Gold ore pulp sampling detection process

Abstract

The invention relates to the technical field of ore pulp sampling, and discloses a gold ore pulp sampling detection process which comprises the following steps: step 1, uniformly distributing a plurality of sampling points on a pulp conveying main pipeline for gold production along the extension direction of the pipeline; 2, sampling for the first time through a sampling container; step 3, sampling for at least two times; step 4, mixing each sampling sample of all sampling points; and 5, extracting a preset amount of sample from the uniformly stirred mixed sample as a final sample for inspection. A plurality of sampling points are arranged on the pulp conveying pipeline, the defect that only local ore pulp can be obtained at a single sampling point is overcome, different circulation stages of the ore pulp in the pipeline are covered through three times of interval sampling, quantitative sampling and sufficient mixing treatment are matched, the influence of uneven distribution of the ore pulp on samples is avoided, and the sampling accuracy is improved. And the finally obtained submitted sample can reflect the overall characteristics of the ore pulp in the pipeline more truly and comprehensively.

Description

Technical Field

[0001] This invention relates to the field of mineral slurry sampling technology, specifically a gold mineral slurry sampling and testing process. Background Technology

[0002] In the gold production process, slurry sampling and testing is a critical production control link. Its core purpose is to provide accurate basis for adjusting the parameters of upstream production processes such as crushing, grinding, and flotation by analyzing the composition, concentration, particle size, and other indicators of slurry samples. At the same time, it ensures the efficiency and product quality of subsequent gold refining processes. The accuracy of slurry sampling directly determines the reliability of the test data, which in turn affects the stability and economy of the entire production process.

[0003] Currently, the common method for sampling gold slurry at production sites is to directly extract samples from the slurry transport pipeline. However, due to factors such as slurry concentration, particle size distribution, flow rate, and pipeline layout during pipeline transport, the distribution of slurry within the pipeline is uneven. The composition and particle size of slurry in localized areas differ significantly from the overall level of the slurry within the pipeline. Direct sampling often only yields slurry samples from a specific location and at a specific moment within the pipeline, failing to comprehensively reflect the overall characteristics of the slurry and leading to biased test data. Therefore, we propose a gold slurry sampling and testing process. Summary of the Invention

[0004] The purpose of this invention is to provide a gold slurry sampling and testing process. By setting multiple sampling points on the slurry delivery pipeline, the defect of a single sampling point only being able to obtain local slurry can be avoided. Furthermore, by sampling at three intervals, the different flow stages of the slurry in the pipeline are covered. Combined with quantitative sampling and thorough mixing, the influence of uneven slurry distribution on the sample is avoided. This allows the final sample to more realistically and comprehensively reflect the overall characteristics of the slurry in the pipeline, thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a gold slurry sampling and testing process, comprising the following steps:

[0006] Step 1: On the main slurry pipeline for gold production, multiple sampling points are evenly distributed along the pipeline extension direction. Each sampling point is connected to the main slurry pipeline through a sampling branch pipeline, and each sampling branch pipeline is equipped with a sampling valve that can be independently controlled to open and close. In the initial state, all sampling valves are in the closed state.

[0007] Step 2: Open the sampling valves at each sampling point in sequence, and take the first sample through the sampling container. The single sampling amount at each sampling point is a preset quantitative amount.

[0008] Step 3: After a preset time interval, repeat the sampling operation of Step 2, perform at least two samplings, and a total of no less than three samplings. After sampling, control the on / off state of the sampling valve according to the operational requirements.

[0009] Step 4: Mix all the samples taken from all sampling points and thoroughly stir the mixed samples.

[0010] Step 5: Extract a predetermined amount of sample from the well-stirred mixed sample as the final sample to be sent to the testing department for testing and analysis.

[0011] In a preferred embodiment of the present invention, the number of sampling points in step one is 3-5.

[0012] In a preferred embodiment of the present invention, the single sampling amount at each sampling point in step two is controlled to be 1L.

[0013] In a preferred embodiment of the present invention, the corresponding sampling valve is closed after each sampling in steps two and three, and is reopened for the next sampling.

[0014] In a preferred embodiment of the present invention, after each sampling is completed in steps two and three, the sampling valve is kept open so that the slurry continues to be discharged from the sampling branch pipeline. After all sampling operations are completed, the sampling valve is closed and the continuously discharged slurry is returned to the main slurry pipeline or collected and recycled.

[0015] In a preferred embodiment of the present invention, the sample mixing method in step four is as follows: all samples from each sampling point are directly poured into the same mixing container and stirred.

[0016] In a preferred embodiment of the present invention, the sample mixing method in step four is as follows: first, pour the samples from each sampling point into an intermediate mixing container and stir evenly; extract 1L of intermediate sample from each intermediate mixing container; and then pour all intermediate samples into the same total mixing container for stirring and mixing.

[0017] In a preferred embodiment of the present invention, the preset time in step three is at least 10 minutes.

[0018] In a preferred embodiment of the present invention, the third step involves secondary sampling, for a total of three sampling times.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] 1. This invention achieves multi-location sampling of slurry within the pipeline by setting multiple sampling points on the slurry delivery pipeline. This avoids the limitation of a single sampling point only obtaining local slurry data. Furthermore, by sampling at three intervals, it covers different flow stages of the slurry within the pipeline. Combined with quantitative sampling and thorough mixing, it avoids the influence of uneven slurry distribution on the sample. This allows the final sample obtained for testing to more accurately and comprehensively reflect the overall characteristics of the slurry within the pipeline, providing accurate samples and ensuring the reliability of the test data.

[0021] 2. By setting up multiple sampling methods, this invention takes into account both the convenience of sampling and the representativeness of the samples. Producers can also choose the number of sampling points and the number of sampling times according to their needs, so as to obtain more representative samples and higher precision test data.

[0022] 3. The sampling equipment required for this invention are all existing and mature equipment, without the need for additional research and development of complex special equipment. The equipment investment cost is low, and the steps of each sampling method are clear and the process is standardized. Operators can master the skills after simple training, making it easy to promote and apply in gold production sites. Attached Figure Description

[0023] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0024] Figure 1 This is a flowchart of a gold slurry sampling and testing process according to the present invention. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0026] Example 1

[0027] Please see Figure 1 This invention provides a technical solution: a gold ore slurry sampling and testing process, comprising the following steps:

[0028] Step 1: On the slurry pipeline for gold production, evenly arrange 3-5 sampling points along the pipeline extension direction. Each sampling point is connected to the main slurry pipeline through a sampling branch pipeline, and each sampling branch pipeline is equipped with a sampling valve that can be independently controlled to open and close. All sampling valves are in the closed state. Sampling points should avoid pipeline bends, valves and other locations that are prone to causing slurry turbulence. Prioritize the middle area of ​​the straight section of the pipeline to ensure the stability of the slurry flow at each sampling point.

[0029] Step 2: Open the sampling valves at different sampling points in sequence and take the first sample through the sampling container. The sampling volume at each sampling point is controlled at 1L. After sampling, immediately close the sampling valve at the corresponding sampling point. The sampling container should be made of corrosion-resistant hard plastic or stainless steel. Before sampling, the inner wall of the container should be cleaned 2-3 times to remove residual impurities. Avoid slurry splashing during sampling to prevent deviation in the sampling volume.

[0030] Step 3: After an interval of at least 10 minutes, open the sampling valves at different sampling points in sequence again and take a second sample through a new sampling container. The sampling volume at each sampling point is also controlled at 1L. After the sampling is completed, immediately close the sampling valve at the corresponding sampling point, and then repeat the above operation for a third sampling operation. You can also perform more samplings as needed.

[0031] Step 4: Pour all samples from all sampling points into the same mixing container and thoroughly mix the samples by stirring for at least 5 minutes.

[0032] Step 5: Extract a predetermined amount of sample from the thoroughly mixed sample in the mixing container as the final sample for testing and analysis. The final sample is extracted using a multi-point sampling method, extracting equal amounts of sample from three different locations (top, middle, and bottom) of the mixing container and combining them. The extraction volume should not be less than 500 mL. Immediately after extraction, seal the sample container and label it with the sampling date, sampling point information, etc.

[0033] Example 2

[0034] Please see Figure 1 This invention provides a technical solution: a gold ore slurry sampling and testing process, comprising the following steps:

[0035] Step 1: On the slurry pipeline for gold production, evenly arrange 3-5 sampling points along the pipeline extension direction. Each sampling point is connected to the main slurry pipeline through a sampling branch pipeline, and each sampling branch pipeline is equipped with a sampling valve that can be independently controlled to open and close. All sampling valves are in the closed state. Sampling points should avoid pipeline bends, valves and other locations that are prone to causing slurry turbulence. Prioritize the middle area of ​​the straight section of the pipeline to ensure the stability of the slurry flow at each sampling point.

[0036] Step 2: Open the sampling valves at different sampling points in sequence and take the first sample through the sampling container. The sampling volume at each sampling point is controlled at 1L. After sampling, immediately close the sampling valve at the corresponding sampling point. The sampling container should be made of corrosion-resistant hard plastic or stainless steel. Before sampling, the inner wall of the container should be cleaned 2-3 times to remove residual impurities. Avoid slurry splashing during sampling to prevent deviation in the sampling volume.

[0037] Step 3: After an interval of at least 10 minutes, open the sampling valves at different sampling points in sequence again and take a second sample through a new sampling container. The sampling volume at each sampling point is also controlled at 1L. After the sampling is completed, immediately close the sampling valve at the corresponding sampling point, and then repeat the above operation for a third sampling operation. You can also perform more samplings as needed.

[0038] Step 4: For each sampling point, pour the slurry samples obtained from 3 or more samplings into a dedicated intermediate mixing container. Thoroughly stir the samples in each intermediate mixing container. After stirring, extract a preset amount of intermediate sample from the intermediate mixed samples of each sampling point, with an extraction volume of 1L. Then, pour all the intermediate samples from all sampling points into the same total mixing container and thoroughly mix the samples by stirring for no less than 5 minutes.

[0039] Step 5: Extract a predetermined amount of sample from the thoroughly mixed sample in the main mixing container as the final sample for testing. Send the sample to the testing department for analysis. The final sample extraction adopts a multi-point sampling method. Extract equal amounts of sample from three different positions (top, middle, and bottom) of the mixing container and combine them. The extraction volume should not be less than 500 mL. Immediately after extraction, seal the sample container and label it with the sampling date, sampling point information, etc.

[0040] Example 3

[0041] Please see Figure 1 The present invention provides another technical solution: a gold slurry sampling and testing process, comprising the following steps:

[0042] Step 1: On the slurry pipeline for gold production, evenly arrange 3-5 sampling points along the pipeline extension direction. Each sampling point is connected to the main slurry pipeline through a sampling branch pipeline, and each sampling branch pipeline is equipped with a sampling valve that can be independently controlled to open and close. All sampling valves are in the closed state. Sampling points should avoid pipeline bends, valves and other locations that are prone to causing slurry turbulence. Prioritize the middle area of ​​the straight section of the pipeline to ensure the stability of the slurry flow at each sampling point.

[0043] Step 2: Open the sampling valves at different sampling points in sequence and take the first sample through the sampling container. The sampling volume at each sampling point is controlled at 1L. After sampling, do not close the sampling valve. Keep the valve open so that the slurry can be continuously discharged from the sampling branch pipeline. The discharged slurry can be returned to the main slurry pipeline or collected for recycling to avoid resource waste. The sampling container should be made of corrosion-resistant hard plastic or stainless steel. Before sampling, the inner wall of the container should be cleaned 2-3 times to remove residual impurities. Avoid slurry splashing during sampling to prevent sampling volume deviation.

[0044] Step 3: After an interval of at least 10 minutes, take a second sample using a new sampling container. The sample volume at each sampling point should also be controlled at 1L. After sampling, do not close the sampling valve. Keep the valve open so that the slurry continues to be discharged from the sampling branch pipeline. Then repeat the above operation for a third sampling operation. After the third sampling is completed, close the sampling valve. You can also perform more samplings as needed.

[0045] Step 4: Pour all samples from all sampling points into the same mixing container and thoroughly mix the samples by stirring for at least 5 minutes.

[0046] Step 5: Extract a predetermined amount of sample from the thoroughly mixed sample in the mixing container as the final sample for testing and analysis. The final sample is extracted using a multi-point sampling method, extracting equal amounts of sample from three different locations (top, middle, and bottom) of the mixing container and combining them. The extraction volume should not be less than 500 mL. Immediately after extraction, seal the sample container and label it with the sampling date, sampling point information, etc.

[0047] Example 4

[0048] Please see Figure 1 This invention provides a technical solution: a gold ore slurry sampling and testing process, comprising the following steps:

[0049] Step 1: On the slurry pipeline for gold production, evenly arrange 3-5 sampling points along the pipeline extension direction. Each sampling point is connected to the main slurry pipeline through a sampling branch pipeline, and each sampling branch pipeline is equipped with a sampling valve that can be independently controlled to open and close. All sampling valves are in the closed state. Sampling points should avoid pipeline bends, valves and other locations that are prone to causing slurry turbulence. Prioritize the middle area of ​​the straight section of the pipeline to ensure the stability of the slurry flow at each sampling point.

[0050] Step 2: Open the sampling valves at different sampling points in sequence and take the first sample through the sampling container. The sampling volume at each sampling point is controlled at 1L. After sampling, do not close the sampling valve. Keep the valve open so that the slurry can be continuously discharged from the sampling branch pipeline. The discharged slurry can be returned to the main slurry pipeline or collected for recycling to avoid resource waste. The sampling container should be made of corrosion-resistant hard plastic or stainless steel. Before sampling, the inner wall of the container should be cleaned 2-3 times to remove residual impurities. Avoid slurry splashing during sampling to prevent sampling volume deviation.

[0051] Step 3: After an interval of at least 10 minutes, take a second sample using a new sampling container. The sample volume at each sampling point should also be controlled at 1L. After sampling, do not close the sampling valve. Keep the valve open so that the slurry continues to be discharged from the sampling branch pipeline. Then repeat the above operation for a third sampling operation. After the third sampling is completed, close the sampling valve. You can also perform more samplings as needed.

[0052] Step 4: For each sampling point, pour the slurry samples obtained from 3 or more samplings into a dedicated intermediate mixing container. Thoroughly stir the samples in each intermediate mixing container. After stirring, extract a preset amount of intermediate sample from the intermediate mixed samples of each sampling point, with an extraction volume of 1L. Then, pour all the intermediate samples from all sampling points into the same total mixing container and thoroughly mix the samples by stirring for no less than 5 minutes.

[0053] Step 5: Extract a predetermined amount of sample from the thoroughly mixed sample in the main mixing container as the final sample for testing. Send the sample to the testing department for analysis. The final sample extraction adopts a multi-point sampling method. Extract equal amounts of sample from three different positions (top, middle, and bottom) of the mixing container and combine them. The extraction volume should not be less than 500 mL. Immediately after extraction, seal the sample container and label it with the sampling date, sampling point information, etc.

[0054] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the scope of the invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0055] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A gold slurry sampling and testing process, characterized in that, Includes the following steps: Step 1: On the main slurry pipeline for gold production, multiple sampling points are evenly distributed along the pipeline extension direction. Each sampling point is connected to the main slurry pipeline through a sampling branch pipeline, and each sampling branch pipeline is equipped with a sampling valve that can be independently controlled to open and close. In the initial state, all sampling valves are in the closed state. Step 2: Open the sampling valves at each sampling point in sequence, and take the first sample through the sampling container. The single sampling amount at each sampling point is a preset quantitative amount. Step 3: After a preset time interval, repeat the sampling operation of Step 2, perform at least two samplings, and a total of no less than three samplings. After sampling, control the on / off state of the sampling valve according to the operational requirements. Step 4: Mix all the samples taken from all sampling points and thoroughly stir the mixed samples. Step 5: Extract a predetermined amount of sample from the well-stirred mixed sample as the final sample to be sent to the testing department for testing and analysis.

2. The gold slurry sampling and testing process according to claim 1, characterized in that: The number of sampling points in step one is 3-5.

3. The gold slurry sampling and testing process according to claim 1, characterized in that: In step two, the single sampling volume at each sampling point is controlled to be 1L.

4. The gold slurry sampling and testing process according to claim 1, characterized in that: In steps two and three, the corresponding sampling valve is closed after each sampling is completed, and then reopened for the next sampling.

5. The gold slurry sampling and testing process according to claim 1, characterized in that: In steps two and three, after each sampling is completed, the sampling valve remains open so that the slurry continues to be discharged from the sampling branch pipeline. After all sampling operations are completed, the sampling valve is closed, and the continuously discharged slurry is returned to the main slurry pipeline or collected and recycled.

6. A gold slurry sampling and testing process according to claim 4 or 5, characterized in that: The sample mixing method in step four is as follows: all samples from each sampling point are directly poured into the same mixing container and stirred.

7. A gold slurry sampling and testing process according to claim 4 or 5, characterized in that: The sample mixing method in step four is as follows: first, pour the samples from each sampling point into an intermediate mixing container and stir evenly; extract 1L of intermediate sample from each intermediate mixing container; and then pour all intermediate samples into the same main mixing container for stirring and mixing.

8. The gold slurry sampling and testing process according to claim 1, characterized in that: The preset time for step three is at least 10 minutes.

9. The gold slurry sampling and testing process according to claim 1, characterized in that: The three steps involve secondary sampling, for a total of three sampling times.

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