CN103381325A - Bauxite structural filter core and preparation method thereof - Google Patents

Abstract

The invention provides a bauxite structural filter core and a preparation method thereof, and is characterized in that the structural filter core is prepared from the following raw materials, in parts by weight: 12-14 parts of polytetrafluoroethylene, 4-6 parts of polyvinylidene fluoride, 4-6 parts of kaoline, 10-12 parts of bauxite, 32-35 parts of an active carbon powder, 1-2 parts of a copper powder, 3-5 parts of magnesium oxide, 2-3 parts of sodium bicarbonate, 1-2 parts of ammonium carbonate, 1-2 parts of aliphatic alcohol polyoxyethylene ether sulfate, 4-6 parts of an aluminate coupling agent DL-411, 2-3 parts of phenyl trichlorosilane, 1-2 parts of azodicarbonamide, 25-35 parts of modified bentonite, and a proper amount of water. The bauxite structural filter core adopts polytetrafluoroethylene as the main material, has the advantages of acid resistance, alkali resistance, corrosion resistance and the like, can be used for various harsh environments, has the outstanding advantages of high purification efficiency, high temperature resistance, low pressure loss, corrosion resistance, long service life and the like, and can also remove micro-dust in air.

Description

A kind of aluminium vanadine filter core and preparation method thereof

Technical field

The invention belongs to the filtering material technical field, specifically a kind of aluminium vanadine filter core and preparation method thereof.

Background technology

The filtering material purposes is very extensive, is widely used in the industry such as chemical industry, electric power, metallurgy, oil, electronic apparatus, machinery; Modal have an air filter for automobile, is used for filtering the air that enters engine, and the mechanical admixture compositions such as airborne particle, particulate are stopped, prevents that these compositions from entering in gasoline, diesel oil or machine oil, guarantees engine work.Also have a large amount of filtering materials to be used for air handling system, ambient air pollutes very serious now, greatly be detrimental to health, air filting material can be with the various deleterious particle thing absorption of air, prevent from entering people's life or working environment, reduce the human lung to the suction of the harmful substances such as particle, improve people's quality of life, reduce the generation of disease.Some is used for water filtration and sewage disposal, for separating of the heavy metal in water or harmful components.Existing filtering material mainly contains ceramic honey comb, filter paper, steel wire etc.Existing honeycomb ceramic filter material feedstock is joined function singleness, can not satisfy the requirement of technology development.

Summary of the invention

The purpose of this invention is to provide a kind of aluminium vanadine filter core and preparation method thereof, invention has that purification efficiency is high, high temperature resistant, the pressure loss is little, corrosion-resistant, long service life, remove the outstanding advantages such as airborne micronic dust.

The technical solution adopted in the present invention is:

A kind of aluminium vanadine filter core is characterized in that being made by the raw material of following weight portion:

Polytetrafluoroethylene (PTFE) 12-14, Kynoar 4-6, kaolin 4-6, aluminium vanadine 10-12, activated carbon powder 32-35, copper powder 1-2, magnesia 3-5, sodium acid carbonate 2-3, ammonium carbonate 1-2, fatty alcohol polyoxyethylene ether sulfate 1-2, aluminate coupling agent DL-411 4-6, phenyl trichlorosilane 2-3, Celogen Az 1-2, modified alta-mud 25-35, water are appropriate.

Described modified alta-mud is made by following methods:

Bentonite is put into 490-520 ℃ of calcining 3-4 hour, take out, cooling, put into the 10-12% hydrochloric acid solution and soaked 3-4 hour, take out, clean the oven dry pulverize with pure water; Add again the aluminium nitride that is equivalent to bentonite weight 35-40%, the alum powder of 2-3%, the zeolite powder of 2-3%, the hypericum japonicum powder of 15-18%, mix and blend 30-40 minute, and then spray into the MTES that is equivalent to bentonite weight 2-5%, stirred 60-80 minute under 12000-15000 rev/min, and get final product.

The preparation method of described aluminium vanadine filter core is characterized in that comprising the following steps:

With each mixing of materials, vacuum pugging, then, extrusion modling was first dried by the fire 3-4 hour under 40-50 ℃, then sent into subregion sintering in continuous tunnel furnace, and a district: temperature 100-120 ℃, time 3-4 hour; 2nd district: 160-175 ℃, time 2-3 hour; 3rd district: 340-360 ℃, time 2-3 hour; After cooling, take out, send in the hydrogen peroxide solution of 10-15% and soaked 1-2 days, clean oven dry and get final product.

It is major ingredient that the present invention adopts polytetrafluoroethylene (PTFE), have the advantages such as acidproof, alkaline-resisting, corrosion-resistant, can be used for various adverse circumstances, have that purification efficiency is high, high temperature resistant, the pressure loss is little, corrosion-resistant, long service life, remove the outstanding advantages such as airborne micronic dust.The present invention can be used for the air filtration of air handling system, also can be used for water filtration, can also be used for the air-breathing filtration of automobile filter, be applicable to various environment abominable places.

The specific embodiment

A kind of aluminium vanadine filter core, made by the raw material of following weight portion (kilogram):

Polytetrafluoroethylene (PTFE) 14, Kynoar 4, kaolin 6, aluminium vanadine 12, activated carbon powder 32, copper powder 2, magnesia 5, sodium acid carbonate 2, ammonium carbonate 2, fatty alcohol polyoxyethylene ether sulfate 1, aluminate coupling agent DL-411 6, phenyl trichlorosilane 3, Celogen Az 2, modified alta-mud 35, water are appropriate.

Described modified alta-mud is made by following methods:

Bentonite is put into 490-520 ℃ of calcining 3-4 hour, take out, cooling, put into the 10-12% hydrochloric acid solution and soaked 3-4 hour, take out, clean the oven dry pulverize with pure water; Add again the aluminium nitride that is equivalent to bentonite weight 40%, 3% alum powder, 3% zeolite powder, 18% hypericum japonicum powder, mix and blend 30-40 minute, and then spray into the MTES that is equivalent to bentonite weight 5%, stirred 60-80 minute under 12000-15000 rev/min, and get final product.

The preparation method of aluminium vanadine filter core comprises the following steps:

With each mixing of materials, vacuum pugging, then, extrusion modling was first dried by the fire 3-4 hour under 40-50 ℃, then sent into subregion sintering in continuous tunnel furnace, and a district: temperature 100-120 ℃, time 3-4 hour; 2nd district: 160-175 ℃, time 2-3 hour; 3rd district: 340-360 ℃, time 2-3 hour; After cooling, take out, send in the hydrogen peroxide solution of 10-15% and soaked 1-2 days, clean oven dry and get final product.

Sample important technological parameters of the present invention is: heat shock resistance: 350 ℃-20 ℃ air-cooled does not once split; 250 ℃ of maximum operation (service) temperatures.The technical indicator of exhaust gas purification and treatment device is: capture micronic dust efficient 〉=99%; Outlet discharging soot dust granule substrate concentration≤30mg/m3; The dust granules minimum grain size scope 1-10 μ m that catches.

Claims (2)

1. aluminium vanadine filter core is characterized in that being made by the raw material of following weight portion:

Polytetrafluoroethylene (PTFE) 12-14, Kynoar 4-6, kaolin 4-6, aluminium vanadine 10-12, activated carbon powder 32-35, copper powder 1-2, magnesia 3-5, sodium acid carbonate 2-3, ammonium carbonate 1-2, fatty alcohol polyoxyethylene ether sulfate 1-2, aluminate coupling agent DL-411 4-6, phenyl trichlorosilane 2-3, Celogen Az 1-2, modified alta-mud 25-35, water are appropriate;

Described modified alta-mud is made by following methods:

Bentonite is put into 490-520 ℃ of calcining 3-4 hour, take out, cooling, put into the 10-12% hydrochloric acid solution and soaked 3-4 hour, take out, clean the oven dry pulverize with pure water; Add again the aluminium nitride that is equivalent to bentonite weight 35-40%, the alum powder of 2-3%, the zeolite powder of 2-3%, the hypericum japonicum powder of 15-18%, mix and blend 30-40 minute, and then spray into the MTES that is equivalent to bentonite weight 2-5%, stirred 60-80 minute under 12000-15000 rev/min, and get final product.

2. the preparation method of aluminium vanadine filter core according to claim 1 is characterized in that comprising the following steps:

With each mixing of materials, vacuum pugging, then, extrusion modling was first dried by the fire 3-4 hour under 40-50 ℃, then sent into subregion sintering in continuous tunnel furnace, and a district: temperature 100-120 ℃, time 3-4 hour; 2nd district: 160-175 ℃, time 2-3 hour; 3rd district: 340-360 ℃, time 2-3 hour; After cooling, take out, send in the hydrogen peroxide solution of 10-15% and soaked 1-2 days, clean oven dry and get final product.