Medium-frequency electric furnace for producing high-chromium steel balls

Abstract

The utility model relates to the technical field of medium-frequency electric furnaces, and discloses a medium-frequency electric furnace for producing high-chromium steel balls, which comprises a mounting frame, first motors are detachably connected to two sides of the mounting frame through bolts, transmission rods are fixedly connected to power output ends of the first motors, and a furnace body is vertically arranged in an inner cavity of the mounting frame. The two sides of the furnace body are detachably connected with the tail ends of the transmission rods, an air exhaust cover is arranged at the upper end of an inner cavity of the mounting frame, and an air suction cover is connected to the lower surface of the air exhaust cover in an embedded mode. The waste gas extraction device can effectively extract generated waste gas in the furnace body using process, pollution to the working environment is avoided, the body health of workers is effectively protected, the environmental protection performance of the device in the using process is improved, surrounding personnel can be warned during discharging, the workers are prevented from getting close to the furnace body in the discharging process, and the waste gas extraction device is convenient to use. And the use safety of the device is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of intermediate frequency electric furnaces, in particular to an intermediate frequency electric furnace for producing high-chromium steel balls. Background Technique

[0002] Smelting is an extremely important key link in the production process of wear-resistant steel balls. The solid raw materials of specified materials are melted into liquid state through high temperature to facilitate the stable progress of subsequent production links. Intermediate frequency electric furnaces are common smelting equipment in the production of wear-resistant steel balls;

[0003] During the heating and melting process of high-chromium metal, metal waste gas will be generated. The waste gas from the melting of high-chromium steel contains harmful substances such as chromium oxide. Prolonged exposure to these gases will cause health problems such as respiratory diseases and skin allergies. Traditional intermediate frequency electric furnaces for producing high-chromium steel balls cannot effectively treat the waste gas generated during the heating and melting process of steel, resulting in the easy dispersion of waste gas into the working area, thereby endangering the health of workers. Moreover, when pouring molten steel, it cannot effectively warn the surrounding personnel, making it easy for workers to touch the molten steel, increasing the danger during the material taking process of the intermediate frequency electric furnace. For this reason, we propose an intermediate frequency electric furnace for producing high-chromium steel balls. Content of the Utility Model

[0004] The main purpose of the utility model is to provide an intermediate frequency electric furnace for producing high-chromium steel balls, which can effectively solve the problems in the background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: An intermediate frequency electric furnace for producing high-chromium steel balls, including a mounting frame. Both sides of the mounting frame are detachably connected with a first motor through bolts. The power output end of the first motor is fixedly connected with a transmission rod. The inner cavity of the mounting frame is vertically provided with a furnace body. Both sides of the furnace body are detachably connected with the ends of the transmission rods. The upper end of the inner cavity of the mounting frame is provided with an air extraction cover. The lower surface of the air extraction cover is inlaid with an air suction hood. The center position at the top of the air extraction cover is interconnected with an air suction pipe, and the end of the air suction pipe is interconnected with the air inlet pipe of an external purifier. Adjusting components are arranged on the inner side wall surfaces of both sides of the mounting frame where the air extraction cover is located. A protection component is arranged on the surface of the mounting frame.

[0006] Preferably, the adjusting component includes adjusting chutes vertically opened on both sides of the upper end of the inner cavity of the mounting frame. An adjusting screw rod is vertically rotatably arranged in the inner cavity of the adjusting chute. A connecting slider is slidably arranged in the inner cavity of the adjusting chute. A threaded connection hole is vertically opened on the upper surface of the connecting slider, and the connecting slider is threadedly connected to the surface of the adjusting screw rod through the threaded connection hole. The inner side wall of the connecting slider is fixedly connected to both sides of the air extraction cover.

[0007] Preferably, a second motor is inlaid at the top end of the adjusting chute, and the power output end of the second motor is fixedly connected to the top end of the adjusting screw rod.

[0008] Preferably, the protection component includes a storage cavity formed on the surface of the mounting frame. A warning frame is arranged in the inner cavity of the storage cavity. Fixing sleeves are horizontally nested at the central positions on both sides of the warning frame, and the warning frame is fixedly arranged on the surface of the transmission rod through the fixing sleeves.

[0009] Preferably, a heat insulation plate is fixedly connected to the inner cavity of the air extraction cover.

[0010] Preferably, a discharge port is arranged on the top surface of the furnace body.

[0011] Preferably, both the first motor and the second motor are electrically connected to an external power supply through a matching controller.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. By the mutual cooperation of the air extraction cover, the suction pipe, the air suction hood, the second motor, the adjustment chute, the adjustment screw rod, the connection slider and the threaded connection hole, the air extraction cover is threadedly connected to the vertically arranged adjustment screw rod in the adjustment chute by means of the connection slider. When the steel is heated and melted in the furnace body, the controller is used to control the second motor to drive the adjustment screw rod to rotate clockwise, so that the connection slider threadedly connected thereto and the air extraction cover connected to the inside of the connection slider move downward under the limitation of the adjustment chute, and then cover the surface of the furnace body, thereby covering the furnace body from above. During the melting process, the waste gas is sucked through the air suction channel composed of the suction pipe and the air suction hood on the air extraction cover by a matching external exhaust fan and is conveyed into a matching external purifier for purification, so as to avoid polluting the working environment, effectively protect the physical health of the staff, and improve the environmental protection performance during the use of the intermediate frequency electric furnace.

[0014] 2. By the mutual cooperation of the first motor, the transmission rod, the fixing sleeve, the storage cavity and the warning frame, when pouring molten steel, the furnace body is driven to rotate by the first motor and the transmission rod, so that the furnace body is tilted, thereby facilitating the pouring out of the objects in the furnace body. During the pouring process, the rotating rod will drive the warning frame connected to the transmission rod through the fixing sleeve to rotate synchronously, so as to warn the surrounding fence during the tilting process of the furnace body, avoid blocking the surrounding personnel, and prevent the staff from approaching the furnace body during the pouring process, ensuring the safety during pouring. And the reverse operation can be used to store it in the storage cavity, avoiding obstacles to the staff when in the furnace body, and effectively improving the practicality during the use of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0016] Figure 2 is a schematic diagram of the structure of A of the present utility model;

[0017] Figure 3 This is a schematic structural diagram of the front view of the utility model;

[0018] Figure 4 This is a schematic structural diagram of the air extraction cover of the utility model.

[0019] In the figure: 1, mounting frame; 2, first motor; 3, second motor; 4, air extraction cover; 5, suction pipe; 6, furnace body; 7, discharge port; 8, storage cavity; 9, warning frame; 10, adjustment chute; 11, adjustment screw; 12, connecting slider; 13, threaded connection hole; 14, transmission rod; 15, fixed sleeve; 16, heat insulation plate; 17, air suction hood. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.

[0021] Embodiment

[0022] Please refer to Figure 1 - Figure 4 , a medium-frequency electric furnace for the production of high-chromium steel balls shown in the figure, including a mounting frame 1. Both sides of the mounting frame 1 are detachably connected with a first motor 2 through bolts. The power output end of the first motor 2 is fixedly connected with a transmission rod 14. A furnace body 6 is vertically arranged in the inner cavity of the mounting frame 1. Both sides of the furnace body 6 are detachably connected with the end of the transmission rod 14. An air extraction cover 4 is arranged at the upper end of the inner cavity of the mounting frame 1. An air suction hood 17 is inlaid on the lower surface of the air extraction cover 4. The center position at the top of the air extraction cover 4 is communicated with a suction pipe 5, and the end of the suction pipe 5 is communicated with the intake pipe of an external purifier. Adjusting components are arranged on the inner side wall surfaces of the mounting frame 1 on both sides of the air extraction cover 4, and a protection component is arranged on the surface of the mounting frame 1; by driving the furnace body 6 to rotate through the first motor 2 and the transmission rod 14, the furnace body 6 is tilted, so as to facilitate the discharge of the objects in the furnace body 6, reduce the discharge difficulty and improve the discharge efficiency. And through the cooperation of an externally configured exhaust fan and the air suction channel composed of the suction pipe 5 and the air suction hood 17 on the air extraction cover 4, the waste gas is sucked and conveyed into an externally configured purifier for purification, so as to avoid polluting the working environment, effectively protect the physical health of the staff, and improve the environmental protection performance during the use of the medium-frequency electric furnace.

[0023] Among them, the adjustment component includes adjustment chutes 10 vertically opened on both sides of the upper end of the inner cavity of the mounting frame 1. An adjustment screw 11 is vertically rotatably arranged in the inner cavity of the adjustment chute 10. A connecting slider 12 is slidably arranged in the inner cavity of the adjustment chute 10. A threaded connection hole 13 is vertically opened on the upper surface of the connecting slider 12, and the connecting slider 12 is threadedly connected to the surface of the adjustment screw 11 through the threaded connection hole 13. The inner side wall of the connecting slider 12 is fixedly connected to both sides of the air extraction cover 4. A second motor 3 is embedded and connected to the top end of the adjustment chute 10. The power output end of the second motor 3 is fixedly connected to the top end of the adjustment screw 11. By means of the second motor 3, the adjustment screw 11 can be rotated forward and backward, thereby driving the connecting slider 12 threadedly connected thereto and the air extraction cover 4 fixed to the outside of the connecting slider 12 to move up and down. Furthermore, when the furnace body 6 is in use, the air extraction cover 4 can extract waste gas and convey it into a purifier provided outside for purification, ensuring the environmental protection during the use of the device.

[0024] Among them, the protection component includes a storage cavity 8 opened on the surface of the mounting frame 1. A warning frame 9 is arranged in the inner cavity of the storage cavity 8. Fixed sleeves 15 are horizontally nested at the central positions on both sides of the warning frame 9, and the warning frame 9 is fixedly arranged on the surface of the transmission rod 14 through the fixed sleeves 15. During the tipping process, the rotating rod will drive the warning frame 9 connected to the transmission rod 14 through the fixed sleeves 15 to rotate synchronously, thereby warning the surrounding fence during the tipping process of the furnace body 6, avoiding blocking the surrounding personnel, and preventing the staff from approaching the furnace body 6 during the tipping process, ensuring the safety during tipping. And by operating in the reverse direction, it can be stored in the storage cavity 8, avoiding hindering the staff when the furnace body 6 is in use, and effectively improving the practicability during the use of the device.

[0025] Among them, a heat insulation plate 16 is fixedly connected to the inner cavity of the air extraction cover 4. A discharge port 7 is arranged on the top surface of the furnace body 6. Both the first motor 2 and the second motor 3 are electrically connected to an external power supply through a matching controller. By means of the heat insulation plate 16 arranged inside the air extraction cover 4, the heat in the furnace body 6 can be blocked during the air extraction process, effectively reducing heat dissipation, reducing energy consumption, and avoiding the increase of the temperature in the working area, which can provide a relatively comfortable working environment for the staff and thus improve work efficiency.

[0026] It should be noted that the present utility model is an intermediate frequency electric furnace for the production of high chromium steel balls. Steel is put into the furnace body 6, and the electromagnetic coil arranged in the inner cavity of the furnace body 6 is used to heat and melt the metal parts inside the furnace body 6. During the melting process, the controller is used to control the second motor 3 to drive the adjusting screw 11 to rotate clockwise, so that the connecting slider 12 threadedly connected thereto and the air extraction cover 4 connected to the inside of the connecting slider 12 move downward under the limitation of the adjusting chute 10, and then cover the surface of the furnace body 6, thereby covering the furnace body 6 from above. During the melting process, the exhaust gas is sucked through the air extraction channel composed of the air extraction pipe 5 and the air suction cover 17 on the air extraction cover 4 by the externally configured exhaust fan and transported into the externally configured purifier for purification, so as to avoid polluting the working environment, effectively protect the physical health of the staff, and improve the environmental protection performance during the use of the intermediate frequency electric furnace.

[0027] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0028] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A medium frequency electric furnace for producing high chromium steel balls, comprising a mounting frame (1), characterized in that: The first motor (2) is detachably connected to both sides of the mounting frame (1) by bolts, and the power output end of the first motor (2) is fixedly connected to a transmission rod (14). A furnace body (6) is vertically arranged in the inner cavity of the mounting frame (1), and both sides of the furnace body (6) are detachably connected to the ends of the transmission rod (14). An exhaust cover (4) is arranged at the upper end of the inner cavity of the mounting frame (1), and an air suction hood (17) is embedded and connected to the lower surface of the exhaust cover (4). An air suction pipe (5) is interconnected at the center position of the top of the exhaust cover (4), and the end of the air suction pipe (5) is interconnected with the air inlet pipe of the external purifier. Adjustment components are arranged on the inner wall surfaces of the mounting frame (1) on both sides of the exhaust cover (4), and a protective component is arranged on the surface of the mounting frame (1).

2. The medium frequency electric furnace for producing high chromium steel balls according to claim 1, characterized in that: The adjustment component comprises an adjustment slot (10) vertically opened on both sides of the upper end of the inner cavity of the mounting frame (1); an adjustment screw (11) is vertically rotated in the inner cavity of the adjustment slot (10); a connecting slider (12) is slidably provided in the inner cavity of the adjustment slot (10); a threaded connection hole (13) is vertically opened on the upper surface of the connecting slider (12); the connecting slider (12) is threadedly connected to the surface of the adjustment screw (11) through the threaded connection hole (13); and the inner side wall of the connecting slider (12) is fixedly connected to both sides of the exhaust cover (4).

3. The medium frequency electric furnace for producing high chromium steel balls according to claim 2, characterized in that: The top end of the adjusting slide groove (10) is inlaid with a second motor (3), and the power output end of the second motor (3) is fixedly connected to the top end of the adjusting screw rod (11).

4. The medium frequency electric furnace for producing high chromium steel balls according to claim 1, characterized in that: The protection component comprises a storage cavity (8) opened on the surface of the mounting frame (1), a warning frame (9) is provided in the inner cavity of the storage cavity (8), fixing sleeves (15) are transversely nested at the center positions on both sides of the warning frame (9), and the warning frame (9) is fixed to the surface of the transmission rod (14) through the fixing sleeves (15).

5. The medium frequency electric furnace for producing high chromium steel balls according to claim 1, characterized in that: A heat insulation board (16) is fixedly connected to the inner cavity of the air extraction cover (4).

6. The medium frequency electric furnace for producing high chromium steel balls according to claim 1, characterized in that: The top surface of the furnace body (6) is provided with a discharge port (7).

7. The medium frequency electric furnace for producing high chromium steel balls according to claim 1, characterized in that: The first motor (2) and the second motor (3) are both electrically connected to an external power source via a matching controller.

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