Preparation method of explosion-proof cable trough box

An explosion-proof cable and tank box technology, applied in the direction of cable joints, etc., can solve the problems of easy softening and deformation, easy expansion of the tank box when heated, and strength attenuation, etc., to achieve excellent impermeability and waterproof ability and corrosion resistance, excellent fire and explosion-proof performance, The effect of reducing the possibility of explosion

Active Publication Date: 2020-08-04
镁晶建筑科技(重庆)有限公司
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the quality and installation process, once the cable explodes, it will destroy other cables parallel in the same ditch, or it will cause a cable fire and cause irreparable losses to the entire power system.
[0003] The commonly used explosion-proof groove boxes for high-voltage cables such as power grid systems, tunnels, and trenches are mostly used for cable intermediate joints, and most of them are made of glass fiber, glass steel or stainless steel. When used in a hu

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of explosion-proof cable trough box
  • Preparation method of explosion-proof cable trough box
  • Preparation method of explosion-proof cable trough box

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A preparation method of an explosion-proof cable trough box is carried out according to the following scheme:

[0033] Step (1): 62 parts of magnesium sulfate and 58 parts of water are mixed and stirred according to specific gravity to make magnesium sulfate solution, which is sent into a mixer for use;

[0034] Step (2): Weigh 100 parts of magnesium oxide and 0.6 parts of organic silicon into the batching bin in turn, transport them to the mixer and stir with the magnesium sulfate solution for 18 minutes at a stirring speed of 90 r / min;

[0035] Step (3): Add 8 parts of bentonite, 20 parts of fly ash, 25 parts of talcum powder, 1 part of citric acid monohydrate, 0.8 parts of sodium citrate, 1.5 parts of calcium stearate and stir for 12 minutes at 110 r / min to form Slurry, wherein the talcum powder is a mixture of talcum powder A with a particle diameter of 6 μm and a talcum powder B with a particle diameter of 9 μm, and the composition mass ratio is talcum powder A: talc...

Embodiment 2

[0048] A preparation method of an explosion-proof cable trough box is carried out according to the following scheme:

[0049] Step (1): 60 parts of magnesium sulfate and 55 parts of water are mixed and stirred according to the specific gravity to make a magnesium sulfate solution, which is sent into a mixer for use;

[0050] Step (2): Weigh 100 parts of magnesium oxide and 1 part of organic silicon into the batching bin in turn, transport them to the mixer and stir with the magnesium sulfate solution for 20 minutes at a stirring rate of 80 r / min;

[0051] Step (3): Add 5 parts of bentonite, 28 parts of fly ash, 18 parts of talcum powder, 0.8 part of citric acid monohydrate, 1 part of sodium citrate, 0.5 part of calcium stearate and stir for 15 minutes at 120 r / min to form Slurry, wherein the talcum powder is a mixture of talcum powder A with a particle diameter of D=5.5 μm and a talcum powder B with a particle diameter of 10 μm, and the composition mass ratio is talcum powder ...

Embodiment 3

[0057] A preparation method of an explosion-proof cable trough box is carried out according to the following scheme:

[0058] Step (1): 65 parts of magnesium sulfate and 60 parts of water are mixed and stirred according to the specific gravity to make a magnesium sulfate solution, which is sent into a mixer for use;

[0059] Step (2): Weigh 100 parts of magnesia and 0.2 parts of organic silicon and add them to the batching bin in turn, transport them to the mixer and stir with the magnesium sulfate solution for 15 minutes at a stirring speed of 100 r / min;

[0060] Step (3): Add 10 parts of bentonite, 12 parts of fly ash, 28 parts of talcum powder, 1.6 parts of citric acid monohydrate, 0.5 parts of sodium citrate, 2.8 parts of calcium stearate and stir for 10 minutes at 100 r / min to form Slurry, wherein the talcum powder is a mixture of talcum powder A with a particle diameter of 5.8 μm and a talcum powder B with a particle diameter of 9 μm, and the composition mass ratio is ta...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Particle sizeaaaaaaaaaa
Particle sizeaaaaaaaaaa
Particle sizeaaaaaaaaaa
Login to view more

Abstract

The invention discloses a preparation method of an explosion-proof cable trough box. The method is characterized in that the method is characterized by comprising the following steps, the explosion-proof cable trough box is calculated according to the weight, 100 parts of magnesium oxide, 60-65 parts of magnesium sulfate and 55-60 parts of water are used as reaction raw materials, 0.8 to 1.6 partsof citric acid monohydrate, 0.5 to 1 part of sodium citrate, 0.2 to 1 part of organic silicon and calcium stearate are used as modification auxiliary agents, 5-10 parts of bentonite, 12-28 parts of coal ash and 18-28 parts of talcum powder are used as filling materials to prepare slurry, then the slurry, low-alkali glass fiber grey cloth and non-woven fabric are rolled and cut into an inorganic nonmetal shell, and a metal layer is compounded on the inner wall of the formed shell. The explosion-proof cable trough box prepared by the invention has the advantages that (1) the explosion-proof cable trough box is safe and environment-friendly, and the formaldehyde emission is as low as 0.1 ml/L, (2) the mechanical strength is high, the breaking strength reaches 88.4 MPa or above, and the bearing capacity can reach 13000KN or above, (3) excellent physical and chemical properties, and (4) excellent fireproof and explosion-proof performance is achieved, the fireproof performance reaches the A1 level, the fire endurance can reach 4 h, and deformation and decomposition do not occur at the flame temperature of 1500 DEG C.

Description

technical field [0001] The invention relates to the technical field of power cables and channel materials, in particular to a method for preparing an explosion-proof cable trough. Background technique [0002] With the rapid development of China's national economy, China's cable popularization projects have spread throughout every city. More and more cable projects concentrate cables in cable trenches or cable wells. However, with the popularization of power cable projects, cable accidents The rate has also increased, and a large number of facts have proved that most of the cable accidents are related to cable accessories. Due to the quality and installation process, once the cable explodes, it will destroy other cables parallel in the same ditch, or it will cause a cable fire and cause irreparable losses to the entire power system. [0003] The commonly used explosion-proof groove boxes for high-voltage cables such as power grid systems, tunnels, and trenches are mostly us...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C04B28/30H02G15/10C04B111/20C04B111/27C04B111/28
CPCC04B28/30H02G15/10C04B2111/00379C04B2111/00612C04B2111/27C04B2111/20C04B2111/28C04B2111/00844C04B2201/52C04B14/304C04B22/142C04B24/06C04B24/42C04B24/085C04B14/104C04B18/08C04B14/042
Inventor 董连勇李刚林华好
Owner 镁晶建筑科技(重庆)有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap