KR200239778Y1 - The air cleaner filter - Google Patents

Abstract

The present invention relates to an air purifying filter having a harmful gas and dust removal function, and more particularly, any one of activated carbon and KI, NiCl ₂ , FeCl ₃ , MnCl ₂ , CaCl _2, etc. Alternatively, impregnated activated carbon, zeolite, or illite, impregnated with two or more substances by impregnation, is used as a filter solid, and the upper filter material and the lower filter material are composed of a nonwoven fabric having a pore smaller than the particle size of the filter particle. Consists of a nonwoven fabric with a pore size that can be inserted into the three-dimensional insert, sprinkled the filter particles with a hopper into the middle filter material, and then laminated the upper filter material, the middle filter material and the lower filter material in turn, and then the laminate is threaded by needle punching. As the air purifying filter formed to fix the laminate, no adhesive is used to impair the performance of the filter particles. It can improve the air purifying ability of woven fabric and filter body to the maximum, and it is possible to control the pressure loss, which is the pressure difference of the air passing through the filter, by freely controlling the size of the filter body. The present invention relates to an air purifying filter applicable to an industrial site.

Description

Filter for air purification {The air cleaner filter}

The present invention relates to an air purifying filter having a harmful gas and dust removal function, and more particularly, any one of activated carbon and KI, NiCl ₂ , FeCl ₃ , MnCl ₂ , CaCl _2, etc. Alternatively, impregnated activated carbon, zeolite, illite, etc., impregnated with two or more substances by impregnation, are used as filter particles. The upper filter material and the lower filter material are composed of a nonwoven fabric having a pore smaller than the particle size of the filter particle, and the intermediate filter material is filtered. Consists of a nonwoven fabric with a pore size that can be inserted into the three-dimensional insert, sprinkled filter filtration through the hopper to the middle filter material, and then laminated the upper filter material, the middle filter material and the lower filter material in turn and then laminated the laminate by needle punching method It relates to an air purification filter formed by fixing.

Conventional air purification filters have been used for mixing the activated carbon and a polymer adhesive, such as an air purification filter extruded in a honeycomb shape, or a filter bonded to the nonwoven fabric by applying an adhesive on both sides of the nonwoven fabric. However, in the case of the honeycomb-extruded filter, there is an advantage that the adsorption performance of activated carbon can be utilized to the maximum, but the technical difficulty of the honeycomb molding and the economical problems thereof are large and the scope of application is limited, so that only a special device is used. There is a problem that can be used, the filter which bonded activated carbon to the nonwoven fabric is simple and versatile, but the amount of activated carbon adhered by the adhesive is small and the adhesive blocks the pores of the activated carbon so that the adsorption performance of harmful gas or dust There is a problem that it is impossible to control the particle size of a wide range of activated carbon.

The present invention is to solve the problems of the air purification filter, the non-woven fabric and the filter solid because it is free to control the pressure loss of the air passing through the filter by controlling the particle size of the filter, and does not use an adhesive that inhibits the performance of the filter solid The purpose is to maximize the air purification capacity of the.

In order to achieve this purpose, a nonwoven fabric made of synthetic fibers such as polyester and polyethylene is used as the filter material, and any one of activated carbon and KI, NiCl ₂ , FeCl ₃ , MnCl ₂ , CaCl _2, etc. Or impregnated activated carbon, zeolite, illite, etc., in which two or more substances are impregnated by impregnation. The upper filter material and the lower filter material use a nonwoven fabric having a smaller pore size than the filter body, and the middle filter material can be inserted into the filter body. The present invention has a feature of using a nonwoven fabric having a pore size to fill the pores of the intermediate filter material, and then use needle punching to entangle the yarns so that the laminates are fixed and compressed.

1 is a cross-sectional view of the present invention filter.

2 is a manufacturing process of the filter of the present invention.

<Brief Description of Symbols in Drawings>

1. Upper filter material 2. Middle filter material

3. Lower filter material 4. Filter

5. Laminate 6. Hopper

7. Needle punching 8a, 8a ', 8b, 8b', 8c, 8c ', 8d, 8d'. roller

9. Thread

Referring to the configuration of the subject innovation filter in detail as follows.

The present invention is a filter for air purification provided with a non-woven fabric and a filter body, the filter is the middle filter material 2 and the lower filter material 3, the upper filter material (1) and the filter body (4) is inserted as shown in FIG. Is laminated | stacked in order and consists of the laminated body 5 fixed with the yarn 9. As shown in FIG.

The filter medium of the laminated body 5 is for collecting dust and has a fiber thickness of 0.1 to 8.0 denier (polyethylene, polystyrene, polypropylene, polyester, polyamide-based, melt blown, long fibers such as wool material) Or a single fiber alone or mixed with a nonwoven fabric (preferably a nonwoven fabric comprised of polyethylene to polypropylene in a ratio of 6 to 4), and the upper filter material 1 and the lower filter material 3 are intermediate filter materials 2 ) Is used to form a smaller pore size than the filter body (4) so that the filter body (4) is inserted into the outside, the intermediate filter material (2) is a pore size that can be inserted into the filter body (4) Equipped with a non-woven fabric having.

The filter particles 4 have a particle size ranging from 8 to 200 mesh, and include ammonia (NH ₃ ), sulfur dioxide (SO ₂ ), hydrogen sulfide (H ₂ S), benzene (C ₆ H ₆ ), and methyl. It is for removing harmful gas such as mercaptan (CH ₃ SH), and it has a large number of pores on the surface of the particles, so that activated carbon has adsorptive properties of harmful gas molecules, KI, NiCl ₂ , FeCl ₃ , MnCl _{2 on the} surface of activated carbon , Any one of impregnated activated carbon, zeolite, and elite impregnated with one or two or more substances such as CaCl ₂ and the like, and the filter medium (4) is sprayed on the intermediate filter material (2) to It is inserted between the pores, and can freely adjust the particle size of the filter particles (4) inserted into the intermediate filter material (2) when filling the small size of the filter particles in the air during filtration of harmful gas between the stack (5) Adsorption of harmful gases increases, but air is unlikely to pass The difference in pressure loss before and after the filter increases, whereas when the particle size of the filter body 4 is increased, air is more likely to pass through the filter. The phenomenon occurs. Therefore, the filter of the present invention is capable of controlling the pressure loss of the air passing through the filter by freely controlling the particle size of the filter body 4, so that the pressure loss is appropriate and the excellent gas adsorption power can be manufactured according to the surrounding conditions and circumstances. .

The manufacture of the filter of the present invention is as follows.

The filter of the present invention comprises a roller (8a) (8a ') (8b) (8b') (8c) of the upper filter material (1), the middle filter material (2) and the lower filter material (3) composed of a nonwoven fabric as shown in FIG. (8c '), respectively, and through the hopper (6) to sprinkled the filter particles (4) having a particle size range of 8 ~ 200 mesh (gap) between the pores of the intermediate filter material (2), After stacking the filter media through the rollers 8d and 8d 'in order to prevent the adsorbing force of the filter media 4 from being lowered by the adhesive, and to control the particle size freely, the filter media 4 can be pulled or flowed to one side. In order to prevent the laminate 5 from being entangled with the seal 9 by the needle punching 7 and formed into an air purifying filter, the thickness may be 1 to 20 mm if necessary, and heat instead of the needle punching method. It is also possible to squeeze and fix by welding

On the other hand, the completed air purification filter collects dust from the upper filter material (1) and the lower filter material (3) that is made of non-woven fabric when dust and harmful gas passes between the laminate (5), in the case of harmful gas Is adsorbed to the pores of the filter body 4 of the intermediate filter material 2, and since the adhesive is adsorbed to the pores of the filter body 4 by not using an adhesive, the adsorption force of the filter body 4 is not lowered. It has high removal efficiency of harmful gas, and it is possible to freely control the particle size of the filter particles (4) inserted in the intermediate filter material (2), so it is easy to control the pressure loss, and it is possible to manufacture an air purifying filter having excellent adsorption power with low pressure loss. In addition, since the laminated body 5 is made of synthetic fibers, it is easy to cut and process, and thus it can be widely used for air purification filters for general life, dust masks or gas masks for industrial sites. The.

As described above, according to the present invention, the filter body is not adhered by the adhesive, thereby reducing the adsorption power of dust and harmful gases due to the adhesive, thereby improving the air purifying ability, and before and after passing through the filter by freely controlling the particle size. It is possible to freely control the pressure loss afterwards, so that it is possible to manufacture an air purifying filter with moderate pressure loss and excellent adsorption of harmful gases.The filter is composed of synthetic fibers so that it can be cut and deformed in a free shape. B. It can be widely used for industrial dust mask or gas mask at industrial sites.

Claims (2)

In the air purifying filter provided with the nonwoven fabric and the filter granule, the upper and lower filter layers of the upper and lower layers in which the pores smaller than the filter granules 4 are formed so that the filter granules 4 inserted in the intermediate filter element 2 do not escape. (1) and the lower filter material (3), the intermediate filter material (2) in which the pores larger than the filter body (4) are formed so that a large amount of the filter body (4) can be inserted between the pores, and a laminate thereof (5). ) Is a filter for air purification, characterized in that formed in a structure fixed to the seal (9) by the needle punching (7) to enable the pressure loss control by freely adjusting the particle size. The air purifying filter according to claim 1, wherein the laminate (5) is used for a dust mask or a gas mask.