公开(公告)号：US20160187260A1

公开(公告)日：2016-06-30

申请号：US14898025

申请日：2014-06-12

Applicant: K+S AKTIENGESELLSCHAFT

Inventor： Udo-Walter LISNER ,  Torsten REST ,  Jessica WAECHTER ,  Joachim MAKOWE ,  Volker MOERKENS ,  Christoph Dominic GEHLEN

IPC: G01N21/71 ,  G01N21/85

CPC classification number: G01N21/718 ,  G01J3/0291 ,  G01J3/443 ,  G01N21/8507 ,  G01N2021/152 ,  G01N2021/8592 ,  G01N2201/06113 ,  G02B7/023

Abstract: (EN) The invention relates to a special LIBS measurement tube focusing unit, referred to simply as LIBS measurement tube, for vertically dipping into a material to be analyzed, which material is moved in a horizontal flow, characterized in that the measurement tube extends vertically and is internally hollow and open at least at the bottom end, such that a bottom edge is formed at the bottom end, the measurement tube has an inlet for coupling in a laser beam and an outlet for coupling out an emission spectrum at the upper end, the measurement tube is constructed in such a way that, in the measurement tube, the laser beam is focused at the material to be analyzed, specifically bulk material, in particular raw, intermediate, and end products from the processing of potash, magnesium, rock salt, or evaporated salt, but without additional scattering and deflection occurring, such that a plasma of the material to be analyzed is produced within the measurement tube by the laser radiation and the emission spectrum of the material to be analyzed reaches the outlet for outcoupling through the interior of the measurement tube, and scrapers (1, 2) lie on the inner and outer focusing tube wall annularly, preferably at the same vertical height on the focusing tube (3), which scrapers are arranged in such a way that the scrapers can be moved vertically in relation to the focusing tube (3), such that material to be analyzed that adheres to the focusing tube (3) on the inside and outside in the lower region can be scraped off by a relative motion of the focusing tube (3) in relation to the scrapers (1, 2).

Abstract translation: （EN）本发明涉及一种特殊的LIBS测量管聚焦单元，简称为LIBS测量管，用于垂直浸入待分析的材料中，哪种材料以水平流动移动，其特征在于测量管垂直延伸 并且在内部至少在底端处于中空并且至少在底端开口，使得在底端处形成底部边缘，测量管具有用于在激光束中耦合的入口和用于在上端耦合出射光谱的出口 测量管的构造使得在测量管中，激光束聚焦在待分析的材料上，特别是大量材料，特别是来自加工钾，镁的原料，中间产品和最终产品， 岩盐或蒸发的盐，但没有额外的散射和偏转发生，使得待测分析材料的等离子体通过激光辐射在测量管内产生，并且 要分析的材料的发射光谱通过测量管的内部到达出口，用于外耦合的出口，并且刮刀（1,2）环形地位于内聚焦管壁和外聚焦管壁上，优选地在聚焦管上以相同的垂直高度 （3），其中刮板布置成使得刮刀能够相对于聚焦管（3）垂直移动，使得待分析的材料在内部和外部粘附到聚焦管（3） 可以通过聚焦管（3）相对于刮刀（1,2）的相对运动来刮除下部区域。