Февраль 11th, 2017 
alex ___A shief metallurg of «TehnoIngeniring» company write:
___Principle difference of converter with bottom blowing from converter of upper blowing is presence removable bilge beside converter of bottom blowing. For the rest design of the body and fireproofs same, as beside converter upper blowing. As fireproof use the thermo processed periclaz (magnesite) brick, as well as brick on base of dolomite. In 250 tonns converter of bottom blowing the fireproof worker layer sewer and lower cone is executed from tarred of the dolomite magne brick, higher part of throat — from chromium magnesite. Stability sewer of fireproof is 900…1100 smeltings, stability bilge 400…700 smeltings.
___Bottom furms present itself two located one in other metallic pipes. On internal pipe give the gas figurative oxygen and passion seen lime, but through clearance between internal and external pipe — coolling reagent (usually natural gas, propane, fuel oil). The Size of the clearance depending on capacities of the converter and numbers of furms varies within 0,5…2,5 mms. In 250 tonns converter in bilge there is 12 furms with diameter of the internal pipe 45 mms, external 61 mms and with clearance 2,5 mms.
___A Body and mechanism of the tumbling for bottom converter have some constructive particularities in contrast with converter of upper blowing. These particularities are defined by way cart of blow and consequently presence withdrawable bilge. Presenting to bilge of the oxygen or its mixture with powdery lime, as well as gaseous or fluid hydrocarbon is realized through hollow of furm. For the rest design of the cover and mechanism of the tumbling of the converter approximately such, as beside converter of upper blowing. The Obligatory element to designs bottom converter to big capacity is a fence with expanding door. The Converter is as it were in locked camera. This excludes the hit a surge and smoke in shop during slopping of the converter.
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P.S.
___Уважаемый читатель!!! Уверен, что эта интересная информация будет очень полезна для Вас, избавив от множества проблем в повседневной жизни. В знак благодарности, прошу Вас поощрить скромного автора незначительной суммой денег.
___Конечно, Вы можете этого и не делать. В то же время подмечено, что в жизни есть баланс. Если сделать кому-то добро, то оно вернётся к Вам через определённое время в несколько большем количестве. А если сделать человеку зло, то оно возвращается в очень скором времени и значительно большим.
___Предлагаю сделать свой посильный вклад (сумму можно менять):
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