[특허]Sailing craft stable when airborne

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Sailing craft stable when airborne

국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B63B-035/00
미국특허분류(USC)	114/039.31; 114/272
출원번호	US-0002889 (2001-12-05)
발명자 / 주소	Stevens, Mac
인용정보	피인용 횟수 : 7 인용 특허 : 24

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A wind propelled vehicle comprising: (a) an assembly of airfoils fixedly joined; (b) all-moveable rudder and horizontal stabilizer, or suitable substitute, for aerodynamic yaw and pitch control; and (c) pontoons and hydrofoils, skis, skates, runners or wheels. The vehicle is wind-propelled by controlling the angle of the relative wind to produce a sideways lift force on the airfoil assembly and controlling the angle of the pontoons, etc. to use that force to cause forward motion. Airborne operation is achieved by changing the angle of the relative wind to produce an upward lift force on the airfoil assembly. Water rudder is absent. Orientation is always controlled aerodynamically. a gas flow direction, the raw materials are calcined in a pre-calcination stage, and fired in a sintering zone of a rotary kiln into cement clinker, which is cooled in a downstream cooler, the rotary kiln waste gas flow supplied with fuel in the pre-calcination stage being used for the pre-calcination of the raw meal, comprising the further steps of directing an entire waste gas flow from the heat exchange line through an oxidation zone downstream of the heat exchange line in the gas flow direction, the oxidation zone having an excess of oxygen and open flames provided by an afterburner, in order to assure burnout or oxidation of pollutant substances CO, S2-,VOC (volatile organic carbon) such as hydrocarbons caused by a respectively high level of TOC (total organic carbon) and/or sulfides in the raw materials, which otherwise result in high emissions of pollutants. 2. The method of claim 1, including the step of feeding the waste gas flow of the heat exchanger line to waste gas conditioning through a scrubber. 3. The method of claim 2, wherein the burnout of pollutants of the waste gas is carried out in the oxidation zone, which is provided at least one of upstream and downstream of the scrubber in the gas flow direction. 4. The method of claim 1, including the step of directing the waste gas into an afterburner duct provided downstream of the afterburner where the waste gas remains with a residence time of about 1.5 seconds and is swirled in order to assure a complete burnout and complete oxidation of pollutants of the waste gas. 5. The method of claim 4, including the step of adding fresh air to the waste gas in the afterburner duct downstream of the afterburner in order to cool the waste gas and to constantly maintain the oxygen excess. 6. The method of claim 1, wherein an alternative fuel is burned in the afterburner. 7. The method of claim 6, wherein the alternative fuel is waste oil. 8. The method of claim 1, including the step of adjusting the afterburner in such a manner that a waste gas temperature is within the range from 450° C. to 680° C. when the waste gas leaves the oxidation zone. 9. The method of claim 1, including the step of lowering a temperature of the waste gas leaving the heat exchange line before the waste gas reaches the afterburner. 10. The method of claim 2, including the step of matching a cooling capacity of the scrubber to a temperature rise of the waste gas caused by the afterburner. 11. The method of claim 1, wherein a crusher and drier plant is installed downstream of the afterburner in the gas flow direction and including the step of controlling a waste gas temperature that is required for a crushing and drying by adjusting a temperature of the afterburner. 12. An apparatus for thermal processing of powder raw materials in a manufacture of cement clinker from raw meal, comprising at least one heat exchange line including a cyclone heat exchange system with a series of cyclone stages through which waste gas of a rotary kiln flows in a gas direction for preheating raw materials which flow in an opposite material direction, a pre-calcination stage for calcining the raw materials downstream of the cyclone heat exchange system in the material direction, a sintering zone of a rotary kiln where the calcined materials are fired into cement clinker downstream of the pre-calcination stage in the material direction, a cooler in which the cement clinker are cooled downstream of the sintering zone in the material direction, a supply of fuel in the rotary kiln waste gas flow through the pre-calcination stage to be used for the pre-calcination of the raw meal, and an oxidation zone downstream of the cyclone heat exchange system in the gas direction having an excess of oxygen and open flames provided by an afterburner through which the entire waste gas flow is directed. 13. The apparatus of claim 12, including at least one of a scrubber and a dust filter located downstream in the gas direction of the cyclone heat exchange system. 14. The apparatus of claim 13, wherein the oxidation zone is located upstream, in the gas direction, of the at least one of the scrubber and the dust filter. 15. The apparatus of claim 12, including a fresh air line that connects to a waste gas duct downstream of the afterburner in the gas direction. 16. The apparatus of claim 12, including an afterburner duct immediately downstream in the gas direction of the afterburner, a length of the afterburner duct corresponding to a residence time of the waste gas in the afterburner duct of about 1.5 seconds. 17. The apparatus of claim 16, including a mixing or swirling chamber provided in the afterburner duct. 18. The apparatus of claim 12, including a conventional heat exchange line as an extension of the cyclone stages. 0; US-4640681, 19870200, Steinbiss et al., 432/014; US-4913742, 19900400, Kwech, 106/100; US-4960577, 19901000, Torbov et al., 423/242; US-5349910, 19940900, Hundebol, 110/346; US-5365866, 19941100, Von Seebach et al., 110/345; US-5782188, 19980700, Evans et al., 110/346; US-5800610, 19980900, Jons, 106/743; US-6213764, 20010400, Evans, 432/106

이 특허에 인용된 특허 (24)

이 특허를 인용한 특허 피인용횟수: 7

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Sailing craft stable when airborne

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Sailing craft stable when airborne

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이 특허에 인용된 특허 (24)

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