Inner skirt cover of heating furnace
The split-type inner skirt structure solves the problem of damage to the inner skirt of the heating furnace caused by corrosion and shaking, enabling convenient maintenance and extending service life, and saving manpower and material resources.
Patent Information
- Application Number
- CN202520446082.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-03-14
AI Technical Summary
The existing heating furnace inner skirt is damaged due to corrosion and shaking, requiring long-term furnace shutdowns for replacement, which consumes a lot of manpower and resources.
The system adopts a split inner skirt structure, including a first skirt body, a second skirt body, and a third skirt body, which are respectively connected to the water seal groove and the moving beam. The third skirt body protects the second skirt body, and maintenance can be carried out by simply replacing the third skirt body.
It extends the service life of the inner skirt cover, reduces maintenance time and difficulty, and saves manpower and resources.
Smart Images
Figure CN223925411U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to heating furnace technical field especially is related to a heating furnace inner skirt. BACKGROUND
[0002] The small skirt of the water beam stand column of the walking beam heating furnace is located in the water seal groove, and is welded together with the water seal groove and the movable beam, the skirt part is in liquid seal action under the water seal groove liquid level for a long time, and the coal gas in the furnace is prevented from overflowing through the hole of the movable beam stand column.
[0003] During long-term use, the part of the skirt in the water line will be corroded, and the walking beam will slightly shake during operation, which will cause the small skirt to be damaged along the water line part, since the skirt is welded together with the water seal groove and the movable beam, the whole skirt needs to be replaced during the replacement process, and the furnace needs to be stopped for a long time and the water seal groove needs to be emptied to have the replacement condition, which needs to consume huge manpower and material resources. UTILITY MODEL CONTENTS
[0004] The utility model solves the technical problem that the utility model overcomes the defects of the prior art and provides a heating furnace inner skirt.
[0005] In order to solve the above technical problem, the technical scheme of the utility model is as follows:
[0006] A heating furnace inner skirt comprises:
[0007] A first skirt body is in the shape of a hollow cuboid, is coaxially sleeved on the outside of the water beam stand column of the heating furnace, the lower end of the first skirt body is fixedly connected with the water seal groove, and the upper end of the first skirt body is higher than the liquid level of the water seal groove;
[0008] A second skirt body is in the shape of a hollow cuboid, is coaxially sleeved on the outside of the water beam stand column of the heating furnace, the upper end of the second skirt body is fixedly connected with the movable beam, and the lower end of the second skirt body is higher than the upper end of the first skirt body;
[0009] A third skirt body is in the shape of a hollow cuboid, is coaxially sleeved on the outside of the second skirt body, and the lower end of the third skirt body extends below the liquid surface of the water seal groove.
[0010] As a preferred scheme of the heating furnace inner skirt, the cross-sectional length of the second skirt body is equal to the cross-sectional length of the first skirt body, and the cross-sectional width of the second skirt body is equal to the cross-sectional width of the second skirt body.
[0011] As a preferred scheme of the heating furnace inner skirt cover, the third skirt body is welded on the movable beam.
[0012] As a preferred scheme of the heating furnace inner skirt cover, the upper end surface of the third skirt body is flush with the upper end surface of the second skirt body.
[0013] As a preferred scheme of the heating furnace inner skirt cover, the third skirt body is welded on the movable beam.
[0014] As a preferred scheme of the heating furnace inner skirt cover, the material of the third skirt body is Q235 steel.
[0015] The heating furnace inner skirt cover has the advantages that:
[0016] (1) The inner skirt cover comprises a first skirt body, a second skirt body and a third skirt body, is provided in a split structure, and can effectively eliminate the damage of the shaking of the walking beam to the inner skirt cover during the operation of the walking beam, thereby prolonging the service life of the inner skirt cover.
[0017] (2) The third skirt body wraps the second skirt body, can protect the second skirt body, avoids the direct contact of the second skirt body with the high temperature in the furnace, thereby effectively preventing the second skirt body from being damaged, and the third skirt body cooperates with the first skirt body to achieve the effect of liquid sealing.
[0018] (3) The inner skirt cover can be replaced only by replacing the third skirt body after being used for a period of time, and the replacement is more convenient because the third skirt body is only welded with the movable beam, thereby greatly saving manpower and resources. BRIEF DESCRIPTION OF DRAWINGS
[0019] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.
[0020] Figure 1 It is a schematic diagram of the installation of the traditional inner skirt cover in the walking beam furnace.
[0021] Figure 2 It is a schematic diagram of the installation of the heating furnace inner skirt cover provided by the embodiment of the present application in the walking beam furnace.
[0022] 1, first skirt body; 2, second skirt body; 3, third skirt body; 4, water seal groove; 5, movable beam; 6, heating furnace water beam column. DETAILED DESCRIPTION
[0023] In order to make the content of the utility model more easily and clearly understood, the utility model will be further explained in detail below according to specific embodiments and in conjunction with the drawings.
[0024] Figure 1 It is the installation schematic diagram of traditional inner skirt in the walking beam furnace. Figure 1 The inner skirt is the inner frame part, and the inner skirt is of integral structure, the upper end of which is welded with the movable beam 5, and the lower end of which is welded with the water seal groove 4.The part of the inner skirt in the water line will appear corrosion phenomenon in the long-term use process, and the walking beam will produce slight shaking during operation, which will cause the inner skirt to be damaged along the water line part. Since the small skirt is welded with the water seal groove 4 and the movable beam 5, the whole small skirt needs to be replaced during the replacement process, and a long time is needed to stop the furnace and empty the water seal groove 4 to have the replacement condition, which needs to consume huge manpower and material resources.
[0025] Figure 2 It is the installation schematic diagram of the heating furnace inner skirt in the walking beam furnace provided by the embodiment of the application. Referring to Figure 2 The inner skirt provided by the embodiment of the application includes a first skirt body 1, a second skirt body 2 and a third skirt body 3. By arranging the inner skirt as a split structure, the inner skirt is convenient to overhaul and replace while the function of the inner skirt in the heating furnace is ensured, and the time and difficulty of the overhaul are greatly reduced.
[0026] Specifically, the first skirt body 1 and the second skirt body 2 are the same as the structure of the traditional inner skirt of the heating furnace, and are both in the shape of a hollow cuboid. The first skirt body 1 and the second skirt body 2 are coaxially sleeved on the outside of the heating furnace water beam column 6. The lower end of the first skirt body 1 is fixedly connected with the water seal groove 4, and the upper end of the first skirt body 1 is higher than the liquid level of the water seal groove 4. The upper end of the second skirt body 2 is fixedly connected with the movable beam 5, and the lower end of the second skirt body 2 is higher than the upper end of the first skirt body 1, that is, a certain gap is left between the first skirt body 1 and the second skirt body 2. By adopting this split design, the damage of the inner skirt caused by the shaking of the walking beam during operation can be effectively eliminated.
[0027] In the embodiment, the cross-sectional length of the second skirt body 2 is equal to the cross-sectional length of the first skirt body 1, and the cross-sectional width of the second skirt body 2 is equal to the cross-sectional width of the second skirt body 2, that is, the cross-sectional shapes of the first skirt body 1 and the second skirt body 2 are the same.
[0028] The third skirt cover body 3 is also in a hollow cuboid shape, is fixedly welded on the movable beam 5, and is coaxially sleeved outside the second skirt cover body 2. Figure 2 The cross-sectional length of the third skirt cover body 3 is greater than that of the second skirt cover body 2, and the cross-sectional width of the third skirt cover body 3 is greater than that of the second skirt cover body 2. The upper end of the third skirt cover body 3 is flush with the upper end surface of the second skirt cover body 2, and the lower end of the third skirt cover body 3 extends below the liquid level of the water seal groove 4, that is, the third skirt cover body 3 wraps the second skirt cover body 2, and the third skirt cover body 3 can protect the second skirt cover body 2 from direct contact with high temperature in the furnace, thereby effectively preventing the second skirt cover body 2 from being damaged. At the same time, the third skirt cover body 3 cooperates with the first skirt cover body 1 to achieve the effect of liquid sealing.
[0029] It can be understood that the inner skirt cover provided in the embodiment of the application only needs to replace the third skirt cover body 3 after being used for a period of time. At the same time, since the third skirt cover body 3 is only welded with the movable beam 5, the replacement is more convenient, and the manpower and material resources are greatly saved.
[0030] In the embodiment, the material of the third skirt cover body 3 is Q235 steel. The third skirt cover body 3 is welded on the movable beam 5 by using an E4303 welding rod, and the welding leg height is 6 cm.
[0031] Therefore, the technical scheme of the application sets the inner skirt cover in a split structure, which facilitates the maintenance and replacement of the inner skirt cover while ensuring the function of the inner skirt cover in the heating furnace, and greatly reduces the time and difficulty of maintenance.
[0032] In addition to the above-mentioned embodiments, the utility model can also have other implementation manners; any technical scheme formed by equivalent replacement or equivalent transformation falls within the protection scope required by the utility model.
Claims
1. A furnace inner skirt characterized by: The utility model relates to a kind of water seal structure of heating furnace, including: First skirt cover body (1), hollow cuboid, coaxially cover and set in the outside of heating furnace water beam column (6), the lower end of the first skirt cover body (1) is fixedly connected with water seal groove (4), the upper end of the first skirt cover body (1) is higher than water seal groove (4) liquid level; Second skirt cover body (2), hollow cuboid, coaxially cover and set in the outside of heating furnace water beam column (6), the upper end of the second skirt cover body (2) is fixedly connected with dynamic beam (5), the lower end of the second skirt cover body (2) is higher than the upper end of the first skirt cover body (1); And, third skirt cover body (3), hollow cuboid, coaxially cover and set in the outside of the second skirt cover body (2), the lower end of the third skirt cover body (3) extends to water seal groove (4) liquid surface below.
2. The in-furnace skirt of claim 1, wherein: The cross-sectional length of the second skirt cover body (2) is equal to the cross-sectional length of the first skirt cover body (1), and the cross-sectional width of the second skirt cover body (2) is equal to the cross-sectional width of the second skirt cover body (2).
3. The in-furnace skirt of claim 2, wherein: The cross-sectional length of the third skirt cover body (3) is greater than the cross-sectional length of the second skirt cover body (2), and the cross-sectional width of the third skirt cover body (3) is greater than the cross-sectional width of the second skirt cover body (2).
4. The in-furnace skirt of claim 1, wherein: The upper end surface of the third skirt cover body (3) is flush with the upper end surface of the second skirt cover body (2).
5. The in-furnace skirt of claim 1, wherein: The third skirt cover body (3) is welded on the dynamic beam (5).
6. The in-furnace skirt of claim 1, wherein: The material of the third skirt cover body (3) is Q235 steel.