A kind of preparation method of environment-friendly inorganic non-metallic fireproof partition material

An inorganic non-metallic and fire-proof partition technology, which is applied in the direction of chemical instruments and methods, hydraulically coagulable material layered products, layered products, etc., can solve the problem of easy oxidation of metal fire-proof partitions, limited fireproof effect, easy softening and deformation, etc. problems, to achieve the effect of easy continuous installation, good dimensional stability and good connectability

Active Publication Date: 2022-03-15
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

The combustion performance level of the organic flame-retardant fireproof partition can only reach B1 or B2, and the fireproof effect is limited; the metal fireproof partition is easy to oxidize and rust, heat transfers quickly in the event of a fire, and is easy to soften and deform when exposed to fire
The inorganic non-metallic fireproof partition combines the advantages of the above two materials, but the inorganic fireproof partition has certain limitations in a humid environment. It is under this background that we have developed an environmentally friendly inorganic non-metallic fireproof partition. Production methods to achieve a safer and more reliable fire and flame retardant effect, and can be applied in various environments

Method used

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  • A kind of preparation method of environment-friendly inorganic non-metallic fireproof partition material
  • A kind of preparation method of environment-friendly inorganic non-metallic fireproof partition material

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A preparation method of an environment-friendly inorganic non-metallic fireproof partition is realized according to the following steps:

[0027] Step (1): Mix and stir 6.2 parts of magnesium sulfate and 5.8 parts of water according to the specific gravity to make a magnesium sulfate solution, send it into the mixer, put 14 parts of magnesium oxide and calcium stearate into the batching bin in turn, and send it to the mixer Stir together with magnesium sulfate solution for 18min, then add bentonite, fly ash, talcum powder, citric acid monohydrate, sodium citrate and continue to stir for 12min to form a slurry. Calculated according to the total weight percentage of the slurry, citric acid monohydrate is 1%, 0.4%-0.7% sodium citrate, 5%-2.8% calcium stearate, 10% bentonite, 20% fly ash, 25% talcum powder in the filling material, the particle size of the above talc powder is D=6μm Talcum powder A and talcum powder B with a particle size of 9 μm are a mixture of two talcum ...

Embodiment 2

[0033] A method for preparing an environment-friendly inorganic non-metallic fireproof partition is characterized in that, it is realized according to the following steps:

[0034] Step (1): Mix and stir 6 parts of magnesium sulfate and 6 parts of water according to the specific gravity to make magnesium sulfate solution, send it into the mixer, put 12 parts of magnesium oxide and calcium stearate into the batching bin in turn, and send it to the mixer Stir together with magnesium sulfate solution for 20 minutes, then add bentonite, fly ash, talcum powder, citric acid monohydrate, and sodium citrate and continue to stir for 10 minutes to form a slurry. Calculated according to the total weight percentage of the slurry, citric acid monohydrate is 1.4%, 0.7% sodium citrate, 5% calcium stearate, 7% bentonite, 28% fly ash, and 30% talcum powder in the filling material. and talcum powder B with a particle size of 10 μm is a mixture of two kinds of talcum powders with different thick...

Embodiment 3

[0039] A method for preparing an environment-friendly inorganic non-metallic fireproof partition is characterized in that, it is realized according to the following steps:

[0040] Step (1): Mix and stir 6 parts of magnesium sulfate and 5.5 parts of water according to the specific gravity to make a magnesium sulfate solution, send it to the mixer, put 15 parts of magnesium oxide and calcium stearate into the batching bin in turn, and send it to the mixer Stir with magnesium sulfate solution for 15 minutes, then add bentonite, fly ash, talcum powder, citric acid monohydrate, sodium citrate and continue to stir for 15 minutes to form a slurry. Calculated according to the total weight percentage of the slurry, citric acid monohydrate is 0.7%, 0.4% sodium citrate, 2.8% calcium stearate, 15% bentonite, 15% fly ash, and 17% talcum powder in the filling material. Talc powder B with a diameter of 9.5 μm is a mixture of two kinds of talc powders with different thicknesses, and its comp...

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Abstract

A method for preparing an environment-friendly inorganic non-metallic fireproof partition, characterized in that: the inorganic nonmetallic fireproof partition is prepared by adding magnesium sulfate to water to form a magnesium sulfate solution, then adding magnesium oxide and calcium stearate in sequence, and stirring , then add bentonite, fly ash, talcum powder, citric acid monohydrate, sodium citrate, and stir to make a slurry, and then mix it with medium-alkali or low-alkali glass fiber gray cloth and non-woven fabric, and carry out maintenance and Trimmed and then cut into series components to form standard size fire barriers. The raw materials used in the present invention are safe and environmentally friendly, and the formaldehyde emission of the prepared environmentally friendly inorganic non-metallic fireproof partition is as low as 0.1ml / L. The dimensional stability is good, the mechanical strength is high, the flexural strength can reach more than 40Mpa, the moisture-proof performance is good, the corrosion resistance is good, the corrosion phenomenon is not easy to occur, the connectability is good, and it is easy to install continuously.

Description

technical field [0001] The invention belongs to the field of preparation of fireproof materials for power cables and passageways, tunnels and passageways, and in particular relates to a preparation method of an environment-friendly inorganic non-metallic fireproof partition material. Background technique [0002] The fire barrier is used for the fire isolation between layers of high-voltage cables laid in the same channel in the power cable tunnel, and supports the continuous rigid structure of the cables and related connecting devices. High-voltage cable passages such as tunnels and trenches shall be provided with fireproof partitions according to the requirements of the design regulations, and the fireproof partitions include fireproof partitions. At present, the commonly used fireproof partitions include organic non-combustible fireproof partitions, metal fireproof partitions (made of 304 stainless steel), and inorganic non-metallic fireproof partitions. The invention is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/30B32B13/14B32B5/02B32B17/02B32B17/12B32B37/10B32B38/16C04B111/28
CPCC04B28/30B32B13/14B32B5/022B32B5/02B32B5/26B32B37/10B32B38/164B32B2038/166B32B2262/101B32B2307/3065B32B2307/734B32B2307/7246B32B2307/714C04B2111/00612C04B2111/28C04B2201/50C04B2201/20C04B24/085C04B14/104C04B18/08C04B14/042C04B24/06
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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