JP2011067740A - Mist and dust collector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mist and dust collector suitable for the collection of mist or dust and facilitating the recovery treatment of the collected dust. <P>SOLUTION: The mist and dust collector includes a separation tank 5 for separating the mist and dust in the air sucked from a suction port, a recovery tank 40 arranged to the lower part of the separation tank, a demister tank 32 for collecting the mist and dust remaining in the air discharged from the separation tank and a turbo fan 35 connected to the exhaust side of the demister tank. The separation tank is constituted so that a disc-shaped rotary brushes 20 having a large number of brush pieces provided thereto in a protruded state and a shaking-off member 25 are successively attached to the main shaft 16 rotationally driven by a motor device to be fixed thereto and the exhaust side of the trumpet-shaped member 30 provided under the shaking-off member is provided so as to be connected to the suction side of the demister tank. A magnet separator 41 for attracting the ferrous dust in the dust, which is separated by the separation tank 5 to be discharged, by a magnet is provided to the recovery tank 40. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention prevents mist generated during cleaning of machine parts, fine dust such as chips and polishing scraps generated during machining of machine parts, and fine dust such as woodworking and plastic powder from being scattered around. It is related with the collection device which collects.

  As a conventional mist and dust collecting device, various structures such as a filter method, a demister method, a cyclone method, a collision plate method, and an electric dust collection method are known. For example, the mist and dust collection device of Patent Document 1 according to the present applicant includes a separation tank that removes mist and dust in the air, and a turbofan casing that draws air in the separation tank and discharges it to the atmosphere. Are arranged vertically and a disk-type rotary brush and a swing-off member are attached to an output shaft of a motor built in the separation tank, and an impeller placed in the casing is attached, and the centrifugal force action of the rotary brush and the swing-off member The mist and dust are separated by the above-mentioned structure, and the separated mist and dust are discharged from a lower part of the tank to a predetermined location such as a cleaning tank of a machine tool through a discharge pipe.

  Further, in Patent Document 2, a disk-type rotating brush and a swing-off member are attached to an output shaft of a motor disposed above a separation tank that removes mist and dust in the air, and toward the bottom below the separation tank. Provide a trumpet-shaped member that expands, connect a turbo fan to the exhaust side of the trumpet-shaped member, separate the mist and dust by the centrifugal force action of the rotating brush and swing-off member, and the action of lowering the air flow rate of the trumpet-shaped member, The separated mist and dust are discharged from a lower part of the tank to a predetermined place through a discharge pipe.

  In the apparatus described in the above document, when the amount of dust separated from the air sucked into the separation tank is small, it is easily discharged from the discharge pipe together with the mist, but when the amount of dust separated is large, it is discharged. There is a problem that it is difficult to collect and collect from the tube.

Japanese Patent No. 4087377 Japanese Patent No. 4118851

  An object of the present invention is to provide a mist and dust collecting device that is suitable for collecting mist and dust and that can easily collect collected dust.

In order to achieve the above object, the invention described in claim 1 includes a separation tank for separating mist and dust in the air sucked from a suction port, a recovery tank disposed at a lower portion of the separation tank, and a separation thereof. A demister tank that collects mist and dust remaining in the air discharged from the tank, and suction means connected to the exhaust side of the demister tank,
The separation tank is fixed by attaching at least one disc-shaped rotating brush and a swing-off member, in which a large number of brush pieces project radially, to a main shaft provided in the tank driven and rotated by a motor device. A trumpet-shaped member formed to expand toward the bottom is provided below the swing-off member, and the exhaust side of the trumpet-shaped member is provided to connect to the intake side of the demister tank.
The recovery tank is provided with a magnet separator that adsorbs and removes iron-based fine dust in the dust separated and discharged in the separation tank with a magnet,
The air containing mist and dust is sucked into the separation tank held at a negative pressure by the operation of the suction means, and the mist in the air and the rotating brush that is rotated by the motor device and the centrifugal force action of the swing-off member The dust is shaken off and separated, and the mist and dust are separated by the air flow rate lowering action of the trumpet-shaped member, the iron-based fine dust in the separated dust is removed by the magnet separator, and further, the demister tank The mist and dust remaining in the air discharged from the trumpet member are collected.

In order to achieve the same object, the invention described in claim 2 includes a separation tank that separates mist and dust in the air sucked from the suction port, a recovery tank disposed at a lower portion of the separation tank, and a A demister tank that collects mist and dust remaining in the air discharged from the separation tank, and suction means connected to the exhaust side of the demister tank;
The separation tank is fixed by attaching at least one disc-shaped rotating brush and a swing-off member, in which a large number of brush pieces project radially, to a main shaft provided in the tank driven and rotated by a motor device. A trumpet-shaped member formed to expand toward the bottom is provided below the swing-off member, and the exhaust side of the trumpet-shaped member is provided to connect to the intake side of the demister tank.
In the recovery tank, the dust separated and discharged in the separation tank is dropped on a conveyor belt driven by a motor device, and the non-ferrous fine dust in the dust falling on the conveyor belt is scraped and recovered. A scraper device to be put into the box is installed,
Air containing mist and dust is sucked into the separation tank held at a negative pressure by the suction means, and the mist and dust in the air are removed by the centrifugal force action of the rotating brush and the swing-off member rotated by the motor device. The mist and dust are separated by the action of reducing the air flow velocity of the wrapper-shaped member, and the non-ferrous fine dust in the separated dust is removed by the scraper device, and the wrapper is further removed by the demister tank. It is configured to collect mist and dust remaining in the air discharged from the shape member.

  In order to achieve the same object, the invention described in claim 3 is characterized in that, in the mist and dust collecting device according to claim 1 or 2, the suction means is a turbo fan. .

  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 the water injection device is provided on the suction port side of the separation tank. It arrange | positions and it was comprised so that the water or washing | cleaning liquid stored in the said recovery tank might be pumped up with the pump provided in the said water injection apparatus, and it may spray on the said rotating brush from this nozzle.

(Invention of Claim 1)
This mist and dust collection device has a structure suitable for collecting dust such as mist generated during cleaning of machine parts, chips generated during processing of machine parts, etc. The mist and dust can be efficiently collected by the action of knocking off by force, the action of swinging off by the centrifugal force of the swing-off member, the action of lowering the air flow rate by the trumpet member and the filtration by the demister tank. Further, the iron-based fine dust in the dust separated in the separation tank can be removed by the magnet separator and smoothly recovered.

(Invention of Claim 2)
This mist and dust collecting device has a structure suitable for collecting dust such as woodworking powder, plastic powder, etc., and it knocks down by the centrifugal force of the disk-type rotating brush, swings off by the centrifugal force of the swing-off member, Mist and dust can be efficiently collected by the synergistic effect of the air flow rate lowering action by the shape member and the filtration by the demister tank. Furthermore, the nonferrous fine dust in the dust separated in the separation tank can be scraped up by the scraper device and smoothly collected into the collection box.

(Invention of Claim 4)
This mist and dust collection device is configured to pump water or cleaning liquid stored in the recovery tank from a nozzle of a water injection device arranged on the suction port side of the separation tank and spray it on a rotating brush. Alternatively, fine dust and water mist adhering to the rotating brush are removed by the cleaning liquid and the temperature of the air flowing into the separation tank is lowered, so that the water mist collection efficiency is particularly improved.

1 is a front view of a mist and dust collecting apparatus according to a first embodiment of the present invention. Same side view Enlarged view of separation tank Explanatory drawing which shows the state which applied the mist and dust collection apparatus of 1st Example to the machine tool. Explanatory drawing which shows the state which applied the mist and dust collection device of 1st Example to the washing machine Front view of the mist and dust collection device of the second embodiment according to the present invention Same side view

  The best mode of the present invention will be described below with reference to the drawings.

Example 1
The mist and dust collecting apparatus A of the first embodiment according to the present invention shown in FIG. 1 is a mist generated when cleaning machine parts, etc., dust such as chips generated during processing of machine parts, etc. The structure is suitable for collecting iron-based fine dust. The general configuration of the collection device A includes a separation tank 5 that separates mist and dust, a recovery tank 40 disposed below the separation tank 5, a mist remaining in the air discharged from the separation tank 5, and It comprises a demister tank 32 for collecting dust, a turbo fan 35 as suction means connected to the exhaust side of the demister tank 32, and an operation panel 50.

  In FIG. 1, a separation tank 5 is provided with a cylindrical tank body 6 in a vertical direction on a top part 1 a of a frame 1 provided with casters. It is divided into. The introduction chamber 8 and the separation chamber 28 are connected to each other via an intermediate cylinder 13 so that they can be separated by removing a bolt (not shown). As shown in FIG. 3, in order to allow air sucked into the introduction chamber 8 to flow toward the center of the bottom of the introduction chamber 8, the size of the outer diameter of the disk-type rotary brush 20 described later is slightly smaller. An opening 9 is formed. Reference numeral 10 denotes a suction port provided in the body of the introduction chamber 8, 11 denotes a connecting pipe connected to the suction port 10, and 12 denotes a lid attached to the upper mouth of the introduction chamber 8.

  Note that the introduction chamber 8, the separation chamber 28, and the intermediate body 13 of the tank body 6 may be divided into half structures.

  At the center of the introduction chamber 8, a main shaft 16 is inserted into a bearing member 15 attached to the lower surface of the lid 12 so that the main shaft 16 is supported vertically. The main shaft 16 has a structure that also serves as an output shaft of the motor device 17 installed on the lid 12. Five disk-type rotary brushes 20 and spacers 23 are inserted into the main shaft 16 in order from the back, and a deep dish-shaped swing-off member 25 is placed downward on the screw portion 16a protruding from the lowermost disk-type rotary brush 20. These are fixed by tightening the nut 26 screwed into the threaded portion 16a. The swing-off member 25 is provided so that the mist and dust can be easily shaken off and adhered to the inner surface of the tank body 6 by the centrifugal force generated when the motor device 17 rotates.

  The disk-type rotary brush 20 has the same structure as the disk-type rotary brush described in Japanese Patent No. 4118851 concerning the present applicant. That is, the rotating brush 20 has a large number of brush pieces 22 projecting radially on the outer periphery of a fixed portion 21 in which a shaft hole (not shown) for mounting on the main shaft 16 is formed, and has an outer diameter of about 250 mm. The thickness dimension is about 30 mm. For the brush piece 22, 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 30 formed so as to expand downward is provided at the center of the separation chamber 28. An intake pipe 32 a of the demister tank 32 is connected to the exhaust port 30 b of the trumpet member 30. The demister tank 32 stores a known demister member (not shown) that collects mist and dust remaining in the air discharged from the separation tank 5. The mist and dust finally removed by the demister tank 32 are provided so as to be discharged to the collection tank 40 described later by the drain pipe 33.

  About the demister member, the thing similar to what was described in the patent 4112588 concerning this applicant can also be used. The demister member has a multilayer structure in which a mesh-like reinforcing plate is interposed between the electric stone nonwoven fabric piece and the electric stone nonwoven fabric piece, and the air is stored in the demister tank 32 and filtered along the surface direction of the demister member. Is provided to pass through.

  A turbo fan 35 is connected to the exhaust pipe 32 b of the demister tank 32. Reference numeral 36 denotes a drive motor for the turbo fan 35. Reference numeral 37 denotes a silencer attached to the exhaust pipe 35 a of the turbo fan 35. Reference numeral 38 denotes a drain pipe for discharging the separation liquid accumulated in the exhaust pipe 35a to the recovery tank.

  Reference numeral 40 denotes a recovery tank disposed in the lower part of the separation tank 5 and provided in the frame 1. In the recovery tank 40, the dust separated by the separation tank 5 and discharged from the discharge pipe 29 is received by the inflow portion 42, and the iron-based fine dust in the dust is adsorbed and removed by a magnet (not shown). A magnetic separator 41 having a structure is provided. Reference numeral 43 denotes a collection box that stores iron-based fine dust that is removed by the magnet separator 41 and discharged.

  Further, a nozzle (not shown) of the water injection device 45 is arranged on the inlet 10 side of the introduction chamber 8. Then, water or cleaning liquid stored in the recovery tank 40 is pumped up by a pump 46 provided in the water injection device 45, and water or cleaning liquid supplied from the supply pipe 47 is sprayed from the nozzle to the brush piece 22 of the disk-type rotary brush 20. Thus, the mist and dust are adhered to the rotating brush 20 to promote separation / removal and the temperature of the air flowing into the introduction chamber 8 is lowered.

  As described above, air containing mist and dust is sucked into the separation tank 5 held at a negative pressure by the operation of the turbo fan 35, and the centrifugal brush action of the rotary brush 20 and the swing-off member 25 rotated by the motor device 17 The mist and dust in the air are shaken off and separated, and the mist and dust are separated by the air flow rate lowering action of the trumpet-shaped member 30, and the iron-based fine dust in the separated dust is removed by the magnet separator 41. The mist and dust collecting device A of the first embodiment for collecting mist and dust remaining in the air discharged from the trumpet shaped member 30 in the demister tank 32 is configured.

Next, the operation when the mist and dust collecting apparatus A of the first embodiment is applied to the processing machine shown in FIG. 4 will be described.
First, a schematic configuration of the processing machine M will be described.
In the processing chamber 80, a spindle 83 is provided on a quill 82 whose position is automatically controlled in the vertical and horizontal directions in a column 81, and a cutting tool 84 such as a drill is mounted on the spindle 83. The scale 86 for fixing the workpiece w is provided by a carriage 85 so as to be movable in the front-rear direction. Reference numeral 87 denotes a collection unit disposed at the top of the processing chamber 81. The collecting portion 87 and the connecting pipe 11 of the collecting device A are connected by a duct 88.
(1) In the processing machine M, when an iron-based or non-ferrous workpiece w is cut by the cutting tool 84, a water-soluble cutting fluid is sprayed from a flushing nozzle (not shown) toward the workpiece w and the cutting tool 84. Has been to be. Thereby, a part of the cutting fluid becomes water-soluble oil mist, which is mixed with the fine dust generated during the cutting process and floating in the air and scattered around.
(2) Therefore, when the collection device A is operated, the inside of the separation tank 5 is maintained at a negative pressure by the operation of the turbofan 35. Therefore, the mist and dust generated in (1) Together, it is sucked from the collection part 87 into the introduction chamber 8 of the separation tank 5.
(3) In the separation tank 5, the disk-type rotary brush 20 is rotated by the motor device 17 at a rotation speed within a range of 100 to 1000 rotations per minute. Air sucked into the introduction chamber 8 flows toward the center of the disk-type rotary brush 20 through the opening 9 and is struck against the inner surface of the tank body 6 by the centrifugal force action of the rotary brush 20 and the swing-off member 30. The mist and dust are separated and descend.
(4) Next, the air that has flowed into the separation chamber 28 once decreases the flow velocity by the trumpet-shaped member 30 and flows out from the exhaust port 30b.
(5) The dust-mixed mist separated from the sucked air is liquefied, and the liquid is discharged to the inflow portion 42 of the magnet separator 41.
(6) In the magnet separator 41, the iron-based fine dust in the dust is removed by the magnet's adsorption action and discharged to the collection box 43.
(7) The air flowing out from the separation chamber 15 flows into the demister tank 32, and the mist and dust remaining in the air are removed by the demister member. The air that has passed through the demister tank 32 is discharged from the turbo fan 35 through the silencer 37 to the atmosphere.

A case where the mist and dust collecting apparatus A of the first embodiment is applied to the cleaning machine S shown in FIG. 5 will be described.
(1) In the shower chamber 90 of the cleaning machine S, the cleaning liquid in the cleaning liquid tank 92 is sucked by the pump 93 and sprayed from the shower nozzle 94 to the workpiece w. Next, in the drying chamber 91, the workpiece w is dried by blowing compressed air from the nozzle 95 of the air blowing means to the workpiece w. At this time, the cleaning liquid adhering to the workpiece w becomes mist and scatters around.
(2) The mist generated in (1) is sucked into the introduction chamber 8 of the separation tank 5 of the collection device A through the duct 98 together with the surrounding air from the collection portions 97a and 97b.
About the operation | movement which follows, since it applies to the description at the time of applying to the processing machine mentioned above, description is abbreviate | omitted.

(Second embodiment)
The mist and dust collecting apparatus B of the second embodiment according to the present invention shown in FIG. 6 has a structure suitable for non-ferrous fine dust such as woodworking powder and plastic powder. The collection device B is configured in accordance with the configuration of the mist and dust collection device A of the first embodiment described above, and is different in that the magnet separator 41 is used as a scraper device 61. Therefore, about the same component as it, the code | symbol used for description of the said collection apparatus A is diverted, it describes in drawing, and the description is abbreviate | omitted.

  As shown in FIG. 6, the scraper device 61 drops the dust separated and discharged by the separation tank 5 onto a conveyor belt 62 driven by a motor device 63, and in the dust that has fallen onto the conveyor belt 62. The non-ferrous fine dust is scraped and put into the collection box 65. The lower part of the conveyor belt 62 is provided so as to be immersed in the cleaning liquid stored in the collection tank 60.

  As described above, air containing mist and dust is sucked into the separation tank 5 held at a negative pressure by the turbofan 35, and the air is removed by the centrifugal force action of the rotary brush 20 and the swing-off member 25 that are rotated by the motor device 17. The mist and dust are shaken off and separated, and the mist and dust are separated by the air flow rate lowering action of the trumpet-shaped member 30, and the non-ferrous fine dust in the separated dust is removed by the scraper device 61, and further, the demister tank The mist and dust collecting device B of the second embodiment for collecting mist and dust remaining in the air discharged from the trumpet member 30 at 32 is configured.

A ... Mist and dust collecting device 5 of the first embodiment ... Separation tank 10 ... Suction port 16 ... Main shaft 17 ... Motor device 20 ... Disc type rotary brush 25 ... -Swing-off member 30 ... Trumpet-shaped member 32 ... Demister tank 32
35 ... Turbo fan (suction means)
40 ... Recovery tank 41 ... Magnet separator 45 ... Water injection device 46 ... Pump B ... Mist and dust collection device 60 of the second embodiment ... Recovery tank 61 ... Scraper Device 62 ... Conveyor belt

Claims (4)

A separation tank that separates mist and dust in the air sucked from the suction port, a recovery tank arranged at the lower part of the separation tank, and mist and dust remaining in the air discharged from the separation tank are collected. And a suction means connected to the exhaust side of the demister tank,
The separation tank is fixed by attaching at least one disc-shaped rotating brush and a swing-off member, in which a large number of brush pieces project radially, to a main shaft provided in the tank driven and rotated by a motor device. A trumpet-shaped member formed to expand toward the bottom is provided below the swing-off member, and the exhaust side of the trumpet-shaped member is provided to connect to the intake side of the demister tank.
The recovery tank is provided with a magnet separator that adsorbs and removes iron-based fine dust in the dust separated and discharged in the separation tank with a magnet,
The air containing mist and dust is sucked into the separation tank held at a negative pressure by the operation of the suction means, and the mist in the air and the rotating brush that is rotated by the motor device and the centrifugal force action of the swing-off member The dust is shaken off and separated, and the mist and dust are separated by the air flow rate lowering action of the trumpet-shaped member, the iron-based fine dust in the separated dust is removed by the magnet separator, and further, the demister tank A mist and dust collecting device configured to collect mist and dust remaining in air discharged from a trumpet member. A separation tank that separates mist and dust in the air sucked from the suction port, a recovery tank arranged at the lower part of the separation tank, and mist and dust remaining in the air discharged from the separation tank are collected. And a suction means connected to the exhaust side of the demister tank,
The separation tank is fixed by attaching at least one disc-shaped rotating brush and a swing-off member, in which a large number of brush pieces project radially, to a main shaft provided in the tank driven and rotated by a motor device. A trumpet-shaped member formed to expand toward the bottom is provided below the swing-off member, and the exhaust side of the trumpet-shaped member is provided to connect to the intake side of the demister tank.
In the recovery tank, the dust separated and discharged in the separation tank is dropped on a conveyor belt driven by a motor device, and the non-ferrous fine dust in the dust falling on the conveyor belt is scraped and recovered. A scraper device to be put into the box is installed,
Air containing mist and dust is sucked into the separation tank held at a negative pressure by the suction means, and the mist and dust in the air are removed by the centrifugal force action of the rotating brush and the swing-off member rotated by the motor device. The mist and dust are separated by the action of reducing the air flow velocity of the wrapper-shaped member, and the non-ferrous fine dust in the separated dust is removed by the scraper device, and the wrapper is further removed by the demister tank. A device for collecting mist and dust, wherein the mist and dust remaining in the air discharged from the shape member are collected.   The mist and dust collecting device according to claim 1 or 2, wherein the suction means is a turbo fan.   A nozzle of a water injection device is arranged on the suction port side of the separation tank, and water or cleaning liquid stored in the recovery tank is pumped up by a pump provided in the water injection device and sprayed from the nozzle to the rotating brush The mist and dust collection device according to any one of claims 1 to 3, wherein

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