CN204866171U - Novel high gradient medium -intensity magnetic separator of permanent magnetism - Google Patents

Abstract

The utility model relates to a wet magnetic separator ore dressing equipment, in particular to a novel permanent magnetic high gradient medium magnetic separator. Including outer frame, inner frame, power components, material delivery pipe assembly, magnetic separation cylinder assembly, ore feeding hopper, magnetic separation cylinder inclination adjustment device, tailings hopper, concentrate hopper and water quality filter, the inner frame is set outside On the frame, a magnetic separation cartridge assembly is arranged on the inner frame. The feeding pipe assembly is arranged in the magnetic separation cylinder assembly, and the feeding pipe assembly is connected with the magnetic separation cylinder assembly. One end of the feeding pipe assembly is connected with the ore feeding hopper, and the other end is connected with the concentrate hopper. There is also a The tailings hopper, the power part is set at the end of the magnetic separation cylinder assembly close to the ore feeding hopper, and the water quality filter is set at the end close to the concentrate hopper. The above-mentioned magnetic separator has high magnetic field strength and long service life of the magnetic system. The magnetic field gradient is high, and the magnetic field sorting area is large. It has good energy-saving and water-saving performance, and the equipment operation cost is extremely low.

Description

A New Type Permanent Magnet High Gradient Medium Magnetic Separator

technical field

The utility model relates to a wet-type magnetic separator ore dressing equipment, in particular to a novel permanent magnet medium magnetic separator.

Background technique

At present, the domestic ordinary drum magnetic separator adopts the following structure: a permanent magnetic system is installed on the inner wall of the non-magnetic cylinder, and the ore bucket is installed at the bottom of the magnetic cylinder. On the surface of the magnetic cylinder, as the magnetic cylinder rotates and enters the concentrate hopper, the non-magnetic substances in the pulp flow out from the lower outlet pipe. Due to structural limitations, the magnetic circuit of this drum type magnetic separator is short, and the magnetic minerals (especially weak magnetic Minerals) are not easy to sort, and the magnetic field gradient cannot be very high, because if the magnetic field gradient is too high, it will cause difficulty in unloading magnetic minerals.

Utility model content

Based on this, it is necessary to focus on the short magnetic circuit of the traditional drum magnetic separator, the difficulty of sorting magnetic minerals (especially weak magnetic minerals), and the magnetic field gradient cannot be very high, because the magnetic field gradient is too high, which will cause difficulty in unloading magnetic minerals. To solve the problem, a new type of permanent magnet high gradient medium magnetic separator is provided.

A new type of permanent magnet high-gradient medium magnetic separator, including outer frame, inner frame, power components, material delivery pipe assembly, magnetic separation cylinder assembly, ore feeding bucket, magnetic separation cylinder inclination adjustment device, tailings bucket, The concentrate hopper and the water quality filter, the inner frame is arranged on the outer frame, and the magnetic separation cylinder assembly is arranged on the inner frame.

The feeding pipe assembly is arranged in the magnetic separation cylinder assembly, and the feeding pipe assembly is connected with the magnetic separation cylinder assembly. One end of the feeding pipe assembly is connected with the ore feeding hopper, and the other end is connected with the concentrate hopper. There is also a The tailings hopper, the power part is set at the end of the magnetic separation cylinder assembly close to the ore feeding hopper, and the water quality filter is set at the end close to the concentrate hopper.

In one embodiment, the magnetic separation cylinder assembly includes a magnetic system structure, a magnetic separation cylinder, a connecting flange, an outer cylinder flange, a bearing seat and a rubber sealing gasket.

Among them, the magnetic system structure is set outside the magnetic separation cylinder, and the magnetic separation cylinder is provided with an outer cylinder flange and a connecting flange. At the joint between the cylinder and the delivery pipe assembly, the inner wall of the magnetic separation cylinder is equipped with a medium screen.

In one embodiment, the magnetic system structure includes a magnetic system fixing plate, a permanent magnet block, a magnetic block protection box, and a magnetic system base.

The magnetic system base is set on the inner frame, the magnetic system base is provided with a magnetic system fixing plate, the magnetic block protection box is set on the magnetic system fixing plate, and the permanent magnet block is set in the magnetic block protection box.

In one of the embodiments, a hinge support and a gap adjustment seat are also provided at the connection between the bottom end of the magnetic system base and the inner frame.

In one of the embodiments, the bearing seat includes a bearing, a bearing sealing ring, a sealing ring gland, a bearing gland and a lubricating oil nipple.

The bearing seat is provided with a bearing connected to the material delivery pipe assembly, the bearing is provided with a bearing sealing ring, the bearing sealing ring is provided with a sealing ring cover, the bearing seat is provided with a bearing cover, and the bearing cover is provided with a lubricating oil nipple. The grease fittings are connected to the bearings.

In one embodiment, the delivery pipe assembly includes a water pipe fixing seat, a delivery pipe, a delivery pipe flange, a rinsing water pipe, an iron unloading water pipe, a rubber hose, a hopper, a leveling pipe and a deflector.

Among them, the end of the feeding pipe close to the ore feeding hopper is provided with a leveling pipe, which is arranged under the feeding pipe at a certain angle. Hopper.

A water pipe fixing seat is arranged above the feeding pipe, and the water pipe fixing seat is connected with a rubber hose, an iron unloading water pipe and a rinsing water pipe, and a feeding pipe flange is also arranged at both ends of the feeding pipe.

In one of the embodiments, the inclination adjusting device of the magnetic separation cylinder includes an adjusting screw, an adjusting hand wheel, a supporting hinge seat, a hinge pin, a screw sleeve, a thrust bearing, an adjusting seat of the screw sleeve and a lock nut.

The inclination adjustment device of the magnetic separation cylinder is a rod-shaped structure. The top of the device is provided with a support hinge seat, which is fixedly connected with the inner frame. The hinge pin is connected under the support hinge seat. Connected with the thrust bearing, the screw sleeve support seat is connected below the thrust bearing, the screw sleeve adjustment seat is fixedly connected with the outer frame, and the lock nut is arranged under the screw sleeve support seat.

In one of the embodiments, the power component includes a reducer bracket, a reducer, a motor, a pinion and a bull gear.

The reducer support is arranged on the inner frame, and the reducer and the motor are arranged on the reducer support.

After the motor is connected with the reducer, it is connected with the pinion gear, the pinion gear meshes with the large gear, and the large gear is connected with the magnetic separation cylinder.

In one of the embodiments, the connection between the inner frame and the outer frame is provided with a rotation pin of the inner frame.

In one of the embodiments, both the gear and the magnetic selection cylinder are provided with shields.

According to on-site mineral conditions and beneficiation index requirements, the inclination angle of the magnetic separation cylinder can be easily adjusted, which is conducive to obtaining the best separation index.

The magnetic field strength is high, and the magnetic system has a long service life. The magnetic system adopts NdFeB strong permanent magnet material. The distribution of the magnetic system is optimized, and the magnetic field on the inner surface of the drum can reach more than 0.6T. The demagnetization of the magnetic system shall not exceed 5% within 8 years.

The magnetic field gradient is high, and the inner wall of the magnetic separation cylinder is equipped with a special magnetic medium net, which greatly increases the magnetic field gradient in the separation area, improves the ability to capture minerals, and reduces the lower limit of magnetic separation particle size. It is especially beneficial to the recovery of fine-grained minerals.

The magnetic field sorting area is large. Minerals flow through the entire inner wall of the drum, and the path of the separation area is long, which increases the chance of contacting the magnetic medium, the recovery rate is high, and the beneficiation effect is good.

The magnetic system has a long service life. The magnetic system is not in direct contact with the ore pulp, which avoids the corrosion of the magnetic system and the erosion and wear of the ore feeding, and increases the service life of the magnetic system.

The media network will not be blocked or run out of materials.

It has good energy saving and water saving performance. This equipment saves more than 80% energy than similar electromagnetic strong magnetic machines, and the operating cost of the equipment is extremely low.

Description of drawings

Figure 1 is the front view of the equipment structure.

Figure 2 is a right view of the device structure.

Figure 3 is a left view of the device structure.

Figure 4 is a top view of the device structure.

Fig. 5 is a front view of the structure of the magnetic separation cylinder assembly.

FIG. 6 is a partially enlarged view of part A in FIG. 5 .

FIG. 7 is a partially enlarged view of part B in FIG. 5 .

Fig. 8 is a front view of the structure of the delivery pipe assembly.

Fig. 9 is a left view of the structure of the delivery pipe assembly.

Fig. 10 is a left side view of the magnetic separation cylinder inclination adjustment device.

Fig. 11 is a front view of the magnetic separation cylinder inclination adjustment device.

Figure 12 is a front view of the magnetic system structure.

Figure 13 is a top view of the magnetic system structure.

Figure 14 is a left view of the magnetic system structure.

Detailed ways

In order to facilitate the understanding of the utility model, the utility model will be described more fully below with reference to the relevant drawings. Preferred embodiments of the present utility model are provided in the accompanying drawings. However, the invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

It should be noted that when an element is referred to as being “disposed” on another element, it may be directly on the other element or there may be an intervening element. When an element is said to be "connected to" another element, it can be directly connected to the other element, or intervening elements may also be present.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of this invention. The terms used herein in the description of the utility model are only for the purpose of describing specific embodiments, and are not intended to limit the utility model.

Referring to Fig. 1, Fig. 2 and Fig. 3, a new type of permanent magnet high-gradient medium-magnetic magnetic separator includes an outer frame 1, an inner frame 2, power components, a material delivery pipe assembly 8, a magnetic separation cylinder assembly 9, and an Mine hopper 12, magnetic separation cylinder inclination adjustment device 13, tailings hopper 14, concentrate hopper 15 and water quality filter 17, inner frame 2 is arranged on outer frame 1, and magnetic separation cylinder assembly 9 is arranged on inner frame 2 .

The feeding pipe assembly 8 is arranged in the magnetic separation cylinder assembly 9, and the feeding pipe assembly 8 communicates with the magnetic separation cylinder assembly 9. One end of the feeding pipe assembly 8 is connected with the ore feeding hopper 12, and the other end is connected with the concentrate hopper 15. There is also a tailings hopper 14 under the tube assembly 8 , the power component is set at the end of the magnetic separation cylinder assembly 9 close to the ore feeding hopper 12 , and the water quality filter 17 is set at the end close to the concentrate hopper 15 .

Referring to FIG. 2 and FIG. 5 , preferably, the magnetic separation cylinder assembly 9 includes a magnetic system structure 11 , a magnetic separation cylinder 18 , a connecting flange 19 , an outer cylinder flange 24 , a bearing seat 25 and a rubber gasket 28 .

Among them, the magnetic system structure 11 is arranged outside the magnetic separation cylinder 18, and the magnetic separation cylinder 18 is provided with an outer cylinder flange 24 and a connecting flange 19, and a rubber gasket is provided at the connection between the outer cylinder flange 24 and the connecting flange 19 28. The bearing seat 25 is arranged at the connection between the magnetic separation cylinder 18 and the material delivery pipe assembly 8, and the inner wall of the magnetic separation cylinder 18 is equipped with a medium screen.

Referring to FIG. 12 , FIG. 13 and FIG. 14 , preferably, the magnetic system structure 11 includes a magnetic system fixing plate 46 , a permanent magnet block 51 , a magnetic block protection box 47 , and a magnetic system base 48 .

The magnetic system base 48 is arranged on the inner frame 2, the magnetic system base 48 is provided with a magnetic system fixing plate 46, the magnetic block protection box 47 is arranged on the magnetic system fixing plate 46, and the permanent magnet block 51 is arranged on the magnetic block protection box Within 47. The permanent magnet blocks 51 are distributed in a gradient on the magnetic system fixing plate 46 in the circumferential direction, thereby ensuring a higher gradient in the magnetic system, and simultaneously making it easy to unload the separated magnetic materials in the non-magnetic separation area.

Referring to FIGS. 12 and 14 , preferably, a hinge support 49 and a gap adjustment seat 50 are provided at the connection between the bottom end of the magnetic system base 48 and the inner frame 2 . The magnetic system base 48 can be rotated along the hinge support 49 by turning the nut on the distance adjusting seat 50 , thereby adjusting the gap between the magnetic system assembly 3 and the outer wall of the magnetic separation cylinder 18 .

Referring to FIG. 5 , FIG. 6 and FIG. 7 , preferably, the bearing seat 25 includes a bearing 26 , a bearing sealing ring 21 , a sealing ring gland 22 , a bearing gland 23 and a lubricating oil nipple 27 .

The bearing seat 25 is arranged at the junction of the magnetic separation cylinder 18 and the feeding pipe assembly 8, and the bearing seat 25 is provided with a bearing 26 connected with the feeding pipe assembly 8. The bearing 26 is provided with a bearing sealing ring 21, and the bearing sealing ring 21 is A sealing ring gland 22 is provided, and a bearing gland 23 is arranged outside the bearing seat 25 , and a lubricating oil nipple 27 is arranged on the bearing gland 23 , and the lubricating oil nipple 27 is connected to the bearing 26 .

Referring to Fig. 8 and Fig. 9, preferably, the feeding pipe assembly 8 includes a water pipe fixing seat 31, a feeding pipe 30, a feeding pipe flange 29, a rinsing water pipe 32, an iron unloading water pipe 33, a rubber hose 34, and a hopper 35 , Homogenizing pipe 36 and deflector 37.

Wherein, one end of the feeding pipe 30 close to the ore feeding hopper 12 is provided with a homogenizing pipe 36, and the homogenizing pipe 36 is arranged below the feeding pipe 30, inclined at a certain angle, and a deflector 37 is also provided under the homogenizing pipe 36. , The middle section of the feeding pipe 30 is provided with a receiving hopper 35 .

A water pipe fixing seat 31 is provided above the feeding pipe 30, and the water pipe fixing seat 31 is connected with a rubber hose 34, an iron unloading water pipe 33 and a rinsing water pipe 32, and a feeding pipe flange 29 is also provided at the feeding pipe 30 two ends.

With reference to Fig. 10 and Fig. 11, preferably, the inclination angle adjusting device 13 of the magnetic separation tube comprises an adjusting screw 38, an adjusting hand wheel 39, a supporting hinge seat 40, a hinge pin 41, a screw sleeve 42, a thrust bearing 43, and a screw sleeve Adjust seat 44 and lock nut 45.

The magnetic separation tube inclination adjustment device 13 is a rod-shaped structure, the top of the device is provided with a supporting hinge seat 40, which is fixedly connected with the inner frame 2, and the hinge pin 41 is connected below the supporting hinge seat 40, and an adjusting hand is provided below the hinge pin 41. Wheel 39, the bottom of the adjustment hand wheel 39 is connected with the thrust bearing 43, the screw sleeve support seat 44 is connected with the thrust bearing 43, the screw sleeve adjustment seat 44 is fixedly connected with the outer frame 1, and the lock nut 45 is arranged on the screw rod Cover support seat 44 below.

When it is necessary to adjust the inclination of the magnetic selection cylinder 18, first loosen the lock nut 45, then turn the adjustment handwheel 39, and the adjustment screw 38 that is set with the adjustment handwheel 39 rises (rotate the handwheel clockwise) or descends (counterclockwise) Turn the handwheel), and the support hinge seat 40 connected to the adjustment screw mandrel 38 rises or falls accordingly, thereby driving the inner frame 2 channel steel connected to the support hinge seat 40 to rise or fall.

Because the magnetic separation tube assembly is installed on the inner frame 2, and is connected with the outer frame 1 through the inner frame rotation pin 16 of the inner frame 2 (not shown in the figure), so the magnetic separation tube 18 and the inner frame 2 can be By adjusting the rise or fall of the screw rod 38 and rotating along the rotating pin shaft 16 of the inner frame, the inclination angle of the magnetic separation cylinder can be changed to meet the needs of different beneficiation processes.

Referring to FIG. 2 and FIG. 4 , preferably, the power components include a reducer bracket 4 , a reducer 3 , a motor 5 , a pinion 6 and a bull gear 7 .

The reducer support 4 is arranged on the inner frame 2 , and the reducer 3 and the motor 5 are arranged on the reducer support 4 .

The reducer 3 is connected with the pinion 6 after being connected with the motor 5, and the pinion meshes with the 6 large gears 7, and the large gear 7 is connected with the magnetic separation cylinder 18.

Preferably, the connection between the inner frame 2 and the outer frame 1 is provided with an inner frame rotation pin 16 .

Preferably, a shield 10 is provided on both the gear and the magnetic separation cylinder 18 .

The working principle of the utility model equipment is as follows:

After the ore slurry enters the ore feeding hopper 12, it enters the homogenizing pipe 36 through the feeding pipe flange 29 on one side of the feeding pipe 30, and then flows into the inner wall of the magnetic separation cylinder 18. The magnetic separation cylinder 18 has a certain inclination (adjustable inclination angle), and its inner wall is equipped with a medium (box) net plate.

The ore pulp flows from a high place to a low place on the inner wall of the magnetic separation cylinder 18 . When the pulp passes through the magnetic separation area, the magnetic substance is adsorbed on the magnetic medium, and is taken by the rotating magnetic separation cylinder 18 to the position of the upper iron unloading water pipe 33 (this position is the non-magnetic area). Pressurized water is sprayed from the pipe to wash the medium (box) net on the inner wall of the magnetic separation cylinder 18, so that the magnetic product falls into the receiving hopper 35 and is discharged from the other side of the feeding pipe 30 through the concentrate hopper 15.

The non-magnetic minerals flow out along the inner wall of the magnetic separation cylinder 18 through the medium net, and enter the tailings hopper 14 to be discharged. The magnetic separation cylinder 18 is provided with a rinsing water pipe 32 for rinsing the magnetic products so as to improve the grade of the concentrate. As the slurry is continuously fed, the concentrate and tailings are continuously discharged, forming a continuous separation process.

The utility model implementation effect is as follows:

Taigang Group Lanxian Mining Co., Ltd. (Yuanjiacun Iron Mine) is currently the largest integrated mining and dressing mine in Asia. It is designed to process 22 million tons of raw ore per year and produce 7.418 million tons of iron concentrate powder with a grade of 65%.

The ore belongs to Anshan-style red (magnetic) mixed lean iron ore with micro-grain embedded, open-pit mining, automobile-semi-mobile crushing-belt transportation process, ore dressing adopts the grinding process of semi-autogenous grinding + two-stage ball milling and weak magnetic - strong magnetic - Regrinding - Anion reverse flotation process.

Weak magnetic separation uses CTB1230 magnetic separator to recover strong magnetic minerals in advance to prepare for subsequent strong magnetic separation. However, in actual production, the separation effect of weak magnetic separator on strong magnetic minerals is not ideal, and there is still a certain amount of fine-grained magnetic iron (MFe>1%) in the tailings, resulting in a high neutral ring in the subsequent process. The gradient strong magnetic machine has the phenomenon of clogging in the sorting area and magnetic medium. After the sorting area is blocked, regular shutdown and manual drilling will not only affect the equipment operation rate and reduce production, but also increase the maintenance cost, thereby affecting economic benefits.

The new permanent-magnet high-gradient medium-magnet machine developed by our company has been tested for industrial operation in the beneficiation department of Taigang Group Lanxian Mining Co., Ltd., and has achieved good technical indicators and obvious economic benefits.

After obtaining better beneficiation indicators through many laboratory tests, the product of the utility model is installed in the production site of the beneficiation department of Taigang Lan County Mining Company. In the case of the same ore feeding conditions, the industrial comparison test was carried out with the CTB1230 permanent magnet drum magnetic separator originally used by the customer.

Under the same ore feeding conditions, the production data of CTB-1230 permanent magnetic drum magnetic separator are as follows:

Under the same condition of ore feeding conditions, the production data of the utility model product is as follows:

Can find out by comparative test, under the same condition of raw ore, under the situation of satisfying the concentrate grade (48%) in the process requirement, the utility model is compared with CTB1230 type permanent magnet drum type magnetic separator separation concentrate yield 16.05 percentage points higher, concentrate recovery rate (%) 21.47 percentage points higher.

This is because the magnetic machine pulp is fed from one end of the magnetic separator in the high gradient of the permanent magnet, and is discharged from the other end after separation. The magnetic field separation area is large, and the path for minerals to pass through the separation area is long, which increases the contact with the magnetic medium. Opportunities, grades and yields have all been improved, with good sorting indicators.

It can also be seen from the comparison test that under the same conditions as the original ore, the tailings magnetic iron of the permanent magnet high-gradient magnetic machine is only 0.06%. This shows that the strong magnetic minerals in the pulp are basically completely enriched, and there will be no clogging of the subsequent strong magnetic separator. At the same time, the concentrate yield has increased, and the tailings grade has decreased, which fully demonstrates that some weakly magnetic minerals in the minerals have also been recycled, reducing the amount of ore fed to the high-speed magnetic separator, which is conducive to improving the use effect of the subsequent strong and strong magnetic machines.

It has been used continuously for 10 months since July 2014, and there is no phenomenon of media clogging or material running out.

The on-site industrial test of the new permanent magnet high-gradient medium magnetic separator in Taigang Lanxian Mining Company shows that compared with the permanent magnet drum magnetic separator, the concentrate yield is higher when the concentrate grade in the process requirements is met. , The recovery rate of concentrate is higher, the content of magnetic iron in tailings is lower, and the technical indicators have strong advantages, which have brought considerable economic benefits.

The magnetic field strength, drum inclination angle, and drum speed of the above-mentioned new permanent magnet high-gradient medium magnetic separator can be adjusted conveniently according to the mineral conditions on site and the beneficiation index requirements, which is conducive to obtaining the best separation index.

The magnetic field strength is high, and the magnetic system has a long service life. The magnetic system adopts NdFeB strong permanent magnet material. The distribution of the magnetic system is optimized, and the magnetic field on the inner surface of the drum can reach more than 0.6T. The demagnetization of the magnetic system shall not exceed 5% within 8 years.

The magnetic field gradient is high, and the inner wall of the drum is equipped with a special magnetic medium net, which greatly increases the magnetic field gradient in the separation area, improves the ability to capture minerals, and reduces the lower limit of magnetic separation particle size. It is especially beneficial to the recovery of fine-grained minerals.

The magnetic field sorting area is large. Minerals flow through the entire inner wall of the drum, and the path of the separation area is long, which increases the chance of contacting the magnetic medium, the recovery rate is high, and the beneficiation effect is good.

The magnetic system has a long service life. The magnetic system is not in direct contact with the ore pulp, which avoids the phenomenon of magnetic system corrosion and ore erosion and wear, and increases the service life of the magnetic system.

The media network will not be blocked or run out of materials.

It has good energy saving and water saving performance. This equipment saves more than 80% energy than similar electromagnetic strong magnetic machines, and the operating cost of the equipment is extremely low.

The above-mentioned embodiments only express several implementations of the utility model, and the description thereof is relatively specific and detailed, but it should not be construed as limiting the patent scope of the utility model. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the scope of protection of the utility model patent should be based on the appended claims.

Claims (9)

1. A new type of permanent magnet high-gradient medium magnetic separator, including outer frame, inner frame, power components, material delivery pipe assembly, magnetic separation cylinder assembly, ore feeding hopper, magnetic separation cylinder inclination adjustment device, tailings Buckets, concentrate buckets and water quality filters are characterized in that the inner frame is arranged on the outer frame, and the magnetic separation cylinder assembly is arranged on the inner frame; The feeding pipe assembly is arranged in the magnetic separation cylinder assembly, the feeding pipe assembly communicates with the magnetic separation cylinder assembly, one end of the feeding pipe assembly is connected to the ore feeding hopper, and the other end is connected to the The concentrate hopper is connected, and the tailings hopper is also provided under the feeding pipe assembly. One end of the concentrate bucket. 2. A new type of permanent magnet high-gradient medium magnetic separator according to claim 1, wherein the magnetic separation cylinder assembly includes a magnetic system structure, a magnetic separation cylinder, a connecting flange, an outer cylinder flange, Bearing housings and rubber seals; Wherein, the magnetic system structure is arranged outside the magnetic separation cylinder, and the magnetic separation cylinder is provided with the outer cylinder flange and the connecting flange, and the outer cylinder flange and the connecting flange The rubber sealing gasket is provided at the joint, the bearing seat is arranged at the joint of the magnetic separation cylinder and the material delivery pipe assembly, and the inner wall of the magnetic separation cylinder is equipped with a medium screen. 3. A new type of permanent magnet high gradient medium magnetic separator according to claim 2, characterized in that the magnetic system structure comprises a magnetic system fixing plate, a permanent magnet block, a magnetic block protection box, and a magnetic system base ; The magnetic system base is set on the inner frame, the magnetic system base is provided with a magnetic system fixing plate, the magnetic block protection box is set on the magnetic system fixing plate, and the permanent magnet block is set in the magnetic block protection box. 4. A new type of permanent magnet high gradient medium magnetic separator according to claim 3, characterized in that the connection between the bottom end of the magnetic system base and the inner frame is also provided with a hinged support and a gap adjustment seat. 5. A new type of permanent magnet high-gradient medium-magnetic magnetic separator according to claim 2, wherein the bearing seat includes a bearing, a bearing sealing ring, a sealing ring gland, a bearing gland, a bearing sealing ring, Sealing ring gland, bearing gland and lubricating oil nipple; The bearing seat is provided inside the bearing to connect with the material delivery pipe assembly, the bearing seal ring is provided on the bearing seat, the seal ring gland is provided outside the bearing seat seal ring, and the bearing seat externally There is the bearing cover, the bearing cover is provided with the lubricating oil nipple, and the lubricating oil nipple is connected to the bearing. 6. A new type of permanent magnet high-gradient medium-magnetic magnetic separator according to claim 1, wherein the feeding pipe assembly includes a water pipe fixing seat, a feeding pipe, a feeding pipe flange, a rinsing water pipe, Unloading water pipes, rubber hoses, receiving hoppers, leveling pipes and deflectors; Wherein, the end of the feeding pipe close to the ore hopper is provided with the ore leveling pipe, and the ore evening pipe is arranged below the feeding pipe, inclined at a certain angle. The deflector is provided, and the feeding hopper is provided in the middle section of the feeding pipe; The water pipe fixing seat is provided above the feeding pipe, and the water pipe fixing seat is connected with the rubber hose, the iron unloading water pipe and the rinsing water pipe, and the two ends of the feeding pipe are also provided with The delivery pipe flange. 7. A new type of permanent magnet high-gradient medium magnetic separator according to claim 1, characterized in that, the inclination adjustment device of the magnetic separation cylinder includes an adjusting screw, an adjusting hand wheel, a supporting hinge seat, and a hinge pin , screw sleeve, thrust bearing, screw sleeve adjustment seat and lock nut; The inclination adjustment device of the magnetic separation cylinder is a rod-shaped structure, the top of the device is provided with the support hinge seat, which is fixedly connected with the inner frame, and the hinge pin is connected under the support hinge seat, and the hinge pin The adjustment handwheel is arranged under the shaft, and the lower part of the adjustment handwheel is connected with the thrust bearing. The frame is fixedly connected, and the locking nut is arranged under the supporting seat of the screw sleeve. 8. A new type of permanent magnet high-gradient medium-magnetic magnetic separator according to claim 1, wherein the power components include a reducer bracket, a reducer, a motor, a pinion and a bull gear; The reducer support is arranged on the inner frame, and the reducer and the motor are arranged on the reducer support; After the motor is connected with the reducer, it is connected with the pinion gear, the pinion gear meshes with the large gear, and the large gear is connected with the magnetic separation cylinder. 9. A new type of permanent magnet high-gradient medium-magnetic separator according to claim 1, characterized in that an inner frame rotation pin is provided at the joint between the inner frame and the outer frame.