Measuring method based on paper pulp kappa number and portable measuring device
A measurement method and kappa value technology, applied in the field of detection, can solve the problems of low detection speed, difficult to popularize and apply, high price and maintenance cost of the measuring instrument, and achieve the effect of strength prediction and reliability.
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Embodiment approach 1
[0071] This embodiment provides a measurement method based on pulp Kappa number, such as Figure 1 to Figure 18 shown, including:
[0072] Step S110: obtaining the real-time Raman spectrum data of the pulp corresponding to the paper sample to be formed;
[0073] Step S120: According to the real-time Raman spectral data, determine the real-time Raman shift related to the Kappa value, and the real-time Raman intensity corresponding to the real-time Raman shift;
[0074] Step S130: Input the real-time Raman spectral data into a preset kappa value model to obtain real-time kappa value.
[0075] Through the above-mentioned preset Kappa value model, the analysis of Kappa value can be quickly realized through spectral scanning with a small number of pulp samples, and no toxic or corrosive reagents are used in the whole analysis process, which can Fast and non-destructive detection is realized, the detection cost is reduced, and the safety and environmental protection of the experim...
Embodiment approach 2
[0169] This embodiment provides a measurement method based on pulp Kappa number, such as Figure 18 As shown, this embodiment is a further improvement on the above-mentioned embodiment. The improvement is that, after the step of inputting the real-time Raman spectral data into the preset Kappa value model to obtain the real-time Kappa value, there is Include the following steps:
[0170] Step S140: Obtain model parameter value data corresponding to the preset paper strength model; wherein, the model parameter value data includes: a first parameter value corresponding to the Kappa value; The second parameter value corresponding to the process parameter; wherein, the process parameter at least includes: pulp composition, pulp bleaching temperature, paper forming speed, paper forming pressure, bleaching agent content or concentration, fiber length of pulp, etc.; The second parameter value includes a parameter value corresponding to each parameter in the process parameter. Where...
Embodiment 3
[0188] This embodiment also provides a portable measuring device, such as Figure 20 As shown, it includes: a processor; and a memory storing computer-readable instructions. When executed, the computer-readable instructions cause the processor to perform the pulp Kappa value-based measuring method in the first embodiment above.
[0189] With the above-mentioned portable measuring device, the Kappa value can be automatically predicted by the above-mentioned analysis method based on Raman spectroscopy, thereby facilitating the prediction of the strength of the formed paper.
[0190] Specifically, the portable measurement device further includes: a communication module electrically connected to the memory, configured to communicate with an external server, to receive model parameter value data sent by the server, and to update the Kappa value model. Wherein, the model parameter value data in this embodiment also includes model formula parameter values for updating the Kappa val...
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