Grey cast iron smelting and pouring inoculant adding device

Abstract

The utility model discloses a gray cast iron smelting pouring inoculant adding equipment, including support, the support middle part rotation is installed with the mixing cylinder, the mixing cylinder upside fixed mounting has the material pipe, the support bottom fixed mounting has the pouring ladle, the pouring ladle opening is located below mixing cylinder opening, the pouring ladle lower extreme is butt joint molten iron ladle entrance, and the molten iron after smelting is passed into the liquid inlet pipe, and the down flow enters the mixing cylinder, then from the feeding hopper pours into the inoculant, and through the material pipe falls into the mixing cylinder and mixes into the molten iron, and the mixing cylinder rotation can with the pouring ladle be inclined to the opening, and the molten iron mixed with inoculant pours into the pouring ladle, and through the pouring ladle injection molten iron ladle.

Description

Technical Field

[0001] This utility model relates to the field of inoculated cast iron, and in particular to an inoculant addition device for gray cast iron smelting and casting. Background Technology

[0002] An inoculant is an additive added to molten alloy to promote the preferential nucleation of a certain phase. Adding an inoculant is a crucial process in casting. Currently, the common practice is to first add the inoculant to the ladle, and then pour the molten iron into it. However, this premature addition of the inoculant results in poor inoculation and is prone to inoculation degradation. Therefore, some casting processes now involve manually adding the inoculant simultaneously with the pouring of molten iron. One person operates the ladle for pouring, while another adds the inoculant, requiring two people and posing safety risks. Furthermore, it makes it difficult to stably control the inoculant flow rate and results in uneven inoculant distribution. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an inoculant addition device for gray cast iron smelting and casting, which solves the current pain points in this field.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution: A gray cast iron smelting and casting inoculant addition device includes a support frame, a mixing cylinder rotatably mounted in the middle of the support frame, a receiving pipe fixedly mounted on the upper side of the mixing cylinder, and a casting hopper fixedly mounted at the bottom of the support frame. The opening of the casting hopper is located below the opening of the mixing cylinder, and the lower end of the casting hopper is connected to the inlet of the molten iron ladle.

[0005] An mounting plate is fixedly installed on the top of the bracket, and an inlet pipe and a feeding hopper are fixedly installed on the mounting plate. The inlet pipe and the feeding hopper are respectively located above the mixing cylinder and the opening of the receiving pipe.

[0006] A support plate is rotatably mounted on the top edge of the pouring hopper near the mixing cylinder. The end of the support plate near the mixing cylinder is raised, and a torsion spring is provided on the rotating shaft of the support plate.

[0007] A lower hanging column is fixedly installed below the mounting plate. The lower hanging column is located next to the liquid inlet pipe. A cover plate is horizontally slidably installed at the lower end of the lower hanging column, and the cover plate can cover the lower opening of the liquid inlet pipe.

[0008] A push-pull plate is fixedly installed at the end of the cover plate away from the liquid inlet pipe, and a closing spring is connected between the push-pull plate and the lower hanging column.

[0009] In summary, the advantages of this utility model compared to the prior art are as follows: molten iron is fed into the inlet pipe and flows down into the mixing cylinder. Then, an inoculant is added from the feeding hopper and falls into the mixing cylinder through the receiving pipe to mix with the molten iron. The rotation of the mixing cylinder tilts the opening toward the casting hopper, allowing the molten iron mixed with the inoculant to be poured into the casting hopper and then into the ladle. The molten iron is mixed with the inoculant in batches in the mixing cylinder, resulting in a more uniform mixture. This device is easy to operate and can be operated by one person. Attached Figure Description

[0010] The above and other objects, features, and advantages of the present invention will become readily apparent from the following detailed description of exemplary embodiments, taken in conjunction with the accompanying drawings. Several embodiments of the present invention are illustrated in the drawings by way of example and not limitation, in which: Figure 1 This is a schematic diagram of a device for adding inoculants during the smelting and casting of gray cast iron.

[0011] Explanation of reference numerals in the attached drawings: 10, bracket; 11, mixing cylinder; 12, receiving pipe; 13, mounting plate; 14, liquid inlet pipe; 15, feeding hopper; 16, casting hopper; 17, support plate; 18, lower hanging column; 19, cover plate; 20, push-pull plate; 21, closing spring. Detailed Implementation

[0012] The utility model will be further described in detail below with reference to the accompanying drawings.

[0013] A device for adding inoculant during the smelting and casting of gray cast iron includes a support 10. A mixing cylinder 11 is rotatably mounted in the middle of the support 10, with its opening facing upwards. A receiving pipe 12 is fixedly mounted on the upper side of the mixing cylinder 11, with its opening facing upwards. An mounting plate 13 is fixedly mounted on the top of the support 10, and an inlet pipe 14 and a feeding hopper 15 are fixedly mounted on the mounting plate 13. The inlet pipe 14 and the feeding hopper 15 are respectively located above the openings of the mixing cylinder 11 and the receiving pipe 12. Molten iron is fed into the inlet pipe 14 and flows downwards into the mixing cylinder 11. Then, inoculant is added from the feeding hopper 15 and falls into the mixing cylinder 11 through the receiving pipe 12 to mix with the molten iron. A casting hopper 16 is fixedly mounted at the bottom of the support 10, with its opening located below the opening of the mixing cylinder 11. The mixing cylinder 11 can be rotated to tilt its opening toward the pouring hopper 16, and pour molten iron mixed with inoculant into the pouring hopper 16. The lower end of the pouring hopper 16 can connect to the inlet of the molten iron ladle. A support plate 17 is rotatably installed on the top edge of the pouring hopper 16 near the mixing cylinder 11. The end of the support plate 17 near the mixing cylinder 11 is raised. A torsion spring is provided on the rotating shaft of the support plate 17. When the mixing cylinder 11 is flipped, the lower side of the opening first contacts the raised end of the support plate 17. The torsion spring acts as a buffer. After the support plate 17 rotates to be parallel to the outer wall of the mixing cylinder 11, it supports the mixing cylinder 11 as a support.

[0014] A lower hanging column 18 is fixedly installed below the mounting plate 13. The lower hanging column 18 is located next to the liquid inlet pipe 14. A cover plate 19 is horizontally slidably installed at the lower end of the lower hanging column 18. The cover plate 19 can cover the lower opening of the liquid inlet pipe 14 and stop the flow of molten iron when the mixing cylinder 11 rotates. A push-pull plate 20 is fixedly installed at the end of the cover plate 19 away from the liquid inlet pipe 14. A closing spring 21 is connected between the push-pull plate 20 and the lower hanging column 18. The push-pull plate 20 can be pushed by the mixing cylinder 11 when it is lifted to open the liquid inlet pipe 14. When the mixing cylinder 11 rotates downward, the push-pull plate 20 slides to close the lower opening of the liquid inlet pipe 14 under the action of the closing spring 21.

[0015] The above description is merely an exemplary embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model. The scope of protection of the present utility model is determined by the appended claims.

Claims

1. A device for adding inoculants during the smelting and casting of gray cast iron, characterized in that: Includes a support (10), a mixing cylinder (11) is rotatably mounted in the middle of the support (10), a receiving pipe (12) is fixedly mounted on the upper side of the mixing cylinder (11), and a casting hopper (16) is fixedly mounted at the bottom of the support (10). The opening of the casting hopper (16) is located below the opening of the mixing cylinder (11), and the lower end of the casting hopper (16) is connected to the inlet of the molten iron ladle.

2. The inoculant addition equipment for gray cast iron smelting and casting according to claim 1, characterized in that: The bracket (10) is fixedly mounted with an installation plate (13), and an inlet pipe (14) and a feeding hopper (15) are fixedly mounted on the installation plate (13). The inlet pipe (14) and the feeding hopper (15) are respectively located above the opening of the mixing cylinder (11) and the receiving pipe (12).

3. The inoculant addition equipment for gray cast iron smelting and casting according to claim 1, characterized in that: A support plate (17) is rotatably mounted on the top edge of the pouring hopper (16) near the mixing cylinder (11). The end of the support plate (17) near the mixing cylinder (11) is raised, and a torsion spring is provided on the rotating shaft of the support plate (17).

4. The inoculant addition equipment for gray cast iron smelting and casting according to claim 2, characterized in that: A lower hanging column (18) is fixedly installed below the mounting plate (13). The lower hanging column (18) is located next to the liquid inlet pipe (14). A cover plate (19) is horizontally slidably installed at the lower end of the lower hanging column (18). The cover plate (19) can cover the lower opening of the liquid inlet pipe (14).

5. The inoculant addition equipment for gray cast iron smelting and casting according to claim 4, characterized in that: A push-pull plate (20) is fixedly installed at the end of the cover plate (19) away from the liquid inlet pipe (14), and a closing spring (21) is connected between the push-pull plate (20) and the lower hanging column (18).

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