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    Process for making gypsum fiberboard
    1.
    发明授权
    Process for making gypsum fiberboard 失效
    制作石膏纤维板的工艺

    公开(公告)号：US4966739A

    公开(公告)日：1990-10-30

    申请号：US463916

    申请日：1990-01-10

    申请人： Josef Stipek ,  Friedrich Bahner ,  Horst Hose ,  Karl Freisinger ,  Helmut Eidam

    发明人： Josef Stipek ,  Friedrich Bahner ,  Horst Hose ,  Karl Freisinger ,  Helmut Eidam

    IPC分类号： B28B1/52 ,  C04B28/14

    CPC分类号： C04B28/141 ,  C04B28/146 ,  Y02W30/97

    摘要： In the process for making gypsum fiberboard the boards are formed or moldedrom a mash containing calcium sulfate dihydrate and fiberous material. By heating and subsequently cooling the boards the dihydrate is first converted into the hemihydrate and subsequently recrystallized again to the dihydrate. Known processes require day line setting times which are economically disadvantageous. According to the present invention these times are shortened by pulling or drawing water, an aqueous solution or a water containing mixture through the boards after the cooling step. Advantageously a setting accelerating agent can be dissolved in the water. By these features the setting time can be shortened to less than two hours. By addition of a binding agent, e.g. starch, to the fluid drawn through the boards the strength of the boards is increased.

    摘要翻译： 在制造石膏纤维板的过程中，由含有硫酸钙二水合物和纤维材料的糊状物形成或模塑板。 通过加热并随后冷却板，将二水合物首先转化成半水合物，然后再次重结晶至二水合物。 已知的方法需要日线设置时间，这在经济上是不利的。 根据本发明，通过在冷却步骤之后通过板拉取或拉取水，水溶液或含水混合物来缩短这些时间。 有利的是，凝固促进剂可以溶解在水中。 通过这些功能，可将设置时间缩短至少于2小时。 通过添加粘合剂，例如 淀粉，通过板拉出的流体，板的强度增加。

    Continuous drier for plywood sheets
    5.
    发明授权
    Continuous drier for plywood sheets 失效
    连续干燥胶合板

    公开(公告)号：US4494315A

    公开(公告)日：1985-01-22

    申请号：US376832

    申请日：1982-05-10

    申请人： Friedrich Roos ,  Friedrich Bahner

    发明人： Friedrich Roos ,  Friedrich Bahner

    IPC分类号： F26B13/10 ,  F26B13/12 ,  F26B21/06 ,  F26B21/10

    CPC分类号： F26B21/06 ,  F26B13/10 ,  F26B13/12

    摘要： A continuous drier for plywood sheets is provided at its inlet end with a nsing device measuring the width and the spacing of the plywood sheets entering the drier. The values measured by the sensing device are transmitted to a control device, which by means of a calculator regulates the speed of a conveyor transporting the plywood sheets through consecutive sections of the drier in such a manner that the plywood sheets follow each other closely on the conveyor without overlapping. Each of the sections is provided with a heater and a ventilator which blows air over the heater, and the hot air is directed by installations onto the plywood sheets. In order to compensate the effect of the varying speed of the conveyor with respect to the drying of the plywood sheets, the control device preferably controls also the volume of the streams of hot air by varying the speed of the ventilators. This will result in a considerable saving of the driving energy.

    摘要翻译： 胶合板的连续干燥器在其入口端设置有测量进入干燥器的胶合板的宽度和间距的感测装置。 由感测装置测量的值被传送到控制装置，该控制装置借助于计算机来调节传送胶合板的输送机的速度，使得胶合板沿着干燥器的连续部分以这样一种方式紧密地彼此靠近 输送机不重叠。 每个部分设置有加热器和将空气吹过加热器的通风机，并且热空气通过安装被引导到胶合板上。 为了补偿输送机相对于胶合板的干燥的变化速度的影响，控制装置优选通过改变通风机的速度来控制热空气流的体积。 这将大大节省驱动能量。

    Arrangement and method of drying articles
    6.
    发明授权
    Arrangement and method of drying articles 失效
    干燥物品的布置和方法

    公开(公告)号：US4312136A

    公开(公告)日：1982-01-26

    申请号：US782542

    申请日：1977-03-29

    申请人： Friedrich Bahner ,  Kurt Eberhardt ,  Ernst Lotz

    发明人： Friedrich Bahner ,  Kurt Eberhardt ,  Ernst Lotz

    IPC分类号： F26B13/10 ,  F26B3/04 ,  F26B21/00 ,  F26B21/06 ,  F26B23/00 ,  F26B23/02 ,  F26B3/00

    CPC分类号： F26B23/02 ,  F26B23/002 ,  F26B3/04 ,  Y02P70/405

    摘要： Wet plasterboard to be dried is advanced along a path. At an upstream portion of the path, air is heated and directed towards the plasterboard for initial drying of the latter. A portion of the heated air is withdrawn and passed through one section of a heat exchanger whose other section contains water which exchanges heat with the heated air. The heated water is passed through a section of another heat exchanger whose other section contains fresh air which is heated by the heated water. The heated fresh air is directed towards the articles for further drying of the latter at a downstream portion of the path. A portion of the heated fresh air is exhausted and recirculated at the downstream path portion.

    摘要翻译： 待干燥的湿石膏板沿着路径前进。 在路径的上游部分，空气被加热并且被引向石膏板以便初始干燥。 被加热的空气的一部分被抽出并通过热交换器的一部分，其另一部分包含与热空气交换热量的水。 加热的水通过另一个热交换器的一部分，其另一部分包含被加热的水加热的新鲜空气。 加热的新鲜空气被引导到物品，以在路径的下游部分进一步干燥物品。 一部分加热的新鲜空气被排出并在下游路径部分再循环。

    Process and apparatus for the thermal measurement of mass flow
    8.
    发明授权
    Process and apparatus for the thermal measurement of mass flow 失效
    用于质量流量热测量的方法和装置

    公开(公告)号：US4339949A

    公开(公告)日：1982-07-20

    申请号：US107653

    申请日：1979-12-27

    申请人： Friedrich Bahner ,  Harry Pleva

    发明人： Friedrich Bahner ,  Harry Pleva

    IPC分类号： G01F1/684 ,  G01F1/68

    CPC分类号： G01F1/684

    摘要： A thermal measurement of mass flow is obtained by passing a flowing mass through a hollow passageway, measuring the temperature of the mass at the inlet and at the outlet of said passageway and additionally measuring the heat flow released or absorbed through the walls of the passageway and then determining the mass flow by setting up the heat balance equation on the basis of the obtained data. Preferably, the data are fed into a computer to solve the resulting heat balance equation. The invention also comprises an apparatus wherein temperature sensors are arranged at both ends of a tubular passageway and wherein the heat flow meter comprises concentric wire coils of a thermic resistance material wound around the outer periphery of the tube and an interposed layer of predetermined thickness formed of a material of at most moderate heat conductivity.

    摘要翻译： 通过使流动的质量通过中空通道，测量在所述通道的入口和出口处的质量的温度并另外测量通过通道的壁释放或吸收的热流而获得质量流量的热测量， 然后根据获得的数据设定热平衡方程来确定质量流量。 优选地，将数据馈送到计算机中以解决所得到的热平衡方程。 本发明还包括一种装置，其中温度传感器布置在管状通道的两端，并且其中热流计包括围绕管的外周缠绕的耐热电阻材料的同心线线圈和由 一种至多中度导热性的材料。

    Board drying process and drier
    9.
    发明授权
    Board drying process and drier 失效
    板干燥过程和干燥剂

    公开(公告)号：US5659975A

    公开(公告)日：1997-08-26

    申请号：US591545

    申请日：1996-01-25

    申请人： Friedrich Bahner ,  Manfred Braun ,  Karl-Friedrich Lang ,  Gerhard Lehn ,  Karl Maurer ,  Manfred Schmidt ,  Josef Steinkuhl

    发明人： Friedrich Bahner ,  Manfred Braun ,  Karl-Friedrich Lang ,  Gerhard Lehn ,  Karl Maurer ,  Manfred Schmidt ,  Josef Steinkuhl

    IPC分类号： F26B3/28 ,  F26B15/12 ,  F26B15/18 ,  F26B21/00 ,  F26B21/04 ,  F26B21/06 ,  F26B23/00 ,  F26B23/02 ,  F26B23/10 ,  F26B7/00

    CPC分类号： F26B3/283 ,  F26B15/12 ,  F26B21/06 ,  F26B23/002 ,  F26B23/02 ,  F26B23/10 ,  Y02P70/405

    摘要： In order to dry boards, the boards are guided on racks through a drier and brought into contact with drying air in two stages. In a stage A with a higher drying power, the drying air is supplied at a higher temperature and with an at least average humidity, and in the other stage B, it is supplied at an average temperature and with a low humidity. The waste heat of the outgoing air from stage A is used for preheating the drying air. This process should reduce the consumption of primary energy. For that purpose, a process is known that consists of also using the outgoing air condensation heat. This has the inconvenience, however, of requiring substantially more secondary energy, as important air mass flows are required to transfer heat because of the low condensation temperature. Primary energy should be reduced by using condensation heat without substantially increasing secondary energy requirements. According to the invention, the outgoing air from stage A is supplied to stage B through a heat exchanger arranged in the rack of the drier. The drying air of stage B is supplied in counter-current through the drier with a low humidity and temperature, so that the boards are dried in stage B both by condensation heat and by radiant heat. Thus only a reduced mass flow of drying air is required to transfer the condensation heat. The consumption of primary and secondary energy is low. This invention is suitable for drying boards as for buildings and gypsum plain boards or fibre boards.

    摘要翻译： PCT No.PCT / EP94 / 02479 Sec。 371日期：1996年1月25日 102（e）日期1996年1月25日PCT提交1994年7月27日PCT公布。 公开号WO95 / 04908 日期1995年2月16日为了干燥板，板通过干燥器在机架上引导，并分两个阶段与干燥空气接触。 在具有较高干燥能力的阶段A中，干燥空气在更高的温度和至少平均湿度下供应，而在另一个阶段B中，在平均温度和低湿度下供应干燥空气。 来自阶段A的排出空气的废热用于预热干燥空气。 这个过程应该减少一次能源的消耗。 为此目的，已知一种也使用输出空气冷凝热组成的方法。 然而，由于低冷凝温度，重要的空气质量流量需要传递热量，所以这带来了非常多的二次能量的不便。 应通过使用冷凝热来减少一次能源，而不会大幅增加二次能源需求。 根据本发明，通过布置在干燥器的齿条中的热交换器将来自阶段A的排出空气供应到阶段B. 阶段B的干燥空气通过干燥器以低湿度和温度逆流供应，使得板在B阶段通过冷凝热和辐射热干燥。 因此，只需减少干燥空气的质量流量来转移冷凝热。 一次和二次能源的消耗低。 本发明适用于建筑物，石膏板，纤维板等干燥板。

    Method for determining the operating level of a fan and fan
    10.
    发明授权
    Method for determining the operating level of a fan and fan 失效
    用于确定风扇和风扇的操作水平的方法

    公开(公告)号：US06241463B1

    公开(公告)日：2001-06-05

    申请号：US09102462

    申请日：1998-06-22

    申请人： Friedrich Bahner ,  Norbert Eichhorn ,  Wilfried Möller

    发明人： Friedrich Bahner ,  Norbert Eichhorn ,  Wilfried Möller

    IPC分类号： F01B2500

    CPC分类号： F04D27/001 ,  F05D2270/301

    摘要： Fore many applications it is desirable to determine the operating level, i.e. the current flow rate V and the total pressure difference &Dgr;pt of a fan in the installed state without external measuring points and calibration. The invention should develop a suitable method and a corresponding fan. In the method of the invention, from a measured effective pressure difference &Dgr;pMw a flow rate V is determined and from that, via an operational characteristic curve a target value for the total pressure difference &Dgr;pst is found. By comparing the target value &Dgr;pst determined this way with its measured value &Dgr;pMt the operating level and its accuracy are determined. For this purpose on the fan of the invention measuring points are provided for measuring one or more effective pressure differences &Dgr;pMw and the total pressure difference &Dgr;pMt.

    摘要翻译： 在许多应用中，期望确定操作水平，即在没有外部测量点和校准的情况下在安装状态下的风扇的当前流量V和总压差DELTApt。 本发明应该开发合适的方法和相应的风扇。在本发明的方法中，根据测量的有效压差DELTApMw确定流量V，并且从该操作特性曲线确定总压差DELTApst的目标值 被发现。 通过将这样确定的目标值DELTApst与其测量值DELTApMt进行比较，确定操作水平及其精度。 为此，在本发明的风扇上，提供测量点用于测量一个或多个有效压差DELTApMw和总压差DELTApMt。