Comprehensive utilization of energy resources to implement energy-saving comprehensive energy consumption per tonne of steel to Germany steel 0.684 tons of standard coal
Liu Ping
Yunnan Desheng Steel Company Limited (hereinafter referred to as German steel) since its inception, ongoing technological innovation, pay close attention to energy-saving environmental protection, vigorously implement the energy utilization, energy-saving “three wastes” the use of results are quite remarkable . 2006 1 August, the company comprehensive energy consumption per ton steel reached 0.684 tons of standard coal, the comparable energy consumption per ton steel reached 0.603 tons of standard coal, and domestic production targets compared to the same industry, has entered the domestic advanced level. Pairs of controllable fuel and power consumption optimization.
Steel was founded in Germany in August 2000, the western region development of the reform of property rights developed by a private enterprise.
German steel is established, using the same industry, advanced technology and advanced technology and equipment, energy saving and environmental protection facilities, fully furnished, through continuous promotion of technological innovation, pay close attention to energy management, and fully tap the energy comprehensive utilization of the production process, from the lower coal (coke), wind, water, electricity, gas (vapor), the potential energy on the right controlled fuel and power consumption optimization, and in all aspects of taking a series of energy-saving measures, energy-saving results are obvious for many years.
Germany thick material layer of steel first used low-temperature sintering operation, through the implementation of enhanced granulation, small ball sintering, homogeneous sintering, steam preheating and other measures, in the fan capacity of no-change scenario, sintering material thickness to achieve from the 500 mm to 700 mm, sintering process energy consumption from 2004 to 98kgce / t to the present 70kgce / t.
the same time, Germany Steel blast furnace operation by raising the level of technology to reduce the coke ratio, in the blast furnace smelting operation established to stabilize the furnace conditions, yield, natural delivery for the production of guidelines for organizing production, the blast furnace and matching equipment, in accordance with their characteristics use on the lower part of means of regulation, sum up to explore different periods of time, season with four matches of the charging system, operating system, so that not only the blast furnace to achieve a long-term, stable operation, but also achieved a low silicon smelting furnace, so that the technical economic indicators improved, energy-saving consolidation of the results.
2005 Nian 4 months, the new PCI system put into use, through continuous exploration and technology to improve, PCI combined with the air temperature control to achieve the bituminous coal mixed spray. Also, pay attention to safe operation of pulverized coal injection equipment operation under normal circumstances, an appropriate increase gradually the proportion of bituminous coal, through the stability of coal quality, coal replacement ratio could be enhanced greatly reduce coke use, and further reduce the cost of blast furnace smelting.
2006 Nian 5 months, oxygen-rich coal injection project put into use, the oxygen production of oxygen through the scheduling, used in blast furnace smelting in blast furnace smelting strength increased, the utilization factor increased, iron production increased significantly, strengthening smelting results are obvious .
in the steel, the German steel with slag splashing technology to improve the furnace, reducing the complement furnace refractories consumption and converter non-operating time to achieve the increased steel production, reduce tons of steel costs. Protection furnace technology advances, so that life BOF steelmaking furnace to achieve more than 18000. At the same time through the use of continuous casting and rolling process, the billet sent directly from the hot rolling line into the furnace to reduce the burning metal and increase productivity.
continuously increasing water, electricity and energy use management
iron and steel industry is a high energy-consuming industries in order to ensure normal operation of the company, German steel continue to increase as water, electricity and other energy-use management.
German steel for the electricity sector in recent years, increased degree of limited power, power grids, electricity demand to increase the number of peak averting the situation of electricity, production and technical department adopted a “peak load shifting, peak load shifting electricity” electricity regulation management measures to manage the various power units. And issued “Strengthening of the dry season to conserve electricity management,” which called for timely adjustment of the various units of electricity load to take power rationing measures and carry out limited electrical work accident. At the same time in accordance with the electricity sector, “to increase demand side management, and optimize the power consumption” principle and do a good job, “peak load shifting, peak load shifting power” work to improve the rate of electricity load; increase the night shift production organization, improve night - production load; production units to achieve “no increase in electricity tariff increase, no increase in power output,” Compression of various non-production of electricity, does not affect the right to suspend the production of equipment for electricity, effectively saving system power supply.
process for the insurance company’s smooth lines and optimization of the cost of production, the company has held a “special sintering production organization will” to develop the production of organizational measures. After a series of measures have been implemented, as well as sintering process improvement workshop section, sinter power consumption per unit of production by 2005 60.9kWh down to the current 52.37kWh.
It is understood that German steel production in 2004 of the No. 3 blast furnace is equipped with 10,000 kilowatts fans, is the company’s third-largest energy-consuming equipment. Since this summer, as fans of the mechanical performance characteristics of the original operation of the system difficult to match the air supply at a high-power operation, resulting in energy waste, which, the production department to develop a series of measures. Of the blast furnace operation in ensuring that the request to use the wind to control the fan in the 6200kW about the economy. As a result, daily saving of about 3000 ~ 6000kwh, you can save on electricity 9 ~ 180,000 kwh, equivalent to electricity 3.5 ~ 70 thousand yuan.
German steel production by strengthening the management of water diversion to take remediation to increase the water circulation rate, while increasing running, take, drop, leakage and inspection, to find the units of the above notification, demanding rectification. And through a new cycle of cooling equipment, out of 2 × 3MW generators of the circulating water cooling equipment, so that the cooling efficiency of existing equipment, and reduce the amount of new water added.
year, 2 ~ 3 months, the company overhaul of rolling on the decline in heating efficiency furnace with new technology completely new, built after use, the heating efficiency, with the HCR, machine yield markedly improved when . Appear in the production of cold by adding a large quantity of blank caused by coke oven gas shortages facing the contradictions Production Technology Division and the motor works on various coke oven gas used plant for a detailed investigation and analysis, development of the relevant gas organizational measures, balance co-ordination of the coke oven gas use. Meanwhile, the company (subsidiary) oxygen plant and Production Technology Division co-ordination of the various units of nitrogen use surveys, and developed the rational use of nitrogen, corresponding measures required to implement each branch to balance the use of nitrogen.
through a series of energy saving and energy-saving measures in the implementation of process improvement. German Steel has now reached “national steel industry policy,” the energy consumption index requirements, and proposed to in 2008 years ago, will be fresh water consumption per ton steel reduced to 6 tons. To be gas - steam turbine power generation project put into operation, self-power generating capacity reached 70% of total electricity consumption to achieve gas, steam, all the recycling, will make full use of secondary energy generated in the production manufacturing process.
in perfecting the energy management system under the premise of the German steel will also establish a recycling economy development mechanism-based iron and steel enterprises to conduct clean production as the core, the entire process of the establishment of closed-loop control system; in order to achieve sustainable development for the purpose of effectively change the economic growth; with resources, comprehensive utilization of energy focused on building a resource-oriented enterprises.
综合运用能源资源推行节能占吨钢德国钢0.684吨标准煤,综合能耗
刘砒嗯
云南德胜钢铁有限公司(以下简称德国钢)自成立以来,不断进行技术创新,狠抓节能环保,大力实施能源利用,节能“三废“使用成果十分显着。 2006年8月1日,该公司每吨钢达到0.684吨标准煤,综合能耗,每吨钢材达到0.603吨标准煤可比能耗,和国内生产的目标相比,同行业,已经进入了国内先进水平。可控双燃料和优化的功耗。
钢成立于2000年8月在德国,是由一家民营企业产权改革发展西部地区的发展。
德国钢铁成立后,采用同行业先进技术和先进的技术和设备,节能及环保设施,配套齐全,通过不断推动技术创新,狠抓能源管理,充分挖掘能源综合利用生产过程,从较低的煤(焦),风,水,电,气(汽),在右边的控制,燃料和电力消耗的优化潜力的能源,并采取一系列的能源的各个方面节能措施,节能效果显着多年。
德国钢铁厚料层首次使用低温烧结行动,通过加强造粒的执行情况,小球烧结,烧结均匀,蒸汽预热等措施在没有变化的情况球迷的身份,烧结材料厚度实现从500毫米到700毫米,从2004年烧结过程中的能源消耗98kgce /吨到现在70kgce /吨
与此同时,德国钢高炉操作,提高技术水平,降低焦比,高炉冶炼中建立稳定的熔炉条件,收益,用于指导生产的自然分娩生产经营组织炉,高炉及配套设备,根据它自身的特点使用的调节手段的下部,总结,探索不同的时段内,有四个赛季的比赛计费系统,操作系统,这样不仅爆炸炉实现长期,稳定运行,而且还实现了低硅冶炼炉,使技术经济指标有所改善,节能成果的巩固。
2005念4个月,新的PCI系统投入使用,通过不断探索和技术,才能得到改善的PCI与空气温度控制相结合,以实现烟煤混喷。此外,薪酬下,适当的逐步增加比例烟煤通过煤炭质量,煤炭替代率的稳定,正常的情况下注意喷煤设备的安全运行操作可提高焦炭的使用大大降低,并进一步降低成本高炉冶炼。
2006念5个月,富氧喷煤工程投入使用后,通过调度氧气生产的氧气,用于高炉冶炼高炉冶炼强度的增加,利用率提高,钢铁产量大幅增加,强化冶炼效果显着。
钢铁
,与溅渣护炉技术,提高炉德国钢铁,减少补炉耐材消耗和转换器的非工作时间,以实现增加钢铁生产,降低成本,吨钢材。保护炉技术的进步,使转炉炉龄达到18000多。在通过连铸连轧过程中使用的同时,派出的钢坯热入炉轧制线直接燃烧,以减少金属和提高生产力。
不断增加,水,电和能源的使用管理
钢铁工业是一个高耗能产业,以确保公司,德国钢铁正常运作继续增加,因为水,电和其他能源使用管理。
为近年来德国钢铁电力部门,增加权力有限度的,电网,电力需求增加峰值避免电力,生产和技术部门的情况,采取了“高峰负荷转移,高峰负荷移动电力“电力监管管理措施,以管理各种动力单元。并发出“在旱季加强节约用电管理”,其中要求对用电负荷各单位及时调整采取限电措施,并进行有限的电力工作意外。在按照电力部门的同时,“要增加需求方管理,优化用电”的原则,做好工作,“高峰负荷转移,转移高峰负荷功率”工作,提高电力负荷率;增加夜班生产组织,提高夜间-生产负荷,生产经营单位要做到“不增加电费的增加,没有功率输出增加,”各种非压缩的电力生产,不影响有权暂停生产电力设备,有效节省系统电源。
对保险公司的流畅的线条和生产成本的优化过程中,公司举办了“特殊烧结生产的组织将”发展生产的组织措施。经过一系列措施已经实施,以及烧结过程改进工段,烧结每单位产量的能耗由2005年60.9kWh下降到目前的52.37kWh。
据了解,在3号高炉2004年德国钢铁产量与一点〇万千瓦球迷装备,是该公司的第三大能源消耗设备。入夏以来,作为该系统原有的机械性能,特点,操作球迷难以匹配的高功率运行供气,能源浪费,导致其中,生产部门制定了一系列措施。在确保该请求使用风控制在对经济6200kW风机高炉操作。因此,每天节省了约3000〜六○○○千瓦时,可以节省电费9〜一十八万千瓦时,相当于电力3.5〜70万元。
通过加强引水管理,德国钢铁生产采取补救措施,提高水的循环率,同时提高运行,采取下降,泄漏和检查,发现上述通知的单位,要求整改。并通过对制冷设备的新周期,出2 × 3MW的发电机设备的循环冷却水,使现有设备的冷却效率,减少新水的加入量。
年,2〜3个月,就在加热新技术全新建成使用后,工作效率下降轧制公司高炉大修,供热效率,通过难民署,机时产量明显提高。在生产出现冷,加入了由焦炉煤气焦炉造成短缺的矛盾,面临着生产技术司和电机工程对各种空白焦炉用于详细的调查和分析,有关天然气开发装置气体大量的组织措施,平衡共同焦炉煤气利用的协调。同时,公司(子公司)氧气工厂和生产技术部共同氮利用调查各单位的协调,并发展了合理使用氮,需要相应的措施落实到每个分支氮平衡使用。
通过节能和能源系列,在工艺改进节能措施的实施。德国钢目前已达到“国家钢铁产业政策,”能源消耗指标要求,并建议在2008年前,将每吨钢材的淡水消耗量减少到6吨。将燃气-蒸汽涡轮发电项目投产,自发电能力将达到70%,总耗电量为实现煤气,蒸汽,所有的回收,将在生产制造过程中产生的二次能源的充分利用。
完善下,德国钢铁的前提下的能源管理系统还将建立发展循环经济的机制为基础的钢铁企业为核心进行清洁生产
,在建立全过程的闭环控制系统以实现对切实转变经济增长的目的,可持续发展与资源,能源综合利用建设资源型企业集中。06.9.29
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