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CN-121994568-A - Rapid mud sample polished section and preparation method thereof

CN121994568ACN 121994568 ACN121994568 ACN 121994568ACN-121994568-A

Abstract

The application provides a rapid mud sample polished section and a preparation method thereof, and relates to the field of lithofacies sample preparation. The method comprises the steps of dividing an acquired mud sample to obtain an analysis sample, determining a sampling amount according to the fineness of the sample, mixing epoxy resin, a diluent and a curing agent to prepare mixed liquid, pouring part of the mixed liquid into the bottom of a mold, adding the analysis sample, stirring and adding the rest of the mixed liquid until no obvious bubbles exist, heating at a first temperature, preserving heat, stirring to obtain a first sample, heating and curing the first sample at a second temperature to obtain a second sample, immediately cooling after the heating and curing are completed to obtain a sample block, and carrying out aftertreatment on the completely solidified sample block to obtain the light sheet. The preparation method can provide high-quality sliming sample polished sections for mining enterprises, help the enterprises to know ore properties more accurately, optimize ore dressing flow and improve resource utilization rate.

Inventors

  • ZHANG YULONG
  • XIAO YIWU
  • FANG MINGSHAN
  • FENG KAI

Assignees

  • 矿冶科技集团有限公司

Dates

Publication Date
20260508
Application Date
20260227

Claims (10)

  1. 1. A rapid preparation method of a mud sample polished section is characterized by comprising the following steps: dividing the collected mud sample to obtain an analysis sample, and determining the sampling amount according to the fineness of the sample; Mixing epoxy resin, a diluent and a curing agent to prepare a mixed liquid; filling part of the mixed liquid into the bottom of a mould, adding the analysis sample, stirring and adding the rest mixed liquid until no obvious bubbles exist; Heating and solidifying the first sample at a second temperature to obtain a second sample, and immediately cooling after the heating and solidification are completed to obtain a sample block; And (5) carrying out post-treatment on the completely solidified sample block to obtain the light sheet.
  2. 2. The method for preparing a rapid argillization sample light sheet according to claim 1, wherein the shrinkage is performed by a cone tetrad method, wherein the gram number of the sample is determined according to the mass ratio of-200 mesh mineral particles in the sample, and the higher the mass ratio of-200 mesh mineral particles in the sample is, the smaller the gram number of the sample is weighed.
  3. 3. The method for preparing a rapid argillized sample slide according to claim 2, wherein the reduction ratio satisfies: When the proportion of the-200 mesh mineral particles in the mud sample is less than 60%, the sampling amount is 0.30-0.50g; when the proportion of the-200 mesh mineral particles in the mud sample is not less than 60% and less than 80%, the sampling amount is 0.20-0.30g; When the proportion of the-200 mesh mineral particles in the mud sample is not less than 80% and less than 90%, the sampling amount is 0.15-0.20g; when the proportion of the mineral particles with the meshes of-200 in the mud sample is more than or equal to 90%, the sampling amount is not higher than 0.10-0.15g.
  4. 4. The method of claim 1, wherein the diluent comprises benzyl alcohol and the curing agent comprises 593 curing agent.
  5. 5. The method of claim 1, wherein the step of preparing the mixed liquid comprises diluting the epoxy resin with the diluent at a volume ratio of 4:1-5:1, and mixing the diluted epoxy resin with the curing agent at a volume ratio of 3:1-4:1 and stirring uniformly.
  6. 6. The method for preparing a rapid argillized sample light sheet according to claim 1, wherein the mold comprises a cylindrical plastic mold with a diameter of 28-32mm and a height of 8-15mm, and the amount of the mixed liquid poured into the bottom of the mold is 1-2.5ml.
  7. 7. The method of claim 1, wherein at least one of the following conditions is satisfied: a. In the heating, the first temperature is 45-50 ℃, and the heating time is 1-5 minutes; b. in the heating and curing process, the second temperature is 65-75 ℃, and the heating and curing time is 25-40 minutes; c. The cooling comprises the step of putting the second sample into water for cooling, wherein the cooling temperature is 10-20 ℃.
  8. 8. The method of claim 1, wherein the post-treatment comprises sequentially performing fine grinding, fine grinding and polishing.
  9. 9. The method of any one of claims 1-8, wherein the mashed sample is dried and free of consolidation prior to the dividing.
  10. 10. A mashed sample sheet, characterized in that the sheet is produced by the rapid mashed sample sheet production method of any one of claims 1 to 9.

Description

Rapid mud sample polished section and preparation method thereof Technical Field The application relates to the field of lithofacies sample preparation, in particular to a rapid mud sample polished section and a preparation method thereof. Background In the research process of mineral resource development and utilization, firstly, the properties of ores and various products need to be ascertained, and research on key mineral characteristic parameters is carried out. In the research process, whether an optical microscope or an automatic mineral analysis system represented by MLA and AMICS is manually adopted, samples are required to be prepared into optical sheets which can be used for instrument testing. Therefore, the sample is prepared into a representative light sheet which can completely and truly reflect the characteristic full view of the sample, and the light sheet is the basis for developing the research on the microscopic characteristics or physical properties of ores such as process mineralogy, lithology and the like and various products. Especially in the process of mineral automatic analysis, the preparation of the sample is more important. With the development of mineral resources going to be lean, thin and miscellaneous, the types and properties of samples in the research process are also diversified and specialized. Many samples are not fully applicable by conventional sample preparation methods that are ubiquitous due to differences in their specific properties. For example, the micro-particle sample is easy to generate particle agglomeration and can not be identified, the soluble part of the water-soluble sample can not completely reflect the whole appearance of the sample because of being dissolved in the grinding and polishing process, and the porous sample is difficult to identify by an automatic analysis device because of easy occurrence of pits and the like. Therefore, for the characteristics of a certain sample, research on a sample preparation method which is suitable for the characteristics of materials of the sample becomes an important part of the research process of the process mineralogy. Development of novel efficient and controllable light sheet curing technology has become a key direction for breaking through the technical bottleneck in the field and pushing the research of technological mineralogy to develop to a higher level. Disclosure of Invention The application aims to provide a rapid mud sample polished section and a preparation method thereof so as to solve the problems. In order to achieve the above purpose, the application adopts the following technical scheme: the application provides a rapid preparation method of a muddy sample polished section, which comprises the following steps: dividing the collected mud sample to obtain an analysis sample, and determining the sampling amount according to the fineness of the sample; Mixing epoxy resin, a diluent and a curing agent to prepare a mixed liquid; filling part of the mixed liquid into the bottom of a mould, adding the analysis sample, stirring and adding the rest mixed liquid until no obvious bubbles exist; Heating and solidifying the first sample at a second temperature to obtain a second sample, and immediately cooling after the heating and solidification are completed to obtain a sample block; And (5) carrying out post-treatment on the completely solidified sample block to obtain the light sheet. Optionally, the dividing is carried out by adopting a cone quartering method, the gram number of the sample is determined according to the mass ratio of the-200 mesh mineral particles in the sample, and the higher the mass ratio of the-200 mesh mineral particles in the sample is, the smaller the gram number of the sample is weighed. Optionally, the reduction satisfies the following relationship: When the proportion of the-200 mesh mineral particles in the mud sample is less than 60%, the sampling amount is 0.30-0.50g; when the proportion of the-200 mesh mineral particles in the mud sample is not less than 60% and less than 80%, the sampling amount is 0.20-0.30g; When the proportion of the-200 mesh mineral particles in the mud sample is not less than 80% and less than 90%, the sampling amount is 0.15-0.20g; when the proportion of the mineral particles with the meshes of-200 in the mud sample is more than or equal to 90%, the sampling amount is not higher than 0.10-0.15g. Optionally, the diluent comprises benzyl alcohol and the curing agent comprises 593 curing agent. Optionally, the step of preparing the mixed liquid comprises the steps of firstly diluting the epoxy resin by using the diluent according to the volume ratio of 4:1-5:1, and then mixing and uniformly stirring the diluted epoxy resin and the curing agent according to the volume ratio of 3:1-4:1. Optionally, the mould comprises a cylindrical plastic mould, wherein the diameter of the cylindrical plastic mould is 28-32mm, the height of the cylindrical plastic mou