CN-122016411-A - Gold ore pulp sampling and detecting process

Abstract

The invention relates to the technical field of ore pulp sampling and discloses a gold ore pulp sampling and detecting process, which comprises the following steps that firstly, a plurality of sampling points are uniformly distributed on a main pipeline of the ore pulp conveying in gold production along the extending direction of the pipeline; the method comprises the steps of carrying out first sampling through a sampling container, carrying out at least subsampling, mixing all subsampled samples of all sampling points, and extracting a preset amount of samples from the uniformly stirred mixed samples to serve as final inspection samples. According to the invention, the defect that only partial ore pulp can be obtained by a single sampling point is avoided by arranging the plurality of sampling points on the pulp conveying pipeline, and different flow stages of ore pulp in the pipeline are covered by 3 times of interval sampling, so that the influence of uneven ore pulp distribution on the sample is avoided by matching quantitative sampling and full mixing treatment, and the finally obtained inspection sample can reflect the integral characteristics of the ore pulp in the pipeline more truly and comprehensively.

Inventors

• ZHANG HONGFENG
• HE WENLU
• LUO XUAN
• LI HUI

Assignees

• 贵州亚太矿业有限公司

Dates

Publication Date

20260512

Application Date

20260302

Claims (9)

1. 1. The gold pulp sampling and detecting process is characterized by comprising the following steps of: Uniformly arranging a plurality of sampling points on a slurry conveying main pipeline in gold production along the extending direction of the pipeline, wherein each sampling point is communicated with the slurry conveying main pipeline through a sampling branch pipeline, each sampling branch pipeline is provided with a sampling valve capable of controlling on-off independently, and all the sampling valves are in a closed state in an initial state; Sequentially opening sampling valves of all sampling points, and performing first sampling through a sampling container, wherein the single sampling amount of each sampling point is a preset amount; step three, repeating the sampling operation of the step two after the interval of preset time, and performing at least subsampling, wherein the total sampling times are not less than three times, and controlling the on-off state of the sampling valve according to the operation requirement after the sampling is completed; Step four, mixing all sub-sampling samples of all sampling points, and fully stirring the mixed samples; and fifthly, extracting a preset amount of samples from the uniformly stirred mixed samples to serve as final inspection samples, and sending the final inspection samples to a detection department for detection analysis.
2. 2. The process for sampling and detecting gold pulp according to claim 1, wherein the number of the sampling points in the first step is 3-5.
3. 3. The gold pulp sampling test process according to claim 1, wherein the single sampling amount of each sampling point in the second step is controlled to be 1L.
4. 4. The process for detecting gold ore pulp sampling according to claim 1, wherein the corresponding sampling valve is closed after each sampling in the second and third steps is completed, and is opened until the next sampling is completed.
5. 5. The gold pulp sampling detection process according to claim 1, wherein the sampling valve is kept open after each sampling in the second and third steps is completed, so that the pulp is continuously discharged from the sampling branch pipeline, the sampling valve is closed after all sampling operations are completed, and the continuously discharged pulp is returned to the pulp conveying main pipeline or is recovered after collection.
6. 6. The gold pulp sampling and detecting process according to claim 4 or 5, wherein the mixing mode of the samples in the fourth step is that the sampled samples of all sampling points are directly poured into the same mixing container for stirring and mixing.
7. 7. The gold pulp sampling and detecting process according to claim 4 or 5, wherein the mixing mode of the samples in the fourth step is that the sampled samples of each sampling point are poured into an intermediate mixing container and stirred uniformly, 1L of intermediate sample is extracted from each intermediate mixing container, and all the intermediate samples are poured into the same total mixing container and stirred and mixed.
8. 8. The process for sampling and testing gold pulp according to claim 1, wherein the preset time in the third step is at least 10 minutes.
9. 9. The gold pulp sampling test process according to claim 1, wherein the three steps are sub-sampling, and the total sampling times are three times.

Description

Gold ore pulp sampling and detecting process Technical Field The invention relates to the technical field of ore pulp sampling, in particular to a gold ore pulp sampling detection process. Background In gold production process, ore pulp sampling detection is the production management and control link of key, and its core purpose is through analyzing the index such as ingredient, concentration, granularity of ore pulp sample, provides accurate foundation for the parameter adjustment of production processes such as front end crushing, grinding, flotation, and guarantee simultaneously that follow-up gold refines efficiency and the product quality of process, and the reliability of detection data has directly been decided to the accuracy of ore pulp sampling, and then influences the stability and the economic nature of whole production flow. At present, the general ore pulp sampling mode adopted in the gold production field is to directly extract ore pulp samples from the pulp conveying pipeline, however, because the ore pulp is influenced by factors such as ore pulp concentration, granularity distribution, conveying flow speed, pipeline layout and the like in the pipeline conveying process, the distribution of the ore pulp in the pipeline is uneven, indexes such as ore pulp components and granularity in a local area are greatly different from the integral level of the ore pulp in the pipeline, and when the direct sampling is carried out, only a certain local position and a certain instantaneous ore pulp sample in the pipeline can be obtained, and the integral characteristics of the ore pulp in the pipeline cannot be comprehensively reflected by the samples, so that deviation exists in detection data. Therefore, we propose a gold pulp sampling and detecting process. Disclosure of Invention The invention aims to provide a gold pulp sampling detection process, which is characterized in that a plurality of sampling points are arranged on a pulp conveying pipeline, so that the defect that a single sampling point can only acquire local pulp is avoided, different flow stages of pulp in the pipeline are covered through 3 times of interval sampling, the influence of uneven pulp distribution on the sample is avoided by matching quantitative sampling and full mixing treatment, the integral characteristics of the pulp in the pipeline can be reflected more truly and comprehensively by the finally acquired inspection sample, and the problems in the background art are solved. In order to achieve the purpose, the invention provides the following technical scheme that the gold pulp sampling and detecting process comprises the following steps: Uniformly arranging a plurality of sampling points on a slurry conveying main pipeline in gold production along the extending direction of the pipeline, wherein each sampling point is communicated with the slurry conveying main pipeline through a sampling branch pipeline, each sampling branch pipeline is provided with a sampling valve capable of controlling on-off independently, and all the sampling valves are in a closed state in an initial state; Sequentially opening sampling valves of all sampling points, and performing first sampling through a sampling container, wherein the single sampling amount of each sampling point is a preset amount; step three, repeating the sampling operation of the step two after the interval of preset time, and performing at least subsampling, wherein the total sampling times are not less than three times, and controlling the on-off state of the sampling valve according to the operation requirement after the sampling is completed; Step four, mixing all sub-sampling samples of all sampling points, and fully stirring the mixed samples; and fifthly, extracting a preset amount of samples from the uniformly stirred mixed samples to serve as final inspection samples, and sending the final inspection samples to a detection department for detection analysis. As a preferred embodiment of the present invention, the number of the sampling points in the step one is 3-5. As a preferred embodiment of the present invention, the single sampling amount of each sampling point in the second step is controlled to be 1L. As a preferred embodiment of the present invention, the corresponding sampling valve is closed after each sampling in the second and third steps is completed, and is opened until the next sampling. As a preferred embodiment of the invention, the sampling valve is kept open after each sampling in the second and third steps, so that the ore pulp is continuously discharged from the sampling branch pipeline, the sampling valve is closed after all sampling operations are completed, and the continuously discharged ore pulp is returned to the main pulp conveying pipeline or is recovered after collection. In a preferred embodiment of the present invention, the samples in the fourth step are mixed by directly pouring the sub-sampled samples at all sampling points into th