KR20210115748A - Sorting method for recycled sand - Google Patents

Sorting method for recycled sand Download PDF

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KR20210115748A
KR20210115748A KR1020200032002A KR20200032002A KR20210115748A KR 20210115748 A KR20210115748 A KR 20210115748A KR 1020200032002 A KR1020200032002 A KR 1020200032002A KR 20200032002 A KR20200032002 A KR 20200032002A KR 20210115748 A KR20210115748 A KR 20210115748A
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sand
mixed aggregate
sorting
fine
water
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KR1020200032002A
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Korean (ko)
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KR102363028B1 (en
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박훈일
박영기
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박훈일
박영기
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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
    • B03B9/00—General arrangement of separating plant, e.g. flow sheets
    • B03B9/06—General arrangement of separating plant, e.g. flow sheets specially adapted for refuse
    • B03B9/061—General arrangement of separating plant, e.g. flow sheets specially adapted for refuse the refuse being industrial
    • B03B9/065—General arrangement of separating plant, e.g. flow sheets specially adapted for refuse the refuse being industrial the refuse being building rubble
    • 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
    • B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
    • B03B5/48—Washing granular, powdered or lumpy materials; Wet separating by mechanical classifiers
    • B03B5/50—Rake classifiers
    • 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
    • B03B7/00—Combinations of wet processes or apparatus with other processes or apparatus, e.g. for dressing ores or garbage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C7/00—Apparatus not provided for in group B04C1/00, B04C3/00, or B04C5/00; Multiple arrangements not provided for in one of the groups B04C1/00, B04C3/00, or B04C5/00; Combinations of apparatus covered by two or more of the groups B04C1/00, B04C3/00, or B04C5/00
    • 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
    • B07B13/04—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices according to size
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
    • F26B17/02—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by belts carrying the materials; with movement performed by belts or elements attached to endless belts or chains propelling the materials over stationary surfaces
    • F26B17/04—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by belts carrying the materials; with movement performed by belts or elements attached to endless belts or chains propelling the materials over stationary surfaces the belts being all horizontal or slightly inclined
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B5/00—Drying solid materials or objects by processes not involving the application of heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B2200/00—Drying processes and machines for solid materials characterised by the specific requirements of the drying good
    • F26B2200/08—Granular materials
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/52—Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Molecular Biology (AREA)
  • Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
  • Combined Means For Separation Of Solids (AREA)

Abstract

The present invention relates to a sorting method for recycled sand, which comprises: a fine sorting step of separating pulverized waste concrete-mixed aggregate by particle size and collecting fine dust to remove foreign substances; a washing step of introducing the mixed aggregate which has passed the fine sorting step into a sludge chamber, and washing the mixed aggregate with water in the sludge chamber to remove soil; a recycled sand sorting step of sorting recycled sand by a scraper from among the mixed aggregate in a mixture state with water by the washing step; a dewatering step of dewatering the sorted recycled sand which is sorted through the recycled sand sorting step by a vibrating screen; a transfer step of transferring the recycled sand which has undergone the dewatering step to a drying chamber by a transfer conveyor; and a drying step of drying the recycled sand which is transferred to the drying chamber. According to the present invention, the waste concrete-mixed aggregate is first sorted by a dry method, fine sand, fine dust, and the like, are collected, washed with the added water and secondarily sorted. Thus, the present invention provides a remarkable effect that the working time is shortened and the productivity and economic efficiency are improved.

Description

재활용 모래 선별 방법 {SORTING METHOD FOR RECYCLED SAND}How to sort recycled sand {SORTING METHOD FOR RECYCLED SAND}

본 발명은 재활용 모래 선별 방법에 관한 것으로, 더욱 상세하게는 폐콘트리트로부터 모래를 선별하기 위한 재활용 모래 선별 방법에 관한 것이다.The present invention relates to a method for sorting recycled sand, and more particularly, to a method for sorting recycled sand for sorting sand from waste concrete.

일반적으로 건설폐기물은 건축물 및 토목공사의 건설구조물의 해체공사 등에서 발생 되며, 특히, 근래에는 도시 개발 계획에 따라 아파트 등의 재건축이 활발히 이루어져 많은 양이 발생 되고 있으며, 이러한 건설폐기물 중 모래와 골재를 선별할 경우 이를 재활용할 수 있다.In general, construction waste is generated in the dismantling work of buildings and civil engineering works. In particular, in recent years, the reconstruction of apartments, etc. has been actively carried out according to the urban development plan, and a large amount is generated. Among these construction wastes, sand and aggregate are If sorted, it can be recycled.

따라서 건설폐기물인 폐콘크리트 덩이를 수집하여 피더를 거치도록 하여 토분을 분리하고, 이를 임팩트 크러셔나 죠 크러셔 등의 파쇄장치를 이용하여 파쇄한 후에 3단 진동스크린에 투입시켜 채거름 방식으로 골재와 모래를 선별하도록 하되 선별되지 못한 덩어리는 다시 파쇄장치로 이동하여 파쇄가 이루어진 후 3단 진동스크린을 통과하도록 함으로써 순환골재인 모래와 골재를 얻을 수 있도록 하고 있다.Therefore, the waste concrete, which is the construction waste, is collected and passed through the feeder to separate the soil powder, crushed using a crushing device such as an impact crusher or a jaw crusher, and then put into a three-stage vibrating screen to collect aggregate and sand. The unsorted lumps are moved to the crusher again and crushed and then passed through a three-stage vibrating screen to obtain sand and aggregate, which are circulating aggregates.

종래기술로서, 대한민국, 등록특허 제10-1037783호에 의하면, 상기 발명은 모래 및 물이 혼합되어 유입구로 유입되는 분급 탱크와, 상기 분급 탱크로 유입된 모래를 고르게 혼합하면서 원주상에 다수 형성된 버켓에 의해 전방으로 회전 이송 공급하는 버켓휠과, 상기 버켓휠에 의해 공급된 모래를 상향 경사로 이송하면서 미세 모래와 물을 하부로 배출하면서 1차 선별 모래를 걸러주는 상향 경사식 탈수장치와, 상기 상향 경사식 탈수장치에서 하부로 배출된 미세모래와 물을 펌프에 의해 공급하여 2,3차 선별 모래를 차례로 걸러주는 1차 사이클론 및, 2차 사이클론을 순차 구성된다고 기재되어 있다.As a prior art, according to Republic of Korea Patent Registration No. 10-1037783, the invention relates to a classification tank in which sand and water are mixed and introduced into the inlet, and a plurality of buckets formed on the circumference while evenly mixing the sand introduced into the classification tank. a bucket wheel for rotationally feeding and supplying the bucket wheel by a It is described that a primary cyclone and a secondary cyclone that sequentially filter the secondary and tertiary sorting sand by supplying the fine sand and water discharged from the inclined dewatering device to the lower part by a pump are sequentially configured.

그러나, 종래와 같은 방법으로 처음부터 물을 사용하여 혼합골재를 세척하면서 재활용 모래를 선별할 시, 작업시간이 오래걸리며, 아주 작은 입자 모래들이 물에 유실되어 슬러지화되고 폐기물 처리되므로 경제적인 손실이 크다는 문제점이 있었다.However, in the case of sorting recycled sand while washing the mixed aggregate using water from the beginning in the same way as in the prior art, it takes a long time to work, and the very small particles of sand are lost in water to become sludge and waste treatment, resulting in economic loss. There was a big problem.

대한민국, 등록특허 제10-1037783호Republic of Korea, Registered Patent No. 10-1037783

본 발명은 이를 해결하고자 안출된 것으로, 건식으로 폐콘크리트가 분쇄된 혼합골재를 크기별로 1차 선별하고, 입자가 고운 미세 모래, 미세 먼지 등을 집진한 뒤, 물을 투입하여 세척하고 크기별로 2차 선별함으로써 작업성이 향상된 재활용 모래 선별 방법을 제공하고자 하는 것이다.The present invention has been devised to solve this problem, in which the mixed aggregate from which the waste concrete is pulverized in a dry method is first selected by size, fine sand, fine dust, etc. An object of the present invention is to provide a recycling sand sorting method with improved workability by screening tea.

본 발명은 재활용 모래 선별 방법에 관한 것으로, 상기 재활용 모래 선별 방법은 분쇄된 폐콘크리트 혼합골재를 입자 크기별로 분리하고, 미세먼지를 집진하여 이물질을 제거하는 미분 선별단계, 상기 미분 선별단계를 통과한 혼합골재가 슬러지 챔버로 유입되고, 상기 슬러지 챔버 내에서 혼합골재가 물에 의해 세척되어 토분이 제거되는 세척단계, 상기 세척단계에 의해 물과 혼합물 상태인 혼합골재 중, 재생 모래가 스크래퍼에 의해 선별되는 재생 모래 선별단계, 상기 재생 모래 선별단계를 거쳐 선별된 재생 모래가 진동스크린에 의해 탈수되는 탈수단계, 상기 탈수단계를 거친 재생 모래가 이송 컨베이어에 의해 건조챔버로 이송되는 이송단계 및 상기 건조챔버로 이송된 재생모래가 건조되는 건조단계를 포함하는 것을 특징으로 한다.The present invention relates to a recycling sand sorting method, wherein the recycling sand sorting method separates crushed waste concrete mixed aggregate by particle size, collects fine dust to remove foreign substances, and passes the fine powder sorting step. A washing step in which the mixed aggregate is introduced into the sludge chamber, the mixed aggregate is washed with water in the sludge chamber to remove soil powder, and the recycled sand is selected by a scraper from the mixed aggregate in a state of being mixed with water by the washing step A dewatering step in which the reclaimed sand selected through the reclaimed sand screening step is dewatered by a vibrating screen, a transfer step in which the reclaimed sand that has passed through the dewatering step is transferred to a drying chamber by a transfer conveyor, and the drying chamber It is characterized in that it includes a drying step in which the regenerated sand transferred to the furnace is dried.

또한, 상기 탈수단계에서 발생된 오수는, 상기 진동스크린의 하부에 배치된 침전조로 유입되고, 상기 침전조 내부의 상등수가 상기 세척단계에서 사용되는 상기 슬러지 챔버로 재순환되는 상등수 순환단계를 거치게 되는 것을 특징으로 한다.In addition, the sewage generated in the dewatering step is introduced into a settling tank disposed under the vibrating screen, and the supernatant water in the settling tank is recycled to the sludge chamber used in the washing step. do it with

또한, 상기 미분 선별단계는, 분쇄된 폐콘트리트 혼합골재가 미분 선별기에 의해 입자 크기별로 분리 되는 입자 크기별 선별단계, 상기 입자 크기별 선별단계를 거친 혼합골재에 포함된 미세먼지가 사이클론에 의해 1차로 집진되는 1차 집진단계, 상기 1차 집진단계를 거친 혼합골재에 포함된 초미세먼지가 집진기에 의해 2차로 집진되는 2차 집진단계를 포함하는 것을 특징으로 한다.In addition, the fine dust screening step includes a particle size screening step in which the pulverized waste concrete mixed aggregate is separated by particle size by a fine powder separator, and the fine dust contained in the mixed aggregate that has undergone the particle size screening step is primarily collected by a cyclone. It is characterized in that it comprises a secondary dust collecting step in which the ultrafine dust contained in the mixed aggregate that has passed through the first dust collecting step is secondarily collected by a dust collector.

따라서 본 발명은 폐콘크리트 혼합골재를 건식으로 1차 선별하고, 입자가 고운 미세 모래, 미세 먼지 등을 집진한 뒤, 물을 투입하여 세척한뒤 2차 선별함으로써, 작업시간이 단축되어 생산성 및 경제성이 향상된 현저한 효과가 있다. Therefore, in the present invention, the waste concrete mixed aggregate is first selected in a dry method, fine sand, fine dust, etc. are collected, and then water is added and washed and then secondarily selected. There is a marked effect of this enhancement.

도1은 본 발명에 따른 재활용 모래 선별 방법의 흐름도이다.
도2는 본 발명에 사용되는 재활용 모래 선별 장치의 개념도이다.1 is a flowchart of a recycling sand sorting method according to the present invention.
2 is a conceptual diagram of a recycling sand sorting device used in the present invention.

이하, 본 발명의 기술적 사상을 첨부된 도면을 사용하여 더욱 구체적으로 설명한다.Hereinafter, the technical idea of the present invention will be described in more detail with reference to the accompanying drawings.

첨부된 도면은 본 발명의 기술적 사상을 더욱 구체적으로 설명하기 위하여 도시한 일례에 불과하므로 본 발명의 기술적 사상이 첨부된 도면의 형태에 한정되는 것은 아니다.Since the accompanying drawings are merely examples shown to explain the technical idea of the present invention in more detail, the technical idea of the present invention is not limited to the form of the accompanying drawings.

도1은 본 발명에 따른 재활용 모래 선별 방법의 흐름도이다.1 is a flowchart of a recycling sand sorting method according to the present invention.

도1에 도시된 바와 같이, 본 발명의 재활용 모래 선별 방법은, 미분 선별단계(S100), 세척단계(S200), 재생 모래 선별단계(S300), 탈수단계(S400), 이송단계(S500), 건조단계(S600), 상등수 순환단계(S700)를 포함한다.As shown in Fig. 1, the recycling sand sorting method of the present invention includes a fine powder sorting step (S100), a washing step (S200), a reclaimed sand sorting step (S300), a dewatering step (S400), a transfer step (S500), It includes a drying step (S600) and a supernatant water circulation step (S700).

이하에서는, 본 발명의 재활용 모래 선별 방법을 설명하기에 앞서, 본 발명에서 사용되는 재활용 모래 선별 장치(1000)를 먼저 간단하게 설명하고자 한다.Hereinafter, before describing the recycling sand sorting method of the present invention, the recycled sand sorting apparatus 1000 used in the present invention will be briefly described first.

도2는 본 발명에 사용되는 재활용 모래 선별 장치의 개념도이다.2 is a conceptual diagram of a recycling sand sorting device used in the present invention.

도2에 도시된 바와 같이, 상기 재활용 모래 선별 장치(1000)는, 미분선별부(100), 슬러지 챔버(200), 스크래퍼(300), 진동스크린(400), 이송 컨베이어(500), 건조챔버(600), 침전조(700)를 포함한다.As shown in FIG. 2 , the recycling sand sorting device 1000 includes a fine separation unit 100 , a sludge chamber 200 , a scraper 300 , a vibrating screen 400 , a transfer conveyor 500 , and a drying chamber. (600), including a settling tank (700).

먼저, 상기 미분선별부(100)는 분쇄된 폐콘크리트 혼합골재를 크기별로 1차 선별한 뒤, 미세모래 및 미세먼지를 제거하는 장치이다.First, the fine powder sorting unit 100 is a device for first sorting the crushed waste concrete mixed aggregate by size, and then removing fine sand and fine dust.

상기 미분선별부(100)는, 미분선별기(120), 사이클론(140), 집진기(160)를 포함하며, 분쇄된 상태의 폐콘크리트는 상기 미분선별기에서 크기별로 1차 선별되고, 사이클론, 집진기를 순차적으로 거치면서 폐콘크리트에 포함된 초미세먼지, 미세먼지 등이 제거된다.The differential separator 100 includes a differential separator 120, a cyclone 140, and a dust collector 160, and the waste concrete in the pulverized state is first selected by size in the differential separator, and the cyclone and dust collector Ultra-fine dust and fine dust contained in the waste concrete are removed sequentially through the process.

이 때, 상기 혼합골재는 건조한 상태이며, 미분선별기에서 1차 선별된 혼합골재 중, 재활용 모래가 포함되는 크기의 혼합골재만이 사이클론, 집진기를 순차적으로 거치게 된다.At this time, the mixed aggregate is in a dry state, and among the mixed aggregates primarily selected in the pulverization separator, only the mixed aggregate having a size including recycled sand is sequentially passed through the cyclone and the dust collector.

이후, 상기 미분선별부(100)를 거친 폐콘크리트 혼합골재는 슬러지 챔버(200)로 투입되어진다.Thereafter, the waste concrete mixed aggregate passing through the fine fractionation unit 100 is introduced into the sludge chamber 200 .

상기 슬러지 챔버(200)는 물탱크(220)로 부터 물을 공급받으며, 상기 슬러지 챔버 내부에서 혼합골재는 물에 세척되어 지며, 물에 의해 상기 혼합골재는 슬러지화(물과 혼합골재의 혼합물)된다.The sludge chamber 200 receives water from the water tank 220, and the mixed aggregate is washed with water in the sludge chamber, and the mixed aggregate is sludged by water (a mixture of water and mixed aggregate). do.

이 때, 상기 물탱크와 슬러지 챔버를 연결하는 물공급라인에는 유량조절밸브(240)가 장착되며, 상기 유량조절밸브에 의해 슬러지 챔버로 공급되는 물의 양이 조절된다.At this time, a flow control valve 240 is mounted on the water supply line connecting the water tank and the sludge chamber, and the amount of water supplied to the sludge chamber is controlled by the flow control valve.

이어서, 슬러지 챔버 내부의 슬러지화된 재생모래는 스크래퍼(300)를 통해 진동 스크린(400)으로 이송된다.Then, the sludge reclaimed sand inside the sludge chamber is transferred to the vibrating screen 400 through the scraper 300 .

상기 스크래퍼의 일단은 슬러지 챔버의 내부 공간부 하단부에 배치되어, 슬러지 챔버 내부(수중)의 물과 혼합된 상태의 혼합골재를 진동 스크린으로 이송시키는 요소이다. One end of the scraper is disposed at the lower end of the internal space of the sludge chamber, and is an element for transferring the mixed aggregate mixed with water in the sludge chamber (under water) to the vibrating screen.

더욱 상세하게, 상기 스크래퍼(300)는, 일정 간격 이격되게 설치되는 한 쌍의 스프로킷, 상기 한 쌍의 스프로킷에 감겨진 체인, 상기 체인에 일정간격 이격되게 배치되는 복수개의 스크레이퍼 본체, 상기 스프로킷을 회전시키는 구동모터를 포함한다.More specifically, the scraper 300 includes a pair of sprockets installed to be spaced apart from each other by a predetermined interval, a chain wound around the pair of sprockets, a plurality of scraper bodies disposed to be spaced apart from the chain by a predetermined interval, and rotating the sprocket including a driving motor.

상기 스크로킷이 구동모터에 의해 회전됨에 따라 체인이 무한궤도로 회전되되, 상기 체인의 일단은 슬러지 챔버 내부에 위치하고, 타단은 진동 스크린측에 배치된다.As the scrocket is rotated by the driving motor, the chain is rotated in an endless track, one end of the chain is located inside the sludge chamber, and the other end is arranged on the vibrating screen side.

즉, 체인이 일방향이 회전됨에 따라, 상기 체인에 결합된 스크레이퍼 본체는, 슬러지 챔버 내부의 물과 혼합된 재생모래를 진동 스크린(400)측으로 이송시키게 된다.That is, as the chain rotates in one direction, the scraper body coupled to the chain transfers the reclaimed sand mixed with water in the sludge chamber to the vibrating screen 400 side.

그리고 이 때, 상기 스크래퍼(300)는 상부방향(진동 스크린측 방향)으로 높은 기울기를 가지도록 마련되어, 슬러지 챔버 내부의 혼합골재를 용이하게 진동 스크린으로 이송시키게 된다.And at this time, the scraper 300 is provided to have a high inclination in the upper direction (in the direction of the vibrating screen side), so that the mixed aggregate inside the sludge chamber is easily transferred to the vibrating screen.

상기 진동 스크린(400)은, 물과 혼합된 재생모래의 수분을 제거하는 것으로, 상, 하면에 복수 개의 배수공이 형성되고 구동수단에 의해 진동되어, 물이 하부를 통해 배출되면서 재생모래를 탈수시키는 스크린이다.The vibrating screen 400 removes moisture from the reclaimed sand mixed with water, and a plurality of drain holes are formed on the upper and lower surfaces and vibrated by a driving means to dehydrate the reclaimed sand while the water is discharged through the lower part. it's a screen

이후, 진동 스크린(400)에서 탈수가 완료된 재생모래는 이송 컨베이어(500)로 이송되며, 이송 컨베이어(500)를 통해 건조챔버(600)로 투척된다.Thereafter, the reclaimed sand that has been dehydrated in the vibrating screen 400 is transferred to the transfer conveyor 500 , and is thrown into the drying chamber 600 through the transfer conveyor 500 .

이 때, 상기 건조챔버(600)는 내부에 공간부가 형성되고, 건조 시스템이 마련된 하우징 또는, 외부의 빈 공터 등에 모래가 적재되어 자연 건조되는 형태여도 무방하다.At this time, the drying chamber 600 may be of a form in which a space is formed therein, a housing provided with a drying system, or sand is loaded in an empty vacant lot outside and dried naturally.

한편, 상기 진동 스크린(400)에 의해 분리된 오염수는 낙하되어 침전조(700)로 유입된다.Meanwhile, the contaminated water separated by the vibrating screen 400 falls and flows into the settling tank 700 .

상기 침전조(700)는 제 1침전조(720), 제2 침전조(740), 제3 침전조(760)를 포함하며, 상기 오염수는 침전조들을 순차적으로 통과하면서 침전물 및 부유물이 제거된 상등수만이 제3 침전조로 유입되고, 제3 침전조의 상등수는 순환배관(780)을 통해 슬러치 챔버(200)로 유입되도록 한다.The settling tank 700 includes a first settling tank 720, a second settling tank 740, and a third settling tank 760, and the contaminated water sequentially passes through the settling tanks, and only supernatant water from which sediments and suspended matter are removed is produced. 3 is introduced into the settling tank, and the supernatant of the third settling tank is introduced into the sludge chamber 200 through the circulation pipe 780 .

이하에서는 상기 재활용 모래 선별 장치(1000)를 참고하여, 본 발명에 대해 설명하고자 한다.Hereinafter, the present invention will be described with reference to the recycling sand sorting device 1000 .

본 발명의 재활용 모래 선별 방법은, 미분 선별단계(S100), 세척단계(S200), 재생 모래 선별단계(S300), 탈수단계(S400), 이송단계(S500), 건조단계(S600), 상등수 순환단계(S700)를 포함한다.The recycling sand screening method of the present invention includes a fine powder screening step (S100), a washing step (S200), a recycling sand screening step (S300), a dehydration step (S400), a transfer step (S500), a drying step (S600), and supernatant water circulation Step S700 is included.

먼저, 미분 선별단계(S100)는, 분쇄된 폐콘크리트를 입자 크기별로 분리하고, 미세먼지 등을 집진하여 이물질을 제거하는 단계이다.First, the fine powder screening step (S100) is a step of separating the pulverized waste concrete by particle size, and removing foreign substances by collecting fine dust and the like.

일반적으로 수거되어 오는 폐 콘크리트는 큰 덩어리를 이루고 있으며, 재생을 위해서는 작은 입자로 분쇄되어야 하므로, 상기 미분 선별단계(S100)의 전 단계에는 폐콘크리트를 분쇄하는 분쇄단계가 마련된다.In general, the collected waste concrete forms a large mass and needs to be pulverized into small particles for regeneration, so a pulverizing step of pulverizing the waste concrete is provided in the previous step of the fine powder screening step (S100).

아울러 상기 미분 선별단계(S100)는, 입자 크기별 선별단계, 1차 집진단계, 2차 집진단계를 포함한다.In addition, the fine powder screening step (S100) includes a screening step for each particle size, a first dust collection step, and a second dust collection step.

상기 입자 크기별 선별단계는, 분쇄된 폐콘트리트가 미분 선별기(120)에 의해 입자 크기별로 분리가 이루어지는 단계이고, 상기 1차 집진단계는, 사이클론(140)에 의해 미세먼지가 집진되는 단계이고, 상기 2차 집진단계는 집진기(160)에 의해 초미세먼지가 집진되는 단계이다.The separating step by particle size is a step in which the pulverized waste concrete is separated by particle size by the fine powder separator 120, and the first dust collection step is a step in which fine dust is collected by a cyclone 140, and the The secondary dust collection step is a step in which ultrafine dust is collected by the dust collector 160 .

이 때, 상기 입자 크기별 선별단계에서, 폐콘트리트 혼합골재는 최소 3개 이상의 선별조에 의해 대, 중, 소 크기별로 구분되어 선별되며, 이 중 재생모래가 포함된 소 크기별로 구분된 혼합골재만이 상기 1차 집진단계 및 2차 집진단계로 이송되어 진다.At this time, in the step of sorting by particle size, the waste concrete mixed aggregate is classified by large, medium, and small size by at least three sorting tanks, and among them, only the mixed aggregate divided by the small size including reclaimed sand is used. It is transferred to the first dust collecting step and the second dust collecting step.

이어서, 상기 미분 선별단계(S100)를 거친 혼합골재는 상기 세척단계(S200)에서 세척되어 토분이 제거된다.Subsequently, the mixed aggregate that has undergone the fine powder screening step (S100) is washed in the washing step (S200) to remove soil powder.

더욱 상세하게, 상기 미분 선별단계(S100)를 거친 혼합골재는 슬러지 챔버(200)로 투입되며, 상기 슬러지 챔버에는 물 탱크(220)로 부터 물이 유입되는 것으로, 상기 혼합골재는 물에 세척되어진다.In more detail, the mixed aggregate that has passed through the fine separation step (S100) is introduced into the sludge chamber 200, and water is introduced into the sludge chamber from the water tank 220, and the mixed aggregate is washed with water. lose

다음으로, 재생 모래 선별단계(S300)란, 상기 세척단계를 거쳐 세척된 혼합골재 중 작업자의 필요로 하는 입자를 가진 재생 모래만을 선별하는 단계이다.Next, the reclaimed sand screening step (S300) is a step of selecting only reclaimed sand having particles required by the operator from among the mixed aggregates washed through the washing step.

상기 슬러지 챔버(200)에서 물과 함께 혼합된 혼합골재 중 재생 모래만이 스크래퍼(300)를 통해 이송되어 탈수 단계(S400)를 거치게 된다.Of the mixed aggregate mixed with water in the sludge chamber 200, only the reclaimed sand is transferred through the scraper 300 to undergo a dehydration step (S400).

이 때, 작업자는 유량조절밸브(240)를 통해 슬러지 챔버(200) 내부로 유입되는 물의 양을 조절하여, 선별하고자 하는 재생모래의 입자를 조절할 수 있다.At this time, the operator can control the particles of the reclaimed sand to be sorted by adjusting the amount of water flowing into the sludge chamber 200 through the flow rate control valve 240 .

예를 들어, 비교적 많은 양의 물을 슬러지 챔버 내부로 유입시킬 경우, 재생모래의 입자는 커지고, 비교적 적은 양의 물을 슬러지 챔버 내부로 유입시킬 경우, 재생 모래의 입자는 작아지게 된다.For example, when a relatively large amount of water is introduced into the sludge chamber, the particles of the reclaimed sand become larger, and when a relatively small amount of water is introduced into the sludge chamber, the particles of the reclaimed sand become smaller.

이어서, 상기 탈수단계(S400)는, 재생 모래 선별단계(S300)를 통해 선별된 재생 모래를 탈수시키는 단계이다.Subsequently, the dewatering step (S400) is a step of dewatering the reclaimed sand selected through the reclaimed sand screening step (S300).

더욱 상세하게, 스크래퍼(300)를 통해 이송된 재생모래는 물과 혼합되어 혼합물 상태이며, 상기 탈수단계에서, 슬러지 형태의 재생모래는 진동 스크린(400)을 통과하며 탈수된다. In more detail, the reclaimed sand transferred through the scraper 300 is mixed with water to form a mixture, and in the dewatering step, the reclaimed sand in the form of sludge passes through the vibrating screen 400 and is dehydrated.

다음으로, 상기 이송단계(S500)란, 상기 탈수단계를 거친 탈수 재생모래가 후술할 건조단계(S600)로 이송되어지는 단계이다.Next, the transfer step (S500) is a step in which the dewatered regenerated sand that has undergone the dehydration step is transferred to a drying step (S600) to be described later.

탈수된 재생모래는 이송 컨베이어(500)를 통해 건조챔버(600)로 이송되어지며, 상기 건조단계(S600)를 거쳐 건조된다.The dehydrated reclaimed sand is transferred to the drying chamber 600 through the transfer conveyor 500 and dried through the drying step (S600).

한편, 상기 탈수단계(S400)에서 배출된 오수는, 하부에 배치된 침전조(700)를 거쳐 슬러지 챔버(200)로 재순환되는 상등수 순환단계(S700)를 거치게 된다.On the other hand, the sewage discharged in the dehydration step (S400) goes through a supernatant water circulation step (S700) in which it is recirculated to the sludge chamber 200 through the settling tank 700 disposed below.

상기 침전조(700)는 복수 개로 마련되며, 침전조에 부유되는 이물질이나, 침전조 바닥에 침전된 이물질 등은 별도의 제거 작업을 통해 제거함으로써 비교적 깨끗한 상등수가 슬러지 챔버로 재공급 되도록 한다.The settling tank 700 is provided in plurality, and foreign substances floating in the settling tank or foreign substances deposited on the bottom of the settling tank are removed through a separate removal operation, so that relatively clean supernatant water is re-supplied to the sludge chamber.

이상과 같이 본 발명을 도면에 도시한 실시례를 참고하여 설명하였으나, 이는 발명을 설명하기 위한 것일 뿐이며, 본 발명이 속하는 기술 분야의 통상의 지식을 가진 자라면 발명의 상세한 설명으로부터 다양한 변형 또는 균등한 실시례가 가능하다는 것을 이해할 수 있을 것이다. As described above, the present invention has been described with reference to the embodiment shown in the drawings, but this is only for explaining the invention, and various modifications or equivalents from the detailed description of the invention to those of ordinary skill in the art to which the present invention pertains It will be appreciated that one embodiment is possible.

따라서 본 발명의 진정한 권리범위는 특허청구범위의 기술적 사상에 의해 결정되어야 한다.Therefore, the true scope of the present invention should be determined by the technical spirit of the claims.

S100:미분 선별단계
S200:세척단계
S300:재생모래 선별단계
S400:탈수단계
S500:이송단계
S600:건조단계
S700:상등수 순환단계
100:미분선별부
120:미분선별기
140:사이클론
160:집진기
200:슬러지 챔버
220:물탱크
240:유량조절밸브
300:스크래퍼
400:진동 스크린
500:이송 컨베이어
600:건조챔버
700:침전조
720:제1 침전조
740:제2 침전조
760:제3 침전조
780:순환배관S100: Differential selection step
S200: washing step
S300: Reclaimed sand selection step
S400: dehydration step
S500: transfer stage
S600: Drying stage
S700: Supernatant circulation stage
100: differential sorting unit
120: Differential separator
140: cyclone
160: dust collector
200: sludge chamber
220: water tank
240: flow control valve
300: scraper
400: vibrating screen
500: transfer conveyor
600: drying chamber
700: sedimentation tank
720: first settling tank
740: second settling tank
760: third settling tank
780: circulation pipe

Claims (3)

분쇄된 폐콘크리트 혼합골재를 입자 크기별로 분리하고, 미세먼지를 집진하여 이물질을 제거하는 미분 선별단계;
상기 미분 선별단계를 통과한 혼합골재가 슬러지 챔버로 유입되고, 상기 슬러지 챔버 내에서 혼합골재가 물에 의해 세척되어 토분이 제거되는 세척단계;
상기 세척단계에 의해 물과 혼합물 상태인 혼합골재 중, 재생 모래가 스크래퍼에 의해 선별되는 재생 모래 선별단계;
상기 재생 모래 선별단계를 거쳐 선별된 재생 모래가 진동스크린에 의해 탈수되는 탈수단계;
상기 탈수단계를 거친 재생 모래가 이송 컨베이어에 의해 건조챔버로 이송되는 이송단계; 및
상기 건조챔버로 이송된 재생모래가 건조되는 건조단계;를 포함하는 것을 특징으로 하는 재활용 모래 선별 방법.
a fine powder sorting step of separating the crushed waste concrete mixed aggregate by particle size and collecting fine dust to remove foreign substances;
a washing step in which the mixed aggregate that has passed the fine separation step is introduced into a sludge chamber, and the mixed aggregate is washed with water in the sludge chamber to remove soil;
a reclaimed sand sorting step in which reclaimed sand is selected by a scraper from among the mixed aggregates in a state of mixture with water by the washing step;
a dewatering step in which the reclaimed sand selected through the reclaimed sand screening step is dewatered by a vibrating screen;
a transfer step in which the reclaimed sand that has passed through the dewatering step is transferred to the drying chamber by a transfer conveyor; and
and a drying step in which the recycled sand transferred to the drying chamber is dried.
 제1 항에 있어서,
상기 탈수단계에서 발생된 오수는, 상기 진동스크린의 하부에 배치된 침전조로 유입되고, 상기 침전조 내부의 상등수가 상기 세척단계에서 사용되는 상기 슬러지 챔버로 재순환되는 상등수 순환단계를 거치게 되는 것을 특징으로 하는 재활용 모래 선별 방법.
According to claim 1,
The sewage generated in the dehydration step is introduced into the settling tank disposed under the vibrating screen, and the supernatant water inside the settling tank is recycled to the sludge chamber used in the washing step. How to sort recycled sand.
 제1항에 있어서,
상기 미분 선별단계는,
분쇄된 폐콘트리트 혼합골재가 미분 선별기에 의해 입자 크기별로 분리 되는 입자 크기별 선별단계,
상기 입자 크기별 선별단계를 거친 혼합골재에 포함된 미세먼지가 사이클론에 의해 1차로 집진되는 1차 집진단계,
상기 1차 집진단계를 거친 혼합골재에 포함된 초미세먼지가 집진기에 의해 2차로 집진되는 2차 집진단계를 포함하는 것을 특징으로 하는 재활용 모래 선별 방법.
According to claim 1,
The differential selection step is,
Separation step by particle size in which the crushed waste concrete mixed aggregate is separated by particle size by a fine powder separator;
A first dust collection step in which the fine dust contained in the mixed aggregate that has passed through the screening step for each particle size is firstly collected by a cyclone;
and a secondary dust collecting step in which the ultrafine dust contained in the mixed aggregate that has undergone the first dust collecting step is secondarily collected by a dust collector.
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100383569B1 (en) * 2003-04-08 2003-05-16 Teayoung Co Ltd Method and device for manufacturing high purity enriched reproduction sand and gravel using construction wastes
KR101037783B1 (en) 2008-05-26 2011-05-27 주식회사 파워텍 Device for separating sand
KR101785001B1 (en) * 2016-04-12 2017-10-12 주식회사 한미이엔씨 Dry and Wet type Manufacturing Method of Recycling Fine Aggregate

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100383569B1 (en) * 2003-04-08 2003-05-16 Teayoung Co Ltd Method and device for manufacturing high purity enriched reproduction sand and gravel using construction wastes
KR101037783B1 (en) 2008-05-26 2011-05-27 주식회사 파워텍 Device for separating sand
KR101785001B1 (en) * 2016-04-12 2017-10-12 주식회사 한미이엔씨 Dry and Wet type Manufacturing Method of Recycling Fine Aggregate

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