Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Jakabský tefan"'
Publikováno v:
Acta Montanistica Slovaca, Vol 7, Iss 1, Pp 19-22 (2002)
The possibility of microwaves utilisation in drying processes of different materials (e.g. wood, textiles, coffee, paper), treating of synthetics, glass and ceramic materials, vulcanisation of gum, melting of ferrous and non-ferrous ores, intensifica
Externí odkaz:
https://doaj.org/article/4b3f7c013d2943a0b000dab358751987
Publikováno v:
Acta Montanistica Slovaca, Vol 7, Iss 1, Pp 23-27 (2002)
The contribution presents the results of the cleaning of waters contaminated by heavy metal ions by means of magnetic sorbents that in special cases are also called magnetic carriers. The wastes from metallurgical industry and thermal power generatio
Externí odkaz:
https://doaj.org/article/f39e54133fc44ddd9a2ffbf2ce74a098
Publikováno v:
Acta Montanistica Slovaca, Vol 5, Iss 3, Pp 251-254 (2000)
The contribution describes results of steam coal washing in water-only (WO) cyclone at various diameter of underflow jets. The overflow jet with the diameter of 68 mm was used. In the case of underflow the following jet were applied: 18 mm, 15.6 mm a
Externí odkaz:
https://doaj.org/article/ba0b35827c2f4052bd9b11220ca8c8b5
Publikováno v:
Acta Montanistica Slovaca, Vol 5, Iss 1, Pp 36-42 (2000)
The contribution gives an attention to a new generation of equipment operating under action of high centrifugal forces. Their development was caused by a low efficiency of conventional mineral processing facilities as well as by the losses of valuabl
Externí odkaz:
https://doaj.org/article/a4619e6ef11c47deae8f891f6625bd4d
Publikováno v:
Acta Montanistica Slovaca, Vol 3, Iss 3, Pp 434-438 (1998)
The paper describes mathematical model of the water only cyclone function on the basis Of experimental data. The experiments have been realized in a pilot plant cyclone. The model was verified in the case of steam coal preparation from the Cíge¾, H
Externí odkaz:
https://doaj.org/article/9db51870df7c44a0ba1a56121588cb20
Publikováno v:
Acta Montanistica Slovaca, Vol 3, Iss 3, Pp 425-428 (1998)
The contribution presents the results of tests on a gravity separation of steam coal from the Cíge¾ Colliery. The preparation tests were carried out in a multigravity separator Mozley. The preparation conditions and the quality of obtained products
Externí odkaz:
https://doaj.org/article/a20f2c0dcf744b39aa117660ca6daee1
Publikováno v:
Acta Montanistica Slovaca, Vol 3, Iss 3, Pp 244-250 (1998)
The contribution gives attention to the general trends in the coal economy in the 90s. The most significant world´s coal producers are presented with regard to the total coal production as well as to the hard and brown coal production. The article a
Externí odkaz:
https://doaj.org/article/c871265db31f49bd8ed6680ab0a43710
Publikováno v:
Acta Montanistica Slovaca, Vol 3, Iss 3, Pp 405-408 (1998)
The contribution deals with the possibilities of ferrofluid application as a separation medium and a selective wetting agent with the aim of desulphurization and ash content decreasing of brown coal from Slovak deposits. The influence of magnetic fie
Externí odkaz:
https://doaj.org/article/1787c4b6e0564466886e7398cb14dbdc
Publikováno v:
Acta Montanistica Slovaca, Vol 7, Iss 1, Pp 37-39 (2002)
The contribution deals with the preparation of small-diameter briquettes on the basis of desintegrated phyto-materials and the admixture of coal and coke. The phyto-materials are classified as a dry biomass that can be, on the one hand, the wastes fr
Externí odkaz:
https://doaj.org/article/300677e69462434787f356d6a2d098dc
Publikováno v:
Acta Montanistica Slovaca, Vol 5, Iss 3, Pp 283-285 (2000)
The heating and processing of materials using microwaves becomes increasingly popular for industrial applications. Compared to conventional heating, microwave processing can provide a rapid, the production of materials with unique properties, and red
Externí odkaz:
https://doaj.org/article/53b1bf7d7b694109be79efc20ed263b8