Split type ladle nozzle for casting fan-shaped ladle

Abstract

The utility model discloses a split type ladle nozzle for casting a fan-shaped ladle, which belongs to the technical field of casting ladles and comprises two shoulder pads respectively arranged on two sides of the front edge of a shell of the fan-shaped ladle, a base arranged at a sprue between the two shoulder pads and a sprue brick arranged on the base. And the shoulder pad and the base as well as the sprue brick and the base are adhered through a refractory adhesive. The integral ladle nozzle is divided into the two shoulder pads, the base and the sprue brick, all the components are connected through the refractory binder, compared with an existing integral ladle nozzle, all the split components can be replaced independently, the sprue brick bears erosion of molten iron, the sprue brick can be replaced independently when a sprue is damaged, replacement cost is effectively reduced, and replacement efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of casting ladles, in particular to a split ladle spout for a casting fan-shaped ladle. Background Art

[0002] The fan-shaped ladle has a turning amount that is proportional to the rotation angle, which meets the requirement of equal casting and produces cast pipes with uniform wall thickness in the centrifugal process. The fan-shaped ladle structure mainly includes: ladle shell, ladle lining and ladle mouth. The ladle shell is made of steel and includes structures such as lifting ears, lifting rings, baffles, clamps, exhaust holes, etc. The ladle lining adopts single or composite structures such as refractory brick masonry and refractory material casting; the ladle mouth is a prefabricated refractory brick. The ladle mouth gate is intermittently subjected to the scouring of high-temperature liquid metal, high-temperature erosion, hot and cold alternation, scouring and other comprehensive effects, resulting in the ladle mouth gate being the most vulnerable position of the fan-shaped ladle.

[0003] At present, fan-shaped spouts are mostly prefabricated integral spouts made of refractory materials, that is, the entire spout is a whole piece of refractory brick, but the erosion conditions of each part are different. The pouring nozzle position is most severely eroded and washed by high-temperature molten iron circulation and is the first to be damaged. When the spout is eroded, the curvature and height change, affecting normal production. When the spout is damaged, it is often necessary to replace the spout as a whole, which is costly.

[0004] Therefore, it is necessary to provide a split ladle spout for casting fan-shaped ladle to overcome the above problems. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a split ladle spout for a casting fan-shaped ladle, so that vulnerable parts can be separated and replaced separately, thereby reducing replacement costs and improving replacement efficiency.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A split ladle spout for casting a fan-shaped ladle, characterized in that it comprises two shoulder pads respectively arranged on both sides of the front edge of the fan-shaped ladle shell, a base arranged at the pouring gate between the two shoulder pads, and a pouring gate brick arranged on the base; the shoulder pads and the base, and the pouring gate brick and the base are all bonded by a refractory adhesive.

[0008] A further improvement of the technical solution of the utility model is that the bottom corners of the two shoulder pads are positioned with the edge of the cladding, the left sides of the two shoulder pads are connected to the side lining, the tops of the two shoulder pads are fixed with pressing blocks, and the contact positions of the two shoulder pads with the cladding and the lining are bonded with high-alumina refractory adhesive.

[0009] A further improvement of the technical solution of the utility model is that the bottom corner of the base is positioned with the edge of the cladding, the left side of the base is connected to the bottom lining, the base is in a concave shape with a low middle and high sides, and the base is bonded to the lining and the cladding with a high-alumina refractory adhesive.

[0010] A further improvement of the technical solution of the utility model is that the upper part of the pouring brick is in an arc shape.

[0011] A further improvement of the technical solution of the utility model is that the high-alumina refractory binder is made by mixing clay, high-alumina, mullite and corundum.

[0012] A further improvement of the technical solution of the utility model is that the two shoulder pads, the base and the pouring bricks are all prefabricated refractory bricks.

[0013] Due to the adoption of the above technical solution, the technical progress achieved by the utility model is:

[0014] The utility model divides the integral spout into two shoulder pads, a base and a pouring brick, and the components are connected by a refractory adhesive. Compared with the existing integral spout, the components of the split type can be replaced separately, and the pouring brick withstands the erosion of molten iron. When the pouring mouth is damaged, the pouring brick can be replaced separately, which effectively reduces the replacement cost and improves the replacement efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model 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 utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor;

[0016] Figure 1 It is a schematic diagram of a split-type ladle spout structure of a casting fan-shaped ladle provided in an embodiment of the utility model;

[0017] Figure 2 It is a three-dimensional view of the split mouth in the embodiment of the utility model;

[0018] Figure 3 This is a front view of a split-type bag mouth in an embodiment of the utility model;

[0019] Figure 4 This is a left view of the split mouth of the utility model embodiment;

[0020] Figure 5 This is a top view of a split-type bag mouth in an embodiment of the utility model;

[0021] Among them, 1. pressing block; 2. base; 3. shoulder pad; 4. pouring brick; 5. pallet; 6. baffle; 7. lifting ear; 8. cladding; 9. lining; 10. lifting ring. DETAILED DESCRIPTION

[0022] 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 device that includes 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 devices.

[0023] 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, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot 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 utility model, the meaning of "several" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0025] The present invention is further described in detail below with reference to the accompanying drawings and embodiments:

[0026] like Figure 1-5 As shown, a split ladle nozzle for casting a fan-shaped ladle comprises two shoulder pads 2 respectively arranged on both sides of the front edge of a shell 8 of the fan-shaped ladle, a base 3 arranged at the pouring gate between the two shoulder pads 2, and a pouring brick 4 arranged on the base 3. The pouring brick 4 is a flow channel for molten metal during casting of the fan-shaped ladle; the shoulder pads 2 and the base 3, and the pouring brick 4 and the base 3 are all bonded by a high-alumina refractory adhesive.

[0027] like Figure 1 As shown, the fan-shaped bag structure includes a bag shell 8, a bag lining 9 and a bag mouth. The bag shell 8 is made of steel and includes a pressing block 1, a clamping plate 5, a baffle 6, a lifting lug 7, a lifting ring 10, an exhaust hole and other structures. The bag lining 9 is a composite structure, with an outer layer of a refractory material casting layer and an inner layer of a refractory brick masonry layer.

[0028] Furthermore, the bottom corners of the two shoulder pads 2 are positioned with the edges of the cladding 8, the left sides of the two shoulder pads 2 are connected to the side lining 9, the tops of the two shoulder pads 2 are fixed with a pressing block 1, and the contact positions of the two shoulder pads 2 and the cladding 8 and lining 9, as well as the cladding 8 and lining 9 are bonded with a high-alumina refractory adhesive.

[0029] Furthermore, the bottom corner of the base 3 is positioned with the edge of the cladding 8, and the left side of the base 3 is connected to the bottom lining 9. The base 3 is in a concave shape with a low middle and high sides. The base 3 is bonded to the lining 9 and the cladding 8 with a high-alumina refractory adhesive.

[0030] Further, the top of the pouring brick 4 is in an arc shape. Placed on the base 3, it is a refractory brick at the pouring mouth of the fan-shaped bag. It is eroded and washed by the high-temperature molten iron circulation, and is the first to be damaged, and can be replaced separately.

[0031] Furthermore, the high-alumina refractory binder is made by mixing clay, high-alumina, mullite and corundum.

[0032] Furthermore, the two shoulder pads 2, the base 3 and the pouring brick 4 are all prefabricated refractory bricks.

[0033] Furthermore, refractory bricks are made of a mixture of corundum, mullite, silicon carbide, graphite, high alumina, magnesium carbon, clay and refractory fibers.

[0034] Furthermore, the refractory fiber is made by mixing aluminum silicate fiber, polycrystalline mullite fiber, alumina fiber, zirconia fiber, quartz glass fiber and steel fiber.

[0035] Specifically, the powder of refractory bricks is bauxite, the aggregate is mullite particles, aluminum silicate refractory fiber and steel fiber are added, a small amount of water is added to mix, injected into a prefabricated mold, demolded after molding, dried, and fired. Refractory fiber can enhance the strength and toughness of refractory bricks and extend the service life. The addition amount is 0.2-5%.

[0036] It should be supplemented that the two shoulder pads 2, the base 3 and the pouring brick 4 of each component of the split nozzle can be cut, and the gap between the two shoulder pads 2, the base 3 and the pouring brick 4 of each component is controlled within 2 mm.

[0037] After masonry, it was placed at room temperature, then baked and used while hot. The slag was seriously repaired offline. After three uses, the pouring brick 4 was seriously eroded, the height was reduced, the arc surface disappeared, while the two shoulder pads and the base remained in good condition.

[0038] Replace the new pouring brick, use a pneumatic pick or electric pick to knock off the old pouring brick, clean the surface of the base, and use a high-alumina refractory adhesive to bond the new pouring brick. The integral nozzle weighs 45kg, while the split design weighs only 7.5kg. The integral nozzle and the split nozzle are made of the same material. The cost of replacing the split nozzle is reduced by about 83%, and the replacement efficiency is higher.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A split spout for a cast fan-shaped ladle, characterized in that: The invention comprises two shoulder pads (2) respectively arranged on both sides of the front edge of a fan-shaped bag shell (8), a base (3) arranged at a pouring mouth between the two shoulder pads (2), and a pouring gate brick (4) arranged on the base (3); the shoulder pads (2) and the base (3), and the pouring gate brick (4) and the base (3) are bonded together by a high-alumina refractory adhesive.

2. The split-type ladle spout for casting fan-shaped ladle according to claim 1, characterized in that: The bottom corners of the two shoulder pads (2) are locked with the edge of the cladding (8), the left sides of the two shoulder pads (2) are connected to the side lining (9), the tops of the two shoulder pads (2) are fixed by a pressing block (1), and the contact positions of the two shoulder pads (2) and the cladding (8) and the lining (9) are bonded with a high-alumina refractory adhesive.

3. The split-type ladle spout for casting fan-shaped ladle according to claim 1, characterized in that: The bottom corner of the base (3) is locked with the edge of the cladding (8), the left side of the base (3) is connected to the bottom lining (9), the base (3) is in a concave shape with a low middle and high sides, and the base (3) and the lining (9) and the cladding (8) are bonded by a high-alumina refractory adhesive.

4. The split-type ladle spout for casting fan-shaped ladle according to claim 1, characterized in that: The upper part of the pouring brick (4) is in an arc shape.

5. The split-type ladle spout for casting fan-shaped ladle according to claim 1, characterized in that: The high-alumina refractory binder is made by mixing clay, high-alumina, mullite and corundum.

6. The split-type ladle spout for casting fan-shaped ladle according to claim 1, characterized in that: The two shoulder pads (2), the base (3) and the pouring gate brick (4) are all prefabricated refractory bricks.

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