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Activated carbon filter element and preparation method thereof

A technology of activated carbon filter element and activated carbon particles, which is applied in chemical instruments and methods, separation methods, filtration and separation, etc., can solve the problems of affecting the filtration effect, less number of flow channels, dust emission, etc., so as to achieve controllable molding process and improve filtration efficiency. , the effect of controllable density

Active Publication Date: 2022-07-01
HANGZHOU COBETTER TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the activated carbon filter element with this structure, the activated carbon part is compacted and cannot form a three-dimensional space structure, resulting in low flow rate, large pressure loss, and even clogging when using filtration; In the solid activated carbon filter element, the number of flow channels that can be generated during filtration is very small, so that some activated carbon particles cannot achieve an effective filtering effect. If the filtration pressure is forcibly increased to increase the filtration flow rate, some activated carbon particles will be filtered. The possibility of dispersing, adding activated carbon particle impurities in the filtrate, affecting the filtration effect
Furthermore, in the prior art, this type of filter element is mainly prepared by dry heating and extrusion. In this way, a large amount of dust is emitted during the preparation process, causing serious pollution in the workshop, affecting the environment and requiring more operators. The operation and the presence of dust also have a great impact on the health of the operating workers

Method used

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  • Activated carbon filter element and preparation method thereof
  • Activated carbon filter element and preparation method thereof
  • Activated carbon filter element and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0049] An activated carbon filter element comprises a central rod and a filter layer disposed outside the central rod, wherein the filter layer includes a supporting fiber web formed by fibrillated cellulose fibers, a bonded fiber web formed by urea fibers, and a chitosan fiber web. The adsorption fiber web formed by sugar fiber as the raw material and the activated carbon particles distributed in the middle of the above fiber web. The outside of the central rod is wrapped with PP non-woven fabric, and the outside of the filter layer is wrapped with PE and PET composite non-woven fabric. In order to prevent the filter element from falling off the filter layer and entering the filtrate under the working conditions of high pressure and flow rate, the filtration effect is affected. At the same time, it is also convenient for the filter element to be transported and stored, the surface is relatively clean, and the activated carbon particles will not fall off. For the filter layer,...

Embodiment 2

[0092] An activated carbon filter element comprises a central rod and a filter layer disposed outside the central rod, wherein the filter layer includes a supporting fiber web formed by fibrillated cellulose fibers, a bonded fiber web formed by urea fibers, and a chitosan fiber web. The adsorption fiber web formed by sugar fiber as the raw material and the activated carbon particles distributed in the middle of the above fiber web. The outside of the central rod is wrapped with PP non-woven fabric, and the outside of the filter layer is wrapped with PE and PET composite non-woven fabric. In order to prevent the filter element from falling off the filter layer and entering the filtrate under the working conditions of high pressure and flow rate, the filtration effect is affected. At the same time, it is also convenient for the filter element to be transported and stored, the surface is relatively clean, and the activated carbon particles will not fall off. For the filter layer,...

Embodiment 3

[0113] An activated carbon filter element comprises a central rod and a filter layer disposed outside the central rod, wherein the filter layer includes a supporting fiber web formed by fibrillated cellulose fibers, a bonded fiber web formed by urea fibers, and a chitosan fiber web. The adsorption fiber web formed by sugar fiber as the raw material and the activated carbon particles distributed in the middle of the above fiber web. The outside of the central rod is wrapped with PP non-woven fabric, and the outside of the filter layer is wrapped with PE and PET composite non-woven fabric. In order to prevent the filter element from falling off the filter layer and entering the filtrate under the working conditions of high pressure and flow rate, the filtration effect is affected. At the same time, it is also convenient for the filter element to be transported and stored, the surface is relatively clean, and the activated carbon particles will not fall off. For the filter layer,...

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Abstract

The invention relates to an activated carbon filter element, comprising a cylindrical central rod and a filter layer arranged outside the filter layer, wherein the filter layer includes activated carbon particles and fibers coated on the outside of the activated carbon particles, and the innermost layer of the filter layer The density is set at 0.3g / cm 3 ‑0.5g / cm 3 In between, the density of the outermost layer of the filter layer is set at 0.2g / cm 3 ‑0.4g / cm 3 and the density of the innermost layer of the filter layer is greater than the density of the outermost layer of the filter layer. The purpose to be achieved by the present invention is to provide an activated carbon filter element with a gradient product structure and taking into account the filtration effect, flow rate and strength; and at the same time to provide a relatively simple preparation method for the filter element with little pollution.

Description

technical field [0001] The invention relates to a filter element and a preparation method thereof, in particular to an activated carbon filter element and a preparation method thereof. Background technique [0002] Activated carbon filter element is a relatively common filter element product, which is mainly used to remove pollutants in water, decolorize, filter and purify liquid and gas, and also used for air purification and waste gas recovery (such as gas benzene in the chemical industry). recovery), recovery and refining of precious metals (eg absorption of gold). [0003] The common activated carbon filter has a relatively simple structure. The outside is a cylindrical shell, and the inside of the shell is filled with activated carbon material for filtering, and then the filter element is packaged. For the activated carbon filter element of this structure, the activated carbon part is compacted and cannot form a three-dimensional spatial structure, resulting in a low f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D39/20
CPCB01D39/2058B01D2239/10B01D2239/086B01D2239/0645B01D2239/0407
Inventor 贾建东惠泉李南星
Owner HANGZHOU COBETTER TECH CO LTD
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