CN205650043U - Continuous purifier of waste gas that sprays paint - Google Patents
Continuous purifier of waste gas that sprays paint Download PDFInfo
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- CN205650043U CN205650043U CN201620283742.4U CN201620283742U CN205650043U CN 205650043 U CN205650043 U CN 205650043U CN 201620283742 U CN201620283742 U CN 201620283742U CN 205650043 U CN205650043 U CN 205650043U
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Abstract
The utility model discloses a continuous purifier of waste gas that sprays paint is provided with first adsorption zone, second adsorption zone, preheating zone and pyrolysis zone, first adsorption zone all is connected with the gas collection pipeline with the waste gas import of second adsorption zone, first adsorption zone with the exhaust port of second adsorption zone all discharges through the discharge tube and adsorbs the waste gas after handling, the desorption heat air intlet of first adsorption zone and second adsorption zone all is connected in the export of preheating zone, the hot -air export of first adsorption zone and second adsorption zone with the import of pyrolysis zone links to each other, gas after the export exhaust heat decomposition of pyrolysis zone. It is showing the effect: to operations and maintenance require lowerly, greatly reduced investment and working costs, can not use the gas, require to hang down to the combustion control, still avoid production secondary pollution, the adsorption process can go on in succession, and the treatment effeciency of the waste gas that sprays paint is high.
Description
Technical field
This utility model relates to atmospheric environment protection field, specifically, is a kind of lacquer spraying waste gas continuous purification device.
Background technology
Along with environmental requirement and the raising year by year of Environmental Inputs, the improvement of atmosphere quality is the most inconspicuous, and haze frequency in various places is existing.After SO2, NOx and dust etc. become control object, volatile organic matter (VOCs) has also been included into atmosphere pollution and has controlled category.
In prior art, the absorption of VOCs treatment technology main active charcoal, condensation recovery, Adsorption Concentration+oxidizing fire (heat-accumulation combustion RTO, heat reclamation type heating power burn TNV or heat accumulating type catalysis RCO), low-temperature plasma, photocatalysis and bioanalysis etc., wherein Adsorption Concentration+oxidizing fire is to process Wind Volume, the common technology of low concentration VOCs.
One of feature of lacquer spraying waste gas is exactly Wind Volume and low concentration VOCs.And common technology has following defects that and Adsorption Concentration+oxidative combustion processes lacquer spraying waste gas to there is problems of the requirement to operation and maintenance higher, investment and operation and maintenance cost are high；Heat-accumulation combustion RTO and heat reclamation type heating power burning TNV method, it is generally required to use combustion gas, require height to Combustion System, also can produce secondary pollution；Heat accumulating type catalysis RCO method needs to use the expensive and catalyst of easy in inactivation, the most also wants the catalyst that harmless treatment inactivates, it is to avoid secondary pollution.These factors have impact on the popularization of lacquer spraying waste gas VOCs Treatment process.
Accordingly, it would be desirable to develop the investment for lacquer spraying waste gas and operating cost is low, VOCs purification techniques easy and simple to handle, reduce the economical and environmentally friendly pressure of industrial undertaking.
Summary of the invention
For the deficiencies in the prior art, the purpose of this utility model is to provide a kind of lacquer spraying waste gas continuous purification device, this device uses subregion desorbing and electrical heating isolation, easy and simple to handle, disclosure satisfy that and produce needs continuously, investment and operating cost can be greatly reduced, effectively alleviate industrial undertaking's economical and environmentally friendly pressure；Two adsorption zone rotation work are set, adsorption process can be realized and be carried out continuously.
For reaching above-mentioned purpose, the technical solution adopted in the utility model is as follows:
A kind of lacquer spraying waste gas continuous purification device, it it is critical only that: is provided with the first adsorption zone, second adsorption zone, preheating zone and pyrolysis zone, described first adsorption zone is all connected with collecting pipe with the exhaust gas inlet of the second adsorption zone, the Waste gas outlet of described first adsorption zone and described second adsorption zone all discharges the waste gas after adsorption treatment by discharge tube, described first adsorption zone is both connected in the outlet of described preheating zone with the heat of desorption air intlet of the second adsorption zone, described first adsorption zone is connected with the import of the hot air outlet of the second adsorption zone with described pyrolysis zone, the gas after thermal decomposition is discharged in the outlet of described pyrolysis zone.
This device is in running, and described first adsorption zone carries out adsorption process and desorption process time different from the second adsorption zone.When carrying out lacquer spraying waste gas and processing, lacquer spraying waste gas enters one of them adsorption zone of device after collection, pretreatment by collecting pipe, and the waste gas being adsorbed purifying afterwards passes through discharge tube and directly discharges；Being preheating to the hot-air of uniform temperature by preheating zone enter adsorption zone and adsorbed VOCs desorbing got off, and be flowed into pyrolysis zone with hot-air, by pyrolysis zone is heated to uniform temperature, VOCs is pyrolyzed as CO2, water etc., then drains in air；Then another adsorption zone is utilized to repeat said process.This device passes through thermal decomposition manner, it is possible to effectively lacquer spraying waste gas is carried out purified treatment, and compared to traditional lacquer spraying waste gas treating method, the requirement to operation and maintenance is relatively low, and investment and operation and maintenance cost are few；Combustion gas will not be used, Combustion System is required low, it is thus also avoided that produce secondary pollution；And two adsorption zones can be carried out rotation work, i.e. one adsorption zone carries out adsorption process, and another carries out desorption process, thus the adsorption process realizing this device can be carried out continuously, and then improves the treatment effeciency of lacquer spraying waste gas.
Further, exhaust gas inlet, Waste gas outlet, heat of desorption air intlet and hot air outlet in described first adsorption zone are respectively arranged with the first valve, the second valve, the 3rd valve and the 4th valve, and exhaust gas inlet, Waste gas outlet, heat of desorption air intlet and hot air outlet in described second adsorption zone are respectively arranged with the 5th valve, the 6th valve, the 7th valve and the 8th valve.
By each valve above-mentioned, it is possible not only to realize flexibly the control of regional duty, but also as required two adsorption zones can be carried out rotation work, i.e. one adsorption zone carries out adsorption process, and another carries out desorption process, thus the adsorption process realizing this device can be carried out continuously, and then improve the treatment effeciency of lacquer spraying waste gas.
Further, described preheating zone and pyrolysis zone all use Electric heating to ensure the temperature needed for thermal decomposition process.
Using Electric heating, burn TNV method compared to traditional Adsorption Concentration+oxidative combustion and heat-accumulation combustion RTO and heat reclamation type heating power, the requirement to operation and maintenance is relatively low, and investment and operation and maintenance cost are few；Combustion gas will not be used, Combustion System is required low, it is thus also avoided that produce secondary pollution.
Further, described first adsorption zone and the second adsorption zone all use subregion desorption mode when being passed through hot air regeneration.
Use subregion desorption mode, greatly reduce gas desorption quantity and the required energy of thermal decomposition, significantly reduce cost of investment and operating cost that lacquer spraying waste gas purifies.Concrete mode is: adsorption zone being divided into from laterally or longitudinally direction multiple decile, each subregion desorbing certain time, after the desorbing once successively of each subregion, then repeats desorbing successively according to needs, desorbing number of times can be manually set as required with desorption time.
Further, the adsorbate that described first adsorption zone and the second adsorption zone use is at least one in granular active carbon, particulate molecular sieve, NACF, Alveolate activated carbon, cellular molecular sieve.
Remarkable result of the present utility model is: simple in construction, easy and simple to handle, use subregion desorbing and electrical heating isolation, effectively lacquer spraying waste gas can be carried out purified treatment, compared to traditional lacquer spraying waste gas processing method, requirement to operation and maintenance is relatively low, significantly reduces investment and operating cost；Combustion gas will not be used, Combustion System is required low, it is thus also avoided that produce secondary pollution, effectively alleviate industrial undertaking's economical and environmentally friendly pressure；And two adsorption zones can be carried out rotation work, i.e. one adsorption zone carries out adsorption process, and another carries out desorption process, and occupation mode is flexible, thus the adsorption process realizing this device can be carried out continuously, and then improves the treatment effeciency of lacquer spraying waste gas.
Accompanying drawing explanation
Fig. 1 is pipeline structure schematic diagram of the present utility model；
Fig. 2 is described subregion desorbing schematic diagram.
Detailed description of the invention
Below in conjunction with the accompanying drawings detailed description of the invention of the present utility model and operation principle are described in further detail.
As shown in Figure 1, a kind of lacquer spraying waste gas continuous purification device, it is provided with the first adsorption zone 1, second adsorption zone 2, preheating zone 3 and pyrolysis zone 4, described first adsorption zone 1 is all connected with collecting pipe with the exhaust gas inlet of the second adsorption zone 2, the Waste gas outlet of described first adsorption zone 1 and described second adsorption zone 2 all discharges the waste gas after adsorption treatment by discharge tube, the heat of desorption air intlet of described first adsorption zone 1 and the second adsorption zone 2 is both connected in the outlet of described preheating zone 3, described first adsorption zone 1 is connected with the import of the hot air outlet of the second adsorption zone 2 with described pyrolysis zone 4, the gas after thermal decomposition is discharged in the outlet of described pyrolysis zone 4.
It can also be seen that from Fig. 1, exhaust gas inlet, Waste gas outlet, heat of desorption air intlet and hot air outlet in described first adsorption zone 1 is respectively arranged with the first valve the 5, second valve the 6, the 3rd valve 7 and the 4th valve 8, and exhaust gas inlet, Waste gas outlet, heat of desorption air intlet and the hot air outlet in described second adsorption zone 2 is respectively arranged with the 5th valve the 9, the 6th valve the 10, the 7th valve 11 and the 8th valve 12.
In this example, described preheating zone 3 and pyrolysis zone 4 all use Electric heating to ensure the temperature needed for thermal decomposition process.
The adsorbate that described first adsorption zone 1 and the second adsorption zone 2 use is at least one in granular active carbon, particulate molecular sieve, NACF, Alveolate activated carbon, cellular molecular sieve.And this example is preferably cellular activated carbon, and the most accordingly, the temperature < 120 DEG C of entrance adsorption zone hot-air,.
As it is shown in figure 1, the handling process of this device is as follows:
(a) adsorption cleaning:
Close the 5th valve 9 and the 6th valve 10 of the second adsorption zone 2 correspondence, open the first valve 5 and the second valve 6 on the first adsorption zone 1, close the 3rd valve 7 and the 4th valve 8；Lacquer spraying waste gas enters the first adsorption zone 1 of purifier after collection, pretreatment, and the adsorbed waste gas purified directly is discharged by discharge tube afterwards；
When the first adsorption zone 1 adsorb saturated after, first adsorption zone 1 starts desorbing, starting working in second adsorption zone 1: closes the first valve 5 and the second valve 6 on the first adsorption zone 1, close the 7th valve 11 and the 8th valve 12, open the 5th valve 9 and the 6th valve 10, lacquer spraying waste gas enters the second adsorption zone 2 of purifier after collection, pretreatment, and the adsorbed waste gas purified directly is discharged by discharge tube afterwards；
When the second adsorption zone 2 adsorb saturated after, the second adsorption zone 2 starts desorbing, starts working again in the first adsorption zone 1.Both first adsorption zone 1 and the second adsorption zone 2 rotation work, it is achieved device adsorption process is carried out continuously.
The desorbing of (b) subregion:
The desorbing of the first adsorption zone 1: close the first valve 5 and the second valve 6, opens the 3rd valve 7 and the 4th valve 8；The hot-air that preheated district 3 is preheating to uniform temperature enters the first adsorption zone 1 and adsorbed VOCs desorbing is got off, and flows into pyrolysis zone 4 with hot-air；
The desorbing of the second adsorption zone 2: close the 5th valve 9 and the 6th valve 10, opens the 7th valve 11 and the 8th valve 12；The hot-air that preheated district 3 is preheating to uniform temperature enters the second adsorption zone 2 and adsorbed VOCs desorbing is got off, and flows into pyrolysis zone 4 with hot-air.
In this example, described first adsorption zone 1 and the second adsorption zone 2 all use subregion desorption mode when being passed through hot air regeneration.Shown subregion desorption mode sees Fig. 2, adsorption zone is divided equally 5～11 deciles, hot air outlet size after preheating is consistent with each partitions sizes, each subregion desorption time about 5 minutes, each subregion desorbing certain time, after the desorbing once successively of each subregion, then repeating desorbing successively according to needs, desorbing number of times can be manually set as required with desorption time.
In lacquer spraying waste gas purification process, carry out during the desorption process difference of the desorption process of the first adsorption zone 1 and the second adsorption zone 2.
C () electrical heating is decomposed:
First adsorption zone 1 or the second adsorption zone 2 are desorbed after the VOCs got off enters pyrolysis zone 4 with hot-air and are electrically heated to 850 DEG C, and VOCs is pyrolyzed and then discharges such as air into CO2, water etc..
Claims (5)
1. a lacquer spraying waste gas continuous purification device, it is characterized in that: be provided with the first adsorption zone (1), second adsorption zone (2), preheating zone (3) and pyrolysis zone (4), described first adsorption zone (1) is all connected with collecting pipe with the exhaust gas inlet of the second adsorption zone (2), the Waste gas outlet of described first adsorption zone (1) and described second adsorption zone (2) all discharges the waste gas after adsorption treatment by discharge tube, described first adsorption zone (1) is both connected in the outlet of described preheating zone (3) with the heat of desorption air intlet of the second adsorption zone (2), described first adsorption zone (1) is connected with the import of described pyrolysis zone (4) with the hot air outlet of the second adsorption zone (2), the gas after thermal decomposition is discharged in the outlet of described pyrolysis zone (4).
Lacquer spraying waste gas continuous purification device the most according to claim 1, it is characterized in that: in the exhaust gas inlet of described first adsorption zone (1), Waste gas outlet, heat of desorption air intlet and hot air outlet are respectively arranged with the first valve (5), second valve (6), 3rd valve (7) and the 4th valve (8), exhaust gas inlet described second adsorption zone (2), Waste gas outlet, heat of desorption air intlet and hot air outlet are respectively arranged with the 5th valve (9), 6th valve (10), 7th valve (11) and the 8th valve (12).
Lacquer spraying waste gas continuous purification device the most according to claim 2, it is characterised in that: described preheating zone (3) and pyrolysis zone (4) all use Electric heating to ensure the temperature needed for thermal decomposition process.
4. according to the lacquer spraying waste gas continuous purification device described in claim 1 or 2 or 3, it is characterised in that: described first adsorption zone (1) and the second adsorption zone (2) all use subregion desorption mode when being passed through hot air regeneration.
Lacquer spraying waste gas continuous purification device the most according to claim 4, it is characterised in that: the adsorbate that described first adsorption zone (1) and the second adsorption zone (2) use is at least one in granular active carbon, particulate molecular sieve, NACF, Alveolate activated carbon, cellular molecular sieve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620283742.4U CN205650043U (en) | 2016-04-07 | 2016-04-07 | Continuous purifier of waste gas that sprays paint |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620283742.4U CN205650043U (en) | 2016-04-07 | 2016-04-07 | Continuous purifier of waste gas that sprays paint |
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| CN205650043U true CN205650043U (en) | 2016-10-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107824004A (en) * | 2017-11-28 | 2018-03-23 | 上海亿景能源科技有限公司 | Surmount valve adsorption-desorption combination unit |
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2016
- 2016-04-07 CN CN201620283742.4U patent/CN205650043U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107824004A (en) * | 2017-11-28 | 2018-03-23 | 上海亿景能源科技有限公司 | Surmount valve adsorption-desorption combination unit |
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