Abstract:
The present invention relates to a spouted bed type reactor for semi-dry flue gas desulfurization and a multistage desulfurization method using the same. The purpose of the present invention is to remove dust with high density in flue gas including sulfur oxide (SOx), to increase the contact reaction rate of the sulfur oxide (SOx) included in the flue gas with absorbent powder for desulfurization inserted in a reactor by lowering pressure difference between the fore-end and rear-end of the reactor via the improvement of the inflow speed of the flue gas in the reactor and the novel composition of a method for supplying recirculated absorbent powder, and to increase desulfurization rate by conducting the multistage reaction of the sulfur oxide (SOx) with the absorbent powder in the reactor. The spouted bed type reactor for semi-dry flue gas desulfurization according to the present invention comprises a gravity-type settling box (1); a venturi part (2) for increasing the flow rate of the flue gas; a main body (3) of the reactor composed of a conic fluidizing part (31) for removing the sulfur oxide while flowing with the absorbent powder for desulfurization and a fluidizing part (32) for removing the sulfur oxide by circulating and flowing water sprayed upward, the flue gas and absorbent powder; a absorbent powder supply device (4) for supplying the absorbent powder for desulfurization with compressed air into the conic fluidizing part; a recirculated absorbent powder supply device (5) for re-supplying unreacted absorbent powder for desulfurization into the conic fluidizing part; and a water spray supply device (6) for spraying water and compressed water upward. Also the present invention provides a multistage desulfurization method using the spouted bed type reactor for semi-dry flue gas desulfurization. [Reference numerals] (AA) Combustion flue gas
Abstract:
본 발명은 다단 유동 수소 환원 반응을 이용한 희소금속 제련 장치 및 방법에 관한 것으로, 그 목적은 환원제를 수소로 사용하는 다단 유동 수소 환원 반응을 통해 희소금속 광석의 환원 반응율을 높여 고순도의 금속화를 이루어 제련이 이루어지도록 한 희소금속 제련 장치 및 방법을 제공하는 데 있다. 본 발명의 구성은 희소금속 광석을 수소 환원반응시키는 다단 연결된 1차 유동 환원로 및 2차 유동 환원로와; 상기 1차 및 2차 유동 환원로에서 배출된 배가스 중에서 입자상 물질은 회수하여 재사용하고 나머지 배가스는 각각 수소분리 정제장치 및 1차 유동 환원로로 공급하는 1차 싸이클론 및 2차 싸이클론과; 상기 1차 싸이클론에서 배출된 배가스 중 입자상 물질은 최종 제거하고 미반응 수소는 분리하는 미반응 수소분리 정제장치와; 상기 2차 유동 환원로에서 배출된 환원된 희소금속 광석을 성형하는 단광장치와; 성형된 희소금속 광석을 용융하여 고순도의 희소금속을 생산하는 용융로;를 포함하여 구성된 다단 유동 수소 환원 반응을 이용한 희소금속 제련 장치 및 이를 이용한 제련방법을 발명의 특징으로 한다.
Abstract:
본 발명은 가스터빈 및 압축기 유입공기 정화용 심층여과 에어필터 여재 및 이를 사용한 심층여과 에어필터 카트리지에 관한 것으로, 그 목적은 가스터빈 및 압축기 유입공기 정화용 심층여과 에어필터 카트리지를 위한 압력손실이 낮게 유지되고, 탈진조작이 필요 없고, 에어 필터 여재의 공극크기 변화가 없는 심층여과용 에어필터 여재 및 이를 사용한 심층여과용 에어필터 카트리지를 제공하는데 있다. 본 발명의 심층여과 에어필터 여재는 멀티 층을 포함하는 탈진조작이 필요 없는 심층여과에 관한 것으로 정전 멜트블로운, 정전 단 섬유, 서멀본드로 이루어진 절곡 가능한 압력손실이 낮고, 먼지 등 먼지 등 입자상물질 포집성능이 우수하며 단위면적당 먼지 누적포집량(dust holding capacity)이 크며, 우수한 발수성과 내수성을 갖는다.
Abstract:
The present invention relates to a spouted bed type reactor for dry flue gas desulfurization and a multi-stage desulfurization method using the same. The present invention aims to provide a spouted bed type reactor for dry flue gas desulfurization and a multi-stage desulfurization method using the same in which a pressure difference between a front end and a rear end of a spouted bed type is lowered to raise a catalysis rate of sulfur oxide included in exhaust gas and a powder absorbent for desulfurization introduced into a reactor and concurrently to collect in multiple stages the sulfur oxide (Sox) and the powder absorbent according to a density difference in the reactor, and thus to collect and react in multiple stages the sulfur oxide (Sox) and the powder absorbent, thereby raising a desulfurization ratio. A spouted bed type reactor for dry flue gas desulfurization comprises: a gravity sedimentation box (1); a venturi unit (2) increasing the velocity of exhaust gas; a reactor body (3) including a conical fluidization unit (31) in which a powder absorbent for desulfurization flows to remove sulfur oxide, a fluidization unit (32) in which water, the exhaust gas and the powder absorbent injected in an upper direction, circulate to remove the sulfur oxide, and an absorbent recirculation cyclone (33) precipitating and collecting the powder absorbent that is not to be reacted included in the exhaust gas; a powder absorbent supply device (4) supplying the powder absorbent for desulfurization in the conical fluidization unit; a re-circulation powder absorbent supply device (5) re-supplying the powder absorbent that is not to be reacted for desulfurization to the conical fluidization unit; a water injection supply device (6) injecting compressed air and water upward; and a filter dust collector (7).
Abstract:
PURPOSE: An integrated apparatus for removing fine dust and nitrogen oxides is provided to successively collect fine dust particles at a high efficiency and remove over 90% of nitrogen oxides by an SCR catalyst from exhaust gas in one apparatus, to suppress the increase of the pressure loss of a dust collecting filter, to remarkably improve the filtration rate, and to drastically increase the fine dust collection rate. CONSTITUTION: An integrated apparatus for removing fine dust and nitrogen oxides successively comprises a filtering and dust collecting part(A), a cleaning part(B), an exhaust gas mixing part(C), and an SCR reaction part(D). The filtering and dust collecting part comprises an outer container(1); an inlet and an outlet formed on the both ends of the outer container respectively; and an outer shape successively formed with a first standard hopper(2a), a second standard hopper(2b), a first modified hopper, and a second modified hopper in the lower part of the outer container. The internal space region of the outer shape is divided into first and second chamber space areas comprising an inner container using multiple partition walls and one partition plate, and third and fourth chamber space areas outside of the inner container. Fine dust is removed from each of the divided chamber space areas. The cleaning part removes the fine dust which is filtered by the filtration and dust collecting part. The exhaust gas mixing part injects a reducing agent into the exhaust gas passed the filtration and dust collecting part, and mixes. The SCR reaction part selectively reduces and removes nitrogen oxides from the exhaust gas passed the exhaust gas mixing part. [Reference numerals] (AA) Exhaust gas