Side wall structure of molten pool of aluminum melting furnace

Abstract

The utility model relates to the technical field of molten pools of aluminum melting furnaces, in particular to a side wall structure of a molten pool of an aluminum melting furnace, which comprises a shell and an operation layer, a heat preservation module is arranged between the shell and the operation layer, the operation layer comprises prefabricated parts, a filling gap is arranged between two adjacent prefabricated parts, and castable is arranged in the filling gap. The operation layer is formed through the prefabricated parts and the castable, and compared with an existing skip construction method, the construction method has the advantages that the construction of the operation layer can be rapidly completed, meanwhile, the number of erected formworks is reduced, the construction operation steps are simplified, and the operation efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a molten aluminum furnace molten pool technical field, concretely relates to a kind of side wall structure of molten aluminum furnace molten pool. BACKGROUND

[0002] Molten aluminum furnace is the important thermal equipment for producing high-purity aluminum or aluminum alloy after melting aluminum ingot or waste aluminum, and the lining refractory material is easily subjected to physical and chemical effects such as aluminum liquid scouring, mechanical wear, penetration and vapor erosion, which directly affects the service life of molten aluminum furnace equipment.

[0003] The lining refractory material of molten aluminum furnace is a multi-layer masonry structure, and the thickness of the molten pool side wall is generally 400-650 mm. The working layer usually uses refractory bricks and castable. When the working layer of the molten pool is masonry with refractory bricks, the size of the refractory bricks is small, the brick joints are more, and the overall strength is not high. The penetration ability of high-temperature aluminum liquid is strong, and it is usually necessary to select and grind the refractory bricks during masonry, strictly control the brick joints, and the masonry difficulty is high. At the same time, the anti-seepage layer also needs to be supported and poured, and the construction period is long. When the working layer and the anti-seepage layer of the molten pool are masonry with refractory castable, the construction method of jumping warehouse is adopted, and the formwork needs to be set up, the castable needs to be waited to solidify, and the formwork needs to be removed. The construction is complicated, the masonry period is long, the refractory lining is thick, the heat transfer is slow, the furnace heating period is also long, and the risk of furnace heating cracking is high. CONTENT OF THE UTILITY MODEL

[0004] In order to solve the above problems, the utility model embodiment provides a new structure which can shorten the masonry period of the molten aluminum furnace molten pool side wall, simplifies the construction steps, and improves the masonry efficiency.

[0005] In order to achieve the above purpose, the utility model embodiment specifically adopts the following technical scheme: a side wall structure of a molten aluminum furnace molten pool, which comprises a shell and a working layer, a heat preservation module is arranged between the shell and the working layer, the working layer comprises a prefabricated part, a filling gap is arranged between two adjacent prefabricated parts, and castable is arranged in the filling gap.

[0006] As a further improvement of the above technical scheme:

[0007] The prefabricated part comprises an arc-shaped base body, a curved air slot one is arranged at both ends of the arc-shaped base body, and a curved air slot two is arranged on the side wall.

[0008] The curved air slot one is Z-shaped, and the curved air slot two is trapezoidal and gradually increases in width from bottom to top.

[0009] The heat preservation module comprises a heat insulation layer, a heat preservation layer and an anti-seepage layer, and the anti-seepage layer is located between the heat preservation layer and the working layer.

[0010] The anti-seepage layer comprises a plurality of pouring areas which are sequentially distributed along the circumferential direction of the shell, and a trapezoidal construction joint is arranged between two adjacent pouring areas.

[0011] The trapezoidal construction joints and filling gaps are distributed alternately.

[0012] The thickness of the impermeable layer is ≥80mm.

[0013] The volume of the prefabricated component is greater than 1 / 2 of the total volume of the working layer.

[0014] The beneficial effects of this utility model embodiment are as follows: The side wall structure of the aluminum melting furnace pool includes a shell and a working layer. An insulation module is provided between the shell and the working layer. The working layer includes precast components. A filling gap is provided between two adjacent precast components. Castable material is provided in the filling gap. The working layer is formed by the precast components and the castable material. Compared with the existing skip-chamber construction method, the construction of the working layer can be completed quickly. At the same time, the number of formwork supports is reduced, the construction operation steps are simplified, and the operation efficiency is improved. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a partially enlarged schematic diagram of the mechanism in this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the prefabricated component in this utility model;

[0018] Figure 4 This is a front view of the structure of the prefabricated component of this utility model;

[0019] Figure 5 This is a side view of the prefabricated component in this utility model.

[0020] In the diagram: 1. Shell; 2. Working layer; 3. Precast component; 4. Filling gap; 5. Castable refractory; 6. Arc-shaped base; 7. Wind trough one; 8. Wind trough two; 9. Insulation layer; 10. Seepage-proof layer; 11. Pouring area; 12. Trapezoidal construction joint; 13. Thermal insulation layer. Detailed Implementation

[0021] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0022] like Figures 1-5As shown, the side wall structure of the molten aluminum furnace pool of the embodiment comprises a shell 1 and a working layer 2, and a heat preservation module is arranged between the shell 1 and the working layer 2, the working layer 2 comprises prefabricated parts 3, a filling gap 4 is arranged between two adjacent prefabricated parts 3, and castable 5 is arranged in the filling gap 4, the working layer 2 is formed by the prefabricated parts 3 and the castable 5, compared with the existing skip construction method, the masonry of the working layer 2 can be quickly completed, the number of formwork setting is reduced, the construction operation steps are simplified, and the operation efficiency is improved.

[0023] The prefabricated part 3 comprises an arc-shaped base body 6, a curved air channel one 7 is arranged at two ends of the arc-shaped base body 6, and a curved air channel two 8 is arranged on the side wall, the curved air channel one 7 is in a Z shape, and the curved air channel two 8 is in a trapezoidal shape and gradually increases in width from bottom to top.

[0024] The heat preservation module comprises a heat insulation layer 13, a heat preservation layer 9 and an anti-seepage layer 10, the anti-seepage layer 10 is located between the heat preservation layer 9 and the working layer 2, the heat insulation layer 13 adopts a nano heat preservation plate or a fiber heat preservation plate or a calcium silicate plate, the thickness is 20-100 mm, the heat preservation layer 9 adopts a light heat preservation brick or a light heat preservation castable, the thickness is 60-120 mm, the anti-seepage layer 10 is formed by pouring, when the heat insulation layer 13 and the heat preservation layer 9 are sequentially built on the inner side of the shell 1, the space of the anti-seepage layer 10 is reserved, and then the working layer 2 is made, when the working layer 2 is made, the prefabricated part 3 is placed first, then the formwork is set between the two prefabricated parts 3, and the castable 5 is filled, after the working layer 2 is made, the pouring operation of the anti-seepage layer 10 is performed, at this time, the formwork setting and formwork removal are not required, the overall construction time can be saved, the use amount of the lining castable can be reduced by using the prefabricated part 3, the drainage amount of the lining during baking is reduced, the risk of explosion during baking is reduced, and the baking time is shortened.

[0025] The anti-seepage layer 10 comprises a plurality of pouring areas 11 which are sequentially distributed along the circumferential direction of the shell 1, and a trapezoidal construction joint 12 is arranged between two adjacent pouring areas 11.

[0026] The trapezoidal construction joint 12 and the filling gap 4 are staggered.

[0027] The thickness of the anti-seepage layer 10 is greater than or equal to 80 mm.

[0028] The volume of the prefabricated part 3 is greater than 1 / 2 of the volume of the entire working layer 2.

[0029] It should be noted that in the description of the utility model, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and other terms indicating direction or positional relationship are based on the direction or positional relationship shown in the drawings, which is merely for the convenience of description, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0030] In addition, it should also be noted that in the description of the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be broadly understood, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication between two elements inside. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0031] The term "includes" or any other similar term is intended to cover non-exclusive inclusion, so that the process, article or equipment / device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes the elements inherent in the process, article or equipment / device.

[0032] So far, the technical scheme of the utility model has been described in combination with the preferred embodiments shown in the drawings, but those skilled in the art can easily understand that the protection scope of the utility model is obviously not limited to these specific embodiments. Without deviating from the principles of the utility model, those skilled in the art can make equivalent changes or replacements to related technical features, and the technical scheme after the changes or replacements will fall within the protection scope of the utility model.

Claims

1. A sidewall structure of a molten aluminium furnace bath, comprising a shell (1) and a working layer (2), characterised in that: The heat preservation module is arranged between the shell (1) and the working layer (2), the working layer (2) comprises prefabricated parts (3), filling gaps (4) are arranged between two adjacent prefabricated parts (3), and castables (5) are arranged in the filling gaps (4).

2. The sidewall construction of an aluminum smelting furnace bath according to claim 1, characterized in that: The prefabricated part (3) comprises an arc-shaped base body (6), curve grooves (7) are arranged at two ends of the arc-shaped base body (6), and curve grooves (8) are arranged on the side wall.

3. The sidewall construction of an aluminum smelting furnace bath according to claim 2, characterized in that: The curve groove (7) is in Z shape, the curve groove (8) is in trapezoidal shape and gradually increases in width from bottom to top.

4. The sidewall construction of an aluminum smelting furnace bath according to claim 1, characterized in that: The heat preservation module comprises a heat insulation layer (13), a heat preservation layer (9) and an anti-seepage layer (10), and the anti-seepage layer (10) is located between the heat preservation layer (9) and the working layer (2).

5. The sidewall construction of an aluminum smelting furnace bath according to claim 4, characterized in that: The anti-seepage layer (10) comprises a plurality of pouring areas (11) sequentially distributed along the circumferential direction of the shell (1), and trapezoidal construction joints (12) are arranged between two adjacent pouring areas (11).

6. The sidewall construction of an aluminum smelting furnace bath according to claim 5, characterized in that: The trapezoidal construction joints (12) are staggered with the filling gaps (4).

7. The sidewall construction of an aluminum smelting furnace bath according to claim 5, characterized in that: The thickness of the anti-seepage layer (10) is greater than or equal to 80 mm.

8. The sidewall construction of an aluminum smelting furnace bath according to claim 1, characterized in that: The volume of the prefabricated part (3) is greater than 1 / 2 of the volume of the whole working layer (2).

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