Monocrystalline silicon drawing re-feeding and feeding device

Abstract

The utility model discloses a single crystal silicon drawing re-feeding and feeding device, which relates to the technical field of feeding and comprises a conveyor shell, a conveyor belt body is arranged in the conveyor shell, a dustproof cover plate is fixedly mounted on the conveyor shell, a feeding hopper is fixedly mounted at the lower end of the conveyor shell, and a dust collection mechanism is arranged on the feeding hopper. The dust collection mechanism comprises a dust collection pipeline fixedly installed at the upper end of the feeding hopper, dust collection holes are formed in the inner side of the dust collection pipeline, a pipeline connector is arranged on the dust collection pipeline, a T-shaped pipeline is connected to the pipeline connector, a dust removal filter screen is arranged at the upper end of the T-shaped pipeline, a cover body with holes is connected to the upper end of the T-shaped pipeline, and a draught fan is fixedly installed in the side end of the T-shaped pipeline. A sealing mechanism is arranged at the lower end of the T-shaped pipeline. According to the single crystal silicon drawing re-feeding and feeding device, the dust collection mechanism and the sealing mechanism are used in cooperation, dust generated when materials fall onto the feeding hopper can be absorbed, and pollution to the surrounding environment is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of single crystal silicon drawing complex feeding feeding device. BACKGROUND

[0002] Single crystal silicon is the crystal formed by silicon atom with diamond lattice arrangement, with dark gray metallic luster, is one of the most pure substances in the world. Its purity usually requires to reach 99.9999% or more, even can reach 99.9999999% or more, is ideal material for manufacturing high-performance semiconductor devices. Single crystal silicon has significant semiconductivity, by incorporating trace amount of group IV or group VA element, can form P-type or N-type semiconductor, and then be used to manufacture solar cell, chip etc. In the production process of polysilicon, the raw material carrier used for reducing furnace growth silicon rod is called silicon core, silicon core is generated by drawing through single crystal furnace to generate silicon rod, and silicon rod is processed through wire cutting, grinding cone, pickling etc. to generate silicon core, in the production process of silicon rod, due to the size of single crystal furnace model, silicon rod can be drawn into shape once. 4 times of intermittent secondary feeding are needed in production process, about 60Kg / barrel is fed each time.

[0003] When feeding, mechanical arm grabs material bag into feeding hopper, after material bag is grabbed into feeding hopper, bag breaker will cut open material bag, after material bag is cut open, material will drop into feeding hopper, and a large amount of dust will be stirred up when material drops, polluting surrounding environment. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of single crystal silicon drawing complex feeding feeding device to solve the problem that a large amount of dust will be stirred up when material drops in prior art.

[0005] In order to achieve the above object, the utility model provides the following technical scheme: a single crystal silicon drawing compound feeding and feeding device, including conveyer casing, the conveyer casing is equipped with conveyer belt body, the conveyer casing is fixedly installed with dustproof cover, the conveyer casing lower extreme is fixedly installed with the feeding hopper, be equipped with dust absorption mechanism on the feeding hopper, dust absorption mechanism includes the dust absorption pipeline fixedly installed on the feeding hopper upper end, the dust absorption pipeline inside is equipped with dust absorption hole, be equipped with pipeline connector on the dust absorption pipeline, be connected with T-shaped pipeline on the pipeline connector, be equipped with dust filter screen on T-shaped pipeline upper end, be equipped with the cover body with hole on T-shaped pipeline upper end, fan is fixedly installed in T-shaped pipeline side end, be equipped with sealing mechanism at T-shaped pipeline lower end, sealing mechanism includes the mechanism casing fixedly installed on the edge at T-shaped pipeline lower end, the telescopic support swing mounting in the mechanism casing, spring seat is fixedly installed on the telescopic support, be equipped with reset spring on the telescopic support, pressure rod is fixedly installed on the telescopic support upper end, pressure ring is fixedly installed on the pressure rod upper end, be connected with sealing plug on the telescopic support lower end, and sealing plug can block T-shaped pipeline lower end.

[0006] Preferably, the fan is provided with a positioning bracket, and the fan is fixed on the side end of the T-shaped pipeline through the positioning bracket.

[0007] Preferably, the dustproof cover is provided with an inlet and outlet, the T-shaped pipeline lower end extends into the conveyer casing through the inlet and outlet, and the dust filter screen can prevent dust from being discharged through the upper end of the T-shaped pipeline.

[0008] Preferably, the T-shaped pipeline is connected to the dust absorption pipeline through the pipeline connector, the cover body with hole is provided with threads, and the cover body with hole is connected to the upper end of the T-shaped pipeline through the threads.

[0009] Preferably, the sealing plug is provided with connecting legs on both sides, and the telescopic support is connected to both sides of the sealing plug through the connecting legs.

[0010] Preferably, the mechanism casing is provided with movable holes at both upper and lower ends, and the telescopic support is swing mounted on the mechanism casing through the movable holes.

[0011] Preferably, one end of the reset spring is connected to the spring seat, the other end of the reset spring is connected to the bottom of the mechanism casing, the sealing plug is aligned with the lower end of the T-shaped pipeline, and the reset spring provides elastic force for the spring seat, so that the telescopic support has a tendency to move upward.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] 1. In this application, the material falls into the feeding hopper and dust is raised; at this time, the fan can be started, the fan operates to extract air from the dust suction pipeline, forming a negative pressure, thereby absorbing the dust raised by the material falling, effectively reducing the pollution to the surrounding environment; and the absorbed material will eventually accumulate in the T-shaped pipeline.

[0014] 2. In addition, in this application, by pressing down the pressing rod downward, the sealing plug can be driven to move downward, thereby separating from the lower end of the T-shaped pipeline, facilitating the discharge of the accumulated dust in the pipeline; when the pressing rod is released, the reset spring will promote the telescopic strut on the spring seat to move upward, the telescopic strut rising drives the sealing plug to move upward, and finally the sealing plug seals the lower end of the T-shaped pipeline. BRIEF DESCRIPTION OF DRAWINGS

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

[0016] Figure 2 It is a schematic diagram of the local structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the dust suction mechanism of the utility model;

[0018] Figure 4 It is a schematic diagram of the sealing mechanism of the utility model.

[0019] Reference numerals in the drawing: 1, conveyor shell; 2, dust cover; 3, conveyor belt body; 4, feeding hopper; 5, dust suction mechanism; 501, dust suction pipeline; 502, dust suction hole; 503, pipeline connector; 504, positioning support; 505, fan; 506, hole cover; 507, dust removal filter screen; 508, T-shaped pipeline; 6, sealing mechanism; 601, pressing ring; 602, pressing rod; 603, mechanism shell; 604, connecting leg; 605, telescopic strut; 606, reset spring; 607, spring seat; 608, sealing plug. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0021] For example, Figure 1 and Figure 2The utility model provides a kind of technical scheme of single crystal silicon drawing compound feeding and feeding device, including conveyor shell body 1, dustproof cover plate 2 is fixedly installed on conveyor shell body 1, and dust suction mechanism 5 is equipped on upper hopper 4, sealing mechanism 6 is equipped at the lower end of T-shaped pipeline 508, by the cooperation of dust suction mechanism 5 and sealing mechanism 6, can absorb the dust stirred when material falls into upper hopper 4, reduce the pollution of surrounding environment.

[0022] As Figure 2 And Figure 3 As shown in the drawing, dust suction mechanism 5 includes dust suction pipeline 501 fixedly installed on the upper end of upper hopper 4, dust suction hole 502 is formed in the inner side of dust suction pipeline 501, pipeline connector 503 is provided on dust suction pipeline 501, T-shaped pipeline 508 is connected to pipeline connector 503, dust removal screen 507 is provided at the upper end of T-shaped pipeline 508, hole cover body 506 is connected to the upper end of T-shaped pipeline 508, fan 505 is fixedly installed in the side end of T-shaped pipeline 508, positioning bracket 504 is provided on fan 505, fan 505 is fixed on the side end of T-shaped pipeline 508 through positioning bracket 504, inlet and outlet are formed in dustproof cover plate 2, and T-shaped pipeline 508 extends into conveyor shell body 1 through inlet and outlet.

[0023] Specifically, when material falls into upper hopper 4, dust will be stirred, at this time, fan 505 can be started, after starting fan 505, it will extract air in dust suction pipeline 501, forming negative pressure in dust suction pipeline 501, thereby absorbing the dust stirred when material falls into upper hopper 4, reducing the pollution of surrounding environment, and the absorbed material will eventually concentrate in T-shaped pipeline 508.

[0024] As Figure 2 And Figure 4 As shown in the drawing, sealing mechanism 6 includes mechanism shell body 603 fixedly installed at the edge of the lower end of T-shaped pipeline 508, telescopic strut 605 is movably installed in mechanism shell body 603, spring seat 607 is fixedly installed on telescopic strut 605, reset spring 606 is sleeved on telescopic strut 605, pressure rod 602 is fixedly installed on the upper end of telescopic strut 605, pressure ring 601 is fixedly installed on the upper end of pressure rod 602, sealing plug 608 is connected to the lower end of telescopic strut 605, connecting legs 604 are provided on both sides of sealing plug 608, telescopic strut 605 is connected to both sides of sealing plug 608 through connecting legs 604, active holes are formed in the upper and lower ends of mechanism shell body 603, and telescopic strut 605 is movably installed on mechanism shell body 603 through active holes.

[0025] Specifically, after the pressing rod 602 is pressed, the sealing plug 608 will be driven to move downward, so that the sealing plug 608 is separated from the lower end of the T-shaped pipeline 508, and accumulated dust in the T-shaped pipeline 508 is conveniently discharged.

[0026] Working principle: when in use, first, the bag is grabbed by the mechanical arm into the feeding hopper 4, and then the bag opener cuts the bag, and then the material falls onto the conveyor belt body 3 below the feeding hopper 4, so that the material is conveyed to the use position, and when the material falls into the feeding hopper 4, dust is generated, at this time, the fan 505 can be started, and after the fan 505 is started, air in the dust suction pipeline 501 is sucked out, a negative pressure is formed in the dust suction pipeline 501, so that the dust generated when the material falls into the feeding hopper 4 is absorbed, and the surrounding environment is reduced. Pollution, the absorbed material is finally concentrated in the T-shaped pipeline 508, and when the dust in the T-shaped pipeline 508 is too much, the pressing rod 602 can be pressed, and after the pressing rod 602 is pressed, the telescopic support 605 will be driven to move downward, and after the telescopic support 605 moves downward, the sealing plug 608 will be driven to move downward, so that the sealing plug 608 is separated from the lower end of the T-shaped pipeline 508, and accumulated dust in the T-shaped pipeline 508 is conveniently discharged. After the accumulated dust in the T-shaped pipeline 508 is discharged, the pressing rod 602 can be released, and since one end of the reset spring 606 is connected to the spring seat 607, and the other end of the reset spring 606 is connected to the bottom of the mechanism shell 603, after the pressing rod 602 is released, the reset spring 606 will drive the telescopic support 605 on the spring seat 607 to move upward, and after the telescopic support 605 moves upward, the sealing plug 608 will be driven to move upward, so that the sealing plug 608 is blocked at the lower end of the T-shaped pipeline 508, and dust is conveniently collected.

[0027] It is obvious for those skilled in the art that the present application is not limited to the details of the above-mentioned exemplary embodiments, and can be realized in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A single crystal silicon pulling and re-feeding feeding device, comprising a conveyor housing (1), a conveyor belt body (3) provided in the conveyor housing (1), a dust cover (2) fixedly mounted on the conveyor housing (1), and a feeding hopper (4) fixedly mounted at the lower end of the conveyor housing (1), characterized in that: The dust suction mechanism (5) is provided on the upper feeding hopper (4), and the dust suction mechanism (5) comprises a dust suction pipeline (501) fixedly installed on the upper end of the upper feeding hopper (4), a dust suction hole (502) is formed in the inner side of the dust suction pipeline (501), a pipeline connector (503) is provided on the dust suction pipeline (501), a T-shaped pipeline (508) is connected to the pipeline connector (503), a dust removal filter screen (507) is arranged on the upper end of the T-shaped pipeline (508), a hole cover body (506) is connected to the upper end of the T-shaped pipeline (508), a fan (505) is fixedly installed in the side end of the T-shaped pipeline (508), a sealing mechanism (6) is arranged at the lower end of the T-shaped pipeline (508), the sealing mechanism (6) comprises a mechanism shell (603) fixedly installed on the lower end edge of the T-shaped pipeline (508), a telescopic support (605) is movably installed in the mechanism shell (603), a spring seat (607) is fixedly installed on the telescopic support (605), a reset spring (606) is sleeved on the telescopic support (605), a pressing rod (602) is fixedly installed on the upper end of the telescopic support (605), a pressing ring (601) is fixedly installed on the upper end of the pressing rod (602), and a sealing plug (608) is connected to the lower end of the telescopic support (605).

2. The apparatus according to claim 1, wherein the apparatus is characterized by: The fan (505) is fixed on the side end of the T-shaped pipeline (508) through the positioning support (504).

3. The apparatus according to claim 2, wherein the apparatus is characterized by: The dustproof cover plate (2) is provided with an inlet and outlet, and the lower end of the T-shaped pipeline (508) extends into the conveyor shell (1) through the inlet and outlet.

4. The apparatus according to claim 3, wherein the apparatus further comprises a second feeding device. The T-shaped pipeline (508) is connected to the dust suction pipeline (501) through the pipeline connector (503), the hole cover body (506) is provided with threads, and the hole cover body (506) is connected to the upper end of the T-shaped pipeline (508) through the threads.

5. A recharging material feeding device for single crystal silicon pulling according to claim 4, wherein: The sealing plug (608) is provided with connecting legs (604) on both sides, and the telescopic support (605) is connected to both sides of the sealing plug (608) through the connecting legs (604).

6. The apparatus according to claim 1, wherein: The mechanism shell (603) is provided with movable holes at the upper and lower ends, and the telescopic support (605) is movably installed on the mechanism shell (603) through the movable holes.

7. A recharging material feeding device for single crystal silicon pulling according to claim 6, wherein: One end of the reset spring (606) is connected to the spring seat (607), the other end of the reset spring (606) is connected to the bottom of the mechanism shell (603), and the sealing plug (608) is aligned with the lower end of the T-shaped pipeline (508) in the up-down direction.

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