Inner and outer split type combined ingot mold frame for industrial silicon

Abstract

The utility model relates to industrial silicon technical field proposes an industrial silicon is with inside and outside split type combination ingot mould frame, include: ingot mould outer frame, two pairs of hoisting rods are fixedly installed to the both sides of ingot mould outer frame symmetry, and the ingot mould inner frame is set up on the ingot mould outer frame, wherein, the ingot mould inner frame includes four corner frames that are installed in the square arrangement in the four corners of ingot mould outer frame, the inside of ingot mould outer frame is provided with two first border frames and two second border frames respectively, and two first border frames and two second border frames are installed on the front and rear left and right four walls of ingot mould outer frame respectively in square arrangement, through the corner frame, first border frame and second border frame on ingot mould outer frame, make the ingot mould inner frame divide into 8 parts, can reduce the maintenance time only to replace the damaged part when maintaining, and the good leakproofness will not cause the silicon leakage, and further make the device have the use safety, the convenient installation, the low maintenance cost, the long overall service life, the no pollution to industrial silicon etc.

Description

Technical Field

[0001] This utility model relates to the field of industrial silicon technology, specifically to an inner and outer split combined ingot mold frame for industrial silicon. Background Technology

[0002] Industrial silicon is a metallurgical product smelted from silica and carbonaceous reducing agents in an electric arc furnace. Industrial silicon is also known as metallic silicon or crystalline silicon. It belongs to metallurgical grade silicon materials. Its smelting principle is to reduce silica at high temperature in an electric arc furnace with carbonaceous reducing agents to obtain liquid silicon, which is then cast to form elemental silicon products.

[0003] Chinese utility model patent CN219233901U discloses a split-type modular silicon ingot casting mold, comprising multiple ingot mold sections, which are assembled into an upward-opening groove structure. Adjacent ingot mold sections are connected by connecting units. Lifting lugs are pre-embedded on the outer wall of each ingot mold section. The advantages are: by using a split-type casting mold, if the mold lining is damaged, only the damaged section needs to be replaced, thus reducing mold replacement costs and consequently production costs. By incorporating cooling pipes, a cooling medium, such as cooling water or gas, can be introduced into the cooling pipes after molten silicon is poured in, accelerating the cooling speed of the casting mold through water or air cooling, thereby improving production efficiency and shortening the production cycle. The presence of a heat-conducting layer on the surface of the cooling base plate allows for rapid heat transfer from the casting mold to the cooling base plate, accelerating the cooling process.

[0004] However, the following problems were found in the implementation of the relevant technology: the split size is still too large, replacement requires the cooperation of a crane, the operation flexibility is poor, thermal deformation and displacement are prone to occur at the corner connection, leading to silicon liquid leakage accidents, and the connecting bolts creep and loosen at high temperature, requiring frequent shutdowns for tightening. Utility Model Content

[0005] This utility model proposes an inner and outer split combined ingot mold frame for industrial silicon, which solves the problems in related technologies where the split size is still too large, replacement requires the assistance of a crane, the operation is inflexible, thermal deformation and displacement at the corner joints can easily lead to silicon liquid leakage accidents, and the connecting bolts can creep and loosen at high temperatures, requiring frequent shutdowns for tightening.

[0006] The technical solution of this utility model is as follows: A modular ingot mold frame for industrial silicon with separate inner and outer sections, comprising:

[0007] Ingot mold outer frame;

[0008] Two pairs of lifting rods are symmetrically and fixedly installed on both sides of the outer frame of the ingot mold;

[0009] And the inner frame of the ingot mold disposed on the outer frame of the ingot mold;

[0010] The inner frame of the ingot mold includes four corner frames arranged in a square and installed at the four corners of the outer frame of the ingot mold. The inner side of the outer frame of the ingot mold is provided with two first side frames and two second side frames, and the two first side frames and the two second side frames are arranged in a square and installed on the front, back, left and right walls of the outer frame of the ingot mold.

[0011] The bottom center of the inner frame of the ingot mold is made of refractory bricks to form the ingot mold base plate.

[0012] Preferably, four stop openings are provided on the front and rear sides of the ingot mold outer frame, and a stop is provided on the inner side of each of the four stop openings.

[0013] Preferably, a handle is fixedly installed on the top of each of the four stops.

[0014] Preferably, two pairs of T-shaped grooves are provided on the front and rear side walls of the mold outer frame, and the T-shaped grooves are located inside the stop opening. Limiting blocks are fixedly installed on the left and right side walls of the stop, and the limiting blocks are inserted into the T-shaped grooves.

[0015] Preferably, the outer frame of the ingot mold, the inner frame of the ingot mold, and the stop are all made of heat-resistant alloy.

[0016] Preferably, the outer frame of the ingot mold, the inner frame of the ingot mold, and the stop are all provided with a plasma spray coating with a thickness of 0.1-0.3mm, and the plasma spray coating is an Al2O3 coating.

[0017] The working principle and beneficial effects of this utility model are as follows:

[0018] The inner frame of the ingot mold is divided into 8 parts by the corner frame, the first frame and the second frame on the outer frame of the ingot mold. During maintenance, only the damaged part needs to be replaced, which can reduce maintenance time. The good sealing will not cause silicon leakage. As a result, the device has the characteristics of safe use, convenient installation, low maintenance cost, long overall service life and no pollution to industrial silicon. Attached Figure Description

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0020] Figure 1 This is a schematic diagram of the overall structure proposed in this utility model;

[0021] Figure 2 This utility model provides a structural schematic diagram of the stop opening;

[0022] Figure 3 This utility model proposes Figure 2 Enlarged structural diagram at point A in the diagram;

[0023] Figure 4 This is a schematic diagram of the structure of the plasma spray coating proposed in this utility model;

[0024] In the figure: 1. Ingot mold outer frame; 2. Corner frame; 3. First side frame; 4. Second side frame; 5. Lifting rod; 6. Stop opening; 7. Stop; 8. Handle; 9. T-slot; 10. Limiting block; 11. Plasma spray coating. Detailed Implementation

[0025] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model. Example

[0026] Please see Figure 1 - Figure 4 An industrial silicon ingot mold frame with separate inner and outer sections, comprising:

[0027] Ingot mold outer frame 1;

[0028] Two pairs of lifting rods 5 are symmetrically and fixedly installed on both sides of the outer frame 1 of the ingot mold;

[0029] And the inner frame of the ingot mold set on the outer frame 1;

[0030] The inner frame of the ingot mold includes four corner frames 2 arranged in a square and installed at the four corners of the outer frame 1 of the ingot mold. The inner side of the outer frame 1 of the ingot mold has two first side frames 3 and two second side frames 4 respectively, and the two first side frames 3 and two second side frames 4 are arranged in a square and installed on the front, back, left and right walls of the outer frame 1 of the ingot mold.

[0031] The bottom center of the inner frame of the ingot mold is made of refractory bricks to form the ingot mold base plate.

[0032] This utility model provides an internal and external split-type combined ingot mold frame for industrial silicon. In use, the device is easy to hoist through the stop opening 6 on the outer frame 1. Then, the inner frame of the ingot mold is divided into 8 parts by the corner frame 2, the first frame 3 and the second frame 4 on the outer frame 1. During maintenance, only the damaged parts need to be replaced, which can reduce maintenance time. The good sealing performance will not cause silicon leakage. Thus, the device has the characteristics of safe use, convenient installation, low maintenance cost, long overall service life and no pollution to industrial silicon.

[0033] Furthermore, four stop openings 6 are provided on the front and rear sides of the outer frame 1 of the ingot mold, and a stop 7 is provided on the inner side of each of the four stop openings 6. A handle 8 is fixedly installed on the top of each of the four stop openings 7.

[0034] Specifically, by manually pulling the handle 8 upwards, the stop 7 can be moved out of the stop opening 6, which helps to demold the silicon ingot, makes the ingot lifting process easier, reduces damage to the mold, and improves production efficiency.

[0035] Furthermore, two pairs of T-shaped grooves 9 are provided on the front and rear side walls of the mold outer frame 1, and the T-shaped grooves 9 are located inside the stop opening 6. Limiting blocks 10 are fixedly installed on the left and right side walls of the stop 7, and the limiting blocks 10 are inserted into the T-shaped grooves 9.

[0036] Specifically, the limiting block 10 on the stop head 7 is manually inserted into the horizontal section on the T-slot 9. Then, when the limiting block 10 moves to the rear end of the horizontal section of the T-slot 9, the stop head 7 is moved downward, so that the limiting block 10 can be inserted into the vertical section of the T-slot 9, thereby allowing the stop head 7 to be stably fixed in the stop head opening 6 on the outer frame 1 of the ingot mold.

[0037] Furthermore, the outer frame 1, the inner frame 7, and the stop head 7 are all made of heat-resistant alloy.

[0038] Specifically, it can extend the service life of the ingot mold outer frame 1, corner frame 2 and stop head 7, thereby reducing the cost of castings. Example

[0039] Based on Example 1, in this example: the outer frame 1, the inner frame 1, and the stop 7 are all provided with a plasma spray coating 11 with a thickness of 0.1-0.3 mm. The plasma spray coating 11 is... coating.

[0040] The technical solution provided in this embodiment is as follows: by using plasma spray coating 11, the wetting and adhesion of silicon liquid can be reduced, the mechanical seizing during silicon ingot cooling can be reduced, and the probability of silicon sticking can be reduced.

[0041] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A modular ingot mold frame for industrial silicon, characterized in that, include: Ingot mold outer frame (1); Two pairs of lifting rods (5) are symmetrically fixed on both sides of the outer frame (1) of the ingot mold; And the inner frame of the ingot mold disposed on the outer frame (1); The inner frame of the ingot mold includes four corner frames (2) arranged in a square and installed at the four corners of the outer frame (1). The inner side of the outer frame (1) of the ingot mold has two first side frames (3) and two second side frames (4), and the two first side frames (3) and the two second side frames (4) are arranged in a square and installed on the front, back, left and right walls of the outer frame (1). The bottom center of the inner frame of the ingot mold is made of refractory bricks to form the ingot mold base plate.

2. The split mold frame for industrial silicon ingot according to claim 1, wherein: The outer frame (1) of the ingot mold has four stop openings (6) on the front and rear sides, and the inner side of each of the four stop openings (6) is provided with a stop (7).

3. The split mold frame according to claim 2, wherein: Each of the four stoppers (7) is fixedly fitted with a handle (8) on its top.

4. The split mold frame according to claim 2, wherein: Two pairs of T-shaped grooves (9) are provided on the front and rear side walls of the mold outer frame (1), and the T-shaped grooves (9) are located inside the stop opening (6). Limiting blocks (10) are fixedly installed on the left and right side walls of the stop (7), and the limiting blocks (10) are inserted into the T-shaped grooves (9).

5. The split mold frame according to claim 4, wherein: The outer frame (1), the inner frame, and the stop (7) of the ingot mold are all made of heat-resistant alloy.

6. The split mold frame according to claim 5, wherein: The outer frame (1), the inner frame (7) and the stop are all provided with a plasma spray coating (11) with a thickness of 0.1-0.3mm, and the plasma spray coating (11) is an Al2O3 coating.

Images