A method for determining the drainage capacity of pulp suspensions has been established, expressed as the Schober-Rigler (SR) value. This standard is applicable to various pulp suspensions, but for some pulps with very short fibers (such as heavily beaten hardwood pulp), most of the fibers will pass through the filter, which will cause the SR value to drop irregularly, so this method is not recommended. The vast majority of reliable measurement results should be within the range of 10SR to 90SR values. GB/T 3332-2004 Determination of pulp beating degree (Schober-Rigler method) GB/T3332-2004 standard download decompression password: www.bzxz.net

ICS85.040
National Standard of the People's Republic of China
GB/T3332—2004
Replaces GB/T8532—_82
Pulps—Determination of beating degree (Schopper-Riegler method) (ISO 5267-1:1999, Pulps—Determination of drainability-Part 1:Schopper-Riegler This standard is revised and adopted 1267-1:93 Pulp - Determination of filterability - Part Schober-Schober method. This standard replaces GB/T 3332-1982 (Determination of pulp matte degree) (Schober-Schober method) %: The main changes of this standard and (B/T 3332-1982) are as follows: Add the foreword, revise the relevant contents of the additional instructions of the original standard and Added reference materials, normative documents, reference materials, instruments, test reports, reference materials and Appendix 1. In addition to Appendix A in the original standard, the relevant contents of source standard 1 were put into the appendix of this standard, and were rewritten and revised according to Appendix A of IS05257-1, 1999. The content of Chapter 2 in the standard was put into the appendix of this standard, and was rewritten and revised according to Appendix A of IS05257-1:19; The names of individual items in the original standard were re-listed in this standard, such as sample preparation was changed to specimen preparation steps and the test steps were changed to test steps. The first chapter 4 of the original standard was split and listed separately in this standard. Chapter 6 of this standard is a revision and supplement to Chapter 3 of the original standard. It adds the content about eliminating the reverse phenomenon, modifies the accuracy of the pulp purity adjustment disk from 1 to 0.5. Chapter 7 of this standard is a revision and supplement to Chapter 4 of the original standard, modifies the water temperature accuracy from 11 to 3.5℃, and adds that when reading the SR value, the accuracy of 1SR should be calculated. The technical differences between this standard and ISO are listed in Appendix B! The comparison between the 2008 standard and ISO is listed in Appendix A. The appendices of this standard are normative appendices, and Appendix A, Appendix II and Appendix III are all data appendices. This standard was proposed by the China Light Industry Federation. This standard was established by the National Technical Committee for Standardization of the Manufacturing Industry (SASTC141> is under the jurisdiction of the State Administration of Immigration. The originating unit of this standard is Tianyangshan Border Inspection Bureau and China Paper Research Institute. The main contributors to this standard are Fan Ningming, Piao Jianyong and Mai Di. The previous standards replaced by this standard are: GB/3332-197S, GB/T3332-1982.
This standard is officially interpreted by the National Technical Committee for Industrial Standardization (S4S/1℃141): 1
1 Scope
Determination of pulp beating degree (Schober-Rigler method) GB/T3332-20Q4
This standard specifies a method for determining the suspended water-reducing capacity of pulp, expressed in Schober-Rigler (SR) value. This standard is applicable to all kinds of pulp suspensions, but for some charcoals with very short fibers (such as heavily beaten wood charcoal), since most of the fibers will pass through the sieve, the SR value will be irregular, so it is not difficult to use this method instead. Most effective and reliable determination results should be within the range of 10SR-30SR.
Note: The method of increasing the free adsorption is described in detail in the height method of the "large standard" of G1, G2, G3, G4, G5, G6, G7, G8, G9, G10, G11, G12, G13, G14, G15, G16, G17, G18, G19, G20, G21, G22, G23, G24, G25, G26, G27, G28, G29, G30, G31, G32, G33, G34, G35, G36, G37, G38, G39, G39, G30, G31, G32, G33, G34, G35, G36, G37, G38, G39, G39, G30, G31, G32, G33, G39, G34, G35, G36 ... |tt||Schupper-Ricgler scale value Schupper-Ricglernumbarsale According to this scale, 100mL of drainage is equivalent to SR value 0L of drainage is equivalent to SR value 13.2
Pulp floatation
4 Principle
The paper is floated in the water chamber of the Schupper-Ricgler apparatus. The fiber layer on the reverse screen is filtered into a bottom bucket. The filtrate is collected in a volume with Schupper scale value and the SR value is taken. The value is used to calculate the water content of the pulp. 5 Warning
Conventional laboratory instruments 5.1 Schober's instrument (also known as paper charcoal beating degree tester), as shown in Appendix C, and the maintenance manual of Schober's instrument is provided in Appendix C. 5.2 Schober's scale dial. 6 Preparation of samples Take the decomposed paper flotation sample: If the concentration of the sample is known, take standard distilled water (see Note 1) to dilute the sample to about 0.22%, and determine the pulp concentration according to G/T5399. After obtaining the pulp suspension, dilute it to a concentration of 0.2% + C.C02%. And adjust the temperature to 20.0 °C above 0.5 °C (see Note 2). During the entire process of preparing the sample, avoid being aerated in the form of flotation. Take the pulp from the material preparation system or the experimental equipment. The float value may change with the length of time. In order to avoid the influence of this reverse phenomenon, for the pulp flotation that has been sampled for more than 10 minutes, it should be first subjected to dissociation treatment in a dissolving machine with a rotation speed of 600/min, at a pulp concentration close to the SR value specified for the determination. 1. Since the water content of the water has a significant effect on the floatation of paper, the standard water content should be used in the whole determination process. Note 2: In some places, due to the rapid change of air, the temperature of 25℃ and 5℃ can be used. It should be stated in the test report. In short, the selection of the standard water content at the time of the test should be kept within 15℃.
After the test procedure
, clean the filter and drain chamber of the Schober apparatus (5.1) and finally rinse with water. Place the filter chamber on the filter support and rinse with 20.5℃±0.5℃ water to adjust the temperature of the Schober apparatus (see Note). Close the sealing cone and place the SR measuring cylinder under the side parts with a pulp float of 1m±5 into a clean measuring cylinder. Do not mix the sample at all during the sample change to avoid air entering the material at this stage. Quickly and smoothly place the sample into the drain chamber. The pulp flow should be aligned with the seal cylinder and the surface to avoid the formation of vortex. After the paper float is completely placed in the filter chamber, lift the sealing cone. When the water in the tube cannot be clear, read the SR value. It should be accurate to 1SR..
Note! Due to some reasons, a combination of 25 and 5 degrees can be adopted, but it should be stated in the test report. In short, the selected reference temperature should be kept within 1°C. 5°C, 8. Expression of results
Each test is measured twice: If the difference between the SR values ​​of the repeated measurements is greater than 1°C, the test should be repeated. 9. Test report
The test report should include the following items:
t》Standard number:
5) Data necessary for comprehensive identification of the sample:
d) Measurement results expressed in Schober's law: e) Any abnormal phenomenon observed during the measurement process f) Any operation not specified in the standard or in the specified reference standard, or optional operation that may affect the result.
(material properties)
This standard and IS0 5267-1.1999 chapter number comparison table A.1 gives a list of the comparison of this standard and IS0 5267-1.1999 chapter number. Table A.1 This standard and IS0 5267-1:1999 The end number of the chapter and article shall be in accordance with the chapter and article number of this standard.
Additional Notes A
GB/T3332—2004
Appendix A
Additional Notes B
GB/T3332-204
Appendix B
Material Properties)
This standard is consistent with IS0 5267-1:1999 A table of technical differences and their reasons is given between this standard and 1505267-1, 1999. B.1 Technical differences between this standard and [505267-1:1999] and their reasons This standard shall be used for the period of time except for those contents that have no technical relationship with the standard and the contents of 1501-47:1997 that are referenced.
The standard should comply with the relevant provisions of GB/T],1,
In the standard, it is stipulated that the use of natural water or to high requirements, Appendix
(Normative Appendix)
Schober-Liquid Instrument
GB/T3332-2004
C1 Schober-Liquid Instrument (see Figure (.1) consists of a water filter chamber equipped with a mesh, a sealing shaped body and a lubricating bucket mounted on an appropriate bracket. All components are made of corrosion-resistant materials. The water filter chamber is an inner weight of 137mm. At the bottom of the filter chamber is a 45-degree conical section, which is also connected to a pipe section with a diameter of 12.9 mm to 0.1 mm and a cross-sectional area of ​​100 cm. The conical section forms a support for the sealing cone. The copper mesh is tightly fixed in the circular pipe 25 mm below the conical section. The mesh is horizontal and installed perpendicular to the center line of the circular basket. The thickness of the two is 40 mm, and there are 24 warp threads (0.17 mm twist) and 32 warp threads (0.16 mm thick) every 10 mm. C.2 Sealing male body (see Figure C .1. The outer diameter of C.2) is 120mm, and its conical surface is at an angle of 55° to the vertical. It is mounted on a vertical shaft with an outer diameter of 20mm. A vent hole with a diameter of 10mm passes axially through the sealing body and the shaft so that air can pass through the shaft when the sealing body is lifted. There are two radial vertical blades on the shaft to prevent the suspension from generating vortices. The seal is a 3° hardness image test. The sealing body is lifted at a constant rate of 10mm/s: mm/s. C.3 has a shaped part on the upper part of the dead figure (1 of 4), namely The filter solid support, with a chain seal dimensional body can be accurately aligned with the center of the drain chamber. Below the dimensional part is a round screen with a cross-sectional area of ​​10m and a diameter of 35tm. There is a flat air pressure hole on the surrounding surface: the circular part has three air holes for surrounding the front of the dimensional distributor. The pin-shaped part of the lower part of the circulating bucket is 4 (. There is a separate bottom hole at the tip of the bucket (dimension diagram C.3). When choosing the diameter of the expansion pile, it should be calculated that when 1000ml of 20℃±0.5℃ water enters the funnel, it can flow out within 149-1, that is, the direct control should be about 2, a2 m see Appendix D, D.2.5). 4 The inner diameter of the 7 of the side pipe is 16 ± 0.1 mm and the outer diameter is 19.1 mm. It is inserted into the funnel and forms an angle of 43.0 with the vertical. The lower tongue is cut to form a 12.0 angle with the center of the funnel, and the overflow edge is as close to the center of the funnel as possible. In this way, the volume between the lower edge of the bottom hole and the overflow of the side pipe is 7.0 ml. ~ 8.0 ml. The water content of the side pipe can be as small as possible. A movable sparger (see Appendix C.4) is placed in the funnel to prevent water from entering the side pipe. A support of the sparger is placed slightly in the direction of the mark.
C.5 The scale of the volume quotient should enable the tester to read the Schober value directly. A volume of 1000 ml corresponds to zero SR value, and a volume of m1 corresponds to 1305R value. The distance between two doses should be at least 1.5m, which is equivalent to 10㎡=1R value: 5
GB/T 3332--204
-·-Water-crossing chamber
Retain shape components,
One shape distribution error!
First introduction:
Discharge instrument
Dense material
Figure C, 3 Deer hole
GB/T 3332..-2004
GR/T 3332-2004
Figure C.4 Conical distributor
(Informative annex)
Maintenance of Burr-Regler
GB/T3332—2004
D.1 Burr-Regler instrument base In a vibration-free environment, place the machine level on the top of the machine and level it so that the Burr-Regler instrument is properly positioned on the platform. Turn the level on the required position to check whether the instrument is in a stable and level position.
D.2 Check regularly, the following methods: I.2.1 Check the seal on the filter with a feeler gauge (scratch the gap) to make it close to the filter screen to ensure the effective water area is 1Ucm D.2.2 Check the seal to see if it is in good condition. Pour water into the water and check if the seal is in contact. I.2.3 Check if the instrument is clean and there is no resin deposition. If necessary, it can be cleaned with soap and rinsed thoroughly with water, but special attention should be paid to the iron filter. The filter can be cleaned by measuring the SR value of the tank water. If the SR value is greater than 4, it means that the filter is not clean. If necessary, it can be cleaned with acrylic acid and a relatively strong brush and flushed with a large amount of water. If the filter is in poor condition, it should be replaced. I.2.4 Check the position of the drain pipe according to the following method. Hold the bottom hole with your finger and pour 100L of 20000-9.S℃ water into the required bucket. When the excess water flows out of the drain pipe, drill the bottom hole and collect the water flowing out of the bucket. The volume of this water should be 5 [～8.Cm. If it is not dangerous, set the point source state pipe. Check whether the position of the state is appropriate (Chapter C.4). To make the head correct. D.2.5 Check the diameter of the funnel according to the following method, take the concave chain distributor, plug the outer tube with a stopper, pour 509mL of 20% water into the funnel to fill the side hole, and plug the bottom hole with a finger. Scratch, let the water flow out from the bottom hole, and then plug the bottom hole again. Fill the funnel with 100ml-5mL of 20.0±0.FT water again, and record the time required for all the water to flow out from the bottom hole. The time should be 1498+1. If the time is too short, the bottom hole can be polished with an appropriate tool. If the time is too short, the bottom hole should be replaced. D.2.6 Check the difference between the body and the rise rate. It should be kept at 100mm/6 or 10mr/s.And mounted on a vertical shaft with an outer diameter of 20mm. A vent with a diameter of 10m passes axially through the sealing body and the shaft so that when the sealing body is lifted, air can pass through the shaft. There are two radial vertical blades on the shaft to prevent the suspension from generating vortices. The seal is a 3\ image proof. The sealing body is lifted at a constant rate of 10mm/s:mm/s. The upper part of the seal (1 of 4) has a shaped part, that is, a water filter support, so that the sealing body can be accurately aligned with the center of the drainage chamber. Below the shaped part is a circular screen with a cross-sectional area of ​​1om and a diameter of 35tm. There is a flat air pressure square air hole on the surrounding surface: the circular part has three for surrounding the dimensional distributor. The pin-shaped part at the bottom of the funnel has a separate bottom hole at the tip of the funnel (dimension diagram C.3). When selecting the diameter of the expansion pile, it should be measured that when 1000 ml of 20℃ ± 0.5℃ water is put into the funnel, it can flow out within 149-1, that is, the direct control should be about 2, a2 ​​m (see D.2.5 in Appendix D). .4 The inner diameter of the funnel is 16±0.1 mm and the outer diameter is 19.m.1 mm. It is inserted into the funnel and forms an angle of 43.0 with the vertical. The lower tongue is cut to form a 12.0 angle with the center of the funnel, and the overflow edge is as close to the center of the funnel as possible. At this time, the volume between the lower edge of the bottom hole and the overflow of the side tube is 7.ml.~8.0ml. The water content of the side tube can be as small as possible. A movable sparger (see Figure C.4) is placed in the funnel to prevent water from entering the side tube. A support of the sparger is placed slightly in the direction of the mark.
C.5 The volume scale should enable the tester to read the Schober value directly. A volume of 1000ml corresponds to zero SR value, and a volume of m1 corresponds to a value of 1305R. The distance between two doses should be at least 1.5m, which is equivalent to 10㎡=1R value: 5
GB/T 3332--204
-·-Water-crossing chamber
Retain shape components,
One shape distribution error!
First introduction:
Discharge instrument
Dense material
Figure C, 3 Deer hole
GB/T 3332..-2004
GR/T 3332-2004
Figure C.4 Conical distributor
(Informative annex)
Maintenance of Burr-Regler
GB/T3332—2004
D.1 Burr-Regler instrument base In a vibration-free environment, place the machine level on the top of the machine and level it so that the Burr-Regler instrument is properly positioned on the platform. Turn the level on the required position to check whether the instrument is in a stable and level position.
D.2 Regular inspections are required. Methods: I.2.1 Check the seal on the filter with a feeler gauge (scratch gauge) to ensure that it is firmly attached to the filter screen to ensure that the effective water area is 1Ucm D.2.2 Check the seal to ensure that it is in good condition. Pour water into the water tank to check if the seal is in contact with the filter. I.2.3 Check if the instrument is clean and there is no resin deposition. If necessary, it can be cleaned with soap and rinsed thoroughly with water, but special attention should be paid to the iron filter. The filter can be cleaned by measuring the SR value of the tank water. If the SR value is greater than 4, it means that the filter is not clean. If necessary, it can be cleaned with acrylic acid and a relatively strong brush and flushed with a large amount of water. If the filter is in poor condition, it should be replaced. I.2.4 Check the position of the drain pipe according to the following method. Hold the bottom hole with your finger and pour 100L of 20000-9.S℃ water into the required bucket. When the excess water flows out of the drain pipe, drill the bottom hole and collect the water flowing out of the bucket. The volume of this water should be 5 [～8.Cm. If it is not dangerous, set the point source state pipe. Check whether the position of the state is appropriate (Chapter C.4). To make the head correct. D.2.5 Check the diameter of the funnel according to the following method, take the concave chain distributor, plug the outer tube with a stopper, pour 509mL of 20% water into the funnel to fill the side hole, and plug the bottom hole with a finger. Scratch, let the water flow out from the bottom hole, and then plug the bottom hole again. Fill the funnel with 100ml-5mL of 20.0±0.FT water again, and record the time required for all the water to flow out from the bottom hole. The time should be 1498+1. If the time is too short, the bottom hole can be polished with an appropriate tool. If the time is too short, the bottom hole should be replaced. D.2.6 Check the difference between the body and the rise rate. It should be kept at 100mm/6 or 10mr/s.And mounted on a vertical shaft with an outer diameter of 20mm. A vent with a diameter of 10m passes axially through the sealing body and the shaft so that when the sealing body is lifted, air can pass through the shaft. There are two radial vertical blades on the shaft to prevent the suspension from generating vortices. The seal is a 3\ image proof. The sealing body is lifted at a constant rate of 10mm/s:mm/s. The upper part of the seal (1 of 4) has a shaped part, that is, a water filter support, so that the sealing body can be accurately aligned with the center of the drainage chamber. Below the shaped part is a circular screen with a cross-sectional area of ​​1om and a diameter of 35tm. There is a flat air pressure square air hole on the surrounding surface: the circular part has three for surrounding the dimensional distributor. The pin-shaped part at the bottom of the funnel has a separate bottom hole at the tip of the funnel (dimension diagram C.3). When selecting the diameter of the expansion pile, it should be measured that when 1000 ml of 20℃ ± 0.5℃ water is put into the funnel, it can flow out within 149-1, that is, the direct control should be about 2, a2 ​​m (see D.2.5 in Appendix D). .4 The inner diameter of the funnel is 16±0.1 mm and the outer diameter is 19.m.1 mm. It is inserted into the funnel and forms an angle of 43.0 with the vertical. The lower tongue is cut to form a 12.0 angle with the center of the funnel, and the overflow edge is as close to the center of the funnel as possible. At this time, the volume between the lower edge of the bottom hole and the overflow of the side tube is 7.ml.~8.0ml. The water content of the side tube can be as small as possible. A movable sparger (see Figure C.4) is placed in the funnel to prevent water from entering the side tube. A support of the sparger is placed slightly in the direction of the mark. bZxz.net
C.5 The volume scale should enable the tester to read the Schober value directly. A volume of 1000ml corresponds to zero SR value, and a volume of m1 corresponds to a value of 1305R. The distance between two doses should be at least 1.5m, which is equivalent to 10㎡=1R value: 5
GB/T 3332--204
-·-Water-crossing chamber
Retain shape components,
One shape distribution error!
First introduction:
Discharge instrument
Dense material
Figure C, 3 Deer hole
GB/T 3332..-2004
GR/T 3332-2004
Figure C.4 Conical distributor
(Informative annex)
Maintenance of Burr-Regler
GB/T3332—2004
D.1 Burr-Regler instrument base In a vibration-free environment, place the machine level on the top of the machine and level it so that the Burr-Regler instrument is properly positioned on the platform. Turn the level on the required position to check whether the instrument is in a stable and level position.
D.2 Check regularly, the following methods: I.2.1 Check the seal on the filter with a feeler gauge (scratch the gap) to make it close to the filter screen to ensure the effective water area is 1Ucm D.2.2 Check the seal to see if it is in good condition. Pour water into the water and check if the seal is in contact. I.2.3 Check if the instrument is clean and there is no resin deposition. If necessary, it can be cleaned with soap and rinsed thoroughly with water, but special attention should be paid to the iron filter. The filter can be cleaned by measuring the SR value of the tank water. If the SR value is greater than 4, it means that the filter is not clean. If necessary, it can be cleaned with acrylic acid and a relatively strong brush and flushed with a large amount of water. If the filter is in poor condition, it should be replaced. I.2.4 Check the position of the drain pipe according to the following method. Hold the bottom hole with your finger and pour 100L of 20000-9.S℃ water into the required bucket. When the excess water flows out of the drain pipe, drill the bottom hole and collect the water flowing out of the bucket. The volume of this water should be 5 [～8.Cm. If it is not dangerous, set the point source state pipe. Check whether the position of the state is appropriate (Chapter C.4). To make the head correct. D.2.5 Check the diameter of the funnel according to the following method, take the concave chain distributor, plug the outer tube with a stopper, pour 509mL of 20% water into the funnel to fill the side hole, and plug the bottom hole with a finger. Scratch, let the water flow out from the bottom hole, and then plug the bottom hole again. Fill the funnel with 100ml-5mL of 20.0±0.FT water again, and record the time required for all the water to flow out from the bottom hole. The time should be 1498+1. If the time is too short, the bottom hole can be polished with an appropriate tool. If the time is too short, the bottom hole should be replaced. D.2.6 Check the difference between the body and the rise rate. It should be kept at 100mm/6 or 10mr/s.
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