JP2006175319A - Small-sized collector of mist, dust or the like - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a small-sized collector which has a compact structure capable of responding to the collection and recovery of mist, dust or the like having various properties and can be manufactured at a low cost. <P>SOLUTION: A separation tank 1 for separating mist, dust or the like in sucked air is provided so as to drive and rotate a main shaft (output shaft) 13a by a motor 11, a disc-shaped rotary brush 18 and a flat shake-off member 25 are attached to the main shaft 13a, the rotary brush 18 is arranged so as to be brought into close contact with the partition wall plate 6 provided in a tank main body 2, the water injection device, of which the nozzle 31 is arranged in the tank main body 2, is operated automatically or manually to spray the cooling water or washing liquid ejected from the nozzle 31 on the rotary brush 18, the impeller 29 attached to the output shaft of the motor 11 is arranged in the casing 15 connected to the lower part of the separation tank 1 and the mist, dust or the like in the air sucked by operating the motor 11 is separated in the separation tank 1. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a small collection device for separating and removing mist generated in a washing machine for machine parts, water-soluble oil mist generated in a metal processing machine / polishing machine, mist such as mineral light oil mist, and fine dusts. About.

  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. 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 trapped by a gas and an exhaust that discharges gas from which oil mist has been removed.

  In JP 2000-296305 A, a permeable member is provided at the entrance of a hood disposed above the mist generating unit, 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 a liquefied material is disclosed.

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

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

In order to achieve the above object, the invention described in claim 1 is composed of a separation tank for separating mist and dust in the air sucked from the suction port, and suction means connected to the separation tank. Mist / dust collection device,
For the separation tank, a main shaft vertically arranged at the center in the vertical tank body is driven and rotated by a motor device built in the tank body, and a large number of brush pieces are radially arranged on the fixed part. At least one disk-shaped rotating brush and a substantially flat-shaped swing-off member are attached to the main shaft in order from the top and fixed, and an annular partition plate having an opening at the center is formed in the tank body. And a disk-type rotary brush placed close to the partition plate, a nozzle of the water injection device is arranged on the suction port side in the tank body, and the water injection device is operated automatically or manually to eject from the nozzle The cooling water or the cleaning liquid is sprayed onto the disk-type rotating brush, and is attached to the output shaft of the motor device in a casing connected to the lower part of the separation tank. An impeller is arranged, and the mist and dust in the air sucked by the operation of the motor device are separated in the separation tank, and the separated mist and dust are stored in the lower part of the separation tank. It is characterized by that.

  In order to achieve the same object, the invention described in claim 2 is the small mist / dust collecting apparatus according to claim 1, wherein the separation tank and the casing are disposed sideways and the main shaft is horizontally disposed. It is characterized by having arranged so that it may be arrange | positioned.

  In order to achieve the same object, the invention described in claim 3 is the mist / dust collecting apparatus according to claim 1 or 2, wherein the main shaft is a part of the output shaft of the motor device. It is characterized by that.

(Invention of Claims 1 and 3)
This small mist / dust collection device has a compact structure that supports the collection and collection of water mist and cleaning liquid mist generated in washing machines such as machine parts. The mists can be efficiently separated and collected by the synergistic action of the dropping action, the shaking action by the centrifugal force of the shaking member and the suction action by the suction means, and can be manufactured at low cost. In addition, since the cooling water or cleaning liquid of the water injection device is configured to be sprayed on the rotating brush, the mist and dust adhering to the brush are easily removed and the temperature of the air flowing into the separation tank is reduced. Mist / dust collection efficiency is significantly improved.

(Invention of Claim 2)
This small mist / dust collecting device is suitable when the installation space is small, since the separation tank and casing are arranged sideways to reduce the overall height.

  The best mode for carrying out the present invention will be described below with reference to the drawings. FIG. 1 is a schematic view of a small mist / dust collecting apparatus A according to the first embodiment, FIG. 2 is a plan view of a disk-type rotating brush, and FIG. 3 is a cleaning applying the small mist / dust collecting apparatus A. 4 is an explanatory view showing a case where the small mist / dust collecting device A is applied to an air blowing device, and FIG. 5 is an outline of the mist / dust small collecting device B of the second embodiment. FIG. 6 and FIG. 6 are explanatory views of a metal working machine to which the small mist / dust collecting device B is applied.

Example 1
1 for collecting and collecting water-soluble oil mist, water mist, cleaning liquid mist, etc. generated in cleaning machines and processing machines for machine parts and the like. It has a corresponding structure. The general configuration of the small collection device A includes a separation tank 1 and a turbo fan 10 as suction means.

  The tank body 2 of the separation tank 1 is formed in a vertically-oriented cylindrical shape, and is provided so that the introduction chamber 3 and the separation chamber 5 are connected in the vertical direction and are integrated by tightening with a set bolt 9. . The introduction chamber 3 has a dimension slightly smaller than the outer diameter dimension of the disk-type rotary brush 18 to be described later in order to allow the air sucked from the suction port 4 provided in the trunk part of the tank body 2 to flow toward the center part. An annular partition plate 6 having an opening 6a at the center is disposed at a predetermined interval. Reference numeral 7 denotes a lid attached to the upper opening of the introduction chamber 3. Note that the introduction chamber 3 and the separation chamber 5 of the tank main body 2 may have a halved structure.

  A motor device 11 having an output shaft 13 arranged vertically is built in the central portion of the separation chamber 5. The main body 12 of the motor device 11 is fixed on a pedestal 15 a located at the center of the casing 15 connected to the lower part of the separation tank 1. Further, the output shaft 13 is provided with a shaft portion 13a as a main shaft of the present invention extending above the main body portion 12 and a shaft portion 13b extending downward. Five disc-shaped rotary brushes 18 and spacers 23 are inserted into the shaft portion 13a in order from the back, and a substantially flat swing-off member 25 is fitted through the spacer 24 after the lowermost disc-type rotary brush 18, The bolts 26 screwed to the shaft portion 13a are tightened to fix them. The swing-off member 25 is provided to make it easier for mist and dust to adhere to the inner surface of the tank body 2. Reference numeral 27 denotes a rectifying member attached to the upper surface of the main body 12 of the motor device 11, and 28 denotes a partition member provided so as to be located outside the rectifying member 27 and outside the suction passage of the casing 15.

  In FIG. 2, the disk-type rotary brush 18 has a large number of brush pieces 21 radially projecting from the outer periphery of a fixed portion 19 in which a shaft hole 20 for mounting on the shaft portion 13a is formed. The thickness is about 250 mm and the thickness is about 30 mm. The brush piece 21 is made of hard steel or stainless steel having a wire diameter of about 0.3 mm and a length of about 60 mm.

  An impeller 29 is fixed to the shaft portion 13 b of the motor device 11. The turbofan 10 is configured by the motor device 11 and the impeller 29 housed in the casing 15.

  Above the introduction chamber 3, a nozzle 31 is disposed at the tip of a pipe 30 of a water injection device (not shown). Then, the water injection device is operated automatically or manually to spray cooling water or cleaning liquid ejected from the nozzle 31 onto the brush piece 21 of the disk-type rotary brush 18, thereby attaching mist and dust to the rotary brush 18. It is provided so that the separation and removal can be promoted and the temperature of the air flowing into the introduction chamber 3 can be lowered.

  An inlet pipe 33 a of the silencer 33 is attached to the exhaust port 15 b of the casing 15. 34 is a drain pipe for returning the drain accumulated in the silencer 33 to the bottom of the separation chamber 5. Reference numeral 35 denotes an installation leg provided outside the casing 15.

Reference numeral 36 denotes a discharge pipe for discharging the mist separation liquid stored in the lower part of the separation chamber 15 to the outside, and 37 denotes a drain cock provided in the discharge pipe 36.
As described above, the small mist / dust collecting apparatus A of the first embodiment is configured. As shown in FIG. 3, a duct 41 having a hood-shaped collection port 42 that opens downward is connected to the suction port 4.

Next, the operation when the small mist / 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 onto the workpiece w from the nozzle j of the air blowing means 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 small collection device A is sucked into the introduction chamber 3 of the separation tank 1 together with the surrounding air from the collection port 42.
(3) In the separation tank 1, the disk-type rotating brush 18 is rotated at 3000 to 3600 revolutions per minute by the motor device 11. Thus, the air sucked into the introduction chamber 3 flows toward the center of the disk-type rotary brush 18 by the partition plate 6 and is struck against the inner surface of the tank body 2 by the centrifugal force action of the rotary brush 18 and the swinging member 25. Thus, the mist is separated and descends.
(4) Next, the air that has flowed into the separation chamber 5 passes through the passage constituted by the rectifying member 27 and the partition member 28 and flows into the casing 15 while reducing the flow velocity.
(5) The mist separated from the sucked air is accumulated in the lower part of the separation chamber 5, and the drain cock 37 is opened in a timely manner to return to the cleaning liquid tank g.
(6) The dried air flowing out from the separation chamber 5 is discharged from the casing 15 through the silencer 33 to the atmosphere side.

  Moreover, the case where the small collection apparatus A of mist and dust of this invention is applied to the air blow apparatus 50 is shown in FIG. Dust such as abrasive debris adhering to the workpiece w is blown off by the pressurized air ejected from the nozzle 51 of the air blowing device 50, and the blown off dust is sucked into the separation tank 1 together with the surrounding air from the collection port 42. Separated from the air.

(Example 2)
The mist / dust small-sized collection device B of the second embodiment shown in FIG. 5 corresponds to the collection / recovery of water mist, water-soluble oil mist, soft oil mist, dust, etc. generated in a cutting machine or the like. It is structured.

  The collection device B is configured so that the separation tank 1 and the casing 15 are disposed sideways, but basically has the same structure as the small collection device A for mist and dust of the first embodiment. Therefore, about the same component, the code | symbol used for description of the collection apparatus A is diverted as it is in drawing, and detailed description is abbreviate | omitted.

  A pipe 38 is provided between the introduction chamber 3 and the separation chamber 5 in order to drain the mist liquid collected in the introduction chamber 3 into the separation chamber 5.

  The small mist / dust collecting device B of the second embodiment is applied to the metal working machine shown in FIG. This collection device B is installed for collecting and collecting water-soluble oil mist generated in the metal working machine m, and its collection port 42 is arranged above the processing part of the metal working 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 collecting device B. The operation of the collecting device B is the same as that of the small-sized mist / dust collecting device A of the first embodiment described above. Since it applies, description is abbreviate | omitted.

(Experiment)
With respect to the mist / dust small-size collection device A of the present invention, an experiment for examining the recovery performance of the cleaning liquid using a cleaning machine in-house was conducted under the following conditions. The results are shown in Table 1.
Cleaning liquid temperature: 80-60 ° C
Turbofan air volume: 15m ³ / min
Motor output: 2.2kW
Operation time: 20 minutes As a comparative example, a demister-type collecting device in which the rotating brush was removed from the collecting device A of the present invention and a demister was provided on the exhaust side was used.

  As a result of the experiment, it was confirmed that the small collection device A of the present invention has a recovery amount about four times that of the demister type collection device of the comparative example.

  As mentioned above, this small mist / dust collection device has a compact structure that can handle the collection and recovery of mist and dust with various properties such as water mist, cleaning liquid mist, and water-soluble oil mist. Therefore, there is an advantage that mist and dusts can be efficiently separated and collected by a slashing action by the centrifugal force of the disk-type rotating brush.

Schematic diagram of mist / dust small-size collection device A of the first embodiment Plan view of disk-type rotating brush Explanatory drawing of the washing machine to which the small collection device A for mist / dust is applied Explanatory drawing which shows the case where the small collection device A of mist and dust is applied to an air blow device Schematic diagram of mist / dust small collection device B of the second embodiment Explanatory drawing of the metal processing machine to which the small collection device B for mist / dust is applied

Explanation of symbols

A: Small collection device for mist and dust (first embodiment)
DESCRIPTION OF SYMBOLS 1 ... Separation tank 2 ... Tank main body 4 ... Suction port 6 ... Partition plate 6a ... Opening part 11 ... Motor apparatus 13 ... Output shaft (also used as main shaft)
15 ... Turbofan casing 18 ... Disk type rotary brush 21 ... Brush piece 25 ... Swing member 29 ... Turbofan impeller 31 ... Water injection device nozzle B ... Mist Small dust collector (second embodiment)

Claims (3)

A mist / dust collecting device composed of a separation tank that separates mist / dust in the air sucked from the suction port and suction means connected to the separation tank,
For the separation tank, a main shaft vertically arranged at the center in the vertical tank body is driven and rotated by a motor device built in the tank body, and a large number of brush pieces are radially arranged on the fixed part. At least one disk-shaped rotating brush and a substantially flat-shaped swing-off member are attached to the main shaft in order from the top and fixed, and an annular partition plate having an opening at the center is formed in the tank body. And a disk-type rotary brush placed close to the partition plate, a nozzle of the water injection device is arranged on the suction port side in the tank body, and the water injection device is operated automatically or manually to eject from the nozzle Is provided so as to spray cooling water or cleaning liquid to the disk-type rotating brush,
In the casing connected to the lower part of the separation tank, an impeller attached to the output shaft of the motor device is arranged,
Mist / dust in the air sucked by operation of the motor device is separated in the separation tank, and the separated mist / dust is stored in a lower part of the separation tank. A small collection device for mist and dust.   2. The mist / dust collecting apparatus according to claim 1, wherein the separation tank and the casing are disposed sideways and the main shaft is disposed horizontally. 3. The mist / dust collecting apparatus according to claim 1, wherein the main shaft is a part of an output shaft of the motor device.

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