CN109381963A - Organic exhaust gas recovery and processing system and method - Google Patents
Organic exhaust gas recovery and processing system and method Download PDFInfo
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- CN109381963A CN109381963A CN201811142672.0A CN201811142672A CN109381963A CN 109381963 A CN109381963 A CN 109381963A CN 201811142672 A CN201811142672 A CN 201811142672A CN 109381963 A CN109381963 A CN 109381963A
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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
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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
- B01D53/005—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by heat treatment
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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
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
-
- 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
- B01D53/8678—Removing components of undefined structure
- B01D53/8687—Organic components
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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
- B01D53/86—Catalytic processes
- B01D53/8696—Controlling the catalytic process
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
- F23G7/061—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating
- F23G7/063—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating electric heating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
- F23G7/07—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases in which combustion takes place in the presence of catalytic material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0258—Other waste gases from painting equipments or paint drying installations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
- B01D2259/40088—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating
- B01D2259/4009—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating using hot gas
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2209/00—Specific waste
- F23G2209/14—Gaseous waste or fumes
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Treating Waste Gases (AREA)
Abstract
A kind of organic exhaust gas recovery and processing system, including Rose Box, adsorbent equipment and catalytic oxidizing equipment, organic exhaust gas removes particle and dust after Rose Box, exhaust gas enters adsorbent equipment by being seated in two sides activated carbon adsorption purification later, gas after absorption can direct qualified discharge, use hot-air desorption and regeneration after activated carbon adsorption saturation, the high-concentration organic waste gas for being desorbed out enters catalytic oxidizing equipment and carries out catalytic oxidation treatment.It by using " filtering+activated carbon adsorption+catalytic oxidizing equipment ", can make that exhaust-gas treatment is safe and reliable, treatment effeciency is high, secondary pollution will not be generated.In addition, 8000h is just needed replacing cellular activated carbon under normal conditions, use cost is low, and maintenance cost is low.
Description
Technical field
The invention belongs to exhaust-gas treatment fields, and in particular to a kind of lacquer spraying waste gas recovery and processing system and method.
Background technique
A certain amount of organic exhaust gas is generated in spray painting.These organic exhaust gas can cause environment if do not handled direct emission
Pollution pollutes outside atmosphere, influences the health of people, therefore, it is necessary to the exhaust gas distributed is collected and is dealt carefully with,
High altitude discharge after innoxious.
Organic Waste Gas Pollution species are various, and characteristic is different, therefore the administering method accordingly used is also different, commonly use
Have: condensation method, absorption process, absorption method, bioanalysis, catalytic oxidation etc.；Some new works are also developed by foreign countries in recent years
Skill technology: bioanalysis, low-temperature plasma method etc., above method have certain limitation when being used alone.Various processing methods
Rationalization combine, can make up for it deficiency existing for single treatment method, preferably meet the processing requirement of organic exhaust gas.
Summary of the invention
The characteristics of exhaust gas generated when it is an object of the invention to for spray painting, designs corresponding exhaust treatment system and side
Method, lacquer spraying waste gas belong to organic mixed gas of Wind Volume, low concentration, low temperature, and the present invention, which makes up, is used alone existing processing
The deficiency of technology, specific technical solution are as follows:
A kind of organic exhaust gas recovery and processing system, including Rose Box, adsorbent equipment and catalytic oxidizing equipment, organic exhaust gas warp
Particle and dust are removed after crossing Rose Box, exhaust gas enters adsorbent equipment by being seated in two sides activated carbon adsorption purification, absorption later
Gas afterwards can direct qualified discharge, use hot-air desorption and regeneration after activated carbon adsorption saturation, the high concentration for being desorbed out has
Machine exhaust gas enters catalytic oxidizing equipment and carries out catalytic oxidation treatment；The catalytic oxidizing equipment is removed by purification device main body 3, back-fire relief
The most of composition of dirt device 1, air-introduced machine 7, control system 8 four；Wherein purification device main body 3 include: heat exchanger 2, it is preheater 4, pre-
Catalytic combustor 5 and main catalytic combustion chamber 6；High concentration that active carbon is desorbed out, small air quantity, high-temperature organic exhaust gas through hindering
After fiery deduster 1 filters, energy indirect exchange is carried out into the high-temperature gas after heat exchanger 2, and catalysis reaction, at this time exhaust gas source
Temperature obtain for the first time promoted；Gas with certain temperature enters preheater 4, carries out secondary temperature promotion；Later
Into pre- catalytic combustor 5, first order catalysis reaction is carried out, organic exhaust gas partly decomposes at low temperature at this time, and releases energy
Amount, directly heats exhaust gas source, and gas temperature is increased to the optimum temperature of catalysis reaction；It is examined through system for detecting temperature
It surveys, temperature meets the temperature requirement of catalysis reaction, and into main catalytic combustion chamber 6, organic gas mentions thorough decomposition, discharges simultaneously
A large amount of heat out；Thermal energy conversion is provided cold airflow by heat exchanger 2 by purified gas, and gas is by air-introduced machine 7 after cooling
Emptying.
Further, wherein the Rose Box uses automatic roll filter, it is converted to by pressure difference before and after filter
Transducing signal realizes the automation of filter material replacement, and the Rose Box is used to remove particle and dust, mainly by filtrate, biography
Dynamic system and automatic control system composition.
Further, the filtering material is mounted in feeding box, when air inlet passes through auto reeling type with high concentration dust laden air
After filter, pressure difference increases with dust filtering and is gradually risen before and after filter；When filter resistance rises to the whole Resistance Value of setting
When, pressure difference switch starts to act, and reel system updates filtrate；When reaching the roller shutter time, stop transmission, updates filtrate and worked
Finish, re-starts filtering.
Further, using 8 activated carbon adsorption beds to exhaust gas carry out adsorption/desorption processing, Adsorption efficiency 90% with
On.
Further, the adsorbent equipment uses activated carbon adsorption layer, built-in active carbon layer and air distributor, net to be concentrated
Change organic gas.
Further, the pre- catalytic combustor 5 uses drawer type, and built-in honeycombed catalyst, plug-in heating group is divided in centre
Part makes honeycombed catalyst temperature reach reaction temperature, decomposes partial organic substances, release using infrared radiation principle
Energy is released, directly promotes exhaust gas temperature.
Further, the electric heating assembly can automatically control compensation and stop according to the temperature fluctuation of exhaust gas；Work as reaction
When high temperature occurs in temperature, it is automatically stopped electrically heated power supply, temperature can start automatically after reducing, and restore to work normally.
Further, the monitoring of control system 8 institute is dynamic lights dynamic, stopping, failure, reflects gas in entire operation process
The heating of body, gas decompose situation, carry out the protection of all-position safety power to equipment whole process, can according to exhaust gas source property and
Production line state is set.
The present invention also provides a kind of organic exhaust gas recovery and treatment method, using organic exhaust gas recovery and processing system as above,
Organic exhaust gas removes particle and dust after Rose Box, and exhaust gas enters adsorbent equipment by being seated in two sides activated carbon adsorption later
Purification, gas after absorption can direct qualified discharge, use hot-air desorption and regeneration after activated carbon adsorption saturation, be desorbed out
High-concentration organic waste gas enters catalytic oxidizing equipment and carries out catalytic oxidation treatment.
The application's the utility model has the advantages that
The characteristics of exhaust gas generated when the application is for spray painting, designs corresponding exhaust treatment system, and lacquer spraying waste gas belongs to greatly
Organic mixed gas of air quantity, low concentration, low temperature, using at the purification of cellular activated carbon Adsorption Concentration after such exhaust gas filtering
Reason, treated the direct qualified discharge of exhaust gas, meanwhile, hot-air desorption and regeneration is used after activated carbon adsorption saturation, desorption comes out
High-concentration organic waste gas enter catalytic oxidizing equipment (RCO) carry out catalytic oxidation treatment, this exhaust-gas treatment mode adsorption cleaning
Efficiency is relatively high.By using " filtering+activated carbon adsorption+RCO catalytic oxidizing equipment ", can make exhaust-gas treatment it is safe and reliable,
Treatment effeciency is high, will not generate secondary pollution.In addition, 8000h is just needed replacing cellular activated carbon under normal conditions, use cost
Low, maintenance cost is low.
Detailed description of the invention
1. Fig. 1 is organic exhaust gas recovery and processing system structural block diagram.
2. the structural schematic diagram that Fig. 2 is catalytic oxidizing equipment.
In figure: back-fire relief deduster 1；Heat exchanger 2；Purification device main body 3；Preheater 4；Pre- catalytic combustor 5；Main catalytic combustion
Burn room 6；Air-introduced machine 7；Control system 8.
Specific embodiment
The present invention will be further described with reference to the accompanying drawing organic exhaust gas recovery and processing system and its technique of the invention
Process.
The exhaust gas major pollutants generated when spray painting are benzene,toluene,xylene and non-methane total hydrocarbons, and concentration generally exists
250mg/m3Within, temperature is room temperature, and the present invention designs a kind of organic exhaust gas recovery and processing system, referring to Fig. 1, including filtering
Case, adsorbent equipment and catalytic oxidizing equipment, organic exhaust gas remove particle and dust after Rose Box, and exhaust gas enters absorption later
Device by being seated in two sides activated carbon adsorption purification, gas after absorption can direct qualified discharge, adopt after activated carbon adsorption saturation
With hot-air desorption and regeneration, the high-concentration organic waste gas for being desorbed out enters catalytic oxidizing equipment and carries out catalytic oxidation treatment.
One, Rose Box
Wherein the Rose Box uses automatic roll filter, it is converted to sensing letter by pressure difference before and after filter
Number, the automation of filter material replacement is realized, the Rose Box is used to remove particle and dust, mainly by filtering material, transmission
System and automatic control system composition.Filtering material is mounted in feeding box, rolls up automatically when air inlet passes through with high concentration dust laden air
After wound filter, pressure difference increases with dust filtering and is gradually risen before and after filter；When filter resistance rises to the whole resistance of setting
When force value, pressure difference switch starts to act, and reel system updates filtrate；When reaching the roller shutter time, stop transmission, updates filtrate work
It finishes, re-starts filtering.The Rose Box is firm in structure, can satisfy worst working environment, modular design energy
Enough meet any type of system design and installation requirement, granule dust removal efficiency is up to 95% or more after filtering.
Two, adsorbent equipment
Effect of the exhaust gas containing organic matter through blower is big using the more micropore specific areas of active carbon through activated carbon adsorption layer
Adsorption capacity good general's organic substance be adsorbed in activated carbon capillary, clean gas is discharged；After a period of time, active carbon reaches
When saturation state, stop absorption, organic matter has been concentrated in active carbon at this time.Recycle catalysis burning to saturated activity charcoal
Desorption and regeneration is carried out, is put back into.
Organic mixed waste gas to be processed is through removing dust and impurity part in exhaust gas by pretreated filter box, otherwise
Directly absorption can block the miniature hole of active carbon, even fail to influence adsorption effect, " relatively pure after primary filtration
Organic exhaust gas " enter adsorbent equipment and carry out adsorption cleaning processing, organic substance is trapped in it by the distinctive active force of active carbon
Inside, clean gas is through smoke stack emission into atmosphere, and after adsorbing after a period of time, active carbon reaches saturation state, according to
The active-carbon bed of saturation active-carbon bed is carried out replacing switching by PLC automatic control program with stand-by after desorption.Catalysis oxidation dress
Set (RCO) automatic heating by hot-air by blower be sent into it is active-carbon bed make carbon-coating heating by organic matter from active carbon " steaming "
Out, the exhaust gas for being desorbed out belong to high concentration, small air quantity, high-temperature organic exhaust gas.
This project processing exhausted air quantity is big, and (processing exhausted air quantity is up to 142000m3/ h), the not high (250mg/m of concentration3), design
8 activated carbon adsorption beds are used to carry out adsorption/desorption processing (working method is inhaled 1 for 7 and taken off), Adsorption efficiency 90% to exhaust gas
More than, the gas after absorption can direct qualified discharge.High concentrations of gas after desorption is using RCO (processing exhausted air quantity 3000m3/h)
Technique is further processed qualified discharge, heats desorption gas to desorption temperature using RCO furnace high-temperature flue gas, takes off for active carbon
It is attached, to save energy consumption.
The adsorbent equipment uses activated carbon adsorption layer, built-in active carbon layer and air distributor, organic with thickening-purification technology
Gas is the main component and core process of first major cycle of whole system, the filling of active carbon brick type.Exhaust gas enters absorption
Device improves purification efficiency by being seated in two sides activated carbon adsorption purification, by low adsorption case adsorption flow rate.
Active carbon is selected using high-quality anthracite as raw material, shape honeycomb, and, ratio high with intensity is mainly characterized in that:
Surface area is larger, adsorption capacity is high, adsorption rate is fast, pore structure is flourishing, pore size is between cocoanut active charcoal and wooden work
Between property charcoal.Cellular activated carbon specifications parameter is shown in Table 1
1 cellular activated carbon specifications parameter of table
VOCs initial concentration is about 250mg/m3, according to People's Republic of China's air pollution zone discharge standard, " atmosphere is dirty
Contaminate object discharge standard " (GB16297-1996) secondary discharge standard, it is desirable that VOCs concentration is about 120mg/m after processing3, it is desirable that it goes
Except efficiency > 90%.It is 20000m that active carbon sheet bed, which handles air quantity,3/ h is designed then active-carbon bed according to the continous way method of operation
Quantity is 8, active-carbon bed to be desorbed after absorption.Active-carbon bed design empty tower gas velocity 1.0m/s, residence time are
0.5s。
Three, catalytic oxidizing equipment
High concentrations of gas after desorption is using catalysis oxidation (RCO) (processing exhausted air quantity 3000m3/ h) technique is further processed
Qualified discharge heats desorption gas to desorption temperature using RCO furnace high-temperature flue gas, is desorbed for active carbon, to save energy consumption.
Catalytic oxidizing equipment is to make combustible component in pernicious gas oxygenolysis at a lower temperature using catalyst
Purification method.Entered in the RCO furnace that temperature is 250-300 DEG C with the high-concentration waste gas that active carbon is desorbed out, is urged in noble metal
Under the action of agent, CnHm and organic molten Ji steam oxidation are decomposed and generated RCO2And H2O simultaneously releases amount of heat, thus
Bad decomposition VOCs molecule is cutd open, reaction equation of the VOCs in RCO furnace is as follows:
Referring to fig. 2, the electric heating catalytic oxidizing equipment is by purification device main body 3, back-fire relief deduster 1, air-introduced machine 7, control
The most of composition of system 8 four processed.Wherein purification device main body 3 includes: heat exchanger 2, preheater 4, pre- catalytic combustor 5 and main reminder
Change combustion chamber 6.
High concentration that active carbon is desorbed out, small air quantity, high-temperature organic exhaust gas after the filtering of back-fire relief deduster 1, into
High-temperature gas after entering plate heat exchanger 2, and catalysis reaction carries out energy indirect exchange, and the temperature of exhaust gas source obtains first at this time
Secondary promotion；Gas with certain temperature enters preheater 4, carries out secondary temperature promotion；Enter pre- catalysis burning later
Room 5 carries out first order catalysis reaction, and organic exhaust gas partly decomposes at low temperature at this time, and gives off energy, and carries out to exhaust gas source
It directly heats, gas temperature is increased to the optimum temperature of catalysis reaction；It is detected through system for detecting temperature, it is anti-that temperature meets catalysis
The temperature requirement answered, into main catalytic combustion chamber 6, organic gas mentions thorough decomposition, while releasing a large amount of heat；Purification
Thermal energy conversion is provided cold airflow by heat exchanger 2 by gas afterwards, and gas is emptied by air-introduced machine 7 after cooling.Organic matter utilizes certainly
The heat that body oxidizing fire releases maintains spontaneous combustion, if desorption exhaust gas concentration is sufficiently high, electric heating catalytic oxidizing equipment is normal
Using needing seldom electrical power to heat even without electrical power, accomplish real energy-saving and environmental protection, meanwhile, package unit peace
Entirely, reliably, without any secondary pollution.
Wherein, back-fire relief deduster 1: the dangerous barrier between equipment and exhaust gas source is come, guarantees processing equipment and production
Safety between equipment, while removing the dust in exhaust gas source.Structure is ripple net type and the cotton that comes, referring to national standard system
It makes, replacement is quick, and cleaning is convenient.It is one of safety devices in this equipment.
Heat exchanger 2 organic gas is decomposed after thermal energy and exhaust gas source cold airflow carry out cold and hot exchange, replace thermal energy, improve
The temperature of exhaust gas source.When exhaust gas concentration reaches certain value, pass through the effect of heat exchanger, it is ensured that equipment is without operation power
It runs well in the state of (or low-power), is that first time temperature lifting device is carried out to exhaust gas source in arrangement for catalytic purification,
It is one of energy saving facility in equipment；Reasonable control by internal heat exchanger to air-flow, guarantees efficiency of heat exchanger
50% or more.The heat exchanger 2 uses plate heat exchanger, and structure uses Q235 cold-rolled steel steel plate system, reasonable to arrange, makes cold and hot
Air-flow comprehensive engagement, energy are replaced comprehensively.
Preheater 4: exhaust gas source detects, catalysis is not achieved in temperature before entering pre- catalytic combustor 5 through temperature monitor
The condition of reaction is carried out second of promotion of temperature by the electric heating system being arranged in preheater 4；Q235 electric heating assembly is
Infrared ray heating tube is fixed by fixed insulation board, and maintenance replacement is very convenient.
Catalytic reaction chamber: catalytic reaction chamber includes 6 second order reaction area of pre- catalytic combustor 5 and main catalytic combustion chamber.Reach
The organic exhaust gas of temperature condition enters pre- catalytic combustor 5；Pre- catalytic combustor 5 use drawer type, built-in honeycombed catalyst,
Plug-in heating component is divided in centre, using infrared radiation principle, honeycombed catalyst temperature is made to reach reaction temperature, there is part
Machine object is decomposed, and is given off energy, and directly promotes exhaust gas temperature, and catalysis is also made to heat up；Organic gas after temperature promotion
Into main catalytic combustion chamber, built-in cellular shape catalyst, the organic gas for meeting reaction condition decomposes completely herein, and exhaust gas becomes
Clean gas.
The 7 high temperature resistant slow-speed of revolution of air-introduced machine guarantees that working effect guarantees that fan noise is no more than 85dB simultaneously, without secondary dirt
Dye is the power source of whole device air-flow operating.Configure vibration damping pedestal and damper.
The monitoring of control system 8 institute is dynamic to light dynamic, stopping, failure, reflects the heating of gas, gas in entire operation process
Body decomposes situation, carries out the protection of all-position safety power to equipment whole process, can be linear according to exhaust gas source property and production
State is set.The mild gas reaction temperature of heating by the exhaust gases is shown in control system 8, is apparent that gas oxygenolysis is imitated
Fruit.The serviceable condition of electric heating assembly working condition and electric heating assembly can be understood from control system 8, power supply has well
Ground ground connection and safeguard measure.Whole system is negative pressure working method, and excessive phenomenon is not present in exhaust gas.
Electric heating assembly is infrared ray electric heat pipe, utilizes electrically heated radiation theory.Electric heating tube byHigh temperature light wall pipe
Liner high-temperature oxydation magnesium and electric heating wire composition, have the characteristics that high-efficient, rapid heat dissipation, service life are long.Electric heating assembly can root
According to the temperature fluctuation of exhaust gas, automatically controls compensation and stop；When high temperature occurs in reaction temperature, it is automatically stopped electrically heated electricity
Source, temperature can start automatically after reducing, and restore to work normally.
Its performance parameter is shown in Table 6:
6 electric heating assembly parameter of table
| Electrical power | NkW | Power deviation | ± 10% |
| Cold insulation resistance | 200MΩ | Ageing time | 3000h |
| Hot insulation resistance | ≥5MΩ | Pulling force | ≥998N |
Catalyst is to change reaction temperature in chemical reaction and itself composition and weight remain unchanged after the reaction
Substance.The catalyst model TFJF/ industrial waste gas VOC cleaning catalyst selected in the present apparatus has high activity, high temperature resistant
And the features such as long service life.
The import of device is provided with back-fire relief deduster 1, by any dangerous disconnection between production line and processing equipment, simultaneously
The dust in exhaust gas source is handled, guarantees the cleanliness of exhaust gas.Unit normal run.It is logical that fire arrester should be able to be effectively prevented flame
It crosses.Provided with pressure relief opening in catalytic reaction chamber, when between the pressure 30-80Kpa inside equipment, releasing pressure automatically makes equipment
Always it runs in the secure state.
Catalytic oxidizing equipment outer surface is kept the temperature with insulating heat insulating material, makes 46-50 DEG C of the shell temperature rise on surface, whole
The insulation resistance of a equipment is less than 2M Ω.
The characteristics of exhaust gas generated when the application is for spray painting, designs corresponding exhaust treatment system, and lacquer spraying waste gas belongs to greatly
Organic mixed gas of air quantity, low concentration, low temperature, using at the purification of cellular activated carbon Adsorption Concentration after such exhaust gas filtering
Reason, treated the direct qualified discharge of exhaust gas, meanwhile, hot-air desorption and regeneration is used after activated carbon adsorption saturation, desorption comes out
High-concentration organic waste gas enter catalytic oxidizing equipment (RCO) carry out catalytic oxidation treatment, this exhaust-gas treatment mode adsorption cleaning
Efficiency is relatively high.By using " filtering+activated carbon adsorption+RCO catalytic oxidizing equipment ", can make exhaust-gas treatment it is safe and reliable,
Treatment effeciency is high, will not generate secondary pollution.In addition, 8000h is just needed replacing cellular activated carbon under normal conditions, use cost
Low, maintenance cost is low.
The above is only a specific embodiment of the present invention, but the design concept of the present invention is not limited to this, all to utilize this
Design makes a non-material change to the present invention, and should all belong to behavior that violates the scope of protection of the present invention.
Claims (10)
1. a kind of organic exhaust gas recovery and processing system, it is characterised in that: including Rose Box, adsorbent equipment and catalytic oxidizing equipment,
Organic exhaust gas removes particle and dust after Rose Box, and exhaust gas enters adsorbent equipment by being seated in two sides activated carbon adsorption later
Purification, gas after absorption can direct qualified discharge, use hot-air desorption and regeneration after activated carbon adsorption saturation, be desorbed out
High-concentration organic waste gas enters catalytic oxidizing equipment and carries out catalytic oxidation treatment；The catalytic oxidizing equipment is by purification device main body
(3), the most of composition of back-fire relief deduster (1), air-introduced machine (7), control system (8) four；Wherein purification device main body (3) includes:
Heat exchanger (2), preheater (4), pre- catalytic combustor (5) and main catalytic combustion chamber (6)；High concentration that active carbon is desorbed out,
Small air quantity, high-temperature organic exhaust gas after back-fire relief deduster (1) filtering, into heat exchanger (2), and the high temperature after catalysis reaction
Gas carries out energy indirect exchange, and the temperature of exhaust gas source obtains being promoted for the first time at this time；Gas with certain temperature enters pre-
Hot device (4), carries out secondary temperature promotion；Enter pre- catalytic combustor (5) later, carries out first order catalysis reaction, at this time
Organic exhaust gas partly decomposes at low temperature, and gives off energy, and directly heats to exhaust gas source, and gas temperature is increased to and is urged
Change the optimum temperature of reaction；It is detected through system for detecting temperature, temperature meets the temperature requirement of catalysis reaction, burns into main catalytic
Room (6), organic gas mention thorough decomposition, while releasing a large amount of heat；Purified gas will be warm by heat exchanger (2)
It can convert and provide cold airflow, gas is emptied by air-introduced machine (7) after cooling.
2. organic exhaust gas recovery and processing system according to claim 1, it is characterised in that: wherein the Rose Box uses certainly
Dynamic takeup type filter, it is converted to transducing signal by pressure difference before and after filter, realizes the automation of filter material replacement, described
Rose Box is used to remove particle and dust, is mainly made of filtering material, transmission system and automatic control system.
3. organic exhaust gas recovery and processing system according to claim 2, it is characterised in that: the filtering material is mounted in feeding
Case, after air inlet passes through automatic roll filter with high concentration dust laden air, before and after filter pressure difference increase with dust filtering and
It gradually rises；When filter resistance rises to the whole Resistance Value of setting, pressure difference switch starts to act, and reel system updates filter
Material；When reaching the roller shutter time, stop transmission, updates filtrate work and finish, re-start filtering.
4. organic exhaust gas recovery and processing system according to claim 1, it is characterised in that: use 8 activated carbon adsorption beds
Adsorption/desorption processing, 90% or more Adsorption efficiency are carried out to exhaust gas.
5. organic exhaust gas recovery and processing system according to claim 1, it is characterised in that: the adsorbent equipment is using activity
Charcoal adsorption layer, built-in active carbon layer and air distributor, with thickening-purification technology organic gas.
6. organic exhaust gas recovery and processing system according to claim 1, it is characterised in that: the pre- catalytic combustor (5)
Using drawer type, plug-in heating component is divided in built-in honeycombed catalyst, centre, using infrared radiation principle, urges honeycomb
Agent temperature reaches reaction temperature, decomposes partial organic substances, gives off energy, and directly promotes exhaust gas temperature.
7. organic exhaust gas recovery and processing system according to claim 6, it is characterised in that: the electric heating assembly can root
According to the temperature fluctuation of exhaust gas, automatically controls compensation and stop；When high temperature occurs in reaction temperature, it is automatically stopped electrically heated electricity
Source, temperature can start automatically after reducing, and restore to work normally.
8. organic exhaust gas recovery and processing system according to claim 1, it is characterised in that: the heat exchanger (2) uses plate
Formula heat exchanger, structure uses Q235 cold-rolled steel steel plate system, reasonable to arrange, makes hot and cold air comprehensive engagement, and energy carries out complete
Face displacement.
9. organic exhaust gas recovery and processing system according to claim 1, it is characterised in that: control system (8) monitoring
Institute is dynamic to light dynamic, stopping, failure, reflects that situation is decomposed in the heating of gas in entire operation process, gas, entire to equipment
Process carries out the protection of all-position safety power, can be set according to exhaust gas source property and production line state.
10. a kind of organic exhaust gas recovery and treatment method, it is characterised in that: using any organic exhaust gas of claim 1-8
Recovery and processing system, organic exhaust gas remove particle and dust after Rose Box, and exhaust gas enters adsorbent equipment by being seated in later
Two sides activated carbon adsorption purification, gas after absorption can direct qualified discharge, be desorbed using hot-air after activated carbon adsorption saturation
Regeneration, the high-concentration organic waste gas for being desorbed out enter catalytic oxidizing equipment and carry out catalytic oxidation treatment.
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|---|---|---|---|
| CN201811142672.0A CN109381963A (en) | 2018-09-28 | 2018-09-28 | Organic exhaust gas recovery and processing system and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811142672.0A CN109381963A (en) | 2018-09-28 | 2018-09-28 | Organic exhaust gas recovery and processing system and method |
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| Publication Number | Publication Date |
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| CN109381963A true CN109381963A (en) | 2019-02-26 |
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ID=65418285
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811142672.0A Pending CN109381963A (en) | 2018-09-28 | 2018-09-28 | Organic exhaust gas recovery and processing system and method |
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| CN (1) | CN109381963A (en) |
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| CN110030567A (en) * | 2019-04-10 | 2019-07-19 | 中国船舶重工集团公司第七一八研究所 | A kind of organic waste gas catalytic combustion integrated apparatus |
| CN111735070A (en) * | 2020-06-29 | 2020-10-02 | 浙江澄源环保科技有限公司 | Catalytic combustion equipment and catalytic combustion method for VOC gas |
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| CN110030567A (en) * | 2019-04-10 | 2019-07-19 | 中国船舶重工集团公司第七一八研究所 | A kind of organic waste gas catalytic combustion integrated apparatus |
| CN110030567B (en) * | 2019-04-10 | 2023-11-07 | 中国船舶重工集团公司第七一八研究所 | Organic waste gas catalytic combustion integrated device |
| CN111735070A (en) * | 2020-06-29 | 2020-10-02 | 浙江澄源环保科技有限公司 | Catalytic combustion equipment and catalytic combustion method for VOC gas |
| CN111735070B (en) * | 2020-06-29 | 2022-07-15 | 浙江澄源环保科技有限公司 | Catalytic combustion equipment and catalytic combustion method for VOC gas |
| CN112156609A (en) * | 2020-07-03 | 2021-01-01 | 富钰精密组件（昆山）有限公司 | Waste gas treatment mechanism |
| CN112058084A (en) * | 2020-09-25 | 2020-12-11 | 郑州佑飞机电科技有限公司 | Photocatalyst organic waste gas treatment equipment |
| CN112588021A (en) * | 2020-11-18 | 2021-04-02 | 辽宁工程技术大学 | Catalytic device and organic waste gas treatment system |
| CN115463511A (en) * | 2021-06-10 | 2022-12-13 | 国家能源投资集团有限责任公司 | Laboratory gas purification treatment system and method |
| CN115041017A (en) * | 2022-05-13 | 2022-09-13 | 南京都乐制冷设备有限公司 | Device and method for removing VOCs in closed area |
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