WO2021221251A1

WO2021221251A1 - Screen trash removal apparatus

Info

Publication number: WO2021221251A1
Application number: PCT/KR2020/015609
Authority: WO
Inventors: 한봉희
Original assignee: 한봉희
Priority date: 2020-04-27
Filing date: 2020-11-09
Publication date: 2021-11-04
Also published as: KR102161407B1

Abstract

The present invention relates to a screen trash removal apparatus. The apparatus for removing screen trash filtered by a screen (20) mounted on each of a plurality of gates (10) provided in a facility built across a waterway comprises: a rail frame (100) provided laterally above the plurality of gates (10); a movable module (200) which is placed on the rail frame (100) and is laterally moved left, right, backwards and forwards by a control module (600) to move above any gate (10); a lifting module (300) which is mounted on the movable module (200), drives wire ropes (310) vertically downward to vertically move a collection module (400); the collection module (400) which is connected to the lifting module (300) to vertically move between the screen (20) and a discharge module (500) and collects and picks up trash caught on the front of the screen (20); and the discharge module (500) which is provided laterally under the rail frame (100) to move a conveyor (510) in one direction and picks up and transfers the trash from the collection module (400). Thus, the screen trash removal apparatus more efficiently removes screen trash of a facility provided with a plurality of gates.

Description

Screen contaminant removal device

The present invention relates to a screen contaminant removal device, and more particularly, by configuring an apparatus for collecting and removing contaminants filtered by a screen installed on a sluice gate of a facility built across a waterway, contaminants are removed around the screen and waterway. It relates to a screen contaminant removal device that prevents accumulation and facilitates water flow.

In general, wastewater or driftwood entering from upstream at each sluice gate is disposed of at drainage pumping stations, dams, weirs, and various water treatment plant facilities that are built across rivers or valleys for the purpose of storage and intake, water level control, flood control, etc. A screen is installed to filter.

The screen for filtration of contaminants prevents clogging of the sluice gate and facilitates the flow of water so that there is no load on the pump or sluice operation part during water treatment, and performs functions such as preventing water pollution.

Since contaminants are continuously introduced from the upstream and caught in such a screen, it is necessary to use a separate device to remove the contaminants caught on the screen.

As an example, in Korea Utility Model No. 20 - 0211474, there is a screen that is inclined at a certain angle to the floor to filter out dust that is washed away with water, and a screen installed at the front lower end of the screen to pass between the screen and the floor. A potential screen for filtering dust, a rake for removing trash installed at both ends of the screen to remove trash between the screen and the dislocation screen, and a drive motor for driving an endless chain so that the rake continuously rotates on the screen; , a guide plate installed on the upper part of the screen to bend the upper part to the rear for smooth rotation of the rake rotated by the endless chain and complete removal of dirt, and a guide installed on both sides of the lower part of the screen to guide the rotation driving of the endless chain It constitutes a contaminant removal device including a rail.

As another example, Korean Patent Registration No. 10 - 1250776 discloses a screen plate having a gentle curved inclination as a whole and having a number of micropores formed in the lower part, and a side plate having a flange portion formed on the upper side while covering both sides of the screen plate. The main body, the lifting chain connected to the first and second sprockets symmetrically provided to the first and second rotation shafts provided on the upper and lower sides of the side plate of the body, respectively, and the first rotation shaft installed in the flange portion of the screen plate A fine tree for removing impurities comprising: a motor for rotating the lifting chain by transmitting a driving force to the lifting chain; make up the screen

As another example, Korean Patent No. 10-1473166 discloses a waterway through which sewage flows, a screen installed on the waterway to filter out impurities contained in the sewage, a rake for removing impurities caught in the screen, and a rake It includes a rake driving unit for driving, and the rake includes a rake arm that moves by being coupled to the rake driving unit, and a plurality of rake blades that are formed to protrude from one end of the rake arm and are respectively inserted into the screen gaps on the screen, including rake As the rake moves along the screen surface by the driving unit, it constitutes a screen contaminant treatment system that moves contaminants caught on the screen to one side of the waterway.

[Prior art literature]

[Patent Literature]

(Patent Document 1) Korean Utility Model Registration No. 20 - 0211474 (January 15, 2001)

(Patent Document 2) Korean Patent Registration No. 10 - 1250776 (2013.04.08)

(Patent Document 3) Korean Patent Registration No. 10 - 1473166 (2014.12.22)

(Patent Document 4) Korean Patent Registration No. 10-0929037 (November 26, 2009)

The foreign matter removal device to which the prior art is applied as described above is installed to rotate a predetermined rake for each screen, and scrapes and removes dirt caught on the screen with a rake or takes the form of removing impurities.

However, in the prior art foreign matter removal device as described above, when the amount of foreign matter caught on the screen is large, there is a limit to the removal operation only by rotating the rake to remove the surface, and the circulation operation of the rake is interfered by foreign matter. In addition, there is a problem that the rake continues to operate even in a waterway without contaminants, which can not be excluded from the possibility of lowering work efficiency or causing a malfunction due to increased load.

In addition, as another example, the screen contaminant treatment system is configured to move contaminants caught on the screen to one side of the water channel while driving by inserting a rake blade into the screen gap along the surface of the screen.

However, the above-described contaminant treatment system of the prior art has a limit that can be applied only to a screen that repeatedly forms a straight void in which the rake blade can be inserted, as well as the rake blade and contaminants in the process of removing contaminants from the rake blade screen. It contains a problem that cannot be excluded from the possibility of causing damage to the screen by being caught in the gaps of the

Accordingly, the present invention was invented to solve the problems of the prior art as described above,

In the screen contaminant removal device filtered by the screen 20 installed for each of the plurality of sluice gates (10) provided in the facility built across the waterway,

A rail frame 100 provided horizontally from the upper side of the plurality of sluice gates 10,

A moving module 200 that is seated on the rail frame 100 and moves to the upper part of any sluice gate 10 by moving left, right and front and back by the control module 600;

A lifting module 300 mounted on the moving module 200 and driven vertically downward by the wire rope 310 to follow the collection module 400;

A collection module 400 coupled to the elevating module 300 to follow between the screen 20 and the discharge module 500 and to collect and lift contaminants caught in front of the screen 20;

A plurality of sluice gates are provided by including a discharge module 500 for transporting contaminants from the collection module 400 and lifting the contaminants from the collection module 400 and driving the conveyor 510 in one direction by transversely provided at the lower part of the rail frame 100 . It is possible to achieve the purpose of more efficiently removing screen contaminants from the facility.

The present invention provides a screen contaminant removal device for more efficiently removing contaminants filtered by a screen installed on the sluice gate of a facility built across a waterway, such as a drainage pumping station, a dam or various water treatment plants.

In particular, the present invention has an advantage in that, when contaminants are accumulated on any screen among the screens installed for each sluice gate, the removal device moves freely toward the screen and automatically performs a series of processes for collecting or discharging contaminants.

Therefore, the present invention is compared to the prior art of a configuration of repeatedly rotating a rake or scraping a rake to remove impurities on the surface of the screen or in a straight void, the operation of the removal device is interfered with by impurities or causes damage to the screen, etc. It can be excluded, and there is an effect of remarkably saving energy by preventing the problem that the rake must be continuously operated even in a waterway without contaminants.

1 is a plan view (a) and a front view (b) of a screen contaminant removal device according to the present invention.

Figure 2 is a side view of the screen contaminants removal device according to the present invention.

Figure 3 is a schematic plan enlarged view of the screen contaminants removal device according to the present invention.

Figure 4 is a front enlarged view of the screen contaminants removal device according to the present invention.

Figure 5 is an enlarged side view of the screen contaminants removal device according to the present invention.

6 is a front view showing the operating gripper (a) and the fixed gripper (b) of the screen contaminant removal device according to the present invention.

Figure 7 is a side view showing the collection module of the screen contaminants removal device according to the present invention.

Figure 8 is a front view (a) and a side view (b) showing the discharge module of the screen contaminants removal device according to the present invention.

9 is a schematic illustration of an operating state of the screen contaminant removal device according to the present invention.

Hereinafter, the configuration and operation of the screen contaminant removal device according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings. In the following description, a detailed description of a part that can be easily implemented by a person skilled in the art may be omitted.

1 is a plan view (a) and a front view (b) of a screen contaminant removal device according to the present invention, FIG. 2 is a side view of a screen contaminant removal device according to the present invention, and FIG. 3 is a schematic view of a screen contaminant removal device according to the present invention In a planar enlarged view, Figure 4 is a front enlarged view of the screen impurities removal device according to the present invention, Figure 5 is an enlarged side view of the screen impurities removal device according to the present invention, Figure 6 is the operation of the screen impurities removal device according to the present invention A front view showing the gripper (a) and the fixed gripper (b), FIG. 7 is a side view showing the collection module of the screen contaminant removal device according to the present invention, and FIG. 8 is a discharge module of the screen contaminant removing device according to the present invention. The front view (a) and side view (b) shown, Figure 9 shows a schematic operation state example of the screen contaminants removal device according to the present invention.

The screen contaminant removal device to which the technology of the present invention is applied more effectively collects contaminants filtered by the screen 20 installed on the dam or weir constructed across rivers or valleys, and the sluice gate 10 of various water treatment plant facilities. Note that it relates to a device that is configured to be removed.

For this purpose, the screen contaminant removal device of the present invention moves along the upper part of the sluice gate 10 to remove contaminants filtered by the screen 20 installed for each sluice gate 10 as shown in FIG. A screen contaminant removal device is constructed to perform consists of including

The rail frame 100 is provided horizontally on the upper side of the plurality of sluice gates 10 to establish a support and movement base for the removal device.

The rail frame 100 is made of a pair of rails and is provided at the upper end of the facility on the upper side of the sluice gate 10, but the sluice gate 10 and the screen 20 are located below the upper side of the rail so that the elevating module to be described later ( 300) and the collection module 400 are configured to follow.

A discharge module 500, which will be described later, is provided on the lower side of the rail frame 100 and interlocks with the elevating module 300 and the collection module 400, so that the rail frame 100 is installed on a support of a certain height to install the discharge module It is provided so as to be located on the upper side of the 500 .

The moving module 200 is seated on the rail frame 100 and is configured to move to the upper part of an arbitrary sluice gate 10 by moving left, right, front and rear by the control module 600 .

The moving module 200 is equipped with a lifting module 300 and a collection module 400, which will be described later, so as to be moved to any sluice gate 10 among a plurality of sluice gates 10 or to be positioned as a discharge module 500. As a provided configuration, as shown in FIGS. 2 and 3 , it consists of a first moving frame 210 and a second moving frame 220 .

The first moving frame 210 is equipped with a driving means interlocking with the control module 600 and is provided to move left and right on the rail frame 100 to move to the upper part of any sluice gate 10 .

The first moving frame 210 is a pair of left and right parallel bars corresponding to a pair of rails constituting the rail frame 100, and another pair of connecting between the left and right parallel bars. Equipped with parallel bars before and after.

The first moving frame 210 is provided with rollers interlocking with the driving means at the lower four places of the left and right parallel bars of the first moving frame 210, so that the first moving frame 210 is installed in the rail frame 100 according to the control signal of the control module 600. ) The image is configured to move left and right.

A rail structure is formed at the upper end of the parallel bars before and after the first moving frame 210 so that the following second moving frame 220 moves forward and backward on the first moving frame 210 .

The second moving frame 220 is equipped with a driving means interlocking with the control module 600 , and proceeds forward and backward on the first moving frame 210 to discharge the screen 20 from the upper part of the sluice gate 10 . It is provided to move between the modules (500).

The second moving frame 220 is provided with a pair of moving bars corresponding to the front and rear parallel bars of the first moving frame 210, and a moving support connecting the moving bars to the elevating module 300 to be described later. configured to be installed.

The second moving frame 220 is provided with rollers interlocking with the driving means at four lower portions of the moving bar of the second moving frame 220 so that the second moving frame 220 is moved to the first moving frame 210 according to the control signal of the control module 600 . The front and rear parallel bars are configured to move forward and backward.

The lifting module 300 is mounted on the moving module 200 and configured to follow the collection module 400 by driving the wire rope 310 vertically downward.

The elevating module 300 is rotated by a driving means interlocking with the control module 600 and is composed of a rotating shaft and a roller to wind the wire rope 310 . As shown in FIGS. 4 and 5 , the wire rope 310 is provided with a pair spaced apart by a predetermined distance on both sides of the left and right sides so that the collection module 400, which will be described later, is coupled and ascended. A predetermined hose reel is provided on one side of the lifting module 300 to supply hydraulic pressure to the gripper operation unit 440 of the collection module 400 to wind or unwind the hydraulic supply hose according to the lifting operation of the collection module 400 . configure to do

The collection module 400 is coupled to the elevating module 300 to follow between the screen 20 and the discharge module 500 and collects and lifts impurities caught in front of the screen 20 .

As shown in FIG. 7, the collection module 400 collects impurities caught in front of the screen 20 and lifts them to a discharge module 500 to be described later. A lifting frame 410 and a fixed gripper ( 420 , an operating gripper 430 , and a gripper operating unit 440 .

The elevating frame 410 is coupled to the wire rope 310 of the elevating module 300 to be elevated.

The lifting frame 410 is provided in the shape of a horizontal bar provided on the lower side on the same center line as the lifting module 300 to couple the wire rope 310, and the following fixed grippers 420 and operation grippers 430 are provided at both ends. It is provided with a predetermined support frame to mount the.

It is preferable that the lifting frame 410 has a predetermined horizontal width so that the following fixed gripper 420 and the operating gripper 430 maintain the center of gravity from the lower side.

The fixed gripper 420 is mounted on one side of the lower portion of the lifting frame 410 to ascend and descend along the surface of the screen 20 .

The fixed gripper 420 is formed in a plate shape with a grid structure corresponding to the lateral width of the screen 20 as shown in FIG. 6 to separate foreign substances from the screen 20 and guide it to the space between the operating gripper 430 and the following. It is provided so as to ascend and descend along the surface of the screen (20).

A guide roller 421 is mounted on one side of the fixed gripper 420 so as to roll the surface of the screen 20 when ascending and descending. The guide roller 421 is, for example, when the screen 20 is provided to have an inclination angle of about 80 degrees like the conventional dam sluice screen 20, by the wire rope 310 of the elevating module 300. The collection module 400, which is provided to ascend and descend in the direction of gravity, is provided to be naturally driven along the inclination angle of the screen 20.

A scraper 422 inclined downward toward the surface of the screen 20 is mounted at the lower end of the fixed gripper 420 . The scraper 422 is configured to collect contaminants remaining on the surface of the screen 20 by applying, for example, a nylon brush material.

The operation gripper 430 is provided to collect contaminants by hingedly coupling a fixed shaft 431 to the lower portion of the other side of the lifting frame 410 and driving toward the fixed gripper 420 .

The operating gripper 430 forms a lattice structure corresponding to the lateral width of the screen 20 as shown in FIG. 6 to guide foreign matter into the space between the fixed gripper 420 and close the lower end to collect it, but is bent forward. Formed in a plate shape having a portion 432 is provided to collect contaminants.

The bent portion 432 of the operating gripper 430 is provided to form a space for collecting contaminants when closed by rotating the lower end of the operating gripper 430 toward the fixed gripper 420 .

The operating gripper 430 is configured to open or close the lower end between the fixed gripper 420 and the fixed gripper 420 by rotating the fixed shaft 431 of the elevating frame 410 by the following gripper operating unit 440 .

The gripper operating unit 440 connects the fixed gripper 420 and the upper portion of the operating gripper 430 and rotates the lower end of the operating gripper 430 with the fixed shaft 431 coupled to the lifting frame 410 as a starting point. prepare a catalog

The gripper operation unit 440 is configured to rotate the operation gripper 430 by converting the linear motion force generated by the hydraulic cylinder 442 into rotational force, and includes a cylinder 442 and an operation bar 444 .

The cylinder 442 is provided toward the operating gripper 430 by hingedly coupling one end of the first operating shaft 441 to the fixed gripper 420, and the other end is provided to expand and contract the rod.

The cylinder 442 is provided to expand and contract the rod by connecting a hydraulic supply hose provided to be wound or unwound from the hose reel of the elevating module 300 . Since the cylinder 442 rod performs an eccentric operation of the second operation shaft 443 by the fixed shaft 431 in the expansion/contraction process, one end of the cylinder 442 is hinged by the first operation shaft 441 . configure to do

The actuating bar 444 is provided in a bent shape with both ends forming an obtuse angle, one end is mounted on the actuating gripper 430 and the other end is configured by hinged coupling the second actuating shaft 443 to the cylinder 442 rod.

The operation bar 444 is configured to rotate the operation gripper 430 with the fixed shaft 431 as a starting point by eccentric rotation of the second operation shaft 443 by the cylinder 442 rod. Accordingly, the operating gripper 430 is bent at a predetermined angle to form an operating radius in which an open or closed state is realized.

The discharge module 500 is provided horizontally at the lower portion of the rail frame 100 to drive the conveyor 510 in one direction and to collect and transport contaminants from the collection module 400 .

As shown in FIG. 8 , the discharge module 500 is provided with a belt conveyor 510 to be driven in one direction by a driving means, and on a support at a predetermined height from the lower side of the rail frame 100 . It is installed so as to receive contaminants on the operating radius of the collection module 400 driven by the elevating module 300 .

The discharge module 500 is provided to drive the center of the belt in a concave shape along the traveling direction to accommodate and transport the volume of impurities, and to mount the skirts 511 at a predetermined height on both sides of the traveling direction to remove the lifted impurities. It is configured to discharge to the discharge chute 520 .

On the other hand, the control module 600 includes a control panel for controlling the overall operation of the movement module 200 to the discharge module 500 and a foreign matter detection sensor.

The control module 600 performs the contaminant removal process by the operator's setting, or the presence of contaminants on the screen 20 in which the contaminant detection sensor is installed at any sluice gate 10 among a plurality of sluice gates 10 It detects and configures the process to be fully automatic.

Looking at the contaminant removal process by the screen contaminant removal device to which the technology of the present invention is applied having the configuration as described above is as follows. Since the following description is given by way of preferred embodiments of the present invention, the present invention is not limited by the following examples, and it will be natural that various modifications may be provided without departing from the scope of the present invention. .

The present invention is applied to a facility having a plurality of sluice gates 10 such as, for example, dams or beams to perform a contaminant removal process while moving along the upper sluice gate 10. A rail frame 100, a moving module 200, and , constitutes a screen contaminant removal device including a lifting module 300 , a collection module 400 , a discharge module 500 , and a control module 600 .

In the screen contaminant removal device of the present invention, the operator controls the control module 600 to perform the contaminant removal process, or the contaminant detection sensor detects the sluice gate 10 where the water level difference occurs due to contaminants, for example, and the control module 600 ), the removal process can be performed automatically based on the control signal.

When contaminants are generated on the screen 20 installed on a specific sluice gate 10 among a plurality of sluice gates 10 , the control module 600 controls the driving means provided in the first moving frame 210 of the moving module 200 . Control to move the moving module 200 to the upper side of the corresponding sluice gate 10 along the rail frame 100 .

As shown in FIG. 9 , the control module 600 controls the driving means provided in the elevating module 300 to determine the position of the elevating module 300 along the second moving frame 220 on the screen 20 . ) to move forward.

The control module 600 controls the driving means provided in the elevating module 300 to unwind the wire rope 310 and lowers the collection module 400 toward the front of the screen 20 .

The collection module 400 coupling the lifting frame 410 to the wire rope 310 descends in the gravity direction with the lower end of the operating gripper 430 open. The fixed gripper 420 of the collection module 400 moves the guide roller 421 along the surface of the screen 20 slanted on the sluice gate 10 while stably lowering the collection module 400 and is mounted on the lower end. Removes contaminants caught in the screen 20 by the scraper 422 or stenciled.

When the collecting module 400 reaches the bottom of the screen 20, the elevating module 300 stops the unwinding of the wire rope 310, and the collecting module 400 includes a fixed gripper 420 and a bent part ( The contaminants are located between the operating grippers 430 forming the 432 .

When the control module 600 controls the cylinder 442 of the gripper operating unit 440 to extend the rod, the cylinder 442 rotates with the first operating shaft 441 as a starting point, and the operating bar 444 rotates the second It is rotated by the operation shaft 443 .

The actuating gripper 430 rotates and closes the lower end in the direction of the fixed gripper 420 from the fixed shaft 431 hinged to the elevating frame 410 by the rotation of the actuating bar 444 to close. Collect and collect

The control module 600 controls the driving means of the elevating module 300 to wind up the wire rope 310 and lift the collecting module 400 to its original position to lift the contaminants.

The control module 600 controls the driving means provided in the elevating module 300 to position the elevating module 300 along the second moving frame 220 from the front upper part of the screen 20 to the discharge module 500 ) is moved upwards.

When the control module 600 controls the cylinder 442 of the gripper operation unit 440 to expand and contract the rod, the cylinder 442 rotates in the opposite direction from the first operation shaft 441 as a starting point, and the operation bar ( 444 is rotated by the second actuating shaft 443 .

The operation gripper 430 rotates the lower end of the fixed shaft 431 hinged to the lifting frame 410 by the rotation of the operation bar 444 as a starting point to open from the fixed gripper 420. The contaminants are dropped onto the conveyor 510 belt of the discharge module 500 .

The control module 600 controls the driving means of the discharge module 500 to drive the conveyor 510 in one direction to discharge contaminants through a predetermined discharge chute 520 provided at the rear end.

As described above, when the contaminant removal process for the screen 20 of the sluice gate 10 is completed, the next operation is waited or the removal device is moved to another sluice gate 10 under the control of the control module 600 or the manager. It is made to perform a contaminant removal process.

The screen contaminants removal device according to the present invention as described above is applied to a facility constructed to have a plurality of sluice gates 10 such as dams or weirs to remove contaminants filtered by the screen 20 installed on the sluice gate 10. Provided is a screen contaminant removal device for efficient removal.

Therefore, the present invention is different from the configuration in which a removal device such as a rotary rake is mounted on a screen installed for each sluice gate as in the prior art, a removal device toward the screen 20 on which impurities are accumulated among the screens 20 installed for each sluice gate 10 It is configured to automatically perform a series of processes of moving and collecting or discharging contaminants, so there is an effect of more efficiently performing the screen contaminant removal operation.

[Explanation of code]

10: water gate 20: screen

100: rail frame 200: moving module

210: first moving frame 220: second moving frame

300: elevating module 310: wire rope

400: collection module 410: elevating frame

420: fixed gripper 421: guide roller

422: scraper 430: operating gripper

431: fixed shaft 432: bent part

440: gripper operation unit 441: first operation shaft

442: cylinder 443: second operating shaft

444: operation bar 500: exhaust module

510: conveyor 511: skirt

520: discharge chute 600: control module

Claims

A rail frame 100 provided horizontally from the upper side of a plurality of sluice gates 10 provided in a facility built across a waterway, and an arbitrary sluice gate 10 seated on the rail frame 100 and controlled by the control module 600 ) The moving module 200 to move upward, the lifting module 300 mounted on the moving module 200 and driving the wire rope 310 vertically downward to follow the collection module 400, and the lifting module ( 300) coupled to and followed by a collection module 400 that collects and lifts foreign substances caught in front of the screen 20, and a conveyor 510 provided horizontally at the bottom of the rail frame 100 to drive and collect the conveyor 510 in one direction In the screen impurities removal device filtered by the screen 20, including the discharge module 500 for receiving and transporting impurities from the module 400,

The mobile module 200,

A first moving frame 210 mounted with a driving means interlocking with the control module 600 and moving left and right on the rail frame 100 to move to the upper part of any sluice gate 10;

The control module 600 is equipped with a driving means interlocked with the first moving frame 210 and moves forward and backward on the sluice gate 10 to move between the front side of the screen 20 and the discharge module 500 at the top of the sluice gate 10 . 2 including a moving frame 220,

The first moving frame 210,

A pair of left and right parallel bars corresponding to a pair of rails constituting the rail frame 100, and another pair of front and rear parallel bars connecting between the left and right parallel bars,

The first moving frame 210 is provided with rollers interlocking with the driving means at the lower four places of the left and right parallel bars of the first moving frame 210, so that the first moving frame 210 is installed in the rail frame 100 according to the control signal of the control module 600. ) provided so that the phase moves left and right,

A rail structure is formed on the upper end of the parallel bars before and after the first moving frame 210 so that the second moving frame 220 moves forward and backward on the first moving frame 210,

The second moving frame 220,

A pair of moving bars corresponding to the front and rear parallel bars of the first moving frame 210 and a moving support connecting between the moving bars are provided so that the elevating module 300 is mounted,

The second moving frame 220 is provided with rollers interlocking with the driving means at four lower portions of the moving bar of the second moving frame 220 so that the second moving frame 220 is moved to the first moving frame 210 according to the control signal of the control module 600 . Screen contaminants removal device, characterized in that it is configured to move forward and backward on the parallel bars before and after.
The method of claim 1,

The collection module 400,

An elevating frame 410 for elevating by coupling to the wire rope 310 of the elevating module 300, and

A fixed gripper 420 formed in a plate shape of a grid structure corresponding to the lateral width of the screen 20, mounted on one side of the lower portion of the lifting frame 410, and provided to ascend and descend along the surface of the screen 20;

Forming a grid structure corresponding to the lateral width of the screen 20, but forming a plate shape having a front bent portion 432, hinged the fixed shaft 431 to the lower portion of the other side of the elevating frame 410, and fixed the gripper 420. an operating gripper 430 that drives toward and collects contaminants;

It includes a gripper operating part 440 that connects the upper portions of the fixed gripper 420 and the operating gripper 430 and rotates the lower end of the operating gripper 430 with the fixed shaft 431 coupled to the lifting frame 410 as a starting point. but,

A guide roller 421 is mounted on the rear side of the fixed gripper 420 to prevent friction by rolling while contacting along the inclined surface of the screen 20 when the collection module 400 is raised and lowered,

At the lower end of the fixed gripper 420, a scraper 422 made of a brush material inclined downward toward the surface of the screen 20 is mounted to brush contaminants remaining on the surface of the screen 20 when the collection module 400 is lowered. Screen contaminants removal device, characterized in that configured to remove.