JPH0449311A - Net rake type dust remover - Google Patents

Abstract

PURPOSE:To simplify the construction of a dust remover placing an endless net in a water channel so that it is capable of circulating in the up and down directions, placing a rake to the peripheral surface of the net so that it is capa ble of circulating in the up and down directions and, at the same time, mounting the rake to the net together as a unit. CONSTITUTION:An endless net 4 is placed between right and left frames so that it is capable of circulating in the slant up and down directions. After that, an upper net drum 5 is interlocked and coupled with a motor 8 through a decel erator 7. Then, a plurality of net receiving levers are horizontally provided up and down to the inside of the net 4. A rake 10 is mounted to the outside surface of the net 4 together as a unit. Large-sized dust is raked by the rake 10 circulating upward to remove, and small-sized dust is bonded to the circula tion net 4 and is carried upward to remove. In addition, the rake 10 and net 4 are circulated together as a unit to simplify the construction.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a dust remover installed in waterways to remove dust settled in water facilities such as drainage pump stations, and in particular, it relates to a dust remover installed in waterways etc. to remove dust settled in water facilities such as drainage pump stations, and in particular, This invention relates to a net rake type dust remover which removes both kinds of dust and has a simplified structure by integrally attaching the rake to the net.

[Conventional technology]

BACKGROUND ART Conventionally, for example, rake-type dust removers and net-type dust removers have been known as weight removing machines installed in waterways and the like to remove dust that settles 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.
It is designed to remove debris that settles on irrigation facilities by raking up the rake that moves upwards.

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 clearing machine described above can easily remove large debris, even if the bar pitch of the screen is narrowed, there are gaps between the bars that make up the screen, so small debris can be removed from these gaps. There was a drawback that small particles could not be removed.

In addition, while the net-type hawking machine mentioned above can easily remove small-sized debris, it cannot deal with large-sized debris, and a separate hawking machine must be installed upstream to remove large-sized debris. There were some drawbacks.

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 debris, by integrally attaching the rake to the net, it prevents damage to the net surface due to rake sliding, and the structure eliminates the need for a rake chain to attach the rake. The purpose of the present invention is to provide a net rake type dust remover that can simplify the process.

[Means to solve the problem]

In order to achieve the above object, the present 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. It consists of a structure that is integrally attached to the net.

[Effect]

The present invention having the above configuration operates as follows.

That is, an endless net is disposed in the 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 the rake is integrally attached to the net. Large garbage can be removed by raking it up with a rake that circulates upward, and small garbage can be removed by being attached to a circulating net and carried upwards, making it possible to remove both large and small garbage. Furthermore, by integrally attaching the rake to the net, the rake and the net circulate in unison, eliminating the drawback of the rake sliding on the net surface and eliminating the need for a rake chain to attach the rake. It acts to simplify its structure.

〔Example〕

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

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 drive location, and FIG. 4 is a side sectional view.

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 projects above the water channel 3.

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 horizontally installed between the left and right frames 2, and stretched between an upper net drum 5, an auxiliary net drum 5a, and a lower net drum 6 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.

Of 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 is rotated by the drive of the motor 8.
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, the auxiliary net drum 5a functions to apply tension to the net 4, and has a structure that allows it to slide horizontally. 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 the inside.

A rake 10 for removing large debris is integrally attached to the outer surface of the endless net 4. rake 10
extends in the width direction of the net 4 and is connected and held to the outer surface of the net 4.

On the upper side of the net rake type dust remover 1, a dust conveyor 11 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 11 is used to collect the dust stuck to the net 4 and scraped up by the dust conveyor 11.
If necessary, a mechanism for spraying water onto the net 4 may be provided to discharge the water. Further, an auxiliary screen 12 is installed on the bottom surface of the water channel 3 to prevent dust from flowing down from the gap between the lower end of the net rake type dust remover 1 and the bottom surface of the water channel 3.

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

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 auxiliary net drum 5a 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. Also, at this time, the rake 10 that is integrally attached to the net 4
will also move with Net 4.

The small pieces of dust settled on the net rake type dust remover 1 adhere to the net 4 moving upward. The small pieces of dust adhering to the net 4 moving upward moves upward together with the net 4 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, the dust adhering to the net 4 is naturally peeled off and falls, and is discharged into the dust conveyor 11 directly below.

The net 4, which has dropped the attached dust into the dust removal conveyor 11, 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, large debris settled on the upstream side of the net 4 is scooped up by the rake 10 that moves upward. The dust scraped up by the rake 10 is discharged through the upper end of the net 4 to a dust conveyor 11 installed horizontally above the waterway 3. Rake 10 that discharges dust to dust conveyor 11
descends, passes through the lower end of the net 4, scrapes up the dust again, and repeats the same operation.

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. 5, the reducer 7 and the motor 8 are provided inside the shaft. It may be a structure that is provided.

Further, in the embodiment described above, the driving portions of the net 4 and the rake 10 are provided on the upper net drum 5, but they may be provided on the auxiliary net drum 5a instead.

〔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 movably disposing the rake and integrally attaching the rake to the net, among the trash that settles in the dust remover, large trash can be raked up and removed by the rake that circulates upward. Furthermore, small-sized debris that cannot be removed by rake can be removed by being attached to the circulating net and carried upwards. Furthermore, by integrally attaching the rake to the net, the rake and the net can circulate integrally, thereby eliminating the drawback that the rake slides on the net surface and damages the net surface.

In this way, it is possible to remove both large and small garbage that settles in the dust remover, and unlike conventional dust removers, it is possible to remove both large and small garbage. There is no need to install separate dust removers on the upstream and downstream sides, and therefore the number of dust removers installed can be halved. Moreover, by integrally attaching the rake to the net, a rake chain for attaching the rake can be omitted, and the structure of the dust remover can be simplified, which brings about extremely novel and beneficial effects.

[Brief explanation of drawings]

The drawings show an embodiment of the 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, FIG. 3 is a plan sectional view of the driving part, and FIG. Figure 4 is the third
The figure is a side sectional view. FIG. 5 is a side sectional view of a drive location according to another embodiment. [Explanation of symbols] 1: Net rake type dust remover 2: Frame 3: Waterway 4: Net 5: Upper net drum 5a: Auxiliary net drum 6: Lower net drum 7 Two reducers
8: Motor 9: Net receiver 10: Rake 11: Dust conveyor Patent applicant Nishida Iron Works Co., Ltd. Representative Patent attorney Tadashi Harasaki Figure 2 Figure 3 Figure 4

Claims (1)

[Claims] 1. An endless net is arranged in the waterway so that it can circulate freely in the vertical direction, a rake is arranged around the outer periphery of the net so that it can freely circulate in the vertical direction, and the rake is integrally attached to the net. Net rake type dust remover.