Spherical filter material and preparation method thereof

A kind of filter material and spherical technology, applied in the field of air purification, can solve the problems of scattered ability to deal with peculiar smell, irregular shape, low efficiency, etc., and achieve the effect of efficient removal of peculiar smell, regular shape and convenient filling

Active Publication Date: 2014-12-10
TONGXIANG JIANMIN FILTER MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The currently commonly used deodorizing filter materials obviously cannot meet the requirements very well, mainly due to the low efficiency of odor removal and the lack of types of odor adsorption. More importantly, the commonly used granular filter materials are mostly irregular or cylindrical filter materials. In the process of air flowing through, it is easy to appear bias flow, which will affect the filtering effect and the performance of the whole machine
Taking the common honeycomb mesh odor filter as an example, in order to achieve the purpose of simultaneously removing a variety of odorous gases, it is often necessary to mix a variety of different particle filter materials, because the irregular shape and the difference in bulk density are difficult Mix evenly; at the same time, the commonly used columnar filter material often affects the filling uniformity and production efficiency due to the shape of the filter material during production and processing, and ultimately affects the performance of the product
[0004] In the air purification devices on the market, spherical filter materials with different functions are also used together. The spherical filter material has obvious advantages such as convenient use and uniform filter wind resistance, but its relatively small specific surface area is the biggest disadvantage of its application. The result of uniform mixing of different spherical filter materials is that the density is basically the same, and the inner layer is difficult to exert its effect; the mixing results in the dispersion of the ability to deal with odors, and the efficiency is naturally not high

Method used

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  • Spherical filter material and preparation method thereof
  • Spherical filter material and preparation method thereof
  • Spherical filter material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0032] The spherical filter material prepared in this example is 60 parts of kaolin powder with a particle size of 0.1 μm, 15 parts of persimmon tannin powder with a particle size of 10 μm, 10 parts of sepiolite powder with a particle size of 10 μm, and 5 parts of hydroxyl It is prepared from ethyl cellulose, 5 parts of guar gum, 2 parts of urea and 3 parts of polyvinylpyrrolidone. Concrete preparation process is as follows:

[0033] (1) Mix 5 parts of hydroxyethylcellulose, 2 parts of urea and 3 parts of polyvinylpyrrolidone with 60 parts of kaolin powder, roll continuously in a rolling ball coating pan, and apply evenly through an automatic sprayer Moisture makes the powder molding to form a cue ball, and the amount of water sprayed accounts for 50% by weight of the mixture;

[0034] (2) Mix 3 parts of guar gum with 15 parts of persimmon tannin powder, then roll the powder and cue balls in a rolling ball coating pan, apply water evenly through an automatic sprayer, and the ...

Embodiment 2

[0039] The spherical filter material prepared in this example is 35 parts of kaolin with a particle size of 100 μm, 20 parts of iron-manganese composite oxide with a particle size of 0.1 μm, 30 parts of modified activated carbon powder with a particle size of 45 μm, 10 parts of granular Bentonite with a diameter of 20 μm, 4.5 parts of hydroxypropyl methylcellulose and 0.5 part of urea are used as raw materials. Concrete preparation process is as follows:

[0040] (1) Mix 1.5 parts of hydroxypropyl methylcellulose, 0.5 parts of urea and 35 parts of kaolin, roll continuously in a rolling ball coating pan, apply water evenly through an automatic sprayer, and shape the powder to form a matrix Ball, the amount of water spray accounts for 60% by weight of the mixture;

[0041] (2) Mix 1 part of hydroxypropyl methylcellulose with 20 parts of iron-manganese composite oxide, then roll the powder and cue balls in a rolling ball coating pan, and use a coating with 30% water spray proce...

Embodiment 3

[0046]The spherical filter material prepared in this example is 32 parts of sepiolite powder with a particle size of 100 μm, 24 parts of iron-manganese composite oxide with a particle size of 0.5 μm, 10 parts of copper-manganese composite oxide with a particle size of 2 μm, 10 parts of Ginkgo biloba powder and tea polyphenol powder mixture with a particle size of 100 μm (mixing ratio is 1:1), 8 parts of diatomaceous earth powder with a particle size of 5 μm, 8 parts of carboxymethyl cellulose, and 7 parts of asparagus Glue, 0.5 parts of polyvinyl alcohol and 0.5 parts of ethanol are prepared as raw materials. Concrete preparation process is as follows:

[0047] (1) Mix 4 parts of squash gum, 0.5 parts of polyvinyl alcohol and 0.5 parts of ethanol with 32 parts of sepiolite powder, roll continuously in a rolling ball coating pan, and apply water evenly through an automatic sprayer to shape the powder , forming a cue ball, the amount of water sprayed accounts for 48% by weight ...

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Abstract

The invention discloses a spherical filter material which sequentially comprises a molded master ball layer, one or two or more functional adsorption layers and a porous protective layer from interior to exterior, wherein the material densities of all the layers of the spherical filter material are reduced from interior to exterior. The invention also discloses a method for preparing the spherical filter material. The spherical filter material and the method have the beneficial effects that (1) by integrating multiple odor removal functions together, the problem that a conventional odor filtering screen is single in adsorption performance or the problem of performance caused by the factor that multiple granular filter elements are non-uniformly mixed can be solved; (2) functional compounding is realized through a layer mixing mode, the densities of all the layers are reduced from interior to exterior, stable structure of the spherical filter material can be guaranteed, and different odors are removed in a layering centralized mode, so that the odor is efficiently removed; (3) due to cooperation between a pore-foaming agent and adhesive, the adsorption area and molding strength of the spherical filter material are optimized; and (4) the spherical filter material overcomes the defects that a conventional filter material is non-uniform in filling and continuous production is difficultly realized.

Description

technical field [0001] The invention relates to a spherical filter material and a preparation method thereof, and is mainly used in the field of air purification. Background technique [0002] With the development of the economy, it is inevitable to sacrifice the environment. In recent years, the deteriorating environment has become an indisputable fact, and the demand for air purification products has also shown explosive growth. Related products continue to emerge, but in terms of the two basic functions of dust removal and deodorization, deodorization is obviously more important. Difficult, because dust particles are only of size, but gases are of great variety (size, acidity, polarity, etc.). [0003] The currently commonly used deodorizing filter materials obviously cannot meet the requirements very well, mainly due to the low efficiency of odor removal and the lack of types of odor adsorption. More importantly, the commonly used granular filter materials are mostly ir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/28B01J20/30A61L9/014
Inventor 刘玉桂刘朝军臧济文王瑞
Owner TONGXIANG JIANMIN FILTER MATERIALS
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