CN117110198B - Method for rapidly detecting type and content of flocculant in machine-made sand - Google Patents
Method for rapidly detecting type and content of flocculant in machine-made sand Download PDFInfo
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- CN117110198B CN117110198B CN202311088229.0A CN202311088229A CN117110198B CN 117110198 B CN117110198 B CN 117110198B CN 202311088229 A CN202311088229 A CN 202311088229A CN 117110198 B CN117110198 B CN 117110198B
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- 239000004576 sand Substances 0.000 title claims abstract description 78
- 238000000034 method Methods 0.000 title claims abstract description 35
- 239000008394 flocculating agent Substances 0.000 claims abstract description 29
- 238000001514 detection method Methods 0.000 claims abstract description 17
- 239000006228 supernatant Substances 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000002156 mixing Methods 0.000 claims abstract description 9
- 238000003756 stirring Methods 0.000 claims abstract description 8
- 235000018102 proteins Nutrition 0.000 claims description 13
- 102000004169 proteins and genes Human genes 0.000 claims description 13
- 108090000623 proteins and genes Proteins 0.000 claims description 13
- 230000000149 penetrating effect Effects 0.000 claims description 8
- 125000000129 anionic group Chemical group 0.000 claims description 7
- 125000002091 cationic group Chemical group 0.000 claims description 7
- 229920002401 polyacrylamide Polymers 0.000 claims description 6
- 102000008186 Collagen Human genes 0.000 claims description 5
- 108010035532 Collagen Proteins 0.000 claims description 5
- 102000016943 Muramidase Human genes 0.000 claims description 5
- 108010014251 Muramidase Proteins 0.000 claims description 5
- 108010062010 N-Acetylmuramoyl-L-alanine Amidase Proteins 0.000 claims description 5
- 229920001436 collagen Polymers 0.000 claims description 5
- 229960000274 lysozyme Drugs 0.000 claims description 5
- 235000010335 lysozyme Nutrition 0.000 claims description 5
- 239000004325 lysozyme Substances 0.000 claims description 5
- 102000011632 Caseins Human genes 0.000 claims description 4
- 108010076119 Caseins Proteins 0.000 claims description 4
- 239000005018 casein Substances 0.000 claims description 4
- BECPQYXYKAMYBN-UHFFFAOYSA-N casein, tech. Chemical compound NCCCCC(C(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(CC(C)C)N=C(O)C(CCC(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(C(C)O)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(COP(O)(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(N)CC1=CC=CC=C1 BECPQYXYKAMYBN-UHFFFAOYSA-N 0.000 claims description 4
- 235000021240 caseins Nutrition 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 230000001678 irradiating effect Effects 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 230000006920 protein precipitation Effects 0.000 claims description 2
- 239000013049 sediment Substances 0.000 claims 3
- 230000000284 resting effect Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 5
- 238000001556 precipitation Methods 0.000 description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- 238000012360 testing method Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 239000000654 additive Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000003760 magnetic stirring Methods 0.000 description 3
- 238000004062 sedimentation Methods 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 125000003368 amide group Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005185 salting out Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Molecular Biology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a method for rapidly detecting the type and content of a flocculating agent in machine-made sand, and belongs to the technical field of machine-made sand detection. The method for rapidly detecting the type and the content of the flocculant in the machine-made sand comprises the following steps: mixing machine-made sand with water, stirring, standing, and observing whether the supernatant is clear; if the machine-made sand is clear, the machine-made sand contains a flocculating agent, and if the machine-made sand is not clear, the machine-made sand does not contain the flocculating agent; after the flocculant is detected by the method, the species detection and the content detection are performed. The invention can rapidly and conveniently detect whether the machine-made sand contains the flocculating agent, can complete all detection processes only on a construction site, and can distinguish the types and the contents of the flocculating agent, thereby judging whether the detected machine-made sand is suitable for preparing concrete in advance.
Description
Technical Field
The invention relates to the technical field of machine-made sand detection, in particular to a method for rapidly detecting the type and content of a flocculating agent in machine-made sand.
Background
At present, with the rapid development of the construction industry, the demand for concrete is also increasing. The sand is the main component in the concrete, but the quality of the natural sand in partial areas can not meet the actual production requirement due to the difference of regional distribution, and the physical quality of the concrete can be seriously influenced by the use of the sand. Therefore, the adoption of machine-made sand with higher quality has become a research direction in the selection of concrete sand raw materials.
The machine-made sand is sand processed by a sand making machine and other accessory equipment and additives. Among the various additives, polyacrylamide is often used as a flocculant because of its good heat stability, easy dissolution in cold water, long molecular chain, easy bridging between two particles, and ability to accelerate particle sedimentation. And the polyacrylamide flocculant has the advantages that the structure contains a large amount of amide groups, so that hydrogen bonds are easy to form, better stable flocculation effect is realized, the sedimentation of suspended matters in sewage can be accelerated, the sewage after sand washing can be rapidly and effectively subjected to sedimentation treatment, sand washing water is recycled, sewage discharge is avoided, and the requirement of environmental protection is met. The series of polyacrylamide products can be classified into Nonionic (NPAM), cationic (APAM) and anionic (CPAM), and these polymers may be homopolymers or copolymers, and the relative molecular mass is one of the indicators for distinguishing the main properties.
However, if the content of the flocculant in the finished sand is too high, the viscosity of the concrete mixture is increased, so that the fluidity of the mixture is deteriorated, the working performance of the concrete mixture is seriously affected, and the quality of concrete entities is seriously affected. In the process of industrially producing concrete, raw material sand is widely supplied by a plurality of different suppliers due to large demand, and it is difficult to find out which machine sand has excessive flocculant and which sand does not contain.
At present, the detection of flocculant in machine-made sand cannot be performed rapidly, qualitatively and quantitatively, and most of the flocculant is used for qualitatively analyzing whether the flocculant contained in the machine-made sand is excessive or not through the working performance of concrete mixture after concrete mixing; however, the detection result of the method is inaccurate, and the content of the flocculant cannot be judged due to more interference factors. Therefore, in order to rapidly determine the type and content range of the flocculant at the construction site, development of a rapid detection method is needed.
Disclosure of Invention
The invention aims to provide a method for rapidly detecting the types and the contents of flocculating agents in machine-made sand, so as to achieve the purpose of rapidly determining the types and the contents of the flocculating agents on a construction site.
In order to achieve the above purpose, the present invention provides the following technical solutions:
one of the technical schemes of the invention is as follows: the method for rapidly detecting whether flocculant is contained in machine-made sand comprises the following steps:
mixing machine-made sand with water, stirring, standing, and observing whether the supernatant is clear; if the machine-made sand is clear, the machine-made sand contains a flocculating agent, and if the machine-made sand is not clear, the machine-made sand does not contain the flocculating agent;
the flocculant is polyacrylamide flocculant.
Preferably, the mass ratio of the machine-made sand to the water is 1:5, and the stirring time is 2-15min.
Preferably, the time of the standing is 5-60min.
The second technical scheme of the invention is as follows: providing a method for rapidly detecting the type of flocculant in machine-made sand, detecting the type of flocculant by the method, and then detecting the type of flocculant; the species detection comprises the steps of:
mixing the supernatant with protein, regulating pH, and determining the type of flocculant according to isoelectric precipitation of protein; specifically, if the pH value is higher than the isoelectric point of protein during precipitation, the flocculant in the machine-made sand is a cationic flocculant, if the pH value is lower than the isoelectric point of protein during precipitation, the flocculant in the machine-made sand is an anionic flocculant, and if no precipitation is generated, the flocculant in the machine-made sand is a nonionic flocculant.
After the pH is regulated, the phenomena of agglomeration, enlargement, precipitation and the like occur due to the mutual attraction of different charges between the flocculant and the protein in the supernatant, so that the solubility of the protein is reduced, salting out occurs, and the protein is coagulated and separated out from the solution.
Preferably, the mass-volume ratio of the protein to the supernatant is 1-5 g/30 mL.
Preferably, the protein is casein, lysozyme or collagen.
The nature of the flocculant type in the machine-made sand is particularly important in practical production and application. Because the different types of polyacrylamide flocculants have different influences on the performance of additives in concrete, the preparation method of the concrete needs to be adaptively adjusted; in concrete, the maximum concentration that can be tolerated for different types of flocculants also varies. Therefore, when selecting raw materials for preparing concrete, the type and the content of the flocculant can greatly influence whether the corresponding machine-made sand can be added conventionally.
The third technical scheme of the invention: the method for rapidly detecting the flocculant content in the machine-made sand is provided, and the content detection is carried out after the flocculant content is detected by the method; the content detection comprises the following steps:
placing the obtained clear supernatant in a transparent container, arranging a laser light source at one side of the transparent container, irradiating liquid in the transparent container with laser beams emitted by the laser light source, and determining the flocculant content range based on the propagation distance of the laser beams; wherein, the propagation distance of the laser beam includes: the propagation distance of the laser beam before entering the transparent container, the propagation distance of the laser beam in the transparent container, and the propagation distance of the laser beam after penetrating the transparent container.
Preferably, the transparent container is a 250mL beaker, the laser beam is perpendicular to the side wall of the beaker, the distance between the laser source and the beaker is 20cm, the laser is emitted by a laser pen with the laser grade of two, the power of less than or equal to 5mW and the wavelength of 530-570nm, and determining the flocculant content range based on the propagation distance of the laser beam comprises:
when the propagation distance of the laser beam in the transparent container is 0, the mass concentration of the flocculating agent is more than 1%;
when the propagation distance of the laser beam in the transparent container is not 0 and the continuous propagation distance of the laser beam after penetrating through the transparent container is 0, the mass concentration of the flocculant is more than 0.1 percent and less than or equal to 1 percent;
the distance of continuous propagation of the laser beam after penetrating through the transparent container is less than 20cm, and the mass concentration of the flocculant is less than or equal to 0.01 percent and less than or equal to 0.1 percent;
when the distance of continuous propagation of the laser beam after penetrating through the transparent container is more than 20cm, the mass concentration of the flocculating agent is less than or equal to 0.01%.
The mass concentration of the flocculant is the expected mass concentration of the flocculant in the machine-made sand, and only depends on the amount of the flocculant added in the sand washing process, and is irrelevant to the crushing degree of the machine-made sand and the like.
The beneficial technical effects of the invention are as follows:
the invention can rapidly and conveniently detect whether the machine-made sand contains the flocculating agent, can complete all detection processes only on a construction site, and can distinguish the types and the contents of the flocculating agent, thereby judging whether the detected machine-made sand is suitable for preparing concrete in advance.
Drawings
FIG. 1 is a schematic process diagram of step (2) in example 1.
Detailed Description
Various exemplary embodiments of the invention will now be described in detail, which should not be considered as limiting the invention, but rather as more detailed descriptions of certain aspects, features and embodiments of the invention. It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
In addition, for numerical ranges in this disclosure, it is understood that each intermediate value between the upper and lower limits of the ranges is also specifically disclosed. Every smaller range between any stated value or stated range, and any other stated value or intermediate value within the stated range, is also encompassed within the invention. The upper and lower limits of these smaller ranges may independently be included or excluded in the range.
Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Although only preferred methods and materials are described herein, any methods and materials similar or equivalent to those described herein can be used in the practice or testing of the present invention.
The terms "comprising," "including," "having," "containing," and the like as used herein are open-ended terms, meaning including, but not limited to.
The isoelectric point pi=4.8 of casein (Caesin) used in the following examples and comparative examples of the present invention, the isoelectric point p=11.0 of Lysozyme (Lysozyme), and the isoelectric point pi=6.6 of Collagen (Collagen).
The laser used in each of the following examples and comparative examples of the present invention was emitted from a laser pen having a laser level of two, a power of 5mW or less and a wavelength of 530 to 570 nm.
The raw materials used in the following examples and comparative examples of the present invention are all commercially available products.
Example 1
(1) Mixing 40g of machine-made sand and 200g of water in a 250mL beaker, stirring for 10min, standing for 20min, and observing whether the supernatant is clear; if the machine-made sand is clear, the machine-made sand contains a flocculating agent, and if the machine-made sand is not clear, the machine-made sand does not contain the flocculating agent.
(2) After the flocculant is detected by the method, the content detection is carried out, specifically: placing a laser pen at a position 20cm away from the wall of the 250mL beaker, wherein laser emitted by the laser pen coincides with the center of the cross section of the 250mL beaker, and a scale parallel to the laser direction is arranged to judge the content range of the flocculant through the distance of laser emission; if the laser is not injected into the beaker, the flocculant is high in mass concentration (> 1%), if the laser is injected into but does not penetrate the beaker, the flocculant is high in mass concentration (0.1% < 1% of the flocculant), if the laser penetrates the beaker but does not exceed 20cm, the flocculant is low in mass concentration (0.01% < 0.1% of the flocculant), and if the laser penetrates the beaker and exceeds 20cm, the flocculant is low in mass concentration (< 0.01%). A schematic process diagram of the test method is shown in FIG. 1.
(3) After detecting the flocculant by the method, detecting the type of the flocculant, specifically: 30mL of the supernatant was mixed with 1g of casein in a 100mL beaker with magnetic stirring, the pH was adjusted with 0.1M HCl and 0.1M NaOH, when precipitation occurred, if the pH was above 4.8, this indicated that the flocculant was a cationic flocculant, if the pH was below 4.8, this indicated that the flocculant was an anionic flocculant, and if no precipitation occurred, this indicated that the flocculant was a nonionic flocculant.
Example 2
(1) Mixing 40g of machine-made sand and 200g of water in a 250mL beaker, stirring for 5min, standing for 30min, and observing whether the supernatant is clear; if the machine-made sand is clear, the machine-made sand contains a flocculating agent, and if the machine-made sand is not clear, the machine-made sand does not contain the flocculating agent.
(2) After the flocculant is detected by the method, the content detection is carried out, specifically: placing a laser pen at a position 20cm away from the wall of the 250mL beaker, wherein laser emitted by the laser pen coincides with the center of the cross section of the 250mL beaker, and a scale parallel to the laser direction is arranged to judge the content range of the flocculant through the distance of laser emission; if the laser is not injected into the beaker, the flocculant is high in mass concentration (> 1%), if the laser is injected into but does not penetrate the beaker, the flocculant is high in mass concentration (0.1% < 1% of the flocculant), if the laser penetrates the beaker but does not exceed 20cm, the flocculant is low in mass concentration (0.01% < 0.1% of the flocculant), and if the laser penetrates the beaker and exceeds 20cm, the flocculant is low in mass concentration (< 0.01%).
(3) After detecting the flocculant by the method, detecting the type of the flocculant, specifically: 30mL of the supernatant was mixed with 3g of lysozyme in a 100mL beaker with magnetic stirring, the pH was adjusted with 0.1M HCl and 0.1M NaOH, when precipitation occurred, if the pH was above 11.0, this indicated that the flocculant was a cationic flocculant, if the pH was below 11.0, this indicated that the flocculant was an anionic flocculant, and if no precipitation occurred, this indicated that the flocculant was a nonionic flocculant.
Example 3
(1) Mixing 40g of machine-made sand and 200g of water in a 250mL beaker, stirring for 5min, standing for 1h, and observing whether the supernatant is clear; if the machine-made sand is clear, the machine-made sand contains a flocculating agent, and if the machine-made sand is not clear, the machine-made sand does not contain the flocculating agent.
(2) After the flocculant is detected by the method, the content detection is carried out, specifically: placing a laser pen at a position 20cm away from the wall of the 250mL beaker, wherein laser emitted by the laser pen coincides with the center of the cross section of the 250mL beaker, and a scale parallel to the laser direction is arranged to judge the content range of the flocculant through the distance of laser emission; if the laser is not injected into the beaker, the flocculant is high in mass concentration (> 1%), if the laser is injected into but does not penetrate the beaker, the flocculant is high in mass concentration (0.1% < 1% of the flocculant), if the laser penetrates the beaker but does not exceed 20cm, the flocculant is low in mass concentration (0.01% < 0.1% of the flocculant), and if the laser penetrates the beaker and exceeds 20cm, the flocculant is low in mass concentration (< 0.01%).
(3) After detecting the flocculant by the method, detecting the type of the flocculant, specifically: 30mL of the supernatant was mixed with 5g of collagen in a 100mL beaker with magnetic stirring, the pH was adjusted with 0.1M HCl and 0.1M NaOH, when precipitation occurred, if the pH was above 6.6, this indicated that the flocculant was a cationic flocculant, if the pH was below 6.6, this indicated that the flocculant was an anionic flocculant, and if no precipitation occurred, this indicated that the flocculant was a nonionic flocculant.
Effect verification
(1) The content test was performed by the method described in steps (1) to (2) in example 1, taking machine-made sand with flocculant mass percentages of 0, 0.008%, 0.05%, 0.5% and 2%, respectively. The test results are shown in Table 1.
Table 1 content test
As can be seen from Table 1, the test method of the present invention can rapidly determine whether the machine-made sand contains a flocculating agent or not at a construction site, and determine the concentration range of the flocculating agent.
(2) Machine-made sand containing 0.2% by mass of anionic, cationic and nonionic flocculants was prepared separately and tested for content by the method described in step (3) of examples 1-3. The results are shown in Table 2.
Table 2 category test
As can be seen from Table 2, the test method of the present invention can rapidly determine the type of flocculant at the construction site.
The above embodiments are only illustrative of the preferred embodiments of the present invention and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art to the technical solutions of the present invention should fall within the protection scope defined by the claims of the present invention without departing from the design spirit of the present invention.
Claims (5)
1. A method for rapidly detecting whether flocculant is contained in machine-made sand, which is characterized by comprising the following steps:
mixing machine-made sand with water, stirring, standing, and observing whether the supernatant is clear; if the machine-made sand is clear, the machine-made sand contains a flocculating agent, and if the machine-made sand is not clear, the machine-made sand does not contain the flocculating agent;
the flocculant is polyacrylamide flocculant;
detecting the flocculant by the method, and then detecting the type of the flocculant; the species detection comprises the steps of:
mixing the supernatant with protein, regulating pH, and determining the type of flocculant according to isoelectric precipitation of protein; specifically, if the pH value of the produced sediment is higher than the isoelectric point of protein, the flocculant in the machine-made sand is a cationic flocculant, if the pH value of the produced sediment is lower than the isoelectric point of protein, the flocculant in the machine-made sand is an anionic flocculant, and if the produced sediment is not produced, the flocculant in the machine-made sand is a nonionic flocculant;
detecting the flocculant by the method, and then detecting the content; the content detection comprises the following steps:
placing the obtained clear supernatant in a transparent container, arranging a laser light source at one side of the transparent container, irradiating liquid in the transparent container with laser beams emitted by the laser light source, and determining the flocculant content range based on the propagation distance of the laser beams; wherein, the propagation distance of the laser beam includes: the propagation distance of the laser beam before entering the transparent container, the propagation distance of the laser beam in the transparent container and the continuous propagation distance of the laser beam after penetrating the transparent container;
the transparent container is a 250mL beaker, the laser beam is perpendicular to the side wall of the beaker, the distance between the laser source and the beaker is 20cm, the laser is emitted by a laser pen with the laser grade II and the power of less than or equal to 5mW and the wavelength of 530-570nm, and determining the flocculant content range based on the propagation distance of the laser beam comprises:
when the propagation distance of the laser beam in the transparent container is 0, the mass concentration of the flocculating agent is more than 1%;
when the propagation distance of the laser beam in the transparent container is not 0 and the continuous propagation distance of the laser beam after penetrating through the transparent container is 0, the mass concentration of the flocculant is more than 0.1 percent and less than or equal to 1 percent;
the distance of continuous propagation of the laser beam after penetrating through the transparent container is less than 20cm, and the mass concentration of the flocculant is less than or equal to 0.01 percent and less than or equal to 0.1 percent;
when the distance of continuous propagation of the laser beam after penetrating through the transparent container is more than 20cm, the mass concentration of the flocculating agent is less than or equal to 0.01%.
2. The method of claim 1, wherein the mass ratio of machine-made sand to water is 1:5, and the stirring time is 2-15min.
3. The method of claim 1, wherein the time of resting is 5-60 minutes.
4. The method of claim 1, wherein the mass to volume ratio of protein to supernatant is 1-5 g/30 ml.
5. The method of claim 1, wherein the protein is casein, lysozyme or collagen.
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| CN202311088229.0A CN117110198B (en) | 2023-08-28 | 2023-08-28 | Method for rapidly detecting type and content of flocculant in machine-made sand |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101974866A (en) * | 2010-09-14 | 2011-02-16 | 四川大学 | Method for preparing flocculant for treating papermaking black liquor by using waste collagen |
| CN103293165A (en) * | 2012-02-27 | 2013-09-11 | 刘云龙 | Solid granular foreign matter detection device and method for automatic light examining machine |
| CN107540845A (en) * | 2017-05-31 | 2018-01-05 | 陕西科技大学 | A kind of preparation method of industrial gelatine graft copolymerization cationic flocculant |
| CN110482786A (en) * | 2019-08-12 | 2019-11-22 | 广东长海建设工程有限公司 | The method of municipal sewage treatment |
| CN111039369A (en) * | 2018-10-12 | 2020-04-21 | 上海淼清水处理有限公司 | Papermaking wastewater treatment flocculant |
| CN113720804A (en) * | 2021-07-29 | 2021-11-30 | 成都宏基建材股份有限公司 | Method for rapidly detecting residual quantity of flocculating agent in sand for concrete |
| CN114804405A (en) * | 2022-03-30 | 2022-07-29 | 华新水泥股份有限公司 | Method for controlling residual amount of flocculating agent in washing machine-made sand |
| CN115159811A (en) * | 2022-06-23 | 2022-10-11 | 肇庆市建筑工程有限公司 | Zero-emission underground engineering slurry treatment construction method |
| CN115979976A (en) * | 2022-12-19 | 2023-04-18 | 江苏亚琛材料科技有限公司 | Method for detecting flocculating agent in washing machine-made sand |
-
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- 2023-08-28 CN CN202311088229.0A patent/CN117110198B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101974866A (en) * | 2010-09-14 | 2011-02-16 | 四川大学 | Method for preparing flocculant for treating papermaking black liquor by using waste collagen |
| CN103293165A (en) * | 2012-02-27 | 2013-09-11 | 刘云龙 | Solid granular foreign matter detection device and method for automatic light examining machine |
| CN107540845A (en) * | 2017-05-31 | 2018-01-05 | 陕西科技大学 | A kind of preparation method of industrial gelatine graft copolymerization cationic flocculant |
| CN111039369A (en) * | 2018-10-12 | 2020-04-21 | 上海淼清水处理有限公司 | Papermaking wastewater treatment flocculant |
| CN110482786A (en) * | 2019-08-12 | 2019-11-22 | 广东长海建设工程有限公司 | The method of municipal sewage treatment |
| CN113720804A (en) * | 2021-07-29 | 2021-11-30 | 成都宏基建材股份有限公司 | Method for rapidly detecting residual quantity of flocculating agent in sand for concrete |
| CN114804405A (en) * | 2022-03-30 | 2022-07-29 | 华新水泥股份有限公司 | Method for controlling residual amount of flocculating agent in washing machine-made sand |
| CN115159811A (en) * | 2022-06-23 | 2022-10-11 | 肇庆市建筑工程有限公司 | Zero-emission underground engineering slurry treatment construction method |
| CN115979976A (en) * | 2022-12-19 | 2023-04-18 | 江苏亚琛材料科技有限公司 | Method for detecting flocculating agent in washing machine-made sand |
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