Secondary separation device for steel slag recovery

Abstract

The utility model discloses a secondary separation device for steel slag recovery, which belongs to the technical field of steel slag recovery and particularly comprises a conveying frame and a conveying belt body, the conveying frame is in transmission connection with the conveying belt body, and primary magnetic separation equipment is arranged on the conveying frame and positioned above the conveying belt body; the secondary magnetic separation equipment is used for adsorbing magnetic materials in the materials again, the secondary magnetic separation equipment is arranged on the conveying frame and located below the feeding end and the discharging end of the conveying belt body, the secondary magnetic separation equipment comprises a mounting frame, a standing inner barrel and a rotating outer barrel, the mounting frame is fixedly connected with the standing inner barrel, and the rotating outer barrel is fixedly connected with the standing inner barrel. The outer side of the standing inner cylinder is rotationally connected with a rotating outer cylinder; by means of the secondary magnetic separation device, materials falling from the conveying belt body can be subjected to magnetic material adsorption again, the removal effect on the magnetic materials is improved, subsequent use of the magnetic materials or non-magnetic materials is facilitated, and waste of the magnetic materials is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of steel slag recycling technology, specifically relating to a secondary separation device for steel slag recycling. Background Technology

[0002] Metallurgical steel slag is a solid waste discharged during the steelmaking process. It mainly consists of various oxides formed by the oxidation of impurities such as silicon, manganese, phosphorus, and sulfur in pig iron during smelting, as well as salts formed by the reaction of these oxides with solvents. Steel slag can be comprehensively utilized as a secondary resource, mainly through two approaches: one is to recycle it within the plant as a smelting solvent, which can not only replace limestone but also recover large amounts of metallic iron and other useful elements; the other is to use it as a raw material for manufacturing road construction materials, building materials, or agricultural fertilizers.

[0003] In existing steel slag separation equipment, a magnetic separator is generally installed above the conveyor to adsorb metals in the material and automatically unload the adsorbed metals. However, since the material is laid flat on the conveyor, the magnetic separator may miss some magnetic materials when adsorbing them, resulting in non-magnetic materials still containing magnetic materials, which is inconvenient for subsequent use and also wastes magnetic materials. Therefore, there is a need to provide a secondary separation device for steel slag recycling to solve the above-mentioned technical problems. Utility Model Content

[0004] To address the problems mentioned in the background section, this invention provides a secondary separation device for steel slag recycling. This device is capable of secondary adsorption of magnetic materials from the slag, improving the removal efficiency of magnetic materials and enabling the recycling and reuse of these materials.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a secondary separation device for steel slag recycling, comprising a conveyor frame and a conveyor belt body, wherein the conveyor frame is connected to the conveyor belt body via a transmission, and a primary magnetic separator is provided on the conveyor frame above the conveyor belt body for adsorbing magnetic materials in the material.

[0006] The feature is that it further includes a secondary magnetic separator for re-adsorbing magnetic materials in the material. The secondary magnetic separator is set on the conveyor frame and located below the loading and unloading ends of the conveyor belt body. The secondary magnetic separator includes a mounting frame, a stationary inner cylinder and a rotating outer cylinder. The stationary inner cylinder is fixedly connected to the mounting frame, and the rotating outer cylinder is rotatably connected to the outside of the stationary inner cylinder. Magnetic and non-magnetic areas are provided on the outer surface of the stationary inner cylinder.

[0007] Preferably, the 180° region along the axial direction on the outer surface of the stationary inner cylinder is a magnetic region, and permanent magnets are arrayed on the magnetic region of the stationary inner cylinder, while the remaining region on the outer surface of the stationary inner cylinder is a non-magnetic region.

[0008] Preferably, both ends of the stationary inner cylinder are fixedly connected to the mounting frame via a fixed shaft, and both ends of the rotating outer cylinder are fixedly connected to a rotating sleeve. The rotating sleeve is coaxially arranged with the fixed shaft and rotatably sleeved on the fixed shaft.

[0009] Preferably, a geared motor is fixedly connected to the mounting bracket, and the output shaft of the geared motor is connected to one of the rotating sleeves via a transmission connection.

[0010] Preferably, a baffle is fixedly connected to the outside of the conveyor frame at the material unloading end of the conveyor belt body, and the bottom end of the baffle extends downward to the top of the rotating outer cylinder.

[0011] Preferably, a guide hopper is fixedly connected to the mounting frame below the rotating outer cylinder.

[0012] Preferably, it also includes a scraping mechanism for cleaning metal that cannot be removed from the surface of the rotating outer cylinder. The scraping mechanism includes a cleaning frame and a cleaning plate. The cleaning frame is located on the outside of the rotating outer cylinder and is fixedly connected to the mounting frame. The cleaning plate is rotatably connected to the side of the cleaning frame that is directly opposite to the rotating outer cylinder. The cleaning plate is fitted to the outer surface of the rotating outer cylinder.

[0013] Preferably, a spring damper is further provided between the cleaning frame and the cleaning plate, with one end of the spring damper hinged to the cleaning frame and the other end of the spring damper hinged to the cleaning plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention utilizes a two-stage magnetic separator to re-adsorb magnetic materials onto the materials falling from the conveyor belt. Non-magnetic materials fall freely due to gravity, while magnetic materials rotate with the outer cylinder. When the outer cylinder reaches the non-magnetic area of ​​the stationary inner cylinder, the magnetic materials are thrown off due to inertia, thus improving the removal efficiency of magnetic materials. This facilitates the subsequent use of either magnetic or non-magnetic materials and avoids waste of magnetic materials. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the main structure of this utility model;

[0019] Figure 3 This is a three-dimensional structural diagram of the two-stage magnetic separation device of this utility model;

[0020] Figure 4 This is a cross-sectional structural schematic diagram of the two-stage magnetic separation device of this utility model;

[0021] Figure 5 This is a cross-sectional structural schematic diagram of the two-stage magnetic separation device of this utility model;

[0022] In the diagram: 1. Conveyor frame; 2. Conveyor belt body; 3. Mounting frame; 4. Stationary inner cylinder; 5. Rotating outer cylinder; 6. Permanent magnet; 7. Fixed shaft; 8. Rotating sleeve; 9. Gear motor; 10. Material stop cover; 11. Guide hopper; 12. Cleaning frame; 13. Cleaning plate; 14. Spring damper. 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] Example 1

[0025] Please see Figure 1-5 This embodiment provides the following technical solution: a secondary separation device for steel slag recycling, including a conveyor frame 1 and a conveyor belt body 2. The conveyor frame 1 is connected to the conveyor belt body 2. A primary magnetic separator is installed on the conveyor frame 1 above the conveyor belt body 2 to adsorb magnetic materials in the material. In some embodiments, the primary magnetic separator can be a conveyor belt-suspended self-unloading strong magnetic separator or a magnetic separator roller. During the process of conveying the material by the conveyor belt body 2, the magnetic materials in the material on the conveyor belt body 2 can be adsorbed and removed.

[0026] It also includes a secondary magnetic separator for re-adsorbing magnetic materials in the material. The secondary magnetic separator is set on the conveyor frame 1 and located below the loading and unloading ends of the conveyor belt body 2. The secondary magnetic separator includes a mounting frame 3, a stationary inner cylinder 4 and a rotating outer cylinder 5. The stationary inner cylinder 4 is fixedly connected to the mounting frame 3, and the rotating outer cylinder 5 is rotatably connected to the outside of the stationary inner cylinder 4. Magnetic and non-magnetic areas are provided on the outer surface of the stationary inner cylinder 4.

[0027] In some embodiments, the secondary magnetic separator can be used to re-adsorb the magnetic materials falling on the conveyor belt body 2. Non-magnetic materials will fall freely due to gravity, while magnetic materials will rotate with the outer cylinder 5. When the outer cylinder 5 rotates to the non-magnetic area of ​​the inner cylinder 4, it will be thrown off the outer cylinder 5 due to inertia, which improves the removal effect of magnetic materials and facilitates the subsequent use of magnetic or non-magnetic materials, avoiding the waste of magnetic materials.

[0028] In some embodiments, the 180° region along the axial direction on the outer surface of the stationary inner cylinder 4 is a magnetic region, and permanent magnets 6 are arrayed on the magnetic region of the stationary inner cylinder 4. The remaining region on the outer surface of the stationary inner cylinder 4 is a non-magnetic region. Through the magnetic separation region and the non-magnetic separation region, when the rotating outer cylinder 5 rotates to the magnetic region, the magnetic material in the material can be adsorbed onto the surface of the rotating outer cylinder 5. When the rotating outer cylinder 5 rotates to the non-magnetic region, the magnetic material adsorbed on the rotating outer cylinder 5 will be thrown off the rotating outer cylinder 5 due to inertia.

[0029] like Figure 4 As shown, the two ends of the stationary inner cylinder 4 are fixedly connected to the mounting frame 3 via fixed shafts 7. The two ends of the rotating outer cylinder 5 are fixedly connected to rotating sleeves 8. The rotating sleeves 8 are coaxially arranged with the fixed shafts 7 and rotatedly mounted on the fixed shafts 7. A reduction motor 9 is fixedly connected to the mounting frame 3. The output shaft of the reduction motor 9 is connected to one of the rotating sleeves 8 for transmission. Through the fixed shafts 7 and rotating sleeves, the stationary inner cylinder 4 can be fixed on the mounting frame 3, while the rotating outer cylinder 5 rotates relative to the stationary inner cylinder 4.

[0030] A baffle 10 is fixedly connected to the outside of the material feeding end of the conveyor belt body 2 on the conveyor frame 1. The bottom end of the baffle 10 extends downward to the top of the rotating outer cylinder 5. The baffle 10 can block the material falling from the conveyor belt body 2, making it easier for the material to fall on the outer surface of the rotating outer cylinder 5.

[0031] A guide hopper 11 is fixedly connected to the mounting frame 3 below the rotating outer cylinder 5. The guide hopper 11 can guide the free-falling non-magnetic materials, thereby facilitating the collection of non-magnetic materials.

[0032] Example 2

[0033] like Figure 2 and Figure 4As shown, it also includes a scraping mechanism for cleaning metal that cannot be detached from the surface of the rotating outer cylinder 5. The scraping mechanism includes a cleaning frame 12 and a cleaning plate 13. The cleaning frame 12 is located on the outside of the rotating outer cylinder 5 and is fixedly connected to the mounting frame 3. The cleaning plate 13 is rotatably connected to the bottom left side of the cleaning frame 12. The cleaning plate 13 is fitted to the outer surface of the rotating outer cylinder 5. Through the cleaning frame 12 and the cleaning plate 13, magnetic materials that cannot be thrown out due to gravity can be cleaned, avoiding the magnetic materials from always adhering to the surface of the rotating outer cylinder 5, which would affect the subsequent adsorption and detachment of magnetic materials from the material.

[0034] A spring damper 14 is also provided between the cleaning frame 12 and the cleaning plate 13. One end of the spring damper 14 is hinged to the cleaning frame 12, and the other end of the spring damper 14 is hinged to the cleaning plate 13. The spring damper 14 can buffer the cleaning end of the cleaning plate 13, so that the cleaning end of the cleaning plate 13 moves away from the rotating outer cylinder 5 and then returns to its original position. This avoids the cleaning plate 13 from being in hard contact with the magnetic material on the rotating outer cylinder 5 for a long time, and improves the service life of the rotating outer cylinder 5 and the cleaning plate 13.

[0035] The working principle of this utility model is as follows: When in use, the material to be magnetically separated falls from the loading end of the conveyor belt body 2. The conveyor belt body 2 is started to transport the material, and then the first magnetic separator is started to adsorb and remove the magnetic material in the material. The removed material moves with the conveyor belt body 2 until it falls from the unloading end of the conveyor belt body 2. At the same time, the permanent magnet on the stationary inner cylinder 4 is activated, and the geared motor 9 drives the rotating outer cylinder 5 to rotate. During the rotation of the rotating outer cylinder 5, non-magnetic material falls onto the outer edge of the left side of the rotating outer cylinder 5. Due to gravity, the non-magnetic material falls onto the guide hopper 11. When the rotating outer cylinder 5 rotates to the magnetic area on the stationary inner cylinder 4, it will adsorb the magnetic material in the falling material. When the rotating outer cylinder 5 rotates to the non-magnetic area on the stationary inner cylinder 4, the magnetic material adsorbed on the surface of the rotating outer cylinder 5 will be thrown off the rotating outer cylinder 5 due to inertia, thereby completing the separation of magnetic and non-magnetic materials in the material.

[0036] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A secondary separation device for steel slag recovery, comprising a conveying frame (1) and a conveying belt body (2), the conveying belt body (2) being drivingly connected to the conveying frame (1), a primary magnetic separation device being arranged above the conveying belt body (2) on the conveying frame (1) and used for adsorbing magnetic materials in the materials; characterized in that Further comprising a secondary magnetic separation device used for re-adsorbing magnetic materials in the materials, the secondary magnetic separation device being arranged on the conveying frame (1) and below the material discharging end of the conveying belt body (2), the secondary magnetic separation device comprising a mounting frame (3), a stationary inner cylinder (4) and a rotating outer cylinder (5), the stationary inner cylinder (4) being fixedly connected to the mounting frame (3), the rotating outer cylinder (5) being rotatably connected to the outer side of the stationary inner cylinder (4), and the outer surface of the stationary inner cylinder (4) being provided with a magnetic area and a non-magnetic area.

2. The secondary separation device for steel slag recovery according to claim 1, characterized in that: The outer surface of the stationary inner cylinder (4) in a 180° area along the axial direction is the magnetic area, the stationary inner cylinder (4) being provided with permanent magnets (6) arranged in an array on the magnetic area, and the remaining area on the outer surface of the stationary inner cylinder (4) being the non-magnetic area.

3. The secondary separation device for steel slag recovery according to claim 1, characterized in that: Both ends of the stationary inner cylinder (4) are fixedly connected to the mounting frame (3) through a fixed shaft (7), both ends of the rotating outer cylinder (5) are fixedly connected with rotating sleeves (8), and the rotating sleeves (8) are coaxially arranged with the fixed shaft (7) and rotatably sleeved on the fixed shaft (7).

4. The secondary separation device for steel slag recovery according to claim 3, characterized in that: A reduction motor (9) is fixedly connected to the mounting frame (3), and an output shaft of the reduction motor (9) is drivingly connected with one of the rotating sleeves (8).

5. The secondary separation device for steel slag recovery according to claim 4, characterized in that: A material blocking cover (10) is fixedly connected to the outer side of the conveying frame (1) at the material discharging end of the conveying belt body (2), and the bottom end of the material blocking cover (10) extends downward to above the rotating outer cylinder (5).

6. The secondary separation device for steel slag recovery according to claim 4, characterized in that: A material guide hopper (11) is fixedly connected to the mounting frame (3) below the rotating outer cylinder (5).

7. The secondary separation device for steel slag recovery according to claim 1, characterized in that: Further comprising a material scraping mechanism used for cleaning the metal that cannot be separated from the surface of the rotating outer cylinder (5), the material scraping mechanism comprising a cleaning frame (12) and a cleaning plate (13), the cleaning frame (12) being arranged on the outer side of the rotating outer cylinder (5) and fixedly connected with the mounting frame (3), the cleaning plate (13) being rotatably connected to the side of the cleaning frame (12) opposite to the rotating outer cylinder (5), and the cleaning plate (13) being arranged in abutment with the outer surface of the rotating outer cylinder (5).

8. The secondary separation device for steel slag recovery according to claim 7, characterized in that: Further comprising a spring damper (14) arranged between the cleaning frame (12) and the cleaning plate (13), one end of the spring damper (14) being hinged to the cleaning frame (12), and the other end of the spring damper (14) being hinged to the cleaning plate (13).

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