Method for accurately measuring pulp beating degree

Abstract

The application discloses a kind of methods for accurately measuring pulp beating degree, belong to papermaking technical field.The technical scheme includes the following steps, S1: preliminary preparation, prepare clean and wipe clean beating degree instrument cylinder and electronic balance;S2: distilled water is poured into beating degree instrument cylinder, so that beating degree is just at 20°SR, 25°SR, 30°SR, 35°SR, 40°SR, 45°SR, 50°SR, 55°SR, 60°SR, 65°SR, the weight of water in beating degree instrument cylinder is weighed each time with electronic balance, and corresponding test result is recorded;S3: relationship model is established, and the corresponding relationship between beating degree instrument cylinder reading and electronic balance reading is found out;S4: relationship model is verified by multiple measurements.The beating degree obtained by the application is more accurate, which eliminates the error of reading caused by a small amount of water in the cylinder or the non-parallel placement of the beating degree special cylinder, and the insufficient accuracy of the cylinder.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of papermaking, in particular to a method for accurately measuring pulp beating degree. BACKGROUND

[0002] Beating is an indispensable link in the papermaking production process, and the beating degree can be measured to master the degree of fiber cutting, fanning, filamentation and fine fiberization. The beating degree is a comprehensive index of various factors affecting the paper filtration performance, which is related to the cutting and fanning degree of pulp fiber, and is affected by factors such as pulp concentration, temperature, pH value and filler. Therefore, accurate measurement of the beating degree is crucial for the adjustment of paper machine operation and process.

[0003] At present, the beating degree detector commonly used in China is a beating degree detector, and the main measurement method is through a measuring cylinder made of organic glass. The scale of the measuring cylinder is one grid per one, such as 23°SR and 24°SR, which are estimated by reading. Whether the water in the measuring cylinder is completely poured out, whether the measuring cylinder is placed on the platform, and whether the standard is GB / T3332-2004, the visual of each person reading the concave liquid surface will affect the accuracy of the data. Therefore, a method for accurately measuring the beating degree is needed to be developed. SUMMARY

[0004] The technical problem to be solved by the present application is to overcome the shortcomings of the prior art, provide a method for accurately measuring the beating degree of pulp, and establish the corresponding relationship between the reading of the beating degree detector and the reading of the electronic balance. By measuring the beating degree on the electronic balance before each measurement, the beating degree can be more accurate.

[0005] The technical scheme of the present application is: a method for accurately measuring the beating degree of pulp, comprising the following steps:

[0006] S1: preparation, prepare clean beating degree detector and electronic balance;

[0007] S2: pour distilled water into the beating degree detector, so that the beating degree is just at 20°SR, 25°SR, 30°SR, 35°SR, 40°SR, 45°SR, 50°SR, 55°SR, 60°SR, 65°SR, weigh the weight of water in the beating degree detector each time with the electronic balance, and record the test results correspondingly;

[0008] S3: establish a relationship model to find the corresponding relationship between the reading of the beating degree detector and the reading of the electronic balance;

[0009] S4: verify the relationship model by multiple measurements.

[0010] Preferably, the electronic balance in S1 has a range of 0-2000g and an accuracy of 0.01g.

[0011] Preferably, the correspondence between the pulp consistency meter cylinder reading and the electronic balance reading in S3 is pulp consistency (°SR) = -0.100 * electronic balance reading (g) + 100.0.

[0012] Preferably, in S2, the pulp consistency meter cylinder is cleaned before each water pouring and the electronic balance is calibrated.

[0013] Compared with the prior art, the present application has the following beneficial effects:

[0014] 1. The present application establishes the correspondence between the pulp consistency meter cylinder reading and the electronic balance reading, and each measurement of pulp consistency mainly measures the calibration of the pulp consistency special cylinder on the electronic balance before measurement, which can eliminate the measurement error caused by a small amount of water in the cylinder or the non-parallel placement of the pulp consistency special cylinder, and the obtained pulp consistency is more accurate; 2. The correspondence between the pulp consistency meter cylinder reading and the electronic balance reading is pulp consistency (°SR) = -0.100 * electronic balance reading (g) + 100.0, which can accurately measure the pulp consistency to one decimal place, which makes up for the problem of insufficient accuracy of the commonly used pulp consistency special measuring device in China, is more accurate, avoids the deviation caused by measurement error to adjust the grinding power, improves the stability of product quality, reduces the energy consumption in the production process, and saves production cost. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a correspondence diagram between the pulp consistency meter cylinder reading and the electronic balance reading of the present application. DETAILED DESCRIPTION EMBODIMENT

[0016] The present embodiment provides a method for accurately measuring pulp consistency, comprising the following steps:

[0017] S1: Preparation, prepare a clean pulp consistency meter cylinder and an electronic balance, the electronic balance has a range of 0-2000g and an accuracy of 0.01g, the pulp consistency meter cylinder is produced by Hangzhou Yantec Technology Co., Ltd., the pulp consistency meter cylinder itself has a weight of about 500g, in order to ensure that all test weights are within the range of the electronic balance, the maximum weight of water in the pulp consistency meter cylinder is 900g, and the analytical balance has an accuracy of 0.01g, which improves the measurement accuracy;

[0018] S2: Pour distilled water into the beating degree instrument cylinder, so that the beating degree is just at 20°SR, 25°SR, 30°SR, 35°SR, 40°SR, 45°SR, 50°SR, 55°SR, 60°SR, 65°SR, weigh the weight of water in the beating degree instrument cylinder each time with an electronic balance, and record the test results correspondingly, wipe the beating degree instrument cylinder clean and peel off the electronic balance before pouring water each time, and the specific conditions are shown in Table 1;

[0019] S3: Establish a relationship model to find the corresponding relationship between the beating degree instrument cylinder reading and the electronic balance reading, in the Excel table, select the beating degree and the weight of water in the corresponding cylinder, find the relationship between the beating degree and the corresponding water weight by inserting a scatter plot, adding a trend chart and displaying a formula, as shown in Figure 1 The corresponding relationship is beating degree (°SR) =-0.100*electronic balance reading (g) +100.0.

[0020] S4: Verify the relationship model by multiple measurements, wipe the beating degree instrument cylinder clean, pour distilled water of different weights into the cylinder at will, compare the calculation results of the above formula with the cylinder reading results, and the results are shown in Table 2.

[0021] Table 1

[0022]

[0023] Table 2

[0024]

[0025] As can be seen from Table 2, the calculated beating degree is basically close to the beating degree instrument cylinder direct reading value, the calculated beating degree is accurate to one decimal place, and the measurement is more accurate.

[0026] The corresponding relationship between the beating degree instrument cylinder reading and the electronic balance reading is beating degree (°SR) =-0.100*electronic balance reading (g) +100.0, which can accurately measure the beating degree to one decimal place, makes up for the problem of insufficient accuracy of the beating degree special measurement commonly used in China at present, is more accurate, reduces the energy consumption in the production process, and saves the production cost.

[0027] Although the present application has been described in detail through preferred embodiments, the present application is not limited thereto. Those skilled in the art can make various equivalent modifications or replacements to the embodiments of the present application without departing from the spirit and essence of the present application, and these modifications or replacements shall be within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method of accurately measuring the beating degree of a pulp, characterized by, It comprises the following steps: S1: preliminary preparation, prepare the clean and clean the beating degree instrument cylinder and electronic balance; S2: pour distilled water into the beating degree instrument cylinder, so that the beating degree is just in 20°SR, 25°SR, 30°SR, 35°SR, 40°SR, 45°SR, 50°SR, 55°SR, 60°SR, 65°SR, weigh the weight of water in the beating degree instrument cylinder each time with the electronic balance, and record the test results correspondingly; S3: establish a relationship model to find out the corresponding relationship between the beating degree instrument cylinder reading and the electronic balance reading; S4: verify the relationship model by multiple measurements; The beating degree instrument in S3 The correspondence between the cylinder reading and the electronic balance reading is the degree of beating (°SR) = 0.100 * electronic balance reading (g) + 100.0.​ 2. The method of accurately measuring the beating degree of pulp according to claim 1, wherein, The electronic balance in S1 has a range of 0 2000 g with an accuracy of 0.01 g.

3. The method of accurately measuring the beating degree of pulp according to claim 1, wherein, The beating degree instrument cylinder is cleaned before pouring water each time in S2 and the electronic balance is peeled off.

Images