KR20000037710A - Vitrification system - Google Patents

Vitrification system Download PDF

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Publication number
KR20000037710A
KR20000037710A KR1019980052360A KR19980052360A KR20000037710A KR 20000037710 A KR20000037710 A KR 20000037710A KR 1019980052360 A KR1019980052360 A KR 1019980052360A KR 19980052360 A KR19980052360 A KR 19980052360A KR 20000037710 A KR20000037710 A KR 20000037710A
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KR
South Korea
Prior art keywords
waste
vitrification
low
oxygen
level radioactive
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KR1019980052360A
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Korean (ko)
Inventor
송명재
최관식
발레리 티바우트
피에르 브루네로트
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이종훈
한국전력공사
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Application filed by 이종훈, 한국전력공사 filed Critical 이종훈
Priority to KR1019980052360A priority Critical patent/KR20000037710A/en
Priority to AT99973006T priority patent/ATE238970T1/en
Priority to DE69907507T priority patent/DE69907507T2/en
Priority to DE69906381T priority patent/DE69906381T2/en
Priority to ES99973007T priority patent/ES2197716T3/en
Priority to PCT/FR1999/002978 priority patent/WO2000032525A1/en
Priority to KR10-2001-7006819A priority patent/KR100501640B1/en
Priority to JP2000585172A priority patent/JP4048026B2/en
Priority to AT99973007T priority patent/ATE235429T1/en
Priority to US09/856,685 priority patent/US6576807B1/en
Priority to US09/856,684 priority patent/US6815572B1/en
Priority to KR10-2001-7006820A priority patent/KR100507893B1/en
Priority to JP2000585171A priority patent/JP4048025B2/en
Priority to EP99973006A priority patent/EP1137603B1/en
Priority to EP99973007A priority patent/EP1144320B1/en
Priority to CA002352107A priority patent/CA2352107C/en
Priority to ES99973006T priority patent/ES2198167T3/en
Priority to CA002352108A priority patent/CA2352108C/en
Priority to PCT/FR1999/002977 priority patent/WO2000032524A1/en
Publication of KR20000037710A publication Critical patent/KR20000037710A/en

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    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
    • G21F9/28—Treating solids
    • G21F9/30—Processing
    • G21F9/301—Processing by fixation in stable solid media
    • G21F9/302—Processing by fixation in stable solid media in an inorganic matrix
    • G21F9/305—Glass or glass like matrix
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
    • C03B5/005—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture of glass-forming waste materials

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Gasification And Melting Of Waste (AREA)

Abstract

PURPOSE: A vitrification system is provided to reduce the equipment investing cost by eliminating the preliminary process which is needed to make ash. CONSTITUTION: A vitrification system comprises a waste introducing device(11), an oxygen introducing opening(17), a low temperature furnace(21), an upper chamber(15), and an oxygen bubbling tube(30). The wall of the upper chamber(15) is made of a stainless steel. The height of the lower portion of the waste introducing device(11) is regulated. Oxygen is supplied to a glass through an oxygen bubbling tube(30). According to the vitrification system, the equipment investing cost is reduced by eliminating the preliminary process which is needed to make ash.

Description

가연성 중·저준위 방사성 폐기물 직접투입 유리화 시스템Direct injection vitrification system of combustible medium and low level radioactive waste

본 발명은 원자력 발전소에서 발생하는 이온교환수지, 잡고체 및 붕산폐액 등의 가연성 중·저준위 방사성 폐기물을 효과적으로 처리할 수 있는 유도전류가열식 저온로에 직접투입하는 유리화공정에 관한 것이다.The present invention relates to a vitrification process of directly injecting into an induction heating type low temperature furnace capable of effectively treating combustible medium and low level radioactive wastes such as ion exchange resins, grappling bodies and boric acid waste liquids generated in a nuclear power plant.

종래의 폐기물처리장치는 폐기물과 산소의 공급 위치에 따라 연소효율을 저하시키므로 배출기체의 특성에 나쁜 영향을 미칠 뿐만 아니라 가연성 방사성 폐기물은 현재 재로 만든 후 용융유리와 함께 유리화시키는 2단계공정이 알려져 있다. 그러나 가연성 폐기물을 용융로로 직접투입할 수 있다면 재로 만드는데 필요한 전처리공정에 필요한 폐기물의 소각 또는 열분해를 위한 회전식 가열로와 발생된 재를 용융로로 수송하는 장치가 불필요하여 설비투자 및 유지보수비용을 상대적으로 줄일 수 있다.Conventional waste treatment devices reduce combustion efficiency according to the location of waste and oxygen, and thus not only adversely affect the characteristics of the exhaust gas, but also two-stage processes are known in which flammable radioactive waste is made of ash and then vitrified with molten glass. . However, if flammable wastes can be directly introduced into the furnace, a rotary furnace for incineration or pyrolysis of the wastes required for the ashing process and a device for transporting the generated ash to the furnace are not required, thus relatively reducing equipment investment and maintenance costs. Can be reduced.

본 발명과 관련된 종래기술로는 한국특허공개 93-018195, 95-033818은 소각로의 페기물 투입 조절 및 공기분사장치에 관한 것이고, 미국특허 제4,951,580호와 일본특허공개 87-148897호는 폐기물투입장치와 용융장치에 관한 것으로 본 발명과는 목적 및 기술적 구성이 다른 발명이다.The prior art related to the present invention, Korean Patent Publication No. 93-018195, 95-033818 relates to waste input control and air injection device of the incinerator, US Patent No. 4,951,580 and Japanese Patent Publication No. 87-148897 and the waste input device The invention relates to a melting apparatus, which is different from the present invention in terms of object and technical configuration.

방사성 폐기물의 유리화기술 개발은 미국의 사바나 리버 연구소(Savannah River Lab.), 프랑스의 원자력연구소(CEA)등 몇몇기관에서 수행하고 있으나 이들기관에서 연구개발하고 있는 기술은 고준위 방사성 폐액 또는 가연성 폐기물을 일단 전처리하여 재로 만든 후에 유리화하는 2단계 공정이다. 한편 Larson 등이 발표한(참고문헌[1]: D.E. Larson and et. al., "Assessment of Power reactor Waste Immobilization by Vitrification", NP-3225, Battelle, Pacific Northwest Laboratories, Richland, Washington, 1983)바에 의하면 가소화/소각, 절단/압축, 소각, 아스팔트 고화공정등과 비교하여 그 2단계 유리화 공정이 가장 경제적인 폐기물 처리수단임을 주장하였다. 그러나, 본 발명의 직접투입공정은 소각 또는 열분해후 재를 유리화하는 기존의 2단계 공정과 비교하여 유리화 이전단계에서 재를 만들 필요가 없는 1단계 공정으로 단순화시켜 투자비 및 운전비용을 크게 절감할 수 있다. 본 발명의 공정으로 인한 장치비 감소를 20%로 가정할 때 총 자본비용은 약 11%가 감소한다.The development of vitrification technology for radioactive waste is carried out by several institutions such as Savannah River Lab. Of USA and CEA of France. However, the technology being researched and developed by these institutions is used for high-level radioactive waste or flammable waste. It is a two-step process of pretreatment and ashing after vitrification. Meanwhile, according to Larson et al. (Ref. [1]: DE Larson and et. Al., "Assessment of Power reactor Waste Immobilization by Vitrification", NP-3225, Battelle, Pacific Northwest Laboratories, Richland, Washington, 1983). Compared to the plasticization / incineration, cutting / compression, incineration and asphalt solidification processes, the two-stage vitrification process is the most economical means of waste disposal. However, the direct input process of the present invention can greatly reduce the investment cost and operating cost by simplifying to a one-step process that does not need to make ash in the pre-vitrification step as compared to the existing two-step process of vitrifying the ash after incineration or pyrolysis. have. Assuming a 20% reduction in equipment costs due to the process of the present invention, the total capital cost is reduced by about 11%.

표 1. 공정별 총 자본비용 비교 (1000 MWe BWR 기준, 단위: 억원)Table 1.Comparison of Total Cost of Capital by Process (Based on 1000 MWe BWR, Unit: KRW 100 million)

열분해후 유리화 공정(2단계, 발명전)Vitrification process after pyrolysis (2 steps, before invention) 직접투입 유리화 공정*(1단계, 본 발명)Direct injection vitrification process * (stage 1, present invention) 장치비Equipment cost 2828 22.422.4 총 공정투자비Total Fair Investment Cost 132.5132.5 117.9117.9 총 자본비용Total cost of capital 243.8243.8 216.9216.9

본 발명은 유리용융로 내부에 용융된 유리표면위로 폐기물을 공급하고 스텐레스된 상부챔버(15)의 벽면을 냉각자켓으로 감싸주어 유리용융로내에서의 기밀을 향상시키고 가연성 폐기물 종류에 따라 각각 적정량의 과잉산소로 공급하며 저온로(21)내부 폐기물위에 그 산소공급을 골고루 유지하여 폐기물의 연소효과를 향상시키고 배기체의 발생량을 감소시킬 수 있다. 또한, 저온로 바닥으로부터 산소 버블링 튜브(30)를 통하여 용융유리내로 산소를 공급하여 금속성분의 생성을 억제한 균질한 유리를 만든다. 본 발명은 가연성 방사성 폐기물을 소각 또는 열분해후 유리화하는 2단계 공정을 전처리 공정없이 유도전류식 저온로내로 직접투입하여 1단계 공정으로 단순화시키는데 있다.The present invention supplies waste to the molten glass surface inside the glass melting furnace and wraps the wall of the stainless steel upper chamber 15 with a cooling jacket to improve the airtightness in the glass melting furnace and the appropriate amount of excess oxygen, respectively, according to the type of flammable waste. It can be supplied to the furnace and evenly maintain the oxygen supply on the waste inside the low temperature furnace 21 to improve the combustion effect of the waste and reduce the amount of exhaust gas generated. In addition, oxygen is supplied into the molten glass from the bottom through the oxygen bubbling tube 30 at a low temperature to make a homogeneous glass which suppresses the generation of metal components. The present invention simplifies the two-step process of incineration or pyrolysis to vitrify the flammable radioactive waste directly into an induction-type low temperature furnace without pretreatment.

도 1은 유도전류식 저온로를 이용한 폐기물 직접투입 유리화 공정도이다.1 is a process diagram of direct injection vitrification using an induction-type low temperature furnace.

도 2는 가연성 방사성 폐기물 유리화를 위한 폐기물 공급계통 개념도이다.2 is a conceptual diagram of a waste supply system for vitrification of flammable radioactive waste.

〈 도면의 주요 부분에 대한 부호의 설명 〉<Description of the code | symbol about the principal part of drawing>

11. 폐기물 투입장치 14. 냉각수 주입구(상부챔버용)11. Waste input device 14. Cooling water inlet (for upper chamber)

15. 상부챔버 16. 냉각수 배출구(상부챔버용)15. Upper chamber 16. Coolant outlet (for upper chamber)

17. 산소 주입구(4∼8개) 18. 냉각수 주입구(저온로 본체용)17. Oxygen inlet (4-8) 18. Coolant inlet (for low temperature furnace body)

20. 냉각수 배출구(저온로 본체용) 21. 저온로 본체20. Coolant outlet (for low temperature furnace body) 21. Low temperature furnace body

22. 냉각 유도코일 26. 배기체 배출구22. Cooling guide coil 26. Exhaust vent

30. 산소 버블링 튜브 32. 용융유리 배출밸브30. Oxygen bubbling tube 32. Molten glass outlet valve

34. 용융유리 배출구 40. 가연성 잡고체 저장탱크34. Molten glass outlet 40. Flammable catch body storage tank

42. 파쇄기(Shredder) 44. 스크류 공급기(Screw feeder)42. Shredder 44. Screw feeder

46. 유리조성제 및 붕산가루 저장탱크 48. 정량 버켓(Metering bucket)46. Glass Composition and Borate Powder Storage Tank 48. Metering Bucket

50. 이온교환수지 저장탱크 52. 스크류 공급기(Screw feeder)50. Ion-exchange resin storage tank 52. Screw feeder

도 1과 같이 폐기물을 직접투입하는 유리화 공정은 저온로(21)의 상부챔버(15)의 벽면을 스테인레스 재질로 만들고 이를 냉각자켓(14,16)으로 감싸 주어 연소중에 발생하는 무기물 플라이애쉬의 침적량을 줄일 수 있다. 또한, 폐기물 투입장치(11)를 상하로 움직여 유리표면과 폐기물 투입장치(11) 하단의 간격을 조절하여 폐기물의 종류에 따라 방사성 입자가 배기체로 유입되는 양을 최소화할 수 있으므로 배기체 처리계통의 부하를 감소시킬 수 있다. 가연성 폐기물을 투입하는 과정에서 투입장치(11) 벽면내부에 폐기물이 녹아 붙지 않도록 투입관을 수냉각하고 투입관상부로 Ar 또는 N2기체를 주입하여 투입관으로의 배기체의 역류를 방지한다. 또한 조절된 산소분위기하에서 가연성 폐기물을 직접투입하여 용융유리위에서 반응시켜 유기물을 제거하고 극미량 함유된 무기물을 유리화하므로서 발생하는 배기체 및 먼지의 발생량을 최소화하는 공정이다. 또한 배기체 처리계통에 채집된 먼지입자는 방사성 핵종과 무기물의 화합물형태로 존재하며 이는 회수하여 유리용융로로 재순환한다.In the vitrification process of directly introducing waste as shown in FIG. 1, the wall surface of the upper chamber 15 of the low temperature furnace 21 is made of stainless steel and wrapped with a cooling jacket 14 and 16 to deposit the amount of inorganic fly ash generated during combustion. Can be reduced. In addition, by adjusting the distance between the glass surface and the bottom of the waste input device 11 by moving the waste input device 11 up and down, it is possible to minimize the amount of radioactive particles flowing into the exhaust body according to the type of waste, so The load can be reduced. In the process of injecting flammable waste, the input tube is water-cooled to prevent the waste from melting inside the wall of the input apparatus 11, and Ar or N 2 gas is injected into the upper portion of the input tube to prevent the backflow of the exhaust body to the input tube. In addition, it is a process of minimizing the amount of exhaust gas and dust generated by directly injecting flammable waste under controlled oxygen atmosphere and reacting on molten glass to remove organic matter and vitrifying trace minerals. In addition, dust particles collected in the exhaust treatment system exist in the form of a compound of radionuclides and inorganics, which are recovered and recycled to the glass melting furnace.

특히 본 발명의 직접투입 유리화는 용융로내로 투입 및 연소하는 과정에서 수지 및 재의 날림을 방지하고자 수분을 함유한 폐기물을 그대로 사용한바 건조 폐기물보다 배기체내에 미세입자를 적게 함유하고 있어(표2 참조) 보다 안정적으로 무기물 및 방사성 핵종을 유리안에 가두어 놓을 수 있음을 알 수 있다.In particular, the direct injection vitrification of the present invention uses the waste containing moisture as it is in order to prevent the blowing of the resin and ash in the process of input and combustion into the melting furnace, which contains less fine particles in the exhaust body than the dry waste (see Table 2). It can be seen that inorganic and radionuclides can be trapped in glass more stably.

＜ 실시예 1＞<Example 1>

저준위방사성 폐기물인 이온교환수지를 대상으로 저온로에 직접투입하여 유리화하였던바 습윤수지를 직접투입할 때에 건조수지를 직접투입하는 경우보다 유리용융로 배기체 배출구(26)에서 통과하는 배기체중의 먼지입자의 량, 특히 미세먼지입자의 량을 상당히 감소시킬 수 있었다.(표2 참조)Dust particles in the exhaust body passing through the glass melting furnace exhaust outlet 26 are directly injected into the low-temperature furnace and vitrified by the ion exchange resin, which is a low-level radioactive waste. The amount, especially the amount of fine dust particles, can be significantly reduced (see Table 2).

표 2. 습윤 이온교환수지의 직접투입 유리화 비교Table 2. Comparison of Direct Input Vitrification of Wet Ion Exchange Resins

구 분division 건조 수지(종래)Dry resin (conventional) 습윤 수지( 본 발명)Wet Resin (Invention) 저온로 출구 배기체내의 먼지입자 함량 (g/Nm3)Dust Particle Content in the Exhaust Flux at Low Temperature (g / Nm 3 ) 7.27.2 5.05.0 미세입자의 함량(〈0.3μm)Content of Fine Particles (<0.3μm) 매우 많다Very many 많다many 배기체의 온도(℃)Temperature of exhaust body (℃) 570570 580580

* 처리 유량 : 습윤수지는 50% 수분을 함유한 12kg/h 기준, 건조수지는* Flow rate: Wet resin is based on 12kg / h containing 50% moisture, dry resin

6 kg/h 기준임.Based on 6 kg / h.

이온교환수지 직접투입시 용융유리의 표면온도는 1,200℃이상의 고온으로 유지되며 이온교환수지의 경우 50%의 수분을 함유한 50%+50% 양/음이온의 혼상수지로 공급되며 잡고체의 경우는 분쇄 또는 절단후 공급되고 또한, 붕산폐액은 액상으로 공급된다.The surface temperature of the molten glass is maintained at a high temperature of more than 1,200 ℃ when the ion exchange resin is added directly.The ion exchange resin is supplied as a mixed resin of 50% + 50% positive / anion containing 50% moisture. After grinding or cutting, the boric acid waste liquid is supplied in the liquid phase.

산소공급량은 폐기물의 종류, 공급량 및 탄소/질소/수소 등의 유기물 비율에 따라 달라지나 유기물의 완전 연소에 필요한 소요량보다 많은 과잉산소로 공급되며 용융유리 표면으로 골고루 분산되도록 한다. 이때 여러가지 장치셋업 및 운전조건에 따라 저온로 출구에서의 배기체의 온도는 400 내지 600℃로 유지한다.The amount of oxygen supplied depends on the type of waste, the amount supplied, and the ratio of organic matter such as carbon / nitrogen / hydrogen, but is supplied with excess oxygen more than necessary for the complete combustion of organic matter and is evenly distributed over the molten glass surface. At this time, the temperature of the exhaust body at the outlet of the low temperature furnace is maintained at 400 to 600 ℃ according to various device setup and operating conditions.

표 3. 상부챔버 개선에 따른 배기체 유량 변화Table 3. Exhaust Flow Changes with Upper Chamber Improvement

구 분division 기존existing 본 발명The present invention 상부챔버Upper chamber 실리카(냉각 않음)Silica (no cooling) 스테인레스, 냉각자켓Stainless, Cooling Jacket 외부 공기유입량 (Nm3/h)External air inflow (Nm 3 / h) 1313 55 12kg/h의 수지공급시 총 배기체 유량 ( Nm3/h)Total exhaust flow rate at 12 kg / h resin supply (Nm 3 / h) 3535 10kg/h의 수지공급시 총 배기체 유량 ( Nm3/h)Total exhaust flow rate at 10 kg / h resin supply (Nm 3 / h) 2323 먼지 함유량(CCM출구, g/Nm3)Dust content (CCM outlet, g / Nm 3 ) 4.954.95 8.18.1

＜ 실시예 2 ＞<Example 2>

저온로 상부챔버(15)를 스테인레스로 제작하고 냉각자켓을 설치하였을때 SiC 단열재의 상부챔버를 두었을 때에 비하여 저온로내의 기밀이 향상되고 그에따라 저온로의 5 -10 mmH2O정도의 부압으로 생기는 외부공기 유입을 상당히 줄일 수 있다.(표3 참조) 이는 궁극적으로 배기체 처리장치의 크기를 줄이는데 기여한다.When the upper chamber 15 is made of stainless steel at low temperature and the cooling jacket is installed, the airtightness in the low temperature furnace is improved compared to when the upper chamber of SiC insulation material is installed, and thus the negative pressure of 5 -10 mmH 2 O at low temperature This can significantly reduce the inflow of external air (see Table 3), which ultimately contributes to the size of the exhaust treatment system.

배기체중의 먼지입자의 농도는 저온로출구에서 약 1 내지 10 g/Nm3을 유지한다. 용융유리와 무기물 및 방사성 핵종과의 균일 혼합을 돕고 산화조건을 조성하여 유리성분중의 금속성분의 생성을 억제하기 위하여 저온로 바닥으로부터 산소 버블링 튜브(30)를 통하여 산소를 공급한다. 이때 용융유리의 점도는 산소 버블링을 위해 충분히 낮게 유지되어야 한다.The concentration of dust particles in the exhaust body is maintained at about 1 to 10 g / Nm 3 at the low temperature furnace exit. Oxygen is supplied through the oxygen bubbling tube 30 from the bottom at a low temperature in order to facilitate uniform mixing of the molten glass with inorganic materials and radionuclides and to suppress oxidation of metals in the glass component by forming oxidation conditions. The viscosity of the molten glass should be kept low enough for oxygen bubbling.

본 발명의 폐기물 직접투입 공정은 독특한 설계로 유기물은 연소시켜 배기체계통에서 처리하고 무기물 및 방사성 핵종을 산화하여 유리속에 고화시키는데 있어서, 재의 분산을 방지하고 산소와 폐기물의 접촉을 고르게 하여 가연성 방사성 폐기물의 감용효과를 향상시키며 가연성 폐기물을 직접 투입함으로써 재로 만드는데 필요한 전처리공정이 필요없고 1단계공정으로 처리할 수 있으므로 설비투자비와 운전비를 절감할 수 있다.The waste direct injection process of the present invention has a unique design, in which organic matter is combusted to be processed in an exhaust system, and inorganic and radionuclides are oxidized and solidified in the glass, preventing the dispersion of ash and evenly contacting oxygen and waste to combust radioactive waste. It is possible to reduce the capital investment and operation cost because it does not need the pretreatment process necessary to make ash by directly inputting the combustible waste, and can be processed in one step process.

Claims (8)

가연성 중ㆍ저준위 방사성 폐기물의 유리화장치에 있어서, 폐기물 투입장치(11)와 산소주입구(17), 저온로(21)에 상부챔버(15)와 산소 버블링 튜브(30)로 구성된 것을 특징으로하는 가연성 중ㆍ저준위 방사성 폐기물의 유리화장치.In the vitrification apparatus of combustible medium and low-level radioactive waste, the waste input device (11), the oxygen inlet (17), the low-temperature furnace 21 is characterized in that the upper chamber 15 and the oxygen bubbling tube (30) Vitrification apparatus for combustible medium and low level radioactive waste. 제 1항에 있어서, 상부챔버(15)의 벽면을 스테인레스 재질로 하고 냉각자켓으로 감싸주어 저온로내의 기밀을 향상시키는 것을 특징으로 하는 가연성 중·저준위 방사성 폐기물의 유리화장치.2. The vitrification apparatus for combustible medium and low level radioactive waste according to claim 1, wherein the wall of the upper chamber is made of stainless material and wrapped with a cooling jacket to improve airtightness in the low temperature furnace. 제 1항에 있어서, 투입장치(11)의 하부는 용융유리 표면으로부터 높이 조절이 가능하도록 구성된 것을 특징으로 하는 가연성 중·저준위 방사성 폐기물의 유리화장치.The vitrification apparatus of combustible medium and low level radioactive waste according to claim 1, wherein the lower part of the input device (11) is configured to be able to adjust height from the molten glass surface. 제 1항에 있어서, 유리성분중의 금속성분의 생성을 억제하기 위하여 저온로(21) 바닥으로부터 산소 버블링 튜브(30)를 통하여 용융유리에 산소를 분산 공급할 수 있는 구조로된 것을 특징으로 하는 가연성 중·저준위 방사성 폐기물의 유리화장치.The method of claim 1, wherein the oxygen is dispersed and supplied to the molten glass from the bottom of the low-temperature furnace 21 through the oxygen bubbling tube 30 so as to suppress the generation of the metal component in the glass component. Vitrification apparatus for combustible medium and low level radioactive waste. 가연성 방사성 폐기물을 유도전류식 저온로내의 용융유리 표면위로 연속적으로 직접투입하여 고온의 산소분위기에서 유기물을 반응시키고 미량의 무기물 및 방사성 핵종을 산화시켜 용융유리와 혼합함으로써 균질의 유리고화체를 형성시키는 것을 특징으로 하는 가연성 중·저준위 방사성 폐기물의 유리화방법.Continuously injecting flammable radioactive waste onto the molten glass surface in an induction-type low-temperature furnace to react organics in a high temperature oxygen atmosphere, oxidize trace minerals and radionuclides and mix them with molten glass to form a homogeneous glass solid. A vitrification method for flammable medium and low level radioactive wastes. 제 5항에 있어서, 폐기물을 분쇄하여 투입하고 저온로 내부의 용융유리 표면의 온도는 1100∼1,200℃로 유지하고 폐기물의 연소에 필요한 소요량보다 1.25∼1.5배로 산소를 공급하는 것을 특징으로 하는 가연성 중·저준위 방사성 폐기물의 유리화방법.6. The combustible medium according to claim 5, wherein the waste is pulverized and introduced, and the temperature of the molten glass surface inside the low temperature furnace is maintained at 1100 to 1,200 ° C, and oxygen is supplied at 1.25 to 1.5 times the required amount for burning the waste. · Vitrification of low level radioactive waste. 제 5항에 있어서, 저온로내부의 압력은 5 -10 mmH2O정도로 유지하는 것을 특징으로 하는 가연성 중·저준위 방사성 폐기물의 유리화방법.The vitrification method of flammable medium and low level radioactive waste according to claim 5, wherein the pressure in the low temperature furnace is maintained at about 5 -10 mmH 2 O. 제 5항에 있어서, 방사성폐기물 공급시 배기체중의 먼지입자의 농도는 저온로 출구에서 1 내지 10 g/Nm3을 유지하는 것을 특징으로 하는 가연성 중·저준위 방사성 폐기물의 유리화방법.The method for vitrification of combustible medium and low level radioactive wastes according to claim 5, wherein the concentration of dust particles in the exhaust gas during the supply of radioactive wastes is maintained at 1 to 10 g / Nm 3 at the outlet at a low temperature.
KR1019980052360A 1998-12-01 1998-12-01 Vitrification system KR20000037710A (en)

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KR1019980052360A KR20000037710A (en) 1998-12-01 1998-12-01 Vitrification system
AT99973006T ATE238970T1 (en) 1998-12-01 1999-12-01 METHOD AND DEVICE FOR BURNING AND VITRATING WASTE, IN PARTICULAR RADIOACTIVE WASTE
DE69907507T DE69907507T2 (en) 1998-12-01 1999-12-01 METHOD AND DEVICE FOR BURNING AND GLAZING OF WASTE, ESPECIALLY RADIOACTIVE WASTE
DE69906381T DE69906381T2 (en) 1998-12-01 1999-12-01 METHOD AND DEVICE FOR BURNING AND GLAZING OF WASTE, ESPECIALLY RADIOACTIVE WASTE
ES99973007T ES2197716T3 (en) 1998-12-01 1999-12-01 PROCEDURE AND DEVICE FOR INCINERATION AND VITRIFICATION OF WASTE, PARTICULARLY RADIOACTIVE.
PCT/FR1999/002978 WO2000032525A1 (en) 1998-12-01 1999-12-01 Method and device for incineration and vitrification of waste, in particular radioactive waste
KR10-2001-7006819A KR100501640B1 (en) 1998-12-01 1999-12-01 Method and device for incineration and vitrification of waste, in particular radioactive waste
JP2000585172A JP4048026B2 (en) 1998-12-01 1999-12-01 Method and apparatus for incineration and vitrification of waste, especially radioactive waste
AT99973007T ATE235429T1 (en) 1998-12-01 1999-12-01 METHOD AND DEVICE FOR BURNING AND VITRICATING WASTE, IN PARTICULAR RADIOACTIVE WASTE
US09/856,685 US6576807B1 (en) 1998-12-01 1999-12-01 Method and apparatus for incinerating and vitrifying of waste, in particular radioactive waste
US09/856,684 US6815572B1 (en) 1998-12-01 1999-12-01 Method and device for incineration and vitrification of waste, in particular radioactive waste
KR10-2001-7006820A KR100507893B1 (en) 1998-12-01 1999-12-01 Method and device for incineration and vitrification of waste, in particular radioactive waste
JP2000585171A JP4048025B2 (en) 1998-12-01 1999-12-01 Method and apparatus for incineration and vitrification of waste, especially radioactive waste
EP99973006A EP1137603B1 (en) 1998-12-01 1999-12-01 Method and device for incineration and vitrification of waste, in particular radioactive waste
EP99973007A EP1144320B1 (en) 1998-12-01 1999-12-01 Method and device for incineration and vitrification of waste, in particular radioactive waste
CA002352107A CA2352107C (en) 1998-12-01 1999-12-01 Method and device for incineration and vitrification of waste, in particular radioactive waste
ES99973006T ES2198167T3 (en) 1998-12-01 1999-12-01 PROCEDURE AND DEVICE FOR INCINERATION AND VITRIFICATION OF WASTE, PARTICULARLY RADIOACTIVE.
CA002352108A CA2352108C (en) 1998-12-01 1999-12-01 Method and device for incineration and vitrification of waste, in particular radioactive waste
PCT/FR1999/002977 WO2000032524A1 (en) 1998-12-01 1999-12-01 Method and device for incineration and vitrification of waste, in particular radioactive waste

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100611358B1 (en) * 2004-11-24 2006-08-11 한국수력원자력 주식회사 Equipment and Method for Vitrification of Spent Resin Containing Transition Metals
KR100768093B1 (en) * 2006-10-31 2007-10-17 한국지질자원연구원 Method for vitrifying low and intermediate level radioactive waste using iron-phosphate glass

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100611358B1 (en) * 2004-11-24 2006-08-11 한국수력원자력 주식회사 Equipment and Method for Vitrification of Spent Resin Containing Transition Metals
KR100768093B1 (en) * 2006-10-31 2007-10-17 한국지질자원연구원 Method for vitrifying low and intermediate level radioactive waste using iron-phosphate glass

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