Efficient smelting system for casting hot working

Abstract

An efficient smelting system for casting hot working relates to the technical field of casting hot working equipment and comprises supporting legs, a furnace body and a pressing device, the supporting legs are arranged on the furnace body, the pressing device is arranged in the furnace body, the pressing device is composed of a first pressing assembly and a second pressing assembly, and the first pressing assembly is arranged on the second pressing assembly. The first pressing assembly and the second pressing assembly are both connected with the furnace body, the first pressing assembly and the second pressing assembly alternately move up and down above solid furnace charge blocks in the furnace body, and the solid furnace charge blocks in the furnace body are pressed into metal liquid through cooperation of the first pressing assembly and the second pressing assembly to accelerate melting of the solid furnace charge blocks; the smelting furnace is reasonable and practical in structure and easy to operate, oxygen blowing can be conveniently carried out on unmelted metal raw materials in the smelting furnace, melting of solid metal raw materials is accelerated, the utilization rate of oxygen is increased, the working efficiency of the smelting furnace is improved, and energy consumption is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of casting hot processing equipment, and in particular to a high-efficiency smelting system for casting hot processing. Background Art

[0002] It is well known that when an electric arc furnace is used to refine metal raw materials, in order to accelerate the melting of the charge, the charge is operated with a large current. The large current operation will inevitably increase energy consumption. In order to reduce the energy consumption during the melting period, the charge is treated with oxygen blowing and the physical and chemical properties of the metal raw materials themselves are utilized to achieve the purpose of energy saving and consumption reduction. When the interface oxygen blowing method is used to assist in the refining of metal raw materials, the solid charge blocks in the electric arc furnace float on the surface of the molten metal. The solid charge blocks float on the surface of the molten metal and cannot be buried in the molten metal, resulting in low oxygen utilization rate of the interface oxygen blowing, which further causes low melting efficiency of the solid charge blocks. For this reason, we have proposed a high-efficiency melting system for hot processing of castings. Summary of the invention

[0003] In order to overcome the shortcomings of the background technology, the present invention discloses a high-efficiency smelting system for hot processing of castings. When in use, the metal raw material is smelted at high temperature through a furnace body, and the unmelted metal raw material is pressed into the molten metal through a pressing device. At the same time, oxygen is blown into the unmelted metal raw material to accelerate melting, and the molten metal in the arc furnace body is discharged through a slurry discharge device, so as to achieve the purpose of improving the working efficiency of the smelting furnace.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: A high-efficiency smelting system for hot processing of castings comprises legs, a furnace body and a pressing device, wherein the furnace body is provided with legs, the furnace body is provided with a pressing device, the pressing device is composed of a first pressing component and a second pressing component, the second pressing component is provided with a first pressing component, the first pressing component and the second pressing component are both connected to the furnace body, the first pressing component and the second pressing component move alternately up and down above a solid charge block in the furnace body, and the solid charge block in the furnace body is pressed into the metal liquid by the cooperation of the first pressing component and the second pressing component to accelerate the melting of the solid charge block.

[0005] The second pressing assembly is composed of a first fixed plate, a first limiting block and a displacement device. The first fixed plate on the displacement device is movably connected to the furnace body through the displacement device, and the first fixed plate is provided with a first limiting block.

[0006] A third fixing hole is provided on the upper surface of the first fixing disk near the center position, the third fixing hole passes through the first fixing disk, and the third fixing holes are arranged in order on the first fixing disk; a first limiting block is provided on the lower surface of the first fixing disk, the interior of the first fixing disk is a hollow structure, at least one first limiting block is provided, and the first limiting blocks are arranged in order on the first fixing disk; a fixing groove is provided on the lower surface of the first fixing disk between the first limiting blocks, and the fixing groove passes through the first fixing disk.

[0007] The lower surface of the first limit block is an arc-shaped inclined surface structure, and an oxygen outlet hole is provided on the lower surface of the first limit block. The oxygen outlet hole on the first limit block is connected with the inside of the first fixed plate.

[0008] The first pressing assembly is composed of a displacement device, a second fixed plate and a second limit block. The second fixed plate is fixed to the furnace body by the displacement device. The interior of the second fixed plate is a hollow structure. The interior of the second fixed plate is connected to the second fixing hole on the first fixed block through a fixing tube. A second limit block is provided on the lower surface of the second fixed plate. At least one second limit block is provided. The position of the second limit block on the second fixed plate corresponds to the position of the fixing groove on the first fixed plate. A fourth fixing hole is provided on the upper surface of the first fixed plate. The fourth fixing hole passes through the first fixed plate. The position of the fourth fixing hole on the first fixed plate corresponds to the position of the third fixing hole on the first fixed plate.

[0009] The lower surface of the second limit block is an arc-shaped inclined surface structure, and an oxygen outlet hole is arranged on the lower surface of the second limit block. The oxygen outlet hole on the second limit block is connected with the inside of the second fixed plate, and the length of the second limit block on the second fixed plate is longer than the length of the first limit block on the first fixed plate.

[0010] A furnace mouth is provided on the upper surface of the furnace body, and displacement devices are provided on the left and right sides of the outer wall of the furnace body near one end of the upper surface. A first fixing hole is provided on one end of the outer wall of the furnace body near the lower door. At least one first fixing hole is provided, and the first fixing holes are arranged in order on the furnace body. Support legs are provided in the first fixing holes on the furnace body, and a slurry discharge device is provided on the lower surface of the furnace body.

[0011] The displacement device is composed of a second fixed column, an electric telescopic rod, a first fixed block and a fixed tube. One end of the second fixed column is connected to the furnace body, and the other end of the second fixed column is provided with an electric telescopic rod. One end of the electric telescopic rod is vertically arranged with the second fixed column, and the other end of the electric telescopic rod is provided with a first fixed block. A second fixing hole is provided on the upper surface of the first fixed block, and a fixing tube is provided on the side wall of the first fixed block. The fixing tube is an "L"-shaped structure, and one end of the fixing tube is connected to the second fixing hole on the first fixed block, and the other end of the fixing tube is connected to the inside of the first fixed plate.

[0012] The slurry discharge device is composed of a discharge pipe and a slurry discharge valve. The discharge pipe is a funnel-shaped structure. One end of the discharge pipe is connected to the inside of the furnace body, and the other end of the discharge pipe is provided with a slurry discharge valve.

[0013] A fixed base is arranged on one end of the leg, a first fixing column is arranged on the other end of the leg, one end of the first fixing column is connected to the leg, and the other end of the first fixing column is fixed in a first fixing hole on the furnace body.

[0014] Due to the adoption of the above technical solution, the present invention has the following beneficial effects: The high-efficiency smelting system for hot processing of castings described in the present invention performs high-temperature smelting of metal raw materials through a furnace body when in use, presses the unmelted metal raw materials into the molten metal through a pressing device, and blows oxygen into the unmelted metal raw materials to accelerate melting, and discharges the molten metal in the arc furnace body through a slurry discharge device, thereby achieving the purpose of improving the working efficiency of the smelting furnace; the present invention has a reasonable and practical structure and is simple to operate. It is not only convenient to blow oxygen into the unmelted metal raw materials in the smelting furnace to accelerate the melting of solid metal raw materials, but also improves the utilization rate of oxygen, improves the working efficiency of the smelting furnace, and reduces energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the furnace structure of the present invention; Figure 3 It is a schematic diagram of the structure of the pressing device of the present invention; Figure 4 It is a schematic structural diagram of the second pressing assembly of the present invention; Figure 5 It is a schematic structural diagram of the first pressing assembly of the present invention; Figure 6 It is a schematic diagram of the structure of the pulp discharge device of the present invention; Figure 7 It is a schematic diagram of assembling the first limiting block and the second limiting block of the present invention; 1. Furnace body; 2. Pressing device; 3. Support legs; 4. Fixed base; 5. First fixed column; 6. Furnace mouth; 7. Discharging pipe; 8. First fixed hole; 9. Slurry discharge device; 10. First pressing assembly; 11. Second pressing assembly; 12. Displacement device; 13. Electric telescopic rod; 14. Second fixed column; 15. First fixed block; 16. Second fixed hole; 17. Fixed pipe; 18. Third fixed hole; 19. Fixed groove; 20. First fixed plate; 21. First limit block; 22. Second limit block; 23. Fourth fixed hole; 24. Second fixed plate; 25. Slurry discharge valve. DETAILED DESCRIPTION

[0016] The present invention can be explained in detail by the following examples, and the purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention.

[0017] Combined with Figures 1 to 7 A high-efficiency smelting system for hot processing of castings comprises a support leg 3, a furnace body 1 and a pressing device 2, wherein the furnace body 1 is provided with the support leg 3, the furnace body 1 is provided with the pressing device 2, the pressing device 2 is composed of a first pressing component 10 and a second pressing component 11, the second pressing component 11 is provided with the first pressing component 10, the first pressing component 10 and the second pressing component 11 are both connected to the furnace body 1, the first pressing component 10 and the second pressing component 11 move up and down alternately above a solid charge block in the furnace body 1, and the solid charge block in the furnace body 1 is pressed into the metal liquid by the cooperation of the first pressing component 10 and the second pressing component 11 to accelerate the melting of the solid charge block.

[0018] The second pressing assembly 11 is composed of a first fixed plate 20 , a first limiting block 21 and a displacement device 12 . The first fixed plate 20 on the displacement device 12 is movably connected to the furnace body 1 through the displacement device 12 , and the first fixed plate 20 is provided with a first limiting block 21 .

[0019] A third fixing hole 18 is provided on the upper surface of the first fixing disk 20 near the center position, and the third fixing hole 18 passes through the first fixing disk 20. The third fixing holes 18 are arranged in order on the first fixing disk 20. A first limiting block 21 is provided on the lower surface of the first fixing disk 20. The interior of the first fixing disk 20 is a hollow structure. At least one first limiting block 21 is provided, and the first limiting blocks 21 are arranged in order on the first fixing disk 20. A fixing groove 19 is provided on the lower surface of the first fixing disk 20 between the first limiting blocks 21 and the first limiting blocks 21, and the fixing groove 19 passes through the first fixing disk 20.

[0020] The lower surface of the first limiting block 21 is an arc-shaped inclined surface structure. An oxygen outlet hole is provided on the lower surface of the first limiting block 21 . The oxygen outlet hole on the first limiting block 21 is connected to the inside of the first fixed plate 20 .

[0021] The first pressing assembly 10 is composed of a displacement device 12, a second fixed plate 24 and a second limit block 22. The second fixed plate 24 is fixed on the furnace body 1 through the displacement device 12. The interior of the second fixed plate 24 is a hollow structure. The interior of the second fixed plate 24 is connected to the second fixing hole 16 on the first fixing block 15 through a fixing tube 17. A second limit block 22 is provided on the lower surface of the second fixed plate 24. At least one second limit block 22 is provided. The position of the second limit block 22 on the second fixed plate 24 corresponds to the position of the fixing groove 19 on the first fixed plate 20. A fourth fixing hole 23 is provided on the upper surface of the first fixed plate 20. The fourth fixing hole 23 passes through the first fixed plate 20. The position of the fourth fixing hole 23 on the first fixed plate 20 corresponds to the position of the third fixing hole 18 on the first fixed plate 20.

[0022] The lower surface of the second limit block 22 is an arc-shaped inclined surface structure, and an oxygen outlet hole is provided on the lower surface of the second limit block 22. The oxygen outlet hole on the second limit block 22 is connected to the inside of the second fixed plate 24. The length of the second limit block 22 on the second fixed plate 24 is longer than the length of the first limit block 21 on the first fixed plate 20.

[0023] A furnace mouth 6 is provided on the upper surface of the furnace body 1, and displacement devices 12 are provided on the left and right sides of the outer wall of the furnace body 1 near one end of the upper surface. A first fixing hole 8 is provided on the end of the outer wall of the furnace body 1 near the lower door. At least one first fixing hole 8 is provided, and the first fixing holes 8 are arranged in order on the furnace body 1. Support legs 3 are provided in the first fixing holes 8 on the furnace body 1, and a slurry discharge device 9 is provided on the lower surface of the furnace body 1.

[0024] The displacement device 12 is composed of a second fixed column 14, an electric telescopic rod 13, a first fixed block 15 and a fixed tube 17. One end of the second fixed column 14 is connected to the furnace body 1, and the other end of the second fixed column 14 is provided with an electric telescopic rod 13. One end of the electric telescopic rod 13 is vertically arranged with the second fixed column 14, and the other end of the electric telescopic rod 13 is provided with a first fixed block 15. A second fixing hole 16 is provided on the upper surface of the first fixed block 15, and a fixing tube 17 is provided on the side wall of the first fixed block 15. The fixing tube 17 is an "L"-shaped structure. One end of the fixing tube 17 is connected to the second fixing hole 16 on the first fixed block 15, and the other end of the fixing tube 17 is connected to the inside of the first fixed plate 20.

[0025] The slurry discharge device 9 is composed of a discharge pipe 7 and a slurry discharge valve 25 . The discharge pipe 7 is a funnel-shaped structure. One end of the discharge pipe 7 is connected to the inside of the furnace body 1 , and the other end of the discharge pipe 7 is provided with a slurry discharge valve 25 .

[0026] A fixing base 4 is provided on one end of the leg 3 , and a first fixing column 5 is provided on the other end of the leg 3 . One end of the first fixing column 5 is connected to the leg 3 , and the other end of the first fixing column 5 is fixed in a first fixing hole 8 on the furnace body 1 .

[0027] In the embodiment, the high-efficiency smelting system for hot processing of castings is used. When in use, the metal raw material to be melted is added into the furnace body 1 through the furnace mouth 6, and the oxygen tube is fixed in the second fixing hole 16 on the first fixing block 15. The oxygen tube is connected to the inside of the fixing tube 17. When the furnace body 1 melts to the bottom where the molten metal is gathered, oxygen is injected into the first fixing plate 20 through the oxygen tube and the fixing tube 17. The oxygen in the first fixing plate 20 is discharged through the oxygen outlet hole on the first limit block 21 and blown onto the solid charge block. The first fixing plate 20 is driven by the electric telescopic rod 13 to extend. The first fixed plate 20 moves, the first limiting block 21 moves to press the solid charge block into the molten metal, the oxygen outlet hole on the first limiting block 21 is inserted into the molten metal, and then the electric telescopic rod 13 drives the first limiting block 21 to move away from the molten metal. Similarly, the electric telescopic rod 13 extends to drive the second fixed plate 24 to move, and the second fixed plate 24 moves to drive the second limiting block 22 to move. The second limiting block 22 passes through the fixing groove 19 on the first fixed plate 20 and passes through between the adjacent first limiting blocks 21 on the first fixed plate 20. The second limiting block 22 is fixed again. The solid charge block is pressed into the molten metal. The lower surfaces of the first limit block 21 and the second limit block 22 are both arc-shaped structures. The first limit block 21 and the second limit block 22 make the solid charge roll when pressing the solid charge block, so that the solid charge block can better contact with oxygen, and also play the role of stirring the molten metal. Oxygen is injected into the molten metal to accelerate the reaction of oxygen elements in the oxygen with carbon elements in the molten metal. The first limit block 21 and the second limit block 22 move up and down alternately above the solid charge block in the furnace body 1. The solid charge blocks in the furnace body 1 are pressed into the metal liquid to accelerate the melting of the solid charge blocks. The fourth fixing hole 23 on the first fixing plate 20 and the third fixing hole 18 on the second fixing plate 24 facilitate the insertion of the electrode rod. After the charge blocks are completely melted, the slurry discharge valve 25 is opened, and the metal liquid in the furnace body 1 is discharged through the discharge pipe. The present invention has a reasonable and practical structure and is easy to operate. It is not only convenient to blow oxygen into the unmelted metal raw materials in the smelting furnace to accelerate the melting of the solid metal raw materials, but also improves the utilization rate of oxygen, improves the working efficiency of the smelting furnace, and reduces energy consumption.

[0028] The parts of the present invention that are not described in detail are prior art. Although the present invention is specifically demonstrated and introduced in conjunction with the preferred implementation scheme, there are many methods and approaches to specifically implement the technical solution. The above is only a preferred implementation scheme of the present invention, but technical personnel in the relevant field should understand that various changes can be made to the present invention in form and details without departing from the spirit and scope of the present invention as defined in the attached claims, and all of them are within the scope of protection of the present invention.

Claims

1. An efficient melting system for hot processing of castings, comprising legs, a furnace body and a pressing device, wherein the furnace body is provided with legs, and wherein: A pressing device is provided in the furnace body, and the pressing device consists of a first pressing component and a second pressing component. The second pressing component is provided with the first pressing component, and the first pressing component and the second pressing component are both connected to the furnace body. The first pressing component and the second pressing component move up and down alternately above the solid charge blocks in the furnace body, and the solid charge blocks in the furnace body are pressed into the metal liquid through the cooperation of the first pressing component and the second pressing component to accelerate the melting of the solid charge blocks.

2. The high-efficiency melting system for hot processing of castings according to claim 1 is characterized in that: The second pressing assembly is composed of a first fixed plate, a first limiting block and a displacement device. The first fixed plate on the displacement device is movably connected to the furnace body through the displacement device, and the first fixed plate is provided with a first limiting block.

3. The high-efficiency melting system for hot processing of castings according to claim 2 is characterized in that: A third fixing hole is provided on the upper surface of the first fixing disk near the center position, the third fixing hole passes through the first fixing disk, and the third fixing holes are arranged in order on the first fixing disk; a first limiting block is provided on the lower surface of the first fixing disk, the interior of the first fixing disk is a hollow structure, at least one first limiting block is provided, and the first limiting blocks are arranged in order on the first fixing disk; a fixing groove is provided on the lower surface of the first fixing disk between the first limiting blocks, and the fixing groove passes through the first fixing disk.

4. A high-efficiency melting system for hot working of castings according to any one of claims 2-3, characterized in that: The lower surface of the first limit block is an arc-shaped inclined surface structure, and an oxygen outlet hole is arranged on the lower surface of the first limit block. The oxygen outlet hole on the first limit block is connected with the inside of the first fixed plate.

5. The high-efficiency melting system for hot processing of castings according to claim 1 is characterized by: The first pressing assembly is composed of a displacement device, a second fixed plate and a second limit block. The second fixed plate is fixed to the furnace body by the displacement device. The interior of the second fixed plate is a hollow structure. The interior of the second fixed plate is connected to the second fixing hole on the first fixed block through a fixing tube. A second limit block is provided on the lower surface of the second fixed plate. At least one second limit block is provided. The position of the second limit block on the second fixed plate corresponds to the position of the fixing groove on the first fixed plate. A fourth fixing hole is provided on the upper surface of the first fixed plate. The fourth fixing hole passes through the first fixed plate. The position of the fourth fixing hole on the first fixed plate corresponds to the position of the third fixing hole on the first fixed plate.

6. The high-efficiency melting system for hot working of castings according to claim 5 is characterized by: The lower surface of the second limit block is an arc-shaped inclined surface structure, and an oxygen outlet hole is arranged on the lower surface of the second limit block. The oxygen outlet hole on the second limit block is connected with the inside of the second fixed plate, and the length of the second limit block on the second fixed plate is longer than the length of the first limit block on the first fixed plate.

7. The high-efficiency melting system for hot processing of castings according to claim 1 is characterized by: A furnace mouth is provided on the upper surface of the furnace body, and displacement devices are provided on the left and right sides of the outer wall of the furnace body near one end of the upper surface. A first fixing hole is provided on one end of the outer wall of the furnace body near the lower door. At least one first fixing hole is provided, and the first fixing holes are arranged in order on the furnace body. Support legs are provided in the first fixing holes on the furnace body, and a slurry discharge device is provided on the lower surface of the furnace body.

8. The high-efficiency melting system for hot working of castings according to claim 7 is characterized by: The displacement device is composed of a second fixed column, an electric telescopic rod, a first fixed block and a fixed tube. One end of the second fixed column is connected to the furnace body, and the other end of the second fixed column is provided with an electric telescopic rod. One end of the electric telescopic rod is vertically arranged with the second fixed column, and the other end of the electric telescopic rod is provided with a first fixed block. A second fixing hole is provided on the upper surface of the first fixed block, and a fixing tube is provided on the side wall of the first fixed block. The fixing tube is an "L"-shaped structure, and one end of the fixing tube is connected to the second fixing hole on the first fixed block, and the other end of the fixing tube is connected to the inside of the first fixed plate.

9. The high-efficiency melting system for hot working of castings according to claim 8, characterized in that: The slurry discharge device is composed of a discharge pipe and a slurry discharge valve. The discharge pipe is a funnel-shaped structure. One end of the discharge pipe is connected to the inside of the furnace body, and the other end of the discharge pipe is provided with a slurry discharge valve.

10. A high-efficiency melting system for hot working of castings according to any one of claims 7 to 9, characterized in that: A fixed base is arranged on one end of the leg, a first fixing column is arranged on the other end of the leg, one end of the first fixing column is connected to the leg, and the other end of the first fixing column is fixed in a first fixing hole on the furnace body.

Images