JP6140346B1 - Dust collector and dust collector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dust collecting body and a dust collecting device which can be installed in a narrow site. A dust collection body according to the present invention is a dust collection body that is used by being attached to an exhaust side of a blower, and is a collection body that collects dust that passes through a hollow main body having an inlet and an outlet. It is equipped with a dust body. The main body has a cylindrical shape that expands gradually from the inlet side toward the outlet side. The dust collector was removable from the main body. The dust collector was provided with a filter and a deformation prevention material. In the dust collector of the present invention, the dust collecting body is provided on the exhaust side of the blower. Legs that support the blower and the dust collection body horizontally or substantially horizontally may be provided on or both of the blower and the dust collection body. The blower and the dust collection body may be arranged on a pedestal so that both or either of the blower and the dust collection body can be held by a holding body provided on the pedestal. [Selection] Figure 1

Description

  The present invention includes, for example, welding fumes generated during arc welding, dust generated at civil engineering work sites such as tunnels, solvents generated during painting work, and the like (hereinafter collectively referred to as “dust”). The present invention relates to a dust collecting body used for collection and a dust collecting apparatus including the dust collecting body.

  “Pneumoconiosis” is known as a disease affecting workers who work in an environment where inorganic matter such as small dust and metal particles or mineral dust is generated. The pneumoconiosis is a disease in which lung tissue becomes fibrotic and hard and loses elasticity when a large amount of inorganic or mineral dust is inhaled. Since pneumoconiosis can cause complications such as shortness of breath, cough, sputum, bronchitis, lung cancer, and pneumothorax, the Ministry of Health, Labor and Welfare is promoting measures (“Ministry of Health, Labor and Welfare website 8th Dust Refer to "General measures for preventing failures").

  Welding fume is a substance that contributes to the pneumoconiosis. Welding fumes are micron-sized metal dust that is generated during welding (arc welding), and penetrate into the alveoli deep in the lungs and sink, causing respiratory abnormalities such as cough, sputum, wheezing, and shortness of breath. Conventionally, as a device for preventing such adverse effects on the human body due to the suction of the welding fume, a welding fume wet collecting device (Patent Document 1) for collecting the welding fume with a liquid, and a welding flue gas dust collecting device ( Patent Document 2) and the like have been proposed. The present applicant has also proposed a dust collection device (Patent Document 3) that captures dust with fine bubbles.

JP-A-6-292970 JP-A-7-040055 JP 2014-237108 A

  The “welding fume wet collection device” described in Patent Document 1 requires a device for making the processing liquid into a rocking foam shape, and has a drawback that the structure is complicated. If the structure is complicated, it is expensive and time-consuming to manufacture and maintain. In addition, the complexity of the structure makes it difficult to reduce the size of the apparatus, and there is a problem that it cannot be installed depending on the size of the site.

  In the “welded flue gas dust collector” described in Patent Document 2, since the exhaust gas taken into the intake chamber is brought into contact with the liquid as it is, the contact area between the exhaust gas and the liquid is small, and there is room for improvement in the collection efficiency.

  The dust collection device described in Patent Document 3 can effectively collect dust, but has a drawback that it is difficult to install in a narrow site such as in a steel pipe.

  The problem to be solved by the present invention is a dust collector that has a simple structure, is easy to manufacture and maintain, can be miniaturized, can be installed in a narrow field, and contributes to a reduction in maintenance costs. It is to provide.

[Dust collector]
The dust collection body of the present invention is a dust collection body used by being attached to the exhaust side of a portable blower, wherein the portable blower comprises a cylindrical body and a handle provided on the body , a portable with the handle, a carry can be sized in the steel pipe, the dust collecting body, a hollow body having an inlet and an outlet, the dust passing through the said body by the blowing of the blower The main body has a cylindrical shape on the inlet side , and the main body has a cylindrical shape in which the inner diameter gradually widens from the inlet side toward the outlet side, and the outlet side diameter is larger than the inlet side diameter. the size rather, to the inlet side, the cylindrical mounting portion for covering the outside of the body of the portable type blower is provided, wherein the mounting portion communicates with the exhaust side of the fuselage interior circular cylindrical of the blower of the body body to And fittable on the outside of the discharge side, fitted can be attached by fasteners to the discharge side, the portable blower body dust collecting body mounted on the discharge side of the fuselage of the portable blower Dust that protrudes outward from the end on the discharge side and passes through the fuselage of the portable blower can be captured by a dust collector located outside the fuselage of the portable blower, and the dust collector is the blower A filter capable of collecting the dust sucked in is attached to the deformation prevention material by being sandwiched between deformation prevention materials having a large number of through holes from the exhaust inflow side and the exhaust outflow side. The body is detachable from the outlet side of the main body.

An inner support member that supports the inside of the dust collector and / or an outer support member that supports the outside of the dust collector, the inner support member and the outer support member both having through holes; You can also The main body may be formed in a cylindrical shape that gradually and continuously expands from the inlet side to the outlet side. The outer support member can be attached to the outlet side of the main body so as to be opened and closed. The filter may be washable in a state protected by a deformation preventing material.

[Dust collector]

The dust collector of the present invention captures and collects dust with a dust collector, and is provided with one of the dust collectors on the exhaust side of a portable blower. The portable blower has a outer shape cylindrical body, provided with a handle provided on the body, a portable with the handle, a carry can be sized in the steel pipe, a portable outer shape cylindrical a type blower, attached by fasteners attaching portion of the dust collection collecting body is fitted on the discharge side of the circular cylindrical body of the blower, the cylindrical inner space of the main body of the dust collector collecting body in which communication with the exhaust side of the circular cylindrical body of the blower. Legs that support the blower and the dust collection body horizontally or substantially horizontally may be provided on or both of the blower and the dust collection body. The blower and the dust collection body may be arranged on a pedestal so that both or either of the blower and the dust collection body can be held by a holding body provided on the pedestal.

[Dust collector]
The dust collection body of the present invention has the following effects, for example, depending on its configuration.
(1) Since it is directly attached to the exhaust side of the blower, it does not increase in size when attached to the blower and is easily installed in a narrow work site.
(2) In the case of a cylindrical shape that expands gradually from the inlet side toward the outlet side, even if a dust collecting body is attached to the exhaust side, the original performance (ventilation capacity) of the blower is hardly impaired.
(3) When the outlet side is widened, the dust collector can be easily replaced.
(4) When the dust collector is provided with a filter and a deformation preventing material, it is possible to prevent the filter from being deformed by wind force and the accompanying dust leakage.
(5) When the filter can be cleaned while being protected by the deformation preventing material, the cleaning operation is easy. In addition, since the filter cannot be washed by scum, structural damage or deformation of the filter due to scouring can be prevented.

[Dust collector]
The dust collector of the present invention has the following effects, for example, depending on its configuration.
(1) Since any one of the dust collection bodies is provided in the blower, the same effect as the dust collection body is achieved.
(2) When legs are provided on either or both of the blower and dust collection body so that the blower and dust collection body can be supported horizontally or substantially horizontally, it is stable because it is difficult to tilt or fall during use. Dust collection is possible.
(3) When the pedestal is provided with a holding body capable of holding the blower and the dust collection body, the blower and the dust collection body are more stable.

The perspective view which shows an example of the dust collection body and dust collector of this invention. Explanatory drawing of the dust collection body and dust collector shown in FIG. Explanatory drawing of the dust collection body and dust collector shown in FIG. Explanatory drawing which shows the other examples of the dust collection body and dust collector of this invention. The perspective view which shows the other example of the dust collection body and dust collector of this invention. Explanatory drawing of the usage example of the dust collector of this invention.

(Embodiment 1)
An example of the dust collection body 30 and the dust collector 10 of the present invention will be described with reference to the drawings. As an example, the dust collector 10 shown in FIGS. 1 to 3 includes a blower 20 and a dust collection body 30.

  The blower 20 is for existing air supply / exhaust, and for example, a portable type air supply / exhaust fan (product number: SJF-300RS) manufactured by Suiden Co., Ltd. can be used. The blower 20 may be other than this, but it is preferable to use a blower 20 that is compact enough to be carried (portable size).

  The dust collecting body 30 is used by being attached to the exhaust side of the blower 20, and as shown in FIGS. 2 and 3, a hollow main body 1 having an inlet 1 a and an outlet 1 b, and the main body 1. A dust collector 2 disposed inside is provided. In this embodiment, the inner support member 3 is provided inside the dust collector 2 and the outer support member 4 is provided outside.

  The main body 1 has a shape that expands gradually from the inlet 1a side toward the outlet 1b side. By making the main body 1 into such a shape, even if the dust collection body 30 of the present invention is attached to the exhaust side of the blower 20, the original ventilation capability of the blower 20 can be maintained.

  A cylindrical mounting portion 1 c that covers the exhaust side of the blower 20 is provided on the inlet 1 a side of the main body 1. The mounting portion 1c is provided with a large number of fasteners (wing screws) 5 at intervals in the circumferential direction. After the mounting portion 1c is placed on the exhaust side of the blower 20, the fasteners 5 are tightened to remove dust. The collection body 30 can be fixed to the blower 20. The structure of the mounting portion 1c shown in the figure is an example, and may be a structure other than a structure that covers the exhaust side as long as it is attached to the exhaust side of the blower 20. The stopper 5 may be provided on the blower 1 side.

An inner support 3 for preventing the dust collector 2 from tilting or falling is provided at the end of the main body 1 on the outlet 1b side. As an example, the inner support member 3 shown in FIG. 2 is a circular wire mesh having substantially the same area as the inner diameter of the outlet 1 b of the main body 1, and is fixed to the inner periphery of the main body 1 by welding. For the inner support member 3, an expanded metal, a punching metal, or the like can be used. The shape of the illustrated inner support member 3 is an example, and other shapes may be used as long as the dust collector 2 can be supported from the inner side. For example, a ring projecting inward from the inner peripheral surface of the main body 1, or one or more projecting pieces projecting inward from the inner peripheral surface of the main body 1 may be used. When the inner support material 3 is a ring or a projecting piece, most of the trapping surface of the dust collector 2 is exposed (air is not obstructed), so the air flow is smooth and the dust trapping efficiency is expected to improve. it can. In addition, the inner side support material 3 should just be provided as needed, and the dust collector 2 itself can be provided with an alternative and can be omitted.

  The dust collector 2 collects dust sucked into the main body 1. As an example, the dust collector 2 shown in FIG. 2 includes a circular filter 2a and a deformation preventing material 2b disposed on both surfaces of the filter 2a.

  The filter 2a is a member that collects dust, and an existing nonwoven fabric or the like can be used. It is preferable to use a filter that can be washed and used repeatedly. The deformation preventing material 2b protects the filter 2a from being deformed by wind force generated by the blower 20 or the like. In this embodiment, a wire mesh similar to that of the inner support material 3 is used as the deformation preventing material 2b. An expanded metal, a punching metal, etc. can also be used for the deformation preventing material 2b. As long as the filter 2a is strong enough to protect the filter 2a, not only a metal but also a net (mesh material) made of plastic or other material can be used. The filter 2a and the deformation preventing material 2b on both sides thereof are integrated by sewing or the like.

  The outer support 4 is for preventing the dust collector 2 from falling or blowing away by the wind sent from the blower 20. As an example, the outer support member 4 shown in FIG. 2 includes a circular mesh member 4a having the same area as the inner diameter of the outlet 1b of the main body 1, and a ring-shaped peripheral wall 4b standing from the outer peripheral edge of the mesh member 4a. . The outer support member 4 of this embodiment is attached to the main body 1 by a hinge 6 attached to the peripheral wall 4b.

The peripheral wall 4 b is slightly larger than the outlet 1 b side of the main body 1, and the peripheral wall 4 b is covered with the outer side of the outlet 1 b of the main body 1. Similar to the inner support member 3, an expanded metal, a punching metal, or the like can be used for the outer support member 4. Moreover, the shape of the outer side support material 4 to show in figure is an example, and if it is a shape which can support the dust collector 2 from an inner side, shapes other than this may be sufficient. For example, a ring or a projecting piece similar to the inner support member 3 may be used. In addition, the outer side support material 4 should just be provided as needed, and can replace it with the thing which replaces this in the dust collector 2 itself.

  In this embodiment, both the blower 20 and the dust collecting body 30 are provided with legs 8 so that both are horizontal. The leg 8 may be provided with an adjuster function capable of adjusting the height. The legs 8 may be provided as necessary, and may be omitted if unnecessary. In addition, when using the air blower 20 provided with a leg, the leg can be used as the leg 8 in the present invention, the leg can be removed and another leg 8 can be provided, A member can be attached to form the leg 8.

(Embodiment 2)
Other examples of the dust collection body 30 and the dust collector 10 of the present invention will be described with reference to FIG. The basic structure of the dust collection body 30 and the dust collector 10 of this embodiment is the same as that of the first embodiment. The difference is that the dust collector 2 can be directly attached to and detached from the main body 1 and the inner support member 3 and the outer support member 4 are omitted. Here, description of common parts is omitted, and different parts will be described.

  As in the first embodiment, the dust collector 2 of this embodiment includes a circular filter 2a and a deformation preventing material 2b disposed on both surfaces of the filter 2a, which are integrated by sewing or the like. . As shown in FIG. 4, a connecting member 9 is provided on the main body 1 and the dust collector 2, and both can be connected by this connecting member 9. An existing member can be used as the connecting member 9. The dust collector 2 can be provided inside the main body 1 or outside the main body 1, but in any case, dust sucked into the main body 1 does not escape from the outlet 1 b side of the main body 1. Care should be taken so that there is no gap.

(Embodiment 3)
Other examples of the dust collection body 30 and the dust collector 10 of the present invention will be described with reference to FIG. The basic structures of the dust collecting body 30 and the dust collecting device 10 of this embodiment are the same as those of the first and second embodiments. The difference is that the blower 20 and the dust collecting body 30 are arranged on the pedestal 7, and the blower 20 on the pedestal 7 is held by the holding body 7 b provided on the pedestal 7. Here, description of common parts is omitted, and different parts will be described.

  The pedestal 7 shown in FIG. 5 includes a downward U-shaped holding body 7b on the upper surface side of a rectangular mounting plate 7a on which the blower 20 and the dust collector 10 are mounted. The holding body 7b is wide enough to hold the outer periphery of the cylindrical body portion of the blower 20. Providing the pedestal 7 has an advantage that it is easy to install even when the installation location is not flat. In this embodiment, the case 7 is provided with a holding body 7b for holding the blower 20 on the pedestal 7. However, instead of or together with the holding body 7b for holding the blower 20, the dust collecting body 30 is provided. It is also possible to provide a holding body 7b for holding the. Note that the pedestal 7 may be provided as necessary, and can be omitted if unnecessary.

(Other embodiments)
In the above-described embodiment, the case where the main body 1 has a cylindrical shape that widens toward the outlet 1b is described as an example. However, the main body 1 has an elliptical cylindrical shape or a rectangular tube shape that widens toward the outlet 1b. There may be. Depending on the case, the main body 1 may have a cylindrical shape, an elliptical cylindrical shape, a rectangular cylindrical shape, or the like whose thickness is uniform (not changed) from the inlet 1a side to the outlet 1b side. Further, the main body 1 may be configured such that the mounting portion 1c is thin and the other portions are thicker than the mounting portion 1c (the thickness of the mounting portion 1c and other portions is different). Specifically, cylindrical members having different thicknesses are prepared for the mounting portion 1c and other portions, a flat plate having a through hole is fixed on the latter inlet 1a side, and the periphery of the through hole of the flat plate is fixed. The main body 1 can be formed by fixing the former outlet 1b side.

  In the above embodiment, the case where both the inlet 1a side and the outlet 1b side of the main body 1 have the same shape (similar shape) is taken as an example, but the inlet 1a side and the outlet 1b side can also have different shapes. For example, the inlet 1a side may be circular and the outlet 1b side may be elliptical, the inlet 1a side may be circular and the outlet 1b side may be rectangular (for example, a quadrangle). In this case, a flat plate provided with a through-hole is fixed to the inlet side of the elliptical cylinder or the rectangular tube that is gradually widened toward the outlet 1b, and the cylindrical mounting portion 1c is fixed to the periphery of the through-hole. Thus, the main body 1 can be obtained.

  In the said embodiment, although the case where one dust collector 2 is provided inside the main body 1 is taken as an example, two or more dust collectors 2 can also be provided. In this case, two or more dust collectors 2 having the same structure can be provided, or two or more dust collectors 2 having different structures can be provided. When disposing different ones, the filter 2a of one dust collector 2 can be a coarser one than the filter 2a of the other dust collector 2. When two or more dust collectors 2 are provided, the dust collectors 2 can be provided with an interval or without an interval.

  In the embodiment, the case where the dust collector 2 is provided on the outlet 1b side of the main body 1 is taken as an example. However, the dust collector 2 is other than the central portion of the main body 1 and the outlet 1b side, such as the inlet 1a side than the central portion. It can also be provided at the location. In some cases, it may be provided outside the outlet 1 b of the dust collector 2 and connected to the main body 1.

  In the embodiment, the case where two wire meshes are used as the deformation preventing material 2b is taken as an example. However, the deformation preventing material 2b is formed by bending one wire mesh or the like so that both surfaces of the filter 2a can be held. There may be.

(Example of use: Dust collection)
The usage example of the dust collector 10 of this invention is demonstrated with reference to FIG. Here, the case where the welding fume X which arises when welding work in the steel pipe Y is collected is demonstrated as an example.
(1) The dust collector 10 of the present invention is disposed in the steel pipe Y.
(2) The blower 20 of the dust collector 10 is turned on to perform welding work.
(3) The welding fume X generated by the welding operation is drawn into the blower 20 by the suction force of the blower 20, passes through the blower 20, and is sent to the dust collecting body 30 together with the air.
(4) The welding fume X that has reached the dust collecting body 30 is sent to the outlet side and collected by the dust collecting body 2 arranged on the outlet 1b side. At this time, the air passes through the dust collector 2 and is discharged out of the dust collector 30.

(Usage example: Filter cleaning)
The dust collector 2 that collects the welding fume X is removed from the main body 1 and deformed by attaching the filter 2a sandwiched between the deformation preventing materials 2b to the cleaning liquid as it is (while sandwiched between the deformation preventing materials 2b). Can be cleaned without any problems. After the cleaning, the dust collector 2 can be dried by setting the dust collector 2 on the main body 1 and turning on the blower 20 where there is no dust.

  The dust collection body 30 and the dust collector 10 of the present invention can be used for collecting dust generated at various work sites, but particularly for collecting dust at narrow work sites such as in the steel pipe Y. It can be used suitably.

DESCRIPTION OF SYMBOLS 1 Main body 1a Inlet 1b Outlet 1c Mounting part 2 Dust collector 2a Filter 2b Deformation prevention material 3 Inner support material 4 Outer support material 4a Net material 4b Peripheral wall 5 Stopper (wing screw)
6 Hinges 7 Base 7a Mounting plate 7b Holding body 8 Leg 9 Connecting member 10 Dust collector 20 Blower 30 Dust collection body X Welding fume Y Steel pipe

Claims (8)

It is a dust collector that is attached to the exhaust side of a portable blower and used.
The portable blower includes a body having a cylindrical outer shape and a handle provided on the body, and can be carried with the handle, and is a size that can be carried into a steel pipe.
The dust collection body includes a hollow main body having an inlet and an outlet, and a dust collector that collects dust passing through the main body by blowing air from the blower,
The main body has a cylindrical shape on the inlet side, and has a cylindrical shape with a widening from the inlet side toward the outlet side, the diameter of the outlet side being larger than the diameter of the inlet side,
On the inlet side, a cylindrical mounting portion is provided to cover the outside of the fuselage of the portable blower,
The mounting portion can be fitted to the outside of the discharge side of the fuselage so that the internal space of the main body communicates with the exhaust side of the cylindrical fuselage of the blower, and attached to the fitted discharge side with a stopper. Can
The dust collecting body mounted on the discharge side of the fuselage of the portable blower protrudes outside the end of the discharge side of the fuselage of the portable blower, and the dust passing through the fuselage of the portable blower is transferred to the portable blower. Can be captured by a dust collector located outside the fuselage of the blower,
The dust collector is attached to the deformation prevention material by sandwiching a filter capable of collecting the dust sucked by the blower from the exhaust inflow side and the exhaust outflow side with a deformation prevention material having a large number of through holes. And
The dust collector is removable on the outlet side of the main body,
A dust collector characterized by that. The dust collector according to claim 1,
An inner support material that supports the inside of the dust collector and / or an outer support material that supports the outside of the dust collector,
The inner support member and the outer support member are both provided with through holes.
A dust collector characterized by that. In dust collecting body according to claim 2 Symbol placement,
The outer support member is attached to the outlet side of the main body so as to be openable and closable.
A dust collector characterized by that. In the dust collection object according to any one of claims 1 to 3 ,
The main body has a cylindrical shape that gradually expands continuously from the inlet side to the outlet side.
A dust collector characterized by that. In the dust collection body according to any one of claims 1 to 4,
The filter can be washed in a state protected by a deformation prevention material.
A dust collector characterized by that. In a dust collector that captures and collects dust with a dust collector,
The dust collection body according to any one of claims 1 to 5 is provided on the exhaust side of the portable blower,
The portable blower includes a body having a cylindrical outer shape and a handle provided on the body, and can be carried with the handle, and is a size that can be carried into a steel pipe.
The mounting portion of the dust collection body is fitted to the discharge side of the cylindrical body of the blower and attached by a stopper, and the internal space of the cylindrical body of the dust collection body is the cylindrical shape of the blower. Communicating with the exhaust side of the fuselage,
A dust collector characterized by that. The dust collector according to claim 6, wherein
Legs for supporting the blower and the dust collection body horizontally or substantially horizontally are provided on both or either of the blower and the dust collection body,
A dust collector characterized by that. The dust collector according to claim 6 or 7,
The blower and dust collector are placed on the pedestal,
The pedestal includes a holding body capable of holding either or both of the blower and the dust collection body,
A dust collector characterized by that.

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