Recycled steel screening and magnetic separation equipment

By designing a magnetic separation device for recycled steel that drives the support base to swing laterally and the screening cylinder to rotate reciprocally, the problems of low efficiency and low separation accuracy in the existing technology have been solved. This device achieves efficient and accurate separation of magnetic and non-magnetic materials, thereby improving the production efficiency and product quality of recycled steel.

CN223915610UActive Publication Date: 2026-02-17JIANGSU DONGHUI RECYCLING MATERIALS CO LTD
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Patent Information

Application Number
CN202520347871.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-03
Publication Date
2026-02-17
Estimated Expiration
2035-03-03

AI Technical Summary

Technical Problem

Existing methods for screening recycled steel are inefficient and lack high sorting accuracy, making it difficult to efficiently and accurately separate magnetic and non-magnetic materials.

Method used

A magnetic separation device for screening recycled steel was designed, comprising a drive unit that drives the support base to swing laterally, a screening cylinder to rotate reciprocally, an electromagnet for magnetic separation, and a screening hole for separation. The device is combined with a hydraulic cylinder and a geared motor to achieve the screening and magnetic separation of steel.

Benefits of technology

It improves the processing efficiency and precision of recycled steel, has a compact structure, is easy to maintain, and can be adapted to the processing of different batches of steel, thus improving its versatility and practicality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The regenerated steel screening and magnetic separation equipment comprises a base and a supporting seat transversely hinged to the base, driving devices used for driving the supporting seat to transversely swing left and right are further installed on the two sides of the base, and supporting rollers are installed at the driving ends of the driving devices; a transversely-arranged collecting barrel and a screening barrel transversely penetrating through the collecting barrel are installed on the supporting seat, the two sides of the screening barrel are arranged on the outer side of the collecting barrel and installed on the supporting seat through a bearing and a bearing seat, and a power device used for driving the screening barrel to rotate in a reciprocating mode is further installed on the supporting seat. A magnetic separation area is arranged at the bottom of the screening barrel, an electromagnet used for conducting magnetic separation treatment on steel is installed on the outer side of the screening barrel at the magnetic separation area, and screening holes are formed in the screening barrel on the two sides of the magnetic separation area. According to the device, the crushed waste steel can be quickly and effectively screened and magnetically separated, the precision is high, the effect is good, and the production efficiency and the product quality of the regenerated steel can be improved.
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Description

Technical Field

[0001] This utility model relates to the field of waste steel recycling technology, and in particular to a magnetic separation device for recycling steel. Background Technology

[0002] Currently, recycled steel mainly comes from discarded buildings, vehicles, and machinery. These scrap steel materials can be remanufactured into steel that meets usage standards through processes such as recycling, crushing, magnetic separation, smelting, and reprocessing. However, how to efficiently and accurately separate magnetic and non-magnetic substances during the production of recycled steel has become a pressing problem to be solved.

[0003] Traditional methods for screening recycled steel mainly rely on manual labor or simple mechanical screening, which is not only inefficient but also difficult to guarantee accuracy. With technological advancements, magnetic separation technology has gradually been applied to the screening of recycled steel. Magnetic separation utilizes a magnetic field to adsorb magnetic materials onto the working surface of the separator, while non-magnetic materials remain unaffected, thus achieving material separation. However, existing magnetic separation equipment still has some problems when processing recycled steel, such as limited processing capacity and low sorting accuracy. Utility Model Content

[0004] The technical problem to be solved by this utility model is to address the shortcomings of the existing technology by providing a magnetic separation equipment for recycled steel that can quickly and effectively screen and separate crushed scrap steel with high precision and good effect, thereby helping to improve the production efficiency and product quality of recycled steel.

[0005] The technical problem to be solved by this utility model is achieved through the following technical solution. This utility model is a magnetic separation device for recycled steel. The device includes a base and a support seat horizontally hinged to the base. A driving device for driving the support seat to swing laterally left and right is installed on both sides of the base. A support roller for cooperating with the support seat is installed at the driving end of the driving device. A collection cylinder arranged laterally and a screening cylinder arranged laterally through the collection cylinder are installed on the support seat. Both sides of the screening cylinder are located on the outer side of the collection cylinder and are mounted on the support seat through bearings and bearing seats. A power device for driving the screening cylinder to reciprocate is also installed on the support seat. A magnetic separation zone is set at the bottom of the screening cylinder. An electromagnet for magnetic separation of the steel is installed on the outer side of the screening cylinder in the magnetic separation zone. Screening holes for sieving the steel are set on the screening cylinders on both sides of the magnetic separation zone.

[0006] The technical problem to be solved by this utility model can also be further achieved through the following technical solution: For the above-mentioned recycled steel screening and magnetic separation equipment, the driving device is a hydraulic cylinder, which is vertically mounted on the base, and the supporting roller is mounted on the top of the hydraulic rod of the hydraulic cylinder.

[0007] The technical problem to be solved by this utility model can also be further achieved through the following technical solution: For the above-mentioned recycled steel screening and magnetic separation equipment, the power device is a geared motor, which is horizontally mounted on the support base, and the motor shaft of the geared motor is connected to the screening cylinder through a transmission wheel.

[0008] The technical problem to be solved by this utility model can also be further achieved by the following technical solution: For the above-mentioned recycled steel screening and magnetic separation equipment, one end of the screening cylinder is set as the input end for steel input, and the other end of the screening cylinder is set as the output end for steel output. On the base on the output end side, there are also a collection trough I for cooperating with the collection cylinder and a collection trough II for cooperating with the screening cylinder.

[0009] The technical problem to be solved by this utility model can also be further achieved through the following technical solution: For the above-mentioned recycled steel screening and magnetic separation equipment, arc-shaped guide plates are installed on the collection cylinder and screening cylinder on the output end side.

[0010] The technical problem to be solved by this utility model can also be further achieved through the following technical solution: for the above-mentioned recycled steel screening and magnetic separation equipment, the screening cylinder and the collecting cylinder are both cylindrical, and the support base and the base are both cuboid.

[0011] The technical problem to be solved by this utility model can also be further achieved through the following technical solution: for the above-mentioned recycled steel screening and magnetic separation equipment, a rubber buffer pad is also installed at the bottom of the base.

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

[0013] 1. High-efficiency magnetic separation and screening capabilities: Through the set electromagnets and screening holes, this equipment can effectively perform magnetic separation and screening of recycled steel. The electromagnets can adsorb steel containing iron, while the screening holes can separate the remaining steel, thereby improving the efficiency and accuracy of steel processing.

[0014] 2. Flexible swing function: The design of the drive device and support rollers of this utility model enables the support base to swing laterally left and right. This flexibility helps the equipment to better adapt and adjust when processing different batches or types of steel, improving the versatility and practicality of the equipment.

[0015] 3. Stable rotation of the screening cylinder: This utility model uses a power device to drive the screening cylinder to rotate back and forth, which helps the steel to be magnetically separated and screened more evenly and fully in the screening cylinder, thus improving the processing effect. At the same time, the installation of bearings and bearing seats ensures the stability and durability of the rotation of the screening cylinder.

[0016] 4. Easy to collect and process: The collection cylinder allows steel that has undergone magnetic separation and screening to be easily collected, facilitating subsequent transportation and processing. This design simplifies the steel processing flow and improves work efficiency.

[0017] 5. Compact structure and easy maintenance: The entire equipment has a compact structure and occupies a small area, making it easy to install and use in limited spaces. At the same time, the various components of the equipment are reasonably designed, making them easy to disassemble and replace, thus reducing maintenance costs and time. Attached Figure Description

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

[0019] Figure 2 This is a schematic diagram of the structure of the screening cylinder of this utility model;

[0020] Figure 3 This is a schematic diagram of the arc-shaped guide plate of this utility model. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] Reference Figure 1-3 A magnetic separation device for screening recycled steel includes a base 1 and a support seat 3 horizontally hinged to the base 1. The base 1 serves as the foundation for the entire device, with a robust and stable structure to ensure that the device will not shake or tilt during operation. The support seat 3, hinged to the base 1, can flexibly swing left and right to better meet the requirements of magnetic separation for screening recycled steel. Specifically...

[0023] On both sides of the base 1, drive devices 4 are installed to drive the support base 3 to swing laterally left and right. Support rollers that cooperate with the support base 3 are installed at the drive end of the drive device 4. The drive device 4 is used to provide power for the swing of the support base 3. The drive devices 4 on both sides of the support base 3 are used to act synchronously. When one drive device 4 pushes upward, the other drive device 4 pulls downward, so that the support base 3 swings left and right. This helps to better adapt and adjust when processing different batches or types of steel, and improves the versatility and practicality of the equipment. Preferably, the drive device 4 is a hydraulic cylinder, which is vertically installed on the base 1, and the support rollers are installed on the top of the hydraulic rod of the hydraulic cylinder.

[0024] A collection cylinder 5 arranged horizontally and a screening cylinder 7 arranged horizontally through the collection cylinder 5 are installed on the support base 3. Both sides of the screening cylinder 7 are located on the outside of the collection cylinder 5 and are mounted on the support base 3 through bearings and bearing seats. A power device 6 for driving the screening cylinder 7 to reciprocate is also installed on the support base 3. The screening cylinder 7 is used to perform magnetic separation treatment on steel, and the collection cylinder 5 is used to collect the steel after it has been processed by the screening cylinder 7. The power device 6 is used to drive the screening cylinder 7 to reciprocate to improve the screening efficiency of steel. Preferably, the power device 6 is a geared motor, which is horizontally mounted on the support base 3. The motor shaft of the geared motor is connected to the screening cylinder 7 through a transmission wheel.

[0025] To achieve magnetic separation of steel, a magnetic separation zone is set at the bottom of the screening cylinder 7. An electromagnet 8 is installed on the outside of the screening cylinder 7 in the magnetic separation zone for magnetic separation of the steel. Screening holes 12 are provided on both sides of the screening cylinder 7 for sieving the steel. The electromagnet 8 is used to attract and retain the steel containing iron, keeping it inside the screening cylinder 7. The screening holes 12 are used to separate the remaining steel from the screening cylinder 7, allowing it to detach from the screening cylinder 7 and enter the collection cylinder 5, thus achieving the magnetic separation of the steel.

[0026] In actual use, one end of the screening cylinder 7 is set as the input end for steel input, and the other end of the screening cylinder 7 is set as the output end for steel output. The base 1 on the output end side is also provided with a collection groove I9 ​​for cooperating with the collection cylinder 5 and a collection groove II10 for cooperating with the screening cylinder 7, so as to facilitate the output and collection of the separated steel containing iron and steel without iron, which facilitates subsequent transportation and processing. Preferably, an arc-shaped guide plate 11 is installed on both the collection cylinder 5 and the screening cylinder 7 on the output end side, which helps the steel to slide smoothly during output. The support base 3 is also provided with an opening for cooperating with the collection cylinder 5 for material feeding.

[0027] The screening cylinder 7 and the collection cylinder 5 are both cylindrical, while the support base 3 and the base 1 are both cuboid. The structure is compact and stable, ensuring the durability and stability of the equipment. A rubber buffer pad 2 is also installed at the bottom of the base 1 to reduce vibration and noise.

[0028] The actual usage process of this device is as follows:

[0029] I. Preparation Stage

[0030] Before using the equipment, all parts of the equipment need to be inspected to ensure that they are in good condition and free from damage or looseness.

[0031] Prepare the recycled steel to be processed and classify and pre-treat it as required for subsequent screening and magnetic separation.

[0032] II. Start-up Phase

[0033] Turn on the power to the geared motor and start it. The motor shaft of the geared motor will drive the screening cylinder 7 to rotate back and forth through the transmission wheel (such as first rotating 90° clockwise, then 90° counterclockwise, and so on). Of course, the speed and direction of the geared motor can also be adjusted as needed.

[0034] Once the screening cylinder 7 starts rotating, the power supply to the electromagnet 8 is turned on to generate a magnetic field. In this way, when steel containing iron passes through the magnetic separation zone, it will be attracted by the electromagnet 8, thus achieving magnetic separation.

[0035] III. Screening and Magnetic Separation Stage

[0036] The recycled steel to be processed (generally crushed steel scraps) is fed into the equipment from the input end of the screening cylinder 7. The steel will enter the interior of the screening cylinder 7 as it rotates.

[0037] Inside the screening cylinder 7, steel containing iron is attracted by electromagnet 8 when it passes through the magnetic separation zone, while the remaining steel is not attracted and moves to the screening hole 12 as the screening cylinder 7 rotates. It then passes through the screening hole 12 and leaves the screening cylinder 7 into the collection cylinder 5, thus achieving the screening and magnetic separation of steel.

[0038] IV. Collection and Processing Stage

[0039] After a certain period of screening and magnetic separation, the power to the hydraulic cylinder is turned on, the hydraulic cylinder is started, and its hydraulic rod is extended, which drives the support roller to move on the base 1, thereby causing the support seat 3 to tilt towards the output end side, and outputting the steel in the collection cylinder 5 into the collection tank I9.

[0040] Then, the electromagnet 8 is turned off, releasing the iron-containing steel, causing it to detach from the screening cylinder 7 and fall into the collection tank II 10;

[0041] The collected steel is then further processed.

[0042] V. Shutdown and Cleanup Phase

[0043] When the equipment is finished using it, it is necessary to shut it down according to the prescribed procedure. First, turn off the power to electromagnet 8, then stop the operation of the geared motor, and finally turn off the power to the hydraulic cylinder.

[0044] Clean and maintain the equipment to ensure that all parts are clean and tidy, especially cleaning the residue inside the screening cylinder 7 and the collection cylinder 5, and checking the wear of each part.

Claims

1. A magnetic separation device for screening recycled steel, characterized in that: The device includes a base and a support seat horizontally hinged to the base. Drive devices for lateral left-right swinging of the support seat are installed on both sides of the base. Support rollers that cooperate with the support seat are installed at the drive end of the drive devices. A horizontally arranged collecting cylinder and a screening cylinder horizontally penetrating the collecting cylinder are installed on the support seat. Both sides of the screening cylinder are located on the outer side of the collecting cylinder and are mounted on the support seat via bearings and bearing seats. A power device for reciprocating rotation of the screening cylinder is also installed on the support seat. A magnetic separation zone is located at the bottom of the screening cylinder. Electromagnets for magnetic separation of steel are installed on the outer side of the screening cylinder in the magnetic separation zone. Screening holes for sieving the steel are provided on the screening cylinders on both sides of the magnetic separation zone.

2. The recycled steel screening and magnetic separation equipment according to claim 1, characterized in that: The driving device is a hydraulic cylinder, which is vertically mounted on the base, and the supporting rollers are mounted on the top of the hydraulic rod of the hydraulic cylinder.

3. The recycled steel screening and magnetic separation equipment according to claim 1, characterized in that: The power unit is a geared motor, which is mounted horizontally on a support base. The motor shaft of the geared motor is connected to the screening cylinder via a transmission wheel.

4. The recycled steel screening and magnetic separation equipment according to claim 1, characterized in that: One end of the screening cylinder is configured as an input end for steel input, and the other end of the screening cylinder is configured as an output end for steel output. On the base on the output end side, there are also collection groove I for cooperating with the collection cylinder and collection groove II for cooperating with the screening cylinder.

5. The magnetic separation equipment for screening recycled steel according to claim 1 or 4, characterized in that: Arc-shaped guide plates are installed on both the collection cylinder and the screening cylinder at the output end.

6. The recycled steel screening and magnetic separation equipment according to claim 1, characterized in that: The screening cylinder and the collecting cylinder are both cylindrical, while the support base and the base are both cuboid.

7. The magnetic separation equipment for screening recycled steel according to claim 1 or 6, characterized in that: A rubber cushioning pad is also installed at the bottom of the base.