WO2020103329A1 - Treatment process for atmospheric pollutants - Google Patents

Treatment process for atmospheric pollutants

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Publication number
WO2020103329A1
WO2020103329A1 PCT/CN2019/072736 CN2019072736W WO2020103329A1 WO 2020103329 A1 WO2020103329 A1 WO 2020103329A1 CN 2019072736 W CN2019072736 W CN 2019072736W WO 2020103329 A1 WO2020103329 A1 WO 2020103329A1
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WO
WIPO (PCT)
Prior art keywords
exhaust gas
deodorization
tower body
waste gas
gas
Prior art date
Application number
PCT/CN2019/072736
Other languages
French (fr)
Chinese (zh)
Inventor
余莉萍
沈中增
郭燕蕾
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 DE212019000021.5U priority Critical patent/DE212019000021U1/en
Priority to ZA2019/03110A priority patent/ZA201903110B/en
Publication of WO2020103329A1 publication Critical patent/WO2020103329A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/017—Combinations of electrostatic separation with other processes, not otherwise provided for

Definitions

  • the invention belongs to the technical field of machinery and relates to an air pollutant treatment process.
  • 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 ⁇ 250mg / m3, and the oil fume concentration is 40 ⁇ 80mg / m3.
  • 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.
  • pretreatment process + electrostatic adsorption basically meet the current environmental protection requirements, but most of the pretreatment process is imperfect: filter clogging, heat exchanger clogging, pollutant accumulation, heavy fire hazards, electrostatic adsorption capacity Insufficient, there are hidden safety hazards, the degree of automation is not high, there is no treatment facility for a small amount of VOCs, odor problems, or the use of activated carbon, plasma, photocatalysis, etc. is not suitable for high-humidity printing and dyeing exhaust gas containing oil, wax, and wool. Occasionally, repetitive investment in treatment facilities by printing and dyeing companies is common.
  • the purpose of the present invention is to address the above problems in the existing technology, and proposes an air pollutant treatment process for solving the problem of incomplete exhaust gas treatment process.
  • An atmospheric pollutant treatment process characterized in that it includes steps:
  • Air intake the exhaust gas to be treated is passed into the exhaust gas pretreatment device;
  • Wax removal the exhaust gas after heat exchange passes the wax removal and impurity removal mechanism to remove the wax in the exhaust gas;
  • Electrostatic adsorption the exhaust gas after the initial deodorization passes from bottom to top into the purification tower, and the electrostatic adsorption device removes the oil smoke and particulate matter in the exhaust gas;
  • End treatment The exhaust gas after deep deodorization passes through the terminal white steam removal mechanism from bottom to top to remove white steam;
  • the exhaust gas pretreatment device is connected to the purification tower.
  • the exhaust gas pretreatment device is arranged laterally for the exhaust gas to pass laterally into the purification tower; the intake end of the exhaust gas pretreatment device is provided with a pneumatic
  • the damper and the end of the purification tower have exhaust ports for the clean discharge of the treated exhaust gas; an online cleaning mechanism is provided on the exhaust gas pretreatment device.
  • the automatic dehairing 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, and 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 channel at intervals; the mesh number of the filter screen 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, gas-water heat exchange mechanism, wax removal and impurity removal mechanism, primary micro-bubble deodorization mechanism and Dewatering and defogging mechanism.
  • the online cleaning mechanism includes dual cleaning methods of steam cleaning and water cleaning.
  • the gas-water heat exchange mechanism is an alloy profiled shell and tube heat exchanger with anti-adhesion properties.
  • the purification tower includes a primary tower body, a secondary tower body and a tertiary tower body.
  • the primary tower body is arranged longitudinally for the exhaust gas to pass from bottom to top.
  • the exhaust gas pretreatment device and a The towers are connected horizontally and vertically, and the waste gas pretreatment device is connected to the lower side of the primary tower; the secondary tower connects the primary tower and the tertiary tower, and the secondary tower supplies gas from top to bottom.
  • the gas supply for the three-stage tower extends from the bottom to the top and is discharged; the electrostatic adsorption purification device is installed in the first-stage tower, the micro-nano bubble depth deodorization mechanism is located in the second-stage tower, and the terminal white gas removal mechanism is located in the third One-stage tower body; three-stage tower body connected with fan.
  • the electrostatic adsorption device includes an electrostatic field body and a power source, the bottom of the primary tower body is connected to the sewage outlet pipe, the lower side of the electrostatic field body is provided with a steam automatic cleaning nozzle, and the upper side of the electrostatic field body There is an automatic water cleaning nozzle on the side.
  • the special-shaped structure of the gas-water heat exchange mechanism used in heat exchange is to structurally solve the problems of large wind resistance, low heat exchange efficiency and easy clogging of conventional heat exchangers; it has good corrosion resistance and good anti-scaling performance. The characteristics of good heat transfer performance, low overall wind resistance, long service life and low overall cost; and heat exchange can realize heat recovery;
  • the overall structure adopted by electrostatic adsorption is stable and reliable. Oil dust is efficiently adsorbed and condensed. It is discharged from the sewage outlet pipeline under the action of gravity. At the same time, the lower part is equipped with steam automatic cleaning nozzles, and the upper part is equipped with water automatic cleaning nozzles. The oil-wax mixture on the wall of the tube is cleaned, which can solve the hidden safety problem.
  • FIG. 1 is a schematic structural view of an exhaust gas treatment device of a printing and dyeing machine of the present invention.
  • FIG. 2 is a plan view of the exhaust gas treatment equipment of the printing and dyeing machine of the present invention.
  • FIG. 3 is a process flow chart of the air pollutant treatment process of the present invention.
  • the present invention provides an exhaust gas treatment device for a printing and dyeing machine, which includes an exhaust gas pretreatment device 1 and a purification tower 2 using electrostatic adsorption.
  • the exhaust gas pretreatment device 1 and the purification tower 2 are in communication, and the exhaust gas pretreatment The device 1 is arranged horizontally 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, and the end of the purification tower 2 has exhaust gas for the clean discharge of the treated exhaust gas Port 4; the exhaust gas pretreatment device 1 is provided with an online cleaning mechanism 5.
  • the online cleaning mechanism 5 can solve the problem of incomplete exhaust gas pretreatment process.
  • 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 invention also provides an atmospheric pollutant treatment process, which is implemented by using the exhaust gas treatment equipment of the invention and includes the steps of:
  • Air intake the exhaust gas to be treated is passed into the exhaust gas pretreatment device 1;
  • Wax removal the exhaust gas after heat exchange passes the wax removal and impurity removal mechanism 8 to remove the wax in the exhaust gas;
  • Electrostatic adsorption the exhaust gas after the initial deodorization passes from bottom to top into the purification tower 2, and the electrostatic adsorption device 11 removes the oil smoke and particulate matter in the exhaust gas;
  • Deep deodorization The exhaust gas after electrostatic adsorption passes through the micro-nano bubble deep deodorization mechanism 12 from top to bottom to achieve deep deodorization;
  • End treatment the exhaust gas after deep deodorization passes through the end white steam removal mechanism 13 from bottom to top to remove white steam;
  • 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, and a matching support frame is designed and manufactured to match the automatic on-line cleaning mechanism 5 and the matching is reasonable
  • the mesh size of the mesh reduces the wind resistance to the greatest extent, realizes the automatic filtration of the flock, automatic online cleaning, and no manual maintenance, 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 exhibits multi-stage treatment, Improve the treatment effect of wool.
  • 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.
  • 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 collection and dust collection area of this structure is the highest under the same volume), the spur voltage of the alloy barbed wire structure is low, the specific current density is high, and the oil collection dust collection The most efficient.
  • 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 achieve the function of decomposing organic waste gas (VOCs).
  • Organic matter (VOCs) is converted to CO2, H2O, N2 and a part of solid particulate matter (S, P, etc. are converted to 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.
  • the main components of the exhaust gas treatment equipment are all made of stainless steel, and the core components are made of custom alloy materials to ensure reliable quality and stable performance of the complete equipment, ensure long-term operation, and avoid repeated investment by user companies. low.
  • the exhaust gas treatment equipment is modular in design and has complete functions. It can be customized and adjusted according to the temperature, emissions, pollutant composition, concentration and emission requirements of the exhaust gas in combination with the actual situation of the enterprise to achieve the best effect.
  • the exhaust gas treatment equipment can fully combine environmental protection and energy saving.
  • the exhaust gas treatment equipment adopts anti-adhesion alloy shaped shell and tube heat exchanger, which can use the clean hot water recovered from the high temperature exhaust gas cooling process for the following aspects:
  • (1) large-scale enterprise users, recover two sections of clean hot water: the first section of 90 °C hot water is used for central lithium bromide air-conditioning cooling, and the cooled water is returned to continue heating and circulating operation; the second section of 60 °C hot water is used for production process water .
  • 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.
  • Emission indicators after exhaust gas treatment using the exhaust gas treatment equipment of the present invention are Emission indicators after exhaust gas treatment using the exhaust gas treatment equipment of the present invention.
  • this article uses exhaust gas pretreatment device 1; purification tower 2; pneumatic damper 3; exhaust port 4; online cleaning mechanism 5; automatic hair removal mechanism 6; gas-water heat exchange mechanism 7; wax removal and impurity removal mechanism 8 ; Primary micro-bubble deodorization mechanism 9; dewatering and defogging mechanism 10; electrostatic adsorption device 11; micro-nano bubble depth deodorization mechanism 12; terminal white vapor removal mechanism 13; primary tower body 14; secondary tower body 15; three Stage 16; fan 17 and other terms, but does not exclude the possibility of using other terms.
  • These terms are only used to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitation is contrary to the spirit of the present invention.

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  • Treating Waste Gases (AREA)

Abstract

A treatment process for atmospheric pollutants comprises the following steps: A) gas input: inputting, into a waste gas pre-treatment device, waste gas to be treated; B) fluff removal: inputting the waste gas into an automated fluff removal mechanism, so as to remove fluff from the waste gas; C) heat exchange: inputting, into a gas-liquid heat exchange mechanism, the waste gas from which fluff has been removed, such that the waste gas exchanges heat with the gas-liquid heat exchange mechanism, and the temperature of the waste gas is lowered; D) wax removal: inputting, into a wax and impurity removal mechanism, the waste gas having undergone the heat exchange, so as to remove wax from the waste gas; E) primary deodorization: inputting, into a primary microbubble-based deodorization mechanism, the waste gas having undergone the wax removal, so as to perform primary deodorization on the waste gas; F) electrostatic attraction: inputting, into a purification tower from bottom to top, the waste gas having undergone the primary deodorization, such that an electrostatic attraction device removes fumes and particles from the waste gas; G) deep deodorization: inputting, into a micro-nano bubble deep deodorization mechanism from top to bottom, the waste gas having undergone the electrostatic attraction so as to perform deep deodorization; H) terminal treatment: inputting, into a terminal white-droplet removal mechanism from bottom to top, the waste gas having undergone the deep deodorization, so as to remove white droplets; and I) discharging.

Description

一种大气污染物治理工艺Air pollutant treatment process 技术领域Technical field
本发明属于机械技术领域，涉及一种大气污染物治理工艺。The invention belongs to the technical field of machinery and relates to an air pollutant treatment process.
背景技术Background technique
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/m3，油烟浓度为40～80mg/m3。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。The 140 ℃ -170 ℃ 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 ～ 250mg / m3, and the oil fume concentration is 40 ～ 80mg / m3. 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.
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：At present, the main methods of exhaust control of the setting machine in the printing and dyeing industry and the problems encountered by enterprises in the exhaust control process:
(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。(1) The separate water spraying method can no longer meet the current environmental protection requirements and is gradually eliminated.
(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。(2) Spray + electrostatic adsorption method, because there is no pre-treatment process, it can not meet the current environmental protection requirements, and has been phased out.
(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。(3) Most of the current methods are: pretreatment process + electrostatic adsorption; basically meet the current environmental protection requirements, but most of the pretreatment process is imperfect: filter clogging, heat exchanger clogging, pollutant accumulation, heavy fire hazards, electrostatic adsorption capacity Insufficient, there are hidden safety hazards, the degree of automation is not high, there is no treatment facility for a small amount of VOCs, odor problems, or the use of activated carbon, plasma, photocatalysis, etc. is not suitable for high-humidity printing and dyeing exhaust gas containing oil, wax, and wool. Occasionally, repetitive investment in treatment facilities by printing and dyeing companies is common.
这是本领域人员亟待解决的问题。This is an urgent problem to be solved by those skilled in the art.
发明内容Summary of the invention
本发明的目的是针对现有的技术存在上述问题，提出了一种大气污染物治理工艺，用于解决废气处理工艺不完善的问题。The purpose of the present invention is to address the above problems in the existing technology, and proposes an air pollutant treatment process for solving the problem of incomplete exhaust gas treatment process.
本发明的目的可通过下列技术方案来实现：The object of the present invention can be achieved by the following technical solutions:
一种大气污染物治理工艺，其特征在于，包括步骤：An atmospheric pollutant treatment process, characterized in that it includes steps:
A)进气：将待处理的废气通入废气前处理装置；A) Air intake: the exhaust gas to be treated is passed into the exhaust gas pretreatment device;
B)除毛：废气通过自动除毛机构，以除去废气中的毛絮；B) Hair removal: Exhaust gas passes through an automatic hair removal mechanism to remove lint in the exhaust gas;
C)换热：除毛后的废气通过气水换热机构，与气水换热机构进行热交换，废气温度降低；C) Heat exchange: The exhaust gas after dehairing passes through the gas-water heat exchange mechanism to exchange heat with the gas-water heat exchange mechanism, and the temperature of the exhaust gas decreases;
D)除蜡：换热后的废气通过除蜡除杂机构，以除去废气中的蜡质；D) Wax removal: the exhaust gas after heat exchange passes the wax removal and impurity removal mechanism to remove the wax in the exhaust gas;
E)初次除味：除蜡后的废气通过初级微气泡除味机构，以对废气进行初次除味；E) Primary deodorization: the exhaust gas after dewaxing passes the primary micro-bubble deodorization mechanism to deodorize the exhaust gas for the first time;
F)静电吸附：初次除味后的废气自下而上地通入净化塔，并被静电吸附装置去除废气中的油烟和颗粒物；F) Electrostatic adsorption: the exhaust gas after the initial deodorization passes from bottom to top into the purification tower, and the electrostatic adsorption device removes the oil smoke and particulate matter in the exhaust gas;
G)深度除味：静电吸附后的废气自上而下地通过微纳米气泡深度除味机构，实现深度除味；G) Deep deodorization: the exhaust gas after electrostatic adsorption passes through the micro-nano bubble deep deodorization mechanism from top to bottom to achieve deep deodorization;
H)末端处理：深度除味后的废气自下而上地通过末端白汽去除机构以去除白汽；H) End treatment: The exhaust gas after deep deodorization passes through the terminal white steam removal mechanism from bottom to top to remove white steam;
I)排放：达标后洁净排放。I) Emissions: Clean emissions after reaching the standard.
在上述的大气污染物治理工艺中，废气前处理装置和净化塔相通，废气前处理装置呈横向设置以供废气横向通入净化塔；废气前处理装置的进气端设有通入废气的气动风门，净化塔的末端具有供处理后的废气洁净排放的排气口；废气前处理装置上设有在线清洗机构。In the above air pollutant treatment process, the exhaust gas pretreatment device is connected to the purification tower. The exhaust gas pretreatment device is arranged laterally for the exhaust gas to pass laterally into the purification tower; the intake end of the exhaust gas pretreatment device is provided with a pneumatic The damper and the end of the purification tower have exhaust ports for the clean discharge of the treated exhaust gas; an online cleaning mechanism is provided on the exhaust gas pretreatment device.
在上述的大气污染物治理工艺中，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。In the above air pollutant treatment process, the automatic dehairing 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, and the filter screen has anti-adhesion properties.
在上述的大气污染物治理工艺中，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。In the above air pollutant treatment process, the filter screen is arranged in multiple stages, and the filter screen is distributed in the exhaust gas channel at intervals; the mesh number of the filter screen gradually increases along the intake direction.
在上述的大气污染物治理工艺中，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。In the above air pollutant treatment process, the online cleaning mechanism extends into the exhaust gas channel, and the online cleaning mechanism acts on the automatic hair removal mechanism, gas-water heat exchange mechanism, wax removal and impurity removal mechanism, primary micro-bubble deodorization mechanism and Dewatering and defogging mechanism.
在上述的大气污染物治理工艺中，在线清洗机构包括蒸汽清洗和水清洗双重清洗方式。In the above air pollutant treatment process, the online cleaning mechanism includes dual cleaning methods of steam cleaning and water cleaning.
在上述的大气污染物治理工艺中，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。In the above air pollutant treatment process, the gas-water heat exchange mechanism is an alloy profiled shell and tube heat exchanger with anti-adhesion properties.
在上述的大气污染物治理工艺中，净化塔包括一级塔体、二级塔体和三级塔体，一级塔体呈纵向设置以供废气自下而上通过，废气前处理装置和一级塔体横纵相接，废气前处理装置相接于一级塔体的下端侧部；二级塔体连通一级塔体和三级塔体，二级塔体供气体自上而下延伸，三级塔体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，微纳米气泡深度除味机构设置于二级塔体，末端白气去除机构设置于三级塔体；三级塔体相连风机。In the above air pollutant treatment process, the purification tower includes a primary tower body, a secondary tower body and a tertiary tower body. The primary tower body is arranged longitudinally for the exhaust gas to pass from bottom to top. The exhaust gas pretreatment device and a The towers are connected horizontally and vertically, and the waste gas pretreatment device is connected to the lower side of the primary tower; the secondary tower connects the primary tower and the tertiary tower, and the secondary tower supplies gas from top to bottom. The gas supply for the three-stage tower extends from the bottom to the top and is discharged; the electrostatic adsorption purification device is installed in the first-stage tower, the micro-nano bubble depth deodorization mechanism is located in the second-stage tower, and the terminal white gas removal mechanism is located in the third One-stage tower body; three-stage tower body connected with fan.
在上述的大气污染物治理工艺中，静电吸附装置包括静电场本体和电源，一级塔体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。In the above air pollutant treatment process, the electrostatic adsorption device includes an electrostatic field body and a power source, the bottom of the primary tower body is connected to the sewage outlet pipe, the lower side of the electrostatic field body is provided with a steam automatic cleaning nozzle, and the upper side of the electrostatic field body There is an automatic water cleaning nozzle on the side.
与现有技术相比，本技术方案具有的优势是：Compared with the existing technology, the advantages of this technical solution are:
1、除毛絮时配合正反面蒸汽和水的双重自动在线清洗机构，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；1. The double automatic online cleaning mechanism with steam and water on the front and back sides when removing wool, to minimize wind resistance, realize automatic filtration of wool, automatic online cleaning, and no manual maintenance, which is the prerequisite for stable operation of subsequent workers condition;
2、换热时采用的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；且换热能够实现热量回收；2. The special-shaped structure of the gas-water heat exchange mechanism used in heat exchange is to structurally solve the problems of large wind resistance, low heat exchange efficiency and easy clogging of conventional heat exchangers; it has good corrosion resistance and good anti-scaling performance. The characteristics of good heat transfer performance, low overall wind resistance, long service life and low overall cost; and heat exchange can realize heat recovery;
3、静电吸附所采用的整体结构稳定可靠，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，能够将粘附在管壁上的油蜡混合物清洗干净，能够解决安全隐患问题。3. The overall structure adopted by electrostatic adsorption is stable and reliable. Oil dust is efficiently adsorbed and condensed. It is discharged from the sewage outlet pipeline under the action of gravity. At the same time, the lower part is equipped with steam automatic cleaning nozzles, and the upper part is equipped with water automatic cleaning nozzles. The oil-wax mixture on the wall of the tube is cleaned, which can solve the hidden safety problem.
附图说明BRIEF DESCRIPTION
图1是本发明的印染定型机废气处理设备的结构示意图。FIG. 1 is a schematic structural view of an exhaust gas treatment device of a printing and dyeing machine of the present invention.
图2是本发明的印染定型机废气处理设备的俯视图。2 is a plan view of the exhaust gas treatment equipment of the printing and dyeing machine of the present invention.
图3是本发明的大气污染物治理工艺的工艺流程图。3 is a process flow chart of the air pollutant treatment process of the present invention.
图中，1、废气前处理装置；2、净化塔；3、气动风门；4、排气口；5、在线清洗机构；6、自动除毛机构；7、气水换热机构；8、除蜡除杂机构；9、 初级微气泡除味机构；10、除水除雾机构；11、静电吸附装置；12、微纳米气泡深度除味机构；13、末端白汽去除机构；14、一级塔体；15、二级塔体；16、三级塔体；17、风机。In the picture, 1. Exhaust gas pretreatment device; 2. Purification tower; 3. Pneumatic damper; 4. Exhaust port; 5. Online cleaning mechanism; 6. Automatic hair removal mechanism; 7. Air-water heat exchange mechanism; 8. Wax decontamination mechanism; 9, primary micro-bubble deodorization mechanism; 10, dewatering and demisting mechanism; 11, electrostatic adsorption device; 12, micro-nano bubble depth deodorization mechanism; 13, terminal white vapor removal mechanism; 14, first level Tower; 15. Two-stage tower; 16, Three-stage tower; 17. Fan.
具体实施方式detailed description
以下描述用于揭露本发明以使本领域技术人员能够实现本发明。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。The following description is used to disclose the present invention to enable those skilled in the art to implement the present invention. The preferred embodiments in the following description are only examples, and those skilled in the art can think of other obvious modifications.
如图1至图3所示，本发明提供一种印染定型机废气处理设备，包括废气前处理装置1和采用静电吸附的净化塔2，废气前处理装置1和净化塔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。在线清洗机构5能够解决废气前处理工艺不完善的问题。As shown in FIGS. 1 to 3, the present invention provides an exhaust gas treatment device for a printing and dyeing machine, which includes an exhaust gas pretreatment device 1 and a purification tower 2 using electrostatic adsorption. The exhaust gas pretreatment device 1 and the purification tower 2 are in communication, and the exhaust gas pretreatment The device 1 is arranged horizontally 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, and the end of the purification tower 2 has exhaust gas for the clean discharge of the treated exhaust gas Port 4; the exhaust gas pretreatment device 1 is provided with an online cleaning mechanism 5. The online cleaning mechanism 5 can solve the problem of incomplete exhaust gas pretreatment process.
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。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.
本发明还提供一种大气污染物治理工艺，采用本发明的废气处理设备实现，包括步骤：The invention also provides an atmospheric pollutant treatment process, which is implemented by using the exhaust gas treatment equipment of the invention and includes the steps of:
A)进气：将待处理的废气通入废气前处理装置1；A) Air intake: the exhaust gas to be treated is passed into the exhaust gas pretreatment device 1;
B)除毛：废气通过自动除毛机构6，以除去废气中的毛絮；B) Hair removal: The exhaust gas passes through the automatic hair removal mechanism 6 to remove the fluff in the exhaust gas;
C)换热：除毛后的废气通过气水换热机构7，与气水换热机构7进行热交换，废气温度降低；C) Heat exchange: The exhaust gas after dehairing passes through the gas-water heat exchange mechanism 7 to exchange heat with the gas-water heat exchange mechanism 7, and the temperature of the exhaust gas decreases;
D)除蜡：换热后的废气通过除蜡除杂机构8，以除去废气中的蜡质；D) Wax removal: the exhaust gas after heat exchange passes the wax removal and impurity removal mechanism 8 to remove the wax in the exhaust gas;
E)初次除味：除蜡后的废气通过初级微气泡除味机构9，以对废气进行初次除味；E) Primary deodorization: the exhaust gas after dewaxing passes the primary micro-bubble deodorization mechanism 9 to deodorize the exhaust gas for the first time;
F)静电吸附：初次除味后的废气自下而上地通入净化塔2，并被静电吸附装置11去除废气中的油烟和颗粒物；F) Electrostatic adsorption: the exhaust gas after the initial deodorization passes from bottom to top into the purification tower 2, and the electrostatic adsorption device 11 removes the oil smoke and particulate matter in the exhaust gas;
G)深度除味：静电吸附后的废气自上而下地通过微纳米气泡深度除味机构12，实现深度除味；G) Deep deodorization: The exhaust gas after electrostatic adsorption passes through the micro-nano bubble deep deodorization mechanism 12 from top to bottom to achieve deep deodorization;
H)末端处理：深度除味后的废气自下而上地通过末端白汽去除机构13以去除白汽；H) End treatment: the exhaust gas after deep deodorization passes through the end white steam removal mechanism 13 from bottom to top to remove white steam;
I)排放：达标后洁净排放。I) Emissions: Clean emissions after reaching the standard.
其中，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。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.
值得一提的是，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。It is worth mentioning that, according to the characteristics of the air containing fluff, the automatic depilation mechanism 6 is equipped with an alloy filter screen with good anti-adhesion performance, and a matching support frame is designed and manufactured to match the automatic on-line cleaning mechanism 5 and the matching is reasonable The mesh size of the mesh reduces the wind resistance to the greatest extent, realizes the automatic filtration of the flock, automatic online cleaning, and no manual maintenance, which provides the premise guarantee for the stable operation of the subsequent exhaust gas treatment.
可选择地，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。Optionally, 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 exhibits multi-stage treatment, Improve the treatment effect of wool.
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。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.
在线清洗机构5包括蒸汽清洗和水清洗双重清洗方式。The online cleaning mechanism 5 includes dual cleaning methods of steam cleaning and water cleaning.
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。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.
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。The gas-to-water heat exchange mechanism 7 is an alloy profiled shell-and-tube heat exchanger with anti-adhesion properties.
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。In view of the characteristics of the exhaust gas containing oil fume, particulate matter, waxy material, flocks and comprehensive adherent substances, 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.
值得一提的是，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。It is worth mentioning that 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.
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。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.
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。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.
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；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;
值得一提的是，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。It is worth mentioning that the body of the electrostatic field is a honeycomb vertical electric field (the area of the oil collection and dust collection area of this structure is the highest under the same volume), the spur voltage of the alloy barbed wire structure is low, the specific current density is high, and the oil collection dust collection The most efficient. 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. At the same time, 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.
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。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.
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。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.
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CO2、H2O、N2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)。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 achieve the function of decomposing organic waste gas (VOCs). Organic matter (VOCs) is converted to CO2, H2O, N2 and a part of solid particulate matter (S, P, etc. are converted to the highest valence salts to stabilize, and a stable solid phase exists in ash).
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。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.
值得一提的是，该废气处理设备主体部件全部采用不锈钢，核心部件 采用定制合金材料，确保成套设备的质量可靠、性能稳定，确保长期运行，避免用户企业的重复投资，企业的综合平均成本较低。It is worth mentioning that the main components of the exhaust gas treatment equipment are all made of stainless steel, and the core components are made of custom alloy materials to ensure reliable quality and stable performance of the complete equipment, ensure long-term operation, and avoid repeated investment by user companies. low.
该废气处理设备是模块化设计，功能齐全。可以根据废气的温度、排放量、污染物成分、浓度以及排放要求等，结合使用企业的实际情况做定制调整，以达到最佳的效果。The exhaust gas treatment equipment is modular in design and has complete functions. It can be customized and adjusted according to the temperature, emissions, pollutant composition, concentration and emission requirements of the exhaust gas in combination with the actual situation of the enterprise to achieve the best effect.
此外，该废气处理设备还能把环保和节能充分结合。该废气处理设备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：In addition, the exhaust gas treatment equipment can fully combine environmental protection and energy saving. The exhaust gas treatment equipment adopts anti-adhesion alloy shaped shell and tube heat exchanger, which can use the clean hot water recovered from the high temperature exhaust gas cooling process for the following aspects:
(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。(1), large-scale enterprise users, recover two sections of clean hot water: the first section of 90 ℃ hot water is used for central lithium bromide air-conditioning cooling, and the cooled water is returned to continue heating and circulating operation; the second section of 60 ℃ hot water is used for production process water .
(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。(2) For users who eliminate “visual pollution”, that is, white water vapor at the discharge port, 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 ℃ 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.
(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。(3) For users who obtain hot water for production process, recover clean hot water of 50-70 ℃ (temperature can be adjusted according to actual demand) for production process water.
(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。(4) For users with surplus hot water, we use the sewage discharged after the treatment to meet the standards, such as introducing about 35 ℃ water from the coagulation tank, and cooling the exhaust gas in the special-shaped anti-stick heat exchange tube, 50-60 ℃ The water returns to the sink pool. Because of indirect heat exchange, the water index has not changed, and it will not affect the wastewater discharge index after returning to the pond.
采用本发明的废气处理设备进行废气处理后的排放指标：Emission indicators after exhaust gas treatment using the exhaust gas treatment equipment of the present invention:
(1)、感官指标：(1), sensory indicators:
①、目测基本看不到烟气，既看不到黑灰色气体也看不到白色水汽；① Visually, basically no smoke can be seen, neither black-gray gas nor white water vapor can be seen;
②、鼻子闻基本无明显的刺激性异味。②, the nose smells basically no obvious irritating odor.
(2)、可以达到的排放指标。(2). Achievable emission targets.
本文中所描述的具体实施例仅仅是对本发明精神作举例说明。本发明所属技术领域的技术人员可以对所描述的具体实施例做各种各样的修改或补充或采用类似的方式替代，但并不会偏离本发明的精神或者超越所附权利要求书所定义的范围。The specific embodiments described herein are merely illustrative of the spirit of the present invention. A person skilled in the art to which the present invention pertains can make various modifications or additions to the described specific embodiments or substitute in a similar manner, but does not deviate from the spirit of the present invention or go beyond the definition of the appended claims Scope.
尽管本文较多地使用了废气前处理装置1；净化塔2；气动风门3；排气口4；在线清洗机构5；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；除水除雾机构10；静电吸附装置11；微纳米气泡深度除味机构12；末端白汽去除机构13；一级塔体14；二级塔体15；三级塔体16；风机17等术语，但并不排除使用其它术语的可能性。使用这些术语仅仅是为了更方便地描述和解释本发明的本质；把它们解释成任何一种附加的限制都是与本发明精神相违背的。Although this article uses exhaust gas pretreatment device 1; purification tower 2; pneumatic damper 3; exhaust port 4; online cleaning mechanism 5; automatic hair removal mechanism 6; gas-water heat exchange mechanism 7; wax removal and impurity removal mechanism 8 ; Primary micro-bubble deodorization mechanism 9; dewatering and defogging mechanism 10; electrostatic adsorption device 11; micro-nano bubble depth deodorization mechanism 12; terminal white vapor removal mechanism 13; primary tower body 14; secondary tower body 15; three Stage 16; fan 17 and other terms, but does not exclude the possibility of using other terms. These terms are only used to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitation is contrary to the spirit of the present invention.

Claims (9)

  1. 一种大气污染物治理工艺，其特征在于，包括步骤：An atmospheric pollutant treatment process, characterized in that it includes steps:
    A)进气：将待处理的废气通入废气前处理装置；A) Air intake: the exhaust gas to be treated is passed into the exhaust gas pretreatment device;
    B)除毛：废气通过自动除毛机构，以除去废气中的毛絮；B) Hair removal: Exhaust gas passes through an automatic hair removal mechanism to remove lint in the exhaust gas;
    C)换热：除毛后的废气通过气水换热机构，与气水换热机构进行热交换，废气温度降低；C) Heat exchange: The exhaust gas after dehairing passes through the gas-water heat exchange mechanism to exchange heat with the gas-water heat exchange mechanism, and the temperature of the exhaust gas decreases;
    D)除蜡：换热后的废气通过除蜡除杂机构，以除去废气中的蜡质；D) Wax removal: the exhaust gas after heat exchange passes the wax removal and impurity removal mechanism to remove the wax in the exhaust gas;
    E)初次除味：除蜡后的废气通过初级微气泡除味机构，以对废气进行初次除味；E) Primary deodorization: the exhaust gas after dewaxing passes the primary micro-bubble deodorization mechanism to deodorize the exhaust gas for the first time;
    F)静电吸附：初次除味后的废气自下而上地通入净化塔，并被静电吸附装置去除废气中的油烟和颗粒物；F) Electrostatic adsorption: the exhaust gas after the initial deodorization passes from bottom to top into the purification tower, and the electrostatic adsorption device removes the oil smoke and particulate matter in the exhaust gas;
    G)深度除味：静电吸附后的废气自上而下地通过微纳米气泡深度除味机构，实现深度除味；G) Deep deodorization: the exhaust gas after electrostatic adsorption passes through the micro-nano bubble deep deodorization mechanism from top to bottom to achieve deep deodorization;
    H)末端处理：深度除味后的废气自下而上地通过末端白汽去除机构以去除白汽；H) End treatment: The exhaust gas after deep deodorization passes through the terminal white steam removal mechanism from bottom to top to remove white steam;
    I)排放：达标后洁净排放。I) Emissions: Clean emissions after reaching the standard.
  2. 根据权利要求1所述的大气污染物治理工艺，其特征在于，废气前处理装置和净化塔相通，废气前处理装置呈横向设置以供废气横向通入净化塔；废气前处理装置的进气端设有通入废气的气动风门，净化塔的末端具有供处理后的废气洁净排放的排气口；废气前处理装置上设有在线清洗机构。The air pollutant treatment process according to claim 1, characterized in that the exhaust gas pretreatment device is in communication with the purification tower, the exhaust gas pretreatment device is arranged laterally for the exhaust gas to pass laterally into the purification tower; the intake end of the exhaust gas pretreatment device There is a pneumatic damper that leads to the exhaust gas, and the end of the purification tower has an exhaust port for the clean exhaust of the treated exhaust gas; an online cleaning mechanism is provided on the exhaust gas pretreatment device.
  3. 根据权利要求2所述的大气污染物治理工艺，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。The atmospheric pollutant treatment process according to claim 2, characterized in that the automatic dehairing mechanism includes a support frame and a filter screen, the support frame is fixed on the inner wall of the exhaust gas channel, and the filter screen is detachably fixed on the support frame to filter The net has anti-sticking properties.
  4. 根据权利要求3所述的大气污染物治理工艺，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；过滤网的网眼目数沿着进气方向逐渐增大。The air pollutant treatment process according to claim 3, wherein the filter is arranged in multiple stages, and the filter is distributed in the exhaust gas channel at intervals; the mesh size of the filter gradually increases along the intake direction.
  5. 根据权利要求2所述的大气污染物治理工艺，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。The atmospheric pollutant treatment process according to claim 2, wherein 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 removal and impurity removal mechanism, Primary micro-bubble deodorization mechanism and water and mist removal mechanism.
  6. 根据权利要求5所述的大气污染物治理工艺，其特征在于，在线清洗机构包括蒸汽清洗和水清洗双重清洗方式。The atmospheric pollutant treatment process according to claim 5, wherein the online cleaning mechanism includes a dual cleaning method of steam cleaning and water cleaning.
  7. 根据权利要求5所述的大气污染物治理工艺，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。The air pollutant treatment process according to claim 5, wherein the gas-water heat exchange mechanism is an alloy profiled shell-and-tube heat exchanger with anti-adhesion properties.
  8. 根据权利要求2所述的大气污染物治理工艺，其特征在于，净化塔包括一级塔体、二级塔体和三级塔体，一级塔体呈纵向设置以供废气自下而上通过，废气前处理装置和一级塔体横纵相接，废气前处理装置相接于一级塔体的下端侧部；二级塔体连通一级塔体和三级塔体，二级塔体供气体自上而下延伸，三级塔体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，微纳米气泡深度除味机构设置于二级塔体，末端白气去除机构设置于三级塔体；三级塔体相连风机。The atmospheric pollutant treatment process according to claim 2, characterized in that the purification tower includes a primary tower body, a secondary tower body and a tertiary tower body, the primary tower body is arranged longitudinally for the exhaust gas to pass from bottom to top , The waste gas pretreatment device and the first-stage tower are connected horizontally and vertically, and the waste gas pretreatment device is connected to the lower side of the first-stage tower body; the second-stage tower body connects the first-stage tower body and the third-stage tower body, and the second-stage tower body The gas supply extends from top to bottom, the three-stage tower body supplies gas from bottom to top and discharges outward; the electrostatic adsorption purification device is installed in the first-stage tower body, and the micro-nano bubble depth deodorization mechanism is installed in the second-stage tower body, the end The white gas removal mechanism is set in the three-stage tower body; the three-stage tower body is connected to the fan.
  9. 根据权利要求8所述的大气污染物治理工艺，其特征在于，静电吸附装置包括静电场本体和电源，一级塔体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。The atmospheric pollutant treatment process according to claim 8, characterized in that the electrostatic adsorption device comprises an electrostatic field body and a power source, the bottom of the primary tower body is connected to the sewage outlet pipe, and the lower side of the electrostatic field body is provided with automatic steam cleaning Nozzle, the upper side of the electrostatic field body is equipped with water automatic cleaning nozzle.
PCT/CN2019/072736 2018-11-22 2019-01-22 Treatment process for atmospheric pollutants WO2020103329A1 (en)

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