Connecting and fixing device for silicon carbide rod of ladle dryer

Abstract

The utility model discloses a connecting and fixing device for a silicon carbide rod of a ladle dryer. A high-temperature-resistant insulator is additionally arranged at an opening in the middle of a double-helix silicon carbide rod; the stainless steel U-shaped clamp is made into a U shape according to the size of the silicon carbide rod, and the two ends extend outwards and are provided with holes. The wire connecting rod is welded at the outermost circle of the stainless steel U-shaped clamp; the conductive material is filler between the stainless steel U-shaped clamp and the silicon carbide rod; the fastening bolt fixes the tightness of the silicon carbide rod through adjustment to prevent unstable conduction caused by poor contact of the silicon carbide rod moving back and forth; the ceramic gasket penetrates through the fastening bolt and the opening of the stainless steel U-shaped clamp so as to isolate the fastening bolt from the stainless steel U-shaped clamp; the mica plate and the angle-shaped fixing piece play a role in fixing the silicon carbide rod and the stainless steel U-shaped clamp, holes are symmetrically formed in the mica plate, a junction pole welded to the stainless steel U-shaped clamp extends out of the holes of the mica plate to facilitate wiring, meanwhile, one end of the angle-shaped fixing piece is fixed to the mica plate, and the other end of the angle-shaped fixing piece is connected with the stainless steel U-shaped clamp through a fastening bolt.

Description

Technical Field

[0001] This utility model belongs to the field of silicon carbide rod technology, specifically relating to a connecting and fixing device for silicon carbide rods in a baking oven. Background Technology

[0002] In the atomization process for producing metal powder, solid metal materials are melted to form a molten metal or alloy, which is then poured into an intermediate ladle and slowly flows downwards. High-pressure water jets rapidly impact the ladle, forming small droplets that subsequently condense into solid powder, yielding the desired metal powder. However, directly pouring the high-temperature molten metal into the intermediate ladle can cause it to crack, necessitating preheating. Heating the intermediate ladle can be done using gaseous fuels or pulverized coal, but this process generates waste and pollutants, impacting the environment, and the heating efficiency is also low. To address this issue, a double-helix silicon carbide heating element can be used to heat the intermediate ladle. As a novel heating device, the spiral silicon carbide element has been widely applied in industrial manufacturing, heating processing, and chemical industries.

[0003] Spiral silicon carbide heating rods utilize electrical conductivity. These rods are made by mixing silicon and carbon in a specific ratio. Because silicon has high resistivity and carbon has high thermal conductivity, silicon carbide heating rods are highly efficient in electric heating. Conventional silicon carbide heating rods must be fixed to the appropriate heating equipment to function. Failure to properly connect and secure the rod to the heating equipment (battery dryer), excessively tight connections causing short circuits due to adhesion at the opening of the double-spiral silicon carbide rod, or loose connections leading to poor contact, arcing, and even burnt-out wires or broken rods, will render the silicon carbide rod unusable. Traditional silicon carbide rod connections involve directly connecting the wires to the built-in fastening bolts, which often results in unstable conductivity and excessive instantaneous current, burning out the rod. Furthermore, the original fastening bolts use insulating rubber washers, which age over time, leading to poor insulation and short circuits. Therefore, a reliable, safe, and long-life connection and fixing device is needed when using a bag dryer and silicon carbide heating rods together. Utility Model Content

[0004] This utility model provides a connecting and fixing device for a silicon carbide rod in a bag dryer, aiming to provide a reliable, safe, and long-life connecting and fixing device needed when the bag dryer and silicon carbide rod are used together.

[0005] Therefore, the present invention adopts the following technical solution:

[0006] It includes structures such as double-helix silicon carbide rods, high-temperature resistant insulators, stainless steel U-shaped clamps, connecting rods, conductive materials, fastening bolts, ceramic washers, mica plates, and angle fasteners.

[0007] A high-temperature resistant insulator is installed at the opening of the double-helix silicon carbide rod to prevent breakage due to uneven stress during tightening, or to prevent short circuits caused by adhesion at the opening of the double-helix silicon carbide rod. A stainless steel U-shaped clamp, custom-made to the size of the silicon carbide rod, extends outwards at both ends with holes for bolt fixing and locking. The wiring rod is welded to the outermost circle of the stainless steel U-shaped clamp, facilitating wiring while ensuring uniform conductivity within the clamp, preventing instantaneous poor conductivity and overheating that could burn out the wires or the entire silicon carbide rod system. The conductive material serves as filler between the stainless steel U-shaped clamp and the silicon carbide rod; it can be silver sheet, aluminum sheet, copper flat wire, high-temperature resistant conductive adhesive, or other conductive materials to ensure good contact between the stainless steel U-shaped clamp and the silicon carbide rod. To ensure conductivity and prevent poor contact, the fastening bolts and ceramic washers must be used together. The fastening bolts are ordinary connecting bolts, which are adjusted to tighten the silicon carbide rod, preventing it from moving back and forth and causing unstable conductivity. The ceramic washers are made of high-temperature resistant material and need to pass through the openings of the fastening bolts and stainless steel U-clamps. This is to isolate the fastening bolts and stainless steel U-clamps and prevent them from directly contacting each other, causing short circuits or arcing that could damage the clamps. The mica plate and angle fasteners are used to fix the silicon carbide rod and stainless steel U-clamps. The mica plate has symmetrical openings, allowing the wiring rods welded to the stainless steel U-clamps to extend out from the openings for wiring. At the same time, one end of the angle fastener is fixed to the mica plate, and the other end is connected to the stainless steel U-clamps with fastening bolts to prevent the stainless steel U-clamps from moving.

[0008] The beneficial effects of this utility model are as follows:

[0009] Using a mica plate as the base for load-bearing, the silicon carbide rod is placed on the mica plate and fixed with a stainless steel U-shaped clamp with a welded terminal rod. Angle-shaped fasteners then securely connect the clamp and the mica plate, ensuring a safe and reliable connection. This design facilitates wiring while ensuring uniform conductivity of the stainless steel U-shaped clamp. Installing ceramic washers on the fastening bolts effectively solves the problem of short circuits caused by poor insulation due to aging of the original rubber washers, and also prevents short circuits or arcing caused by direct contact between the clamps. High-temperature resistant insulators are added to the spiral opening of the silicon carbide rod, ensuring that the force on the rod is more even and stable when adjusting the fastening bolts, preventing it from wobbling or tipping over. This also avoids short circuits or damage to the silicon carbide rod caused by over-tightening and contact at the opening. Welding a terminal rod to the stainless steel U-shaped clamp facilitates connection and ensures uniform conductivity. Furthermore, filling the space between the stainless steel U-shaped clamp and the silicon carbide rod with conductive material further ensures stable, uniform, and reliable conductivity, extending the service life of the silicon carbide rod. Attached Figure Description

[0010] Figure 1 This is a cross-sectional view of the fixing device of this utility model;

[0011] Figure 2 This is a side view of the fixing device of this utility model;

[0012] In the diagram: 1. Double helical silicon carbide rod; 2. High-temperature resistant insulator; 3. Stainless steel U-shaped clamp; 4. Connecting rod; 5. Conductive material; 6. Fastening bolt; 7. Ceramic washer; 8. Mica plate; 9. Angle fastener. Detailed Implementation

[0013] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0014] like Figure 1 and 2 As shown, a connecting and fixing device for a silicon carbide rod in a drying oven includes a double-helix silicon carbide rod, a high-temperature resistant insulator 2, a stainless steel U-shaped clamp 3, a connecting rod 4, a conductive material 5, a fastening bolt 6, a ceramic washer 7, a mica plate 8, and an angled fixing component 9.

[0015] Installation and Usage: Symmetrical holes are drilled in the mica plate 8, and connecting rods 4 are welded onto a pair of stainless steel U-shaped clamps 3. The connecting rods 4 are passed through the holes in the mica plate 8. One end of the angled fixing piece 9 is fixed to the mica plate 8, and the other end is connected to the stainless steel U-shaped clamp 3 using a fastening bolt 6 with a ceramic washer 7. The other end is connected in the same way. After adding a high-temperature resistant insulator 2 to the double-helix silicon carbide rod 1, it is placed between the pair of stainless steel U-shaped clamps 3. Conductive material 5 is filled between the double-helix silicon carbide rod 1 and the stainless steel U-shaped clamp 3. The fastening bolts 6 are adjusted and tightened to ensure reliable and safe installation. This utility model device is reliable and convenient to install and use, and has wide applicability.

Claims

1. A connecting and fixing device for a silicon carbide rod in a bread drying machine, characterized in that, Includes double-helix silicon carbide rod (1), high-temperature resistant insulator (2), stainless steel U-shaped clamp (3), connecting rod (4), conductive material (5), fastening bolt (6), ceramic washer (7), mica plate (8) and angle fastener (9); A high-temperature resistant insulator (2) is installed at the middle opening of a double-helix silicon carbide rod (1); The stainless steel U-shaped clamp (3) is made into a U-shape according to the size of the silicon carbide rod (1), and both ends extend outward and have holes so that the silicon carbide rod (1) can be fixed and locked with bolts; the wire connecting rod is welded to the outermost circle of the stainless steel U-shaped clamp (3); The conductive material (5) is the filler between the stainless steel U-shaped clamp (3) and the silicon carbide rod (1). The fastening bolt (6) is adjusted to fix the silicon carbide rod (1) to prevent poor contact caused by the silicon carbide rod (1) moving back and forth, which would lead to unstable conductivity. The ceramic washer (7) passes through the opening of the fastening bolt (6) and the stainless steel U-shaped clamp (3) to isolate the fastening bolt (6) and the stainless steel U-shaped clamp (3). The mica plate (8) and the angle fastener (9) serve to fix the silicon carbide rod (1) and the stainless steel U-shaped clamp (3). The mica plate (8) has symmetrical holes, and the wiring rod (4) welded on the stainless steel U-shaped clamp (3) extends out from the holes of the mica plate (8) for wiring. At the same time, one end of the angle fastener (9) is fixed to the mica plate (8), and the other end is connected to the stainless steel U-shaped clamp (3) with fastening bolts (6).

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