Lifting type heat preservation furnace with temporary storage function

Abstract

The utility model relates to a lifting type holding furnace with a buffering function, which comprises a conveying trough connected with a smelting furnace, the tail end of the conveying trough is arranged on a box-shaped holding furnace, a left interlayer plate and a right interlayer plate are respectively fixed on the outer furnace walls of the left side and the right side of the holding furnace, a left interlayer is formed between the left interlayer plate and the outer furnace wall of the holding furnace, and a right interlayer is formed between the right interlayer plate and the outer furnace wall of the holding furnace. A right interlayer is formed between the right interlayer plate and the outer furnace wall of the holding furnace; a vertical discharging valve plate is inserted into the left interlayer, and a feeding valve plate is inserted into the right interlayer; the lower end of the discharging valve plate and the lower end of the feeding valve plate extend out of the lower bottom face of the heat preservation furnace and are fixedly connected to a horizontal supporting beam frame, a plurality of vertical lifting oil cylinders are fixedly connected to the supporting beam frame, piston rods of the lifting oil cylinders are fixedly connected with a bearing beam frame, and the bearing beam frame is fixedly connected to the lower bottom face of the heat preservation furnace. The heat preservation furnace is designed to be of a lifting movable structure, the heat preservation furnace can normally supply molten aluminum when ascending, and the heat preservation furnace can be expanded to buffer the molten aluminum when descending.

Description

Technical fields:

[0001] This utility model relates to the technical field of molten metal conveying components for casting and rolling mills, and more specifically to a lifting and holding furnace with a buffer function. Background technology:

[0002] Metal-metal composite materials are a new type of material formed by the inter-atomic diffusion between two or more metals at the metal interface. Due to the advanced technology and the technical characteristics of the material itself, metal composite plates have advantages that single metal materials cannot match. Copper-aluminum composite strip is a new type of composite material that has been developed in recent years. It has the characteristics of corrosion resistance, high strength, good heat dissipation performance and low production cost. Currently, copper-aluminum composite strips are mainly manufactured using continuous casting and rolling mills. In this process, the aluminum substrate is molten from aluminum in a smelting furnace. The molten aluminum is then fed into a holding furnace via a conveyor trough. The solution in the holding furnace enters a feed nozzle, which supplies material to the rolls and is then rolled together with the copper strip to form a copper-aluminum composite strip. The existing holding furnace has a rectangular furnace body with a feed inlet on the upper middle part of one side and a discharge outlet at the bottom of the other side. The feed inlet is connected to the conveyor trough, and the discharge outlet is located below it, connecting to the feed nozzle. Because the height of the feed nozzle and the smelting furnace is fixed, and the position of the conveyor trough is relatively fixed based on the position of the smelting furnace outlet, the height difference between the feed inlet and the discharge outlet of the holding furnace is predetermined.

[0003] Currently, when replacing copper strips or encountering other malfunctions, the holding furnace needs to stop feeding material to the nozzle by blocking the outlet; however, the conveyor chute continues to feed molten aluminum into the holding furnace. The molten aluminum is stored inside the holding furnace, but the existing holding furnace is relatively small and needs to be expanded. Expansion can be achieved through vertical or horizontal expansion, but because the height difference between the inlet and outlet of the holding furnace is fixed, vertical expansion is not possible, and only horizontal expansion is possible. However, expanding the horizontal area would affect the operating space of other parts of the casting and rolling mill (such as making nozzle replacement inconvenient), and the insulation effect would be weakened by increasing the horizontal area. Therefore, a structure needs to be designed that can effectively expand the holding furnace without affecting other operating spaces. Utility model content:

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by providing a lifting and lowering holding furnace with a buffer function. The holding furnace is designed with a lifting and lowering movable structure. When the holding furnace rises, it can supply aluminum liquid normally, and when the holding furnace falls, it can expand its capacity to buffer aluminum liquid.

[0005] A lifting-type heat preservation furnace with buffer function includes a conveying trough connected to a smelting furnace. The end of the conveying trough is set on a box-shaped heat preservation furnace. A left partition plate and a right partition plate are fixed on the outer furnace walls on the left and right sides of the heat preservation furnace, respectively. A left partition is formed between the left partition plate and the outer furnace wall of the heat preservation furnace, and a right partition is formed between the right partition plate and the outer furnace wall of the heat preservation furnace.

[0006] A vertical discharge valve plate is inserted into the left partition, and a discharge interface is formed on the upper part of the discharge valve plate. A discharge port is formed at the bottom of the left side wall of the heat preservation furnace, which is directly opposite to the discharge interface. A vertical left guide groove is formed on the left partition plate, and the discharge interface is inserted into the left guide groove of the left partition plate.

[0007] The lower and upper parts of the right side wall of the heat preservation furnace are formed with a lower feed port and an upper feed port. A vertical right guide groove is formed on the right partition plate and is opposite to the lower feed port. A conveying trough is inserted in the right guide groove and the end of the conveying trough is directly opposite the lower feed port. A vertical feed valve plate is fixed to the lower end face of the conveying trough and is inserted in the right partition.

[0008] The lower ends of the discharge valve plate and the feed valve plate extend out of the bottom surface of the heat preservation furnace and are fixed to the horizontal support beam. Several vertical lifting cylinders are fixed to the support beam. The piston rod of the lifting cylinder is fixed to the bearing beam, which is fixed to the bottom surface of the heat preservation furnace.

[0009] Preferably, the thickness of the left partition of the heat preservation furnace is equal to the thickness of the discharge valve plate, and the thickness of the right partition is equal to the thickness of the feed valve plate.

[0010] Preferably, the top of the heat preservation furnace is fixedly connected to a heat preservation furnace cover, and the upper ends of the left partition plate and the right partition plate are respectively fixedly connected to the heat preservation furnace cover.

[0011] Preferably, the load-bearing beam includes an outer beam plate with a longitudinal section in the shape of a channel steel. The upper end face of the outer beam plate is fixed to the lower bottom surface of the heat preservation furnace. A horizontal inner beam plate is inserted into the outer beam plate. Several vertical discharge cylinders are fixed to the lower end face of the inner beam plate. The piston rod of the discharge cylinder passes through the inner beam plate and is fixed to the outer beam plate. The piston rod of the lifting cylinder is fixed to the inner beam plate.

[0012] Preferably, the width of the discharge port on the heat preservation furnace is greater than the width of the discharge interface on the discharge valve plate, the width of the discharge port is greater than the stroke of the discharge cylinder, and the width of the discharge cylinder is greater than the width of the lower feed port of the heat preservation furnace.

[0013] Preferably, a number of heating rods are inserted into the bottom of the heat preservation furnace, and a sandwich layer is provided in the front and rear side walls of the heat preservation furnace, with carbon fiber heating wires laid in the sandwich layer.

[0014] A bracket is fixedly connected to the conveying trough on the right side of the heat preservation furnace. The bracket includes a support column fixedly connected to the conveying trough, a support rod fixedly connected to the lower end of the support column, one end of the support rod fixedly connected to the cylinder body of the lifting cylinder, and an oblique support fixedly connected to the support rod. The lower end of the oblique support is fixedly connected to the cylinder body of the lifting cylinder.

[0015] Preferably, the support beam includes several crossbeams, a discharge valve plate and a feed valve plate are respectively fixed to the crossbeams, several longitudinal beams are fixed to the upper end face of the crossbeams, and the cylinder body of the lifting cylinder is fixed to the longitudinal beams; a reinforcing plate is sleeved and fixed to the lifting cylinder, and the reinforcing plate is fixed to the lower end face of the crossbeams.

[0016] The beneficial effects of this utility model are as follows:

[0017] This holding furnace is designed with a lifting and movable structure. When the holding furnace rises, it can supply aluminum liquid normally, and when the holding furnace falls, it can expand its capacity to buffer the aluminum liquid. Attached image description:

[0018] Figure 1 This is a cross-sectional structural diagram of the present invention in its conventional use state;

[0019] Figure 2 This is a cross-sectional structural diagram of the cache state of this utility model;

[0020] Figure 3 This is a cross-sectional view of the aluminum molten aluminum discharge mechanism of this invention.

[0021] In the diagram: 1. Insulation furnace; 11. Discharge port; 12. Lower feed port; 13. Upper feed port; 2. Conveying trough; 3. Left partition plate; 31. Left guide trough; 4. Right partition plate; 41. Right guide trough; 5. Discharge valve plate; 51. Discharge interface; 6. Feed valve plate; 7. Support beam frame; 71. Crossbeam plate; 72. Longitudinal beam plate; 73. Reinforcing plate; 8. Lifting cylinder; 9. Bearing beam frame; 91. Outer beam plate; 92. Inner beam plate; 93. Discharge cylinder; 10. Insulation furnace cover; 20. Bracket; 30. Heating rod; 40. Interlayer. Detailed implementation method:

[0022] Example: See Figure 1 , 3 As shown, a lifting-type heat preservation furnace with buffer function includes a conveying trough 2 connected to a smelting furnace. The end of the conveying trough 2 is set on a box-shaped heat preservation furnace 1. A left partition plate 3 and a right partition plate 4 are respectively fixed on the outer furnace walls on the left and right sides of the heat preservation furnace 1. A left partition a is formed between the left partition plate 3 and the outer furnace wall of the heat preservation furnace 1, and a right partition b is formed between the right partition plate 4 and the outer furnace wall of the heat preservation furnace 1.

[0023] A vertical discharge valve plate 5 is inserted into the left partition a, and a discharge interface 51 is formed on the upper part of the discharge valve plate 5. A discharge port 11 is formed at the bottom of the left side wall of the heat preservation furnace 1, which is directly opposite to the discharge interface 51. A vertical left guide groove 31 is formed on the left partition plate 3, and the discharge interface 51 is inserted into the left guide groove 31 of the left partition plate 3.

[0024] The lower part of the right wall of the heat preservation furnace 1 is formed with a lower feed inlet 12 and the upper part is formed with an upper feed inlet 13. The right partition plate 4 is formed with a vertical right guide groove 41 opposite to the lower feed inlet 12. A conveying trough 2 is inserted in the right guide groove 41, and the end of the conveying trough 2 is directly opposite to the lower feed inlet 12. A vertical feed valve plate 6 is fixed to the lower end surface of the conveying trough 2 and is inserted in the right partition b.

[0025] The lower ends of the discharge valve plate 5 and the feed valve plate 6 extend out of the bottom surface of the heat preservation furnace 1 and are fixed to the horizontal support beam 7. Several vertical lifting cylinders 8 are fixed to the support beam 7. A bearing beam 9 is fixed to the piston rod of the lifting cylinder 8 and is fixed to the bottom surface of the heat preservation furnace 1.

[0026] The thickness of the left partition a on the heat preservation furnace 1 is equal to the thickness of the discharge valve plate 5, and the thickness of the right partition b is equal to the thickness of the feed valve plate 6.

[0027] The top of the heat preservation furnace 1 is fixedly connected to the heat preservation furnace cover 10, and the upper ends of the left partition plate 3 and the right partition plate 4 are respectively fixedly connected to the heat preservation furnace cover 10.

[0028] The load-bearing beam frame 9 includes an outer beam plate 91 with a longitudinal section in the shape of channel steel. The upper end face of the outer beam plate 91 is fixed to the lower bottom surface of the heat preservation furnace 1. A horizontal inner beam plate 92 is inserted into the outer beam plate 91. Several vertical discharge cylinders 93 are fixed to the lower end face of the inner beam plate 92. The piston rod of the discharge cylinder 93 passes through the inner beam plate 92 and is fixed to the outer beam plate 91. The piston rod of the lifting cylinder 8 is fixed to the inner beam plate 92.

[0029] The width of the groove of the discharge port 11 on the heat preservation furnace 1 is greater than the width of the groove of the discharge interface 51 on the discharge valve plate 5, the width of the groove of the discharge port 11 is greater than the stroke of the discharge cylinder 93, and the width of the discharge cylinder 93 is greater than the width of the groove of the lower feed port 12 of the heat preservation furnace 1.

[0030] The bottom of the heat preservation furnace 1 is provided with several heating rods 30, and the front and rear side walls of the heat preservation furnace 1 are provided with interlayers 40, and carbon fiber heating wires are laid in the interlayers 40.

[0031] A bracket 20 is fixedly connected to the conveying trough 2 on the right side of the heat preservation furnace 1. The bracket 20 includes a support column 202 fixedly connected to the conveying trough 2. A support rod 201 is fixedly connected to the lower end of the support column 202. One end of the support rod 201 is fixedly connected to the cylinder body of the lifting cylinder 8. An inclined support 203 is fixedly connected to the support rod 201. The lower end of the inclined support 203 is fixedly connected to the cylinder body of the lifting cylinder 8.

[0032] The supporting beam frame 7 includes several crossbeam plates 71, a discharge valve plate 5 and a feed valve plate 6 are respectively fixed on the crossbeam plates 71, several longitudinal beam plates 72 are fixed on the upper end surface of the crossbeam plates 71, and the cylinder body of the lifting cylinder 8 is fixed on the longitudinal beam plates 72; a reinforcing plate 73 is sleeved and fixed on the lifting cylinder 8, and the reinforcing plate 73 is fixed on the lower end surface of the crossbeam plates 71.

[0033] The heat preservation furnace 1 is equipped with multiple liquid level sensors arranged at different heights. The high-level liquid level sensors are located below the upper feed port 13 and above the lower feed port 13, while the low-level liquid level sensors are located below the lower feed port 13. The high-level liquid level sensors control the smelting furnace to stop discharging liquid, while the low-level liquid level sensors control the discharge cylinder 93 to reset and the smelting furnace to resume discharging liquid.

[0034] Working principle: This structure is a lifting-type heat preservation furnace with a buffer function. The structure of the lifting-type heat preservation furnace is as follows: Figure 1 As shown, molten aluminum flows from the conveying trough 2 into the holding furnace 1 through the lower feed port 12, and then is output through the discharge port 11 and the discharge interface 51.

[0035] When it is necessary to buffer molten aluminum, the lifting cylinder 8 is activated, lowering the holding furnace 1. The discharge valve plate 5 and feed valve plate 6 on both sides of the holding furnace 1 remain stationary. The downward movement of the holding furnace 1 is equivalent to the conveying trough 2 moving upwards within the holding furnace 1. The discharge port 11 and lower feed port 12 on the holding furnace 1 are blocked by the discharge valve plate 5 and feed valve plate 6, respectively. Simultaneously, the conveying trough 2 connects with the upper feed port 13, and the molten aluminum conveyed from the conveying trough 2 is stored inside the holding furnace 1. Figure 2 As shown,

[0036] When the subsequent casting and rolling station of the holding furnace 1 resumes operation, the aluminum liquid buffered in the holding furnace 1 needs to be transferred first. Therefore, the lifting cylinder 8 is activated to raise the holding furnace 1. However, to prevent the buffered aluminum liquid from flowing out of the lower feed port 12 on the holding furnace 1, the piston rod of the discharge cylinder 93 on its supporting beam 9 is in a retracted state. This ensures that the feed valve plate 6 still blocks the lower feed port 12, but the discharge port 11 is connected to the discharge interface 51 on the discharge valve plate 5, allowing the aluminum liquid to be discharged from the discharge interface 51. Figure 3 As shown;

[0037] When the liquid level in the heat preservation furnace 1 is lower than the lower feed port 13, the piston rod of its discharge cylinder 93 extends, causing the heat preservation furnace 1 to move upward again, thereby opening the lower feed port 12.

[0038] The embodiments described above are illustrative of the present invention and are not intended to limit the present invention. Any person skilled in the art can modify the embodiments without departing from the spirit and scope of the present invention; therefore, the scope of protection of the present invention should be as set forth in the claims.

Claims

1. A lifting-type holding furnace with buffer function, comprising a conveying trough (2) connected to a smelting furnace, the end of the conveying trough (2) being disposed on a box-shaped holding furnace (1), characterized in that: Left partition plate (3) and right partition plate (4) are fixed on the outer furnace walls on the left and right sides of the heat preservation furnace (1), respectively. A left partition (a) is formed between the left partition plate (3) and the outer furnace wall of the heat preservation furnace (1), and a right partition (b) is formed between the right partition plate (4) and the outer furnace wall of the heat preservation furnace (1). A vertical discharge valve plate (5) is inserted in the left partition (a), and a discharge port (51) is formed on the upper part of the discharge valve plate (5). A discharge port (11) is formed at the bottom of the left side wall of the heat preservation furnace (1) and is directly opposite to the discharge port (51). A vertical left guide groove (31) is formed on the left partition plate (3), and the discharge port (51) is inserted in the left guide groove (31) of the left partition plate (3). The right side wall of the heat preservation furnace (1) has a lower feed inlet (12) formed in the middle and lower part and an upper feed inlet (13) formed in the upper part. The right partition plate (4) has a vertical right guide groove (41) that is opposite to the lower feed inlet (12). A conveying trough (2) is inserted in the right guide groove (41). The end of the conveying trough (2) is directly opposite to the lower feed inlet (12). A vertical feed valve plate (6) is fixed to the lower end surface of the conveying trough (2). The feed valve plate (6) is inserted in the right partition (b). The lower ends of the discharge valve plate (5) and the feed valve plate (6) extend out of the bottom surface of the heat preservation furnace (1) and are fixed to the horizontal support beam (7). Several vertical lifting cylinders (8) are fixed to the support beam (7). A bearing beam (9) is fixed to the piston rod of the lifting cylinder (8). The bearing beam (9) is fixed to the bottom surface of the heat preservation furnace (1).

2. The lifting-type heat preservation furnace with buffer function according to claim 1, characterized in that: The thickness of the left partition (a) of the heat preservation furnace (1) is equal to the thickness of the discharge valve plate (5), and the thickness of the right partition (b) is equal to the thickness of the feed valve plate (6).

3. A lifting-type heat preservation furnace with buffer function according to claim 1, characterized in that: The top of the heat preservation furnace (1) is fixedly connected to the heat preservation furnace cover (10), and the upper ends of the left partition plate (3) and the right partition plate (4) are respectively fixedly connected to the heat preservation furnace cover (10).

4. A lifting-type heat preservation furnace with buffering function according to claim 1, characterized in that: The load-bearing beam frame (9) includes an outer beam plate (91) with a longitudinal section in the shape of channel steel. The upper end face of the outer beam plate (91) is fixed to the lower bottom surface of the heat preservation furnace (1). A horizontal inner beam plate (92) is inserted into the outer beam plate (91). Several vertical discharge cylinders (93) are fixed to the lower end face of the inner beam plate (92). The piston rod of the discharge cylinder (93) passes through the inner beam plate (92) and is fixed to the outer beam plate (91). The piston rod of the lifting cylinder (8) is fixed to the inner beam plate (92).

5. A lifting-type heat preservation furnace with buffering function according to claim 4, characterized in that: The width of the groove of the discharge port (11) on the heat preservation furnace (1) is greater than the width of the groove of the discharge interface (51) on the discharge valve plate (5), the width of the groove of the discharge port (11) is greater than the stroke of the discharge cylinder (93), and the width of the discharge cylinder (93) is greater than the width of the groove of the lower feed port (12) of the heat preservation furnace (1).

6. A lifting-type heat preservation furnace with buffering function according to claim 1, characterized in that: The bottom of the heat preservation furnace (1) is provided with several heating rods (30), and the front and rear side walls of the heat preservation furnace (1) are provided with interlayers (40), and carbon fiber heating wires are laid in the interlayers (40).

7. A lifting-type heat preservation furnace with buffer function according to claim 1, characterized in that: A bracket (20) is fixedly connected to the conveying trough (2) on the right side of the heat preservation furnace (1). The bracket (20) includes a support column (202) fixedly connected to the conveying trough (2). A support rod (201) is fixedly connected to the lower end of the support column (202). One end of the support rod (201) is fixedly connected to the cylinder body of the lifting cylinder (8). An inclined support (203) is fixedly connected to the support rod (201). The lower end of the inclined support (203) is fixedly connected to the cylinder body of the lifting cylinder (8).

8. A lifting-type heat preservation furnace with buffer function according to claim 1, characterized in that: The supporting beam frame (7) includes several crossbeam plates (71), a discharge valve plate (5) and a feed valve plate (6) are respectively fixed on the crossbeam plates (71), several longitudinal beam plates (72) are fixed on the upper end surface of the crossbeam plates (71), and the cylinder body of the lifting cylinder (8) is fixed on the longitudinal beam plates (72); a reinforcing plate (73) is sleeved and fixed on the lifting cylinder (8), and the reinforcing plate (73) is fixed on the lower end surface of the crossbeam plates (71).

Images