Powdery material for cable-hole fireproof sealing

A fire blocking and cable hole technology, applied in cable entry sealing device, cable accessories, cable installation and other directions, can solve the problems of hardening, unusability, short shelf life of paste and mud, etc., and achieve long shelf life, low manufacturing cost, fire resistance long time effect

Inactive Publication Date: 2017-04-26
ANHUI NEWT FIRE EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] (3) Cracks will occur after drying
[0007] (4) The shelf life of the paste is short, and it will harden after being placed for a long time, making it unusable

Method used

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  • Powdery material for cable-hole fireproof sealing
  • Powdery material for cable-hole fireproof sealing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] (1) Raw material preparation: 75 parts of magnesia powder, 8 parts of dry clay powder, SiO 2 1 part of micro powder, 6 parts of sodium hexametaphosphate, 4 parts of quicklime powder, 3 parts of refractory fiber.

[0023] The magnesia powder passes through the 200-mesh sieve, and the dry clay powder passes through the 380-mesh sieve. The fine particle size can promote the rapid mixing of the powder into a paste, and improve the shapeability of the paste.

[0024] Refractory fiber Refractory fiber can strengthen the mechanical properties of the material after drying and prevent cracking. The best fiber length of refractory fiber is 4mm~6mm;

[0025] SiO 2 Micropowder and sodium hexametaphosphate play the role of binder;

[0026] Quicklime powder can generate heat after adding water and mixing, avoiding the phenomenon that the powder is difficult to mix in a low temperature environment.

[0027] (2) Powder production: Fully mix the powder prepared in step (1) by hand or...

Embodiment 2

[0035] (1) Raw material preparation: 79.5 parts of magnesia powder, 8.7 parts of dry clay powder, SiO 2 1.7 parts of fine powder, 5.6 parts of sodium hexametaphosphate, 3.5 parts of quicklime powder, and 3 parts of refractory fiber.

[0036] The magnesia powder passes through the 200-mesh sieve, and the dry clay powder passes through the 380-mesh sieve. The fine particle size can promote the rapid mixing of the powder into a paste, and improve the shapeability of the paste.

[0037] Refractory fiber Refractory fiber can strengthen the mechanical properties of the material after drying and prevent cracking. The best fiber length of refractory fiber is 4mm~6mm;

[0038] SiO 2 Micropowder and sodium hexametaphosphate play the role of binder;

[0039] Quicklime powder can generate heat after adding water and mixing, avoiding the phenomenon that the powder is difficult to mix in a low temperature environment.

[0040] (2) Powder production: Fully mix the powder prepared in step ...

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Abstract

The invention relates to the cable fireproof technology, in particular to a powdery material for cable-hole fireproof sealing. Existing fireproof sealing mud has the good sealing performance, but has the problems that the existing fireproof sealing mud is expensive in material, short in fireproof time, prone to cracking, short in shelf life and the like. The powdery material for cable-hole fireproof sealing is prepared from, by weight, 75%-85% of magnesite powder, 6%-10% of dry clay powder, 1%-2% of SiO2 micro powder, 5%-6% of sodium hexametaphosphate, 2%-4% of raw lime powder and 2%-3% of fireproof fibers. The powdery material is long in drying-preservation shelf life and low in material cost, and after the powdery material is used, the powdery material is resistant to cracking and long in fireproof time at the same time.

Description

technical field [0001] The invention relates to cable fire prevention technology, in particular to a powder material for fire prevention and sealing of cable holes. Background technique [0002] At present, the pre-made plugging paste is generally used for fireproof sealing of cable holes. The production process of plugging paste is relatively complicated. Organic synthetic resins are usually used as adhesives, fireproofing agents, fire-resistant oily materials, composite fillers, etc. are added. Made by rolling and pounding. The plasticity is very good, and holes and pores can be blocked arbitrarily. This kind of putty is mainly used in the fireproof and sealing projects of construction pipes and openings for electric wires and cables, and it's used together with inorganic fireproof putty and fire retardant bag. [0003] Although this kind of fireproof plugging mud has good plugging performance, it has the following defects: [0004] (1) The production raw materials are ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/34H02G15/00H02G15/013
CPCC04B28/344C04B2111/00663C04B2111/28H02G15/003H02G15/013C04B12/04C04B14/304C04B14/10C04B22/064C04B14/38
Inventor 桂永林
Owner ANHUI NEWT FIRE EQUIP
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