CN104841371A - High-activity vermiculite/carbon nanotube composite adsorption filtering agent and preparation method thereof - Google Patents

Abstract

The invention discloses a high-activity vermiculite/carbon nanotube composite adsorption filtering agent which is prepared from the following raw materials, by weight, 43-57 parts of vermiculite, 25-37 parts of iolite, 6-9 parts of tourmalinite powder, 7-10 parts of basalt fiber, 2.3-4.1 parts of manganese dioxide, 0.1-0.3 part of carbon nanotube, 5-8 parts of nanometer titanium dioxide, 1.3-2.5 parts of sodium tartrate, 8-11 parts of silica sol, 2.1-3.4 parts of isothiazolinone and a proper amount of water. After basalt fiber is used to modify titanium dioxide, the modified titanium dioxide is loaded on the surface of vermiculite. Thus, adsorption property is raised, and organic pollutants can be decomposed into carbon dioxide and oxygen. Then, harmful substances adsorbed on vermiculite are reduced, and service life of the adsorption filtering agent is prolonged. The prepared adsorption filtering agent has advantages of rough and hard surface, large specific surface area, high porosity, good adsorption filtration performance, high strength, high toughness and low cost.

Description

Absorption filter agent of a kind of high activity vermiculite/CNT compound and preparation method thereof

Technical field

The present invention relates to absorption filter agent field of material technology, be specifically related to absorption filter agent of a kind of high activity vermiculite/CNT compound and preparation method thereof.

Background technology

Along with the fast development of process of industrialization, air quality problems is increasingly serious, especially the healthy of people in nationwide haze serious threat in recent years, the side effect brought thus is also day by day serious, wherein arch-criminal is exactly the flue dust of the discharge such as kiln head and tail, furnace of calcium carbide, ferro-alloy furnace of the industries such as domestic building materials, chemical industry, metallurgy, and cleaner the most frequently used is at present exactly sack cleaner.Sack cleaner is a kind of dry type dust filtration device, after filtrate uses a period of time, due to effects such as sieving, collision, delay, diffusion, electrostatic, one deck dust has been gathered on filter bag surface, this layer of dust is called bonding layer, and in motion process after this, bonding layer has become the main filtration layer of filtrate, rely on the effect of bonding layer, the filtrate that mesh is larger also can obtain higher filter efficiency.But the utilization of bonding layer is abundant not in real-world operation process, cause that dust removing effects is low, the consequences such as erosion corrosion situation is serious after filtrate Long-Time Service, the absorption filter agent being badly in need of a kind of efficient function diversification is sprayed on filter material surface and is used as bonding layer use before deduster is started working, both can improve the dust removing effects of deduster, the harmful exhaust that absorption is fallen to discharge can also have been filtered.

Summary of the invention

Object of the present invention is just to provide absorption filter agent of a kind of high activity vermiculite/CNT compound and preparation method thereof, to overcome the deficiencies in the prior art.

The object of the present invention is achieved like this:

A kind of absorption filter agent of high activity vermiculite/CNT compound, it is characterized in that, be made up of the raw material of following weight portion: vermiculite 43-57, cordierite 25-37, tourmaline powder 6-9, basalt fibre 7-10, manganese dioxide 2.3-4.1, CNT 0.1-0.3, nano titanium oxide 5-8, sodium tartrate 1.3-2.5, Ludox 8-11, OIT 2.1-3.4, suitable quantity of water.

The preparation method of the absorption filter agent of described a kind of high activity vermiculite/CNT compound, is characterized in that comprising the following steps:

(1) basalt fibre is pulverized 120-180 mesh sieve, added nano titanium oxide, Ludox agitation grinding 1-2 hour, at 150-180 DEG C, dry obtained modified nano-titanium dioxide;

(2) get vermiculite in 620-760 DEG C of high-temperature calcination process 2-4 hour, cooling is pulverized to drop in high mixer and is added modified nano-titanium dioxide in 180-210 DEG C of mix and blend 30-50 minute;

(3) sodium tartrate is added water to be stirred to dissolve completely, add step (2) material stirring 10-20 minute, be warming up to 80-120 DEG C and continue to stir 30-40 minute, then add cordierite, tourmaline powder and other residual components dispersion grinding 2-3 hour, granulation is dried, discharging.

The present invention has following beneficial effect: the present invention adopts basalt fibre by titania modified back loading in vermiculite surface, improve absorption property and organic pollution can be decomposed into carbon dioxide and oxygen, thus reduce the harmful substance be adsorbed on vermiculite, extend absorption filter agent service life, obtained absorption filter agent rough surface is hard, specific area is large, porosity is high, Adsorption Filtration Properties is good, intensity is high, the large cost of toughness is low.

Detailed description of the invention

The absorption filter agent of described a kind of high activity vermiculite/CNT compound, it is characterized in that, be made up of the raw material of following weight portion: vermiculite 45, cordierite 35, tourmaline powder 8, basalt fibre 7, manganese dioxide 2.9, CNT 0.2, nano titanium oxide 7, sodium tartrate 2.3, Ludox 9, OIT 2.5, suitable quantity of water.

Preparation method comprises the following steps:

(1) basalt fibre is pulverized 120-180 mesh sieve, added nano titanium oxide, Ludox agitation grinding 1-2 hour, at 150-180 DEG C, dry obtained modified nano-titanium dioxide;

(2) get vermiculite in 620-760 DEG C of high-temperature calcination process 2-4 hour, cooling is pulverized to drop in high mixer and is added modified nano-titanium dioxide in 180-210 DEG C of mix and blend 30-50 minute;

(3) sodium tartrate is added water to be stirred to dissolve completely, add step (2) material stirring 10-20 minute, be warming up to 80-120 DEG C and continue to stir 30-40 minute, then add cordierite, tourmaline powder and other residual components dispersion grinding 2-3 hour, granulation is dried, discharging.

The specific area of the absorption filter agent using the present invention to produce is 338 ㎡/g; Trapping dust efficiency >=97.8%.

Claims (2)

1. the absorption filter agent of high activity vermiculite/CNT compound, it is characterized in that, be made up of the raw material of following weight portion: vermiculite 43-57, cordierite 25-37, tourmaline powder 6-9, basalt fibre 7-10, manganese dioxide 2.3-4.1, CNT 0.1-0.3, nano titanium oxide 5-8, sodium tartrate 1.3-2.5, Ludox 8-11, OIT 2.1-3.4, suitable quantity of water.

2. the preparation method of the absorption filter agent of a kind of high activity vermiculite/CNT compound according to claim 1, is characterized in that comprising the following steps:

(1) basalt fibre is pulverized 120-180 mesh sieve, added nano titanium oxide, Ludox agitation grinding 1-2 hour, at 150-180 DEG C, dry obtained modified nano-titanium dioxide;

(2) get vermiculite in 620-760 DEG C of high-temperature calcination process 2-4 hour, cooling is pulverized to drop in high mixer and is added modified nano-titanium dioxide in 180-210 DEG C of mix and blend 30-50 minute;

(3) sodium tartrate is added water to be stirred to dissolve completely, add step (2) material stirring 10-20 minute, be warming up to 80-120 DEG C and continue to stir 30-40 minute, then add cordierite, tourmaline powder and other residual components dispersion grinding 2-3 hour, granulation is dried, discharging.