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Mineral dissociation method based on fracture characteristic criteria

A dissociation and mineral technology, applied in the field of mineral dissociation based on the fracture characteristic criterion, can solve the problems of long measurement time, high cost and low accuracy of mineral microscopic image determination

Active Publication Date: 2020-08-25
CHINA UNIV OF MINING & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of the above analysis, the present invention aims to provide a mineral dissociation method based on the fracture characteristic criterion to solve the problems of low accuracy of the existing mineral separation measurement method, high cost and long measurement time of the mineral microscopic image measurement method

Method used

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  • Mineral dissociation method based on fracture characteristic criteria
  • Mineral dissociation method based on fracture characteristic criteria
  • Mineral dissociation method based on fracture characteristic criteria

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Embodiment 1

[0080] A specific embodiment of the present invention discloses a mineral dissociation system based on fracture characteristic criterion, such as figure 1 As shown, it includes integrated pre-screening system 1, crushing system 2, grinding and dissociation system 3, grading and screening system 4, camera shooting system 5, image processing and computing system 6 and ore particle collection system 7.

[0081] The pre-screening system 1 is used for the pre-screening of ore. The large ore on the screen in the pre-screening system 1 is transported to the crushing system 2 by the belt conveyor for crushing. The products under the screen and the crushed ore enter the mill through the pipeline chute. The ore dissociation system 3 is used for grinding and dissociation.

[0082] The crushing system 2 is used for crushing bulk ore, and the main body of the crushing system 2 is one of jaw crusher, cone crusher, roll crusher or impact crusher, preferably jaw crusher.

[0083] The grindin...

Embodiment 2

[0092] Another specific embodiment of the present invention discloses a mineral dissociation method based on the fracture characteristic criterion, using the mineral dissociation system based on the fracture characteristic criterion in Example 1, the dissociation operation process is as follows figure 2 shown, including the following steps:

[0093] Step 1: Use the crushing system 2 to crush and grind the ore particles, and send the crushed and ground ore particles to the grinding and dissociation system 3 for grinding and dissociation.

[0094] Step 2: Send the ore particles that have been ground and dissociated by the grinding and dissociation system 3 into the classification and screening system 4, and the classification and screening system 4 performs classification and screening operations on the incoming ore particles, and removes the ore particles smaller than the size of the sieve holes. The particles are sent to the camera shooting system 5, and the ore particles lar...

Embodiment 3

[0108] Another specific embodiment of the present invention discloses the specific process of obtaining the surface dissociation degree of ore particles by the image processing and computing system 6 in step 4 of the mineral dissociation method based on the fracture characteristic criterion in embodiment 2, and specifically discloses a A method for obtaining mineral dissociation degree based on particle fracture characteristics, the process is as follows image 3 As shown, the mineral dissociation degree acquisition method comprises the following steps:

[0109] Step 1: The image processing and calculation system 6 obtains the particle volume fractal dimension based on the ore particle fracture morphology image information preprocessed by the camera shooting system 5, and calculates the cumulative yield distribution function of mineral particles under the sieve based on the particle volume fractal dimension.

[0110] Step 1.1: The image processing and computing system 6 is bas...

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Abstract

The invention relates to a mineral dissociation method based on fracture characteristic criteria, belongs to the technical field of mineral separation, and solves the problems of low accuracy of an existing mineral separation determination method, high cost of a mineral microscopic image determination method and long determination time. The mineral dissociation method comprises the following stepsthat ore particles are crushed and ground through a crushing system, and the crushed and ground ore particles are fed into an ore grinding dissociation system to be ground and dissociated; the ore particles ground and dissociated by the ore grinding dissociation system are fed into a grading screening system to be subjected to grading screening operation, and the ore particles smaller than screenholes in size are fed into a camera shooting system; the camera shooting system is used for carrying out image acquisition on fracture morphology characteristics of the fed ore particles and transmitting fracture morphology pictures of the ore particles to the image processing and calculating system; and the image processing and calculating system acquires the surface dissociation degree of the ore particles. The method can quickly and accurately obtain the dissociation degree of the ore particles, and is convenient to operate, low in cost and wide in application range.

Description

technical field [0001] The invention relates to the technical field of mineral separation, in particular to a mineral dissociation method based on fracture characteristic criterion. Background technique [0002] With the continuous advancement of the global economy and technology, the demand for mineral resources in the industrial field is gradually increasing, resulting in an increasing shortage of high-grade, easy-to-sort high-quality mineral resources, and the development of a large number of low-quality mineral resources with high joint biomass content is particularly important. The dissociation degree and efficiency of minerals are the prerequisites for determining the precise separation of low-quality mineral resources, and are also the key to improving the recovery rate of concentrate products. The dissociation of minerals usually includes two processes of crushing and grinding (collectively referred to as crushing). It is required that the particle size of the crushe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06T7/48B02C21/00G06Q10/06
CPCG06T7/48B02C21/00G06Q10/06312G06V20/00G06V2201/06
Inventor 曹亦俊邢耀文桂夏辉丁世豪
Owner CHINA UNIV OF MINING & TECH
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