A quantitative feeding device for a molten iron holding furnace

Abstract

This invention discloses a quantitative feeding device for casting in an iron holding furnace, comprising a mold conveying frame, a casting support perpendicular to the mold conveying frame, and a docking conveyor line at the end of the casting support. A guide suspension is provided in the middle of the mold conveying frame. Simultaneously, independent reciprocating conveyor chains for conveying casting molds are symmetrically arranged on both sides of the mold conveying frame. A quantitative casting component is provided at the end of the casting support and directly above the mold conveying frame. A feeding component is provided on the casting support and on one side of the mold conveying frame to quantitatively cast each casting mold, preventing excessive molten iron from overflowing during the casting process.

Description

Technical Field

[0001] This invention relates to the field of casting technology, specifically to a quantitative feeding device for casting in a molten iron holding furnace. Background Technology

[0002] Casting involves pouring molten iron from a large container into a smaller, quantitative casting device, and then pouring the molten iron from the casting device into a casting mold for casting.

[0003] During the process of pouring molten iron into the casting mold, the operator needs to pay close attention to the water level line in the ladle. However, due to the high temperature of the molten iron, it is impossible to judge the current amount of molten iron with the naked eye. Since the pouring gate of the casting mold is generally high, the amount of molten iron poured can be slightly less, but too much can easily cause damage to workers and external equipment. Therefore, it is necessary to set up equipment with more precise pouring volume to pour molten iron to meet better production needs. Summary of the Invention

[0004] The purpose of this invention is to provide a quantitative feeding device for casting molten iron in a hot metal holding furnace, so as to solve the technical problems mentioned above.

[0005] The objective of this invention can be achieved through the following technical solutions:

[0006] A quantitative feeding device for casting in an iron holding furnace includes a mold conveying frame, a casting support perpendicular to the mold conveying frame, and a docking conveyor line at the end of the casting support. A material guide suspension is provided in the middle of the mold conveying frame, and independent reciprocating conveyor chains for conveying casting molds are symmetrically arranged on both sides of the mold conveying frame. A quantitative casting component is provided at the end of the casting support and directly above the mold conveying frame, and a material unloading component is provided on the casting support and on one side of the mold conveying frame.

[0007] As a further aspect of the present invention: the feeding assembly includes a feeding base fixedly mounted on the casting support, a feeding support plate rotatably mounted above the feeding base, an outer shell symmetrically rotatably mounted on the feeding support plate, an iron molten material feeding pot disposed inside the outer shell, and a feeding nozzle disposed at one end of the iron molten material feeding pot.

[0008] As a further embodiment of the present invention: the outer shell is rotatably mounted on the feeding support plate via feeding hinge blocks on both sides, the feeding support plate is symmetrically provided with lifting limiters, and the feeding base is symmetrically rotatably provided with lifting cylinders, the protruding end of the lifting cylinders passing through the lifting limiters and rotatably connected to the outer shell.

[0009] As a further embodiment of the present invention: a steering motor is fixedly installed on the unloading base and its output end is fixedly connected to the unloading support plate; a steering support leg is provided below the unloading support plate and is rotatably connected to the unloading base through a steering limit block below.

[0010] As a further aspect of the present invention: the quantitative casting assembly includes a quantitative main cylinder fixedly mounted on a casting support, quantitative secondary cylinders symmetrically arranged below the quantitative main cylinder, a quantitative partition plate arranged inside the quantitative main cylinder between the two quantitative secondary cylinders, and a casting cylinder arranged below the quantitative secondary cylinder, with a casting partition plate slidably arranged between the quantitative secondary cylinder and the casting cylinder.

[0011] As a further aspect of the present invention: the quantitative main cylinder is symmetrically provided with a residual cylinder on both sides and connected to the quantitative main cylinder through a residual discharge port at the top, and the height of the residual discharge port is the same as the height of the quantitative separator plate.

[0012] As a further aspect of the present invention: a cylinder suspension is provided on one side of the quantitative auxiliary cylinder and a casting cylinder is provided above it, and the extended end of the casting cylinder is fixedly connected to the casting partition.

[0013] As a further aspect of the present invention: several guide blocks are evenly spaced on the outer side of the independent reciprocating conveyor chain.

[0014] As a further aspect of the present invention: the guide suspension is provided with several free rollers at equal intervals.

[0015] The beneficial effects of this invention are:

[0016] (1) In this invention, the extended end of the lifting cylinder passes through the lifting limit and is rotatably connected to the outer shell. By controlling the extension and retraction of the lifting cylinder, the tilt of the outer shell can be controlled, thereby controlling the amount of molten iron poured into the quantitative casting assembly by the molten iron feeding pot. This can achieve preset quantitative control and meet the quantitative requirements of molten iron casting. By controlling the steering motor, the two outer shells can be switched and adjusted. When the molten iron feeding pot is controlled to feed and cast on one side of the outer shell, the molten iron feeding pot on the other side can receive the molten iron. The two operations are carried out simultaneously, which effectively increases the efficiency of molten iron casting.

[0017] (2) In this invention, after the molten iron feeding pot pours the molten iron into the metering main cylinder of the metering casting assembly in a metering manner, in order to ensure the control of the flow rate, flow volume and flow direction of the molten iron casting, a casting cylinder is set below the metering auxiliary cylinder, perpendicular to the casting port of the casting mold. Then, a cylinder suspension is set on one side of the metering auxiliary cylinder and a casting cylinder is set above it. The extended end of the casting cylinder is fixedly connected to the casting partition. By controlling the movement of the casting partition through the casting cylinder, the outflow of molten iron in the metering auxiliary cylinder can be controlled and casting can be performed. At the same time, since the feeding assembly is in the casting process, The amount of molten iron poured is controlled by the extension and retraction of the lifting cylinder. However, during the quantitative pouring process, prolonged operation may lead to a decrease in accuracy. Therefore, two additional measuring cylinders are installed on both sides of the quantitative main cylinder and connected to the main cylinder tube through the additional discharge port. The height of these cylinders is the same as that of the quantitative separator plate inside the main cylinder. When a large amount of molten iron falls from the feeding assembly, the excess molten iron can flow into the additional measuring cylinder through the additional discharge port, preventing overflow due to excessive molten iron content. This further avoids damage to external equipment caused by excessive molten iron overflow.

[0018] (3) In this invention, a number of guide blocks are set at equal intervals on the outside of the independent reciprocating conveyor chain. At the same time, a number of free rollers are set at equal intervals on the guide suspension. When the casting mold is conveyed on the mold conveyor frame, it moves forward by being engaged between the guide blocks on the independent reciprocating conveyor chain on both sides by the guide rods set on both sides. The guide rods can be bolt connecting blocks on both sides of the mold for sealing and fixing, which ensures the stability of the forward movement and the accuracy of the positioning, and avoids the situation where the casting port and the casting cylinder deviate during the alignment process. Attached Figure Description

[0019] The invention will now be further described with reference to the accompanying drawings.

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a top view schematic diagram of the connection structure of the quantitative casting component in this invention;

[0022] Figure 3 This is a side view of the connection structure of the quantitative casting component in this invention;

[0023] Figure 4 This is a schematic diagram of the connection structure between the lifting cylinder and the outer shell in this invention;

[0024] Figure 5 yes Figure 1 A magnified structural diagram of region A in the middle.

[0025] In the diagram: 1. Mold conveyor frame; 2. Independent reciprocating conveyor chain; 20. Guide block; 21. Guide suspension; 22. Free roller; 3. Connecting conveyor line; 4. Casting support; 5. Unloading assembly; 50. Steering motor; 51. Unloading base; 52. Unloading support plate; 520. Lifting limit; 521. Steering support leg; 522. Steering limit block; 523. Lifting cylinder; 53. Outer shell; 531. Unloading hinge block; 54. Molten iron unloading pot; 540. Unloading nozzle; 6. Quantitative casting assembly; 61. Quantitative main cylinder; 611. Quantitative separator plate; 62. Quantitative auxiliary cylinder; 621. Casting cylinder; 63. Residual material cylinder; 630. Residual material discharge port; 64. Casting cylinder; 641. Cylinder suspension; 65. Casting partition plate; 7. Casting mold; 70. Casting port; 71. Guide rod. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Please see Figure 1 - Figure 5 As shown, the present invention is a quantitative feeding device for casting in an iron holding furnace, comprising a mold conveying frame 1, a casting support 4 perpendicular to the mold conveying frame 1, and a docking conveyor line 3 at the end of the casting support 4. A guide suspension 21 is provided in the middle of the mold conveying frame 1. Simultaneously, independent reciprocating conveyor chains 2 are symmetrically arranged on both sides of the mold conveying frame 1 for conveying casting molds 7. A quantitative casting component 6 is provided at the end of the casting support 4 and directly above the mold conveying frame 1. A feeding component 5 is provided on the casting support 4 and on one side of the mold conveying frame 1 to quantitatively cast each casting mold 7, preventing excessive molten iron from overflowing during the casting process.

[0028] Specifically, refer to Figure 1 and Figure 4As shown, the feeding assembly 5 includes a feeding base 51 fixedly mounted on the casting support 4. A feeding support plate 52 is rotatably mounted above the feeding base 51. An outer shell 53 is symmetrically mounted on the feeding support plate 52. At the same time, an iron molten material feeding pot 54 is mounted inside the outer shell 53. A feeding nozzle 540 is mounted at one end of the iron molten material feeding pot 54. During installation and use, one end of the feeding assembly 5 is connected to the docking conveyor line 3 for conveying molten iron. The device for conveying or transferring molten iron delivers the molten iron to the iron molten material feeding pot 54. Alternatively, the iron molten material feeding pot 54 of the quantitative casting assembly 6 can be lifted by a hoisting device and moved to the side of the iron furnace for receiving the material. Then, it is placed in the outer shell 53. By lifting one end of the outer shell 53, the molten iron can be poured into the quantitative casting assembly 6.

[0029] Secondly, the outer shell 53 is rotatably mounted on the feeding support plate 52 via the feeding hinge blocks 531 on both sides. The feeding support plate 52 is symmetrically provided with lifting limiters 520, and the feeding base 51 is symmetrically rotatably provided with lifting cylinders 523. The extended end of the lifting cylinder 523 passes through the lifting limiters 520 and is rotatably connected to the outer shell 53. By controlling the extension and retraction of the lifting cylinder 523, the tilt of the outer shell 53 can be controlled, thereby controlling the amount of molten iron poured into the quantitative casting assembly 6 by the molten iron feeding pot 54. This can achieve preset quantitative control and meet the quantitative requirements of molten iron casting.

[0030] In addition, a steering motor 50 is fixedly installed on the feeding base 51 and its output end is fixedly connected to the feeding support plate 52. A steering support leg 521 is provided below the feeding support plate 52 and is rotatably connected to the feeding base 51 through the steering limit block 522 below. Under the control of the steering motor 50, the two outer shells 53 can be switched and adjusted. When the outer shell 53 on one side controls the molten iron feeding pot 54 to feed and cast, the molten iron feeding pot 54 on the other side can receive the molten iron. The two operations are carried out at the same time, which effectively increases the efficiency of the molten iron casting operation.

[0031] Reference Figure 2 and Figure 3 As shown, the quantitative casting assembly 6 includes a quantitative main cylinder 61 fixedly mounted on the casting support 4, quantitative secondary cylinders 62 symmetrically arranged below the quantitative main cylinder 61, a quantitative partition plate 611 arranged inside the quantitative main cylinder 61 between the two quantitative secondary cylinders 62, a casting cylinder 621 arranged below the quantitative secondary cylinders 62, and a casting partition plate 65 slidably arranged between the quantitative secondary cylinders 62 and the casting cylinder 621.

[0032] Meanwhile, symmetrically arranged on both sides of the main metering cylinder 61 are supplementary cylinders 63, which are connected to the main metering cylinder 61 through a supplementary discharge port 630. The height of the supplementary discharge port 630 is the same as the height of the metering partition plate 611. After the molten iron pouring pot 54 pours the molten iron into the main metering cylinder 61 in the metering casting assembly 6, in order to ensure the control of the flow rate, flow rate and flow direction of the molten iron casting, a casting cylinder 621 perpendicular to the casting port 70 of the casting mold 7 is set below the secondary metering cylinder 62. Then, a cylinder suspension 641 is set on one side of the secondary metering cylinder 62, and a casting cylinder 64 is set above it. The extended end of the casting cylinder 64 is fixedly connected to the casting partition plate 65. By controlling the movement of the casting partition plate 65 through the casting cylinder 64, the flow rate of the molten iron casting can be controlled. Molten iron flows out of the auxiliary measuring cylinder 62 and is poured. Meanwhile, since the amount of molten iron poured by the feeding component 5 is controlled by the extension and retraction of the lifting cylinder 523 during the pouring process, the accuracy may decrease during long-term operation of quantitative pouring. Therefore, two additional measuring cylinders 63 are set on both sides of the quantitative main cylinder 61 and connected to the tube body of the quantitative main cylinder 61 through the additional discharge port 630. The height is the same as the height of the quantitative partition plate 611 inside the quantitative main cylinder 61. When more molten iron falls from the feeding component 5, the excess molten iron can flow into the additional measuring cylinder 63 through the additional discharge port 630, avoiding the overflow caused by excessive molten iron content, and further avoiding the problem of damage to external equipment caused by excessive molten iron overflow.

[0033] In addition, several guide blocks 20 are evenly spaced on the outer side of the independent reciprocating conveyor chain 2, and several free rollers 22 are evenly spaced on the guide suspension 21. When the casting mold 7 is conveyed on the mold conveyor frame 1, it moves forward by being engaged between the guide blocks 20 on the independent reciprocating conveyor chain 2 on both sides by the guide rods 71 ​​set on both sides. The guide rods 71 ​​can be bolt connecting blocks on both sides of the mold for sealing and fixing, which ensures the stability of the forward movement and the accuracy of the positioning, and avoids the deviation between the casting port 70 and the casting cylinder 621 during the alignment process.

[0034] Working principle of the invention:

[0035] During operation, the casting mold 7, after the upper and lower molds are fixed, is placed on the mold conveyor frame 1 in sequence. It is then advanced by being engaged between the guide blocks 20 on the independent reciprocating conveyor chains 2 on both sides by the guide rods 71 ​​set on both sides. Then, one end of the unloading component 5 is connected to the docking conveyor line 3 used for conveying molten iron. The device for conveying or transferring molten iron delivers the molten iron to the molten iron unloading pot 54. Alternatively, the molten iron unloading pot 54 of the original quantitative casting component 6 is lifted by the hoisting device and moved to the side of the molten iron furnace for receiving the material. Then, it is placed in the outer shell 53. By lifting one end of the outer shell 53, the molten iron can be poured into the quantitative main cylinder 61. When there is a lot of molten iron falling from the unloading component 5, the excess molten iron can flow into the residual discharge port 630 into the residual cylinder 63. After the molten iron unloading is completed, the casting cylinder 64 controls the movement of the casting partition 65, which controls the outflow of molten iron in the quantitative auxiliary cylinder 62 and performs casting.

[0036] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. A quantitative feeding device for casting with a molten iron holding furnace, comprising a mold conveying frame (1) and a casting support (4) arranged perpendicularly to the mold conveying frame (1) and a butt joint conveying line (3) arranged at the end of the casting support (4), characterized in that, The middle part of the mold conveying frame (1) is provided with a material guiding suspension (21), the two sides of the mold conveying frame (1) are symmetrically provided with independent reciprocating conveying chains (2) for conveying casting molds (7), the end part of the casting support (4) and above the mold conveying frame (1) is provided with a quantitative casting assembly (6), and the casting support (4) and on one side of the mold conveying frame (1) are provided with a discharging assembly (5). The quantitative casting assembly (6) comprises a quantitative main cylinder (61) fixedly arranged on the casting support (4), the lower part of the quantitative main cylinder (61) is symmetrically provided with quantitative auxiliary cylinders (62), the inside of the quantitative main cylinder (61) is provided with a quantitative partition plate (611) between the two quantitative auxiliary cylinders (62), the lower part of the quantitative auxiliary cylinder (62) is provided with a casting cylinder (621), and the quantitative auxiliary cylinder (62) and the casting cylinder (621) are slidably provided with a casting partition plate (65) therebetween. The two sides of the quantitative main cylinder (61) are symmetrically provided with excess cylinders (63), and the upper part of the excess cylinders (63) is connected with the quantitative main cylinder (61) through excess material discharge ports (630), and the height of the excess material discharge port (630) is the same as the height of the quantitative partition plate (611). One side of the quantitative auxiliary cylinder (62) is provided with a cylinder suspension (641), and the upper part is provided with a casting cylinder (64), and the extending end of the casting cylinder (64) is fixedly connected with the casting partition plate (65).

2. The apparatus according to claim 1, wherein The discharging assembly (5) comprises a discharging base (51) fixedly arranged on the casting support (4), the upper part of the discharging base (51) is rotatably provided with a discharging support plate (52), the discharging support plate (52) is symmetrically rotatably provided with an outer material shell (53), the inside of the outer material shell (53) is provided with a molten iron discharging pot (54), and one end of the molten iron discharging pot (54) is provided with a discharging nozzle (540).

3. The apparatus according to claim 2, wherein The outer material shell (53) is rotatably arranged on the discharging support plate (52) through the discharging hinge blocks (531) on the two sides, the discharging support plate (52) is symmetrically provided with a jacking limiting part (520), the discharging base (51) is rotatably provided with a jacking cylinder (523) on the symmetrically, the extending end of the jacking cylinder (523) penetrates through the jacking limiting part (520) and is rotatably connected with the outer material shell (53).

4. The apparatus according to claim 2, wherein The discharging base (51) is fixedly provided with a steering motor (50) and the output end is fixedly connected with the discharging support plate (52), the lower part of the discharging support plate (52) is provided with a steering support leg (521) and is rotatably connected with the discharging base (51) through the lower steering limiting block (522).

5. The apparatus according to claim 1, wherein The outer side of the independent reciprocating conveying chain (2) is provided with a plurality of material guiding blocks (20) at equal intervals.

6. The apparatus according to claim 1, wherein The material guiding suspension (21) is provided with a plurality of free rollers (22) at equal intervals.

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