Mine Environmental Protection, Waste Disposal And Resourceful Utilization

Based on the basic theoretical research on environmental protection and the industrial transformation of related technologies, it focuses on scientific research, technical consulting, environmental protection project EPC general contracting, environmental protection engineering equipment R&D and manufacturing, environmental protection facility operation, and environmental stewardship services, mining geology, and ecological environment management projects. It mainly provides integrated environmental protection services for construction projects from the early stage of approval, construction period, and operation period.

1. Fine exploration and full-encirclement treatment technology for high-temperature areas in coal gangue mountains

A three-dimensional fine detection system has been constructed, three-dimensional full-process monitoring has been carried out, and a full-encirclement management model has been realized. Through physical fields, chemical fields, and temperature fields combined with drilling technology, a three-dimensional exploration of the spatial existence status and oxygen supply channels in the high-temperature zone of the Coal Gangue Mountain was carried out. The grouting effect is monitored throughout the whole process through a three-dimensional visual display. Through the one-way grouting pipe, the customized slurry is continuously injected under pressure in sections, so that the slurry can fill the combustion space in the smoldering zone and the gaps between the unburned coal gangue, achieving the effects of cooling, squeezing out the air in the gaps and coating the coal gangue.

Comparison of the Effects Before and After Treatment of a Coal Mine Gangue Mountain in Northern Shaanxi

2. Precise curtain sealing and fire prevention and extinguishing technology for lateral air leakage disturbance caused by layered mining of thick coal seams

Utilize in-hole temperature monitoring and gas analysis to achieve continuous tracking of high-temperature areas. Inject the paste first to fill the larger space, and then use the process of segmented, multiple times, low-pressure slow injection to fill the internal gaps after the holes are solidified and scanned. Control the limited grout volume within a reasonable grouting range, quickly form an effective curtain in a short time, extinguish the fire, and achieve the effect of blocking wind leakage and preventing fire extinguishing. It solves the problems of traditional conventional grouting such as difficulty in controlling the range, poor accuracy and effect of grouting, and unsatisfactory wind-blocking effect.

Demonstration of the Effect of Blocking Air Leakage Before and After Treatment of Adjacent Working Faces in a Coal Mine in Northern Shaanxi

3. General contracting of water treatment projects

Core technology: complete sets of water treatment equipment and technology

3.1 Mine water pretreatment system

Inclined plate sedimentation, ultramagnetic, heavy medium rapid sedimentation, high-efficiency cyclone, filter

3.2 Mine water film treatment system

Microfiltration, ultrafiltration, reverse osmosis

3.3 Mine water concentration and crystallization system

Nanofiltration, high-pressure reverse osmosis, evaporation and crystallization

3.4 Special treatment of mine water

Chemical hardness removal, fluorine removal, ammonia nitrogen removal

3.5 Domestic sewage treatment

Biochemical treatment, MBR device

4. General contracting of flue gas/exhaust gas treatment projects

Core technology: flue gas/exhaust gas treatment complete equipment and technology

4.1 Flue gas dust removal system

Bag dust collector, electrostatic precipitator, and wet electrostatic precipitator

4.2 Flue gas desulfurization system

Wet desulfurization (limestone-gypsum method/double alkali method/magnesium oxide method), dry desulfurization

4.3 Flue gas denitrification system

SNCR, SCR, combined denitrification, oxidation absorption, and simultaneous desulfurization and denitrification

4.4 Odor gas treatment system

Low-concentration organic waste gas, odorous gas low-temperature plasma, photocatalysis, activated carbon adsorption, and combined solutions

5. Professional operation and maintenance of environmental protection facilities

Core technologies: professional environmental protection operation and maintenance team and digital management and control platform, independent intellectual property digital management and control platform, and mobile management system

6. Ecological environment restoration and management project in coal mining areas

Through the investigation and experimental analysis of disasters such as gangue mountains, subsidence areas, and fire areas in coal mining areas, corresponding prevention and control engineering plans are formulated. After the project management, the effects of eliminating gangue mountains, filling ground fissures, treating subsidence areas, and preventing and extinguishing coalfield fires are achieved. On this basis, the coal mine's topsoil can be transformed, vegetation can be restored, and the ecological environment can be restored.

6.1 Project characteristics

The profession is highly comprehensive. The ecological environment restoration and management project involves multi-disciplinary and multi-field issues and requires multi-field and multi-professional support. It is highly targeted and needs to formulate detailed treatment and restoration plans based on the existing conditions and management requirements of different coal mines.

6.2 Engineering advantages

The Institute of Environmental and Engineering Geology (East Meng Division) has a wide range of research fields, rich management experience, and excellent engineering results. Through the effective management of the ecological environment of coal mines, comprehensive utilization of waste can be achieved, the ecological environment can be protected, and the sustainable development of economic development and social benefits can be promoted.

Intention of Dynamic Monitoring of Temperature During Grouting Treatment Process

Continuous Tracking of Treatment Effects on the Surface

7. Goaf exploration and management project

Through the exploration and mining analysis of coal mine goaves, targeted comprehensive management plans are formulated according to different purposes of use to enhance the strength of rock formations, reduce the erosion and impact of groundwater on goaves, reduce ground subsidence, and meet construction requirements. The purpose for which the structure is to be used.

7.1 Project characteristics

Highly professional and comprehensive, the goaf treatment project involves multi-disciplinary and multi-field issues and requires multi-field and multi-professional support; it is highly targeted and needs to formulate detailed treatment plans based on the different goaf conditions and treatment requirements of coal mines; Engineering It is technology-intensive and requires a large number of engineering technology means and advanced engineering technology equipment.

7.2 Engineering advantages

The Institute of Environmental and Engineering Geology (Eastern Meng Division) has a wide range of research fields, rich management experience, excellent equipment and technology, and remarkable engineering results. Through effective management of goaves, geological disasters caused by goaves can be effectively prevented and controlled, the safety of personnel and equipment in and around mines can be ensured, land and resources can be rationally utilized, and maximum economic benefits can be achieved.

Goaf Control Project Construction Site

8. Mine slope management project

Through the survey, evaluation, and experimental analysis of landslides, high slopes, and open-pit mine slopes, we can formulate corresponding support reinforcement, hydrogeological control, geological isolation, and other treatment plans to improve slope stability and achieve slope safety. Purpose.

8.1 Project characteristics

High professional comprehensiveness, slope management projects involve multi-disciplinary and multi-field issues, requiring multi-field and multi-professional support; highly targeted, targeted treatment plans need to be formulated according to different geological conditions and types of slopes; safety assurance requirements High, slope management must ensure the prevention of landslides, collapses and other disasters.

8.2 Engineering advantages

The Institute of Environmental and Engineering Geology (Eastern Meng Division) has a wide range of research fields, rich management experience, excellent equipment and technology, and remarkable engineering results. Through effective management and monitoring of slopes, geological disasters caused by slopes can be effectively prevented and controlled, the safety of personnel and equipment in and around mines can be ensured, and resources can be rationally utilized and maximize economic benefits.

Slope Deformation Monitoring and Control