JP4343661B2 - Oil mist removal device - Google Patents

Description

The present invention relates to an oil mist removing device.

As this kind of oil mist removing device, the prior literature has been proposed as the latest structure, and a part of it has been put into practical use. The outline will be described below.

Document (1) is a dust removing and deodorizing apparatus disclosed in Japanese Patent Application Laid-Open No. 11-285611. The contents of the gas-phase fluid include a dust-removing unit that removes fine dust provided in the gas-phase fluid processing path, and contact with the gas-phase fluid provided in the dust-removing unit and / or a change in the flow direction. The first dust removing unit having a louver unit for removing oil, the second dust removing unit having a filter device for adsorbing and removing fine dust in the gas phase fluid, and the gas phase fluid discharged from the dust removing unit Or it is the structure which consists of a deodorizing part which performs a deodorizing process, and removes dust, an oil mist, or a welding fume etc. from the gaseous phase fluid containing an oil mist, a welding fume, etc., and the deodorizing process of a gaseous phase fluid is intended. Document (2) is an oil mist removing apparatus disclosed in JP-A-10-216437. Its contents are an inlet filter that removes coarse debris in the oil mist that can be moved horizontally along the guide rail of the air suction chamber, and a guide to the front chamber of the lower chamber separately secured below the air suction chamber. A filter for primary filtration that can move horizontally along the rail is arranged, and a front side cover is provided on the side surface of the front casing that defines the air suction chamber and / or the lower chamber, simplifying filter replacement work, Intended to improve oil mist capture performance. Document (3) is a dust removal device of utility model registration No. 3006922 and a louver used for the dust removal device. The contents are that a suction fan is provided in the processing path provided in the casing, an adsorption filter is provided at the outer peripheral position on the lower side in the direction of the gas to be processed than the suction fan, and the upper side in the direction of the gas to be processed in relation to the suction fan. A louver unit consisting of a filter is provided at the position, and the guide surface of the louver unit is configured to collect a portion of the gas to be processed and collect dust, and avoids an increase in power load and vibration due to fan rotation spots. It is possible to provide a dust removing device that avoids the occurrence or has an excellent dust removing performance, and a louver used in the dust removing device.

JP-A-11-285611 JP-A-10-216437 Utility Model Registration No. 3006922

Documents (1) and (2) described above have a structure in which the first dust removing portion is provided in the first casing and the second dust removing portion is provided in the second casing, and the first and second casings are continuously provided. . Therefore, the smooth flow of the oil mist to the first and second casings is not guaranteed, and the situation such as the occurrence of gas phase fluid blindness / collision is likely to occur, and the efficient dust removal and deodorization cannot be achieved. There is a problem. Further, in the literatures (1) and (2), when the first and second casings are repaired and cleaned, the first and second casings need to be opened and assembled separately, which is troublesome. In view of such a configuration and an increase in replacement of the filter, there are problems such as being considered as a device that is not practical.

Further, since the document (3) has a configuration in which the second dust removing portion is arranged in a ring around the fan, replacement, repair, maintenance and the like of the second dust removing portion (filter, punching plate) are troublesome. Problems such as the fact that a smooth flow of oil mist (gas phase) is not ensured are conceivable. Further, the first dust removing portion is provided opposite to the suction port, and problems such as pressure loss can be considered.

And since literature (1)-(3) mentioned above employ | adopts the structure which a 1st dust removal part opposes with respect to the flow of the gaseous phase of the suction inlet vicinity, a pressure loss generate | occur | produces and the oil mist is smooth. There are improvements such as the fact that the flow is not guaranteed, or that this pressure loss avoidance requires a higher speed and a larger fan, and further obstructs the expansion of the mist particle size.

Also, with a normal oil mist device, using a punching plate made of a single punching shape or mesh shape to make oil droplets such as oil mist, foreign matter such as dust, oil droplets, bypass effect, Alternatively, since the capturing effect is not necessarily sufficient, the present invention intends to solve this problem and provides a punching plate that can achieve finer graining and more efficient oil mist capturing.

The first aspect of the present invention is a configuration in which the first to third processing parts are installed in the casing through a gap as appropriate, and the casing is opened and closed with a cover. Cleaning, replacement, etc. of the first to third processing parts is facilitated. , Speed up or secure installation to simplify maintenance, avoid pressure loss of air containing oil mist at the suction port, and ensure oil in the air containing this oil mist It is intended to make droplets and to supply the first and second processing units smoothly (to ensure the flow of oil mist and various airs described later). By satisfying these requirements, it is intended to increase the speed and size of the fan and to increase the mist particle size. The present invention is a configuration in which the first to third processing units are installed substantially linearly in a casing having substantially the same cross-sectional area, and ensures a swirl of air (wind) and a diffusive flow in the casing, or It is intended to improve the efficiency of oil droplet generation and dust capture using at least one punching plate.

The first aspect of the present invention provides a casing having a suction port and a discharge port, a first processing portion, a second processing portion disposed behind the first processing portion, and an annular shape disposed behind the second processing portion. An oil mist removing apparatus equipped with a third processing unit, a suction fan provided in the annular third processing unit, and a motor for the suction fan,
The first processing unit is supported by a link support suspended from the lower surface of the casing, and has a base end between a link provided at an interval on the inner wall surface of the casing and a groove of the link. And an umbrella-shaped collision plate provided behind the suction port ,
Further, the second processing section is composed of at least one punching plate and several first porous members arranged behind the punching plate,
Furthermore, the third processing section is composed of at least one annular punching plate and an annular second porous member attached to the punching plate,
Air containing oil mist is sucked into the casing through the suction port and then processed through the first to third processing units, and the separated oil is collected in the recovery unit and clarified air. Is an oil mist removing device configured to exhaust the air from the discharge port to the outside of the device.

  The invention of claim 2 achieves the object of claim 1 or improves the impingement plate to ensure rotation of the oil mist and diffusive flow in the casing, and to trap dust. It is intended to improve the efficiency of the system.

According to a second aspect of the present invention , a first passage is formed between the bottom of the umbrella-shaped collision plate according to the first aspect and the link, and a plurality of second passages are provided in each stepped wall portion of the collision plate. The oil mist removing device.

  The invention of claim 3 achieves the object of claim 1 or improves the punching plate to ensure the rotation of the oil mist and the diffusive flow in the casing, and to trap dust. It is intended to improve the efficiency of the system.

According to a third aspect of the present invention, the collision annular body of the third processing unit according to the first aspect is configured by an inner second punching plate having an uneven, chevron-shaped collision wall piece, and an outer third punching plate. This is an oil mist removing device having a structure in which a large number of holes for mist passages are opened in the collision ring.

  The invention of claim 4 is intended to achieve the object of claim 3 or to provide a punching plate optimal for achieving the object of claim 3.

When a hole is provided in the first front / first rear punching plate of the second processing section according to claim 1, the location of the hole in the first front punching plate and the first rear punching plate are provided. This is an oil mist removing device that does not overlap the holes .

  The invention of claim 5 is intended to achieve the object of claim 3 or to provide a punching plate optimal for achieving the object of claim 3.

When a hole is provided in the second punching plate on the inner side of the third processing unit described in claim 1 and the third punching plate on the outer side, the position of the hole in the second punching plate on the inner side, The oil mist removing device is configured such that the hole portion of the third punching plate on the outside does not overlap.

The invention according to claim 1 is arranged in a casing having a suction port and a discharge port, a first processing unit, a second processing unit arranged behind the first processing unit, and a rear side of the second processing unit. An oil mist removing apparatus equipped with an annular third processing unit, a suction fan provided in the annular third processing unit, and a motor for the suction fan,
The first processing unit is supported by a link support suspended from the lower surface of the casing, and has a base end between a link provided at an interval on the inner wall surface of the casing and a groove of the link. And an umbrella-shaped collision plate provided behind the suction port ,
Further, the second processing section is composed of at least one punching plate and several first porous members arranged behind the punching plate,
Furthermore, the third processing section is composed of at least one annular punching plate and an annular second porous member attached to the punching plate,
Air containing oil mist is sucked into the casing through the suction port, then processed through the first to third processing parts, and the separated oil is stored in the recovery part and clarified air. Is an oil mist removing device configured to exhaust the air from the discharge port to the outside of the device.

  Accordingly, the first aspect of the present invention is a configuration in which the first to third processing units are installed in the casing through a gap as appropriate, and the casing is opened and closed with a cover. Cleaning, replacement, etc. of the first to third processing units is facilitated. , Speeding up or ensuring installation, simplifying maintenance, etc., avoiding air pressure loss including oil mist at the suction port, and reliable oil in the air containing this oil mist It has characteristics such as that it can be formed into droplets and that it can be supplied smoothly to the first and second processing sections (to ensure the flow of oil mist or various air described later). By satisfying these requirements, there are actual benefits such as an increase in the speed and size of the fan, and an increase in the mist particle size. Moreover, this invention is the structure which installs a 1st-3rd process part substantially linearly in the casing of substantially the same cross-sectional area, and can ensure the diffusive flow in the swirling and casing of air (wind), or There is a feature that oil drop generation and dust capture efficiency can be improved by using at least one punching plate.

According to a second aspect of the present invention, a first passage is formed between the bottom portion of the umbrella-shaped collision plate described in the first aspect and the link, and a plurality of second passages are provided in each stepped wall portion of the collision plate. It is an oil mist removing device configured to be provided.

  Accordingly, the second aspect can achieve the object of the first aspect or can improve the collision plate to ensure the swirling of the oil mist and the diffusive flow in the casing, and the efficiency of capturing dust. There is a feature that can be achieved.

According to a third aspect of the present invention, the collision annular body of the third processing section according to the first aspect is constituted by an inner second punching plate having an uneven surface and a mountain-shaped collision wall piece, and an outer third punching plate, The oil mist removing device has a structure in which a large number of holes for mist passages are opened in the collision annular body.

  Accordingly, the third aspect of the present invention achieves the object of the first aspect or improves the punching plate so as to ensure the swirling of the oil mist and the diffusive flow in the casing, and to collect dust. There are features such as efficiency improvement.

According to a fourth aspect of the present invention, when a hole is provided in the first front / first rear punching plate of the second processing section according to the first aspect, the location of the hole in the first front punching plate and the first rear The oil mist removing device is configured such that the holes in the punching plate do not overlap.

  Therefore, claim 4 is characterized in that the object of claim 3 can be achieved, or an optimum punching plate can be provided to achieve the object of claim 3.

According to a fifth aspect of the present invention, when a hole is provided in the second punching plate inside the third processing portion and the third punching plate outside the third processing portion according to the first aspect, the location of the hole in the inner second punching plate And an oil mist removing device in which the holes of the third punching plate on the outside do not overlap.

  Therefore, claim 5 is characterized in that the object of claim 3 can be achieved, or that a punching plate optimal for achieving the object of claim 3 can be provided.

  Hereinafter, an example of the treatment of oil mist, which is an embodiment of the present invention, will be described.

  First, the motor (an example of the suction means) provided in the casing is driven to rotate the suction fan. Utilizing this rotation, air containing oil mist that has been used or treated (referred to as oil mist air) is taken (introduced) into the casing through the suction port “→ 1”. The oil mist air introduced into the casing strikes a collision plate provided in the vicinity of the suction port, and most of it is diffused and guided along the surface of the collision plate “→ 2”.

  And the oil mist air induced | guided | derived to this collision plate passes through the mist hole formed between the bottom part of this collision plate and a link (it is tentatively called a mist hole) for the mist passage of a collision plate. After that, a flow that is substantially converged and reaches the passage “→ 4” in the direction of the center of the link, and a flow that reaches the inner wall direction “→ 3” of the link that flows through the space formed between the collision plate and the link. Branch off. At this time, when the link has a semi-dough donut shape, the link flows following the semi-curved curved surface, and oil mist air diffusion and / or aggregation (aggregation separation) occurs due to the collision between “→ 3” and “→ 4”. It is beneficial. This first-processed oil mist air does not accumulate in the central portion, and the air flow shown in FIG. 5 is obtained, and the substantially uniform load on the first punching plate, efficient diffusion, and reduction of the intake air amount Etc. The oil in the diffused oil mist air is collected in the reservoir chamber from the lower surface of the casing as oil particle size (oil droplets “indicated in the figure”) before reaching the second processing section. . In this impingement plate, sludges and processing debris with heavy specific gravity are separated almost certainly and gather on the lower surface of the casing.

  The air containing a small amount of oil mist reaching the second processing section (referred to as low oil mist air) first contacts (stops) the first punching plate. The first punching plate can be formed in a normal form, but in this example, a burring is formed on the first punching plate. By forming this burring, the detour effect in the vicinity of the hole of the oil is utilized, and the oil is reduced to an oil droplet and the residence time is expanded, thereby promoting the fall of the oil, increasing the capture, or separating the dust. . Further, in the configuration in which two first (front and rear) punching plates are provided, when the configuration in which the positions of the holes provided in the second first punching plate are provided alternately (by changing the phase) is adopted. It has features such as oil droplet formation (separation effect from air), avoidance of the flow of oil droplets into the hole, prevention of scattering, etc., and expansion of residence time. Then, the two first punching plates are filtered by a first porous member such as one or several filters at a slight interval. That is, by passing through the first porous member, foreign substances such as dust and cutting waste contained in the low oil mist air can be reliably and efficiently captured by the first porous member, or oil droplets are formed. It is thought that it is useful for the promotion. And it can contribute to reduction of an air resistance (the structure of the 2nd porous member mentioned later etc. apply to this 1st porous member).

  This separated oil reaches a first reservoir provided below the casing. The primary-treated oil mist that has passed through the first porous member passes through a protruding passage “→ 5” at the center of the partition plate that constitutes the second processing section, and enters the third processing section. It reaches.

  Then, air containing a small amount of primary-processed oil mist that has passed through the second processing section (referred to as a trace amount of oil mist air) is a conventional second and third punching plate through suction of the suction fan and diffusion. This leads to the third processing unit having an improved structure for the (second and third collision links). And this minute amount of oil mist air achieves diffusion and / or oil droplet formation by the 2/3 punching plate constituting the third processing section, and collision and / or collision of oil mist air from the impeller of the suction fan Comprehensive harmony with avoidance is considered a more efficient method. However, in the conventional example, the angle of the wind flow passing through the holes provided in the second and third punching plates is an obtuse angle with respect to the angle of the wind flow exiting from the impeller of the suction fan. The present invention is to improve this. In this example, the angle of the direction of the holes of the second and third punching plates is set so that the wind passing through the holes can be adjusted with respect to the angle of the wind flow from the impeller. The flow angle becomes sharp and the probability of passing through the hole without colliding can be reduced. In addition, the residence time can be expanded, and the oil fall can be promoted, the capture can be expanded, or the dust can be separated. And in this example, if simplified, if the direction of the hole is angled (burring may be provided in the hole), at the same time, other inclined surfaces (surfaces formed by bending, unevenness, etc.) A non-impact surface is formed, and a fine oil mist air is collided with the impact surface to achieve efficient separation and formation of oil mist. Further, in the configuration in which the second and third punching plates are provided, when the configuration in which the positions of the holes provided in the first and second punching plates are alternately (changed in phase) is adopted, oil droplets (air and Separation effect), avoidance of the flow of oil droplets into the hole, prevention of scattering, and the like, and an increase in residence time.

  The treated air that has passed through the holes of the second and third punching plates is filtered by a second porous member such as one or several filters. As shown in FIG. 7, the second second punching plate rectifies the flow of air (wind), and the air flows from the inner peripheral surface of the second punching plate (third punching plate) and / or the third. It is effective for stopping the perforation wall surface of the punching plate (second punching plate) and allowing only air to pass therethrough (blocking the passage of oil droplets) or promoting air passage. In addition, there are practical advantages such as being effective in preventing clogging and contamination of the second porous member provided in the peripheral portion, and capturing fine foreign matters such as fine dust and processing waste.

  The air clarified through the above-mentioned means passes through the third processing section and the passage “→ 6” on the inner wall surface of the casing to reach the fourth processing section. It is filtered and deodorized by one or several punching plates and a second porous member such as a filter impregnated with activated carbon, zeolite, a chemical agent, a chemical, etc. provided in the fourth processing section (“→ 7 "). The filtered final mist (clarified mist) is diffused into the atmosphere through the outlet (indicated by “→ 8”). On the other hand, the oil reaches a second reservoir provided below the casing. Further, a configuration is adopted in which approximately 1/3 to 1/4 is shielded from the lower side of the second punching plate, and the diffusion of the suction fan is supplied to the second porous member from other portions of the second punching plate. Thus, it is possible to achieve wide-area diffusion, avoid clogging that tends to occur on the lower side of the second porous member, avoid oil dripping, or improve durability.

  In the present invention, by opening the cover, the second processing unit, the third processing unit, the replacement of the suction fan, the function change, the first processing unit, the second processing unit, and the third processing unit. In addition, there are features such as easy and simple cleaning of the suction fan and the like, and the fact that these dirt states can be confirmed in detail. In addition, there is a feature that it is possible to install at one touch by pressing at least the second processing unit with a pressing member provided on the cover, and that the position can be stabilized.

  Hereinafter, an example of the embodiment of the present invention will be described.

  Reference numeral 1 denotes a casing having a suction port 2 and a discharge port 3, and the casing 1 includes a cover 4. By opening the cover 4, approximately half of the casing 1 can be opened. In addition, the first processing unit, the second processing unit, the third processing unit, and the suction fan, which will be described later, can be easily cleaned, simplified, replaced, or checked for dirt. Note that the cover 4 is provided with a pressing member 400 to hold at least the second processing section. The arrows in the figure indicate the flow of wind (oil mist, low oil mist air, etc.).

Reference numeral 5 denotes a first processing section provided behind the cylindrical suction port 2, and the first processing section 5 is provided by being supported by a link support 60 that is suspended from the lower surface 1 a of the casing 1. A link 6 provided on the inner wall surface of the casing 1 with a gap 1b, and an umbrella-shaped collision plate 7 having a base end 7a between the link 6 and a groove 6a. A branch passage 8 is formed in a substantially annular shape between the link 6 and the base end 7a. The annular branch passage 8 branches oil mist guided by the collision plate 7. In the figure, reference numeral 9 denotes a cylindrical passage provided substantially at the center of the link 6. In addition, the hole 100 for oil fall is opened in the lower surface 1a. In this example, as shown in the figure, the link 6 has a high outside height and a low inside height to control the amount of branching to the outer periphery and branching to the passage 9. This control will be used to expand the flow to the center. The collision plate 7 in this example has a substantially bowl shape and includes a cap portion 70 that functions as an oil mist guide surface and a stepped wall portion 71. A number of mist holes 72 are formed in the stepped wall portion 71 at appropriate intervals. Although not shown, the mist hole 72 may have a slit shape, and burring may be applied to the mist hole 72. By colliding with fine oil mist air, efficient separation and oil mist oil droplets are achieved. In the figure, 73 indicates a guide piece, and 74 indicates a bottom portion. The guide piece 73 is intended for efficient guidance and / or convergence of the mist, and the bottom 74 forms a flow path with the link 6. And by forming a ventilation path part on substantially the entire peripheral surface (from the center to the outer peripheral surface) of the collision plate 7, a wide wind flow of the oil mist air is secured, and the intake air amount is reduced and the speed is reduced. In addition, it is possible to achieve a uniform load on the second processing unit (described later), enlargement of oil droplets, and efficiency of separation of sludges having heavy oil and specific gravity.

  Reference numeral 10 denotes a second processing unit. The second processing unit 10 includes a first front punching plate 11 (first rear punching plate 12) having a large number of holes 1100 (1200), and a first nonwoven fabric / plastic / composite filter. The partition plate 14 includes a first porous member 13 such as a first ceramic filter and a cylindrical passage 1400. The first front punching plate 11 and the first rear punching plate 12 may be either one or a plurality of sheets. Moreover, the hole 1100 (1200) opened in this 1st front punching board 11 (1st back punching board 12) employ | adopts a normal form. However, to give a further example, the hole 1100 (1200) is provided with a burring 1100a (1200a) at the periphery thereof to promote the detouring of low oil mist air, and the oil mist particle size (oil dropletization, or (Aggregation) and expansion of residence time to promote oil drop or dust separation effect, or the opening position of the hole 1100 of the first front punching plate 11 and the hole 1200 of the first rear punching plate 12 , A structure in which the size of the hole 1100 (1200) is changed (the hole diameter is made larger or smaller), the shape of the hole 1100 of the first front punching plate 11, and the hole of the first rear punching plate 12 A structure in which the shape of 1200 is different is also possible. In addition, since various aspects can be considered also in the 1st porous member 13, an example is demonstrated. That is, the shape includes a single sheet shape, a multiple sheet shape, and the thickness dimension includes the thin shape. Further, passages (A) to (C) are formed between the first front punching plate 11, the first rear punching plate 12, the first porous member 13, and the partition plate 14. The width, capacity, or the like of the passages (A) to (C) is changed in consideration of the shape of the apparatus, the type of the processed material, and the like to ensure the most efficient dimensions.

  Reference numeral 20 denotes a third processing unit. This third processing unit 20 has one or several impact surface areas having a large number of holes 2100 (2100-1), such as folding, unevenness, and chevron wall pieces. 2101 (2101-1), the second inner punching plate 21, the outer third punching plate 21-1, the second nonwoven fabric / plastic / composite material filter, the second ceramic filter and the like. And a porous member 22. And the hole 2100 (2100-1) opened alternately (desirably) of the collision wall pieces 2101 (2101-1) of the second punching plate 21 (third punching plate 21-1) adopts a normal form. . However, as another example, the hole 2100 (2100-1) is provided with a burring (not shown) in the periphery thereof to promote detouring of a small amount of oil mist air, and the oil mist particle size and residence time. A structure that promotes the fall of oil or the effect of separating dust or the same structure as the hole 1100 (1200) provided in the first front punching plate 11 (first rear punching plate 12) can be adopted. . And the hole 2100 (2100-1) opened in this 2nd punching board 21 (3rd punching board 21-1) is the hole 1100 (opened in the said 1st front punching board 11 (1st back punching board 12)). 1200)), a fine structure is adopted. Thereby, oil droplets and / or foreign matters are roughly collected and / or captured through the holes 1100 (1200) opened in the first front punching plate 11 (first rear punching plate 12) of the second processing unit 10, Next, oil droplets and / or foreign matters are finally collected and / or finally through holes 2100 (2100-1) opened in the second punching plate 21 (third punching plate 21-1) of the third processing unit 20. Ideally, the structure should be captured. In addition, the hole 2100 (2100-1) opened in the collision wall piece 2101 (2101-1) has a structure in which the phase and / or the opening direction is shifted to ensure a residence time, and this hole 2100 (2100-1). Is intended to avoid going straight through. That is, by increasing the mist particle size and colliding fine oil mist air on the collision surface, efficient separation and efficient oil droplet formation of the oil mist are achieved.

  The second filter constituting the second porous member 22 can be variously handled, such as a configuration in which one or several filters are used, a configuration in which the hole diameter is changed, and the shape of the apparatus and the type of processed material are taken into consideration. Change and adopt the most efficient configuration. Further, passages (d) and (e) are formed between the second punching plate 21, the second porous member 22, and the suction fan 30. The width or capacity of the passages (d) and (e) is the same as the above example. In addition, changing the phase of the holes 2100 and 2100-1 of the second punching plate 21 and the third punching plate 21-1 conforms to the example of the first front punching plate 11 and the first rear punching plate 12 described above. The annular second punching plate 21 and the third punching plate 21-1 are attached to the partition plate 14 and arranged in the casing 1, and the annular third punching plate 21-1, the casing 1, In the meantime, a space for inserting the second porous member 22 and a passage (e) are formed. In addition, adopting a structure to be attached to the partition plate 14 facilitates easy fixing of the annular second punching plate 21 and the third punching plate 21-1, and maintaining and removing the space, etc. between the two. It is useful for conversion.

  A suction fan 30 is rotated by a motor 31.

  Reference numeral 40 denotes a fourth processing unit, which includes a third filter impregnated with one or several activated carbons, zeolites, chemical agents, chemicals, and the like. Provided. Filter and deodorize treated oil mist. The configuration of the third filter basically conforms to the above example. Further, (f) in the figure indicates a passage, and the motor 31 is provided in the passage (f).

  In the figure, reference numeral 50 denotes a first reservoir chamber (collector) for collecting oil, and 51 denotes the second reservoir chamber (collector). The first reservoir chamber 50 and the second reservoir chamber 51 are respectively provided with outlets 50a and 51a for connecting piping (not shown) for discharge (circulation).

Whole sectional view showing an example of the present invention Front view of FIG. Rear view of FIG. Enlarged front view showing collision plate and link Expanded cross-sectional view showing the collision plate and link Enlarged schematic diagram of the main part explaining the impact of air on the second and third punching plates

DESCRIPTION OF SYMBOLS 1 Casing 1a Lower surface 1b Space | interval 100 Hole 2 Suction port 3 Discharge port 4 Cover 400 Holding member 5 1st process part 6 Link 6a Groove 60 Link support body 7 Collision board 7a Base end 70 Cap part 71 Stepped wall part 72 Mist hole 73 Guide piece 74 Bottom 8 Branch passage 9 Passage 10 Second treatment portion 11 First front punching plate 1100 Hole 1100a Burring 12 First rear punching plate 1200 Hole 1200a Burring 13 First porous member 14 Partition plate 1400 Passage 20 Third treatment portion 21 Second punching plate 2100 Hole 21-1 Third punching plate 2100-1 Hole 2101 Collision wall piece 2101-1 Collision wall piece 22 Second porous member 30 Suction fan 31 Motor 40 Fourth processing section 50 First reservoir 50a Exit 51 Second reservoir 51a Exit (I) to (F) Passage

Claims (5)

In a casing having a suction port and a discharge port, a first processing unit, a second processing unit disposed behind the first processing unit, and an annular third processing unit disposed behind the second processing unit, An oil mist removing device equipped with a suction fan provided in the annular third processing section and a motor for the suction fan,
The first processing unit is supported by a link support suspended from the lower surface of the casing, and has a base end between a link provided at an interval on the inner wall surface of the casing and a groove of the link. And an umbrella-shaped collision plate provided behind the suction port ,
Further, the second processing section is composed of at least one punching plate and several first porous members arranged behind the punching plate,
Furthermore, the third processing section is composed of at least one annular punching plate and an annular second porous member attached to the punching plate,
Air containing oil mist is sucked into the casing through the suction port, then processed through the first to third processing parts, and the separated oil is stored in the recovery part and clarified air. Oil mist removing device configured to exhaust the air from the outlet to the outside of the device. An oil mist removal system in which a first passage is formed between the bottom of the umbrella-shaped collision plate according to claim 1 and the link, and a plurality of second passages are provided in each stepped wall portion of the collision plate. apparatus. The collision annular body of the third processing section according to claim 1 is configured by an inner second punching plate having an uneven and chevron-shaped collision wall piece, and an outer third punching plate. An oil mist removing device that has a large number of passage holes. When a hole is provided in the first front / first rear punching plate of the second processing section according to claim 1, the hole position of the first front punching plate and the hole position of the first rear punching plate are The oil mist removing device has a structure that does not overlap. When the hole is provided in the second punching plate inside the third processing section and the third punching plate outside the third processing portion according to claim 1, the location of the hole in the second punching plate inside and the third punching outside An oil mist removing device in which the holes on the plate do not overlap.

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