CN216212432U - Supply fire-proof explosion-proof comprehensive wiring for coal mine - Google Patents
Supply fire-proof explosion-proof comprehensive wiring for coal mine Download PDFInfo
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- CN216212432U CN216212432U CN202122754111.XU CN202122754111U CN216212432U CN 216212432 U CN216212432 U CN 216212432U CN 202122754111 U CN202122754111 U CN 202122754111U CN 216212432 U CN216212432 U CN 216212432U
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Abstract
The utility model discloses a coal mine support fire-proof and explosion-proof comprehensive wiring, which sequentially comprises a cable core, a fire-proof layer, a metal explosion-proof layer, a fire-proof layer, an anti-interference layer and an outer sheath from inside to outside; the cable core consists of an insulating wire core, a communication or optical fiber unit, a filling layer and a supply channel; at least two insulated wire cores are arranged and are composed of conductors and insulating layers; the insulating layer is of a composite insulating structure, the inner insulation is formed by winding a ceramic fire-resistant belt, and the outer insulation is formed by extruding and wrapping cross-linked polyethylene; wherein, the feeding channel is a cylindrical pipeline processed by food-grade plastics or food-grade metals. The underground power supply system has excellent fireproof performance, flame retardant performance, explosion-proof performance and a supply function, is safe and environment-friendly, ensures the normal operation of the underground power supply system and the normal operation of the signal system, simultaneously ensures the smoothness of a supply channel of trapped people, and ensures the life safety of the trapped people.
Description
The technical field is as follows:
the utility model relates to a fireproof and explosion-proof cable, in particular to a coal mine support fireproof and explosion-proof comprehensive wiring, and belongs to the field of coal mine cables.
Background art:
the coal industry refers to an industry mainly based on coal resource exploitation, and the industry is one of main sources of national energy and one of important pillars of national economy. In the global coal mining industry, coal mine accidents frequently reported by media include gas explosion accidents, coal dust explosion accidents, fire accidents, water inrush or water permeation accidents, caving roof collapse and other ground pressure disaster accidents, poisoning, suffocation accidents, underground irrigation and the like.
Therefore, the research and development of the comprehensive wiring for supplying fire resistance and explosion resistance for the coal mine, which has the advantages of fire resistance, flame retardance, explosion resistance and a supplying function, is imperative.
The utility model has the following contents:
the technical problem to be solved by the utility model is as follows: the shortcomings of the prior art are overcome, the support fire-proof and explosion-proof comprehensive wiring for the coal mine is provided, the cable has excellent fire resistance, flame resistance, explosion resistance and support function, safety and environmental protection are achieved, normal operation of an underground power supply system and normal operation of a signal system are guaranteed, meanwhile, the support channel of trapped people is guaranteed to be smooth, and therefore life safety of the trapped people is guaranteed.
The technical scheme adopted by the utility model for solving the technical problem is as follows:
a coal mine support fire-proof explosion-proof comprehensive wiring comprises a cable core, a fire-proof layer, a metal explosion-proof layer, a fire-proof layer, an anti-interference layer and an outer sheath in sequence from inside to outside; the cable core consists of an insulating wire core, an optical fiber unit, a filling layer and a feeding channel; at least two insulated wire cores are arranged and are composed of conductors and insulating layers; the insulating layer is of a composite insulating structure, the inner insulation is formed by winding a ceramic fire-resistant belt, and the outer insulation is formed by extruding and wrapping cross-linked polyethylene; the optical fiber unit and the feeding channel are 1.
A coal mine support fire-proof explosion-proof comprehensive wiring comprises a cable core, a fire-proof layer, a metal explosion-proof layer, a fire-proof layer, an anti-interference layer and an outer sheath in sequence from inside to outside; the cable core consists of an insulating wire core, a communication unit, a filling layer and a feeding channel; at least two insulated wire cores are arranged and are composed of conductors and insulating layers; the insulating layer is of a composite insulating structure, the inner insulation is formed by winding a ceramic fire-resistant belt, and the outer insulation is formed by extruding and wrapping cross-linked polyethylene; the number of the communication units is at least two, and each communication unit consists of a signal wire core and a signal shielding layer; the number of the feeding channels is 1.
The signal shielding layer is composed of a copper strip or a braided copper strip.
The conductor is formed by twisting a plurality of monofilament wires or a single solid wire, and the wire is processed by copper, tin-plated copper, nickel-plated copper, aluminum or aluminum alloy material; when the cross section of the cable is 10mm2When the conductor is formed by twisting a plurality of monofilament wires, the conductor needs to be compressed when twisted, and the gaps among the monofilaments are reduced; when the cross section of the cable is 6mm2And when the conductor is below, the conductor is formed by a single solid wire.
The filling layer is an environment-friendly flame-retardant filling rope, and the environment-friendly flame-retardant filling rope is formed by processing glass fiber ropes, inorganic paper ropes or other environment-friendly high flame-retardant materials.
The feeding channel is a cylindrical pipeline processed by food-grade plastics or food-grade metals.
The fireproof layer is formed by lapping ceramic fireproof tapes or mica tapes in an overlapping mode.
The metal explosion-proof layer is formed by wrapping a copper strip or a copper-plastic composite strip.
The fire barrier layer is processed by adopting ceramic polyolefin or fireproof mud.
The anti-interference layer is formed by wrapping an aluminum alloy belt or a copper belt.
The outer sheath is made of low-smoke halogen-free flame-retardant polyolefin material.
The utility model has the following positive beneficial effects:
1. in the utility model, the conductor is formed by twisting a plurality of monofilament wires or a single solid wire, and the wire is processed by copper, tin-plated copper, nickel-plated copper, aluminum or aluminum alloy material; when the cross section of the cable is 10mm2In the above process, the conductor is formed by twisting a plurality of single-wire conducting wires, and the wires are required to be compressed during twisting, so that the gaps among the single wires are reduced; when the cross section of the cable is 6mm2And when the conductor is below, the conductor is formed by a single solid wire.
2. The insulating layer of the utility model adopts a composite insulating structure, the inner insulating layer is formed by winding a ceramic fire-resistant belt, the ceramic fire-resistant belt can adapt to the continuous use environment temperature of (-60-200) DEG C, and can be statically used at the high temperature of (350-3000) DEG C.
3. The communication or optical fiber unit is respectively composed of communication units or optical fiber units, at least two communication units are provided, each communication unit is composed of a signal wire core and a signal shielding layer, and the signal wire core is a core piece for guaranteeing underground and aboveground communication when an underground accident happens, so that convenience is provided for rescue; the signal shielding layer is a core component for protecting the communication cable from electromagnetic interference of a cable phase line.
4. The fireproof layer is formed by lapping ceramic fireproof tapes or mica tapes in an overlapping manner.
5. The fire barrier layer is processed by ceramic polyolefin or fireproof mud, is matched with the fireproof layer and the inner insulating layer for use, and ensures that a circuit is completely electrified after the cable is supplied with fire at the fire resistance temperature of 950-1000 ℃ for 180min and cooled for 15 min; after the fire-resistant temperature of the cable reaches 950-1000 ℃, fire is supplied for 120min and water is sprayed for 15min, the circuit is completely electrified; the cable is heated to 950-1000 ℃ and mechanically vibrated for 120min, and the circuit is completely electrified.
6. The oxygen supply channel is a cylindrical pipeline which is processed by food-grade plastics or food-grade metals, is a core component for conveying oxygen, normal saline, liquid food and the like to the underground from the underground when an accident happens underground, and is the key for guaranteeing the life of people trapped in the underground.
7. The metal explosion-proof layer and the anti-interference layer are matched for use, so that the requirement that the cable reaches the explosion-proof performance is met under the condition that the cable is not interfered by the outside; the anti-interference layer simultaneously has the advantages of protecting the cable from mechanical damage and preventing mice from biting.
8. According to the utility model, the filling layer is arranged between the insulating wire core and the fireproof layer, the filling layer is the environment-friendly flame-retardant filling rope, and the environment-friendly flame-retardant filling rope is formed by processing the glass fiber rope, the inorganic paper rope or other environment-friendly high flame-retardant materials, so that the roundness of the cross section of the cable is ensured, and the flame retardant property of the cable is improved.
9. The outer sheath is made of low-smoke halogen-free flame-retardant polyolefin materials, is used in cooperation with the fire insulating layer, the filling layer and the fireproof layer, and is the core for ensuring the flame retardance of the cable.
10. The underground power supply system has excellent fireproof performance, flame retardant performance, explosion-proof performance and a supply function, is safe and environment-friendly, ensures the normal operation of the underground power supply system and the normal operation of the signal system, simultaneously ensures the smoothness of a supply channel of trapped people, and ensures the life safety of the trapped people.
Description of the drawings:
FIG. 1 is a schematic structural view of example 1 of the present invention;
FIG. 2 is a schematic structural view of example 2 of the present invention
The specific implementation mode is as follows:
the utility model will be further explained and explained with reference to the drawings, in which:
example 1: referring to fig. 1, the supporting fire-proof and explosion-proof comprehensive wiring for the coal mine sequentially comprises a cable core, a fire-proof layer 6, a metal explosion-proof layer 7, a fire-proof layer 8, an anti-interference layer 9 and an outer sheath 10 from inside to outside; the cable core consists of an insulating wire core, an optical fiber unit 3a, a filling layer 4 and a feeding channel 5; at least two insulated wire cores are arranged and are composed of a conductor 1 and an insulating layer 2; wherein, the insulating layer 2 adopts a composite insulating structure, the inner insulation is formed by winding a ceramic fire-resistant belt, and the outer insulation is formed by extruding and crosslinking polyethylene; the number of the optical fiber units 3a and the number of the feeding channels 5 are 1.
The conductor 1 is formed by twisting a plurality of monofilament wires or a single solid wire, and the wire is processed by copper, tin-plated copper, nickel-plated copper, aluminum or aluminum alloy materials.
In the above description, when the cross section of the cable is 10mm2In the above process, the conductor 1 is formed by twisting a plurality of single-wire conducting wires, and the wires are required to be compressed during twisting, so that the gaps among the single wires are reduced; when the cross section of the cable is 6mm2And below, the conductor 1 is formed by a single solid wire.
The filling layer 4 is an environment-friendly flame-retardant filling rope which is formed by processing glass fiber ropes, inorganic paper ropes or other environment-friendly high-flame-retardant materials.
The feeding channel 5 is a cylindrical pipeline processed by food-grade plastics or food-grade metals.
The fireproof layer 6 is formed by lapping ceramic fireproof tapes or mica tapes;
the metal explosion-proof layer 7 is formed by wrapping a copper strip or a copper-plastic composite strip.
The fire barrier layer 8 is made of ceramic polyolefin or fire-proof mud.
The anti-interference layer 9 is formed by wrapping an aluminum alloy belt or a copper belt.
The outer sheath 10 is made of low-smoke halogen-free flame-retardant polyolefin material.
In the above description, the feeding duct 5 is disposed outside the cable core, and the optical fiber unit 3a is disposed in the center of the cable core.
The conductor 1 is formed by twisting a plurality of monofilament wires or a single solid wire, and the wire is processed by copper, tin-plated copper, nickel-plated copper, aluminum or aluminum alloy materials.
In the above description, when the cross section of the cable is 10mm2In the above process, the conductor 1 is formed by twisting a plurality of single-wire conducting wires, and the wires are required to be compressed during twisting, so that the gaps among the single wires are reduced; when the cross section of the cable is 6mm2And below, the conductor 1 is formed by a single solid wire.
The filling layer 4 is an environment-friendly flame-retardant filling rope which is formed by processing glass fiber ropes, inorganic paper ropes or other environment-friendly high-flame-retardant materials.
The feeding channel 5 is a cylindrical pipeline processed by food-grade plastics or food-grade metals.
The fireproof layer 6 is formed by lapping ceramic fireproof tapes or mica tapes;
the metal explosion-proof layer 7 is formed by wrapping a copper strip or a copper-plastic composite strip.
The fire barrier layer 8 is made of ceramic polyolefin or fire-proof mud.
The anti-interference layer 9 is formed by wrapping an aluminum alloy belt or a copper belt.
The outer sheath 10 is made of low-smoke halogen-free flame-retardant polyolefin material.
In the above description, the feeding duct 5 is placed in the center of the cable core, and the communication units 3b are placed outside the cable core.
The materials used in the utility model are all environment-friendly materials, so that the halogen-free performance of the cable non-metal material is ensured, and the following materials can be obtained through tests: the fluorine content is not more than 0.1 percent, the HCl and HBr contents are not more than 0.5 percent, the HF content is not more than 0.1 percent, the halogen contents of fluorine (F), chlorine (Cl), bromine (Br) and iodine (I) are not more than 1mg/g, the minimum value of the pH value of gas during product combustion is 4.3, and the gas conductivity during product combustion is not more than 1 mu S/mm; ensuring that the minimum light transmittance of smoke generated by the combustion of a cable product is not less than 80 percent; the limit value of toxic and harmful substances in the cable is ensured, namely lead (Pb) is less than or equal to 800 mg/kg; mercury (Hg) is less than or equal to 800 mg/kg; cadmium (Cd) is less than or equal to 80 mg/kg; hexavalent chromium (Cr 6 +) is less than or equal to 800 mg/kg; polybrominated biphenyls (PBB) are less than or equal to 800 mg/kg; polybrominated diphenyl ethers (PBDEs, excluding decabromodiphenyl ether) of less than or equal to 800 mg/kg; meanwhile, the smoke toxicity of the cable is ensured to be consistent with combustion; ZA when the smoke concentration is more than or equal to 12.4mg/L2The requirement of (1) is anesthesia, no death (including within 1h after infection) occurs in the experimental mouse in the 30min infection period; irritancy, 3-scale average body weight recovery of experimental mice after challenge.
The underground power supply system has excellent fireproof performance, flame retardant performance, explosion-proof performance and a supply function, is safe and environment-friendly, ensures the normal operation of the underground power supply system and the normal operation of the signal system, simultaneously ensures the smoothness of a supply channel of trapped people, and ensures the life safety of the trapped people.
The foregoing embodiments illustrate and describe the general principles, principal features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the utility model, but that various changes and modifications may be made without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents.
Claims (8)
1. The utility model provides a colliery is with supplying fire prevention explosion-proof comprehensive wiring which characterized in that: the coal mine support fire-proof and explosion-proof comprehensive wiring sequentially comprises a cable core, a fire-proof layer (6), a metal explosion-proof layer (7), a fire-proof layer (8), an anti-interference layer (9) and an outer sheath (10) from inside to outside; the cable core consists of an insulating wire core, an optical fiber unit (3 a), a filling layer (4) and a feeding channel (5); the number of the insulated wire cores is at least two, and each insulated wire core consists of a conductor (1) and an insulating layer (2); the insulating layer (2) adopts a composite insulating structure, the inner insulation is formed by winding a ceramic fire-resistant belt, and the outer insulation is formed by extruding and wrapping cross-linked polyethylene; the number of the optical fiber units (3 a) and the number of the feeding channels (5) are 1.
2. The coal mine support fire-proof and explosion-proof comprehensive wiring board as claimed in claim 1, wherein: the conductor (1) is formed by stranding a plurality of monofilament wires or is formed by a single solid wire, and the wire is processed by adopting copper, tin-plated copper, nickel-plated copper, aluminum or aluminum alloy materials; when the cross section of the cable is 10mm2When the conductor (1) is formed by twisting a plurality of monofilament wires, and the conductor needs to be compressed when twisted, so that the gaps among the monofilaments are reduced; when the cross section of the cable is 6mm2And when the conductor (1) is formed by a single solid lead.
3. The coal mine support fire-proof and explosion-proof comprehensive wiring board as claimed in claim 1, wherein: the filling layer (4) is an environment-friendly flame-retardant filling rope, and the environment-friendly flame-retardant filling rope is formed by processing glass fiber ropes, inorganic paper ropes or other environment-friendly high flame-retardant materials; the feeding channel (5) is a cylindrical pipeline processed by food-grade plastics or food-grade metals.
4. The coal mine support fire-proof and explosion-proof comprehensive wiring board as claimed in claim 1, wherein: the fireproof layer (6) is formed by lapping ceramic fireproof tapes or mica tapes in an overlapping way; the metal explosion-proof layer (7) is formed by wrapping a copper strip or a copper-plastic composite strip; the fire barrier layer (8) is processed by adopting ceramic polyolefin or fireproof mud; the anti-interference layer (9) is formed by wrapping an aluminum alloy belt or a copper belt; the outer sheath (10) is processed by low-smoke halogen-free flame-retardant polyolefin material.
5. The utility model provides a colliery is with supplying fire prevention explosion-proof comprehensive wiring which characterized in that: the coal mine support fire-proof and explosion-proof comprehensive wiring sequentially comprises a cable core, a fire-proof layer (6), a metal explosion-proof layer (7), a fire-proof layer (8), an anti-interference layer (9) and an outer sheath (10) from inside to outside; the cable core consists of an insulating wire core, a communication unit (3 b), a filling layer (4) and a feeding channel (5); the number of the insulated wire cores is at least two, and each insulated wire core consists of a conductor (1) and an insulating layer (2); the insulating layer (2) adopts a composite insulating structure, the inner insulation is formed by winding a ceramic fire-resistant belt, and the outer insulation is formed by extruding and wrapping cross-linked polyethylene; the number of the communication units (3 b) is at least two, and the communication units are composed of signal wire cores (3 b-1) and signal shielding layers (3 b-2); the number of the feeding channels (5) is 1.
6. The coal mine support fire-proof and explosion-proof comprehensive wiring board as claimed in claim 5, wherein: the conductor (1) is formed by stranding a plurality of monofilament wires or is formed by a single solid wire, and the wire is processed by adopting copper, tin-plated copper, nickel-plated copper, aluminum or aluminum alloy materials; when the cross section of the cable is 10mm2When the conductor (1) is formed by twisting a plurality of monofilament wires, and the conductor needs to be compressed when twisted, so that the gaps among the monofilaments are reduced; when the cross section of the cable is 6mm2And when the conductor (1) is formed by a single solid lead.
7. The coal mine support fire-proof and explosion-proof comprehensive wiring board as claimed in claim 5, wherein: the filling layer (4) is an environment-friendly flame-retardant filling rope, and the environment-friendly flame-retardant filling rope is formed by processing glass fiber ropes, inorganic paper ropes or other environment-friendly high flame-retardant materials; the feeding channel (5) is a cylindrical pipeline processed by food-grade plastics or food-grade metals.
8. The coal mine support fire-proof and explosion-proof comprehensive wiring board as claimed in claim 5, wherein: the fireproof layer (6) is formed by lapping ceramic fireproof tapes or mica tapes in an overlapping way; the metal explosion-proof layer (7) is formed by wrapping a copper strip or a copper-plastic composite strip; the fire barrier layer (8) is processed by adopting ceramic polyolefin or fireproof mud; the anti-interference layer (9) is formed by wrapping an aluminum alloy belt or a copper belt; the outer sheath (10) is processed by low-smoke halogen-free flame-retardant polyolefin material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122754111.XU CN216212432U (en) | 2021-11-11 | 2021-11-11 | Supply fire-proof explosion-proof comprehensive wiring for coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122754111.XU CN216212432U (en) | 2021-11-11 | 2021-11-11 | Supply fire-proof explosion-proof comprehensive wiring for coal mine |
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| Publication Number | Publication Date |
|---|---|
| CN216212432U true CN216212432U (en) | 2022-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122754111.XU Active CN216212432U (en) | 2021-11-11 | 2021-11-11 | Supply fire-proof explosion-proof comprehensive wiring for coal mine |
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| Country | Link |
|---|---|
| CN (1) | CN216212432U (en) |
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- 2021-11-11 CN CN202122754111.XU patent/CN216212432U/en active Active
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