Coal and Gangue Separating Robot System Based on Computer Vision

In coal production the raw coal mined directly from coal mines contains a lot of gangue which contains a lot of heavy metals and affects the calorific value of coal causing serious pollution to the environment [ 1 ] Therefore it is essential to separate coal and gangue to make them play their respective roles [ 2 3 ]

Effects of Coal Gangue on Cement Grouting Material Properties

The coal gangue is one of the most abundant industrial solid wastes and pollute source of air and water The use of coal gangue in the production of cement grouting material comforms to the basic state policy of environment protection and the circular using of natural resources

How to effectively use coal gangue Quora

Answer Coal gangue is a solid waste discharged during coal mining and coal washing It is a dark gray rock with lower carbon content and harder than coal that is associated with coal seams during coal formation Including the excavation gangue in the process of roadway excavation the gangue

Microwave activation of coal gangue for Al compound IOPscience

The coal gangue was activated by microwave From the results of XRD and 27 AlMAS NMR we can speculate the reactions occurred and new species were generated during the microwave activation process Effects on power grades of microwave oven kinds of additives time of microwave activation temperatures of water bath and ratio of coal gangue to additives were investigated

What is gangue with example Explained by FAQ Blog

What is coal gangue Coal gangue a solid waste generated during coal mining and washing accounts for approximately 10% 15% of the total coal production The accumulative amount of coal gangue is largely increasing associated with coal mining activities becoming one of the largest industrial residues What is froth flotation 12

Comprehensive utilization and environmental risks of coal gangue A

Coal gangue a solid waste generated during coal mining and washing accounts for approximately 10% 15% of the total coal production The accumulative amount of coal gangue is largely increasing associated with coal mining activities becoming one of the largest industrial residues

Review of Coal Gangue Characteristics and Ecological Restoration

The disorderly accumulation of coal gangue not only occupies a large amount of land resources and causes natural disasters but also pollutes the surrounding ecological environment which in turn affects human health and normal production and life

Research Progress on Volatile Organic Compounds Emissions from Coal

Considering upward concentrations of VOCs emitted from a great number of coal fired power plants in China considerable contributions of this primary source to current air pollution remain to be addressed Previous studies have underestimated the concentration… View on Springer Save to Library Create Alert Cite References

Gangue Sorting Equipment Wholesale

Wholesale Gangue Sorting Equipment ☆ Find 9 gangue sorting equipment products from 4 manufacturers suppliers at EC21 ☆ Choose quality gangue sorting equipment manufacturers suppliers exporters now EC21

Trace Elements in Coal Gangue A Review IntechOpen

Generally the main mineral phases of coal gangue are kaolinite quartz pyrite illite calcite ankerite and montmorillonite [ 36 37 ] The coal gangue samples are usually dominated by silicon dioxide and aluminum oxide followed by ferric oxide and potassium oxide accompanied with some trace elements [ 37 ]

purpose of coal gangue screening

Fast identification model for coal and gangue based on … 2024 4 19 · In the process of coal mining the coal quality is greatly reduced due to the mixing of gangue and the stacking and burning of coal and gangue can cause serious environmental pollution The fast identification of coal and gangue is an important technology for gangue sorting

PDF PRIMUS a new process for recycling by products and producing

As a result the form the gangue into an inert iron and zinc free slag sui feasibility of the treatment in the PRIMUS process is table for valorization in road or building construction Excellent quality DRI is produced using ore fines and low cost coal fines as the single energy source no preparation of the raw materials is required

What are the definition of coal gangue and use of coal gangue Quora

Coal contains mineral impurities In one example when the coal is burned in a power plant the impurities remain mostly oxides in a partially fused granular form called fly ash and must be removed continuously during boiler operation Finer particles are captured from the boiler exhaust The volume produced is quite large

Study on Foamed Concrete Used as Gas Isolation Material in the Coal

In view of the serious threat of gas accumulation in the coal mine goaf and the limitations of the existing gas sealing materials the orthogonal experiment was developed to study a new type of foamed concrete for mine gas sealing Dry density gas permeability and compressive strength were studied as the material indicators according to the demands of the gas isolation material in the coal

Remote sensing inversion and spatial variation of land surface

Data sources and preprocessing treatments This paper is based on the Landsat 8 OLI remote sensing images from 2024 and 2024 Exposed coal and coal gangue easily absorb heat and cause increased temperatures while piled coal gangue hills are prone to heat and spontaneous combustion Therefore many factors cause high temperatures in mining

[PDF] Hydrothermal Synthesis of SBA 15 Using Sodium Silicate Derived

Well ordered SBA 15 was prepared with a hydrothermal route by sodium silicate derived from coal gangue The as prepared sample was analyzed by SAXRD BET TEM and SEM respectively The results indicate that at a low hydrothermal temperature of 100 ∘ C the well ordered mesoporous SBA 15 could be synthesized The surface area pore volume and pore size of the sample are 552 m 2 /g cm

Coal gangue detection and recognition algorithm based on deformable

Design and implementation of coal gangue detection and recognition device This study proposes an method for coal gangue detection and recognition on the basis of the DCN YOLOv3 algorithm Firstly the method collects real time video images of a conveyor belt operation through an industrial camera erected perpendicular to the conveyor belt

Using Chinese Coal Gangue as an Ecological Aggregate and Its

Coal gangue is a kind of industrial solid waste with serious ecological and environmental implications Producing concrete with coal gangue aggregate is one of the green sustainable development requirements This paper reviews the properties and preparation methods of Chinese gangue aggregate studi …

CN107289671A A kind of coal gangue storage yard water source heat

A kind of coal gangue storage yard water source heat pump system including coal gangue storage yard heat exchange system water source heat pump units plate type heat exchange unit and air conditioning terminal coal gangue storage yard water source heat pump system the heat that the oxidation of gangue can be made full use of to send heat inside coal gangue storage yard is

Movement and Protection for Random Shape Rockfalls in Steeply Hindawi

In view of the randomness of rockfalls shape and irregularity of the bottom floor of working face in steeply dipping coal seams SDCS it is difficult to accurately simulate rockfall movement and it is consequently unable to effectively protect against multirockfalls Therefore a method for generating random shape rockfalls based on ellipsoid equation is proposed and a 3D grid model of

Physicochemical Problems of Mineral Processing nr 41 2024

Formation of hydrogen peroxide H2O2 an oxidizing agent stronger than oxygen by sulphide minerals during grinding was investigated It was found that pyrite FeS2 chalcopyrite CuFeS2 sphalerite Zn Fe S and galena PbS which are the most abundant sulphide minerals on Earth generated H2O2 in pulp liquid during wet grinding in the presence or devoid of dissolved oxygen in water and

Effects of Underground Coal Mining on Soil Spatial Water Content

The spatial distribution and the source of heavy metals in the soil in coal chem industrial areas should be investigated to help prevent further heavy metal pollution in industrial areas and reduce heavy metal exposure to factory workers fly ash vs coal gangue as backfill substrates on soil chem and microbial properties in mining

Gangue Wikipedia

For example in 2024 about 130 million tons of gangue were produced per year from coal mining in China 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 fly ash to produce building materials

Preparation of a Gangue Based X‑type Zeolite Molecular Sieve

Coal gangue is a byproduct of coal mining and processing various industrial processes leading to the generation of large which is unavoidable due to limitations of the existing technical amounts of wastewater contaminated with these chemicals

Influence of coal gangue mulching with various thicknesses and particle

Water availability seriously affects vegetation restoration in arid mining areas and mulching is an effective way to improve soil water conditions Coal gangue occupies large swathes of land resources resulting in ecological fragility and various environmental problems Despite coal gangue having mineral elements similar to those in soil its potential function as a mulch for soil water

Identification Method of Coal and Coal Gangue Based on Dielectric

In this paper the capacitance method and SVM are applied to identify coal and gangue and accurate and efficient identification results are obtained providing a new feasible solution for research on coal gangue identification Published in IEEE Access Volume 9 Article # Page s 9845 9854 Date of Publication 08 January 2024

coal gangue Spanish translation Linguee

Many translated example sentences containing coal gangue Spanish English dictionary and search engine for Spanish translations Look up in Linguee Suggest as a translation of coal gangue External sources not reviewed It is suitable for grinding various kinds of non flammable and non explosive materials with Mohs hardness below 9

Utilization of coal gangue for preparing high‐silica porous materials

BACKGROUND

Coal gangue causes a series of environmental problems due to its low utilization rate and high amount of hoarding However the

PDF Influence of different sources of coal gangue used as

Commonly coal gangue is composed of a mixture of sandstone shale and carbonaceous slate with SiO 2 and Al 2 O 3 as its main chemical constituents Mullite Based Ceramics from

Effects of constructing farmland with large amounts of iron tailings as

Baker et al 19 used coal gangue prepared from combustion products such as fly ash and sludge to produce stable soil that could be directly applied in farmland