Process for stabilizing the PH of a pulp suspension and for producing paper from the stabilized pulp
    1.
    发明授权
    Process for stabilizing the PH of a pulp suspension and for producing paper from the stabilized pulp 有权
    用于稳定纸浆悬浮液的PH和从稳定的纸浆生产纸张的方法

    公开(公告)号:US06991705B2

    公开(公告)日:2006-01-31

    申请号:US09445710

    申请日:1998-06-12

    IPC分类号: D21H17/64 D21H17/73 D21C9/00

    CPC分类号: D21H17/64

    摘要: The invention relates to a process for stabilizing the pH of a pulp suspension with buffering agents and to a process for producing paper from a stabilized pulp suspension. The alkalinity of the pulp suspension is increased by a combination of an alkali metal hydroxide feed and a carbon dioxide feed. Said feeds provide a significant buffering effect which stablilizes the pH of said pulp suspension for the paper making process.

    摘要翻译: 本发明涉及一种用缓冲剂稳定纸浆悬浮液的pH的方法以及由稳定的纸浆悬浮液生产纸的方法。 纸浆悬浮液的碱度通过碱金属氢氧化物进料和二氧化碳进料的组合而增加。 所述饲料提供了显着的缓冲效果,其稳定了用于造纸过程的所述纸浆悬浮液的pH。

    Cylindrical vessel for separation
    2.
    发明授权
    Cylindrical vessel for separation 失效
    用于分离的圆柱形容器

    公开(公告)号:US6070653A

    公开(公告)日:2000-06-06

    申请号:US142296

    申请日:1999-02-19

    申请人: Torgny Wingbro

    发明人: Torgny Wingbro

    摘要: A separation device comprises a vessel (1) having an essentially circular cylindrical shape around a center axis (2), a first passage (4) provided in the cylindrical wall of the vessel and a second passage (5), provided in the cylindrical wall of the vessel on a diametrically opposite part thereof. An enclosure means (6) is provided in the vessel (1) to enclose a bed (7) of particulate material and comprises a first and second enclosure panel (8, 9) provided inside the first and second passages (4, 5), respectively, at a distance therefrom to provide a flow distribution space (11) therebetween and being perforated (15) to permit fluid flow therethrough. Each of said enclosure panels (8, 9) has an outer surface which is essentially parallel with the center axis (2) and convex seen from the respective passage (4,5).

    摘要翻译: PCT No.PCT / SE97 / 00331 Sec。 371日期1999年2月19日 102(e)1999年2月19日PCT PCT 1997年2月26日PCT公布。 公开号WO97 / 32657 日期1997年9月12日分离装置包括围绕中心轴线(2)具有基本上圆柱形的容器(1),设置在容器的圆柱形壁中的第一通道(4)和第二通道(5) 设置在容器的圆柱形壁上的直径相对的部分上。 壳体(6)设置在容器(1)中以封闭颗粒材料的床(7),并且包括设置在第一和第二通道(4,5)内的第一和第二外壳板(8,9) 分别在其间隔一段距离处,以在其间提供流动分配空间(11)并且被穿孔(15)以允许流体流过其中。 每个所述外壳面板(8,9)具有外表面,该外表面与中心轴线(2)基本上平行,并且从相应的通道(4,5)可见凸出。

    Method for suppressing undesired effects of transition and alkaline
metal compounds during bleaching
    3.
    发明授权
    Method for suppressing undesired effects of transition and alkaline metal compounds during bleaching 失效
    在漂白期间抑制转变和碱金属化合物的不期望的影响的方法

    公开(公告)号:US5985097A

    公开(公告)日:1999-11-16

    申请号:US737221

    申请日:1996-12-30

    CPC分类号: D21C9/147 D21C9/1036

    摘要: A method that solves the problem of suppressing disturbing effects of transition and alkaline earth metal compounds during bleaching of chemically digested lignocellulosic pulp in a sequence with oxygen bleaching prior to oxidative stages with introduction of for instance ozone, superoxides, hydrogen peroxide and peroxy acids. The conditions during the oxygen bleaching are chosen so that the properties of these metal compounds are changed and the compounds removed from the pulp during the oxygen bleaching under such conditions that the attack on the cellulose is small and the fluctuations of the pulp quality due to fluctuating amounts of these metal compounds decrease markedly.

    摘要翻译: PCT No.PCT / SE95 / 00433 Sec。 371日期1996年12月30日第 102(e)日期1996年12月30日PCT提交1995年4月21日PCT公布。 公开号WO95 / 32332 日期:1995年11月30日一种方法,其解决了在氧化阶段之前以氧漂白的顺序漂白化学消化的木质纤维素纸浆的漂白期间抑制过渡碱土金属化合物的干扰效应的问题,引入例如臭氧,超氧化物,过氧化氢 和过氧酸。 选择氧气漂白过程中的条件使得这些金属化合物的性质发生变化,并且在氧气漂白过程中,在纤维素的侵蚀小和由于波动引起的纸浆质量波动的条件下,从纸浆中除去的化合物 这些金属化合物的量显着下降。

    Method and an apparatus for the treatment of components by a gas mixture
    4.
    发明授权
    Method and an apparatus for the treatment of components by a gas mixture 失效
    用于通过气体混合物处理组分的方法和装置

    公开(公告)号:US5938866A

    公开(公告)日:1999-08-17

    申请号:US973650

    申请日:1998-03-25

    摘要: An apparatus for the treatment of components by means of a gas mixture, comprising mainly a first light gas and minor amounts of a second gas being heavier than the first gas, has a treatment chamber (10) in which the treatment occurs and a concentration, and purification device (19, 29, 30) in which the gas mixture is concentrated and purified to increase the concentration of the first gas. The treatment chamber (10) comprises an outlet member (19) provided in an upper part of the treatment chamber (10) and means (14, 15) being arranged to move the gas mixture upwardly and out through the outlet member (19). Said means may comprise an inlet member (14) provided in a lower part of the treatment chamber (10) and arranged to supply additional gas and to admit a laminar inward flow of said additional gas.

    摘要翻译: PCT No.PCT / SE96 / 00743 Sec。 371日期:1998年3月25日 102(e)1998年3月25日PCT PCT 1996年6月5日PCT公布。 出版物WO97 / 00974 日期1997年1月9日一种用于通过气体混合物处理组分的装置,其主要包括第一轻质气体和少量比第一气体重的第二气体,其具有处理室(10),处理室 发生浓缩和净化装置(19,29,30),其中气体混合物被浓缩和净化以增加第一气体的浓度。 处理室(10)包括设置在处理室(10)的上部的出口构件(19)和布置成使气体混合物向上并通过出口构件(19)移出的装置(14,15)。 所述装置可包括设置在处理室(10)下部的入口构件(14),并布置成供应附加气体并允许所述附加气体的层流向内流动。

    Method and apparatus for controlling the atmosphere of an essentially
closed space
    5.
    发明授权
    Method and apparatus for controlling the atmosphere of an essentially closed space 失效
    用于控制基本封闭空间的气氛的方法和装置

    公开(公告)号:US5860857A

    公开(公告)日:1999-01-19

    申请号:US557069

    申请日:1996-05-13

    摘要: The invention relates to a method for regulating the atmosphere in a substantially closed sports/exercise space (1) or an animal shelter (11), especially in terms of partial oxygen pressure. In the method, the normal atmosphere of said space (1; 11) is admixed with nitrogen for the creation of a desired low-oxygen (oxygen content appr. 21%) atmosphere. Said mixing of nitrogen or oxygen with air is carried out at normal air pressure.

    摘要翻译: PCT No.PCT / FI94 / 00498 Sec。 371日期:1996年5月13日 102(e)日期1996年5月13日PCT 1994年11月4日PCT PCT。 WO95 / 13044PC PCT出版物 日期1995年5月18日本发明涉及一种用于调节基本封闭的运动/运动空间(1)或动物收容所(11)中的气氛的方法,特别是在部分氧气压力方面。 在该方法中,将所述空间(1; 11)的正常气氛与氮气混合以产生所需的低氧(氧含量<21%)气氛,所述低氧气氛对应于部分氧气压力 海拔一定高度的空气。 或者,将所述正常气氛与氧气混合以产生所需的高氧(氧含量>约21%)气氛。 所述氮气或氧气与空气的混合在正常空气压力下进行。

    Destruction and re-use of mineral wool scrap
    6.
    发明授权
    Destruction and re-use of mineral wool scrap 失效
    矿棉废料的破坏和再利用

    公开(公告)号:US5274896A

    公开(公告)日:1994-01-04

    申请号:US838243

    申请日:1992-03-05

    申请人: Lars Saltin

    发明人: Lars Saltin

    摘要: A method of destructing mineral-wool scrap and reusing the scrap in the manufacture of mineral wool includes introducing the mineral-wool scrap in a finally divided state into a container causing the finely-divided mineral-wool scrap to pass through a heating zone generated by an oxygen burner such as to convert the mineral-wool scrap to a liquid state and delivering the molten mineral-wool scrap into a furnace in which a melt for manufacturing mineral-wool is produced or to an intermediate container mounted between the furnace and a spinning machine. When the molten mineral-wool scrap is being delivered to the intermediate container, molten material taken from the furnace is also delivered to the intermediate container.

    摘要翻译: PCT No.PCT / SE90 / 00543 Sec。 371日期:1992年3月5日 102(e)1992年3月5日PCT PCT 1990年8月23日PCT公布。 公开号WO91 / 03435 1991年3月21日,一种在矿棉制造中破坏矿棉废料和再利用废料的方法包括将最终分裂状态的矿棉废料引入容器中,使容器中的细碎矿石废料 通过由氧气燃烧器产生的加热区,以将矿棉废料转化为液体状态,并将熔融矿棉废料输送到其中产生用于制造矿棉的熔体或炉中间容器 安装在炉和纺纱机之间。 当熔融的矿棉废料被输送到中间容器时,从炉中取出的熔融材料也被输送到中间容器。

    Method for reducing the flame temperature of a burner and burner
intended therefor
    7.
    发明授权
    Method for reducing the flame temperature of a burner and burner intended therefor 失效
    燃烧器燃烧器火焰温度降低的方法

    公开(公告)号:US5104310A

    公开(公告)日:1992-04-14

    申请号:US719655

    申请日:1991-06-24

    申请人: Lars Saltin

    发明人: Lars Saltin

    摘要: A method for reducing the flame temperature of an oxy-fuel burner, such a burner comprising a central oxygen nozzle at least one fuel nozzle radially spaced from the central oxygen nozzle, and at least one peripheral oxygen nozzle at greater radial distance from the central oxygen nozzle than the fuel nozzle, all nozzles being at least substantially parallel, a casing surrounding the nozzles and whose forward end lies in a plane at right angles to the longitudinal axis of the burner, and whose rear portion defines an oxygen chamber, and means for the supply of oxygen-containing gas and fuel, respectively, to the nozzles. The peripheral oxygen nozzle is in the form of a Laval nozzle or, if it is an annular nozzle, is of the same cross-sectional variation as the Laval nozzle throughout its entire length. The major fraction of the volume of oxygen requisite for combustion is caused to pass at great speed through at least one oxygen nozzle disposed about the burner nozzle and thereby aspirate ambient atmosphere which is at a lower temperature than the flame, before the oxygen from the oxygen nozzle reacts in the flame.

    摘要翻译: 一种用于降低氧燃料燃烧器的火焰温度的方法,这种燃烧器包括中心氧气喷嘴,与中心氧气喷嘴径向间隔开的至少一个燃料喷嘴,以及至少一个外围氧气喷嘴,距离中心氧气更大的径向距离 喷嘴比燃料喷嘴,所有喷嘴至少基本上平行,围绕喷嘴的壳体,其前端位于与燃烧器的纵向轴线成直角的平面中,并且其后部限定氧气室,以及用于 分别向喷嘴供给含氧气体和燃料。 外围氧气喷嘴是拉伐尔(Laval)喷嘴的形式,如果是环形喷嘴,其整个长度与拉瓦尔喷嘴的横截面变化相同。 燃烧所需的氧气体积的主要部分通过设置在燃烧器喷嘴周围的至少一个氧气喷嘴以大速度通过,从而在来自氧气的氧气之前抽吸处于比火焰低的温度的环境气氛 喷嘴在火焰中反应。

    Method and apparatus for supplying oxygen gas for fuel combustion
    10.
    发明授权
    Method and apparatus for supplying oxygen gas for fuel combustion 失效
    用于燃料燃烧的氧气供应方法和装置

    公开(公告)号:US4421273A

    公开(公告)日:1983-12-20

    申请号:US887612

    申请日:1978-03-17

    申请人: Per Lofstrom

    发明人: Per Lofstrom

    摘要: Atomized fuel is sprayed in the form of a cone with the apex of the cone in the aperture of the spray device. Oxygen gas is supplied centrally of the cone and the high temperature resulting from oxygen-supported combustion is generated in the internal portion of the cone. Air, or oxygen-enriched air, supports combustion at the outer surface of the cone thus generating lower temperatures at the outer surface. The extreme thermal stresses experienced by surrounding parts of a spray device used for oxygen-supported combustion are thus reduced.

    摘要翻译: 雾化燃料以锥体的形式喷雾,锥体的顶点在喷雾装置的孔中。 在锥体的中心供应氧气,并且在锥体的内部产生由氧气燃烧产生的高温。 空气或富氧空气支持在锥体的外表面处的燃烧,从而在外表面产生较低的温度。 因此,用于氧气燃烧的喷雾装置的周围部分经受的极端热应力被降低。