Simple device for cooperatively replacing ascension pipe of coke oven
By designing a simple device including a bottom cylinder, support legs, top cylinder, bottom rod, and adjusting rod, the safety and stability issues during the replacement of coke oven riser pipes were solved, and safe and stable operation of the replacement process was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BAOTOU IRON & STEEL (GROUP) CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-05-19
AI Technical Summary
The lack of a base for replacing the existing coke oven riser pipes makes the hoisting process dangerous and prone to tipping over, affecting safety and stability.
Design a simple device including a base cylinder, support legs, a top cylinder, a base rod, and an adjusting rod. Through the connection structure of the support legs and the top cylinder, combined with the limit bolts, the riser pipe can be stably placed and its height adjusted, ensuring the safety and stability of the replacement process.
It improves the safety and stability of the riser pipe replacement process, reduces the risk of tipping, and simplifies the operation procedure.
Smart Images

Figure CN224258550U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coke oven technology, specifically a simple device for replacing the coke oven riser pipe. Background Technology
[0002] Replacing the coke oven riser pipe is a relatively complex and somewhat dangerous task. It is usually carried out at the end of the coking process, when the amount of raw coal gas generated in the carbonization chamber is reduced, which is conducive to the removal of residual raw coal gas in the furnace during the riser pipe replacement operation.
[0003] The coke oven riser pipe is typically located on the upper part of the oven roof on the side of the coke oven machine, connected to the carbonization chamber. During coke oven production, coal is dry-distilled into coke in the carbonization chamber, and the resulting raw coal gas is discharged through the riser pipe to the gas purification process. Therefore, the safe operation of the riser pipe directly affects the normal operation and service life of the coke oven. Due to the periodic temperature changes of the raw coal gas flowing inside the riser pipe, graphite will adhere to the inner wall of the riser pipe, requiring regular manual cleaning. Moreover, after a certain period of use, the refractory material lining the inner wall of the riser pipe will crack and fall off, causing leakage and the escape of raw coal gas. To maintain the tightness of the riser pipe, damaged riser pipes need to be replaced periodically.
[0004] Existing riser pipes lack a base for replacement, and are usually hoisted directly using a lifting device. This method is dangerous and prone to tipping over. Therefore, this invention provides a simple device for replacing coke oven riser pipes to solve the above problems. Utility Model Content
[0005] The purpose of this invention is to provide a simple device for replacing the coke oven riser pipe, so as to solve the problems in the background art mentioned above.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a simple device for replacing coke oven riser pipe, comprising a bottom cylinder, support legs, a top cylinder, a bottom rod, and an adjusting rod. Support legs are welded onto the bottom cylinder, and three support legs are evenly distributed at three angles. The outer end face of the support legs is inclined, and a first connecting piece is welded to the outer side of the lower end of the support legs.
[0007] A top cylinder is provided directly above the bottom cylinder. A second connector is welded to the outer side of the upper end of the top cylinder. Three second connectors are distributed at equal angles and are aligned with the first connector.
[0008] A base rod is rotatably connected to the first connector. An adjusting rod is slidably embedded in the upper end of the base rod. The top end of the adjusting rod is rotatably connected to the second connector. An embedded limiting bolt is installed on the inner side of the upper end of the base rod. The inner end of the limiting bolt is located in a limiting hole opened on the adjusting rod.
[0009] In a preferred embodiment of this invention, the bottom cylinder is a cylindrical structure, and the bottom cylinder has the same structure as the top cylinder.
[0010] In a preferred embodiment of this invention, the bottom end face of the bottom cylinder is flush with the bottom end face of the support leg.
[0011] As a preferred embodiment of this utility model, both the bottom cylinder and the top cylinder have open ends.
[0012] As a preferred embodiment of this invention, the support leg has a triangular structure.
[0013] In a preferred embodiment of this invention, the limiting bolt passes through the limiting hole and through the bottom rod.
[0014] As a preferred embodiment of this utility model, two limiting bolts are provided from top to bottom.
[0015] Compared with the prior art, the beneficial effects of this utility model are: by welding support legs with evenly distributed angles to the outside of the bottom cylinder, it can temporarily place the riser pipe. Moreover, the height of the top cylinder above the bottom cylinder can be adjusted as needed. The top cylinder can be pulled up directly and then fixed by the limiting bolts, which not only has high stability but also relatively high safety. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a front view of the connection structure between the bottom cylinder and the top cylinder of this utility model;
[0018] Figure 3 This is a schematic diagram of the bottom cylinder and top cylinder fitting structure of this utility model;
[0019] Figure 4 This is a front view of the internal connection structure between the base rod and the adjusting rod of this utility model.
[0020] In the diagram: 1. Bottom cylinder; 2. Support leg; 3. Top cylinder; 4. First connecting piece; 5. Bottom rod; 6. Limit bolt; 7. Adjusting rod; 8. Limit hole; 9. Second connecting piece. Detailed Implementation
[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0022] In the description of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, in the description of this utility model, "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0023] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances. "Multiple" means two or more, and unless otherwise explicitly limited, all of them fall within the scope of protection of this utility model.
[0024] Example: Figure 1-4 The present invention provides a technical solution: including a bottom cylinder 1, a support leg 2, a top cylinder 3, a bottom rod 5 and an adjusting rod 7. The support leg 2 is welded on the bottom cylinder 1, and there are three support legs 2 distributed at equal angles. The outer end face of the support leg 2 is inclined, and a first connecting piece 4 is welded on the outer side of the lower end of the support leg 2.
[0025] A top cylinder 3 is provided directly above the bottom cylinder 1. A second connector 9 is welded to the outer side of the upper end of the top cylinder 3. Three second connectors 9 are distributed at equal angles and are aligned with the first connector.
[0026] A base rod 5 is rotatably connected to the first connector 4. An adjusting rod 7 is slidably connected to the upper end of the base rod 5. The top of the adjusting rod 7 is rotatably connected to the second connector 9. An embedded limiting bolt 6 is installed on the inner side of the upper end of the base rod 5. The inner end of the limiting bolt 6 is located in the limiting hole 8 opened on the adjusting rod 7.
[0027] The bottom cylinder 1 has a cylindrical structure, and the bottom cylinder 1 has the same structure as the top cylinder 3, which facilitates the placement of the riser pipe and increases stability.
[0028] The bottom end face of the base cylinder 1 is flush with the bottom end face of the support leg 2, which makes the device more stable.
[0029] Both the bottom cylinder 1 and the top cylinder 3 have open ends, which facilitates the passage of the riser pipe and also makes it easier to remove the riser pipe.
[0030] The second support leg has a triangular structure, which increases the stability of the device.
[0031] The limiting bolt 6 passes through the limiting hole 8 and through the bottom rod 5, which can fix the bottom rod and the adjusting rod.
[0032] Two limit bolts 6 are provided from top to bottom, which increases the stability of the adjusting rod.
[0033] Working principle:
[0034] In use, the bottom cylinder 1 is fitted onto the coal loading hole ring, and then the top cylinder 3 is pulled up and adjusted as needed. During the upward adjustment of the top cylinder 3, the adjusting rod 7 is adjusted up and down within the bottom rod 5. Then, the adjusting rod 7 is fixed by the limiting bolt 6, thus creating a gap between the top cylinder 3 and the bottom cylinder 1, facilitating the replacement of the riser pipe and preventing the riser pipe from tipping over during placement. After use, the limiting bolt 6 is opened, and the top cylinder 3 is pressed down to fit against the bottom cylinder 1. Then, the adjusting rod 7 is fixed by the limiting bolt 6, reducing the volume of the top cylinder 3 and the bottom cylinder 1, making it easy to carry, and the operation is simple, convenient, and quick.
[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A simple device for replacing the riser pipe of a coke oven, comprising a bottom cylinder (1), support legs (2), a top cylinder (3), a bottom rod (5), and an adjusting rod (7), characterized in that: The bottom cylinder (1) is welded with support legs (2), and there are three support legs (2) distributed at equal angles. The outer end face of the support legs (2) is inclined. The first connector (4) is welded to the outer side of the lower end of the support legs (2). A top cylinder (3) is provided directly above the bottom cylinder (1). A second connector (9) is welded to the outer side of the upper end of the top cylinder (3). Three second connectors (9) are distributed at equal angles, and the second connectors (9) are aligned with the first connector. A base rod (5) is rotatably connected to the first connector (4). An adjusting rod (7) is slidably connected to the upper end of the base rod (5). The top end of the adjusting rod (7) is rotatably connected to the second connector (9). An embedded limiting bolt (6) is installed on the inner side of the upper end of the base rod (5). The inner end of the limiting bolt (6) is located in the limiting hole (8) opened on the adjusting rod (7).
2. The simple device for replacing the coke oven riser pipe according to claim 1, characterized in that: The bottom cylinder (1) is a cylindrical structure, and the bottom cylinder (1) has the same structure as the top cylinder (3).
3. A simple device for replacing coke oven riser pipes according to claim 1, characterized in that: The bottom end face of the bottom cylinder (1) is flush with the bottom end face of the support leg (2).
4. A simple device for replacing coke oven riser pipes according to claim 1, characterized in that: Both the bottom cylinder (1) and the top cylinder (3) have open structures at their top and bottom ends.
5. A simple device for replacing coke oven riser pipe according to claim 1, characterized in that: The support leg (2) has a triangular structure.
6. A simple device for replacing coke oven riser pipes according to claim 1, characterized in that: The limiting bolt (6) passes through the limiting hole (8) and through the bottom rod (5).
7. A simple device for replacing coke oven riser pipe according to claim 1, characterized in that: The limiting bolts (6) are provided in two parts from top to bottom.