CN216909722U - Low concentration dust-containing VOCs treatment system - Google Patents
Low concentration dust-containing VOCs treatment system Download PDFInfo
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- CN216909722U CN216909722U CN202220270587.8U CN202220270587U CN216909722U CN 216909722 U CN216909722 U CN 216909722U CN 202220270587 U CN202220270587 U CN 202220270587U CN 216909722 U CN216909722 U CN 216909722U
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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
Abstract
The utility model discloses a low-concentration dust-containing VOCs treatment system which comprises a dust removal system, a gas adsorption system, a catalytic combustion system and an automatic control system, wherein the dust removal system is connected with waste gas, an outlet of the dust removal system is connected with the gas adsorption system, the gas adsorption system is connected with the catalytic combustion system through a pipeline, the automatic control system controls a fan, a preheater and an electromagnetic valve in the dust removal system, the gas adsorption system and the catalytic combustion system through an industrial Ethernet, the dust removal system comprises a bag-type dust remover, a rotational flow spray tower and a dry filter, an inlet pipe of the bag-type dust remover is connected with the waste gas, an outlet of the bag-type dust remover is connected with an inlet of the rotational flow spray tower through a pipeline, a water pool is arranged at the bottom of the rotational flow spray tower, and the rotational flow spray tower is connected with the dry filter. The utility model has reasonable design; the device integrates the processes of filtering, dedusting, adsorption, desorption and catalytic combustion, and has the advantages of compactness, easy operation and high treatment efficiency.
Description
Technical Field
The utility model relates to a low-concentration dust-containing VOCs treatment system.
Background
Volatile Organic Compounds (VOCs) are important precursors for forming ozone, PM2.5 and secondary aerosol, not only pollute the environment, but also seriously harm human health, are one of bottlenecks restricting social and economic sustainable development, and have become the key and difficult point of atmospheric pollution prevention and treatment of the national gap. The remediation of VOCs has become one of the environmental issues of high social concern.
The VOCs treatment technology can be divided into a source substitution reduction technology, a process control technology and a tail end treatment technology, and the tail end treatment technology is mainly used. The common tail end treatment technologies for VOCs mainly include condensation technology, absorption technology, adsorption technology, high-temperature incineration technology, catalytic combustion technology, membrane separation technology, biotechnology, low-temperature plasma technology, photocatalytic technology and the like. In the practical application of VOCs treatment engineering, the aim of treatment is difficult to achieve by adopting a single treatment technology and a single treatment system, and the current national emission standard is difficult to achieve.
The VOCs that workshop sections such as application, printing, electromechanics, household electrical appliances, shoemaking, artificial quartz slate manufacturing, lithium ion battery positive pole material discharged can contain a certain amount of dust usually in, and the gaseous VOCs that contains dust directly gets into VOCs treatment facility, causes equipment damage and secondary pollution easily, influences the treatment effect, is difficult to realize lasting discharge to reach the standard.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a low-concentration dust-containing VOCs treatment system to solve the technical problem.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a low concentration dust-laden VOCs treatment system, includes dust pelletizing system, gaseous adsorption system, catalytic combustion system, automatic control system, dust pelletizing system is connected with waste gas, and dust pelletizing system's export is connected with gaseous adsorption system, and gaseous adsorption system is connected with catalytic combustion system through the pipeline, and automatic control system controls fan, pre-heater, solenoid valve in to dust pelletizing system, gaseous adsorption system, the catalytic combustion system through industrial ethernet, dust pelletizing system includes sack cleaner, whirl spray column, dry-type filter, and the import pipe and the waste gas of sack cleaner are connected, and the export of sack cleaner is through the access connection of pipeline with whirl spray column, and the bottom of whirl spray column is equipped with the pond, and whirl spray column is connected with dry-type filter.
Preferably, the gas adsorption system comprises an activated carbon adsorption bed, and activated carbon in the activated carbon adsorption bed is arranged in a honeycomb shape.
Preferably, the catalytic combustion system comprises a catalytic combustion chamber, and the catalytic combustion chamber is connected with the activated carbon adsorption bed through a pipeline to form a loop.
Preferably, the active carbon adsorption bed is the design of tower form, installs a plurality of supporting networks in the active carbon adsorption bed, and the supporting network is fixed on the active carbon adsorption bed inner wall through the bracing piece, installs a plurality of active carbon posts on the supporting network, and the top of active carbon adsorption bed is installed and is transferred the inflator, and the top of transferring the inflator is equipped with the gag lever post.
Preferably, a plurality of round holes are opened in the outside of air adjusting cylinder, the top of air adjusting cylinder is the design of shutoff formula, and the upper portion of air adjusting cylinder is equipped with the spring of screw installation, and the spring is connected with the lead screw through the bearing, and the lead screw runs through the gag lever post, and the gag lever post is the design of L type.
Preferably, the catalytic combustion chamber comprises a flame arrester, a heat exchanger and a catalyst column, the flame arrester is connected with the purification chamber through a pipeline, the heat exchanger and the catalyst column are installed in the purification chamber, the purification chamber is connected with a fan, and gas after heat exchange enters the activated carbon adsorption bed again.
Compared with the prior art, the utility model has the following advantages: the utility model has reasonable design; the system has simple structure, easy installation, automatic control operation, low operation cost, low energy consumption in the treatment process and high treatment efficiency, and is suitable for treating organic waste gas with dust content, low concentration and high flux; the flame arrester can prevent flame from returning; the distance of the screw rod entering the limiting rod can be changed by the air adjusting cylinder according to actual conditions, so that the pressure of the spring on the air adjusting cylinder is changed, if the pressure of the spring is larger, the leakage of the circular hole on the air adjusting cylinder is less, so that the adsorption effect is improved, and if the pollutant in waste gas is less, the leakage of the circular hole on the air adjusting cylinder can be increased, so that the processing speed is increased; the hot air can regenerate the active carbon, so that the waste gas is continuously treated.
Drawings
FIG. 1 is a schematic view of a treatment system for low-concentration dust-containing VOCs according to the present invention.
FIG. 2 is a schematic sectional view of an activated carbon adsorption bed of the low-concentration dust-containing VOCs treatment system of the present invention.
Fig. 3 is a schematic view of a support net of the low-concentration dust-containing VOCs abatement system of the present invention.
FIG. 4 is a schematic view of a gas regulating cylinder of the low concentration dust-containing VOCs treatment system of the present invention.
Fig. 5 is a schematic view of a catalytic combustor of the system for treating low-concentration dust-containing VOCs according to the present invention.
Detailed Description
The utility model is explained in further detail below with reference to the figures and the specific embodiments.
As shown in fig. 1-5, a low concentration dust-containing VOCs treatment system comprises a dust removal system, a gas adsorption system, a catalytic combustion system, and an automatic control system, wherein the dust removal system is connected with the exhaust gas, an outlet of the dust removal system is connected with the gas adsorption system, the gas adsorption system is connected with the catalytic combustion system through a pipeline, and the automatic control system is connected with the catalytic combustion system through a pipelineThe industrial Ethernet controls a fan, a preheater and an electromagnetic valve in a dust removal system, a gas adsorption system and a catalytic combustion system, the dust removal system comprises a bag-type dust remover 1, a cyclone spray tower 2 and a dry-type filter 4, an inlet pipe of the bag-type dust remover 1 is connected with waste gas, an outlet of the bag-type dust remover 1 is connected with an inlet of the cyclone spray tower 2 through a pipeline, a water tank 3 is arranged at the bottom of the cyclone spray tower 2, the cyclone spray tower 2 is connected with the dry-type filter 4, the gas adsorption system comprises an active carbon adsorption bed 5, active carbon in the active carbon adsorption bed 5 is arranged in a honeycomb shape, the catalytic combustion system comprises a catalytic combustion chamber 6, the catalytic combustion chamber 6 is connected with the active carbon adsorption bed 5 through a pipeline to form a loop, and the bag-type dust remover, an upper box body consists of a bag cage, a high-temperature dust removal bag, a dust removal flower plate, a venturi tube, a controller, an inspection door, The air bag and the dust removal box body are arranged; the lower box body consists of a dust removing hopper, a bracket and a dust discharging device; the pulse spraying system consists of a control cabinet, a control valve, a pulse valve and a spraying pipe, wherein one end of the spraying pipe is fixed with the pulse valve, the other end of the spraying pipe is provided with a nozzle, the nozzle is arranged corresponding to an opening at the upper end of a filter bag, dust-containing organic waste gas enters a lower box body from an air inlet, enters an upper box body from a venturi tube through the filter bag and flows out from an air outlet, a controller regularly and sequentially triggers the control valves and opens the pulse valve to spray compressed air in bubbles from a nozzle pipe eye, ambient air (secondary air) which is several times of primary air is induced to enter the filter bag through the venturi tube to enable the filter bag to instantly and rapidly expand and fall dust into a dust hopper along with the reverse action of the air flow, and gas is discharged through a dust shaking valve. Dust-containing waste gas and atomized water enter the cyclone spray tower together from the air inlet through cyclone, dust particles and fine particles are absorbed by water mist, the waste gas flows into the bottom after being contacted with the water mist through the cyclone separation of water drops, the coarsely removed smoke longitudinally passes through annular water mist sprayed by a two-stage annular nozzle, the dust-containing waste gas is further absorbed and purified, clear air after dust removal is introduced into a dry filter through an air pipe, sewage enters the bottom after being subjected to cyclone separation and then enters a precipitation sewage separation tank through a backflow pipeline, the clarified water overflows into a pump water tank and is injected into the cyclone spray tower through a pumpThe dry filter is recycled, the fiber materials (such as glass fibers, carbon fibers and the like) are filled in the dry filter, different filter material combinations can be effectively passed through during filtering, the density can be adjusted along with the thickness of the fibers, and the dry filter can be freely adjusted according to requirements to achieve higher filtering efficiency. The material can be flapped and shaken off for repeated use for a plurality of times after being absorbed and saturated, the use cost is reduced, the surface of the fiber of the filtering material is subjected to flame retardant treatment, the fire risk is avoided because of the co-aggregation, all equipment does not need a water pump, the corrosion is not needed, the equipment structure is simple, the investment is low, the active carbon adsorption bed 5 is designed in a tower shape, a plurality of supporting nets 7 are arranged in the active carbon adsorption bed 5, the supporting nets 7 are fixed on the inner wall of the active carbon adsorption bed 5 through supporting rods 11, a plurality of active carbon columns 8 are arranged on the supporting nets 7, an air adjusting cylinder 9 is arranged at the top of the active carbon adsorption bed 5, a limiting rod 10 is arranged above the air adjusting cylinder 9, a plurality of round holes 18 are arranged at the outer side of the air adjusting cylinder 9, the top of the air adjusting cylinder 9 is designed in a plugging mode, a spring 13 installed by a screw is arranged at the upper part of the air adjusting cylinder 9, the spring 13 is connected with a screw rod 12 through a bearing, the screw rod 12 penetrates through the limiting rod 10, and the limiting rod 10 is designed in an L shape, including spark arrester 14, heat exchanger 15, catalyst post 16 in the catalytic combustion chamber 6, spark arrester 14 is connected with the clean room through the pipeline, installs heat exchanger 15, catalyst post 16 in the clean room, and the clean room is connected with fan 17, and gas after the heat transfer reenters in the active carbon adsorption bed 5, the ceramic honeycomb body that surface loading platinum, palladium noble metal were the catalyst is generally adopted to the catalytic combustion chamber, after starting heating device, gaseous entering internal circulation, when the hot gas source reached the boiling point of organic matter, the organic matter was desorbed from the active carbon, got into the catalytic combustion chamber and carried out catalytic decomposition to CO2And H2And O, releasing energy simultaneously, utilizing the released energy to enter the adsorption bed for desorption, stopping the heating device completely, maintaining spontaneous combustion of the organic waste gas in the catalytic combustion chamber, regenerating tail gas, and circulating until the organic matters are completely separated from the interior of the activated carbon and decomposed in the catalytic chamber, regenerating the activated carbon, and catalytically decomposing the organic matters.
The foregoing is a preferred embodiment of the present invention, and it will be apparent to those skilled in the art that variations, modifications, substitutions and alterations can be made in the embodiment without departing from the principles and spirit of the utility model.
Claims (6)
1. A low-concentration dust-containing VOCs treatment system, which comprises a dust removal system, a gas adsorption system, a catalytic combustion system and an automatic control system, it is characterized in that the dust removal system is connected with the waste gas, the outlet of the dust removal system is connected with the gas adsorption system, the gas adsorption system is connected with the catalytic combustion system through a pipeline, the automatic control system controls the fans, the preheaters and the electromagnetic valves in the dust removal system, the gas adsorption system and the catalytic combustion system through an industrial Ethernet, the dust removal system comprises a bag-type dust collector (1), a cyclone spray tower (2) and a dry filter (4), an inlet pipe of the bag-type dust collector (1) is connected with waste gas, an outlet of the bag-type dust collector (1) is connected with an inlet of the cyclone spray tower (2) through a pipeline, a water tank (3) is arranged at the bottom of the cyclone spray tower (2), and the cyclone spray tower (2) is connected with the dry filter (4).
2. A low concentration dust-laden VOCs remediation system as claimed in claim 1, wherein the gas adsorption system comprises an activated carbon adsorption bed (5), and the activated carbon in the activated carbon adsorption bed (5) is arranged in a honeycomb form.
3. The treatment system for low-concentration dust-containing VOCs according to claim 1, wherein the catalytic combustion system comprises a catalytic combustor (6), and the catalytic combustor (6) is connected with the activated carbon adsorption bed (5) through a pipeline to form a loop.
4. The system for treating low-concentration dust-containing VOCs according to claim 2, wherein the activated carbon adsorption bed (5) is designed in a tower shape, a plurality of support nets (7) are installed in the activated carbon adsorption bed (5), the support nets (7) are fixed on the inner wall of the activated carbon adsorption bed (5) through support rods (11), a plurality of activated carbon columns (8) are installed on the support nets (7), a gas regulating cylinder (9) is installed at the top of the activated carbon adsorption bed (5), and a limit rod (10) is arranged above the gas regulating cylinder (9).
5. The system for treating low-concentration dust-containing VOCs according to claim 4, wherein a plurality of round holes (18) are formed in the outer side of the air adjusting cylinder (9), the top of the air adjusting cylinder (9) is designed in a plugging manner, a spring (13) mounted by a screw is arranged at the upper part of the air adjusting cylinder (9), the spring (13) is connected with the lead screw (12) through a bearing, the lead screw (12) penetrates through the limiting rod (10), and the limiting rod (10) is designed in an L shape.
6. The system for treating the low-concentration dust-containing VOCs (volatile organic compounds) as claimed in claim 3, wherein the catalytic combustion chamber (6) comprises a flame arrester (14), a heat exchanger (15) and a catalyst column (16), the flame arrester (14) is connected with the purification chamber through a pipeline, the heat exchanger (15) and the catalyst column (16) are installed in the purification chamber, the purification chamber is connected with a fan (17), and the gas after heat exchange enters the activated carbon adsorption bed (5) again.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220270587.8U CN216909722U (en) | 2022-02-10 | 2022-02-10 | Low concentration dust-containing VOCs treatment system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220270587.8U CN216909722U (en) | 2022-02-10 | 2022-02-10 | Low concentration dust-containing VOCs treatment system |
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| CN216909722U true CN216909722U (en) | 2022-07-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116036835A (en) * | 2022-12-28 | 2023-05-02 | 苏州绿朗环境科技有限公司 | Lithium battery electrolyte waste gas treatment system |
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- 2022-02-10 CN CN202220270587.8U patent/CN216909722U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116036835A (en) * | 2022-12-28 | 2023-05-02 | 苏州绿朗环境科技有限公司 | Lithium battery electrolyte waste gas treatment system |
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