Screening and collecting device for aluminum ash calcined materials
By employing a two-stage screening structure with a drum screen and an arched screen plate, along with a pendulum mechanism to prevent clogging, and combining this with an electric heater to treat damp materials, the problem of clogging in screening equipment has been solved, improving the separation effect of calcium aluminate and aluminum ash and the continuity of equipment production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANXI HONGTIAN HIGH TEMPERATURE BUILDING MATERIALS CO LTD
- Filing Date
- 2025-08-01
- Publication Date
- 2026-05-12
AI Technical Summary
Existing screening equipment is easily clogged by fine aluminum ash, resulting in poor production continuity and low product purity, which affects the recycling rate and market value of calcium aluminate and aluminum ash.
It adopts a two-stage screening structure of drum screen and arched screen plate, combined with the funnel-shaped arrangement of the receiving plate and the baffle design, uses a pendulum mechanism to prevent clogging, and uses an electric heater to treat wet materials, and uses spring shock absorbers to reduce equipment vibration.
It improves screening accuracy and product purity, reduces resource waste, enhances production continuity and safety, and extends equipment lifespan.
Smart Images
Figure CN224222002U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of screening equipment technology, specifically relating to a screening and collection device for calcined aluminum ash materials. Background Technology
[0002] Aluminum ash is a solid waste generated during aluminum electrolysis production. After high-temperature calcination, it forms two products: coarse-grained calcium aluminate and fine-grained aluminum ash waste. The separated calcium aluminate is used as a raw material in building materials and water treatment agents, such as in the production of cement and ceramics, while the fine-grained aluminum ash waste requires further processing. Therefore, the effectiveness of the separation not only affects the recycling rate of calcium aluminate but also hinders the compliant disposal of aluminum ash.
[0003] Currently, the traditional method of separating these two materials has gradually evolved from manual screening to mechanical screening. While screening equipment can improve efficiency, existing screening equipment uses a fixed vibrating screen structure. After the material is fed from above, fine aluminum ash falls through the screen, while coarse calcium aluminate particles remain on the screen surface. However, the screens of this type of equipment are easily clogged by fine aluminum ash, especially in environments with high humidity. The screen holes can become blocked in a short time, obstructing material flow and requiring frequent shutdowns for manual cleaning with brushes, which can take several hours per day. In addition, the purity of the screened product is insufficient, with calcium aluminate containing a large amount of fine ash, affecting its market value. Meanwhile, small particles of calcium aluminate are often mixed in with the aluminum ash, resulting in resource waste.
[0004] Therefore, redesigning screening equipment to solve clogging problems and improve screening efficiency and product purity has become a key aspect of current technological improvements. This not only concerns production continuity but also directly affects output and product quality. Utility Model Content
[0005] In view of the many problems existing in traditional screening equipment in the background art, this utility model provides a screening and collection device for aluminum ash calcined materials.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a clogging-resistant sieving and collecting device for calcined calcium aluminate ash, comprising a frame and a box, the box being mounted on the frame, an inlet and a first outlet being provided at the top and bottom of the box respectively, and a second outlet being provided on the two side walls of the box respectively, and a drum screen and an arched screen plate being provided inside the box, the arched screen plate being located below the drum screen, and the two ends of the arched screen plate being smoothly connected to the second outlet, the drum screen having a larger aperture than the arched screen plate, and being driven to rotate by a motor.
[0007] As a further explanation of the above technical solution, two receiving plates are fixed inside the box. The two receiving plates are arranged in a funnel shape, and gaps are left between both and the surface of the drum screen.
[0008] As a further explanation of the above technical solution, two baffles are fixed inside the box, and the two baffles are located at the two ends of the drum screen, respectively, and are not connected to each other.
[0009] As a further explanation and limitation of the above technical solution, the two ends of the central rotating shaft of the drum screen are rotatably connected to the two side walls of the box, and one end is connected to the output shaft of the motor through a pulley. The motor is installed at the bottom of the box.
[0010] As a further explanation and limitation of the above technical solution, the box body is connected to the frame through two sets of spring shock absorbers. The two sets of spring shock absorbers are respectively arranged on the bottom of the box body and on its upper side wall. Each set of spring shock absorbers includes four and is distributed at the four corners of the box body. Multiple sets of pendulum mechanisms are arranged side by side on the central rotating shaft of the drum screen. Under the buffering effect of the spring shock absorbers, the pendulum mechanisms use the centrifugal force generated when the drum screen rotates to vibrate the aluminum ash adhering to its screen surface.
[0011] As a further explanation and limitation of the above technical solution, ear holes are fixedly connected to the bottom and top four corners of the housing, respectively, for fixing and connecting the spring shock absorbers.
[0012] As a further explanation and limitation of the above technical solution, the spring shock absorber consists of a spring, a support, a connecting screw and a nut. The connecting screw is fixed to the frame by the support, the spring is sleeved on the connecting screw, and the end of the connecting screw passes through the lug seat of the housing and is fixedly connected by a nut.
[0013] As a further explanation and limitation of the above technical solution, the pendulum mechanism includes a fixed plate and a mounting hole at its center. Limit grooves are provided at the four corners of the fixed plate, and a connecting rod is rotatably connected in the limit groove. A counterweight is fixed at the end of the connecting rod.
[0014] As a further supplement to the above technical solution, a protective cover is provided on the frame to protect the pulley.
[0015] As a further supplement to the above technical solution, electric heaters are respectively installed on the two side walls of the box, and the electric heaters are located above the second discharge port.
[0016] Compared with the prior art, the present invention has the following advantages:
[0017] This utility model adopts a two-stage screening structure of drum screen and arched screen plate, combined with the funnel-shaped arrangement of the receiving plate and the anti-splash design of the baffle, so that calcium aluminate and aluminum ash waste are separated more thoroughly, reducing the amount of fine ash inclusions in calcium aluminate and the residual small particles of calcium aluminate in aluminum ash, reducing resource waste, and improving screening accuracy and product purity.
[0018] 2. This utility model utilizes a pendulum mechanism installed on the central rotating shaft of the drum screen, employing centrifugal force to drive a heavy hammer to strike the screen, reducing the adhesion and clogging of fine aluminum ash particles and effectively solving the screen clogging problem of traditional screening equipment. Simultaneously, the electric heater on the side wall of the housing addresses material agglomeration in humid environments, significantly reducing downtime for cleaning and improving production continuity.
[0019] 3. This utility model reduces equipment vibration and extends service life by using two sets of spring shock absorbers; the protective cover on the frame covers the pulleys and motor to avoid accidental contact during operation, improve production safety, and adapt to different working conditions to meet the needs of efficient and stable screening. Attached Figure Description
[0020] Figure 1 This is a three-dimensional structural diagram of the aluminum ash calcination material screening and collection device of this utility model;
[0021] Figure 2 This is a cross-sectional view of the internal structure of the material screening and collecting device of this utility model;
[0022] Figure 3 for Figure 2 A partially enlarged schematic diagram of the A-section of the spring damper;
[0023] Figure 4 This is a schematic diagram of the pendulum mechanism in this utility model;
[0024] Figure 5 This is a side view of the aluminum ash calcination material screening and collection device of this utility model.
[0025] In the diagram: 1 is the frame, 2 is the housing, 3 is the feed inlet, 4 is the first discharge outlet, 5 is the second discharge outlet, 6 is the drum screen, 7 is the arched screen plate, 8 is the motor, 9 is the receiving plate, 10 is the baffle, 11 is the spring shock absorber, 12 is the pendulum mechanism, 13 is the pulley, 14 is the protective cover, 15 is the ear hole seat, 16 is the electric heater, 1101 is the spring, 1102 is the support, 1103 is the connecting screw, 1104 is the nut, 1201 is the fixing plate, 1202 is the mounting hole, 1203 is the limiting groove, 1204 is the connecting rod, and 1205 is the counterweight. Detailed Implementation
[0026] To further illustrate the technical solution of this utility model, the following description is in conjunction with the appendix. Figure 1-5 Based on the specific modification and implementation process, we will further illustrate this utility model through four embodiments. Example 1
[0027] As attached Figure 1-5As shown, a screening and collection device for calcined aluminum ash includes a frame 1 and a housing 2. The housing 2 is mounted on the frame 1 and is connected to the frame 1 by two sets of spring shock absorbers 11. Each set of spring shock absorbers 11 includes four spring shock absorbers distributed at the four corners of the housing 2. The two sets of spring shock absorbers 11 are respectively arranged on the bottom and the upper side wall of the housing 2. Ear holes 15 are fixedly connected to the bottom and the four corners of the upper end of the housing 2 for connecting the spring shock absorbers 11. A feed inlet 3 and a first discharge outlet 4 are respectively provided at the top and bottom of the box body 2. A second discharge outlet 5 is respectively provided on the two side walls of the box body 2. A drum screen 6 and an arched screen plate 7 are provided inside the box body 2. The arched screen plate 7 is located below the drum screen 6, and its two ends are smoothly connected to the second discharge outlet 5. The aperture of the drum screen 6 is larger than that of the arched screen plate 7. Specifically, it is preferred that the aperture of the drum screen 6 is 8mm and the aperture of the arched screen plate 7 is 3mm. A motor 8 is installed at the bottom of the housing 2. The two ends of the central rotating shaft of the drum screen 6 are rotatably connected to the two side walls of the housing 2, and one end is connected to the output shaft of the motor 8 through the pulley 13. The drum screen 6 is driven by the motor 8 to rotate, so that the aluminum ash calcined material is screened by the rotation of the drum screen 6, which simultaneously increases the material flowability. The screened calcium aluminate and aluminum ash waste are screened again by the arched screen plate 7, which further separates the fine particles mixed in the aluminum ash waste. Finally, they are discharged together with the initially screened calcium aluminate through the second discharge port 5, while the aluminum ash waste is discharged through the first discharge port 4 after two screenings.
[0028] In the above embodiments, the structure and specific installation method of the spring shock absorber are as follows: each spring shock absorber 11 is composed of a spring 1101, a support 1102, a connecting screw 1103 and a nut 1104. The connecting screw 1103 is fixed on the frame 1 through the support 1102. The spring 1101 is sleeved on the connecting screw 1103. The end of the connecting screw 1103 passes through the ear hole seat 15 of the housing 2 and is fixedly connected by the nut 1104.
[0029] Furthermore, a protective cover 14 is provided on the frame 1, which covers the pulley 13 and the motor 8 to prevent accidental contact during operation and improve safety. Example 2
[0030] To prevent material from splashing due to excessive centrifugal force generated by high-speed rotation, which would lead to poor screening results. (See attached image) Figure 2As shown, we made the following two modifications based on Example 1: First, two receiving plates 9 are fixed inside the housing 2. The two receiving plates 9 are arranged in a funnel shape, and gaps are left between both and the surface of the drum screen 6 to ensure that the material is effectively guided to the center of the drum screen 6 during rotation. Second, baffles 10 are added to both sides of the drum screen 6. The height of the baffles 10 is slightly lower than the edge of the drum screen 6, but they are not connected to each other. This design effectively prevents the material from flying out from both ends of the drum screen 6, while ensuring that the material is evenly distributed during screening and improving screening efficiency. Example 3
[0031] like Figure 2 and 4 Traditional rotary drum screens, when screening aluminum ash waste, are prone to clogging due to fine aluminum ash particles adhering to the screen holes, requiring frequent shutdowns for cleaning. This embodiment achieves screen self-cleaning by adding a pendulum mechanism. The specific implementation is as follows: Multiple sets of pendulum mechanisms 12 are arranged side by side on the central rotating shaft of the rotary drum screen 6. Each pendulum mechanism 12 includes a fixed plate 1201 and a mounting hole 1202 in its center. Limiting grooves 1203 are provided at the four corners of the fixed plate 1201, and connecting rods 1204 are rotatably connected within the limiting grooves 1203. A weight 1205 is fixed to the end of the connecting rod 1204. The pendulum mechanism 12 is fixed to the central rotating shaft of the rotary drum screen 6 through the mounting hole 1202. The weight 1205 rotates with the rotary drum screen 6 under the drive of the connecting rod 1204. The impact force generated by centrifugal force can shake off the adhered aluminum ash, keeping the screen holes unobstructed and further optimizing the screening effect. Example 4
[0032] The problem of aluminum ash easily agglomerating in humid environments leads to a slower speed of passing through drum screens and arched screen plates, thus reducing screening efficiency. (See attached image) Figure 5 As shown, in this embodiment, electric heaters 16 are respectively installed on both side walls of the housing 2, and the electric heaters 16 are located above the second discharge port 5. The electric heaters 16 are RDB cabinet heaters purchased from Shenzhen Guoweiwei Electric Co., Ltd. They are composed of silicone rubber heating elements and aluminum plates, exhibiting excellent insulation performance, with an insulation resistance of 5MΩ in water, capable of withstanding a breakdown voltage of 2000V, and possessing good moisture resistance and a long service life. When the screening equipment is operating during the rainy season, the electric heaters 16 are activated, and the temperature inside the housing 2 is adjusted using the matching temperature controller. This raises the temperature of the material by 5-10℃ when it falls from the drum screen 6 onto the arched screen plate 7, thus reducing the stickiness of the aluminum ash and preventing clumping.
[0033] The foregoing has shown and described the main features and advantages of this utility model. It will be apparent to those skilled in the art that the specific embodiments of this utility model are not limited to the details of the exemplary embodiments described above. Furthermore, without departing from the spirit or essential characteristics of this utility model, the inventive concept and design ideas of this utility model can be implemented in other specific forms, and these should be equivalently included within the protection scope disclosed in the technical solution of this utility model. Therefore, in all respects, the embodiments should be considered exemplary and non-limiting. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included within this utility model.
[0034] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A screening and collecting device for calcined aluminum ash, comprising a frame (1) and a housing (2), wherein the housing (2) is mounted on the frame (1), and an inlet (3) and a first outlet (4) are respectively provided at the top and bottom of the housing (2), characterized in that: A second discharge port (5) is provided on each of the two side walls of the box (2). A drum screen (6) and an arched screen plate (7) are provided inside the box (2). The arched screen plate (7) is located below the drum screen (6) and its two ends are smoothly connected to the connection of the second discharge port (5). The diameter of the drum screen (6) is larger than that of the arched screen plate (7) and it is driven to rotate by a motor (8).
2. The screening and collection device for calcined aluminum ash materials according to claim 1, characterized in that: Inside the box (2), there are two receiving plates (9) fixed. The two receiving plates (9) are arranged in a funnel shape, and both of them have gaps with the surface of the drum screen (6).
3. The screening and collection device for calcined aluminum ash materials according to claim 1, characterized in that: Two baffles (10) are fixed inside the box (2). The two baffles (10) are located at the two end faces of the drum screen (6) respectively and are not connected to each other.
4. A screening and collecting device for calcined aluminum ash materials according to any one of claims 1 to 3, characterized in that: The two ends of the central rotating shaft of the drum screen (6) are rotatably connected to the two side walls of the box (2), and one end is connected to the output shaft of the motor (8) through the pulley (13). The motor (8) is installed at the bottom of the box (2).
5. The screening and collection device for calcined aluminum ash materials according to claim 4, characterized in that: The box (2) is connected to the frame (1) by two sets of spring shock absorbers (11). The two sets of spring shock absorbers (11) are respectively arranged on the bottom of the box (2) and on its upper side wall. Each set of spring shock absorbers (11) includes four and is distributed at the four corners of the box (2). Multiple sets of pendulum mechanisms (12) are arranged side by side on the central rotating shaft of the drum screen (6). Under the buffering effect of the spring shock absorbers (11), the pendulum mechanism (12) uses the centrifugal force generated when the drum screen (6) rotates to vibrate the aluminum ash adhering to its screen surface.
6. The screening and collection device for calcined aluminum ash materials according to claim 5, characterized in that: Ear holes (15) are fixedly connected to the bottom and top four corners of the housing (2) respectively, for fixing the spring shock absorber (11).
7. The screening and collection device for calcined aluminum ash materials according to claim 6, characterized in that: Each spring shock absorber (11) consists of a spring (1101), a support (1102), a connecting screw (1103), and a nut (1104). The connecting screw (1103) is fixed to the frame (1) by the support (1102). The spring (1101) is sleeved on the connecting screw (1103). The end of the connecting screw (1103) passes through the ear hole seat (15) of the housing (2) and is fixedly connected by the nut (1104).
8. A screening and collection device for calcined aluminum ash materials according to claim 5, characterized in that: The pendulum mechanism (12) includes a fixed plate (1201) and a mounting hole (1202) at its center. Limiting grooves (1203) are provided at the four corners of the fixed plate (1201). A connecting rod (1204) is rotatably connected in the limiting groove (1203). A weight (1205) is fixed at the end of the connecting rod (1204).
9. A screening and collecting device for calcined aluminum ash material according to any one of claims 5 to 8, characterized in that: A protective cover (14) is provided on the frame (1) to protect the pulley (13).
10. A screening and collecting device for calcined aluminum ash materials according to claim 9, characterized in that: Electric heaters (16) are respectively installed on the two side walls of the box (2), and the electric heaters (16) are located above the second discharge port (5).