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DEVICE FOR CONTROLLING A DEINKED CELLULOSE PRODUCTION PLANT WITH STATE ANALYSERS CONSTITUTED OF NEURAL NETWORKS FOR THE WASTE PAPER SUSPENSION
DEVICE FOR CONTROLLING A DEINKED CELLULOSE PRODUCTION PLANT WITH STATE ANALYSERS CONSTITUTED OF NEURAL NETWORKS FOR THE WASTE PAPER SUSPENSION
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机译:用由废纸悬浮液组成的神经网络的状态分析仪控制脱纤维素纤维素生产装置的装置
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PCT No. PCT/EP94/02954 Sec. 371 Date Mar. 19, 1996 Sec. 102(e) Date Mar. 19, 1996 PCT Filed Sep. 5, 1994 PCT Pub. No. WO95/08019 PCT Pub. Date Mar. 23, 1995Apparatus for the operation of a plant for producing deinked pulp with state analysers constructed in the form of neural networks for the waste paper suspension. At least one measuring device (ME) records spectral and/or physical characteristic values (IMf, Mp) of a waste paper suspension (PS). Furthermore, there are closed-loop or open-loop control devices (RS1 . . . RS8) for operating means of a waste paper preparation (AAA) in the plant. According to the invention, there is at least one state analyser (ZA), configured in the form of a neural network (NNg) or a plurality of parallel neural networks (NN1 . . . NN4), for the waste paper suspension (PS). This analyser forms from the characteristic values (IMf, Mp) controlled variables (ST: AB, AZ, FL, AA, AS, AT) for process control of the closed-loop or open-loop control devices (RS1 . . . RS8) of operating means at least of the waste paper preparation (AAA). As controlled variables, the ratio of white to coloured papers (AB), the ratio of illustrated-magazine paper to newsprint paper (AZ), the average fibre length (FL), the ash content (AA), the content of dirt (AS) and/or the content of adhesive contaminants (AT) in the waste paper suspension (PS) are suitable with preference.
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