High-purity silicon material drying device

Abstract

The utility model discloses a high-purity silicon material drying device, which relates to the technical field of high-purity silicon processing and comprises a shell, an air inlet pipe penetrates through one side wall of the shell, a first plate gate is fixedly mounted at the top end of the air inlet pipe, a fan is fixedly mounted in the middle of the air inlet pipe, an air outlet pipe penetrates through the other side wall of the shell, and a second plate gate is fixedly mounted at the top end of the air outlet pipe. And a second plate brake is fixedly installed at the top end of the air outlet pipe, a rotating motor is fixedly installed on the back face of the shell, a rotating wheel is clamped to the output end of the rotating motor, and four transverse rods are fixedly connected to the front face of the rotating wheel. By arranging a series of structures, heat consumption in a transmission mode can be reduced, the situation that a large amount of heat is generated by the device to maintain heat conveying is avoided, energy conservation and environment protection are better achieved, meanwhile, a small amount of waste heat in the device can be taken away in a convection mode, the internal cooling speed of the device is increased, and the service life of the device is prolonged. And the waiting time before the silicon material is taken out is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of high-purity silicon processing, in particular to a high-purity silicon material drying device. Background Art

[0002] In the process of preparing high-purity silicon materials, the cooled and crystallized silicon materials after filtration and washing need to be dried to obtain high-purity silicon monomer raw materials. When drying the high-purity silicon materials, it is necessary to carry out the process in a vacuum environment, so a special drying device is usually used to dry them.

[0003] However, when drying high-purity silicon materials, the existing drying devices usually transfer heat sources to the silicon materials resting on the trays through stacked trays and heat-conducting media. This method makes the heat transfer path longer. Since heat is easily consumed during transmission, a larger amount of heat needs to be generated to achieve heat transfer to the trays, resulting in the device being more energy-consuming when in use. In addition, after the existing drying devices complete the drying of the silicon materials, a small amount of residual heat accumulates inside, which slows down the cooling speed inside the device and causes a longer waiting time before the silicon materials are taken out. Utility Model Content

[0004] The purpose of the utility model is to provide a high-purity silicon material drying device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-purity silicon material drying device, comprising a shell, one side wall of the shell is penetrated by an air inlet pipe, a first plate gate is fixedly installed at the top of the air inlet pipe, a fan is fixedly installed in the middle of the air inlet pipe, an air outlet pipe is penetrated by the other side wall of the shell, a second plate gate is fixedly installed at the top of the air outlet pipe, a rotating motor is fixedly installed on the back of the shell, a rotating wheel is engaged with the output end of the rotating motor, four cross bars are fixedly connected to the front of the rotating wheel, the outer wall of the cross bar is movably sleeved with a hollow cylinder, a wire mesh plate is fixedly connected to the bottom of the inner side of the hollow cylinder, silicon material is placed on the top of the wire mesh plate, the interior of the bottom end of the hollow cylinder is filled with a heat-conducting medium, and a door panel is installed on the front of the shell.

[0006] Preferably, the rotating wheel is located inside the outer shell, and the rotating wheel is movably connected to the outer shell via a rotating motor.

[0007] Preferably, a slideway is provided on the back side of the door panel, and a roller is movably sleeved on one end of the cross bar, and the roller is movably connected to the slideway through the cross bar.

[0008] Preferably, a heater is fixedly mounted on the bottom of the inner side of the shell, and the hollow cylinder is movably connected to the heater via a rotating wheel.

[0009] Preferably, the front surface of the hollow cylinder is movably threadedly connected with a side cover, and the side cover is movably connected to the wire mesh plate.

[0010] Preferably, a vacuum tube passes through one side of the top of the shell, and a pressure relief valve is fixedly installed on the other side of the top of the shell.

[0011] Preferably, both side walls of the hollow cylinder are provided with a plurality of mesh holes, and the hollow cylinder is movably connected to the rotating wheel via a cross bar.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. This high-purity silicon material drying device uses a rotating wheel, a cross bar, a hollow cylinder, a wire mesh plate and heat-conducting oil to enable the silicon material to move through the rotating wheel and the hollow cylinder to the heat source at the bottom of the inner side of the device to absorb heat, thereby avoiding the heat from being transported to the tray through the heat-conducting medium and the pipeline, reducing the heat consumption in the form of transmission, thereby avoiding the device from generating a large amount of heat to maintain heat transportation, and being more energy-saving and environmentally friendly.

[0014] 2. The high-purity silicon material drying device, through the air inlet pipe, the fan, the first plate gate, the second plate gate and the air outlet pipe, allows the two side walls of the drying device to be opened for cooling inside the device, and allows the air with a lower outside temperature to enter and then pass through the device to form convection, taking away a small amount of residual heat in the device, thereby accelerating the cooling speed inside the device and shortening the waiting time before the silicon material is taken out. 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 structure of the air inlet pipe and the air outlet pipe of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the hollow tube and the wire mesh plate of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the rotating wheel and the crossbar of the utility model.

[0019] In the figure: 1. outer shell; 2. air inlet pipe; 3. first plate gate; 4. pressure relief valve; 5. vacuum tube; 6. second plate gate; 7. door panel; 8. fan; 9. rotor; 10. cross bar; 11. hollow cylinder; 12. mesh; 13. wire mesh plate; 14. heat transfer medium; 15. silicon material; 16. heater; 17. air outlet pipe; 18. rotating motor; 19. roller; 20. slideway; 21. side cover. DETAILED DESCRIPTION

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

[0021] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" 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 it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] like Figures 1 to 4 As shown, the high-purity silicon material drying device of this embodiment includes a shell 1, an air inlet pipe 2 is penetrated through one side wall of the shell 1, a first plate gate 3 is fixedly installed on the top of the air inlet pipe 2, a fan 8 is fixedly installed in the middle of the air inlet pipe 2, an air outlet pipe 17 is penetrated through the other side wall of the shell 1, a second plate gate 6 is fixedly installed on the top of the air outlet pipe 17, a rotating motor 18 is fixedly installed on the back of the shell 1, a rotating wheel 9 is engaged with the output end of the rotating motor 18, four cross bars 10 are fixedly connected to the front of the rotating wheel 9, a hollow cylinder 11 is movably sleeved on the outer wall of the cross bar 10, a wire mesh plate 13 is fixedly connected to the bottom of the inner side of the hollow cylinder 11, a silicon material 15 is placed on the top of the wire mesh plate 13, a heat-conducting medium 14 is filled in the bottom of the hollow cylinder 11, and a door panel 7 is installed on the front of the shell 1.

[0024] Specifically, a cavity is provided inside the shell 1 to provide sufficient space for the rotation of the runner 9 and the hollow cylinder 11. The air inlet pipe 2 and the air outlet pipe 17 are located on the same horizontal line, so that when the first plate gate 3 and the second plate gate 6 on the air inlet pipe 2 and the air outlet pipe 17 are opened at the same time, convection can be formed inside the shell 1 to take away a small amount of residual heat in the device, thereby accelerating the cooling speed of the silicon material 15 in the device. The function of the first plate gate 3 and the second plate gate 6 is to keep the air inlet pipe 2 and the air outlet pipe 17 closed when the shell 1 is evacuated, thereby achieving the sealing of the shell 1. The rotating motor 18 can drive the runner 9 to rotate after being energized, so that the runner 9 drives the cross bar 10 and the hollow cylinder 11 on the cross bar 10 to rotate inside the shell 1, so that the bottom end of the hollow cylinder 11 can The silicon material 15 slides over the top of the heater 16 in sequence, and the heat transfer method is replaced by the movement of the silicon material 15, thereby reducing the heat consumption in the transmission process, reducing the heat generation volume of the device, and being more energy-saving and environmentally friendly. The hollow cylinder 11 can hold the silicon material 15, so that the silicon material 15 can be moved and dried in the shell 1. The wire mesh plate 13 can suspend the silicon material 15 inside the hollow cylinder 11, so that the water droplets condensed on the inner wall of the hollow cylinder 11 are not easy to contact the dried silicon material 15 again, thereby reducing the probability of the silicon material 15 becoming damp again. The heat-conducting medium 14 can quickly absorb the heat source when the hollow cylinder 11 moves to the top of the heater 16, thereby facilitating the conduction of heat on the hollow cylinder 11. The door panel 7 allows the front of the shell 1 to be opened, which is convenient for users to take and put the silicon material 15.

[0025] Furthermore, the rotating wheel 9 is located inside the outer shell 1, and the rotating wheel 9 is movably connected to the outer shell 1 through a rotating motor 18. After being driven by the rotating motor 18, the rotating wheel 9 can drive the cross bar 10 and the hollow cylinder 11 to rotate, so that the bottom end of the hollow cylinder 11 slides over the top of the heater 16 in sequence, so that the silicon material 15 can circulate toward the heat source to avoid the transmission of heat.

[0026] Furthermore, a slide 20 is provided on the back side of the door panel 7, and a roller 19 is movably sleeved on one end of the cross bar 10. The roller 19 is movably connected to the slide 20 through the cross bar 10. The slide 20 functions to limit and support the roller 19, so that both ends of the cross bar 10 can maintain better stability when rotating, thereby facilitating the stability of the hollow tube 11.

[0027] Furthermore, a heater 16 is fixedly installed at the bottom of the inner side of the outer shell 1, and the hollow cylinder 11 is movably connected to the heater 16 through a rotating wheel 9. The heater 16 is an electric heater 16, and the opening for outputting heat faces upward, so that when the hollow cylinder 11 slides over the top of the heater 16, it can be fully in contact with the heat, thereby facilitating the silicon material 15 in the hollow cylinder 11 to absorb heat.

[0028] Furthermore, the front of the hollow cylinder 11 is movably threadedly connected to a side cover 21, which is movably connected to the wire mesh plate 13. The side cover 21 can open the front of the hollow cylinder 11, thereby facilitating the placement of the silicon material 15 into the interior of the hollow cylinder 11 and taking it out from the interior of the hollow cylinder 11.

[0029] Furthermore, a vacuum tube 5 runs through one side of the top of the shell 1, and a pressure relief valve 4 is fixedly installed on the other side of the top of the shell 1. The end of the vacuum tube 5 is connected to a vacuum pump, and a pressure gauge is also installed on the tube wall to facilitate vacuuming the inside of the shell 1. The pressure relief valve 4 can restore the vacuum state inside the shell 1 to a normal pressure state after opening.

[0030] Furthermore, a plurality of mesh holes 12 are provided on both side walls of the hollow cylinder 11. The hollow cylinder 11 is movably connected to the wheel 9 through the cross bar 10. The mesh holes 12 allow the water mist generated by the evaporation of the silicon material 15 inside the hollow cylinder 11 to be dispersed from the hollow cylinder 11, and at the same time facilitate the airflow blown in by the air inlet pipe 2 to smoothly enter the hollow cylinder 11 and then be blown out from the other side of the hollow cylinder 11, thereby facilitating the cooling speed of the silicon material 15 in the hollow cylinder 11.

[0031] The method of using the present embodiment is as follows: when using the drying device for high-purity silicon material 15, the drying device can be connected to an external power supply first, and then the door panel 7 is opened to expose the hollow cylinder 11, and then the side cover 21 on the front of the hollow cylinder 11 is opened, and the silicon material 15 to be dried is placed on the wire mesh plate 13 at the bottom of the hollow cylinder 11, so that the silicon material 15 is placed in the air inside the hollow cylinder 11, and then the door panel 7 is closed while keeping the first gate plate and the second gate plate closed, and then the interior of the shell 1 is evacuated through the vacuum tube 5, and then the rotating motor 18 and the heater 16 are started, at which time the rotating motor 18 will drive the rotating wheel 9 to rotate, and drive the cross bar 10 on the rotating wheel 9 to rotate, so that the hollow cylinder 11 rotates slightly along the rotation of the cross bar 10, and when the hollow cylinder 11 rotates, the heat-conducting medium 14 at the bottom thereof can be kept in a downward position until the hollow cylinder 11 is When the bottom end of the hollow cylinder 11 slides over the top of the heater 16, the heat emitted from the top of the heater 16 will contact the bottom of the hollow cylinder 11, so that the heat-conducting medium 14 on the inner side of the bottom of the hollow cylinder 11 absorbs the heat, and then conducts the heat to the inside of the hollow cylinder 11, so that the temperature of the silicon material 15 inside the hollow cylinder 11 increases, and at the same time, the water vapor evaporated during the drying of the silicon material 15 will be discharged from the hollow cylinder 11 through the mesh holes 12 on the two side walls of the hollow cylinder 11, and then the wheel 9 will continue to rotate in the shell 1, driving the hollow cylinder 11 to slide over the top of the heater 16 in sequence. After the drying of the silicon material 15 is completed, the first plate gate 3 and the second plate gate 6 can be opened, and the fan 8 can be started at the same time, so that the external airflow is blown into the shell 1 from the air inlet pipe 2, and then blown out from the air outlet pipe 17, so that a small amount of residual heat in the device is quickly taken away by convection, so that the silicon material 15 in the device can be quickly cooled.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A high-purity silicon material drying device, comprising a housing (1), characterized in that: An air inlet pipe (2) is passed through one side wall of the shell (1), a first plate gate (3) is fixedly installed at the top of the air inlet pipe (2), a fan (8) is fixedly installed in the middle of the air inlet pipe (2), an air outlet pipe (17) is passed through the other side wall of the shell (1), a second plate gate (6) is fixedly installed at the top of the air outlet pipe (17), a rotating motor (18) is fixedly installed on the back of the shell (1), a rotating wheel (9) is engaged with the output end of the rotating motor (18), four cross bars (10) are fixedly connected to the front of the rotating wheel (9), the outer wall of the cross bar (10) is movably sleeved with a hollow cylinder (11), a wire mesh plate (13) is fixedly connected to the bottom of the inner side of the hollow cylinder (11), a silicon material (15) is placed on the top of the wire mesh plate (13), the interior of the bottom end of the hollow cylinder (11) is filled with a heat-conducting medium (14), and a door panel (7) is installed on the front of the shell (1).

2. A high-purity silicon material drying device according to claim 1, characterized in that: The rotating wheel (9) is located inside the housing (1), and the rotating wheel (9) is movably connected to the housing (1) via a rotating motor (18).

3. A high-purity silicon material drying device according to claim 1, characterized in that: A slideway (20) is provided on the back of the door panel (7), and a roller (19) is movably sleeved on one end of the cross bar (10), and the roller (19) is movably connected to the slideway (20) through the cross bar (10).

4. The high-purity silicon material drying device according to claim 1, characterized in that: A heater (16) is fixedly mounted on the bottom of the inner side of the shell (1), and the hollow cylinder (11) is movably connected to the heater (16) via a rotating wheel (9).

5. The high-purity silicon material drying device according to claim 1, characterized in that: The front side of the hollow cylinder (11) is movably connected to a side cover (21) via a threaded connection, and the side cover (21) is movably connected to the wire mesh plate (13).

6. A high-purity silicon material drying device according to claim 1, characterized in that: A vacuum tube (5) passes through one side of the top end of the shell (1), and a pressure relief valve (4) is fixedly installed on the other side of the top end of the shell (1).

7. The high-purity silicon material drying device according to claim 1, characterized in that: A plurality of mesh holes (12) are provided on both side walls of the hollow cylinder (11), and the hollow cylinder (11) is movably connected to the rotating wheel (9) via a cross bar (10).

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