JPH0576521U - Deodorizing element - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a deodorizing element having a long life and excellent strength. [Structure] One of a fibrous activated carbon paper and a powdered activated carbon paper is used as a plane paper 1, and the other one is used as a corrugated paper 2 having a plurality of ridges. Flat paper 1 and corrugated paper 2 are alternately laminated with the ridge lines in the same direction, and a large number of small through holes 4 are formed between both end surfaces.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a deodorizing element suitable for adsorbing odorous substances generated in the living environment.

[0002]

[Prior Art]

 A deodorizing element formed by stacking a number of corrugated cardboards on which flat sheets containing fibrous activated carbon are laminated on one or both sides of a corrugated sheet containing fibrous activated carbon, or by spirally winding the corrugated sheet in a special manner. It is proposed in Japanese Patent Publication No. 59-35341. The fibrous activated carbon used in this deodorizing element has a remarkably large surface area compared to granular activated carbon and has a very high adsorption rate. Therefore, harmful gas such as organic solvent vapor, Efficiently adsorb the above harmful gases and sulfur malodorous gases contained in the air by passing nitrogen oxides, sulfur oxides, and sulfur malodorous gases such as air containing hydrogen sulfide and methyl mercaptan. It is extremely useful for treating exhaust gas.

However, although the activated carbon has a high adsorption rate, it takes a short time until the adsorption amount is saturated, and the filter has a problem that the exchange cycle is short. In addition, in order to improve the deodorizing performance of fibrous activated carbon paper, it is necessary to minimize the mixing ratio of binders, paper strengthening agents, etc. Therefore, its strength is weak and its shape when used for corrugated paper. Was difficult to maintain, and in some cases cracked.

[0004]

[Problems to be solved by the device]

 An object of the present invention is to provide a deodorizing element that solves the above problems and can be used for a long period of time and has excellent strength.

[0005]

[Means for Solving the Problems]

 The present inventors have arrived at the present invention as a result of extensive studies to solve the above problems. That is, in the present invention, one of the fibrous activated carbon paper and the powdered activated carbon paper is used as the plane paper 1, and the other one is used as the corrugated paper 2 having a plurality of ridges, and the plane paper 1 and the corrugated paper 2 are used as described above. The gist of the present invention is a deodorizing element formed by alternately laminating ridges in the same direction and forming a large number of small through holes 4 penetrating between both end faces.

Embodiments of the present invention will be described below with reference to the drawings.

The deodorizing element shown in FIG. 1 comprises a flat paper 1 formed of either fibrous activated carbon paper or powdered activated carbon paper, and a corrugated paper 2 formed of the other one of the corrugated paper 2. As shown in Fig. 3, they are bonded together at the crests to form a long single-sided molded body whose ridge lines are oriented almost in the width direction, and then this single-sided molded body is wrapped around the core material 3 to form a large number of small transparent pieces. It has a cylindrical shape with the hole 4 penetrating between both end faces. In the example of FIG. 1, the single wave molded body is wound around the core material 3, but only the single wave molded body may be wound around without using the core material 3.

When forming the single-sided molded body shown in FIG. 3, powdered activated carbon paper may be used for either the flat paper 1 or the corrugated paper 2, but the corrugated paper 2 is better than the flat paper 1. Since strength is required, it is preferable to use powdered activated carbon paper with high strength for the corrugated paper 2.

Next, the deodorizing element shown in FIG. 3 is a quadrangular prism, which is obtained by cutting a single-sided molded body into an appropriate length and laminating and molding it. In the case of a square column as in the example of Fig. 3, the deodorizing element does not deform even if it is slightly pressed from the end surface or other surface, and therefore stacking or other handling is required without putting it in the protective frame. It can be transported and used with confidence.

The fibrous activated carbon paper used in the present invention has a diameter of 5 to 20 μm and a length of about 1 to 20 mm, 70 to 90% by weight of fibrous activated carbon, and 20 to 5% by weight of pulp, natural fiber or synthetic fiber. %, Binder is made at a rate of 10 to 5%, and a suitable thickness is about 0.1 to 0.3 mm. In addition, powdered activated carbon paper is produced by making 70 to 90% by weight of powdered activated carbon having a particle size of 200 mesh or less, 20 to 5% by weight of pulp, natural fiber or synthetic fiber, and 10 to 5% by weight of binder. Therefore, the appropriate thickness is about 0.1 to 0.3 mm.

The deodorizing element of the present invention is mainly composed of fibrous activated carbon having a large specific surface area and a high adsorption rate, powder activated carbon having a large pore radius and a low adsorption rate, and Since the strength of the paper is larger than that of fibrous activated carbon paper, the strength is higher than that of the conventional deodorizing element in which both plane paper and corrugated paper are made of fibrous activated carbon paper. Can be prevented, and the usage period can be extended.

Since the deodorizing element of the present invention is composed of fibrous activated carbon paper and powdered activated carbon paper, the adsorption performance is improved as compared with the deodorizing element composed of fibrous activated carbon paper only, but the malodorous component Depending on the type, the effect may not be sufficient, and for example, it has low adsorption performance for odorous substances with low molecular weight and polarity, such as ammonia and acetaldehyde, which are the main components of the malodor generated in the living environment.

In order to improve the adsorption performance for the above-mentioned odorous substances, at least one of the fibrous activated carbon paper and the powdered activated carbon paper used in the present invention is a substance which assists the deodorizing action, for example, iron, copper, palladium. , Manganese, cobalt, nickel, zinc, silver, titanium, platinum, and other transition metals, organic substances such as phenylhydrazine and amino acids, and plant-purified substances with a natural deodorizing effect may be attached. The time of impregnation is not particularly limited, but it is preferable to impregnate fibrous activated carbon or powdered activated carbon and then paper-making it into a paper-like form from the viewpoint of the impregnation efficiency.

As described above, if the deodorizing element is constituted by a material in which at least one of the fibrous activated carbon paper and the powdered activated carbon paper is attached with a substance that assists the deodorizing action, in addition to the above-mentioned effects, A wide range of odors such as ammonia, trimethylamine, and other nitrogen-based odors, hydrogen sulfide, methyl mercaptan, and other sulfur-based odors, and lower aldehyde-based odors, such as formaldehyde and acetaldehyde, which are the main components of malodors generated in the environment It is possible to obtain a deodorizing element having an excellent effect of removing a bad odor.

[0015]

[Effect of the device]

 According to the present invention, it is possible to provide a deodorizing element that can be used for a long period of time and has excellent strength.

[Brief description of drawings]

FIG. 1 is a schematic perspective view of a cylindrical deodorizing element of the present invention.

FIG. 2 is a schematic perspective view of a square columnar deodorizing element of the present invention.

FIG. 3 is a perspective view of a single-sided molded body that constitutes the deodorizing element of the present invention.

[Explanation of symbols]

 1 Plane paper 2 Corrugated paper 3 Core material 4 Small through hole

Claims (2)

[Scope of utility model registration request] 1. A fibrous activated carbon paper or a powdered activated carbon paper is used as a flat paper (1) and the other is used as a corrugated paper (2) having a plurality of ridges, and the corrugated paper (1) and the corrugated paper are used. A deodorizing element formed by alternately stacking paper (2) with the ridge line in the same direction and forming a large number of small through holes (4) penetrating between both end surfaces. 2. The deodorizing element according to claim 1, wherein at least one of the fibrous activated carbon paper and the powdered activated carbon paper is impregnated with a substance that assists the deodorizing action.