CN110302925A - 内循环自排渣微排放喷房系统 - Google Patents
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Abstract
一种内循环自排渣微排放喷房系统,包括喷枪、支架、工件、喷房以及PLC控制系统,喷房两侧近喷房门口设有送风口和水雾喷口,喷房门口对侧设有离心风机,离心风机出风口连水气分离装置,水气分离装置下方设有废水池,水气分离装置和废水池设置在封闭的箱体内,废水池上通过管路连风机,风机连曝气箱,曝气箱连光氧催化装置,光氧催化装置连活性炭处理装置,活性炭处理装置连VOC传感器,VOC传感器接排放口。本发明结构简单,涂装企业改装成本低,即节省费用,又能符合环保要求。本发明还通过废气、废水的循环回收利用,降低耗能,减少废物处理量,减少清理次数和清理强度。
Description
技术领域
本发明涉及一种喷涂废气处理系统。
背景技术
我们在进行工业涂装时,需要用到各种有机化学药品和金属电镀工艺,因此也常常会产生大量的挥发性有机废气,对生产人员和环境产生极大的危害。大多数企业在进行涂装时多会设置涂装喷房,涂装喷房正面设有水幕板,水幕板的上方设有水雾喷口,喷房的底部设置废水池,使残留的涂料落入废水池内。漆枪工作时喷出的没有附着到工件上的残留涂料与水幕相遇冲刷到废水池内,另一部分废气通过烟道向外排出经光氧催化、活性炭处理后达标排放。这种处理方式使涂装喷房内的水槽、墙壁、隔壁板、水幕板、配管、喷嘴、排气扇等所有的地方都会粘上涂料,因而产生各种各样的问题,如需停工清洗、耗能等问题。废水池里的渣也是靠人工沉淀分离,产生大量的废水需要很多污水池沉淀过滤。冲入废水池内的涂料残渣含水量达到95%以上,而且涂料具有粘着性,所以作为废弃物处理很难。
发明内容
本发明提供一种改装简单、节约成本,油水分离更彻底且能回收循环利用废气、废水的内循环自排渣微排放喷房系统。
本发明是通过如下技术方案来实现的:一种内循环自排渣微排放喷房系统,包括喷枪、支架、工件、喷房以及PLC控制系统,其主要技术特征是所述喷房两侧近喷房门口设有送风口和水雾喷口,喷房门口对侧设有离心风机,离心风机出风口连水气分离装置,水气分离装置下方设有废水池,水气分离装置和废水池设置在封闭的箱体内,废水池上通过管路连风机,风机连曝气箱,曝气箱连光氧催化装置,光氧催化装置连活性炭处理装置,活性炭处理装置连VOC传感器,VOC传感器接排放口;所述水气分离装置为若干块W形板间隔距离平行排列构成;废水池底部通过管路连隔膜泵、隔膜泵通过管路连压滤机,压滤机接排渣管。
所述喷房两侧的送风口通过风管接入废水池的封闭的箱体内。
所述废水池旁设有循环水池,两者之间用隔离板隔开,循环水池也在在封闭的箱体内。
所述废水池上方通有滴药剂管,滴药剂管上端接定时器和药剂箱。
所述喷房内水雾喷口通过管路接超声波雾化箱,超声波雾化箱接入循环水池底部,水雾的量二倍于涂料油雾。
所述曝气箱有出水管通入废水池内。
所述压滤机连出水管接入循环水池。
所述废水池上设有水位开关。
所述循环水池底部位置比废水池底高。
所述连曝气箱的风机转速快慢受PLC控制系统和VOC传感器的控制。
本发明结构简单,涂装企业改装成本低,即节省费用,又能符合环保要求。用二倍于涂料油雾的水雾掺和的目的是为了降低涂料粘度,不使风机、气管被涂料粘结。一部分废气由高速风机引入到曝气箱进行二次气雾分离,达到低于国家排放标准进行排放。离心风机将油雾和水雾的混合物经水气分离器吹入废水池,通过这种特制的弯曲通道分离,使水气分离更彻底。本发明还通过废气、废水的循环回收利用,降低耗能,减少废物处理量,减少清理次数和清理强度。
附图说明:
图1为本发明的结构示意图。
具体实施方式:
如图1所示,本内循环自排渣微排放喷房系统,包括喷枪1、支架2、工件3、喷房4以及PLC控制系统29,喷房4两侧近喷房门口设有送风口5和水雾喷口6,喷房门口对侧设有离心风机7,离心风机出风口连水气分离装置8,水气分离装置下方设有废水池9,水气分离装置和废水池设置在封闭的箱体10内,废水池上通过管路连风机11,风机连曝气箱12,曝气箱连光氧催化装置13,光氧催化装置连活性炭处理装置14,活性炭处理装置连VOC传感器15,VOC传感器接排放口16。水气分离装置为五块W形板8-1间隔距离平行排列构成,将油雾和水雾的混合物能很好的分离开来。废水池底部通过管路连隔膜泵17、隔膜泵通过管路连压滤机18,压滤机接排渣管19。喷房两侧的送风口通过风管20接入废水池的封闭的箱体内。废水池旁设有循环水池21,两者之间用隔离板21-1隔开。废水池上方通有滴药剂管22,滴药剂管上端接定时器23和药剂箱24,药剂箱的药剂为净水剂。喷房内水雾喷口通过管路接超声波雾化箱25,超声波雾化箱接入循环水池底部。曝气箱有出水管26通入废水池内。压滤机连出水管27接入循环水池。废水池上设有水位开关28。
其工作过程:1)、工件从喷房支架匀速运行,喷枪喷出涂料附着在工件上达到涂装目的,多余的涂料透过工件间隙喷向喷房内部,此时超声波雾化箱里的雾化水经PLC控制到二倍于涂料也向喷房喷出,用二倍于涂料油雾的水雾掺和的目的是为了降低涂料粘度,不使风机、气管被涂料粘结。减少清理次数和清理强度。
2)、离心风机将油雾和水雾的混合物经水气分离器吹入废水池,水气分离器将油水混合物分离滴入废水池,风机吹入的带有溶剂挥发的废气则在废水池上层形成一定的压力,一部分废气因箱内压力压回喷房用作喷房送风,另一部分则由高速风机引入到曝气箱进行二次气雾分离,分离的废气进入光氧催化进行废气处理,再引入活性炭吸附处理进行排放,再喷房的COD浓度由VOC传感器检测控制风机转速,达到低于国家排放标准进行排放。曝气箱有出水管通入废水池内,而溢流的曝气箱废水引入到废水池废水中进行重复压滤。
3)、经定时器控制自动定时定量将药剂箱里的净水剂加入到废水池废水中,净水机化学作用和离心风机的吹入气压形成的搅拌作用使废水中的高分子物质沉降、去粘、结块。废水池因水气分离器的不断滴入水位高度越来越高,当水位高度达到水位开关的高水位时,系统启动隔膜泵和压滤机,压滤机滤出的带极少颗粒的废水导入废水池旁边的循环水池里,该水池的废水经超声波雾化箱雾化导入喷房,循环利用为涂料的稀释水。压滤机连出水管接入循环水池。循环水池溢流部分则导入废水池废水中,进行多次循环排渣。压滤机的排出的漆渣则灌入袋子,另行交由环保部门集中处理。
Claims (10)
1.一种内循环自排渣微排放喷房系统,包括喷枪、支架、工件、喷房以及PLC控制系统,其特征在于所述喷房两侧近喷房门口设有送风口和水雾喷口,喷房门口对侧设有离心风机,离心风机出风口连水气分离装置,水气分离装置下方设有废水池,水气分离装置和废水池设置在封闭的箱体内,废水池上通过管路连风机,风机连曝气箱,曝气箱连光氧催化装置,光氧催化装置连活性炭处理装置,活性炭处理装置连VOC传感器,VOC传感器接排放口;所述水气分离装置为若干块W形板间隔距离平行排列构成;废水池底部通过管路连隔膜泵、隔膜泵通过管路连压滤机,压滤机接排渣管。
2.如权利要求1所述的一种内循环自排渣微排放喷房系统,其特征在于所述喷房两侧的送风口通过风管接入废水池的封闭的箱体内。
3.如权利要求1所述的一种内循环自排渣微排放喷房系统,其特征在于所述废水池旁设有循环水池,两者之间用隔离板隔开,循环水池也在在封闭的箱体内。
4.如权利要求3所述的一种内循环自排渣微排放喷房系统,其特征在于所述废水池上方通有滴药剂管,滴药剂管上端接定时器和药剂箱。
5.如权利要求1所述的一种内循环自排渣微排放喷房系统,其特征在于所述喷房内水雾喷口通过管路接超声波雾化箱,超声波雾化箱接入循环水池底部;水雾的量二倍于涂料油雾。
6.如权利要求1所述的一种内循环自排渣微排放喷房系统,其特征在于所述曝气箱有出水管通入废水池内。
7.如权利要求1所述的一种内循环自排渣微排放喷房系统,其特征在于所述压滤机连出水管接入循环水池。
8.如权利要求1所述的一种内循环自排渣微排放喷房系统,其特征在于所述废水池上设有水位开关。
9.如权利要求1所述的一种内循环自排渣微排放喷房系统,其特征在于所述循环水池底部位置比废水池底高。
10.如权利要求1所述的一种内循环自排渣微排放喷房系统,其特征在于所述连曝气箱的风机转速快慢受PLC控制系统和VOC传感器的控制。
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Citations (9)
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