Automatically controlled ferromagnetic impurity separator assembly

Abstract

The present disclosure provides a ferromagnetic impurity separator assembly, including a core rod having a magnetic area and a non-magnetic area; a magnet group arranged in the magnetic area. A non-magnetic sleeve is sleeved on the outside of the core rod and can reciprocate between a first position and a second position along the axis of the core rod. Both ends of the core rod are fixed on a frame, and the frame has a material feeding area corresponding to the magnetic area of ​​the core rod, and an impurity cleaning area corresponding to the non-magnetic area of ​​the core rod. When the non-magnetic sleeve is located at the first position, it will absorb ferromagnetic impurities in the material flow. When a certain amount of impurities are absorbed, the non-magnetic sleeve is moved to the second position. At this time, the ferromagnetic impurities in the material flow will break away from the surface of the non-magnetic sleeve and fall into the impurity cleaning area.

Description

Technical Field

[0001] The present invention relates to a device for removing ferromagnetic impurities from a material flow, and more particularly to an automatically controlled ferromagnetic impurity separator assembly. Background Art

[0002] U.S. Patent No. 4,867,869 discloses a grid-type iron remover, the main feature of which is that a movable magnetic rod is placed inside a non-magnetic outer tube to replace the traditional fixed magnetic rod. When the iron remover is in use, the non-magnetic outer tube is manually separated from the magnetic rod, and the ferromagnetic impurities accumulated on the surface of the non-magnetic outer tube are removed. This method of removing ferromagnetic impurities is not efficient on the one hand, and on the other hand, it is necessary to use a scraper plate that is separately provided to completely remove the ferromagnetic impurities adsorbed on the surface of the non-magnetic tube. Moreover, when removing the ferromagnetic impurities, the iron remover must temporarily stop the inflow of its materials.

[0003] U.S. Patent No. 8,132,674 discloses another iron remover that can continuously remove ferromagnetic impurities. However, it also requires the use of a separately provided scraper plate to remove the ferromagnetic impurities. Therefore, after operating for a period of time, the temperature may be too high, causing the magnetic rod to lose its magnetism.

[0004] In addition, China's utility model patent case No. 204602383 discloses an iron remover that is different from the above two iron removers. The iron remover has a magnetic rod assembly consisting of a magnetic rod and a shaft located at both ends of the magnetic rod, and the magnetic rod assembly is fixedly mounted on a frame. In addition, a sleeve is taken to be sleeved on the outside of the magnetic rod assembly, and the sleeve can be moved back and forth along the axis of the magnetic rod assembly to remove ferromagnetic impurities accumulated on the surface of the sleeve. One of the shortcomings of the iron remover is that its magnetic rod must be fixed to the shaft in a specific way, such as the patent case. Figure 4 As shown, the magnetic bar 31 is tightly fixed to the shaft 32 by a locking cap 38. One of the drawbacks of this design is the high manufacturing cost. Furthermore, another drawback of this iron remover is that the sleeves sleeved on each magnetic bar assembly are driven by steam pressure alone, so not only is the structure complicated, but the probability of failure is also high.

[0005] Public Content

[0006] One purpose of the present disclosure is to provide a ferromagnetic impurity separator assembly that can be used to solve the deficiencies of China's utility model patent No. 204602383.

[0007] Another object of the present disclosure is to provide a ferromagnetic impurity separator assembly that can be used to address the deficiencies of US Patent No. 4,867,869.

[0008] Another object of the present disclosure is to provide a ferromagnetic impurity separator assembly that can be used to address the deficiencies of US Patent No. 8,132,674.

[0009] In general, the ferromagnetic impurity separator assembly provided by the present disclosure has a simple structure, automated operation, low failure rate, and can effectively filter ferromagnetic impurities in a material flow.

[0010] Therefore, in order to achieve the aforementioned objectives, the ferromagnetic impurity separator assembly provided by the present disclosure includes at least one core rod made of non-magnetic material, the core rod including a magnetic area and a non-magnetic area adjacent to the magnetic area; a magnet group arranged in the magnetic area; a non-magnetic sleeve sleeved on the outside of the core rod and capable of reciprocating between a first position and a second position along the axis of the core rod, when the non-magnetic sleeve is located at the first position, it corresponds to the magnetic area of ​​the core rod, and when the non-magnetic sleeve is located at the second position, it corresponds to the non-magnetic area of ​​the core rod. One of the preferred embodiments of the present disclosure is to fix the two ends of the core rod on a frame. In addition, the frame has a feeding area corresponding to the magnetic area of ​​the core rod, and an impurity cleaning area corresponding to the non-magnetic area of ​​the core rod. When the non-magnetic sleeve is located at the first position, its surface will adsorb ferromagnetic impurities in the material flow. When a certain amount of impurities are adsorbed, the non-magnetic sleeve is moved to the second position. At this time, the ferromagnetic impurities in the material flow will break away from the surface of the non-magnetic sleeve and fall into the impurity cleaning area. The aforementioned design for removing ferromagnetic impurities from the material flow can make the ferromagnetic impurities break away in a free fall manner, without the need for a scraper plate disclosed in the prior art. Therefore, the structure is simpler, the failure rate is low, and the efficiency is high.

[0011] Another feature of the ferromagnetic impurity separator assembly provided by the present disclosure is that the core rod includes a hollow core, the hollow core has a first part and a second part, the magnet group is arranged in the second part so that the second part forms a magnetic area, and the first part forms a first non-magnetic area.

[0012] Another feature of the ferromagnetic impurity separator assembly provided by the present disclosure is that the hollow core of the core rod also includes a third portion adjacent to the second portion to form a second non-magnetic area; at the same time, the non-magnetic sleeve has a first sleeve portion and a second sleeve portion. The two ends of the core rod are respectively fixed to a frame, and the frame is provided with a feed area, and first and second impurity cleaning areas respectively located on both sides of the feed area, the feed area corresponds to the magnetic area of ​​the core rod, and the first and second impurity cleaning areas respectively correspond to the first and second non-magnetic areas of the core rod. In addition, the non-magnetic sleeve can be moved between a first position and a second position. When the non-magnetic sleeve is located at the first position, the first sleeve portion corresponds to the magnetic area of ​​the core rod, and the second sleeve portion corresponds to the second non-magnetic area of ​​the core rod. At this time, the surface of the first sleeve portion will absorb the ferromagnetic impurities in the material flow flowing from the feeding area. After a period of time, the non-magnetic sleeve is moved to the second position. At this time, the first sleeve portion with ferromagnetic impurities absorbed will move to the first non-magnetic area corresponding to the core rod, and the second sleeve portion will move to the magnetic area corresponding to the core rod. Then, the ferromagnetic impurity material absorbed on the surface of the first sleeve portion will be separated from the surface and fall into the first impurity cleaning area, while the second sleeve portion of the non-magnetic sleeve continues to absorb the ferromagnetic impurities in the material flow, waiting for the next movement to the other direction. Compared with the Chinese utility model patent No. 204602383, the biggest advantage of this design is that it can automatically and continuously filter the ferromagnetic impurities in the material flow with a simple structure.

[0013] Another feature of the ferromagnetic impurity separator assembly provided by the present invention is that a first non-magnetic inner tube is arranged inside the first part of the core rod, and a second non-magnetic inner tube is arranged inside the third part of the core rod. The first and second non-magnetic inner tubes are respectively abutted against the two sides of the magnet group, on the one hand to reinforce the strength of the core rod, and on the other hand to fix the group of magnets.

[0014] Another feature of the ferromagnetic impurity separator assembly provided by the present disclosure is that the magnet group includes multiple permanent magnets and multiple isolation plates, each of which is arranged between two adjacent permanent magnets, so that the magnetic area of ​​the core rod can have a stronger magnetic field strength.

[0015] Another feature of the ferromagnetic impurity separator assembly provided by the present disclosure is that it also includes a frame, which includes a first end wall, a second end wall, and a first side wall and a second side wall respectively between the end walls, and each of the end walls and the side walls define a accommodating space; a first and a second fixing member, which separate the accommodating chamber into a central feeding area, and a second cleaning area and a second cleaning area respectively located on both sides of the central feeding area, the feeding area is used for the inflow of materials, and the second cleaning area and the second cleaning area are used to collect ferromagnetic impurities; the core rod is fixed on the first and second end walls of the frame with its two ends respectively, and passes through each of the fixing plates, so that the magnetic area corresponds to the central feeding area, the first non-magnetic area corresponds to the first cleaning area, and the second non-magnetic area corresponds to the second cleaning area; in addition, The non-magnetic sleeve allows it to pass through each of the fixed plates and move between a first position and a second position. When the non-magnetic sleeve is located at the first position, its first sleeve portion corresponds to the magnetic area of ​​the core rod, and its second sleeve portion corresponds to the second non-magnetic area of ​​the core rod. At this time, the surface of the first sleeve portion will absorb ferromagnetic impurities in the material flow flowing in from the central feeding area. After a period of time, the non-magnetic sleeve is moved to the second position. At this time, the first sleeve portion moves to the first non-magnetic area corresponding to the core rod, so that the ferromagnetic impurity material absorbed by the surface of the first sleeve portion will detach from the surface in a free fall manner and fall into the first cleaning area. The second sleeve portion will continue to absorb the ferromagnetic impurities in the material flow because it corresponds to the magnetic area of ​​the core rod, so that the ferromagnetic impurities in the material flow can be repeatedly and continuously filtered.

[0016] Another feature of the ferromagnetic impurity separator assembly provided by the present disclosure is that it includes a plurality of core rod groups, for example, a first core rod group is located on a first plane, a second core rod group is located on a second plane, and is arranged alternately with the first core rod group. Of course, the core rod surface of each core rod group is also covered with a non-magnetic sleeve. In this way, the ferromagnetic impurities in the material flow can be effectively removed.

[0017] Another feature of the ferromagnetic impurity separator assembly provided by the present disclosure is that the magnetic impurity separator assembly also includes at least one driving member, which is fixedly connected to the non-magnetic sleeve in a cleaning area; at least one driving device, which is fixed to the frame and connected to the driving member, is used to drive the non-magnetic sleeve to reciprocate between a first position and a second position. Of course, the magnetic impurity separator assembly may also include a control device for controlling the actuation of the driving device.

[0018] Another feature of the ferromagnetic impurity separator assembly provided by the present disclosure is that it also includes at least one guide member fixed on one side wall of the frame in a manner parallel to the core rod, and the guide member is connected to the driving member so that the driving member can reciprocate under the guidance of the guide member. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional diagram of a preferred embodiment of the present disclosure, wherein the material discharge port and the impurity discharge port are shown in a state of being separated from the frame;

[0020] Figure 2 For this disclosure Figure 1 An axial cross-sectional view of the core rod of the illustrated embodiment;

[0021] Figure 3 For this disclosure Figure 1 An axial cross-sectional view of the non-magnetic sleeve of the illustrated embodiment;

[0022] Figure 4 For this disclosure Figure 1 An exploded perspective view of the core rod and the non-magnetic sleeve of the illustrated embodiment;

[0023] Figure 5 For this disclosure Figure 1 A partial structural perspective view of the embodiment shown;

[0024] Figure 6 for Figure 5 a side view of the portion of the structure shown with the non-magnetic sleeve in a first position;

[0025] Figure 7 for Figure 5 a side view of the portion of the structure shown with the non-magnetic sleeve in a second position;

[0026] Figure 8 For along Figure 6 Cross-sectional view along direction 8-8.

[0027] Description of Reference Numerals

[0028] 10 Magnetic impurity separator assembly

[0029] 100 Pneumatic Cylinder

[0030] 102 Piston

[0031] 20 Frame

[0032] 22, 24 end wall

[0033] 26, 28 Side wall

[0034] 200 Control device

[0035] 30 Accommodation Space

[0036] 32, 34 Fixed plate

[0037] 36 Central feeding area

[0038] 38 First Cleanup Area

[0039] 40 Second Cleanup Area

[0040] 42 Material outlet

[0041] 44 First impurity discharge port

[0042] 46 Second impurity discharge port

[0043] 60 core rod

[0044] 62 Core

[0045] 620 Part 1

[0046] 622 Part 2

[0047] 624 Part 3

[0048] 63, 64 Closed end

[0049] 632, 642 screw holes

[0050] 64 Magnet Set

[0051] 642 permanent magnet

[0052] 644 Isolation Sheet

[0053] 66 Magnetic Zone

[0054] 68, 70 Non-magnetic area

[0055] 72 First non-magnetic inner tube

[0056] 74 Second non-magnetic inner tube

[0057] 80 Non-magnetic sleeve

[0058] 802 First Casing Department

[0059] 804 Second Casing Department

[0060] 806 Containment Zone

[0061] 81, 83 Bushing

[0062] 82 central raised ring

[0063] 84 Flange

[0064] 86, 88 Bushing

[0065] 90, 92 driving parts

[0066] 902, 922 opening

[0067] 96 Guide rod

[0068] 98 Bushing

[0069] 100 Pneumatic Cylinder

[0070] d1, d2, d3 length DETAILED DESCRIPTION

[0071] First, see Figure 1 A preferred embodiment of the ferromagnetic impurity separator assembly disclosed in the present invention is as follows: Figure 1 As shown in the reference numeral 10 , basically, the ferromagnetic impurity separator assembly 10 includes a frame 20 , a plurality of core rods 60 , a plurality of non-magnetic sleeves 80 , and a set of pneumatic cylinders 100 .

[0072] The frame 20 has a first end wall 22, a second end wall 24, and a first side wall 26 and a second side wall 28 respectively between the end walls 22 and 24. The end walls 22 and 24 and the side walls 26 and 28 define a receiving space 30. The frame 20 also has a first and a second fixing plate 32 and 34, which divide the receiving space 30 into a central feeding area 36, ​​a first cleaning area 38 and a second cleaning area 40. The central feeding area 36 is used for the inflow of materials. A material outlet 42 is provided at the bottom of the central feeding area 36 for the discharge of materials. The first cleaning area 38 and the second cleaning area 40 are used for collecting ferromagnetic impurities. The bottoms of the first and second cleaning areas 38 and 40 are provided with a first and a second impurity discharge outlet 44 and 46, respectively.

[0073] The core rod 60, please refer to Figure 2, made of non-magnetic materials such as stainless steel, titanium alloy, copper alloy or aluminum alloy, having a hollow core 62, a first closed end 63, and a second closed end 64, each of the closed ends 63, 64 is respectively provided with a screw hole 632, 642, for fixing the core rod 60 to each of the end walls 22, 24 by bolts (not shown in the figure). The core 62 has a first portion 620, a second portion 622 and a third portion 624 in sequence, and in this embodiment, the first portion 620 and the third portion 624 have the same length; a magnet group 64 is arranged on the second portion 622, so that the second portion 622 forms a magnetic area 66, and the first portion 620 and the third portion 624 respectively form a first non-magnetic area 68 and a second non-magnetic area 70. The magnet group 64 includes a plurality of permanent magnets 642 and a plurality of spacers 644, each of which is disposed between two adjacent permanent magnets 642. In this embodiment, a first non-magnetic inner tube 72 is disposed at the first portion 620 of the core portion 62 of the core rod 60, and a second non-magnetic inner tube 74 is disposed at the third portion 624 of the core portion 62 of the core rod 60. The first and second non-magnetic inner tubes 72 and 74 are used to reinforce the strength of the core rod 60 and can also be used to abut against the two sides of the magnet group 64, in other words, the magnet group 64 is fixed to the second portion 622.

[0074] The non-magnetic sleeve 80, please refer to Figures 3 to 7 , made of non-magnetic material, and sleeved on the outside of the core rod 60. In terms of size matching, the non-magnetic sleeve 80 can be reciprocated between a first position and a second position along the rod axis of the core rod 60 after being sleeved on the surface of the core rod 60. In this embodiment, the length d1 of the non-magnetic sleeve 80 is approximately equal to the sum of the length d3 of the magnetic area 66 and one of the non-magnetic areas 68 (70) of the core rod 60. The non-magnetic sleeve 80 has a central convex ring 82 that divides the tube body into a first sleeve portion 802 and a second sleeve portion 804 of the same length. When the non-magnetic sleeve 80 is in the first position, as Figure 6 As shown, the first sleeve portion 802 corresponds to the magnetic area 66 of the core rod 60, and the second sleeve portion 804 corresponds to the second non-magnetic area 70 of the core rod 60. When the non-magnetic sleeve 80 is located at the second position, as shown in FIG. Figure 7As shown, the second sleeve 804 corresponds to the magnetic area 66 of the core rod 60, and the first sleeve portion 802 corresponds to the first non-magnetic area 68 of the core rod 60. In addition, it must be mentioned that in this embodiment, the surface of the non-magnetic sleeve 80 is provided with a plurality of equally spaced flanges 84, which are used to divide the surface of the non-magnetic sleeve 80 into a plurality of receiving areas 806, and the width and outer diameter of each flange 84 are slightly smaller than the central convex ring 82, thereby, the non-magnetic sleeve 80 can evenly absorb ferromagnetic impurities when it is at a position corresponding to the magnetic area 66 of the core rod 60, and the absorbed ferromagnetic impurities will not be scraped off by each of the fixing plates 32, 34 during reciprocating movement. Furthermore, a bushing 86, 88 is respectively provided at both ends of the non-magnetic sleeve 80, which is used to maintain the core rod 60 at the axis of the non-magnetic sleeve 80 when the core rod 60 is inserted therein, and reduce the friction when the two move relative to each other.

[0075] Please refer to Figure 5 , Figure 6 and Figure 7 The ferromagnetic impurity separator assembly 10 has seven core rods 60, which are divided into a first core rod group and a second core rod group. The first core rod group has four core rods 60 located in a first plane, parallel to each other and separated by a predetermined distance, and the second core rod group has three core rods 60 located in a second plane, parallel to each other and separated by a predetermined distance. The first plane is at a predetermined height from the second plane, and the first core rod group and the second core rod group are arranged alternately.

[0076] Each of the core rods 60 is fixed to the first and second end walls 22, 24 at its two side ends, and passes through each of the fixing plates 32, 34, so that the magnetic area 66 corresponds to the central feeding area 36, ​​the first non-magnetic area 68 corresponds to the first cleaning area 38, and the second non-magnetic area 70 corresponds to the second cleaning area 40. Each of the non-magnetic sleeves 80 passes through each of the fixing plates 32, 34 through a bushing 81, 83 and moves between the first position and the second position. When each of the non-magnetic sleeves 80 is located at the first position, as shown in FIG. Figure 6 As shown, the first sleeve portion 802 corresponds to the central feeding area 36 and the magnetic area 66 of the core rod 60, so the receiving areas 806 on its surface will evenly absorb the ferromagnetic impurities in the material flow flowing from the central feeding area 36, ​​and the second sleeve portion 804 of the non-magnetic sleeve 80 corresponds to the second cleaning area 40 and the second non-magnetic area 70 of the core rod 60. After a period of time, the non-magnetic sleeve 80 is moved to the second position. At this time, as shown in FIG. Figure 7As shown, the first sleeve portion 802 of the non-magnetic sleeve 80 will correspond to the first cleaning area 38, and the second sleeve portion 804 will correspond to the central feeding area 36. Since the first sleeve portion 802 of the non-magnetic sleeve 80 corresponds to the first cleaning area 38 and the first non-magnetic area 68 of the core rod 60, the ferromagnetic impurities adsorbed by each of the receiving areas 806 on the surface of the non-magnetic sleeve 80 will be separated from the surface and fall into the first cleaning area 38, and the second sleeve portion 804 corresponds to the central feeding area 36 and the magnetic area 66 of the core rod 60, and the ferromagnetic impurities in the material flow flowing in from the central feeding area 36 can be evenly adsorbed by each of the receiving areas 806 on the surface. In this way, when each of the non-magnetic sleeves 80 reciprocates between the first and second positions, the ferromagnetic impurities in the material flow can be automatically and continuously adsorbed and removed.

[0077] Please refer to Figure 1 and Figure 5 The magnetic impurity separator assembly 10 further includes a first driving member 90 and a second driving member 92. The first driving member 90 is located in the second cleaning area 40 and is fixed to one end of the non-magnetic sleeve 80 through the bushing 88. The second driving member 92 is located in the first cleaning area 38 and is fixed to the other end of the non-magnetic sleeve 80 through the bushing 86. In addition, the magnetic impurity separator assembly 10 also includes a driving device, which is two pneumatic cylinders 100 in this embodiment. Each of the pneumatic cylinders 100 is respectively fixed to the first and second side walls 26 and 28 of the frame 20. The piston 102 of each of the pneumatic cylinders 100 is respectively connected to the second driving member 92, thereby, each of the non-magnetic sleeves 80 can be driven by each of the two pneumatic cylinders 100 to reciprocate between the first position and the second position. Furthermore, the magnetic impurity separator assembly 10 further includes two guide rods 96, which are respectively fixed on the first and second side walls 26, 28 of the frame 20 in a manner parallel to each core rod 60, and penetrate through the openings 902, 922 provided on one side of each driving member 90, 92. In addition, a plastic bushing 98 is respectively fixed at the overlap between the two to reduce friction. In this way, each driving member 90, 92 can be driven by the driving device to move back and forth along each guide rod 96 with each non-magnetic sleeve 80. In addition, the magnetic impurity separator assembly 10 controls the action of each pneumatic cylinder 100 through a control device 200 installed on the frame 20. The control device 200 can usually be a programmable logic controller (PLC) to control each of the two pneumatic cylinders 100 to produce intermittent action, but this is not the present invention. Generally speaking, the control device 200 includes control elements such as an input module, a timing module, an execution module, and a solenoid valve.

Claims

1. A ferromagnetic impurity separator assembly, comprising: A core rod made of non-magnetic material, the core rod comprises a magnetic area, a magnet group arranged inside, and a non-magnetic area adjacent to the magnetic area; A non-magnetic sleeve, which is shorter than the core rod, is passed through the outside of the core rod and can reciprocate between a first position and a second position along the axis of the core rod; The core rod has a hollow core, the core has a first portion, a second portion, the magnet group is arranged in the second portion, so that the second portion forms the magnetic area, the first portion forms the non-magnetic area, and a third portion, adjacent to the second portion, to form another non-magnetic area; the first portion, the second portion and the third portion have the same length; The non-magnetic sleeve has a first sleeve portion and a second sleeve portion. When the non-magnetic sleeve is located at the first position, the first sleeve portion corresponds to the second portion of the core rod, and the second sleeve portion corresponds to the third portion of the core rod. When the non-magnetic sleeve is located at the second position, the first sleeve portion corresponds to the first portion of the core rod, and the second sleeve portion corresponds to the second portion of the core rod. A frame body, the frame body having a first end wall, a second end wall, and a first side wall and a second side wall respectively between the end walls, each of the end walls and the side walls defining a receiving space; a first and a second fixing plate, dividing the receiving space into a central feeding area for the material to be removed of ferromagnetic impurities, and a first cleaning area and a second cleaning area respectively located on both sides of the central feeding area; the core rod is fixedly mounted on the first and second end walls of the frame body with its two ends respectively, and passes through each of the fixing plates. The fixed plate makes the magnetic area correspond to the central feeding area, the first non-magnetic area corresponds to the first cleaning area, and the second non-magnetic area corresponds to the second cleaning area; the non-magnetic sleeve can pass through each of the fixed plates and reciprocate between the first position and the second position. When the non-magnetic sleeve is in the first position, the first sleeve portion corresponds to the central feeding area, and the second sleeve portion corresponds to the second cleaning area. When the non-magnetic sleeve is in the second position, the first sleeve portion corresponds to the first cleaning area, and the second sleeve portion corresponds to the central feeding area; Features: It also includes a first driving member, which is fixedly connected to one end of the non-magnetic sleeve and is located in the first cleaning area; a second driving member, which is fixedly connected to the other end of the non-magnetic sleeve and is located in the second cleaning area; A driving device, fixed on the frame and connected to each of the driving members, for driving the non-magnetic sleeve to reciprocate between the first position and the second position; as well as At least one guide member is fixed on one side wall of the frame in a manner parallel to the core rod, and each of the driving members is connected to the guide member in a manner that it can be guided by the guide member and move back and forth.

2. The ferromagnetic impurity separator assembly according to claim 1, characterized in that: A first non-magnetic inner tube is arranged at the first part of the core rod, and a second non-magnetic inner tube is arranged at the third part of the core rod. The first and second non-magnetic inner tubes are respectively abutted against two sides of the magnet group.

3. The ferromagnetic impurity separator assembly according to claim 1, characterized in that: The magnet group includes a plurality of permanent magnets and a plurality of isolation sheets respectively arranged between two adjacent permanent magnets.

4. The ferromagnetic impurity separator assembly according to claim 1, characterized in that: The non-magnetic sleeve includes a convex ring arranged between the first sleeve portion and the second sleeve portion.

5. The ferromagnetic impurity separator assembly according to claim 4, characterized in that: The surface of the non-magnetic sleeve is provided with a plurality of flanges which are distributed at equal intervals, so as to divide the surface of the non-magnetic sleeve into a plurality of receiving areas.

6. The ferromagnetic impurity separator assembly according to claim 1, characterized in that: The invention also comprises a control device for controlling the action of the driving device.

7. The ferromagnetic impurity separator assembly according to claim 1, characterized in that: The driving device is a pneumatic cylinder.

8. The ferromagnetic impurity separator assembly according to claim 7, characterized in that: The piston of the pneumatic cylinder is fixedly connected to the first driving member or the second driving member.

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