Combined latch plate

Abstract

The invention provides a combined latch plate which comprises a main latch plate and an auxiliary latch plate, the width of one end of the main latch plate is larger than that of the other end of the main latch plate in the length direction of the main latch plate, the width of one end of the auxiliary latch plate is larger than that of the other end of the auxiliary latch plate in the length direction of the auxiliary latch plate, and one bevel edge of the auxiliary latch plate is attached to the bevel edge of the main latch plate. The small opening end of the main bolt plate and the large opening end of the auxiliary bolt plate are located on the same side, the main bolt plate and the auxiliary bolt plate are connected to form a combined plate, and the combined plate is of a trapezoid or right trapezoid structure. The disassembly mode is changed from upward stress disassembly of the bolt to downward stress disassembly, the whole disassembly process is simple and rapid, the labor intensity of workers is reduced, damage to the bolt hole is avoided in the disassembly process, meanwhile, continuous iron notch matching of the blast furnace is avoided, and a guarantee is provided for stable and smooth operation of the blast furnace.

Description

Technical Field

[0001] The present invention relates to the field of component equipment, and particularly to a combined plug board. Background Art

[0002] The muzzle and the nozzle of the blast furnace hydraulic clay gun are connecting devices of the clay gun. To prevent pressure relief and mud leakage during the process of plugging the blast furnace tuyere with mud, the connection between the nozzle and the muzzle needs to be tight. Plug holes are designed on both sides of the nozzle and the muzzle, and they are assembled with each other to form a combined plug hole that is larger at the top and smaller at the bottom. Then, a plug board that is larger at the top and smaller at the bottom is inserted into the combined plug hole from top to bottom to play the role of connecting and fastening the nozzle and the muzzle. Affected by the thermal expansion and contraction of the high temperature in front of the furnace, the plug board is tightly in the plug hole;

[0003] When replacing the nozzle, it is necessary to disassemble a single plug board and then separate the nozzle from the muzzle. This process is completely completed manually. Due to the structural limitation of the combined plug hole formed by the nozzle and the muzzle that is larger at the top and smaller at the bottom, only the disassembly method from bottom to top can be adopted. The distance between the bottom of a single plug and the ground is about 400 mm, and only the upward force application method can be used for disassembly. Often, it is also necessary to cut the plug in the plug hole with oxygen-acetylene to reduce the friction force of the plug in the plug hole, and cooperate with the long-term manual operation of hitting the bottom of the plug with a sledgehammer to slowly remove the plug board. The total time for disassembling the plug board is about 2 hours, which is time-consuming and the labor intensity of workers is high. In addition, the blast furnace needs to take measures of continuous iron tapping from the other tuyere to cooperate with the replacement of the nozzle, which affects the normal production mode of the blast furnace, and the continuous iron tapping from a single tuyere has an impact on the stable operation of the blast furnace. At the same time, the method of cutting the plug with oxygen-acetylene is very likely to damage the plug hole body itself, posing a hidden danger to the equipment. Summary of the Invention

[0004] In view of the above-mentioned disadvantages of the prior art, the purpose of the present invention is to provide a combined plug board to solve the technical problems of difficult disassembly of the plug board, time-consuming and laborious in the prior art.

[0005] To achieve the above purpose and other related purposes, the present invention provides a combined plug board, including:

[0006] A main plug board, one end of the main plug board has a width greater than that of the other end along its length direction;

[0007] A sub-plug board, one end of the sub-plug board has a width greater than that of the other end along its length direction;

[0008] One hypotenuse of the sub-plug board is attached to the hypotenuse of the main plug board, and the small-end of the main plug board and the large-end of the sub-plug board are on the same side;

[0009] The main plug board and the sub-plug board are connected to form a combined board, and the combined board is in a trapezoidal or right-trapezoidal structure.

[0010] The advantages of adopting the above technical solution are as follows: the replacement time of the mud gun nozzle is saved, the disassembly method is changed from the upward force-bearing disassembly of the pin to the downward force-bearing disassembly method, the whole disassembly process is simple and fast, the labor intensity of workers is reduced, the damage to the pin hole is avoided during the disassembly process, and at the same time, the cooperation of continuous tapping of the blast furnace iron notch is avoided, providing guarantee for the stable and smooth operation of the blast furnace.

[0011] Optionally, the secondary pin plate is a right trapezoidal plate, and the hypotenuse of the secondary pin plate is parallel and mutually attached to any hypotenuse of the main pin plate.

[0012] Optionally, a chamfer is provided at the edge where the main pin plate is attached to the secondary pin plate.

[0013] Optionally, a chamfer is provided at the edge where the secondary pin plate is attached to the main pin plate.

[0014] Optionally, both the main pin plate and the secondary pin plate are of metal structure.

[0015] Optionally, the contact surfaces of the main pin plate and the secondary pin plate are in sliding fit.

[0016] Optionally, both the main pin plate and the secondary pin plate are of integrally formed structure.

[0017] As described above, a combined pin plate of the present invention has the following beneficial effects: the replacement time of the mud gun nozzle is saved, the disassembly method is changed from the upward force-bearing disassembly of the pin to the downward force-bearing disassembly method, the whole disassembly process is simple and fast, the labor intensity of workers is reduced, the damage to the pin hole is avoided during the disassembly process, and at the same time, the cooperation of continuous tapping of the blast furnace iron notch is avoided, providing guarantee for the stable and smooth operation of the blast furnace. Brief Description of the Drawings

[0018] Figure 1 It shows a schematic structural diagram in an embodiment of the present invention;

[0019] Figure 2 It shows Figure 1 the right view of.

[0020] Description of Part Numbers

[0021] 1 Main pin plate

[0022] 2 Secondary pin plate Detailed Embodiment

[0023] The following uses specific specific examples to illustrate the implementation manners of the present invention. Those skilled in the art can easily understand the other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation manners. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0024] Please refer to Figures 1 to 2 . It should be noted that the diagrams provided in this embodiment only illustrate the basic concept of the present invention in a schematic manner. The diagrams only show the components related to the present invention, rather than being drawn according to the number, shape, and size of the components in actual implementation. The types, quantities, and proportions of the components during implementation can be arbitrarily changed, and the component layout type may also be more complex. The structures, proportions, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those skilled in this technology to understand and read, and are not used to limit the limiting conditions under which the present invention can be implemented. Therefore, they do not have technical substantial significance. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle", and "one" cited in this specification are only for the convenience of clear narration and are not used to limit the scope under which the present invention can be implemented. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope within which the present invention can be implemented.

[0025] Please see Figures 1 through 2 As shown, the present invention provides a combined plug board, including:

[0026] A main plug board 1, one end of the main plug board 1 has a width greater than the width of the other end along its length direction;

[0027] A secondary plug board 2, one end of the secondary plug board 2 has a width greater than the width of the other end along its length direction;

[0028] One hypotenuse of the secondary plug board 2 is attached to the hypotenuse of the main plug board 1, and the small-mouth end of the main plug board 1 and the large-mouth end of the secondary plug board 2 are on the same side;

[0029] The main plug board 1 and the secondary plug board 2 are connected to form a combined board, and the combined board has a trapezoidal or right-trapezoidal structure.

[0030] Exemplarily, the secondary plug board 2 is a right-trapezoidal board, and the hypotenuse of the secondary plug board 2 is parallel to and attached to any hypotenuse of the main plug board 1.

[0031] It should also be noted that this design enables the secondary latch plate 2 to closely and stably adhere to the primary latch plate 1, forming a reliable connection structure. The parallel and adhering bevel design helps to reduce gaps and improve the overall stability and sealing performance.

[0032] Exemplarily, chamfers are provided at the edges where the primary latch plate 1 adheres to the secondary latch plate 2.

[0033] It should also be noted that the provision of chamfers can reduce stress concentration at the adhering edges, avoiding damage caused by excessive stress during use. At the same time, the chamfers can also make the adhering process smoother, reducing friction and resistance, and improving the assembly efficiency.

[0034] Exemplarily, chamfers are provided at the edges where the secondary latch plate 2 adheres to the primary latch plate 1.

[0035] It should also be noted that this design further enhances the smoothness and wear resistance of the adhering edges, extending the service life of the latch plate.

[0036] Exemplarily, both the primary latch plate 1 and the secondary latch plate 2 are of metal structure.

[0037] It should also be noted that the metal structure has high strength and hardness, and can withstand large pressures and impacts. At the same time, metal has good thermal conductivity and corrosion resistance, and is suitable for various harsh environments. This design ensures the reliability and durability of the latch plate in various application scenarios.

[0038] Exemplarily, both the primary latch plate 1 and the secondary latch plate 2 are of one-piece formed structure.

[0039] It should also be noted that the one-piece formed structure reduces the connection points between components, reducing the risk of failures caused by improper connections. At the same time, the one-piece formed structure also improves the overall strength and rigidity of the latch plate, making it more robust and durable. In addition, this design simplifies the production process and improves the production efficiency.

[0040] In summary, by adopting the combined latch plate of the present invention, the replacement time of the mud gun nozzle is saved, the disassembly method is changed from upward force disassembly of the latch to downward force disassembly. The whole disassembly process is simple and fast, reducing the labor intensity of workers. The disassembly process avoids damage to the latch holes and also avoids the cooperation of continuous tapping of the blast furnace iron notch, providing guarantee for the stable and smooth operation of the blast furnace.

[0041] The above embodiments are only illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A combination latch plate, characterized in that: include: A main latch plate (1), wherein the width of one end of the main latch plate (1) along its length direction is greater than the width of the other end; A secondary latch plate (2), wherein the secondary latch plate (2) has a width at one end greater than a width at the other end along its length direction; A hypotenuse of the auxiliary latch plate (2) is in contact with a hypotenuse of the main latch plate (1), and a small end of the main latch plate (1) and a large end of the auxiliary latch plate (2) are located on the same side; The main latch plate (1) and the auxiliary latch plate (2) are connected to form a combined plate, and the combined plate is a trapezoidal or right-angled trapezoidal structure.

2. A combination latch plate according to claim 1, characterized in that: The auxiliary latch plate (2) is a right-angled trapezoidal plate, and the hypotenuse of the auxiliary latch plate (2) is parallel to any hypotenuse of the main latch plate (1) and fits with each other.

3. A combined latch plate according to claim 2, characterized in that: The edges where the main latch plate (1) and the auxiliary latch plate (2) are in contact are chamfered.

4. A combined latch plate according to claim 3, characterized in that: The edges where the auxiliary latch plate (2) and the main latch plate (1) are in contact are chamfered.

5. A combined latch plate according to claim 4, characterized in that: The main latch plate (1) and the auxiliary latch plate (2) are both metal structures.

6. A combined latch plate according to claim 4, characterized in that: The contact surfaces of the main latch plate (1) and the auxiliary latch plate (2) are slidably matched.

7. The combined latch plate according to claim 5, characterized in that: The main latch plate (1) and the auxiliary latch plate (2) are both integrally formed structures.

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