High-temperature-resistant cable for converter slag car

Abstract

The utility model discloses a high temperature resistant cable for a converter slag car, which relates to the technical field of slag car cables and comprises a cable sheath and a cable copper core, the inner side and the outer side of the cable sheath are respectively provided with first sulfur fiber woven high temperature resistant paint and second sulfur fiber woven high temperature resistant paint, and the outer side of the first sulfur fiber woven high temperature resistant paint is provided with a protective layer. A strength reinforcing layer is arranged on the inner side of the second sulfur fiber woven high-temperature-resistant paint, a tensile steel wire is arranged in the cable copper core, an oxygen-free copper wire core is arranged on the outer side of the cable copper core, three insulating silicon rubber layers are arranged on the outer side of the oxygen-free copper wire core, and the insulating silicon rubber layers are arranged on the outer side of the cable copper core. And an oxygen-free copper wire core, a cable copper core and a tensile steel wire are sequentially arranged in each strand of insulating silicon rubber layer. According to the utility model, the original high-temperature-resistant cable of the slag car is modified, so that the fault of the slag car caused by cable damage is reduced, the labor intensity of workers and the maintenance cost of the cable are reduced, and the slag car runs stably.

Description

Technical Field

[0001] The utility model relates to the technical field of slag car cables, in particular to a high temperature resistant cable for a converter slag car. Background Art

[0002] The steel plant has two 120T converters, each of which is equipped with a slag car, which is used to transport the high-temperature liquid slag to the slag treatment position using a slag tank after the converter smelting is completed. During the operation of the slag car, a 3*50mm 2 The power supply cable moves with the car body to meet the process requirements. The power supply mode of the converter slag car is a heavy-weight cable drum, with a maximum running distance of about 70 meters. The cable is always in a taut state. In addition, during the slag receiving process, the steel slag overflows and can burn the cable, and the slag blocks falling from the furnace mouth can fall on the cable. At present, the slag car cable has the following problems:

[0003] First, when the cable drum is rolled up, it is squeezed and tightened, causing the cable core to break and the outer sheath to be worn, leading to slag truck failure;

[0004] Second, the steel slag overflows and burns the cables, and the slag blocks fall from the furnace mouth and damage the cables, causing the slag truck to malfunction;

[0005] Third, the cable replacement cycle is 2 months, and the maintenance cost is high.

[0006] Therefore, a high temperature resistant cable for converter slag vehicles is now provided. Utility Model Content

[0007] In view of the deficiencies in the prior art, the utility model provides a high-temperature resistant cable for a converter slag car. By modifying the original high-temperature resistant cable of the slag car, the slag car failure caused by cable damage is reduced, the labor intensity of workers and the cable maintenance costs are reduced, the slag car operation is stable, and the deficiencies in the prior art are overcome.

[0008] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0009] A high temperature resistant cable for converter slag vehicles comprises a cable sheath and a cable copper core, wherein a first fiber braid coated with a high temperature resistant paint and a second fiber braid coated with a high temperature resistant paint are respectively arranged on the inner and outer sides of the cable sheath, a protective layer is arranged on the outer side of the first fiber braid coated with a high temperature resistant paint, a strength reinforcement layer is arranged on the inner side of the second fiber braid coated with a high temperature resistant paint, tensile steel wire is added to the cable copper core, an oxygen-free copper wire core is arranged on the outer side of the cable copper core, and an insulating silicone rubber layer is arranged on the outer side of the oxygen-free copper wire core.

[0010] Preferably, the insulating silicone rubber layer is provided with three strands, and each insulating silicone rubber layer is sequentially provided with an oxygen-free copper wire core, a cable copper core and a tensile steel wire inside.

[0011] Preferably, the protective layer comprises an armored stainless steel wire braided outer sheath arranged on the outside of the first fiber braid coated with high temperature resistant paint.

[0012] Preferably, the strength reinforcement layer comprises a filling tensile-resistant hemp rope layer arranged between the second fiber braided layer coated with high-temperature resistant paint and the insulating silicone rubber layer.

[0013] Preferably, the gaps between the three insulating silicone rubber layers are filled with a tensile-resistant hemp rope layer.

[0014] Preferably, the cable sheath is made of a high temperature resistant flame retardant composite material, and the thickness of the cable sheath is greater than the thickness of the first braided fiber coated with high temperature resistant paint and the second braided fiber coated with high temperature resistant paint.

[0015] The beneficial effects of the utility model are:

[0016] By modifying the original high-temperature resistant cables of the slag trucks, we can reduce slag truck failures caused by cable damage, reduce workers' labor intensity and cable maintenance costs, and make the slag trucks run stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a schematic diagram of the cross-sectional structure of a high temperature resistant cable for converter slag vehicles.

[0018] Figure 2 The utility model proposes a high temperature resistant cable for converter slag vehicles. Figure 1 Enlarged structural diagram at A in the middle.

[0019] In the figure: 1. Cable sheath; 2. First fiber braid coated with high temperature resistant paint; 3. Filling tensile hemp rope layer; 4. Second fiber braid coated with high temperature resistant paint; 5. Cable copper core; 6. Armored stainless steel wire braided outer sheath; 7. Insulating silicone rubber layer; 8. Oxygen-free copper wire core; 9. Tensile steel wire. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Example 1, reference Figure 1-2A high temperature resistant cable for converter slag vehicle, comprising a cable sheath 1 and a cable copper core 5, characterized in that a first fiber braided coated with a high temperature resistant paint 2 and a second fiber braided coated with a high temperature resistant paint 4 are respectively arranged on the inner and outer sides of the cable sheath 1, a protective layer is arranged on the outer side of the first fiber braided coated with a high temperature resistant paint 2, a strength reinforcement layer is arranged on the inner side of the second fiber braided coated with a high temperature resistant paint 4, a tensile steel wire 9 is added to the cable copper core 5, an oxygen-free copper wire core 8 is arranged on the outer side of the cable copper core 5, and an insulating silicone rubber layer 7 is arranged on the outer side of the oxygen-free copper wire core 8;

[0022] The insulating silicone rubber layer 7 is provided with three strands, and each of the insulating silicone rubber layers 7 is provided with an oxygen-free copper wire core 8, a cable copper core 5 and a tensile steel wire 9 in sequence.

[0023] The protective layer includes an armored stainless steel wire braided outer sheath 6 arranged on the outside of the first fiber braided high temperature resistant paint 2;

[0024] The strength reinforcement layer includes a filling tensile hemp rope layer 3 arranged between the second fiber braided high temperature resistant paint 4 and the insulating silicone rubber layer 7, and the gap between the three insulating silicone rubber layers 7 is provided with a filling tensile hemp rope layer 3;

[0025] The cable sheath 1 is made of a high temperature resistant flame retardant composite material, and the thickness of the cable sheath 1 is greater than the thickness of the first fiber braided coated with high temperature resistant paint 2 and the second fiber braided coated with high temperature resistant paint 4.

[0026] Structural principle: In order to strengthen the tensile strength of the cable, the cable specification of the slag car is 3*50mm. 2 A 2.2mm diameter steel wire rope is added to each copper core, for a total of 3 wire ropes. The steel wire rope does not occupy the cross-sectional area of ​​the cable, which improves the tensile strength of the cable. For slag burns, extrusion and wear when the cable is curled, stainless steel wire is used outside the cable sheath to weave a layer of protective net because stainless steel wire has the characteristics of heat resistance, corrosion resistance, high strength and high hardness. To ensure the strength of the stainless steel woven net, considering the cost, weaving difficulty and cable weight, a steel wire with a diameter of 0.4mm is selected, and the weaving density is ≮97%, which can effectively protect the outer sheath of the cable, so that the slag car cable has the ability to resist smashing, scalding, wear and extrusion.

[0027] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A high temperature resistant cable for converter slag vehicles, comprising a cable sheath (1) and a cable copper core (5), characterized in that: The inner and outer sides of the cable sheath (1) are respectively provided with a first fiber braid coated with high temperature resistant paint (2) and a second fiber braid coated with high temperature resistant paint (4); the outer side of the first fiber braid coated with high temperature resistant paint (2) is provided with a protective layer; the inner side of the second fiber braid coated with high temperature resistant paint (4) is provided with a strength reinforcement layer; a tensile steel wire (9) is added to the cable copper core (5); an oxygen-free copper wire core (8) is provided on the outer side of the cable copper core (5); and an insulating silicone rubber layer (7) is provided on the outer side of the oxygen-free copper wire core (8).

2. A high temperature resistant cable for converter slag vehicles according to claim 1, characterized in that: The insulating silicone rubber layer (7) is provided with three strands, and each insulating silicone rubber layer (7) is provided with an oxygen-free copper wire core (8), a cable copper core (5) and a tensile steel wire (9) in sequence.

3. The high temperature resistant cable for converter slag vehicles according to claim 1, characterized in that: The protective layer comprises an armored stainless steel wire braided outer sheath (6) arranged on the outside of the first fiber braided layer coated with high temperature resistant paint (2).

4. A high temperature resistant cable for converter slag vehicles according to claim 2, characterized in that: The strength reinforcement layer comprises a filling tensile-resistant hemp rope layer (3) arranged between the second fiber braided layer coated with high-temperature resistant paint (4) and the insulating silicone rubber layer (7).

5. A high temperature resistant cable for converter slag vehicles according to claim 4, characterized in that: The gaps between the three insulating silicone rubber layers (7) are filled with a tensile-resistant hemp rope layer (3).

6. The high temperature resistant cable for converter slag vehicles according to claim 1, characterized in that: The cable sheath (1) is made of a high temperature resistant flame retardant composite material, and the thickness of the cable sheath (1) is greater than the thickness of the first braided fiber coated with high temperature resistant paint (2) and the second braided fiber coated with high temperature resistant paint (4).

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