Split type copper pipe for crystallizer

Abstract

The utility model discloses a split type copper pipe for a crystallizer, which belongs to the technical field of crystallizers, and comprises an outer copper pipe and an inner copper pipe, the inner wall of the outer copper pipe is provided with a slot, the inner wall of the shell cavity of the outer copper pipe is provided with a sealing component, and the outer surface of the inner copper pipe is provided with a mounting component; according to the utility model, through the arrangement of the sealing assembly, after the sealing ring and the inner wall of the outer copper pipe are extruded, the pressing block is extruded, at the moment, the pressing block drives the extrusion ring to move towards the interior of the shell cavity of the outer copper pipe, the extrusion ring extrudes the sealing air bag, and the extruded sealing air bag extends to the inner surface of the outer copper pipe through the open groove; the sealing performance of the copper pipes is improved after splicing, leakage of the copper pipes is effectively avoided, meanwhile, the diameter of the outer copper pipe is larger than that of the inner copper pipe, the flow speed can be increased when water flows to the inner copper pipe from the outer copper pipe, and therefore the cooling efficiency of the copper pipes is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of crystallizers, and particularly relates to a copper tube for a split crystallizer. Background Art

[0002] The crystallizer is a continuous steel casting equipment that receives the molten steel injected from the intermediate tank and solidifies it into a solid shell according to the specified cross-sectional shape. The crystallizer copper tube is an accessory for steel continuous casting machines, which is formed by directly pouring molten steel into the crystallizer copper tube.

[0003] The Chinese patent discloses a crystallizer copper tube (CN212042580U), which belongs to the field of continuous casting technology. The inner cavity of the crystallizer copper tube is rectangular, one end of the crystallizer copper tube is the upper end of the copper tube, and the other end is the lower end of the copper tube. A copper tube transition port is provided on the crystallizer copper tube near the lower end of the copper tube; from the upper end of the copper tube to the transition port of the copper tube is the first end of the copper tube, and the inner cavity of the first end of the copper tube gradually shrinks from the upper end of the copper tube to the transition port of the copper tube according to the law of the power function curve, so that the circumferential temperature and stress distribution of the casting blank are uniform, avoiding the generation of corner or deflection quality defects; from the transition port of the copper tube to the lower end of the copper tube is the second section of the copper tube, and the inner cavity of the second section of the copper tube gradually increases from the transition port of the copper tube to the lower end of the copper tube, reserving a certain space for the inward deformation at the lower end of the copper tube, avoiding squeezing the casting blank and destroying the quality of the casting blank, greatly reducing the wear of the lower end of the copper tube, and improving the service life of the copper tube; the vertical height of the second section of the copper tube accounts for a small proportion, ensuring stable high-speed continuous casting. Most of the current copper tubes are of one-piece type. Therefore, when one part of the copper tube is damaged, the entire copper tube needs to be replaced, which easily leads to a waste of resources and is cumbersome to replace. Therefore, a split-type copper tube for a crystallizer is provided. Utility Model Content

[0004] The utility model aims to solve the problem that the existing copper tube is an integrated type and is inconvenient to replace, and proposes a split type copper tube for a crystallizer.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a copper tube for a split crystallizer, comprising an outer copper tube and an inner copper tube, the inner wall of the outer copper tube is provided with a groove, the inner wall of the shell cavity of the outer copper tube is provided with a sealing component, and the outer surface of the inner copper tube is provided with a mounting component;

[0006] The sealing assembly comprises a connecting spring, one end of which is fixedly connected to the inner wall of the shell cavity top surface of the outer copper tube, and one end of which is fixedly mounted with an extrusion ring.

[0007] As a further description of the above technical solution:

[0008] The outer surface of the extrusion ring is slidably connected to the inner wall of the shell cavity of the outer copper tube, and a sealing airbag is fixedly installed on the lower surface of the extrusion ring.

[0009] As a further description of the above technical solution:

[0010] The lower surface of the sealing airbag is fixedly connected to the inner wall of the bottom surface of the shell cavity of the outer copper tube. A pressing block is fixedly installed on the upper surface of the extrusion ring, and one end of the pressing block extends into the inner part of the outer copper tube.

[0011] As a further description of the above technical solution:

[0012] The installation assembly includes a sealing ring. The inner wall of the sealing ring is fixedly connected to the outer surface of the inner copper tube, and a sealing ring is arranged on the upper surface of the sealing ring.

[0013] As a further description of the above technical solution:

[0014] Threaded holes are provided on the inner walls of the sealing ring and the sealing ring, and bolts are threadedly installed on the inner walls of the threaded holes.

[0015] As a further description of the above technical solution:

[0016] A positioning hole is provided on the lower surface of the outer copper tube, and the positioning hole is adapted to the size of the bolt. The diameter of the inner copper tube is smaller than that of the outer copper tube.

[0017] In summary, due to the adoption of the above technical solution, the beneficial effects of the present utility model are as follows:

[0018] 1. In the present utility model, by providing a sealing assembly, after the sealing ring is squeezed against the inner wall of the outer copper tube, it will squeeze the pressing block. At this time, the pressing block will drive the extrusion ring to move into the inner part of the shell cavity of the outer copper tube, and the extrusion ring will squeeze the sealing airbag. The squeezed sealing airbag will extend to the inner surface of the outer copper tube through the slot, so that the sealing airbag is squeezed against the outer surface of the inner copper tube, improving the sealing performance of the copper tube after splicing, effectively avoiding leakage of the copper tube. At the same time, the diameter of the outer copper tube is larger than that of the inner copper tube. Therefore, when water flows from the outer copper tube to the inner copper tube, the flow rate will be increased, thereby improving the cooling efficiency of the copper tube.

[0019] 2. In the present utility model, by providing an installation assembly, after the inner copper tube passes through the inner part of the outer copper tube, the sealing ring is fitted against the inner wall of the outer copper tube. At this time, the sealing ring contacts the inner wall of the outer copper tube through the sealing ring, and then the bolt is tightened under the action of the screw hole, so that the sealing ring seals the gap between the sealing ring and the outer copper tube, realizing the splicing of the two copper tubes, achieving the split type of the copper tube, facilitating the replacement of a single copper tube when the copper tube is damaged, and achieving the purpose of saving resources. Description of the Drawings

[0020] Figure 1 It is a three-dimensional structure schematic diagram of a copper tube for a split mold.

[0021] Figure 2 It is an exploded structure schematic diagram of a copper tube for a split mold.

[0022] Figure 3 It is an internal structure schematic diagram of the outer copper tube of a copper tube for a split mold.

[0023] Legend:

[0024] 1. Outer copper tube; 2. Inner copper tube; 3. Installation component; 31. Bolt; 32. Sealing ring; 33. Sealing gasket; 34. Screw hole; 4. Groove; 5. Sealing component; 51. Connecting spring; 52. Extrusion ring; 53. Sealing airbag; 54. Pressing block. Specific implementation

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0026] Please refer to Figures 1-3 , the present invention provides a technical solution: a copper tube for a split mold, including an outer copper tube 1 and an inner copper tube 2. A groove 4 is provided on the inner wall of the outer copper tube 1. A sealing component 5 is provided on the inner wall of the shell cavity of the outer copper tube 1. An installation component 3 is provided on the outer surface of the inner copper tube 2;

[0027] The sealing component 5 includes a connecting spring 51. One end of the connecting spring 51 is fixedly connected to the inner wall of the top surface of the shell cavity of the outer copper tube 1. One end of the connecting spring 51 is fixedly installed with an extrusion ring 52. The outer surface of the extrusion ring 52 is slidably connected to the inner wall of the shell cavity of the outer copper tube 1. The lower surface of the extrusion ring 52 is fixedly installed with a sealing airbag 53. The lower surface of the sealing airbag 53 is fixedly connected to the inner wall of the bottom surface of the shell cavity of the outer copper tube 1. The upper surface of the extrusion ring 52 is fixedly installed with a pressing block 54. One end of the pressing block 54 extends into the outer copper tube 1.

[0028] The specific implementation is as follows: After the sealing ring 32 is squeezed against the inner wall of the outer copper tube 1, it will squeeze the pressing block 54. At this time, the pressing block 54 will drive the extrusion ring 52 to move into the inner part of the shell cavity of the outer copper tube 1. The extrusion ring 52 will squeeze the sealing airbag 53. The squeezed sealing airbag 53 will extend to the inner surface of the outer copper tube 1 through the groove 4, so that the sealing airbag 53 is squeezed against the outer surface of the inner copper tube 2.

[0029] The installation component 3 includes a sealing ring 32. The inner wall of the sealing ring 32 is fixedly connected to the outer surface of the inner copper tube 2. A sealing gasket 33 is provided on the upper surface of the sealing ring 32. Threaded holes are provided on both the inner wall of the sealing gasket 33 and the sealing ring 32. A bolt 31 is threadedly installed on the inner wall of the threaded hole. A positioning hole is provided on the lower surface of the outer copper tube 1, and the positioning hole is adapted to the size of the bolt 31. The diameter of the inner copper tube 2 is smaller than that of the outer copper tube 1.

[0030] The specific implementation method is as follows: After passing the inner copper tube 2 through the inside of the outer copper tube 1, the sealing ring 32 is brought into contact with the inner wall of the outer copper tube 1. At this time, the sealing ring 32 contacts the inner wall of the outer copper tube 1 through the sealing gasket 33. Then, under the action of the screw hole 34, the bolt 31 is tightened, so that the sealing gasket 33 seals the gap between the sealing ring 32 and the outer copper tube 1.

[0031] Working principle: After passing the inner copper tube 2 through the inside of the outer copper tube 1, the sealing ring 32 is brought into contact with the inner wall of the outer copper tube 1. At this time, the sealing ring 32 contacts the inner wall of the outer copper tube 1 through the sealing gasket 33. Then, under the action of the screw hole 34, the bolt 31 is tightened, so that the sealing gasket 33 seals the gap between the sealing ring 32 and the outer copper tube 1. After the sealing ring 32 is squeezed against the inner wall of the outer copper tube 1, it will squeeze the pressure block 54. At this time, the pressure block 54 will drive the extrusion ring 52 to move into the shell cavity of the outer copper tube 1. The extrusion ring 52 will squeeze the sealing airbag 53. The squeezed sealing airbag 53 will extend to the inner surface of the outer copper tube 1 through the slot 4, so that the sealing airbag 53 is squeezed against the outer surface of the inner copper tube 2.

[0032] The above is only the preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A copper tube for a split crystallizer, comprising an outer copper tube (1) and an inner copper tube (2), characterized in that: The inner wall of the outer copper tube (1) is provided with a groove (4), the inner wall of the shell cavity of the outer copper tube (1) is provided with a sealing component (5), and the outer surface of the inner copper tube (2) is provided with a mounting component (3); The sealing assembly (5) comprises a connecting spring (51), one end of which is fixedly connected to the inner wall of the shell cavity top surface of the outer copper tube (1), and one end of which is fixedly mounted with an extrusion ring (52).

2. A copper tube for a split crystallizer according to claim 1, characterized in that: The outer surface of the extrusion ring (52) is slidably connected to the inner wall of the shell cavity of the outer copper tube (1), and a sealing airbag (53) is fixedly mounted on the lower surface of the extrusion ring (52).

3. A copper tube for a split crystallizer according to claim 2, characterized in that: The lower surface of the sealing airbag (53) is fixedly connected to the inner wall of the bottom surface of the shell cavity of the outer copper tube (1), and a pressing block (54) is fixedly installed on the upper surface of the extrusion ring (52), and one end of the pressing block (54) extends to the inside of the outer copper tube (1).

4. A copper tube for a split crystallizer according to claim 3, characterized in that: The mounting assembly (3) comprises a sealing ring (32), the inner wall of the sealing ring (32) is fixedly connected to the outer surface of the inner copper tube (2), and the upper surface of the sealing ring (32) is provided with a sealing ring (33).

5. A copper tube for a split crystallizer according to claim 4, characterized in that: The inner walls of the sealing ring (33) and the sealing ring (32) are both provided with threaded holes, and bolts (31) are threadedly mounted on the inner walls of the threaded holes.

6. The copper tube for a split crystallizer according to claim 5, characterized in that: The lower surface of the outer copper tube (1) is provided with a positioning hole, the positioning hole is adapted to the size of the bolt (31), and the diameter of the inner copper tube (2) is smaller than that of the outer copper tube (1).

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