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Method for calculating distribution curve of three-product cyclone on-line

A cyclone and three-product technology, which is applied in the field of online calculation of the three-product cyclone distribution curve, can solve the lag, high labor, time and economic costs, and the inability to realize the significance of real-time monitoring of the cyclone sorting effect, etc. question

Active Publication Date: 2020-02-11
TIANDI TANGSHAN MINING TECH
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  • Claims
  • Application Information

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Problems solved by technology

Due to dissociation and mudification in the process of raw coal separation, errors and time lags in manual sampling, high labor, time and economic costs, it is impossible to realize the significance of real-time monitoring of the cyclone separation effect

Method used

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  • Method for calculating distribution curve of three-product cyclone on-line
  • Method for calculating distribution curve of three-product cyclone on-line
  • Method for calculating distribution curve of three-product cyclone on-line

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Embodiment Construction

[0083] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solution of the present invention will be further described below in conjunction with specific examples.

[0084] Such as figure 1 As shown, a method for calculating the distribution curve of a three-product cyclone online includes the following steps:

[0085] S1, respectively collect the input density ρ of the first section of the three-product cyclone f1 , overflow density ρ o1 and underflow density ρ u1 , and the feed density ρ of the second stage f2 , overflow density ρ o2 and underflow density ρ u2 , in which, the concentrated result of the first-stage suspension of the three-product cyclone is used as the second-stage high-density suspension, and ρ u1 = ρ f2 , the present invention achieves ρ through the drainage method of the middle section medium of the cyclone u1 Measurement.

[0086] S2, calculate the relative density level of the den...

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Abstract

The invention discloses a method for calculating a distribution curve of a three-product cyclone on line. The method calculates the distribution curve of the cyclone by establishing a theoretical model of corresponding particle grade and density grade, obtains the actual separation densities of the first section and the second section of the cyclone according to the distribution curve, and calculates and obtains the separation efficiency according to the distribution curve. Compared with the traditional method of manually sampling and carrying out floating and settling experiments to obtain the distribution curve of the cyclone, the method is more accurate, quick and convenient, and monitor the separation effect of the cyclone in real time is realized.

Description

Technical field: [0001] The invention belongs to the technical field of gravity coal preparation, and in particular relates to a method for online calculation of distribution curves of three-product cyclones. Background technique: [0002] Minerals are mineral particle groups composed of different particle sizes and densities. Due to the different gravity, fluid dynamics and mechanical forces suffered by the particles in the flowing medium, the movement forms of the mineral particles are different. Gravity coal preparation is based on the particle size. Different motion forms realize the process of mineral particle group sorting. Dense medium cyclone coal preparation is the most efficient method in gravity coal preparation, and it has a significant effect on the separation and desulfurization of difficult and extremely difficult raw coal, fine-grained coal, and high-sulfur coal. The three-product cyclone is assembled by two two-product cyclones in series, and there is no di...

Claims

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Application Information

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IPC IPC(8): B03B5/34B03B13/00
CPCB03B5/34B03B13/005
Inventor 杨硕高俊梅高鹏杨树朝李一鑫张卫军郭秀军吕秀丽蔡先锋张海涛王文生
Owner TIANDI TANGSHAN MINING TECH