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沼气的出现脱硝设施设备采取脱硝速率低的其原因定量分析

1.脱硫效率低的原因分析:

1. Cause analysis of low desulfurization efficiency:
(1)设计因素
(1) Design factors
设计是基础,包括L/G、烟气流速、浆液停留时间、氧化空气量、喷淋层设计等。应该说,目前国内脱硫设计已经非常成熟,而且都是程序化,各家脱硫公司设计大同小异。
Design is the basis, including L/G, flue gas flow rate, slurry retention time, oxidation air volume, spray layer design, etc. It should be said that at present, domestic desulfurization design has been very mature, and all of them are programmed, and the design of each desulfurization company is much the same.
(2)烟气因素
(2) Flue gas factor
其次考虑烟气方面,包括烟气量、入口SO2浓度、入口烟尘含量、烟气含氧量、烟气中的其他成分等。是否超出设计值。
Secondly, consider the flue gas, including flue gas volume, inlet SO2 concentration, inlet soot content, flue gas oxygen content, and other components in the flue gas. Whether the design value is exceeded.
(3)脱硫吸收剂
(3) Desulfurization absorbent
石灰石的纯度、活性等,石灰石中的其他成分,包括SiO2、镁、铝、铁等。特别是白云石等惰性物质。
Purity and activity of limestone, and other components in limestone, including SiO2, magnesium, aluminum, iron, etc. Especially inert materials such as dolomite.
(4)运行控制因素
(4) Operation control factors
运行中吸收塔浆液的控制,起到关键因素。包括吸收塔PH值控制、吸收塔浆液浓度、吸收塔浆液过饱和度、循环浆液量、Ca/S、氧化风量、废水排放量、杂质等。
The slurry control of absorption tower plays a key role in operation. It includes PH value control of absorption tower, concentration of absorption tower slurry, supersaturation of absorption tower slurry, circulating slurry volume, Ca/S, oxidation air volume, wastewater discharge, impurities, etc.
(5)水
(5) Water
水的因素相对较小,主要是水的来源以及成分。
The factor of water is relatively small, mainly the source and composition of water.
(7)其他因素
(7) Other factors
包括旁路状态、GGH泄露等。
Including bypass status, GGH leakage, etc.
2.改进措施及运行控制要点
2. Improvement measures and operation control points
从上面的分析看出,影响FGD系统脱硫率的因素很多,这些因素相互关联,以下提出了改进FGD系统脱硫效率的一些原则措施,供参考。
It can be seen from the above analysis that there are many factors that affect the desulfurization efficiency of FGD system, and these factors are interrelated. Some principles and measures to improve the desulfurization efficiency of FGD system are proposed for reference.
(1)FGD系统的设计是关键。
(1) The design of FGD system is the key.
根据具体工程来选定合适的设计和运行参数是每个FGD系统供应商在工程系统设计初期所必须面对的重要课题。特别是设计煤种的问题。太高造价大,低了风险大。
It is an important task for each FGD system supplier to select appropriate design and operation parameters according to the specific project at the initial stage of engineering system design. Especially the design of coal type. Too high cost, low risk.
特别是目前国内煤炭品质不一,供需矛盾突出,造成很多电厂燃烧煤种严重超出设计值,脱硫系统无法长期稳定运行,同时对脱硫系统造成严重的危害。
Especially at present, the domestic coal quality is different, and the contradiction between supply and demand is prominent, which causes many power plants to burn coal types that seriously exceed the design value, and the desulfurization system can not operate stably for a long time, at the same time, it causes serious harm to the desulfurization system.
(2)控制好锅炉的燃烧和电除尘器的运行,使进入FGD系统的烟气参数在设计范围内。必须从脱硫的源头着手,方能解决问题。
(2) The combustion of the boiler and the operation of the electrostatic precipitator shall be well controlled so that the flue gas parameters entering the FGD system are within the design range. We must start from the source of desulfurization to solve the problem.
(3)选择高品位、活性好的石灰石作为吸收剂。
(3) Limestone with high grade and good activity is selected as absorbent.
(4)保证FGD工艺水水质。
(4) Ensure the quality of FGD process water.
(5)合理使用添加剂。
(5) Use additives reasonably.
(6)根据具体情况,调整好FGD各系统的运行控制参数。特别是PH值、浆液浓度、CL/Mg离子等。
(6) Adjust the operation control parameters of FGD systems according to specific conditions. Especially PH value, slurry concentration, CL/Mg ion, etc.
(7)做好FGD系统的运行维护、检修、管理等工作。
(7) Do a good job in the operation, maintenance, repair and management of FGD system.
以上就是为大家介绍的有关沼气脱硫的详细的介绍,希望对您有所帮助.如果您有什么疑问的话,欢迎联系我们.我们将以的态度,为您提供服务http://taruoka.com
The above is a detailed introduction to biogas desulfurization, and we hope it will be helpful to you. If you have any questions, please contact us. We will provide services for you with our attitude http://taruoka.com

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