CN109737434A - A kind of coating waste gas heating power oxidation minimum discharge system - Google Patents
A kind of coating waste gas heating power oxidation minimum discharge system Download PDFInfo
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- CN109737434A CN109737434A CN201910036545.0A CN201910036545A CN109737434A CN 109737434 A CN109737434 A CN 109737434A CN 201910036545 A CN201910036545 A CN 201910036545A CN 109737434 A CN109737434 A CN 109737434A
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Abstract
The invention discloses a kind of coating waste gas heating power to aoxidize minimum discharge system, including heat accumulating type heating power oxidation unit, the heat accumulating type heating power oxidation unit includes three regenerative chambers being connected in parallel, the regenerative chamber inner passage is fixed with plate type ceramic accumulation of heat module, the bottom of the regenerative chamber is provided with the air inlet and air outlet of valve, and be connected to respectively with air duct, the regenerator top and the same combustion chamber parallel communication, burner is equipped in the combustion chamber;The regenerative chamber and hot wind air duct group parallel communication;The shell of the regenerative chamber includes steel plate layer, stainless steel layer, ceramic fiber blanket and porous ceramics heat accumulation plate from outside to inside.Heat accumulating type heating power oxidation unit of the invention uses multilayer regenerative structure, while ensure that heat does not pass through shell and conducts outward, improves heat storage efficiency;Explosion relief door and high temperature relief valve are set in heat accumulating type heating power oxidation unit simultaneously, and realization coating waste gas minimum discharge that can be safe and efficient, stable requires.
Description
Technical field
The invention belongs to VOCs treatment technologies, and in particular to a kind of coating waste gas heating power oxidation minimum discharge system.
Background technique
In the operating process of coating, a large amount of VOCs are discharged into atmosphere, containing largely can causing to poison to human body viscera
The even poisonous and harmful substances such as benzene,toluene,xylene, chlorobenzene, butanol, cyclohexanone, hexamethylene and butyl acetate of carcinogenesis.
VOCs discharge not only causes room air pollution, but also issues third contact of a total solar or lunar eclipse chemical reaction in illumination effect, leads to photochemical fog, two
The concentration of secondary Organic aerosol and atmosphere organic acid increases, and influences human health and atmospheric environment.VOCs is also to form haze sky
One of important origin cause of formation of gas is counted according to relevant departments and is shown, VOCs discharge accounts for 21% in the main reason of haze weather outburst, and
The main source of VOCs is exactly that paint brushes volatilization, and unlike sulfur dioxide and nitrogen oxides, the emission source of VOCs disperses,
It is widely present in spraying process.
It is directed to the improvement of coating organic exhaust gas, currently used process is more, but conventional process exists
Problem in the majority, such as absorption method, absorption process, membrane separation process investment and operating cost are high, generate secondary pollution;Bioanalysis is to biology
The applicable of strain requires relatively high, and process cycle is also long;Production by Catalytic Combustion Process investment and operating cost are relatively high, are easy to make
At the inactivation in catalyst poisoning and operational process;Plasma technique is only applicable to the waste gas pollution control and treatment of low concentration, treatment effeciency
It is not high, and there is a possibility that generating ozone, there is also security risks in previous application.
Heat accumulating type heating power oxidation technology is that current processing organic exhaust gas is the most reliable, thorough processing mode, however existing
Heat accumulating type RTO have that safety measure is not in place, sudden problem is inconsiderate, there are security risks in design;Practical work
Condition and equipment mismatch;Front end is administered for coating waste gas, coating cloud is removed using wet process, cause secondary pollution etc.;Waste gas pollution control and treatment effect
Unstable, to the peculiar smell poor removal effect in exhaust gas, foul smell cannot be removed effectively.
Containing organic matters such as part propylene nitrile, styrene especially in portion, easily occur certainly when temperature is higher
Polymerization, the substance after polymerization block accumulation of heat module, and leading to heat accumulating type heating power oxidation furnaces, equipment hinders in use for some time
Power becomes larger, while high boiling point organic compound adhesion, the safety accidents such as easy to cause fire are arranged at bottom.
Summary of the invention
The technical issues of final result of the present invention, is: for the above problem existing for existing heat accumulating type heating power oxidation technology, mentioning
Minimum discharge system is aoxidized for a kind of coating waste gas heating power, effective solution waste gas pollution control and treatment effect is unstable, safeguard construction design
Not in place, peculiar smell removes the problems such as effect is poor, realizes the requirement that is safe and stable, efficiently meeting minimum discharge of system.
The present invention adopts the following technical scheme that realization:
A kind of coating waste gas heating power oxidation minimum discharge system, including heat accumulating type heating power oxidation unit 2, the heat-accumulation type hot
Power oxidation unit 2 includes three regenerative chambers being connected in parallel, and the regenerative chamber inner passage is fixed with plate type ceramic accumulation of heat
The bottom of module 2-3, the regenerative chamber are provided with the air inlet and air outlet of valve, and are connected to respectively with air duct 2-1, described
Regenerator top and the same combustion chamber parallel communication, equipped with burner 2-6 in the combustion chamber;
The regenerative chamber and hot wind air duct group 2-9 parallel communication;
The shell of the regenerative chamber includes steel plate layer 210, stainless steel layer 211, ceramic fiber blanket 212 and porous from outside to inside
Ceramic heat-storing plate 213.
Further, anti-blocking fire brick layer 2-4 is equipped between the plate type ceramic accumulation of heat module 2-3 and combustion chamber.
Further, airflow uniform distribution lattice are equipped between the air inlet and the indoor plate type ceramic accumulation of heat module 2-3 of accumulation of heat
Grid 2-2.
Further, explosion relief door 2-7 and high temperature relief valve 2-8 is equipped in the combustion chamber, the high temperature relief valve 2-8 is set
It sets on the pressure relief pipe 5 between combustion chamber and tapping equipment.
It further include filtering firebreak device 1 in a kind of coating waste gas heating power oxidation minimum discharge system of the invention, it is described
Filtering firebreak device 1 is connected to the air duct for connecting regenerative chamber air inlet, including the filtering being arranged in two chambers space respectively
Connected between chamber where component and fire arrester 1-11, the filter assemblies and fire arrester 1-11 by air channel check valve 1-10
Logical, wherein the chamber where filter assemblies is provided with the entrance of access coating waste gas, the chamber where the fire arrester 1-11 with
Connect the air duct connection of regenerative chamber air inlet.
Further, the filter assemblies include porous perforated-plate filter 1-7, the surface the porous perforated-plate filter 1-7
Contact is equipped with the wire brush 1-3 that is driven by motor, the chamber where the filter assemblies also pass through bypass heating pipeline 4 with connect storage
The air duct of hot cell gas outlet is connected to, and the bypass heating pipeline 4 is equipped with by-passing valve 1-6.
Further, the bottom of the porous perforated-plate filter 1-7 is provided with paint slag collection cabinet 1-8.
Further, the filter assemblies further include setting porous perforated-plate filter 1-7 and air channel check valve 1-10 it
Between filter layer 1-4.
Further, fresh air regulating valve 1-5 and exhaust gas concentration detector 1- is equipped in the chamber where the filter assemblies
9, feedback control is realized between the exhaust gas concentration detector 1-9 and fresh air regulating valve 1-5.
It further include deep purifying deodorization device 3 in a kind of coating waste gas heating power oxidation minimum discharge system of the invention,
The deep purifying deodorization device 3 includes being connected to the air duct for connecting regenerative chamber gas outlet, including respectively in two chambers space
The photooxidation cleaning module 3-1 and atomization and deodorization module 3-2, the photooxidation cleaning module 3-1 and atomization and deodorization mould of interior setting
It is interconnected between chamber where block 3-2, wherein the chamber where the photooxidation cleaning module 3-1 goes out with regenerative chamber is connect
The air duct of port is connected to, and the atomization and deodorization module 3-2 is connected to tapping equipment.
A kind of coating waste gas heating power oxidation minimum discharge system disclosed by the invention is coated with mainly for paint industry
The pollution control of machine exhaust gas.The spraying exhaust gas that Painting Shop generates enters filtering fire prevention by pipeline after being collected by gas gathering mask and fills
It sets, after coating cloud and dust particles filtering, heat accumulating type heating power oxidation unit, 98% or more organic waste is entered by fire arrester
Gas is in heat accumulating type heating power oxidation unit by 800 DEG C of high-temperature oxydations at CO2And H2O, high-temperature gas is exchanged heat by heat storage to cool down
Rear into the smelly device of deeply purifying and removing to 80 DEG C or so, exhaust gas is discharged by passing through tapping equipment after deep purifying.Pass through this
The purified exhaust gas of coating waste gas heating power oxidation minimum discharge system depth of invention realizes that the middle dust content of organic exhaust gas is small
In 5mg/m3, benzene be less than 1mg/m3, other benzene homologues be less than 25mg/m3, non-methane total hydrocarbons be less than 40mg/m3Minimum discharge want
It asks.
In addition, the accumulation of heat room housing of heat accumulating type heating power oxidation unit of the invention equally uses multilayer regenerative structure, guarantee
While heat does not pass through shell and conducts outward, heat storage efficiency is improved;Air duct non-return is provided in filtering firebreak device
Valve and the double-deck fire arrester block tempering danger source, prevent fire source when high tempering risk occurs in heat accumulating type heating power oxidation unit
Fire incident is caused back to painting workshop by pipeline, while explosion relief door and high temperature are set in heat accumulating type heating power oxidation unit
Relief valve, realization coating waste gas minimum discharge that can be safe and efficient, stable require.
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Detailed description of the invention
Fig. 1 is the overall structure diagram that one of embodiment coating waste gas heating power aoxidizes minimum discharge system.
Fig. 2 is the structural schematic diagram of the filtering firebreak device in embodiment.
Fig. 3 is the structural schematic diagram of the heat accumulating type heating power oxidation unit in embodiment.
Fig. 4 is the accumulation of heat room housing lamination mechanism schematic diagram in embodiment.
Fig. 5 is the structural schematic diagram of the deep purifying deodorization device in embodiment.
Figure label: 1. filtering firebreak devices, 1-1. entry switch valve, 1-2. air flow distribution plate at inlet, 1-3. wire brush,
1-4. filter layer, 1-5. fresh air regulating valve, 1-6. by-passing valve, 1-7. porous perforated-plate filter, 1-8. paint slag collection cabinet, 1-9. are useless
Gas concentration detector, 1-10. air channel check valve, 1-11. fire arrester;
2. heat accumulating type heating power oxidation unit, the air duct 2-1., 2-2. airflow uniform distribution grid, 2-3. plate type ceramic accumulation of heat module,
The anti-blocking fire brick layer of 2-4., 2-5. inspection manhole, 2-6. burner, 2-7. explosion relief door, 2-8. high temperature relief valve, 2-9. hot wind supply
Air hose group, 210. steel plate layers, 211. stainless steel layers, 212. ceramic fiber blankets, 213. porous ceramics heat accumulation plates;
3. deep purifying deodorization device, 3-1. photooxidation cleaning module, 3-2. atomization and deodorization module;
4- bypass heating pipeline, 5- pressure relief pipe.
Specific embodiment
Embodiment
Referring to Fig. 1, one of diagram coating waste gas heating power oxidation minimum discharge system is preferred embodiment of the invention, tool
Body includes filtering firebreak device 1, heat accumulating type heating power oxidation unit 2, deep purifying deodorization device 3, wherein filtering firebreak device 1
Entrance is connected with coating waste gas collection conduit, outlet and heat accumulating type heating power oxidation unit 2, deep purifying deodorization device 3 successively phase
Even, the exhaust gas after heating power oxidation and deodorization is finally sent into smoke stack emission by centrifugal blower.
In conjunction with referring to Fig. 3, the organic matters in 2 pairs of heat accumulating type heating power oxidation unit spraying exhaust gas in the present embodiment carry out high
The main device of warm oxidation removal comprising three regenerative chambers being connected in parallel, parallel connection here refer to the top of regenerative chamber
By the same combustion chamber parallel communication, the bottom of regenerative chamber then passes through the air duct parallel communication of air inlet and outlet, every in this way
Bottom disengaging headroom, middle part accumulation of heat space and top oxidation space are from top to bottom divided into a regenerative chamber.Wherein it is located at top
Dismountable flanged joint is used between the combustion chamber in portion and each regenerative chamber, convenient for the transport of system and the adjustment in later period.
Specifically, being fixed with plate type ceramic accumulation of heat module 2-3 in the middle part accumulation of heat space of regenerative chamber, plate type ceramic stores
Thermal modules 2-3 is that 150mm × 150mm × 200mm ceramic heat-storing unit piles up fixation by specification, and the specific gravity of module is
2.2g/cm3, main component is silica, and wherein silica weight percentage is 72%, aluminum oxide weight percent
It is 20%, iron oxide weight percent less than 1.3%, the water absorption rate of entire plate type ceramic accumulation of heat module 2-3 is less than 1%, highest
1200 DEG C of heatproof, thermal capacitance 1100J/kg.K.
The bottom disengaging headroom of regenerative chamber is equipped with air inlet and air outlet, and air inlet and air outlet are provided with control and open
The valve closed, while the air inlet and air outlet of three regenerative chambers are connected to air duct 2-1 respectively, air duct 2-1 includes individually connection
The airintake wind-tunnel of air inlet with individually be connected to the outgassing wind-tunnel of gas outlet, wherein airintake wind-tunnel is connect with firebreak device 1 is filtered, out
Gas air duct is connect with deep purifying deodorization device 3.Airflow uniform distribution is provided between air inlet and plate type ceramic accumulation of heat module 2-3
Grid 2-2.
The top oxidation space of regenerative chamber is a part of combustion chamber, is equipped with burner 2-6 in the inside of combustion chamber.Burning
Interior is equipped with explosion relief door 2-7 and high temperature relief valve 2-8, and the relief tube between combustion chamber and chimney is arranged in high temperature relief valve 2-8
On road 5.In the process of running when room temperature of burning is higher than 900 DEG C, high temperature relief valve 2-8 is opened, and burner stops heating,
Chamber temperature is adjusted at 850 DEG C or less.When high temperature relief valve 2-8 breaks down, burning room temperature overtemperature causes furnace pressure super
When crossing 4500Pa, top gravity type explosion relief door 2-7 is opened, and forces pressure release, it is ensured that the safe operation of system.
Regenerative chamber and hot wind air duct group 2-9 parallel communication, hot wind air duct group 2-9 are connected to the discharge end of exhaust gas, should
It is provided with corresponding valve and instrument etc. in hot wind air duct group, high-temp waste gas clean after discharging can be extracted in regenerative chamber
It is purged.
As shown in figure 4, the shell of the regenerative chamber of the present embodiment is multilayer accumulation of heat shell, it from outside to inside successively include steel plate layer
210, stainless steel layer 211, ceramic fiber blanket 212 and porous ceramics heat accumulation plate 213.Wherein, steel plate layer 210 uses 5mm thickness Q235B
Carbon steel sheet is welded into the cavity body structure of regenerative chamber, and the corner of structure is interior to paste angle steel reinforced;Stainless steel layer 211 is thick using 2mm
Stainless steel plate lining patch, is close to 210 inner wall of steel plate layer, prevents exhaust gas from improving the service life of system to the corrosion of cavity;It is ceramic fine
Blanket 212 is tieed up using 250mm ceramic fiber module and tapetum fibrosum place mat in the inner wall of stainless steel layer 211, plays function of heat insulation, really
It protects hull outside temperature and is lower than 60 DEG C;Porous ceramics heat accumulation plate 213 uses 20mm thickness porous ceramics heat accumulation plate, increases entire accumulation of heat
The amount of stored heat of room, it is possible to reduce the heat storage number of plies of the plate type ceramic accumulation of heat module 2-3 of regenerative chamber inside cavity, in reduction system
The resistance in portion reduces main air blower energy consumption.The porous ceramics heat accumulation plate is 220Kg/m by bulk density3, specification 300 × 300 ×
The modular unit of 250mm is assembled, fibre diameter >=4.5 μm of modular unit, fibre length > 120mm, shot content≤8%, non-
Fibrous matter content≤28%, 1200 DEG C of heatproof or more.
Burn in order to prevent indoor burner 2-6 fuel drip pollution the indoor plate type ceramic accumulation of heat module 2- of accumulation of heat
3, building between the top and combustion chamber of plate type ceramic accumulation of heat module 2-3 has anti-blocking fire brick layer 2-4, the anti-blocking fire brick layer
2-4 uses square hole fire resisting brick masonry, and the sidewall of combustion chamber in side opens up inspection manhole 2-5, in personnel convenient for safeguarding enter
Anti-blocking fire brick layer 2-4 is cleaned in portion.
Referring back to Fig. 2, the filtering firebreak device 1 of the present embodiment is connected to the air duct for connecting regenerative chamber air inlet, including point
Chamber where the filter assemblies and fire arrester 1-11 not being arranged in two chambers space, filter assemblies and fire arrester 1-11 it
Between be connected to by air channel check valve 1-10, air channel check valve 1-10 guarantee air-flow be merely able to from the chamber where filter assemblies into
Enter the chamber to where fire arrester, wherein the chamber where filter assemblies is provided with the entrance of access coating waste gas, fire arrester 1-
Chamber where 11 is connected to the air duct for connecting regenerative chamber air inlet.
Filter assemblies include porous perforated-plate filter 1-7 and high efficiency filter layer 1-4, and wherein porous perforated-plate filter 1-7 is being just
Entrance setting to access coating waste gas, high efficiency filter layer 1-4 are arranged in porous perforated-plate filter 1-7 and air channel check valve 1-10
Between.It is inlet porting air-flow in the conical horn channel in conical horn mouth between entrance and porous perforated-plate filter 1-7
The exhaust gas of entrance is uniformly oriented to porous perforated-plate filter 1-7 by distribution grid 1-2, and air flow distribution plate at inlet 1-2 uses stainless steel
304 materials are distributed packing free ratio between 80%-85%, and open pore size is in 20mm-30mm.Porous perforated-plate filter 1-7 is in mistake
4-10 group is arranged in parallel according to coating cloud concentration in filter firebreak device, porous perforated-plate filter 1-7 uses stainless steel 304 material, often
Group is welded by two pieces of stainless steel plates, and centre is hollow structure, and two interfaces, the disengaging for hot wind is arranged.Multiaperture-type
Filter 1-7 can be dismantled cleaned when necessary.
On the surface of porous perforated-plate filter 1-7, contact is equipped with the wire brush 1-3 being driven by motor, and wire brush 1-3 is parallel
With the cylindrical structure of porous perforated-plate filter 1-7, outer surface is covered with the 304 stainless steel steel wire bristles of Φ 1.5mm, long 120mm,
Inside setting shaft is driven by motor.Meanwhile the chamber where filter assemblies also pass through bypass heating pipeline 4 with connect regenerative chamber
The air duct of gas outlet is connected to, and bypass heating pipeline 4 is equipped with by-passing valve 1-6, opens by-passing valve 1-6, porous perforated-plate filter 1-7
It is heated using about 80 DEG C after the purification in whole system of high-temperature tail gas, makes to be adhered to coating cloud on porous perforated-plate filter
Desiccation is obtained, then will carry out unified collection under the paint slag brush after desiccation using the stainless steel wire brush of rotation.Treated exhaust gas
After thoroughly purifying using high efficiency filter layer completion to the coating cloud in exhaust gas, accumulation of heat is entered after air channel check valve and fire arrester
Formula heating power oxidation unit.
The bottom of porous perforated-plate filter 1-7 is provided with paint slag collection cabinet 1-8, for clearing up the paint slag to get off after desiccation
Collection, paint slag collecting box 1-8 be the drawer-type structure with guide rail, material be 304 stainless steels, collecting box have polytetrafluoroethylene (PTFE)
Sealing strip prevents from leaking out.
Fresh air regulating valve 1-5 and exhaust gas concentration detector 1-9 is equipped in chamber where filter assemblies, while in the chamber
Entrance be provided with entry switch valve 1-1, realize feedback control between exhaust gas concentration detector 1-9 and fresh air regulating valve 1-5.It is logical
Exhaust gas concentration detector 1-9 is crossed to exhaust gas concentration real time monitoring is carried out in filtering firebreak device, according to the component of exhaust gas to entrance
The exhaust gas of system carries out concentration control, and when exhaust gas concentration is higher than the 1/4 of explosion limit, system automatically opens fresh air regulating valve 1-
5, which are mixed into fresh air, adjusts the exhaust gas concentration for entering system, and proper time can also close entry switch valve 1-1 and stop exhaust gas entrance, really
The safety of insurance system operation.The air channel check valve 1-10 and the double-deck fire arrester 1-11 in firebreak device are filtered simultaneously, work as heat accumulating type
When high tempering risk occurs in heating power oxidation unit, tempering danger source is blocked, prevents fire source from returning to painting workshop by pipeline
Cause fire incident.
Referring to Fig. 5, the deep purifying deodorization device 3 in the present embodiment is connected to the air duct for connecting regenerative chamber gas outlet, packet
Include the photooxidation cleaning module 3-1 being arranged in two chambers space respectively and atomization and deodorization module 3-2, photooxidation cleaning module
Between chamber where 3-1 and atomization and deodorization module 3-2 be interconnected, wherein the chamber where photooxidation cleaning module 3-1 with
The air duct connection of regenerative chamber gas outlet is connected, atomization and deodorization module 3-2 is connected to by main induced draft fan with tapping equipment, and photooxidation is net
Change the preposition organic exhaust gas for exporting to heat accumulating type heating power oxidation unit 2 of module 3-1 and carries out deep purifying, atomization and deodorization module
The stink that 3-2 is used to not can be removed heat accumulating type heating power oxidation unit 2 removes, and realizes the ultralow row of VOCs treatment
It puts.
Specifically, photooxidation cleaning module 3-1 setting 185nm ultraviolet light and the double spectrum fluorescent tubes of 254nm ultraviolet radiator, wherein
The ozone that 185nm quartz burner generates is used to carry out the nitrogen oxide NOx that remaining organic exhaust gas and combustion oxidation generate
Advanced treating, ozone are blended under the irradiation of 254nm quartz burner with hydrocarbon remaining in flue gas are decomposed into simultaneously
Carbon dioxide and water.
Specifically, the extracted form natural plant that atomization and deodorization module 3-2 is matched using ultrasonic generator by 1 ‰~3 ‰
Liquid deodorization is atomized, and is sufficiently mixed to decompose foul smell molecule in flue gas.
The present embodiment is as follows to the concrete technology flow process of spraying exhaust gas:
In the organic exhaust gas that painting workshop is collected by gas gathering mask, filtering firebreak device is entered under the action of main induced draft fan
1.Exhaust gas is by uniformly entering porous perforated-plate filter 1-7 to coating cloud after filtering the air flow distribution plate at inlet 1-2 of firebreak device 1
It is filtered, completes 80% or so coating cloud removal.Filtered exhaust gas filters remaining coating cloud again by high efficiency filter plate 1-4
After particle, chamber where entering fire arrester 1-11 by air channel check valve 1-10, organic exhaust gas after filtering firebreak device 1,
It completes the collection to coating cloud and dust particles to handle, for removal efficiency up to 99%, exhaust gas passes through 2 bottom of heat accumulating type heating power oxidation unit
The air duct of air inlet enters heat accumulating type heating power oxidation unit.The No.1 regenerative chamber for doing left side is opened when operation, exhaust gas passes through regenerative chamber
Interior airflow uniform distribution grid 2-2 uniformly enters middle part accumulation of heat space, by carrying out hot friendship with plate type ceramic accumulation of heat module 2-3
It changes, heating by the exhaust gases is entered in the combustion chamber of top to after 550-600 DEG C, chamber temperature temperature under heating of burner or so
It is maintained between 780-850 DEG C, organic exhaust gas is decomposed into carbon dioxide and water.Purified exhaust gas enters No. two intermediate storages
In hot cell, pass through heat exchange, after the plate type ceramic accumulation of heat module 2-3 heating of No. two regenerative chambers, the gas outlet of No. two regenerative chambers
Valve opening, the exhaust gas after purification heat exchange reach 80 DEG C or so the air ducts for entering bottom outlet, enter under the action of blower deep
Deodourizing device 3 is spent, first processing cycle is completed.After first processing cycle is completed in operation, it is adjusted and carries out second
Processing cycle then closes the gas outlet valve of No. two regenerative chambers, opens No. two air inlet valves, exhaust gas by No. two regenerative chambers into
Enter, open the gas outlet valve of No. three regenerative chambers, purified exhaust gas exchanged heat by No. three regenerative chambers of the rightmost side after by outlet
Mouth enters deep purifying deodorization device 3, completes second processing cycle.After having run second processing circulation, it is adjusted and carries out
Third processing cycle, third processing cycle is similar with the above two, opens the air intake valve of No. three regenerative chambers, closes No. three accumulation of heats
The outlet valve of room, organic exhaust gas enter No. three regenerative chambers, and purified exhaust gas passes through the air outlet valve for the No.1 regenerative chamber opened
Door enters deep purifying deodorization device 3 by bottom outgassing wind-tunnel, completes third processing cycle.Three processing cycle Zhou Erfu
Begin, continuous circular flow.
During two cyclic switchings, after the completion of the circulation of front one, it can be risen by hot wind air duct group 2-9
Dynamic operation, extracts 80 DEG C of discharge or so of purified exhaust gas, to the indoor remaining exhaust gas of the accumulation of heat closed in circulation below
It is purged, making to remain in the indoor organic exhaust gas of accumulation of heat, it enters in combustion chamber and sufficiently handles.Preventing will in handoff procedure
It handles insufficient exhaust gas and brings wind output channel into, influence treatment effect.What it is due to extraction is purified exhaust temperature at 80 DEG C
It controls, when purging regenerative chamber, not will cause cold air entrance and cause regenerative chamber sharp temperature drop, to ceramic heat storage body structure
The influence of energy while the generation for being also prevented from condensed water.
The specific example that the present embodiment is implemented is as follows:
The painting workshop room temperature organic exhaust gas collected by gas gathering mask, exhausted air quantity 2000Nm3/ h, main component be benzene, toluene,
Dimethylbenzene, non-methane total hydrocarbons, entrance concentration 1500-1800mg/Nm3, organic exhaust gas passes through this reality under the action of main air blower
The exhaust gas conveying supervisor for applying example send to firebreak device entrance is filtered, and exhaust gas flow velocity designs between 10-15m/s in conveyance conduit,
Main air blower air quantity 2700Nm3/ h, total pressure 5120Pa, revolving speed 2900r/min.
Heat accumulating type heating power oxidation unit by system presses No. two regenerative chamber exhausts of No.1 regenerative chamber air inlet, No. two regenerative chambers
No. three regenerative chamber exhausts of air inlet, the mode of No. three regenerative chamber air inlet No.1 regenerative chambers exhaust circuit sequentially operation.Finally discharge
Organic exhaust gas reaches dust content less than 5mg/m3, benzene be less than 1mg/m3, other benzene homologues be less than 25mg/m3, non-methane total hydrocarbons it is small
In 40mg/m3Minimum discharge requirement.
These are only the preferred embodiment of the present invention, does not limit the invention in any way, for this field
For technical staff, the present invention can have various modification and variations.All within the spirits and principles of the present invention, made any
Change, equivalent replacement, modification, improvement etc., should all be included in the protection scope of the present invention.Therefore, protection model of the invention
The protection scopes of claims should be subject to by enclosing.
Claims (10)
1. a kind of coating waste gas heating power aoxidizes minimum discharge system, it is characterised in that: including heat accumulating type heating power oxidation unit (2),
The heat accumulating type heating power oxidation unit (2) includes three regenerative chambers being connected in parallel, and the regenerative chamber inner passage fixation is set
Have plate type ceramic accumulation of heat module (2-3), the bottom of the regenerative chamber is provided with the air inlet and air outlet of valve, and respectively with
Air duct (2-1) is connected to, the regenerator top and the same combustion chamber parallel communication, is equipped with burner (2- in the combustion chamber
6);
The regenerative chamber and hot wind air duct group (2-9) parallel communication;
The shell of the regenerative chamber includes steel plate layer (210), stainless steel layer (211), ceramic fiber blanket (212) and more from outside to inside
Hole ceramic heat-storing plate (213).
2. a kind of coating waste gas heating power according to claim 1 aoxidizes minimum discharge system, the plate type ceramic accumulation of heat mould
Anti-blocking fire brick layer (2-4) is equipped between block (2-3) and combustion chamber.
3. a kind of coating waste gas heating power according to claim 1 aoxidizes minimum discharge system, the air inlet and regenerative chamber
Airflow uniform distribution grid (2-2) is equipped between interior plate type ceramic accumulation of heat module (2-3).
4. a kind of coating waste gas heating power according to claim 1 aoxidizes minimum discharge system, it is equipped with and lets out in the combustion chamber
Letting out between combustion chamber and tapping equipment is arranged in quick-fried door (2-7) and high temperature relief valve (2-8), the high temperature relief valve (2-8)
On pressure pipe road (5).
5. a kind of coating waste gas heating power oxidation minimum discharge system described in any one of -4 according to claim 1, further included
It filters firebreak device (1), filtering firebreak device (1) is connected to the air duct for connecting regenerative chamber air inlet, including respectively at two
The filter assemblies and fire arrester (1-11) being arranged in cavity space, chamber where the filter assemblies and fire arrester (1-11) it
Between by air channel check valve (1-10) be connected to, wherein the chamber where filter assemblies be provided with access coating waste gas entrance, institute
Chamber where stating fire arrester (1-11) is connected to the air duct for connecting regenerative chamber air inlet.
6. a kind of coating waste gas heating power according to claim 5 aoxidizes minimum discharge system, the filter assemblies include more
Orifice-plate type filter (1-7), the porous perforated-plate filter surface (1-7) contact are equipped with the wire brush (1-3) being driven by motor,
Chamber where the filter assemblies also passes through bypass heating pipeline (4) and is connected to the air duct for connecting regenerative chamber gas outlet, the side
Logical heating pipeline (4) is equipped with by-passing valve (1-6).
7. a kind of coating waste gas heating power according to claim 6 aoxidizes minimum discharge system, the porous perforated-plate filter
The bottom of (1-7) is provided with paint slag collection cabinet (1-8).
8. a kind of coating waste gas heating power according to claim 5 aoxidizes minimum discharge system, the filter assemblies further include
The filter layer (1-4) being arranged between porous perforated-plate filter (1-7) and air channel check valve (1-10).
9. a kind of coating waste gas heating power according to claim 5 aoxidizes minimum discharge system, where the filter assemblies
Fresh air regulating valve (1-5) and exhaust gas concentration detector (1-9), the exhaust gas concentration detector (1-9) and fresh air are equipped in chamber
Feedback control is realized between regulating valve (1-5).
10. a kind of coating waste gas heating power oxidation minimum discharge system described in any one of -4 according to claim 1, further includes depth
It spends deodourizing device (3), the deep purifying deodorization device (3) includes being connected to the air duct for connecting regenerative chamber gas outlet, packet
Include the photooxidation cleaning module (3-1) being arranged in two chambers space respectively and atomization and deodorization module (3-2), the photooxidation
It is interconnected between chamber where cleaning module (3-1) and atomization and deodorization module (3-2), wherein the photooxidation cleaning module
Chamber where (3-1) is connected to the air duct for connecting regenerative chamber gas outlet, and the atomization and deodorization module (3-2) and tapping equipment connect
It is logical.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201910036545.0A CN109737434A (en) | 2019-01-15 | 2019-01-15 | A kind of coating waste gas heating power oxidation minimum discharge system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201910036545.0A CN109737434A (en) | 2019-01-15 | 2019-01-15 | A kind of coating waste gas heating power oxidation minimum discharge system |
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CN110274252A (en) * | 2019-07-22 | 2019-09-24 | 瑞燃(上海)环境工程技术有限公司 | A kind of novel high-efficiency heat-accumulating heating power incinerator |
CN110332554A (en) * | 2019-08-02 | 2019-10-15 | 成都市蜀海天诚环保科技有限公司 | A kind of waste-gas burning system and its burning process |
CN110375313A (en) * | 2019-06-03 | 2019-10-25 | 扬州博林环保机械有限公司 | A kind of novel accumulation of heat integral waste gases incinerator |
CN111495180A (en) * | 2020-04-26 | 2020-08-07 | 南京昊安科技工程有限公司 | Final-stage integrated intelligent treatment process for harmful waste gas |
CN117329528A (en) * | 2023-10-28 | 2024-01-02 | 江苏大信环境科技有限公司 | Comprehensive RTO (real-time organic matter) treatment system for tail gas incineration containing organic dust and semi-solid particles |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN110375313A (en) * | 2019-06-03 | 2019-10-25 | 扬州博林环保机械有限公司 | A kind of novel accumulation of heat integral waste gases incinerator |
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CN111495180A (en) * | 2020-04-26 | 2020-08-07 | 南京昊安科技工程有限公司 | Final-stage integrated intelligent treatment process for harmful waste gas |
CN117329528A (en) * | 2023-10-28 | 2024-01-02 | 江苏大信环境科技有限公司 | Comprehensive RTO (real-time organic matter) treatment system for tail gas incineration containing organic dust and semi-solid particles |
CN117329528B (en) * | 2023-10-28 | 2024-03-19 | 江苏大信环境科技有限公司 | Comprehensive RTO (real-time organic matter) treatment system for tail gas incineration containing organic dust and semi-solid particles |
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