+86 0371 8654 9132

analysis of oil shale high selective mining with surface

ANALYSIS OF OIL SHALE HIGH-SELECTIVE MINING WITH SURFACE ...

ANALYSIS OF OIL SHALE HIGH-SELECTIVE MINING WITH SURFACE MINER IN ESTONIA E ... Analysis of Oil Shale High-Selective Mining with Surface Miner in Estonia 53 energy (fuel) consumption and, on the other hand, to cutting speed and oil shale quality [6] (see Fig. 2, Table 2). 0.0 2.0 4.0 6.0 8.0 10.0 12.0 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 Size

Analysis of oil shale high-selective mining with surface ...

[Show full abstract] high-selective oil-shale mining technology and the cutting quality parameters analysis results. Size distribution and calorific value of oil shale is in dependence on ...

(PDF) HIGH SELECTIVE OIL SHALE MINING - ResearchGate

The present paper introduces a highly selective oil-shale mining technology and results of an analysis on cutting and quality parameters. Size distribution and calorific value of oil shale is in ...

(PDF) High selective oil shale mining

The present paper introduces a highly selective oil-shale mining technology and results of an analysis on cutting and quality parameters. Size distribution and calorific value of oil shale is in ...

HIGH SELECTIVE OIL SHALE MINING - kirj.ee

High Selective Oil Shale Mining 307 Fig. 2. Partial seam longwall mining of oil shale. Fig. 3. High selective mining with surface miner. First, in the years 1992–93, dolostone mining by using a Wirtgen 2000 SM surface miner (Wirtgen Group, Germany) was carried out in Kurevere quarry, and limestone mining in Väo and Aru-Lõuna quarries (Fig ...

(PDF) HIGH SELECTIVE OIL SHALE MINING Veiko Karu ...

In Estonia, high selective mining (Fig. 3) tests have been conducted in limestone, dolostone and oil shale mining areas. First, in the years 1992-93, dolostone mining by using a Wirtgen 2000 SM surface miner (Wirtgen Group, Germany) was carried out in Kurevere quarry, and limestone mining in Väo and Aru-Lõuna quarries (Fig. 4). The strength of limestone was from 60 to 100 MPa. Additional ...

(PDF) HIGH SELECTIVE OIL SHALE MINING Ingo Valgma ...

Academia.edu is a platform for academics to share research papers.

Best Available Technology for the Environmentally Friendly ...

assessment of a high-selective oil-shale mining technology using surface miner. The main targets are: Overview of the oil shale usage in Estonia. Analysis of oil shale quality, surface miner environmental impacts, CO2 capture and storage technologies. Analysis of available mining parameters with surface miner by the quality, extraction and productivity factors. Elaboration of the optimization ...

Risk Assessment of Surface Miner for Estonian Oil Shale ...

(Nikitin at al., 2007) The most perspective advantage of SM is high-selective mining. Surface miner can cut limestone and oil-shale seams separately and more exactly than rippers (2-7 cm) with deviations about one centimeter. It is estimated that due to precise cutting enables surface miner to increase the output of oil shale up to 1 tone per ...

Best Available Technology for the Environmentally Friendly ...

assessment of a high-selective oil-shale mining technology using surface miner. The main targets are: Overview of the oil shale usage in Estonia. Analysis of oil shale quality, surface miner environmental impacts, CO2 capture and storage technologies. Analysis of available mining parameters with surface miner by the quality, extraction and productivity factors. Elaboration of the optimization ...

THE SURFACE MINER SUSTAINABLE TECHNOLOGY

The paper introduces a high-selective oil-shale mining technology and the first results of surface miner Wirtgen 2500SM tests. The technology allows to decrease oil-shale loses from 10-15% up to 5- 7%. Mining process of the surface miner has a lower disturbing impact, which is topical in open pits and quarries especially in densely populated areas. The low level of dust and noise emissions and ...

The Size Distribution and Calorific Value Regulation ...

The paper introduces a high-selective oil-shale mining technology and the cutting quality parameters analysis results. Size distribution and calorific value of oil shale is in dependence on cutting thickness and cutting (advance) speed. It is possible to achieve required average size of mined oil-shale particles, which was completed with the present investigation data. The obtained ...

Oil Shale Mining Developments in Estonia as the bases for ...

2006- Tests and planned test of high-selective mechanical mining Technology Most of Estonia’s minerals are mined in surface mines. Still half of oil shale is mined underground showing future trends of increasing underground mining capacities. The main used mining technologies are: Open cast (strip) mining Room and pillar mining (longwall mining is finished, shortwall continuous mining is ...

Utilising selective extraction, crushing and separation of ...

years, high selective hand mining was used due to the absence of machines. Oil shale and limestone layers and pieces were broken by grub axe and hammer and loaded by hand shovel. The main problem related to the losses and dilution was the rock that contained both oil shale and limestone and thus could not be separated by hand. That rock was either left to the mine, sorted out later by hand and ...

Article The Oil Shale Transformation in the Presence of an ...

20 analysis (DTA-TGA). 21 . Regarding oil shale processing, there are two main approaches: mining with subsequent surface . 22 retorting and the . in situretorting processes . 6. In order to overcomethe limitations imposed by 23 mining and retorting of oil shale, namely the disposal of spent shale, water resource needs and . 4 . 1 land surface alteration during the mining process, energy ...

(PDF) FUTURE OF OIL SHALE MINING TECHNOLOGY IN

Fig. 2 .2High-selective surface mining with centrally located cutting drum. Fig. 3 .3High-selective surface mining with rear located cutting drum. Fig. 4 .4Generalized initial productivity chart of surface miner, Fig. 5 .5Initial results of the surface milling tests in oil shale and limestone deposits. Fig. 6 .6Double-drum continuous miner for mechanical -selective room and pillar mining. Fig ...

(PDF) OIL SHALE MINING-RELATED RESEARCH IN

Additionally Wirtgen surface miners have been tested (SM2100 and SM2600) for two years as well as SM2200 and Man Tackraf surface miner, and currently the testing of Wirtgen surface miner SM2500 for high selective mining in an open cast mine is being performed. The main field to be developed in addition to mine backfilling is mechanical extraction of oil shale. Potentially this allows ...

GEOLOGICAL ASPECTS OF RISK MANAGEMENT IN OIL SHALE MINING

Underground and surface mining in the Estonian oil shale deposit causes a large number of technical, economical, geological, ecological and juridical problems, which cannot be solved on conventional theoretical basis. Risk management is a most powerful tool to solve complicated mining problems. The data, which have been accumulating in the last 40–50 years, concern the experience obtained by ...

Vaizene selective mining

Oil Shale, 2013, Vol. 30, No. 2S, pp. 305–325 doi: 10.3176/oil.2013.2S.10 ISSN 0208-189X © 2013 Estonian Academy Publishers HIGH SELECTIVE OIL SHALE MINING VIV

Oil Shale Mining Developments in Estonia as the bases for ...

2006- Tests and planned test of high-selective mechanical mining Technology Most of Estonia’s minerals are mined in surface mines. Still half of oil shale is mined underground showing future trends of increasing underground mining capacities. The main used mining technologies are: Open cast (strip) mining Room and pillar mining (longwall mining is finished, shortwall continuous mining is ...

TECHNOLOGICAL AND ENVIRONMENTAL ASPECTS OF

High-selective technology of surface miner is prospective owing to reduced dust and noise, as well as non-existent vibration [4]. The functional unit of the system under investigation is one tonne of oil shale. The functional unit is a reference unit, for which the inventory and impact assessment results will be presented, making it possible to compare the results of new and old mining ...

(PDF) FUTURE OF OIL SHALE MINING TECHNOLOGY IN

High-selective surface mining with rear located cutting drum. Future of Oil Shale Mining Technology in Estonia 129 Testing of limestone and oil shale cutting in surface mines Recent tests have shown that the decision for changing or improving extract- ing technology depends on usability of the equipment. Usability has been tested by measuring the production parameters. The main factors ...

Shale Oil - an overview ScienceDirect Topics

In surface mining the oil shale is transported to aboveground facilities. There the oil shale is crushed and loaded into a reactor known as a retort, where the temperature is increased to about 400–500°C to decompose the kerogen and release the shale oil. In in situ-retorting heat is applied directly to the rocks underground and the shale oil obtained is extracted in a manner similar to ...

Investigation on breakage behaviour of oil shale with high ...

01/05/2020  Table 1 summarises the chemical properties of two untreated oil shale samples. Both FS and XS oil shale samples have high ash content in the range of 67 %–78 % as compared to 4.5%–20% and 1.9 %–13.4 % in different ranks of coal [] and species of biomass [], respectively.Table 1 also illustrates the mineral composition of both oil shale samples as determined via the SEM/EDS, whilst

APPLICATION OF THE RISK ASSESSMENT METHODS OF RAILWAY ...

Oil shale reserves are estimated to be approximately four billion tonnes. 85% of mined oil shale is used for generation of electric power and a large share of thermal power, and about 15% goes for shale oil production. Oil shale industry of Estonia provides a significant contribution to the country’s economy, but economically viable transportation of oil shale to consumers is impossible ...

CONCEPT OF RISK ASSE SSMENT FOR ESTONIAN OIL SHALE

Underground mining in Estonian oil shale mines causes a large number of technical, economical, ecological and juridical problems. The data, which have become available in the last 4050 years, provide a foundation for the ideas recommended to be used in risk assessment. This study addresses risks associated with the collapse of mining blocks, including environmental problems. Up to present ...

Oil shale - Wikipedia

Oil shale is an organic-rich fine-grained sedimentary rock containing kerogen (a solid mixture of organic chemical compounds) from which liquid hydrocarbons can be produced, called shale oil.Shale oil is a substitute for conventional crude oil; however, extracting shale oil is more costly than the production of conventional crude oil both financially and in terms of its environmental impact.

Oil shale in Estonia - Wikipedia

Analysis of Estonian oil shale resources and mining possibilities intensified during the early 20th century while Estonia was part of the Russian Empire.Industrial development was under way in Saint Petersburg (known as Petrograd in 1914–24), but regional fuel resources were in short supply. A large shale oil extraction plant for processing Estonian oil shale was proposed in 1910.

Shale oil extraction - Wikipedia

Shale oil extraction is an industrial process for unconventional oil production. This process converts kerogen in oil shale into shale oil by pyrolysis, hydrogenation, or thermal dissolution.The resultant shale oil is used as fuel oil or upgraded to meet refinery feedstock specifications by adding hydrogen and removing sulfur and nitrogen impurities.. Shale oil extraction is usually performed ...