Preparation method of environment-friendly inorganic nonmetal fireproof partition plate material

An inorganic non-metallic and fire-proof partition technology, which is applied in the preparation of channel fire-proof materials, power cables and channels and tunnels, can solve the problems of metal fire-proof partitions such as easy oxidation, limited fire-proof effect, easy softening and deformation, etc., and achieves easy continuous installation , good dimensional stability and good connectability

Active Publication Date: 2020-07-31
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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  • Preparation method of environment-friendly inorganic nonmetal fireproof partition plate material
  • Preparation method of environment-friendly inorganic nonmetal fireproof partition plate 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

The invention discloses a preparation method of an inorganic nonmetal fireproof partition plate. The method is characterized in comprising the following steps: adding water into magnesium sulfate to prepare a magnesium sulfate solution; sequentially adding magnesium oxide and calcium stearate, stirring, adding bentonite, fly ash, talcum powder, citric acid monohydrate and sodium citrate, stirringto prepare a slurry, carrying out roll forming on the slurry, medium-alkali or low-alkali glass fiber grey cloth and non-woven fabric, curing, cutting, and cutting into a series of components to formthe fireproof partition plate with standard specification. The used raw materials are safe and environment-friendly; the formaldehyde release amount of the prepared environment-friendly inorganic nonmetal fireproof partition plate is as low as 0.1 ml/L; the fireproof grade is A1, the fire endurance can reach 4h, the flame temperature can reach 1300 DEG C, deformation cannot happen, the size stability of the plate is good, the mechanical strength is high, the breaking strength can reach 40 Mpa or above, the damp-proof performance is good, the corrosion resistance is good, the etching phenomenonis 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 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 Applications(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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