The utility model provides an exhaust gas treatment system, which can dehumidify the pretreated exhaust gas without additional equipment cost, including a pretreatment unit, a zeolite runner, a plate heat exchanger, a catalytic burner and a chimney. The exhaust gas treated by the pretreatment unit is blown into the zeolite runner through the main process fan, and the exhaust gas can be discharged through the chimney and the desorbed air can be removed. The exhaustible gas is introduced into the plate heat exchanger for preheating and is heated by an auxiliary heating device. The high temperature desorption gas is introduced into the zeolite runner. The concentrated organic waste gas adsorbed and desorbed by the zeolite runner is blown into the plate heat exchanger through a CO fan. The plate heat exchanger preheat treatment is applied to catalytic combustion in the catalytic burner to generate clean gas and then into the plate heat exchanger. The heat is recovered and discharged through the chimney. The clean gas is put into the front end of the zeolite runner. The clean gas and the waste gas treated by the pretreatment unit are blown into the zeolite runner through the main process fan.
【技术实现步骤摘要】
一种废气处理装置
本技术涉及废气预处理
,具体为一种废气处理系统。
技术介绍
在实际工程应用中,对于中低浓度的VOCs(volatileorganiccompounds,挥发性有机物)污染控制,主要有吸附、催化燃烧、光降解、等离子体技术、直接燃烧等等,采用转轮吸附加催化燃烧被认为是一种经济有效的治理技术,也已成功应用到了工业废气的VOCs治理中。由于沸石转轮中沸石的吸水性,导致沸石转轮设备在高湿度环境下对废气中有机成分吸附性能的大幅度下降,从而导致有机废气排放超标。目前,发现在废气湿度高于80%时,沸石转轮对废气中有机成分的吸附性能将会呈现较大幅度的降低。因此,有机废气预处理中湿度的控制也十分重要。目前市场上,大部分厂家忽略了前处理中对于湿度的控制。这就可能造成在部分条件下,废气相对湿度较高,从而导致有机废气的去除率不达标。甚至于由于部分厂家在工艺设计中的不合理,在含有转轮的工艺前端设置了水洗塔,这无疑是人为的造成了废气中相对湿度的上升。公告号为CN206587570U的中国技术专利中通过表冷器的采用,对预处理后的废气进行降湿处理,然而其也额外增加设备成本。 ...
【技术保护点】
1.一种废气处理系统,包括顺序布置的预处理单元、沸石转轮、板式换热器、催化燃烧器、烟囱,所述预处理单元通过主工艺风机与所述沸石转轮进气口连接,所述沸石转轮出气口与所述烟囱连接,所述沸石转轮与所述烟囱之间还连接有脱附风机,所述脱附风机与所述板式换热器连接,所述板式换热器通过辅助加热装置与所述沸石转轮连接,所述沸石转轮废气排放口还通过CO风机与板式换热器连接,所述板式换热器与所述催化燃烧器往复连接,所述板式换热器直接与所述烟囱连接,其特征在于:所述板式换热器还直接与所述预处理单元输出端连接。
【技术特征摘要】
1.一种废气处理系统,包括顺序布置的预处理单元、沸石转轮、板式换热器、催化燃烧器、烟囱,所述预处理单元通过主工艺风机与所述沸石转轮进气口连接,所述沸石转轮出气口与所述烟囱连接,所述沸石转轮与所述烟囱之间还连接有脱附风机,所述脱附风机与所述板式换热器连接,所述板式换热器通过辅助加热装置与所述沸石转轮连接,所述沸石转轮废气排放口还通过CO风机与板式换...
【专利技术属性】
技术研发人员:吕柏林,陈义,高军军,黎鹏,邱霞,周德亚,
申请(专利权)人:江苏中电创新环境科技有限公司,
类型:新型
国别省市:江苏,32
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