Self-baking electrode holder suspender insulation fixed connection device of yellow phosphorus furnace

Abstract

The utility model discloses an insulating fixed connecting device for a hanger rod of a self-baking type electrode holder of a yellow phosphorus furnace, which comprises an upper-layer insulating stainless steel plate and a lower-layer insulating stainless steel plate which are respectively welded with a stainless steel lifting lug to form a body. The lifting lug is hinged with the lifting sling chain and the self-baking type electrode holder suspender through a stainless steel pin shaft, a lifting lug HP-5 mica pad and a cotter pin respectively; and the middle HP-5 mica plate is fixed with the stainless steel plate through the double-end stud, the steel plate HP-5 mica pad, the spring washer and the nut to form an integral structure. According to the utility model, insulation, antimagnetic and anti-conduction are realized in a high-temperature smelting environment, an electric breakdown path is blocked, vibration impact is reduced through design, the structural stability is improved, and the maintenance cost is reduced. The service life of the device is remarkably prolonged, and equipment damage caused by electric conduction and vibration is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of smelting equipment process technology, and relates to an insulating and fixing connection device for the electrode holder rod of a yellow phosphorus furnace. Background Technology

[0002] Traditionally, the insulation of the self-baking electrode holder's suspension rod in yellow phosphorus furnace smelting often uses a porcelain insulator rod. This porcelain insulator rod connection device is mostly used in smelting furnaces such as submerged arc furnaces. The porcelain insulator is placed between the holder's connecting rod and the lifting chain, its function being to prevent magnetic and electrical conduction. In traditional steelmaking processes, the electrode holder needs to continuously move up and down during high-temperature smelting. Iron powder or air containing iron powder adhering to its surface is ionized, easily causing the porcelain insulator to conduct electricity instantaneously. Furthermore, the uneven force during the self-baking electrode holder's up-and-down movement results in significant impact on the material, potentially burning or damaging the device and causing shutdowns for maintenance. This structure has disadvantages such as susceptibility to damage due to the device itself and environmental factors, severe magnetic and electrical conductivity, a large number of replacements required, and high maintenance costs. However, these problems and disadvantages are limited to those addressed by this invention. Summary of the Invention

[0003] The purpose of this invention is to solve the problems in the prior art mentioned above, and to provide a hanging insulation and fixing connection device for a self-baking electrode holder in a yellow phosphorus furnace. This device is achieved through the following technical solution: a fixing connection device placed between the self-baking electrode holder's lifting rod and the lifting chain, including an upper insulating stainless steel plate, insulating stainless steel plate lifting lugs, and insulating pins connected to the lifting chain; a lower insulating stainless steel plate, insulating stainless steel plate lifting lugs, and insulating pins connected to the holder's lifting rod; and a middle layer of HP-5 mica plate, which is secured to the upper, middle, and lower layers using stainless steel double-ended studs, HP-5 mica washers, and special stainless steel nuts. This device ensures anti-magnetic and anti-conductive properties, reduces the impact on the lifting movement of the yellow phosphorus furnace electrode holder, extends its service life, and ensures safe and reliable operation.

[0004] To achieve the above objectives, the present invention employs the following technical solution:

[0005] An insulating and fixing connection device for a self-baking electrode holder in a yellow phosphorus furnace includes: an upper insulating stainless steel plate, a lower insulating stainless steel plate, an intermediate HP-5 mica plate, stainless steel double-ended studs, stainless steel nuts, spring washers, HP-5 mica pads for lifting lugs, HP-5 mica pads for steel plates, stainless steel pins, stainless steel cotter pins, and stainless steel lifting lugs; the upper and lower insulating stainless steel plates are welded to the stainless steel lifting lugs to form a whole; the upper insulating stainless steel plate is connected to a lifting chain via stainless steel pins, HP-5 mica pads for lifting lugs, and stainless steel cotter pins; the lower insulating stainless steel plate is connected to the self-baking electrode holder rod via stainless steel pins, HP-5 mica pads for lifting lugs, and stainless steel cotter pins; the intermediate HP-5 mica plate is fixedly connected to the upper and lower insulating stainless steel plates via stainless steel double-ended studs, HP-5 mica pads for steel plates, spring washers, and stainless steel nuts to form an integral structure. The welded body of the stainless steel lug and the insulating stainless steel plate is hinged to the chain or rod by a stainless steel pin, and the HP-5 mica pad of the lug is placed between the stainless steel pin and the stainless steel lug.

[0006] The upper and lower insulating stainless steel plates are made of heat-resistant stainless steel.

[0007] The HP-5 mica plate achieves a tight fit with the insulating stainless steel plate through the pre-tightening force of the stainless steel double-ended studs.

[0008] The stainless steel nut is a special anti-loosening nut, which, together with a spring washer, prevents the connection from loosening due to vibration.

[0009] The stainless steel pin and the stainless steel lug are provided with a lug HP-5 mica pad.

[0010] The overall structure of the device enables rapid replacement and maintenance of the HP-5 mica plate through a detachable connection method using stainless steel double-ended studs.

[0011] The size and shape of the stainless steel lifting lugs are adapted to the connection interface of the self-baking electrode holder rod and the lifting chain of the yellow phosphorus furnace.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] This device effectively blocks the conductive path and reduces the risk of electrical breakdown during high-temperature smelting by using a welded body of stainless steel lifting lugs and stainless steel plates, and an insulation design of HP-5 mica pads for the lifting lugs and HP-5 mica pads for the steel plates. At the same time, the detachable connection of the stainless steel double-ended studs simplifies the replacement and maintenance process of the HP-5 mica plates, significantly reducing maintenance costs.

[0014] During high-temperature smelting and the frequent lifting and lowering of the electrode holder, it achieves high-temperature and dustproof, as well as insulation, antimagnetic and anti-conductive properties, ensuring the rigidity and stability of the structure, reducing the number of damages, reducing burn-out losses, and extending its service life. This not only helps to improve the operating rate but also reduces maintenance costs. Attached Figure Description

[0015] Figure 1 Top view of the insulated connection device;

[0016] Figure 2 For along Figure 1 Sectional view of line AA in the middle;

[0017] Figure 3 For along Figure 1 Sectional view of the middle BB line;

[0018] Among them, stainless steel pin 1, lifting lug HP-5 mica washer 2, stainless steel cotter pin 3, stainless steel lifting lug 4, stainless steel double-ended stud 5, stainless steel nut 6, spring washer 7, steel plate HP-5 mica washer 8, HP-5 mica plate 9, and stainless steel plate 10. Detailed Implementation

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

[0020] See Figure 1 , Figure 2 and Figure 3 The main components of this utility model include: a stainless steel pin 1, a lifting lug HP-5 mica pad 2, a stainless steel cotter pin 3, a stainless steel lifting lug 4, a stainless steel double-ended stud 5, a stainless steel nut 6, a spring washer 7, a steel plate HP-5 mica pad 8, an HP-5 mica plate 9, and a stainless steel plate 10. The stainless steel plate 10 is welded from a heat-resistant stainless steel plate and a stainless steel lifting lug plate 4. The stainless steel pin 1, the lifting lug HP-5 mica pad 2, and the stainless steel cotter pin 3 are placed on the stainless steel lifting lug 4 and the stainless steel plate 10. The HP-5 mica plate 9 is fixed between the stainless steel plates 10. The HP-5 mica plate 9 and the stainless steel plate 10 are fixedly connected by the stainless steel double-ended stud 5, the steel plate HP-5 mica pad 8, the spring washer 7, and the stainless steel nut 6, forming a whole to fix and connect the handle rod and the lifting chain.

[0021] To address the issues of excessive vibration during the lifting and lowering of the electrode holder, as well as splashing and impact on the connecting devices during the smelting process, this invention welds the stainless steel lifting lug 4 and the stainless steel plate 10 into a single unit. This unit is then connected to the lifting chain and the holder rod via a stainless steel pin 1, an HP-5 mica pad 2, and a stainless steel cotter pin 3, ensuring structural rigidity.

[0022] To prevent magnetic and electrical conduction during high-temperature smelting and ensure the safe operation of the process, the HP-5 mica plate 9 of this invention is connected and fixed with a stainless steel plate and lifting lugs to achieve the effects of high-temperature and dust protection, as well as insulation, magnetic protection, and electrical conduction prevention.

[0023] To facilitate inspection and maintenance, the HP-5 mica plate 9, stainless steel plate, and lifting lugs of the device are connected and fixed by stainless steel double-ended studs 5, stainless steel nuts 6, spring washers 7, and HP-5 mica washers 8. Adjusting the stainless steel double-ended studs 5, stainless steel nuts 6, spring washers 7, and HP-5 mica washers 8 can enable quick replacement and maintenance of the HP-5 mica plate 9.

[0024] This device uses HP-5 mica plate 9 and stainless steel connecting components to be fixedly connected between the self-baking electrode holder rod and the lifting chain.

[0025] During installation, first assemble the upper stainless steel connecting assembly (including stainless steel pin 1, HP-5 mica pad 2 for lifting lugs, and stainless steel cotter pin 3) with the lifting chain, then assemble the HP-5 mica plate 9, and then install the lower stainless steel connecting assembly (including stainless steel pin 1, HP-5 mica pad 2 for lifting lugs, and stainless steel cotter pin 3). Next, install the stainless steel double-ended stud 5, the steel plate HP-5 mica pad 8, and the spring washer 7 in sequence, and fix them with the special stainless steel nut 6. Finally, assemble it with the self-baking electrode holder rod.

[0026] This fixed connection device can provide a strong connection and fastening effect between the self-baking electrode holder rod and the lifting chain of yellow phosphorus furnaces and electric arc furnaces of various tonnages. It is simple and convenient to install, inspect and maintain, and can be pre-tightened without special tools. Most importantly, it can prevent leakage and arcing accidents of connecting bolts and damage caused by excessive vibration during the high-temperature electric smelting process of yellow phosphorus furnaces and electric arc furnaces.

[0027] The above description is merely a preferred embodiment that embodies the technical principle of this utility model, and does not limit the scope of protection of this utility model. All equivalent changes and modifications made based on this utility model are within the patent scope covered by this utility model.

Claims

1. An insulating and fixing connection device for the hanging rod of a self-baking electrode holder in a yellow phosphorus furnace, characterized in that, include: The upper insulating stainless steel plate (10), the lower insulating stainless steel plate (10), the middle layer HP-5 mica plate (9), the stainless steel double-ended stud (5), the stainless steel nut (6), the spring washer (7), the lifting lug HP-5 mica pad (2), the steel plate HP-5 mica pad (8), the stainless steel pin (1), the stainless steel cotter pin (3), and the stainless steel lifting lug (4); the upper insulating stainless steel plate (10) and the lower insulating stainless steel plate (10) are respectively welded to the stainless steel lifting lug (4) to form a whole; the upper insulating stainless steel plate (10) is connected to the lifting chain through the stainless steel pin (1), the lifting lug HP-5 mica pad (2), and the stainless steel cotter pin (3); the lower insulating stainless steel plate (10) is connected to the self-baking electrode holder rod through the stainless steel pin (1), the lifting lug HP-5 mica pad (2), and the stainless steel cotter pin (3). The intermediate HP-5 mica plate (9) is fixedly connected to the upper and lower insulating stainless steel plates (10) by stainless steel double-headed studs (5), steel plate HP-5 mica pads (8), spring washers (7) and stainless steel nuts (6) to form an integral structure; the welded body of the stainless steel lug (4) and the insulating stainless steel plate (10) is hinged to the chain or rod by a stainless steel pin (1), and the lug HP-5 mica pad (2) is placed between the stainless steel pin (1) and the stainless steel lug (4).

2. The apparatus according to claim 1, characterized in that, The upper and lower insulating stainless steel plates (10) are made of heat-resistant stainless steel.

3. The apparatus according to claim 1, characterized in that, The HP-5 mica plate (9) is tightly bonded to the insulating stainless steel plate (10) by the pre-tightening force of the stainless steel double-ended stud (5).

4. The apparatus according to claim 1, characterized in that, The stainless steel nut (6) is a special anti-loosening nut, which, together with the spring washer (7), prevents the connection from loosening due to vibration.

5. The apparatus according to claim 1, characterized in that, The stainless steel pin (1) and the stainless steel lug (4) are provided with a lug HP-5 mica pad (2).

6. The apparatus according to claim 1, characterized in that, The overall structure of the device enables the rapid replacement and maintenance of the HP-5 mica plate (9) through the detachable connection of the stainless steel double-headed studs (5).

7. The apparatus according to claim 1, characterized in that, The size and shape of the stainless steel lifting lug (4) are adapted to the connection interface of the self-baking electrode holder rod and the lifting chain of the yellow phosphorus furnace.

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