Stirring equipment for alumina clinker
By adding spiral scrapers and stirring blades in the alumina clinker mixing equipment, the problems of fast settlement and strong adhesion of alumina clinker are solved, and the continuous operation of the equipment and the reduction of labor intensity are achieved.
Patent Information
- Application Number
- CN202422239157.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-12
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-09-12
AI Technical Summary
During the production process, alumina clinker settles quickly, has strong adhesion and fast condensation speed, resulting in equipment blockage and production lines that cannot be continuously operated, and workers have a high labor intensity.
Add spiral scrapers and stirring blades to the mixing equipment. The spiral scrapers scrape away the sticky material on the groove wall, and the stirring blades and rake nails loosen the accumulation of materials at the bottom of the groove to ensure smooth discharge of the materials.
It avoids equipment blockage, ensures continuous operation of the production line, reduces the labor intensity of workers, and realizes continuous operation of the equipment.
Smart Images
Figure CN223042586U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a stirring device for alumina clinker, belonging to the technical field of alumina production equipment. Background Art
[0002] During the production process of extracting alumina from fly ash by the limestone sintering method in our company, the alumina clinker produced has the following characteristics in the solution: 1. Fast sedimentation speed; 2. Strong adhesion to the tank; 3. Fast setting speed. Due to the above characteristics, it is difficult to feed the clinker into the mill or the tank. It is easy to block the equipment in a short time, the manual cleaning time is long, the production line cannot operate continuously, and the labor intensity of workers is high.
[0003] Therefore, our company has changed the direct feeding at the mill head to stirring and pulping into the mill. The structure of a common stirring device consists of the following parts: the motor reducer drive part; the coupling and the stirring shaft; three stirring blades installed at the lower end of the stirring shaft and the stirring tank body. This kind of stirring device only has the function of mixing the materials evenly to ensure that the materials in the equipment do not precipitate, but the materials adhered and solidified on the inner wall of the tank cannot be cleaned, which will cause the materials to accumulate thicker and thicker on the tank wall, the volume of the tank to become smaller and smaller, and finally paste the tank to death, resulting in inability to stir and production shutdown. Summary of the Invention
[0004] The purpose of the utility model is to provide a stirring device for alumina clinker. When the stirring device is running, the rotating spiral scraping blade gradually scrapes off the materials adhered to the tank wall. At the same time, the spiral scraping blade drives the slurry to move downward, playing a stirring role; the lower stirring blade plays a stirring role on the one hand and scrapes and loosens the accumulated materials at the bottom of the tank on the other hand, so as to prevent sinking of the tank, ensure the smooth feeding of materials, and solve the production problems.
[0005] The technical solution of the utility model: A stirring device for alumina clinker includes a stirring tank body. A stirring shaft is arranged inside the stirring tank body. Multiple stirring blades are arranged at the bottom of the stirring shaft. Tooth-shaped harrows are arranged at the bottom of the stirring blades. Multiple layers of tie bars are also arranged at intervals on the stirring shaft above the stirring blades. The end of the stirring blade is fixedly connected with a spiral scraping blade. During the upward spiral setting process of the spiral scraping blade, it is fixedly connected with the ends of different layers of tie bars in sequence.
[0006] In the aforementioned stirring equipment for alumina clinker, there are 3 stirring blades, and the adjacent stirring blades are arranged at an interval of 120°; the tension bar structure of each layer has the same structure as the stirring blade structure, and the tension bar of the lowest layer is staggered with the stirring blade by 60°; the tension bars of the upper and lower layers are also staggered by 60°; there are also 3 spiral scraping blades, and the bottom head of each spiral scraping blade is fixedly connected to the head of a stirring blade respectively, and during the upward spiral setting process of each spiral scraping blade, it is fixedly connected to the end of 1 tension bar of different layers in turn.
[0007] In the aforementioned stirring equipment for alumina clinker, the distance between the outermost side end of the spiral scraping blade and the inner wall of the stirring tank is 10 mm; the distance between the bottom of the harrow nail and the inner bottom surface of the stirring tank is 30 mm.
[0008] In the aforementioned stirring equipment for alumina clinker, the spiral scraping blade is fixedly welded to the stirring blade and the tension bar.
[0009] The beneficial effects of the present utility model: Compared with the prior art, the present utility model modifies the existing stirring equipment, adds harrow nails at the bottom of the stirring blade, sets multiple layers of tension bars on the stirring shaft, and then sets multiple spiral scraping blades, and fixes the spiral scraping blades to the stirring blade and the tension bar together. When the stirring equipment is running, the rotating spiral scraping blade gradually scrapes off the materials adhered to the tank wall. Before the sticky materials are formed, they are scraped off by the spiral scraping blade. At the same time, the spiral scraping blade drives the slurry to move downward, playing a stirring role; the lower stirring blade plays a stirring role on the one hand, and on the other hand, the harrow nails at its bottom play a role in scraping and loosening the accumulated materials at the bottom of the tank, so that the materials will not sink to the bottom of the tank, ensuring the smooth feeding of the materials, solving the production problem, preventing the materials from pasting the tank body, ensuring the continuous operation of the stirring work and the continuous operation of the production line, without the need for manual cleaning of the tank body at intervals, reducing the labor intensity of workers, and having good popularization and application value. Description of the Drawings
[0010] Figure 1 It is a schematic structural diagram of the present utility model;
[0011] Figure 2 It is a distribution schematic diagram of the tension bar of the lowest layer and the stirring blade;
[0012] Figure 3 It is a schematic structural diagram before the transformation of the stirring equipment.
[0013] Reference numerals: 1 - stirring tank body, 2 - stirring shaft, 3 - stirring blade, 4 - harrow nail, 5 - tension bar, 6 - spiral scraping blade. Detailed Embodiment
[0014] The present utility model will be further described below in conjunction with the accompanying drawings and embodiments, but it shall not be used as a basis for limiting the present utility model.
[0015] Embodiment of the present utility model: A stirring device for alumina clinker, comprising a stirring tank body 1, a stirring shaft 2 is arranged inside the stirring tank body 1, a plurality of stirring blades 3 are arranged at the bottom of the stirring shaft 2, serrated harrow pins 4 are arranged at the bottom of the stirring blades 3, and multiple layers of tension ribs 5 are also arranged at intervals on the stirring shaft 2 above the stirring blades 3. The tension ribs 5 are all fixedly connected to the stirring shaft 2. The end of the stirring blade 3 is fixedly connected with a spiral scraping blade 6. During the upward spiral setting process of the spiral scraping blade 6, it is fixedly connected to the ends of the tension ribs 5 of different layers in sequence.
[0016] When the stirring device is in operation, the rotating spiral scraping blade 6 gradually scrapes off the materials adhered to the wall of the stirring tank body 1. Before the sticky materials are formed, they are scraped off by the spiral scraping blade 6. At the same time, the spiral scraping blade 6 drives the slurry to move downward, playing a stirring role; the lower stirring blade 3 plays a stirring role on the one hand, and on the other hand, the harrow pins 4 at its bottom scrape and loosen the accumulated materials at the bottom of the tank, so that the materials will not sink to the bottom of the tank.
[0017] Three stirring blades 3 are provided, and the adjacent stirring blades 3 are arranged at an interval of 120°. The structure of the tension ribs 5 of each layer is the same as that of the stirring blades 3. Among them, the lowest layer of tension ribs 5 is staggered 60° from the lower stirring blade 3, and the upper and lower layers of tension ribs 5 are also staggered 60°. It is equivalent to lifting the stirring blade 3 by a certain height, and then rotating 60° to obtain the structure of the lowest layer of tension ribs 5. Similarly, the structure of the upper layer of tension ribs 5 can be obtained by lifting the structure of the lower layer of tension ribs 5 by a certain height and then rotating 60°.
[0018] Three spiral scraping blades 6 are also provided. The bottom head end of each spiral scraping blade 6 is fixedly connected to the head end of one of the stirring blades 3 respectively. During the upward spiral setting process of each spiral scraping blade 6, it is fixedly connected to the ends of 1 tension rib 5 of different layers in sequence.
[0019] Taking the present application Figure 1 as an example, at intervals of 300 mm on the stirring shaft 2, 3 tension ribs 5 of appropriate strength are evenly and fixedly arranged to form a layer of tension rib layer. The length of the tension ribs 5 is the same as that of the stirring blades 3. Six layers of tension rib layers are sequentially arranged from bottom to top to the top cover of the tank. Three spiral scraping blades 6 with a pitch of 1800 mm (thickness 10 mm, width 50 mm) are processed. The three spiral scraping blades 6 are respectively fixed to the heads of 3 stirring blades 3 and welded to the corresponding tension ribs 5 along the spiral line to form a three-head spiral structure. Install this spiral stirring structure into the stirring tank body 1 and it can be put into operation.
[0020] The outermost end of the spiral scraping blade 6 is spaced 10 mm from the inner wall of the stirring tank body 1; the bottom of the harrow nail 4 is spaced 30 mm from the inner bottom surface of the stirring tank body 1, ensuring that the spiral scraping blade 6 can well scrape off the sticky material attached to the inner wall of the stirring tank body 1, while the harrow nail 4 can well scrape off the material attached to the inner bottom surface of the stirring tank body 1, avoiding the situation of material sinking in the tank.
[0021] The spiral scraping blade 6 is fixedly welded to the stirring blade 3 and the tension bar 5. By simple welding, the connection between components is ensured to be firm. Welded connection can well avoid loosening due to the resistance of materials during the rotation of components.
Claims
1. A stirring device for alumina clinker, comprising a stirring tank body (1), a stirring shaft (2) being arranged inside the stirring tank body (1), and a plurality of stirring blades (3) being arranged at the bottom of the stirring shaft (2), characterized in that: A sawtooth-shaped rake nail (4) is arranged at the bottom of the stirring blade (3), and a plurality of layers of tie bars (5) are arranged at intervals on the stirring shaft (2) above the stirring blade (3). The end of the stirring blade (3) is fixedly connected with a spiral scraper (6), and the spiral scraper (6) is fixedly connected to the ends of different layers of tie bars (5) in sequence during the process of spirally setting upward.
2. A stirring device for alumina clinker according to claim 1, characterized in that: The stirring blades (3) are provided with three pieces, and the adjacent stirring blades (3) are arranged at intervals of 120 degrees; the structure of the tie bars (5) of each layer is the same as the structure of the stirring blades (3), wherein the tie bars (5) of the lowest layer are arranged at an angle of 60 degrees to the stirring blades (3); the tie bars (5) of the upper and lower layers are also arranged at an angle of 60 degrees; and the spiral scrapers (6) are also provided with three pieces, and the bottom head end of each spiral scraper (6) is fixedly connected to the head end of a stirring blade (3), and each spiral scraper (6) is fixedly connected to the end of a tie bar (5) of a different layer in sequence during the process of spirally arranging upwards.
3. The stirring device for alumina clinker according to claim 1, characterized in that: The outermost end of the spiral scraper (6) is 10 mm away from the inner wall of the stirring tank body (1); the bottom of the rake nail (4) is 30 mm away from the inner bottom surface of the stirring tank body (1).
4. The stirring device for alumina clinker according to claim 1, characterized in that: The spiral scraper (6) is welded and fixed to the stirring blade (3) and the tie rod (5).