CN202181217U

CN202181217U - Improved device for crucible guard boards

Info

Publication number: CN202181217U
Application number: CN2011202654187U
Authority: CN
Inventors: 周慧敏; 徐志群
Original assignee: Jinko Solar Co Ltd
Current assignee: Jinko Solar Co Ltd
Priority date: 2011-07-26
Filing date: 2011-07-26
Publication date: 2012-04-04
Anticipated expiration: 2021-07-26

Abstract

The utility model provides an improved device for crucible guard boards, which is capable of avoiding overflow in ingot casting process. Two overflow holes are respectively arranged at the bottom of each guard board, and two concave vents are respectively arranged at the top of each guard board and are the same in length and width. When overflow occurs, silicon liquid can be ensured to flow out immediately, so that an overflow line is fused to give an alarm, operators are informed of overflow and take measures for decreasing harm to a furnace and loss caused by overflow, and simultaneously a ventilation system can be improved by the aid of peripheral pores. By the aid of the improved device for the crucible guard boards, lag of overflow alarm in the ingot casting process is avoided, the ventilation system for a growing environment of polycrystalline silicon cast ingots can be improved, the polycrystalline silicon growing environment is purified, the quantity of impurities in the silicon ingots is decreased relatively, and simultaneously battery conversion efficiency is improved. The operating time of the whole process is shortened relatively, and production cost is reduced.

Description

Crucible backplate improved device

Technical field

The utility model patent is a kind of crucible guard plate apparatus that is used for photovoltaic or semiconductor applications, and the overflow phenomena in the casting ingot process of letting that is specifically related to after a kind of improvement is fed back and strengthen the crucible guard plate apparatus of the air permeability of system in the very first time.

Background technology

The crucible backplate bottom that in photovoltaic or semiconductor applications manufacturing are produced, is used does not at present have hole to cause when casting ingot process generation overflow phenomena in service, can not in time feeding back, and will when strengthening the danger that overflow phenomena produced, increase the financial loss that the overflow accident is caused so yet.The perforate of crucible backplate has strengthened the blow and vent system of system, and the discharge that this helps the inclusion in technology operation silicon material in early stage and the thermal field purifies the production environment of silicon material and thermal field and purifying polycrystalline silicon ingot casting; The improvement of blow and vent system also helps the heat exchange in casting ingot process later stage, accelerates scattering and disappearing of system heat, shortens the time of technology operation.

Summary of the invention

The utility model is for overcoming existing deficiency in the existing process unit; Provide and in time to feed back information that the overflow accident takes place in the casting ingot process and the crucible guard plate apparatus that improves the system blow and vent system after a kind of improvement; This device can react the information that overflow takes place in the casting ingot process in the very first time; Reduce harm and loss that the overflow accident is produced; Simultaneously also can improve the blow and vent system in the casting ingot process process, the time of shortening integrated artistic operation that also can be relative in the time of the purifying polycrystalline silicon growing environment, obtain the polysilicon silicon ingot of relative high quality and low cost.This device has that cost is low, energy consumption is little, the processing efficiency advantages of higher.

The technical scheme of the utility model is following:

Crucible backplate improved device, wherein: the backplate bottom is provided with overflow weir; The top of backplate is provided with the matrix air discharge duct.

Crucible backplate improved device, wherein: the bottom of every backplate is respectively equipped with two overflow weirs; The top of every backplate is respectively arranged with two matrix air discharge ducts, and the matrix air discharge duct that the backplate top is provided with has identical length and width.

The top of every backplate is provided with two matrix air discharge ducts respectively, and every backplate bottom all has two overflow weirs, if like this during the generation overflow; Can guarantee the outflow of the silicon liquid very first time, thereby the fusing overflow line gives the alarm; Make the operative employee very first time learn overflow; Take measures, reduce the loss that infringement and overflow to stove cause, the aperture around simultaneously also can improve ventilation system.

The utility model employing crucible backplate improved device has solved the hysteresis quality of the overflow phenomena warning that takes place in the casting ingot process; Can well reduce producing harm and the loss that the overflow accident is produced, and also can improve the blow and vent system of the growing environment of polycrystalline silicon ingot casting; The purifying polycrystalline silicon growing environment reduces the impurity level in the silicon ingot relatively, improves the quality of silicon ingot and silicon chip, simultaneously its battery conversion efficiency is made moderate progress.The time of the shortening integrated artistic operation that good blow and vent system is also relative, the reduction that this is also relative the production cost of silicon ingot.This device has that cost is low, simple to operation, energy consumption is little, the processing efficiency advantages of higher.

Description of drawings

Accompanying drawing 1 is the texture edge synoptic diagram of the utility model device;

Accompanying drawing 2 is vertical views of the utility model device;

Reference numeral: air discharge duct 1, overflow weir 2.

Embodiment

Embodiment 1, crucible backplate improved device, wherein: the backplate bottom is provided with overflow weir 2; The top of backplate is provided with matrix air discharge duct 1.

Embodiment 2, crucible backplate improved device, wherein: the bottom of every backplate is respectively equipped with two overflow weirs 2; The top of every backplate is respectively arranged with two matrix air discharge ducts 1, and the matrix air discharge duct 1 that the backplate top is provided with has identical length and width.All the other are with embodiment 1.

The principle of work of the utility model is following:

The top of every backplate is provided with two concave groove air discharge ducts 1 respectively, and every backplate bottom has two overflow weirs 2, if like this during the generation overflow; Can guarantee the outflow of the silicon liquid very first time, thereby the fusing overflow line gives the alarm; Make the operative employee very first time learn overflow; Take measures, reduce the loss that infringement and overflow to stove cause, the aperture around simultaneously also can improve ventilation system.

Claims

1. crucible backplate improved device is characterized in that: be provided with overflow weir (2) bottom the backplate; The top of backplate is provided with matrix air discharge duct (1).

2. crucible backplate improved device as claimed in claim 1 is characterized in that: the bottom of every backplate is respectively equipped with two overflow weirs (2); The top of every backplate is respectively arranged with two matrix air discharge ducts (1), and the matrix air discharge duct (1) that the backplate top is provided with has identical length and width.