KR200318879Y1 - Activated carbon reproduction system for volatility organic compound exclusion - Google Patents

Abstract

According to the present invention, a hopper-shaped activated carbon receiving space 12 is formed between a pair of reticular covers 11 and a horizontal moving passage 14 is formed at the lower portion of the activated carbon receiving space 12 so as to communicate with each other. The movement passage 14 is in communication with the vertical movement passage 15 and the vertical movement passage 15 is in communication with the horizontal movement passage 16 formed at the upper portion of the activated carbon receiving space 12, and the housing ( Activated carbon 2 accommodated in the activated carbon receiving space 12 of 1), and activated carbon raising means 3 provided in the horizontal moving passage 14 and the vertical moving passage 15 below the activated carbon receiving space 12. And activated carbon drying means (4) provided in the horizontal moving passage (16) formed above the activated carbon receiving space (12), and the activated carbon contained in the activated carbon containing space absorbs VOC and moisture in the exhaust gas. The activated carbon contained in the space is horizontally above the activated carbon storage space by the activated carbon raising means. After moving to a pain is dried by the activated carbon drying means characterized in that the activated carbon receiving space to move in.

Description

Activated carbon reproduction system for volatility organic compound exclusion

The present invention relates to an activated carbon regeneration device for removing volatile organic compounds (VOC) for regenerating and using activated carbon used to absorb and remove volatile organic compounds.

Volatile organic compounds (hereinafter referred to as "VOC") are carbon compounds, excluding carbon monoxide, carbon dioxide, carbonic acid, metallic carbonates and ammonium, which cause photochemical oxidation reactions with nitrogen oxides (NOX) in the atmosphere by sunlight. It is an organic compound that causes smog by increasing ozone concentration. Representative materials include 318 kinds of photochemical reactions such as benzene, toluene, propane, butane, nucleic acid and ethane, petroleum refining products and organic solvents with True Vapor Pressure (TVP) of 1.5 psia or more. (However, compounds with low photochemical reactivity such as methane, ethane, methyl chloride, methyl chloroform, chlorofluorocarbons and perfluorocarbons are excluded.)

VOC is not only widely used as a solvent in industry, but also contained in organic gas emitted from chemical and pharmaceutical factories, automobile coating booths and plastic drying processes, and it is surrounded by low-boiling liquid fuels, paraffin, olefins and aromatic compounds. Almost all hydrocarbons that are used in this are the case.

However, these VOCs are not only toxic chemicals (especially aromatic chemicals and halogenated hydrocarbons), but also the entire structure of photochemical oxides, the stratospheric ozone depleting substances, and substances that affect global warming. Filtration of VOCs in organic gas is an important point in preventing environmental pollution.

FIG. 6 shows that the VOC filtration device 100 is installed in the exhaust passage in the air blower AB 'in the automobile coating booth AB in one embodiment, and FIG. 7 is a conventional VOC filtration device. A perspective view of 100 is shown.

The conventionally provided VOC filtering device 100 has a structure in which the activated carbon 130 is filled in the housing 110 in which the inlet side and the outlet side are covered with the reticular member 120 in most cases, and the VOC filtering apparatus 100 is It is installed in the exhaust pipe 140 of various industrial equipment for discharging the VOC.

Activated carbon is prepared by treating wood, lignite, peat, etc. with chemicals such as zinc chloride or phosphoric acid as an activator, and drying or activating charcoal with water vapor to produce powder or granules. It is known to absorb gas and moisture, or to perform a function of recovery of solvent, purification of gas, or decolorization.

In the process of filtering the VOC in the exhaust gas by the conventional VOC filtration device 100, when the exhaust gas is discharged through the exhaust pipe 140 and passes through the activated carbon 130 of the VOC filtration device 100, VOC and moisture in the exhaust gas Is absorbed by the activated carbon 130 and filtered.

However, since the conventional VOC filtration device 100 cannot remove VOC or moisture absorbed by the activated carbon 130, the filtration function of the activated carbon 130 is lost after a predetermined filtration time. Therefore, in order to continue to exhibit a filtration function is to be replaced with a new activated carbon 130 is a cumbersome replacement work. Moreover, the conventional VOC filtration device 100 filters VOC and moisture, but cannot fundamentally remove the VOC, thereby limiting environmental pollution.

The present invention has been devised in consideration of the above-mentioned various problems, and its object is to evaporate VOC and moisture adsorbed on activated carbon by continuously circulating activated carbon, and further evaporate VOC and moisture to heating means. The present invention aims to provide a VOC removal activated carbon regeneration apparatus that can completely remove VOCs by heating and remove them, and in particular, can continuously regenerate and use them without exchanging activated carbons.

1 is a cross-sectional view of the activated carbon recycling apparatus according to the present invention

2 is a cross-sectional view taken along the line A-A of FIG.

3 is an enlarged view of a portion “B” of FIG. 1;

4 is an enlarged view of a portion “C” of FIG. 2;

5 is an enlarged view of the D-D line of FIG.

Fig. 6 is a state diagram in which the VOC filtration device is installed in the exhaust passage of the exhaust fan in an automobile paint booth.

7 is a perspective view of a conventional VOC filtration device;

<Description of Signs of Major Parts of Drawings>

1. Housing --- 11. Reticular cover, 12. Space for activated carbon, 13. Outlet

14, 16. horizontal passage, 15. vertical movement passage,

2. Activated Carbon

3. Activated carbon lift means --- 31, 33. Motor, 32. Feed Screw, 34. Burr Conveyor

4. Activated carbon drying means --- 41. Transfer screw, 42. Drying roller, 43. Heating bar

45. Oil

5. Driving means

The activated carbon regeneration device for VOC removal according to the present invention includes a hopper-shaped activated carbon receiving space formed between a pair of reticular covers and a horizontal moving passage formed at a lower portion of the activated carbon receiving space. The vertical movement passage is in communication with the vertical movement passage and the vertical movement passage communicates with the horizontal movement passage formed at the upper portion of the activated carbon receiving space, the activated carbon contained in the activated carbon receiving space of the housing, and the vertical movement passage and the vertical movement passage under the activated carbon receiving space Activated carbon rising means provided in the passage, and activated carbon drying means provided in the horizontal movement passage formed on the upper space for the activated carbon receiving space.

The present invention as described above, VOC and moisture in the exhaust gas is absorbed by the activated carbon contained in the activated carbon receiving space. The activated carbon contained in the activated carbon storage space is moved to the horizontal moving passage above the activated carbon storage space by the activated carbon raising means and then dried by the activated carbon drying means to move to the activated carbon storage space.

Therefore, the present invention continuously circulates the activated carbon while drying to evaporate the VOC and moisture adsorbed on the activated carbon, and remove the VOC completely by heating and removing the vaporized VOC and moisture by separate heating means. In particular, by continuously regenerating and using the activated carbon, the VOC is continuously removed efficiently.

Hereinafter, a specific embodiment of the present invention will be described in detail with reference to the drawings.

1 is a cross-sectional view of the activated carbon regeneration device according to the present invention, Figure 2 is a cross-sectional view taken along the line A-A of FIG.

The housing 1 is a rectangular box, and the reticular cover 11 is provided at each side of the inlet and discharge side of the discharge gas, and a hopper shaped space for active carbon between the reticular covers 11 ( 12) is formed.

A discharge hole 13 is formed in the lower portion of the activated carbon receiving space 12 along the longitudinal direction of the activated carbon receiving space 12, and a horizontal movement passage 14 is formed in the lower portion of the discharge hole 13.

The vertical movement passage 15 is formed in the vertical movement passage 15 by communicating one end portion in the longitudinal direction of the horizontal movement passage 14, and the vertical movement passage 15 is formed with the horizontal movement passage 16 formed on the upper portion of the activated carbon receiving space 12. In communication. In addition, a plurality of discharge holes 17 are formed in the upper portion of the horizontal moving passage 16.

The activated carbon receiving space 12 of the housing 1 is filled with activated carbon 2 for absorbing VOC and moisture in the exhaust gas.

In the horizontal movement passage 14 and the vertical movement passage 15 of the housing 1, activated carbon raising means 3 for raising the activated carbon 2 in the activated carbon receiving space 12 to the upper horizontal movement passage 16 is provided. It is provided.

Activated carbon lift means (3) is rotatably disposed along the horizontal movement passage 14 and rotatable across the vertical movement passage (15) and the transfer screw (32) installed to be driven by the motor (31). It is installed as a bucket conveyor (34) so as to be installed so that it can be driven by the motor (33).

The activated carbon raising means 3 as described above transfers the activated carbon 2 in the lower portion of the activated carbon receiving space 12 to the lower portion of the horizontal moving passage 14 by the transfer screw 32 to the burr conveyor 34. By the upward movement to move to the upper horizontal movement path (16).

The horizontal movement passage 16 is provided with activated carbon drying means 4 for drying the transported activated carbon 2 to evaporate VOC and moisture absorbed in the activated carbon 12.

Activated charcoal drying means 4 is a pair of the rotating screw disposed rotatably and parallel to the lower portion of the conveying screw 41 and the conveying screw 41 is disposed rotatably along the horizontal moving passage 16 as shown in Figs. Drying rollers 42 and a heating bar 43 provided in each drying roller 42. Here, the feed screw 41 and the drying roller 42 are both ends of the longitudinal direction rotatably installed in the housing 1 and the heating bar 43 provided in the drying roller 42 has both ends of the longitudinal direction. It is fixed to a support bra (44) fixed to the housing (1).

The heating oil 45 is housed in a sealed state between the drying roller 42 and the heating bar 43. The oil 45 is provided to heat the drying roller 42 uniformly and more effectively.

The activated carbon drying means 4 is driven by the drive means 5.

As shown in FIGS. 3 and 5, the driving means 5 includes a transfer screw gear 53 engaged with the drive gear 52 of the motor 51, a pair of dry roller gears 54 engaged with each other, An idle gear 55 meshed with the transfer screw gear 53 and the dry roller gear 54 is used. When the driving means 5 rotates the drive gear 52 by operating the motor 51, the transfer screw gear 53 coupled to the transfer screw 41 rotates, and a pair coupled to each drying roller 42. Of the dry roller gear 54 is formed so that its opposite surface rotates downward.

The activated carbon drying means 4 uniformly transfers the activated carbon 12 transferred to the horizontal moving passage 16 by the activated carbon raising means 3 between the pair of drying rollers 42 by the transfer screw 41. The activated carbon 2 to be conveyed together is heated and dried by the drying roller 42 while passing through a pair of rotating drying rollers 42 to fall into the activated carbon receiving space 12. Here, in the heating and drying process of the activated carbon 2, VOC and moisture absorbed by the activated carbon 2 are separated by evaporation, and the separated VOC and moisture are discharged through the discharge hole 17 and then heated by a separate high temperature heating means. Removed.

The present invention as described above is installed in the exhaust pipe (6) of the various industrial equipment for discharging the VOC as conventionally, the process of absorbing the VOC by the activated carbon (2) and regenerating the activated carbon (2) is as follows.

According to the present invention, when the exhaust gas passes through the activated carbon 2 accommodated in the activated carbon receiving space 12 through the exhaust pipe 6, VOC and moisture in the exhaust gas are absorbed by the activated carbon 2 in this process.

On the other hand, the activated carbon 2 accommodated in the activated carbon receiving space 12 is moved to the lower portion of the buffer conveyor 34 by the transfer screw 32, the upper portion of the activated carbon receiving space 12 by the buffer conveyor 34 Is transferred to the horizontal movement path (16).

The activated carbon 2 transferred to the horizontal moving passage 16 is evenly supplied between the pair of drying rollers 42 by the transfer screw 41, and then dried in the process of passing through the rotating drying rollers 42 for active carbon water. It is recovered to the space 12. In the drying process of the activated carbon 2, VOC and moisture absorbed in the activated carbon 2 are separated from the activated carbon 2 by evaporation from the activated carbon 2, and the separated VOC and water are discharged through the discharge hole 17. After being heated and removed by a separate high temperature heating means.

The present invention absorbs VOC and moisture in the exhaust gas by the activated carbon contained in the activated carbon storage space. The activated carbon contained in the activated carbon storage space is moved to the horizontal moving passage above the activated carbon storage space by the activated carbon raising means and then dried by the activated carbon drying means to move to the activated carbon storage space.

Therefore, the present invention continuously circulates the activated carbon while drying to evaporate the VOC and moisture adsorbed on the activated carbon, and remove the VOC completely by heating and removing the vaporized VOC and moisture by separate heating means. In particular, the present invention can be used by continuing to dry regeneration without replacing the activated carbon.

Claims (4)

A hopper shaped activated carbon accommodating space 12 is formed between the pair of reticular covers 11, and a horizontal moving passage 14 is formed in communication with the lower portion of the activated carbon accommodating space 12. ) Is in communication with the vertical movement passage 15 and the vertical movement passage 15 is in communication with the horizontal movement passage 16 formed on the activated carbon receiving space 12, the activated carbon of the housing (1) Activated carbon 2 accommodated in the receiving space 12, activated carbon raising means 3 provided in the horizontal moving passage 14 and the vertical moving passage 15 under the activated carbon receiving space 12, and the activated carbon receiving unit Activated carbon drying means (4) provided in the horizontal moving passage 16 formed in the upper space 12, the activated carbon contained in the activated carbon storage space is absorbed VOC and moisture in the exhaust gas and activated carbon contained in the activated carbon storage space Is a horizontal movement path above the activated carbon storage space by means of activated carbon ascending means. Activated carbon is dried by drying means to remove volatile organic compounds for the activated carbon and reproducing apparatus, characterized in that the activated carbon receiving space to move after donghan. The method of claim 1, wherein the activated carbon lifting means (3) is rotatably installed in the vertical movement passage (15) and the transfer screw (32) rotatably installed in the horizontal movement passage (14) below the activated carbon receiving space (12) Volatile conveyor (34), the activated carbon transported in the vertical movement path by the transfer screw is lifted by the buffer conveyor to remove the volatile organic compounds, characterized in that it is raised to the horizontal movement passage in the upper portion of the activated carbon receiving space Activated carbon regeneration device. The method of claim 1, wherein the activated carbon drying means (4) is rotatably installed in the transport screw 41 and the transport screw 41, which is rotatably installed in the horizontal movement passage (16) above the activated carbon receiving space (12) It consists of a pair of drying roller 42 and a heating bar 43 provided in the drying roller 42, the activated carbon conveyed by the conveying screw is heated and dried in the process of passing through the pair of drying rollers to the activated carbon receiving space Activated carbon regeneration device for removing volatile organic compounds, characterized in that the fall. 4. The activated carbon regeneration apparatus for removing volatile organic compounds according to claim 3, wherein the heating oil (45) is sealed between the drying roller (42) and the heating bar (43).