JPH0449309A - Net rake type dust remover - Google Patents

Abstract

PURPOSE:To make it possible to reduce the number of dust removers to be installed by half by placing an endless net to a water channel so that it is capable of circulating in the up and down directions, and providing a rake on the peripheral surface of the net so that it is capable of circulating in the up and down directions. CONSTITUTION:An endless net 4 is placed between frames on both right and left sides of a body so that it is capable of circulating in the slant direction of up and down. After that, an upper net drum 5 is interlocked and coupled with a motor through a decelerator. Then a plurality of net receiving levers 9 are horizontally provided to the inside of the endless net 4, and a rake 10 is placed on the peripheral surface of the endless net 4 so that it is capable of circulating in the up and down directions. When the upper net drum 5 is rotated, small sized dust bonded to the net 4 is moved together with the net 4, the dust drops at a position where the net 4 is inverted downward, and it is discharged in a dust removing conveyer 15. Dust raked up with the rake 10 is discharged in the dust removing conveyer 15.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a dust remover installed in a waterway or the like in order to remove dust that washes up in water facilities such as a drainage pump station, and is particularly applicable to large-sized dust and This invention relates to a net rake type dust remover that can remove both small-sized dust and dirt.

[Conventional technology]

BACKGROUND ART Conventionally, for example, rake-type de-weighting machines and net-type dust removers have been known as dust removers installed in waterways and the like in order to remove dust that washes up in water facilities such as drainage pump stations.

Among these, the rake-type dust remover moves the rake in circulation along the surface of the screen by the circulation movement of endless chains installed on both the left and right sides of the screen installed in the waterway.
The structure is such that the rake that moves upward removes debris that washes up on water facilities.

This rake-type dust remover has the advantage of being able to continuously remove dust, especially large-sized dust, and allowing the scraped up dust to fall easily into a chute.

In addition, a net type dust remover places a fine net in an endless manner in a waterway, circulates this endless net in the vertical direction, moves the dust that has accumulated in the eyes of the net upward, and removes it from the inside of the net. The structure is such that the dust that collects in the mesh of the net is removed by a jet of water from the net.

This net-type dust remover has the advantage of being able to remove dust continuously, especially small-sized dust.

[Problem to be solved by the invention]

However, while the rake type dust remover described above can easily remove large pieces of dust, even if the screen pitch is narrow, there are gaps between the bars that make up the screen, so small pieces of dust can be removed from these gaps. It has the disadvantage that it cannot pass through and remove small-sized dust.

In addition, while the net-type dust remover mentioned above can easily remove small-sized dust, it cannot deal with large-sized dust, and has the disadvantage that a separate dust-removal machine must be installed upstream to remove large-sized dust. there were.

This invention was devised in order to solve the above-mentioned problems, and its purpose is to arrange an endless net in a waterway so that it can circulate freely in the vertical direction. By arranging a rake around the outer periphery of the net so that it can freely circulate in the vertical direction, large-sized garbage can be removed by the rake, and small-sized garbage can be removed by the net.
To provide a net rake type dust remover capable of removing both large-sized dust and small-sized dust.

[Means to solve the problem]

In order to achieve the above object, the present invention has a structure in which an endless net is arranged in a waterway so as to be able to circulate freely in the vertical direction, and a rake is arranged around the outer periphery of the net so as to be able to freely circulate in the vertical direction. be.

[Operations] The present invention having the above configuration operates as follows.

In other words, an endless net is arranged in a waterway so that it can freely circulate in the vertical direction, and a rake is arranged around the outer periphery of the net so that it can freely circulate in the vertical direction. Large-sized garbage can be scraped up by the rake that circulates upward. In addition, small-sized garbage can be removed by being attached to a circulating net and carried upwards, and both large-sized and small-sized garbage can be removed.

〔Example〕

Hereinafter, the present invention will be described in more detail based on embodiments shown in the drawings.

First Embodiment Here, FIG. 1 is an overall side sectional view, FIG. 2 is an overall front view,
FIG. 3 is a plan sectional view of the driving part, FIG. 4 is a side sectional view, and FIG. 5 is an enlarged sectional view of the lower part of the dust remover.

In the figure, both left and right sides of the main body of the net rake type dust remover 1 are constituted by a pair of frames 2, and the frames 2 are arranged inside both side walls of a water channel 3 so as to be inclined downstream.

The lower end of the frame 2 is fixed to the bottom surface of the water channel 3, and the upper part protrudes above the water channel 3 and curves toward the downstream side.

An endless net 4 is disposed between the left and right frames 2 so as to be able to circulate freely in the diagonal vertical direction. The net 4 is for preventing small-sized garbage from flowing down, and therefore the mesh size of the net 4 is small enough to prevent small-sized garbage from flowing down. The net 4 may be made of, for example, a mesh material or a high tensile strength fiber material. In particular, when a high tensile strength fiber material is used, the weight of the net 4 can be reduced.

An endless net 4 is stretched between an upper net drum 5 and a lower net drum 6, which are horizontally installed between the left and right frames 2, so as to be able to circulate freely in the vertical direction. The upper net drum 5 and the lower net drum 6 serve to invert the net 4. Among these, the upper net drum 5 is interlocked and connected to a motor 8 as a drive source via a speed reducer 7, and the upper net drum 5 rotates by the drive of the motor 8 and circulates the net 4 in the vertical direction. make it move. These speed reducer 7 and motor 8 are attached to the outside of the upper curved portion of frame 2 . Further, inside the endless net 4 arranged diagonally in the vertical direction, a plurality of net supports 9 are horizontally arranged vertically to support the net 4 from inside.

On the outer periphery of the endless net 4, a rake 10 for removing large-sized garbage is arranged so as to be able to circulate freely in the vertical direction. The rake 10 extends in the width direction of the net 4, and both ends thereof are connected and held by an endless main chain 11. The primary chain 11 serves to circulate the rake 10. The main chain 11 is connected between a drive sprocket 12 provided at the upper curved part of the frame 2, a lower inverted part 13 provided at the lower part of the frame 2, and an upper inverted part 14 provided at the tip side of the curved upper part of the frame 2. It is set up on.

The drive sprocket 12 functions to drive the main chain 11, and is fixedly attached to the same shaft as the upper net drum 5, and is operatively connected to the motor 8 via the reducer 7. . That is, the driving sprocket 12 is driven by the motor 8 which is the driving source for the upper net drum 5, and rotates together with the upper net drum 5.

The lower reversing section 13 and the upper reversing section 14 are connected to the main chain 1
The upper reversing part 14 also has the function of applying tension to the main chain 11.

The upper reversing section 14 is composed of a roller that can freely rotate in forward and reverse directions, but instead of the roller, a sprocket that can freely rotate in forward and reverse directions may be provided, or a non-rotating member may be provided. The shape of the non-rotating member may be any shape as long as it allows the main chain 11 to be reversed to be smoothly guided in reverse, for example, it may be semicircular or circular. Further, the lower inverted portion 13 may also have a similar structure to the upper inverted portion 14.

On the upper side of the net rake type dust remover 1, a dust conveyor 15 for discharging the dust raked up by the net 4 and the rake 10 is provided so as to cross the water channel 3. In addition, the net 4 near the dust conveyor 15 is used to collect the dust stuck to the net 4 and scraped up by the dust conveyor 15.
Brushings 16 are disposed inside and outside the net 4 in the width direction to discharge the net 4. This brushing 16 is rotated by a motor 17 and has the function of scraping off dust adhering to the net 4.

A tensioning device 18 for tensioning the net 4 is provided. The tension applying device 18 applies tension to the net 4 by moving the lower net drum 6 diagonally up and down.

In addition, an auxiliary screen 1 is installed to prevent dust from flowing down from the gap between the lower end of the net rake type dust remover 1 and the bottom of the water channel 3.
9 is installed on the bottom of the waterway 3.

Next, the operation based on the configuration of the first embodiment will be explained.

When the motor 8 is operated, the rotational speed of the motor 8 is reduced to an appropriate rotational speed by the reducer 7, and then the upper net drum 5 and The drive sprocket 12 is rotated at the same reduced rotational speed. The upper net drum 5 and the drive sprocket 12 begin to rotate together at the same rotational speed.

When the upper net drum 5 rotates, the upper net drum 5
The net 4 stretched between the net drum 6 and the lower net drum 6 begins to circulate in the vertical direction. The circulating motion of the net 4 is such that the upstream net 4 moves upward and the downstream net 4 moves downward. The small pieces of dust settled on the net rake type dust remover 1 adhere to the net 4 moving upward. Small debris attached to the net 4 moving upward is removed from the net 4.
At the same time, it moves upward and rises to the position of the upper net drum 5, where it turns downward and descends. At the point where the net 4 is turned downward, a part of the dust adhering to the net 4 naturally peels off and falls, and is discharged into the dust conveyor 15 directly below.

The remaining dust still adhering to the net 4 is rubbed from the inside and outside by brushings 16 provided inside and outside the net 4 above the dust removal conveyor 15. For this reason, the remaining dust stuck between the eyes of net 4 can also be removed by brushing 1.
6, the dust is scraped off from the net 4, falls into the dust removal conveyor 15, and is discharged. The net 4 that has scraped off the adhering dust moves downward, is reversed by the lower net drum 6 at the lowest end, and changes its moving direction upward again. Then, new debris adheres to the net 4 whose moving direction has been changed upward, and the same operation is repeated thereafter to remove small debris.

On the other hand, when the driving sprocket 12 rotates, the main chain 11 stretched between the lower reversing part 13, the driving sprocket 12, and the upper reversing part 14 starts circulating in the vertical direction. The left and right main chains 11 meshing with the drive sprocket 12 each circulate at the same speed in a constant direction. That is, the primary chain 11 on the upstream side of the net 4 moves upward, and the primary chain 11 on the downstream side of the net 4 moves upward.
moves downward. A rake 10 is installed horizontally between the main chains 11 on both sides which are circulating, and the rake 10 moves the main chain 1 in conjunction with the circulating movement of the main chain 11.
It circulates in the same direction as 1. That is, the rake 10 rises on the upstream side of the net 4, passes through the upper end of the net 4, turns around at the upper reversing part 14, and descends on the downstream side of the net 4.

Then, by the rake 10 moving upward, the net 4
Large pieces of debris that have washed upstream are being scraped up. The dust scraped up by the rake 10 is discharged through the upper end of the net 4 to a dust conveyor 15 installed horizontally above the waterway 3. The rake 10 that discharged the garbage to the dust removal conveyor 15
descends, passes through the lower end of the net 4, scrapes up the dust again, and repeats the same operation.

1.Second embodiment- Here, FIG. 6 is an overall side sectional view.

In this second embodiment, unlike the first embodiment, the circulation route of the net 4 is the same as that of the rake 10. For this reason, an upper reversing net drum 20 is newly provided on the same axis as the upper reversing section 14. Also,
A net 4 is stretched between the upper reversing net drum 20 and the lower net drum 6, so that the frame 2 is formed in a diagonally linear shape on the downstream side, and is wider on the downstream side than in the first embodiment. It has become. Further, the dust conveyor 15 is installed below the upper reversing net drum 20, and the dust conveyor 15 is installed below the upper inverted net drum 20.
It has moved to the downstream side compared to the example.

Furthermore, in this second embodiment, the brushing 16 is not used as a device for scraping off the dust adhering to the net 4, but instead, for example, jet water (not shown) is used to scrape off the dust adhering to the net 4. It has become. Other configurations other than this are substantially the same as those of the first embodiment, so similar configurations are given the same reference numerals and explanations thereof will be omitted.

Further, the operation based on the configuration of the second embodiment is substantially the same as that of the first embodiment except that the dust adhering to the net 4 is scraped off by using jet water instead of the brushing 16. The explanation will be omitted.

It should be noted that this invention is not limited to the above embodiments, and it goes without saying that various modifications can be made without departing from the spirit of the invention.

For example, in the above embodiment, the case where the reducer 7 and the motor 8 are provided outside the frame 2 has been explained, but as shown in FIG. 7, the reducer 7 and the motor 8 are installed inside the shaft. It may be a structure that is provided.

In addition, in the above embodiment, the drive points of the net 4 and the rake 1O are provided in the upper curved part of the frame 2, but instead of this, the driving parts of the net 4 and the rake lO are provided in the reversed part on the tip side of the curved upper part of the frame 2. It may be provided.

〔Effect of the invention〕

As is clear from the above description, according to the net rake type dust remover according to the present invention, an endless net is disposed in a waterway so as to be able to circulate freely in the vertical direction, and a rake is circulated in the vertical direction around the outer periphery of the net. Due to the movable arrangement, among the debris that lands on the dust remover, large debris can be scraped up and removed by the rake that circulates upward. Moreover,
Small debris that cannot be removed by rake can be deposited on a circulating net and carried upwards for removal.

In this way, it is possible to remove both large and small debris that washes up on the dust remover. It is not necessary to install the dust removers separately on the upstream side and the downstream side, and therefore, the number of installed dust removers can be halved, which is a novel and beneficial effect.

[Brief explanation of the drawing]

1 to 5 show a first embodiment of a net rake type dust remover according to the present invention, in which FIG. 1 is an overall side sectional view, FIG. 2 is an overall front view, and FIG. 3 is an overall front sectional view. FIG. 4 is a plan sectional view of the driving location, FIG. 3 is a side sectional view, and FIG. 5 is an enlarged sectional view of the lower part of the dust remover. FIG. 6 is an overall sectional side view of another embodiment, and FIG. 7 is a side sectional view of a driving portion according to another embodiment. [Explanation of symbols] 1: Net rake type dehawking machine 2: Frame 3: Water channel 4: Net 5: Upper net drum 6: Lower net drum 7: Reducer 8: Motor 9: Net receiver 10: Rake
11: Main chain 12: W-moving sprocket 13: Lower reversing section 14: Upper reversing section 15: Dust conveyor 16: Brushing 17: Motor 18:
Tensioning device 19: Auxiliary screen 20: Upper inverted net drum Patent applicant Nishida Tekko Co., Ltd. Agent Patent attorney Tadashi Harasaki Figure 2'''6 Figure 1 Figure 3 Figure 4 Figure 5 Figure 7]?

Claims (1)

[Claims] 1. A net rake type dust remover, characterized in that an endless net is disposed in a waterway so as to be able to circulate freely in the vertical direction, and a rake is disposed around the outer periphery of the net so as to be freely cyclically movable in the vertical direction.