JP2883286B2 - Deodorizing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for absorbing odor components in a gas to be treated by gas-liquid contact with a chemical solution which absorbs odor components.
It relates to a deodorizing device to be removed.

[0002]

2. Description of the Related Art As a deodorizing apparatus by gas-liquid contact, as disclosed in Japanese Patent Application Laid-Open No. Hei 4-2884897, a container is filled with a large number of irregularly shaped synthetic resin contact materials. There is known a contact layer formed in which a chemical solution sprayed from above and a gas to be treated rising from below are brought into countercurrent contact to absorb and remove odor components in the gas to be treated. According to this, since the contact material has a low specific gravity and high abrasion resistance, it can be used for a long time, and maintenance of the deodorizing device becomes easy. In addition, there is an advantage that the contact efficiency is remarkably improved because the lightweight contact material is suspended by the air flow.

[0003]

However, when the contact material is in a floating state, the thickness of the contact layer cannot be maintained uniformly over the entire surface. For this reason, the contact efficiency may be temporarily reduced due to, for example, drift.

[0004] The present invention has been devised to solve such disadvantages of the prior art, and its main objects are as follows.
An object of the present invention is to provide a deodorizing device configured so that the thickness of the contact layer can be kept constant.

[0005]

SUMMARY OF THE INVENTION According to the present invention, there is provided an object which can be floated inside a container by an upward airflow.
In a contact layer formed by filling a large number of functional and irregularly shaped synthetic resin contact materials, a chemical solution sprayed from above and a gas to be treated rising from below are brought into countercurrent contact with each other,
A deodorizing device for absorbing and removing odor components in the gas to be treated, wherein a plurality of holding bodies in which a plurality of small chambers are formed by vertical partition walls are vertically arranged inside the container, and a predetermined number of the holding bodies are provided in the small chambers. The present invention is achieved by providing a deodorizing apparatus characterized in that the contact layer is formed by filling the contact material with a margin. In particular, it is preferable that the holder is formed of a honeycomb-shaped porous body.

[0006]

According to this structure, since the contact material does not move largely in the lateral direction because of being blocked by the partition walls of the holder, the thickness of the contact layer can be maintained substantially uniformly over the entire surface. . Moreover, when the contact material holding body is a honeycomb-shaped porous body, the reduction of the volume of the contact layer due to the partition walls can be suppressed as much as possible, and a predetermined contact material filling amount can be secured.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The construction of the present invention will be described below in detail with reference to specific embodiments shown in the accompanying drawings.

FIG. 1 shows a deodorizing device constructed according to the present invention. This deodorizing apparatus is for deodorizing by oxidizing sulfur compounds, nitrogen compounds or organic substances contained in a gas to be treated, and a synthetic resin having an irregular shape is formed inside a cylindrical closed container 1. Upper and lower contact layers 3 and 4 formed by filling a large number of contact materials 2 made of aluminum, a liquid spray head 5 for spraying a chemical solution from above, and a gas ejection head 6 for ejecting the gas to be treated from below. Have.

The contact layers 3 and 4 are formed by filling a small chamber 7a of a holding body 7 made of a honeycomb-like porous body made of vinyl chloride as shown in FIG. The holder 7
Above and below, there are provided restraining bodies 8 made of wire mesh or the like so that the contact material 2 does not flow away. The contact material 2 has a particle size of 1 mm
It is made of a foamed synthetic resin material having an irregular shape in a range of up to 50 mm, and is filled in the small chamber 7a with a predetermined margin so that it can float by an upward air flow (filling rate: 10% to 90%). %).

In the deodorizing apparatus constructed as described above, the gas to be treated is introduced into the interior of the vessel 1 from the gas ejection head 6 inserted relatively below the vessel 1, and the upper and lower contact layers 3.4 are formed. The odor component is oxidized and absorbed by flowing in an upward direction and coming into countercurrent contact with a chemical solution sprayed from above. Then, the processed gas that has passed through the upper contact layer 3 and reached the upper portion thereof is recovered from the gas outlet 9 provided on the top wall of the container 1.

On the other hand, the chemical is sprayed from a liquid spraying head 5 inserted above the upper contact layer 3, flows down the two contact layers 3 and 4 and stays at the bottom of the container 1. The retained chemical liquid is recovered from the liquid outlet 10 and then returned to the liquid spray head 5 by the pump 11. The chemical solution is
It circulates while being externally replenished or replaced as needed. As this chemical solution, a solution of an oxidizing agent such as sulfuric acid or chlorine peroxide is used, but chlorine peroxide is preferable in order to automate concentration control.

When the gas to be treated is at a high temperature, the temperature is adjusted in advance by a scrubber before being sent to the gas jetting head 6. In the case where the gas to be treated is turned into white smoke during the deodorization treatment due to the high temperature, a dehydrator made of activated carbon or the like is installed at the subsequent stage.

In this embodiment, two contact layers are used. However, the present invention is not limited to this.
It may be more than layers. In addition, an inhibitor above each contact layer is not necessarily required. Furthermore, the odor component to be removed is not limited to the above-mentioned sulfur compounds and the like, and the chemical may be appropriately selected according to the odor component.

[0014]

As described above, according to the present invention, since the contact member is not largely moved in the lateral direction due to the hindrance of the partition wall of the holding member,
The thickness of the contact layer can be maintained substantially uniform over the entire surface, and a decrease in contact efficiency due to drift or the like can be prevented. Moreover, when the contact material holding body is a honeycomb-shaped porous body, the reduction of the volume of the contact layer due to the partition walls can be suppressed as much as possible, and a predetermined contact material filling amount can be secured. For this reason, the present invention can be implemented without reducing the processing capacity of the deodorizing device.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing a schematic configuration of a deodorizing apparatus to which the present invention is applied.

FIG. 2 is a perspective view showing a holder of a contact material formed of a honeycomb-shaped porous body.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Container 2 Contact material 3.4 Contact layer 5 Liquid spray head 6 Gas ejection head 7 Holder 7a Small chamber 8 Inhibitor 9 Gas outlet 10 Liquid outlet 11 Pump

Claims (2)

(57) [Claims] 1. An airflow floating inside a container by an upward airflow.
In a contact layer formed by filling a large number of playable and irregularly shaped synthetic resin contact materials, a chemical solution sprayed from above and a gas to be treated rising from below are brought into countercurrent contact with each other, What is claimed is: 1. A deodorizing device for absorbing and removing an odor component in a gas to be treated, wherein a plurality of holding bodies each having a plurality of small chambers formed by vertical partition walls are vertically arranged inside the container, and a predetermined margin is provided in the small chambers. The contact layer is formed by filling the contact material with the contact material. 2. The deodorizing apparatus according to claim 1, wherein the holding body is made of a honeycomb-shaped porous body.