Method for the preparation of acid-resistant calcium silicate
    1.
    发明授权
    Method for the preparation of acid-resistant calcium silicate 失效
    酸性硅酸钙的制备方法

    公开(公告)号:US5750038A

    公开(公告)日:1998-05-12

    申请号:US813684

    申请日:1997-03-07

    IPC分类号: B01D37/02 B01J20/10 C01B33/24

    CPC分类号: B01J20/10

    摘要: A novel method is proposed for the preparation of a calcium silicate powder particularly useful as a filter aid in the filtration of an acidic aqueous liquid by virtue of the extremely high acid resistance of the calcium silicate powder. The inventive method comprises a hydrothermal reaction of a blend of a silica-containing material and calcium oxide or hydroxide in a specified molar ratio under specified reaction conditions to form calcium silicate, which is then subjected to a heat treatment at 800.degree.-1200.degree. C. for 0.5-2 hours. An improvement can be obtained in the clarity of the filtrate obtained by the filtration using the calcium silicate powder prepared by the inventive method as a filter aid when the hydrothermal reaction for the preparation thereof is conducted in an aqueous solution of potassium hydroxide in a specified concentration.

    摘要翻译: 提出了一种制备硅酸钙粉末的新方法,该硅酸钙粉末由于硅酸钙粉末的极高耐酸性而特别可用作过滤酸性含水液体中的助滤剂。 本发明的方法包括在规定的反应条件下将含二氧化硅的材料与氧化钙或氢氧化物的混合物以规定的摩尔比水热反应,形成硅酸钙,然后在800-1200℃下进行热处理 0.5-2小时。 在通过本发明方法制备的硅酸钙粉末过滤获得的滤液的澄清度可以获得,当其制备的水热反应在规定浓度的氢氧化钾水溶液中进行时,作为助滤剂 。

    Method and apparatus for continuously coating discrete particles in
turning fluidized bed
    2.
    发明授权
    Method and apparatus for continuously coating discrete particles in turning fluidized bed 失效
    在转动流化床中连续涂布离散颗粒的方法和装置

    公开(公告)号:US4542043A

    公开(公告)日:1985-09-17

    申请号:US664961

    申请日:1984-10-26

    摘要: Method and apparatus for continuously coating discrete particles in a turning fluidized bed formed in a cylindrical coating vessel with a rotary disk at the bottom thereof by blowing hot air into the vessel through air blow holes located between the circumference of the disk and cylindrical side wall of the vessel while spraying a coating material into contact with the particles in the turning fluidized bed, characterized by introducing a particulate raw material and a coating material into the turning fluidized bed at constant feed rates; and discharging coated particles at the same rate as the feed rate of the particulate raw material through a particle discharge port located at such a height as to guarantee an average residence time corresponding to a desired coating rate under given operating conditions including the feed rate of the raw material, the rotational speed of the disk and the feed rate of hot air.

    摘要翻译: 在圆柱形涂布容器中连续涂布离散颗粒的方法和装置,其中底部具有旋转盘,通过位于盘的圆周和圆柱形侧壁之间的气泡孔将热空气吹入容器中 所述容器同时喷涂涂层材料与所述转动流化床中的颗粒接触,其特征在于以恒定进料速率将颗粒状原料和涂料引入所述转动流化床中; 并且以与颗粒状原料的进料速率相同的速率通过位于这样一个高度处的颗粒排出口排出涂覆颗粒,以确保在给定操作条件下对应于所需涂布速率的平均停留时间,包括 原料,盘的转速和热风的进料速度。

    Power unit mounting device
    3.
    发明授权
    Power unit mounting device 失效
    动力装置安装装置

    公开(公告)号:US4666016A

    公开(公告)日:1987-05-19

    申请号:US710668

    申请日:1985-03-12

    摘要: An improved power unit mounting device capable of dumping in a wide range of frequency of vibration. The device having an inner liquid chamber comprises an auxiliary chamber provided on a chassis separately from the mounting device proper. The mounting device proper is formed with the inner chamber communicating with the auxiliary chamber through a plurality of fluid channels.

    摘要翻译: 一种改进的功率单元安装装置,能够在宽范围的振动频率下倾倒。 具有内部液体室的装置包括与安装装置本体分开设置在底架上的辅助室。 安装装置本体形成有内室,其通过多个流体通道与辅助室连通。

    Environmental noise pollution reduction device of running road vehicle
    4.
    发明授权
    Environmental noise pollution reduction device of running road vehicle 失效
    运行道路车辆环境噪声污染减排装置

    公开(公告)号:US4060142A

    公开(公告)日:1977-11-29

    申请号:US633419

    申请日:1975-11-19

    申请人: Eiichi Abe

    发明人: Eiichi Abe

    IPC分类号: B60R13/08 B62D25/08

    CPC分类号: B60R13/0861 B60R13/0838

    摘要: Engine noises directed to the bottom portion of an engine compartment are reflected from the surface of an under-cover partly closing the engine compartment bottom opening and thereafter absorbed by sound-absorbent material attached to the inner surface of the hood of the engine compartment.

    摘要翻译: 引导到发动机舱底部的发动机噪声从底盖的表面反射,部分地封闭发动机舱底部开口,然后由附着在发动机舱罩的内表面的吸声材料吸收。

    Transmission synchronizing mechanism
    5.
    发明授权
    Transmission synchronizing mechanism 失效
    传输同步机制

    公开(公告)号:US4023443A

    公开(公告)日:1977-05-17

    申请号:US641353

    申请日:1975-12-16

    摘要: An electronic means senses the difference in rotational speed between a main shaft gear to be engaged and the main shaft, and actuates a friction disc assembly to connect the low gear to the main shaft to accelerate the countershaft and thus the gear to be engaged if the gear speed is lower than the main shaft speed, and to connect the first gear to the transmission casing to decelerate the countershaft and thus the gear if the gear speed is higher than the main shaft speed, shifting from neutral into the desired gear ratio is prevented until the gear and main shaft speeds are synchronized.

    摘要翻译: 电子装置检测待啮合的主轴齿轮与主轴之间的转速的差异,并且致动摩擦盘组件以将低档连接到主轴以加速中间轴,从而使齿轮啮合,如果 齿轮速度低于主轴速度,并且如果齿轮速度高于主轴速度,则将第一齿轮连接到变速器壳体以减速中间轴,从而减速齿轮,从空档转换到所需变速比 直到齿轮和主轴速度同步。

    Image recording apparatus with evening of the recording medium
    6.
    发明授权
    Image recording apparatus with evening of the recording medium 失效
    图像记录设备与晚上的记录介质

    公开(公告)号:US4931882A

    公开(公告)日:1990-06-05

    申请号:US177501

    申请日:1988-04-04

    IPC分类号: H04N1/387

    CPC分类号: H04N1/3875

    摘要: An image recording apparatus includes a first recording unit, a second recording unit, and a control unit. The first recording unit scans an original image and records an image on a recording medium. The first recording unit has a first operation mode for evening a surface of the recording medium. The second recording unit records an image on the recording medium. The second recording unit has a second operation mode for evening the surface of the recording medium. The control unit controls the first and second recording units. The control unit controls the first recording unit so as to even the surface of the recording medium in the first operation mode at a start of image recording.