CN111707514A - Method for evaluating uniformity of glass batch - Google Patents
Method for evaluating uniformity of glass batch Download PDFInfo
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- CN111707514A CN111707514A CN202010556366.2A CN202010556366A CN111707514A CN 111707514 A CN111707514 A CN 111707514A CN 202010556366 A CN202010556366 A CN 202010556366A CN 111707514 A CN111707514 A CN 111707514A
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- 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
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- 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
- G01N31/16—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using titration
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- 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
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
- G01N2001/2866—Grinding or homogeneising
Abstract
The invention provides a method for evaluating the uniformity of a glass batch, which comprises the following steps: (1) taking 10-20 parts of a glass batch sample, and grinding each part of glass batch respectively to obtain 10-20 parts of grinding materials; (2) respectively dissolving the grinding materials obtained in the step (1) by using hydrochloric acid, and filtering the dissolved solution to obtain filtrate; (3) and (3) respectively measuring the MgO content in each filtrate obtained in the step (2), and calculating the uniformity according to the obtained MgO content. The method can realize accurate measurement of the uniformity of the glass batch under the condition of sampling 10-20 parts, and the accuracy of the uniformity test is improved by taking the MgO content as the uniformity test standard because the MgO content in the glass batch, particularly the cover plate glass batch, is low. The method is simple and convenient to operate, and rapid evaluation of the uniformity of the glass batch is realized.
Description
Technical Field
The invention belongs to the technical field of glass preparation, relates to a method for evaluating the uniformity of a glass batch, and particularly relates to a method for evaluating the uniformity of the glass batch.
Background
The glass batch is the product of mixing different materials, and the essence of the material mixing process is to reduce or eliminate the difference between two or more kinds of powder. Such differences are manifold and simultaneous, such as chemical composition, density, particle size, substance concentration, and mixing time, among others. The greater the difference between the materials, the less easily the materials can be mixed. The main purpose of mixing in the glass industry is therefore to eliminate the differences in chemical composition between the different materials in order to facilitate the homogeneous progress of the chemical reactions during melting. There are still differences in the glass batch obtained by mechanical mixing through the compounder, and uniformity is a measure of such differences.
The prior art methods for determining the homogeneity of glass batch materials include conductivity, light reflection density and pH titration, as is known in Yanlun entitled glass batch homogeneity (glass and enamel 1999,12(6): 39-49). The method comprises the steps of measuring the content of sodium carbonate in the batch by the consumption of hydrochloric acid, and calculating the content difference of sodium carbonate in each batch to obtain the uniformity of the glass batch, wherein certain glass batches contain sodium carbonate and potassium carbonate and/or calcium oxide with high mass fraction, so that the measurement of the uniformity of the glass batch is directly influenced.
The conductivity rule is that the uniformity is calculated by measuring and calculating the conductivity of each part of glass batch, and sodium carbonate and sodium sulfate in the glass batch provide the main oxides Na of the glass2And O, the two salts can be completely dissolved in water, and the charged particles generated after dissolution move under the influence of an electric field to transfer electrons, thereby finally showing the conductive property. However, the glass batch not only contains sodium carbonate and sodium sulfate, but also potassium salt in the glass batch has influence on the numerical value of the conductivity, and the mass fraction of the soluble sodium salt and the soluble potassium salt in the glass batch is generally more than 20 percentThe uniformity of the glass batch measured by the conductivity method has the defect of large error.
The light reflection density law is that parallel light emitted by a light source is projected on the surface of powder according to the capacity of reflecting light on the surface of glass batch, the reflection capacity of the powder can be obtained according to the relation between the luminous flux of incident light and the luminous flux of reflected light, and then the light reflection density of the powder is obtained through photoelectric signal conversion. Generally, the light reflection capability depends on the light absorption performance and the surface roughness of the solid surface, and the accuracy of the value obtained by the light reflection density method is directly influenced by the thickness of the powder to be measured and the sample preparation condition, so that the measurement error is large during the measurement by the light reflection density method.
CN 103323479a discloses a method for measuring the uniformity of glass batch, comprising the following steps: (1) preparing a sample: preparing a glass batch sample and a glass batch standard sample into a glass batch sample piece and a glass batch standard sample piece which are suitable for measurement of an X-ray fluorescence spectrometer; (2) making a standard curve: preparing a standard curve corresponding to each element or each oxide by adopting a glass batch standard sample; (3) determination of the ingredients in the glass batch samples: measuring the fluorescence X-ray intensity of each element in the glass batch sample by using an X-ray fluorescence spectrometer, and calculating the content of each element or each oxide in the glass batch sample according to a standard curve corresponding to each element or each oxide; (4) and calculating the uniformity of the glass batch according to the calculated content of each element or each oxide of the glass. The measuring method needs to measure the contents of multiple groups of elements and needs to use an X-ray fluorescence spectrometer, and the equipment cost and the time cost of measurement are high.
Along with the requirement on the glass quality is higher and higher, the requirement on the uniformity of the glass batch inevitably exists, so that the method which is simple in batch uniformity test and high in accuracy is provided, the quality of glass preparation is favorably improved, and the efficiency of glass preparation is improved.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a method for evaluating the uniformity of a glass batch, in particular to a method for evaluating the uniformity of a cover plate glass batch, which can realize simple and rapid measurement of the glass batch under the condition of less sampling quantity and has smaller measurement error.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a method for rapidly evaluating the uniformity of a glass batch, which comprises the following steps:
(1) taking 10-20 parts of a glass batch sample, and grinding each part of glass batch respectively to obtain 10-20 parts of grinding materials;
(2) respectively dissolving the grinding materials obtained in the step (1) by using hydrochloric acid, and filtering the dissolved solution to obtain filtrate;
(3) and (3) respectively measuring the MgO content in each filtrate obtained in the step (2), and calculating the uniformity according to the obtained MgO content.
The method provided by the invention utilizes the characteristics that the MgO in the glass batch is low in mass percentage and is easy to dissolve in hydrochloric acid, and can realize the rapid measurement of the uniformity of the glass batch only by taking a small amount of glass batch samples. Because the sampling is less and the cost of hydrochloric acid is lower, the method provided by the invention has the characteristics of simple and convenient operation, economy and high measurement accuracy.
The sampling part of the glass batch sample is 10-20 parts, such as 10 parts, 12 parts, 15 parts, 16 parts, 18 parts or 20 parts, but the sampling part is not limited to the enumerated values, and other non-enumerated values in the numerical range are also applicable; the skilled person can select a proper sampling part within 10-20 parts according to the total amount and sampling amount of the glass batch of the same batch, and the uniformity can be measured within the value range to obtain better effect.
When the sampling number of the glass batch sample exceeds 20 parts, the uniformity of the glass batch can be determined and higher accuracy can be obtained, but the increase of the sampling number increases the total sampling amount and the subsequent consumption of hydrochloric acid, and is not beneficial to reducing the measurement cost. When the number of sampled parts is less than 10 parts, a smaller amount of sample is disadvantageous for improving the accuracy of the final result.
The formula for calculating the uniformity is as follows:
H＝100％-E
in the above formula: h is the uniformity, E is the relative dispersion, S is the mean square error,
is an average value, n is the number of samples, XiThe MgO content of the i-th sample was measured. The relative dispersion E of MgO is calculated by the above formula, and the uniformity of the glass batch is H100% -E.
Preferably, the glass batch is a cover glass batch.
The cover plate glass has higher requirement on the uniformity of the glass batch, and the uniformity of the batch cannot be accurately measured by measuring the sodium carbonate by using a conventional conductivity method, a light reflection density method or a titration method. In contrast, the invention selects the necessary component MgO in the cover plate glass batch as the measuring object, and measures the MgO with relatively less mass fraction, thereby improving the accuracy of uniformity detection and overcoming the K2O and Na2The measurement error caused by high and unstable O content.
Preferably, the cover plate glass batch comprises the following components in percentage by mass: al (Al)2O34.5-21％，CaO 0-6％，MgO 3-10％，K2O1-5% and Na210-15% of O and the balance of SiO2。
The cover glass includes low-aluminum cover glass, medium-aluminum cover glass and high-aluminum cover glass, wherein the content of CaO in the medium-aluminum cover glass batch and the high-aluminum cover glass batch is 0%, and the content of CaO in the low-aluminum cover glass batch is 0 to 6%, but not 0%, and for example, 0.5%, 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, 5%, 5.5% or 6%, but not limited to the recited values, and other values not recited in the numerical range are also applicable.
Al in the cover plate glass batch2O3The percentage by mass of (B) is 4.5 to 21%, and may be, for example, 4.5%, 5%, 8%, 10%, 12%, 15%, 16%, 18% or 21%, but is not limited to the values recited, and other values not recited in the numerical range are also applicable.
The percentage by mass of MgO in the cover glass batch is 3-10%, for example 3%, 4%, 5%, 6%, 7%, 8%, 9% or 10%, but is not limited to the values listed, and other values not listed in the range of values are equally applicable.
K in the cover plate glass batch2The percentage by mass of O is 1 to 5%, and may be, for example, 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5% or 5%, but is not limited to the recited values, and other values not recited in the numerical range are also applicable.
Na in the cover plate glass batch2The percentage by mass of O is 10 to 15%, and may be, for example, 10%, 11%, 12%, 13%, 14% or 15%, but is not limited to the values recited, and other values not recited in the numerical range are also applicable.
Preferably, the grinding material in the step (1) is undersize obtained by sieving with a 200-mesh sieve after grinding.
Preferably, the hydrochloric acid in step (2) has a concentration of 1 to 5mol/L, for example, 1mol/L, 2mol/L, 3mol/L, 4mol/L or 5mol/L, but is not limited to the recited values, and other values not recited in the numerical range are also applicable.
Preferably, the dissolving temperature in step (2) is 80-90 ℃, for example, 80 ℃, 81 ℃, 82 ℃, 83 ℃, 84 ℃, 85 ℃, 86 ℃, 87 ℃, 88 ℃, 89 ℃ or 90 ℃, but not limited to the recited values, and other values not recited in the numerical range are also applicable; the time is 5-30min, for example 5min, 10min, 15min, 20min, 25min or 30min, but is not limited to the values listed, and other values not listed in the numerical range are equally applicable.
Preferably, the solid-to-liquid ratio of each part of the grinding material and the hydrochloric acid in the step (2) is 1 (2-10), and can be, for example, 1:2, 1:4, 1:5, 1:6, 1:8 or 1:10, but is not limited to the enumerated values, and other unrecited values in the numerical range are also applicable, and the unit of the solid-to-liquid ratio is g/mL.
Preferably, the determination in step (3) is performed after the MgO content in each filtrate is adjusted to 0.01 to 2 mass% of Mg ions in each filtrate, and may be, for example, 0.01%, 0.05%, 0.1%, 0.3%, 0.5%, 0.8%, 1%, 1.2%, 1.5%, 1.8%, or 2%, but is not limited to the values recited, and other values not recited in the numerical range are also applicable.
Preferably, the determination method comprises atomic absorption spectrometry and/or titrimetry, preferably titrimetry.
The titration analysis method is simple and feasible, and can complete the determination of magnesium ions without large-scale determination equipment, and the titration analysis method disclosed by GB/T9857-1988.
Preferably, the specific operation of taking 10-20 parts of the glass batch sample in the step (1) is as follows: 10-20 parts of glass batch samples of the same batch are taken at a feed opening of the mixer according to time intervals.
Preferably, the time interval is 3 to 8s, and may be, for example, 3s, 3.5s, 4s, 4.5s, 5s, 5.5s, 6s, 6.5s, 7s, 7.5s or 8s, but is not limited to the values recited, and other values not recited within the range of values are equally applicable.
As a preferred technical scheme of the method, the method comprises the following steps:
(1) taking 10-20 parts of glass batch samples of the same batch at a feed opening of a mixer, wherein the sampling time interval of two adjacent glass batch samples is 3-8 s; grinding the glass batch respectively, and sieving by a 200-mesh sieve to obtain 10-20 parts of grinding material;
(2) respectively dissolving the grinding materials obtained in the step (1) by using 1-5mol/L hydrochloric acid, and filtering the dissolved solution to obtain filtrate; the solid-liquid ratio of the grinding materials to the hydrochloric acid is 1 (2-10), and the unit of the solid-liquid ratio is g/mL; the dissolving temperature is 80-90 ℃ and the time is 5-30 min;
(3) adjusting the mass percent of Mg ions in each part of filtrate to be 0.01-2%, measuring the MgO content in each part of filtrate by a titration analysis method, and calculating the uniformity by the obtained MgO content.
The recitation of numerical ranges herein includes not only the above-recited numerical values, but also any numerical values between non-recited numerical ranges, and is not intended to be exhaustive or to limit the invention to the precise numerical values encompassed within the range for brevity and clarity.
Compared with the prior art, the invention has the beneficial effects that:
the method provided by the invention can realize accurate measurement of the uniformity of the glass batch under the condition of sampling 10-20 parts, and the accuracy of uniformity test is improved by taking the MgO content as the uniformity test standard because the MgO content in the glass batch, particularly the cover plate glass batch, is low; the method is simple and convenient to operate, and rapid evaluation of the uniformity of the glass batch is realized.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments.
Example 1
The embodiment provides a method for evaluating the uniformity of a cover plate glass batch, which comprises the following components in percentage by mass: al (Al)2O312％，CaO 3％，MgO 5％，K2O3% and Na2O12% and the balance of SiO2(ii) a The method comprises the following steps:
(1) taking 15 parts of glass batch samples of the same batch at a feed opening of a mixer, wherein the sampling time interval of two adjacent glass batch samples is 5 s; grinding the glass batch respectively, and sieving with a 200-mesh sieve to obtain 15 parts of grinding materials;
(2) respectively dissolving the grinding materials obtained in the step (1) by using 3mol/L hydrochloric acid, and filtering the dissolved solution to obtain filtrate; the solid-liquid ratio of the grinding materials to the hydrochloric acid is 1:6, and the unit of the solid-liquid ratio is g/mL; the dissolving temperature is 85 ℃, and the time is 18 min;
(3) adjusting the mass percent of Mg ions in each part of filtrate to be 0.5%, measuring the MgO content in each part of filtrate by a titration analysis method, and calculating the uniformity by the obtained MgO content.
In 15 parts of the measured glass batch, the content of MgO is 4.98%, 4.99%, 4.97%, 4.98%, 5.01%, 5.02%, 4.98%, 4.99%, 5.02%, 4.99%, 4.98%, 5.00%, 5.02%, 4.99% and 4.99% in sequence by mass percent, and the uniformity of the obtained cover plate glass batch is calculated to be 99.98%.
Example 2
The embodiment provides a method for evaluating the uniformity of a cover plate glass batch, which comprises the following components in percentage by mass: al (Al)2O38％，CaO 4％，MgO 6％，K2O2% and Na2O11%, the balance being SiO2(ii) a The method comprises the following steps:
(1) taking 12 parts of glass batch samples of the same batch at a feed opening of a mixer, wherein the sampling time interval of two adjacent parts of glass batch samples is 6 s; grinding the glass batch respectively, and sieving with a 200-mesh sieve to obtain 12 parts of grinding material;
(2) respectively dissolving the grinding materials obtained in the step (1) by using 4mol/L hydrochloric acid, and filtering the dissolved solution to obtain filtrate; the solid-liquid ratio of the grinding materials to the hydrochloric acid is 1:4, and the unit of the solid-liquid ratio is g/mL; the dissolving temperature is 82 ℃ and the time is 12 min;
(3) adjusting the mass percent of Mg ions in each part of filtrate to be 0.1%, measuring the MgO content in each part of filtrate by a titration analysis method, and calculating the uniformity by the obtained MgO content.
In 12 parts of the measured glass batch, the content of MgO is 6.02%, 6.03%, 6.01%, 5.99%, 5.95%, 6.03%, 5.97%, 6.03%, 5.99% and 6.02% in sequence by mass percent, and the uniformity of the obtained cover plate glass batch is calculated to be 99.99%.
Example 3
The embodiment provides a method for evaluating the uniformity of a cover plate glass batch, which comprises the following components in percentage by mass: al (Al)2O318％，CaO 2％，MgO 8％，K2O4% and Na2O13% and the balance of SiO2(ii) a The method comprises the following steps:
(1) taking 18 parts of glass batch samples of the same batch at a feed opening of a mixer, wherein the sampling time interval of two adjacent parts of glass batch samples is 4 s; grinding the glass batch respectively, and sieving with a 200-mesh sieve to obtain 18 parts of grinding material;
(2) respectively dissolving the grinding materials obtained in the step (1) by using 2mol/L hydrochloric acid, and filtering the dissolved solution to obtain filtrate; the solid-liquid ratio of the grinding materials to the hydrochloric acid is 1:8, and the unit of the solid-liquid ratio is g/mL; the dissolving temperature is 88 ℃ and the time is 24 min;
(3) adjusting the mass percent of Mg ions in each part of filtrate to be 1%, measuring the MgO content in each part of filtrate by a titration analysis method, and calculating the uniformity by the obtained MgO content.
In 18 parts of the measured glass batch, the content of MgO is 8.06%, 8.09%, 8.05%, 7.99%, 8.07%, 7.92%, 7.93%, 7.90%, 8.10%, 8.01%, 7.97%, 8.04%, 8.01%, 7.99%, 8.08%, 8.05%, 7.95% and 8.06% in sequence by mass percent, and the uniformity of the obtained cover plate glass batch is calculated to be 99.57%.
Example 4
The embodiment provides a method for evaluating the uniformity of a cover plate glass batch, which comprises the following components in percentage by mass: al (Al)2O321％，MgO 3％，K2O1% and Na2O10%, and the balance SiO2(ii) a The method comprises the following steps:
(1) 20 parts of glass batch samples in the same batch are taken from a feed opening of a mixer, and the sampling time interval of two adjacent glass batch samples is 3 s; grinding the glass batch respectively, and sieving the ground glass batch with a 200-mesh sieve to obtain 20 parts of grinding material;
(2) respectively dissolving the grinding materials obtained in the step (1) by using 5mol/L hydrochloric acid, and filtering the dissolved solution to obtain filtrate; the solid-liquid ratio of the grinding materials to the hydrochloric acid is 1:2, and the unit of the solid-liquid ratio is g/mL; the dissolving temperature is 80 ℃, and the time is 30 min;
(3) adjusting the mass percent of Mg ions in each part of filtrate to be 0.01%, measuring the MgO content in each part of filtrate by a titration analysis method, and calculating the uniformity by the obtained MgO content.
In 20 parts of the measured glass batch, the content of MgO is 3.09%, 2.92%, 2.95%, 3.06%, 3.02%, 2.90%, 3.10%, 3.00%, 3.05%, 3.03%, 3.00%, 2.95%, 2.92%, 3.09%, 3.10%, 3.09%, 2.91%, 3.07% and 3.01% in sequence by mass percent, and the uniformity of the obtained cover plate glass batch is calculated to be 98.48%.
Example 5
The embodiment provides a method for evaluating the uniformity of a cover plate glass batch, which comprises the following components in percentage by mass: al (Al)2O34.5％，CaO 6％，MgO 10％，K2O5% and Na2O15% and the balance of SiO2(ii) a The method comprises the following steps:
(1) taking 10 parts of glass batch samples of the same batch at a feed opening of a mixer, wherein the sampling time interval of two adjacent glass batch samples is 8 s; grinding the glass batch respectively, and sieving by a 200-mesh sieve to obtain 10 parts of grinding materials;
(2) respectively dissolving the grinding materials obtained in the step (1) by using 1mol/L hydrochloric acid, and filtering the dissolved solution to obtain filtrate; the solid-liquid ratio of the grinding materials to the hydrochloric acid is 1:10, and the unit of the solid-liquid ratio is g/mL; the dissolving temperature is 90 ℃, and the time is 5 min;
(3) adjusting the mass percent of Mg ions in each part of filtrate to be 2%, measuring the MgO content in each part of filtrate by a titration analysis method, and calculating the uniformity by the obtained MgO content.
In 10 parts of the measured glass batch, the content of MgO is 10.05%, 9.96%, 10.03%, 9.97%, 9.98%, 10.04%, 9.98% and 9.97% in sequence by mass percent, and the uniformity of the obtained cover plate glass batch is calculated to be 99.53%.
In conclusion, the method provided by the invention can realize accurate measurement of the uniformity of the glass batch under the condition of sampling 10-20 parts, and the uniformity test accuracy is improved by taking the MgO content as the uniformity test standard because the MgO content in the glass batch, particularly the cover plate glass batch is lower; the method is simple and convenient to operate, and rapid evaluation of the uniformity of the glass batch is realized.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A method of evaluating the uniformity of a glass batch, comprising the steps of:
(1) taking 10-20 parts of a glass batch sample, and grinding each part of glass batch respectively to obtain 10-20 parts of grinding materials;
(2) respectively dissolving the grinding materials obtained in the step (1) by using hydrochloric acid, and filtering the dissolved solution to obtain filtrate;
(3) and (3) respectively measuring the MgO content in each filtrate obtained in the step (2), and calculating the uniformity according to the obtained MgO content.
2. The method of claim 1, wherein the glass batch material is a cover glass batch material.
3. The method according to claim 1 or 2, characterized in that the composition of the cover glass batch is, in mass percent: al (Al)2O34.5-21％，CaO 0-6％，MgO 3-10％，K2O1-5% and Na210-15% of O and the balance of SiO2。
4. The method according to any one of claims 1 to 3, wherein the grinding material in the step (1) is undersize obtained by sieving with a 200-mesh sieve after grinding.
5. The method according to any one of claims 1 to 4, wherein the concentration of the hydrochloric acid in the step (2) is 1 to 5 mol/L.
6. The method of claim 5, wherein the dissolving in step (2) is carried out at a temperature of 80-90 ℃ for a period of 5-30 min.
7. The method as claimed in claim 6, wherein the solid-to-liquid ratio of each part of the millbase and the hydrochloric acid in the step (2) is 1 (2-10), and the unit of the solid-to-liquid ratio is g/mL.
8. The method according to any one of claims 1 to 7, wherein the determination in step (3) is performed after the MgO content in each filtrate is adjusted to 0.01 to 2 mass% of Mg ions in each filtrate;
preferably, the determination method comprises atomic absorption spectrometry and/or titrimetry, preferably titrimetry.
9. The method according to any one of claims 1 to 8, wherein the step (1) of taking 10 to 20 parts of the glass batch sample comprises the following specific operations: taking 10-20 parts of glass batch samples of the same batch at a feed opening of a mixer at time intervals;
preferably, the time interval is 3-8 s.
10. A method according to any of claims 1-9, characterized in that the method comprises the steps of:
(1) taking 10-20 parts of glass batch samples of the same batch at a feed opening of a mixer, wherein the sampling time interval of two adjacent glass batch samples is 3-8 s; grinding the glass batch respectively, and sieving by a 200-mesh sieve to obtain 10-20 parts of grinding material;
(2) respectively dissolving the grinding materials obtained in the step (1) by using 1-5mol/L hydrochloric acid, and filtering the dissolved solution to obtain filtrate; the solid-liquid ratio of the grinding materials to the hydrochloric acid is 1 (2-10), and the unit of the solid-liquid ratio is g/mL; the dissolving temperature is 80-90 ℃ and the time is 5-30 min;
(3) adjusting the mass percent of Mg ions in each part of filtrate to be 0.01-2%, measuring the MgO content in each part of filtrate by a titration analysis method, and calculating the uniformity by the obtained MgO content.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113945598A (en) * | 2021-09-07 | 2022-01-18 | 河北光兴半导体技术有限公司 | Evaluation method of glass strengthening ion exchange efficiency |
| CN117368423A (en) * | 2023-12-07 | 2024-01-09 | 上海百奥恒新材料有限公司 | Quality inspection method for geopolymer and application thereof |
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