JPH0449310A - Net rake type dust remover - Google Patents

Abstract

PURPOSE:To make it possible to use one unit of a dust remover properly by placing an endless net to a water channel in the up and down directions, placing a rake on the peripheral surface of the net and, at the same time, separating a driving means to circulate the net and rake. CONSTITUTION:An endless net 4 is placed between right and left frames so that it is capable of circulating in the up and down directions. After that, an upper net drum 5 is interlocked and coupled with a motor 8 through a decelera tor 7. Then, a rake 10 is placed on the peripheral surface of the endless net 4 so that it is capable of circulating in the slant up and down directions. A driving sprocket 12 is fixed to a different shaft from the upper net drum 5, and it is interlocked and coupled with a separate motor 16 different from the decelerator 7 and motor 8 through a decelerator 15. One unit of a dust remover is so used properly that the motor 8 of the net 4 is only driven to use it for a net type dust remover and that the motor 16 of the rake 10 is only driven to use it for a rake type dust remover.

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 which removes both small-sized dust and which circulates the rake and net separately.

[Conventional technology]

BACKGROUND ART Conventionally, for example, rake-type dust removers and net-type dust removers are known as dust removers installed in waterways 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.
In addition to removing both large and small garbage, it can be used as a net-type dust remover by driving only the net sliding means, or as a rake-type dust remover by driving only the rake driving means, 1 To provide a net rake type dust remover which can be used as both types of dust remover.

[Means to solve the problem]

In order to achieve the above objects, this invention arranges an endless net in a waterway so that it can freely circulate in the vertical direction, and arranges a rake around the outer periphery of the net so that it can freely circulate in the vertical direction. The structure includes a driving means for moving the rake and a separate driving means for circulating the rake.

[Effect]

The present invention having the above configuration operates as follows.

That is, an endless net is disposed in a waterway so as to be able to circulate freely in the vertical direction, a rake is disposed around the outer periphery of the net so as to be freely cyclically movable in the vertical direction, and a driving means for circulating the net and the rake are made to be circularly movable. Due to the configuration in which separate drive means are provided, large-sized garbage can be scraped up and removed by the rake that circulates upward, small-sized garbage can be removed by being attached to the circulating net and carried upwards, and large-sized garbage can be removed by It works to remove both dust and small-sized dust,
Furthermore, it can be used as a net-type dust remover by moving the net drive means AH, and it can be used as a rake-type dust remover by driving only the rake drive means, so one dust remover can function as both types of dust remover. It works in such a way that it can be used for different purposes.

〔Example〕

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

1. 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 side surfaces 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 toward the downstream side.

The lower end of the frame 2 is fixed to the bottom surface of the water channel 3, and the upper part protrudes upward from 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 diagonal up and down directions. 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 due to the drive of the motor 8, causing the net 4 to circulate in the vertical direction. . 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.

A rake 10 for removing large debris is disposed on the outer periphery of the endless net 4 so as to be movable diagonally up and down. 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 driving sprocket 12 provided at the tip side of the curved upper part of the frame 2, a lower reversible part 13 provided at the lower part of the frame 2, and an upper guide guide 14 provided at the upper curved part of the frame 2. It is set up on.

The driving sprocket 12 functions to drive the main chain 11, and this driving sprocket 12 is fixedly installed on a shaft different from the upper net drum 5, and is decelerated by a separate motor 16 different from the aforementioned reducer 7 and motor 8. They are interlocked and connected via a machine 15. In other words, the drive sprocket 12 is driven by a motor 16 that is a different drive source than the upper net drum 5.
The upper net drum 5 rotates independently of the upper net drum 5. Further, the drive sprocket 12 also has the function of applying tension to the main chain 11.

The lower reversing section 13 and the upper guide 14 function to reverse and guide the main chain 11, but in particular, the upper guide 14 guides the main chain 11 so that it does not hit the upper net drum 5. . Furthermore, although the lower reversing section 13 is composed of a roller that can freely rotate forward and backward, a sprocket that can freely rotate forward and backward may be provided in place of the roller, 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.

A dust conveyor 17 for discharging the dust raked up by the net 4 and the rake 10 is provided on the upper side of the net rake type dust remover 1 so as to cross the water channel 3. In addition, the net 4 near the dust conveyor 17 is used to collect the dust stuck to the net 4 and scraped up by the dust conveyor 17.
Brushings 18 are disposed inside and outside the net 4 in the width direction to discharge the net 4. This brushing 18 is rotated by a motor 19 and has the function of scraping off dust adhering to the net 4.

A tensioning device 20 for tensioning the net 4 is provided. The tension applying device 20 applies tension to the net 4 by moving the lower net drum 6 diagonally up and down.

In addition, an auxiliary screen 2 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.
1 is installed on the bottom of the waterway 3.

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

When it is desired to circulate the net 4, the motor 8 is operated. When the motor 8 is operated, its rotational speed is reduced to an appropriate rotational speed by the reducer 7, and then rotates the upper net drum 5, which is interlocked and connected to the reducer 7, at the same reduced rotational speed. let The upper net drum 5 starts rotating 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 that have settled on the net rake type dust remover a1 adhere to the net 4 that moves 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 is naturally peeled off and falls, and is discharged into the dust conveyor 17 directly below.

The remaining dust still adhering to the net 4 is rubbed from the inside and outside by brushings 18 provided inside and outside the net 4 above the dust removal conveyor 17. For this reason, the remaining dust stuck between the eyes of net 4 can also be removed by brushing 1.
8, the dust is scraped off from the net 4, falls into the dust removal conveyor 17, 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, if you want to circulate the rake 10, the motor 1
6 is activated. When motor 16 is activated, motor 1
6 has its rotational speed reduced to an appropriate rotational speed by a reducer 15, and then rotates the drive sprocket 12 interlockingly connected to the reducer 15 at the same reduced rotational speed. The pair of left and right drive sprockets 12 each start rotating at the same rotational speed.

When the drive sprocket 12 rotates, the lower reversible portion 13,
The primary chain 11 stretched between the drive sprocket 12 and the upper guide 14 begins to circulate in the vertical direction. The left and right main chains 11 that engage with each driving sprocket 12 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 that are circulating, and the rake 10 is interlocked with the circulating movement of the main chain 1.
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 lO moving upward, the net 4
A large pile of debris settled on the upstream side of the river is 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 17 installed horizontally above the waterway 3. The rake lO that discharged the garbage to the dust removal conveyor 17
descends, passes through the lower end of the net 4, scrapes up the dust again, and repeats the same operation.

1.2nd 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 22 is newly provided on the same axis as the driving sprocket 12.
It is held so that it can rotate freely.

In addition, the upper inverted net drum 22 and the lower net drum 6
A net 4 is stretched between them, so that the frame 2
The downstream side is formed in a diagonally linear shape, and is wider on the downstream side compared to the first embodiment. Further, the dust conveyor 17 is installed below the upper reversing net drum 22, and has been moved downstream compared to the first embodiment.

Furthermore, in this second embodiment, the brushing 18 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 18. 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 reduction gear 7 and the motor 8 are provided outside the frame 2, but as shown in FIG. A structure in which a motor 8 is provided may also be used. Similarly, regarding the reducer 15 and motor 16,
The structure may be built inside the shaft.

In addition, in the above embodiment, the driving portion of the net 4 is the frame 2.
Although the case has been described in which the drive point of the rake 10 is provided at an inverted point on the tip side of the curved upper part of the frame 2, these may be provided in the opposite state. , and may also be provided at the same location. If installed in the same location, reducer of one drive source,
The motor is built-in.

〔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. By arranging the net movably and providing separate drive means to circulate the net and separate drive means to circulate the rake, large pieces of garbage among the garbage that washes up on the dust remover are circulated upward. It can be removed by rake. Furthermore, small-sized debris that cannot be removed by rake can be removed by being attached to the circulating net and carried upwards.

In this way, it is possible to remove both large and small garbage that washes up on the weight remover. , there is no need to install them separately on the upstream and downstream sides, and therefore the number of installed weight removers can be halved.

Moreover, by providing separate drive means for circulating the net and separate drive means for circulating the rake, it is possible to drive only the net drive means and use it as a net-type dust remover, and to drive only the rake drive means. It can be used as a rake-type weight remover, and one dust remover can be used as both types of dust removers, which is a very novel and beneficial effect.

[Brief explanation of drawings]

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 dust remover 2: Frame 3: Waterway 4: Net 5: Upper net drum 6: Lower net drum 7: Reducer 8: Motor 9: Net receiver 10: Rake
11: Main chain 12: Drive sprocket 13: Lower reversing section 14: Upper reversing section 15: Reducer 16: Motor 17: Dust conveyor 18 nibbling 19: Motor 20: Tensioning bag W2
1: Auxiliary screen 22: Upper inverted net drum Fig. 1 Patent applicant Nishida Tekko Co., Ltd. Agent Patent attorney Masazaki Harasaki Fig. 2 Fig. 5 Fig. 3 Fig. 4 Fig. 7

Claims (1)

[Claims] 1. An endless net is arranged in a waterway so that it can be freely circulated in the vertical direction, and a rake is arranged around the outer periphery of the net so that it can be freely circulated in the vertical direction, and a drive means that circulates the net and the rake are moved in a circular manner. A net rake type dust remover characterized in that each of the net rake type dust removers is provided with a separate drive means.