TH151680A - Methods for controlling the filling amount of internal chemicals. And a method for measuring the concentration of suspensions. - Google Patents

Abstract

Invention Summary The objective of this science is to provide a method for controlling the amount of the internal chemical additive. It is possible to capture the concentrations of insoluble solids (SS) and the ash content and control their yield appropriately according to the product brand to achieve stability of product quality and improvement of capacity. Production Methods of controlling the amount of additives inside. The assembly includes a procedure in which the pulp water, which is generated in the sheet wire (55) of the paper machine under operating conditions, is collected using the turbidity unit (30); The process when the circulating membrane water collected was stirred The turbidity of the recirculating pulp was measured as the turbidity M1 contributed to the insoluble sludge; The process in which the collected membranes are stationary The turbidity of recirculating juices was measured as turbidity M2 contributing to ash; And the procedure in which the amount of internal chemical being added is controlled on the basis of measured turbidity, with the insoluble suspended solids and the measured turbidity associated with the ash.

Claims (5)

Disclaimer (all) which will not appear on the advertisement page: page 1 of the number 2 disclaimers 1. Methods for controlling the filling amount of internal substances in the paper production process. For paper production from pulp slurry Which method This includes the steps of: Collection of recirculating pulp, which is abandoned in the paper making process under conditions. Scheduled operations; Measuring the turbidity of the recirculating membranes collected in the agitated state as a Turbidity obtained from the suspension that does not dissolve; Measuring the turbidity of circulating water collected in the lying state as a Turbidity obtained from the ash content; And the adjustment of the internal filling amount based on the turbidity obtained from the substance. Non-dissolving suspensions and turbidity obtained from the ash content. Measured 2. Method of claim 1 that also includes the procedure of: intensity calculation. The concentrations of insoluble inorganic pulp suspensions were collected on a turbidity basis. Obtained from insoluble suspensions measured for recirculating pulp water, which was collected; And the calculation of the ash concentration in the recirculating pulp, which was collected on The basis of the turbidity obtained from the ash content. Which was measured for the recirculating water, which was collected. 3. The method of claim 2 that also includes the steps of: Chemical feed of internal substances capable of adjusting the yield of the insoluble suspension and the effect of the ash content in the paper making process on the basis of the calculated concentration of the tar. Non-dissolving suspensions and calculated ash concentrations. 4. The method of claim 3 that also includes additions to the volume adjustment procedure. Addition of the internal substance in a reverse manner so that the concentration of the insoluble suspension was The calculation is to be computed with the target concentration of the insoluble suspension, and the ash concentration corresponding to the target concentration of the ash content. 5.The method of measuring the concentration of suspended materials in paper making process for Paper production from pulp slurry, that method includes a process of recirculating pulp collection, which is created in the paper making process; Measurement of the turbidity of the circulating water collected in the agitated state as Turbidity obtained from insoluble suspensions; Page 2 of the number 2, Calculation of the concentration of insoluble suspensions. In recirculating membranes, which are collected Included on the basis of the turbidity obtained from the measured insoluble suspensions; Measuring the turbidity of circulating water collected in the lying state as a Turbidity obtained from the amount of ash; And to calculate the ash concentration in the recirculating pulp that was collected on a basis Of the turbidity obtained from the measured ash content