CN211189649U

CN211189649U - With concentrated catalytic combustion processing apparatus of absorption

Info

Publication number: CN211189649U
Application number: CN201920625154.8U
Authority: CN
Inventors: 王锐; 谭成萍
Original assignee: Chongqing Qingshuo Environmental Technology Co ltd
Current assignee: Chongqing Qingshuo Environmental Technology Co ltd
Priority date: 2019-05-05
Filing date: 2019-05-05
Publication date: 2020-08-07
Anticipated expiration: 2029-05-05

Abstract

The utility model discloses an adsorption concentration catalytic combustion treatment device, a dry filter is communicated with an active carbon adsorption bed, and a rear adsorption fan is connected with a high-altitude discharge cylinder; the rear end of the activated carbon adsorption bed is also communicated with the catalytic combustion bed, and an air inlet and an air outlet of the desorption fan are respectively communicated with an outlet of the catalytic combustion bed and a hot air inlet of the mixed flow heat exchanger; the mixed flow fan is connected to a cold air inlet of the mixed flow heat exchanger, and a mixed flow outlet of the mixed flow heat exchanger is respectively communicated with the front end of the activated carbon adsorption bed and the high-altitude discharge cylinder; the nitrogen making unit is respectively communicated with the rear end of the activated carbon adsorption bed and the inlet of the catalytic combustion bed through a nitrogen pressure reducing valve, and the inlet of the catalytic combustion bed is communicated with the atmosphere through a catalytic refreshment valve. Organic matter in the organic waste gas is adsorbed through the active carbon, after the active carbon is saturated, the active carbon is concentrated and regenerated through heating, the concentrated waste gas is combusted and discharged at high temperature, the active carbon can be continuously recycled, and the enterprise cost is reduced.

Description

With concentrated catalytic combustion processing apparatus of absorption

Technical Field

The utility model belongs to the waste gas treatment field especially relates to an adsorb concentrated catalytic combustion processing apparatus.

Background

The organic waste gas contains a large amount of toxic and harmful organic matters, micro pollutants and the like, and if the organic matters and the like contained in the organic waste gas are not purified, the air pollution is caused by the emission of the waste gas.

The active carbon adsorption treatment is the most common and effective organic waste gas treatment method at present, waste gas is provided with positive pressure or negative pressure by a fan and enters an active carbon treatment tower, and unbalanced or unsaturated molecular attraction or chemical bond force exists on the solid surface of the active carbon, so that gas molecules can be adsorbed when the solid surface is contacted with gas, and the gas molecules are concentrated and kept on the surface of the active carbon, thereby achieving the purpose of purification.

However, the adsorption device using the activated carbon as a medium is used for a certain time, the activated carbon can reach a saturated state, the activated carbon can not adsorb pollutants in organic waste gas, if the activated carbon is not replaced in time, the whole system is in a failure state, the waste gas emission can not reach the standard, the atmospheric pollution can be caused, and enterprises face risks of legal responsibility and social responsibility; if the activated carbon is replaced, the replacement cost of the activated carbon is very high, and the replacement frequency of the activated carbon is very frequent every year, so the economic burden of an enterprise is large.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an adsorb concentrated catalytic combustion processing apparatus to solve the problem that frequently change the active carbon expense high.

The utility model provides an above-mentioned technical problem's technical scheme as follows:

an adsorption concentration catalytic combustion treatment device comprises a dry filter arranged at an inlet of the adsorption concentration catalytic combustion treatment device, wherein the dry filter is communicated with an active carbon adsorption bed, and a rear adsorption fan communicated with the rear end of the active carbon adsorption bed is connected to a high-altitude discharge cylinder; the rear end of the activated carbon adsorption bed is also communicated with the catalytic combustion bed, and an air inlet and an air outlet of the desorption fan are respectively communicated with an outlet of the catalytic combustion bed and a hot air inlet of the mixed flow heat exchanger; the mixed flow fan is connected to a cold air inlet of the mixed flow heat exchanger, and a mixed flow outlet of the mixed flow heat exchanger is respectively communicated with the front end of the activated carbon adsorption bed and the high-altitude discharge cylinder; the nitrogen making unit is respectively communicated with the rear end of the activated carbon adsorption bed and the inlet of the catalytic combustion bed through a nitrogen pressure reducing valve, and the inlet of the catalytic combustion bed is communicated with the atmosphere through a catalytic refreshment valve.

The utility model discloses concentrated catalytic combustion processing apparatus of absorption, it is further, adopt the active carbon adsorption bed of two parallelly connected settings, the adsorption air valve is installed at both ends around two active carbon adsorption beds, guarantees sufficient adsorption treatment amount of wind to can guarantee normal adsorption treatment through another active carbon adsorption bed when one of them active carbon adsorption bed trouble or overhaul.

The utility model discloses concentrated catalytic combustion processing apparatus of absorption of above-mentioned embodiment, it is further, for causing upper reaches conflagration or other dangers when avoiding raising the temperature the desorption to the active carbon, install the fire prevention valve at the dry filter front end.

The utility model discloses concentrated catalytic combustion processing apparatus adsorbs of above-mentioned embodiment, further, for avoiding nitrogen making unit to cause the influence to adsorbing or the normal course of technology of desorption, install the nitrogen gas valve on the inlet connecting pipeline of nitrogen making unit and active carbon adsorption bed rear end and catalytic combustion bed.

The utility model discloses the concentrated catalytic combustion processing apparatus of absorption passes through the organic matter in the active carbon adsorption organic waste gas, and after the active carbon saturation, through the concentrated regeneration active carbon of heating, concentrated waste gas high temperature combustion discharges, and the active carbon can realize lasting regeneration, has reduced the expense of enterprise.

Drawings

The above and/or other aspects and advantages of the present invention will become more apparent and more readily appreciated from the detailed description taken in conjunction with the following drawings, which are given by way of illustration only and not by way of limitation, wherein:

FIG. 1 is a schematic structural view of an adsorption concentration catalytic combustion processing apparatus according to an embodiment;

FIG. 2 is a top view of an adsorption, concentration and catalytic combustion treatment apparatus according to an embodiment of the present invention;

FIG. 3 is a flow chart of an adsorption, concentration and catalytic combustion process according to an embodiment of the present invention;

in the drawings, the components represented by the respective reference numerals are listed below:

1. a discharge vessel platform support; 2. a nitrogen making unit; 3. a high-altitude discharge cylinder; 4. a rear adsorption fan; 5. an adsorption valve; 6. overhauling the platform; 7. an activated carbon adsorption bed; 8. an electric cabinet; 9. an adsorption pipeline; 10. desorbing the pipeline; 11. a dry filter; 12. a mixed flow fan; 13. a fire damper; 14. a mixed flow heat exchanger; 15. a desorption fan; 16. a damper valve; 17. a flame arrestor; 18. a catalytic combustion bed; 19. catalytic refreshment valve.

Detailed Description

Hereinafter, an embodiment of the adsorption concentration catalytic combustion treatment apparatus of the present invention will be described with reference to the drawings.

The embodiments described herein are specific embodiments of the present invention, and are intended to be illustrative of the concepts of the present invention, which are intended to be illustrative and exemplary, and should not be construed as limiting the scope of the embodiments of the present invention. In addition to the embodiments described herein, those skilled in the art will be able to employ other technical solutions which are obvious based on the disclosure of the claims and the specification of the present application, and these technical solutions include technical solutions which make any obvious replacement or modification for the embodiments described herein.

The drawings in the present specification are schematic views to assist in explaining the concept of the present invention, and schematically show the shapes of the respective portions and the mutual relationships thereof. It should be noted that for the sake of clarity in showing the structures of the various components of the embodiments of the present invention, the drawings are not drawn to the same scale. Like reference numerals are used to denote like parts.

As shown in fig. 1 to 3, the adsorption concentration catalytic combustion processing apparatus according to an embodiment of the present invention is installed by connecting an exhaust pipe platform support 1, an electric cabinet 8, an overhaul platform 6, etc. with adsorption devices through an adsorption pipeline 9, and the desorption device is connected through a desorption pipeline 10, and specifically includes a dry filter 11 disposed at an inlet, in order to avoid upstream fire or other dangers when the temperature of the activated carbon is raised and the desorption is performed, a fire prevention valve 13 is installed at the front end of the dry filter 11, the dry filter 11 is communicated with an activated carbon adsorption bed 7, and a post-adsorption fan 4 communicated with the rear end of the activated carbon adsorption bed 7 is connected to the high altitude exhaust pipe 3; in the embodiment, two activated carbon adsorption beds 7 which are arranged in parallel are adopted, and the adsorption valves 5 are arranged at the front end and the rear end of the two activated carbon adsorption beds 7, so that enough air volume for adsorption treatment is ensured, and normal adsorption treatment can be ensured by one activated carbon adsorption bed when the other activated carbon adsorption bed fails or is overhauled; when the air contains organic matter components, static electricity can be generated to ignite the air in the pipeline when the air speed in the pipeline is too high, the low air speed (10 m/s of the adsorption pipeline and 10m/s of the desorption pipeline) is adopted in the embodiment, a high-quality carbon steel plate (cold plate) is adopted as a main material of the pipeline during material selection, the friction between the air and the inner wall of the pipeline is reduced, and the pipeline is reliably grounded after the pipeline is installed.

The rear end of the activated carbon adsorption bed 7 is also communicated with a catalytic combustion bed 18, the front end of the catalytic combustion bed 18 is provided with a flame arrester 17 and an air door valve 16, and an air inlet and an air outlet of a desorption fan 15 are respectively communicated with an outlet of the catalytic combustion bed 18 and a hot air inlet of the mixed flow heat exchanger 14; the mixed flow fan 12 is connected with a cold air inlet of the mixed flow heat exchanger 14, and a mixed flow outlet of the mixed flow heat exchanger 14 is respectively communicated with the front end of the activated carbon adsorption bed 7 and the high-altitude discharge cylinder 3; the nitrogen making unit 2 is respectively communicated with the rear end of the activated carbon adsorption bed 7 and the inlet of the catalytic combustion bed 18 through a nitrogen pressure reducing valve, the inlet of the catalytic combustion bed 18 is communicated with the atmosphere through a catalytic refreshment valve 19, and in order to avoid the influence of the nitrogen making unit 2 on the normal adsorption or desorption process, nitrogen valves are arranged on inlet connecting pipelines of the nitrogen making unit 2, the rear end of the activated carbon adsorption bed 7 and the catalytic combustion bed 18.

The utility model discloses an adsorb concentrated catalytic combustion processing apparatus, under the traction of rear adsorption fan 4, organic waste gas after the dust removal of dry filter 11 passes through activated carbon adsorption bed 7, the harmful gas in the waste gas is held back in activated carbon with the physical method, discharge up to standard, adsorb the heat energy decomposition organic matter that produces with catalytic combustion simultaneously in handling, carry out the desorption work of heating up to the active carbon that adsorbs the saturation, the organic matter that will resolve out passes through chemical reaction (the organic matter produces oxidation reaction with noble metal palladium, platinum under certain temperature), decompose into carbon dioxide, water and heat energy, desorption adopts the analytic gasification organic matter of hot air, the analytic high concentration organic waste gas low temperature under the effect of catalyst decomposes, generate carbon dioxide, water and heat energy, heat energy passes through mixed flow heat exchanger thermostatic control back, get into activated carbon adsorption bed 7 and realize energy-conserving cycle desorption work, desorption air current temperature is obtained through temperature controller real-time supervision feedback P L C control analog quantity valve opening, in the desorption end cooling, activated carbon adsorption bed 7 pours into nitrogen gas back and closes the both ends valve and carries out the pressurize, reduce the oxygen content in the active carbon box, reduce the dangerous fire that the active carbon is being.

The utility model discloses an adsorb concentrated catalytic combustion processing apparatus passes through the organic matter among the active carbon adsorption organic waste gas, and after the active carbon saturation, through the concentrated regeneration active carbon of heating, concentrated waste gas high temperature combustion discharges, and the active carbon can realize lasting regeneration, has reduced the expense of enterprise.

The technical features disclosed above are not limited to the combinations with other features disclosed, and other combinations between the technical features can be performed by those skilled in the art according to the purpose of the invention to achieve the aim of the invention.

Claims

1. An adsorption concentration catalytic combustion treatment device is characterized by comprising a dry filter arranged at an inlet of the adsorption concentration catalytic combustion treatment device, wherein a fire damper is arranged at the front end of the dry filter, the dry filter is communicated with an active carbon adsorption bed, and a rear adsorption fan communicated with the rear end of the active carbon adsorption bed is connected to a high-altitude discharge cylinder; the rear end of the activated carbon adsorption bed is also communicated with the catalytic combustion bed, and an air inlet and an air outlet of the desorption fan are respectively communicated with an outlet of the catalytic combustion bed and a hot air inlet of the mixed flow heat exchanger; the mixed flow fan is connected to a cold air inlet of the mixed flow heat exchanger, and a mixed flow outlet of the mixed flow heat exchanger is respectively communicated with the front end of the activated carbon adsorption bed and the high-altitude discharge cylinder; the nitrogen making unit is respectively communicated with the rear end of the activated carbon adsorption bed and the inlet of the catalytic combustion bed through a nitrogen pressure reducing valve, and the inlet of the catalytic combustion bed is communicated with the atmosphere through a catalytic refreshment valve.

2. The adsorption, concentration and catalytic combustion treatment device according to claim 1, wherein two activated carbon adsorption beds are arranged in parallel, and adsorption gas valves are arranged at the front end and the rear end of the two activated carbon adsorption beds.