A5040140244- Coal Properties and Utilization
- Geoscience and Mining Technology
- Combustion and Detonation Processes
- Fire dynamics and safety research
- Geomechanics and Mining Engineering
- Safety and Risk Management
- Hydrocarbon exploration and reservoir analysis
- Flame retardant materials and properties
- Rock Mechanics and Modeling
- Distributed Control Multi-Agent Systems
- Adaptive Control of Nonlinear Systems
- Environmental Quality and Pollution
- Aerosol Filtration and Electrostatic Precipitation
- Industrial Technology and Control Systems
- Smart Materials for Construction
- Analysis of environmental and stochastic processes
- Combustion and flame dynamics
- Polysaccharides Composition and Applications
- Plant Surface Properties and Treatments
- Coal and Coke Industries Research
- Engineering Structural Analysis Methods
- Architecture, Modernity, and Design
- Micro and Nano Robotics
- Plant Ecology and Soil Science
- Control and Dynamics of Mobile Robots
Shandong University of Science and Technology
2007-2025
Harbin Institute of Technology
1999-2024
Inner Mongolia Autonomous Region Hospital of Traditional Chinese Medicine
2024
Spontaneous combustion of residual coal in the goaf is one main disasters mines. Understanding law spontaneous can effectively prevent mine fires. This paper establishes a dynamic evolution model overburden caving and porosity using PFC numerical simulation software, compares analyzes changes zone at advancing distances 50m, 70m, 100m. The results show that when working face advances 100m, decreases from 0-0.6 to 0.16-0.3. range on return air side expands 42m-50m 39m-61m, inlet side, it 0...
Affected by the occurrence conditions, inclination angle of goaf and ground temperature change caving structure rise environment goaf, which in turn affects distribution range spontaneous combustion zone goaf. During process inert gas injection, cooling diffusion determines its inerting effect. In this paper, temperature-programmed experiment was used to obtain oxygen consumption rate coal at different temperatures. Fluent simulation showed that when no injected, scope on inlet side moved...
In order to study heat release rate and flue gas generation during residual coal in goaf combustion, a cone calorimeter was used research on combustion characteristics of bituminous under different radiation flux conditions. A novel fire FOAM solver for is developed, numerically simulated by varying the atmosphere, compared with above experimental results. The results showed that increase flux, shorter time reach peak rate, greater maximum rate. When does not enter ignition stage, CO...
During upward mining in coal mines, the gas lower goaf can flow to upper along through fractures between seams, which affects distribution of field such as oxygen concentration and goaf. This paper explores changes regularity self-ignition zone region coupled with explosion range by comparing it single-seam mining, taking a mine Shanxi Province an example. In this study, PFC2D software is used simulate voidage ratio first fissure close seams during up-mining. Then laws zones CH4 ranges under...
A high-order bilateral consensus robot formation control protocol for multi-agent systems is proposed in this paper. Considering the relationship between state of information exchange topology and derivatives, a third-order consistency presented extended it to higher order protocol. First, sufficient conditions system are given achieve protocol, system’s asymptotical stability also achieved by adjusting feedback gain parameters. Then, further studying cohesive each variable gauge...
In the process of coal formation at deep seam, quality changes by geological environment. Under influence high-temperature and surrounding heat storage conditions, combined capacity oxygen is enhanced, risk spontaneous combustion enhanced. Based on law in thermal environment, industrial analysis correlation samples with different buried depth same seam were carried out. The low-medium temperature oxidation laws studied infrared spectroscopy (IR) thermogravimetric analysis. Industrial showed...
To investigate the influence of basic characteristics oil shale dust on wet removal, shales (Longkou Y1, Y2S2, and Y2S1 Fushun shale) with different contents, brown coal (M1), bituminous (M) were selected from a typical mining area in China to test their physiochemical parameters. Their proximate component, chemical structures, surface morphology, mineral contents determined. The sedimentation experiments implemented using three anionic surfactants (AOS, SDS, SDBS) nonionic surfactant...
Mine water cannot be discharged until it has been treated, which increases the cost of mining and causes environmental damage. This paper attempted to use sulfate mine as a flame retardant material for treatment coal spontaneous combustion (CSC) in underground mines. The temperature-programed experimental device gas chromatograph were used simulate low-temperature oxidation process coal. Infrared spectroscopy was study influence inhibition mechanism chloride inhibitor on active functional...
Coal spontaneous combustion (CSC) brings great danger to mine safety. Although traditional colloidal fire-fighting materials can reside at high fire source points, their permeability and fluidity are poor, such focus on water absorption, but pay less attention retention resistance, which makes effect not good. This paper proposed a new type of mining prevention colloid material (CPS-α), had good solid gel formation, viscosity, fluidity, blocking properties compensate for colloids'...
Influenced by the complex environment and nature of process materials in goaf, prevention control spontaneous combustion coal (CSC) deep part goaf were facing many difficulties. To investigate performance ultrasonic atomized aerosols, a series atomization experiments conducted using self-developed device. The main conclusions are as follows: under same conditions, particle sizes several inhibitors (except PAS-W) concentrated <8 μm range, with content more than 88%, indicating that aerosol...
This paper proposes an efficient penalty-like neurodynamic approach modeled as a second-order multi-agent system under external disturbances to investigate the distributed optimal allocation problems. The sliding mode control technology is integrated into for suppressing influence of unknown disturbance on system's stability within fixed time. Then, based finite-time tracking technique, resource constraints are handled by using penalty parameter approach, and their global information...
Soil samples of 0-15cm from 9 sampling sites including different functional zones and greening types Shanghai, China were collected analyzed. The results showed the average concentration Cu, Pb, Zn Cd in soil shanghai up to 42.33,169.58,49.06, 0.2460mg/kg, respectively, which much higher than their natural background values. Among types, school regions shrub type displayed highest metal concentrations. 0-5cm layer was other layers. Potential ecological risk indices (RI) indicated that...