A iron removal feeder

Abstract

The present application provides an iron removal feeder, comprising a box, a conveyor, a conveyor belt, rods, a hinge, an adsorption section, an iron unloading section, a switch and an electrical connection board; a conveyor is provided in the box, a vibrator is provided on the box, the conveyor comprises a conveyor belt, the conveyor belt is hinged in sequence by rods and hinges to form a closed structure, the rods are made of electromagnetic material, and a gap is left between each of the rods to allow ore to pass through, the conveyor belt is divided into an adsorption section and an iron unloading section in sequence, each rod in the conveyor belt is provided with a switch at one end, and an electrical connection board connected to the switch is provided on the inner wall of the box body at a position matching the adsorption section. The above structure of the present invention realizes the removal of iron impurities and the feeding of the crusher under the magnetic and vibration force fields, and completes two operations with one device, without the need to set up independent iron removal equipment, thereby reducing equipment and plant investment and saving costs.

Description

Technical Field

[0001] The present application belongs to the technical field of iron removal in mineral processing plants, and in particular relates to an iron removal feeder. Background Art

[0002] Currently, most non-magnetic ores have a relatively fine particle size and ultimately require grinding and separation to produce high-quality concentrates. The maximum particle size of ore mined from a stope is typically 600-1200mm, while the feed size for grinding is typically less than 12mm. This necessitates the use of crushing prior to grinding.

[0003] Typically, mined ore undergoes three to four consecutive stages of crushing before entering the grinding mill to achieve the desired grinding particle size. Secondary, fine, and ultra-fine crushing, in addition to coarse crushing, are limited by their relatively small feed size and narrow crushing chamber width. This makes the crushing chamber susceptible to clogging by intrusive iron, potentially damaging the crusher. Therefore, the feed to each of these stages must undergo iron removal to protect the crusher. This necessitates iron removal for each subsequent stage of crushing.

[0004] The current iron removal operation for non-magnetic ores generally involves hanging an independent disc remover or belt remover above the crusher's feed belt. This method of using independent iron removal equipment has large equipment specifications, occupies a large space, and requires high equipment purchase and workshop investment. Summary of the Invention

[0005] Therefore, the technical problem to be solved by this application is to provide an iron removal feeder. The above structure realizes the removal of iron impurities and feeding of the crusher under the magnetic and vibration fields, and completes two operations with one device. There is no need to set up independent iron removal equipment, thereby reducing equipment and factory investment and saving costs.

[0006] In order to solve the above problems, the present application provides an iron removal feeder, comprising a box, a conveyor, a conveyor belt, rods, a hinge, an adsorption section, an iron unloading section, a switch and a power board;

[0007] A conveyor is provided in the box body, a vibrator is provided on the box body, the conveyor includes a conveyor belt, and the conveyor belt is hinged by rods and hinges in sequence to form a closed structure, the rods are made of electromagnetic material, and there is a leakage gap between the two rods to allow ore to pass through. The conveyor belt is divided into an adsorption section and an iron unloading section in sequence, and a switch is provided at one end of each rod in the conveyor belt. A power board connected to the switch is provided on the inner wall of the box body at a position matching the adsorption section.

[0008] Optionally, the conveyor includes a driving device, a driving roller and a transmission roller, the driving roller and the transmission roller are both arranged in the box body, the conveyor belt is sleeved on the outer circumference of the driving roller and the transmission roller, and the driving device is connected to the driving roller to drive the conveyor belt to rotate in the box body.

[0009] Optionally, the upper layer of the conveyor belt and the area within 0.5m-1m from the contact end of the upper layer of the conveyor belt and the upper circumferential surface of the driving roller is the iron unloading section.

[0010] Optionally, a longitudinal beam is provided between the conveyor and the box body, the power connection plate is provided on the longitudinal beam, and a power connection slot in contact with the switch is provided in the middle of the power connection plate.

[0011] Optionally, the switch is a contact switch, and the switch is a spring-type contact switch.

[0012] Optionally, a control box is further included, and the power board is connected to the control box. The control box can adjust the current intensity connected to the power board to adjust the magnetic field intensity of the rods.

[0013] Optionally, the vibrator includes a rotating shaft, an eccentric excitation block and a transmission motor, the rotating shaft is arranged on the box body, the eccentric excitation block is arranged on the rotating shaft, and the transmission motor is connected to the rotating shaft.

[0014] Optionally, a spring is provided between the box and the base, the box is tilted on the base, the conveyor is tilted inside the box, and the inclination angle of the conveyor is the same as the inclination angle of the box.

[0015] Optionally, a discharge hopper and a debris discharge hopper are provided below the box body, a first base plate is provided between the discharge hopper and the lower base, and a second base plate is provided between the debris discharge hopper and the lower base.

[0016] Optionally, the driving device and the transmission motor are both variable frequency motors, and the driving device and the transmission motor are both connected to the control box.

[0017] Beneficial effects

[0018] An iron removal feeder provided in an embodiment of the present invention has the following advantages:

[0019] 1. The present invention forms an adsorption section by connecting the upper part of the conveyor belt with the power board. After the non-magnetic ore is fed into the upper part of the conveyor from the feeding end of the box, the iron impurities are adsorbed in the adsorption section by the magnetic force of the rods. Under the action of the vibration force of the vibrator, the non-magnetic mineral is thrown forward. Each time it is thrown and dropped, the chance of the ore being discharged from the gap between the rods increases. The ore is continuously thrown and discharged until it passes through the gap between the rods and falls into the discharge hopper to be fed into the crusher below. The iron impurities in the adsorption section eventually move to the unloading section. At this time, the power to the rods is cut off, the magnetic force disappears, and the iron impurities are unloaded into the discharge hopper. The above structure realizes the removal of iron impurities and the feeding of the crusher under the magnetic and vibration force fields. Two operations are completed with one device, and there is no need to set up independent iron removal equipment, thereby reducing equipment and plant investment and saving costs.

[0020] 2. In the present invention, the length of the adsorption section accounts for the vast majority of the length of the conveyor belt. The adsorption section is longer, thereby ensuring the time and frequency for sufficient non-magnetic minerals to be discharged from the blanking gap of the rods to the discharge hopper. The gap between adjacent rods is 1.5 times the maximum ore particle size. The size of the gap ensures that all the ore passes through, thereby ensuring that all the ore is discharged into the discharge hopper, avoiding ore loss.

[0021] 3. The present invention provides a power connection slot 4 with a width of 10mm-20mm in the middle of the power connection board, and insulating rubber is installed on both sides of the power connection slot. The switch is a spring-type contact switch. That is, after the switch contacts the power connection slot, the spring is compressed and the rod is energized to realize the magnetization of the rod. The spring-type contact switch connects and disconnects power quickly, eliminates the danger of contact points, and improves safety.

[0022] 4. The present invention can adjust the current connected to the power board through the control box, thereby adjusting the rod field strength according to actual usage needs, so that the rod field strength can be adjusted between, thereby achieving control and adjustment of the rod's adsorption of iron impurities and improving the iron removal effect.

[0023] 5. The transmission motor and drive device can be frequency-controlled through the control box. The vibration intensity can be controlled and adjusted through the frequency-controlled speed regulation of the transmission motor, thereby adjusting the length of time the ore stays in the adsorption section of the conveyor belt. By adjusting the magnetic field of the rods and the vibration force, the acquisition of a suitable comprehensive position is guaranteed. Combined with the control of the sorting time, the iron removal effect is guaranteed, the loss of ore is avoided, and the degree of automation is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a top view of the iron removal feeder for this application;

[0025] Figure 2 This is the cross-sectional structural diagram of the iron removal feeder at AA in this application;

[0026] Figure 3 This is the connection structure diagram of the switch and power board of the iron removal feeder in this application.

[0027] The reference numerals indicate:

[0028] 1. Box; 2. Conveyor; 21. Conveyor belt; 211. Rod; 212. Hinge; 213. Adsorption section; 214. Iron unloading section; 215. Switch; 22. Drive device; 23. Drive roller; 24. Transmission roller; 3. Power connection board; 4. Power connection slot; 5. Rotating shaft; 6. Eccentric excitation block; 7. Transmission motor; 8. Base; 9. Spring; 10. Discharge hopper; 11. Discharge bucket; 12. First base plate; 13. Second base plate. DETAILED DESCRIPTION

[0029] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0031] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0032] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0033] See also Figures 1 to 3As shown, according to an embodiment of the present application, a de-ironing feeder includes a box body 1, a conveyor 2, a conveyor belt 21, rods 211, hinges 212, an adsorption section 213, an iron unloading section 214, a switch 215 and a power board 3; a conveyor 2 is provided in the box body 1, and a vibrator is provided on the box body 1. The conveyor 2 includes a conveyor belt 21, and the conveyor belt 21 is hinged in sequence by rods 211 and hinges 212 to form a closed structure. The rods 211 are made of electromagnetic material, and a leakage gap is left between each pair of rods 211 to allow ore to pass through. The conveyor belt 21 is divided into an adsorption section 213 and an iron unloading section 214 in sequence. A switch 215 is provided at one end of each rod 211 in the conveyor belt 21, and a power board 3 connected to the switch 215 is provided on the inner wall of the box body 1 at a position matching the adsorption section 213. The above structure realizes the removal of iron impurities and feeding of crushers under magnetic and vibration fields, completing two operations with one device, without the need to set up independent iron removal equipment, thereby reducing equipment and plant investment and saving costs.

[0034] Specifically, a vibrator is mounted on the housing 1 and can drive the housing 1 to vibrate. The conveyor 2 is tilted and mounted within the housing 1. The conveyor 2 includes a conveyor belt 21 for moving ore. The conveyor belt 21 is hingedly connected by a hinge 212 and electromagnetic rods 211. A power board 3 is mounted on the inner wall of the housing 1. A switch 215 is mounted on one end of each rod 211. The power board 3 is connected to a portion of the rods 211 on the upper conveyor belt 21 of the conveyor 2. Therefore, the portion of the upper conveyor belt 21 of the conveyor 2 that can be connected to the power board 3 is the adsorption section 213, and the portion of the upper conveyor belt 21 of the conveyor 2 that cannot be connected to the power board 3 is the iron unloading section 214. Non-magnetic ore is fed onto the conveyor belt 21 of the conveyor 2 from one end of the top of the housing 1. The rods 211 on the adsorption section 213 are connected to the power board 3, causing the rods 211 to generate magnetic force, which can adsorb iron impurities in the non-magnetic ore. As the vibrator continuously vibrates the housing 1, the non-magnetic mineral is ejected forward. Each ejection and drop increases the chance that the mineral will fall through the gaps between the rods 211. This continuous ejection and drop process continues until the mineral passes through the gaps between the rods 211 and is fed into the next crushing step. The rods 211, which have absorbed the iron, eventually detach from the power supply plate 3 and move into the iron unloading section 214. At this point, the power to the rods 211 is removed, eliminating the magnetic force on the rods 211 and allowing the iron to fall into the waste hopper 11.

[0035] Among them, the width of the rod 211 is 50mm-100mm, the adsorption magnetism is relatively high, and the gap between adjacent rods 211 is 1.5 times the maximum ore particle size, so it can fully meet the requirement of all ore passing through, thereby ensuring that all ore is discharged into the ore discharge hopper 10, avoiding ore loss and the problem of material jamming during unloading.

[0036] The length of the adsorption section 213 on the conveyor belt 21 is greater than the length of the iron unloading end on the conveyor belt 21 . The length of the adsorption section 213 is four times or three times the length of the iron unloading section 214 .

[0037] The conveyor 2 includes a driving device 22, a driving roller 23 and a transmission roller 24. The driving roller 23 and the transmission roller 24 are both arranged in the box body 1. The conveyor belt 21 is sleeved on the outer circumference of the driving roller 23 and the transmission roller 24. The driving device 22 is connected to the driving roller 23 and is used to drive the conveyor belt 21 to rotate in the box body 1.

[0038] Specifically, the conveyor 2 is installed in the box body 1 through the longitudinal beam, and the conveyor 2 also includes a driving device 22, a driving roller 23 and a transmission roller 24. The driving roller 23 and the transmission roller 24 are installed in the box body 1, and the conveyor belt 21 is sleeved on the outer circumference of the driving roller 23 and the transmission roller 24. The driving device 22 is installed on the outside of the box body 1, and its output end is connected to the driving roller 23. The driving device 22 can drive the driving roller 23 to rotate and then drive the output belt to move in the box body 1, which can drive the ore to be thrown forward during vibration, and can also drive the rod 211 of the adsorption section 213 to separate from the power board 3 and enter the iron unloading end to realize the unloading of iron impurities.

[0039] The iron unloading section 214 is located on the upper layer of the conveyor belt 21 and within a range of 0.5 m to 1 m from the contact end of the upper layer of the conveyor belt 21 and the upper circumferential surface of the driving roller 23 .

[0040] Specifically, the range of 0.5m-1m from the upper conveyor belt 21 in the conveyor 2 to the contact end of the upper conveyor belt 21 with the upper circumferential surface of the roller is the iron unloading section 214, and the rest of the upper conveyor belt 21 is the adsorption section 213. The length of the adsorption section 213 is greater than the length of the iron unloading section 214, and can unload the iron impurities adsorbed on the rod 211.

[0041] A longitudinal beam is provided between the conveyor 2 and the box body 1 , and a power connection board 3 is provided on the longitudinal beam. A power connection slot 4 in contact with the switch 215 is provided in the middle of the power connection board 3 .

[0042] The switch 215 is a contact switch 215 , and the switch 215 is a spring-loaded contact switch 215 .

[0043] Specifically, a longitudinal beam is installed within the housing 1 to secure the conveyor 2. A power plate 3 is mounted on the longitudinal beam. The power plate 3 is the same length as the adsorption section 213 of the conveyor 2. The power plate 3 is not installed at the unloading section 214. Therefore, when the drive roller 23 drives the conveyor belt 21 to move to the unloading section 214, the switch 215 on the rod 211 will disengage from the power plate 3. As a result, the rod 211 in the unloading section 214 loses its magnetism, completing the unloading of the iron debris. A power slot 4 with a width of 10mm-20mm is provided in the middle of the power plate 3. Insulating rubber 14 is installed on both sides of the power slot 4. The switch 215 is a spring-loaded contact switch. That is, when the switch 215 contacts the power slot 4, the spring is compressed, energizing the rod 211 and magnetizing it. This spring-loaded contact switch quickly connects and disconnects power, eliminates hazards at contact points, and improves safety.

[0044] The system further includes a control box, to which the power board 3 is connected. The control box can adjust the current intensity of the power board 3 to adjust the magnetic field intensity of the rod 211 .

[0045] Specifically, it also includes a control box, which is connected to the power board 3. The control box can adjust the current connected to the power board 3, thereby adjusting the field strength of the rod 211 according to actual usage needs, so that the field strength of the rod 211 can be adjusted between 30-100MT, thereby achieving control and adjustment of the adsorption of iron impurities by the adjustment rod 211 and improving the iron removal effect.

[0046] The vibrator includes a rotating shaft 5 , an eccentric excitation block 6 and a transmission motor 7 . The rotating shaft 5 is arranged on the box 1 , the eccentric excitation block 6 is arranged on the rotating shaft 5 , and the transmission motor 7 is connected to the rotating shaft 5 .

[0047] A spring 9 is provided between the box body 1 and the base 8 . The box body 1 is tilted on the base 8 . The conveyor 2 is tilted in the box body 1 . The tilt angle of the conveyor 2 is the same as that of the box body 1 .

[0048] Specifically, the vibrator is installed on the box body 1, a spring 9 is installed between the box body 1 and the base 8, the box body 1 is installed on the base 8 at an angle, and the conveyor 2 is installed in the box body 1. The conveyor 2 and the box body 1 have the same inclination angle. Therefore, the transmission motor 7 drives the rotating shaft 5 and the eccentric excitation block 6 to rotate, so that the box body 1 vibrates on the base 8, so that the non-magnetic ore can be thrown forward on the conveyor 2, thereby increasing the probability of the non-magnetic ore falling from the blanking gap and avoiding ore loss.

[0049] A discharge hopper 10 and a debris discharge hopper 11 are provided below the box body 1 . A first base plate 12 is provided between the discharge hopper 10 and the lower base 8 , and a second base plate 13 is provided between the debris discharge hopper 11 and the lower base 8 .

[0050] Specifically, a discharge hopper 10 is installed at the bottom of the box body 1 where it matches the adsorption section 213, and a debris discharge hopper 11 is installed at the bottom of the box body 1 where it matches the iron unloading section 214. The discharge hopper 10 and the debris discharge hopper 11 are both funnel-shaped structures with a larger top and a smaller bottom. The length of the top opening of the discharge hopper 10 is 3-8 meters, and the length of the top opening of the debris discharge hopper 11 is 1-2 meters. The ore unloaded by the conveyor belt 21 enters the discharge hopper 10 and further enters the crusher for crushing. The iron debris falling from the iron unloading section 214 of the conveyor belt 21 enters the debris discharge hopper 11, and the debris discharge hopper 11 collects it.

[0051] The driving device 22 and the transmission motor 7 are both variable frequency motors, and both the driving device 22 and the transmission motor 7 are connected to the control box.

[0052] Specifically, the drive device 22 and the transmission motor 7 are both variable frequency motors, and the drive device 22 and the transmission motor 7 are both connected to the control box. The control box can be used to perform variable frequency speed regulation on the transmission motor 7 and the drive device 22. The variable frequency speed regulation of the transmission motor 7 can realize the control and adjustment of the vibration intensity, thereby realizing the adjustment of the time that the ore stays in the adsorption section 213 of the conveyor belt 21. By adjusting the magnetic field of the rod 211 and the vibration force, it is ensured that a suitable comprehensive position is obtained. Combined with the control of the sorting time, the iron removal effect is guaranteed, the loss of ore is avoided, and the degree of automation is high.

Claims

1. A deironing feeder, characterized in that: It comprises a box (1), a conveyor (2), a conveyor belt (21), a rod (211), a hinge (212), an adsorption section (213), an iron unloading section (214), a switch (215) and a power board (3); A conveyor (2) is provided in the box (1), a vibrator is provided on the box (1), the conveyor (2) includes a conveyor belt (21), the conveyor belt (21) is hinged in sequence by rods (211) and hinges (212) to form a closed structure, the rods (211) are made of electromagnetic material, and gaps are left between the rods (211) to allow ore to pass through. The conveyor belt (21) is divided into an adsorption section (213) and an iron unloading section (214) in sequence, and a switch (215) is provided at one end of each rod (211) in the conveyor belt (21), and a power board (3) connected to the switch (215) is provided on the inner side wall of the box (1) at a position matching the adsorption section (213).

2. The iron removal feeder according to claim 1, characterized in that: The conveyor (2) comprises a driving device (22), a driving roller (23) and a transmission roller (24); the driving roller (23) and the transmission roller (24) are both arranged in the box (1); the conveyor belt (21) is sleeved on the outer circumference of the driving roller (23) and the transmission roller (24); the driving device (22) is connected to the driving roller (23) and is used to drive the conveyor belt (21) to rotate in the box (1).

3. The iron removal feeder according to claim 2, characterized in that: The iron unloading section (214) is located on the upper layer of the conveyor belt (21) and within a range of 0.5m-1m from the contact end between the upper layer of the conveyor belt (21) and the upper circumferential surface of the driving roller (23).

4. The iron removal feeder according to claim 1, characterized in that: A longitudinal beam is provided between the conveyor (2) and the box (1), the power connection plate (3) is provided on the longitudinal beam, and a power connection slot (4) in contact with the switch (215) is provided in the middle of the power connection plate (3).

5. The iron removal feeder according to claim 4, characterized in that: The switch (215) is a contact switch or a spring-type contact switch.

6. The iron removal feeder according to claim 1, characterized in that: It also includes a control box, the power board (3) is connected to the control box, and the control box can adjust the current intensity connected to the power board (3) to adjust the magnetic field intensity of the rod (211).

7. The iron removal feeder according to claim 2, characterized in that: The vibrator comprises a rotating shaft (5), an eccentric excitation block (6) and a transmission motor (7); the rotating shaft (5) is arranged on the box (1); the eccentric excitation block (6) is arranged on the rotating shaft (5); and the transmission motor (7) is connected to the rotating shaft (5).

8. The iron removal feeder according to claim 1, characterized in that: It also includes a base (8), a spring (9) is provided between the box (1) and the base (8), the box (1) is tilted on the base (8), the conveyor (2) is tilted in the box (1), and the inclination angle of the conveyor (2) is the same as the inclination angle of the box (1).

9. The iron removal feeder according to claim 8, characterized in that: A discharge hopper (10) and a debris discharge hopper (11) are provided below the box body (1); a first base plate (12) is provided between the discharge hopper (10) and the base (8); and a second base plate (13) is provided between the debris discharge hopper (11) and the base (8).

10. The iron removal feeder according to claim 7, characterized in that: The driving device (22) and the transmission motor (7) are both variable frequency motors, and the driving device (22) and the transmission motor (7) are both connected to a control box.

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