METHOD AND APPARATUS FOR CONTROLLING A CELLULOSIC PULP PROCESS
    3.
    发明公开
    METHOD AND APPARATUS FOR CONTROLLING A CELLULOSIC PULP PROCESS 审中-公开
    控制纤维素纸浆方法的方法和设备

    公开(公告)号:EP3230520A1

    公开(公告)日:2017-10-18

    申请号:EP14908068.1

    申请日:2014-12-12

    申请人: Canfor Pulp Ltd

    IPC分类号: D21C9/00

    摘要: A method and apparatus for controlling a cellulosic pulp process for producing a pulp product having a desired pulp property is disclosed. The method involves illuminating an in-process portion of pulp using a first wavelength of light, and receiving a scattered light spectrum from the illuminated portion of pulp, the scattered light spectrum including spectral components that have been shifted in wavelength through interaction with a constituent of the illuminated portion of pulp. The method also involves filtering the scattered light spectrum to separate the spectral components, and identifying spectral features in the filtered scattered light spectrum that correspond to the pulp property. The method further involves generating a control signal for controlling the pulp process based on variations in the identified spectral features to cause the pulp property to fall within a desired range.

    摘要翻译: 公开了一种用于控制用于生产具有所需纸浆性质的纸浆产品的纤维素纸浆工艺的方法和设备。 该方法包括使用第一波长的光照射纸浆的过程中部分,并从纸浆的照射部分接收散射光谱,散射光谱包括通过与组分 纸浆的照亮部分。 该方法还包括过滤散射光谱以分离光谱分量,并识别过滤后的散射光谱中对应于纸浆性质的光谱特征。 该方法还涉及基于所识别的光谱特征中的变化来产生用于控制纸浆过程的控制信号,以使纸浆性质落入期望的范围内。