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    • 2. 发明申请
    • Method for treatment of spent liquor
    • 废液处理方法
    • US20050284593A1
    • 2005-12-29
    • US10519350
    • 2002-07-04
    • Kari SundmanMarkku RaikoMika RepkaJari Sutinen
    • Kari SundmanMarkku RaikoMika RepkaJari Sutinen
    • D21C11/12F23G7/04
    • D21C11/127D21C11/125F23G7/04F23G2201/304F23G2209/101
    • Method for treatment of spent liquor at a pulp mill, in which method at least a part of the spent liquor flow (10) arriving from the evaporation plant is taken to a pyrolysis reactor (1), wherein it is pyrolysed at a temperature of 300-800° C. in order to separate evaporable compounds (12) from coke (11) remaining in a solid state. The pyrolysis products (11), which are gases or liquids, may be used as fuel or they may be processed further. The coke (11) resulting from the pyrolysis is burnt in a soda recovery boiler (3) or in a gasification reactor (2) to regenerate cooking chemicals. The method is suitable for recovery of chemicals and energy both in sulphate and sulphite processes and also in cooking methods based on organic solvents.
    • 在纸浆厂处理废液的方法,其中至少一部分从蒸发设备到达的废液流(10)被送入热解反应器(1),其中它在300℃的温度下热解 -800℃,以便将可蒸发化合物(12)与保持固体状态的焦炭(11)分离。 作为气体或液体的热解产物(11)可以用作燃料,或者可以进一步加工。 由热解产生的焦炭(11)在苏打回收锅炉(3)或气化反应器(2)中燃烧以再生烹饪化学品。 该方法适用于在硫酸盐和亚硫酸盐过程中以及基于有机溶剂的烹饪方法中回收化学品和能量。
    • 4. 发明授权
    • Integration construction between a boiler and a steam turbine and method in preheating of the supply water for a steam turbine and in its control
    • 锅炉和蒸汽轮机之间的整合结构以及用于蒸汽轮机的供水预热及其控制的方法
    • US06813888B2
    • 2004-11-09
    • US10250390
    • 2003-10-24
    • Markku Raiko
    • Markku Raiko
    • F01K734
    • F22D1/40
    • The present invention concerns an integration construction between a steam boiler provided with a combustion chamber and a steam turbine. The steam is conducted from the steam boiler (10) along a connector to the steam turbine (11) for rotating an electric generator (G) producing electricity. The supply water circulated via the steam boiler (10) is vaporized in vaporizer (190) located in the steam boiler (10) and superheated in a superheater (120). The supply water is conducted into the boiler through an economizer (20) acting as a heat exchanger, in which heat is transferred from the flue gases of the boiler into the supply water. The economizer (20) is provided with at least two sections, comprising at least one first economizer section (20a1) and at least one second economizer section (20a2). The supply water preheated with bled steams of the steam turbine is conducted in the steam boiler (10) further from the economizer (20) to the vaporizer and the superheater and therethrough, in the form of steam, to the steam turbine. A connector (19) leading to the economizer sections (20a1, 20a2) comprises a branch point (D1) to a by-pass connector (21) of supply water, whereby the economizer section (20a1) can be bypassed by at least part of the supply water flow. The invention also concerns a method in preheating of the supply water for the steam turbine and in its control.
    • 8. 发明授权
    • Integration construction between a boiler and a steam turbine and method in preheating of the supply water for a steam turbine and in its control
    • US06951106B2
    • 2005-10-04
    • US10250322
    • 2001-01-02
    • Markku Raiko
    • Markku Raiko
    • F22D1/40F01K7/34
    • F22D1/40
    • The present invention concerns an integration construction between a steam boiler provided with a combustion chamber and a steam turbine. The steam is conducted from the steam boiler (10) along a connector to the steam turbine (11) for rotating an electric generator (K) producing electricity. The supply water circulated via the steam boiler (10) is vaporized in a vaporizer (190) located in the steam boiler (10) and superheated in a superheater (120). The supply water is conducted into the boiler through an economizer (20) acting as a heat exchanger, where heat is transferred from the flue gases of the boiler into the supply water. The economizer (20) is provided with at least two sections, comprising at least one first economizer section (20a1) and at least one second economizer section (20a2). The supply water is conducted from the first economizer section (20a1) to a supply water preheater formed from a heat exchanger (14), where thermal energy is transferred from bled steams of the steam turbine either directly or via a medium, advantageously water, into the supply water. The supply water preheated with bled steams of the steam turbine is conducted in the steam boiler (10) to the second economizer section (20a2) and further to the vaporizer (190) and the superheater (120) and therethrough, in the form of steam, to the steam turbine. In the integration construction, the temperature of the supply water is raised continuously as the supply water is flowing in the first economizer section (20a1) and from the first economizer section (20a1) to the supply water preheater (14) and threthrough, to the second economizer section (20a2). The connector (13a1.1) leading to the supply water preheater (14) comprises a valve (21) for controlling the bled-steam.
    • 10. 发明授权
    • Method and device in the cooling of the circulating material in a
fluidized-bed boiler
    • 在流化床锅炉中冷却循环材料的方法和装置
    • US5660148A
    • 1997-08-26
    • US199263
    • 1994-02-24
    • Markku Raiko
    • Markku Raiko
    • F23C10/08F22B31/00F23C9/00F23C10/02F23C10/28F23J15/02F23C11/02
    • F23C10/02F22B31/0084F23C10/28F23C9/003F23J15/027
    • The invention concerns a method and a device in the cooling of the circulating material in a fluidized-bed boiler. In the method the fuel (A) is introduced into the circulating-powder combustion chamber (10) of the fluidized-bed boiler into the lower part of the circulating-powder combustion chamber (10) and an inert circulating material, which contains a proportion of unburned powdered fuel (A), is circulated from the top part of the circulating-powder combustion chamber (10) to the lower part of the circulating-powder combustion chamber (10). The flue gases are passed in the method from the powder separator (13) along the duct (15) into the exhaust-gas boiler (16), through whose heat exchanger (16a) thermal energy of the flue gases is transferred further to other useful use. In the method, part of the cooled flue gases are recirculated along the duct (20) into the circulating material and, by means of the cooled flue gases, the capacity of cooling of the fluidized-bed furnace is regulated by affecting the temperature of the circulating material.
    • PCT No.PCT / FI92 / 00238 Sec。 371日期1994年2月24日 102(e)1994年2月24日PCT PCT 1992年9月9日PCT公布。 公开号WO93 / 05340 日期1993年3月18日本发明涉及在流化床锅炉中冷却循环物质的方法和装置。 在该方法中,将燃料(A)引入流化床锅炉的循环粉末燃烧室(10)进入循环粉末燃烧室(10)的下部和含有比例的惰性循环材料 未燃烧粉末燃料(A)的循环粉末燃烧室(10)的上部循环至循环粉末燃烧室(10)的下部。 烟道气以方法从粉末分离器(13)沿管道(15)通入废气锅炉(16),通过其将烟道气的热能进一步转移到其它有用的 使用。 在该方法中,一部分冷却的烟道气沿管道(20)再循环进入循环材料,并且通过冷却的烟道气,通过影响流化床炉的温度来调节流化床炉的冷却能力 循环材料。