ANALYSIS OF THE FLOW OF GAS/POWDER MIXTURE IN THE OXYGEN CONVERTER LANCE NOZZLES

Journal Title: Journal of Machine Construction and Maintenance - Year 2018, Vol 108, Issue 1

Abstract

A numerical solution of mathematical equations for the carrier gas and powder flow and numerical variables were used for establishing the effect of carrier gas pressure at the nozzles on the change of the thermodynamic flow of gas parameters of gas/powder mixture and pure gas in the nozzles at different operation modes. The calculations were based on the author’s computer program worked out from a mathematical model consisting of equations and parameters of thermodynamic flow of gas conditions. The results of simulations revealed that the change of entry pressure significantly affects the static pressure, gas velocity in the nozzles, the temperature of the carrier gas, and the velocity of i–th solid particle of the expelled powder. Apart from it, the effect of entry pressure before the nozzle on the density and velocity of j-th particle was also analysed. Similar results were obtained in works [1, 4]. Accordingly, the optimum conditions of pure gas jetting in the analysed converter are reached when the jetting out pressure is 1.7 MPa (during each“slag splashing”).Thetemperature before the nozzles should increase every second as this stabilizes the drop of power due to the pressure drop in the manometer. In this case, the lance has to be cooled with water[3].

Authors and Affiliations

Ruslan KUZEMKO, Viktor SINELNIKOV, Vladimir MASTYKASH, Dorota KALISZ

Keywords

Related Articles

IMPACT OF MACHINING CONDITIONS ON EXPLOITAION STABILITY OF THERMOPLASTIC COMPOSITE SCINTILLATORS

The paper presents research results on the degradation of scintillators made out of thermoplastic composite materials based on polystyrene (PS). The samples were machined with the tools made out of three different materi...

THE BASIC ALGORITHM OF THE ALL-SPEED GOVERNOR WITH ELECTRONIC CONTROL AND ITS HARDWARE IMPLEMENTATION

The article considers the results of theoretical and experimental studies devoted to the creation of an electronic control system of fuel injection in diesel engines. The method of synthesis of the algor...

FATIGUE CHARACTERISTICS OF 6082-T6 ALUMINIUM ALLOY OBTAINED IN TENSION-COMPRESSION AND OSCILLATORY BENDING TESTS

The paper presents the comparison of the results of experimental fatigue tests for 6082-T6 aluminium alloy, carried out for two states of loading: strain controlled tension-compression, and strain and bending moment cont...

ANTIBACTERIAL PROPERTIES OF POlYPROPYLENE PVD-COATED WITH COPPER OXIDE

Microbial biofilm formation called “bio-fouling” causes many both epidemiological as well as technological problems by increasing material and energy demand. Due to the fact of growing microbial resistance, currently use...

MONITORING THE OPERATIONAL PARAMETERS OF A POWER ROOF SUPPORT

Safety aspects of mining personnel as well as the safety of the coal mining processes are presented. A mechanised longwall system is commonly used in the coal mining industry. The system consists of the basic machinery,...

Download PDF file
  • EP ID EP615819
  • DOI -
  • Views 134
  • Downloads 0

How To Cite

Ruslan KUZEMKO, Viktor SINELNIKOV, Vladimir MASTYKASH, Dorota KALISZ (2018). ANALYSIS OF THE FLOW OF GAS/POWDER MIXTURE IN THE OXYGEN CONVERTER LANCE NOZZLES. Journal of Machine Construction and Maintenance, 108(1), 111-117. https://europub.co.uk/articles/-A-615819