A crucible forming and ramming jig in an induction furnace

Abstract

The utility model discloses a ramming jig for forming a crucible in an induction furnace, comprising a tapered barrel body that is wide at the top and narrow at the bottom, wherein the inner wall of the barrel body is provided with a plurality of anti-deformation support rings spaced from top to bottom, a circle of vents is provided between adjacent anti-deformation support rings along the inner wall of the barrel body, the outer side of the anti-deformation support ring is fixedly connected to the inner wall of the barrel body, a cooling water pipe is also spirally provided inside the barrel body, and the outer wall of the cooling water pipe is fixedly connected to the inner side of the anti-deformation support ring, the bottom of the barrel body is provided with a bottom mold with an inward conical surface, the taper of the bottom film is greater than the taper of the barrel body, and a circle of vents is evenly distributed along the inner wall of the bottom film. When using this ramming jig, the problem of the quality of the inner crucible molding due to the deformation of the barrel body will not occur, and the water vapor in the material can be completely discharged during the ramming process, thereby improving the quality of the inner wall of the crucible and enabling smooth demolding.

Description

Technical Field

[0001] The utility model relates to the technical field of metallurgical smelting furnaces, in particular to a crucible forming and ramming jig in an induction furnace. Background Art

[0002] During the knotting process of the inner crucible of the induction furnace, the knotting jig used for forming the inner crucible is often easily deformed during knotting due to its low structural strength, which affects the forming quality of the inner crucible. In addition, the existing ramming jig does not consider the discharge of water vapor in the ramming material during the ramming process, resulting in unstable quality of the inner wall of the inner crucible, and cracks or slag often appear. At the same time, after knotting is completed, the ramming jig is often fastened in the inner crucible by refractory materials. Forcibly removing it will damage the crucible furnace body. The ramming jig can only be directly melted in the molten steel and used once, and the production cost is relatively high.

[0003] Therefore, it is necessary to provide a crucible forming and ramming jig in an induction furnace to solve the above technical problems. Utility Model Content

[0004] The utility model aims to provide a crucible forming and ramming jig in an induction furnace in view of the deficiencies in the prior art, which has high structural strength and will not deform, can discharge water vapor in the pounding material, and can be easily demoulded after the knotting is completed.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A crucible forming and ramming jig in an induction furnace comprises a tapered barrel body which is wide at the top and narrow at the bottom. A plurality of anti-deformation support rings are arranged on the inner wall of the barrel body from top to bottom. A circle of air vents is arranged between adjacent anti-deformation support rings along the inner wall of the barrel body. The outer sides of the anti-deformation support rings are fixedly connected to the inner walls of the barrel body. A cooling water pipe is also spirally arranged inside the barrel body, and the outer wall of the cooling water pipe is fixedly connected to the inner sides of the anti-deformation support rings. A bottom mold with an inwardly tapered surface is arranged at the bottom of the barrel body. The taper of the bottom mold is greater than that of the barrel body, and a circle of air vents is evenly distributed along the inner wall of the bottom mold.

[0007] Preferably, a pair of handles are fixedly connected to the top of the barrel body.

[0008] Preferably, the barrel body is a steel barrel body.

[0009] Preferably, a water outlet valve is provided at the water outlet end of the cooling water pipe, and a water inlet joint connected to the water pipe is provided at the water inlet end of the cooling water pipe.

[0010] Compared with the prior art, the utility model has the following advantages:

[0011] 1. Multiple anti-deformation support rings are arranged on the inner wall of the barrel to improve the structural strength of the barrel and ensure that during the knotting process, there will be no problems with the quality of the inner crucible due to deformation of the barrel.

[0012] 2. A bottom mold with an inward conical surface is provided at the bottom of the barrel, and a circle of vents is provided on the bottom mold. The location of the bottom mold is at the junction of the bottom and the wall of the crucible, which is the weakest link of the entire crucible and requires a higher knotting quality. However, the thickness of the material here varies greatly and the heat dissipation conditions are different. Therefore, a bottom mold with vents is provided at the bottom of the barrel to improve the knotting quality at this location. At the same time, multiple vents are evenly provided on the inner wall of the barrel, which can discharge all the water vapor in the material during the ramming process, thereby improving the quality of the inner wall of the crucible.

[0013] 3. A spiral cooling water pipe is provided inside the barrel. After the knot is tied, cooling water is introduced to make the barrel shrink when it is cooled, making it easier to demould. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the internal structure of the utility model;

[0015] Figure 2 It is a top view of the utility model;

[0016] Among them, 1-barrel body, 2-anti-deformation support ring, 3-vent, 4-cooling water pipe, 5-bottom mold, 6-water inlet joint, 7-handle DETAILED DESCRIPTION

[0017] The present invention is further explained below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that these implementation methods are only used to illustrate the present invention and are not used to limit the scope of the present invention. After reading the present invention, various equivalent forms of modifications to the present invention by those skilled in the art all fall within the scope defined by the claims attached to this application.

[0018] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixed connection" and the like 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. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0019] In the present invention, the directions or positional relationships indicated by terms such as "upper", "lower", "bottom", "top", etc. are based on the directions or positional relationships shown in the accompanying drawings. They are relational words determined only for the convenience of describing the structural relationships of the various parts or elements of the present invention. They do not specifically refer to any part or element in the present invention and cannot be understood as limitations on the present invention.

[0020] like Figure 1 to Figure 2 As shown, a crucible forming and ramming jig in an induction furnace comprises a steel conical barrel body 1 which is wide at the top and narrow at the bottom. Four anti-deformation support rings 2 are arranged on the inner wall of the barrel body from top to bottom, a circle of air vents 3 are arranged between adjacent anti-deformation support rings along the inner wall of the barrel body, the outer sides of the anti-deformation support rings are welded and fixed to the inner walls of the barrel body, a cooling water pipe 4 is also spirally arranged inside the barrel body, and the outer wall of the cooling water pipe is welded and fixed to the inner sides of the anti-deformation support rings, a water outlet valve is installed at the water outlet end of the cooling water pipe, a water inlet joint 6 for connecting the water pipe is installed at the water inlet end of the cooling water pipe, a bottom mold 5 with an inward conical surface is provided at the bottom of the barrel body, the taper of the bottom mold is greater than the taper of the barrel body, a circle of air vents are evenly distributed along the inner wall of the bottom mold, and a pair of handles 7 are welded and fixed to the top of the barrel body.

[0021] The principle and use method of a crucible forming ramming jig in an induction furnace: first, add the material to make a knot, dig out a pit that matches the shape of the bottom mold of the barrel in the material, put the jig in after centering, and continue to add the material in batches, and complete the knotting from the bottom of the crucible to the wall of the crucible. During the knotting process, the water vapor in the material is discharged from the vent hole. Whether it is the junction of the bottom of the crucible and the wall of the crucible or the wall of the crucible, the knotting quality is significantly improved. After the knotting is completed, the water inlet pipe is connected through the water inlet joint, and cold water is introduced into the cooling water pipe to make the whole jig contract due to the cold. Grasp the two handles with your hands, lift the jig out, and successfully complete the demoulding. Finally, open the water outlet valve, discharge the water in the cooling water pipe, and put the jig away.

[0022] The above description shows and describes the preferred embodiments of the utility model. As mentioned above, it should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not depart from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A crucible forming and ramming jig in an induction furnace, characterized in that: It comprises a conical barrel body which is wide at the top and narrow at the bottom. A plurality of anti-deformation support rings are arranged on the inner wall of the barrel body from top to bottom. A circle of air vents is arranged between adjacent anti-deformation support rings along the inner wall of the barrel body. The outer sides of the anti-deformation support rings are fixedly connected to the inner walls of the barrel body. A cooling water pipe is also spirally arranged inside the barrel body, and the outer wall of the cooling water pipe is fixedly connected to the inner sides of the anti-deformation support rings. A bottom mold with an inward-conical surface is arranged at the bottom of the barrel body. The taper of the bottom mold is greater than that of the barrel body, and a circle of air vents is evenly arranged along the inner wall of the bottom mold.

2. The crucible forming and ramming jig in an induction furnace according to claim 1, characterized in that: A pair of handles are fixedly connected to the top of the barrel body.

3. The crucible forming and ramming jig in an induction furnace according to claim 1, characterized in that: The barrel body is a steel barrel body.

4. The crucible forming and ramming jig in an induction furnace according to claim 1, characterized in that: The water outlet end of the cooling water pipe is provided with a water outlet valve, and the water inlet end of the cooling water pipe is provided with a water inlet joint connected to the water pipe.

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