Spraying type ingot mould for industrial silicon casting

Abstract

The utility model belongs to the technical field of metallurgy and energy, and discloses a spraying type ingot mould for industrial silicon casting, which comprises a casting ingot mould, a heat-resistant cast iron frame is integrally mounted at the top of the casting ingot mould, a groove is arranged in the center of the casting ingot mould, a heat-resistant cast iron plate is mounted in the groove, asbestos cloth is laid at the top of the heat-resistant cast iron plate, and a heat-resistant cast iron plate is arranged in the asbestos cloth. Refractory bricks are placed on the asbestos cloth, the upper horizontal planes of the refractory bricks are flush with the upper horizontal planes of the grooves, and high-temperature-resistant material layers are sprayed on the inner side area of the heat-resistant cast iron frame and the upper side areas of the refractory bricks. The heat-resistant cast iron frame is symmetrically provided with four silicon forking ports, the bottoms of the silicon forking ports are provided with inserting holes, the silicon forking ports are provided with blocking heads, and the blocking heads are connected with inserting columns matched with the inserting holes in specification and size.

Description

Technical Field

[0001] The utility model belongs to the technical field of metallurgy and energy, and particularly relates to a spray-type ingot mold for industrial silicon casting. Background Art

[0002] In the production of industrial silicon, the silicon liquid smelted in the ore-arc furnace needs to be cast and molded. Currently, most of the industrial silicon casting ingot molds used in the industry are naturally cooled ingot molds. Small-sized silicon particles or silicon powder are laid on the bottom of the ingot mold to protect the bottom of the ingot mold from being burned when the high-temperature silicon liquid is cast. The laying of the ingot mold is done manually and must be done before each silicon liquid casting. The workload is large and the work efficiency is low. Moreover, these silicon particles or silicon powder cannot be completely melted after contact with the silicon liquid, so the remaining part will stick to the ingot mold, thereby affecting the quality of the silicon block and requiring manual removal. Furthermore, if the thickness of the silicon particles or silicon powder is uneven, the ingot mold will melt in the areas where they are laid less, which not only affects the service life of the ingot mold, but also causes product contamination and reduces the product grade. There is also the risk of silicon liquid leaking after the ingot mold burns through, causing casualties and property losses. Utility Model Content

[0003] In view of the problems raised by the above background technology, the purpose of the present utility model is to provide a spray-coated ingot mold for industrial silicon casting.

[0004] In order to achieve the above technical objectives, the technical solutions adopted by this utility model are as follows:

[0005] A spray-coated ingot mold for industrial silicon casting, comprising a casting ingot mold, a heat-resistant cast iron frame integrally mounted on the top of the casting ingot mold, a groove provided at the center of the casting ingot mold, a heat-resistant cast iron plate mounted in the groove, asbestos cloth laid on top of the heat-resistant cast iron plate, refractory bricks placed on the asbestos cloth, the upper horizontal surface of the refractory bricks being flush with the upper horizontal surface of the groove, and a high-temperature resistant material layer sprayed on an inner area of ​​the heat-resistant cast iron frame and an upper area of ​​the refractory bricks;

[0006] The heat-resistant cast iron frame is symmetrically provided with four fork silicon openings, the bottom of the fork silicon openings is provided with a socket, the fork silicon openings are installed with a stopper, and the stopper is connected with a column with a specification and size matching the socket.

[0007] It is further defined that the casting ingot mold is symmetrically installed with four suspension rods in total. Such a design is conducive to being suspended and used by a crane.

[0008] It is further defined that the plug post is rotatably mounted on the stop head, and the lower end portion of the plug post is threadedly connected to the socket. Such a design enhances the installation strength of the stop head.

[0009] The beneficial effects of adopting the utility model are:

[0010] The structural design of the utility model is simple to operate, can be recycled many times, and does not require silicon powder as a base, thereby reducing the problem of quality pollution and extending the service life of the ingot mold;

[0011] The structural design of the utility model can achieve no direct contact between the ingot mold and the high-temperature silicon water, thereby reducing the risk of investment mold; at the same time, by spraying high-temperature resistant coating, the use of mold-laying silicon is replaced, the segregation of silicon liquid is reduced, and the product quality is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention can be further described by way of non-limiting examples given in the accompanying drawings;

[0013] Figure 1 This is a structural schematic diagram of an embodiment of a spray-coated ingot mold for industrial silicon casting according to the present utility model;

[0014] Figure 2 This is a schematic structural diagram of an embodiment of a spray-coated ingot mold for industrial silicon casting without refractory bricks according to the present invention;

[0015] Figure 3 This is a schematic cross-sectional view of an embodiment of a spray-coated ingot mold for industrial silicon casting according to the present invention;

[0016] Figure 4 This is a schematic cross-sectional view of the stopper position of an embodiment of a spray-coated ingot mold for industrial silicon casting according to the present invention;

[0017] The main component symbols are described as follows:

[0018] Casting ingot mold 1; heat-resistant cast iron frame 2; groove 3; heat-resistant cast iron plate 4; asbestos cloth 5; refractory brick 6; high-temperature resistant material layer 7; fork silicon mouth 8; socket 9; stop head 10; plug column 11; suspension rod 12. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments.

[0020] like Figures 1 to 4 As shown, the utility model is a spray-coated ingot mold for industrial silicon casting, comprising a casting ingot mold 1, a heat-resistant cast iron frame 2 integrally installed on the top of the casting ingot mold 1, a groove 3 provided at the center of the casting ingot mold 1, a heat-resistant cast iron plate 4 installed in the groove 3, an asbestos cloth 5 laid on the top of the heat-resistant cast iron plate 4, a refractory brick 6 placed on the asbestos cloth 5, the upper horizontal surface of the refractory brick 6 is flush with the upper horizontal surface of the groove 3, and a high-temperature resistant material layer 7 is sprayed on the inner area of ​​the heat-resistant cast iron frame 2 and the upper area of ​​the refractory brick 6;

[0021] The heat-resistant cast iron frame 2 is symmetrically provided with four fork silicon openings 8, a socket 9 is provided at the bottom of the fork silicon opening 8, a stopper 10 is installed on the fork silicon opening 8, and the stopper 10 is connected to a plug column 11 with a specification and size matching the socket 9.

[0022] In this embodiment, when using a spray-type ingot mold for industrial silicon casting, after laying asbestos cloth 5 on the heat-resistant cast iron plate 4, refractory bricks 6 are placed on the upper side of the asbestos cloth 5 in a filling manner, and then a high-temperature resistant material layer 7 can be sprayed on the inner side of the heat-resistant cast iron frame 2 and the top of the refractory bricks 6. Under the effect of the high-temperature resistant material layer 7, the silicon water will only come into contact with the high-temperature resistant material layer 7 and will not affect the casting ingot mold 1, thereby reducing the risk of investment and extending the service life of the casting ingot mold 1. At the same time, by spraying the high-temperature resistant coating 7, the use of mold-laying silicon is replaced, the segregation of silicon liquid is reduced, and the product quality is improved.

[0023] Preferably, the casting ingot mold 1 is symmetrically installed with four suspension rods 12. Such a design is conducive to the use of a crane for suspension. In fact, the number and position of the suspension rods 12 can also be considered according to specific circumstances.

[0024] Preferably, the plug post 11 is rotatably mounted on the stop head 10, and the lower end of the plug post 11 is threadedly connected to the socket 9. This design enhances the installation strength of the stop head 10. In fact, the matching structure between the plug post 11 and the socket 9 can also be considered according to specific circumstances.

[0025] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by persons skilled in the art without departing from the spirit and technical principles disclosed herein shall be covered by the claims of the present invention.

Claims

1. A spray-coated ingot mold for industrial silicon casting, comprising a casting ingot mold (1), characterized in that: A heat-resistant cast iron frame (2) is integrally installed on the top of the casting ingot mold (1); a groove (3) is provided at the center of the casting ingot mold (1); a heat-resistant cast iron plate (4) is installed in the groove (3); an asbestos cloth (5) is laid on the top of the heat-resistant cast iron plate (4); a refractory brick (6) is placed on the asbestos cloth (5); the upper horizontal surface of the refractory brick (6) is flush with the upper horizontal surface of the groove (3); and a high-temperature resistant material layer (7) is sprayed on the inner area of ​​the heat-resistant cast iron frame (2) and the upper area of ​​the refractory brick (6); The heat-resistant cast iron frame (2) is symmetrically provided with four forked silicon openings (8), each of which has a socket (9) at its bottom. A stopper (10) is installed on the forked silicon opening (8), and the stopper (10) is connected to a plug post (11) whose specifications and dimensions match those of the socket (9).

2. The spray-coated ingot mold for industrial silicon casting according to claim 1, characterized in that: The casting ingot mold (1) is symmetrically equipped with four suspension rods (12).

3. The spray-coated ingot mold for industrial silicon casting according to claim 2, characterized in that: The plug post (11) is rotatably mounted on the stop head (10), and the lower end of the plug post (11) is threadedly connected to the insertion hole (9).

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