WO2020226164A1 - Separator for removal of fine particles - Google Patents

Abstract

Provided is a separator for removal of fine particles that is very effective at removing fine particles and the like and that has a long life with low pressure loss. The separator is for removing or reducing particles in a gas using intake air and is provided with, in a casing, a gas guidance unit that guides gas flowing in from an inlet and separates particles from the gas, and a particle recovery unit that recovers the particles separated from the gas. The separator is provided with a gas guidance facilitation blade 3a that facilitates guiding the gas to a narrowly formed space, and an ejection blade 3b that ejects the gas and particles forward in the guidance direction, guides the direction of the flow of the ejected gas in a slanted rearward direction from the forward guidance direction directly after ejection via a gap provided on the front of the blade tip, and separates the ejected particles from the gas by centrifugation. This separator further comprises a centrifugation facilitation blade 5 that guides the direction of the flow of the gas ejected by the ejection blade in the slanted rearward direction directly after ejection via the gap with the ejection blade, facilitates centrifugation, and causes the particles moving in a slanted forward direction to inertially collide with the blade face.

Description

Separator for removing dust, etc.

The present invention relates to a technique for removing dust such as volcanic ash and iron powder contained in a gas, rainwater, oil mist, and the like.

Generally, a filter such as a non-woven fabric is used to remove dust such as volcanic ash and iron powder contained in a gas, but the filter such as a non-woven fabric contains an environment in which a large amount of dust is present and mist. There is a problem that clogging occurs in a short time in a non-woven fabric environment. On the other hand, the louver type separator has a long life because it can separate and collect powder and mist by drawing in air with a fan and there is no clogging. In addition, it is cheaper than a cyclone separator and has the advantage that it requires less space for installation.
As a louver type separator, a classifier for solid fine particles is known in which solid fine particles collide with a bent wall surface of a folded plate by inertial force and are dropped to the lower part by gravity along the wall surface of the folded plate to collect the fine particles. (See Patent Document 1). According to this, it is possible to effectively classify large particles and small particles, but it is not possible to purify by removing not only large particles but also small particles from a gas containing dust and the like.

Further, not only large particles but also a multi-stage classifier that facilitates post-treatment according to the particle size of the powder after classification is known (see Patent Document 2). This is equipped with a centrifugal classifier, a collision type classifier, and a gravity type classifier, and is capable of classifying powders having various particle sizes. However, the multi-stage classifier disclosed in Patent Document 2 is not intended for purifying a gas containing dust and the like, and differs in that purpose. In addition, technology for removing dust such as volcanic ash and iron powder contained in gas, rainwater, oil mist, etc. is not always required only in a specific place, and the device is moved to every place. It can be said that it is desirable that it can be used. However, the multi-stage classifier disclosed in Patent Document 2 has a problem that the structure is complicated, the apparatus becomes large-scale, and it is expensive and unsuitable for movement.

Japanese Unexamined Patent Publication No. 2006-68630 Jikkenhei No. 5-18681

In view of such a situation, an object of the present invention is to provide a dust removal separator which has a long life due to low voltage loss, a high dust removal effect, and can be inexpensively and compactly designed.

In order to solve the above problems, the separator for removing dust and the like of the present invention has a casing provided with an intake port and an exhaust port, and a gas outside the casing is sucked from the intake port by a suction means connected to the exhaust port. It is a separator that removes or reduces the particles in the sucked gas in the casing and discharges it from the exhaust port. In the casing, the gas that flows in from the intake port is guided and the particles in the gas are separated. It includes an induction unit and a particle collection unit that collects particles separated from the gas.
The gas induction portion is ejected through a gas induction promoting blade that promotes the induction of gas into a narrow space, and a gap provided in front of the tip of the blade while ejecting gas and particles forward in the induction direction. It is provided with an ejection blade that guides the flow direction of the gas from the front to the diagonally rearward in the induction direction immediately after the ejection and centrifuges the ejected particles from the gas.
The particle recovery unit is provided in front of the ejection blade and collects particles to be centrifuged when guiding the particles diagonally backward.
Here, in order to promote centrifugation, the flow direction of the gas ejected by the ejection blade is guided diagonally backward immediately after ejection through the gap with the ejection blade to promote centrifugation and particles directed diagonally forward. It is preferable to further provide a centrifugal separation promoting blade that causes an inertial collision with the blade surface.

The separator for removing dust and the like according to the first aspect of the present invention will be described.
In the separator for removing dust and the like according to the first aspect, the gas induction unit includes a first gas induction unit and a second gas induction unit. The first gas induction unit has a plurality of louver blades arranged at intervals so as to descend from the intake port side to the exhaust port side, and the louver blades downward the airflow from the intake port side to the exhaust port side. The inclination angle of the blade surface is provided so as to hold it down, and the arrangement of the louver blades forms a narrow space through which the gas passes from the intake port side to the exhaust port side.
In addition, the second gas induction unit forms the gas induction promotion blade that promotes the induction of gas into the narrowly formed space, forms the space, and ejects gas and particles from the space forward. The ejection blade that guides the flow direction of the ejected gas upward immediately after ejection through the gap provided in front of the blade tip and centrifuges the ejected particles from the gas, and the intake port side to the exhaust port side. An inclination angle of the blade surface is provided so as to suppress the airflow toward the downward direction, and the flow direction of the gas ejected by the ejection blade is guided upward or diagonally upward immediately after ejection through the gap with the tip of the ejection blade. The above-mentioned centrifugation promotion blade for promoting the above-mentioned centrifugation is provided. It can also be assumed that the particles moving diagonally upward and forward of the centrifuge-promoting blade inertially collide with the blade surface.
The particle recovery unit is provided below the casing and collects particles that inertially collide with the blade surface and settle due to gravity or are centrifuged.

The louver blades are provided with an inclination angle of the blade surface so as to suppress the air flow from the intake port side to the exhaust port side downward, and are arranged in a staircase pattern at intervals so as to descend from the intake port side to the exhaust port side. Will be done. Therefore, the gas flowing in from the intake port, in order from the louver blade arranged on the intake port side, is brought into the gas by gravity due to the inertial collision caused by contacting the lower surface side of the louver blade. The contained particles will settle. Here, the particles are dust such as volcanic ash and iron powder, rainwater, oil mist, and the like. Further, the intake port side and the exhaust port side are used to mean the side where the intake port exists and the side where the exhaust port exists, as well as the main airflow directions of the intake side and the exhaust side. For example, if there is an intake port on the left side of the casing and an exhaust port on the right side, the main airflow direction is from left to right. On the other hand, when there is an intake port and an exhaust port on one side of the casing and the intake side and the exhaust side are separated by piping or the like, it is interpreted as the intake side and the exhaust side.
By providing the louver blades at predetermined intervals, the gas containing no particles or reduced gas can escape upward. As a result, it is possible to form a low-voltage loss while maintaining the effect of removing dust and the like. Here, the spacing between the louver blades is preferably an even spacing, but may be different for each louver blade. Further, "with a gap" merely means to exclude the louver blades from adhering to each other on the entire surface, and a part of the louver blades may be in contact with or adhered to each other.

Due to the arrangement of the louver blades, the space through which the gas passes in the first gas induction portion is formed to be wide on the intake port side and narrow on the exhaust port side, so that the gas flow velocity becomes slow near the intake port. , The flow velocity increases as it goes to the exhaust port side. By slowing the flow velocity of the gas in the vicinity of the intake port, it is possible to promote the sedimentation of the particles and prevent the gas containing a large amount of particles from being entrained in the second gas induction portion.
The precipitated particles are recovered in the particle recovery section, and the gas from which the relatively large particles have been removed is guided to the second gas induction section.

The second gas induction portion is provided with a gas induction promotion blade that promotes the induction of gas into a narrow space, and the gas induction promotion blade prevents or suppresses leakage of gas including dust and the like. It is preferable that the gas is connected to the ejection blade because of the function of the gas. Further, like the louver blade, the gas induction promoting blade is preferably provided with an inclination angle of the blade surface so as to suppress the air flow from the intake port side to the exhaust port side downward.
The ejection blade forms a narrow space between the partition portion that separates the gas induction portion and the particle recovery portion or the bottom portion in the casing, and ejects gas and particles forward from the narrow space at high speed. Here, the front means the front in the gas flow direction. The ejected gas has a smaller area than the partition portion that separates the gas guiding portion and the particle collecting portion or the bottom portion in the casing, and a gap is provided in front of the tip of the ejected blade. Is suddenly changed upward on the exhaust port side of the ejection blade, that is, at the tip of the ejection blade, so that the particles are separated in front of the ejection blade by centrifugation. The separated particles are collected in the particle collection unit.

The centrifugal separation promotion blade is provided with an inclination angle of the blade surface so as to suppress the airflow from the intake port side to the exhaust port side downward, and the flow direction of the gas ejected by the ejection blade is separated from the tip of the ejection blade. Immediately after the ejection, the gas is guided upward or diagonally upward rearward through the gap with the facilitating blade. Then, the centrifugal separation promoting blade promotes the centrifugal separation that separates the ejected particles from the gas by centrifugal force, and inertially collides the particles heading diagonally forward and upward with the blade surface.
By providing the centrifugation promoting blade, the gas flow is guided upward or diagonally upward rearward immediately after the ejection, so that the curvature becomes steeper and the centrifugation performance at the tip of the ejection blade is further promoted. As the gap between the tip of the ejection blade and the centrifugation promoting blade becomes narrower, the inclination of the blade surface of the centrifugation promoting blade causes the gas flow to pass through the gap from the ejection direction (front) and to move diagonally upward and backward, as if it were a hairpin. A sharp curvature will be formed like a curve.

In the separator for removing dust and the like of the present invention, the particle recovery unit recovers particles contained in the gas by settling them by gravity due to inertial collision caused by contact of the gas with the louver blade of the first gas induction unit. It is preferable to include a particle recovery unit of 1 and a second particle recovery unit that recovers particles centrifuged by a second gas induction unit or particles that have collided with inertia.
When the particles contained in the gas are settled by gravity, when the gas comes into contact with the louver blade of the first gas induction part, the kinetic energy of the particles is reduced by inertial collision and the particles are settled downward by the gravity acting on the particles. Say that.
The first particle recovery unit and the second particle recovery unit each have separate openings and can collect particles, but the particle recovery unit for collecting the collected particles is integrated. Is preferable.

In the separator for removing dust and the like of the present invention, immediately after flowing in from the intake port, particles having a relatively large specific gravity or particles having a relatively large size floating in the gas are inertially collided with the rectifying blade surface and settled by their own weight. It is preferable that a third gas induction unit including at least one rectifying blade is further provided.
By providing the rectifying blade, particles having a relatively large specific gravity or particles having a large size are settled on the blade surface at an early stage by inertial collision and gravity from the gas immediately after flowing in from the intake port, and the particle recovery efficiency is improved. Can be enhanced. It is preferable that the rectifying blade has a shape in which an inclination is provided so as to descend from the intake port side to the exhaust port side, and the inclination is gentler than that of each louver blade.

It is preferable that the separator for removing dust and the like of the present invention is further provided with a third particle recovery unit for recovering particles that have inertially collided with each other in the third gas induction unit.
By providing the third particle recovery unit, particles having a relatively large specific gravity or particles having a large size can be recovered at an early stage from the gas immediately after flowing in from the intake port. The third particle recovery unit has an opening different from the opening provided in the first particle recovery unit or the second particle recovery unit, but the particle recovery unit that stores the recovered particles is the first particle recovery unit. It is preferable that the particle recovery unit and the second particle recovery unit are integrated.

In the separator for removing dust and the like of the present invention, it is preferable that at least one of the louver blades is extended with the upper end curved or bent toward the intake port side.
By forming the upper end of the louver blade toward the intake port side, it is possible to retain the gas flowing between the louver blades and prevent particles in the gas from escaping upward.

In the separator for removing dust and the like of the present invention, it is preferable that at least one of the louver blades is extended with the lower end curved or bent toward the exhaust port side.
By forming the lower end of the louver blade toward the exhaust port side, the amount of gas flowing between the louver blades itself can be reduced, and particles in the gas can be prevented from escaping upward.

In the separator for removing dust and the like of the present invention, it is preferable that the second particle collecting section is provided with a chamber for collecting the centrifuged particles by reducing the flow velocity of the inflowing gas.
Since the gas flowing into the second particle recovery unit is a gas ejected from the second gas induction unit at high speed, there is a risk of backflow. Therefore, by providing a chamber, the velocity of the inflowing gas can be reduced to form a structure capable of efficiently collecting particles.

When the separator for removing dust and the like of the present invention is provided with a chamber for reducing the flow velocity of the gas flowing into the second particle collecting portion, the inner wall of the chamber alleviates the rebound of particles due to the collision of the gas. It is preferable that the cushion member is provided.
By providing the cushion member on the inner wall of the chamber, it is possible to alleviate the phenomenon that the gas collides with the inner wall of the chamber and the particles bounce off. As the cushion member, for example, a non-woven fabric, felt, or the like is used.

In the separator for removing dust and the like of the present invention, it is preferable that the second particle collecting unit is provided with an electrostatic precipitator. The second particle recovery unit reduces the flow velocity of the inflowing gas to collect the centrifuged particles. At this time, in order to collect even those having an extremely small particle size, an electrostatic precipitator is used. Further prepare. The electrostatic dust collecting means is composed of an electrode for charging suspended particles, an electrode for attracting charged particles, a filter charged with a charge opposite to the charged particles, and the like.

In the separator for removing dust and the like of the present invention, the casing is preferably a polygonal prism shape or a cylindrical shape.
Since the casing has a polygonal prism shape or a cylindrical shape, it can be compactly connected in combination with an external dust collecting means, a gas-liquid separating means, an intake means, or the like, and a space-saving configuration can be obtained. In addition, it is easy to design and convenience is improved even when it is attached to a trolley or the like and has a movable configuration. Therefore, it is preferable that the casing and other equipment can be connected without using piping. The cylinder in the cylindrical shape also includes an elliptical pillar.

The separator for removing dust and the like from the second aspect and the third aspect of the present invention will be described.
First, in the separator for removing dust and the like from the second viewpoint and the third viewpoint, the flow direction of the gas ejected by the ejection blade is guided diagonally backward immediately after ejection through the gap with the ejection blade, and the above-mentioned centrifugation is performed. It is premised that a centrifugal separation promoting blade is further provided, which promotes separation and causes inertial collision of particles obliquely forward with the blade surface.
In the separator for removing dust and the like according to the second aspect, the gas induction portion takes in air from the slit-shaped opening on the intake side, and ejects gas forward from the slit whose slit width is narrowed by the gas induction promotion blade and the ejection blade. Immediately after the ejection, the gas is guided diagonally backward by the centrifugation promoting blade, and the gas is guided forward again from the tip of the centrifugation promoting blade. Then, it is discharged from the slit-shaped opening on the exhaust side.
Further, in the separator for removing dust and the like from the second aspect, the particle collecting portion has a slit-shaped accommodating portion equal to or larger than the narrowed slit width and equal to or larger than the slit length, and the accommodating portion serves as a gas guiding portion. On the other hand, it has a configuration in which it is arranged at a front position and an adjacent position. The front-positioned containment collects particles that centrifuge when guided diagonally backwards. On the other hand, the accommodating portion at the adjacent position collects the particles to be centrifuged when the gas is guided forward again from the tip of the centrifugation promoting blade.

In the separator for removing dust and the like according to the third aspect, the gas induction portion takes in air from the slit-shaped opening on the intake side, and ejects gas forward from the slit whose slit width is narrowed by the gas induction promotion blade and the ejection blade. Immediately after the ejection, the centrifugation promoting blade guides the gas diagonally backward, guides the gas diagonally forward from the tip of the centrifugation promoting blade, and guides the gas diagonally backward again. Then, it is discharged from the slit-shaped opening on the exhaust side.
Further, in the separator for removing dust and the like from the third aspect, the particle collecting portion has a slit-shaped accommodating portion equal to or larger than the narrowed slit width and equal to or larger than the slit length, and the accommodating portion serves as a gas guiding portion. On the other hand, it is placed in the front position and is configured to collect particles.

In the separator for removing dust and the like from the second and third viewpoints, the gas guiding portion and the particle collecting portion are plane-symmetrical with respect to each central surface in the length direction of the slit, and the respective central surfaces are coplanar. Each is arranged so as to be. Further, the gas induction promotion blade, the ejection blade, and the centrifugation promotion blade are arranged at positions symmetrical with respect to the central surface. By providing such a configuration, the structure can be simplified, the manufacturing cost of the separator can be reduced, and the quality of the manufacturing surface can be improved.
Further, in the separators for removing dust and the like from the second and third viewpoints, the partition surface serving as the central surface may be formed, and by forming the partition surface, many accommodating portions having a reduced volume are provided. be able to.

Here, it is preferable that the inner wall of the accommodating portion of the particle collecting portion is subjected to a dust scattering prevention process by forming irregularities, applying a dust adsorbent, or attaching a dust adsorbing sheet.

In the separator for removing dust and the like from the second and third viewpoints, it is preferable that a plurality of pairs of the gas induction portion and the particle recovery portion are arranged in parallel. By arranging a plurality of slit-shaped openings in parallel, the opening area of the intake port is adjusted. In this case, the casing has two panel surfaces facing each other, an intake port is arranged on one panel surface, and an exhaust port is arranged on the other panel surface, so that the thickness can be reduced as compared with the vertical or horizontal length of the panel surface. .. It can be shaped like a rectangular filter, allowing for a compact design.

In the separator for removing dust and the like of the present invention, it is preferable that the gas guiding portion further includes a mist spraying means. The mist spraying means artificially atomizes and sprays (sprays) a liquid such as water, and sprays water or the like into the gas by atomizing the gas entering from the intake port. It is possible to wet the floating dust and improve the recovery efficiency by sedimentation by gravity or centrifugation.

According to the separator for removing dust and the like of the present invention, since there is no clogging, there is an effect that the life is long due to low pressure loss, the effect of removing dust and the like is high, and an inexpensive and compact design becomes possible.

Front image of the separator for removing dust and the like according to Example 1. Perspective image of the separator for removing dust and the like according to Example 1. Explanatory drawing of the louver blade of Example 1 Explanatory drawing of the louver blade of Example 2 Front image of the separator for removing dust and the like according to Example 3. Schematic image of the dust removing device of Example 4 Explanatory drawing of separator for removing dust etc. of Example 5 Schematic diagram of the appearance of the separator for removing dust and the like according to Example 6. Schematic cross-sectional view of the separator for removing dust and the like according to Example 6. Structural explanatory view of the separator for removing dust and the like of Example 6 Schematic diagram of the appearance of the separator for removing dust and the like according to Example 7. Structural explanatory view of the separator for removing dust and the like according to Example 7.

Hereinafter, an example of the embodiment of the present invention will be described in detail with reference to the drawings. The scope of the present invention is not limited to the following examples and illustrated examples, and many modifications and modifications can be made.

FIG. 1 shows a front image of the separator for removing dust and the like according to the first embodiment. As shown in FIG. 1, the dust removal separator 1 includes a gas induction unit 1a and a dust collection unit 1b. The gas induction unit 1a is provided with an intake port 7a and an exhaust port 7b, and has a structure in which a gas containing dust or the like is sucked from the intake port 7a and discharged from the exhaust port 7b. Although not shown, gas suction is performed by connecting a blower to the exhaust port 7b side. The exhaust port 7b has a configuration that can be compactly connected to another dust removing unit without piping, but it is also possible to connect piping (not shown). The dust collection unit 1b includes a first dust collection unit 4a, a second dust collection unit 4b, and a third dust collection unit 4c, and the gas induction unit 1a and the dust collection unit 1b are partitioned by a partition unit 1c. ing.
The partition portion 1c is provided with an opening (1d to 1f), and is provided through the opening 1d to the first dust collecting portion 4a, through the opening 1e to the second dust collecting portion 4b, and through the opening 1f to the third. The structure is such that gas can flow into the dust collecting unit 4c. Further, a centrifugal separation promoting blade 5 is provided on the exhaust port side of the opening 1e. A louver blade (2a to 2k), a rectifying blade (21a to 21e), a gas induction promoting blade 3a and an ejection blade 3b are provided inside the gas guiding portion 1a, and the gas induction promoting blade 3a and the ejection blade 3b are connected to each other. ing.

FIG. 2 shows a perspective view of the separator for removing dust and the like according to the first embodiment. In FIG. 2, for convenience of explanation, the rectifying blades (21a to 21e) and the third dust collecting unit 4c are not shown, and the number and shape of the louver blade 2 and the like are also shown in a simplified manner.
As shown in FIG. 2, the dust removal separator 1 has a substantially rectangular parallelepiped shape, and the louver blade 2 has a substantially rectangular parallelepiped shape in front of the dust removal separator 1 in the gas induction portion 1a. It is fixed so that it abuts on any of the back surfaces. As a result, the gas 8 does not leak from the left and right sides of the louver blade 2, that is, the portions that come into contact with the front surface and the back surface of the dust removal separator 1.

As shown in FIG. 1, the louver blades (2a to 2k) are all arranged with an inclination from the upper left to the lower right. Since the louver blades (2a to 2k) are arranged so as to be inclined from the upper left to the lower right, the gas 8a flowing in from the intake port 7a collides with the lower surface of the louver blades (2a to 2k) and moves downward. Not only is the space near the intake port formed wide, and the space gradually narrows as the gas flows to the right, so the suction speed near the intake port can be reduced, and dust moves to the right. The amount of entrainment can be reduced.

Here, the structure of the louver blades (2a to 2k) will be described. FIG. 3 shows an explanatory view of the louver blade of the first embodiment. For example, in a flat plate-shaped louver blade (not shown), since the gas easily escapes from the gap between the blades, there is a problem that dust and the like contained in the gas also easily escape together. Therefore, as shown in FIG. 3, the upper end portion 12a of the L-shaped louver blades (2a to 2e) is bent substantially 90 ° toward the left. The gas 8 is basically guided from the upper left to the lower right while colliding with the lower surface of the louver blades (2a to 2e), but as shown by the arrow 6c, a part of the gas 8 is the louver blade 2a. And the louver blade 2b, the louver blade 2b and the louver blade 2c, the louver blade 2c and the louver blade 2d, or the louver blade 2d and the L-shaped louver blade 2e. However, since the upper ends of the L-shaped louver blades (2a to 2e) are bent to the left by approximately 90 °, the gas 8 stays in the gap between the blades as shown by the arrow 6c. The structure is such that dust and the like are unlikely to leak upward from the gap between the blades.

The rectifying blades (21a to 21e) are provided to cause particles having a relatively heavy specific gravity or particles having a relatively large size floating in the gas 8a flowing in from the intake port 7a to inertially collide with the blade surface and settle by their own weight. It is provided with a gentler inclination than the louver blades (2a to 2k). Of the dust floating in the gas 8a flowing in from the intake port 7a, relatively heavy dust and dust having a large size inertially collide with the surface of the rectifying blade (21a to 21e) and settle due to their own weight, so that the dust from the gas 8a It is separated, guided downward as shown by the arrow 8b, flows into the third dust collecting unit 4c from the opening 1f, and is collected as dust 9 by the dust collecting unit 90.

Of the gas 8a flowing in from the intake port 7a, the gas 8c from which relatively heavy dust and large-sized dust have been removed is guided downward while touching the lower surface of the louver blades (2a to 2k).
In this embodiment, the louver blades (2a to 2k) are arranged in a stepwise manner from the intake port 7a side to the exhaust port 7b side at regular intervals.
By providing a plurality of louver blades, the inflowing gas 8a does not survive the air flow changing the direction by the louver blades (2a to 2k), but collides with the lower surface of the louver blades (2a to 2k) due to its own inertia. As a result, the dust contained in the gas 8c tends to fall downward.

Since relatively large dust generally has a heavy specific gravity, it is collected by the third dust collecting unit 4c described above. Therefore, the downwardly guided gas 8c contains relatively small dust. Of the relatively small dust floating in the downwardly guided gas 8c, the slightly larger ones settle due to inertial collision and gravity due to the blade surface of the louver blade (for example, 2d to 2k), as shown by arrow 8d. It is guided downward and flows into the first dust collecting unit 4a from the opening 1d, and is collected as dust 9 by the dust collecting unit 90.
The first dust collection unit 4a, the third dust collection unit 4c, and the second dust collection unit 4b, which will be described later, are in communication with each other, and the dust and the like collected in any of the collection units are connected to the same dust collection unit 90. It has a structure to be accommodated. Unlike such a configuration, the first dust collecting unit 4a, the second dust collecting unit 4b, and the third dust collecting unit 4c may each include an independent dust collecting unit. When a structure is provided with an independent dust collection unit, dust having different particle sizes can be classified and collected, and convenience in subsequent processing can be improved.
Further, the collected dust 9 can be disposed of by opening the dust extraction port 25 provided in the dust collection unit 1b as shown by arrow 6a and pulling out the dust collection unit 90 as shown by arrow 6b. it can.

Further, the gas 8c is a narrow space formed between the ejection blade 3b and the partition portion 1c while preventing the extremely small dust suspended in the upward gas 8e from leaking upward by the gas induction promoting blade 3a. Is guided to the gas and is ejected at high speed from the right end of the ejection blade 3b. The ejection blade 3b abruptly changes the flow direction of the gas 8e sucked upward at the tip of the ejection blade 3b, thereby separating the dust in front of the ejection blade 3b by centrifugation.
That is, the area around the root of the gas 8e indicated by the arrow represents the flow of the gas ejected diagonally downward from the horizontal by the ejection blade 3b and the particles contained in the gas, and then the ejection blade is sucked by the suction on the exhaust port 7b side. Due to the centrifugal separation force caused by the sudden upward change in the direction of the gas through the gap formed between the right end of 3b and the centrifugal separation promoting blade 5, the dust suspended in the gas 8e is left as it is from horizontal to diagonal. Proceed downward (arrow 8f) to the chamber box 13, which will be described later. Alternatively, among the dust, the dust that rises diagonally upward from the horizontal collides with the blade surface of the centrifugation promoting blade 5 and changes in the direction toward the chamber box 13. In this way, the dust suspended in the gas 8e flows into the second dust collecting unit 4b from the opening 1e and is collected as the dust 9 in the dust collecting unit 90.
The narrower the gap between the ejection blade 3b and the centrifugal separation promoting blade 5, the narrower the gap between the ejection blade 3b and the centrifugal separation promoting blade 5 is provided because the gas 8e faces diagonally upward and rearward rather than above. It is also possible to have a configuration in which centrifugal force works strongly.

Since the gas 8e is ejected from the narrow space formed between the ejection blade 3b and the partition portion 1c, it is ejected at a high speed. Therefore, even in the direction in which the dust advances (arrow 8f), the dust flows into the second dust collecting unit 4b from the opening 1e while maintaining a high flow velocity. If the particle velocity in the direction 8f in which the dust advances remains high, the dust may flow back in the direction of the opening 1e. Therefore, a chamber box 13 is provided above the second dust collecting portion 4b. .. A cushion member 14 is attached on the inner wall surface of the chamber box 13 to prevent dust from rebounding when it collides with the inner wall surface of the chamber box 13. The dust that has flowed into the second dust collecting unit 4b has a low flow velocity due to the wide space of the chamber box 13 and the cushion member 14, and is collected as dust 9 by the dust collecting unit 90.

FIG. 4 shows an explanatory diagram of the louver blade of the second embodiment. In this embodiment, an S-shaped louver blade will be described. As shown in FIG. 4, in the S-shaped blades (22a to 22e), the upper end portion 12a is curved toward the left and the lower end portion 12b is curved toward the right. The gas 8 collides with the lower surface of the S-shaped blades (22a to 22e) from the left, and the S-shaped blades 22a to the S-shaped blades 22b, the S-shaped blades 22b to the S-shaped blades 22c, and the S-shaped blades. The lower surface is touched in this order from 22c to the S-shaped blade 22d and from the S-shaped blade 22d to the S-shaped blade 22e, and as shown in FIG. 4, the gas is basically guided from the upper left to the lower right, but the arrow 6d indicates. As shown, a part of the gas 8 is a gap between the S-shaped blade 22a and the S-shaped blade 22b, a gap between the S-shaped blade 22b and the S-shaped blade 22c, and a gap between the S-shaped blade 22c and the S-shaped blade 22d. Or the gap between the S-shaped blade 22d and the S-shaped blade 22e. However, unlike the L-shaped louver blades (2a to 2e) shown in FIG. 3, the S-shaped blades (22a to 22e) have an L-shape because the lower end portion 12b is curved toward the right. The shape is such that the gas 8 is less likely to flow between the blades than the louver blades (2a to 2e) of the mold. Further, even when the gas 8a flows between the blades, the S-shaped blades (22a to 22e) have the upper end portion 12a curved toward the left, so that the gas 8 is as shown by the arrow 6d. Since it stays in the gap between the blades, dust and the like are hard to leak upward from the gap between the blades.

FIG. 5 shows a front image of the separator for removing dust and the like according to the third embodiment. As shown in FIG. 5, the dust removal separator 100 includes a gas induction unit 1a and a dust collection unit 1b. The gas induction unit 1a is provided with an intake port 7a and an exhaust port 7b, and has a structure in which a gas containing dust or the like is sucked from the intake port 7a and discharged from the exhaust port 7b. This point is the same as that of the dust or the like removing separator 1 described in the first embodiment.
However, the dust removal separator 100 differs from the dust removal separator 1 in the following points. That is, the dust collecting unit 1b includes a first dust collecting unit 4a and a second dust collecting unit 4b. The partition 1c is provided with openings (1d, 1e) so that gas can flow into the first dust collecting part 4a through the opening 1d and into the second dust collecting part 4b through the opening 1e. ing. Further, a louver blade (2a to 2k), a gas induction promoting blade 3a and a ejection blade 3b are provided inside the gas induction portion 1a, and the gas induction promoting blade 3a and the ejection blade 3b are connected to each other.

As shown in FIG. 5, since the separator 100 for removing dust and the like is not provided with the rectifying blades (21a to 21e) as shown in FIG. 1, relatively large dust is collected in advance in the third dust collecting unit 4c. Although it cannot be collected, the louver blades (2a to 2k) and the first dust collecting unit 4a are provided so that even relatively large dust can be collected by the first dust collecting unit 4a. ..
Further, although the centrifugation promoting blade 5 is not provided, the structure is such that the dust contained in the gas 8e is centrifuged by the gap provided between the right end portion of the ejection blade 3b and the chamber box 13. Although the chamber box 13 is not provided with the cushion member 14, it has a structure in which the flow velocity of the inflowing gas 8f is reduced by the wide space provided in the chamber box 13.
As described above, even a separator having a simple structure composed of a relatively small number of members can effectively remove or reduce dust and the like, so that it can be manufactured compactly and at low cost.

FIG. 6 shows a schematic image diagram of the dust removing device of the fourth embodiment. As shown in FIG. 6, the dust removing device 10 includes a dust removing separator 11, a wet dust collector 30, a gas-liquid separator 40, a blower 50, and a trolley portion 60, and includes a dust removing separator 11 and a wet collecting device. The dust device 30, the gas-liquid separator 40, and the blower 50 are installed on the carriage unit 60. The dust removing device 10 sucks external air from the intake port 71a by operating the blower 50, removes the dust, and then discharges the air from the exhaust port 71b. The dust is removed by using the dust removal separator 11 and the wet dust collector 30. Further, the carriage portion 60 is provided with wheels (60a, 60b) so that it can be easily moved.
Regarding the structure of the separator 11 for removing dust and the like, unlike the first embodiment, the dust collecting unit 11b is not provided with the third dust collecting unit 4c, but the other parts have a similar structure.
That is, as shown in FIG. 6, a plurality of louver blades 2 and rectifying blades 21 are provided in the gas induction portion 11a, and all of them are arranged so as to be inclined from the upper left to the lower right. By arranging the louver blade 2 and the rectifying blade 21 with an inclination from the upper left to the lower right, relatively large dust floating in the gas 8a flowing in from the intake port 71a moves downward as shown by the arrow 8h. Is induced.
The downwardly guided dust is settled by the louver blade 2 or the rectifying blade 21 due to inertial collision and gravity, and is collected as dust 9 by the dust collecting unit 11b.
On the other hand, relatively small dust is guided to the space formed between the ejection blade 3b and the partition portion 11c and ejected. For relatively small dust, the flow direction of the gas sucked upward by the ejection blade 3b and the centrifugation promoting blade 5a changes rapidly as shown by the arrow 8i, and the dust is separated forward and downward (arrow). It is separated in the direction of 8n). A centrifugation promoting blade 5a is provided at the right end of the gas guiding portion 1a, and dust is dropped downward by centrifugation and inertial collision.

The wet dust collector 30 is used to remove finer dust from the gas 8j from which the dust has been removed by the dust or the like removing separator 11. An antifreeze solution 32 containing calcium chloride or the like is housed in the wet dust collecting chamber 31. The gas introduction pipe 34 of the tube group type scrubber 33 is inserted into the liquid of the antifreeze liquid 32. The gas 8j sent to the tube group type scrubber 33 is ejected from the lower end of the gas introduction tube 34 to form bubbles, and when it comes into contact with the antifreeze liquid 32, fine dust is removed.
The gas 8k from which dust has been removed by the antifreeze liquid 32 is sent to the gas-liquid separator 40, where it is separated into a gas 8m and a liquid, and only the gas 8m is discharged from the exhaust port 71b through the pipe 70. ..

The wet dust collector 3 can collect fine dust, but when the collected dust accumulates and the collection efficiency decreases, it is necessary to replace the antifreeze liquid 32 itself in order to increase the collection efficiency. There is a cost and labor. On the other hand, when the separator 11 for removing dust or the like is provided, when the collected dust is accumulated, the dust 9 collected from the dust extraction port 25 shown in FIG. 1 is collected by the dust collection unit (FIG. There is an advantage that it does not require cost and labor because it only needs to be taken out (not shown). Therefore, by providing a separator 11 for removing dust or the like in front of the wet dust collector 3, most of the dust is collected by the separator 11 for removing dust or the like, and then only fine dust is collected by the wet dust collector 30. It can be collected and maintenance can be performed at low cost.

As shown in FIG. 6, the gas 8k from which the dust has been removed by the wet dust collector 30 is sent to the gas-liquid separator 40. Since the gas 8k that has passed through the antifreeze liquid 32 contains a small amount of water, the gas and the liquid are separated by using the gas-liquid separator 40.
The gas-liquid separator 40 has a structure in which a gas flowing in from above the room is guided downward and the gas and liquid are separated by centrifugation. The gas-liquid separator 40 includes a first gas-liquid separation chamber 41 and a second gas-liquid separation chamber 42. The first gas-liquid separation chamber 41 is provided with an inclined plate 24a, and the second gas-liquid separation chamber 42 is provided with an inclined plate 24b. Further, the first gas-liquid separation chamber 41 and the second gas-liquid separation chamber 42 are separated by a partition wall 23. The partition wall 23 is adhered without a gap at the lower ends of the first gas-liquid separation chamber 41 and the second gas-liquid separation chamber 42, but the first gas-liquid separation chamber 41 and the second gas-liquid separation are separated. It is not adhered to the upper end of the chamber 42, and a gap is provided as a gas flow path.

The gas 8k flowing into the first gas-liquid separation chamber 41 is guided downward, and the gas 8l from which the liquid is separated is centrifuged into gas and liquid by an inclined plate 24a having a V-shaped lower end. , Is guided to the second gas-liquid separation chamber 42. Similarly, 8 liters of gas flowing into the second gas-liquid separation chamber 42 was guided downward, and was centrifuged into gas and liquid by an inclined plate 24b having a V-shaped lower end, and the liquid was separated. The gas 8 m is discharged from the exhaust port 71b through the pipe 70.

The structure of the separator for removing dust and the like of the present invention provided with the electrostatic precipitator in the second particle collecting unit will be described with reference to FIG. 7. In FIG. 7, the second particle recovery unit 4b reduces the flow velocity of the inflowing gas 8f to collect the centrifuged particles, but at this time, in order to collect even those having an extremely small particle size. The dust collecting electrode 81 and the dust collecting electrode 82 are provided as an electrostatic precipitator. In the discharge electrode 81, small particles floating in the inflowing gas 8f are charged, and the charged particles are attracted by the dust collecting electrode 82, so that even smaller particles that are not collected by the action of gravity or centrifugation can be collected, and the dust collecting performance. Can be further improved.

An embodiment of a separator for removing dust and the like according to a second aspect of the present invention will be described with reference to FIGS. 8 to 10. FIG. 8 is a schematic external view (perspective image) of the separator, and FIG. 9 is a schematic cross-sectional view. In the schematic external view of FIG. 8, the state in which the upper lid is removed is shown in order to understand the internal structure.
As shown in FIG. 8, the dust and the like removing separator 200 of the present embodiment has a panel-shaped casing 204 whose thickness is smaller than the vertical and horizontal lengths of the panel surface, and intake air is taken from one panel surface of the casing 204. Slit-shaped openings 205 (intake ports) for sucking 201 are arranged in parallel. Further, on the other panel surface facing each other, a slit-shaped opening 206 (exhaust port) for discharging the exhaust 202 is arranged in parallel. In the separator of this embodiment, eight pairs of gas induction parts and particle recovery parts in a frame surrounded by a broken line in FIG. 9 are arranged in parallel. The movement of the gas flowing in the flow path of the gas induction unit is indicated by an arrow in FIG.

The gas induction unit and the particle recovery unit in this embodiment will be described with reference to FIG. The gas induction unit is configured to eject the gas entering from the slit-shaped opening 205 on the intake side forward from the slit 207 whose slit width is narrowed by the gas induction promotion blade 3a and the ejection blade 3b. Further, the gas guiding portion guides the gas diagonally backward immediately after the ejection by the centrifugation promoting blade 5, and guides the gas forward again from the tip of the centrifugation promoting blade 5, and the slit-shaped opening 206 on the exhaust side. It is configured to drain from. The particle collecting portion has a slit-shaped accommodating portion (211a, 211b) having the same width as the slit-shaped opening 205, larger than the slit width of the slit 207 having a narrowed slit width, and equal to or larger than the slit length. The part is configured to be arranged at a position adjacent to the front position with respect to the gas induction part. The accommodating portion 211a at the front position collects the dust 9a that centrifuges when guiding the gas diagonally backward, and the accommodating portion 211b at the adjacent position centrifuges when the gas is again induced forward from the tip of the centrifugation promoting blade 5. The separated dust 9b is collected. In the figure, the arrows show the rough flow of gas.

The pair of the gas induction part and the particle recovery part shown in FIG. 10 (1) is surrounded by a broken line frame in FIG. This may be regarded as a unit, or the pair of the gas induction part and the particle recovery part shown in FIG. 10 (2) may be regarded as the minimum unit. The pair of the gas induction unit and the particle recovery unit shown in FIG. 10 (1) is a pair symmetrically adjacent to each other shown in FIG. 10 (2).
Here, when the pair of the gas induction unit and the particle recovery unit shown in FIG. 10 (1) is regarded as a unit, the partition plate 212 may not be provided.

The separator for removing dust and the like according to the third aspect of the present invention will be described with reference to FIGS. 11 and 12. FIG. 11 is a schematic external view (perspective image) of the separator, and FIG. 12 is a schematic cross-sectional view. In the schematic external view of FIG. 11, the state in which the upper lid is removed is shown in order to understand the internal structure.
As shown in FIG. 11, the dust removal separator 220 of this embodiment is a panel-shaped casing whose thickness is smaller than the vertical and horizontal lengths of the panel surface, similarly to the dust removal separator 200 of Example 6 described above. It has 204, and slit-shaped openings 205 (intake ports) for sucking intake 201 are arranged in parallel on one panel surface of casing 204. Further, on the other panel surface facing each other, a slit-shaped opening 206 (exhaust port) for discharging the exhaust 202 is arranged in parallel. In the separator of this embodiment, six pairs of a gas guiding portion and a particle collecting portion in a frame surrounded by a broken line in FIG. 12 are arranged in parallel. The movement of the gas flowing in the flow path of the gas induction unit is indicated by an arrow in FIG.

In this embodiment, the gas induction unit is configured to eject the gas entering from the slit-shaped opening 205 on the intake side forward from the slit 207 whose slit width is narrowed by the gas induction promotion blade 3a and the ejection blade 3b. ing. Further, the gas guiding unit guides the gas diagonally backward immediately after the ejection by the centrifugation promoting blade 5, guides the gas diagonally forward from the tip of the centrifugation promoting blade 5, and guides the gas diagonally backward again. Then, the air is discharged from the slit-shaped opening 206 on the exhaust side. The particle collecting portion has a slit-shaped accommodating portion 221 having a slit width larger than the slit width of the slit 207 having a narrowed slit width and equal to or larger than the slit length, and the accommodating portion 221 is arranged at a position in front of the gas guiding portion. , Is configured to collect particles.

The present invention can be used as a separator for an emergency dust remover in the event of a disaster such as an earthquake or a volcanic eruption. It can also be used as a separator for a device for removing iron powder, oil mist, etc. at a work site.

1,11,100,200,220 Separator for removing dust, etc. 1a, 11a Gas induction part 1b, 11b Dust collection part 1c, 11c Partition part 1d ~ 1f Opening part 2,2a ~ 2k Louver blade 3a Gas induction promotion blade 3b Ejection Blade 4a 1st dust collector 4b 2nd dust collector 4c 3rd dust collector 5,5a Centrifugal separation promotion blade 6a- 6d Arrows 7a, 71a Intake port 7b, 71b Exhaust port 8,8a-8n Gas or Direction of dust progress 9,9a, 9b Dust 10 Dust remover 12a Upper end 12b Lower end 13 Chamber box 14 Cushion member 21, 21a to 21e Rectifying blade 22a to 22e S-shaped blade 23 Partition wall 24a, 24b Inclined plate 25 Dust removal Mouth 30 Wet dust collector 31 Wet dust collector 31 Wet dust collector 32 Antifreeze 33 Tube group type scrubber 34 Gas introduction pipe 40 Gas-liquid separator 50 Blower 60 Carriage 60a, 60b Wheels 70 Piping 81 Discharge electrode 82 Dust collection electrode 90 Dust collection unit 201 Intake 202 Exhaust 204 Casing 205 Slit-shaped opening (intake side)
206 Slit-shaped opening (exhaust side)
207 Slit with narrow slit width 212 Partition plate 211,211a, 211b, 221 Slit-shaped accommodating part

Claims (21)

1. It has a casing provided with an intake port and an exhaust port, and the gas outside the casing is sucked from the intake port by a suction means connected to the exhaust port, and particles in the sucked gas are removed or reduced in the casing. A separator that discharges from the exhaust port
   In the casing,
   A gas induction unit that guides the gas that has flowed in from the intake port and separates the particles in the gas.
   Particle recovery unit, which recovers particles separated from gas,
   Consists of
   The gas induction unit is
   A gas induction promotion blade that promotes the induction of gas into a narrowly formed space,
   The gas and particles are ejected forward in the guiding direction, and the flow direction of the ejected gas is guided diagonally from the front to the rear in the guiding direction immediately after the ejection through the gap provided in front of the blade tip, and the ejected particles are ejected into the gas. Ejection blade to centrifuge from inside,
   With
   The particle recovery unit
   A separator for removing dust and the like, which is provided in front of the ejection blade and collects particles that are centrifuged when guided obliquely backward.
2. The gas induction unit is
   It is equipped with a first gas induction unit and a second gas induction unit.
   The first gas induction part is
   It has a plurality of louver blades arranged at intervals so as to descend from the intake port side to the exhaust port side, and the louver blades incline the blade surface so as to suppress the airflow from the intake port side to the exhaust port side downward. The corners are provided, and the arrangement of the louver blades forms a narrow space for gas to pass from the intake port side to the exhaust port side.
   The second gas induction part is
   The gas induction promoting blade that promotes the induction of gas into a narrowly formed space,
   The space is formed, gas and particles are ejected forward from the space, and the flow direction of the ejected gas is guided upward immediately after ejection through the gap provided in front of the blade tip, and the ejected particles are ejected. With the ejection blade that centrifuges from the gas
   An inclination angle of the blade surface is provided so as to suppress the airflow from the intake port side to the exhaust port side downward, and the flow direction of the gas ejected by the ejection blade is upward immediately after ejection through the gap with the tip of the ejection blade. Or the centrifugal separation promoting blade, which guides diagonally backward and upward to promote the above-mentioned centrifugation.
   With
   The particle recovery unit
   The separator for removing dust or the like according to claim 1, which is provided below the casing and collects particles that inertially collide with the blade surface and settle due to gravity or that are centrifuged.
3. The second gas inducer further comprises a centrifugation promoting blade.
   The centrifugal separation promoting blade is provided with an inclination angle of the blade surface so as to suppress the airflow from the intake port side to the exhaust port side downward, and the flow direction of the gas ejected by the ejection blade is defined as the tip of the ejection blade. The claim is characterized in that, immediately after ejection, the particles are guided upward or diagonally upward rearward through a gap with the centrifugal separation promoting blade to promote the above-mentioned centrifugation, and particles that are obliquely forward and upward are inertially collided with the blade surface. 2. The separator for removing dust and the like according to 2.
4. The particle recovery unit
   A first particle recovery unit that causes particles contained in the gas to settle and recover by gravity due to an inertial collision caused by contact of the gas with the louver blade of the first gas induction unit.
   The separator for removing dust or the like according to claim 2 or 3, further comprising a second particle recovery unit that recovers particles centrifuged by a second gas induction unit or particles that have inertially collided with each other.
5. Immediately after flowing in from the intake port, the gas induction unit is further composed of a third gas induction unit including at least one rectifying blade that causes particles suspended in the gas to inertially collide with the rectifying blade surface and settle due to its own weight. The separator for removing dust or the like according to any one of claims 2 to 4, wherein the separator is provided.
6. The separator for removing dust or the like according to claim 5, wherein a third particle recovery unit for recovering particles that have collided with inertia is further provided in the third gas induction unit.
7. The separator for removing dust or the like according to any one of claims 2 to 6, wherein at least one of the louver blades has an upper end curved or bent toward the intake port side and extended.
8. The separator for removing dust or the like according to any one of claims 2 to 7, wherein at least one of the louver blades has a lower end curved or bent toward the exhaust port side and extended.
9. The dust or the like according to any one of claims 2 to 8, wherein the second particle collecting unit is provided with a chamber for collecting the centrifuged particles by reducing the flow velocity of the inflowing gas. Separator for removal.
10. The separator for removing dust or the like according to claim 9, wherein the inner wall of the chamber is provided with a cushion member for alleviating the rebound of the particles due to the collision of the gas.
11. The separator for removing dust or the like according to any one of claims 2 to 10, wherein the second particle collecting unit is provided with an electrostatic precipitator.
12. The separator for removing dust or the like according to any one of claims 1 to 11, wherein the casing has a polygonal prism shape or a cylindrical shape.
13. The flow direction of the gas ejected by the ejection blade is guided diagonally backward immediately after ejection through the gap with the ejection blade to promote the above-mentioned centrifugation and cause the particles obliquely forward to inertially collide with the blade surface. The separator for removing dust or the like according to claim 1, further comprising a centrifugal separation promoting blade.
14. The gas induction unit takes in air from a slit-shaped opening on the intake side, ejects gas forward from a slit whose slit width is narrowed by the gas induction promotion blade and the ejection blade, and immediately after the ejection by the centrifugation promotion blade. The gas is guided diagonally backward, and the gas is guided forward again from the tip of the centrifugation promoting blade and discharged from the slit-shaped opening on the exhaust side.
    The particle collecting portion has a slit-shaped accommodating portion equal to or more than the narrowed slit width and equal to or more than the slit length, and the accommodating portion is arranged at a position forward and adjacent to the gas guiding portion. The particles to be centrifuged when the accommodating portion in the front position guides the gas diagonally backward are collected, and the particles are centrifuged when the accommodating portion in the adjacent position guides the gas forward again from the tip of the centrifugation promoting blade. The separator for removing dust or the like according to claim 13, wherein the particles are collected.
15. The gas induction unit takes in air from a slit-shaped opening on the intake side, ejects gas forward from a slit whose slit width is narrowed by the gas induction promotion blade and the ejection blade, and immediately after the ejection by the centrifugation promotion blade. The gas is guided diagonally backward, the gas is guided diagonally forward from the tip of the centrifugation promotion blade, the gas is guided diagonally backward again, and the gas is discharged from the slit-shaped opening on the exhaust side.
    The particle collecting portion has a slit-shaped accommodating portion equal to or larger than the narrowed slit width and equal to or larger than the slit length, and the accommodating portion is arranged at a position in front of the gas guiding portion to collect particles. The separator for removing dust or the like according to claim 13, wherein the separator is used.
16. The gas induction unit and the particle recovery unit are plane-symmetrical with respect to their respective central surfaces in the length direction of the slit, and are arranged so that their respective central surfaces are flush with each other. The separator for removing dust or the like according to claim 14 or 15, wherein the ejection blade and the centrifugal separation promoting blade are arranged at positions symmetrical with respect to the central surface.
17. The separator for removing dust or the like according to claim 16, wherein a partition surface serving as the central surface is formed.
18. According to any one of claims 14 to 17, the inner wall of the accommodating portion of the particle collecting portion is subjected to a dust scattering prevention process by forming irregularities, applying a dust adsorbent, or attaching a dust adsorbing sheet. The above-mentioned separator for removing dust and the like.
19. The separator for removing dust or the like according to any one of claims 14 to 18, wherein a plurality of pairs of the gas induction unit and the particle recovery unit are arranged in parallel.
20. The casing has two panel surfaces facing each other, and has an intake port on one panel surface and an exhaust port on the other panel surface, and is characterized in that the thickness is smaller than the vertical or horizontal length of the panel surface. The separator for removing dust or the like according to claim 19.
21. The separator for removing dust or the like according to any one of claims 1 to 20, wherein the gas induction unit further includes a mist spraying means.

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