Ejecting structure for copper tile and electrode corrugated pipe in electric furnace
By designing elastic elements and limiting guide components in the electric furnace, the problem of plastic deformation of bellows at high temperatures was solved, achieving a self-resetting function and improving the temperature resistance and service life of the equipment.
Patent Information
- Application Number
- CN202520735012.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-18
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-04-18
AI Technical Summary
In existing electric furnaces, the corrugated tubes are prone to plastic deformation under high-temperature conditions, which can lead to irreversibility and affect the performance.
The design incorporates elastic elements and limit guide components, including a disc spring and a limit plate, to achieve the self-resetting function of the bellows, thereby enhancing its temperature resistance and structural reliability.
It effectively prevents high-temperature plastic deformation, ensures that the corrugated pipe can return to its normal position under high-temperature conditions, extends its service life, and improves the reliability and safety of the equipment.
Smart Images
Figure CN223894839U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of electric furnace, especially to a copper tile and electrode bellows top tight structure in electric furnace. BACKGROUND
[0002] At present, electric furnaces at home and abroad have the trend of large-scale, airtight, environmental protection, energy saving and automation, and have more stringent requirements on the use reliability and safety of equipment.
[0003] The bellows top tight structure is generally installed inside the pressure ring, and each bellows top tight structure is one-to-one corresponding to top up the copper tile through oil pressure to protect the copper tile and the electrode from being in close contact and good conduction.
[0004] The bellows directly contacts the high-temperature environment and gas in the furnace, and the general ambient temperature can reach 500-1250 DEG C, and the material spraying can reach above 1500 DEG C in an instant. Therefore, the bellows is required to be high-temperature resistant, corrosion resistant, reasonable in structure, simple and reliable, long in service life, and the bellows is installed in the high-temperature area and high-dust environment in the furnace for long-term operation, which is easy to produce plastic deformation, and the bellows flexible tube cannot rebound after long-time operation, thereby affecting the use effect. CONTENT OF THE UTILITY MODEL
[0005] The utility model aims at providing a copper tile and electrode bellows top tight structure in electric furnace.
[0006] The utility model has the advantages of being simple in structure, convenient to use, and being capable of preventing the bellows from being unable to reset after high-temperature plastic deformation.
[0007] In order to achieve the above-mentioned utility model purposes, the technical scheme of the utility model is as follows:
[0008] A copper tile and electrode bellows jacking structure in an electric furnace comprises an end flange, a limiting guide assembly connected to the end flange, the limiting guide assembly comprising an inner limiting piece connected to the center of the end flange and an outer limiting piece sleeved on the inner limiting piece, the inner limiting piece comprising a cylinder connected to the end flange and a first limiting plate located at the other end of the cylinder, the outer limiting piece comprising a round sleeve located at the outer circle of the cylinder and a second limiting plate connected to one end of the round sleeve and a connecting plate connected to the other end of the round sleeve, an elastic piece sleeved on the cylinder being arranged between the cylinder and the round sleeve, one end of the elastic piece being limited by the first limiting plate and the other end being limited by the second limiting plate, an end flange sleeve being arranged on the end flange and being in sliding sleeve connection with the round sleeve, a corrugated flexible tube being arranged outside the end flange sleeve, one end of the corrugated flexible tube being connected to the connecting plate and the other end being connected to the end flange, an oil passage being arranged on the end flange and the end flange sleeve for communicating with the inside of the corrugated flexible tube, and a spacing being present between the second limiting plate and the end flange when the round sleeve and the end flange sleeve are jacked, a jacking head plate being connected to the side of the connecting plate away from the end flange, and an insulating plate being arranged between the jacking head plate and the connecting plate.
[0009] Further, the elastic piece is a butterfly spring.
[0010] Further, the corrugated flexible tube is made of 12 layers of 0.3 mm steel plates which are stacked and extruded, so that the pressure bearing capacity of the corrugated tube is increased and the maximum test pressure that can be borne is 10 MPa.
[0011] Further, the cylinder is provided with a notch at the side of the first limiting plate, and the connecting plate is provided with a protrusion which can move in the notch. When the jacking block moves under the action of elasticity, a certain guiding effect can be achieved and displacement is not easy to occur.
[0012] Further, the notch is provided with a flared opening, and the protrusion is provided with a circular truncated cone head. It is easier to insert.
[0013] Further, the inlet of the oil passage is located at one side of the end flange and is on the same side as the corrugated flexible tube. It is easy to enter oil.
[0014] The beneficial effects of the present utility model are as follows:
[0015] 1. In the present patent, the elastic piece is arranged to achieve self-resetting and prevent the corrugated tube from being unable to reset after high-temperature plastic deformation. DRAWINGS
[0016] Figure 1 The present utility model is a structural schematic diagram. DETAILED DESCRIPTION
[0017] The technical solutions in the embodiments of the present utility model will be described clearly and completely in combination with the drawings.
[0018] Embodiment 1: asFigure 1 As shown, a copper tile and electrode bellows top pressing structure in an electric furnace comprises an end flange 1, a limiting guide assembly 2 connected to the end flange 1, the limiting guide assembly 2 comprising an inner limiting piece 2.1 connected to the center of the end flange 1 and an outer limiting piece 2.2 sleeved on the inner limiting piece 2.1, the inner limiting piece 2.1 comprising a cylinder 2.11 connected to the end flange 1 and a first limiting plate 2.12 located at the other end of the cylinder 2.11, the outer limiting piece 2.2 comprising a round sleeve 2.21 located at the outer ring of the cylinder 2.11, a second limiting plate 2.22 connected to one end of the round sleeve 2.21 and a connecting plate 2.23 connected to the other end of the round sleeve 2.21, an elastic piece 2.3 sleeved on the cylinder 2.11 being arranged between the cylinder 2.11 and the round sleeve 2.21, the elastic piece 2.3 being a butterfly spring, one end of the elastic piece 2.3 being limited by the first limiting plate 2.12 and the other end of the elastic piece 2.3 being limited by the second limiting plate 2.22, the end flange 1 being provided with an end flange sleeve 1.1 in sliding sleeve connection with the round sleeve 2.21, a corrugated flexible pipe 3 being arranged outside the end flange sleeve 1.1, the corrugated flexible pipe 3 being formed by 12 layers of 0.3mm steel plates being stacked and extruded, one end of the corrugated flexible pipe 3 being connected to the connecting plate 2.23 and the other end of the corrugated flexible pipe 3 being connected to the end flange, the end flange 1 and the end flange sleeve 1.1 being provided with an oil passage 1.2 for communicating the inside of the corrugated flexible pipe 3, the inlet of the oil passage 1.2 being located at one side of the end flange 1 and being on the same side as the corrugated flexible pipe 3, a space being present between the second limiting plate 2.22 and the end flange 1 when the round sleeve 2.21 and the end flange sleeve 1.1 are top pressed, a top head plate 4 being connected to the side of the connecting plate 2.23 away from the end flange 1, an insulating plate 5 being arranged between the top head plate 4 and the connecting plate 2.23.
[0019] The cylinder 2.11 is provided with a notch 2.111 at the side of the first limiting plate 2.12, the connecting plate 2.23 being provided with a protrusion 2.231 movable in the notch 2.111, the notch 2.111 being provided with a trumpet mouth, the protrusion 2.231 being provided with a circular table head.
[0020] When working, oil is passed in from the oil passage 1.2, the oil is extruded, the round sleeve 2.21 slides out, the corrugated flexible pipe 3 stretches, and the top head plate 4 is pushed out; when returning, the oil is withdrawn, the pressure is released, the corrugated flexible pipe 3 is recovered and reset, the limiting guide assembly 2 guides the corrugated flexible pipe to reciprocate in a certain position, the elastic piece 2.3 pushes the second limiting plate 2.22, drives the outer limiting piece 2.2 to be withdrawn, and plays an auxiliary role in resetting the corrugated flexible pipe 3.
[0021] The embodiments described are only part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present utility model.
Claims
1. A clamping structure for copper roof tiles and electrode bellows in an electric furnace, comprising end flanges, characterized in that, A limiting guide assembly is connected to the end flange. The limiting guide assembly includes an inner limiting member connected to the center of the end flange and an outer limiting member sleeved on the inner limiting member. The inner limiting member includes a cylinder connected to the end flange and a first limiting plate located at the other end of the cylinder. The outer limiting member includes a sleeve located on the outer ring of the cylinder, a second limiting plate connected to one end of the sleeve, and a connecting plate at the other end of the sleeve. An elastic element sleeved on the cylinder is provided between the cylinder and the sleeve. One end of the elastic element is limited by the first limiting plate, and the other end... One end is limited by a second limiting plate; the end flange is provided with an end flange sleeve that slides and engages with the round sleeve; a corrugated flexible tube is provided on the outside of the end flange sleeve; one end of the corrugated flexible tube is connected to a connecting plate and the other end is connected to the end flange; the end flange and the end flange sleeve are provided with an oil passage for connecting the inside of the corrugated flexible tube; when the round sleeve and the end flange sleeve are tightened, there is a gap between the second limiting plate and the end flange; a top plate is connected to the side of the connecting plate away from the end flange; an insulating plate is provided between the top plate and the connecting plate.
2. The copper tile and electrode bellows clamping structure in the electric furnace according to claim 1, characterized in that, The elastic element is a butterfly spring.
3. The copper tile and electrode bellows clamping structure in the electric furnace according to claim 1, characterized in that, The corrugated flexible tube is made of 12 layers of 0.3mm steel plates stacked and extruded.
4. The copper tile and electrode bellows clamping structure in the electric furnace according to claim 1, characterized in that, The cylinder has a notch on one side of the first limiting plate, and the connecting plate has a protrusion that can move within the notch.
5. The copper tile and electrode bellows clamping structure in an electric furnace according to claim 4, characterized in that, The recess has a flared opening, and the protrusion has a frustum-shaped head.
6. The copper tile and electrode bellows clamping structure in an electric furnace according to claim 1, characterized in that, The inlet of the oil passage is located on one side of the end flange and on the same side as the corrugated flexible pipe.