Transverse iron clamp for online replacement of oven door frame of coke oven
By designing the horizontal iron fixture for replacing the furnace door frame online for coke oven, the overall extraction of the furnace door and the furnace door frame is achieved, complex and high-cost problems in the existing technology are solved, production efficiency and safety are improved, and equipment losses are reduced.
Patent Information
- Application Number
- CN202422063592.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-23
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-08-23
AI Technical Summary
The existing method of replacing the door frame of the coke oven online is complex and costly, with safety risks, and the aging of the sealing material leads to a lax seal, which affects the production safety of coke oven and environmental pollution.
Design a horizontal iron fixture for replacing the furnace door frame of the coke oven online, and combine the furnace door horizontal iron and the furnace door hook lock into a whole through the fixture. The furnace door and the furnace door frame are extracted as a whole by using the coke oven mechanical equipment to avoid long-term positioning and hoisting operations in traditional methods.
It shortens the replacement time of furnace door frames, improves production efficiency, reduces costs, reduces equipment losses and safety risks, and ensures sealing effect.
Smart Images
Figure CN223129888U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of coke ovens, in particular to a cross iron clamp for online replacement of the oven door frame of a coke oven. Background Art
[0002] During the production process of a coke oven, the oven door is frequently removed, and the oven door frame is impacted by external forces. The oven door frame is in a high-temperature environment for a long time and is deformed due to thermal stress. Due to various reasons, the sealing filler between the oven door frame and the oven head or the protection plate ages, loosens, and falls off. The burning and deformation of the sealing material of the coke oven door frame result in poor fitting between the oven door frame and the coke oven protection plate, causing fire and smoke leakage from the non-tight part between the protection plate and the oven door frame during the production of the coke oven. The smoke will seriously pollute the environment; the fire will burn the steel column, causing the steel column to deform and seriously affecting the long life and safety of the coke oven.
[0003] The existing method for replacing the oven door frame is very complicated. For online replacement of the oven door frame and sealing treatment, the on-line oven door frame is removed by a truck crane, and the replacement and sealing treatment are completely offline. The above method has a high replacement cost. For the newly replaced oven door frame, there are problems such as long positioning time due to the shaking of the truck crane, high cost, and safety risks in hoisting operations.
[0004] Therefore, there is a need for improvement in the fixture for online replacement of the oven door frame in the prior art. Summary of the Utility Model
[0005] In view of this, the purpose of the embodiment of the utility model is to provide a cross iron clamp for online replacement of the oven door frame of a coke oven. By the action of the clamp, the cross iron of the oven door and the oven door hook are locked into a whole, and the oven door and the oven door frame are combined into a whole by using the door removing trolley of the coke oven pusher car or the coke oven catcher car, and the oven door frame and the oven door are taken out together by the force of the door removing trolley, so as to realize online replacement of the oven door frame or treatment of the oven frame seal.
[0006] Based on the above purpose, the embodiment of the utility model provides a cross iron clamp for online replacement of the oven door frame of a coke oven, including:
[0007] A clamp body, a first pressing plate, and a second pressing plate. Two through holes are provided on each pressing plate. The clamp body includes a top and first extension parts, second extension parts, third extension parts, and fourth extension parts extending downward from the four corners of the top. A screw is connected to the end of each extension part, and a detachable fastener is provided at the free end of each screw. The screws of the first extension part and the second extension part pass through the through holes of the first pressing plate and are locked by the fasteners. The screws of the third extension part and the fourth extension part pass through the through holes of the second pressing plate and are locked by the fasteners.
[0008] In some embodiments, the diameter of the through hole is greater than or equal to the diameter of the screw.
[0009] In some embodiments, the screw rod is detachably connected to each extension part.
[0010] In some embodiments, an external thread is provided at the connecting end of the screw rod away from the free end, each extension part is provided with a screw rod groove matching the screw rod, and an internal thread is machined in the screw rod groove.
[0011] In some embodiments, the screw rod and each extension part are connected by a snap connection.
[0012] In some embodiments, the free end of the screw rod has an external thread, and the fastener is a nut.
[0013] In some embodiments, the edge of the top is provided with a chamfer.
[0014] In some embodiments, a clamping groove is formed between the first extension part and the third extension part, and the width of the clamping groove is greater than or equal to the width of the cross iron of the furnace door.
[0015] In some embodiments, the fixture body is integrally formed steel.
[0016] In some embodiments, the pressing plate is in the shape of a rounded rectangle.
[0017] The utility model has at least the following beneficial technical effects:
[0018] The cross iron of the furnace door is clamped by the extension part of the cross iron fixture, and the furnace door hook is pressed tightly by the pressing plate to combine the cross iron of the furnace door and the furnace door hook into a whole and lock them. Then, the door taking trolley of the coke pusher or the coke guide car is used to extract the furnace door and the furnace door frame as a whole, avoiding the long-time positioning and hoisting operations of the truck crane in the traditional method, thus greatly shortening the shutdown time for replacing the furnace door frame and improving the overall production efficiency of the coke oven. The cross iron fixture is easy to disassemble and install, facilitating the inspection, cleaning and replacement of the furnace door frame and the sealing components during daily maintenance. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model, and for those of ordinary skill in the art, other embodiments can be obtained based on these drawings without creative efforts.
[0020] Figure 1 It is the front view of the embodiment of the cross iron fixture provided by the present utility model;
[0021] Figure 2 It is the side view of the embodiment of the cross iron fixture provided by the present utility model;
[0022] Figure 3 Schematic diagram of the pressing plate provided by the present utility model;
[0023] Figure 4 Schematic diagram of the usage state of the cross iron fixture provided by the present utility model.
[0024] Explanation of the reference numerals in the drawings:
[0025] 1. Fixture body; 1.1 Top; 1.2 First extension part; 1.3 Second extension part; 1.4 Third extension part; 1.5 Fourth extension part; 2. Furnace door cross iron; 3. Screw; 4. First pressing plate; 5. Second pressing plate; 6. Through hole; 7. Nut; 8. Furnace door hook. Specific embodiments
[0026] In order to make the objectives, technical solutions and advantages of the present utility model more clear and understandable, the following further elaborates on the embodiments of the present utility model in detail with reference to specific embodiments and the accompanying drawings.
[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs; the terms used in this specification are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. For example, the terms "length", "width", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or position based on the orientation or position shown in the drawings, which is only for convenience of description and cannot be construed as a limitation to the technical solution of the present application.
[0028] The terms "including" and "having" and any variations thereof in the description and claims of the present utility model and the above description of the drawings are intended to cover non-exclusive inclusion; the terms "first", "second", etc. in the description and claims of the present utility model or the above drawings are used to distinguish different objects and are not used to describe a specific order. The meaning of "a plurality" is two or more unless otherwise specifically defined.
[0029] In the description and claims of the present utility model and the above description of the drawings, when an element is referred to as being "fixed to" or "mounted on" or "disposed on" or "connected to" another element, it can be directly or indirectly located on that other element. For example, when an element is referred to as being "connected to" another element, it can be directly or indirectly connected to that other element.
[0030] In addition, the mention of "embodiment" in this text means that the specific features, structures or characteristics described in connection with the embodiment can be included in at least one embodiment of the present utility model. The occurrence of this phrase at various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.
[0031] The coke oven frame belongs to one of the coke oven furnace protection iron parts. With the development of the large-scale coke oven, the on-line replacement of the oven frame has always been a technical problem after the coke oven is put into production.
[0032] The oven door cross iron is an important part connecting the oven door and the oven door frame. It spans across the oven door and is fixed on the oven door hook. The oven door cross iron is usually made of strong metal materials to bear the weight of the oven door and its attached equipment and the pressure generated during the working process. The main function of the oven door cross iron is to ensure that the oven door can fit tightly on the oven door frame when closed, so as to achieve the sealing of the carbonization chamber. The oven door cross iron also provides additional support and stability for the oven door through its structural design and fixing method. The oven door hook is used to support the oven door cross iron fixed on the oven door. When the oven door cross iron is lifted by an external device to disengage it from the oven door hook, the oven door can be opened.
[0033] For the original coke oven, when replacing the oven door frame and sealing treatment on-line, the on-line oven door frame is removed by a truck crane, and the replacement and sealing treatment are carried out completely offline. The above method has a relatively high replacement cost. After the coke oven is put into production, the temperature of the carbonization chamber is about 1100 °C. When the truck crane replaces or processes the oven frame, the hook and wire rope are in a high-temperature environment for a long time, and there is a great operation safety risk.
[0034] Therefore, the present utility model provides a cross iron clamp for on-line replacement of the oven door frame of a coke oven, as Figures 1 to 3 shown, including:
[0035] A clamp body 1, a first pressing plate 4 and a second pressing plate 5. Two through holes 6 are provided on each pressing plate. The clamp body 1 includes a top 1.1 and first extension parts 1.2, second extension parts 1.3, third extension parts 1.4 and fourth extension parts 1.5 extending downward from the four corners of the top. A screw 3 is connected to the end of each extension part. A detachable fastener is provided at the free end of each screw 3. The screws 3 of the first extension part 1.2 and the second extension part 1.3 pass through the through holes 6 of the first pressing plate 4 and are locked by the fasteners. The screws 3 of the third extension part 1.4 and the fourth extension part 1.5 pass through the through holes 6 of the second pressing plate 5 and are locked by the fasteners.
[0036] As Figure 1 shown, the front view of the embodiment of the cross iron clamp shows the first extension part 1.2 and the third extension part 1.4. As Figure 4 shown, it is forFigure 1 Schematic diagram of the reverse perspective state, showing the second extension portion 1.3 and the fourth extension portion 1.5.
[0037] Furthermore, the diameter of the through hole 4.1 is greater than or equal to the diameter of the screw 3. The through hole 4.1 can just fit with the screw 3, or can be slightly larger than the diameter of the screw 3 to facilitate its movement in the direction of the screw 3.
[0038] Furthermore, the screw 3 is detachably connected to each extension portion. In some embodiments, external threads are provided at the ends of the screw 3, and each extension portion is provided with a screw groove matching the screw 3, and internal threads are machined in the screw groove. As Figure 1 can be seen from the figure, the screw 3 is partially screwed into the extension portion for connection with the extension portion. The advantages of threaded connection are strong load-bearing capacity. Threaded connection has excellent load-bearing capacity and can withstand large tensile and shear forces; good fastening performance. Once screwed tightly, the connection part is not easy to loosen, ensuring the stability and reliability of the connection. Easy to disassemble. Special threaded tools can be used to conveniently disassemble and reinstall, facilitating maintenance and replacement. In some other embodiments, it can also be set as a tenon connection, by matching the tenons on the screw and the grooves on the extension portion for connection. This connection method is convenient for assembly and disassembly and has high flexibility. In addition, it can also be a bolt connection. Bolt connection is a method of fastening two parts together through bolts and nuts, but this method requires corresponding through holes to be provided on the extension end and the screw, and then tightened and fixed through bolts and nuts. Or, the screw is connected to the first extension portion and the second extension portion by snap connection. Multiple connection methods that can achieve detachable connection are within the protection scope of this application.
[0039] Furthermore, the free end of the screw 3 has external threads, and the fastener is a nut 5. When the fixture is clamped on the cross iron of the coke oven door and the hook of the coke oven door, it is tightened and locked by rotating the position of the nut. The setting of the thread can freely adjust the tightening degree according to the position of the hook, suitable for the application of furnace door hooks of various sizes.
[0040] Furthermore, the edge of the top 1.1 is provided with a bevel, as Figure 1 shown. The bevel design makes the contact between the fixture and the furnace door hook closer, reducing the gap caused by shape mismatch, thereby improving the assembly accuracy. And the bevel design helps to increase the contact area between the fixture and the furnace door hook, further enhancing the stability of the overall structure and reducing loosening or falling off caused by vibration or external forces.
[0041] Furthermore, a card slot is formed between the first extension portion 1.2 and the third extension portion 1.4, and the width of the card slot is greater than or equal to the width of the cross iron 2 of the furnace door, so that the cross iron can be quickly clamped into the card slot.
[0042] Further, the fixture body is integrally formed steel.
[0043] Further, the pressing plate is rounded rectangle-shaped.
[0044] Further, the width of the fixture body is determined according to the specific dimensions of the furnace door hook and the furnace door cross iron, and the specific dimensions of the fixture are determined. The material is Q235 or other steel, and the nuts and pressing plates are made of high-strength materials to ensure the use strength.
[0045] The usage method of this device is as follows: As Figure 4 shown, engage the furnace door cross iron 2 in the card slot between the first extension 1.2 and the third extension 1.4, slip the first pressing plate 4 onto the screw rods of the first extension 1.2 and the second extension 1.3, slip the second pressing plate 5 onto the screw rods of the third extension 1.4 and the fourth extension 1.5, and adjust the positions of the two pressing plates so that they abut against the bottom of the furnace door hook 6. After determining the position, tighten the nut 5. At this time, the coke oven furnace door cross iron and the coke oven furnace door hook are combined into a whole by the fixture, and the coke oven machinery such as the coke guide car or the coke pusher car's door taking trolley is used to remove the furnace door and the furnace frame as a whole, realizing the on-line replacement of the coke oven furnace frame.
[0046] The advantage of this device compared with the traditional method is that the traditional method of replacing the furnace frame may require separate disassembly of the furnace door and the furnace frame, which is a cumbersome and time-consuming process. By using the method of removing the whole at once, the furnace door and the furnace frame can be taken off simultaneously, greatly shortening the replacement time. In addition, it can reduce equipment wear. Frequent separate disassembly and installation may cause additional wear to the furnace door and the furnace frame. The overall removal reduces these operations, helps to extend the service life of the equipment, and thus reduces the replacement cost. In addition, it also avoids the long-time positioning and hoisting operations of the truck crane in the traditional method, thus greatly shortening the downtime of the furnace door frame replacement.
[0047] The above are the exemplary embodiments disclosed by the present invention. However, it should be noted that various changes and modifications can be made without departing from the scope of the embodiments disclosed by the present invention defined by the claims. The functions, steps, and / or actions of the method claims according to the disclosed embodiments herein do not need to be executed in any specific order. In addition, although the elements disclosed by the embodiments of the present invention can be described or claimed in individual form, they can also be understood as plural unless clearly limited to the singular.
[0048] It should be understood that, as used herein, unless the context clearly supports exceptions, the singular form "a" is also intended to include the plural form. It should also be understood that the "and / or" used herein refers to any and all possible combinations including one or more of the related listed items.
[0049] The serial numbers of the disclosed embodiments of the present utility model are only for description and do not represent the advantages or disadvantages of the embodiments.
[0050] Those of ordinary skill in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the disclosure of the embodiments of the present utility model (including the claims) is limited to these examples; under the concept of the embodiments of the present utility model, the technical features in the above embodiments or different embodiments can also be combined, and there are many other variations in different aspects of the embodiments of the present utility model as described above, which are not provided in detail for the sake of brevity. Therefore, any omission, modification, equivalent replacement, improvement, etc. made within the spirit and principle of the embodiments of the present utility model shall be included within the protection scope of the embodiments of the present utility model.
Claims
1. A horizontal iron fixture for online replacement of the furnace door frame of a coke oven, characterized in that, Comprising: A fixture body, a first pressing plate, and a second pressing plate. Two through holes are provided on each pressing plate. The fixture body includes a top and first, second, third, and fourth extension parts extending downward from the four corners of the top. A screw is connected to the end of each extension part, and a detachable fastener is provided at the free end of each screw. The screws of the first and second extension parts pass through the through holes of the first pressing plate and are locked by the fasteners. The screws of the third and fourth extension parts pass through the through holes of the second pressing plate and are locked by the fasteners.
2. The cross iron clamp for online replacement of the oven door frame of a coke oven according to claim 1, characterized in that, The diameter of the through hole is greater than or equal to the diameter of the screw.
3. The cross iron clamp for online replacement of the oven door frame of the coke oven according to claim 1, characterized in that, The screw is detachably connected to each of the extension parts.
4. The cross iron clamp for online replacement of the oven door frame of the coke oven according to claim 3, characterized in that, An external thread is provided at the connecting end of the screw away from the free end. Each extension part is provided with a screw groove matching the screw, and an internal thread is machined in the screw groove.
5. The cross iron clamp for online replacement of the oven door frame of the coke oven according to claim 3, characterized in that, The screw is connected to each extension part by a snap connection.
6. The cross iron fixture for online replacement of the oven door frame of a coke oven according to claim 1, characterized in that, The free end of the screw has an external thread, and the fastener is a nut.
7. The cross iron clamp for online replacement of the oven door frame according to claim 1, characterized in that, The edge of the top is provided with an oblique angle.
8. The cross iron clamp for online replacement of the oven door frame according to claim 1, characterized in that, A clamping groove is formed between the first extension part and the third extension part, and the width of the clamping groove is greater than or equal to the width of the cross iron of the furnace door.
9. The cross iron clamp for online replacement of the oven door frame of a coke oven according to claim 1, characterized in that, The fixture body is made of integrally formed steel.
10. The cross iron clamp for online replacement of the oven door frame according to claim 1, characterized in that, The pressing plate is in the shape of a rectangular with rounded corners.