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 PDF

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Publication number
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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China
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heating power
chamber
waste gas
heat
regenerative
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CN201910036545.0A
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刘彰
何淼
周益辉
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Changsha Kaitian Institute Of Technology Environmental Protection Service Co Ltd
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Changsha Kaitian Institute Of Technology Environmental Protection Service Co Ltd
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Priority to CN201910036545.0A priority Critical patent/CN109737434A/en
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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

A kind of coating waste gas heating power oxidation minimum discharge system
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.
CN201910036545.0A 2019-01-15 2019-01-15 A kind of coating waste gas heating power oxidation minimum discharge system Pending CN109737434A (en)

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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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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
CN110375313B (en) * 2019-06-03 2021-03-30 扬州博林环保机械有限公司 Heat accumulation integral type waste gas burns burning furnace
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
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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
CN110332554B (en) * 2019-08-02 2024-03-01 成都市蜀海天诚环保科技有限公司 Waste gas combustion system and combustion process thereof
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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