Multi-wheel-disc sheet type micro powder magnetic separator

Abstract

The multi-wheel disc type micro powder magnetic separator comprises a magnetic separator shell, a discharging groove and a magnetic wheel disc assembly, air enters an inner cavity from an air inlet through an air pipe, airflow flows in the inner cavity, and a plurality of magnetic disc pieces are arranged in the portions, extending into the inner cavity, of the rotary disc shell in a one-to-one correspondence and sleeved mode. Magnetic micro-powder particles in airflow are adsorbed on the surfaces of a plurality of rotary disc shells under the action of magnetic field force, treated gas is discharged out of the shells through gas outlets, the rotary disc shells are connected together at intervals in the direction perpendicular to the gas circulation direction, the airflow is divided into a plurality of branches, the sectional area of each airflow is reduced, and the airflow is more uniform. And when each air flow passes through the gap between the upper turntable shell and the lower turntable shell, the magnetic micro powder particles in the air flow are adsorbed on the rear end of the upper turntable shell, the front end of the lower turntable shell and the excircle surface of the turntable shell, so that the adsorption area of the magnetic separator is increased, and the magnetic separation efficiency of the device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to material magnetic separation equipment technical field especially relates to a multi-wheel disc piece formula micropowder magnetic separator. BACKGROUND

[0002] The existing wheel disc type micropowder magnetic separator includes a sorting cylinder and a magnetic system arranged in the sorting cylinder, a groove is arranged below the sorting cylinder, at least part of the magnetic system is arranged in the part of the sorting cylinder close to the groove, the sorting cylinder is rotated, the material falls from the feeding port, the material falls to the sorting cylinder, the sorting cylinder is rotated, under the action of the magnetic system, the screened component is attached to the sorting cylinder, and the un-screened component is discharged from the waste port along the groove, when the screened component reaches the discharging port of the cylinder, the screened component attached to the sorting cylinder is quickly separated through the flushing nozzle, since the part of the material falling in contact is only the surface of the cylindrical cylinder, the contact area is small, and the screening material efficiency is low.

[0003] It should be noted that the information disclosed in the above background section is only used to strengthen the understanding of the background of the present disclosure, and therefore can include information that does not constitute prior art known to those of ordinary skill in the art. SUMMARY

[0004] In view of the deficiencies of the prior art, the utility model discloses a multi-wheel disc piece formula micropowder magnetic separator to solve the problem that the part of the material falling in contact is only the surface of the cylindrical cylinder, the contact area is small, and the screening material efficiency is low.

[0005] The technical scheme adopted by the utility model is as follows:

[0006] A multi-wheel disc piece formula micropowder magnetic separator includes:

[0007] A magnetic separator housing has an inner cavity, the bottom end of the magnetic separator housing is provided with an air inlet, the inner cavity is internally circulated with gas, and the top end of the magnetic separator housing is provided with an air outlet;

[0008] A discharge chute is connected to the outside of the magnetic separator housing at the first end of the side surface;

[0009] A magnetic wheel disc assembly includes a plurality of magnetic disc pieces and a plurality of rotating disc housings; the rotating disc housing is a hollow disc body arranged vertically, a plurality of rotating disc housings are connected together along the vertical direction of the gas circulation direction, and all rotating disc housings are rotatably connected to the discharge chute along the axial direction, and the rotating disc housing close to the magnetic separator housing side has a part extending into the inner cavity; a plurality of magnetic disc pieces are correspondingly sleeved in the part of the rotating disc housing extending into the inner cavity, and all magnetic disc pieces are connected and fixed relative to the rotating disc housing.

[0010] Further, the technical scheme is that the plurality of discharge grooves are longitudinally arranged on the outside of the magnetic separator shell along the gas flow direction, and the plurality of magnetic wheel disc assemblies are arranged in the discharge grooves one by one.

[0011] Further, the technical scheme is that the magnetic separator shell is further provided with a gas flow shunt device arranged along the gas flow direction, the plurality of discharge grooves are symmetrically arranged on the two sides of the magnetic separator shell, the plurality of magnetic wheel disc assemblies are arranged in the discharge grooves one by one, the top end and the bottom end of the gas flow shunt device are conical, the outer wall surface of the gas flow shunt device and the inner wall surface of the magnetic separator shell have a gap and separate the inner cavity to form two shunt channels, and the part of the rotating disc shell extending into the inner cavity is tangent to the outer wall surface of the gas flow shunt device.

[0012] Further, the technical scheme is that the magnetic wheel disc assembly further comprises a fixed shaft arranged in the discharge groove along the vertical direction of the gas flow direction, and the plurality of magnetic disc pieces are arranged on the fixed shaft along the axial direction of the fixed shaft.

[0013] The magnetic wheel disc assembly further comprises a rotating shaft cylinder arranged on the outside of the fixed shaft, and the plurality of rotating disc shells are arranged at the front end and the rear end of the rotating shaft cylinder.

[0014] Further, the technical scheme is that the magnetic disc piece comprises a first disc piece and a second disc piece, the first disc piece and the second disc piece have the same circumscribed circle, the circumscribed circle is concentric with the fixed shaft and is in gap cooperation with the inner wall of the rotating disc shell, the shape of the first disc piece corresponds to the part of the circumscribed circle in the inner cavity, and the shape of the second disc piece corresponds to the part of the circumscribed circle in the discharge groove.

[0015] Further, the technical scheme is that the fixed shaft and the rear end of the rotating shaft cylinder extend out of the rear end of the magnetic separator shell, the multi-wheel disc piece type fine powder magnetic separator further comprises a driving device arranged at the rear end of the magnetic separator shell, the output end of the driving device is connected to the outside of the rear end of the rotating shaft cylinder, and the driving device drives the rotating shaft cylinder to rotate.

[0016] Further, the technical scheme is that the bottom end of the discharge groove is provided with a powder discharge port.

[0017] Further, a cleaning device is arranged on the inner wall of the side of the discharge chute away from the magnetic separator housing, the top end of the cleaning device extends to the rotating shaft cylinder, and the cleaning device contacts the outer surface of the rotating disc housing and the rotating shaft cylinder, when the magnetic micro-powder particles are rotated away from the side of the magnetic disc, the cleaning device sweeps the magnetic micro-powder particles into the discharge chute.

[0018] A magnetic separation method, applying the micro-powder magnetic separator as described above, characterized in that, comprising the following steps:

[0019] Air inlet: the gas enters the inner cavity through the air pipe from the air inlet;

[0020] Secondary flow division: the gas passes through the part of the magnetic wheel disc assembly extending into the inner cavity, passes through the gap channels formed between the rotating disc housings, and the gas is divided into several branch flows;

[0021] Separation: when the gas passes through the gap channels, the magnetic micro-powder in the gas is adsorbed on the surface of the rotating disc housing by the magnetic disc, and the gas continues to flow to the subsequent magnetic wheel disc assembly for processing;

[0022] Powder discharge: the driving device is started to drive the rotating shaft cylinder to rotate outward of the magnetic separator housing, so that the magnetic micro-powder adsorbed on the surface of the rotating disc housing is away from the magnetic disc, and the magnetic micro-powder falls into the discharge chute through the powder discharge port due to the loss of magnetic force;

[0023] Gas exhaust: the processed gas is discharged from the air outlet of the magnetic separator housing.

[0024] Further, the air inlet step further comprises the following steps:

[0025] Primary flow division: the gas passes through the airflow division device, and the gas is divided at the air inlet, and the gas flows in the flow division channel with the micro-powder;

[0026] The powder discharge step further comprises the following steps:

[0027] Cleaning: the residual magnetic micro-powder on the surface of the rotating disc housing is rotated to the cleaning device, and the residual magnetic micro-powder is swept into the discharge chute through the powder discharge port.

[0028] The beneficial effects of the embodiments of the utility model are as follows:

[0029] The application relates to a multi-wheel disc type micro-powder magnetic separator which comprises a magnetic separator shell, a discharge chute and a magnetic wheel disc assembly, gas enters an inner cavity from a gas inlet through a gas pipe, the gas flows in the inner cavity, a plurality of magnetic disc sheets are correspondingly sleeved on the part of a rotating disc shell which extends into the inner cavity, magnetic micro-powder particles in the gas flow are adsorbed on the surfaces of the rotating disc shells under the action of magnetic field force, the processed gas is discharged from the shell through a gas outlet, the rotating disc shells are connected together along the direction vertical to the gas flow direction, the gas flow is divided into a plurality of branch flows, the sectional area of each gas flow is reduced, when each gas flow passes through the gap between the upper and lower rotating disc shells, the magnetic micro-powder particles in the gas flow are adsorbed on the rear end of the upper rotating disc shell, the front end of the lower rotating disc shell and the outer circular surface of the rotating disc shell, the adsorption area of the magnetic separator is increased, and the magnetic separation efficiency of the device is improved.

[0030] Meanwhile, the rotating disc shell rotates outside the magnetic separator shell, the magnetic micro-powder particles adsorbed on the rotating disc shell are driven to rotate, when the magnetic micro-powder particles are driven to rotate to the side far away from the magnetic disc sheet, the magnetic micro-powder particles lose the magnetic force and fall into the discharge chute, the automatic separation of the magnetic micro-powder particles is realized, and the separation efficiency of the device is improved.

[0031] Further, the inner cavity of the magnetic separator shell is also provided with a gas flow shunt device, the plurality of magnetic wheel disc assemblies are symmetrically arranged on the two sides of the magnetic separator shell, the top end and the bottom end of the gas flow shunt device are conical, the gas flow shunt device divides the inner cavity into two shunt channels, and the part of the rotating disc shell which extends into the inner cavity is tangent to the outer surface of the gas flow shunt device. The gas flow shunt device effectively divides the inner cavity into two shunt channels, divides the columnar gas flow into two flat gas flows, makes the magnetic particles in the gas flow fully contact the magnetic wheel disc assembly and be separated, improves the separation effect of the magnetic particles, reduces the collision or overlapping between the particles, and improves the separation precision.

[0032] Further, the inner wall of the side of the discharge chute far away from the magnetic separator shell is provided with a cleaning device, the top end of the cleaning device extends to the rotating shaft cylinder, when the magnetic micro-powder particles are driven to rotate to the side far away from the magnetic disc sheet, the cleaning device sweeps the magnetic micro-powder particles into the discharge chute. After the magnetic micro-powder particles are adsorbed by the magnetic disc sheet through the rotating disc shell, with the rotation of the rotating shaft cylinder, the magnetic micro-powder particles gradually move away from the magnetic disc sheet, lose the magnetism and fall off, the cleaning device is designed to clean the magnetic micro-powder particles adsorbed on the surface of the rotating disc shell in time. When the particles are driven to rotate and move away from the magnetic disc sheet, the top end of the cleaning device extends to the rotating shaft cylinder through the design, helps sweep the particles, prevents the accumulation of the particles, ensures that the magnetic micro-powder can be effectively cleaned after each separation, and ensures that the magnetic micro-powder cannot stay in the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1It is a main view structural schematic diagram of the multi-wheel disc piece type micro powder magnetic separator.

[0034] Figure 2 It is a transverse section structural schematic diagram of the rotating disc shell in the multi-wheel disc piece type micro powder magnetic separator.

[0035] Figure 3 It is a longitudinal section structural schematic diagram of the magnetic wheel disc assembly in the multi-wheel disc piece type micro powder magnetic separator.

[0036] Figure 4 It is Figure 3 The enlarged view at A.

[0037] In the figure,

[0038] 100, magnetic separator shell; 101, inner cavity; 102, air inlet; 103, air outlet; 104, discharge chute; 105, powder discharge port; 200, magnetic wheel disc assembly; 210, magnetic disc piece; 220, rotating disc shell; 230, fixed shaft; 240, rotating shaft cylinder; 300, driving device; 400, air flow shunt device; 500, cleaning device. DETAILED DESCRIPTION

[0039] The specific embodiments of the present application will be described below with reference to the accompanying drawings.

[0040] In order to make the purpose, technical scheme and advantages of the present application more clear, the device proposed by the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments. According to the following description, the advantages and features of the present application will be more clear. It should be noted that the drawings are greatly simplified and all use non-precise proportions, only to facilitate and clearly assist the purpose of explaining the embodiments of the present application. In order to make the purpose, features and advantages of the present application more obvious and easy to understand, please refer to the accompanying drawings. It is known that the structure, proportion, size and the like shown in the drawings attached to the present specification are only used to cooperate with the content disclosed in the specification, so that those skilled in the art can understand and read, and are not used to limit the limiting conditions of the implementation of the present application, so they do not have the technical essence, any modification of structure, change of proportion relationship or adjustment of size, as long as it does not affect the effect and purpose that can be achieved by the present application, it should still fall within the scope of the technical content disclosed by the present application.

[0041] First embodiment:

[0042] The present embodiment discloses a multi-wheel disc piece type micro powder magnetic separator.

[0043] A multi-wheel disc piece type micro powder magnetic separator comprises a magnetic separator shell 100, a discharge chute 104 and a magnetic wheel disc assembly 200.

[0044] Figure 1 This is a schematic diagram of the main structure of the multi-disc magnetic separator for micro-powder of this utility model. Figure 1 As shown, the magnetic separator housing 100 has an inner cavity 101, an air inlet 102 is provided at the bottom of the magnetic separator housing 100, gas flows inside the inner cavity 101, and an air outlet 103 is provided at the top of the magnetic separator housing 100.

[0045] like Figure 1 As shown, the first end of the side of the unloading trough 104 is connected to the outside of the magnetic separator housing 100. For example, the bottom end of the unloading trough 104 is provided with a powder discharge port 105.

[0046] Figure 2 This is a cross-sectional schematic diagram of the rotating disc shell in the multi-disc micro-powder magnetic separator of this utility model.

[0047] Figure 3 This is a longitudinal cross-sectional schematic diagram of the magnetic disc assembly in the multi-disc micro-powder magnetic separator of this utility model.

[0048] Figure 4 for Figure 3 A magnified view at point A. (See image below.) Figures 1 to 4 As shown, the magnetic disc assembly 200 includes several magnetic discs 210 and several turntable housings 220. The turntable housings 220 are vertically arranged hollow discs. Several turntable housings 220 are connected together at intervals along a direction perpendicular to the gas flow direction, and all turntable housings 220 are rotatably connected to the unloading trough 104 around their axial direction. A portion of the turntable housing 220 near the magnetic separator housing 100 extends into the inner cavity 101.

[0049] like Figure 3 As shown, a plurality of disk platters 210 are fitted one-to-one within the portion of the turntable housing 220 extending into the inner cavity 101, and all disk platters 210 are connected and fixed relative to the turntable housing 220. Exemplarily, the magnetic wheel assembly 200 also includes a fixed shaft 230, which is fixedly disposed within the discharge trough 104 perpendicular to the gas flow direction. One side of each of the plurality of disk platters 210 is fixedly disposed at intervals along the axial direction of the fixed shaft 230. The magnetic wheel assembly 200 also includes a rotating shaft cylinder 240, which is rotatably fitted around the outside of the fixed shaft 230. A plurality of turntable housings 220 are disposed at the front and rear ends of the rotating shaft cylinder 240, the turntable housings 220 and the rotating shaft cylinder 240 being concentric, and the interior of the turntable housings 220 communicating with the interior of the rotating shaft cylinder 240.

[0050] like Figure 2As shown, further, the magnetic disk 210 includes a first piece and a second piece, the first piece and the second piece are integrally formed, have the same circumscribed circle, the circumscribed circle is concentric with the fixed shaft 230 and is in clearance fit with the inner wall of the rotating disc shell 220, the first piece is shaped to the part of the circumscribed circle located in the inner cavity 101, and the second piece is shaped to the part of the circumscribed circle located in the discharge chute 104. Both the first piece and the second piece can adsorb magnetic substances, and the magnetic substances are adsorbed on the rotating disc shell 220 by magnetic force, so as to realize the separation of the magnetic substances. Meanwhile, the second piece ensures that the magnetic substances fall into the discharge chute 104, and when the rotating disc shell 220 rotates to the second piece and enters the area of the discharge chute 104, the magnetic substances fall from the surface into the discharge chute 104, so as to complete the separation of the magnetic substances.

[0051] As shown in the figure, Figure 3 Further, the fixed shaft 230 extends out of the rear end of the magnetic separator shell 100 with the rear end of the rotating shaft cylinder 240, and the multi-wheel disc piece type fine powder magnetic separator further includes a driving device 300 arranged at the rear end of the magnetic separator shell 100, the output end of the driving device 300 is connected to the outside of the rear end of the rotating shaft cylinder 240, and the driving device 300 drives the rotating shaft cylinder 240 to rotate. During the magnetic separation process, the driving device 300 is started to make the rotating shaft cylinder 240 move periodically, so as to realize the automatic adsorption and separation of the device to the magnetic substances.

[0052] The embodiment also discloses a magnetic separation method.

[0053] A magnetic separation method, which applies the fine powder magnetic separator as described above, includes the following steps:

[0054] Step S1: air inlet: the gas enters the inner cavity 101 from the air inlet 102 through the air pipe;

[0055] Step S2: flow division: when the gas passes through the part of the magnetic wheel disc assembly 200 extending into the inner cavity 101, the gas is divided into several branch flows by several gap channels formed between the rotating disc shells 220;

[0056] Step S3: separation: when the gas passes through the gap channel, the magnetic fine powder in the gas is adsorbed on the surface of the rotating disc shell 220 by the magnetic disk 210, and the gas continues to flow to the subsequent magnetic wheel disc assembly 200 for processing;

[0057] Step S4: powder discharge: the driving device 300 is started to drive the rotating shaft cylinder 240 to rotate outward of the magnetic separator shell 100, so that the magnetic fine powder adsorbed on the surface of the rotating disc shell 220 is away from the magnetic disk 210, and the magnetic fine powder falls into the discharge chute 104 through the powder discharge port 105 by losing the magnetic force;

[0058] Step S5: gas discharge: the processed gas is discharged out of the magnetic separator shell 100 from the gas outlet 103.

[0059] In this embodiment, several rotating disc housings 220 are connected together along the direction perpendicular to the gas flow direction, which divides the gas flow into several sub-flows, reduces the cross-sectional area of each gas flow, and makes the magnetic micro-powder particles in the gas flow be adsorbed on the rear end of the upper rotating disc housing 220, the front end of the lower rotating disc housing 220 and the outer circular surface of the rotating disc housing 220 when the gas flow passes through the gap between the upper and lower rotating disc housings 220, thereby increasing the adsorption area of the magnetic separator and improving the magnetic separation efficiency of the device.

[0060] Meanwhile, the rotating disc housing 220 is rotated outside the magnetic separator housing 100, and the magnetic micro-powder particles adsorbed on the rotating disc housing 220 are driven to rotate. When the magnetic micro-powder particles are driven to rotate away from the magnetic disc 210, the magnetic micro-powder particles lose the magnetic force and fall into the discharge chute 104, thereby realizing the automatic separation of the magnetic micro-powder particles and improving the separation efficiency of the device.

[0061] Based on the first embodiment, the second embodiment further optimizes and refines the structure of the inner cavity 101 of the first embodiment.

[0062] As shown in Figure 1 , further, the discharge chute 104 has several discharge chutes 104, which are longitudinally and vertically arranged on the outside of the magnetic separator housing 100 along the gas flow direction, and the magnetic wheel disc assembly 200 has several magnetic wheel disc assemblies 200, which are one-to-one correspondingly arranged in the discharge chute 104. The arrangement of multiple magnetic wheel disc assemblies 200 increases the separation stages of the device and realizes the multi-stage separation function of the device, thereby improving the processing capacity. Each magnetic wheel disc assembly 200 sequentially performs the separation of the magnetic particles, and the multiple magnetic wheel disc assemblies 200 work in series, thereby improving the separation efficiency of the device.

[0063] As shown in Figure 1 , further, the magnetic separator housing 100 is further provided with a gas flow splitting device 400, which is vertically arranged along the gas flow direction. The discharge chute 104 is symmetrically arranged on both sides of the magnetic separator housing 100, and the magnetic wheel disc assembly 200 is one-to-one correspondingly arranged in the discharge chute 104. The top and bottom ends of the gas flow splitting device 400 are tapered, and the outer wall surface of the gas flow splitting device 400 and the inner wall surface of the magnetic separator housing 100 have a gap and separate the inner cavity 101 into two flow channels. The part of the rotating disc housing 220 extending into the inner cavity 101 is tangent to the outer wall surface of the gas flow splitting device 400. The gas flow splitting device 400 effectively separates the inner cavity 101 into two flow channels, splits the columnar gas flow entering the inner cavity 101 into two flat gas flows, and makes the magnetic particles in the gas flow fully contact the magnetic wheel disc assembly 200 and be separated, thereby improving the separation effect of the magnetic particles and reducing the collision or overlap between the particles, thereby improving the separation precision.

[0064] AsFigure 1 As shown, further, the discharge chute 104 is provided with a cleaning device 500 on the inner wall of the side of the magnetic separator housing 100 away from the magnetic disk 210, the top end of the cleaning device 500 extends to the rotating shaft cylinder 240, and the cleaning device 500 contacts the outer surface of the rotating disc housing 220 and the rotating shaft cylinder 240. When the magnetic micro-powder particles are rotated away from the magnetic disk 210, the cleaning device 500 sweeps the magnetic micro-powder particles into the discharge chute 104. After the magnetic micro-powder particles are adsorbed by the magnetic disk 210 through the rotating disc housing 220, with the rotation of the rotating shaft cylinder 240, the magnetic micro-powder particles gradually move away from the magnetic disk 210, lose magnetism and fall off. The design of the cleaning device 500 is to clean the magnetic micro-powder particles adsorbed on the surface of the rotating disc housing 220 in time. When the particles are rotated and moved away from the magnetic disk 210, the top end of the cleaning device 500 extends to the rotating shaft cylinder 240 through its design, helping to sweep off these particles, preventing the accumulation of particles, and ensuring that the magnetic micro-powder can be effectively cleaned after each separation, so that they do not stay in the equipment.

[0065] The embodiment also discloses a magnetic separation method.

[0066] A magnetic separation method, applying the micro-powder magnetic separator as described above, comprising the following steps:

[0067] Step S1: air inlet: gas enters the inner cavity 101 through the air inlet 102 through the air pipe;

[0068] Step S2: primary flow separation: the gas passes through the airflow separation device 400, and the gas is separated at the air inlet, and the gas flows in the separation channel with the micro-powder;

[0069] Step S3: secondary flow separation: the gas passes through the part of the magnetic wheel disc assembly 200 extending into the inner cavity 101, passes through the plurality of gap channels formed between the plurality of rotating disc housings 220, and the gas is divided into a plurality of branch flows;

[0070] Step S4: separation: when the gas passes through the gap channel, the magnetic micro-powder in the gas is adsorbed on the surface of the rotating disc housing 220 by the magnetic disk 210, and the gas continues to flow to the subsequent magnetic wheel disc assembly 200 for processing;

[0071] Step S5: powder discharge: the driving device 300 is started to drive the rotating shaft cylinder 240 to rotate outward of the magnetic separator housing 100, so that the magnetic micro-powder adsorbed on the surface of the rotating disc housing 220 moves away from the magnetic disk 210, the magnetic micro-powder loses magnetic force and falls into the discharge chute 104 and is discharged through the powder discharge port 105;

[0072] Step S6: cleaning: the residual magnetic micro-powder on the surface of the rotating disc housing 220 is rotated to the cleaning device 500, and the residual magnetic micro-powder is swept into the discharge chute 104 and discharged through the powder discharge port 105.

[0073] Step S7: Exhaust: The processed gas is discharged from the gas outlet 103 out of the magnetic separator shell 100.

[0074] In this embodiment, by once shunting, the columnar gas flow entering the inner cavity 101 is shunted into two flat gas flows, so that the magnetic particles in the gas flow are fully contacted with the magnetic wheel disc assembly 200 and separated, which improves the separation effect of the magnetic particles, reduces the collision or overlap between the particles, and improves the separation precision.

[0075] At the same time, through the cleaning step, the cleaning device 500 sweeps the magnetic particles remaining on the surface of the rotating disc shell 220, prevents the accumulation of particles, and ensures that the magnetic fine powder can be effectively cleaned after each separation, so that they cannot be retained in the equipment.

[0076] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description simple, all possible combinations of the technical features in the above-mentioned embodiments are not described, however, as long as the combination of the technical features does not exist contradictory, it should be considered as the scope of the present application.

[0077] The above-mentioned embodiments only express several implementation manners of the present application, the description is more specific and detailed, but it should not be understood as the limitation of the scope of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the present application patent should be subject to the appended claims.

Claims

1. A multi-disc type micro-powder magnetic separator, characterized in that, The utility model relates to a magnetic separator, and particularly relates to a magnetic separator and a magnetic disk assembly thereof. The magnetic separator comprises a magnetic separator shell (100) having an inner cavity (101), wherein a gas inlet (102) is formed at a bottom end of the magnetic separator shell (100), and a gas outlet (103) is formed at a top end of the magnetic separator shell (100); and a discharge chute (104) is connected to a side of the magnetic separator shell (100). The magnetic disk assembly (200) comprises a plurality of magnetic disk pieces (210) and a plurality of rotating disc housings (220). The rotating disc housings (220) are vertically arranged hollow disc bodies, and a plurality of the rotating disc housings (220) are connected together along a direction perpendicular to a gas flow direction, and all the rotating disc housings are rotatably connected to the discharge chute (104) along an axial direction thereof. The rotating disc housings (220) are arranged to have a portion extending into the inner cavity (101) of the magnetic separator shell (100). The magnetic disk pieces (210) are arranged to be sleeved on the portion of the rotating disc housings (220) extending into the inner cavity (101) one by one, and all the magnetic disk pieces (210) are connected together and fixed relative to the rotating disc housings (220).

2. The multi-disk plate-type fine powder magnetic separator according to claim 1, characterized in that: The discharge chute (104) has a plurality of discharge chutes (104) arranged along the gas flow direction and longitudinally spaced apart on the outside of the magnetic separator shell (100). The magnetic disk assembly (200) has a plurality of magnetic disk assemblies (200) arranged one by one in the discharge chute (104).

3. The multi-disk plate-type fine powder magnetic separator according to claim 2, characterized in that: The magnetic separator shell (100) further comprises a gas flow shunt device (400) arranged along the gas flow direction. The discharge chute (104) is symmetrically arranged on both sides of the magnetic separator shell (100), and the magnetic disk assembly (200) is arranged one by one in the discharge chute (104). The top end and the bottom end of the gas flow shunt device (400) are tapered. The outer wall surface of the gas flow shunt device (400) and the inner wall surface of the magnetic separator shell (100) have a gap therebetween, and the gap separates the inner cavity (101) into two shunt channels. The portion of the rotating disc housing (220) extending into the inner cavity (101) is tangent to the outer wall surface of the gas flow shunt device (400).

4. The multi-disk plate-type fine powder magnetic separator according to claim 3, characterized in that: The magnetic disk assembly (200) further comprises a fixed shaft (230) arranged in the discharge chute (104) along a direction perpendicular to the gas flow direction. The magnetic disk pieces (210) are arranged on the fixed shaft (230) along an axial direction of the fixed shaft (230). The magnetic wheel disc assembly (200) further comprises a rotating shaft cylinder (240) sleeved outside the fixed shaft (230), a plurality of rotating disc housings (220) are arranged at the front end and the rear end of the rotating shaft cylinder (240), the rotating disc housing (220) is concentric with the rotating shaft cylinder (240), and the interior of the rotating disc housing (220) is in communication with the interior of the rotating shaft cylinder (240).

5. The multi-disk plate-type fine powder magnetic separator according to claim 4, characterized in that: The magnetic disc sheet (210) comprises a first sheet and a second sheet, the first sheet and the second sheet have a same circumscribed circle, the circumscribed circle is concentric with the fixed shaft (230) and is in clearance fit with the inner wall of the rotating disc housing (220), the first sheet is shaped corresponding to the part of the circumscribed circle located in the inner cavity (101), and the second sheet is shaped corresponding to the part of the circumscribed circle located in the discharge chute (104).

6. The multi-disk plate-type fine powder magnetic separator according to claim 4, wherein: The fixed shaft (230) and the rear end of the rotating shaft cylinder (240) protrude from the rear end of the magnetic separator shell (100), the multi-wheel disc sheet type fine powder magnetic separator further comprises a driving device (300), the driving device (300) is arranged at the rear end of the magnetic separator shell (100), the output end of the driving device (300) is connected to the outside of the rear end of the rotating shaft cylinder (240), and the rotating shaft cylinder (240) is driven to rotate.

7. The multi-disk plate-type fine powder magnetic separator according to claim 6, characterized in that: The bottom end of the discharge chute (104) is provided with a powder discharge port (105).

8. The multi-disk plate-type fine powder magnetic separator according to claim 7, characterized in that: The inner wall of the side of the discharge chute (104) away from the magnetic separator shell (100) is provided with a cleaning device (500), the top end of the cleaning device (500) extends to the rotating shaft cylinder (240), the cleaning device (500) contacts the outer surface of the rotating disc housing (220) and the rotating shaft cylinder (240), and when the magnetic fine powder particles are driven to rotate to the side away from the magnetic disc sheet (210), the cleaning device (500) sweeps the magnetic fine powder particles into the discharge chute (104).

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