JP2015077555A - Blower type dust collector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a blower type dust collector capable of effectively collecting dust generated in a dust generating mechanism.SOLUTION: A blower type dust collector installed for a dust generating mechanism generating dust comprises: a booth to surround the dust generating mechanism; a blower being disposed at one side surface of the booth and sending an air flow from the outside of the booth to the inside of the booth; and a suction exhaust port being disposed at the other side surface facing the one side surface of the booth and suctioning and exhausting the air flow sent by the blower.

Description

  The present invention relates to a blast-type dust collector provided for a dust generation mechanism that generates dust.

  For example, there is a space that needs to maintain a clean atmosphere inside, such as a clean room. Even in such a space, product manufacturing and product transportation are performed. In that case, the metal dust may generate | occur | produce from the mechanism required for product manufacture or product conveyance, for example, metal gear drive parts. Such dust must be prevented from scattering in the space in order to maintain a clean atmosphere.

  The dust collector described in Patent Document 1 is a type of dust collector that sucks dust by a vacuum means. Thus, the dust collector using a vacuum means has the advantage that dust collection efficiency is high besides the kind of dust is not ask | required.

  Specifically, in the dust collector described in Patent Document 1, a magnetic adsorption mechanism is provided in a flow path through which the dust sucked by the vacuum means passes, and the magnetic adsorption mechanism adsorbs and collects the dust. This magnetic attraction mechanism includes a magnetism generating means and an endless partition member that is formed of a material that does not have magnetism and that is driven to rotate around the magnetism generating means so as to go around the magnetism generating means. And this magnetic adsorption | suction mechanism can convey the dust magnetically adsorbed to the outer surface of an above-described partition material to the dust collection position (partition material) where magnetism does not act by rotating a partition material. .

JP 10-138083 A

  However, the dust collector using the vacuum means has a problem that turbulent flow is generated, for example, in the vicinity of the suction port, and the turbulent flow causes dust scattering.

  In addition, the dust collector using the vacuum means seals the dust generation mechanism in order to increase the dust collection efficiency by suction and to prevent the diffusion of dust scattered by the turbulent flow generated near the suction port. However, it is sometimes difficult to install such a sealing mechanism (sealed booth) in a narrow (limited) space in a clean room.

  The present invention has been created based on the above findings. The objective of this invention is providing the ventilation type dust collector which can collect the dust generated with a dust generation mechanism effectively.

  The present invention is a blow-type dust collecting device provided for a dust generating mechanism for generating dust, the booth surrounding the dust generating mechanism, provided on one side of the booth, and from inside the booth to the inside of the booth A blower-type collector comprising: a blower that blows an airflow to the side; and a suction discharge port that is provided on the other side facing the one side of the booth and sucks and exhausts the airflow blown by the blower. It is a dust device.

  According to the present invention, dust generated by the dust generation mechanism is prevented from scattering outside the booth, and the dust inside the booth is efficiently transferred to the suction outlet by the airflow flowing from the blower toward the suction outlet. Therefore, by using a known filter member in combination, for example, dust inside the booth can be effectively collected regardless of physical properties.

  The booth may be formed in a substantially rectangular parallelepiped. In this case, the degree of freedom of design regarding the installation of the blower and the suction outlet for the booth is high, and the manufacturing efficiency and the dust collection efficiency can be improved.

  For example, the one side of the booth may be the top surface of the booth, and the other side of the booth may be the bottom surface of the booth. In this case, since the airflow flows from the top surface to the bottom surface of the booth, the dust collection efficiency of the dust can be improved in combination with the gravity acting on the dust.

  Further, in this case, a partition for separating the area near the dust generation mechanism and the area far from the dust generation mechanism while maintaining communication with each other is provided inside the booth, and the suction The discharge port may be provided in a region near the dust generation mechanism so that the region near the dust generation mechanism is in a negative pressure state. In this case, the gas is sucked and exhausted from the area near the dust generation mechanism through the suction / discharge port, so that the area near the dust generation mechanism is in a negative pressure state, and the dust generation mechanism starts from the area near the dust generation mechanism. It is possible to prevent the dust from diffusing to a region far from the center.

  Alternatively, for example, the one side of the booth may be the front of the booth, and the other side of the booth may be the rear of the booth. In this case, since the airflow flows backward from the front of the booth, the dust inside the booth can be guided to the outside of the booth by the airflow flowing along the front-rear direction.

  Further, in this case, a partition for separating a region near the dust generation mechanism and a region far from the dust generation mechanism while maintaining communication with each other is provided inside the booth. An auxiliary suction exhaust port may be provided for a region in the vicinity of the generation mechanism, and the region in the vicinity of the dust generation mechanism may be in a negative pressure state. In this case, by suctioning and exhausting from the area near the dust generation mechanism via the auxiliary suction / discharge port, the area near the dust generation mechanism becomes a negative pressure state, and from the area near the dust generation mechanism to the dust generation mechanism. It is possible to prevent dust from diffusing to a distant area.

  According to the present invention, dust generated by the dust generation mechanism is prevented from scattering outside the booth, and the dust inside the booth is efficiently transferred to the suction outlet by the airflow flowing from the blower toward the suction outlet. Therefore, by using a known filter member in combination, for example, dust inside the booth can be effectively collected regardless of physical properties.

It is a schematic perspective perspective view of the ventilation type dust collector of the 1st Embodiment of this invention. It is a schematic perspective perspective view of the ventilation type dust collector of the 2nd Embodiment of this invention. It is a schematic perspective perspective view of the ventilation type dust collector of the 3rd Embodiment of this invention. It is a schematic front perspective view of the ventilation type dust collector of the 4th Embodiment of this invention. It is sectional drawing which follows the VV line of FIG. It is a figure corresponding to FIG. 5 about the ventilation type dust collector of the 5th Embodiment of this invention.

  Embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

  FIG. 1 is a schematic perspective perspective view of a blown dust collector 1 according to a first embodiment of the present invention. As shown in FIG. 1, the blower-type dust collector 1 of the present embodiment is a part of a transport mechanism for transporting various products in a clean room, for example, and is arranged in two in the front-rear direction. It is a device provided for the gear groups 101 and 102. In this case, the metal gear groups 101 and 102 are dust generation mechanisms, and the blower-type dust collector 1 collects dust generated by the metal gear groups 101 and 102.

  In the present embodiment, the dust generated by the metal gear groups 101 and 102 is dust made of stainless steel (SUS304, SUS305), chromium molybdenum steel (SCM415), and the target particle size is 0.7 μm. That's it. However, it is about several tens of μm that can be visually observed. The material of the dust generation mechanism, that is, the dust generated by the dust generation mechanism may be a resin or the like.

  The blower type dust collector 1 of the present embodiment includes a booth 10 formed in a substantially rectangular parallelepiped shape that surrounds the metal gear groups 101 and 102 from the front, rear, top, bottom, left and right directions.

  The booth 10 is provided for the purpose of limiting the dust scattering region generated by the metal gear groups 101 and 102. The booth 10 is not limited to the one that seals the space around the metal gear groups 101 and 102, and various openings (for avoiding interference with the shaft members connected to the metal gear groups 101 and 102) ( (Not shown).

  In the present embodiment, three blowers 21 to 23 are arranged on the surface of the booth 10 located above the metal gear groups 101 and 102, that is, on the upper surface of the booth 10 so as to be arranged in the front-rear direction. Each of the blowers 21 to 23 includes an impeller and a rectangular frame-shaped support member that rotatably supports the impeller. And in this Embodiment, the whole upper surface of the booth 10 is occupied by the three support members of the three air blowers 21-23.

  Each of the blowers 21 to 23 is configured to take in air from the outside of the booth 10 and blow it as an airflow into the booth 10. Moreover, the rotating shafts of the impellers of the blowers 21 to 23 are aligned in the vertical direction (vertical direction). Thereby, the airflow blown by each of the blowers 21 to 23 flows in the vertical direction from the top surface of the booth 10 toward the bottom surface. Each of the blowers 21 to 23 has a size of 120 mm × 120 mm, and the blowing amount is about 48 CFM (13.6 l / min).

  On the other hand, three suction / discharge ports 31 to 33 are provided on the bottom surface of the booth 10 so as to be aligned in the front-rear direction. Each suction / discharge port 31 to 33 is formed in a circular shape in the present embodiment. However, the shape of the suction / discharge ports 31 to 33 may not be circular, but may be elliptical or rectangular. The airflow passing through the suction / discharge ports 31 to 33 flows further downstream through a known filter member (not shown). The filter member captures dust contained in the airflow that has passed. The sum of the exhaust amount by the suction exhaust ports 31 to 33 is set to be larger than the sum of the above-mentioned air blowing amounts so that the inside of the apparatus is in a negative pressure state.

  And in this Embodiment, the air blower 21 and the suction discharge port 31 are located so that it may oppose a perpendicular direction (up-down direction). More specifically, the axis of the rotating shaft of the impeller of the blower 21 passes through the center of the suction / discharge port 31. Similarly, the blower 22 and the suction / discharge port 32 are positioned so as to face each other in the vertical direction (vertical direction). More specifically, the axis of the rotating shaft of the impeller of the blower 22 passes through the center of the suction / discharge port 32. Similarly, the blower 23 and the suction / discharge port 33 are positioned so as to face each other in the vertical direction (vertical direction). More specifically, the axis of the rotating shaft of the impeller of the blower 23 passes through the center of the suction / discharge port 33.

  Further, in the present embodiment, the metal gear group 101 is located in a region between a region immediately below the rotation shaft of the impeller of the blower 21 and a region directly below the rotation shaft of the impeller of the blower 22. Yes. Further, the metal gear group 102 is located between a region immediately below the rotation shaft of the impeller of the blower 22 and a region directly below the rotation shaft of the impeller of the blower 23.

  Next, the effect | action of the ventilation type dust collector 1 of this Embodiment is demonstrated.

  As a result of the operation, the metal gear groups 101 and 102 that are part of a transport mechanism for transporting various products generate dust made of stainless steel (SUS304, SUS305), chrome molybdenum steel (SCM415), or the like.

  The generated dust is scattered from the metal gear groups 101 and 102, but is prevented from scattering outside the booth 10 because the metal gear groups 101 and 102 are covered by the booth 10. Moreover, the dust inside the booth 10 is efficiently guided to the suction / discharge ports 31 to 33 along a linear track by the airflow flowing from the blowers 21 to 23 toward the suction / discharge ports 31 to 33. And the dust which passed through the suction discharge ports 31-33 is collected by the filter member ahead of the suction discharge ports 31-33.

  As described above, according to the present embodiment, dust generated in the metal gear groups 101 and 102 is prevented from scattering outside the booth 10, and the dust inside the booth 10 is blown from the fans 21 to 23. Since the airflow that flows toward the suction discharge ports 31 to 33 is efficiently guided to the suction discharge ports 31 to 33, dust can be effectively collected regardless of physical properties by using a known filter member in combination.

  Moreover, in this Embodiment, the booth 10 is formed in the substantially rectangular parallelepiped, and the freedom degree of the design regarding installation of the air blower and the suction discharge port with respect to the booth 10 is high. For this reason, it is easy to improve manufacturing efficiency and dust collection efficiency.

  Moreover, in this Embodiment, the one side surface of the booth 10 in which the air blowers 21-23 are provided is the upper surface of the booth 10, and the other side surface opposite to the one side surface in which the suction discharge ports 31-33 are provided is the bottom surface of the booth 10. is there. For this reason, airflow flows from the upper surface of the booth 10 toward the bottom surface, and it is possible to improve dust collection efficiency in combination with gravity acting on the dust.

  Next, FIG. 2 is a schematic perspective perspective view of the blow type dust collector 2 of the second embodiment of the present invention.

  In the blower type dust collector 2 of the present embodiment, two blowers 24 and 25 are provided on the front face of the booth 10 so as to line up and down. Further, two suction / discharge ports 34 and 35 are provided on the rear surface of the booth 10 so as to be lined up and down.

  Specifically, each of the blowers 24 and 25 includes an impeller and a rectangular frame-shaped support member that rotatably supports the impeller. In the present embodiment, the entire front surface of the booth 10 is occupied by the two support members of the two blowers 24 and 25.

  Each of the blowers 24 and 25 is configured to take in air from the outside of the booth 10 and blow it as an airflow into the booth 10. Moreover, the rotating shafts of the impellers of the blowers 24 and 25 are arranged in the front-rear direction. Thereby, the airflow blown by the blowers 24 and 25 flows in the front-rear direction from the front surface of the booth 10 toward the rear surface.

  On the other hand, each suction / discharge port 34, 35 is formed in a circular shape in the present embodiment. However, the shape of the suction / discharge ports 34 and 35 may not be circular, but may be elliptical or rectangular. The airflow that has passed through the suction discharge ports 34 and 35 flows further downstream through a known filter member (not shown). The filter member captures dust contained in the airflow that has passed. The sum of the exhaust amount by the suction exhaust ports 34 and 35 is set larger than the sum of the air amount by the blowers 24 and 25 so that the inside of the apparatus is in a negative pressure state.

  And in this Embodiment, it is located so that the air blower 24 and the suction discharge port 34 may oppose the front-back direction. More specifically, the axis of the rotating shaft of the impeller of the blower 24 passes through the center of the suction / discharge port 34. Similarly, the blower 25 and the suction / discharge port 35 are positioned so as to face each other in the front-rear direction. More specifically, the axis of the rotating shaft of the impeller of the blower 25 passes through the center of the suction / discharge port 35.

  In each point described above, the blower dust collector 2 is different from the blower dust collector 1 of the first embodiment. The other configuration is the same as that of the blow type dust collector 1 of the first embodiment. In FIG. 2, the same components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  Next, the effect | action of the ventilation type dust collector 2 of this Embodiment is demonstrated.

  Dust generated by the metal gear groups 101, 102 scatters from the metal gear groups 101, 102, but since the metal gear groups 101, 102 are covered by the booth 10, they are not scattered outside the booth 10. Is prevented. Also, the dust inside the booth 10 is efficiently guided to the suction and discharge ports 34 and 35 along a linear track by an airflow flowing in the front-rear direction from the blowers 24 and 25 toward the suction and discharge ports 34 and 35. It is burned. And the dust which passed through the suction discharge ports 34 and 35 is collected by the filter member (not shown, the same as that of 1st Embodiment) ahead of the suction discharge ports 34 and 35.

  As described above, the present embodiment also prevents dust generated in the metal gear groups 101 and 102 from being scattered outside the booth 10. Further, the dust inside the booth 10 is efficiently guided to the suction discharge ports 34 and 35 by the airflow flowing in the front-rear direction from the blowers 24 and 25 toward the suction discharge ports 34 and 35. By using in combination, dust can be effectively collected regardless of physical properties.

  Next, FIG. 3 is a schematic perspective perspective view of the blow type dust collector 3 of the third embodiment of the present invention.

  The blow-type dust collector 3 of the present embodiment is provided at a predetermined position on the bottom surface of the booth 10 corresponding to the magnet devices 71 and 72 provided below the predetermined position on the bottom surface of the booth 10 and the magnet devices 71 and 72. It differs from the ventilation type dust collector 1 of 1st Embodiment by the point which has the adhesive sheets 61 and 62. FIG.

  The magnet device 71 is provided below the metal gear group 101 and has a suction surface that attracts dust made of a magnetic material. The suction surface of the magnet device 71 is located in a region between the suction exhaust port 31 and the suction exhaust port 32 on the bottom surface side of the booth 10.

  Similarly, the magnet device 72 is provided below the metal gear group 102 and has a suction surface that attracts dust made of a magnetic material. The suction surface of the magnet device 72 is located in a region between the suction exhaust port 32 and the suction exhaust port 33 on the bottom surface side of the booth 10.

  Magnet devices 71 and 72 according to the present embodiment are made of anisotropic magnets having a strong magnetic force in the direction of metal gear groups 101 and 102. Specifically, a product name “MagTack Tape Roll 1.5 mm × 19 mm” (product number: 000228) manufactured by Nichirei Magnet Co., Ltd. is used. Alternatively, a trade name “neodymium magnet sheet 1.0 mm × 200 mm” manufactured by Magna Co., Ltd. may be used.

  On the other hand, the adhesive sheet 61 is provided on the bottom surface of the booth 10 corresponding to the suction surface of the magnet device 71. The adhesive sheet 62 is provided on the bottom surface of the booth 10 corresponding to the suction surface of the magnet device 72. In the present embodiment, a laminated adhesive sheet in which a plurality is laminated is used. Specifically, a 30-layer laminate type “Azure Clean Mat” (product number: 1-4731-63 white 450 × 900) manufactured by AS ONE Co., Ltd. is used after being cut according to the size of the installation location. It has been.

  The other configuration is the same as that of the blow type dust collector 1 of the first embodiment. In FIG. 3, the same components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  Next, the effect | action of the ventilation type dust collector 3 of this Embodiment is demonstrated.

  Dust generated by the metal gear groups 101, 102 scatters from the metal gear groups 101, 102, but since the metal gear groups 101, 102 are covered by the booth 10, they are not scattered outside the booth 10. Is prevented. Further, a part of the dust inside the booth 10 is efficiently guided to the suction discharge ports 31 to 33 along the linear trajectory by the airflow flowing from the blowers 21 to 23 toward the suction discharge ports 31 to 33. It is burned. Here, a part of the dust inside the booth 10 that missed the air flow is attracted by the adhesive sheets 61 and 62 on the suction surface of the magnet devices 71 and 72 under the action of the magnetic force of the magnet devices 71 and 72. The The adsorbed dust is reliably prevented from being scattered again thereafter by the adhesive force of the adhesive sheets 61 and 62.

  And the dust which passed through the suction discharge ports 31-33 is collected by the filter member (not shown and the same thing as 1st Embodiment) ahead of the suction discharge ports 31-33.

  In the present embodiment, after the operation of the metal gear groups 101 and 102 for a predetermined time, when the operation of the metal gear groups 101 and 102 is stopped, for example, the booth 10 is removed by an operator, When the adhesive sheets 61 and 62 are peeled off by the person, the dust adsorbed on the adhesive sheets 61 and 62 is discarded together with the adhesive sheets 61 and 62. During this operation, dust does not scatter while adsorbed to the adhesive sheets 61 and 62, so that the operation by the operator is easy. In addition, since the pressure-sensitive adhesive sheets 61 and 62 are made of laminated pressure-sensitive adhesive sheets, the pressure-sensitive adhesive surface of the next sheet is easily exposed by peeling off the uppermost sheet that adsorbs dust. In this case, after that, the booth 10 is attached again, and the operation of the metal gear groups 101 and 102 is resumed.

  As described above, the present embodiment also prevents dust generated in the metal gear groups 101 and 102 from being scattered outside the booth 10. Moreover, since the dust inside the booth 10 is efficiently guided to the suction discharge ports 31 to 33 by the airflow flowing from the blowers 21 to 23 toward the suction discharge ports 31 to 33, a known filter member should be used in combination. Thus, dust can be effectively collected regardless of physical properties. In addition, the dust made of a magnetic material attracted to the suction surfaces of the magnet devices 71 and 72 is scattered again after being adsorbed by the adhesive surfaces of the adhesive sheets 61 and 62 installed on the suction surfaces. Is reliably prevented.

  Further, since the adsorbed dust can be discarded together with the adhesive sheets 61 and 62, the operator's work is also easy.

  Further, since the magnet devices 71 and 72 are anisotropic magnets having a strong magnetic force in the direction of the metal gear groups 101 and 102, the magnetic gear groups 101 and 102 are more strongly applied with a magnetic force. be able to.

  The magnet devices 71 and 72 can be replaced by electromagnet devices. In this case, it is easy to adjust the strength of the magnetic force, and it is easy to control the ON / OFF of the magnetic force. Therefore, for example, it is possible to prioritize the suction action from the suction exhaust ports 31 to 33 by turning off the magnetic force when replacing the adhesive sheets 61 and 62.

  Moreover, although the lamination adhesive sheet was used in this Embodiment as an adhesive sheet, the sheet | seat of the type by which the adhesive gel was apply | coated to the adhesive surface may be sufficient. In this case, for example, dust is wiped off together with the adhesive gel, and then the new adhesive gel is applied again, so that the adhesive sheet is used repeatedly.

  Next, FIG. 4 is a schematic front perspective view of the blow type dust collector 4 of the fourth embodiment of the present invention, and FIG. 5 is a cross-sectional view taken along the line V-V in FIG.

  As shown in FIGS. 4 and 5, the blower dust collector 4 according to the present embodiment includes, for example, belt conveyor gear groups 201 and 202 that are part of a transport mechanism for transporting the wafer W in a clean room. It is an apparatus provided with respect to it. In this case, the belt conveyor gear groups 201 and 202 are dust generating mechanisms, and the blower dust collector 4 collects dust generated by the belt conveyor gear groups 201 and 202.

  The blower type dust collector 4 of the present embodiment includes a booth 11 formed in a substantially rectangular parallelepiped shape that surrounds the belt conveyor gear groups 201 and 202 from the front, rear, up, down, left and right directions.

  In FIG. 4, the belt conveyor gear group 201 arranged at the left side of the paper surface inside the booth 11 includes a plurality of gears arranged so as to be arranged at intervals in the front-rear direction. The belt conveyor gear group 202 arranged at the position on the right side of the drawing includes a plurality of gears (see FIG. 5) arranged so as to be arranged in the front-rear direction at intervals. FIG. 5 illustrates gears 202 a to 202 f included in the belt conveyor gear group 202.

  The plurality of gears included in the belt conveyor gear group 201 respectively opposes one of the plurality of gears included in the belt conveyor gear group 202 in the left-right direction. The gear of the belt conveyor gear group 201 and the gear of the belt conveyor gear group 202 facing in the left-right direction are connected by a shaft 203 extending in the left-right direction. The shaft 203 rotates with the rotation of the pair of left and right gears.

  The shaft 203 is provided with six rollers 204 so as to be arranged at intervals in the axial direction of the shaft 203. Each roller 204 is fixed so as not to rotate relative to the shaft 203. In FIG. 4, only the frontmost shaft 203 and the roller 204 are illustrated, but the same roller is provided for the rear shaft.

  As shown in FIGS. 4 and 5, a pair of left and right standing wall portions 81 and 82 are formed on the bottom surface of the booth 10 so as to rise upward and extend in the longitudinal direction. The upright wall portion 81 is disposed at a position adjacent to the belt conveyor gear group 201 on the inner side of the belt conveyor gear group 201 (in the left-right direction, the center side of the booth 10). Symmetrically, the standing wall portion 82 is disposed at a position adjacent to the belt conveyor gear group 202 inside the belt conveyor gear group 202 (center side of the booth 10 in the left-right direction).

  As shown in FIG. 4, the shaft 203 passes through the standing wall portions 81 and 82 and is rotatably supported by the standing wall portions 81 and 82. A shaft disposed behind the shaft 203 is also rotatably supported by the standing wall portions 81 and 82.

  In the present embodiment, a partition wall 91 is provided that further rises from the upper surface of the standing wall portion 81 in a direction inclined outward in the left-right direction and extends long in the front-rear direction. Similarly, in the present embodiment, there is provided a partition wall 92 that further rises from the upper surface of the standing wall portion 82 in a direction that is inclined outward in the left-right direction and that extends in the longitudinal direction.

  The partition wall 91 separates the region N1 in the vicinity of the belt conveyor gear group 201 and the region F far from the belt conveyor gear group 201 within the booth 11 on the left side of the paper while maintaining a narrow flow path area. ing. Similarly, in the booth 11 on the right side of the page, the partition wall 92 maintains communication between the area N2 near the belt conveyor gear group 202 and the area F far from the belt conveyor gear group 202 in a narrow flow path area. However, they are separated.

  An endless belt (not shown) is wound around the roller 204 fixed to the shaft 203 and the entire roller fixed to the shaft behind the roller 204. The belt conveyor gear groups 201 and 202 are configured to carry the wafer W placed on the endless belt by driving the endless belt. As shown in FIG. 5, in the present embodiment, the wafer W placed on the endless belt is transported from the back of the booth 11 toward the front.

  In the present embodiment, three blowers 26 to 28 are arranged on the surface of the booth 11 located above the belt conveyor gear groups 201 and 202, that is, on the upper surface of the booth 11 so as to be arranged in the left-right direction. In the illustrated example, the blower 26 is disposed on the left side of the paper, the blower 28 is disposed on the right side of the paper, and the blower 27 is disposed between the blower 26 and the blower 28. More specifically, in the present embodiment, as shown in FIG. 5, the blower 28 has two front and rear blower bodies 28 a and 28 b. Although illustration is omitted, similarly, each of the fans 26 and 27 has two front and rear fan bodies. Each blower body in the blowers 26 to 28 has an impeller and a rectangular frame-shaped support member that rotatably supports the impeller. In the present embodiment, the entire upper surface of the booth 11 is occupied by a total of six support members included in the three blowers 26 to 28.

  On the other hand, suction and discharge ports 36 to 38 are provided on the bottom surface of the booth 10 corresponding to the fans 26 to 28. As shown in FIG. 5, the suction / discharge port 38 includes two front and rear openings 38 a and 38 b. Although not shown, the suction / discharge ports 36 and 37 each include two front and rear openings. Also in the present embodiment, the blower 26 and the suction outlet 36 are positioned so as to face each other in the vertical direction (vertical direction). Similarly, the blower 27 and the suction / discharge port 37 are positioned so as to face each other in the vertical direction (vertical direction). Similarly, the blower 28 and the suction / discharge port 38 are positioned so as to face each other in the vertical direction (vertical direction).

  The airflow that has passed through the suction / discharge ports 36 to 38 flows further downstream through a known filter member (not shown). The filter member captures dust contained in the airflow that has passed.

  Here, the suction discharge port 36 is provided for the region N1 in the vicinity of the belt conveyor gear group 201, and the region N1 in the vicinity of the belt conveyor gear group 201 is in a negative pressure state. . Similarly, the suction discharge port 38 is provided for a region N2 in the vicinity of the belt conveyor gear group 202, and the region N2 in the vicinity of the belt conveyor gear group 202 is in a negative pressure state. .

  Next, the effect | action of the ventilation type dust collector 4 of this Embodiment is demonstrated.

  The belt conveyor gear groups 201 and 202 generate dust made of stainless steel (SUS304, SUS305), chrome molybdenum steel (SCM415), or the like as a result of operation.

  The generated dust is scattered from the belt conveyor gear groups 201, 202, but the belt conveyor gear groups 201, 202 are covered by the booth 11, so that they are prevented from scattering outside the booth 11. The dust inside the booth 11 is efficiently guided to the suction discharge ports 36 to 38 by the airflow flowing from the blowers 26 to 28 toward the suction discharge ports 36 to 38. And the dust which passed through the suction discharge ports 36-38 is collected by the filter member ahead of the suction discharge ports 36-38.

  Here, in the present embodiment, a suction discharge port 36 is provided in a region N1 in the vicinity of the belt conveyor gear group 201 separated by the partition wall 91, and air (gas) is supplied from the region N1 through the suction discharge port 36. By suctioning and exhausting, the region N1 is in a negative pressure state. For this reason, dust is prevented from diffusing to the region F far from the region N1.

  In addition, in the present embodiment, the partition wall 91 rises in a direction inclined outward in the left-right direction and narrows the flow path area, so that the airflow from the blower 26 hardly flows into the region N1 and enters the region F. Easy to flow in. Thereby, the region N1 is more likely to have a negative pressure than the region F. This reliably prevents the dust from diffusing from the region N1 to the region F.

  Similarly, in the present embodiment, a suction discharge port 38 is provided in a region N2 in the vicinity of the belt conveyor gear group 202 separated by a partition wall 92, and air (gas) is supplied from the region N2 via the suction discharge port 38. By suctioning and exhausting, the region N2 is in a negative pressure state. For this reason, dust is prevented from diffusing to the region F far from the region N2.

  In addition, in the present embodiment, the partition wall 92 rises in the direction inclined in the left-right direction and narrows the flow path area, so that the airflow from the blower 28 hardly flows into the region N2 and enters the region F. Easy to flow in. Thereby, the region N2 is more likely to have a negative pressure than the region F. This reliably prevents dust from diffusing from the region N2 to the region F.

  As described above, according to the present embodiment, dust generated in the belt conveyor gear groups 201 and 202 is prevented from being scattered outside the booth 11, and the dust inside the booth 11 28 is efficiently guided to the suction and discharge ports 36 to 38 by the airflow flowing from the suction port 28 to the suction and discharge ports 36 to 38. Therefore, by using a known filter member in combination, dust can be effectively collected regardless of physical properties. .

  In addition, partition walls 91 and 92 are provided, and air (gas) is sucked and exhausted from the regions N1 and N2 in the vicinity of the belt conveyor gear groups 201 and 202 through the suction discharge ports 36 and 38, thereby being used for the belt conveyor. Regions N1 and N2 in the vicinity of the gear groups 201 and 202 are in a negative pressure state. For this reason, it is possible to prevent dust from diffusing from the regions N1 and N2 near the belt conveyor gear groups 201 and 202 to the region F far from the belt conveyor gear groups 201 and 202.

  Next, FIG. 6 is a figure corresponding to FIG. 5 about the ventilation type dust collector 5 of the 5th Embodiment of this invention. Hereinafter, the blowing type dust collector 5 of the fifth embodiment will be described with reference to FIG. 4 as appropriate.

  The blower type dust collector 5 of the present embodiment corresponds to the blower 29 on the rear surface of the booth 11 and the point that the blower 29 is provided on the front surface of the booth 11 and the blower is not provided on the upper surface of the booth 11. It differs from the ventilation type dust collector 4 of 4th Embodiment by the point by which the suction discharge port 39 is provided.

  Other configurations are the same as those of the blow type dust collector 1 of the fourth embodiment. In FIG. 6, the same components as those in the fourth embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  The effect | action of the ventilation type dust collector 5 of this Embodiment is demonstrated. The generated dust is scattered from the belt conveyor gear groups 201, 202, but the belt conveyor gear groups 201, 202 are covered by the booth 11, so that they are prevented from scattering outside the booth 11. Further, the dust inside the booth 11 is efficiently guided to the suction discharge port 39 by the airflow flowing from the blower 29 toward the suction discharge port 39. And the dust which passed through the suction discharge port 39 is collected by the filter member ahead of the suction discharge port 39.

  Here, in the present embodiment, the suction / discharge port 38 functions as an auxiliary suction / discharge port that receives the airflow from the blower 29 directly, instead of receiving it. A suction / discharge port 38 is provided in a region N2 in the vicinity of the belt conveyor gear group 202 separated by the partition wall 92, and air (gas) is sucked and exhausted from the region N2 through the suction / discharge port 38. Region N2 is in a negative pressure state. For this reason, dust is prevented from diffusing to the region F far from the region N2.

  In addition, in the present embodiment, the partition wall 92 rises in the direction inclined in the left-right direction and narrows the flow path area, so that the airflow from the blower 28 hardly flows into the region N2 and enters the region F. Easy to flow in. Thereby, the region N2 is more likely to have a negative pressure than the region F. This reliably prevents dust from diffusing from the region N2 to the region F. In FIG. 6, the partition wall 91 is not shown, but the same effect as the partition wall 92 side can be obtained on the partition wall 91 side.

  As described above, according to the present embodiment, dust generated in the belt conveyor gear groups 201 and 202 is prevented from scattering outside the booth 11, and dust inside the booth 11 is removed from the blower 29. Since the airflow flowing toward the suction / discharge port 39 is efficiently guided to the suction / discharge port 39, dust can be effectively collected regardless of physical properties by using a known filter member in combination.

  In addition, partition walls 91 and 92 are provided, and air (gas) is sucked and exhausted from the regions N1 and N2 in the vicinity of the belt conveyor gear groups 201 and 202 through the suction discharge ports 36 and 38, thereby being used for the belt conveyor. Regions N1 and N2 in the vicinity of the gear groups 201 and 202 are in a negative pressure state. For this reason, it is possible to prevent dust from diffusing from the regions N1 and N2 near the belt conveyor gear groups 201 and 202 to the region F far from the belt conveyor gear groups 201 and 202.

1, 2, 3, 4, 5 Blower type dust collector 10, 11 Booth 21, 22, 23, 24, 25, 26, 27, 28, 29 Blower 31, 32, 33, 34, 35, 36, 37, 38, 39 Suction discharge port 61, 62 Adhesive sheet 71, 72 Magnet device 81, 82 Standing wall portion 91, 92 Partition 101, 102 Metal gear group (dust generation mechanism)
201, 202 Belt conveyor gear group (dust generation mechanism)
203 Shaft 204 Roller N1, N2 Area near the belt conveyor gear group F Area far from the belt conveyor gear group

Claims (7)

A blower type dust collector provided for a dust generation mechanism that generates dust,
A booth surrounding the dust generation mechanism,
A blower that is provided on one side of the booth and blows an airflow from the outside of the booth to the inside of the booth,
A suction discharge port that is provided on the other side facing the one side of the booth and sucks and exhausts the airflow blown by the blower;
A blower type dust collector characterized by comprising: The blast type dust collector according to claim 1, wherein the booth is formed in a substantially rectangular parallelepiped shape. One side of the booth is the upper surface of the booth,
The blower type dust collector according to claim 1 or 2, wherein the other side surface of the booth is a bottom surface of the booth. Inside the booth, a partition for separating the area near the dust generation mechanism and the area far from the dust generation mechanism while maintaining mutual communication is provided,
4. The suction discharge port is provided for a region in the vicinity of the dust generation mechanism so that the region in the vicinity of the dust generation mechanism is in a negative pressure state. The ventilation type dust collector according to any one of the above. One side of the booth is the front of the booth,
The blower type dust collector according to claim 1 or 2, wherein the other side surface of the booth is a rear surface of the booth. Inside the booth, a partition for separating the area near the dust generation mechanism and the area far from the dust generation mechanism while maintaining mutual communication is provided,
The auxiliary suction exhaust port is provided for the area in the vicinity of the dust generation mechanism, and the area in the vicinity of the dust generation mechanism is in a negative pressure state. The ventilation type dust collector as described. The blast type dust collector according to any one of claims 1 to 6, wherein the booth surrounds a metal gear which is a part of a transport mechanism as a dust generation mechanism.

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