JP4118851B2 - Mist and dust collector - Google Patents

Description

The present invention relates to a collection device that collects mist generated in a washing machine for machine parts and the like, water-soluble oil mist generated in a metal processing machine / polishing machine, mineral light oil mist, and the like .

  Conventional mist collection / recovery devices of various structures such as a filter system, a demister system, a cyclone system, a collision plate system, and an electric dust collection system are known. Specifically, Japanese Patent Application Laid-Open No. 11-179122 discloses an intake unit that sucks gas contaminated with oil mist, and a capture unit that captures oil mist from the gas sucked from the intake unit with a porous filter, An oil mist collecting device is disclosed that includes an oil storage part that stores an aggregate of oil mist captured by the capturing part and an exhaust part 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.

  In Japanese Patent Laid-Open No. 9-47617, a collection plate having a porous material layer provided on the surface on which mist collides is provided in the collection chamber, and the mist-containing air guided to the collection chamber collides with the collection plate. A mist removing device that collects mist is disclosed.

  Further, Japanese Patent No. 28888684 discloses that in a path for exhausting high-temperature exhaust gas to the outside air, the exhaust gas is brought into contact with water circulating in the sealed chamber, and the temperature of the exhaust gas decreases due to the heat of vaporization. A method for cooling and purifying combustion exhaust gas in which solid particles such as carbon powder in the gas and harmful components such as carbon monoxide are decomposed and adsorbed on water is disclosed.

As described in the above-mentioned patent publications, mist has various properties such as water mist, oil mist, coarse mist (particle size: about 20 μm or more) and fine mist (particle size). : About 1 to 0.01 μm or less). For this reason, the collection / recovery system as described above is employed corresponding to the type of mist. In any case, if the generated mists are not processed efficiently, the working environment will be comfortable, the health of the workers will be safe, the processing machines and equipment that generate the mist will operate normally, and the surrounding buildings It can be said that it is difficult to prevent contamination.
Japanese Patent Laid-Open No. 11-179122 JP 2000-296305 A Japanese Patent Laid-Open No. 11-19775 Japanese Patent Laid-Open No. 9-47617 Japanese Patent No. 28888684 Utility Model Registration No. 3093342

An object of the present invention is to provide a mist and dust collection device that can cope with the collection of mist of various properties and can be manufactured at low cost.

In order to achieve the above object, the invention described in claim 1 includes a collection unit that collects mist and dust, a separation tank that separates mist and dust in the air sucked from the collection unit, and In the mist and dust collecting device composed of suction means connected to the exhaust side of the separation tank,
For the separation tank, a main shaft driven and rotated by a motor device is provided vertically above the central portion of the tank, and at least one disk-type rotating brush in which a large number of brush pieces project radially from the fixed portion; A downward swinging member is attached to the main shaft in order and fixed, and an annular partition plate having an opening formed in the center is provided in the tank, and the rotating brush is brought close to the downstream side of the partition plate. A trumpet-shaped member is formed below the tank so as to expand toward the bottom, and the bottom is made to face the suction port of the trumpet-shaped member to suppress the generation of a local vacuum. it is provided an interference plate, draws air sucked from the collecting unit by the operation of the connected the suction means on the exhaust side of the trumpet-shaped member into the separation tank, the motor device Mist and dust is separated by lowering effects of air velocity in the trumpet-shaped member with separating banged swing mist and dust in the air by the centrifugal force acting member for shaking and rotating brush to more rotary actuated, is their separation It is configured to store mist and dust in the lower part of the separation tank.

In order to achieve the same object, the invention described in claim 2 includes a collection unit that collects mist and dust, a separation tank that separates mist and dust in the air sucked from the collection unit, and In the mist and dust collecting device composed of suction means connected to the exhaust side of the separation tank,
For the separation tank, a main shaft driven and rotated by a motor device is provided vertically above the central portion of the tank, and at least one disk-type rotating brush in which a large number of brush pieces project radially from the fixed portion; A downward swinging member is attached to the main shaft in order and fixed, and an annular partition plate having an opening at the center is provided in the tank, and the rotating brush is brought close to the downstream side of the partition plate. A trumpet-shaped member formed so as to expand toward the bottom, and a spiral fin is provided along the outer peripheral portion of the trumpet-shaped member whose diameter is increased. the bottom, its is opposed to the suction port of the trumpet-shaped member to become disposed to suppress interference plate occurrence of local vacuum, the helical fins between its flared member and the disc-shaped rotary brush those Be provided along the inner periphery of the tank, the suction air is sucked from the collecting unit by the operation of the connected suction means on the exhaust side of the trumpet-shaped member into the separation tank, rotated by the motor device The mist and dust in the air are shaken and separated by the centrifugal force action of the rotating brush and the swing-off member , and the mist and dust are separated by the air flow rate lowering action of the trumpet member , and the separated mist and It is configured to store dust in the lower part of the separation tank.

In order to achieve the same object, the invention described in claim 3 includes a collection unit that collects mist and dust, a separation tank that separates mist and dust in the air sucked from the collection unit, and In the mist and dust collecting device composed of the suction means connected to the exhaust side of the separation tank,
The separation tank is formed in a substantially inverted L-shape with the upper portion disposed sideways, and a main shaft driven and rotated by a motor device is provided in the upper portion in the horizontal direction, and a large number of brush pieces are radially arranged on the fixed portion. At least one disk-shaped rotating brush and a downward swing-off member are sequentially attached and fixed to the main shaft, and an annular partition plate having an opening at the center is provided in the upper portion and The rotating brush is arranged close to the downstream side of the partition plate, and a trumpet-shaped member formed so as to expand toward the bottom is provided below the vertical portion of the tank. to face the suction port of the trumpet-shaped member made by providing a suppressing interference plate occurrence of local vacuum, air is sucked from the collecting unit by the operation of the connected the suction means on the exhaust side of the trumpet-shaped member Suction in the separation tank, the mist by lowering effects of air velocity in the trumpet-shaped member with separating banged swing mist and dust in the air by the centrifugal force acting member for shaking and rotating brush which rotates actuated by the motor device And the dust is separated, and the separated mist and dust are stored in the lower part of the separation tank.

  In order to achieve the same object, the invention described in claim 4 is the mist and dust collecting device according to any one of claims 1 to 3, wherein a nozzle of a water injection device is arranged in the separation tank. The water injection device is operated automatically or manually so that the cooling water or the cleaning liquid ejected from the nozzle is sprayed onto the disk-type rotating brush.

  In order to achieve the same object, the invention described in claim 5 is the mist and dust collecting device according to any one of claim 1, claim 3 or claim 4, wherein the disk-type rotary brush is In the case of being attached to the main shaft at a predetermined interval, the partition plate is disposed so as to intervene in the space between the disk-type rotary brush and the disk-type rotary brush.

(Invention of Claim 1)
This mist and dust collection device has a structure that supports the collection and collection of water mist and cleaning liquid mist generated in washing machines such as machine parts. The mist and dust can be separated and collected efficiently by the synergistic action of the swing-off action by the centrifugal force of the member , the air flow rate reduction action by the trumpet-shaped member and the suction action by the suction means, and manufactured at low cost. Is possible.

(Invention of Claim 2)
This mist and dust collecting device is equivalent to the invention of claim 1 and has a structure suitable for collecting and collecting a large amount of mist and dust generated in a washing machine for machine parts and the like. Since the mist and dust easily adhere to the inner surface of the separation tank by the rotating action of the generated air flow, the separation and collection efficiency is improved.

(Invention of Claim 3)
This mist and dust collecting device is suitable for the case where the installation space is small because the upper part of the separation tank is arranged sideways and is formed in a substantially inverted L shape by forming it in a substantially inverted L shape. is there.

(Invention of Claim 4)
This mist and dust collecting device has a structure in which cooling water or cleaning liquid is sprayed from the inlet side of the disk-type rotating brush by a water injection device, and the mist and dust adhering to the rotating brush are removed by the cooling water or cleaning liquid. Since the temperature of the air flowing into the separation tank is lowered, the collection efficiency of mist and dust is improved.

(Invention of Claim 5)
This mist and dust collection device separates and collects mist and dust by guiding air sucked from the collection part toward the center of the disk-type rotary brush by partition plates provided in a plurality of stages. Efficiency is improved.

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 and dust collecting device A of the first embodiment, FIG. 2 is a plan view of a disk-type rotating brush, and FIG. 3 is an explanatory view of a washing machine to which the mist and dust collecting device A is applied. FIG. 4 is a schematic diagram of the mist and dust collection device B of the second embodiment, FIG. 5 is an explanatory diagram of a metal processing machine to which the mist and dust collection device B is applied, and FIG. 6 is a diagram of the third embodiment. It is a schematic diagram of mist and dust collection device C.

(Example 1)
The mist and dust collection device A of the first embodiment shown in FIG. 1 has a structure corresponding to the collection / recovery of water-soluble oil mist, water mist, and cleaning liquid mist generated in washing machines / processing machines such as machine parts. It is said that. The general configuration of the collection device A includes a collection unit 1 that collects mist and dust, a separation tank 10, and a turbo fan 33 as a suction unit. The collection part 1 is integrally provided with a hose 3 in a collection port 2 having a hood shape with an open bottom.

A cylindrical tank body 11 of the separation tank 10 is provided vertically by support legs 12, and the inside is partitioned into an upper introduction chamber 13 and a lower separation chamber 15. The introduction chamber 13 and the separation chamber 15 are connected via an intermediate cylinder 16 so that they can be separated by removing a set bolt 18. In the middle cylinder 16, an opening 17 a having a size slightly smaller than the outer diameter of the disk-type rotary brush 25 is formed in the center in order to allow air sucked into the introduction chamber 13 to flow toward the center. The annular partition plates 17 are arranged at three locations at predetermined intervals. A suction port 14 is provided in the body portion of the introduction chamber 13, and a lid 19 is attached to the upper mouth of the introduction chamber 13. The hose 3 is connected to the suction port 14.

  The introduction chamber 13, the separation chamber 15, and the intermediate cylinder 16 of the tank main body 11 may have a half-type structure.

  At the center of the introduction chamber 13, a main shaft 21 is inserted into a bearing member 20 attached to the lower surface of the lid 19 so that the main shaft 21 is supported vertically. The main shaft 21 has a structure that also serves as an output shaft of the motor device 22 installed on the lid 19. Two disk-type rotary brushes 25 and a spacer 28 are inserted in order from the back into the front end side 21a of the main shaft 21, and the sixth disk-type rotary brush 25 is directed downwardly through a washer 29 to a screw shaft 21b. Are fixed by tightening a nut 31 screwed onto the screw shaft 21b. The swing-off member 30 is provided so that the mist and dust can be easily shaken off and adhered to the inner surface of the tank body 11 by the centrifugal force action when rotating by the motor device 22.

  In FIG. 2, the disk-type rotating brush 25 has a large number of brush pieces 27 projecting radially on the outer periphery of a fixed portion 26 in which a shaft hole 25a for mounting on the main shaft 21 is formed. The thickness is 250 mm and the thickness is about 30 mm. For the brush piece 27, hard steel or stainless steel having a wire diameter of about 0.3 mm and a length of about 60 mm is used.

A trumpet-shaped member 32 is provided at the center of the separation chamber 15 so as to expand downward.

Further, the bottom portion of the tank body 11, in order to suppress the local vacuum by eddy flow generated in the vicinity of the suction port 32a of the trumpet-shaped member 32, provided with a circular interference plate 11c so as to face the suction port 32a Yes. The interference plate 11c is disposed slightly above the bottom by the leg piece 11d.

As shown in FIG. 1, a suction pipe 33 a of a turbo fan 33 is connected to the exhaust port 32 b of the trumpet member 32. Reference numeral 34 denotes a drive motor for the turbo fan 33. Reference numeral 35 denotes a demister device attached to the exhaust pipe 33 b of the turbofan 33. The mist and dust finally removed by the demister device 35 are provided so that they can be discharged from the drain pipe 36 to the outside in a timely manner.

  In addition, a nozzle 40 of a discharge pipe 39 of the water injection device 38 is disposed above the introduction chamber 13. Then, the water injection device 38 is operated automatically or manually and sprays the cooling water or the cleaning liquid ejected from the nozzle 40 onto the brush piece 27 of the disk-type rotary brush 25, thereby attaching mist and dust to the rotary brush 25 and separating them. -It is provided so as to promote the removal and to reduce the temperature of the air flowing into the introduction chamber 13.

41 is a discharge pipe for discharging the separation liquid of mist stored in the lower part of the separation chamber 15 to the outside, and 42 is a drain cock provided in the discharge pipe 41.
The mist and dust collection device A of the first embodiment is configured as described above.

Next, the operation when the mist and dust collecting device A of the first embodiment is applied to the washing machine f shown in FIG. 3 will be described.
(1) In the shower chamber of the cleaning machine f, the cleaning liquid in the cleaning liquid tank g is sucked by a pump h provided with a heater and sprayed from the shower nozzle i to the workpiece w. Next, the workpiece w is dried by blowing compressed air from the nozzle j of the air blowing means to the workpiece w in the drying chamber of the washing machine f. At this time, the cleaning liquid adhering to the workpiece w becomes mist and scatters around.
(2) The mist generated in (1) due to the negative pressure action caused by the operation of the collection device A is sucked into the introduction chamber 13 of the separation tank 10 together with the surrounding air from the collection unit 1.
(3) In the separation tank 10, the disk-type rotating brush 25 is rotated by the motor device 22 at a rotation speed within a range of 100 to 1000 rotations per minute. The air sucked into the introduction chamber 13 flows toward the center of the disk-type rotary brush 25 by the partition plate 17 and is struck against the inner surface of the tank body 11 by the centrifugal force action of the rotary brush 25 and the swing-off member 30. The mist is separated and descends.
(4) Then, the air that has flowed into the separation chamber 15, once the flow rate decreases the flows from the exhaust port 32b by trumpet-shaped member 32. In the vicinity of the suction port 32a of the trumpet member 32, a local vacuum is generated due to eddy currents. However, the interference plate 11c prevents the mist and dust from flowing into the trumpet member 32 as much as possible. The
(5) The mist separated from the sucked air is accumulated in the lower part of the separation chamber 15 and is recirculated to the cleaning liquid tank g by opening the drain cock 42 in a timely manner.
(6) The dried air flowing out from the separation chamber 15 is discharged from the turbo fan 33 to the atmosphere side through the demister device 35.

(Example 2)
Collecting device B mist and dust of the second embodiment shown in FIG. 4, the cleaning machine such as machine parts, water mist generated in the cutting machine and the like, water-soluble oil mist, soft oil mist, for collecting dust It has a corresponding structure.
Since this collection device B has basically the same structure as the mist and dust collection device A of the first embodiment, the same reference numerals used in the description of the collection device A are used for the same components. It will be diverted and described in the drawings, and the specific components of the collection device B will be described.

  A partition plate 17 is provided at the upper opening of the intermediate body 16 of the separation tank 10. The partition plate 17 is formed with an opening 17 a having a size slightly smaller than the outer diameter of the disk-type rotary brush 25.

  Ten disc-shaped rotary brushes 25 are inserted into the front end 21a of the main shaft 21 in order, and then a downward swing-off member 30 is fitted through a washer 29, and a nut 31 screwed into the screw shaft 21b is tightened. To fix them.

Reference numeral 45 denotes spiral fins provided symmetrically at two locations along the outer peripheral portion of the trumpet-shaped member 32 whose diameter is increased. The fins 45 are provided to make it easier for mist and dust to adhere to the inner surface of the tank body 11 by the rotational action of the air flowing into the separation chamber 15.

A spiral fin 46 is provided along the inner side of the tank body 11 between the disk-type rotary brush 25 located at the lowermost part of the disk-type rotary brush 25 and the trumpet-shaped member 32. The fins 46 are provided with a length that is about half of the inner peripheral length of the tank body 11.

About the discharge pipe provided in the lower part of the tank main body 11, in order to prevent air from flowing back into the separation tank 10 from a discharge end, it can also be set as the trap-type piping 47 shown in FIG. A discharge pipe 49 is connected to the pipe 47 via a drain cock 48.
Thus, the mist and dust collecting device B of the second embodiment is configured.

  The mist and dust collecting device B of the second embodiment is applied to the metal working machine shown in FIG. The collection device B is installed for collecting and collecting water-soluble oil mist generated in the metal processing machine m, and the collection port 2 is arranged above the processing part of the metal processing machine m.

  In the metal working machine m, when the workpiece w is cut by the cutting tool n, the oil-mixed cutting fluid is sprayed from the flushing nozzle o toward the workpiece w. As a result, the oil-mixed cutting fluid becomes water-soluble oil mist and scatters around. The water-soluble oil mist is collected and collected by the collection device B. However, the operation of the collection device B conforms to the case of the mist and dust collection device A of the first embodiment described above. Description is omitted.

(Example 3)
The mist and dust collection device C of the third embodiment shown in FIG. 6 is a water mist, water-soluble oil mist, soft oil mist collection / recovery generated in a washing machine for machine parts, a cutting machine, etc. It has a structure that supports dust collection and recovery.
Since this collection device C has basically the same structure as the mist and dust collection device A of the first embodiment, the same reference numerals used in the description of the collection device A are used for the same components. Then, it will be described in the drawings, and the specific components of the collection device C will be described.

  As shown in FIG. 6, the separation tank 10 is formed in a substantially inverted L shape with an introduction chamber 13 and an intermediate cylinder 16, which are upper portions of the tank main body 11, arranged laterally. In addition, a disk-type rotary brush 25 and a swing-off member 30 are sequentially attached to the main shaft 21 provided in the horizontal direction, as in the first embodiment.

The trumpet-shaped member 32 is provided in the vertical portion 11 a of the tank body 11, and a suction pipe 33 a of the turbo fan 33 is connected to a linear exhaust port 32 b extending above the trumpet-shaped member 32.

As in the second embodiment, a discharge pipe 53 is connected to a trap-type pipe 51 via a drain cock 52 at the lower part of the tank body 11.
Thus, the mist and dust collecting device C of the third embodiment is configured.

  Since the operation of the collecting device C is the same as that of the mist and dust collecting device A of the first embodiment described above, the description thereof is omitted.

As described above, this mist and dust collection device has a structure capable of collecting and collecting mist and dust of various properties such as water mist, cleaning liquid mist, water-soluble oil mist, etc. There is an advantage that mist and dust can be efficiently separated and collected by a synergistic effect of the centrifugal force action of the disk-type rotating brush and the action of the trumpet-shaped member .

Schematic diagram of mist and dust collecting device A of the first embodiment Plan view of disk-type rotating brush Explanatory drawing of a washing machine to which mist and dust collection device A is applied Schematic diagram of mist and dust collector B of the second embodiment Explanatory drawing of the metal processing machine which applies the mist and dust collection device B Schematic diagram of mist and dust collector C of the third embodiment

Explanation of symbols

A: Mist and dust collecting device (first embodiment)
DESCRIPTION OF SYMBOLS 1 ... Collection part 10 ... Separation tank 17 ... Partition plate 21 ... Main shaft 22 ... Motor apparatus 25 ... Disk type rotary brush 30 ... Shaking off member 32 ... Trumpet Shape member 33 ... turbo fan (suction means)
38 ... Water injection device 40 ... Nozzle B ... Mist and dust collecting device (second embodiment)
45, 46 ... Spiral fin C ... Mist and dust collecting device (third embodiment)

Claims (5)

Consists of a collection unit for collecting mist and dust, a separation tank for separating mist and dust in the air sucked from the collection unit, and suction means connected to the exhaust side of the separation tank. In the mist and dust collector,
For the separation tank, a main shaft driven and rotated by a motor device is provided vertically above the central portion of the tank, and at least one disk-type rotating brush in which a large number of brush pieces project radially from the fixed portion; A swing-off member is attached to the main shaft in order and fixed, and an annular partition plate with an opening formed in the center is provided in the tank, and the rotating brush is disposed close to the downstream side of the partition plate. In addition, a trumpet-shaped member formed so as to expand toward the bottom is provided in the lower part of the tank, and further, an interference plate that suppresses the generation of a local vacuum by facing the suction port of the trumpet-shaped member on the bottom. Provided,
Centrifugal force of a rotating brush and a swing-off member that is rotated by the motor device by sucking air sucked into the separation tank by operation of the suction means connected to the exhaust side of the trumpet member The mist and dust in the air are shaken and separated by the action, and the mist and dust are separated by the air flow rate lowering action of the trumpet type member , and the separated mist and dust are stored in the lower part of the separation tank. A device for collecting mist and dust, characterized by comprising. Consists of a collection unit for collecting mist and dust, a separation tank for separating mist and dust in the air sucked from the collection unit, and suction means connected to the exhaust side of the separation tank. In the mist and dust collector,
For the separation tank, a main shaft driven and rotated by a motor device is provided vertically above the central portion of the tank, and at least one disk-type rotating brush in which a large number of brush pieces project radially from the fixed portion; A swing-off member is attached to the main shaft in order and fixed, and an annular partition plate with an opening formed in the center is provided in the tank, and the rotating brush is disposed close to the downstream side of the partition plate. A trumpet-shaped member formed so as to expand toward the bottom is provided below the tank, and a spiral fin is provided along the outer periphery of the trumpet-shaped member whose diameter is increased. , the tank helical fins between its is opposed to the suction port of the trumpet-shaped member made by providing a suppressing interference plate occurrence of local vacuum, the disc-type rotary brush and its flared member Be provided along the inner circumference,
Centrifugal force action of a rotary brush and a swing-off member which is rotated by the motor device by sucking air sucked into the separation tank by operation of suction means connected to an exhaust side of the trumpet member The mist and dust in the air are separated by shaking, and the mist and dust are separated by the air flow rate lowering action of the trumpet-shaped member , and the separated mist and dust are stored in the lower part of the separation tank. A device for collecting mist and dust. Consists of a collection unit for collecting mist and dust, a separation tank for separating mist and dust in the air sucked from the collection unit, and suction means connected to the exhaust side of the separation tank. In the mist and dust collector,
The separation tank is formed in a substantially inverted L-shape with the upper portion disposed sideways, and a main shaft driven and rotated by a motor device is provided in the upper portion in the horizontal direction, and a large number of brush pieces are radially arranged on the fixed portion. At least one disk-shaped rotating brush and a swing-off member that are provided in a projecting manner are attached to the main shaft in order and fixed, and an annular partition plate having an opening at the center is provided in the upper portion, and the partition plate The trumpet-shaped member is arranged on the downstream side of the tank so as to be close to the tank, and is formed in the vertical portion of the tank so as to expand toward the bottom . Further, the trumpet-shaped member is formed on the bottom. An interference plate that suppresses the generation of local vacuum by facing the suction port of the member is provided,
Centrifugal force of a rotating brush and a swing-off member that is rotated by the motor device by sucking air sucked into the separation tank by operation of the suction means connected to the exhaust side of the trumpet member The mist and dust in the air are shaken and separated by the action, and the mist and dust are separated by the air flow rate lowering action of the trumpet type member , and the separated mist and dust are stored in the lower part of the separation tank. A device for collecting mist and dust, characterized by comprising.   A nozzle of a water injection device is disposed in the separation tank, and the water injection device is operated automatically or manually so as to spray cooling water or cleaning liquid ejected from the nozzle onto the disk-type rotating brush. The mist and dust collection device according to any one of claims 1 to 3.   When the disk-type rotary brush is attached to the main shaft at a predetermined interval, the partition plate is disposed so as to intervene in the space between the disk-type rotary brush and the disk-type rotary brush. The mist and dust collecting device according to any one of claims 1, 3, and 4.

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