Non-contact pipeline flowing ore pulp concentration online device and detection method

A pulp concentration, non-contact technology, applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems of frequent maintenance of weighing cleaning equipment, low sampling accuracy, large concentration error, etc.

Pending Publication Date: 2021-09-14
NORTHWEST RES INST OF MINING & METALLURGY INST
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AI-Extracted Technical Summary

Problems solved by technology

Although the ordinary concentration pot weighing method is widely used, it is labor-intensive and the detection data is not timely. Especially when the concentration is high, the concentration error is large due to the difference of differe...
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Method used

Adopt ultrasonic densitometer to carry out concentration detection to the same ore pulp of embodiment 2, after measuring ore pulp mass concentration is 26.50%. Compared with Example 2, the ultrasonic densitometer is more affected by changes in the particle size of air bubbles and solid particles, and the equipment maintenance is more frequ...
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Abstract

The invention relates to a non-contact pipeline flowing ore pulp concentration online device, which comprises a pipeline for transporting ore pulp, and is characterized in that a plurality of pipeline fixed bearing fulcrums arranged on the horizontal ground and a wagon balance type electronic scale are uniformly distributed at the bottom of the pipeline; the wagon balance type electronic scale is connected with a concentration data processing display through a data transmission line, the top of the wagon balance type electronic scale is in contact with the outer wall of the pipeline, and the bottom of the wagon balance type electronic scale is connected with the horizontal ground. Meanwhile, the invention further discloses a non-contact pipeline flowing ore pulp concentration online detection method. The method has the advantages of high accuracy of the detected pipeline ore pulp concentration, small influence of ore pulp properties, low failure rate and the like, and particularly, the accuracy, the stability and the effectiveness of the detection of the ore pulp with the mass concentration exceeding 50% are higher.

Application Domain

Material weighing

Technology Topic

Data transmissionProcess engineering +4

Image

  • Non-contact pipeline flowing ore pulp concentration online device and detection method

Examples

  • Experimental program(2)
  • Comparison scheme(4)

Example Embodiment

[0043] Example 1
[0044] A non-contact method for on-line detecting the concentration of pipeline flowing pulp, comprising the following steps:
[0045] ⑴Initial data testing and input:
[0046] When the tube is empty, the weight taken by the floor scale electronic scale 5 is M 0 =50Kg; when the pipeline is filled with flowing water, the weight taken by the floor scale electronic scale 5 is M 1 =150Kg; the true specific gravity of the fixed material in the pulp is determined to be p=3, and the obtained M 1 , M 0 , p initial data input to the concentration data processing display 3.
[0047] ⑵On-line test of pulp concentration in the pipeline:
[0048] Set the initial error coefficient r=1, the real-time weight M of the pipeline 1 weighed by the floor scale electronic scale 5, the unit is Kg; it is transmitted to the concentration data processing display 3 through the data transmission line 4, and is calculated and output through the online output mass concentration data model The pulp mass concentration value.
[0049] The online output mass concentration data model is C=1.5(M-150)/(M-50).
[0050] (3) On-line error coefficient correction of the detection system:
[0051] Under the same p condition, the pulp mass concentration output by the detection system in step (2) is =51.56%, =54.87%, =60.92%; at the same time, the laboratory takes the average pulp concentration in the pipeline as the real pulp mass concentration as the real pulp concentration is =50.00%, =55.00%, =60.00%.
[0052] Calculate and re-enter the error coefficient r=0.9853 based on the mass concentration of pulp tested several times and the real pulp mass concentration.
[0053] ⑷Production application stage:
[0054] The interval pipeline and the weight of the pulp in the pipeline are weighed by the floor scale electronic scale 5, and the unit is Kg; and transmitted to the concentration data processing display 3 through the data transmission line 4, and automatically calculated by the data model of step (2) in the concentration data processing display 3 Display the pulp concentration C=1.4853*(M-150)/(M-50) detected online in real time.
[0055] After testing, a kind of non-contact pipeline pulp concentration online detection method described in embodiment 1, the electronic scale weighing weight M=200Kg of test, then the real-time detection pulp mass concentration of the pulp displayed in the concentration data processing display 3 is 49.51% . The detection device is easy to maintain in production and application, and the failure rate is low, the maintenance and repair workload of the device is small, and the detection result of the output pulp mass concentration is more stable and reliable.

Example Embodiment

[0062] Example 2
[0063] A non-contact method for on-line detecting the concentration of pipeline flowing pulp, comprising the following steps:
[0064] ⑴Initial data testing and input:
[0065] When the tube is empty, the weight taken by the floor scale electronic scale 5 is M 0 =150Kg; when the pipeline is filled with flowing water, the weight taken by the floor scale electronic scale 5 is M 1 =310Kg; the true specific gravity of the fixed material in the pulp is determined to be p=2.5, and the obtained M 1 , M 0 , p initial data input to the concentration data processing display 3.
[0066] ⑵On-line test of pulp concentration in the pipeline:
[0067] Set the initial error coefficient r=1, the real-time weight M of the pipeline 1 weighed by the floor scale electronic scale 5, the unit is Kg; it is transmitted to the concentration data processing display 3 through the data transmission line 4, and is calculated and output through the online output mass concentration data model The pulp mass concentration value.
[0068] The online output mass concentration data model is C=(2.5/1.5)*(M-310)/(M-150).
[0069] (3) On-line error coefficient correction of the detection system:
[0070] Under the same p condition, the pulp mass concentration output by the detection system in step (2) is =23.15%, =27.19%, =30.33%; at the same time, the laboratory takes the average pulp concentration in the pipeline as the real pulp mass concentration as the real pulp concentration is =22.00%, =26.00%, =29.00%.
[0071] Calculate and re-enter the error coefficient r=0.9520 based on the mass concentration of pulp tested several times and the real pulp mass concentration.
[0072] ⑷Production application stage:
[0073] The interval pipeline and the weight of the pulp in the pipeline are weighed by the floor scale electronic scale 5, and the unit is Kg; and transmitted to the concentration data processing display 3 through the data transmission line 4, and automatically calculated by the data model of step (2) in the concentration data processing display 3 Display the pulp concentration C=1.5867*(M-310)/(M-150) detected online in real time.
[0074] After testing, a kind of non-contact pipeline pulp concentration online detection method described in embodiment 1, the electronic scale weighing weight M=340Kg of test, then the real-time detection pulp mass concentration of the pulp displayed in the concentration data processing display 3 is 25.05% . The detection device is easy to maintain in production and application, and the failure rate is low, the maintenance and repair workload of the device is small, and the detection result of the output pulp mass concentration is more stable and reliable.

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