Iron ore magnetic separation equipment for refining fine iron powder

Abstract

The utility model discloses iron ore magnetic separation equipment for refining fine iron powder, and relates to the technical field of iron ore screening equipment, the iron ore magnetic separation equipment comprises a bin body, the top of the bin body is fixedly connected with a feeding bin, the top of the feeding bin is fixedly connected with a vibrating screen device through an opening, and a buffer baffle is fixedly connected in a cavity of the feeding bin. Driving bins are fixedly connected to the two ends of the side wall of the feeding bin, motors are fixedly connected into cavities of the driving bins at the two ends, and magnetic separation roller devices are rotationally connected to the two ends of the side wall of the feeding bin. According to the bin body provided by the utility model, raw materials are dispersed through wind power in the adsorption process on the basis of buffering the raw materials to avoid impact, so that the problems that the adsorbed iron ore particles are easily knocked down from the surface of the magnetic separation equipment due to lack of buffering in the use process of the existing iron ore magnetic separation equipment for refining fine iron powder; and stones which are easily mixed with non-iron ore can also be adsorbed on the magnetic adsorption equipment together.

Description

Technical Field

[0001] This utility model relates to the technical field of iron ore screening equipment, specifically to a magnetic separation device for refining iron concentrate. Background Technology

[0002] Iron ore magnetic separation equipment includes dry magnetic separation equipment, which relies on the magnetic differences of the iron ore itself to separate iron from gangue. It uses rare earth neodymium iron boron magnets and ferrite magnets to form a composite magnetic system, which gives the equipment characteristics such as high magnetic field strength, large depth of action and resistance to demagnetization.

[0003] According to the public announcement (CN211707322U), the title is: "A magnetic separation device for refining iron concentrate from iron ore." The device includes a main body of the magnetic separation equipment, a bottom plate, and a collection device. The main body of the magnetic separation equipment is equipped with a feeding port, etc. This device can improve the accuracy of magnetic separation, reduce the workload of the magnetic separation equipment, prevent the iron ore raw materials from piling up, ensure production quality, and improve production efficiency.

[0004] The above technical solution has the following shortcomings;

[0005] The magnetic separation equipment in the above-mentioned schemes generally lacks an effective buffer mechanism in the feeding stage. When the subsequent raw materials rush into the magnetic separation area at a relatively high speed and with a large impact force, the iron ore particles that have already been adsorbed on the surface of the magnetic separation equipment are easily subjected to direct impact from these new raw materials due to the lack of buffer protection. This impact causes a large number of adsorbed iron ore particles to fall off the surface of the magnetic separation equipment and re-mix into the raw materials. On the one hand, this leads to repeated separation of iron ore, which greatly reduces the working efficiency of the magnetic separation equipment. On the other hand, repeated separation processes may also cause wear and tear on the iron ore particles, affecting the final quality of the iron concentrate. Moreover, during the adsorption process, due to the insufficient precision of the magnetic field distribution and the lack of an auxiliary mechanism for effectively separating magnetic and non-magnetic substances, a large amount of non-iron ore is also adsorbed onto the magnetic adsorption equipment while adsorbing iron ore. The non-iron ore mixed in during the adsorption process not only increases the difficulty and cost of the subsequent iron concentrate purification process and reduces the purification efficiency, but also seriously affects the purity of the iron concentrate. Utility Model Content

[0006] In view of the problems existing in the current magnetic separation equipment for refining iron concentrate, this utility model is proposed.

[0007] Therefore, the purpose of this utility model is to provide a magnetic separation device for iron ore used in refining iron concentrate, which solves the problem that existing magnetic separation devices for iron ore used in refining iron concentrate lack buffering during use, easily knocking off the adsorbed iron ore particles from the surface of the magnetic separation device, and easily adsorbing non-iron ore stones onto the magnetic device.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A magnetic separation device for refining iron concentrate includes a bin body, a feed bin fixedly connected to the top of the bin body, a vibrating screen device fixedly connected to the top of the feed bin through an opening, a buffer baffle fixedly connected inside the feed bin, drive bins fixedly connected to both ends of the side wall of the feed bin, a motor fixedly connected inside the cavity of each drive bin, and a magnetic separation drum device rotatably connected to both ends of the side wall of the feed bin, with one end of each magnetic separation drum device fixedly connected to one end of a motor.

[0010] The feed hopper has a crushed stone collection guide plate fixedly connected between its two ends. Both ends of the feed hopper are provided with iron ore collection troughs. A first conveyor belt is fixedly connected to the bottom of the crushed stone collection guide plate. A second conveyor belt is fixedly connected to the bottom of the feed hopper. A separation blowing plate device is fixedly connected to the cavity of the buffer baffle. Both ends of the feed hopper are fixedly connected with discharge guide plates. The top of the hopper is provided with a power supply mechanism fixedly connected to the separation blowing plate device.

[0011] Preferably, the power supply mechanism includes a fan and a power supply pipe. The fan is fixedly connected to one end of the top of the chamber, the output end of the fan is fixedly connected to the power supply pipe, and the other end of the power supply pipe is fixedly connected to the input end of the separation blower device.

[0012] Preferably, both ends of the magnetic separation roller device include a support plate. The side wall of the support plate is fixedly connected to one side wall of the drive chamber. The other side wall of the support plate is fixedly connected to a magnetic system. The outer wall of the support plate is provided with a sealing rotation groove and is rotatably connected to a roller. One end of the roller passes through the side wall of the drive chamber and is fixedly connected to one end of the motor.

[0013] Preferably, the separating air blowing plate device is an arc-shaped hollow plate, and the bottom arc-shaped surface has multiple air outlet holes.

[0014] Preferably, the surface of the roller is fixedly connected with a plurality of reinforcing protrusions, and the surface of the roller is provided with a plurality of reinforcing adsorption grooves.

[0015] Furthermore, a control display is fixedly connected to the side wall of the chamber, and soft brush plates are fixedly connected to the side walls at both ends of the chamber cavity. The side walls of the soft brush plates at both ends are slidably connected to the corresponding roller surfaces.

[0016] Preferably, the bottom of the compartment is fixedly connected with multiple casters.

[0017] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0018] 1. This utility model utilizes a buffer baffle installed in the feed hopper to effectively slow down the falling speed of iron ore, reduce the risk of adsorbed iron ore particles being knocked off, and improve collection efficiency and stability. At the same time, the crushed stone collection guide plate cooperates with the first conveyor belt and the iron ore collection trough cooperates with the second conveyor belt to realize convenient collection and transportation of impurities and iron ore.

[0019] 2. This utility model utilizes a motor installed at both ends of the magnetic separation drum device to efficiently adsorb iron ore under drive. The separation blowing plate device, under the action of the power supply mechanism composed of a fan and a power supply pipe, blows out airflow to blow away non-iron ore materials, preventing them from being adsorbed by the magnetic attraction equipment and improving the purity of magnetic separation.

[0020] 3. This utility model utilizes a separation blowing plate device consisting of an arc-shaped hollow plate and a bottom air outlet, combined with reinforcing protrusions and reinforcing adsorption grooves on the surface of the roller, to disperse materials through airflow and enhance adsorption force. In addition, the control display facilitates control, the soft brush plate brushes off residual iron ore on the surface of the roller, and the casters facilitate equipment movement. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 2 This is a front sectional view of the present invention;

[0024] Figure 3 This is a side sectional view of the present invention;

[0025] Figure 4 This is a three-dimensional sectional view of the separating air blowing plate device of this utility model.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Bin body; 2. Feed bin; 3. Vibrating screen device; 4. Buffer baffle; 5. Drive bin; 6. Motor; 7. Magnetic separation drum device; 8. Crushed stone collection guide plate; 9. Iron ore collection trough; 10. First conveyor belt; 11. Second conveyor belt; 12. Separating air blowing plate device; 13. Discharge port guide plate; 14. Fan; 15. Power supply pipe; 16. Support plate; 17. Magnetic system; 18. Sealed rotating groove; 19. Drum; 20. Air outlet; 21. Reinforcing protrusion block; 22. Reinforcing adsorption groove; 23. Control display; 24. Soft brush plate; 25. Casters. Detailed Implementation

[0028] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0029] This utility model discloses an iron ore magnetic separation device for refining iron concentrate.

[0030] Example 1

[0031] This utility model provides, for example Figure 1-4 The iron ore magnetic separation equipment for refining iron concentrate shown includes a bin body 1, a feed bin 2 fixedly connected to the top of the bin body 1, a vibrating screen device 3 fixedly connected to the top of the feed bin 2 through an opening, a buffer baffle 4 fixedly connected inside the cavity of the feed bin 2, drive bins 5 fixedly connected to both ends of the side wall of the feed bin 2, a motor 6 fixedly connected inside the cavity of each drive bin 5, and a magnetic separation drum device 7 rotatably connected to both ends of the side wall of the feed bin 2, with one end of each magnetic separation drum device 7 fixedly connected to one end of the motor 6.

[0032] A crushed stone collection guide plate 8 is fixedly connected between the two ends of the cavity of the feeding hopper 2. Iron ore collection troughs 9 are provided at both ends of the cavity of the feeding hopper 2. A first conveyor belt 10 is fixedly connected to the bottom of the cavity of the crushed stone collection guide plate 8, and a second conveyor belt 11 is fixedly connected to the bottom of the cavity of the feeding hopper 2. A separating air blowing plate device 12 is fixedly connected to the cavity of the buffer baffle 4. Discharge guide plates 13 are fixedly connected to both ends of the feeding hopper 2. A power supply mechanism fixedly connected to the separating air blowing plate device 12 is provided at the top of the hopper body 1. Using the buffer baffle 4 installed in the feeding hopper 2, when iron ore falls from the top of the feeding hopper 2 after being screened by the vibrating screen device 3, the buffer baffle 4 can effectively slow down the falling speed of the iron ore, preventing it from impacting the magnetic separation drum device 7 at high speed. Compared with existing iron ore magnetic separation equipment for refining iron concentrate, this greatly reduces the iron ore particles adsorbed on the surface of the magnetic separation equipment due to material impact. The risk of particles being knocked off is reduced, improving the collection efficiency and stability of iron ore particles. The magnetic separation roller device 7 set at both ends can operate efficiently under the drive of the motor 6, using the magnetic field to adsorb iron ore. At the same time, the separating air blowing device 12, under the action of the power supply mechanism, can blow air into the feed bin 2 to blow away non-iron ore mixed in with the iron ore, preventing it from being adsorbed on the magnetic adsorption device. The crushed stone collection guide plate 8 in the feed bin 2 cooperates with the first conveyor belt 10 to quickly collect and transport the screened crushed stone and other impurities. The iron ore collection tank 9 cooperates with the second conveyor belt 11 to facilitate the collection and transportation of the magnetically separated iron ore. This solves the problem that the existing iron ore magnetic separation equipment for refining iron concentrate lacks buffering during use, easily knocking off the adsorbed iron ore particles from the surface of the magnetic separation equipment, and easily adsorbing non-iron ore mixed in with the stone on the magnetic adsorption device.

[0033] Example 2

[0034] In order to provide an air source for the separating air blowing plate device 12, such as Figure 1 and 3 As shown, the power supply mechanism includes a fan 14 and a power supply pipe 15. The fan 14 is fixedly connected to one end of the top of the chamber 1, and the power supply pipe 15 is fixedly connected to the output end of the fan 14. The other end of the power supply pipe 15 is fixedly connected to the input end of the separation air blowing plate device 12. By using the power supply mechanism composed of the fan 14 and the power supply pipe 15, an air source is provided to the separation air blowing plate device 12.

[0035] Example 3

[0036] To separate iron ore from non-iron ores through adsorption, such as Figure 2 and 3As shown, both ends of the magnetic separation drum device 7 include a support plate 16. The side wall of the support plate 16 is fixedly connected to one end of the side wall of the drive chamber 5. The other end of the support plate 16 is fixedly connected to a magnetic system 17. The outer wall of the support plate 16 is provided with a sealing rotation groove 18, and a drum 19 is rotatably connected thereto. One end of the drum 19 passes through the side wall of the drive chamber 5 and is fixedly connected to one end of the motor 6. By using the magnetic separation drum device 7, which is composed of the support plate 16, the magnetic system 17, the sealing rotation groove 18 and the drum 19, iron ore and non-iron ore are adsorbed and separated by the basic working principle under rotation.

[0037] Example 4

[0038] To achieve the air outlet function and enhance the adsorption force on the surface of roller 19, such as Figure 2-4 As shown, the separating air blowing plate device 12 is an arc-shaped hollow plate, and multiple air outlet holes 20 are opened on the bottom arc-shaped surface. Multiple reinforcing protrusions 21 are fixedly connected to the surface of the roller 19, and multiple reinforcing adsorption grooves 22 are opened on the surface of the roller 19. By using the separating air blowing plate device 12, which is an arc-shaped hollow plate with multiple air outlet holes 20 on the bottom arc-shaped surface, it is easy to spray air through the multiple air outlet holes 20 at the bottom. The air source further disperses the iron ore and non-iron ore. By using the multiple reinforcing protrusions 21 and multiple reinforcing adsorption grooves 22, the adsorption force on the surface of the roller 19 is strengthened, which makes it easy to firmly adsorb the iron ore.

[0039] Example 5

[0040] For ease of use, such as Figure 1-3 As shown, a control display 23 is fixedly connected to the side wall of the chamber 1, and soft brush plates 24 are fixedly connected to the side walls at both ends of the chamber 1. The side walls of the soft brush plates 24 at both ends are slidably connected to the surface of the corresponding rollers 19. Multiple casters 25 are fixedly connected to the bottom of the chamber 1. The control display 23 facilitates the control of the device, and the soft brush plates 24 brush off the iron ore on the surface of the rollers 19 at both ends to avoid residual magnetic adsorption of iron ore. The multiple casters 25 facilitate the movement of the device.

[0041] How to use:

[0042] Equipment preparation: Check that all parts of the equipment are securely connected, turn on the power to the motor 6, fan 14 and control display 23, and set the speed of the motor 6, the air force of the fan 14 and other parameters through the control display 23 to adapt to different ore characteristics; use the casters 25 to move the equipment to a suitable working position and fix it.

[0043] Material handling: The iron ore to be refined into iron concentrate is poured into the vibrating screen device 3 at the top of the feed hopper 2. After screening, large particles of impurities are initially removed. The screened ore falls into the feed hopper 2. Under the action of the buffer baffle 4, the falling speed is slowed down to protect the subsequent magnetic separation device. The motor 6 is started to drive the magnetic separation drum device 7 to operate. The magnetic system 17 generates a magnetic field to adsorb the iron ore. At the same time, the blower 14 is started to supply air to the separation blowing plate device 12 through the power supply pipe 15. The airflow is blown out from the bottom air outlet 20 to blow away the non-iron ore material, realizing the synchronization of magnetic separation and air separation.

[0044] Material collection: The screened gravel and other impurities fall onto the gravel collection guide plate 8 and are transported to the designated position by the first conveyor belt 10. The iron ore adsorbed on the surface of the drum 19 is brushed off by the soft brush plate 24 as the drum rotates to the bottom and falls into the iron ore collection tank 9. It is then transported by the second conveyor belt 11 and the discharge guide plate 13 guides the material to be discharged. The whole process is monitored and adjusted by the control display 23.

[0045] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A magnetic separation plant for beneficiating iron ore fines from iron ore, comprising a housing (1), characterised in that, The top of the bin body (1) is fixedly connected with a feeding bin (2), the top of the feeding bin (2) is fixedly connected with a vibrating screen device (3) through an opening, the cavity of the feeding bin (2) is fixedly connected with a buffer baffle (4), the side walls of the feeding bin (2) are fixedly connected with drive bins (5) at both ends, the cavities of the drive bins (5) at both ends are fixedly connected with motors (6), the side walls of the feeding bin (2) are rotatably connected with magnetic separation cylinder devices (7) at both ends, one end of the magnetic separation cylinder devices (7) at both ends is fixedly connected with one end of the motor (6). The cavity of the feeding bin (2) is fixedly connected with a gravel collecting guide plate (8) between both ends, the cavity of the feeding bin (2) is provided with iron ore collecting grooves (9) at both ends, the cavity of the gravel collecting guide plate (8) is fixedly connected with a first conveying belt (10) at the bottom, the cavity of the feeding bin (2) is fixedly connected with a second conveying belt (11) at the bottom, the cavity of the buffer baffle (4) is fixedly connected with a separation air blowing plate device (12), both ends of the feeding bin (2) are fixedly connected with discharge port guide plates (13), and the top of the bin body (1) is provided with an energy supply mechanism fixedly connected with the separation air blowing plate device (12).

2. A magnetic separation apparatus for beneficiating iron ore fines as claimed in claim 1 wherein, The energy supply mechanism comprises a fan (14) and an energy supply pipe (15), one end of the bin body (1) is fixedly connected with the fan (14), the output end of the fan (14) is fixedly connected with the energy supply pipe (15), and the other end of the energy supply pipe (15) is fixedly connected with the input end of the separation air blowing plate device (12).

3. A magnetic separation apparatus for beneficiating iron ore fines as claimed in claim 1 wherein, Both ends of the magnetic separation cylinder device (7) comprise a support disc (16), one end of the support disc (16) is fixedly connected to the side wall in the cavity of the drive bin (5), the other end of the support disc (16) is fixedly connected with a magnetic system (17), a sealing rotating groove (18) is formed in the outer wall of the support disc (16), and a cylinder (19) is rotatably connected to the sealing rotating groove (18), one end of the cylinder (19) penetrates through the side wall of the drive bin (5) and is fixedly connected with one end of the motor (6).

4. A magnetic separation apparatus for beneficiating iron ore fines as claimed in claim 1 wherein, The separation air blowing plate device (12) is an arc-shaped hollow plate, and a plurality of air outlet holes (20) are formed in the bottom arc-shaped surface.

5. A magnetic separation apparatus for beneficiating iron ore fines as claimed in claim 3 wherein, A plurality of reinforcing protruding blocks (21) are fixedly connected to the surface of the cylinder (19), and a plurality of reinforcing adsorption grooves (22) are formed in the surface of the cylinder (19).

6. A magnetic separation apparatus for beneficiating iron ore fines as claimed in claim 1 wherein, A control display (23) is fixedly connected to the side wall of the bin body (1), soft brush plates (24) are fixedly connected to the side walls in the cavity of the bin body (1) at both ends, and the side walls of the soft brush plates (24) at both ends are slidingly connected with the surfaces of the corresponding cylinders (19).

7. A magnetic separation apparatus for beneficiating iron ore fines as claimed in claim 1 wherein, A plurality of universal wheels (25) are fixedly connected to the bottom of the bin body (1).

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