JP7048089B2 - Suction device and lightweight object suction processing device using it - Google Patents

Description

The present invention relates to a suction device that efficiently sucks dust, particularly a suction device suitable for sucking a lightweight object. Further, the present invention relates to a lightweight material suction processing device using the suction device.

Patent Document 1 (Japanese Unexamined Patent Publication No. 6-238248) aims to provide a lightweight material selective suction device capable of selectively sucking only a lightweight material, and the lightweight material selective suction device is described as a lightweight material selective suction device. A traveling unit that feeds on the surface to be sucked to suck a lightweight object, a suction duct that is placed on the traveling unit and has a suction port facing the surface to be sucked, and a suction port in the first region of the suction port of the suction duct. The second region of the suction port of the suction duct has a turbulence generating means for generating turbulence from the suction port to the suction surface on the surface to be sucked, and the turbulence generating means is used. A lightweight object that is damaged by the turbulence is blown up to the surface to be sucked, and the lightweight object is selectively sucked by the wind in the first direction by the turbulence generating means.

Patent Document 2 (Japanese Unexamined Patent Publication No. 10-193359) aims to provide a method and an apparatus for improving the sorting and dispersion efficiency upstream of the sorting device and easily improving the recovery rate of the wind force sorting device. In this device and method, a crusher that dismantles the crushed material having a heat insulating material containing freon as a constituent material, a belt conveyor that transports crushed pieces of the crushed material, and an arrangement at the end of the belt conveyor. In a wind separation device equipped with a wind cylinder that is connected to an air transport pipe that uses a dust collector as a wind source and separates lightweight objects such as heat insulating materials and intermediate heavy objects such as plastic collected by the air transport pipe. Alternatively, an electrostatic adsorption device equipped with an electrode plate in which a more conductive plate is separated by an insulator and a thin film having a high relative dielectric constant is applied to the surface, and a device for energizing the conductive plate of the electrode plate with direct current in summer. It is arranged on the upper part of the belt conveyor in the vicinity of the air transport pipe. The wind power separating device disclosed in Patent Document 2 depends on the wind force of the dust collector, the lightweight material is scattered to the upper dust collector, and the heavy material is downward along the floor surface of the inclined type wind cylinder and the zigzag type wind cylinder. It is disclosed that the heavy goods are sorted at the collection port.

Japanese Unexamined Patent Publication No. 2000-178996 Japanese Unexamined Patent Publication No. 2006-117979

Patent Document 1 allows the air to flow in the suction duct direction by rotating the propeller in order to selectively remove only lightweight objects such as cigarettes, dust, and dead leaves scattered on the railroad track under the railroad platform. An air flow and an air flow that collides with the edge of the bent portion and flows in the direction opposite to the suction are generated, thereby generating a turbulent air flow so that the buried lightweight object can be lifted up. Since sand and pebbles with a weight less than that of the lightweight material contained in the material are also sucked, there is a problem that the propeller is damaged by these solid materials.

In Patent Document 2, lightweight and heavy objects are sucked at the same time by the suction force of the dust collector, the lightweight object raises the inclined wind cylinder and the zigzag type wind copper, and the heavy object is the floor of the inclined type wind cylinder and the zigzag type wind cylinder. The two are separated by falling downward along the surface, but the lightweight and heavy objects that have risen up the air transport pipe by the suction force of the dust collector have the same suction force as the inclined wind cylinder and zigzag. It is difficult to sort efficiently in the type wind cylinder.

Therefore, the present invention provides a suction device capable of efficiently sucking dust regardless of a propeller, and also provides a lightweight object suction processing device equipped with this suction device.

The suction device according to the present invention is a suction pipe having suction ports and discharge ports at both ends thereof, and an air passage located on the outer periphery of the suction pipe and whose cross section is reduced toward the peripheral edge of the discharge port of the suction pipe. Is provided with a blower pipe that blows air from the peripheral edge of the discharge port of the suction pipe toward the discharge direction of the suction pipe, and a blower means for sending air to the blower pipe, and discharges the suction pipe. A plurality of notches are formed on the peripheral edge of the outlet at predetermined intervals in the circumferential direction of the outlet. It is desirable that the blowing means is an electric motor.

As a result, when air is sent to the blower pipe by the blower means, the air in the suction pipe is pulled and sucked into the suction port of the suction pipe by vigorously blowing out the air from the peripheral edge of the discharge port of the suction pipe in the discharge direction. Force is generated.

Further, a notch having a predetermined shape, for example, a semicircular shape, a semi-elliptical shape, a wedge-shaped shape, or a rectangular shape is formed on the peripheral edge of the discharge port of the suction pipe. The present inventor has found that the suction force of the suction pipe is increased by forming a notch on the peripheral edge of the discharge port of the suction pipe by the blower pipe. Although the principle is unknown, it is said that the amount of air taken up in the suction pipe increases due to the turbulent flow generated by the disturbance of the wind speed and the air volume of the air blown out to the periphery of the outlet of the suction pipe. Guess.

Further, since the suction force of the suction pipe is proportional to the air volume of the blower means, it is possible to change the suction amount of the suction pipe by adjusting the air volume of the blower means. Thereby, for example, when sucking a lightweight object such as a cigarette butt, it is possible to avoid sucking a heavy object such as a pebble by blowing a required amount of air. Further, when a plant is cut down, it is possible to suck only the felled branches and leaves by setting the air volume corresponding to the felling.

Further, according to the present invention, it is desirable that the air passage of the blower pipe is provided with an air rotation mechanism for spirally rotating the air blown by the blower means. As a result, a rotational force can be applied to the air blown from the blower pipe to the peripheral edge of the discharge port of the suction pipe, so that the suction force of the air in the suction pipe can be further improved.

Furthermore, it is desirable that the blower pipe is provided with an extension pipe that further extends from the portion corresponding to the discharge port of the suction pipe, and is provided with a damper mechanism for opening and closing the extension pipe. .. By providing a damper mechanism that opens and closes the extension pipe of the blower pipe, air can flow back to the suction pipe when the damper mechanism is closed, so that it can also be used as a blower device. In addition, when a lightweight object sucked into the suction tube is caught and the suction force is reduced, the substance caught by blowing air into the suction tube can be discharged, so that the suction force can be restored. Is.

Further, according to the present invention, the above-mentioned suction device according to the present invention, the flexible hose connected to the suction port of the suction tube of the suction device, and the dust storage space where the discharge port of the blower pipe of the suction device opens. It is desirable to provide a lightweight material suction processing device equipped with the above.

Further, by providing the lightweight material suction processing device on a loading platform such as a light truck, the lightweight material suction processing device can be made movable. In this case, a sirocco fan or the like as a blowing means can be directly connected to the engine of the vehicle and used.

Further, by providing an air purifying device on the downstream side of the lightweight material suction processing device, the discharged air can be purified.

As described above, since the suction device according to the present invention is not a propeller type, it has an effect that the sucked lightweight dust can be collected without being caught. Further, the suction force can be easily controlled by controlling the amount of air blown by the air blowing means, and in particular, the butts, branches and leaves, and papers can be efficiently sucked.

Further, according to the present invention, there is an effect that the suction device can be switched as a blower device with a simple structure.

FIG. 1A is a schematic plan view showing the configuration of the suction device according to the present invention, and FIG. 1B is a schematic front view of the suction device according to the present invention. FIG. 2 is an explanatory diagram showing an example in which an air rotating means is provided in a blower pipe of a suction device. It is explanatory drawing which showed the Example when the lightweight object suction processing apparatus which concerns on this invention is mounted on a light truck. It is explanatory drawing which showed the suction state of the said lightweight thing suction processing apparatus. It is explanatory drawing which showed the case where the said lightweight thing suction processing apparatus was put into the blast state. It is explanatory drawing which showed the example which added the air purification apparatus to the said lightweight thing suction processing apparatus.

Hereinafter, examples of the present invention will be described with reference to the drawings.

The suction device 1 according to the present invention is shown in FIGS. 1 (a) and 1 (b), for example, and is located on a suction tube 2 having a suction port 2a and a discharge port 2b at both ends and on the outer periphery of the suction tube 2. Then, an air passage 3 whose cross section is reduced toward the peripheral portion of the discharge port 2b of the suction pipe 2 is defined, and air is blown from the peripheral edge of the discharge port 2b of the suction pipe 2 toward the discharge direction of the suction pipe 2. A blower pipe 4 for blowing out and a blower device 5 for sending air to the 4 blower pipes are provided. An air outlet 7 is formed between the peripheral edge of the discharge port 2b of the suction pipe 2 and the end of the blower pipe 4. In this embodiment, the blower device 5 is a sirocco fan driven by an electric motor 9, and is connected to the blower pipe 4 via a connecting passage 6. In this embodiment, two small sirocco Although it is composed of fans, a large sirocco fan may be operated by one unit.

Further, the suction device 1 according to the present invention is characterized in that a plurality of notched portions 2c are formed at predetermined intervals in the circumferential direction of the discharge port 2b on the peripheral portion of the discharge port of the suction pipe 2. .. The cutout portion 2c has a semicircular shape in this embodiment, but may have a square shape, a wedge shape, or a square shape. By forming this notch portion 2C, turbulence can be generated in the air blown out from the air outlet 7 at the peripheral edge of the discharge port 2b of the suction pipe 2, so that the suction action in the suction pipe 2 is improved. It is something that can be made to do.

Further, in this embodiment, a connecting passage 6 for connecting the blower pipe 4 and the blower device 5 is provided. As a result, the air sent by the blower device 5 is sent to the blower pipe 4 through the connecting passage 6.

In the suction device 1 having the above configuration, when the blower device 5 is operated, air is sent from the connecting passage 6 to the blower pipe 4, and the peripheral portion of the discharge port 2b of the suction pipe 2 and the blower pipe 2 are connected to each other. From the air outlet 7 formed between them, the air compressed by the contraction of the air passage 3 and whose speed has increased is blown out in the exhaust direction, and the air in the suction pipe 2 is drawn out from the discharge port 2b accordingly. , A suction action is generated in the suction tube 2. Further, the suction action can be increased by the notch portion 2c formed in the peripheral portion of the discharge port 2b of the suction pipe 2.

Further, in this embodiment, as shown in FIG. 2, the air passage 3 of the blower pipe 4 may be provided with an air rotation mechanism 8 for spirally rotating the air blown by the blower device 5. Is. As a result, the air blown by the blower device 5 can be spirally swirled in the air passage 3, so that a large turbulent flow can be generated in the air blown from the air outlet 7, and thus suction is performed. The amount of air drawn out from the tube 2 is increased, and the suction action of the suction tube 2 can be further increased.

In the lightweight object suction processing device A shown in FIGS. 3 to 5, the suction device 1 according to the first embodiment described above is mounted on, for example, the loading platform 10A of the light truck 10, and the blower pipe 4 of the suction device 1 is sucked. An extension pipe 4a that further extends from the portion corresponding to the discharge port 2b of the pipe 2 is provided. Further, the suction device 1 according to the second embodiment is a sirocco fan that uses the traveling engine 11 of a light truck as a power source. In this embodiment, the same parts as those in the above-mentioned Example 1 and the parts having the same effect are designated by the same reference numerals, and the description thereof will be omitted.

Further, a flexible hose 20 is connected to the suction port 2a of the suction pipe 2 of the suction device 1, and is used for sucking, for example, felled branches and leaves. Further, the extension pipe 4a extends into a collection box 30 mounted on the truck bed 10A, and collects the branches and leaves sucked into the collection box 30. The extension tube 4a is formed with a discharge opening 4b for discharging the recovered lightweight material, so that the recovered lightweight material is discharged downward.

Further, a damper device 40 for opening and closing the extension pipe 4a is provided at a predetermined position of the extension pipe 4a. When the extension pipe 4a is opened by the damper device 40, the suction device 1 performs a normal suction operation as shown in FIG. 4, but the suction device is used when dust is clogged in the flexible hose 20. When the suction action of 1 is reduced, or when it is desired to use the suction device 1 as a blower device, the extension pipe 4a is closed by the damper device 40, so that the wind blown from the blower pipe 4 flows into the suction pipe 2. By backflowing, the dust clogged in the flexible hose 20 can be blown out to clear the clog, or the hose can be used as a blower.

The apparatus according to the third embodiment is shown in FIG. 6, for example, and is characterized in that the air purification apparatus B is provided on the wake side of the lightweight material suction processing apparatus A according to the second embodiment. In this embodiment, the same parts as those in the above-mentioned Examples 1 and 2 and the parts having the same effect are designated by the same reference numerals, and the description thereof will be omitted.

The air discharged after a lightweight object or the like is collected by the collection box 30 may contain a large amount of dust or the like, and particularly when the dust or the like is collected indoors, the air containing the dust or the like is discharged as it is. May pollute the indoor air.

Therefore, in this embodiment, the recovery box 30 is set as a closed space 30A, and the air in the recovery box 30 is sent to the air purification device B through the connecting passage 50 by the blower device 5A. In this case, the contaminated air in the recovery box 30 is caught in the air blown by the blower device 5A and sent from the connecting passage 50 to the upper part of the air purifying device B. Further, the suction device 1 may be housed in the sealed housing 60, and the air sucked by the blower device 5 may also be sucked through the filter 61 to prevent the intake of air including dust. Is.

A shower device 51 that sprays or discharges the cleaning liquid is provided above the air purification device B, and the cleaning liquid (for example, water) dropped through the upper filter 52 comes into contact with the air sent from the connecting passage 50. In the intermediate filter 53, the air and the cleaning liquid are sufficiently brought into contact with each other to remove contaminants from the air. The cleaning liquid that has passed through the intermediate filter 53 is dropped below the air purification device B and collected from the drain pipe 54. The air from which the pollutants have been removed is discharged into the room from the exhaust port 55 by the blower 5B.

As a result, the dust sucked by the suction device 1 can be collected and the air sucked at the same time can be purified.

1 Suction device 2 Suction pipe 2a Suction port 2b Discharge port 2c Notch 3 Air passage 4 Blower pipe 5 Blower 6 Connecting passage 7 Air outlet

Claims (4)

A suction pipe having suction ports and discharge ports at both ends and an air passage located on the outer periphery of the suction pipe and whose cross section is reduced toward the peripheral edge of the discharge port of the suction pipe are defined, and the suction pipe is discharged. It is provided with a blower pipe for blowing air from an air outlet formed between the peripheral portion of the outlet and a blower means for sending air to the blower pipe.
A suction device characterized in that a plurality of notches are formed at predetermined intervals in the circumferential direction of the discharge port on the peripheral edge of the discharge port of the suction pipe. The suction device according to claim 1, wherein the air passage of the blower pipe is provided with an air rotation mechanism that spirally rotates the air blown by the blower means. 1 . 2. The suction device according to 2. The suction device according to any one of claims 1 to 3, and the suction device.
A flexible hose connected to the suction port of the suction tube of the suction device,
A lightweight material suction processing device comprising a dust storage space in which a discharge port of a blower pipe of the suction device is opened.

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