Alumina silo filler structure

Abstract

The utility model discloses an alumina storehouse bottom filler structure, including silo, the inside of silo is equipped with storehouse bottom, the center of storehouse bottom is equipped with the discharge gate, is equipped with the bucket shape and is integrated filler structure of pouring on storehouse bottom, the bucket shape and is integrated filler structure of pouring includes several lightweight high -strength concrete block, mortar and reinforced concrete surface layer, several lightweight high -strength concrete block is laid on the storehouse bottom in the bucket shape, the mortar is filled in several lightweight high -strength concrete block, and the reinforced concrete surface layer covers the upper surface of lightweight high -strength concrete block and mortar. The structure composition of this application is clear and explicit, and the structural system is simple and reasonable, and the stress is stable, and the filler angle can be adjusted according to the alumina discharging requirement, and the production process demand is satisfied. Can realize helping the uniform discharging of alumina respectively, reduces the uneven discharging and causes the uneven stress condition of the storehouse body such as partial storehouse of making the storehouse body stress uneven, or reduces the effect of production cost.

Description

Technical Field

[0001] This utility model relates to the field of alumina silo technology, specifically to an alumina silo bottom packing structure. Background Technology

[0002] Large alumina silos used in alumina production processes are all flat-bottomed silos, with discharge primarily relying on gravity flow from the bottom. However, due to their flat bottom structure, these silos cannot completely empty, resulting in large dead zones. This prolonged accumulation of material leads to product waste and negatively impacts the company's economic efficiency. To eliminate these dead zones, a common practice is to install packing material at the bottom of the silo to create a steeply angled conical hopper structure, meeting the requirements for gravity-flow alumina discharge and ensuring efficient discharge.

[0003] Traditional silo bottom filling materials typically use cast-in-place lightweight concrete (such as cinder concrete and ceramsite concrete). While this meets current design requirements, it presents numerous challenges for owners and construction companies. Firstly, lightweight concrete is difficult to procure and its overall price is high. Secondly, the large-volume lightweight concrete pouring is challenging during construction. Because the silo bottom filling material is a steeply inclined conical hopper, material leakage and segregation are prone to occur during pouring. Furthermore, layered pouring involves long construction periods and difficulties in controlling construction quality. Utility Model Content

[0004] The purpose of this invention is to provide an alumina silo bottom packing structure that solves the requirement for lightweight silo bottom packing, resulting in more significant economic and environmental benefits.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an alumina silo bottom filling structure, including a silo, the interior of which is provided with a silo bottom, a discharge port is provided at the center of the silo bottom, and a bucket-shaped integrated filling structure is provided on the silo bottom.

[0006] Preferably, the bucket-shaped integrated filling structure includes several lightweight high-strength concrete blocks, mortar, and a reinforced concrete surface layer. The lightweight high-strength concrete blocks are laid in a bucket shape on the bottom of the silo, the mortar is filled between the lightweight high-strength concrete blocks, and the reinforced concrete surface layer covers the upper surface of the lightweight high-strength concrete blocks and the mortar.

[0007] Preferably, the filling angle of the hopper-shaped integrated filling structure is 35°~60°, and the filling height is 8050mm.

[0008] Preferably, the inner diameter of the silo is 25m.

[0009] Preferably, the discharge port is bucket-shaped; and the upper opening diameter of the discharge port is 2000mm, and the lower opening diameter of the discharge port is 500mm.

[0010] Preferably, the lightweight high-strength concrete block is an autoclaved aerated concrete block of grade A5.0 or higher; the density of the lightweight high-strength concrete block is ≤7.5kN / m³. 3 .

[0011] Preferably, the mortar used is a special mortar for aerated concrete of grade Ma7.5 or above.

[0012] Preferably, the thickness of the reinforced concrete surface layer is 200mm, and the reinforced concrete surface layer is reinforced with a double-layer bidirectional steel mesh of Ф8×200.

[0013] Preferably, the high-strength concrete blocks are divided into four equal areas and laid flat in a staggered manner with a 45-degree angle to the axis.

[0014] Preferably, several of the high-strength concrete blocks are constructed using a concentric circle method centered on the unloading port, layer by layer, to form a conical hopper shape.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] Compared to traditional lightweight concrete fillers, prefabricated autoclaved aerated concrete (AAC) blocks can be directly transported to the site for construction. This construction method not only saves time but also reduces the need for formwork and other construction materials during large-volume concrete pouring, while also minimizing environmental impact. It can also help ensure uniform alumina distribution, reducing uneven stress on the silo caused by uneven distribution, or reduce production costs.

[0017] Lightweight, high-strength concrete blocks, such as autoclaved aerated concrete blocks, are used. This material is made from industrial waste and is a perfect example of turning waste into usable building materials, with significant environmental benefits.

[0018] Compared to traditional lightweight concrete fillers (such as C15 cinder concrete, with a density of 12 kN / m³), 3 ), with 2400 m³ of alumina bin packing material per 25m diameter. 3 For example, this application will directly reduce the weight of the packing by about 1080t, effectively reducing the self-weight of the alumina silo structure, further realizing the requirement of lightweight packing at the bottom of the silo, thereby optimizing the foundation bearing capacity.

[0019] Compared to traditional lightweight concrete filler structures, the lightweight high-strength concrete blocks used in this application can reduce material costs by approximately 200 yuan / m². 3 (Lightweight concrete costs approximately 400 yuan / m²)3 Autoclaved aerated concrete blocks cost approximately 200 yuan / m² 3 ), with 2400 m of alumina silo bottom packing material with a single 25m diameter. 3 For example, it directly saves 480,000 yuan in construction investment, which has high economic benefits.

[0020] The structure of this application is clear and well-defined, the structural system is simple and reasonable, the stress is stable, and the filler angle can be adjusted according to the alumina feeding requirements to meet the production process needs. It can replace the traditional lightweight concrete filler structure. Attached Figure Description

[0021] Figure 1 This is a cross-sectional view of the alumina silo bottom packing structure of this utility model.

[0022] Figure 2 This is a top view of the reinforced concrete surface layer of this utility model.

[0023] Figure 3 This is a top view of the masonry structure of the alumina silo bottom packing of this utility model.

[0024] Figure 4 This is a top view of the alumina silo bottom packing structure masonry according to another embodiment of the present invention.

[0025] 1. Lightweight high-strength concrete blocks; 2. Mortar; 3. Reinforced concrete surface layer; 4. Silo; 5. Silo bottom; 6. Discharge port. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-3 This utility model provides a technical solution: an alumina silo bottom packing structure, including a silo 4 with an inner diameter of 25 mm. The silo 4 has a bottom 5 inside, and a discharge port 6 is located at the center of the bottom 5. The discharge port 6 is bucket-shaped, with an upper opening diameter of 2000 mm and a lower opening diameter of 500 mm.

[0028] The silo bottom 5 is equipped with a bucket-shaped integrated filling structure. The filling angle of the bucket-shaped integrated filling structure is 35°~60°, which meets the process requirements of most alumina silos for self-flowing alumina. The filling height is 8050mm. The bucket-shaped integrated filling structure includes several lightweight high-strength concrete blocks 1, mortar 2, and a reinforced concrete surface layer 3. Several lightweight high-strength concrete blocks 1 are laid in a bucket shape on the silo bottom 5. The mortar 2 fills the spaces between the lightweight high-strength concrete blocks 1. The reinforced concrete surface layer 3 covers the upper surface of the lightweight high-strength concrete blocks 1 and the mortar 2.

[0029] The hopper-shaped integrated filling structure is arranged directly above the center of the discharge port 6. The discharge port 6, when used in conjunction with the pneumatic device inside the silo, ensures smooth discharge of the alumina silo, thereby preventing material caking, poor discharge, or even blockage.

[0030] The lightweight high-strength concrete block 1 is specifically an A5.0 grade or higher autoclaved aerated concrete block with a density ≤7.5kN / m³. 3 Mortar 2 is constructed using Ma7.5 grade or higher aerated concrete mortar. The reinforced concrete surface layer 3 is 200mm thick, and is reinforced with a Ф8×200 double-layer bidirectional steel mesh, with a steel reinforcement protective layer thickness of 50mm.

[0031] Several high-strength concrete blocks 1 are divided into four equal areas and laid flat using a staggered joint method forming a 45-degree angle with the axis. The high-strength concrete blocks 1 using this stacking method have a lower manufacturing cost.

[0032] Please see Figure 4 This utility model also provides another technical solution, which differs from the above-mentioned technical solution in that: the high-strength concrete blocks 1 are constructed in a concentric circle pattern centered on the discharge port 6, and are constructed layer by layer according to the filling angle to form a conical hopper prototype. This helps to uniformly distribute alumina and prevents uneven stress on the hopper body caused by uneven material distribution.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. A structure for bottom packing of an alumina silo, characterized in that: Includes a silo (4), the interior of which is provided with a silo bottom (5), a discharge port (6) is provided at the center of the silo bottom (5), and a bucket-shaped integrated filling structure is provided on the silo bottom (5).

2. The alumina silo bottom packing structure according to claim 1, characterized in that: The bucket-shaped integrated filling structure includes several lightweight high-strength concrete blocks (1), mortar (2) and reinforced concrete surface layer (3). Several lightweight high-strength concrete blocks (1) are laid in a bucket shape on the bottom of the silo (5). The mortar (2) is filled between several lightweight high-strength concrete blocks (1). The reinforced concrete surface layer (3) covers the upper surface of the lightweight high-strength concrete blocks (1) and the mortar (2).

3. The alumina silo bottom packing structure according to claim 1, characterized in that: The angle of the hopper-shaped integrated masonry filling structure is 35°~60°, and the filling height is 8050mm.

4. The alumina silo bottom packing structure according to claim 1, characterized in that: The inner diameter of the silo (4) is 25m.

5. The alumina silo bottom packing structure according to claim 1, characterized in that: The discharge port (6) is bucket-shaped; and the upper opening diameter of the discharge port (6) is 2000mm, and the lower opening diameter of the discharge port (6) is 500mm.

6. The alumina silo bottom packing structure according to claim 2, characterized in that: The lightweight high-strength concrete block (1) is specifically an autoclaved aerated concrete block of grade A5.0 or above; the density of the lightweight high-strength concrete block (1) is ≤7.5kN / m³. 3 .

7. The alumina silo bottom packing structure according to claim 2, characterized in that: The mortar (2) is made of Ma7.5 grade or above aerated concrete special mortar.

8. The alumina silo bottom packing structure according to claim 2, characterized in that: The thickness of the reinforced concrete surface layer (3) is 200mm, and the reinforced concrete surface layer (3) is equipped with a double-layer bidirectional steel mesh of Ф8×200.

9. The alumina silo bottom packing structure according to claim 2, characterized in that: Several high-strength concrete blocks (1) are divided into four areas and laid flat in a staggered manner with a 45-degree angle to the axis.

10. The alumina silo bottom packing structure according to claim 2, characterized in that: Several of the high-strength concrete blocks (1) are constructed in a concentric circle method centered on the unloading port (6), layer by layer, to form a cone-shaped hopper.

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