Blast furnace cooling wall fixing structure

Abstract

The utility model relates to the technical field of cement processing equipment, and discloses a blast furnace cooling wall fixing structure which comprises a supporting rod, a mounting frame is arranged on the supporting rod, a limiting groove is formed in the mounting frame, and a limiting block is movably arranged in the limiting groove; a connecting rod is movably arranged in the limiting block in a penetrating mode, and one end of the connecting rod penetrates out of the limiting block from bottom to top. A positioning groove is formed in the top end of the limiting block, and a positioning block is arranged at the top end of the connecting rod. The connecting rod is of an L-shaped structure, and external threads and a nut are arranged at the end, away from the limiting block, of the connecting rod. According to the utility model, convenience can be provided for disassembly and maintenance of the cooling wall, meanwhile, abrasion to the furnace body and the cooling wall during disassembly and assembly of the cooling wall is reduced, and the service life of the furnace body and the cooling wall is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of cement processing equipment, in particular to a fixing structure for a blast furnace cooling stave. Background Art

[0002] The cooling stave is an important water-cooled component of the blast furnace lining, usually installed in parts such as the waist, belly, and hearth of the blast furnace. It can not only withstand high temperatures, but also withstand the wear of the burden, the erosion of molten slag, and the scouring of the coal gas flow. It needs to have good comprehensive properties such as thermal strength, heat shock resistance, and resistance to rapid cooling and heating. When in use, the cooling stave is usually connected and fixed to the inner wall of the blast furnace by bolts. During each replacement and maintenance, special tools are required to disconnect the connection between the bolts and the furnace body and the cooling stave. This not only makes the operation cumbersome, but also each operation of tightening and disconnecting the bolts will cause irreversible wear to the cooling stave and the furnace wall. In the long run, it will affect its structural strength and shorten its service life. Therefore, there is an urgent need for a fixing structure for a blast furnace cooling stave that is convenient for installation and operation and reduces the wear on the cooling stave and the furnace wall during the disassembly of the cooling stave. Content of the Utility Model

[0003] The purpose of the utility model is to provide a fixing structure for a blast furnace cooling stave, which can facilitate the disassembly and maintenance of the cooling stave, and at the same time reduce the wear on the furnace body and the cooling stave during the disassembly and installation of the cooling stave, and ensure its service life.

[0004] The utility model adopts the following technical solutions:

[0005] A fixing structure for a blast furnace cooling stave includes a support rod, an installation frame is arranged on the support rod, a limiting groove is arranged on the installation frame, and a limiting block is movably arranged in the limiting groove; a connecting rod is movably inserted through the limiting block, and one end of the connecting rod passes through the limiting block from bottom to top; a positioning groove is arranged at the top of the limiting block, and a positioning block is arranged at the top of the connecting rod; wherein the connecting rod is of an L-shaped structure, and an external thread and a nut are arranged at one end of the connecting rod away from the limiting block.

[0006] Preferably, both the limiting groove and the limiting block are of an inverted frustum structure.

[0007] Preferably, a limiting convex block is arranged in the limiting groove, and a limiting groove is arranged on the outer wall of the limiting block.

[0008] Preferably, a threaded rod is arranged at one end of the support rod away from the installation frame, and a fixing nut is arranged on the threaded rod.

[0009] Preferably, two sets of upper and lower installation frames are arranged.

[0010] Preferably, two of the said limiting grooves are provided on one set of the said mounting brackets, and one of the said limiting grooves is provided on the other set of the said mounting brackets.

[0011] Preferably, the said mounting bracket includes a support sleeve connected to the said support rod, a support plate is arranged inside the support sleeve, and the limiting groove is arranged on the support plate.

[0012] Preferably, the top end and the side far from the support rod of the support sleeve are both open, a fixing groove is opened along its length direction at the bottom of it, a positioning screw is penetrated through the support plate, and a nut is arranged after the bottom end of the positioning screw extends out from the fixing groove.

[0013] Preferably, the said support sleeve can be adjusted along the height direction of the said support rod.

[0014] Preferably, rubber gaskets are arranged at one ends of the said support rods opposite to the said fixing nuts.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows: By pre-installing the support rods on the inner wall of the blast furnace and using the connection between the connecting rods and the mounting brackets, the subsequent installation and disassembly of the cooling stave and the blast furnace are realized, avoiding the wear of the cooling stave and the blast furnace during subsequent maintenance, and ensuring its service life; In addition, by passing the top end of the connecting rod through the limiting block from bottom to top and rotating the limiting block so that the positioning block on the connecting rod is located in the positioning groove, under the action of the gravity of the cooling stave, the limiting block is located in the limiting groove, and at this time, the fixed installation of the cooling stave is realized, with simple and quick operation and strong practicability. Description of the Drawings

[0016] Figure 1 is a schematic structural diagram of an embodiment of the present application;

[0017] Figure 2 is Figure 1 the enlarged view of A in Detailed Embodiments

[0018] The present utility model will be clearly and completely described below in conjunction with the drawings and embodiments:

[0019] Such as Figures 1 to 2As shown in the figure, a fixing structure for a blast furnace cooling stave of the present utility model includes a support rod 1. An installation frame 2 is arranged on the support rod 1. A limit groove 3 is arranged on the installation frame 2. A limit block 4 is movably arranged in the limit groove 3. A connecting rod 5 is movably inserted through the limit block 4, and one end of the connecting rod 5 passes through the limit groove 3 and the limit block 4 from bottom to top. A positioning groove 6 is arranged at the top of the limit block 4. A positioning block 7 is arranged at the top of the connecting rod 5. Through grooves for the positioning block 7 to pass through are opened in both the limit block 4 and the limit groove 3 to facilitate the threading connection of the connecting rod 5. The connecting rod 5 is of an L-shaped structure, and an external thread and a nut are arranged at the end of the connecting rod 5 away from the limit block 4. During use, the support rod 1 is installed on the inner wall of the blast furnace. Then, the threaded end of the connecting rod 5 is passed through a through hole reserved on the cooling stave and fixedly connected by a nut. Subsequently, the cooling stave is lifted, and the other end of the connecting rod 5 is passed through the bottom of the limit groove 3 and out of the top of the limit block 4. After the positioning block 7 on the connecting rod 5 passes through the limit block 4, the limit block 4 is rotated so that the positioning groove 6 arranged at the top of the limit block 4 is located below the positioning block 7. Finally, the cooling stave is lowered, and under the action of gravity, the positioning block 7 enters the positioning groove 6, and the installation of the cooling stave can be completed. The operation is simple and fast, and the practicability is strong.

[0020] Further, in this embodiment, both the limit groove 3 and the limit block 4 are of an inverted frustum structure, so that the limit block 4 enters the limit groove 3 and is in close contact with each other under the action of gravity, enhancing the stability of the installation of the cooling stave. In addition, a limit convex block is preferably arranged in the limit groove 3, and a limit groove 8 matching the limit convex block is arranged on the outer wall of the limit block 4, which can limit the limit block 4 and ensure the stability of the limit block 4 in the use state, avoiding the positioning block 7 moving out of the positioning groove 6 due to external vibration, and at this time, the limit block 4 loses its restriction and rotates and deflects.

[0021] Further, a threaded rod 9 is arranged at the end of the support rod 1 away from the installation frame 2. A fixing nut 10 is arranged on the threaded rod 9. The threaded rod 9 is used to pass through a bolt hole reserved on the inner wall of the blast furnace, and the support rod 1 is fixed by the fixing nut 10. Since the cooling stave and the inner wall of the blast furnace are bolt-connected in the prior art, a through hole for the bolt to pass through is opened in advance. Through the arrangement of the threaded rod 9 in this embodiment, additional operations on the inner wall of the blast furnace are avoided, and damage to the blast furnace caused by the installation of the support rod 1 is prevented. In addition, rubber gaskets 11 are arranged at both ends of the support rod 1 opposite to the fixing nut 10. The rubber gasket 11 arranged on the support rod 1 is coaxially arranged with the threaded rod 9, so as to enhance the tightness of its connection with the blast furnace by using the two rubber gaskets 11 after the support rod 1 is installed, reduce the wear on the blast furnace body, and at the same time can seal the through hole.

[0022] Furthermore, in this embodiment, there are two sets of mounting brackets 2 arranged vertically. One set of mounting brackets 2 is provided with two limiting grooves 3, and the other set of mounting brackets 2 is provided with one limiting groove 3. The three limiting grooves 3 are arranged in a triangular structure to ensure the stability of the cooling wall. Specifically, the mounting bracket 2 includes a support sleeve 2-1 connected to the support rod 1. A support plate 2-2 is arranged inside the support sleeve 2-1, and the limiting groove 3 is arranged on the support plate 2-2. Preferably, the support sleeve 2-1 is connected to the support plate 2-2 and the support rod 1 is connected to the support sleeve 2-1 by bolts. In addition, both the top end and the side away from the support rod 1 of the support sleeve 2-1 are open. A fixing groove is formed at the bottom of the support sleeve 2-1 along its length direction. A positioning screw rod passes through the support plate 2-2, and a nut is arranged at the bottom end of the positioning screw rod after it extends out of the fixing groove. The open setting of the support sleeve 2-1 and the fixing groove at the bottom end of the support sleeve 2-1 facilitate the adjustment of the position of the support plate 2-2, increase the flexibility of the installation of the cooling wall, and thus meet different installation requirements.

[0023] In addition, in this embodiment, the support sleeve 2-1 can be adjusted along the height direction of the support rod 1 to adjust the installation height of the cooling wall, further improving the flexibility of the installation of the cooling wall and enhancing its practical performance. Specifically, an adjustment groove 12 can be formed vertically on the support rod 1. The support sleeve 2-1 is fixedly connected to the support rod 1 by bolts passing through the adjustment groove 12 and then locked by nuts. The structure is simple, the operation is convenient, and the practicability is strong.

[0024] When the utility model is in use, first, the support rod 1 is connected to a through hole pre-opened on the blast furnace through the threaded rod 9 and the fixing nut 10 to realize the fixed installation of the support rod 1. Subsequently, the connecting rod 5 can be connected to the cooling wall. After the connection, the end of the connecting rod 5 away from the cooling wall passes through the limiting groove 3 and the limiting block 4. As the positioning block 7 at the top end of the connecting rod 5 moves out of the limiting block 4, the limiting block 4 is rotated to align the positioning block 7 with the positioning groove 6. Finally, the cooling wall is lowered, and under the action of gravity, the limiting block 4 is tightly connected to the limiting groove 3. The installation operation is simple and fast. When the cooling wall needs to be disassembled and maintained, only the limiting block 4 needs to be removed and the connecting rod 5 needs to be taken out of the limiting groove 3, without other operations, avoiding the wear of the blast furnace and the cooling wall and ensuring the service life of both.

Claims

1. A fixing structure for a blast furnace cooling stave, characterized in that: It includes a support rod, on which an installation frame is provided. A limit groove is provided on the installation frame, and a limit block is movably arranged in the limit groove; a connecting rod is movably inserted through the limit block, and one end of the connecting rod passes through the limit block from bottom to top; a positioning groove is provided at the top of the limit block, and a positioning block is provided at the top of the connecting rod; wherein the connecting rod is of an L-shaped structure, and an external thread and a nut are provided at one end of the connecting rod away from the limit block.

2. The fixed structure of the blast furnace cooling stave according to claim 1, characterized in that: Both the limit groove and the limit block are of an inverted frustum-shaped structure.

3. The fixed structure of the blast furnace cooling stave according to claim 2, characterized in that: Limit bumps are provided in the limit groove, and limit grooves are provided on the outer wall of the limit block.

4. The fixed structure of the blast furnace cooling stave according to claim 1, characterized in that: One end of the support rod away from the installation frame is provided with a threaded rod, and a fixing nut is provided on the threaded rod.

5. The fixed structure of the blast furnace cooling stave according to claim 1, wherein: Two sets of the installation frames are provided up and down.

6. The fixed structure of the blast furnace cooling stave according to claim 5, characterized in that: Two limit grooves are provided on one set of the installation frames, and one limit groove is provided on the other set of the installation frames.

7. The fixed structure of the blast furnace cooling stave according to claim 6, characterized in that: The installation frame includes a support sleeve connected to the support rod, a support plate is arranged in the support sleeve, and the limit groove is arranged on the support plate.

8. The fixed structure of the blast furnace cooling stave according to claim 7, characterized in that: Both the top end and the side away from the support rod of the support sleeve are open, a fixing groove is formed at the bottom of the support sleeve along its length direction, a positioning screw is inserted through the support plate, and a nut is provided at the bottom end of the positioning screw after it extends out of the fixing groove.

9. The fixed structure of the blast furnace cooling stave according to claim 7, characterized in that: The support sleeve can be adjusted along the height direction of the support rod.

10. The fixing structure of the blast furnace cooling stave according to claim 4, characterized in that: Rubber gaskets are provided at both ends of the support rod opposite to the fixing nut.

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