An iron ore magnetic separator for ore mining

Abstract

The invention discloses an iron ore magnetic separator for ore mining, which belongs to the technical field of mining machinery and equipment. The iron ore magnetic separator for ore mining includes a bracket and a funnel, and also includes: a grinding disc, which is arranged below the funnel mouth of the funnel, the upper end surface of the grinding disc is a grinding surface, and the grinding disc is connected to a power device; multiple adsorption mechanisms, each adsorption structure includes a connecting shaft, an energized slip ring, an adsorption disc and multiple connecting columns, the adsorption disc includes multiple fan-shaped plates, the bottom surface of each fan-shaped plate can abut against the grinding surface, each connecting column is provided with an electromagnetic coil, each electromagnetic coil is electrically connected to the energized slip ring, and the energized slip ring is used to energize the electromagnetic coil on the connecting column connected to the fan-shaped plate when the bottom surface of the fan-shaped plate abuts against the grinding surface. The iron ore magnetic separator for ore mining of the present invention can further grind the ore material, refine the ore material, separate the concentrate from the impurities to the maximum extent, and maximize the utilization rate of the ore material.

Description

Technical Field

[0001] The invention relates to the technical field of mining machinery and equipment, and in particular to an iron ore magnetic separator used in ore mining. Background Art

[0002] The grade of iron ore in my country is relatively low, and the impurity content is mostly high. Therefore, before smelting the ore, it is necessary to concentrate the ore. With the development of industrial construction and science and technology, the ore concentration process has also made great progress. Among them, magnetic separation is widely used due to its high efficiency and low pollution. Magnetic separation is often used to separate ferrous metals, non-ferrous metals and rare metal minerals and other industrial raw materials, among which iron ore is the main one. The ore needs to be crushed before being concentrated, so as to separate the concentrate and impurities in the ore, so as to facilitate the adsorption of the magnetic separator. Improving the fineness of the ore can improve the adsorption effect of the magnetic separator, thereby improving the utilization efficiency of the ore.

[0003] Some existing iron ore magnetic separators generally include a support, a flow hopper, a magnetic suction mechanism and a collection hopper, wherein the flow hopper is arranged on the support, the magnetic suction mechanism is arranged below the flow hopper, and the collection hopper is arranged on one side of the magnetic suction mechanism. When performing ore dressing, the raw ore is added into the flow hopper, and the raw ore falls into the flow hopper. The ferromagnetic concentrate in the raw ore is adsorbed by the magnetic suction mechanism, and the impurities in the raw ore fall naturally. The magnetic suction mechanism can rotate, thereby driving the concentrate on it to rotate. When the concentrate rotates to the top of the collection hopper, the magnetic suction mechanism is closed, and the concentrate adsorbed on the magnetic suction mechanism falls into the collection hopper under the action of gravity, thereby completing the selection of the ore.

[0004] However, the existing iron ore magnetic separator is difficult to further grind the ore, and it is difficult to refine the ore, so it is difficult to separate the concentrate from the impurities to the maximum extent, resulting in low ore utilization efficiency and waste of resources. Summary of the invention

[0005] The purpose of the present invention is to overcome the problems in the prior art and provide an iron ore magnetic separator for ore mining, which can further grind the ore to refine the ore and separate the concentrate from impurities to the maximum extent under the action of magnetic force, so as to maximize the utilization rate of the ore.

[0006] The present invention provides an iron ore magnetic separator for ore mining, comprising a support and a funnel, and further comprising:

[0007] A grinding disc is arranged below the funnel opening of the funnel, the upper end surface of the grinding disc is a grinding surface, the grinding surface has a certain taper, and the grinding disc is connected to a power device;

[0008] A plurality of adsorption mechanisms are arranged around the grinding disc, each adsorption structure comprises a connecting shaft, an energized slip ring, an adsorption disc and a plurality of connecting columns, the connecting shaft is connected to the bracket, the adsorption disc bearing is connected to the connecting shaft, the adsorption disc comprises a plurality of fan-shaped plates, the bottom surface of each fan-shaped plate can abut against the grinding surface, each fan-shaped plate is connected to a connecting column, each connecting column is provided with an electromagnetic coil, each electromagnetic coil is electrically connected to the energized slip ring, the energized slip ring is electrically connected to a power supply device, and the energized slip ring is used to energize the electromagnetic coil on the connecting column connected to the fan plate when the bottom surface of the fan-shaped plate abuts against the grinding surface.

[0009] Preferably, a rotating shaft is provided between the grinding disc and the power device, the rotating shaft is connected to the bracket bearing, the rotating shaft is connected to the power device, a special-shaped hole is provided at the center of the grinding disc, a special-shaped groove matching the special-shaped hole is provided at the top of the rotating shaft, the special-shaped groove is slidably connected to the special-shaped hole, and a spring is provided below the grinding disc on the rotating shaft, and the spring is used to apply an elastic force along the axial direction of the rotating shaft to the grinding disc.

[0010] Preferably, a connecting tube is provided on the grinding surface of the grinding disc, the connecting tube is connected to the funnel mouth of the funnel, a plurality of leakage holes are provided on the side wall of the bottom end of the connecting tube, a plurality of first protrusions are provided on the top end of the connecting tube, a ring plate is connected to the side wall of the funnel mouth, a plurality of second protrusions are provided on the bottom end of the ring plate, and the first protrusions are slidably connected to the second protrusions.

[0011] Preferably, the energized slip ring includes an electric ring of the slip ring, the slip ring is connected to the connecting shaft bearing, the slip ring is connected to the connecting column, the electric ring is arranged on the side wall of the connecting shaft, the electric ring is provided with a notch, the notch is oriented in the direction away from the grinding disk, and a plurality of electric contact pins are provided on the slip ring, one end of each electric contact pin is electrically connected to an electromagnetic coil, and the other end of each electric contact pin can be slidably connected and electrically connected to the electric ring.

[0012] Preferably, a collecting funnel is provided under the grinding disc, and the collecting funnel is used to receive the materials falling from the grinding disc. A collecting ring groove is provided outside the collecting funnel, and the collecting ring groove is used to collect the materials falling from the adsorption plate.

[0013] Preferably, a guide cone is provided on the grinding surface of the grinding disc, and the guide cone is arranged directly below the funnel mouth.

[0014] Preferably, a guide surface is provided on the bottom edge of each sector plate, and a gap is left between the guide surface and the grinding surface.

[0015] Preferably, the bottom surface of the sector plate is provided with a wear-resistant coating.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: the iron ore magnetic separator used in the ore mining of the present invention can further grind the ore material, thereby refining the ore material, and under the action of magnetic force, separate the concentrate from the impurities to the maximum extent, thereby maximizing the utilization rate of the ore material.

[0017] By setting the special-shaped hole, special-shaped groove and spring, the adsorption plate can be prevented from being stuck, thereby ensuring the normal operation of the device. By setting the first protrusion and the second protrusion, the adsorption effect of the adsorption plate can be improved, thereby further improving the utilization rate of the ore. By setting the electric ring of the slip ring, the electromagnetic coil can be powered off in time, thereby ensuring that the concentrate can be separated from the adsorption plate in time, thereby ensuring the normal operation of the device. By setting the collecting funnel, impurities can be collected in a centralized manner, thereby facilitating the centralized treatment of impurities. By setting the collecting ring groove, the concentrate can be collected in a centralized manner, thereby facilitating the collection of the concentrate by the staff. By setting the backflow cone to backflow the ore, the uniformity of the ore on the grinding disc can be improved, the adsorption effect of the adsorption plate can be further improved, and the utilization rate of the ore can be improved. By setting the guide surface, the larger particles of ore can be converted into smaller particles of ore first, thereby reducing the difficulty of crushing the ore. By setting the wear-resistant coating, the wear resistance of the fan plate can be improved, thereby improving the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention;

[0019] Figure 2 It is a structural schematic diagram of the AA surface of the present invention;

[0020] Figure 3 It is a schematic diagram of the internal structure of the energized slip ring of the present invention;

[0021] Figure 4 It is a structural schematic diagram of the electric ring of the present invention;

[0022] Figure 5 It is a structural schematic diagram of the connecting pipe of the present invention.

[0023] Description of reference numerals:

[0024] 101. bracket, 102. funnel, 103. grinding disc, 104. grinding surface, 105. power device, 106. connecting shaft, 107. energized slip ring, 108. adsorption disc, 109. connecting column, 110. sector plate, 111. electromagnetic coil, 201. rotating shaft, 202. special-shaped groove, 203. spring, 301. connecting pipe, 302. leakage hole, 303. first protrusion, 304. ring plate, 305. second protrusion, 401. slip ring, 402. electric ring, 403. notch, 404. electric contact needle, 501. collecting funnel, 502. collecting ring groove, 6. guide cone, 7. guide surface. DETAILED DESCRIPTION

[0025] The following is combined with Figure 1-5 , the specific implementation of the present invention is described in detail, but it should be understood that the protection scope of the present invention is not limited by the specific implementation. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0026] Embodiment 1:

[0027] like Figure 1-3 As shown, the present invention provides an iron ore magnetic separator for ore mining, comprising a bracket 101 and a funnel 102, and also comprising: a grinding disc 103 and a plurality of adsorption mechanisms, the grinding disc 103 is arranged below the funnel 102 opening of the funnel 102, the upper end surface of the grinding disc 103 is a grinding surface 104, the grinding surface 104 has a certain taper, and the grinding disc 103 is connected to a power device 105; a plurality of adsorption mechanisms are arranged around the grinding disc 103, each adsorption structure comprises a connecting shaft 106, an energized slip ring 107, an adsorption disc 108 and a plurality of connecting columns 109, the connecting shaft 106 and the bracket 101 is connected, the adsorption disk 108 is bearing-connected to the connecting shaft 106, the adsorption disk 108 includes a plurality of fan-shaped plates 110, the bottom surface of each fan-shaped plate 110 can abut against the grinding surface 104, each fan-shaped plate 110 is connected to a connecting column 109, each connecting column 109 is provided with an electromagnetic coil 111, each electromagnetic coil 111 is electrically connected to the powered slip ring 107, the powered slip ring 107 is electrically connected to a power supply device, and the powered slip ring 107 is used to energize the electromagnetic coil 111 on the connecting column 109 connected to the fan plate 110 when the bottom surface of the fan-shaped plate 110 abuts against the grinding surface 104.

[0028] The working principle of Example 1 is now briefly described:

[0029] When the device is in use, the ore is put into the funnel 102, and the ore flows down from the funnel 102 and falls onto the grinding disc 103. The power device 105 is turned on, and the power device 105 drives the grinding disc 103 to rotate. Under the action of the centrifugal force of the rotating disc and the action of the grinding surface 104 with a certain taper, the ore moves along the grinding surface 104 in a direction away from the rotating shaft 201. The bottom surface of one of the fan-shaped plates 110 of the adsorption disc 108 abuts against the grinding surface 104. Under the action of friction, the grinding disc 103 drives the fan-shaped plate 110 on the adsorption disc 108 to rotate, thereby crushing the ore on the grinding surface 104 to form ore powder. At the same time, the electromagnetic coil 111 is electrically connected to the power supply device through the energized slip ring 107. After the electromagnetic coil 111 is energized, a magnetic field is generated, and the magnetic field is excited through the connecting column 109, so that the fan-shaped plate 110 has magnetism, so that the ferromagnetic concentrate in the ore powder is adsorbed on the fan-shaped plate 110. As the adsorption disk 108 rotates, when the sector plate 110 loses contact with the grinding surface 104 of the grinding disk 103, the electromagnetic coil 111 corresponding to the sector plate 110 is powered off. At this time, the electromagnetic coil 111 loses its magnetism, and the corresponding sector plate 110 loses its magnetism, and the concentrate adsorbed on the sector plate 110 falls down under its own action. At this time, the impurities on the grinding plate roll off the grinding disk 103 under the action of centrifugal force and its own gravity as the grinding disk 103 rotates, thereby separating the concentrate from the impurities.

[0030] The iron ore magnetic separator used in ore mining of the present invention can further grind the ore material, thereby refining the ore material, and under the action of magnetic force, separate the concentrate from impurities to the maximum extent, thereby maximizing the utilization rate of the ore material.

[0031] Embodiment 2:

[0032] On the basis of Example 1, in order to prevent the adsorption plate 108 from being stuck, the normal operation of the device is ensured.

[0033] like Figure 1 As shown, a rotating shaft 201 is provided between the grinding disc 103 and the power device 105, the rotating shaft 201 is connected to the bearing of the bracket 101, the rotating shaft 201 is connected to the power device 105, a special-shaped hole is provided in the center of the grinding disc 103, a special-shaped groove 202 matching the special-shaped hole is provided at the top of the rotating shaft 201, the special-shaped groove 202 is slidably connected to the special-shaped hole, a spring 203 is provided below the grinding disc 103 on the rotating shaft 201, and the spring 203 is used to apply an elastic force along the axial direction of the rotating shaft 201 to the grinding disc 103.

[0034] The power device 105 drives the rotating shaft 201 to rotate, and drives the grinding disc 103 to rotate through the special-shaped hole and the special-shaped groove 202. The elastic force of the spring 203 is applied to the mineral material through the grinding disc 103, thereby squeezing and grinding the mineral material. When the mineral material particles on the grinding surface 104 of the grinding disc 103 are too large, the grinding disc 103 can move downward along the axial direction of the rotating shaft 201 under the action of the reaction force of the mineral material, thereby preventing the adsorption disc 108 from being stuck, and ensuring the normal operation of the device.

[0035] Embodiment 3:

[0036] On the basis of Example 2, in order to further adsorb the concentrate in the mineral material onto the adsorption disk 108, the adsorption effect of the adsorption disk 108 is improved, thereby further improving the utilization rate of the mineral material.

[0037] like Figure 1 , 2 As shown in and 5, a connecting tube 301 is provided on the grinding surface 104 of the grinding disc 103, and the connecting tube 301 is connected to the funnel 102 mouth of the funnel 102, and a plurality of leakage holes 302 are provided on the side wall of the bottom end of the connecting tube 301, and a plurality of first protrusions 303 are provided on the top of the connecting tube 301, and a ring plate 304 is connected to the side wall of the funnel 102 mouth, and a plurality of second protrusions 305 are provided on the bottom end of the ring plate 304, and the first protrusions 303 are slidably connected with the second protrusions 305.

[0038] When the grinding disc 103 rotates, it drives the connecting tube 301 to rotate, thereby driving the first protrusion 303 to rotate. The first protrusion 303 slides relative to the second protrusion 305. Under the action of the elastic force of the spring 203, the connecting tube 301 moves up and down, thereby causing the grinding disc 103 to move up and down, thereby generating an impact on the mineral material between the grinding disc 103 and the adsorption disc 108, and utilizing the impact force to enhance the crushing effect of the mineral material. Furthermore, the undulating grinding disc 103 can overturn the mineral material on the grinding disc 103, thereby flipping the mineral material on the bottom layer of the grinding disc 103 to the surface, thereby further adsorbing the concentrate in the mineral material on the adsorption disc 108, thereby enhancing the adsorption effect of the adsorption disc 108, thereby further improving the utilization rate of the mineral material.

[0039] As a preferred solution, Figure 1-4As shown, the powered slip ring 107 includes an electric ring 402 of a slip ring 401, the slip ring 401 is connected to the connecting shaft 106 bearing, the slip ring 401 is connected to the connecting column 109, the electric ring 402 is arranged on the side wall of the connecting shaft 106, the electric ring 402 is provided with a notch 403, the notch 403 is oriented away from the grinding disc 103, and a plurality of electric contact pins 404 are arranged on the slip ring 401, one end of each electric contact pin 404 is electrically connected to an electromagnetic coil 111, and the other end of each electric contact pin 404 can be slidably connected and electrically connected to the electric ring 402. When the grinding disc 103 rotates, it drives the adsorption disc 108 to rotate, and the adsorption disc 108 drives the connecting column 109 to rotate, thereby driving the slip ring 401 to rotate, thereby driving the electric contact pin 404 to rotate, and the rotating electric contact pin 404 rotates relative to the electric ring 402. When the electric contact pin 404 contacts the electric ring 402, the electromagnetic coil 111 electrically connected to the electric contact pin 404 is energized. As the fan-shaped plate 110 corresponding to the electric contact pin 404 rotates to a position away from the grinding disc 103, the electric contact pin 404 rotates to the notch 403 of the electric ring 402, the electric contact pin 404 is separated from the contact with the electric ring 402, and the electromagnetic coil 111 is de-energized. By setting the electric ring 402 of the slip ring 401, the electromagnetic coil 111 can be de-energized in time when the fan-shaped plate 110 rotates to a position away from the grinding disc 103, thereby ensuring that the concentrate can be separated from the adsorption disc 108 in time, thereby ensuring the normal operation of the device.

[0040] As a preferred solution, Figure 1 As shown, a collecting funnel 501 is provided below the grinding disc 103, and the collecting funnel 501 is used to receive the material falling from the grinding disc 103. A collecting annular groove 502 is provided outside the collecting funnel 501, and the collecting annular groove 502 is used to collect the material falling from the adsorption plate. By providing the collecting funnel 501, impurities can be collected centrally, thereby facilitating the centralized treatment of impurities, and by providing the collecting annular groove 502, concentrates can be collected centrally, thereby facilitating the collection of concentrates by the staff.

[0041] As a preferred solution, Figure 1 As shown, a guide cone 6 is provided on the grinding surface 104 of the grinding disc 103, and the guide cone 6 is provided just below the mouth of the funnel 102. By providing a backflow cone to backflow the ore, the dispersion of the ore is improved, thereby improving the uniformity of the ore on the grinding disc 103, further improving the adsorption effect of the adsorption disc 108, and improving the utilization rate of the ore.

[0042] As a preferred solution, Figure 1As shown, a guide surface 7 is provided at the bottom edge of each sector plate 110, and a gap is left between the guide surface 7 and the grinding surface 104. By providing the guide surface 7, larger particles of mineral material can be pre-crushed, thereby converting the larger particles of mineral material into smaller particles of mineral material first, reducing the difficulty of crushing the mineral material.

[0043] As a preferred solution, Figure 1 As shown, a wear-resistant coating is provided on the bottom surface of the sector plate 110. By providing the wear-resistant coating, the wear resistance of the sector plate 110 is improved, thereby increasing the service life of the device.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An iron ore magnetic separator for ore mining, comprising a support (101) and a funnel (102), It is characterized in that Also includes: A grinding disc (103) is arranged below the funnel (102) opening of the funnel (102); the upper end surface of the grinding disc (103) is a grinding surface (104); the grinding surface (104) has a certain taper; the grinding disc (103) is connected to a power device (105); A plurality of adsorption mechanisms are arranged around the grinding disc (103), each adsorption structure comprising a connecting shaft (106), an energized slip ring (107), an adsorption disc (108) and a plurality of connecting columns (109), the connecting shaft (106) being connected to the bracket (101), the adsorption disc (108) being connected to the connecting shaft (106) by a bearing, the adsorption disc (108) comprising a plurality of fan-shaped plates (110), the bottom surface of each fan-shaped plate (110) being able to contact the grinding surface (104) ), each sector plate (110) is connected to a connecting column (109), each connecting column (109) is provided with an electromagnetic coil (111), each electromagnetic coil (111) is electrically connected to the power-carrying slip ring (107), the power-carrying slip ring (107) is electrically connected to a power supply device, and the power-carrying slip ring (107) is used to energize the electromagnetic coil (111) on the connecting column (109) connected to the sector plate (110) when the bottom surface of the sector plate (110) abuts against the grinding surface (104); The energized slip ring (107) comprises an electric ring (402) of a slip ring (401), wherein the slip ring (401) is connected to a bearing of the connecting shaft (106), the slip ring (401) is connected to the connecting column (109), the electric ring (402) is arranged on a side wall of the connecting shaft (106), the electric ring (402) is provided with a notch (403), the notch (403) is oriented in a direction away from the grinding disc (103), a plurality of electric contact pins (404) are arranged on the slip ring (401), one end of each electric contact pin (404) is electrically connected to an electromagnetic coil (111), and the other end of each electric contact pin (404) can be slidably connected and electrically connected to the electric ring (402).

2. An iron ore magnetic separator for ore mining as claimed in claim 1, It is characterized in that A rotating shaft (201) is provided between the grinding disc (103) and the power device (105); the rotating shaft (201) is connected to the bracket (101) by a bearing; the rotating shaft (201) is connected to the power device (105); a special-shaped hole is provided at the center of the grinding disc (103); a special-shaped groove (202) matching the special-shaped hole is provided at the top of the rotating shaft (201); the special-shaped groove (202) is slidably connected to the special-shaped hole; a spring (203) is provided below the grinding disc (103) on the rotating shaft (201); the spring (203) is used to apply an elastic force along the axial direction of the rotating shaft (201) to the grinding disc (103).

3. An iron ore magnetic separator for ore mining as claimed in claim 2, It is characterized in that A connecting tube (301) is provided on the grinding surface (104) of the grinding disc (103), the connecting tube (301) is connected to the funnel (102) opening of the funnel (102), a plurality of leak holes (302) are provided on the side wall at the bottom end of the connecting tube (301), a plurality of first protrusions (303) are provided on the top end of the connecting tube (301), a ring plate (304) is connected to the side wall of the funnel (102) opening, a plurality of second protrusions (305) are provided on the bottom end of the ring plate (304), and the first protrusions (303) are slidably connected to the second protrusions (305).

4. An iron ore magnetic separator for ore mining as claimed in claim 1, It is characterized in that A collecting funnel (501) is provided below the grinding disc (103), and the collecting funnel (501) is used to receive materials falling from the grinding disc (103). A collecting annular groove (502) is provided outside the collecting funnel (501), and the collecting annular groove (502) is used to collect materials falling from the adsorption plate.

5. An iron ore magnetic separator for ore mining as claimed in claim 1, It is characterized in that A guide cone (6) is provided on the grinding surface (104) of the grinding disc (103), and the guide cone (6) is arranged directly below the opening of the funnel (102).

6. An iron ore magnetic separator for ore mining as claimed in claim 1, It is characterized in that A guide surface (7) is provided at the bottom edge of each sector plate (110), and a gap is left between the guide surface (7) and the grinding surface (104).

7. An iron ore magnetic separator for ore mining as claimed in claim 1, It is characterized in that The bottom surface of the sector plate (110) is provided with a wear-resistant coating.

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