1) intensity of oxygen blowing
供氧强度
1.
The effect of following factors such as converter conditions,raw material supply,air suction rate,recovery conditions,and intensity of oxygen blowing on converter gas recovery ratio was studied.
以宝钢二炼钢250 t转炉煤气回收系统为背景,结合转炉煤气成分变化曲线从理论上分析了提高煤气回收量的基本途径,研究了转炉工序设备条件、原料条件、空气吸入量、回收条件、供氧强度等因素对转炉煤气回收量的影响,其中空气吸入量、回收条件、供氧强度等因素的影响尤为显著。
2.
The effect of factors such as converter device, raw material, air imbibed quantity, recovery restricted condition, and intensity of oxygen blowing on converter gas recovery ratio was studied, especially the effect of the air imbibed quantity.
针对国内绝大部分钢厂转炉煤气回收利用效果不理想的现状,以宝钢二炼钢转炉煤气回收系统为背景,结合转炉煤气成分变化曲线从理论上分析了提高煤气回收量的基本途径,研究了转炉工序设备条件、原料条件、空气吸入量、回收条件、供氧强度等因素对转炉煤气回收量的影响,其中空气吸入量、回收条件、供氧强度等因素的影响尤为显著。
2) intensity of oxygen supply
供氧强度
1.
The intensity of oxygen supply and steel output can be increased by 0.
转炉采用高效吹氧技术可提高供氧强度0。
3) oxygen blow rate
转炉供氧强度
1.
The present article analyses the main factors impacting the productivity of the converter and describes the production practice of raising the potential productivity of the converter by taking a series optimized processing measures such as increasing the converter charge,intensifying the oxygen blow rate and adopting the single carbon drawing practice.
分析影响转炉产能的主要因素,阐述武钢第一炼钢厂通过增加转炉装入量、提高转炉供氧强度、采用一次拉碳等工艺优化措施,来充分挖掘转炉产能的生产实践。
4) supply intensity
供给强度
1.
From the aspects of selecting foam fire agent,determining foam supply intensity and fire suppression equipment,the s.
从改善能源结构、促进农业生产和消费、环境保护等方面,分析了我国推广使用车用乙醇汽油的战略意义,结合公安部天津消防研究所开展的车用乙醇汽油灭火试验研究,讨论了车用乙醇汽油的火灾危险性和防范措施,从泡沫灭火剂的选择、泡沫供给强度的确定、灭火技术装备等方面,对车用乙醇汽油火灾的扑救进行了探讨。
5) air supply intensity
供气强度
1.
The relations of the stirring time in molten bath of composite blown conveter to the bottom air supply intensity were studied under different working conditions of bottom blowing ejection gun.
针对实际生产过程中转炉底吹喷枪可能出现的异常堵塞情况,研究了底吹喷枪正常、部分堵塞或全部堵塞等不同工况下,复吹转炉熔池内的搅拌混匀时间与底吹供气强度的关系。
6) water supply intensity
供水强度
1.
The minimum water supply intensity for extinguishing tank fire with water spray was deduced through reducing flame temperature and making flammable vapor in the tank beyond the burning limits.
通过对液体燃料贮罐火灾燃烧机理的分析,阐述了罐内式水雾灭火方法扑救这类火灾的可行性,并通过降低火焰温度和使罐内可燃蒸气超出燃烧极限范围的两种途径,推导出罐内式水雾灭火方法的最小灭火供水强度的估算公式,并在直径2。
2.
Empirical equation of cooling water supply intensity for oil tanks protection against sunshine was deduced with thermodynamic principles.
利用热力学方程导出油罐防日晒冷却水供水强度,并将此供水强度与消防冷却水供水强度结合考虑,通过优化水幕喷头的布置,充分利用水幕喷头工况,从而降低油罐水冷却系统的冷却水量和能耗。
补充资料:供氧强度
供氧强度
specific flow rate of oxygen in steelmaking
gongyangqiangdu供氧强度(speeifie flow rateof oxygen insteelmaking)转炉炼钢过程中单位时间向熔池中每1吨钢水(或钢铁料)的供氧量(m“/min·t)。数学表达式为 二,二。*氧流量 供氧强度一母兰乡叠 二二抓二一钢水量为确定供氧强度,需先求出每1t钢铁料的用氧量。按化学反应求出每1t钢铁料中C、Si、Mn、P、Fe氧化需氧量,然后再根据氧气的纯度和氧气利用率进行修正,最后扣除冶炼过程加入的铁矿石或氧化铁皮带入的氧,即得出每吨钢铁料实际用氧量。由于转炉炼钢时最大量被氧化的元素是碳,一般可采用下列的简便公式计算供氧量(即氧气流量m3/min)Q: 。_二上旦团丛望兰丛丝二上至担些鱼垫卫二旦旦、12 Q-一W 乳Zt式中[C、为铁水含碳量,%;[C孤为终点钢水含碳量,%;9.33为氧化铁水中每1%[C〕的耗氧量;W为钢铁料装入量,t;和。为氧气用于脱碳的效率,一般为0.70一0.75,如吹炼高磷铁水,此系数可取下限或小于下限;t为供氧时间,min;它与铁水成分、所炼钢种、化渣速度、炉子吨位和类型有关,一般为13~25min,大炉子和吹炼高磷铁水偏上限,小炉子和吹炼低磷铁水偏下限。氧气顶吹转炉的供氧强度,一般为2.5~4.0m“/min·t,个别情况在5.0m3/min·t以上。同吨位的复吹转炉供氧强度高于顶吹转炉。 (王舒黎)
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