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公开(公告)号：US6098309A
公开(公告)日：2000-08-08
申请号：US160039
申请日：1998-09-25
摘要： Apparatus and process for manufacturing or treating a material web that includes at least one heatable cylinder and a combustion unit. The combustion unit is adapted to heat the at least one heatable cylinder with at least one of combustion gases and infrared radiation and the material web is adapted to be guided one of alone and with a transport belt over the at least one heatable cylinder. The apparatus also includes at least one blower box positioned to direct a hot gas onto the material web. The hot gas is at least one of the combustion gas and heated by the combustion gases. The process includes heating the at least one heatable cylinder with at least one of combustion gases and infrared radiation of the combustion unit, guiding the material web, one of alone and with a transport belt, over the at least one heated cylinder, and directing a hot gas from the blower box onto the material web, the hot gas being at least one of the combustion gas and heated by the combustion gases.
摘要翻译： 用于制造或处理包括至少一个可加热缸和燃烧单元的材料纤维网的装置和方法。 燃烧单元适于用燃烧气体和红外辐射中的至少一种来加热至少一个可加热气缸，并且材料腹板适于被引导单独一个并且与传送带一起被引导到至少一个可加热气缸上。 该设备还包括至少一个鼓风箱，定位成将热气引导到材料网上。 热气体是至少一种燃烧气体并被燃烧气体加热。 该方法包括使用燃烧单元的燃烧气体和红外辐射中的至少一种来加热至少一个可加热气缸，在至少一个加热的气缸上引导材料腹板，一个单独的和与输送带一个，并且引导一个 来自鼓风机的热气体到材料幅材上，热气体是至少一种燃烧气体并被燃烧气体加热。
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2.发明授权
公开(公告)号：US5822880A
公开(公告)日：1998-10-20
申请号：US832728
申请日：1997-04-11
申请人： Jarmo Puumalainen
发明人： Jarmo Puumalainen
CPC分类号： D21F5/004 , D21F5/20 , F26B13/105
摘要： A method and an arrangement for utilizing condensation water of an apparatus for drying a fibre web. The drying apparatus comprises two endless bands (1, 2) that are impermeable to air and that have a good thermal conductivity. A fibre web (5) runs between the bands (1, 2) with at least one felt or wire (3, 4). The metal band in contact with the fibre web (5) is heated with a pressure chamber (9) containing a pressure medium that is steam. Correspondingly, the metal band in contact with the felt is cooled. Water that has evaporated from the fibre web (5) and then condensed is gathered from the wire (4) and this condensate is made suitable for use in a power station by means of the removal of solid matter, so that the condensate can be utilized.
摘要翻译： 一种利用纤维网干燥装置的冷凝水的方法和装置。 干燥装置包括两个不透气且具有良好导热性的环形带（1,2）。 纤维网（5）在具有至少一个毡或线（3,4）的带（1,2）之间延伸。 与纤维网（5）接触的金属带用包含蒸汽压力介质的压力室（9）加热。 相应地，与毡接触的金属带被冷却。 从纤维网（5）蒸发然后冷凝的水从电线（4）收集，并且该冷凝物通过去除固体物质适于在发电站中使用，从而可以利用冷凝物 。
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3.发明授权Method and device for intensifying the operation of a Yankee press in a soft-tissue paper machine 失效在软纸机中强化洋基压力机的操作的方法和装置
公开(公告)号：US5385644A
公开(公告)日：1995-01-31
申请号：US73101
申请日：1993-06-07
申请人： Lars H. M. Hannus , Jens P. Enkvist
发明人： Lars H. M. Hannus , Jens P. Enkvist
CPC分类号： D21F5/044 , D21F11/14 , D21F3/0281 , Y02P70/24
摘要： A method and device for intensifying the operation of a Yankee press in a soft-tissue machine in which a web is pressed in one or several nips formed between a Yankee cylinder and one or more press rolls. The web is dried on the Yankee cylinder by blowing hot air introduced through the Yankee hood against the web. In the method, a blow device is used to blow hot and humid air against the web. The blow air for the blow device is taken from the outlet/heat recovery of the air system of the Yankee hood, and the exhaust air from the blow device is returned to the outlet/heat recovery of the air system of the Yankee hood. Air is blown against the web at the proximity of the nip formed between the Yankee cylinder and the first press roll, before and near the first press nip, in the running direction of the web. The blow device includes a blow chamber, an exhaust chamber, and blow nozzles for blowing hot and humid air against the web and exhaust-air ducts for the removal of the air.
摘要翻译： 一种用于在软烘衣机中增强洋基压力机的操作的方法和装置，其中在杨克缸和一个或多个压榨辊之间形成的一个或多个压区中压榨纤维网。 通过将通过扬克风罩引入的热空气吹向网上，在洋基圆筒上干燥网。 在该方法中，吹风装置用于将热和潮湿的空气吹向网。 用于吹风装置的吹风从扬克风罩的空气系统的出口/热回收中获取，并且来自吹风装置的排出空气返回到扬克风罩的空气系统的出口/热回收。 在幅材的运行方向上，在第一压区之间和附近，在扬克圆筒和第一压辊之间形成的辊隙附近，将空气吹向卷筒纸上。 吹风装置包括吹风室，排气室和用于将热湿气体吹向纸幅和用于除去空气的废气管道的吹风嘴。
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4.发明授权Steam generator heated by combination of electric heat and condensation of contaminated process steam 失效蒸汽发生器通过电热和污染过程蒸汽的冷凝相结合而加热
公开(公告)号：US4532413A
公开(公告)日：1985-07-30
申请号：US434847
申请日：1982-10-18
申请人： Heikki Ahonen
发明人： Heikki Ahonen
摘要： A steam generator assembly, particularly for use in connection with the mechanical preparation of pulp, for generating pure steam required in a subsequent process, such as drying of proper in a paper machine, by utilizing the condensation heat of contaminated steam coming from a preceding process, such as a grinding process, includes a steam converter and electrical boiler arranged in a common housing to form a unified structure. The steam converter utilizes the condensation heat of the contaminated steam to generate pure steam from water supplied to the converter. The electric boiler is connected in parallel to the steam converter and includes electrodes adapted to generate steam when moistened by water supplied to the boiler from a separate water container in the housing. Selective control of the supply of water to the electric boiler and the extent to which the electrodes are moistened regulates the amount of pure steam generated by the electric boiler. The pure steam generated by the steam converter and electric boiler is discharged from the common housing through a steam outlet.
摘要翻译： 一种蒸汽发生器组件，特别用于与纸浆的机械制备相结合，用于在随后的工艺中产生纯蒸汽，例如在造纸机中干燥适当的纯蒸汽，利用来自前述过程的污染蒸汽的冷凝热 例如磨削过程包括布置在公共壳体中以形成统一结构的蒸汽转换器和电锅炉。 蒸汽转化器利用受污染的蒸汽的冷凝热从供应到转炉的水中产生纯蒸汽。 电锅炉与蒸汽转换器并联连接，并且包括适于在从壳体中的单独的水容器供应到锅炉的水被润湿时产生蒸汽的电极。 对电锅炉供水的选择性控制以及电极被润湿的程度调节由电锅炉产生的纯蒸汽的量。 蒸汽转换器和电锅炉产生的纯蒸汽通过蒸汽出口从共用外壳排出。
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公开(公告)号：US4522035A
公开(公告)日：1985-06-11
申请号：US558014
申请日：1983-12-05
申请人： David Dyer , James L. Wise
发明人： David Dyer , James L. Wise
IPC分类号： B01D1/28 , B01D3/00 , D21C11/06 , D21F5/20 , F22B1/16 , F22B3/00 , F25B1/10 , F25B29/00 , F25B7/00
CPC分类号： F25B1/10 , B01D1/2884 , B01D3/007 , D21C11/06 , D21F5/20 , F22B1/16 , F22B3/00 , F25B29/003 , Y02P70/24 , Y02P70/34
摘要： Method and apparatus for recovery of waste heat from thermomechanical pulping systems and the like in which waste heat in the form of steam exhausted from the mechanical pulper and latency chest portions of the thermomechanical pulping system are respectively passed through first and second evaporators which increase the enthalpy of the working liquid. The working fluid outputted from the first evaporator passes through a first compressor to significantly increase both pressure and temperature and further increase enthalpy. The working fluid at the outlet of the first compressor then undergoes desuperheating within an intercooling tank. The liquid phase of the working fluid is passed from said tank to the inputs of both evaporators, while the vapor phase merges with the working fluid outputted from the second evaporator and enters a second compressor to undergo further increases in pressure and temperature. The working fluid emerges from the second compressor and is passed through a condenser where it transfers its heat energy to water passing through the condenser, which water is converted to steam at a pressure well in excess of atmospheric. The working liquid, in giving up its heat energy, is converted into the liquid phase and is passed to the intercooling tank which serves as a means to balance differences in the mass flow rate, temperature, pressure and enthalpy of the working fluids respectively passing through the first and second compressors, thereby allowing the first and second compressors to operate at different temperature and pressure levels although they are driven by a common prime mover. The waste heat recovery system produces extremely useful high pressure, high temperature steam, free of the impurities present in the steam vented by the thermal mechanical pulping system. One of the above-mentioned evaporators may be omitted in applications where waste energy is derived from a single source. The system may be used in conjunction with other systems developing high waste energy such as dryer systems. Other techniques are employed to further enhance the coefficient of performance of the system.
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公开(公告)号：US11891759B2
公开(公告)日：2024-02-06
申请号：US17348885
申请日：2021-06-16
申请人： STRUCTURED I, LLC
摘要： A papermaking process including the steps of forming a wet paper web on a papermaking machine, pulling vacuum through the web to remove water from the web and thereby generate discharge air, and diverting at least a portion of the discharge air through a control loop to a hot air drying system within the papermaking process to aid in drying the web, wherein the vacuum is generated by centrifugal blowers.
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公开(公告)号：US20180171555A1
公开(公告)日：2018-06-21
申请号：US15816143
申请日：2017-11-17
申请人： Voith Patent GmbH
摘要： A method for operating a heating group subsystem of a machine for the production or treatment of a fibrous web. The heating group subsystem includes a first heating group and a last heating group and at least one additional heating group; in each case having at least one device that is heated with pressurized heating steam. Viewed in a direction of travel, the fibrous web is fed first through the first heating group, then through the at least one additional heating group, and thereafter through last heating group. The steam pressure of the heating steam of the at least one additional heating group is adjusted lower than the respective steam pressure of the heating steam of first heating group and of last heating group.
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公开(公告)号：US20170002515A1
公开(公告)日：2017-01-05
申请号：US15107365
申请日：2015-01-15
申请人： VALMET S.P.A.
摘要： The invention relates to a process and a machine for making a tissue paper web (W) in which the tissue paper web W is passed through an extended nip N formed between an extended nip unit (2) and a Yankee drying cylinder (1) and in which the tissue paper web W is carried on a felt (3) through the extended nip N in such a way that, in the extended nip N, the tissue paper web W contacts the outer surface (4) of the Yankee drying cylinder (1). The web W and the felt (3) are led over a suction roll (5) prior to the extended nip N in such a way that the felt (3) contacts the suction roll (5) and the tissue paper web W is separated from the suction roll (5) by the felt (3). The suction roll (5) has a suction zone (6) over which the felt (3) and the tissue paper web W pass together, and a first hood (7) is arranged opposite the suction roll (5) and partially surrounds the suction roll (5). The first hood (7) has an extension around the suction roll such the first hood (7) covers the entire suction zone (6), and moist hot air is fed from the first hood (7) and sucked through the tissue paper web and the felt (3) by the suction roll (5). The tissue paper web W is directly exposed to the first hood (7) such that the moist hot air reaches the tissue paper web W without passing through a fabric before reaching the tissue paper web W. The Yankee drying cylinder (1) is covered by a second hood (8) which is a Yankee hood which has an air heating and distribution system (9) and hot exhaust air from the second hood (8) is fed through a conduit (10) to the first hood (7) and used to supply the first hood (7) with moist hot air. The moist hot air has a temperature in the range of 130° C.-300° C. and a moisture content of 300 g/kg dry air-1000 g/kg dry air at a rate of 90-130 m3/minute per square meter suction zone area. The moist air is then sucked through the tissue paper web W by the suction roll (5) such that moisture condensates on the tissue paper web W and thereby raises the temperature of the tissue paper web W before the tissue paper web W passes through the extended nip N.
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公开(公告)号：US09328460B2
公开(公告)日：2016-05-03
申请号：US13206802
申请日：2011-08-10
申请人： Thomas Scherb , Joao V. Boechat
发明人： Thomas Scherb , Joao V. Boechat
CPC分类号： D21F5/20 , D21F3/0272 , D21F5/181
摘要： The invention relates to a method and to a device for drying a fibrous web wherein the traveling fibrous web is acted upon by steam and hot, moist air in the region of a preceding drying zone and is then fed to the preceding drying zone of a downstream drying zone comprising a drying cylinder and a hood allocated thereto. Hot air is taken out of the hood allocated to the drying cylinder of the downstream drying zone. To create at least a portion of the steam for the preceding drying zone, condensate and/or fresh water occurring in the drying cylinder of the downstream drying zone is heated by the hot air taken out of the hood by means of a first heat exchanger. Alternatively or additionally for creating at least a portion of the hot, moist air for the preceding drying zone, the hot air taken out of the hood guided through the first heat exchanger is fed to the preceding drying zone.
摘要翻译： 本发明涉及一种用于干燥纤维网的方法和装置，其中行进的纤维网在前一个干燥区域的区域内由蒸汽和热的潮湿空气作用，然后被送入前一个干燥区的下游 干燥区包括干燥筒和分配给它的罩。 热空气从分配给下游干燥区的干燥筒的发动机罩中取出。 为了产生前一个干燥区域的蒸汽的至少一部分，在下游干燥区域的干燥筒中产生的冷凝物和/或淡水由通过第一热交换器从罩引出的热空气加热。 替代地或另外地用于产生用于前一个干燥区域的热潮湿空气的至少一部分，从通过第一热交换器引导的罩中取出的热空气被供给到先前的干燥区域。
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公开(公告)号：US08849443B2
公开(公告)日：2014-09-30
申请号：US13254901
申请日：2010-01-14
CPC分类号： D21F5/00 , D21F5/20 , D21G9/0036 , Y02P70/24 , Y02P80/152
摘要： In order to achieve an improved or optimized operation mode of an “expanded drying section” of a paper machine—having the “actual” drying section, separated, if applicable, into pre-drying and post-drying sections with a size press located therebetween, a steam and condensate system, an exhaust air heat recovery system, a wet press and the white water—a model that includes the above system components is proposed, with which mass and energy balances for the system components as well as the specific energy consumption of the drying section are calculated, based on values for parameters relevant for the drying process.
摘要翻译： 为了实现具有“实际”干燥部分的造纸机的“扩展干燥部”的改进或优化的操作模式，如果适用，将其分离成预干燥和干燥后部分，其间具有压力机 ，蒸汽冷凝系统，排气热回收系统，湿压机和白水 - 包括上述系统组件的模型，系统组件的质量和能量平衡以及比能耗 根据与干燥过程相关的参数的值来计算干燥部分。
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