A silicon smelting furnace burner

Abstract

The utility model relates to the technical field of burning through device, specifically disclose a kind of industrial silicon smelting furnace burning through device;Including water-cooled main body, water-cooled contact ring, electrode telescopic device and handle, water-cooled main body is hollow structure, and water-cooled contact ring is fixedly arranged at water-cooled main body front end, and water-cooled contact ring inside is hollow structure, and the inner chamber of water-cooled contact ring is communicated with the inner chamber of water-cooled main body, and water outlet is arranged in the back side of water-cooled contact ring, and water outlet is connected with backwater pipe, and electrode telescopic device is fixedly arranged on water-cooled main body, the back side of water-cooled contact ring, and handle is fixedly connected at the rear end of water-cooled main body. By being equipped with water-cooled main body and water-cooled contact ring, water-cooled contact ring on the backwater pipe composition water-cooled circuit is overall cooling, utilize water flow as overall cooling when large current burns through and opens furnace eye, simultaneously being equipped with electrode telescopic device, electrode telescopic is controlled using the rotation of friction wheel, and manual adjustment is not needed.

Description

Technical Field

[0001] This utility model relates to the field of burn-through device technology, and in particular to a burn-through device for an industrial silicon smelting furnace. Background Technology

[0002] In the industrial silicon smelting process, a burn-through device is needed to open the furnace eye when the molten silicon is tapped out of the furnace. A traditional burn-through device typically consists of a carbon rod electrode, conductive components (such as a clamping cylinder and busbar), a handle, and a cooling system (such as a water-cooled cable). The carbon rod electrode is fixed to the front end of the burn-through device by a clamping device. The conductive components transmit high-voltage current to the carbon rod, causing an electric arc to be generated between it and the refractory material of the furnace wall. The high temperature (up to 2000℃ or higher) is used to burn through the furnace eye.

[0003] The carbon rod electrode needs to extend a certain length beyond the front clamping cylinder of the burn-through device to prevent the clamping cylinder from being damaged by the high temperature at the front end of the carbon rod electrode. The carbon rod electrode is a consumable, and after several uses, the front end length will shorten, requiring manual adjustment of the carbon rod electrode's clamping position. In the existing technology, the clamping cylinder and the adjusting carbon rod are fixed by iron wedges. The iron wedges are inserted into the gap between the carbon rod and the clamping cylinder to squeeze and fix the carbon rod. During the adjustment process, the iron wedges need to be knocked out in the opposite direction first, and then the iron wedges need to be knocked and squeezed tight after adjusting to the appropriate length, which is very inconvenient. Furthermore, the carbon rod electrode will have indentations left by the iron wedges after being knocked and squeezed. If the front end of the carbon rod electrode is subjected to force, it is easy to break at the indentation, causing the entire carbon rod electrode to be scrapped, increasing the cost of use. Utility Model Content

[0004] The purpose of this invention is to provide a straw-soil separation device to solve the problems existing in the prior art.

[0005] This utility model is implemented by the following technical solution: an industrial silicon smelting furnace burn-through device, including a water-cooled body, a water-cooled contact ring, an electrode telescopic device, and a handle. The water-cooled body has a hollow structure. A water-cooled contact ring is fixedly provided at the front end of the water-cooled body. The interior of the water-cooled contact ring has a hollow structure and the inner cavity of the water-cooled contact ring is connected to the inner cavity of the water-cooled body. A water outlet is provided on the rear side of the water-cooled contact ring and is connected to a return water pipe. An electrode telescopic device is fixedly provided on the water-cooled body and on the rear side of the water-cooled contact ring. A handle is fixedly connected to the rear end of the water-cooled body. The handle is fixedly connected to the water-cooled body through an insulating flange assembly. A terminal block is fixedly provided on the water-cooled body.

[0006] Furthermore, a contact brush is installed inside the water-cooled contact ring. The contact brush includes a conductive ring and elastic brush pieces arranged circumferentially along the conductive ring.

[0007] Furthermore, reinforcing ribs are fixedly provided on the water-cooled main body.

[0008] Furthermore, the electrode telescopic device includes an electrode collar, friction wheels, a worm gear, a worm, a transmission rod, and a crank handle; an electrode collar is provided on the rear side of the water-cooled contact ring, and three friction wheels are provided circumferentially on the electrode collar, one of which is coaxially connected to the worm gear. A worm is rotatably mounted on the electrode collar, and the worm meshes with the worm gear for transmission. A transmission rod is fixedly mounted on the rear side of the worm, and the transmission rod is arranged parallel to the water-cooled main body. A crank handle is fixedly mounted on the rear end of the transmission rod.

[0009] Furthermore, the insulating flange assembly includes a first flange, a second flange, an insulating partition, an insulating sleeve, bolts, nuts, and insulating gaskets. The first flange is fixedly connected to the water-cooling body, and the second flange is fixedly connected to the handle. An insulating partition is provided between the first flange and the second flange. An insulating sleeve is inserted into the bolt holes of the first flange and the second flange, and a bolt is inserted into the insulating sleeve. The bolt passes through the first flange and the second flange in sequence and is threaded with a nut. Insulating gaskets are provided between the first flange and the bolt and between the second flange and the nut, respectively.

[0010] Furthermore, it also includes a trolley, a slide rail, an iron chain, and an insulator. The slide rail is fixedly installed around the smelting furnace, and a trolley slides on the slide rail. Two sections of iron chain are installed below the trolley, and an insulator is installed between the two sections of iron chain. The bottom of the lower iron chain is connected to the reinforcing rib plate of the water-cooled main body.

[0011] Furthermore, several hanging holes are provided on the reinforcing rib plate, and the iron chain passes through any one of the hanging holes to connect with the reinforcing rib plate.

[0012] The advantages of this utility model are: by providing a water-cooled main body and a water-cooled contact ring, a water-cooled circuit is formed with the return water pipe on the water-cooled contact ring to cool the whole body. When the furnace hole is burned through by a large current, the water flow is used to cool the whole body. At the same time, an electrode extension device is provided, which uses the rotation of the friction wheel to control the extension of the electrode without manual adjustment. Meanwhile, the worm gear structure of the transmission has a mechanical self-locking effect, which can fix the carbon rod electrode without the need for other mechanical locking structures. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a cross-sectional view of the water-cooled body and the water-cooled contact ring.

[0015] Figure 3 A partial structural cross-sectional view of the water-cooled contact ring.

[0016] Figure 4 This is a schematic diagram of a partial structure at the electrode collar.

[0017] Figure 5 This is a schematic diagram of a partial structure at the crank handle.

[0018] Figure 6 Exploded view of the insulating flange assembly.

[0019] In the diagram: 1. Water-cooled main body; 2. Water-cooled contact ring; 3. Electrode telescopic device; 4. Handle; 5. Insulating flange assembly; 6. Terminal block; 7. Trolley; 8. Slide rail; 9. Iron chain; 10. Insulator; 11. Carbon rod electrode; 10. Reinforcing rib plate; 101. Dry hanging hole; 102. Water outlet; 201. Water return pipe; 202. Contact brush; 203. Conductive ring; 2031. Elastic brush plate; 2032. Electrode collar; 301. Friction wheel; 302. Worm gear; 303. Worm; 304. Transmission rod; 305. Crank handle; 306. First flange; 501. Second flange; 502. Insulating partition; 503. Insulating sleeve; 504. Bolt; 505. Nut; 506. Insulating gasket; 507. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0021] like Figure 1The following describes a burn-through device for an industrial silicon smelting furnace: a water-cooled body 1, a water-cooled contact ring 2, an electrode telescopic device 3, and a handle 4. The water-cooled body 1 is a hollow structure made of tubing made of materials such as phosphor bronze or beryllium copper, and contains cooling water for cooling. A reinforcing rib 101 is fixedly mounted on the water-cooled body 1. Because the water-cooled body 1 needs to be made of a metal with high conductivity, the material is relatively soft, necessitating the addition of the reinforcing rib 101 to ensure overall strength. A water-cooled contact ring 2 is fixedly mounted at the front end of the water-cooled body 1, integrally welded to the water-cooled body 1. The contact ring 2 is made of a material with low resistivity, such as copper or phosphor bronze, and is used for contacting and conducting electricity with the carbon rod electrode 11 at the front end. The interior of the water-cooled contact ring 2 is hollow, and its inner cavity communicates with the inner cavity of the water-cooled body 1. Cooling water flows from the water-cooled body 1 into the water-cooled contact ring 2. A vent is located at the rear side of the water-cooled contact ring 2. A water outlet 201 is provided, which is connected to a return water pipe 202. Cooling water flows through the water-cooled contact ring 2 and returns from the water outlet 201, then returns to the circulating water system through the return water pipe 202. During operation, the circulating water system continuously supplies water to the water-cooled main body 1 for cooling and protection of the components from high temperature damage. An electrode telescopic device 3 is fixedly provided on the water-cooled main body 1 and behind the water-cooled contact ring 2. The electrode telescopic device 3 mainly serves to fix the carbon rod electrode 11. A handle 4 is fixedly connected to the rear end of the water-cooled main body 1. The operator needs to hold the handle 4 during operation. The handle 4 is fixedly connected to the water-cooled main body 1 through an insulating flange assembly 5. A terminal block 6 is fixedly provided on the water-cooled main body 1. One pole of the power supply cable for the burn-through device is connected to the terminal block 6, and the other pole is the furnace eye of the smelting furnace. The carbon rod electrode 11 is conductive to the electrode connected to the burn-through device. When it contacts the furnace eye, a short circuit occurs, generating high temperature and burning through the furnace eye. The insulating flange assembly 5 is used to isolate and insulate the energized water-cooled body 1 from the handle 4, protecting the operator from electric shock.

[0022] In addition, the main body of the burn-through device is quite heavy, so it is also equipped with a trolley 7, a slide rail 8, an iron chain 9, and an insulator 10. The slide rail 8 is fixedly installed around the smelting furnace, and the trolley 7 slides on the slide rail 8. Below the trolley 7 are two sections of iron chain 9, with an insulator 10 between the two sections of iron chain 9. The bottom of the lower iron chain 9 is connected to the reinforcing rib plate 101 of the water-cooled main body 1. The water-cooled main body 1 is hung below the slide rail 8 of the smelting furnace, and the insulator 10 is used to insulate against the slide rail 8 to prevent short circuits.

[0023] like Figure 2 , Figure 3As shown: A contact brush 203 is installed inside the water-cooled contact ring 2. The contact brush 203 includes a conductive ring 2031 and an elastic brush piece 2032 arranged circumferentially along the conductive ring 2031. The conductive ring 2031 is tightly connected to the inside of the water-cooled contact ring 2 to reduce resistance and improve conductivity. The elastic brush piece 2032 contacts the carbon rod electrode 11 and has a certain elasticity to maintain a tight state with the carbon rod electrode 11, thereby improving the conductivity between the contact brush 203 and the carbon rod electrode 11, reducing contact resistance, and reducing heat generation at the contact position. Generally, multiple contact brushes 203 need to be installed in the water-cooled contact ring 2 to ensure the stability of the connection.

[0024] like Figure 4 , Figure 5 As shown: The electrode telescopic device 3 includes an electrode collar 301, friction wheels 302, a worm gear 303, a worm 304, a transmission rod 305, and a crank handle 306. An electrode collar 301 is located behind the water-cooled contact ring 2. Three friction wheels 302 are circumferentially arranged on the electrode collar 301. The three friction wheels 302 are tightly fitted with the carbon rod electrode 11. The friction wheels 302 can be made of pure copper, which is relatively soft. The friction wheels 302 have several horizontal raised grooves on the surface that mates with the carbon rod electrode 11. The surface of the friction wheel 302 that contacts the carbon rod electrode 11 is concave, increasing the contact area and allowing the friction wheel 302 to... The carbon rod electrode 11 is tightly held and fixed without damaging the friction wheel 302. When the friction wheel 302 rotates, it can drive the carbon rod electrode 11 to extend and retract. One of the friction wheels 302 is coaxially connected to the worm gear 303. When one friction wheel 302 rotates, it will drive the carbon rod electrode 11 to move. Subsequently, the other two friction wheels 302 will also rotate. A worm 304 is rotatably installed on the electrode collar 301. The worm 304 is meshed with the worm gear 303 for transmission. A transmission rod 305 is fixedly installed on the rear side of the worm 304. The transmission rod 305 is set parallel to the water-cooled body 1. A rocker handle 306 is fixedly installed at the rear end of the transmission rod 305. During normal operation, the carbon rod electrode 11 needs to be fixed in place. The worm 304 has a mechanical self-locking effect on the worm wheel 303. The carbon rod electrode 11 will not move unless the crank handle 306 is turned manually. When the length of the water-cooled contact ring 2 protruding from the front end of the carbon rod electrode 11 is too short and the length needs to be adjusted, the crank handle 306 can be turned. The crank handle 306 drives the worm 304 and the worm wheel 303 to rotate through the transmission rod 305, thereby driving the carbon rod electrode 11 to move forward and extend.

[0025] like Figure 6As shown: The insulating flange assembly 5 includes a first flange 501, a second flange 502, an insulating partition 503, an insulating sleeve 504, bolts 505, nuts 506, and insulating gaskets 507. The first flange 501 is fixedly connected to the water-cooling body 1, and the second flange 502 is fixedly connected to the handle 4. An insulating partition 503 is provided between the first flange 501 and the second flange 502. An insulating sleeve 504 is inserted into the bolt holes of the first flange 501 and the second flange 502, and a bolt 505 is inserted into the insulating sleeve 504. The bolt 505 passes through the first flange 501 and the second flange 502 in sequence and is threadedly connected to a nut 506. Insulating gaskets 507 are provided between the first flange 501 and the bolt 505 and between the second flange 502 and the nut 506. Each insulating partition 503, insulating sleeve 504, and insulating gasket 507 is made of high-temperature resistant mica insulating gasket.

[0026] Several hanging holes 102 are provided on the reinforcing rib plate 101, and the iron chain 9 passes through any one of the hanging holes 102 to connect with the reinforcing rib plate 101. The appropriate hanging hole 102 can be selected according to the working position and angle of the burn-through device.

[0027] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "front", "rear", "top", "bottom", "left", "right", "vertical", "horizontal", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

Claims

1. A burn-through device for an industrial silicon smelting furnace, characterized in that, The device includes a water-cooled body (1), a water-cooled contact ring (2), an electrode telescopic device (3), and a handle (4). The water-cooled body (1) is a hollow structure. A water-cooled contact ring (2) is fixedly provided at the front end of the water-cooled body (1). The interior of the water-cooled contact ring (2) is a hollow structure. The inner cavity of the water-cooled contact ring (2) is connected to the inner cavity of the water-cooled body (1). A water outlet (201) is provided on the rear side of the water-cooled contact ring (2). The water outlet (201) is connected to the return water pipe (202). An electrode telescopic device (3) is fixedly provided on the water-cooled body (1) and on the rear side of the water-cooled contact ring (2). A handle (4) is fixedly connected to the rear end of the water-cooled body (1). The handle (4) is fixedly connected to the water-cooled body (1) through an insulating flange assembly (5). A terminal block (6) is fixedly provided on the water-cooled body (1).

2. The burn-through device for an industrial silicon smelting furnace according to claim 1, characterized in that, A contact brush (203) is installed inside the water-cooled contact ring (2). The contact brush (203) includes a conductive ring (2031) and an elastic brush piece (2032) arranged circumferentially along the conductive ring (2031).

3. The burn-through device for an industrial silicon smelting furnace according to claim 1, characterized in that, A reinforcing rib (101) is fixedly provided on the water-cooled body (1).

4. The burn-through device for an industrial silicon smelting furnace according to claim 2, characterized in that, The electrode telescopic device (3) includes an electrode collar (301), a friction wheel (302), a worm gear (303), a worm (304), a transmission rod (305), and a crank handle (306). An electrode collar (301) is provided on the rear side of the water-cooled contact ring (2). Three friction wheels (302) are provided on the electrode collar (301) along the circumferential direction. One of the friction wheels (302) is coaxially connected with the worm gear (303). A worm (304) is rotatably installed on the electrode collar (301). The worm (304) is meshed with the worm gear (303) for transmission. A transmission rod (305) is fixedly installed on the rear side of the worm (304). The transmission rod (305) is set parallel to the water-cooled body (1). A crank handle (306) is fixedly installed at the rear end of the transmission rod (305).

5. The burn-through device for an industrial silicon smelting furnace according to claim 2, characterized in that, The insulating flange assembly (5) includes a first flange (501), a second flange (502), an insulating partition (503), an insulating sleeve (504), a bolt (505), a nut (506), and an insulating gasket (507). The first flange (501) is fixedly connected to the water-cooled body (1), and the second flange (502) is fixedly connected to the handle (4). An insulating partition (503) is provided between the first flange (501) and the second flange (502). An insulating sleeve (504) is inserted into the bolt holes of the first flange (501) and the second flange (502). A bolt (505) is inserted into the insulating sleeve (504). The bolt (505) passes through the first flange (501) and the second flange (502) in sequence and is threaded with a nut (506). An insulating gasket (507) is provided between the first flange (501) and the bolt (505) and between the second flange (502) and the nut (506).

6. A burn-through device for an industrial silicon smelting furnace according to any one of claims 1-5, characterized in that, It also includes a trolley (7), a slide rail (8), an iron chain (9) and an insulator (10). The slide rail (8) is fixedly installed around the smelting furnace. The trolley (7) slides on the slide rail (8). Two sections of iron chain (9) are provided below the trolley (7). An insulator (10) is provided between the two sections of iron chain (9). The bottom of the lower iron chain (9) is connected to the reinforcing rib plate (101) of the water-cooled main body (1).

7. The burn-through device for an industrial silicon smelting furnace according to claim 6, characterized in that, Several hanging holes (102) are provided on the reinforcing rib plate (101), and the iron chain (9) passes through any one of the hanging holes (102) and connects to the reinforcing rib plate (101).

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