral blade 22 stirs the material longitudinally. At the same time, the rotation of the first gear 23 drives the two second gears 33 meshing with it to rotate synchronously. The rotation of the two second gears 33 drives the two second rotating shafts 31 to rotate. The rotation of the two second rotating shafts 31 drives the T-shaped blades 32 to rotate, so as to shear and disperse the material.

[0023] like Figure 5As shown, a discharge gate 5 is provided below the discharge port. The discharge gate 5 opens or closes the discharge port through an opening and closing mechanism 6. The discharge gate 5 includes a discharge plate 51 and multiple connecting ribs 52 fixedly disposed at the bottom of the discharge plate 51. The multiple connecting ribs 52 are evenly distributed along the length of the discharge plate 51. The discharge plate 51 is used to close or open the discharge port and is located below the discharge port. The multiple connecting ribs 52 are fixedly connected to each other by a third rotating shaft 53 and a fourth rotating shaft 54, respectively. Both the third rotating shaft 53 and the fourth rotating shaft 54 ​​pass through and connect the multiple connecting ribs 52. The third rotating shaft 53 is located near its middle part, and the fourth rotating shaft 54 ​​is located near one end of it. The two ends of the fourth rotating shaft 54 ​​pass through the bottom of the mixing tank 1 and are rotatably connected to it.

[0024] The opening and closing mechanism 6 includes a telescopic cylinder 61, which is located at the other end of the mixing tank 1, meaning that the telescopic cylinder 61 and the drive motor 4 are located at opposite ends of the mixing tank 1. One end of the telescopic cylinder 61 is rotatably connected to a lifting lug 11 provided on the side wall of the mixing tank 1, and the other end is connected to the third rotating shaft 53 via a connecting plate 62. One end of the connecting plate 62 is hinged to the other end of the telescopic cylinder 61, and the other end of the connecting plate 62 is fixedly connected to one end of the third rotating shaft 53. When the telescopic cylinder 61 extends, its movable end pushes the third rotating shaft 53 to rotate. The third rotating shaft 53 rotates around the central axis of the fourth rotating shaft 54, which in turn drives the connecting rib plate 52 and the discharge plate 51 to rotate, so that the discharge plate 51 no longer closes the discharge port, allowing the mixed material to be discharged from the discharge port of the mixing tank 1. When the telescopic cylinder 61 retracts, its movable end drives the third rotating shaft 53 to rotate in the opposite direction around the central axis of the fourth rotating shaft 54. The rotation of the third rotating shaft 53 drives the connecting rib plate 52 and the discharge plate 51, which are fixedly connected, to rotate in the opposite direction until the discharge plate 51 completely closes the discharge port. The telescopic cylinder 61 extends and retracts, causing the discharge gate 5 to rotate, thereby controlling the opening or closing of the discharge port and facilitating the loading and unloading of materials.

[0025] like Figure 1 As shown, the bottom of the mixing tank 1 is provided with support legs 13 to support the mixing tank 1. The top of the mixing tank 1 is covered with an upper cover 12, and the feed inlet 121 is located in the middle of the upper cover 12. The upper cover 12 can be fixed to the top of the mixing tank 1 by bolt connection, or it can be rotatably mounted on the top of the mixing tank 1 by hinge connection, or it can be connected by snap-fit, etc. The connection method between the upper cover 12 and the mixing tank 1 is not limited here.

[0026] In operation, the mixing device for the mixing plant of this utility model has the telescopic cylinder 61 in a retracted state, the discharge gate 5 closing the discharge port, and materials being added into the mixing tank 1 through the inlet 121 at the top. Then, the drive motor 4 is started, and the output shaft of the drive motor 4 rotates, causing the spiral blades 22 on the first rotating shaft 21 to rotate, thus mixing the materials. The rotation of the first rotating shaft 21 drives the first gear 23 fixedly connected to it to rotate, which in turn drives the two second gears 33 meshing with it to rotate. The rotation of the second gears 33 drives the second rotating shaft 31 fixedly connected to it to rotate, which in turn drives the T-shaped blades 32 to rotate, thus shearing and dispersing the materials. After the materials are fully mixed by the first mixing shaft 2 and the two second mixing shafts 3, the telescopic cylinder 61 extends, causing the discharge gate 5 to rotate, thus discharging the mixed materials from the discharge port.

[0027] While this utility model discloses preferred embodiments to achieve the above objectives, it is not intended to limit the structural features of this utility model. Anyone skilled in the art should know that any easily conceivable variations or modifications are possible under the technical spirit of this utility model and are covered by the patent claims of this utility model.

Claims

1. A novel stirring device for a mixing plant, characterized in that, The device includes a mixing tank with an inlet at the top and an outlet at the bottom. A first stirring shaft is rotatably mounted inside the mixing tank and is horizontally positioned. Two second stirring shafts are also rotatably mounted inside the mixing tank, parallel to the first stirring shaft and located on opposite sides of it. The first stirring shaft includes a first rotating shaft with helical blades fixedly mounted on its outer side. The second stirring shafts include a second rotating shaft with multiple T-shaped blades fixedly connected to its outer wall. The multiple T-shaped blades are spirally arranged along the outer wall of the second rotating shaft. Each T-shaped blade includes a blade tip, which is a column with a triangular cross-section. The bottom of the blade tip is fixedly connected to the outer wall of the second rotating shaft via a rod.

2. A new type of mixing device for a mixing plant according to claim 1, characterized in that A drive motor is provided on the outer wall of one end of the mixing tank. The output shaft of the drive motor is fixedly connected to one end of the first rotating shaft. A first gear is fixedly provided on the first rotating shaft, and a second gear is fixedly provided on each of the second rotating shafts. The first gear is meshed with both of the second gears.

3. The new type of mixing device for a mixing plant according to claim 1, characterized in that A discharge gate is provided below the discharge port, and the discharge gate opens or closes the discharge port through an opening and closing mechanism.

4. A new type of mixing device for a mixing plant according to claim 3, characterized in that The discharge gate includes a discharge plate and a plurality of connecting ribs fixedly disposed at the bottom of the discharge plate, the plurality of connecting ribs being evenly distributed along the length direction of the discharge plate.

5. A new type of mixing device for a mixing plant according to claim 4, characterized in that The multiple connecting ribs are fixedly connected to each other by a third rotating shaft and a fourth rotating shaft. The third rotating shaft is located near its middle part, and the fourth rotating shaft is located near one end. The two ends of the fourth rotating shaft pass through the bottom of the mixing tank and are rotatably connected to it.

6. A new type of mixing device for a mixing plant according to claim 5, characterized in that The opening and closing mechanism includes a telescopic cylinder, which is disposed at the other end of the mixing tank. One end of the telescopic cylinder is rotatably connected to the mixing tank, and the other end is connected to the third rotating shaft through a connecting plate. One end of the connecting plate is hinged to the other end of the telescopic cylinder, and the other end of the connecting plate is fixedly connected to one end of the third rotating shaft.

7. The new type of mixing device for a mixing plant according to claim 1, characterized in that The top of the mixing tank is covered with a top cover, and the feed inlet is located in the middle of the top cover.

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