CN112098264A - Device and process for discriminating easily soluble and good-viscosity polyvinyl alcohol - Google Patents
Device and process for discriminating easily soluble and good-viscosity polyvinyl alcohol Download PDFInfo
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- CN112098264A CN112098264A CN202010972829.3A CN202010972829A CN112098264A CN 112098264 A CN112098264 A CN 112098264A CN 202010972829 A CN202010972829 A CN 202010972829A CN 112098264 A CN112098264 A CN 112098264A
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- polyvinyl alcohol
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- 229920002451 polyvinyl alcohol Polymers 0.000 title claims abstract description 75
- 239000004372 Polyvinyl alcohol Substances 0.000 title claims abstract description 73
- 238000000034 method Methods 0.000 title claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 105
- 239000003292 glue Substances 0.000 claims abstract description 66
- 238000009835 boiling Methods 0.000 claims abstract description 60
- 238000010438 heat treatment Methods 0.000 claims abstract description 43
- 239000002245 particle Substances 0.000 claims abstract description 37
- 239000007788 liquid Substances 0.000 claims abstract description 20
- 238000002347 injection Methods 0.000 claims abstract description 17
- 239000007924 injection Substances 0.000 claims abstract description 17
- 238000005303 weighing Methods 0.000 claims abstract description 13
- 238000012216 screening Methods 0.000 claims description 9
- 238000002791 soaking Methods 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000004308 accommodation Effects 0.000 claims description 2
- 230000006978 adaptation Effects 0.000 claims description 2
- 239000008187 granular material Substances 0.000 claims description 2
- 238000010411 cooking Methods 0.000 abstract description 2
- 235000019422 polyvinyl alcohol Nutrition 0.000 description 50
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 2
- 239000003502 gasoline Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 description 2
- SCYULBFZEHDVBN-UHFFFAOYSA-N 1,1-Dichloroethane Chemical compound CC(Cl)Cl SCYULBFZEHDVBN-UHFFFAOYSA-N 0.000 description 1
- 229920002978 Vinylon Polymers 0.000 description 1
- DHKHKXVYLBGOIT-UHFFFAOYSA-N acetaldehyde Diethyl Acetal Natural products CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 description 1
- 125000002777 acetyl group Chemical class [H]C([H])([H])C(*)=O 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000013064 chemical raw material Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012850 discrimination method Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Images
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
- G01N5/04—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by removing a component, e.g. by evaporation, and weighing the remainder
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/38—Diluting, dispersing or mixing samples
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/44—Sample treatment involving radiation, e.g. heat
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
- G01N11/10—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by moving a body within the material
- G01N11/16—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by moving a body within the material by measuring damping effect upon oscillatory body
- G01N11/162—Oscillations being torsional, e.g. produced by rotating bodies
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The invention is suitable for the technical field of polyvinyl alcohol, and provides a device and a process for discriminating soluble polyvinyl alcohol with good viscosity, wherein the device comprises a glue boiling pool, a heating plate, a water injection device, a viscometer and a weighing instrument, wherein the viscometer and the weighing instrument are matched with the glue boiling pool, the viscometer is used for detecting the viscosity of liquid in the glue boiling pool, the weighing instrument is used for detecting the weight of residual polyvinyl alcohol particles, and the heating plate is fixed at the bottom of the glue boiling pool; firstly, polyvinyl alcohol particles to be screened enter water, the quality is judged according to the solubility of the polyvinyl alcohol particles, then, the polyvinyl alcohol particles are placed into the water and heated for cooking, and the viscosity of liquid in a glue boiling pool is detected by a viscometer after a certain time, the larger the value of the viscometer is, the better the viscosity is, the method is suitable for the polyvinyl alcohol particles produced by most different manufacturers, the process is simple and convenient, and unnecessary troubles are reduced.
Description
Technical Field
The invention belongs to the technical field of polyvinyl alcohol, and particularly relates to a device and a process for discriminating easily soluble polyvinyl alcohol with good viscosity.
Background
Polyvinyl alcohol: organic compounds, white flaky, flocculent or powdery solids, no odor. Is soluble in water (above 95 deg.C), slightly soluble in dimethyl sulfoxide, and insoluble in gasoline, kerosene, vegetable oil, benzene, toluene, dichloroethane, carbon tetrachloride, acetone, ethyl acetate, methanol, and ethylene glycol. Polyvinyl alcohol is an important chemical raw material, and is used for manufacturing polyvinyl acetal, gasoline-resistant pipelines, vinylon synthetic fibers, fabric treating agents, emulsifiers, paper coatings, adhesives, glue and the like.
Due to the fact that different polyvinyl alcohol manufacturers have different raw materials, equipment, processes and the like, the produced polyvinyl alcohol is very different, and therefore, different polyvinyl alcohol screening methods are different, and further unnecessary troubles are caused.
Disclosure of Invention
The invention provides a device and a process for discriminating easily soluble polyvinyl alcohol with good viscosity, and aims to solve the problem that unnecessary troubles are caused due to different discrimination methods of different polyvinyl alcohols because polyvinyl alcohols produced by various polyvinyl alcohol manufacturers are greatly different in raw materials, equipment, processes and the like.
The invention is realized in such a way that the device for discriminating the easily soluble polyvinyl alcohol with good viscosity comprises a glue boiling pool, a heating plate, a water injection device, a viscometer and a weighing instrument, wherein the viscometer and the weighing instrument are matched with the glue boiling pool, the viscometer is used for detecting the viscosity of liquid in the glue boiling pool, the weighing instrument is used for detecting the weight of residual polyvinyl alcohol particles, the heating plate is fixed at the bottom of the glue boiling pool, the water injection device is fixed on the outer wall of the glue boiling pool, and one end of the water injection device is communicated with the inside of the glue boiling pool.
Preferably, the water injection device comprises a water delivery pump and a water delivery pipe, the water delivery pump is fixed on the outer wall of the glue boiling pool, the water inlet and the water outlet of the water delivery pump are both fixedly connected with the water delivery pipe, the water outlet of the water delivery pump is communicated with the inside of the glue boiling pool through the water delivery pipe, and the water inlet is communicated with an external water tank through the water delivery pipe.
Preferably, the outer wall of the glue boiling pool is marked with scales for judging the water injection amount in the glue boiling pool.
Preferably, the heating plate comprises a touch screen and a controller, the touch screen is fixed on the outer wall of the heating plate, and the controller is connected with the touch screen and used for transmitting and displaying data.
Preferably, the heating plate further comprises a timer and an alarm, and the timer and the alarm are connected with the controller and used for sending and executing control instructions.
A discrimination process of easily soluble and high-viscosity polyvinyl alcohol comprises the following steps:
step S100: taking materials, and soaking in water;
step S200: judging the quality according to the accommodation degree of the polyvinyl alcohol;
step S300: taking polyvinyl alcohol with high quality;
step S400: putting into water and heating to boil the glue;
step S500: detecting the viscosity of the glue liquid by adopting a viscometer;
step S600: and performing secondary quality judgment according to the viscosity degree.
Preferably, in step S100, 5 kg of polyvinyl alcohol is taken and soaked in 40 kg of normal temperature water.
Preferably, in step S200, it is determined that the polyvinyl alcohol particles are 95% soluble in water to be of good quality.
Preferably, in the step S300, 40 kg of the polyvinyl alcohol particles having been judged to be excellent in the step S200 is required.
Preferably, in step S300, 40 kg of the polyvinyl alcohol particles are required to be placed in 360 kg of water.
Compared with the prior art, the invention has the beneficial effects that: the invention relates to a device and a process for discriminating soluble polyvinyl alcohol with good viscosity, which comprises the steps of firstly putting polyvinyl alcohol particles to be discriminated into water, judging the quality according to the solubility of the polyvinyl alcohol particles, then putting the polyvinyl alcohol particles into the water, heating, cooking, and detecting the viscosity of liquid in a glue boiling pool by using a viscometer after a certain time, wherein the larger the value of the viscometer is, the better the viscosity is, the method is suitable for the polyvinyl alcohol particles produced by most different manufacturers, the process is simple and convenient, and unnecessary troubles are reduced.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of the system of the present invention;
FIG. 3 is a flow chart of a method of the present invention;
in the figure: 1. boiling a glue pool; 2. heating the plate; 21. a touch screen; 22. a controller; 23. a timer; 24. an alarm; 3. a water delivery pump; 4. a water delivery pipe; 5. a viscometer; 6. a weighing instrument.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides an easily dissolve, the device of discriminating of good polyvinyl alcohol of viscidity, including boiling gluey pond 1, heating plate 2, the water injection device, viscosimeter 5 and weighing instrument 6 all with boil gluey pond 1 looks adaptation, viscosimeter 5 is used for the viscosity detection to boiling 1 inside liquid in gluey pond, weighing instrument 6 is used for detecting the weight of remaining polyvinyl alcohol granule, heating plate 2 is fixed in boils the bottom of gluing pond 1, the water injection device is fixed in boils the outer wall in gluey pond 1, and the one end of water injection device is linked together with boiling gluey pond 1 is inside.
In the embodiment, when the quality of the polyvinyl alcohol particles needs to be screened, 5 kg of polyvinyl alcohol fixed particles needing to be screened can be taken firstly, then the inside of the glue boiling pool 1 is filled with water, water in the external water tank is conveyed to the inside of the glue boiling pool 1 through the water conveying pipe 4 by the water conveying pump 3, the amount of the injected water is judged according to the scale setting on the outer wall of the glue boiling pool 1, when the amount of the injected water reaches 45 kg, namely 45 liters of water, the injection can be stopped, then 5 kg of polyvinyl alcohol fixed particles can be put into the glue boiling pool 1 and soaked in the water for 6 hours, at the moment, the inside of the glue boiling pool 1 needs to be stirred, when the soaking time reaches 6 hours, the remaining polyvinyl alcohol fixed particles can be taken out from the inside of the glue boiling pool 1, and the remaining solid particles are weighed by the weighing device 6, comparing with the original weight of 45 kg, the missing part indicates that the polyvinyl alcohol particles are blended into the water in the glue boiling pool 1, when 95% of polyvinyl alcohol fixing body particles are melted into the water, the polyvinyl alcohol particles are excellent, then 40 kg of the polyvinyl alcohol particles with excellent quality are taken, the liquid in the glue boiling pool 1 is discharged by using a drain pipe, then 360 kg of water is injected into the glue boiling pool 1 by using a water delivery pump 3, 40 kg of the polyvinyl alcohol particles with excellent quality are placed into the glue boiling pool 1, and the glue boiling pool 1 is heated by using the heating plate 2, at the same time, a worker can set the timer 23 in the heating plate 2 by using the touch screen 21, the heating time of the heating plate 2 is set to be 2 hours, meanwhile, the temperature sensor is also arranged in the glue boiling pool 1 and connected with the controller 22 and the touch screen 21, the temperature sensor is used for detecting the temperature of liquid in the glue boiling pool, and the temperature of the glue needs to be heated and controlled to be 60-80 ℃ in 2-hour heating of the heating plate 2, wherein when the temperature detected by the temperature sensor is about to exceed a set temperature interval or exceeds the set temperature interval, the controller 22 controls the alarm 24 to give an alarm to prompt a worker, the heating plate 2 stops heating immediately until the temperature of the liquid returns to a stability interval, and after 2 hours, the viscometer 5 can be used for detecting the viscosity of the liquid in the glue boiling pool 1 (the viscometer 5 rotates in the glue liquid through a rotor, the larger the resistance obtained by rotation is, the better the viscosity is, the smaller the resistance is, the lower the viscosity is), and the larger the value of the viscometer 5 is, the better the viscosity is. (see the following Table for data for discrimination of experimental polyvinyl alcohol particles)
Further, the water injection device comprises a water delivery pump 3 and a water delivery pipe 4, the water delivery pump 3 is fixed on the outer wall of the glue boiling pool 1, the water inlet and the water outlet of the water delivery pump 3 are both fixedly connected with the water delivery pipe 4, the water outlet of the water delivery pump 3 is communicated with the inside of the glue boiling pool 1 through the water delivery pipe 4, and the water inlet is communicated with an external water tank through the water delivery pipe 4; the outer wall of the glue boiling pool 1 is marked with scales for judging the water injection amount inside the glue boiling pool 1.
In the embodiment, in the using process, the water in the external water tank is conveyed to the inside of the glue boiling pool 1 through the water conveying pipe 4 by the water conveying pump 3, and the injected water amount is judged according to the scale setting on the outer wall of the glue boiling pool 1.
Further, the heating plate 2 comprises a touch screen 21 and a controller 22, the touch screen 21 is fixed on the outer wall of the heating plate 2, and the controller 22 is connected with the touch screen 21 and used for data transmission and display.
In this embodiment, during the use process, the operator can use the touch screen 21 to set the timer 23 in the heating plate 2, the heating time of the heating plate 2 is set to 2 hours, and then the temperature data sent by the temperature sensor to the controller is transmitted to the inside of the touch screen and displayed on the touch screen for the operator to watch.
Further, the heating plate 2 further comprises a timer 23 and an alarm 24, and both the timer 23 and the alarm 24 are connected with the controller 22 and used for controlling the sending and execution of commands.
In the present embodiment, in the using process, when the temperature detected by the temperature sensor is about to exceed or exceeds the set temperature interval, the controller 22 will control the alarm 24 to give an alarm, prompt the operator, and immediately stop heating the heating plate 2 until the liquid temperature returns to the stability interval.
Referring to fig. 3, a discrimination process of easily soluble and highly viscous polyvinyl alcohol includes the following steps:
step S100: taking materials, and soaking in water;
step S200: judging the quality according to the dissolution degree of the polyvinyl alcohol particles;
step S300: taking polyvinyl alcohol with high quality;
step S400: putting into water and heating to boil the glue;
step S500: detecting the viscosity of the glue liquid by adopting a viscometer 5;
step S600: and performing secondary quality judgment according to the viscosity degree.
In the embodiment, 5 kg of polyvinyl alcohol fixed particles to be screened can be taken firstly, then the interior of the glue boiling pool 1 is filled with water, water in the exterior water tank is conveyed to the interior of the glue boiling pool 1 through the water conveying pipe 4 by the water conveying pump 3, the amount of the filled water is judged according to the scale setting on the outer wall of the glue boiling pool 1, when the amount of the filled water reaches 45 kg, namely 45 liters of water, the filling can be stopped, then 5 kg of polyvinyl alcohol fixed particles can be put into the glue boiling pool 1 and soaked in the water for 6 hours, at the moment, the interior of the glue boiling pool 1 needs to be stirred, when the soaking time reaches 6 hours, the rest of polyvinyl alcohol fixed particles can be taken out from the interior of the glue boiling pool 1, the rest of polyvinyl alcohol fixed particles can be weighed by the weighing device 6 and compared with the original weight of 45 kg, the missing part of the polyvinyl alcohol fixed particles can be blended into the water in the interior of the glue boiling pool 1, when 95% of polyvinyl alcohol fixed body particles are melted in water, the polyvinyl alcohol particles are indicated to be excellent, then 40 kg of the polyvinyl alcohol particles with excellent quality are taken, liquid in the glue boiling pool 1 is discharged by using a drain pipe, then 360 kg of water is injected into the glue boiling pool 1 by using the water conveying pump 3 again, 40 kg of the polyvinyl alcohol particles with excellent quality are put into the glue boiling pool 1, and the glue boiling pool 1 is heated by using the heating plate 2, at the moment, a worker can set a timer 23 in the heating plate 2 by using the touch screen 21, the heating time of the heating plate 2 is set to be 2 hours, meanwhile, a temperature sensor is also arranged in the glue boiling pool 1 and connected with the controller 22 and the touch screen 21, the temperature of the liquid in the glue boiling pool is detected by using the temperature sensor, and in the heating of the heating plate 2 for 2 hours, the temperature of the glue needs to be heated and controlled to be between 60 ℃ and 80 ℃, wherein when the temperature detected by the temperature sensor is about to exceed or exceeds a set temperature interval, the controller 22 controls the alarm 24 to give an alarm to prompt a worker, the heating plate 2 stops heating immediately until the liquid temperature returns to the stability interval, and after 2 hours, the viscometer 5 can be used for detecting the viscosity of the liquid in the glue boiling pool 1 (the viscometer 5 rotates in the glue liquid through a rotor, the larger the resistance obtained by the rotation is, the better the viscosity is, the smaller the resistance is, the better the viscosity is), and the larger the value of the viscometer 5 is, the better the viscosity is.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A device for discriminating easily soluble polyvinyl alcohol with good viscosity is characterized in that: including boiling gluey pond, heating plate, water injection device, viscometer and weighing instrument all with boil gluey pond looks adaptation, the viscometer is used for the viscosity detection to boiling gluey pond internal liquid, the weighing instrument is used for the weight detection to remaining polyvinyl alcohol granule, the heating plate is fixed in boil the bottom in gluey pond, water injection device is fixed in boil the outer wall in gluey pond, and water injection device's one end with boil gluey pond internal portion and communicate.
2. The easy-to-dissolve and good-viscosity polyvinyl alcohol screening device according to claim 1, wherein: the water injection device comprises a water delivery pump and a water delivery pipe, the water delivery pump is fixed on the outer wall of the glue boiling pool, the water inlet and the water outlet of the water delivery pump are fixedly connected with the water delivery pipe, the water outlet of the water delivery pump is communicated with the inside of the glue boiling pool through the water delivery pipe, and the water inlet is communicated with an external water tank through the water delivery pipe.
3. The easy-to-dissolve and good-viscosity polyvinyl alcohol screening device according to claim 1, wherein: the outer wall of the glue boiling pool is marked with scales for judging the water injection amount inside the glue boiling pool.
4. The easy-to-dissolve and good-viscosity polyvinyl alcohol screening device according to claim 1, wherein: the heating plate comprises a touch screen and a controller, the touch screen is fixed on the outer wall of the heating plate, and the controller is connected with the touch screen and used for transmitting and displaying data. .
5. The easy-to-dissolve and good-viscosity polyvinyl alcohol screening device according to claim 3, wherein: the heating plate further comprises a timer and an alarm, wherein the timer and the alarm are connected with the controller and used for sending and executing control instructions.
6. A discrimination process of easily soluble polyvinyl alcohol with good viscosity is characterized in that: the method comprises the following steps:
step S100: taking materials, and soaking in water;
step S200: judging the quality according to the accommodation degree of the polyvinyl alcohol;
step S300: taking polyvinyl alcohol with high quality;
step S400: putting into water and heating to boil the glue;
step S500: detecting the viscosity of the glue liquid by adopting a viscometer;
step S600: and performing secondary quality judgment according to the viscosity degree.
7. The process for screening soluble and highly viscous polyvinyl alcohol according to claim 6, wherein: in the step S100, 5 kg of polyvinyl alcohol is required to be taken and soaked in 40 kg of normal temperature water.
8. The process for screening soluble and highly viscous polyvinyl alcohol according to claim 6, wherein: in step S200, it is determined that 95% of the polyvinyl alcohol particles are dissolved in water and are of good quality.
9. The process for screening soluble and highly viscous polyvinyl alcohol according to claim 8, wherein: in the step S300, 40 kg of the polyvinyl alcohol particles having the high quality determined in the step S200 should be taken.
10. The process for screening soluble and highly viscous polyvinyl alcohol according to claim 9, wherein: in step S300, 40 kg of the polyvinyl alcohol particles are required to be placed in 360 kg of water.
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| CN202010972829.3A CN112098264A (en) | 2020-09-16 | 2020-09-16 | Device and process for discriminating easily soluble and good-viscosity polyvinyl alcohol |
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| CN202010972829.3A CN112098264A (en) | 2020-09-16 | 2020-09-16 | Device and process for discriminating easily soluble and good-viscosity polyvinyl alcohol |
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Application publication date: 20201218 |