共查询到20条相似文献,搜索用时 140 毫秒
1.
针对蒸汽煅烧炉进碱密封处漏碱情况严重的问题,对进碱密封结构进行分析、对比,选择出最佳改造方案,初步解决了进碱密封处大量漏碱的问题。 相似文献
2.
3.
4.
5.
6.
7.
8.
9.
10.
对自身返碱蒸汽煅烧炉返碱带制造及安装过程中存在的问题进行了阐述,并详细介绍了返碱带模具的设计及试用中取得的效果。 相似文献
11.
对产能为16万t/a丙烯酸酯装置水运期间的部分异常现象的起因、过程分析和解决措施进行阐述。力求通过这些问题的分析,达到经验上的相互交流,技术上的共同进步。 相似文献
12.
一种新的基于可拓理论的工业过程生产操作方法(英文) 总被引:1,自引:0,他引:1
To explore the problems of dynamic change in production demand and operating contradiction in production process, a new extension theory-based production operation method is proposed. The core is the demand requisition, contradiction resolution and operation classification. For the demand requisition, the deep and comprehensive demand elements are collected by the conjugating analysis. For the contradiction resolution, the conflict between the demand and operating elements are solved by the extension reasoning, extension transformation and consistency judgment. For the operating classification, the operating importance among the operating elements is calculated by the extension clustering so as to guide the production operation and ensure the production safety. Through the actual application in the cascade reaction process of high-density polyethylene (HDPE) of a chemical plant, cases study and comparison show that the proposed extension theory-based production operation method is significantly better than the traditional experience-based operation method in actual production process, which exploits a new way to the research on the production operating methods for industrial process. 相似文献
13.
中海炼化惠州炼油催化裂化装置开工正常以来,再生立管现场震动很大,装置加工量未达到设计要求,装置效益低。根据此现象分析了装置运行中存在的问题并查找原因,提出解决措施,从而提高了装置的经济效益,保证了装置平稳运行。 相似文献
14.
低温甲醇洗用来脱除变换气中C02、H2S及有机硫杂质,同时也脱除变换气中带人的饱和水,文章对低温甲醇洗工序开车过程中出现问题以及影响低温甲醇洗稳定运行的因素进行分析,提出了解决这类问题的办法。为装置的安、稳、长、满、优稳定运行提供了保障。 相似文献
15.
16.
某有机硅废水处理工程工艺调试过程中出现了预处理系统p H值调节不稳、油渣排除困难、絮凝沉淀固液分离困难,以及污泥处理系统调理剂投加位置不当、压滤机进泥缺少联锁控制等方面的问题,为解决这些问题,采取了增加或更改管道、设置联锁关系等措施进行改造。实际运行情况表明,改造后的系统提高了自动化程度和运行稳定性,降低了运行事故风险。 相似文献
17.
18.
19.
Modelling and parameter identification of complex dynamic systems/processes is one of the main challenging problems in control engineering. An example of such a process is clinker rotary kiln (CRK) in cement industry. In the prevailing models independently of which structure is used to describe the kiln's dynamics and the identification algorithm, parameters are assumed to be centralised and constant while the CRK is well known as a distributed parameter system with a strongly varying dynamic through time. In this work, the kiln's dynamic is described in the form of a state‐space representation with three state variables using a system of partial differential equations (PDE). The structure is chosen so that it can easily be embedded in classical state‐space control algorithms. The parameters of the PDE system are called operating functions since their numerical values vary with respect to different operating conditions of the kiln, to their position in the kiln, and through time. A phenomenological approach is also proposed in this paper to identify the operating functions for a given steady‐state operation of the kiln. The model is then used to perform a semi‐dynamic simulation of the process through manipulating main process variables. 相似文献
20.
在生产过程装置及工艺确定的前提下,操作方案恰当与否直接影响产品质量产量及物耗能耗。由于生产过程操作变量繁多且关系复杂,传统操作调节方法已不能满足操作优化需求。本文提出了基于可拓理论的智能操作优化方法以寻求最佳操作方案。通过建立操作条件、生产目标及约束条件的物元、事元模型,采用可拓性分析及可拓变换得到操作调节方案,设定操作变量给定值形成操作方案集,并进行筛选评价得到最佳方案。结合某企业高密度聚乙烯(HDPE)串级反应过程生产操作验证了其有效性,为过程工业操作条件优化调节提供了新思路。 相似文献