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陶瓷过滤机是目前国内较为新型的固液分离设备。结合秦岭公司陶瓷过滤机在使用过程中的定期点检,分析了常见故障以及故障的解决方法。深入地探讨了陶瓷过滤机的操作使用与维护,可为设备维修人员更好地维护、管理陶瓷过滤机提供参考。 相似文献
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株洲冶炼厂试化室仪表组 《金属材料与冶金工程》1976,(2)
我厂湿法炼锌中,对两段浸出后的矿浆(浓泥) 采用两次过滤的方法:先用框式过滤机过滤,然后用圆盘过滤机过滤。圆盘过滤机内的矿浆液面过去是由人工操作控制,因圆盘过滤机的容积较小,液面不易稳定在适当的水平上,操作频繁,稍不注意就会满液造成金属损失或液面过低 相似文献
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本文介绍了陶瓷过滤机的结构,阐述了陶瓷过滤机的的工作原理,分析了影响陶瓷过滤机脱水效果的因素、陶瓷过滤机常见故障的原因,提出了提高陶瓷过滤机过滤效果的措施。 相似文献
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两起陶瓷过滤机CN^-外溢事故的分析、处理 总被引:1,自引:0,他引:1
陶瓷过滤机是一种新型过滤设备,遂昌金矿有限公司率先在黄金行业使用该设备处理全泥氰化尾矿,年产生经济效益为20多万元。但由于对其性能不熟悉,引发了两起因使用陶瓷过滤机而引起的CN^-外溢事故。通过事故分析,指出了设备的设计缺陷,细化了操作细则,借以与同行交流。 相似文献
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立盘过滤机过滤铝土矿正浮选精矿的试验研究 总被引:2,自引:0,他引:2
介绍采用小型立盘过滤机对铝土矿正浮选精矿的过滤试验,利用Minitab软件对过滤的运行时间、进料浓度、真空度及过滤机产能试验数据进行多元回归分析,试验取得较好效果。与生产中使用的新型陶瓷圆盘真空过滤机相比,其滤饼含水量和滤液浮游物含量两项过滤指标相当,产能提高,采用无纺布过滤精度较高,在相同过滤面积条件下,设备价格低于陶瓷圆盘真空过滤机20%以上。 相似文献
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Wet-process phosphoric acid plants produce about 4.5 tons of gypsum for each ton of fertilizer (P2O5 equivalent). About 33 million tons of gypsum are produced at phosphoric acid plants in the United States each year, and about 330 million tons are contained in existing stockpiles. Although most of the uranium initially present in phosphate rock is dissolved when the rock is acidulated to produce phosphoric acid, a fraction of it remains undissolved and the gypsum contains 0.03 to 0.08 lb of uranium per ton. Uranium concentrations in filter cakes produced by the hemihydrate process are significantly higher (as much as 0.2 lb/ton). This material hydrates to gypsum in the wastepile and most of the uranium becomes readily soluble in the process; the concentration of insoluble uranium in the hydrated cake is about the same as that in filter cake produced by the dihydrate process. Even at these low concentrations, the gypsum produced at phosphoric acid plants each year contains 1 to 2 million lb of uranium, and the stockpiled gypsum may contain a total of 10 to 20 million lb.Economical recovery of uranium from gypsum appears very unlikely in the foreseeable future. The losses to the filter cake, however, can possibly be reduced by operating the phosphoric acid plant under conditions that maximize uranium dissolution during rock acidulation. Studies of this problem showed that the major variable affecting the distribution of uranium between phosphoric acid and gypsum during phosphoric acid manufacture was the redox potential of the slurry during acidulation. Other variables affecting the uranium distribution included rock size, digestion temperature, and concentrations of excess sulfuric acid and fluoride. 相似文献
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本文介绍了振打装置的不合理运行对除尘系统的危害,提出了制定振打装置最佳运行制度的基本原则,阐述了振打周期对除尘效率的影响及振打加速度的大小与极板上粉尘脱落率的关系。通过维护及检修使振打系统处于最佳工作状态。 相似文献
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为了钢铁工业节能减排、降低水污染和吨钢耗水量,进行了转炉炼钢连铸冷却水过滤器技术的研发,成功开发了一种以多孔PVC陶瓷复合管为过滤元件的过滤器装置。对由多孔PVC陶瓷复合管过滤器过滤的污泥进行检测,可知多孔陶瓷复合过滤管具有很好的分离效果。检测过滤前后的水质,发现过滤后水的浊度和悬浮物含量显著降低,水质达到指标要求。通过工业试验研究和近3年的实际应用,确定了多孔PVC陶瓷复合过滤设备的最佳操作条件和反冲洗条件。 相似文献
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Direct phase transformation of flue gas desulfurization gypsum in hot salt solution at atmospheric pressure was investigated. The effects of temperature, salt species, salt concentration, solids content, pH and modifier were examined. The crystals obtained under different conditions and solubility of calcium sulfate in contact with solid gypsum were also determined, α-Calcium sulfate hemihydrate crystals of stubby columnar shape and regular pentahedral sides were obtained under the following conditions: salt concentration 20%-30%, operation temperature 95-100℃, solids mass content in the slurry 10%-30% and neutral pH. Thermodynamic analysis revealed that phase transformation of calcium sulfate dihydrate to α-calcium sulfate hemihydrate occurs because of the difference in solubilities between the two solid gypsum phases in this system. 相似文献
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《Baosteel Technical Research》2010,(2):7-12
The research background and technical features of Baosteel sintering flue gas desulphurization(FGD)—swirl-jet-absorbing wet limestone-gypsum sintering FGD technology,process and equipment are introduced in this paper.Main contents and achievements of the pilot experiment and the engineering practice of Baosteel FGD are analyzed and discussed systematically.Past engineering practice experiences indicate that Baosteel FGD has the following merits:wide applicability to sintering flue gas features,such as frequently changing temperatures,unstable SO2 concentration,intensively fluctuating flow rates,etc.,high pollutants removal efficiency,low investment and energy consumption;stable and reliable operation,utilizable byproduct(gypsum),etc.It indicates that Baosteel sintering FGD is of extensive application value for the FGD of large and medium-scaled sintering machines. 相似文献
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深锥浓密机的面积或占地大小主要由其固体通量决定。通过量筒静态沉降实验,计算得到深锥浓密机固体通量,分析了絮凝剂单耗、料浆浓度对深锥浓密机固体通量的影响,得到了两种因素对深锥浓密机固体通量的影响规律。结果表明,尾矿在5~30 g·t?1的絮凝剂单耗下,基本呈现二次函数关系;料浆的固相质量分数为6%~26%时,固体通量呈现先增大后减小的趋势,与实验所得的规律相契合。通过对絮凝剂单耗和料浆浓度耦合效应下的固体通量方程回归分析,得到三者之间的数学关系,进而确定二者对固体通量的贡献为:料浆浓度>絮凝剂单耗。结合絮凝剂及料浆浓度对固体通量的影响分析,总结了絮凝剂单耗和料浆浓度贡献值不同的原因。最后,结合单因素和耦合条件下的数学方程,对深锥浓密机的设计和运行提出工程建议。在深锥浓密机运行过程中,需要优先保证料浆浓度,其次是絮凝剂单耗。 相似文献
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氧化铝种子过滤工序的立盘过滤机经过生产运行 ,存在拉杆易断、扇型板易变形、调整装 置易损坏、维修工作量大等问题,通过对其改进,提高了设备的可开动率,减少了备件更换量。 相似文献
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常规搅拌浸出工艺投资大、能耗高、成本高。为此,采用矿石分级处理、工业余热利用、高效浓密进行澄清与洗涤,分别取代了矿石细磨、矿浆加热以及浸渣压滤工艺。试验结果表明,分级处理技术使得泥质矿浆-0.074mm达到81.33%,工业余热利用使得矿浆在50min内反应温度提高到60℃,高效浓密技术实现了矿浆的浓缩、澄清、洗涤三大功能。三项综合节能技术的应用,使浸出系统的总装机容量下降了33%,投资额下降了68.5%,成本下降了35.3%。通过对搅拌工艺的优化研究,拓展了搅拌浸出的应用范围。 相似文献