Filtering medium used for air cleaning, filter core and preparation method of filtering medium

A filter medium and air purification technology, which is applied in chemical instruments and methods, filtration separation, separation methods, etc., can solve the problems of poor purification effect of formaldehyde and particulate matter, and achieve the effect of simple method, avoiding damage and high removal rate

Active Publication Date: 2015-04-01
潘峰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Experts from the Beijing Air Purification Professional Committee pointed out that after testing, 80% of the

Method used

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  • Filtering medium used for air cleaning, filter core and preparation method of filtering medium
  • Filtering medium used for air cleaning, filter core and preparation method of filtering medium
  • Filtering medium used for air cleaning, filter core and preparation method of filtering medium

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preparation example Construction

[0018] The invention provides a kind of preparation method for the filter medium of air purification, comprises the following steps:

[0019] a) mixing activated carbon powder, diatomaceous earth and zeolite molecular sieve powder to obtain a mixture, the weight ratio of the activated carbon powder, diatomite and zeolite molecular sieve powder is 100~300:100~200:100~200;

[0020] b) pressing, sintering and cooling the mixture obtained in step a) in a mould.

[0021] The present invention first mixes activated carbon powder, diatomite and zeolite molecular sieve powder to obtain a mixture, and the weight ratio of the activated carbon powder, diatomite and zeolite molecular sieve powder is 100~300:100~200:100~200; preferably 130 ~280:120~180:120~180; more preferably 150~250:140~160:140~160.

[0022] In the present invention, activated carbon is a porous material with honeycomb pore structure, large specific surface area, specific surface functional groups, stable physical and c...

Embodiment 1

[0050] (1) Take hydrochloric acid modified diatomite 100g;

[0051] (2) Take medical active carbon powder 100g, the specific surface area of ​​described medical active carbon is 800m 2 / g;

[0052] (3) Take by weighing 100g of 13X zeolite molecular sieve powder;

[0053] (4) Put the above three powders into a mechanical stirrer and stir for 10 minutes to mix evenly;

[0054] (5) Fill the mixed powder into a tubular mold, press under a hydraulic pressure of 0.7 MPa, and sinter at a temperature of 260° C. for 120 minutes;

[0055] (6) Cool naturally to 50° C. and then release the mold with a siloxane uranium release agent to obtain a columnar filter element.

[0056] The prepared filter element has a diameter of 400 mm and a length of 200 mm.

Embodiment 2

[0058] (1) Take diatomite 150g;

[0059] (2) Take by weighing medical active carbon powder 200g, the specific surface area of ​​described medical active carbon is 800m 2 / g;

[0060] (3) Take by weighing 150g of 4a zeolite molecular sieve powder;

[0061] (4) Put the above three powders into a mechanical stirrer and stir for 10 minutes to mix evenly;

[0062] (5) Fill the mixed powder into a tubular mold, press under a hydraulic pressure of 0.6MPa, and sinter at a temperature of 280° C. for 130 minutes;

[0063] (6) Cool naturally to 50° C. and then release the mold with a siloxane uranium release agent to obtain a plate-shaped filter element.

[0064] The prepared filter element has a length of 400 mm, a width of 300 mm, and a thickness of 200 mm.

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Abstract

A provided preparation method for a filtering medium used for air cleaning comprises the following steps: a) mixing active carbon powder, diatomite and zeolite molecular sieve powder, so as to obtain a mixture, wherein the weight ratio of active carbon powder, diatomite and zeolite molecular sieve is 100-300:100-200:100-200; and b) performing compression, sintering and cooling on the mixture obtained in the step a) in a die. Under the synergic effect of the above raw materials, the prepared filtering medium has high formaldehyde removal rate in air, the method is simple, and the prepared filtering medium is applicable to purification of air and avoids damage of formaldehyde and other substances to human body. The prepared filtering medium is high in removal rate on particles and bacteria in air.

Description

technical field [0001] The invention relates to a filter medium for air purification and a preparation method thereof, a filter core and a purification device composed of the filter medium. Background technique [0002] Air pollution (also known as air pollution), according to the definition of the International Organization for Standardization (ISO), "air pollution (air pollution) usually refers to the entry of certain substances into the atmosphere due to human activities or natural processes, presenting sufficient concentrations, for a sufficient period of time and thereby endanger the comfort, health and welfare of persons or the environment". Air pollution refers to the presence of one or more pollutants in the air, the amount, nature and time of which will harm human, plant and animal life, damage property, or interfere with a comfortable living environment, such as the presence of odor . In other words, as long as the quantity, nature and time of existence of a cert...

Claims

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Application Information

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IPC IPC(8): B01D39/20B01J20/20B01J20/30B01D53/02B01D46/00C02F1/28C02F1/00
Inventor 潘峰栾云堂
Owner 潘峰
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