CN108579374A - 化工废气处理装置 - Google Patents

化工废气处理装置 Download PDF

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CN108579374A
CN108579374A CN201810628298.9A CN201810628298A CN108579374A CN 108579374 A CN108579374 A CN 108579374A CN 201810628298 A CN201810628298 A CN 201810628298A CN 108579374 A CN108579374 A CN 108579374A
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tower
caustic wash
bottom connection
activated carbon
reducing
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左淑君
秦浩森
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Dalian Goldwater Technology Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/75—Multi-step processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/346—Controlling the process
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/48—Sulfur compounds
    • B01D53/52—Hydrogen sulfide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/54—Nitrogen compounds
    • B01D53/58—Ammonia
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/77—Liquid phase processes
    • B01D53/78—Liquid phase processes with gas-liquid contact
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
    • F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
    • F23G7/061—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating
    • F23G7/065—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating using gaseous or liquid fuel
    • F23G7/066—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating using gaseous or liquid fuel preheating the waste gas by the heat of the combustion, e.g. recuperation type incinerator
    • F23G7/068—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating using gaseous or liquid fuel preheating the waste gas by the heat of the combustion, e.g. recuperation type incinerator using regenerative heat recovery means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2209/00—Specific waste
    • F23G2209/14—Gaseous waste or fumes

Abstract

本发明公开一种能够有效除去化工废气中的污染物成分，保证尾气排放达到国家标准的化工废气处理装置，设有碱洗塔（1），与碱洗塔（1）的底部相接有引风机（2），所述碱洗塔（1）的底部与顶部之间接有第一循环泵（3），碱洗塔（1）的顶部通过RTO风机（4）与蓄热氧化炉（5）相接，蓄热氧化炉（5）的出口与洗降温塔（6）底部相接，所述水洗降温塔（6）的底部与顶部之间接有第二循环泵（7），水洗降温塔（6）的顶部与活性炭塔（8）底部相接，所述活性炭塔（8）顶部通过增压风机（9）与烟囱（10）底部相接。

Description

化工废气处理装置
技术领域
本发明涉及一种化工废气处理装置，尤其是一种能够有效除去化工废气中的污染物成分、保证尾气排放达到国家标准的化工废气处理装置。
背景技术
在化工生产过程中不可避免地产生一些含有挥发性有机物（VOCs）和臭味的气体，如：烃类、苯、甲苯、二甲苯、酚类、氨、硫化氢等。为避免对大气和环境造成污染，这些气体成分不能直接排入大气，必须经过无害化处理（达到排放标准）后才能进行排放。现有的废气处理方法如下：废气→预处理生物塔→一级生物净化器 →二级生物净化器→三级生物净化器→负压离心风机→高空排放塔。此方法只适合于处理VOCs和臭气浓度不高且浓度波动不大的废气，当VOCs和臭气浓度大和浓度波动幅度大时，其处理效率和效果难以保证。
发明内容
本发明是为了解决现有技术所存在的上述技术问题，提供一种能够有效除去化工废气中的污染物成分、保证尾气排放达到国家标准的化工废气处理装置。
本发明的技术解决方案是：一种化工废气处理装置，设有碱洗塔，与碱洗塔的底部相接有引风机，所述碱洗塔的底部与顶部之间接有第一循环泵，碱洗塔的顶部通过RTO风机与蓄热氧化炉相接，蓄热氧化炉的出口与洗降温塔底部相接，所述水洗降温塔的底部与顶部之间接有第二循环泵，水洗降温塔的顶部与活性炭塔底部相接，所述活性炭塔顶部通过增压风机与烟囱底部相接。
本发明设置了碱洗塔、RTO燃烧炉、水洗降温塔及活性炭塔等装置，可将废气经碱洗除去NH3和H2S等含氮含硫成分，经过燃烧除去VOCs，再经活性炭吸附后排放。能够有效地除去废气中的污染物成分，保证尾气排放达到国家规定的环保标准。
附图说明
图1是本发明实施例的结构示意图。
具体实施方式
本发明的化工废气处理装置如图1所示：设有碱洗塔1，与碱洗塔1的底部相接有引风机2，所述碱洗塔1的底部与顶部之间接有第一循环泵3，碱洗塔1的顶部通过RTO风机4与蓄热氧化炉5相接，蓄热氧化炉5（RTO）的出口与洗降温塔6底部相接，水洗降温塔6底部与顶部之间接有第二循环泵7，水洗降温塔6的顶部与活性炭塔8底部相接，活性炭塔8顶部通过增压风机9与烟囱10底部相接。
工作过程：
废气通过管路收集后经引风机2引入碱洗塔1并经第一循环泵3驱动，反复循环碱洗，去除废气中的NH3和H2S等含氮含硫成分，之后通过RTO风机4进入蓄热氧化炉（RTO）5，在蓄热氧化炉5内，废气中的VOCs成分经过充分燃烧后分解成无污染的CO2和H2O等，污染指标基本达到排放标准。为确保在污染物浓度最大值时依然能够达到排放标准，蓄热氧化炉5燃烧排气首先进入水洗降温塔6，由第二循环泵7驱动反复循环冷却，之后再经过管道进入活性炭塔8，活性炭塔8内设置蜂窝活性炭，可对废气进行最终保安吸附，经过活性炭塔8吸附净化后的达标排气由增压风机9抽吸至烟囱10排放。
本发明实施例处理前后废气中污染物浓度分别如表1、表2所示。
表1
表2
通过对比可以看出，本发明实施例废气处理后，各污染物含量明显降低，符合国家规定的排放标准GB31571-2015。

Claims (1)

1.一种化工废气处理装置，其特征在于：设有碱洗塔（1），与碱洗塔（1）的底部相接有引风机（2），所述碱洗塔（1）的底部与顶部之间接有第一循环泵（3），碱洗塔（1）的顶部通过RTO风机（4）与蓄热氧化炉（5）相接，蓄热氧化炉（5）的出口与洗降温塔（6）底部相接，所述水洗降温塔（6）的底部与顶部之间接有第二循环泵（7），水洗降温塔（6）的顶部与活性炭塔（8）底部相接，所述活性炭塔（8）顶部通过增压风机（9）与烟囱（10）底部相接。
CN201810628298.9A 2018-06-19 2018-06-19 化工废气处理装置 Withdrawn CN108579374A (zh)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205109398U (zh) * 2015-10-23 2016-03-30 杭州尹力环保科技有限公司 一种含氯有机废气净化设备
CN106122985A (zh) * 2016-08-30 2016-11-16 苏州云白环境设备股份有限公司 用于净化炼油产生的有机废气的装置
CN206103691U (zh) * 2016-10-11 2017-04-19 江苏齐清环境科技有限公司 一种利用燃煤锅炉处理低浓度大风量有机废气的装置
CN206709101U (zh) * 2017-04-10 2017-12-05 江苏齐清环境科技有限公司 一种蓄热式热氧化炉处理挥发性有机废气的装置
CN208742258U (zh) * 2018-06-19 2019-04-16 大连合众金水科技有限公司 化工废气处理装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205109398U (zh) * 2015-10-23 2016-03-30 杭州尹力环保科技有限公司 一种含氯有机废气净化设备
CN106122985A (zh) * 2016-08-30 2016-11-16 苏州云白环境设备股份有限公司 用于净化炼油产生的有机废气的装置
CN206103691U (zh) * 2016-10-11 2017-04-19 江苏齐清环境科技有限公司 一种利用燃煤锅炉处理低浓度大风量有机废气的装置
CN206709101U (zh) * 2017-04-10 2017-12-05 江苏齐清环境科技有限公司 一种蓄热式热氧化炉处理挥发性有机废气的装置
CN208742258U (zh) * 2018-06-19 2019-04-16 大连合众金水科技有限公司 化工废气处理装置

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Application publication date: 20180928