Crusher for treating steelmaking steel slag

By introducing a buffer suspension mechanism and a vibrating screen into the crusher, the problem of crushing high-hardness and complex-composition steel slag was solved, efficient crushing and screening were achieved, and the service life of the equipment and resource recovery efficiency were improved.

CN223381685UActive Publication Date: 2025-09-26NANJING IRON & STEEL CO LTD
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Patent Information

Application Number
CN202422081072.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-27
Publication Date
2025-09-26
Estimated Expiration
2034-08-27

AI Technical Summary

Technical Problem

Existing crushing equipment is difficult to effectively process steel slag with high hardness and complex composition, and does not have screening function, resulting in low crushing efficiency and high maintenance costs.

Method used

A crusher including a buffer suspension mechanism and a vibrating screen is designed. The buffer suspension mechanism reduces vibration transmission and improves the screening efficiency of the vibrating screen. The crushing and screening of steel slag are achieved through the cooperation of the rolling roller and the vibrating motor.

Benefits of technology

It improves the crushing efficiency and screening effect of steel slag, reduces equipment wear and maintenance costs, and improves resource recovery efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of steel slag treatment, and discloses a crusher for steel-making steel slag treatment, which comprises a mounting frame and a shell mounted on the mounting frame, two parallel rolling rollers are rotatably mounted in the shell, a driving mechanism for driving the two rolling rollers to rotate reversely is mounted on the mounting frame, and the two rolling rollers are mounted on the mounting frame. Supporting rods are fixed to the two sides of the mounting frame, a buffer suspension mechanism is fixed to the bottoms of the supporting rods, an obliquely-arranged vibrating screen is mounted at the bottom of the buffer suspension mechanism, a screen is mounted in the middle of the vibrating screen, and a vibrating motor is mounted on the outer wall of the vibrating screen. Through the arrangement of the buffer suspension mechanism, vibration can be transmitted to the mounting frame after passing through the buffer suspension mechanism, the vibration can be weakened, then great influence on the crushing mechanism on the mounting frame is reduced, the vibration screen is arranged in a suspension mode, the vibration amplitude can be improved under the action of the vibration motor, and then the screening efficiency is improved.
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Description

Technical Field

[0001] The utility model belongs to the technical field of steel slag treatment, in particular to a crusher for treating steel-making slag. Background Art

[0002] Steel slag is an inevitable byproduct of the steelmaking process. It primarily consists of furnace slag, iron oxides, silicates, and other metal oxides, containing significant amounts of unreacted iron and other valuable metals. Therefore, effectively treating steel slag and recovering its iron content is crucial for improving resource utilization and reducing production costs.

[0003] Crushing is a key step in traditional steel slag processing. However, due to the high hardness and complex composition of steel slag, conventional crushing equipment presents numerous challenges in handling it. First, the high hardness of steel slag requires powerful crushing equipment, a requirement that conventional crushing equipment often struggles to meet, resulting in low crushing efficiency. Second, the complex composition of steel slag makes the crushing process prone to wear and blockage, further reducing crushing efficiency and increasing maintenance costs.

[0004] To address these issues, the existing double-roll crusher, a new type of crushing equipment, has shown promising application prospects in the field of steel slag processing due to its unique structure and crushing mechanism. However, existing double-roll crushers still have some shortcomings when processing steel slag, such as the lack of screening function.

[0005] Therefore, the utility model proposes a crusher for treating steel-making slag. Utility Model Content

[0006] In order to solve the problems raised in the above background technology, the utility model provides a crusher for treating steelmaking slag.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a crusher for processing steel-making slag, comprising a mounting frame and a shell mounted on the mounting frame, two parallel rolling rollers are rotatably mounted in the shell, a driving mechanism for driving the two rolling rollers to rotate in opposite directions is mounted on the mounting frame, support rods are fixed on both sides of the mounting frame, a buffer suspension mechanism is fixed to the bottom of the support rods, an inclined vibrating screen is mounted on the bottom of the buffer suspension mechanism, a screen is mounted in the middle of the vibrating screen, and a vibration motor is mounted on the outer wall of the vibrating screen.

[0008] Furthermore, the driving mechanism includes a driving motor, which is fixed on the mounting frame. The output end of the driving motor is connected to one of the rolling rollers through a belt transmission mechanism. Gears are fixed to the rotating ends of the two rolling rollers, and the two gears are meshed and connected.

[0009] Furthermore, the buffer suspension mechanism includes a connecting member fixedly connected to the support rod and a mounting frame, a pull rod is installed on the connecting member, the lower end of the pull rod is movably extended to the interior of the mounting frame and is fixed with a lower baffle, a first spring is sleeved on the pull rod located between the lower baffle and the top of the mounting frame, and the lower end of the mounting frame is installed on the vibrating screen.

[0010] Furthermore, the connecting member is in an H-shaped structure, and the upper end of the pull rod has a first hook, which is hung on the connecting member.

[0011] Furthermore, the lower end of the installation frame is triangular in shape, a second hook is fixed on the outer wall of the vibrating screen, and the second hook is hung on the lower end of the installation frame.

[0012] Furthermore, a material feed port is provided on the top of the shell, and a material guide assembly is detachably connected to the top of the material feed port. The material guide assembly includes a frame, and material guide plates are installed on both sides of the frame.

[0013] Furthermore, a second spring is fixed on the outer wall of the material guide plate, a mounting plate is fixed to the other end of the second spring, and the mounting plate is fixed on the inner wall of the feed port.

[0014] Furthermore, two vibration motors are provided, and the two vibration motors are fixed on a bracket, and the bracket is fixed to the vibrating screen by bolts.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] The utility model adopts the setting of the buffer suspension mechanism, and the vibration will be transmitted to the mounting frame after passing through the buffer suspension mechanism, so the vibration will be weakened, thereby reducing the great influence on the crushing mechanism on the mounting frame. In addition, the vibrating screen is suspended, and the vibration amplitude will be increased under the action of the vibrating motor, thereby improving the screening efficiency.

[0017] When the steel slag falls into the feed port, the utility model guides the steel slag to between the two rolling rollers through the guide plate, thereby achieving the crushing of the steel slag and playing the role of guiding the steel slag. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 for Figure 1 The main view;

[0020] Figure 3 for Figure 1 A top view of

[0021] Figure 4 This is a structural diagram of the utility model from another perspective;

[0022] Figure 5 This is a structural diagram of the material guide component in the utility model.

[0023] In the picture:

[0024] 1. Mounting frame; 2. Shell; 3. Feed port; 4. Material guide assembly; 401. Frame; 402. Material guide plate; 403. Second spring; 404. Mounting plate; 5. Roller; 6. Drive motor; 7. Support rod; 8. Buffer suspension mechanism; 801. Connector; 802. Pull rod; 803. Mounting frame; 804. First spring; 805. Lower baffle; 806. Second hook; 9. Vibrating screen; 10. Screen; 11. Vibrating motor; 12. Gear; 13. Belt drive mechanism. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] like Figures 1 to 5 As shown, the utility model provides a crusher for processing steel-making slag, comprising a mounting frame 1 and a shell 2 mounted on the mounting frame 1, wherein two parallel rolling rollers 5 are rotatably mounted in the shell 2, and a driving mechanism for driving the two rolling rollers 5 to rotate in opposite directions is mounted on the mounting frame 1, support rods 7 are fixed on both sides of the mounting frame 1, a buffer suspension mechanism 8 is fixed to the bottom of the support rod 7, an inclined vibrating screen 9 is mounted on the bottom of the buffer suspension mechanism 8, a screen 10 is mounted in the middle of the vibrating screen 9, and a vibrating motor 11 is mounted on the outer wall of the vibrating screen 9. It is worth noting that the crusher further comprises support legs (not shown in the figure) for supporting the mounting frame 1, so that the device is in a suspended state, the support legs can be in direct contact with the ground, and generally four support legs are provided, and the support legs can be provided as telescopic columns that can be extended and retracted, that is, their height can be adjusted, and universal wheels can be provided at the lower ends of the support legs to facilitate their movement, and a locking mechanism should be provided on the universal wheels;

[0027] During use, when the vibrating screen 9 is working, the vibration motor 11 vibrates, thereby realizing the primary screening of the crushed steel slag. Due to the setting of the buffer suspension mechanism 8, the vibration will pass through the buffer suspension mechanism 8 and then be transmitted to the mounting frame 1. The vibration will be weakened, thereby reducing the significant impact on the crushing mechanism on the mounting frame 1. Moreover, the vibrating screen 9 is suspended, and under the action of the vibration motor 11, the vibration amplitude will be increased, thereby improving the screening efficiency.

[0028] In the specific implementation of the present invention, Figure 1 As shown, the driving mechanism includes a driving motor 6, which is fixed on the mounting frame 1. The output end of the driving motor 6 is connected to one of the rolling rollers 5 through a belt transmission mechanism 13. The rotating ends of the two rolling rollers 5 are fixed with gears 12, and the two gears 12 are meshed and connected. When the driving motor 6 is running, it drives one of the rolling rollers 5 to rotate, and the other rolling roller 5 is driven to rotate by the gear 12. The rotation directions of the two gears 12 are opposite and rotate in a direction close to each other, so that the slag can be crushed.

[0029] In the specific implementation of the present invention, Figure 1 As shown, the buffer suspension mechanism 8 includes a connector 801 fixedly connected to the support rod 7 and a mounting frame 803, a pull rod 802 is installed on the connector 801, the lower end of the pull rod 802 is movably extended to the interior of the mounting frame 803 and is fixed with a lower baffle 805, a first spring 804 is sleeved on the pull rod 802 located between the lower baffle 805 and the top of the mounting frame 803, the lower end of the mounting frame 803 is installed on the vibrating screen 9, the buffer suspension mechanism 8 is not a rigid connection, which effectively reduces the vibration transmitted to the mounting frame 1, and the first spring 804 plays a buffering role.

[0030] In the specific implementation of the present invention, Figure 1 As shown, the connecting member 801 is in an H-shaped structure, and the upper end of the pull rod 802 has a first hook, which is hung on the connecting member 801. The provision of the first hook facilitates the disassembly of the buffer suspension mechanism 8.

[0031] In the specific implementation of the present invention, Figure 1 As shown, the lower end of the mounting frame 803 is triangular in shape, and a second hook 806 is fixed on the outer wall of the vibrating screen 9 . The second hook 806 is hung on the lower end of the mounting frame 803 to facilitate the disassembly of the vibrating screen 9 .

[0032] In the specific implementation of the present invention, Figure 1As shown, a feed port 3 is provided at the top of the shell 2, and a material guide assembly 4 is detachably connected to the top of the feed port 3. The material guide assembly 4 includes a frame 401, and guide plates 402 are installed on both sides of the frame 401. When the steel slag falls into the feed port 3, it is guided to between the two rolling rollers 5 through the guide plate 402, thereby achieving the crushing of the steel slag and playing the role of guiding the steel slag.

[0033] In the specific implementation of the present invention, Figure 1 As shown, a second spring 403 is fixed on the outer wall of the guide plate 402, and a mounting plate 404 is fixed to the other end of the second spring 403. The mounting plate 404 is fixed on the inner wall of the feed port 3. When the slag falls on the inclined guide plate 402, the second spring 403 can play a buffering role to avoid the guide plate 402 being directly subjected to force and causing rigid collision, which can improve its service life to a certain extent.

[0034] In the specific implementation of the present invention, Figure 1 As shown, two vibration motors 11 are provided, and the two vibration motors 11 are fixed on a bracket, and the bracket is fixed to the vibrating screen 9 by bolts. The provision of two vibration motors 11 can improve the vibration effect, thereby improving the screening efficiency of the vibrating screen 9. Small particles of steel slag pass through the screen 10 and fall below the screen 10. A collecting device can be provided below the screen 10 to collect small particles of steel slag. Large particles of steel slag slide along the screen 10 to one side of the screen 10, and another collecting device can also be provided for collection.

[0035] The working principle and use process of the utility model are as follows: when the slag falls into the feed port 3, it is guided between the two crushing rollers 5 by the guide plate 402, thereby achieving the crushing of the slag and playing the role of guiding the slag. When the driving motor 6 is running, it drives one of the crushing rollers 5 to rotate, and the other crushing roller 5 is driven to rotate by the gear. The two gears 12 rotate in opposite directions and rotate in the direction of approaching each other, so that the slag can be crushed. When the vibrating screen 9 is working, the vibration motor 11 vibrates, thereby achieving the primary screening of the crushed slag. Due to the buffer Due to the setting of the suspension mechanism 8, the vibration will be transmitted to the mounting frame 1 after passing through the buffer suspension mechanism 8, and the vibration will be weakened, thereby reducing the significant impact on the crushing mechanism on the mounting frame 1. In addition, the vibrating screen 9 is suspended, and under the action of the vibration motor 11, the vibration amplitude will be increased, thereby improving the screening efficiency. Small particles of steel slag pass through the screen 10 and fall below the screen 10. A collecting device can be set below the screen 10 to collect small particles of steel slag. Large particles of steel slag slide along the screen 10 to one side of the screen 10, and another collecting device can also be set to collect them.

[0036] It should be noted that, in this document, relational terms such as first and second, etc., are used only 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 "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A crusher for processing steel slag in steelmaking, comprising a mounting frame (1) and a housing (2) mounted on the mounting frame (1), wherein two parallel rolling rollers (5) are rotatably mounted in the housing (2), and a driving mechanism for driving the two rolling rollers (5) to rotate in opposite directions is mounted on the mounting frame (1), characterized in that: Support rods (7) are fixed on both sides of the mounting frame (1), a buffer suspension mechanism (8) is fixed at the bottom of the support rods (7), an inclined vibrating screen (9) is installed at the bottom of the buffer suspension mechanism (8), a screen (10) is installed in the middle of the vibrating screen (9), and a vibration motor (11) is installed on the outer wall of the vibrating screen (9).

2. A crusher for treating steelmaking slag according to claim 1, characterized in that: The driving mechanism comprises a driving motor (6), the driving motor (6) being fixed on the mounting frame (1), the output end of the driving motor (6) being connected to one of the rolling rollers (5) via a belt transmission mechanism (13), the rotating ends of the two rolling rollers (5) being fixed with gears (12), and the two gears (12) being meshed and connected.

3. A crusher for treating steelmaking slag according to claim 2, characterized in that: The buffer suspension mechanism (8) includes a connecting member (801) fixedly connected to the support rod (7) and a mounting frame (803), a pull rod (802) is mounted on the connecting member (801), the lower end of the pull rod (802) movably extends into the interior of the mounting frame (803) and is fixed with a lower baffle (805), a first spring (804) is sleeved on the pull rod (802) located between the lower baffle (805) and the top of the mounting frame (803), and the lower end of the mounting frame (803) is mounted on the vibrating screen (9).

4. A crusher for treating steelmaking slag according to claim 3, characterized in that: The connecting member (801) is in an H-shaped structure, and the upper end of the pull rod (802) has a first hook, which is hung on the connecting member (801).

5. A crusher for treating steelmaking slag according to claim 3 or 4, characterized in that: The lower end of the installation frame (803) is triangular in shape, and a second hook (806) is fixed on the outer wall of the vibrating screen (9), and the second hook (806) is hung on the lower end of the installation frame (803).

6. A crusher for treating steelmaking slag according to claim 1, characterized in that: A material feed port (3) is provided at the top of the shell (2), and a material guide assembly (4) is detachably connected to the top of the material feed port (3). The material guide assembly (4) comprises a frame (401), and material guide plates (402) are installed on both sides of the frame (401).

7. A crusher for treating steelmaking slag according to claim 6, characterized in that: A second spring (403) is fixed on the outer wall of the guide plate (402), and a mounting plate (404) is fixed to the other end of the second spring (403), and the mounting plate (404) is fixed on the inner wall of the feed port (3).

8. The crusher for treating steelmaking slag according to claim 1, characterized in that: Two vibration motors (11) are provided, and the two vibration motors (11) are fixed on a bracket, and the bracket is fixed to the vibration screen (9) by bolts.