Composite water-cooling furnace wall

Abstract

The utility model discloses a composite water-cooling furnace wall which comprises a furnace bosh, a furnace body and a metal water jacket. The bosh is in the shape of a cylinder with a bottom, the furnace body is in the shape of a bottomless cylinder, and the furnace body stands on the bosh; the metal water jackets are in an arc-shaped brick shape, the metal water jackets are hollow, water inlet pipes and water outlet pipes are arranged on the surfaces of the metal water jackets, and the multiple metal water jackets are spliced into a complete circle-shaped water jacket. The bosh comprises a bosh inner layer and a bosh outer layer which are made of refractory materials, an empty groove consistent with the circular water jacket in shape is formed between the bosh inner layer and the bosh outer layer, the circular water jacket spliced by the metal water jackets is placed in the empty groove, and the water inlet pipe and the water outlet pipe are exposed out of the surface of the bosh; according to the composite water-cooling furnace wall, the metal water jacket is arranged between the furnace bosh inner layer and the furnace bosh outer layer, circulating cooling water is used for cooling the furnace wall, erosion damage of high-temperature melt is reduced, and the service life of the furnace wall is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of metal smelting, in particular to a composite water-cooled furnace wall used for metal smelting. Background Art

[0002] The furnace wall is a component of various smelting furnaces used for metal smelting. The furnace wall of the prior art is built of refractory building materials such as refractory bricks. During metal smelting, there is a large amount of high-temperature molten metal in the furnace. These high-temperature melts continuously erode the lining of the furnace wall, resulting in a short service life of the furnace wall and high maintenance costs for the smelting furnace. Utility Model Content

[0003] The technical problem to be solved by the utility model is that the furnace wall of the smelting furnace in the prior art is corroded by the high-temperature melt in the furnace, the service life of the furnace wall is short, and the maintenance cost of the smelting furnace is high.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a composite water-cooled furnace wall, including a furnace belly, a furnace body and a metal water jacket;

[0005] The furnace belly is in the shape of a cylinder with a bottom, and the furnace body is in the shape of a cylinder without a bottom, and the furnace body stands on the furnace belly;

[0006] The metal water jacket is in the shape of an arc-shaped brick, the interior of the metal water jacket is hollow, a water inlet pipe and a water outlet pipe are arranged on the surface of the metal water jacket, and multiple metal water jackets are assembled into a complete circular water jacket; considering factors such as strength, thermal conductivity, processability and economy, the material of the metal water jacket is generally selected from metal copper;

[0007] The furnace belly comprises a furnace belly inner layer and a furnace belly outer layer made of refractory materials, an empty groove having the same shape as the circular water jacket is arranged between the furnace belly inner layer and the furnace belly outer layer, the circular water jacket composed of metal water jackets is placed in the empty groove, and the water inlet pipe and the water outlet pipe are exposed from the furnace belly surface;

[0008] The inner layer of the furnace belly is made of rebonded magnesia-chrome bricks, and the outer layer of the furnace belly is made of semi-rebonded magnesia-chrome bricks. When the inner layer and the outer layer of the furnace belly are built, a metal water jacket in the shape of arc-shaped bricks is built between the inner layer and the outer layer of the furnace belly. This method will neither affect the overall construction of the furnace wall nor the overall strength of the furnace wall. When performing metal smelting operations, circulating cooling water is introduced into each metal water jacket to reduce the temperature inside the furnace wall, reduce the erosion damage of the high-temperature melt, and increase the service life of the furnace wall.

[0009] Furthermore, the furnace belly also includes a base, which is located below the inner layer and outer layer of the furnace belly, and the base includes multiple layers of fireproof material. The top layer of the base is a magnesium ramming material layer, the second top layer of the base is a high-alumina brick layer, the third layer of the base is a high-alumina ramming material layer, and the bottom layer of the base is a refractory brick layer.

[0010] Specifically, the furnace body includes an inner layer and an outer layer. The inner layer of the furnace body is made of high-aluminum bricks, and the outer layer of the furnace body is made of refractory bricks. After the entire main body of the furnace wall is constructed, the outer surfaces of the hearth and the furnace body are wrapped with asbestos boards as heat insulation layers and protective layers.

[0011] Furthermore, a vertical partition is provided inside the metal water jacket. The partition is supported between the upper panel and the lower panel of the metal water jacket, and the partition forms a zigzag water flow path inside the metal water jacket. The two ends of the water flow path are connected to the water inlet pipe and the water outlet pipe. The partition can make the hollow metal water jacket have stronger compressive performance.

[0012] Beneficial effects: (1) In the composite water-cooled furnace wall of the present invention, a metal water jacket is provided between the inner layer and the outer layer of the hearth, and circulating cooling water is used to cool the furnace wall, reducing the erosion damage of the high-temperature melt and improving the service life of the furnace wall. (2) The metal water jacket in the present invention is in the shape of an arc-shaped brick. The metal water jacket and various refractory bricks are jointly constructed to form the furnace wall, without secondary processing of the purchased refractory bricks. Not only the production cost is low, but also the metal water jacket does not affect the overall strength of the furnace wall. (3) A vertical partition is provided inside the metal water jacket in the present invention. The partition is supported between the upper panel and the lower panel of the hollow metal water jacket, making the metal water jacket inside the furnace wall have sufficient compressive performance. At the same time, the partition forms a zigzag water flow path inside the metal water jacket, making the cooling water have a longer walking path inside the metal water jacket, promoting more sufficient heat exchange between the cooling water and the metal water jacket and the furnace wall. Description of the Drawings

[0013] Figure 1 is a three-dimensional view of the composite water-cooled furnace wall of Embodiment 1.

[0014] Figure 2 is a sectional view of the composite water-cooled furnace wall of Embodiment 1.

[0015] Figure 3 is a three-dimensional view of the metal water jacket in Embodiment 1.

[0016] Figure 4 is a sectional view of the metal water jacket in Embodiment 1.

[0017] Figure 5 is a schematic diagram of the metal water jackets assembled into a circular water jacket in Embodiment 1.

[0018] Among them: 100, hearths; 110, inner hearths; 120, outer hearths; 130, bases; 131, magnesia ramming layer; 132, high-alumina brick layer; 133, high-alumina ramming layer; 134, refractory brick layer; 200, furnace bodies; 210, inner furnace bodies; 220, outer furnace bodies; 300, metal water jackets; 310, inlet pipes; 320, outlet pipes; 330, partitions. Specific embodiments

[0019] The present utility model will be further described in detail below in conjunction with specific embodiments.

[0020] Embodiment 1

[0021] As Figure 1 and Figure 2 shown, the composite water-cooled furnace wall of this embodiment includes a hearth 100, a furnace body 200 and a metal water jacket 300.

[0022] The hearth 100 is in the shape of a bottomed cylinder, the furnace body 200 is in the shape of a bottomless cylinder, and the furnace body 200 stands on the hearth 100.

[0023] As Figure 3 shown, the metal water jacket 300 is in the shape of an arc-shaped brick, the inside of the metal water jacket 300 is hollow, the surface of the metal water jacket 300 is provided with an inlet pipe 310 and an outlet pipe 320, and a plurality of metal water jackets 300 are assembled into a complete circular water jacket as shown in Figure 5 shown; considering factors such as strength, thermal conductivity, workability and economy, the material of the metal water jacket 300 in this embodiment is selected as metal copper.

[0024] As Figure 4 shown, a vertical partition 330 is arranged inside the metal water jacket 300, the partition 330 is supported between the upper panel and the lower panel of the metal water jacket 300, and the partition 330 forms a zigzag water flow path inside the metal water jacket 300, and both ends of the water flow path are connected to the inlet pipe 310 and the outlet pipe 320. The partition 330 can make the hollow metal water jacket 300 have stronger compressive performance. At the same time, the partition 330 forms a zigzag water flow path inside the metal water jacket 300, so that the cooling water has a longer walking path inside the metal water jacket 300, and promotes more sufficient heat exchange between the cooling water and the metal water jacket 300 and the furnace wall.

[0025] As Figure 2 shown, the hearth 100 includes an inner hearth 110 and an outer hearth 120 made of refractory materials. An empty groove with the same shape as the circular water jacket is arranged between the inner hearth 110 and the outer hearth 120. The circular water jacket assembled by the metal water jackets 300 is placed in the empty groove, and the inlet pipe 310 and the outlet pipe 320 are exposed on the surface of the hearth 100.

[0026] The inner layer 110 of the bosh is made of recombined magnesia-chrome bricks, and the outer layer 120 of the bosh is made of semi-recombined magnesia-chrome bricks. When laying the inner layer 110 and the outer layer 120 of the bosh, the metal water jacket 300 in the shape of an arc-shaped brick is laid between the inner layer 110 and the outer layer 120 of the bosh. This method will neither affect the overall laying of the furnace wall nor affect the overall strength of the furnace wall. During the metal smelting operation, circulating cooling water is introduced into each metal water jacket 300 to reduce the temperature inside the furnace wall, reduce the erosion damage of the high-temperature melt, and improve the service life of the furnace wall.

[0027] The base 130 of the bosh 100 is located below the inner layer 110 and the outer layer 120 of the bosh. The base 130 includes multiple layers of fireproof material layers. The top layer of the base 130 is a magnesia ramming mix layer 131, the second top layer of the base 130 is a high-alumina brick layer 132, the third layer of the base 130 is a high-alumina ramming mix layer 133, and the bottom layer of the base 130 is a refractory brick layer 134.

[0028] The furnace stack 200 includes an inner layer 210 and an outer layer 220 of the furnace stack. The inner layer 210 of the furnace stack is made of high-alumina bricks, and the outer layer 220 of the furnace stack is made of refractory bricks. After the overall laying of the entire furnace wall body is completed, the outer surfaces of the bosh 100 and the furnace stack 200 are wrapped with asbestos boards as heat insulation layers and protective layers.

[0029] Although the embodiments of the present utility model are described in the specification, these embodiments are only for reference and should not limit the protection scope of the present utility model. All omissions, substitutions, and changes made within the scope not departing from the gist of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A composite water-cooled furnace wall, characterized in that: It comprises a furnace bosh (100), a furnace body (200) and a metal water jacket (300); The furnace belly (100) is in the shape of a cylinder with a bottom, the furnace body (200) is in the shape of a cylinder without a bottom, and the furnace body (200) stands on the furnace belly (100); The metal water jacket (300) is in the shape of an arc-shaped brick. The interior of the metal water jacket (300) is hollow. A water inlet pipe (310) and a water outlet pipe (320) are arranged on the surface of the metal water jacket (300). A plurality of metal water jackets (300) are assembled into a complete circular water jacket. The furnace bosh (100) comprises a furnace bosh inner layer (110) and a furnace bosh outer layer (120) made of refractory materials, and a hollow groove having a shape consistent with the circular water jacket is arranged between the furnace bosh inner layer (110) and the furnace bosh outer layer (120). The circular water jacket formed by metal water jackets (300) is placed in the hollow groove, and a water inlet pipe (310) and a water outlet pipe (320) are exposed from the surface of the furnace bosh (100).

2. The composite water-cooled furnace wall according to claim 1, characterized in that: The inner layer (110) of the furnace belly is made of rebonded magnesia-chrome bricks.

3. The composite water-cooled furnace wall according to claim 1, characterized in that: The outer layer (120) of the furnace belly is made of semi-reinforced magnesia-chrome bricks.

4. The composite water-cooled furnace wall according to claim 1, characterized in that: The furnace belly (100) further comprises a base (130), wherein the base (130) is located below the furnace belly inner layer (110) and the furnace belly outer layer (120), and the base (130) comprises multiple layers of fireproof material.

5. The composite water-cooled furnace wall according to claim 4, characterized in that: The top layer of the base (130) is a magnesium ramming material layer (131).

6. The composite water-cooled furnace wall according to claim 5, characterized in that: The second top layer of the base (130) is a high-alumina brick layer (132).

7. The composite water-cooled furnace wall according to claim 6, characterized in that: The third layer of the base (130) is a high-alumina ramming material layer (133).

8. The composite water-cooled furnace wall according to claim 7, characterized in that: The bottom layer of the base (130) is a refractory brick layer (134).

9. The composite water-cooled furnace wall according to claim 1, characterized in that: The furnace body (200) comprises a furnace body inner layer (210) and a furnace body outer layer (220), wherein the furnace body inner layer (210) is made of high-alumina bricks, and the furnace body outer layer (220) is made of refractory bricks.

10. The composite water-cooled furnace wall according to claim 1, characterized in that: A vertical partition (330) is arranged in the metal water jacket (300). The partition (330) is supported between an upper panel and a lower panel of the metal water jacket (300). The partition (330) forms a tortuous water flow passage in the metal water jacket (300). Two ends of the water flow passage are connected to a water inlet pipe (310) and a water outlet pipe (320).

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