A slag-rich furnace refractory lining structure

Abstract

The utility model relates to rich residue stove refractory furnace lining technical field especially a kind of rich residue stove refractory furnace lining structure, including several support steel bars, several support steel bars are all fixedly connected to the inner wall of shell, the inner wall of shell is fixedly connected with rib casting mechanism, several support steel bars are all through rib casting mechanism, the inner wall of shell is fixedly connected with refractory casting layer, refractory casting layer connects support steel bar, and rib casting mechanism and support steel bar are covered by refractory casting layer.The utility model connects refractory casting layer by rib casting mechanism and support steel bar, improves the connecting effect between shell and refractory casting layer, and the adsorption of refractory casting layer on shell is good, and the impact resistance is strong, and furnace lining is high, more durable, refractory casting layer has good thermal conductivity under high temperature, can evenly share heat, improve the uniformity of hearth temperature distribution, to enhance production capacity.

Description

Technical Field

[0001] This utility model relates to the field of refractory lining technology for rich slag furnaces, and in particular to a refractory lining structure for rich slag furnaces. Background Technology

[0002] The lining of a rich slag furnace is directly related to the furnace's efficiency, lifespan, and safety. Its main function is to protect the furnace shell steel structure from burning and deformation, and to reduce the loss of heat from the furnace to the outside, thereby maintaining a high-temperature smelting environment. The lining is usually designed according to the chemical properties of different slags, operating temperature, wear mechanism, thermal shock frequency, and other factors in its working environment.

[0003] Currently, the main technologies used in the production of manganese-rich slag both domestically and internationally are external water-cooled refractory brick lining for rich slag furnaces or internal cooling cooling wall rich slag furnaces. Domestically produced rich slag furnaces mainly use external water-cooled refractory brick lining, while the cost of using refractory bricks inside the furnace shell is high. The refractory bricks absorb heat unevenly at high temperatures, resulting in uneven temperature distribution in the furnace chamber, causing unstable furnace conditions and affecting production efficiency and equipment lifespan. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies where refractory bricks absorb heat unevenly at high temperatures, leading to uneven furnace temperature distribution, unstable furnace conditions, and reduced production efficiency and equipment lifespan. This invention proposes a refractory lining structure for rich slag furnaces.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A refractory lining structure for a rich slag furnace is designed, comprising several supporting steel columns, all of which are fixedly connected to the inner wall of the shell. A rib casting mechanism is fixedly connected to the inner wall of the shell, and the supporting steel columns pass through the rib casting mechanism. A refractory casting layer is fixedly connected to the inner wall of the shell, and the refractory casting layer connects to the supporting steel columns, covering the rib casting mechanism and the supporting steel columns.

[0006] Preferably, the rib casting mechanism includes a plurality of transverse casting ribs, all of which are fixedly connected to the inner wall of the shell, and a plurality of longitudinal casting ribs are fixedly connected to the inner wall of the shell, with the plurality of longitudinal casting ribs and the plurality of transverse casting ribs being distributed alternately.

[0007] Preferably, the refractory casting layer is provided with a refractory inner lining mesh, and the refractory inner lining mesh is fixedly connected to the supporting steel column.

[0008] Preferably, the refractory inner lining mesh is located between one-third and two-thirds of the thickness of the refractory cast layer.

[0009] Preferably, the thickness of the refractory cast-in-place layer is greater than the length of the supporting steel column.

[0010] Preferably, the refractory casting layer is made of high-strength clay-based castable.

[0011] The beneficial effects of the refractory lining structure for a rich slag furnace proposed in this utility model are as follows: The refractory lining is connected to the supporting steel columns via a rib casting mechanism, improving the connection between the shell and the refractory lining. The refractory lining exhibits good adhesion to the shell, strong impact resistance, high furnace lining strength, and greater durability. Furthermore, the refractory lining possesses excellent thermal conductivity at high temperatures, enabling even heat distribution and improving the uniformity of furnace temperature distribution, thereby increasing production capacity. Compared to refractory brick structures, the refractory lining optimizes furnace wall thickness, thus increasing furnace volume. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of a refractory lining for a rich slag furnace proposed in this utility model; Figure 2 This is a cross-sectional structural schematic diagram of a refractory lining structure for a rich slag furnace proposed in this utility model. Figure 3 for Figure 2 A magnified schematic diagram of the structure at point A above.

[0013] In the diagram: 1. Shell; 2. Rib casting mechanism; 3. Supporting steel column; 4. Refractory casting layer; 5. Refractory inner lining mesh; 21. Transverse casting reinforcement; 22. Longitudinal casting reinforcement. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0015] Example 1: Refer to Figure 1-3 A refractory lining structure for a rich slag furnace includes several supporting steel bars 3, all of which are fixedly connected to the inner wall of a shell 1. A rib casting mechanism 2 is fixedly connected to the inner wall of the shell 1, and the supporting steel bars 3 pass through the rib casting mechanism 2. A refractory casting layer 4 is fixedly connected to the inner wall of the shell 1, and the refractory casting layer 4 connects to the supporting steel bars 3. The thickness of the refractory casting layer 4 is greater than the length of the supporting steel bars 3. The refractory casting layer 4 covers the rib casting mechanism 2 and the supporting steel bars 3. A refractory inner lining mesh 5 is provided inside the refractory casting layer 4, and the refractory inner lining mesh 5 is fixedly connected to the supporting steel bars 3. The refractory inner lining mesh 5 is located between one-third and two-thirds of the thickness of the refractory casting layer 4.

[0016] Work process: The inner wall of the shell 1 is connected to the supporting steel column 3 via the rib casting mechanism 2 to form a refractory casting layer 4, which improves the connection between the shell 1 and the refractory casting layer 4. The refractory casting layer 4 has good adsorption on the shell 1, strong impact resistance, high furnace lining strength and greater durability. The refractory casting layer 4 has good thermal conductivity at high temperatures, which can evenly distribute heat and improve the uniformity of furnace temperature distribution, thereby increasing production capacity. Furthermore, the refractory casting layer 4 has low manufacturing and maintenance costs, which can significantly reduce the operating costs of the furnace body. The production process of the refractory casting layer 4 is clean and meets environmental protection requirements.

[0017] Example 2: Refer to Figure 2-3 As another preferred embodiment of this utility model, the difference from embodiment 1 is that the rib casting mechanism 2 includes a number of transverse casting ribs 21, all of which are fixedly connected to the inner wall of the shell 1. A number of longitudinal casting ribs 22 are fixedly connected to the inner wall of the shell 1. The number of longitudinal casting ribs 22 and the number of transverse casting ribs 21 are staggered. The number of longitudinal casting ribs 22 and the number of transverse casting ribs 21 enhance the connection effect between the shell 1 and the refractory casting layer 4, thereby improving the impact resistance.

[0018] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A refractory lining structure for a rich slag furnace, comprising a plurality of supporting steel bars (3), wherein the plurality of supporting steel bars (3) are all fixedly connected to the inner wall of a shell (1), characterized in that, in: A rib casting mechanism (2) is fixedly connected to the inner wall of the shell (1). Several of the supporting steel bars (3) pass through the rib casting mechanism (2). A refractory casting layer (4) is fixedly connected to the inner wall of the shell (1). The refractory casting layer (4) connects to the supporting steel bars (3). The refractory casting layer (4) covers the rib casting mechanism (2) and the supporting steel bars (3).

2. The refractory lining structure for a rich slag furnace according to claim 1, characterized in that, The rib casting mechanism (2) includes several transverse casting ribs (21), which are fixedly connected to the inner wall of the shell (1). Several longitudinal casting ribs (22) are fixedly connected to the inner wall of the shell (1), and the longitudinal casting ribs (22) and the transverse casting ribs (21) are staggered.

3. The refractory lining structure for a rich slag furnace according to claim 1, characterized in that, The refractory casting layer (4) is provided with a refractory inner lining mesh (5), and the refractory inner lining mesh (5) is fixedly connected to the supporting steel column (3).

4. The refractory lining structure for a rich slag furnace according to claim 3, characterized in that, The refractory inner lining mesh (5) is located between one-third and two-thirds of the thickness of the refractory cast layer (4).

5. The refractory lining structure for a rich slag furnace according to claim 1, characterized in that, The thickness of the refractory cast-in-place layer (4) is greater than the length of the supporting steel column (3).

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