Split dead head of consumable electrode ingot for electroslag remelting

Abstract

The invention discloses a consumable electrode ingot split riser for electroslag remelting, which belongs to the technical field of electrode ingot pouring and comprises an insulation board fixing device and a cushion block. The insulation board fixing device can be inserted into an inner cavity of the electrode ingot mold from the upper end of the electrode ingot mold; a flange plate capable of being clamped and hung on the outer wall of an upper opening of an electrode ingot mold is arranged at the upper end of the insulation board fixing device, and a bracket capable of placing an arc-shaped insulation board is arranged at the lower end; the cushion block can be placed between the upper end of the electrode ingot mold and the lower end of the flange plate and used for adjusting the placing height of the heat preservation plate fixing device, and therefore the height of the hanging plate is adjusted. And the extension box can also be fixed on the upper port of the electrode ingot mold and is used for producing a large-tonnage consumable electrode ingot for electroslag remelting. The device is simple in structure and convenient to operate, continuous adjustment of the electrode ingot shape can be achieved, and the labor intensity of operators is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of electrode ingot casting, in particular to a split riser for consumable electrode ingots used for electroslag remelting. Background Art

[0002] Electroslag remelting is the process of using electric current to generate heat through slag to remelt the statically cast consumable electrode, purify the molten metal droplets and wash the slag to improve the metal purity. The consumable electrode is generally formed by casting.

[0003] The consumable electrode for electroslag remelting used in the prior art is cast by bottom pouring, and the ingot mold used for casting is as follows Figure 1 As shown, the ingot mold diameter ranges from φ500mm to φ700mm, and the ingot mold height is between 3400mm and 5300mm. The main problem is that the tonnage of the consumable electrode ingot needs to be changed by adjusting the insertion height of the riser insulation plate. However, the ingot shape range of the consumable electrode ingots for electroslag remelting is large, and the process of inserting and hanging the insulation plate is cumbersome. At the same time, since the inner cavity diameter of the ingot mold of the consumable electrode ingot for electroslag remelting is small, it is very inconvenient for personnel to operate.

[0004] Therefore, it is necessary to design a special riser tool to improve labor efficiency. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a split riser for consumable electrode ingots for electroslag remelting, which solves various problems arising from the on-site small-diameter consumable electrode ingot mold and the insertion and hanging of insulation boards, realizes continuous adjustment of the electrode ingot shape, and reduces the labor intensity of operators.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: A split riser for consumable electrode ingots for electroslag remelting, comprising a thermal insulation plate fixing device and a cushion block; the thermal insulation plate fixing device can be inserted into the inner cavity of the electrode ingot mold from the upper end of the electrode ingot mold; the upper end of the thermal insulation plate fixing device is provided with a flange plate that can be clamped on the outer wall of the upper opening of the electrode ingot mold, and the lower end is provided with a bracket that can place an arc-shaped thermal insulation plate; the cushion block can be placed between the upper end of the electrode ingot mold and the lower end of the flange plate to adjust the placement height of the thermal insulation plate fixing device, thereby realizing the adjustment of the hanging plate height.

[0007] Further improvements of the technical solution of the present invention are: the outer diameter Φ2 of the insulation board fixing device is 3-5mm smaller than the inner cavity diameter Φ1 of the electrode ingot mold; the outer wall thickness t1 of the insulation board fixing device is 100mm; the height H1 of the insulation board fixing device is 1500mm.

[0008] A further improvement of the technical solution of the present invention is that: the inner concave thickness t2 of the bracket is 50 mm; and the height h1 of the bracket is 580 mm.

[0009] A further improvement of the technical solution of the present invention is that: the thickness of the flange is 150 mm; and the outer diameter Φ3 of the flange is 1300 mm.

[0010] A further improvement of the technical solution of the present invention is that the insulation board fixing device is made of gray iron.

[0011] A further improvement of the technical solution of the present invention is that the length L of the cushion block is 250 mm, the width W is 150 mm, and the height h2 is adjusted according to actual needs.

[0012] A further improvement of the technical solution of the present invention is that the cushion block is made of gray iron.

[0013] A further improvement of the technical solution of the present invention is that it also includes an extension box that can be fixed on the upper port of the electrode ingot mold, which is used to produce large-tonnage consumable electrode ingots for electroslag remelting; the inner cavity diameter of the extension box is consistent with the inner cavity diameter of the electrode ingot mold.

[0014] A further improvement of the technical solution of the present invention is that: a female opening matching with a sub-opening at the upper end of the electrode ingot mold is provided at the lower part of the extension box; and a height H2 of the extension box is 900 mm.

[0015] A further improvement of the technical solution of the present invention is that the extension box is made of gray iron.

[0016] Due to the adoption of the above technical solution, the technical progress achieved by the present invention is: 1. Before using the present invention, place the arc-shaped insulation board into the concave cavity in the bracket at the bottom of the insulation board fixing device, and use wooden wedges to fix it for standby when necessary. After the electrode ingot mold is normally assembled, the insulation board fixing device is hoisted as a whole into the electrode ingot mold, and a number of pads are stacked in advance at the upper mouth of the electrode ingot mold. The height of the pads is determined according to the tonnage (ingot shape) of the electrode ingot to be cast. After assembly, it can wait for casting. In this way, the problem that the existing electrode ingot mold has a cumbersome process of inserting and hanging the insulation board and inconvenient operation for personnel can be overcome.

[0017] 2. The extension box designed in the present invention can be expanded by adding an extension box to the electrode ingot mold when the tonnage of the electrode ingot to be produced exceeds the maximum production tonnage of the electrode ingot mold, thereby effectively expanding the production range of the electrode ingot mold.

[0018] 3. The present invention uses a combination of a heat preservation plate fixing device, a cushion block and an extension box, has a simple structure, is easy to prepare, and can be used to produce electrode ingots of different ingot heights. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work. Figure 1 Schematic diagram of the ingot mold structure for casting a consumable electrode ingot for electroslag remelting in an embodiment of the present invention; Figure 2 2 is a schematic diagram of the structure of a fixing device for a heat preservation board according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the cushion block structure in an embodiment of the present invention; Figure 4 It is a schematic diagram of the extension box structure in an embodiment of the present invention; Among them, 1. electrode ingot mold; 2. insulation board fixing device; 2-1. flange; 2-2. bracket; 3. cushion block; 4. extension box. DETAILED DESCRIPTION

[0020] It should be noted that the terms "including" and "having" and any variations thereof in the specification and claims of the present invention and the above-mentioned drawings are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or apparatus.

[0021] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0022] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "several" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0023] The present invention is further described in detail below with reference to the accompanying drawings and embodiments: like Figure 1-3 As shown, a split riser for a consumable electrode ingot for electroslag remelting comprises a heat preservation plate fixing device 2 and a cushion block 3; the heat preservation plate fixing device 2 can be inserted into the inner cavity of the electrode ingot mold 1 from the upper end of the electrode ingot mold 1 (for casting the consumable electrode ingot for electroslag remelting); the upper end of the heat preservation plate fixing device 2 is provided with a flange 2-1 which can be hooked on the outer wall of the upper opening of the electrode ingot mold 1, and the lower end is provided with a bracket 2-2 (that is, a concave cavity which can fix the heat preservation plate for casting the riser) which can be placed in a circular arc heat preservation plate; the cushion block 3 can be placed between the upper end of the electrode ingot mold 1 and the lower end of the flange 3 to adjust the placement height of the heat preservation plate fixing device 2, thereby realizing the adjustment of the hanging plate height. That is, before the insulation board fixing device 2 is placed into the electrode ingot mold 1, a plurality of spacers 3 are placed on the upper port of the electrode ingot mold 1 according to the ingot shape of the cast electrode ingot to adjust the placement height of the insulation board fixing device 2 to adjust the height of the hanging insulation board (only the riser needs to hang the insulation board), thereby producing electrode ingots of different ingot shapes.

[0024] Further, such as Figure 2 As shown, the outer diameter Φ2 of the insulation board fixture 2 is 3-5mm smaller than the inner diameter Φ1 of the electrode ingot mold 1; the outer wall thickness t1 of the insulation board fixture 2 is 100mm; and the height H1 of the insulation board fixture 2 is 1500mm. The above-mentioned size setting ensures the convenience of hoisting the insulation board fixture 2 and the pouring of the electrode ingot riser.

[0025] Further, such as Figure 2 As shown, the inner concave thickness t2 of the bracket 2-2 is 50 mm, and the height h1 of the bracket 2-2 is 580 mm. The setting of the bracket 2-2 realizes the adjustment of the height of the hanging insulation board and ensures the pouring of the electrode ingot riser.

[0026] Further, such as Figure 2 As shown, the thickness of the flange 2-1 is 150 mm, and the outer diameter Φ3 at the flange 2-1 is 1300 mm. The arrangement of the flange facilitates the fixing of the insulation board fixing device 2 on the electrode ingot mold 1 and the placement of the pad 3.

[0027] Furthermore, the heat preservation board fixing device 2 is made of gray iron material. The use of gray iron material ensures the strength of the heat preservation board fixing device 2.

[0028] Further, such as Figure 3 As shown, the length L of the spacer 3 is 250 mm, the width W is 150 mm, and the height h2 is adjusted according to actual needs. The size setting of the spacer 3 ensures the adjustment of the placement height of the insulation board fixing device 2, thereby ensuring the adjustment of the electrode ingot tonnage.

[0029] Furthermore, the cushion block 3 is made of gray iron material, which ensures the strength of the cushion block 3.

[0030] Further, such as Figure 4 As shown, it also includes an extension box 4 that can be fixed on the upper end of the electrode ingot mold 1, which is used to produce large-tonnage consumable electrode ingots for electroslag remelting; the inner cavity diameter of the extension box 4 is consistent with the inner cavity diameter of the ingot mold 1. When the tonnage of the electrode ingot to be produced exceeds the maximum production tonnage of the electrode ingot mold 1, the extension box 4 can be added to the electrode ingot mold 1 to expand it, effectively expanding the production range of the electrode ingot mold 1.

[0031] Further, such as Figure 4 As shown, the lower part of the extension box 4 is provided with a female opening that matches the sub-opening at the upper end of the electrode ingot mold 1; the height H2 of the extension box 4 is 900 mm. The setting of the female opening ensures the stability of the extension box 4 being fixedly installed on the electrode ingot mold 1.

[0032] Furthermore, the extension box 4 is made of gray iron.

[0033] Directions: Before use, place the arc-shaped insulation board into the concave cavity in the bracket 2-2, and use wooden wedges to fix it for standby use when necessary. After the electrode ingot mold 1 is assembled normally, the insulation board fixing device 2 is hoisted as a whole and placed into the electrode ingot mold 1, and the cushion block 3 is placed in advance at the upper mouth of the electrode ingot mold 1. The height of the cushion block 3 is confirmed according to the tonnage (ingot shape) of the electrode ingot to be cast. After assembly, it can wait for casting.

[0034] When the tonnage of electrode ingots to be produced exceeds the maximum production tonnage of the electrode ingot mould 1, an extension box 4 can be added to the electrode ingot mould 1, and then the cushion block 3 is stacked in advance at the upper mouth of the extension box 4. The height of the cushion block 3 is confirmed according to the shape of the electrode ingot to be cast, and then the insulation board fixing device 2 with the insulation board fixed is hoisted as a whole and placed into the electrode ingot mould 1 with the extension box 4 added. After assembly, it can wait for casting.

[0035] Note: the spacer 3 in the present invention may be used or not, and whether to use it or not and how much to use is determined according to the shape of the electrode ingot to be cast.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A split riser for consumable electrode ingots for electroslag remelting, characterized in that: The invention comprises a heat preservation plate fixing device (2) and a cushion block (3); the heat preservation plate fixing device (2) can be inserted into the inner cavity of the electrode ingot mold (1) from the upper end of the electrode ingot mold (1); the upper end of the heat preservation plate fixing device (2) is provided with a flange (2-1) that can be hung on the outer wall of the upper opening of the electrode ingot mold (1), and the lower end is provided with a bracket (2-2) that can place an arc-shaped heat preservation plate; the cushion block (3) can be placed between the upper end of the electrode ingot mold (1) and the lower end of the flange (3) to adjust the placement height of the heat preservation plate fixing device (2), thereby realizing the adjustment of the hanging plate height.

2. The split riser for consumable electrode ingots for electroslag remelting according to claim 1, characterized in that: The outer diameter Φ2 of the insulation board fixing device (2) is 3-5 mm smaller than the inner cavity diameter Φ1 of the electrode ingot mold (1); the outer wall thickness t1 of the insulation board fixing device (2) is 100 mm; and the height H1 of the insulation board fixing device (2) is 1500 mm.

3. The split riser for consumable electrode ingots for electroslag remelting according to claim 1, characterized in that: The inner concave thickness t2 of the bracket (2-2) is 50 mm; and the height h1 of the bracket (2-2) is 580 mm.

4. The split riser for consumable electrode ingots for electroslag remelting according to claim 1, characterized in that: The thickness of the flange (2-1) is 150 mm; the outer diameter Φ3 of the flange (2-1) is 1300 mm.

5. The split riser for consumable electrode ingots for electroslag remelting according to claim 1, characterized in that: The insulation board fixing device (2) is made of grey iron.

6. The split riser for consumable electrode ingots for electroslag remelting according to claim 1, characterized in that: The length L of the cushion block (3) is 250 mm, the width W is 150 mm, and the height h2 is adjusted according to actual needs.

7. The split riser for consumable electrode ingots for electroslag remelting according to claim 1, characterized in that: The cushion block (3) is made of grey iron.

8. The split riser for consumable electrode ingots for electroslag remelting according to claim 1, characterized in that: It also includes an extension box (4) that can be fixed on the upper end of the electrode ingot mold (1), and is used to produce large-tonnage consumable electrode ingots for electroslag remelting; the inner cavity diameter of the extension box (4) is consistent with the inner cavity diameter of the electrode ingot mold (1).

9. The split riser for consumable electrode ingots for electroslag remelting according to claim 8, characterized in that: The lower part of the extension box (4) is provided with a female opening that matches with the sub-opening at the upper end of the electrode ingot mold (1); the height H2 of the extension box (4) is 900 mm.

10. The split riser for consumable electrode ingots for electroslag remelting according to claim 8, characterized in that: The extension box (4) is made of grey iron.

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