Soft measurement method for floating fine coal ash from slurry based on data drive

A coal slime flotation, data-driven technology, applied in the direction of electrical digital data processing, special data processing applications, fuel oil testing, etc., can solve the problems of difficult to achieve results, poor ability of over-learning and promotion, and inability to know flotation clean coal products in real time ash etc.

Inactive Publication Date: 2009-03-11
SHANXI LUAN MINING GRP +1
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Problems solved by technology

[0004] The problem with this control strategy is that it is impossible to know the ash content of the flotation clean coal product in real time, so that the quality of the flotation clean coal is stuck.
Traditional statistical methods study the asymptotic theory when the number of samples app...

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  • Soft measurement method for floating fine coal ash from slurry based on data drive
  • Soft measurement method for floating fine coal ash from slurry based on data drive
  • Soft measurement method for floating fine coal ash from slurry based on data drive

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Embodiment Construction

[0082] Taking the flotation process of a large-scale coal preparation plant in a certain mine as an example, the -0.5mm coal slime in the coal preparation plant is processed by direct current flotation. The ash content of the material is 16.3% (as the input condition of the man-machine interface), and the ash content of the flotation clean coal is 10%. The flotation dosing process is as figure 1 As shown, the flotation feed is pumped into the pulp preparer 2 through the flotation feed pump 3, after adding the flotation collector and foaming agent in the pulp preparer 2, it is fully stirred and sent into the flotation machine 1 , add the flotation agent in the third tank inlet section of the flotation machine 1 to recover clean coal as much as possible. Finally, the flotation clean coal is scraped out by the scraping mechanism to form a clean coal product, and the tailings are self-flowing and dehydrated to obtain the flotation tailings.

[0083] Among them, the model of the...

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Abstract

The invention discloses a soft measurement method of a coal slurry flotation cleans ash based on date-driven, which establishes a hardware platform and a flotation cleans ash. Flotation feeding concentration, flow, flotation medicament dosage and tailings flashboard position are used as auxiliary variables, the flotation cleans ash is used as a master variable, the auxiliary variables are used as input and the flotation cleans ash is used as model output so as to carry out soft measurement modeling, and calibration and parameter correction are carried out to a model so as to estimate the ash content of the current flotation cleans in real-time. The method has simple application and low cost, can realize the soft measurement of the flotation cleans ash by only needing a small quantity of samples, thus improving the measurement timelessness, and being beneficial to realizing the optimized control of the flotation procedure.

Description

technical field [0001] The invention relates to the field of soft measurement technology in the field of industrial process control, in particular to a soft measurement method for the ash content of flotation clean coal in the coal slime flotation process. Background technique [0002] Soft measurement is an effective way to solve the situation that some key parameters need to be measured urgently but there is no corresponding test instrument, or the test instrument is too expensive. Specifically, soft measurement is to use the variables that need to be concerned about (that is, the variables to be measured) as the leading variables, and the related variables (measurable variables) that cause changes in the leading variables to be used as auxiliary variables, and the data of the auxiliary variables are used as input. The method of outputting the data and building a mathematical model to obtain the value of the leading variable, so soft measurement is sometimes called soft in...

Claims

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Application Information

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IPC IPC(8): G01N35/00G01N33/22G06F19/00G06F17/50
Inventor 王然风王东飞高雪明李文德张文平裴建勋
Owner SHANXI LUAN MINING GRP
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