KR100467420B1 - Separator for extraneous substance of waste matter - Google Patents
Separator for extraneous substance of waste matter Download PDFInfo
- Publication number
- KR100467420B1 KR100467420B1 KR10-2001-0053093A KR20010053093A KR100467420B1 KR 100467420 B1 KR100467420 B1 KR 100467420B1 KR 20010053093 A KR20010053093 A KR 20010053093A KR 100467420 B1 KR100467420 B1 KR 100467420B1
- Authority
- KR
- South Korea
- Prior art keywords
- tank
- waste
- foreign matter
- sludge
- discharge
- Prior art date
Links
- 239000002699 waste material Substances 0.000 title claims abstract description 49
- 239000000126 substance Substances 0.000 title description 3
- 239000010802 sludge Substances 0.000 claims abstract description 25
- 238000010276 construction Methods 0.000 claims abstract description 16
- 238000000926 separation method Methods 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 7
- 238000011084 recovery Methods 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 31
- 238000013019 agitation Methods 0.000 claims 1
- 238000001914 filtration Methods 0.000 claims 1
- 238000012216 screening Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 7
- 238000003756 stirring Methods 0.000 abstract description 6
- 238000004064 recycling Methods 0.000 abstract description 4
- 239000002023 wood Substances 0.000 abstract description 4
- 239000010426 asphalt Substances 0.000 abstract description 3
- 239000000843 powder Substances 0.000 abstract description 3
- 239000002689 soil Substances 0.000 abstract description 2
- 239000004576 sand Substances 0.000 description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 2
- 229920002554 vinyl polymer Polymers 0.000 description 2
- 230000006378 damage Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B9/00—Combinations of apparatus for screening or sifting or for separating solids from solids using gas currents; General arrangement of plant, e.g. flow sheets
- B07B9/02—Combinations of similar or different apparatus for separating solids from solids using gas currents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B4/00—Separating by pneumatic tables or by pneumatic jigs
- B03B4/04—Separating by pneumatic tables or by pneumatic jigs using rotary tables or tables formed by travelling belts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B13/00—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices
- B07B13/14—Details or accessories
- B07B13/16—Feed or discharge arrangements
Landscapes
- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
본 발명은 재건축 건설현장에서 발생되는 건설 폐기물 즉 콘크리트, 철근, 폐목재, 토사, 아스팔트 등이 혼합되어 있는 재건축 폐기물을 현장에서 재활용할 수 있도록 일정한 크기로 파쇄·선별된 폐기물 중에 포함된 이물질을 자동 분리하는 이물질 분리장치에 관한 것으로, 그 목적은 폐기물 중에 포함된 이물질 및 미분을 자동 분리하여 양질의 재생골재를 생산할 수 있게 함으로서 폐기물의 재활용 가치를 높일 수 있으며, 건식, 습식 모두 사용 가능한 이물질 분리장치를 제공함에 있다.The present invention is to automatically recycle the foreign matter contained in the waste shredded and selected to a certain size so that the construction waste generated in the reconstruction construction site, that is, the reconstruction waste mixed with concrete, rebar, waste wood, soil, asphalt, etc. can be recycled on site The present invention relates to a foreign matter separating device that separates foreign matter and fine powder contained in the waste, thereby producing high-quality recycled aggregates, thereby improving the recycling value of the waste, and using both dry and wet foreign matter separating devices. In providing.
본 발명은 건설 폐기물 재활용 처리장치 중 이물질을 분리하기 위한 이물질 분리장치에 있어서, 선행공정에서 파쇄·선별된 폐기물이 투입되는 수조탱크와, 상기 수조탱크로부터 소정각도 경사지게 설치되어 폐기물을 배출하는 배출컨베이어와, 상기 수조탱크 하부에 설치된 송풍기와 에어덕트에 의해 연결되는 에어노즐로 구성된 건설 폐기물 이물질 분리장치와, 상기 배출컨베이어의 배출측 하단에 설치되는 진동 스러지스크린과, 상기 진동 스러지스크린 하단에 설치되는 스러지회수함 및 스러지 배출스크류와, 상기 수조탱크의 일측 끝단 외측에 설치되는 시이브 스크린과, 상기 시이브 스크린의 상단부에 설치되는 회전 스프링바와, 상기 시이브 스크린쪽으로 향하도록 수조탱크 내측에 설치되는 교반노즐을 포함하여 구성함으로서 건식, 습식 모두 사용 가능한 건설 폐기물 이물질 분리장치로 구성되었다.The present invention is a foreign matter separation device for separating the foreign matter in the construction waste recycling apparatus, the tank tank to which the waste crushed and selected in the preceding process, and the discharge conveyor installed inclined at a predetermined angle from the tank tank to discharge the waste And, a construction waste foreign material separating device consisting of an air nozzle connected by a blower and an air duct installed under the tank tank, a vibration sludge screen installed at the bottom of the discharge side of the discharge conveyor, and a bottom of the vibration sludge screen. Installed sludge recovery and sludge discharge screw, the sieve screen is installed on the outside of one end of the tank tank, the rotary spring bar is installed on the upper end of the sieve screen, the tank tank facing toward the sieve screen Dry and wet hair by including a stirring nozzle installed in It consists of two usable construction waste debris separators.
Description
본 발명은 재건축 건설현장에서 발생되는 건설 폐기물 즉 콘크리트, 철근, 폐목재, 토사, 아스팔트 등이 혼합되어 있는 재건축 폐기물을 현장에서 재활용할 수 있도록 일정한 크기로 파쇄·선별된 폐기물 중에 포함된 이물질을 자동 분리하는 이물질 분리장치에 관한 것으로, 보다 상세하게는 선행공정에 의해 파쇄·선별된 폐기물 중 가벼운 이물질은 송풍기와 에어노즐, 에어덕트을 이용하여 이물질을 분리하는 건설 폐기물 이물질 분리장치와, 상기 이물질 분리장치에 진동 스러지스크린, 스러지 회수함, 스러지 배출스크류, 시이브 스크린, 회전 스프링바, 교반노즐을 추가 설치한 것으로 구성되어, 상기 수조탱크에 물을 채우고, 폐기물을 수중에 투입하여 이물질을 분리하도록 구성된 건설 폐기물 이물질 분리장치에 관한 것이다.The present invention is to automatically recycle the foreign matter contained in the waste shredded and selected to a certain size so that the construction waste generated in the reconstruction construction site, that is, the reconstruction waste mixed with concrete, rebar, waste wood, soil, asphalt, etc. can be recycled on site The present invention relates to a foreign matter separating device for separating, and more particularly, a light foreign material among wastes that have been crushed and selected by a preceding process includes a construction waste foreign material separating device for separating foreign materials using a blower, an air nozzle, and an air duct, and the foreign material separating device. Vibration sludge screen, sludge recovery box, sludge discharge screw, sieve screen, rotary spring bar, and stirring nozzles are additionally installed, filling the tank with water, and putting waste into water to remove foreign substances. A construction waste foreign matter separation device configured to separate.
일반적으로 재건축현장에서 발생되는 철거된 폐기물은 콘크리트, 철근, 폐목재, 토사, 아스팔트, 암석, 토사, 합성수지, 지류 및 비닐류의 다양한 혼합물로 구성되어 분리,선별의 문제로 인하여 건설 폐기물을 매립 처리장에 폐기시켜 재활용이 가능한 자원을 낭비하고, 또한 폐기물의 매립으로 인해 자연환경을 파괴할 뿐만아니라 매립지의 확보에도 어려움이 있었다. 이러한 문제로 인해 폐기물 중에 이물질을 분리하기 위한 장치들이 제시되고 있으나 양질을 재생골재를 생산하기에는 미흡한 실정이다.In general, the demolition waste generated at the reconstruction site consists of various mixtures of concrete, rebar, waste wood, earth and sand, asphalt, rock, earth and sand, synthetic resin, tributary, and vinyls. In addition, waste resources that can be recycled by waste are not only destroyed, but also the landfill has not only destroyed the natural environment but also has difficulty in securing landfills. Due to these problems, devices for separating foreign matter from waste have been proposed, but are insufficient to produce high-quality recycled aggregates.
본 발명은 상기와 같은 종래의 문제점을 해결하기 위하여 안출되는 것으로, 그 목적은 폐기물 중에 포함된 이물질 및 미분을 자동 분리하여 양질의 재생골재를 생산할 수 있게 함으로서 폐기물의 재활용 가치를 높일 수 있으며, 건식, 습식 모두 사용 가능한 이물질 분리장치를 제공함에 있다.The present invention is devised to solve the conventional problems as described above, its purpose is to automatically separate the foreign matter and fine powder contained in the waste to produce high-quality recycled aggregates to increase the recycling value of the waste, dry In addition, the present invention provides a foreign matter separation device that can be used both wet and wet.
상기와 같은 목적 달성을 위한 본 발명은 폐기물이 투입되는 수조탱크의 측면부에 송풍기와 연결되는 에어노즐을 설치하여 송풍기의 풍압에 의해 폐기물 중의 가벼운 이물질을 분리하고, 잔류된 이물질을 진동 스러지스크린에서 분리하도록 구성되며, 상기 수조탱크의 일측에 시이브 스크린을 설치하고, 그 상단에 회전 스프링바를 설치하며, 수조탱크 내측에 교반노즐을 설치하여 건식, 습식 모두 사용 가능하도록 구성되었다.The present invention for achieving the above object is to install an air nozzle connected to the blower on the side of the tank tank in which the waste is injected to separate the light foreign matter in the waste by the wind pressure of the blower, the remaining foreign matter in the vibration sludge screen It is configured to separate, install a sieve screen on one side of the tank tank, install a rotary spring bar on the upper end, and installed a stirring nozzle inside the tank tank was configured to be used both dry and wet.
도 1 은 본 발명의 건식 이물질 분리장치의 구성을 나타낸 정면도1 is a front view showing the configuration of the dry foreign matter separating apparatus of the present invention
도 2 는 본 발명의 건식 이물질 분리장치의 구성을 나타낸 평면도Figure 2 is a plan view showing the configuration of the dry foreign matter separating apparatus of the present invention
도 3 은 본 발명의 습식 이물질 분리장치의 구성을 나타낸 정면도Figure 3 is a front view showing the configuration of the wet foreign matter separating apparatus of the present invention
도 4 는 본 발명의 습식 이물질 분리장치의 구성을 나타낸 평면도Figure 4 is a plan view showing the configuration of the wet foreign matter separating apparatus of the present invention
<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>
(1) : 수조탱크 (2) : 배출컨베이어(1): Water tank (2): Discharge conveyor
(3) : 시이브 스크린 (4) : 회전 스프링바(3): sieve screen (4): rotating spring bar
(5) : 진동 스러지스크린 (6) : 송풍기(5): vibrating sludge screen (6): blower
(7) : 스러지 배출스크류 (8) : 교반노즐(7): Sludge discharge screw (8): Stirring nozzle
(9) : 스러지 회수함 (10): 에어노즐(9): Sludge Recovery (10): Air Nozzle
(11) : 에어덕트(11): air duct
본 발명의 구성에 대해 첨부도면과 연계하여 설명하면 다음과 같다.도 1 은 본 발명의 건식 이물질 분리장치의 구성을 나타낸 정면도를, 도 2 는 본 발명의 건식 이물질 분리장치의 구성을 나타낸 평면도를, 도 3 은 본 발명의 습식 이물질 분리장치의 구성을 나타낸 정면도를, 도 4 는 본 발명의 습식 이물질 분리장치의 구성을 나타낸 평면도를 도시한 것으로, 본 발명은 건설 폐기물 재활용 처리장치 중 이물질을 분리하기 위한 이물질 분리장치에 있어서, 선행공정에서 파쇄·선별된 폐기물이 투입되는 수조탱크(1)와, 상기 수조탱크(1)로부터 소정각도 경사지게 설치되어 폐기물을 배출하는 배출컨베이어(2)와, 상기 수조탱크(1) 하단부에 설치된 송풍기(6)와 에어덕트(11)에 의해 연결되는 에어노즐(10)이 수조탱크(1)의 측면부에 설치되어 구성된 건설 폐기물 이물질 분리장치를 특징으로 한다.The configuration of the present invention will be described in connection with the accompanying drawings as follows. Figure 1 is a front view showing the configuration of the dry foreign matter separating apparatus of the present invention, Figure 2 is a plan view showing the configuration of the dry foreign matter separating apparatus of the present invention. 3 is a front view showing the configuration of the wet foreign matter separating apparatus of the present invention, Figure 4 is a plan view showing the configuration of the wet foreign matter separating apparatus of the present invention, the present invention is to separate the foreign matter in the construction waste recycling apparatus In the foreign matter separation apparatus for discharging, the water tank (1) to which the waste crushed and selected in the preceding step is introduced, the discharge conveyor (2) installed inclined at a predetermined angle from the water tank (1) to discharge the waste, and the The construction waste disposed in which the air nozzle 10 connected by the blower 6 installed at the lower end of the water tank 1 and the air duct 11 is installed at the side of the water tank 1. Characterized by a foreign material separating device.
또한 본 발명은 상기 배출컨베이어(2)의 배출측 하단에 설치되는 진동 스러지스크린(5)과, 상기 진동 스러지스크린(5) 하단에 다단계로 설치되는 스러지회수함(9) 및 스러지 배출스크류(7)와, 상기 수조탱크(1)의 일측 끝단 외측에 설치되는 시이브 스크린(3)과, 상기 시이브 스크린(3)의 상단부에 설치되는 회전 스프링바(4)와, 상기 시이브 스크린(3)쪽으로 향하도록 수조탱크(1) 내측에 설치되는 교반노즐(8)을 포함하여 일체식으로 구성됨으로서 이동 설치가 용이하며, 건식, 습식 모두 사용 가능한 건설 폐기물 이물질 분리장치를 특징으로 한다.In addition, the present invention is a vibration sludge screen 5 is installed on the discharge side lower end of the discharge conveyor (2), the sludge recovery box (9) and the sludge discharge is installed in multiple stages on the bottom of the vibration sludge screen (5) A screw 7, a sieve screen 3 installed outside one end of the water tank 1, a rotary spring bar 4 provided at an upper end of the sieve screen 3, and the sieve Including a stirring nozzle (8) installed inside the water tank (1) to face toward the screen (3) is easy to install and move, it is characterized by a construction waste foreign material separation device that can be used both dry and wet .
상기와 같은 구성을 참조하여 본 발명의 실시예를 설명하면 다음과 같다.Referring to the configuration as described above an embodiment of the present invention.
본 발명은 건식과 습식 모두 사용가능하며, 우선 건식 이물질 분리장치에 대한 실시예를 설명하도록 한다.The present invention can be used both dry and wet, first to explain the embodiment of the dry foreign matter separation device.
수조탱크(1)내로 투입되는 폐기물은 선행공정인 분쇄기와 분리기를 통하여 파쇄·선별되어 수조탱크(1)로 투입된다. 이때 수조탱크(1) 하부에 설치된 송풍기(6)와 에어덕트(11)에 의해 연결된 에어노즐(10)이 수조탱크(1)의 측방향에서 에어를 불어주어 이물질을 분리하게 된다. 즉 종이나 비닐류와 나무등의 이물질은 에어노즐(10)에 풍력에 의해 쓰레기 적재소(도시없음)로 분리배출되고, 수조탱크(1)에 투입된 폐기물은 배출컨베이어(2)에 의해 배출될 때 미처 선별되지 못한 폐기물은 인력으로 재차 선별하는 것이다.Waste introduced into the water tank (1) is crushed and screened through a pulverizer and a separator, which is a preceding process, and is introduced into the water tank (1). At this time, the air nozzle 10 connected by the blower 6 and the air duct 11 installed under the water tank 1 blows air from the side of the water tank 1 to separate foreign substances. That is, when foreign matters such as paper, vinyl, and wood are separated and discharged to the air nozzle 10 by a wind turbine (not shown), and the waste put into the tank tank 1 is discharged by the discharge conveyor 2. Unsorted waste is sorted again by manpower.
또 다른 실시예로서 습식 이물질 분리장치에 대해 설명하면, 선행공정을 거친 폐기물이 수조탱크(1)내로 투입될 때 상술한 바와 같이 송풍기(6)와 에어노즐(10) 및 에어덕트(11)에 의해 1차로 가벼운 이물질을 분리하게 되고, 1차로 이물질이 분리된 건설 폐기물이 수조탱크(1)에 투입되면 침전된 폐기물중에서 선행공정에서 분리되지 않은 이물질은 부유하게 된다. 이때 침전된 재생골재는 배출컨베이어(2)에 의해 수조탱크(1) 밖으로 배출되며, 수중에 부유된 이물질은 수조탱크(1)내에 설치된 교반기 방식의 교반노즐(8)에 의해 물이 배출컨베이어(2)의 타측 방향으로 유동함에 따라 이동하여 회전스프링바(4)에 의해 시이브 스크린(3)으로 배출된다. 또한 물의 유동방향측 수조탱크(1)의 벽면은 수직방향으로 일정각도 기울기를 구비하여 수중에 부유된 이물질이 원활하게 수면으로 떠오르도록 함으로써 회전스프링바(4)에 의해 이물질이 시이브 스크린(3)으로 배출되는 것이다. 이렇게 배출된 이물질에 포함된 물은 시이브 스크린(3)에서 회수되어 수조탱크(1)내로 재투입하게 된다.As another embodiment, a wet foreign matter separating device is described. When the waste that has passed through the preceding process is introduced into the water tank 1, the blower 6, the air nozzle 10, and the air duct 11 as described above. By separating the first light foreign matter by the first, when the construction waste is separated into the first tank tank (1), the foreign matter that is not separated in the preliminary process among the sedimented waste is suspended. At this time, the recycled aggregate precipitated is discharged out of the tank tank (1) by the discharge conveyor (2), the foreign matter suspended in the water is discharged by the agitator type stirring nozzle (8) installed in the tank tank (1) As it flows in the other direction of 2), it moves and is discharged to the sieve screen 3 by the rotary spring bar 4. In addition, the wall surface of the water tank in the flow direction of the water (1) has a predetermined angle in the vertical direction to ensure that foreign matter floating in the water smoothly floats to the water surface by the rotary spring bar (4) sieve screen (3) To be discharged. The water contained in the discharged foreign matter is recovered from the sieve screen (3) and re-introduced into the water tank (1).
반면, 배출컨베이어(2)를 통해 배출된 재생골재는 배출컨베이어(2)의 배출측 하단에 설치된 진동 스러지스크린(5)으로 이동하여 재생골재에 포함된 스러지 및 물은 스러지 회수함(9)으로 회수하여 스러지 회수함(9) 하단에 설치된 스러지 배출 스크류(7)에 의해 스러지는 배출되고 물은 수조탱크(1)에 재투입되며, 양질의 재생골재는 배출하게 되는 것이다.On the other hand, the recycled aggregate discharged through the discharge conveyor (2) is moved to the vibrating sludge screen (5) installed on the discharge side bottom of the discharge conveyor (2) to recover the sludge and water contained in the recycled aggregate ( 9) and the sludge is discharged by the sludge discharge screw (7) installed at the bottom of the sludge recovery box (9) and the water is re-injected into the tank tank (1), and the recycled aggregate of good quality is discharged.
상술한 바와 같이 본 발명은 수조탱크(1)에 물을 채워 습식으로 사용할 수도 있고, 물을 채우지 않고 건식으로도 사용할 수 있으며, 일체식으로 구성되어 이동 설치가 용이한 것이다.As described above, the present invention may be used by filling the water tank 1 with a wet type, or may be used as a dry type without filling the water.
본 발명은 상술한 특정의 바람직한 실시예에 한정되지 아니하며, 청구범위에서 청구하는 본 발명의 요지를 벗어남이 없이 당해 고안이 속하는 기술분야에서 통상의 지식을 가진 자라면 누구든지 다양한 변형실시가 가능한 것은 물론이고, 그와 같은 변경은 청구범위 기재의 범위 내에 있게 된다.The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by those skilled in the art without departing from the gist of the present invention as claimed in the claims. Of course, such changes will fall within the scope of the claims.
상기와 같이 본 발명은 선행공정에서 파쇄·선별된 폐기물을 다단계의 이물질 분리과정을 거쳐 폐기물 중에 포함된 이물질 및 미분을 자동으로 분리토록 구성되어 양질의 재활용 골재를 생산할 수 있으며, 이에 따라 폐기물의 활용가치를 높일 수 있고, 폐기물의 양을 최소화시켜 매립지 확보에 따른 자연환경 파괴를 방지하는 효과가 있는 것이다.As described above, the present invention is configured to automatically separate the foreign matter and fine powder contained in the waste through the multi-stage separation process of the waste shredded and selected in the preceding process to produce high-quality recycled aggregates, thereby utilizing the waste It is possible to increase the value and to minimize the amount of waste to prevent the destruction of the natural environment due to landfills secured.
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| KR100693109B1 (en) | 2006-09-05 | 2007-03-12 | 대명종합환경산업 주식회사 | Foreign substance sorting device for construction waste |
| KR100954203B1 (en) * | 2008-03-25 | 2010-04-21 | 맑은산업주식회사 | Construction Waste Recycling Equipment |
| KR100978087B1 (en) | 2010-03-15 | 2010-08-25 | 티케이멕스 주식회사 | Equipment for separating of impurity content and small gravel using vibration screen of constructional waste materials in recycling system |
| KR101211806B1 (en) | 2012-04-23 | 2012-12-12 | 송수니 | Separator for extraneous substance of construction waste |
| KR101629412B1 (en) | 2015-10-20 | 2016-06-10 | 원성희 | Sand collected and foreign substance for separation classifier |
| KR102236075B1 (en) | 2020-12-24 | 2021-04-05 | 유한회사 청솔산업 | A Waste Selection System |
| KR102325696B1 (en) | 2021-05-28 | 2021-11-12 | 주식회사 에코건설산업 | Construction Waste Separation Selection System |
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| KR100687797B1 (en) * | 2006-11-16 | 2007-02-27 | 이경진 | Device for removing alien substance of recycling sand |
| KR100801590B1 (en) * | 2007-06-11 | 2008-02-05 | 주식회사 신텍 | Fine foreign material separating device and method |
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| KR102325696B1 (en) | 2021-05-28 | 2021-11-12 | 주식회사 에코건설산업 | Construction Waste Separation Selection System |
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| KR20030019778A (en) | 2003-03-07 |
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