CN104759153A - High-efficient composite filter material prepared by blending melt-blown polypropylene with modified quartz sand and used for sewage treatment and preparation method thereof - Google Patents

Abstract

The invention relates to a filter material used in sewage treatment and particularly relates to a high-efficient composite filter material prepared by blending melt-blown polypropylene with modified quartz sand and used for sewage treatment and a preparation method thereof. The filter material is prepared from following raw materials, by weight: 1-2 coated aldehyde oxystarch, 20-24 parts of quartz sand fine powder in 200-300 meshes, 0.2-0.5 parts of sodium polyacrylate, 30-35 parts of polypropylene, 5-8 parts of carbonized crop straw powder in 300-400 meshes, 2-3 parts of nano-montmorillonite, 1-3 parts of rosin, 1-2 parts of a silane coupling agent KH-550, 1-2 parts of sodium aluminosilicate and 30-40 parts of water. In the invention, the modified conventional filter material composite body is supported onto the modified polypropylene master batch melt-blown filaments to prepare the filter material in a complex stereoscopic network structure. The filter material is prolonged in adsorption period, is higher in removal rate, is flexible in shape, can be processed into various shapes and sizes according to the use environment and use requirements, is improved in mechanical performance, is not liable to wear and break, and is high in repeating utilization rate.

Description

High efficiency composition filtrate of a kind of sewage disposal fusion-jetting polypropylene mixing modification quartz sand and preparation method thereof

Technical field

The present invention relates to a kind of sewage disposal filtrate, be specifically related to high efficiency composition filtrate of a kind of sewage disposal fusion-jetting polypropylene mixing modification quartz sand and preparation method thereof.

Background technology

Along with socioeconomic development, water pollutions increases the weight of day by day, pollutant component and content are difficult to control more, more and more higher to the requirement of water technology, original conventional treatment material obviously can not meet needed for production, improve the efficiency of water treatment, need to increase water quality from source treatment effect, and the serviceability improving filtrate the most efficient the most direct beyond doubt method, current use comparatively widely filtrate mainly contains quartz sand filter media, ANTHRACITE FILTER MEDIA, volcanic rock filtrate and string class filtrate etc., these filtrates in use each tool are good and bad, on the whole, improve the service efficiency of these filtrates, reduce production cost and be still the problem needing to solve.

Polypropylene melt-blown material is a kind of novel filtering material, mutually tangle between its fiber, structural void is little, spatially network structure, and product flexibility is strong, can make various shape as required, have that filtration resistance is low, filter effect is high, output is high, cost is low, the not advantage such as cracky, existing research shows that it is well worth doing at sewage treatment area, however the shaping filtrate intensity of simple polypropylene melt-blown and durability poor, the adsorption capacity of dirt is had much room for improvement.

Summary of the invention

The object of the invention is to, for the deficiency of current material, organic and inorganic to polypropylene melt blown filter materials and tradition filtrate is combined, maximize favourable factors and minimize unfavourable ones, there is provided a kind of using fusion-jetting polypropylene as carrier, load has the NEW TYPE OF COMPOSITE filtrate of the organic and inorganic filtrate of high efficiency of additive capability, and this filtrate production cost is low, absorption cuts dirty effective, highly efficient durable, does not produce secondary pollution.

To achieve these goals, the technical solution used in the present invention is as follows:

A high efficiency composition filtrate for sewage disposal fusion-jetting polypropylene mixing modification quartz sand, is characterized in that: described composite filtering material is made up of the raw material of following weight portion: oxyamyli tectus aldehydum 1-2,200-300 order quartz sand fine powder 20-24, Sodium Polyacrylate 0.2-0.5, polypropylene 30-35,300-400 order charing crop powder of straw 5-8, nano imvite 2-3, rosin 1-3, silane resin acceptor kh-550 1-2, sodium aluminosilicate 1-2, water 30-40;

The preparation method of above-mentioned composite filtering material comprises following step:

(1) first oxyamyli tectus aldehydum, nano imvite, Sodium Polyacrylate are dropped in water, be heated to 25-30 DEG C, stir after soaking 50-80min, add quartz sand, charing crop powder of straw, high-speed stirred mixing 40-50min, subsequently by gained mixed material heated-air drying, remove moisture completely, be broken into 300-400 order micro mist for subsequent use;

(2) polypropylene is mixed with rosin, sodium aluminosilicate, stir in rear input double screw extruder and melt extrude granulation at 170-180 DEG C of temperature, obtain modified polypropylene agglomerate;

(3) step (1) gained material is mixed with modified polypropylene agglomerate and other residual components, drop in melt-blown non-woven former after stirring, melt is the meltblown beam spinneret orifice ejection of 200-220 DEG C through temperature, wherein orifice diameter is 50-100 μm, ejection filament stretch under the high velocity, hot air stream effect of 230-250 DEG C laggard enter receiving system, filament to be composite assembles shaping on the reception device, completely cooling after and get final product.

Beneficial effect of the present invention:

The present invention is by the oxyamyli tectus aldehydum-nano montmorillonite composite material of traditional quartz sand filter media Surface coating high-ratio surface sum absorption property, effectively raise the adsorption capacity of quartz sand filter media to pollutant, widen and cut dirty scope, and the complex of these modified traditional filtrates is carried in the fiber filaments of the melt-blown preparation of modified polypropylene agglomerate, finally collect the material obtained after being shaped and there is complicated dimensional network structure, filtrate lengthened the adsorption treatment time of dirt, higher to the removal rate of dirt, simultaneously morphologically more flexible, according to environment for use and the product preparing variform and size can be required, in addition the mechanical property of finished product also improves, not easily corrosion failure, recycling rate of waterused is high.

Detailed description of the invention

Embodiment

Below with reference to embodiment, the present invention will be further described.

A high efficiency composition filtrate for sewage disposal fusion-jetting polypropylene mixing modification quartz sand, is characterized in that: described composite filtering material is made up of the raw material of following weight portion: oxyamyli tectus aldehydum 1.6,300 order quartz sand fine powder 22, Sodium Polyacrylate 0.4, polypropylene 32,300 order charing crop powder of straw 6, nano imvite 2, rosin 2, silane resin acceptor kh-550 1.5, sodium aluminosilicate 1.4, water 35;

The preparation method of above-mentioned composite filtering material comprises following step:

(1) first oxyamyli tectus aldehydum, nano imvite, Sodium Polyacrylate are dropped in water, be heated to 25-30 DEG C, stir after soaking 60min, add quartz sand, charing crop powder of straw, high-speed stirred mixing 45min, subsequently by gained mixed material heated-air drying, remove moisture completely, be broken into 400 order micro mists for subsequent use;

(2) polypropylene is mixed with rosin, sodium aluminosilicate, stir in rear input double screw extruder and melt extrude granulation at 180 DEG C of temperature, obtain modified polypropylene agglomerate;

(3) step (1) gained material is mixed with modified polypropylene agglomerate and other residual components, drop in melt-blown non-woven former after stirring, melt is the meltblown beam spinneret orifice ejection of 215 DEG C through temperature, wherein orifice diameter is 70 μm, ejection filament stretch under the high velocity, hot air stream effect of 240 DEG C laggard enter receiving system, filament to be composite assembles shaping on the reception device, completely cooling after and get final product.

The composite filtering material grammes per square metre prepared is 205g/m ²porosity is 85%, elongation at break is 315%, and fracture strength is 16.8MPa, and bending modulus is 32.4MPa, wear rate≤0.5%, product reaches 92%, COD removal rate to ammonia nitrogen in sewage removal rate and reaches 96%, and heavy metal removal rate reaches 88%, turbidity removal rate reaches 90%, and filter cycle, comparatively conventional material on average improved 66.8%.

Claims (2)

1. a sewage disposal high efficiency composition filtrate for fusion-jetting polypropylene mixing modification quartz sand, is characterized in that: described composite filtering material is made up of the raw material of following weight portion: oxyamyli tectus aldehydum 1-2,200-300 order quartz sand fine powder 20-24, Sodium Polyacrylate 0.2-0.5, polypropylene 30-35,300-400 order charing crop powder of straw 5-8, nano imvite 2-3, rosin 1-3, silane resin acceptor kh-550 1-2, sodium aluminosilicate 1-2, water 30-40.

2. the preparation method of the high efficiency composition filtrate of a kind of sewage disposal fusion-jetting polypropylene mixing modification quartz sand as claimed in claim 1, is characterized in that, comprise following step:

(1) first oxyamyli tectus aldehydum, nano imvite, Sodium Polyacrylate are dropped in water, be heated to 25-30 DEG C, stir after soaking 50-80min, add quartz sand, charing crop powder of straw, high-speed stirred mixing 40-50min, subsequently by gained mixed material heated-air drying, remove moisture completely, be broken into 300-400 order micro mist for subsequent use;

(2) polypropylene is mixed with rosin, sodium aluminosilicate, stir in rear input double screw extruder and melt extrude granulation at 170-180 DEG C of temperature, obtain modified polypropylene agglomerate;

(3) step (1) gained material is mixed with modified polypropylene agglomerate and other residual components, drop in melt-blown non-woven former after stirring, melt is the meltblown beam spinneret orifice ejection of 200-220 DEG C through temperature, wherein orifice diameter is 50-100 μm, ejection filament stretch under the high velocity, hot air stream effect of 230-250 DEG C laggard enter receiving system, filament to be composite assembles shaping on the reception device, completely cooling after and get final product.