KR20160040916A - Dust removing machine with improved rake - Google Patents

Dust removing machine with improved rake Download PDF

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Publication number
KR20160040916A
KR20160040916A KR1020140134446A KR20140134446A KR20160040916A KR 20160040916 A KR20160040916 A KR 20160040916A KR 1020140134446 A KR1020140134446 A KR 1020140134446A KR 20140134446 A KR20140134446 A KR 20140134446A KR 20160040916 A KR20160040916 A KR 20160040916A
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KR
South Korea
Prior art keywords
rake
apron
conveyor
main screen
endless chain
Prior art date
Application number
KR1020140134446A
Other languages
Korean (ko)
Inventor
황명회
Original Assignee
황명회
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 황명회 filed Critical 황명회
Priority to KR1020140134446A priority Critical patent/KR20160040916A/en
Publication of KR20160040916A publication Critical patent/KR20160040916A/en

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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B5/00—Artificial water canals, e.g. irrigation canals
    • E02B5/08—Details, e.g. gates, screens

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vibration damper equipped with an improved rake. The present invention relates to a vibration damper equipped with an improved rake, It is possible to prevent a part of the contaminant conveyed by the rake from the upper end of the apron from being discharged to the outside of the conveyor when the rake moves from the upper end of the apron to the rear side of the conveyor, The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a method and apparatus for stably guiding from a top end of an apron to a conveyor side.
The vibration damper provided with the improved rake according to the present invention comprises a frame installed on both side walls of the water channel, a guide rail installed inside the frame, and a filter installed between the guide rails to filter out contaminants A plurality of electric potential screens installed at a lower front end of the main screen for filtering contaminants passing between the main screen and the bottom surface of the water channel, An endless chain for continuously rotating the rake provided on the both side guide rails, a sprocket rotatably engaged with the endless chain, and a sprocket for rotating the sprocket, A driving motor for transmitting driving force And a conveyor for collecting and transporting the dirt off the rear of the apron in one direction so that the rake is transported downward along the guide rail to the rear of the apron, The rake is provided with a plurality of main screen-side openings, so as to be guided obliquely to the side of the conveyor, while the rake passes over the upper end of the apron, The rear end ridge portion, which is circulated in one direction by the endless chain, is bent upward at a predetermined angle.

Description

[0001] Dust removing machine with improved rake [0002]

[0001] The present invention relates to a vibration damper equipped with an improved rake, and more particularly to a vibration damper equipped with an improved rake, It is possible to prevent a part of the contaminant conveyed by the rake from the upper end of the apron from being discharged to the outside of the conveyor when the rake moves from the upper end of the apron to the rear side of the conveyor, And more particularly, to a vibration damper equipped with an improved rake capable of stably guiding from the upper end of the apron to the conveyor side to significantly increase the collection rate of the impurities through the conveyor.

Generally, the damper is installed in a repair channel such as a drainage pumping station, a water supply depot, a related water supply channel, a sewage disposal plant, and a dam, which is lower than the water surface, To the main screen and then to collect the contaminants.

FIG. 1 is a perspective view showing a prior art vibration damper, FIG. 2 is a side view showing the vibration damper according to the prior art, and FIG. 3 is a side view of the vibration damper according to the prior art, Fig. 5 is a side view of the main part for showing a state of being guided to the side.

1 to 3, the conventional vibration damper 10 includes a frame 12, a guide rail 14, a main screen 16, a dislocation screen 18, a rake 20, aprons 22, an endless chain 24, a drive device 26, and a conveyor 28.

Here, the frame 12 is installed on a water wall surface of a drainage pumping station, a water supply water intake, a water supply pipe, a sewerage treatment plant, a dam, and the like, which are lower than the water surface, and the guide rail 14 is disposed inside the frame 12 Respectively.

At this time, the main screen 16 is installed between the guide rails 14, and in particular, a plurality of horizontally arranged screens are installed in order to filter out the contaminants that are separated along with the water stream.

The disposable screen 18 is installed at a lower front end of the main screen 16 in order to filter contaminants passing between the main screen 16 and the bottom surface of the disposable screen 18, And the contaminants caught on the main screen 16 are moved upward.

The apron 22 is disposed on the upper portion of the main screen 16 to guide the raked rake 20 rearward to collect contaminants and the endless chain 24 is mounted on both side guide rails 14, So that the rake 20 is continuously rotated and circulated and transported in one direction.

At this time, the endless chain 24 is rotated by the driving device 26, and the conveyor 28 collects the clogged objects that have fallen behind the apron 22.

The vibration damper 10 according to the related art having the above-described structure operates the drive unit 26 to rotate the endless chain 24 guided by the guide rails 14, 24 are guided along the main screen 16 to filter off any clogging that may have lodged in the main screen 16.

The rake 20 is then guided rearward along the apron 22 and is moved downward along the guide rail 14 at the rear of the apron 22 to drop the contaminants, And is collected by a conveyor 28.

At this time, the rake 20 is formed in a rake shape and is provided in a flat type. When the rake 20 is moved backward from the upper end of the apron 22, the rake 20 is guided vertically downward from the upper end of the apron 22 and falls to the conveyor 28 side (See Fig. 3)

The driving device 26 for operating the conventional vibration damper 10 constructed as described above includes a drive motor 26 having a rotational force for smoothly rotating the endless chain 24 and the rake 20 to filter out contaminants And a sprocket 26b connected to the rotation axis of the drive motor 26a and engaged with the endless chain 24. [

Here, the rake 20 is transported upward by the endless chain 24 via the electric potential screen 18 and the main screen 16.

The rear end of the rake 20 is spaced apart from the surface of the apron 22 by a predetermined distance so as to transfer the contaminant in the upward transport direction. When the upper end of the apron 22 is positioned at the upper end of the apron 22, The rake 20 is transported downward along the guide rail 14 to the rear of the apron 22 and the impurities are dropped and collected through the conveyor 28. [

That is, the rake 20 is transported downward, and the impurities are dropped and placed on the conveyor 28. Thus, the impurities seated on the conveyor 28 are waiting on the end side of the conveyor 28 To the cargo bay of the truck.

Accordingly, the impurities collected in the cargo compartment of the truck are carried by the truck and transported to the final processing site, through which the contamination can be processed.

However, the vibration damper 10 according to the related art as described above is vertically descended at the upper end of the apron 22 when the rake 20 is provided simply as a flat plate type and moves backward from the top of the apron 22, There is a problem that a part of the contaminants conveyed by the rake 20 from the upper end of the apron 22 is discharged to the outside of the conveyor 28.

Further, as described above, a part of the scum is discharged to the outside of the conveyor 28, and there is a problem that the collection rate collected through the conveyor 28 to the entire contaminant conveyed by the rake 20 is lowered.

Therefore, by improving the structure of the rake, it is possible to prevent a part of the contaminant conveyed by the rake from the upper end of the apron when the rake is moved from the top of the apron back to the outside of the conveyor, It is necessary to research and develop a vibration damper equipped with an improved rake capable of stably guiding from the upper end of the apron to the conveyor side to significantly increase the collection rate of the impurities through the conveyor.

Korea Registered Utility Model No. 175037 Registered on Jan. 2, 2000

According to an aspect of the present invention, there is provided a rear rake portion of a rake which is circulated in one direction by an endless chain via a space between a plurality of main screens installed at regular intervals in a horizontal direction, It is an object of the present invention to provide a vibration damper equipped with an improved rake capable of preventing a part of a contaminant conveyed from a top of an apron by a rake from being discharged to the outside of the conveyor when rake is moved rearward from the top of the apron .

According to another aspect of the present invention, there is provided a rear rake portion of a rake which is circulated in one direction by an endless chain through a space between a plurality of main screens arranged at regular intervals in a horizontal direction, It is possible to stably guide the entire impurity conveyed by the rake from the upper end of the apron to the conveyor side by preventing the part of the contaminant conveyed by the rake from being discharged to the outside of the conveyor from the upper end of the apron when the rak passes from the top of the apron to the rear side, And to significantly increase the collection rate of the contaminants.

Further, according to the present invention, by bending the front rake portion of the rake which is circulated in one direction by the endless chain through the space between the main screens installed at a predetermined interval in the horizontal direction by a plurality of the rails, It is possible to prevent the impurities conveyed from the dislocation screen from circulating toward the main screen and the apron from being deviated to the outside of the shearing unit and to form the shearing unit in a cylindrical shape The present invention is intended to stably prevent a hollow hollow material, which is hollow hollow, from being dislocated outside the shear rake portion.

The present invention for achieving the above-mentioned objects is as follows. That is, the vibration damper equipped with the improved rake according to the present invention includes a frame installed on both side walls of a water channel, a guide rail installed inside the frame, and a guide rail installed between the guide rails to filter out contaminants A plurality of potential screens installed at a lower front end of the main screen for filtering contaminants passing between the main screen and the bottom surface of the water channel, rake for moving the contaminants screened on the main screen in one direction, An endless chain for continuously rotating the rake provided on the both side guide rails, a sprocket rotatably engaged with the endless chain, and a driving force transmitting portion for transmitting driving force to the rotary shaft of the sprocket A driving device composed of a driving motor And a conveyor for collecting and transporting contaminants that have fallen to the rear of the apron in one direction, wherein the rake is transported downward along the guide rails to the rear of the apron, Wherein the rake passes through a plurality of the spaces between the main screens so as to be able to be guided obliquely to the side of the conveyor while passing over the upper end of the apron, And a trailing edge portion that is circulated in one direction by the endless chain is bent upward at a predetermined angle inclination.

Preferably, the rear rake portion of the rake is bent at a predetermined angle within a range of an acute angle so that the rear rake portion of the rake is bent upward at a predetermined angle and is circulated in one direction through a plurality of spaces between the main screens.

The rear rake is formed by bending the rear rake portion upward at a predetermined angle so as to circulate the dislocation screen and the contaminant caught on the main screen by the endless chain in one direction while circulating from the dislocation screen toward the main screen and the apron It is preferred that the shearing rake portion is bent upward at an angle with a certain angle so as to prevent debris conveyed when the shearing force is separated from the shearing rake portion corresponding to the rear rake portion in the front-rear direction.

At this time, the shear rake portion of the rake is bent upward at an angle of a certain angle, and may be bent upward at an angle with respect to a predetermined length backward from the front end.

Further, the shearing rake portion of the rake may be bent upwards at a predetermined angle inclined upwards from a front end thereof so as to prevent a hollow cylindrical contaminant such as a PET bottle from being deviated to the outside, but rounded upwardly.

The effect of the improved rake equipped damper according to the present invention is as follows.

First, the rake is bent at a predetermined angle with respect to the rear rake portion of the rake, which is circulated in one direction by the endless chain, through a space between the main screens installed at a predetermined interval in the horizontal direction, It is possible to prevent a part of the impurities conveyed from the upper end of the apron from being conveyed by the rake to the outside of the conveyor.

Secondly, the rear rake portion of the rake, which is circulated in one direction by the endless chain, passes through the space between the main screens installed at a predetermined interval in the horizontal direction, and is bent at a predetermined angle with respect to the rear rake portion. A portion of the impurities conveyed by the rake from the upper end of the apron is prevented from being discharged to the outside of the conveyor, thereby stably guiding the entire contaminant conveyed by the rake from the apron upper end to the conveyor side to significantly increase the collection rate of impurities through the conveyor .

Third, by bending the shear rake portion of the rake which is circulated in one direction by the endless chain through the space between the main screens installed at a predetermined interval in the horizontal direction, It is possible to prevent the debris conveyed when circulating toward the apron from being deviated to the outside of the shear rake portion and to form a rounded upwardly bent portion with respect to a certain length from the front end of the shear rake portion, It is possible to reliably prevent the debris of the light material from falling out of the shear rake portion.

FIG. 1 is a perspective view showing a prior art vibration damper. FIG.
FIG. 2 is a side view showing a prior art damper. FIG.
3 is a side view of the main part of the vibration damper according to the related art, showing a state in which the dam is guided to the conveyor side while the rake is rotated at the apron end.
4 is a perspective view showing a vibration damper provided with an improved rake according to the present invention.
5 is a side view showing a vibration damper provided with an improved rake according to the present invention;
FIG. 6 is a side view of a principal portion of a vibration damper provided with an improved rake according to the present invention, for showing a state in which the raking is guided to the conveyor side while the rake is rotated at the apron end.
FIG. 7 is a view showing a main part of a vibration damper equipped with an improved rake according to the present invention.
FIG. 8 is a perspective view showing a main part of a vibration damper equipped with an improved rake according to another embodiment of the present invention, showing a mounting state of the rake. FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of an improved rake equipped vibration damper according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 4 is a perspective view showing a vibration damper equipped with an improved rake according to the present invention, FIG. 5 is a side view showing a vibration damper equipped with an improved rake according to the present invention, FIG. FIG. 7 is a side view of a vibration damper provided with a rake, in which the rake is rotated at the apron end to guide the impurities to the conveyor side, and FIG. 7 is a side view of the rake of the vibration damper equipped with the improved rake according to the present invention. Fig. 8 is a schematic view showing the installation of the lumbar strap. Fig.

4 to 7, the vibration damper 100 with improved rake according to the preferred embodiment of the present invention includes a frame 110, a guide rail 120, a main screen 130, a potential screen 140, A rake 150, an apron 160, an endless chain 170, a driving device 180, and a conveyor 190.

Here, the frame 110 is installed on both side walls of the channel, and the guide rail 120 is installed inside the frame 110.

The main screen 130 includes a plurality of main screens 130 installed between the guide rails 120. The main screen 130 can filter the contaminants that flow along with the water stream.

The dislocation screen 140 is disposed at a lower front end of the main screen 130 to filter contaminants passing between the main screen 130 and the bottom surface of the water channel. Respectively.

The rake 150 conveys the contaminants filtered by the dislocation screen 140 and the main screen 130 in one direction and the apron 160 guides the raked rake 150 to the rear And is provided on the upper portion of the main screen 130 for collecting contaminants.

The endless chain 170 is installed on the both side guide rails 120 to continuously rotate the rake 150 and is installed on both side guide rails 120.

The driving unit 180 includes a sprocket 185 that rotates in conjunction with the endless chain 170 and a driving motor 181 that transmits a driving force to the rotating shaft of the sprocket 185.

In addition, the conveyor 190 is for collecting and transporting the clogged material that has fallen backward to the apron 160 in one direction, and is provided at both sides of the conveyor 190 so that the clogged material, which is conveyed on the conveyor 190, It is preferable that the side wall (not shown) is installed and fixed with a predetermined height.

The improved rake-equipped vibration damper 100 according to the present invention having the above-described structure is particularly designed to prevent the rake 150 from being installed in the rear of the apron 160, The rake 150 is transported downward and is vertically downwardly moved downward while being guided at a predetermined angle to the conveyor 190 side.

The rake 150 is disposed at a predetermined distance from the upper surface of the apron 160 through the space between the plurality of main screens 130 so that the upper surface of the apron 160 can be inclined toward the conveyor 190. [ The rear end rake 151, which is circulated in one direction by the endless chain 170, is bent upward at a predetermined angle inclination.

At this time, the rear rake unit 151 of the rake 150 is bent at an upward angle with a predetermined angle so that it can circulate in one direction through a space between the plurality of main screens 130, It is preferable to form upward bending with an angle within a predetermined range.

Further, it is more preferable that the rear rake unit 151 is bent at an angle within a range of an acute angle, and is selectively upwardly bent at an angle within a range of 30 to 75 degrees.

FIG. 8 is a perspective view showing the installation state of a rake in a vibration damper equipped with an improved rake according to another embodiment of the present invention; FIG.

8, the rear rake portion 151 of the rake 150 is bent upward and the front rake portion 155 of the rake 150 is formed, 4 to 7 will be described with reference to FIGS. 4 to 7, and detailed description of the components having the same reference numerals will be omitted.

In the vibration damper of the present invention, the rake 150 is formed by bending the rear rake portion 151 upward at an angle with a predetermined angle so that the rear rake portion 151 is bent by the endless chain 170, The contaminants conveyed from the dislocation screen 140 toward the main screen 130 and the apron 160 are transferred to the rear end raker 151 through the rear screen 150, And the front-end rake unit 155 is bent upward at a predetermined angle to prevent it from being separated from the front-end rake unit 155 corresponding to the front-rear direction.

At this time, the front-end rake unit 155 of the rake 150 is bent upward at a certain angle, and is bent upward at a predetermined angle with respect to a predetermined length from the front end.

Further, although not shown in the drawing, the front-end rake unit 155 of the rake 150 is bent upward at a predetermined angle from the front end to a predetermined length so as to prevent a hollow hollow, such as a PET bottle, And may be upwardly bent.

According to the embodiments of the vibration damper equipped with the improved rake according to the present invention as described above, it is possible to prevent vibration of the endless chain 170 by passing through the space between the main screens 130, The rake 150 is bent at a predetermined angle with respect to the rear rake portion 151 of the rake 150 circulated in the one direction by the rake 150. When the rake 150 is moved backward from the top of the apron 160, It is possible to prevent a part of the impurities conveyed by the conveyor 190 from being discharged to the outside of the conveyor 190.

The rear rake portion 151 of the rake 150 circulated in one direction by the endless chain 170 passes through a space between the main screen 130 installed at a predetermined interval in the horizontal direction, A part of the contaminant conveyed by the rake 150 from the upper end of the apron 160 when the rake 150 is moved rearward from the upper end of the apron 160 is prevented from being released to the outside of the conveyor 190 The contaminants transported by the rake 150 can be stably guided from the upper end of the apron 160 toward the conveyor 190 to significantly increase the collection rate of the contaminants through the conveyor 190. [

The rake 150 of the rake 150 circulated in one direction by the endless chain 170 while passing through the space between the main screen 130 installed at a predetermined interval in the horizontal direction It is possible to prevent the impurities conveyed from the dislocation screen 140 toward the main screen 130 and the apron 160 from being released to the outside of the front end rake unit 155 by forming the upward inclined angle, By bending upwardly from a front end of the rake portion 155 to a predetermined length, it is possible to stably and reliably remove a hollow, lightweight material such as a cylindrical bottle, such as a PET bottle, .

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, the invention is not limited thereto. Various modifications may be made by those skilled in the art. Are included in the scope of the present invention.

100:
110: frame 120: guide rail
130: Main screen 140: Dislocation screen
150: Lake
151: rear-end raker 155:
160: Apron 170: Endless chain
180: drive device 181: drive motor
185: Sprocket 190: Conveyor

Claims (5)

A frame 110 installed on both side walls of the water channel, a guide rail 120 installed inside the frame 110, and a plurality of guide rails 120 installed between the guide rails 120 for filtering contaminants, A plurality of potential screens 140 disposed at a lower front end of the main screen 130 to filter contaminants passing between the main screen 130 and the bottom surface of the water channel, A rake 150 for transporting the impurities filtered on the main screen 130 in one direction, an apron 160 for guiding the raked rake 150 rearward to collect impurities, An endless chain 170 for continuously rotating the rake 150, a sprocket 185 rotating in conjunction with the endless chain 170, and a driving motor 181 for transmitting driving force to the rotary shaft of the sprocket 185. [ And a conveyor 190 for collecting and transporting the contaminants separated toward the rear of the apron 160 in one direction so as to guide the guide rail 120 to the rear of the apron 160. [ The rake (100) is provided with an improved rake to guide the rake (150) downward while vertically downwardly descending the obstacles to be dropped while being inclined at a predetermined angle to the conveyor (190) side,
The rake 150 is connected to the endless chain 160 via a space between the plurality of main screens 130 so that the upper portion of the apron 160 can be guided obliquely to the conveyor 190 side, Wherein the rear rake portion (151) is bent upward at an angle with a predetermined angle.
The method according to claim 1,
The rear rake portion 151 of the rake 150 is bent upward at an angle of a predetermined angle so as to be circulated in one direction through a space between the plurality of main screens 130,
And is bent at an angle within a range of an acute angle.
3. The method according to claim 1 or 2,
The rake 150 is formed by bending the rear rake unit 151 upward at a predetermined angle and circulating the contaminants caught by the electric potential screen 140 and the main screen 130 by the endless chain 170 in one direction The contaminants conveyed from the dislocation screen 140 toward the main screen 130 and the apron 160 are conveyed to the outside of the front runners 155 corresponding to the front and rear runners 151 In order to prevent separation,
Wherein the shear rake section (155) is bent upward at a predetermined angle.
The method of claim 3,
The rake (155) of the rake (150) is bent upward at a certain angle,
Wherein the bending portion is bent upward at a predetermined angle inclined upward with respect to a backward-directed constant length from the leading end.
The method of claim 3,
The rake section 155 of the rake 150 is formed so as to prevent a hollow hollow object, such as a PET bottle,
Wherein the bending portion is bent upwards at an angle upward upward at a predetermined angle with respect to a predetermined length of a backward direction from the leading end.
KR1020140134446A 2014-10-06 2014-10-06 Dust removing machine with improved rake KR20160040916A (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
KR1020140134446A KR20160040916A (en) 2014-10-06 2014-10-06 Dust removing machine with improved rake

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KR1020140134446A KR20160040916A (en) 2014-10-06 2014-10-06 Dust removing machine with improved rake

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109258613A (en) * 2018-10-29 2019-01-25 南县伟业机械制造有限公司 A kind of underwater weed-cutting launch
KR102285379B1 (en) * 2021-04-27 2021-08-04 큰나라찬사회적협동조합 Floating waste removal apparatus for floating waste and grit collection
KR102313050B1 (en) * 2021-07-16 2021-10-14 장갑석 Dust seperator with a folding front screen
KR102332351B1 (en) * 2021-07-27 2021-12-01 주식회사 신정기공 Rake stopper device of vibration damper
KR102341047B1 (en) * 2021-07-30 2021-12-20 (주)디케이엠엔이 Pin assembly type chain structure for trash removing apparatus
KR102342346B1 (en) * 2021-04-27 2021-12-22 주식회사 연성 Rotary Type Dust Removing Machine with Multi-path
KR102363813B1 (en) * 2021-07-07 2022-02-16 홍의환 Rotary type scraper
KR102371002B1 (en) * 2021-08-24 2022-03-04 장갑석 A screen with a rake structure that increases the efficiency of removing impurities
KR102384955B1 (en) * 2021-07-23 2022-04-08 주식회사 에코셋 Rotary type screener machine
KR102414265B1 (en) * 2021-05-21 2022-06-27 정명숙 Screen with sewage guided flow plate
KR102415893B1 (en) * 2021-08-23 2022-07-06 주식회사 대승엔지니어링 Fixed screen for cascaded filter with gap maintenance function and cascaded filter comprising the same
KR20220132834A (en) * 2021-03-24 2022-10-04 주식회사 한성환경기연 Adulteration for removing fine screen device for waste removal
KR20220163103A (en) * 2021-06-02 2022-12-09 대한민국(해양경찰청 해양경찰연구센터장) conveyor-type absorbent material recovery device

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109258613A (en) * 2018-10-29 2019-01-25 南县伟业机械制造有限公司 A kind of underwater weed-cutting launch
KR20220132834A (en) * 2021-03-24 2022-10-04 주식회사 한성환경기연 Adulteration for removing fine screen device for waste removal
KR102285379B1 (en) * 2021-04-27 2021-08-04 큰나라찬사회적협동조합 Floating waste removal apparatus for floating waste and grit collection
KR102342346B1 (en) * 2021-04-27 2021-12-22 주식회사 연성 Rotary Type Dust Removing Machine with Multi-path
KR102414265B1 (en) * 2021-05-21 2022-06-27 정명숙 Screen with sewage guided flow plate
KR20220163103A (en) * 2021-06-02 2022-12-09 대한민국(해양경찰청 해양경찰연구센터장) conveyor-type absorbent material recovery device
KR102363813B1 (en) * 2021-07-07 2022-02-16 홍의환 Rotary type scraper
KR102313050B1 (en) * 2021-07-16 2021-10-14 장갑석 Dust seperator with a folding front screen
KR102384955B1 (en) * 2021-07-23 2022-04-08 주식회사 에코셋 Rotary type screener machine
KR102332351B1 (en) * 2021-07-27 2021-12-01 주식회사 신정기공 Rake stopper device of vibration damper
KR102341047B1 (en) * 2021-07-30 2021-12-20 (주)디케이엠엔이 Pin assembly type chain structure for trash removing apparatus
KR102415893B1 (en) * 2021-08-23 2022-07-06 주식회사 대승엔지니어링 Fixed screen for cascaded filter with gap maintenance function and cascaded filter comprising the same
KR102371002B1 (en) * 2021-08-24 2022-03-04 장갑석 A screen with a rake structure that increases the efficiency of removing impurities

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