Smelting furnace structure for steel production

Abstract

The utility model relates to a smelting furnace structure for steel production, which comprises a furnace body consisting of a shell and an inner container, an electromagnetic induction heating coil is wound and fixed on the peripheral side of the inner container, an electric connector electrically connected with the electromagnetic induction heating coil is fixedly mounted on the shell, and the electric connector is fixedly connected with the inner container. In the smelting process of steel and iron materials, the high-temperature axial flow fan can suck smoke dust and harmful gas generated after the steel and iron materials are heated, and the gas is conveyed to the filter through the flexible connecting pipeline to be preliminarily filtered; then the primarily filtered gas is conveyed to the containing box to be further purified by absorbing sulfur dioxide gas through the purifying liquid, and finally purified air is exhausted through the exhaust pipe, so that the situation that harmful gas generated during smelting of steel and iron materials is directly exhausted to pollute the environment is avoided as much as possible; and the body health of workers can be influenced.

Description

Technical Field

[0001] The utility model belongs to the technical field of smelting furnaces, and in particular relates to a smelting furnace structure used for steel production. Background Art

[0002] A melting furnace is a device that melts metal ingots and some scrap metals, adds necessary alloy components, and then melts them into the required alloy through operations such as slagging and refining. It is widely used in the metal smelting and processing industries.

[0003] During the smelting process in the smelting furnace, impurities inside the steel will precipitate from the inside of the steel due to the high temperature, and produce smoke and harmful gases under the action of high temperature. Direct discharge will not only pollute the air, but also affect the health of the workers. Utility Model Content

[0004] The purpose of the present invention is to provide a smelting furnace structure for steel production with a simple structure and reasonable design in order to solve the above problems.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] A smelting furnace structure for steel production includes a furnace body consisting of an outer shell and an inner shell, an electromagnetic induction heating coil is wrapped and fixed around the circumference of the inner shell, an electrical connector electrically connected to the electromagnetic induction heating coil is fixedly installed on the outer shell, the top opening of the furnace body is rotatably connected to a furnace cover, a high-temperature axial flow fan is fixedly installed on the upper surface of the furnace cover, the suction end of the high-temperature axial flow fan is connected to the interior of the furnace body, a containing box is fixedly installed on the outer wall of one side of the outer shell, the containing box contains purified liquid, the top of the containing box is connected to a filter through a pipe, a filter element is detachably connected to the filter, a flexible connecting pipe is provided between the top of the filter and the exhaust end of the high-temperature axial flow fan, and both ends of the flexible connecting pipe are respectively fixedly connected to the exhaust end box of the high-temperature axial flow fan and the top of the filter.

[0007] As a further optimization solution of the present invention, a furnace nozzle is provided on a side of the opening end of the furnace body away from the containing box, and the furnace nozzle is communicated with the inner cavity of the inner tank.

[0008] As a further optimization scheme of the present invention, a U-shaped bracket is provided under the shell, and the top ends of the two vertical sections of the bracket are rotatably connected to a connecting shaft. The end of the connecting shaft away from the bracket is fixed to the outer wall of the shell, and a gap is left between the upper surface of the horizontal section of the bracket and the shell for the shell to rotate.

[0009] As a further optimization solution of the present invention, a handle is provided on the side of the shell away from the furnace nozzle, both ends of the handle are respectively fixed to the middle sections of the two connecting shafts, and a rubber sleeve is provided on the middle section of the handle.

[0010] As a further optimization solution of the present invention, two ear plates are fixedly connected to the side of the furnace cover close to the rubber sleeve, and a connecting plate is fixedly connected to the top wall of the shell between the two ear plates, and the connecting plate is rotatably connected to the ear plates through a pin shaft.

[0011] As a further optimization solution of the present invention, an exhaust pipe is fixedly connected to the top of the containing box, the bottom end of the exhaust pipe is connected to the inner cavity of the containing box, and the diameter of the exhaust pipe gradually increases from the bottom end to the top end of the exhaust pipe.

[0012] The beneficial effect of the utility model is that during the smelting process of steel materials, the high-temperature axial flow fan can inhale the smoke and harmful gases generated after the steel materials are heated, and use a flexible connecting pipe to first transport the gas to the filter for preliminary filtration, and then transport the preliminarily filtered gas to the containing box to absorb sulfur dioxide gas through the purification liquid for further purification, and finally the purified air is discharged through the exhaust pipe, thereby avoiding the direct discharge of harmful gases generated during the smelting of steel materials, which not only pollutes the environment but also affects the health of workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the back of the overall structure of the utility model;

[0014] Figure 2 It is a front view schematic diagram of the overall structure of the utility model;

[0015] Figure 3 This is a schematic diagram of the overall cross-sectional structure of the utility model;

[0016] Figure 4 This utility model Figure 3 A magnified view of the local details at point A.

[0017] In the figure: 1. Outer shell; 2. Inner tank; 3. Electromagnetic induction heating coil; 4. Electrical connector; 5. Furnace nozzle; 6. Bracket; 7. Connecting shaft; 8. Handle; 9. Rubber sleeve; 10. Furnace cover; 11. High-temperature axial flow fan; 12. Container; 13. Exhaust pipe; 14. Filter; 15. Filter element; 16. Flexible connecting pipe. DETAILED DESCRIPTION

[0018] The present application is described in further detail below in conjunction with the accompanying drawings. It is necessary to point out that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technicians in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0019] Example

[0020] like Figure 1 - Figure 4 As shown, a melting furnace structure for steel production includes a furnace body consisting of an outer shell 1 and an inner shell 2. An electromagnetic induction heating coil 3 is fixedly wound around the inner shell 2. An electrical connector 4 electrically connected to the electromagnetic induction heating coil 3 is fixedly mounted on the outer shell 1. An external power source can be connected through the electrical connector 4, so that the electromagnetic induction heating coil 3 heats and melts the steel bars contained in the inner shell 2.

[0021] A nozzle 5 is provided on one side of the open end of the furnace body, and the nozzle 5 is connected to the inner cavity of the inner tank 2, so that the staff can pour out the heated molten steel through the nozzle 5, and try to avoid the molten steel from leaking when pouring, which may easily burn the staff;

[0022] A U-shaped bracket 6 is provided below the shell 1. The tops of the two vertical sections of the bracket 6 are rotatably connected to connecting shafts 7. The end of the connecting shaft 7 away from the bracket 6 is fixed to the outer wall of the shell 1. A gap for the shell 1 to rotate is left between the upper surface of the horizontal section of the bracket 6 and the shell 1. A handle 8 is provided on the side of the shell 1 away from the furnace nozzle 5. The two ends of the handle 8 are respectively fixed to the middle sections of the two connecting shafts 7. The middle section of the handle 8 is covered with a rubber sleeve 9 for heat insulation. When the steel is melted in the inner liner 2, the handle 8 can be used to drive the furnace body to rotate around the connecting shaft 7, so that the steel solution in the inner liner 2 can be poured out through the furnace nozzle 5.

[0023] The top opening of the furnace body is provided with a furnace cover 10. Two ear plates are fixedly connected to the side of the furnace cover 10 close to the rubber sleeve 9. A connecting plate is fixedly connected to the top wall of the shell 1 between the two ear plates. The connecting plate is rotatably connected to the ear plates through a pin shaft, so that the user can open and close the furnace cover 10 by rotating it.

[0024] A high-temperature axial flow fan 11 is fixedly installed on the upper surface of the furnace cover 10, and the suction end of the high-temperature axial flow fan 11 is connected to the interior of the furnace body. A holding box 12 is fixedly installed on the outer wall of one side of the outer shell 1, and the holding box 12 contains a purification liquid, which can be sodium hydroxide solution, ammonia water or potassium permanganate solution. The top of the holding box 12 is connected to a filter 14 through a pipe, and a filter element 15 is detachably connected to the filter 14. A flexible connecting pipe 16 is provided between the top of the filter 14 and the exhaust end of the high-temperature axial flow fan 11. The two ends of the flexible connecting pipe 16 are respectively fixedly connected to the exhaust end box filter 14 of the high-temperature axial flow fan 11, and an exhaust pipe 13 is also fixedly connected to the top of the holding box 12. The bottom end of the exhaust pipe 13 is connected to the inner cavity of the holding box 12, and the diameter of the exhaust pipe 13 gradually increases from the bottom end to the top end of the exhaust pipe 13.

[0025] It should be noted that, when using this smelting furnace structure for steel production, after opening the furnace cover 10, the steel material is placed in the inner tank 2, and then the furnace cover 10 is closed, and the electromagnetic induction heating coil 3 is connected to electricity through the electrical connector 4, and the electromagnetic induction heating coil 3 is used to heat the steel material to melt the steel material. During the heating process, the high-temperature axial flow fan 11 is started. Since the suction end of the high-temperature axial flow fan 11 is connected to the furnace body, the smoke and harmful gases generated after the steel material is heated can be inhaled, and the gas is first transported to the filter 14 using the flexible connecting pipe 16, and the particulate matter and impurities are preliminarily filtered through the filter element 15, and then the preliminarily filtered gas is transported to the containing box 12. Since the containing box 12 contains purification liquid, it can absorb sulfur dioxide gas in the gas and further purify the gas discharged from the furnace body. Finally, the purified air is discharged through the exhaust pipe 13, which avoids the direct discharge of harmful gases generated during the smelting of steel materials as much as possible, which not only pollutes the environment but also affects the health of the staff.

[0026] The above-described embodiments merely represent several implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the scope of the present invention, all of which fall within the scope of protection of the present invention.

Claims

1. A smelting furnace structure for steel production, comprising a furnace body consisting of an outer shell (1) and an inner shell (2), wherein an electromagnetic induction heating coil (3) is fixedly wound around the circumference of the inner shell (2), and an electrical connector (4) electrically connected to the electromagnetic induction heating coil (3) is fixedly mounted on the outer shell (1), characterized in that: The top opening of the furnace body is rotatably connected to a furnace cover (10), and a high-temperature axial flow fan (11) is fixedly installed on the upper surface of the furnace cover (10). The air intake end of the high-temperature axial flow fan (11) is connected to the interior of the furnace body. A storage box (12) is fixedly installed on one side outer wall of the shell (1), and the storage box (12) contains a purification liquid. The top of the storage box (12) is connected to a filter (14) through a pipeline, and a filter element (15) is detachably connected to the filter (14). A flexible connecting pipe (16) is provided between the top of the filter (14) and the exhaust end of the high-temperature axial flow fan (11), and both ends of the flexible connecting pipe (16) are respectively fixedly connected to the exhaust end box of the high-temperature axial flow fan (11) and the top of the filter (14).

2. A melting furnace structure for steel production according to claim 1, characterized in that: A furnace nozzle (5) is provided on a side of the furnace body opening away from the containing box (12), and the furnace nozzle (5) is communicated with the inner cavity of the inner container (2).

3. The smelting furnace structure for steel production according to claim 2, characterized in that: A U-shaped bracket (6) is provided below the housing (1), and the top ends of the two vertical sections of the bracket (6) are rotatably connected to a connecting shaft (7). The end of the connecting shaft (7) away from the bracket (6) is fixed to the outer wall of the housing (1), and a gap is left between the upper surface of the horizontal section of the bracket (6) and the housing (1) for the housing (1) to rotate.

4. The smelting furnace structure for steel production according to claim 3, characterized in that: A handle (8) is provided on the side of the housing (1) away from the furnace nozzle (5), and both ends of the handle (8) are respectively fixed to the middle sections of the two connecting shafts (7), and a rubber sleeve (9) is provided on the middle section of the handle (8).

5. The smelting furnace structure for steel production according to claim 4, characterized in that: Two ear plates are fixedly connected to one side of the furnace cover (10) close to the rubber sleeve (9), and a connecting plate is fixedly connected to the top wall of the shell (1) between the two ear plates, and the connecting plate is rotatably connected to the ear plates via a pin shaft.

6. The melting furnace structure for steel production according to claim 1, characterized in that: The top of the storage box (12) is also fixedly connected to an exhaust pipe (13), the bottom end of the exhaust pipe (13) is communicated with the inner cavity of the storage box (12), and the diameter of the exhaust pipe (13) gradually increases from the bottom end to the top end of the exhaust pipe (13).

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