Oil mist collection device

Abstract

To provide an oil mist collection device capable of recovering CO2 while collecting oil mist in the atmosphere by moving the device corresponding to the necessity of a workshop and the like.SOLUTION: An oil mist collection device comprises a body case, a pressure type fan, an oil mist collection part, a CO2 recovery part and wheels for moving. The oil mist collection part and the CO2 recovery part are accommodated in the body case. The oil mist collection part is filled with an oil mist collection material as a filling material. The CO2 recovery part is filled with a CO2 adsorbent as the filling material. The oil mist collection part and the CO2 recovery part have structures to sandwich the filling material from both of an intake side and an exhaust side with a filter medium. Air flows by a means to be able to pass the oil mist collection part and the CO2 recovery part in this order.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to an oil mist collection device, and more particularly to a technology of an oil mist collection device capable of recovering CO2.

Background Art

[0002] Conventionally, in a workplace where oil mist is generated, etc., in order to collect the oil mist, it is common to install and fix a collection device in the workplace. When there are multiple workplaces, even if the work where oil mist is generated is not performed every time, it is necessary to install it for each workplace. By the way, recently, the necessity of reducing CO2 in the atmosphere has been emphasized, and the interest in devices for recovering CO2 has also increased. Therefore, a device that can collect oil mist and recover CO2 in the atmosphere has been demanded according to the necessity in workplaces, etc.

[0003] In response to such problems, various technologies have been proposed conventionally. For example, a ventilation device (see Patent Document 1) has been proposed and has become a known technology. More specifically, a suction filter and a smoke collecting guide are arranged in a box-shaped hood, the lower peripheral edge of the smoke collecting guide is brought close to the lower opening end of the hood to form an annular gap between the two, and an induced air flow surrounding the contaminated air rising from the range cooker is discharged from the annular gap at a very low speed. It is arranged on the contaminated air discharge side of the suction filter, and includes a decomposition filter coated with titanium oxide and a light source that irradiates the decomposition filter to cause a photocatalytic reaction by titanium oxide. However, it is not described that the device can be moved as needed in a workplace, etc., and the above problems have not been solved.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

[0005] In view of the above problems, an object of the present invention is to provide an oil mist collection device that can be moved according to the needs of a workplace or the like, and that can capture oil mist in the atmosphere while recovering CO2. [Means for solving the problem]

[0006] In order to solve the above problems, the present invention provides an oil mist collection device comprising a main body case, a positive pressure type fan, an oil mist collection unit, a CO2 capture unit, and wheels for transportation, the oil mist collection unit and the CO2 capture unit being housed in the main body case, the oil mist collection unit being filled with oil mist capture material as a filler, the CO2 capture unit being filled with CO2 adsorbent as a filler, the oil mist collection unit and the CO2 capture unit being structured so that the filler is sandwiched between filter media from both the intake side and the exhaust side, and means is employed so that air can pass through the oil mist collection unit and then the CO2 capture unit.

[0007] The present invention also employs a means in which the oil mist trapping material is any one of polypropylene fiber, cellulose, and cotton, and the CO2 adsorbent is any one of an amine compound, ceramics, zeolite, and activated carbon.

[0008] Furthermore, the present invention employs a means in which the oil mist collection unit and the CO2 recovery unit are each housed in an individual case, which is housed in the main case, and each individual case can be inserted into and removed from the main case.

[0009] Furthermore, in the present invention, the main body case and the individual cases are cylindrical. The individual case is composed of a cylindrical tube portion and an annular lid portion that covers the edge of the end of the tube portion. The lid portion is screwed to both ends of the tube portion, and there is an annular groove in the circumferential direction on the outer peripheral surface of the lid portion. An O-ring is arranged in the groove, and by means of the O-ring, the outer peripheral surface of the lid portion and the inner peripheral surface of the main body case are slidably in close contact.

[0010] Furthermore, in the present invention, a handle is provided on the filter medium on the exhaust side of the oil mist collection portion and the CO2 recovery portion.

[0011] Furthermore, in the present invention, the CO2 recovery portion is composed of layers of adsorbents of multiple materials.

[0012] Furthermore, in the present invention, the CO2 recovery portion is composed of a plurality of individual cases, and each of the individual cases is made of an adsorbent of a different material.

[0013] And also, in the present invention, the individual cases filled with dust-proof material, deodorant material, and fragrance can be used.

Advantages of the Invention

[0014] According to the oil mist collection device of the present invention, according to the needs of a workplace or the like, the device can be moved to collect oil mist in the atmosphere while recovering CO2, so that the working environment can be improved while also improving the global environment.

Brief Description of the Drawings

[0015] [Figure 1] It is an overall perspective view showing an embodiment of the oil mist collection device according to the present invention. [Figure 2] It is a three-view drawing including a cross-sectional view showing an embodiment of the oil mist collection device according to the present invention. [Figure 3] It is a three-view drawing including a cross-sectional view showing another embodiment of the oil mist collection device according to the present invention. [Figure 4]FIG. 4 is an exploded view of another embodiment of the oil mist collecting device according to the present invention. [Figure 5] FIG. 10 is a cross-sectional view showing a modified example of another embodiment of the oil mist collecting device according to the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0016] The oil mist collection device according to the present invention has the greatest feature of being able to capture CO2 from the atmosphere while making it possible to collect oil mist according to the needs of a workplace or the like. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an oil mist collecting device according to the present invention will now be described with reference to the drawings. The overall configuration and the configuration of each part of the oil mist collecting device shown below are not limited to the embodiments described below, but can be modified within the scope of the technical concept of the present invention, i.e., within the scope of the shape, dimensions, structure, etc. that can achieve the same functional effects.

[0017] Example 1 The present invention will be described with reference to FIGS. Fig. 1 shows an overall perspective view of the present invention. Fig. 2 shows three views showing an embodiment of an oil mist collecting device according to the present invention, where (a) is a partial cross-sectional side view, (b) is a front view, and (c) is a back view. The figures show the state with the cover removed. The oil mist collection device 1 is a device that collects CO2 while collecting oil mist. The oil mist trapping device 1 is made up of a fan 10, a main body case 20, an oil mist trapping section 30, a CO2 recovery section 31, and wheels 50 for transportation. The fan 10 is a pressurized type that forcibly sends ambient air into the main body case 20. It is connected to a 100V commercial power supply and is turned on / off with a switch. It is driven by an AC power supply or a DC power supply converted from an AC power supply. The fan 10 is installed at the end of the cylindrical main body case 20 and sends ambient air into the inside of the main body case 20. The fan 10 is a pressure type, so it can collect oil mist and CO2 with strong wind force. In this embodiment, a propeller fan is used as an example, but the present invention is not limited to a propeller fan, and may be a sirocco fan or the like.

[0018] (Main unit case) The main body case 20 constitutes the exterior of the oil mist collecting device 1. It is made up of a main body cylindrical portion 21, an intake side flat plate portion 22, an exhaust side flat plate portion 23, and bolts 24 for fixing the flat plates. The main body cylindrical portion 21 is a portion that houses the oil mist trapping material 33, the CO2 adsorbent A 34, etc. It is cylindrical, and has an intake-side flat plate portion 22 and an exhaust-side flat plate portion 23 disposed at its ends. The intake-side flat plate portion 22 and the exhaust-side flat plate portion 23 are fixed at four points with flat plate fixing bolts 24, sandwiching the main body cylindrical portion 21 between them (FIGS. 1 and 2(a)). The intake side flat plate portion 22 and the exhaust side flat plate portion 23 have holes approximately the same size as the inner diameter of the main body cylindrical portion 21, and the intake side flat plate portion 22 is fixed to the fan 10. The exhaust side flat plate portion 23 is open because it is on the exhaust side. Covers 51 are attached to both ends of the main body case 20. The cover 51 is box-shaped and has multiple slits on the bottom surface of the box. Attaching the cover 51 prevents people nearby from accidentally touching the fan 10 or the open holes. Furthermore, four wheels 50 are arranged on the bottom side of the main body case 20. By arranging the wheels 50, the oil mist collecting device 1 can be moved freely. Therefore, this device can be shared among multiple workplaces, enabling efficient collection of oil mist. Furthermore, when the oil mist collecting device 1 is to be used in one location for a relatively long period of time, the wheels 50 may be removed and the device may be fixed to a work site or the like using the support parts for the wheels 50. By fixing the device in the optimal position, there is no need to check the installation position, which is efficient.

[0019] (Collection and recovery part) The oil mist trapping section 30 is a section that traps oil mist, and the CO2 capture section 31 is a section that adsorbs and ultimately captures CO2. The oil mist collection unit 30 is composed of a punching metal 32 as a filter medium and an oil mist collection material 33, and the CO2 recovery unit 31 is composed of a punching metal 32 as a filter medium and a CO2 adsorbent A34. The filter medium is not limited to punching metal, and any material through which air can pass and the packing does not flow out may be used. For example, a metal mesh or a screen composed of a plurality of slits may also be used. Both the oil mist collection unit 30 and the CO2 recovery unit 31 have a structure in which the packing is sandwiched between the punching metals on both the intake side and the exhaust side. The oil mist collection unit 30 is arranged on the fan 10 side, and then the CO2 recovery unit 31 is arranged. The air from the fan 10 passes through the oil mist collection unit 30 and the CO2 recovery unit 31 in this order. As the oil mist collection material 33, polypropylene fiber, cellulose, cotton, etc. can be considered. As the CO2 adsorbent A34, amine compounds, ceramics, zeolites, activated carbon, etc. can be considered. As the oil mist collection material 33 and the CO2 adsorbent A34, one type of material may be used, or a plurality of materials may be layered and partitioned by the punching metal 32 in between. The function of this device is that first, the oil mist collection unit 30 collects the oil mist, and then the CO2 recovery unit 31 adsorbs the CO2. Since the oil mist has larger particles than CO2, first, the oil mist is collected, and it is better to adsorb CO2 in a state where there are no large particles, which improves the adsorption efficiency. Punching metals 32 are arranged before and after the oil mist collection material 33 and the CO2 adsorbent A34 respectively, so as to prevent the outflow of the oil mist collection material 33 and the CO2 adsorbent A34 while efficiently taking in air.

[0020] (Usage example) The usage example of Example 1 will be described. Move the oil mist collection device 1 to a work place with a lot of oil mist, turn on the power switch of the fan 10, drive the fan, and collect and adsorb the oil mist and CO2. Oil mist can be efficiently collected by the oil mist collection unit 30, and CO2 exists in the atmosphere in a certain amount, albeit in small amounts, so CO2 can generally be adsorbed in any location.

[0021] The oil mist trapping unit 30 and the CO2 recovery unit 31 are replaced as needed. Replacement may be done periodically, or oil mist and CO2 detectors may be attached to the oil mist trapping device 1 and the replacement time may be determined based on the values measured. One possible method of detection is to drill a hole in the main body cylindrical portion 21, insert a sensor through the hole, measure the amount of oil mist and the amount of CO2, and determine when to replace the oil mist or CO2 based on the measured value or the accumulated value. When replacement is required, the user of the oil mist trapping device 1 requests a service or similar service to perform the replacement. During service or similar service, the oil mist trapping device 1 is disassembled, the oil mist trapping material 33 and CO2 adsorbent A34 are removed from the main body cylindrical portion 21, new oil mist trapping section 30 and CO2 recovery section 31 are installed, the device is reassembled, and the device is returned to the user. The oil mist trapping material 33 is discarded because it has deteriorated oil attached to it. The CO2 adsorbent A34 is appropriately treated at a recycling plant or the like, and the adsorbed CO2 is recovered.

[0022] In this way, CO2 can be captured from the atmosphere using only the electricity required to capture the oil mist. Therefore, since no electricity is actually generated to capture CO2, the CO2 generated by the electricity used to capture the oil mist is captured, making the device carbon-neutral. Therefore, this device is suited to the current situation where the impact of CO2 on the natural environment is becoming a problem.

[0023] Example 2 Another embodiment will be described with reference to Figures 3 to 5. The same parts as in the first embodiment will be omitted. 3A and 3B are three-view diagrams showing another embodiment of the oil mist collecting device according to the present invention, in which (a) is a partial cross-sectional side view, (b) is a front view, and (c) is a back view, with the cover removed. Figure 4 is an exploded view of another embodiment of the oil mist collection device according to the present invention, where (a) is an exploded view of the individual case and (b) is an exploded view of the whole. Figure 5 is a cross-sectional view showing a modification of another embodiment of the oil mist collection device according to the present invention, where (a) is a view showing the air flow when no O-ring is used, (b) is a view showing the air flow in this embodiment with an O-ring, (c) is the case when a plurality of CO2 absorbents are placed in the individual case, and (d) is the case when the individual cases are separated for different absorbents.

[0024] According to Example 1, it is possible to recover CO2 in the atmosphere only by the power for collecting oil mist. However, when replacing the oil mist collection material and the CO2 adsorption material, the device had to be returned for service etc. and one had to wait until a device with new collection materials etc. was delivered. Therefore, collection and adsorption could not be performed during that period, which was inconvenient. Therefore, there has been a demand for a device that allows users to replace collection materials etc. without relying on services etc.

[0025] The oil mist collection device 1 in Fig. 3 is a device that collects oil mist while recovering CO2, and by putting collection materials etc. into the individual case 40, it is a device that can be replaced by the user. The oil mist collection device 1 is composed of a fan 10, a main body case 20, an oil mist collection unit 30 housed in the individual case 40, and a CO2 recovery unit 31. What is different from Example 1 is that the oil mist collection unit 30 and the CO2 recovery unit 31 are each housed in the individual case 40 and can be inserted into and removed from the main body case 20. The fan 10 is the same fan as in Example 1.

[0026] (Main body case) The main body case 20 constitutes the appearance of the oil mist collection device 1. It consists of a main body 21, an intake side flat plate portion 22, an exhaust side flat plate portion 23, flat plate fixing bolts 24, and a plate 25. The main body tubular portion 21 is the portion that houses the individual case 40. It has a cylindrical shape. The inner diameter of the main body tubular portion 21 and the outer diameter of the cylindrical individual case 40 are approximately the same, and the individual case 40 is housed inside the main body tubular portion 21 in a tightly fitted manner. An intake-side flat plate portion 22 and an exhaust-side flat plate portion 23 are disposed at the ends of the main body cylindrical portion 21. The intake-side flat plate portion 22 and the exhaust-side flat plate portion 23 are fixed at four points by flat plate fixing bolts 24, with the main body cylindrical portion 21 sandwiched between them. The intake side flat plate portion 22 is fixed to the fan 10. The intake side flat plate portion 22 has a hole that is smaller than the outer diameter of the individual case 40, preventing the individual case 40 from protruding toward the fan 10. The exhaust side flat plate portion 23 has a hole that is approximately the same size as the inner diameter of the main body tubular portion 21. The individual case 40 can be inserted into the main body tubular portion 21 through the exhaust side flat plate portion 23. A plate 25 is disposed on the outside of the exhaust-side flat plate portion 23. The plate 25 serves as a lid to prevent the individual case 40 from coming out of the main body cylindrical portion 21. The plate 25 is fixed to the exhaust-side flat plate portion 23 with screws. The plate 25 has a hole that is smaller than the outer diameter of the individual case 40. Air inside the device is discharged through this hole. As in the first embodiment, covers 51 are attached to both ends of the main body case 20. Four wheels 50 are arranged on the bottom side of the main body case 20 (FIG. 3).

[0027] (individual cases) The individual cases 40 are used to separate the collection material and the adsorbent into units, allowing them to be separated and detached. The individual case equipped with the oil mist trapping material 33 is referred to as an oil mist trapping individual case 41, and the individual case equipped with the CO2 adsorbent A34 is referred to as a CO2 recovery individual case . The individual case 40 is composed of a cylindrical tube portion 43, an annular lid portion 44 that covers the edge of the end of the tube portion, a handle 46, and an O-ring 47, and the oil mist collection portion 30 or the CO2 recovery portion 31 is arranged inside the individual case 40. The oil mist collection section 30 consists of an oil mist collection material 33 and a punching metal 45 as a filter medium. The CO2 recovery section 31 consists of a CO2 adsorbent A34 and a punching metal 45 as a filter medium. The punching metal 45 has a smaller diameter than the punching metal 32 by the amount of the cylindrical portion 43. The punching metal 45 can efficiently take in air while preventing the outflow of the filler material. (Figs. 3 and 4(a)). The punching metal 45 is fixed by a lid portion 44. The lid portion 44 is in the shape of an annular frame and is screwed to both ends of the cylindrical portion 43. An annular groove 48 is dug in the circumferential direction on the outer periphery of the lid portion 44, and an O-ring 47 is disposed in the groove 48. By attaching the O-ring 47, the outer peripheral surface of the lid portion 43 and the inner peripheral surface of the main body case 20 are slidably and closely adhered. Therefore, the outer periphery of the individual case 40 and the inner periphery of the cylindrical portion 43 are slidably and closely adhered. By being closely adhered, air from the fan does not leak from the outside of the individual case 40, the axial displacement is reduced, and the radial rattling can also be reduced. A handle 46 is disposed on the punching metal 45 which is the filter medium on the exhaust side, and it helps when removing the individual case 40 from the main body cylindrical portion 21.

[0028] (Mounting procedure) Next, the procedure for mounting the individual case 40 on the main body case 20 is shown (Fig. 4(b)). The main body case 20 is in a state where the cover 51 and the plate 25 on the exhaust side are removed. The wheels are omitted. First, the oil mist collection individual case 41 is inserted into the main body cylindrical portion 21. The user inserts the oil mist collection individual case 41 while holding the handle 46. Because there is the handle 46, the insertion is easy. Next, the CO2 recovery individual case 42 is inserted into the main body cylindrical portion 21. The user inserts the CO2 recovery individual case 42 while holding the handle 46 in the same way as the oil mist collection individual case 41 filled with the oil mist collection material 33. When the insertion of the two individual cases 40 is completed, screw the plate 25 to the exhaust side flat plate portion 23. Further, attach the cover 51 to complete it.

[0029] Since the individual case 40 is divided into an oil mist collection individual case 41 and a CO2 recovery individual case 42, when replacing the individual case 40, it can be replaced all at once or only one of them can be replaced. Also, since it will be replaced with another new individual case 40, the device can be immediately operated after replacement, without causing work stoppage and improving work efficiency.

[0030] (Air flow) In the case of the individual case type, as shown in the second embodiment, the case where there is no gap due to the O-ring 47 (Fig. 5(b)) and the case where there is a gap between the outer circumference of the individual case 40 and the inner circumference of the main body cylinder portion 21 (Fig. 5(a)) will be compared and described. When there is no O-ring 47 between the outer circumference of the individual case 40 and the inner circumference of the main body cylinder portion 21 and there is a gap, a part of the air from the fan 10 will pass through the gap without passing through the collection material or the adsorption material, resulting in a decrease in the collection and adsorption efficiency. When there is an O-ring 47 between the outer circumference of the individual case 40 and the inner circumference of the main body cylinder portion 21 and there is no gap, all the air from the fan 10 will pass through the collection material and the adsorption material, so the collection and adsorption efficiency will be improved. When the lid portion 44 of the individual case 40 is in close contact with the intake side flat plate portion 22 or the plate 25, a similar effect can be obtained. However, due to dimensional tolerances or the short shape of the individual case 40, a part of the air will pass through the surrounding gap, reducing the efficiency. By the O-ring 47 of the lid portion 44 being in close contact with the inner diameter of the main body cylinder portion 21, as shown in Fig. 5(b), even when using individual cases 40 of different sizes, efficient collection and adsorption can be performed.

[0031] (Modification example of the individual case) A modification example of the CO2 recovery individual case 42 will be described with reference to Figs. 5(c) and (d). Possible CO2 adsorbents include amine compounds, ceramics, zeolites, and activated carbon, but it is also possible to use multiple materials rather than just one type of material. FIG. 5(c) shows a case where the CO2 capture section 31 in an individual CO2 capture case 42, which is an individual case for capturing CO2, is made up of layers of adsorbents made of a plurality of materials. 5(c) shows a case where four layers are created using two types of CO2 adsorbents. For example, if an amine compound is used as CO2 adsorbent A34 and zeolite is used as CO2 adsorbent B35, four layers can be created and arranged in one individual CO2 capture case 42 in the following order from the intake side: CO2 adsorbent A34, CO2 adsorbent B35, CO2 adsorbent A34, CO2 adsorbent B35. Perforated metal 45 is placed between the layers. By using this configuration, CO2 can be first absorbed by the amine compound of CO2 adsorbent A34, and then the process of absorbing CO2 on the surface of the zeolite of CO2 adsorbent B35 can be repeated multiple times, allowing CO2 to be effectively adsorbed. In this example, an example in which the individual case 40 is used is shown, but the present invention can also be applied to a case such as the first embodiment in which the individual case 40 is not used.

[0032] FIG. 5(d) shows a case where a plurality of CO2 capture individual cases 42, which are individual cases for the CO2 capture unit 31, are configured, and each individual case is made of a different adsorbent material. In Figure 5(d), when the CO2 adsorbent A34 is an amine compound and the CO2 adsorbent B35 is a zeolite, an individual CO2 recovery case 42 filled with the CO2 adsorbent A34 and an individual CO2 recovery case 42 filled with the CO2 adsorbent B35 are provided. Three individual cases 40 may be inserted into the main body tube portion 21 to capture oil mist and adsorb and recover CO2: an individual oil mist collection case 41, an individual CO2 recovery case 42 for CO2 adsorbent A34, and an individual CO2 recovery case 42 for CO2 adsorbent B35. With this configuration, on the CO2 side, by appropriately replacing the amine compound and zeolite depending on the amount of CO2 adsorbed, it is possible to maintain high CO2 adsorption efficiency at all times.

[0033] Furthermore, since multiple individual cases 40 can be added or replaced, individual cases 40 filled with deodorizers or individual cases 40 filled with fragrances can also be used together. In spaces where oil mist is generated, odors are often a problem. In such cases, the work environment can be improved by using individual cases 40 filled with deodorizing materials or fragrances. In addition, in a dusty working environment, an individual case 40 filled with a dustproof material may be attached to the intake side.

[0034] (summary) In this way, the oil mist collection device of the present invention can be moved according to the needs of the workplace, etc., and can capture oil mist in the atmosphere while recovering CO2, thereby improving the working environment and also the global environment.

[0035] Furthermore, by using the most suitable materials for the oil mist trapping material and CO2 adsorbent, the efficiency of trapping and adsorption can be improved.

[0036] Furthermore, by packaging the collection material and CO2 adsorption material in individual cases, replacement is easy and work efficiency can be improved.

[0037] Furthermore, by attaching an O-ring to the outer periphery of the individual case, all of the air from the fan can be received within the individual case, thereby increasing the collection and adsorption efficiency.

[0038] Furthermore, by attaching a handle to the end of the individual case, it is possible to easily take the individual case in and out, which is preferable.

[0039] Furthermore, it is preferable that the CO₂ recovery individual case is composed of layers of adsorbents of a plurality of materials, so that different CO₂ adsorption methods in multiple stages can be used in a single individual case.

[0040] Moreover, by using a plurality of CO₂ recovery individual cases made of different materials, the replacement timing can be adjusted for each material, and the adsorption efficiency can be improved.

[0041] Also, by using an individual case filled with a dust-proof material, a deodorizing material, and a fragrance, it is possible to further improve the working environment while collecting oil mist and recovering CO₂, which is preferable.

Industrial Applicability

[0042] The oil mist collection device according to the present invention can recover CO₂ in addition to collecting oil mist. Therefore, it can be adopted specifically for CO₂ recovery not only at a work site where oil mist is generated but also at a work site where oil mist is not generated, and it is considered to have great industrial applicability.

Explanation of Reference Numerals

[0043] 1 Oil mist collection device 10 Fan 20 Main body case 21 Main body cylindrical part 22 Intake side flat plate part 23 Exhaust side flat plate part 24 Flat plate fixing bolt 25 Plate 30 Oil mist collection part 31 CO₂ recovery part 32 Punching metal (filter material) 33 Oil mist collection material 34 CO₂ adsorbent A 35 CO₂ adsorbent B 40 Individual case 41 Oil mist collection individual case 42 CO₂ recovery individual case 43 Cylinder part 44 Lid 45 Punching metal (filter material) 46 Toride 48 Groove 47 O-ring 50 wheels 51 Cover

Claims

1. An oil mist collection device comprising: a main body case, a pressure-type fan, an oil mist collection section, a CO2 recovery section, and wheels for movement. The oil mist collection section and the CO2 recovery section are housed in the main body case. The oil mist collection section is filled with an oil mist collection material as a filler. The CO2 recovery section is filled with a CO2 adsorbent as a filler. The oil mist collection section and the CO2 recovery section have a structure in which the filler is sandwiched between filter materials from both the intake side and the exhaust side. An oil mist collection device, characterized in that air can pass through the oil mist collection section and the CO2 recovery section in this order.

2. The oil mist collection material is any one of polypropylene fiber, cellulose, and cotton. The CO2 adsorbent is any one of an amine compound, ceramics, zeolite, and activated carbon. The oil mist collection device according to claim 1, characterized in that.

3. The oil mist collection section and the CO2 recovery section are each housed in an individual case. The individual case is housed in the main body case, and the individual case can be inserted into and removed from the main body case. The oil mist collection device according to claim 2, characterized in that.

4. The main body case and the individual case are cylindrical. The individual case is composed of a cylindrical tube portion and an annular lid portion that covers the edge of the end of the tube portion. The lid portion is screwed to both ends of the tube portion. An annular groove is provided in the circumferential direction on the outer peripheral surface of the lid portion, and an O-ring is disposed in the groove. The oil mist collection device according to claim 3, characterized in that the outer peripheral surface of the lid portion and the inner peripheral surface of the main body case are slidably in close contact with each other by the O-ring.

5. The oil mist collection device according to claim 3, characterized in that a handle is attached to the filter material on the exhaust side of the oil mist collection section and the CO2 recovery section.

6. The oil mist collection device according to claim 2, characterized in that the CO2 recovery section is composed of layers of adsorbents of a plurality of materials.

7. The CO2 recovery section is composed of a plurality of the individual cases, and each of the individual cases is made of an adsorbent of a different material. The oil mist collection device according to claim 3, characterized in that.

8. The oil mist collection device according to claim 3, characterized in that the individual case filled with a dust-proof material, a deodorizing material, and a fragrance can be used.

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