Nanometer-ceramic-powder-base adsorption filtering agent and preparation method thereof

Abstract

The invention discloses a nanometer-ceramic-powder-base adsorption filtering agent and a preparation method thereof. The agent is prepared from the following raw materials by weight: 10 to 20 parts of nanometer ceramic powder, 30 to 40 parts of construction wastes, 45 to 55 parts of sunflower straws, 40 to 50 parts of brewing residues, 2 to 3 parts of sodium chloride, 1 to 3 parts of zinc chloride, 2 to 4 parts of magnesium hydroxide, 6 to 9 parts of alumina sol, 1.4 to 2.5 parts of benzotriazole, 5 to 7 parts of nanometer titanium dioxide and a proper amount of water. The preparation method for the nanometer-ceramic-powder-base adsorption filtering agent provided by the invention integrates adsorption characteristics of numerous traditional materials, loads nanometer titanium dioxide onto the surface of the adsorption filtering agent via a physical and chemical modification method and can decompose organic pollutants into carbon dioxide and oxygen, thereby reducing harmful substances adsorbed on the adsorption filtering agent and prolonging the service life of the adsorption filtering agent; the adsorption filtering agent prepared by modification through adding of sodium chloride and the like has rough and hard surface, large specific surface area, high porosity, good adsorption filtering property; meanwhile, the agent has good mercury adsorption characteristic when sprayed on a filtering material of a dust collector, and has broad application prospects.

Description

technical field [0001] The invention relates to the technical field of adsorption filter materials, in particular to a nano-ceramic powder-based adsorption filter and a preparation method thereof. Background technique [0002] With the rapid development of industrialization, the problem of air quality is becoming more and more serious. Especially in recent years, smog has seriously threatened people's health across the country, and the side effects caused by it have become increasingly serious. The culprits are domestic building materials, chemicals, For the smoke and dust discharged from kiln heads and kiln tails, calcium carbide furnaces, ferroalloy furnaces, etc. in metallurgical industries, the most commonly used dust removal equipment is the bag filter. The bag filter is a dry dust filter device. After the filter material is used for a period of time, due to effects such as screening, collision, retention, diffusion, and static electricity, a layer of dust accumulates o...

AI Technical Summary

Problems solved by technology

However, in the actual operation process, the use of the first layer is not enough, resulting in low dust removal effect and serious wear and corrosion of the filter material after long-term use. There is an urgent need for an adsorption filter with high efficiency and multiple functions to be sprayed on the filter before the dust collector starts to work. The surface of the material is used as the first layer, which can not only improve the dust removal effect of the dust collector, but also filter and absorb the harmful exhaust gas discharged.