Crucible mould

Abstract

The utility model discloses a crucible mould which is used for knotting a crucible of an intermediate frequency furnace, the crucible mould comprises a cylinder body, a plurality of reinforcing assemblies and a plurality of stress assemblies, the cylinder body is coaxially arranged in the intermediate frequency furnace and used for knotting the crucible, the reinforcing assemblies are arranged on the inner wall of the cylinder body at intervals in the axial direction of the cylinder body, and the stress assemblies are arranged on the inner wall of the cylinder body. The multiple stress pieces are installed on the top of the barrel and arranged in the circumferential direction of the barrel at intervals. According to the crucible, the barrel is matched with the reinforcing assemblies and the stress pieces, the reinforcing assemblies are arranged on the inner wall of the barrel at intervals, so that the structural strength is enhanced, the overall rigidity and corrosion resistance of the crucible are effectively improved, and the crucible is more stable and durable in the high-temperature environment; the crucible mold can be pulled out stably, local stress concentration is reduced, local damage to a crucible is avoided, safety is improved, the service life is prolonged, the knotting efficiency and quality of the crucible are improved, and trouble and labor are saved.

Description

A crucible mold Technical Field

[0001] This utility model relates to the field of crucible smelting technology, and in particular to a crucible mold. Background Technology

[0002] In the field of metal smelting, the medium-frequency furnace crucible is a core component of the smelting process, and its performance directly affects smelting efficiency and safety. As smelting processes place increasing demands on the density, service life, and production efficiency of medium-frequency furnace crucibles, higher requirements are being placed on the mechanical properties, geometric accuracy, and surface quality of the knotted crucible fixtures.

[0003] In related technologies, the preparation of traditional medium-frequency furnace crucibles mainly relies on manual knotting, that is, manually layering and compacting refractory materials to form the crucible structure. The crucible manufacturing process is labor-intensive and inefficient. In this process, the manual knotting jig, as a shaping tool, needs to have basic structural strength and shape stability.

[0004] However, traditional manual knotting jigs are mostly made of ordinary steel or have a simple structural design, which is difficult to withstand the mechanical vibration and impact of machine-made crucibles. They are prone to deformation or cracking, resulting in large deviations in the roundness of the crucible's inner wall and affecting the uniformity of smelting. At the same time, the jig can easily cause damage to the inner wall of the crucible or even jam the jig when it is pulled out of the mold, thus affecting the quality and strength of the crucible. The new machine-made crucible process of this application has low labor intensity, fast knotting speed, and high efficiency. Summary of the Invention

[0005] This utility model addresses the problems of traditional manual knotting jigs, which often use ordinary steel or have simple structural designs, making them unable to withstand mechanical vibration and impact, prone to deformation or cracking, leading to deviations in the roundness of the crucible's inner wall and affecting the uniformity of the crucible's lifespan. Furthermore, demolding can easily cause damage to the inner wall of the crucible or even jamming of the jig, thus affecting quality and strength. Therefore, this utility model provides a crucible jig with the following technical solution:

[0006] A crucible fixture is used for crucible knotting in an intermediate frequency furnace, the crucible fixture comprising:

[0007] A cylindrical body is coaxially disposed inside the medium-frequency furnace, and the cylindrical body is used to tie the crucible.

[0008] Multiple reinforcing components are spaced apart on the inner wall of the cylinder along the axial direction of the cylinder.

[0009] Multiple force-bearing components are installed on the top of the cylinder, and the multiple force-bearing components are spaced apart along the circumference of the cylinder.

[0010] In some embodiments, the cylindrical body is a frustum conical structure, and the cylindrical body is used to confine a first space.

[0011] In some embodiments, a vibration device is provided in the first space, the vibration device being used to vibrate the crucible mold.

[0012] In some embodiments, each of the reinforcing components is an annular structure, and the reinforcing component is welded to the inner wall of the cylinder.

[0013] In some embodiments, the force-bearing member has a U-shaped structure, and three force-bearing members are provided, wherein there is a preset distance between the central axis of one force-bearing member and the central axis of another force-bearing member, and the two adjacent preset distances are equal.

[0014] In some embodiments, the cylinder is made of high-strength steel, and the thickness of the cylinder along its axial direction is 2-5 mm.

[0015] In some embodiments, the outer surface of the cylinder is a smooth surface.

[0016] The technological advancements achieved by this invention compared to existing technologies are as follows:

[0017] This invention features a matching cylindrical body, reinforcing components, and load-bearing parts. Multiple reinforcing components are spaced apart on the inner wall of the cylindrical body to enhance the structural strength of the cylindrical body, effectively improving the overall rigidity and deformation resistance of the jig, thus making the jig more stable and durable. At the same time, the load-bearing parts are evenly spaced along the axial direction of the cylindrical body, which enables the crucible jig to be pulled out smoothly, reduces stress concentration in the crucible, avoids local damage to the crucible, thereby improving safety and service life, improving the efficiency and quality of crucible knotting, and saving time and effort. Attached Figure Description

[0018] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0019] In the attached diagram:

[0020] Figure 1 is a schematic diagram of the use of the crucible fixture of this utility model;

[0021] Figure 2 is a schematic diagram of the crucible in this utility model;

[0022] Figure 3 is a schematic diagram of the crucible fixture of this utility model;

[0023] Figure 4 is a schematic diagram of the crucible mold of this utility model.

[0024] In the diagram: 1. Cylinder; 2. Multiple reinforcing components; 3. Multiple load-bearing components; 4. Preset distance; 5. Vibration equipment; 6. Through hole; 100. Medium frequency furnace; 200. Crucible fixture; 300. Crucible. Detailed Implementation

[0025] The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this utility model will be described below with reference to the accompanying drawings.

[0026] As shown in Figures 1 to 4, this utility model discloses a crucible fixture 300 used for crucible knotting in an intermediate frequency furnace 100. The crucible fixture 300 includes a cylindrical body 1, multiple reinforcing components 2, and multiple load-bearing components 3. The cylindrical body 1 is coaxially arranged inside the intermediate frequency furnace 100, that is, the cylindrical body 1 is installed along the central axis of the intermediate frequency furnace 100, ensuring uniform stress on the crucible 300 and facilitating material heating and melting. The cylindrical body 1 is used to knot the crucible 300, serving as the basic frame of the crucible 300, and is used for mold forming and supporting the structure of the crucible 300. The shape and structure of the cylindrical body 1 can be a cylindrical structure or a conical structure, etc., and can be adapted as needed.

[0027] Along the axial direction of the cylinder 1 (as shown in the z-direction of Figure 1), multiple reinforcing components 2 are spaced apart on the inner wall of the cylinder 1. These reinforcing components 2 effectively enhance the rigidity and pressure resistance of the cylinder 1, preventing deformation or damage to the jig 200 under knotting conditions, and improving the high-temperature service life and safety of the crucible 300. The number of reinforcing components 2 can be two or three, etc. In one example, two reinforcing components 2 are provided, spaced apart on the inner wall of the cylinder 1 to ensure shape stability.

[0028] Multiple load-bearing components 3 are installed on the top of the cylinder 1. The installation method can be fixed connection or detachable connection. The multiple load-bearing components 3 are spaced apart along the circumference of the cylinder 1 (as shown in direction A in Figure 3). The load-bearing components 3 are used to bear and transmit loads from the outside and can evenly distribute pressure to prevent excessive local stress on the crucible fixture 200 and damage. When the knotted crucible 300 is completed, the operator uses external equipment to pull the crucible fixture 200 out of the crucible 300 through the load-bearing components 3, thereby ensuring the quality of the crucible 300, avoiding damage to the crucible 300 caused by manual operation, and thus improving the overall mechanical properties and normal operation of the crucible 300.

[0029] In this application, by matching the cylinder body, reinforcing components, and load-bearing components, multiple reinforcing components are spaced apart on the inner wall of the cylinder body to enhance structural strength, effectively improve the overall rigidity and deformation resistance of the jig, thereby making it more stable and durable in the knotting environment. At the same time, the load-bearing components are evenly spaced along the axial direction of the cylinder body, which makes it easier to pull the jig out of the crucible, reduces local stress concentration, avoids local damage to the crucible, thereby improving the high-temperature safety and service life of the crucible, and improving the knotting efficiency and quality of the crucible, saving time and effort.

[0030] In some embodiments, the shape of the cylinder 1 can be adapted as needed. In one example, as shown in FIG3, the cylinder 1 is a frustum conical structure. The upper diameter of the cylinder 1 is larger than the lower diameter, presenting a frustum conical structure that gradually expands from bottom to top. The size of the cylinder 1 can be adapted as needed. For example, the axial height of the cylinder 1 is 1500mm, the upper diameter is 770mm, and the lower diameter is 750mm, thereby meeting the requirements of the knotting crucible 300. In addition, after knotting the crucible 300, the frustum conical structure of the cylinder 1 can be easily removed from the crucible 300, avoiding damage to the crucible 300 and difficulty in demolding. The cylinder 1 is used to restrict the first space 11, which is used to hold and stabilize the equipment required for the crucible 300. During the knotting process of the crucible 300, the stability of the crucible mold 200 can be ensured, thereby improving the quality and strength of the crucible 300.

[0031] In some embodiments, the first space 11 can be adaptively equipped as needed. For example, a vibration device 5 can be installed in the first space 11 to vibrate the crucible fixture 200, ensuring that the vibration force is uniformly transmitted to the refractory material. The vibration effect is significant, thereby optimizing the forming effect and overall performance of the crucible 300 formed from the refractory material. In one example, the vibration device 5 is a furnace wall vibrator. The furnace wall vibrator has advantages such as strong anti-blocking capability, low power consumption, low noise, and adjustable vibration force and frequency. The furnace wall vibrator is installed at the bottom of the first space 11. During use, the periodic mechanical vibration force applied by the furnace wall vibrator can effectively promote the compaction and uniform distribution of the refractory material between the crucible fixture 200 and the medium-frequency furnace 100, thereby reducing air bubbles and voids in the crucible 300 formed from the refractory material and improving the forming quality and density of the crucible 300. At the same time, the vibration process helps to release the internal stress of the crucible 300, preventing cracks or deformation during high-temperature melting, thereby improving the structural stability and service life of the crucible 300.

[0032] In some embodiments, each reinforcing component 2 is a ring-shaped structure. The ring-shaped structure is a closed ring, which can evenly distribute stress and effectively enhance the overall rigidity and stability of the cylinder 1. The reinforcing component 2 is welded to the inner wall of the cylinder 1 to ensure the formation of a strong bonding interface, thereby improving the restraining effect of the reinforcing component 2 on the cylinder 1. It can also effectively prevent loosening and deformation caused by thermal expansion and contraction or vibration. At the same time, when the crucible fixture 200 is subjected to external loads and internal pressure, it can improve the load-bearing capacity and durability of the cylinder 1, ensuring normal use.

[0033] In some embodiments, as shown in Figures 1, 3, and 4, the force-bearing component 3 is welded to the cylinder 1. The force-bearing component 3 has a U-shaped structure, and there is a through hole 7 between the U-shaped force-bearing component 3 and the cylinder 1. External equipment can lift the crucible fixture 200 and move it out of the intermediate frequency furnace 100 through the through hole 7. There are three force-bearing components 3. There is a preset distance 4 between the central axis of one force-bearing component 3 and the central axis of another force-bearing component 3, so that there are three preset distances 4, and the two adjacent preset distances 4 are equal. This makes the three force-bearing components 3 evenly arranged on the top of the cylinder 1, which helps to evenly bear the structural load, avoid local stress concentration, and improve the stability and safety of the overall crucible fixture 200.

[0034] In some embodiments, the cylinder 1 is made of high-strength steel, which has good mechanical properties and corrosion resistance, and can meet the needs of use under complex working conditions. Along the radial direction of the cylinder 1 (x direction as shown in Figure 1), the thickness of the cylinder 1 is 2-5mm, which can be adapted according to the stress conditions and the usage environment. For example, a thickness of 2mm in the cylinder 1 helps to reduce the overall structural weight and improve economy and operational flexibility. Another example is a thickness of 5mm in the cylinder 1, which can enhance the compressive strength and deformation resistance of the cylinder 1, and ensure good structural stability under high load and high temperature conditions.

[0035] In some embodiments, the outer surface of the cylinder 1 is a smooth surface. The smooth surface of the cylinder 1 can reduce surface roughness and irregular bumps, which helps to reduce the coefficient of friction and dust and dirt accumulation, thereby effectively improving the density of the knotting crucible 300.

[0036] The working principle of a crucible die in this application is as follows:

[0037] As shown in Figures 1 to 4, firstly, the operator places the crucible mold 200 into the medium frequency furnace 100, ensuring that the center line of the crucible mold 200 is aligned with the central axis of the medium frequency furnace 100. Since the crucible mold 200 has a specific mold cavity or support surface, it can be used to define the outer contour of the crucible 300, assisting in the shaping and sizing of the crucible 300 during the forming process.

[0038] Next, the refractory material is placed between the crucible fixture 200 and the medium-frequency furnace 100, and the crucible fixture 200 is struck by a furnace wall vibrator, causing the outer refractory material powder to generate a high-intensity transverse impact, thereby making the crucible 300 formed by the refractory material more compact. At this time, the refractory material powder has a strong adsorption force on the crucible fixture 200, so the crucible fixture 200 has a conical frustum structure. At the same time, an external device is used to fix the force-bearing component 3 on the crucible fixture 200 to lift and move it upward, ensuring that the crucible fixture 200 can be smoothly removed from the crucible 300 after the knotting is completed.

[0039] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A crucible mold, characterized in that, The crucible fixture is used for knotting crucibles in a medium-frequency furnace. The crucible fixture includes: a cylindrical body, coaxially arranged inside the medium-frequency furnace, the cylindrical body being used for knotting crucibles; multiple reinforcing components, arranged along the axial direction of the cylindrical body, the multiple reinforcing components being spaced apart on the inner wall of the cylindrical body; and multiple force-bearing components, installed on the top of the cylindrical body, the multiple force-bearing components being spaced apart along the circumference of the cylindrical body.

2. The crucible mold according to claim 1, characterized in that, The cylinder has a truncated cone structure and is used to confine the first space.

3. The crucible mold according to claim 2, characterized in that, A vibration device is provided in the first space, and the vibration device is used to vibrate the crucible mold.

4. The crucible mold according to claim 1, characterized in that, Each of the reinforcing components is a ring-shaped structure, and the reinforcing components are welded to the inner wall of the cylinder.

5. The crucible mold according to claim 1, characterized in that, The force-bearing component has a U-shaped structure, and there are three force-bearing components. There is a preset distance between the central axis of one force-bearing component and the central axis of another force-bearing component, and the preset distances of two adjacent components are equal.

6. The crucible mold according to claim 1, characterized in that, The cylinder is made of high-strength steel, and the thickness of the cylinder is 2-5mm along the axial direction.

7. The crucible mold according to claim 6, characterized in that, The outer surface of the cylinder is a smooth surface.

Images