coal gangue coke

The coal gangue in China is the core field of bulk solid waste comprehensive utilization due to its massive stock and emission, high concentration of output, small proportion of high-value-added utilization, and outstanding environmental impact. Hence, the prospect of resource utilization of coal gangue is broad. The existing disposal …

Abstract. This work presents the combustion characteristics of coal, petroleum coke (PC), rice straw (RS), mustard cake (MC), and their blends to assess the applicability of blended fuel for thermal power generation. Characterization results show that PC has the highest gross calorific value (GCV) (35,990 kJ/kg) to improve the overall …

Abstract. The experiments selected Wang Taipu gangue as raw materials and adopted single factor experimental method to study the leaching of aluminum oxide from gangue by using hydrochloric acid ...

petroleum coke and coal gangue is the best when the mixture ratio of petroleum coke and coal gangue is 4:1 in air atmosphere and the flow rate is 30ml/min, and the combustion characteristics of petroleum coke and coal gangue are better than that of single sample. The burning effect of the mixed fuel is the best.

Coal gangue is one of the largest mine solid wastes in China, and its discharge and stockpiling have caused resource waste, environmental pollution and …

Semantic Scholar extracted view of "Coal gangue detection and recognition algorithm based on deformable convolution YOLOv3" by De-yong Li et al. ... Particle size distribution is an important parameter of metallurgical coke for use in blast furnaces. It is usually analyzed by traditional sieving methods, which cause delays and require ...

BC - Bituminous coal; CG - coal gangue; CP - coke powder; CG + BC - mixture of coal gangue and bituminous coal; CG + CP - The mixture of coal gangue and coke powder. The first weight loss peak of CG is in the temperature range of 300–600 °C. The weight loss ratio of CG is 13.91%, and the reaction rate of devolatilization reaches its …

1. Introduction. As a significant energy source in the world, coal accounting for more than 27% of the primary energy structure [1], [2], and is widely employed in daily production and life.Gangue is a low-carbon solid waste produced during coal mining and washing, accounting for about 10%−15% of the total coal output [3].The cumulative …

The ratio of gangue slurry is coal gangue to mine water = 7:3, and the mass fraction of gangue slurry is 70%. The grouting pump used in this experiment is a plunger pump, with a maximum ...

petroleum coke and coal gangue is the best when the mixture ratio of petroleum coke and coal gangue is 4:1 in air atmosphere and the flow rate is 30ml/min, …

The capacity of coke deoxygenation was higher than that of coal gangue deoxygenation at a given temperature, but methane loss increased drastically, mainly …

Abstract. Among coal mining-related wastes, coal gangue (CG) is the heterogeneous waste generated during the mineral processing or coal washing phase of …

Guo X, Ren J, Xie C, Lin J, Li Z (2015) A comparison study on the deoxygenation of coal mine methane over coal gangue and coke under microwave heating conditions. Energy Convers Manag 100:45–55. ... Qin H (2005) Preparation of sodium sulfide from reduction of sodium sulfate by coke oven coal gas. J Inner Mongolia …

Coal Gangue (CG) is a bulk solid waste yielded from coal washing, coal mining, and other coal industries (Li et al., 2020a; Wang et al., 2021). ... 2021). Coincidentally, huge amount of solid wastes (e.g., oil shale semi-coke, coal gangue) are also produced in mining and industrial activities (Trikkel et al., 2008; Zhao et al., 2022a). …

Top coal caving is a process for the rational extraction of large amounts of coal resources. However, this process readily causes release of excessive amounts of …

The aim of this study was to prepare a Si-K-based amendment by coal gangue and plant ash and clarify its feasibility for improving the growth of maize plants in saline soils.The Si-K-based amendment was prepared by mixing the coal gangue and plant ash and calcining at 500–900 °C for 0.5–2.5 h. A pot experiment was carried out to …

Ashfaq, M., and A. A. B. Moghal. 2021. "Influence of lime and coal gangue on the CBR behavior of expansive soil." In Advanced geotechnical and structural engineering in the design and performance of sustainable civil infrastructures. sustainable civil infrastructures, edited by J. Neves, B. Zhu, P. Rahardjo, 102–113. Cham, Switzerland ...

During the extraction and processing of coal, a large amount of solid waste, collectively known as gangue, is produced. This gangue has a low carbon content but a high ash content, accounting for approximately 15 to 20% of the total coal yield. Before coal is used, coal and gangue must be effectively separated to reduce the gangue content in …

Coal gangue is a rock mixed with organic and inorganic compounds co-deposited with coal during coal formation. Usually in a thin layer and in the coal seam or in the top and bottom of the coal seam, gangue is typical solid waste discharged when coal is excavated and washed in the production. In China, the total of accumulative stockpile of …

For coal gangue detection, this paper proposes a stride-and-transpose-based progressive generative adversarial network (STP-GAN), which can achieve fast training on a few samples and generate high-resolution images in size of 10242. We employ stride convolutions, up-sampling, and average pooling to construct the model …

Experiments show that the combustion performance of petroleum coke and coal gangue is the best when the mixture ratio of petroleum coke and coal gangue is 4:1 in air atmosphere and the flow rate is 30ml/min, and the combustion characteristics of petroleum coke and coal gangue are better than that of single sample. The burning …

1. Introduction. Coal gangue is one of the largest industrial residues in China that is discharged during the processing and utilization of coal (Gu, 1997, Liu and Liu, 2010).With continuous growth of coal mining and coal cleaning, a large amount of coal gangue are produced, which contain sulfide minerals, alumino-silicates minerals, other …

Double roll crusher for cement, coke, coal gangue Application of roller crusher The roll crusher is widely used for crushing high hard and medium hard materials in such industrial departments such as metallurgy, building material and refractory. It has the features of low noise, little powder dust, reliable performance and convenient maintenance.

The specific heat capacity (C p), thermal conductivity (λ), and thermal diffusion coefficient (D) of coal gangue (CG) are the main factors that affect the self-ignition potential for heat transferring from burning center to the ground surface. In this paper, the thermophysical properties of CG were investigated by transient plane source method.

1.2. Source and distribution of CG in China. CG is a kind of black gray shale rock produced in the process of coal production. China is the world's largest coal producer (Munir et al., 2020) and also the largest coal consumer.Coal provides about 62% of China's energy demand (Mita et al., 2015).In the process of sorting and processing, the production of CG …

The co-pyrolysis of corncob and coal gangue in a fiber tube resistance furnace was carried out by Liu (2017). The ratios of coal gangue to corncob were 20% and 40%, the temperature was over 200 °C, and the co-pyrolysis of corncob and coal gangue had a certain synergistic effect.

Model: MJ-DL-5 Introduction This tester is used to determine the sulfur content in combustibles such as coal, coke and gangue. It is the main instrument in the laboratories of coal, electric power, chemical industry, metallurgy and other departments. Features with function of split sulfur. Nice appearance With friendly human-machine interface, easy …

The chemistry, mineralogy, morphology, and particle size distribution were investigated in fly ashes from the burning of Datong (ShanXi, China) bituminous coal and the cofiring of Mideast high-sulfur petroleum coke (PC) with 30:70 (cal %) and 50:50 (cal %) blends of Datong bituminous coal in two commercial CFBC boilers. With the exception of CaO, the …

Co-combustion behavior of coal gangue, coal and the blends Co-combustion characteristics. The TG, DTG and DSC profiles of coal gangue, coal and their blends under temperature programmed combustion obtained at heating rate of 10 °C min −1 are shown in Fig. 3.The influence of heating rates on TG, DTG and DSC curves is shown …

The deoxygenation reaction of CMM with coal gangue in a continuous-flow system (Fig. 1) with a fixed-bed reactor at atmospheric pressure was investigated.The reactor was constructed from a stainless steel tube having an inner diameter of 8 mm and a length of 60 cm.About 4.0 g of coal gangue sample was preloaded in the tubular …

gangue is now mixed with petroleum coke.Coal gangue is industri al solid wa ste that is washed out during coal washing [6-7], which has low calorific value, low v olatile content and high ash content,

The coal gangue and and dyeing sludge were thoroughly combined in a mixer for 2 h, after which approximately 30mass% water was added and the mixture was stirred into a mud ball using a glass rod. The raw-meal ceramsite size was adjusted to 5–6 mm using a granulator. After drying the raw meal ball for 24 h at 105 °C, it was …

Tailings are the often-toxic residue left over from the process of separating coal from gangue, or economically unimportant minerals. Toxic coal tailings can pollute local water supplies. ... about 45 percent of the nation's electricity is driven by coal. Coke Coal plays a vital role in the steel industry. In order to produce steel, iron ore ...

Coal gangue is one of the largest mine solid wastes in China, and its discharge and stockpiling have caused resource waste, environmental pollution and other problems. Starting from the resource characteristics of coal gangue, this paper systematically discusses the ways and research status of coal gangue resource …