JP2002285527A - Dust removing equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide dust removing equipment capable of efficiently utilizing a channel width to ensure the current of the channel, facilitating the disposal of dust or the like and having a structure capable of easily making maintenance. SOLUTION: The dust removing equipment for removing dust or the like is set in the channel. The channel is constituted of a main channel 2 having a gate pump 10 and a dust collecting channel 4 for collecting the dust or the like branched from the main channel 2 and provided by neighboring to the main channel. A screen 6 provided to the main channel 2 to cut off the dust or the like in the channel from the current and inclined in the direction of a water current to lead the dust or the like is placed. The dust or the like led by the screen 6 flows in the dust collecting channel 4 to collect the dust or the like by a dust removing device 7. The main channel 2 is opened except when it is forcedly discharged by the gate pump 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a dust removing facility. More specifically, the intake of a dam or river channel, or
The present invention relates to a dust removal facility for removing dust on a screen provided upstream of a drainage gutter (gutter pipe) of a waterway.

[0002]

2. Description of the Related Art Conventionally, various types of dust removing equipment have been proposed. One that lifts the screen to the surface of the water with a lifting device to remove dust entangled on the screen, and one that removes dust by moving the rake up and down on the screen by the chain method. Further, a device in which a side wall formed by a guide plate is tapered from the upstream to the downstream side of the water channel in the water channel, and the trapped dust is removed outside the water channel by the removing means. Further, an inclined screen is provided between a dust remover installed crossing the waterway and a side wall of the waterway, and dusts guided by the screen are collected by the dust remover. Further, a dust remover is provided so as to cross the water channel, and the rake of the dust remover collects dust and collects it in a dust collecting tank. Alternatively, there is known a screen in which a rotatable scraper is provided in a water channel, dust is protruded forward and collected by the rotation of the scraper, and the dust is crushed.

[0003]

All of the conventional methods are of the type in which a dust removing device is provided in the same water channel. When installing a dust removal device, it will be designed and manufactured so that the device including the screen is installed at the same width as the water channel, and a method of collecting and collecting dust on the screen through a guide Since the dust removal device would be installed in the same waterway, a part of the waterway was used for collecting garbage and the effective use of the waterway was restricted.

[0004] Therefore, the efficiency of use of the water channel is not good, and if the width of the water channel is widened to solve this problem, the device will inevitably become large. Furthermore, the fact that all devices are integrated in the same channel with constant flow is
The problem is that the maintenance of the equipment is complicated, and the work must be performed in the flow of the water channel. This is because even if the dust removing device breaks down, the amount of water flowing down the water channel must be secured.

[0005] The present invention has been made based on the above technical background, and in order to solve these conventional problems, the present invention achieves the following objects. The purpose of the present invention is
It is an object of the present invention to provide a dust-removing facility that can effectively use a width of a water channel to secure a flow in a main water channel and easily perform garbage disposal. Another object of the present invention is to provide a dust-removing device that is small and simple in size, and is a low-cost device that is easy to maintain.

[0006]

SUMMARY OF THE INVENTION A dust removing apparatus according to the present invention is a dust removing apparatus installed in a water channel for removing dust, which is provided adjacent to the main water channel, which branches off from the main water channel. A dust collection channel for collecting collected dust, a dust guide device provided in the main channel, for catching dust in a channel from a flow and guiding the dust to the dust channel, and the dust device provided in the dust channel. And a dust removal device that collects and removes the dust guided by the class guide device.

[0007] A pump is provided at a drain gutter gate or a gutter pipe installed in the main channel, and has a pump for forcibly draining water flowing through the main channel. The dust guide device may have any structure and function as long as it captures dust in a water channel from a flow and guides the dust to the dust collection channel as illustrated below.

[0008] Further, the dust guide device may be a screen which is provided to be inclined in a flowing water direction and guides the dust to the dust collecting channel along an inclined surface of the screen. May be provided so as to traverse the dust at right angles to guide the dust to the dust collecting channel.

Further, the dust guide device may be configured to perform a vibration or a swinging operation to guide the dust to the dust collecting channel, and to blow out air or water to the dust. A configuration may be adopted in which dust is guided to the dust collecting channel.

Further, the dust guiding device may be provided with a scraping device for forcibly scraping dust into the dust collecting channel, and the dust guiding device may be provided with a side wall of the main channel during natural drainage. Alternatively, it may be configured to be able to be stored on the water surface of the main waterway.

Further, the dust guide device is constituted by a screen and a screw conveyor over the width of a water channel, and the dust caught by the screen is transferred to the dust collecting channel via the screw conveyor. The scraping device may be configured to guide the dust caught by the screen sideways with a rake and guide the dust to the dust collecting channel.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The contents of the present invention will be described below with reference to the drawings. Normally, a gate pump (registered trademark) equipment such as a drainage gutter is provided at the boundary between the main river and the tributary river, and the upstream water having a high water level, that is, the water of the tributary river is naturally drained downstream, that is, toward the main river. Has been made. Most streams are usually due to natural drainage.

In this case, the gate pump is open. However, if the water level of the main river becomes higher than that of the tributary due to rainfall due to a typhoon or discharge of a dam, the gate pump is closed and the pump is operated. Perform forced drainage. However, since various dusts are mixed and flow from the upstream, the dusts are removed upstream of the pump suction port.

[0014] The present invention is to create a technique particularly related to dust removal. FIG. 1 is a perspective view of a dust removing facility 1 showing a basic configuration of the present invention, and is a view schematically showing the entire facility. The flowing water flows in the main waterway 2 from the direction A of the arrow to the direction B. The channel has a constant channel width by a channel wall 3 made of concrete.

This waterway is a main waterway 2 near the boundary flowing as a natural stream from the upstream and flowing from the tributary to the main river. In natural flowing water, in general, driftwood and the like, and trash such as vinyl are mixed and flow. In addition, when forced drainage is performed by a pump, dust having a certain size or more must be removed as much as possible to avoid pump trouble.

A dust collecting channel 4 for collecting dust is provided adjacent to the main water channel 2. In the main waterway 2, a screen 6 is installed in the vicinity of the entrance 5 to the dust collection waterway 4 across the entire width of the main waterway 2 obliquely across the main waterway 2. Further, a dust remover 7 for collecting and removing collected dust is provided at the end of the dust collection channel 4 at the back of the dust collection channel 4. Since the dust collecting channel 4 is a channel for collecting dust, it has a smaller width than the main channel 2.

As described above, various kinds of dust including the tree branches and the vinyl fragments are flowing in the natural flow of the main waterway 2 when passing through the urban area. The screen 6 captures and removes these dusts from the flow in the water channel. The dust caught by the screen 6 is guided to the dust collecting channel 4 by a water flow along the slope of the screen 6.

The screen 6 has various configurations.
To explain in a general example, a plurality of pipes in the width direction of the waterway,
It is composed of stainless steel bars or piano wires, etc., arranged side by side in a grid pattern, or almost horizontally in a substantially square frame, fixed or supported on both sides of pipes, stainless steel bars, piano wires etc. It has a structure that captures dust and allows water to pass through this gap. The dust trapped on the screen 6 is drawn into the dust collecting channel 4 and is removed by the dust remover 7.
Stay at. The dust is collected outside the water channel by the dust remover 7 and processed. The water passing through the screen 8 arranged at the drain of the dust collecting channel 4 is guided to the main river side B through the gate 9. The gate 9 is lifted upward in the case of a normal natural flow to open and open.

In this embodiment, two pumps 10 are provided at the gate 9. However, this pump 10
The number of installations is not limited to two, and the required number may be installed according to the conditions of the equipment. When the outside water level becomes high and there is a danger of outside water flowing into the inside water level side, the pump 10 lowers the gate pump (meaning the one in which the gate 9 and the pump 10 are integrated). This is for forcibly draining water to the outside water side. In addition, since the structure is such that natural drainage is possible, when the flow rate of natural drainage is not large, drainage can be performed only by natural drainage on the pump 10 side even when the gate 9 is closed. The basic structure of the dust removal equipment 1 of the present invention is as described above.

[Embodiment 1] Next, a specific configuration example will be described with reference to FIGS. 2 to 4 are plan views of a mode in which the screen 11 is attached at an angle.
The screen 11 is provided with a sub-screen 13 on the channel wall 12 side. The sub-screen 13 is attached to the water channel wall 12 at an angle different from that of the screen 11 in a direction crossing the water channel, that is, at an angle at which dust is easily guided to the dust collecting water channel 14.

The basic structure of the screen 11 is as described above. The screen 11 is provided with a scraping device 15 for scraping dust and a lifting device 16 for lifting the screen 11. Although details are not shown, an outline thereof will be described. Any method may be used to scrape the garbage.
An endless rake moving chain is provided on the upper portion of the screen 11, and a rake moving chain is similarly provided on the water bottom side across the width of the screen 11, and is driven by a motor with a reduction gear.

One or more rakes are attached to the chain.
Between the screen bars, and endlessly rotate while catching garbage. The trapped trash is led to the dust collecting channel 14. As described above, since the dust is guided to the dust collecting channel 14 along the inclined surface by the water flow and also guided by the scraping device 15, the dust collecting process can be reliably performed.

Next, with respect to the lifting device 16, conventionally, the entire device including the dust remover is often lifted in the case of maintenance, etc., but in this embodiment, the dust is removed except at the time of forced drainage by the pump. The facility opens the main waterway 2 and drains water by natural flow. Therefore, only the screen 11 needs to be pulled up. On both sides of the screen 11, frame bodies 16a are fixedly installed.

The screen 11 is turned up and down by the turning support shaft 16b provided on the frame body 16a, and lifts the screen 11 out of the upper waterway, and is fixed in a horizontal state (the position of the dashed line in FIG. 4). In this state, drainage by natural flow can be performed, and maintenance of the screen 11 can be performed regardless of the presence or absence of flow in the water channel. Further, the screen 11 may be configured so as to be moved toward the waterway wall side to perform maintenance.

By adopting such a configuration, the operation is facilitated, the processing at the time of maintenance and the like are accelerated, and the efficiency is improved. A dust remover 17 is provided at an end of the dust collecting channel 14. The dust collecting channel 14 is located at the end of the dust remover 17 and serves as a dust container. This dust remover 17
A known rake may be applied, and a detailed description of the structure is omitted. However, the rake holds the dust and moves in a vertical direction by a driving means such as a wire to collect the dust. The collected garbage is guided out of the waterway and processed on the ground.

The dust remover 17 is a small-sized dust remover which is installed in accordance with the width of the dust collecting channel 14 which is narrower than the width of the main channel 2. The dust collecting channel 14 has a device for draining the water after scraping the dust, and the water from which the dust is removed is returned to the main channel 2 from the side of the dust collecting channel 14. Therefore, the water does not stay in the dust collecting channel 14,
It will circulate continuously to the main waterway 2 and flow. The water returned through the dust remover 17 and the water passed through the screen 11 are drained to the main river via the pump 19 as water with little dust.

Second Embodiment FIGS. 5 to 7 show a dust removing apparatus according to a second embodiment of the present invention. Next, FIG.
7 to 7, another embodiment in which the form of the screen is changed will be described. In this example, the screen 21 is installed over the entire width of the water channel in a direction perpendicular to the flowing direction of the main water channel 22. A dust collecting channel 23 is provided adjacent to the main water channel 22, and the screen 21 is provided near the entrance of the dust collecting channel 23. This screen 21 has a grid-like slit form, or
Both sides of a pipe, a stainless steel bar, a piano wire or the like are fixed or supported and arranged substantially horizontally in a substantially square frame, so that dust is captured.

However, since the screen 21 is set horizontally, dust must be forcibly guided to the dust collecting channel 23. For this purpose, a horizontal dust collector 24 is provided on the screen 21 and always guides the dust horizontally, that is, toward the dust collecting channel 23 side. For the method of this side scraping,
Although there are various methods such as rocking, in the present invention, the above-mentioned lateral rake method using a rake is applied.

As another method, as will be described later, it is possible to apply swaying or vibration to move the dust horizontally, or to blow air or the like to forcibly move the dust to the dust collecting channel side. Is also good. Further, the lifting device 25 is provided for maintenance or the like, in exactly the same manner as in the above-described embodiment. As shown by the dashed line in FIG. 7, the screen 21 is lifted to a horizontal position outside the waterway and fixed for maintenance.

Further, a dust remover 26 is provided at an end of the dust collecting channel 23.
Is provided, and its function is the same as that of the above-described embodiment. In the second embodiment, the dust remover 26 is provided for forcibly removing dust, but the installation position of the dust remover 26 may be replaced with a dust remover and configured as a dust collecting portion. . Which configuration to adopt may be selected according to the environment and conditions of the waterway. The drainage from the dust remover 26 and the drainage passing through the screen 21 are drained to the main river via a pump 27.

[Third Embodiment] As a further specific embodiment of the present invention, an example of application to a water channel equipped with a gate pump will be described below. FIG. 8 shows a third embodiment of the dust removal equipment of the present invention. The dust removal equipment according to the third embodiment is a horizontal bar type, and captures dust by a horizontal screen 32 that is installed inclined over the width of the main water channel 31. The captured dust is guided to the dust collecting channel 33 along the slope of the screen 32, and is discharged out of the channel by the simple dust remover 34 provided in the dust collecting channel.

In this case, the simple type dust remover 34 is of a simple type, and the dust is guided upward by a water flow, or a simple drive device is provided to guide the dust upward, and the dust is continuously removed. The water from which dust has been removed and drained
To return to the main waterway 31. This drain 3
A fine screen 36 is attached to 5 to remove fine dust.

The dust removing equipment shown in FIG.
2 is of the same type, but the treatment of dust is different from that shown in FIG. As shown in FIG.
The trash guided to 3 is collected in a screen-shaped bucket 37 provided at the end of the dust collecting channel 33. The collected dust is collected by tilting the bucket 37.
It is moved to a trash receptacle 38 provided adjacent to the outside of the waterway. The treatment in this case is not performed continuously, but is removed in a batch manner when dusts accumulate to some extent during natural drainage.

FIG. 10 is a side sectional view showing a dust removing facility for treating garbage in a jana manner. The structure is similar to this Yana type, that is, a mechanism for catching fish in the river shore. The screen 39 is installed so as to be inclined with respect to the channel bottom and straddle the channel. The dust is guided upward by the water flow along the inclined surface of the screen 39, and is collected in the receiving space 40 outside the upper waterway. The collected dust is appropriately processed.

FIG. 11 shows an air (or water) jetting type, in which a screen 42 is installed in a main channel 41 at an angle.
Is provided with an ejection device 43 for ejecting air (or water). Therefore, the dust trapped on the screen 42 is guided to the dust collecting channel 44 along the inclined surface of the screen 42 by the jet pressure of air or water. Dust is collected in a dust collecting space 45 at the end of the dust collecting channel 44. Although not shown in FIG. 11, the collected dust is removed by a dust remover or the like.

FIG. 12 shows a case where dust is collected by a horizontal bar swing type arranged in a main waterway. The horizontal bar swing type swings horizontally a screen 47 which is horizontally inclined and inclined in a main water channel 46, and collects dust trapped on the screen 47 in a dust collection provided adjacent to the main water channel 41. The dust is collected in a trash receptacle 49 in the water channel 48. The screen 47 is swung by using a horizontal bar provided in the screen 47 in a lattice shape in a horizontal direction by a rocking device 50 provided on a channel wall of the main channel 46.
Do with.

The trash moves along the inclined surface of the screen 47 and is collected in the trash accumulation 49. The collected garbage is disposed of as appropriate. The screen 47 swings in the horizontal direction about a fulcrum provided at one end of the water channel wall 51. When natural drainage occurs, the screen 47 is moved toward the water channel wall 51 and stored.

FIG. 13 shows a dust-collecting facility which can swing a Jana type. That is, this is a system in which a Yana type screen shown in FIG. 10 is vertically swung. One end of the screen 53 is connected to a rocking device 52 provided above the water channel, and the screen 53 is rocked with a part as a fulcrum 54. The dust is guided upward along the inclined surface of the screen 53 by the water flow. This upper part constitutes a dust storage part 55 straddling the dust collecting channel.

The screen 53 is divided into two parts, and a second screen 56 is swingably installed in the dust storage part 55 adjacent to the screen 53. When the garbage is collected, it is in contact with the screen 53 and is closed. At the time of natural drainage, the screen 53 is arranged and fixed on the water surface side by swinging (in a dashed line position).
Separate from 3 (dashed line position) and treat garbage.

FIG. 14A is a plan view of a system in which a screw conveyor 59 is added to a canner type. FIG.
(B) is a front view thereof. A dust collecting channel 58 is provided adjacent to the main channel 57, and a screw conveyor 59 is stretched across the dust collecting channel 58 over the entire width of the main channel 57 in a direction perpendicular to the direction of water flow of the main channel 57. I have. The screw conveyor 59 is fixed to the channel wall 60. Screens 61 and 62 are provided above and below the screw conveyor 59.

The lower screen 61 swings about the center of the screw conveyor 59 as an axis, and its lower end contacts the bottom of the water channel to form a groove. Dust flowing in the water is captured by the screen 61, guided upward by the water flow, and taken into the screw conveyor 59. On the other hand, a screen 62 is also provided above the screw conveyor 59 so as to protrude above the water surface.
The dust that flows in the upper part of 9 is captured and taken into the screw conveyor 59.

The trash taken into the screw conveyor 59 is guided to the dust collecting channel 58 by the rotation of the screw and is collected in the storage space 63. The sump space 63 is provided with a drainage port 64 for returning water from which dust is removed to the main waterway 57 and discharging the same, and a fine screen 65 for catching fine dust is provided in the drainage port 64. Installed. In addition, the case of the screw conveyor 59 constitutes a punching metal 66, and has a structure in which countless holes are formed so that water can flow downstream of the main water channel 57.
In the case of natural drainage, the lower screen 61 is swung in the direction of the water surface to retreat, and the flow is released.

FIG. 15 is a plan view of a multi-cylinder type dust removing facility for scraping dust. A screen 68 is provided across the entire width of the main channel 67 in a direction perpendicular to the water flow direction of the main channel 67. The grid portion of the screen 68 is provided with a scraping member 69 for guiding the dust caught by the screen 68 in the horizontal direction, and one end of the scraping member 69 is connected to the rod 71 of the cylinder 70. . The scraping member 69 repeats the reciprocating operation to guide the dust to the dust collecting channel 72. The cylinder 70 is of a multistage type and has a long stroke corresponding to the width of the water channel and is provided behind the screen 68.

The cylinder 70 is a cylinder 70
The end portion can be swung about a fulcrum.
Moves to the dust collecting channel 72 side and scrapes the refuse, and then returns to the original position.
8 (e.g., the position of the dashed line).
When returning to the original position, the scraping member 69 is engaged with the screen 68 again and repeats the above-described reciprocating operation. The dust collected by the dust collecting channel 72 is removed from the channel by a simple dust remover 73. The water from which the refuse has been removed is returned to the main water channel 67 through the fine screen 75 of the drain port 74.

FIG. 16 shows a spiral screen type. The screen 76 is of a spiral type, and dusts trapped on the screen 76 are collected by a dust collecting channel 77.
And is a type of scraping device. As shown in FIGS. 17 and 18, the screen 76 is twisted so as to form a water channel in four stages, and has a configuration in which a plurality of screens are vertically arranged. The row with a large gap and easy flow moves in the horizontal direction by rotation, and the flow follows it (in the direction of the arrow).

The four stages are as follows: (a) position; water is hard to flow; (b) position; water is slightly hard; (c) position; water is easy to flow; (d) position; water is slightly hard to flow. It has become. The plurality of screens 76 are
The screen 81 is simultaneously rotated through a sprocket and a chain 82 by a motor 81 installed at an upper portion, and the rotation of the screen 76 changes the flow position one after another. It is intended to lead to the direction. The water from which the refuse is removed is discharged to the main waterway through the fine screen 80 of the drain port 79 in the same manner as described above.

Although specific examples associated with the installation of the dust collecting channel according to the present invention have been described above, it is needless to say that the present invention is not limited to these examples. It is also possible to configure by combining the specific examples described above. In addition, the present invention can be applied to, for example, sewage treatment facilities and the like other than rivers.

[0048]

As described above, according to the present invention, by providing the dust collecting channel, the width of the channel can be effectively utilized to secure the flow in the main channel, thereby facilitating the disposal of dust.
Further, the dust removing device can be reduced in size and simplified, and a low-cost dust removing facility that is easy to maintain can be provided.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a dust removing facility of the present invention.

FIG. 2 shows a screen installed at an angle in a waterway;
It is a top view showing Embodiment 1 which leads garbage to a dust collection channel.

FIG. 3 is a front view of FIG. 2;

FIG. 4 is a view on arrow AA of FIG. 2;

FIG. 5 is a plan view showing a second embodiment in which a screen is installed in a direction crossing the water channel at right angles to guide dust to the dust collecting water channel.

FIG. 6 is a front view of FIG. 5;

FIG. 7 is a view taken in the direction of arrows BB in FIG. 5;

FIG. 8 is a plan view of a dust removing facility showing a horizontal bar type.

9 (a) is a plan view of a dust removing facility showing a horizontal bar type for batch processing of garbage, and FIG. 9 (b) shows a bucket portion of the dust removing facility of FIG. 9 (a). It is a partial front view.

FIG. 10 is a side sectional view showing a dust removing facility for treating garbage in a canna type, in which this state is shown.

FIG. 11 is a plan view of a dust removal facility showing an air (or water) ejection type.

FIG. 12 is a plan view of a dust removing facility showing a horizontal bar swing type.

FIG. 13 is a front view of a dust removing facility showing a rocking type.

FIG. 14 (a) is a plan view of a dust remover showing a Jana type provided with a screw conveyor, and FIG. 14 (b)
14 is a front view of FIG.

FIG. 15 is a plan view of a multi-cylinder type dust removing facility for scraping dust.

FIG. 16 is a plan view of a dust removing facility showing a spiral screen type.

FIG. 17 is an explanatory diagram showing details of the spiral screen shown in FIG. 16;

18 (A) to 18 (D) are explanatory diagrams in which the spiral screen cross sections of FIG. 17 are arranged corresponding to different twist positions.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Dust removal equipment 2 ... Main waterway 3,12 ... Waterway wall 4,14,23 ... Dust collection waterway 6,11,21 ... Screen 7,17,26 ... Dust removal device 9 ... Gate 10,19,27 ... Gate pump 15 ... Scraping device 16,25 ... Pulling device 24 ... Scraping dust collector 37 ... Bucket 38 ... Garbage receiver 43 ... Squirting device 50,52 ... Swing device 59 ... Screw conveyor 69 ... Scraping member 70 ... Cylinder

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kunihisa Chiba 15-1, Ise-cho, Saga-shi, Saga F-term in Mizota Co., Ltd. 2D019 AA41 BA01

Claims (10)

[Claims] Claims 1. A dust-removing device installed in a waterway for removing dust, comprising: a main waterway; and a dust-collecting waterway branched from the main waterway and provided adjacent to the main waterway for collecting dust. A dust guiding device provided in the main waterway to capture dust from the flow from the flow and guide the dust to the dust collecting water channel; and a dust collector provided in the dust collecting water channel and guided by the dust guide device. Dust removal equipment consisting of a dust removal device that removes dust. 2. The dust removal equipment according to claim 1, further comprising a pump provided at a drain gutter gate or a gutter pipe gate installed in the main water channel, for forcibly draining the flowing water in the main water channel. Dust removing equipment. 3. The dust removal equipment according to claim 1, wherein the dust guide device is a screen, which is provided to be inclined in a flowing water direction, and collects the dust along the inclined surface of the screen. Dust removal equipment characterized in that it is configured to lead to a dust channel. 4. The dust removal equipment according to claim 1, wherein the dust guide device is a screen, which is provided across the direction of flowing water at right angles, and scrapes dust to the dust collecting channel. Dust removal equipment characterized in that it is configured to guide. 5. The dust removal equipment according to claim 1, wherein the dust guiding device is configured to perform a vibration or a swinging operation so as to guide the dust to the dust collecting channel. Dust removing equipment. 6. The dust removal facility according to claim 1, wherein the dust guide device is configured to eject air or water to the dust, and the dust is collected by the dust collecting channel. Dust removal equipment characterized by the fact that it leads to the. 7. The dust removal equipment according to claim 1, wherein the dust guide device is provided with a scraping device for forcibly scraping dust to the dust collecting channel. Facility. 8. The dust removal equipment according to claim 1, wherein the dust guide device can be stored on a side wall of the main waterway or on a water surface of the main waterway during natural drainage. And dust removal equipment. 9. The dust removal equipment according to claim 1, wherein the dust guide device comprises a screen and a screw conveyor over a width of a water channel, wherein the dust is caught by the screen. Dusts are introduced to the dust collecting channel via the screw conveyor. 10. The dust removal equipment according to claim 7, wherein the scraping device is configured to laterally scrape the dust caught by the screen with a rake and guide the dust to the dust collecting channel. Dust removal equipment.