Results 71 to 80 of about 495 (176)

Accurate identification method of coal and gangue based on geometric feature constraints by DE-XRT

Meitan kexue jishu
The dual energy X-ray transmission identification of coal gangue still faces challenges in thickness, hardening, afterglow, and fan-shaped effects, among which the parameters for 5-150 mm wide thickness coal gangue separation fluctuate significantly and ...
Lei HE, Yongcun GUO, Ya ZHI, Shuang WANG, Deyong LI, Kun HU, Gang CHENG   +6 more
doaj   +1 more source

Modeling the Thermal Properties of Hydrogen‐Based Direct Reduced Iron Using Computational Thermodynamics and Machine Learning

steel research international, Volume 97, Issue 7, Page 3851-3869, July 2026.
Hydrogen‐based direct reduced iron (H‐DRI) melts differently from scrap and carbon‐bearing DRI. This work combines differential scanning calorimetry experiments, FactSage thermodynamics, and simple composition‐based regression to predict solidus, liquidus, heat capacity, and enthalpy for H‐DRI.
Ankur Agnihotri, Petri Sulasalmi, Pasquale Cavaliere, Ville‐Valtteri Visuri   +3 more
wiley   +1 more source

Study on Coal Gangue Identification Based on Vibration and Its Adaptability to Coal-Caving Process Parameters

, 2023
The broken top coal and gangue in the fully mechanized cave mining will be released from the rear of the hydraulic support in the form of bulk. In this process, the medium properties through the coal opening can be judged by monitoring the vibration ...
Jiantao Wang, Zhaosheng Meng, Zhenguo Lu, Zhaoji Li, Dejian Ma, Lirong Wan   +5 more
core   +1 more source

Toward Carbon Neutrality: Pathways and Challenges in Green Steel Production

cScience, Volume 2, Issue 2, June 2026.
ABSTRACT Steel, a cornerstone of modern civilization and economic growth, has experienced exponential production growth, resulting in substantial carbon emissions owing to reliance on fossil‐based reducing agents and fuels. Although conventional steelmaking methods have improved, achieving the climate targets outlined in the Paris Agreement requires ...
Xianfeng Hu, Lena Sundqvist Ökvist, Guozhu Ye, Johan Björkvall   +3 more
wiley   +1 more source

Design and application of coal gangue sorting system based on deep learning. [PDF]

Sci Rep
With the advancement of science and technology, coal-washing plants are transitioning to intelligent, information-based, and professional sorting systems.
Zhang K, Wang Z, Zhang Z, Shi Z, Qi Y, Du M, Chen Y, Liu T, Chen Y, Yin Z.   +9 more
europepmc   +2 more sources

Tailoring of Waste‐Derived CO2 Adsorbents From the Perspective of Apparent and Intrinsic Property Regulation

cScience, Volume 2, Issue 2, June 2026.
ABSTRACT The conversion of waste materials into solid CO2 adsorbents is a promising strategy for carbon capture and waste management. In this review, we discuss recent advances in the preparation and modification of waste‐derived CO2 adsorbents, including carbon‐based materials, zeolites, metal–organic frameworks, layered double hydroxides, CaO, and ...
Han Zhang, Ziyan Yang, Lina Liu, Zhikun Zhang   +3 more
wiley   +1 more source

Image Processing and Recognition System Based on DaVinci Technology for Coal and Gangue

, 2011
In this paper, an image processing and recognition system of the coal and gangue has been studied. We adopt digital video processing technology of high performance---DaVinci technology to design the system, which is made up by the chip DM6437 and some ...
Ming Feng Sun, Yi Ding Zhao
core   +1 more source

Improved YOLOv7 Network Model for Gangue Selection Robot for Gangue and Foreign Matter Detection in Coal

, 2023
Coal production often involves a substantial presence of gangue and foreign matter, which not only impacts the thermal properties of coal and but also leads to damage to transportation equipment.
Changyun Miao, Dengjie Yang, Yao Zheng, Yimin Wang, Xianguo Li, Yi Liu   +5 more
core   +1 more source

Stress Redistribution Mechanisms and Subsidence Control of Fluidized Gangue Backfilling in Underground Coal Mining: Integrated Experimental and Numerical Investigation

Energy Science &Engineering, Volume 14, Issue 5, Page 2476-2498, May 2026.
Fluidized gangue backfilling controls mining subsidence through stress redistribution in composite backfill‐pillar systems, reducing surface settlement and stress concentrations. Multi‐scale experimental and numerical analysis provides quantitative design parameters for optimizing ground control in sustainable underground coal mining operations ...
Weilong Zhang, Jie Zhang, Yuanzhen Zhang, Wenjing Liu, Liang Li, Deyi Nan, Guannan Zhao, Chen Yang, Haiqing Bian, Hua Shao, Xiao Zuo, Changtai Zhou   +11 more
wiley   +1 more source

Failure Characteristic and Stability Control of Gob‐Side Entry Retention With Narrow Roadside Filling Wall

Energy Science &Engineering, Volume 14, Issue 4, Page 2137-2152, April 2026.
A novel collaborative control technology of gob‐side entry retention with narrow roadside filling wall is proposed, wherein anchoring end of anchor cable must penetrate the boundary line of stress peak (plastic zone). ABSTRACT Gob‐side entry retention represents a major technological innovation in the history of coal mining, offering numerous ...
Wenxu Liang, Wei Fu, Ziwen Liu
wiley   +1 more source