Red mud depolymerization pretreatment reactor
The red mud depolymerization pretreatment reactor, designed with five zones and layered structure, utilizes a spiral cutter and inclined cavity structure to solve the problem of red mud agglomeration, achieving efficient red mud depolymerization and material uniformity while reducing energy consumption.
Patent Information
- Application Number
- CN202520509565.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2026-03-06
- Estimated Expiration
- 2035-03-21
AI Technical Summary
Existing red mud pretreatment devices cannot achieve efficient dispersing, resulting in red mud clumping and affecting subsequent use.
A red mud depolymerization pretreatment reactor was designed, which adopts a five-zone layered structure, combined with a spiral cutter and inclined cavity structure. Through the inclined design of the spiral cutter and the progressively dense distribution of the fins, the gradual depolymerization treatment of red mud is achieved.
It improves the deagglomeration effect of red mud, avoids clogging problems, enhances the uniformity and flowability of materials, reduces energy consumption, and improves the operating efficiency of equipment.
Smart Images
Figure CN223970081U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of red mud pretreatment, and in particular to a red mud depolymerization pretreatment reactor. Background Technology
[0002] Red mud depolymerization is a key step in the resource utilization and environmental protection of red mud. By improving the physicochemical properties of red mud, reducing environmental hazards, and increasing resource utilization, it can not only reduce the negative impact of red mud on the environment, but also promote the application of red mud in multiple fields and promote the development of a green circular economy.
[0003] While existing technologies can achieve a certain degree of red mud dispersal during use, they have drawbacks: existing red mud pretreatment devices cannot achieve efficient dispersal, resulting in many agglomerates remaining after pretreatment, which affects subsequent normal use. In view of this, we propose a red mud deagglomeration pretreatment reactor to solve the above problems. Utility Model Content
[0004] The purpose of this invention is to address the problems existing in the background technology by proposing a red mud depolymerization pretreatment reactor.
[0005] The technical solution of this utility model is as follows: A red mud depolymerization pretreatment reactor includes a box body, the box body is provided with five layered regions, one side of the box body is a cylindrical cavity three, one side of the cylindrical cavity three is a cylindrical cavity two, one side of the cylindrical cavity two is a cylindrical cavity one, a rotating shaft is rotatably installed inside the box body, the upper end of the rotating shaft is provided with five spiral regions, one spiral blade one is fixed on one side of the rotating shaft, one spiral blade two is provided on one side of the spiral blade one, and one spiral blade three is provided on one side of the spiral blade two. The spiral blade one, spiral blade two and spiral blade three are respectively located inside the cylindrical cavity one, cylindrical cavity two and cylindrical cavity three;
[0006] When using this device, red mud is poured into the box through the feed inlet. Then, the motor drives the rotating shaft to rotate, and the red mud moves along the rotating spiral blades one, two spiral conical blades, two spiral conical blades, and three spiral blades. It moves from the larger diameter cylindrical cavity one to the smaller diameter cylindrical cavity three, which can maximize the retention of red mud inside the box. During the movement, the red mud is broken up by fins one, two, and three, so that the red mud changes from being agglomerated to being in a loose state after discharge. Then, the discharged material is collected for the next step of operation.
[0007] Preferably, an inclined cavity is provided between cylindrical cavity one and cylindrical cavity two, and an inclined cavity is provided between cylindrical cavity three and cylindrical cavity two. The inclined cavity one between cylindrical cavity one and cylindrical cavity two, and the inclined cavity two between cylindrical cavity two and cylindrical cavity three, achieves a smooth transition of red mud between different cavities. The inclined cavity structure avoids the blockage problem caused by sudden diameter changes during red mud transport. Simultaneously, the inclined angle optimizes the material flow path, and the fin structure subjectes the red mud to continuous shearing action during transport, further improving the uniformity and deagglomeration effect of the material.
[0008] Preferably, an inclined spiral conical blade is provided between the spiral blade one and the spiral blade two, and an inclined spiral conical blade is provided between the spiral blade three and the spiral blade two. The inclined spiral conical blade between the spiral blade one and the spiral blade two, and the inclined spiral conical blade between the spiral blade two and the spiral blade three, enhances the axial and radial mixing effect of the red mud during transport. The inclined design of the spiral conical blades not only improves the fluidity of the red mud, but also applies additional shear force to the red mud through their unique geometry, allowing the agglomerated red mud to be more fully deagglomerated in the transition region.
[0009] Preferably, the first and second spiral conical blades are located inside the first and second inclined cavities, respectively. This design fully utilizes the spatial structure of the inclined cavities, allowing the red mud to undergo continuous shearing action from the spiral conical blades within the cavities. This design not only improves the transport efficiency of the red mud but also further enhances the deagglomeration effect of the red mud through the cooperation between the spiral conical blades and the inclined cavity walls, preventing material accumulation and blockage within the inclined cavities.
[0010] Preferably, the pitch of the first spiral cutter is greater than that of the second spiral cutter, the pitch of the second spiral cutter is greater than that of the third spiral cutter, the inner diameter of the first cylindrical cavity is greater than that of the second cylindrical cavity, the inner diameter of the second cylindrical cavity is greater than that of the third cylindrical cavity, and the pitch of the first spiral cutter is greater than that of the second spiral cutter, the pitch of the second spiral cutter is greater than that of the third spiral cutter, and simultaneously the inner diameter of the first cylindrical cavity is greater than that of the second cylindrical cavity, and the inner diameter of the second cylindrical cavity is greater than that of the third cylindrical cavity, thus forming a progressive compression and depolymerization structure. This design causes the red mud to be subjected to increasingly stronger shear forces during transport, while simultaneously achieving this through gradient changes in pitch and inner diameter.
[0011] Preferably, the lower end of the housing is provided with a bracket, and a base is fixed to the lower end of the bracket. A controller is provided on one outer wall of the housing. The support structure at the lower end of the housing, with a base fixed to the lower end of the support, enhances the overall stability and shock resistance of the equipment. The support structure keeps the equipment stable during high-speed operation and reduces noise transmission from the device.
[0012] Preferably, one side of the cylindrical cavity is provided with an inclined feed inlet, and the other side of the cylindrical cavity is provided with an inclined discharge outlet. A motor is fixed to the outer wall of one side of the box body, and the output shaft of the motor is fixedly connected to one side of the rotating shaft. The inclined feed inlet and discharge outlet on one side of the cylindrical cavity optimize the feeding and discharging path of the red mud and reduce the possibility of material blockage.
[0013] Preferably, fin one is fixed inside cylindrical cavity one, fin two is fixed inside cylindrical cavity two, and fin three is fixed inside cylindrical cavity three. The density of fin one is less than that of fin two, and the density of fin two is less than that of fin three. Fin one, fin two, and fin three are respectively arranged inside cylindrical cavity one, cylindrical cavity two, and cylindrical cavity three, and the density of fins gradually increases, forming a progressive dispersing structure. The fin design subjectes the red mud to multi-directional shearing and collision during transport, further enhancing the deagglomeration effect of the red mud. The gradient change in fin density causes the red mud to be dispersed to different degrees at different stages, ultimately achieving an ideal loose state.
[0014] Compared with existing technologies, the advantages of this utility model are:
[0015] I. This utility model achieves progressive deagglomeration treatment of red mud through a five-region layered design, the synergistic effect of three cylindrical cavities (cylindrical cavity one, cylindrical cavity two, and cylindrical cavity three), and a spiral cutter assembly (spiral cutter one, spiral cutter two, and spiral cutter three), combined with the smooth transition structure of inclined cavity one and inclined cavity two. The inclined design of spiral conical cutter one and spiral conical cutter two further enhances the axial and radial mixing effect of red mud, while the progressively dense distribution of fins one, two, and three provides multi-directional shearing and collision effects.
[0016] Second, based on the first beneficial effect, the inclined design of the inlet and outlet in this device optimizes the material flow path and avoids clogging problems. Simultaneously, the direct connection between the motor and the rotating shaft simplifies the transmission structure and improves energy transmission efficiency. The gradient changes in the pitch and inner diameter of the spiral cutter assembly create a progressive compression and deagglomeration structure, subjecting the red mud to increasingly stronger shear forces during transport. The overall design not only improves the equipment's operating efficiency but also reduces energy consumption, achieving energy-efficient and high-performance red mud deagglomeration treatment.
[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0018] Figure 1 This is a three-dimensional schematic diagram of the present invention;
[0019] Figure 2 This is a schematic diagram of the rotating shaft of this utility model;
[0020] Figure 3 This is a schematic diagram of the internal structure of the present invention;
[0021] Figure 4 For the present utility model Figure 3 Enlarged schematic diagram of structure A in the middle.
[0022] Figure label:
[0023] 1. Housing; 2. Feed inlet; 3. Controller; 4. Base; 5. Support; 6. Discharge outlet; 7. Rotating shaft; 8. Spiral cutter one; 9. Spiral cutter two; 10. Spiral cutter three; 11. Spiral conical cutter two; 12. Spiral conical cutter one; 13. Cylindrical cavity three; 14. Cylindrical cavity two; 15. Cylindrical cavity one; 16. Inclined cavity one; 17. Fin two; 18. Inclined cavity two; 19. Fin three; 20. Fin one; 21. Motor. Detailed Implementation
[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0025] Many specific details are set forth in the following description in order 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.
[0026] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.
[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.
[0028] Example 1
[0029] Please see Figures 1-4As shown, this embodiment is a red mud depolymerization pretreatment reactor, including a box body 1. The box body 1 has five layered regions inside. One side of the box body 1 is a cylindrical cavity 3 13, one side of the cylindrical cavity 3 13 is a cylindrical cavity 2 14, and one side of the cylindrical cavity 2 14 is a cylindrical cavity 15. A rotating shaft 7 is rotatably installed inside the box body 1. The upper end of the rotating shaft 7 has five spiral regions. One side of the rotating shaft 7 is fixed with a spiral blade 1 8, one side of the spiral blade 1 8 is a spiral blade 2 9, and one side of the spiral blade 2 9 is a spiral blade 3 10. Spiral blade 1 8, spiral blade 2 9, and spiral blade 3 10 are located inside the cylindrical cavity 15, cylindrical cavity 2 14, and cylindrical cavity 3 13, respectively.
[0030] When using this device, red mud is poured into the box 1 through the feed inlet 2. Then, the motor 21 drives the rotating shaft 7 to rotate. The red mud will move along the rotating spiral blade 1 8, spiral conical blade 1 12, spiral blade 2 9, spiral conical blade 2 11 and spiral blade 3 10, and move from the larger diameter cylindrical cavity 15 to the smaller diameter cylindrical cavity 3 13. This can maximize the retention of red mud inside the box 1. During the movement, the red mud will be broken up by fins 1 20, fin 2 17 and fin 3 19, so that the red mud changes from the initial agglomeration to a loose state after discharge. Then, the discharged material is collected for the next operation.
[0031] An inclined cavity 16 is provided between cylindrical cavity one 15 and cylindrical cavity two 14, and an inclined cavity 2 18 is provided between cylindrical cavity three 13 and cylindrical cavity two 14. The placement of inclined cavity one 16 between cylindrical cavity one 15 and cylindrical cavity two 14, and inclined cavity two 18 between cylindrical cavity two 14 and cylindrical cavity three 13, achieves a smooth transition of red mud between different cavities. The inclined cavity structure avoids the blockage problem caused by sudden diameter changes during red mud transport. Simultaneously, the inclined angle optimizes the material flow path, and the fin structure subjectes the red mud to continuous shearing action during transport, further improving material uniformity and deagglomeration effect.
[0032] Example 2
[0033] Please see Figures 1-4 As shown, this embodiment, based on embodiment 1, further includes: an inclined spiral conical blade 12 between spiral blade 8 and spiral blade 9, and an inclined spiral conical blade 11 between spiral blade 3 and spiral blade 9. The inclined spiral conical blade 12 between spiral blade 8 and spiral blade 2, and the inclined spiral conical blade 11 between spiral blade 2 and spiral blade 3, enhance the axial and radial mixing effect of the red mud during transport. The inclined design of the spiral conical blades not only improves the fluidity of the red mud but also applies additional shear force to the red mud through their unique geometry, allowing the agglomerated red mud to be more fully deagglomerated in the transition region.
[0034] Spiral conical blade 12 and spiral conical blade 21 are located inside inclined cavities 16 and 18, respectively. This design fully utilizes the spatial structure of the inclined cavities, allowing the red mud to undergo continuous shearing action from the spiral conical blades within the cavities. This design not only improves the transport efficiency of the red mud but also further enhances the deagglomeration effect of the red mud through the cooperation between the spiral conical blades and the inclined cavity walls, preventing material accumulation and blockage within the inclined cavities.
[0035] The pitch of spiral cutter 8 is greater than that of spiral cutter 9, and the pitch of spiral cutter 9 is greater than that of spiral cutter 10. The inner diameter of cylindrical cavity 15 is greater than that of cylindrical cavity 14, and the inner diameter of cylindrical cavity 14 is greater than that of cylindrical cavity 13. This creates a progressive compression and depolymerization structure. This design subjectes the red mud to increasingly stronger shear forces during transport, achieved through gradient changes in pitch and inner diameter.
[0036] A bracket 5 is provided at the lower end of the housing 1, and a base 4 is fixed to the lower end of the bracket 5. A controller 3 is provided on one outer wall of the housing 1. The bracket 5 at the lower end of the housing 1 and the base 4 fixed to the lower end of the bracket 5 enhance the overall stability and shock resistance of the equipment. The structure of the bracket 5 keeps the equipment stable during high-speed operation and reduces the transmission of noise from the device.
[0037] The cylindrical cavity 15 has an inclined feed inlet 2 on one side and the cylindrical cavity 3 has an inclined discharge outlet 6 on one side. A motor 21 is fixed to the outer wall of one side of the box body 1. The output shaft of the motor 21 is fixedly connected to the rotating shaft 7 on one side. The inclined feed inlet 2 and discharge outlet 6 on the cylindrical cavity 15 optimize the feeding and discharging path of red mud and reduce the possibility of material blockage.
[0038] Fin 20 is fixed inside cylindrical cavity 15, fin 17 is fixed inside cylindrical cavity 24, and fin 19 is fixed inside cylindrical cavity 33. The density of fin 20 is less than that of fin 17, and the density of fin 17 is less than that of fin 19. Fins 20, 17, and 19 are respectively installed inside cylindrical cavities 15, 14, and 13, with the density of fins gradually increasing, forming a progressive dispersing structure. The fin design subjectes the red mud to multi-directional shearing and collision during transport, further enhancing the deagglomeration effect of the red mud. The gradient change in fin density causes the red mud to be dispersed to different degrees at different stages, ultimately achieving an ideal loose state.
[0039] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit this utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A red mud depolymerisation pre-treatment reactor comprising a tank (1), characterised in that: The box (1) is internally provided with five area layers, one side of the box (1) is a cylindrical cavity three (13), one side of the cylindrical cavity three (13) is provided with a cylindrical cavity two (14), one side of the cylindrical cavity two (14) is provided with a cylindrical cavity one (15), the box (1) is rotatably provided with a rotating shaft (7), the upper end of the rotating shaft (7) is provided with five spiral areas, one side of the rotating shaft (7) is fixedly provided with a spiral knife one (8), one side of the spiral knife one (8) is provided with a spiral knife two (9), one side of the spiral knife two (9) is provided with a spiral knife three (10), the spiral knife one (8), the spiral knife two (9) and the spiral knife three (10) are respectively located in the cylindrical cavity one (15), the cylindrical cavity two (14) and the cylindrical cavity three (13).
2. A red mud depolymerisation pre-treatment reactor according to claim 1, characterised in that: The cylindrical cavity one (15) and the cylindrical cavity two (14) are provided with an inclined cavity one (16), and the cylindrical cavity three (13) and the cylindrical cavity two (14) are provided with an inclined cavity two (18).
3. A red mud depolymerisation pre-treatment reactor according to claim 1, characterised in that: The spiral knife one (8) and the spiral knife two (9) are provided with an inclined spiral cone knife one (12), and the spiral knife three (10) and the spiral knife two (9) are provided with an inclined spiral cone knife two (11).
4. A red mud depolymerisation pre-treatment reactor according to claim 3, characterised in that: The spiral cone knife one (12) and the spiral cone knife two (11) are respectively located in the inclined cavity one (16) and the inclined cavity two (18).
5. A red mud depolymerisation pre-treatment reactor according to claim 1, characterised in that: The pitch of the spiral knife one (8) is greater than that of the spiral knife two (9), the pitch of the spiral knife two (9) is greater than that of the spiral knife three (10), the inner diameter of the cylindrical cavity one (15) is greater than that of the cylindrical cavity two (14), and the inner diameter of the cylindrical cavity two (14) is greater than that of the cylindrical cavity three (13).
6. A red mud depolymerisation pre-treatment reactor according to claim 1, characterised in that: The lower end of the box (1) is provided with a support (5), the lower end of the support (5) is fixedly provided with a base (4), and one side of the outer wall of the box (1) is provided with a controller (3).
7. A red mud depolymerisation pre-treatment reactor according to claim 1, characterised in that: One side of the cylindrical cavity one (15) is provided with an inclined feed inlet (2), one side of the cylindrical cavity three (13) is provided with an inclined discharge outlet (6), one side of the outer wall of the box (1) is fixedly provided with a motor (21), and the output shaft of the motor (21) is fixedly connected with one side of the rotating shaft (7).
8. A red mud depolymerisation pre-treatment reactor according to claim 1, characterised in that: The cylindrical cavity one (15) is internally fixedly provided with a fin one (20), the cylindrical cavity two (14) is internally fixedly provided with a fin two (17), and the cylindrical cavity three (13) is internally fixedly provided with a fin three (19). The fin one (20) is less dense than the fin two (17), and the fin two (17) is less dense than the fin three (19).