KR980008526A - Process for manufacturing compressed moldings for easy nickel extraction of waste stainless sludge - Google Patents

Process for manufacturing compressed moldings for easy nickel extraction of waste stainless sludge Download PDF

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Publication number
KR980008526A
KR980008526A KR1019980002749A KR19980002749A KR980008526A KR 980008526 A KR980008526 A KR 980008526A KR 1019980002749 A KR1019980002749 A KR 1019980002749A KR 19980002749 A KR19980002749 A KR 19980002749A KR 980008526 A KR980008526 A KR 980008526A
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sludge
waste
waste stainless
stainless sludge
extraction
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KR1019980002749A
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Korean (ko)
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서병교
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서병교
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Priority to KR1019980002749A priority Critical patent/KR980008526A/en
Publication of KR980008526A publication Critical patent/KR980008526A/en

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  • Manufacture And Refinement Of Metals (AREA)

Abstract

본 발명은 폐스테인레스 슬러지(sludge)에 함유된 니켈성분의 추출작업이 용이토록 미세입자상의 폐스테인레스 슬러지를 가압성형하여 건조한 압축성형물의 제조공정을 제공코져하는 것으로 흙, 먼지, 기름 등의 불순물이 섞여 있는 미세입자상의 폐스테인레스 슬러지(4)를 압착기(3)에서 100㎏정도의 압으로 가압하여 성형하고 600℃∼1000℃의 건조로(2)에서 1∼2시간 열처리 후 10℃∼20℃ 사이의 냉각수에서 30분 정도 냉각시켜 압축성형물(1)을 제조토록 한 것에 요지가 있다.The present invention is to provide a process for producing a dry compressed molded product by press-molding waste stainless sludge in the form of fine particles to facilitate the extraction of the nickel component contained in the waste stainless sludge. The mixed fine particulate waste stainless sludge (4) is molded by pressing with a pressure of about 100 kg in the compactor (3) and heat-treated in a drying furnace (2) at 600 ° C to 1000 ° C for 1 hour to 10 ° C to 20 ° C. There is a gist that the compression molded product 1 is manufactured by cooling the cooling water for about 30 minutes.

Description

폐스테인레스 슬러지의 니켈성분추출이 용이토록한 압축성형물 제조공정Process for manufacturing compressed moldings for easy nickel extraction of waste stainless sludge

본 발명은 폐스테인레스 슬러지(sludge)에 함유된 니켈성분의 추출작업이 용이토록 미세입자상의 폐스테인레스 슬러지를 가압성형하여 건조한 압축성형물의 제조공정을 제공코져하는 것이다.SUMMARY OF THE INVENTION The present invention provides a process for producing a dry compact by pressing a finely particulate waste stainless sludge to facilitate extraction of the nickel component contained in the waste stainless sludge.

일반적으로 스테인레스강은(Stainless Steel)는 각종 가정용품, 건재(建材), 화학공업용 장치 등 다양한 용도로 사용되고 있으며 그 가공과정에서 비교적 직경이 큰 입자나 파쇄물 조각으로 된 칩(chip)이나 미세분말상의 슬러지(sludge)형태의 가공부산물이 발생하게 되고 이러한 가공부산물중 일부는 전량 매립에 의존하여 폐기되고 있는 실정이다.In general, stainless steel is used for various purposes such as various household products, building materials, and chemical industry devices. In the process of processing, stainless steel is formed of chips or fine powders of relatively large particles or fragments. Sludge-like processed by-products are generated, and some of these processed by-products are disposed of depending on the total amount of landfills.

즉, 폐스테인레스의 가공부산물중 수거와 취급이 비교적 용이한 파쇄물 조각이나 직경이 큰 입자상의 칩은 수거된 후 통상의 재활용 공정을 통하여 크롬, 니켈 등의 성분을 추출하여 재사용되고 있는 반면에, 미세한 입자상의 슬러지는 흙, 먼지, 기름과 기타 미세한 산업찌꺼기 등의 불순물과 함께 섞여 있으므로 인해 재활용을 위한 수거단계에서부터 제외되어 전량 폐기처분되고 있는 것이다.In other words, the waste by-products of the processed by-products, which are relatively easy to collect and handle, and the chips having large diameters are collected and reused by extracting chromium, nickel, etc. through the normal recycling process. Particulate sludge is mixed with impurities such as soil, dust, oil and other fine industrial residues, and thus is removed from the collection stage for recycling.

상기 폐스테인레스 슬러지는 산업현장 곳곳에 누적되어 공기중에 부유하며 신체에 치명적인 악영향을 미칠뿐만아니라 지하에 매립될 시 폐기처리비용이 많이 들고 특히 슬러지에 함유된 크롬, 니켈 등의 성분이 토양과 지하수 등의 오염을 유발하게 되는 것으로서 이의 합리적인 처리방법이 시급히 요구되고 있는 실정이다.The waste stainless sludge accumulates all over the industrial site and floats in the air and has a harmful effect on the body, and when disposed underground, waste disposal costs are high, and especially chromium and nickel contained in the sludge contain soil and groundwater. As it causes pollution, there is an urgent need for a reasonable treatment method thereof.

본 발명은 스테인레스의 가공시 발생되는 미세분말상의 슬러지를 전량 수거하여 재활용을 위한 운반 및 취급이 용이하고 양질의 니켈성분추출이 가능토록 폐스테인레스 슬러지를 압축건조한 성형물의 제조공정을 제공코져하는 것이다.The present invention is to provide a process for producing a molded product of compressed and dried waste stainless sludge so that it is easy to transport and handle for recycling and to extract high quality nickel components by collecting all the fine powder sludge generated during processing of stainless steel.

상기 목적을 달성하기 위한 합리적인 제조공정과 그 압축성형물을 첨부되는 도면과 함께 상세히 살펴보면 하기와 같다.The rational manufacturing process and the compression molding to achieve the above object will be described in detail with reference to the accompanying drawings.

제1도는 본 발명의 제조공정을 보인 계략도.1 is a schematic view showing a manufacturing process of the present invention.

*도면의 주요 부분에 대한 부호의 설명* Explanation of symbols for main parts of drawing

1 : 압축성형물 2 : 건조로1: compression molding 2: drying furnace

3 : 압착기 4 : 슬러지3: compactor 4: sludge

제1도는 본 발명의 제조공정을 보인 계략도를 도시한 것이다.1 is a schematic view showing a manufacturing process of the present invention.

본 발명의 폐스테인레스 슬러지4의 압축성형물1을 그 제조공정과 함께 상세히 살펴보면,Looking at the compression molding 1 of the waste stainless sludge 4 of the present invention in detail with the manufacturing process,

작업의 전단계로 흙, 먼지, 기름과 기타 산업찌꺼기가 섞여 있는 미세입자상의 폐스테인레스 슬러지4(이하 슬러지라 칭한다)를 산업현장으로부터 수거한다.As a preliminary step, waste particulate sludge4 (hereinafter referred to as sludge), which is a mixture of soil, dust, oil and other industrial debris, is collected from the industrial site.

제1공정(폐스테인레스 슬러지 압축공정);First step (waste stainless sludge compression step);

수거된 슬러지4를 형틀에 투입 후 압착기3(press)에서 100㎏정도의 압으로 가압하여 성형한다.The collected sludge 4 is put into the mold and press-molded with a pressure of about 100 kg by a press 3 (press).

상기 슬러지4의 압축성형물1은 원형, 사각 등의 다양한 형상과 크기로 성형할 수 있으나 취급과 운반이 용이하도록 지름20㎝, 높이10㎝ 내외의 원반형으로 성형하는 것이 바람직하다.Compression molded article 1 of the sludge 4 may be molded into various shapes and sizes such as circular and square, but is preferably molded into a disk shape having a diameter of 20 cm and a height of 10 cm to facilitate handling and transport.

상기 압착기3에서 슬러지4를 압착하는 공정은 호퍼에 투입된 슬러지4가 이송스크류에 의해 이송되어 하부금형에 공급되고 상부금형에 의해 가압된 후 압축성형물1의 상태로 배출되는 것으로 이는 통상의 압착기3의 압착공정과 동일한 것으로서 이에 대한 상세한 설명은 생략키로 한다.In the process of pressing the sludge 4 in the presser 3, the sludge 4 injected into the hopper is transferred by the transfer screw, fed to the lower mold, pressurized by the upper mold, and discharged in the state of the compression molding 1, which is the conventional presser 3 The same as the crimping process, a detailed description thereof will be omitted.

상기와 같이 압축성형된 폐스테인레스 슬러지4에는 수거시 각종 먼지, 기름찌꺼기, 수분 등의 불순물이 함께 섞여 있는바 이는 압축성형물1의 내구성을 저하시켜 이동이나 적재시 쉽게 파손되는 현상이 발생하게 된다.As described above, the compacted waste stainless sludge 4 is mixed with various dusts, oil residues, moisture, and other impurities during collection, which degrades the durability of the compression molded product 1, and thus easily breaks when moving or loading.

제2공정(열처리공정)2nd process (heat treatment process)

이 공정은 제1공정에서 가압 성형한 압축성형물1의 파손현상을 방지하고 불순물을 제거하기 위한 공정으로 상기 폐스테인레스 슬러지4의 압축성형물1을 건조로2에서 600℃∼1000℃의 고열로 1∼2시간 정도 열처리 한다.This process is to prevent damage of the compression molded article 1 press-molded in the first step and to remove impurities. The compressed molded article 1 of the waste stainless sludge 4 is dried at a high temperature of 600 ° C. to 1000 ° C. in a drying furnace 2. Heat treatment for 2 hours.

상기 제2공정은 압축성형물1의 내구성을 증가시켜 운반과 취급이 용이하게 되고 불순물이 소각제거된 상태가 된다.The second process increases the durability of the compression molding 1 to facilitate transport and handling, and to incinerate impurities.

이렇게 열처리작업을 거치는 것은 통상의 니켈성분추출공정에 투입시 양질의 니켈성분을 쉽게 추출하기위해 불순물을 사전에 제거하기 위한 것이다.This heat treatment is to remove impurities in advance in order to easily extract the high quality nickel component in the usual nickel component extraction process.

제3공정(냉각공정)3rd process (cooling process)

이 공정은 제2공정에서 고열로 열처리한 압축성형물1을 이동과 적재를 용이하게 하기 위한 공정으로 열처리 되어진 압축성형물1을 10℃∼20℃ 사이의 냉각수에서 30분정도 냉각시킨 후 냉각수에서 끄집어 낸다.This process is to facilitate the movement and loading of the compressed molding 1 heat treated at high temperature in the second process. The compressed molding 1, which has been heat treated, is cooled in the cooling water between 10 ° C. and 20 ° C. for about 30 minutes and then removed from the cooling water. .

이와 같은 공정으로 처리되는 본 발명에서 만들어진 압축성형물1은 니켈성분추출재료로 사용되는 바 니켈성분추출공정은 공지의 사항으로 본 발명은 이러한 니켈성분의 추출전에 폐스테인레스 슬러지4로된 양질의 압축성형물1과 그 제조공정을 제공함에 목적이 있는 것이다.Compression molding 1 made in the present invention treated by such a process is used as a nickel component extraction material bar nickel component extraction process is known in the present invention is a high quality compression molding made of waste stainless sludge 4 before the extraction of such nickel component 1 and its manufacturing process.

이상에서 상세히 살펴본 바와 같이 본 발명은 입자상의 폐스테인레스 슬러지4를 효과적으로 재활용할 수 있는 압축성형물1의 제조공정을 제공하므로서 매립에 의한 환경오염방지와 폐기물처리비용의 절감을 통한 경제적 실익을 도모함은 물론 양질의 니켈성분을 추출할 수 있는 압축성형물1을 상품화하여 외국으로 수출하므로서 외화획득에 일조 할 수 있는 등 그 기대되는 가치가 다대한 매우 유용한 발명이다.As described in detail above, the present invention provides a manufacturing process of the compressed molded article 1 that can effectively recycle particulate waste stainless sludge 4, thereby promoting economic benefits through prevention of environmental pollution by landfill and reduction of waste disposal costs. It is a very useful invention that the expected value is great because it can help to acquire foreign currency by commercializing the compressed molding 1 which can extract high quality nickel component and exporting it to foreign countries.

Claims (1)

흙, 먼지, 기름 등의 불순물이 섞여 있는 미세입자상의 폐스테인레스 슬러지4를 압착기3에서 100㎏정도의 압으로 가압하여 성형하고 600℃∼1000℃의 건조로2에서 1∼2시간 열처리 후 10℃∼20℃ 사이의 냉각수에서 30분 정도 냉각시켜 압축성형물1을 제조토록 함을 특징으로 하는 폐스테인레스 슬러지의 니켈성분추출이 용이토록한 압축성형물 제조공정.Waste granular sludge 4, which is mixed with impurities such as soil, dust and oil, is molded by pressing with a pressure of about 100 kg in a compactor 3 and heat-treated at 600 ° C to 1000 ° C in a drying furnace 2 for 1 to 2 hours, and then to 10 ° C. A process for producing a compacted product for easy extraction of nickel components from waste stainless sludge, which is carried out by cooling for 30 minutes in a cooling water of -20 ° C. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019980002749A 1998-01-23 1998-01-23 Process for manufacturing compressed moldings for easy nickel extraction of waste stainless sludge KR980008526A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040012248A (en) * 2002-08-02 2004-02-11 최성조 Method for recovery of fine stainless steel fiber from stainless grinding swarf
KR100597206B1 (en) * 2005-02-04 2006-07-06 엘지이노텍 주식회사 Input tracking filter for tuner

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040012248A (en) * 2002-08-02 2004-02-11 최성조 Method for recovery of fine stainless steel fiber from stainless grinding swarf
KR100597206B1 (en) * 2005-02-04 2006-07-06 엘지이노텍 주식회사 Input tracking filter for tuner

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