Fireproof transformation structure of excitation wire of coke oven coal charging car

Abstract

The utility model provides a fireproof transformation structure of an excitation wire of a coke oven coal charging car, which comprises the excitation wire, a plurality of waste oil pipes are sleeved on the outer side of the excitation wire, and when the number of the waste oil pipes is more than two, the adjacent waste oil pipes are connected and fixed through metal wires. A metal protection tube can be arranged at the position, needing to be further protected, of the excitation wire. According to the utility model, the excitation wire on the coke oven coal charging car is subjected to fireproof modification, so that the fireproof, fire-resistant and high-temperature-resistant performance of the excitation wire can be obviously improved, and the excitation wire can stably operate in complex environments such as severe high temperature, dust, toxic and harmful gas, frequent movement and the like of the coke oven; the shutdown event of the coal charging car caused by the fault of the excitation wire is effectively reduced, so that the normal operation of the coal charging car is ensured, and the production of the coke oven can be efficiently, stably and continuously carried out.

Description

Technical Field

[0001] This utility model belongs to the field of electrical equipment protection technology, specifically relating to a fireproof modification structure for the excitation line of a coke oven charging car, which is suitable for fireproof modification of the excitation line in harsh working environments or similar operating environments of coke oven charging cars in coking plants. Background Technology

[0002] In the coal coking industry, the coke ovens of coal coking plants operate in extremely harsh environments, characterized by high temperatures, high dust levels, frequent relocation, and the presence of toxic and harmful gases. Under these severe conditions, the failure rate of electrical equipment remains consistently high, with coal loading cars exhibiting a particularly prominent failure rate among various types of electrical equipment.

[0003] The coal charging car, an indispensable and crucial component of the four main locomotives used in coke ovens, is a critical mobile electrical device. Its primary function is to precisely transport coal from the coal bunker into the coke oven and place it in the carbonization chamber for coking. Due to its operational characteristics, the coal charging car comes into direct contact with the open flames of the oven, resulting in operating temperatures reaching nearly 1000 degrees Celsius. This high-temperature environment poses a significant threat to the electrical system of the coal charging car. A malfunction in the electrical system would directly disrupt the normal production order of the coke oven, causing severe production delays and economic losses.

[0004] Regarding the current electrical protection of coal loading cars, the excitation line, as a crucial component of the excitation system, is typically protected by being wrapped with fireproof tape. However, this method has significant drawbacks in practical applications. Firstly, the quality of the fireproof tape varies greatly, making it difficult to maintain stable fire resistance under prolonged high temperatures and harsh environments. Secondly, the quality and effectiveness of the tape wrapping are compromised by various factors during operation, including worker experience and varying levels of responsibility, leading to issues with tightness and integrity. These combined factors significantly reduce the actual fireproofing effect of the tape, failing to effectively prevent damage to the excitation line from high temperatures, resulting in frequent burnouts. Frequent burnouts not only require substantial investment of manpower, resources, and time for frequent replacements, but also inevitably force the coke oven to halt or slow down production during replacements, severely reducing efficiency, increasing operating costs, and complicating production management. This has become a critical technical problem hindering efficient and stable coke oven production that urgently needs to be addressed. Utility Model Content

[0005] This utility model provides a fireproof modification structure for the excitation line of a coke oven charging car. By modifying the excitation line of the coke oven charging car for fireproofing, the fireproof, fire-resistant and high-temperature resistance performance of the excitation line can be significantly improved, enabling it to operate stably in the harsh environment of coke ovens with high temperature, dust, toxic and harmful gases and frequent movement. This effectively reduces charging car downtime caused by excitation line failure, thereby ensuring the normal operation of the charging car and ensuring that coke oven production can be carried out efficiently, stably and continuously.

[0006] The technical solution of this utility model to solve the technical problem is as follows:

[0007] This utility model provides a fireproof modification structure for the excitation line of a coke oven charging car, which includes an excitation line. Several waste oil pipes are sleeved on the outside of the excitation line. When there are more than two waste oil pipes, adjacent waste oil pipes are connected and fixed by metal wire.

[0008] As a further improvement to the technical solution of this application, the metal wire is made of iron wire, steel wire or copper wire.

[0009] As a further improvement to the technical solution of this application, the waste oil pipe is also provided with fireproof wrapping tape and tied with multiple metal cable ties.

[0010] As a further improvement to the technical solution of this application, the metal cable tie is made of iron wire, steel wire or copper wire.

[0011] As a further improvement to the technical solution of this application, the waste oil pipe is a high-temperature and high-pressure oil pipe with a steel wire interlayer.

[0012] As a further improvement to the technical solution of this application, it also includes several metal protective tubes, which are sleeved on the outside of the waste oil pipe.

[0013] As a further improvement to the technical solution of this application, the metal protective tube is a stainless steel square tube with several sets of connecting lugs symmetrically arranged on both sides.

[0014] Compared with the prior art, the fireproof modification structure of the excitation line of the coke oven charging car described in this utility model has the following beneficial effects:

[0015] (1) The present invention has a simple structure. By setting up waste oil pipes on the outside of the excitation line, it is not only convenient to obtain materials and carry out the modification, but also to reuse waste and effectively save maintenance costs. It can effectively block the conduction of heat and prevent high temperature from damaging the internal excitation line by utilizing the slow heat conduction and slow heat transfer of the waste oil pipes. It can ensure electrical safety by utilizing the good insulation properties of the waste oil pipes. It can provide better physical heat insulation and protection through the outer wall of the waste oil pipes with a certain thickness.

[0016] (2) This utility model can further enhance the protection of the excitation line in vulnerable areas by adding metal protective pipes at certain locations that require additional protection (such as the location where the excitation line is prone to burnout at the front of the coal loading car cover opening machine). The high temperature resistance and mechanical protection performance of the metal protective pipes can be utilized to further enhance the protection of the excitation line in vulnerable areas.

[0017] (3) This utility model can further enhance the fireproof and fire-resistant performance of the excitation line by adding a fireproof wrapping tape to the outside of the waste oil pipe.

[0018] (4) By fireproofing the excitation line, this utility model can effectively reduce the number of failures, thereby greatly reducing the workload of maintenance and repair personnel in repairing and replacing the excitation line, and significantly reducing labor intensity. At the same time, the overall equipment failure rate of the coal charging car is also significantly reduced, and its reliability and stability are significantly improved, which directly ensures that the coke oven production can proceed stably and smoothly, effectively avoiding production interruptions and delays caused by excitation line failures, and reducing various production losses caused by downtime maintenance. In addition, the excitation line of the modified coal charging car operates stably, completely changing the previous situation of frequent replacement of excitation lines, and greatly reducing the spare parts cost and operating cost of enterprises. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the fireproof modification structure of the excitation line of the coke oven charging car of this utility model (excluding the metal protective pipe and fireproof wrapping tape).

[0020] Figure 2 This is a schematic diagram of the fireproof modification structure of the excitation line of the coke oven charging car of this utility model (including fireproof wrapping).

[0021] Figure 3 This is a schematic diagram of the fireproof modification structure of the excitation line of the coke oven charging car of this utility model (including the metal protective pipe).

[0022] Figure 4 This is a cross-sectional schematic diagram of the fireproof modification structure of the excitation line of the coke oven charging car according to this utility model.

[0023] In the diagram: 1. Excitation wire; 2. Waste oil pipe; 3. Metal cable tie; 4. Metal protective tube; 41. Connecting lug; 5. Fireproof wrapping tape; 6. Metal wire. Detailed Implementation

[0024] 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 skilled in the art without creative effort are within the scope of protection of the present utility model. Unless otherwise defined, the technical or scientific terms used herein should have the ordinary meaning understood by those skilled in the art to which this disclosure pertains. The terms "upper," "lower," "left," "right," "front," and "back" used in the present patent application specification and claims are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship also changes accordingly. Words such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Any aspects not detailed in the present utility model are well-known technologies to those skilled in the art.

[0025] like Figures 1-4 As shown, this utility model discloses a fireproof modification structure for the excitation line of a coke oven charging car. It includes an excitation line 1, with several waste oil pipes 2 sleeved on the outer side of the excitation line 1. If there are more than two waste oil pipes 2, adjacent waste oil pipes 2 are connected and fixed by metal wires 6. In this embodiment, the waste oil pipes 2 must be selected to possess excellent characteristics such as slow heat conduction, poor heat transfer performance, good insulation, and a thick outer wall, making them suitable for high-temperature and high-pressure applications, such as hydraulic oil pipes with steel wire interlayers. The slow heat conduction and heat transfer properties of the waste oil pipes 2 effectively block heat conduction, preventing high temperatures from damaging the internal excitation line. Simultaneously, they possess good insulation properties to ensure electrical safety, and a certain thickness of outer wall provides better physical insulation and protection. During implementation, the waste oil pipes 2 are thoroughly cleaned to remove oil stains, impurities, and other substances that may affect their performance. After cleaning, the oil pipes are placed in a well-ventilated and dry environment to air dry. After the oil pipes have dried, carefully thread the excitation wire 1 through the treated waste oil pipe 2, ensuring that the wire moves smoothly without twisting or tangling. Secure the junctions of adjacent waste oil pipes 2 with metal wire 6 (made of iron, steel, or copper) to prevent gaps. After threading, accurately place the excitation wire, protected by the oil pipe, into the designated position on the excitation disk of the coal charging machine. Then, perform precise wiring according to standard electrical wiring specifications and requirements, ensuring secure connections and reliable electrical connections. This allows the excitation wire, protected by the waste oil pipe 2, to operate normally on the excitation disk, achieving stable power transmission and conversion, and providing power support for the operation of the coal charging car.

[0026] As a preferred implementation, in critical areas where excitation lines are prone to burnout in previous operations, such as the front section of the cover-opening machine, additional protective measures can be implemented. Specifically, a metal protective pipe 4 is fitted over the waste oil pipe 2 at each location requiring additional protection. Several sets of connecting lugs 41 are symmetrically arranged on both sides of the metal protective pipe 4, facilitating precise installation of the metal protective pipe 4 at the easily burnt-out location of the excitation line in the front section of the cover-opening machine using bolts, forming a protective channel. In this embodiment, the metal protective pipe 4 is preferably a stainless steel square tube. The high-temperature resistance and mechanical strength of the stainless steel square tube further enhance the protection of the excitation line in this high-temperature, high-risk area, effectively preventing direct impact and damage to the excitation line from flames, high-temperature airflows, and other adverse factors. This comprehensively improves the fire resistance and fire prevention capabilities of the excitation line throughout the entire working process, ensuring the stable and reliable operation of the coal car excitation line in the harsh environment of the coke oven.

[0027] To further enhance the protection of the excitation line, a fireproof wrapping tape 5 can be installed on the outside of the waste oil pipe 2. Multiple metal cable ties 3 are then tied to the outside of the fireproof wrapping tape 5. The metal cable ties 3 are preferably made of iron wire, steel wire, or copper wire. The fireproof wrapping tape 5 is also selected to have fire-resistant and high-temperature resistant properties, such as fireproof and high-temperature resistant fiberglass wrapping tape or self-adhesive fireproof tape.

Claims

1. A fireproof modification structure for the excitation line of a coke oven charging car, comprising an excitation line (1), characterized in that, Several waste oil pipes (2) are sleeved on the outside of the excitation line (1). When there are more than two waste oil pipes (2), adjacent waste oil pipes (2) are connected and fixed by metal wires (6).

2. The fireproof modification structure for the excitation line of a coke oven charging car according to claim 1, characterized in that, The metal wire (6) is made of iron wire, steel wire or copper wire.

3. The fireproof modification structure for the excitation line of a coke oven charging car according to claim 1, characterized in that, The waste oil pipe (2) is also equipped with fireproof wrapping tape (5) and multiple metal cable ties (3) on the outside.

4. The fireproof modification structure for the excitation line of a coke oven charging car according to claim 3, characterized in that, The metal cable tie (3) is made of iron wire, steel wire or copper wire.

5. The fireproof modification structure for the excitation line of a coke oven charging car according to claim 1, characterized in that, The waste oil pipe (2) is a high-temperature and high-pressure oil pipe with a steel wire interlayer.

6. The fireproof modification structure for the excitation line of a coke oven charging car according to any one of claims 1-5, characterized in that, It also includes several metal protective tubes (4), which are sleeved on the outside of the waste oil pipe (2).

7. The fireproof modification structure for the excitation line of a coke oven charging car according to claim 6, characterized in that, The metal protective tube (4) is a stainless steel square tube, and several sets of connecting lugs (41) are symmetrically arranged on both sides.

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