JP2002069976A - Refuse removing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a refuse removing device capable of catching refuse or the like having such a fineness and a shape that it has been hard to catch by conventional refuse removing machines. SOLUTION: The refuse removing device is provided with a vertical screen 11 in which a plurality of vertical bars 11a,... vertically running through a flowing pass are parallelly fixed, and a horizontal screen 12 in which a plurality of horizontal bars 12a,... circulating along the vertical screen 12 are arranged parallelly. By superposing the vertical bars 11a with the horizontal bars 12a,... a circulating and rising lattice plane is formed in the flowing pass.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dust remover which is installed in a flow path of, for example, a water treatment facility and scrapes and removes dust and the like in flowing water flowing through the flow path.

[0002]

2. Description of the Related Art As an example of a dust remover 1 installed in a flow path of a water treatment facility or the like and for removing dust and residue (hereinafter collectively referred to as dust) in flowing water flowing through the flow path, for example, FIG. 9
The types shown in (a) and (b) are widely used. In this conventional dust remover 1, after the dust J is captured by the dust removal screen 2 installed in the flow path P, the dust J is scraped over water by a comb-shaped rake 3 and removed. The dust removing screen 2 is configured by arranging a plurality of steel plates 2a,... In parallel with each other with a gap (longitudinal slits s,...) Therebetween. Is set up perpendicularly to the flowing down direction, so that dust J contained in the flowing water W flowing in can be captured.

[0003]

The above-described conventional dust remover 1 has the following problems.
That is, because the running water W must pass through,
As described above, a large number of vertically long slits s,.
..If dust J finer than the gap size of the gap flows in, or slender dust J flows vertically in accordance with the shape of the slits s,. There is a problem that it may not be captured because it flows out downstream.

[0004] The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a dust remover capable of capturing dust and the like having fineness and shape, which was difficult to catch with a conventional dust remover. And

[0005]

Means for Solving the Problems The dust remover of the present invention employs the following means to solve the above problems. That is, the dust remover according to claim 1 is a dust remover that scrapes and removes dust and the like in the flow path, and a vertical screen in which a plurality of vertical bars vertically cutting the flow path are fixed in parallel, A horizontal screen traversing the flow path and arranging a plurality of horizontal bars circulating along the vertical screen in parallel with each other. A circulation rising type lattice surface is formed in the road. According to the dust remover of the first aspect, a lattice-like mesh is formed in the flow path by overlapping a plurality of vertical bars and a plurality of horizontal bars. This mesh
For example, since the size of the eyes is smaller than that of a conventional dust remover having a slit-shaped screen, dust and the like having a size that was difficult to catch in the past can be efficiently captured.
In addition, since trapping is performed by a grid-like mesh, a conventional elongated slit can efficiently capture even elongated dust or the like that would pass through in parallel to the slit.

A dust remover according to a second aspect of the present invention is the dust remover according to the first aspect, wherein at least one of the horizontal bars is inserted into a gap between the vertical bars. It is characterized in that a comb tooth portion that rises along is provided.
According to the dust remover according to the second aspect, by raising each horizontal bar with respect to each vertical bar, dust and the like entering the gaps between the vertical bars are combed by the comb teeth of each horizontal bar. It is being scraped.

A dust remover according to a third aspect of the present invention is the dust remover according to the first or second aspect, wherein at least one of the horizontal bars protrudes toward an upstream side in a flowing direction of flowing water. A rake portion is provided. According to the dust remover according to the third aspect, it is possible to catch and scrape up large dust and the like that do not enter the grid-like mesh.

A dust remover according to a fourth aspect of the present invention is the dust remover according to any one of the first to third aspects, wherein each of the horizontal bars is folded at the upper end of each of the vertical bars. It is characterized by having a detachment portion that detaches more. According to the dust remover according to the fourth aspect, each horizontal bar after the combination with each vertical bar is released at the detachment portion has a grid-like mesh because its gap is simply a slit shape. In comparison with the case where the dust is left as it is, it becomes easier to drop the scraped dust and the like from each horizontal bar.

According to a fifth aspect of the present invention, there is provided the dust remover according to any one of the first to fourth aspects, wherein the horizontal screen is disposed on a front side of the vertical screen. . According to the dust remover of the fifth aspect, since the horizontal screen is disposed on the front side of the vertical screen, dust and the like attached to the front side of the vertical screen can be efficiently scraped off.

A dust remover according to a sixth aspect of the present invention is the dust remover according to any one of the first to fourth aspects, wherein the horizontal screen is disposed on the rear side of the vertical screen. . According to the dust remover of the sixth aspect, since the horizontal screen is disposed on the back side of the vertical screen, the fluid that has been decelerated on the vertical screen comes into contact with the horizontal screen. In addition, relatively fine dust and the like that are not captured on the vertical screen hit the horizontal screen.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments of the dust remover of the present invention will be described below with reference to the drawings. However, it is a matter of course that the present invention is not limited to these. First, a first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a side view of the dust remover of the present embodiment, FIG. 2 is a perspective view of a main part showing a combination of a vertical screen and a horizontal screen of the dust remover, and FIG. FIG. 4 is a front view as viewed from an arrow B in FIG.
It is sectional drawing which looked at the same combination from CC line of FIG.

As shown in FIG. 1, a dust remover 10 according to the present embodiment is a device for scraping and removing dust and residue (hereinafter collectively referred to as dust) in a water passage P (flow passage). A vertical screen 11, a horizontal screen 12, a circulation drive mechanism 13, a control device (not shown), a discharge trough 14,
It has a schematic configuration including a washing mechanism 15.

As shown in FIG. 2, the vertical screen 11
A plurality of vertical bars 11a,... Traversing the water channel P are fixed in parallel with slits s1,. These vertical bars 11a,... Are vertically long plate-like parts (steel plates) having a substantially constant thickness.
When viewed from the side as shown in FIG. 5, a straight portion 11a1 constituting a part of a lattice surface described later, and a bent portion 11a bent while drawing a gentle curve continuously at the upper end of the straight portion 11a1
And 2. And these vertical bars 11a, ...
Are arranged in the vertical screen 11 with the slits s1,...
As a single unit.

Further, the vertical screen 11 has a water passage P
When viewed from the front in the flow direction from the upstream side to the downstream side (the direction from the left side to the right side in FIG. 1), it extends in the vertical direction, and when viewed from the side shown in FIG.
The water passage P is installed by an installation part (not shown) so as to be inclined toward the flow direction. By tilting the vertical screen 11 in this way, the flow of the dust that has flowed to the vertical screen 11 can be guided upward, so that the dust does not easily accumulate at the bottom of the water channel P.

The horizontal screen 12 traverses a water channel P and, as shown in FIG. 2, a plurality of horizontal bars 1 circulating and rising along the front side (upstream side) of the vertical screen 11.
Are arranged side by side with slits s2,. These horizontal bars 12a,
.. Are standard horizontal bars 12a1,.
, And raked horizontal bars 12a2,... Formed with rake portions r,.
The standard horizontal bars 12a1,... Are horizontally long components having substantially the same length as the entire width of the vertical screen 11, and the front side of each of the vertical bars 11a,. As a result, the dust caught on the front side can be scraped up toward the water and removed.

The rake-attached horizontal bars 12a2,... Are horizontal components having substantially the same length as the entire width of the vertical screen 11, like the standard horizontal bars 12a1,. By rising along the front side of 11a,... (The surface facing the upstream side of the flowing water), dust captured on the front side can be scraped up toward the water and removed. As shown in FIG. 4, the horizontal bars 12a2 with rakes are inserted into the slits s1 (in the gaps) of the vertical bars 11a,.
The comb teeth k rising along the extending direction of the comb teeth
Are formed. Furthermore, the horizontal bar 12a with a rake
The rake portion r protrudes toward the upstream side of the flowing water (ie, the direction opposite to the flow direction) in the flowing water.

Accordingly, each raked horizontal bar 12a2,
.. Have a comb-like surface facing each of the vertical bars 11a,..., And the pitch interval between the respective comb-tooth portions k,. Are the same size as the pitch interval of. Therefore, the raked horizontal bars 12a2,...
After being engaged with the vertical screen 11, the vertical screen 11 is captured by being raised from the lower part to the upper part of the vertical screen 11 along the extending direction of each slit s1,. Garbage can be scraped and collected on the water. Moreover, the horizontal bar 12a with each rake
Since the total length of 2,... Is approximately the same as the width of the vertical screen 11, dust can be removed over substantially the entire surface of the vertical screen 11.

The horizontal bar 12a with a rake described above.
, And the standard horizontal bars 12a1,... Are integrally formed as an annular horizontal screen 12 with the slits s2,. That is, as shown in FIG.
, And the standard horizontal bars 12a1,... Are connected to a circulating drive chain 13a, 13a described later at each end, thereby forming an endless belt-shaped horizontal screen 12. Note that the standard horizontal bars 12a1,.
Are arranged consecutively, and the horizontal bar 12a with a rake
Are arranged intermittently.

As shown in FIG. 1, the lower portion of the horizontal screen 12 formed in the shape of an endless belt is submerged,
In addition, there is substantially no vertical circulating portion that rises and descends along the tilting direction of the vertical screen 11, and a horizontal circulating portion that circulates in the horizontal direction on the paper horizontally from the upper end of the vertical circulating portion on the water. The circulation drive chains 13a, 13a circulate in the direction of the arrow while synchronizing with each other, so as to orbit around the vertical screen 11.

The circulating horizontal screen 1
2, a part of each horizontal bar 12a,
, And the vertical bars 11a,..., Form a circulation rising lattice surface in the water channel P. FIG.
, Each horizontal bar 12a,.
a,.. when turning over at the upper ends of the vertical bars 11.
a,... has a detachment portion R that detaches from the member. That is, each horizontal bar 12a,... Rises while maintaining a state of being close to the straight portions 11a1,... Of each vertical bar 11a,. , Gradually pass through the vertical bars 11a,.

As shown in FIG. 1, the circulating drive mechanism 13 includes a circulating drive chain 13a and a guide portion 13b for guiding and supporting a folded portion of the circulating drive chain 13a.
, 13c and a drive motor 13d for circulating the circulating drive chain 13a. The control device controls the activation, stop, rotation speed adjustment, etc. of the drive motor 13d. The washing mechanism 1
5 is a cleaning water supply source (not shown) for supplying cleaning water;
A shower ring 15a for spraying the washing water CW from the washing water supply source from the inside to the outside against the horizontal screen 12, and the control device can stop or start the injection of the washing water CW. It has become.

The discharge trough 14 includes a first discharge trough 1.
4a and a second discharge trough 14b. That is, the first discharge trough 14a is a trough disposed inside the endless belt-shaped horizontal screen 12 and immediately below the release portion R, and falls by its own weight from the horizontal screen 12 separated from the vertical screen 11. A relatively large garbage J can be received and transferred to a garbage disposal plant (not shown). Also, the second discharge trough 14b
Is a trough disposed outside the horizontal screen 12 and directly below the shower ring 15a, receives relatively small dust J falling from the horizontal screen 12 due to the water pressure of the washing water CW, and performs dust treatment (not shown). It can be transported to the place.

The operation of the dust remover 10 according to this embodiment having the above-described configuration will be described below. First, the injection of the washing water CW from the shower ring 15a to the horizontal screen 12 is started according to an instruction from the control device, and at the same time, the circulation drive motor 13d is started. Then, the circulating drive chains 13a, 13a rotate synchronously by this rotational driving force, and at the same time, the horizontal screen 11 is circulated. The standard horizontal bar 12a1 and the horizontal bar 12a2 of the rake of the horizontal screen 12 which are thus circulated are started to overlap with the vertical screen 11 in the portion (a) of FIG.
The garbage trapped in 1a, ... is scraped up toward the water. At this time, each vertical bar 11a,.
With respect to the dust sandwiched between the slits s2,..., The comb teeth k,... Of the horizontal bar 12a2 with rake are scraped up on the water. Also, the relatively large refuse that has not entered the lattice mesh is also scraped up on the water by the rakes r,.

Each of the horizontal bars 12a,... At the time of ascending overlaps with each of the vertical bars 11a,. Since this mesh has a finer mesh size than a conventional dust remover having a vertically slit screen, for example, it is possible to efficiently capture fine dust that was conventionally difficult to catch. . In addition, since trapping is performed using a grid-like mesh, conventional slender slits can efficiently capture even slender-shaped garbage that would pass if flowing in parallel to the slit. Has become.

The horizontal screen 12 which continues to ascend and reaches the detachment section R moves in the horizontal direction (rightward on the paper of FIG. 1) while gradually detaching from the vertical screen 11. At this time, the horizontal bars 12a,... After the combination with the vertical bars 11a,.
Since the lattice-shaped fine mesh is broken and only a larger slit-shaped opening (slit s2,...) Is formed,
Compared to the case of circulating while maintaining the lattice network,
The scraped-up trash can be easily dropped by its own weight from the horizontal bars 12a,.... The relatively large refuse that has fallen in this way is captured by the first trough 14a and discharged to the refuse treatment plant.

The horizontal bar 1 that has passed over the first trough 14a
Fine dust is still attached to 2a,..., Which is washed off when passing under the shower ring 15a. That is, shower ring 1
Cleaning water CW injected from 5a is supplied to each horizontal bar 12a,.
And the water pressure causes the deposits to be
It falls on trough 14b. The relatively fine garbage thus captured is discharged to the garbage disposal plant via the second trough 14b.

According to the dust remover 10 of the present embodiment described above, a combination of the vertical bars 11a,... And the horizontal bars 12a,. Since a grid surface can be formed, it is possible to capture dust and dust having a size and shape that were difficult to capture with a conventional dust remover. Also, for each rake-equipped horizontal bar 12a2,.
The comb teeth k,... Rising along the slits s1,... Between the vertical bars 11a,.
It is possible to efficiently scrape the dust that is sandwiched between 1,.

Since the rake portions r,... Are provided for the rake-equipped horizontal bars 12a2,..., Dust larger than the mesh can be caught. It is also possible to do well.
In addition, the provision of the detachment portion R facilitates the dropping of dust here, so that the cleaning of the horizontal screen 12 is facilitated. Therefore, it is possible to reduce the problem of returning the dust once scraped up to the water channel P again. Also, the horizontal screen 12 is replaced with the vertical screen 1
1, the vertical bars 11a,.
Since the horizontal bars 12a,... (Horizontal screen 12) move along the front surface of the vertical screen 11 (the front surface of the vertical screen 11), dust attached to the front surface of the vertical screen 11 can be efficiently scraped. Becomes

Next, a second embodiment of a dust remover according to the present invention will be described below with reference to FIGS. The dust remover according to the present embodiment is different from the dust remover 10 according to the first embodiment in that the horizontal screen 12 is disposed on the front side of the vertical screen 11, whereas the horizontal screen 12 is located on the rear side of the vertical screen. The difference is that the horizontal screen is arranged in the second embodiment. FIG. 5 is a side view of the dust remover of the present embodiment, FIG. 6 is a perspective view of a main part showing a combination of a vertical screen and a horizontal screen of the dust remover, and FIG. FIG. 7 is a view of the same combination as viewed from an arrow D in FIG.
FIG. 8 is a cross-sectional view of the same combination of the dust removers as viewed from the line EE in FIG.

As shown in FIG. 5, a dust remover 20 according to the present embodiment is a device for scraping up and removing dust and residue (hereinafter collectively referred to as dust) in a water passage P (flow passage). A vertical screen 21, a horizontal screen 22, a circulation drive mechanism 23, a control device (not shown), a discharge trough 24,
It has a schematic configuration including a water washing mechanism 25.

As shown in FIG. 6, the vertical screen 21
A plurality of vertical bars 21a,... Traversing the water channel P are fixed in parallel with slits s3,. These vertical bars 21a,... Are vertically long plate-like components having a substantially constant thickness, and when viewed from the side shown in FIG. A curved portion 21a2 is formed at the upper end of the straight portion 21a1 while continuously drawing a gentle curve. The vertical bars 21a,... Are arranged between the slits s3 by a spacer (not shown).
Are integrally formed as the vertical screen 21 in a state where...

Further, this vertical screen 21
When viewed from the front in the flow direction from the upstream side to the downstream side (the direction from the left side to the right side in FIG. 5), it extends vertically, and when viewed from the side shown in FIG.
The water passage P is installed by an installation part (not shown) so as to be inclined toward the flow direction. By tilting the vertical screen 21 in this manner, the flow of dust that has flowed to the vertical screen 21 can be guided upward, so that dust is less likely to accumulate at the bottom of the water channel P.

The horizontal screen 22 traverses the water channel P and, as shown in FIG. 6, a plurality of horizontal bars 2 circulating and rising along the rear side (downstream side) of the vertical screen 21.
. Are arranged in parallel with slits s4,. These horizontal bars 22a,
.. Are standard horizontal bars 22a1,.
.. and raked lateral bar 22a having rake portion r formed
... Standard horizontal bar 22a1,
Are horizontally long parts having a length substantially the same as the entire width of the vertical screen 21, and are arranged along the back side (the surface facing the downstream side of the water flow W) of each of the vertical bars 21a,. It is going to rise.

The rake-attached horizontal bars 22a2,..., Like the standard horizontal bars 22a1,..., Are horizontally long components having a length substantially the same as the entire width of the vertical screen 21. Are raised along the back side of 21a,... (The surface facing the downstream side of the water flow). FIG.
As shown in the figure, the rake portions r,... Are provided on the rake-equipped horizontal bars 22a2, ... toward the upstream side in the flowing direction of the flowing water (that is, the direction opposite to the flowing direction).
Are formed so as to protrude from the slits s3 (in the gaps) of the vertical bars 21a,... By a predetermined dimension.

Accordingly, each raked horizontal bar 22a2,
, The surface facing the back side of each vertical bar 21a,.
The pitch interval between the rake portions r,... Is the same as the pitch interval between the slits s3 of the vertical screen 21. Therefore, the raked horizontal bars 22a2,... Engage with the respective rake portions r,... Into the respective slits s3,. Vertical screen 21 along the direction
The vertical screen 21 is raised from the bottom of the
The garbage caught in the sea can be scraped and collected on the water. Moreover, each rake side bar 2
Since the overall length of 2a2,... Is approximately the same as the width of the vertical screen 21, dust can be removed over substantially the entire surface of the vertical screen 21.

The rake-equipped horizontal bar 22a described above.
, And the standard horizontal bars 22a1,... Are integrally formed as an annular horizontal screen 22 with the slits s4,. That is, as shown in FIG.
, And the standard horizontal bars 22a1,... Are connected to circulation drive chains 23a, 23a described later at both ends, thereby forming an endless belt-shaped horizontal screen 22. The standard horizontal bars 22a1,.
Are arranged continuously in plurals, and the raked horizontal bar 22a
Are arranged intermittently.

As shown in FIG. 5, the lower portion of the horizontal screen 22 formed in an endless belt shape is submerged,
In addition, a vertical circulating portion that rises and descends along the tilting direction of the vertical screen 21 and a vertically folded portion are formed, and the circulating drive chains 23a, 23a circulate in the arrow direction while synchronizing. , And operates in a circular manner. As shown in FIG. 7, the circulating horizontal screen 22 overlaps the vertical bars 21a,... And the horizontal bars 22a,. , A circulation rising type lattice surface is formed in the water channel P.

As shown in FIG. 5, the circulating drive mechanism 23 includes a circulating drive chain 23a and a guide portion 23 for guiding and supporting the folded portion of the circulating drive chain 23a.
b and 23c, and a drive motor (not shown) for circulating the circulating drive chain 23a.
The control device controls activation, stop, rotation speed adjustment, and the like of the drive motor. The washing mechanism 25 includes a washing water supply source (not shown) that supplies washing water, and a shower ring 25a that sprays washing water CW from the washing water supply source from the inside to the outside of the horizontal screen 22. The injection of the cleaning water CW can be stopped or started by the control device.

The discharge trough 24 includes a horizontal screen 22.
Is a trough that covers the area from the outside of the cleaning water CW to the position just below the folded portion at the upper end of the horizontal screen 22 and dust falling from the horizontal screen 22 due to its own weight or the water pressure of the cleaning water CW. J can be transferred to a garbage disposal plant (not shown).

The operation of the dust remover 20 according to this embodiment having the above-described configuration will be described below. First, the injection of the cleaning water CW from the shower ring 25a to the horizontal screen 22 is started by an instruction from the control device, and at the same time, the circulation drive motor 23d is started. Then, the circulating drive chains 23a, 23a are synchronously rotated by the rotational driving force, and at the same time, the horizontal screen 21 is circulated. The standard horizontal bar 22a1 and the rake horizontal bar 22a2 of the horizontal screen 22 circulated and driven in this manner begin to overlap with the vertical screen 21 in the portion (b) of FIG. Then
Since each of the rake portions r,... Protrudes upstream from the front surface of the vertical screen 21, the dust caught by the vertical bars 21a,.

Each of the horizontal bars 22a,... At the time of ascending overlaps with each of the vertical bars 21a,. Since this mesh has a finer mesh size than a conventional dust remover having a vertically slit screen, for example, it is possible to efficiently capture fine dust that was conventionally difficult to catch. . In addition, since trapping is performed using a grid-like mesh, conventional slender slits can efficiently capture even slender-shaped garbage that would pass if flowing in parallel to the slit. Has become.

The horizontal screen 22 which has continued to ascend and has passed the folded portion starts to descend this time while separating from the vertical screen 21. At this time, each vertical bar 21
Each horizontal bar 22 after the combination with a,.
a,... are obtained by unraveling the lattice-like fine mesh and leaving only larger slit-like openings (slits s4,...). In comparison, the scraped-up dust is more easily dropped by its own weight than the horizontal bars 22a,. In such a state that the trash can easily fall, the shower ring 2
By spraying the washing water CW on the horizontal bars 22a,... From 5a, the washing water CW is dropped into the discharge trough 24 including fine dust. The garbage thus captured is discharged through the discharge trough 24 to the refuse disposal plant.

According to the dust remover 20 of the present embodiment described above, the combination of the vertical bars 21a,... And the horizontal bars 22a,. Since a grid surface can be formed, it is possible to capture dust and dust having a size and shape that were difficult to capture with a conventional dust remover. Also, by providing the rake portions r,... For each of the rake-equipped horizontal bars 22a2,..., Dust larger than the mesh can be caught, so that the dust can be scraped up more efficiently. It is possible. In addition, by disposing the horizontal screen 22 on the rear side of the vertical screen 21, the pressure of running water flowing in the water channel P and all dust are not directly received by the horizontal screen 22 but temporarily hit the vertical screen 21. Because the horizontal screen 22 receives the water flow, relatively fine dust, and the like after the deceleration, the load on the circulation driving mechanism 23 that circulates the horizontal bars 22a,... Can be reduced.

[0044]

According to the dust remover of the first aspect of the present invention, a circulation rising grid surface is formed in the flow path by a combination of a plurality of vertical bars and a plurality of horizontal bars. Therefore, it is possible to capture dust and the like having a size and a shape that were difficult to capture with a conventional dust remover. Claim 2
According to the dust remover described in (1), the comb teeth that rise along the gaps between the vertical bars are provided, so that dust and the like sandwiched between the gaps can be scraped efficiently.

Further, according to the dust remover according to the third aspect,
By providing the rake portion, dust and the like can be easily caught on each horizontal bar, so that the dust and the like can be scraped up more efficiently. According to the dust remover of the fourth aspect, the scraped-up dust and the like are easily dropped from each horizontal bar, and the horizontal screen is easily cleaned. Therefore, it is possible to reduce the problem that the dust and the like once scraped are returned into the flow path again.

According to the dust remover of the fifth aspect,
Since each horizontal bar (horizontal screen) moves along the front surface of each vertical bar (front surface of the vertical screen), it is possible to efficiently scrape dust and the like attached to the front surface of the vertical screen. Further, according to the dust remover according to claim 6, instead of directly receiving the pressure of the fluid flowing in the flow path or all dust and the like on the horizontal screen, the fluid after being temporarily decelerated on the vertical screen is hit. Since the horizontal screen receives relatively fine dust and the like, the load on the circulation drive mechanism that circulates the horizontal bar can be reduced.

[Brief description of the drawings]

FIG. 1 is a side view showing a first embodiment of a dust remover of the present invention.

FIG. 2 is a main part perspective view showing a combination of a vertical screen and a horizontal screen of the dust remover.

FIG. 3 is a view of the same combination of the dust removers as viewed from an arrow B in FIG. 2;

FIG. 4 is a cross-sectional view of the same combination of the dust removers as viewed from the line CC in FIG. 3;

FIG. 5 is a side view showing a second embodiment of the dust remover of the present invention.

FIG. 6 is a main part perspective view showing a combination of a vertical screen and a horizontal screen of the dust remover.

FIG. 7 is a view of the same combination of the dust removers as viewed from an arrow D in FIG. 6;

FIG. 8 is a cross-sectional view of the same combination of the dust removers as viewed from the line EE in FIG. 7;

FIG. 9 is a view showing an example of a conventional dust remover,
9A is a side view, and FIG. 9B is a partially enlarged view of a part of the dust removing screen as viewed from an arrow A in FIG. 9A.

[Explanation of symbols]

 10, 20: dust remover 11: vertical screen 11a, 21a: vertical bar 12a, 22a: horizontal bar 22: horizontal screen J: dust (dust etc.) k: comb Tooth P: water channel (flow path) r: rake R: detachment s1, s3: slit (gap between vertical bars)

Claims (6)

[Claims] 1. A dust remover for scraping up and removing dust and the like in a flow path, comprising: a vertical screen in which a plurality of vertical bars for vertically cutting the flow path are fixed in parallel; A horizontal screen in which a plurality of horizontal bars circulating along the vertical screen are arranged in parallel. By superimposing the vertical bars and the horizontal bars, a circulation rising type A dust remover characterized by forming a lattice plane. 2. The dust remover according to claim 1, wherein at least one of the horizontal bars is inserted into a gap between the vertical bars and rises along the gap. A dust remover characterized by having a part. 3. The dust remover according to claim 1, wherein at least one of the horizontal bars is provided with a rake portion formed so as to protrude toward an upstream side in a flowing water inflow direction. A dust remover characterized by being used. 4. The dust remover according to claim 1, wherein each of the horizontal bars has a detachment portion that separates from the vertical bars when the horizontal bar is turned over at an upper end of each of the vertical bars. A dust remover. 5. The dust remover according to claim 1, wherein the horizontal screen is disposed on a front side of the vertical screen. 6. The dust remover according to claim 1, wherein the horizontal screen is disposed on a rear side of the vertical screen.