CN211445992U

CN211445992U - Novel crucible backplate of polycrystal ingot furnace

Info

Publication number: CN211445992U
Application number: CN201921192971.5U
Authority: CN
Inventors: 李旭敏; 丁海; 余刚
Original assignee: Zhenjiang Rietech New Energy Science & Technology Co ltd; ZHENJIANG RENDE NEW ENERGY TECHNOLOGY CO LTD
Current assignee: Zhenjiang Rietech New Energy Science & Technology Co ltd; ZHENJIANG RENDE NEW ENERGY TECHNOLOGY CO LTD
Priority date: 2019-07-26
Filing date: 2019-07-26
Publication date: 2020-09-08
Anticipated expiration: 2029-07-26

Abstract

The utility model relates to a novel crucible guard plate of a polycrystal ingot furnace, which comprises a guard plate, wherein a plurality of guard plate slots and guard plate inserting lugs are respectively arranged at two sides of the guard plate, and the outer sides of the guard plate inserting lugs inserted into the guard plate slots are fixed by carbon-carbon bolts; the inner side of the carbon-carbon bolt is provided with a carbon-carbon gasket for adjusting the clearance. The utility model discloses an use carbon material backplate, intensity is higher than the graphite backplate, uses and inserts ear, slot connection, and joint strength is higher, inserts the ear and slide adjusting the distance between the backplate in the slot, can satisfy not unidimensional crucible's operation requirement. The utility model discloses the protection scope is limited to but not only is limited to the carbon-carbon backplate to the carbon-carbon polycrystal crucible backplate that present trade used, solves the unable not compatible problem of unidimensional crucible that satisfies of widely used backplate, protects connected mode and slot between the backplate, inserts the ear structure.

Description

Novel crucible backplate of polycrystal ingot furnace

Technical Field

The utility model belongs to the technical field of polycrystal ingot furnace, concretely relates to novel crucible backplate of polycrystal ingot furnace.

Background

In the polycrystalline ingot casting process, the crucible protective plate mainly plays a role in supporting the crucible and preventing the crucible from deforming at high temperature so as to prevent silicon leakage caused by tearing; meanwhile, the uniform heat transfer effect is achieved, and the quality of the silicon ingot is improved. At present, a mainstream crucible protective plate is made of isostatic pressing graphite, so that the strength is low, the thickness is large, the carrying is inconvenient, and when the size of a crucible is increased, the protective plate needs to be replaced, so that the production cost is increased; because the thickness of the protective plate is larger, the silicon ingot can not be put into the furnace platform when the crucible is enlarged under the condition that the furnace platform is not changed.

At present, the polycrystal crucible backplate that the trade extensively adopted is isostatic pressing graphite material, through the bolt fastening between the backplate in the use, use the bolt to pass and carry out the bolt fastening in the screw that a backplate got into another backplate lateral part between the backplate, when crucible size grow, two adjacent backplates can not paste tightly, produce the gap, gap department crucible does not have the support, if this gap position crucible leaks silicon, silicon liquid can directly flow out, rather than by crucible overflow hole water conservancy diversion to overflow silk, thereby increase overflow risk and loss.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel crucible backplate of polycrystal ingot furnace for improve the operation requirement that current backplate can't satisfy the bigger size crucible, and to the relatively poor problem of compatibility of not unidimensional crucible. The polycrystalline crucible guard plate has the advantages of high strength, reliable structure and convenience in use, can be flexibly adjusted according to the size of a crucible, and is favorable for reducing the production cost.

In order to achieve the above object, the technical solution of the present invention is as follows.

A novel crucible protection plate of a polycrystalline ingot furnace comprises a protection plate, wherein a plurality of protection plate slots and protection plate inserting lugs are respectively arranged on two sides of the protection plate, and the outer sides of the protection plate inserting lugs inserted into the protection plate slots are fixed by carbon-carbon bolts; the inner side of the carbon-carbon bolt is provided with a carbon-carbon gasket for adjusting the clearance.

Further, the guard plate is made of carbon.

Further, the shield size was 1164 × 600mm × 8 mm.

Furthermore, the size of the guard plate inserting lug is 100-120 × 25-35 mm; the size of the slot in the guard plate insert lug is 48 x 8mm, and the distance from the edge of the guard plate insert lug is 10 mm.

Furthermore, the number of the guard plate inserting lugs is 4-6, and the distance is 20-30 mm.

Furthermore, the size of the guard plate slot is 110-120 x 60mm, and the distance between the guard plate slot and the edge of the guard plate is 15 mm.

Furthermore, the thickness of the carbon-carbon gasket is 0-50 mm.

The utility model provides a crucible backplate of polycrystal ingot furnace, including four the same single backplate, four single backplate head and the tail connect gradually and play the supporting role outside the polycrystal crucible, single backplate one end stretches out, one end fluting. Above-mentioned crucible backplate, with four single backplate laminating in the crucible side to insert the backplate extension in the fluting, reuse buckle pins, also different according to the position of the different extension of crucible size in the fluting. Through the backplate design, adaptable in the crucible of unidimensional in same type, have intensity height, structure reliable, convenient to use, can be according to crucible size nimble regulation, be favorable to reduction in production cost.

The utility model discloses a beneficial effect lie in: the utility model discloses an use the carbon material, adopt the polycrystal crucible backplate of inserting ear and slot connection, the slot has longer size, inserts the ear and can slide in the slot to adapt to not unidimensional crucible, the fixed distance between the backplate of the gasket of different thickness of reusing. The utility model discloses an use carbon material backplate, intensity is higher than the graphite backplate, uses and inserts ear, slot connection, and joint strength is higher, inserts the ear and slide adjusting the distance between the backplate in the slot, can satisfy not unidimensional crucible's operation requirement. The utility model discloses the protection scope is limited to but not only is limited to the carbon-carbon backplate to the carbon-carbon polycrystal crucible backplate that present trade used, solves the unable not compatible problem of unidimensional crucible that satisfies of widely used backplate, protects connected mode and slot between the backplate, inserts the ear structure.

Drawings

FIG. 1 is a schematic view of a shield structure of a polycrystalline crucible currently used.

FIG. 2 is a schematic view of the structure of a protective plate for a polycrystalline crucible used in the present invention.

Fig. 3 is a schematic view of an assembled structure of a polycrystalline crucible protective plate used in the present invention.

Fig. 4 is a schematic view of a carbon plug structure used in the present invention.

Fig. 5 is a schematic structural view of a carbon gasket used in the present invention.

Detailed Description

FIG. 1 shows a protective plate structure widely used at present, the product is fixed by connecting a nut and a screw, the method is to close the end of the protective plate, the screw is used to penetrate through a protective plate groove and screwed into another side screw hole, and then the nut is used to screw, and in the using process, the screw thread is easy to break, so that the production cost is increased. When the crucible size increases, two adjacent backplate can produce great gaps, and the screw rod needs the extension simultaneously, and screw rod fracture risk and hourglass silicon risk increase.

FIG. 2 is a schematic view of the structure of a protective plate for a polycrystalline crucible used in the present invention. The novel crucible protection plate of the polycrystalline ingot furnace comprises a protection plate 1, wherein a plurality of protection plate slots 2 and protection plate inserting lugs 3 are respectively arranged on two sides of the protection plate 1, and the outer sides of the protection plate inserting lugs 3 inserted into the protection plate slots 2 are fixed by carbon-carbon bolts 4; the inner side of the carbon bolt 4 is provided with a carbon gasket 5 for adjusting the clearance. The assembled polycrystalline crucible structure is shown in FIG. 3. Fig. 4 and 5 are schematic structural diagrams of a carbon plug and a carbon gasket, respectively.

In order to facilitate understanding of the technical solution, the following drawings illustrate the technical solution in detail.

Example 1

The crucible guard plate in this embodiment is made of carbon, the size of the guard plate is 1164 × 600mm × 8mm, the size of the insertion lug is 100-110 × 25-30 mm, the size of the groove in the insertion lug is 48 × 8mm, the distance from the edge is 10mm, and the distance between five insertion lugs is 30 mm. The slot size 110 is 60mm, and the slot is apart from edge distance 15mm, inserts the ear and inserts the slot during the assembly, blocks with 0 ~ 50mm thick carbon gasket, and reuse 5mm bolt is fixed, can accomplish the backplate assembly.

Example 2

The crucible guard plate in this embodiment is made of carbon, the size of the guard plate is 1164 × 600mm × 8mm, the size of the insertion lug is 110-120 × 30-35 mm, the size of the groove in the insertion lug is 48 × 8mm, the distance from the edge is 10mm, and the distance between five insertion lugs is 20 mm. The slot size is 120 mm by 60mm, and the slot is apart from edge distance 15mm, inserts the ear and inserts the slot during the assembly, blocks with 0 ~ 50mm thick carbon gasket, and reuse 5mm bolt is fixed, can accomplish the backplate assembly.

The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.

Claims

1. The utility model provides a novel crucible backplate of polycrystal ingot furnace, includes the backplate, its characterized in that: a plurality of guard plate slots and guard plate inserting lugs are respectively arranged on two sides of the guard plate, and the outer sides of the guard plate inserting lugs inserted into the guard plate slots are fixed by carbon-carbon inserting pins; a carbon-carbon gasket is arranged on the inner side of the carbon-carbon bolt to adjust the gap; the guard plate is made of carbon; the guard plate size is 1164 mm 600mm 8 mm; the size of the guard plate inserting lug is 100-120 × 25-35 mm; the size of the groove in the guard plate inserting lug is 48 x 8mm, and the distance from the edge of the guard plate inserting lug is 10 mm; 4-6 guard plate inserting lugs are arranged, and the distance is 20-30 mm; the size of the guard plate slot is 110-120 x 60mm, and the distance between the guard plate slot and the edge of the guard plate is 15 mm; the thickness of the carbon-carbon gasket is 0-50 mm.