KR102598982B1 - A Rotating type vane filter for wet scrubber - Google Patents

Abstract

The present invention relates to a filter applied to a wet scrubber, and more specifically, to a filter that rotates without power about a central axis inside the case using the flow of incoming gas, etc., thereby increasing the efficiency of contact between the gas to be purified and the cleaning water. Sludge discharge efficiency by centrifugal force is increased through a filter module with multiple wings. In particular, instead of the existing mesh-shaped porous filter structure, the flat plate of the wings runs from the front to the back with respect to the central axis, creating a streamlined filter. A rotary driven vane for a wet scrubber that is formed to form a curved surface so that the incoming purified gas and cleaning water can flow out smoothly while in contact with the flat plate, which not only reduces the differential pressure but also facilitates sludge discharge and filter cleaning. It's about filters.

Description

A rotating type vane filter for wet scrubber}

The present invention relates to a filter applied to a wet scrubber, and more specifically, to a filter that rotates without power about a central axis inside the case using the flow of incoming gas, etc., thereby increasing the efficiency of contact between the gas to be purified and the cleaning water. Sludge discharge efficiency by centrifugal force is increased through a filter module with multiple wings. In particular, instead of the existing mesh-shaped porous filter structure, the flat plate of the wings runs from the front to the back with respect to the central axis, creating a streamlined filter. A rotary driven vane for a wet scrubber that is formed to form a curved surface so that the incoming purified gas and cleaning water can flow out smoothly while in contact with the flat plate, which not only reduces the differential pressure but also facilitates sludge discharge and filter cleaning. It's about filters.

In general, wet scrubbers are the most common atmospheric equipment that have been used for decades to purify gas. As the time and rate (opportunity) of gas and (washing water) droplets meet increases, the amount of substances in the gas absorbed or collided increases. As this increases the removal efficiency, the gas-liquid contact device uses objects with a large specific surface area in various ways. In addition, when removing a substance with high water solubility depending on the type of substance, adding a neutralizing agent to the washing water in advance can increase the removal efficiency and reduce the construction cost of the device.

At this time, in order to efficiently remove various odors and harmful compounds contained in the gas, it was necessary to secure sufficient contact time between the gas and liquid within the filter. To this end, a filter was formed by stacking a number of plate-shaped bodies as shown in the patent document below. It is universal.

<Patent Document> Registered Patent No. 10-1685874 (announced on December 13, 2016) “Porous filter and filter case for wet scrubber”

The prior art disclosed in the above <patent document> is also a shape in which a pair of plate-shaped bodies are assembled into a plurality of connected bodies to cross each other with ventilation holes of a certain shape, which induces a change in air flow and an increase in specific surface area, thereby causing physical adsorption and This is to ensure that chemical absorption occurs simultaneously.

However, in this existing filter structure in which mesh-shaped pieces are cross-laminated, the rate at which the differential pressure rises rapidly increases during actual operation due to blockage caused by sludge adhering and accumulating between the grids, making it necessary to clean the filter periodically. Cleaning cycles are shortened, resulting in a serious increase in operational risks and operating costs.

Additionally, the prior art disclosed in Registered Patent No. 10-1805708 (announced on January 10, 2018) “Non-powered wet air purifier” moistens the filter with water pumped into the outside air sucked by a (single) fan installed inside, thereby purifying the air. The principle of purification is limited to the application of portable small purifiers, and has nothing to do with the purposes of reducing differential pressure, easy sludge removal, contact between air and sprayed water, and easy cleaning. In addition, unlike existing registered patents, this patent applies to a large wet type with a large capacity fixed fan. It is subject to scrubbers. In addition, the prior art disclosed in Registered Patent No. 10-2184424 (announced on November 13, 2020) “Rotary Wet Filter Stage” rotates a grid-type filter installed inside and sprays water on it to remove ultra-fine suspended particles. By removing the , it is irrelevant to the purpose of reducing differential pressure because it still merely uses a grid type that accumulates sludge and increases differential pressure.

Accordingly, there is an increasing need for a new type of filter structure that can reduce operating and maintenance costs by solving problems of blockage caused by sludge or increased differential pressure while maintaining the same or improved filter function.

The present invention was devised to solve the above problems,

The purpose of the present invention is to provide a filter module with a plurality of wings that increases the efficiency of contact between the gas to be purified and washing water while rotating without power about the central axis using the inflow flow of gas flowing from the inside of the case. To provide a rotation-driven vane filter for a wet scrubber that increases sludge discharge efficiency by centrifugal force and reduces filter differential pressure through natural suction by rotating blades.

Another object of the present invention is that, rather than the existing mesh-shaped porous filter structure, the flat plate of the wing portion is formed to form a streamlined curved surface extending from the front to the back with respect to the central axis, so that the incoming purification target gas and washing water are formed on the plate. For a wet scrubber that allows for smooth outflow while in contact, and also minimizes the increase in differential pressure due to the plurality of wings by arranging the plurality of wings so that the plate area of one wing does not overlap that of the other adjacent wing when viewed from the front. A rotary driven vane filter is provided.

Another object of the present invention is to provide a rotary driven vane filter for a wet scrubber that maximizes removal efficiency by forming protrusions on both surfaces of a plurality of wings to increase surface area and strengthen turbulence formation.

Another object of the present invention is to provide an opening corresponding to the planar area formed by the plurality of wings when viewed from the front, on the front side of the case part in the direction in which the gas to be purified is introduced, and on the back side in the opposite direction, in the upper, lower, left, and right directions. On the side, a plurality of ventilation holes are formed so that sludge can be easily discharged through centrifugal force caused by the rotation of the plurality of wings, thereby facilitating sludge discharge and cleaning of the filter. A rotary driven vane for a wet scrubber It provides a filter.

Another object of the present invention is to effectively prevent sludge from entering by applying a double structure in which the first cover part surrounds the second cover part at the shaft coupling part where the central axis is coupled to the case part and differentiating each spaced apart part. The aim is to provide a rotary driven vane filter for a wet scrubber.

In order to achieve the above-described object, the present invention is implemented by an embodiment having the following configuration.

According to one embodiment of the present invention, a rotary driven vane filter for a wet scrubber according to the present invention includes a case portion accommodating a filter module therein; and a filter module accommodated inside the case unit to increase the efficiency of contact between the gas to be purified and the washing water, wherein the filter module rotates inside the case unit to increase the contact efficiency between the gas to be purified and the washing water and to increase the contact efficiency between the gas to be purified and the washing water by centrifugal force. It is characterized by reducing differential pressure while increasing sludge discharge efficiency.

According to another embodiment of the present invention, in the present invention, the filter module has a central axis that is rotated or fixed by being coupled to the shaft coupling part of the case portion, and is coupled to the central axis radially with respect to the central axis and rotates together. Alternatively, it may include a plurality of wings that rotate separately.

According to another embodiment of the present invention, in the present invention, the case portion has a front surface in the direction in which the gas to be purified flows in and a rear surface in the opposite direction, and a planar area formed by the plurality of wings when viewed from the front. It is characterized by comprising an opening corresponding to and a shielding portion that closes a portion other than the opening to block gas to be purified or cleaning water from flowing into the outside of the opening.

According to another embodiment of the present invention, in the present invention, the case part has a plurality of ventilation holes formed on the upper, lower, left, and right sides so that sludge can be easily discharged through centrifugal force caused by the rotation of the plurality of wings. It is characterized by

According to another embodiment of the present invention, in the present invention, the wing portion is formed so that the flat plate extends from the front to the back with respect to the central axis to form a streamlined curved surface, so that the incoming purification target gas and cleaning water contact the flat plate. It is possible to flow out smoothly, and the wing portion is arranged so that the plate area of one wing does not overlap with the plate area of another adjacent wing when viewed from the front, thereby minimizing the increase in differential pressure due to the plurality of wing portions.

According to another embodiment of the present invention, in the present invention, the wing portion has the same axis as the central axis and forms a structure in which the plurality of wing portions are coupled to a body casing surrounding the central axis, and the body casing The front is slanted so that the flow of incoming purified gas and washing water is smoothly directed toward the wings.

According to another embodiment of the present invention, in the present invention, the wing portion forms protrusions on both surfaces of the flat plate to increase the surface area and strengthen the formation of turbulence, thereby increasing the contact efficiency between the gas to be purified and the cleaning water. It is characterized by maximizing efficiency.

According to another embodiment of the present invention, in the present invention, the shaft coupling portion includes a first cover portion integrally fixed with the case portion, and a second cover portion integrally interlocked with the central axis, In a structure in which the second cover part surrounds the first cover part, the part where the second cover part is spaced apart from the case part and the part where the first cover part is spaced apart from the central axis are formed at different points, and the first cover part A separate covering is included at a joint portion between the second cover portion and the central axis surrounding the portion spaced apart from the central axis, so that sludge is applied to the portion spaced apart from the case portion of the second cover portion or the first cover. It is characterized by preventing (sludge) from entering through the area spaced apart from the central axis.

The present invention can achieve the following effects by combining the above-mentioned embodiment with the configuration, combination, and use relationship described below.

The present invention uses centrifugal force through a filter module having a plurality of wings to increase the efficiency of contact between the gas to be purified and the cleaning water while rotating without power about the central axis using the inflow flow of gas, etc. flowing from the inside of the case. It has the effect of increasing sludge discharge efficiency and reducing filter differential pressure through natural suction due to rotation of the wings.

In the present invention, rather than the existing mesh-shaped porous filter structure, the flat plate of the wing portion is formed to form a streamlined curved surface while extending from the front to the back with respect to the central axis, so that the inflow gas to be purified and the cleaning water are in contact with the flat plate and are smooth. In addition, when the plurality of wings are viewed from the front, the plate area of one wing is arranged so that the plate area of the other adjacent wing does not overlap, which has the effect of minimizing the increase in differential pressure due to the plurality of wings.

The present invention has the effect of maximizing removal efficiency by forming protrusions on both surfaces of a plurality of wings to increase surface area and strengthen turbulence formation.

The present invention has a plurality of wings on the front side in the direction in which the gas to be purified flows in from the case portion and on the back side in the opposite direction, and an opening corresponding to the planar area formed by the wings when viewed from the front, and on the upper, lower, left, and right sides. By forming a plurality of ventilation holes so that sludge can be easily discharged through centrifugal force caused by the rotation of the plurality of wings, it has the effect of facilitating sludge discharge and filter cleaning.

The present invention has the effect of effectively preventing the inflow of sludge by applying a double structure in which the first cover part surrounds the second cover part at the shaft coupling part where the central axis is coupled to the case part and by differentiating each spaced apart area.

Figure 1 is an exploded/combined perspective view of a filter having a conventional mesh structure.
Figure 2 is a perspective view of a rotationally driven vane filter according to an embodiment of the present invention.
Figure 3 is a side view of a rotationally driven vane filter according to an embodiment of the present invention.
Figure 4 is a front view of a rotationally driven vane filter according to an embodiment of the present invention.
Figure 5 is a detailed cross-sectional view of area A-A' in Figure 2
Figure 6 is a reference diagram of a structure in which the wings rotate independently of the fixed central axis.
Figure 7 is a reference diagram of protrusions formed on both surfaces of the wings.

Hereinafter, preferred embodiments of the rotationally driven vane filter for a wet scrubber according to the present invention will be described in detail with reference to the attached drawings. It should be noted that like elements in the drawings are represented by like symbols wherever possible. Unless otherwise specified, all terms in this specification have the same general meaning as understood by a person skilled in the art to which the present invention pertains, and if there is a conflict with the meaning of the terms used in this specification, this specification Follow the definitions used in the specification. Throughout the specification, when a part "includes" a certain component, this means that it does not exclude other components but may further include other components, unless specifically stated to the contrary. Terms such as "...unit" and "...module" refer to a unit that processes at least one function or operation, which may be implemented as hardware, software, or a combination of hardware and software.

Referring to Figures 1 to 7, the rotationally driven vane filter for a wet scrubber according to an embodiment of the present invention includes a case portion 10 accommodating a filter module 30 therein; And a filter module 30 that is accommodated inside the case portion 10 to increase the efficiency of contact between the gas to be purified and the cleaning water, wherein the filter module 30 rotates inside the case portion 10 to purify the water. It is characterized by reducing the differential pressure while increasing the contact efficiency between the target gas and the washing water and increasing the sludge discharge efficiency by centrifugal force.

In the case of a wet scrubber filter to which the present invention is applied, it is a gas-liquid contact device built into a wet scrubber that treats acids, alkalis, PFC waste gases, and wastewater treatment plant odor gases (H2S, etc.) generated in industry, and is generally installed in multiple units within the filter case. With the filter modules installed, the gas to be purified and washing water are supplied, and odors and harmful components are removed from the gas passing through the filter modules. At this time, typical filter modules (existing filter modules) have been applying various mesh structures to increase the removal efficiency of harmful components by increasing the contact area with gas and washing water (see Figure 1). However, as previously explained as a problem with the prior art, in the existing filter structure in which mesh-shaped pieces are cross-stacked, the speed at which the differential pressure rises rapidly increases during actual operation due to blockage caused by sludge adhering and accumulating between the grids. As a result, the cleaning cycle for periodically cleaning the filter is shortened, resulting in a serious increase in operational risks and operating costs. The present invention applies a structure that can fundamentally solve this problem.

That is, the filter module 30 applied to the present invention is not a mesh-shaped piece with a conventional grid, but is made of a surface itself, and uses the inflow flow of gas, etc. flowing from the inside of the case portion 10 to form a central axis 310. Through the filter module 30, which has a plurality of wings 320 that rotate without power and increase the efficiency of contact between the gas to be purified and the cleaning water, the sludge discharge efficiency by centrifugal force is also increased to reduce the differential pressure increase. And it is characterized by a long cleaning cycle. Below, these structures and effects will be described in detail.

The case portion 10 can be viewed as a skeletal frame structure that accommodates the filter module 30 therein. It may be formed as a whole into a hexahedral shape, etc., as shown in FIG. 2, and has a filter module 30 therein. As a case that can accommodate, it can be divided into the front and back where the gas to be purified and the washing water flow in, and the parts that connect the front and back to form the top, bottom, left, and right sides. In other words, the front and back sides can be divided into a base frame that forms the main framework of the case portion 10, and the top, bottom, left, and right sides connecting them can be divided into side frames. In addition, the case portion 10 can be implemented in various forms, such as being divided into an inner frame and an outer frame, or the inner and outer sides can be integrally formed into one frame.

Meanwhile, referring to FIG. 2, the case portion 10 has a plurality of wings 320 of a filter module 30, which will be described later, on the front side in the direction where the gas to be purified and the cleaning water flow in and on the back side in the opposite direction, respectively. an opening 110 corresponding to the planar area formed by the wings 320 when viewed from the front, and a part other than the opening 110 being closed to block the gas to be purified or cleaning water from flowing into the outside of the opening 110. It may be formed to include a shielding portion 120.

That is, the wings 320 of the filter module 30, which will be described later, are rotating and, due to their nature, have a circular cross-sectional area when viewed from the front, and the front and back shapes of the case portion 10 have a circular cross-section. Unless this is the case (for example, when it has a square shape as shown in FIG. 2, etc.), the cross-sectional shape of the front and rear surfaces of the case portion 10 and the cross-sectional shape of the rotation range of the wings 320 are different. In this case, In order to prevent the gas to be purified and the cleaning water flowing in through the case portion 10 from flowing out without directly contacting the wings 320, the opening portion 110 and the shielding portion 120 are formed. do.

That is, the opening 110 corresponds to the planar area formed by the plurality of wings 320 of the filter module 30 when viewed from the front on the front and rear surfaces of the case portion 10, respectively. It is formed in a shape so that the gas to be purified and the cleaning water flowing in through the opening 110 can directly contact the components of the wing 320, and the shielding portion 120 is a portion other than the opening 110. is closed to block gas to be purified or cleaning water from flowing into the outside of the opening 110. However, if necessary, the shielding portion 120 may not be installed on the rear side for the purpose of preventing the flow of gas passing through the wings 320 or reducing the differential pressure reduction effect.

Meanwhile, on the top, bottom, left, and right sides of the case portion 10, as shown in FIG. 2, etc., so that sludge can be easily discharged through centrifugal force generated by the rotation of the plurality of wings 320 of the filter module 30. Likewise, multiple ventilation holes 130 may be formed. Through this, not only the ease of discharging sludge, but also the convenience of cleaning the wing portion 320, etc. is increased.

The case part 10 can be installed with multiple case parts 10 connected in various directions depending on the shape/area of the inside, etc. within the wet scrubber, and washing water is discharged before and after the case part 10. Configuration, etc. may be located.

The filter module 30 is accommodated inside the case part 10 and is configured to increase the efficiency of contact between the gas to be purified and the washing water. In particular, in the present invention, the filter module 30 is installed in the case part 10. ) and a central axis 310 that rotates or is fixed by coupling to the shaft coupling portion 340 at both ends or one end of the axis through a bearing, etc., and is radially coupled to the central axis 310 based on the central axis 310. It is characterized in that it has a form including a plurality of wings 320 that rotate together or separately. The plurality of wings 320 coupled to the central axis 310 do not rotate with a separate power supply, but use a fan operated to introduce the gas to be purified into the wet scrubber and the resulting gas flow. It rotates without a separate power source.

A plurality of the wing parts 320 are arranged around the central axis 310 and rotate in conjunction with the rotating central axis 310 (see FIG. 5) or are separate from the fixed central axis 310. It rotates independently using a sealed bearing 344 (see FIG. 6). At this time, each wing 320 is a flat plate (i.e., the entire surface is closed, rather than the mesh-shaped plate structure that has been used previously). It can be formed to form a streamlined curved surface (in the form of a plate) extending from the front to the back with respect to the central axis 310 (obliquely at an angle of about 30 to 80 degrees). That is, the inflow gas to be purified and the cleaning water are naturally guided to flow along the wing portion 320, and the incoming gas to be purified and the cleaning water are in direct contact with the flat plate of the wing portion 320, while smoothly flowing through the wing portion. As it is guided along the curved shape of 320, it can flow out through the back of the case portion 10. In particular, the streamlined curved shape of the wing portion 320 allows the wing portion 320 to rotate in conjunction with the central axis 310 or rotate separately, thereby increasing the purification target gas and the cleaning water case portion ( 10) It is possible to induce a flow within, and the sludge formed when the gas to be purified and the washing water come into direct contact with the surface of the wing part 320 also flows according to the centrifugal force formed in the rotating wing part 320. It does not stick to or accumulate on the surface of the wing portion 320 and can be smoothly discharged through the ventilation holes 130 on the front, left, right, and left sides of the case portion 10 along the end of the wing portion 320. The wing portion 320 may be made of a polymer-based synthetic resin, etc., and is preferably made of a light material so that it can be easily rotated without being corroded by the acid/alkali of the gas to be purified and the washing water. Additionally, it may be coated with anti-fouling paint, etc., which can prevent contamination due to adhesion of organic substances, etc. Meanwhile, the wing angle, shape, number, etc. of the wing portion 320 can be modified and applied in various ways depending on the situation.

The wing parts 320 may be combined radially around the central axis 310, preferably in numbers of about 3 to 8. In this case, referring to FIG. 4, when viewed from the front, one wing part ( By arranging the plate area of 320 so that it does not overlap with the plate area of other adjacent wing parts 320, an increase in differential pressure due to the plurality of wing parts 320 can be minimized. That is, as the wing portions 320 arranged radially around the central axis 310 increase in overlap (when viewed from the front) between adjacent wing portions 320, the gas to be purified and the cleaning water are absorbed. The contact rate with the wing portion 320 may increase, but this may block the flow of the gas to be purified and the cleaning water, thereby increasing the differential pressure at which they are not discharged smoothly to the rear. In the present invention, it is preferable to When viewed from the front, the plate area of one wing 320 is arranged so that it does not overlap with the plate area of the other adjacent wing 320, so that the wing portion 320 is structured to maximize the contact ratio and minimize the increase in differential pressure. ) can be placed. However, it is not excluded that the wings 320 may be designed and operated so as to overlap in cases where pollutant removal efficiency is very important rather than minimizing the differential pressure increase.

Meanwhile, the wing portion 320 has the same axis as the central axis 310 and forms a structure in which the plurality of wing portions 320 are coupled to the body casing 330 surrounding the central axis 310. (In this case, the body casing 330 may also rotate in conjunction with the rotating type central axis 310 or may rotate independently of the fixed type central axis 310). The front of the body casing 330 is formed to form an inclined surface 331 that widens in the direction from the front to the back, so that the flow of the incoming purification target gas and washing water can be smoothly directed toward the wings 320. . That is, in the process of adopting a structure that allows the plurality of wing parts 320 to be integrated and interlocked through a separate body casing 330, the gas and cleaning water to be purified come into contact with the body casing 330. In order to allow the body casing 330 to face the wing portion 320 where gas-liquid contact is smoothly made, the shape of the front portion of the body casing 330 (if necessary, the rear portion may also be formed in the same manner) is oriented from the front to the back. By forming an inclined surface 331 with a wide diameter, the flow of the incoming purification target gas and cleaning water is smoothly directed toward the wing portion 320.

Additionally, referring to FIG. 7, separate protrusions 321 are formed on both sides of the flat plate of the wing portion 320, thereby increasing the surface area and strengthening the formation of turbulence, thereby increasing the contact efficiency between the gas to be purified and the cleaning water. Efficiency can be maximized, and at this time, the shape or number of the protrusions 321 can be optimized and designed and arranged in consideration of removal efficiency, differential pressure, or sludge discharge effect.

On the other hand, if sludge flows into or accumulates in the shaft coupling part 340 where the central axis 310 is coupled to the case part 10, smooth rotation may be impaired, which also reduces operating efficiency for maintenance. Referring to FIG. 5, in the present invention, the shaft coupling portion 340 includes a first cover portion 341 integrally fixed with the case portion 10, and the central axis ( 310) and a second cover part 342 integrally interlocked, that is, applying a dual structure in which the first cover part 341 is surrounded by the second cover part 342 and sludge removal through differentiation of each spaced apart area. This effectively prevents livestock from entering the shaft coupling portion 340.

That is, in a structure in which the first cover part 341, which is integrally fixed with the case part 10, is surrounded by the second cover part 342, which is integrally linked with the central axis 310, the second cover part (342) is a part spaced apart from the case part 10 (i.e., a part where the second cover part 342 is spaced apart from the case part 10 to rotate with the central axis 310) and the first cover part 342 is spaced apart from the case part 10. By forming the parts where the cover part 341 is spaced apart from the central axis 310 (i.e., the parts where the fixed first cover part 341 and the rotating central axis 310 are spaced apart from each other) are formed at different points. Even if the sludge formed is primarily introduced through the part where the second cover part 342 is spaced apart from the case part 10, the introduced sludge is again inside the first cover part 341. In order to pass through and flow into the central axis 310, the first cover part 341 must pass through a part spaced apart from the central axis 310, and this part is the second cover part 342 of the case part. Because it is located at a different point from the area spaced apart from (10), it is possible to effectively prevent sludge from ultimately flowing into the shaft coupling portion 340.

In addition, a separate covering 343 is provided at the joint area between the second cover part 342 and the central axis 310, which surrounds the area where the first cover part 341 is spaced apart from the central axis 310. It may include an additional sealing function, which can prevent sludge from flowing into the area where the first cover part 341 is spaced apart from the central axis 310. In addition, antifouling paint, etc., which prevents contamination, may be applied to the central axis 310, the shaft coupling portion 340, the case portion 10, etc. Meanwhile, if necessary, in addition to having a dual structure with the first cover part 341 and the second cover part 342 as described above, a sludge penetration prevention structure using a sealed bearing, etc. can be used. It doesn't rule it out.

Below, the results of a flow analysis test to verify the effect of turbulent flow formation after passing through the rotation-driven vane filter according to the present invention will be described.

[Purpose of experiment] Comparison of fluidity according to the shape of rotary driven vane filter

- Experimental Example 1: Rotation driven vane filter according to an embodiment of the present invention

- Experimental Example 2: Vane filter with protrusions formed on the wings of Experimental Example 1

[Figure 1] Shapes of Experimental Examples 1 and 2

- Experimental method: To compare the wake of the rotary driven vane filter, the outlet at the rear of the vane filter was extended to a distance of 2M and the flow state was analyzed (see the rightmost picture in [Figure 1] above).

-Experiment Result 1 (Vorticity): It is interpreted that the smaller the speed difference from the center to the outskirts of each section, the more equalized the flow. As can be seen in [Figure 2] below, the velocity is equalized in Experimental Example 2 compared to Experimental Example 1, resulting in a smoother flow. You can see that leveling is taking place.

[Figure 2]

- Experiment Result 2 (Local mean age): The average time for the working fluid to flow in and out is a measure of how long the fluid stays in the space. The longer the average residence time, the greater the removal efficiency by increasing the contact efficiency between the gas to be purified and the cleaning water. This is interpreted to be maximized, and as can be seen in [Figure 3] below, it can be seen that the average residence time is the highest in Experimental Example 1 compared to Experimental Example 2.

[Figure 3]

In conclusion, through experiments, it was confirmed that in the case of Experimental Example 1, the removal efficiency was increased through increasing the average residence time, and in the case of Experimental Example 2, the removal efficiency was increased through flow equalization.

In the above, the applicant has described various embodiments of the present invention, but such embodiments are only embodiments that embody the technical idea of the present invention, and any changes or modifications are not permitted in the present invention as long as they embody the technical idea of the present invention. It should be interpreted as falling within the scope of.

10: Case portion 110: Opening portion
120: Screening part 130: Ventilation hole
30: Filter module 310: Central axis
320: wing portion 321: protrusion
330: body casing 331: slope
340: shaft coupling portion 341: first cover portion 342: second cover portion
343: covering 344: sealed bearing

Claims (8)

A case portion that accommodates the filter module therein; and
It includes a filter module accommodated inside the case portion to increase the efficiency of contact between the gas to be purified and the cleaning water,
The filter module rotates inside the case portion to increase the contact efficiency between the gas to be purified and the cleaning water and increase the sludge discharge efficiency by centrifugal force while reducing the differential pressure,
The filter module includes a central axis that rotates or is fixed by being coupled to a shaft coupling portion at both ends or one end of the case portion, and a plurality of units that are radially coupled to the central axis with respect to the central axis and rotate together or separately. Includes wings,
The wing portion is formed so that the flat plate extends from the front to the back about the central axis to form a streamlined curved surface, so that the incoming gas to be purified and the washing water can flow out smoothly while contacting the flat plate,
The wing portion is arranged so that the plate area of one wing does not overlap with the plate area of another adjacent wing when viewed from the front, thereby minimizing the increase in differential pressure due to the plurality of blades. A rotary driven vane filter for a wet scrubber. delete According to claim 1,
The case portion has an opening on the front side in the direction in which the gas to be purified flows in and on the back side in the opposite direction, an opening corresponding to the planar area formed by the plurality of wings when viewed from the front, and a portion other than the opening is closed to form an opening. A rotary driven vane filter for a wet scrubber, characterized in that it includes a shielding portion that blocks the inflow of purification target gas or cleaning water to the outside. According to claim 3,
The case part is a rotary driven vane filter for a wet scrubber, characterized in that a plurality of ventilation holes are formed on the upper, lower, left, and right sides so that sludge can be easily discharged through centrifugal force caused by the rotation of the plurality of wings. delete According to claim 1,
The wing portion has the same axis as the central axis and forms a structure in which the plurality of wing portions are coupled to a body casing surrounding the central axis,
A rotary driven vane filter for a wet scrubber, characterized in that the front of the body casing is inclined so that the flow of the incoming purification target gas and washing water is smoothly directed toward the wings. According to claim 1,
The wings form protrusions on both surfaces of the flat plate to increase the surface area and strengthen the formation of turbulence, thereby maximizing removal efficiency by increasing contact efficiency between the gas to be purified and cleaning water. Vane filter. According to claim 1,
The shaft coupling portion includes a first cover portion integrally fixed with the case portion and a second cover portion integrally interlocked with the central axis,
In a structure in which the second cover part surrounds the first cover part, a part where the second cover part is spaced apart from the case part and a part where the first cover part is spaced apart from the central axis are formed at different points, and the part where the second cover part is spaced apart from the case part is formed at different points. The first cover part includes a separate covering at a joint area between the second cover part and the central axis surrounding the area where the second cover part is spaced apart from the central axis, so that sludge is prevented from flowing into the area where the second cover part is spaced apart from the case part or the second cover area. 1. A rotary driven vane filter for a wet scrubber, characterized in that the cover part prevents inflow through the area spaced apart from the central axis.

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