【摘要】：燒結(jié)生產(chǎn)會(huì)產(chǎn)生的含熱能廢氣,利用這些廢氣進(jìn)行蒸汽發(fā)電,就是把鋼廠燒結(jié)機(jī)所產(chǎn)生的冶煉煙氣余熱回收利用,生產(chǎn)中壓飽和蒸汽,配套飽和蒸汽輪機(jī)組,抽取供熱發(fā)電。對(duì)燒結(jié)機(jī)煙氣的回收利用,一方面減少了對(duì)大氣環(huán)境的污染,另一方面,也節(jié)約了生產(chǎn)成本,其所產(chǎn)生的蒸汽可進(jìn)行對(duì)外供熱供電,節(jié)省了企業(yè)的生產(chǎn)成本,節(jié)能減排。通過(guò)對(duì)燒結(jié)工藝系統(tǒng)和利用燒結(jié)廢棄氣體熱能進(jìn)行蒸汽發(fā)電系統(tǒng)進(jìn)行深入研究,分析并完善利用燒結(jié)廢棄氣體熱能進(jìn)行蒸汽發(fā)電集散控制系統(tǒng)中存在的不符合實(shí)際生產(chǎn)任務(wù)的缺陷,深入研究分析日常工作中具體的生產(chǎn)狀況,發(fā)現(xiàn)設(shè)備或流程中的缺點(diǎn),并通過(guò)改進(jìn)優(yōu)化控制系統(tǒng)等方面,最終提高發(fā)電效率。同時(shí)利用實(shí)際工作流程和設(shè)備選用的情況對(duì)工藝系統(tǒng)進(jìn)行系統(tǒng)的研究,優(yōu)化系統(tǒng)的控制系統(tǒng),以實(shí)現(xiàn)最優(yōu)的調(diào)節(jié)控制系統(tǒng)。通過(guò)對(duì)蒸汽發(fā)電雙壓系統(tǒng)、單壓系統(tǒng)、閃蒸系統(tǒng)和補(bǔ)燃系統(tǒng)四種蒸汽發(fā)電系統(tǒng)的研究以及熱力學(xué)和經(jīng)濟(jì)性的計(jì)算,發(fā)現(xiàn)對(duì)于企業(yè)雙壓系統(tǒng)的經(jīng)濟(jì)價(jià)值和熱力特性最好,污染物較少,是最合理的設(shè)計(jì)方案。分析了控制系統(tǒng)中的一些特性,對(duì)廢氣熱能發(fā)電制定了自動(dòng)控制程序,努力對(duì)自控進(jìn)行升級(jí),實(shí)現(xiàn)最優(yōu)。通過(guò)分析當(dāng)前技術(shù)條件下燒結(jié)工藝過(guò)程,對(duì)用廢氣熱能發(fā)電過(guò)程中需要解決的困難和難點(diǎn)進(jìn)行分析,努力改進(jìn)生產(chǎn)過(guò)程,提高生產(chǎn)效率以達(dá)到更好的經(jīng)濟(jì)價(jià)值。
[Abstract]:The waste gas containing heat energy produced by sintering production can be used to generate electricity by steam, that is, to recycle the waste heat of smelting flue gas produced by sintering machine in steel plant, to produce medium pressure saturated steam, to set up saturated steam turbine unit, and to extract heat for power generation. On the one hand, the recovery and utilization of the flue gas from sintering machine can reduce the pollution to the atmosphere, on the other hand, it also saves the production cost. The steam produced by it can be used for external heating and power supply, thus saving the production cost, energy saving and emission reduction of the enterprise. Through the deep research on the sintering process system and the steam power generation system using the waste gas heat energy of sintering, This paper analyzes and perfects the defects existing in the distributed control system of steam power generation by using the waste gas heat energy of sintering, which does not conform to the actual production task, deeply studies and analyzes the concrete production situation in the daily work, and finds out the shortcomings in the equipment or process. And through improving the optimization control system and other aspects, ultimately improve the efficiency of power generation. At the same time, the process system is studied systematically by using the actual work flow and equipment selection, and the control system of the system is optimized in order to realize the optimal regulation control system. Through the study of four steam power generation systems, namely, double pressure system, single pressure system, flash steam system and supplementary combustion system, as well as the calculation of thermodynamics and economy, it is found that the economic value and thermodynamic characteristics of the double pressure system are the best for enterprises. Less pollutants, is the most reasonable design. Some characteristics of the control system are analyzed, and an automatic control program is made for the waste gas thermal power generation, and the automatic control is upgraded to achieve the optimum. By analyzing the sintering process under the current technical conditions, the difficulties and difficulties needed to be solved in the process of generating electricity with waste gas heat are analyzed, and the production process is improved and the production efficiency is improved to achieve better economic value.
【學(xué)位授予單位】：華北理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TP273;TM617

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