Abstract:
본 발명은 분탄을 석탄 화력 발전소의 버너들로 공압 운송하는 수단과 석탄 화력 발전소의 버너들 또는 연소 챔버에 연소 공기를 공급하는 수단을 포함하며, 연소 공기와 캐리어 공기량이 조절되는, 석탄 화력 발전소의 연소 시스템에서 분탄을 연소하는 중에 연공비를 조절하는 장치 및 방법에 관한 것이다. 본 발명의 목적은 연소 공기와 캐리어 공기의 양을 측정함에 있어, 유지보수가 필요없는 공기량 측정 장치와 결합된, 신뢰도가 높은 공기량 조절 방법을 제공하는 것이다. 본 발명에 의하면, 상기 본 발명의 목적은 연소 공기 유동 방향을 따라 시리즈로 배치되어 있는 센서들 상의 마찰 전기 효과를 측정하는, 상관 측정 방법에 따라 연소 공기량을 측정하여, 궁극적으로는 연소 공기의 유속을 측정하는 측정 장치에 의해 달성된다. 이를 위해 20 내지 200 ㎛ 직경의 미세 입자들이 흡입된 신선 공기 ㎥ 당 0.1 mg 내지 10 mg 도입된다. 흡입된 신선 공기 내로의 미세 입자들의 도입은 실질적으로 석탄 화력 발전소의 연소 시스템의 시동 단계에서 이루어진다. 캐리어 공기량의 측정은, 캐리어 공기의 유동 방향으로 캐리어 공기 유동 내에 시리즈로 배치되어 있는 센서들 상에서 일어나는 마찰 전기 효과를 측정하는 상관 측정 장치에 이루어지는 것이 바람직하다.
Abstract:
PURPOSE: An apparatus is provided to remarkably increase the pulverized degree of coal and to be easily installed in a pulverizer without replacing a cover. CONSTITUTION: Coal is inputted into a pulverizer though a pipe. A pulverized coal separator(300) is composed of an upper portion(310) where many wing plates are arranged in a cut head cone shape, a lower portion(320) where many wing plates are arranged in a hollow cylindrical shape and a bottom portion(330) forming a through hole(331) in the center. The coal is pulverized and the separator separates a pulverized coal. The separated coal dust is discharged through a vent pipe. The separator contains two pair of wings each is slant in the opposite side for a smoother separation.
Abstract:
A device and method for controlling fuel-air ratio during combustion of ground in a coal power plant, including pneumatic delivery of ground coal to the burners and feeding combustion air to burners while controlling the combustion air and the amount of carrier air. A high reliability of control combined with low maintenance of the air mass measurement devices is achieved. This is achieved by a measurement device for measuring the amount of combustion air which, according to correlation measurement, evaluates the triboelectric effects on sensors. Between 0.1 mg and 10 mg of fine-grained particles of a diameter between 20 μm and 200 μm are introduced per m3 air into suctioned fresh air, which is carried out during the starting of the firing system. This is done by correlation measurement that evaluates triboelectric effects on sensors, arranged in series in carrier air stream in direction of flow of the carrier air.
Abstract:
PROBLEM TO BE SOLVED: To provide a biomass pulverizing device and a biomass/coal co-combustion system, allowing an efficient discharge of pulverized biomass powder to the outside.SOLUTION: This biomass pulverizing device includes: a pulverizing device body 13 having a raw material supply pipe 12 supplying biomass material 11 from above in the vertical direction; a pulverizing table 14 whereon the supplied biomass material 11 is placed; a drive part 15 rotationally driving the pulverizing table 14; pulverizing rollers operating in conjunction with the rotation of the pulverizing table 14 and pulverizing the biomass material 11 by pressing force; and a blast means forming an upward flow upward from below on the outer circumferential side of the pulverizing table 14, and jetting a carriage gas 18 airflow-carrying the pulverized biomass powder 17. The biomass pulverizing device further includes: an erected weir 14a formed on the periphery of the pulverizing table 14; and a first extended weir 31 which is formed with a plurality of slits, is extended from the pulverizing device body 13 side of lower parts of the pulverizing rollers, and forms a prescribed gap to the upper face side of the erected weir 14a.
Abstract:
In embodiments of the present invention improved capabilities are described for a system and method for briquetting solid fuel before or after treatment with electromagnetic energy. In the system and method, solid fuel is transported through a continuous feed solid fuel treatment facility, treated using electromagnetic energy, and briquetted after treatment.
Abstract:
A fossil-fuel-fired system, which includes an emissions-control-agent dispenser, a furnace, an emissions monitor and, optionally, a controller, is disclosed. The emissions-control-agent dispenser provides a prescribed amount of organic-emissions-control agent, such as, for example, an opacity-control agent to the fossil-fuel-fired system. The furnace includes an exhaust communicating with the atmosphere. The emissions monitor is capable of measuring at least one property of the flue-gas communicated through the exhaust to the atmosphere. For example, when an organic-emissions-control agent is an opacity-control agent, the emissions monitor has the capability of at least measuring opacity. When included, the controller communicates with at least the emissions-control-agent dispenser and the emissions monitor.
Abstract:
Provided is a novel method and system to separate magnetically non-susceptible impurities from coal intended for combustion, and it includes the removal of such impurities together with magnetically susceptible impurities that are collocated within the same lump of coal, prior to the combustion of the coal, by the use of the magnetic properties of the magnetically susceptible impurities. The described subject matter is based on the fact that the former impurities are normally collocated in the same lumps of coal as the latter, especially as far as pyrite and cinnabar are concerned, provided the lumps have not been liberated, in particular, they meet the requirement that at least 50% by mass of the coal lumps should be at least 2 mm in maximum dimension.
Abstract:
A fossil-fuel-fired system, which includes an emissions-control-agent dispenser, a furnace, an emissions monitor and, optionally, a controller, is disclosed. The emissions-control-agent dispenser provides a prescribed amount of organic-emissions-control agent, such as, for example, an opacity-control agent to the fossil-fuel-fired system. The furnace includes an exhaust communicating with the atmosphere. The emissions monitor is capable of measuring at least one property of the flue-gas communicated through the exhaust to the atmosphere. For example, when an organic-emissions-control agent is an opacity-control agent, the emissions monitor has the capability of at least measuring opacity. When included, the controller communicates with at least the emissions-control-agent dispenser and the emissions monitor.