智能煤气排水器在特大型高炉煤气管道的应用

煤气排水器是保障煤气管道安全运行的重要附属设备,一旦发生煤气泄漏会导致严重安全事故,为追求煤气排水器的安全可靠,更多的企业开始使用智能煤气排水器。至2021年底,首钢京唐公司完成了炼铁区域79%高炉煤气管道排水器的智能化改造,介绍了首钢京唐公司高炉煤气管道智能煤气排水器的结构及工作原理,评述了该型排水器的优点,评估了作业风险值,分析了存在的问题,并给出了改进建议。     

储灰室在煤气排水器中的应用

目前使用的排水器普遍存在着一室容积太小,易造成排水器冷凝水管堵塞,清理难度大问题.针对这一缺陷,在现运行的煤气排水器结构不变的基础上进行自主改装,增加“储灰室”,来增加煤气排水器一室的容积,有效防止排水器堵塞.     

智能煤气排水器的应用与煤气排水系统的优化

传统煤气排水器存在水封易被击穿、排水器堵塞及能源浪费等缺点,而智能排水器与传统排水器相比更加安全、可靠,同时可节约蒸汽等能源消耗。鉴于此,在分析介绍智能煤气排水器基本原理的基础上,对其智能化系统展开具体阐述。经应用实践证明,应用智能煤气排水器对煤气水封水位、排水器温度、CO等进行监测对煤气系统的安全运行有着积极影响,可减少煤气泄漏事故的发生。     

智能煤气排水器在鞍钢的利用

煤气排水器用于煤气输送过程中排出煤气中存在的机械水与冷凝水俗称"水封".在我国钢铁行业中,曾多次发生排水器泄漏煤气引起的恶性事故.阐述了鞍钢智能化排水器的工作原理和操作应用,通过对排水器实施网络监管,确保了鞍钢煤气管网安全平稳运行.     

防泄漏煤气排水器性能分析

利用杠杆式防泄漏煤气排水器密封装置的力学模型,提出了防泄漏煤气排水器的基本不等式,并以此对防泄漏排水器的性能指标进行了计算和分析。     

煤气管道排水器节能改造

针对焦炉煤气管道排水器使用过程中耗水量大、耗蒸汽量大、运行维护工作量大的问题,通过在排水器中增加过压保护器、用自控型电伴热带取代蒸汽伴热保温等改造,实现了煤气管道正常运行时,不再向排水器注入补给水,排水器运行平稳,减少了污水排放,取得了较好的经济效益和社会效益。     

煤气管道排水器防煤气漏装置

专利号:ZL01239576.5专利权人:宝山钢铁股份有限公司设计人:陈阿威陆定国吴金伟付金华王汉忠本实用新型涉及一种煤气管道排水器防煤气泄漏装置。它包含有排水器的水封管和水封管出口的排水管,水封管内安置一个浮筒,浮筒中心有一个芯筒,芯筒的上端有出水孔连通排水管,而芯筒底面有铰链式阀板。本实用新型能有效防止从排水器泄漏煤气,使用安全可靠,运行维护方便。煤气管道排水器防煤气漏装置$宝山钢铁股份有限公司科技发展部     

《煤气排水器安全技术规程》探讨

结合近几年来冶金煤气排水器泄漏造成的人员中毒死亡事故频发,为了加强煤气排水器安全管理,进一步规范和明确煤气排水器安全技术要求,管控要点,应急管理部于2018年5月22日发布了AQ7012-2018《煤气排水器安全技术规程》,并于2018年12月1日实施。针对此规范,结合冶金企业实际状况,对规范进行了探讨性分析,提出补充建议。     

玻璃钢排水器在冶金企业煤气系统中的应用

分析了普通铁制筒形排水器存在的缺陷，研制出适合煤气管道使用的玻璃钢排水器，运行效果良好。     

防泄漏煤气排水器安全应用的探讨

介绍了煤气排水器及防泄漏装置的工作原理,分析了正、反向密封型防泄漏煤气排水器在排水和防泄漏功能方面的优缺点,在此基础上对防泄漏排水器的安全应用进行了探讨,并提出了相关应对措施.     

Improvement in casting practice by controlling the drainage rate and hearth liquid level to develop an efficient casthouse management practice in blast furnace

The key to excellent casthouse operation are low cost, high productivity, dry hearth and high casting rate while minimising the consumable material. The stable blast furnace operation requires proper control of drainage rate of liquid hot metal and slag from hearth. The productivity of blast furnace can be effectively increased if drainage rate is considerably increased. If the drainage rate is controlled, the periodic tapping of hot metal and slag from hearth can be made effective. This paper highlight the improvement made in casting practice by controlling the hearth liquid level in blast furnace. The improvements have made significant change in casthouse management. It is well demonstrated that various casthouse operations have migrated from one regime of operation to another regime and various consumable items are significantly reduced. The importance of increasing the drainage rate in improving the productivity of blast furnace is explained in details.     

环缝洗涤塔下段备用排水系统的改进

介绍了高炉煤气净化环缝洗涤塔下段备用排水系统工艺中常出现的排水管路堵塞及系统中的各阀门操作失灵等故障及原因,对此系统改造,保证了备用排水系统的作用,为生产稳定运行奠定了基础。     

Handedness assessment inventory

A 6 year old boy with a large atrial septal defect, partial anomalous pulmonary venous drainage and unrecognized anomalous insertion of the inferior vena cava into the left atrium had cyanosis after closure of the atrial defect. Repeat study revealed direct drainage of the inferior vena cava into the left atrium with moderate arterial oxygen desaturation. At repeat operation an unusual positioning of the inferior vena cava was seen. After reopening of the atrial defect, the pulmonary venous and systemic venous drainage anomalies were identified. A Dacron patch was inserted so as to divert flow to the proper atrium. Repeat catheterization 3 months after operation revealed a normal heart with no obstruction; arterial oxygen saturation was normal. The child has continued to do well 3 years after operation.     

水厂含油排水处理系统的改造

宝钢中央水处理厂含油排水处理系统于１９８５年建成投运，由于设计、设备上的一些问题，经常影响正常生产运行。针对存在的这些问题，采取了加设导流板、超越管、改造排泥泵等措施。从而使该系统更趋于合理，确保了安全稳定运行，减少了茨耗。     

厂区排水管网设计的几个细节问题

厂区排水管网设计应从细节着手,这些细节可能是感悟,也可能是经验,是针对实际运行过程中存在问题的解决办法,将这些细节问题归纳起来加以应用,使厂区排水管网的设计更加严谨、更加合理、更加完善。     

气驱排渗技术及其在膏体尾矿筑坝工程的应用

果郎沟尾矿库为甲玛铜多金属矿二期工程配套尾矿库,采用初期坝+膏体上游法堆坝形式,实际运行过程中存在尾砂渗透系数低、不固结,且坝体浸润线埋深仅10 m左右等问题.华泰龙矿业公司采用气驱排渗技术,在坝体均匀布设特殊结构的竖直和水平排渗管,采用高压气驱和重力自流的联合排渗方式,大大提高了坝体排渗效率,浸润线埋深快速降低至20...     

露天矿凹陷排水泵站的设计应用

露天矿进入凹陷开采后，必然面对如何排水的问题。我矿结合矿山采掘工作面的实际情况，设计出组合式浮船泵站，解决了雨季矿山凹陷排水问题，保证了采区生产的正常进行。     

Spontaneous rupture of the kidney

Two cases of spontaneous rupture of the kidney have been presented where no underlying disease process could be identified. In one, evacuation and drainage of the haematoma alone affected a cure. It is suggested that operation is practically always necessary to solve the clinical problem. The proper treatment seems to be nephrectomy or evacuation and drainage of the haematoma.     

Variation in labial shoulder geometry of metal ceramic crown preparations: a finite element analysis

BACKGROUND: The anatomic variation of the frontal sinus and frontal recess can create both a diagnostic and therapeutic challenge. Most cases of frontal sinus disease can now be treated by endoscopic approaches. For refractory cases or those with severe pathology, the microscopically controlled drainage (MCD) operation has at times been successful and spared the patient the morbidity of an external approach. The aim of this study was to evaluate microscopically controlled frontal sinus surgery in these difficult cases. MATERIAL AND METHODS: Prospective analysis was performed on the efficacy of MCD in patients for whom endoscopic sinus surgery had failed or in primary cases with severe pathology or unfavorable anatomy. The technique employs a self-retaining endonasal retractor and a diamond bur under microscopic visualization to remove solid bone (frontal spine) obstructing the sinus drainage and allow a wide opening of the frontal recess while causing minimal mucosal damage. Unilateral drainage (extended frontal sinus drainage operation), and in some cases bilateral drainage (median drainage procedure) is employed. RESULTS: With an average of 23 months of follow-up, over 90% of patients were either free of symptoms or substantially improved after the MCD procedure. Three patients required revision surgery (extend the opening into a median drainage procedure) for adequate relief of symptoms. CONCLUSIONS: The MCD procedure is highly successful in the treatment of frontal recess disease, particularly in those cases of severe pathology or difficult anatomy. It may be used in those cases refractory to standard endoscopic sinus surgery where an external approach and frontal sinus obliteration are contemplated. As with endoscopic sinus surgery, precise knowledge of the frontal recess and neighboring landmarks is critical, and adequate drainage with minimal mucosal disruption should be the goal.     

Cholecystectomy with intraperitoneal drain. Presence and significance of conjugated bilirubin in the drainage fluid

The content of conjugated bilirubin in the drainage fluid of 85 patients, operated upon consecutively with cholecystectomy and intraperitoneal drain for nonacute gallbladder pathology was measured by the adapted method of Jendrassik and Grof. The measured amounts varied from 0 to 755 micromol. A weak correlation was found between the concentration of conjugated bilirubin and the total amount of drainage fluid (r = 0.37). In the majority of patients the evacuated amounts of conjugated bilirubin corresponded to the content of bilirubin in a few milliliters of hepatic bile. In 10% of the patients there were however greater amounts of conjugated bilirubin in the drainage fluid. Greater amounts of conjugated bilirubin were significantly more often evacuated from patients operated upon by surgeons with less than 3 years of surgical experience compared to patients operated upon by more experienced surgeons. The amount of conjugated bilirubin in the drainage fluid was not significantly correlated with operative blood loss, dryness of the operative field at the end of the operation or iatrogenic perforation of the gallbladder during operation. Higher (however not significant) temperatures and bilirubin levels in serum were observed in patients with greater amounts of conjugated bilirubin in the drainage fluid. Increased amounts of conjugated bilirubin in the drainage fluid were not significantly associated with increased postoperative morbidity. Two of the patients with large amounts of conjugated bilirubin in the drainage fluid were reoperated because of bile leakage/abscess but the remaining patients had no serious complication, which could be a result of efficiency of the intraperitoneal drain.