An adding device for silicon particle inoculant for high-strength ductile cast iron production

Abstract

This invention relates to the field of cast iron production technology, and more particularly to a device for adding silicon inoculant in the production of high-strength ductile iron. The device includes a furnace body, a drive motor mounted on the upper surface of the furnace body, an mounting plate fixedly installed on the side wall of the furnace body, a storage box for filling the inoculant fixedly mounted on the upper surface of the mounting plate, a hollow rod fixedly mounted on the surface of the mounting plate, and a sliding insert rod inserted into the hollow rod in a sealed manner. A gear ring is fixedly mounted on the output shaft of the drive motor via multiple connecting rods. A reciprocating screw is vertically rotatably mounted on the upper surface of the furnace body, a sliding plate threaded onto the reciprocating screw, the lower surface of the sliding plate being fixedly connected to the top of the insert rod, and a gear fixedly mounted on the reciprocating screw, meshing with the gear ring. The inoculant located in the storage box is intermittently and automatically added to the furnace body, eliminating the need for manual addition, avoiding prolonged work in high-temperature environments, and reducing labor intensity.

Description

Technical Field

[0001] This invention relates to the field of cast iron production technology, and in particular to a device for adding silicon inoculant in the production of high-strength ductile iron. Background Technology

[0002] Ductile iron is a high-strength cast iron material. It is produced by spheroidizing and inoculating to obtain spheroidal graphite, which effectively improves the mechanical properties of cast iron. By adding an inoculant that promotes graphite formation during the solidification of cast iron, the shape, size, and spheroid density of the graphite, as well as the amount of graphite relative to iron carbide, can be controlled.

[0003] Existing inoculants are usually added manually to the smelting furnace to fuse with the molten iron. However, workers are exposed to high temperatures for extended periods, which is physically demanding and poses certain safety hazards. Summary of the Invention

[0004] The purpose of this invention is to address the following shortcomings in the existing technology: existing inoculants are usually added manually to the smelting furnace so that the inoculant can fuse with the molten iron in the furnace. This requires workers to work in a high-temperature environment for a long time, which is labor-intensive and poses certain safety hazards. Therefore, this invention proposes a device for adding silicon particle inoculants in the production of high-strength ductile iron.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A device for adding silicon inoculant in the production of high-strength ductile iron includes a furnace body. A drive motor is provided on the upper surface of the furnace body. The drive motor is fixedly connected to the furnace body via a connecting rod. The output shaft of the drive motor passes through the furnace body and is fixedly mounted with a rotating rod. Multiple stirring rods are fixedly mounted on the surface of the rotating rod. An installation plate is fixedly mounted on the side wall of the furnace body. A storage box for filling inoculant is fixedly mounted on the upper surface of the installation plate. A hollow rod is fixedly mounted on the surface of the installation plate. An insert rod is slidably inserted into the hollow rod. The hollow rod is connected to the storage box and the furnace body via a feed pipe and a discharge pipe, respectively. Both the feed pipe and the discharge pipe are equipped with one-way valves.

[0007] The output shaft of the drive motor is fixedly mounted with a gear ring via multiple connecting rods. A reciprocating screw is vertically and rotatably mounted on the upper surface of the furnace body. A sliding plate is threaded onto the reciprocating screw. The lower surface of the sliding plate is fixedly connected to the top of the insert rod. A gear that meshes with the gear ring is fixedly mounted on the reciprocating screw.

[0008] Preferably, the one-way valve in the feed pipe is directed from inside the storage box to inside the hollow rod, and the one-way valve in the discharge pipe is directed from inside the hollow rod to inside the furnace body.

[0009] Preferably, the storage box is equipped with a crushing component, which is used to crush the agglomerated inoculant.

[0010] Preferably, the crushing assembly includes a vertically rotating shaft installed in a storage box and multiple crushing rollers. The multiple crushing rollers are fixedly installed in a circumferential shape on the surface of the rotating shaft, and the rotating shaft is controlled to rotate by a transmission component.

[0011] Preferably, the transmission component includes two sprockets, a chain, and a fixing rod. The fixing rod is fixedly installed on the upper surface of the reciprocating lead screw. The two sprockets are respectively fixedly sleeved on the rotating shaft and the fixing rod, and the chain is engaged and wound around the two sprockets.

[0012] Preferably, a feeding pipe is fixedly installed on the upper surface of the furnace body, and a discharging pipe is fixedly installed on the lower surface of the furnace body.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. When the output shaft of the drive motor rotates with the rotating rod and multiple stirring rods, the inoculant in the storage box will be intermittently and automatically added into the furnace body through the cooperation of the gear ring, reciprocating screw, gear, slide plate, hollow rod and insert rod. No manual addition is required, which avoids workers working in high temperature environment for a long time and reduces labor intensity.

[0015] 2. As the reciprocating screw rotates, the shaft in the crushing assembly, driven by the transmission component, also rotates multiple crushing rollers within the storage box. This breaks up any clumps of inoculant within the storage box, preventing the clumps of silicon inoculant from failing to fully fuse with the molten iron. This improves the fusion degree between the silicon inoculant and the molten iron, saves fusion time, and increases the efficiency of fusion between the silicon inoculant and the molten iron. Attached Figure Description

[0016] Figure 1 This is a front perspective view of a device for adding silicon particle inoculant in the production of high-strength ductile iron, as proposed in this invention.

[0017] Figure 2 This is a top-view three-dimensional structural diagram of a device for adding silicon particle inoculant in the production of high-strength ductile iron, as proposed in this invention.

[0018] Figure 3 for Figure 1 Enlarged view of the structure at point A in the middle;

[0019] Figure 4 for Figure 2 Enlarged view of the structure at point B in the middle.

[0020] In the diagram: 1 Furnace body, 2 Drive motor, 3 Connecting rod, 4 Storage box, 5 Hollow rod, 6 Insert rod, 7 Feed pipe, 8 Discharge pipe, 9 Gear ring, 10 Reciprocating screw, 11 Slide plate, 12 Gear, 13 Rotating shaft, 14 Crushing roller, 15 Sprocket, 16 Chain, 17 Fixing rod. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0022] The terms used in this invention, such as "upper," "lower," "left," "right," "middle," and "one," are merely for clarity of description and are not intended to limit the scope of the invention. Any changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention.

[0023] Reference Figures 1-4 A device for adding a silicon particle inoculant in the production of high-strength ductile iron includes a furnace body 1. A feeding pipe is fixedly installed on the upper surface of the furnace body 1, and a discharging pipe is fixedly installed on the lower surface of the furnace body 1. A drive motor 2 is provided on the upper surface of the furnace body 1. The drive motor 2 is fixedly connected to the furnace body 1 through a connecting rod 3. The output shaft of the drive motor 2 passes through the furnace body 1 and is fixedly installed with a rotating rod. Multiple stirring rods are fixedly installed on the surface of the rotating rod. An installation plate is fixedly installed on the side wall of the furnace body 1. A storage box 4 for filling inoculant is fixedly installed on the upper surface. A hollow rod 5 is fixedly installed on the surface of the mounting plate. A rod 6 is inserted into the hollow rod 5 in a sealed sliding manner. The hollow rod 5 is connected to the storage box 4 and the furnace body 1 through the feed pipe 7 and the discharge pipe 8 respectively. Both the feed pipe 7 and the discharge pipe 8 are equipped with one-way valves. The conduction direction of the one-way valve in the feed pipe 7 is from the inside of the storage box 4 to the inside of the hollow rod 5. The conduction direction of the one-way valve in the discharge pipe 8 is from the inside of the hollow rod 5 to the inside of the furnace body 1.

[0024] The output shaft of the drive motor 2 is fixedly mounted with a gear ring 9 via multiple connecting rods. A reciprocating screw 10 is vertically and rotatably mounted on the upper surface of the furnace body 1. A sliding plate 11 is threaded onto the reciprocating screw 10. The lower surface of the sliding plate 11 is fixedly connected to the top of the insert rod 6. A gear 12 that meshes with the gear ring 9 is fixedly mounted on the reciprocating screw 10.

[0025] When the drive motor 2 is started, the output shaft of the drive motor 2 rotates with the rotating rod and multiple stirring rods inside the furnace body 1. The gear ring 9 also rotates together, and the gear 12, which meshes with the gear ring 9, rotates the reciprocating screw 10. The slide plate 11, which is threaded onto the reciprocating screw 10, moves the insert rod 6 vertically back and forth inside the hollow rod 5. During the movement, the volume inside the hollow rod 5 changes continuously from large to small and then from small to large. When the volume inside the hollow rod 5 increases, the pressure decreases, and the inoculant in the storage box 4 enters the hollow rod 5 from the feed pipe 7. When the volume inside the hollow rod 5 decreases, the pressure increases, and the inoculant in the hollow rod 5 enters the furnace body 1 from the discharge pipe 8 and mixes with the molten iron inside the furnace body 1.

[0026] The storage box 4 is equipped with a crushing component, which is used to crush the agglomerated inoculant. The crushing component includes a rotating shaft 13 that is vertically rotatably installed in the storage box 4 and multiple crushing rollers 14. The multiple crushing rollers 14 are fixedly installed in a circumferential shape on the surface of the rotating shaft 13. The rotating shaft 13 is controlled to rotate by a transmission component, which includes two sprockets 15, a chain 16 and a fixing rod 17. The fixing rod 17 is fixedly installed on the upper surface of the reciprocating screw 10. The two sprockets 15 are respectively fixedly sleeved on the rotating shaft 13 and the fixing rod 17. The chain 16 is engaged and wound around the two sprockets 15.

[0027] When the reciprocating screw 10 rotates, the fixed rod 17 also rotates. Then, under the transmission action of the two sprockets 15 and the chain 16, the rotating shaft 13 will drive multiple crushing rollers 14 to rotate inside the storage box 4. During the rotation, the crushing rollers 14 can break up the clumps of inoculant in the storage box 4, preventing the clumps of silicon inoculant from entering the molten iron and failing to fully fuse, thereby improving the fusion degree of silicon inoculant and molten iron, saving fusion time, improving the fusion efficiency of silicon inoculant and molten iron, and saving electricity costs without the need for an additional electric drive device.

[0028] In this invention, when the drive motor 2 is started, the output shaft of the drive motor 2 rotates the gear ring 9, which in turn drives the reciprocating screw 10 to rotate. The slide plate 11, which is threaded onto the reciprocating screw 10, moves the insert rod 6 vertically back and forth within the hollow rod 5. When the volume inside the hollow rod 5 increases, the pressure decreases, and the inoculant in the storage box 4 enters the hollow rod 5 from the feed pipe 7. When the volume inside the hollow rod 5 decreases, the pressure increases, and the inoculant in the hollow rod 5 enters the furnace body 1 from the discharge pipe 8 and mixes with the molten iron in the furnace body 1. The inoculant in the storage box 4 is intermittently and automatically added to the furnace body 1 without manual addition, thus avoiding long-term work in high-temperature environments and reducing labor intensity.

[0029] In this invention, unless otherwise explicitly specified and limited, the terms “installation,” “connection,” “linking,” “fixing,” etc., should be interpreted broadly.

[0030] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A device for adding silicon inoculant in the production of high-strength ductile iron, comprising a furnace body (1), characterized in that, The upper surface of the furnace body (1) is provided with a drive motor (2). The drive motor (2) is fixedly connected to the furnace body (1) through a connecting rod (3). The output shaft of the drive motor (2) passes into the furnace body (1) and is fixedly installed with a rotating rod. Multiple stirring rods are fixedly installed on the surface of the rotating rod. An installation plate is fixedly installed on the side wall of the furnace body (1). A storage box (4) for filling inoculant is fixedly installed on the upper surface of the installation plate. A hollow rod (5) is fixedly installed on the surface of the installation plate. An insert rod (6) is sealed and slidably inserted inside the hollow rod (5). The hollow rod (5) is connected to the storage box (4) and the furnace body (1) through the feed pipe (7) and the discharge pipe (8) respectively. A one-way valve is provided in both the feed pipe (7) and the discharge pipe (8). The output shaft of the drive motor (2) is fixedly mounted with a gear ring (9) via multiple connecting rods. A reciprocating screw (10) is vertically rotatably mounted on the upper surface of the furnace body (1). A sliding plate (11) is threaded onto the reciprocating screw (10). The lower surface of the sliding plate (11) is fixedly connected to the top of the insert rod (6). A gear (12) is fixedly mounted on the reciprocating screw (10) and meshes with the gear ring (9). A crushing component is provided inside the storage box (4). The crushing component is used to crush the agglomerated inoculant. The crushing component includes a rotating shaft (13) vertically rotatably mounted inside the storage box (4) and multiple crushing rollers (14). The multiple crushing rollers (14) are circumferentially fixedly mounted on the surface of the rotating shaft (13). The rotating shaft (13) is controlled to rotate by a transmission component.

2. The device for adding silicon particle inoculant for the production of high-strength ductile iron according to claim 1, characterized in that, The one-way valve in the feed pipe (7) is directed from the storage box (4) to the hollow rod (5), and the one-way valve in the discharge pipe (8) is directed from the hollow rod (5) to the furnace body (1).

3. The device for adding silicon particle inoculant for the production of high-strength ductile iron according to claim 1, characterized in that, The transmission component includes two sprockets (15), a chain (16) and a fixing rod (17). The fixing rod (17) is fixedly installed on the upper surface of the reciprocating screw (10). The two sprockets (15) are respectively fixedly sleeved on the rotating shaft (13) and the fixing rod (17). The chain (16) is engaged and wound around the two sprockets (15).

4. The device for adding silicon particle inoculant for the production of high-strength ductile iron according to claim 1, characterized in that, A feeding pipe is fixedly installed on the upper surface of the furnace body (1), and a discharging pipe is fixedly installed on the lower surface of the furnace body (1).

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