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A kind of preparation method of environment-friendly inorganic non-metal fire-resistant cable box

An inorganic non-metallic, fire-resistant cable technology, applied in cable installation, cable installation in tunnels, electrical components, etc., can solve the problem of limited fire-proof effect of fire-resistant cable trays, easy oxidation, rust and softening of metal fire-resistant cable trays Deformation and other problems, to achieve the effect of easy continuous installation, good connectability and good dimensional stability

Active Publication Date: 2022-02-15
镁晶建筑科技(重庆)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Organic fire-resistant cable troughs have limited fire-proof effects, and the combustion performance can only reach B1 and B2. Metal refractory cable troughs are easy to oxidize and rust in humid environments, and are easy to soften and deform when exposed to fire.
Inorganic fire-resistant tanks are only suitable for cable fire protection in dry environments, not for cable fire protection in humid environments

Method used

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  • A kind of preparation method of environment-friendly inorganic non-metal fire-resistant cable box
  • A kind of preparation method of environment-friendly inorganic non-metal fire-resistant cable box
  • A kind of preparation method of environment-friendly inorganic non-metal fire-resistant cable box

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A preparation method of an inorganic non-metallic fire-resistant cable trough is carried out according to the following steps:

[0030] Step (1): Mix and stir 62 parts of magnesium sulfate and 57 parts of water according to the specific gravity to make a magnesium sulfate solution, put it into a mixer for use, weigh 100 parts of magnesium oxide and 1.5 parts of calcium stearate and add it to the batching bin successively. Transfer to the mixer and stir with the magnesium sulfate solution for 18min;

[0031] Step (2): Add bentonite, fly ash, talcum powder, citric acid monohydrate, sodium citrate, and organic silicon in sequence and continue stirring for 12 minutes to form a slurry. Among the modified additives, 1.2 parts of citric acid monohydrate, sodium citrate 0.7 parts, 0.5 parts of organic silicon, 6 parts of bentonite, 20 parts of fly ash and 22 parts of talcum powder in the filling material;

[0032] Step (3): irradiating the above slurry with Cs-137 for 8 hours;...

Embodiment 2

[0039] A preparation method of an inorganic non-metallic fire-resistant cable trough is carried out according to the following steps:

[0040] Step (1): Mix and stir 60 parts of magnesium sulfate and 60 parts of water according to the specific gravity to make a magnesium sulfate solution, put it into a mixer for use, weigh 100 parts of magnesium oxide and 2.8 parts of calcium stearate and add it to the batching bin successively. Transfer to the mixer and stir with the magnesium sulfate solution for 15 minutes;

[0041] Step (2): Add bentonite, fly ash, talcum powder, citric acid monohydrate, sodium citrate, and organic silicon in sequence and continue stirring for 10 minutes to form a slurry. Among the modification additives, 0.8 parts of citric acid monohydrate, sodium citrate 1 part, 0.2 parts of silicone, 10 parts of bentonite, 12 parts of fly ash, and 28 parts of talcum powder in the filling material;

[0042] Step (3): irradiating the above slurry with Cs-137 for 7 hours...

Embodiment 3

[0047] A preparation method of an inorganic non-metallic fire-resistant cable trough is carried out according to the following steps:

[0048] Step (1): Mix and stir 65 parts of magnesium sulfate and 55 parts of water according to the specific gravity to make a magnesium sulfate solution, put it into a blender for use, weigh 100 parts of magnesium oxide and 0.5 part of calcium stearate and add it to the batching bin successively. Transfer to the mixer and stir with magnesium sulfate solution for 20min;

[0049] Step (2): Add bentonite, fly ash, talcum powder, citric acid monohydrate, sodium citrate, and organic silicon in sequence and continue stirring for 15 minutes to form a slurry. Among the modified additives, 1.6 parts of citric acid monohydrate, sodium citrate 0.5 parts, 1 part of silicone, 5 parts of bentonite, 28 parts of fly ash, and 18 parts of talcum powder in the filling material;

[0050] Step (3): irradiating the above slurry with Cs-137 for 6 hours;

[0051] S...

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Abstract

A method for preparing an inorganic non-metal refractory cable trough box, using magnesium oxide, magnesium sulfate and water as reaction raw materials, adding water to magnesium sulfate to prepare a magnesium sulfate solution, then adding magnesium oxide and organic silicon in sequence, stirring, and then Add bentonite, fly ash, talcum powder, citric acid monohydrate, sodium citrate, and calcium stearate to make a slurry, then add medium-alkali or low-alkali glass fiber gray cloth and non-woven fabric to form a standard fire-resistant slot box. The raw materials used in the present invention are safe and environment-friendly, and the formaldehyde emission of the prepared environmentally friendly inorganic non-metal refractory tank box is as low as 0.1ml / L. It has a fireproof grade A1, and the fire resistance limit can reach 4h. When the flame temperature reaches 1300°C, it will not deform and decompose. The mechanical strength is high, the flexural strength can reach more than 45Mpa, and the bearing capacity can reach 4600‑13000KN. Good moisture-proof performance, good corrosion resistance, not easy to be corroded, good connectability, easy to install continuously.

Description

technical field [0001] The invention belongs to the field of preparation of fireproof materials for power cables and channels, and in particular relates to a preparation method of an environment-friendly inorganic non-metallic fireproof cable trough. Background technique [0002] The fire-resistant cable trough box is used for low-voltage power lines and communication optical cables laid in the same channel in the power cable tunnel. The key components are composed of trays and cover plates, which can meet the specified fire-resistant maintenance working time requirements, and are used for laying and supporting cables and related connections. The continuous rigid structure of the device. The commonly used fire-resistant troughs for high-voltage cables such as power grid systems, tunnels, and trenches include organic flame-retardant fire-resistant cable troughs, metal fire-resistant cable troughs (made of 304 stainless steel), and inorganic fire-resistant cable troughs. [0...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/30H02G3/04H02G9/08C04B111/20C04B111/27C04B111/28
CPCC04B28/30H02G9/08H02G3/0406H02G3/0412H02G3/0437C04B2111/00379C04B2111/00612C04B2111/00844C04B2111/20C04B2111/27C04B2111/28C04B2201/50C04B14/304C04B22/142C04B24/06C04B24/42C04B24/085C04B14/104C04B18/08C04B14/042
Inventor 董连勇李刚林华好
Owner 镁晶建筑科技(重庆)有限公司
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