阅读说明：本技术 一种大型工业硅快速定向凝固的装置 (Device for large industrial silicon rapid directional solidification ) 是由 文建华 毕红兴 杨贵明 徐福昌 王国卫 张忠益 徐加雄 康万福 梅志能 张藜 王 于 2019-11-19 设计创作，主要内容包括：本发明涉及工业硅处理技术领域,尤其为一种大型工业硅快速定向凝固的装置,包括石墨模具、处理装置、保温装置和吸附装置,所述石墨模具内侧设有处理装置,所述石墨模具顶端设有遮挡盖,且石墨模具与遮挡盖铰链连接,所述处理装置与遮挡盖固定连接,所述石墨模具外侧设有保温装置,且石墨模具与保温装置固定连接,所述保温装置右端面顶端固定连接有控制器,本发明中,通过设置的第一电阻丝和推板,这种设置配合第一电阻丝与第一导热箱的固定连接、推板与第一连接模及石墨模具的滑动连接和出料管与遮挡盖的连通,在对少量的硅熔体进行杂质清除时,可以使硅熔体内的杂质被处理的更彻底,大大提高了硅熔体的纯度,还方便了杂质的取出。(The invention relates to the technical field of industrial silicon treatment, in particular to a device for rapidly and directionally solidifying large industrial silicon, which comprises a graphite mold, a treatment device, a heat preservation device and an adsorption device, wherein the treatment device is arranged on the inner side of the graphite mold, a shielding cover is arranged at the top end of the graphite mold, the graphite mold is hinged with the shielding cover, the treatment device is fixedly connected with the shielding cover, the heat preservation device is arranged on the outer side of the graphite mold, the graphite mold is fixedly connected with the heat preservation device, and a controller is fixedly connected with the top end of the right end surface of the heat preservation device. Greatly improves the purity of the silicon melt and is convenient for taking out impurities.)

1. The utility model provides a device that large-scale industrial silicon solidifies fast in a direction, includes graphite jig (1), processing apparatus (2), heat preservation device (4) and adsorption equipment (7), its characterized in that: graphite jig (1) inboard is equipped with processing apparatus (2), graphite jig (1) top is equipped with shelters from lid (3), and graphite jig (1) with shelter from lid (3) hinged joint, processing apparatus (2) with shelter from lid (3) fixed connection, the graphite jig (1) outside is equipped with heat preservation device (4), and graphite jig (1) and heat preservation device (4) fixed connection, heat preservation device (4) right-hand member face top fixedly connected with controller (5), heat preservation device (4) left end face bottom fixedly connected with backup pad (6), heat preservation device (4) outside top is equipped with adsorption equipment (7), and adsorption equipment (7) and heat preservation device (4) fixed connection, adsorption equipment (7) and backup pad (6) sliding connection.

2. The apparatus for rapid directional solidification of large industrial silicon according to claim 1, wherein: the treatment device (2) comprises a first heat conduction box (201), a first resistance wire (202), an electric telescopic rod (203), a push plate (204), a first temperature sensor (205), an electric heating plate (206), a discharge pipe (207), a second resistance wire (208), a first connecting die (209), a third resistance wire (210), a second temperature sensor (211), a second heat conduction box (212) and a second connecting die (213), wherein the first heat conduction box (201) is arranged on the inner side of the graphite die (1), the graphite die (1) is fixedly connected with the first heat conduction box (201), the first resistance wire (202) is fixedly connected on the inner side of the first heat conduction box (201), the first resistance wire (202) is provided with 8 groups, the first resistance wire (202) is uniformly distributed on the inner side of the first heat conduction box (201), the first resistance wire (202) is arranged in a ring shape, the electric telescopic rod (203) is fixedly connected on the inner side of the bottom end face of the graphite die (1), electric telescopic handle (203) top terminal surface fixedly connected with push pedal (204), and push pedal (204) and graphite mould (1) sliding connection, first heat conduction case (201) top terminal surface inboard fixedly connected with temperature sensor (205), shelter from lid (3) top terminal surface inboard fixedly connected with electric heating board (206), it has discharging pipe (207) to shelter from lid (3) top intercommunication, graphite mould (1) bottom terminal surface inboard central point puts the intercommunication and has first connecting die (209), and push pedal (204) and first connecting die (209) sliding connection.

3. The apparatus for rapid directional solidification of large industrial silicon according to claim 2, wherein: the graphite mold is characterized in that a second connecting mold (213) is communicated with the center of the inner side of the bottom end face of the graphite mold (1), a push plate (204) is connected with the second connecting mold (213) in a sliding mode, a second heat conduction box (212) is fixedly connected to the inner side of the second connecting mold (213), a third resistance wire (210) is arranged on the inner side of the second heat conduction box (212), the third resistance wire (210) is fixedly connected with the second heat conduction box (212), the third resistance wire (210) comprises 8 groups, the third resistance wire (210) is uniformly distributed on the inner side of the second heat conduction box (212), and a second temperature sensor (211) is fixedly connected to the inner side of the top end face of the second heat conduction box (212).

4. The apparatus for rapid directional solidification of large industrial silicon according to claim 1, wherein: the heat preservation device (4) comprises a heat preservation box (401), a piston plate (402), springs (403), an extrusion plate (404), a pressure sensor (405), an air inlet pipe (406) and a control valve (407), wherein the heat preservation box (401) is fixedly connected to the outer side of the graphite mold (1), the heat preservation box (401) is fixedly connected with a support plate (6) and an adsorption device (7), the piston plate (402) is slidably connected to the inner side of the heat preservation box (401), the springs (403) are fixedly connected to the top end face of the piston plate (402), the air inlet pipe (406) is communicated with the bottom end of the right end face of the heat preservation box (401), and the control valve (407) is fixedly connected to the inner side.

5. The apparatus for rapid directional solidification of large industrial silicon according to claim 1, wherein: adsorption equipment (7) is including holding box (701), location lid (702), active carbon filter screen (703), conveyer pipe (704), air pump (705), switching pipe (706) and gas collection fill (707), backup pad (6) top terminal surface sliding connection has and holds box (701), it has location lid (702) to hold box (701) top hinged joint, it has conveyer pipe (704) to hold box (701) right-hand member face bottom intercommunication, and conveyer pipe (704) inboard is equipped with the check valve, the other end intercommunication of conveyer pipe (704) has air pump (705), air pump (705) top intercommunication has switching pipe (706), the other end intercommunication of switching pipe (706) has gas collection fill (707), and gas collection fill (707) and heat preservation device (4) fixed connection.

6. The apparatus for rapid directional solidification of large industrial silicon according to claim 2, wherein: the inner side of the discharge pipe (207) is provided with a second resistance wire (208), the second resistance wire (208) is fixedly connected with the discharge pipe (207), and the length of the second resistance wire (208) is the same as that of the discharge pipe (207).

7. The apparatus for rapid directional solidification of large industrial silicon according to claim 4, wherein: the other end of the spring (403) is fixedly connected with an extrusion plate (404), the extrusion plate (404) is in sliding connection with the heat preservation box (401), the top end face of the extrusion plate (404) is fixedly connected with a pressure sensor (405), and the pressure sensor (405) is in sliding connection with the heat preservation box (401).

8. The apparatus for rapid directional solidification of large industrial silicon according to claim 5, wherein: the inner side of the containing box (701) is provided with an active carbon filter screen (703), the active carbon filter screen (703) is in sliding connection with the containing box (701), and the active carbon filter screen (703) is in sliding connection with the positioning cover (702).

Technical Field

The invention relates to the technical field of industrial silicon treatment, in particular to a device for quickly and directionally solidifying large industrial silicon.

Background

Industrial silicon, also called metallic silicon, is a trade name appearing in the middle of the sixties of the present century, the metallic silicon is a product smelted by silica and carbonaceous reducing agent in a submerged arc furnace, the content of the main component silicon element is about ninety-eight percent, and the rest impurities are iron, aluminum, calcium and the like, and the metallic silicon is divided into a plurality of specifications due to different applications.

In the field of industrial silicon treatment, when part of the currently used industrial silicon rapid directional solidification devices are used, the internal impurities are not thoroughly treated, so that the purity of silicon is low, the impurities are not convenient to take out, and when the part of the currently used industrial silicon rapid directional solidification devices are used, harmful gas generated by pouring cannot be thoroughly treated, so that the health and the environment of workers are harmed, and when the part of the currently used industrial silicon rapid directional solidification devices are used, the heat preservation effect is not good, so that a large amount of electric energy is wasted, and the treatment of silicon melt is influenced, so that the device for large-scale industrial silicon rapid directional solidification is provided aiming at the problems.

Disclosure of Invention

The invention aims to provide a device for rapidly and directionally solidifying large industrial silicon, which solves the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a device that large-scale industry silicon solidified fast and directionally, includes graphite mould, processing apparatus, heat preservation device and adsorption equipment, the graphite mould inboard is equipped with processing apparatus, the graphite mould top is equipped with the shielding lid, and graphite mould and shielding lid hinged joint, processing apparatus and shielding lid fixed connection, the graphite mould outside is equipped with heat preservation device, and graphite mould and heat preservation device fixed connection, heat preservation device right-hand member face top fixed connection has the controller, heat preservation device left end face bottom fixed connection has the backup pad, heat preservation device outside top is equipped with adsorption equipment, and adsorption equipment and heat preservation device fixed connection, adsorption equipment and backup pad sliding connection.

Preferably, the processing device comprises a first heat conduction box, a first resistance wire, an electric telescopic rod, a push plate, a first temperature sensor, an electric heating plate, a discharge pipe, a second resistance wire, a first connecting die, a third resistance wire, a second temperature sensor, a second heat conduction box and a second connecting die, wherein the first heat conduction box is arranged on the inner side of the graphite die, the graphite die is fixedly connected with the first heat conduction box, the inner side of the first heat conduction box is fixedly connected with the first resistance wire, the first resistance wire comprises 8 groups, the first resistance wire is uniformly distributed on the inner side of the first heat conduction box, the first resistance wire is annularly arranged, the electric telescopic rod is fixedly connected on the inner side of the bottom end face of the graphite die, the push plate is fixedly connected on the top end face of the electric telescopic rod and is in sliding connection with the graphite die, the first temperature sensor is fixedly connected on the inner side of the top end face of the first heat conduction box, the electric heating plate is fixedly connected, the top end of the shielding cover is communicated with a discharge pipe, the center position of the inner side of the bottom end face of the graphite mold is communicated with a first connecting mold, and the push plate is in sliding connection with the first connecting mold.

Preferably, the central position of the inner side of the bottom end face of the graphite mold is communicated with a second connecting mold, the push plate is connected with the second connecting mold in a sliding mode, a second heat conduction box is fixedly connected to the inner side of the second connecting mold, a third resistance wire is arranged on the inner side of the second heat conduction box and fixedly connected with the second heat conduction box, the number of the third resistance wires is 8, the third resistance wires are uniformly distributed on the inner side of the second heat conduction box, and a second temperature sensor is fixedly connected to the inner side of the top end face of the second heat conduction box.

Preferably, the heat preservation device comprises a heat preservation box, a piston plate, a spring, an extrusion plate, a pressure sensor, an air inlet pipe and a control valve, the heat preservation box is fixedly connected to the outer side of the graphite mold and fixedly connected with the support plate and the adsorption device, the piston plate is connected to the inner side of the heat preservation box in a sliding mode, the spring is fixedly connected to the top end face of the piston plate, the air inlet pipe is communicated with the bottom end of the right end face of the heat preservation box, and the control valve is fixedly connected to the inner side.

Preferably, adsorption equipment is including holding box, location lid, active carbon filter screen, conveyer pipe, air pump, switching pipe and gas collection fill, backup pad top end face sliding connection has and holds the box, it has the location lid to hold box top hinged joint, it has the conveyer pipe to hold box right-hand member face bottom intercommunication, and the conveyer pipe inboard is equipped with the check valve, the other end intercommunication of conveyer pipe has the air pump, air pump top intercommunication has the switching pipe, the other end intercommunication of switching pipe has the gas collection fill, and gas collection fill and heat preservation device fixed connection.

Preferably, a second resistance wire is arranged on the inner side of the discharge pipe and fixedly connected with the discharge pipe, and the length of the second resistance wire is the same as that of the discharge pipe.

Preferably, the other end of the spring is fixedly connected with an extrusion plate, the extrusion plate is connected with the heat preservation box in a sliding mode, the top end face of the extrusion plate is fixedly connected with a pressure sensor, and the pressure sensor is connected with the heat preservation box in a sliding mode.

Preferably, hold the box inboard and be equipped with the active carbon filter screen, and the active carbon filter screen with hold box sliding connection, active carbon filter screen and location lid sliding connection.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, through the arrangement of the first resistance wire and the push plate, the arrangement is matched with the fixed connection of the first resistance wire and the first heat conduction box, the sliding connection of the push plate and the first connecting die as well as the graphite die, and the communication of the discharge pipe and the shielding cover, when impurities in a small amount of silicon melt are removed, the impurities in the silicon melt can be treated more thoroughly, the purity of the silicon melt is greatly improved, and the impurities are convenient to take out;

2. according to the invention, through the arrangement of the first resistance wire, the third resistance wire and the push plate, the arrangement is matched with the fixed connection of the first resistance wire and the first heat conduction box, the fixed connection of the third resistance wire and the second heat conduction box, the sliding connection of the push plate, the second connecting die and the graphite die, and the communication of the discharge pipe and the shielding cover, when a large amount of silicon melt is subjected to impurity removal, the impurities in the silicon melt can be treated more thoroughly, the purity of the silicon melt is greatly improved, and the impurities can be conveniently taken out;

3. according to the invention, through the arranged heat preservation box, the arrangement is matched with the communication between the heat preservation box and the air inlet pipe, the elasticity of the spring to the piston plate and the extrusion plate and the fixed connection between the heat preservation box and the graphite mold, when the device is used for treating silicon melt, the heat loss can be avoided by pumping inert gas into the heat preservation box, so that the heat preservation effect of the device is better, not only is the waste of a large amount of electric energy avoided, but also the normal treatment of the silicon melt is ensured;

4. according to the silicon melt pouring device, the gas collecting hopper and the active carbon filter screen are arranged, the arrangement is matched with the sliding connection of the active carbon filter screen and the containing box, the communication of the containing box and the conveying pipe and the communication of the adapter pipe and the gas collecting hopper, when the silicon melt is poured, harmful gas generated by pouring can be drawn into the containing box to be adsorbed and filtered, and therefore the phenomenon that the harmful gas harms the health of workers and the environment is avoided.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the installation structure of the push plate of the present invention;

FIG. 3 is a schematic view of the second heat conduction case according to the present invention;

FIG. 4 is a schematic view of the installation structure of the air collecting hopper of the present invention;

FIG. 5 is a schematic view of the mounting structure of the first resistance wire of the present invention;

fig. 6 is a schematic view of the overall structure of the air collecting hopper of the present invention.

In the figure: 1-graphite mold, 2-processing device, 201-first heat conduction box, 202-first resistance wire, 203-electric telescopic rod, 204-push plate, 205-first temperature sensor, 206-electric heating plate, 207-discharge pipe, 208-second resistance wire, 209-first connecting mold, 210-third resistance wire, 211-second temperature sensor, 212-second heat conduction box, 213-second connecting mold, 3-shielding cover, 4-heat preservation device, 401-heat preservation box, 402-piston plate, 403-spring, 404-extrusion plate, 405-pressure sensor, 406-air inlet pipe, 407-control valve, 5-controller, 6-support plate, 7-adsorption device, 701-containing box, 702-positioning cover, 703-an active carbon filter screen, 704-a delivery pipe, 705-an air pump, 706-a switching pipe and 707-an air collecting hopper.

Detailed Description