A circulating structure for cleaning neodymium iron boron waste

Abstract

A circulation structure for cleaning neodymium iron boron waste, comprising a cleaning cavity and a circulation pipeline, a sealing baffle is arranged in the cleaning cavity, the sealing baffle can separate the cleaning cavity into an upper cavity and a lower cavity when moving downwards, and a one-way valve is arranged on the sealing baffle to allow the cleaning liquid to flow from the upper cavity to the lower cavity. The circulation pipeline comprises a lower connecting pipe connected with the bottom of the cleaning cavity, a vertical pipe connected with the lower connecting pipe, an upper connecting pipe connected with the vertical pipe, and the upper connecting pipe is connected with the upper part of the cleaning cavity. A filter cartridge is also connected in the circulation pipeline, the filter cartridge is located at the lowest position of the circulation pipeline, a drainage pipe is connected with the filter cartridge, and a drainage valve is arranged on the drainage pipe. Compared with the prior art, the present application has the following beneficial effects: the circulation is carried out by using pressure difference, and the problem that impurities or too small waste particles damage the pump body during circulation is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of neodymium iron boron waste cleaning equipment, and particularly relates to a circulating structure for neodymium iron boron waste cleaning. BACKGROUND

[0002] Neodymium iron boron is an important permanent magnet material, which is widely used in wind turbines, electric vehicle motors and other fields. After use, a large amount of neodymium iron boron waste is formed, and these wastes still contain a lot of valuable rare earth elements. Therefore, the recycling of neodymium iron boron waste is an important process in the production process of neodymium iron boron materials.

[0003] In the prior art, a circulating liquid pump is generally used during waste recycling to recycle the cleaning liquid to save the amount. In order to avoid the abrasion of impurity particles in the cleaning liquid to the components of the circulating liquid pump, a filtering device is arranged at the front end of the circulating liquid pump to remove the impurity particles generated during cleaning. However, the following problems exist:

[0004] 1. In order to ensure the circulation efficiency, the filtering device usually adopts coarse filtration, which means that the filtering device can only filter out larger particles, and smaller impurity particles may not be completely filtered out. Therefore, even if the filtered cleaning liquid is recycled again, a certain amount of impurity particles still exist in it. These particles may cause damage to the internal components of the circulating liquid pump, reducing its service life and performance.

[0005] 2. Due to the existence of a large amount of impurity particles or neodymium iron boron waste particles in the circulating liquid during the cleaning process, the filtering mechanism is easily blocked. Once the filter is blocked, the flow of the circulating liquid will be limited, resulting in a decrease in the circulation efficiency. In order to restore the normal flow of the circulating liquid, the filter needs to be cleaned frequently, which increases the workload of operation and maintenance, and also affects the continuity and efficiency of the cleaning process.

[0006] Therefore, based on the above some situations in the prior art, the present application has been further designed and improved. SUMMARY

[0007] In order to solve the problems existing in the prior art, the present application provides a circulating structure for neodymium iron boron waste cleaning, which can solve the problems of easy damage of the circulating liquid pump body and easy blockage of the filtering mechanism in the circulating technology.

[0008] The technical scheme of the present application is as follows:

[0009] The application discloses a circulating structure for cleaning neodymium iron boron waste, which comprises a cleaning cavity and a circulating pipeline.

[0010] During the circulation, the cleaning liquid is squeezed into the circulating pipeline under the pressing of the sealing plug plate, and the impurity particles cleaned off sink into the filter cartridge during the ascending of the cleaning liquid in the vertical pipeline, so that the filtering is realized during the circulation, and the cleaning effect of the cleaning liquid is improved.

[0011] As a preferred embodiment of the application, the one-way valve comprises a limiting ring on the upper surface of the sealing plug plate, a plurality of sliding columns are arranged on the limiting ring, the sliding columns are slidably arranged through the sealing plug plate and are provided with sealing plates at the end portions, and a through hole is arranged on the sealing plug plate; when the one-way mechanism is in the closed state, the upper surface of the sealing plate is attached to the lower surface of the sealing plug plate and covers the through hole. The opening and closing of the one-way valve can be controlled by the lifting of the sealing plug plate, and the structure is simple and the control is reliable.

[0012] As a preferred embodiment of the application, the circulating pipeline further comprises a first three-way pipe, the vertical pipeline is connected with the upper connecting pipe through the first three-way pipe, a liquid inlet pipe is further connected to the first three-way pipe, the liquid inlet pipe is located at the highest position of the circulating pipeline, and a liquid inlet valve is connected to the liquid inlet pipe. The worker can inject liquid into the cleaning cavity through the liquid inlet pipe, the liquid injection is convenient, and the liquid amount can be accurately controlled.

[0013] As a preferred embodiment of the application, the bottom of the cleaning cavity is in the shape of an inverted circular table, and the lower connecting pipe is arranged in a downward inclination, so that the cleaned waste can be prevented from being accumulated in the cleaning cavity.

[0014] As a preferred embodiment of the application, the circulating pipeline further comprises a second three-way pipe, three interfaces of the second three-way pipe are connected with the lower connecting pipe, the vertical pipeline and the filter cartridge, and the filter cartridge is convenient for workers to disassemble and assemble.

[0015] As a preferred embodiment of the application, the filter cylinder is provided with an inlet and an outlet, the inlet is connected with the lower connecting pipe, the outlet is connected with the vertical pipe, and the outlet is provided with a filter, which is helpful to improve the filtering effect, so that the impurities of the recycled cleaning liquid are less, and the cleaning effect is better.

[0016] Compared with the prior art, the application has the following beneficial effects:

[0017] 1. The differential pressure is used for circulation, which avoids the problem that the impurity particles generated during cleaning damage the pump body during circulation.

[0018] 2. The circulation has a height difference, and the impurity particles sink to realize the filtration of waste, which avoids the problem that the traditional circulation mechanism is easy to block the filter port. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a perspective view of the circulation structure.

[0020] Figure 2 It is a top view of the sealing plug plate.

[0021] Figure 3 It is a structure schematic view of an embodiment of the circulation structure applied in the cleaning device.

[0022] Figure 4 It is a structure schematic view of another embodiment of the circulation structure applied in the cleaning device.

[0023] Figure 5 It is a perspective view of the assembly of the sealing plug plate and the inner cylinder.

[0024] The following is the label description in the drawings of the specification:

[0025] 10, outer cylinder; 11, cleaning cavity;

[0026] 20, inner cylinder; 21, through hole; 22, wall plate;

[0027] 30, sealing plug plate; 31, through hole; 32, through slot;

[0028] 40, one-way valve; 41, limiting ring; 42, sliding column; 43, sealing plate;

[0029] 50, lower connecting pipe; 51, vertical pipe; 52, upper connecting pipe; 53, first three-way pipe; 54, second three-way pipe; 55, liquid inlet pipe; 56, liquid inlet valve;

[0030] 60, filter cylinder; 61, liquid discharge pipe; 62, liquid discharge valve; 63, filter. DETAILED DESCRIPTION

[0031] The application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] In the following embodiments, identical or similar reference numerals denote identical or similar elements or elements having identical or similar functions throughout the description, and the embodiments described below with reference to the drawings are exemplary and are only used to explain the application and cannot be understood as limiting the application.

[0033] In the description of the application, it should be understood that the terms: center, longitudinal, transverse, length, width, thickness, upper, lower, front, rear, left, right, vertical, horizontal, top, bottom, inner, outer, clockwise, counterclockwise, etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the application and simplifying the description, and therefore cannot be understood as limiting the application. In addition, the terms: first, second, etc. are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features shown. In the description of the application, unless otherwise specifically specified and limited, the terms: mounting, connecting, connecting, etc. should be understood in a broad sense, and those skilled in the art can understand the specific meaning of the above terms in the application according to the specific circumstances.

[0034] Reference Figure 1 And Figure 2 A circulating structure for cleaning neodymium iron boron waste, comprising a cleaning cavity 11 and a circulating pipeline, the cleaning cavity 11 is assembled with a sealing baffle 30, the sealing baffle 30 can separate the cleaning cavity 11 into upper cavity and lower cavity when moving down, the sealing baffle 30 is assembled with a one-way valve 40 allowing the cleaning liquid to flow from the upper cavity to the lower cavity. The circulating pipeline comprises a lower connecting pipe 50 connected with the bottom of the cleaning cavity 11, the lower connecting pipe 50 is connected with a vertical pipe 51, the vertical pipe 51 is connected with an upper connecting pipe 52, and the upper connecting pipe 52 is connected to the upper part of the cleaning cavity 11. The circulating pipeline is also connected with a filter cartridge 60, the filter cartridge 60 is at the lowest position of the circulating pipeline, the filter cartridge 60 is connected with a drain pipe 61, and the drain pipe 61 is provided with a drain valve 62.

[0035] The circulating structure described in the application is applied in the neodymium iron boron waste cleaning equipment, which can recycle the cleaning liquid and greatly save the cleaning cost. During circulation, the sealing baffle is pressed down, the cleaning liquid is squeezed into the circulating pipeline, and the waste particles cleaned down will sink into the filter cartridge 60 during the rising process of the cleaning liquid into the vertical pipe 51. The application utilizes pressure difference for circulation, which avoids the problem of damaging the pump body by impurity particles during circulation, and realizes filtration during circulation, thereby improving the cleaning effect of the cleaning liquid.

[0036] Reference 3 to Figure 5The application is applied to a neodymium iron boron waste cleaning device, which comprises an outer cylinder 10, an inner cylinder 20 and a circulating pipeline. The cleaning cavity 11 is located in the outer cylinder 10, the inner cylinder 20 is assembled in the cleaning cavity 11, the sealing plug plate 30 is assembled with the inner cylinder 20, and the through hole 21 for the flow of cleaning liquid is arranged on the cylinder wall of the inner cylinder 20. The sealing plug plate 30 is driven by an external motor. Specifically, the inner cylinder 20 comprises a plurality of wall plates 22 with gaps between each other, and a plurality of through grooves 32 for the wall plates 22 to pass through are arranged on the sealing plug plate 30, so that the rotation of the sealing plug plate 30 can drive the inner cylinder 20 to rotate, and the lifting of the sealing plug plate 30 will not affect the inner cylinder 20.

[0037] During cleaning, the neodymium iron boron waste to be cleaned is loaded into the inner cylinder 20, and the cleaning liquid is injected into the cleaning cavity 11 until the cleaning liquid completely covers the neodymium iron boron waste or the cleaning cavity 11 is filled with the cleaning liquid. The sealing plug plate 30 drives the inner cylinder 20 to rotate to clean the neodymium iron boron waste. The cleaning is paused, the sealing plug plate 30 is lowered, and the cleaning liquid drives the impurity particles cleaned to enter the circulating pipeline. The filtered cleaning liquid enters the upper cavity of the cleaning cavity 11, the sealing plug plate 30 is raised, the one-way valve 40 is opened, and the cleaning liquid enters the lower cavity to immerse the waste. Then the sealing plug plate 30 is rotated again to clean the neodymium iron boron waste. The above steps are repeated until the cleaning is completed. After the cleaning is completed, the drain valve 62 is opened to drain the cleaning liquid, and then the cleaned waste in the inner cylinder 20 is taken out.

[0038] In the application, the opening and closing of the one-way valve 40 can be controlled by the lifting of the sealing plug plate 30, which is simple in structure and reliable in control. The structure is as follows: the one-way valve 40 comprises a limiting ring 41 located on the upper surface of the sealing plug plate 30, a plurality of sliding columns 42 are arranged on the limiting ring 41, the sliding columns 42 slidably pass through the sealing plug plate 30 and are provided with sealing plates 43 at the end portions, and a through hole 31 is arranged on the sealing plug plate 30. When the one-way mechanism is in the closed state, the upper surface of the sealing plate 43 is attached to the lower surface of the sealing plug plate 30 and covers the through hole 31.

[0039] Particularly, the circulating pipeline further comprises a first three-way pipe 53, the vertical pipe 51 is connected with the upper connecting pipe 52 through the first three-way pipe 53, and the first three-way pipe 53 is further connected with a liquid inlet pipe 55. The liquid inlet pipe 55 is located at the highest position of the circulating pipeline, and the liquid inlet pipe 55 is connected with a liquid inlet valve 56. Workers can inject liquid into the cleaning cavity 11 through the liquid inlet pipe 55, which is convenient and can accurately control the liquid volume. The bottom of the cleaning cavity 11 is in the shape of an inverted circular table, and the lower connecting pipe 50 is inclined downward, which can avoid the accumulation of cleaned waste in the cleaning cavity 11.

[0040] As a preferred embodiment of the application, as shown in Figure 3As shown, the circulating pipeline further comprises a second tee joint 54, three interfaces of the second tee joint 54 are connected with the lower connecting pipe 50, the vertical pipe 51 and the filter cartridge 60 respectively, so as to facilitate workers to disassemble and assemble the filter cartridge 60.

[0041] As another preferred embodiment of the present application, as shown in Figure 4 As shown, the filter cartridge 60 is provided with an inlet and an outlet, the inlet is connected with the lower connecting pipe 50, the outlet is connected with the vertical pipe 51, and a filter 63 is arranged on the outlet, so as to improve the filtering effect, so that the circulating cleaning liquid has less impurities and has better cleaning effect.

[0042] The protection scope of the present application includes but is not limited to the above embodiments, the protection scope of the present application is subject to the claims, and any replacement, deformation and improvement of the present technology which is easily thought by the skilled in the art falls within the protection scope of the present application.

Claims

1. A circulating structure for cleaning NdFeB waste, characterized in that, It includes a cleaning chamber (11) and a circulation pipeline. The cleaning chamber (11) is equipped with a sealing plug plate (30). When the sealing plug plate (30) moves downward, it can divide the cleaning chamber (11) into an upper chamber and a lower chamber. The sealing plug plate (30) is equipped with a one-way valve (40) that allows the cleaning fluid to flow from the upper chamber to the lower chamber. The circulation pipeline includes a lower connecting pipe (50) connected to the bottom of the cleaning chamber (11), a vertical pipe (51) connected to the lower connecting pipe (50), an upper connecting pipe (52) connected to the vertical pipe (51), and the upper connecting pipe (52) connected to the upper part of the cleaning chamber (11); a filter cylinder (60) is also connected inside the circulation pipeline, the filter cylinder (60) is located at the lowest position of the circulation pipeline, a drain pipe (61) is connected to the filter cylinder (60), and a drain valve (62) is provided on the drain pipe (61); The one-way valve (40) includes a limiting ring (41) located on the upper surface of the sealing plug plate (30). The limiting ring (41) is provided with a plurality of sliding posts (42). The sliding posts (42) can slide through the sealing plug plate (30) and are provided with a sealing plate (43) at their ends. The sealing plug plate (30) is provided with a through hole (31). When the one-way mechanism is in the closed state, the upper surface of the sealing plate (43) is attached to the lower surface of the sealing plug plate (30) and covers the through hole (31).

2. The circulating structure for cleaning NdFeB waste according to claim 1, characterized in that, The circulation pipeline also includes a first three-way pipe (53), and the vertical pipe (51) is connected to the upper connecting pipe (52) through the first three-way pipe (53); the first three-way pipe (53) is also connected to an inlet pipe (55), the inlet pipe (55) is located at the highest position of the circulation pipeline, and the inlet pipe (55) is connected to an inlet valve (56).

3. The circulating structure for cleaning NdFeB waste according to claim 1, characterized in that, The bottom of the cleaning chamber (11) is shaped like an inverted frustum, and the lower connecting pipe (50) is inclined downward.

4. A circulating structure for cleaning NdFeB waste according to claim 1, characterized in that, The circulation pipeline also includes a second three-way pipe (54), the three ports of which are connected to the lower connecting pipe (50), the vertical pipe (51) and the filter cartridge (60) respectively.

5. A circulating structure for cleaning NdFeB waste according to claim 1, characterized in that, The filter cylinder (60) is provided with an inlet and an outlet. The inlet is connected to the lower connecting pipe (50), and the outlet is connected to the vertical pipe (51). A filter (63) is provided on the outlet.

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