KR101723863B1 - High Efficiency Deodorizing Apparatus - Google Patents

Abstract

The present invention relates to a high efficiency deodorizing apparatus including: a collecting fan (100) for collecting malodorous gas to transfer the gas to a pretreatment tower (200); a pre-treatment tower (200) for mixing the malodorous gas delivered from the collecting fan (100) with a solvent supplied from a pump (400) to remove a part of the malodorous or harmful components from the malodorous gas; and a post-treatment tower (300) for receiving the odorous gas processed in the pre-treatment tower (200) and mixing the odorous gas with a solvent supplied from the pump (500) to remove odorous or harmful components of the odorous gas, wherein the odorous gas supplied from the collecting fan (100) and the solvent supplied from the pump (400) flow together from the upper part to the lower part in the pre-treatment tower (200) and pass through a baffle having a shape where the area of a passing region is gradually narrowed, and at least two baffles are provided.

Description

{High Efficiency Deodorizing Apparatus}

TECHNICAL FIELD The present invention relates to a high performance deodorization apparatus, and more particularly, to a deodorization apparatus that removes odors by causing contact between odor gas and solvent by turbulence.

The deodorization facilities currently in use are facilities for treating complex odor gases generated in municipal waste treatment facilities and municipal waste recycling facilities.

As a result of the development and enhancement of the municipal solid waste disposal facility, the complex odor gas generated is a high concentration including organic wet steam, and it is a malignant complex gas including high temperature and dust. Therefore, Maintenance is difficult.

Currently, deodorization facilities generally used include filling tower system, biofilter system, and activated carbon adsorption system.

As shown in FIG. 1, in the filling tower method, a solution in which an explosive drug is dissolved is sprayed downward by an upper spray, and odorous gas is allowed to pass through saddling or poling, The contact is made so that the chemical reaction takes place and the odor gas is removed.

However, the filling tower erosion method has a low deodorization efficiency due to low efficiency of contact between the odor gas and the solution, and the deodorization efficiency is lowered due to clogging of dust or organic matter of the organic gas deposited in the saddling or polling, There is a problem in that a glass management cost is increased when replacing the glass.

As shown in FIG. 2, the bio filter deodorization system is a method of biologically decomposing odor gas by a microorganism having a malodor component as a nourishing component. The odor inhaled into the deodorizer of the tank structure is converted into an odorless gas while passing through a specially cultured microorganism carrier .

However, although the influx of the malodorous substance, which is the food of the microorganisms, must be kept constant, the concentration and the flow rate of the odorous substances in the source occur constantly in each hour and season, causing unstable treatment efficiency.

In addition, since the contact area is low and the mass transfer efficiency is poor and the filtering method of passing through the microbial carrier, clogging (occlusion) frequently occurs between the carriers, and maintenance is difficult.

As shown in Fig. 3, the adsorption method using activated carbon is a method of adsorbing malodorous substances in the fine pores of the activated carbon by using a physical chemical action to remove the odorous substances. In the tank group selected for the malodor discharge amount, , And silica gel is filled to adsorb the odor.

However, as a dry deodorization facility, it is not suitable for the high concentration deodorization facility required at present because it is for a low concentration.

In addition, if the odor gas component contains a large amount of water, the surface of the activated carbon is condensed to lower the deodorization efficiency, and the dust and the organic gas have a problem of closing the surface of the activated carbon.

This filtering method is difficult to increase the mass transfer efficiency because it has a limit to widen the contact area between the malodorous gas and the solvent, and it treats the malignant mixed gas including the organic wet steam and the high temperature high concentration dust. And it is difficult to adapt to the environment in which the odorous substances are generated in the odor source.

In this regard, there is a deodorizing device which is not a filtering method but has a limitation in efficiency and cost because it removes odor gas from one tower, as disclosed in Patent Document 2003-01991 (Jan. 10, 2003).

Also, there is a problem in that the efficiency of the system is low because there is one odor control tower and the gas injector of the malodor control tower is unnecessarily composed of a plurality of layers.

The present invention does not adopt a filtering method to solve the problems of the prior art, namely, (1) a problem of mass transfer efficiency, (2) a problem of clogging of a filtering layer, and (3) In order to increase the concentration, a pretreatment tower using a plurality of venturi mass transfer methods was installed as described below, and odorous gas and solvent (water) were contacted by turbulent flow to remove odor.

In addition, unnecessary portions are removed from the conventional post-treatment tower, and the height of the solvent to which the odor gas is injected can be adjusted to increase the efficiency.

The present invention includes a collecting fan (100) for collecting odor gas and sending it to a pretreatment tower (200); A pretreatment tower (200) for mixing odor gas sent from the collecting fan (100) and a solvent supplied from the pump (400) to remove odorous components or a part of harmful components from the odorous gas; And a post-treatment tower (300) for receiving odor gas treated in the pretreatment tower (200) and mixing the mixed gas with a solvent supplied from a pump (500) to remove odorous or harmful components of the odorous gas, The odor gas supplied from the collecting fan 100 and the solvent supplied from the pump 400 in the tower 200 pass through a baffle having a shape in which an area of a region through which the solvent flows from the upper portion to the lower portion is narrowed, And more particularly, to a high-efficiency deodorizing apparatus characterized by at least two or more.

In the present invention, the baffle has a plurality of inverted triangular shapes formed with a middle passage 212a as viewed from the front and has a rectangular shape on both sides of the middle passage 212a. The ventilation effect is generated in the passage 212a passing through the baffle and the width is narrowed. The baffle passages 212a, 213a, and 214a are installed so that at least two baffles pass upward and downward.

In the present invention, the post-treatment tower 300 is provided with a plurality of gas injectors 350 installed in the radial direction, a plurality of solvent injectors 310 installed vertically between the gas injectors, The solvent supplied from the solvent injector 310 is stored at a predetermined height around the solvent discharge port 360 and the odor gas discharged from the pretreatment tower 200 Is discharged from the gas injector 350 toward the neighboring gas injector 350 in the solvent of the predetermined height so that the malodorous or harmful components of the malodorous gas are dissolved in the solvent.

In addition, in the present invention, the plurality of gas injectors 350 all form one layer of the same height,

A level guide 365 is provided on the solvent outlet 360 so that the height of the solvent can be adjusted.

In the present invention, a pretreatment tower having a simpler structure is installed separately from the harmful and odorous components of the malodorous gas only in the post-treatment tower, so that harmful and odorous components of the malodorous gas can be removed before the post-treatment tower, So that the device can be installed flexibly.

In addition, the conventional malodor gas has been raised from the lower part to the upper part and the solvent has been lowered from the upper part to the lower part, so that the malodorous gas passes through the solvent, but the malodorous gas flows only into the area where the malodorous gas easily passes through the solvent.

Thus, the pretreatment tower of the present invention is capable of mixing the odorous gas and the solvent by the venturi effect in the direction from the upper part to the lower part, so that the odorous gas does not flow only in a specific direction of the solvent.

In addition, it is not a filtering method in which odorous gas passes through a medium, but a venturi effect and turbulence are generated in a place where a malodorous gas and a solvent flow together and a width is narrowed, thereby increasing the area in which odorous gas can come into contact with a solvent, And the maintenance cost is minimized by eliminating clogging due to the filtering method.

In addition, the height of the solvent stored in the post-treatment tower can be adjusted so that the liquid pressure (underwater pressure) of the gas discharged from the gas injector can be adjusted.

In addition, it has become possible to increase the operating efficiency by forming a single layer by removing the gas injector layer, which was conventionally unnecessarily large.

1 is a schematic view of a conventional deodorizing system for a filling tower.
2 is a schematic view of a conventional biofilter type deodorization facility.
3 is a schematic view of a conventional deodorization system using an adsorption tower (activated carbon).
4 is a schematic perspective view of the deodorizing apparatus of the present invention.
5 is a front view of the entire deodorizing apparatus of the present invention.
6 is a plan view of the entire deodorizing apparatus of the present invention.
7A is a partial cross-sectional front view of the pretreatment tower of the deodorizing apparatus of the present invention.
7B is a front cross-sectional view of the baffle installed in the pretreatment tower of the deodorizing apparatus of the present invention.
7C is a cross-sectional plan view of the baffle installed in the pretreatment tower of the deodorizing apparatus of the present invention.
7D is a schematic explanatory view of the malodor removing function in the pretreatment tower of the deodorizing apparatus of the present invention.
8A is a partial sectional front view of a post-treatment tower of the deodorizing apparatus of the present invention.
FIG. 8B is a cross-sectional view taken along line AA in FIG. 8A.
8C is a gas injector detail view of the post-treatment tower of the deodorizing apparatus of the present invention.
8D is a cross-sectional view of the gas injector portion of the post-treatment tower of the deodorizing device of the present invention.

4 is a schematic perspective view of the deodorizing apparatus of the present invention. The odor gas collected by the collecting fan 100 is sent to the upper part of the pretreatment tower 200 by an air blower and supplied to the pretreatment tower by the pump 400 The solvent (water) and the malodorous gas are mixed by the turbulence or venturi effect generated in the pretreatment tower, so that some harmful components and malodorous components of the malodorous gas are dissolved and removed in the solvent, Is supplied to the post-treatment tower 300 to remove harmful components and odor components, and then is discharged to the outside through the upper part of the post-treatment tower 300 as a clean gas.

5 is a front view of a deodorizing apparatus according to the present invention in which odor gas is collected through the inlet 110 of the collecting fan 100 and the odor gas is moved along the pipe 120 and flows into the upper inlet of the pre- 230 into the pre-treatment tower and move downward.

5, two venturi mass transferring parts of the upper venturi mass transferring part 210 and the lower venturi mass transferring part 220 are shown. However, depending on the volume of the malodorous gas to be treated, the venturi mass transferring part may have one or more than three As shown in FIG.

Referring to FIG. 5, it can be seen that the solvent is supplied from the pump 400 to the upper and lower venturi mass transfer parts 210 and 220 via the two pump outlets 410 and 420.

The malodor gas introduced through the upper inlet 230 is mixed with the solvent supplied by the pump 400 in the venturi mass transfer units 210 and 220 and then discharged through the discharge port 240. After the pipeline 250 To the odor gas inlet 330 of the post-treatment tower 300.

The solvent of the pretreatment tower is supplied from the outside through the supply pipe 440, and the solvent in which some malodorous components and harmful components are dissolved from the malodorous gas is discharged to the outside through the discharge pipe 450.

The solvent supplied through the supply pipe 440 is supplied to the venturi mass transfer parts 210 and 220 by the pump outlets 410 and 420 through the pump inlet 430.

The malodor gas sent to the post-treatment tower 300 through the gas inlet 330 is mixed with the solvent (or water) supplied by the pump 500 and processed and discharged to the outside as a clean gas through the gas outlet 370 .

The solvent supplied to the post-treatment tower 300 is supplied to the pump 500 through the supply pipe 540 and the solvent in which the odor component is dissolved is discharged through the discharge pipe 550.

6 is a plan view of the entire deodorizing apparatus of the present invention. The gas input by the gas inlet 110 of the collecting fan 100 is sent to the upper inlet 230 of the pretreatment tower 200 along the pipe 120, And then sent to the odor gas inlet 330 of the post-treatment tower 300 along the pipe 250 after being discharged through the outlet 240.

The malodor gas sent to the post-treatment tower 300 through the odor gas inlet 330 is treated by the solvent supplied through the outlet 510 of the pump 500 and then discharged to the outside as a clean gas through the gas outlet 370 It can be seen that it is discharged.

FIG. 7A is a view of a pretreatment tower of the deodorizing apparatus according to the present invention, wherein the left side of the center line CL is the inner cross-sectional view and the right side is the case.

The pretreatment tower 200 includes an upper venturi mass transferring part 210 and a lower venturi mass transferring part 220. Venturi mass transferring parts 210 and 220 are connected to the upper inlet 230, And the solvent supplied to the solvent supply pipes 211 and 221 are mixed.

In order to maximize the mixing of the mixing action, a baffle (partition 212, 213, 214; 222, 223, 224) is installed in each of the venturi mass transfer parts 210,

A front view of the baffle 212 can be seen in FIGS. 7A and 7B, and a top view can be seen in FIG. 7C.

Referring to FIG. 7B, the baffle 212 is supported on the case by the baffle support 215.

The odor removal method in the pretreatment tower 220 is shown in Fig. 7D. As shown in FIG. 7D, the odor gas supplied from the upper inlet 230 and the solvent supplied by the spray nozzle 211a of the solvent passage pipe 211 flow down from the upper part to the lower part together.

The odor gas and the solvent flowing down together pass through the baffle where the passage narrows. In this way, the velocity of the malodorous gas and the solvent increases at the narrowing of the passage, the venturi effect in which the pressure is decreased, the injection effect is performed, and the gas and liquid are mixed.

 A plurality of baffles 212, 213, and 214 are vertically installed, and passages 212a, 213a, and 214a of the baffle are disposed to be shifted from each other, thereby achieving spraying and turbulence by a venturi effect, .

That is, the baffle has a plurality of inverted triangular shapes formed with a middle passage 212a as viewed from the front, and has a rectangular shape on both sides with the middle passage 212a in the top view. The odor gas and the solvent together form a baffle And a venturi effect is generated in the passage 212a.

Even if the liquid and the gas are present at the same time, they do not easily mix with each other even if they do not penetrate each other. Therefore, the turbulence is increased or the liquid is sprayed so that it can be mixed with the gas, .

The odor gas that has passed through the baffle with the solvent passes through the discharge port 240 and then is sent to the inlet 330 of the post-treatment tower 300 along the pipe 250 and the solvent is discharged to the outside through the discharge pipe 450 .

As shown in FIGS. 8A and 8B, the malodor gas supplied to the post-treatment tower through the inlet 330 is supplied to the plurality of gas injectors 350 installed in the radial direction through the odor gas passage 340 (In a direction perpendicular to the radial direction) from the injector 350 after the exhaust gas is exhausted.

The solvent supplied through the outlet 510 of the pump 500 passes through the solvent injector 310 through the solvent chamber 305 and is discharged in the horizontal direction L from the solvent injector 310, And is stored around the outlet 360.

8c and 8d, a plurality of gas injectors 350 are arranged in the radial direction and a solvent injector 310 installed in a plurality of vertical directions (V).

As shown in FIG. 8D, the solvent supplied from the solvent injector 310 is filled in the post-processor, and the height of the solvent is higher than the level guide 365 through the cylindrical solvent outlet 360 installed at the center.

The level guide 365 is installed above the water outlet 360 and is vertically movable so that the height of the solvent in the post-treatment tower can be adjusted.

The gas discharged from each gas injector 350 is discharged from the liquid solvent and is hit by a neighboring gas injector to generate turbulence, thereby dissolving harmful and odorous components in the liquid solvent.

The gas injector 350 may include a plurality of gas injectors 350. However, the gas injector 350 may include one layer having the same height, and may be adjusted so that the underwater pressure of the gas injector 350 may be optimized by the upward and downward movement of the level guide 365 I can do it.

This is because, when the gas injector 350 has a plurality of layers as in the case of the disclosure of JP-A-1990-0007467 (1990.06.01), the liquid pressure at the bottom layer is too high, In the case of the uppermost layer, since the liquid pressure is too small, the mixing effect of the gas by the liquid is reduced. Therefore, in the present invention, one layer is formed and the height of the solvent stored by the level guide 365 is adjusted, So that it is possible to produce an appropriate odor gas movement and to mix the malodorous gas with the solvent to increase the efficiency of the apparatus.

The malodor gas discharged from the gas injector 350 passes through the liquid supplied by the solvent injector 310, passes through the water separator 375, and is separated from the liquid. Only the gas is discharged through the discharge port 370 .

As described above, in the present invention, a plurality of baffles are installed in the pretreatment tower 200 to mix the malodorous gas and the solvent by the occurrence of venturi phenomenon and turbulence, and the malodorous gas is mixed with harmful and odorous components So that some parts can be removed.

Further, odor gas from which some odor components have been removed from the pretreatment tower is supplied to the post-treatment tower, and is discharged into the solvent from the plurality of radially installed one-layer conical gas injectors 350 of the post- A plurality of eddy cells are generated due to the turbulence generated by colliding with the injector 350, thereby removing all harmful components and odorous components.

This is because, when the post-processing tower 300 is a complicated structure, it takes a high cost to install, operate and maintain only one post-processing tower 300, so that the pre- And to increase the efficiency of the entire deodorizing equipment by installing it at a low cost.

That is, when the concentration of the malodorous gas is large and the amount of the gas to be treated is large, the pre-treatment tower 300 having a simple structure is installed according to circumstances, (300) can be appropriately adjusted in consideration of installation, operation, and maintenance costs.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims. will be.

100: Collecting fan 200: Pretreatment tower
300: post-treatment tower 400, 500: pump
210, 220: Venturi mass transfer unit 211, 221: Solvent passage tube

Claims (3)

A collecting fan (100) for collecting odor gas and sending it to the pretreatment tower (200);
A pretreatment tower (200) for mixing odor gas sent from the collecting fan (100) and a solvent supplied from the pump (400) to remove odorous components or a part of harmful components from the odorous gas; And
And a post-treatment tower (300) for receiving the odor gas processed in the pretreatment tower (200) and mixing with the solvent supplied from the pump (500) to remove odorous or harmful components of the odorous gas,
The odor gas supplied from the collecting fan 100 and the solvent supplied from the pump 400 in the pretreatment tower 200 pass through the baffle having a shape in which the area of the region through which the solvent flows from the upper portion to the lower portion is narrowed,
The baffles (212, 213, 214) are at least two in the vertical direction,
Wherein the malodor gas and the solvent together cause the venturi effect to pass through the baffle having a shape that the area is narrowed. The method according to claim 1,
The post-treatment tower 300 is provided with a plurality of gas injectors 350 installed in the radial direction, a plurality of solvent injectors 310 installed vertically between the gas injectors, And an outlet 360,
The solvent supplied by the solvent injector 310 is stored at a constant height around the solvent outlet 360,
The malodorous gas processed in the pretreatment tower 200 is discharged from the gas injector 350 toward the neighboring gas injector 350 in the solvent of the predetermined height,
Wherein the malodor component and the harmful component of the malodor gas are dissolved in the solvent. 3. The method of claim 2,
The plurality of gas injectors 350 all form one layer of the same height,
And a level guide (365) is provided on the solvent discharge port (360) to adjust the height of the solvent to be stored.

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