Metal melting furnace with residual material feeding device

Abstract

A metal melting furnace with a residual material feeding device comprises a furnace body, a filling device and a residual material feeding device. The furnace body comprises a furnace chamber, and the furnace chamber is formed with a second opening. The filling device is used to preheat a plurality of metal materials and transfer them to the furnace chamber. The residual material feeding device is used to preheat the residual material of the metal material and transfer it to the furnace chamber. The residual material feeding device comprises a second preheating chamber and a swing plate. The second preheating chamber has a bottom opening connected to the second opening, and the swing plate can be switched between a blocking state and a feeding state. In the blocking state, the swing plate covers the bottom opening. In the feeding state, the swing plate is away from the bottom opening, and the residual material of the metal material can be dropped into the furnace chamber from the second preheating chamber through the second opening. The residual material of the metal material is preheated by using the second preheating chamber of the residual material feeding device. In the feeding state, the residual material of the metal material can be dropped into the furnace chamber from the second preheating chamber through the second opening, thereby improving the utilization rate of the material and saving the material cost.

Description

Technical Field

[0001] The invention relates to a method for treating molten metal in a pouring ladle or a supply pouring trough before casting, and in particular to a metal melting furnace with a residual material feeding device. Background Art

[0002] Metal casting is the process of placing several metal ingots into a melting furnace and heating them to melt them into a liquid state. The molten metal is then poured into a mold using a spoon device. After the molten metal solidifies, the mold is disassembled to obtain the desired blank or casting.

[0003] However, in the process of melting into liquid metal, part of the metal ingot cannot be completely immersed in the melting furnace, and the burrs peeled off from the blank will become waste materials. These waste materials cannot be fed into the melting furnace in a normal way due to their irregular shapes, thus easily resulting in waste of material costs. Summary of the invention

[0004] The object of the present invention is to provide a metal melting furnace with a residual material feeding device which can save material costs.

[0005] The metal melting furnace with a residual material feeding device described in the present invention is suitable for heating and melting a plurality of metal materials into metal molten metal. The metal melting furnace with a residual material feeding device comprises a furnace body, a filling device and a residual material feeding device.

[0006] The furnace body includes a furnace chamber for heating and melting the metal material, the furnace chamber has a furnace opening located at the top side, the furnace opening is formed with a soup taking opening, a first opening and a second opening arranged at intervals, the soup taking opening is used to take out the metal soup. The filling device is arranged in the furnace body and is used to preheat the metal material and transfer it to the furnace chamber. The filling device has a first preheating chamber connected to the first opening and a filling unit, the first preheating chamber receives the hot air rising from the furnace chamber and is used to preheat the metal material, and the filling unit transfers the metal material from the first preheating chamber to the furnace chamber.

[0007] The residual material feeding device is arranged on the melting furnace body and is used to preheat the residual material of the metal material and transfer it to the furnace chamber. The residual material feeding device includes a second preheating seat. The second preheating seat has a second preheating chamber connected to the second opening and used to accommodate the residual material of the metal material, and a swing plate that can be opened and closed in the second preheating chamber. The second preheating chamber receives the hot air rising from the furnace chamber and is used to preheat the residual material of the metal material. The second preheating chamber has a bottom opening connected to the second opening, and the swing plate has at least one preheating opening. The swing plate can be switched between a blocking state and a feeding state. In the blocking state, the swing plate covers a part of the bottom opening, the residual material of the metal material is limited in the second preheating chamber, and the hot air rising from the furnace chamber enters the second preheating chamber through the second opening and the preheating opening. In the feeding state, the swing plate is away from the bottom opening, so that the residual material of the metal material can fall into the furnace chamber from the second preheating chamber through the second opening.

[0008] The metal melting furnace with a residual material feeding device described in the present invention, the second preheating seat also has a seat body and a cover body, the seat body forms the second preheating chamber, and the second preheating chamber also has an upper opening located on the top side, the cover body can be opened and closed on the seat body and is used to cover the upper opening, and the residual material feeding device also has a first driver for driving the cover body to open or close.

[0009] In the metal melting furnace with a residual material feeding device of the present invention, the first driver comprises a first cylinder body arranged on the base body, and a first telescopic rod telescopically arranged on the first cylinder body and connected to the cover body at one end.

[0010] The metal melting furnace with a residual material feeding device described in the present invention, the second preheating chamber also has a side opening located on the side, when the swing plate is in the blocking state, the swing plate also covers the side opening, when the swing plate is in the feeding state, the swing plate does not cover the side opening, and the residual material feeding device also has a second driver for driving the swing plate.

[0011] The metal melting furnace with a residual material feeding device described in the present invention, the residual material feeding device also includes a recovery container and a lifting and flipping unit, the recovery container is located outside the second preheating seat and is used to centrally place the residual materials of the metal material, the lifting and flipping unit is used to move the recovery container to a position adjacent to the second preheating seat, and pour the residual materials of the metal material in the recovery container into the second preheating chamber through the upper opening.

[0012] In the metal melting furnace with a residual material feeding device described in the present invention, the area of ​​the upper opening is larger than the area of ​​the bottom opening, and the second preheating seat also has an inclined plate, which is inclinedly arranged in the second preheating chamber from the upper opening toward the swing plate.

[0013] In the metal melting furnace with a residual material feeding device described in the present invention, the lifting and flipping unit has a lifting drive, and the lifting drive is used to drive the recovery container to move along the top and bottom directions.

[0014] The metal melting furnace with a residual material feeding device described in the present invention, the lifting and flipping unit also has a flipping driver that moves up and down with the lifting driver, the flipping driver has a rotating shaft connected to the recovery container, the rotating shaft can rotate around the axis and is used to drive the recovery container to rotate around the axis.

[0015] In the metal melting furnace with the residual material feeding device of the present invention, the swing plate has a plurality of preheating openings, and one end of each preheating opening is opened at the side.

[0016] The metal melting furnace with a residual material feeding device described in the present invention, the second preheating seat also has a slag plate arranged on the swing plate and used to extend into the metal soup liquid, when the swing plate moves from the material blocking state to the material feeding state, the slag plate moves with the swing plate in the direction away from the bottom opening, when the swing plate moves from the material feeding state to the material blocking state, the slag plate moves with the swing plate and approaches the bottom opening.

[0017] The beneficial effect of the present invention is that the second preheating chamber of the residual material feeding device can be used to preheat the residual material of the metal material. After preheating, the swing plate can be moved to the feeding state, and the residual material of the metal material can be introduced from the second preheating chamber through the second opening into the furnace chamber to be melted into metal soup, thereby improving the utilization rate of the material and saving the material cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Other features and effects of the present invention will be clearly presented in the embodiments with reference to the accompanying drawings, in which:

[0019] Figure 1 is a side view schematic diagram of an embodiment of a metal melting furnace with a residual material feeding device of the present invention;

[0020] Figure 2 is a schematic top view of the embodiment;

[0021] Figure 3 is an incomplete stereogram of the embodiment;

[0022] Figure 4 is a three-dimensional diagram of a lifting and flipping unit and a recovery container of the embodiment;

[0023] Figure 5 yes Figure 4 Front view of

[0024] Figure 6 is an incomplete partial cross-sectional view, illustrating that a second preheating seat of the embodiment is disposed above a furnace chamber, and a swing plate of the second preheating seat is in a material blocking state;

[0025] Figure 7 is a three-dimensional diagram of the second preheating seat, illustrating that a cover of the second preheating seat is opened;

[0026] Figure 8 is similar to Figure 7 , indicating that the swing plate is in a feeding state;

[0027] Fig. 9 is a side view schematic diagram, illustrating that the cover is opened and the swing plate is in the feeding state;

[0028] Fig.10 is an incomplete side view, illustrating that the lifting and flipping unit drives the recovery container to rise;

[0029] Fig.11 is similar to Fig.10 , indicating that the lifting and flipping unit drives the recovery container to flip toward the second preheating seat; and

[0030] Fig.12 It is a cross-sectional schematic diagram, which illustrates that when the swing plate moves from the feeding state to the blocking state, a slag stripper plate of the second preheating seat moves along with the swing plate. DETAILED DESCRIPTION

[0031] See also Figures 1 to 3 An embodiment of the metal melting furnace with a residual material feeding device of the present invention is suitable for heating and melting a plurality of metal materials 9 into a metal soup. The metal materials 9 of this embodiment are long aluminum strips for illustration. In other embodiments, each of the metal materials 9 can also be a granular or block-shaped metal material. The shape and / or size of the metal materials 9 are not limiting conditions of the present invention. The metal melting furnace with a residual material feeding device comprises a furnace body 1, a filler device 2 and a residual material feeding device 300.

[0032] The furnace body 1 includes a furnace chamber 11 for heating and melting the metal material 9. The furnace chamber 11 has a furnace opening 12 located on the top side. The furnace opening 12 is formed with a soup taking opening 121, a first opening 122 and a second opening 123 arranged at intervals. The soup taking opening 121 is used to take out the metal soup.

[0033] The filling device 2 is disposed on the furnace body 1 and is used to preheat the metal material 9 and transfer it to the furnace chamber 11. The filling device 2 has a first preheating seat 21 connected to the first opening 122, a loading unit 22 and a filling unit 23. The first preheating seat 21 is disposed above the furnace chamber 11 along a top-bottom direction Z. The first preheating seat 21 forms a first preheating chamber 211 for receiving hot air rising from the furnace chamber 11 and preheating the metal material 9. The loading unit 22 has a loading platform 221 for placing the metal material 9 and can be raised and lowered along the top-bottom direction Z, and a pushing seat 222 for driving the loading platform 221 to move horizontally. The filling unit 23 has a pushing block group 231 aligned with the first preheating chamber 211 and can move horizontally. The pushing block group 231 can push the metal material 9 to move horizontally in the first preheating chamber 211. During the melting operation, the material carrier 221 is raised from a low position to the same height as the first preheating chamber 211, and the pushing seat 222 is used to pull the material carrier 221 to move and enter the first preheating chamber 211. Then, the filler unit 23 can push and transfer the metal materials 9 in the first preheating chamber 211 to the furnace chamber 11 in sequence, and then melt them into metal soup. After casting, the metal materials 9 that are not completely melted and the burrs peeled off from the blank are collected as the residual materials of the metal materials 9.

[0034] The residual material feeding device 300 is disposed at a distance from the filling device 2 on the furnace body 1, and the residual material feeding device 300 is used to preheat the residual material of the metal material 9 and transfer it to the furnace chamber 11. The residual material feeding device 300 includes a recovery container 4, a lifting and turning unit 5, a second preheating seat 6, a first driver 71 and a second driver 72.

[0035] See also Figures 3 to 5, the recovery container 4 is located outside the furnace body 1 and is used to centrally place the residual materials of the metal material 9. The recovery container 4 of this embodiment is a trolley with an open top side. The lifting and flipping unit 5 is used to move the recovery container 4 up and down and flip it. The lifting and flipping unit 5 has a lifting drive 51 and a flipping drive 52 that moves with the lifting drive 51. The lifting drive 51 is used to drive the recovery container 4 and the flipping drive 52 to move along the top-bottom direction Z. The lifting drive 51 is a cylinder, but in other embodiments, a motor and other transmission mechanisms such as a screw or a pulley that can reciprocate in a straight line can also be used. The flipping drive 52 is a motor assembly and has a rotating shaft 521 connected to the recovery container 4, and a body 522 for driving the rotating shaft 521 to rotate. The rotating shaft 521 can rotate around an axis L and is used to drive the recovery container 4 to rotate around the axis L, thereby allowing the recovery container 4 to be flipped.

[0036] See also Figures 6 to 8 The second preheating seat 6 is disposed above the furnace chamber 11 along the top-bottom direction Z. The second preheating seat 6 comprises a seat body 61, a cover body 62, a swing plate 63, an inclined plate 64 and a slag removal plate 65. The seat body 61 forms a second preheating chamber 611 connected to the second opening 123. The second preheating chamber 611 is used to accommodate the metal material 9 (see Figure 3 ) and receives the hot air rising from the furnace chamber 11, thereby preheating the residual material of the metal material 9.

[0037] The second preheating chamber 611 has an upper opening 601 located at the top side, a bottom opening 602 opposite to the upper opening 601 and connected to the second opening portion 123, and a side opening 603 located at the side and connected to the bottom opening 602. The area of ​​the upper opening 601 is larger than the area of ​​the bottom opening 602. The cover body 62 is pivotally mounted on the base body 61 in an openable and closable manner and is used to cover the upper opening 601. The swing plate 63 is pivotally mounted on the base body 61 in an openable and closable manner and covers the side opening 603 and a portion of the bottom opening 602. The inclined plate 64 is tiltedly mounted in the second preheating chamber 611 from the upper opening 601 toward the swing plate 63. The slag stripper plate 65 is mounted on the bottom side of the swing plate 63 and is used to extend into the metal soup. In one embodiment, the slag stripper plate 65 is made of a high-temperature resistant ceramic fiber material.

[0038] Specifically, the swing plate 63 has a plate wall portion 631 for shielding the side opening 603, and a grid plate portion 632 for shielding a portion of the bottom opening 602. The slag removal plate 65 is connected to the bottom side of the plate wall portion 631 and moves with the swing plate 63. The grid plate portion 632 extends from the plate wall portion 631 toward the inclined plate 64 and is used to temporarily limit the residual material of the metal material 9 in the second preheating chamber 611. The grid plate portion 632 has at least one preheating opening 633, such as Figure 7 As shown, the grid plate portion 632 of this embodiment has a plurality of parallel and spaced preheating openings 633, and the size of each preheating opening 633 is smaller than that of each metal material 9 (see Figure 3 ) of the residual material, one end of each of the preheating openings 633 is opened at the side. Thus, the hot air of the furnace chamber 11 can rise to the second preheating chamber 611 through the preheating openings 633.

[0039] See also Figure 6 , Figure 7 and Fig. 9 The swing plate 63 can be in a blocking state (such as Figure 6 ) and a feeding state (such as Fig. 9 ) when the material blocking state is in progress, the slag stripper plate 65 extends into the metal broth, and the wall portion 631 of the swing plate 63 shields the side opening 603 (see Figure 8 ) and the grid portion 632 covers a portion of the bottom opening 602, so that the residual metal material 9 can be confined in the second preheating chamber 611, and the hot air rising from the furnace chamber 11 passes through the second opening portion 123 through the preheating opening 633 and enters the second preheating chamber 611, thereby preheating the residual metal material 9.

[0040] See also Figure 8 and Fig. 9 In the feeding state, the grid portion 632 of the swing plate 63 and the slag stripper plate 65 are away from the bottom opening 602, and the plate wall portion 631 does not cover the side opening 603, so that the residual material of the metal material 9 can fall into the furnace chamber 11 from the second preheating chamber 611 through the second opening portion 123.

[0041] The first driver 71 is used to drive the cover body 62 to open or close. The first driver 71 has a first cylinder 711 disposed on the base body 61, and a first telescopic rod 712 telescopically disposed on the first cylinder 711 and connected to the cover body 62 at one end. The second driver 72 is used to drive the swing plate 63 to switch between the blocking state and the feeding state. The second driver 72 has a second cylinder 721 disposed on the base body 61, and a second telescopic rod 722 telescopically disposed on the second cylinder 721 and connected to the plate wall portion 631 of the swing plate 63 at one end.

[0042] See also Fig.10 During operation, the recovery container 4 is raised to a position adjacent to the second preheating seat 6 by utilizing the lifting driver 51 of the residual material feeding device 300, and then the first driver 71 is driven to drive the cover 62 to open.

[0043] See also Figure 7 and Fig.11 , driving the flip driver 52 to flip the recovery container 4 toward the second preheating seat 6, so that the metal material 9 (see Fig. 9 ) is poured into the second preheating chamber 611 through the upper opening 601. In this embodiment, the residual materials of the metal material 9 can be concentrated on the grid portion 632 of the swing plate 63 by utilizing the inclined design of the inclined plate 64.

[0044] See also Figure 8 and Fig. 9 , and then use the lifting and flipping unit 5 to drive the recovery container 4 to turn over and descend back to its original position. Finally, drive the second driver 72 to drive the swing plate 63 to move to the feeding state, so that the residual metal material 9 can fall from the second preheating chamber 611 into the furnace chamber 11, so that the residual metal material 9 can be melted into metal soup.

[0045] See also Figure 6 and Fig. 9 It should be particularly noted that when the swing plate 63 moves from the blocking state to the feeding state, the slag removing plate 65 moves along with the swing plate 63 in the direction away from the bottom opening 602 and removes the slag floating on the metal soup liquid, thereby ensuring that the metal soup liquid taken out from the soup taking opening 121 is relatively clean.

[0046] See also Figure 6 and Fig.12 After pouring the metal material 9 (see Fig.11) after the residual material of the metal material 9 is removed, when the swing plate 63 moves from the feeding state to the blocking state, the slag plate 65 will move with the swing plate 63 and approach the bottom opening 602, and the slag plate 65 will block the slag generated after the residual material of the metal material 9 is poured into the metal soup, so that the slag generated after the residual material of the metal material 9 is restricted to the second opening 123, and can avoid floating to the soup taking opening 121, so that the soup taking opening 121 remains clean.

[0047] In summary, the metal melting furnace with a residual material feeding device of the present invention uses the filling device 2 to feed the metal material 9 into the furnace chamber 11 to melt into metal soup, and takes out the metal soup from the soup taking opening 121 for use, and at the same time collects the residual materials of the metal material 9 of irregular shape, and then puts them into the recovery container 4 for concentration. Then, the residual materials of the metal material 9 are poured from the recovery container 4 into the second preheating chamber 611 for preheating by using the lifting and flipping unit 5. After preheating, the swing plate 63 can be driven to move to the feeding state, so that the residual materials of the metal material 9 can fall from the second preheating chamber 611 through the second opening 123 into the furnace chamber 11 and melt into metal soup, thereby improving the utilization rate of materials and saving material costs. In addition, the present embodiment also takes into account that more scum will be generated when the residual material of the metal material 9 is recovered and placed in the furnace chamber 11 for melting. Therefore, the scum plate 65 is used to remove the scum of the metal soup before taking the soup, ensuring that cleaner metal soup can be taken out for use, and after the residual material of the metal material 9 is poured into the metal soup, the scum generated is blocked in the second opening 123 by the scum plate 65, so that the soup taking opening 121 is kept clean and the quality of the metal soup is better, so the purpose of the present invention can be achieved.

[0048] The above are merely embodiments of the present invention and should not be used to limit the scope of the present invention. That is, any simple equivalent changes and modifications made according to the claims and description of the present invention still fall within the scope of the present invention.

Claims

1. A metal melting furnace with a residual material feeding device, suitable for heating and melting a plurality of metal materials into a metal molten metal, characterized in that: The metal melting furnace with a residual material feeding device comprises: The furnace body comprises a furnace chamber for heating and melting the metal material, the furnace chamber having a furnace opening located at the top side, the furnace opening being formed with a soup taking opening, a first opening and a second opening arranged at intervals, the soup taking opening being used to take out the metal soup; a filling device, disposed in the furnace body and used to preheat the metal material and transfer it to the furnace chamber, the filling device having a first preheating chamber connected to the first opening and a filling unit, the first preheating chamber receiving hot air rising from the furnace chamber and used to preheat the metal material, the filling unit transferring the metal material from the first preheating chamber to the furnace chamber; and The residual material feeding device is arranged on the furnace body and is used to preheat the residual material of the metal material and transfer it to the furnace chamber. The residual material feeding device includes a second preheating seat, the second preheating seat has a second preheating chamber connected to the second opening part and used to accommodate the residual material of the metal material, and a swing plate that can be opened and closed in the second preheating chamber, the second preheating chamber receives hot air rising from the furnace chamber and is used to preheat the residual material of the metal material, the second preheating chamber has a bottom opening connected to the second opening part, the swing plate has at least one preheating opening, the swing plate can be switched between a blocking state and a feeding state, in the blocking state, the swing plate covers a part of the bottom opening, the residual material of the metal material is confined in the second preheating chamber, and the hot air rising from the furnace chamber enters the second preheating chamber through the second opening part and the preheating opening, in the feeding state, the swing plate is away from the bottom opening, so that the residual material of the metal material can fall into the furnace chamber from the second preheating chamber through the second opening.

2. The metal melting furnace with a residual material feeding device according to claim 1, characterized in that: The second preheating seat also has a seat body and a cover body, the seat body forms the second preheating chamber, and the second preheating chamber also has an upper opening located on the top side, the cover body can be opened and closed on the seat body and is used to cover the upper opening, and the residual material feeding device also has a first driver for driving the cover body to open or close.

3. The metal melting furnace with a residual material feeding device according to claim 2, characterized in that: The first driver comprises a first cylinder body arranged on the seat body, and a first telescopic rod telescopically arranged on the first cylinder body and one end of which is connected to the cover body.

4. The metal melting furnace with a residual material feeding device according to claim 2, characterized in that: The second preheating chamber also has a side opening located on the side. When the swing plate is in the blocking state, the swing plate also covers the side opening. When the swing plate is in the feeding state, the swing plate does not cover the side opening. The residual material feeding device also has a second driver for driving the swing plate.

5. The metal melting furnace with a residual material feeding device according to claim 2, characterized in that: The residual material feeding device also includes a recovery container and a lifting and flipping unit. The recovery container is located outside the second preheating seat and is used to centrally place the residual materials of the metal material. The lifting and flipping unit is used to move the recovery container to a position adjacent to the second preheating seat and pour the residual materials of the metal material in the recovery container into the second preheating chamber through the upper opening.

6. The metal melting furnace with a residual material feeding device according to claim 5, characterized in that: The area of ​​the upper opening is larger than that of the bottom opening. The second preheating seat further comprises an inclined plate, which is arranged in the second preheating chamber in an inclined manner from the upper opening toward the swing plate.

7. The metal melting furnace with a residual material feeding device according to claim 5, characterized in that: The lifting and turning unit has a lifting drive, and the lifting drive is used to drive the recovery container to move along the top-bottom direction.

8. The metal melting furnace with a residual material feeding device according to claim 7, characterized in that: The lifting and flipping unit also has a flipping driver that moves up and down with the lifting driver. The flipping driver has a rotating shaft connected to the recovery container. The rotating shaft can rotate around an axis and is used to drive the recovery container to rotate around the axis.

9. The metal melting furnace with a residual material feeding device according to claim 1, characterized in that: The swing plate has a plurality of preheating openings, and one end of each preheating opening is opened at the side.

10. The metal melting furnace with a residual material feeding device according to claim 1, characterized in that: The second preheating seat also has a slag plate arranged on the swing plate and used for extending into the metal soup liquid. When the swing plate moves from the blocking state to the feeding state, the slag plate moves with the swing plate in a direction away from the bottom opening. When the swing plate moves from the feeding state to the blocking state, the slag plate moves with the swing plate and approaches the bottom opening.

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