JP2552144Y2 - Thin honeycomb filter - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a honeycomb filter used for treatment such as purification of exhaust gas, dehumidification, deodorization and the like, and more particularly to improvement of a thin honeycomb filter.

[0002]

2. Description of the Related Art Conventionally, this kind of honeycomb filter is
As shown in FIG. 8 , a partition plate 1 made of a fibrous paper material such as porous ceramic paper and a corrugated plate 2 are alternately overlapped, and the overlapped portion is bonded with an adhesive to form a catalyst or a catalyst. What is constituted by attaching a deodorant or the like is generally used.

[0003]

The honeycomb laminated body having the above-described structure has a very small bonding area between the partition plate and the corrugated plate, so that it is easy to peel off, has a small overall strength, and is easily broken.
In particular, in the case of a thin honeycomb filter made by slicing the above-mentioned honeycomb laminate into a width of 3 to 10 mm, at the time of manufacturing, a catalyst or a deodorant is attached to the honeycomb laminate, or a crack is generated from the laminated portion due to a product replacement operation. Sometimes.

[0004]

The purpose of the present invention is to eliminate the structural defects of the above-mentioned conventional thin honeycomb filter, which has sufficient structural strength and does not cause peeling or cracking. An object is to provide a thin honeycomb filter.

[0005]

Means for Solving the Problems In order to achieve the above object, the present invention provides a thin honeycomb filter comprising alternately laminated partition plates and corrugated plates made of fibrous paper. The gist has a structure in which at least the laminated voids at both ends are filled with an adhesive filler.

[0006]

In the thin honeycomb filter having the above structure,
Since the partition plates are firmly integrated with each other and the partition plate and the corrugated plate at both ends in the corrugated direction by the adhesive filler, the structural strength of the laminate is remarkably increased.

[0007]

1 to 3 show an embodiment in which the present invention is applied to a thin honeycomb filter. In the figure, 1 is a partition plate made of fibrous paper, and 2 is a corrugated plate. The thin laminated body composed of the partition plate and the corrugated plate is obtained by slicing a large laminated body previously manufactured to a required size, but may be manufactured to be thin from the beginning.

[0008] In the above-mentioned laminate, the adhesive filler 3 is placed in a lamination space (honeycomb eyes) near both ends in the corrugated direction of the corrugated plate.
Is filled, and the partitioning plates are integrated with each other and the partitioning plate and the corrugated plate are integrated by the filler 3.

As the fibrous paper used for the partition plate and the corrugated plate, those using organic fibers such as pulp and polyester fibers, those using inorganic fibers such as ceramic fibers and glass fibers, and those using organic-inorganic mixed fibers Can be arbitrarily selected and used.

In this embodiment, a polyamide-based resin adhesive (trade name “Tomide # 558”, manufactured by Fuji Kasei Kogyo Co., Ltd.) is used as the adhesive filler, and the adhesive is filled with a predetermined viscosity (200 ° C., 300-600 CP). ), And poured into the eyes of the honeycomb and cured to form a packed layer having a width of about 5 mm.

The adhesive filler is preferably a polyamide-based, polyethylene-based, or polyolefin-based thermoplastic resin, and is arbitrarily selected depending on its properties such as softening point, viscosity after melting, and hardness and strength after curing. be able to.

With the above structure, the partition plates are integrated with each other and the partition plate and the corrugated plate by the adhesive filler 3 at both ends in the corrugated direction of the corrugated plate, so that the structural strength of the laminate is greatly increased. In particular, it is extremely effective in preventing separation between the partition plate and the corrugated plate, and there is no possibility of causing cracks.

The above embodiment is an example in which an adhesive filler is filled in two places at both ends of the laminate. However, depending on the thickness of the laminate in the passage direction, the size of the cross section, etc. Filling material may be filled, and the filling width can be adjusted. The adhesive filler may be filled in a large laminate before slicing, or may be filled in a laminate after slicing.

FIGS. 4 and 5 show another embodiment of the present invention. In this embodiment, the adhesive filler 3 is filled on both end faces in the corrugated direction of the laminate. According to this configuration, hindrance of the honeycomb passage due to the adhesive filler is minimized.

A drop damage test was performed on the product obtained in each of the above embodiments and the conventional product not filled with the adhesive filler, and it was found that the conventional product only dropped from a height of 1.5 m. Although it broke, none of the products of the present invention broke. Although the above-mentioned embodiment shows an example in which the partition plate and the corrugated plate are flatly laminated, the present invention is applied to a honeycomb structure in which the present invention is applied to a spirally wound laminated honeycomb structure. The effect is obtained. That is, FIG.
As shown in FIG. 7 and FIG.
In the same way as the laminated type,
Increasing the strength of the honeycomb structure by filling the filler
be able to. Also, reduce the amount of adhesive used during winding.
Can be lost or wound without adhesive
Becomes

[0016]

[Effect of the invention] As described above, according to the invention,
Significant improvement in the structural strength of the thin honeycomb filter made of fibrous paper can be realized. The conventional honeycomb filter may be damaged when the filter is replaced or handled, but the honeycomb filter of the present invention does not have to worry. Moreover, in the case of the thin honeycomb filter, an operation of handling it in a case is required to prevent cracking. However, the thin honeycomb filter of the present invention can be handled as it is, and the case may be very simple.

[Brief description of the drawings]

FIG. 1 is a front view of a thin honeycomb filter showing one embodiment of the present invention.

FIG. 2 is a partially cut plan view of the thin honeycomb filter.

FIG. 3 is a side view of the thin honeycomb filter.

FIG. 4 is a front view of a thin honeycomb filter showing another embodiment of the present invention.

FIG. 5 is a plan view of the thin honeycomb filter.

FIG. 6 shows a thin honeycomb fill showing another embodiment of the present invention.
FIG.

FIG. 7 shows a thin honeycomb fill according to another embodiment of the present invention.
FIG.

FIG. 8 is a front view of a conventional honeycomb filter.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Partition board 2 Corrugated board 3 Adhesive filler

Claims (2)

(57) [Scope of request for utility model registration] 1. A thin honeycomb filter formed by alternately laminating partition plates and corrugated plates made of fibrous paper, wherein an adhesive filler is filled into lamination voids corresponding to at least both ends in the corrugated direction of the laminate. A thin honeycomb filter characterized by being made. 2. The thin honeycomb filter according to claim 1, wherein a thermoplastic resin adhesive is used for the adhesive filler.