Safe heat insulation device for online replacement of coke oven stop hook bolt

Abstract

The utility model discloses a safe heat insulation device for online replacement of a coke oven stop hook bolt, which relates to the technical field of coke oven equipment maintenance and comprises a heat insulation support plate, a heat insulation layer and a holding piece, and the heat insulation layer is used for being fixedly connected to the counter-fire side of the heat insulation support plate; one end of the holding piece is rotatably connected with the top end of the heat insulation supporting plate so that an operator can hold and drive the heat insulation supporting plate to move, then the heat insulation layer abuts against the furnace door frame corresponding to the gear hook bolt needing to be replaced, the structure is simple, use is convenient, the heat insulation performance is effective, the labor intensity of workers is reduced, and the working efficiency is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of coke oven equipment maintenance technology, and in particular to a safety and heat insulation device for online replacement of coke oven retaining hook bolts. Background Technology

[0002] In the field of coke oven equipment maintenance technology, online replacement of coke oven retaining hook bolts is a critical and challenging task. Coke oven doors rely on retaining hooks fixed to the door frame for periodic opening and closing. This frequent operation causes the door and retaining hook to collide with each other over a long period, eventually leading to the retaining hook bolts being prone to breakage, thus necessitating online replacement.

[0003] Existing insulation measures for replacing retaining hook bolts have several drawbacks. Most current technologies use a single-layer insulation blanket with water glass applied to the edges, which is then adhered to the furnace frame from top to bottom. This method provides poor insulation; when the furnace head temperature exceeds 1000℃, the back of the insulation blanket can still reach over 300℃, failing to effectively block high-temperature radiation. Furthermore, the insulation blanket's installation is not secure, easily detaching during operation, affecting insulation effectiveness and potentially posing a safety threat to workers. The harsh high-temperature working environment necessitates frequent worker rotations, negatively impacting maintenance quality. Additionally, after maintenance, some insulation blanket residue remains on the furnace frame upon removal, requiring time and effort to clean, forcing extended downtime for maintenance and increasing production losses and costs.

[0004] Therefore, there is an urgent need for an innovative technical solution that can effectively address the above problems in order to improve the safety, efficiency, and quality of online replacement of coke oven hook bolts. Utility Model Content

[0005] The purpose of this utility model is to provide a safe and heat-insulating device for online replacement of coke oven hook bolts, so as to solve the problems existing in the prior art. It has a simple structure, is easy to use, has effective heat insulation performance, reduces the labor intensity of workers, and effectively improves work efficiency.

[0006] To achieve the above objectives, this utility model provides the following solution:

[0007] This utility model provides a safety heat insulation device for online replacement of coke oven retaining hook bolts, including: a heat insulation support plate, a heat insulation layer, and a holding member. The heat insulation layer is used to be fixedly connected to the fire-facing side of the heat insulation support plate. One end of the holding member is rotatably connected to the top end of the heat insulation support plate so that the operator can hold and drive the heat insulation support plate to move, thereby bringing the heat insulation layer against the furnace door frame part corresponding to the retaining hook bolt that needs to be replaced.

[0008] Preferably, the heat insulation layer is a zirconium-containing ceramic fiber blanket.

[0009] Preferably, the heat insulation support plate is a metal plate, and the fire-facing side of the metal plate is fully coated with adhesive to bond and fix it to the zirconium-containing ceramic fiber blanket.

[0010] Preferably, the metal plate has a length of 260cm, a width of 65cm, and a thickness of 2mm.

[0011] Preferably, it also includes multiple screws, multiple nuts, and multiple washers. The metal plate is uniformly provided with multiple first through holes, and the zirconium-containing ceramic fiber blanket is uniformly provided with multiple second through holes. The screws pass through the first through holes, the second through holes, the washers, and the nuts to be threadedly connected to fix the zirconium-containing ceramic fiber blanket to the metal plate.

[0012] Preferably, the diameters of the first through hole and the second through hole are both 6 mm, the diameter of the screw is 5 mm, and the outer diameters of the washer and the nut are both greater than 7 mm.

[0013] Preferably, the gripping member includes a gripping rod and a rotating shaft, one end of the gripping rod is vertically fixedly connected to the middle of the rotating shaft, and the rotating shaft is rotatably connected to the middle of the top of the metal plate.

[0014] Preferably, it further includes a first sleeve and a second sleeve, the first sleeve and the second sleeve being coaxially and fixedly connected to the middle of the top end of the metal plate, one end of the rotating shaft being inserted into the first sleeve for rotatable connection with the first sleeve, and the other end being inserted into the second sleeve for rotatable connection with the second sleeve.

[0015] Preferably, the gripping rod is a threaded steel bar with a diameter of 16mm and a length of 260cm, the rotating shaft is a threaded steel bar with a diameter of 16mm and a length of 30cm, the gripping rod is welded to the rotating shaft, and the first sleeve and the second sleeve are both metal sleeves with an inner diameter of 18mm and a length of 10cm.

[0016] The present invention achieves the following technical advantages over the prior art:

[0017] This utility model provides a safety and heat insulation device for online replacement of coke oven retaining hook bolts. The heat insulation device has a clear and reasonable structure. The heat insulation support plate provides a stable support foundation for the heat insulation layer, and the rotating connection design of the handle allows the operator to move the heat insulation device flexibly and conveniently, so that it can accurately abut against the furnace door frame part corresponding to the retaining hook bolt that needs to be replaced. This greatly improves the convenience of operation and effectively enhances work efficiency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A schematic diagram of the safety and heat insulation device for online replacement of coke oven hook bolts provided by this utility model;

[0020] In the diagram: 1. Insulation support plate; 2. Insulation layer; 3. Screw; 4. First sleeve; 5. Second sleeve; 6. Shaft; 7. Holding rod. 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. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] The purpose of this utility model is to provide a safe and heat-insulating device for online replacement of coke oven hook bolts, so as to solve the problems existing in the prior art. It has a simple structure, is easy to use, has effective heat insulation performance, reduces the labor intensity of workers, and effectively improves work efficiency.

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] This utility model provides a safety and heat insulation device for online replacement of coke oven retaining hook bolts, such as... Figure 1 As shown, the device includes: a heat-insulating support plate 1, a heat-insulating layer 2, and a handle. The heat-insulating layer 2 is fixedly connected to the fire-facing side of the heat-insulating support plate 1. One end of the handle is rotatably connected to the top of the heat-insulating support plate 1, allowing the operator to hold and move the heat-insulating support plate 1, thereby bringing the heat-insulating layer 2 against the furnace door frame where the retaining hook bolt needs to be replaced. The structure of the heat insulation device is clear and reasonable. The heat-insulating support plate 1 provides a stable support foundation for the heat-insulating layer 2. The rotatable connection design of the handle allows the operator to move the heat insulation device flexibly and conveniently, enabling it to accurately abut against the furnace door frame where the retaining hook bolt needs to be replaced, greatly improving operational convenience and effectively increasing work efficiency.

[0025] In a preferred embodiment, the heat insulation layer 2 is a zirconium-containing ceramic fiber blanket. The zirconium-containing ceramic fiber blanket has good heat insulation performance, which can effectively block the high temperature radiation of the coke oven, significantly reduce the temperature of the working environment, ensure the safety and comfort of the operators, and greatly improve the protection against high temperature when replacing the hook bolt.

[0026] In a preferred embodiment, the heat insulation support plate 1 is a metal plate. The fire-facing side of the metal plate is fully coated with adhesive to bond and fix it to the zirconium-containing ceramic fiber blanket. As the heat insulation support plate 1, the metal plate has good strength and stability, and can reliably support the zirconium-containing ceramic fiber blanket. By fully coating the fire-facing side of the metal plate with adhesive and bonding it to the zirconium-containing ceramic fiber blanket, the connection between the two is firm, effectively preventing the heat insulation layer 2 from detaching or shifting under harsh environments such as high temperature and vibration, ensuring that the heat insulation device can continuously and stably perform its heat insulation function.

[0027] In a preferred embodiment, the metal plate is 260cm long, 65cm wide, and 2mm thick. This specific size of the metal plate can be well adapted to the size of the coke oven door frame, providing a suitable support area for the zirconium-containing ceramic fiber blanket. It can effectively cover the area that needs protection without affecting operation and heat insulation performance due to being too large or too small. The appropriate thickness also ensures that the metal plate has sufficient strength to support the heat insulation layer 2, while not adding unnecessary weight due to excessive thickness, making it convenient for operators to carry and operate the heat insulation device.

[0028] In a preferred embodiment, the safety insulation device for online replacement of coke oven hook bolts further includes multiple screws 3, multiple nuts, and multiple washers. The metal plate is uniformly provided with multiple first through holes, and the zirconium-containing ceramic fiber blanket is uniformly provided with multiple second through holes. The screws 3 pass through the first through holes, second through holes, washers, and nuts, and are threadedly connected to fix the zirconium-containing ceramic fiber blanket to the metal plate. The combined use of the screws 3, nuts, and washers further strengthens the connection between the zirconium-containing ceramic fiber blanket and the metal plate. Compared to simple bonding, this mechanical connection method can better resist the effects of material expansion and contraction under high-temperature environments, ensuring that the insulation layer 2 and the support plate remain tightly bonded under frequent use and complex environments, stably and reliably performing their insulation function.

[0029] In a preferred embodiment, the diameters of both the first and second through holes are 6 mm, the screw 3 has a diameter of 5 mm, and the outer diameters of the washer and nut are both greater than 7 mm. The specific diameters of the through holes and screw 3 ensure smooth installation of the screw 3 through the metal plate and the zirconium-containing ceramic fiber blanket without causing excessive damage to the materials. The larger outer diameters of the washer and nut provide a larger contact area, enhancing the tightening effect of the nut and preventing the screw 3 from loosening, thereby ensuring the stability of the zirconium-containing ceramic fiber blanket fixed to the metal plate.

[0030] In a preferred embodiment, the handle includes a gripping rod 7 and a rotating shaft 6. One end of the gripping rod 7 is vertically and fixedly connected to the middle of the rotating shaft 6, and the rotating shaft 6 is rotatably connected to the middle of the top of the metal plate. This structural design makes the handle easy for the operator to grip and allows for flexible rotation via the rotating shaft 6. The gripping rod 7 provides the operator with a point of leverage, allowing the operator to easily apply force to move the heat insulation device. The rotatable connection between the rotating shaft 6 and the top of the metal plate allows the heat insulation device to be flexibly adjusted in angle during installation and use, better fitting the furnace door frame and improving the heat insulation effect and ease of operation.

[0031] In a preferred embodiment, the safety insulation device for online replacement of coke oven hook bolts further includes a first sleeve 4 and a second sleeve 5. The first sleeve 4 and the second sleeve 5 are coaxially fixedly connected to the top center of the metal plate. One end of the rotating shaft 6 is inserted into the first sleeve 4 for rotatable connection, and the other end is inserted into the second sleeve 5 for rotatable connection. The first sleeve 4 and the second sleeve 5 serve to position and support the rotating shaft 6, making the rotating shaft 6 more stable and smooth during rotation. The coaxial fixing method ensures the center consistency of the rotating shaft 6 during rotation, reducing shaking and offset. This stable rotating connection not only extends the service life of the rotating structure between the holding part and the insulation support plate 1, but also further improves the accuracy and convenience of operation, allowing operators to adjust the angle of the insulation device more easily and accurately.

[0032] In a preferred embodiment, the gripping rod 7 is made of threaded steel with a diameter of 16mm and a length of 260cm, and the rotating shaft 6 is made of threaded steel with a diameter of 16mm and a length of 30cm. The gripping rod 7 and the rotating shaft 6 are welded together. The first sleeve 4 and the second sleeve 5 are both metal sleeves with an inner diameter of 18mm and a length of 10cm. The specific dimensions of the threaded steel and the metal sleeves ensure the strength and durability of the gripping components. The appropriate diameter and length meet the strength requirements during operation, preventing easy deformation or damage under stress, while also ensuring a moderate weight for easy gripping and operation by the operator for extended periods. The welded connection ensures a firm connection between the gripping rod 7 and the rotating shaft 6. The 18mm inner diameter metal sleeve and the 16mm diameter threaded steel ensure the flexibility and stability of the rotating connection, further enhancing the reliability and practicality of the entire heat insulation device during operation.

[0033] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A safety and heat insulation device for online replacement of coke oven hook bolts, characterized in that: include: Thermal insulation support plate, A heat insulation layer, which is used to be fixedly connected to the fire-facing side of the heat insulation support plate; as well as A holding member, one end of which is rotatably connected to the top of the heat insulation support plate so that the operator can hold and move the heat insulation support plate, thereby bringing the heat insulation layer against the furnace door frame part corresponding to the part where the retaining hook bolt needs to be replaced.

2. The safety and heat insulation device for online replacement of coke oven hook bolts according to claim 1, characterized in that: The insulation layer is a zirconium-containing ceramic fiber blanket.

3. The safety and heat insulation device for online replacement of coke oven hook bolts according to claim 2, characterized in that: The heat insulation support plate is a metal plate, and the fire-facing side of the metal plate is fully coated with adhesive to bond and fix it to the zirconium-containing ceramic fiber blanket.

4. The safety and heat insulation device for online replacement of coke oven hook bolts according to claim 3, characterized in that: The metal plate is 260cm long, 65cm wide, and 2mm thick.

5. The safety and heat insulation device for online replacement of coke oven hook bolts according to claim 4, characterized in that: It also includes multiple screws, multiple nuts, and multiple washers. The metal plate is uniformly provided with multiple first through holes, and the zirconium-containing ceramic fiber blanket is uniformly provided with multiple second through holes. The screws pass through the first through holes, the second through holes, the washers, and the nuts to be threadedly connected to fix the zirconium-containing ceramic fiber blanket to the metal plate.

6. The safety and heat insulation device for online replacement of coke oven hook bolts according to claim 5, characterized in that: The diameters of the first through hole and the second through hole are both 6 mm, the diameter of the screw is 5 mm, and the outer diameters of the washer and the nut are both greater than 7 mm.

7. The safety and heat insulation device for online replacement of coke oven hook bolts according to claim 6, characterized in that: The gripping component includes a gripping rod and a rotating shaft. One end of the gripping rod is vertically and fixedly connected to the middle of the rotating shaft, and the rotating shaft is rotatably connected to the middle of the top of the metal plate.

8. The safety and heat insulation device for online replacement of coke oven hook bolts according to claim 7, characterized in that: It also includes a first sleeve and a second sleeve, which are coaxially and fixedly connected to the top center of the metal plate. One end of the rotating shaft is inserted into the first sleeve for rotatable connection with the first sleeve, and the other end is inserted into the second sleeve for rotatable connection with the second sleeve.

9. The safety and heat insulation device for online replacement of coke oven hook bolts according to claim 8, characterized in that: The gripping rod is a threaded steel bar with a diameter of 16mm and a length of 260cm, and the rotating shaft is a threaded steel bar with a diameter of 16mm and a length of 30cm. The gripping rod is welded to the rotating shaft. The first sleeve and the second sleeve are both metal sleeves with an inner diameter of 18mm and a length of 10cm.

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