JPH05263409A - Dust removing device for water channel - Google Patents

Abstract

PURPOSE:To collect dust flowing in an irrigation channel or a drainage channel in the water channel without newly requiring an installation space. CONSTITUTION:A frame 15 is supported in flowing water in a water channel 1 by a height adjusting device 14, and a chute 17, side plates 32 of which are arranged so that they diagonally cross the water channel 1 over the full range of the width of the water channel 1 to narrow the downstream opening of the chute, is fixed to the upper part upstream of the frame 15. A cage 16 composed of perforated plates 37 and having an opening part 16a on the side is placed on the upper part downstream of the frame 15 so that the opening part 16a conforms with the downstream opening of the chute 17. The chute 17 and the cage 16 are installed in the upper layer of flowing water by the height adjusting device 14, and collect floating dusts without interrupting the flowing-down of the flowing water. When the cage 16 is lifted, a screen 18 is installed on the downstream opening of the chute 17 to prevent dust from flowing downstream.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water channel dust removing device in which dust flowing in an irrigation channel or a drain channel is accommodated in the same channel.

[0002]

2. Description of the Related Art Conventionally, by removing dusts flowing in an irrigation canal or a drainage canal, the function of running water is maintained and the environment is made hygienic. The device for this is shown in FIG.
As shown in, a screen 2 is provided across the waterway 1,
A rake 3 is installed movably upward along the screen 2, a drive device 4 for the rake 3 and a storage bin (not shown) are installed on the ground, and along the upper part of the screen 2 to put dust in the storage bin. Some have a belt conveyor 5. When the drive device 4 is activated, the rake 3 moves above the water surface on the screen 2, scrapes dust on the front surface of the upstream side of the screen 2 to the ground, and the rake 3 that has become empty reaches the lower end of the screen 2 in water. It is moved and scraps dust continuously. The scraped dust is stored in the storage bin via the belt conveyor 5.

Since the screen 2 is provided over the entire cross section of the water channel, the above-mentioned device must be operated at all times so that the screen 2 is not clogged with dust. For this reason, there arise problems of introduction of electric power machines and unmanned operation. In addition, since the dust is exposed to the atmosphere and stored, there is a problem that it produces a foul odor.

An apparatus considering the above problem has a side channel 6 provided side by side with a water channel 1 as shown in FIGS. 5 and 6.
A shielding plate 8 for guiding the flowing water is attached to the inflow port 7 at an angle that obliquely crosses the water channel 1 and hangs down from the upper layer of the flowing water. In the side channel 6, a cage 9 having a large number of holes and having the same width as this is installed in water. A gate 10 is provided downstream of the position of the inlet 7, and an outlet 11 of the side flow path 6 is formed downstream of the gate 10.

[0005] This device excludes a deep portion where dust is extremely small and does not remove dust only near the water surface. The gate 10 is used to keep the upstream water level constant, and the shield plate 8 is removed from the water surface. It is installed vertically up to a depth of 30 cm.
Most of the dust flowing down the water channel 1 is floating or is located in the upper part of the running water, so that it is guided to the side flow path port 7 by the shield plate 8. In the side flow path 6, dust flows into the cage 9 together with a part of the running water, and the filtered running water flows into the gate 10.
The dust is collected in the cage 9 after merging to the downstream side of the. After that, the cage 9 is pulled up to remove dust.

[0006]

However, since the shielding plate 8 is fixed to the water channel 1, it is difficult to guide dust when the upstream water level fluctuates. Therefore, the gate 10 is kept to keep the upstream water level constant. Is installed, there is a problem that the equipment cost increases. In addition, a road for discharging the collected dust must be secured, but a site for providing the side flow path 6 is also required. Also, functionally, when the water flow increases and the water level difference between the upstream and downstream of the gate 10 decreases,
Since the amount of water passing through the side channel 6 decreases, there is a problem that dust cannot be guided to the cage 9.

An object of the present invention is to provide a dust removing device for a water channel which is not affected by the upstream water level and does not require a new installation space.

[0008]

In order to achieve the above object, the present invention supports a gantry in a running water of a water channel by a height adjusting device, and an upper part of the gantry on an upstream side over the entire width of the water channel. Moreover, a side plate is arranged vertically so as to diagonally cross the water channel and a chute having a narrowed downstream side mouth is fixed, and a cage having a perforated plate and an opening on the side surface is provided in the upper part on the downstream side of the gantry. The opening is aligned with the downstream opening of the chute and placed.

A screen is detachably provided at the downstream side opening of the chute.

[0010]

With the above structure, the height of the gantry located under water can be adjusted and the chute and cage can be installed in the upper layer of running water. In addition, since the running water passes through the perforated plate of the cage and also flows from below the gantry, the running water is not blocked.

Most of the dust is so-called floating dust,
It is put together in a cage by a chute. Even if dust is stored in the cage, the running water flows downstream, so the cage can be kept in water. Also, pull out the cage when carrying out the dust.

Further, the screen arranged at the downstream side mouth of the chute is installed in running water when pulling up the cage to prevent dust from flowing out downstream.

[0013]

Embodiments of the present invention will be described below with reference to the accompanying drawings. First, the outline of the dust removing device will be described. As shown in FIGS. 1 to 3, a pair of main girders 12 are crossed at an upstream side and a downstream side of the water channel 1 with an appropriate interval and are fixed to the upper ends of the side walls. A height adjusting device 14 in which two racks 13 are vertically arranged is attached to a pair of main girders 12, and four racks 13 are provided.
The lower end of is fixed to the pedestal 15. Then, the cage 16 is placed on the upper part of the gantry 15 on the downstream side. A chute 17 is fixed to the upper part of the pedestal 15 on the upstream side, and the chute 16 and the chute
A screen 18 is provided between the screens 17 and 17.

Bearings 19 are fixed to both ends of the main girder 12, and a connecting shaft 20 of a height adjusting device 14 is rotatably supported. The rack 13 penetrating the main girder 12 is meshed with a pinion 21 fixed to the connecting shaft 20 above the main girder 12. On one side of the two connecting shafts 20 arranged above the main girder 12, an operating shaft 22 is arranged orthogonal to the connecting shaft 20 with both ends pivotally supported by bearings 19, and attached to the connecting shaft 20. The wheel 23 and a worm gear 24 attached to the operation shaft 22 mesh with and are linked. A handle 25 is fixed to the end of the operating shaft 22. Further, the rack 13 is covered with a casing (not shown) provided on the main girder 12, to protect the tooth surface and to guide sliding.

The pedestal 15 is a pair of vertical girders arranged in the upstream and downstream directions.
Two splicing girders for mounting the cage 16 on the lower part of the downstream side of 26
27 are fixed at intervals, and 3 is attached to the upper part on the upstream side of the vertical girder 26.
The horizontal girders 28 of the book are fixed at intervals, and the lateral girders 28 fixed to the upstream end have a length approximately equal to the width of the water channel. Further, the space between the vertical girders 26 of the gantry 15 is made wider than the width of the cage 16, and a stopper 29 for supporting the rear side surface of the cage 16 is fixed to the downstream end of the vertical girder 26. A pillar 31 for supporting the switch 30 is fixed to one side of the middle cross girder 28, and the rack 13 described above is fixed to an intermediate portion and a downstream end of the vertical girder 26, respectively.

The chute 17 is composed of a side plate 32 and a bottom plate 33, and is fixed to the upstream end of the gantry 15 and the transverse beam 28 in the middle.
A waterproof rubber 34 is fixed to the upstream end of the side plate 32 so as to be in close contact with the side wall of the water channel 1. Further, the side plate 32 extends toward the downstream side toward the center of the water channel, and narrows the width of the downstream side opening 35 of the chute 17.

From the downstream side opening 35 of the chute 17, a guide water channel 36
Are connected in parallel, the width of the guide channel 36 is smaller than the width of the cage 16, and the bottom of the guide channel 36 has vertical girders 26 and horizontal girders.
The thickness is 28, which is higher than the bottom of the cage 16.

The cage 16 is installed with an opening 16a on the side surface arranged on the upstream side. The side surfaces and the bottom surface on three sides are composed of a perforated plate 37 having a large number of holes, and the perforated plate 37 is integrally formed of a large mesh and durable outer plate and a small mesh inner plate. Further, handles 39 for hoisting by the crane 38 are provided at the four corners of the upper end of the cage 16, and by using a truck equipped with the crane 38, it is only necessary to secure the carry-out path. Since the installation space of the crane 38 is small, it may be arranged at the nearest position.

The screen 18 has a large number of screen bars 41 fixed to a rectangular frame 40, and has a downstream side opening 35 of the chute 17.
It is located in. A screen shaft 42 that traverses the downstream port 35 is rotatably supported by a bearing 19 fixed to the upper end of the side wall of the guiding water channel 36, and the screen 18 has its upper end at the screen shaft.
It sticks to 42 and is hanging.

The screen shaft 42 is connected to the switch 30 via a pin 43.
Is connected to one end of the opening / closing shaft 44 of the
It is supported by a bearing 19 fixed to a column 31 of
The worm wheel 45 is fixed to the 44. Also, the pillar 31
A bearing 19 is fixed to the vertical shaft 46, and a vertical shaft 46 is axially supported in the vertical direction. The switch 30 can be operated from the side wall of the. When the handle is operated, the screen 18 is rotated from the hanging position toward the upper stream side.

Next, the operation will be described. There are two types of dust, one that flows down while sweeping the bottom of the waterway 1 and the other that flows while floating, but there are many things that float overwhelmingly, and the platform 15 is used as a height adjustment device. It is submerged in water 14 and the cage 16 is placed on the spar 27, and the height adjusting device 14 adjusts so that the cage 16 is arranged in the upper layer of the running water.

In this case, the width of the cage 16 is larger than the width of the guiding water passage 36, and there is no problem even if the mounting position is deviated. Also, if the flow is strong, the cage 16 moves to the downstream side after it is placed, but the rear side surface is supported by the stopper 29,
Moreover, since the vertical girders 26 hold the side surface of the cage 16, it is possible to prevent the vertical girders 26 from falling from the gantry 15.

Further, the water channel 1 is divided into a flow channel flowing through the cage 16 and a flow channel flowing below the cage 16, and the height of the pedestal 15 can be appropriately adjusted according to the flow rate.
Dust and dust can be reliably guided into the cage 16 without any trouble in the flow of dust and running water. Adjusting the height of the gantry 15 is easy when the cage 16 is removed from the gantry 15, such as when the cage 16 is replaced, without burdening the weight. Further, since the height position of the cage 16 is adjusted to the upstream water level, there is no need to use a gate as in the conventional technique, a side flow passage is not necessary, and it is not necessary to expand the installation space. In addition, since the flow channel that flows downstream is secured, dust can be removed from the water channel 1 without interruption.
You don't have to scratch it up.

Further, by providing the chute 17, the water force of the width of the entire water channel is gathered in the center, so that the dust passes through the guiding water channel 36 vigorously. The screen 18 provided on the downstream side opening 35 of the chute 17 is operated by operating the handle 48 and lifted upward in the downstream direction. The mechanical structure of the switchgear 30, that is, the worm gear 47, self-locks the screen 18
Can always maintain a horizontal posture in the air. Therefore, it does not hinder the flow of dust.

In the cage 16 for storing dust, the outer plate can oppose the pressure and weight of the dust, and the inner plate can catch the dust. In addition, small dust below the mesh passes through in the initial stage, but when dust collects to a certain extent, a phenomenon of filtering the dust with the dust appears, so small dust below the mesh is also captured. Since the rack 13 is located on the downstream side of the cage 16, dust does not get entangled in the rack 13.

Next, the case of replacing the cage 16 will be described. First, the handle 48 is operated to suspend the screen 18. The self-lock described above can maintain the vertical posture against water pressure. Therefore, the dust is prevented from flowing downstream and is stored in the upstream portion of the chute 17.
In the meantime, the cage 16 is hung by hooking a wire on the hook of the crane 38 and placed on the truck as it is. Therefore, the unloading process can be performed without touching the dust.

After that, the empty cage 16 is hung and placed on the pedestal 15, and the handle 48 is operated to move the screen 18 downward and upward, thereby accumulating in the upstream portion of the chute 17. The dust will smoothly flow into the cage 16.
In addition, by using a dump truck equipped with a non-slip cage 16 for the transport vehicle, the upstream opening of the cage 16 is aligned with the rear side of the dump truck, and the loading platform is automatically tilted by tilting the loading platform at the refuse disposal site. Can be released.

On the other hand, the rate of decay of the accumulated dust depends on the amount of oxygen in the water. If you show it numerically, the amount of oxygen in the air is about 2
It is 0%, in other words 200,000 ppm, whereas the oxygen content in water at 16 ° C. is only 15 ppm. Therefore, the rotting rate is slow in water, and since it is in water, the rotten smell does not drift in the air. In addition, since the rotting is not progressing even when carried out by a truck, the rotten smell becomes weak.

[0029]

EFFECTS OF THE INVENTION Since the present invention is configured as described above, by adjusting the height of the cage, it can be installed in the upper layer of running water regardless of the upstream water level. It is possible to store dust and dirt in a cage in water. Therefore, a new installation space for the device is not required, the structure is simple, the cost is low, the power of the device is made non-powered, and an environment that does not generate a bad odor can be obtained. Further, when the cage is pulled up, the screen is operated to prevent the dust from flowing out downstream, so that the dust in the water channel can be reliably removed.

[Brief description of drawings]

FIG. 1 is a side sectional view of a dust remover according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of a water channel showing the front of the dust remover of the embodiment.

FIG. 3 is a plan view of the dust remover of the embodiment.

FIG. 4 is a side sectional view of a conventional dust remover.

FIG. 5 is a plan view of another conventional dust removing device.

FIG. 6 is a cross-sectional view of the dust remover shown in FIG. 5 taken along the line AA.

[Explanation of symbols]

 1 Channel 14 Height adjustment device 15 Stand 16 Cage 16a Opening 17 Chute 18 Screen 32 Side plate 35 Downstream port 37 Perforated plate

Claims (2)

[Claims] 1. A pedestal is supported by a height adjusting device in running water of a water channel, and a side plate is arranged above the gantry over the entire width of the water channel and vertically so as to diagonally cross the water channel. Then, a chute having a narrowed downstream side mouth is fixed, and a cage having a perforated plate and having an opening on a side surface is provided on the upper part of the downstream side of the mount, and the opening is aligned with the downstream side mouth of the chute. A dust remover for a water channel characterized by being placed. 2. A waterway dust removing apparatus according to claim 1, wherein a screen is detachably provided at a downstream side opening of the chute.