JPH0643209Y2 - Dust removal equipment that is easily installed or removed in small waterways such as gutters - Google Patents

Description

[Detailed description of the device] "Industrial application field" The present invention is easily installed in small waterways such as gutters, drainage canals, etc. (hereinafter simply referred to as small waterways), and floating dust on the screen. When dust such as dust is trapped or when sediment such as sediment dust is accumulated on the screen bottom plate, etc., it is easily removed from the small water channel, and relates to a dust remover having both functions of a so-called dust removing screen and a groove exposure scoop. .

"Prior art" As is well known, the amount of waste flowing into wastewater drainage channels increases with urbanization in the surrounding area. Especially in small waterways, because the cross section of water flow is originally small, the effect of water flow obstruction is reduced. The large and excessively nourishing purified sewage discharged from households promotes the growth of weeds growing in waterways such as irrigation canals, which may lead to a further decrease in water-passing capacity.

Therefore, as a part of the improvement, the Applicant has filed
We are proposing a dust removal device to be installed in waterways such as rivers and gutters of −033568. The gist of this is to provide a screen bar with grooves that have concave grooves facing each other in the direction of flowing water and that have a specified strength and have a narrow width, and a screen that is arranged at appropriate intervals in the width direction of a water channel such as a side groove. A rake having rake teeth and a rake bottom plate inserted in the concave groove of the grooved screen bar and in the gap between the grooved screen bars,
The rake teeth are configured to slide up in the concave groove of the grooved screen bar and in the gap between the grooved screen bars.

In addition, the conventional screen with a manual rake has a two-stage structure consisting of a screen usually installed in a waterway and a scraping screen with a sediment storage floor suspended in front of this screen (inflow direction). Device (for example, Japanese Patent No. 660914) and other primitive methods such as a scraping method using a rake are generally known.

Other similar technical literatures include Japanese Utility Model Publication No. 52-1435.
There is a screen for channel 9 and it is a frame pair consisting of upper and lower frames and both side frames, and a number of screen bars are erected from the upper and lower frames at appropriate intervals, and along the both side frames and the screen bars. And a dust scraping plate that moves up and down, and the dust scraping plate rises along both side frames and the screen rod, and the dust scraping plate that reaches the final raised position is located above the screen rod. It is to provide a practical screen that is easy to use and easy to install. In addition, as the technical literature, there are other technical literatures such as screens in the sewage treatment plant of JP-B-53-18985.

"Problems to be solved by the invention" The screen equipped with the above-mentioned manual rake is suitable for capturing and removing floating dust adhering to the screen surface, but it is still sufficient to remove sedimentation dust etc. However, the rake method using a rake entails a lot of energy and danger, and is very dangerous, especially when the water flow is strong. And, these are merely for the purpose of capturing and removing floating dust, etc., no particular consideration is given to the increase of pressure loss due to the decrease of the cross-sectional area of water flow, and the occurrence of overflow phenomenon. There is plenty of room for improvement.

In addition, the dust remover according to the applicant's application, which is installed in a waterway such as a river or a gutter, is a meaningful idea because the above-mentioned problems have been improved, but it is a one-touch installation in a small waterway or a small waterway. Since it cannot be removed, it is difficult to use it as a simple dust remover. Also in terms of economy, the mechanism is slightly complicated and therefore expensive, and is not suitable as a dust remover for small water channels.

Further, the device of the above-mentioned technical document is a system for installation in a water channel, and as a matter of course, it is impossible to remove it after mounting.

As described in detail above, in the conventional technique, the small water channel has both functions of a dust screen and a groove scoop, can be easily installed or removed, and can reliably capture and scrape floating dust and the like. At present, it cannot be said that the dust removal equipment is sufficient.

"Means for Solving Problems" In view of the above, the present invention can easily install or remove a dust remover having both functions of a dust remove screen and a groove exposure scoop in a small water channel. It has a structure that can and reliably collects and removes dust such as floating dust and sedimentary dust, and its gist is the screen bottom plate that comes into contact with the floor surface of a small waterway and the downstream end side of this screen bottom plate. (This downstream end side is the part of the screen bottom plate located on the downstream side when the dust removal device of the present invention is installed in a small waterway.) Its lower end is fixed and has a gentle inclination of less than 65 degrees. Both a screen in which grooved screen bars having rising grooves that are opposed to each other in the direction of running water are arranged at appropriate intervals in the width direction of the small water channel, and both upper and lower wall walls of the small water channel where the upper end of the screen is fixed. A screen mounting plate is Kauketamawa in section, in which has a structure consisting of a gripping rod which rises from this at a substantially central portion of the screen.

[Operation] Next, the operation of the present invention (dust trapping, dust removal) will be described. The screen bottom plate 6 is brought into contact with the subgrade 2 of the small water channel 1, and the screen mounting plate 10 is attached to the channel of the small water channel 1. When mounted on the road shoulders 3a and 4a of the walls 3 and 4, the screen 9 is installed in the small waterway 1 at a gentle inclination angle of 65 degrees or less (preferably about 20 to 30 degrees). This allows the screen 9
The water receiving opening of the concave groove 7 of the grooved screen bar 8 constituting the above is located in the direction opposite to the flowing water direction. In this case, since the water receiving area B of the grooved screen bar 8 is made as small as possible and the screen 9 is installed at a gentle inclination angle of less than 65 degrees, a sufficient water passage area can be secured and the pressure loss thereof can be secured. Can be made small and the overflow phenomenon can be prevented.

In this way, on the screen 9 installed, dust and the like floating in the water are removed from the grooved screen bar 8
It is captured in a substantially inverted U shape when viewed from above, while the roadbed 2
Settled dust such as sand, pebbles, wood pieces, metal pieces, etc. that are washed away is accumulated on the screen bottom plate 6.

In this case, since the screen 9 is installed at a gentle inclination angle of less than 65 degrees as described above, the screen loss is reduced and the floating dust floating in the water is captured by the screen 9 and then pushed up by the water flow. It is collected and accumulated on the upper part of the screen 9, and there is an effect that the surface of the screen 9 is constantly cleaned to reduce dust clogging (cleaning function described later).

This will become clear if you refer to the experimental data (development and performance of “ditch” dust screen for small waterways) of the property submission form to be submitted separately. In addition, the above-mentioned cleaning function on the screen 9 surface is more effective when the flow velocity is 0.5 m / sec or more, and is extremely effective only during floods in which a large amount of dust is pushed out.

In the above situation, if floating dust is trapped on the surface of the screen 9 or settled dust is accumulated on the screen bottom plate 6, for example, the gripping rod 11 and the screen mounting plate 10 are respectively grasped by one hand to remove dust. Remove the device itself from the small waterway along with dust.

After that, by turning over the dust removing device and scraping the dust trapped on the screen 9 surface or the dust accumulated on the screen bottom plate 6 to the road or a collection place of the dust, the dust removing device becomes beautiful. Therefore, it will be installed in the small canal as described above.

The above operation is repeated to capture and collect floating dust, sediment dust, etc. flowing into the small water channel, and then the dust removing device is removed and the dust is beautifully removed by scraping or the like.

[Embodiment] An embodiment of the present invention will be specifically described below with reference to the drawings.

1 is a small waterway, 2 is its roadbed, 3 is its road wall, and 3a and 4a are shoulders of the roadwalls 3 and 4, respectively.

A dust remover is installed in the small water channel 1 configured as described above, and the dust remover is configured as follows. That is, the screen bottom plate 6 which is in contact with the roadbed 2 and has substantially the same shape as the roadbed 2, and one end 8a of which is fixed to the downstream end side of the screen bottom plate 6
A grooved screen that has a concave groove 7 that rises at a gentle inclination angle of less than 65 degrees (here, the gentle inclination angle is assumed when the screen bottom plate 6 is in a substantially horizontal state) and has a concave groove 7 that faces the flowing water direction. The bar 8 is appropriately spaced A in the width direction of the small waterway 1.
And the screen 9 installed on the small water channel 1 at a gentle inclination angle of less than 65 degrees, and the screen mounting supported on the both channel walls 3 and 4 to which the upper end 8b of the screen 9 is fixed. It is composed of a plate 10 and a gripping rod 11 standing upright from the screen 9 at a substantially central portion thereof. Incidentally, a large number of through holes 12 may be provided in the screen bottom plate 6. Also, the screen mounting plate 10 has shoulders 3a and 4a provided on both road walls 3 and 4, respectively.
Ideally,

Further, the grooved screen bar 8 has a narrow width formed by pressing equilateral angle steel or a plate material into a V shape, or sandwiches a plate material (not shown) having long and short rising lengths and long in the longitudinal direction. Ideally, the structure should be a substantially U-shaped configuration.

[Effect of the invention] As described in detail above, the present invention is composed of a screen bottom plate that is brought into contact with the floor of a small waterway, and a large number of grooved screen bars that rise up at a gentle inclination angle of less than 65 degrees from this screen bottom plate. A dust remover consisting of a configured screen, a screen attachment plate mounted on both walls of the small water channel provided at the upper end of the screen, and a gripping rod provided on the screen can be detachably attached to the small water channel. This dust removal device has the effect of being able to be easily removed together with this dust if it is installed in a small waterway or if dust is collected and accumulated. Also, there is an effect that dust can be removed from the small waterway with one touch.

In particular, a screen bottom plate is provided on the subgrade, a gently sloping screen is provided on the small waterway, and screen mounting plates for supporting this screen are provided on both shoulders of both road walls of the small waterway, thus achieving miniaturization. However, it is very useful as a simple dust remover, the cost can be reduced, and it can be easily installed in a small waterway.

In addition, the water receiving area of the grooved screen bar is made as small as possible, and the installation angle of the screen is installed at a sufficient gentle inclination of less than 65 degrees to provide a sufficient cross-sectional area for water flow, thus reducing pressure loss. And the effect that water flow pushes dust to the upper part of the screen surface to wash the screen surface at all times, which helps to eliminate the overflow phenomenon.
Therefore, there is an effect that safety in case of flood is secured.

Further, by easily removing the screen with the gripping rod, it is possible to expect an effect of easily removing dust without dropping dust, and other reliable dust removal and ensuring safety as a whole.

[Brief description of drawings]

The drawings show one embodiment of the present invention. Fig. 1 is an overall perspective view, Fig. 2 is an enlarged schematic view of a grooved screen bar, and Fig. 3 is a plan view installed in a small waterway. 4 is a front view installed in the small waterway, and FIG. 5 is a side sectional view installed in the small waterway. 1: Small channel, 2: Roadbed 3, 4: Road wall, 3a, 4a: Shoulder 6: Screen bottom plate 7: Recessed groove 8: Grooved screen bar 9: Screen 10: Screen mounting plate 11: Grip rod, 12 : Through hole A: Interval, B: Water receiving area

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Masanori Sakakibara Masanori Sakakibara 1-65 Nagazai, Nagakute-cho, Aichi-gun, Aichi Prefecture (72) Saburo Kimura Shiro Kimura, Niitami-cho, Kaifu-gun, Aichi Pref. (72) Inventor Yasuo Ozaki 91-3, Oyama Tanaka, Yokoyama-cho, Anjo City, Aichi Prefecture (72) Inventor, Kazuo Okada 1052-3, Mitsuka-cho, Ogaki City, Gifu Prefecture (56) Reference JP-A-63-219716 (JP, A) Actual exploitation Sho 57-96218 (JP, U) Japanese Patent Sho 54-42742 (JP, B2)

Claims (4)

[Scope of utility model registration request] 1. A screen bottom plate, such as a gutter, which comes into contact with the floor surface of a small waterway, and a concave groove which rises at a gentle inclination angle of less than 65 degrees from the downstream end side of the screen bottom plate and faces the running water direction. A screen having grooved screen bars provided at appropriate intervals in the width direction of the small water channel, a screen mounting plate mounted on both channel walls of the small water channel where the upper end of the screen is fixed, and a screen of the screen. A dust remover that is easily installed or removed in a small waterway such as a gutter formed by a gripping rod that rises up from the center of the device. 2. The screen bottom plate is a normal plate or a plate in which a large number of through holes are formed, and is easily installed or removed in a small waterway such as a gutter according to claim 1 of the utility model registration. Dust remover. 3. A utility model registration claim in which the screen mounting plates are mounted on both shoulders of both road walls, easily in a small waterway such as a gutter according to claim 1 or 2. Dust removal equipment to be installed or removed. 4. A utility model registration claim in which the screen is composed of a narrow equilateral angle steel, or a screen bar with a narrow groove formed by pressing a plate material into a V-shape. A dust remover that is easily installed or removed in a small waterway such as the gutter described in paragraph 3 or 3.