Combined fire-resistant sealing gasket and casting equipment
By designing a combined fire-resistant sealing gasket, the disassembly connection of the frame, intermediate frame and locking parts is solved, and the problems of difficulty in splicing and poor sealing of the fire-resistant sealing gasket in the high temperature environment in the prior art are solved, achieving higher sealing accuracy and safety, reducing material loss.
Patent Information
- Application Number
- CN202323620959.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-28
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2033-12-28
AI Technical Summary
In existing casting equipment, the refractory sealing gasket is large and soft, and it is difficult to take and place as a whole, resulting in poor sealing, which increases the impact of the quality of copper liquid and casting billets, and there is a safety risk for manual splicing in high temperature environments.
A combined refractory sealing gasket is designed, including a frame, an intermediate frame, a first refractory plate, a second refractory plate and a locking member. It is pre-combined into a complete sealing gasket through the disassembly connection of the locking member, which is lightweight and high-strength , facilitates rapid installation and replacement, reducing the risk of manual operation in high temperature environments.
Improves the assembly accuracy and safety of the sealing gasket, reduces the situation of poor sealing, reduces the safety risks of workers, and the intermediate frame and frame are reusable, saving materials.
Smart Images
Figure CN222307347U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of casting, in particular to a combined refractory sealing pad and casting equipment. Background Art
[0002] In the current horizontal continuous casting and rolling process for producing air-conditioning copper tubes, most production lines use a separate equipment configuration scheme for the melting furnace and the casting furnace. That is, a set of melting and casting production lines usually uses a casting furnace and two melting furnaces. The two melting furnaces are set on both sides of the casting furnace, and the overall arrangement is symmetrical in a triangular shape. After all the room temperature copper raw materials are added to the melting furnace, high-power electric induction heating is used to melt the copper material and reach the required temperature range. After the temperature is reached, low-power insulation is used and kept for a certain period of time for degassing. After degassing is completed, by controlling the hydraulic system of the melting furnace converter, the two melting furnaces take turns to send a part of the copper liquid in the furnace (about 12 tons in a full furnace) (usually about 2-3 tons / time·hour) through the submerged flow channel and the pouring port into the graphite guide trough, and then pour it into the casting furnace. The copper liquid in the casting furnace maintains a small power through an electromagnetic inductor to maintain a small temperature fluctuation. After the casting copper liquid passes through the casting crystallizer and the casting water cooling system for continuous heat transfer, it is cooled in the first-level cooling shell of the crystallizer, and then further crystallized and formed in the secondary cooler before being pulled out of the secondary cooler. This crystallization and cooling process is carried out continuously to form the required casting billet.
[0003] The casting pipe of the melting furnace is connected to the graphite guide trough, and the graphite guide trough is connected to the casting furnace. An intermediate box is provided on the casting furnace. The outer shell of the graphite guide trough abuts against the intermediate box to achieve sealing, and the intermediate box and the casting furnace also need to be sealed. For this reason, a refractory sealing gasket is filled between the existing flow channel intermediate box and the top of the rear chamber of the casting furnace to improve the sealing performance. However, due to the large size of the sealing surface, the volume of the entire sealing gasket is large, and the sealing gasket is difficult to take and place as a whole due to its softness. When used, multiple splicing gaskets are usually spliced into a whole large sealing gasket. However, when replacing the sealing gasket, it is necessary to manually place and splice it on the top of the rear chamber of the casting furnace. The area near the casting furnace is a high-temperature area, and it is difficult to manually control the placement and splicing of the sealing gasket at high temperature, and there are safety risks. Therefore, poor sealing and air leakage often occur due to gaps in the sealing gasket, which increases the oxygen content in the outer shell of the rear chamber of the casting furnace and the graphite guide trough, affecting the quality of the copper liquid and the ingot. Utility Model Content
[0004] The utility model aims to overcome the shortcomings and deficiencies in the prior art and provide a combined refractory sealing pad and casting equipment.
[0005] An embodiment of the utility model provides a combined fire-resistant sealing pad, comprising: a frame, an intermediate frame, a first fire-resistant board, a second fire-resistant board and a plurality of locking members;
[0006] The frame is arranged around the intermediate skeleton, and the intermediate skeleton is provided with an escape port for the passage of molten metal and a plurality of mesh holes evenly arranged around the escape port. The first refractory plate and the second refractory plate are respectively arranged on opposite sides of the intermediate skeleton, and the first refractory plate and the second refractory plate are both arranged around the escape port. Part of the locking piece is passed through the mesh holes, and the first refractory plate and the second refractory plate are detachably connected to the intermediate skeleton via the locking piece.
[0007] In some optional embodiments, the first fire-resistant board and the second fire-resistant board both include a plurality of splicing boards, and the plurality of splicing boards are arranged in sequence around the avoidance.
[0008] In some optional embodiments, the frame and the middle frame are surrounded to form two positioning grooves respectively located on opposite sides of the middle frame, and the first fire-resistant board and the second fire-resistant board are respectively arranged in the two positioning grooves.
[0009] In some optional embodiments, the frame and the intermediate skeleton are integrally formed by riveting or welding.
[0010] In some optional embodiments, the frame and the intermediate skeleton are detachably connected via a plurality of screws.
[0011] In some optional embodiments, the locking member includes a metal wire, the ends of which are passed through the first fire-resistant board, the mesh and the second fire-resistant board so that the first fire-resistant board, the mesh and the second fire-resistant board are bound and locked by the metal wire.
[0012] In some optional embodiments, the first fire-resistant board and / or the second fire-resistant board is a fire-resistant fiber wool board.
[0013] Another embodiment of the utility model provides a casting device, comprising: a casting furnace, a guide structure and a combined refractory sealing gasket as described above, wherein the combined refractory sealing gasket is arranged between the casting furnace and the guide structure, the first refractory plate abuts the guide structure, and the second refractory plate abuts the casting furnace.
[0014] In some optional embodiments, the guide structure includes an intermediate box body and two guide components, the intermediate box body has a bottom opening, the bottom opening is connected to the casting furnace through the avoidance port, the guide component includes an outer shell and a guide groove, the outer shell is connected to the intermediate box body, the guide groove is arranged in the outer shell and extends toward the bottom opening.
[0015] In some optional embodiments, the casting furnace includes a bracket, a furnace body and a rotary drive assembly, the furnace body is rotatably arranged on the bracket, the rotary drive assembly is drive-connected to the furnace body, the guide assembly is arranged on the bracket and is located above the furnace body, and cooperates with the furnace body to clamp the combined refractory sealing pad.
[0016] Compared with the prior art, the combined refractory sealing gasket of the utility model can be pre-assembled into a complete sealing gasket, which is light in weight, has high structural strength, is easy to manufacture, and workers can quickly perform placement operations, thereby improving safety and sealing gasket assembly accuracy and improving work efficiency; in addition, the intermediate skeleton and frame can also be reused.
[0017] In order to more clearly understand the present invention, the specific implementation of the present invention will be described below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a schematic structural diagram of a combined fire-resistant sealing pad according to an embodiment of the utility model;
[0019] Figure 2 This is a schematic structural diagram of a frame and an intermediate skeleton of an embodiment of the utility model;
[0020] Figure 3 An exploded view of a combined fire-resistant sealing gasket according to an embodiment of the utility model;
[0021] Figure 4 for Figure 3 An enlarged view of point A is shown;
[0022] Figure 5 A cross-sectional view of a casting device according to an embodiment of the present invention;
[0023] Figure 6 This is a schematic structural diagram of a casting device according to another embodiment of the utility model when installing a combined refractory sealing gasket.
[0024] Description of reference numerals:
[0025] 10. frame; 20. middle frame; 21. avoidance; 22. mesh; 23. positioning groove; 30. first refractory board; 31. splicing board; 40. second refractory board; 50. casting furnace; 51. bracket; 52. furnace body; 53. rotary drive assembly; 60. guide structure; 61. middle box body; 62. outer box body; 63. guide groove; DETAILED DESCRIPTION
[0026] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. In the description of the utility model, unless otherwise specified, "multiple" means 2 or more, and "several" means 1 or more. In addition, unless otherwise specified, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated.
[0027] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0028] See also Figure 1 An embodiment of the utility model provides a combined fire-resistant sealing pad, including: a frame 10, an intermediate skeleton 20, a first fire-resistant board 30, a second fire-resistant board 40 and a plurality of locking members (not shown).
[0029] See also Figure 2 The frame 10 is arranged around the middle frame 20, and the middle frame 20 is provided with an escape opening 21 for the molten metal to pass through and a plurality of meshes 22 evenly arranged around the escape opening 21. The meshes 22 make the middle frame 20 lighter and facilitate the installation of the locking piece.
[0030] See also Figure 3 , the first fireproof board 30 and the second fireproof board 40 are respectively arranged on opposite sides of the middle frame 20, and the first fireproof board 30 and the second fireproof board 40 are arranged around the avoidance opening 21. Part of the locking member is inserted into the mesh 22, and the first fireproof board 30 and the second fireproof board 40 are detachably connected to the middle frame 20 through the locking member, so that the first fireproof board 30 and the second fireproof board 40 are conveniently replaced, and the middle frame 20 and the frame 10 can be reused, effectively reducing the loss. The combined fireproof sealing gasket can pre-assemble the first fireproof board 30 and the second fireproof board 40 to the middle frame 20, and then be installed by workers.
[0031] The specific structure of the first fire-resistant board 30 and the second fire-resistant board 40 can be designed according to actual needs. For example, in some optional embodiments, the first fire-resistant board 30 and the second fire-resistant board 40 both include a plurality of splicing boards 31, and the plurality of splicing boards 31 are arranged in sequence around the avoidance opening 21. Since the area to be sealed is large, the fire-resistant board is produced and transported in the form of a plurality of splicing boards. Through the support of the intermediate skeleton 20 and the frame 10 and the locking of the locking parts, the fire-resistant board can be accurately installed and positioned precisely to avoid gaps between the splicing boards 31 and air leakage.
[0032] See also Figure 4 In some optional embodiments, the frame 10 and the intermediate skeleton 20 are surrounded to form two positioning grooves 23 respectively located on opposite sides of the intermediate skeleton 20, and the first fire-resistant board 30 and the second fire-resistant board 40 are respectively arranged in the two positioning grooves 23. The positioning grooves 23 can preliminarily locate the positions of the first fire-resistant board 30 and the second fire-resistant board 40, thereby improving the assembly accuracy of the first fire-resistant board 30 and the second fire-resistant board 40.
[0033] The assembly method of the frame 10 and the intermediate frame 20 can be designed according to actual needs. For example, in this embodiment, the frame 10 and the intermediate frame 20 are integrally formed by riveting or welding. In some other optional embodiments, the frame 10 and the intermediate frame 20 can be detachably connected by multiple screws, so that when the frame 10 or the intermediate frame 20 is damaged, it can be replaced instead of replacing the frame 10 and the intermediate frame 20 together, which is conducive to saving materials.
[0034] The structure of the locking member can be designed according to actual needs. For example, in some optional embodiments, the locking member includes a metal wire, the end of which is passed through the first fireproof board 30, the mesh 22, and the second fireproof board 40 so that the first fireproof board 30, the mesh 22, and the second fireproof board 40 are tied and locked by the metal wire. The metal wire can be tied in a manner that: the metal wire passes through the first fireproof board 30, the mesh 22, and the second fireproof board 40 in sequence, then bends, and then passes through the second fireproof board 40, another mesh 22, and the first fireproof board 30 in sequence, and finally the metal wire itself is twisted and tightened, so that the first fireproof board 30 and the second fireproof board 40 are both locked on the intermediate skeleton 20. Of course, the metal wire can also be tied in other ways, such as a single metal wire only ties the first fireproof board 30 or the second fireproof board 40 to the intermediate skeleton 20. There are many ways to tie objects with metal wires, and the principles are well known to those skilled in the art, and will not be repeated here. Of course, the structure of the locking member is not limited thereto, and those skilled in the art may also select other suitable structures according to the teachings of the present utility model.
[0035] The specific material of the fire-resistant board can be designed according to actual needs. For example, in some optional embodiments, the first fire-resistant board 30 and / or the second fire-resistant board 40 is a fire-resistant fiber wool board.
[0036] See also Figure 5 The above-mentioned combined refractory sealing gasket can be used in casting equipment, which includes: a casting furnace 50, a guide structure 60 and a combined refractory sealing gasket as mentioned above, the combined refractory sealing gasket is arranged between the casting furnace 50 and the guide structure 60, the first refractory plate 30 abuts the guide structure 60, the second refractory plate 40 abuts the casting furnace 50, the combined refractory sealing gasket is clamped between the casting furnace 50 and the guide structure 60 to achieve sealing, and the copper liquid flowing out of the guide structure 60 enters the casting furnace 50 after passing through the avoidance port 21.
[0037] The specific structure of the guide structure 60 can be designed according to actual needs. For example, in some optional embodiments, the guide structure 60 includes an intermediate box body 61 and two guide components. The intermediate box body 61 has a bottom opening, and the bottom opening is connected to the casting furnace 50 through the avoidance port 21. The guide component includes an outer shell 62 and a guide groove 63. The outer shell 62 is connected to the intermediate box body 61. The guide groove 63 is arranged in the outer shell 62 and extends toward the bottom opening.
[0038] See also Figure 6 In order to facilitate the replacement of the combined refractory gasket and to facilitate the compression of the combined refractory gasket, in some optional embodiments, the casting furnace 50 includes a bracket 51, a furnace body 52 and a rotary drive assembly 53, the furnace body 52 is rotatably arranged on the bracket 51, the rotary drive assembly 53 is drivingly connected to the furnace body 52, and the flow guide assembly is arranged on the bracket 51 and is located above the furnace body 52, and cooperates with the furnace body 52 to clamp the combined refractory gasket. When replacing the combined refractory gasket, the rotary drive assembly 53 turns the furnace body 52 downward so that the furnace body 52 is away from the middle box 61 of the flow guide structure 60, and then the combined refractory gasket can be taken out, and then a new combined refractory gasket is placed on the furnace body 52, and the furnace body 52 is turned upward so that the combined refractory gasket on the top of the furnace body 52 is pressed against the middle box 61 of the flow guide structure 60, so as to achieve the compression and fixation of the combined refractory gasket.
[0039] The specific structure of the rotary drive component 53 can be designed according to actual needs. For example, the rotary drive component 53 is a driving cylinder, and its output shaft is rotationally matched with the furnace body 52.
[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A combined refractory sealing gasket, characterized in that: include: A frame, an intermediate frame, a first fire-resistant board, a second fire-resistant board and a plurality of locking members; The frame is arranged around the intermediate skeleton, and the intermediate skeleton is provided with an escape port for the passage of molten metal and a plurality of mesh holes evenly arranged around the escape port. The first refractory plate and the second refractory plate are respectively arranged on opposite sides of the intermediate skeleton, and the first refractory plate and the second refractory plate are both arranged around the escape port. Part of the locking piece is passed through the mesh holes, and the first refractory plate and the second refractory plate are detachably connected to the intermediate skeleton via the locking piece.
2. A combined refractory sealing gasket according to claim 1, characterized in that: The first fire-resistant board and the second fire-resistant board both include a plurality of splicing boards, and the plurality of splicing boards are arranged in sequence around the avoidance opening.
3. The combined refractory sealing gasket according to claim 1, characterized in that: The frame and the middle frame are surrounded to form two positioning grooves respectively located on two opposite sides of the middle frame, and the first fire-resistant board and the second fire-resistant board are respectively arranged in the two positioning grooves.
4. The combined refractory sealing gasket according to claim 1, characterized in that: The frame and the intermediate frame are integrally formed by riveting or welding.
5. The combined refractory sealing gasket according to claim 1, characterized in that: The frame and the intermediate frame are detachably connected via a plurality of screws.
6. A combined refractory sealing gasket according to any one of claims 1 to 5, characterized in that: The locking member comprises a metal wire, the ends of which are passed through the first fire-resistant board, the mesh and the second fire-resistant board so that the first fire-resistant board, the mesh and the second fire-resistant board are bound and locked by the metal wire.
7. A combined refractory sealing gasket according to any one of claims 1 to 5, characterized in that: The first fire-resistant board and / or the second fire-resistant board are fire-resistant fiber wool boards.
8. A casting device, characterized in that: include: A casting furnace, a flow guide structure and a combined refractory sealing gasket as described in any one of claims 1 to 7, wherein the combined refractory sealing gasket is arranged between the casting furnace and the flow guide structure, the first refractory plate abuts the flow guide structure, and the second refractory plate abuts the casting furnace.
9. A casting device according to claim 8, characterized in that: The guide structure includes an intermediate box body and two guide components. The intermediate box body has a bottom opening, and the bottom opening is connected to the casting furnace through the avoidance port. The guide component includes an outer shell and a guide groove. The outer shell is connected to the intermediate box body. The guide groove is arranged in the outer shell and extends toward the bottom opening.
10. A casting device according to claim 9, characterized in that: The casting furnace includes a bracket, a furnace body and a rotating drive assembly. The furnace body is rotatably arranged on the bracket. The rotating drive assembly is drivingly connected to the furnace body. The guide assembly is arranged on the bracket and is located above the furnace body, and cooperates with the furnace body to clamp the combined refractory sealing pad.