基于多孔介質(zhì)散射的濾筒脈沖噴吹清灰特性研究
[Abstract]:The filter type dust collector is unable to purify the dust, and has the advantages of good cleaning effect, large amount of gas treatment, long life of filter bag, small maintenance workload, safe and reliable operation, etc. It has become one of the important ways of dust pollution control. In the application of filter dust collector, the quality of ash removal system is directly related to whether the dust collector can operate efficiently, safely and economically. However, there are still many problems to be studied and solved in engineering practice. Some of them have bad cleaning effect and the filter bag resistance is large; some of them are too strong to clear ash and damage the filter bag; some of them have uneven cleaning intensity and some filter materials are invalid which not only affects the ash cleaning effect but also increases the resistance of cloth bag and so on. Therefore, the quality of ash removal is directly related to the good operation of the dust collector, so filter dust removal technology is the decisive factor and one of the key technologies in the performance of dust collector. In this study, aiming at the problem of uneven cleaning of dust in filter dust collector and failure of cleaning of some filter materials, we developed foamed nickel porous media scatters, reticulated porous scatters, aluminum porous scatters, and used 蠁 325 脳 1000mm filter barrel to establish a pulse injection test bench. Through experiments and numerical simulation of porous media scatterers, the performance of filter drum dust remover during pulse ash cleaning is studied. The experimental results show that by installing different porous media scatters under the nozzle, the effective ash removal strength can be guaranteed and the uniformity of the peak pressure distribution of the side wall along the length of the filter tube can be effectively improved. All parts of the filter material have the same ash removal strength, which prevent the failure of the upper filter material caused by the traditional cleaning method and the damage of the lower filter material, and ensure the normal operation of the filter dust collector. The results are as follows: when there are no scatters, the peak pressure of the lower side is 1.61g / 1.72n 2.91KPa, and the peak of the pressure of the lower side is 1.600.20 / 1.37KPa. the peak value of the pressure on the lower side is 1.600.20 / 1.37KPa. in the stainless steel mesh scatterer, the peak value of the pressure on the foamed nickel porous media is 1.61g / 1.72 / 2.91KPA, respectively. The peak pressure of the lower side wall is 1.37 脳 0.51 ~ 1.01 KPA, the peak pressure of the middle and lower side wall is 1.58 ~ 0.59 ~ 1.13KPa. the peak value of the pressure of the lower side wall is 1.89g / 1.201.37KPa. the peak value of the pressure of the lower side wall is 1.89U 1.201.37kPa. the peak value of the pressure of the lower side wall is 1.37KPa. on the top of the perforated aluminum diffractor. Compared with no scatterers, the installation of porous media scatterers can obviously improve the pressure of the lower part of the filter tube, improve the homogeneity of ash removal in the direction of the length of the filter tube, prolong the service life of the filter tube, and improve the dust removal efficiency of the filter tube. At the same time, using the computational fluid dynamics software, the internal dust removal flow field of the filter drum dust collector without scatterer and with the porous media scatterer is simulated. The numerical simulation results show that the porous media scatterer is used. The homogeneity of the cleaning pressure of the inner wall along the length direction of the filter tube is better than that of the traditional ash cleaning method, which can improve the ash cleaning effect of the filter tube. At the same time, with the increase of porosity, the homogeneity of the distribution of the cleaning pressure along the inner wall along the length direction is increasing. This is consistent with the experimental results. The results show that the uniformity of the pressure distribution on the side wall of the filter pulse cleaning can be improved effectively by using the scattering device, and the results can be used for reference and reference to improve the performance of the dust cleaning system of the filter type dust collector.
【學(xué)位授予單位】:西南科技大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2017
【分類號(hào)】:X701.2
【相似文獻(xiàn)】
相關(guān)期刊論文 前10條
1 ;按壓差清灰的優(yōu)勢與不足[J];工業(yè)安全與環(huán)保;2001年07期
2 陳家天;使用化學(xué)清灰劑提高鍋爐熱效率[J];紡織學(xué)報(bào);1982年07期
3 門振鎰;張毓鈐;夏熾陽;;鍋爐清灰劑的功效和使用[J];環(huán)境保護(hù);1984年04期
4 王金泉;;鍋爐化學(xué)清灰劑通過鑒定[J];精細(xì)與專用化學(xué)品;1985年02期
5 陳名順;;鍋爐清灰劑的使用及其效果[J];化學(xué)工程與裝備;1986年03期
6 龔顯慶;;通用型鍋爐清灰劑的試制及其效果[J];浙江化工;1988年05期
7 滕益堅(jiān);吳艷;潘寒旭;趙忠保;;鍋爐清灰劑的研制和應(yīng)用[J];北京節(jié)能;1991年02期
8 梁福義;鍋爐化學(xué)清灰劑的應(yīng)用[J];中國井礦鹽;1993年02期
9 曹睿;楊勇;房江紅;;在線清灰技術(shù)在煉廠的應(yīng)用[J];資源節(jié)約與環(huán)保;2010年02期
10 班柳輝;陸堅(jiān);;延長除塵風(fēng)機(jī)清灰周期的措施[J];柳鋼科技;2011年05期
相關(guān)會(huì)議論文 前10條
1 王榮會(huì);萬雪如;張麗霞;;電除塵射流刷振清灰器的應(yīng)用[A];第十四屆中國電除塵學(xué)術(shù)會(huì)議論文集[C];2011年
2 王榮會(huì);萬雪如;張麗霞;;電除塵射流刷振清灰器的應(yīng)用[A];中國硅酸鹽學(xué)會(huì)環(huán)保學(xué)術(shù)年會(huì)論文集[C];2012年
3 ;環(huán)保“三清”(清灰、清堵、清粉)技術(shù)的應(yīng)用[A];2014京津冀鋼鐵業(yè)清潔生產(chǎn)、環(huán)境保護(hù)交流會(huì)論文集[C];2014年
4 陳康元;;聲波清灰機(jī)理及其在除塵設(shè)備中的應(yīng)用[A];第十一屆全國電除塵學(xué)術(shù)會(huì)議論文集[C];2005年
5 陳康元;萬榮輝;;聲波清灰機(jī)理及其在除塵設(shè)備中的應(yīng)用[A];中國硅酸鹽學(xué)會(huì)環(huán)保學(xué)術(shù)年會(huì)論文集[C];2007年
6 王勇;周炎;周岳鋒;姚宇平;;脈沖清灰系統(tǒng)選型的理論估算及試驗(yàn)[A];第十五屆中國電除塵學(xué)術(shù)會(huì)議論文集[C];2013年
7 譚瑞田;;聲波清灰技術(shù)在低低溫電除塵系統(tǒng)中的應(yīng)用[A];第十五屆中國電除塵學(xué)術(shù)會(huì)議論文集[C];2013年
8 徐平安;;脈噴袋除塵器清灰機(jī)理及技術(shù)分析[A];中國硅酸鹽學(xué)會(huì)環(huán)保學(xué)術(shù)年會(huì)論文集[C];2007年
9 韓仲琦;;袋除塵器的氣振清灰法[A];第四屆全國顆粒制備與處理學(xué)術(shù)會(huì)議論文集[C];1995年
10 王勇;周炎;周岳鋒;姚宇平;;脈沖清灰系統(tǒng)選型的理論估算及試驗(yàn)[A];第十五屆中國科協(xié)年會(huì)第9分會(huì)場:火電廠煙氣凈化與節(jié)能技術(shù)研討會(huì)論文集[C];2013年
相關(guān)重要報(bào)紙文章 前10條
1 高振波 劉秀雙;秦皇島分公司大興站首次應(yīng)用機(jī)器人清灰作業(yè)成功[N];石油管道報(bào);2009年
2 記者 陶琳;低頻聲波清灰技術(shù)新產(chǎn)品問世[N];中國冶金報(bào);2006年
3 本報(bào)記者 邊輯;憑借“小器”成大業(yè)[N];中華建筑報(bào);2006年
4 江蘇科行環(huán)境工程技術(shù)有限公司 顧亞東;脈沖袋式除塵器清灰系統(tǒng)設(shè)計(jì)探討[N];中國建材報(bào);2009年
5 遼寧中鑫自動(dòng)化儀表有限公司 譚瑞田;聲波清灰技術(shù)在水泥工業(yè)除塵中的應(yīng)用分析[N];中國建材報(bào);2008年
6 李焦明;聲波清灰技術(shù)的應(yīng)用 [N];中國建材報(bào);2002年
7 江蘇科行環(huán)境工程技術(shù)有限公司 顧亞東;影響脈沖袋式除塵器清灰效果的因素探討[N];中國建材報(bào);2009年
8 柯欣;弱爆炸波清灰器在我國首次開發(fā)成功[N];科技日報(bào);2003年
9 王俊杰;秦京分公司榮獲中國質(zhì)量協(xié)會(huì)QC成果一等獎(jiǎng)[N];石油管道報(bào);2007年
10 本報(bào)記者 李賀林;水泥半風(fēng)掃兼烘干生料粉磨技術(shù)邁上新臺(tái)階[N];中國建材報(bào);2007年
相關(guān)碩士學(xué)位論文 前10條
1 張寬;袋式除塵器脈沖噴吹清灰作用形成機(jī)制的數(shù)值模擬[D];東北大學(xué);2014年
2 趙霄強(qiáng);長袋脈沖袋式除塵器清灰壓力場及除塵流場的模擬分析[D];蘭州交通大學(xué);2015年
3 劉玉香;脈沖清灰袋式除塵器性能實(shí)驗(yàn)研究及仿真分析[D];南昌大學(xué);2015年
4 劉佳;聲波清灰技術(shù)聲場數(shù)值分析與仿真研究[D];東北大學(xué);2014年
5 堵光華;貫通濾袋除塵器沖刷自清灰效果實(shí)驗(yàn)研究[D];東北大學(xué);2014年
6 李倩倩;脈沖噴吹扁式方框?yàn)V筒除塵器清灰性能研究[D];西南科技大學(xué);2016年
7 鐘麗萍;脈沖袋式除塵器噴吹清灰性能工藝參數(shù)優(yōu)化試驗(yàn)研究[D];西安建筑科技大學(xué);2015年
8 李嵐溪;基于多孔介質(zhì)散射的濾筒脈沖噴吹清灰特性研究[D];西南科技大學(xué);2017年
9 呂娟;脈沖噴吹Φ160×6000mm長濾袋清灰性能[D];西南科技大學(xué);2017年
10 殷依華;非織造空氣過濾材料清灰性能研究[D];浙江理工大學(xué);2016年
,本文編號(hào):2169410
本文鏈接:http://sikaile.net/shoufeilunwen/boshibiyelunwen/2169410.html