Ladle slag filtering device

Abstract

The utility model discloses a ladle filter residue device, including ladle, be equipped with the spout on the ladle still include: support, the both sides of spout are arranged with support, and support is fixed with the outer wall of ladle, the pivot, and the pivot is swing joint with support, the refractory blanket for with metal solution liquid surface cooperation to filter liquid surface supernatant, and the refractory blanket is cooperated with spout, the pressure plate of the refractory blanket exerting pressure makes the refractory blanket and metal solution liquid surface keep cooperation, and the pressure plate is fixed with the pivot, and the refractory blanket is fixed with the pressure plate, the utility model discloses can filter the supernatant in ladle.

Description

Technical Field

[0001] This utility model relates to the field of casting, specifically to a ladle slag filtering device. Background Technology

[0002] Casting is a method of pouring liquid metal into a casting cavity that conforms to the shape of the part, and then allowing it to cool and solidify to obtain the part or blank. The material being cast is often a metal that was originally solid but was heated to a liquid state (e.g., copper, iron, aluminum, tin, lead, etc.), while the material of the mold can be sand, metal, or even ceramic.

[0003] After smelting, the metal is poured into a ladle and undergoes processes such as spheroidization and inoculation. Impurities in the molten metal form slag. Although the slag is filtered before pouring into the ladle, a small amount of impurities still remain in the filtered molten metal. Furthermore, the choice and application method of the inoculant during the inoculation process in the ladle can affect the inoculation effect, potentially leading to impurities after inoculation. For example, using pure silicon or pure ferrosilicon as an inoculant is ineffective because silicon dioxide requires heterogeneous nucleation with calcium, strontium, and barium sulfides to prevent supercooling and white cast iron tendencies. Proper inoculant selection and scientific application methods can reduce impurity formation.

[0004] Regardless of the cause of the impurities, if the impurities in the molten metal cannot be removed when the molten metal is poured from the ladle into the sand mold cavity, it will affect the quality of the casting after pouring, resulting in a low casting qualification rate or even scrap. Utility Model Content

[0005] This invention provides a ladle slag filtering device, which can filter the floating slag in the ladle.

[0006] The technical solutions to the above technical problems are as follows:

[0007] The ladle filter device includes a ladle with a pouring nozzle, and further includes:

[0008] Supports are provided on both sides of the spout, and the supports are fixed to the outer wall of the spout.

[0009] The pivot is movably connected to the bracket;

[0010] A refractory blanket used to work with the surface of a molten metal to filter out slag on the surface of the liquid. The refractory blanket is used in conjunction with a spout.

[0011] A pressure plate that applies pressure to the refractory blanket to keep it in contact with the surface of the molten metal. The pressure plate is fixed to the rotating shaft, and the refractory blanket is fixed to the pressure plate.

[0012] Furthermore, the bracket includes a support rod and a bushing. The support rod is fixed to the outer wall of the pouring ladle, the bushing is located above the pouring nozzle and fixed to the support rod, and the rotating shaft is movably connected to the bushing.

[0013] Furthermore, the rotating shaft includes a rotating shaft body and a baffle for restricting the rotating shaft body from sliding out along the support axis. The rotating shaft body passes through the support, and the baffle is fixed to the end of the rotating shaft body.

[0014] Furthermore, the pressure plate includes a pressure plate body and a handle. The pressure plate body is fixed to the rotating shaft, the pressure plate body is fixed to the fire-resistant blanket (5), and the handle is fixed to the pressure plate body.

[0015] Furthermore, it also includes a reduction gearbox, a turntable, and a coupling. A fixed shaft is fixed on the outer wall of the ladle, and a boom is connected to the fixed shaft. The reduction gearbox is fixed to the boom, the input end of the reduction gearbox is connected to the turntable, the output end of the reduction gearbox is fixed to the coupling, and the coupling is connected to the fixed shaft.

[0016] In this invention, since the refractory blanket is in contact with the surface of the molten metal, the scum is filtered out by the refractory blanket in contact with the surface of the molten metal. As the molten metal in the ladle is poured out, the surface of the molten metal will gradually decrease. Therefore, as the surface of the molten metal gradually decreases, the pressure generated by the pressure plate on the refractory blanket causes the rotating shaft to rotate adaptively to the decrease of the surface of the molten metal, thereby keeping the refractory blanket in contact with the surface of the molten metal. Attached Figure Description

[0017] Figure 1 This is a structural diagram of the casting ladle filter device of this utility model.

[0018] Figure 2 This is a cross-sectional structural diagram of the casting ladle filter device of this utility model.

[0019] Figure 3 This is a structural diagram showing the connection between the rotating shaft, the support, and the pressure plate, and its assembly with the spout and the fire-resistant blanket.

[0020] Labels in the attached diagram:

[0021] 1. Pouring ladle, 2. Sprinkler, 3. Support rod, 3a. Bushing, 3b. Shaft, 4. Shaft body, 4a. Baffle, 4b. Fire blanket, 5. Pressure plate, 6. Pressure plate body, 6a. Handle, 6b. Fixed shaft, 7. Reduction gearbox, 8. Turntable, 9. Boom, 10. Detailed Implementation

[0022] like Figures 1 to 3 As shown, the casting ladle filter device of this utility model includes a casting ladle 1, a support 3, a rotating shaft 4, a refractory blanket 5, and a pressure plate 6. The following is a detailed description of each part and the relationship between them.

[0023] The ladle 1 is barrel-shaped and has a spout 2. The spout 2 is located at the open end of the ladle 1. When the ladle 1 is tilted, the molten metal inside the ladle 1 flows out from the spout 2 to the outside of the ladle 1.

[0024] Supports 3 are arranged on both sides of the nozzle 2, and the supports 3 are fixed to the outer wall of the ladle 1. The support 3 includes a support rod 3a and a bushing 3b. The support rod 3a is fixed to the outer wall of the ladle 1. The support rod 3a is preferably fixed to the outer wall of the ladle 1 by welding. The bushing 3b is located above the nozzle 2 and is fixed to the support rod 3a. The end of the support rod 3a is located above the nozzle 2. The bushing 3b is welded to the support rod 3a.

[0025] In this embodiment, since there are two brackets 3, the bushing 3b in one bracket 3 is an annular sleeve, and the bushing 3b in the other bracket 3 is an open sleeve. The open sleeve facilitates quick and easy installation of the rotating shaft 4. Alternatively, both bushings 3b can be open sleeves, or both bushings 3b can be annular sleeves.

[0026] The rotating shaft 4 is movably connected to the bracket 3 and to the bushing 3b. The rotating shaft 4 includes a rotating shaft body 4a and a baffle 4b for restricting the rotating shaft body 4a from sliding out along the axial direction of the bracket 3. The rotating shaft body 4a passes through the bracket 3, and the baffle 4b is fixed to the end of the rotating shaft body 4a. There are two baffles 4b; one baffle 4b is threadedly connected to the rotating shaft 4a after the rotating shaft 4a passes through the bushing 3b, and the other baffle 4b is fixed to the rotating shaft 4a by welding or threading.

[0027] During operation, as the molten metal in ladle 1 is poured out, the level of the molten metal gradually decreases. The refractory blanket 5 needs to maintain contact with the molten metal level. Therefore, as the molten metal level gradually decreases, the rotating shaft 4 adapts to this decrease and rotates accordingly. Consequently, the rotating shaft 4 can only be movably connected to the bushing 3b, meaning it cannot be fixedly connected. However, during operation, the rotating shaft body 4a may slide axially along the bushing 3b, potentially causing the rotating shaft 4 to separate from the support 3. To prevent this, a baffle 4b is added to the end of the rotating shaft body 4a. The baffle 4b acts as a barrier, preventing the rotating shaft 4 from separating from the support 3.

[0028] The refractory blanket 5 is used in conjunction with the surface of the molten metal to filter out scum on the surface. The refractory blanket 5 is used in conjunction with the spout 2. The material of the refractory blanket 5 is rock wool.

[0029] The pressure plate 6 applies pressure to the fire blanket 5 to maintain its contact with the molten metal surface. The pressure plate 6 is fixed to the rotating shaft 4, and the fire blanket 5 is also fixed to the pressure plate 6. The pressure plate 6 includes a pressure plate body 6a and a handle 6b. The pressure plate body 6a is preferably made of iron. The pressure plate body 6a is fixed to the rotating shaft 4. Preferably, the pressure plate body 6a and the rotating shaft body 4a are integrally formed. The pressure plate body 6a is fixed to the fire blanket 5, and the handle 6b is fixed to the pressure plate body 6a. The handle 6b facilitates operation when the rotating shaft 4 is assembled with the bracket 3.

[0030] This utility model also includes a reduction gearbox 8, a turntable 9, and a coupling. A fixed shaft 7 is fixed on the outer wall of the ladle 1. A boom 10 is connected to the fixed shaft 7. The boom 10 is movably connected to the fixed shaft 7. The reduction gearbox 8 is fixed to the boom 10. The input end of the reduction gearbox 8 is connected to the turntable 9. The output end of the reduction gearbox 8 is fixed to the coupling. The coupling is connected to the fixed shaft 7.

[0031] The reduction gearbox 8 consists of a housing and a gear transmission mechanism installed inside the housing. The gear transmission mechanism includes a first gear, a second gear, a first shaft, and a second shaft. The diameter of the first gear is smaller than the diameter of the second gear. The housing is fixed to the boom 10. The first shaft is pivotally connected to the housing. The first gear is fixed to the first shaft. The turntable 9 is connected to the first shaft. The second shaft is pivotally connected to the housing. The second gear is fixed to the second shaft. The second gear meshes with the first gear. One end of the second shaft extends out of the housing and is connected to a coupling.

[0032] When it is necessary to tilt the ladle 1, torque is applied to the turntable 9, which transmits power to the gearbox 8, which in turn transmits power to the fixed shaft 7, thereby driving the ladle 1 0 to rotate through the fixed shaft 7. During this process, the boom 10 remains stationary.

Claims

1. A filter cake apparatus, comprising a casting ladle (1) and a pouring nozzle (2) thereon, characterized in that, Also includes: Supports (3) are arranged on both sides of the spout (2), and the supports (3) are fixed to the outer wall of the ladle (1); The rotating shaft (4) is movably connected to the bracket (3); A refractory blanket (5) is used to filter slag on the surface of a molten metal solution. The refractory blanket (5) is used in conjunction with a spout (2). A pressure plate (6) applies pressure to the refractory blanket (5) to keep the refractory blanket (5) in contact with the surface of the molten metal. The pressure plate (6) is fixed to the rotating shaft (4), and the refractory blanket (5) is fixed to the pressure plate (6).

2. The ladle filter slag device according to claim 1, characterized in that, The bracket (3) includes a support rod (3a) and a bushing (3b). The support rod (3a) is fixed to the outer wall of the pouring ladle (1), the bushing (3b) is located above the pouring nozzle (2) and fixed to the support rod (3a), and the rotating shaft (4) is movably connected to the bushing (3b).

3. The ladle filter residue device according to claim 1, characterized in that, The rotating shaft (4) includes a rotating shaft body (4a) and a baffle (4b) for restricting the rotating shaft body (4a) from sliding out along the support (3) axially. The rotating shaft body (4a) passes through the support (3), and the baffle (4b) is fixed to the end of the rotating shaft body (4a).

4. The ladle filter residue device according to claim 1, characterized in that, The pressure plate (6) includes a pressure plate body (6a) and a handle (6b). The pressure plate body (6a) is fixed to the rotating shaft (4), the pressure plate body (6a) is fixed to the fire blanket (5), and the handle (6b) is fixed to the pressure plate body (6a).

5. The ladle filter slag apparatus according to any one of claims 1 to 4, characterized in that, It also includes a reduction gearbox (8), a turntable (9), and a coupling. A fixed shaft (7) is fixed on the outer wall of the ladle (1). A boom (10) is connected to the fixed shaft (7). The reduction gearbox (8) is fixed to the boom (10). The input end of the reduction gearbox (8) is connected to the turntable (9). The output end of the reduction gearbox (8) is fixed to the coupling. The coupling is connected to the fixed shaft (7).

Images