CN117949353A - Method for rapidly and conveniently judging average particle size of gold tailings - Google Patents
Method for rapidly and conveniently judging average particle size of gold tailings Download PDFInfo
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- CN117949353A CN117949353A CN202410119255.3A CN202410119255A CN117949353A CN 117949353 A CN117949353 A CN 117949353A CN 202410119255 A CN202410119255 A CN 202410119255A CN 117949353 A CN117949353 A CN 117949353A
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- gold tailings
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- 238000000034 method Methods 0.000 title claims abstract description 31
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 239000010931 gold Substances 0.000 title claims abstract description 25
- 229910052737 gold Inorganic materials 0.000 title claims abstract description 25
- 239000002245 particle Substances 0.000 title claims abstract description 23
- 239000000463 material Substances 0.000 claims abstract description 16
- 238000012360 testing method Methods 0.000 claims abstract description 15
- 238000012216 screening Methods 0.000 claims abstract description 11
- 238000005303 weighing Methods 0.000 claims abstract description 6
- 238000005070 sampling Methods 0.000 claims abstract description 4
- 238000012545 processing Methods 0.000 claims abstract description 3
- 238000005188 flotation Methods 0.000 claims description 4
- 239000011148 porous material Substances 0.000 claims description 4
- 239000004566 building material Substances 0.000 abstract description 5
- 238000010276 construction Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 239000010419 fine particle Substances 0.000 description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000011707 mineral Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000002910 solid waste Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000012797 qualification Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 208000010359 Newcastle Disease Diseases 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000386 microscopy Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000000790 scattering method Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- 239000011882 ultra-fine particle Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/02—Investigating particle size or size distribution
- G01N15/0255—Investigating particle size or size distribution with mechanical, e.g. inertial, classification, and investigation of sorted collections
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/02—Investigating particle size or size distribution
- G01N15/0272—Investigating particle size or size distribution with screening; with classification by filtering
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Dispersion Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a method for rapidly and conveniently judging the average particle size of gold tailings, and mainly relates to the field of building materials; the method comprises the following steps: s1, sampling undisturbed gold tailings to be tested, and performing a screening test; s2, selecting a container with a volume V; s3, respectively taking the screen residues with the volume of V from the screen residues on each screen, and weighing, wherein the mass of the screen residues is as follows: m 1、m2、m3……mN; s4, grinding the undisturbed gold tailings, and after finishing the processing, taking and weighing a ground material with the volume of V, wherein the mass of the ground material with the volume of V is M; s5, comparing M with the mass of the screen residue with the volume V on each screen, and if M is smaller than the mass of the screen residue with the volume V on a certain screen, indicating that the average grain diameter of the ground material is smaller than the mesh size of the screen of the number; the invention is simple and easy to operate, can save test cost, and save time for identifying reports such as sample feeding.
Description
Technical Field
The invention relates to the field of building materials, in particular to a method for rapidly and conveniently judging the average particle size of gold tailings.
Background
Because the metal grade of the nonferrous mine raw ore is lower, the yield of the tailings is higher, the accumulation amount of the tailings is continuously increased, the main components of the tailings are nonmetallic minerals rich in resources such as SiO2, al2O3, caCO3 and the like, and one or a plurality of building materials can be produced by the existing mature process for fully utilizing the tailings resources. Current utilization of tailings is mainly focused on the development of tailings for active binders, and the enhancement of pozzolanic activity of tailings requires two conditions: firstly, calcining at a high temperature; secondly, the granularity is fine enough, and because high-temperature exercise needs to consume a large amount of energy sources, the current large trend of energy conservation and carbon reduction is not met, so that tailings are ground to a certain degree by means of a grinding process, the granularity effect activity of the tailings is improved, and the method is an important way for developing the current tailings cementing materials.
The tailing grinding process is used in production workshops and laboratories, and the particle size of ultrafine particles needs to be measured regularly. The powder particle size detection method is many, and common methods include sieving method, microscopy method, sedimentation method, photoresistance method, resistance method, ventilation method, X-ray small angle scattering method, etc. The above methods all need corresponding instruments and equipment, construction enterprises rarely have the equipment and corresponding detection qualification, and the construction process or the test process inevitably needs to follow the granularity components of the fine particles in real time, and the process of sending detection reports to laboratories with corresponding qualification through sample delivery obviously delays the progress speed of engineering.
In the related enterprises for developing or producing building materials by utilizing solid wastes, when gold tailings and the like, tailings such as fly ash, building wastes and the like are required to be ground, a sample of the ground materials is often required to be sent to a related detection mechanism for detecting granularity components, and a laser granularity analyzer is generally adopted at present for analyzing the granularity components of industrial solid waste fine particles used on building materials. However, the production or construction enterprises do not have such instruments, and the particle size results are required to be obtained frequently in time in the production or construction process, so that great inconvenience is brought to the production or construction.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a method for rapidly and conveniently judging the average particle size of gold tailings, which is simple and easy to operate, can save test cost, and can save the time of identification reports such as sample feeding and the like.
The invention aims to achieve the aim, and the aim is achieved by the following technical scheme:
a method for rapidly and conveniently judging average particle size of gold tailings comprises the following steps:
s1, sampling undisturbed gold tailings to be tested, and performing screening test to obtain N screen residues on the screen, wherein the pore diameters of selected screen holes are respectively from large to small: d 1、d2、d3……dN, wherein N is a natural number;
s2, selecting a container with a volume V;
S3, respectively taking the screen residues with the volume of V from the screen residues on each screen, and weighing, wherein the mass of the screen residues is as follows: m 1、m2、m3……mN, wherein m N is the mass of the on-screen residue with a mesh aperture of d N;
S4, grinding the undisturbed gold tailings, and after finishing the processing, taking and weighing a ground material with the volume of V, wherein the mass of the ground material with the volume of V is M;
s5, comparing M with the mass of the screen residue with the volume V on each screen, and if M is smaller than the mass of the screen residue with the volume V on a certain screen, indicating that the average grain diameter of the ground material is smaller than the mesh size of the screen.
Preferably, in step S1, for flotation of tailings with full particle size, the pore diameters of the sieves are selected from large to small according to the particle sizes: 4.75mm, 2.36mm, 1.18mm, 0.63mm, 0.315mm, 0.16mm, 0.075mm, 0.045mm, screen bottom.
Preferably, in step S5, the mass of the ground material is compared with the mass of the screen residue having a volume V on each screen, and an average particle diameter determination table of the ground material is obtained:
preferably, for gold tailings, only one screening test is needed before grinding, the mass m of the V-shaped screen residues on each screen is obtained, and the V-shaped screen residues are recorded in sequence to be used as a scale for subsequent judgment.
Compared with the prior art, the invention has the beneficial effects that:
The invention breaks through the traditional testing mode of the granularity components of the fine particles, proposes a single screening, and a simple, convenient and efficient testing mode for permanent use, and has high efficiency, low cost and good quality; only one screening test is needed, and the screen residues with the volume of V on each screen are taken, and the mass m N of each screen is respectively weighed and used as a comparison scale for standby. The gold tailings are ground into fine mineral aggregate samples with V volumes at any time, the mass M is simply weighed and compared with M N of each sieve in a standby scale, when M is smaller than M N, the average particle size of the fine mineral aggregate is smaller than the sieve pore size d N, after a one-time screening experiment is carried out, the mass of fine particles with the quantitative volume V is simply weighed, the judgment of the particle size of the mineral aggregate can be realized, the method is simple and easy to operate, the test cost can be saved, and the time for identifying and reporting such as sample feeding is saved.
Detailed Description
The application will be further illustrated with reference to specific examples. It is to be understood that these examples are illustrative of the present application and are not intended to limit the scope of the present application. Further, it will be understood that various changes and modifications may be made by those skilled in the art after reading the teachings of the application, and equivalents thereof fall within the scope of the application as defined by the claims.
Example 1: the invention discloses a method for rapidly and conveniently judging the average particle size of gold tailings, which comprises the following steps:
S1, firstly, sampling undisturbed gold tailings to be tested, and performing screening test.
Taking common flotation full-grain tailings as an example, according to the grain size, selecting the grain sizes of sieves from large to small (according to the aggregate sieve specification for asphalt mixture pavement): 4.75mm, 2.36mm, 1.18mm, 0.63mm, 0.315mm, 0.16mm, 0.075mm, 0.045mm, screen bottom.
S2, taking a fixed-volume container V.
S3, respectively taking the screen residue mass of the volume V in the screen residue on each screen, wherein the screen residue mass is respectively recorded as ：m4.75、m2.36、m1.18、m0.63、m0.315、m0.16、m0.075、m0.045、m Bottom , and can also be recorded as m 1、m2、m3、m4、m5、m6、m7、m8、m9: the following table shows:
s4, grinding the undisturbed gold tailings for a certain time, and taking the mass of the ground materials with the volume V by using a fixed-volume container V, and recording the mass as M.
S5, comparing the mass of the screen residues with the volume V on each screen, and if M is smaller than the mass of the screen residues with the volume V on a certain screen, proving that the average grain diameter in the ground material is smaller than the mesh size of the screen.
For the industrial solid waste, only one screening test is needed before grinding, the mass m of the V-shaped screen residue on each screen is obtained, and the V-shaped screen residue is recorded in sequence to be used as a scale for subsequent judgment.
Example 2: the invention discloses a method for rapidly and conveniently judging the average particle size of gold tailings.
The principle of the method is described as follows:
1) The flotation tailings of the gold tailings in the Newcastle disease are taken for screening, 3 screens are taken for simulation test, and the apertures are 0.16,0.075,0.045 respectively and the bottoms of the screens are the bottoms of the screens.
2) The screen residues on each screen are placed in a tray respectively.
3) The mass of each screen residue is respectively taken by a container with the volume V and is respectively recorded as m 0.16、m0.075、m0.045、m Bottom .
4) Optionally taking the mass M of the screen residue with the volume V from the screen bottom, wherein M is always smaller than M 0.045; similarly, the mass M ( Bottom +0.045mm),M( Bottom +0.045mm) of the mixed screen residue with the containing volume V randomly combined from the screen bottom and the screen residue with the size of 0.045mm is always smaller than M 0.075; the mass M ( Bottom +0.045mm+0.075mm),M( Bottom +0.045mm+0.075mm) of the mixed screen residue of the optional combined holding volume V from the screen bottom, the 0.045mm and the 0.075mm screen is always smaller than M 0.045.
Claims (4)
1. The method for rapidly and conveniently judging the average particle size of the gold tailings is characterized by comprising the following steps:
s1, sampling undisturbed gold tailings to be tested, and performing screening test to obtain N screen residues on the screen, wherein the pore diameters of selected screen holes are respectively from large to small: d 1、d2、d3……dN, wherein N is a natural number;
s2, selecting a container with a volume V;
S3, respectively taking the screen residues with the volume of V from the screen residues on each screen, and weighing, wherein the mass of the screen residues is as follows: m 1、m2、m3……mN, wherein m N is the mass of the on-screen residue with a mesh aperture of d N;
S4, grinding the undisturbed gold tailings, and after finishing the processing, taking and weighing a ground material with the volume of V, wherein the mass of the ground material with the volume of V is M;
s5, comparing M with the mass of the screen residue with the volume V on each screen, and if M is smaller than the mass of the screen residue with the volume V on a certain screen, indicating that the average grain diameter of the ground material is smaller than the mesh size of the screen.
2. The method for quickly and conveniently judging the average particle size of gold tailings according to claim 1, wherein in the step S1, for flotation of the tailings with full particle size, according to the particle size, the mesh sizes of the selected sieves are respectively from large to small: 4.75mm, 2.36mm, 1.18mm, 0.63mm, 0.315mm, 0.16mm, 0.075mm, 0.045mm, screen bottom.
3. The method for quickly and conveniently judging the average particle size of gold tailings according to claim 1, wherein in the step S5, after comparing the mass of M with the mass of the screen residue with the volume V on each screen, an average particle size judgment table of ground materials is obtained.
4. The method for rapidly and conveniently judging the average particle size of gold tailings according to claim 1, wherein for the gold tailings, only one screening test is needed before grinding, the mass m of the V-shaped screen residues on each screen is obtained, and the V-shaped screen residues on each screen are recorded in sequence to be used as a scale for subsequent judgment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410119255.3A CN117949353A (en) | 2024-01-29 | 2024-01-29 | Method for rapidly and conveniently judging average particle size of gold tailings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410119255.3A CN117949353A (en) | 2024-01-29 | 2024-01-29 | Method for rapidly and conveniently judging average particle size of gold tailings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117949353A true CN117949353A (en) | 2024-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202410119255.3A Pending CN117949353A (en) | 2024-01-29 | 2024-01-29 | Method for rapidly and conveniently judging average particle size of gold tailings |
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| Country | Link |
|---|---|
| CN (1) | CN117949353A (en) |
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2024
- 2024-01-29 CN CN202410119255.3A patent/CN117949353A/en active Pending
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