Coal Gangue Keyword

Coal Gangue Keyword

Papers by Keyword: Coal Gangue - Scientific.Net

Papers by Keyword: Coal Gangue ... Abstract: Coal gangue is a byproduct of mining process, filling the gangue in the road embankment can reduce the pollution caused by the gangue accumulation. Because the formation and type of rock is different, the performance of gangue is different. In this paper, the main types of gangue of Handan & Xingtai ...

Papers by Keyword: Coal Gangue - Scientific.Net

Abstract: In-situ growth of mullite whisker from waste coal gangue and different aluminium source mixtures by dry pressing were investigated aiming at the preparation of mullite - corundum lightweight refractory by controlling mullite whisker precursor pseudo particle size and quantity in corundum matrix.

Gangue - Wikipedia

This, mixed with the 60 million tons of coal mud also produced, could be used for power generation; and the coal mining gangue could be combined with coal ash to produce building materials. The estimated cost of such projects would be up to 4 billion yuan, but would be expected to save just over 4 million tons of standard coal per year.

Papers by Keyword: Gangue - scientific.net

Best thermal activation process conditions of Jiyuan gangue is calcined at 800°C for 2h. Adding 40% of the heat-activated coal gangue Activated at this condition to cement, the compressive strength than the same dosage as is the compressive strength of coal gangue increased 106%.

Release characteristics of heavy metals from coal gangue ...

Keywords: Coal gangue, Heavy metal, Leaching simulation, Release rate 1. INTRODUCTION Coal gangue is an inevitable byproduct in the process of coal mining. With the development of the coal mining industry in recent years, the heavy-metal pollution from the coal gangue is paid more and more attention (Zhang et al., 2009; Sun, 2005; Sun et al ...

Improving strength of calcinated coal gangue geopolymer ...

Mar 30, 2018 · Keywords. Coal gangue. Mortar. GBFS. Slaked lime. Geopolymer. Calcium content. 1. Introduction. Coal gangue is a type of solid waste, which is produced in the process of coal mining, washing, and processing, accounting for 10%–25% of the total amount of coal. It is estimated that the annual production of coal gangue wastes is about 0.75 ...

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

Dec 10, 2017 · Separating coal and gangue using three-dimensional laser scanning. Author links open overlay panel Weidong Wang Chen Zhang. ... A method for distinguishing gangue from coal was presented, and a photoelectric identification system was designed. ... Keywords. Separation of coal and gangue.

Image Recognition of Coal and Coal Gangue Using a ...

Recognizing and distinguishing coal and gangue are essential in engineering, such as in coal-fired power plants. This stone employed a convolutional neural network (CNN) to recognize coal and gangue images and help segregate coal and gangue. A typical workflow for CNN image recognition is presented as well as a strategy for updating the model parameters.

Co-combustion of municipal solid waste and coal gangue in ...

Keywords Municipal solid waste Coal gangue Co-combustion Circulating fluidized bed 1 Introduction From 2006 to 2016, the amount of municipal solid waste (MSW) in China increases from 148 to 204 million tons (National Bureau of Statistics of China 2017). MSW dis-

Properties of coal gangue-Portland cement mixture with ...

Jun 01, 2019 · The annual emission of coal gangue in China has reached around 280 million tons in recent years. Moreover, the coal gangue stockpile is increasing at a rate of 0.3 billion tons per year. It was reported that the amount of coal gangue accumulated in China has already reached 4.5 billion tons, which occupies more than 15,000 km 2 of land , .

Comprehensive utilization and environmental risks of coal ...

The amount of coal gangue, a by-product of coal mining and washing, is rapidly increasing with the growing trend of energy consumption. The accumulated coal gangue without appropriate utilization has resulted in a squander of resources, waste disposal and environmental pollution issues.

Materials | Free Full-Text | Evaluation of Mechanical ...

Coal gangue, a solid waste produced in coal production, had caused serious environmental pollution due to accumulation on dumps. Embankment filling can solve the problem while significantly consuming the amount of coal waste for mining. The main purpose of this study is to investigate the mechanical properties and microscopic structure of coal gangue when it is subjected to erosion from water ...

Image Recognition of Coal and Coal Gangue Using a ...

energies Article Image Recognition of Coal and Coal Gangue Using a Convolutional Neural Network and Transfer Learning Yuanyuan Pu 1,2,*, Derek B. Apel 2,* , Alicja Szmigiel 2 and Jie Chen 1,* 1 State Key Laboratory of Coal Mine Disaster Dynamics and Control, …

Enhanced mechanical properties and durability of coal ...

The results show that coal gangue can significantly reinforce the cement-soil mixture well by improving mechanical properties and durability. The conclusions can be drawn as follows: (1) Incorporation of coal gangue can effectively improve the mechanical properties of cement-soil mixture.

Recognition of Coal and Gangue Based on X-Ray

In this paper,a recognition method of coal and gangue based on x-ray is studied. With the different density , the coal and gangue on a belt can be detected by x-ray. After penetrated by x-ray, with the acquisition of ray signal and image analysis, the gangue can be accurately distinguished from the coal. As a result, the quality of coal is improved.

(PDF) Identification of Coal and Gangue by Feed-forward ...

Identification of Coal and Gangue by Feed-forward Neural Network Based on Data Analysis Article (PDF Available) in International Journal of Coal Preparation and Utilization · February 2017 with ...

Papers by Keyword: Coal Enterprise - Scientific.Net

Papers by Keyword: Coal Enterprise. 1; 2 > ... In order to produce the coal gangue glued stone, we heated the coal gangue in the rotary kiln, and the flue gas waste heat could be recovered and used for thermal power generation, and the power is back to the circular eco-industrial park. The mining wastewater could be used for power generation ...

Design of Test Bed for Identifying Coal and Gangue

of coal and gangue in coal mining site. The test-bed mainly includes Gear-rack lifting mechanism, punching mechanism, and vibration mechanism. The transmission part of the lifting mechanism is analyzed and checked by finite element analysis software to verify the reliability of the design. Best results. Keywords

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