CA3015206C

CA3015206C - Wet high intensity magnetic separator

Info

Publication number: CA3015206C
Application number: CA3015206A
Authority: CA
Inventors: Chengchen ZHANG; Qi Tang; Ji Feng; Jiao YANG; Qiong Wu; Xuejiao DENG; Bin Li
Original assignee: Deng Xuejiao; Longi Magnet Co Ltd
Current assignee: Longi Magnet Co Ltd
Priority date: 2017-02-24
Filing date: 2018-01-11
Publication date: 2022-05-03
Anticipated expiration: 2038-01-11
Also published as: CN108262161A; WO2018153175A1; WO2018152878A1; CN106622646A; AU2018217255B2; CN108262159B; CA3015206A1; AU2018217255A1; CN108262160A; CN108262161B; CN108262160B; CN207722951U; CN108262159A; AU2017279840A1

Abstract

The present invention provides a wet high intensity magnetic separator, which comprises magnetic excitation system, sorting collection system, safety and isolation system and adjustment system, wherein the magnetic excitation system provides the background magnetic field used for sorting; the sorting collection system separates magnetic materials in pulp containing magnetic minerals from non-magnetic materials through magnetic separation; the safety and isolation system is used to isolate the granularity of the feeding materials, segregation of impurities in water, isolation of pollution from insulating coolant, separation of the magnetic field from fear magnetic parts and safety protection of motor, coil, matrix box module and personal safety protection of operators; the adjustment system is used for the regulation of the background magnetic field intensity, ring speed, pulsating amplitude and frequency, the height of the liquid level and the quantity/angle of rinsing water, discharging water, etc. In the invention, lots of components or modules realize the division of labor and cooperation between the systems to achieve a reliable and stable strong magnetic separation for weakly magnetic minerals.

Description

Description Wet High Intensity Magnetic Separator Technical Field The invention belongs to the technical field of magnetic separation and specifically relates to a wet high intensity magnetic separator.
Background Technology With the continuous progress of social modernization, the quantity demanded for all kinds of metal materials is also increasing, so the mineral resources are constantly being mined and the quality of mineral resources is decreasing. In order to use mineral resources more efficiently, mineral processing, especially fine mineral processing has become an inevitable trend.
In the field of mineral processing, magnetic separation has been a very important method of mineral processing. Especially in the separation of magnetic minerals, magnetic separation is the first choice in the industry for its advantages of stability, environmental protection, low cost and easy operation. In the resources containing magnetic minerals, compared to the natural high pure magnetic minerals which can be used directly without selection and the high grade magnetic minerals easy to select, the separation of most of the other weakly magnetic minerals, especially low-grade and weakly magnetic minerals, and strong, weakly symbiotic magnetic minerals, and non-metallic minerals that regard magnetic minerals as impurities is relatively complex. With the increase of the amount of mining in modern mines year by year, the total amount of resources of the natural high pure magnetic minerals which can be used directly and the high grade magnetic minerals easy to separate have been reduced, and the tailings after selecting and also containing available resources is increasing (this refers to magnetically available resources). Therefore, the separation of these other magnetic minerals and the available resources in tailings has been highly valued in the mineral processing enterprises.
In the separating process of these minerals, the core equipment must be a magnetic separator with strong magnetic trapping ability. Because of the wide variety and complex and diverse forms of these minerals, a strong magnetic separator with strong adaptability and adjusting ability is urgently needed. And because the sorting of these minerals is more complicated and complex in process and separating equipment, and there is strong correlation among all processes in the whole process, so the sorting index and safety and stability of the equipment are also crucial.

Brief Description of the Drawings Fig.1 is the main view of the wet high intensity magnetic separator of the invention;
Fig.2 is a schematic diagram of the stereoscopic structure of the wet high intensity magnetic separator of the invention;
Fig.3 is a schematic diagram of the stereoscopic structure of the other side of the wet high intensity magnetic separator removing the cover body;
Fig.4 is a schematic diagram of the stereoscopic structure of the magnetic yoke in the wet high intensity magnetic separator of the invention;
Fig.5 is a schematic diagram of the stereoscopic structure of the upper left magnetic pole in the wet high intensity magnetic separator of the invention;
Fig.6 is a schematic diagram of the stereoscopic structure of the middle and lower magnetic poles of the wet high intensity magnetic separator of the invention;
Fig.7 is a schematic diagram of the stereoscopic structure profile of a coil in the wet high intensity magnetic cutaway centerline ring of the invention;
Fig.8 is a schematic diagram of the stereoscopic structure profile of a coil shell in the wet intensity strong magnetic cutaway centerline ring of the invention;
Fig.9 is a schematic diagram of the stereoscopic structure of the heat exchanger of the wet high intensity magnetic separator of the invention;
Fig.10 is a schematic diagram of the stereoscopic structure of the ring of the wet high intensity magnetic separator of the invention;
Fig.11 is a schematic diagram of the stereoscopic structure of the ring frame of the wet high intensity magnetic separator of the invention;
Fig.12 is a schematic diagram of the stereoscopic structure of the matrix box module of the wet high intensity magnetic separator of the invention;
Fig.13 is a schematic diagram of the stereoscopic structure profile of the left bearing pedestal section of the ring drive part of the wet high intensity magnetic separator of the invention;
Fig.14 is a schematic diagram of the stereoscopic structure of the discharging water tank of the wet high intensity magnetic separator of the invention;
Fig.15 is a schematic diagram of the stereoscopic structure of the discharging water slag box of the wet high intensity magnetic separator of the invention;
Fig.16 is a schematic diagram of the relative position of the magnetic material collecting hopper, the middling hopper and the magnetic yoke and the ring frame of the wet high intensity magnetic separator of the invention;
Fig.17 is a schematic diagram of the relative position of the coarse particle separating sieve plate and the feeding hopper of the wet high intensity magnetic separator of the invention;
Fig.18 is a schematic diagram of the stereoscopic structure of the shield which is located outside the ring of the wet high intensity magnetic separator of the invention;
Fig.19 is the main view of the relative position of the non-magnetic material collecting hopper and

2 Date Recue/Date Received 2021-04-07 the pulsation mechanism and bracket of the wet high intensity magnetic separator of the invention;
Fig.20 is a schematic diagram of stereoscopic structure of the bracket part at the relative position of the non-magnetic material collecting hopper and pulsation mechanism and bracket of the wet high intensity magnetic separator of the invention;
Fig.21 is a schematic diagram of the stereoscopic structure of the pulse box removing the lid of the wet high intensity magnetic separator of the invention;
Fig.22 is a schematic diagram of the circuit structure of the safety and isolation system and the adjustment system of the wet high intensity magnetic separator of the invention;
Fig.23 is the schematic principle diagram of the vertical ring wet high intensity magnetic separator with forced oil cooling;
Fig.24 is the isometric view of the vertical ring wet high intensity magnetic separator with forced oil cooling in Fig.22;
Fig.25 is an isometric cross-sectional view of the magnetic yoke in Fig.24;
Fig.26 is an isometric cross-sectional view of the coil assembly in Fig.24;
Fig.27 is an isometric view of the windings in Fig.26;
Fig.28 is an isometric view of the ring in Fig.24;
Fig.29 is an isometric view of the ring frame in Fig.24;
Fig.30 is an isometric view of the concentrate hopper and the concentrate ore transition hopper in Fig.24;
Fig.31 is an isometric cross-sectional view of the concentrate aggregate trough in Fig.24;
Fig.32 is the electric control schematic diagram of the vertical ring wet high intensity magnetic separator with forced oil cooling.
Summary .. In order to overcome the problems of poor regulation ability and poor safety and stability of the existing technology, the invention provides a wet high intensity magnetic separator. The wet high intensity magnetic separator of the invention is a magnetic separator which has a strong ability to capture the magnetic particles in the magnetic mineral pulp, and is a kind of modular design electromagnetic equipment, and is a strong magnetic separator which can separate and concentrate the weak magnetic particle material in pulp and the pulp in the separation area is pulsating and oscillating when separating.
According to the first technical scheme of the invention, the invention provides a wet high intensity magnetic separator, which comprises a magnetic excitation system, a sorting collection system, a safety and isolation system and an adjustment system. The magnetic excitation system is used to .. provide a background magnetic field for wet high intensity magnetic separator to sort; the sorting collection system, with the background magnetic field provided by the magnetic excitation system, makes the magnetic material in the pulp containing magnetic minerals separated from the non-magnetic material by magnetic separation and collected to the different collecting regions

3 Date Recue/Date Received 2021-04-07 respectively; the safety and isolation system is used to isolate the particle from the wet high intensity magnetic separator, to isolate the granularity of the feeding materials, to isolate the impurities in the water, to isolate pollution from the insulating coolant, to isolate the magnetic field from the fear magnetic components (such as a bearing, a motor, a reducer, etc.) and to provide safety protection for important components (such as motors, coils, matrix box modules, etc.) and personal safety protection for operators; and the adjustment system is used for adjusting the background magnetic field intensity of the magnetic excitation system, and the ring speed (equivalent to the sorting time of the material) of the sorting collection system, the regulation of pulsation amplitude and frequency (equivalent to the vibration intensity and frequency of the ore-selected pulp), the adjustment of the height of the liquid level (the correlation division length) and the adjustment of the quantity/angle of the rinsing water and discharging water.
The magnetic excitation system, the sorting collection system, the safety and isolation system and the adjustment system are designed in accordance with the modular design, alternatively, the part system of the influence sorting index of the magnetic excitation system, the sorting collection system, the safety and isolation system and the adjustment system is modularized design, then the corresponding module is replaced according to the different sorting material and working condition, so as to achieve the ideal processing index.
The magnetic excitation system comprises a magnetic yoke 1, a coil 2 and a heat exchange device 3, wherein the magnetic yoke 1 comprises a left upper magnetic pole 110, a right upper magnetic pole 120, a left magnetic conductive plate 130, a right magnetic conductive plate 140 and a lower magnetic pole 150, wherein the left upper magnetic pole 110 and the right upper magnetic pole 120 are connected with an upper magnetic pole yoke plate 111 and an upper magnetic pole iron core module 112 by welding or fastener fastening, the lower magnetic pole 150 is connected with two symmetrical lower magnetic pole yoke plates 151 and a lower magnetic pole core module 152 and a water retaining plate 153 located on its two sides by welding or fastener fastening.
According to different working conditions, the wet high intensity magnetic separator is matched with a different upper magnetic pole iron core module 112 and a lower magnetic pole core module 152. According to different anti-corrosion requirements, the upper magnetic pole iron core module 112 and the lower magnetic pole core module 152 of the wet high intensity magnetic separator are divided into three grades: the first grade is no special treatment, and the second grade is to spray water resistant and abrasion resistant coating on the contact surface of the magnetic pole iron core and the pulp, and the third grade is to increase the replaceable sacrificial anode on the basis of the second grade. For the use place of the high content strong magnetic minerals in the separation pulp, the upper magnetic pole iron core module is used to do the acute angle roundness treatment and / or add nonmagnetic stainless steel magnetic separation processing around the flow clearance 113, and the lower magnetic pole iron core module isn't used to do the acute angle roundness treatment and / or add nonmagnetic stainless steel magnetic separation processing

4 Date Recue/Date Received 2021-04-07 around the flow mine water gap 154.
The coil 2 comprises a coil shell 210 and a coil winding 220 and the insulating coolant 230 of the coil shell 210 immersed the coil winding 220, wherein the coil shell 210 comprises an inner enclosing plate 211, an upper magnetic conductive plate 212, a lower magnetic conductive plate 213, and a outer enclosing plate 214. The inner enclosing plate 211 of the coil shell 210 is made of nonmagnetic steel plate, while the upper magnetic conductive plate 212, the lower magnetic conductive plate 213 and the outer enclosing plate 214 are made of high magnetic conductive steel plate. The coil winding 220 is placed in the coil shell 210 and an insulating bar 240 is used to pad the coil winding and isolate the coil winding from the coil shell 210 to ensure complete insulation from the coil shell 210 and preset the flow passage of the insulating coolant. When the coil winding 220 is being winded, an insulating bar 240 is also used to pad the insulation coolant flow passage in the inner coil winding, and the lower part of the coil shell 210 is provided with a coolant inlet 215, and the upper part of the coil shell 210 is provided with a coolant outlet 216 away from the coolant inlet 215, and the insulating coolant 230 flows through the coolant inlet 215 into the coil shell 210 and flows through the coil winding and the insulated coolant passages between the coil winding 220 and the coil shell 210, and then outflow from the coolant outlet 216,and said flow in the coolant channel is uniform, and there is no flow dead angle, so it can take away the heat generated when the coil winding 220 is excitation.
A distributary cavity 217 is arranged between the coolant inlet 215 and the coil winding 220, and a conflux cavity 218 is arranged between the coolant outlet 216 and the coil winding 220. The heat exchange device 3 comprises a pipeline 310, a pump 320 and a heat exchanger 330. The inlet of the pump 320 is connected with the coolant outlet 216 of the coil through the pipeline 310, and the outlet of the pump 320 is connected with the heat exchanger 330, while the other end of the heat exchanger 330 is connected with the coolant inlet 215 of the coil. According to different conditions of the field, the heat exchanger 330 can be any conventional closed-loop heat exchanger.
There is a drain valve 340 at the lowest part of the insulating coolant 230 between the pump 320 and the coolant outlet 216, and the valve can be used to empty the insulating coolant 230 of the coil 2 and the heat exchange device 3, and it can also cooperate with the pump 320 to inject an insulating coolant 230 to the coil 2 and the heat exchange device 3.
The sorting collection system comprises a ring 4, a ring drive parts 5, a feeding hopper 6, a flushing hopper 7, a discharging water tank 8, a magnetic material collecting hopper 9, a middling hopper 10, a non-magnetic material collecting hopper 11, a pulsation mechanism 12, a liquid level observation hopper 13. Wherein, the ring 4 is one of the key components of the invention, and a sorting region is produced within the magnetic yoke 1 of the coil 2 excitation. At this point, the ring .. 4 can take the matrix box module 420 into/out of the separation zone, the ring drive parts 5 provides rotational power for the rotation of the ring 4, the feeding pulp flows from the feeding hopper 6 to enter in the sorting area, the flushing hopper 7 is responsible for rinsing of the material in the process of sorting, the discharging water tank 8 is responsible for flushing the magnetic material taken from the ring 4 out of the matrix box module 420, the magnetic material collecting

5 Date Recue/Date Received 2021-04-07 hopper 9 is responsible for collecting and summarizing these magnetic materials together to discharge out of the wet high intensity magnetic separator, and the non-magnetic material not selected out is collected by the non-magnetic material collecting hopper 11 and thereafter discharged out of the wet high intensity magnetic separator, the material and pulp water out of the .. division constituency but not come to upper part of the magnetic material collecting hopper 9 flows into the middling hopper 10, the pulsation mechanism 12 can make the pulp of the division keep in the concussion state when in the sorting process. It is advantageous to the separation of minerals and impurities, and the liquid level observation hopper 13 can observe the height of separation liquid level out of the magnetic yoke 1 and the separation area and provide the basis for the adjustment of the height of the separation liquid level.
The ring 4 comprises a ring frame 410 and a matrix box module 420. The ring frame 410 comprises a hub 411, a web 412, a support ring 413 and a skeleton 414, wherein the support ring 413 and the skeleton 414 are made of non-magnetic stainless steel. The matrix box module 420 is installed between two skeletons 414 which are circumferential adjacent, in addition to that small wet high intensity magnetic separator is arranged with a single row of matrix box module 420, the matrix box module 420 on the two sides of the web 412 is in the same staggered arrangement.
(That is, the number of matrix boxes on both sides of the web is the same, and every time a matrix box module 420 starts to enter the sorting space, there must be a corresponding matrix box module 420 which is in half of the separation space).
.. The matrix box module 420 comprises two or more pieces of non-magnetic frame plate 421, and a high magnetic medium 422 which is located between the non-magnetic frame plate 421 and an ear plate 423. The matrix box module 420 can be fixed to the adjacent two skeletons 414 through the ear plate 423.In the matrix box module 420, the high magnetic medium 422 includes both rod and mesh media, as well as steel wool or any other form of magnetic material which can be filled between the non-magnetic frame plate 421 and will eventually be placed on the ring frame 410 and can produce induction magnetic field when using in the wet high intensity magnetic separator;
in the matrix box module 420, the high magnetic medium 422 includes both tight arrangement and loose arrangement, both uniform arrangement of the media gap and gradient arrangement of the media gap, both a single form of magnetic conducting media arrangement and a variety of forms of magnetic conducting media blending arrangement. When the pulp is corrosive, the matrix box module 420 is divided into three anti-corrosion grades: the first grade is high magnetic medium 422 using anti-corrosion material; the second grade provides overall coating treatment of the matrix box module 420 on the basis of first level; the third grade increases the sacrificial anode corrosion on the basis of the second grade.
According to the actual operating conditions in the field the wet high intensity magnetic separator is equipped with different matrix box module 420. The ring drive parts 5 comprises a middle shaft 510, a magnetic flux-tight sleeve 520, a middle shaft bearing housing 530, a gear drive 540, a ring drive motor 550 and a reducer 560. The wet high intensity magnetic separator further comprises the feeding hopper 6 and the flushing hopper 7, and the upper magnetic pole iron core module 112,

6 Date Recue/Date Received 2021-04-07 which is connected with the feeding hopper 6, is provided with a flow clearance 113 which leads the pulp into the sorting area. The material pulp flows from the feeding hopper 6 into the wet high intensity magnetic separator, and then through the flow clearance 113 flows into the ring 4 of sorting area. The flushing hopper 7 is equipped with rinsing water, the upper magnetic pole iron core module 112 connected with the flushing hopper 7 is provided with water gap 114 that the rinsing water can flow into the separation area. The rinsing water can selectively flush the trapped mineral and the impure mineral in the captured magnetic material from the matrix box module 420 to allow it to enter the non-magnetic material collecting hopper 11. The discharging water tank 8 is equipped with the mine water spraying module 810, it can form different discharging water by replacing different mine water spraying module 810, that is, changing the water spraying position/water spraying angle and the amount of spraying water when using the same discharging water pressure. The two sides of the discharging water tank 8 are respectively provided with rinsing water outlet 820 and water flow exit 830, and all the water supply ports using industrial circulating water are unified to the water inlet of the discharging water tank 8. The discharging water tank 8 washes out all the materials adsorbed in the matrix box module 420 by spraying discharging water to the ring 4.
The magnetic material collecting hopper 9 comprises a collection part 910, a diversion part 920 and a summary part 930. Among them, the collection part 910 and the diversion part 920 are symmetrical two parts about the web 412 and respectively locate on the two sides of the web 412, the summary part 930 is one part that symmetrical about the center of the web 412. The collection part 910 is above the upper magnetic pole iron core module 112, from the left of the flushing hopper 7 inside the ring 4 to the lower right of the discharging water tank 8 inside the ring 4. The summary part 930 is located at the lower part of the coil 2 which is in the left side of the magnetic yoke 1. The diversion part 920 is connected to the outlet of the collection part 910 and the two ends of the summary part 930. It can catch all the magnetic material which is taken to the top of the collection part 910 after leaving from the sorting area along the ring 4 to the summary part 930, and then discharge from the wet high intensity magnetic separator uniformly.
The middling hopper 10 is located on the left side of the lower magnetic pole core module 152 and clings to the lower magnetic pole core module 152. The feeding port is located in connecting portion of the lower left side of the ring 4 and the magnetic yoke 1 to the left outer part of the ring 4, and the width crosses the ring 4 axially along the ring 4. It can collect the material which leaves from the sorting area along the ring 4 but not to top portion of the magnetic material collecting hopper 9.
The non-magnetic material collecting hopper 11 is installed in the lower part of the magnetic yoke 1 and is connected with the lower part of the magnetic yoke 1, and it can catch the pulp flowing out of the lower magnetic pole core module 152 completely. The non-magnetic material collecting hopper 11 is divided into two disconnected collection intervals, the right collection interval 1110 is located below the feeding hopper 6 and the middle shaft 510, the left collection interval 1120 is located below the flushing hopper 7. The bottom of the two-collecting space is provided with one or more non-magnetic material discharging valve 1130 respectively.

7 Date Recue/Date Received 2021-04-07 When the non-magnetic material collecting hopper 11 is removed from the lower magnetic pole core module 152, it can be stabilized on the device support to facilitate the separator dismantling of the split-body transport and reassembly of the wet high intensity magnetic separator.
The pulsation mechanism 12 comprises pulsating box 1210, belt pulley group 1220, pulsating motor 1230, pulsating push plate 1240, rubber soft connection 1250. The pulsating box 1210 is equipped with an eccentric wheel module 1211. After the deceleration of the driving the belt pulley group 1220, the pulsating motor 1230 drives the eccentric wheel module 1211 in the pulsating box 1210, it can transfer the circular motion generated by the motor into the left-right reciprocating movement. The left end of the pulsating box 1210 is provided with a push rod 1212, the one end of the push rod 1212 is connected with the eccentric wheel module 1211 and the other end is connected with the pulsating push plate 1240, and the push rod 1212 transmits the reciprocating force of the eccentric wheel 1211 in the pulsating box to the pulsating push plate 1240. The outer side of the pulsating push plate 1240 and the right collection interval 1110 of the non-magnetic material collecting hopper are connected through the rubber soft connection 1250. When the pulsating box is running, the left-right reciprocating force can be passed to the pulp which is located on the right side of the collection interval 1110 through the pulsating push plate 1240, it can make the pulp pulsating vibrate, and then the pulsating vibration is extended to the sorting area along the pulp to sorting area.
The safety and isolation system comprises setting the coarse particle separation sieve plate 14 in the feeding hopper 6 or setting the same functional unit before feeding, preventing large particles from entering into the upper magnetic pole iron core module 112 and the matrix box module 420 which may cause clogging and affecting the material passing and sorting index.
In addition, adding the discharging water slag box 15 before the discharging water tank 8, the discharging water slag box 15 is equipped with a slanting slag sieve plate 1510, after the industrial circulating water flowing into the discharging water slag box 15 it is isolated by the slanting slag sieve plate 1510, of which large particles of impurities and light impurities are isolated, as the slanting slag sieve plate 1510 is inclined downward along the flow direction, so the impurity separated is effected by the force of the flow downward momentum and it will flow to the lower part of the discharging water slag box 15 and converge under the bottom of the discharging water slag box 15, thus, preventing the large particulate impurities of discharging water from entering into the discharging water tank 8 jamming the discharging water spraying hole and affecting the discharging effect and sorting index.
In the bottom of the discharging water slag box 15 there sets manual or automatic slag drain valve 1520, which can manually or automatically clean the impurity particles isolated from the .. discharging the water slag box 15 regularly. After flowing through the coil winding 220, the insulation coolant 230 in coil 2 can fully take the heat generated by the coil winding 220 to the heat exchange device 3, and discharge through the heat exchanger 330. During the whole process the insulation coolant 230 is in closed circuit, no outside pollution, all the exchange of heat with the outside is completed in the heat exchanger 330. The middle shaft 510 and the ring 4 adopt two Date Recue/Date Received 2021-04-07 narrow magnetic flux-tight sleeve 520 for connections, reducing the contact area between the middle shaft 510 and the ring 4 while ensuring torque transmission, at the same time, the material of the magnetic flux-tight sleeve 520 adopt alloy steel or non-magnetic steel with much poor permeability than the magnetic yoke, therefore reducing the transmission of magnetic field which through the web 412 and the middle shaft 510 to the middle shaft bearing 531, the ring drive motor 550 and the reducer 560; under the middle shaft bearing housing 530 and the ring drive motor 550 and the reducer 560 there sets non-magnetic stainless steel plate, further reducing the amount of the magnetic field passing through the middle shaft bearing 531 and the ring drive motor 550 and the reducer 560, thereby extending the service life of the middle shaft bearing 531 and the ring drive motor 550 and the reducer 560. The front-end of the ring drive motor 550 and the pulsating motor 1230 and the pump 320 are equipped with motor protector 16, when the detection of hyper-flow or lack of phase it can timely protect and alarm.
Temperature probe 17 is provided near the coil coolant inlet pipeline 310 and the coolant outlet 216 and at the top of the insulation coolant 230, real-time monitoring the temperature and temperature difference of the insulation coolant in coil inlet and outlet, when the temperature is too high or the temperature difference is too large, it will send out the fault alarm; The coil coolant inlet pipeline 310 is provided with flow switch 18, monitoring the flow state of the insulating coolant 230 and sending out the fault alarm when the flow is not up to the set requirement.
All operating parts of the device are covered with a shield 19, and an observation window 1910 shall be set for the parts needed to observe the operation. The observation window 1910 is protected by a steel net to ensure that the personnel are not exposed to the running parts.
The adjustment system comprises the regulation of the excitation current of the wet high intensity magnetic separator coil 2. The excitation of the wet high intensity magnetic separator is adopted constant direct current inputting, inputting preseted current by the current set unit 2011, and then through constant current controller 2010, controlling SCR (or diode-coupled IGBT) rectifier module 20 converts industrial electricity into a preset dc input into coil 2, in the process of inputting the current into the coil 2 the hall element or other similar function element 21 is provided to monitor the current and feedback to constant current controller. Then the output voltage is adjusted by the constant current controller 2010 to match the detection value and the preset value, thus ensuring that the current of the wet high intensity magnetic separator input coil 2 is in accordance with the preset current of the current setting unit 2011.
The rotate speed of the ring 4 and the pulsation frequency of the pulsating box 1210 of the wet high intensity magnetic separator are realized by changing the output frequency of relay ring converter 22 and pulse frequency converter 23 in adjustment system respectively.
The pulsating amplitude of the wet high intensity magnetic separator is achieved by adjusting the eccentricity of the eccentric wheel module 1211 in the pulsating box. The liquid level height in the liquid level observation hopper 13 is monitored by the manual or liquid level meter 24 , and then achieved manually or automatically by adjusting the open degree of one or more non-magnetic material discharging valve 1130 at the bottom of the non-magnetic material collecting hopper 11.

Date Recue/Date Received 2021-04-07 The rinsing water quantity is realized by adjusting the opening of the valves of the rinsing water outlet 820 that on the two sides of the discharging water tank 8, and then provided to the flushing hopper 7 evenly through the water separator 840 in the flushing hopper 7, after shunting the rinsing water can be more stable to restrain the non-magnetic fine particle in the pulp of the sorting area and the non-magnetic material taken in the matrix box module 420.
According to the second technical scheme of the invention, a vertical ring wet high intensity magnetic separator with forced oil cooling comprises seven parts: magnetic excitation system, sorting system, pulsation system, collection system, supporting system, driving system, protection system; The magnetic excitation system provides working magnetic field, sorting system provides continuously separating the fine tailings, and the pulsating system provides pulsating effect to the slurry of the vertical ring wet high intensity magnetic separator with forced oil cooling; The collection system is used for feeding, flushing, collecting the fine tailings, and adjusting the level of the water; The supporting system is fixedly connected with the field foundation and supports the main body of the device; the driving system provides power for the ring and pulsation of the vertical ring wet high intensity magnetic separator with forced oil cooling;
The protection system is used to protect the safety of persons and device.
Compared with the existing technology, the wet high intensity magnetic separator of the invention comprises four systems, namely magnetic excitation system, sorting collection system, safety and isolation system and adjustment system, which are composed of several components or modules, the reliable and stable strong magnetic separation of weakly magnetic minerals is realized by the cooperation of different systems. The invention has the following beneficial effects:
(a) The present invention is not only suitable for the enrichment of weakly magnetic materials especially weakly magnetic minerals in low-grade weakly magnetic minerals, but also for the enrichment of weakly magnetic minerals in strong and weak symbiotic magnetic minerals, and the removal of magnetic impurities in non-metallic minerals which considers magnetic minerals as impurities.
(b) The invention not only has many adjustable parameters, but also adopts modular design for some parts which may seriously affect the sorting index, then according to the different material and working conditions to adjust the multiple sorting parameters of the device or replace the corresponding modules, so as to achieve the maximum fitness of the selection of materials and on-site conditions and get the deal sorting index.
(c) The invention also implements a number of measures to improve the stability of device operation and sorting, which can improve the working stability of wet high intensity magnetic separator and prolong the service life of wet high intensity magnetic separator, so as to ensure the smooth flow of the whole separation process and obtain reliable and stable sorting index.
Specific Embodiments The technical solution in embodiments of the present invention is clearly and completely described below with reference to drawings in the embodiments of the present invention.
Obviously, the to Date Recue/Date Received 2021-04-07 described embodiments are only a portion of embodiments in the present invention but not all the embodiments of the present invention. Based on the embodiments in the present invention, an ordinary person skilled in the art can obtain all other embodiments without involving any inventive effort, which all shall fall within the protective scope of the present invention. Besides, the protective scope of the present invention should not be regarded as limit in the following specific structures or specific parameters. In addition, the scope of protection of the present invention should not be limited to the following specific structures or components or specific parameters.
In order to better understand the specific embodiment of the invention, first of all the fuzzy concepts mentioned in this paper are defined as follows:
High magnetic material - metal material with the largest relative permeability v. rm Soft magnetic material - metal material with the coercive force HC--300 A/m;
Non-magnetic material - metal material with the largest relative permeability i.irm--1.6;
Magnetic particle (material) - material with lower the magnetization coefficient but can be selected by strong magnetic field;
No (non) magnetic particles (materials) ¨ material with no magnetism or the magnetic purity of the material particles is not enough (in the enrichment of weak magnetic material);
Up, down, left, right, clockwise, counterclockwise ¨ refer to the corresponding direction of Figure 1 when not specified;
Upper magnetic pole ¨ the same as the left and the right upper magnetic pole;
Magnetic conductive plate ¨ the same as the left and the right magnetic conductive plate;
Upper magnetic pole iron core ¨ the same as the left and the right upper magnetic pole iron core;
Upper magnetic yoke plate ¨the same as the left and the right upper magnetic yoke plate;
Iron core or magnetic pole core ¨ the same as the upper and lower magnetic pole iron core;
XX module ¨the name for XX modular design, indicating that this part has a variety of interchangeable forms, and XX refer to the same;
Closed loop heat exchanger ¨Refers to the heat exchanger that the cold and hot medium does not contact with each other when the hot medium heat exchange with the outside world.
The sign of the accompanying drawings in Figure 1 to Figure 22 are as follows.
Fig.1 is the main view of the wet high intensity magnetic separator of the invention; the sign shown in Figure 1: 1-magnetic yoke 2-coil 4-ring 5-ring drive parts 6-feeding hopper 7-flushing hopper

8-discharging water tank 9-magnetic material collecting hopper 11-non-magnetic material collecting hopper 12-pulsation mechanism 13- liquid level observation hopper 19-shield 24-liquid level meter;
Fig.2 is a schematic diagram of the stereoscopic structure of the wet high intensity magnetic separator of the invention; the sign shown in Figure 2: 1-magnetic yoke 2-coil 5-ring drive parts 6-feeding hopper 7-flushing hopper 8-discharging water tank 9-magnetic material collecting hopper 11-non-magnetic material collecting hopper 12-pulsation mechanism 13- liquid level observation II

hopper 15-discharging water slag box 19-shield 24-liquid level meter 25-bracket;
Fig.3 is a schematic diagram of the stereoscopic structure of the other side of the wet high intensity magnetic separator removing the cover body; the sign shown in Figure 3: 1-magnetic yoke 2-coil 3-heat exchanger 4-ring 5-ring drive parts 6-feeding hopper 7-flushing hopper .. 8-dsicharging water tank 9-magnetic material collecting hopper 11-non-magnetic material collecting hopper 12-pulsation mechanism 15-discharging water slag box 17-temperature probe 18-flow switch 25-bracket;
Fig.4 is a schematic diagram of the stereoscopic structure of the magnetic yoke 1 in the wet high intensity magnetic separator of the invention; the sign shown in Figure 4: 110-left upper magnetic .. pole 120-right upper magnetic pole 130-left magnetic conductive plate 140-right magnetic conductive plate 150-lower magnetic pole;
Fig.5 is a schematic diagram of the stereoscopic structure of the upper left magnetic pole 110 in the wet high intensity magnetic separator of the invention; the sign shown in Figure 5: 111-upper magnetic pole yoke plate 112-upper magnetic pole iron core module 113-flow clearance 114-water gap;
Fig.6 is a schematic diagram of the stereoscopic structure of the lower magnetic poles 150 of the wet high intensity magnetic separator of the invention; the sign shown in Figure 6: 151-lower magnetic pole yoke plate 152-lower magnetic pole core module 153-water retaining plate 154-flow mine water gap;
Fig.7 is a schematic diagram of the stereoscopic structure profile of the coil 2 in the wet high intensity magnetic separator of the invention; the sign shown in Figure 7: 210-coil shell 220-coil winding 230-insulating coolant 240-insulating bar;
Fig.8 is a schematic diagram of the stereoscopic structure profile of the coil shell 210 in the wet high intensity magnetic separator of the invention; the sign shown in Figure 8: 17-temperature probe 211-inner enclosing plate 212-upper magnetic conductive plate 213-lower magnetic conductive plate 214-outer enclosing plate 215-coolant inlet 216-coolant outlet 217-distributary cavity 218-conflux cavity;
Fig.9 is a schematic diagram of the stereoscopic structure of the heat exchanger 3 of the wet high intensity magnetic separator of the invention;
the sign shown in Figure 9: 17-temperature probe 18-flow switch 215-coolant inlet 216-coolant outlet 310-pipeline 320-pump 330-heat exchanger 340-drain valve;
Fig.10 is a schematic diagram of the stereoscopic structure of the ring 4 of the wet high intensity magnetic separator of the invention; the sign shown in Figure 10: 410-ring frame 420-matrix box module;
Fig.11 is a schematic diagram of the stereoscopic structure of the ring frame 410 of the wet high intensity magnetic separator of the invention; the sign shown in Figure 11:
411-hub 412-web 413-support ring 414-skeleton;
Fig.12 is a schematic diagram of the stereoscopic structure of the matrix box module 420 of the wet high intensity magnetic separator of the invention; the sign shown in Figure 12:

421-non-magnetic frame plate 422-high magnetic medium 423-ear plate;
Fig.13 is a schematic diagram of the stereoscopic structure profile of the left bearing pedestal section of the ring drive part 5 of the wet high intensity magnetic separator of the invention; the sign shown in Figure 13: 510-middle shaft 520-magnetic flux-tight sleeve 530-middle shaft bearing housing 540-gear drive 550- ring drive motor 560-reducer 531-middle shaft bearing;
Fig.14 is a schematic diagram of the stereoscopic structure of the discharging water tank 8 of the wet high intensity magnetic separator of the invention; the sign shown in Figure 14:
810-discharging water spraying module 820-rinsing water outlet 830-water flow exit 840-water separator;
Fig.15 is a schematic diagram of the stereoscopic structure of the discharging water slag box 15 of the wet high intensity magnetic separator of the invention; the sign shown in Figure 15:
1510-slanting slag sieve plate 1520-slag drain valve;
Fig.16 is a schematic diagram of the relative position of the magnetic material collecting hopper 9, the midding hopper 10 and the magnetic yoke 1 and the ring frame 410 of the wet high intensity magnetic separator of the invention; the sign shown in Figure 16: 1-magnetic yoke 6-feeding hopper 10- middling hopper 410-ring frame 910-collection part 920-diversion part 930-summary part;
Fig.17 is a schematic diagram of the relative position of the coarse particle separating sieve plate 14 and the feeding hopper 6 of the wet high intensity magnetic separator of the invention; the sign shown in Figure 17: 14-coarse particle separation sieve plate 6-feeding hopper;
Fig.18 is a schematic diagram of the stereoscopic structure of the shield 19 which is located outside the ring of the wet high intensity magnetic separator of the invention; the sign shown in Figure 18: 1910- observation window;
Fig.19 is the main view of the relative position of the non-magnetic material collecting hopper 11 and the pulsation mechanism 12 and bracket 25 of the wet high intensity magnetic separator of the invention; the sign shown in Figure 19: 1110-right collection interval 1120-left collection interval 1130-non-magnetic material discharging valve 1210-pulsating box 1220-belt pulley group 1230-pulsating motor 1250-rubber soft connection;
Fig.20 is a schematic diagram of stereoscopic structure of the bracket part at the relative position of the non-magnetic material collecting hopper 11 and pulsation mechanism 12 and bracket 25 of the wet high intensity magnetic separator of the invention; the sign shown in Figure 20: 1110- right collection interval 1120-left collection interval 1130-non-magnetic material discharging valve 1210-pulsating box 1220-belt pulley group 1230-pulsating motor 1240-pulsating push plate 1250-rubber soft connection 25-bracket;
Fig.21 is a schematic diagram of the stereoscopic structure of the pulse box 1210 removing the lid of the wet high intensity magnetic separator of the invention; the sign shown in Figure 21:
1211-eccentric wheel module 1212-push rod 1220-belt pulley group;
Fig.22 is a schematic diagram of the circuit structure of the safety and isolation system and the adjustment system of the wet high intensity magnetic separator of the invention; the sign shown in Figure 22:
16-motor protector 20-SCR (or diode-coupled IGBT) rectifier module 2010-constant current controller 2011-current setting unit 21-hall element or other similar function element 22-relay ring converter 23- pulse frequency converter 24-liquid level meter 220-coil winding 550-ring drive motor 1230-pulsating motor 320-pump 1520-slag drain valve (with timing automatic switch function) 1130-non-magnetic material discharging valve (automatic control).
The sign shown in Figure 23- Figure 32 is labeled as follows: 110/120-upper magnetic pole 130/140-magnetic conductive plate 150-lower magnetic pole 153-water retaining plate 160-up and down magnetic connector 210-coil shell 220-coil winding 240-insulating bar 241-insulating bar bracket 250-expansion box 320-pump 330-heat exchanger 410-ring frame 412-web 420-matrix box module 5-ring drive parts 510-middle shaft 6-feeding hopper 7-flushing hopper 8-discharging water tank 910-collection part 920-diversion part 930-summary part 11-non-magnetic material collecting hopper 1131-valve adjusting rod 1210-pulsating box 1230-pulsating motor 1240-pulsating push plate 1250-rubber soft connection 13-level observation hopper 15-discharging water slag box 19-shield 25-bracket.
The invention provides a wet high intensity magnetic separator, which comprises a magnetic excitation system, a sorting collection system, a safety and isolation system and a adjustment system. The magnetic excitation system is used to provide a background magnetic field for wet high intensity magnetic separator to sort; the sorting collection system, with the background magnetic field provided by the magnetic excitation system, makes the magnetic material in the pulp containing magnetic minerals separated from the non-magnetic material by magnetic separation and collected to the different collecting regions respectively; the safety and isolation system is used to isolate the particle from the wet high intensity magnetic separator, to isolate the impurities in the water, to isolate pollution from the insulating coolant, to isolate the magnetic field from the fear magnetic components (such as a bearing, a motor, a reducer, etc.) and to provide safety protection for important components (such as motors, coils, matrix box modules, etc.) and personal safety protection for operators; and the adjustment system is used for adjusting the background magnetic field intensity of the magnetic excitation system, and the ring rotation speed (equivalent to the sorting time of the material)of the sorting collection system, the regulation of pulsation amplitude and frequency (equivalent to the vibration intensity and frequency of the ore-selected pulp), the adjustment of the height of the liquid level (the correlation division length) and the adjustment of quantity/angle of the rinsing water and the discharge water. The invention has modular design to some parts which affect the sorting index and can replace the corresponding module according to the different material and working conditions, thus achieving the ideal beneficiation index.
The slower the rotary speed, the longer the sorting time of the material, the smaller the processing volume, when the ring speed is very slow the sorting effect is not obvious;
the pulsation amplitude and frequency are positively correlated with the oscillation intensity and frequency of the selected pulp respectively, and the level of liquid level is positively correlated with the length of the sorting part, and when the liquid level to small the sorting effect is obviously decreased, a calibration liquid level is generally set; the automatic monitoring device designed in the invention is mainly to monitor the liquid level, in which manual or automatic adjustment can be used to monitor the liquid level.
In the present invention, whether for weakly magnetic minerals or for non-metallic minerals which considers magnetic minerals as impurities, the purpose of the separation is to separate the magnetic particles from the non-magnetic particles or particles with insufficient purity, and if the magnetic particles are to be separated from the original mixed minerals, a strong enough magnetic trapping force must be provided.
The magnetic trapping force of magnetic particles is mainly determined by the average specific coefficient of magnetic particles, the intensity of separation magnetic field and the gradient. The average specific magnetic coefficient of magnetic impurity particles in weakly magnetic and nonmetallic ores is relatively low. If you want to be able to generate enough magnetic trapping force in such a case, we should start with improving the intensity and gradient of the separation field.
The wet high intensity magnetic separator, based on the long-term research results of the magnetic separation technology, uses the principle of inductive magnetization to realize the coordinated application of the magnetic field intensity and gradient, that is, the magnetic soft magnetic material in the background magnetic field will be magnetized, magnetized soft magnetic material will affect the direction of magnetic field lines in the background, a small range of induction magnetization sites are formed on the near surface, and different magnetic fields will be formed by various materials and soft magnetic materials of different shapes. Soft magnetic material with a conductivity magnetic field and a tip (a variety of points, also including a round bar form) in the background magnetic field will be at the tip of a higher magnetic field than the background magnetic intensity, gradient magnetization field, the invention is based on this magnetized field to strongly capture the weak magnetic particles and the magnetic impurities in the non-metallic mineral particles in the material.
When the magnetic excitation system involved in the wet high intensity in the invention works, it will produce a background magnetic field area that can magnetization the soft magnetic material, here defines this area as a sorting area. Further, the magnetic excitation system comprises of a magnetic yoke, coil and heat exchanger, the coil generates a magnetic field when it is energized, and the magnetic field creates a semi-closed arc-shaped magnetic field region in the coil and the center of the magnetic yoke when it is converged and strengthened by the magnetic yoke, the magnetic field intensity of the field is changed with the input current of the excitation coil, which is the background magnetic field, and the region is the sorting region.
In order to introduce and discharge the pulp into the separation area, a certain number of the flow clearance can be set in the upper pole iron core and the lower magnetic pole iron core which can guide the ore pulp. As in the separation process some of the ore dressing plants will add some chemical agents to the pulp, so its separation slurry has different degrees of corrosion, and these corrosive pulp flow through the magnetic pole of the gap between the iron core will cause corrosion. lithe pole core is subjected to long-term corrosion, it will change its original thickness, thereby reducing the magnetic conductivity, resulting in weakening and changing the background field strength and magnetic field distribution of the wet high intensity magnetic separator, and ultimately affecting the stability of the sorting index; If the welding site is seriously corroded for a long time, it will affect its structural strength and service life. Even if it is a pulp that does not contain corrosive agents, the water contained in the long-term immersion will also make the magnetic pole iron core rust, although this part of the rust almost does not affect the device's magnetic properties and structural strength, but to the non-metallic minerals with very low iron content considering the magnetic material as impurities is particularly important.
In order to solve the corrosive effect on the performance index and service life, the upper pole iron core and the lower magnetic pole iron core of the magnetic yoke part are modular designed, and according to the required level of protection for three different levels of treatment: the first grade is no special treatment, applicable to the general non-corrosive separation process; and the second grade is to spray water resistant and abrasion resistant coating on the contact surface of the magnetic pole iron core and the pulp, suitable for a slightly corrosive or non-metallic mineral separation process; and the third grade is to increase the replaceable sacrificial anode on the basis of the second grade, suitable for the separation process of pulp with strong corrosive and especially corrosive ions, because the sacrificial anode can be replaced at any time, so this grade has a stronger anti-corrosion capacity.
In addition, if the concentration of strong magnetic minerals in the separation pulp is too high, the strong magnetic minerals flowing into the magnetic poles can easily be adsorbed in the sharp corner of the upper magnetic pole iron core module, it will occur on the pole iron core flow clearance blockage phenomenon in the long run. In view of this special condition, comparing with the lower magnetic pole iron core module, the upper magnetic pole iron core module is used to do the acute angle roundness treatment and add nonmagnetic stainless steel magnetic separation processing around the flow clearance. This configuration can greatly weaken the negative effect caused by the tip induction magnetic field of the upper pole iron core flow clearance and prevent the flow clearance of the upper pole iron core from clogging up.
The coil in the wet high intensity magnetic separator of the invention is the core part of the background magnetic field source, the coil can produce the background magnetic field onliy when it is energized, so the working stability of the coil directly determines the stability of the background magnetic field, future determines the stability of the sorting index. In order to obtain a stable excitation environment, the wet high intensity magnetic separator coil part of the invention adopts the forced insulating coolant circulating cooling mode. The coil windings are placed in the shell, and an insulating bar is used to pad the insulation coolant flow passage in the inner coil winding and between the coil winding and the shell to ensure the coil insulation and the heat generated by the coil winding excitation will be taken away when the insulation coolant flow through the passage.
However, because the main body of the invention is a magnetic separator, it is necessary to combine the structure characteristics of wet high intensity magnetic separator with the need of the magnetic circuit in the process of making the coil; and since the coils are just a part of the wet high intensity magnetic separator, so the structure of the coils must be compact.
According to the need of the magnetic field, the inner enclosure of the coil shell is made of non-magnetic stainless-steel material to prevent the magnetic field from being shorted out, while the upper magnetic conductive plate, the lower magnetic conductive plate and the outer enclosing plate are manufactured by high magnetic steel plate, which has the function of reducing the flux leakage and the converging magnetic field.
The coolant inlet is arranged at the lower part of the end of the coil length direction, and the .. corresponding coolant outlet is arranged at the upper part of the other end which is far away from the inlet. At the coolant inlet and outlet inside the coil shell there provides the distributary cavity and the conflux cavity respectively, it may cause the coolant flow more even and the stability inside the coil, avoids the generation of the flow dead angle, and guarantees the coil winding heat dissipation stability simultaneously also prevents the coolant from flushing the coil winding for long time that causes the winding damage. As the total amount of coolant required in the coil and inside the heat exchanger system is very large, so many liquids are routinely injected with a liquid injection pump. The drain valve of the coolant is arranged between the pump and the coolant outlet of the coil, and the outlet is arranged at the lowest point of the heat exchanger device. This valve can be used both in removing the insulation coolant that in the coil and the heat exchanger and can cooperate with the pump to inject the insulation coolant to the coil and the heat exchanger.
Secondly, the sorting collection system can create a high strength inductive magnetic field in the division made by the magnetic excitation system of the wet high intensity magnetic separator, and use this induction magnetic field to capture the magnetic particles, then take the magnetic particles captured out of the division, and use the discharging water flushing the particles into the magnetic .. material collecting hopper, while the non-magnetic part is not captured, it can flow through this induction magnetic field freely, then enter into the non-magnetic material collecting hopper, that is, the separation process between magnetic material and non-magnetic material is completed.
Sorting collection system comprises a ring, a ring drive part, a feeding hopper, a flushing hopper, a discharging water tank, a magnetic material collecting hopper, a non-magnetic material collecting hopper, a middling hopper, a pulsation mechanism, and a liquid level observation hopper. A large number of matrix boxes made of high conductivity magnetic soft magnetic materials are carried in the ring, and a ring structure is designed which can be fed into and out of the sorting area continuously. The sorting collection system also designs the ore feeding, discharging mechanism and magnetic material, non-magnetic material, middling collection mechanism, and pulsation, water washing mechanism helpful to improve the separation index, and the observation mechanism of separating liquid level which is necessary for sorting.
When the matrix box enters into the separation zone with the ring, the high magnetic medium made of by the high conductivity magnetic soft magnetic material is magnetized, and forms a high field strength, high gradient magnetization site at the tip, at this time the material to be selected enters into the wet high intensity magnetic separator from the feeding hopper, then flow into the ring through the flow clearance of the upper pole iron core. When the material flows through the ring it must go through this magnetic field area, at this time magnetic material particles are captured under the role of magnetic absorption, non-magnetic material particles are free from the .. role of magnetic force and flow through this magnetic field area into the non-magnetic material collecting hopper. The captured magnetic material rotates out of the separation area with the ring, after leaving the separation area, the magnetic medium's induced magnetic field disappears, and the magnetic trapping force disappears. When go to the top of the magnetic material collecting hopper, the captured material particles begin to fall and are collected by the magnetic material collecting hopper, and the material particles that fail to fall in time will be discharged into the magnetic material collecting hopper when transferred to the bottom of the discharging water tank, then the matrix box becomes clean again and then enters into sorting area with the ring, and that completes a sorting process.
The ring in the wet high intensity magnetic separator of the invention is the core component of the sorting collection system, and the matrix box is the most important part of the ring. Because the material is of many kinds and various forms, even the same type of mineral generally, there may be different differences such as different degrees of dissociation and different magnetic particle inlay size. In order to better adapt to the separation of these materials, the matrix box of the wet high intensity magnetic separator is modular designed, by changing the form and arrangement of .. soft magnetic material in the matrix box to make wet high intensity magnetic separator has stronger adaptability.
According to the different particle size of the site condition, the magnetic content of materials and the distribution of magnetic particle size, the matrix box module is divided into many forms.
Selecting from the materials or forms, the high magnetic medium includes both rod and mesh media, as well as steel wool or any other form of magnetic material which can be placed on the ring and can produce induction magnetic field when using in the wet high intensity magnetic separator; Classified by the arrangement, the high magnetic medium includes both tight arrangement and loose arrangement, both uniform arrangement of the media gap and matrix gap gradient increasing or decreasing arrangement, both a single form of magnetic conductionmatrix arrangement and a variety of forms of magnetic conduction matrix blending arrangement.
In the concrete application of the wet high intensity magnetic separator of the invention, for the pulp with corrosive material, the matrix box module is divided into three anti-corrosion grades: the first grade is the use of anti-corrosion material in the highly conductive magnetic medium, which is suitable for the general non-corrosive separation process; the second grade provides overall coating treatment of the matrix box module on the basis of first level, which is suitable for the separation process with slight corrosive working condition; the third grade increases the sacrificial anode corrosion on the basis of the second grade, which is suitable for the separation process with moderate and severe corrosion, especially the corrosive ionic working condition. According to different working conditions different matrix box modules are equipped with the wet high intensity magnetic separator, thereby enhancing the adaptive capacity of the wet high intensity magnetic separator and getting better and more stable sorting indicators.
In the production field, magnetic particles captured by magnetic media rotate out of the separation area with the ring, and the magnetic media induced magnetic field disappears after leaving the separation area, and the magnetism trapping force disappears. All the magnetic particles in the matrix box module should be flush into the magnetic material collecting hopper when the ring roates to the bottom of the discharging water tank, however, due to the diversity and complexity of the field conditions, the phenomenon of inadequate ore discharging is often occurred, and the inadequate ore discharging of the matrix box module will undoubtedly affect the sorting effect after the next step if it enters into the sorting area again. In order to discharge the mine better, the discharging water spray module is designed in the discharging water tank in the wet high intensity magnetic separator. By replacing this module, it is easy and quick to change the size of the blowhole (change the quantity of the water spray under the condition that the discharging pressure is not changed), the shape of the water spray (such as columnar, curtain, fan), form (continuous, pulse, parallel, cross) and a certain range of water spray position and spray angle (with the arrangement of the magnetic media in the matrix box module). Combined with the working condition field and the device parameters of the wet high intensity magnetic separator and the type of the matrix box module, then the better discharging effect can be achieved by changing the water spray module.
The pulsating push plate in the pulsation mechanism of the sorting collection system is connected with the right collection interval of the non-magnetic material collecting hopper through the rubber soft connection. The function of pulsating mechanism is to produce reciprocating pulsating vibration force and pass this pulsating vibration force to the pulp in the magnetic material collecting hopper.This pulsating shock force will extend along the pulp to the sorting area, so that the pulp in the induction magnetization field in the sorting area also has pulsating oscillation, which can help to reduce the inclusions caused by the adsorption and capture of magnetic material particles under the action of magnetic force and improve the purity of the selected magnetic particle materials.
The safety and isolation system are the core component of the wet high intensity magnetic separator of the invention, which can guarantee the operation stability of the device. As the feeding .. of the wet high intensity magnetic separator generally is milled out material, this part of the material will inevitably be mixed with a number of large-grained materials or sundries, and these large-grained materials or debris in the feeding link blockage in any position will have a serious impact on the sorting index, so the invention provides the large particle isolation mechanism in the feeding process, which can prevent large particles of material plugging the upper pole iron core .. flow clearance or matrix box module of the wet high intensity magnetic separator, thus reducing the interference of the separation process, improving the sorting stability of the device.
Because of the large amount of discharge water required to discharge ore, the industrial circulating water is usually used as discharging water in the production of the plant. In industrial circulating water, it is unavoidable that it contains large particles, especially lightweight floats, which fail to settle in time, may clog the blowhole in the discharging water tank. If a blowhole is blocked, it will directly lead to the matrix box which should be cleaned under the blowhole cannot be well discharged, when the matrix box enters into the sorting area again it will not be able to complete the separation of the normal work. In the past encountered such cases, it can only be allowed to, or turn down to clean the discharging water tank blowhole. Since the whole process of separation processes are highly correlated, and the wet high intensity magnetic separator is the core device of the whole process, so shutting down the wet high intensity separator must shut down the entire production line associated with all devices. The shutdown of these devices will have a great impact on production, while laissez-faire will also affect the separation of indicators, reduce the recycling utilization of resources, resulting in a huge waste of resources.
In order to solve this problem, before the entrance of discharging water there provides the slag box of discharging water of the wet high intensity magnetic separator, and the bottom of the slag box is provided with manual or automatic slag discharging valve which can conveniently remove the isolated impurities in time, thus ensure that the discharging water blowhole does not occur clogging phenomenon, reduce the effect of the separation index due to the inadequate discharging of the mine, and improve the stability of the sorting effect of the wet high intensity magnetic separator.
The coil is an important core component of the wet high intensity magnetic separator. The coil must be in a state of power to generate magnetic field, so that making the wet high intensity magnetic separator with magnetic power, and powering on the coil will lead to heat generated in the coil windings, if this part of the heat is not being transferred out in time, it will burn the coil.
The wet high intensity magnetic separator cools the coil windings by closed loop of the insulating coolant liquid. The insulating coolant flows through the inside of the coil and is fully thermally exchanged with the coil windings, then the heat is brought to the outside of the coil and the heat exchange with the outside occurs at the heat exchanger, the heat generated by the coil winding is transfered to the cooling water or air, after cooling in the heat exchanger the insulation coolant flows into the coil inside again, forming the closed-circuit cycle. The insulation coolant is not directly contact with the outside world in the entire process, it will not bring the external impurities into the coil inside and it will not produce the phenomenon that often occurs in water cooling coil due to the scale and the impact of the coil heat rediation, ensuring that the internal cleaning of the coil system without interference, so that the coil can stable work.
In order to ensure the stability, safety and reliability of the coil, the temperature probe is provided on the coil coolant inlet pipeline and near the coolant outlet and at the top of the insulation coolant, real-time monitoring the temperature and temperature difference of the insulation coolant in coil inlet and outlet, when the temperature is too high or the temperature difference is too large, it will send out the fault alarm; The coil coolant inlet pipeline is provided with flow switch, monitoring the flow state of the insulating coolant and sending out the fault alarm when the flow is not up to the set requirement. When the above fault parameter reaches a preset high value, the wet high intensity magnetic separator will stop excitation automatically and enter into the self-protection mode and send out the alarm signal, thus ensuring the coil portion of the wet high intensity magnetic separator is not damaged. When the alarm is issued, the point of failure and the cause of the failure can be identified, and the cause of the failure is found and resolved in time without any significant impact on the production, thus ensuring the stability of the operation of the device.
Further, as a strong magnetic separator, the inside of the device and around the magnetic yoke are filled with magnetic fields. The bearing that supports the rotating ring operation is prone to electric corrosion in the magnetic field, it is also easy to cause the phenomenon of small magnetic particles entering into the bearing, these conditions will shorten the life of the bearing; the magnetic field has more serious impact on the reducer whose internal gear main material is the magnetic conductive steel and motor containing rotor inside, it will increase the load of the reducer invisibly, reducing the working stability of the speed reducer and the motor.
In the invention, the magnetic flux is designed in accordance with the divergence direction of the magnetic field line, the magnetic line of force diverges outward with the coil as an energized solenoid and forms a magnetic line of force closed circuit and the magnet yoke is designed according to the direction of divergence of the magnetic line of force. Set the magnetic material in this direction can shield most of the magnetic field inside the magnetic material.
Usually, due to the structure formed by the combination of the ring web, middle shaft, middle shaft bearing housing, gear group, reducer, motor is basically consistent with the closed direction of the magnetic line of force, so in any case the combination of the web, middle shaft, middle shaft bearing housing, gear group, reducer, motor will become a closed magnetic circuit. Without any treatment, there will be a large number of magnetic lines of force passing through the bearing, reducer, motor, reducing its working stability. To solve this problem, the invention adopts cutting isolation method, that is, by increasing the air gap on this closed circuit and reducing the contact area (all in order to increase the reluctance of the magnetic circuit), the magnetic flux flowing through the closed circuit can be reduced, thus reducing the effect of bearing, reducer and motor on the magneitc field force, extending the overall service life of the wet high intensity magnetic separator.
The wet high intensity magnetic separator also sets the motor protector for all motors, protects and emits alarms in time of lack of phase or overload, prevents the motor from being damaged, and sets up a shield for the running parts to ensure the safety of the operator.
In order to observe the operation of the device, the observation window has been set up and a protective net has been set up on the observation window to prevent the operator from accidentally contacting the running parts to be harmed.
The adjustment system in the wet high intensity magnetic separator of the invention is used to adjust the working parameters, thereby improving the adaptability of the wet high intensity magnetic separator and getting better sorting index.
The separation field strength is the power source of the magnetic induction magnetic field, the size of the separation field strength is directly reflected in the sorting index, so the stability of the separation field strength is the most important index of working stability of the wet high intensity magnetic separator. The size of the separation field strength is achieved by changing the excitation current of the wet high intensity magnetic separator, the excitation coil of the wet high intensity magnetic separator is powered by DC, so the excitation current must be constant DC. Coil windings in the process of electricity will produce heat, resulting in coil temperature rise, with the temperature rise of the changes the winding resistance value will also change.
The input voltage at the plant site may not be very stable, and small changes will occur at any time. In order to realize the excitation current does not fluctuate with the external fluctuation and ensure the stability of the separation magnetic field, the excitation current of the wet high intensity magnetic separator coil is regulated through inputting preseted current in the current set unit, and then through constant current controller, controlling SCR (or diode-coupled IGBT) rectifier module converts industrial electricity into a preset dc input into coil, in the process of inputting the current into the coil the hall element or other similar function element is provided to monitor the current and feedback to constant current controller. Then the output voltage is adjusted by the constant current controller to match the detection value and the preset value, thus ensuring that the current of the wet high intensity magnetic separator input coil is in accordance with the preset current of the current setting unit.
According to the nature and quantity of the different feed materials, and the requirements of the sorting index that are hopeful to realize, we need to adjust the separation field strength, and adjust the ring speed and pulsation frequency and pulsating amplitude accordingly. In order to adjust the ring speed and pulsation frequency of the wet high intensity magnetic separator, the wet high intensity separator has set up the ring frequency converter and the pulsating frequency changer respectively in its front end and can realize the corresponding adjustment to the ring speed and pulsation frequency by adjusting the output frequency of the ring frequency converter and the pulsating frequency converter. In order to adjust the pulsating amplitude of the wet high intensity magnetic separator, the eccentric wheel in the pulsating box is modular designed, which can be adjusted by changing the eccentric wheel module to realize the pulsating amplitude.
In addition, the sorting area of the wet high intensity magnetic separator of the invention needs to be immersed under the sorting liquid level in the sorting work. This is because the material under the sorting liquid level is looser, it is easier to realize the separation of magnetic granular materials and non-magnetic granular materials. At the same time, only the sorting area immersed under the sorting liquid level, the pulse power of the pulse box will be extended with the pulp, so that the pulp in the region of the induction magnetizing field also produces pulsating vibration, the inclusion phenomenon resulting from the adsorption and capture of magnetic particle material under the action of magnetic force is reduced, and the purity of the selected magnetic particle material is improved.
In order to observe the height of the liquid surface in time and provide the basis for the regulation of the sorting liquid surface, the wet high intensity magnetic separator of the invention designed a liquid level observation hopper communicated with the non-magnetic material collecting hopper, and the liquid level in the hopper can be monitored by manual or liquid level meter. When the height of liquid level in the hopper is found to be changed, the opening of one or more non-magnetic material discharging valves can be manually or automatically adjusted at the bottom of the non-magnetic material collecting hopper to ensure that the liquid level is stable near the design height.
In order to obtain more pure magnetic materials, a rinsing process is set up before the magnetic material captured by the magnetic medium leaves the division selection. The source of the rinsing water is the same as the discharging water, and it is industrial circulating water. By adjusting the flushing water, it can selectively flush the trapped mineral and the impure mineral in the captured magnetic material from the matrix box module to allow it to enter the non-magnetic material collecting hopper, so as to obtain more pure magnetic materials.
In order to make the matrix box module clean without affecting the next period of the separation, it is very important to the ore-discharging of the discharging water tank.
Further, in order to discharge the mine better, the discharging spray water module is designed in the discharging water tank in the wet high intensity magnetic separator. By replacing this module, it is easy and quick to change the size of the blowhole (change the quantity of the water spray under the condition that the discharging pressure is not changed), the shape of the water spray, form and a certain range of water spray position and spray angle. Combined with the working condition field and the device parameters of the wet high intensity magnetic separator and the type of the matrix box module, then the better discharging effect can be achieved by changing the water spray module.
The invention is explained in detail by referring to the attached drawings of the invention below.
In the wet high intensity magnetic separator proposed by the invention, the magnetic yoke 1 comprises the left upper magnetic pole 110, the right upper magnetic pole 120, the left magnetic conductive plate 130, the right magnetic conductive plate 140 and the lower magnetic pole 150.
wherein the left upper magnetic pole 110 and the right upper magnetic pole 120 are connected with the upper magnetic pole yoke plate 111 and the upper magnetic pole iron core module 112 by welding or fastener fastening, the lower magnetic pole 150 is connected welded or fastener fastening by a two symmetrical lower magnetic pole yoke plate 151 and a lower magnetic pole core module 152 and a water retaining plate 153 located on its sides. The upper magnetic pole iron core module 112 and the lower magnetic pole iron core module 152 are corresponding to the up and down, a water retaining plate 153 is located on the sides of the upper magnetic pole iron core module 112 and the lower magnetic pole iron core module 152. A half-closed arc space which is opened at both ends of the arc direction is formed between the upper magnetic pole iron core module 112 and the lower magnetic pole core module 152 and the water retaining plate 153. When the wet high intensity magnetic separator works, this space can produce very strong background magnetic field, thus this space is the sorting space.
The upper magnetic pole iron core module 112 and the lower magnetic pole core module 152 are divided into three anti-corrosion grades, with different anti-corrosion treatment on the surface which contacting with the pulp. Wherein, the first grade is the metal surface without any special treatment, the second grade is the surface spraying antirust paint or other kinds of anti-corrosion coating; the third grade is increasing the replaceable sacrificial anode on the basis of the second grade. In addition, comparing with the lower magnetic pole core module 152, the upper magnetic pole iron core module is also added to do the acute angle roundness treatment and add nonmagnetic stainless steel magnetic separation processing around the flow clearance.
The coil 2 surrounds the lower magnetic pole core module 152 and is positioned over the lower magnetic pole yoke plate 151. The coil 2 comprises a coil shell 210 and a coil winding 220 and an insulating coolant 230 filled in the coil shell 210 which submerged the coil winding 220. Wherein, the coil shell 210 comprises the inner enclosing plate 211, the upper magnetic conductive plate 212, the lower magnetic conductive plate 213, and the outer enclosing plate 214. The outer side of the coil shell is also provided with an auxiliary structure such as oil pillow and junction box. The inner enclosing plate 211 of the coil shell 210 is made of non-magnetic steel plate, while the upper magnetic conductive plate 212, the lower magnetic conductive plate 213 and the outer enclosing plate 214 are made of high magnetic steel plate. The coil winding 220 is placed in the coil shell 210, coil winding 220 and coil shell 210 are separated by an insulating bar 240, not only to ensure that the coil winding 220 and the coil shell 210 are completely insulated, but also to provide a channel that the insulation coolant flow through. The coil winding 220 also sets up an insulating bar 240 in its internal when coils, also provides a channel that the insulation coolant flow through in the winding internal interval. A coolant inlet 215 is arranged on the lower end of the coil shell 210. A
coolant outlet 216 is provided on the upper end of the coil shell 210, which is away from the .. coolant inlet 215. The insulating coolant 230 is imported into the coil shell 210 by the coolant inlet 215, flows through the coil winding 220 and the pre-preseted insulating coolant channel between the coil winding 220 and the coil shell 210, fully heat exchanged with the coil winding 220, and then outflow from the coolant outlet 216. A distributary cavity 217 is provided between the coolant inlet 215 and the coil winding 220, a conflux cavity 218 is provided between the coolant outlet 216 and the coil winding 220.
The heat exchange device 3 is installed at any position outside the coil 2, and comprises pipeline 310, pump 320 and heat exchanger 330. Wherein, the inlet of the pump 320 is connected with the coolant outlet 216 of the coil 2 by the pipeline 310, and the outlet of the pump 320 is connected with the heat exchanger 330, while the other end of the heat exchanger 330 is connected with the coolant inlet 215 of the coil. According to different conditions of the field, the heat exchanger 330 can be any conventional closed-loop heat exchanger. A drain valve 340 is provided between the pump 320 and the coolant outlet 216 of the coil, and the outlet of the drain valve 340 is set at the lowest position of the insulating coolant 230. This valve can be used both in removing the insulation coolant 230 that in the coil 2 and the heat exchange device 3 and can cooperate with the pump 320 to inject the insulation coolant 230 to the coil 2 and the heat exchange device 3.
The ring 4 is located directly above the lower magnetic pole core module 152.
The ring 4 comprises a ring frame 410 and a matrix box module 420. The ring frame 410 comprises hub 411, web 412, support ring 413, skeleton 414. Due to the need of magnetic field design (for avoiding magnetic short-circuit phenomenon), the support ring 413 and skeleton 414 are made of non-magnetic stainless steel, skeleton 414 and support ring 413 isolates a number of small space on the ring frame 410 which can fix the matrix box module 420. The ring frame 410 is connected with the ring drive parts 5 through the web 412 and hub 411, and the small space used for fixing the matrix box module will enter and leave the sorting space in turn by the driving of the ring drive parts 5.
The matrix box module 420 is installed between two skeletons 414 which are circumferential adjacent, in addition to that small wet high intensity magnetic separator is arranged with a single row of matrix box module 420, the matrix box module 420 on the two sides of the web 412 is in the same staggered arrangement. That is, the number of matrix boxes on both sides of the web is the same, and every time a matrix box module 420 starts to enter the sorting space, there must be a corresponding matrix box module 420 which is in half of the separation space.
The matrix box module 420 comprises two or more pieces of non-magnetic frame plate 421 and a high magnetic medium 422 which is located between the non-magnetic frame plate 421. According to the difference of material granularity, the magnetic content of materials and the distribution of magnetic particle size in the separated slurry, the matrix box module 420 is divided into many forms. Selecting from the materials or forms, the high magnetic medium 422 includes both rod and mesh media, as well as steel wool or any other form of high magnetic soft magnetic material that can be filled between the non-magnetic frame plate 421 and will eventually be placed on the ring frame 410 for producing induction magnetic field when using in the wet high intensity magnetic separator; Selecting from the arrangement, the high magnetic medium 422 includes both tight arrangement and loose arrangement, both uniform arrangement of the media gap and medium gap gradient increasing or decreasing arrangement, both a single form of magnetic conduction media arrangement and a variety of forms of magnetic conduction media blending arrangement.
When the pulp is corrosive, the matrix box module 420 is divided into three anti-corrosion grades:
the first grade is high magnetic medium 422 using anti-corrosion material; the second grade provides overall coating treatment of the matrix box module 420 on the basis of first level; the third grade increases the sacrificial anode corrosion on the basis of the second grade, for the sacrificial anode can be replaced at any time, so this grade has a stronger anti-corrosion capacity. Finally, according to different working conditions, the wet high intensity magnetic separator is equipped with different matrix box module 420.
The middle shaft 510 of the ring drive parts 5 goes through the ring 4 from the hub 411, the middle shaft 510 and the hub 411 are connected by a magnetic flux-tight sleeve 520, and the torque from the middle shaft 510 can be transmitted to the ring 4 by the magnetic flux-tight sleeve 520. The middle shaft bearing housing 530 is positioned above the outer side of the left upper magnetic pole 110 and the right upper magnetic pole 120, supporting the middle shaft 510 and producing a distance within ten mm between the ring 4 and the upper magnetic pole iron core module 112 and the lower magnetic pole iron core module 152. It is necessary to ensure that no friction and scraping between the upper magnetic pole iron core module 112 and the lower magnetic pole iron core module 152 when the ring is operating, and also the separation space is fully utilized. The one end of the middle shaft 510 is connected with the gear drive 540, and the other end of the gear drive 540 is connected to the reducer 560, so that the torque is transferred to the ring 4 when the motor 550 drives the reducer 560.
The middle shaft 510 is connected with the hub 411 by a magnetic flux-tight sleeve 520 which can reduce the transmission of the magnetic field on the web 412 along the middle shaft bearing 531 and motor 550, reducer 560. The middle shaft bearing housing 530 and the left upper magnetic pole 110 and the right upper magnetic pole 120 is isolated through the non-magnetic stainless-steel plate, further reducing the magnetic flux of the middle shaft bearing 531 and the ring drive motor 550 and the reducer 560, and thus prolonging the service life of the middle shaft bearing 531 and the ring drive motor 550 and the reducer 560.
The feeding hopper 6 is arranged on the right side of middle shaft 510 that located on the upper of the left upper magnetic pole 110 and the right upper magnetic pole 120, and the left side of the middle shaft 510 is provided with a flushing hopper 7. The feeding hopper 6 and the flushing hopper 7 are symmetrical about the webs 412. And the upper magnetic pole iron core module 112, which is connected with the feeding hopper 6, is provided with a flow clearance 113 which leads the pulp into the sorting area. The material pulp flows from the feeding hopper 6 into the wet high intensity magnetic separator, and then through the flow clearance 113 flows into the division of the ring 4. The flushing hopper 7 is equipped with rinsing water, the upper magnetic pole iron core module 112 connected with the flushing hopper 7 is provided with water gap 114 that the rinsing water can flow into the separation area.The rinsing water can selectively flush the trapped mineral and the impure mineral in the captured magnetic material from the matrix box module 420 to allow it to enter the non-magnetic material collecting hopper11, to obtain more purer magnetic materials.
The discharging water tank 8 is located above the ring 4 slightly to the left position and crosses the ring 4 along the ring axis. The discharging water tank 8 is equipped with the discharging water spraying module 810, it can form different discharging water by replacing different discharging water spraying module 810, that is, changing the water spraying position/water spraying angle and the amount of spraying water when using the same discharging water pressure.
The two sides of the discharging water tank 8 are respectively provided with rinsing water outlet 820 and water flow exit 830, and all the water supply ports using industrial circulating water are unified to the water inlet of the discharing water tank 8. The discharging water tank 8 washes out all the materials adsorbed in the matrix box module 420 by spraying discharging water to the ring 4. The lower part of the rinsing water outlet 820 is connected with the water separator 840 in the flushing hopper 7 through the water pipe, after the distribution of the water separator 840, it can make the rinsing water flow evenly into the flushing hopper 7, and then through the mine clearance flow to the division within the district of the transfer ring. The smuggled minerals and the mineral impurities in the captured magnetic materials are selectively flushed away from the matrix box module to allow them to enter the non-magnetic material collecting hopper so as to obtain more purer magnetic materials. The pipeline is extended from the water flow exit 830 to the gentle slope position of the magnetic material collecting hopper 9, controlling the direction of the water flow exit is along the discharge direction. For fast-settling and easily stacked materials, a small amount of water can be added to prevent material build-up.
The magnetic material collecting hopper 9 comprises collection part 910, diversion part 920 and summary part 930. Among them, the collection part 910 and the diversion part 920 are symmetrical two parts about the web 412 and respectively locate on the two sides of the web 412, the summary part 930 is one part that symmetrical about the center of the web 412. The collection part 910 is above the upper magnetic pole iron core module 112, from the left of the flushing hopper 7 inside the ring 4 to the lower right of the discharging water tank 8 inside the ring 4. The summary part 930 is located at the lower part of the coil 2 which is in the left side of the magnetic yoke 1. The diversion part 920 is connected to the outlet of the collection part 910 and the two ends of the summary part 930. It can catch all the magnetic material which is taken to the top of the collection part 910 after leaving from the sorting area along the ring 4 to the summary part 930, and then discharge from the wet high intensity magnetic separator uniformly.
The middling hopper 10 is located on the left side of the lower magnetic pole core module 152 and clings to the lower magnetic pole core module 152. The feeding port is located in connecting portion of the lower left side of the ring 4 and the magnetic yoke 1 to the left outer part of the ring 4, and the width crosses the ring 4 axially along the ring 4. It can collect the material which leaves from the sorting area along the ring 4 but not to top portion of the magnetic material collecting hopper 9.
The non-magnetic material collecting hopper 11 is installed in the lower part of the magnetic yoke 1 and is connected with the magnetic yoke 1, and it can catch the pulp flowing out of the lower magnetic pole core module 152 completely. The non-magnetic material collecting hopper 11 is divided into two disconnected collection interval, the right collection interval 1110 is located below the feeding hopper 6 and the middle shaft 510, the left collection interval 1120 is located below the flushing hopper 7. Materials that are collected in both parts of the collection interval space are non-magnetic materials, most of the non-magnetic material flowing through the ring 4 is entered into the right collection interval 1110, while the small part is rotated with the ring to the left collection interval 1120, effected by the function of the rinsing water and the gravity flowing into the left collection interval 1120. The bottom of the two-collection interval space is provided with one or more non-magnetic material discharging valve 1130, which can control the height of the mineral slurry level of the sorting area by adjusting the valve opening. When the non-magnetic material collecting hopper 11 is removed from the lower magnetic pole core module 152, it can be stabilized on the device support to facilitate the separator dismantling of the split-body transport and reassembly of the wet high intensity magnetic separator.
The right collection interval of the non-magnetic material collecting hopper is connected with the pulsation mechanism 12. The pulsation mechanism 12 comprises pulsating box 1210, belt pulley group 1220, pulsating motor 1230, pulsating push plate 1240, rubber soft connection 1250. The pulsating box 1210 is equipped with an eccentric wheel module 1211. After the deceleration of the driving the belt pulley group 1220, the pulsating motor 1230 drives the eccentric wheel module 1211 in the pulsating box 1210, it can transfer the circular motion generated by the motor into the left-right reciprocating movement. The left end of the pulsating box 1210 is provided with a push rod 1212, the one end of the push rod 1212 is connected with the eccentric wheel module 1211 and the other end is connected with the pulsating push plate 1240, and the push rod 1212 transmits the reciprocating force of the eccentric wheel 1211 in the pulsating box to the pulsating push plate 1240. The outer side of the pulsating push plate 1240 and the right collection interval 1110 of the non-magnetic material collecting hopper are connected through the rubber soft connection 1250. When the pulsating box is running, the left-right reciprocating force can be passed to the pulp which is located on the right side of the collection interval 1110 through the pulsating push plate 1240, it can make the pulp pulsating vibrate, and then the pulsating vibration is extended to the sorting area along the pulp.
In order to ensure the stable operation and safe operation of the device, multiple security is set up inside the device.
The coarse particle separation sieve plate 14 is provided in the feeding hopper 6, or before feeding there sets the same function unit, preventing large particles from entering into the upper magnetic pole iron core module 112 and the matrix box module 420 which may cause clogging and affecting the material passing and sorting indicators.
Adding the discharging water slag box 15 before the discharging water tank 8, the discharging water slag box 15 is equipped with a slanting slag sieve plate 1510, which can prevent the large particulate impurities of discharging water from entering into the discharging water tank 8 jamming the discharging water spraying hole and affecting the discharging effect and sorting indicators. And in the bottom of the discharging water slag box 15 there sets manual or automatic slag drain valve 1520, which can manually or automatically clean the impurity particles isolated from the discharging the water slag box 15 regularly.
After flowing through the coil winding 220, the insulation coolant 230 in coil 2 can fully take the heat generated by the coil winding 220, when power on to the heat exchange device 3, and discharge through the heat exchanger 330. During the whole process the insulation coolant 230 is in closed circuit, no outside pollution, all the exchange of heat with the outside is completed in the heat exchanger 330.
The middle shaft 510 and the ring 4 adopt two narrow magnetic flux-tight sleeve 520 for connection, in the case of torque transmission, reducing the contact area between the middle shaft 510 and the ring 4, therefore reducing the transmission of magnetic field which through the web 412 and the middle shaft 510 to the middle shaft bearing 531, the ring drive motor 550 and the reducer 560;
Under the middle shaft bearing housing 530 and the ring drive motor 550 and the reducer 560 there sets non-magnetic stainless steel plate, further reducing the amount of the magnetic field passing through in the middle shaft bearing 531 and the ring drive motor 550 and the reducer 560, thereby extending the service life of the middle shaft bearing 531 and the ring drive motor 550 and the reducer 560.
The front-end of the ring drive motor 550 and the pulse motor 1230 both are equipped with motor protector 16, when the detection of hyper-flow or lack of phase it can timely protect and alarm.
Temperature probe 17 is provided on the coil coolant inlet pipeline 310 and near the coolant outlet 216 and at the top of the insulation coolant 230, real-time monitoring the temperature and temperature difference of the insulation coolant in coil inlet and outlet, when the temperature is too high or the temperature difference is too large, it will send out the fault alarm; The coil coolant inlet pipeline 310 is provided with flow switch 18, monitoring the flow state of the insulating coolant 230 and sending out the fault alarm when the flow is not up to the set requirement.
All operating parts of the device are covered with shield 19, and the observation window 1910 shall be set for the parts needed to observe the operation. The observation window 1910 is protected by a steel net to ensure that the personnel are not exposed to the running parts.
In order to realize the higher adaptability of the wet high intensity magnetic separator, many parameters can be adjusted accordingly.
The excitation current of the wet high intensity magnetic separator coil 2 is regulated through inputting preseted current in the current set unit 2011, and then through a constant current controller 2010, a controlling SCR (or a diode-coupled IGBT) rectifier module 20 converts industrial electricity into a preset dc input into coil 2, in the process of inputting the current into the coil 2 the hall element or other similar function element 21 is provided to monitor the current and feedback to constant current controller. Then the output voltage is adjusted by the constant current controller 2010 to match the detection value and the preset value, thus ensuring that the current of the wet high intensity magnetic separator input coil 2 is in accordance with the preset current of the current setting unit 2011.
The rotate speed of the ring 4 and the pulsation frequency of the pulsating box 1210 of the wet high intensity magnetic separator are realized by changing the output frequency of relay ring converter 22 and pulse frequency converter 23 in adjustment system respectively.
The pulsating amplitude of the wet high intensity magnetic separator is achieved by adjusting the eccentricity of the eccentric wheel module 1211 in the pulsating box.
The level of the liquid height in the liquid level observation bucket 13 is monitored by the manual or liquid level meter 24, and then achieved manually or automatically by adjusting the open degree of one or more non-magnetic material discharging valve 1130 at the bottom of the non-magnetic material collecting hopper 11.
The rinsing water quantity is realized by adjusting the opening of the valves of the rinsing water outlet 820 that on the two sides of the discharging water tank 8, and then provided to the flushing hopper 7 evenly through the water separator 840 in the flushing hopper 7.
The specific working process of the wet high intensity magnetic separator of the invention is as follows:
When the coil 2 is power excited, under the joint action of magnetic yoke 1, the two-arc surface of the upper magnetic pole iron core module 112 and the lower magnetic pole core module 152 and the two water retaining plate form a background magnetic field and sorting area which can magnetize the soft magnetic material.

The material flows in by the feeding hopper 6, first isolating the coarse particles of the feed material through the course granular separation sieve plate 14 to ensure that the material will not plug the iron core and matrix box module 420. The material passes through the coarse particle separating sieve plate 14 and then flows through the flow clearance 113 of the magnetic pole iron core module 112, then enters into the ring 4 in the separation area. The numerous high magnetic medium 422 in matrix box module 420 are magnetized under the background magnetic field of the separation region, and a small range of magnetized fields are formed on the near surface of each magnetic medium. When the material flows through the magnetized field, the magnetic particles in the material are adsorbed on the surface of the high magnetic medium 422, while the particles without magnetic and with insufficient magnetic purity are free to pass through the matrix box module 420 and then through the flow clearance of the lower magnetic pole core module 152, and then enter into the non-magnetic material collecting hopper 11, Finally discharged from the wet high intensity magnetic separator by the non-magnetic material discharging valve 1130. The magnetic particles adsorbed on the surface of the high magnetic medium 422 are rotated clockwise with the ring 4, when first rotated out of the separation of the liquid surface and the separation area, the partial particles of weak adsorption and the residual pulp in the matrix box module 420 flow outside of the ring, into the middling hopper 10, other magnetic particle material along the ring 4 continually transferred to the upper portion of the collection part 910 of the magnetic material collecting hopper 9, all rushed into the collection part 910 under the action of the gravity and discharging water tank 8 and eventually summarized in the summary part 930, and discharged from the wet high intensity magnetic separator by the summary part 930. The material in the separation area is affected by the pulsating vibration force produced by the pulsating box 1210, the whole separation process is in a loose state, which is advantageous to the separation of magnetic and non-magnetic granular materials.
On the basis of the above said wet high intensity magnetic separator, a vertical ring wet high intensity magnetic separator with forced oil cooling can be obtained by replacing part parts or removing part parts or improving the function of the parts, and the vertical ring wet high intensity magnetic separator with forced oil cooling can be more applicable or applied.
The vertical ring wet high intensity magnetic separator with forced oil cooling comprises seven parts: magnetic excitation system, sorting system, pulsation system, collection system, supporting system, driving system, protection system; The magnetic excitation system provides working magnetic field, sorting system provides continuously separating the fine tailings, and the pulsating system provides pulsating effect to the slurry of the vertical ring wet high intensity magnetic separator with forced oil cooling; The collection system is used for feeding, flushing, collecting the fine tailings, and adjusting the level of the liquid. The supporting system is fixedly connected with the field foundation and supports the main body of the device; the driving system provides power for the ring and pulsation of the vertical ring wet high intensity magnetic separator with forced oil cooling; The protection system is used to protect the safety of persons and device. The vertical ring wet high intensity magnetic separator with forced oil cooling is a kind of electromagnetic Date Recue/Date Received 2021-04-07 separation equipment that provides wet method for magnetic mineral enrichment and purifying the non-magnetic minerals except miscellaneous.
After dressing practice and continuous improvement for many years, the vertical ring wet high intensity magnetic separator with forced oil cooling has a higher separation background field strength, and also solves the problem of high temperature rising and cooling uneven in coil, easy stacker in the upper pole, easy worn of the concentrate tank, and the liquid level inconveniently be adjusted.
In the vertical ring wet high intensity magnetic separator with forced oil cooling provided by the invention, the material is supplied from the interior of the ring to pass down through the ring from the upper pole, and the magnetic material in the material is adsorbed to the ring and brought to leave the field above the ring with the ring rotation; the discharging water from outside the ring is used for lateral flushing the ring, and the magnetic material is collected into the magnetic material collecting hopper; the non-magnetic material is discharged from the non-magnetic material collecting hopper under the device; the reciprocating piston motion of pulsation mechanism makes the material into a loose state in the separation area. The center of magnetic yoke of the magnetic excitation system is provided with a flow clearance for material discharging along the direction of magnetic field, the flow clearance distributed along the magnetic field and there is no excess air gap in the magnetic circuit, improving the strength of the separation area;
the magnetic yoke is composed of a plurality of soft magnetic materials spliced, and each splicing part is connected without the traditional long bolt structure through the hole drilled in the soft magnetic materials, and the connection is provided with upper and lower pole ear and an positioning structure to reduce the difficulty for assembling the magnetic yoke; the lower magnetic pole of the yoke is assembled with the water retaining plate whose material in working air gap part is non-magnetic material, and the water retaining plate cooperating with the lower magnetic pole improves the surface height of the pulp to make the lower part of the ring immersed under the liquid level of the pulp.
The following is further explained by Figure 23 - Figure 32, and the vertical ring wet high intensity magnetic separator with forced oil cooling is assembled with the magnetic yoke and the coil assembly which is composed of a coil and a heat exchanger, and the upper part of the coil surrounding the lower magnetic pole 150 is arranged into the magnetic yoke.
The magnet yoke is buckling-closing formed with two mountain words shaped yoke of which both sides contact, and there is the air gap between the yoke, and the shape of the air gap is circular arc, and the magnetic yoke gather the magnetic field produced by the coil at the middle gap to form a background magnetic field. The magnetic yoke mainly comprises an upper magnetic pole (110, 120), a lower magnetic pole 150, a magnetic conductive plate (130, 140), a water retaining plate 153 and an up and down magnetic connector 160. As shown in Figure 25, the upper magnetic pole (110,120) and the lower magnetic pole 150 are fixed together by the magnetic conductive plate (130,140), and the water retaining plate 153 is fixed on the lower magnetic pole 150, and the magnetic circuit is shown by the arrow in the figure. The upper magnetic pole (110, Date Recue/Date Received 2021-04-07 120) and the lower magnetic pole 150 is provided with a feeding hole which is arranged along the magnetic line of force direction, there are no excess air gap on the magnetic circuit; the lower surface of the upper magnetic pole (110, 120) and the upper surface of the lower magnetic pole 150 are circular arc surface, and work air gaps are formed among them, and the upper magnetic pole (110, 120) is composed of two left-right symmetry parts, the middle gap is the active channel of a web 412, and the flow clearance of the upper magnetic pole (110, 120) near the web 412 is an open structure to effectively prevent material stacking along the web 412. The magnetic conductive plate (130, 140) is used for connecting the upper magnetic pole (110, 120) and the lower magnetic pole 150 and also magnetic conducting function, and is bolting connected by an up and down magnetic connector 160, and the up and down magnetic connector 160 is provided with a conical positioning column which is convenient for positioning and mounting. The water retaining plate 153 is fixed on the upper magnetic pole (110, 120), which can effectively improve the pulp liquid level when the device is working.
The coil is wound by an electromagnetic wire, and the magnetic field is generated by the power supply, and the magnetic field is finally gathered into the air gap of the magnetic yoke under the action of the magnetic yoke. The coil mainly comprises a coil winding 220, a coil shell 210, an insulating bar 240, an insulating bar bracket 241 and an expansion box 250.
The coil winding 220 is arranged in the coil shell 210, and the insulating bar bracket 241 is used for supporting the coil winding 220 and fixing the insulating bar 240, and the expansion box 250 is arranged above the coil shell 210.The coil winding 220 is a multilayer structure, each layer separated by an insulating bar 240; the insulating bar bracket 241 is strip shape, hollowed in the middle, surrounded by a mountain shape concave or convex structure, and evenly distributed around the coil winding 220,and the insulating bar 240 is jammed in the middle of the insulating bar bracket 241 and in a convex position of the mountain shaped structure; the coil shell 210 is a cavity structure which is filled with insulating coolant, and the insulating bar bracket 241 is fixed together with the upper and the lower surface of the inner side of the coil shell 210 to form a structure used for supporting the coil winding 220; and the expansion box 250 acts an integrated expansion buffer, coil outlet, dryer filter function.
The heat exchanger 330 is communicated with the coil through a pipeline; and the insulating coolant is circulated between the coil and the heat exchanger 330 to bring the heat generated by the coil to the outside, so that the coil works under a reasonable temperature. The cooling system is located under the side of the coil and mainly comprises an pump 320 and a heat exchanger 330.
The pump 320 and the heat exchanger 330 are connected through a pipeline and connected with the coil shell 210, and the pump 320 pumps out the hot insulating coolant above the coil, and after cooling through the heat exchanger 330, the insulating coolant after the cooling is sent back from the bottom to the coil to form a forced circulation cooling.
The sorting system comprises a ring and a discharging device. The main body of the ring is ring shape, and whose lower part pass through the middle air gap of the yoke and is rotated continuously around the main shaft under force to bring the magnetic minerals outside the magnetic field and make separation of magnetic minerals and non-magnetic minerals. The ring mainly comprises a ring frame 410, a middle shaft 510 and a matrix box module 420. The ring frame 410 is an upper hollow runner structure to form an installation space of the magnetic matrix box module 420; the web 412 is a metal plate whose center has a hole, and the web 412 is welded in the middle position of the ring frame 410; the middle shaft 510 is fixed by an expansion sleeve through the center hole of the web 412, a bearing housing is arranged on both sides of the middle shaft 510, and the bearing is located on the upper magnetic pole (110,120), and one end of the middle shaft 510 is provided with a transmission big gear. The matrix box module 420 is a box body structure made of high conductivity magnetic material, which is fixed on the ring frame 410, a unit material of the box body can be a rod, a thread rod, a polygon, a mesh, etc.
The discharging device is arranged above the outer side of the ring main body, and connected with an external water supply pipe, and spray water to the upper ring main body and collect the magnetic minerals absorbed on the ring main body into the magnetic material collecting hopper.
The discharging device mainly comprises a discharging water slag box 15 and a discharging water tank 8. The discharging water slag box 15 is a box body structure, and both ends of the box body are connected with flanges, which are respectively connected with the discharging water tank 8 and the external water supply pipe, and the inner part of the discharging water slag box 15 is provided with an inclined filtering net which is used for filtering the impurities in the water to discharge from the lower part of the box body. The pulsation system changes periodically the volume of the collection interval on the right side of the non-magnetic materials collecting hopper to make the pulp within the device into a reciprocating motion, and to disperse the minerals within the pulp. The pulsation system comprises a pulsating box 1210, a pulsating push plate 1240 and a rubber soft connection 1250. The pulsating box 1210 is a box body structure, and an output rod is arranged on the front end, and an eccentric wheel inside the pulsating box, the side of the box is with a driven belt wheel, the driven belt wheel can drive the eccentric wheel mechanism to rotate and output the reciprocating movement on the push rod. The pulsating push plate 1240 is a circular metal plate, the metal plate center is connected with the output rod of the pulsating box 1210. The rubber soft connection 1250 is rubber soft material and with a circular ring shape, and the ring body is U shaped, and both sides of U shaped ring is respectively the outer ring surface and inner ring surface of the ring, and the outer ring surface of the U shaped is fixed together with the right collection section of non-magnetic material collecting hopper, and the inner surface of the U shaped is fixed together with the pulsating push plate 1240.
The collection system is provided for the device to the mine, water supply, collection of magnetic and non-magnetic minerals, liquid level observation and other functions. The collection system comprises a feeding hopper 6, a flushing hopper 7, a collection part 910, a diversion part 920, a summary part 930, a non-magnetic material collecting hopper 11, a valve adjusting rod 1131 and a liquid level observation hopper 13. The feeding hopper 6 and the flushing hopper 7 are welded into a box body structure, which is arranged on the upper magnetic pole (110, 120) and is connected with the material passage of the upper magnetic pole (110, 120). The magnetic material collecting hopper is a tank structure and symmetrically arranged under the inner side of the ring, a certain angle is formed between the lower surface of the magnetic material collecting hopper and the horizontal plane, and a discharge port is provided on the lower position under the surface of the magnetic material collecting hopper. The diversion part 920 is a tank structure, which is installed under the discharge port of the magnetic material collecting hopper and the concentrate is transported into the summary part 930 through the pipeline near the tail of the diversion part 920.
As shown in Figure 31, the summary part 930 is a tank structure, whose bottom surface is formed with both sides inclined plane and the intermediate discharge port. A
plurality of vertical plate is fixed along the inclined plane from top to bottom, and the first vertical plate is higher than the other vertical plate, the structure can make the pulp precipitate formed when flowing in a bottom surface to form the natural wear layer and increase the service life of the concentrate tank. The non-magnetic material collecting hopper 11 is arranged under the feeding holes of the lower magnetic pole 150, and a closing structure is formed from top to bottom in the hopper body, under the non-magnetic material collecting hopper 11 is equipped with adjustable valve. The valve adjusting rod 1131 is an adjusting mechanism which is composed of a hand wheel, an extension rod and a flexible shaft, and is arranged on the side of the device, and the valve regulating point of the non-magnetic material collecting hopper 11 is extended to the upper part of the device. The liquid level observation hopper 13 is a box structure and with opening above the box body, and the middle of the bottom surface of the box body is provided with a vertical plate, in bottom surface of both sides of which there are each outlet, one outlet is connected with the right collection interval of the non-magnetic material collecting hopper, and the whole box body is located on the side of the device, and adjacent the adjusting hand wheel of the valve adjusting rod 1131.
The supporting system is used for supporting the device and fixing the device on the ground. The supporting system mainly includes the bracket 25, and the bracket 25 is welded by a section steel after the optimization design. The bottom of the bracket 25 is square frame shape and one side of the square frame projecting a trapezoidal support for the installation of the pulsating box 1210. On the bottom square frame of the bracket 25, four upright columns are set and both sides of each upright column are configured with a reinforced section steel to increase the intensity of support, the upper faces of four upright columns are in the same level, the lower magnetic pole 150 setting on the four upright columns.
The driving system makes an outer electric energy into the kinetic energy of motion and provides a power source for rotating parts of the invention, and the driving system comprises a ring drive part 5, a pulsating motor 1230, a driving belt wheel group and an electronic component. The ring drive parts 5 comprises a reducer, a ring drive motor and a drive gear, and a small gear of the drive gear is sheathed around the output shaft of the reducer, and the small gear of the drive gear is engaged with a big gear at the end of the middle shaft 510 and able to drive the big gear rotation by reducer to drive the ring rotation when the ring drive motor rotation. The center of belt wheel end of the driving belt wheel group is sheathed around the output shaft of the pulsating motor 1230, and through the built-in belt the driving belt wheel group makes the output power of the pulsating motor 1230 output to the pulsating box 1210 to drive the eccentric wheel to rotate.
In electronic control part of the invention, the main circuit power and the current regulator PCB
power when the breaker QF1 is closed, the frequency converter BP1 power when the breaker QF2 is closed, and the ring motor M1 is energized operation when the intermediate relay KA1 is closed, and the output speed of the ring motor M1 is adjusted by adjusting the frequency converter BPI.
The frequency converter BP2 power when the breaker QF3 is closed, and the pulsating motor M2 is energized operation when the intermediate relay KA2 is closed, and the output speed of the ring motor M2 is adjusted by adjusting the frequency converter BP2. The oil pump motor M3 is energized operation when the breaker OF4 is closed and AC contactor KM2 is closed, a thermal overload relay FR1 is cut off when the oil pump motor M3 overload overcurrent, and the power supply of the oil pump motor M3 is cut off to play a protective role. A
silicon-controlled rectifier .. module VC1 converts three-phase AC into DC current to flow through an excitation coil YA when the breaker OF5 is closed and AC contactor KM1 is closed, and the conduction state of the silicon-controlled rectifier module VC1 can be adjusted by a current regulator PCB so as to adjust the size of current flow through the excitation coil YA.
The protection system is made of thin steel plate through welding and bending, which can separate the device from the outside to protect the device and the safety of personnel.
The shield 19 of the protection system comprises a ring cover, a gear cover and a belt wheel cover.
The ring cover is divided into about two parts, each part is composed of one cambered plate and two fan-shaped plate welded to form a structure of arc groove, and the about two parts locate on both sides of the flushing hopper 7 and upside down on the ring body; the gear cover and the belt wheel cover both .. are unequal notch structure, and a hole is arranged at two centers of the notch and the two holes are not in the same plane used for the motor shaft and gear shaft passing through, and the gear cover is covered completely the gear inside,and the belt wheel cover is covered completely the belt wheel inside.
The traditional strong magnetic separator has the following problems: when the device works, a closed structure on the side of the upper pole near the ring causes a leakage material accumulated above the upper pole from the top; when a yoke is installed with the long bolt through the yoke, positioning and installation is inconvenient; the magnetic material is adopted in a water retaining plate, which causes the partial magnetic flux shielding; the coil is cooled by a coolant liquid horizontal flow, which causes uneven heat dissipation and a short service life of the cooling .. coil; the bottom of the concentrate tank is a plane, which causes the bottom of the concentrate tank easy wear and leakage when a pulp rapid impacting and flowing; the valve regulation point of the tailings hopper is below the device, which causes that the valve of the tailings hopper can't adjusted while observing the liquid level of the overflow hopper and extremely inconvenient adjustment. In view of the above problems, the vertical ring wet high intensity magnetic separator with forced oil cooling made the following improvements: the side of the upper magnetic pole (110, 120) near the ring is opened, and the leakage material above flows directly from the open position to the device to effectively prevent the material accumulated above the upper pole (110, 120); the upper magnetic pole (110, 120), the lower magnetic pole 150 is connected with the magnetic conductive plate (130, 140) through an up and down magnetic connector 160 which is connected by a bolt and using the tapered positioning structure which greatly facilitate the yoke mounting. The water retaining plate 153 is made of stainless steel, making effective use of maximum flux. Using the method of coil forced heat exchange and cooling, the coil winding 220 is a multilayer structure, which is immersed in the insulating coolant and placed in the insulating bar bracket 241, the insulating coolant in the winding flows from bottom to top and the hot oil is outflowed from the top of coil and flows into the heat exchanger cooling, and cooled cold oil flows then into the coil from below. The flow pattern is consistent with the physical characteristics of the self-convection of hot liquid upward cooling down within liquid and greatly improves the uniformity of heat dissipation, and improve the service life of the coil; the summary part 930 increases the small vertical plate structure at the bottom of the tank, so that the pulp can form a deposit when the pulp flows in the bottom surface, and to form the natural wear resistant layer, and the service life of the concentrate collecting groove is increased; the regulating handwheel of the valve adjusting rod 1131 located near the liquid level observation hopper 13, which can observe the pulp level in the liquid level observation hopper 13 to regulate valve opening of the non-magnetic material collecting hopper 11 and cause convenient adjustment of a device.
Further, a skeleton structure is preferably used in the ring of the vertical ring wet high intensity magnetic separator with forced oil cooling of the invention, a matrix box module 420 is fixed on the ring frame through bolts, the ring frames are made of stainless steel material; and the shape of the magnetic medium can be rods, polygon, mesh, dentate, thread, steel wool and other structures;
and an expansion sleeve connection structure is used to connect the middle shaft of the ring with the ring; the feeding hopper is symmetrically arranged on both sides of the ring, and the feeding hopper is installed on the feeding channel in the yoke. The magnetic hoppers are symmetrically arranged at inner both sides of the rings, the magnetic hopper on one side of the ring can be one hopper body or also be multiple hopper bodies; the bottom surface of the magnetic hopper has a certain angle with the horizontal surface , so as to realize the pulp self-flowing in the magnetic hopper; the traditional way of pipeline was abandoned in the magnetic hopper and going mine in tank is adopted to reduce the blockage of magnetic hoppers and easy to clean.
A discharging point is located above the magnetic hopper, and the means of fluid washing a magnetic medium on the ring is used to unload ore, in which fluid can be air, water or a mixture of water and air.
Further, the front end of the discharging device in the vertical ring wet high intensity magnetic separator with forced oil cooling is provided preferably with a slag filtering device to filter large particle impurities in a discharging water, and the forced heat exchange is used to cool the coil Date Recue/Date Received 2021-04-07 whose winding is multilayer structure to increase the contact area between the winding and the heat exchange medium and improve the efficiency of heat transfer. The heat exchange medium flows from one side of the coil to the other symmetrical side of the coil, and the heat exchange medium can be insulated coolant, air or water. As using an insulating coolant cooling the coil, the .. winding of the coil is directly immersed in an insulating coolant, the coil is provided with an insulating coolant expansion box, and the number of the expansion box can be one or more, the expansion box is provided with a structure of a respirator, a junction hopper, a liquid level observation etc. A pulsation box pushes the pulsating push plate to do reciprocating motion, and the pulsating push plate is connected with the right collection interval of the non-magnetic hopper through rubber or other soft waterproof material to seal pulp in the non-magnetic hopper.
Further, in the vertical ring wet high intensity magnetic separator with forced oil cooling of the invention, a pulsation stroke and pulsation frequency of the pulsation box is preferably adjustable to adapt to different ore properties, and the pulsation stroke refers to the amplitude of reciprocating motion, the pulsation frequency refers to the speed of reciprocating motion.
The non-magnetic hopper is positioned below the magnetic yoke, the valve is provided under the hopper body to adjust the height of liquid level by adjusting the valve opening and feeding quantity. A liquid level observation hopper is provided on the side of the device, and the liquid level observation hopper is connected with the non-magnetic hopper to control the pulp surface height in the liquid level observation hopper by manual or automatic adjustment of the valve opening of the valve below the .. nonmagnetic material hopper. The valve of the nonmagnetic material hopper is provided with an extension rod, and the valve opening can be adjusted outside device; the regulating point can also be transferred to the top of the device through the flexible shaft or other steering device to observe the height of the liquid level while adjusting the valve. The ring cover can cover the whole ring to protect the personal safety, and each part of the cover body is connected with an inserting type to prevent slurry spill. The cover body is provided with an observation window.
The bracket is made of section steel welded together, and the bracket is composed of two parts of a magnetic yoke bracket and a pulsation hopper bracket, wherein the magnetic yoke bracket and the pulsation hopper bracket are connected by welding or bolt fastening mode, there is a positioning structure on the bracket.
Adjusting different parameter and replacing different component module, based on the difference of the selected material and working environment of the wet high intensity magnetic separator or the vertical ring wet high intensity magnetic separator with forced oil cooling, it will realize the biggest degree of adaptation with the using site and therefore gain a better, more stable separation index.
The invention has the advantages of reasonable and novel structure, high safety, energy saving and beautiful appearance, while ensuring the good separation index.

Date Recue/Date Received 2021-04-07 The above is only preferred specific embodiments of the invention; however, the scope of protection of the invention is not limited to this. Any modification or substitution that is easy to conceive by a person skilled in the art within the technical scope disclosed in the invention should be included in the scope of protection of the invention. It should be understood by an ordinary person in the art that any variety of modification could be made in format and detail without departing from the spirit and scope of the invention defined by the appended claims.

Claims

1. A vertical ring wet high intensity magnetic separator (WHIMS) with forced oil cooling comprises a magnetic excitation system, a sorting system, a pulsation system, a collection system, a support system, a driving system and a protection system;
wherein the magnetic excitation system comprises a magnetic yoke (1), a coil (2) and a heat exchange device (3), and provides a working magnetic field;
wherein the sorting system realizes continuous separation of fine tailings;
wherein the pulsation system comprises a reciprocally moving pulsating push plate (1240) that provides a pulsation effect to realize the dispersion of minerals in pulp in the vertical ring WHIMS with forced oil cooling;
wherein the collection system is used for feeding, flushing, collecting fine tailings and observing and adjusting liquid level;
wherein the support system is used for supporting the vertical ring WHIMS with forced oil cooling, and the support system is fixedly connected with a ground surface;
wherein the driving system is used to provide power for the vertical ring WHIMS with forced oil cooling;
wherein the protection system comprises a shield covering operating parts for personal safety and protection of equipment; and wherein a lower magnetic pole (150) of the magnetic yoke (1) is assembled with a water retaining plate (153) whose part in working air gap is made of non-magnetic material, and the water retaining plate (153) cooperates with the lower magnetic pole (150) to make a lower part of the ring immersed under the liquid level of the pulp.

2. The vertical ring WHIMS with forced oil cooling of claim 1, wherein a center of the magnetic yoke (1) of the magnetic excitation system is provided with a passage for feeding and discharging along the direction of the magnetic field, the passage distributed being along the magnetic field, and a magnetic circuit without excess air gap, the magnetic yoke (1) is fonned by splicing a plurality of soft magnetic materials, and the connection between each spliced part is achieved by up and down magnetic connectors (160), and the connection between each spliced part is provided with a positioning structure.

3. The vertical ring WHIMS with forced oil cooling of claim 1 or 2, wherein an upper part of the coil (2) surrounding the lower magnetic pole (150) is arranged in the magnetic yoke (1).

4. The vertical ring WHIMS with forced oil cooling of any one of claims 1 to 3, wherein the heat exchange device (3) comprises a pipeline (310), a pump (320) and a heat exchanger (330), the heat exchanger (330) is connected with the coil (2) through the pipeline (310), the heat exchanger (330) is positioned under the side of the coil (2), and the transformer oil /
insulating coolant is circulated between the coil (2) and the heat exchanger (330) by the pump (320).

5. The vertical ring WHIMS with forced oil cooling of any one of claims 1 to 4, wherein the sorting system comprises a ring and an ore discharging device, a main body of the ring is ring shaped, and a lower part of the main body of the ring passes through a middle air gap of the magnetic yoke (1).

6. The vertical ring WHIMS with forced oil cooling of any one of claims 1 to 5, wherein the pulsation system comprises a pulsating box (1210) and a rubber soft connection (1250), the pulsating box (1210) is a box body structure, and an output rod is arranged in a front end of the pulsating box (1210), and an eccentric wheel inside the pulsating box (1210), a side of the pulsating box (1210) with a driving pulley group which can drive the eccentric wheel to rotate.

7. The vertical ring WHIMS with forced oil cooling of claim 6, wherein the pulsating push plate (1240) is a piece of circular metal plate, a center of the metal plate is connected with a push rod of the pulsating box (1210), the rubber soft connection (1250) is made of soft rubber, the rubber soft connection (1250) is a circular ring, the circular ring is U shaped, both sides of the U shaped ring are outer torus and inner torus of the circular ring respectively, and the U
shaped outer torus is fixed together with a right collection section of non-magnetic material collecting hopper (11) and the U
shape inner torus is fixed together with the pulsating push plate (1240).

8. The vertical ring WHIMS with forced oil cooling of any one of claims 1 to 7, wherein the collection system comprises a feeding hopper (6), a flushing hopper (7), a collection part (910), a diversion part (920), a summary part (930), non-magnetic material collecting hopper (11), a valve adjusting rod (1131) and a liquid level observation hopper (13).

9. The vertical ring WHIMS with forced oil cooling of claim 8, wherein there are multiple small vertical plates on both sides of inclined portions in a bottom surface of the summary part (930) of a magnetic material collecting hopper (9).

10. The vertical ring WHIMS with forced oil cooling of any one of claims 1 to 9, wherein the driving system makes outer electric energy into kinetic energy of motion, and the driving system comprises ring drive parts (5), a pulsation driver and an electronic control part, and the ring drive parts (5) comprises a reducer, a ring drive motor and a drive gear, a pinion of the drive gear is sheathed around an output shaft of the reducer, and the pulsation driver comprises a pulsating motor (1230) and a driving belt wheel group, a center of a driving wheel of the driving belt wheel group is sleeved on an output motor of the pulsating motor (1230).

11. A wet high intensity magnetic separator, comprising a magnetic excitation system, sorting collection system, a safety and isolation system and an adjustment system, wherein:
the magnetic excitation system is used to provide a background magnetic field for sorting in the wet high intensity magnetic separator;
the sorting collection system cooperates with the background magnetic field provided by the magnetic excitation system to separate a magnetic material in a pulp containing magnetic minerals from a non-magnetic material through magnetic separation, and collects to the different collecting regions respectively;
the safety and isolation system is used to isolate the granularity of a feeding material, segregate impurities in water, isolate pollution from an insulating coolant, separate the magnetic field from magnetically sensitive components, provide safety protection for a motor, a coil and a matrix box module, and provide personal safety protection for operators; and the adjustment system is used for adjusting the background magnetic field intensity of the magnetic excitation system, adjusting a ring speed of the sorting collection system, regulating a pulsation amplitude and frequency, adjusting a height of a liquid level and adjusting a quantity/angle of rinsing water and discharging water;
wherein the magnetic excitation system comprises a magnetic yoke, a coil and a heat exchange device; the magnetic yoke comprises a left upper magnetic pole, a right upper magnetic pole, a left magnetic conductive plate, a right magnetic conductive plate and a lower magnetic pole, wherein the left upper magnetic pole and the right upper magnetic pole are connected with an upper magnetic pole yoke plate and an upper magnetic pole iron core module by welding or fastener fastening, the lower magnetic pole is connected with two symmetrical lower magnetic pole yoke plates and a lower magnetic pole core module and water retaining plates located on either side of the lower magnetic pole core module by welding or fastener fastening;
wherein the sorting collection system comprises a ring, a ring drive part, a feeding hopper, a flushing hopper, a discharging water tank, a magnetic material collecting hopper, a middling hopper, a non-magnetic material collecting hopper, a pulsation mechanism, a liquid level observation hopper;
wherein a sorting region is produced within the magnetic yoke of the coil excitation; and at this point, the ring can take the matrix box module into/out of a separation zone, the ring drive part provides rotational power for the rotation of the ring, a feeding pulp flows from the feeding hopper to enter in the sorting region, the flushing hopper responsible for rinsing the material in the process of sorting, the discharging water tank is responsible for flushing the magnetic material taken from the ring out of the matrix box module, the magnetic material collecting hopper is responsible for collecting the magnetic material together to discharge out of the wet high intensity magnetic separator, and the non-magnetic material not selected out is collected by the non-magnetic material collecting hopper and thereafter discharged out of the wet high intensity magnetic separator, the material and pulp water coming out of the sorting region but not an upper part of the magnetic material collecting hopper flows into the middling hopper, the pulsation mechanism can make the pulp in the sorting region vibrate during the sorting process for the separation of minerals and impurities, and the liquid level observation hopper can observe the height of a separation liquid level out of the magnetic yoke and the separation area, and provide the basis for the adjustment of the height of the separation level;
wherein the safety and isolation system comprises setting a coarse particle separation sieve plate in a feeding hopper or setting the same functional unit before feeding, preventing large particles from entering into an upper magnetic pole iron core module and the matrix box module which may cause clogging and affecting the material passing and the sorting index;
adding a discharging water slag box before a discharging water tank for preventing pollution, isolating an insulation coolant inside the coil, magnetic isolating of the magnetically sensitive components, monitoring and protecting of all motor and the heat exchange situation of the coil, and protecting the operation of the components; and wherein the adjustment system is used to adjust the excitation current of the coil, the speed of the ring and the pulsation frequency and the pulsating amplitude of a pulsating box, the height of the liquid level and the rinsing water quantity of the wet high intensity magnetic separator.

12. The wet high intensity magnetic separator of claim 11, wherein the magnetic excitation system, sorting collection system, safety and isolation system and adjustment system are designed in a modular way, or parts of the magnetic excitation system, sorting collection system, safety and isolation system and adjustment system which have influence on a sorting index are designed in a modular way, and replacing a corresponding module according to different sorting material and working conditions, so as to achieve an ideal mineral processing index.

13. The wet high intensity magnetic separator of claim 11 or 12, wherein according to different working conditions, the wet high intensity magnetic separator is matched with a different upper magnetic pole iron core module and a lower magnetic pole core module.

14. The wet high intensity magnetic separator of any one of claims 11 to 13, wherein according to different anti-corrosion requirements, the upper magnetic pole iron core module and the lower magnetic pole core module of the wet high intensity magnetic separator are divided into three grades: the first grade having no special treatment, the second grade having a water resistant and abrasion resistant coating sprayed on a contact surface of the magnetic pole iron core and the pulp, and the third grade having a replaceable sacrificial anode increased on the basis of the second grade.

15. The wet high intensity magnetic separator of any one of claims 11 to 14, wherein for the use place of high strong magnetic mineral content in the separation pulp, the upper magnetic pole iron core module is used to do an acute angle roundness treatment and / or add a configuration of magnetic separation which is non-magnetic or stainless steel around a flow clearance, and the lower magnetic pole iron core module is not used to do the acute angle roundness treatment and / or add the configuration of magnetic separation which is non-magnetic or stainless steel around the flow mine water clearance.

16. The wet high intensity magnetic separator of any one of claims 11 to 15, wherein the coil comprises a coil shell and a coil winding and an insulating coolant immersing the coil winding in the coil shell, wherein the coil shell comprises an inner enclosing plate, an upper magnetic conductive plate, a lower magnetic conductive plate, and an outer enclosing plate; the inner enclosing plate of the coil shell is made of non-magnetic steel plate, while the upper magnetic conductive plate, the lower magnetic conductive plate and the outer enclosing plate are made of high conductive magnetic steel plate; the coil winding is placed in the coil shell and an insulating bar is used to pad the coil winding and isolate the coil winding from the coil shell to ensure complete insulation from the coil shell and preset a flow passage of the insulating coolant; when winding the coil winding, an insulating bar is also used to pad the insulation coolant flow passage in an inner coil winding, and a lower part of the coil shell is provided with a coolant inlet, and an upper part of the coil shell is provided with a coolant outlet away from the coolant inlet, and the insulating coolant flows through the coolant inlet into the coil shell and flows through the coil winding and the insulated coolant passages between the coil winding and the coil shell, and then outflow from the coolant outlet, and said flow in the coolant channel is unifonn, and there is no flow dead angle, so it can take away the heat generated when the coil winding is in excitation.

17. The wet high intensity magnetic separator of claim 16, wherein a distributary cavity is arranged between the coolant inlet and the coil winding, and a conflux cavity is arranged between the coolant outlet and the coil winding.

18. The wet high intensity magnetic separator of any one of claims 11 to 17, wherein the heat exchange device comprises a pipeline, a pump and a heat exchanger; an inlet of the pump is connected with a coolant outlet of the coil through the pipeline, and an outlet of the pump is connected with the heat exchanger, while an other end of the heat exchanger is connected with a coolant inlet of the coil; and wherein, according to the conditions of a field, the heat exchanger can be any conventional closed-loop heat exchanger.

19. The wet high intensity magnetic separator of claim 18, wherein there is a drain valve at the lowest part of the insulating coolant between the pump and the coolant outlet of the coil, and the drain valve can be used to empty the insulating coolant of the coil and the heat exchange device, and it can also cooperate with the pump to the coil and the heat exchange device to inject an insulating coolant.

20. The wet high intensity magnetic separator of any one of claims 11 to 19, wherein the ring comprises a ring frame and a matrix box module; the ring frame comprises a hub, a web, a support ring and a skeleton, wherein the support ring and skeleton are made of non-magnetic stainless steel; the matrix box module is installed between two skeletons which are circumferentially adjacent;
and the wet high intensity magnetic separator is arranged with a single row of matrix box modules, the matrix box modules on the two sides of the web are in the same staggered arrangement.

21. The wet high intensity magnetic separator of claim 20, wherein the matrix box module comprises two or more pieces of non-magnetic frame plate and a high magnetic medium which is located between the non-magnetic frame plate and an ear plate; and the matrix box module can be fixed to the adjacent two skeletons through the ear plate.

22. The wet high intensity magnetic separator of claim 21, wherein in the matrix box module, the high magnetic medium includes both rod and mesh media, as well as steel wool or any other form of magnetic material which can be filled between the non-magnetic frame plates and will eventually be placed on the ring frame for producing an induction magnetic field when used in the wet high intensity magnetic separator.

23. The wet high intensity magnetic separator of claim 21, wherein in the matrix box module, the high magnetic medium includes both a tight arrangement and a loose arrangement, both a uniform arrangement of the media gap and a gradient arrangement of the media gap, both a single form of magnetic conduction matrix arrangement and a variety of forms of magnetic conduction media blending arrangement.

24. The wet high intensity magnetic separator of any one of claims 20 to 23, wherein when the pulp is corrosive, and the matrix box module is divided into three anti-corrosion grades: the first grade is a high magnetic medium using anti-corrosion material; the second grade provides overall coating treatment of the matrix box module on the basis of the first grade;
and the third grade increases the sacrificial anode corrosion on the basis of the second grade.

25. The wet high intensity magnetic separator of any one of claims 20 to 24, wherein according to the actual operating conditions in the field the wet high intensity magnetic separator is equipped with a different matrix box module.

26. The wet high intensity magnetic separator of any one of claims 11 to 25, wherein the ring drive parts comprises a middle shaft, a magnetic flux-tight sleeve, a middle shaft bearing housing, a gear drive, a ring drive motor and a reducer.

27. The wet high intensity magnetic separator of claim 12, wherein the wet high intensity magnetic separator further comprises the feeding hopper and the flushing hopper, and the upper magnetic pole iron core module, which is connected with the feeding hopper, is provided with a flow clearance which leads the pulp into the sorting region; wherein the pulp flows from the feeding hopper into the wet high intensity magnetic separator, and then flows through the flow clearance into the ring in the separation area; the flushing hopper is equipped with rinsing water, an upper magnetic pole iron core module connected with the flushing hopper is provided with a water gap that the rinsing water can flow into the separation area; and the rinsing water can selectively flush a trapped mineral and an impure mineral in a captured magnetic material from the matrix box module to allow it to enter the non-magnetic material collecting hopper.

28. The wet high intensity magnetic separator of any one of claims 11 to 27, wherein the discharging water tank is equipped with a mine water spraying module, and can form different discharging water by replacing the mine water spraying module with a different mine water spraying module; that is, changing the water spraying position/water spraying angle and the amount of spraying water when using the same discharging water pressure.

29. The wet high intensity magnetic separator of claim 28, wherein the two sides of the discharging water tank are respectively provided with a rinsing water outlet and a water flow exit, and all the water supply ports using industrial circulating water are unified to the water inlet of the discharging water tank; and the discharging water tank washes out all the materials adsorbed in the matrix box module by spraying the discharging water into the ring.

30. The wet high intensity magnetic separator of any one of claims 11 to 29, wherein a magnetic material collecting hopper comprises a collection part, a diversion part and a summary part;
wherein the collection part and the diversion part are symmetrical parts about a web and respectively locate on the two sides of the web, the summary part is symmetrical about a center of the web; the collection part is above an upper magnetic pole iron core module, from the left of a flushing hopper inside the ring to the lower right of a discharging water tank inside a ring;
the summary part is located at a lower part of the coil which is in the left side of a magnetic yoke; the diversion part is connected to an outlet of the collection part and two ends of the summary part; such that it can catch all the magnetic material which is taken to a top of the collection part after leaving from the sorting region along the ring to the summary part, and then discharge from the wet high intensity magnetic separator uniformly.

31. The wet high intensity magnetic separator of any one of claims 11 to 30, wherein the middling hopper is located on the left side of the lower magnetic pole core module and clings to the lower magnetic pole core module; a feeding port is located in a connecting portion of the lower left side of the ring and a magnetic yoke to the left outer part of the ring, and the width across the ring axially along the ring such that it can collect the material which leaves from the sorting region along the ring but not to a top portion of the magnetic material collecting hopper.

32. The wet high intensity magnetic separator of one of claims 11 to 31, wherein a non-magnetic material collecting hopper is installed in a lower part of a magnetic yoke and is connected with the lower part of the magnetic yoke, and it can catch the pulp flowing out of a lower magnetic pole core module completely; the non-magnetic material collecting hopper is divided into two disconnected collection intervals, a right collection interval being located below a feeding hopper and a middle shaft, and a left collection interval being located below a flushing hopper; and a bottom of two collecting spaces is provided with one or more non-magnetic material discharging valves, respectively.

33. The wet high intensity magnetic separator of one of claims 11 to 32, wherein when a non-magnetic material collecting hopper is removed from a lower magnetic pole core module, it can be stabilized on a device support to facilitate dismantling of the wet high intensity magnetic separator for split-body transport and reassembly of the wet high intensity magnetic separator.

34. The wet high intensity magnetic separator of any one of claims 11 to 33, wherein the pulsation mechanism comprises a pulsating box, a belt pulley group, a pulsating motor, a pulsating push plate, and a rubber soft connection; the pulsating box is equipped with an eccentric wheel module; after deceleration of the belt pulley group, the pulsating motor drives an eccentric wheel module in the pulsating box, such that it can transfer the circular motion generated by the motor into a left-right reciprocating movement; a left end of the pulsating box is provided with a push rod, one end of the push rod is connected with the eccentric wheel module and an other end is connected with the pulsating push plate, and the push rod transmits the reciprocating force of the eccentric wheel module in the pulsating box to the pulsating push plate; an outer side of the pulsating push plate and a right collection interval of the non-magnetic material collecting hopper are connected through the rubber soft connection; when the pulsating box is running, a force from the left-right reciprocating movement can be passed to the pulp which is located on the right side of the collection interval through the pulsating push plate, such that it can make the pulp pulsating vibrate, and then the pulsating vibration is extended to the sorting region along the pulp.

35. The wet high intensity magnetic separator of any one of claims 11 to 34, wherein adding the discharging water slag box before the discharging water tank, the discharging water slag box is equipped with a slanting slag sieve plate, after industrial circulating water flows into the discharging water slag box, it is isolated by the slanting slag sieve plate, by which large particles of impurities and light impurities are isolated, as the slanting slag sieve plate is inclined downward along the flow direction, so that impurity separation is effected by the force of the flow downward momentum and it will flow to a lower part of the discharging water slag box and converge under a bottom of the discharging water slag box, thus, preventing the large particulate impurities of discharging water from entering into the discharging water tank, jamming the discharging water spraying hole and affecting the discharging effect and sorting index.

36. The wet high intensity magnetic separator of any one of claims 11 to 35, wherein in the bottom of the discharging water slag box there sits a manual or automatic slag drain valve, which can manually or automatically clean the impurity particles isolated from the discharging water slag box regularly.

37. The wet high intensity magnetic separator of any one of claims 11 to 36, wherein after flowing through a coil winding, an insulation coolant in the coil can fully take the heat generated by the coil winding when powered on to the heat exchange device, and discharge through the heat exchanger; and wherein during the whole process the insulating coolant is in a closed circuit with no outside pollution, and all the exchange of heat with the outside is completed in the heat exchanger.

38. The wet high intensity magnetic separator of any one of claims 11 to 37, wherein a middle shaft is connected with a ring by two narrow magnetic flux-tight sleeves, reducing the contact area between the middle shaft and the ring with the guarantee of torque transmission, and at the same time, the material of the magnetic flux-tight sleeve is an alloy steel or non-magnetic steel with lower permeability than a magnetic yoke, thereby reducing the magnetic field transmitted through ring webs and the middle shaft to a middle shaft bearing, a ring drive motor and a reducer; a non-magnetic stainless steel plate is arranged below a middle shaft bearing housing, the ring drive motor, and the reducer, further reducing the magnetic flux in the middle shaft bearing, the ring drive motor and the reducer, thus extending the service life of the middle shaft bearing, the ring drive motor and the reducer.

39. The wet high intensity magnetic separator of any one of claims 11 to 38, wherein a front end of the ring drive motor, a pulsating motor, and a pump are equipped with a motor protector, and, when superfluid or a lack of phase is detected, the motor protector can be timely protect the ring drive motor, the pulsating motor and the pump and send an alert to a user.

40. The wet high intensity magnetic separator of any one of claims 11 to 39, wherein near a pipeline of a coil coolant, a coolant outlet and a top layer of an insulating coolant are provided with a temperature probe to monitor in real time the temperature and the temperature difference between an inlet and an outlet of the coil, and fault alerts are issued when the temperature is too high or the temperature difference is too large; and a flow switch is set on the pipeline of the coil coolant to monitor the flow state of the insulating coolant, and a fault alarm is issued when the flow rate is not up to a set requirement.

41. The wet high intensity magnetic separator of any one of claims 11 to 40, wherein all operating parts of the equipment are covered with a shield and an observation window is set for a part where the operation is to be observed, and wherein the observation window uses a steel net protection to guarantee that personnel are unable to contact a running part.

42. The wet high intensity magnetic separator of any one of claims 11 to 41, wherein the excitation of the wet high intensity magnetic separator uses a constant dc input through inputting preset current in a current set unit, and then through a constant current controller, and a controlling SCR (or diode-coupled IGBT) rectifier module converts industrial electricity into a preset dc input into the coil, and wherein in the process of inputting the current into the coil, a hall element or other similar function element is provided to monitor the current and feedback to constant current controller;
wherein an output voltage is adjusted by the constant current controller to match a detection value and a preset value, thus ensuring that a current of a wet high intensity magnetic separator input coil is in accordance with the preset current of the current setting unit.

43. The wet high intensity magnetic separator of any one of claims 11 to 42, wherein the speed of the ring and the pulsation frequency of the pulsating box of the wet high intensity magnetic separator are realized by changing an output frequency of a relay ring converter and a pulse frequency converter in the adjustment system, respectively.

44. The wet high intensity magnetic separator of any one of claims 11 to 43, wherein the pulsating amplitude of the wet high intensity magnetic separator is achieved by adjusting the eccentricity of an eccentric wheel module in the pulsating box.

45. The wet high intensity magnetic separator of any one of claims 11 to 44, wherein the level of the liquid height in an observation hopper is monitored by a manual or liquid level meter, and then achieved manually or automatically by adjusting an open degree of one or more non-magnetic material discharging valves at a bottom of a non-magnetic material collecting hopper.

46. The wet high intensity magnetic separator of any one of claims 11 to 45, wherein the rinsing water quantity is realized by adjusting an opening of valves of a rinsing water outlet that are on two sides of a discharging water tank, and then provided to a flushing hopper evenly through a water separator in a flushing hopper, after shunting, the rinsing water can be more stable to restrain non-magnetic fine particles in the pulp of the sorting region and the non-magnetic material taken in the matrix box module.