共查询到17条相似文献,搜索用时 140 毫秒
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建立了以在线优化控制为目的的环形加热炉炉内传热数学模型。管坯内部采用柱坐标形式的二维非稳态导热模型,炉膛传热过程采用分段零维模型,并提出了适用于在线控制的炉内辐射换热的新解法。实测验证了模型的合理性和准确程度,实现了管坯温度的在线跟踪。在此基础上,开发了环形加热炉在线优化控制系统。该系统投入运行后,管坯加热质量有明显改善,环形加热炉燃耗和管坯氧化烧损分别降低了6%和8%。 相似文献
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B. V. Krokhin 《Metallurgist》2005,49(5-6):200-201
A new complex being built at the Nizhniy Tagil Metallurgical Combine will include the following furnaces: a rotary heating
furnace with a capacity of 50 tons/h or 100 semifinished products/h; another rotary furnace, equipped with quenching tables,
for heating wheels prior to quenching; a tempering furnace. All of the furnaces will have modern control systems to control
the processes of heating the semifinished products and heat-treating the wheels. These advanced furnaces will make it possible
to improve the quality of the heating operation, reduce the energy costs incurred in production, and decrease the amount of
metal lost due to oxidation.
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Translated from Metallurg, No. 5, p. 62, May, 2005. 相似文献
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The problems of the production of a so-called casting rod blank made of a refractory casting alloy in the vacuum induction furnaces of AO Metallurgical Plant Electrostal are considered. A unique technology of casting and subsequent treatment of as-cast rod blanks made of refractory alloys is developed, tested, and optimized. As a result of the developed and performed measures for the production of metal products in the Consarc furnace, the ingot-to-product yield increases by 15% as compared to metal casting in an ISV-1.0 furnace. As a result, we have widened the range of cast alloy grades and are going to cast metals for the manufacture of blanks of other sizes and ranges of alloy an steel grades. 相似文献
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在宝钢钢管调质炉(IPSEN炉)控制系统的改造中,用西门子S7-400的PID功能软件模块改造原模拟调节器,以实现加热调质温度控制.介绍了用S7-400的PID控制模块构成淬火炉、淬火油槽、回火炉温度控制的方法,并由此提出对宝钢钢管生产中其它加热炉控制系统改造的选择方案. 相似文献
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