CN-224207516-U - Rejection device of granular polycrystalline silicon

CN224207516UCN 224207516 UCN224207516 UCN 224207516UCN-224207516-U

Abstract

The utility model discloses a granular polycrystalline silicon rejection device which comprises an upper mechanism, a lower mechanism, a gasket and a filter plate, wherein the upper mechanism comprises an upper body and an upstream pipeline, the upstream pipeline is arranged at the top of the upper body, the bottom of the upper body is connected with the lower mechanism, the lower mechanism comprises a lower body and a downstream pipeline, the downstream pipeline is arranged at the bottom of the lower body, the upper part of the lower body is connected with the bottom of the upper body, the gasket is arranged at the joint of the bottom of the upper body and the upper part of the lower body, and the filter plate is embedded into the lower body and is close to the gasket. Therefore, the utility model can stop the risk of introducing foreign matters and prolong the service life.

Inventors

Ma Jiutian
YANG ZHENZHONG
YU YADONG
CHEN XIYU
GAO JIANG
JIN YIQIAN

Assignees

陕西有色天宏瑞科硅材料有限责任公司

Dates

Publication Date: 20260508
Application Date: 20250514

Claims (8)

1. The granular polycrystalline silicon discharging device is characterized by comprising an upper mechanism, a lower mechanism, a gasket and a filter plate; The upper mechanism comprises an upper body and an upstream pipeline, the upstream pipeline is arranged at the top of the upper body, and the bottom of the upper body is connected with the lower mechanism; The lower mechanism comprises a lower body and a downstream pipeline, the downstream pipeline is arranged at the bottom of the lower body, and the upper part of the lower body is connected with the bottom of the upper body; The gasket is arranged at the joint of the bottom of the upper body and the upper part of the lower body; the filter board is embedded into the lower body and is close to the gasket, and the filter board is provided with uniformly distributed multiple holes.
2. The apparatus for discharging granular polycrystalline silicon according to claim 1, wherein the upstream pipe comprises an upper port for feeding with a flange, and the downstream pipe comprises a lower port for discharging with a flange.
3. The apparatus for discharging granular polycrystalline silicon according to claim 1, wherein the upper body is of cylindrical design.
4. The apparatus for discharging granular polycrystalline silicon according to claim 1, comprising: the lower body is in a conical design.
5. The apparatus of claim 1, wherein the downstream pipe is of three-way design and each port is provided with a flange.
6. The apparatus for discharging granular polycrystalline silicon according to claim 1, wherein the outer surface of the upper mechanism and the outer surface of the lower mechanism are made of metal pieces, respectively.
7. The apparatus for discharging granular polycrystalline silicon according to claim 1, wherein the inner surface of the upper mechanism and the inner surface of the lower mechanism are coated with a wear-resistant material or lined with a nonmetallic material, respectively.
8. The apparatus for discharging granular polycrystalline silicon according to any one of claims 1 to 7, wherein the upstream pipe is disposed obliquely.

Description

Rejection device of granular polycrystalline silicon Technical Field The utility model relates to the field of machinery, in particular to a rejection device for granular polycrystalline silicon. Background In chemical production, the pipeline is an important conveying component connected with the whole system, and common conveying medium types are three types of gas, liquid and solid, and the pipeline is used for conveying, distributing, mixing, separating, discharging, metering or controlling fluid flow through connection with equipment. The granular polycrystalline silicon flows and uses the pipeline to realize closed loop conveying, if foreign matters enter the pipeline and possibly block downstream equipment, valves and the like, the stable operation of production is not facilitated, and the pollution caused by artificial introduction exists in the opening operation, so that the quality of the product is reduced, and even the pipeline is damaged. In the process of realizing the utility model, the inventor finds that in the prior granular polycrystalline silicon rejection device, equipment bolts fall off, raw and auxiliary materials are worn and nonmetallic scraps are possibly introduced into products in a material processing system, so that the fluidity of the materials in a pipeline is poor, the pipeline is required to be disassembled manually and examined section by section, the pollution area caused by manual introduction is enlarged, and the labor is consumed and the operation of a production line is restricted. It has also been found that the existing granular polysilicon production is prone to full-automatic small packages, materials are collected in small packages, and are conveyed to downstream equipment by using a conveyor belt to carry out external labeling, boxing and the like, and in order to prevent metal or nonmetal foreign matters from being introduced into each bag, a gold inspection machine is added on the conveyor belt, abnormal small bag packages are removed, and zero complaint of customers is guaranteed. But use the gold to examine the machine, the sensitivity receives surrounding metalwork and equipment body influence to make the gold examine the quick-witted sensitivity and reduce, there is the possibility of misjudgement, and some nonmetallic foreign matter does not have magnetism, and the gold examines the machine and can not discern and just can not carry out the rejection action, can cause the quality complaint after the finished product bag is packed again and sold, influences the income. Disclosure of utility model In view of the above, the embodiment of the utility model provides a rejection device for granular polycrystalline silicon, which can eliminate the risk of introducing foreign matters and prolong the service life. In order to achieve the above object, according to an embodiment of the present utility model, there is provided a rejection device for granular polycrystalline silicon, comprising an upper mechanism, a lower mechanism, a spacer and a filter plate, wherein the upper mechanism comprises an upper body and an upstream pipe, the upstream pipe is installed at the top of the upper body, the bottom of the upper body is connected with the lower mechanism, the lower mechanism comprises a lower body and a downstream pipe, the downstream pipe is installed at the bottom of the lower body, the upper part of the lower body is connected with the bottom of the upper body, the spacer is disposed at the connection between the bottom of the upper body and the upper part of the lower body, the filter plate is embedded in the lower body and is close to the spacer, and the filter plate has uniformly distributed pores. Optionally, the upstream pipeline comprises an upper port for feeding and the downstream pipeline comprises a lower port for discharging. Optionally, the upper body is of cylindrical design. Optionally, the lower body is of conical design. Optionally, the downstream pipeline is of a three-way design, and each port is provided with a flange. Optionally, the outer surface of the upper mechanism and the outer surface of the lower mechanism are made of metal pieces respectively. Optionally, the inner surface of the upper mechanism and the inner surface of the lower mechanism are respectively coated with wear-resistant materials or lined with nonmetallic materials. Optionally, the upstream pipeline is arranged obliquely. The embodiment of the utility model has the advantages that the utility model provides the granular polycrystalline silicon rejection device which can play a role of intercepting pipeline foreign matters, avoid a plurality of openings of the pipeline and avoid the risk of introducing the foreign matters, and the filter plate is embedded in the lower half part device, so that the filter plate is not damaged due to the extrusion of the pipeline, the filter plate is better protected, and the service life is prolonged. Further effects of the above-descri