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1. 发明申请

WO1993011297A1 METHOD OF RECOVERING ENERGY FROM WASTE LIQUORS FROM PULP PROCESSES 审中-公开
标题翻译：从废纸处理中回收废物的能量的方法
公开(公告)号：WO1993011297A1
公开(公告)日：1993-06-10
申请号：PCT/FI1992000315
申请日：1992-11-25
申请人： A. AHLSTROM CORPORATION , KUUSIO, Marjo , NIKKANEN, Samuli
发明人： A. AHLSTROM CORPORATION
IPC分类号： D21C11/12
CPC分类号： D21C11/06 , D21C11/125 , F01K23/067 , Y02E20/18 , Y02P70/24
摘要： Method of recovering energy from waste liquors from pulp processes, wherein the waste liquor is burned in a waste liquor recovery boiler (18) and energy is recovered from the flue gases by producing saturated or partially superheated steam in the recovery boiler. According to the invention, a portion of the waste liquor is gasified in a gasifying reactor (16) in order to produce combustion gas. The combustion gas is burned in a separate superheating boiler, in which the steam produced in the recovery boiler is superheated.
摘要翻译：从废纸回收锅炉（18）中废弃废液中回收废液的能量的方法，通过在回收锅炉中产生饱和或部分过热的蒸汽从废气中回收能量。根据本发明，一部分废液在气化反应器（16）中气化，以产生燃烧气体。燃烧气体在单独的过热锅炉中燃烧，其中回收锅炉中产生的蒸汽过热。

2. 发明申请

WO1992018690A1 METHOD OF RECOVERING ENERGY FROM WASTE LIQUORS FROM PULP PROCESSES 审中-公开
标题翻译：从废纸处理中回收废物的能量的方法
公开(公告)号：WO1992018690A1
公开(公告)日：1992-10-29
申请号：PCT/FI1992000092
申请日：1992-03-31
申请人： A. AHLSTROM CORPORATION , NIKKANEN, Samuli
发明人： A. AHLSTROM CORPORATION
IPC分类号： D21C11/12
CPC分类号： D21C11/12 , D21C11/06 , Y02P70/24
摘要： Method of recovering energy from waste liquors from pulp processes, wherein the waste liquor is burned in a waste liquor recovery boiler and energy is recovered from the flue gases, which are formed by producing saturated or partially superheated steam in the recovery boiler. According to the invention, a portion of the waste liquor is pressure heat treated to release gases and/or treated in a liquid phase in a pressurized process for converting the waste liquor into a fraction containing an oleaginous fuel and a fraction containing inorganic components. The waste liquor is thereby treated for instance in a hydrogenation process. The waste liquor from the pressure heat treatment and/or the waste liquor fraction containing inorganic components is burned in the recovery boiler. The released gases and/or the fraction containing oleaginous fuel is burned in a separate superheating boiler, in which the steam produced in the recovery boiler is superheated.
摘要翻译：从废纸回收废液中回收来自纸浆工艺的废液的方法，其中废液在废液回收锅炉中燃烧并从废气中回收能量，废气通过在回收锅炉中产生饱和或部分过热蒸汽而形成。根据本发明，一部分废液经加压热处理以在用于将废液转化为含有含油燃料的馏分和含有无机成分的馏分的加压方法中以液相释放和/或处理。因此，例如在氢化过程中处理废液。来自压力热处理的废液和/或含有无机成分的废液馏分在回收锅炉中燃烧。释放的气体和/或含有油质燃料的馏分在单独的过热锅炉中燃烧，其中回收锅炉中产生的蒸汽过热。

3. 发明申请

WO1998018199A1 ELECTRONIC POWER CONTROL HAVING A SWITCHED-MODE POWER SUPPLY 审中-公开
标题翻译：具有开关电源的电子电源控制
公开(公告)号：WO1998018199A1
公开(公告)日：1998-04-30
申请号：PCT/FI1997000630
申请日：1997-10-17
申请人： A. AHLSTROM CORPORATION , SAIRANEN, Martti , SALONEN, Olli
发明人： A. AHLSTROM CORPORATION
IPC分类号： H02M07/538
CPC分类号： H05B39/045 , H02M7/53803 , Y02B20/142
摘要： The present invention relates to an electronic power control with a switched-mode power supply, especially for a dimmer application. The power control comprises a half bridge control unit (2) having an oscillator circuit (5) and two control units (6, 7) and at least two switching elements, such as field effect transistors (8, 9) being preferably arranged in a half bridge configuration and which are connected by their gates to the outputs of the control units (6, 7) of the half bridge control unit (2). The switching time of the switching elements (8, 9), and thereby also the electrical power fed to the load (K), can be changed by changing the duty cycle of the oscillator circuit (5) output voltage. The half bridge control unit (2) is provided with terminals (5a, 5b) for connecting external components, especially a resistor and a capacitor thereto for setting the operating frequency of the half bridge control unit. According to the invention, the operating frequency terminals (5a, 5b) of the half bridge control unit (2) are provided with an active resistor circuit (14) and a capacitor (14), known as such. The active resistor circuit (14) comprises two adjustable resistors (16, 17), the first (16) of which is arranged to operate when the capacitor (15) is being charged and the second (17) of which is arranged to operate when the capacitor (15) is being discharged.
摘要翻译：本发明涉及具有开关式电源的电子功率控制，特别是用于调光器应用。功率控制包括具有振荡器电路（5）和两个控制单元（6,7）的半桥控制单元（2），并且至少两个开关元件，例如场效应晶体管（8,9）优选地布置在半桥配置，并通过其门连接到半桥控制单元（2）的控制单元（6,7）的输出端。可以通过改变振荡电路（5）的输出电压的占空比来改变开关元件（8,9）的开关时间，从而也可以改变馈送到负载（K）的电力。半桥式控制单元（2）设置有用于连接外部部件的端子（5a，5b），特别是用于设定半桥式控制单元的工作频率的电阻器和电容器。根据本发明，半桥控制单元（2）的工作频率端子（5a，5b）设置有有源电阻电路（14）和电容器（14）。有源电阻电路（14）包括两个可调电阻器（16,17），其中第一（16）被布置成在电容器（15）被充电时工作，并且其中第二（17）被布置成在电容器15被放电。

4. 发明申请

WO1998018197A1 AN IMPROVED SWITCHED-MODE POWER SUPPLY 审中-公开
标题翻译：改进的开关电源
公开(公告)号：WO1998018197A1
公开(公告)日：1998-04-30
申请号：PCT/FI1997000631
申请日：1997-10-17
申请人： A. AHLSTROM CORPORATION , SAIRANEN, Martti , SALONEN, Olli
发明人： A. AHLSTROM CORPORATION
IPC分类号： H02M03/335
CPC分类号： H02M1/4208 , Y02B70/126 , Y02P80/112
摘要： The invention relates to switched-mode power supplies, especially to switched-mode power supplies having a power factor correction circuit. In a system according to the invention the power factor correction system meant to be used in the high-voltage primary side of the power supply is used in the low-voltage secondary side of the power supply. Thus, the components of the correction circuit can be rated for low voltage instead of high voltage, and the stabilization of the power supply can be entirely realized on the low side of the power supply.
摘要翻译：本发明涉及开关电源，特别涉及具有功率因数校正电路的开关式电源。在根据本发明的系统中，用于电源的高电压初级侧的功率因数校正系统用于电源的低压二次侧。因此，校正电路的分量可以被代替高电压而被评定为低电压，并且可以在电源的低侧完全实现电源的稳定。

5. 发明申请

WO1996026315A1 A SCREEN HAVING INCLINED SLOTS FOR USE IN A CONTINUOUS DIGESTER 审中-公开
标题翻译：具有连续使用的插槽的屏幕
公开(公告)号：WO1996026315A1
公开(公告)日：1996-08-29
申请号：PCT/FI1996000104
申请日：1996-02-22
申请人： A. AHLSTROM CORPORATION , HERNESNIEMI, Lasse
发明人： A. AHLSTROM CORPORATION
IPC分类号： D21C07/00
CPC分类号： D21D5/16 , D21C7/00
摘要： The present invention relates to a screen primarily intended to be used for passing liquid through a layer of pulp. The invention is advantageously employed in removing cooking liquid when producing chemical cellulose pulp or paper pulp in a continuous digester. It is characteristic of the screen that it comprises a frame (12) and a screen plate (14) provided with slots and secured to the frame and that the inclination angle alpha of the slots relative to the horizontal direction is 30 - 60 degrees.
摘要翻译：本发明涉及一种主要用于将液体通过一层纸浆的筛网。本发明有利地用于在连续蒸煮器中生产化学纤维素纸浆或纸浆时除去蒸煮液。屏幕的特征在于它包括一个框架（12）和一个设置有狭槽并固定在框架上的屏板（14），并且槽相对于水平方向的倾斜角α为30-60度。

6. 发明申请

WO1996023929A1 BLEACHING PULP WITH PEROXIDE AT SUPERATMOSPHERIC PRESSURE AND IN MULTIPLE STAGES 审中-公开
标题翻译：在超级压力和多个阶段过氧化氢漂白浆
公开(公告)号：WO1996023929A1
公开(公告)日：1996-08-08
申请号：PCT/FI1995000138
申请日：1995-03-14
申请人： A. AHLSTROM CORPORATION , HENRICSON, Kaj , GREENWOOD, Brian , SVEDIN, Björn , PIKKA, Olavi
发明人： A. AHLSTROM CORPORATION
IPC分类号： D21C09/16
CPC分类号： D21C9/163
摘要： Cellulose pulp is bleached with peroxide under superatmospheric pressure in two (or more) stages, with removal of oxygen and reaction gases from the pulp between the stages, About 5-20 Kg/admt hydrogen peroxide is intimately mixed with the pulp and then introduced into a first pressurized vessel in which the pressure is between about 5-15 bar and the temperature between about 80-120 DEG C. Bleaching takes place in the first vessel for about 15-60 minutes while oxygen and reaction gases are formed, and then at least 20 % of (and preferably subtantially all of) the oxygen and reaction gases are removed from the pulp before complete consumption of all of the peroxide. Then the pulp is preferably introduced into a second vessel, additional peroxide, alkali, and steam can be added, and peroxide bleaching continues at a pressure of about 1.1-10 bar and at a temperature of about 90-120 DEG C for between about 30-200 minutes, during which oxygen and reaction gases are formed anew. The majority of the newly formed oxygen and reaction gases -- in fact subtantially all of them -- are separated out, typically upon discharge of the pulp from the second vessel.
摘要翻译：纤维素纸浆在两个（或多个）阶段的超大气压下用过氧化物漂白，除去来自阶段之间的纸浆的氧气和反应气体，约5-20Kg / adm过氧化氢与纸浆密切混合，然后引入第一加压容器，其中压力在约5-15巴之间，温度在约80-120℃之间。漂白在第一容器中发生约15-60分钟，同时形成氧气和反应气体，然后在在完全消耗所有过氧化物之前，至少20％（并且优选地是全部）氧和反应气体从纸浆中除去。然后将纸浆优选引入第二容器中，可以加入额外的过氧化物，碱和蒸汽，并且过氧化物漂白在约1.1-10巴的压力和约90-120℃的温度下继续进行约30 -200分钟，在此期间重新形成氧气和反应气体。大多数新形成的氧和反应气体 - 实际上基本上都是它们 - 被分离出来，通常在从第二容器排出纸浆时。

7. 发明申请

WO1996013690A1 FURNACE SUPERHEATER AND A FLUIDIZED BED REACTOR PROVIDED WITH A FURNACE SUPERHEATER 审中-公开
标题翻译：炉子超级加热器和提供一个FURNACE超级加热器的流化床反应器
公开(公告)号：WO1996013690A1
公开(公告)日：1996-05-09
申请号：PCT/FI1995000583
申请日：1995-10-23
申请人： A. AHLSTROM CORPORATION , JÄNTTI, Pertti , SEPPONEN, Taisto
发明人： A. AHLSTROM CORPORATION
IPC分类号： F22G03/00
CPC分类号： F28F1/22 , F22B31/0084 , F22B37/107 , F22G3/00 , F28D7/0041 , F28F2275/14
摘要： The present invention relates to a furnace superheater having a number of tube elements arranged relative to each other in such a way that they form a planar surface and in which the tube elements are mechanically arranged. The superheater elements are preferably rectangular of their cross-sectional profile and they are attached to each other by means of a groove or the like and a protrusion or the like which have a substantially similar profile. The present invention also relates to a circulating bed reactor provided with a furnace superheater.
摘要翻译：本发明涉及一种炉过热器，其具有相对于彼此布置的多个管元件，使得它们形成平面，并且其中管元件机械地布置。过热器元件优选地是它们的横截面轮廓的矩形，并且它们通过凹槽等彼此附接，并且具有基本相似的轮廓的突起等。本发明还涉及一种设有炉过热器的循环床反应器。

8. 发明申请

WO1995029747A1 METHOD AND ARRANGEMENT FOR RECOVERING FIBER 审中-公开
标题翻译：回收光纤的方法和布置
公开(公告)号：WO1995029747A1
公开(公告)日：1995-11-09
申请号：PCT/FI1995000232
申请日：1995-04-27
申请人： A. AHLSTROM CORPORATION , KARVONEN, Vesa
发明人： A. AHLSTROM CORPORATION
IPC分类号： B01D37/02
CPC分类号： D21F1/66 , B01D33/073 , B01D33/60 , B01D33/705 , B01D37/02 , B01D2201/282 , Y10S210/928
摘要： The present invention relates to a method and system for recovering fibres by means of a filter surface (1) from white water (2), in which auxiliary pulp (3) is added to the white water to recover fines. The filter surface is at first brought into contact with pulp of higher consistency containing more auxiliary pulp and a filtering fibre layer having longer fibres than the fines is formed from the auxiliary pulp onto the filter surface. Subsequently, the filter surface is transferred to a zone containing more white water. The fibre layer filters fines and other fine particles from the white water.
摘要翻译：本发明涉及一种借助于白水（2）的过滤器表面（1）回收纤维的方法和系统，其中将辅助纸浆（3）加入到白水中以回收细粉。首先，过滤表面与含有更多辅助纸浆的较高稠度的纸浆和具有比由辅助纸浆形成到过滤表面上的细纤维更长的纤维的过滤纤维层接触。随后，将过滤表面转移到含有更多白水的区域。纤维层从白水中过滤细粉和其他细颗粒。

9. 发明申请

WO1995027554A1 A METHOD OF PURIFYING GASES CONTAINING NITROGEN OXIDES AND AN APPARATUS FOR PURIFYING GASES IN A STEAM GENERATION BOILER 审中-公开
标题翻译：含有氮氧化物的气体的方法和用于在蒸汽发生炉中净化气体的装置
公开(公告)号：WO1995027554A1
公开(公告)日：1995-10-19
申请号：PCT/FI1995000207
申请日：1995-04-12
申请人： A. AHLSTROM CORPORATION
发明人： A. AHLSTROM CORPORATION , HILTUNEN, Matti , LEE, Yam , VIEL LAMARE, Charles
IPC分类号： B01D53/56
CPC分类号： F23C10/10 , B01D53/56 , B01D53/8625 , F23J15/02 , F23J2215/10 , F23J2219/10 , F23J2219/20
摘要： A method of reducing the nitrogen oxide level in the flue gases issuing from combustion units by introduction of reducing agents into contact with gases containing nitrogen oxides in first and second reducing stages, is provided. The first reducing stage is a non-catalytic stage (e.g. at temperatures over 800 DEG C), while the second stage is a catalytic stage (e.g. at temperatures of about 300-400 DEG C). A steam generation boiler with improved nitrogen reduction facilities is also provided. The amount of nitrogen oxides in the hot gases is reduced in the combination of the first and second reducing stages while producing steam in a steam generation boiler system, thus resulting in gases essentially free from nitrogen oxides while eliminating the possibility of NH3 (or other reducing agent) slip in the exhausted flue gases. Heat transfers in a convection section are used to establish stabilized temperature conditions for catalytic reduction.
摘要翻译：提供了一种通过在第一和第二还原阶段通过引入还原剂与含有氮氧化物的气体接触来降低从燃烧单元排出的烟道气中的氮氧化物含量的方法。第一还原阶段是非催化阶段（例如在800℃以上的温度），而第二阶段是催化阶段（例如在约300-400℃的温度）。还提供了具有改进的氮还原设备的蒸汽发生锅炉。在第一和第二还原阶段的组合中，在蒸汽发生锅炉系统中产生蒸汽的同时，热气中的氮氧化物的量减少，从而导致基本上不含氮氧化物的气体，同时消除了NH 3（或其它还原试剂）在耗尽的烟道气中滑移。使用对流段中的热传递建立稳定的催化还原温度条件。

10. 发明申请

WO1995010693A1 A COMBINED GAS AND STEAM CYCLE PRESSURIZED FLUIDIZED BED BOILER POWER PLANT AND A METHOD OF ESTABLISHING AND OPERATING THE SAME 审中-公开
标题翻译：组合式气体和蒸汽循环增压流化床锅炉发电厂及其建立和运行方法
公开(公告)号：WO1995010693A1
公开(公告)日：1995-04-20
申请号：PCT/FI1994000445
申请日：1994-10-05
申请人： A. AHLSTROM CORPORATION
发明人： A. AHLSTROM CORPORATION , LAMAR, Thomas
IPC分类号： F01K23/06
CPC分类号： F02C3/305 , F01K23/062 , F02C3/205 , Y02E20/16
摘要： A combined cycle pressurized fluidized bed power plant having a system for maintaining operation during low load condition, comprises a pressurized fluidized combustor for burning fuel for producing a gas for powering a gas turbine (22), and for producing steam for powering a steam turbine (24), a gas turbine responsive to the gas for powering a compressor (28) for supplying air to the combustor and a first generator (26) for generating electrical power, a steam turbine responsive to the steam for powering a second generator (32) for generating electrical power, and means (64) for directing steam into the gas turbine for powering the turbine and compressor during low load conditions of the power plant.
摘要翻译：一种具有用于在低负载状态下保持运行的系统的联合循环加压流化床动力装置包括用于燃烧燃料的加压流化燃烧器，用于产生用于为燃气轮机（22）供电的气体，以及用于产生用于为汽轮机供电的蒸汽 24），响应于用于为燃烧器供应空气的压缩机（28）供电的燃气轮机和用于产生电力的第一发电机（26），响应于用于为第二发电机（32）供电的蒸汽的蒸汽轮机，用于产生电力的装置，以及用于将蒸汽引导到燃气轮机中以在发电厂的低负载条件期间为涡轮机和压缩机供电的装置（64）。

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