JPH0611099Y2 - Gas adsorbent and air cleaning device using the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a gas adsorbent for adsorbing a harmful gas such as an alkaline gas, and an air cleaning device using the same.

(Prior art) In newly built buildings, minute harmful gases are constantly generated from concrete walls and interior building materials, and especially in museums and galleries, this gas causes discoloration of exhibits. Has become.

Therefore, it has been considered that the harmful gas is adsorbed and removed by an air cleaning device filled with a gas adsorbent, but the conventional gas adsorbent is composed of a fibrous synthetic resin material or the like and is relatively expensive. There are difficulties. Further, since the harmful gas is adsorbed for a long time, if the gas adsorbent is made thick, there is a drawback that the clogging is likely to occur, the harmful gas is difficult to pass through, and the gas removal efficiency is lowered.

In view of the above conventional problems, the present invention has an object to provide a gas adsorbent that is inexpensive, is less likely to be clogged, and can adsorb harmful gas efficiently, and an air cleaning device using the same. There is.

(Means for Solving the Problems) In order to achieve the above object, the first aspect of the present invention employs a configuration in which a paper material 9 formed in a porous web shape and sawdust 10 are mixed. is there.

The second aspect of the present invention employs a configuration in which the paper material 9 is made of acid paper.

A third aspect of the present invention is to provide a paper material 9 formed into a porous web in an air circulation device 15 for forcedly circulating indoor air,
A configuration is adopted in which the gas adsorbent 1 formed by mixing the sawdust 10 is filled.

(Operation) In the above configuration, while the harmful gas passes through the minute pores of the paper material 9 formed in the shape of a porous web, the gas component is adsorbed by the paper material 9 and the air is cleaned. Therefore, it is possible to surely solve the problem that the exhibits are discolored by the harmful gas in the indoor air in museums and the like.

Further, in particular, by mixing the paper material 9 and the sawdust 10, a void 14 is formed around the sawdust 10.
Since the harmful gas is allowed to smoothly pass through the inside of the paper material 9 through the voids 14, the paper material 9 does not become clogged even if the thickness of the paper material 9 is sufficiently increased. The harmful gas can be efficiently adsorbed for a long time.

(Embodiment) FIGS. 1 and 2 show a gas adsorbent 1 according to an embodiment of the present invention.
1 shows a filter A which is obtained by filling the inside of a filter casing 2 with the filter casing 2
Is a pair of perforated plate-like gas adsorbents that have a rectangular casing frame 3 and a large number of air holes 6 that close both openings of the casing frame 3 and are fixed to both openings by edge metal 4. It consists of plates 7 and 7. Also, the gas adsorbent 1
As shown in FIG. 3, the fibers are entangled with each other,
It is a mixture of cotton-like or web-like paper material 9 in which minute pores are formed inside, that is, porous web-like paper material 9 and sawdust 10 which is scraps generated when sawing timber or the like. .

Further, as shown in FIGS. 1 and 2, the gas adsorbent 1 is filled in the filter casing 2 in a state of being wrapped in a protective cloth 11 made of non-woven fabric or the like and having excellent air permeability, and the protection is performed. A wire mesh 12 for supporting the protective cloth is interposed between the cloth 11 and the adsorbent support plates 7, 7.

In the above configuration, while a harmful gas such as an alkaline gas passes through the minute pores of the paper material 9, the gas components thereof are adsorbed by the paper material 9 to clean the air.
At this time, the paper material 9 and the sawdust 10 are mixed to form a void 14 around the sawdust 10 as shown in FIG. Since the sheet material 9 can smoothly pass through, even if the thickness of the sheet material 9 is made sufficiently thick, the sheet material 9 does not become clogged and the harmful gas can be efficiently adsorbed for a long time. .

An example of the method for producing the above-mentioned paper material 9 will be described. Dissolved waste paper such as newspapers with water, kneading it in a mixer to form a paste, and further spreading it flat and drying, and then crushing it with a crusher. As a result, the paper material 9 formed in the shape of a porous web can be obtained.

In addition, since the waste paper, which is a material of the paper material 9, is usually acid-treated, the paper material 9 made of the material is naturally acidified and neutralizes alkaline gas which is a main cause of discoloration of exhibits in museums and art galleries. However, the discoloration can be prevented.

The distribution ratio of the paper material 9 and the sawdust 10 is 5: by weight.
It is 5 to 8: 2 (preferably 6: 4). When the paper material 9 is 50% or less, the harmful gas adsorption rate becomes too low.
Further, when the paper material 9 is 80% or more, it becomes difficult for gas to pass therethrough, and the gas removal efficiency decreases.

Further, since the paper material 9 and the sawdust 10 are both made of wood and have the same specific gravity, the sawdust 10 can be dispersed almost evenly inside the paper material 9, whereby the gas adsorbent 1 It is possible to make the passage rate of the gas passing through the respective parts substantially constant.

FIG. 4 shows an air purifying apparatus according to another embodiment of the present invention, in which a plurality of filters A are arranged in a housing 16 of an air circulating apparatus 15 for forcedly circulating indoor air. By operating the fan 17 provided in the lower portion of the housing 16, when the air sucked into the housing 16 from the suction holes 18 passes through the filters A, harmful gas contained therein is adsorbed and discharged. Purified air is discharged from the outlet 19 into the room.

In addition to the above filter A, as shown in FIG. 4, a deodorizing filter B filled with a deodorant (for example, activated carbon) and a dehumidifying filter C filled with a dehumidifying agent (for example, dried pumice) are arranged. You may. This can eliminate the odor and humidity peculiar to a new building.

(Advantages of the Invention) According to the first aspect of the present invention, the gas adsorbent is made of waste paper and a large amount of sawdust discharged from a sawmill, so that the gas adsorbent is manufactured at an extremely low cost. be able to.

Further, since a large number of voids are formed almost uniformly inside the paper material formed into a porous web by the sawdust, even if the thickness of the paper material is made sufficiently thick, It is possible to efficiently adsorb harmful gas for a long time without clogging.

According to the second aspect of the present invention, since the paper material is acid paper, it is possible to neutralize alkaline gas, which is a main cause of discoloration of exhibits in museums and art galleries, and prevent the discoloration.

According to the third aspect of the present invention, since the gas adsorbent is filled in the air circulation device for forcedly circulating the indoor air, the air in the entire room can be surely cleaned.

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view of a filter filled with a gas adsorbent according to an embodiment of the present invention, FIG. 2 is a longitudinal sectional view of the same, and FIG. FIG. 4 is a vertical sectional view of an air cleaning device according to another embodiment of the present invention. 1 ... Gas adsorbent, 9 ... Paper material, 10 ... Sawdust, 15 ... Air circulation device.

Claims (3)

[Scope of utility model registration request] 1. A gas adsorbent obtained by mixing paper material formed into a porous web and sawdust. 2. The gas adsorbent according to claim 1, wherein the paper material is acid paper. 3. An air purifier characterized in that an air circulation device for forcedly circulating indoor air is filled with a gas adsorbent obtained by mixing paper material formed into a porous web and sawdust. apparatus.