CN107088353B - Industrial waste gas purifying treatment system - Google Patents

Industrial waste gas purifying treatment system Download PDF

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Publication number
CN107088353B
CN107088353B CN201710378817.6A CN201710378817A CN107088353B CN 107088353 B CN107088353 B CN 107088353B CN 201710378817 A CN201710378817 A CN 201710378817A CN 107088353 B CN107088353 B CN 107088353B
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chamber
digestion
catalytic
magnetizing
cover plate
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CN107088353A (en
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刘广跃
陈堃
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Hefei Delight Human Settlements Environment Technology Co ltd
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Hefei Delight Human Settlements Environment 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
    • B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D47/02—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath
    • B01D47/021—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath by bubbling the gas through a liquid bath
    • 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
    • B01D53/56—Nitrogen oxides
    • 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
    • B01D53/68—Halogens or halogen compounds
    • 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
    • B01D53/76—Gas phase processes, e.g. by using aerosols
    • 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
    • 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
    • B01D53/86—Catalytic processes
    • B01D53/8603—Removing sulfur compounds
    • B01D53/8606—Removing sulfur compounds only one sulfur compound other than sulfur oxides or 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
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/8603—Removing sulfur compounds
    • B01D53/8612—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
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/8621—Removing nitrogen compounds
    • B01D53/8625—Nitrogen oxides
    • B01D53/8628—Processes characterised by a specific catalyst
    • 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
    • B01D53/86—Catalytic processes
    • B01D53/8621—Removing nitrogen compounds
    • B01D53/8625—Nitrogen oxides
    • B01D53/8631—Processes characterised by a specific device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/10—Noble metals or compounds thereof
    • B01D2255/102—Platinum group metals
    • B01D2255/1021—Platinum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/10—Noble metals or compounds thereof
    • B01D2255/102—Platinum group metals
    • B01D2255/1023—Palladium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/10—Noble metals or compounds thereof
    • B01D2255/102—Platinum group metals
    • B01D2255/1025—Rhodium
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biomedical Technology (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Health & Medical Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Treating Waste Gases (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

An industrial waste gas purifying treatment system comprises a catalytic chamber, a magnetizing chamber and a digestion and absorption device; the catalytic chamber and the magnetizing chamber are hollow columnar, the catalytic chamber is communicated with the magnetizing chamber, one end of the catalytic chamber is an exhaust gas inlet, the other end of the magnetizing chamber is inserted into the digestion and absorption device through an exhaust gas pipeline, and digestion and absorption liquid is filled in the digestion and absorption device. The waste gas passes through the catalytic chamber, the magnetizing chamber and the digestion and absorption device step by step, nitrogen oxides and sulfides in the waste gas are removed, meanwhile, the content of PM10 and PM2.5 in smoke dust is reduced, acid mist generated in the magnetizing chamber is neutralized and large particles are filtered out through the digestion and absorption device, the concentration and the formula of the liquid proportion of the digestion tank are determined by the components of the waste gas, and the concentration and the formula of the liquid proportion of the digestion tank are flexibly regulated.

Description

Industrial waste gas purifying treatment system
Technical Field
The invention relates to the technical field of waste gas treatment, in particular to an industrial waste gas purifying treatment system.
Background
Industrial waste gas is a generic term for various pollutant-containing gases that are emitted into the air during the combustion and production processes of fuel in the factory of an enterprise. These exhaust gases are: carbon dioxide, carbon disulphide, hydrogen sulphide, fluorides, nitrogen oxides, chlorine, hydrogen chloride, carbon monoxide, sulphuric acid (mist) lead mercury, beryllium compounds, smoke dust and production dust are discharged into the atmosphere, and air is polluted. These substances enter the human body through different routes of respiratory tract, and some of them directly produce harm, and some of them have accumulation effect, so that they can be more seriously harmful to the health of human body.
The industrial waste gas treatment principle includes various principles such as an active carbon adsorption method, a catalytic combustion method, a catalytic oxidation method, an acid-base neutralization method, a plasma method and the like, and various treatment methods are difficult to effectively remove harmful substances in waste gas due to complex components of the industrial waste gas.
Disclosure of Invention
The invention provides an industrial waste gas purifying treatment system for solving the technical problems.
The technical problems to be solved by the invention are realized by adopting the following technical scheme.
An industrial waste gas purifying treatment system comprises a catalytic chamber, a magnetizing chamber and a digestion and absorption device; the catalytic chamber and the magnetizing chamber are hollow columnar, the catalytic chamber is communicated with the magnetizing chamber, one end of the catalytic chamber is an exhaust gas inlet, the other end of the magnetizing chamber is inserted into the digestion and absorption device through an exhaust gas pipeline, and digestion and absorption liquid is filled in the digestion and absorption device.
The catalytic chamber is characterized in that a front cover plate and a rear cover plate with circular through holes are respectively arranged at two ends of the catalytic chamber, an annular catalytic reaction cover is arranged in the catalytic chamber, the central axis of the annular catalytic reaction cover coincides with the central axis of the catalytic chamber, one end of the annular catalytic reaction cover is closed, the other end of the annular catalytic reaction cover is open, the open end of the annular catalytic reaction cover is fixed on the rear cover plate, the closed end of the annular catalytic reaction cover is provided with small holes towards the front cover plate, and the inner wall of the closed end of the annular catalytic reaction cover is provided with a vortex generator.
The diameter of the circular through hole on the front cover plate of the catalytic chamber is larger than that of the circular through hole on the rear cover plate.
The inner wall of the catalytic chamber is close to the front cover plate and provided with an atomizer.
The annular catalytic reaction cover is internally provided with a secondary reaction cover, the opening end of the secondary reaction cover is fixed on the rear cover plate, and secondary catalysis is carried out on gas through the secondary reaction cover.
And a backflow prevention valve is arranged on the outer wall of the rear cover plate of the catalytic chamber, so that waste gas is prevented from flowing back into the catalytic chamber.
The atomizer comprises a high-pressure pump, a water inlet is formed in the side wall of the high-pressure pump, a cover plate is arranged at one end of a water outlet of the high-pressure pump, the water outlet of the high-pressure pump is connected with a core body, a fog cover is arranged at the outer side of the core body, and one end of the fog cover is fixed on the cover plate.
An ozone generator is arranged on the inner wall of the magnetizing chamber near the joint of the magnetizing chamber and the catalytic chamber, a magnet is tightly attached to the inner wall of the magnetizing chamber, and a descaling device is arranged on the inner wall of the magnetizing chamber and between the ozone generator and the magnet.
The inner wall of the magnetizing chamber is provided with 2-4 ozone generators, magnets and descaling devices on different sections at intervals.
The digestion and absorption device comprises a digestion and absorption tank, digestion liquid is placed in the digestion and absorption tank, the tail end of an exhaust gas pipeline is inserted into the digestion liquid and connected with an exhaust pipe, a PH meter, a thermometer and a pressure meter are respectively arranged on the inner wall of the digestion and absorption tank, the PH meter, the thermometer and the pressure meter are respectively connected with a data acquisition controller, the data acquisition controller is connected with a controller, the controller is connected with a dosing pump, an outlet pipe of the dosing pump extends into the digestion and absorption tank, and a medicament enters from an inlet pipe of the dosing pump.
The beneficial effects of the invention are as follows: the waste gas passes through the catalytic chamber, the magnetizing chamber and the digestion and absorption device step by step, nitrogen oxides and sulfides in the waste gas are removed, meanwhile, the content of PM10 and PM2.5 in smoke dust is reduced, acid mist generated in the magnetizing chamber is neutralized and large particles are filtered out through the digestion and absorption device, the concentration and the formula of the liquid proportion of the digestion tank are determined by the components of the waste gas, and the concentration and the formula of the liquid proportion of the digestion tank are flexibly regulated.
Drawings
FIG. 1 is a schematic diagram of the present invention;
FIG. 2 is a schematic cross-sectional view of a catalytic chamber of the present invention;
FIG. 3 is a schematic view of a nebulizer of the invention;
FIG. 4 is a schematic view of a magnetization chamber according to the present invention;
FIG. 5 is a schematic view of a digestion and absorption tank in accordance with the present invention.
Detailed Description
The invention is further described with reference to the following detailed drawings in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the implementation of the invention easy to understand.
As shown in fig. 1, an industrial waste gas purifying treatment system comprises a catalytic chamber 1, a magnetizing chamber 2 and a digestion and absorption device 3; the catalytic chamber 1 and the magnetizing chamber 2 are hollow columnar, the catalytic chamber 1 is communicated with the magnetizing chamber 2, one end of the catalytic chamber 1 is an exhaust gas inlet, the other end of the magnetizing chamber 2 is inserted into the digestion and absorption device 3 through an exhaust gas pipeline 4, and digestion and absorption liquid is filled in the digestion and absorption device 3.
The cross sections of the catalytic chamber 1 and the magnetizing chamber 2 are round or square.
As shown in fig. 2, the two ends of the catalytic chamber 1 are respectively provided with a front cover plate 18 and a rear cover plate 19 with circular through holes, the diameter of the circular through holes on the front cover plate 18 is larger than that of the circular through holes on the rear cover plate 19, the annular catalytic reaction cover 13 is arranged in the catalytic chamber 1, the central axis of the annular catalytic reaction cover 13 coincides with that of the catalytic chamber 1, one end of the annular catalytic reaction cover 13 is closed, the other end of the annular catalytic reaction cover is open, the open end of the annular catalytic reaction cover is fixed on the rear cover plate 19, the closed end of the annular catalytic reaction cover 13 is provided with a small hole 16 towards the front cover plate 18, the vortex generator 12 is arranged on the inner wall of the closed end of the annular catalytic reaction cover 13, waste gas enters the annular catalytic reaction cover 13 from the small hole 16 to drive the vortex generator 12 to rotate, so that vortex is generated in the annular catalytic reaction cover 13, the inner wall of the catalytic chamber 1 is provided with an atomizer 11 near the front cover plate 18 at intervals, waste gas entering the catalytic chamber 1 is atomized by the atomizer 11, the open end of the annular catalytic reaction cover 14 is further provided with a secondary reaction cover 14 in the annular catalytic reaction cover 1, the open end of the secondary reaction cover 14 is fixed on the rear cover plate 19, the secondary reaction cover 14 is catalyzed by the secondary reaction cover 1, the reverse flow preventing the waste gas from flowing back into the catalytic chamber 1.
Fig. 3 shows an atomizer 11 in the invention, the atomizer 11 comprises a high-pressure pump 112, a water inlet 111 is arranged on the side wall of the high-pressure pump 112, a cover plate 115 is arranged at one end of a water outlet of the high-pressure pump 112, the water outlet of the high-pressure pump 112 is connected with a core 113, water sprayed from the water outlet of the high-pressure pump 112 is atomized through the core 113, a fog cover 114 is arranged at the outer side of the core 113, and one end of the fog cover 114 is fixed on the cover plate 115.
The magnetizing chamber 2 is shown in fig. 4, an ozone generator 21 is arranged on the inner wall of the magnetizing chamber 2 near the joint with the catalytic chamber 1, a magnet 22 is tightly attached to the inner wall of the magnetizing chamber 2, the magnet 22 is preferably a ring magnet, a descaling device 23 is arranged between the ozone generator 21 and the magnet 22 on the inner wall of the magnetizing chamber 2, and 2-4 ozone generators 21, magnets 22 and descaling devices 23 can be respectively arranged on different sections of the inner wall of the magnetizing chamber 2 at intervals.
Fig. 4 shows a digestion and absorption device 3 in the invention, which comprises a digestion and absorption tank 311, a digestion liquid 301 is placed in the digestion and absorption tank 311, the tail end of an exhaust gas pipeline 4 is inserted into the digestion liquid 301 and connected with an exhaust pipe 304, the exhaust pipe 304 is preferably rectangular plate-shaped to increase the contact area between the exhaust gas and the digestion liquid 301, a PH meter 306, a thermometer 307 and a pressure meter 308 are arranged on the inner wall of the digestion and absorption tank 311, the PH meter 306, the thermometer 306 and the pressure meter 307 are respectively connected with a data acquisition controller 310, the PH meter 306, the thermometer 307 and the pressure meter 308 detect various indexes of the digestion liquid 301 in the digestion and absorption tank 311 and feed data back to the data acquisition controller 310, the data acquisition controller 310 is connected with the controller 305, the controller 305 is connected with a dosing pump 303, an outlet pipe of the dosing pump 303 stretches into the digestion and the absorption tank 311, the outlet pipe is connected 309, and a medicament enters from an inlet pipe 302 of the dosing pump 303, and when the PH meter 306, the thermometer 307 and the pressure meter 308 detect various indexes of the digestion liquid 301 deviate from set values, the data acquisition controller 310 sends a signal to the controller 305, and the dosing controller 305 sends commands to start the dosing pump 311.
The working principle of the invention is as follows: the main components of industrial waste gas are nitrogen oxides (NOx), sulfides (SO 2) and the like, the gas hazard is the largest, and meanwhile, the content of PM10 and PM2.5 in smoke dust is higher.
The high temperature gas enters the catalytic chamber 1, the water mist generated by the atomizer 11 reduces the temperature of the high temperature gas to a temperature suitable for catalytic reaction of the catalyst, nitrogen oxides and sulfides in the exhaust gas enter the catalytic chamber 1 to be catalytically decomposed by the annular catalytic reaction cover 13 ((rhodium (Rh), palladium (Pd) and platinum (Pt)), such as decomposition reaction NO- & gt 1/2N2+1/2O2, wherein Pt and Pd have high activity on oxidation and removal of CO and HC, rh has excellent catalytic reduction effect on NO, N0 can be selectively reduced to N2, and generation of NH3 is restrained.
The efficacy of the atomizer of the invention: the particles in the flue gas, nitrogen oxides and sulfides which are not catalyzed and reduced form larger particles with water vapor, similar to the formation of acid rain, NO- > HNO3 and HNO2 enter a reaction tank and alkali liquid in a digestion tank to be neutralized into harmless salt substances. The high-strength magnet has the functions of adsorbing metal particles and charged ion particles, and further purifying particulate matters in waste gas
An ozone generator in the magnetizing chamber generates a large amount of ozone, and the ozone reacts with nitrogen oxide to generate nitrogen with the reaction formula:
N2O+O--->N2+O2，N2+O2--->2NO
NO+O3--->NO2+O2，NO2+O--->NO+O2
O3+0--->202
the digestion tank has the effects that: the concentration and formulation of the liquid formulation of the digestion tank is determined by the composition of the exhaust gas, neutralizing the acid remaining in the magnetization chamber and filtering out large particles. The basic components are ammonia water, sodium chloride and the like.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present invention, and are not intended to limit the invention, and that various changes and modifications may be made therein without departing from the spirit and scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (1)

1. An industrial waste gas purifying treatment system, which is characterized in that: comprises a catalytic chamber, a magnetizing chamber and a digestion and absorption device; the catalytic chamber and the magnetizing chamber are hollow columnar, the catalytic chamber is communicated with the magnetizing chamber, one end of the catalytic chamber is an exhaust gas inlet, the other end of the magnetizing chamber is inserted into the digestion and absorption device through an exhaust gas pipeline, and digestion and absorption liquid is filled in the digestion and absorption device;
the two ends of the catalytic chamber are respectively provided with a front cover plate and a rear cover plate with circular through holes, an annular catalytic reaction cover is arranged in the catalytic chamber, the central axis of the annular catalytic reaction cover coincides with the central axis of the catalytic chamber, one end of the annular catalytic reaction cover is closed, the other end of the annular catalytic reaction cover is open, the open end of the annular catalytic reaction cover is fixed on the rear cover plate, the closed end of the annular catalytic reaction cover is provided with small holes towards the front cover plate, and the inner wall of the closed end of the annular catalytic reaction cover is provided with a vortex generator;
the diameter of the circular through hole on the front cover plate of the catalytic chamber is larger than that of the circular through hole on the rear cover plate;
the inner wall of the catalytic chamber is close to the front cover plate and provided with an atomizer;
a secondary reaction cover is arranged in the annular catalytic reaction cover, and the opening end of the secondary reaction cover is fixed on the rear cover plate;
the outer wall of the rear cover plate of the catalytic chamber is provided with a backflow prevention valve;
the atomizer comprises a high-pressure pump, a water inlet is formed in the side wall of the high-pressure pump, a cover plate is arranged at one end of a water outlet of the high-pressure pump, the water outlet of the high-pressure pump is connected with a core body, a fog cover is arranged at the outer side of the core body, and one end of the fog cover is fixed on the cover plate;
an ozone generator is arranged on the inner wall of the magnetizing chamber close to the joint of the magnetizing chamber and the catalytic chamber, a magnet is tightly attached to the inner wall of the magnetizing chamber, and a descaling device is arranged between the ozone generator and the magnet on the inner wall of the magnetizing chamber;
2-4 ozone generators, magnets and descaling devices are respectively arranged on different sections of the inner wall of the magnetizing chamber at intervals;
the digestion and absorption device comprises a digestion and absorption tank, digestion liquid is placed in the digestion and absorption tank, the tail end of the waste gas pipeline is inserted into the digestion liquid and connected with an exhaust pipe, a PH meter, a thermometer and a pressure meter are respectively arranged on the inner wall of the digestion and absorption tank, the PH meter, the thermometer and the pressure meter are respectively connected with a data acquisition controller, the data acquisition controller is connected with a controller, the controller is connected with a dosing pump, an outlet pipe of the dosing pump extends into the digestion and absorption tank, and a medicament enters from an inlet pipe of the dosing pump;
the high temperature gas enters a catalytic chamber, the water mist generated by the atomizer reduces the temperature of the high temperature gas to a temperature suitable for catalytic reaction of a catalyst, nitrogen oxides and sulfides in the waste gas enter the catalytic chamber to be catalytically decomposed by rhodium (Rh), palladium (Pd) and platinum (Pt) in an annular catalytic reaction cover,
the digestion solution serves to neutralize the acid remaining in the magnetization chamber and to filter out large particles.
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CN109847547A (en) * 2019-04-08 2019-06-07 重庆中科检测技术服务有限公司 A kind of heavy metal chelant and preparation method thereof
CN111707621B (en) * 2020-06-24 2023-09-29 台州市路桥铭泰钣金股份有限公司 Waste gas concentration detects quick-witted gas washing device for tunnel construction
CN111905504A (en) * 2020-07-03 2020-11-10 王保林 Industrial waste gas and metal particulate matter processing apparatus in waste gas

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