JP2007222832A - Mist collector in washing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mist collector in a washing apparatus eliminating a hazing phenomenon caused by mist by collecting the fine moisture mist generated during washing work in a washing chamber, and cleaning or drying works. <P>SOLUTION: A first collection means provided to reduce the speed of air and discharge it, flowing into a casing by a cyclone disposed above the casing; a second collection means with a demister member using electret nonwoven fabric pieces mounted in the casing; and a common suction port formed by integrating suction ports of a two-chamber type Root blower, are sequentially connected to a suction pipe communicated with the washing chamber. A discharge port of one chamber of the blower is connected to a nozzle provided in a drying chamber, and air discharged from a discharge port of the other chamber is released to the atmosphere. By operating the blower, air containing mist in the washing chamber is sucked to collect mist in the air by the first and second collection means. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention collects mist generated from a water-soluble cleaning solution, particularly 100 angstrom (0.01 μm) class fine water mist, during the cleaning operation of a workpiece performed in a cleaning chamber of a cleaning apparatus, and further performs cleaning. The present invention relates to a mist collecting device capable of cleaning and drying a subsequent workpiece.

  In a general cleaning device, water mist is generated from a water-soluble cleaning liquid during a workpiece (work) cleaning operation, and water is also used when cleaning and drying the workpiece after cleaning with an air blow device. Mist is generated. When a fine water mist of 100 angstrom (0.01 μm) class is generated, the mist diffuses in the cleaning room or the factory and causes a so-called “hazy phenomenon”, which is a factor of deteriorating the working environment.

  As the mist collecting device, various structures such as a filter method, a demister method, a collision plate method, and an electric dust collection method are known. For example, Japanese Patent Application Laid-Open No. 11-179122 discloses an intake section that sucks a gas contaminated with oil mist, a capture section that captures oil mist from the gas sucked from the intake section, and a capture section thereof. An oil mist collecting device is disclosed that includes an oil reservoir that stores an aggregate of oil mist that has been captured by the above and an exhaust unit that discharges a gas from which the oil mist has been removed. Japanese Patent Laid-Open No. 2000-296305 discloses that a permeable member is provided at the entrance of a hood disposed above a mist generating section, and the mist is attached to the permeable member by the operation of a suction device connected to the suction pipe of the hood. A mist collecting device for sucking and collecting an object is disclosed. Japanese Patent Laid-Open No. 9-47617 discloses a collecting plate in which a porous material layer is provided on the surface on which mist collides is provided in the collecting chamber, and the mist-containing air guided to the collecting chamber is collected in the collecting plate. A mist removing device that collects mist by colliding with the mist is disclosed.

As described above, the mist collecting device has various structures, but the above-mentioned “hazy phenomenon” is not solved when the collecting efficiency of a fine water mist of 100 angstrom (0.01 μm) is low. Therefore, it can be said that it is difficult to make the work environment comfortable and to ensure the safety of the worker's health.
Japanese Patent Laid-Open No. 11-179122 JP 2000-296305 A Japanese Patent Laid-Open No. 9-47617

  The object of the present invention is to collect the fine water mist of 100 angstrom class generated during the cleaning operation in the cleaning chamber to eliminate the haze phenomenon caused by the mist, and also to clean and dry the workpiece. It is providing the mist collection apparatus in the washing | cleaning apparatus which can be performed.

In order to achieve the above object, the invention described in claim 1 is a mist trap provided to collect mist generated from a cleaning liquid at the time of cleaning a workpiece performed in a substantially sealed cleaning chamber of a cleaning device. Collecting device,
A cyclone formed so as to expand downward in a trumpet shape is disposed in the suction pipe provided to communicate with the cleaning chamber, and the flow rate of air flowing into the case is determined by the cyclone. A first collecting means provided to lower and exhaust, and a demister member having a multi-layer structure with a mesh-like reinforcing plate interposed between the electric stone non-woven piece and the electric stone non-woven piece and mounted in the case A second collection means provided so as to pass air to be filtered along the surface direction of the demister member, and a common suction port in which the suction ports of the two-chamber roots type blower are combined into one in order, The discharge port of one chamber of the blower is connected to a nozzle provided in the cleaning device in order to air blow the workpiece, and is discharged from the discharge port of the other chamber. The air is discharged to the atmosphere, and the air containing the mist in the cleaning chamber is sucked by the operation of the roots blower, and the mist in the air is collected by the first collecting means and the second collecting means. The workpiece can be cleaned and dried by ejecting the pressure air that is guided to the common suction port of the Roots-type blower and discharged from the discharge port of the one chamber from the nozzle. It is characterized by that.

In order to achieve the same object, the invention described in claim 2 is a mist provided so as to collect mist generated from the cleaning liquid when the workpiece is cleaned in a substantially sealed cleaning chamber of the cleaning apparatus. In the collection device,
A main shaft driven and rotated by a motor device is vertically provided in a suction pipe provided so as to communicate with the cleaning chamber, and a disc-shaped rotary brush and a plate-shaped swing-off member are provided on the main shaft. Are attached in order and fixed, and between the first collection means provided with a cyclone formed so as to expand in a trumpet shape toward the bottom, in the lower part of the tank, A second collecting means provided in such a manner that a demister member having a multilayer structure with a mesh-like reinforcing plate interposed in the case is mounted in the case and air to be filtered is passed along the surface direction of the demister member; Connected to a common suction port that combines the suction ports of the chamber-type Roots-type blower into one, and the discharge port of one chamber of the blower is provided in the cleaning device in order to air blow the workpiece. No The air is discharged from the discharge port of the other chamber to the atmosphere, and the air containing the mist in the cleaning chamber is sucked by the operation of the roots blower. The mist in the air is collected by the first collecting means and the second collecting means, and the pressure air led to the common suction port of the Roots-type blower and discharged from the discharge port of the one chamber is It is characterized in that the workpiece can be cleaned and dried by being ejected from the nozzle.

  In order to achieve the same object, the invention described in claim 3 is the mist collecting device in the cleaning device according to claim 1 or 2, wherein the demister member of the second collecting means is a rectangular tourmaline nonwoven piece. The reinforcing plate is interposed between the electric stone nonwoven fabric piece and a multilayer structure is formed, and the electric stone nonwoven fabric piece and the reinforcing plate are attached to the case in a state of being in close contact with each other. is there.

  In order to achieve the same object, the invention described in claim 4 is the mist collecting device in the cleaning device according to claim 1 or 2, wherein the demister member of the second collecting means is bent in a zigzag shape. The reinforcing plate is interposed between the bent pieces of the formed electric stone non-woven piece to form a multilayer structure, and the electric stone non-woven piece and the reinforcing plate are attached to the case in close contact with each other. It is characterized by that.

(Invention of Claim 1)
The mist collecting device in this cleaning device can collect water mist generated during the cleaning operation in the cleaning chamber, particularly fine water mist of 100 angstrom class with high efficiency, and the “haze phenomenon” caused by the mist. Can be eliminated. Therefore, it greatly contributes to the protection of workers and the environment in the factory. In addition, workpieces can be cleaned and dried in the cleaning device using the pressure air discharged from the two-chamber Roots blower, and there is no need for a separate air blow cleaning and drying device. Is.

(Invention of Claim 2)
The mist collecting device in this cleaning device has a structure suitable when a large amount of water-soluble cleaning liquid is used in an amount of 50 to 100 liters per minute, and the “haze phenomenon” due to water mist generated in the cleaning chamber. It can be resolved. In addition, workpieces can be cleaned and dried in the cleaning device using the pressure air discharged from the two-chamber Roots blower, and there is no need for a separate air blow cleaning and drying device. Is.

(Invention of Claim 3 and Claim 4)
The mist collecting device in this cleaning device is equipped with a multi-layered demister member with a reinforcing plate interposed between ultrathin fiber cord stone nonwoven fabric pieces in a dense state and in the wide surface direction of the cordite nonwoven fabric pieces. Since air containing mist is allowed to pass, 100 angstrom class water mist can be collected with high efficiency.

  Incidentally, the electric stone non-woven fabric piece is a special ultra-fine fiber non-woven fabric made into an electric stone (electret) by a predetermined method, and maintains electric polarization even in the absence of an external electric field to give a high electric field to the surroundings. Have properties. An example of a commercially available product is Tremicron (registered trademark) manufactured by Toray Industries, Inc.

  The best mode of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic diagram of a mist collecting device in the cleaning apparatus of the first embodiment, FIG. 2 is an explanatory diagram schematically showing the configuration of the main part of the present invention, and FIG. 3 is an explanatory diagram of a second collecting means. 4 is an explanatory view of a demister member, FIG. 5 is an explanatory view of a demister member of another form, FIG. 6 is a schematic view of a mist collecting device in a cleaning device of a second embodiment, and FIG. 7 is a second embodiment. It is explanatory drawing of the 1st collection means of an example.

Embodiment 1
In FIG. 1, C shows the washing | cleaning apparatus to which 10A of mist collection apparatuses in the washing | cleaning apparatus of 1st Embodiment are applied. In this cleaning device C, a substantially sealed cleaning chamber 1 and a drying chamber 7 are disposed adjacent to each other, and a roller conveyor 9 that transports a workpiece w that is a workpiece is disposed so as to cross each chamber. . The cleaning chamber 1 is provided so as to perform cleaning by sucking the water-soluble cleaning liquid stored in the tank 2 by the pump 3 and spraying it onto the workpiece w from the nozzle 4 arranged at a predetermined location. Reference numeral 5 denotes a rubber partition curtain provided at the entrance of each chamber. Further, the drying chamber 7 is provided so as to clean and dry the workpiece w by blowing pressurized air from the nozzle 8 arranged at a predetermined location to the workpiece w.

In this embodiment, the volume of the cleaning chamber 1 is about 1.2 m ³ and the volume of the drying chamber 7 is about 0.7 m ³ . Although the cleaning device in this embodiment includes a cleaning chamber and a drying chamber, the present invention can also be applied to a cleaning device having a structure in which cleaning and drying operations are performed in one chamber.

The mist collecting device 10A in the cleaning device of the first embodiment is composed of a first collecting means 15, a second collecting means 45, and a two-chamber roots blower 65.
The first collecting means 15 is provided so as to communicate with the inside of the cleaning chamber 1 through the suction pipe 11 connected to the inlet 17 of the vertical case 16. Reference numeral 12 denotes a check valve interposed in the suction pipe 11, and reference numeral 13 denotes a plurality of hoods provided so as to protrude into the cleaning chamber 1 and the drying chamber 7.

  A cyclone 18 formed so as to expand downward in a trumpet shape is disposed in the upper part of the case 16, and an exhaust port 19 of the cyclone 18 is provided so as to protrude outward from the case 16. Further, an interference member 20 is provided below the inside of the case 16 to prevent a tornado-like air flow from being generated near the bottom portion 16a. A drain tank 22 is connected to a drain port 21 provided in the case 16. A drain port 22 a of the drain tank 22 is connected to the tank 2 of the cleaning chamber 1 through a drain pipe 23.

  The second collection means 45 connects the inlet 47 of the vertical case 46 to the exhaust port 19 of the cyclone 18 of the first collection means 15. As shown in FIG. 3, the case 46 is divided into an upper chamber 49a and a lower chamber 49b by a partition plate 48 having a communication hole 48a, and a tornado-like air flow is generated near the bottom 46a. The interference member 50 for preventing is provided in the lower chamber 49b. A discharge pipe 52 discharges the air flowing into the lower chamber 49b to the outside. A drain tank 53 is connected to a drain port 51 provided on the bottom 46 a of the case 46.

The upper chamber 49a is provided with a demister member 55 made of a material capable of collecting fine water mist of 100 angstrom class which is the object of the present invention. As shown in FIG. 4, the demister member 55 is in a state in which a mesh-like plastic reinforcing plate 57 is interposed between the rectangular shaped electric stone nonwoven fabric piece 56 and the electric stone nonwoven fabric piece 56, respectively, and these electric stone nonwoven fabrics are in close contact with each other. A multi-layer structure is formed by applying an adhesive 58 to both side edges of the piece 56 and the reinforcing plate 57. The electric stone nonwoven fabric piece 56 is processed to a thickness of about 3 mm by stacking several pieces of material having a thickness of 0.5 mm. The demister member 55 is stored vertically in the case 46 so as to pass the air to be filtered along the surface direction v, and then is subjected to a pressure of 5 to 10 kg in a direction orthogonal to the surface. Is retained. The size of the demister member 55 in this embodiment is 200 mm long, 100 mm wide, and 50 mm thick.
The electric stone nonwoven fabric piece is obtained by converting a special ultra-fine fiber nonwoven fabric into an electric stone by a predetermined method, and is the same material as described in the section of the effect of the invention.

Moreover, about the demister member, the demister member 60 of the form shown in FIG. 5 other than the demister member 55 of the form mentioned above is employable. The demister member 60 is in a state in which a mesh-like plastic reinforcing plate 62 is interposed between the bent piece 61a of the electric stone nonwoven fabric piece 61 formed by zigzag bending and the bent piece 61a are in close contact with each other. A multilayer structure is formed by applying an adhesive 63 to both side edges of the bent piece 61 a and the reinforcing plate 62.

The two-chamber Roots-type blower 65 has a volume ratio of one chamber P and the other chamber V of about 2 to 3, and a common suction port 66 in which the suction ports are combined into one. It is connected to the discharge pipe 52. The discharge port 67 a of one chamber P is connected to the nozzle 8 of the drying chamber 7 through an air supply pipe 68. 69 is a check valve interposed in the air supply pipe 68, and 70 is an opening / closing valve.
A discharge pipe 71 for discharging discharge air to the atmosphere is connected to the discharge port 67b of the other chamber V.

  In this embodiment, the volume ratio of one chamber P to the other chamber V is about 2 to 3, but the design can be changed as appropriate depending on the volume of the cleaning chamber 1 and the amount of water mist.

The specifications of the two-chamber roots type blower in this embodiment are shown below.
Output: 3.7kw Rotational speed: 2250rpm
Air volume for vacuum: 2.3 m ³ / min, vacuum pressure: −5 kPa
Air blow air volume: 1.5 m ³ / min, discharge pressure: 20 kPa

  As described above, the air containing the water mist in the cleaning chamber 1 and the drying chamber 7 is sucked by the operation of the two-chamber roots blower 65, and the mist in the air is collected by the first collecting means 15 and the second collecting means 45. The workpiece w is cleaned and dried by ejecting from the nozzle 8 of the drying chamber 7 pressure air that is collected by the blower 65 and discharged from the discharge port 67a of the one chamber P through the common suction port 66 of the blower 65. A mist collecting device 10A in the cleaning device of the first embodiment that can be applied is configured.

Next, the operation of the mist collecting device in the cleaning device of the first embodiment will be described.
(1) In the substantially sealed cleaning chamber 1 of the cleaning apparatus C, a water-soluble cleaning liquid is sprayed from the nozzle 4 onto the workpiece w. Next, in the drying chamber 7, drying is performed by blowing pressure air generated by the two-chamber roots type blower 65 from the nozzle 8 to the work w. At this time, the water-soluble cleaning liquid adhering to the workpiece w becomes water mist and scatters around.
(2) The case where the water mist is generated in (1) is the case of the first collecting means 15 together with the surrounding air from the hood 13 by the negative pressure action caused by the operation of the two-chamber roots blower 65 of the mist collecting apparatus 10A. 16 is sucked into.
(3) The air sucked into the case 16 is reduced in flow rate by the cyclone 18, and a relatively heavy mist contained in the air is separated. The air that has passed through the cyclone 18 is sucked into the case 46 of the second collection means 45.
(4) The fine water mist of 100 angstrom class in the air sucked into the case 46 is removed by the demister member 55, and the purified air passing through the demister member 55 is a two-chamber roots type. It is guided to a common suction port 66 of the blower 65. The water mist collected by the second collecting means 45 is accumulated in the drain tank 53.
(5) The pressure air sucked from the common suction port 66 of the two-chamber roots type blower 65 and discharged from the discharge port 67a of one chamber P is supplied to the nozzle 8 for performing air blowing through the air supply pipe 68. The In the drying chamber 7, the cleaning liquid or the like adhering to the work w is removed by being blown away by the pressure air ejected from the nozzle 8, and the surface of the workpiece w is automatically cleaned and dried.
(6) Further, the pressure air discharged from the discharge port 67b of the other chamber V is discharged from the discharge pipe 71 to the atmosphere.

  10 A of mist collection apparatuses in the washing | cleaning apparatus of 1st Embodiment mentioned above are set as the structure suitable when the usage-amount of a water-soluble washing | cleaning liquid is 10-30 liters per minute (invention of Claim 1). The collection rate of mist is about 95%.

(Embodiment 2)
As shown in FIG. 6, the mist collecting device 10B in the cleaning device of the second embodiment is configured such that the mist collecting device 10A in the cleaning device of the first embodiment described above is configured except for the first collecting means 25. The configuration is the same as in FIG. Therefore, about the same component as that, the code | symbol used for description of 10 A of the mist collection apparatuses is diverted, it describes in drawing, and description is abbreviate | omitted.

  In FIG. 7, a cylindrical tank 26 of the first collecting means 25 is provided vertically, and the inside is partitioned into an upper introduction chamber 27a and a lower separation chamber 27b. A suction port 28 connected to the suction pipe 11 communicating with the cleaning chamber 1 is provided in the body portion of the introduction chamber 27a, and a lid 29 is attached to the upper port of the introduction chamber 27a.

  In the central portion of the introduction chamber 27a, a main shaft 31 is provided so as to be supported vertically by a bearing member 30 attached to the lower surface of the lid 29. The main shaft 31 has a structure that also serves as an output shaft of the motor device 32 installed on the lid 29. On the front end side of the main shaft 31, a disc-shaped rotating brush 33 is inserted, and then a turn-off plate-shaped swing-off member 34 is fitted and fixed. The swing-off member 34 is provided in order to make the water mist easily adhere to the inner surface of the tank 26.

  A cyclone 36 is provided at the center of the separation chamber 27b so as to expand downward in a trumpet shape. Reference numeral 37 denotes a spiral fin provided symmetrically at two locations along the outer periphery of the cyclone 36 whose diameter has been expanded. The fins 37 are provided to make it easier for the water mist to adhere to the inner surface of the tank 26 by the rotational action of the air flowing into the separation chamber 27b.

  A spiral fin 38 is provided between the disk-type rotating brush 33 and the cyclone 36 so as to be along the inside of the tank 26. The fins 38 are provided with a length that is about half of the inner circumferential length of the tank 26.

An inlet 47 of the second collecting means 45 is connected to the exhaust port 36 a of the cyclone 36 via an intermediate pipe 39. Reference numeral 40 denotes a check valve interposed in the intermediate pipe 39. Further, an interference member 35 is provided below the inside of the tank 26 to prevent a tornado-like air flow from being generated near the bottom 26a. 42 is a drain tank connected to a drain port 41 provided in the tank 26, and 43 is a drain cock.
The first collection means 25 is configured as described above.

  Accordingly, the air containing the water mist in the cleaning chamber 1 and the drying chamber 7 is sucked by the operation of the two-chamber roots blower 65, and the mist in the air is collected by the first collecting means 25 and the second collecting means 45. The workpiece w is cleaned and dried by ejecting from the nozzle 8 of the drying chamber 7 pressure air that is collected by the blower 65 and discharged from the discharge port 67a of the one chamber P through the common suction port 66 of the blower 65. A mist collecting device 10B in the cleaning device of the second embodiment that can be applied is configured.

Next, the operation of the mist collecting device 10B in the cleaning device of the second embodiment will be described.
(1) In the substantially sealed cleaning chamber 1 of the cleaning apparatus C, a water-soluble cleaning liquid is sprayed from the nozzle 4 onto the workpiece w. Next, in the drying chamber 7, drying is performed by blowing pressure air generated by the two-chamber roots type blower 65 from the nozzle 8 to the work w. At this time, the water-soluble cleaning liquid adhering to the workpiece w becomes water mist and scatters around.
(2) The water mist generated in (1) is the tank of the first collecting means 25 together with the surrounding air from the hood 13 due to the negative pressure action caused by the operation of the two-chamber roots blower 65 of the mist collecting device 10B. 26 is sucked into.
(3) In the first collecting means 25, the disk-type rotary brush 33 is rotated by the motor device 32 at a rotation speed within a range of 100 to 1000 rotations per minute. The air sucked into the introduction chamber 27a is made to strike the inner surface of the tank 26 by the centrifugal force action of the rotating brush 33 and the swing-off member 34, and the water mist is separated from the air and falls.
(4) Next, the air that has flowed into the separation chamber 27 b is once reduced in flow velocity by the cyclone 36 and flows out from the exhaust port 36 a, and the air that has passed through the cyclone 36 is sucked into the case 46 of the second collecting means 45. It is. The separated water mist collects in the lower part of the separation chamber 27b and is discharged to the outside by opening the drain cock 43 in a timely manner.
(5) Fine water mist of 100 angstrom class in the air sucked into the case 46 of the second collecting means 45 is removed by the demister member 55, and the air purified by passing through the demister member 55 Is guided to the common suction port 66 of the two-chamber roots blower 65. The water mist collected by the second collecting means 45 is accumulated in the drain tank 53.
(6) The pressure air sucked from the common suction port 66 of the two-chamber type Roots type blower 65 and discharged from the discharge port 67a of one chamber P is supplied to the nozzle 8 for air blowing through the air supply pipe 68. The In the drying chamber 7, the cleaning liquid or the like adhering to the work w is removed by being blown away by the pressure air ejected from the nozzle 8, and the surface of the workpiece w is automatically cleaned and dried.
(7) Further, the pressure air discharged from the discharge port 67b of the other chamber V is discharged from the discharge pipe 71 to the atmosphere.

  The mist collecting device 10B in the cleaning device of the second embodiment described above has a structure suitable when the amount of water-soluble cleaning liquid used is 50 to 100 liters per minute (invention of claim 2). The collection rate of mist by this mist collection device is about 90%.

  As described above, the mist collecting device in the cleaning apparatus can collect water mist generated in the cleaning chamber and the drying chamber, particularly fine water mist of 100 angstrom class, with high efficiency. Furthermore, there exists an advantage which can clean and dry a workpiece | work using the pressure air discharged | emitted from a roots type blower in a drying chamber.

Schematic diagram of the mist collecting device in the cleaning device of the first embodiment. Explanatory drawing which showed the structure of the principal part of this invention typically Explanatory drawing of the second collecting means Illustration of demister member Explanatory drawing of demister member of other forms Schematic diagram of the mist collecting device in the cleaning device of the second embodiment. Explanatory drawing of the 1st collection means of 2nd Embodiment

Explanation of symbols

C ... Cleaning device 1 ... Cleaning room 7 ... Drying room w ... Workpiece (workpiece)
8 ... Nozzle (for air blow)
10A: Mist collection device 11 of first embodiment example ... Suction pipe 15 ... First collection means 45 ... Second collection means 55 ... Demister member 56 ... Denishi non-woven fabric Piece 57 ... Reinforcement plate 65 ... Two-chamber Roots-type blower 66 ... Common suction port P ... One chamber V ... The other chamber 68 ... Air supply pipe 10B ... No. 2. Mist collection device 25 of first embodiment ... First collection means 26 ... Tank 32 ... Motor device 33 ... Rotary brush 36 ... Cyclone

Claims (4)

In the mist collecting device provided to collect the mist generated from the cleaning liquid at the time of cleaning the workpiece performed in a substantially sealed cleaning chamber of the cleaning device,
A cyclone formed so as to expand downward in a trumpet shape is disposed in the suction pipe provided to communicate with the cleaning chamber, and the flow rate of air flowing into the case is determined by the cyclone. A first collecting means provided to lower and exhaust, and a demister member having a multi-layer structure with a mesh-like reinforcing plate interposed between the electric stone non-woven piece and the electric stone non-woven piece and mounted in the case A second collection means provided so as to pass air to be filtered along the surface direction of the demister member, and a common suction port in which the suction ports of the two-chamber roots type blower are combined into one in order, The discharge port of one chamber of the blower is connected to a nozzle provided in the cleaning device in order to air blow the workpiece, and is discharged from the discharge port of the other chamber. The air is discharged to the atmosphere, and the air containing the mist in the cleaning chamber is sucked by the operation of the roots blower, and the mist in the air is collected by the first collecting means and the second collecting means. The workpiece can be cleaned and dried by ejecting the pressure air that is guided to the common suction port of the Roots-type blower and discharged from the discharge port of the one chamber from the nozzle. The mist collection apparatus in the washing | cleaning apparatus characterized by the above-mentioned. In the mist collecting device provided to collect the mist generated from the cleaning liquid at the time of cleaning the workpiece performed in a substantially sealed cleaning chamber of the cleaning device,
A main shaft driven and rotated by a motor device is vertically provided in a suction pipe provided so as to communicate with the cleaning chamber, and a disc-shaped rotary brush and a plate-shaped swing-off member are provided on the main shaft. Are attached in order and fixed, and between the first collection means provided with a cyclone formed so as to expand in a trumpet shape toward the bottom, in the lower part of the tank, A second collecting means provided in such a manner that a demister member having a multilayer structure with a mesh-like reinforcing plate interposed in the case is mounted in the case and air to be filtered is passed along the surface direction of the demister member; Connected to a common suction port that combines the suction ports of the chamber-type Roots-type blower into one, and the discharge port of one chamber of the blower is provided in the cleaning device in order to air blow the workpiece. No The air is discharged from the discharge port of the other chamber to the atmosphere, and the air containing the mist in the cleaning chamber is sucked by the operation of the roots blower. The mist in the air is collected by the first collecting means and the second collecting means, and the pressure air led to the common suction port of the Roots-type blower and discharged from the discharge port of the one chamber is A mist collecting device in a cleaning device, characterized in that the workpiece can be cleaned and dried by being ejected from a nozzle.   The demister member of the second collecting means has a multilayer structure in which the reinforcing plate is interposed between the rectangular electric stone nonwoven fabric piece and the electric stone nonwoven fabric piece, and the electric stone nonwoven fabric piece and the reinforcing plate are brought into close contact with each other. The mist collecting device in the cleaning device according to claim 1, wherein the mist collecting device is attached to the case in a state. The demister member of the second collecting means has a multilayer structure in which the reinforcing plate is interposed between bent pieces of bentonite non-woven pieces formed by zigzag bending, and the bentonite non-woven fabrics. The mist collecting device in the cleaning device according to claim 1, wherein the mist collecting device is attached to the case in a state where the piece and the reinforcing plate are in close contact with each other.

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