A coke can bottom gate lining plate safety replacement device
By installing lifting frames and electric chain hoist columns in the lower part of the dry quenching coke maintenance substation, the coke tank and bottom gate liner can be replaced efficiently, solving the problems of high cost and time delay caused by the need for heavy cranes in the existing technology, and improving the replacement efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIANG YUAN XIAN HONG DA MEI HUA YOU XIAN GONG SI
- Filing Date
- 2025-08-22
- Publication Date
- 2026-07-31
AI Technical Summary
In the existing technology, the replacement of the bottom gate liner of the coke tank requires the use of a heavy crane, which results in high production costs and delays in maintenance time.
A safe replacement device for the bottom gate liner of a coke tank is designed and installed at the bottom of the dry quenching maintenance bridge. It uses a lifting frame, an electric chain hoist, and other structures to simulate the position of the coke tank car, so as to achieve efficient replacement of the coke tank and the bottom gate liner.
Liner replacement can be completed without a crane, reducing production costs and replacement time, improving replacement efficiency, and preventing coke tank misalignment.
Smart Images
Figure CN224578218U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coking oven technology, and more specifically, to a safety replacement device for the bottom gate liner of a coke oven. Background Technology
[0002] Among the five major coking tank cars, the dry quenching coke tank is the equipment that carries coke into the dry quenching furnace for transfer. Its internal lining is made of heat-resistant and wear-resistant material and is replaced every 4-6 months under normal production frequency. When replacing it, the coke tank needs to be lifted out by a crane and placed on the maintenance rack, and then the new coke tank is lifted and transported to the coke tank car, which delays the maintenance time by about 2-3 hours. Each time the lining of the coke tank is replaced, a heavy-duty crane is required, which will generate a lot of costs and increase the company's production costs.
[0003] Therefore, there is an urgent need for a safe replacement device for the bottom gate liner of coke ovens to solve the above problems. Utility Model Content
[0004] To overcome the aforementioned deficiencies of the prior art, embodiments of this utility model provide a safe replacement device for the bottom gate liner of a coke tank. This utility model is installed at the lower part of the dry quenching coke maintenance platform. The maintenance platform was originally used for replacing steel wire ropes. The replacement device now simulates the position of the coke tank car and is used for replacing the coke tank and the bottom gate liner, which is more efficient and solves the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a safety replacement device for a coke oven bottom gate liner, comprising a coke oven, a lifting frame provided on the outside of the coke oven, a hanging lug on the top of the lifting frame connected to a hook on a hoist, guide pulleys provided on both sides of the lifting frame, electric chain hoist columns provided on both sides of the coke oven, a coke oven fixed pulley bracket provided on both sides of the coke oven for the up and down movement of the guide pulleys, a lifting frame support frame provided at the bottom of the lifting frame, a movable block provided at the top of the lifting frame support frame, coke oven support frames provided on both sides of the bottom of the coke oven, bottom gate support frames provided on both sides of the bottom end of the coke oven, a foundation provided at the bottom of the bottom gate support frame, an electric hoist provided at the top of the electric chain hoist column, and a hook on the electric hoist hooking onto a connecting piece in the lower middle part of the lifting frame when the lifting frame is on the movable block.
[0006] Furthermore, the coke oven fixed pulley bracket and the electric chain hoist column are located on the same support plate. Electric chain hoist columns are installed on both sides of the support plate, and the coke oven fixed pulley bracket is installed between the electric chain hoist columns. The coke oven fixed pulley bracket includes two parallel coke oven fixed pulley bracket columns. The top of the columns is connected to a crossbeam. The columns are used to guide the pulley to move up and down, preventing the coke oven from deviating when moving up and down.
[0007] Preferably, the two parallel coke can fixing pulley support columns are equipped with bracket diagonal braces on their outer sides.
[0008] Furthermore, the lifting frame support frame consists of four lifting frame support frame columns, with the top of the lifting frame support frame columns located at the bottom of the lifting frame.
[0009] Furthermore, the coke can support frame is composed of support members located on both sides of the coke can. The support members are provided with a support platform at the bottom, and coke can support frame columns are provided on both sides of the top of the support platform. A crossbeam is installed on the top of the coke can support frame columns.
[0010] Furthermore, the bottom gate support frame includes four support columns, and a quadrilateral frame is installed on the top of the four support columns, with the bottom gate placed precisely in the center of the quadrilateral frame.
[0011] This utility model, through the inclusion of a lifting frame, a lifting frame support frame, and a coke can support frame, allows it to be installed at the lower part of the dry quenching coke maintenance platform. The maintenance platform, originally used for replacing wire ropes, now features a replacement device that simulates the position of the coke can car for replacing coke cans and bottom gate liners, resulting in high efficiency. Each time a coke can liner needs to be replaced, the coke can is simply lifted onto this utility model by a lifting machine. The opening and closing of the bottom gate is controlled by an electric hoist, and the liner replacement can be completed once the bottom gate is open, eliminating the need for crane transport, reducing crane costs, and lowering production costs for the enterprise. When using this utility model to replace coke cans, the lifting and lowering of the coke can is guided by a coke can fixing pulley bracket, reducing deviation during replacement and saving time. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0013] Figure 2 This is a schematic side view of the overall structure of this utility model.
[0014] The attached diagram is labeled as follows: 1. Coke tank; 2. Electric chain hoist column; 3. Coke tank fixed pulley bracket; 4. Bracket diagonal brace; 5. Lifting frame; 6. Lifting frame support frame; 7. Coke tank support frame; 8. Bottom gate support frame; 9. Foundation; 10. Electric hoist; 11. Guide pulley; 12. Movable block; 13. Hanging lug. Detailed Implementation
[0015] 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.
[0016] As attached Figure 1-2 As shown, the safety replacement device for the bottom gate liner of the coke oven in this embodiment includes a coke oven 1. A lifting frame 5 is provided on the outside of the coke oven 1. The lug 13 at the top of the lifting frame 5 is connected to the hook on the hoist. A lifting frame support frame 6 is provided at the bottom of the lifting frame 5. Electric chain hoist columns 2 are provided on both sides of the coke oven 1. Coke oven fixed pulley brackets 3 for the up and down movement of guide pulleys are provided on both sides of the coke oven 1. A movable block is provided at the top of the lifting frame support frame 6. Coke oven support frames 7 are provided on both sides of the bottom of the coke oven 1. Bottom gate support frames 8 are provided on both sides of the bottom end of the coke oven 1. A foundation 9 is provided at the bottom of the bottom gate support frame 8. An electric hoist 10 is provided at the top of the electric chain hoist column 2. The hook on the electric hoist 10 hooks onto the connecting piece in the lower part of the lifting frame 5 when the lifting frame 5 is on the movable block.
[0017] Furthermore, the bottom of the coke oven fixed pulley bracket 3 and the electric chain hoist column 2 are located on the same support plate. Electric chain hoist columns 2 are installed on both sides of the support plate. The coke oven fixed pulley bracket is installed between the electric chain hoist columns 2. The coke oven fixed pulley bracket 3 includes two parallel coke oven fixed pulley bracket columns. The top of the coke oven fixed pulley bracket columns is connected to a crossbeam. The coke oven fixed pulley bracket columns are used to guide the pulley 11 to move up and down.
[0018] Preferably, the two parallel coke can fixing pulley support columns are equipped with support diagonal braces 4 on their outer sides.
[0019] Furthermore, the lifting frame support frame 6 is composed of four lifting frame support frame columns, with the tops of the four lifting frame support frame columns located at the bottom of the lifting frame 5.
[0020] Furthermore, the coke can support frame 7 is composed of support members located on both sides of the coke can. The bottom of the support member is provided with a support platform, and coke can support frame columns are respectively provided on both sides of the top of the support platform. A crossbeam is installed on the top of the coke can support frame columns.
[0021] Furthermore, the bottom gate support frame 8 includes four support frame columns, and a quadrilateral frame is installed on the top of the four support frame columns, with the bottom gate placed precisely in the center of the quadrilateral frame.
[0022] The working principle of this utility model is as follows: When using this utility model, if it is necessary to replace the coke can 1, the hoist hooks the lug on the lifting frame 5 from the coke can car, transports it to the maintenance section, and lowers it. During the descent of the lifting frame 5, the pulleys on both sides of the lifting frame 5 are located inside the coke can pulley fixing frame 3 to prevent the coke can 1 from deviating during descent. After the lifting frame 5 descends to the movable block at the top of the lifting frame support frame 6, the large hook of the hoist opens, the hook on the electric hoist 10 hooks the lug on the lifting frame 5, and the coke can 1 is lifted up, so that the coke can 1 is away from the large hook of the hoist. The movable block 12 is removed, and then the coke can 1 is lowered down, so that the coke can 1 is placed on the lifting frame support frame 6. The bottom of tank 1 is located on the coke tank support frame 7, and the bottom gate is located on the bottom gate support frame. This allows the bottom gate to be opened for replacement of the gate plate inside coke tank 1. During the replacement process, the opening and closing degree of the bottom gate can be controlled by raising or lowering the electric hoist 10. The electric chain hoist column 2, which supports the weight of the electric chain hoist lifting frame 5 and the bottom gate, is used to raise the hoist hook. Four independent columns are used. The coke tank fixed pulley bracket 3 is parallel to the maintenance support bracket of the dry quenching coke hoist to ensure that the coke tank 1 remains stable after falling out of the hoist. The bracket diagonal brace 4 is used to reinforce the coke tank due to its large weight. The coke tank lifting frame 5 is used to cooperate with the dry quenching coke hoist hook to lift the hoist. Support frame 6 supports the weight of lifting frame 5 and is at the same height as the coke tank car. Coke tank support 7 supports the weight of coke tank 1 and is at the same height as the rotating platform of the coke tank car. Bottom gate support frame 8 is used to support the bottom gate to a certain opening after being hoisted to a suitable height by electric hoist 10. Liner is replaced. Foundation 9 is made of steel plate and is at the same level as the coke tank car. Electric hoist 10 consists of four 10-ton electric chain hoists. The signals are uniformly led out to one-button operation to control the lifting of coke tank lifting frame 5. After the dry quenching coke elevator is lowered to the support position of coke tank 1, it is used to lower lifting frame 5 to ensure that the large hook can be easily removed when the elevator rises. After the elevator lowers coke tank 1 along the maintenance chute, it first passes through the lifting... The parallel pulley fixing frame 5 is used to lower the coke tank 1 onto the support frame after it falls along the track. The hoist will then lift the coke tank lifting frame 5 and continue to fall. At this time, the chain hoist is connected to the coke tank 1 lifting frame 5 and fixed. The hoist continues to fall and the large hook is opened. At this time, the electric chain hoist is operated to start falling. After the large hook is opened, the hoist rises back to the main lifting frame 5. Then, as needed, the electric chain hoist is used to raise and lower the lifting frame 5 to open and close the bottom gate angle of the coke tank 1. This allows the utility model to be installed at the lower part of the dry quenching coke maintenance bridge. The maintenance bridge was originally used to replace the wire rope. Now, the replacement device installed simulates the position of the coke tank car and is used to replace the coke tank and the bottom gate liner, which is more efficient.
[0023] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change. Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other. Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A safety replacement device for the bottom gate liner of a coke oven, comprising a coke oven (1), wherein a lifting frame (5) is provided on the outside of the coke oven (1), the top lug of the lifting frame (5) is connected to a hook on a hoist, and guide pulleys (11) are respectively provided on both sides of the lifting frame, characterized in that: Electric chain hoisting columns (2) are provided on both sides of the coke tank (1). Coke tank fixed pulley brackets (3) for guide pulleys (11) to move up and down are provided on both sides of the coke tank (1). Lifting frame support frame (6) is provided at the bottom of the lifting frame (5). Movable block is provided at the top of the lifting frame support frame (6). Coke tank support frame (7) is provided on both sides of the bottom of the coke tank (1). Bottom gate support frame (8) is provided on both sides of the bottom end of the coke tank (1). Foundation (9) is provided at the bottom of the bottom gate support frame (8). Electric hoist (10) is provided at the top of the electric chain hoisting column (2). The hook on the electric hoist (10) hooks onto the connecting part in the lower part of the lifting frame (5) when the lifting frame (5) is on the movable block.
2. A safe changing device for a coke can bottom gate lining plate according to claim 1, characterized in that: The bottom of the coke oven fixed pulley bracket (3) and the electric chain hoist column (2) are located on the same support plate. Electric chain hoist columns (2) are installed on both sides of the support plate. The coke oven fixed pulley bracket is installed between the electric chain hoist columns (2). The coke oven fixed pulley bracket (3) includes two parallel coke oven fixed pulley bracket columns. The top of the coke oven fixed pulley bracket columns is connected to a crossbeam. The coke oven fixed pulley bracket columns are used to guide the pulley (11) to move up and down.
3. The safety replacement device for the bottom gate liner of a coke oven according to claim 2, characterized in that: The two parallel coke can fixed pulley support columns are equipped with support diagonal bracing (4).
4. The safe changing device for the coke pot bottom gate lining plate according to claim 1, characterized in that: The lifting frame support frame (6) consists of four lifting frame support frame columns, with the top of the lifting frame support frame columns located at the bottom of the lifting frame (5).
5. The safe changing device for the bottom gate lining plate of a coke tank according to claim 1, characterized in that: The coke tank support frame (7) is composed of support members located on both sides of the coke tank. The support members are provided with a support platform at the bottom and coke tank support frame columns are provided on both sides of the top of the support platform. A crossbeam is installed on the top of the coke tank support frame columns.
6. The safe changing device for the bottom gate lining of a coke pot according to claim 1, characterized in that: The bottom gate support frame (8) includes four support frame columns, and a quadrilateral frame is installed on the top of the four support frame columns. The bottom gate is placed in the center of the quadrilateral frame.