PRODUCTS

The leading brand of mining machinery!

ONLINE MESSAGE

For More Information

coal gangue seperation:

Separating coal and gangue using three-dimensional laser ...

Dec 10, 2017 · Separation of coal and gangue. 3D laser scanning technology. Laser triangulation method. Laser beam segment. 1. Introduction. Gangue minerals accounts for between 15% and 20% of raw coal in China ( Qian et al., 2007 ). Indeed, as coal production has increased, so has gangue generation; by the end of 2009, the total amount of gangue produced ...

Separation of aluminum and silica from coal gangue by ...

May 01, 2015 · However, when the coal gangue particles are too small, particle agglomeration hinders the increase in surface area. In addition, liquid–solid separation becomes difficult after acid leaching. Therefore, coal gangue with a size of 74 μm was selected as the appropriate size for the acid leaching. 3.2.2. Effect of liquid–solid ratio

Coal gangue separation system based on density measurement ...

May 27, 2012 · Coal gangue separation is an essential part of the development and utilization of coal. A method of separating gangue from coal based on the density by calculating volume and weight of the ores which is measured by the designed equipment was given in this paper. The working principle of the separation method was described firstly, then the system composition of the separation system was ...

Sensors | Free Full-Text | Coal and Gangue Separating ...

In coal production, the raw coal mined directly from coal mines contains a lot of gangue, which contains a lot of heavy metals, and affects the calorific value of coal, causing serious pollution to the environment [].Therefore, it is essential to separate coal and gangue to make them play their respective roles [2,3].As an important part of the coal industry, coal gangue separation can improve ...

Coal Gangue Sorting System HXS Intelligent Dry Type Separator

Coal gangue identification flowchart. Technical features ※ Wide processing size range: It can handle 30- 600mm raw coal. The upper limit of separation is 600mm and the lower limit is 30mm. ※ High separation accuracy: The rate of gangue removing is over 95%, the rate of coal in gangue is less than 2%, and the separation effect is significant.

Separating coal and gangue using three-dimensional laser ...

Dec 10, 2017 · Separation of coal and gangue. 3D laser scanning technology. Laser triangulation method. Laser beam segment. 1. Introduction. Gangue minerals accounts for between 15% and 20% of raw coal in China ( Qian et al., 2007 ). Indeed, as coal production has increased, so has gangue generation; by the end of 2009, the total amount of gangue produced ...

Coal gangue separation system based on density measurement ...

May 27, 2012 · Coal gangue separation is an essential part of the development and utilization of coal. A method of separating gangue from coal based on the density by calculating volume and weight of the ores which is measured by the designed equipment was given in this paper. The working principle of the separation method was described firstly, then the system composition of the separation system was ...

(PDF) Separation Between Coal and Gangue Based on Infrared ...

Separation Between Coal and Gangue Based on Infrared Radiation and Visual Extraction of the YCbCr Color Space.pdf. Received February 29, 2020, accepted March 12, 2020, date of publication March 17 ...

Nondestructive Identification of Coal and Gangue via Near ...

Apr 16, 2020 · Coal-gangue separation is an essential step in the coal preparation process. However, existing manual selection and mechanical separation methods require a large amount of labor, consume too much water, and involve health hazards. In this article, we solve this problem based on the near-infrared spectroscopy (NIRS) technique in tandem with improved broad learning. First, to remove

Mineral phase transformation in coal gangue by high ...

If the silica-aluminum separation effect of coal gangue can be improved, alkali method is considered to be a more effective method for coal gangue utilization. The phase transformation and separation of alumina-silica minerals in coal gangue are studied in this paper to improve the utilization rate of coal gangue.

Study on Crushing and Separation of Coal and Gangue ...

Therefore, the selective crushing and separation of coal and gangue was preliminarily tested through the testing machine so as to obtain the selective crushing pressure distribution curves of coal and gangue, and then the curves were drawn based on its numerical distribution. The two curves drawn in this way were placed in the same coordinate ...

Coal and Gangue Underground Pneumatic Separation Effect ...

Coal and gangue underground pneumatic separation is of key importance for green mining. Two kinds of arrangement schemes for high-pressure value used in pneumatic separation system are proposed in this study. Pneumatic separation effects are examined under different arrangement of high-pressure value. Here, theoretical pneumatic separation distance formulas of mineral particles affected by ...

CiteSeerX — Separation Of Gangue From Coal Based On ...

CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): ABSTRACT: Coal gangue is residual abandoned coal, produced after the pre-processing steps of mining. It is an amalgam of several unwanted substances. It is important to separate coal gangue from lump coal before fed to thermal power plants. In this paper, investigation on the fundamental characteristics of coal images ...

Gangue - Wikipedia

Gangue minerals, once separated by mineral dressing processes of (most of) the valuable ore minerals and dumped in mine tailings may be a significant environmental impact. In particular, oxidation of pyrite, a common gangue mineral, is one of the main sources of acid mine drainage. Re-use. Minerals that were once thought of as gangue, and were dumped, may later find a commercial use.

Coal gangue separation system based on density measurement ...

【Abstract】 Coal gangue separation is an essential part of the development and utilization of coal.A method of separating gangue from coal based on the density by calculating volume and weight of the ores which is measured by the designed equipment was given in this paper.The working principle of the separation method was described firstly,then the system composition of the separation ...

Separation of gangue from coal based on histogram ...

Dec 28, 2013 · Title: Separation of gangue from coal based on histogram thresholding, Author: IJTEEE, Name: Separation of gangue from coal based on histogram thresholding, Length: 4

CA2142491C - Coal flotation process - Google Patents

A process for the flotation of particles of lignitic coal, subbituminous coal or oxidized bituminous coal contained within a slurry of coal and gangue, comprising the steps of dispersing a surfactant throughout the slurry, first conditioning the slurry such that the surfaces of the particles of coal are selectively coated by the surfactant to produce activated particles of coal, dispersing an ...

Separation Of Gangue From Coal Based On Histogram ...

Coal gangue is residual abandoned coal, produced after the pre-processing steps of mining. It is an amalgam of several unwanted substances. It is important to separate coal gangue from lump coal before fed to thermal power plants. In this paper, investigation on the fundamental characteristics of coal images and gangue images with digital image processing technology is proposed.

Coal and Coal Gangue Separation Based on Computer Vision

We consider the problem of automatically separating coal and coal gangue based on computer vision and design a coal and coal gangue separation system framework based on video. Grayscale histogram, fractal dimension and energy value are extracted as ore features. Then we design a 4-layer Levenberg Marquart BP Neural Network to implement multi-feature fusion.

Novel Methods for Separation of Gangue from Limestone and ...

Feb 26, 2016 · The last method used gray scale texture features computed on a quantized color image. Results showed that the accuracy for separation of gangue from limestone, a joint color-texture method was 98 % and for separation of gangue from coal

CiteSeerX — Separation Of Gangue From Coal Based On ...

CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): ABSTRACT: Coal gangue is residual abandoned coal, produced after the pre-processing steps of mining. It is an amalgam of several unwanted substances. It is important to separate coal gangue from lump coal before fed to thermal power plants. In this paper, investigation on the fundamental characteristics of coal images ...

PROCESS AND SYSTEM FOR DRY COAL SEPARATION BY COAL GANGUE ...

The process for coal separation includes two steps of size grading and oversize raw coal separating. A size range is obtained through size grading, then the obtained raw coal is separated by a sensor system, and coal briquettes with high impurity contents are blown into an impurity chamber through high-speed compressed air, thus improving the separating accuracy and efficiency.

Extraction of Coal and Gangue Geometric Features with ...

coal–gangue separation system with computer vision, in which industry cameras and computers are used to identify whether the object is coal or gangue through the pattern recognition technology. Ma et al. proposed the coal gangue on-line recognition and automation selection system with digital image processing technology [4].

Separation of gangue from coal based on histogram ...

Dec 28, 2013 · Title: Separation of gangue from coal based on histogram thresholding, Author: IJTEEE, Name: Separation of gangue from coal based on histogram thresholding, Length: 4

Impact-Crush Separation Characteristics of Coal and Gangue ...

The equation of the impact-crush separation characteristics of coal and gangue was obtained by means of a regression analysis of the experiment results. The results indicated that the crush-ratio difference of coal and gangue had a linear relationship with the hardness and impact velocity of coal and gangue.

Coal and Coal Gangue Separation Based on Computer Vision ...

Coal and Coal Gangue Separation Based on Computer Vision. Share on. Authors: Wenhui Li. View Profile, Ying Wang. View Profile, Bo Fu ...

Separation of gangue from coal based on histogram ...

Dec 28, 2013 · Title: Separation of gangue from coal based on histogram thresholding, Author: IJTEEE, Name: Separation of gangue from coal based on histogram thresholding, Length: 4 pages, Page: 2, Published ...

Coal Gangue Sorting System—HXS Intelligent Dry Type ...

Coal gangue identification flowchart. Technical features ※ Wide processing size range: It can handle 30- 600mm raw coal. The upper limit of separation is 600mm and the lower limit is 30mm. ※ High separation accuracy: The rate of gangue removing is over 95%, the rate of coal in gangue is less than 2%, and the separation effect is significant.

Automatic Separation System of Coal Gangue Based on DSP ...

Coal gangue could been separated from the lump coal. To improve operation speed, the high performance microcontroller(DSP) was used as the core processor of system. It can achieve the real-time automatic separation of coal gangue. It provides a new technology for separation of coal gangue.

Integrated green mining technology of “coal mining-gangue ...

Aug 24, 2021 · The work developed the integrated green mining technology of coal mining, gangue washing-backfilling, strata control, and system monitoring. First, a production system was designed for surface-underground transportation of backfilling materials, underground gangue separation, multiple-seam combined backfilling, and mining.

Coal Gangue Crushing and Screening - JXSC Mine

The separation effect of coal gangue with high calorific value is better. New type coal gangue crusher. The upper part of the new coal gangue crusher is an umbrella-like structure, and the top part is provided with feeding holes. When the material enters the equipment, the gangue will be evenly dispersed by the distributing device, and the coal ...

Visual Positioning and Recognition of Gangues Based on ...

Jul 05, 2019 · Gangue separation is necessary before raw coal is loaded for transportation. Figure 2 describes the structure of a typical gangue separation line. As shown in the figure, the raw coal needs to pass through a vibration sieve to filter out small coal blocks.

On the Equivalent Position Workspace for a Coal Gangue ...

Coal gangue separation is of key important for green mining. Robotic separation of coal and gangue based on the machine vision system, which is called a coal gangue picking robot with a gangue grab driven by four cables, is developed in this study. Here, this paper focuses on the equivalent position workspace, within which a coal gangue picking ...