Reduction of technogenic load from sludge collectors due to separation and dehydration of the stored material

Bubnova, Olena; Shevchenko, Oleksandr

doi:10.1051/e3sconf/201910900010

Cited by 4 publications

(2 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Parameters of enrichment waste hydraulic transport and features of handling particles in a turbulent state are given in [7]. The paper [3] substantiates the possibility of processing water man-made raw materials. When processing man-made raw materials, the main problem is the processing of the fine fraction.…”

Section: Introductionmentioning

confidence: 74%

“…As a result, it is concluded that it is better to mine storage tanks instead of building dams. In work [3], technical solutions for re-excavation of man-made mass or clearing are proposed, and technological schemes are developed. The authors made a justified decision to reduce the man-made load by reducing the area of the territories under the sedimentation tanks.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Prediction of the mineral components spatial distribution in tailings ferruginous quartzite enrichments

Babii,

Kratkovskyi,

Kuantay

2024

IOP Conf. Ser.: Earth Environ. Sci.

View full text Add to dashboard Cite

In Ukraine, a significant mass of potential man-made deposits is represented by waste from ferruginous quartzite enrichment. The mineral mass of such deposits is mixture of iron-containing minerals (magnetite, ilmenite) and quartz. The M.S. Poliakov Institute of Geotechnical Mechanics has developed a new methodology for the mineral components spatial distribution predicting in tailings of ferruginous quartzite enrichment. It includes the fractional and mineralogical composition of the samples study by optical method, and spatial useful components distribution of prognostication in waste and predictive plans construction for the useful components spatial placement. A previously unknown pattern of changes in mineral composition of wastes from mining ore production was revealed which caused by the turbulent transportation mode and waste deposition on the tailing (potential man-made deposit) area. This regularity arises from the fact that with decrease in the size of the mineral components particles with size of 0-200 microns, the share of the magnetic mineral magnetite increases linearly and, accordingly, the share of the non-magnetic mineral quartz decreases. The obtained new properties of man-made deposits from the waste (tailings) can be used in creation of resource-saving technology for the iron ore man-made raw materials processing and to determine their suitability for mining.

show abstract

Section: Introductionmentioning

confidence: 74%

Section: Introductionmentioning

confidence: 99%

Prediction of the mineral components spatial distribution in tailings ferruginous quartzite enrichments

Babii,

Kratkovskyi,

Kuantay

2024

IOP Conf. Ser.: Earth Environ. Sci.

View full text Add to dashboard Cite

show abstract

Prospects for using screens with double vibration-impact excitation for size separation and dewatering of wet mineral raw materials that are difficult to classify

Lapshyn,

Shevchenko

2024

IOP Conf. Ser.: Earth Environ. Sci.

View full text Add to dashboard Cite

One of the most labor-intensive and energy-consuming processes is the process of particle size separation and removal of moisture from products of wide particle size classes with a high content of small classes less than 0.2 mm in size. Such raw materials are dehydrated by traditional methods to 18-22% and are practically not classified. A review of methods for intensifying these processes showed the promise of vibration impact, which can be applied to both the sieving surface and the processed raw materials. The designs of screens with double vibration-impact excitation for particle size separation and dewatering of wet mineral raw materials are considered. The influence of operating parameters and screening time on the technological performance of these processes was experimentally studied. It was established that the use of a disintegrator simultaneously with an activator and disintegrating elements made it possible, without the use of additional power, to reduce the moisture content of the over-grid product to 4-5% while extracting the -0.1+0 mm class into the under-grid product to 83-85%. The results obtained confirmed the prospects of using screens with double vibration-impact excitation for size separation and dehydration of wet mineral raw materials that are difficult to classify.

show abstract

Analysis of the influence of the size of particles on the choice of design and mode parameters of the vibro-impact screen during dehydration and separation of materials

Shevchenko¹

2021

Geoteh. meh.

View full text Add to dashboard Cite

The article is aimed at the development of new methods of separation by size and dehydration of technogenic raw materials during vibro-impact screening. About 1 billion tons of coal enrichment waste with high coal content (25-70%) with up to 45% humidity have been accumulated in ash dumps and sludge settlers of Ukraine. A useful component can be removed from such waste. But traditional methods allow you to effectively separate only materials with particle sizes greater than 1 mm, and reduce the humidity of the finished product to 18-22% depending on the size The reasons for the decrease in the efficiency of these processes with a decrease in the particle size of the raw materials are analyzed. The conditions for increasing the intensification of these processes for raw materials of various sizes have been determined. The author analyzes the effect of particle size on the choice of mode and design parameters of a vibroimpact screen, which make it possible to intensify the loosening of raw materials and thereby increase the efficiency of separation by size and dehydration. Research data on dehydration and separation of materials with a size of + 0.4-1.0 mm are presented; + 0-0.4 mm and + 0-10.0 mm, where the average values of the results of five experiments in each mode are given. The proposed new method of vibroimpact screening is especially useful in the processing of technogenic raw materials of a wide range of sizes, when it is necessary to separate thin classes (as a rule, substandard product) and to dehydrate the finished (oversize) product as much as possible. The use of this method will increase the yield undersize product (-0.1 mm) to 75-80%, and reduce the humidity of the positive product to 4-7% As a result of the analysis for different classes of size the conditions provided are determined under which the maximum decrease in humidity and increase of minus product output is provided. The results obtained will be used to improve the process of separation by size and dehydration of technogenic raw materials, as well as to create a new vibro-impact screen.

show abstract

Reduction of technogenic load from sludge collectors due to separation and dehydration of the stored material

Cited by 4 publications

References 4 publications

Prediction of the mineral components spatial distribution in tailings ferruginous quartzite enrichments

Prediction of the mineral components spatial distribution in tailings ferruginous quartzite enrichments

Prospects for using screens with double vibration-impact excitation for size separation and dewatering of wet mineral raw materials that are difficult to classify

Analysis of the influence of the size of particles on the choice of design and mode parameters of the vibro-impact screen during dehydration and separation of materials

Contact Info

Product

Resources

About