Limiting device for sliding sealing furnace bottom roller
By designing a limiting device for the sliding sealing furnace bottom roller, the problems of bottom roller misalignment and sealing were solved, thereby improving the stability and safety of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO YUANDING THERMAL & ENVIRONMENTAL ENG CO LTD
- Filing Date
- 2025-05-08
- Publication Date
- 2026-04-28
AI Technical Summary
The bottom roller of the sliding sealing furnace is prone to displacement under stress during use, which can lead to damage to the roller shaft and reduced sealing performance, posing a safety hazard and potentially causing leakage of high-temperature gas or dust.
A limiting device was designed, comprising components such as a support, a pressure push rod, a fixed frame, a fastening threaded rod, an arc-shaped limiting plate, a sliding rod, and a spring. Through multi-directional limiting and sealing enhancement measures, the bottom roller is prevented from shifting and the connection sealing is improved.
It effectively prevents bottom roller misalignment and damage, improves sealing, reduces safety hazards, prevents leakage of high-temperature gas or dust, and enhances equipment stability and safety.
Smart Images

Figure CN224175681U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sliding sealing furnace technology, specifically to a limiting device for the bottom roller of a sliding sealing furnace. Background Technology
[0002] A sliding seal furnace is an industrial device used for high-temperature processing, widely applied in industries such as metallurgy, chemicals, cement, and steel. Especially in high-temperature operations such as smelting, sintering, and heating, its main function is to control the airtightness of the furnace body through sealing technology, preventing the leakage of high-temperature gases and dust, while ensuring a stable high-temperature environment inside the furnace. The working principle of a sliding seal furnace mainly relies on a sliding sealing device, which ensures sealing under high-temperature conditions, thereby improving equipment safety and efficiency. In general, the sealing performance, high-temperature resistance, and energy-saving characteristics of sliding seal furnaces in high-temperature environments make them play an important role in many industrial production processes. With continuous technological development, the design and materials of sliding seal furnaces are constantly being improved, enhancing their stability and applicability.
[0003] Sliding sealing furnaces require the installation of corresponding bottom rollers for load-bearing. During use, the bottom rollers are easily subjected to significant eccentric forces. Ordinary limiting devices are difficult to effectively limit the bottom rollers, causing them to easily shift under stress during furnace movement. Excessive shifting can damage the roller shaft, reduce the load-bearing capacity of the bottom rollers, and increase the risk of the furnace tipping over, resulting in serious economic losses and significant safety hazards. Furthermore, the connection between the furnace and the bottom rollers can easily develop gaps due to the high internal pressure of the furnace, leading to leakage of high-temperature gas or dust. To address these issues, a limiting device for the bottom rollers of sliding sealing furnaces is proposed. Utility Model Content
[0004] To address the aforementioned technical problems, a limiting device for the bottom roller of a sliding sealing furnace is provided. This solves the problem that current sliding sealing furnaces require the installation of corresponding bottom rollers for load-bearing. During use, the bottom roller is easily subjected to large eccentric forces, and general limiting devices are difficult to effectively limit its movement. The bottom roller is prone to displacement during the movement of the sliding sealing furnace, and the roller shaft is easily damaged due to excessive displacement. This reduces the load-bearing capacity of the bottom roller and makes the sliding sealing furnace prone to tipping over, causing serious economic losses. At the same time, it poses significant safety hazards. During use, gaps can easily form at the connection between the sliding sealing furnace and the bottom roller due to the high internal pressure of the sliding sealing furnace, which can easily lead to the leakage of high-temperature gas or dust.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a limiting device for a sliding sealing furnace bottom roller, comprising a support, a pressure push rod fixedly installed on the right side of the support, a fixed frame fixedly connected to the middle position of the front and rear sides of the support, a fastening threaded rod threadedly connected to the upper center position of the fixed frame, a knob fixedly connected to the upper side of the fastening threaded rod, the lower end of the fastening threaded rod penetrating the upper side of the fixed frame and rotatably connected to a first arc-shaped limiting plate, sliding rods slidably connected to both the front and rear sides of the fixed frame, a fixed plate fixedly connected to the outer side of the sliding rod, a spring sleeved on the surface of the sliding rod, the end of the spring away from the support fixedly connected to the inner side of the fixed plate, the end of the spring near the support fixedly connected to the outer side of the fixed frame, the end of the sliding rod penetrating the outer side of the fixed frame and fixedly connected to a second arc-shaped limiting plate, and a handle fixedly connected to the center position of the outer side of the fixed plate.
[0006] Preferably, the output end of the pressure push rod is fixedly connected to a connecting plate, and the upper left end of the connecting plate is fixedly connected to a connecting rod.
[0007] Preferably, a pressure plate is fixedly connected to the left side of the connecting rod, and an integrated stress sensor sheet is provided inside the left side of the pressure plate.
[0008] Preferably, the upper side of the support is provided with an arc-shaped groove, and a bottom roller is provided on the arc-shaped groove.
[0009] Preferably, telescopic rods are fixedly connected to both the front and rear ends of the upper side of the first arc-shaped limiting plate, and the upper side of the telescopic rods is fixedly connected to the lower side of the top plate of the fixed frame.
[0010] Preferably, an integrated stress sensor sheet is provided inside the lower side of the first arc-shaped limiting plate.
[0011] Preferably, a laser rangefinder is fixedly installed on the lower outer side of the second arc-shaped limiting plate.
[0012] Compared with the prior art, the advantages of this utility model are as follows: By setting a fixed frame, a fastening threaded rod, a first arc-shaped limiting plate, a sliding rod, a fixed plate, a spring, and a second arc-shaped limiting plate, this utility model can effectively limit the bottom roller, prevent the bottom roller from shifting under force during the movement of the sliding sealing furnace, avoid damage to the roller shaft due to excessive offset, prevent the bottom roller's load-bearing capacity from decreasing, prevent the sliding sealing furnace from tipping over, and prevent serious economic losses. At the same time, it effectively reduces safety hazards. By setting a pressure push rod, a connecting plate, a connecting rod, and a pressure plate, a certain pressure can be applied to the bottom roller when limiting it, improving the sealing performance at the connection between the sliding sealing furnace and the bottom roller, preventing gaps caused by high internal pressure in the sliding sealing furnace, and avoiding leakage of high-temperature gas or dust. Attached Figure Description
[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0014] Figure 2 This is the right view of the present invention.
[0015] The numbers on the map are:
[0016] 1. Support; 2. Arc groove; 3. Bottom roller; 4. Pressure push rod; 5. Connecting plate; 6. Connecting rod; 7. Pressure plate; 8. Fixing frame; 9. Fastening threaded rod; 10. Knob; 11. First arc-shaped limiting plate; 12. Telescopic rod; 13. Slide rod; 14. Fixing plate; 15. Spring; 16. Second arc-shaped limiting plate; 17. Handle; 18. Laser rangefinder. Detailed Implementation
[0017] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.
[0018] Reference Figure 1-2 As shown, a limiting device for a sliding sealing furnace bottom roller includes a support 1. An arc-shaped groove 2 is provided on the upper side of the support 1, and a bottom roller 3 is provided on the arc-shaped groove 2. A pressure push rod 4 is fixedly installed on the right side of the support 1. A connecting plate 5 is fixedly connected to the output end of the pressure push rod 4. A connecting rod 6 is fixedly connected to the upper left side of the connecting plate 5. A pressure plate 7 is fixedly connected to the left side of the connecting rod 6. An integrated stress sensor is provided inside the left side of the pressure plate 7 to effectively monitor the pressure on the bottom roller 3 in the left and right directions.
[0019] Specifically, a fixed frame 8 is fixedly connected to the middle of the front and rear sides of the support 1. A fastening threaded rod 9 is threadedly connected to the upper center of the fixed frame 8. A knob 10 is fixedly connected to the upper side of the fastening threaded rod 9. The lower end of the fastening threaded rod 9 passes through the upper side of the fixed frame 8 and is rotatably connected to a first arc-shaped limiting plate 11, which effectively limits the bottom roller 3 in the vertical direction. An integrated stress sensor is installed inside the lower side of the first arc-shaped limiting plate 11 to effectively monitor the pressure on the bottom roller 3 in the vertical direction. Telescopic rods 12 are fixedly connected to both the front and rear ends of the upper side of the first arc-shaped limiting plate 11. The upper side of the telescopic rod 12 is fixedly connected to the lower side of the top plate of the fixed frame 8 to limit the position of the first arc-shaped limiting plate 11 and prevent the first arc-shaped limiting plate 11 from rotating with the fastening threaded rod 9.
[0020] Specifically, sliding rods 13 are slidably connected to both the front and rear sides of the fixed frame 8. A fixed plate 14 is fixedly connected to the outer side of the sliding rod 13. A spring 15 is sleeved on the surface of the sliding rod 13. The end of the spring 15 away from the support 1 is fixedly connected to the inner side of the fixed plate 14, and the end of the spring 15 near the support 1 is fixedly connected to the outer side of the fixed frame 8. The end of the sliding rod 13 passes through the outer side of the fixed frame 8 and is fixedly connected to a second arc-shaped limiting plate 16, which effectively limits the bottom roller 3 in the front and rear direction. A handle 17 is fixedly connected to the center position of the outer side of the fixed plate 14. A laser rangefinder 18 is fixedly installed at the lower outer side of the second arc-shaped limiting plate 16, which effectively monitors the distance between the front and rear ends of the bottom roller 3 and the inner side of the fixed frame 8.
[0021] Working principle: After the bottom roller 3 is connected to the sliding sealing furnace, it is placed on the arc groove 2. When the handle 17 is released, under the elastic force of the spring 15, the second arc-shaped limiting plate 16 moves inward and applies pressure to the bottom roller 3 from both front and rear directions to prevent the bottom roller 3 from shifting in the front and rear directions. If it is subjected to a large bias force, the bottom roller 3 will shift, and the distance between the laser rangefinders 18 at both ends and the fixed frame 8 will change. The laser rangefinders 18 will transmit the monitoring data to the control terminal in real time and remind the staff that the bottom roller 3 has shifted. Turning the knob 10 and the fastening threaded rod 9 drives the first arc-shaped limiting plate 11 to move downward and abut against the upper side of the bottom roller 3, increasing the pressure on the bottom roller 3 in the vertical direction and effectively limiting the bottom roller 3. At the same time, the pressure push rod 4 drives the connecting plate 5 and the connecting rod 6 to move to the left, and the pressure plate 7 applies a certain pressure to the side of the bottom roller 3, which can effectively improve the sealing of the connection between the bottom roller 3 and the sliding sealing furnace and prevent the leakage of high-temperature gas or dust.
[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A limiting device for a sliding sealing furnace bottom roller, comprising a support (1), characterized in that: A pressure push rod (4) is fixedly installed on the right side of the support (1). A fixed frame (8) is fixedly connected to the middle of the front and rear sides of the support (1). A fastening threaded rod (9) is threadedly connected to the upper center of the fixed frame (8). A knob (10) is fixedly connected to the upper side of the fastening threaded rod (9). The lower end of the fastening threaded rod (9) passes through the upper side of the fixed frame (8) and is rotatably connected to a first arc-shaped limiting plate (11). Sliding rods (13) are slidably connected to both the front and rear sides of the fixed frame (8). A fixing plate (14) is fixedly connected to the outside of the rod (13). A spring (15) is sleeved on the surface of the sliding rod (13). The end of the spring (15) away from the support (1) is fixedly connected to the inside of the fixing plate (14). The end of the spring (15) close to the support (1) is fixedly connected to the outside of the fixing frame (8). The end of the sliding rod (13) passes through the outside of the fixing frame (8) and is fixedly connected to a second arc-shaped limiting plate (16). A handle (17) is fixedly connected at the center of the outside of the fixing plate (14).
2. The limiting device for a sliding sealing furnace bottom roller according to claim 1, characterized in that: The output end of the pressure push rod (4) is fixedly connected to a connecting plate (5), and the upper left side of the connecting plate (5) is fixedly connected to a connecting rod (6).
3. The limiting device for a sliding sealing furnace bottom roller according to claim 2, characterized in that: A pressure plate (7) is fixedly connected to the left side of the connecting rod (6), and an integrated stress sensor sheet is provided inside the left side of the pressure plate (7).
4. The limiting device for a sliding sealing furnace bottom roller according to claim 1, characterized in that: An arc-shaped groove (2) is provided on the upper side of the support (1), and a bottom roller (3) is provided on the arc-shaped groove (2).
5. The limiting device for a sliding sealing furnace bottom roller according to claim 1, characterized in that: The first arc-shaped limiting plate (11) has telescopic rods (12) fixedly connected to both the front and rear ends of its upper side. The upper side of the telescopic rods (12) is fixedly connected to the lower side of the top plate of the fixed frame (8).
6. The limiting device for a sliding sealing furnace bottom roller according to claim 1, characterized in that: An integrated stress sensor sheet is provided inside the lower side of the first arc-shaped limiting plate (11).
7. A limiting device for a sliding sealing furnace bottom roller according to claim 1, characterized in that: A laser rangefinder (18) is fixedly installed on the lower outer side of the second arc-shaped limiting plate (16).