JP3717915B2 - Dust remover for waterways - Google Patents

Description

  The present invention relates to a water channel dust remover that is disposed across a water channel so as to remove dust that has flowed down due to the water flowing in the water channel.

2. Description of the Related Art Conventionally, a dust removing device that is disposed across a water channel in order to remove dust, such as wood chips, paper, plastic, cut grass, empty containers, and the like that have flowed down through a water channel such as a river or an irrigation channel has been known (Patent Literature). 1).
This dust remover can be moved up and down between a pair of width direction guide rails arranged so as to extend vertically opposite to each other on both side walls of the water channel and between the lower position and the upper position guided by the pair of guide rails. And a lifting mechanism that lifts and lowers the screen through a suspension member, and the guide rail is in a state where the screen is positioned at the upper position. Thus, it is supported so that the posture can be changed between a vertical posture along the extending direction of the guide rail and a horizontal posture tilted from the vertical posture.
According to this dust removing device, the screen in the vertical position positioned at the lower position between the both side walls of the water channel is guided to the guide rail by being lifted up to the upper position by the lifting mechanism in a state where a predetermined amount of dust is captured on the screen. Then, it rises and when it reaches the upper position, the posture is changed to the horizontal posture.
Then, an operation of removing the trapped dust from the screen set in the horizontal posture is performed, and the screen after removing the dust descends while being guided by the guide rail by the reverse operation of the lifting mechanism, and on both side walls of the water channel It is set to the lower position between.
However, since the dust removing device is for removing dust trapped on the screen by changing the posture from the vertical posture to the horizontal posture, the device becomes large and the equipment cost is high, and the dust is caught by the screen. There was a risk of dust falling off during the posture change.

Japanese Patent Laid-Open No. 11-293652

  Therefore, the present invention provides a dust remover for a water channel that has a simple structure and is disposed across the water channel in order to remove dust that has flowed down due to the water flowing in the water channel.

The dust remover for a water channel of the present invention is fixed between the side walls of the water channel so as to oppose each other, and is arranged to be inclined at an obtuse angle with respect to the upstream riverbed, and is guided by the screen guide to be captured at the lower part. Between the upper screen and the upper removal position, and at the lower end of the screen main body composed of an overflow screen consisting of a wide screen screen bar at a substantially water level position and a narrow screen bar between the overflow screen and the riverbed a screen formed by providing a抄網attached to an obtuse angle, a bearing provided above the inside of the upright fixed wound elevator to the upper edge of the side walls of the canal, so as to bridge the winding elevator between the said bearing A shaft having a winding drum attached to both ends is pivotally supported, and the screen is rotated by a winding wire wound around the winding drum by rotating the shaft. Along said screen guides and a lifting mechanism for lifting, in which further installed dust stacking plate to bridge shape on the upstream side of the screen with respect waterway.

  According to the water dust remover of the present invention, the equipment cost can be kept low with a simple structure, and the removal of the dust trapped on the screen is easy and safe without being affected by the water pressure of the running water. There are advantages that can be made.

  The water channel dust remover of the present invention is arranged so as to be opposed to each other between both side walls of the water channel and inclined at an obtuse angle with respect to the upstream riverbed, and is guided by the screen guide to a lower capturing position. And a screen main body composed of a large number of parallel screen bars, a screen having an obtuse net provided at the lower end of the screen main body, and the screen is moved up and down along the screen guide. And an elevating mechanism, and a dust collecting plate is installed in a bridging manner on the upstream side of the screen with respect to the water channel.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
As shown in FIG. 1A, a water channel dust remover according to the present invention includes a screen guide 1 that is inclined so as to face each other, and a guide between the screen guide 1 and a lower position and an upper position. The basic structure includes a screen 2 that moves up and down and a lifting mechanism 3 that lifts and lowers the screen 2 along the screen guide 1.
The screen guide 1 is made of a long steel material having a U-shaped cross section, has a lower end cut so as to be inclined with respect to the riverbed, that is, an obtuse angle, and has a posture in which the U-shaped openings face each other. It is fixed along the concrete side wall of the canal.
That is, the inclination angle of the screen guide 1 may be an appropriate gradient so that the angle between the screen guide 1 and the upstream riverbed becomes an obtuse angle, and the dust does not fall down while the dust is captured by the screen 2. Any angle that allows the screen 2 to be pulled up along the screen guide 1 may be used.

The screen 2 includes a substantially rectangular screen frame 4 formed of a long steel material, strip-shaped screen bars 5 arranged in the screen frame 4 at predetermined intervals in a vertical direction, and a lower end of the screen frame 4 It is composed of a round steel mesh 6 attached to the part at an obtuse angle.
The screen frame 4 includes an overflow screen 7 in which the screen bars 5 are arranged in a vertical direction at a wide interval at the upper position, and a screen body in which the screen bars 5 are arranged in a vertical direction at a narrow interval below the overflow screen 7. 8 and.
The left and right side frames of the screen frame assembly 4 guided by the screen guide 1 have a plurality of rollers (not shown) on the lower surface and a plurality of left and right rolling prevention rollers (not shown) on the side. It is also possible to reduce the resistance when the screen 2 is raised and lowered.
Further, the overflow screen 7 is provided at a lower position than the upper end of the irrigation channel when the screen 2 is disposed at the lower position, that is, at the capturing position, substantially higher than the normal water level position. It is installed at the height from the river bottom to the irrigation canal.
The net 6 is formed in a lattice shape by a round steel member, and is formed in a bowl shape by projecting the tip of a round lattice round steel along the upstream flow and bending it upward.

The elevating mechanism 3 includes an inverted L-shaped hoisting plate 9 straddling the upper edge of the concrete side wall of the irrigation channel, and an elongated rectangular tubular hoisting plate 10 that is erected and fixed on the horizontal upper surface of the hoisting plate 9. A bearing (not shown) of the shaft 12 of the take-up drum 11 is provided inside the hoisting base 10 and a side surface of the hoisting base 10 via a gear reduction mechanism (not shown) provided inside the hoisting base 10. Is provided with a hoisting handle (not shown).
A shaft 12 having a winding drum 11 attached to both ends is pivotally supported by the bearing (not shown), and the shaft 12 is rotated via a gear reduction mechanism by rotating the hoisting handle (not shown). And the winding drum 11 are rotated simultaneously.
A winding wire 13 fixed to both ends of the screen frame assembly 4 of the screen 2 is wound around the winding drum 11, and the winding wire 13 is wound when the winding drum 11 is rotated forward, The screen 2 rises while being guided by the screen guide 1, and the screen 2 is lowered by the reverse rotation of the winding drum 11.
The hoist 10 is provided with a plate-like support member 14 that supports and fixes the screen guide 1 in an inclined state.
Then, as shown in FIG. 1B, a flat dust collecting plate 15 in which a large number of scaffolding aluminum rigid members are arranged in a bridging manner on the upstream side of the screen 2 with respect to the water channel is installed.

Next, the operation of the water channel dust remover of the present invention will be described below with reference to the drawings.
As shown in FIG. 2, first, the hoisting base 10 is fixed to the concrete side wall immediately upstream of the place where the sluice of the irrigation canal is secured with bolts or the like, and the hoisting bases 10 are respectively placed at opposite positions of the irrigation canal. A shaft 12 to which the winding drum 11 is attached is further fixed between the winding bases 10 and 10.
In advance, the screen guide 1 is fixed to the support member 14 of the hoisting base 10 so that the screen guide 1 has an obtuse angle that is inclined downward toward the upstream side along the concrete side wall, and the screen 2 is attached to the screen guide 1 using a crane or the like. The tip of the winding wire 13 of the winding drum 11 is fixed to the left and right side frames of the screen frame assembly 4.
A dust collecting plate 15 is installed in a bridging manner upstream of the screen 2 with respect to the irrigation channel, and the dust collecting plate 15 stretched over the position of the upper end surface of the concrete side wall lifts the screen 2 when the screen 2 is pulled up. It is installed so that the end of the dust accumulation plate 15 is located at the tip of the papermaking net 6.
In this way, if the screen 2 is in the lowest position along the screen guide 1, the dust flowing down the irrigation channel can be captured.

Dust floating in the water channel or flowing down in the water is captured and dammed by the screen body 8, and an empty can or the like flowing down the riverbed is dammed by the screen body 8 and rides on the net 6.
As shown in FIG. 3, when removing the dust, the winding handle (not shown) is rotated forward to rotate the two winding drums 11 fixed to the shaft 12 and simultaneously wind up both sides. The wire 13 is wound up and the screen 2 is raised along the screen guides 1 on both sides.
The dust is lifted from the water surface while riding on the screen body 8, and when the screen 2 is raised to the uppermost position, the net 6 of the screen 2 is lifted to the position of the upper end surface of the concrete side wall.
At this time, since the dust collecting plate 15 hung over the position of the upper end surface of the concrete side wall is installed at the front end position of the paper making net 6, the dust on the screen body 8 is used using a working tool such as a rake. It can be scraped off on the dust collecting plate 15.
In addition, since the empty can that has flowed down the riverbed is lifted on the papermaking net 6, it can be moved to roll on the dust accumulation plate 15.
During the scraping operation, even if the dust drops, it can be received by the net 6.

When the removal operation of the trapped dust is completed in this manner, the stopper of the hoisting handle is released and the hoisting handle is reversely rotated, and at the same time, the two take-up drums 11 fixed to the shaft 12 are reversely rotated. Then, the winding wires 13 on both sides are loosened, and the screen 2 is lowered along the screen guides 1 on both sides.
When the screen 2 descends to the lowest position where the screen 6 of the screen 2 contacts the riverbed, the stopper of the hoisting handle is fixed, and the screen 2 is fixed at the catching position of the irrigation channel.
In addition, even if the flowing water in the irrigation channel is blocked by the dust captured at the capturing position of the screen 2 and becomes a dam, the flowing water overflows from the overflow screen 7 portion on the upper part of the screen 2 and can flow downstream. it can.

It is a whole perspective view of the dust remover for waterways of the present invention. It is a perspective view at the time of installing the dust remover for waterways of this invention in the capture position. It is a perspective view at the time of installing the dust remover for waterways of this invention in the removal position.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Screen guide 2 Screen 3 Elevating mechanism 4 Screen frame 5 Screen bar 6 Paper net 7 Overflow screen 8 Screen main body 9 Hoisting base plate 10 Hoisting base 11 Winding drum 12 Shaft 13 Hoisting wire 14 Support member 15 Dust collecting plate

Claims (1)

A screen guide fixed between the side walls of the irrigation channel so as to face each other and inclined at an obtuse angle with respect to the upstream riverbed, and guided between the screen guide and between the lower capture position and the upper removal position lifting, and a抄網mounted at an obtuse angle to the lower end of the screen body and the screen body of the screen bar narrow spacing between riverbed from the overflow screen and the overflow screen consisting of screen bars widely spaced substantially level position A shaft provided with a bearing on the upper part of a hoisting stand that is erected and fixed to the upper end edges of both side walls of the water channel, and a shaft having take-up drums attached to both ends so as to span the hoisting stand on the bearing Is supported by a winding wire wound around a winding drum by rotating the shaft and the screen is guided to the screen guide. And a lifting mechanism for lifting I, further water channel dust remover, characterized in that installed dust stacking plate to bridge shape on the upstream side of the screen with respect waterway.

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