A casting channel made of industrial silicon waste graphite electrode

Abstract

The utility model discloses a utilize industrial silicon waste old graphite electrode's production's casting chute, including base and the back wall of setting at the right side position of base, when using this casting chute, select the graphite electrode of diameter 1272mm and make, the width of final production's chute main part is 1150mm, the depth range of chute main part is 450~550mm, and the length of chute main part is 2240mm, and such size design has considered the flow and conveying speed of industrial silicon liquid, and also has considered the stability and installation space requirement of equipment, and the thickness range of base is 150~250mm, and the thickness of side wall is 150mm, and the thickness of back wall is 200mm, and the thickness of back wall middle part is 200mm, and reasonable wall thickness design can ensure that the chute main part has enough strength and stability when bearing the high temperature, high pressure and impact force of industrial silicon liquid, simultaneously avoids unnecessary material waste, improves production efficiency and product quality through the cooperation of base, back wall, side wall and chute main part, and reduces production cost.

Description

Technical Field

[0001] This utility model belongs to the technical field of industrial silicon production equipment, specifically relating to a casting chute made using waste graphite electrodes from industrial silicon production. Background Technology

[0002] In the industrial silicon production process, the casting chute is a key conveying device. Its function is to safely and stably guide the high-temperature molten industrial silicon liquid from the silicon ladle to the ingot mold for shaping, which has an important impact on the final quality of industrial silicon products and production efficiency.

[0003] However, the casting chutes widely used in industrial silicon production currently have many problems that urgently need to be solved. The current situation is as follows:

[0004] The shortcomings of traditional castable refractory chutes: Traditional castable chutes are usually made of castable refractory materials (such as aluminate cement and high-strength castable refractory materials). These castable refractory materials have obvious limitations at high temperatures. On the one hand, the castable refractory material is prone to chemical reaction or physical adhesion with industrial silicon liquid (silica water). Although the temperature of silicon water is high, the adhesion force formed on the surface of the castable refractory material is still relatively strong, which makes cleaning difficult. On the other hand, the high temperature resistance and thermal stability of the castable refractory material are poor. In high temperature and rapid heating and cooling environments, cracking and peeling problems are prone to occur, which seriously affects the service life of the chute.

[0005] Cleaning and Repair Challenges: Traditional casting chutes require cleaning after approximately 30 heats of continuous use. During the cleaning process, due to the characteristics of the castable material, the chute lining is damaged in about 70% of cases. Once the lining is damaged, a large amount of aluminate cement and high-strength castable material is required for repair. Frequent repairs not only consume a lot of manpower and resources but also result in high operating costs, seriously affecting production efficiency and economic benefits. At the same time, frequent repairs may also introduce impurities, affecting the purity and quality of industrial silicon products. Utility Model Content

[0006] The purpose of this invention is to provide a casting chute made from industrial silicon waste graphite electrodes, in order to solve the problems mentioned in the background art, such as high cleaning frequency, easy damage to the inner lining, high repair cost, and potential impact on product quality of existing casting chute.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a casting chute made from industrial silicon waste graphite electrodes, comprising...

[0008] The base and the rear wall located on the right side of the base;

[0009] Side walls are installed on the front and rear sides of the upper end of the base and on the left side of the rear wall. A chute body is provided on the upper part of the base and on the inner side of the side walls and the rear wall.

[0010] The base has an insertion hole at the upper inner position, a locking post at the bottom of the insertion hole, an insertion post at the inner position of the insertion hole, a locking hole at the lower inner position of the insertion post and at the outer position of the locking post, and a reinforcing plate connected to the upper end of the insertion post and at the upper position of the base.

[0011] The combined use of the base, rear wall, side wall, and chute body improves production efficiency and product quality, reduces production costs, and provides strong support for the sustainable development of industrial silicon production. The reinforcing plate extends the service life of the equipment, while the combination of the insert, insertion hole, locking post, and locking hole enhances the convenience of installing and disassembling the reinforcing plate.

[0012] Preferably, a connecting post is installed at the lower end of the base, and a rotating tube is connected to the lower end of the connecting post.

[0013] Preferably, a fixing ring is installed at the outer position of the connecting column, and a rotating rod is connected to the right side of the fixing ring.

[0014] Preferably, a mounting base is provided at the lower end of the connecting column and at the external position of the rotating tube, and a rotating hole is provided inside the mounting base and at the external position of the rotating tube.

[0015] Preferably, a mounting plate is connected to the lower end of the mounting base, and a limiting knob is provided on the front wall of the mounting base. Through the coordinated use of the connecting column, fixing ring, rotating rod, rotating tube, rotating hole, mounting base and limiting knob, the convenience of adjusting the angle of the casting chute made from industrial silicon waste graphite electrodes is enhanced.

[0016] Preferably, a connecting plate is provided at the upper end of the connecting column and at the lower end of the base, and through holes are provided inside the connecting plate and at the four corners of the connecting plate, the through holes penetrating the connecting plate.

[0017] Preferably, a connecting hole is provided inside the lower end of the base at a position corresponding to the through hole, and internal threads are provided on the inner walls of the through hole and the connecting hole. A fastening nut is installed inside the through hole and the connecting hole at the lower end of the connecting plate, and external threads are provided on the outer wall of the fastening nut.

[0018] Preferably, the fastening nut is connected to the through hole and the inner thread of the connecting hole via the external thread on the outer wall, thereby fixing the connecting plate to the lower end of the base, and further fixing the connecting column to the lower end of the base. The connection between the connecting plate and the threaded connection enhances the stability and convenience of the connection between the base and the connecting column.

[0019] Compared with the prior art, this utility model provides a casting chute made from industrial silicon waste graphite electrodes, which has the following advantages:

[0020] 1. In the casting chute made using industrial silicon waste graphite electrodes, when using the casting chute made using industrial silicon waste graphite electrodes, the reinforcing plate is first inserted into the insertion hole inside the upper end of the base through the insertion post. When the insertion post enters the insertion hole, the locking post at the bottom of the insertion hole will lock into the locking hole inside the lower end of the insertion post, thus allowing the reinforcing plate to be installed on the upper end of the base. Because the reinforcing plate is made of silicon carbide material, its high melting point and stable structure make the equipment less prone to softening. Graphite electrodes with a diameter of 1272mm are selected for manufacturing. The final chute body has a width of 1150mm, a depth range of 450-550mm, and a length of 2240mm. This size design considers both the flow rate and conveying speed of industrial silicon liquid, as well as the stability of the equipment and the installation space requirements. The base thickness ranges from 150-250mm, the side wall thickness is 150mm, and the rear wall thickness is 200mm. The middle section of the rear wall is 200mm thick. The base, side walls, and rear wall are all integral structures. The reasonable wall thickness design ensures that the chute body has sufficient strength and stability when subjected to the high temperature, high pressure, and impact of industrial silicon liquid, while avoiding unnecessary material waste. The base, rear wall, and side walls are made of graphite electrode material. Graphite electrodes use petroleum coke and pitch coke as aggregates and coal tar pitch as binders. They are made through high-temperature treatment and have good high-temperature resistance and chemical stability. Graphite electrodes have low surface energy and self-lubricating properties, making it difficult for industrial silicon liquid to adhere. The combined use of the base, rear wall, side walls, and chute body improves production efficiency and product quality, reduces production costs, and provides strong support for the sustainable development of industrial silicon production. The reinforcing plate extends the service life of the equipment, while the combination of the insertion post, insertion hole, locking post, and locking hole enhances the convenience of installing and disassembling the reinforcing plate.

[0021] 2. In the casting chute made from industrial silicon waste graphite electrodes, when using the casting chute made from industrial silicon waste graphite electrodes, first fix the connecting column to the lower end of the base through the connecting plate, then insert the connecting column into the rotating hole inside the upper end of the mounting base through the rotating tube at the lower end, and then fix the mounting base to the position where it needs to be conveyed by the mounting plate and bolts. When it is necessary to adjust the angle of the casting chute made from industrial silicon waste graphite electrodes, first loosen the limiting knob, and then rotate the connecting column through the rotating rod. The rotating tube at the lower end of the connecting column will rotate in the rotating hole to adjust the angle of the connecting column, thereby realizing the adjustment of the angle of the casting chute made from industrial silicon waste graphite electrodes. Then tighten it through the limiting knob. Through the coordinated use of the connecting column, fixing ring, rotating rod, rotating tube, rotating hole, mounting base and limiting knob, the convenience of adjusting the angle of the casting chute made from industrial silicon waste graphite electrodes is enhanced. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the casting chute made from industrial silicon waste graphite electrodes according to this utility model.

[0023] Figure 2 This is a frontal sectional view of the casting chute made from industrial silicon waste graphite electrodes, according to this utility model.

[0024] Figure 3 This is a schematic diagram of the side view of the casting chute made using industrial silicon waste graphite electrodes according to this utility model.

[0025] Figure 4 This is a top view schematic diagram of the casting chute made using industrial silicon waste graphite electrodes according to this utility model.

[0026] Figure 5 This is an enlarged cross-sectional schematic diagram of the casting chute insert made from industrial silicon waste graphite electrodes according to this utility model.

[0027] In the diagram: 1. Rear wall; 2. Connecting plate; 3. Connecting column; 4. Side wall; 5. Base; 6. Mounting plate; 7. Mounting seat; 8. Limiting knob; 9. Fixing ring; 10. Rotating rod; 11. Rotating tube; 12. Rotating hole; 13. Reinforcing plate; 14. Chute body; 15. Inserting column; 16. Locking hole; 17. Inserting hole; 18. Locking column. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] This utility model provides, for example Figure 1-5 The casting chute shown is made using industrial silicon waste graphite electrodes. The casting chute includes a base 5 and a rear wall 1 located on the right side of the base 5. Side walls 4 are installed on the upper front and rear sides of the base 5, located on the left side of the rear wall 1. A chute body 14 is located above the base 5, inside the side walls 4 and the rear wall 1. An insertion hole 17 is provided inside the upper end of the base 5. A locking post 18 is installed at the bottom of the insertion hole 17, and an insertion post 15 is installed inside the insertion hole 17. A locking hole 16 is provided at the lower end of the insert post 15 and at the outer side of the locking post 18. A reinforcing plate 13 is connected to the upper end of the insert post 15 and at the upper end of the base 5. Through the cooperation of the base 5, the rear wall 1, the side wall 4 and the chute body 14, the production efficiency and product quality are improved, the production cost is reduced, and strong support is provided for the sustainable development of industrial silicon production. The setting of the reinforcing plate 13 extends the service life of the equipment, while the cooperation of the insert post 15, the locking hole 17, the locking post 18 and the locking hole 16 enhances the convenience of installing and disassembling the reinforcing plate 13.

[0030] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, in order to improve production efficiency and product quality and reduce production costs, when using a casting chute made from industrial silicon waste graphite electrodes, the reinforcing plate 13 is first inserted into the insertion hole 17 inside the upper end of the base 5 through the insertion post 15. When the insertion post 15 enters the insertion hole 17, the locking post 18 at the bottom of the insertion hole 17 will lock into the locking hole 16 inside the lower end of the insertion post 15, thereby allowing the reinforcing plate 13 to be installed on the upper end of the base 5. Furthermore, because the reinforcing plate 13 is made of silicon carbide material, its high melting point and stable structure make it... The equipment is not easily softened, so graphite electrodes with a diameter of 1272mm were selected for fabrication. The final chute body 14 has a width of 1150mm, a depth ranging from 450 to 550mm, and a length of 2240mm. This size design considers both the flow rate and conveying speed of industrial silicon liquid, as well as the stability of the equipment and the installation space requirements. The thickness of the base 5 ranges from 150 to 250mm, the side wall 4 is 150mm thick, and the rear wall 1 is 200mm thick. The thickness of the rear wall 1 is 200mm, and the middle part of the rear wall 1 is 200mm. The base 5, side wall 4 and rear wall 1 are all integral structures. The reasonable wall thickness design can ensure that the chute body 14 has sufficient strength and stability when subjected to the high temperature, high pressure and impact of industrial silicon liquid, while avoiding unnecessary material waste. The base 5, rear wall 1 and side wall 4 are made of graphite electrode material. The graphite electrode is made of petroleum coke and pitch coke as aggregate and coal tar pitch as binder. It is made by high temperature treatment and has good high temperature resistance and chemical stability. The graphite electrode has low surface energy and self-lubricating properties, which makes it difficult for industrial silicon liquid to adhere. Through the combined use of the base 5, rear wall 1, side wall 4 and chute body 14, the production efficiency and product quality are improved, the production cost is reduced, and strong support is provided for the sustainable development of industrial silicon production. The setting of the reinforcing plate 13 extends the service life of the equipment, and the combined use of the insertion post 15, insertion hole 17, locking post 18 and locking hole 16 enhances the convenience of installation and disassembly of the reinforcing plate 13.

[0031] A connecting post 3 is installed at the lower end of the base 5. A rotating tube 11 is connected to the lower end of the connecting post 3. A fixing ring 9 is installed on the outside of the connecting post 3. A rotating rod 10 is connected to the right side of the fixing ring 9. A mounting seat 7 is provided at the lower end of the connecting post 3 and outside the rotating tube 11. A rotating hole 12 is provided inside the mounting seat 7 and outside the rotating tube 11. A mounting plate 6 is connected to the lower end of the mounting seat 7. A limiting knob 8 is provided on the front wall of the mounting seat 7. Through the coordinated use of the connecting post 3, fixing ring 9, rotating rod 10, rotating tube 11, rotating hole 12, mounting seat 7 and limiting knob 8, the convenience of adjusting the angle of the casting chute made from industrial silicon waste graphite electrodes is enhanced.

[0032] like Figure 1 , Figure 2 and Figure 3 As shown, to enhance the ease of angle adjustment of the casting chute made from industrial silicon waste graphite electrodes, when using the casting chute made from industrial silicon waste graphite electrodes, firstly, the connecting column 3 is fixed to the lower end of the base 5 via the connecting plate 2. Then, the connecting column 3 is inserted into the rotating hole 12 inside the upper end of the mounting base 7 via the rotating tube 11 at the lower end. Next, the mounting base 7 is fixed to the position where conveying is required via the mounting plate 6 and bolts. When it is necessary to adjust the angle of the casting chute made from industrial silicon waste graphite electrodes, First, loosen the limiting knob 8, then rotate the connecting column 3 through the rotating rod 10. The rotating tube 11 at the lower end of the connecting column 3 will rotate within the rotating hole 12 to adjust the angle of the connecting column 3, thereby adjusting the angle of the casting chute made from industrial silicon waste graphite electrodes. Then, tighten the limiting knob 8. The coordinated use of the connecting column 3, fixing ring 9, rotating rod 10, rotating tube 11, rotating hole 12, mounting base 7, and limiting knob 8 enhances the convenience of adjusting the angle of the casting chute made from industrial silicon waste graphite electrodes.

[0033] A connecting plate 2 is provided at the upper end of the connecting column 3 and at the lower end of the base 5. Through holes are provided inside the connecting plate 2 at the four corners of the connecting plate 2. The through holes penetrate the connecting plate 2. A connecting hole is provided inside the lower end of the base 5 at the position corresponding to the through hole. The inner wall of the through hole and the connecting hole is provided with internal threads. A fastening nut is installed inside the through hole and the connecting hole at the lower end of the connecting plate 2. The outer wall of the fastening nut is provided with external threads. The fastening nut is connected to the inner thread of the through hole and the connecting hole through the external thread of the outer wall, thereby fixing the connecting plate 2 to the lower end of the base 5, and thus fixing the connecting column 3 to the lower end of the base 5. The connection plate 2 and the threaded connection enhance the stability and convenience of the connection between the base 5 and the connecting column 3.

[0034] like Figure 1 , Figure 2 and Figure 3 As shown, in order to enhance the stability and convenience of the connection between the base 5 and the connecting post 3, when using the casting chute made from industrial silicon waste graphite electrodes, the connecting post 3 is first connected to the connecting plate 2. Then, the connecting plate 2 is placed at the lower end of the base 5, so that the through hole inside the connecting plate 2 is aligned with the connecting hole inside the lower end of the base 5. Next, the fastening nut is inserted into the through hole and the connecting hole. The fastening nut is connected to the internal thread of the through hole and the connecting hole through the external thread on the outer wall, thereby fixing the connecting plate 2 at the lower end of the base 5, and thus fixing the connecting post 3 at the lower end of the base 5. Through the connection of the connecting plate 2 and the threaded connection, the stability and convenience of the connection between the base 5 and the connecting post 3 are enhanced.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A casting chute made from industrial silicon waste graphite electrodes, characterized in that: include The base (5) and the rear wall (1) located on the right side of the base (5); Side walls (4) are installed on the front and rear sides of the upper end of the base (5) and on the left side of the rear wall (1). A chute body (14) is provided above the base (5) and on the inner side of the side walls (4) and the rear wall (1). The base (5) has an insertion hole (17) at the upper inner position, a locking post (18) at the bottom of the insertion hole (17), an insertion post (15) at the inner position of the insertion hole (17), a locking hole (16) at the lower inner position of the insertion post (15) and at the outer position of the locking post (18), and a reinforcing plate (13) connected to the upper end of the insertion post (15) and at the upper position of the base (5). The combined use of the base (5), rear wall (1), side wall (4) and chute body (14) improves production efficiency and product quality, reduces production costs, and provides strong support for the sustainable development of industrial silicon production. The setting of the reinforcing plate (13) extends the service life of the equipment, while the combined use of the insertion post (15), insertion hole (17), locking post (18) and locking hole (16) enhances the convenience of installing and disassembling the reinforcing plate (13).

2. A casting chute made from industrial silicon waste graphite electrodes according to claim 1, characterized in that: A connecting column (3) is installed at the lower end of the base (5), and a rotating pipe (11) is connected to the lower end of the connecting column (3).

3. A casting chute made from industrial silicon waste graphite electrodes according to claim 2, characterized in that: A fixing ring (9) is installed at the outer position of the connecting column (3), and a rotating rod (10) is connected at the right side position of the fixing ring (9).

4. A casting chute made from industrial silicon waste graphite electrodes according to claim 3, characterized in that: A mounting base (7) is provided at the lower end of the connecting column (3) and at the external position of the rotating tube (11), and a rotating hole (12) is provided inside the mounting base (7) and at the external position of the rotating tube (11).

5. A casting chute made from industrial silicon waste graphite electrodes according to claim 4, characterized in that: The mounting base (7) is connected to a mounting plate (6) at its lower end. A limiting knob (8) is provided on the front wall of the mounting base (7). Through the combined use of the connecting column (3), fixing ring (9), rotating rod (10), rotating tube (11), rotating hole (12), mounting base (7) and limiting knob (8), the convenience of adjusting the angle of the casting chute made from industrial silicon waste graphite electrodes is enhanced.

6. A casting chute made from industrial silicon waste graphite electrodes according to claim 5, characterized in that: A connecting plate (2) is provided at the upper end of the connecting column (3) and at the lower end of the base (5). Through holes are provided inside the connecting plate (2) and at the four corners of the connecting plate (2). The through holes penetrate the connecting plate (2).

7. A casting chute made from industrial silicon waste graphite electrodes according to claim 6, characterized in that: A connecting hole is provided inside the lower end of the base (5) at a position corresponding to the through hole. An internal thread is provided on the inner wall of the through hole and the connecting hole. A fastening nut is installed inside the through hole and the connecting hole at the lower end of the connecting plate (2). An external thread is provided on the outer wall of the fastening nut.

8. A casting chute made from industrial silicon waste graphite electrodes according to claim 7, characterized in that: The fastening nut is connected to the through hole and the inner thread of the connecting hole through the external thread of the outer wall, thereby fixing the connecting plate (2) to the lower end of the base (5), and thus fixing the connecting column (3) to the lower end of the base (5). The connection between the connecting plate (2) and the threaded connection enhances the stability and convenience of the connection between the base (5) and the connecting column (3).

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