Granular silicon multi-stage filtering device

Abstract

The invention discloses a granular silicon multi-stage filtering device which comprises a main box body, the main box body is provided with two first side plates, two second side plates, an upper cover plate, a lower box body, an air extracting pump, an upper separating net, a lower separating net, a motor and paddles, the two first side plates are oppositely arranged, the two second side plates are oppositely arranged, the first side plates and the second side plates are perpendicular to each other, and the upper cover plate and the lower box body are arranged in parallel. The two first side plates and the two second side plates form a vertically-through box body structure, the upper partition net is arranged on the upper portion of the box body structure, the lower partition net is arranged on the lower portion of the box body structure, the upper cover plate is arranged above the upper partition net and connected with the box body structure, and the lower box body is arranged below the lower partition net and connected with the box body structure. The air extracting pump is arranged on the upper cover plate and communicated with the box body structure through a guide pipe, the blades and the motor are arranged in the lower box body, a rotating shaft of the motor and a rotating shaft of the blades are connected through a coupler, and the blowing direction of the blades points to the lower partition net. Therefore, the metal powder impurities in the granular silicon can be efficiently removed.

Description

Technical Field

[0001] The invention relates to the field of mechanical engineering, and in particular to a granular silicon multi-stage filtering device. Background Art

[0002] A large amount of silicon raw materials are needed in the semiconductor and solar energy fields, and the purity of the silicon raw materials directly determines the performance of semiconductor or solar energy products. Metal powder impurities will inevitably be mixed into the silicon raw materials during the production process. Therefore, research on how to remove metal powder impurities in silicon raw materials is of practical significance. Summary of the invention

[0003] The present invention aims to solve one of the technical problems in the above-mentioned technology at least to some extent.

[0004] To this end, an object of the present invention is to provide a multi-stage filtration device for granular silicon, which can efficiently remove metal powder impurities in granular silicon.

[0005] To achieve the above-mentioned object, the first embodiment of the present invention proposes a multi-stage granular silicon filtering device, comprising: a main box, wherein the main box is provided with: two side panels 1, two side panels 2, an upper cover plate, a lower box, an air pump, an upper partition net, a lower partition net, a motor and a paddle, wherein:

[0006] The two side panels 1 are arranged opposite to each other, the two side panels 2 are arranged opposite to each other, the side panels 1 and the side panels 2 are arranged perpendicular to each other, and the two side panels 1 and the two side panels 2 form a box structure that is connected up and down;

[0007] The upper partition net is arranged at the upper part of the box structure, the lower partition net is arranged at the lower part of the box structure, the upper cover plate is arranged above the upper partition net and connected to the box structure, and the lower box is arranged below the lower partition net and connected to the box structure;

[0008] The air pump is arranged on the upper cover plate and communicates with the box structure through a conduit;

[0009] The paddle and the motor are respectively arranged inside the lower box, the rotating shaft of the motor and the rotating shaft of the paddle are connected through a coupling, and the blowing direction of the paddle points to the lower partition net;

[0010] The multi-stage filtration device for granular silicon disclosed in the present invention can efficiently remove metal powder impurities in granular silicon.

[0011] In addition, the granular silicon multi-stage filtration device disclosed above according to the present invention may also have the following additional technical features:

[0012] In one embodiment of the present invention, it further comprises: a storage tank 1, a storage tank 2, a water pump 1 and a water pump 2, wherein:

[0013] The storage barrel 1, the water pump 1 and the box structure are connected in sequence through a conduit, and the storage barrel 2, the water pump 2 and the box structure are connected in sequence through a conduit.

[0014] In one embodiment of the present invention, it further comprises: two electric folding plates, wherein:

[0015] The two electric folding plates are respectively arranged in the box structure and above the lower partition net, and the two electric folding plates are respectively arranged on the two side panels.

[0016] In one embodiment of the present invention, it further comprises: two electrode plates, wherein:

[0017] The two electrode plates are respectively arranged in the box structure, and the two electrode plates are respectively arranged on the two side plates.

[0018] In one embodiment of the present invention, it also includes: four ball splines, two mounting frames, two roller brushes and two fans, wherein:

[0019] The two ball splines, the mounting frame, the roller brush and the fan constitute a cleaning structure, one end of the ball spline is arranged on the lower partition net, the mounting frame is arranged on the ball spline, both ends of the roller brush are connected to the mounting frame shaft, the roller brush is arranged on the surface of the electrode plate, and the fan is arranged below the roller brush and connected to the mounting frame.

[0020] In one embodiment of the present invention, it further comprises: a cage, wherein the cage is arranged in the box structure.

[0021] In one embodiment of the present invention, it further includes: a base, which is arranged at the lower part of the lower box body.

[0022] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0024] Figure 1 The structure of a multi-stage filtering device for granular silicon according to an embodiment of the present invention is shown in FIG. Figure 1 ;

[0025] Figure 2The structure of a multi-stage filtering device for granular silicon according to an embodiment of the present invention is shown in FIG. Figure 2 ;

[0026] Figure 3 The structure of a multi-stage filtering device for granular silicon according to an embodiment of the present invention is shown in FIG. Figure 3 ;

[0027] As shown in the figure:

[0028] 100-main box;

[0029] 101-side panel one;

[0030] 102-side panel 2;

[0031] 103-upper cover;

[0032] 104-lower box;

[0033] 105-air pump;

[0034] 106-upper separator;

[0035] 107-lower partition net;

[0036] 108-electric motor;

[0037] 109-paddle blade;

[0038] 1010-Electric folding plate;

[0039] 1011-electrode plate;

[0040] 1012-ball spline;

[0041] 1013-mounting frame;

[0042] 1014-Roller brush;

[0043] 1015- fan;

[0044] 1016- base;

[0045] 200- Storage barrel 1, 300- Storage barrel 2, 400- Water pump 1, 500- Water pump 2, 600- Cage. DETAILED DESCRIPTION

[0046] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0047] The multi-stage filtering device for granular silicon according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0048] Embodiment 1

[0049] like Figure 1 As shown, the granular silicon multi-stage filtering device comprises: a main box 100, the main box 100 is provided with: two side panels 101, two side panels 102, an upper cover 103, a lower box 104, an air pump 105, an upper separator 106, a lower separator 107, a motor 108 and a paddle 109, wherein:

[0050] The two side panels 101 are arranged opposite to each other, the two side panels 102 are arranged opposite to each other, the side panels 101 and the side panels 102 are arranged perpendicular to each other, and the two side panels 101 and the two side panels 102 form a box structure that is connected up and down;

[0051] The upper partition net 106 is arranged at the upper part of the box structure, the lower partition net 107 is arranged at the lower part of the box structure, the upper cover plate 103 is arranged above the upper partition net 106 and connected to the box structure, and the lower box 104 is arranged below the lower partition net 107 and connected to the box structure;

[0052] The air pump 105 is arranged on the upper cover plate 103 and is connected to the box structure through a conduit;

[0053] The paddle 109 and the motor 108 are respectively arranged inside the lower box 104 , and the rotating shaft of the motor 108 is connected to the rotating shaft of the paddle 109 via a coupling, and the blowing direction of the paddle 109 points to the lower partition net 107 .

[0054] In the embodiment of the present invention, a box structure composed of two side plates 101 and two side plates 102 is used, and granular silicon is placed using an upper partition 106 and a lower partition 107. The motor 108 under the lower partition 107 drives the paddle 109 to blow up the granular silicon, and the vacuum pump 105 is used to extract the metal powder impurities blown up by the paddle 109.

[0055] Specifically, firstly, the relevant staff sets the granular silicon multi-stage filtration device at a suitable location, for example, on a flat and stable workbench;

[0056] Next, the relevant staff opens the upper cover plate 103 and the upper separator 106, and pours the granular silicon onto the lower separator 107;

[0057] Then, the relevant staff simply arranges the granular silicon on the lower separator 107 to make it flat and closes the upper cover plate 103 and the upper separator 106;

[0058] Finally, the relevant staff connects the power supply to the vacuum pump 105 and the motor 108 and starts them. At this time, they can wait for the metal powder impurities in the granular silicon raw material to be removed.

[0059] Embodiment 2

[0060] like Figure 2 As shown, the granular silicon multi-stage filtering device comprises: a main box 100, the main box 100 is provided with: two side panels 101, two side panels 102, an upper cover 103, a lower box 104, an air pump 105, an upper separator 106, a lower separator 107, a motor 108 and a paddle 109, wherein:

[0061] The two side panels 101 are arranged opposite to each other, the two side panels 102 are arranged opposite to each other, the side panels 101 and the side panels 102 are arranged perpendicular to each other, and the two side panels 101 and the two side panels 102 form a box structure that is connected up and down;

[0062] The upper partition net 106 is arranged at the upper part of the box structure, the lower partition net 107 is arranged at the lower part of the box structure, the upper cover plate 103 is arranged above the upper partition net 106 and connected to the box structure, and the lower box 104 is arranged below the lower partition net 107 and connected to the box structure;

[0063] The air pump 105 is arranged on the upper cover plate 103 and is connected to the box structure through a conduit;

[0064] The paddle 109 and the motor 108 are respectively arranged inside the lower box 104 , and the rotating shaft of the motor 108 is connected to the rotating shaft of the paddle 109 via a coupling, and the blowing direction of the paddle 109 points to the lower partition net 107 .

[0065] In the embodiment of the present invention, in order to prevent the presence of larger metal particle impurities in the granular silicon, which would cause the blade 109 to be unable to blow it up, the relevant staff may acid-wash the granular silicon, and dissolve the larger metal particle impurities during the acid-washing process;

[0066] Specifically, the granular silicon multi-stage filtering device further includes: a storage tank 1 200, a storage tank 2 300, a water pump 1 400 and a water pump 2 500, wherein:

[0067] The storage tank 1 200, the water pump 1 400 and the box structure are sequentially connected through the conduit, and the storage tank 2 300, the water pump 2 500 and the box structure are sequentially connected through the conduit.

[0068] The storage barrel 1 200 is used to store pickling liquid, the water pump 1 400 is used to introduce the pickling liquid into the box structure formed by the two side plates 101 and the two side plates 102, the storage barrel 2 300 is used to store pickling waste liquid, and the water pump 2 500 is used to extract the pickling waste liquid from the box structure formed by the two side plates 101 and the two side plates 102;

[0069] It should be noted that the granular silicon multi-stage filtering device further includes: two electric folding plates 1010, wherein:

[0070] Two electric folding plates 1010 are respectively arranged in the box structure and above the lower partition 107, and the two electric folding plates 1010 are respectively arranged on the two side panels 101;

[0071] Two electric folding plates 1010 are provided to close the lower screen 106 , thereby preventing the pickling liquid from passing through the lower screen 106 and corroding the paddles 108 and the motor 109 .

[0072] Embodiment 3

[0073] like Figure 1 and Figure 3 As shown, the granular silicon multi-stage filtering device comprises: a main box 100, the main box 100 is provided with: two side panels 101, two side panels 102, an upper cover 103, a lower box 104, an air pump 105, an upper separator 106, a lower separator 107, a motor 108 and a paddle 109, wherein:

[0074] The two side panels 101 are arranged opposite to each other, the two side panels 102 are arranged opposite to each other, the side panels 101 and the side panels 102 are arranged perpendicular to each other, and the two side panels 101 and the two side panels 102 form a box structure that is connected up and down;

[0075] The upper partition net 106 is arranged at the upper part of the box structure, the lower partition net 107 is arranged at the lower part of the box structure, the upper cover plate 103 is arranged above the upper partition net 106 and connected to the box structure, and the lower box 104 is arranged below the lower partition net 107 and connected to the box structure;

[0076] The air pump 105 is arranged on the upper cover plate 103 and is connected to the box structure through a conduit;

[0077] The paddle 109 and the motor 108 are respectively arranged inside the lower box 104 , and the rotating shaft of the motor 108 is connected to the rotating shaft of the paddle 109 via a coupling, and the blowing direction of the paddle 109 points to the lower partition net 107 .

[0078] In the embodiment of the present invention, in order to better remove the metal powder impurities in the granular silicon, the relevant staff can process the granular silicon by electromagnetic adsorption technology;

[0079] Specifically, the granular silicon multi-stage filtering device further includes: two electrode plates 1011, wherein:

[0080] The two electrode plates 1011 are respectively arranged in the box structure, and the two electrode plates 1011 are respectively arranged on the two side plates 102 .

[0081] After the relevant staff turns on the power to the two electrode plates 1011, the two electrode plates 1011 are respectively charged positively and negatively. At this time, the two electrode plates 1011 can absorb the metal powder impurities in the granular silicon.

[0082] It should be noted that the granular silicon multi-stage filtering device further includes: four ball splines 1012, two mounting frames 1013, two roller brushes 1014 and two fans 1015, wherein:

[0083] Two ball splines 1012, a mounting frame 1013, a roller brush 1014 and a fan 1015 form a cleaning structure, one end of the ball spline 1012 is arranged on the lower partition 107, the mounting frame 1013 is arranged on the ball spline 1012, both ends of the roller brush 1014 are connected to the axis of the mounting frame 1013, the roller brush 1014 is arranged on the surface of the electrode plate 1011, and the fan 1015 is arranged below the roller brush 1014 and connected to the mounting frame 1013;

[0084] In order to facilitate the cleaning of metal powder impurities on the surface of the electrode plate 1011, relevant staff can clean the surface of the electrode plate 1011 with a roller brush 1014. During this process, the fan 1015 will continuously blow air, so that the metal powder impurities brushed off by the roller brush 1014 are lifted up, so that they can be better sucked away by the vacuum pump 105.

[0085] In addition, if Figure 3 As shown, the granular silicon multi-stage filtering device further includes: a cage 600, which is arranged in the box structure;

[0086] Relevant staff can place granular silicon in the cage 600 to facilitate the relevant staff to place and take out the granular silicon.

[0087] Moreover, Figure 1 and Figure 3 As shown, the granular silicon multi-stage filtering device further includes: a base 1016 , and the base 1016 is disposed at the lower part of the lower box body 104 .

[0088] In summary, the multi-stage filtration device for granular silicon disclosed in the present invention can efficiently remove metal powder impurities in granular silicon.

[0089] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0090] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0091] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0092] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0093] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0094] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A multi-stage filtration device for granular silicon, characterized in that: include: The main box (100) is provided with: two side panels (101), two side panels (102), an upper cover (103), a lower box (104), an air pump (105), an upper partition (106), a lower partition (107), a motor (108) and a paddle (109), wherein: The two side panels (101) are arranged opposite to each other, the two side panels (102) are arranged opposite to each other, the side panels (101) and the side panels (102) are arranged perpendicular to each other, and the two side panels (101) and the two side panels (102) form a box structure that is connected from top to bottom; The upper partition net (106) is arranged at the upper part of the box structure, the lower partition net (107) is arranged at the lower part of the box structure, the upper cover plate (103) is arranged above the upper partition net (106) and connected to the box structure, and the lower box (104) is arranged below the lower partition net (107) and connected to the box structure; The air extraction pump (105) is arranged on the upper cover plate (103) and is connected to the box structure through a conduit; The paddle (109) and the motor (108) are respectively arranged inside the lower box (104); the rotating shaft of the motor (108) and the rotating shaft of the paddle (109) are connected via a coupling; the blowing direction of the paddle (109) points to the lower partition net (107).

2. The multi-stage filtration device for granular silicon according to claim 1, characterized in that: Also includes: Storage tank 1 (200), storage tank 2 (300), water pump 1 (400) and water pump 2 (500), wherein: The storage barrel 1 (200), the water pump 1 (400) and the box structure are connected in sequence through a conduit, and the storage barrel 2 (300), the water pump 2 (500) and the box structure are connected in sequence through a conduit.

3. The multi-stage filtration device for granular silicon according to claim 2, characterized in that: Also includes: Two electric folding plates (1010), wherein: The two electric folding plates (1010) are respectively arranged in the box structure and above the lower partition net (107), and the two electric folding plates (1010) are respectively arranged on the two side panels (101).

4. The multi-stage filtration device for granular silicon according to claim 1, characterized in that: It also includes: two electrode plates (1011), wherein: The two electrode plates (1011) are respectively arranged in the box structure, and the two electrode plates (1011) are respectively arranged on the two side plates (102).

5. The multi-stage filtration device for granular silicon according to claim 4, characterized in that: Also includes: Four ball splines (1012), two mounting frames (1013), two roller brushes (1014) and two fans (1015), wherein: The two ball splines (1012), the mounting frame (1013), the roller brush (1014) and the fan (1015) form a cleaning structure, one end of the ball spline (1012) is arranged on the lower partition (107), the mounting frame (1013) is arranged on the ball spline (1012), both ends of the roller brush (1014) are connected to the axis of the mounting frame (1013), the roller brush (1014) is arranged on the surface of the electrode plate (1011), and the fan (1015) is arranged below the roller brush (1014) and connected to the mounting frame (1013).

6. The multi-stage filtration device for granular silicon according to claim 1, characterized in that: Also includes: A cage (600), wherein the cage (600) is arranged in the box structure.

7. The multi-stage filtration device for granular silicon according to claim 1, characterized in that: Also includes: A base (1016), wherein the base (1016) is arranged at the lower part of the lower box body (104).

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