CN209317354U - A kind of lacquer spraying waste gas processing system - Google Patents
A kind of lacquer spraying waste gas processing system Download PDFInfo
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- CN209317354U CN209317354U CN201822211720.9U CN201822211720U CN209317354U CN 209317354 U CN209317354 U CN 209317354U CN 201822211720 U CN201822211720 U CN 201822211720U CN 209317354 U CN209317354 U CN 209317354U
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- waste gas
- deduster
- lacquer spraying
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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Abstract
The utility model discloses a kind of lacquer spraying waste gas processing system, including pretreatment unit, VOCS adsorbent equipment and purification recovery device.Pretreatment unit includes filler bin, duster, gas-solid mixer and the first deduster, exhaust gas is passed through in gas-solid mixer, duster sprays into the powder in filler bin in gas-solid mixer, and powder and exhaust gas are sufficiently mixed in gas-solid mixer, reduces exhaust gas coating cloud viscosity and waste gas humidity.Later, pretreated exhaust gas, which is passed through in VOCS adsorbent equipment, sloughs the organic pollutants such as VOCS.And, the mixture (being mixed with VOCS, coating cloud and powder etc.) being discharged from pretreatment unit and VOCS adsorbent equipment is passed through purification recovery device and burns, pass through burning, on the one hand the organic pollutants such as VOCS, coating cloud can be made to be oxidized to harmless carbon dioxide and water, so as to realize the substantially completely purification of exhaust gas；On the other hand, powder can be made to be regenerated, regenerated powder carry returns filler bin, so as to realize recycling for powder.
Description
Technical field
The utility model relates to lacquer spraying waste gas processing technology fields, more particularly to a kind of lacquer spraying waste gas processing system.
Background technique
Contain the volatile organic contaminants (abbreviation VOCS) such as coating cloud and benzene,toluene,xylene, discharge in lacquer spraying waste gas
Before, it needs to carry out VOCS adsorption treatment.Since the main component of coating cloud is tackifying resin, grease, it is easy to block adsorbent material
Micropore makes it lose adsorption capacity, therefore before carrying out VOCS adsorption treatment, needs to locate the coating cloud in lacquer spraying waste gas in advance
Reason.
In the prior art, lacquer spraying waste gas pretreating process mainly has wet sprinkling and dry filtration two major classes.
Wet sprinkling is with water spray lacquer spraying waste gas.Since tackifying resin, grease are mostly nonpolarity, catch water to coating cloud
Catch that ability is limited, thus the coating cloud removal rate of wet sprinkling is not high, water resource expend it is big.It gives up in addition, coating cloud mixes generation with water
Water needs that waste water treatment system additionally is arranged, processing cost is higher to avoid secondary pollution.
Dry filtration is to be intercepted using filtering materials such as filtering cotton net, grid paper, high efficiency filter cottons to coating cloud.The party
Although method can partially control the discharge of coating cloud, with the increase of coating cloud content in exhaust gas, filtering material is viscous glutinous serious, filtering effect
Fruit decline, needing to frequently replace filtering material, (enterprise biggish for spray painting amount, filtering material were just needed replacing every 7-15 days
Once).In addition, replaced filtering material regeneration is difficult since coating cloud is viscous glutinous serious, it can only scrap, increase solid waste
Discharge.
From above-mentioned analysis it is found that existing two major classes lacquer spraying waste gas pretreating process respectively has its drawback.In view of this, exploitation
A kind of processing system of lacquer spraying waste gas, makes it use completely new pretreating process, is this to evade above-mentioned part or all of drawback
Field technical staff's technical issues that need to address.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of lacquer spraying waste gas processing system, at the lacquer spraying waste gas
Reason system includes gas-solid mixer and the first deduster, the exhaust gas inlet of first deduster and the gas-solid mixer it is useless
Gas outlet；It further include filler bin and duster, the duster is used to the powder in the filler bin spraying into the gas
Gu in mixer.
In use, exhaust gas is passed through in gas-solid mixer, duster sprays into the powder in filler bin in gas-solid mixer, powder
Material and exhaust gas are sufficiently mixed in gas-solid mixer, and coating cloud is adhered to and wrapped up using powder, and playing reduces coating cloud viscosity
Effect.Mixed exhaust gas enters in the first deduster, and coating cloud and powder are collected into the ash bucket of the first deduster.Due to
The viscosity of coating cloud reduces, and effectively reduces the coating cloud amount being sticky on the filtering material of the first deduster, extends the first dedusting
The replacement cycle of device.
In addition, powder and exhaust gas are sufficiently mixed in gas-solid mixer, the moisture in exhaust gas can also be fully absorbed, is played
The effect of waste gas humidity is reduced, conducive to the service life for the VOCS adsorbent equipment for extending the first deduster downstream.
Lacquer spraying waste gas processing system as described above, the lacquer spraying waste gas processing system further includes zeolite rotary wheel device, institute
The adsorption zone import for stating zeolite rotary wheel device is connected to the waste gas outlet of first deduster.
Lacquer spraying waste gas processing system as described above, the lacquer spraying waste gas processing system further includes combustion furnace, and described first
The desorption area of the ash bucket of deduster and the zeolite rotary wheel device exports the inlet communication with the combustion furnace.
The processing system of lacquer spraying waste gas as described above, the lacquer spraying waste gas processing system further includes heat exchanger, described to change
Hot device is provided with interconnected the first import and first outlet and interconnected the second import and second outlet；The boiling
First inlet communication of the cooling zone outlet and the heat exchanger of stone rotary wheel device, the first outlet of the heat exchanger and the boiling
The desorption area inlet communication of stone rotary wheel device；The outlet of the combustion furnace and the second inlet communication of the heat exchanger.
Lacquer spraying waste gas processing system as described above, the lacquer spraying waste gas processing system further includes the second deduster, described
The second outlet of heat exchanger is connected to the exhaust gas inlet of second deduster, the ash bucket and the powder of second deduster
Storehouse connection.
Lacquer spraying waste gas processing system as described above, first deduster, second deduster are that cloth-bag type removes
Dirt device is filter drum type precipitator or one is fiber bag precipitator, another one is filter drum type precipitator.
Lacquer spraying waste gas processing system as described above, the ash bucket outlet port of first deduster and described second is removed
The ash bucket outlet port of dirt device is provided with star-shaped dust-discharging valve.
Lacquer spraying waste gas processing system as described above, the waste gas outlet of first deduster are also filled with the zeolite runner
The cooling zone inlet communication set.
Lacquer spraying waste gas processing system as described above, the combustion furnace are direct-fired combustion furnace.
Lacquer spraying waste gas processing system as described above, the heat exchanger are heat exchange of heat pipe or plate heat exchanger.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of specific embodiment of lacquer spraying waste gas processing system provided by the utility model.
The reference numerals are as follows in Fig. 1:
101 gas-solid mixers, 102 filler bins, 103 dusters, 104 first dedusters, 105 zeolite rotary wheel devices, 1051
Adsorption zone, 1052 cooling zones, 1053 desorption areas, 106 first blowers, 107 chimneys, 108 second blowers, 109 heat exchangers, 110 combustions
Burn furnace, 111 third blowers, 112 second dedusters, 113 star-shaped dust-discharging valves, 114 four fan devices.
Specific embodiment
In order to make those skilled in the art more fully understand the technical solution of the utility model, with reference to the accompanying drawing
The technical solution of the utility model is described in further detail with specific embodiment.
Referring to FIG. 1, Fig. 1 is a kind of signal of specific embodiment of lacquer spraying waste gas processing system provided by the utility model
Figure.
The lacquer spraying waste gas processing system include VOCS adsorbent equipment, positioned at VOCS adsorbent equipment upstream pretreatment unit,
Purification recovery device positioned at VOCS adsorbent equipment downstream.It should be noted that upstream and upstream be opposite lacquer spraying waste gas (with
Lower abbreviation exhaust gas) flow direction for.
Wherein, pretreatment unit is useless to reduce for pre-processing before exhaust gas enters VOCS adsorbent equipment to exhaust gas
The coating cloud viscosity and humidity of gas.
Wherein, purification recovery device is used to (be mixed with to from the mixture of pretreatment unit and the discharge of VOCS adsorbent equipment
VOCS, coating cloud and powder etc.) it burns.By burning, on the one hand the organic pollutants such as VOCS, coating cloud can be made to be oxidized to
Harmless carbon dioxide and water, so as to realize the substantially completely purification of exhaust gas；On the other hand, powder can be enable again
Raw, regenerated powder carry returns filler bin, so as to realize recycling for powder.
Lower mask body introduces the specific structure of each device:
Pretreatment unit
Pretreatment unit includes gas-solid mixer 101, filler bin 102, duster 103 and the first deduster 104.
Specifically, the powder in filler bin 102 can be pulverized limestone, limestone powder either zeolite powder etc..Duster
103 one end are connected to filler bin 102, and the other end is connected to gas-solid mixer 101.The waste gas outlet of gas-solid mixer 101 and
The exhaust gas inlet of one deduster 104 is connected to.The waste gas outlet of first deduster 104 and the exhaust gas inlet of VOCS adsorbent equipment connect
It is logical.
In use, exhaust gas is passed through in gas-solid mixer 101, the powder in filler bin 102 is sprayed into gas-solid and mixed by duster 103
In clutch 101, powder and exhaust gas are sufficiently mixed in gas-solid mixer 101, and coating cloud particle is adhered to and wrapped using powder
It wraps up in, plays the role of reducing coating cloud viscosity.Mixed exhaust gas enter the first deduster 104 in is filtered, coating cloud particle and
Powder is collected into the ash bucket of the first deduster 104.Since the viscosity of coating cloud reduces, effectively reduces and be sticky in the first dedusting
Coating cloud amount on the filtering material of device 104 extends the replacement cycle of the first deduster 104.
In addition, powder and exhaust gas are sufficiently mixed in gas-solid mixer 101, the moisture in exhaust gas can also be fully absorbed,
Play the role of reducing waste gas humidity, reduce the moisture entered in VOCS adsorbent equipment, is conducive to VOCS adsorbent equipment service life
Extension.
The lacquer spraying waste gas processing system reduces the discharge of solid waste compared to the dry filtration technique in background technique；It compares
Wet sprinkling technique in background technique has saved water resource, and will not generate the secondary pollutions such as waste water, does not also need additional
Wastewater treatment equipment is set, conducive to the simplification of system.
VOCS adsorbent equipment
VOCS adsorbent equipment preferred zeolite rotary wheel device 105.105 adsorption capacity of zeolite rotary wheel device is big, high temperature resistant and again
It is raw complete.In other embodiments, VOCS adsorbent equipment may be activated carbon adsorption device, and activated carbon adsorption device is ability
Technology known to field technique personnel, details are not described herein.
Specifically, zeolite rotary wheel device 105 includes adsorption zone 1051, cooling zone 1052, area 1053 is desorbed and each
The zeolite runner of continuous rotation in area.
Wherein, adsorption zone 1051 is provided with adsorption zone import and adsorption zone outlet, adsorption zone import and the first deduster 104
Waste gas outlet connection, adsorption zone outlet be connected to chimney 107, also, adsorption zone export chimney 107 between connecting pipe
The first blower 106 of upper setting.Under the action of the first blower 106, exhaust gas enters adsorption zone, and in adsorption zone, VOCS is by zeolite
Runner Adsorption, purified exhaust gas are discharged into atmosphere through chimney 107.
Wherein, cooling zone 1052 is provided with cooling zone import and cooling zone outlet.Cooling zone import is for being passed through cooling air
Body, to cool down zeolite runner.In diagram specific embodiment, cooling gas is the portion being discharged from the first deduster 104.
In other specific embodiments, cooling gas is also possible to fresh air.After having cooled down, cooling gas is exported through cooling zone and is arranged
Out.
Wherein, desorption area 1053 is provided with desorption area's import and the outlet of desorption area.Desorption area's import is for being passed through desorption gas
Body (typical temperature is at 100 DEG C or more), VOCS is desorbed under the action of desorption gas from zeolite runner, and with desorption gas
Body is together from the outlet discharge of desorption area.
In diagram specific embodiment, VOCS adsorbent equipment is also configured with heat exchanger 109, and heat exchanger 109 is provided with mutually
First import of connection and first outlet and interconnected the second import and second outlet.First import of heat exchanger 109
With cooling zone outlet, also, the second blower 108 is set between the first import and cooling zone outlet of heat exchanger 109, the
Under the action of two blowers 108, flows into heat exchanger 109 from the cooling gas of cooling zone outlet discharge, exchange heat in heat exchanger 109
Heating.The first outlet and desorption area's inlet communication of heat exchanger 109, the cooling gas after heat exchange heating are passed through as desorption gas
It is desorbed in area 1053.
Specifically, heat exchanger 109 can be heat exchange of heat pipe, or plate heat exchanger, the heat exchange of both types
Device has preferable heat transfer effect, and has preferable high temperature resistance.
Purification recovery device
Purification recovery device includes combustion furnace 110 and the second deduster 112.The import and the outlet of desorption area of combustion furnace 110
Connection, is also connected to the ash bucket of the first deduster 104, also, third is arranged between the import and the outlet of desorption area of combustion furnace 110
Blower 111.The outlet of combustion furnace 110 and the second inlet communication of heat exchanger 109.The exhaust gas inlet of second deduster 112 with it is upper
The second outlet connection of heat exchanger 109 is stated, the waste gas outlet of the second deduster 112 is connected to chimney 107, also, the second dedusting
Four fan device 114, the ash bucket and filler bin 102 of the second deduster 112 are provided between the waste gas outlet and chimney 107 of device 112
Connection.
In use, under the action of third blower 111, the desorption gas for being mixed with VOCS of desorption area outlet discharge with from
The coating cloud and powder of the ash bucket discharge of first deduster 104 mix in pipeline, are passed through 110 internal combustion of combustion furnace after mixing together
It burns, the organic pollutant (including VOCS, coating cloud etc.) in exhaust gas is made to be oxidized to harmless carbon dioxide and water, it is thus achieved that
The substantially completely purification of exhaust gas.The second import through heat exchanger 109 is flowed into and is changed the tail gas that regenerated powder is generated with burning together
In hot device 109, mutually exchanges heat with the cooling gas in heat exchanger 109, so that the temperature of cooling gas is risen to 100 DEG C or more, change
Cooling gas after heat heating is passed into desorption area 1053 as desorption gas.Combustion tail gas (carrying powder) after cooling
It is passed into filtering in the second deduster 112, filtered combustion tail gas discharges under the action of four fan device 114 through chimney 107
Into atmosphere, regenerated powder is collected into the ash bucket of the second deduster 112, and is transported in filler bin 102, is realized
The recycling of powder.
As above setting, makes the organic pollutant in exhaust gas be converted into harmless carbon dioxide and water, only using combustion furnace 110
Rate is up to 98%, meets and is higher than national emission standard；Meanwhile powder is regenerated using combustion furnace 110, regeneration rate is high
Up to 99%, recycling for powder is realized；Also, the heat that combustion tail gas has been recycled using heat exchanger 109, realizes heat
Recycle, be conducive to reduce system operation cost.
Specifically, above-mentioned combustion furnace 110 can be direct-fired combustion furnace, direct-fired combustion furnace burning is more abundant.
Specifically, above-mentioned first deduster 104 and above-mentioned second deduster 112 can be fiber bag precipitator or
It can also be filter drum type precipitator by fiber bag precipitator, another one of one for filter drum type precipitator.More specifically, it first removes
The ash bucket outlet port of dirt device 104 and the ash bucket outlet port of the second deduster 112 can configure star-shaped dust-discharging valve 113
(for component commonly used in the art, details are not described herein for specific structure).Also, the ash bucket of the first deduster 104 and combustion furnace 110
It can be on connecting pipe on connecting pipe between import and between the ash bucket and filler bin 102 of the second deduster 112
Transfer unit is set, which can be screw rod transmission component.Also, the first deduster 104 and the second deduster 112 are
Deashing component, such as pulse dust cleaning component or shaking and cleaning component can be configured.
Lacquer spraying waste gas processing system provided by the utility model is described in detail above.It is used herein specifically
A example is expounded the principles of the present invention and embodiment, and the above embodiments are only used to help understand originally
The method and its core concept of utility model.It should be pointed out that for those skilled in the art, not departing from
Under the premise of the utility model principle, several improvements and modifications can be made to this utility model, these improvement and modification
It falls into the protection scope of the utility model claims.
Claims (10)
1. a kind of lacquer spraying waste gas processing system, which is characterized in that the lacquer spraying waste gas processing system includes gas-solid mixer (101)
With the first deduster (104), the exhaust gas inlet of first deduster (104) and the exhaust gas of the gas-solid mixer (101) go out
Mouth connection；It further include filler bin (102) and duster (103), the duster (103) is used for will be in the filler bin (102)
Powder spray into the gas-solid mixer (101).
2. lacquer spraying waste gas processing system according to claim 1, which is characterized in that the lacquer spraying waste gas processing system is also wrapped
It includes zeolite rotary wheel device (105), the adsorption zone import of the zeolite rotary wheel device (105) and first deduster (104)
Waste gas outlet connection.
3. lacquer spraying waste gas processing system according to claim 2, which is characterized in that the lacquer spraying waste gas processing system is also wrapped
It includes combustion furnace (110), the ash bucket of first deduster (104) and the desorption area outlet of the zeolite rotary wheel device (105)
With the inlet communication of the combustion furnace (110).
4. lacquer spraying waste gas processing system according to claim 3, which is characterized in that the lacquer spraying waste gas processing system is also wrapped
It includes heat exchanger (109), the heat exchanger (109) is provided with interconnected the first import and first outlet and interconnected
Second import and second outlet；The cooling zone outlet of the zeolite rotary wheel device (105) with the first of the heat exchanger (109) into
Mouth connection, the desorption area inlet communication of the first outlet of the heat exchanger (109) and the zeolite rotary wheel device (105)；It is described
The outlet of combustion furnace (110) and second inlet communication of the heat exchanger (109).
5. lacquer spraying waste gas processing system according to claim 4, which is characterized in that the lacquer spraying waste gas processing system is also wrapped
It includes the second deduster (112), the exhaust gas inlet of the second outlet of the heat exchanger (109) and second deduster (112) connects
Logical, the ash bucket of second deduster (112) is connected to the filler bin (102).
6. lacquer spraying waste gas processing system according to claim 5, which is characterized in that first deduster (104), described
Second deduster (112) be fiber bag precipitator or be filter drum type precipitator or one be fiber bag precipitator, it is another
One is filter drum type precipitator.
7. lacquer spraying waste gas processing system according to claim 6, which is characterized in that the ash of first deduster (104)
Bucket outlet port and the ash bucket outlet port of second deduster (112) are provided with star-shaped dust-discharging valve (113).
8. according to the described in any item lacquer spraying waste gas processing systems of claim 2-7, which is characterized in that first deduster
(104) cooling zone inlet communication of the waste gas outlet also with the zeolite rotary wheel device (105).
9. according to the described in any item lacquer spraying waste gas processing systems of claim 3-7, which is characterized in that the combustion furnace (110)
For direct-fired combustion furnace.
10. according to the described in any item lacquer spraying waste gas processing systems of claim 4-7, which is characterized in that the heat exchanger (109)
For heat exchange of heat pipe or plate heat exchanger.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201822211720.9U CN209317354U (en) | 2018-12-26 | 2018-12-26 | A kind of lacquer spraying waste gas processing system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201822211720.9U CN209317354U (en) | 2018-12-26 | 2018-12-26 | A kind of lacquer spraying waste gas processing system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112011751A (en) * | 2020-08-18 | 2020-12-01 | 安徽徽柏环保科技有限公司 | Smoke and dust waste gas collection device of hot galvanizing pot |
-
2018
- 2018-12-26 CN CN201822211720.9U patent/CN209317354U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112011751A (en) * | 2020-08-18 | 2020-12-01 | 安徽徽柏环保科技有限公司 | Smoke and dust waste gas collection device of hot galvanizing pot |
| CN112011751B (en) * | 2020-08-18 | 2022-08-16 | 安徽徽柏环保科技有限公司 | Smoke and dust waste gas collection device of hot galvanizing pot |
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