Metal ceramic cooling module

Abstract

The utility model discloses a metal ceramic cooling module, and relates to the technical field of blast furnace cooling, in particular to a metal ceramic cooling module which comprises a main body, an annular metal baffle is arranged on the upper surface of the main body, the annular metal baffle coincides with the side of the main body, and an anchoring part structure is arranged on the upper surface of the main body. The anchoring part structure comprises an anchor column and a limiting column, the anchor column is arranged on the upper surface of the main body, the limiting column is arranged at the end, away from the main body, of the anchor column, a connecting through groove is formed in the main body, a connecting ring is arranged on the lower surface of the main body, the position of the connecting ring is matched with that of the connecting through groove, and a connecting base is arranged on the lower surface of the main body. According to the metal ceramic cooling module, through the arrangement of the annular metal baffle, the metal ceramic cooling module has the effects that bricks do not need to be inlaid during refractory material construction of the hot surface of the cooling wall, pouring is conducted through an unshaped refractory material, formwork erecting is not needed under the action of the baffle, direct pouring and leveling can be conducted, construction is convenient and fast, and the construction period is short.

Description

Technical Field

[0001] This utility model relates to the field of blast furnace cooling technology, specifically a metal-ceramic cooling module. Background Technology

[0002] Cooling walls are crucial cooling equipment in blast furnaces. During ironmaking, the furnace interior experiences extremely high temperatures, which can damage the furnace body. Traditional cooling walls may suffer from insufficient cooling efficiency and susceptibility to damage. As blast furnaces become larger and more efficient, the performance requirements for cooling walls are also increasing. In the past, the hot surfaces of the cooling walls in blast furnaces were mostly protected by inlaying a layer of refractory bricks. The upper and middle parts of the furnace body were generally inlaid with clay bricks, while the belly, waist, and lower part of the furnace body were generally inlaid with silicon carbide-bonded silicon nitride bricks.

[0003] In existing cermet cooling modules, the bonding force between the lining bricks and the cooling wall is affected during blast furnace operation due to frequent thermal shocks, scouring and abrasion from materials inside the furnace, leading to loosening or even detachment of the lining bricks. Once the lining bricks detach, the cooling wall is directly exposed to the high-temperature, chemically corrosive furnace environment, accelerating its damage. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a metal-ceramic cooling module, which solves the problems mentioned in the background section.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a metal-ceramic cooling module, comprising a main body, an annular metal baffle on the upper surface of the main body, the annular metal baffle coinciding with the side of the main body, an anchor structure on the upper surface of the main body, the anchor structure including an anchor post and a limiting post, the anchor post being disposed on the upper surface of the main body, the limiting post being disposed at the end of the anchor post away from the main body, a connecting groove being provided inside the main body, a connecting ring on the lower surface of the main body, the position of the connecting ring matching the position of the connecting groove, a connecting seat on the lower surface of the main body, a fixing post on the outer surface of the connecting seat, a casting layer being cast between the annular metal rings, and the upper surface of the main body serving as a cooling wall hot surface.

[0008] Optionally, the annular metal baffle is approximately 150 mm high and 30-50 mm thick.

[0009] Optionally, the number of anchor structures is several, evenly distributed inside the annular metal baffle, and the number of upper limit posts for each anchor post is two.

[0010] Optionally, the number of connecting slots and connecting rings is several, evenly distributed inside the main body.

[0011] Optionally, the number of connecting seats and fixing columns is several, evenly distributed on both sides of the bottom surface of the main body.

[0012] Optionally, the casting is made of HX-GL ultra-wear-resistant castable, which is mainly composed of dense corundum, with the addition of various powders such as boron nitride, boron carbide, and composite fibers, and finally bonded together with nano-sol with a silica solid content of ≥40%.

[0013] This utility model provides a metal-ceramic cooling module, which has the following beneficial effects:

[0014] 1. This metal-ceramic cooling module, through the setting of annular metal baffles, enables the metal-ceramic cooling module to achieve the effect of convenient construction and short construction period by using unshaped refractories for pouring during the construction of the refractory material on the hot surface of the cooling wall without the need for brick inlay, and no formwork is required under the action of the baffles.

[0015] 2. This metal-ceramic cooling module features a tightly fitted casting layer with the hot surface of the cooling wall, forming a good heat conduction interface. The casting material has a certain thermal conductivity, enabling it to evenly conduct heat from the hot surface to the cooling channels. This uniform heat conduction avoids localized overheating, improves the cooling uniformity of the entire cooling wall, and thus enhances cooling efficiency. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a three-dimensional structural diagram of the present invention viewed from below;

[0018] Figure 3 This is a front view structural diagram of the present invention;

[0019] Figure 4 This is a schematic diagram of the three-dimensional structure of the casting layer after casting.

[0020] In the figure: 1. Main body; 2. Annular metal baffle; 3. Anchor structure; 301. Anchor column; 302. Limiting column; 4. Connecting through groove; 5. Connecting ring; 6. Connecting seat; 7. Fixing column; 8. Cast-in-place layer; 9. Cooling wall hot surface. Detailed Implementation

[0021] 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.

[0022] Example

[0023] A metal-ceramic cooling module includes a main body 1. An annular metal baffle 2 is provided on the upper surface of the main body 1, coinciding with the side of the main body 1. An anchor structure 3 is provided on the upper surface of the main body 1, comprising an anchor post 301 and a limiting post 302. The anchor post 301 is located on the upper surface of the main body 1, and the limiting post 302 is located at the end of the anchor post 301 away from the main body 1. A connecting groove 4 is formed inside the main body 1. A connecting ring 5 is provided on the lower surface of the main body 1, its position matching the position of the connecting groove 4. A connecting seat 6 is provided on the lower surface of the main body 1, and a fixing post 7 is provided on the outer surface of the connecting seat 6. A casting layer 8 is cast between the annular metal rings. The upper surface of body 1 is the cooling wall hot surface 9. The size of the annular metal baffle 2 is about 150 mm high and 30-50 mm thick. There are several anchor structures 3, which are evenly distributed inside the annular metal baffle 2. There are two upper limit posts 302 for each anchor post 301. There are several connecting slots 4 and connecting rings 5, which are evenly distributed inside the body 1. There are several connecting seats 6 and fixing posts 7, which are evenly distributed on both sides of the bottom surface of the body 1. The casting is made of HX-GL ultra-wear-resistant castable, which is mainly composed of dense corundum, with the addition of various powders such as boron nitride, boron carbide, and composite fibers. Finally, it is formed by bonding with nano sol with a silica solid content of ≥40%.

[0024] To achieve the effects of improved cooling efficiency, reduced construction and maintenance costs, and extended service life of this metal-ceramic cooling module, as shown in the attached document... Figure 1-4 As shown, this application adopts the following structure: through the tight fit between the annular metal baffle 2, the casting layer and the hot surface of the cooling wall 9, and the cooperation of the smooth cooling wall hot surface 9, the dovetail groove structure of the cooling wall hot surface 9 is eliminated during use, and instead, the anchor structure 3 is directly cast on the smooth surface. Eliminating the anchor increases the thickness of the cooling wall body, allowing for a larger space to increase the diameter of the cooling water pipes. For example, typically in a 1500m... 3The cooling wall water pipes used in blast furnaces typically have an inner diameter of 50mm. With the new metal-ceramic cooling module, the inner diameter can be changed to 66mm. Calculations show that the cross-sectional area of ​​the metal-ceramic cooling module is 1.74 times that of the traditional cooling wall, meaning its maximum water flow rate and cooling capacity are also 1.74 times that of the traditional cooling wall (under the same water quality). The metal body of the metal-ceramic cooling module is basin-shaped, with annular metal baffles 2 approximately 150mm high and 30-50mm thick around it. During the refractory construction of the hot surface 9 of the cooling wall, no bricks are needed; unshaped refractory is used for casting. Furthermore, the baffles eliminate the need for formwork; direct casting and leveling are sufficient, making construction convenient and shortening the construction period. During manufacturing, after casting, a 48-hour curing period is required for initial solidification. Upon delivery to the site, it can be directly installed and used without further curing, further shortening the on-site construction period. The hot surface of the metal-ceramic cooling module uses HX-GL castable refractory. Depending on the application location, temperature, and operating conditions, the hot surface of the metal-ceramic cooling module in the upper part of the furnace body uses HX-GL ultra-wear-resistant castable, mainly composed of dense corundum, with the addition of various powders such as boron nitride, boron carbide, and composite fibers. It is then bonded together with a nano-sol with a silica solid content ≥40%, resulting in a service life more than twice that of clay bricks. The hot surface of the metal-ceramic cooling module in the lower part of the furnace body uses HX-GL high thermal conductivity castable, mainly composed of dense corundum, with the addition of various powders such as aluminum nitride ceramics, boron carbide, and silicon nitride. It is also bonded together with a nano-sol with a silica solid content ≥40%, resulting in a service life more than twice that of silicon carbide-bonded silicon nitride bricks. Simultaneously, the design of the anchors and baffles prevents the castable from falling off, providing excellent protection for the metal-ceramic cooling module. This metal-ceramic cooling module forms a good heat conduction interface through the tight fit between the castable layer and the hot surface 9 of the cooling wall. The casting material has a certain thermal conductivity, enabling it to evenly conduct heat from the hot surface to the cooling channels. This uniform heat conduction avoids localized overheating, improves the cooling uniformity of the entire cooling wall, and thus enhances cooling efficiency. The extended service life of the hot-surface refractory, increased pipe diameter, enhanced cooling efficiency, and increased metal body thickness increase the metal's flexural strength all contribute to extending the lifespan of the metal-ceramic cooling module. This metal-ceramic cooling module can be directly installed on-site and used immediately after installation without the need for furnace preheating. It saves at least 10-15 days of construction time compared to brick lining and 7-10 days compared to other casting manufacturers. The thin fireplace lining design reduces material usage and saves on maintenance costs. The extended service life of the hot-surface refractory, increased pipe diameter, enhanced cooling efficiency, and increased metal body thickness all contribute to extending the lifespan of the metal-ceramic cooling module.

[0025] 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 metal-ceramic cooling module, comprising a main body, characterized in that: The upper surface of the main body is provided with an annular metal baffle, which coincides with the side of the main body. The upper surface of the main body is provided with an anchor structure, which includes an anchor post and a limiting post. The anchor post is located on the upper surface of the main body, and the limiting post is located at the end of the anchor post away from the main body. A connecting groove is opened inside the main body. A connecting ring is provided on the lower surface of the main body, and the position of the connecting ring is adapted to the position of the connecting groove. A connecting seat is provided on the lower surface of the main body, and a fixing post is provided on the outer surface of the connecting seat. A casting layer is cast between the annular metal rings. The upper surface of the main body is a cooling wall hot surface.

2. The metal-ceramic cooling module according to claim 1, characterized in that: The annular metal baffle is approximately 150 mm high and 30-50 mm thick.

3. The metal-ceramic cooling module according to claim 1, characterized in that: The number of anchor structures is several, evenly distributed inside the annular metal baffle, and the number of upper limit posts for each anchor post is two.

4. The metal-ceramic cooling module according to claim 1, characterized in that: The number of connecting slots and connecting rings is several, and they are evenly distributed inside the main body.

5. A metal-ceramic cooling module according to claim 1, characterized in that: The number of connecting seats and fixing columns is several, and they are evenly distributed on both sides of the bottom surface of the main body.

Images