Efficient anti-agglomeration drying device for silica powder

Abstract

The utility model discloses an efficient anti-agglomeration silica powder drying device which comprises a horizontal drying cylinder, a stirring motor is fixed to the right end of the horizontal drying cylinder, and a stirring shaft is fixed to the output end of the stirring motor through a coupler. The device has the beneficial effects that the stirring motor is started to drive the stirring shaft to rotate, the stirring shaft is promoted to rotate through the plurality of stirring frames which are arranged on the stirring shaft in a surrounding manner through the connecting columns, and due to the fact that the plurality of through holes are formed in the surfaces of the stirring frames in a rectangular array, caking materials existing in the silicon micro-powder stirring stage are easily scattered; an electric roller is installed in a feeding hopper of a re-feeding channel, and along with rotation of the electric roller, due to the fact that a plurality of conical rolling ribs are arranged on the surface of the electric roller in a surrounding mode, when silicon micro-powder passes through a gap between the electric roller and the feeding hopper, the silicon micro-powder is crushed; and a plurality of conical rolling ribs of the electric roller can be used for carrying out rolling treatment on cakes existing in the silicon micro-powder, so that physical dispersion of the silicon micro-powder in the feeding stage and the drying stage is realized, and the anti-agglomeration effect is remarkable.

Description

Technical Field

[0001] This utility model relates to the field of silicon micropowder processing technology, specifically to a high-efficiency anti-agglomeration drying device for silicon micropowder. Background Technology

[0002] Silicon carbide, also known as corundum, is produced by high-temperature smelting of raw materials such as quartz sand, petroleum coke (or coal coke), and sawdust (salt is added when producing green silicon carbide) in an electric resistance furnace. Silicon carbide also exists in nature as a rare mineral, moissanite. Silicon carbide is also called silicon carbide stone. Among contemporary non-oxide high-tech refractory materials such as C, N, and B, silicon carbide is the most widely used and economical, and can be called diamond grit or refractory sand.

[0003] Currently available silicon carbide micro powder drying equipment often results in clumping of the silicon carbide micro powder during feeding and mixing due to incomplete mixing or the presence of lumps during the feeding stage, affecting the thoroughness of drying. Secondly, the limited installation location of the heating device restricts drying to localized heating, resulting in slow drying efficiency. Furthermore, during the drying process, a large amount of moisture accumulates inside the chamber, which is difficult to drain, further impacting the drying effect of the silicon carbide micro powder. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a high-efficiency anti-agglomeration drying device for silicon micropowder, which has the advantages of rapid drying and anti-agglomeration, thereby solving the problems mentioned in the background technology.

[0006] (II) Technical Solution

[0007] To achieve the aforementioned advantages of rapid drying and anti-agglomeration, the specific technical solution adopted by this utility model is as follows: A high-efficiency anti-agglomeration drying device for silicon micropowder includes a horizontal drying cylinder. A stirring motor is fixed to the right end of the horizontal drying cylinder, and a stirring shaft is fixed to the output end of the stirring motor through a coupling. Several stirring frames are installed around the surface of the stirring shaft, and several through holes are opened in a rectangular array on the surface of each stirring frame. A feeding channel is connected to the left end of the horizontal drying cylinder, and a feeding hopper is connected to the top surface of the feeding channel. An electric drum is rotatably installed inside the feeding hopper, and several rolling ribs are installed around the surface of the electric drum. A discharge nozzle is connected to the bottom surface of the horizontal drying cylinder, and a gate valve is installed on the surface of the discharge nozzle. A hot air pipe is provided on the upper side of the horizontal drying cylinder, and several branch pipes connected to the horizontal drying cylinder are provided on the surface of the hot air pipe.

[0008] Furthermore, a dehumidifying fan is fixed to the top surface of the horizontal drying cylinder, and the dehumidifying fan's dehumidification port is connected to a dehumidifying hood via a pipe. The dehumidifying hood is connected to the horizontal drying cylinder, and a filter screen is detachably installed inside the dehumidifying hood.

[0009] Furthermore, a feeding motor is fixed to the end face of the feeding channel, and an auger is fixedly connected to the output end of the feeding motor. The feeding channel is inclined about the horizontal drying cylinder.

[0010] Furthermore, each of the crushing ribs of the electric roller has a tapered cross-section, and the gap between the electric roller and the inner wall of the feed hopper forms a silicon micro powder feeding channel.

[0011] Furthermore, the stirring frame is a rectangular structure, and several connecting columns are welded between the stirring frame and the stirring shaft.

[0012] Furthermore, the bottom of the horizontal drying cylinder is welded with a base, and the base consists of two vertical plates and a horizontal plate welded to its bottom.

[0013] Furthermore, the feeding channel is a cylindrical structure, and the bottom surface of the feeding channel is provided with an inclined support connected to the horizontal drying cylinder.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides a high-efficiency anti-agglomeration drying device for silicon micropowder, which has the following beneficial effects:

[0016] (1) In this utility model, the stirring motor is started to drive the stirring shaft to rotate, which causes several stirring frames installed around the stirring shaft by connecting columns to rotate. Since the surface of the stirring frame has several through holes in a rectangular array, it is easy to break up the agglomerated material in the stirring stage of silicon micro powder. On this basis, an electric roller is installed in the feed hopper of the feeding channel. As the electric roller rotates, the several conical crushing ribs arranged around the surface of the electric roller can crush the agglomerated material in the silicon micro powder when the silicon micro powder passes through the gap between the electric roller and the feed hopper. This achieves physical dispersion of silicon micro powder in the feeding and drying stages, with significant anti-agglomeration effect, which is conducive to improving the drying efficiency and fullness of silicon micro powder.

[0017] (2) In this utility model, the hot air is diverted into the horizontal drying cylinder by several branch pipes on the surface of the hot air pipe. On the one hand, this increases the dispersion of hot air entering the horizontal drying cylinder, and on the other hand, it avoids the problem of incomplete drying of silicon micro powder caused by traditional fixed heating devices. On this basis, by setting a dehumidifying fan, a desiccant hood and a filter screen on the top surface of the horizontal drying cylinder, the dehumidifying fan causes the desiccant hood to continuously draw out the hot and humid air in the horizontal drying cylinder. Then, the filter screen built into the desiccant hood prevents the silicon micro powder from being drawn out of the horizontal drying cylinder by the desiccant hood, thus avoiding the situation where a large amount of moisture accumulates inside the horizontal drying cylinder and is not easy to be discharged, which affects the drying effect of silicon carbide micro powder. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of a high-efficiency anti-agglomeration drying device for silicon micropowder according to an embodiment of the present utility model;

[0020] Figure 2 This is a schematic diagram of the structure of a horizontal drying drum;

[0021] Figure 3 This is a cross-sectional view of the material feeding channel;

[0022] Figure 4 This is a schematic diagram of the stirring shaft.

[0023] In the picture:

[0024] 1. Horizontal drying drum; 2. Feeding channel; 3. Feeding motor; 4. Screw conveyor; 5. Feed hopper; 6. Agitator motor; 7. Agitator shaft; 8. Agitator frame; 9. Hot air duct; 10. Dehumidifier; 11. Exhaust hood; 12. Discharge nozzle; 13. Gate valve; 14. Filter screen; 15. Branch pipe; 16. Electric roller; 17. Rolling ribs; 18. Connecting column. Detailed Implementation

[0025] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0026] According to an embodiment of the present invention, a high-efficiency anti-agglomeration drying device for silicon micropowder is provided.

[0027] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figure 1-4 As shown, a high-efficiency anti-agglomeration drying device for silicon micropowder according to an embodiment of the present invention includes a horizontal drying cylinder 1. A stirring motor 6 is fixed to the right end of the horizontal drying cylinder 1, and a stirring shaft 7 is fixed to the output end of the stirring motor 6 via a coupling. A plurality of stirring frames 8 are mounted around the surface of the stirring shaft 7, and each stirring frame 8 has a plurality of through holes arranged in a rectangular array on its surface. A feeding channel 2 is connected to the left end of the horizontal drying cylinder 1, and a feeding hopper 5 is connected to the top surface of the feeding channel 2. An electric drum 16 is rotatably mounted inside the feeding hopper 5, and a plurality of rolling ribs 17 are mounted around the surface of the electric drum 16. The bottom surface of the drying cylinder 1 is connected to the discharge nozzle 12, and the surface of the discharge nozzle 12 is equipped with a gate valve 13. The upper side of the horizontal drying cylinder 1 is provided with a hot air pipe 9, and the surface of the hot air pipe 9 is provided with several branch pipes 15 connected to the horizontal drying cylinder 1. For the feeding motor 3, stirring motor 6, dehumidifying fan 10 and electric drum 16, the control method of this utility model is to control them by manually starting and stopping the switch. The wiring diagram of the power components and the power supply are common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and wiring arrangement will not be explained in detail.

[0028] In one embodiment, a dehumidifying fan 10 is fixed to the top surface of the horizontal drying cylinder 1, and the dehumidifying port of the dehumidifying fan 10 is connected to an exhaust hood 11 through a pipe. The exhaust hood 11 is connected to the horizontal drying cylinder 1, and a filter screen 14 is detachably installed inside the exhaust hood 11. This structure avoids the situation where a large amount of moisture accumulates inside the horizontal drying cylinder 1 and is difficult to discharge, thus affecting the drying effect of silicon carbide micro powder. The hot air pipe 9 with several branch pipes 15 increases the dispersion of hot air entering the horizontal drying cylinder 1 on the one hand, and avoids the problem of incomplete drying of silicon micro powder caused by traditional fixed heating devices on the other hand. The pore size of the filter screen 14 should be smaller than the particle size of the silicon micro powder.

[0029] In one embodiment, a feeding motor 3 is fixed to the end face of the feeding channel 2, and an auger 4 is fixedly connected to the output end of the feeding motor 3. The feeding channel 2 is inclined about the horizontal drying cylinder 1. With this structure, the silicon micro powder is easily fed continuously under the action of the auger 4, avoiding the accumulation of material caused by one feeding.

[0030] In one embodiment, each of the crushing ribs 17 of the electric roller 16 has a conical cross-section, and the gap between the electric roller 16 and the inner wall of the feed hopper 5 forms a silicon micro powder feeding channel. With this structure, the several conical crushing ribs 17 of the electric roller 16 can crush the lumps present in the silicon micro powder.

[0031] In one embodiment, the stirring frame 8 is a rectangular structure, and several connecting posts 18 are welded between the stirring frame 8 and the stirring shaft 7. This structure reduces the resistance to the rotation of the stirring frame 8 to a certain extent and facilitates a reliable connection between the stirring frame 8 and the stirring shaft 7.

[0032] In one embodiment, a base is welded to the bottom of the horizontal drying cylinder 1, and the base consists of two vertical plates and a horizontal plate welded to its bottom. This structure is beneficial for the reliable support of the horizontal drying cylinder 1.

[0033] In one embodiment, the feeding channel 2 is a cylindrical structure, and the bottom surface of the feeding channel 2 is provided with an inclined support connected to the horizontal drying cylinder 1. This structure increases the fit between the auger 4 and the feeding channel 2.

[0034] Working principle: First, hot air is diverted through several branch pipes 15 on the surface of the hot air duct 9 and then enters the horizontal drying cylinder 1. At the same time, the silicon micro powder to be dried is fed into the feed hopper 5, so that the silicon micro powder enters the horizontal drying cylinder 1 under the pushing action of the auger 4. At this time, the stirring motor 6 is started to drive the stirring shaft 7 to rotate, causing several stirring frames 8 mounted around the stirring shaft 7 via connecting columns 18 to rotate. Since the surface of the stirring frames 8 has several through holes in a rectangular array, it is easy to break up any clumps of material that may be present during the stirring of the silicon micro powder. In addition to the dispersion treatment, an electric roller 16 is installed in the feed hopper 5 of the refeeding channel 2. As the electric roller 16 rotates, the conical crushing ribs 17 arranged around the surface of the electric roller 16 can crush the agglomerates in the silicon powder when the silicon powder passes through the gap between the electric roller 16 and the feed hopper 5. This achieves physical dispersion of the silicon powder during the feeding and drying stages. When the silicon powder is completely dried, the gate valve 13 of the discharge nozzle 12 is opened to discharge the silicon powder.

[0035] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-efficiency anti-agglomeration drying device for silicon micropowder, comprising a horizontal drying cylinder (1), characterized in that, The horizontal drying cylinder (1) is fixed with a stirring motor (6) at the right end, and the output end of the stirring motor (6) is fixed with a stirring shaft (7) through a coupling. Several stirring frames (8) are installed around the surface of the stirring shaft (7), and several through holes are opened in a rectangular array on the surface of each stirring frame (8). The left end of the horizontal drying cylinder (1) is connected to a feeding channel (2), and the top surface of the feeding channel (2) is connected to a feeding hopper (5). An electric roller (16) is rotatably installed inside the feeding hopper (5), and several rolling ribs (17) are installed around the surface of the electric roller (16). The bottom surface of the horizontal drying cylinder (1) is connected to a discharge nozzle (12), and a gate valve (13) is installed on the surface of the discharge nozzle (12). A hot air pipe (9) is provided on the upper side of the horizontal drying cylinder (1), and several branch pipes (15) connected to the horizontal drying cylinder (1) are provided on the surface of the hot air pipe (9).

2. The high-efficiency anti-agglomeration drying device for silicon micropowder according to claim 1, characterized in that, The top surface of the horizontal drying drum (1) is fixed with a dehumidifying fan (10), and the dehumidifying fan (10) is connected to a dehumidifying hood (11) through a pipe. The dehumidifying hood (11) is connected to the horizontal drying drum (1), and a filter screen (14) is detachably installed inside the dehumidifying hood (11).

3. The high-efficiency anti-agglomeration drying device for silicon micropowder according to claim 1, characterized in that, The end face of the feeding channel (2) is fixed with a feeding motor (3), and the output end of the feeding motor (3) is fixedly connected with an auger (4). The feeding channel (2) is inclined about the horizontal drying cylinder (1).

4. The high-efficiency anti-agglomeration drying device for silicon micropowder according to claim 1, characterized in that, Each of the rolling ribs (17) of the electric roller (16) has a tapered cross section, and the gap between the electric roller (16) and the inner wall of the feed hopper (5) forms a silicon micro powder feeding channel.

5. The high-efficiency anti-agglomeration drying device for silicon micropowder according to claim 1, characterized in that, The stirring frame (8) is a rectangular structure, and several connecting columns (18) are welded between the stirring frame (8) and the stirring shaft (7).

6. The high-efficiency anti-agglomeration drying device for silicon micropowder according to claim 1, characterized in that, The bottom of the horizontal drying cylinder (1) is welded with a base, which consists of two vertical plates and a horizontal plate welded to its bottom.

7. The high-efficiency anti-agglomeration drying device for silicon micropowder according to claim 1, characterized in that, The feeding channel (2) is a cylindrical structure, and the bottom surface of the feeding channel (2) is provided with a diagonal brace connected to the horizontal drying cylinder (1).

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