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Preparation method of environment-friendly inorganic nonmetal fireproof cable trough box

An inorganic non-metallic, fire-resistant cable technology, used in cable installation, cable installation in tunnels, electrical components, etc. Limited and other problems, to achieve the effect of good connectivity, easy continuous installation, and good dimensional stability

Active Publication Date: 2020-08-04
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 flame-retardant cable trays have limited fire protection effects, and their combustion performance can only reach B1 and B2. Metal fire-resistant cable trays are prone to oxidation 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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  • Preparation method of environment-friendly inorganic nonmetal fireproof cable trough box
  • Preparation method of environment-friendly inorganic nonmetal fireproof cable trough box
  • Preparation method of environment-friendly inorganic nonmetal fireproof cable trough box

Examples

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 part of organic silicon, 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...

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 mixer 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 organic silicon, 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;

[005...

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Abstract

The invention discloses a preparation method of an inorganic nonmetal fireproof cable trough box. Magnesium oxide, magnesium sulfate and water are used as reaction raw materials, the preparation method comprises the following steps: adding water into the magnesium sulfate to prepare a magnesium sulfate solution, sequentially adding the magnesium oxide and organic silicon, stirring, adding bentonite, fly ash, talcum powder, citric acid monohydrate, sodium citrate and calcium stearate, stirring to prepare slurry, and adding medium-alkali or low-alkali glass fiber gray fabric and non-woven fabricto form the fire-resistant trough box with standard specification. The used raw materials are safe and environment-friendly, the formaldehyde release amount of the prepared environment-friendly inorganic non-metal fire-resistant trough box is as low as 0.1 ml / L, the fireproof grade is A1, the fire endurance can reach 4 h, deformation and decomposition cannot occur when the flame temperature reaches 1300 DEG C, the mechanical strength is high, the breaking strength can reach 45 Mpa or above, and the bearing capacity is large and can reach 4600-13000 KN. And the moisture-proof performance is good, the corrosion resistance is good, the etching phenomenon is not likely to happen, the connectivity is good, and continuous installation is easy.

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 method for preparing an environment-friendly inorganic non-metal fire-resistant cable box. 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-resistant fire-resistant cable troughs, metal fire-resistant cable troughs (made of 304 stainless steel), and inorganic fire-resistant cable troughs. [000...

Claims

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Application Information

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Patent Type & Authority Applications(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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