Steel-making slag reduction treatment device

By introducing a pre-crushing structure and an adjustable crushing particle diameter design into the steelmaking slag reduction treatment unit, the problems of insufficient exposure of valuable metals and uneven particle size in existing units have been solved, improving extraction efficiency and purity, and enhancing the stability and adaptability of the unit.

CN223505341UActive Publication Date: 2025-11-04QINGDAO SPECIAL STEEL CO LTD
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Patent Information

Application Number
CN202422477943.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-14
Publication Date
2025-11-04
Estimated Expiration
2034-10-14

AI Technical Summary

Technical Problem

Existing steelmaking slag reduction treatment devices lack pre-crushing structures, resulting in insufficient exposure of valuable metals, uneven particle size, and unstable physical and chemical properties, which affects extraction efficiency and purity. Furthermore, the fixed diameter cannot be matched with the equipment, reducing processing efficiency and stability.

Method used

A device comprising components such as a main housing, a pressure beam, a rotating column, a worm gear ring, and a crushing cone was designed. The device achieves pre-crushing of slag through a motor-driven power rod and a worm gear transmission system. It is equipped with an adjustable crushing particle diameter structure and uses a threaded rod and connecting rod mechanism to adjust the gap between the crushing cone and the adjusting shell, thereby achieving uniformity and adaptability of slag particles.

Benefits of technology

This achieved uniformity and stability in slag particle size, improved the extraction efficiency and purity of valuable metals, enhanced the compatibility and processing efficiency of the equipment, and promoted a deeper understanding of the steelmaking process.

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Abstract

The utility model relates to the technical field of slag reduction, and provides a steel-making slag reduction treatment device which comprises a main machine shell, a pressure-bearing beam is fixedly connected to the inner surface of the main machine shell, a rotating column is rotationally connected to the interior of the pressure-bearing beam, a worm gear ring is fixedly connected to the outer surface of the rotating column in a sleeved mode, a rotating rod is fixedly embedded in the rotating column, and the worm gear ring is fixedly connected with a worm gear ring. A crushing cone is fixedly connected to the top of the rotating rod, a power rod is rotatably connected to the interior of the main machine shell and extends out of one end, a hollow worm fixedly sleeves the outer surface of the power rod, the outer surface of the hollow worm is in meshed connection with the outer surface of a worm gear ring, two L-shaped rods are fixedly connected to the outer surface of the main machine shell, and the two L-shaped rods are fixedly connected to the outer surface of the main machine shell. And the inner sides of the two L-shaped rods are fixedly connected with motors. According to the utility model, valuable metals contained in the furnace slag can be fully exposed, the granularity of the furnace slag is more uniform, the physical and chemical properties are stable, and the formation and change rules of the furnace slag in the steelmaking process can be deeply known.
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Description

Technical Field

[0001] This utility model relates to the field of slag reduction technology, and in particular to a steelmaking slag reduction treatment device. Background Technology

[0002] Slag reduction treatment plays an important role in the following ways: Slag often contains a certain amount of valuable metals such as iron, manganese, and chromium. Through reduction treatment, these metals can be recovered in the form of elements or alloys, improving the utilization rate of metals and reducing production costs. After reduction treatment, some oxides in slag are reduced, thereby reducing the overall weight and volume of slag. This helps to reduce the emission and treatment costs of waste slag, reduce the pressure on the environment, and effectively treat slag to reduce the emission of harmful substances and reduce pollution to soil, water and air. However, existing equipment cannot pre-crush slag well, which is inconvenient for subsequent slag treatment.

[0003] For example, in the prior art, Chinese Publication No. CN103930573A, "Slag Supply Container for Electric Furnace for Steelmaking Slag Reduction Treatment," provides a slag supply container for an electric furnace for steelmaking slag reduction treatment. This slag supply container for an electric furnace for steelmaking slag reduction treatment comprises: a container body for allowing hot steelmaking slag to flow into the electric furnace; a slag discharge section connected to a slag supply port on the electric furnace side; a slag receiving section for receiving the hot steelmaking slag supply; a cover for opening and closing the slag receiving section; an exhaust section for discharging waste gas from the electric furnace; and a tilting device for tilting the container body to adjust the inflow rate of the hot steelmaking slag into the slag supply port on the electric furnace side.

[0004] However, this device lacks a slag pre-crushing structure, which fails to fully expose the valuable metals contained within it. The slag particle size is not uniform enough, and its physical and chemical properties are unstable, making it difficult to gain a deeper understanding of the formation and changes of slag during the steelmaking process. The device also lacks an adjustable particle diameter structure, requiring fine slag particles for the extraction of specific valuable metals. The diameter cannot be adjusted to a smaller size, resulting in lower extraction efficiency and purity. Furthermore, the fixed diameter cannot ensure a good match between the slag and the equipment, reducing processing efficiency and stability. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the prior art, such as the inability to fully expose the valuable metals contained therein, insufficient uniformity of slag particle size, unstable physical and chemical properties, which hinders a deeper understanding of the formation and changes of slag during steelmaking. Furthermore, the need for fine slag particles for extracting specific valuable metals, the inability to adjust the diameter to a smaller size, resulting in lower extraction efficiency and purity, and the inability of a fixed diameter to ensure a good match between the slag and the equipment, thus reducing processing efficiency and stability.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a steelmaking slag reduction treatment device, comprising a main housing, a pressure-bearing beam fixedly connected to the inner surface of the main housing, a rotating column rotatably connected inside the pressure-bearing beam, a worm gear ring fixedly sleeved on the outer surface of the rotating column, a rotating rod fixedly embedded inside the rotating column, a crushing cone fixedly connected to the top of the rotating rod, a power rod rotatably connected inside the main housing and extending out at one end, a hollow worm fixedly sleeved on the outer surface of the power rod, the outer surface of the hollow worm meshing with the outer surface of the worm gear ring, two L-shaped rods fixedly connected to the outer surface of the main housing, a motor fixedly connected to the inner side of the two L-shaped rods, the output end of the motor fixedly connected to the extended end of the power rod, the rotating rod and the crushing cone rotating with the rotating column will perform circular motion, and crush the slag inside the adjusting housing.

[0007] In a preferred embodiment, a fixed shell is fixedly embedded on the inner surface of the main housing, and an adjustable shell is movably embedded on the inner surface of the fixed shell, the adjustable shell being able to move up and down inside the fixed shell.

[0008] In a preferred embodiment, the top of the regulating shell is connected to a feed inlet, and two first shaft blocks are fixedly connected to the top of the regulating shell, so that slag is placed inside the regulating shell through the feed inlet.

[0009] In a preferred embodiment, two liner plates are fixedly connected to both sides of the main housing, and threaded rods are rotatably connected to the inner sides of the two liner plates, with one end extending out. The threaded rods can rotate inside the liner plates.

[0010] In a preferred embodiment, the threads on both sides of the threaded rod rotate in opposite directions, and the outer surface of the threaded rod is threaded with two internal threaded sleeves. Because the threads on both sides of the threaded rod rotate in opposite directions, the two internal threaded sleeves move in opposite directions.

[0011] In a preferred embodiment, a second shaft block is fixedly connected to the bottom of the internal threaded sleeve. A connecting rod is rotatably connected inside the second shaft block. The end of the connecting rod away from the second shaft block is rotatably connected inside the first shaft block. When the two internal threaded sleeves move outward at the same time, one end of the connecting rod will be driven through the second shaft block. The other end of the connecting rod will drive the adjusting shell through the first shaft block, and the shell will move up and down inside the fixed shell.

[0012] In a preferred embodiment, one end of the threaded rod is fixedly connected to a plurality of fixed rods, and the ends of the plurality of fixed rods away from the threaded rod are fixedly connected to a handwheel, which allows the threaded rod to rotate inside the liner through the handwheel and the fixed rods.

[0013] In a preferred embodiment, an air intake hose is movably embedded on the side of the main housing near the motor. One end of the air intake hose is connected to a receiving box. After the slag is crushed, it falls into the receiving box from the gap between the crushing cone and the regulating shell.

[0014] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0015] 1. The present invention has a slag pre-crushing structure, which can fully expose the valuable metals contained therein, make the slag particles more uniform, and make the physical and chemical properties more stable, which is conducive to a deeper understanding of the formation and change of slag in the steelmaking process.

[0016] 2. The present invention has a device with an adjustable particle diameter structure. When fine slag particles are required for the extraction of specific valuable metals, the diameter can be adjusted to a smaller size, resulting in higher extraction efficiency and purity. The adjustable diameter ensures a good match between the slag and the equipment, improving processing efficiency and stability. Attached Figure Description

[0017] Figure 1 A three-dimensional structural schematic diagram of a steelmaking slag reduction treatment device provided by this utility model;

[0018] Figure 2 A schematic diagram of the back structure of a steelmaking slag reduction treatment device provided by this utility model;

[0019] Figure 3 A cross-sectional structural schematic diagram of a steelmaking slag reduction treatment device provided by this utility model;

[0020] Figure 4 A cross-sectional structural schematic diagram of a steelmaking slag reduction treatment device provided by this utility model;

[0021] Figure 5 A schematic diagram of the bottom structure of a steelmaking slag reduction treatment device provided by this utility model;

[0022] Figure 6 This utility model provides a steelmaking slag reduction treatment device. Figure 4 A magnified structural diagram of A in the diagram.

[0023] Legend:

[0024] 1. Main casing; 2. Pressure beam; 3. Rotating column; 4. Worm gear ring; 5. Rotating rod; 6. Crushing cone; 7. Power rod; 8. Hollow worm gear; 9. L-shaped rod; 10. Motor; 11. Fixed shell; 12. Adjusting shell; 13. Feed inlet; 14. First shaft block; 15. Liner plate; 16. Threaded rod; 17. Internal threaded sleeve; 18. Second shaft block; 19. Connecting rod; 20. Fixed rod; 21. Handwheel; 22. Air inlet hose; 23. Discharge box. Detailed Implementation

[0025] 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.

[0026] Please see Figure 1-6 This utility model provides a technical solution: a steelmaking slag reduction treatment device, including a main housing 1, a pressure beam 2 fixedly connected to the inner surface of the main housing 1, a rotating column 3 rotatably connected inside the pressure beam 2, a worm gear ring 4 fixedly sleeved on the outer surface of the rotating column 3, a rotating rod 5 fixedly embedded inside the rotating column 3, a crushing cone 6 fixedly connected to the top of the rotating rod 5, a power rod 7 rotatably connected inside the main housing 1 and extending out one end, a hollow worm 8 fixedly sleeved on the outer surface of the power rod 7, the outer surface of the hollow worm 8 meshing with the outer surface of the worm gear ring 4, two L-shaped rods 9 fixedly connected to the outer surface of the main housing 1, a motor 10 fixedly connected to the inner side of the two L-shaped rods 9, the output end of the motor 10 fixedly connected to the extended end of the power rod 7, the hollow worm 8 rotating with the power rod 7 will, under the meshing action of the worm gear ring 4, cause the rotating column 3 to rotate inside the pressure beam 2.

[0027] like Figure 1-6 As shown, a fixed shell 11 is fixedly embedded on the inner surface of the main unit housing 1, and an adjustable shell 12 is movably embedded on the inner surface of the fixed shell 11. The adjustable shell 12 can be raised and lowered inside the fixed shell 11.

[0028] like Figure 1-6 As shown, the top of the regulating shell 12 is connected to the feed inlet 13, and two first shaft blocks 14 are fixedly connected to the top of the regulating shell 12. The slag is placed inside the regulating shell 12 through the feed inlet 13.

[0029] like Figure 1-6 As shown, two liner plates 15 are fixedly connected to both sides of the main housing 1. Threaded rods 16 are rotatably connected to the inner side of the two liner plates 15 and extend out one end. The threaded rods 16 can rotate inside the liner plates 15.

[0030] like Figure 1-6 As shown, the two threads on the threaded rod 16 rotate in opposite directions. The outer surface of the threaded rod 16 is threaded with two internal threaded sleeves 17. Because the two threads on the threaded rod 16 rotate in opposite directions, the two internal threaded sleeves 17 move in opposite directions.

[0031] like Figure 1-6 As shown, the bottom of the internal threaded sleeve 17 is fixedly connected to a second shaft block 18. A connecting rod 19 is rotatably connected inside the second shaft block 18. One end of the connecting rod 19 away from the second shaft block 18 is rotatably connected inside the first shaft block 14. When the two internal threaded sleeves 17 move outward at the same time, they will drive one end of the connecting rod 19 through the second shaft block 18. The other end of the connecting rod 19 will drive the adjusting shell 12 through the first shaft block 14, and move up and down inside the fixed shell 11.

[0032] like Figure 1-6 As shown, a plurality of fixing rods 20 are fixedly connected to one end of the threaded rod 16. A handwheel 21 is fixedly connected to one end of the fixing rods 20 away from the threaded rod 16. The threaded rod 16 can be rotated inside the liner 15 by the handwheel 21 and the fixing rods 20.

[0033] like Figure 1-6 As shown, an air inlet hose 22 is movably embedded on the side of the main housing 1 near the motor 10. One end of the air inlet hose 22 is connected to a receiving box 23. Nitrogen gas is blown into the receiving box 23 through the air inlet hose 22 to obtain modified slag.

[0034] Working principle: First, the slag is placed inside the regulating shell 12 through the feed inlet 13. Then, the external power supply of the motor 10 is turned on. The model of motor 10 is DOY106, and the rated power is 750W. The motor 10 is fixed to the outside of the main housing 1 by the L-shaped rod 9. After the motor 10 is powered on, it will drive the power rod 7 to rotate. The hollow worm gear 8, which rotates with the power rod 7, will rotate the rotating column 3 inside the pressure beam 2 under the meshing action of the worm wheel ring 4. The rotating rod 5 and the crushing cone 6, which rotate with the rotating column 3, will make a circular motion and crush the slag inside the regulating shell 12. Then, it falls into the receiving box 23 through the gap between the crushing cone 6 and the regulating shell 12, and then through the air inlet hose 2. 2. Nitrogen gas is blown into the receiving box 23 to obtain modified slag. When slag of different diameters is required, the threaded rod 16 can be rotated inside the liner 15 by the handwheel 21 and the fixed rod 20. The rotation of the thread will drive the inner threaded sleeve 17. Because the two threads of the threaded rod 16 rotate in opposite directions, the two inner threaded sleeves 17 move in opposite directions. When the two inner threaded sleeves 17 move outward at the same time, they will drive one end of the connecting rod 19 through the second shaft block 18. The other end of the connecting rod 19 will drive the adjusting shell 12 through the first shaft block 14, and move up and down inside the fixed shell 11. At this time, the size of the gap between the crushing cone 6 and the adjusting shell 12 will change, and the diameter of the crushed slag will also change.

[0035] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A steelmaking slag reduction treatment device, characterized in that, The system includes a main housing (1), a pressure beam (2) fixedly connected to the inner surface of the main housing (1), a rotating column (3) rotatably connected inside the pressure beam (2), a worm gear ring (4) fixedly sleeved on the outer surface of the rotating column (3), a rotating rod (5) fixedly embedded inside the rotating column (3), a crushing cone (6) fixedly connected to the top of the rotating rod (5), a power rod (7) rotatably connected inside the main housing (1) and extending out one end, a hollow worm (8) fixedly sleeved on the outer surface of the power rod (7), the outer surface of the hollow worm (8) meshing with the outer surface of the worm gear ring (4), two L-shaped rods (9) fixedly connected to the outer surface of the main housing (1), a motor (10) fixedly connected to the inner side of the two L-shaped rods (9), and the output end of the motor (10) fixedly connected to the end of the power rod (7) extending out.

2. The steelmaking slag reduction treatment device according to claim 1, characterized in that: A fixed shell (11) is fixedly embedded on the inner surface of the main housing (1), and an adjusting shell (12) is movably embedded on the inner surface of the fixed shell (11).

3. The steelmaking slag reduction treatment device according to claim 2, characterized in that: The top of the adjusting shell (12) is connected to the feed inlet (13), and two first shaft blocks (14) are fixedly connected to the top of the adjusting shell (12).

4. The steelmaking slag reduction treatment device according to claim 3, characterized in that: Two bushings (15) are fixedly connected to both sides of the main housing (1), and threaded rods (16) are rotatably connected to the inner side of the two bushings (15) and extend out one end.

5. The steelmaking slag reduction treatment device according to claim 4, characterized in that: The two threads of the threaded rod (16) rotate in opposite directions, and the outer surface of the threaded rod (16) is threaded with two internal thread sleeves (17).

6. The steelmaking slag reduction treatment device according to claim 5, characterized in that: The bottom of the internal threaded sleeve (17) is fixedly connected to a second shaft block (18), and a connecting rod (19) is rotatably connected inside the second shaft block (18). The end of the connecting rod (19) away from the second shaft block (18) is rotatably connected inside the first shaft block (14).

7. The steelmaking slag reduction treatment device according to claim 4, characterized in that: One end of the threaded rod (16) is fixedly connected to a plurality of fixed rods (20), and the ends of the plurality of fixed rods (20) away from the threaded rod (16) are fixedly connected to a handwheel (21).

8. The steelmaking slag reduction treatment device according to claim 1, characterized in that: An air intake hose (22) is movably embedded on the side of the main housing (1) near the motor (10), and one end of the air intake hose (22) is connected to a receiving box (23).

Citation Information

Patent Citations

  • Slag supply container for electric furnace for steel slag reduction

    CN103930573A