KR20010016212A - Mineral brick footpath-roadway and manufacturing method of the same - Google Patents

Mineral brick footpath-roadway and manufacturing method of the same Download PDF

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KR20010016212A
KR20010016212A KR1020000069756A KR20000069756A KR20010016212A KR 20010016212 A KR20010016212 A KR 20010016212A KR 1020000069756 A KR1020000069756 A KR 1020000069756A KR 20000069756 A KR20000069756 A KR 20000069756A KR 20010016212 A KR20010016212 A KR 20010016212A
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mineral
sewage sludge
manufacturing
roadway
sludge
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KR1020000069756A
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Korean (ko)
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김태현
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김태현
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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/04—Waste materials; Refuse
    • C04B18/30—Mixed waste; Waste of undefined composition
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C1/00—Building elements of block or other shape for the construction of parts of buildings
    • E04C1/40—Building elements of block or other shape for the construction of parts of buildings built-up from parts of different materials, e.g. composed of layers of different materials or stones with filling material or with insulating inserts
    • 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
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Sludge (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

PURPOSE: Provided is a manufacturing method of mineral blocks for sidewalk and roadway which has improved strength, durability and various colors compared with conventional cement blocks by using sewage sludge material and additives such as kaolin, clay and mineral binder. CONSTITUTION: The method comprises the steps of: drying sewage sludge(water content: 70-85%) in air; burning organics at 300-600deg.C; mixing 65-75wt.% of sewage sludge, 20-25wt.% of clay and 5-10wt.% of mineral binder(bentonite) for 20-30mins; adding an effective amount of water; pressing and hot-blast drying; sintering at 1000-1400deg.C for 8hrs.

Description

보·차도용 미네럴블록 및 그 제조방법{MINERAL BRICK FOOTPATH-ROADWAY AND MANUFACTURING METHOD OF THE SAME}MINERAL BRICK FOOTPATH-ROADWAY AND MANUFACTURING METHOD OF THE SAME}

본 발명은 전국의 하수처리 과정에서 발생되는 하수슬러지의 주성분이 산화규소(SiO2) 및 산화제2철(Fe2O3), 알루미나(Al2O3)등 양질의 광물질 임에도 폐기물로 분류, 처리비용을 부담하며 전량 해양투기 및 매립에 의존하고 있음을 안타깝게 여기고 제조방법의 신기술 개발로 이를 재활용코자 그 제조방법을 제공하기 위함을 그 목적으로 한다.The present invention is classified and treated as waste material even though the main constituents of sewage sludge produced during sewage treatment nationwide are high quality minerals such as silicon oxide (SiO 2 ), ferric oxide (Fe 2 O 3 ), and alumina (Al 2 O 3 ). It is a pity to bear the cost and to rely on the entire ocean dumping and landfill, and to provide the manufacturing method for recycling it by developing new technology of the manufacturing method.

현재 일반적으로 사용중인 보·차도용 블록은 시멘트, 모래, 자갈의 혼합물을 고압으로 성형하여 건조 제작되며, 이들은 획일적인 시멘트의 원색과 형상의 수준을 벗어나지 못한 보편적인 기술로 생산되고 있는 실정으로 환경 친화적인 제품이 되지 못하는 문제점을 안고 있다.Currently used beam and drive blocks are manufactured by molding a mixture of cement, sand, and gravel under high pressure, and they are produced with a universal technology that does not deviate from the level of primary color and shape of uniform cement. There is a problem that does not become a friendly product.

그러나 본 발명은 처리비용을 주고 버리는 하수슬러지를 재활용하는 신기술의 개발로 인체에 유해한 시멘트 블록과 달리 광물질 자체의 은은한 색상을 유지하는 상태로써 여러 가지 점토를 첨가하여 제작 하므로써 보·차도용 미네럴블록의 경우 도시 거리 문화의 분위기를 쇄신시킬 수 있을 것으로 보인다.However, the present invention is to develop a new technology that recycles sewage sludge, which gives a treatment cost, and unlike the cement block, which is harmful to the human body, maintains the soft color of the mineral itself, and thus, by adding various clays, If so, the atmosphere of urban street culture could be renewed.

또한 하수처리장 시설을 운영하는 한 하수슬러지는 계속 발생하므로 원재료의 수급에 큰 문제가 없을뿐만 아니라 제조원가가 저렴하므로 보·차도용 블록 또한 저렴한 단가로 공급할 수 있으므로 경제적으로 최대한의 효과를 거둘 수 있도록 버려지는 하수슬러지를 재활용 할 수 있는 방법을 안출하기에 이르렀다.In addition, as long as the sewage treatment plant is operated, sewage sludge continues to occur, so there is no big problem in the supply and demand of raw materials, and the manufacturing cost is low, so the block for block and roadway can be supplied at a low price, so it can be economically maximized. Has come up with a way to recycle sewage sludge.

본 발명은 폐기물로 분류되어 해양투기 및 매립에 의존하고 있는 하수슬러지를 재활용하여 광물질의 보·차도용 블록을 제조하는 방법을 제공코저 한다.The present invention is to provide a method for manufacturing a block for the maintenance and removal of minerals by recycling sewage sludge classified as waste and depending on ocean dumping and landfill.

이를 위하여 본 발명은 하수슬러지가 순수한 광물질 성분임에도 불구하고 결합력이 없어 이를 해결하고자 하는 목적으로 안출하게 되었으며, 이러한 목적달성을 위하여 소성로(燒成爐)에서 하수슬러지내의 유기물을 일정한 온도로 태운 후 순수한 점토 및 카올린, 광물성결합제(Binder)를 첨가하여 결합력을 향상 시키므로써 기본 또는 이형 치수의 일정한 형태로 제작 보·차도용 미네럴 블록으로 재활용하게 이르렀다.To this end, the present invention has been devised for the purpose of solving the problem even though the sewage sludge is a pure mineral component, in order to achieve this purpose, after burning the organic material in the sewage sludge at a constant temperature in the kiln (pure) By adding clay, kaolin, and mineral binder (Binder) to improve the binding force, it has been recycled into a general block for the production and repair of the general block in the form of basic or deformed dimensions.

본 발명은 하수처리장의 최종 부산물인 함수율 70∼85% 정도의 하수슬러지를 대기중에서 적당히 건조시키는 제1 공정과,The present invention is the first step of appropriately drying the sewage sludge having a water content of 70 to 85% of the final by-product of the sewage treatment plant in the air,

상기 제1 공정을 거친 후 슬러지내의 유기물을 태우기 위하여 소성로(燒成爐)에서 일정한 온도로 유기물을 태우는 제2 공정과,A second step of burning the organic material at a constant temperature in a calcination furnace to burn the organic material in the sludge after the first step;

상기 제2 공정을 거친 원료에 전체중량 대비 20∼25%정도의 점토와 광물성 결합제(Binder)인 벤토나이트(Bentonight)를 5∼10% 계량하여 혼합기에서 20∼30분간 혼련시키는 제3 공정을 실시하였다.The third step of kneading in a mixer for 20 to 30 minutes by weighing about 5 to 10% of the clay and bentonite, a mineral binder (Binder) of about 20 to 25% of the total weight of the raw material passed through the second process. .

다음, 상기 제3 공정이 종료된 후 유해물질이 함유되지 않은 물을 교반이 잘 이루어지도록 적정량 공급하여 충분히 교반시키는 제4 공정에 있어서, 교반시간은 20∼30분 정도를 소요하였다.Next, in the fourth step of supplying a proper amount of water containing no harmful substances after the third step is completed to make the stirring well, the stirring time was about 20 to 30 minutes.

다음, 상기 제4 공정을 거친 원료를 토련기에 넣어 기본 또는 이형치수의 여러 가지 형태로 성형하는 제5 공정과 ; 이때 토련기는 압력이 300톤으로 소정의 두께를 가지는 블록을 생산할 수 있는 직사각형 및 여러 가지 형태의 금형을 사용하였다.Next, a fifth step of molding the raw material that passed through the fourth step into a refining machine in various forms of basic or release dimensions; At this time, the refining machine used a mold of various shapes and rectangles to produce a block having a predetermined thickness with a pressure of 300 tons.

다음, 상기 제5 공정을 거친 원료를 컨베어밸트를 타고 건조실로 이동시켜 열풍을 가하면서 형상이 변하지 않도록 적당히 건조시키는 제6 공정과,Next, a sixth step of appropriately drying the raw material passed through the fifth step into a drying chamber by a conveyor belt so as not to change shape while applying hot air;

상기 제6 공정을 거친 반제품을 소성로(爐) 안으로 투입시켜 1000℃∼1400℃의 열을 가하여 8시간 정도 소성시키는 제7 공정과A seventh step of firing the semi-finished product having passed through the sixth step into a sintering furnace and heating it for about 8 hours by applying heat of 1000 ° C to 1400 ° C;

제7 공정을 거친 완제품을 대기중에서 적당시간 냉각시키는 제8 공정으로 구성됨을 특징으로 한다.And an eighth step of cooling the finished product, which has undergone the seventh step, in the air for a suitable time.

상기 전공정을 거쳐 출고된 제품의 색상은 연한 핑크색을 띄고 규격은 조금도 변형이 없었으며 표면은 매우 매끈함은 물론 색상의 표출상태 또한 은은하고 미려하였다.The color of the product shipped through the above process had a light pink color and the specification had no deformation, and the surface was very smooth as well as the appearance state of the color was subtle and beautiful.

상기 제3 공정에서 교반을 하는 점토의 여러 가지 종류에 따라 완제품의 색상이 다르므로 여러 가지 형태의 모양과 색상으로 도시미관이 크게 향상되는 장점이 있다.Since the color of the finished product is different according to various kinds of clay to be stirred in the third process, there is an advantage that the appearance and appearance are greatly improved in various shapes and colors.

그리고 완제품인 시편을 24시간 동안 물속에 담근 후 꺼낸 즉시 휨강도를 검사하였다. 시편의 양측 밑면에 받침물을 고이고 중앙부분에 누름하중을 가하여 하기의 공식에 따라 휨강도를 측정하였다.The specimens were immersed in water for 24 hours and immediately tested for flexural strength. Bending strength was measured according to the following formula by applying the supporting material to the bottom of both sides of the specimen and applying the pressing load to the center part.

여기서 P는 시험기가 나타낸 최대하중(N) {kgf}Where P is the maximum load (N) indicated by the tester {kgf}

L은 받침물 사이의 거리 (cm)L is the distance between the supports (cm)

b는 상기 지점간에 직각 방향의 평균너비(㎠)b is the average width (cm 2) in the perpendicular direction between the points

d는 블록의 평균 두께(cm) 이다d is the average thickness of the block in cm

한편, KS규격에 의하면 보도용 블록은 휨강도가 최소 490N/㎠{50kgf/㎠}, 차도용 블록은 588N/㎠{60kgf/㎠}이어야 하는데 본 제품의 휨강도는 588N/㎠{60kgf/㎠}의 수치를 충분히 만족함을 알 수 있었다On the other hand, according to the KS standard, the bending block should have a minimum bending strength of 490N / ㎠ {50kgf / ㎠}, and the driveway block should have 588N / ㎠ {60kgf / ㎠}. I was satisfied with the numbers.

본 발명은 매립 또는 해양투기로 버려지는 하수슬러지를 재활용 하므로써 전국적으로 년간 처리비용 350억원 정도를 절약 할 뿐 아니라 해양오염 방지 및 지구 환경개선에도 커다란 도움이되며, 통상의 시멘트 블록에 비하여 강도가 강하고 광물질 자체의 은은한 색상으로 인하여 외관상 미려하므로 도시미관의 획기적인 개선은 물론 내구성이 크게 향상되는등 여러 가지 장점이 있다.The present invention not only saves about 35 billion won in annual treatment costs nationwide by recycling sewage sludge that is disposed of in landfills or dumping at sea, but also greatly helps in preventing marine pollution and improving the global environment. Because of the subtle color of the mineral material itself, the appearance is beautiful, and there are various advantages such as not only a drastic improvement of the urban aesthetics but also a significant improvement in durability.

또한 년간 보·차도용 미네랄 블록을 생산, 판매할 경우 약 410억원의 판매 수익을 얻을 수 있을 것으로 기대된다.In addition, annual production and sales of mineral block for road and driveway is expected to generate sales of about 41 billion won.

특히 버려지는 하수슬러지를 재활용 함으로써 제품 생산시 원재료의 수급에 따른 이익을 얻을 수 있음은 물론, 슬러지 처리를 위해 수반되었던 처리비용 부담등 비경제적인 면과 자연환경 보호적인 측면에 대치되는 면 등이 해소될 수 있는 국가적으로 아주 유용한 효과가 있으리라 기대된다.In particular, by recycling the sewage sludge that is thrown away, not only can you benefit from the supply and demand of raw materials, but also eliminate the uneconomical aspects such as the burden of treatment costs involved in sludge treatment and the protection of the natural environment. It is expected to have a very useful effect nationally.

Claims (2)

가. 함수율 70∼85%정도인 하수슬러지를 대기중에서 적당히 건조 시키는 제 1공정end. First step to dry sewage sludge with water content of 70 to 85% in air 나. 제 1공정을 거친후 소성로에서 300℃∼600℃정도의 온도로 슬러지내의 유기물을 태우는 제 2공정I. Second step of burning organic material in sludge at the temperature of 300 ℃ ~ 600 ℃ in the kiln after going through the first step 다. 제 2공정을 거친후 원료 전체중량 대비 슬러지를 65∼70%, 점토 20∼25%, 광물성결합제 5∼10%를 혼합기에서 20∼30분동안 훈련하는 제 3공정All. After the second step, the third step of training sludge 65 ~ 70%, clay 20-25%, mineral binder 5-10% of the total weight of the raw material in the mixer for 20-30 minutes 라. 제 3공정을 거친후 유해물질이 함유되지 않은 물을 적당량 첨가후 교반하는 제 4공정la. After the third step, the fourth step of stirring after adding an appropriate amount of water containing no harmful substances 마. 제 4공정을 거친 원료를 토련기를 통해 일정한 압력을 이용 기본 또는 여러가지 형태로 성형하는 제 5공정hemp. The fifth process of molding the raw material which passed the fourth process into basic or various forms using a constant pressure through a refining machine 바. 제 5공정을 거친 반제품을 건조실에서 열풍을 가하여 수분이 없도록 적당히 건조하는 제 6공정bar. The sixth step of drying the semi-finished product after the fifth step in the drying room by applying hot air 사. 제 6공정을 거친후 완성된 반제품을 소성로(燒成爐)에서 1000℃∼1400℃의 온도로 열을 가하여 8시간 정도 소성(燒成)시키는 제 7공정four. After the sixth process, the finished semi-finished product is heated in a kiln at a temperature of 1000 ° C to 1400 ° C and calcined for about 8 hours. 아. 완제품을 대기중에서 일정시간 냉각시키는 제 8공정으로 구성됨을 특징으로 하는 보·차도용 미네럴블록의 제조방법Ah. Manufacturing method of mineral block for road and driveway comprising the eighth process of cooling the finished product in the air for a certain time 가. 제 1항의 방법으로 제조된 보·차도용 미네럴블록end. Mineral block for road and roadway made by the method of claim 1
KR1020000069756A 2000-11-22 2000-11-22 Mineral brick footpath-roadway and manufacturing method of the same KR20010016212A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020074361A (en) * 2001-03-20 2002-09-30 한국화학연구원 Artificial granulated culture soil for grass creation and preparation method of thereof
KR100450898B1 (en) * 2001-05-03 2004-10-01 송기도 production of incinerated construction materials using wastewater sludge

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