WO2020103542A1 - 一种废气前处理装置 - Google Patents

一种废气前处理装置

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Publication number
WO2020103542A1
WO2020103542A1 PCT/CN2019/105239 CN2019105239W WO2020103542A1 WO 2020103542 A1 WO2020103542 A1 WO 2020103542A1 CN 2019105239 W CN2019105239 W CN 2019105239W WO 2020103542 A1 WO2020103542 A1 WO 2020103542A1
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WO
WIPO (PCT)
Prior art keywords
exhaust gas
pretreatment device
water
gas pretreatment
cleaning
Prior art date
Application number
PCT/CN2019/105239
Other languages
English (en)
French (fr)
Inventor
郭燕蕾
沈中增
余莉萍
Original Assignee
苏州敬天爱人环境科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 苏州敬天爱人环境科技有限公司 filed Critical 苏州敬天爱人环境科技有限公司
Priority to JP2019600188U priority Critical patent/JP3235097U/ja
Publication of WO2020103542A1 publication Critical patent/WO2020103542A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0002—Casings; Housings; Frame constructions
    • B01D46/0005—Mounting of filtering elements within casings, housings or frames
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
    • B01D46/12—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces in multiple arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
    • B01D46/62—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
    • B01D46/64—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series arranged concentrically or coaxially
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/66—Regeneration of the filtering material or filter elements inside the filter
    • B01D46/68—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements
    • B01D46/681—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements by scrapers, brushes or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/66—Regeneration of the filtering material or filter elements inside the filter
    • B01D46/70—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter
    • B01D46/72—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter with backwash arms, shoes or nozzles
    • 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
    • B01D53/26—Drying gases or vapours
    • 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
    • B01D53/38—Removing components of undefined structure
    • B01D53/44—Organic components
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/02—Cleaning by the force of jets or sprays
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal

Definitions

  • This application belongs to the technical field of machinery, and relates to an exhaust gas pretreatment device.
  • the 140 °C -170 °C exhaust gas emitted by the printing and dyeing machine not only contains a lot of smoke, but also contains polyphenyl organic compounds, printing and dyeing aids, grease, wax and irritating odors.
  • the concentration is 150-250 mg / m 3
  • the oil smoke concentration is 40-80 mg / m 3 .
  • the particulate matter, oil fumes and irritating odors emitted by the printing and dyeing machine have great harm to human health and the environment, and the pollution caused by the exhaust gas emitted by the machine has become more and more acute.
  • the separate water spraying method can no longer meet the current environmental protection requirements and is gradually phased out.
  • pretreatment process + electrostatic adsorption basically meet the current environmental protection requirements, but most of the pretreatment process is imperfect: filter clogging, heat exchanger clogging, accumulation of pollutants, heavy fire hazards, electrostatic adsorption Insufficient capacity and potential safety hazards, low degree of automation, no treatment facilities for small amounts of VOCs, odor problems, or the use of activated carbon, plasma, photocatalysis, etc. are not suitable for high-humidity printing and dyeing exhaust gas containing oil, wax, and wool. Fires occur from time to time, and repetitive investment in processing facilities by printing and dyeing companies is common.
  • the purpose of the present application is to address the above-mentioned problems in the existing technology, and proposes an exhaust gas pretreatment device.
  • the equipment is designed to solve the problems of easy clogging and safety hazards during exhaust gas pretreatment.
  • An exhaust gas pretreatment device is used to treat exhaust gas of a printing and dyeing machine.
  • the exhaust gas pretreatment device is arranged laterally for the exhaust gas to pass in laterally; the intake end of the exhaust gas pretreatment device is provided with a pneumatic damper leading into the exhaust gas, and the exhaust gas pretreatment device
  • There is an on-line cleaning mechanism which includes dual cleaning methods of steam cleaning and water cleaning.
  • the exhaust gas pretreatment device has an exhaust gas passage for exhaust gas to pass through.
  • the exhaust gas passage is provided with an automatic hair removal mechanism, an air-water heat exchange mechanism, a wax and impurity removal mechanism, and a primary unit for sequentially processing exhaust gas Micro-bubble deodorization mechanism and water and mist removal mechanism.
  • the automatic hair removal mechanism includes a support frame and a filter screen.
  • the support frame is fixed on the inner wall of the exhaust gas channel.
  • the filter screen is detachably fixed on the support frame.
  • the filter screen has anti-adhesion properties.
  • the filter screen is arranged in multiple stages, and the filter screen is distributed in the exhaust gas passage at intervals.
  • the mesh number of the filter gradually increases along the intake direction.
  • the online cleaning mechanism extends into the exhaust gas channel, and the online cleaning mechanism acts on the automatic hair removal mechanism, the gas-water heat exchange mechanism, the wax and impurity removal mechanism, the primary micro-bubble deodorization mechanism and the deodorization mechanism. Water defogging mechanism.
  • the online cleaning mechanism includes a front steam nozzle, a back steam nozzle, a front water pipe nozzle and a back water pipe nozzle, the front steam nozzle and the front water pipe nozzle are arranged on one side of the exhaust gas passage, the back steam nozzle and the back water pipe The spray head is arranged on the other side of the exhaust gas channel.
  • the gas-water heat exchange mechanism is an alloy profiled shell-and-tube heat exchanger with anti-adhesion properties.
  • the automatic hair removal mechanism cooperates with the double automatic online cleaning mechanism of steam and water on the front and back sides, matching the reasonable mesh mesh number, reducing the wind resistance to the greatest extent, realizing the automatic filtering of the wool, automatic online cleaning, and free of manual maintenance. Prerequisites for the stable operation of roadworkers;
  • the special-shaped structure of the gas-water heat exchange mechanism structurally solves the problems of large air resistance, low heat transfer efficiency and easy clogging of conventional heat exchangers; It has the characteristics of low overall wind resistance, long service life and low overall cost.
  • FIG. 1 is a schematic structural diagram of an exhaust gas treatment device for a printing and dyeing machine of the present application.
  • FIG. 2 is a top view of the exhaust gas treatment equipment of the printing and dyeing machine of the present application.
  • the present application provides an exhaust gas pretreatment device for treating exhaust gas of a printing and dyeing machine.
  • the exhaust gas pretreatment device 1 communicates with a purification tower 2 adopting electrostatic adsorption, and the exhaust gas pretreatment device 1 is arranged laterally For the exhaust gas to pass laterally into the purification tower 2; the intake end of the exhaust gas pretreatment device 1 is provided with a pneumatic damper 3 leading to the exhaust gas; the end of the purification tower 2 has an exhaust port 4 for the clean discharge of the exhaust gas after treatment;
  • the processing device 1 is provided with an online cleaning mechanism 5.
  • Exhaust gas pretreatment device 1 has an exhaust gas passage for the exhaust gas to pass through.
  • the exhaust gas passage is provided with an automatic hair removal mechanism 6, an air-water heat exchange mechanism 7, a wax and impurity removal mechanism 8, a primary micro-bubble deodorization mechanism for sequentially processing the exhaust gas 9 and water and mist removal mechanism 10.
  • the automatic hair removal mechanism 6 includes a support frame and a filter screen.
  • the support frame is fixed on the inner wall of the exhaust gas channel.
  • the filter screen is detachably fixed on the support frame.
  • the filter screen has anti-adhesion properties.
  • the automatic depilation mechanism 6 is equipped with an alloy filter screen with good anti-adhesion performance, designed and manufactured a matching support frame, and matched with the automatic online cleaning mechanism 5 to match a reasonable mesh size and maximum The degree of wind resistance is reduced, the automatic filtration of the flock, the automatic online cleaning, and the maintenance-free operation are provided, which provides the premise guarantee for the stable operation of the subsequent exhaust gas treatment.
  • the filter net is arranged in multiple stages, and the filter nets are distributed in the exhaust gas channel at intervals; the mesh size of the filter net gradually increases along the intake direction, so that the automatic hair removal mechanism 6 presents a multi-stage treatment, which improves the flocculation. Processing effect.
  • the online cleaning mechanism 5 extends into the exhaust gas channel, and the online cleaning mechanism 5 acts on the automatic hair removal mechanism 6, the gas-water heat exchange mechanism 7, the wax removal and impurity removal mechanism 8, the primary micro-bubble deodorization mechanism 9 and the water and mist removal Agency 10.
  • the online cleaning mechanism 5 includes dual cleaning methods of steam cleaning and water cleaning.
  • the online cleaning mechanism 5 includes a front steam nozzle, a back steam nozzle, a front water pipe nozzle and a back water pipe nozzle, the front steam nozzle and the front water pipe nozzle are arranged on one side of the exhaust gas channel, and the back steam nozzle and the back water pipe nozzle are arranged on the other side of the exhaust gas channel side.
  • the gas-to-water heat exchange mechanism 7 is an alloy profiled shell-and-tube heat exchanger with anti-adhesion properties.
  • the gas-water heat exchange mechanism 7 adopts an alloy shaped tube-and-shell type heat exchanger with excellent anti-adhesion properties.
  • the special-shaped structure solves the problems of large wind resistance, low heat transfer efficiency and easy blockage of the conventional heat exchanger from its structure; it has good corrosion resistance, good anti-fouling performance, good heat transfer performance, low overall wind resistance and long service life. Features of low cost.
  • the gas-to-water heat exchange mechanism 7 cooperates with the automatic online cleaning mechanism 5 to completely solve the problems of partial blockage and troublesome maintenance of the cooling and heat exchange in the industry, and realizes manual maintenance-free.
  • the purification tower 2 is provided with an electrostatic adsorption device 11 for sequentially processing exhaust gas, a micro-nano bubble depth deodorization mechanism 12 and a terminal white gas removal mechanism.
  • the purification tower 2 includes a first-stage tower body 14, a second-stage tower body 15 and a third-stage tower body 16, the first-stage tower body 14 is arranged longitudinally for the passage of exhaust gas from bottom to top, the exhaust gas pretreatment device 1 and the first-stage tower body 14 Connected horizontally and vertically, the exhaust gas pretreatment device 1 is connected to the lower side of the primary tower body 14; the secondary tower body 15 communicates with the primary tower body 14 and the tertiary tower body 16, and the secondary tower body 15 supplies gas from above While extending downward, the three-stage tower body 16 supplies gas from the bottom to the top and discharges outward; the electrostatic adsorption purification device is provided in the first-stage tower body 14, and the micro-nano bubble depth deodorization mechanism 12 is provided in the second-stage tower body 15, at the end The white gas removal mechanism is installed in the three-stage tower body 16; the three-stage tower body 16 is connected to the fan 17.
  • the electrostatic adsorption device 11 is used to treat the dyeing and finishing fume and particulate matter in the exhaust gas.
  • the electrostatic adsorption device 11 includes an electrostatic field body and a power source.
  • the bottom of the first-level tower 14 is connected to the sewage outlet pipe. Cleaning the spray head, the upper side of the electrostatic field body is equipped with water automatic cleaning spray head;
  • the body of the electrostatic field is a honeycomb vertical electric field (the area of the oil and dust collection area of this structure is the highest under the same volume), and the stun voltage of the alloy barbed wire structure is low, the specific current density is high, and the oil and dust collection efficiency is the highest.
  • the overall structure is stable and reliable, and oil dust is efficiently adsorbed and condensed, and discharged from the sewage outlet pipe under the action of gravity.
  • a steam automatic cleaning nozzle is arranged in the lower part, and a water automatic cleaning nozzle is arranged in the upper part, which can clean the oil wax mixture adhering to the inner wall to solve the problem of hidden safety.
  • the power supply of the electrostatic adsorption device 11 is a composite pulse constant current power supply, which solves the problem of 1.
  • the power consumption of the power frequency power supply is high, the back-corona phenomenon caused by the equivalent capacitance effect causes the reduction of the dust removal rate; 2.
  • the problem of poor stability of the high-frequency power supply .
  • the basic voltage is superimposed on the pulse voltage. By adjusting the amplitude and frequency, the collection effect of ultrafine particles can be improved.
  • the micro-nano bubble deodorization device is used for further processing of organic waste gas.
  • the micro-nano bubble deodorization device includes a micro-nano bubble generator and auxiliary parts, and the auxiliary parts include a reaction area pipeline, a booster pump, a circulating water tank, and a filter.
  • Micro-nano bubbles come into contact with organic waste gas (VOCs), and physical and chemical synergies such as mechanical shearing, pyrolysis, free radical oxidation, supercritical water oxidation, etc. occur at the hot spot, and finally the function of decomposing organic waste gas (VOCs)
  • Organic matter (VOCs) is converted into CO 2 , H 2 O, N 2 and a part of solid particulate matter (S, P, etc. are converted into the highest valence salts to stabilize, and a stable solid phase exists in ash).
  • This micro-nano bubble treatment of low-concentration organic waste gas is carried out in a gas-liquid environment. There is no open flame, no hidden safety hazards, low power consumption, small footprint, and high efficiency.
  • Adopting anti-adhesion alloy shaped shell and tube heat exchanger the clean hot water recovered from the high temperature exhaust gas cooling process can be used in the following aspects:
  • the first 90 ° C hot water supply terminal white vapor removal mechanism 13 eliminates white vapor, the cooled water returns to continue heating, and circulates ;
  • the second section of 60 °C hot water is used for production process water, which can reduce the practice of using steam to directly remove white steam at the end, so as to achieve the purpose of saving steam.

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  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • General Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
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Abstract

一种废气前处理装置（1），用于处理印染定型机废气，废气前处理装置（1）呈横向设置以供废气横向通入，废气前处理装置（1）的进气端设有通入废气的气动风门（3），废气前处理装置上设有在线清洗机构（5），在线清洗机构（5）包括蒸汽清洗和水清洗双重清洗方式，废气前处理装置（1）具有废气通道，废气通道内设有对废气进行依次处理的自动除毛机构（6）、气水换热机构（7）、除蜡除杂机构（8）、初级微气泡除味机构（9）和除水除雾机构（10）。

Description

一种废气前处理装置 技术领域
本申请属于机械技术领域，涉及一种废气前处理装置。
背景技术
印染定型机运行时排放的140℃-170℃废气不仅含有大量烟尘，同时还有聚苯类有机物、印染助剂、油脂、蜡质和刺激性气味等多种成分，定型机排放的废气中颗粒物浓度为150～250mg/m 3，油烟浓度为40～80mg/m 3。印染定型机运行时所排放的颗粒物、油烟及刺激性气味对人类身体健康和环境具有极大危害，定型机排放的废气引起的污染问题也变得越来越尖锐。
目前印染行业定型机尾气治理的主要方式及企业在尾气治理过程中遇到的问题：
(1)、单独的水喷淋方式，已经满足不了现在的环保要求，逐步淘汰。
(2)、喷淋+静电吸附方式，因为没有前处理工艺，也满足不了目前的环保要求，已逐步淘汰。
(3)、目前多数方式为：前处理工艺+静电吸附；基本满足目前的环保要求，但是前处理工艺多数不完善：过滤网堵塞、换热器堵塞、污染物积存，火灾隐患重，静电吸附能力不足且存在安全隐患，自动化程度不高，对于少量的VOCs、异味问题没有处理设施，或者选用活性炭、等离子、光催化等不太适合含油、蜡、毛的高湿印染废气，处理设施瘫痪、着火时有发生，印染企业对处理设施的重复投资现象 普遍存在。
这是本领域人员亟待解决的问题。
发明内容
本申请的目的是针对现有的技术存在上述问题，提出了一种废气前处理装置，设备为解决废气处理前处理时容易堵塞以及安全隐患的问题。
本申请的目的可通过下列技术方案来实现：
一种废气前处理装置，用于处理印染定型机废气，废气前处理装置呈横向设置以供废气横向通入；废气前处理装置的进气端设有通入废气的气动风门，废气前处理装置上设有在线清洗机构，在线清洗机构包括蒸汽清洗和水清洗双重清洗方式。
在上述的废气前处理装置中，废气前处理装置具有供废气通过的废气通道，废气通道内设有对废气进行依次处理的自动除毛机构、气水换热机构、除蜡除杂机构、初级微气泡除味机构和除水除雾机构。
在上述的废气前处理装置中，自动除毛机构包括支撑架和过滤网，支撑架固设于废气通道的内壁，过滤网可拆卸地固定在支撑架上，过滤网具有防粘附性能。
在上述的废气前处理装置中，过滤网呈多级设置，过滤网间隔地分布在废气通道内。
在上述的废气前处理装置中，过滤网的网眼目数沿着进气方向逐渐增大。
在上述的废气前处理装置中，在线清洗机构伸入到废气通道内， 在线清洗机构分别作用于自动除毛机构、气水换热机构、除蜡除杂机构、初级微气泡除味机构和除水除雾机构。
在上述的废气前处理装置中，在线清洗机构包括正面蒸汽喷头、反面蒸汽喷头、正面水管喷头和反面水管喷头，正面蒸汽喷头和正面水管喷头设置于废气通道的一侧，反面蒸汽喷头和反面水管喷头设置于废气通道的另一侧。
在上述的废气前处理装置中，气水换热机构是具有防粘附性能的合金异型管壳式换热器。
与现有技术相比，本技术方案具有的优势是：
1、自动除毛机构配合正反面蒸汽和水的双重自动在线清洗机构，匹配合理的网眼目数，最大程度减少风阻，实现毛絮的自动过滤，自动在线清洗，免人工维护，这是实现后道工需稳定运行的前提条件；
2、气水换热机构的异型结构是从结构上解决常规换热器风阻大、换热效率低、易堵塞的问题；其具有耐腐蚀性能好、抗结垢性能好、传热性能好、整体风阻小、使用寿命长综合成本低的特点。
附图说明
图1是本申请的印染定型机废气处理设备的结构示意图。
图2是本申请的印染定型机废气处理设备的俯视图。
具体实施方式
以下描述用于揭露本申请以使本领域技术人员能够实现本申请。以下描述中的优选实施例只作为举例，本领域技术人员可以想到其他显而易见的变型。
如图1至图2所示，本申请提供一种废气前处理装置，用于处理印染定型机废气，废气前处理装置1与采用静电吸附的净化塔2相通，废气前处理装置1呈横向设置以供废气横向通入净化塔2；废气前处理装置1的进气端设有通入废气的气动风门3，净化塔2的末端具有供处理后的废气洁净排放的排气口4；废气前处理装置1上设有在线清洗机构5。
废气前处理装置1具有供废气通过的废气通道，废气通道内设有对废气进行依次处理的自动除毛机构6、气水换热机构7、除蜡除杂机构8、初级微气泡除味机构9和除水除雾机构10。
自动除毛机构6包括支撑架和过滤网，支撑架固设于废气通道的内壁，过滤网可拆卸地固定在支撑架上，过滤网具有防粘附性能。
针对废气中含有毛絮的特点，自动除毛机构6设有防粘附性能佳的合金过滤网，设计制作与之匹配的支撑架，配合自动在线清洗机构5，匹配合理的网眼目数，最大程度减少了风阻，实现了毛絮的自动过滤，自动在线清洗，免人工维护，为后续废气处理的稳定运行提供了前提保证。
过滤网呈多级设置，过滤网间隔地分布在废气通道内；过滤网的网眼目数沿着进气方向逐渐增大，从而使得该自动除毛机构6呈现多级化处理，提高对毛絮的处理效果。
在线清洗机构5伸入到废气通道内，在线清洗机构5分别作用于自动除毛机构6、气水换热机构7、除蜡除杂机构8、初级微气泡除味机构9和除水除雾机构10。
在线清洗机构5包括蒸汽清洗和水清洗双重清洗方式。
在线清洗机构5包括正面蒸汽喷头、反面蒸汽喷头、正面水管喷头和反面水管喷头，正面蒸汽喷头和正面水管喷头设置于废气通道的一侧，反面蒸汽喷头和反面水管喷头设置于废气通道的另一侧。
气水换热机构7是具有防粘附性能的合金异型管壳式换热器。
针对废气中含有油烟、颗粒物、蜡质、毛絮及综合粘附物的特点，气水换热机构7采用防粘附性能佳的合金异型管壳式换热器。异型结构是从结构上解决常规换热器风阻大、换热效率低、易堵塞的问题；其具有耐腐蚀性能好、抗结垢性能好、传热性能好、整体风阻小、使用寿命长综合成本低的特点。
气水换热机构7配合自动在线清洗机构5，彻底解决了行业内降温换热部分堵塞、维护麻烦问题，实现了免人工维护。
净化塔2设有对废气依次处理的静电吸附装置11、微纳米气泡深度除味机构12和末端白气去除机构。
净化塔2包括一级塔体14、二级塔体15和三级塔体16，一级塔体14呈纵向设置以供废气自下而上通过，废气前处理装置1和一级塔体14横纵相接，废气前处理装置1相接于一级塔体14的下端侧部；二级塔体15连通一级塔体14和三级塔体16，二级塔体15供气体自上而下延伸，三级塔体16供气体自下而上延伸并向外排放；静电吸附净化装置设置于一级塔体14，微纳米气泡深度除味机构12设置于二级塔体15，末端白气去除机构设置于三级塔体16；三级塔体16相连风机17。
静电吸附装置11用于处理废气中的染整油烟和颗粒物，静电吸附装置11包括静电场本体和电源，一级塔体14的底部相接排污口管道，静电场本体的下侧设有蒸汽自动清洗喷头，静电场本体的上侧设有水自动清洗喷头；
静电场本体是蜂窝立式电场(相同体积下此种结构集油集尘面积面积最高)，合金芒刺线结构的起晕电压低，比电流密度高，集油集尘效率最高。整体结构稳定可靠，油尘等被高效吸附凝聚，在重力作用下从排污口管道集中排出。同时下部布置蒸汽自动清洗喷头，上部布置水自动清洗喷头，能够将粘附在内壁上的油蜡混合物清洗干净，解决安全隐患问题。
静电吸附装置11的电源是复合脉冲恒流电源，解决目前1、工频电源能耗高，等效电容效应造成反电晕现象，导致除尘率下降的问题；2、高频电源稳定性差的问题。基础电压叠加脉冲电压，通过对幅度和频率的调整，可以提高超细颗粒物的收集效果。
微纳米气泡除味装置用于进一步处理有机废气，微纳米气泡除味装置包括微纳米气泡发生器和辅助件，辅助件包括反应区域管道、增压水泵、循环水箱、和过滤器等。
微纳米气泡与有机废气(VOCs)接触，在热点处发生机械剪切、热解、自由基氧化、超临界水氧化等物理、化学的协同作用，最终达到分解有机废气(VOCs)的作用，将有机物(VOCs)转化为CO 2、H 2O、N 2以及一部分固体颗粒物(S、P等转化为最高价盐类稳定化，稳定固相存在于灰分中)。
此微纳米气泡处理低浓度有机废气是在气液环境中进行，无明火、不存在安全隐患，功耗低、占地小、效率高。
采用防粘附合金异型管壳式换热器，可将高温废气降温过程回收的清洁热水用于以下几个方面：
(1)、规模企业用户，回收两段清洁热水：第一段90℃热水供中央溴化锂空调制冷，降温后的水回来继续加热，循环运行；第二段60℃热水供生产工艺用水。
(2)、对于有消除“视觉污染”即排放口有消除白色水汽的用户，则第一段90℃热水供末端白汽去除机构13消除白汽，降温后的水回来继续加热，循环运行；第二段60℃热水供生产工艺用水，从而能够减少用蒸汽直接末端除白汽的做法，以达到节约蒸汽的目的。
(3)、对于生产工艺用得到热水的用户回收50-70℃(温度可根据实际需求调整)的清洁热水供生产工艺用水。
(4)、对热水过剩的用户，我们利用其处理后达标排放的污水，比如从混沉池引进来35℃左右的水，走异型防粘换热管内对废气进行降温，50-60℃的水再回到混沉池。因是间接换热，水的指标没有发生变化，再回到混沉池后不影响废水的排放指标。

Claims (8)

  1. 一种废气前处理装置，用于处理印染定型机废气，其特征在于，废气前处理装置呈横向设置以供废气横向通入；废气前处理装置的进气端设有通入废气的气动风门，废气前处理装置上设有在线清洗机构，在线清洗机构包括蒸汽清洗和水清洗双重清洗方式。
  2. 根据权利要求1所述的废气前处理装置，其特征在于，废气前处理装置具有供废气通过的废气通道，废气通道内设有对废气进行依次处理的自动除毛机构、气水换热机构、除蜡除杂机构、初级微气泡除味机构和除水除雾机构。
  3. 根据权利要求2所述的废气前处理装置，其特征在于，自动除毛机构包括支撑架和过滤网，支撑架固设于废气通道的内壁，过滤网可拆卸地固定在支撑架上，过滤网具有防粘附性能。
  4. 根据权利要求3所述的废气前处理装置，其特征在于，过滤网呈多级设置，过滤网间隔地分布在废气通道内。
  5. 根据权利要求4所述的废气前处理装置，其特征在于，过滤网的网眼目数沿着进气方向逐渐增大。
  6. 根据权利要求2所述的废气前处理装置，其特征在于，在线清洗机构伸入到废气通道内，在线清洗机构分别作用于自动除毛机构、气水换热机构、除蜡除杂机构、初级微气泡除味机构和除水除雾机构。
  7. 根据权利要求6所述的废气前处理装置，其特征在于，在线清洗机构包括正面蒸汽喷头、反面蒸汽喷头、正面水管喷头和反面水管喷头，正面蒸汽喷头和正面水管喷头设置于废气通道的一侧， 反面蒸汽喷头和反面水管喷头设置于废气通道的另一侧。
  8. 根据权利要求6所述的废气前处理装置，其特征在于，气水换热机构是具有防粘附性能的合金异型管壳式换热器。
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