Metal silicon sludge drying device

Abstract

The utility model discloses a metal silicon sludge drying device, which relates to the technical field of metal silicon sludge processing devices and comprises a vertical frame, a rotating drum is arranged at the top of the vertical frame, a gear ring is fixedly connected to the outer wall of the middle of the rotating drum, an outer gear is meshed with the outer wall of the gear ring, and a feeding hopper penetrates through the top end of one side of the vertical frame. A first sleeve is arranged on one side of the vertical frame, a heat source air pipe penetrates through one side wall of the first sleeve, a spark trapping net is clamped on the inner side of the first sleeve, and a dust collecting cylinder movably penetrates through the bottom end of the first sleeve in a threaded mode. By arranging a series of structures, the probability that sparks enter the drying device is reduced, and the probability that dried metal silicon powder in the device is ignited is reduced, so that the probability that silicon sludge recycled in the drying device cannot be reused is reduced, generated tail gas is prevented from being directly exhausted into air, and the service life of the silicon sludge is prolonged. Therefore, pollution to ambient air is reduced, and the device is more environment-friendly.

Description

Technical Field

[0001] The utility model relates to the technical field of metal silicon mud processing devices, in particular to a metal silicon mud drying device. Background Art

[0002] Metal silicon mud is usually produced by upstream chip factories and photovoltaic factories when cutting silicon wafers. These silicon muds will be mixed with the lubricant and processing liquid during cutting to form wet silicon mud with a water content of 30%-50%. When the wet silicon mud is recycled, a dryer is needed to reduce the moisture content of the wet silicon mud to less than 2%.

[0003] However, when the existing metallic silicon mud is dried in a machine, the heat source used by the drying device is usually the heat generated by the combustion of fuel, which is then transported to the drying device through a pipeline. Since sparks are generated when the fuel is not fully burned in the furnace, the sparks can easily enter the drying device through the transportation pipeline and ignite the dried metallic silicon powder in the device, resulting in the silicon mud recovered in the device being unable to be reused. In addition, the metallic silicon mud will produce a lot of exhaust gas with a pungent odor during drying. The traditional drying device does not perform preliminary treatment on the exhaust gas generated, but directly discharges it into the air through a pipeline, which is more likely to cause pollution to the surrounding air and is not environmentally friendly. Utility Model Content

[0004] The purpose of the present invention is to provide a metal silicon mud drying device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a metal silicon mud drying device, comprising a vertical frame, a rotating drum is provided at the top of the vertical frame, the outer wall of the middle part of the rotating drum is fixedly connected to a gear ring, the outer wall of the gear ring is meshed with an external gear, a feed hopper is passed through the top of one side of the vertical frame, a first sleeve is provided on one side of the vertical frame, a heat source air duct is passed through one side wall of the first sleeve, a spark catcher net is engaged with the inner side of the first sleeve, a dust collecting cylinder is passed through the movable thread at the bottom end of the first sleeve, a fan is provided at the top of the other side of the vertical frame, a second sleeve is provided at the top of the fan, a filter screen is engaged with the inner wall of the second sleeve, an exhaust duct is passed through one side wall of the second sleeve, a channel is opened inside the other side wall of the vertical frame, and a discharge pipe is passed through one side wall of the channel.

[0006] Preferably, a rotating motor is fixedly installed in the middle of the vertical frame, the output end of the rotating motor is engaged with the external gear, and the rotating drum is rotatably connected to the vertical frame through the external gear and the gear ring.

[0007] Preferably, the dust collecting cylinder is communicated with the interior of the first sleeve, and a connecting pipe passes through the other side wall of the first sleeve.

[0008] Preferably, the connecting pipe passes through a side wall of the vertical frame, and the first sleeve is fixedly connected to the vertical frame through the connecting pipe.

[0009] Preferably, a vertical cylinder passes through the top end of the other side of the vertical frame, and the fan is fixedly installed on the top end of the vertical cylinder.

[0010] Preferably, the interior of the vertical cylinder is communicated with the interior of the channel, and the channel is communicated with the interior of the discharge pipe.

[0011] Preferably, a spiral blade is fixedly connected to the inner wall of the rotating drum, one end of the rotating drum is communicated with the feed hopper and the interior of the connecting pipe through a vertical frame, and the other end of the rotating drum is communicated with the interior of the channel.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. This metal silicon mud drying device uses a dust collecting cylinder, a spark collecting net and a first sleeve so that sparks entering the pipeline along with the heat source can be captured by the spark collecting net, and the solid particles generated after the sparks are extinguished can be intercepted by the collecting net and fall into the dust collecting cylinder to be collected, thereby reducing the probability of sparks entering the interior of the drying device, reducing the probability of the dried metal silicon powder in the device being ignited, and thus reducing the probability of the silicon mud recovered in the drying device being unable to be reused.

[0014] 2. This metal silicon mud drying device uses the second sleeve, fan and filter screen to allow the exhaust gas generated when the metal silicon mud is dried in the device to be sucked into a dedicated pipeline for preliminary filtration treatment before being discharged into the air, avoiding directly discharging the generated exhaust gas into the air, thereby reducing the pollution to the surrounding air and being more environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the second sleeve and filter structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the spark capture net and dust collection tube of the present utility model;

[0018] Figure 4 This is a schematic structural diagram of the negative pressure fan and the first sleeve of the utility model.

[0019] In the figure: 1. Vertical frame; 2. Heat source air duct; 3. First sleeve; 4. Dust collecting cylinder; 5. Feed hopper; 6. Rotating cylinder; 7. Gear ring; 8. External gear; 9. Rotating motor; 10. Vertical cylinder; 11. Fan; 12. Second sleeve; 13. Discharge pipe; 14. Spark catcher net; 15. Connecting pipe; 16. Spiral blade; 17. Filter; 18. Exhaust pipe; 19. Passage. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc. should be understood in a broad sense. For example, "connected" can mean 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, or it can be internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0023] like Figures 1 to 4As shown in the figure, the metal silicon mud drying device of this embodiment includes a vertical frame 1. A rotating drum 6 is provided at the top of the vertical frame 1. An outer gear ring 7 is fixedly connected to the outer wall of the middle part of the rotating drum 6. An external gear 8 meshes with the outer wall of the gear ring 7. A feed hopper 5 penetrates through the top end of one side of the vertical frame 1. A first sleeve 3 is provided on one side of the vertical frame 1. A heat source air duct 2 penetrates through one side wall of the first sleeve 3. A spark arrestor net 14 is clamped inside the first sleeve 3. A dust collecting cylinder 4 is movably threaded through the bottom end of the first sleeve 3. A blower 11 is provided at the top of the other side of the vertical frame 1. A second sleeve 12 is sleeved on the top end of the blower 11. A filter screen 17 is clamped inside the inner wall of the second sleeve 12. An exhaust duct 18 penetrates through one side wall of the second sleeve 12. A channel 19 is opened inside the other side wall of the vertical frame 1. A discharge pipe 13 penetrates through one side wall of the channel 19.

[0024] Specifically, the vertical frame 1 is in an inverted "冂" shape, so that both ends of the rotating drum 6 can be supported during rotation, which is beneficial to the rotation of the rotating drum 6, enabling the metal silicon mud entering the rotating drum 6 to be dried as the rotating drum 6 rotates. Both ends of the rotating drum 6 are not closed. The external gear 8 can mesh with the gear ring 7, enabling the gear ring 7 to drive the rotating drum 6 to rotate. The bottom end of the feed hopper 5 is located inside one side of the vertical frame 1 and is connected to the inside of one end of the rotating drum 6, allowing the metal silicon mud to smoothly enter the inside of the rotating drum 6 through the feed hopper 5 for drying. The first sleeve 3 is a detachable structure, facilitating the replacement of the spark arrestor net 14. The function of the heat source air duct 2 is to introduce heat source into the connecting pipe 15, increasing the temperature inside the rotating drum 6 to achieve the purpose of drying the metal silicon mud inside the rotating drum 6. The top of the dust collecting cylinder 4 is not closed, enabling the solid particles after the sparks are extinguished to fall into the dust collecting cylinder 4 for collection, reducing the interference of sparks on the airflow passing through. The function of the blower 11 is to generate an upward suction airflow at the top of the channel 19, enabling the steam and tail gas generated during drying to enter the second sleeve 12, reducing the probability of water vapor being discharged from the discharge pipe 13, and enabling the discharge pipe 13 to discharge relatively dry metal silicon powder. The second sleeve 12 can be disassembled from the blower 11, facilitating the cleaning and replacement of the filter screen 17 inside the second sleeve 12. The discharge pipe 13 is arranged with the pipe orifice inclined downward, enabling the dried metal silicon powder entering the channel 19 to quickly discharge from the discharge port.

[0025] Furthermore, a rotating motor 9 is fixedly installed in the middle of the vertical frame 1. The output end of the rotating motor 9 is clamped and connected to the external gear 8. The rotating drum 6 is rotationally connected to the vertical frame 1 through the external gear 8 and the gear ring 7. After the rotating motor 9 is powered on, it can drive the external gear 8 to mesh with the gear ring 7 to rotate, thereby realizing the rotation of the rotating drum 6 on the vertical frame 1.

[0026] Furthermore, the dust collecting barrel 4 is connected to the interior of the first sleeve 3, and a connecting pipe 15 passes through the other side wall of the first sleeve 3. After the dust collecting barrel 4 is separated from the first sleeve 3, a circular hole will appear at the bottom end of the first sleeve 3, so that maintenance personnel can clean the spark capture net 14 in the first sleeve 3 through the circular hole.

[0027] Furthermore, the connecting pipe 15 passes through a side wall of the vertical frame 1, and the first sleeve 3 is fixedly connected to the vertical frame 1 through the connecting pipe 15, so that the hot air source that removes sparks through the first sleeve 3 can smoothly enter the connecting pipe 15, and then pass into the interior of the rotating drum 6 through the connecting pipe 15 to achieve heating and drying of the metal silicon mud inside the rotating drum 6.

[0028] Furthermore, a vertical tube 10 is passed through the top of the other side of the vertical frame 1, and the fan 11 is fixedly installed on the top of the vertical tube 10. The function of the vertical tube 10 is to support the fan 11 so that the fan 11 can maintain better stability during operation.

[0029] Furthermore, the interior of the vertical cylinder 10 is connected to the interior of the channel 19, and the channel 19 is connected to the interior of the discharge pipe 13. After the metallic silicon powder dried in the rotating drum 6 enters the channel 19, the water vapor and exhaust gas discharged at the same time as the metallic silicon powder will be sucked into the vertical cylinder 10, and the dried metallic silicon powder will slide out along the discharge pipe 13 on one side of the channel 19.

[0030] Furthermore, a spiral blade 16 is fixedly connected to the inner wall of the rotating drum 6. One end of the rotating drum 6 is communicated with the feed hopper 5 and the interior of the connecting pipe 15 through the vertical frame 1, and the other end of the rotating drum 6 is communicated with the interior of the channel 19. The function of the spiral blade 16 is to enable the metal silicon mud moving with the rotating drum 6 in the rotating drum 6 to be dried and transferred in an orderly manner from one end of the rotating drum 6 to the other end of the rotating drum 6, thereby completing the drying process of the metal silicon mud.

[0031] The method of using this embodiment is as follows: when using the metal silicon mud drying device, it is necessary to first connect the device to an external power supply, start the rotating motor, drive the external gear 8 to rotate, drive the gear ring 7 to rotate, and make the rotating drum 6 rotate on the top of the vertical frame 1, and then the heat source air duct 2 will pass the heat source into the first sleeve 3. When the heat source passes through the spark capture net 14 in the first sleeve 3 with the air flow, the sparks entrained by the heat source will be intercepted, and the solid particles generated after extinguishing will fall into the dust collecting barrel 4 and be collected, and the heat source will enter the connecting pipe 15, and then enter the inside of the rotating drum 6 to heat the rotating drum 6, and then the metal silicon mud will be poured into the feed hopper 5. At this time The metallic silicon mud will fall into one end of the rotating drum 6 along with the feed hopper 5, and then move along the spiral blades 16 on the inner wall of the rotating drum 6 as the rotating drum 6 rotates, so that the metallic silicon mud is fully in contact with the heat source while rotating, so that the metallic silicon mud is dried. At the same time, the water vapor and exhaust gas generated will enter the channel 19 from the other end of the rotating drum 6 along with the dried metallic silicon powder, and then be sucked into the vertical cylinder 10 from the top of the channel 19 by the powered fan 11, and then pass through the fan 11 into the second sleeve 12, and contact with the filter 17 in the second sleeve 12, so that the exhaust gas with pungent odor is preliminarily treated and finally discharged from the exhaust pipe 18.

[0032] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A metal silicon mud drying device, comprising a vertical frame (1), characterized in that: A rotating drum (6) is provided at the top of the vertical frame (1), a gear ring (7) is fixedly connected to the outer wall of the middle part of the rotating drum (6), an outer gear (8) is meshed on the outer wall of the gear ring (7), a feed hopper (5) is passed through the top of one side of the vertical frame (1), a first sleeve (3) is provided on one side of the vertical frame (1), a heat source air duct (2) is passed through one side wall of the first sleeve (3), a spark catcher net (14) is engaged on the inner side of the first sleeve (3), and the first sleeve (14) is provided on the inner side of the first sleeve (1). The bottom movable thread of the vertical frame (3) is penetrated by a dust collecting cylinder (4), the top of the other side of the vertical frame (1) is provided with a fan (11), the top end of the fan (11) is sleeved with a second sleeve (12), the inner wall of the second sleeve (12) is engaged with a filter screen (17), one side wall of the second sleeve (12) is penetrated by an exhaust pipe (18), the inside of the other side wall of the vertical frame (1) is provided with a channel (19), and one side wall of the channel (19) is penetrated by a discharge pipe (13).

2. A metal silicon mud drying device according to claim 1, characterized in that: A rotating motor (9) is fixedly mounted in the middle of the vertical frame (1), the output end of the rotating motor (9) is engaged with an external gear (8), and the rotating drum (6) is rotationally connected to the vertical frame (1) via the external gear (8) and the gear ring (7).

3. A metal silicon mud drying device according to claim 1, characterized in that: The dust collecting cylinder (4) is in communication with the interior of the first sleeve (3), and a connecting pipe (15) passes through the other side wall of the first sleeve (3).

4. A metal silicon mud drying device according to claim 3, characterized in that: The connecting pipe (15) passes through a side wall of the vertical frame (1), and the first sleeve (3) is snap-connected to the vertical frame (1) via the connecting pipe (15).

5. The metal silicon mud drying device according to claim 1, characterized in that: A vertical tube (10) penetrates the top end of the other side of the vertical frame (1), and the fan (11) is fixedly mounted on the top end of the vertical tube (10).

6. A metal silicon mud drying device according to claim 5, characterized in that: The interior of the vertical cylinder (10) is communicated with the interior of the channel (19), and the channel (19) is communicated with the interior of the discharge pipe (13).

7. A metal silicon mud drying device according to claim 3, characterized in that: The inner wall of the rotating drum (6) is fixedly connected with a spiral blade (16); one end of the rotating drum (6) is communicated with the inside of the feed hopper (5) and the connecting pipe (15) through a vertical frame (1); and the other end of the rotating drum (6) is communicated with the inside of the channel (19).

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