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    • 7. 发明授权
    • Dust collecting method
    • 集尘方式
    • US06228336B1
    • 2001-05-08
    • US09373579
    • 1999-08-13
    • Yasuo KatsukiTakashi OhnishiShozo KanekoAkira HashimotoYuichi FujiokaKikuo TokunagaToshihiko Setoguchi
    • Yasuo KatsukiTakashi OhnishiShozo KanekoAkira HashimotoYuichi FujiokaKikuo TokunagaToshihiko Setoguchi
    • B01J800
    • B01D50/002B01D53/508
    • A dust collecting apparatus and method for dedusting a Ca-containing gas using a ceramics filter is provided, in which a filter differential pressure elevation rate is suppressed. A desulferizing agent 103 and a mineral 106 containing MgO are supplied via a hopper 13, 15 a valve 14 and a feeder 16 into a pressurized fluidized-bed combustion furnace 1 together with coal 101 and air 102. A combustion gas 201 is dedusted by a cyclone 2 to become a combustion gas 301, the combustion gas 301 enters a filter container 3a, 3b having a ceramics filter 31a, 31b and is further dedusted. A combustion gas 401 which is dedusted is supplied into a gas turbine 4 to generate power, and combustion gas 501 heats a waste heat recovery boiler 5 which in turn drives a steam turbine 7. The mineral 106 containing MgO is added in the combustion gas 301 which flows in the ceramics filter 31a, 31b. Thereby MgO is added to the combustion gas so that the filter differential pressure elevation rate can be suppressed. The more MgO that is supplied, the greater the effect becomes, and an operation stop due to the differential pressure elevation is eliminated.
    • 提供一种使用陶瓷过滤器除尘含Ca气体的集尘装置和方法,其中抑制了过滤器差压升高速率。 脱硫剂103和含有MgO的矿物106通过料斗13,15,阀14和进料器16与煤101和空气102一起供应到加压流化床燃烧炉1中。燃烧气体201通过 旋风分离器2成为燃烧气体301,燃烧气体301进入具有陶瓷过滤器31a,31b的过滤容器3a,3b,并进一步除尘。 将除尘的燃烧气体401供给燃气轮机4发电,燃烧气体501加热余热回收锅炉5,废热回收锅炉5又驱动蒸汽轮机7.含有MgO的矿物106加入燃烧气体301 其在陶瓷过滤器31a,31b中流动。 由此,将MgO添加到燃烧气体中,从而可以抑制过滤器差压提升率。 供给的MgO越多,效果越大,并且消除由于差压升高引起的操作停止。
    • 9. 发明授权
    • Calcium sulfide oxidation method
    • 硫化钙氧化法
    • US06245314B1
    • 2001-06-12
    • US09140657
    • 1998-08-26
    • Yoshihiko TsuchiyamaYuichi FujiokaToshihiko SetoguchiKatsuhiko ShinodaKenji TagashiraShigeyasu IshigamiYoshinori Kobayashi
    • Yoshihiko TsuchiyamaYuichi FujiokaToshihiko SetoguchiKatsuhiko ShinodaKenji TagashiraShigeyasu IshigamiYoshinori Kobayashi
    • C01F1146
    • B01J8/1809B01D53/73B01J8/1836B01J8/34B01J8/386B01J2208/00008B01J2208/0084C01F11/46Y10S423/16
    • CaS oxidation has CaS particles oxidized into CaSO4 completely as far as to the interior of the particle. The interior of an oxidation apparatus 1 is partially partitioned by a partition 22 to thereby form a first fluidized bed 20 on the inner side, a second fluidized bed 21 on the outer side and a space portion 23 thereabove. A heat exchanger 27 having a baffle plate is disposed on the inner side of the partition 22 and an in-bed heat exchanger 33 is disposed on the outer side of same. A desulfurizing product-containing fine powder 204 and coarse powder 205 and a mixture gas 206 of nitrogen, oxygen and steam are supplied into the second fluidized bed 21. Also, coal 200 and coal char 201 are supplied into the first fluidized bed 20 from below. Of the particles 304 oxidized in the second fluidized bed 21 and supplied into the first fluidized bed 20 from below with the flow of a mixture gas 208, the fine powder entrains into the space portion 23 as entrained particles 300 and a major part thereof falls down into the second fluidized bed 21 as particles 207. The completely oxidized particles are discharged as discharged ash 303 and entrained ash 302.
    • CaS氧化将CaS颗粒完全氧化成CaSO 4直至颗粒内部。 氧化装置1的内部被隔板22部分地隔开,从而在内侧形成第一流化床20,在外侧形成第二流化床21,在其上形成空间部23。 具有挡板的热交换器27设置在隔板22的内侧,并且在其外侧设置有床内热交换器33。 将含脱硫产物的细粉末204和粗粉末205以及氮气,氧气和蒸汽的混合气体206供给到第二流化床21中。另外,将煤200和煤炭201从下方供给到第一流化床20 。 在第二流化床21中被氧化并从下方供入混合气体208的第一流化床20的颗粒304中,细粉末作为夹带颗粒300进入空间部分23,并且其主要部分下降 作为颗粒207进入第二流化床21.完全氧化的颗粒作为排出的灰分303和夹带的灰分302排出。
    • 10. 发明授权
    • Coal gasification power generator
    • 煤气化发电机
    • US5765365A
    • 1998-06-16
    • US594407
    • 1996-01-31
    • Yuichi FujiokaKimishiro TokudaToshimitsu IchinoseYoshihiko TsuchiyamaFumiya NakashimaShigeyasu IshigamiSatoshi Uchida
    • Yuichi FujiokaKimishiro TokudaToshimitsu IchinoseYoshihiko TsuchiyamaFumiya NakashimaShigeyasu IshigamiSatoshi Uchida
    • F01K23/06F02C3/28
    • F01K23/067F01K23/068Y02E20/18Y02E20/344
    • In a coal gasification power generator, coal gas 500 obtained by gasifying a coal 100 by a gasifying furnace is introduced into a desulfurization furnace in which the coal gas 500 is desulfurized by limestone 400. A coal gas 501 after desulfurization is burned by a combuster 5 after it has passed through a dust removing unit 3 so that high temperature combustion gas 800 is supplied to a gas turbine. The gas turbine 7 drives a power generating unit. Exhaust gas 801 from the gas turbine is supplied to an exhaust gas boiler 8. Char 60a produced in the gasifying furnace and limestone 60b containing CaS emitted from the desulfurization furnace are burned in an oxidation furnace, and by using the resultant combustion gas, water vapor introduced from the exhaust gas boiler 8 is heated by a heat exchanger, and thereafter it is supplied to the gasifying furnace as a gas. With the above construction, chemical energy possessed by the coal is effectively converted into electric energy, and also the rate of desulfurization of coal gasifying gas is improved thereby reducing emitted sulfur oxide.
    • 在煤气化发电机中,将通过气化炉气化煤100获得的煤气500引入到通过石灰石400将煤气500脱硫的脱硫炉中。通过燃烧器5将脱硫后的煤气501燃烧 在通过除尘单元3之后,将高温燃烧气体800供给到燃气轮机。 燃气轮机7驱动发电单元。 来自燃气轮机的废气801被供给到废气锅炉8.在气化炉中生成的Char 60a和从脱硫炉排出的含有CaS的石灰石60b在氧化炉中燃烧,通过使用所得到的燃烧气体, 从废气锅炉8引入的热交换器被加热,之后作为气体供给到气化炉。 通过上述建设,煤炭所具有的化学能有效转化为电能,提高了煤气化气的脱硫率,减少了排放的硫氧化物。