Nanocrystalline molten steel purifying and deslagging device

Abstract

The utility model discloses a nanocrystalline molten steel purifying and deslagging device which comprises a movable frame, a supporting frame fixedly connected to the movable frame, a limiting table fixedly connected to the supporting frame, a rotary table rotationally connected to the limiting table, a lead screw stepping motor fixedly installed on the rotary table and a worm wheel disc located outside the lead screw stepping motor. A worm meshed with the worm gear disc and a rotation driving motor in transmission connection with the worm are further installed on the supporting frame. The slag removal dip net is supported and hung above the electric furnace through the movable frame, the rotary driving motor drives the rotary table and the slag removal dip net below the rotary table to rotate around the connecting rod, the lead screw stepping motor drives the slag removal dip net to descend and enter the electric furnace, and steel slag can be fished along with rotation of the slag removal dip net. The switch of the lead screw stepping motor and the rotary driving motor is remotely controlled through the power line, manual operation beside the electric furnace is not needed, and the effects of improving the working environment, reducing the labor intensity and improving the operation safety are achieved.

Description

Technical Field

[0001] This utility model relates to the field of slag removal technology for molten steel, specifically a nanocrystalline molten steel purification and slag removal device. Background Technology

[0002] Nanocrystalline materials possess characteristics such as low coercivity, high resistivity, high permeability, and low loss, making them highly promising for applications in high-frequency, high-power-density power electronic devices. They are widely used in devices such as electronic transformers and inductors in the medium- and high-frequency fields. After nanocrystalline steel is heated and melted, solid wastes such as calcium oxide, silicon dioxide, and iron oxide are separated by adding a slag-removing agent. By removing these wastes, the steel can achieve higher purity, enabling the production of higher-quality nanocrystalline products.

[0003] Currently, many companies still rely on manual slag removal, using a shovel with holes at the bottom to remove steel slag from the electric furnace. To avoid wasting molten steel, the shovel is tilted slightly and held still for a period of time while shoveling, allowing the molten steel to flow back into the furnace. Because the molten steel is extremely hot, working near the furnace is not only unbearably hot and physically demanding, but also highly dangerous. To improve safety and reduce labor intensity, our company has designed and proposed a convenient and practical nanocrystalline molten steel purification and slag removal device. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a nanocrystalline steel liquid purification and slag removal device, which solves the problems of artificial heat, high physical labor, and high risk associated with manual slag removal of nanocrystalline steel liquid in existing technologies.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A nanocrystalline steel liquid purification and slag removal device includes a movable frame, a support frame fixedly connected to the movable frame, a limiting platform fixedly connected to the support frame, a rotary table rotatably connected to the limiting platform, a lead screw stepper motor and a worm gear disk located outside the lead screw stepper motor fixedly installed on the rotary table, and a worm gear meshing with the worm gear disk and a rotary drive motor connected to the worm gear transmission are also installed on the support frame.

[0007] The bottom of the rotary table is fixed with a positioning frame that passes through the limiting platform and the support frame and extends to the bottom of the limiting platform. A positioning sleeve is vertically fixed on the positioning frame. A connecting rod slides vertically inside the positioning sleeve. The upper end of the connecting rod is connected to the lower end of the lead screw of the lead screw stepper motor through a rotary joint. A rotatable slag removal screen is installed at the lower end of the connecting rod.

[0008] Preferably, the mobile frame is a widened modified manual hydraulic forklift.

[0009] Preferably, the bottom and side walls of the groove on the limiting platform are equipped with bearings that are rolledly connected to the rotary table.

[0010] Preferably, a limiting pressure roller is installed on the limiting platform and is in rolling connection with the upper surface of the rotary table.

[0011] Preferably, the positioning sleeve is a square tube sleeve, and the connecting rod is a straight square rod that matches the shape of the positioning sleeve.

[0012] Preferably, the positioning sleeve is fixed with diagonal bracing rods around its perimeter and between the positioning frame and the positioning sleeve.

[0013] Preferably, the slag removal net includes two horizontal bars, a connecting seat slidably sleeved on the lower horizontal bar, side bars vertically fixed to both ends of the two horizontal bars and extending downwards, a net frame fixed between the two side bars, and a barrier net fixed on the net frame. The connecting seat is fixedly connected to the connecting rod, and a positioning groove is provided on the front of the connecting seat corresponding to the position of the upper horizontal bar.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] This invention uses a movable frame to support and suspend the slag removal screen above the electric furnace. A rotary drive motor drives the rotary table and the slag removal screen below it to rotate around the connecting rod. A lead screw stepper motor drives the slag removal screen to descend into the electric furnace. As the slag removal screen rotates, it can collect steel slag. After the lead screw stepper motor drives the slag removal screen to rise and stop, the molten steel in the slag can flow back into the electric furnace. After cooling for a period of time, the movable frame can be removed and the steel slag on the slag removal screen can be cleaned. The lead screw stepper motor and rotary drive motor can be controlled remotely via a power cord, eliminating the need for manual operation next to the electric furnace. This improves the working environment, reduces labor intensity, and enhances operational safety, solving the problems of manual slag removal of nanocrystalline steel liquid in existing technologies, such as artificial heat, high physical labor, and high risk. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a top view of the support frame and movable frame of this utility model;

[0018] Figure 3 This is a partial structural diagram of the limiting platform of this utility model;

[0019] Figure 4 This is a partial structural cross-sectional view of the limiting platform of this utility model;

[0020] Figure 5 This is a front view of the slag removal and scraping net of this utility model;

[0021] Figure 6 This is a side sectional view of the slag removal and scraping net of this utility model.

[0022] In the diagram: 1. Moving frame; 2. Support frame; 3. Limiting platform; 4. Rotary table; 5. Lead screw stepper motor; 6. Worm gear; 7. Worm; 8. Rotary drive motor; 9. Positioning frame; 10. Positioning sleeve; 11. Connecting rod; 12. Rotary joint; 13. Slag removal net; 131. Crossbar; 132. Connecting seat; 133. Side rod; 134. Net frame; 135. Barrier net; 136. Positioning groove; 14. Bearing; 15. Limiting pressure roller; 16. Diagonal brace. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figure 1-6 As shown, this utility model provides a technical solution: a nanocrystalline steel liquid purification and slag removal device, including a mobile frame 1, which is a widened modified manual hydraulic forklift for easy movement. A support frame 2 is fixedly connected to the mobile frame 1, a limiting platform 3 is fixedly connected to the support frame 2, a rotary table 4 is rotatably connected to the limiting platform 3, and bearings 14 that are rolled and connected to the rotary table 4 are installed on the bottom and side walls of the groove of the limiting platform 3. A limiting pressure roller 15 that is rolled and connected to the upper surface of the rotary table 4 is installed on the limiting platform 3.

[0025] A lead screw stepper motor 5 and a worm gear disk 6 located outside the lead screw stepper motor 5 are fixedly installed on the rotary table 4. A worm 7 that meshes with the worm gear disk 6 and a rotary drive motor 8 that is connected to the worm 7 are also installed on the support frame 2.

[0026] A positioning frame 9 is fixed at the bottom of the rotary table 4, which passes through the limiting platform 3 and the support frame 2 and extends to the bottom of the limiting platform 3. A positioning sleeve 10 is vertically fixed on the positioning frame 9. A connecting rod 11 slides vertically inside the positioning sleeve 10. The positioning sleeve 10 is a square tube sleeve, and the connecting rod 11 is a straight square rod that matches the shape of the positioning sleeve 10. Diagonal bracing rods 16 are fixed between the positioning sleeve 10 and the positioning frame 9 around the perimeter.

[0027] The upper end of the connecting rod 11 is connected to the lower end of the lead screw of the lead screw stepper motor 5 through a rotary joint 12, and a rotatable slag removal screen 13 is installed at the lower end of the connecting rod 11.

[0028] The slag removal net 13 includes two horizontal bars 131, a connecting seat 132 slidably sleeved on the lower horizontal bar 131, side bars 133 vertically fixed at both ends of the two horizontal bars 131 and extending downward, a net frame 134 fixed between the two side bars 133, and a barrier net 135 fixed on the net frame 134. The connecting seat 132 is fixedly connected to the connecting bar 11, and a positioning groove 136 is provided on the front of the connecting seat 132 corresponding to the position of the upper horizontal bar 131.

[0029] Working principle:

[0030] The slag removal screen 13 is supported and suspended above the electric furnace by the movable frame 1. The rotary drive motor 8 drives the rotary table 4, the lead screw stepper motor 5, and the connecting rod 11 and the slag removal screen 13 below it to rotate clockwise around the axis of the connecting rod 11 through the worm 7 and the worm wheel 6. The lead screw stepper motor 5 drives the slag removal screen 13 to descend into the electric furnace through the connecting rod 11. As the slag removal screen 13 rotates around the connecting rod 11, the steel slag can be retrieved. The crossbar 131 can move laterally on the connecting seat 132. When the side rod 133 contacts the side wall of the electric furnace, it can move laterally to make way. The lead screw stepper motor 5 drives the slag removal screen 13 to rise and then stop, allowing the molten steel in the slag to flow back into the electric furnace. After cooling for a period of time, the moving frame 1 is removed, and the slag removal screen 13 is flipped backward around the lower horizontal bar 131 to clean and remove the slag on the slag removal screen 13. The lead screw stepper motor 5 and the rotary drive motor 8 can be controlled remotely via the power cord, without the need for manual operation next to the electric furnace, making it safe and convenient.

[0031] It should be noted that, in this document, terms such as “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A nanocrystalline steel liquid purification and slag removal device, characterized in that: The system includes a movable frame (1), a support frame (2) fixedly connected to the movable frame (1), a limiting platform (3) fixedly connected to the support frame (2), a rotary table (4) rotatably connected to the limiting platform (3), a lead screw stepper motor (5) and a worm gear disk (6) located outside the lead screw stepper motor (5) fixedly installed on the rotary table (4), and a worm (7) meshing with the worm gear disk (6) and a rotary drive motor (8) connected to the worm (7) in a transmission. The bottom of the rotary table (4) is fixed with a positioning frame (9) that passes through the limiting platform (3) and the support frame (2) and extends to the bottom of the limiting platform (3). A positioning sleeve (10) is vertically fixed on the positioning frame (9). A connecting rod (11) slides vertically inside the positioning sleeve (10). The upper end of the connecting rod (11) is connected to the lower end of the lead screw of the lead screw stepper motor (5) through a rotary joint (12). A rotatable slag removal screen (13) is installed at the lower end of the connecting rod (11).

2. The nanocrystalline steel liquid purification and slag removal device according to claim 1, characterized in that: The mobile frame (1) is a widened and modified manual hydraulic forklift.

3. The nanocrystalline steel liquid purification and slag removal device according to claim 1, characterized in that: The bottom and side walls of the groove on the limiting platform (3) are equipped with bearings (14) that are rolledly connected to the rotary table (4).

4. The nanocrystalline steel liquid purification and slag removal device according to claim 1, characterized in that: The limiting platform (3) is equipped with a limiting pressure roller (15) that is rolledly connected to the upper surface of the rotary table (4).

5. The nanocrystalline steel liquid purification and slag removal device according to claim 1, characterized in that: The positioning sleeve (10) is a square tube sleeve, and the connecting rod (11) is a straight square rod that matches the shape of the positioning sleeve (10).

6. The nanocrystalline steel liquid purification and slag removal device according to claim 1, characterized in that: The positioning sleeve (10) is fixed with diagonal bracing rods (16) around its perimeter and between the positioning frame (9).

7. The nanocrystalline steel liquid purification and slag removal device according to claim 1, characterized in that: The slag removal net (13) includes two horizontal bars (131), a connecting seat (132) slidably sleeved on the lower horizontal bar (131), side bars (133) vertically fixed at both ends of the two horizontal bars (131) and extending downward, a net frame (134) fixed between the two side bars (133), and a barrier net (135) fixed on the net frame (134). The connecting seat (132) is fixedly connected to the connecting rod (11), and a positioning groove (136) is provided on the front of the connecting seat (132) corresponding to the position of the upper horizontal bar (131).

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