CN203935710U - Heat-resistant basalt fibre filter material - Google Patents

Abstract

The utility model discloses a kind of heat-resistant basalt fibre filter material, its intermediate layer is basalt fibre base cloth (1), and on the upper and lower surface of basalt base cloth, acupuncture has basalt varicosity chopped strand net (2).On probation after testing: its warp-wise brute force>=2400N, broadwise brute force>=2200N, the grammes per square metre>=950g/m of unit ², air penetrability>=9m ³/ (m ²min), 400 DEG C of normal serviceability temperatures, 450 DEG C of instantaneous heatproofs, have the characteristics such as high temperature resistant, corrosion-resistant and filter efficiency is high, can adapt to industry high temperature, the requirements of highly corrosive flue gas operating mode to filtrate such as iron and steel, cement, chemical industry, non-ferrous metal completely; Also can cancel the smoke temperature reducer using in existing cleaner simultaneously, greatly reduce the initial cost of dust pelletizing system.

Description

High temperature resistant basalt fiber filter material

technical field

The utility model relates to a high-temperature-resistant basalt fiber filter material, which belongs to the technical field of environmental protection and dust removal.

Background technique

At present, synthetic organic fiber filter materials widely used in China cannot directly meet the high temperature (generally higher than 250 °C) and highly corrosive dust-containing flue gas in industries such as steel, cement, chemical industry, and nonferrous metals due to defects such as low temperature resistance. For filtration and purification, a flue gas cooling device must be installed in front of the dust collector to make the synthetic organic fiber filter material adapt to the requirements of high temperature and highly corrosive flue gas working conditions, thus greatly increasing the initial investment of the dust removal system.

Utility model content

The purpose of the utility model is to overcome the deficiencies of the prior art and provide a high-temperature-resistant basalt fiber filter material to meet the requirements of high-temperature and highly corrosive flue gas working conditions for the filter material and reduce the initial investment of the dust removal system.

The technical solution is: a high temperature resistant basalt fiber filter material, characterized in that: the middle layer of the filter material is basalt fiber base cloth, and the upper and lower surfaces of the basalt base cloth are needle-punched with basalt expanded chopped fiber net .

Its beneficial effects are: the utility model is used as a part of the project (project number: 2011BAE29B00) of the "Cement Kiln Dust and Nitrogen Oxide Reduction Key Materials and Application Technology Development" project of the "Twelfth Five-Year" National Science and Technology Support Plan. High-temperature-resistant basalt fiber filter material, tested and tested: its warp strength ≥ 2400N, weft strength ≥ 2200N, unit weight ≥ 950g/m ² , air permeability ≥ 9m ³ /(m ² ·min), normal use temperature 400 ℃, instantaneous temperature resistance 450 ℃, with high temperature resistance, corrosion resistance and high filtration efficiency, fully able to meet the requirements of high temperature and highly corrosive flue gas working conditions in steel, cement, chemical, non-ferrous metals and other industries; at the same time It can also cancel the flue gas cooling device used in the existing dust removal equipment, greatly reducing the initial investment of the dust removal system.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Detailed ways

As shown in Figure 1, a high temperature resistant basalt fiber filter material, the middle layer of the filter material is a basalt fiber base cloth 1, and the upper and lower surfaces of the basalt base cloth are needle-punched with a basalt expanded chopped fiber net 2.

When in use, a layer of surface modifier 3 can be coated on the windward side of the above-mentioned fiber filter material.

After testing and testing: the above-mentioned filter material has a warp strength of ≥2400N, a weft strength of ≥2200N, a unit weight of ≥950g/m ² , an air permeability of ≥9m ³ /(m ² ·min), a normal use temperature of 400°C, and an instantaneous temperature resistance 450°C. It can fully adapt to the requirements of filter materials for high temperature and highly corrosive flue gas working conditions in industries such as steel, cement, chemical industry, and nonferrous metals.

Claims (2)

1. a heat-resistant basalt fibre filter material, is characterized in that: the intermediate layer of described filtrate is basalt fibre base cloth (1), and on the upper and lower surface of basalt base cloth, acupuncture has basalt varicosity chopped strand net (2).

2. a kind of heat-resistant basalt fibre filter material according to claim 1, is characterized in that: on the windward side of described fiber filtering, apply layer of surface modifier (3).