Molten silicon pouring chute

Abstract

The utility model provides a silicon water pouring chute which comprises a chute body, a pouring groove is formed in the chute body in the length direction of the chute body, a discharging port is formed in one end of the pouring groove, a clamping groove is formed in the bottom of the pouring groove in the length direction of the pouring groove, and a plurality of carbon brick blocks are arranged in the clamping groove in the length direction of the clamping groove. And an inclined slag baffle is arranged at the position, close to the discharging opening, of the pouring groove. The carbon brick block is arranged at the bottom of the pouring groove, so that the impact of silicon water on the bottom of the pouring groove is effectively prevented, the repair frequency of the pouring groove is reduced, manpower is saved, and the service life of the pouring groove is prolonged; the slag baffle is arranged at the discharge hole, so that the silicon water particles containing the castable are effectively prevented from entering the silicon ingot to influence the quality of the silicon ingot; the structure is simple and the use mode is convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of silicon processing equipment and relates to a silicon water casting chute. Background Art

[0002] During the industrial silicon smelting process, the temperature of the molten silicon discharged from the furnace is at least above 1800°C. After the high-temperature molten silicon passes through the oxidative refining process, the molten silicon in the ladle needs to be poured into the ingot mold for cooling. A casting chute is required for diversion and buffering during the pouring process of the molten silicon. The service life of the traditional casting chute is relatively short. Since the casting chute will be scoured and ablated by the high-temperature molten silicon, the chute needs to be repaired after each pouring operation. In addition, the traditional casting chute has no slag blocking function, and the silicon slag will directly enter the silicon ingot, and a layer of silicon slag will adhere to the surface of the cast product silicon ingot, affecting the quality of the silicon ingot. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a silicon water casting chute aiming at the problems existing in the prior art.

[0004] For this reason, the utility model adopts the following technical solutions:

[0005] A silicon water casting chute includes a chute body. A casting groove is arranged on the chute body along the length direction of the chute body. One end of the casting groove forms a discharge port. A clamping groove is arranged at the bottom of the casting groove along the length direction of the casting groove. A plurality of carbon bricks are arranged in the clamping groove along the length direction of the clamping groove. A slag blocking plate is arranged at an inclined position near the discharge port of the casting groove.

[0006] Furthermore, an outer shell is arranged on the chute body.

[0007] Furthermore, an included angle of 40-60 degrees is formed between the slag blocking plate and the horizontal plane.

[0008] Furthermore, the width of the casting groove is 60-75 cm.

[0009] Furthermore, a slag collecting plate is arranged at the bottom end of the slag blocking plate in a horizontal setting. A plurality of through holes are arranged on the slag collecting plate.

[0010] The beneficial effects of the utility model are as follows: Carbon bricks are arranged at the bottom of the casting groove, effectively preventing the impact of molten silicon on the bottom of the casting groove, reducing the repair times of the casting groove, saving manpower, and prolonging the service life of the casting groove; a slag blocking plate is arranged at the discharge port, effectively preventing the silicon water particles containing the casting material from entering the silicon ingot and affecting the quality of the silicon ingot; the structure is simple and the use method is convenient. Description of the Drawings

[0011] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0012] In the figure, 1 is the trough body, 2 is the pouring trough, 3 is the discharge port, 4 is the outer shell, 5 is the clamping groove, 6 is the carbon brick block, 7 is the slag baffle, 8 is the slag collecting plate, and 9 is the through hole. Specific embodiments

[0013] The following is a detailed description of the present utility model in conjunction with the accompanying drawings:

[0014] As Figure 1 shown, a silicon water pouring chute includes a trough body 1. The trough body 1 is made of the commonly used casting material of the existing silicon water chute. An outer shell 4 is provided on the trough body 1. The outer shell 4 is made by welding steel plates. The trough body 1 can be protected through the outer shell 5. A pouring trough 2 is provided on the trough body 1 along the length direction of the trough body. One end of the pouring trough 2 forms a discharge port 3. When casting silicon ingots, the silicon water is poured into the pouring trough 2 from above the pouring trough 2, and then flows out through the discharge port 3 into the silicon ingot. The width of the pouring trough 2 is 60 - 75 cm, and in this embodiment, it is 68 cm. The relatively wide pouring trough 2 will cause the silicon water to fall into the ingot mold in a waterfall shape during the pouring process, reducing the scouring force of the silicon water at the landing position on the ingot mold, reducing the wear of the silicon ingot, and improving the service life of the silicon ingot. A clamping groove 5 is provided at the bottom of the pouring trough 2 along the length direction of the pouring trough 2. A plurality of carbon brick blocks 6 are provided in the clamping groove 5 along the length direction of the clamping groove 5. When the silicon water is poured into the pouring trough 2, the silicon water first falls on the carbon brick blocks 6, which can effectively prevent the silicon water from directly impacting the bottom of the pouring trough 2, effectively prevent the wear of the bottom of the pouring trough 2, improve the service life of the pouring trough 2, and there is no need to repair the bottom of the pouring trough 2 after each pouring, saving time and effort. When the carbon brick blocks 6 are worn after being used for a period of time, the carbon brick blocks 6 can be directly taken out and replaced, which is convenient and fast. A slanting slag baffle 7 is provided near the discharge port 3 of the pouring trough 2. Both ends of the slag baffle 7 are fixed to the side walls of the pouring trough 2. Specifically, an angle of 40 - 60 degrees is formed between the slag baffle 7 and the horizontal plane. In this embodiment, an angle of 50 degrees is formed between the slag baffle 7 and the horizontal plane. During the pouring process of the silicon water, the silicon water particles mixed with the casting material (the casting material mainly comes from the side walls of the pouring trough 2) splashed after the silicon water enters the pouring trough 2 can be blocked by the slag baffle 7, effectively preventing the silicon water particles from entering the silicon ingot. A horizontally arranged slag collecting plate 8 is provided at the bottom end of the slag baffle 7. The silicon water particles on the slag baffle 7 can slide down along the slag baffle 7 to the slag collecting plate 8 under the action of gravity. A plurality of through holes 9 are provided on the slag collecting plate 8 above, so that the silicon water can flow back into the pouring trough 2 through the through holes 9, and the impurities remain on the slag collecting plate 8.

[0015] The usage method of the present utility model is as follows:

[0016] When pouring silicon water, first pour the silicon water directly above the pouring groove 2 of the trough body 1 into the pouring groove 2. When the silicon water enters the pouring groove 2, it directly impacts the carbon brick blocks 6. Since the carbon brick blocks 6 have better strength than the casting material, they can effectively prevent wear under the impact of the silicon water and are more durable. After the silicon water enters the pouring groove 2, it flows out through the discharge port 3 into the silicon ingot. In addition, the silicon water particles splashed after the silicon water enters the pouring groove 2 can be blocked by the slag baffle 7, effectively preventing the silicon water particles from entering the silicon ingot. The silicon water particles on the slag baffle 7 can slide down along the slag baffle 7 to the slag collecting plate 8 under the action of gravity, and the impurities on the silicon water particles are collected by the slag collecting plate 8 to prevent the impurities from entering the silicon ingot and affecting the quality.

[0017] Using this chute does not require repair after each pouring, effectively saving manpower.

Claims

1. A silicon water casting chute, characterized in that, It includes a trough body (1), a casting trough (2) is arranged on the trough body (1) along the length direction of the trough body (1), one end of the casting trough (2) forms a discharge port (3), a clamping groove (4) is arranged on the bottom of the casting trough (2) along the length direction of the casting trough (2), and a plurality of carbon bricks (6) are arranged in the clamping groove (4) along the length direction of the clamping groove (4). A slag retaining plate (7) which is inclined is arranged at the position of the casting trough (2) close to the discharge port (3).

2. A silicon water casting chute according to claim 1, characterized in that, An outer shell (5) is arranged on the trough body (1).

3. A silica water casting chute according to claim 1, characterized in that, An included angle of 40-60 degrees is formed between the slag retaining plate (7) and the horizontal plane.

4. A silicon water casting chute according to claim 1, characterized in that, The width of the casting trough (2) is 60-75 cm.

5. A silicon water casting chute according to claim 1, characterized in that, A slag collecting plate (8) which is horizontally arranged is arranged at the bottom end of the slag retaining plate (7), and a plurality of through holes (9) are arranged on the slag collecting plate (8).

Images