KR200180165Y1 - System for purifying composite smell - Google Patents

Abstract

The present invention relates to a system for purifying and removing complex odors containing various harmful substances, and by using a gas distributor having a unique structure, each stage can be separated and processed according to odor characteristics. The wet cleaning treatment unit can be installed separately, and the adsorption treatment unit can be installed separately from the problem. The adsorption treatment unit can be installed below the wet cleaning unit, and the wet cleaning unit can be separated into a predetermined number of stages. It can be installed by stacking up and down with the top of the tower, making the system compact. First of all, the required area is greatly reduced, the installation cost is reduced, and the power consumption required to drive the system can be remarkably reduced by receiving less resistance when the odor gas is moved. This is excellent, and in processing In addition to being able to recycle the used medicament, the odor can be reacted in sufficient contact with the treatment drug, so the odor removal efficiency is excellent, and the actual odor removal can be economically and efficiently performed.

Description

System for purifying composite smell}

The present invention relates to a complex odor treatment system, and more particularly, to a complex odor treatment system for purifying and removing various kinds of odor generated in various places such as various manufacturing plants, sewage treatment plants or manure treatment plants.

All manufacturing and livestock industries emit various odors, and some of the odors are directly harmful to the human body, such as hurting people and causing nausea and headaches. These odors must be effectively purged and removed because it causes serious problems that threaten the ecosystem by polluting the environment around us and causing serious harm to living things such as people and animals and plants.

Therefore, as a means of controlling these harmful odors, that is, odors, methods and apparatuses for removing odors by absorption, adsorption, oxidation, or the like and changing them to harmless levels have been proposed and used.

At present, the method mainly used in the industry is a multi-stage separation treatment for physical treatment and chemical treatment as shown in FIG. That is, in the system shown in FIG. 3, the adsorption tower made of activated carbon as the physical adsorption treatment unit 120 and two or three chemical wet cleaning units 130 called wet-scrubbers in which a treatment layer is generally stacked about two stages are arranged side by side. It is installed and each stage is composed of the filling layer 150 and the sprayer 140 repeatedly. Thus, the odor introduced into the suction port 110 is a part of the odor is physically adsorbed by the action of activated carbon as a porous adsorbent in the adsorption treatment unit 120 is introduced into the wet cleaning treatment unit 130 through the connecting passage to the appearance of odor According to the chemical treatment several times to remove the odor.

However, in this system, the liquid discharged from the sprayer 140 of the wet cleaning processing unit 130 passes through the packed bed 150 and then flows down to contact the odor to remove the odor and then discharge. It is configured to be. So, the adsorption treatment unit 120 for the physical treatment, as well as the wet cleaning treatment unit 130 by the chemicals should be installed independently of each other. Therefore, in such a conventional malodor treatment system, a large amount of required area is required, and the time that the treatment agent and the malodor are encountered is extremely short, and the use of the used medicine is impossible. Therefore, the site size for the odor treatment facility, its installation and maintenance was expensive and the odor treatment was not efficient.

In view of this point, the present inventors have intensively researched and completed the present invention to provide a treatment device having a small size, low installation cost and excellent purification ability by compactly configuring the odor treatment system.

In the present invention, halogen compounds such as phosphorus compounds, carbon dichloride, chloroform, ioform, and the like emitted from various sources, alcohols, aldehydes, phenols, aniline, pyridine Complex base odors such as organic bases such as pyridine, nitro compounds such as nitrobenzene, and toxic substances such as benzene and styrene, such as volatile organic compounds, can be economically and effectively treated and removed. Based on the long experience in this field to provide a system that has been experimented and researched for many years, unlike the conventional system described above, it is possible to purify the odor of the complex organic material in one place at a time to clean up the odor Reduce the installation cost of the removal system and reduce the odor gas flow resistance, thus reducing It is possible to reduce the cost and to maintain the product easily, and to have sufficient contact with adsorbents and various treatment agents, so that the odor treatment efficiency is excellent, and the medicine used in the treatment can be recycled and reused to provide an economical complex odor treatment system. .

That is, according to the present invention, the odor gas is supplied to the packed bed stacked thereon and the gas distributor configured to collect and reuse the liquid medicine injected from the upper sprayer to the packed bed is treated with the physical adsorption treatment unit and the chemical. Provides a complex odor treatment system configured to be installed in multiple stages in the tower all in one wet cleaning process.

1 is a top shaving illustrating one embodiment of the complex malodorous treatment system according to the present invention,

2 is an enlarged cross-sectional view of a gas distributor installed in the complex odor treatment system of FIG. 1;

Figure 3 is a partially cut away schematic diagram showing a conventional malodor treatment system.

※ Explanation of code for main part of drawing

1, 110: suction port 2, 120: adsorption treatment unit

3, 130: wet cleaning process 4, 4 ',: gas distributor

5,5 ', 150: packed bed 6,6', 140: sprayer

7, 7 ': Circulation tank 8, 8': Connector

9: inlet port 10: discharge port

11 support 12 roof

13: drain tube 14: exhaust port

The complex odor treatment system according to the present invention is composed of a plurality of stages each composed of an adsorption treatment unit mainly using active carbon, a packed bed, and a sprayer installed thereon for spraying liquid acid and alkaline chemicals to the bottom packed bed. It consists of a wet cleaning processing unit, in particular, the adsorption treatment unit and the wet cleaning treatment unit is located in the top and bottom in a row stacked on top, the odor gas to the upper layer under each of the packed layers of each stage of the wet cleaning treatment. In addition, there is a gas distributor that can be sent to the circulation tank for collecting and recycling the liquid treatment agent falling from the upper portion is characterized in that it is configured to ensure the separation treatment for each stage.

In addition, the gas distributor is the odor gas inlet at the bottom, the outlet opening on both sides in the upper, the roof of the inclined to the opposite sides, the circulation tank respectively connected to the atomizer through a connecting pipe, collecting the liquid dropped to the bottom It is characterized by being composed of a drainage pipe that is sent to the circulation tank.

In the complex odor treatment system according to the present invention, the wet cleaning treatment unit may be installed in a tower form by stacking two, three, or more necessary numbers according to the characteristics of the odor to be treated, and the adsorption treatment unit installed at the bottom is mainly activated carbon. Alcohol, benzene, fatty acids, mercaptan, etc., which are produced in paint factory, printing factory, plastic manufacturing / processing factory, plating factory, rubber manufacturing factory, etc., by being composed of other silica gel and zeolite. Of odorous substances are removed by adsorptive separation between molecules.

In addition, in the wet cleaning processing unit which is stacked in order to be suitable for the treatment of two or more types of malodors, molecules of each malodorous component are neutralized by spraying alkaline chemicals such as sulfuric acid, hydrochloric acid, acid, or sodium hydroxide in a proper order in each stage. It is treated by decomposing to remove. The pickling process handles odors of ammonia and amines emitted from livestock farms, complex fertilizer plants, crematoriums, waste disposal plants, fish storage plants, and sewage treatment plants. Neutralizes and offsets odors of sulfuric acid, lower fatty acids and aldehydes emitted from food processing plants.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

Referring to Figure 1 one embodiment of a complex odor system according to the present invention is illustrated schematically and simply.

The odor introduced from each factory first undergoes a conventional pretreatment process to remove harmful substances from the impurities contained therein, and then, as shown in FIG. After passing through the adsorption treatment unit 2 in which the adsorption material having excellent adsorption performance is inherent, the alcohol, acetone, benzene, toluene and mercaptans are adsorbed and removed.

The odor from which the above components are adsorbed and separated by activated carbon is introduced into the wet cleaning processing unit 3 through the inlet port 9 of the gas distributor 4 and subjected to chemical treatment. That is, the odor introduced through the inlet (9) is diffused in both directions through the discharge port (10) to enter the filling layer (5) of the upper. Here it is oxidized or reduced in chemical contact with the acid or alkaline chemicals emitted from the upper atomizer 6 to change to a completely different components or odor components are reduced to remove the harmful and unpleasant odor.

The filling layer 5 may penetrate the liquid material well and may be used a material that is harmless or resistant to chemicals, of which polypropylene is most used.

The liquid chemical sprayed from the atomizer 6 and passed through the packed bed 5 and reacts with the odor to remove the odor falls from the packed bed 5 onto the roof 12 of the gas atomizer 4. Next, it is collected into the drainage pipe 13 installed on one side through the lower passage (not shown) of the partitioned stage and enters the circulation tank 7, where it is introduced into the sprayer 6 through the connecting pipe 8 again. Not only does it fall to the bottom of the housing, it is also useful for reuse.

The gas distributors 4 are firmly fixed on the main body of the wet cleaning unit by the respective support units 11, and the roof 12 is preferably inclined at two sides and forms an angle of about 120 °.

The upper stage consisting of the gas distributor 4 ', the packed bed 5', and the nebulizer 6 'of the same structure as mentioned above by the appropriate chemical | medical agent according to the residual component is carried out as mentioned above. Further processing while passing in the same manner, discharges the purified gas from which impurities are completely removed to the atmosphere through the exhaust port 14.

Usually, almost all of the odor emitted from each plant by the two-stage wet cleaning process can be removed, but may be repeatedly processed several times, depending on the type of chemical agent.

In order to test the performance of the complex odor treatment system of the present invention was carried out as follows, but the present invention is not limited to this embodiment, and the modification or within the scope of the present invention as described in the accompanying utility model registration claims Of course, modification is possible.

(Example)

In order to purify and remove the odor gas generated from Yuhan Chemical Co., Ltd. and Hyosung Anyang Plant of Sihwa Industrial Complex, Ansan, the complex odor treatment system according to the present invention, in which the wet cleaning treatment unit is stacked in three stages, is installed in each factory. It was.

First, after exhausting the exhausted malodorous gas, the adsorption treatment unit located at the bottom of the complex malodorous treatment system of the present invention was passed.

Thereafter, the odor introduced into the first stage was oxidized with hydrogen peroxide (H ₂ O ₂ ), and then further treated with sodium hydroxide (NaOH) in the second stage to remove sulfur compounds and aldehydes.

The third step was further treated with sulfuric acid to remove residual impurities such as ammonia and amines in the treated malodorous gas.

In this way, the purified gas was discharged through the exhaust port, and some people who collected some gas and did not live in the factory were directly sensory measured by five people with normal sense of smell. It was very satisfactory for 1 degree of bad smell judgment table.

In addition, a gas analyzer was used as a measuring device to further determine whether impurities were contained. Thus, odor treatment efficiency of more than 96% was obtained.

Bad smell bad smell

0 degrees odorless

1-degree odor threshold

2 degrees moderate odor

3 degree strong odor

4 degrees very strong

5 degrees over strong

According to the complex odor removal system according to the present invention as described above, it is possible to separate the odor characteristics by separating each stage by using a unique gas distributor, so that each of the wet cleaning processing unit separately for each odor phase in the structure of the conventional wet cleaning treatment unit separately. It is possible to completely eliminate the problem of having to install the adsorption treatment unit separately from the wet cleaning treatment unit, and to install the adsorption treatment unit under the wet treatment unit. In addition, the wet cleaning treatment unit may be separated into a predetermined stage and stacked up and down in one tower. Since it can be installed, above all, the odor elimination system is compact and its size is so small that the required area is greatly reduced, the installation cost is reduced, and the resistance of odor gas is reduced, so the power consumption required for driving the system is also significantly reduced. And pharmaceuticals used for treatment Can be utilized as well, so bad smell is able to react sufficiently in contact with the treatment agent is odor removal efficiency extraordinary that it is possible to execute the actual odor very economically.

Claims (3)

Adsorption treatment unit (2), packed bed (5) (5 ') and installed thereon which use activated carbon mainly to remove organic and inorganic complex odors emitted from various manufacturing plants, processing plants, animal husbandry, sewage treatment plant, etc. Complex odor removal system consisting of a wet cleaning treatment unit (3), each of which is composed of a plurality of stages composed of atomizers (6) and (6 ') for spraying liquid acid or alkaline chemicals into the lower packed layer (5) (5'). To The adsorption treatment unit (2) and the wet cleaning treatment unit (3) are installed in such a manner that each stage is separated and stacked in a column top and bottom; Under each of the packed layers 5 and 5 'of the stacked stages of the wet cleaning unit 3, the odor gas is transferred to the upper layer and the liquid treatment agent falling from the upper side is circulated for recycling. A complex odor treatment system, characterized in that a gas distributor (4) (4 ') capable of sending to tanks (7) (7') is provided. According to claim 1, wherein the gas distributors (4) (4 ') is the lower odor gas inlet (9), the upper opening on both sides of the discharge port 10, the roof 10 of the inclined to both sides, Circulation tanks 7 and 7 ', which are respectively connected to the atomizers 6 and 6' through connecting pipes 8 and 8 ', and collect the liquid dropped to the bottom of the circulation tanks 7 and 7'. Complex odor treatment system, characterized in that consisting of a drain pipe (13) sent to. The complex odor treatment system according to claim 1, wherein the wet cleaning processing unit (3) can be installed in a tower by stacking two, three or more necessary numbers according to the properties of the odor to be treated.