Method for Predicting Residual Flocculant Concentration in Mineral Processing Backwater
A flocculant and concentration technology, applied in the field of flocculant concentration determination, can solve problems such as intelligent control of unfavorable flocculants, calculation of flocculant concentration, dosage of difficult flocculants, etc., to achieve dynamic monitoring and intelligent control and prediction. The results are accurate and reliable, and the effect of avoiding human interference
Active Publication Date: 2022-06-21
武钢资源集团金山店矿业有限公司
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Problems solved by technology
[0006] In addition, the above method cannot calculate the residual flocculant concentration in the backwater based on the initial conditions such as flocculant dosage concentration, ore pulp concentration, and mineral particle fineness, so it is difficult to guide the dosage of flocculant in production, and it is not conducive to the realization of flocculation Intelligent control of agent dosage
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[0048] The present invention will be further described in detail below through specific embodiments.
[0049] The present embodiment provides a method for predicting the concentration of residual polyacrylamide flocculant in the return water of magnetite beneficiation in a certain beneficiation plant, and the steps are as follows:
[0050] 1) Select the influencing factors
[0051] At present, it is known that the factors affecting the concentration of residual flocculant in the beneficiation return water are the concentration of flocculant. PAM , pulp concentration C, mineral particle fineness N (the proportion of particle size below 0.074mm), return water placement time T and return water temperature T em (see Table 1 for units).
[0052] Select 30 groups of specific values of influencing factors from high to low or from low to high according to the grades determined in the beneficiation (see Table 1), and carry out the beneficiation flocculation tests according to the f...
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The invention discloses a method for predicting the concentration of residual flocculant in mineral processing backwater, comprising the following steps: 1) selecting L parameters that have influence on the concentration of residual flocculant in mineral processing return water as influencing factors, and taking n groups of specific values to carry out mineral processing respectively Flocculation test to obtain the residual flocculant concentration C in the backwater corresponding to each set of values F ; 2) Establish a matrix of influencing factors, use the entropy weight method to determine the weight of each influencing factor, and eliminate irrelevant influencing factors according to the weight, leaving m characteristic influencing factors; 3) Perform fitting to obtain the residual flocculant concentration C in the backwater F and the fitting function of each characteristic influencing factor; 4) Substituting each characteristic influencing factor corresponding to the ore dressing backwater into the fitting function, the residual flocculant concentration C of a certain ore dressing backwater can be calculated F . The prediction result of the method is accurate and reliable, and is convenient for intelligent control.
Description
technical field [0001] The invention relates to a method for measuring the concentration of a flocculant, in particular to a method for predicting the concentration of the residual flocculant in the beneficiation return water. Background technique [0002] In the beneficiation process of iron ore and coal mine, in order to improve the settlement effect, it is often necessary to add a flocculant such as polyacrylamide. In order to ensure the flocculation effect, the flocculant is generally added in excess, resulting in a certain amount of flocculant inevitably remaining in the beneficiation return water (clarified water in the tailings slurry). In order to fully utilize the resources of the beneficiation process, the beneficiation backwater will enter the next beneficiation process as circulating water, and the residual flocculant in the backwater will have an impact on the beneficiation process. The adjustment is of great help. Due to the small amount of flocculant added i...
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IPC IPC(8): G16C20/70G16C20/20
CPCG16C20/70G16C20/20
Inventor 谭青陈斌瓉罗文斌陈进军陈鹏
Owner 武钢资源集团金山店矿业有限公司