Preparation method of spherical filtering material for eliminating sulfur dioxide and mouth and nose mask using filtering material

A technology of sulfur dioxide and filter material, applied in the field of oral and nasal masks, can solve the problems of low utilization value, high operating cost, secondary pollution, etc., and achieve the effects of easy operation, prevention of secondary pollution, and reduction of breathing resistance.

Inactive Publication Date: 2018-03-16
广州尊卓环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The development and selection of flue gas purification technology should be considered from multiple perspectives such as economy, technology and environment: less investment, easy to obtain raw materials, low price and low consumption; the traditional lime / limestone gypsum method has the disadvantages of large investment, high operating costs, The process is complex, requires water and consumes a lot of water, and the desulfurization residue is CaSO 4 And a small amount of dust, low utilization value and easy to cause secondary pollution, etc., not suitable for popularization and application in our country

Method used

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  • Preparation method of spherical filtering material for eliminating sulfur dioxide and mouth and nose mask using filtering material
  • Preparation method of spherical filtering material for eliminating sulfur dioxide and mouth and nose mask using filtering material
  • Preparation method of spherical filtering material for eliminating sulfur dioxide and mouth and nose mask using filtering material

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Effect test

Embodiment 1

[0042] Kaolin powder (300 mesh) 90g Active coke (230 mesh) 110g 5A zeolite (210 mesh) 150g Modified fly ash (190 mesh) 80g The preparation method is as follows:

[0043] Weigh each raw material according to the formula amount, after mixing and stirring evenly, under the condition of adding water to the automatic sprayer to moisten, the total amount of water added accounts for 26% of the weight percentage of the powdery material, roll into balls through a pelletizing machine, and burn at 130°C After 3 hours of preparation, it becomes a porous spherical filter material, which is filled in the filter box, used as a filter element of the mouth and nose mask, and assembled into the mouth and nose mask.

Embodiment 2

[0045] Kaolin powder (340 mesh) 130g Active coke (270 mesh) 130g 5A zeolite (260 mesh) 230g Modified fly ash (210 mesh) 100g The preparation method is as follows:

[0046] Weigh each raw material according to the formula amount, after mixing and stirring evenly, under the condition of adding water to the automatic sprayer to moisten, the total amount of water added accounts for 50% of the weight percentage of the powdery material, roll into balls through a pelletizing machine, and burn at 180°C After 2.5 hours of preparation, it becomes a porous spherical filter material, which is filled in the filter box, used as a filter element of the mouth and nose mask, and assembled into the mouth and nose mask.

Embodiment 3

[0048] Kaolin powder (350 mesh) 180g Active coke (300 mesh) 160g 5A zeolite (320 mesh) 320g Modified fly ash (230 mesh) 140g The preparation method is as follows:

[0049] Weigh each raw material according to the formula amount, after mixing and stirring evenly, under the condition of adding water to the automatic sprayer to moisten, the total amount of water added accounts for 35% of the weight percentage of the powdery material, roll into balls through a pelletizing machine, and burn at 240 ° C. After 2 hours of preparation, it becomes a porous spherical filter material, which is filled in the filter box, used as a filter element of the mouth and nose mask, and assembled into the mouth and nose mask.

[0050] Table 1 Sulfur dioxide before and after treatment with the mouth and nose mask of the present invention, unit: ppm.

[0051]

[0052] As can be seen from Table 1, use the mouth and nose mask of spherical filter material of the present invention to remove SO in the ai...

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Abstract

The invention discloses a spherical filtering material for eliminating sulfur dioxide and also relates to a mouth and nose mask formed by using the filtering material. A preparation method comprises the following steps of (a) uniformly mixing kaolin, active coke, 5A zeolite and modified fly ash according to a weight ratio of (75 to 200):(90 to 180):(135 to 360):(60 to 170) to obtain a mixture; (b)rolling the mixed raw materials obtained in the step (a) into balls under the water adding wetting conditions; performing drying firing solidification to become spherical filtering materials with certain intensity and adsorption performance. Under the cooperated effects of the raw materials, a specific pelletizing process is matched, so that the adsorption area and shaping intensity of the spherical filtering materials reach the optimum; the prepared spherical filtering material has a high removal rate on sulfur dioxide in air; the filtering material is used in the mouth and nose mask, and achieves strong adsorption performance and good ventilation performance.

Description

technical field [0001] The invention relates to the field of air purification, and relates to a method for preparing a spherical filter material for sulfur dioxide removal and a mouth and nose mask using the filter material. Background technique [0002] my country's energy consumption structure is dominated by coal, which accounts for about 75% of primary energy. Among them, direct combustion is the main way of coal utilization, and the SO produced by coal combustion 2 Exhaust gas has become the main source of air pollution in our country, causing the pollution in our cities to be mainly soot-type pollution. At present, my country's total annual emission of sulfur dioxide has greatly exceeded the self-purification capacity of the environment. [0003] SO 2 Is a colorless irritating gas, the main way to invade the human body is breathing. After being stimulated by sulfur dioxide, people may have a series of symptoms such as coughing, sneezing, sore throat, chest tightnes...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20B01J20/28B01J20/30B01D53/02A62B23/02A62B23/06
CPCA62B23/02A62B23/06B01D53/02B01J20/103B01J20/12B01J20/18B01J20/20B01J20/28004B01J20/28019B01D2258/06B01D2257/302
Inventor 蒋荣平曹龙基罗喆罗志华
Owner 广州尊卓环保科技有限公司
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