Analysis and discussion of paper ash rapid detection device and method

This paper mainly aims at the problem that the measurement time of paper ash content is too long, which cannot meet the requirements of rapid detection of ash content in production and scientific research. A device and method for rapid determination of paper ash was proposed, including ceramic fiber muffle furnace, microwave rapid ashing muffle furnace, addition of ashing auxiliary agent, X-ray quantitative analysis, paper strip combustion method, carbonization coefficient method, titration method, etc. , to provide an effective reference for the rapid determination of paper ash. In order to ensure the stability of paper quality, reduce pulp consumption, and reduce ash content fluctuations caused by changes in slurry ratio, filler type, and filler properties [1], detection and control of paper ash has become a must in papermaking research and production. link. However, according to the national standard GB/T 742-2008 Determination of ash content of papermaking raw materials, pulp, paper and cardboard (hereinafter referred to as the national standard method), when measuring paper ash content, carbonization and burning processes are required, and the muffle furnace uses electric heating wire Heating, there are problems such as uneven temperature distribution in the furnace, temperature oscillation, large temperature deviation, slow heating process, long ashing time and cumbersome steps [2], resulting in the inability to guide workshop production and scientific research work in time. In order to solve the problems existing in the muffle furnace and to meet the requirements of rapid detection of ash content in production and scientific research, many scientific research institutions and enterprises have improved the national standard method for the determination of paper ash content to a certain extent, and invented some rapid detection devices for paper ash content and Methods, these devices and methods are introduced in this paper.