Oil mist collector

Abstract

According to the necessity of the workplace or the like, a device is moved to provide an oil mist collecting device capable of collecting oil mist in the air and recovering CO2. 【Solution means】An oil mist collecting device, which comprises a main body case, a pressure-type fan, an oil mist collecting part, a CO2 recovery part, and moving wheels. The oil mist collecting part and the CO2 recovery part are housed in the main body case. The oil mist collecting part is filled with an oil mist collecting material as a filler, and the CO2 recovery part is filled with a CO2 adsorbing material as a filler. The oil mist collecting part and the CO2 recovery part have a structure in which the filler is sandwiched between filter materials from both the intake side and the exhaust side, and means is adopted such that air can pass through the oil mist collecting part and the CO2 recovery part in this order.

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, in response to the necessity in workplaces, etc., a device that can collect oil mist while recovering CO2 in the atmosphere has been demanded.

[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 therebetween, and an induced air flow surrounding the contaminated air rising from a 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

Problems to be Solved by 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 move the device according to the needs of a workplace or the like, collect oil mist in the atmosphere, and recover CO2.

Means for Solving the Problems

[0006] To solve the above problems, the present invention provides an oil mist collection device comprising a main body case, a pressure-type fan, an oil mist collection section, a CO2 recovery section, and moving wheels. 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, and the CO2 recovery section is filled with a CO2 adsorption material 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, and air can pass through the oil mist collection section and the CO2 recovery section in this order.

[0007] Further, the present invention adopts a means in which the oil mist collection material is any one of polypropylene fiber, cellulose, and cotton, and the CO2 adsorption material is any one of an amine compound, ceramics, zeolite, and activated carbon.

[0008] Furthermore, the present invention adopts a means in which 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 each individual case can be inserted into and removed from the main body 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 an annular groove is provided in the circumferential direction on the outer peripheral surface of the lid portion. An O-ring is disposed 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 and closely adhered.

[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 a plurality of 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] Furthermore, in the present invention, the individual case filled with a dust-proof material, a deodorizing material, and a fragrance can be used.

Advantages of the Invention

[0014] According to the oil mist collection device according to 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 and the global environment can also be improved.

Brief Description of the Drawings

[0015]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Embodiments for Carrying Out the Invention

[0016] The oil mist collection device according to the present invention is characterized in that it can collect oil mist and recover CO2 in the atmosphere according to the necessity in a workplace or the like. Hereinafter, an embodiment example of the oil mist collection device according to the present invention will be described based on the drawings. Note that the overall configuration of the oil mist collection device shown below and the configuration of each part are not limited to the embodiments described below, and can be changed within the scope of the technical idea of the present invention, that is, within the scope of shapes, dimensions, structures, etc. that can exhibit the same operational effects.

[0017] (Example 1) According to FIGS. 1 to 2, the present invention Regarding the form that is the premise of will be described. FIG. 1 shows an overall perspective view of the present invention. FIG. 2 is a three-view drawing showing an The premise of embodiment of the oil mist collection device according to the present invention, where (a) is a partial cross-sectional side view, (b) is a front view, and (c) is a rear view. The cover is removed. The oil mist collection device 1 is a device that collects oil mist and recovers CO2. The oil mist collection device 1 is composed of a fan 10, a main body case 20, an oil mist collection unit 30, a CO2 recovery unit 31, and wheels 50 for movement. The fan 10 is of a pressurized type and forcibly sends ambient air into the main body case 20. It is connected to a 100V commercial power supply and is turned on / off by 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. Since the fan 10 is a pressurized type, it can collect oil mist and CO2 with strong wind force. In this embodiment, an example of a propeller fan is shown, but it is not limited to a propeller fan, and a sirocco fan or the like may also be used.

[0018] (Main body case) The main body case 20 constitutes the appearance of the oil mist collecting device 1. It is composed of a main body cylindrical part 21, an intake side flat plate part 22, an exhaust side flat plate part 23, and flat plate fixing bolts 24. The main body cylindrical part 21 is a part for accommodating the oil mist collecting material 33, the CO2 adsorbing material A34, etc. It is cylindrical, and the intake side flat plate part 22 and the exhaust side flat plate part 23 are arranged at the ends. The intake side flat plate part 22 and the exhaust side flat plate part 23 are fixed at four locations by the flat plate fixing bolts 24 in a form sandwiching the main body cylindrical part 21 (FIG. 1, FIG. 2(a)). Holes about the inner diameter of the main body cylindrical part 21 are opened in the intake side flat plate part 22 and the exhaust side flat plate part 23. The intake side flat plate part 22 is fixed to the fan 10. Since the exhaust side flat plate part 23 is on the exhaust side, it is open. Covers 51 are attached to both ends of the main body case 20. The covers 51 are box-shaped, and a plurality of slits are provided in the bottom surface part of the box. By attaching the covers 51, it prevents people around from accidentally touching the fan 10 and the open holes. Also, 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 freely moved. Therefore, this device can be shared at a plurality of workplaces, and the collection of oil mist can be efficiently performed. Also, when using the oil mist collecting device 1 at one place for a relatively long period, the wheels 50 can be removed and fixed to a workplace or the like using the wheel 50 support part. This is because it is efficient as it eliminates the need to check the installation position by fixing it at the optimal position.

[0019] (Collection and recovery part) The oil mist collection section 30 is a part for collecting oil mist, and the CO2 recovery section 31 is a part for adsorbing and finally recovering CO2. The oil mist collection section 30 is composed of a punching metal 32 as a filter medium and an oil mist collection material 33, and the CO2 recovery section 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 filler does not flow out is acceptable. For example, a metal mesh or a screen composed of a plurality of slits may also be used. Both the oil mist collection section 30 and the CO2 recovery section 31 have a structure in which the filler is sandwiched between the punching metals on both the intake side and the exhaust side. The oil mist collection section 30 is arranged on the fan 10 side, and then the CO2 recovery section 31 is arranged. The air from the fan 10 passes through the oil mist collection section 30 and the CO2 recovery section 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 section 30 collects the oil mist, and then the CO2 recovery section 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 without large particles because the adsorption efficiency is higher. Punching metals 32 are arranged before and after the oil mist collection material 33 and the CO2 adsorbent A34 respectively, so that while preventing the outflow of the oil mist collection material 33 and the CO2 adsorbent A34, the air can be efficiently taken in.

[0020] (Usage example) The usage example of Example 1 will be described. Move the oil mist collection device 1 to a workplace 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. The oil mist can be efficiently collected by the oil mist collection unit 30, and since CO2 exists in a certain amount in the atmosphere even though it is small, it is generally possible to adsorb CO2 anywhere.

[0021] The oil mist collection unit 30 and the CO2 recovery unit 31 are appropriately replaced. The replacement can be regular, or detectors for oil mist and CO2 can be attached to the oil mist collection device 1, and the replacement timing can be determined based on the detected values. As a detection method, for example, holes can be made in the main body cylinder part 21, sensors can be inserted inside through the holes, the amounts of oil mist and CO2 can be measured, and the replacement timing can be determined based on the measured values or the accumulated values. At the time of replacement, the user of the oil mist collection device 1 requests the replacement from a service or the like. In the service or the like, the oil mist collection device 1 is disassembled, the oil mist collection material 33 and the CO2 adsorption material A34 inside the main body cylinder part 21 are taken out, new oil mist collection unit 30 and CO2 recovery unit 31 are arranged, assembled, and returned to the user. Since the oil mist collection material 33 is in a state where deteriorated oil is attached, it is discarded. The CO2 adsorption material A34 is appropriately processed at a recycling factory or the like, and the adsorbed CO2 is recovered.

[0022] In this way, it is possible to recover CO2 in the atmosphere only with the power for collecting the oil mist. Therefore, substantially no power is generated for recovering CO2, so it is possible to recover the CO2 generated by the power for collecting the oil mist, and it can be made into a device corresponding to carbon neutrality. Therefore, it can be made into a device that meets the current situation where the impact of CO2 on the natural environment is regarded as a problem.

[0023] (Example 2) The form according to the present invention The embodiments will be described with reference to FIGS. 3 to 5. Is the premise form of the present invention Parts similar to those in the first embodiment are omitted. FIG. 3 is a three-view drawing showing an embodiment of the oil mist collection device according to the present invention Of the implementation It is a three-view drawing showing an embodiment, where (a) is a side partial cross-sectional view, (b) is a front view, and (c) is a rear view. The cover is removed. FIG. 4 is an exploded view of an embodiment of the oil mist collection device according to the present invention Of the implementation where (a) is an exploded view of the individual case and (b) is an exploded view of the whole. FIG. 5 is a cross-sectional view showing a modified example of an embodiment of the oil mist collection device according to the present invention Of the implementation where (a) is a diagram showing the air flow when no O-ring is used, (b) is a diagram 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 the first embodiment, 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 adsorbent, the device had to be returned for service or the like, and the user had to wait until a device with a new collection material or the like was installed. 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 the user to replace the collection material or the like without relying on service or the like.

[0025] The oil mist collection device 1 in FIG. 3 is a device that collects oil mist while recovering CO2, and the user can replace it by putting the collection material or the like in the individual case 40. 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. The difference from Example 1 is that the oil mist collection unit 30 and the CO2 recovery unit 31 are each housed in an 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 cylinder portion 21 is the portion where the individual case 40 is housed. It is cylindrical. The inner diameter of the main body cylinder portion 21 and the outer diameter of the cylindrical individual case 40 are approximately the same, and the individual case 40 is housed in a form that closely adheres to the inside of the main body cylinder portion 21. The intake side flat plate portion 22 and the exhaust side flat plate portion 23 are arranged at the ends of the main body cylinder portion 21. The intake side flat plate portion 22 and the exhaust side flat plate portion 23 are fixed at four locations by flat plate fixing bolts 24 in a form that sandwiches the main body cylinder portion 21. The intake side flat plate portion 22 is fixed to the fan 10. The intake side flat plate portion 22 has holes smaller than the outer diameter of the individual case 40, preventing the individual case 40 from coming out in the direction of the fan 10. The exhaust side flat plate portion 23 has holes approximately the same size as the inner diameter of the main body cylinder portion 21. Through the exhaust side flat plate portion 23, the individual case 40 can be inserted into the inside of the main body cylinder portion 21. A plate 25 is arranged outside 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 cylinder portion 21. The plate 25 is fixed to the exhaust side flat plate portion 23 with screws. The plate 25 has holes smaller than the outer diameter of the individual case 40. Through these holes, the air inside the device is discharged. Covers 51 are attached to both ends of the main body case 20 in the same manner as in Example 1. Also, four wheels 50 are arranged on the bottom side of the main body case 20 (Figure 3).

[0027] (Individual case) The individual case 40 is for unitizing, separating, and making detachable for each collection material and adsorbent material. The individual case equipped with the oil mist collection material 33 is defined as the oil mist collection individual case 41, and the individual case equipped with the CO2 adsorbent A34 is defined as the CO2 recovery individual case 42. 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. Inside the individual case 40, an oil mist collection portion 30 or a CO2 recovery portion 31 is arranged. The oil mist collection portion 30 consists of the oil mist collection material 33 and a punching metal 45 as a filter material. The CO2 recovery portion 31 consists of the CO2 adsorbent A34 and a punching metal 45 as a filter material. The punching metal 45 has a smaller diameter than the punching metal 32 by the amount of the tube portion 43. The punching metal 45 can efficiently take in air while preventing the outflow of the filler material. (Figs. 3, 4(a)). The punching metal 45 is fixed by the lid portion 44. The lid portion 44 is in the shape of an annular frame and is screwed to both ends of the tube portion 43. An annular groove 48 is dug in the circumferential direction on the outer periphery of the lid portion 44, and the O-ring 47 is arranged 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 in close contact. Therefore, the outer periphery of the individual case 40 and the inner periphery of the tube portion 43 are slidably in close contact. By being in close contact, the 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 arranged on the punching metal 45 which is the filter material on the exhaust side, and it helps when removing the individual case 40 from the main body tube 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, insert the oil mist collection individual case 41 into the main body cylinder part 21. The user inserts the oil mist collection individual case 41 while holding the handle 46. Since there is a handle 46, the insertion is easy. Next, insert the CO2 recovery individual case 42 into the main body cylinder part 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. After the insertion of the two individual cases 40 is completed, screw the plate 25 to the exhaust side flat plate part 23. Further, attach the cover 51, and it is completed.

[0029] Since the individual case 40 is divided into the oil mist collection individual case 41 and the 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 the replacement, without causing a work stoppage, and the work efficiency can be improved.

[0030] (Air flow) In the case of the individual case type, as shown in the second embodiment, it will be described by comparing the case where there is no gap by 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 part 21 (Fig. 5(a)). 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 part 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 part 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. By the lid part 44 of the individual case 40 being in close contact with the intake side flat plate part 22 and the plate 25, a similar effect can also be obtained, but 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. When the O-ring 47 of the lid portion 44 is 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 individual case) A modification example of the CO2 recovery individual case 42 will be described with reference to Figs. 5(c) and 5(d). As CO2 adsorbents, amine compounds, ceramics, zeolites, activated carbon, etc. can be considered. However, instead of using only one type of material, using a plurality of materials is also conceivable. Fig. 5(c) shows a case where the CO2 recovery section 31 in the CO2 recovery individual case 42, which is an individual case for CO2 recovery, is composed of layers of adsorbents of a plurality of materials. Fig. 5(c) shows a case where four layers are made using two types of CO2 adsorbents. For example, when an amine compound is used as the CO2 adsorbent A34 and zeolite is used as the CO2 adsorbent B35, it is conceivable to create and arrange four layers in one CO2 recovery individual case 42 in the order of CO2 adsorbent A34, CO2 adsorbent B35, CO2 adsorbent A34, and CO2 adsorbent B35 from the intake side. A punching metal 45 is arranged between the layers. With such a configuration, first, CO2 can be absorbed by the amine compound of the CO2 adsorbent A34, and then the process of absorbing CO2 on the surface of the zeolite of the CO2 adsorbent B35 can be repeated a plurality of times, and CO2 can be effectively adsorbed. In this example, an example using the individual case 40 is shown, but it can also be applied to cases such as Example 1 where the individual case 40 is not used.

[0032] Also, Fig. 5(d) shows a case where the CO2 recovery individual case 42, which is an individual case for the CO2 recovery section 31, is composed of a plurality of cases, and each individual case is made of an adsorbent of a different material. In Fig. 5(d), when the CO2 adsorbent A34 is an amine compound and the CO2 adsorbent B35 is a zeolite, a CO2 recovery individual case 42 filled with the CO2 adsorbent A34 and a CO2 recovery individual case 42 filled with the CO2 adsorbent B35 are provided. In the main body cylinder part 21, three individual cases 40, namely, an oil mist collection individual case 41, a CO2 recovery individual case 42 for the CO2 adsorbent A34, and a CO2 recovery individual case 42 for the CO2 adsorbent B35, may be inserted to collect oil mist and adsorb and recover CO2. With such a configuration, on the CO2 side, by appropriately exchanging according to the CO2 adsorption amounts of the amine compound and the zeolite, a high CO2 adsorption efficiency can always be maintained.

[0033] Also, since a plurality of individual cases 40 can be added or exchanged, an individual case 40 filled with a deodorant or an individual case 40 filled with an aromatic agent can also be used together. In a space where oil mist is generated, odor is often a problem. At that time, by using an individual case 40 filled with a deodorant material or a fragrance, the working environment can be improved. Also, in a dusty working environment, an individual case 40 filled with a dust-proof material may be attached to the intake side.

[0034] (Summary) As described above, according to the oil mist collection device according to the present invention, according to the necessity of a workplace or the like, the device can be moved to collect oil mist in the atmosphere and recover CO2, so that while improving the working environment, the global environment can also be improved.

[0035] Also, by using optimal materials as the oil mist collection material and the CO2 adsorbent, the collection and adsorption efficiencies can be improved.

[0036] Furthermore, by making the collection material and the CO2 adsorbent in units of individual cases, the replacement becomes easy and the working efficiency can be improved.

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

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

[0039] Furthermore, since the individual CO2 recovery case is composed of layers of adsorbents of multiple materials, it is possible to use different CO2 adsorption methods in multiple stages with a single individual case, which is preferable.

[0040] Furthermore, by using a plurality of individual CO2 recovery cases made of different materials, it is possible to adjust the replacement timing for each material and improve the adsorption efficiency.

[0041] Moreover, by using an individual case filled with a dust-proof material, a deodorizing material, and a fragrance, it is possible to 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 work sites where oil mist is generated but also at work sites where it is not, and its industrial applicability is considered to be great.

Explanation of Reference Numerals

[0043] 1 Oil mist collection device 10 Fan 20 Main body case 21 Main body cylinder part 22 Intake side flat plate part 23 Exhaust side flat plate part 24 Flat plate fixing bolts 25 Plate 30 Oil mist collection part 31 CO2 Recovery Section 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 Cylindrical Part 44 Cover Part 45 Punching Metal (Filter Material) 46 Handle 48 Groove 47 O-ring 50 Wheel 51 Cover

Claims

1. An oil mist collecting device, It consists of a main body case, a pressure type fan, an oil mist collector, a CO2 capture unit, and wheels for transportation. The oil mist collection unit and the CO2 capture unit are each housed in an individual case, The individual cases are accommodated in the main case, and each individual case can be inserted into and removed from the main case; The main 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 cylindrical portion, The outer circumferential surface of the cover has a circular groove in a circumferential direction, and an O-ring is disposed in the groove. The O-ring ensures that the outer peripheral surface of the cover and the inner peripheral surface of the main body case are in close contact with each other so as to be able to slide with each other. The oil mist collecting section is filled with an oil mist collecting material as a filler, The CO2 capture section is filled with a CO2 adsorbent as a filler, The oil mist capture section and the CO2 capture section have a structure in which the filler is sandwiched between filter media 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 then the CO2 capture section.

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

3. 2. The oil mist collecting device according to claim 1, wherein the oil mist collecting section and the filter material on the exhaust side of the CO2 capture section have handles.

4. 3. The oil mist collecting device according to claim 2, wherein the CO2 capture section is composed of layers of adsorbents made of a plurality of materials.

5. 2. The oil mist collecting device according to claim 1, wherein the CO2 capture unit is composed of a plurality of the individual cases, and each of the individual cases is made of an adsorbent material different from the others.

6. 2. The oil mist collecting device according to claim 1, wherein the individual cases can be filled with dust-proofing material, deodorizing material, and fragrances.

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