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Preparation method of high-efficiency and low-resistance molded air purification material

An air purification material and high-efficiency technology, applied in chemical instruments and methods, other chemical processes, chemical/physical processes, etc., can solve the problem of reduced catalytic activity, easy aggregation and destruction of active components, and small particle purification materials that cannot overcome airflow resistance. Oversized problems, to achieve the effect of reducing usage, high adsorption efficiency and effective capacity, and convenient replacement

Active Publication Date: 2014-10-08
AIKANG AIR PROCESSING SYST BEIJING +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the wetting and curing process, the active components of the catalyst are easily aggregated and destroyed, which greatly reduces the catalytic activity
Moreover, the above-mentioned small particle purification materials directly glued and formed still cannot overcome the shortcoming of relatively large airflow resistance.

Method used

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  • Preparation method of high-efficiency and low-resistance molded air purification material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] 1. Materials and tools: honeycomb nylon mesh, thickness 10mm; broken desulfurization activated carbon, particle size 0.3-0.5mm; EVA rubber powder, softening temperature 80°C; enamel plate, depth 50mm.

[0022] 2. Preparation process: first heat the EVA to 140°C and melt it into a liquid state for later use; soak the nylon net in the melted liquid EVA hot-sol for a while, take it out, cool it rapidly, and evenly attach a layer of cured EVA hot-sol to the nylon net; The nylon mesh with cured EVA hot melt is placed in the enamel tray, and the small particle desulfurization activated carbon is filled into the container until the desulfurization activated carbon completely covers the nylon mesh; the enamel tray is placed in the oven, and the temperature of the oven is set at 130°C. Bake for 2 hours, take the container out of the oven, and cool it to room temperature in the air; take out the nylon mesh from the container, and remove the excess desulfurization activated carbon ...

Embodiment 2

[0024] 1. Materials and tools: honeycomb ceramics, thickness 30mm; activated alumina powder, particle size less than 200 mesh; water-soluble phenolic resin glue; enamel plate, depth 50mm.

[0025] 2. Preparation process: first dissolve and dilute the water-soluble phenolic resin glue with water into a liquid state for later use; soak the honeycomb ceramics in the liquid glue for a while, and take out a layer of glue evenly on the honeycomb ceramics; Fill the enamel pan with activated alumina powder until the activated alumina powder completely covers the honeycomb ceramics; place the enamel pan in an oven, set the temperature of the oven at 180°C, bake for 2 hours, and remove the container from the oven Take it out and cool it to room temperature in the air; take out the honeycomb ceramics from the container and remove the excess activated alumina powder. At this time, a layer of activated alumina powder has evenly adhered to the honeycomb ceramics to form the required Honeyco...

Embodiment 3

[0027] 1. Materials and tools: loose non-woven felt, thickness 3mm; non-woven fabric with hot-melt glue spots on one side; broken activated carbon, particle size 0.3mm; EVA rubber powder 40-60 mesh, softening temperature 80°C; hot pressing roll.

[0028] 2. Preparation process: First, hot-press the non-woven fabric with hot-melt adhesive dots on one side and the non-woven felt for later use; mix the crushed activated carbon and EVA rubber powder at a ratio of 10:1, and spread evenly on one side covered with On the non-woven felt of non-woven fabrics, the amount of activated carbon is controlled to about 200g / m 2 , covered the non-woven fabric with hot melt adhesive dots on the non-woven felt sprinkled with activated carbon, and cooled rapidly after hot pressing at 160°C to obtain a soft plate-shaped activated carbon material with a thickness of about 3 mm and coated with non-woven fabric on both sides. The material can be folded into a filter to expand the filtering area and ...

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Abstract

The invention discloses high-efficient low-resistance molding air purification material and a preparation method of the high-efficient low-resistance molding air purification material. The high-efficient low-resistance molding air purification material can be used for chemical industry, catalysis, environment protection, and poison filter ventilating devices. The high-efficient low-resistance molding air purification material is composed of framework support material and granulated or powder-shaped purification material. The preparation method of the high-efficient low-resistance molding air purification material includes the following steps of evenly adhering the granulated or powder-shaped purification material to the framework support material of a certain shape through hot glue and forming a firm molding integrate structure. The prepared purification material in a molding structure can keep original purification activity of granules basically invariant. The prepared purification material in a molding structure can not only have high efficiency of granule purification material but also reduce airflow resistance because of a loose framework. The prepared purification material in a molding structure further avoids that vibration in the process of transportation and utilization leads the material in a filling layer to sink to form a phenomenon of short circuit of channeling.

Description

technical field [0001] The invention relates to a molded air purification material and its preparation technology. The material and the purification filter prepared by using the material can be used in the fields of chemical industry, environmental protection, catalysis and anti-virus. Background technique [0002] During the use of granular air purification materials, especially in air-conditioning boxes or industrial gas purification processes, due to the limitation of fan pressure head and resistance energy consumption, it is often necessary to use larger particles (usually columnar with a diameter of 4mm) carbon), while the small outer surface of the large-particle purification material and the influence of intra-particle diffusion make the adsorption layer (ineffective layer) of the large-particle purification material thicker, reducing the adsorption reaction efficiency and the effective utilization of the purification material. Especially when the air flow rate throu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/20B01J20/30B01J39/00
Inventor 马兰李隆峰栗丽
Owner AIKANG AIR PROCESSING SYST BEIJING
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