Smelting furnace and furnace top structure

Abstract

The utility model belongs to the technical field of smelting furnaces, and discloses a furnace top structure of a smelting furnace, which comprises a furnace top with an arch structure, a first cooling pipeline, a second cooling pipeline, an inner cavity arranged in the furnace top and used for filling, connecting parts arranged at two ends of a furnace body and used for being lapped on an external furnace body, and a partition plate, the partition plate is connected into the inner cavity and divides the inner cavity into an upper-layer cavity and a lower-layer cavity, the first cooling pipeline is arranged in the upper-layer cavity, the second cooling pipeline is arranged in the lower-layer cavity, and the first cooling pipeline and the second cooling pipeline are both connected with external cooling water circulation equipment. The inner cavity is divided into the upper-layer cavity and the lower-layer cavity through the partition plate, the first cooling pipeline and the second cooling pipeline are arranged in the upper-layer cavity and the lower-layer cavity correspondingly, the two-layer cooling effect can be provided in the using process, heat in the furnace is prevented from being transmitted to the external environment, and when the lower-layer cavity is burnt out, the cooling effect is good. The upper-layer cavity can still maintain the furnace top to work, so that the safety is higher.

Description

Technical Field

[0001] This utility model belongs to the field of smelting furnace technology, specifically a smelting furnace and furnace top structure. Background Technology

[0002] The furnace roof of a copper smelting furnace is an important component of the furnace. Its refractory bricks are exposed to a high temperature environment of up to 1600°C for a long time. During this process, various alloying elements in the refractory material will react chemically with oxygen to form various oxides, which will lead to the loss of alloying elements and accelerate the burning of the refractory bricks.

[0003] CN222257675U discloses a furnace top structure for a smelting furnace, including a furnace body made of refractory bricks, with an arc-shaped top, and multiple sleeves arranged along the outer periphery of the top of the furnace body; cooling water channels are provided in the sleeves, and the multiple sleeves are arranged side by side on the top of the furnace body to control the temperature of the refractory bricks at the top of the furnace body.

[0004] The above-mentioned technical solution optimizes the structure of the furnace top, minimizing the burning loss of refractory bricks and reducing the loss of alloying elements, thus improving production efficiency and reducing production costs. However, this technical solution only has a single-layer structure, and the furnace top may burn out during operation, causing it to lose its function and affecting smelting efficiency. Utility Model Content

[0005] The purpose of this application is to solve the aforementioned problems and provide a furnace top structure for a smelting furnace. This furnace top structure divides the inner cavity into an upper chamber and a lower chamber using a partition. A first cooling pipe and a second cooling pipe are respectively installed in the upper and lower chambers. During use, this not only provides a two-layer cooling effect, preventing heat transfer from the furnace to the external environment, but also ensures that the upper chamber can continue operating even if the lower chamber burns out, thus enhancing safety. Furthermore, this application also provides a smelting furnace with this furnace top structure.

[0006] To achieve the above objectives, this application provides the following technical solution:

[0007] A furnace top structure for a smelting furnace includes an arched furnace top, a first cooling pipe, and a second cooling pipe. The furnace top has an inner cavity for filling, and the two ends of the furnace body have connecting parts for overlapping with an external furnace body. It also includes a partition plate connected in the inner cavity and dividing the inner cavity into an upper cavity and a lower cavity. The first cooling pipe is arranged in the upper cavity, and the second cooling pipe is arranged in the lower cavity. Both the first cooling pipe and the second cooling pipe are connected to an external cooling water circulation device.

[0008] Preferably, the furnace top includes a frame, and a through groove is provided inside the frame. The through groove is an inner cavity, and a partition is connected inside the through groove.

[0009] Preferably, the top surface of the furnace roof is also provided with multiple hook connection parts for hoisting the furnace roof.

[0010] Preferably, both the first cooling pipe and the second cooling pipe are U-shaped, and the input and output ends of the first cooling pipe and the second cooling pipe are located at the top of the furnace body.

[0011] Preferably, the top and bottom of the partition are provided with fasteners for securing the upper and lower cavities.

[0012] Preferably, the fastener has a Y-shaped structure.

[0013] In addition, this application also provides a smelting furnace, including a furnace body and a furnace top structure connected to the furnace body.

[0014] Compared with the prior art, the beneficial effects of this application are:

[0015] This application uses a partition to separate the inner cavity into an upper cavity and a lower cavity, and a first cooling pipe and a second cooling pipe are respectively provided in the upper cavity and the lower cavity. In use, it can not only provide a cooling effect of two layers to prevent the heat inside the furnace from being transferred to the external environment, but also ensure that the upper cavity can still maintain the operation of the furnace top when the lower cavity is burned, thus improving safety. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of the furnace top structure in Example 1;

[0017] Figure 2 This is a top view schematic diagram of the furnace top structure of Example 1;

[0018] Figure 3 It is the smelting furnace of Example 2;

[0019] The labels for each item are as follows:

[0020] Furnace top 1; First cooling pipe 2; Second cooling pipe 3; Baffle 4; Furnace body 5; Inner cavity 11; Frame 12; Hook connection part 13; Connection part 14; Fastener 41; Upper cavity 111; Lower cavity 112. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0022] Example 1

[0023] refer to Figures 1-2 A furnace top structure for a smelting furnace includes an arched furnace top 1, a first cooling pipe 2, and a second cooling pipe 3. The furnace top 1 has an inner cavity 11 for filling. The furnace body 5 has connecting parts 14 at both ends for overlapping with the external furnace body 5. It also includes a partition 4 connected in the inner cavity 11 and dividing the inner cavity 11 into an upper cavity 111 and a lower cavity 112. The first cooling pipe 2 is arranged in the upper cavity 111, and the second cooling pipe 3 is arranged in the lower cavity 112. Both the first cooling pipe 2 and the second cooling pipe 3 are connected to an external cooling water circulation device.

[0024] In this design, the external cooling water circulation equipment circulates cooling water into the first cooling pipe 2 and the second cooling pipe 3 respectively. The packing can transfer heat to the furnace body 5 and exchange heat through the first cooling pipe 2 and the second cooling pipe 3, preventing heat from being transferred to the outside. In this way, the partition 4 divides the inner cavity 11 into an upper cavity 111 and a lower cavity 112, and the first cooling pipe 2 and the second cooling pipe 3 are respectively installed in the upper cavity 111 and the lower cavity 112. During use, it can not only provide a two-layer cooling effect to prevent heat from the furnace from being transferred to the external environment, but also ensure that the upper cavity 111 can still maintain the operation of the furnace top 1 even if the lower cavity 112 is burned out, thus improving safety.

[0025] In this embodiment, the furnace top 1 includes a frame 12, and a through groove is provided inside the frame 12. The through groove is an inner cavity 11, and the partition plate 4 is connected inside the through groove. In this design, the upper part of the partition plate 4 and the frame 12 forms an upper cavity 111; the lower part of the partition plate 4 and the frame 12 forms a lower cavity 112. When filling, if the upper cavity 111 is filled first, the filling material in the upper cavity 111 will solidify before the filling material in the lower cavity 112 is filled.

[0026] In this embodiment, the top surface of the furnace top 1 is also provided with a plurality of hook connection parts 13 for hoisting the furnace top 1. Because the furnace top 1 is too large, by setting the hook connection parts 13, it is convenient for the operator to operate the overhead crane to hoist the furnace top 1 to the top of the furnace body 5.

[0027] Preferably, both the first cooling pipe 2 and the second cooling pipe 3 are U-shaped, with the inlet and outlet ends of the first cooling pipe 2 and the second cooling pipe 3 located at the top of the furnace body 5. The U-shaped structure can provide a longer flow path in a smaller space and increase the residence time of the fluid in the pipe, thereby improving heat exchange efficiency.

[0028] In this embodiment, the top and bottom of the partition 4 are provided with fasteners 41 for securing the upper cavity 111 and the lower cavity 112. Furthermore, the fasteners 41 have a Y-shaped structure.

[0029] In practical use, the forked portion of fastener 41 can embed itself in the packing, firmly gripping the packing and ensuring its stability within the upper cavity 111 and lower cavity 112. (The attached...) Figure 1 The fastener 41 shown is only a portion of the fasteners; there are multiple similar structures in the upper cavity 111 and the lower cavity 112.

[0030] It should be noted that during the manufacturing process, the frame 12 and the partition 4 are welded together first, then the first cooling pipe 2 and the second cooling pipe 3 are arranged, then the fasteners 41 are welded to the top and bottom of the partition 4, and finally the upper cavity 111 and the lower cavity 112 are filled in sequence.

[0031] Example 2

[0032] refer to Figure 3 A smelting furnace includes a furnace body 5 and a furnace top structure, as described in Example 1, connected to the furnace body 5.

[0033] By adopting the furnace top structure of Embodiment 1, the partition 4 divides the inner cavity 11 into an upper cavity 111 and a lower cavity 112. A first cooling pipe 2 and a second cooling pipe 3 are respectively provided in the upper cavity 111 and the lower cavity 112. In use, it can not only provide a cooling effect of two layers to prevent the heat in the furnace from being transferred to the external environment, but also ensure that the upper cavity 111 can still maintain the operation of the furnace top 1 when the lower cavity 112 is burned out, thus improving safety.

[0034] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements or modifications can be made without departing from the principle of this application, and these improvements or modifications should also be considered within the scope of protection of this application.

Claims

1. A furnace roof structure for a smelting furnace, comprising an arched furnace roof, a first cooling pipe, and a second cooling pipe, wherein the furnace roof has an inner cavity for filling, and both ends of the furnace body have connecting portions for overlapping with an external furnace body, characterized in that, It also includes a partition, which is connected in the inner cavity and divides the inner cavity into an upper cavity and a lower cavity. The first cooling pipe is arranged in the upper cavity and the second cooling pipe is arranged in the lower cavity. Both the first cooling pipe and the second cooling pipe are connected to an external cooling water circulation device.

2. The furnace roof structure according to claim 1, characterized in that, The furnace top includes a frame, and a through groove is provided inside the frame. The through groove is the inner cavity, and the partition is connected inside the through groove.

3. The furnace roof structure according to claim 1, characterized in that, The top surface of the furnace roof is also equipped with multiple hooks for hoisting the furnace roof.

4. The furnace roof structure according to claim 1, characterized in that, Both the first cooling pipe and the second cooling pipe are U-shaped, and the input and output ends of the first cooling pipe and the second cooling pipe are located at the top of the furnace body.

5. The furnace roof structure according to claim 1, characterized in that, The top and bottom of the partition are provided with multiple fasteners for securing the upper and lower cavities.

6. The furnace roof structure according to claim 5, characterized in that, The fastener has a Y-shaped structure.

7. A smelting furnace, characterized in that, It includes a furnace body and a furnace top structure connected to the furnace body as described in any one of claims 1 to 6 for a smelting furnace.

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