Consistency of pulp
WebConsistency control is one of the most important and yet common controls in the wet end of a paper machine. Nevertheless, it is at the same time one of the most poorly implemented loops on many paper machines. In this presentation, the several different process objectives with appropriate control strategies will be considered. WebHow consistency control works. •Consistency of the stock in the pipe is d. int. measure. •Measured result is compared to a set point in a controller. •The output from the …
Consistency of pulp
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WebConsistency is one of the most important pulp & paper variables. It affects pulp mill washing & screening efficiency, and bleaching reactions. In the paper mill it affects … Webfor the reaction vessel. The proper consistency should be determined by making a preliminary specific surface determination by the procedure outlined below. It is desirable to have the volume of the pulp suspension about 2000 mL at this point, adjusting the concentration by adding more water or moist pulp. Table 1 may be used as a guide in
Web6.1 Obtain the consistency of the pulp to be hot disintegrated, according to TAPPI T 240 “Consistency (Concentration) of Pulp Suspensions.” 6.1.1 If the pulp is under 10% consistency and the temperature after dilution can be maintained at 90 to 95°C there is no need to thicken the pulp. If the pulp is under 10% consistency and the required ... WebUsually the consistency of a high consistency pulp is in the range of 28% to 32%. Accordingly, the range considered in the present study was 24% to 35%. As shown in …
WebMar 1, 1982 · PDF For a given production rate and pipe diameter, a consistency exits for pumping pulp that minimizes power requirements Find, read and cite all the research you need on ResearchGate WebOur new method of measuring the consistency of a. pulp suspension, in a liquid medium comprises squeezing the liquid gradually out of a measured quantity'of the pulp suspension under a definite constant squeezing'pressure until a final constant volume is reached, measuring the said volume, and comparing this measured volume with calibration data …
WebMar 6, 2016 · “Pulp consistency” is the ratio, by weight or volume as the case may be, between the number of parts of water and the number of parts of solid in a unit of pulp. …
WebSep 1, 2024 · Developed mango pulp contains 0.58 mg carotene/100 g, 4.83 mg gallic acid/g, 245.9 mg ascorbic acid/100 g and 374.4 µM Trolox/100 g, as antioxidant. Microbial counts were less than the standard... meadows on lea hillWebJan 1, 1980 · The compenpulp is a nonlinear function of flow sation algorithms for each device are rate~ temperature~ pH~ absolute value developed on the basis of the … meadows of st johnsWebTranscribed image text: Problem 4 (25) In paper mills, the consistency of pulp suspensions is controlled by changing the dilution water flow. In one such example, the following … meadows on cherry hillWebpulp obtained from the original wood weight. A recovery value of 45% means that for every 100 oven-dry pounds of wood processed, 45 oven-dry pounds of pulp is produced. When expressed in this manner, pulp yield is mainly a function of the pulp-ing process. There is some difference between hard-woods and softwoods when pulped by chemical meadows of worthington mnWebThe end kappa number for 15% pulp consistency after 3 steps washing was 54.3, which was even greater than the value of 53.4 for 35% pulp consistency with only first-step washing. This suggested that one could obtain a better effect using the pulp consistency of 35% after first-step washing than the pulp consistency of 15% after 3 steps washing. meadows of st. patrick murrells inletWebConsistency (concentration) of pulp suspensions 1. Scope 1.1 This method describes the measurement of pulp consistency (concentration) of pulp-water mixtures. 1.2 It is … meadows of valley ridge olatheWebConsistency is one of the most important pulp & paper variables. It affects pulp mill washing & screening efficiency, and bleaching reactions. In the paper mill it affects … meadows on main whitestown opening