A high efficiency cold hydrogenation reactor

Abstract

The present application relates to a kind of high-efficiency cold hydrogenation reactor, including shell, cyclone and inlet pipe;The shell includes outer tank and inner tank, outer tank is used for the strength of whole, inner tank is used for the heat preservation inside whole, cyclone is used to separate silicon powder and gas, inlet pipe is used to add gas into shell, the inner tank is provided with deceleration assembly near the top of inlet pipe, the middle part of the inner tank is provided with multiple grids, multiple the grid is equidistant distribution, the outer side of the top end of the inner tank is provided with bearing plate near inlet pipe.Utilize gas guide cone to disperse gas to all around, under the action of guide seat one and guide seat two, make gas enter gas guide cavity one, and pass through gas guide cavity two and enter gas guide cavity four, cooperate with inlet hole, gas guide seat four and gas guide cavity two, change the direction of gas movement, and then change the speed of gas flow, at this time can reduce the effect of particle impact grid, to improve the service life of grid, and then improve the production efficiency of equipment.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of polysilicon production equipment, and particularly relates to a high-efficiency cold hydrogenation reactor. BACKGROUND

[0002] The cold hydrogenation reactor for producing high-purity silicon is a device which can convert silicon powder into high-purity polysilicon by using the cold hydrogenation technology, and the cold hydrogenation technology can avoid the use of a high-temperature furnace, thereby reducing energy consumption and production cost.

[0003] During the reaction process of the cold hydrogenation reactor, the solid particles in the gas phase will have an impact effect, which will cause the abrasion and damage of the surface of the distributor, especially when there are large-particle materials in the cold hydrogenation reactor, the impact at the distribution orifice will be aggravated, which will cause local abrasion, at this time, the hydrogen flow will be unstable, and the instability of the hydrogen flow will also cause the change of the reaction rate and the reaction effect, and may cause the reaction to be out of control. SUMMARY

[0004] This section is intended to summarize some aspects of the embodiments of the application and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract and title of the specification to avoid obscuring the purpose of this section, the abstract and the title, and such simplifications or omissions cannot be used to limit the scope of the application.

[0005] To solve the above technical problems, the application provides the following technical scheme: a high-efficiency cold hydrogenation reactor, comprising a shell, a cyclone separator and a gas inlet pipe.

[0006] The shell comprises an outer tank and an inner tank, the outer tank is used for the overall strength, and the inner tank is used for the heat preservation of the inner part; the cyclone separator is used for separating silicon powder and gas; the gas inlet pipe is used for adding gas into the shell; the inner tank is provided with a speed reduction assembly near the top of the gas inlet pipe; the middle part of the inner tank is provided with a plurality of gratings, the plurality of gratings are distributed at equal intervals; the outer side of the top end of the inner tank near the gas inlet pipe is provided with a bearing plate; the surface of the bearing plate is provided with a guide seat one; and the guide seat one can assist the gas guide cone to guide the gas into the gas inlet hole.

[0007] The deceleration assembly mainly comprises a guide seat one, a guide seat two, a guide column, a guide seat two and a guide cylinder, the guide seat two is sleeved and fixedly connected to the outer side of the guide seat one, the outer wall of the guide seat two is butted with the inner edge of the inner tank, the guide column penetrates and is fixedly connected to the shaft center of the guide seat one, the guide seat two is located above the guide seat one, the guide seat two and the guide seat one are in parallel distribution, the outer wall of the guide seat two is butted with the inner edge of the inner tank, the guide seat two is provided with a guide cavity three in the inside, the guide seat two is provided with a gas nozzle on the top, the gas nozzle is distributed at equal angles on the surface of the guide seat two, and the gas nozzle is used for discharging the gas in the guide cavity three to the inner tank.

[0008] As a preferred technical scheme of the high-efficiency cold hydrogenation reactor, the guide cavity one is arranged in the guide seat one, the bottom surface of the guide seat one is provided with a gas inlet hole, the gas inlet hole is distributed at equal angles on the bottom surface of the guide seat one, the guide cavity one is communicated with the gas inlet hole, the bottom opening size of the gas inlet hole is larger than the top opening size, so that the gas in the inner tank can be better guided into the guide cavity one, and the bottom end of the guide column is provided with a guide cone, wherein the guide cone is used for guiding the gas.

[0009] As a preferred technical scheme of the high-efficiency cold hydrogenation reactor, the guide cavity one is arranged in the guide seat one, the bottom surface of the guide seat one is provided with a gas inlet hole, the gas inlet hole is distributed at equal angles on the bottom surface of the guide seat one, the guide cavity one is communicated with the gas inlet hole, the bottom opening size of the gas inlet hole is larger than the top opening size, so that the gas in the inner tank can be better guided into the guide cavity one, and the bottom end of the guide column is provided with a guide cone, wherein the guide cone is used for guiding the gas.

[0010] As a preferred technical scheme of the high-efficiency cold hydrogenation reactor, the guide cavity one is arranged in the guide seat one, the bottom surface of the guide seat one is provided with a gas inlet hole, the gas inlet hole is distributed at equal angles on the bottom surface of the guide seat one, the guide cavity one is communicated with the gas inlet hole, the bottom opening size of the gas inlet hole is larger than the top opening size, so that the gas in the inner tank can be better guided into the guide cavity one, and the bottom end of the guide column is provided with a guide cone, wherein the guide cone is used for guiding the gas.

[0011] As a preferred technical scheme of the high-efficiency cold hydrogenation reactor, the guide cavity one is arranged in the guide seat one, the bottom surface of the guide seat one is provided with a gas inlet hole, the gas inlet hole is distributed at equal angles on the bottom surface of the guide seat one, the guide cavity one is communicated with the gas inlet hole, the bottom opening size of the gas inlet hole is larger than the top opening size, so that the gas in the inner tank can be better guided into the guide cavity one, and the bottom end of the guide column is provided with a guide cone, wherein the guide cone is used for guiding the gas.

[0012] As a preferred technical scheme of the high-efficiency cold hydrogenation reactor, the guide cavity one is arranged in the guide seat one, the bottom surface of the guide seat one is provided with a gas inlet hole, the gas inlet hole is distributed at equal angles on the bottom surface of the guide seat one, the guide cavity one is communicated with the gas inlet hole, the bottom opening size of the gas inlet hole is larger than the top opening size, so that the gas in the inner tank can be better guided into the guide cavity one, and the bottom end of the guide column is provided with a guide cone, wherein the guide cone is used for guiding the gas.

[0013] As a preferred technical scheme of the high-efficiency cold hydrogenation reactor, the bottom of the sealing ring is provided with a gear, the gear is engaged and driven with the air guide base three, a motor is arranged in the sealing ring, the rotation of the gear can be controlled, and the air guide base three can be rotated.

[0014] As a preferred technical scheme of the high-efficiency cold hydrogenation reactor, the bottom wall of the air guide cavity three is provided with an air guide cavity four, the air guide cavity four is arranged in a ring shape, and the air guide cavity four serves as a bearing for the air guide base three.

[0015] As a preferred technical scheme of the high-efficiency cold hydrogenation reactor, the air guide cavity four is provided with an air guide plate, the air guide plate is in a spiral shape, the end point of the air guide plate located at the axis of the air guide base three is taken as a base point, the width of the air guide plate gradually decreases outward in a spiral manner, so that the space gradually increases, the air pressure is smaller, and the air is more easily introduced into the outer periphery of the air guide cavity four.

[0016] As a preferred technical scheme of the high-efficiency cold hydrogenation reactor, the surface of the air guide base three is provided with air outlet holes, the air outlet holes are communicated with the air guide cavity four, the number of the air outlet holes is gradually increased outward from the axis in a spiral manner, and the gas in the air guide cavity four can be uniformly introduced into the air guide cavity three.

[0017] The beneficial effects of the present application are as follows:

[0018] 1. The gas is dispersed to the periphery by the air guide cone, under the action of the guide base one and the guide base two, the gas enters the air guide cavity one and the air guide cavity four through the air guide cavity two, the air inlet hole, the air guide base four and the air guide cavity two are matched, the direction of the gas movement is changed, and then the speed of the gas flow is changed, at this time, the effect of reducing the particle impact on the grid can be reduced, the service life of the grid is improved, and then the production efficiency of the equipment is improved.

[0019] 2. The air guide base three is in a rotating state, and the air guide plate is matched, so that the air outlet hole located at the axis can discharge a part of the gas, and more gas is introduced outward along the spiral direction, in this process, the air outlet hole close to the axis discharges the gas at the beginning, when the air outlet hole at the periphery discharges the gas, the discharge amount of the gas on all surfaces can be ensured to be the same, so that the points of contact between the gas and the grid are more uniform, which can reduce the collision between the gas and the grid at a single place, and the uniform distribution effect of the gas is improved.

[0020] Other features and advantages of the present application will be set forth in the following description, and in part will become apparent to those skilled in the art from the description, or can be learned by practice of the present application. The objects and other advantages of the present application can be achieved and obtained by the structures specifically pointed out in the specification and the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort based on these drawings. Among them:

[0022] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0023] Figure 2 It is a schematic diagram of the structure of the air guide seat one of the present application.

[0024] Figure 3 It is a schematic diagram of the structure of the air guide seat two of the present application.

[0025] Figure 4 It is a schematic diagram of the air guide seat one and the air guide seat two of the present application.

[0026] Figure 5 It is a schematic diagram of the air guide seat one and the air guide seat two of the present application.

[0027] Figure 6 It is a schematic diagram of the air guide seat three of the present application.

[0028] Figure 7 It is a schematic diagram of the air guide seat three of the present application.

[0029] The drawings are as follows: 100, outer tank; 101, inner tank; 200, cyclone separator; 300, air inlet pipe; 301, bearing plate; 302, guide seat one; 400, speed reduction assembly; 401, air guide seat one; 402, guide seat two; 403, air guide cavity one; 404, air inlet hole; 405, air guide column; 406, air guide cone; 407, air guide cavity two; 408, air guide seat two; 409, air guide cavity three; 410, air guide seat three; 411, air guide cylinder; 412, sealing ring; 413, gear; 414, gear; 415, air nozzle; 416, air guide cavity four; 417, air guide plate; 418, air outlet hole; 419, air guide seat four; 500, grid. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings of the specification.

[0031] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, it will be appreciated that the present application can be practiced in a variety of ways beyond the specifics set forth herein, which can be practiced in any number of manners, and that the present application should not be limited to the methods described herein but can be practiced in any number of other ways within the spirit and scope of the present application.

[0032] Second, the "one embodiment" or "an embodiment" referred to herein means a specific feature, structure, or characteristic under discussion. Each of such features can be included in some embodiments of the present application, but not necessarily in others. The following description of various examples of the present application is not intended to be exhaustive or to be necessarily drawn to a single embodiment of the present application, but rather to present examples of the present application in accordance with the disclosure.

[0033] Third, the present application is described in connection with exemplary embodiments, figures thereof, and throughout the specification. As used in the description of the embodiments and the illustrative drawings, the word "exemplary" is used and that word is defined to mean serving as an example, instance, or illustration. Any implementation described as exemplary is not necessarily to be construed as preferred or advantageous over other implementations. The specific structural and functional details disclosed within the specification are not to be construed as limiting, but as examples.

[0034] Embodiment 1

[0035] Reference Figure 1 For the first embodiment of the present application, the embodiment provides a high-efficiency cold hydrogenation reactor, comprising a shell, a cyclone separator 200 and a gas inlet pipe 300;

[0036] The shell comprises an outer tank 100 and an inner tank 101, the outer tank 100 is used for the overall strength, and the inner tank 101 is used for the overall internal heat preservation. The cyclone separator 200 is used for separating silicon powder and gas, and the gas inlet pipe 300 is used for adding gas to the shell. The inner tank 101 is provided with a speed reduction assembly 400 near the top of the gas inlet pipe 300, and a plurality of gratings 500 are arranged in the middle of the inner tank 101. The plurality of gratings 500 are arranged at equal intervals. The inner tank 101 is provided with a bearing plate 301 outside the top end of the gas inlet pipe 300. The surface of the bearing plate 301 is provided with a guide seat one 302. The guide seat one 302 can assist the gas guide cone 406 to guide the gas to the gas inlet hole 404.

[0037] Through the embodiment, the gas can be injected into the bottom end of the inner tank 101 through the gas inlet pipe 300. The gas moves uniformly to the grating 500 through the speed reduction assembly 400. The catalyst can promote the reaction between hydrogen molecules and unsaturated compounds to generate saturated compounds.

[0038] Embodiment 2

[0039] Reference Figure 2 , 4As shown in Figs. 5, it is a second embodiment of the present application, which is different from the previous embodiment: the deceleration assembly 400 mainly comprises a guide seat one 401, a guide seat two 402, a guide column 405, a guide seat two 408 and a guide cylinder 411, the guide seat two 402 is sleeved and fixedly connected to the outside of the guide seat one 401, the outer wall of the guide seat two 402 is butted with the inner edge of the inner tank 101, and the guide column 405 penetrates and is fixedly connected to the shaft center of the guide seat one 401.

[0040] Further, the guide seat one 401 is provided with a guide cavity one 403, the bottom surface of the guide seat one 401 is provided with air inlet holes 404, the air inlet holes 404 are equiangularly distributed on the bottom surface of the guide seat one 401, the guide cavity one 403 is communicated with the air inlet holes 404, the bottom opening size of the air inlet holes 404 is larger than the top opening size, so that the gas in the inner tank 101 can be better guided into the guide cavity one 403, the bottom end of the guide column 405 is provided with a guide cone 406, wherein the guide cone 406 is used for guiding gas; the guide column 405 is provided with a guide cavity two 407, the guide cavity one 403 is communicated with the guide cavity two 407, the guide cylinder 411 is rotationally connected with the top end of the guide column 405, the middle part of the guide cylinder 411 is provided with a through hole communicated with the guide cavity two 407, by the rotational connection relationship between the guide cylinder 411 and the guide column 405, the guide seat three 410 can be rotated and supported at the same time, and the gas can be normally transported into the guide seat three 410; the top inner edge of the guide cavity one 403 is provided with a guide seat four 419, the bottom surface of the guide seat four 419 is arc-shaped, and the bottom surface of the guide seat four 419 close to the bottom surface of the guide column 405 is higher than the bottom surface of the guide seat four 419 away from the bottom surface of the guide column 405, so that the gas in the guide cavity one 403 can be guided into the guide cavity two 407.

[0041] By the present embodiment, the gas can be dispersed and moved to the four directions after encountering the guide cone 406, and can enter the air inlet holes 404 under the action of the guide seat one 302 and the guide seat two 402, the gas can better enter the guide cavity one 403 by the shape of the air inlet holes 404, and the gas can enter the guide cavity two 407 under the guiding action of the guide seat four 419, in this process, the direction and speed of the gas are changed by the air inlet holes 404, the guide seat four 419 and the guide cavity two 407, at this time, the effect of reducing the impact of particles on the grid 500 can be reduced, so that the service life of the grid 500 is improved, and the production efficiency of the equipment is further improved.

[0042] Embodiment 3

[0043] Referring to Figure 3 , 4, 5, 6 and 7, the third embodiment of the application, which is different from the above two embodiments is: the gas guide seat two 408 is in the upper position of the gas guide seat one 401, the gas guide seat two 408 is parallel to the gas guide seat one 401, the outer wall of the gas guide seat two 408 is butted with the inner edge of the inner tank 101, the gas guide cavity three 409 is arranged in the gas guide seat two 408, the gas nozzle 415 is arranged on the top of the gas guide seat two 408, the gas nozzles 415 are arranged at equal angles on the surface of the gas guide seat two 408, and the gas nozzle 415 is used for discharging the gas in the gas guide cavity three 409 to the inner tank 101.

[0044] Further, the gas guide seat three 410 is rotatably arranged in the gas guide cavity three 409, the bottom surface of the gas guide seat three 410 is fixedly connected with the gas guide cylinder 411, the gas guide cavity four 416 is arranged in the gas guide seat three 410, the gas guide cavity four 416 is communicated with the through hole in the gas guide cylinder 411, the through hole is communicated with the gas guide cavity four 416, so that the gas in the gas guide cavity two 407 can be guided into the gas guide cavity four 416 through the through hole; the sealing ring 412 is arranged on the outer side of the gas guide seat three 410, the outer wall of the sealing ring 412 is butted with the inner edge of the gas guide cavity three 409, the gas guide cavity three 409 plays a sealing role, which can prevent the gas in the space above the gas guide seat three 410 in the gas guide cavity three 409 from flowing to the side of the gas guide seat three 410, so that the gas can be better guided to the gas nozzle 415; the gear 413 is arranged on the bottom of the sealing ring 412, the gear 413 is engaged with the gas guide seat three 410 through the gear teeth 414, and the motor is arranged in the sealing ring 412, so as to control the rotation of the gear 413, so that the gas guide seat three 410 can rotate; the gas guide cavity four 416 is arranged in the inner edge of the bottom wall of the gas guide cavity three 409, the gas guide cavity four 416 is arranged in a ring shape, and the gas guide cavity four 416 plays a bearing role for the gas guide seat three 410; the gas guide plate 417 is arranged in the gas guide cavity four 416, the gas guide plate 417 is in a spiral shape, the end point of the gas guide plate 417 at the axis of the gas guide seat three 410 is taken as a base point, the width of the outwardly spiraled gas guide plate 417 gradually decreases, so that the space gradually increases, the air pressure is smaller at this time, and the air is more easily introduced into the outer periphery of the gas guide cavity four 416; the gas outlet holes 418 are arranged on the surface of the gas guide seat three 410, the gas outlet holes 418 are communicated with the gas guide cavity four 416, and the number of the gas outlet holes 418 is gradually increased from the axis to the outside in a spiral manner, so that the gas in the gas guide cavity four 416 can be uniformly guided to the gas guide cavity three 409.

[0045] Through the embodiment, the gas in the guide cavity two 407 can enter the guide cavity four 416. Since the guide seat three 410 is in a rotating state and under the structural action of the guide plate 417, the gas outlet hole 418 located at the shaft center can discharge a part of the gas, and the gas is introduced outward in a spiral direction. In this process, since the gas outlet hole 418 close to the shaft center starts to discharge gas at the beginning, when the gas outlet hole 418 at the periphery discharges gas, the gas discharge amount of all surfaces can be ensured to be the same, thereby causing the points where the gas contacts the grid 500 to be more uniform. This can reduce the collision of the gas at a single place with the grid 500, and can improve the uniform distribution effect of the gas.

[0046] It is understood that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions can be made. Such development efforts might be complex and time-consuming, but would nevertheless be a routine undertaking for those of ordinary skill in the art having the benefit of this disclosure, without undue experimentation.

[0047] It should be noted that the above examples are only used to illustrate the technical solutions of the present application but not limit the present application. Although the present application has been particularly described with reference to the preferred embodiments, it will be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the present application, and all should be included in the scope of the claims of the present application.

Claims

1. A high efficiency cold hydrogenation reactor characterized by: The cyclone separator (200) and the air inlet pipe (300) are arranged in the shell. The shell comprises an outer tank (100) and an inner tank (101), the inner tank (101) is provided with a speed reduction assembly (400) near the top of the air inlet pipe (300), the middle of the inner tank (101) is provided with a plurality of gratings (500), the plurality of gratings (500) are distributed at equal intervals, the outer side of the top end of the inner tank (101) is provided with a bearing plate (301), and the surface of the bearing plate (301) is provided with a guide seat one (302) on the outer side. The speed reduction assembly (400) mainly comprises a guide seat one (401), a guide seat two (402), a guide column (405), a guide seat two (408) and a guide cylinder (411), the guide seat two (402) is sleeved and fixedly connected to the outer side of the guide seat one (401), the outer wall of the guide seat two (402) is abutted with the inner edge of the inner tank (101), the guide column (405) penetrates and is fixedly connected to the shaft center of the guide seat one (401), the guide seat two (408) is located above the guide seat one (401), the guide seat two (408) is distributed in parallel with the guide seat one (401), the outer wall of the guide seat two (408) is abutted with the inner edge of the inner tank (101), the inner part of the guide seat two (408) is provided with a guide cavity three (409), the top of the guide seat two (408) is provided with an air nozzle (415), and the air nozzle (415) is distributed at equal angles on the surface of the guide seat two (408). The guide seat one (401) is provided with a guide cavity one (403), the bottom surface of the guide seat one (401) is provided with an air inlet hole (404), the air inlet hole (404) is distributed at equal angles on the bottom surface of the guide seat one (401), the guide cavity one (403) is communicated with the air inlet hole (404), the bottom opening size of the air inlet hole (404) is greater than the top opening size, and the bottom end of the guide column (405) is provided with a guide cone (406). The guide column (405) is provided with a guide cavity two (407), the guide cavity one (403) is communicated with the guide cavity two (407), the guide cylinder (411) is rotationally connected with the top end of the guide column (405), and the middle part of the guide cylinder (411) is provided with a through hole communicated with the guide cavity two (407). The guide seat three (410) is rotationally arranged in the guide cavity three (409), the bottom surface of the guide seat three (410) is fixedly connected with the guide cylinder (411), the inner part of the guide seat three (410) is provided with a guide cavity four (416), and the guide cavity four (416) is communicated with the through hole in the inner part of the guide cylinder (411).

2. The high efficiency cold hydrogenation reactor of claim 1, wherein: The top inner edge of the guide cavity one (403) is provided with a guide seat four (419), the bottom surface of the guide seat four (419) is arc-shaped, and the height of the bottom surface of the guide seat four (419) close to the bottom surface of the guide column (405) is higher than the height of the bottom surface of the guide seat four (419) away from the bottom surface of the guide column (405).

3. The high efficiency cold hydrogenation reactor of claim 1, wherein: The outer side of the air guide base three (410) is provided with a sealing ring (412), the outer wall of the sealing ring (412) is butted with the inner side of the air guide cavity three (409), and the air guide cavity three (409) plays a sealing role.

4. The high efficiency cold hydrogenation reactor of claim 3, wherein: The bottom of the sealing ring (412) is provided with a gear (413), the gear (413) is engaged and driven with the air guide base three (410) by using a gear (414).

5. The high efficiency cold hydrogenation reactor of claim 1, wherein: The inner side of the bottom wall of the air guide cavity three (409) is provided with an air guide cavity four (416), the air guide cavity four (416) is arranged in a ring shape, and the air guide cavity four (416) plays a bearing role for the air guide base three (410).

6. The high efficiency cold hydrogenation reactor of claim 5, wherein: The air guide cavity four (416) is provided with an air guide plate (417), and the air guide plate (417) is in a spiral shape.

7. The high efficiency cold hydrogenation reactor of claim 1, wherein: The surface of the air guide base three (410) is provided with an air outlet hole (418), and the air outlet hole (418) is communicated with the air guide cavity four (416).

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