Steel slag magnetic separation device

Abstract

The steel slag magnetic separation device comprises a magnetic separation barrel, the magnetic separation barrel is detachably connected with a barrel cover, the magnetic separation barrel is connected with a first driver for driving the magnetic separation barrel to rotate, an opening is formed in the magnetic separation barrel, a stepped annular face is arranged at the bottom of the magnetic separation barrel, an electromagnet is installed at the bottom of the magnetic separation barrel, and the magnetic separation barrel is detachably connected with an installation box. The mounting box is connected with a second driver, the second driver is connected with a magnetic attraction shaft, the magnetic attraction shaft is connected with a second driver for driving the magnetic attraction shaft to move in a stepped curve mode, the magnetic attraction shaft is connected with a magnetic attraction block, the magnetic attraction block is close to the bottom of the magnetic separation barrel, and electromagnets are installed on the inner wall of the magnetic separation barrel and the bottom of the magnetic separation barrel; the magnetism of the bottom and the side wall of the magnetic separation barrel is smaller than that of the magnetic attraction block. By means of the device, iron materials in the magnetic separation barrel can be conveniently collected, and the possibility that large steel slag collides with the iron materials is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of metallurgical engineering, and in particular to a steel slag magnetic separation device. Background Art

[0002] The magnetic separation technology of steel slag originates from the environmental protection and resource recycling needs in the steel production process. In the steelmaking process, waste slag containing iron and other metal components, namely steel slag, will be formed after the charge is melted. These steel slags not only occupy a large amount of land resources, but also may pollute the environment. In order to effectively utilize these waste resources and reduce environmental pressure at the same time, magnetic separation technology came into being. This technology is based on the magnetic difference of different substances in steel slag, and separates magnetic iron materials from other non-magnetic substances through magnetic force. Specifically, the magnetic separation process usually includes two methods, dry and wet. Among them, dry magnetic separation is suitable for separating larger particles of iron materials, while wet magnetic separation is more suitable for efficient recovery of fine particles. Through this technology, not only can the recycling rate of iron resources be greatly improved and the demand for raw materials be reduced, but also the impact of the steel industry on the environment can be significantly reduced, and the recycling of resources and green production can be promoted. Therefore, the magnetic separation technology of steel slag plays an increasingly important role in the modern steel industry and has become one of the important means to promote the sustainable development of the industry.

[0003] Magnetic separation of steel slag is an important resource recovery technology in the steel industry. Magnetic separation equipment is used to separate the ferromagnetic materials in steel slag to achieve resource recycling. The magnetic separation process usually includes the following steps: crushing, screening, magnetic separation and product processing of steel slag. During the magnetic separation stage, the steel slag passes through a magnetic drum or a magnetic separator, and the ferromagnetic materials therein are adsorbed on the surface of the magnetic drum, while the non-magnetic materials are separated out. However, steel slag usually has a high speed and kinetic energy during magnetic separation. These high-speed moving steel slag particles will have a strong impact on the ferrous materials that have been adsorbed on the magnetic drum, causing some of the ferrous materials to be knocked off and re-mixed into the steel slag. In addition, the ferrous materials magnetically separated in the magnetic separation barrel are also difficult to collect and remove. Summary of the invention

[0004] The present invention aims to provide a steel slag magnetic separation device to solve the problem in the prior art that the iron material after magnetic separation is difficult to collect and remove.

[0005] The slag magnetic separation device in this scheme includes a magnetic separation barrel, which is detachably connected to a barrel cover, the magnetic separation barrel is connected to a first driver for driving it to rotate, an opening is provided on the magnetic separation barrel, a stepped annular surface is provided at the bottom of the magnetic separation barrel, an electromagnet is installed at the bottom of the magnetic separation barrel, the magnetic separation barrel is detachably connected to a mounting box, the mounting box is connected to a second driver, the second driver is connected to a magnetic suction shaft, the magnetic suction shaft is connected to a second driver for driving it to move in a stepped curve, the magnetic suction shaft is connected to a magnetic suction block, the magnetic suction block is close to the bottom of the magnetic separation barrel, the inner wall of the magnetic separation barrel, the bottom installation of the magnetic separation barrel, the magnetic suction shaft and the magnetic suction block are all connected to electromagnets, and the magnetism of the bottom and side walls of the magnetic separation barrel is smaller than the magnetism of the magnetic suction block.

[0006] The working principle and beneficial effects of this solution are as follows: when in use, the magnetic separation barrel is placed horizontally, and large pieces of steel slag are placed into the magnetic separation barrel from the opening, and then the barrel cover is closed, the barrel cover is fixed to the magnetic separation barrel, and the first driver is turned on. The first driver drives the magnetic separation barrel to rotate, and the magnetic separation barrel rotates to magnetically separate the large pieces of steel slag. The iron material will be magnetically attracted by the inner wall of the magnetic separation barrel and the bottom of the magnetic separation barrel. Since the steel slag is a large piece of steel slag, the iron material will be magnetically attracted to the stepped annular surface during magnetic separation, and it is difficult for the large piece of steel slag to knock the iron material in the stepped annular surface off. After the magnetic separation is completed, the magnetic separation is closed. Close the first drive, open the barrel cover, pour out the large pieces of slag, fix the installation box at the opening, place the magnetic shaft in the magnetic separation barrel, turn on the second drive, the second drive drives the stepped curved surface of the magnetic shaft to rotate, the magnetic block on the magnetic shaft rotates with the magnetic shaft, the magnetic block approaches the stepped annular surface at the bottom of the magnetic separation barrel, the magnetic block moves along the stepped curve of the cylindrical surface of the magnetic shaft, the magnetic block cooperates with the bottom of the magnetic separation barrel, the magnetic block absorbs the iron material at the annular surface, and the magnetic shaft will magnetically attract the iron material on the inner wall of the magnetic separation barrel to the magnetic shaft, and then remove the installation box. After the stepped annular surface at the bottom of the magnetic separation barrel attracts the iron material, it is difficult for the large pieces of slag to knock down the iron material in the stepped annular surface, so that the iron material is not knocked down, and then the magnetic shaft and the magnetic block are used to magnetically attract the iron material to the magnetic shaft and the magnetic block.

[0007] Furthermore, the inner wall and the inner bottom of the magnetic separation barrel are evenly distributed with concave holes. The iron material is magnetically attracted into the concave holes, and the large pieces of steel slag cannot hit the concave holes, thus preventing the steel slag from hitting the iron material.

[0008] Furthermore, it also includes a base plate, on which a support rod and two support seats are fixedly connected, the two support seats are used to support the magnetic separation barrel, the magnetic separation barrel is slidably connected to the support seats, the first driver is a driving motor, and the housing of the driving motor is fixedly connected to the support rod. The support seat is used to support the magnetic separation barrel so that the magnetic separation barrel rotates smoothly.

[0009] Furthermore, a cylinder is provided on one side of the base plate close to the driving motor, and a base is provided on the other end of the base plate. When the magnetic separation of large pieces of slag is completed, the cylinder is started to raise the side of the magnetic separation barrel close to the motor, and the other side of the magnetic separation barrel will tilt downward, and the large pieces of slag will fall from the opening.

[0010] Furthermore, the second driver includes a driving gear, which is connected to a rotating drum, which is connected to a servo motor that drives it to rotate. An annular groove is provided on the outside of the rotating drum, and the annular groove is stepped. The driving gear is meshed with a driven gear, and the driven gear is fixedly connected to a supporting shaft. A limit bar is provided on the supporting shaft. The magnetic shaft is sleeved and slidably connected to the supporting shaft. The limit bar limits the axial position of the magnetic shaft. A limit groove is provided on the magnetic shaft. A mounting plate is also provided on the mounting box. The mounting plate is rotatably connected to a "U"-shaped connecting rod. Both ends of the connecting rod are connected to limit blocks, and the two limit blocks are slidably connected to the limit groove and the annular groove respectively. The servo motor drives the drum to rotate, and the rotation of the drum drives the magnetic shaft limited on the drum to rotate. After the drum rotates, the annular groove rotates accordingly, driving the limit block to move laterally, and the connecting rod deflects accordingly, driving the limit block slidably connected in the limit groove to move laterally, thereby driving the magnetic shaft to move laterally. This movement mode matches the annular groove and is stepped, so that it can match the bottom of the magnetic separation barrel, which is also stepped, and finally realizes the stepped rotation of the magnetic shaft, thereby moving the stepped surface of the cylindrical surface of the magnetic block.

[0011] Furthermore, a magnetic plate is provided in a stepped ring on the magnetic shaft. As the magnetic shaft rotates, the magnetic plate rotates accordingly, and the iron material on the inner wall of the magnetic separation barrel can be scraped off, and the iron material can be magnetically attracted by the magnetic shaft as it rotates. Alternatively, the electromagnet on the inner wall of the magnetic separation barrel can be closed, so that the iron material falls to the inner wall below the magnetic separation barrel. As the magnetic plate rotates, the iron material at the bottom can be smoothly scraped and deflected by the magnetic plate and moved to the magnetic shaft, so that the magnetic shaft can magnetically attract the iron material. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the steel slag magnetic separation device of the present invention;

[0013] Figure 2 for Figure 1 A right side cross-sectional view of the middle magnetic separation barrel;

[0014] Figure 3 for Figure 1 Left view of the central magnetic shaft and magnetic plate. DETAILED DESCRIPTION

[0015] The following is a further detailed description through specific implementation methods:

[0016] The figure marks in the drawings of the specification include: base plate 1, cylinder 2, base 3, support rod 4, drive motor 5, support seat 6, magnetic separation barrel 7, bottom of magnetic separation barrel 8, magnetic block 9, connecting rod 10, magnetic shaft 11, magnetic plate 12, installation box 13, limit groove 14, support shaft 15, limit bar 16, driven gear 17, mounting plate 18, connecting rod 19, limit block 20, driving gear 21, annular groove 22.

[0017] The embodiment is basically as shown in the attached Figure 1 , Figure 2 and Figure 3 As shown: a slag magnetic separation device comprises a base plate 1 and a magnetic separation barrel 7, a support rod 4 and two support seats 6 are fixedly connected to the base plate 1, the two support seats 6 are used to support the magnetic separation barrel 7, the magnetic separation barrel 7 is slidably connected to the support seats 6, a cylinder 2 is provided on one side of the base plate 1 close to the driving motor 5, a base 3 is provided on the other end of the base plate 1, recessed holes are evenly distributed on the inner wall and the bottom of the magnetic separation barrel 7, the magnetic separation barrel 7 is bolted to a barrel cover, and the magnetic separation barrel 7 is connected to a first driver for driving the rotation thereof;

[0018] The first driver is a driving motor 5, the housing of the driving motor 5 is fixedly connected to the support rod 4, the magnetic separation barrel 7 is provided with an opening, the bottom 8 of the magnetic separation barrel is provided with a stepped annular surface, the bottom 8 of the magnetic separation barrel is installed with an electromagnet, the magnetic separation barrel 7 is bolted with a mounting box, the mounting box is connected with a second driver, the second driver is connected with a magnetic suction shaft 11, a magnetic suction plate 12 is provided on the magnetic suction shaft 11 in a stepped ring shape, and the magnetic suction shaft 11 is connected with a second driver that drives the stepped curve movement thereof;

[0019] The second driver includes a driving gear 21, which is connected to a rotating drum, which is connected to a servo motor that drives it to rotate. An annular groove 22 is provided on the outside of the rotating drum, and the annular groove 22 is stepped. The driving gear 21 is meshed with a driven gear 17, and the driven gear 17 is fixedly connected to a support shaft 15. A limit bar 16 is provided on the support shaft 15. The magnetic shaft 11 is sleeved and slidably connected to the support shaft 15. The limit bar 16 axially limits the magnetic shaft 11. A limit groove 14 is provided on the magnetic shaft 11. A mounting plate 18 is also provided on the mounting box 13. The mounting plate 18 rotates A "U"-shaped connecting rod 19 is connected, and both ends of the connecting rod 19 are connected to limit blocks 20. The connecting rod 19 is inclined close to the limit groove 14 and the annular groove 22, and the two limit blocks 20 are respectively slidably connected in the limit groove 14 and the annular groove 22; the magnetic suction shaft 11 is connected to the connecting rod 10, and the connecting rod 10 is fixedly connected to the magnetic suction block 9, and the magnetic suction block 9 is close to the bottom 8 of the magnetic separation barrel, the inner wall of the magnetic separation barrel 7, the bottom 8 of the magnetic separation barrel are installed, the magnetic suction shaft 11, the magnetic suction plate 12 and the magnetic suction block 9 are all connected with electromagnets, and the magnetism of the bottom 8 and the side wall of the magnetic separation barrel is less than the magnetism of the magnetic suction block 9.

[0020] When in use, the magnetic separation barrel 7 is placed horizontally, and large pieces of slag are put into the magnetic separation barrel 7 from the opening, and then the barrel cover is covered, the barrel cover and the magnetic separation barrel 7 are fixed, and the driving motor 5 is turned on. The driving motor 5 drives the magnetic separation barrel 7 to rotate, and the magnetic separation barrel 7 rotates to magnetically separate the large pieces of slag. Since the inner wall and the inner bottom of the magnetic separation barrel 7 are provided with concave holes, the iron material is magnetically attracted to the concave holes, and the large pieces of slag cannot hit the iron material in the concave holes, so that the slag can be prevented from hitting the iron material. Since the steel slag is a large piece of steel slag, during magnetic separation, the iron material is magnetically attracted to the stepped annular surface, and the large pieces of steel slag are also difficult to knock the iron material in the stepped annular surface off. After the magnetic separation is completed, the driving motor 5 is turned off, the barrel cover is opened, and the cylinder 2 is started to lift the side close to the motor of the magnetic separation barrel 7, and the other side of the magnetic separation barrel 7 will tilt downward, and the large pieces of slag will fall from the opening. Then fix the installation box at the opening, place the magnetic shaft 11 in the magnetic separation barrel 7, turn on the servo motor to drive the drum to rotate, and the rotation of the drum drives the magnetic shaft 11 limited on the drum to rotate. After the drum rotates, the annular groove 22 rotates accordingly, driving the limit block 20 to move laterally, and the connecting rod 19 deflects accordingly, driving the limit block 20 slidably connected in the limit groove to move laterally, thereby driving the magnetic shaft 11 to move laterally. This movement mode matches the annular groove 22 and is stepped, so that it can match the bottom 8 of the magnetic separation barrel, which is all stepped. The magnetic block 9 on the magnetic shaft 11 rotates with the magnetic shaft 11, and the magnetic block 9 is close to the stepped annular surface at the bottom of the magnetic separation barrel 7. The magnetic block 9 moves along the cylindrical step curve of the magnetic shaft 11, and the magnetic block 9 cooperates with the bottom 8 of the magnetic separation barrel, and the magnetic block 9 absorbs the iron material at the annular surface position. As the magnetic shaft 11 rotates, the magnetic plate 12 rotates accordingly, and the iron material on the inner wall of the magnetic separation barrel 7 can be scraped off. As it rotates, it is magnetically attracted by the magnetic shaft 11. You can also choose to close the electromagnet on the inner wall of the magnetic separation barrel 7 to make the iron material fall to the inner wall below the magnetic separation barrel 7. As the magnetic plate 12 rotates, the iron material at the bottom can be smoothly scraped and deflected by the magnetic plate 12 and moved to the magnetic shaft 11, which is convenient for the magnetic shaft 11 to magnetically attract the iron material, and then the installation box can be removed.

[0021] The above is only an embodiment of the present invention, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. Steel slag magnetic separation device, characterized by: It includes a magnetic separation barrel, which is detachably connected to a barrel cover, the magnetic separation barrel is connected to a first driver for driving the magnetic separation barrel to rotate, an opening is provided on the magnetic separation barrel, a stepped annular surface is provided at the bottom of the magnetic separation barrel, an electromagnet is installed at the bottom of the magnetic separation barrel, the magnetic separation barrel is detachably connected to a mounting box, the mounting box is connected to a second driver, the second driver is connected to a magnetic suction shaft, the magnetic suction shaft is connected to a second driver for driving the stepped curve movement, the magnetic suction shaft is connected to a magnetic suction block, the magnetic suction block is close to the bottom of the magnetic separation barrel, the inner wall of the magnetic separation barrel, the bottom installation of the magnetic separation barrel, the magnetic suction shaft and the magnetic suction block are all connected to electromagnets, and the magnetism of the bottom and side walls of the magnetic separation barrel is smaller than the magnetism of the magnetic suction block.

2. The slag magnetic separation device according to claim 1, characterized in that: The inner wall and the inner bottom of the magnetic separation barrel are evenly distributed with concave holes.

3. The slag magnetic separation device according to claim 2, characterized in that: It also includes a base plate, on which a support rod and two support seats are fixedly connected. The two support seats are used to support the magnetic separation barrel. The magnetic separation barrel is slidably connected to the support seats. The first driver is a driving motor, and the housing of the driving motor is fixedly connected to the support rod.

4. The slag magnetic separation device according to claim 3, characterized in that: A cylinder is arranged on one side of the base plate close to the driving motor, and a base is arranged on the other end of the base plate.

5. The slag magnetic separation device according to claim 4, characterized in that: The second driver includes a driving gear, which is connected to a rotating drum, which is connected to a servo motor that drives it to rotate. An annular groove is provided on the outside of the rotating drum, and the annular groove is stepped. The driving gear is meshed with a driven gear, and the driven gear is fixedly connected to a supporting shaft. A limit strip is provided on the supporting shaft. The magnetic shaft is sleeved and slidably connected to the supporting shaft. The limit strip limits the axial position of the magnetic shaft. A limit slot is provided on the magnetic shaft. A mounting plate is also provided on the mounting box. The mounting plate is rotatably connected to a "U"-shaped connecting rod. Both ends of the connecting rod are connected to limit blocks, and the two limit blocks are slidably connected in the limit slot and the annular groove respectively.

6. The slag magnetic separation device according to claim 5, characterized in that: A magnetic plate is provided in a stepped ring on the magnetic shaft.

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